initial commit

AUTHORS.md

@@ -0,0 +1,4 @@
+# Authors
+
+* Mihailov-Ovsyannikov Daniil, <necron-x@mail.ru>
+  * Maintainer, 2023

CODE_OF_CONDUCT.md

@@ -0,0 +1,83 @@
+# Code of Conduct
+
+## What is this code of conduct for?
+
+Code of conduct is a current set of rules of the Open Mobile Platform
+which informs you how we expect
+the members of the Open Mobile Platform community
+will interact while contributing and communicating.
+We are committed to providing a friendly, safe and welcoming
+environment for all, regardless of gender, gender identity and expression,
+sexual orientation, ability, physical appearance, body size, race, age,
+socioeconomic status, religion (or lack thereof),
+or other marginalized aspect of community members.
+We expect all members of the Open Mobile Platform community
+to abide by this Code of Conduct whenever interacting
+in Open Mobile Platform venues
+(merge requests, pull requests, issues, 1-1 or group chat, meetups, conferences, etc.)
+
+## Examples of appropriate behavior
+
+* Using welcoming and inclusive language.
+* Being respectful of differing viewpoints and experiences.
+* Gracefully accepting constructive criticism.
+* Focusing on what is best for the community.
+* Showing empathy towards other community members.
+
+## Examples of inappropriate behavior
+
+Because we come from a variety of backgrounds,
+we do not want to assume that everyone has the same assumptions
+about what is and is not appropriate.
+Here are some examples of inappropriate behavior
+that are incompatible with our community's ethos:
+
+* spamming, trolling, intentionally disrupting conversations,
+  or irrelevant solicitation or advertisement;
+* making demeaning or discriminatory comments;
+* making negative assumptions about someone's background,
+  abilities, or intentions;
+* harassing or stalking individuals (online or in person).
+
+In general: treat others how you would like to be treated,
+were you in their place.
+Do ask questions.
+Do keep conflicts productively focused on technical issues.
+Do remember that we are all people, not robots,
+and all equally deserving of sensitivity and respect.
+
+## What will organizers do about inappropriate behavior?
+
+If we notice you doing or saying something inappropriate,
+an organizer will ask you to stop.
+We will not demonize you.
+But please do stop the inappropriate behavior
+so we can get back to writing and discussing code in a safe environment.
+If you have philosophical disagreements about what is actually inappropriate,
+please take them to a separate public or private conversation
+with an Open Mobile Platform maintainer
+so we don't turn pull requests into an ethics debate.
+If you keep doing unacceptable things,
+we will likely ban you, report you to the administration,
+or take other appropriate action.
+
+## What if I see or am subject to what feels like inappropriate behavior?
+
+Let us know.
+Please notify a community organizer as soon as possible.
+Full contact information is listed in the Contact Info section of this document.
+All communications will be kept strictly confidential,
+unless otherwise required by law.
+No issue will be considered too inconsequential or unimportant for us
+to have a conversation about.
+
+## Contact Info
+
+If you need to report an incident,
+please contact <community@omp.ru>.
+
+This work is licensed under a Creative Commons Attribution 3.0 Unported License
+For attribution requirements:
+«Open Mobile Platform Code of Conduct»
+Copyright (c) 2021 Open Mobile Platform LLC,
+used under a [Creative Commons Attribution Unported license](http://creativecommons.org/licenses/by/3.0/).

CONTRIBUTING.md

@@ -0,0 +1,169 @@
+# Contributor License Agreements
+
+Thank you for your interest in contributing
+to software projects managed by Open Mobile Platform («We» or «Us»).
+This contributor agreement («Agreement»)
+documents the rights granted by contributors to Us.
+To make this document effective,
+please sign it and send it to Us by email or electronic submission.
+This is a legally binding document,
+so please read it carefully before agreeing to it.
+The Agreement may cover more than one software project managed by Us.
+
+## 1. Definitions
+
+**«We» or «Us»** means Open Mobile Platform Limited Liability Company
+(Open Mobile Platform LLC),
+420500, Republic of Tatarstan, Verkhneuslonsky District,
+Innopolis, Universitetskaya Street, h. 7, office 59,
+OGRN (Primary State Registration Number) 1161690087020.
+
+**«You»** means the individual who Submits a Contribution to Us.
+
+**«Contribution»** means any work of authorship
+that is Submitted by You to Us
+in which You own or assert ownership of the Copyright.
+
+**«Copyright»** means all rights protecting works of authorship
+owned or controlled by You,
+including copyright, moral and neighboring rights, as appropriate,
+for the full term of their existence including any extensions by You.
+
+**«Material»** means the work of authorship
+which is made available by Us to third parties.
+When this Agreement covers more than one software project,
+the Material means the work of authorship
+to which the Contribution was Submitted.
+After You Submit the Contribution,
+it may be included in the Material.
+
+**«Submit»** means any form of electronic, verbal, or written communication
+sent to Us or our representatives,
+including but not limited to electronic mailing lists,
+source code control systems, and issue tracking systems
+that are managed by, or on behalf of, Us
+for the purpose of discussing and improving the Material,
+but excluding communication that is conspicuously marked
+or otherwise designated in writing by You as «Not a Contribution».
+
+**«Submission Date»** means the date
+on which You Submit a Contribution to Us.
+
+**«Effective Date»** means the date You execute this Agreement
+or the date You first Submit a Contribution to Us,
+whichever is earlier.
+
+**«Media»** means any portion of a Contribution which is not software.
+
+## 2. Grant of Rights
+
+### 2.1. Copyright License
+
+(a) You retain ownership of the Copyright in Your Contribution
+and have the same rights to use or license the Contribution
+which You would have had without entering into the Agreement.
+
+(b) To the maximum extent permitted by the relevant law,
+You grant to Us a perpetual, worldwide, non-exclusive,
+transferable, royalty-free, irrevocable license
+under the Copyright covering the Contribution,
+with the right to sublicense
+such rights through multiple tiers of sublicensees,
+to reproduce, modify, display, perform and distribute
+the Contribution as part of the Material;
+provided that this license is conditioned upon compliance with Section 2.3.
+
+### 2.2. Patent License
+
+For patent claims including, without limitation,
+method, process, and apparatus claims
+which You own, control or have the right to grant, now or in the future,
+You grant to Us a perpetual, worldwide, non-exclusive,
+transferable, royalty-free, irrevocable patent license,
+with the right to sublicense these rights to multiple tiers of sublicensees,
+to make, have made, use, sell, offer for sale, import
+and otherwise transfer the Contribution
+and the Contribution in combination with the Material
+(and portions of such combination).
+This license is granted only to the extent
+that the exercise of the licensed rights infringes such patent claims;
+and provided that this license is conditioned upon compliance with Section 2.3.
+
+### 2.3. Outbound License
+
+Based on the grant of rights in Sections 2.1 and 2.2,
+if We include Your Contribution in a Material,
+We may license the Contribution under any license,
+including copyleft, permissive, commercial, or proprietary licenses.
+As a condition on the exercise of this right,
+We agree to also license the Contribution
+under the terms of the license or licenses
+which We are using for the Material on the Submission Date.
+
+### 2.4. Our Rights
+
+You acknowledge that We are not obligated
+to use Your Contribution as part of the Material
+and may decide to include any Contribution We consider appropriate.
+
+## 3. Agreement
+
+You confirm that:
+
+(a) You have the legal authority to enter into this Agreement.
+
+(b) You own the Copyright and patent claims
+covering the Contribution which are required
+to grant the rights under Section 2.
+
+(c) The grant of rights under Section 2
+does not violate any grant of rights
+which You have made to third parties, including Your employer.
+If You are an employee,
+You have had Your employer approve this Agreement
+or sign the Entity version of this document.
+If You are less than eighteen years old,
+please have Your parents or guardian sign the Agreement.
+
+## 4. Disclaimer
+
+EXCEPT FOR THE EXPRESS WARRANTIES IN SECTION 3,
+THE CONTRIBUTION IS PROVIDED «AS IS».
+MORE PARTICULARLY, ALL EXPRESS OR IMPLIED WARRANTIES
+INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE
+AND NON-INFRINGEMENT ARE EXPRESSLY DISCLAIMED BY YOU TO US.
+TO THE EXTENT THAT ANY SUCH WARRANTIES CANNOT BE DISCLAIMED,
+SUCH WARRANTY IS LIMITED IN DURATION TO THE MINIMUM PERIOD PERMITTED BY LAW.
+
+## 5. Miscellaneous
+
+5.1. This Agreement will be governed by and construed
+in accordance with the laws of Russian Federation.
+
+5.2. This Agreement sets out the entire agreement between You
+and Us for Your Contributions to Us
+and overrides all other agreements or understandings.
+
+5.3. If You or We assign the rights or obligations
+received through this Agreement to a third party,
+as a condition of the assignment,
+that third party must agree in writing
+to abide by all the rights and obligations in the Agreement.
+
+5.4. The failure of either party to require performance
+by the other party of any provision of this Agreement in one situation
+shall not affect the right of a party
+to require such performance at any time in the future.
+A waiver of performance under a provision in one situation
+shall not be considered a waiver of the performance
+of the provision in the future or a waiver of the provision in its entirety.
+
+5.5. If any provision of this Agreement is found void and unenforceable,
+such provision will be replaced to the extent possible with a provision
+that comes closest to the meaning of the original provision
+and which is enforceable.
+The terms and conditions set forth in this Agreement
+shall apply notwithstanding any failure of essential purpose
+of this Agreement or any limited remedy
+to the maximum extent possible under law.

LICENSE.BSD-3-CLAUSE.md

@@ -0,0 +1,30 @@
+# The 3-Clause BSD License
+
+_Copyright (C) 2022 Open Mobile Platform LLC_
+
+Redistribution and use in source and binary forms,
+with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain
+   the above copyright notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce
+   the above copyright notice, this list of conditions and the following disclaimer
+   in the documentation and/or other materials provided with the distribution.
+3. Neither the name of the copyright holder nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

@@ -0,0 +1,26 @@
+# Application Template
+
+The project provides a template for Aurora OS applications.
+Not detect faces yet. =(
+
+The main purpose is to clearly demonstrate
+almost minimal source code
+to get a correct and extensible application.
+
+The source code of the project is provided under
+[the license](LICENSE.BSD-3-CLAUSE.md),
+that allows it to be used in third-party applications.
+
+The [contributor agreement](CONTRIBUTING.md)
+documents the rights granted by contributors to the Open Mobile Platform.
+
+[Code of conduct](CODE_OF_CONDUCT.md) is a current set of rules
+of the Open Mobile Platform which informs you how we expect
+the members of the community will interact while contributing and communicating.
+
+For information about contributors see [AUTHORS](AUTHORS.md).
+
+## Project Structure
+
+The project has a common structure
+of an application based on C++ and QML for Aurora OS.

app/app.pro

@@ -0,0 +1,96 @@
+################################################################################
+##
+## Copyright (C) 2022 Open Mobile Platform LLC.
+## Contact: https://community.omprussia.ru/open-source
+##
+## This file is part of the Aurora OS Application Template project.
+##
+## Redistribution and use in source and binary forms,
+## with or without modification, are permitted provided
+## that the following conditions are met:
+##
+## * Redistributions of source code must retain the above copyright notice,
+##   this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright notice,
+##   this list of conditions and the following disclaimer
+##   in the documentation and/or other materials provided with the distribution.
+## * Neither the name of the copyright holder nor the names of its contributors
+##   may be used to endorse or promote products derived from this software
+##   without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+## THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+## FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+## IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+## OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+## PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+## LOSS OF USE, DATA, OR PROFITS;
+## OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+## WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE)
+## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+## EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+##
+################################################################################
+
+QT += opengl
+
+TEMPLATE = app
+
+TARGET = com.gitlab.danyok.cameracv
+
+QT += multimedia core concurrent dbus
+
+DEFINES += \
+    DBUS_SERVICE=\\\"com.gitlab.danyok.cameracv\\\" \
+    DBUS_PATH=\\\"com/gitlab/danyok/cameracv\\\" \
+    DBUS_INTERFACE=\\\"com.gitlab.danyok.cameracv\\\" \
+
+CONFIG += \
+    sailfishapp \
+    sailfishapp_i18n \
+
+PKGCONFIG += \
+
+INCLUDEPATH += \
+    $$PWD/../libs/opencv/modules/core/include \
+    $$PWD/../libs/opencv/modules/imgproc/include \
+    $$PWD/../libs/opencv/modules/objdetect/include \
+    $$OUT_PWD/../libs/opencv \
+
+DEPENDPATH += \
+    $$PWD/../libs/opencv/modules/core/include \
+    $$PWD/../libs/opencv/modules/imgproc/include \
+    $$PWD/../libs/opencv/modules/objdetect/include \
+    $$OUT_PWD/../libs/opencv \
+
+LIBS += \
+    -L$$OUT_PWD/../libs/opencv/lib -lopencv_core -lopencv_imgproc -lopencv_objdetect -lopencv_calib3d -lopencv_features2d -lopencv_flann
+
+TRANSLATIONS += \
+    translations/com.gitlab.danyok.cameracv.ts \
+    translations/com.gitlab.danyok.cameracv-ru.ts \
+
+HEADERS += \
+    src/qcvdetectfilter.h \
+
+SOURCES += \
+    src/main.cpp \
+    src/qcvdetectfilter.cpp \
+
+DISTFILES += \
+    qml/icons/cameracv.svg \
+    qml/cover/DefaultCoverPage.qml \
+    qml/pages/MainPage.qml \
+    qml/pages/AboutPage.qml \
+    qml/cameracv.qml \
+    translations/*.ts \
+    com.gitlab.danyok.cameracv.desktop \
+
+SAILFISHAPP_ICONS = 86x86 108x108 128x128 172x172
+
+RESOURCES += \
+    res.qrc

app/com.gitlab.danyok.cameracv.desktop

@@ -0,0 +1,15 @@
+[Desktop Entry]
+Type=Application
+X-Nemo-Application-Type=silica-qt5
+X-Nemo-Single-Instance=no
+X-Aurora-Single-Cover=yes
+Icon=com.gitlab.danyok.cameracv
+Exec=/usr/bin/com.gitlab.danyok.cameracv
+Name=CameraCV
+Name[ru]=CameraCV
+
+[X-Sailjail]
+Permissions=Audio;Camera;Documents;Downloads;Internet;MediaIndexing;Microphone;Music;Pictures;PublicDir;RemovableMedia;UserDirs;Videos
+OrganizationName=com.gitlab.danyok
+ApplicationName=cameracv
+ExecDBus=/usr/bin/com.gitlab.danyok.cameracv %u

app/qml/cameracv.qml

@@ -0,0 +1,47 @@
+/*******************************************************************************
+**
+** Copyright (C) 2022 Open Mobile Platform LLC.
+** Contact: https://community.omprussia.ru/open-source
+**
+** This file is part of the Aurora OS Application Template project.
+**
+** Redistribution and use in source and binary forms,
+** with or without modification, are permitted provided
+** that the following conditions are met:
+**
+** * Redistributions of source code must retain the above copyright notice,
+**   this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright notice,
+**   this list of conditions and the following disclaimer
+**   in the documentation and/or other materials provided with the distribution.
+** * Neither the name of the copyright holder nor the names of its contributors
+**   may be used to endorse or promote products derived from this software
+**   without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+** FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+** OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+** LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*******************************************************************************/
+
+import QtQuick 2.0
+import Sailfish.Silica 1.0
+
+ApplicationWindow {
+    objectName: "applicationWindow"
+    initialPage: Qt.resolvedUrl("pages/MainPage.qml")
+    cover: Qt.resolvedUrl("cover/DefaultCoverPage.qml")
+    allowedOrientations: defaultAllowedOrientations
+}

app/qml/cover/DefaultCoverPage.qml

@@ -0,0 +1,54 @@
+/*******************************************************************************
+**
+** Copyright (C) 2022 Open Mobile Platform LLC.
+** Contact: https://community.omprussia.ru/open-source
+**
+** This file is part of the Aurora OS Application Template project.
+**
+** Redistribution and use in source and binary forms,
+** with or without modification, are permitted provided
+** that the following conditions are met:
+**
+** * Redistributions of source code must retain the above copyright notice,
+**   this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright notice,
+**   this list of conditions and the following disclaimer
+**   in the documentation and/or other materials provided with the distribution.
+** * Neither the name of the copyright holder nor the names of its contributors
+**   may be used to endorse or promote products derived from this software
+**   without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+** FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+** OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+** LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*******************************************************************************/
+
+import QtQuick 2.0
+import Sailfish.Silica 1.0
+
+CoverBackground {
+    objectName: "defaultCover"
+
+    CoverPlaceholder {
+        objectName: "placeholder"
+        text: qsTr("Application Template")
+        icon {
+            source: Qt.resolvedUrl("../icons/cameracv.svg")
+            sourceSize { width: icon.width; height: icon.height }
+        }
+        forceFit: true
+    }
+}

app/qml/icons/cameracv.svg

@@ -0,0 +1,17 @@
+<svg width="1024" height="1024" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+	<path id="Background" d="m0 357.5c0-180.46 0-245.38 56.06-301.44s120.99-56.06 326.74-56.06h258.39c205.76 0 270.68 0 326.74 56.06s56.06 120.99 56.06 326.74v258.39c0 205.76 0 270.68-56.06 326.74-56.06 56.059-120.99 56.059-326.74 56.059h-258.39c-205.76 0-270.68 0-326.74-56.059-56.06-56.06-56.06-120.99-56.06-326.74z" fill="#003e88"/>
+	<mask id="Frame_Mask" maskUnits="userSpaceOnUse">
+		<use xlink:href="#Background"/>
+	</mask>
+	<g fill="none" mask="url(#Frame_Mask)" stroke="#4169e1" stroke-width="1024">
+		<path d="m-2e-5 512h1024" stroke-dasharray="1.024, 49.152, 1.024, 0"/>
+		<path d="m512-2.41e-5v1024" stroke-dasharray="1.024, 49.152, 1.024, 0"/>
+		<path d="m-2e-5 512h1024" stroke-dasharray="2.56, 506.88, 2.56, 0"/>
+		<path d="m512-2.41e-5v1024" stroke-dasharray="2.56, 506.88, 2.56, 0"/>
+	</g>
+	<radialGradient id="Aurora_Gradient" cx="253.16" cy="572.03" r="346.86" gradientTransform="matrix(1.7323 .99965 -1 1.7329 540.61 -618.36)" gradientUnits="userSpaceOnUse">
+		<stop stop-color="#fff" offset="0"/>
+		<stop stop-color="#fff" stop-opacity="0" offset="1"/>
+	</radialGradient>
+	<path d="m820.13 625.96h-23.404a3.7229 3.7229 0 0 1-3.2222-5.5952l8.1207-14.064a12.388 12.388 0 0 0 0-12.41l-35.161-60.959-53.775 93.007h-17.831a3.7229 3.7229 0 0 1-3.2222-5.5952l59.109-102.32a12.388 12.388 0 0 0 0-12.41l-35.161-60.959-204.15 353.24-9.2745-16.045a9.8624 9.8624 0 0 1 0-9.9277l197.7-341.96a12.388 12.388 0 0 0 0-12.41l-35.161-60.959-204.21 353.19-9.2528-16.045a9.8624 9.8624 0 0 1 0-9.9277l197.75-342.05a12.388 12.388 0 0 0 0-12.41l-35.182-61.003-206.7 357.61h-17.722a3.7229 3.7229 0 0 1-3.2221-5.5952l211.92-366.76a12.453 12.453 0 0 0 0-12.41l-35.182-60.959-257.66 445.72h-17.831a3.7229 3.7229 0 0 1-3.2221-5.5952l263.02-455.02a12.388 12.388 0 0 0 0-12.41l-35.204-60.938-346.86 601.06h208.15l138.16 238.94 138.18-238.94h209.22z" fill="url(#Aurora_Gradient)"/>
+</svg>

app/qml/pages/AboutPage.qml

@@ -0,0 +1,87 @@
+/*******************************************************************************
+**
+** Copyright (C) 2022 Open Mobile Platform LLC.
+** Contact: https://community.omprussia.ru/open-source
+**
+** This file is part of the Aurora OS Application Template project.
+**
+** Redistribution and use in source and binary forms,
+** with or without modification, are permitted provided
+** that the following conditions are met:
+**
+** * Redistributions of source code must retain the above copyright notice,
+**   this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright notice,
+**   this list of conditions and the following disclaimer
+**   in the documentation and/or other materials provided with the distribution.
+** * Neither the name of the copyright holder nor the names of its contributors
+**   may be used to endorse or promote products derived from this software
+**   without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+** FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+** OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+** LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*******************************************************************************/
+
+import QtQuick 2.0
+import Sailfish.Silica 1.0
+
+Page {
+    objectName: "aboutPage"
+    allowedOrientations: Orientation.All
+
+    SilicaFlickable {
+        objectName: "flickable"
+        anchors.fill: parent
+        contentHeight: layout.height
+
+        Column {
+            id: layout
+            objectName: "layout"
+            width: parent.width
+
+            PageHeader {
+                objectName: "pageHeader"
+                title: qsTr("About Application")
+            }
+
+            Label {
+                objectName: "descriptionText"
+                anchors { left: parent.left; right: parent.right; margins: Theme.horizontalPageMargin }
+                color: palette.highlightColor
+                font.pixelSize: Theme.fontSizeSmall
+                textFormat: Text.RichText
+                wrapMode: Text.WordWrap
+                text: qsTr("#descriptionText")
+            }
+
+            SectionHeader {
+                objectName: "licenseHeader"
+                text: qsTr("3-Clause BSD License")
+            }
+
+            Label {
+                objectName: "licenseText"
+                anchors { left: parent.left; right: parent.right; margins: Theme.horizontalPageMargin }
+                color: palette.highlightColor
+                font.pixelSize: Theme.fontSizeSmall
+                textFormat: Text.RichText
+                wrapMode: Text.WordWrap
+                text: qsTr("#licenseText")
+            }
+        }
+    }
+}

app/qml/pages/MainPage.qml

@@ -0,0 +1,136 @@
+/*******************************************************************************
+**
+** Copyright (C) 2022 Open Mobile Platform LLC.
+** Contact: https://community.omprussia.ru/open-source
+**
+** This file is part of the Aurora OS Application Template project.
+**
+** Redistribution and use in source and binary forms,
+** with or without modification, are permitted provided
+** that the following conditions are met:
+**
+** * Redistributions of source code must retain the above copyright notice,
+**   this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright notice,
+**   this list of conditions and the following disclaimer
+**   in the documentation and/or other materials provided with the distribution.
+** * Neither the name of the copyright holder nor the names of its contributors
+**   may be used to endorse or promote products derived from this software
+**   without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+** FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+** OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+** LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*******************************************************************************/
+
+import QtQuick 2.6
+import Sailfish.Silica 1.0
+import QtMultimedia 5.6
+import com.danyok.classes 1.0
+
+Page {
+    objectName: "mainPage"
+    allowedOrientations: Orientation.Portrait
+
+    CvDetectFilter
+    {
+        id: testFilter
+        onObjectDetected:
+        {
+            if((w == 0) || (h == 0))
+            {
+                smile.visible = false;
+            }
+            else
+            {
+                var r = video.mapNormalizedRectToItem(Qt.rect(x, y, w, h));
+                smile.x = r.x;
+                smile.y = r.y;
+                smile.width = r.width;
+                smile.height = r.height;
+                smile.visible = true;
+                console.log(w , h);
+            }
+        }
+    }
+
+    Camera
+    {
+        id: camera
+    }
+
+    ShaderEffect
+    {
+        id: videoShader
+        property variant src: video
+        property variant source: video
+    }
+
+    Rectangle {
+        id: upRect
+        width: parent.width
+        height: parent.height * 0.1
+        anchors.top: parent.top
+
+        ListView {
+            anchors.fill: parent
+
+            model: QtMultimedia.availableCameras
+            delegate: Text {
+                text: modelData.displayName
+
+                MouseArea {
+                    anchors.fill: parent
+                    onClicked: {
+                        camera.stop()
+                        camera.deviceId = modelData.deviceId
+                        cameraStartTimer.start()
+                    }
+                }
+            }
+        }
+
+        Timer
+        {
+            id: cameraStartTimer; interval: 500;running: false; repeat: false; onTriggered: camera.start();
+        }
+
+    }
+
+    Rectangle {
+        id: rect1
+        width: parent.width
+        height: parent.height * 0.9
+        anchors.top: upRect.bottom
+        VideoOutput
+        {
+            id: video
+            anchors.fill: parent
+            source: camera
+            autoOrientation: false
+
+            filters: [testFilter]
+
+            Image
+            {
+                id: smile
+                source: "qrc:/res/smile.png"
+                visible: false
+            }
+        }
+    }
+
+}

app/res.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/">
+        <file>res/faceclassifier.xml</file>
+        <file>res/smile.png</file>
+    </qresource>
+</RCC>

app/src/main.cpp

@@ -0,0 +1,59 @@
+/*******************************************************************************
+**
+** Copyright (C) 2022 Open Mobile Platform LLC.
+** Contact: https://community.omprussia.ru/open-source
+**
+** This file is part of the Aurora OS Application Template project.
+**
+** Redistribution and use in source and binary forms,
+** with or without modification, are permitted provided
+** that the following conditions are met:
+**
+** * Redistributions of source code must retain the above copyright notice,
+**   this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright notice,
+**   this list of conditions and the following disclaimer
+**   in the documentation and/or other materials provided with the distribution.
+** * Neither the name of the copyright holder nor the names of its contributors
+**   may be used to endorse or promote products derived from this software
+**   without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+** FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+** OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+** LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*******************************************************************************/
+
+#include <QScopedPointer>
+#include <QGuiApplication>
+#include <QQuickView>
+
+#include <sailfishapp.h>
+#include "qcvdetectfilter.h"
+
+int main(int argc, char *argv[])
+{
+    QScopedPointer<QGuiApplication> application(SailfishApp::application(argc, argv));
+    application->setOrganizationName(QStringLiteral("com.gitlab.danyok"));
+    application->setApplicationName(QStringLiteral("cameracv"));
+
+    QScopedPointer<QQuickView> view(SailfishApp::createView());
+    qmlRegisterType<QCvDetectFilter>("com.danyok.classes", 1, 0, "CvDetectFilter");
+    qRegisterMetaType<QList<QRect>>("QList<QRect>");
+    view->setSource(SailfishApp::pathTo(QStringLiteral("qml/cameracv.qml")));
+    view->show();
+
+    return application->exec();
+}

app/src/qcvdetectfilter.cpp

@@ -0,0 +1,126 @@
+#include "qcvdetectfilter.h"
+
+cv::CascadeClassifier classifier;
+
+QVideoFilterRunnable* QCvDetectFilter::createFilterRunnable()
+{
+    return new QCvDetectFilterRunnable(this);
+}
+
+QImage QCvDetectFilterRunnable::QVideoFrameToQImage(QVideoFrame *videoFrame )
+{
+    if ( videoFrame->handleType() == QAbstractVideoBuffer::NoHandle )
+    {
+        QImage image(videoFrame->bits(),
+                     videoFrame->width(),
+                     videoFrame->height(),
+                     QVideoFrame::imageFormatFromPixelFormat(videoFrame->pixelFormat()));
+        if ( image.isNull() ) return QImage();
+        if ( image.format() != QImage::Format_ARGB32 ) return image.convertToFormat( QImage::Format_ARGB32 );
+        return image;
+    }
+    if ( videoFrame->handleType() == QAbstractVideoBuffer::GLTextureHandle )
+    {
+        QImage image( videoFrame->width(), videoFrame->height(), QImage::Format_ARGB32 );
+        GLuint textureId = static_cast<GLuint>( videoFrame->handle().toInt() );
+        QOpenGLContext* ctx = QOpenGLContext::currentContext();
+        QOpenGLFunctions* f = ctx->functions();
+        GLuint fbo;
+        f->glGenFramebuffers( 1, &fbo );
+        GLint prevFbo;
+        f->glGetIntegerv( GL_FRAMEBUFFER_BINDING, &prevFbo );
+        f->glBindFramebuffer( GL_FRAMEBUFFER, fbo );
+        f->glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,  GL_TEXTURE_2D, textureId, 0 );
+        f->glReadPixels( 0, 0,  videoFrame->width(),  videoFrame->height(), GL_RGBA, GL_UNSIGNED_BYTE, image.bits() );
+        f->glBindFramebuffer( GL_FRAMEBUFFER, static_cast<GLuint>( prevFbo ) );
+        return image.rgbSwapped();
+    }
+    return QImage();
+}
+
+QVideoFrame QCvDetectFilterRunnable::run(QVideoFrame *input, const QVideoSurfaceFormat &surfaceFormat, RunFlags flags)
+{
+    Q_UNUSED(flags);
+    input->map(QAbstractVideoBuffer::ReadOnly);
+//    qDebug() << "HandleType: " << surfaceFormat.handleType();
+
+    if(surfaceFormat.handleType() == QAbstractVideoBuffer::NoHandle or surfaceFormat.handleType() == QAbstractVideoBuffer::GLTextureHandle)
+    {
+        QImage image = QVideoFrameToQImage(input);
+        image = image.convertToFormat(QImage::Format_RGB888);
+        cv::Mat mat(image.height(),
+                         image.width(),
+                         CV_8UC3,
+                         image.bits(),
+                         image.bytesPerLine());
+
+        cv::flip(mat, mat, 0);
+
+        if(classifier.empty())
+        {
+            QFile xml(":/res/faceclassifier.xml");
+            if(xml.open(QFile::ReadOnly | QFile::Text))
+            {
+                QTemporaryFile temp;
+                if(temp.open())
+                {
+                    temp.write(xml.readAll());
+                    temp.close();
+                    if(classifier.load(temp.fileName().toStdString()))
+                    {
+                        qDebug() << "Successfully loaded classifier!";
+                    }
+                    else
+                    {
+                        qDebug() << "Could not load classifier.";
+                    }
+                }
+                else
+                {
+                    qDebug() << "Can't open temp file.";
+                }
+            }
+            else
+            {
+                qDebug() << "Can't open XML.";
+            }
+        }
+        else
+        {
+            std::vector<cv::Rect> detected;
+
+            /*
+             * Resize in not mandatory but it can speed up things quite a lot!
+             */
+            QSize resized = image.size().scaled(320, 240, Qt::KeepAspectRatio);
+            cv::resize(mat, mat, cv::Size(resized.width(), resized.height()));
+
+            classifier.detectMultiScale(mat, detected, 1.1);
+
+            // We'll use only the first detection to make sure things are not slow on the qml side
+            if(detected.size() > 0)
+            {
+                // Normalize x,y,w,h to values between 0..1 and send them to UI
+                emit filter->objectDetected(float(detected[0].x) / float(mat.cols),
+                        float(detected[0].y) / float(mat.rows),
+                        float(detected[0].width) / float(mat.cols),
+                        float(detected[0].height) / float(mat.rows));
+                qDebug() << "Object detected!";
+            }
+            else
+            {
+                emit filter->objectDetected(0.0,
+                                            0.0,
+                                            0.0,
+                                            0.0);
+            }
+        }
+    }
+    else
+    {
+        qDebug() << "Other surface formats are not supported yet!";
+    }
+
+    input->unmap();
+    return *input;
+}

app/src/qcvdetectfilter.h

@@ -0,0 +1,38 @@
+#ifndef QCVDETECTFILTER_H
+#define QCVDETECTFILTER_H
+
+#include <QAbstractVideoFilter>
+#include <QDebug>
+#include <QTemporaryFile>
+#include <QMutex>
+#include "opencv2/core.hpp"
+#include "opencv2/imgproc.hpp"
+#include "opencv2/objdetect.hpp"
+#include <QtOpenGL>
+
+class QCvDetectFilter : public QAbstractVideoFilter
+{
+    Q_OBJECT
+public:
+    QVideoFilterRunnable *createFilterRunnable();
+
+signals:
+    void objectDetected(float x, float y, float w, float h);
+
+public slots:
+
+};
+
+class QCvDetectFilterRunnable : public QVideoFilterRunnable
+{
+public:
+    QCvDetectFilterRunnable(QCvDetectFilter *creator) {filter = creator;}
+    QVideoFrame run(QVideoFrame *input, const QVideoSurfaceFormat &surfaceFormat, RunFlags flags);
+    QImage QVideoFrameToQImage(QVideoFrame *videoFrame );
+
+private:
+    void dft(cv::InputArray input, cv::OutputArray output);
+    QCvDetectFilter *filter;
+};
+
+#endif // QCVDETECTFILTER_H

app/translations/com.gitlab.danyok.cameracv-ru.ts

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="ru">
+<context>
+    <name>AboutPage</name>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="58"/>
+        <source>About Application</source>
+        <translation>О приложении</translation>
+    </message>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="68"/>
+        <source>#descriptionText</source>
+        <translation>&lt;p&gt;Проект предоставляет шаблон приложений для ОС&amp;nbsp;Аврора.&lt;/p&gt;
+&lt;p&gt;Основная цель&amp;nbsp;— наглядно продемонстрировать практически минимальный исходный код для получения корректного и расширяемого приложения.&lt;/p&gt;</translation>
+    </message>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="83"/>
+        <source>#licenseText</source>
+        <translation>&lt;p&gt;&lt;i&gt;Copyright (C) 2022 Open Mobile Platform LLC&lt;/i&gt;&lt;/p&gt;
+&lt;p&gt;Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:&lt;/p&gt;
+&lt;ol&gt;
+  &lt;li&gt;Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.&lt;/li&gt;
+  &lt;li&gt;Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.&lt;/li&gt;
+  &lt;li&gt;Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.&lt;/li&gt;
+&lt;/ol&gt;
+&lt;p&gt;THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&lt;/p&gt;</translation>
+    </message>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="73"/>
+        <source>3-Clause BSD License</source>
+        <translation>Лицензия 3-Clause BSD</translation>
+    </message>
+</context>
+<context>
+    <name>DefaultCoverPage</name>
+    <message>
+        <location filename="../qml/cover/DefaultCoverPage.qml" line="47"/>
+        <source>Application Template</source>
+        <translation>Шаблон приложения</translation>
+    </message>
+</context>
+</TS>

app/translations/com.gitlab.danyok.cameracv.ts

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="en">
+<context>
+    <name>AboutPage</name>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="58"/>
+        <source>About Application</source>
+        <translation>About Application</translation>
+    </message>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="68"/>
+        <source>#descriptionText</source>
+        <translation>&lt;p&gt;The project provides a template for Aurora OS applications.&lt;/p&gt;
+&lt;p&gt;The main purpose is to clearly demonstrate almost minimal source code to get a correct and extensible application.&lt;/p&gt;</translation>
+    </message>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="83"/>
+        <source>#licenseText</source>
+        <translation>&lt;p&gt;&lt;i&gt;Copyright (C) 2022 Open Mobile Platform LLC&lt;/i&gt;&lt;/p&gt;
+&lt;p&gt;Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:&lt;/p&gt;
+&lt;ol&gt;
+  &lt;li&gt;Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.&lt;/li&gt;
+  &lt;li&gt;Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.&lt;/li&gt;
+  &lt;li&gt;Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.&lt;/li&gt;
+&lt;/ol&gt;
+&lt;p&gt;THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&lt;/p&gt;</translation>
+    </message>
+    <message>
+        <location filename="../qml/pages/AboutPage.qml" line="73"/>
+        <source>3-Clause BSD License</source>
+        <translation>3-Clause BSD License</translation>
+    </message>
+</context>
+<context>
+    <name>DefaultCoverPage</name>
+    <message>
+        <location filename="../qml/cover/DefaultCoverPage.qml" line="47"/>
+        <source>Application Template</source>
+        <translation>Application Template</translation>
+    </message>
+</context>
+</TS>

com.gitlab.danyok.cameracv.subdirs.pro

@@ -0,0 +1,54 @@
+################################################################################
+##
+## Copyright (C) 2022 Open Mobile Platform LLC.
+## Contact: https://community.omprussia.ru/open-source
+##
+## This file is part of the Aurora OS Application Template project.
+##
+## Redistribution and use in source and binary forms,
+## with or without modification, are permitted provided
+## that the following conditions are met:
+##
+## * Redistributions of source code must retain the above copyright notice,
+##   this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright notice,
+##   this list of conditions and the following disclaimer
+##   in the documentation and/or other materials provided with the distribution.
+## * Neither the name of the copyright holder nor the names of its contributors
+##   may be used to endorse or promote products derived from this software
+##   without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+## THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+## FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+## IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+## OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+## PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+## LOSS OF USE, DATA, OR PROFITS;
+## OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+## WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE)
+## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+## EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+##
+################################################################################
+
+TEMPLATE = subdirs
+
+SUBDIRS = \
+    libs \
+    app \
+
+app.depends = libs
+
+OTHER_FILES += \
+    rpm/com.gitlab.danyok.cameracv.spec \
+    AUTHORS.md \
+    CODE_OF_CONDUCT.md \
+    CONTRIBUTING.md \
+    LICENSE.BSD-3-CLAUSE.md \
+    README.md \
+

libs/libs.pro

@@ -0,0 +1,92 @@
+################################################################################
+##
+## Copyright (C) 2021-2022 Open Mobile Platform LLC.
+## Contact: https://community.omprussia.ru/open-source
+##
+## This file is part of the Document Scanner project.
+##
+## Redistribution and use in source and binary forms,
+## with or without modification, are permitted provided
+## that the following conditions are met:
+##
+## * Redistributions of source code must retain the above copyright notice,
+##   this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright notice,
+##   this list of conditions and the following disclaimer
+##   in the documentation and/or other materials provided with the distribution.
+## * Neither the name of the copyright holder nor the names of its contributors
+##   may be used to endorse or promote products derived from this software
+##   without specific prior written permission.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+## THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+## FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+## IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+## OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+## PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+## LOSS OF USE, DATA, OR PROFITS;
+## OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+## WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE)
+## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+## EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+##
+################################################################################
+
+TEMPLATE = aux
+
+OPENCV_PATH = $$OUT_PWD/opencv
+
+opencv_build.commands = \
+    cmake -S $$IN_PWD/opencv/ -B $$OPENCV_PATH \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_SKIP_RPATH=ON \
+    -DBUILD_LIST=core,imgproc,objdetect \
+    -DBUILD_EXAMPLES=OFF \
+    -DBUILD_DOCS=OFF \
+    -DBUILD_PERF_TESTS=OFF \
+    -DBUILD_TESTS=OFF \
+    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_ZLIB=ON \
+    -DBUILD_TIFF=ON \
+    -DBUILD_WEBP=ON \
+    -DBUILD_OPENJPEG=ON \
+    -DBUILD_PNG=ON \
+    -DBUILD_TIFF=ON \
+    -DBUILD_WEBP=ON \
+    -DBUILD_OPENJPEG=ON \
+    -DBUILD_PNG=ON \
+    -DBUILD_PROTOBUF=OFF \
+    -DPROTOBUF_UPDATE_FILES=ON \
+    -DCV_TRACE=OFF \
+    -DENABLE_PRECOMPILED_HEADERS=OFF \
+    -DOPENCV_GENERATE_PKGCONFIG=OFF \
+    -DOpenGL_GL_PREFERENCE=GLVND \
+    -DWITH_CAROTENE=OFF \
+    -DWITH_GDAL=OFF \
+    -DWITH_IPP=OFF \
+    -DWITH_ITT=OFF \
+    -DWITH_OPENGL=ON \
+    -DWITH_OPENCL=OFF \
+    -DWITH_OPENEXR=OFF \
+    -DWITH_QT=ON \
+    -DWITH_V4L=OFF; \
+    make $$OPENCV_MFLAGS -C $$OPENCV_PATH \
+
+opencv_install.depends = opencv_build
+opencv_install.path = /usr/share/com.gitlab.danyok.cameracv/lib
+opencv_install.files = $$OPENCV_PATH/lib/*.so*
+opencv_install.CONFIG = no_check_exist # this flag is necessary for the correct generation of the makefile
+
+PRE_TARGETDEPS += \
+    opencv_build \
+
+QMAKE_EXTRA_TARGETS += \
+    opencv_build \
+    opencv_install \
+
+INSTALLS += \
+    opencv_install \

libs/opencv/.gitignore

@@ -0,0 +1,27 @@
+# ignore dot files/directories
+.*
+!.gitignore
+
+*.autosave
+*.pyc
+*.user
+*~
+Thumbs.db
+tags
+tegra/
+bin/
+*.sdf
+*.opensdf
+*.obj
+*.stamp
+*.depend
+*.rule
+*.tmp
+*/debug
+*.suo
+*.log
+*.tlog
+build
+node_modules
+CMakeSettings.json
+xcuserdata/

libs/opencv/3rdparty/carotene/.gitignore

@@ -0,0 +1,8 @@
+# Gedit temp files
+*~
+
+# Qt Creator file
+*.user
+
+# MacOS-specific (Desktop Services Store)
+.DS_Store

libs/opencv/3rdparty/carotene/CMakeLists.txt

@@ -0,0 +1,44 @@
+cmake_minimum_required(VERSION 2.8.11 FATAL_ERROR)
+
+project(Carotene)
+
+set(CAROTENE_NS "carotene" CACHE STRING "Namespace for Carotene definitions")
+
+set(CAROTENE_INCLUDE_DIR include)
+set(CAROTENE_SOURCE_DIR src)
+
+file(GLOB_RECURSE carotene_headers RELATIVE "${CMAKE_CURRENT_LIST_DIR}" "${CAROTENE_INCLUDE_DIR}/*.hpp")
+file(GLOB_RECURSE carotene_sources RELATIVE "${CMAKE_CURRENT_LIST_DIR}" "${CAROTENE_SOURCE_DIR}/*.cpp"
+                                                                        "${CAROTENE_SOURCE_DIR}/*.hpp")
+
+include_directories(${CAROTENE_INCLUDE_DIR})
+
+if(CMAKE_COMPILER_IS_GNUCC)
+    set(CMAKE_CXX_FLAGS "-fvisibility=hidden ${CMAKE_CXX_FLAGS}")
+
+    # allow more inlines - these parameters improve performance for:
+    # - matchTemplate about 5-10%
+    # - goodFeaturesToTrack 10-20%
+    # - cornerHarris 30% for some cases
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "10.0.0")
+        set_source_files_properties(${carotene_sources} COMPILE_FLAGS "--param ipcp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
+    else()
+        set_source_files_properties(${carotene_sources} COMPILE_FLAGS "--param ipa-cp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
+    endif()
+endif()
+
+add_library(carotene_objs OBJECT EXCLUDE_FROM_ALL
+  ${carotene_headers}
+  ${carotene_sources}
+)
+
+if(NOT CAROTENE_NS STREQUAL "carotene")
+    target_compile_definitions(carotene_objs PUBLIC "-DCAROTENE_NS=${CAROTENE_NS}")
+endif()
+
+if(WITH_NEON)
+    target_compile_definitions(carotene_objs PRIVATE "-DWITH_NEON")
+endif()
+
+# we add dummy file to fix XCode build
+add_library(carotene STATIC ${OPENCV_3RDPARTY_EXCLUDE_FROM_ALL} "$<TARGET_OBJECTS:carotene_objs>" "${CAROTENE_SOURCE_DIR}/dummy.cpp")

libs/opencv/3rdparty/carotene/README.md

@@ -0,0 +1,2 @@
+This is Carotene, a low-level library containing optimized CPU routines
+that are useful for computer vision algorithms.

libs/opencv/3rdparty/carotene/hal/CMakeLists.txt

@@ -0,0 +1,102 @@
+cmake_minimum_required(VERSION 2.8.8 FATAL_ERROR)
+
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
+
+set(TEGRA_HAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
+set(CAROTENE_DIR "${TEGRA_HAL_DIR}/../")
+
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)")
+  set(ARM TRUE)
+elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64.*|AARCH64.*")
+  set(AARCH64 TRUE)
+endif()
+
+ocv_warnings_disable(CMAKE_CXX_FLAGS -Wunused-function)
+
+set(TEGRA_COMPILER_FLAGS "")
+
+if(CV_GCC OR CV_CLANG)
+  # Generate unwind information even for functions that can't throw/propagate exceptions.
+  # This lets debuggers and such get non-broken backtraces for such functions, even without debugging symbols.
+  list(APPEND TEGRA_COMPILER_FLAGS -funwind-tables)
+endif()
+
+if(CV_GCC OR CV_CLANG)
+  if(X86 OR ARMEABI_V6 OR (MIPS AND ANDROID_COMPILER_VERSION VERSION_LESS "4.6"))
+    list(APPEND TEGRA_COMPILER_FLAGS -fweb -fwrapv -frename-registers -fsched-stalled-insns-dep=100 -fsched-stalled-insns=2)
+  elseif(CV_CLANG)
+    list(APPEND TEGRA_COMPILER_FLAGS -fwrapv)
+  else()
+    list(APPEND TEGRA_COMPILER_FLAGS -fweb -fwrapv -frename-registers -fsched2-use-superblocks -fsched2-use-traces
+                                     -fsched-stalled-insns-dep=100 -fsched-stalled-insns=2)
+  endif()
+  if((ANDROID_COMPILER_IS_CLANG OR NOT ANDROID_COMPILER_VERSION VERSION_LESS "4.7") AND ANDROID_NDK_RELEASE STRGREATER "r8d" )
+    list(APPEND TEGRA_COMPILER_FLAGS -fgraphite -fgraphite-identity -floop-block -floop-flatten -floop-interchange
+                                     -floop-strip-mine -floop-parallelize-all -ftree-loop-linear)
+  endif()
+endif()
+
+string(REPLACE ";" " " TEGRA_COMPILER_FLAGS "${TEGRA_COMPILER_FLAGS}")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${TEGRA_COMPILER_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TEGRA_COMPILER_FLAGS}")
+
+if(ARMEABI_V7A)
+  if(CV_GCC OR CV_CLANG)
+    set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-tree-vectorize" )
+    set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-tree-vectorize" )
+  endif()
+endif()
+
+if(WITH_LOGS)
+  add_definitions(-DHAVE_LOGS)
+endif()
+
+set(CAROTENE_NS "carotene_o4t" CACHE STRING "" FORCE)
+
+function(compile_carotene)
+  if(";${CPU_BASELINE_FINAL};" MATCHES ";NEON;")
+    set(WITH_NEON ON)
+  endif()
+
+  add_subdirectory("${CAROTENE_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/carotene")
+endfunction()
+
+compile_carotene()
+
+include_directories("${CAROTENE_DIR}/include")
+
+get_target_property(carotene_defs carotene_objs INTERFACE_COMPILE_DEFINITIONS)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS ${carotene_defs})
+
+  if(CV_GCC)
+    # allow more inlines - these parameters improve performance for:
+    #   matchTemplate about 5-10%
+    #   goodFeaturesToTrack 10-20%
+    #   cornerHarris 30% for some cases
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "10.0.0")
+      set_source_files_properties(impl.cpp $<TARGET_OBJECTS:carotene_objs> COMPILE_FLAGS "--param ipcp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
+    else()
+      set_source_files_properties(impl.cpp $<TARGET_OBJECTS:carotene_objs> COMPILE_FLAGS "--param ipa-cp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
+    endif()
+#    set_source_files_properties(impl.cpp $<TARGET_OBJECTS:carotene_objs> COMPILE_FLAGS "--param ipcp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
+  endif()
+
+# we add dummy file to fix XCode build
+add_library(tegra_hal STATIC $<TARGET_OBJECTS:carotene_objs> "dummy.cpp")
+set_target_properties(tegra_hal PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${3P_LIBRARY_OUTPUT_PATH})
+set(OPENCV_SRC_DIR "${CMAKE_SOURCE_DIR}")
+if(NOT BUILD_SHARED_LIBS)
+  ocv_install_target(tegra_hal EXPORT OpenCVModules ARCHIVE DESTINATION ${OPENCV_3P_LIB_INSTALL_PATH} COMPONENT dev)
+endif()
+target_include_directories(tegra_hal PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${OPENCV_SRC_DIR}/modules/core/include)
+
+set(CAROTENE_HAL_VERSION "0.0.1" PARENT_SCOPE)
+set(CAROTENE_HAL_LIBRARIES "tegra_hal" PARENT_SCOPE)
+set(CAROTENE_HAL_HEADERS "carotene/tegra_hal.hpp" PARENT_SCOPE)
+set(CAROTENE_HAL_INCLUDE_DIRS "${CMAKE_BINARY_DIR}" PARENT_SCOPE)
+
+configure_file("tegra_hal.hpp" "${CMAKE_BINARY_DIR}/carotene/tegra_hal.hpp" COPYONLY)
+configure_file("${CAROTENE_DIR}/include/carotene/definitions.hpp" "${CMAKE_BINARY_DIR}/carotene/definitions.hpp" COPYONLY)
+configure_file("${CAROTENE_DIR}/include/carotene/functions.hpp" "${CMAKE_BINARY_DIR}/carotene/functions.hpp" COPYONLY)
+configure_file("${CAROTENE_DIR}/include/carotene/types.hpp" "${CMAKE_BINARY_DIR}/carotene/types.hpp" COPYONLY)

libs/opencv/3rdparty/carotene/hal/dummy.cpp

@@ -0,0 +1,2 @@
+// This file is needed for compilation on some platforms e.g. with XCode generator
+// Related issue: https://gitlab.kitware.com/cmake/cmake/-/issues/17457

libs/opencv/3rdparty/carotene/include/carotene/definitions.hpp

@@ -0,0 +1,47 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_DEFINITIONS_HPP
+#define CAROTENE_DEFINITIONS_HPP
+
+#ifndef CAROTENE_NS
+#define CAROTENE_NS carotene
+#endif
+
+#endif

libs/opencv/3rdparty/carotene/include/carotene/types.hpp

@@ -0,0 +1,125 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_TYPES_HPP
+#define CAROTENE_TYPES_HPP
+
+#include <carotene/definitions.hpp>
+#include <stdint.h>
+#include <cstddef>
+
+#ifndef UINT32_MAX
+    #define UINT32_MAX (4294967295U)
+#endif
+
+namespace CAROTENE_NS {
+    using std::size_t;
+    using std::ptrdiff_t;
+
+    typedef int8_t   s8;
+    typedef uint8_t  u8;
+    typedef int16_t  s16;
+    typedef uint16_t u16;
+    typedef int32_t  s32;
+    typedef uint32_t u32;
+    typedef float    f32;
+    typedef int64_t  s64;
+    typedef uint64_t u64;
+    typedef double   f64;
+
+    typedef ptrdiff_t  stride_t;
+
+    enum CONVERT_POLICY
+    {
+        CONVERT_POLICY_WRAP,
+        CONVERT_POLICY_SATURATE
+    };
+
+    enum BORDER_MODE
+    {
+        BORDER_MODE_UNDEFINED,
+        BORDER_MODE_CONSTANT,
+        BORDER_MODE_REPLICATE,
+        BORDER_MODE_REFLECT,
+        BORDER_MODE_REFLECT101,
+        BORDER_MODE_WRAP
+    };
+
+    enum FLIP_MODE
+    {
+        FLIP_HORIZONTAL_MODE = 1,
+        FLIP_VERTICAL_MODE = 2,
+        FLIP_BOTH_MODE = FLIP_HORIZONTAL_MODE | FLIP_VERTICAL_MODE
+    };
+
+    enum COLOR_SPACE
+    {
+        COLOR_SPACE_BT601,
+        COLOR_SPACE_BT709
+    };
+
+    struct Size2D {
+        Size2D() : width(0), height(0) {}
+        Size2D(size_t width_, size_t height_) : width(width_), height(height_) {}
+
+        size_t width;
+        size_t height;
+
+        inline size_t total() const
+        {
+            return width * height;
+        }
+    };
+
+    struct Margin {
+        Margin() : left(0), right(0), top(0), bottom(0) {}
+        Margin(size_t left_, size_t right_, size_t top_, size_t bottom_)
+            : left(left_), right(right_), top(top_), bottom(bottom_) {}
+
+        // these are measured in elements
+        size_t left, right, top, bottom;
+    };
+
+    struct KeypointStore {
+        virtual void push(f32 kpX, f32 kpY, f32 kpSize, f32 kpAngle=-1, f32 kpResponse=0, s32 kpOctave=0, s32 kpClass_id=-1) = 0;
+        virtual ~KeypointStore() {};
+    };
+}
+
+#endif

libs/opencv/3rdparty/carotene/src/absdiff.cpp

@@ -0,0 +1,241 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include <algorithm>
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <typename T>
+struct AbsDiff
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vabdq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vabd(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = src0[0] >= src1[0] ? src0[0] - src1[0] : src1[0] - src0[0];
+    }
+};
+
+template <typename T>
+struct AbsDiffSigned
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        typename internal::VecTraits<T>::vec128 v_min = internal::vminq(v_src0, v_src1);
+        typename internal::VecTraits<T>::vec128 v_max = internal::vmaxq(v_src0, v_src1);
+        v_dst = internal::vqsubq(v_max, v_min);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        typename internal::VecTraits<T>::vec64 v_min = internal::vmin(v_src0, v_src1);
+        typename internal::VecTraits<T>::vec64 v_max = internal::vmax(v_src0, v_src1);
+        v_dst = internal::vqsub(v_max, v_min);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = internal::saturate_cast<T>(src0[0] >= src1[0] ? (s64)src0[0] - src1[0] : (s64)src1[0] - src0[0]);
+    }
+};
+
+} // namespace
+
+#endif
+
+void absDiff(const Size2D &size,
+             const u8 *src0Base, ptrdiff_t src0Stride,
+             const u8 *src1Base, ptrdiff_t src1Stride,
+             u8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, AbsDiff<u8>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void absDiff(const Size2D &size,
+             const u16 *src0Base, ptrdiff_t src0Stride,
+             const u16 *src1Base, ptrdiff_t src1Stride,
+             u16 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, AbsDiff<u16>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void absDiff(const Size2D &size,
+             const s8 *src0Base, ptrdiff_t src0Stride,
+             const s8 *src1Base, ptrdiff_t src1Stride,
+             s8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, AbsDiffSigned<s8>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void absDiff(const Size2D &size,
+             const s16 *src0Base, ptrdiff_t src0Stride,
+             const s16 *src1Base, ptrdiff_t src1Stride,
+             s16 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, AbsDiffSigned<s16>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void absDiff(const Size2D &size,
+             const s32 *src0Base, ptrdiff_t src0Stride,
+             const s32 *src1Base, ptrdiff_t src1Stride,
+             s32 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, AbsDiffSigned<s32>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void absDiff(const Size2D &size,
+             const f32 * src0Base, ptrdiff_t src0Stride,
+             const f32 * src1Base, ptrdiff_t src1Stride,
+             f32 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, AbsDiff<f32>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/accumulate.cpp

@@ -0,0 +1,408 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+void accumulate(const Size2D &size,
+                const u8 *srcBase, ptrdiff_t srcStride,
+                s16 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8* src = internal::getRowPtr(srcBase, srcStride, i);
+        s16* dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            internal::prefetch(dst + j);
+            uint8x16_t v_src = vld1q_u8(src + j);
+            int16x8_t v_dst0 = vld1q_s16(dst + j);
+            int16x8_t v_dst1 = vld1q_s16(dst + j + 8);
+            int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src)));
+            int16x8_t v_src1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src)));
+            v_dst0 = vqaddq_s16(v_dst0, v_src0);
+            v_dst1 = vqaddq_s16(v_dst1, v_src1);
+            vst1q_s16(dst + j, v_dst0);
+            vst1q_s16(dst + j + 8, v_dst1);
+        }
+        for (; j < roiw8; j += 8)
+        {
+            uint8x8_t v_src = vld1_u8(src + j);
+            int16x8_t v_src16 = vreinterpretq_s16_u16(vmovl_u8(v_src));
+            int16x8_t v_dst = vld1q_s16(dst + j);
+            v_dst = vqaddq_s16(v_dst, v_src16);
+            vst1q_s16(dst + j, v_dst);
+        }
+
+        for (; j < size.width; j++)
+            dst[j] = internal::saturate_cast<s16>(src[j] + dst[j]);
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <int shift>
+void accumulateSquareConst(const Size2D &size,
+                           const u8 *srcBase, ptrdiff_t srcStride,
+                           s16 *dstBase, ptrdiff_t dstStride)
+{
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8* src = internal::getRowPtr(srcBase, srcStride, i);
+        s16* dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            internal::prefetch(dst + j);
+            uint8x16_t v_src = vld1q_u8(src + j);
+            int16x8_t v_dst0 = vld1q_s16(dst + j), v_dst1 = vld1q_s16(dst + j + 8);
+            int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src)));
+            int16x8_t v_src1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src)));
+
+            int16x4_t v_srclo = vget_low_s16(v_src0), v_srchi = vget_high_s16(v_src0);
+            v_dst0 = vcombine_s16(vqmovn_s32(vaddw_s16(vshrq_n_s32(vmull_s16(v_srclo, v_srclo), shift), vget_low_s16(v_dst0))),
+                                  vqmovn_s32(vaddw_s16(vshrq_n_s32(vmull_s16(v_srchi, v_srchi), shift), vget_high_s16(v_dst0))));
+
+            v_srclo = vget_low_s16(v_src1);
+            v_srchi = vget_high_s16(v_src1);
+            v_dst1 = vcombine_s16(vqmovn_s32(vaddw_s16(vshrq_n_s32(vmull_s16(v_srclo, v_srclo), shift), vget_low_s16(v_dst1))),
+                                  vqmovn_s32(vaddw_s16(vshrq_n_s32(vmull_s16(v_srchi, v_srchi), shift), vget_high_s16(v_dst1))));
+
+            vst1q_s16(dst + j, v_dst0);
+            vst1q_s16(dst + j + 8, v_dst1);
+        }
+        for (; j < roiw8; j += 8)
+        {
+            int16x8_t v_src = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src + j)));
+            int16x8_t v_dst = vld1q_s16(dst + j);
+            int16x4_t v_srclo = vget_low_s16(v_src), v_srchi = vget_high_s16(v_src);
+            v_dst = vcombine_s16(vqmovn_s32(vaddw_s16(vshrq_n_s32(vmull_s16(v_srclo, v_srclo), shift), vget_low_s16(v_dst))),
+                                 vqmovn_s32(vaddw_s16(vshrq_n_s32(vmull_s16(v_srchi, v_srchi), shift), vget_high_s16(v_dst))));
+            vst1q_s16(dst + j, v_dst);
+        }
+
+        for (; j < size.width; j++)
+        {
+            s32 srcVal = src[j];
+            dst[j] = internal::saturate_cast<s16>(dst[j] + ((srcVal * srcVal) >> shift));
+        }
+    }
+}
+
+template <>
+void accumulateSquareConst<0>(const Size2D &size,
+                              const u8 *srcBase, ptrdiff_t srcStride,
+                              s16 *dstBase, ptrdiff_t dstStride)
+{
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8* src = internal::getRowPtr(srcBase, srcStride, i);
+        s16* dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            internal::prefetch(dst + j);
+            uint8x16_t v_src = vld1q_u8(src + j);
+            int16x8_t v_dst0 = vld1q_s16(dst + j), v_dst1 = vld1q_s16(dst + j + 8);
+            int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src)));
+            int16x8_t v_src1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src)));
+
+            int16x4_t v_srclo = vget_low_s16(v_src0), v_srchi = vget_high_s16(v_src0);
+            v_dst0 = vcombine_s16(vqmovn_s32(vaddw_s16(vmull_s16(v_srclo, v_srclo), vget_low_s16(v_dst0))),
+                                  vqmovn_s32(vaddw_s16(vmull_s16(v_srchi, v_srchi), vget_high_s16(v_dst0))));
+
+            v_srclo = vget_low_s16(v_src1);
+            v_srchi = vget_high_s16(v_src1);
+            v_dst1 = vcombine_s16(vqmovn_s32(vaddw_s16(vmull_s16(v_srclo, v_srclo), vget_low_s16(v_dst1))),
+                                  vqmovn_s32(vaddw_s16(vmull_s16(v_srchi, v_srchi), vget_high_s16(v_dst1))));
+
+            vst1q_s16(dst + j, v_dst0);
+            vst1q_s16(dst + j + 8, v_dst1);
+        }
+        for (; j < roiw8; j += 8)
+        {
+            int16x8_t v_src = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src + j)));
+            int16x8_t v_dst = vld1q_s16(dst + j);
+            int16x4_t v_srclo = vget_low_s16(v_src), v_srchi = vget_high_s16(v_src);
+            v_dst = vcombine_s16(vqmovn_s32(vaddw_s16(vmull_s16(v_srclo, v_srclo), vget_low_s16(v_dst))),
+                                 vqmovn_s32(vaddw_s16(vmull_s16(v_srchi, v_srchi), vget_high_s16(v_dst))));
+            vst1q_s16(dst + j, v_dst);
+        }
+
+        for (; j < size.width; j++)
+        {
+            s32 srcVal = src[j];
+            dst[j] = internal::saturate_cast<s16>(dst[j] + srcVal * srcVal);
+        }
+    }
+}
+
+typedef void (* accumulateSquareConstFunc)(const Size2D &size,
+                                           const u8 *srcBase, ptrdiff_t srcStride,
+                                           s16 *dstBase, ptrdiff_t dstStride);
+
+} // namespace
+
+#endif
+
+void accumulateSquare(const Size2D &size,
+                      const u8 *srcBase, ptrdiff_t srcStride,
+                      s16 *dstBase, ptrdiff_t dstStride,
+                      u32 shift)
+{
+    if (shift >= 16)
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            std::memset(dst, 0, sizeof(s16) * size.width);
+        }
+        return;
+    }
+
+    internal::assertSupportedConfiguration();
+
+#ifdef CAROTENE_NEON
+    // this ugly contruction is needed to avoid:
+    // /usr/lib/gcc/arm-linux-gnueabihf/4.8/include/arm_neon.h:3581:59: error: argument must be a constant
+    // return (int16x8_t)__builtin_neon_vshr_nv8hi (__a, __b, 1);
+
+    accumulateSquareConstFunc funcs[16] =
+    {
+        accumulateSquareConst<0>,
+        accumulateSquareConst<1>,
+        accumulateSquareConst<2>,
+        accumulateSquareConst<3>,
+        accumulateSquareConst<4>,
+        accumulateSquareConst<5>,
+        accumulateSquareConst<6>,
+        accumulateSquareConst<7>,
+        accumulateSquareConst<8>,
+        accumulateSquareConst<9>,
+        accumulateSquareConst<10>,
+        accumulateSquareConst<11>,
+        accumulateSquareConst<12>,
+        accumulateSquareConst<13>,
+        accumulateSquareConst<14>,
+        accumulateSquareConst<15>
+    }, func = funcs[shift];
+
+    func(size, srcBase, srcStride, dstBase, dstStride);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)shift;
+#endif
+}
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+struct AccumulateWeightedHalf
+{
+    typedef u8 type;
+
+    void operator() (const uint8x16_t & v_src0, const uint8x16_t & v_src1,
+                     uint8x16_t & v_dst) const
+    {
+        v_dst = vhaddq_u8(v_src0, v_src1);
+    }
+
+    void operator() (const uint8x8_t & v_src0, const uint8x8_t & v_src1,
+                     uint8x8_t & v_dst) const
+    {
+        v_dst = vhadd_u8(v_src0, v_src1);
+    }
+
+    void operator() (const u8 * src0, const u8 * src1, u8 * dst) const
+    {
+        dst[0] = ((u16)(src0[0]) + src1[0]) >> 1;
+    }
+};
+
+struct AccumulateWeighted
+{
+    typedef u8 type;
+
+    float alpha, beta;
+    float32x4_t v_alpha, v_beta;
+
+    explicit AccumulateWeighted(float _alpha) :
+        alpha(_alpha), beta(1 - _alpha)
+    {
+        v_alpha = vdupq_n_f32(alpha);
+        v_beta = vdupq_n_f32(beta);
+    }
+
+    void operator() (const uint8x16_t & v_src0, const uint8x16_t & v_src1,
+                     uint8x16_t & v_dst) const
+    {
+        uint16x8_t v_src0_p = vmovl_u8(vget_low_u8(v_src0));
+        uint16x8_t v_src1_p = vmovl_u8(vget_low_u8(v_src1));
+        float32x4_t v_dst0f = vmlaq_f32(vmulq_f32(vcvtq_f32_u32(vmovl_u16(vget_low_u16(v_src1_p))), v_beta),
+                                        v_alpha, vcvtq_f32_u32(vmovl_u16(vget_low_u16(v_src0_p))));
+        float32x4_t v_dst1f = vmlaq_f32(vmulq_f32(vcvtq_f32_u32(vmovl_u16(vget_high_u16(v_src1_p))), v_beta),
+                                        v_alpha, vcvtq_f32_u32(vmovl_u16(vget_high_u16(v_src0_p))));
+        uint16x8_t v_dst0 = vcombine_u16(vmovn_u32(vcvtq_u32_f32(v_dst0f)),
+                                         vmovn_u32(vcvtq_u32_f32(v_dst1f)));
+
+        v_src0_p = vmovl_u8(vget_high_u8(v_src0));
+        v_src1_p = vmovl_u8(vget_high_u8(v_src1));
+        v_dst0f = vmlaq_f32(vmulq_f32(vcvtq_f32_u32(vmovl_u16(vget_low_u16(v_src1_p))), v_beta),
+                            v_alpha, vcvtq_f32_u32(vmovl_u16(vget_low_u16(v_src0_p))));
+        v_dst1f = vmlaq_f32(vmulq_f32(vcvtq_f32_u32(vmovl_u16(vget_high_u16(v_src1_p))), v_beta),
+                            v_alpha, vcvtq_f32_u32(vmovl_u16(vget_high_u16(v_src0_p))));
+        uint16x8_t v_dst1 = vcombine_u16(vmovn_u32(vcvtq_u32_f32(v_dst0f)),
+                                         vmovn_u32(vcvtq_u32_f32(v_dst1f)));
+
+        v_dst = vcombine_u8(vmovn_u16(v_dst0), vmovn_u16(v_dst1));
+    }
+
+    void operator() (const uint8x8_t & _v_src0, const uint8x8_t & _v_src1,
+                     uint8x8_t & v_dst) const
+    {
+        uint16x8_t v_src0 = vmovl_u8(_v_src0), v_src1 = vmovl_u8(_v_src1);
+
+        float32x4_t v_dst0f = vmlaq_f32(vmulq_f32(vcvtq_f32_u32(vmovl_u16(vget_low_u16(v_src1))), v_beta),
+                                        v_alpha, vcvtq_f32_u32(vmovl_u16(vget_low_u16(v_src0))));
+        float32x4_t v_dst1f = vmlaq_f32(vmulq_f32(vcvtq_f32_u32(vmovl_u16(vget_high_u16(v_src1))), v_beta),
+                                        v_alpha, vcvtq_f32_u32(vmovl_u16(vget_high_u16(v_src0))));
+        uint16x8_t _v_dst = vcombine_u16(vmovn_u32(vcvtq_u32_f32(v_dst0f)),
+                                        vmovn_u32(vcvtq_u32_f32(v_dst1f)));
+
+        v_dst = vmovn_u16(_v_dst);
+    }
+
+    void operator() (const u8 * src0, const u8 * src1, u8 * dst) const
+    {
+        dst[0] = beta * src1[0] + alpha * src0[0];
+    }
+};
+
+} // namespace
+
+#endif
+
+void accumulateWeighted(const Size2D &size,
+                        const u8 *srcBase, ptrdiff_t srcStride,
+                        u8 *dstBase, ptrdiff_t dstStride,
+                        f32 alpha)
+{
+    if (alpha == 0.0f)
+        return;
+    if (alpha == 1.0f)
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+            u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            std::memcpy(dst, src, sizeof(u8) * size.width);
+        }
+        return;
+    }
+
+    internal::assertSupportedConfiguration();
+
+#ifdef CAROTENE_NEON
+    // in this case we can use the following scheme:
+    // dst[p] = (src[p] + dst[p]) >> 1
+    // which is faster
+    if (alpha == 0.5f)
+    {
+        internal::vtransform(size,
+                             srcBase, srcStride,
+                             dstBase, dstStride,
+                             dstBase, dstStride,
+                             AccumulateWeightedHalf());
+
+        return;
+    }
+
+    internal::vtransform(size,
+                     srcBase, srcStride,
+                     dstBase, dstStride,
+                     dstBase, dstStride,
+                     AccumulateWeighted(alpha));
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)alpha;
+#endif
+}
+
+} //namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/add.cpp

@@ -0,0 +1,475 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <typename T, typename WT>
+struct AddWrap
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vaddq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vadd(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = (T)((WT)src0[0] + (WT)src1[0]);
+    }
+};
+
+template <typename T, typename WT>
+struct AddSaturate
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vqaddq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vqadd(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = internal::saturate_cast<T>((WT)src0[0] + (WT)src1[0]);
+    }
+};
+
+} // namespace
+
+#endif
+
+void add(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         u8 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddSaturate<u8, u16>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddWrap<u8, u16>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const s8 * src0Base, ptrdiff_t src0Stride,
+         const s8 * src1Base, ptrdiff_t src1Stride,
+         s8 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddSaturate<s8, s16>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddWrap<s8, s16>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const u8 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        u16 * dst = internal::getRowPtr((u16 *)dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw32; j += 32)
+        {
+            internal::prefetch(src0 + j);
+            internal::prefetch(src1 + j);
+            uint8x16_t v_src00 = vld1q_u8(src0 + j), v_src01 = vld1q_u8(src0 + j + 16);
+            uint8x16_t v_src10 = vld1q_u8(src1 + j), v_src11 = vld1q_u8(src1 + j + 16);
+            vst1q_u16(dst + j, vaddl_u8(vget_low_u8(v_src00), vget_low_u8(v_src10)));
+            vst1q_u16(dst + j + 8, vaddl_u8(vget_high_u8(v_src00), vget_high_u8(v_src10)));
+            vst1q_u16(dst + j + 16, vaddl_u8(vget_low_u8(v_src01), vget_low_u8(v_src11)));
+            vst1q_u16(dst + j + 24, vaddl_u8(vget_high_u8(v_src01), vget_high_u8(v_src11)));
+        }
+        for (; j < roiw8; j += 8)
+        {
+            uint8x8_t v_src0 = vld1_u8(src0 + j);
+            uint8x8_t v_src1 = vld1_u8(src1 + j);
+            vst1q_u16(dst + j, vaddl_u8(v_src0, v_src1));
+        }
+
+        for (; j < size.width; j++)
+            dst[j] = (u16)src0[j] + (u16)src1[j];
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void add(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const s16 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const s16 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (policy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+                uint8x16_t v_src0 = vld1q_u8(src0 + j);
+                int16x8_t v_src00 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src0)));
+                int16x8_t v_src01 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src0)));
+                int16x8_t v_src10 = vld1q_s16(src1 + j), v_src11 = vld1q_s16(src1 + j + 8);
+                int16x8_t v_dst0 = vqaddq_s16(v_src00, v_src10);
+                int16x8_t v_dst1 = vqaddq_s16(v_src01, v_src11);
+                vst1q_s16(dst + j, v_dst0);
+                vst1q_s16(dst + j + 8, v_dst1);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src0 + j)));
+                int16x8_t v_src1 = vld1q_s16(src1 + j);
+                int16x8_t v_dst = vqaddq_s16(v_src0, v_src1);
+                vst1q_s16(dst + j, v_dst);
+            }
+
+            for (; j < size.width; j++)
+                dst[j] = internal::saturate_cast<s16>((s32)src0[j] + (s32)src1[j]);
+        }
+        else
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+                uint8x16_t v_src0 = vld1q_u8(src0 + j);
+                int16x8_t v_src00 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src0)));
+                int16x8_t v_src01 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src0)));
+                int16x8_t v_src10 = vld1q_s16(src1 + j), v_src11 = vld1q_s16(src1 + j + 8);
+                int16x8_t v_dst0 = vaddq_s16(v_src00, v_src10);
+                int16x8_t v_dst1 = vaddq_s16(v_src01, v_src11);
+                vst1q_s16(dst + j, v_dst0);
+                vst1q_s16(dst + j + 8, v_dst1);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src0 + j)));
+                int16x8_t v_src1 = vld1q_s16(src1 + j);
+                int16x8_t v_dst = vaddq_s16(v_src0, v_src1);
+                vst1q_s16(dst + j, v_dst);
+            }
+
+            for (; j < size.width; j++)
+                dst[j] = (s16)((s32)src0[j] + (s32)src1[j]);
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const s16 * src0Base, ptrdiff_t src0Stride,
+         const s16 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+        if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddSaturate<s16, s32>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddWrap<s16, s32>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const u16 * src0Base, ptrdiff_t src0Stride,
+         const u16 * src1Base, ptrdiff_t src1Stride,
+         u16 * dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+        if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddSaturate<u16, u32>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddWrap<u16, u32>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const s32 * src0Base, ptrdiff_t src0Stride,
+         const s32 * src1Base, ptrdiff_t src1Stride,
+         s32 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+        if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddSaturate<s32, s64>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddWrap<s32, s64>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const u32 * src0Base, ptrdiff_t src0Stride,
+         const u32 * src1Base, ptrdiff_t src1Stride,
+         u32 * dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+        if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddSaturate<u32, u64>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             AddWrap<u32, u64>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void add(const Size2D &size,
+         const f32 * src0Base, ptrdiff_t src0Stride,
+         const f32 * src1Base, ptrdiff_t src1Stride,
+         f32 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride,
+                         AddWrap<f32, f32>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/add_weighted.cpp

@@ -0,0 +1,265 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+using namespace internal;
+
+template <typename T> struct TypeTraits;
+template <> struct TypeTraits< u8> { typedef u16 wide;                     typedef  u8 unsign; typedef  uint8x16_t vec128; };
+template <> struct TypeTraits< s8> { typedef s16 wide;                     typedef  u8 unsign; typedef   int8x16_t vec128; };
+template <> struct TypeTraits<u16> { typedef u32 wide; typedef  u8 narrow; typedef u16 unsign; typedef  uint16x8_t vec128; };
+template <> struct TypeTraits<s16> { typedef s32 wide; typedef  s8 narrow; typedef u16 unsign; typedef   int16x8_t vec128; };
+template <> struct TypeTraits<u32> { typedef u64 wide; typedef u16 narrow; typedef u32 unsign; typedef  uint32x4_t vec128; };
+template <> struct TypeTraits<s32> { typedef s64 wide; typedef s16 narrow; typedef u32 unsign; typedef   int32x4_t vec128; };
+template <> struct TypeTraits<f32> { typedef f64 wide;                                         typedef float32x4_t vec128; };
+
+template <typename T> struct wAdd
+{
+    typedef T type;
+
+    f32 alpha, beta, gamma;
+    typedef typename TypeTraits<T>::wide wtype;
+    wAdd<wtype> wideAdd;
+    wAdd(f32 _alpha, f32 _beta, f32 _gamma):
+        alpha(_alpha), beta(_beta), gamma(_gamma),
+        wideAdd(_alpha, _beta, _gamma) {}
+
+    void operator() (const typename VecTraits<T>::vec128 & v_src0,
+                     const typename VecTraits<T>::vec128 & v_src1,
+                     typename VecTraits<T>::vec128 & v_dst) const
+    {
+        typename VecTraits<wtype>::vec128 vrl, vrh;
+        wideAdd(vmovl( vget_low(v_src0)), vmovl( vget_low(v_src1)), vrl);
+        wideAdd(vmovl(vget_high(v_src0)), vmovl(vget_high(v_src1)), vrh);
+
+        v_dst = vcombine(vqmovn(vrl), vqmovn(vrh));
+    }
+
+    void operator() (const typename VecTraits<T>::vec64 & v_src0,
+                     const typename VecTraits<T>::vec64 & v_src1,
+                     typename VecTraits<T>::vec64 & v_dst) const
+    {
+        typename VecTraits<wtype>::vec128 vr;
+        wideAdd(vmovl(v_src0), vmovl(v_src1), vr);
+
+        v_dst = vqmovn(vr);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = saturate_cast<T>(alpha*src0[0] + beta*src1[0] + gamma);
+    }
+};
+
+template <> struct wAdd<s32>
+{
+    typedef s32 type;
+
+    f32 alpha, beta, gamma;
+    float32x4_t valpha, vbeta, vgamma;
+    wAdd(f32 _alpha, f32 _beta, f32 _gamma):
+        alpha(_alpha), beta(_beta), gamma(_gamma)
+    {
+        valpha = vdupq_n_f32(_alpha);
+        vbeta = vdupq_n_f32(_beta);
+        vgamma = vdupq_n_f32(_gamma + 0.5);
+    }
+
+    void operator() (const typename VecTraits<s32>::vec128 & v_src0,
+                     const typename VecTraits<s32>::vec128 & v_src1,
+                     typename VecTraits<s32>::vec128 & v_dst) const
+    {
+        float32x4_t vs1 = vcvtq_f32_s32(v_src0);
+        float32x4_t vs2 = vcvtq_f32_s32(v_src1);
+
+        vs1 = vmlaq_f32(vgamma, vs1, valpha);
+        vs1 = vmlaq_f32(vs1, vs2, vbeta);
+        v_dst = vcvtq_s32_f32(vs1);
+    }
+
+    void operator() (const typename VecTraits<s32>::vec64 & v_src0,
+                     const typename VecTraits<s32>::vec64 & v_src1,
+                     typename VecTraits<s32>::vec64 & v_dst) const
+    {
+        float32x2_t vs1 = vcvt_f32_s32(v_src0);
+        float32x2_t vs2 = vcvt_f32_s32(v_src1);
+
+        vs1 = vmla_f32(vget_low(vgamma), vs1, vget_low(valpha));
+        vs1 = vmla_f32(vs1, vs2, vget_low(vbeta));
+        v_dst = vcvt_s32_f32(vs1);
+    }
+
+    void operator() (const s32 * src0, const s32 * src1, s32 * dst) const
+    {
+        dst[0] = saturate_cast<s32>(alpha*src0[0] + beta*src1[0] + gamma);
+    }
+};
+
+template <> struct wAdd<u32>
+{
+    typedef u32 type;
+
+    f32 alpha, beta, gamma;
+    float32x4_t valpha, vbeta, vgamma;
+    wAdd(f32 _alpha, f32 _beta, f32 _gamma):
+        alpha(_alpha), beta(_beta), gamma(_gamma)
+    {
+        valpha = vdupq_n_f32(_alpha);
+        vbeta = vdupq_n_f32(_beta);
+        vgamma = vdupq_n_f32(_gamma + 0.5);
+    }
+
+    void operator() (const typename VecTraits<u32>::vec128 & v_src0,
+                     const typename VecTraits<u32>::vec128 & v_src1,
+                     typename VecTraits<u32>::vec128 & v_dst) const
+    {
+        float32x4_t vs1 = vcvtq_f32_u32(v_src0);
+        float32x4_t vs2 = vcvtq_f32_u32(v_src1);
+
+        vs1 = vmlaq_f32(vgamma, vs1, valpha);
+        vs1 = vmlaq_f32(vs1, vs2, vbeta);
+        v_dst = vcvtq_u32_f32(vs1);
+    }
+
+    void operator() (const typename VecTraits<u32>::vec64 & v_src0,
+                     const typename VecTraits<u32>::vec64 & v_src1,
+                     typename VecTraits<u32>::vec64 & v_dst) const
+    {
+        float32x2_t vs1 = vcvt_f32_u32(v_src0);
+        float32x2_t vs2 = vcvt_f32_u32(v_src1);
+
+        vs1 = vmla_f32(vget_low(vgamma), vs1, vget_low(valpha));
+        vs1 = vmla_f32(vs1, vs2, vget_low(vbeta));
+        v_dst = vcvt_u32_f32(vs1);
+    }
+
+    void operator() (const u32 * src0, const u32 * src1, u32 * dst) const
+    {
+        dst[0] = saturate_cast<u32>(alpha*src0[0] + beta*src1[0] + gamma);
+    }
+};
+
+template <> struct wAdd<f32>
+{
+    typedef f32 type;
+
+    f32 alpha, beta, gamma;
+    float32x4_t valpha, vbeta, vgamma;
+    wAdd(f32 _alpha, f32 _beta, f32 _gamma):
+        alpha(_alpha), beta(_beta), gamma(_gamma)
+    {
+        valpha = vdupq_n_f32(_alpha);
+        vbeta = vdupq_n_f32(_beta);
+        vgamma = vdupq_n_f32(_gamma + 0.5);
+    }
+
+    void operator() (const typename VecTraits<f32>::vec128 & v_src0,
+                     const typename VecTraits<f32>::vec128 & v_src1,
+                     typename VecTraits<f32>::vec128 & v_dst) const
+    {
+        float32x4_t vs1 = vmlaq_f32(vgamma, v_src0, valpha);
+        v_dst = vmlaq_f32(vs1, v_src1, vbeta);
+    }
+
+    void operator() (const typename VecTraits<f32>::vec64 & v_src0,
+                     const typename VecTraits<f32>::vec64 & v_src1,
+                     typename VecTraits<f32>::vec64 & v_dst) const
+    {
+        float32x2_t vs1 = vmla_f32(vget_low(vgamma), v_src0, vget_low(valpha));
+        v_dst = vmla_f32(vs1, v_src1, vget_low(vbeta));
+
+    }
+
+    void operator() (const f32 * src0, const f32 * src1, f32 * dst) const
+    {
+        dst[0] = alpha*src0[0] + beta*src1[0] + gamma;
+    }
+};
+
+} // namespace
+
+#define IMPL_ADDWEIGHTED(type)                                \
+void addWeighted(const Size2D &size,                          \
+                 const type * src0Base, ptrdiff_t src0Stride, \
+                 const type * src1Base, ptrdiff_t src1Stride, \
+                 type * dstBase, ptrdiff_t dstStride,         \
+                 f32 alpha, f32 beta, f32 gamma)              \
+{                                                             \
+    internal::assertSupportedConfiguration();                 \
+    wAdd<type> wgtAdd(alpha,                                  \
+                      beta,                                   \
+                      gamma);                                 \
+    internal::vtransform(size,                                \
+                         src0Base, src0Stride,                \
+                         src1Base, src1Stride,                \
+                         dstBase, dstStride,                  \
+                         wgtAdd);                             \
+}
+
+#else
+
+#define IMPL_ADDWEIGHTED(type)                                \
+void addWeighted(const Size2D &,                              \
+                 const type *, ptrdiff_t,                     \
+                 const type *, ptrdiff_t,                     \
+                 type *, ptrdiff_t,                           \
+                 f32, f32, f32)                               \
+{                                                             \
+    internal::assertSupportedConfiguration();                 \
+}
+
+#endif
+
+IMPL_ADDWEIGHTED(u8)
+IMPL_ADDWEIGHTED(s8)
+IMPL_ADDWEIGHTED(u16)
+IMPL_ADDWEIGHTED(s16)
+IMPL_ADDWEIGHTED(u32)
+IMPL_ADDWEIGHTED(s32)
+IMPL_ADDWEIGHTED(f32)
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/bitwise.cpp

@@ -0,0 +1,225 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+struct BitwiseAnd
+{
+    typedef u8 type;
+
+    void operator() (const uint8x16_t & v_src0, const uint8x16_t & v_src1,
+                     uint8x16_t & v_dst) const
+    {
+        v_dst = vandq_u8(v_src0, v_src1);
+    }
+
+    void operator() (const uint8x8_t & v_src0, const uint8x8_t & v_src1,
+                     uint8x8_t & v_dst) const
+    {
+        v_dst = vand_u8(v_src0, v_src1);
+    }
+
+    void operator() (const u8 * src0, const u8 * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] & src1[0];
+    }
+};
+
+struct BitwiseOr
+{
+    typedef u8 type;
+
+    void operator() (const uint8x16_t & v_src0, const uint8x16_t & v_src1,
+                     uint8x16_t & v_dst) const
+    {
+        v_dst = vorrq_u8(v_src0, v_src1);
+    }
+
+    void operator() (const uint8x8_t & v_src0, const uint8x8_t & v_src1,
+                     uint8x8_t & v_dst) const
+    {
+        v_dst = vorr_u8(v_src0, v_src1);
+    }
+
+    void operator() (const u8 * src0, const u8 * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] | src1[0];
+    }
+};
+
+struct BitwiseXor
+{
+    typedef u8 type;
+
+    void operator() (const uint8x16_t & v_src0, const uint8x16_t & v_src1,
+                     uint8x16_t & v_dst) const
+    {
+        v_dst = veorq_u8(v_src0, v_src1);
+    }
+
+    void operator() (const uint8x8_t & v_src0, const uint8x8_t & v_src1,
+                     uint8x8_t & v_dst) const
+    {
+        v_dst = veor_u8(v_src0, v_src1);
+    }
+
+    void operator() (const u8 * src0, const u8 * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] ^ src1[0];
+    }
+};
+
+#endif
+
+void bitwiseNot(const Size2D &size,
+                const u8 *srcBase, ptrdiff_t srcStride,
+                u8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8* src = internal::getRowPtr(srcBase, srcStride, i);
+        u8* dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw32; j += 32)
+        {
+            internal::prefetch(src + j);
+            uint8x16_t v_src0 = vld1q_u8(src + j), v_src1 = vld1q_u8(src + j + 16);
+            uint8x16_t v_dst0 = vmvnq_u8(v_src0), v_dst1 = vmvnq_u8(v_src1);
+            vst1q_u8(dst + j, v_dst0);
+            vst1q_u8(dst + j + 16, v_dst1);
+        }
+        for (; j < roiw8; j += 8)
+        {
+            uint8x8_t v_src = vld1_u8(src + j);
+            uint8x8_t v_dst = vmvn_u8(v_src);
+            vst1_u8(dst + j, v_dst);
+        }
+
+        for (; j < size.width; j++)
+        {
+            dst[j] = ~src[j];
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void bitwiseAnd(const Size2D &size,
+                const u8 *src0Base, ptrdiff_t src0Stride,
+                const u8 *src1Base, ptrdiff_t src1Stride,
+                u8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, BitwiseAnd());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void bitwiseOr(const Size2D &size,
+               const u8 *src0Base, ptrdiff_t src0Stride,
+               const u8 *src1Base, ptrdiff_t src1Stride,
+               u8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, BitwiseOr());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void bitwiseXor(const Size2D &size,
+                const u8 *src0Base, ptrdiff_t src0Stride,
+                const u8 *src1Base, ptrdiff_t src1Stride,
+                u8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride, BitwiseXor());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/canny.cpp

@@ -0,0 +1,773 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include "saturate_cast.hpp"
+#include <vector>
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+namespace {
+struct RowFilter3x3Canny
+{
+    inline RowFilter3x3Canny(const ptrdiff_t borderxl, const ptrdiff_t borderxr)
+    {
+        vfmask = vreinterpret_u8_u64(vmov_n_u64(borderxl ? 0x0000FFffFFffFFffULL : 0x0100FFffFFffFFffULL));
+        vtmask = vreinterpret_u8_u64(vmov_n_u64(borderxr ? 0x0707060504030201ULL : 0x0706050403020100ULL));
+        lookLeft = offsetk - borderxl;
+        lookRight = offsetk - borderxr;
+    }
+
+    inline void operator()(const u8* src, s16* dstx, s16* dsty, ptrdiff_t width)
+    {
+        uint8x8_t l = vtbl1_u8(vld1_u8(src - lookLeft), vfmask);
+        ptrdiff_t i = 0;
+        for (; i < width - 8 + lookRight; i += 8)
+        {
+            internal::prefetch(src + i);
+            uint8x8_t l18u = vld1_u8(src + i + 1);
+
+            uint8x8_t l2 = l18u;
+            uint8x8_t l0 = vext_u8(l, l18u, 6);
+            int16x8_t l1x2 = vreinterpretq_s16_u16(vshll_n_u8(vext_u8(l, l18u, 7), 1));
+
+            l = l18u;
+
+            int16x8_t l02 = vreinterpretq_s16_u16(vaddl_u8(l2, l0));
+            int16x8_t ldx = vreinterpretq_s16_u16(vsubl_u8(l2, l0));
+            int16x8_t ldy = vaddq_s16(l02, l1x2);
+
+            vst1q_s16(dstx + i, ldx);
+            vst1q_s16(dsty + i, ldy);
+        }
+
+        //tail
+        if (lookRight == 0 || i != width)
+        {
+            uint8x8_t tail0 = vld1_u8(src + (width - 9));//can't get left 1 pixel another way if width==8*k+1
+            uint8x8_t tail2 = vtbl1_u8(vld1_u8(src + (width - 8 + lookRight)), vtmask);
+            uint8x8_t tail1 = vext_u8(vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(tail0), 8*6)), tail2, 7);
+
+            int16x8_t tail02 = vreinterpretq_s16_u16(vaddl_u8(tail2, tail0));
+            int16x8_t tail1x2 = vreinterpretq_s16_u16(vshll_n_u8(tail1, 1));
+            int16x8_t taildx = vreinterpretq_s16_u16(vsubl_u8(tail2, tail0));
+            int16x8_t taildy = vqaddq_s16(tail02, tail1x2);
+
+            vst1q_s16(dstx + (width - 8), taildx);
+            vst1q_s16(dsty + (width - 8), taildy);
+        }
+    }
+
+    uint8x8_t vfmask;
+    uint8x8_t vtmask;
+    enum { offsetk = 1};
+    ptrdiff_t lookLeft;
+    ptrdiff_t lookRight;
+};
+
+template <bool L2gradient>
+inline void ColFilter3x3Canny(const s16* src0, const s16* src1, const s16* src2, s16* dstx, s16* dsty, s32* mag, ptrdiff_t width)
+{
+    ptrdiff_t j = 0;
+    for (; j <= width - 8; j += 8)
+    {
+        ColFilter3x3CannyL1Loop:
+        int16x8_t line0x = vld1q_s16(src0 + j);
+        int16x8_t line1x = vld1q_s16(src1 + j);
+        int16x8_t line2x = vld1q_s16(src2 + j);
+        int16x8_t line0y = vld1q_s16(src0 + j + width);
+        int16x8_t line2y = vld1q_s16(src2 + j + width);
+
+        int16x8_t l02 = vaddq_s16(line0x, line2x);
+        int16x8_t l1x2 = vshlq_n_s16(line1x, 1);
+        int16x8_t dy = vsubq_s16(line2y, line0y);
+        int16x8_t dx = vaddq_s16(l1x2, l02);
+
+        int16x8_t dya = vabsq_s16(dy);
+        int16x8_t dxa = vabsq_s16(dx);
+        int16x8_t norm = vaddq_s16(dya, dxa);
+
+        int32x4_t normh = vmovl_s16(vget_high_s16(norm));
+        int32x4_t norml = vmovl_s16(vget_low_s16(norm));
+
+        vst1q_s16(dsty + j, dy);
+        vst1q_s16(dstx + j, dx);
+        vst1q_s32(mag + j + 4, normh);
+        vst1q_s32(mag + j, norml);
+    }
+    if (j != width)
+    {
+        j = width - 8;
+        goto ColFilter3x3CannyL1Loop;
+    }
+}
+template <>
+inline void ColFilter3x3Canny<true>(const s16* src0, const s16* src1, const s16* src2, s16* dstx, s16* dsty, s32* mag, ptrdiff_t width)
+{
+    ptrdiff_t j = 0;
+    for (; j <= width - 8; j += 8)
+    {
+        ColFilter3x3CannyL2Loop:
+        int16x8_t line0x = vld1q_s16(src0 + j);
+        int16x8_t line1x = vld1q_s16(src1 + j);
+        int16x8_t line2x = vld1q_s16(src2 + j);
+        int16x8_t line0y = vld1q_s16(src0 + j + width);
+        int16x8_t line2y = vld1q_s16(src2 + j + width);
+
+        int16x8_t l02 = vaddq_s16(line0x, line2x);
+        int16x8_t l1x2 = vshlq_n_s16(line1x, 1);
+        int16x8_t dy = vsubq_s16(line2y, line0y);
+        int16x8_t dx = vaddq_s16(l1x2, l02);
+
+        int32x4_t norml = vmull_s16(vget_low_s16(dx), vget_low_s16(dx));
+        int32x4_t normh = vmull_s16(vget_high_s16(dy), vget_high_s16(dy));
+
+        norml = vmlal_s16(norml, vget_low_s16(dy), vget_low_s16(dy));
+        normh = vmlal_s16(normh, vget_high_s16(dx), vget_high_s16(dx));
+
+        vst1q_s16(dsty + j, dy);
+        vst1q_s16(dstx + j, dx);
+        vst1q_s32(mag + j, norml);
+        vst1q_s32(mag + j + 4, normh);
+    }
+    if (j != width)
+    {
+        j = width - 8;
+        goto ColFilter3x3CannyL2Loop;
+    }
+}
+
+template <bool L2gradient>
+inline void NormCanny(const ptrdiff_t colscn, s16* _dx, s16* _dy, s32* _norm)
+{
+    ptrdiff_t j = 0;
+    if (colscn >= 8)
+    {
+        int16x8_t vx = vld1q_s16(_dx);
+        int16x8_t vy = vld1q_s16(_dy);
+        for (; j <= colscn - 16; j+=8)
+        {
+            internal::prefetch(_dx);
+            internal::prefetch(_dy);
+
+            int16x8_t vx2 = vld1q_s16(_dx + j + 8);
+            int16x8_t vy2 = vld1q_s16(_dy + j + 8);
+
+            int16x8_t vabsx = vabsq_s16(vx);
+            int16x8_t vabsy = vabsq_s16(vy);
+
+            int16x8_t norm = vaddq_s16(vabsx, vabsy);
+
+            int32x4_t normh = vmovl_s16(vget_high_s16(norm));
+            int32x4_t norml = vmovl_s16(vget_low_s16(norm));
+
+            vst1q_s32(_norm + j + 4, normh);
+            vst1q_s32(_norm + j + 0, norml);
+
+            vx = vx2;
+            vy = vy2;
+        }
+        int16x8_t vabsx = vabsq_s16(vx);
+        int16x8_t vabsy = vabsq_s16(vy);
+
+        int16x8_t norm = vaddq_s16(vabsx, vabsy);
+
+        int32x4_t normh = vmovl_s16(vget_high_s16(norm));
+        int32x4_t norml = vmovl_s16(vget_low_s16(norm));
+
+        vst1q_s32(_norm + j + 4, normh);
+        vst1q_s32(_norm + j + 0, norml);
+    }
+    for (; j < colscn; j++)
+        _norm[j] = std::abs(s32(_dx[j])) + std::abs(s32(_dy[j]));
+}
+
+template <>
+inline void NormCanny<true>(const ptrdiff_t colscn, s16* _dx, s16* _dy, s32* _norm)
+{
+    ptrdiff_t j = 0;
+    if (colscn >= 8)
+    {
+        int16x8_t vx = vld1q_s16(_dx);
+        int16x8_t vy = vld1q_s16(_dy);
+
+        for (; j <= colscn - 16; j+=8)
+        {
+            internal::prefetch(_dx);
+            internal::prefetch(_dy);
+
+            int16x8_t vxnext = vld1q_s16(_dx + j + 8);
+            int16x8_t vynext = vld1q_s16(_dy + j + 8);
+
+            int32x4_t norml = vmull_s16(vget_low_s16(vx), vget_low_s16(vx));
+            int32x4_t normh = vmull_s16(vget_high_s16(vy), vget_high_s16(vy));
+
+            norml = vmlal_s16(norml, vget_low_s16(vy), vget_low_s16(vy));
+            normh = vmlal_s16(normh, vget_high_s16(vx), vget_high_s16(vx));
+
+            vst1q_s32(_norm + j + 0, norml);
+            vst1q_s32(_norm + j + 4, normh);
+
+            vx = vxnext;
+            vy = vynext;
+        }
+        int32x4_t norml = vmull_s16(vget_low_s16(vx), vget_low_s16(vx));
+        int32x4_t normh = vmull_s16(vget_high_s16(vy), vget_high_s16(vy));
+
+        norml = vmlal_s16(norml, vget_low_s16(vy), vget_low_s16(vy));
+        normh = vmlal_s16(normh, vget_high_s16(vx), vget_high_s16(vx));
+
+        vst1q_s32(_norm + j + 0, norml);
+        vst1q_s32(_norm + j + 4, normh);
+    }
+    for (; j < colscn; j++)
+        _norm[j] = s32(_dx[j])*_dx[j] + s32(_dy[j])*_dy[j];
+}
+
+template <bool L2gradient>
+inline void prepareThresh(f64 low_thresh, f64 high_thresh,
+                          s32 &low, s32 &high)
+{
+    if (low_thresh > high_thresh)
+        std::swap(low_thresh, high_thresh);
+#if defined __GNUC__
+    low = (s32)low_thresh;
+    high = (s32)high_thresh;
+    low -= (low > low_thresh);
+    high -= (high > high_thresh);
+#else
+    low = internal::round(low_thresh);
+    high = internal::round(high_thresh);
+    f32 ldiff = (f32)(low_thresh - low);
+    f32 hdiff = (f32)(high_thresh - high);
+    low -= (ldiff < 0);
+    high -= (hdiff < 0);
+#endif
+}
+template <>
+inline void prepareThresh<true>(f64 low_thresh, f64 high_thresh,
+                                s32 &low, s32 &high)
+{
+    if (low_thresh > high_thresh)
+        std::swap(low_thresh, high_thresh);
+    if (low_thresh > 0) low_thresh *= low_thresh;
+    if (high_thresh > 0) high_thresh *= high_thresh;
+#if defined __GNUC__
+    low = (s32)low_thresh;
+    high = (s32)high_thresh;
+    low -= (low > low_thresh);
+    high -= (high > high_thresh);
+#else
+    low = internal::round(low_thresh);
+    high = internal::round(high_thresh);
+    f32 ldiff = (f32)(low_thresh - low);
+    f32 hdiff = (f32)(high_thresh - high);
+    low -= (ldiff < 0);
+    high -= (hdiff < 0);
+#endif
+}
+
+template <bool L2gradient, bool externalSobel>
+struct _normEstimator
+{
+    ptrdiff_t magstep;
+    ptrdiff_t dxOffset;
+    ptrdiff_t dyOffset;
+    ptrdiff_t shxOffset;
+    ptrdiff_t shyOffset;
+    std::vector<u8> buffer;
+    const ptrdiff_t offsetk;
+    ptrdiff_t borderyt, borderyb;
+    RowFilter3x3Canny sobelRow;
+
+    inline _normEstimator(const Size2D &size, s32, Margin borderMargin,
+                          ptrdiff_t &mapstep, s32** mag_buf, u8* &map):
+                          offsetk(1),
+                          sobelRow(std::max<ptrdiff_t>(0, offsetk - (ptrdiff_t)borderMargin.left),
+                                   std::max<ptrdiff_t>(0, offsetk - (ptrdiff_t)borderMargin.right))
+    {
+        mapstep = size.width + 2;
+        magstep = size.width + 2 + size.width * (4 * sizeof(s16)/sizeof(s32));
+        dxOffset = mapstep * sizeof(s32)/sizeof(s16);
+        dyOffset = dxOffset + size.width * 1;
+        shxOffset = dxOffset + size.width * 2;
+        shyOffset = dxOffset + size.width * 3;
+        buffer.resize( (size.width+2)*(size.height+2) + magstep*3*sizeof(s32) );
+        mag_buf[0] = (s32*)&buffer[0];
+        mag_buf[1] = mag_buf[0] + magstep;
+        mag_buf[2] = mag_buf[1] + magstep;
+        memset(mag_buf[0], 0, mapstep * sizeof(s32));
+
+        map = (u8*)(mag_buf[2] + magstep);
+        memset(map, 1, mapstep);
+        memset(map + mapstep*(size.height + 1), 1, mapstep);
+        borderyt = std::max<ptrdiff_t>(0, offsetk - (ptrdiff_t)borderMargin.top);
+        borderyb = std::max<ptrdiff_t>(0, offsetk - (ptrdiff_t)borderMargin.bottom);
+    }
+    inline void firstRow(const Size2D &size, s32,
+                         const u8 *srcBase, ptrdiff_t srcStride,
+                         s16*, ptrdiff_t,
+                         s16*, ptrdiff_t,
+                         s32** mag_buf)
+    {
+        //sobelH row #0
+        const u8* _src = internal::getRowPtr(srcBase, srcStride, 0);
+        sobelRow(_src, ((s16*)mag_buf[0]) + shxOffset, ((s16*)mag_buf[0]) + shyOffset, size.width);
+        //sobelH row #1
+        _src = internal::getRowPtr(srcBase, srcStride, 1);
+        sobelRow(_src, ((s16*)mag_buf[1]) + shxOffset, ((s16*)mag_buf[1]) + shyOffset, size.width);
+
+        mag_buf[1][0] = mag_buf[1][size.width+1] = 0;
+        if (borderyt == 0)
+        {
+            //sobelH row #-1
+            _src = internal::getRowPtr(srcBase, srcStride, -1);
+            sobelRow(_src, ((s16*)mag_buf[2]) + shxOffset, ((s16*)mag_buf[2]) + shyOffset, size.width);
+
+            ColFilter3x3Canny<L2gradient>( ((s16*)mag_buf[2]) + shxOffset, ((s16*)mag_buf[0]) + shxOffset, ((s16*)mag_buf[1]) + shxOffset,
+                                           ((s16*)mag_buf[1]) + dxOffset,  ((s16*)mag_buf[1]) + dyOffset, mag_buf[1] + 1, size.width);
+        }
+        else
+        {
+            ColFilter3x3Canny<L2gradient>( ((s16*)mag_buf[0]) + shxOffset, ((s16*)mag_buf[0]) + shxOffset, ((s16*)mag_buf[1]) + shxOffset,
+                                           ((s16*)mag_buf[1]) + dxOffset,  ((s16*)mag_buf[1]) + dyOffset, mag_buf[1] + 1, size.width);
+        }
+    }
+    inline void nextRow(const Size2D &size, s32,
+                        const u8 *srcBase, ptrdiff_t srcStride,
+                        s16*, ptrdiff_t,
+                        s16*, ptrdiff_t,
+                        const ptrdiff_t &mapstep, s32** mag_buf,
+                        size_t i, const s16* &_x, const s16* &_y)
+    {
+        mag_buf[2][0] = mag_buf[2][size.width+1] = 0;
+        if (i < size.height - borderyb)
+        {
+            const u8* _src = internal::getRowPtr(srcBase, srcStride, i+1);
+            //sobelH row #i+1
+            sobelRow(_src, ((s16*)mag_buf[2]) + shxOffset, ((s16*)mag_buf[2]) + shyOffset, size.width);
+
+            ColFilter3x3Canny<L2gradient>( ((s16*)mag_buf[0]) + shxOffset, ((s16*)mag_buf[1]) + shxOffset, ((s16*)mag_buf[2]) + shxOffset,
+                                           ((s16*)mag_buf[2]) + dxOffset,  ((s16*)mag_buf[2]) + dyOffset, mag_buf[2] + 1, size.width);
+        }
+        else if (i < size.height)
+        {
+            ColFilter3x3Canny<L2gradient>( ((s16*)mag_buf[0]) + shxOffset, ((s16*)mag_buf[1]) + shxOffset, ((s16*)mag_buf[1]) + shxOffset,
+                                           ((s16*)mag_buf[2]) + dxOffset,  ((s16*)mag_buf[2]) + dyOffset, mag_buf[2] + 1, size.width);
+        }
+        else
+            memset(mag_buf[2], 0, mapstep*sizeof(s32));
+        _x = ((s16*)mag_buf[1]) + dxOffset;
+        _y = ((s16*)mag_buf[1]) + dyOffset;
+    }
+};
+template <bool L2gradient>
+struct _normEstimator<L2gradient, true>
+{
+    std::vector<u8> buffer;
+
+    inline _normEstimator(const Size2D &size, s32 cn, Margin,
+                          ptrdiff_t &mapstep, s32** mag_buf, u8* &map)
+    {
+        mapstep = size.width + 2;
+        buffer.resize( (size.width+2)*(size.height+2) + cn*mapstep*3*sizeof(s32) );
+        mag_buf[0] = (s32*)&buffer[0];
+        mag_buf[1] = mag_buf[0] + mapstep*cn;
+        mag_buf[2] = mag_buf[1] + mapstep*cn;
+        memset(mag_buf[0], 0, /* cn* */mapstep * sizeof(s32));
+
+        map = (u8*)(mag_buf[2] + mapstep*cn);
+        memset(map, 1, mapstep);
+        memset(map + mapstep*(size.height + 1), 1, mapstep);
+    }
+    inline void firstRow(const Size2D &size, s32 cn,
+                         const u8 *, ptrdiff_t,
+                         s16* dxBase, ptrdiff_t dxStride,
+                         s16* dyBase, ptrdiff_t dyStride,
+                         s32** mag_buf)
+    {
+        s32* _norm = mag_buf[1] + 1;
+
+        s16* _dx = internal::getRowPtr(dxBase, dxStride, 0);
+        s16* _dy = internal::getRowPtr(dyBase, dyStride, 0);
+
+        NormCanny<L2gradient>(size.width*cn, _dx, _dy, _norm);
+
+        if(cn > 1)
+        {
+            for(size_t j = 0, jn = 0; j < size.width; ++j, jn += cn)
+            {
+                size_t maxIdx = jn;
+                for(s32 k = 1; k < cn; ++k)
+                    if(_norm[jn + k] > _norm[maxIdx]) maxIdx = jn + k;
+                _norm[j] = _norm[maxIdx];
+                _dx[j] = _dx[maxIdx];
+                _dy[j] = _dy[maxIdx];
+            }
+        }
+
+        _norm[-1] = _norm[size.width] = 0;
+    }
+    inline void nextRow(const Size2D &size, s32 cn,
+                        const u8 *, ptrdiff_t,
+                        s16* dxBase, ptrdiff_t dxStride,
+                        s16* dyBase, ptrdiff_t dyStride,
+                        const ptrdiff_t &mapstep, s32** mag_buf,
+                        size_t i, const s16* &_x, const s16* &_y)
+    {
+        s32* _norm = mag_buf[(i > 0) + 1] + 1;
+        if (i < size.height)
+        {
+            s16* _dx = internal::getRowPtr(dxBase, dxStride, i);
+            s16* _dy = internal::getRowPtr(dyBase, dyStride, i);
+
+            NormCanny<L2gradient>(size.width*cn, _dx, _dy, _norm);
+
+            if(cn > 1)
+            {
+                for(size_t j = 0, jn = 0; j < size.width; ++j, jn += cn)
+                {
+                    size_t maxIdx = jn;
+                    for(s32 k = 1; k < cn; ++k)
+                        if(_norm[jn + k] > _norm[maxIdx]) maxIdx = jn + k;
+                    _norm[j] = _norm[maxIdx];
+                    _dx[j] = _dx[maxIdx];
+                    _dy[j] = _dy[maxIdx];
+                }
+            }
+
+            _norm[-1] = _norm[size.width] = 0;
+        }
+        else
+            memset(_norm-1, 0, /* cn* */mapstep*sizeof(s32));
+
+        _x = internal::getRowPtr(dxBase, dxStride, i-1);
+        _y = internal::getRowPtr(dyBase, dyStride, i-1);
+    }
+};
+
+template <bool L2gradient, bool externalSobel>
+inline void Canny3x3(const Size2D &size, s32 cn,
+                     const u8 * srcBase, ptrdiff_t srcStride,
+                     u8 * dstBase, ptrdiff_t dstStride,
+                     s16 * dxBase, ptrdiff_t dxStride,
+                     s16 * dyBase, ptrdiff_t dyStride,
+                     f64 low_thresh, f64 high_thresh,
+                     Margin borderMargin)
+{
+    s32 low, high;
+    prepareThresh<L2gradient>(low_thresh, high_thresh, low, high);
+
+    ptrdiff_t mapstep;
+    s32* mag_buf[3];
+    u8* map;
+    _normEstimator<L2gradient, externalSobel> normEstimator(size, cn, borderMargin, mapstep, mag_buf, map);
+
+    size_t maxsize = std::max<size_t>( 1u << 10, size.width * size.height / 10 );
+    std::vector<u8*> stack( maxsize );
+    u8 **stack_top = &stack[0];
+    u8 **stack_bottom = &stack[0];
+
+    /* sector numbers
+       (Top-Left Origin)
+
+        1   2   3
+         *  *  *
+          * * *
+        0*******0
+          * * *
+         *  *  *
+        3   2   1
+    */
+
+    #define CANNY_PUSH(d)    *(d) = u8(2), *stack_top++ = (d)
+    #define CANNY_POP(d)     (d) = *--stack_top
+
+    //i == 0
+    normEstimator.firstRow(size, cn, srcBase, srcStride, dxBase, dxStride, dyBase, dyStride, mag_buf);
+    // calculate magnitude and angle of gradient, perform non-maxima supression.
+    // fill the map with one of the following values:
+    //   0 - the pixel might belong to an edge
+    //   1 - the pixel can not belong to an edge
+    //   2 - the pixel does belong to an edge
+    for (size_t i = 1; i <= size.height; i++)
+    {
+        const s16 *_x, *_y;
+        normEstimator.nextRow(size, cn, srcBase, srcStride, dxBase, dxStride, dyBase, dyStride, mapstep, mag_buf, i, _x, _y);
+
+        u8* _map = map + mapstep*i + 1;
+        _map[-1] = _map[size.width] = 1;
+
+        s32* _mag = mag_buf[1] + 1; // take the central row
+        ptrdiff_t magstep1 = mag_buf[2] - mag_buf[1];
+        ptrdiff_t magstep2 = mag_buf[0] - mag_buf[1];
+
+        if ((stack_top - stack_bottom) + size.width > maxsize)
+        {
+            ptrdiff_t sz = (ptrdiff_t)(stack_top - stack_bottom);
+            maxsize = maxsize * 3/2;
+            stack.resize(maxsize);
+            stack_bottom = &stack[0];
+            stack_top = stack_bottom + sz;
+        }
+
+        s32 prev_flag = 0;
+        for (ptrdiff_t j = 0; j < (ptrdiff_t)size.width; j++)
+        {
+            #define CANNY_SHIFT 15
+            const s32 TG22 = (s32)(0.4142135623730950488016887242097*(1<<CANNY_SHIFT) + 0.5);
+
+            s32 m = _mag[j];
+
+            if (m > low)
+            {
+                s32 xs = _x[j];
+                s32 ys = _y[j];
+                s32 x = abs(xs);
+                s32 y = abs(ys) << CANNY_SHIFT;
+
+                s32 tg22x = x * TG22;
+
+                if (y < tg22x)
+                {
+                    if (m > _mag[j-1] && m >= _mag[j+1]) goto __push;
+                }
+                else
+                {
+                    s32 tg67x = tg22x + (x << (CANNY_SHIFT+1));
+                    if (y > tg67x)
+                    {
+                        if (m > _mag[j+magstep2] && m >= _mag[j+magstep1]) goto __push;
+                    }
+                    else
+                    {
+                        s32 s = (xs ^ ys) < 0 ? -1 : 1;
+                        if(m > _mag[j+magstep2-s] && m > _mag[j+magstep1+s]) goto __push;
+                    }
+                }
+            }
+            prev_flag = 0;
+            _map[j] = u8(1);
+            continue;
+            __push:
+            if (!prev_flag && m > high && _map[j-mapstep] != 2)
+            {
+                CANNY_PUSH(_map + j);
+                prev_flag = 1;
+            }
+            else
+                _map[j] = 0;
+        }
+
+        // scroll the ring buffer
+        _mag = mag_buf[0];
+        mag_buf[0] = mag_buf[1];
+        mag_buf[1] = mag_buf[2];
+        mag_buf[2] = _mag;
+    }
+
+    // now track the edges (hysteresis thresholding)
+    while (stack_top > stack_bottom)
+    {
+        u8* m;
+        if ((size_t)(stack_top - stack_bottom) + 8u > maxsize)
+        {
+            ptrdiff_t sz = (ptrdiff_t)(stack_top - stack_bottom);
+            maxsize = maxsize * 3/2;
+            stack.resize(maxsize);
+            stack_bottom = &stack[0];
+            stack_top = stack_bottom + sz;
+        }
+
+        CANNY_POP(m);
+
+        if (!m[-1])         CANNY_PUSH(m - 1);
+        if (!m[1])          CANNY_PUSH(m + 1);
+        if (!m[-mapstep-1]) CANNY_PUSH(m - mapstep - 1);
+        if (!m[-mapstep])   CANNY_PUSH(m - mapstep);
+        if (!m[-mapstep+1]) CANNY_PUSH(m - mapstep + 1);
+        if (!m[mapstep-1])  CANNY_PUSH(m + mapstep - 1);
+        if (!m[mapstep])    CANNY_PUSH(m + mapstep);
+        if (!m[mapstep+1])  CANNY_PUSH(m + mapstep + 1);
+    }
+
+    // the final pass, form the final image
+    uint8x16_t v2 = vmovq_n_u8(2);
+    const u8* ptrmap = map + mapstep + 1;
+    for (size_t i = 0; i < size.height; i++, ptrmap += mapstep)
+    {
+        u8* _dst = internal::getRowPtr(dstBase, dstStride, i);
+        ptrdiff_t j = 0;
+        for (; j < (ptrdiff_t)size.width - 16; j += 16)
+        {
+            internal::prefetch(ptrmap);
+            uint8x16_t vmap = vld1q_u8(ptrmap + j);
+            uint8x16_t vdst = vceqq_u8(vmap, v2);
+            vst1q_u8(_dst+j, vdst);
+        }
+        for (; j < (ptrdiff_t)size.width; j++)
+            _dst[j] = (u8)-(ptrmap[j] >> 1);
+    }
+}
+
+} // namespace
+#endif
+
+bool isCanny3x3Supported(const Size2D &size)
+{
+    return isSupportedConfiguration() &&
+           size.height >= 2 && size.width >= 9;
+}
+
+void Canny3x3L1(const Size2D &size,
+                const u8 * srcBase, ptrdiff_t srcStride,
+                u8 * dstBase, ptrdiff_t dstStride,
+                f64 low_thresh, f64 high_thresh,
+                Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(isCanny3x3Supported(size));
+#ifdef CAROTENE_NEON
+    Canny3x3<false, false>(size, 1,
+                           srcBase, srcStride,
+                           dstBase, dstStride,
+                           NULL, 0,
+                           NULL, 0,
+                           low_thresh, high_thresh,
+                           borderMargin);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)low_thresh;
+    (void)high_thresh;
+    (void)borderMargin;
+#endif
+}
+
+void Canny3x3L2(const Size2D &size,
+                const u8 * srcBase, ptrdiff_t srcStride,
+                u8 * dstBase, ptrdiff_t dstStride,
+                f64 low_thresh, f64 high_thresh,
+                Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(isCanny3x3Supported(size));
+#ifdef CAROTENE_NEON
+    Canny3x3<true, false>(size, 1,
+                          srcBase, srcStride,
+                          dstBase, dstStride,
+                          NULL, 0,
+                          NULL, 0,
+                          low_thresh, high_thresh,
+                          borderMargin);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)low_thresh;
+    (void)high_thresh;
+    (void)borderMargin;
+#endif
+}
+
+void Canny3x3L1(const Size2D &size, s32 cn,
+                     s16 * dxBase, ptrdiff_t dxStride,
+                     s16 * dyBase, ptrdiff_t dyStride,
+                     u8 * dstBase, ptrdiff_t dstStride,
+                     f64 low_thresh, f64 high_thresh)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Canny3x3<false, true>(size, cn,
+                          NULL, 0,
+                          dstBase, dstStride,
+                          dxBase, dxStride,
+                          dyBase, dyStride,
+                          low_thresh, high_thresh,
+                          Margin());
+#else
+    (void)size;
+    (void)cn;
+    (void)dstBase;
+    (void)dstStride;
+    (void)dxBase;
+    (void)dxStride;
+    (void)dyBase;
+    (void)dyStride;
+    (void)low_thresh;
+    (void)high_thresh;
+#endif
+}
+
+void Canny3x3L2(const Size2D &size, s32 cn,
+                     s16 * dxBase, ptrdiff_t dxStride,
+                     s16 * dyBase, ptrdiff_t dyStride,
+                     u8 * dstBase, ptrdiff_t dstStride,
+                     f64 low_thresh, f64 high_thresh)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Canny3x3<true, true>(size, cn,
+                         NULL, 0,
+                         dstBase, dstStride,
+                         dxBase, dxStride,
+                         dyBase, dyStride,
+                         low_thresh, high_thresh,
+                         Margin());
+#else
+    (void)size;
+    (void)cn;
+    (void)dstBase;
+    (void)dstStride;
+    (void)dxBase;
+    (void)dxStride;
+    (void)dyBase;
+    (void)dyStride;
+    (void)low_thresh;
+    (void)high_thresh;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/channel_extract.cpp

@@ -0,0 +1,486 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+void extract2(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              u8 * dstBase, ptrdiff_t dstStride,
+              u32 coi)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+#ifndef __ANDROID__
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+#endif
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0u; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t sj = 0u, dj = 0u;
+
+#ifndef __ANDROID__
+        for (; dj < roiw32; sj += 64, dj += 32)
+        {
+            internal::prefetch(src + sj);
+
+            uint8x16x2_t v_src = vld2q_u8(src + sj);
+            vst1q_u8(dst + dj, v_src.val[coi]);
+
+            v_src = vld2q_u8(src + sj + 32);
+            vst1q_u8(dst + dj + 16, v_src.val[coi]);
+        }
+#endif
+
+        for (; dj < roiw8; sj += 16, dj += 8)
+        {
+            uint8x8x2_t v_src = vld2_u8(src + sj);
+            vst1_u8(dst + dj, v_src.val[coi]);
+        }
+
+        for (; dj < size.width; sj += 2, ++dj)
+        {
+            dst[dj] = src[sj + coi];
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)coi;
+#endif
+}
+
+void extract3(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              u8 * dstBase, ptrdiff_t dstStride,
+              u32 coi)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+#ifndef __ANDROID__
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+#endif
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0u; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t sj = 0u, dj = 0u;
+
+#ifndef __ANDROID__
+        for (; dj < roiw32; sj += 96, dj += 32)
+        {
+            internal::prefetch(src + sj);
+
+            uint8x16x3_t v_src = vld3q_u8(src + sj);
+            vst1q_u8(dst + dj, v_src.val[coi]);
+
+            v_src = vld3q_u8(src + sj + 48);
+            vst1q_u8(dst + dj + 16, v_src.val[coi]);
+        }
+#endif
+
+        for (; dj < roiw8; sj += 24, dj += 8)
+        {
+            uint8x8x3_t v_src = vld3_u8(src + sj);
+            vst1_u8(dst + dj, v_src.val[coi]);
+        }
+
+        for (; dj < size.width; sj += 3, ++dj)
+        {
+            dst[dj] = src[sj + coi];
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)coi;
+#endif
+}
+
+void extract4(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              u8 * dstBase, ptrdiff_t dstStride,
+              u32 coi)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+#ifndef __ANDROID__
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+#endif
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0u; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t sj = 0u, dj = 0u;
+
+#ifndef __ANDROID__
+        for (; dj < roiw32; sj += 128, dj += 32)
+        {
+            internal::prefetch(src + sj);
+
+            uint8x16x4_t v_src = vld4q_u8(src + sj);
+            vst1q_u8(dst + dj, v_src.val[coi]);
+
+            v_src = vld4q_u8(src + sj + 64);
+            vst1q_u8(dst + dj + 16, v_src.val[coi]);
+        }
+#endif
+
+        for (; dj < roiw8; sj += 32, dj += 8)
+        {
+            uint8x8x4_t v_src = vld4_u8(src + sj);
+            vst1_u8(dst + dj, v_src.val[coi]);
+        }
+
+        for (; dj < size.width; sj += 4, ++dj)
+        {
+            dst[dj] = src[sj + coi];
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)coi;
+#endif
+}
+
+#define FILL_LINES2(macro,type) \
+            macro##_LINE(type,0) \
+            macro##_LINE(type,1)
+#define FILL_LINES3(macro,type) \
+            FILL_LINES2(macro,type) \
+            macro##_LINE(type,2)
+#define FILL_LINES4(macro,type) \
+            FILL_LINES3(macro,type) \
+            macro##_LINE(type,3)
+
+#define FARG_LINE(type, n) , type * dst##n##Base, ptrdiff_t dst##n##Stride
+
+#ifdef CAROTENE_NEON
+
+#define VROW_LINE(type, n) type * dst##n = internal::getRowPtr(dst##n##Base, dst##n##Stride, i);
+#define VST1Q_LINE(type, n) vst1q_##type(dst##n + dj, v_src.val[n]);
+#define VST1_LINE(type, n) vst1_##type(dst##n + dj, v_src.val[n]);
+#define SST_LINE(type, n) dst##n[dj] = src[sj + n];
+
+#define MUL2(val) (val << 1)
+#define MUL3(val) (MUL2(val) + val)
+#define MUL4(val) (val << 2)
+
+#define CONTDST2 srcStride == dst0Stride && \
+                 srcStride == dst1Stride &&
+#define CONTDST3 srcStride == dst0Stride && \
+                 srcStride == dst1Stride && \
+                 srcStride == dst2Stride &&
+#define CONTDST4 srcStride == dst0Stride && \
+                 srcStride == dst1Stride && \
+                 srcStride == dst2Stride && \
+                 srcStride == dst3Stride &&
+
+#if !defined(__aarch64__) && defined(__GNUC__) && __GNUC__ == 4 &&  __GNUC_MINOR__ < 7 && !defined(__clang__)
+
+#define SPLIT_ASM2(sgn, bits) __asm__ ( \
+                                          "vld2." #bits " {d0, d2}, [%[in0]]            \n\t" \
+                                          "vld2." #bits " {d1, d3}, [%[in1]]            \n\t" \
+                                          "vst1." #bits " {d0-d1}, [%[out0]]            \n\t" \
+                                          "vst1." #bits " {d2-d3}, [%[out1]]            \n\t" \
+                                          : \
+                                          : [out0] "r" (dst0 + dj), [out1] "r" (dst1 + dj), \
+                                            [in0]  "r" (src + sj), [in1]  "r" (src + sj + MUL2(8)/sizeof(sgn##bits)) \
+                                          : "d0","d1","d2","d3" \
+                                      );
+#define SPLIT_ASM3(sgn, bits) __asm__ ( \
+                                          "vld3." #bits " {d0, d2, d4}, [%[in0]]        \n\t" \
+                                          "vld3." #bits " {d1, d3, d5}, [%[in1]]        \n\t" \
+                                          "vst1." #bits " {d0-d1}, [%[out0]]            \n\t" \
+                                          "vst1." #bits " {d2-d3}, [%[out1]]            \n\t" \
+                                          "vst1." #bits " {d4-d5}, [%[out2]]            \n\t" \
+                                          : \
+                                          : [out0] "r" (dst0 + dj), [out1] "r" (dst1 + dj), [out2] "r" (dst2 + dj), \
+                                            [in0]  "r" (src + sj), [in1]  "r" (src + sj + MUL3(8)/sizeof(sgn##bits)) \
+                                          : "d0","d1","d2","d3","d4","d5" \
+                                      );
+#define SPLIT_ASM4(sgn, bits) __asm__ ( \
+                                          "vld4." #bits " {d0, d2, d4, d6}, [%[in0]]    \n\t" \
+                                          "vld4." #bits " {d1, d3, d5, d7}, [%[in1]]    \n\t" \
+                                          "vst1." #bits " {d0-d1}, [%[out0]]            \n\t" \
+                                          "vst1." #bits " {d2-d3}, [%[out1]]            \n\t" \
+                                          "vst1." #bits " {d4-d5}, [%[out2]]            \n\t" \
+                                          "vst1." #bits " {d6-d7}, [%[out3]]            \n\t" \
+                                          : \
+                                          : [out0] "r" (dst0 + dj), [out1] "r" (dst1 + dj), [out2] "r" (dst2 + dj), [out3] "r" (dst3 + dj), \
+                                            [in0]  "r" (src + sj), [in1]  "r" (src + sj + MUL4(8)/sizeof(sgn##bits)) \
+                                          : "d0","d1","d2","d3","d4","d5","d6","d7" \
+                                      );
+
+#define SPLIT_QUAD(sgn, bits, n) { \
+                                     internal::prefetch(src + sj); \
+                                     SPLIT_ASM##n(sgn, bits) \
+                                 }
+
+#else
+
+#define SPLIT_QUAD(sgn, bits, n) { \
+                                     internal::prefetch(src + sj); \
+                                     vec128 v_src = vld##n##q_##sgn##bits(src + sj); \
+                                     FILL_LINES##n(VST1Q, sgn##bits) \
+                                 }
+
+#endif
+
+#define SPLIT(sgn,bits,n) void split##n(const Size2D &_size,                                            \
+                                    const sgn##bits * srcBase, ptrdiff_t srcStride                      \
+                                    FILL_LINES##n(FARG, sgn##bits) )                                    \
+{                                                                                                       \
+    internal::assertSupportedConfiguration();                                                           \
+    Size2D size(_size);                                                                                 \
+    if (CONTDST##n                                                                                      \
+        dst0Stride == (ptrdiff_t)(size.width))                                                          \
+    {                                                                                                   \
+        size.width *= size.height;                                                                      \
+        size.height = 1;                                                                                \
+    }                                                                                                   \
+    typedef internal::VecTraits<sgn##bits, n>::vec128 vec128;                                           \
+    size_t roiw16 = size.width >= (16/sizeof(sgn##bits)-1) ? size.width - (16/sizeof(sgn##bits)-1) : 0; \
+    typedef internal::VecTraits<sgn##bits, n>::vec64 vec64;                                             \
+    size_t roiw8 = size.width >= (8/sizeof(sgn##bits)-1) ? size.width - (8/sizeof(sgn##bits)-1) : 0;    \
+                                                                                                        \
+    for (size_t i = 0u; i < size.height; ++i)                                                           \
+    {                                                                                                   \
+        const sgn##bits * src = internal::getRowPtr(srcBase, srcStride, i);                             \
+        FILL_LINES##n(VROW, sgn##bits)                                                                  \
+        size_t sj = 0u, dj = 0u;                                                                        \
+                                                                                                        \
+        for (; dj < roiw16; sj += MUL##n(16)/sizeof(sgn##bits), dj += 16/sizeof(sgn##bits))             \
+            SPLIT_QUAD(sgn, bits, n)                                                                    \
+                                                                                                        \
+        if (dj < roiw8)                                                                                 \
+        {                                                                                               \
+            vec64 v_src = vld##n##_##sgn##bits(src + sj);                                               \
+            FILL_LINES##n(VST1, sgn##bits)                                                              \
+            sj += MUL##n(8)/sizeof(sgn##bits);                                                          \
+            dj += 8/sizeof(sgn##bits);                                                                  \
+        }                                                                                               \
+                                                                                                        \
+        for (; dj < size.width; sj += n, ++dj)                                                          \
+        {                                                                                               \
+            FILL_LINES##n(SST, sgn##bits)                                                               \
+        }                                                                                               \
+    }                                                                                                   \
+}
+
+#define SPLIT64(sgn,n) void split##n(const Size2D &_size,                                               \
+                                     const sgn##64 * srcBase, ptrdiff_t srcStride                       \
+                                     FILL_LINES##n(FARG, sgn##64) )                                     \
+{                                                                                                       \
+    internal::assertSupportedConfiguration();                                                           \
+    Size2D size(_size);                                                                                 \
+    if (CONTDST##n                                                                                      \
+        dst0Stride == (ptrdiff_t)(size.width))                                                          \
+    {                                                                                                   \
+        size.width *= size.height;                                                                      \
+        size.height = 1;                                                                                \
+    }                                                                                                   \
+    typedef internal::VecTraits<sgn##64, n>::vec64 vec64;                                               \
+                                                                                                        \
+    for (size_t i = 0u; i < size.height; ++i)                                                           \
+    {                                                                                                   \
+        const sgn##64 * src = internal::getRowPtr(srcBase, srcStride, i);                               \
+        FILL_LINES##n(VROW, sgn##64)                                                                    \
+        size_t sj = 0u, dj = 0u;                                                                        \
+                                                                                                        \
+        for (; dj < size.width; sj += n, ++dj)                                                          \
+        {                                                                                               \
+            vec64 v_src = vld##n##_##sgn##64(src + sj);                                                 \
+            FILL_LINES##n(VST1, sgn##64)                                                                \
+        }                                                                                               \
+    }                                                                                                   \
+}
+
+#if !defined(__aarch64__) && defined(__GNUC__) && __GNUC__ == 4 &&  __GNUC_MINOR__ < 7 && !defined(__clang__)
+
+#define ALPHA_QUAD(sgn, bits) { \
+                                  internal::prefetch(src + sj); \
+                                  __asm__ ( \
+                                      "vld4." #bits " {d0, d2, d4, d6}, [%[in0]]    \n\t" \
+                                      "vld4." #bits " {d1, d3, d5, d7}, [%[in1]]    \n\t" \
+                                      "vst3." #bits " {d0, d2, d4}, [%[out3_1]]     \n\t" \
+                                      "vst3." #bits " {d1, d3, d5}, [%[out3_2]]     \n\t" \
+                                      "vst1." #bits " {d6-d7}, [%[out1]]            \n\t" \
+                                      : \
+                                      : [out3_1] "r" (dst3 + d3j), [out3_2] "r" (dst3 + d3j + 24/sizeof(sgn##bits)), [out1] "r" (dst1 + d1j), \
+                                        [in0]  "r" (src + sj), [in1]  "r" (src + sj + 32/sizeof(sgn##bits)) \
+                                      : "d0","d1","d2","d3","d4","d5","d6","d7" \
+                                  ); \
+                              }
+
+#else
+
+#define ALPHA_QUAD(sgn, bits) { \
+                                  internal::prefetch(src + sj); \
+                                  union { vec128_4 v4; vec128_3 v3; } vals; \
+                                  vals.v4 = vld4q_##sgn##bits(src + sj); \
+                                  vst3q_##sgn##bits(dst3 + d3j, vals.v3); \
+                                  vst1q_##sgn##bits(dst1 + d1j, vals.v4.val[3]); \
+                              }
+
+#endif 
+
+#define SPLIT4ALPHA(sgn,bits) void split4(const Size2D &_size,                                          \
+                                          const sgn##bits * srcBase, ptrdiff_t srcStride,               \
+                                          sgn##bits * dst3Base, ptrdiff_t dst3Stride,                   \
+                                          sgn##bits * dst1Base, ptrdiff_t dst1Stride)                   \
+{                                                                                                       \
+    internal::assertSupportedConfiguration();                                                           \
+    Size2D size(_size);                                                                                 \
+    if (srcStride == dst3Stride &&                                                                      \
+        srcStride == dst1Stride &&                                                                      \
+        srcStride == (ptrdiff_t)(size.width))                                                           \
+    {                                                                                                   \
+        size.width *= size.height;                                                                      \
+        size.height = 1;                                                                                \
+    }                                                                                                   \
+    typedef internal::VecTraits<sgn##bits, 4>::vec128 vec128_4;                                         \
+    typedef internal::VecTraits<sgn##bits, 3>::vec128 vec128_3;                                         \
+    size_t roiw16 = size.width >= (16/sizeof(sgn##bits)-1) ? size.width - (16/sizeof(sgn##bits)-1) : 0; \
+    typedef internal::VecTraits<sgn##bits, 4>::vec64 vec64_4;                                           \
+    typedef internal::VecTraits<sgn##bits, 3>::vec64 vec64_3;                                           \
+    size_t roiw8 = size.width >= (8/sizeof(sgn##bits)-1) ? size.width - (8/sizeof(sgn##bits)-1) : 0;    \
+                                                                                                        \
+    for (size_t i = 0u; i < size.height; ++i)                                                           \
+    {                                                                                                   \
+        const sgn##bits * src = internal::getRowPtr(srcBase, srcStride, i);                             \
+        sgn##bits * dst3 = internal::getRowPtr(dst3Base, dst3Stride, i);                                \
+        sgn##bits * dst1 = internal::getRowPtr(dst1Base, dst1Stride, i);                                \
+        size_t sj = 0u, d3j = 0u, d1j = 0u;                                                             \
+                                                                                                        \
+        for (; d1j < roiw16; sj += MUL4(16)/sizeof(sgn##bits), d3j += MUL3(16)/sizeof(sgn##bits),       \
+                                                               d1j += 16/sizeof(sgn##bits))             \
+            ALPHA_QUAD(sgn, bits)                                                                       \
+                                                                                                        \
+        if (d1j < roiw8)                                                                                \
+        {                                                                                               \
+            union { vec64_4 v4; vec64_3 v3; } vals;                                                     \
+            vals.v4 = vld4_##sgn##bits(src + sj);                                                       \
+            vst3_u8(dst3 + d3j, vals.v3);                                                               \
+            vst1_u8(dst1 + d1j, vals.v4.val[3]);                                                        \
+            sj += MUL4(8)/sizeof(sgn##bits);                                                            \
+            d3j += MUL3(8)/sizeof(sgn##bits);                                                           \
+            d1j += 8/sizeof(sgn##bits);                                                                 \
+        }                                                                                               \
+                                                                                                        \
+        for (; d1j < size.width; sj += 4, d3j += 3, ++d1j)                                              \
+        {                                                                                               \
+            dst3[d3j+0] = src[sj + 0];                                                                  \
+            dst3[d3j+1] = src[sj + 1];                                                                  \
+            dst3[d3j+2] = src[sj + 2];                                                                  \
+            dst1[d1j]   = src[sj + 3];                                                                  \
+        }                                                                                               \
+    }                                                                                                   \
+}
+
+#else
+
+#define VOID_LINE(type, n) (void)dst##n##Base; (void)dst##n##Stride;
+
+#define SPLIT(sgn,bits,n) void split##n(const Size2D &size,                                          \
+                                    const sgn##bits * srcBase, ptrdiff_t srcStride                   \
+                                    FILL_LINES##n(FARG, sgn##bits) )                                 \
+{                                                                                                    \
+    internal::assertSupportedConfiguration();                                                        \
+    (void)size;                                                                                      \
+    (void)srcBase;                                                                                   \
+    (void)srcStride;                                                                                 \
+    FILL_LINES##n(VOID, sgn##bits)                                                                   \
+}
+
+#define SPLIT64(sgn,n) SPLIT(sgn,64,n)
+
+#define SPLIT4ALPHA(sgn,bits) void split4(const Size2D &size,                                        \
+                                          const sgn##bits * srcBase, ptrdiff_t srcStride,            \
+                                          sgn##bits * dst3Base, ptrdiff_t dst3Stride,                \
+                                          sgn##bits * dst1Base, ptrdiff_t dst1Stride)                \
+{                                                                                                    \
+    internal::assertSupportedConfiguration();                                                        \
+    (void)size;                                                                                      \
+    (void)srcBase;                                                                                   \
+    (void)srcStride;                                                                                 \
+    (void)dst3Base;                                                                                  \
+    (void)dst3Stride;                                                                                \
+    (void)dst1Base;                                                                                  \
+    (void)dst1Stride;                                                                                \
+}
+
+#endif //CAROTENE_NEON
+
+SPLIT(u, 8,2)
+SPLIT(u, 8,3)
+SPLIT(u, 8,4)
+SPLIT(u,16,2)
+SPLIT(u,16,3)
+SPLIT(u,16,4)
+SPLIT(s,32,2)
+SPLIT(s,32,3)
+SPLIT(s,32,4)
+
+SPLIT64(s, 2)
+SPLIT64(s, 3)
+SPLIT64(s, 4)
+
+SPLIT4ALPHA(u,8)
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/channels_combine.cpp

@@ -0,0 +1,389 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#define FILL_LINES2(macro,type) \
+            macro##_LINE(type,0) \
+            macro##_LINE(type,1)
+#define FILL_LINES3(macro,type) \
+            FILL_LINES2(macro,type) \
+            macro##_LINE(type,2)
+#define FILL_LINES4(macro,type) \
+            FILL_LINES3(macro,type) \
+            macro##_LINE(type,3)
+
+#define  FARG_LINE(type, n) , const type * src##n##Base, ptrdiff_t src##n##Stride
+
+#ifdef CAROTENE_NEON
+
+#define  VROW_LINE(type, n) const type * src##n = internal::getRowPtr(src##n##Base, src##n##Stride, i);
+#define  PREF_LINE(type, n) internal::prefetch(src##n + sj);
+#define VLD1Q_LINE(type, n) v_dst.val[n] = vld1q_##type(src##n + sj);
+#define  PRLD_LINE(type, n) internal::prefetch(src##n + sj); v_dst.val[n] = vld1q_##type(src##n + sj);
+#define  VLD1_LINE(type, n) v_dst.val[n] = vld1_##type(src##n + sj);
+#define   SLD_LINE(type, n) dst[dj + n] = src##n[sj];
+
+#define MUL2(val) (val << 1)
+#define MUL3(val) (MUL2(val) + val)
+#define MUL4(val) (val << 2)
+
+#define CONTSRC2 dstStride == src0Stride && \
+                 dstStride == src1Stride &&
+#define CONTSRC3 dstStride == src0Stride && \
+                 dstStride == src1Stride && \
+                 dstStride == src2Stride &&
+#define CONTSRC4 dstStride == src0Stride && \
+                 dstStride == src1Stride && \
+                 dstStride == src2Stride && \
+                 dstStride == src3Stride &&
+
+#if !defined(__aarch64__) && defined(__GNUC__) && __GNUC__ == 4 &&  __GNUC_MINOR__ < 7 && !defined(__clang__)
+
+#define MERGE_ASM2(sgn, bits) __asm__ ( \
+                                          "vld1." #bits " {d0-d1}, [%[in0]]             \n\t" \
+                                          "vld1." #bits " {d2-d3}, [%[in1]]             \n\t" \
+                                          "vst2." #bits " {d0, d2}, [%[out0]]           \n\t" \
+                                          "vst2." #bits " {d1, d3}, [%[out1]]           \n\t" \
+                                          : \
+                                          : [in0] "r" (src0 + sj), [in1] "r" (src1 + sj), \
+                                            [out0]  "r" (dst + dj), [out1]  "r" (dst + dj + MUL2(8)/sizeof(sgn##bits)) \
+                                          : "d0","d1","d2","d3" \
+                                      );
+#define MERGE_ASM3(sgn, bits) __asm__ ( \
+                                          "vld1." #bits " {d0-d1}, [%[in0]]             \n\t" \
+                                          "vld1." #bits " {d2-d3}, [%[in1]]             \n\t" \
+                                          "vld1." #bits " {d4-d5}, [%[in2]]             \n\t" \
+                                          "vst3." #bits " {d0, d2, d4}, [%[out0]]       \n\t" \
+                                          "vst3." #bits " {d1, d3, d5}, [%[out1]]       \n\t" \
+                                          : \
+                                          : [in0] "r" (src0 + sj), [in1] "r" (src1 + sj), [in2] "r" (src2 + sj), \
+                                            [out0]  "r" (dst + dj), [out1]  "r" (dst + dj + MUL3(8)/sizeof(sgn##bits)) \
+                                          : "d0","d1","d2","d3","d4","d5" \
+                                      );
+#define MERGE_ASM4(sgn, bits) __asm__ ( \
+                                          "vld1." #bits " {d0-d1}, [%[in0]]             \n\t" \
+                                          "vld1." #bits " {d2-d3}, [%[in1]]             \n\t" \
+                                          "vld1." #bits " {d4-d5}, [%[in2]]             \n\t" \
+                                          "vld1." #bits " {d6-d7}, [%[in3]]             \n\t" \
+                                          "vst4." #bits " {d0, d2, d4, d6}, [%[out0]]   \n\t" \
+                                          "vst4." #bits " {d1, d3, d5, d7}, [%[out1]]   \n\t" \
+                                          : \
+                                          : [in0] "r" (src0 + sj), [in1] "r" (src1 + sj), [in2] "r" (src2 + sj), [in3] "r" (src3 + sj), \
+                                            [out0]  "r" (dst + dj), [out1]  "r" (dst + dj + MUL4(8)/sizeof(sgn##bits)) \
+                                          : "d0","d1","d2","d3","d4","d5","d6","d7" \
+                                      );
+
+#define MERGE_QUAD(sgn, bits, n) { \
+                                     FILL_LINES##n(PREF, sgn##bits) \
+                                     MERGE_ASM##n(sgn, bits) \
+                                 }
+
+#else
+
+#define MERGE_QUAD(sgn, bits, n) { \
+                                     vec128 v_dst; \
+                                     /*FILL_LINES##n(PREF, sgn##bits) \
+                                     FILL_LINES##n(VLD1Q, sgn##bits)*/ \
+                                     FILL_LINES##n(PRLD, sgn##bits) \
+                                     vst##n##q_##sgn##bits(dst + dj, v_dst); \
+                                 }
+
+#endif
+
+#define COMBINE(sgn,bits,n) void combine##n(const Size2D &_size                                             \
+                                        FILL_LINES##n(FARG, sgn##bits),                                     \
+                                        sgn##bits * dstBase, ptrdiff_t dstStride)                           \
+{                                                                                                           \
+    internal::assertSupportedConfiguration();                                                               \
+    Size2D size(_size);                                                                                     \
+    if (CONTSRC##n                                                                                          \
+        dstStride == (ptrdiff_t)(size.width))                                                               \
+    {                                                                                                       \
+        size.width *= size.height;                                                                          \
+        size.height = 1;                                                                                    \
+    }                                                                                                       \
+    typedef internal::VecTraits<sgn##bits, n>::vec128 vec128;                                               \
+    size_t roiw16 = size.width >= (16/sizeof(sgn##bits) - 1) ? size.width - (16/sizeof(sgn##bits) - 1) : 0; \
+    typedef internal::VecTraits<sgn##bits, n>::vec64 vec64;                                                 \
+    size_t roiw8 = size.width >= (8/sizeof(sgn##bits) - 1) ? size.width - (8/sizeof(sgn##bits) - 1) : 0;    \
+                                                                                                            \
+    for (size_t i = 0u; i < size.height; ++i)                                                               \
+    {                                                                                                       \
+        FILL_LINES##n(VROW, sgn##bits)                                                                      \
+        sgn##bits * dst = internal::getRowPtr(dstBase, dstStride, i);                                       \
+        size_t sj = 0u, dj = 0u;                                                                            \
+                                                                                                            \
+        for (; sj < roiw16; sj += 16/sizeof(sgn##bits), dj += MUL##n(16)/sizeof(sgn##bits))                 \
+            MERGE_QUAD(sgn, bits, n)                                                                        \
+                                                                                                            \
+        if ( sj < roiw8 )                                                                                   \
+        {                                                                                                   \
+            vec64 v_dst;                                                                                    \
+            FILL_LINES##n(VLD1, sgn##bits)                                                                  \
+            vst##n##_##sgn##bits(dst + dj, v_dst);                                                          \
+            sj += 8/sizeof(sgn##bits); dj += MUL##n(8)/sizeof(sgn##bits);                                   \
+        }                                                                                                   \
+                                                                                                            \
+        for (; sj < size.width; ++sj, dj += n)                                                              \
+        {                                                                                                   \
+            FILL_LINES##n(SLD, sgn##bits)                                                                   \
+        }                                                                                                   \
+    }                                                                                                       \
+}
+
+#define COMBINE64(sgn,n) void combine##n(const Size2D &_size                                                \
+                                               FILL_LINES##n(FARG, sgn##64),                                \
+                                               sgn##64 * dstBase, ptrdiff_t dstStride)                      \
+{                                                                                                           \
+    internal::assertSupportedConfiguration();                                                               \
+    Size2D size(_size);                                                                                     \
+    if (CONTSRC##n                                                                                          \
+        dstStride == (ptrdiff_t)(size.width))                                                               \
+    {                                                                                                       \
+        size.width *= size.height;                                                                          \
+        size.height = 1;                                                                                    \
+    }                                                                                                       \
+    typedef internal::VecTraits<sgn##64, n>::vec64 vec64;                                                   \
+                                                                                                            \
+    for (size_t i = 0u; i < size.height; ++i)                                                               \
+    {                                                                                                       \
+        FILL_LINES##n(VROW, sgn##64)                                                                        \
+        sgn##64 * dst = internal::getRowPtr(dstBase, dstStride, i);                                         \
+        size_t sj = 0u, dj = 0u;                                                                            \
+                                                                                                            \
+        for (; sj < size.width; ++sj, dj += n)                                                              \
+        {                                                                                                   \
+            vec64 v_dst;                                                                                    \
+            FILL_LINES##n(VLD1, sgn##64)                                                                    \
+            vst##n##_##sgn##64(dst + dj, v_dst);                                                            \
+            /*FILL_LINES##n(SLD, sgn##64)*/                                                                 \
+        }                                                                                                   \
+    }                                                                                                       \
+}
+
+#else
+
+#define  VOID_LINE(type, n) (void)src##n##Base; (void)src##n##Stride;
+
+#define COMBINE(sgn,bits,n) void combine##n(const Size2D &size                                              \
+                                        FILL_LINES##n(FARG, sgn##bits),                                     \
+                                        sgn##bits * dstBase, ptrdiff_t dstStride)                           \
+{                                                                                                           \
+    internal::assertSupportedConfiguration();                                                               \
+    (void)size;                                                                                             \
+    FILL_LINES##n(VOID, sgn##bits)                                                                          \
+    (void)dstBase;                                                                                          \
+    (void)dstStride;                                                                                        \
+}
+#define COMBINE64(sgn,n) COMBINE(sgn,64,n)
+
+#endif //CAROTENE_NEON
+
+COMBINE(u, 8,2)
+COMBINE(u, 8,3)
+COMBINE(u, 8,4)
+COMBINE(u,16,2)
+COMBINE(u,16,3)
+COMBINE(u,16,4)
+COMBINE(s,32,2)
+COMBINE(s,32,3)
+COMBINE(s,32,4)
+COMBINE64(s, 2)
+COMBINE64(s, 3)
+COMBINE64(s, 4)
+
+void combineYUYV(const Size2D &size,
+                 const u8 * srcyBase, ptrdiff_t srcyStride,
+                 const u8 * srcuBase, ptrdiff_t srcuStride,
+                 const u8 * srcvBase, ptrdiff_t srcvStride,
+                 u8 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+#ifndef __ANDROID__
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+#endif
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0u; i < size.height; i += 1)
+    {
+        const u8 * srcy = internal::getRowPtr(srcyBase, srcyStride, i);
+        const u8 * srcu = internal::getRowPtr(srcuBase, srcuStride, i);
+        const u8 * srcv = internal::getRowPtr(srcvBase, srcvStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t syj = 0u, sj = 0u, dj = 0u;
+
+#ifndef __ANDROID__
+        for (; sj < roiw32; sj += 32, syj += 64, dj += 128)
+        {
+            internal::prefetch(srcy + syj);
+            internal::prefetch(srcu + sj);
+            internal::prefetch(srcv + sj);
+
+            uint8x16x2_t v_y = vld2q_u8(srcy + syj);
+            uint8x16x4_t v_dst;
+            v_dst.val[0] = v_y.val[0];
+            v_dst.val[1] = vld1q_u8(srcu + sj);
+            v_dst.val[2] = v_y.val[1];
+            v_dst.val[3] = vld1q_u8(srcv + sj);
+            vst4q_u8(dst + dj, v_dst);
+
+            v_y = vld2q_u8(srcy + syj + 32);
+            v_dst.val[0] = v_y.val[0];
+            v_dst.val[1] = vld1q_u8(srcu + sj + 16);
+            v_dst.val[2] = v_y.val[1];
+            v_dst.val[3] = vld1q_u8(srcv + sj + 16);
+            vst4q_u8(dst + dj + 64, v_dst);
+        }
+#endif
+
+        for (; sj < roiw8; sj += 8, syj += 16, dj += 32)
+        {
+            uint8x8x2_t v_y = vld2_u8(srcy + syj);
+            uint8x8x4_t v_dst;
+            v_dst.val[0] = v_y.val[0];
+            v_dst.val[1] = vld1_u8(srcu + sj);
+            v_dst.val[2] = v_y.val[1];
+            v_dst.val[3] = vld1_u8(srcv + sj);
+            vst4_u8(dst + dj, v_dst);
+        }
+
+        for (; sj < size.width; ++sj, syj += 2, dj += 4)
+        {
+            dst[dj] = srcy[syj];
+            dst[dj + 1] = srcu[sj];
+            dst[dj + 2] = srcy[syj + 1];
+            dst[dj + 3] = srcv[sj];
+        }
+    }
+#else
+    (void)size;
+    (void)srcyBase;
+    (void)srcyStride;
+    (void)srcuBase;
+    (void)srcuStride;
+    (void)srcvBase;
+    (void)srcvStride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void combineUYVY(const Size2D &size,
+                 const u8 * srcyBase, ptrdiff_t srcyStride,
+                 const u8 * srcuBase, ptrdiff_t srcuStride,
+                 const u8 * srcvBase, ptrdiff_t srcvStride,
+                 u8 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+#ifndef __ANDROID__
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+#endif
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0u; i < size.height; ++i)
+    {
+        const u8 * srcy = internal::getRowPtr(srcyBase, srcyStride, i);
+        const u8 * srcu = internal::getRowPtr(srcuBase, srcuStride, i);
+        const u8 * srcv = internal::getRowPtr(srcvBase, srcvStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t syj = 0u, sj = 0u, dj = 0u;
+
+#ifndef __ANDROID__
+        for (; sj < roiw32; sj += 32, syj += 64, dj += 128)
+        {
+            internal::prefetch(srcy + syj);
+            internal::prefetch(srcu + sj);
+            internal::prefetch(srcv + sj);
+
+            uint8x16x2_t v_y = vld2q_u8(srcy + syj);
+            uint8x16x4_t v_dst;
+            v_dst.val[0] = vld1q_u8(srcu + sj);
+            v_dst.val[1] = v_y.val[0];
+            v_dst.val[2] = vld1q_u8(srcv + sj);
+            v_dst.val[3] = v_y.val[1];
+            vst4q_u8(dst + dj, v_dst);
+
+            v_y = vld2q_u8(srcy + syj + 32);
+            v_dst.val[0] = vld1q_u8(srcu + sj + 16);
+            v_dst.val[1] = v_y.val[0];
+            v_dst.val[2] = vld1q_u8(srcv + sj + 16);
+            v_dst.val[3] = v_y.val[1];
+            vst4q_u8(dst + dj + 64, v_dst);
+        }
+#endif
+
+        for (; sj < roiw8; sj += 8, syj += 16, dj += 32)
+        {
+            uint8x8x2_t v_y = vld2_u8(srcy + syj);
+            uint8x8x4_t v_dst;
+            v_dst.val[0] = vld1_u8(srcu + sj);
+            v_dst.val[1] = v_y.val[0];
+            v_dst.val[2] = vld1_u8(srcv + sj);
+            v_dst.val[3] = v_y.val[1];
+            vst4_u8(dst + dj, v_dst);
+        }
+
+        for (; sj < size.width; ++sj, syj += 2, dj += 4)
+        {
+            dst[dj] = srcu[sj];
+            dst[dj + 1] = srcy[syj];
+            dst[dj + 2] = srcv[sj];
+            dst[dj + 3] = srcy[syj + 1];
+        }
+    }
+#else
+    (void)size;
+    (void)srcyBase;
+    (void)srcyStride;
+    (void)srcuBase;
+    (void)srcuStride;
+    (void)srcvBase;
+    (void)srcvStride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/cmp.cpp

@@ -0,0 +1,340 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+inline void vnst(u8* dst, uint8x16_t v1, uint8x16_t v2) { vst1q_u8(dst, v1); vst1q_u8(dst+16, v2); }
+inline void vnst(u8* dst, uint16x8_t v1, uint16x8_t v2) { vst1q_u8(dst, vcombine_u8(vmovn_u16(v1), vmovn_u16(v2))); }
+inline void vnst(u8* dst, uint32x4_t v1, uint32x4_t v2) { vst1_u8(dst, vmovn_u16(vcombine_u16(vmovn_u32(v1), vmovn_u32(v2)))); }
+
+template <typename Op, int elsize> struct vtail
+{
+    static inline void compare(const typename Op::type * src0, const typename Op::type * src1,
+                               u8 * dst, const Op & op,
+                               size_t &x, size_t width)
+    {
+        //do nothing since there couldn't be enough data
+        (void)src0;
+        (void)src1;
+        (void)dst;
+        (void)op;
+        (void)x;
+        (void)width;
+    }
+};
+template <typename Op> struct vtail<Op, 2>
+{
+    static inline void compare(const typename Op::type * src0, const typename Op::type * src1,
+                               u8 * dst, const Op & op,
+                               size_t &x, size_t width)
+    {
+        typedef typename Op::type type;
+        typedef typename internal::VecTraits<type>::vec128 vec128;
+        typedef typename internal::VecTraits<type>::unsign::vec128 uvec128;
+        //There no more than 15 elements in the tail, so we could handle 8 element vector only once
+        if( x + 8 < width)
+        {
+            vec128  v_src0, v_src1;
+            uvec128 v_dst;
+
+            v_src0 = internal::vld1q(src0 + x);
+            v_src1 = internal::vld1q(src1 + x);
+            op(v_src0, v_src1, v_dst);
+            internal::vst1(dst + x, internal::vmovn(v_dst));
+            x+=8;
+        }
+    }
+};
+template <typename Op> struct vtail<Op, 1>
+{
+    static inline void compare(const typename Op::type * src0, const typename Op::type * src1,
+                               u8 * dst, const Op & op,
+                               size_t &x, size_t width)
+    {
+        typedef typename Op::type type;
+        typedef typename internal::VecTraits<type>::vec128 vec128;
+        typedef typename internal::VecTraits<type>::unsign::vec128 uvec128;
+        typedef typename internal::VecTraits<type>::vec64 vec64;
+        typedef typename internal::VecTraits<type>::unsign::vec64 uvec64;
+        //There no more than 31 elements in the tail, so we could handle once 16+8 or 16 or 8 elements
+        if( x + 16 < width)
+        {
+            vec128  v_src0, v_src1;
+            uvec128 v_dst;
+
+            v_src0 = internal::vld1q(src0 + x);
+            v_src1 = internal::vld1q(src1 + x);
+            op(v_src0, v_src1, v_dst);
+            internal::vst1q(dst + x, v_dst);
+            x+=16;
+        }
+        if( x + 8 < width)
+        {
+            vec64  v_src0, v_src1;
+            uvec64 v_dst;
+
+            v_src0 = internal::vld1(src0 + x);
+            v_src1 = internal::vld1(src1 + x);
+            op(v_src0, v_src1, v_dst);
+            internal::vst1(dst + x, v_dst);
+            x+=8;
+        }
+    }
+};
+
+template <typename Op>
+void vcompare(Size2D size,
+              const typename Op::type * src0Base, ptrdiff_t src0Stride,
+              const typename Op::type * src1Base, ptrdiff_t src1Stride,
+              u8 * dstBase, ptrdiff_t dstStride, const Op & op)
+{
+    typedef typename Op::type type;
+    typedef typename internal::VecTraits<type>::vec128 vec128;
+    typedef typename internal::VecTraits<type>::unsign::vec128 uvec128;
+
+    if (src0Stride == src1Stride && src0Stride == dstStride &&
+        src0Stride == (ptrdiff_t)(size.width * sizeof(type)))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+
+    const u32 step_base = 32 / sizeof(type);
+    size_t roiw_base = size.width >= (step_base - 1) ? size.width - step_base + 1 : 0;
+
+    for (size_t y = 0; y < size.height; ++y)
+    {
+        const type * src0 = internal::getRowPtr(src0Base, src0Stride, y);
+        const type * src1 = internal::getRowPtr(src1Base, src1Stride, y);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, y);
+        size_t x = 0;
+
+        for( ; x < roiw_base; x += step_base )
+        {
+            internal::prefetch(src0 + x);
+            internal::prefetch(src1 + x);
+
+            vec128 v_src00 = internal::vld1q(src0 + x), v_src01 = internal::vld1q(src0 + x + 16 / sizeof(type));
+            vec128 v_src10 = internal::vld1q(src1 + x), v_src11 = internal::vld1q(src1 + x + 16 / sizeof(type));
+            uvec128 v_dst0;
+            uvec128 v_dst1;
+
+            op(v_src00, v_src10, v_dst0);
+            op(v_src01, v_src11, v_dst1);
+
+            vnst(dst + x, v_dst0, v_dst1);
+        }
+
+        vtail<Op, sizeof(type)>::compare(src0, src1, dst, op, x, size.width);
+
+        for (; x < size.width; ++x)
+        {
+            op(src0 + x, src1 + x, dst + x);
+        }
+    }
+}
+
+template<typename T>
+struct OpCmpEQ
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0, const typename internal::VecTraits<T>::vec128 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec128 & v_dst) const
+    {
+        v_dst = internal::vceqq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0, const typename internal::VecTraits<T>::vec64 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec64 & v_dst) const
+    {
+        v_dst = internal::vceq(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] == src1[0] ? 255 : 0;
+    }
+};
+
+template<typename T>
+struct OpCmpNE
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0, const typename internal::VecTraits<T>::vec128 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec128 & v_dst) const
+    {
+        v_dst = internal::vmvnq(internal::vceqq(v_src0, v_src1));
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0, const typename internal::VecTraits<T>::vec64 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec64 & v_dst) const
+    {
+        v_dst = internal::vmvn(internal::vceq(v_src0, v_src1));
+    }
+
+    void operator() (const T * src0, const T * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] == src1[0] ? 0 : 255;
+    }
+};
+
+template<typename T>
+struct OpCmpGT
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0, const typename internal::VecTraits<T>::vec128 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec128 & v_dst) const
+    {
+        v_dst = internal::vcgtq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0, const typename internal::VecTraits<T>::vec64 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec64 & v_dst) const
+    {
+        v_dst = internal::vcgt(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] > src1[0] ? 255 : 0;
+    }
+};
+
+template<typename T>
+struct OpCmpGE
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0, const typename internal::VecTraits<T>::vec128 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec128 & v_dst) const
+    {
+        v_dst = internal::vcgeq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0, const typename internal::VecTraits<T>::vec64 & v_src1,
+              typename internal::VecTraits<T>::unsign::vec64 & v_dst) const
+    {
+        v_dst = internal::vcge(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, u8 * dst) const
+    {
+        dst[0] = src0[0] >= src1[0] ? 255 : 0;
+    }
+};
+
+}
+
+#define IMPL_CMPOP(op, type)                              \
+void cmp##op(const Size2D &size,                          \
+             const type * src0Base, ptrdiff_t src0Stride, \
+             const type * src1Base, ptrdiff_t src1Stride, \
+                       u8 *dstBase, ptrdiff_t dstStride)  \
+{                                                         \
+    internal::assertSupportedConfiguration();             \
+    vcompare(size,                                        \
+             src0Base, src0Stride,                        \
+             src1Base, src1Stride,                        \
+             dstBase, dstStride,                          \
+             OpCmp##op<type>());                          \
+}
+
+#else
+
+#define IMPL_CMPOP(op, type)                              \
+void cmp##op(const Size2D &size,                          \
+             const type * src0Base, ptrdiff_t src0Stride, \
+             const type * src1Base, ptrdiff_t src1Stride, \
+             u8 *dstBase, ptrdiff_t dstStride)            \
+{                                                         \
+    internal::assertSupportedConfiguration();             \
+    (void)size;                                           \
+    (void)src0Base;                                       \
+    (void)src0Stride;                                     \
+    (void)src1Base;                                       \
+    (void)src1Stride;                                     \
+    (void)dstBase;                                        \
+    (void)dstStride;                                      \
+}
+
+#endif
+
+IMPL_CMPOP(EQ, u8)
+IMPL_CMPOP(EQ, s8)
+IMPL_CMPOP(EQ, u16)
+IMPL_CMPOP(EQ, s16)
+IMPL_CMPOP(EQ, u32)
+IMPL_CMPOP(EQ, s32)
+IMPL_CMPOP(EQ, f32)
+
+IMPL_CMPOP(NE, u8)
+IMPL_CMPOP(NE, s8)
+IMPL_CMPOP(NE, u16)
+IMPL_CMPOP(NE, s16)
+IMPL_CMPOP(NE, u32)
+IMPL_CMPOP(NE, s32)
+IMPL_CMPOP(NE, f32)
+
+IMPL_CMPOP(GT, u8)
+IMPL_CMPOP(GT, s8)
+IMPL_CMPOP(GT, u16)
+IMPL_CMPOP(GT, s16)
+IMPL_CMPOP(GT, u32)
+IMPL_CMPOP(GT, s32)
+IMPL_CMPOP(GT, f32)
+
+IMPL_CMPOP(GE, u8)
+IMPL_CMPOP(GE, s8)
+IMPL_CMPOP(GE, u16)
+IMPL_CMPOP(GE, s16)
+IMPL_CMPOP(GE, u32)
+IMPL_CMPOP(GE, s32)
+IMPL_CMPOP(GE, f32)
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/common.cpp

@@ -0,0 +1,108 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include <cstdlib>
+#include <iostream>
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+bool isSupportedConfiguration()
+{
+#ifdef CAROTENE_NEON
+    return true;
+#else
+    return false;
+#endif
+}
+
+namespace internal {
+
+void assertSupportedConfiguration(bool parametersSupported)
+{
+    if (!isSupportedConfiguration()) {
+        std::cerr << "internal error: attempted to use an unavailable function" << std::endl;
+        std::abort();
+    }
+
+    if (!parametersSupported) {
+        std::cerr << "internal error: attempted to use a function with unsupported parameters" << std::endl;
+        std::abort();
+    }
+}
+
+ptrdiff_t borderInterpolate(ptrdiff_t _p, size_t _len, BORDER_MODE borderType, size_t startMargin, size_t endMargin)
+{
+    ptrdiff_t p = _p + (ptrdiff_t)startMargin;
+    size_t len = _len + startMargin + endMargin;
+    if( (size_t)p < len )
+        return _p;
+    else if( borderType == BORDER_MODE_REPLICATE )
+        p = p < 0 ? 0 : (ptrdiff_t)len - 1;
+    else if( borderType == BORDER_MODE_REFLECT || borderType == BORDER_MODE_REFLECT101 )
+    {
+        s32 delta = borderType == BORDER_MODE_REFLECT101;
+        if( len == 1 )
+            return 0;
+        do
+        {
+            if( p < 0 )
+                p = -p - 1 + delta;
+            else
+                p = (ptrdiff_t)len - 1 - (p - (ptrdiff_t)len) - delta;
+        }
+        while( (size_t)p >= len );
+    }
+    else if( borderType == BORDER_MODE_WRAP )
+    {
+        if( p < 0 )
+            p -= ((p-(ptrdiff_t)len+1)/(ptrdiff_t)len)*(ptrdiff_t)len;
+        if( p >= (ptrdiff_t)len )
+            p %= (ptrdiff_t)len;
+    }
+    else if( borderType == BORDER_MODE_CONSTANT )
+        p = -1;
+    else
+        internal::assertSupportedConfiguration(false);
+    return p - (ptrdiff_t)startMargin;
+}
+
+} // namespace internal
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/common.hpp

@@ -0,0 +1,97 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_SRC_COMMON_HPP
+#define CAROTENE_SRC_COMMON_HPP
+
+#include <cstddef>
+#include <cstdlib>
+#include <algorithm>
+
+#if defined WITH_NEON && (defined __ARM_NEON__ || defined __ARM_NEON)
+#define CAROTENE_NEON
+#endif
+
+#ifdef CAROTENE_NEON
+#include <arm_neon.h>
+#include "intrinsics.hpp"
+#endif
+
+#include <carotene/functions.hpp>
+#include "saturate_cast.hpp"
+
+namespace CAROTENE_NS { namespace internal {
+
+inline void prefetch(const void *ptr, size_t offset = 32*10)
+{
+#if defined __GNUC__
+    __builtin_prefetch(reinterpret_cast<const char*>(ptr) + offset);
+#elif defined _MSC_VER && defined CAROTENE_NEON
+    __prefetch(reinterpret_cast<const char*>(ptr) + offset);
+#else
+    (void)ptr;
+    (void)offset;
+#endif
+}
+
+template <typename T>
+inline T *getRowPtr(T *base, ptrdiff_t stride, size_t row)
+{
+    char *baseRaw = const_cast<char *>(reinterpret_cast<const char *>(base));
+    return reinterpret_cast<T *>(baseRaw + ptrdiff_t(row) * stride);
+}
+
+void assertSupportedConfiguration(bool parametersSupported = true);
+
+ptrdiff_t borderInterpolate(ptrdiff_t _p, size_t _len, BORDER_MODE borderType, size_t startMargin = 0, size_t endMargin = 0);
+
+/*!
+ *  Aligns pointer by the certain number of bytes
+ *
+ *  This small inline function aligns the pointer by the certain number of bytes by shifting
+ *  it forward by 0 or a positive offset.
+ */
+template<typename T> inline T* alignPtr(T* ptr, size_t n=sizeof(T))
+{
+    return (T*)(((size_t)ptr + n-1) & -n);
+}
+
+}}
+
+#endif

libs/opencv/3rdparty/carotene/src/convert_depth.cpp

@@ -0,0 +1,399 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <int shift>
+void lshiftConst(const Size2D &size,
+                 const u8 * srcBase, ptrdiff_t srcStride,
+                 s16 * dstBase, ptrdiff_t dstStride)
+{
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            uint8x16_t v_src = vld1q_u8(src + j);
+            int16x8_t v_dst0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src)));
+            int16x8_t v_dst1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src)));
+
+            vst1q_s16(dst + j, vshlq_n_s16(v_dst0, shift));
+            vst1q_s16(dst + j + 8, vshlq_n_s16(v_dst1, shift));
+        }
+        for (; j < roiw8; j += 8)
+        {
+            int16x8_t v_dst = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src + j)));
+            vst1q_s16(dst + j, vshlq_n_s16(v_dst, shift));
+        }
+
+        for (; j < size.width; j++)
+        {
+            dst[j] = ((s16)src[j] << shift);
+        }
+    }
+}
+
+template <>
+void lshiftConst<0>(const Size2D &size,
+                    const u8 * srcBase, ptrdiff_t srcStride,
+                    s16 * dstBase, ptrdiff_t dstStride)
+{
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            uint8x16_t v_src = vld1q_u8(src + j);
+            int16x8_t v_dst0 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src)));
+            int16x8_t v_dst1 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src)));
+
+            vst1q_s16(dst + j, v_dst0);
+            vst1q_s16(dst + j + 8, v_dst1);
+        }
+        for (; j < roiw8; j += 8)
+        {
+            int16x8_t v_dst = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src + j)));
+            vst1q_s16(dst + j, v_dst);
+        }
+
+        for (; j < size.width; j++)
+        {
+            dst[j] = (s16)src[j];
+        }
+    }
+}
+
+template <int shift>
+void rshiftConst(const Size2D &size,
+                 const s16 * srcBase, ptrdiff_t srcStride,
+                 u8 * dstBase, ptrdiff_t dstStride,
+                 CONVERT_POLICY cpolicy)
+{
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const s16 * src = internal::getRowPtr(srcBase, srcStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (cpolicy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src + j);
+                int16x8_t v_src0 = vshrq_n_s16(vld1q_s16(src + j), shift),
+                          v_src1 = vshrq_n_s16(vld1q_s16(src + j + 8), shift);
+                uint8x16_t v_dst = vcombine_u8(vqmovun_s16(v_src0),
+                                               vqmovun_s16(v_src1));
+                vst1q_u8(dst + j, v_dst);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src = vshrq_n_s16(vld1q_s16(src + j), shift);
+                vst1_u8(dst + j, vqmovun_s16(v_src));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = internal::saturate_cast<u8>((src[j] >> shift));
+            }
+        }
+        else // CONVERT_POLICY_WRAP
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src + j);
+                int16x8_t v_src0 = vshrq_n_s16(vld1q_s16(src + j), shift),
+                          v_src1 = vshrq_n_s16(vld1q_s16(src + j + 8), shift);
+                int8x16_t v_dst = vcombine_s8(vmovn_s16(v_src0),
+                                              vmovn_s16(v_src1));
+                vst1q_u8(dst + j, vreinterpretq_u8_s8(v_dst));
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src = vshrq_n_s16(vld1q_s16(src + j), shift);
+                vst1_u8(dst + j, vreinterpret_u8_s8(vmovn_s16(v_src)));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = (u8)((src[j] >> shift));
+            }
+        }
+    }
+}
+
+template <>
+void rshiftConst<0>(const Size2D &size,
+                    const s16 * srcBase, ptrdiff_t srcStride,
+                    u8 * dstBase, ptrdiff_t dstStride,
+                    CONVERT_POLICY cpolicy)
+{
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const s16 * src = internal::getRowPtr(srcBase, srcStride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (cpolicy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src + j);
+                int16x8_t v_src0 = vld1q_s16(src + j), v_src1 = vld1q_s16(src + j + 8);
+                uint8x16_t v_dst = vcombine_u8(vqmovun_s16(v_src0), vqmovun_s16(v_src1));
+                vst1q_u8(dst + j, v_dst);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src = vld1q_s16(src + j);
+                vst1_u8(dst + j, vqmovun_s16(v_src));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = internal::saturate_cast<u8>(src[j]);
+            }
+        }
+        else // CONVERT_POLICY_WRAP
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src + j);
+                int16x8_t v_src0 = vld1q_s16(src + j), v_src1 = vld1q_s16(src + j + 8);
+                int8x16_t v_dst = vcombine_s8(vmovn_s16(v_src0), vmovn_s16(v_src1));
+                vst1q_u8(dst + j, vreinterpretq_u8_s8(v_dst));
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src = vld1q_s16(src + j);
+                vst1_u8(dst + j, vreinterpret_u8_s8(vmovn_s16(v_src)));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = (u8)src[j];
+            }
+        }
+    }
+}
+
+typedef void (* lshiftConstFunc)(const Size2D &size,
+                                const u8 * srcBase, ptrdiff_t srcStride,
+                                s16 * dstBase, ptrdiff_t dstStride);
+
+typedef void (* rshiftConstFunc)(const Size2D &size,
+                                const s16 * srcBase, ptrdiff_t srcStride,
+                                u8 * dstBase, ptrdiff_t dstStride,
+                                CONVERT_POLICY cpolicy);
+
+} // namespace
+
+#endif
+
+void lshift(const Size2D &size,
+            const u8 * srcBase, ptrdiff_t srcStride,
+            s16 * dstBase, ptrdiff_t dstStride,
+            u32 shift)
+{
+    internal::assertSupportedConfiguration();
+
+#ifdef CAROTENE_NEON
+    if (shift >= 16u)
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            std::memset(dst, 0, sizeof(s16) * size.width);
+        }
+        return;
+    }
+
+    // this ugly contruction is needed to avoid:
+    // /usr/lib/gcc/arm-linux-gnueabihf/4.8/include/arm_neon.h:3581:59: error: argument must be a constant
+    // return (int16x8_t)__builtin_neon_vshl_nv8hi (__a, __b, 1);
+
+    lshiftConstFunc funcs[16] =
+    {
+        lshiftConst<0>,
+        lshiftConst<1>,
+        lshiftConst<2>,
+        lshiftConst<3>,
+        lshiftConst<4>,
+        lshiftConst<5>,
+        lshiftConst<6>,
+        lshiftConst<7>,
+        lshiftConst<8>,
+        lshiftConst<9>,
+        lshiftConst<10>,
+        lshiftConst<11>,
+        lshiftConst<12>,
+        lshiftConst<13>,
+        lshiftConst<14>,
+        lshiftConst<15>
+    }, func = funcs[shift];
+
+    func(size, srcBase, srcStride, dstBase, dstStride);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)shift;
+#endif
+}
+
+void rshift(const Size2D &size,
+            const s16 * srcBase, ptrdiff_t srcStride,
+            u8 * dstBase, ptrdiff_t dstStride,
+            u32 shift, CONVERT_POLICY cpolicy)
+{
+    internal::assertSupportedConfiguration();
+
+#ifdef CAROTENE_NEON
+    if (shift >= 16)
+    {
+        if (cpolicy == CONVERT_POLICY_WRAP)
+        {
+            size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+            size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+            int16x8_t v_zero = vdupq_n_s16(0);
+
+            for (size_t i = 0; i < size.height; ++i)
+            {
+                const s16 * src = internal::getRowPtr(srcBase, srcStride, i);
+                u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+                size_t j = 0;
+
+                for (; j < roiw16; j += 16)
+                {
+                    internal::prefetch(src + j);
+                    int16x8_t v_src0 = vld1q_s16(src + j), v_src1 = vld1q_s16(src + j + 8);
+                    uint8x16_t v_dst = vcombine_u8(vmovn_u16(vcltq_s16(v_src0, v_zero)),
+                                                   vmovn_u16(vcltq_s16(v_src1, v_zero)));
+                    vst1q_u8(dst + j, v_dst);
+                }
+                for (; j < roiw8; j += 8)
+                {
+                    int16x8_t v_src = vld1q_s16(src + j);
+                    vst1_u8(dst + j, vmovn_u16(vcltq_s16(v_src, v_zero)));
+                }
+
+                for (; j < size.width; j++)
+                {
+                    dst[j] = src[j] >= 0 ? 0 : 255;
+                }
+            }
+        }
+        else
+        {
+            for (size_t i = 0; i < size.height; ++i)
+            {
+                u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+                std::memset(dst, 0, sizeof(u8) * size.width);
+            }
+        }
+        return;
+    }
+
+    // this ugly contruction is needed to avoid:
+    // /usr/lib/gcc/arm-linux-gnueabihf/4.8/include/arm_neon.h:3581:59: error: argument must be a constant
+    // return (int16x8_t)__builtin_neon_vshr_nv8hi (__a, __b, 1);
+
+    rshiftConstFunc funcs[16] =
+    {
+        rshiftConst<0>,
+        rshiftConst<1>,
+        rshiftConst<2>,
+        rshiftConst<3>,
+        rshiftConst<4>,
+        rshiftConst<5>,
+        rshiftConst<6>,
+        rshiftConst<7>,
+        rshiftConst<8>,
+        rshiftConst<9>,
+        rshiftConst<10>,
+        rshiftConst<11>,
+        rshiftConst<12>,
+        rshiftConst<13>,
+        rshiftConst<14>,
+        rshiftConst<15>
+    }, func = funcs[shift];
+
+    func(size, srcBase, srcStride, dstBase, dstStride, cpolicy);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)shift;
+    (void)cpolicy;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/convolution.cpp

@@ -0,0 +1,340 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "saturate_cast.hpp"
+
+namespace CAROTENE_NS {
+
+bool isConvolutionSupported(const Size2D &size, const Size2D &ksize,
+                            BORDER_MODE border)
+{
+    return isSupportedConfiguration() && size.width >= 8 &&
+        (border == BORDER_MODE_CONSTANT ||
+            border == BORDER_MODE_REPLICATE) &&
+        (ksize.width == 3) && (ksize.height == 3);
+}
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <int shift>
+int32x4_t vshrq_s32(int32x4_t value)
+{
+    return vshrq_n_s32(value, shift);
+}
+
+template <>
+int32x4_t vshrq_s32<0>(int32x4_t value)
+{
+    return value;
+}
+
+} // namespace
+
+typedef int32x4_t (* vshrq_s32_func)(int32x4_t value);
+
+#endif
+
+void convolution(const Size2D &size,
+                 const u8 * srcBase, ptrdiff_t srcStride,
+                 u8 * dstBase, ptrdiff_t dstStride,
+                 BORDER_MODE border, u8 borderValue,
+                 const Size2D & ksize, s16 * kernelBase, u32 scale)
+{
+    internal::assertSupportedConfiguration(isConvolutionSupported(size, ksize, border));
+#ifdef CAROTENE_NEON
+    const uint8x8_t v_zero_u8 = vdup_n_u8(0);
+    const uint8x8_t v_border = vdup_n_u8(borderValue);
+    const int32x4_t v_zero_s32 = vdupq_n_s32(0);
+
+    uint8x8_t tprev[3] = { v_zero_u8, v_zero_u8, v_zero_u8 },
+              tcurr[3] = { v_zero_u8, v_zero_u8, v_zero_u8 },
+              tnext[3] = { v_zero_u8, v_zero_u8, v_zero_u8 };
+    uint8x8_t t0 = v_zero_u8, t1 = v_zero_u8, t2 = v_zero_u8;
+
+    ptrdiff_t width = (ptrdiff_t)size.width, height = (ptrdiff_t)size.height;
+    static const vshrq_s32_func vshrq_s32_a[33] =
+    {
+        vshrq_s32<0>,
+        vshrq_s32<1>,
+        vshrq_s32<2>,
+        vshrq_s32<3>,
+        vshrq_s32<4>,
+        vshrq_s32<5>,
+        vshrq_s32<6>,
+        vshrq_s32<7>,
+        vshrq_s32<8>,
+        vshrq_s32<9>,
+        vshrq_s32<10>,
+        vshrq_s32<11>,
+        vshrq_s32<12>,
+        vshrq_s32<13>,
+        vshrq_s32<14>,
+        vshrq_s32<15>,
+        vshrq_s32<16>,
+        vshrq_s32<17>,
+        vshrq_s32<18>,
+        vshrq_s32<19>,
+        vshrq_s32<20>,
+        vshrq_s32<21>,
+        vshrq_s32<22>,
+        vshrq_s32<23>,
+        vshrq_s32<24>,
+        vshrq_s32<25>,
+        vshrq_s32<26>,
+        vshrq_s32<27>,
+        vshrq_s32<28>,
+        vshrq_s32<29>,
+        vshrq_s32<30>,
+        vshrq_s32<31>,
+        vshrq_s32<32>
+    };
+    vshrq_s32_func vshrq_s32_p = vshrq_s32_a[scale];
+
+    for (ptrdiff_t y = 0; y < height; ++y)
+    {
+        const u8 * srow0 = y == 0 && border == BORDER_MODE_CONSTANT ? NULL : internal::getRowPtr(srcBase, srcStride, std::max<ptrdiff_t>(y - 1, 0));
+        const u8 * srow1 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8 * srow2 = y + 1 == height && border == BORDER_MODE_CONSTANT ? NULL : internal::getRowPtr(srcBase, srcStride, std::min(y + 1, height - 1));
+        u8 * drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        u8 prevx[3] = { 0, 0, 0 },
+           currx[3] = { 0, 0, 0 },
+           nextx[3] = { 0, 0, 0 };
+        ptrdiff_t x = 0;
+        const ptrdiff_t bwidth = y + 2 < height ? width : (width - 8);
+
+        // perform vertical convolution
+        for ( ; x <= bwidth; x += 8)
+        {
+            internal::prefetch(srow0 + x);
+            internal::prefetch(srow1 + x);
+            internal::prefetch(srow2 + x);
+
+            uint8x8_t x0 = !srow0 ? v_border : vld1_u8(srow0 + x);
+            uint8x8_t x1 = vld1_u8(srow1 + x);
+            uint8x8_t x2 = !srow2 ? v_border : vld1_u8(srow2 + x);
+
+            // calculate values for plain CPU part below if needed
+            if (x + 8 >= bwidth)
+            {
+                ptrdiff_t x3 = x == width ? width - 1 : x;
+                ptrdiff_t x4 = border == BORDER_MODE_CONSTANT ? x3 - 1 : std::max<ptrdiff_t>(x3 - 1, 0);
+
+                if (border == BORDER_MODE_CONSTANT && x4 < 0)
+                    prevx[0] = prevx[1] = prevx[2] = borderValue;
+                else
+                {
+                    prevx[0] = srow0 ? srow0[x4] : borderValue;
+                    prevx[1] =         srow1[x4]              ;
+                    prevx[2] = srow2 ? srow2[x4] : borderValue;
+                }
+
+                currx[0] = srow0 ? srow0[x3] : borderValue;
+                currx[1] =         srow1[x3]              ;
+                currx[2] = srow2 ? srow2[x3] : borderValue;
+            }
+
+            // make shift
+            if (x)
+            {
+                tprev[0] = tcurr[0];
+                tcurr[0] = tnext[0];
+
+                tprev[1] = tcurr[1];
+                tcurr[1] = tnext[1];
+
+                tprev[2] = tcurr[2];
+                tcurr[2] = tnext[2];
+            }
+
+            tnext[0] = x0;
+            tnext[1] = x1;
+            tnext[2] = x2;
+
+            // make extrapolation for the first elements
+            if (!x)
+            {
+                // make border
+                if (border == BORDER_MODE_CONSTANT)
+                    tcurr[0] = tcurr[1] = tcurr[2] = v_border;
+                else if (border == BORDER_MODE_REPLICATE)
+                {
+                    tcurr[0] = vdup_n_u8(vget_lane_u8(tnext[0], 0));
+                    tcurr[1] = vdup_n_u8(vget_lane_u8(tnext[1], 0));
+                    tcurr[2] = vdup_n_u8(vget_lane_u8(tnext[2], 0));
+                }
+
+                continue;
+            }
+
+            int32x4_t v_dst0 = v_zero_s32, v_dst1 = v_zero_s32;
+
+            {
+                // combine 3 "shifted" vectors
+                t0 = vext_u8(tprev[0], tcurr[0], 7);
+                t1 = tcurr[0];
+                t2 = vext_u8(tcurr[0], tnext[0], 1);
+
+                int16x8_t t0_16s = vreinterpretq_s16_u16(vmovl_u8(t0));
+                int16x8_t t1_16s = vreinterpretq_s16_u16(vmovl_u8(t1));
+                int16x8_t t2_16s = vreinterpretq_s16_u16(vmovl_u8(t2));
+
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t0_16s), kernelBase[8]);
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t1_16s), kernelBase[7]);
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t2_16s), kernelBase[6]);
+
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t0_16s), kernelBase[8]);
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t1_16s), kernelBase[7]);
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t2_16s), kernelBase[6]);
+            }
+
+            {
+                // combine 3 "shifted" vectors
+                t0 = vext_u8(tprev[1], tcurr[1], 7);
+                t1 = tcurr[1];
+                t2 = vext_u8(tcurr[1], tnext[1], 1);
+
+                int16x8_t t0_16s = vreinterpretq_s16_u16(vmovl_u8(t0));
+                int16x8_t t1_16s = vreinterpretq_s16_u16(vmovl_u8(t1));
+                int16x8_t t2_16s = vreinterpretq_s16_u16(vmovl_u8(t2));
+
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t0_16s), kernelBase[5]);
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t1_16s), kernelBase[4]);
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t2_16s), kernelBase[3]);
+
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t0_16s), kernelBase[5]);
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t1_16s), kernelBase[4]);
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t2_16s), kernelBase[3]);
+            }
+
+            {
+                // combine 3 "shifted" vectors
+                t0 = vext_u8(tprev[2], tcurr[2], 7);
+                t1 = tcurr[2];
+                t2 = vext_u8(tcurr[2], tnext[2], 1);
+
+                int16x8_t t0_16s = vreinterpretq_s16_u16(vmovl_u8(t0));
+                int16x8_t t1_16s = vreinterpretq_s16_u16(vmovl_u8(t1));
+                int16x8_t t2_16s = vreinterpretq_s16_u16(vmovl_u8(t2));
+
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t0_16s), kernelBase[2]);
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t1_16s), kernelBase[1]);
+                v_dst0 = vmlal_n_s16(v_dst0, vget_low_s16(t2_16s), kernelBase[0]);
+
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t0_16s), kernelBase[2]);
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t1_16s), kernelBase[1]);
+                v_dst1 = vmlal_n_s16(v_dst1, vget_high_s16(t2_16s), kernelBase[0]);
+            }
+
+
+            // make scale
+            v_dst0 = vshrq_s32_p(v_dst0);
+            v_dst1 = vshrq_s32_p(v_dst1);
+
+            // and add them
+            vst1_u8(drow + x - 8, vqmovn_u16(vcombine_u16(vqmovun_s32(v_dst0),
+                                                          vqmovun_s32(v_dst1))));
+        }
+
+        x -= 8;
+        if (x == width)
+            --x;
+
+        for ( ; x < width; ++x)
+        {
+            // make extrapolation for the last elements
+            if (x + 1 >= width)
+            {
+                if (border == BORDER_MODE_CONSTANT)
+                {
+                    nextx[0] = borderValue;
+                    nextx[1] = borderValue;
+                    nextx[2] = borderValue;
+                }
+                else if (border == BORDER_MODE_REPLICATE)
+                {
+                    nextx[0] = srow0[x];
+                    nextx[1] = srow1[x];
+                    nextx[2] = srow2[x];
+                }
+            }
+            else
+            {
+                nextx[0] = srow0 ? srow0[x + 1] : borderValue;
+                nextx[1] =         srow1[x + 1]              ;
+                nextx[2] = srow2 ? srow2[x + 1] : borderValue;
+            }
+
+            s32 val = 0;
+            for (s32 _y = 0; _y < 3; ++_y)
+                val += prevx[_y] * kernelBase[(2 - _y) * 3 + 2] +
+                       currx[_y] * kernelBase[(2 - _y) * 3 + 1] +
+                       nextx[_y] * kernelBase[(2 - _y) * 3 + 0];
+
+            drow[x] = internal::saturate_cast<u8>(val >> scale);
+
+            // make shift
+            prevx[0] = currx[0];
+            currx[0] = nextx[0];
+
+            prevx[1] = currx[1];
+            currx[1] = nextx[1];
+
+            prevx[2] = currx[2];
+            currx[2] = nextx[2];
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+    (void)ksize;
+    (void)kernelBase;
+    (void)scale;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/count_nonzero.cpp

@@ -0,0 +1,430 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include <limits>
+
+namespace CAROTENE_NS {
+
+s32 countNonZero(const Size2D &_size,
+                 const u8 * srcBase, ptrdiff_t srcStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    size_t roiw16 = size.width & ~15u;
+    s32 result = 0;
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const u8* src = internal::getRowPtr( srcBase,  srcStride, k);
+        size_t i = 0;
+
+        #define COUNTNONZERO8U_BLOCK_SIZE (16*255)
+        uint8x16_t vc1 = vmovq_n_u8(1);
+        for (; i < roiw16;)
+        {
+            size_t lim = std::min(i + COUNTNONZERO8U_BLOCK_SIZE, size.width) - 16;
+            uint8x16_t vs = vmovq_n_u8(0);
+
+            for (; i <= lim; i+= 16)
+            {
+                internal::prefetch(src + i);
+                uint8x16_t vln = vld1q_u8(src + i);
+                uint8x16_t vnz = vminq_u8(vln, vc1);
+                vs = vaddq_u8(vs, vnz);
+            }
+
+            uint32x4_t vs4 = vpaddlq_u16(vpaddlq_u8(vs));
+            uint32x2_t vs2 = vadd_u32(vget_low_u32(vs4), vget_high_u32(vs4));
+
+            s32 s[2];
+            vst1_u32((u32*)s, vs2);
+
+            if (s[0] < 0 || s[1] < 0)//saturate in case of overflow ~ 2GB of non-zeros...
+            {
+                return 0x7fFFffFF;
+            }
+            result += (s[0] += s[1]);
+            if (s[0] < 0 || result < 0)
+            {
+                return 0x7fFFffFF;
+            }
+        }
+        for (; i < size.width; i++)
+            result += (src[i] != 0)?1:0;
+        if (result < 0)//saturate in case of overflow ~ 2GB of non-zeros...
+        {
+            return 0x7fFFffFF;
+        }
+    }
+    return result;
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+
+    return 0;
+#endif
+}
+
+s32 countNonZero(const Size2D &_size,
+                 const u16 * srcBase, ptrdiff_t srcStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    size_t roiw8 = size.width & ~7u;
+    s32 result = 0;
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const u16* src = internal::getRowPtr( srcBase,  srcStride, k);
+        size_t i = 0;
+
+        #define COUNTNONZERO16U_BLOCK_SIZE (8*(256*256-1))
+        uint16x8_t vc1 = vmovq_n_u16(1);
+        for (; i < roiw8;)
+        {
+            size_t lim = std::min(i + COUNTNONZERO16U_BLOCK_SIZE, size.width) - 8;
+            uint16x8_t vs = vmovq_n_u16(0);
+
+            for (; i <= lim; i+= 8)
+            {
+                internal::prefetch(src + i);
+                uint16x8_t vln = vld1q_u16(src + i);
+                uint16x8_t vnz = vminq_u16(vln, vc1);
+                vs = vaddq_u16(vs, vnz);
+            }
+
+            uint32x4_t vs4 = vpaddlq_u16(vs);
+            uint32x2_t vs2 = vadd_u32(vget_low_u32(vs4), vget_high_u32(vs4));
+
+            s32 s[2];
+            vst1_u32((u32*)s, vs2);
+
+            if (s[0] < 0 || s[1] < 0)//saturate in case of overflow ~ 4GB of non-zeros...
+            {
+                return 0x7fFFffFF;
+            }
+            result += (s[0] += s[1]);
+            if (s[0] < 0 || result < 0)
+            {
+                return 0x7fFFffFF;
+            }
+        }
+        for (; i < size.width; i++)
+            result += (src[i] != 0)?1:0;
+        if (result < 0)//saturate in case of overflow ~ 4GB of non-zeros...
+        {
+            return 0x7fFFffFF;
+        }
+    }
+    return result;
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+
+    return 0;
+#endif
+}
+
+s32 countNonZero(const Size2D &_size,
+                 const s32 * srcBase, ptrdiff_t srcStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    size_t roiw4 = size.width & ~3u;
+    s32 result = 0;
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const u32* src = (const u32*)internal::getRowPtr( srcBase,  srcStride, k);
+        u32 i = 0;
+
+        uint32x4_t vc1 = vmovq_n_u32(1);
+        uint32x4_t vs = vmovq_n_u32(0);
+
+        for (; i < roiw4; i += 4 )
+        {
+            internal::prefetch(src + i);
+            uint32x4_t vln = vld1q_u32(src + i);
+            uint32x4_t vnz = vminq_u32(vln, vc1);
+            vs = vqaddq_u32(vs, vnz);
+        }
+
+        uint32x2_t vs2 = vqadd_u32(vget_low_u32(vs), vget_high_u32(vs));
+
+        s32 s[2];
+        vst1_u32((u32*)s, vs2);
+
+        if (s[0] < 0 || s[1] < 0)//saturate in case of overflow ~ 8GB of non-zeros...
+        {
+            return 0x7fFFffFF;
+        }
+        result += (s[0] += s[1]);
+        if (s[0] < 0 || result < 0)
+        {
+            return 0x7fFFffFF;
+        }
+
+        for (; i < size.width; i++)
+            result += (src[i] != 0)?1:0;
+        if (result < 0)//saturate in case of overflow ~ 8GB of non-zeros...
+        {
+            return 0x7fFFffFF;
+        }
+    }
+    return result;
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+
+    return 0;
+#endif
+}
+
+s32 countNonZero(const Size2D &_size,
+                 const f32 * srcBase, ptrdiff_t srcStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    size_t roiw4 = size.width & ~3u;
+    s32 result = 0;
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const f32* src = internal::getRowPtr( srcBase,  srcStride, k);
+        size_t i = 0;
+
+        float32x4_t vc0 = vmovq_n_f32(0);
+        int32x4_t vs = vmovq_n_s32(0);
+
+        for (; i < roiw4; i += 4 )
+        {
+            internal::prefetch(src + i);
+            float32x4_t vln = vld1q_f32(src + i);
+            int32x4_t vnz = vreinterpretq_s32_u32(vmvnq_u32(vceqq_f32(vln, vc0)));
+            vs = vqaddq_s32(vs, vnz);
+        }
+
+        int32x2_t vs2 = vqneg_s32(vqadd_s32(vget_low_s32(vs), vget_high_s32(vs)));
+
+        int s[2];
+        vst1_s32(s, vs2);
+
+        result += (s[0] += s[1]);
+        if (s[0] < 0 || result < 0)//case of overflow ~ 8GB of non-zeros...
+        {
+            return 0x7fFFffFF;
+        }
+
+        for (; i < size.width; i++)
+            result += (src[i] < std::numeric_limits<float>::min() && src[i] > -std::numeric_limits<float>::min())?0:1;
+
+        if (result < 0)
+        {
+            return 0x7fFFffFF;
+        }
+    }
+    return result;
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+
+    return 0;
+#endif
+}
+
+s32 countNonZero(const Size2D &_size,
+                 const f64 * srcBase, ptrdiff_t srcStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    size_t roiw8 = size.width & ~7u;
+    size_t roiw4 = size.width & ~3u;
+    size_t roiw2 = size.width & ~1u;
+    uint64x2_t vmask1 = vdupq_n_u64(0x7fFFffFFffFFffFFULL); //will treat denormals as non-zero
+    uint32x4_t vc0 = vmovq_n_u32(0);
+
+    s32 result = 0;
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const f64* src = internal::getRowPtr( srcBase,  srcStride, k);
+        size_t i = 0;
+
+        int32x2_t vs1 = vmov_n_s32(0);
+        int32x2_t vs2 = vmov_n_s32(0);
+        int32x2_t vs3 = vmov_n_s32(0);
+        int32x2_t vs4 = vmov_n_s32(0);
+
+        for (; i < roiw8; i += 8 )
+        {
+            internal::prefetch(src + i + 6);
+            uint64x2_t vln1 = vld1q_u64((const u64*)(src + i));
+            uint64x2_t vln2 = vld1q_u64((const u64*)(src + i + 2));
+            uint64x2_t vln3 = vld1q_u64((const u64*)(src + i + 4));
+            uint64x2_t vln4 = vld1q_u64((const u64*)(src + i + 6));
+
+            uint64x2_t vm1 = vandq_u64(vln1, vmask1);
+            uint64x2_t vm2 = vandq_u64(vln2, vmask1);
+            uint64x2_t vm3 = vandq_u64(vln3, vmask1);
+            uint64x2_t vm4 = vandq_u64(vln4, vmask1);
+
+            uint32x4_t vequ1 = vceqq_u32(vreinterpretq_u32_u64(vm1), vc0);
+            uint32x4_t vequ2 = vceqq_u32(vreinterpretq_u32_u64(vm2), vc0);
+            uint32x4_t vequ3 = vceqq_u32(vreinterpretq_u32_u64(vm3), vc0);
+            uint32x4_t vequ4 = vceqq_u32(vreinterpretq_u32_u64(vm4), vc0);
+
+            uint32x4_t vlx1 = vmvnq_u32(vequ1);
+            uint32x4_t vlx2 = vmvnq_u32(vequ2);
+            uint32x4_t vlx3 = vmvnq_u32(vequ3);
+            uint32x4_t vlx4 = vmvnq_u32(vequ4);
+
+            int32x2_t vnz1 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx1), vget_high_u32(vlx1)));
+            int32x2_t vnz2 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx2), vget_high_u32(vlx2)));
+            int32x2_t vnz3 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx3), vget_high_u32(vlx3)));
+            int32x2_t vnz4 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx4), vget_high_u32(vlx4)));
+
+            vs1 = vqadd_s32(vs1, vnz1);
+            vs2 = vqadd_s32(vs2, vnz2);
+            vs3 = vqadd_s32(vs3, vnz3);
+            vs4 = vqadd_s32(vs4, vnz4);
+        }
+
+        if (i < roiw4)
+        {
+            internal::prefetch(src + i + 2);
+            uint64x2_t vln1 = vld1q_u64((const u64*)(src + i));
+            uint64x2_t vln2 = vld1q_u64((const u64*)(src + i + 2));
+
+            uint64x2_t vm1 = vandq_u64(vln1, vmask1);
+            uint64x2_t vm2 = vandq_u64(vln2, vmask1);
+
+            uint32x4_t vequ1 = vceqq_u32(vreinterpretq_u32_u64(vm1), vc0);
+            uint32x4_t vequ2 = vceqq_u32(vreinterpretq_u32_u64(vm2), vc0);
+
+            uint32x4_t vlx1 = vmvnq_u32(vequ1);
+            uint32x4_t vlx2 = vmvnq_u32(vequ2);
+
+            int32x2_t vnz1 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx1), vget_high_u32(vlx1)));
+            int32x2_t vnz2 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx2), vget_high_u32(vlx2)));
+
+            vs1 = vqadd_s32(vs1, vnz1);
+            vs2 = vqadd_s32(vs2, vnz2);
+            i += 4;
+        }
+
+        if (i < roiw2)
+        {
+            internal::prefetch(src + i);
+            uint64x2_t vln1 = vld1q_u64((const u64*)(src + i));
+
+            uint64x2_t vm1 = vandq_u64(vln1, vmask1);
+
+            uint32x4_t vequ1 = vceqq_u32(vreinterpretq_u32_u64(vm1), vc0);
+
+            uint32x4_t vlx1 = vmvnq_u32(vequ1);
+
+            int32x2_t vnz1 = vreinterpret_s32_u32(vpmax_u32(vget_low_u32(vlx1), vget_high_u32(vlx1)));
+
+            vs1 = vqadd_s32(vs1, vnz1);
+            i += 2;
+        }
+
+        vs1 = vqadd_s32(vs1, vs2);
+        vs3 = vqadd_s32(vs3, vs4);
+        vs1 = vqadd_s32(vs1, vs3);
+        int32x2_t vsneg = vqneg_s32(vs1);
+
+        s32 s[2];
+        vst1_s32(s, vsneg);
+
+        result += (s[0] += s[1]);
+        if (s[0] < 0 || result < 0)//case of overflow ~ 16GB of non-zeros...
+        {
+            return 0x7fFFffFF;
+        }
+
+        for (; i < size.width; i++)
+            result += (src[i] < std::numeric_limits<double>::min() && src[i] > -std::numeric_limits<double>::min())?0:1;
+        if (result < 0)
+        {
+            return 0x7fFFffFF;
+        }
+    }
+    return result;
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+
+    return 0;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/div.cpp

@@ -0,0 +1,694 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2016, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+#include <cstring>
+#include <cfloat>
+#include <cmath>
+#include <limits>
+
+namespace CAROTENE_NS {
+
+namespace {
+
+#ifdef CAROTENE_NEON
+
+inline float32x4_t vroundq(const float32x4_t& v)
+{
+    const int32x4_t signMask = vdupq_n_s32(1 << 31), half = vreinterpretq_s32_f32(vdupq_n_f32(0.5f));
+    float32x4_t v_addition = vreinterpretq_f32_s32(vorrq_s32(half, vandq_s32(signMask, vreinterpretq_s32_f32(v))));
+    return vaddq_f32(v, v_addition);
+}
+
+template <typename T>
+inline T divSaturateQ(const T &v1, const T &v2, const float scale)
+{
+    return internal::vcombine(internal::vqmovn(divSaturateQ(internal::vmovl(internal::vget_low(v1)),
+                                                            internal::vmovl(internal::vget_low(v2)), scale)),
+                              internal::vqmovn(divSaturateQ(internal::vmovl(internal::vget_high(v1)),
+                                                            internal::vmovl(internal::vget_high(v2)), scale))
+                             );
+}
+template <>
+inline int32x4_t divSaturateQ<int32x4_t>(const int32x4_t &v1, const int32x4_t &v2, const float scale)
+{ return vcvtq_s32_f32(vroundq(vmulq_f32(vmulq_n_f32(vcvtq_f32_s32(v1), scale), internal::vrecpq_f32(vcvtq_f32_s32(v2))))); }
+template <>
+inline uint32x4_t divSaturateQ<uint32x4_t>(const uint32x4_t &v1, const uint32x4_t &v2, const float scale)
+{ return vcvtq_u32_f32(vroundq(vmulq_f32(vmulq_n_f32(vcvtq_f32_u32(v1), scale), internal::vrecpq_f32(vcvtq_f32_u32(v2))))); }
+
+inline float32x2_t vround(const float32x2_t& v)
+{
+    const int32x2_t signMask = vdup_n_s32(1 << 31), half = vreinterpret_s32_f32(vdup_n_f32(0.5f));
+    float32x2_t v_addition = vreinterpret_f32_s32(vorr_s32(half, vand_s32(signMask, vreinterpret_s32_f32(v))));
+    return vadd_f32(v, v_addition);
+}
+
+template <typename T>
+inline T divSaturate(const T &v1, const T &v2, const float scale)
+{
+    return internal::vqmovn(divSaturateQ(internal::vmovl(v1), internal::vmovl(v2), scale));
+}
+template <>
+inline int32x2_t divSaturate<int32x2_t>(const int32x2_t &v1, const int32x2_t &v2, const float scale)
+{ return vcvt_s32_f32(vround(vmul_f32(vmul_n_f32(vcvt_f32_s32(v1), scale), internal::vrecp_f32(vcvt_f32_s32(v2))))); }
+template <>
+inline uint32x2_t divSaturate<uint32x2_t>(const uint32x2_t &v1, const uint32x2_t &v2, const float scale)
+{ return vcvt_u32_f32(vround(vmul_f32(vmul_n_f32(vcvt_f32_u32(v1), scale), internal::vrecp_f32(vcvt_f32_u32(v2))))); }
+
+
+template <typename T>
+inline T divWrapQ(const T &v1, const T &v2, const float scale)
+{
+    return internal::vcombine(internal::vmovn(divWrapQ(internal::vmovl(internal::vget_low(v1)),
+                                                       internal::vmovl(internal::vget_low(v2)), scale)),
+                              internal::vmovn(divWrapQ(internal::vmovl(internal::vget_high(v1)),
+                                                       internal::vmovl(internal::vget_high(v2)), scale))
+                             );
+}
+template <>
+inline int32x4_t divWrapQ<int32x4_t>(const int32x4_t &v1, const int32x4_t &v2, const float scale)
+{ return vcvtq_s32_f32(vmulq_f32(vmulq_n_f32(vcvtq_f32_s32(v1), scale), internal::vrecpq_f32(vcvtq_f32_s32(v2)))); }
+template <>
+inline uint32x4_t divWrapQ<uint32x4_t>(const uint32x4_t &v1, const uint32x4_t &v2, const float scale)
+{ return vcvtq_u32_f32(vmulq_f32(vmulq_n_f32(vcvtq_f32_u32(v1), scale), internal::vrecpq_f32(vcvtq_f32_u32(v2)))); }
+
+template <typename T>
+inline T divWrap(const T &v1, const T &v2, const float scale)
+{
+    return internal::vmovn(divWrapQ(internal::vmovl(v1), internal::vmovl(v2), scale));
+}
+template <>
+inline int32x2_t divWrap<int32x2_t>(const int32x2_t &v1, const int32x2_t &v2, const float scale)
+{ return vcvt_s32_f32(vmul_f32(vmul_n_f32(vcvt_f32_s32(v1), scale), internal::vrecp_f32(vcvt_f32_s32(v2)))); }
+template <>
+inline uint32x2_t divWrap<uint32x2_t>(const uint32x2_t &v1, const uint32x2_t &v2, const float scale)
+{ return vcvt_u32_f32(vmul_f32(vmul_n_f32(vcvt_f32_u32(v1), scale), internal::vrecp_f32(vcvt_f32_u32(v2)))); }
+
+inline  uint8x16_t vtstq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vtstq_u8 (v0, v1); }
+inline  uint16x8_t vtstq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vtstq_u16(v0, v1); }
+inline  uint32x4_t vtstq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vtstq_u32(v0, v1); }
+inline   int8x16_t vtstq(const int8x16_t   & v0, const int8x16_t   & v1) { return vreinterpretq_s8_u8  (vtstq_s8 (v0, v1)); }
+inline   int16x8_t vtstq(const int16x8_t   & v0, const int16x8_t   & v1) { return vreinterpretq_s16_u16(vtstq_s16(v0, v1)); }
+inline   int32x4_t vtstq(const int32x4_t   & v0, const int32x4_t   & v1) { return vreinterpretq_s32_u32(vtstq_s32(v0, v1)); }
+
+inline   uint8x8_t vtst(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vtst_u8 (v0, v1); }
+inline  uint16x4_t vtst(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vtst_u16(v0, v1); }
+inline  uint32x2_t vtst(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vtst_u32(v0, v1); }
+inline    int8x8_t vtst(const int8x8_t    & v0, const int8x8_t    & v1) { return vreinterpret_s8_u8  (vtst_s8 (v0, v1)); }
+inline   int16x4_t vtst(const int16x4_t   & v0, const int16x4_t   & v1) { return vreinterpret_s16_u16(vtst_s16(v0, v1)); }
+inline   int32x2_t vtst(const int32x2_t   & v0, const int32x2_t   & v1) { return vreinterpret_s32_u32(vtst_s32(v0, v1)); }
+#endif
+
+template <typename T>
+void div(const Size2D &size,
+         const T * src0Base, ptrdiff_t src0Stride,
+         const T * src1Base, ptrdiff_t src1Stride,
+         T * dstBase, ptrdiff_t dstStride,
+         f32 scale,
+         CONVERT_POLICY cpolicy)
+{
+    internal::assertSupportedConfiguration();
+
+#ifdef CAROTENE_NEON
+    typedef typename internal::VecTraits<T>::vec128 vec128;
+    typedef typename internal::VecTraits<T>::vec64 vec64;
+
+#if defined(__GNUC__) && (defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
+    static_assert(std::numeric_limits<T>::is_integer, "template implementation is for integer types only");
+#endif
+
+    if (scale == 0.0f ||
+        (std::numeric_limits<T>::is_integer &&
+         (scale * std::numeric_limits<T>::max()) <  1.0f &&
+         (scale * std::numeric_limits<T>::max()) > -1.0f))
+    {
+        for (size_t y = 0; y < size.height; ++y)
+        {
+            T * dst = internal::getRowPtr(dstBase, dstStride, y);
+            std::memset(dst, 0, sizeof(T) * size.width);
+        }
+        return;
+    }
+
+    const size_t step128 = 16 / sizeof(T);
+    size_t roiw128 = size.width >= (step128 - 1) ? size.width - step128 + 1 : 0;
+    const size_t step64 = 8 / sizeof(T);
+    size_t roiw64 = size.width >= (step64 - 1) ? size.width - step64 + 1 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const T * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const T * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        T * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (cpolicy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw128; j += step128)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+
+                vec128 v_src0 = internal::vld1q(src0 + j);
+                vec128 v_src1 = internal::vld1q(src1 + j);
+
+                vec128 v_mask = vtstq(v_src1,v_src1);
+                internal::vst1q(dst + j, internal::vandq(v_mask, divSaturateQ(v_src0, v_src1, scale)));
+            }
+            for (; j < roiw64; j += step64)
+            {
+                vec64 v_src0 = internal::vld1(src0 + j);
+                vec64 v_src1 = internal::vld1(src1 + j);
+
+                vec64 v_mask = vtst(v_src1,v_src1);
+                internal::vst1(dst + j, internal::vand(v_mask,divSaturate(v_src0, v_src1, scale)));
+            }
+            for (; j < size.width; j++)
+            {
+                dst[j] = src1[j] ? internal::saturate_cast<T>(scale * src0[j] / src1[j]) : 0;
+            }
+        }
+        else // CONVERT_POLICY_WRAP
+        {
+            for (; j < roiw128; j += step128)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+
+                vec128 v_src0 = internal::vld1q(src0 + j);
+                vec128 v_src1 = internal::vld1q(src1 + j);
+
+                vec128 v_mask = vtstq(v_src1,v_src1);
+                internal::vst1q(dst + j, internal::vandq(v_mask, divWrapQ(v_src0, v_src1, scale)));
+            }
+            for (; j < roiw64; j += step64)
+            {
+                vec64 v_src0 = internal::vld1(src0 + j);
+                vec64 v_src1 = internal::vld1(src1 + j);
+
+                vec64 v_mask = vtst(v_src1,v_src1);
+                internal::vst1(dst + j, internal::vand(v_mask,divWrap(v_src0, v_src1, scale)));
+            }
+            for (; j < size.width; j++)
+            {
+                dst[j] = src1[j] ? (T)((s32)trunc(scale * src0[j] / src1[j])) : 0;
+            }
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)cpolicy;
+    (void)scale;
+#endif
+}
+
+#ifdef CAROTENE_NEON
+
+template <typename T>
+inline T recipSaturateQ(const T &v2, const float scale)
+{
+    return internal::vcombine(internal::vqmovn(recipSaturateQ(internal::vmovl(internal::vget_low(v2)), scale)),
+                              internal::vqmovn(recipSaturateQ(internal::vmovl(internal::vget_high(v2)), scale))
+                             );
+}
+template <>
+inline int32x4_t recipSaturateQ<int32x4_t>(const int32x4_t &v2, const float scale)
+{ return vcvtq_s32_f32(vmulq_n_f32(internal::vrecpq_f32(vcvtq_f32_s32(v2)), scale)); }
+template <>
+inline uint32x4_t recipSaturateQ<uint32x4_t>(const uint32x4_t &v2, const float scale)
+{ return vcvtq_u32_f32(vmulq_n_f32(internal::vrecpq_f32(vcvtq_f32_u32(v2)), scale)); }
+
+template <typename T>
+inline T recipSaturate(const T &v2, const float scale)
+{
+    return internal::vqmovn(recipSaturateQ(internal::vmovl(v2), scale));
+}
+template <>
+inline int32x2_t recipSaturate<int32x2_t>(const int32x2_t &v2, const float scale)
+{ return vcvt_s32_f32(vmul_n_f32(internal::vrecp_f32(vcvt_f32_s32(v2)), scale)); }
+template <>
+inline uint32x2_t recipSaturate<uint32x2_t>(const uint32x2_t &v2, const float scale)
+{ return vcvt_u32_f32(vmul_n_f32(internal::vrecp_f32(vcvt_f32_u32(v2)), scale)); }
+
+
+template <typename T>
+inline T recipWrapQ(const T &v2, const float scale)
+{
+    return internal::vcombine(internal::vmovn(recipWrapQ(internal::vmovl(internal::vget_low(v2)), scale)),
+                              internal::vmovn(recipWrapQ(internal::vmovl(internal::vget_high(v2)), scale))
+                             );
+}
+template <>
+inline int32x4_t recipWrapQ<int32x4_t>(const int32x4_t &v2, const float scale)
+{ return vcvtq_s32_f32(vmulq_n_f32(internal::vrecpq_f32(vcvtq_f32_s32(v2)), scale)); }
+template <>
+inline uint32x4_t recipWrapQ<uint32x4_t>(const uint32x4_t &v2, const float scale)
+{ return vcvtq_u32_f32(vmulq_n_f32(internal::vrecpq_f32(vcvtq_f32_u32(v2)), scale)); }
+
+template <typename T>
+inline T recipWrap(const T &v2, const float scale)
+{
+    return internal::vmovn(recipWrapQ(internal::vmovl(v2), scale));
+}
+template <>
+inline int32x2_t recipWrap<int32x2_t>(const int32x2_t &v2, const float scale)
+{ return vcvt_s32_f32(vmul_n_f32(internal::vrecp_f32(vcvt_f32_s32(v2)), scale)); }
+template <>
+inline uint32x2_t recipWrap<uint32x2_t>(const uint32x2_t &v2, const float scale)
+{ return vcvt_u32_f32(vmul_n_f32(internal::vrecp_f32(vcvt_f32_u32(v2)), scale)); }
+#endif
+
+template <typename T>
+void recip(const Size2D &size,
+           const T * src1Base, ptrdiff_t src1Stride,
+           T * dstBase, ptrdiff_t dstStride,
+           f32 scale,
+           CONVERT_POLICY cpolicy)
+{
+    internal::assertSupportedConfiguration();
+
+#ifdef CAROTENE_NEON
+    typedef typename internal::VecTraits<T>::vec128 vec128;
+    typedef typename internal::VecTraits<T>::vec64 vec64;
+
+#if defined(__GNUC__) && (defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
+    static_assert(std::numeric_limits<T>::is_integer, "template implementation is for integer types only");
+#endif
+
+    if (scale == 0.0f ||
+        (std::numeric_limits<T>::is_integer &&
+         scale <  1.0f &&
+         scale > -1.0f))
+    {
+        for (size_t y = 0; y < size.height; ++y)
+        {
+            T * dst = internal::getRowPtr(dstBase, dstStride, y);
+            std::memset(dst, 0, sizeof(T) * size.width);
+        }
+        return;
+    }
+
+    const size_t step128 = 16 / sizeof(T);
+    size_t roiw128 = size.width >= (step128 - 1) ? size.width - step128 + 1 : 0;
+    const size_t step64 = 8 / sizeof(T);
+    size_t roiw64 = size.width >= (step64 - 1) ? size.width - step64 + 1 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const T * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        T * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (cpolicy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw128; j += step128)
+            {
+                internal::prefetch(src1 + j);
+
+                vec128 v_src1 = internal::vld1q(src1 + j);
+
+                vec128 v_mask = vtstq(v_src1,v_src1);
+                internal::vst1q(dst + j, internal::vandq(v_mask, recipSaturateQ(v_src1, scale)));
+            }
+            for (; j < roiw64; j += step64)
+            {
+                vec64 v_src1 = internal::vld1(src1 + j);
+
+                vec64 v_mask = vtst(v_src1,v_src1);
+                internal::vst1(dst + j, internal::vand(v_mask, recipSaturate(v_src1, scale)));
+            }
+            for (; j < size.width; j++)
+            {
+                dst[j] = src1[j] ? internal::saturate_cast<T>(scale / src1[j]) : 0;
+            }
+        }
+        else // CONVERT_POLICY_WRAP
+        {
+            for (; j < roiw128; j += step128)
+            {
+                internal::prefetch(src1 + j);
+
+                vec128 v_src1 = internal::vld1q(src1 + j);
+
+                vec128 v_mask = vtstq(v_src1,v_src1);
+                internal::vst1q(dst + j, internal::vandq(v_mask, recipWrapQ(v_src1, scale)));
+            }
+            for (; j < roiw64; j += step64)
+            {
+                vec64 v_src1 = internal::vld1(src1 + j);
+
+                vec64 v_mask = vtst(v_src1,v_src1);
+                internal::vst1(dst + j, internal::vand(v_mask, recipWrap(v_src1, scale)));
+            }
+            for (; j < size.width; j++)
+            {
+                dst[j] = src1[j] ? (T)((s32)trunc(scale / src1[j])) : 0;
+            }
+        }
+    }
+#else
+    (void)size;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)cpolicy;
+    (void)scale;
+#endif
+}
+
+}
+
+void div(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         u8 * dstBase, ptrdiff_t dstStride,
+         f32 scale,
+         CONVERT_POLICY cpolicy)
+{
+    div<u8>(size, src0Base, src0Stride, src1Base, src1Stride, dstBase, dstStride, scale, cpolicy);
+}
+
+void div(const Size2D &size,
+         const s8 * src0Base, ptrdiff_t src0Stride,
+         const s8 * src1Base, ptrdiff_t src1Stride,
+         s8 * dstBase, ptrdiff_t dstStride,
+         f32 scale,
+         CONVERT_POLICY cpolicy)
+{
+    div<s8>(size, src0Base, src0Stride, src1Base, src1Stride, dstBase, dstStride, scale, cpolicy);
+}
+
+void div(const Size2D &size,
+         const u16 * src0Base, ptrdiff_t src0Stride,
+         const u16 * src1Base, ptrdiff_t src1Stride,
+         u16 * dstBase, ptrdiff_t dstStride,
+         f32 scale,
+         CONVERT_POLICY cpolicy)
+{
+    div<u16>(size, src0Base, src0Stride, src1Base, src1Stride, dstBase, dstStride, scale, cpolicy);
+}
+
+void div(const Size2D &size,
+         const s16 * src0Base, ptrdiff_t src0Stride,
+         const s16 * src1Base, ptrdiff_t src1Stride,
+         s16 * dstBase, ptrdiff_t dstStride,
+         f32 scale,
+         CONVERT_POLICY cpolicy)
+{
+    div<s16>(size, src0Base, src0Stride, src1Base, src1Stride, dstBase, dstStride, scale, cpolicy);
+}
+
+void div(const Size2D &size,
+         const s32 * src0Base, ptrdiff_t src0Stride,
+         const s32 * src1Base, ptrdiff_t src1Stride,
+         s32 * dstBase, ptrdiff_t dstStride,
+         f32 scale,
+         CONVERT_POLICY cpolicy)
+{
+    div<s32>(size, src0Base, src0Stride, src1Base, src1Stride, dstBase, dstStride, scale, cpolicy);
+}
+
+void div(const Size2D &size,
+         const f32 * src0Base, ptrdiff_t src0Stride,
+         const f32 * src1Base, ptrdiff_t src1Stride,
+         f32 * dstBase, ptrdiff_t dstStride,
+         f32 scale)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (scale == 0.0f)
+    {
+        for (size_t y = 0; y < size.height; ++y)
+        {
+            f32 * dst = internal::getRowPtr(dstBase, dstStride, y);
+            std::memset(dst, 0, sizeof(f32) * size.width);
+        }
+        return;
+    }
+
+    size_t roiw128 = size.width >= 3 ? size.width - 3 : 0;
+    size_t roiw64 = size.width >= 1 ? size.width - 1 : 0;
+
+    if (std::fabs(scale - 1.0f) < FLT_EPSILON)
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            const f32 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+            const f32 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+            f32 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            size_t j = 0;
+
+            for (; j < roiw128; j += 4)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+
+                float32x4_t v_src0 = vld1q_f32(src0 + j);
+                float32x4_t v_src1 = vld1q_f32(src1 + j);
+
+                vst1q_f32(dst + j, vmulq_f32(v_src0, internal::vrecpq_f32(v_src1)));
+            }
+
+            for (; j < roiw64; j += 2)
+            {
+                float32x2_t v_src0 = vld1_f32(src0 + j);
+                float32x2_t v_src1 = vld1_f32(src1 + j);
+
+                vst1_f32(dst + j, vmul_f32(v_src0, internal::vrecp_f32(v_src1)));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = src0[j] / src1[j];
+            }
+        }
+    }
+    else
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            const f32 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+            const f32 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+            f32 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            size_t j = 0;
+
+            for (; j < roiw128; j += 4)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+
+                float32x4_t v_src0 = vld1q_f32(src0 + j);
+                float32x4_t v_src1 = vld1q_f32(src1 + j);
+
+                vst1q_f32(dst + j, vmulq_f32(vmulq_n_f32(v_src0, scale),
+                                             internal::vrecpq_f32(v_src1)));
+            }
+
+            for (; j < roiw64; j += 2)
+            {
+                float32x2_t v_src0 = vld1_f32(src0 + j);
+                float32x2_t v_src1 = vld1_f32(src1 + j);
+
+                vst1_f32(dst + j, vmul_f32(vmul_n_f32(v_src0, scale),
+                                           internal::vrecp_f32(v_src1)));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = src0[j] * scale / src1[j];
+            }
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)scale;
+#endif
+}
+
+void reciprocal(const Size2D &size,
+                const u8 * srcBase, ptrdiff_t srcStride,
+                u8 * dstBase, ptrdiff_t dstStride,
+                f32 scale,
+                CONVERT_POLICY cpolicy)
+{
+    recip<u8>(size, srcBase, srcStride, dstBase, dstStride, scale, cpolicy);
+}
+
+void reciprocal(const Size2D &size,
+                const s8 * srcBase, ptrdiff_t srcStride,
+                s8 * dstBase, ptrdiff_t dstStride,
+                f32 scale,
+                CONVERT_POLICY cpolicy)
+{
+    recip<s8>(size, srcBase, srcStride, dstBase, dstStride, scale, cpolicy);
+}
+
+void reciprocal(const Size2D &size,
+                const u16 * srcBase, ptrdiff_t srcStride,
+                u16 * dstBase, ptrdiff_t dstStride,
+                f32 scale,
+                CONVERT_POLICY cpolicy)
+{
+    recip<u16>(size, srcBase, srcStride, dstBase, dstStride, scale, cpolicy);
+}
+
+void reciprocal(const Size2D &size,
+                const s16 * srcBase, ptrdiff_t srcStride,
+                s16 * dstBase, ptrdiff_t dstStride,
+                f32 scale,
+                CONVERT_POLICY cpolicy)
+{
+    recip<s16>(size, srcBase, srcStride, dstBase, dstStride, scale, cpolicy);
+}
+
+void reciprocal(const Size2D &size,
+                const s32 * srcBase, ptrdiff_t srcStride,
+                s32 * dstBase, ptrdiff_t dstStride,
+                f32 scale,
+                CONVERT_POLICY cpolicy)
+{
+    recip<s32>(size, srcBase, srcStride, dstBase, dstStride, scale, cpolicy);
+}
+
+void reciprocal(const Size2D &size,
+                const f32 * srcBase, ptrdiff_t srcStride,
+                f32 * dstBase, ptrdiff_t dstStride,
+                f32 scale)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (scale == 0.0f)
+    {
+        for (size_t y = 0; y < size.height; ++y)
+        {
+            f32 * dst = internal::getRowPtr(dstBase, dstStride, y);
+            std::memset(dst, 0, sizeof(f32) * size.width);
+        }
+        return;
+    }
+
+    size_t roiw128 = size.width >= 3 ? size.width - 3 : 0;
+    size_t roiw64 = size.width >= 1 ? size.width - 1 : 0;
+
+    if (std::fabs(scale - 1.0f) < FLT_EPSILON)
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            const f32 * src1 = internal::getRowPtr(srcBase, srcStride, i);
+            f32 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            size_t j = 0;
+
+            for (; j < roiw128; j += 4)
+            {
+                internal::prefetch(src1 + j);
+
+                float32x4_t v_src1 = vld1q_f32(src1 + j);
+
+                vst1q_f32(dst + j, internal::vrecpq_f32(v_src1));
+            }
+
+            for (; j < roiw64; j += 2)
+            {
+                float32x2_t v_src1 = vld1_f32(src1 + j);
+
+                vst1_f32(dst + j, internal::vrecp_f32(v_src1));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = 1.0f / src1[j];
+            }
+        }
+    }
+    else
+    {
+        for (size_t i = 0; i < size.height; ++i)
+        {
+            const f32 * src1 = internal::getRowPtr(srcBase, srcStride, i);
+            f32 * dst = internal::getRowPtr(dstBase, dstStride, i);
+            size_t j = 0;
+
+            for (; j < roiw128; j += 4)
+            {
+                internal::prefetch(src1 + j);
+
+                float32x4_t v_src1 = vld1q_f32(src1 + j);
+
+                vst1q_f32(dst + j, vmulq_n_f32(internal::vrecpq_f32(v_src1), scale));
+            }
+
+            for (; j < roiw64; j += 2)
+            {
+                float32x2_t v_src1 = vld1_f32(src1 + j);
+
+                vst1_f32(dst + j, vmul_n_f32(internal::vrecp_f32(v_src1), scale));
+            }
+
+            for (; j < size.width; j++)
+            {
+                dst[j] = scale / src1[j];
+            }
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)scale;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/dot_product.cpp

@@ -0,0 +1,260 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+f64 dotProduct(const Size2D &_size,
+               const u8 * src0Base, ptrdiff_t src0Stride,
+               const u8 * src1Base, ptrdiff_t src1Stride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (src0Stride == src1Stride &&
+        src0Stride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+
+// It is possible to accumulate up to 66051 uchar multiplication results in uint32 without overflow
+// We process 16 elements and accumulate two new elements per step. So we could handle 66051/2*16 elements
+#define DOT_UINT_BLOCKSIZE 66050*8
+    f64 result = 0.0;
+    for (size_t row = 0; row < size.height; ++row)
+    {
+        const u8 * src0 = internal::getRowPtr(src0Base, src0Stride, row);
+        const u8 * src1 = internal::getRowPtr(src1Base, src1Stride, row);
+
+        size_t i = 0;
+        uint64x2_t ws = vmovq_n_u64(0);
+
+        while(i + 16 <= size.width)
+        {
+            size_t lim = std::min(i + DOT_UINT_BLOCKSIZE, size.width) - 16;
+
+            uint32x4_t s1 = vmovq_n_u32(0);
+            uint32x4_t s2 = vmovq_n_u32(0);
+
+            for (; i <= lim; i += 16)
+            {
+                internal::prefetch(src0 + i);
+                internal::prefetch(src1 + i);
+
+                uint8x16_t vs1 = vld1q_u8(src0 + i);
+                uint8x16_t vs2 = vld1q_u8(src1 + i);
+
+                uint16x8_t vdot1 = vmull_u8(vget_low_u8(vs1), vget_low_u8(vs2));
+                uint16x8_t vdot2 = vmull_u8(vget_high_u8(vs1), vget_high_u8(vs2));
+
+                s1 = vpadalq_u16(s1, vdot1);
+                s2 = vpadalq_u16(s2, vdot2);
+            }
+
+            ws = vpadalq_u32(ws, s1);
+            ws = vpadalq_u32(ws, s2);
+        }
+
+        if(i + 8 <= size.width)
+        {
+            uint8x8_t vs1 = vld1_u8(src0 + i);
+            uint8x8_t vs2 = vld1_u8(src1 + i);
+
+            ws = vpadalq_u32(ws, vpaddlq_u16(vmull_u8(vs1, vs2)));
+            i += 8;
+        }
+
+        result += (double)vget_lane_u64(vadd_u64(vget_low_u64(ws), vget_high_u64(ws)), 0);
+
+        for (; i < size.width; ++i)
+            result += s32(src0[i]) * s32(src1[i]);
+    }
+    return result;
+#else
+    (void)_size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+
+    return 0;
+#endif
+}
+
+f64 dotProduct(const Size2D &_size,
+               const s8 * src0Base, ptrdiff_t src0Stride,
+               const s8 * src1Base, ptrdiff_t src1Stride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (src0Stride == src1Stride &&
+        src0Stride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+
+// It is possible to accumulate up to 131071 schar multiplication results in sint32 without overflow
+// We process 16 elements and accumulate two new elements per step. So we could handle 131071/2*16 elements
+#define DOT_INT_BLOCKSIZE 131070*8
+    f64 result = 0.0;
+    for (size_t row = 0; row < size.height; ++row)
+    {
+        const s8 * src0 = internal::getRowPtr(src0Base, src0Stride, row);
+        const s8 * src1 = internal::getRowPtr(src1Base, src1Stride, row);
+
+        size_t i = 0;
+        int64x2_t ws = vmovq_n_s64(0);
+
+        while(i + 16 <= size.width)
+        {
+            size_t lim = std::min(i + DOT_UINT_BLOCKSIZE, size.width) - 16;
+
+            int32x4_t s1 = vmovq_n_s32(0);
+            int32x4_t s2 = vmovq_n_s32(0);
+
+            for (; i <= lim; i += 16)
+            {
+                internal::prefetch(src0 + i);
+                internal::prefetch(src1 + i);
+
+                int8x16_t vs1 = vld1q_s8(src0 + i);
+                int8x16_t vs2 = vld1q_s8(src1 + i);
+
+                int16x8_t vdot1 = vmull_s8(vget_low_s8(vs1), vget_low_s8(vs2));
+                int16x8_t vdot2 = vmull_s8(vget_high_s8(vs1), vget_high_s8(vs2));
+
+                s1 = vpadalq_s16(s1, vdot1);
+                s2 = vpadalq_s16(s2, vdot2);
+            }
+
+            ws = vpadalq_s32(ws, s1);
+            ws = vpadalq_s32(ws, s2);
+        }
+
+        if(i + 8 <= size.width)
+        {
+            int8x8_t vs1 = vld1_s8(src0 + i);
+            int8x8_t vs2 = vld1_s8(src1 + i);
+
+            ws = vpadalq_s32(ws, vpaddlq_s16(vmull_s8(vs1, vs2)));
+            i += 8;
+        }
+
+        result += (double)vget_lane_s64(vadd_s64(vget_low_s64(ws), vget_high_s64(ws)), 0);
+
+        for (; i < size.width; ++i)
+            result += s32(src0[i]) * s32(src1[i]);
+    }
+    return result;
+#else
+    (void)_size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+
+    return 0;
+#endif
+}
+
+f64 dotProduct(const Size2D &_size,
+               const f32 * src0Base, ptrdiff_t src0Stride,
+               const f32 * src1Base, ptrdiff_t src1Stride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (src0Stride == src1Stride &&
+        src0Stride == (ptrdiff_t)(size.width * sizeof(f32)))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+
+#define DOT_FLOAT_BLOCKSIZE (1 << 13)
+    f64 result = 0.0;
+    for (size_t row = 0; row < size.height; ++row)
+    {
+        const f32 * src0 = internal::getRowPtr(src0Base, src0Stride, row);
+        const f32 * src1 = internal::getRowPtr(src1Base, src1Stride, row);
+
+        size_t i = 0;
+        while(i + 4 <= size.width)
+        {
+            size_t lim = std::min(i + DOT_FLOAT_BLOCKSIZE, size.width) - 4;
+            float32x4_t v_sum = vdupq_n_f32(0.0f);
+
+            for( ; i <= lim; i += 4 )
+            {
+                internal::prefetch(src0 + i);
+                internal::prefetch(src1 + i);
+                v_sum = vmlaq_f32(v_sum, vld1q_f32(src0 + i), vld1q_f32(src1 + i));
+            }
+
+            float32x2_t vres = vpadd_f32(vget_low_f32(v_sum),vget_high_f32(v_sum));
+            result += vget_lane_f32(vres, 0) + vget_lane_f32(vres, 1);
+        }
+
+        if(i + 2 <= size.width)
+        {
+            float32x2_t vres = vmul_f32(vld1_f32(src0 + i), vld1_f32(src1 + i));
+            result += vget_lane_f32(vres, 0) + vget_lane_f32(vres, 1);
+            i += 2;
+        }
+
+        for (; i < size.width; ++i)
+            result += src0[i] * src1[i];
+    }
+    return result;
+#else
+    (void)_size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+
+    return 0;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/dummy.cpp

@@ -0,0 +1,2 @@
+// This file is needed for compilation on some platforms e.g. with XCode generator
+// Related issue: https://gitlab.kitware.com/cmake/cmake/-/issues/17457

libs/opencv/3rdparty/carotene/src/fast.cpp

@@ -0,0 +1,428 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+
+/* This is FAST corner detector, contributed to OpenCV by the author, Edward Rosten.
+   Below is the original copyright and the references */
+
+/*
+Copyright (c) 2006, 2008 Edward Rosten
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ *Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+ *Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+
+ *Neither the name of the University of Cambridge nor the names of
+  its contributors may be used to endorse or promote products derived
+  from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+The references are:
+ * Machine learning for high-speed corner detection,
+   E. Rosten and T. Drummond, ECCV 2006
+ * Faster and better: A machine learning approach to corner detection
+   E. Rosten, R. Porter and T. Drummond, PAMI, 2009
+*/
+
+#include "common.hpp"
+
+#include <vector>
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+namespace
+{
+
+void makeOffsets(ptrdiff_t pixel[], ptrdiff_t row_stride)
+{
+    pixel[0] = 0 + row_stride * 3;
+    pixel[1] = 1 + row_stride * 3;
+    pixel[2] = 2 + row_stride * 2;
+    pixel[3] = 3 + row_stride * 1;
+    pixel[4] = 3 + row_stride * 0;
+    pixel[5] = 3 + row_stride * -1;
+    pixel[6] = 2 + row_stride * -2;
+    pixel[7] = 1 + row_stride * -3;
+    pixel[8] = 0 + row_stride * -3;
+    pixel[9] = -1 + row_stride * -3;
+    pixel[10] = -2 + row_stride * -2;
+    pixel[11] = -3 + row_stride * -1;
+    pixel[12] = -3 + row_stride * 0;
+    pixel[13] = -3 + row_stride * 1;
+    pixel[14] = -2 + row_stride * 2;
+    pixel[15] = -1 + row_stride * 3;
+}
+
+u8 cornerScore(const u8* ptr, const ptrdiff_t pixel[])
+{
+    const s32 K = 8, N = 16 + K + 1;
+    s32 k, v = ptr[0];
+    s16 d[(N + 7) & ~7];
+    for( k = 0; k < N; k++ )
+        d[k] = (s16)(v - ptr[pixel[k]]);
+
+    int16x8_t q0 = vdupq_n_s16((s16)(-1000));
+    int16x8_t q1 = vdupq_n_s16((s16)(1000));
+
+    int16x8_t d0_7   = vld1q_s16(d +  0);
+    int16x8_t d8_15  = vld1q_s16(d +  8);
+    int16x8_t d16_23 = vld1q_s16(d + 16);
+    int16x8_t d24    = vld1q_s16(d + 24);
+
+    //k == 0
+    int16x8_t v0k0 = vextq_s16(d0_7, d8_15, 1);
+    int16x8_t v1k0 = vextq_s16(d0_7, d8_15, 2);
+    int16x8_t ak0 = vminq_s16(v0k0, v1k0);
+    int16x8_t bk0 = vmaxq_s16(v0k0, v1k0);
+
+    v0k0 = vextq_s16(d0_7, d8_15, 3);
+    ak0 = vminq_s16(ak0, v0k0);
+    bk0 = vmaxq_s16(bk0, v0k0);
+
+    v1k0 = vextq_s16(d0_7, d8_15, 4);
+    ak0 = vminq_s16(ak0, v1k0);
+    bk0 = vmaxq_s16(bk0, v1k0);
+
+    v0k0 = vextq_s16(d0_7, d8_15, 5);
+    ak0 = vminq_s16(ak0, v0k0);
+    bk0 = vmaxq_s16(bk0, v0k0);
+
+    v1k0 = vextq_s16(d0_7, d8_15, 6);
+    ak0 = vminq_s16(ak0, v1k0);
+    bk0 = vmaxq_s16(bk0, v1k0);
+
+    v0k0 = vextq_s16(d0_7, d8_15, 7);
+    ak0 = vminq_s16(ak0, v0k0);
+    bk0 = vmaxq_s16(bk0, v0k0);
+
+    ak0 = vminq_s16(ak0, d8_15);
+    bk0 = vmaxq_s16(bk0, d8_15);
+
+    q0 = vmaxq_s16(q0, vminq_s16(ak0, d0_7));
+    q1 = vminq_s16(q1, vmaxq_s16(bk0, d0_7));
+
+    v1k0 = vextq_s16(d8_15, d16_23, 1);
+    q0 = vmaxq_s16(q0, vminq_s16(ak0, v1k0));
+    q1 = vminq_s16(q1, vmaxq_s16(bk0, v1k0));
+
+    //k == 8
+    int16x8_t v0k8 = v1k0;
+    int16x8_t v1k8 = vextq_s16(d8_15, d16_23, 2);
+    int16x8_t ak8 = vminq_s16(v0k8, v1k8);
+    int16x8_t bk8 = vmaxq_s16(v0k8, v1k8);
+
+    v0k8 = vextq_s16(d8_15, d16_23, 3);
+    ak8 = vminq_s16(ak8, v0k8);
+    bk8 = vmaxq_s16(bk8, v0k8);
+
+    v1k8 = vextq_s16(d8_15, d16_23, 4);
+    ak8 = vminq_s16(ak8, v1k8);
+    bk8 = vmaxq_s16(bk8, v1k8);
+
+    v0k8 = vextq_s16(d8_15, d16_23, 5);
+    ak8 = vminq_s16(ak8, v0k8);
+    bk8 = vmaxq_s16(bk8, v0k8);
+
+    v1k8 = vextq_s16(d8_15, d16_23, 6);
+    ak8 = vminq_s16(ak8, v1k8);
+    bk8 = vmaxq_s16(bk8, v1k8);
+
+    v0k8 = vextq_s16(d8_15, d16_23, 7);
+    ak8 = vminq_s16(ak8, v0k8);
+    bk8 = vmaxq_s16(bk8, v0k8);
+
+    ak8 = vminq_s16(ak8, d16_23);
+    bk8 = vmaxq_s16(bk8, d16_23);
+
+    q0 = vmaxq_s16(q0, vminq_s16(ak8, d8_15));
+    q1 = vminq_s16(q1, vmaxq_s16(bk8, d8_15));
+
+    v1k8 = vextq_s16(d16_23, d24, 1);
+    q0 = vmaxq_s16(q0, vminq_s16(ak8, v1k8));
+    q1 = vminq_s16(q1, vmaxq_s16(bk8, v1k8));
+
+    //fin
+    int16x8_t q = vmaxq_s16(q0, vsubq_s16(vmovq_n_s16(0), q1));
+    int16x4_t q2 = vmax_s16(vget_low_s16(q), vget_high_s16(q));
+    int32x4_t q2w = vmovl_s16(q2);
+    int32x2_t q4 = vmax_s32(vget_low_s32(q2w), vget_high_s32(q2w));
+    int32x2_t q8 = vmax_s32(q4, vreinterpret_s32_s64(vshr_n_s64(vreinterpret_s64_s32(q4), 32)));
+
+    return (u8)(vget_lane_s32(q8, 0) - 1);
+}
+
+} //namespace
+#endif
+
+void FAST(const Size2D &size,
+          u8 *srcBase, ptrdiff_t srcStride,
+          KeypointStore *keypoints,
+          u8 threshold, bool nonmax_suppression)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    //keypoints.clear();
+
+    const s32 K = 8, N = 16 + K + 1;
+    ptrdiff_t i, j, k, pixel[N];
+    makeOffsets(pixel, srcStride);
+    for(k = 16; k < N; k++)
+        pixel[k] = pixel[k - 16];
+
+    uint8x16_t delta = vdupq_n_u8(128);
+    uint8x16_t t = vdupq_n_u8(threshold);
+    uint8x16_t K16 = vdupq_n_u8((u8)K);
+
+    u8 threshold_tab[512];
+    for( i = -255; i <= 255; i++ )
+        threshold_tab[i+255] = (u8)(i < -threshold ? 1 : i > threshold ? 2 : 0);
+
+    std::vector<u8> _buf((size.width+16)*3*(sizeof(ptrdiff_t) + sizeof(u8)) + 128);
+    u8* buf[3];
+    buf[0] = &_buf[0]; buf[1] = buf[0] + size.width; buf[2] = buf[1] + size.width;
+    ptrdiff_t* cpbuf[3];
+    cpbuf[0] = (ptrdiff_t*)internal::alignPtr(buf[2] + size.width, sizeof(ptrdiff_t)) + 1;
+    cpbuf[1] = cpbuf[0] + size.width + 1;
+    cpbuf[2] = cpbuf[1] + size.width + 1;
+    memset(buf[0], 0, size.width*3);
+
+    for(i = 3; i < (ptrdiff_t)size.height-2; i++)
+    {
+        const u8* ptr = internal::getRowPtr(srcBase, srcStride, i) + 3;
+        u8* curr = buf[(i - 3)%3];
+        ptrdiff_t* cornerpos = cpbuf[(i - 3)%3];
+        memset(curr, 0, size.width);
+        ptrdiff_t ncorners = 0;
+
+        if( i < (ptrdiff_t)size.height - 3 )
+        {
+            j = 3;
+
+            for(; j < (ptrdiff_t)size.width - 16 - 3; j += 16, ptr += 16)
+            {
+                internal::prefetch(ptr);
+                internal::prefetch(ptr + pixel[0]);
+                internal::prefetch(ptr + pixel[2]);
+
+                uint8x16_t v0 = vld1q_u8(ptr);
+                int8x16_t v1 = vreinterpretq_s8_u8(veorq_u8(vqsubq_u8(v0, t), delta));
+                int8x16_t v2 = vreinterpretq_s8_u8(veorq_u8(vqaddq_u8(v0, t), delta));
+
+                int8x16_t x0 = vreinterpretq_s8_u8(vsubq_u8(vld1q_u8(ptr + pixel[0]), delta));
+                int8x16_t x1 = vreinterpretq_s8_u8(vsubq_u8(vld1q_u8(ptr + pixel[4]), delta));
+                int8x16_t x2 = vreinterpretq_s8_u8(vsubq_u8(vld1q_u8(ptr + pixel[8]), delta));
+                int8x16_t x3 = vreinterpretq_s8_u8(vsubq_u8(vld1q_u8(ptr + pixel[12]), delta));
+
+                uint8x16_t m0 =   vandq_u8(vcgtq_s8(x0, v2), vcgtq_s8(x1, v2));
+                uint8x16_t m1 =   vandq_u8(vcgtq_s8(v1, x0), vcgtq_s8(v1, x1));
+                m0 = vorrq_u8(m0, vandq_u8(vcgtq_s8(x1, v2), vcgtq_s8(x2, v2)));
+                m1 = vorrq_u8(m1, vandq_u8(vcgtq_s8(v1, x1), vcgtq_s8(v1, x2)));
+                m0 = vorrq_u8(m0, vandq_u8(vcgtq_s8(x2, v2), vcgtq_s8(x3, v2)));
+                m1 = vorrq_u8(m1, vandq_u8(vcgtq_s8(v1, x2), vcgtq_s8(v1, x3)));
+                m0 = vorrq_u8(m0, vandq_u8(vcgtq_s8(x3, v2), vcgtq_s8(x0, v2)));
+                m1 = vorrq_u8(m1, vandq_u8(vcgtq_s8(v1, x3), vcgtq_s8(v1, x0)));
+                m0 = vorrq_u8(m0, m1);
+
+                u64 mask[2];
+                vst1q_u64(mask, vreinterpretq_u64_u8(m0));
+
+                if( mask[0] == 0 )
+                {
+                    if (mask[1] != 0)
+                    {
+                        j -= 8;
+                        ptr -= 8;
+                    }
+                    continue;
+                }
+
+                uint8x16_t c0 = vmovq_n_u8(0);
+                uint8x16_t c1 = vmovq_n_u8(0);
+                uint8x16_t max0 = vmovq_n_u8(0);
+                uint8x16_t max1 = vmovq_n_u8(0);
+                for( k = 0; k < N; k++ )
+                {
+                    int8x16_t x = vreinterpretq_s8_u8(veorq_u8(vld1q_u8(ptr + pixel[k]), delta));
+                    m0 = vcgtq_s8(x, v2);
+                    m1 = vcgtq_s8(v1, x);
+
+                    c0 = vandq_u8(vsubq_u8(c0, m0), m0);
+                    c1 = vandq_u8(vsubq_u8(c1, m1), m1);
+
+                    max0 = vmaxq_u8(max0, c0);
+                    max1 = vmaxq_u8(max1, c1);
+                }
+
+                max0 = vmaxq_u8(max0, max1);
+                u8 m[16];
+                vst1q_u8(m, vcgtq_u8(max0, K16));
+
+                for( k = 0; k < 16; ++k )
+                    if(m[k])
+                    {
+                        cornerpos[ncorners++] = j+k;
+                        if(nonmax_suppression)
+                            curr[j+k] = cornerScore(ptr+k, pixel);
+                    }
+            }
+
+            for( ; j < (s32)size.width - 3; j++, ptr++ )
+            {
+                s32 v = ptr[0];
+                const u8* tab = &threshold_tab[0] - v + 255;
+                s32 d = tab[ptr[pixel[0]]] | tab[ptr[pixel[8]]];
+
+                if( d == 0 )
+                    continue;
+
+                d &= tab[ptr[pixel[2]]] | tab[ptr[pixel[10]]];
+                d &= tab[ptr[pixel[4]]] | tab[ptr[pixel[12]]];
+                d &= tab[ptr[pixel[6]]] | tab[ptr[pixel[14]]];
+
+                if( d == 0 )
+                    continue;
+
+                d &= tab[ptr[pixel[1]]] | tab[ptr[pixel[9]]];
+                d &= tab[ptr[pixel[3]]] | tab[ptr[pixel[11]]];
+                d &= tab[ptr[pixel[5]]] | tab[ptr[pixel[13]]];
+                d &= tab[ptr[pixel[7]]] | tab[ptr[pixel[15]]];
+
+                if( d & 1 )
+                {
+                    s32 vt = v - threshold, count = 0;
+
+                    for( k = 0; k < N; k++ )
+                    {
+                        s32 x = ptr[pixel[k]];
+                        if(x < vt)
+                        {
+                            if( ++count > K )
+                            {
+                                cornerpos[ncorners++] = j;
+                                if(nonmax_suppression)
+                                    curr[j] = cornerScore(ptr, pixel);
+                                break;
+                            }
+                        }
+                        else
+                            count = 0;
+                    }
+                }
+
+                if( d & 2 )
+                {
+                    s32 vt = v + threshold, count = 0;
+
+                    for( k = 0; k < N; k++ )
+                    {
+                        s32 x = ptr[pixel[k]];
+                        if(x > vt)
+                        {
+                            if( ++count > K )
+                            {
+                                cornerpos[ncorners++] = j;
+                                if(nonmax_suppression)
+                                    curr[j] = cornerScore(ptr, pixel);
+                                break;
+                            }
+                        }
+                        else
+                            count = 0;
+                    }
+                }
+            }
+        }
+
+        cornerpos[-1] = ncorners;
+
+        if( i == 3 )
+            continue;
+
+        const u8* prev = buf[(i - 4 + 3)%3];
+        const u8* pprev = buf[(i - 5 + 3)%3];
+        cornerpos = cpbuf[(i - 4 + 3)%3];
+        ncorners = cornerpos[-1];
+
+        for( k = 0; k < ncorners; k++ )
+        {
+            j = cornerpos[k];
+            s32 score = prev[j];
+            if( !nonmax_suppression ||
+                    (score > prev[j+1] && score > prev[j-1] &&
+                     score > pprev[j-1] && score > pprev[j] && score > pprev[j+1] &&
+                     score > curr[j-1] && score > curr[j] && score > curr[j+1]) )
+            {
+                keypoints->push((f32)j, (f32)(i-1), 7.f, -1, (f32)score);
+            }
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)keypoints;
+    (void)threshold;
+    (void)nonmax_suppression;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/fill_minmaxloc.cpp

@@ -0,0 +1,442 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <typename T>
+void process(const T * src, size_t j0, size_t j1, size_t i,
+             T minVal, size_t * minLocPtr, s32 & minLocCount, s32 minLocCapacity,
+             T maxVal, size_t * maxLocPtr, s32 & maxLocCount, s32 maxLocCapacity)
+{
+    for (size_t j = j0; j < j1; ++j)
+    {
+        T val = src[j];
+
+        if (val == maxVal)
+        {
+            if (maxLocCount < maxLocCapacity)
+            {
+                maxLocPtr[maxLocCount] = j;
+                maxLocPtr[maxLocCount + 1] = i;
+            }
+            maxLocCount += 2;
+        }
+
+        if (val == minVal)
+        {
+            if (minLocCount < minLocCapacity)
+            {
+                minLocPtr[minLocCount] = j;
+                minLocPtr[minLocCount + 1] = i;
+            }
+            minLocCount += 2;
+        }
+    }
+}
+
+} // namespace
+
+#endif
+
+void fillMinMaxLocs(const Size2D & size,
+                    const u8 * srcBase, ptrdiff_t srcStride,
+                    u8 minVal, size_t * minLocPtr, s32 & minLocCount, s32 minLocCapacity,
+                    u8 maxVal, size_t * maxLocPtr, s32 & maxLocCount, s32 maxLocCapacity)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    uint8x16_t v_maxval16 = vdupq_n_u8(maxVal), v_minval16 = vdupq_n_u8(minVal);
+    uint8x8_t v_maxval8 = vdup_n_u8(maxVal), v_minval8 = vdup_n_u8(minVal);
+
+    u64 mask[2] = { 0ul };
+
+    minLocCapacity <<= 1;
+    maxLocCapacity <<= 1;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0;
+
+        for ( ; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            uint8x16_t v_src = vld1q_u8(src + j);
+
+            uint8x16_t v_maxmask = vceqq_u8(v_src, v_maxval16);
+            uint8x16_t v_minmask = vceqq_u8(v_src, v_minval16);
+            uint8x16_t v_mask = vorrq_u8(v_maxmask, v_minmask);
+
+            vst1q_u8((u8 *)&mask[0], v_mask);
+
+            if (mask[0])
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+            if (mask[1])
+                process(src, j + 8, j + 16, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+        for ( ; j < roiw8; j += 8)
+        {
+            uint8x8_t v_src = vld1_u8(src + j);
+
+            uint8x8_t v_maxmask = vceq_u8(v_src, v_maxval8);
+            uint8x8_t v_minmask = vceq_u8(v_src, v_minval8);
+            uint8x8_t v_mask = vorr_u8(v_maxmask, v_minmask);
+
+            vst1_u8((u8 *)&mask[0], v_mask);
+
+            if (mask[0])
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+
+        process(src, j, size.width, i,
+                minVal, minLocPtr, minLocCount, minLocCapacity,
+                maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+    }
+
+    minLocCount >>= 1;
+    maxLocCount >>= 1;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)minVal;
+    (void)minLocPtr;
+    (void)minLocCount;
+    (void)minLocCapacity;
+    (void)maxVal;
+    (void)maxLocPtr;
+    (void)maxLocCount;
+    (void)maxLocCapacity;
+#endif
+}
+
+void fillMinMaxLocs(const Size2D & size,
+                    const u16 * srcBase, ptrdiff_t srcStride,
+                    u16 minVal, size_t * minLocPtr, s32 & minLocCount, s32 minLocCapacity,
+                    u16 maxVal, size_t * maxLocPtr, s32 & maxLocCount, s32 maxLocCapacity)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    uint16x8_t v_maxval8 = vdupq_n_u16(maxVal),
+               v_minval8 = vdupq_n_u16(minVal);
+    u64 mask[2] = { 0ul };
+
+    minLocCapacity <<= 1;
+    maxLocCapacity <<= 1;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u16 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0;
+
+        for ( ; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            uint16x8_t v_src0 = vld1q_u16(src + j), v_src1 = vld1q_u16(src + j + 8);
+
+            uint16x8_t v_mask0 = vorrq_u16(vceqq_u16(v_src0, v_maxval8), vceqq_u16(v_src0, v_minval8));
+            uint16x8_t v_mask1 = vorrq_u16(vceqq_u16(v_src1, v_maxval8), vceqq_u16(v_src1, v_minval8));
+
+            vst1q_u8((u8 *)&mask[0], vcombine_u8(vmovn_u16(v_mask0), vmovn_u16(v_mask1)));
+
+            if (mask[0])
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+            if (mask[1])
+                process(src, j + 8, j + 16, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+        for ( ; j < roiw8; j += 8)
+        {
+            internal::prefetch(src + j);
+            uint16x8_t v_src = vld1q_u16(src + j);
+
+            uint16x8_t v_maxmask = vceqq_u16(v_src, v_maxval8);
+            uint16x8_t v_minmask = vceqq_u16(v_src, v_minval8);
+            uint16x8_t v_mask = vorrq_u16(v_maxmask, v_minmask);
+
+            vst1_u8((u8 *)&mask[0], vmovn_u16(v_mask));
+
+            if (mask[0])
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+
+        process(src, j, size.width, i,
+                minVal, minLocPtr, minLocCount, minLocCapacity,
+                maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+    }
+
+    minLocCount >>= 1;
+    maxLocCount >>= 1;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)minVal;
+    (void)minLocPtr;
+    (void)minLocCount;
+    (void)minLocCapacity;
+    (void)maxVal;
+    (void)maxLocPtr;
+    (void)maxLocCount;
+    (void)maxLocCapacity;
+#endif
+}
+
+void fillMinMaxLocs(const Size2D & size,
+                    const s16 * srcBase, ptrdiff_t srcStride,
+                    s16 minVal, size_t * minLocPtr, s32 & minLocCount, s32 minLocCapacity,
+                    s16 maxVal, size_t * maxLocPtr, s32 & maxLocCount, s32 maxLocCapacity)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    int16x8_t v_maxval8 = vdupq_n_s16(maxVal),
+              v_minval8 = vdupq_n_s16(minVal);
+    u64 mask[2] = { 0ul };
+
+    minLocCapacity <<= 1;
+    maxLocCapacity <<= 1;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const s16 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0;
+
+        for ( ; j < roiw16; j += 16)
+        {
+            internal::prefetch(src + j);
+            int16x8_t v_src0 = vld1q_s16(src + j), v_src1 = vld1q_s16(src + j + 8);
+
+            uint16x8_t v_mask0 = vorrq_u16(vceqq_s16(v_src0, v_maxval8), vceqq_s16(v_src0, v_minval8));
+            uint16x8_t v_mask1 = vorrq_u16(vceqq_s16(v_src1, v_maxval8), vceqq_s16(v_src1, v_minval8));
+
+            vst1q_u8((u8 *)&mask[0], vcombine_u8(vmovn_u16(v_mask0), vmovn_u16(v_mask1)));
+
+            if (mask[0])
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+            if (mask[1])
+                process(src, j + 8, j + 16, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+        for ( ; j < roiw8; j += 8)
+        {
+            internal::prefetch(src + j);
+            int16x8_t v_src = vld1q_s16(src + j);
+
+            uint16x8_t v_maxmask = vceqq_s16(v_src, v_maxval8);
+            uint16x8_t v_minmask = vceqq_s16(v_src, v_minval8);
+            uint16x8_t v_mask = vorrq_u16(v_maxmask, v_minmask);
+
+            vst1_u8((u8 *)&mask[0], vmovn_u16(v_mask));
+
+            if (mask[0])
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+
+        process(src, j, size.width, i,
+                minVal, minLocPtr, minLocCount, minLocCapacity,
+                maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+    }
+
+    minLocCount >>= 1;
+    maxLocCount >>= 1;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)minVal;
+    (void)minLocPtr;
+    (void)minLocCount;
+    (void)minLocCapacity;
+    (void)maxVal;
+    (void)maxLocPtr;
+    (void)maxLocCount;
+    (void)maxLocCapacity;
+#endif
+}
+
+void fillMinMaxLocs(const Size2D & size,
+                    const s32 * srcBase, ptrdiff_t srcStride,
+                    s32 minVal, size_t * minLocPtr, s32 & minLocCount, s32 minLocCapacity,
+                    s32 maxVal, size_t * maxLocPtr, s32 & maxLocCount, s32 maxLocCapacity)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    int32x4_t v_maxval4 = vdupq_n_s32(maxVal),
+              v_minval4 = vdupq_n_s32(minVal);
+    u64 mask = 0ul;
+
+    minLocCapacity <<= 1;
+    maxLocCapacity <<= 1;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const s32 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0;
+
+        for ( ; j < roiw8; j += 8)
+        {
+            internal::prefetch(src + j);
+            int32x4_t v_src0 = vld1q_s32(src + j), v_src1 = vld1q_s32(src + j + 4);
+
+            uint32x4_t v_mask0 = vorrq_u32(vceqq_s32(v_src0, v_maxval4), vceqq_s32(v_src0, v_minval4));
+            uint32x4_t v_mask1 = vorrq_u32(vceqq_s32(v_src1, v_maxval4), vceqq_s32(v_src1, v_minval4));
+
+            vst1_u8((u8 *)&mask, vmovn_u16(vcombine_u16(vmovn_u32(v_mask0), vmovn_u32(v_mask1))));
+
+            if (mask)
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+
+        process(src, j, size.width, i,
+                minVal, minLocPtr, minLocCount, minLocCapacity,
+                maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+    }
+
+    minLocCount >>= 1;
+    maxLocCount >>= 1;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)minVal;
+    (void)minLocPtr;
+    (void)minLocCount;
+    (void)minLocCapacity;
+    (void)maxVal;
+    (void)maxLocPtr;
+    (void)maxLocCount;
+    (void)maxLocCapacity;
+#endif
+}
+
+void fillMinMaxLocs(const Size2D & size,
+                    const u32 * srcBase, ptrdiff_t srcStride,
+                    u32 minVal, size_t * minLocPtr, s32 & minLocCount, s32 minLocCapacity,
+                    u32 maxVal, size_t * maxLocPtr, s32 & maxLocCount, s32 maxLocCapacity)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    uint32x4_t v_maxval4 = vdupq_n_u32(maxVal),
+               v_minval4 = vdupq_n_u32(minVal);
+    u64 mask = 0ul;
+
+    minLocCapacity <<= 1;
+    maxLocCapacity <<= 1;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u32 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0;
+
+        for ( ; j < roiw8; j += 8)
+        {
+            internal::prefetch(src + j);
+            uint32x4_t v_src0 = vld1q_u32(src + j), v_src1 = vld1q_u32(src + j + 4);
+
+            uint32x4_t v_mask0 = vorrq_u32(vceqq_u32(v_src0, v_maxval4), vceqq_u32(v_src0, v_minval4));
+            uint32x4_t v_mask1 = vorrq_u32(vceqq_u32(v_src1, v_maxval4), vceqq_u32(v_src1, v_minval4));
+
+            vst1_u8((u8 *)&mask, vmovn_u16(vcombine_u16(vmovn_u32(v_mask0), vmovn_u32(v_mask1))));
+
+            if (mask)
+                process(src, j, j + 8, i,
+                        minVal, minLocPtr, minLocCount, minLocCapacity,
+                        maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+        }
+
+        process(src, j, size.width, i,
+                minVal, minLocPtr, minLocCount, minLocCapacity,
+                maxVal, maxLocPtr, maxLocCount, maxLocCapacity);
+    }
+
+    minLocCount >>= 1;
+    maxLocCount >>= 1;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)minVal;
+    (void)minLocPtr;
+    (void)minLocCount;
+    (void)minLocCapacity;
+    (void)maxVal;
+    (void)maxLocPtr;
+    (void)maxLocCount;
+    (void)maxLocCapacity;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/flip.cpp

@@ -0,0 +1,222 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+bool isFlipSupported(FLIP_MODE flipMode, u32 elemSize)
+{
+    bool supportedElemSize = (elemSize == 1) || (elemSize == 2) || (elemSize == 3) || (elemSize == 4);
+    return isSupportedConfiguration() &&
+            ((supportedElemSize && ((flipMode == FLIP_BOTH_MODE) || (flipMode == FLIP_HORIZONTAL_MODE))) ||
+             (flipMode == FLIP_VERTICAL_MODE));
+}
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <typename T>
+void flip(const Size2D & size,
+          const void * srcBase, ptrdiff_t srcStride,
+          void * dstBase, ptrdiff_t dstStride,
+          FLIP_MODE flipMode)
+{
+    using namespace internal;
+
+    typedef typename VecTraits<T>::vec128 vec128;
+    typedef typename VecTraits<T>::vec64 vec64;
+
+    u32 step_base = 16 / sizeof(T), step_tail = 8 / sizeof(T);
+    size_t roiw_base = size.width >= (step_base - 1) ? size.width - step_base + 1 : 0;
+    size_t roiw_tail = size.width >= (step_tail - 1) ? size.width - step_tail + 1 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const T * src = getRowPtr((const T *)srcBase, srcStride, i);
+        T * dst = getRowPtr((T *)dstBase, dstStride, (flipMode & FLIP_VERTICAL_MODE) != 0 ? size.height - i - 1 : i);
+        size_t js = 0, jd = size.width;
+
+        for (; js < roiw_base; js += step_base, jd -= step_base)
+        {
+            prefetch(src + js);
+
+            vec128 v_src = vld1q(src + js);
+            vec128 v_dst = vrev64q(v_src);
+            v_dst = vcombine(vget_high(v_dst), vget_low(v_dst));
+            vst1q(dst + jd - step_base, v_dst);
+        }
+        for (; js < roiw_tail; js += step_tail, jd -= step_tail)
+        {
+            vec64 v_src = vld1(src + js);
+            vst1(dst + jd - step_tail, vrev64(v_src));
+        }
+
+        for (--jd; js < size.width; ++js, --jd)
+            dst[jd] = src[js];
+    }
+}
+
+template <typename T>
+void flip3(const Size2D & size,
+           const void * srcBase, ptrdiff_t srcStride,
+           void * dstBase, ptrdiff_t dstStride,
+           FLIP_MODE flipMode)
+{
+    using namespace internal;
+
+#ifndef __ANDROID__
+    typedef typename VecTraits<T, 3>::vec128 vec128;
+#endif
+    typedef typename VecTraits<T, 3>::vec64 vec64;
+
+#ifndef __ANDROID__
+    u32 step_base = 16 / sizeof(T), step_base3 = step_base * 3;
+    size_t roiw_base = size.width >= (step_base - 1) ? size.width - step_base + 1 : 0;
+#endif
+    u32 step_tail = 8 / sizeof(T), step_tail3 = step_tail * 3;
+    size_t roiw_tail = size.width >= (step_tail - 1) ? size.width - step_tail + 1 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const T * src = getRowPtr((const T *)srcBase, srcStride, i);
+        T * dst = getRowPtr((T *)dstBase, dstStride, (flipMode & FLIP_VERTICAL_MODE) != 0 ? size.height - i - 1 : i);
+        size_t j = 0, js = 0, jd = size.width * 3;
+
+#ifndef __ANDROID__
+        for (; j < roiw_base; j += step_base, js += step_base3, jd -= step_base3)
+        {
+            prefetch(src + js);
+
+            vec128 v_src = vld3q(src + js), v_dst;
+            v_src.val[0] = vrev64q(v_src.val[0]);
+            v_src.val[1] = vrev64q(v_src.val[1]);
+            v_src.val[2] = vrev64q(v_src.val[2]);
+
+            v_dst.val[0] = vcombine(vget_high(v_src.val[0]), vget_low(v_src.val[0]));
+            v_dst.val[1] = vcombine(vget_high(v_src.val[1]), vget_low(v_src.val[1]));
+            v_dst.val[2] = vcombine(vget_high(v_src.val[2]), vget_low(v_src.val[2]));
+
+            vst3q(dst + jd - step_base3, v_dst);
+        }
+#endif // __ANDROID__
+
+        for (; j < roiw_tail; j += step_tail, js += step_tail3, jd -= step_tail3)
+        {
+            vec64 v_src = vld3(src + js), v_dst;
+            v_dst.val[0] = vrev64(v_src.val[0]);
+            v_dst.val[1] = vrev64(v_src.val[1]);
+            v_dst.val[2] = vrev64(v_src.val[2]);
+
+            vst3(dst + jd - step_tail3, v_dst);
+        }
+
+        for (jd -= 3; j < size.width; ++j, js += 3, jd -= 3)
+        {
+            dst[jd] = src[js];
+            dst[jd + 1] = src[js + 1];
+            dst[jd + 2] = src[js + 2];
+        }
+    }
+}
+
+typedef void (* flipFunc)(const Size2D &size,
+                  const void * srcBase, ptrdiff_t srcStride,
+                  void * dstBase, ptrdiff_t dstStride,
+                  FLIP_MODE flipMode);
+
+} // namespace
+
+#endif
+
+void flip(const Size2D &size,
+          const u8 * srcBase, ptrdiff_t srcStride,
+          u8 * dstBase, ptrdiff_t dstStride,
+          FLIP_MODE flipMode, u32 elemSize)
+{
+    internal::assertSupportedConfiguration(isFlipSupported(flipMode, elemSize));
+#ifdef CAROTENE_NEON
+
+    if (flipMode == FLIP_VERTICAL_MODE)
+    {
+        for (size_t y = 0; y < size.height; ++y)
+        {
+            const u8 * src_row = internal::getRowPtr(srcBase, srcStride, y);
+            u8 * dst_row = internal::getRowPtr(dstBase, dstStride, size.height - y - 1);
+
+            std::memcpy(dst_row, src_row, elemSize * size.width);
+        }
+        return;
+    }
+
+    flipFunc func = NULL;
+
+    if (elemSize == (u32)sizeof(u8))
+        func = &flip<u8>;
+    if (elemSize == (u32)sizeof(u16))
+        func = &flip<u16>;
+    if (elemSize == (u32)sizeof(u32))
+        func = &flip<u32>;
+    if (elemSize == (u32)sizeof(u8) * 3)
+        func = &flip3<u8>;
+
+    if (func == NULL)
+        return;
+
+    func(size,
+         srcBase, srcStride,
+         dstBase, dstStride,
+         flipMode);
+
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)flipMode;
+    (void)elemSize;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/in_range.cpp

@@ -0,0 +1,195 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+inline void vnst(u8* dst, uint8x16_t v1, uint8x16_t v2) { vst1q_u8(dst, v1); vst1q_u8(dst+16, v2); }
+inline void vnst(u8* dst, uint16x8_t v1, uint16x8_t v2) { vst1q_u8(dst, vcombine_u8(vmovn_u16(v1), vmovn_u16(v2))); }
+inline void vnst(u8* dst, uint32x4_t v1, uint32x4_t v2) { vst1_u8(dst, vmovn_u16(vcombine_u16(vmovn_u32(v1), vmovn_u32(v2)))); }
+
+template <typename T, int elsize> struct vtail
+{
+    static inline void inRange(const T *, const T *, const T *,
+                               u8 *, size_t &, size_t)
+    {
+        //do nothing since there couldn't be enough data
+    }
+};
+template <typename T> struct vtail<T, 2>
+{
+    static inline void inRange(const T * src, const T * rng1, const T * rng2,
+                               u8 * dst, size_t &x, size_t width)
+    {
+        typedef typename internal::VecTraits<T>::vec128 vec128;
+        typedef typename internal::VecTraits<T>::unsign::vec128 uvec128;
+        //There no more than 15 elements in the tail, so we could handle 8 element vector only once
+        if( x + 8 < width)
+        {
+             vec128  vs = internal::vld1q( src + x);
+             vec128 vr1 = internal::vld1q(rng1 + x);
+             vec128 vr2 = internal::vld1q(rng2 + x);
+            uvec128  vd = internal::vandq(internal::vcgeq(vs, vr1), internal::vcgeq(vr2, vs));
+            internal::vst1(dst + x, internal::vmovn(vd));
+            x+=8;
+        }
+    }
+};
+template <typename T> struct vtail<T, 1>
+{
+    static inline void inRange(const T * src, const T * rng1, const T * rng2,
+                               u8 * dst, size_t &x, size_t width)
+    {
+        typedef typename internal::VecTraits<T>::vec128 vec128;
+        typedef typename internal::VecTraits<T>::unsign::vec128 uvec128;
+        typedef typename internal::VecTraits<T>::vec64 vec64;
+        typedef typename internal::VecTraits<T>::unsign::vec64 uvec64;
+        //There no more than 31 elements in the tail, so we could handle once 16+8 or 16 or 8 elements
+        if( x + 16 < width)
+        {
+             vec128  vs = internal::vld1q( src + x);
+             vec128 vr1 = internal::vld1q(rng1 + x);
+             vec128 vr2 = internal::vld1q(rng2 + x);
+            uvec128  vd = internal::vandq(internal::vcgeq(vs, vr1), internal::vcgeq(vr2, vs));
+            internal::vst1q(dst + x, vd);
+            x+=16;
+        }
+        if( x + 8 < width)
+        {
+             vec64  vs = internal::vld1( src + x);
+             vec64 vr1 = internal::vld1(rng1 + x);
+             vec64 vr2 = internal::vld1(rng2 + x);
+            uvec64  vd = internal::vand(internal::vcge(vs, vr1), internal::vcge(vr2, vs));
+            internal::vst1(dst + x, vd);
+            x+=8;
+        }
+    }
+};
+
+template <typename T>
+inline void inRangeCheck(const Size2D &_size,
+                         const T * srcBase, ptrdiff_t srcStride,
+                         const T * rng1Base, ptrdiff_t rng1Stride,
+                         const T * rng2Base, ptrdiff_t rng2Stride,
+                         u8 * dstBase, ptrdiff_t dstStride)
+{
+    typedef typename internal::VecTraits<T>::vec128 vec128;
+    typedef typename internal::VecTraits<T>::unsign::vec128 uvec128;
+
+    Size2D size(_size);
+    if (srcStride == dstStride &&
+        srcStride == rng1Stride &&
+        srcStride == rng2Stride &&
+        srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    const size_t width = size.width & ~( 32/sizeof(T) - 1 );
+
+    for(size_t j = 0; j < size.height; ++j)
+    {
+        const T *  src = internal::getRowPtr( srcBase,  srcStride, j);
+        const T * rng1 = internal::getRowPtr(rng1Base, rng1Stride, j);
+        const T * rng2 = internal::getRowPtr(rng2Base, rng2Stride, j);
+             u8 *  dst = internal::getRowPtr( dstBase,  dstStride, j);
+        size_t i = 0;
+        for( ; i < width; i += 32/sizeof(T) )
+        {
+            internal::prefetch(src + i);
+            internal::prefetch(rng1 + i);
+            internal::prefetch(rng2 + i);
+
+             vec128  vs = internal::vld1q( src + i);
+             vec128 vr1 = internal::vld1q(rng1 + i);
+             vec128 vr2 = internal::vld1q(rng2 + i);
+            uvec128 vd1 = internal::vandq(internal::vcgeq(vs, vr1), internal::vcgeq(vr2, vs));
+                     vs = internal::vld1q( src + i + 16/sizeof(T));
+                    vr1 = internal::vld1q(rng1 + i + 16/sizeof(T));
+                    vr2 = internal::vld1q(rng2 + i + 16/sizeof(T));
+            uvec128 vd2 = internal::vandq(internal::vcgeq(vs, vr1), internal::vcgeq(vr2, vs));
+            vnst(dst + i, vd1, vd2);
+        }
+        vtail<T, sizeof(T)>::inRange(src, rng1, rng2, dst, i, size.width);
+        for( ; i < size.width; i++ )
+            dst[i] = (u8)(-(rng1[i] <= src[i] && src[i] <= rng2[i]));
+    }
+}
+
+}
+
+#define INRANGEFUNC(T)                                       \
+void inRange(const Size2D &_size,                            \
+             const T * srcBase, ptrdiff_t srcStride,         \
+             const T * rng1Base, ptrdiff_t rng1Stride,       \
+             const T * rng2Base, ptrdiff_t rng2Stride,       \
+             u8 * dstBase, ptrdiff_t dstStride)              \
+{                                                            \
+    internal::assertSupportedConfiguration();                \
+    inRangeCheck(_size, srcBase, srcStride,                  \
+                 rng1Base, rng1Stride, rng2Base, rng2Stride, \
+                 dstBase, dstStride);                        \
+}
+#else
+#define INRANGEFUNC(T)                                       \
+void inRange(const Size2D &,                                 \
+             const T *, ptrdiff_t,                           \
+             const T *, ptrdiff_t,                           \
+             const T *, ptrdiff_t,                           \
+             u8 *, ptrdiff_t)                                \
+{                                                            \
+    internal::assertSupportedConfiguration();                \
+}
+#endif
+
+INRANGEFUNC(u8)
+INRANGEFUNC(s8)
+INRANGEFUNC(u16)
+INRANGEFUNC(s16)
+INRANGEFUNC(s32)
+INRANGEFUNC(f32)
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/integral.cpp

@@ -0,0 +1,238 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+void integral(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              u32 * sumBase, ptrdiff_t sumStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    uint32x4_t v_zero = vmovq_n_u32(0u);
+
+    // the first iteration
+    const u8 * src = internal::getRowPtr(srcBase, srcStride, 0);
+    u32 * sum = internal::getRowPtr(sumBase, sumStride, 0);
+
+    uint32x4_t prev = v_zero;
+    size_t j = 0u;
+
+    for ( ; j + 7 < size.width; j += 8)
+    {
+        internal::prefetch(sum + j);
+        internal::prefetch(src + j);
+
+        uint8x8_t el8shr0 = vld1_u8(src + j);
+        uint8x8_t el8shr1 = vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(el8shr0), 8));
+        uint8x8_t el8shr2 = vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(el8shr0), 16));
+        uint8x8_t el8shr3 = vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(el8shr0), 24));
+
+        uint16x8_t el8shr12 =  vaddl_u8(el8shr1, el8shr2);
+        uint16x8_t el8shr03 =  vaddl_u8(el8shr0, el8shr3);
+
+        uint16x8_t el8 = vaddq_u16(el8shr12, el8shr03);
+        uint16x4_t el4h = vadd_u16(vget_low_u16(el8), vget_high_u16(el8));
+
+        uint32x4_t vsuml = vaddw_u16(prev, vget_low_u16(el8));
+        uint32x4_t vsumh = vaddw_u16(prev, el4h);
+
+        vst1q_u32(sum + j, vsuml);
+        vst1q_u32(sum + j + 4, vsumh);
+
+        prev = vaddw_u16(prev, vdup_lane_u16(el4h, 3));
+    }
+
+    for (u32 v = vgetq_lane_u32(prev, 3); j < size.width; ++j)
+        sum[j] = (v += src[j]);
+
+    // the others
+    for (size_t i = 1; i < size.height ; ++i)
+    {
+        src = internal::getRowPtr(srcBase, srcStride, i);
+        u32 * prevSum = internal::getRowPtr(sumBase, sumStride, i - 1);
+        sum = internal::getRowPtr(sumBase, sumStride, i);
+
+        prev = v_zero;
+        j = 0u;
+
+        for ( ; j + 7 < size.width; j += 8)
+        {
+            internal::prefetch(sum + j);
+            internal::prefetch(src + j);
+
+            uint32x4_t vsuml = vld1q_u32(prevSum + j);
+            uint32x4_t vsumh = vld1q_u32(prevSum + j + 4);
+
+            uint8x8_t el8shr0 = vld1_u8(src + j);
+            uint8x8_t el8shr1 = vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(el8shr0), 8));
+            uint8x8_t el8shr2 = vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(el8shr0), 16));
+            uint8x8_t el8shr3 = vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(el8shr0), 24));
+
+            vsuml = vaddq_u32(vsuml, prev);
+            vsumh = vaddq_u32(vsumh, prev);
+
+            uint16x8_t el8shr12 =  vaddl_u8(el8shr1, el8shr2);
+            uint16x8_t el8shr03 =  vaddl_u8(el8shr0, el8shr3);
+
+            uint16x8_t el8 = vaddq_u16(el8shr12, el8shr03);
+            uint16x4_t el4h = vadd_u16(vget_low_u16(el8), vget_high_u16(el8));
+
+            vsuml = vaddw_u16(vsuml, vget_low_u16(el8));
+            vsumh = vaddw_u16(vsumh, el4h);
+
+            vst1q_u32(sum + j, vsuml);
+            vst1q_u32(sum + j + 4, vsumh);
+
+            prev = vaddw_u16(prev, vdup_lane_u16(el4h, 3));
+        }
+
+        for (u32 v = vgetq_lane_u32(prev, 3); j < size.width; ++j)
+            sum[j] = (v += src[j]) + prevSum[j];
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)sumBase;
+    (void)sumStride;
+#endif
+}
+
+void sqrIntegral(const Size2D &size,
+                 const u8 * srcBase, ptrdiff_t srcStride,
+                 f64 * sqsumBase, ptrdiff_t sqsumStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    uint16x8_t v_zero8 = vmovq_n_u16(0u);
+
+    // the first iteration
+    const u8 * src = internal::getRowPtr(srcBase, srcStride, 0);
+    f64 * sqsum = internal::getRowPtr(sqsumBase, sqsumStride, 0);
+
+    double prev = 0.;
+    size_t j = 0u;
+
+    for ( ; j + 7 < size.width; j += 8)
+    {
+        internal::prefetch(sqsum + j);
+        internal::prefetch(src + j);
+
+        uint8x8_t vsrc = vld1_u8(src + j);
+
+        uint16x8_t el8shr0 = vmull_u8(vsrc, vsrc);
+        uint16x8_t el8shr1 = vextq_u16(v_zero8, el8shr0, 7);
+
+        uint32x4_t el8shr01l =  vaddl_u16(vget_low_u16(el8shr0), vget_low_u16(el8shr1));
+        uint32x4_t el8shr01h =  vaddl_u16(vget_high_u16(el8shr0), vget_high_u16(el8shr1));
+
+        uint32x4_t el4h = vaddq_u32(el8shr01l, el8shr01h);
+
+        uint32x2_t el2l = vadd_u32(vget_low_u32(el8shr01l), vget_high_u32(el8shr01l));
+        uint32x2_t el2hl = vadd_u32(vget_low_u32(el4h), vget_high_u32(el8shr01l));
+        uint32x2_t el2hh = vadd_u32(vget_low_u32(el4h), vget_high_u32(el4h));
+
+        u32 buf[8];
+        vst1_u32(buf, vget_low_u32(el8shr01l));
+        vst1_u32(buf+2, el2l);
+        vst1_u32(buf+4, el2hl);
+        vst1_u32(buf+6, el2hh);
+        for(u32 k=0; k < 8; k++)
+            sqsum[j+k] = prev + buf[k];
+        prev += buf[7];
+    }
+
+    for (; j < size.width; ++j)
+        sqsum[j] = (prev += src[j]*src[j]);
+
+    // the others
+    for (size_t i = 1; i < size.height ; ++i)
+    {
+        src = internal::getRowPtr(srcBase, srcStride, i);
+        f64 * prevSqSum = internal::getRowPtr(sqsumBase, sqsumStride, i - 1);
+        sqsum = internal::getRowPtr(sqsumBase, sqsumStride, i);
+
+        prev = 0.;
+        j = 0u;
+
+        for ( ; j + 7 < size.width; j += 8)
+        {
+            internal::prefetch(sqsum + j);
+            internal::prefetch(src + j);
+
+            uint8x8_t vsrc = vld1_u8(src + j);
+
+            uint16x8_t el8shr0 = vmull_u8(vsrc, vsrc);
+            uint16x8_t el8shr1 = vextq_u16(v_zero8, el8shr0, 7);
+
+            uint32x4_t el8shr01l =  vaddl_u16(vget_low_u16(el8shr0), vget_low_u16(el8shr1));
+            uint32x4_t el8shr01h =  vaddl_u16(vget_high_u16(el8shr0), vget_high_u16(el8shr1));
+
+            uint32x4_t el4h = vaddq_u32(el8shr01l, el8shr01h);
+
+            uint32x2_t el2l = vadd_u32(vget_low_u32(el8shr01l), vget_high_u32(el8shr01l));
+            uint32x2_t el2hl = vadd_u32(vget_low_u32(el4h), vget_high_u32(el8shr01l));
+            uint32x2_t el2hh = vadd_u32(vget_low_u32(el4h), vget_high_u32(el4h));
+
+            u32 buf[8];
+            vst1_u32(buf, vget_low_u32(el8shr01l));
+            vst1_u32(buf+2, el2l);
+            vst1_u32(buf+4, el2hl);
+            vst1_u32(buf+6, el2hh);
+            for(u32 k=0; k < 8; k++)
+                sqsum[j+k] = prev + prevSqSum[j+k] + buf[k];
+            prev += buf[7];
+        }
+
+        for (; j < size.width; ++j)
+            sqsum[j] = (prev += src[j]*src[j]) + prevSqSum[j];
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)sqsumBase;
+    (void)sqsumStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/intrinsics.hpp

@@ -0,0 +1,112 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_INTRINSICS_HPP
+#define CAROTENE_INTRINSICS_HPP
+
+#include <carotene/definitions.hpp>
+
+#include <arm_neon.h>
+
+namespace CAROTENE_NS { namespace internal {
+
+/////////////// Custom NEON intrinsics ///////////////////
+
+// calculate reciprocal value
+
+inline float32x4_t vrecpq_f32(float32x4_t val)
+{
+    float32x4_t reciprocal = vrecpeq_f32(val);
+    reciprocal = vmulq_f32(vrecpsq_f32(val, reciprocal), reciprocal);
+    reciprocal = vmulq_f32(vrecpsq_f32(val, reciprocal), reciprocal);
+    return reciprocal;
+}
+
+inline float32x2_t vrecp_f32(float32x2_t val)
+{
+    float32x2_t reciprocal = vrecpe_f32(val);
+    reciprocal = vmul_f32(vrecps_f32(val, reciprocal), reciprocal);
+    reciprocal = vmul_f32(vrecps_f32(val, reciprocal), reciprocal);
+    return reciprocal;
+}
+
+// caclulate sqrt value
+
+inline float32x4_t vrsqrtq_f32(float32x4_t val)
+{
+    float32x4_t e = vrsqrteq_f32(val);
+    e = vmulq_f32(vrsqrtsq_f32(vmulq_f32(e, e), val), e);
+    e = vmulq_f32(vrsqrtsq_f32(vmulq_f32(e, e), val), e);
+    return e;
+}
+
+inline float32x2_t vrsqrt_f32(float32x2_t val)
+{
+    float32x2_t e = vrsqrte_f32(val);
+    e = vmul_f32(vrsqrts_f32(vmul_f32(e, e), val), e);
+    e = vmul_f32(vrsqrts_f32(vmul_f32(e, e), val), e);
+    return e;
+}
+
+inline float32x4_t vsqrtq_f32(float32x4_t val)
+{
+    return vrecpq_f32(vrsqrtq_f32(val));
+}
+
+inline float32x2_t vsqrt_f32(float32x2_t val)
+{
+    return vrecp_f32(vrsqrt_f32(val));
+}
+
+// table lookup with the table in a 128-bit register
+
+inline uint8x8_t vqtbl1_u8 (uint8x16_t a, uint8x8_t b)
+{
+#ifdef __aarch64__
+    // AArch64 supports this natively
+    return ::vqtbl1_u8(a, b);
+#else
+    union { uint8x16_t v; uint8x8x2_t w; } u = { a };
+    return vtbl2_u8(u.w, b);
+#endif
+}
+
+} }
+
+#endif

libs/opencv/3rdparty/carotene/src/laplacian.cpp

@@ -0,0 +1,713 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "saturate_cast.hpp"
+
+#include <vector>
+
+namespace CAROTENE_NS {
+
+bool isLaplacian3x3Supported(const Size2D &size, BORDER_MODE border)
+{
+    return isSupportedConfiguration() && size.width >= 8 &&
+        (border == BORDER_MODE_CONSTANT ||
+            border == BORDER_MODE_REPLICATE);
+}
+
+void Laplacian3x3(const Size2D &size,
+                  const u8 * srcBase, ptrdiff_t srcStride,
+                  u8 * dstBase, ptrdiff_t dstStride,
+                  BORDER_MODE border, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isLaplacian3x3Supported(size, border));
+#ifdef CAROTENE_NEON
+    const uint16x8_t v_border_x3 = vdupq_n_u16(borderValue * 3);
+    const uint16x8_t v_zero = vdupq_n_u16(0);
+    const uint8x8_t v_border = vdup_n_u8(borderValue);
+
+    uint8x8_t vsub;
+    uint16x8_t tprev = v_zero, tcurr = v_zero, tnext = v_zero;
+    uint16x8_t t0 = v_zero, t1 = v_zero, t2 = v_zero;
+
+    ptrdiff_t width = (ptrdiff_t)size.width, height = (ptrdiff_t)size.height;
+
+    for (ptrdiff_t y = 0; y < height; ++y)
+    {
+        const u8 * srow0 = y == 0 && border == BORDER_MODE_CONSTANT ? NULL : internal::getRowPtr(srcBase, srcStride, std::max<ptrdiff_t>(y - 1, 0));
+        const u8 * srow1 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8 * srow2 = y + 1 == height && border == BORDER_MODE_CONSTANT ? NULL : internal::getRowPtr(srcBase, srcStride, std::min(y + 1, height - 1));
+        u8 * drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        s16 prevx = 0, currx = 0, nextx = 0;
+        ptrdiff_t x = 0;
+        const ptrdiff_t bwidth = y + 2 < height ? width : (width - 8);
+
+        // perform vertical convolution
+        for ( ; x <= bwidth; x += 8)
+        {
+            internal::prefetch(srow0 + x);
+            internal::prefetch(srow1 + x);
+            internal::prefetch(srow2 + x);
+
+            uint8x8_t x0 = !srow0 ? v_border : vld1_u8(srow0 + x);
+            uint8x8_t x1 = vld1_u8(srow1 + x);
+            uint8x8_t x2 = !srow2 ? v_border : vld1_u8(srow2 + x);
+
+            // calculate values for plain CPU part below if needed
+            if (x + 8 >= bwidth)
+            {
+                ptrdiff_t x3 = x == width ? width - 1 : x;
+                ptrdiff_t x4 = border == BORDER_MODE_CONSTANT ? x3 - 1 : std::max<ptrdiff_t>(x3 - 1, 0);
+
+                if (border == BORDER_MODE_CONSTANT && x4 < 0)
+                    prevx = borderValue;
+                else
+                    prevx = (srow2 ? srow2[x4] : borderValue) + srow1[x4] + (srow0 ? srow0[x4] : borderValue);
+
+                currx = (srow2 ? srow2[x3] : borderValue) + srow1[x3] + (srow0 ? srow0[x3] : borderValue);
+            }
+
+            // make shift
+            if (x)
+            {
+                tprev = tcurr;
+                tcurr = tnext;
+            }
+
+            // and calculate next value
+            tnext = vaddw_u8(vaddl_u8(x0, x1), x2);
+
+            // make extrapolation for the first elements
+            if (!x)
+            {
+                // make border
+                if (border == BORDER_MODE_CONSTANT)
+                    tcurr = v_border_x3;
+                else if (border == BORDER_MODE_REPLICATE)
+                    tcurr = vdupq_n_u16(vgetq_lane_u16(tnext, 0));
+
+                vsub = x1;
+
+                continue;
+            }
+
+            // combine 3 "shifted" vectors
+            t0 = vextq_u16(tprev, tcurr, 7);
+            t1 = tcurr;
+            t2 = vextq_u16(tcurr, tnext, 1);
+
+            // and add them
+            t0 = vqaddq_u16(t0, vqaddq_u16(t1, t2));
+
+            int16x8_t tt0 = vsubq_s16(vreinterpretq_s16_u16(t0),
+                                      vreinterpretq_s16_u16(vaddw_u8(vshll_n_u8(vsub, 3), vsub)));
+            uint8x8_t it0 = vqmovun_s16(tt0);
+            vst1_u8(drow + x - 8, it0);
+
+            vsub = x1;
+        }
+
+        x -= 8;
+        if (x == width)
+            --x;
+
+        for ( ; x < width; ++x)
+        {
+            // make extrapolation for the last elements
+            if (x + 1 >= width)
+            {
+                if (border == BORDER_MODE_CONSTANT)
+                    nextx = borderValue * 3;
+                else if (border == BORDER_MODE_REPLICATE)
+                    nextx = srow2[x] + srow1[x] + srow0[x];
+            }
+            else
+            {
+                nextx = (srow2 ? srow2[x + 1] : borderValue) +
+                                 srow1[x + 1] +
+                        (srow0 ? srow0[x + 1] : borderValue);
+            }
+
+            s32 val = (prevx + currx + nextx) - 9 * srow1[x];
+            drow[x] = internal::saturate_cast<u8>((s32)val);
+
+            // make shift
+            prevx = currx;
+            currx = nextx;
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+#endif
+}
+
+bool isLaplacianOpenCVSupported(const Size2D &size, BORDER_MODE border)
+{
+    return isSupportedConfiguration() &&
+        size.width >= 8 && size.height >= 1 &&
+        (border == BORDER_MODE_CONSTANT   ||
+         border == BORDER_MODE_REFLECT    ||
+         border == BORDER_MODE_REFLECT101 ||
+         border == BORDER_MODE_REPLICATE);
+}
+
+void Laplacian1OpenCV(const Size2D &size,
+                      const u8 * srcBase, ptrdiff_t srcStride,
+                      s16 * dstBase, ptrdiff_t dstStride,
+                      BORDER_MODE border, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isLaplacianOpenCVSupported(size, border));
+#ifdef CAROTENE_NEON
+    ptrdiff_t rows = size.height, cols = size.width;
+
+    std::vector<u8> _tmp;
+    u8 *tmp = 0;
+    if (border == BORDER_MODE_CONSTANT)
+    {
+        _tmp.assign(cols + 4,borderValue);
+        tmp = &_tmp[2];
+    }
+
+    for( ptrdiff_t y = 0; y < rows; y++ )
+    {
+        const u8* v0 = 0;
+        const u8* v1 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8* v2 = 0;
+        // make border
+        if (border == BORDER_MODE_REFLECT101) {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : y+1);
+            v2 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 1 ? rows-2 : 0);
+        } else  if (border == BORDER_MODE_CONSTANT) {
+            v0 = y > 0 ? internal::getRowPtr(srcBase, srcStride, y-1) : tmp;
+            v2 =  y < rows-1 ? internal::getRowPtr(srcBase, srcStride, y+1) : tmp;
+        } else {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : 0);
+            v2 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 0 ? rows-1 : 0);
+        }
+        s16* drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        int16x8_t tcurr = vmovq_n_s16(0x0);
+        int16x8_t tnext = vmovq_n_s16(0x0);
+        int16x8_t t0, t2;
+        uint8x8_t xx0 = vmov_n_u8(0x0);
+        uint8x8_t xx1 = vmov_n_u8(0x0);
+        uint8x8_t xx2 = vmov_n_u8(0x0);
+        ptrdiff_t x = 0;
+        const ptrdiff_t bcols = y + 2 < rows ? cols : (cols - 8);
+        for( ; x <= bcols; x += 8 )
+        {
+            internal::prefetch(v0 + x);
+            internal::prefetch(v1 + x);
+            internal::prefetch(v2 + x);
+
+            uint8x8_t x0 = vld1_u8(v0 + x);
+            uint8x8_t x1 = vld1_u8(v1 + x);
+            uint8x8_t x2 = vld1_u8(v2 + x);
+
+            if(x) {
+                xx0 = xx1;
+                xx1 = xx2;
+            } else {
+                xx1 = x1;
+                // make border
+                    if (border == BORDER_MODE_REPLICATE || border == BORDER_MODE_REFLECT)
+                    {
+                        xx1 = vset_lane_u8(vget_lane_u8(x1, 0),x1, 7);
+                    }
+                    else if (border == BORDER_MODE_CONSTANT)
+                    {
+                        xx1 = vset_lane_u8(borderValue, x1, 7);
+                    }
+                    else if (border == BORDER_MODE_REFLECT101)
+                    {
+                        xx1 = vset_lane_u8(vget_lane_u8(x1, 1),x1, 7);
+                    }
+            }
+            xx2 = x1;
+
+            if(x) {
+                tcurr = tnext;
+            }
+            tnext = vsubq_s16(vreinterpretq_s16_u16(vaddl_u8(x0, x2)),
+                              vreinterpretq_s16_u16(vshll_n_u8(x1, 2)));
+
+            if(!x) {
+                tcurr = tnext;
+                continue;
+            }
+            t0 = vreinterpretq_s16_u16(vmovl_u8(vext_u8(xx0, xx1, 7)));
+            t2 = vreinterpretq_s16_u16(vmovl_u8(vext_u8(xx1, xx2, 1)));
+            t0 = vaddq_s16(vqaddq_s16(t0, t2), tcurr);
+
+            vst1q_s16(drow + x - 8, t0);
+        }
+
+        x -= 8;
+        if(x == cols){
+            x--;
+        }
+
+        for( ; x < cols; x++ )
+        {
+            s16 nextx;
+            s16 prevx;
+            // make border
+            if (border == BORDER_MODE_REPLICATE || border == BORDER_MODE_REFLECT)
+            {
+                prevx = x == 0 ? v1[0] : v1[x-1];
+                nextx = x == cols-1 ? v1[x] : v1[x+1];
+            }
+            else if (border == BORDER_MODE_REFLECT101)
+            {
+                prevx = x == 0 ? v1[1] : v1[x-1];
+                nextx = x == cols-1 ? v1[x-1] : v1[x+1];
+            }
+            else //if (border == BORDER_MODE_CONSTANT)
+            {
+                prevx = x == 0 ? borderValue : v1[x-1];
+                nextx = x == cols-1 ? borderValue : v1[x+1];
+            }
+            *(drow+x) = prevx + nextx - 4*v1[x] + v0[x] + v2[x];
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+#endif
+}
+
+void Laplacian3OpenCV(const Size2D &size,
+                      const u8 * srcBase, ptrdiff_t srcStride,
+                      s16 * dstBase, ptrdiff_t dstStride,
+                      BORDER_MODE border, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isLaplacianOpenCVSupported(size, border));
+#ifdef CAROTENE_NEON
+    ptrdiff_t rows = size.height, cols = size.width;
+
+    std::vector<u8> _tmp;
+    u8 *tmp = 0;
+    if (border == BORDER_MODE_CONSTANT)
+    {
+        _tmp.assign(cols + 4,borderValue);
+        tmp = &_tmp[2];
+    }
+
+    for( ptrdiff_t y = 0; y < rows; y++ )
+    {
+        const u8* v0 = 0;
+        const u8* v1 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8* v2 = 0;
+        // make border
+        if (border == BORDER_MODE_REFLECT101) {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : y+1);
+            v2 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 1 ? rows-2 : 0);
+        } else  if (border == BORDER_MODE_CONSTANT) {
+            v0 = y > 0 ? internal::getRowPtr(srcBase, srcStride, y-1) : tmp;
+            v2 = y < rows-1 ? internal::getRowPtr(srcBase, srcStride, y+1) : tmp;
+        } else {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : 0);
+            v2 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 0 ? rows-1 : 0);
+        }
+        s16* drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        int16x8_t tprev = vmovq_n_s16(0x0);
+        int16x8_t tcurr = vmovq_n_s16(0x0);
+        int16x8_t tnext = vmovq_n_s16(0x0);
+        int16x8_t tc = vmovq_n_s16(0x0);
+        int16x8_t t0, t2, tcnext;
+        ptrdiff_t x = 0;
+        const ptrdiff_t bcols = y + 2 < rows ? cols : (cols - 8);
+        for( ; x <= bcols; x += 8 )
+        {
+            internal::prefetch(v0 + x);
+            internal::prefetch(v1 + x);
+            internal::prefetch(v2 + x);
+
+            uint8x8_t x0 = vld1_u8(v0 + x);
+            uint8x8_t x1 = vld1_u8(v1 + x);
+            uint8x8_t x2 = vld1_u8(v2 + x);
+            tcnext = vreinterpretq_s16_u16(vshll_n_u8(x1, 2));
+
+            if(x) {
+                tprev = tcurr;
+                tcurr = tnext;
+            }
+            tnext = vreinterpretq_s16_u16(vaddl_u8(x0, x2));
+
+            if(!x) {
+                tcurr = tnext;
+                tc = tcnext;
+
+                // make border
+                    if (border == BORDER_MODE_REPLICATE || border == BORDER_MODE_REFLECT)
+                    {
+                        tcurr = vsetq_lane_s16(vgetq_lane_s16(tcurr, 0),tcurr, 7);
+                    }
+                    else if (border == BORDER_MODE_CONSTANT)
+                    {
+                        tcurr = vsetq_lane_s16(borderValue, tcurr, 7);
+                    }
+                    else if (border == BORDER_MODE_REFLECT101)
+                    {
+                        tcurr = vsetq_lane_s16(vgetq_lane_s16(tcurr, 1),tcurr, 7);
+                    }
+                continue;
+            }
+
+            t0 = vextq_s16(tprev, tcurr, 7);
+            t2 = vextq_s16(tcurr, tnext, 1);
+
+            t0 = vsubq_s16(vqaddq_s16(t0, t2), tc);
+            tc = tcnext;
+
+            t0 = vshlq_n_s16(t0, 1);
+            vst1q_s16(drow + x - 8, t0);
+        }
+        x -= 8;
+        if(x == cols){
+            x--;
+        }
+
+        for( ; x < cols; x++ )
+        {
+            s16 nextx, nextx2;
+            s16 prevx, prevx2;
+            // make border
+            if (border == BORDER_MODE_REPLICATE || border == BORDER_MODE_REFLECT)
+            {
+                prevx = x == 0 ? v0[0] : v0[x-1];
+                prevx2 = x == 0 ? v2[0] : v2[x-1];
+                nextx = x == cols-1 ? v0[x] : v0[x+1];
+                nextx2 = x == cols-1 ? v2[x] : v2[x+1];
+            }
+            else if (border == BORDER_MODE_REFLECT101)
+            {
+                prevx = x == 0 ? v0[1] : v0[x-1];
+                prevx2 = x == 0 ? v2[1] : v2[x-1];
+                nextx = x == cols-1 ? v0[x-1] : v0[x+1];
+                nextx2 = x == cols-1 ? v2[x-1] : v2[x+1];
+            }
+            else //if (border == BORDER_MODE_CONSTANT)
+            {
+                prevx = x == 0 ? borderValue : v0[x-1];
+                prevx2 = x == 0 ? borderValue : v2[x-1];
+                nextx = x == cols-1 ? borderValue : v0[x+1];
+                nextx2 = x == cols-1 ? borderValue : v2[x+1];
+            }
+            s16 res = prevx + nextx - 4*v1[x] + prevx2 + nextx2;
+            *(drow+x) = 2*res;
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+#endif
+}
+
+void Laplacian5OpenCV(const Size2D &size,
+                      const u8 * srcBase, ptrdiff_t srcStride,
+                      s16 * dstBase, ptrdiff_t dstStride,
+                      BORDER_MODE border, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isLaplacianOpenCVSupported(size, border));
+#ifdef CAROTENE_NEON
+    ptrdiff_t rows = size.height, cols = size.width;
+
+    std::vector<u8> _tmp;
+    u8 *tmp = 0;
+    if (border == BORDER_MODE_CONSTANT)
+    {
+        _tmp.assign(cols + 4,borderValue);
+        tmp = &_tmp[2];
+    }
+
+    for( ptrdiff_t y = 0; y < rows; y++ )
+    {
+        const u8* v0 = 0;
+        const u8* v1 = 0;
+        const u8* v2 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8* v3 = 0;
+        const u8* v4 = 0;
+        // make border
+        if (border == BORDER_MODE_REPLICATE) {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 1 ? y-2 : 0);
+            v1 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : 0);
+            v3 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 0 ? rows-1 : 0);
+            v4 = internal::getRowPtr(srcBase, srcStride, y < rows-2 ? y+2 : rows > 0 ? rows-1 : 0);
+        } else if (border == BORDER_MODE_REFLECT) {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 1 ? y-2 : rows > 1 ? 1-y : 0);
+            v1 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : 0);
+            v3 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 0 ? rows-1 : 0);
+            v4 = internal::getRowPtr(srcBase, srcStride, y < rows-2 ? y+2 : rows > 1 ? 2*rows-(y+3) : 0);
+        } else if (border == BORDER_MODE_REFLECT101) {
+            v0 = internal::getRowPtr(srcBase, srcStride, y > 1 ? y-2 : rows > 2-y ? 2-y : 0); ///check
+            v1 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : rows > 1 ? 1 : 0);
+            v3 = internal::getRowPtr(srcBase, srcStride, y < rows-1 ? y+1 : rows > 1 ? rows-2 : 0);
+            v4 = internal::getRowPtr(srcBase, srcStride, y < rows-2 ? y+2 : rows > 2 ? 2*rows-(y+4) : 0);///bad if rows=2 y=1   rows - 4 + (2,1)
+        } else if (border == BORDER_MODE_CONSTANT) {
+            v0 = y > 1 ? internal::getRowPtr(srcBase, srcStride, y-2) : tmp;
+            v1 = y > 0 ? internal::getRowPtr(srcBase, srcStride, y-1) : tmp;
+            v3 = y < rows-1 ? internal::getRowPtr(srcBase, srcStride, y+1) : tmp;
+            v4 = y < rows-2 ? internal::getRowPtr(srcBase, srcStride, y+2) : tmp;
+        }
+        s16* drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        int16x8_t tnext, tc, t0;
+        int16x8_t tnext2, tnext3;
+        int16x8_t tnext1Old, tnext2Old, tnext3Old;
+        int16x8_t tnext4OldOldOld, tnext5OldOldOld;
+
+        int16x8_t tcurr1 = vmovq_n_s16(0x0);
+        int16x8_t tnext1 = vmovq_n_s16(0x0);
+        int16x8_t tprev1 = vmovq_n_s16(0x0);
+        int16x8_t tpprev1 = vmovq_n_s16(0x0);
+        int16x8_t tppprev1 = vmovq_n_s16(0x0);
+
+        int16x8_t tnext4Old = vmovq_n_s16(0x0);
+        int16x8_t tnext5Old = vmovq_n_s16(0x0);
+        int16x8_t tnext1OldOld = vmovq_n_s16(0x0);
+        int16x8_t tnext2OldOld = vmovq_n_s16(0x0);
+        int16x8_t tnext3OldOld = vmovq_n_s16(0x0);
+        int16x8_t tnext4OldOld = vmovq_n_s16(0x0);
+        int16x8_t tnext5OldOld = vmovq_n_s16(0x0);
+
+        // do vertical convolution
+        ptrdiff_t x = 0;
+        const ptrdiff_t bcols = y + 3 < rows ? cols : (cols - 8);
+        for( ; x <= bcols; x += 8 )
+        {
+            internal::prefetch(v0 + x);
+            internal::prefetch(v1 + x);
+            internal::prefetch(v2 + x);
+            internal::prefetch(v3 + x);
+            internal::prefetch(v4 + x);
+
+            uint8x8_t x0 = vld1_u8(v0 + x);
+            uint8x8_t x1 = vld1_u8(v1 + x);
+            uint8x8_t x2 = vld1_u8(v2 + x);
+            uint8x8_t x3 = vld1_u8(v3 + x);
+            uint8x8_t x4 = vld1_u8(v4 + x);
+            if(x) {
+                tcurr1 = tnext1;
+            }
+
+            tnext4OldOldOld = tnext4Old;
+            tnext5OldOldOld = tnext5Old;
+            tnext1Old = tnext1OldOld;
+            tnext2Old = tnext2OldOld;
+            tnext3Old = tnext3OldOld;
+            tnext4Old = tnext4OldOld;
+            tnext5Old = tnext5OldOld;
+
+            tnext3 = vreinterpretq_s16_u16(vaddq_u16(vaddl_u8(x3, x2),vaddl_u8(x2, x1)));
+            tnext3 = vshlq_n_s16(tnext3, 1);
+
+            tc = vreinterpretq_s16_u16(vsubl_u8(x4, x2));
+            tnext = vreinterpretq_s16_u16(vsubl_u8(x2, x0));
+            tnext2 = vsubq_s16(tc, tnext);
+
+            tnext1 = vaddq_s16(tnext3, tnext2);
+            // tnext1 = x0 + 2*x1 + 2*x2 + 2*x3 + x4
+
+            tnext2 = vshlq_n_s16(tnext2, 1);
+            // tnext2 = 2*x4 - 4*x2 + 2*x0
+
+            tnext3 = vsubq_s16(tnext2, vshlq_n_s16(tnext3, 1));
+            // tnext3 = 2*x0 - 4*x1 - 12*x2 - 4*x3  + 2*x4
+
+            tnext1OldOld = tnext1;
+            tnext2OldOld = tnext2;
+            tnext3OldOld = tnext3;
+            tnext4OldOld = tnext2;
+            tnext5OldOld = tnext1;
+
+            if(x) {
+                tnext1 = vextq_s16(tnext1Old, tnext1, 2);
+                tcurr1 = vextq_s16(tnext2Old, tnext2, 1);
+                tprev1 = tnext3Old;
+
+                if(x!=8) {
+                    tpprev1 = vextq_s16(tnext4OldOldOld, tnext4Old, 7);
+                    tppprev1 = vextq_s16(tnext5OldOldOld, tnext5Old, 6);
+                }
+            }
+
+            if(!x) {
+                // make border
+                if (border == BORDER_MODE_REPLICATE) {
+                    tpprev1 = vextq_s16(tnext2, tnext2, 7);
+                    tpprev1 = vsetq_lane_s16(vgetq_lane_s16(tpprev1, 1),tpprev1, 0);
+
+                    tprev1 = vextq_s16(tnext1, tnext1, 6);
+                    tprev1 = vsetq_lane_s16(vgetq_lane_s16(tprev1, 2),tprev1, 0);
+                    tprev1 = vsetq_lane_s16(vgetq_lane_s16(tprev1, 2),tprev1, 1);
+                } else if (border == BORDER_MODE_REFLECT) {
+                    tpprev1 = vextq_s16(tnext2, tnext2, 7);
+                    tpprev1 = vsetq_lane_s16(vgetq_lane_s16(tpprev1, 1),tpprev1, 0);
+
+                    tprev1 = vextq_s16(tnext1, tnext1, 6);
+                    tprev1 = vsetq_lane_s16(vgetq_lane_s16(tprev1, 3),tprev1, 0);
+                    tprev1 = vsetq_lane_s16(vgetq_lane_s16(tprev1, 2),tprev1, 1);
+                } else if (border == BORDER_MODE_REFLECT101) {
+                    tpprev1 = vextq_s16(tnext2, tnext2, 7);
+                    tpprev1 = vsetq_lane_s16(vgetq_lane_s16(tpprev1, 2),tpprev1, 0);
+
+                    tprev1 = vextq_s16(tnext1, tnext1, 6);
+                    tprev1 = vsetq_lane_s16(vgetq_lane_s16(tprev1, 3),tprev1, 1);
+                    tprev1 = vsetq_lane_s16(vgetq_lane_s16(tprev1, 4),tprev1, 0);
+                } else if (border == BORDER_MODE_CONSTANT) {
+                    tpprev1 = vextq_s16(tnext2, tnext2, 7);
+                    tpprev1 = vsetq_lane_s16(borderValue, tpprev1, 0);
+
+                    tprev1 = vextq_s16(tnext1, tnext1, 6);
+                    tprev1 = vsetq_lane_s16(borderValue, tprev1, 0);
+                    tprev1 = vsetq_lane_s16(borderValue, tprev1, 1);
+                }
+                tppprev1 = tprev1;
+                continue;
+            }
+
+            t0 = vaddq_s16(vaddq_s16(vqaddq_s16(tcurr1, tprev1), vqaddq_s16(tpprev1, tppprev1)), tnext1);
+            t0 = vaddq_s16(t0, t0);
+            vst1q_s16(drow + x - 8, t0);
+        }
+        x -= 8;
+        if(x >= cols - 1)
+            x = cols-2;
+
+        s16 pprevx = 0;
+        s16 prevx = 0;
+        s16 nextx = 0;
+        s16 nnextx = 0;
+
+        for( ; x < cols; x++ )
+        {
+            if (x == 0) {
+                // make border
+                if (border == BORDER_MODE_REPLICATE) {
+                    pprevx = v0[0] + 2*v1[0] + 2*v2[0] + 2*v3[0] + v4[0];
+                    prevx = 2*v0[0] - 4*v2[0] + 2*v4[0];
+                } else if (border == BORDER_MODE_REFLECT) {
+                    pprevx = v0[1] + 2*v1[1] + 2*v2[1] + 2*v3[1] + v4[1];
+                    prevx = 2*v0[0] - 4*v2[0] + 2*v4[0];
+                } else if (border == BORDER_MODE_REFLECT101) {
+                    pprevx = v0[2] + 2*v1[2] + 2*v2[2] + 2*v3[2] + v4[2];
+                    prevx = 2*v0[1] - 4*v2[1] + 2*v4[1];
+                } else if (border == BORDER_MODE_CONSTANT) {
+                    pprevx = 8 * borderValue;
+                    prevx = 0;
+                }
+            } else if (x == 1) {
+                // make border
+                if (border == BORDER_MODE_REPLICATE || border == BORDER_MODE_REFLECT) {
+                    pprevx = v0[0] + 2*v1[0] + 2*v2[0] + 2*v3[0] + v4[0];
+                } else if (border == BORDER_MODE_REFLECT101) {
+                    pprevx = v0[1] + 2*v1[1] + 2*v2[1] + 2*v3[1] + v4[1];
+                } else if (border == BORDER_MODE_CONSTANT) {
+                    pprevx = 8 * borderValue;
+                }
+                prevx = 2*v0[0] - 4*v2[0] + 2*v4[0];
+            } else {
+                pprevx = v0[x-2] + 2*v1[x-2] + 2*v2[x-2] + 2*v3[x-2] + v4[x-2];
+                prevx = 2*v0[x-1] - 4*v2[x-1] + 2*v4[x-1];
+            }
+            s16 currx = 2*v0[x] - 4*v1[x] - 12*v2[x] - 4*v3[x] + 2*v4[x];
+            if (x == cols-1) {
+                // make border
+                if (border == BORDER_MODE_REPLICATE) {
+                    nextx = 2*v0[x] - 4*v2[x] + 2*v4[x];
+                    nnextx = v0[x] + 2*v1[x] + 2*v2[x] + 2*v3[x] + v4[x];
+                } else if (border == BORDER_MODE_REFLECT) {
+                    nextx = 2*v0[x] - 4*v2[x] + 2*v4[x];
+                    nnextx = v0[x-1] + 2*v1[x-1] + 2*v2[x-1] + 2*v3[x-1] + v4[x-1];
+                } else if (border == BORDER_MODE_REFLECT101) {
+                    nextx = 2*v0[x-1] - 4*v2[x-1] + 2*v4[x-1];
+                    nnextx = v0[x-2] + 2*v1[x-2] + 2*v2[x-2] + 2*v3[x-2] + v4[x-2];
+                } else if (border == BORDER_MODE_CONSTANT) {
+                    nextx = 0;
+                    nnextx = 8 * borderValue;
+                }
+            } else if (x == cols-2) {
+                // make border
+                if (border == BORDER_MODE_REPLICATE || border == BORDER_MODE_REFLECT) {
+                    nnextx = v0[x+1] + 2*v1[x+1] + 2*v2[x+1] + 2*v3[x+1] + v4[x+1];
+                } else if (border == BORDER_MODE_REFLECT101) {
+                    nnextx = v0[x] + 2*v1[x] + 2*v2[x] + 2*v3[x] + v4[x];
+                } else if (border == BORDER_MODE_CONSTANT) {
+                    nnextx = 8 * borderValue;
+                }
+                nextx = 2*v0[x+1] - 4*v2[x+1] + 2*v4[x+1];
+            } else {
+                nextx = 2*v0[x+1] - 4*v2[x+1] + 2*v4[x+1];
+                nnextx = v0[x+2] + 2*v1[x+2] + 2*v2[x+2] + 2*v3[x+2] + v4[x+2];
+            }
+            s16 res = pprevx + prevx + currx + nextx + nnextx;
+            *(drow+x) = 2*res;
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/magnitude.cpp

@@ -0,0 +1,160 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+#include <cmath>
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+struct Magnitude
+{
+    typedef s16 type;
+
+    void operator() (const int16x8_t & v_src0, const int16x8_t & v_src1,
+              int16x8_t & v_dst) const
+    {
+        int16x4_t v_src0_p = vget_low_s16(v_src0), v_src1_p = vget_low_s16(v_src1);
+        float32x4_t v_sqr0 = vaddq_f32(vcvtq_f32_s32(vmull_s16(v_src0_p, v_src0_p)),
+                                       vcvtq_f32_s32(vmull_s16(v_src1_p, v_src1_p)));
+        v_src0_p = vget_high_s16(v_src0);
+        v_src1_p = vget_high_s16(v_src1);
+        float32x4_t v_sqr1 = vaddq_f32(vcvtq_f32_s32(vmull_s16(v_src0_p, v_src0_p)),
+                                       vcvtq_f32_s32(vmull_s16(v_src1_p, v_src1_p)));
+
+        int32x4_t v_sqrt0 = vcvtq_s32_f32(internal::vsqrtq_f32(v_sqr0));
+        int32x4_t v_sqrt1 = vcvtq_s32_f32(internal::vsqrtq_f32(v_sqr1));
+
+        v_dst = vcombine_s16(vqmovn_s32(v_sqrt0), vqmovn_s32(v_sqrt1));
+    }
+
+    void operator() (const int16x4_t & v_src0, const int16x4_t & v_src1,
+              int16x4_t & v_dst) const
+    {
+        float32x4_t v_tmp = vaddq_f32(vcvtq_f32_s32(vmull_s16(v_src0, v_src0)),
+                                      vcvtq_f32_s32(vmull_s16(v_src1, v_src1)));
+        int32x4_t v_sqrt = vcvtq_s32_f32(internal::vsqrtq_f32(v_tmp));
+        v_dst = vqmovn_s32(v_sqrt);
+    }
+
+    void operator() (const short * src0, const short * src1, short * dst) const
+    {
+        f32 src0val = (f32)src0[0], src1val = (f32)src1[0];
+        dst[0] = internal::saturate_cast<s16>((s32)sqrtf(src0val * src0val + src1val * src1val));
+    }
+};
+
+struct MagnitudeF32
+{
+    typedef f32 type;
+
+    void operator() (const float32x4_t & v_src0, const float32x4_t & v_src1,
+              float32x4_t & v_dst) const
+    {
+        v_dst = internal::vsqrtq_f32(vaddq_f32(vmulq_f32(v_src0, v_src0), vmulq_f32(v_src1, v_src1)));
+    }
+
+    void operator() (const float32x2_t & v_src0, const float32x2_t & v_src1,
+              float32x2_t & v_dst) const
+    {
+        v_dst = internal::vsqrt_f32(vadd_f32(vmul_f32(v_src0, v_src0), vmul_f32(v_src1, v_src1)));
+    }
+
+    void operator() (const f32 * src0, const f32 * src1, f32 * dst) const
+    {
+        dst[0] = sqrtf(src0[0] * src0[0] + src1[0] * src1[0]);
+    }
+};
+
+} // namespace
+
+#endif
+
+void magnitude(const Size2D &size,
+               const s16 * src0Base, ptrdiff_t src0Stride,
+               const s16 * src1Base, ptrdiff_t src1Stride,
+               s16 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride,
+                         Magnitude());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void magnitude(const Size2D &size,
+               const f32 * src0Base, ptrdiff_t src0Stride,
+               const f32 * src1Base, ptrdiff_t src1Stride,
+               f32 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride,
+                         MagnitudeF32());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/meanstddev.cpp

@@ -0,0 +1,163 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include <cmath>
+
+namespace CAROTENE_NS {
+
+void meanStdDev(const Size2D &size,
+                const u8 * srcBase, ptrdiff_t srcStride,
+                f32 * pMean, f32 * pStdDev)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    f64 fsum = 0.0f, fsqsum = 0.0f;
+    sqsum(size, srcBase, srcStride, &fsum, &fsqsum, 1);
+
+    // calc mean and stddev
+    f64 itotal = 1.0 / size.total();
+    f64 mean = fsum * itotal;
+    f64 stddev = sqrt(std::max(fsqsum * itotal - mean * mean, 0.0));
+
+    if (pMean)
+        *pMean = mean;
+    if (pStdDev)
+        *pStdDev = stddev;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)pMean;
+    (void)pStdDev;
+#endif
+}
+
+void meanStdDev(const Size2D &size,
+                const u16 * srcBase, ptrdiff_t srcStride,
+                f32 * pMean, f32 * pStdDev)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t blockSize0 = 1 << 10, roiw4 = size.width & ~3;
+    f64 fsum = 0.0f, fsqsum = 0.0f;
+
+    f32 arsum[8];
+    uint32x4_t v_zero = vdupq_n_u32(0u), v_sum;
+    float32x4_t v_zero_f = vdupq_n_f32(0.0f), v_sqsum;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u16 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0u;
+
+        while (j < roiw4)
+        {
+            size_t blockSize = std::min(roiw4 - j, blockSize0) + j;
+            v_sum = v_zero;
+            v_sqsum = v_zero_f;
+
+            for ( ; j + 16 < blockSize ; j += 16)
+            {
+                internal::prefetch(src + j);
+                uint16x8_t v_src0 = vld1q_u16(src + j), v_src1 = vld1q_u16(src + j + 8);
+
+                // 0
+                uint32x4_t v_srclo = vmovl_u16(vget_low_u16(v_src0));
+                uint32x4_t v_srchi = vmovl_u16(vget_high_u16(v_src0));
+                v_sum = vaddq_u32(v_sum, vaddq_u32(v_srclo, v_srchi));
+                float32x4_t v_srclo_f = vcvtq_f32_u32(v_srclo);
+                float32x4_t v_srchi_f = vcvtq_f32_u32(v_srchi);
+                v_sqsum = vmlaq_f32(v_sqsum, v_srclo_f, v_srclo_f);
+                v_sqsum = vmlaq_f32(v_sqsum, v_srchi_f, v_srchi_f);
+
+                // 1
+                v_srclo = vmovl_u16(vget_low_u16(v_src1));
+                v_srchi = vmovl_u16(vget_high_u16(v_src1));
+                v_sum = vaddq_u32(v_sum, vaddq_u32(v_srclo, v_srchi));
+                v_srclo_f = vcvtq_f32_u32(v_srclo);
+                v_srchi_f = vcvtq_f32_u32(v_srchi);
+                v_sqsum = vmlaq_f32(v_sqsum, v_srclo_f, v_srclo_f);
+                v_sqsum = vmlaq_f32(v_sqsum, v_srchi_f, v_srchi_f);
+            }
+
+            for ( ; j < blockSize; j += 4)
+            {
+                uint32x4_t v_src = vmovl_u16(vld1_u16(src + j));
+                float32x4_t v_src_f = vcvtq_f32_u32(v_src);
+                v_sum = vaddq_u32(v_sum, v_src);
+                v_sqsum = vmlaq_f32(v_sqsum, v_src_f, v_src_f);
+            }
+
+            vst1q_f32(arsum, vcvtq_f32_u32(v_sum));
+            vst1q_f32(arsum + 4, v_sqsum);
+
+            fsum += (f64)arsum[0] + arsum[1] + arsum[2] + arsum[3];
+            fsqsum += (f64)arsum[4] + arsum[5] + arsum[6] + arsum[7];
+        }
+
+        // collect a few last elements in the current row
+        for ( ; j < size.width; ++j)
+        {
+            f32 srcval = src[j];
+            fsum += srcval;
+            fsqsum += srcval * srcval;
+        }
+    }
+
+    // calc mean and stddev
+    f64 itotal = 1.0 / size.total();
+    f64 mean = fsum * itotal;
+    f64 stddev = sqrt(std::max(fsqsum * itotal - mean * mean, 0.0));
+
+    if (pMean)
+        *pMean = mean;
+    if (pStdDev)
+        *pStdDev = stddev;
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)pMean;
+    (void)pStdDev;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/median_filter.cpp

@@ -0,0 +1,227 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+/*
+ * The code here is based on the code in
+ * <http://ndevilla.free.fr/median/median/src/optmed.c>, which is in public domain.
+ * See also <http://ndevilla.free.fr/median/median/index.html>.
+ */
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+namespace {
+
+    uint8x16_t getLeftReplicate(uint8x16_t r, u32 cn)
+    {
+        u8 buf[16+8];
+        vst1q_u8(buf+cn, r);
+        for (u32 i = 0; i < cn; ++i) buf[i] = buf[cn+i];
+        return vld1q_u8(buf);
+    }
+
+    uint8x8_t getRightReplicate(uint8x8_t r, u32 cn)
+    {
+        u8 buf[8+8];
+        vst1_u8(buf, r);
+        for (u32 i = 0; i < cn; ++i) buf[8+i] = buf[8-cn+i];
+        return vld1_u8(buf+cn);
+    }
+
+} // namespace
+
+//o------^-------^-----------------------------o 0
+//       |       |
+//o--^---v---^---|-------^---------------------o 1
+//   |       |   |       |
+//o--v-------v---|-------|-^-------^-------^---o 2
+//               |       | |       |       |
+//o------^-------v-----^-|-|-------|-------|---o 3
+//       |             | | |       |       |
+//o--^---v---^-----^---|-v-|---^---v---^---v---o 4
+//   |       |     |   |   |   |       |
+//o--v-------v---^-|---|---v---|-------|-------o 5
+//               | |   |       |       |
+//o------^-------|-|---v-------|-------v-------o 6
+//       |       | |           |
+//o--^---v---^---|-v-----------v---------------o 7
+//   |       |   |
+//o--v-------v---v-----------------------------o 8
+
+#define ELT(num, level) v ## num ## _lv ## level
+#define PIX_SORT(a, alvl, b, blvl, newlvl) \
+    PIX_MIN(a, alvl, b, blvl, newlvl); \
+    PIX_MAX(a, alvl, b, blvl, newlvl);
+
+#define SORT9 \
+    PIX_SORT(1, 00, 2, 00, 01); \
+    PIX_SORT(4, 00, 5, 00, 02); \
+    PIX_SORT(7, 00, 8, 00, 03); \
+    PIX_SORT(0, 00, 1, 01, 04); \
+    PIX_SORT(3, 00, 4, 02, 05); \
+    PIX_SORT(6, 00, 7, 03, 06); \
+    PIX_SORT(1, 04, 2, 01, 07); \
+    PIX_SORT(4, 05, 5, 02, 08); \
+    PIX_SORT(7, 06, 8, 03, 09); \
+    PIX_MAX (0, 04, 3, 05, 10); \
+    PIX_MIN (5, 08, 8, 09, 11); \
+    PIX_SORT(4, 08, 7, 09, 12); \
+    PIX_MAX (3, 10, 6, 06, 13); \
+    PIX_MAX (1, 07, 4, 12, 14); \
+    PIX_MIN (2, 07, 5, 11, 15); \
+    PIX_MIN (4, 14, 7, 12, 16); \
+    PIX_SORT(4, 16, 2, 15, 17); \
+    PIX_MAX (6, 13, 4, 17, 18); \
+    PIX_MIN (4, 18, 2, 17, 19);
+
+#endif
+
+bool isMedianFilter3x3Supported(const Size2D &size, u32 numChannels)
+{
+    return isSupportedConfiguration() && size.width >= 16 + numChannels && numChannels <= 8;
+}
+
+void medianFilter3x3(const Size2D &size, u32 numChannels,
+                     const u8 *srcBase, ptrdiff_t srcStride,
+                     const Margin &srcMargin,
+                     u8 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration(isMedianFilter3x3Supported(size, numChannels));
+#ifdef CAROTENE_NEON
+    u32 cn = numChannels;
+    size_t colsn = size.width * cn;
+
+    for (size_t i = 0; i < size.height; ++i) {
+        const u8* psrc1 = internal::getRowPtr(srcBase, srcStride, i);
+        const u8* psrc0 = i == 0 && srcMargin.top == 0 ? psrc1 : psrc1 - srcStride;
+        const u8* psrc2 = i + 1 == size.height && srcMargin.bottom == 0 ? psrc1 : psrc1 + srcStride;
+        u8* pdst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        {
+            uint8x16_t v3_lv00 = vld1q_u8(psrc0);
+            uint8x16_t v4_lv00 = vld1q_u8(psrc1);
+            uint8x16_t v5_lv00 = vld1q_u8(psrc2);
+            uint8x16_t v6_lv00 = vld1q_u8(psrc0 + cn);
+            uint8x16_t v7_lv00 = vld1q_u8(psrc1 + cn);
+            uint8x16_t v8_lv00 = vld1q_u8(psrc2 + cn);
+            uint8x16_t v0_lv00 = srcMargin.left > 0 ? vld1q_u8(psrc0 - cn) : getLeftReplicate(v3_lv00, cn);
+            uint8x16_t v1_lv00 = srcMargin.left > 0 ? vld1q_u8(psrc1 - cn) : getLeftReplicate(v4_lv00, cn);
+            uint8x16_t v2_lv00 = srcMargin.left > 0 ? vld1q_u8(psrc2 - cn) : getLeftReplicate(v5_lv00, cn);
+
+            goto medianBlur3x3_mainBody;
+
+            for (; j < colsn - 16; j += 16) {
+                internal::prefetch(psrc0 + j);
+                internal::prefetch(psrc1 + j);
+                internal::prefetch(psrc2 + j);
+
+                v0_lv00 = vld1q_u8(psrc0 + j - cn);
+                v1_lv00 = vld1q_u8(psrc1 + j - cn);
+                v2_lv00 = vld1q_u8(psrc2 + j - cn);
+                v3_lv00 = vld1q_u8(psrc0 + j);
+                v4_lv00 = vld1q_u8(psrc1 + j);
+                v5_lv00 = vld1q_u8(psrc2 + j);
+                v6_lv00 = vld1q_u8(psrc0 + j + cn);
+                v7_lv00 = vld1q_u8(psrc1 + j + cn);
+                v8_lv00 = vld1q_u8(psrc2 + j + cn);
+
+medianBlur3x3_mainBody:
+
+#define PIX_MIN(a, alvl, b, blvl, newlvl) uint8x16_t ELT(a, newlvl) = vminq_u8(ELT(a, alvl), ELT(b, blvl))
+#define PIX_MAX(a, alvl, b, blvl, newlvl) uint8x16_t ELT(b, newlvl) = vmaxq_u8(ELT(a, alvl), ELT(b, blvl))
+                SORT9;
+#undef PIX_MAX
+#undef PIX_MIN
+
+                vst1q_u8(pdst + j, v4_lv19);
+            }
+        }
+
+        {
+            size_t k = colsn - 8;
+            uint8x8_t v0_lv00 = vld1_u8(psrc0 + k - cn);
+            uint8x8_t v1_lv00 = vld1_u8(psrc1 + k - cn);
+            uint8x8_t v2_lv00 = vld1_u8(psrc2 + k - cn);
+            uint8x8_t v3_lv00 = vld1_u8(psrc0 + k);
+            uint8x8_t v4_lv00 = vld1_u8(psrc1 + k);
+            uint8x8_t v5_lv00 = vld1_u8(psrc2 + k);
+            uint8x8_t v6_lv00 = srcMargin.right > 0 ? vld1_u8(psrc0 + k + cn) : getRightReplicate(v3_lv00, cn);
+            uint8x8_t v7_lv00 = srcMargin.right > 0 ? vld1_u8(psrc1 + k + cn) : getRightReplicate(v4_lv00, cn);
+            uint8x8_t v8_lv00 = srcMargin.right > 0 ? vld1_u8(psrc2 + k + cn) : getRightReplicate(v5_lv00, cn);
+
+            goto medianBlur3x3_tailBody;
+
+            for (; k >= j - 8; k -= 8) {
+                v0_lv00 = vld1_u8(psrc0 + k - cn);
+                v1_lv00 = vld1_u8(psrc1 + k - cn);
+                v2_lv00 = vld1_u8(psrc2 + k - cn);
+                v3_lv00 = vld1_u8(psrc0 + k);
+                v4_lv00 = vld1_u8(psrc1 + k);
+                v5_lv00 = vld1_u8(psrc2 + k);
+                v6_lv00 = vld1_u8(psrc0 + k + cn);
+                v7_lv00 = vld1_u8(psrc1 + k + cn);
+                v8_lv00 = vld1_u8(psrc2 + k + cn);
+
+medianBlur3x3_tailBody:
+
+#define PIX_MIN(a, alvl, b, blvl, newlvl) uint8x8_t ELT(a, newlvl) = vmin_u8(ELT(a, alvl), ELT(b, blvl))
+#define PIX_MAX(a, alvl, b, blvl, newlvl) uint8x8_t ELT(b, newlvl) = vmax_u8(ELT(a, alvl), ELT(b, blvl))
+                SORT9;
+#undef PIX_MAX
+#undef PIX_MIN
+
+                vst1_u8(pdst + k, v4_lv19);
+            }
+        }
+    }
+#else
+    (void)size;
+    (void)numChannels;
+    (void)srcBase;
+    (void)srcStride;
+    (void)srcMargin;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/min_max.cpp

@@ -0,0 +1,139 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include <algorithm>
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <typename T>
+struct Min
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vminq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vmin(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = std::min(src0[0], src1[0]);
+    }
+};
+
+template <typename T>
+struct Max
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vmaxq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vmax(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = std::max(src0[0], src1[0]);
+    }
+};
+
+} // namespace
+
+#define IMPL_OP(fun, op, type)                                         \
+void fun(const Size2D &size,                                           \
+         const type * src0Base, ptrdiff_t src0Stride,                  \
+         const type * src1Base, ptrdiff_t src1Stride,                  \
+         type * dstBase, ptrdiff_t dstStride)                          \
+{                                                                      \
+    internal::assertSupportedConfiguration();                          \
+    internal::vtransform(size,                                         \
+                         src0Base, src0Stride,                         \
+                         src1Base, src1Stride,                         \
+                         dstBase, dstStride, op<type>());              \
+}
+
+#else
+
+#define IMPL_OP(fun, op, type)                    \
+void fun(const Size2D &,                          \
+         const type *, ptrdiff_t,                 \
+         const type *, ptrdiff_t,                 \
+         type *, ptrdiff_t)                       \
+{                                                 \
+    internal::assertSupportedConfiguration();     \
+}
+
+#endif
+
+#define IMPL_MINMAX(type) IMPL_OP(min, Min, type) IMPL_OP(max, Max, type)
+
+IMPL_MINMAX(u8)
+IMPL_MINMAX(s8)
+IMPL_MINMAX(u16)
+IMPL_MINMAX(s16)
+IMPL_MINMAX(u32)
+IMPL_MINMAX(s32)
+IMPL_MINMAX(f32)
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/morph.cpp

@@ -0,0 +1,728 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include <algorithm>
+#include <limits>
+#include <vector>
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+bool isMorph3x3Supported(const Size2D &size, BORDER_MODE border)
+{
+    return isSupportedConfiguration() && size.width >= 16 &&
+        (border == BORDER_MODE_CONSTANT ||
+            border == BORDER_MODE_REPLICATE);
+}
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+struct ErodeVecOp
+{
+    ErodeVecOp():borderValue(0){}
+
+    ErodeVecOp(BORDER_MODE border, u8 borderValue_) :
+        borderValue(borderValue_)
+    {
+        if (border == BORDER_MODE_REPLICATE)
+            borderValue = std::numeric_limits<u8>::max();
+    }
+
+    inline uint8x16_t operator()(uint8x16_t a, uint8x16_t b) const
+    {
+        return vminq_u8(a, b);
+    }
+
+    inline uint8x8_t operator()(uint8x8_t a, uint8x8_t b) const
+    {
+        return vmin_u8(a, b);
+    }
+
+    inline u8 operator()(u8 a, u8 b) const
+    {
+        return std::min(a, b);
+    }
+
+    u8 borderValue;
+};
+
+struct DilateVecOp
+{
+    DilateVecOp():borderValue(0){}
+
+    DilateVecOp(BORDER_MODE border, u8 borderValue_) :
+        borderValue(borderValue_)
+    {
+        if (border == BORDER_MODE_REPLICATE)
+            borderValue = std::numeric_limits<u8>::min();
+    }
+
+    inline uint8x16_t operator()(uint8x16_t a, uint8x16_t b) const
+    {
+        return vmaxq_u8(a, b);
+    }
+
+    inline uint8x8_t operator()(uint8x8_t a, uint8x8_t b) const
+    {
+        return vmax_u8(a, b);
+    }
+
+    inline u8 operator()(u8 a, u8 b) const
+    {
+        return std::max(a, b);
+    }
+
+    u8 borderValue;
+};
+
+template <typename VecOp>
+void morph3x3(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              u8 * dstBase, ptrdiff_t dstStride,
+              BORDER_MODE border, const VecOp & vop)
+{
+    u8 borderValue = vop.borderValue;
+    ptrdiff_t width = (ptrdiff_t)size.width, height = (ptrdiff_t)size.height;
+
+    const uint8x16_t v_zero = vdupq_n_u8(0);
+    const uint8x16_t v_border = vdupq_n_u8(borderValue);
+
+    uint8x16_t tprev = v_zero, tcurr = v_zero, tnext = v_zero;
+    uint8x16_t t0 = v_zero, t1 = v_zero, t2 = v_zero;
+
+    for (ptrdiff_t y = 0; y < height; ++y)
+    {
+        const u8 * srow0 = y == 0 && border == BORDER_MODE_CONSTANT ? NULL : internal::getRowPtr(srcBase, srcStride, std::max<ptrdiff_t>(y - 1, 0));
+        const u8 * srow1 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8 * srow2 = y + 1 == height && border == BORDER_MODE_CONSTANT ? NULL : internal::getRowPtr(srcBase, srcStride, std::min(y + 1, height - 1));
+        u8 * drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        u8 prevx = 0, currx = 0, nextx = 0;
+        ptrdiff_t x = 0;
+        const ptrdiff_t bwidth = y + 2 < height ? width : (width - 16);
+
+        // perform vertical convolution
+        for ( ; x <= bwidth; x += 16)
+        {
+            internal::prefetch(srow0 + x);
+            internal::prefetch(srow1 + x);
+            internal::prefetch(srow2 + x);
+
+            uint8x16_t x0 = !srow0 ? v_border : vld1q_u8(srow0 + x);
+            uint8x16_t x1 = vld1q_u8(srow1 + x);
+            uint8x16_t x2 = !srow2 ? v_border : vld1q_u8(srow2 + x);
+
+            // calculate values for plain CPU part below if needed
+            if (x + 16 >= bwidth)
+            {
+                ptrdiff_t x3 = x == width ? width - 1 : x;
+                ptrdiff_t x4 = border == BORDER_MODE_CONSTANT ? x3 - 1 : std::max<ptrdiff_t>(x3 - 1, 0);
+
+                if (border == BORDER_MODE_CONSTANT && x4 < 0)
+                    prevx = borderValue;
+                else
+                    prevx = vop(srow1[x4],
+                                vop(srow2 ? srow2[x4] : borderValue,
+                                    srow0 ? srow0[x4] : borderValue));
+
+                currx = vop(srow2 ? srow2[x3] : borderValue, vop(srow1[x3], srow0 ? srow0[x3] : borderValue));
+            }
+
+            // make shift
+            if (x)
+            {
+                tprev = tcurr;
+                tcurr = tnext;
+            }
+
+            // and calculate next value
+            tnext = vop(vop(x0, x1), x2);
+
+            // make extrapolation for the first elements
+            if (!x)
+            {
+                // make border
+                if (border == BORDER_MODE_CONSTANT)
+                    tcurr = v_border;
+                else if (border == BORDER_MODE_REPLICATE)
+                    tcurr = vdupq_n_u8(vgetq_lane_u8(tnext, 0));
+
+                continue;
+            }
+
+            // combine 3 "shifted" vectors
+            t0 = vextq_u8(tprev, tcurr, 15);
+            t1 = tcurr;
+            t2 = vextq_u8(tcurr, tnext, 1);
+
+            // and add them
+            t0 = vop(t0, vop(t1, t2));
+
+            vst1q_u8(drow + x - 16, t0);
+        }
+
+        x -= 16;
+        if (x == width)
+            --x;
+
+        for ( ; x < width; ++x)
+        {
+            // make extrapolation for the last elements
+            if (x + 1 >= width)
+            {
+                if (border == BORDER_MODE_CONSTANT)
+                    nextx = borderValue;
+                else if (border == BORDER_MODE_REPLICATE)
+                    nextx = vop(srow2[x], vop(srow1[x], srow0[x]));
+            }
+            else
+                nextx = vop(vop(srow2 ? srow2[x + 1] : borderValue,
+                                srow0 ? srow0[x + 1] : borderValue),
+                            srow1[x + 1]);
+
+            drow[x] = vop(prevx, vop(currx, nextx));
+
+            // make shift
+            prevx = currx;
+            currx = nextx;
+        }
+    }
+}
+
+} // namespace
+
+#endif
+
+void erode3x3(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              u8 * dstBase, ptrdiff_t dstStride,
+              BORDER_MODE border, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isMorph3x3Supported(size, border));
+#ifdef CAROTENE_NEON
+    morph3x3(size,
+             srcBase, srcStride,
+             dstBase, dstStride,
+             border, ErodeVecOp(border, borderValue));
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+#endif
+}
+
+void dilate3x3(const Size2D &size,
+               const u8 * srcBase, ptrdiff_t srcStride,
+               u8 * dstBase, ptrdiff_t dstStride,
+               BORDER_MODE border, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isMorph3x3Supported(size, border));
+#ifdef CAROTENE_NEON
+    morph3x3(size,
+             srcBase, srcStride,
+             dstBase, dstStride,
+             border, DilateVecOp(border, borderValue));
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)border;
+    (void)borderValue;
+#endif
+}
+
+#ifdef CAROTENE_NEON
+namespace {
+
+template<class VecUpdate>
+void MorphRow(const u8* src, u8* dst, size_t width, s32 cn, size_t ksize)
+{
+    size_t i, j, k;
+    size_t width16 = (width & -16) * cn;
+    size_t width8 = (width & -8) * cn;
+    width *= cn;
+
+    if (ksize == 1)
+    {
+        for (i = 0; i < width; i++)
+            dst[i] = src[i];
+        return;
+    }
+
+    ksize = ksize*cn;
+    VecUpdate updateOp;
+    switch(cn)
+    {
+    case 1:
+        for (i = 0; i < width16; i += 16)
+        {
+            const u8* sptr = src + i;
+            uint8x16_t s = vld1q_u8(sptr);
+            internal::prefetch(sptr);
+
+            for( k = 1; k < ksize; ++k)
+                s = updateOp(s, vld1q_u8(sptr + k));
+
+            vst1q_u8(dst + i, s);
+        }
+
+        for (; i < width8; i += 8)
+        {
+            const u8* sptr = src + i;
+            uint8x8_t s = vld1_u8(sptr);
+            internal::prefetch(sptr);
+
+            for( k = 1; k < ksize; ++k)
+                s = updateOp(s, vld1_u8(sptr + k));
+
+            vst1_u8(dst + i, s);
+        }
+        break;
+    default:
+        for (i = 0; i < width16; i += 16)
+        {
+            uint8x16_t s = vld1q_u8(src + i);
+            internal::prefetch(src + i);
+
+            for (k = cn; k < ksize; k += cn)
+                s = updateOp(s, vld1q_u8(src + i + k));
+
+            vst1q_u8(dst + i, s);
+        }
+
+        for (; i < width8; i += 8)
+        {
+            uint8x8_t s = vld1_u8(src + i);
+            internal::prefetch(src + i);
+
+            for (k = cn; k < ksize; k += cn)
+                s = updateOp(s, vld1_u8(src + i + k));
+
+            vst1_u8(dst + i, s);
+        }
+        break;
+    }
+
+    ptrdiff_t i0 = i;
+    for( k = 0; k < (size_t)cn; k++, src++, dst++ )
+    {
+        for( i = i0; i <= width - cn*2; i += cn*2 )
+        {
+            const u8* s = src + i;
+            u8 m = s[cn];
+            for( j = cn*2; j < ksize; j += cn )
+                m = updateOp(m, s[j]);
+            dst[i] = updateOp(m, s[0]);
+            dst[i+cn] = updateOp(m, s[j]);
+        }
+
+        for( ; i < width; i += cn )
+        {
+            const u8* s = src + i;
+            u8 m = s[0];
+            for( j = cn; j < ksize; j += cn )
+                m = updateOp(m, s[j]);
+            dst[i] = m;
+        }
+    }
+}
+
+template<class VecUpdate>
+void MorphColumn(const u8** src, u8* dst, ptrdiff_t dststep, size_t count, size_t width, size_t ksize)
+{
+    size_t i, k;
+    size_t width32 = width & -32;
+    VecUpdate updateOp;
+
+    uint8x16_t x0,x1,s0,s1;
+    if (ksize == 3)
+    {
+        for (; count > 1; count -= 2, dst += dststep * 2, src += 2)
+        {
+            for (i = 0; i < width32; i += 32)
+            {
+                const u8* sptr = src[1] + i;
+                s0 = vld1q_u8(sptr);
+                s1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+
+                sptr = src[2] + i;
+                x0 = vld1q_u8(sptr);
+                x1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+
+                s0 = updateOp(s0, x0);
+                s1 = updateOp(s1, x1);
+
+                sptr = src[0] + i;
+                x0 = vld1q_u8(sptr);
+                x1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+
+                vst1q_u8(dst+i, updateOp(s0, x0));
+                vst1q_u8(dst+i+16, updateOp(s1, x1));
+
+                sptr = src[3] + i;
+                x0 = vld1q_u8(sptr);
+                x1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+                vst1q_u8(dst + dststep + i, updateOp(s0, x0));
+                vst1q_u8(dst + dststep + i + 16, updateOp(s1, x1));
+
+            }
+            for(; i < width; i++ )
+            {
+                u8 s = src[1][i];
+
+                for( k = 2; k < ksize; k++ )
+                    s = updateOp(s, src[k][i]);
+
+                dst[i] = updateOp(s, src[0][i]);
+                dst[i+dststep] = updateOp(s, src[k][i]);
+            }
+        }
+    }
+    else if (ksize > 1)
+        for (; count > 1; count -= 2, dst += dststep*2, src += 2)
+        {
+            for (i = 0; i < width32; i += 32)
+            {
+                const u8* sptr = src[1] + i;
+                s0 = vld1q_u8(sptr);
+                s1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+                for (k = 2; k < ksize; k++)
+                {
+                    sptr = src[k] + i;
+                    x0 = vld1q_u8(sptr);
+                    x1 = vld1q_u8(sptr + 16);
+                    internal::prefetch(sptr);
+
+                    s0 = updateOp(s0, x0);
+                    s1 = updateOp(s1, x1);
+                }
+
+                sptr = src[0] + i;
+                x0 = vld1q_u8(sptr);
+                x1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+
+                vst1q_u8(dst+i, updateOp(s0, x0));
+                vst1q_u8(dst+i+16, updateOp(s1, x1));
+
+                sptr = src[k] + i;
+                x0 = vld1q_u8(sptr);
+                x1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+                vst1q_u8(dst + dststep + i, updateOp(s0, x0));
+                vst1q_u8(dst + dststep + i + 16, updateOp(s1, x1));
+            }
+            for(; i < width; i++ )
+            {
+                u8 s = src[1][i];
+
+                for( k = 2; k < ksize; k++ )
+                    s = updateOp(s, src[k][i]);
+
+                dst[i] = updateOp(s, src[0][i]);
+                dst[i+dststep] = updateOp(s, src[k][i]);
+            }
+        }
+
+    for (; count > 0; count--, dst += dststep, src++)
+    {
+        for (i = 0; i < width32; i += 32)
+        {
+            const u8* sptr = src[0] + i;
+            s0 = vld1q_u8(sptr);
+            s1 = vld1q_u8(sptr + 16);
+            internal::prefetch(sptr);
+
+            for (k = 1; k < ksize; k++)
+            {
+                sptr = src[k] + i;
+                x0 = vld1q_u8(sptr);
+                x1 = vld1q_u8(sptr + 16);
+                internal::prefetch(sptr);
+                s0 = updateOp(s0, x0);
+                s1 = updateOp(s1, x1);
+            }
+
+            vst1q_u8(dst + i, s0);
+            vst1q_u8(dst + i + 16, s1);
+        }
+        for(; i < width; i++ )
+        {
+            u8 s = src[0][i];
+            for( k = 1; k < ksize; k++ )
+                s = updateOp(s, src[k][i]);
+            dst[i] = s;
+        }
+    }
+}
+
+template <class Op>
+inline void morphology(const Size2D &ssize, u32 cn,
+                       const u8 * srcBase, ptrdiff_t srcStride,
+                       u8 * dstBase, ptrdiff_t dstStride,
+                       const Size2D &ksize,
+                       size_t anchorX, size_t anchorY,
+                       BORDER_MODE rowBorderType, BORDER_MODE columnBorderType,
+                       const u8 * borderValues, Margin borderMargin)
+{
+    //Temporary buffers common for all iterations
+    std::vector<u8> _srcRow(cn*(ssize.width + ksize.width - 1));
+    u8* srcRow = &_srcRow[0];
+
+    size_t bufRows = std::max<size_t>(ksize.height + 3, std::max<size_t>(anchorY, ksize.height-anchorY-1)*2+1);
+    std::vector<u8*> _rows(bufRows);
+    u8** rows = &_rows[0];
+
+    // adjust swidthcn so that the used part of buffers stays compact in memory
+    ptrdiff_t swidthcn = cn*((ssize.width + 15) & -16);// cn * (aligned ssize.width size)
+    std::vector<u8> _ringBuf(swidthcn*bufRows+16);
+    u8 * ringBuf = internal::alignPtr(&_ringBuf[0], 16);
+
+    size_t borderLength = std::max<size_t>(ksize.width - 1, 1) * cn;
+    std::vector<ptrdiff_t> _borderTab(borderLength);
+    ptrdiff_t * borderTab = &_borderTab[0];
+
+    std::vector<u8> _constBorderValue;
+    std::vector<u8> _constBorderRow;
+    u8 * constBorderValue = NULL;
+    u8 * constBorderRow = NULL;
+    if( rowBorderType == BORDER_MODE_CONSTANT || columnBorderType == BORDER_MODE_CONSTANT )
+    {
+        _constBorderValue.resize(borderLength);
+        constBorderValue = &_constBorderValue[0];
+        size_t i;
+        for(i = 0; i < cn; i++)
+            constBorderValue[i] = borderValues[i];
+        for(; i < borderLength; i++)
+            constBorderValue[i] = constBorderValue[i-cn];
+
+        if( columnBorderType == BORDER_MODE_CONSTANT )
+        {
+            _constBorderRow.resize(cn*(ssize.width + ksize.width - 1 + 16));
+            constBorderRow = internal::alignPtr(&_constBorderRow[0], 16);
+            size_t N = (ssize.width + ksize.width - 1)*cn;
+            for( i = 0; i < N; i += borderLength )
+            {
+                size_t n = std::min( borderLength, N - i );
+                for(size_t j = 0; j < n; j++)
+                    srcRow[i+j] = constBorderValue[j];
+            }
+            MorphRow<Op>(srcRow, constBorderRow, ssize.width, cn, ksize.width);
+        }
+    }
+
+    Size2D wholeSize(ssize.width + borderMargin.left + borderMargin.right,
+                     ssize.height + borderMargin.top + borderMargin.bottom);
+
+    ptrdiff_t dx1 = std::max<ptrdiff_t>(anchorX - (ptrdiff_t)borderMargin.left, 0);
+    ptrdiff_t dx2 = std::max<ptrdiff_t>((ptrdiff_t)ksize.width - anchorX - 1 - (ptrdiff_t)borderMargin.right, 0);
+    // recompute border tables
+    if( dx1 > 0 || dx2 > 0 )
+    {
+        if( rowBorderType == BORDER_MODE_CONSTANT )
+        {
+            memcpy( srcRow, &constBorderValue[0], dx1*cn );
+            memcpy( srcRow + (ssize.width + ksize.width - 1 - dx2)*cn, &constBorderValue[0], dx2*cn );
+        }
+        else
+        {
+            ptrdiff_t xofs1 = std::min<ptrdiff_t>(borderMargin.left, anchorX) - borderMargin.left;
+
+            ptrdiff_t wholeWidth = wholeSize.width;
+
+            ptrdiff_t i, j;
+            for( i = 0; i < dx1; i++ )
+            {
+                ptrdiff_t p0 = (internal::borderInterpolate(i-dx1, wholeWidth, rowBorderType) + xofs1)*cn;
+                for( j = 0; j < (ptrdiff_t)cn; j++ )
+                    borderTab[i*cn + j] = p0 + j;
+            }
+
+            for( i = 0; i < dx2; i++ )
+            {
+                ptrdiff_t p0 = (internal::borderInterpolate(wholeWidth + i, wholeWidth, rowBorderType) + xofs1)*cn;
+                for( j = 0; j < (ptrdiff_t)cn; j++ )
+                    borderTab[(i + dx1)*cn + j] = p0 + j;
+            }
+        }
+    }
+
+    ptrdiff_t startY, startY0, endY, rowCount;
+    startY = startY0 = std::max<ptrdiff_t>(borderMargin.top - anchorY, 0);
+    endY = std::min<ptrdiff_t>(borderMargin.top + ssize.height + ksize.height - anchorY - 1, wholeSize.height);
+
+    const u8* src = srcBase + (startY - borderMargin.top)*srcStride;
+    u8* dst = dstBase;
+
+    ptrdiff_t width = ssize.width, kwidth = ksize.width;
+    ptrdiff_t kheight = ksize.height, ay = anchorY;
+    ptrdiff_t width1 = ssize.width + kwidth - 1;
+    ptrdiff_t xofs1 = std::min<ptrdiff_t>(borderMargin.left, anchorX);
+    bool makeBorder = (dx1 > 0 || dx2 > 0) && rowBorderType != BORDER_MODE_CONSTANT;
+    ptrdiff_t dy = 0, i = 0;
+
+    src -= xofs1*cn;
+    ptrdiff_t count = endY - startY;
+
+    rowCount = 0;
+    for(;; dst += dstStride*i, dy += i)
+    {
+        ptrdiff_t dcount = bufRows - ay - startY - rowCount + borderMargin.top;
+        dcount = dcount > 0 ? dcount : bufRows - kheight + 1;
+        dcount = std::min(dcount, count);
+        count -= dcount;
+        for( ; dcount-- > 0; src += srcStride )
+        {
+            ptrdiff_t bi = (startY - startY0 + rowCount) % bufRows;
+            u8* brow = ringBuf + bi*swidthcn;
+
+            if( (size_t)(++rowCount) > bufRows )
+            {
+                --rowCount;
+                ++startY;
+            }
+
+            memcpy( srcRow + dx1*cn, src, (width1 - dx2 - dx1)*cn );
+
+            if( makeBorder )
+            {
+                    for( i = 0; i < (ptrdiff_t)(dx1*cn); i++ )
+                        srcRow[i] = src[borderTab[i]];
+                    for( i = 0; i < (ptrdiff_t)(dx2*cn); i++ )
+                        srcRow[i + (width1 - dx2)*cn] = src[borderTab[i+dx1*cn]];
+            }
+
+            MorphRow<Op>(srcRow, brow, width, cn, ksize.width);
+        }
+
+        ptrdiff_t max_i = std::min<ptrdiff_t>(bufRows, ssize.height - dy + (kheight - 1));
+        for( i = 0; i < max_i; i++ )
+        {
+            ptrdiff_t srcY = internal::borderInterpolate(dy + i + borderMargin.top - ay,
+                                               wholeSize.height, columnBorderType);
+            if( srcY < 0 ) // can happen only with constant border type
+                rows[i] = constBorderRow;
+            else
+            {
+                if( srcY >= startY + rowCount )
+                    break;
+                ptrdiff_t bi = (srcY - startY0) % bufRows;
+                rows[i] = ringBuf + bi*swidthcn;
+            }
+        }
+        if( i < kheight )
+            break;
+        i -= kheight - 1;
+        MorphColumn<Op>((const u8**)rows, dst, dstStride, i, ssize.width*cn, ksize.height);
+    }
+}
+
+} // namespace
+#endif // CAROTENE_NEON
+
+void erode(const Size2D &ssize, u32 cn,
+           const u8 * srcBase, ptrdiff_t srcStride,
+           u8 * dstBase, ptrdiff_t dstStride,
+           const Size2D &ksize,
+           size_t anchorX, size_t anchorY,
+           BORDER_MODE rowBorderType, BORDER_MODE columnBorderType,
+           const u8 * borderValues, Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(ssize.width > 0 && ssize.height > 0 &&
+                                           anchorX < ksize.width && anchorY < ksize.height);
+#ifdef CAROTENE_NEON
+    morphology<ErodeVecOp>(ssize, cn, srcBase, srcStride, dstBase, dstStride,
+                           ksize, anchorX, anchorY, rowBorderType, columnBorderType,
+                           borderValues, borderMargin);
+#else
+    (void)cn;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)rowBorderType;
+    (void)columnBorderType;
+    (void)borderValues;
+    (void)borderMargin;
+#endif
+}
+
+void dilate(const Size2D &ssize, u32 cn,
+            const u8 * srcBase, ptrdiff_t srcStride,
+            u8 * dstBase, ptrdiff_t dstStride,
+            const Size2D &ksize,
+            size_t anchorX, size_t anchorY,
+            BORDER_MODE rowBorderType, BORDER_MODE columnBorderType,
+            const u8 * borderValues, Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(ssize.width > 0 && ssize.height > 0 &&
+                                           anchorX < ksize.width && anchorY < ksize.height);
+#ifdef CAROTENE_NEON
+    morphology<DilateVecOp>(ssize, cn, srcBase, srcStride, dstBase, dstStride,
+                            ksize, anchorX, anchorY, rowBorderType, columnBorderType,
+                            borderValues, borderMargin);
+#else
+    (void)cn;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)rowBorderType;
+    (void)columnBorderType;
+    (void)borderValues;
+    (void)borderMargin;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/opticalflow.cpp

@@ -0,0 +1,539 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "saturate_cast.hpp"
+#include <vector>
+#include <float.h> // For FLT_EPSILON
+
+namespace CAROTENE_NS {
+
+#define CV_DESCALE(x,n)     (((x) + (1 << ((n)-1))) >> (n))
+
+/*
+ *        Pyramidal Lucas-Kanade Optical Flow level processing
+ */
+void pyrLKOptFlowLevel(const Size2D &size, s32 cn,
+                       const u8 *prevData, ptrdiff_t prevStride,
+                       const s16 *prevDerivData, ptrdiff_t prevDerivStride,
+                       const u8 *nextData, ptrdiff_t nextStride,
+                       u32 ptCount,
+                       const f32 *prevPts, f32 *nextPts,
+                       u8 *status, f32 *err,
+                       const Size2D &winSize,
+                       u32 terminationCount, f64 terminationEpsilon,
+                       u32 level, u32 maxLevel, bool useInitialFlow, bool getMinEigenVals,
+                       f32 minEigThreshold)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    f32 halfWinX = (winSize.width-1)*0.5f, halfWinY = (winSize.height-1)*0.5f;
+    s32 cn2 = cn*2;
+
+    std::vector<s16> _buf(winSize.total()*(cn + cn2));
+    s16* IWinBuf = &_buf[0];
+    s32  IWinBufStride = winSize.width*cn;
+    s16* derivIWinBuf = &_buf[winSize.total()*cn];
+    s32  derivIWinBufStride = winSize.width*cn2;
+
+    for( u32 ptidx = 0; ptidx < ptCount; ptidx++ )
+    {
+        f32 levscale = (1./(1 << level));
+        u32 ptref = ptidx << 1;
+        f32 prevPtX = prevPts[ptref+0]*levscale;
+        f32 prevPtY = prevPts[ptref+1]*levscale;
+        f32 nextPtX;
+        f32 nextPtY;
+        if( level == maxLevel )
+        {
+            if( useInitialFlow )
+            {
+                nextPtX = nextPts[ptref+0]*levscale;
+                nextPtY = nextPts[ptref+1]*levscale;
+            }
+            else
+            {
+                nextPtX = prevPtX;
+                nextPtY = prevPtY;
+            }
+        }
+        else
+        {
+            nextPtX = nextPts[ptref+0]*2.f;
+            nextPtY = nextPts[ptref+1]*2.f;
+        }
+        nextPts[ptref+0] = nextPtX;
+        nextPts[ptref+1] = nextPtY;
+
+        s32 iprevPtX, iprevPtY;
+        s32 inextPtX, inextPtY;
+        prevPtX -= halfWinX;
+        prevPtY -= halfWinY;
+        iprevPtX = floor(prevPtX);
+        iprevPtY = floor(prevPtY);
+
+        if( iprevPtX < -(s32)winSize.width || iprevPtX >= (s32)size.width ||
+            iprevPtY < -(s32)winSize.height || iprevPtY >= (s32)size.height )
+        {
+            if( level == 0 )
+            {
+                if( status )
+                    status[ptidx] = false;
+                if( err )
+                    err[ptidx] = 0;
+            }
+            continue;
+        }
+
+        f32 a = prevPtX - iprevPtX;
+        f32 b = prevPtY - iprevPtY;
+        const s32 W_BITS = 14, W_BITS1 = 14;
+        const f32 FLT_SCALE = 1.f/(1 << 20);
+        s32 iw00 = round((1.f - a)*(1.f - b)*(1 << W_BITS));
+        s32 iw01 = round(a*(1.f - b)*(1 << W_BITS));
+        s32 iw10 = round((1.f - a)*b*(1 << W_BITS));
+        s32 iw11 = (1 << W_BITS) - iw00 - iw01 - iw10;
+
+        s32 dstep = prevDerivStride/sizeof(s16);
+        f32 A11 = 0, A12 = 0, A22 = 0;
+
+        int16x4_t viw00 = vmov_n_s16((s16)iw00);
+        int16x4_t viw01 = vmov_n_s16((s16)iw01);
+        int16x4_t viw10 = vmov_n_s16((s16)iw10);
+        int16x4_t viw11 = vmov_n_s16((s16)iw11);
+
+        float32x4_t vA11 = vmovq_n_f32(0);
+        float32x4_t vA12 = vmovq_n_f32(0);
+        float32x4_t vA22 = vmovq_n_f32(0);
+
+        s32 wwcn = winSize.width*cn;
+
+        // extract the patch from the first image, compute covariation matrix of derivatives
+        s32 x = 0;
+        for(s32 y = 0; y < (s32)winSize.height; y++ )
+        {
+            const u8* src = prevData + prevStride*(y + iprevPtY) + iprevPtX*cn;
+            const s16* dsrc = prevDerivData + dstep*(y + iprevPtY) + iprevPtX*cn2;
+
+            s16* Iptr = IWinBuf + y*IWinBufStride;
+            s16* dIptr = derivIWinBuf + y*derivIWinBufStride;
+
+            internal::prefetch(src + x + prevStride * 2, 0);
+            for(x = 0; x <= wwcn - 8; x += 8)
+            {
+                uint8x8_t vsrc00 = vld1_u8(src + x);
+                uint8x8_t vsrc10 = vld1_u8(src + x + prevStride);
+                uint8x8_t vsrc01 = vld1_u8(src + x + cn);
+                uint8x8_t vsrc11 = vld1_u8(src + x + prevStride + cn);
+
+                int16x8_t vs00 = vreinterpretq_s16_u16(vmovl_u8(vsrc00));
+                int16x8_t vs10 = vreinterpretq_s16_u16(vmovl_u8(vsrc10));
+                int16x8_t vs01 = vreinterpretq_s16_u16(vmovl_u8(vsrc01));
+                int16x8_t vs11 = vreinterpretq_s16_u16(vmovl_u8(vsrc11));
+
+                int32x4_t vsuml = vmull_s16(vget_low_s16(vs00), viw00);
+                int32x4_t vsumh = vmull_s16(vget_high_s16(vs10), viw10);
+
+                vsuml = vmlal_s16(vsuml, vget_low_s16(vs01), viw01);
+                vsumh = vmlal_s16(vsumh, vget_high_s16(vs11), viw11);
+
+                vsuml = vmlal_s16(vsuml, vget_low_s16(vs10), viw10);
+                vsumh = vmlal_s16(vsumh, vget_high_s16(vs00), viw00);
+
+                vsuml = vmlal_s16(vsuml, vget_low_s16(vs11), viw11);
+                vsumh = vmlal_s16(vsumh, vget_high_s16(vs01), viw01);
+
+                int16x4_t vsumnl = vrshrn_n_s32(vsuml, W_BITS1-5);
+                int16x4_t vsumnh = vrshrn_n_s32(vsumh, W_BITS1-5);
+
+                vst1q_s16(Iptr + x, vcombine_s16(vsumnl, vsumnh));
+            }
+            for(; x <= wwcn - 4; x += 4)
+            {
+                uint8x8_t vsrc00 = vld1_u8(src + x);
+                uint8x8_t vsrc10 = vld1_u8(src + x + prevStride);
+                uint8x8_t vsrc01 = vld1_u8(src + x + cn);
+                uint8x8_t vsrc11 = vld1_u8(src + x + prevStride + cn);
+
+                int16x4_t vs00 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(vsrc00)));
+                int16x4_t vs10 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(vsrc10)));
+                int16x4_t vs01 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(vsrc01)));
+                int16x4_t vs11 = vget_low_s16(vreinterpretq_s16_u16(vmovl_u8(vsrc11)));
+
+                int32x4_t vsuml1 = vmull_s16(vs00, viw00);
+                int32x4_t vsuml2 = vmull_s16(vs01, viw01);
+                vsuml1 = vmlal_s16(vsuml1, vs10, viw10);
+                vsuml2 = vmlal_s16(vsuml2, vs11, viw11);
+                int32x4_t vsuml = vaddq_s32(vsuml1, vsuml2);
+
+                int16x4_t vsumnl = vrshrn_n_s32(vsuml, W_BITS1-5);
+
+                vst1_s16(Iptr + x, vsumnl);
+            }
+
+            internal::prefetch(dsrc + dstep * 2, 0);
+            for(x = 0; x <= wwcn - 4; x += 4, dsrc += 4*2, dIptr += 4*2 )
+            {
+#if 0
+                __asm__ (
+                    "vld2.16 {d0-d1}, [%[dsrc00]]                         \n\t"
+                    "vld2.16 {d2-d3}, [%[dsrc10]]                         \n\t"
+                    "vld2.16 {d4-d5}, [%[dsrc01]]                         \n\t"
+                    "vld2.16 {d6-d7}, [%[dsrc11]]                         \n\t"
+                    "vmull.s16 q4, d3, %P[viw10]                           \n\t"
+                    "vmull.s16 q5, d0, %P[viw00]                           \n\t"
+                    "vmlal.s16 q4, d7, %P[viw11]                           \n\t"
+                    "vmlal.s16 q5, d4, %P[viw01]                           \n\t"
+                    "vmlal.s16 q4, d1, %P[viw00]                           \n\t"
+                    "vmlal.s16 q5, d2, %P[viw10]                           \n\t"
+                    "vmlal.s16 q4, d5, %P[viw01]                           \n\t"
+                    "vmlal.s16 q5, d6, %P[viw11]                            \n\t"
+                    "vrshrn.s32 d13, q4, %[W_BITS1]                       \n\t"
+                    "vrshrn.s32 d12, q5, %[W_BITS1]                       \n\t"
+                    "vmull.s16 q3, d13, d13                               \n\t"
+                    "vmull.s16 q4, d12, d12                               \n\t"
+                    "vmull.s16 q5, d13, d12                               \n\t"
+                    "vcvt.f32.s32 q3, q3                                  \n\t"
+                    "vcvt.f32.s32 q4, q4                                  \n\t"
+                    "vcvt.f32.s32 q5, q5                                  \n\t"
+                    "vadd.f32 %q[vA22], q3                                \n\t"
+                    "vadd.f32 %q[vA11], q4                                \n\t"
+                    "vadd.f32 %q[vA12], q5                                \n\t"
+                    "vst2.16 {d12-d13}, [%[out]]                          \n\t"
+                    : [vA22] "=w" (vA22),
+                      [vA11] "=w" (vA11),
+                      [vA12] "=w" (vA12)
+                    : "0" (vA22),
+                      "1" (vA11),
+                      "2" (vA12),
+                      [out] "r" (dIptr),
+                      [dsrc00] "r" (dsrc),
+                      [dsrc10] "r" (dsrc + dstep),
+                      [dsrc01] "r" (dsrc + cn2),
+                      [dsrc11] "r" (dsrc + dstep + cn2),
+                      [viw00] "w" (viw00),
+                      [viw10] "w" (viw10),
+                      [viw01] "w" (viw01),
+                      [viw11] "w" (viw11),
+                      [W_BITS1] "I" (W_BITS1)
+                    : "d0","d1","d2","d3","d4","d5","d6","d7","d8","d9","d10","d11","d12","d13"
+                );
+#else
+                int16x4x2_t vdsrc00 = vld2_s16(dsrc);
+                int16x4x2_t vdsrc10 = vld2_s16(dsrc + dstep);
+                int16x4x2_t vdsrc01 = vld2_s16(dsrc + cn2);
+                int16x4x2_t vdsrc11 = vld2_s16(dsrc + dstep + cn2);
+
+                int32x4_t vsumy = vmull_s16(vdsrc10.val[1], viw10);
+                int32x4_t vsumx = vmull_s16(vdsrc00.val[0], viw00);
+
+                vsumy = vmlal_s16(vsumy, vdsrc11.val[1], viw11);
+                vsumx = vmlal_s16(vsumx, vdsrc01.val[0], viw01);
+
+                vsumy = vmlal_s16(vsumy, vdsrc00.val[1], viw00);
+                vsumx = vmlal_s16(vsumx, vdsrc10.val[0], viw10);
+
+                vsumy = vmlal_s16(vsumy, vdsrc01.val[1], viw01);
+                vsumx = vmlal_s16(vsumx, vdsrc11.val[0], viw11);
+
+                int16x4_t vsumny = vrshrn_n_s32(vsumy, W_BITS1);
+                int16x4_t vsumnx = vrshrn_n_s32(vsumx, W_BITS1);
+
+                int32x4_t va22i = vmull_s16(vsumny, vsumny);
+                int32x4_t va11i = vmull_s16(vsumnx, vsumnx);
+                int32x4_t va12i = vmull_s16(vsumnx, vsumny);
+
+                float32x4_t va22f = vcvtq_f32_s32(va22i);
+                float32x4_t va11f = vcvtq_f32_s32(va11i);
+                float32x4_t va12f = vcvtq_f32_s32(va12i);
+
+                vA22 = vaddq_f32(vA22, va22f);
+                vA11 = vaddq_f32(vA11, va11f);
+                vA12 = vaddq_f32(vA12, va12f);
+
+                int16x4x2_t vsum;
+                vsum.val[0] = vsumnx;
+                vsum.val[1] = vsumny;
+                vst2_s16(dIptr, vsum);
+#endif
+            }
+
+            for( ; x < wwcn; x++, dsrc += 2, dIptr += 2 )
+            {
+                s32 ival = CV_DESCALE(src[x]*iw00 + src[x+cn]*iw01 +
+                                      src[x+prevStride]*iw10 + src[x+prevStride+cn]*iw11, W_BITS1-5);
+                s32 ixval = CV_DESCALE(dsrc[0]*iw00 + dsrc[cn2]*iw01 +
+                                       dsrc[dstep]*iw10 + dsrc[dstep+cn2]*iw11, W_BITS1);
+                s32 iyval = CV_DESCALE(dsrc[1]*iw00 + dsrc[cn2+1]*iw01 + dsrc[dstep+1]*iw10 +
+                                       dsrc[dstep+cn2+1]*iw11, W_BITS1);
+                Iptr[x] = (s16)ival;
+                dIptr[0] = (s16)ixval;
+                dIptr[1] = (s16)iyval;
+
+                A11 += (f32)(ixval*ixval);
+                A12 += (f32)(ixval*iyval);
+                A22 += (f32)(iyval*iyval);
+            }
+        }
+
+        f32 A11buf[2], A12buf[2], A22buf[2];
+        vst1_f32(A11buf, vadd_f32(vget_low_f32(vA11), vget_high_f32(vA11)));
+        vst1_f32(A12buf, vadd_f32(vget_low_f32(vA12), vget_high_f32(vA12)));
+        vst1_f32(A22buf, vadd_f32(vget_low_f32(vA22), vget_high_f32(vA22)));
+        A11 += A11buf[0] + A11buf[1];
+        A12 += A12buf[0] + A12buf[1];
+        A22 += A22buf[0] + A22buf[1];
+
+        A11 *= FLT_SCALE;
+        A12 *= FLT_SCALE;
+        A22 *= FLT_SCALE;
+
+        f32 D = A11*A22 - A12*A12;
+        f32 minEig = (A22 + A11 - std::sqrt((A11-A22)*(A11-A22) +
+                        4.f*A12*A12))/(2*winSize.width*winSize.height);
+
+        if( err && getMinEigenVals )
+            err[ptidx] = (f32)minEig;
+
+        if( minEig < minEigThreshold || D < FLT_EPSILON )
+        {
+            if( level == 0 && status )
+                status[ptidx] = false;
+            continue;
+        }
+
+        D = 1.f/D;
+
+        nextPtX -= halfWinX;
+        nextPtY -= halfWinY;
+        f32 prevDeltaX = 0;
+        f32 prevDeltaY = 0;
+
+        for(u32 j = 0; j < terminationCount; j++ )
+        {
+            inextPtX = floor(nextPtX);
+            inextPtY = floor(nextPtY);
+
+            if( inextPtX < -(s32)winSize.width || inextPtX >= (s32)size.width ||
+               inextPtY < -(s32)winSize.height || inextPtY >= (s32)size.height )
+            {
+                if( level == 0 && status )
+                    status[ptidx] = false;
+                break;
+            }
+
+            a = nextPtX - inextPtX;
+            b = nextPtY - inextPtY;
+            iw00 = round((1.f - a)*(1.f - b)*(1 << W_BITS));
+            iw01 = round(a*(1.f - b)*(1 << W_BITS));
+            iw10 = round((1.f - a)*b*(1 << W_BITS));
+            iw11 = (1 << W_BITS) - iw00 - iw01 - iw10;
+            f32 b1 = 0, b2 = 0;
+
+            viw00 = vmov_n_s16((s16)iw00);
+            viw01 = vmov_n_s16((s16)iw01);
+            viw10 = vmov_n_s16((s16)iw10);
+            viw11 = vmov_n_s16((s16)iw11);
+
+            float32x4_t vb1 = vmovq_n_f32(0);
+            float32x4_t vb2 = vmovq_n_f32(0);
+
+            for(s32 y = 0; y < (s32)winSize.height; y++ )
+            {
+                const u8* Jptr = nextData + nextStride*(y + inextPtY) + inextPtX*cn;
+                const s16* Iptr = IWinBuf + y*IWinBufStride;
+                const s16* dIptr = derivIWinBuf + y*derivIWinBufStride;
+
+                x = 0;
+
+                internal::prefetch(Jptr, nextStride * 2);
+                internal::prefetch(Iptr, IWinBufStride/2);
+                internal::prefetch(dIptr, derivIWinBufStride/2);
+
+                for( ; x <= wwcn - 8; x += 8, dIptr += 8*2 )
+                {
+                    uint8x8_t vj00 = vld1_u8(Jptr + x);
+                    uint8x8_t vj10 = vld1_u8(Jptr + x + nextStride);
+                    uint8x8_t vj01 = vld1_u8(Jptr + x + cn);
+                    uint8x8_t vj11 = vld1_u8(Jptr + x + nextStride + cn);
+                    int16x8_t vI = vld1q_s16(Iptr + x);
+                    int16x8x2_t vDerivI = vld2q_s16(dIptr);
+
+                    int16x8_t vs00 = vreinterpretq_s16_u16(vmovl_u8(vj00));
+                    int16x8_t vs10 = vreinterpretq_s16_u16(vmovl_u8(vj10));
+                    int16x8_t vs01 = vreinterpretq_s16_u16(vmovl_u8(vj01));
+                    int16x8_t vs11 = vreinterpretq_s16_u16(vmovl_u8(vj11));
+
+                    int32x4_t vsuml = vmull_s16(vget_low_s16(vs00), viw00);
+                    int32x4_t vsumh = vmull_s16(vget_high_s16(vs10), viw10);
+
+                    vsuml = vmlal_s16(vsuml, vget_low_s16(vs01), viw01);
+                    vsumh = vmlal_s16(vsumh, vget_high_s16(vs11), viw11);
+
+                    vsuml = vmlal_s16(vsuml, vget_low_s16(vs10), viw10);
+                    vsumh = vmlal_s16(vsumh, vget_high_s16(vs00), viw00);
+
+                    vsuml = vmlal_s16(vsuml, vget_low_s16(vs11), viw11);
+                    vsumh = vmlal_s16(vsumh, vget_high_s16(vs01), viw01);
+
+                    int16x4_t vsumnl = vrshrn_n_s32(vsuml, W_BITS1-5);
+                    int16x4_t vsumnh = vrshrn_n_s32(vsumh, W_BITS1-5);
+
+                    int16x8_t diff = vqsubq_s16(vcombine_s16(vsumnl, vsumnh), vI);
+
+                    int32x4_t vb1l = vmull_s16(vget_low_s16(diff), vget_low_s16(vDerivI.val[0]));
+                    int32x4_t vb2h = vmull_s16(vget_high_s16(diff), vget_high_s16(vDerivI.val[1]));
+                    int32x4_t vb1i = vmlal_s16(vb1l, vget_high_s16(diff), vget_high_s16(vDerivI.val[0]));
+                    int32x4_t vb2i = vmlal_s16(vb2h, vget_low_s16(diff), vget_low_s16(vDerivI.val[1]));
+
+                    float32x4_t vb1f = vcvtq_f32_s32(vb1i);
+                    float32x4_t vb2f = vcvtq_f32_s32(vb2i);
+
+                    vb1 = vaddq_f32(vb1, vb1f);
+                    vb2 = vaddq_f32(vb2, vb2f);
+                }
+
+                for( ; x < wwcn; x++, dIptr += 2 )
+                {
+                    s32 diff = CV_DESCALE(Jptr[x]*iw00 + Jptr[x+cn]*iw01 +
+                                          Jptr[x+nextStride]*iw10 + Jptr[x+nextStride+cn]*iw11,
+                                          W_BITS1-5) - Iptr[x];
+                    b1 += (f32)(diff*dIptr[0]);
+                    b2 += (f32)(diff*dIptr[1]);
+                }
+            }
+
+            f32 bbuf[2];
+            float32x2_t vb = vpadd_f32(vadd_f32(vget_low_f32(vb1), vget_high_f32(vb1)), vadd_f32(vget_low_f32(vb2), vget_high_f32(vb2)));
+            vst1_f32(bbuf, vb);
+            b1 += bbuf[0];
+            b2 += bbuf[1];
+
+            b1 *= FLT_SCALE;
+            b2 *= FLT_SCALE;
+
+            f32 deltaX = (f32)((A12*b2 - A22*b1) * D);
+            f32 deltaY = (f32)((A12*b1 - A11*b2) * D);
+
+            nextPtX += deltaX;
+            nextPtY += deltaY;
+            nextPts[ptref+0] = nextPtX + halfWinX;
+            nextPts[ptref+1] = nextPtY + halfWinY;
+
+            if( ((double)deltaX*deltaX + (double)deltaY*deltaY) <= terminationEpsilon )
+                break;
+
+            if( j > 0 && std::abs(deltaX + prevDeltaX) < 0.01 &&
+               std::abs(deltaY + prevDeltaY) < 0.01 )
+            {
+                nextPts[ptref+0] -= deltaX*0.5f;
+                nextPts[ptref+1] -= deltaY*0.5f;
+                break;
+            }
+            prevDeltaX = deltaX;
+            prevDeltaY = deltaY;
+        }
+
+        if( status && status[ptidx] && err && level == 0 && !getMinEigenVals )
+        {
+            f32 nextPointX = nextPts[ptref+0] - halfWinX;
+            f32 nextPointY = nextPts[ptref+1] - halfWinY;
+
+            s32 inextPointX = floor(nextPointX);
+            s32 inextPointY = floor(nextPointY);
+
+            if( inextPointX < -(s32)winSize.width || inextPointX >= (s32)size.width ||
+                inextPointY < -(s32)winSize.height || inextPointY >= (s32)size.height )
+            {
+                if( status )
+                    status[ptidx] = false;
+                continue;
+            }
+
+            f32 aa = nextPointX - inextPointX;
+            f32 bb = nextPointY - inextPointY;
+            iw00 = round((1.f - aa)*(1.f - bb)*(1 << W_BITS));
+            iw01 = round(aa*(1.f - bb)*(1 << W_BITS));
+            iw10 = round((1.f - aa)*bb*(1 << W_BITS));
+            iw11 = (1 << W_BITS) - iw00 - iw01 - iw10;
+            f32 errval = 0.f;
+
+            for(s32 y = 0; y < (s32)winSize.height; y++ )
+            {
+                const u8* Jptr = nextData + nextStride*(y + inextPointY) + inextPointX*cn;
+                const s16* Iptr = IWinBuf + y*IWinBufStride;
+
+                for( x = 0; x < wwcn; x++ )
+                {
+                    s32 diff = CV_DESCALE(Jptr[x]*iw00 + Jptr[x+cn]*iw01 +
+                                          Jptr[x+nextStride]*iw10 + Jptr[x+nextStride+cn]*iw11,
+                                          W_BITS1-5) - Iptr[x];
+                    errval += std::abs((f32)diff);
+                }
+            }
+            err[ptidx] = errval / (32*wwcn*winSize.height);
+        }
+    }
+#else
+    (void)size;
+    (void)cn;
+    (void)prevData;
+    (void)prevStride;
+    (void)prevDerivData;
+    (void)prevDerivStride;
+    (void)nextData;
+    (void)nextStride;
+    (void)prevPts;
+    (void)nextPts;
+    (void)status;
+    (void)err;
+    (void)winSize;
+    (void)terminationCount;
+    (void)terminationEpsilon;
+    (void)level;
+    (void)maxLevel;
+    (void)useInitialFlow;
+    (void)getMinEigenVals;
+    (void)minEigThreshold;
+    (void)ptCount;
+#endif
+}
+
+}//CAROTENE_NS
+

libs/opencv/3rdparty/carotene/src/phase.cpp

@@ -0,0 +1,274 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include <cfloat>
+#include <cmath>
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+#define FASTATAN2CONST(scale) \
+        f32 P1((f32)( 0.9997878412794807  * (180.0 / M_PI) * scale)), \
+        P3((f32)(-0.3258083974640975  * (180.0 / M_PI) * scale)), \
+        P5((f32)( 0.1555786518463281  * (180.0 / M_PI) * scale)), \
+        P7((f32)(-0.04432655554792128 * (180.0 / M_PI) * scale)), \
+         A_90((f32)(90.f * scale)), \
+        A_180((f32)(180.f * scale)), \
+        A_360((f32)(360.f * scale)); \
+        float32x4_t eps(vdupq_n_f32((float)DBL_EPSILON)), \
+         _90(vdupq_n_f32(A_90)), \
+        _180(vdupq_n_f32(A_180)), \
+        _360(vdupq_n_f32(A_360)), \
+           z(vdupq_n_f32(0.0f)), \
+        p1(vdupq_n_f32(P1)), \
+        p3(vdupq_n_f32(P3)), \
+        p5(vdupq_n_f32(P5)), \
+        p7(vdupq_n_f32(P7));
+
+#define FASTATAN2SCALAR(y, x, a) \
+    { \
+        f32 ax = std::abs(x), ay = std::abs(y); \
+        f32 c, c2; \
+        if (ax >= ay) \
+        { \
+            c = ay / (ax + (float)DBL_EPSILON); \
+            c2 = c * c; \
+            a = (((P7 * c2 + P5) * c2 + P3) * c2 + P1) * c; \
+        } \
+        else \
+        { \
+            c = ax / (ay + (float)DBL_EPSILON); \
+            c2 = c * c; \
+            a = A_90 - (((P7 * c2 + P5) * c2 + P3) * c2 + P1) * c; \
+        } \
+        if (x < 0) \
+            a = A_180 - a; \
+        if (y < 0) \
+            a = A_360 - a; \
+    }
+
+#define FASTATAN2VECTOR(v_y, v_x, a) \
+    { \
+        float32x4_t ax = vabsq_f32(v_x), ay = vabsq_f32(v_y); \
+        float32x4_t tmin = vminq_f32(ax, ay), tmax = vmaxq_f32(ax, ay); \
+        float32x4_t c = vmulq_f32(tmin, internal::vrecpq_f32(vaddq_f32(tmax, eps))); \
+        float32x4_t c2 = vmulq_f32(c, c); \
+        a = vmulq_f32(c2, p7); \
+ \
+        a = vmulq_f32(vaddq_f32(a, p5), c2); \
+        a = vmulq_f32(vaddq_f32(a, p3), c2); \
+        a = vmulq_f32(vaddq_f32(a, p1), c); \
+ \
+        a = vbslq_f32(vcgeq_f32(ax, ay), a, vsubq_f32(_90, a)); \
+        a = vbslq_f32(vcltq_f32(v_x, z), vsubq_f32(_180, a), a); \
+        a = vbslq_f32(vcltq_f32(v_y, z), vsubq_f32(_360, a), a); \
+ \
+    }
+
+} // namespace
+
+#endif
+
+void phase(const Size2D &size,
+           const s16 * src0Base, ptrdiff_t src0Stride,
+           const s16 * src1Base, ptrdiff_t src1Stride,
+           u8 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    FASTATAN2CONST(256.0f / 360.0f)
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    float32x4_t v_05 = vdupq_n_f32(0.5f);
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const s16 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const s16 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        u8 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw16; j += 16)
+        {
+            internal::prefetch(src0 + j);
+            internal::prefetch(src1 + j);
+
+            int16x8_t v_src00 = vld1q_s16(src0 + j), v_src01 = vld1q_s16(src0 + j + 8);
+            int16x8_t v_src10 = vld1q_s16(src1 + j), v_src11 = vld1q_s16(src1 + j + 8);
+
+            // 0
+            float32x4_t v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src00)));
+            float32x4_t v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src10)));
+            float32x4_t v_dst32f0;
+            FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f0)
+
+            v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src00)));
+            v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src10)));
+            float32x4_t v_dst32f1;
+            FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f1)
+
+            uint16x8_t v_dst16s0 = vcombine_u16(vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f0, v_05))),
+                                                vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f1, v_05))));
+
+            // 1
+            v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src01)));
+            v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src11)));
+            FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f0)
+
+            v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src01)));
+            v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src11)));
+            FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f1)
+
+            uint16x8_t v_dst16s1 = vcombine_u16(vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f0, v_05))),
+                                                vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f1, v_05))));
+
+            vst1q_u8(dst + j, vcombine_u8(vmovn_u16(v_dst16s0),
+                                          vmovn_u16(v_dst16s1)));
+        }
+        for (; j < roiw8; j += 8)
+        {
+            int16x8_t v_src0 = vld1q_s16(src0 + j);
+            int16x8_t v_src1 = vld1q_s16(src1 + j);
+
+            float32x4_t v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src0)));
+            float32x4_t v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src1)));
+            float32x4_t v_dst32f0;
+            FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f0)
+
+            v_src0_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src0)));
+            v_src1_p = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src1)));
+            float32x4_t v_dst32f1;
+            FASTATAN2VECTOR(v_src1_p, v_src0_p, v_dst32f1)
+
+            uint16x8_t v_dst = vcombine_u16(vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f0, v_05))),
+                                            vmovn_u32(vcvtq_u32_f32(vaddq_f32(v_dst32f1, v_05))));
+
+            vst1_u8(dst + j, vmovn_u16(v_dst));
+        }
+
+        for (; j < size.width; j++)
+        {
+            f32 x = src0[j], y = src1[j];
+            f32 a;
+            FASTATAN2SCALAR(y, x, a)
+            dst[j] = (u8)(s32)floor(a + 0.5f);
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void phase(const Size2D &size,
+           const f32 * src0Base, ptrdiff_t src0Stride,
+           const f32 * src1Base, ptrdiff_t src1Stride,
+           f32 * dstBase, ptrdiff_t dstStride,
+           f32 scale)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    FASTATAN2CONST(scale)
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const f32 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const f32 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        f32 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw8; j += 8)
+        {
+            internal::prefetch(src0 + j);
+            internal::prefetch(src1 + j);
+
+            float32x4_t v_src00 = vld1q_f32(src0 + j), v_src01 = vld1q_f32(src0 + j + 4);
+            float32x4_t v_src10 = vld1q_f32(src1 + j), v_src11 = vld1q_f32(src1 + j + 4);
+
+            float32x4_t v_dst32f;
+            // 0
+            FASTATAN2VECTOR(v_src10, v_src00, v_dst32f)
+            vst1q_f32(dst + j,     v_dst32f);
+            // 1
+            FASTATAN2VECTOR(v_src11, v_src01, v_dst32f)
+            vst1q_f32(dst + j + 4, v_dst32f);
+        }
+        if(j + 4 <= size.width)
+        {
+            float32x4_t v_src0 = vld1q_f32(src0 + j);
+            float32x4_t v_src1 = vld1q_f32(src1 + j);
+
+            float32x4_t v_dst32f;
+            FASTATAN2VECTOR(v_src1, v_src0, v_dst32f)
+            vst1q_f32(dst + j, v_dst32f);
+            j += 4;
+        }
+
+        for (; j < size.width; j++)
+        {
+            f32 a;
+            FASTATAN2SCALAR(src1[j], src0[j], a)
+            dst[j] = a;
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)scale;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/reduce.cpp

@@ -0,0 +1,460 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+void reduceColSum(const Size2D &size,
+                  const u8 * srcBase, ptrdiff_t srcStride,
+                  s32 * dstBase)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    memset(dstBase, 0, size.width*sizeof(s32));
+    size_t i = 0;
+    for (; i + 16 <= size.width; i += 16)
+    {
+        const u8* src_address = srcBase + i;
+
+        int32x4_t sll = vmovq_n_s32(0);
+        int32x4_t slh = vmovq_n_s32(0);
+        int32x4_t shl = vmovq_n_s32(0);
+        int32x4_t shh = vmovq_n_s32(0);
+
+        for (size_t h = 0; h < size.height; h += 256)
+        {
+            size_t lim = std::min(h + 256, size.height);
+
+            uint16x8_t sl = vmovq_n_u16(0);
+            uint16x8_t sh = vmovq_n_u16(0);
+
+            for (size_t k = h; k < lim; ++k, src_address += srcStride)
+            {
+                internal::prefetch(src_address + srcStride, 0);
+
+                uint8x16_t v = vld1q_u8(src_address);
+
+                sl = vaddw_u8(sl, vget_low_u8(v));
+                sh = vaddw_u8(sh, vget_high_u8(v));
+            }
+
+            int32x4_t vsll = vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(sl)));
+            int32x4_t vslh = vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(sl)));
+            int32x4_t vshl = vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(sh)));
+            int32x4_t vshh = vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(sh)));
+
+            sll = vqaddq_s32(sll, vsll);
+            slh = vqaddq_s32(slh, vslh);
+            shl = vqaddq_s32(shl, vshl);
+            shh = vqaddq_s32(shh, vshh);
+        }
+
+        vst1q_s32(dstBase + i + 0, sll);
+        vst1q_s32(dstBase + i + 4, slh);
+        vst1q_s32(dstBase + i + 8, shl);
+        vst1q_s32(dstBase + i + 12, shh);
+    }
+
+    for(size_t h = 0; h < size.height; ++h)
+    {
+        for(size_t j = i ; j < size.width; j++ )
+        {
+            if (((u32)(dstBase[j] += srcBase[j + srcStride * h])) > 0x7fFFffFFu)
+                dstBase[j] = 0x7fFFffFF;
+        }
+    }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+#endif
+}
+
+void reduceColMax(const Size2D &size,
+                  const u8 * srcBase, ptrdiff_t srcStride,
+                  u8 * dstBase)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    memcpy(dstBase, srcBase, size.width);
+    size_t i = 0;
+    for (; i + 16*4 <= size.width; i += 16*4)
+    {
+        const u8* src_address = srcBase + i;
+
+        uint8x16_t s1 = vld1q_u8(src_address + 0);
+        uint8x16_t s2 = vld1q_u8(src_address + 16);
+        uint8x16_t s3 = vld1q_u8(src_address + 32);
+        uint8x16_t s4 = vld1q_u8(src_address + 48);
+
+        src_address += srcStride;
+
+        for(size_t h = 1; h < size.height; ++h, src_address += srcStride)
+        {
+            internal::prefetch(src_address + srcStride, 0);
+            internal::prefetch(src_address + srcStride, 32);
+
+            uint8x16_t v1 = vld1q_u8(src_address + 0);
+            uint8x16_t v2 = vld1q_u8(src_address + 16);
+            uint8x16_t v3 = vld1q_u8(src_address + 32);
+            uint8x16_t v4 = vld1q_u8(src_address + 48);
+
+            s1 = vmaxq_u8(s1, v1);
+            s2 = vmaxq_u8(s2, v2);
+            s3 = vmaxq_u8(s3, v3);
+            s4 = vmaxq_u8(s4, v4);
+        }
+
+        vst1q_u8(dstBase + i + 0, s1);
+        vst1q_u8(dstBase + i + 16, s2);
+        vst1q_u8(dstBase + i + 32, s3);
+        vst1q_u8(dstBase + i + 48, s4);
+    }
+
+    for (; i + 16 <= size.width; i += 16)
+    {
+        const u8* src_address = srcBase + i;
+        uint8x16_t s1 = vld1q_u8(src_address);
+        src_address += srcStride;
+        for(size_t h = 1; h < size.height; ++h, src_address += srcStride)
+        {
+            internal::prefetch(src_address + srcStride, 0);
+
+            uint8x16_t v1 = vld1q_u8(src_address);
+            s1 = vmaxq_u8(s1, v1);
+        }
+        vst1q_u8(dstBase + i, s1);
+    }
+
+    if (i < size.width)
+        for(size_t h = 1; h < size.height; ++h)
+            for(size_t j = i ; j < size.width; j++ )
+                dstBase[j] = std::max(dstBase[j], srcBase[j + srcStride * h]);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+#endif
+}
+
+void reduceColMin(const Size2D &size,
+                  const u8 * srcBase, ptrdiff_t srcStride,
+                  u8 * dstBase)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    memcpy(dstBase, srcBase, size.width);
+    size_t i = 0;
+    for (; i + 16*4 <= size.width; i += 16*4)
+    {
+        const u8* src_address = srcBase + i;
+
+        uint8x16_t s1 = vld1q_u8(src_address + 0);
+        uint8x16_t s2 = vld1q_u8(src_address + 16);
+        uint8x16_t s3 = vld1q_u8(src_address + 32);
+        uint8x16_t s4 = vld1q_u8(src_address + 48);
+
+        src_address += srcStride;
+
+        for(size_t h = 1; h < size.height; ++h, src_address += srcStride)
+        {
+            internal::prefetch(src_address + srcStride, 0);
+            internal::prefetch(src_address + srcStride, 32);
+
+            uint8x16_t v1 = vld1q_u8(src_address + 0);
+            uint8x16_t v2 = vld1q_u8(src_address + 16);
+            uint8x16_t v3 = vld1q_u8(src_address + 32);
+            uint8x16_t v4 = vld1q_u8(src_address + 48);
+
+            s1 = vminq_u8(s1, v1);
+            s2 = vminq_u8(s2, v2);
+            s3 = vminq_u8(s3, v3);
+            s4 = vminq_u8(s4, v4);
+        }
+
+        vst1q_u8(dstBase + i + 0, s1);
+        vst1q_u8(dstBase + i + 16, s2);
+        vst1q_u8(dstBase + i + 32, s3);
+        vst1q_u8(dstBase + i + 48, s4);
+    }
+
+    for (; i + 16 <= size.width; i += 16)
+    {
+        const u8* src_address = srcBase + i;
+        uint8x16_t s1 = vld1q_u8(src_address);
+        src_address += srcStride;
+        for(size_t h = 1; h < size.height; ++h, src_address += srcStride)
+        {
+            internal::prefetch(src_address + srcStride, 0);
+
+            uint8x16_t v1 = vld1q_u8(src_address);
+            s1 = vminq_u8(s1, v1);
+        }
+        vst1q_u8(dstBase + i, s1);
+    }
+
+    if (i < size.width)
+        for(size_t h = 1; h < size.height; ++h)
+            for(size_t j = i ; j < size.width; j++ )
+                dstBase[j] = std::min(dstBase[j], srcBase[j + srcStride * h]);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+#endif
+}
+
+void reduceColSum(const Size2D &size,
+                  const f32 * srcBase, ptrdiff_t srcStride,
+                  f32 * dstBase)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    memcpy(dstBase, srcBase, size.width*sizeof(f32));
+    size_t srcstep = srcStride/sizeof(f32);
+    size_t i = 0;
+    for (; i + 16 <= size.width; i += 16)
+    {
+        const f32* src_address = srcBase + i;
+
+        float32x4_t s1 = vld1q_f32(src_address + 0);
+        float32x4_t s2 = vld1q_f32(src_address + 4);
+        float32x4_t s3 = vld1q_f32(src_address + 8);
+        float32x4_t s4 = vld1q_f32(src_address + 12);
+
+        src_address += srcstep;
+
+        for(size_t h = 1; h < size.height; ++h, src_address += srcstep)
+        {
+            internal::prefetch(src_address + srcstep, 0);
+            internal::prefetch(src_address + srcstep, 32);
+
+            float32x4_t v1 = vld1q_f32(src_address + 0);
+            float32x4_t v2 = vld1q_f32(src_address + 4);
+            float32x4_t v3 = vld1q_f32(src_address + 8);
+            float32x4_t v4 = vld1q_f32(src_address + 12);
+
+            s1 = vaddq_f32(s1, v1);
+            s2 = vaddq_f32(s2, v2);
+            s3 = vaddq_f32(s3, v3);
+            s4 = vaddq_f32(s4, v4);
+        }
+
+        vst1q_f32(dstBase + i + 0, s1);
+        vst1q_f32(dstBase + i + 4, s2);
+        vst1q_f32(dstBase + i + 8, s3);
+        vst1q_f32(dstBase + i + 12, s4);
+    }
+
+    for (; i + 4 <= size.width; i += 4)
+    {
+        const f32* src_address = srcBase + i;
+        float32x4_t s1 = vld1q_f32(src_address);
+        src_address += srcstep;
+        for(size_t h = 1; h < size.height; ++h, src_address += srcstep)
+        {
+            internal::prefetch(src_address + srcstep, 0);
+
+            float32x4_t v1 = vld1q_f32(src_address);
+            s1 = vaddq_f32(s1, v1);
+        }
+        vst1q_f32(dstBase + i, s1);
+    }
+
+    if (i < size.width)
+        for(size_t h = 1; h < size.height; ++h)
+        {
+            for(size_t j = i ; j < size.width; j++ )
+            {
+                dstBase[j] += srcBase[j + srcstep * h];
+            }
+        }
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+#endif
+}
+
+void reduceColMax(const Size2D &size,
+                  const f32 * srcBase, ptrdiff_t srcStride,
+                  f32 * dstBase)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    memcpy(dstBase, srcBase, size.width*sizeof(f32));
+    size_t srcstep = srcStride/sizeof(f32);
+    size_t i = 0;
+    for (; i + 16 <= size.width; i += 16)
+    {
+        const f32* src_address = srcBase + i;
+
+        float32x4_t s1 = vld1q_f32(src_address + 0);
+        float32x4_t s2 = vld1q_f32(src_address + 4);
+        float32x4_t s3 = vld1q_f32(src_address + 8);
+        float32x4_t s4 = vld1q_f32(src_address + 12);
+
+        src_address += srcstep;
+
+        for(size_t h = 1; h < size.height; ++h, src_address += srcstep)
+        {
+            internal::prefetch(src_address + srcstep, 0);
+            internal::prefetch(src_address + srcstep, 32);
+
+            float32x4_t v1 = vld1q_f32(src_address + 0);
+            float32x4_t v2 = vld1q_f32(src_address + 4);
+            float32x4_t v3 = vld1q_f32(src_address + 8);
+            float32x4_t v4 = vld1q_f32(src_address + 12);
+
+            s1 = vmaxq_f32(s1, v1);
+            s2 = vmaxq_f32(s2, v2);
+            s3 = vmaxq_f32(s3, v3);
+            s4 = vmaxq_f32(s4, v4);
+        }
+
+        vst1q_f32(dstBase + i + 0, s1);
+        vst1q_f32(dstBase + i + 4, s2);
+        vst1q_f32(dstBase + i + 8, s3);
+        vst1q_f32(dstBase + i + 12, s4);
+    }
+
+    for (; i + 4 <= size.width; i += 4)
+    {
+        const f32* src_address = srcBase + i;
+        float32x4_t s1 = vld1q_f32(src_address);
+        src_address += srcstep;
+        for(size_t h = 1; h < size.height; ++h, src_address += srcstep)
+        {
+            internal::prefetch(src_address + srcstep, 0);
+
+            float32x4_t v1 = vld1q_f32(src_address);
+            s1 = vmaxq_f32(s1, v1);
+        }
+        vst1q_f32(dstBase + i, s1);
+    }
+
+    if (i < size.width)
+        for(size_t h = 1; h < size.height; ++h)
+            for(size_t j = i ; j < size.width; j++ )
+                dstBase[j] = std::max(dstBase[j], srcBase[j + srcstep * h]);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+#endif
+}
+
+void reduceColMin(const Size2D &size,
+                  const f32 * srcBase, ptrdiff_t srcStride,
+                  f32 * dstBase)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    memcpy(dstBase, srcBase, size.width*sizeof(f32));
+    size_t srcstep = srcStride/sizeof(f32);
+    size_t i = 0;
+    for (; i + 16 <= size.width; i += 16)
+    {
+        const f32* src_address = srcBase + i;
+
+        float32x4_t s1 = vld1q_f32(src_address + 0);
+        float32x4_t s2 = vld1q_f32(src_address + 4);
+        float32x4_t s3 = vld1q_f32(src_address + 8);
+        float32x4_t s4 = vld1q_f32(src_address + 12);
+
+        src_address += srcstep;
+
+        for(size_t h = 1; h < size.height; ++h, src_address += srcstep)
+        {
+            internal::prefetch(src_address + srcstep, 0);
+            internal::prefetch(src_address + srcstep, 32);
+
+            float32x4_t v1 = vld1q_f32(src_address + 0);
+            float32x4_t v2 = vld1q_f32(src_address + 4);
+            float32x4_t v3 = vld1q_f32(src_address + 8);
+            float32x4_t v4 = vld1q_f32(src_address + 12);
+
+            s1 = vminq_f32(s1, v1);
+            s2 = vminq_f32(s2, v2);
+            s3 = vminq_f32(s3, v3);
+            s4 = vminq_f32(s4, v4);
+        }
+
+        vst1q_f32(dstBase + i + 0, s1);
+        vst1q_f32(dstBase + i + 4, s2);
+        vst1q_f32(dstBase + i + 8, s3);
+        vst1q_f32(dstBase + i + 12, s4);
+    }
+
+    for (; i + 4 <= size.width; i += 4)
+    {
+        const f32* src_address = srcBase + i;
+        float32x4_t s1 = vld1q_f32(src_address);
+        src_address += srcstep;
+        for(size_t h = 1; h < size.height; ++h, src_address += srcstep)
+        {
+            internal::prefetch(src_address + srcstep, 0);
+
+            float32x4_t v1 = vld1q_f32(src_address);
+            s1 = vminq_f32(s1, v1);
+        }
+        vst1q_f32(dstBase + i, s1);
+    }
+
+    if (i < size.width)
+        for(size_t h = 1; h < size.height; ++h)
+            for(size_t j = i ; j < size.width; j++ )
+                dstBase[j] = std::min(dstBase[j], srcBase[j + srcstep * h]);
+#else
+    (void)size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/remap.cpp

@@ -0,0 +1,694 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "remap.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace internal {
+
+void remapNearestNeighborReplicate(const Size2D size,
+                                   const u8 * srcBase,
+                                   const s32 * map,
+                                   u8 * dstBase, ptrdiff_t dstStride)
+{
+    for (size_t y = 0; y < size.height; ++y)
+    {
+        const s32 * map_row = internal::getRowPtr(map, size.width * sizeof(s32), y);
+        u8 * dst_row = internal::getRowPtr(dstBase, dstStride, y);
+
+        for (size_t x = 0; x < size.width; ++x)
+        {
+            dst_row[x] = srcBase[map_row[x]];
+        }
+    }
+}
+
+void remapNearestNeighborConst(const Size2D size,
+                               const u8 * srcBase,
+                               const s32 * map,
+                               u8 * dstBase, ptrdiff_t dstStride,
+                               u8 borderValue)
+{
+    for (size_t y = 0; y < size.height; ++y)
+    {
+        const s32 * map_row = internal::getRowPtr(map, size.width * sizeof(s32), y);
+        u8 * dst_row = internal::getRowPtr(dstBase, dstStride, y);
+
+        for (size_t x = 0; x < size.width; ++x)
+        {
+            s32 src_idx = map_row[x];
+            dst_row[x] = src_idx >= 0 ? srcBase[map_row[x]] : borderValue;
+        }
+    }
+}
+
+void remapLinearReplicate(const Size2D size,
+                          const u8 * srcBase,
+                          const s32 * map,
+                          const f32 * coeffs,
+                          u8 * dstBase, ptrdiff_t dstStride)
+{
+    int16x8_t v_zero16 = vdupq_n_s16(0);
+
+    for (size_t y = 0; y < size.height; ++y)
+    {
+        const s32 * map_row = internal::getRowPtr(map, size.width * sizeof(s32) * 4, y);
+        const f32 * coeff_row = internal::getRowPtr(coeffs, size.width * sizeof(f32) * 2, y);
+
+        u8 * dst_row = internal::getRowPtr(dstBase, dstStride, y);
+
+        size_t x = 0;
+        for ( ; x + 8 < size.width; x += 8)
+        {
+            int16x8_t v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2)]], v_zero16, 0);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 4]], v_src00, 1);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 8]], v_src00, 2);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 12]], v_src00, 3);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 16]], v_src00, 4);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 20]], v_src00, 5);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 24]], v_src00, 6);
+            v_src00 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 28]], v_src00, 7);
+
+            int16x8_t v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 1]], v_zero16, 0);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 5]], v_src01, 1);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 9]], v_src01, 2);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 13]], v_src01, 3);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 17]], v_src01, 4);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 21]], v_src01, 5);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 25]], v_src01, 6);
+            v_src01 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 29]], v_src01, 7);
+
+            int16x8_t v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 2]], v_zero16, 0);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 6]], v_src10, 1);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 10]], v_src10, 2);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 14]], v_src10, 3);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 18]], v_src10, 4);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 22]], v_src10, 5);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 26]], v_src10, 6);
+            v_src10 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 30]], v_src10, 7);
+
+            int16x8_t v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 3]], v_zero16, 0);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 7]], v_src11, 1);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 11]], v_src11, 2);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 15]], v_src11, 3);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 19]], v_src11, 4);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 23]], v_src11, 5);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 27]], v_src11, 6);
+            v_src11 = vsetq_lane_s16(srcBase[map_row[(x << 2) + 31]], v_src11, 7);
+
+            // first part
+            float32x4_t v_src00_f = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src00)));
+            float32x4_t v_src10_f = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src10)));
+
+            float32x4x2_t v_coeff = vld2q_f32(coeff_row + (x << 1));
+            float32x4_t v_dst_0 = vmlaq_f32(v_src00_f, vcvtq_f32_s32(vsubl_s16(vget_low_s16(v_src01),
+                                                                               vget_low_s16(v_src00))), v_coeff.val[0]);
+            float32x4_t v_dst_1 = vmlaq_f32(v_src10_f, vcvtq_f32_s32(vsubl_s16(vget_low_s16(v_src11),
+                                                                               vget_low_s16(v_src10))), v_coeff.val[0]);
+
+            float32x4_t v_dst = vmlaq_f32(v_dst_0, vsubq_f32(v_dst_1, v_dst_0), v_coeff.val[1]);
+            uint16x4_t v_dst0 = vmovn_u32(vcvtq_u32_f32(v_dst));
+
+            // second part
+            v_src00_f = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src00)));
+            v_src10_f = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src10)));
+
+            v_coeff = vld2q_f32(coeff_row + (x << 1) + 8);
+            v_dst_0 = vmlaq_f32(v_src00_f, vcvtq_f32_s32(vsubl_s16(vget_high_s16(v_src01),
+                                                                   vget_high_s16(v_src00))), v_coeff.val[0]);
+            v_dst_1 = vmlaq_f32(v_src10_f, vcvtq_f32_s32(vsubl_s16(vget_high_s16(v_src11),
+                                                                   vget_high_s16(v_src10))), v_coeff.val[0]);
+
+            v_dst = vmlaq_f32(v_dst_0, vsubq_f32(v_dst_1, v_dst_0), v_coeff.val[1]);
+            uint16x4_t v_dst1 = vmovn_u32(vcvtq_u32_f32(v_dst));
+
+            // store
+            vst1_u8(dst_row + x, vmovn_u16(vcombine_u16(v_dst0, v_dst1)));
+        }
+
+        for ( ; x < size.width; ++x)
+        {
+            s32 src00_index = map_row[(x << 2)];
+            s32 src10_index = map_row[(x << 2) + 2];
+            f32 dst_val_0 = (srcBase[map_row[(x << 2) + 1]] - srcBase[src00_index]) * coeff_row[x << 1] +
+                             srcBase[src00_index];
+            f32 dst_val_1 = (srcBase[map_row[(x << 2) + 3]] - srcBase[src10_index]) * coeff_row[x << 1] +
+                             srcBase[src10_index];
+            dst_row[x] = floorf((dst_val_1 - dst_val_0) * coeff_row[(x << 1) + 1] + dst_val_0);
+        }
+    }
+}
+
+void remapLinearConst(const Size2D size,
+                      const u8 * srcBase,
+                      const s32 * map,
+                      const f32 * coeffs,
+                      u8 * dstBase, ptrdiff_t dstStride,
+                      u8 borderValue)
+{
+    int16x8_t v_zero16 = vdupq_n_s16(0);
+
+    for (size_t y = 0; y < size.height; ++y)
+    {
+        const s32 * map_row = internal::getRowPtr(map, size.width * sizeof(s32) * 4, y);
+        const f32 * coeff_row = internal::getRowPtr(coeffs, size.width * sizeof(f32) * 2, y);
+
+        u8 * dst_row = internal::getRowPtr(dstBase, dstStride, y);
+
+        size_t x = 0;
+        for ( ; x + 8 < size.width; x += 8)
+        {
+            int16x8_t v_src00 = vsetq_lane_s16(map_row[(x << 2)] >= 0 ? srcBase[map_row[(x << 2)]] : borderValue, v_zero16, 0);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) +  4] >= 0 ? srcBase[map_row[(x << 2) +  4]] : borderValue, v_src00, 1);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) +  8] >= 0 ? srcBase[map_row[(x << 2) +  8]] : borderValue, v_src00, 2);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) + 12] >= 0 ? srcBase[map_row[(x << 2) + 12]] : borderValue, v_src00, 3);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) + 16] >= 0 ? srcBase[map_row[(x << 2) + 16]] : borderValue, v_src00, 4);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) + 20] >= 0 ? srcBase[map_row[(x << 2) + 20]] : borderValue, v_src00, 5);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) + 24] >= 0 ? srcBase[map_row[(x << 2) + 24]] : borderValue, v_src00, 6);
+            v_src00 = vsetq_lane_s16(map_row[(x << 2) + 28] >= 0 ? srcBase[map_row[(x << 2) + 28]] : borderValue, v_src00, 7);
+
+            int16x8_t v_src01 = vsetq_lane_s16(map_row[(x << 2) + 1] >= 0 ? srcBase[map_row[(x << 2) + 1]] : borderValue, v_zero16, 0);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) +  5] >= 0 ? srcBase[map_row[(x << 2) +  5]] : borderValue, v_src01, 1);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) +  9] >= 0 ? srcBase[map_row[(x << 2) +  9]] : borderValue, v_src01, 2);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) + 13] >= 0 ? srcBase[map_row[(x << 2) + 13]] : borderValue, v_src01, 3);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) + 17] >= 0 ? srcBase[map_row[(x << 2) + 17]] : borderValue, v_src01, 4);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) + 21] >= 0 ? srcBase[map_row[(x << 2) + 21]] : borderValue, v_src01, 5);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) + 25] >= 0 ? srcBase[map_row[(x << 2) + 25]] : borderValue, v_src01, 6);
+            v_src01 = vsetq_lane_s16(map_row[(x << 2) + 29] >= 0 ? srcBase[map_row[(x << 2) + 29]] : borderValue, v_src01, 7);
+
+            int16x8_t v_src10 = vsetq_lane_s16(map_row[(x << 2) + 2] >= 0 ? srcBase[map_row[(x << 2) + 2]] : borderValue, v_zero16, 0);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) +  6] >= 0 ? srcBase[map_row[(x << 2) +  6]] : borderValue, v_src10, 1);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) + 10] >= 0 ? srcBase[map_row[(x << 2) + 10]] : borderValue, v_src10, 2);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) + 14] >= 0 ? srcBase[map_row[(x << 2) + 14]] : borderValue, v_src10, 3);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) + 18] >= 0 ? srcBase[map_row[(x << 2) + 18]] : borderValue, v_src10, 4);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) + 22] >= 0 ? srcBase[map_row[(x << 2) + 22]] : borderValue, v_src10, 5);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) + 26] >= 0 ? srcBase[map_row[(x << 2) + 26]] : borderValue, v_src10, 6);
+            v_src10 = vsetq_lane_s16(map_row[(x << 2) + 30] >= 0 ? srcBase[map_row[(x << 2) + 30]] : borderValue, v_src10, 7);
+
+            int16x8_t v_src11 = vsetq_lane_s16(map_row[(x << 2) + 3] >= 0 ? srcBase[map_row[(x << 2) + 3]] : borderValue, v_zero16, 0);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) +  7] >= 0 ? srcBase[map_row[(x << 2) +  7]] : borderValue, v_src11, 1);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) + 11] >= 0 ? srcBase[map_row[(x << 2) + 11]] : borderValue, v_src11, 2);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) + 15] >= 0 ? srcBase[map_row[(x << 2) + 15]] : borderValue, v_src11, 3);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) + 19] >= 0 ? srcBase[map_row[(x << 2) + 19]] : borderValue, v_src11, 4);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) + 23] >= 0 ? srcBase[map_row[(x << 2) + 23]] : borderValue, v_src11, 5);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) + 27] >= 0 ? srcBase[map_row[(x << 2) + 27]] : borderValue, v_src11, 6);
+            v_src11 = vsetq_lane_s16(map_row[(x << 2) + 31] >= 0 ? srcBase[map_row[(x << 2) + 31]] : borderValue, v_src11, 7);
+
+            // first part
+            float32x4_t v_src00_f = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src00)));
+            float32x4_t v_src10_f = vcvtq_f32_s32(vmovl_s16(vget_low_s16(v_src10)));
+
+            float32x4x2_t v_coeff = vld2q_f32(coeff_row + (x << 1));
+            float32x4_t v_dst_0 = vmlaq_f32(v_src00_f, vcvtq_f32_s32(vsubl_s16(vget_low_s16(v_src01),
+                                                                               vget_low_s16(v_src00))), v_coeff.val[0]);
+            float32x4_t v_dst_1 = vmlaq_f32(v_src10_f, vcvtq_f32_s32(vsubl_s16(vget_low_s16(v_src11),
+                                                                               vget_low_s16(v_src10))), v_coeff.val[0]);
+
+            float32x4_t v_dst = vmlaq_f32(v_dst_0, vsubq_f32(v_dst_1, v_dst_0), v_coeff.val[1]);
+            uint16x4_t v_dst0 = vmovn_u32(vcvtq_u32_f32(v_dst));
+
+            // second part
+            v_src00_f = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src00)));
+            v_src10_f = vcvtq_f32_s32(vmovl_s16(vget_high_s16(v_src10)));
+
+            v_coeff = vld2q_f32(coeff_row + (x << 1) + 8);
+            v_dst_0 = vmlaq_f32(v_src00_f, vcvtq_f32_s32(vsubl_s16(vget_high_s16(v_src01),
+                                                                   vget_high_s16(v_src00))), v_coeff.val[0]);
+            v_dst_1 = vmlaq_f32(v_src10_f, vcvtq_f32_s32(vsubl_s16(vget_high_s16(v_src11),
+                                                                   vget_high_s16(v_src10))), v_coeff.val[0]);
+
+            v_dst = vmlaq_f32(v_dst_0, vsubq_f32(v_dst_1, v_dst_0), v_coeff.val[1]);
+            uint16x4_t v_dst1 = vmovn_u32(vcvtq_u32_f32(v_dst));
+
+            // store
+            vst1_u8(dst_row + x, vmovn_u16(vcombine_u16(v_dst0, v_dst1)));
+        }
+
+        for ( ; x < size.width; ++x)
+        {
+            s16 src00 = map_row[(x << 2) + 0] >= 0 ? srcBase[map_row[(x << 2) + 0]] : borderValue;
+            s16 src01 = map_row[(x << 2) + 1] >= 0 ? srcBase[map_row[(x << 2) + 1]] : borderValue;
+            s16 src10 = map_row[(x << 2) + 2] >= 0 ? srcBase[map_row[(x << 2) + 2]] : borderValue;
+            s16 src11 = map_row[(x << 2) + 3] >= 0 ? srcBase[map_row[(x << 2) + 3]] : borderValue;
+
+            f32 dst_val_0 = (src01 - src00) * coeff_row[(x << 1)] + src00;
+            f32 dst_val_1 = (src11 - src10) * coeff_row[(x << 1)] + src10;
+            dst_row[x] = floorf((dst_val_1 - dst_val_0) * coeff_row[(x << 1) + 1] + dst_val_0);
+        }
+    }
+}
+
+} // namespace internal
+
+#endif // CAROTENE_NEON
+
+bool isRemapNearestNeighborSupported(const Size2D &ssize)
+{
+#if SIZE_MAX > UINT32_MAX
+    return !(ssize.width > 0xffffFFFF || ssize.height > 0xffffFFFF) && // Restrict image size since internal index evaluation
+                                                                       // is performed with u32
+           isSupportedConfiguration();
+#else
+    (void)ssize;
+    return isSupportedConfiguration();
+#endif
+}
+
+bool isRemapLinearSupported(const Size2D &ssize)
+{
+#if SIZE_MAX > UINT32_MAX
+    return !(ssize.width > 0xffffFFFF || ssize.height > 0xffffFFFF) && // Restrict image size since internal index evaluation
+                                                                       // is performed with u32
+           isSupportedConfiguration();
+#else
+    (void)ssize;
+    return isSupportedConfiguration();
+#endif
+}
+
+void remapNearestNeighbor(const Size2D &ssize, const Size2D &dsize,
+                          const u8 * srcBase, ptrdiff_t srcStride,
+                          const f32 * tableBase, ptrdiff_t tableStride,
+                          u8 * dstBase, ptrdiff_t dstStride,
+                          BORDER_MODE borderMode, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isRemapNearestNeighborSupported(ssize));
+#ifdef CAROTENE_NEON
+    using namespace internal;
+
+    s32 _map[BLOCK_SIZE * BLOCK_SIZE + 16];
+    s32 * map = alignPtr(_map, 16);
+
+    int32x4_t v_width4 = vdupq_n_s32(ssize.width - 1), v_height4 = vdupq_n_s32(ssize.height - 1);
+    int32x2_t v_width2 = vdup_n_s32(ssize.width - 1), v_height2 = vdup_n_s32(ssize.height - 1);
+    int32x4_t v_step4 = vdupq_n_s32(srcStride);
+    int32x2_t v_step2 = vdup_n_s32(srcStride);
+
+    if (borderMode == BORDER_MODE_REPLICATE)
+    {
+        int32x4_t v_zero4 = vdupq_n_s32(0);
+        int32x2_t v_zero2 = vdup_n_s32(0);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    const f32 * table_row = getRowPtr(tableBase, tableStride, i + y) + (j << 1);
+                    s32 * map_row = getRowPtr(&map[0], blockWidth * sizeof(s32), y);
+
+                    size_t x = 0;
+                    for ( ; x + 8 <= blockWidth; x += 8)
+                    {
+                        float32x4x2_t v_table0 = vld2q_f32(table_row + (x << 1)),
+                                      v_table1 = vld2q_f32(table_row + (x << 1) + 8);
+
+                        int32x4_t v_dst_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vcvtq_s32_f32(v_table0.val[0])));
+                        int32x4_t v_dst_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vcvtq_s32_f32(v_table0.val[1])));
+                        int32x4_t v_dst_index = vmlaq_s32(v_dst_x, v_dst_y, v_step4);
+                        vst1q_s32(map_row + x, v_dst_index);
+
+                        v_dst_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vcvtq_s32_f32(v_table1.val[0])));
+                        v_dst_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vcvtq_s32_f32(v_table1.val[1])));
+                        v_dst_index = vmlaq_s32(v_dst_x, v_dst_y, v_step4);
+                        vst1q_s32(map_row + x + 4, v_dst_index);
+                    }
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4x2_t v_table0 = vld2q_f32(table_row + (x << 1));
+
+                        int32x4_t v_dst_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vcvtq_s32_f32(v_table0.val[0])));
+                        int32x4_t v_dst_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vcvtq_s32_f32(v_table0.val[1])));
+                        int32x4_t v_dst_index = vmlaq_s32(v_dst_x, v_dst_y, v_step4);
+                        vst1q_s32(map_row + x, v_dst_index);
+                    }
+
+                    for ( ; x + 2 <= blockWidth; x += 2)
+                    {
+                        float32x2x2_t v_table0 = vld2_f32(table_row + (x << 1));
+
+                        int32x2_t v_dst_x = vmax_s32(v_zero2, vmin_s32(v_width2, vcvt_s32_f32(v_table0.val[0])));
+                        int32x2_t v_dst_y = vmax_s32(v_zero2, vmin_s32(v_height2, vcvt_s32_f32(v_table0.val[1])));
+                        int32x2_t v_dst_index = vmla_s32(v_dst_x, v_dst_y, v_step2);
+                        vst1_s32(map_row + x, v_dst_index);
+                    }
+
+                    for ( ; x < blockWidth; ++x)
+                    {
+                        s32 src_x = std::max(0, std::min<s32>(ssize.width - 1, (s32)floorf(table_row[(x << 1) + 0])));
+                        s32 src_y = std::max(0, std::min<s32>(ssize.height - 1, (s32)floorf(table_row[(x << 1) + 1])));
+                        map_row[x] = src_y * srcStride + src_x;
+                    }
+                }
+
+                // make remap
+                remapNearestNeighborReplicate(Size2D(blockWidth, blockHeight), srcBase, &map[0],
+                                              getRowPtr(dstBase, dstStride, i) + j, dstStride);
+            }
+        }
+    }
+    else if (borderMode == BORDER_MODE_CONSTANT)
+    {
+        int32x4_t v_m1_4 = vdupq_n_s32(-1);
+        int32x2_t v_m1_2 = vdup_n_s32(-1);
+        float32x4_t v_zero4 = vdupq_n_f32(0.0f);
+        float32x2_t v_zero2 = vdup_n_f32(0.0f);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    const f32 * table_row = getRowPtr(tableBase, tableStride, i + y) + (j << 1);
+                    s32 * map_row = getRowPtr(&map[0], blockWidth * sizeof(s32), y);
+
+                    size_t x = 0;
+                    for ( ; x + 8 <= blockWidth; x += 8)
+                    {
+                        float32x4x2_t v_table0 = vld2q_f32(table_row + (x << 1)),
+                                      v_table1 = vld2q_f32(table_row + (x << 1) + 8);
+
+                        int32x4_t v_dst_x = vcvtq_s32_f32(v_table0.val[0]);
+                        int32x4_t v_dst_y = vcvtq_s32_f32(v_table0.val[1]);
+                        uint32x4_t v_mask = vandq_u32(vandq_u32(vcgeq_f32(v_table0.val[0], v_zero4), vcleq_s32(v_dst_x, v_width4)),
+                                                      vandq_u32(vcgeq_f32(v_table0.val[1], v_zero4), vcleq_s32(v_dst_y, v_height4)));
+                        int32x4_t v_dst_index = vbslq_s32(v_mask, vmlaq_s32(v_dst_x, v_dst_y, v_step4), v_m1_4);
+                        vst1q_s32(map_row + x, v_dst_index);
+
+                        v_dst_x = vcvtq_s32_f32(v_table1.val[0]);
+                        v_dst_y = vcvtq_s32_f32(v_table1.val[1]);
+                        v_mask = vandq_u32(vandq_u32(vcgeq_f32(v_table1.val[0], v_zero4), vcleq_s32(v_dst_x, v_width4)),
+                                           vandq_u32(vcgeq_f32(v_table1.val[1], v_zero4), vcleq_s32(v_dst_y, v_height4)));
+                        v_dst_index = vbslq_s32(v_mask, vmlaq_s32(v_dst_x, v_dst_y, v_step4), v_m1_4);
+                        vst1q_s32(map_row + x + 4, v_dst_index);
+                    }
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4x2_t v_table0 = vld2q_f32(table_row + (x << 1));
+
+                        int32x4_t v_dst_x = vcvtq_s32_f32(v_table0.val[0]);
+                        int32x4_t v_dst_y = vcvtq_s32_f32(v_table0.val[1]);
+                        uint32x4_t v_mask = vandq_u32(vandq_u32(vcgeq_f32(v_table0.val[0], v_zero4), vcleq_s32(v_dst_x, v_width4)),
+                                                      vandq_u32(vcgeq_f32(v_table0.val[1], v_zero4), vcleq_s32(v_dst_y, v_height4)));
+                        int32x4_t v_dst_index = vbslq_s32(v_mask, vmlaq_s32(v_dst_x, v_dst_y, v_step4), v_m1_4);
+                        vst1q_s32(map_row + x, v_dst_index);
+                    }
+
+                    for ( ; x + 2 <= blockWidth; x += 2)
+                    {
+                        float32x2x2_t v_table0 = vld2_f32(table_row + (x << 1));
+
+                        int32x2_t v_dst_x = vcvt_s32_f32(v_table0.val[0]);
+                        int32x2_t v_dst_y = vcvt_s32_f32(v_table0.val[1]);
+                        uint32x2_t v_mask = vand_u32(vand_u32(vcge_f32(v_table0.val[0], v_zero2), vcle_s32(v_dst_x, v_width2)),
+                                                     vand_u32(vcge_f32(v_table0.val[1], v_zero2), vcle_s32(v_dst_y, v_height2)));
+                        int32x2_t v_dst_index = vbsl_s32(v_mask, vmla_s32(v_dst_x, v_dst_y, v_step2), v_m1_2);
+                        vst1_s32(map_row + x, v_dst_index);
+                    }
+
+                    for ( ; x < blockWidth; ++x)
+                    {
+                        s32 src_x = (s32)floorf(table_row[(x << 1) + 0]);
+                        s32 src_y = (s32)floorf(table_row[(x << 1) + 1]);
+                        map_row[x] = (src_x >= 0) && (src_x < (s32)ssize.width) &&
+                                     (src_y >= 0) && (src_y < (s32)ssize.height) ? src_y * srcStride + src_x : -1;
+                    }
+                }
+
+                // make remap
+                remapNearestNeighborConst(Size2D(blockWidth, blockHeight), srcBase, &map[0],
+                                          getRowPtr(dstBase, dstStride, i) + j, dstStride, borderValue);
+            }
+        }
+    }
+
+#else
+    (void)ssize;
+    (void)dsize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)tableBase;
+    (void)tableStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderMode;
+    (void)borderValue;
+#endif
+}
+
+void remapLinear(const Size2D &ssize, const Size2D &dsize,
+                 const u8 * srcBase, ptrdiff_t srcStride,
+                 const f32 * tableBase, ptrdiff_t tableStride,
+                 u8 * dstBase, ptrdiff_t dstStride,
+                 BORDER_MODE borderMode, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isRemapLinearSupported(ssize));
+#ifdef CAROTENE_NEON
+    using namespace internal;
+
+    s32 _map[((BLOCK_SIZE * BLOCK_SIZE) << 2) + 16];
+    f32 _coeffs[((BLOCK_SIZE * BLOCK_SIZE) << 1) + 16];
+
+    s32 * map = alignPtr(_map, 16);
+    f32 * coeffs = alignPtr(_coeffs, 16);
+
+    int32x4_t v_width4 = vdupq_n_s32(ssize.width - 1), v_height4 = vdupq_n_s32(ssize.height - 1);
+    int32x4_t v_step4 = vdupq_n_s32(srcStride), v_1 = vdupq_n_s32(1);
+    float32x4_t v_zero4f = vdupq_n_f32(0.0f), v_one4f = vdupq_n_f32(1.0f);
+
+    if (borderMode == BORDER_MODE_REPLICATE)
+    {
+        int32x4_t v_zero4 = vdupq_n_s32(0);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    const f32 * table_row = getRowPtr(tableBase, tableStride, i + y) + (j << 1);
+
+                    s32 * map_row = getRowPtr(map, blockWidth * sizeof(s32) * 4, y);
+                    f32 * coeff_row = getRowPtr(coeffs, blockWidth * sizeof(f32) * 2, y);
+
+                    size_t x = 0;
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4x2_t v_table = vld2q_f32(table_row + (x << 1));
+
+                        int32x4_t v_src_x = vcvtq_s32_f32(v_table.val[0]);
+                        int32x4_t v_src_y = vcvtq_s32_f32(v_table.val[1]);
+
+                        float32x4x2_t  v_coeff;
+                        v_coeff.val[0] = vsubq_f32(v_table.val[0], vcvtq_f32_s32(v_src_x));
+                        v_coeff.val[1] = vsubq_f32(v_table.val[1], vcvtq_f32_s32(v_src_y));
+                        uint32x4_t v_maskx = vcltq_f32(v_coeff.val[0], v_zero4f);
+                        uint32x4_t v_masky = vcltq_f32(v_coeff.val[1], v_zero4f);
+                        v_coeff.val[0] = vbslq_f32(v_maskx, vaddq_f32(v_one4f, v_coeff.val[0]), v_coeff.val[0]);
+                        v_coeff.val[1] = vbslq_f32(v_masky, vaddq_f32(v_one4f, v_coeff.val[1]), v_coeff.val[1]);
+                        v_src_x = vbslq_s32(v_maskx, vsubq_s32(v_src_x, v_1), v_src_x);
+                        v_src_y = vbslq_s32(v_masky, vsubq_s32(v_src_y, v_1), v_src_y);
+
+                        int32x4_t v_dst0_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, v_src_x));
+                        int32x4_t v_dst0_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, v_src_y));
+                        int32x4_t v_dst1_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vaddq_s32(v_1, v_src_x)));
+                        int32x4_t v_dst1_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vaddq_s32(v_1, v_src_y)));
+
+                        int32x4x4_t v_dst_index;
+                        v_dst_index.val[0] = vmlaq_s32(v_dst0_x, v_dst0_y, v_step4);
+                        v_dst_index.val[1] = vmlaq_s32(v_dst1_x, v_dst0_y, v_step4);
+                        v_dst_index.val[2] = vmlaq_s32(v_dst0_x, v_dst1_y, v_step4);
+                        v_dst_index.val[3] = vmlaq_s32(v_dst1_x, v_dst1_y, v_step4);
+
+                        vst2q_f32(coeff_row + (x << 1), v_coeff);
+                        vst4q_s32(map_row + (x << 2), v_dst_index);
+                    }
+
+                    for ( ; x < blockWidth; ++x)
+                    {
+                        f32 src_x_f = table_row[(x << 1) + 0];
+                        f32 src_y_f = table_row[(x << 1) + 1];
+
+                        s32 src0_x = (s32)floorf(src_x_f);
+                        s32 src0_y = (s32)floorf(src_y_f);
+
+                        coeff_row[x << 1] = src_x_f - src0_x;
+                        coeff_row[(x << 1) + 1] = src_y_f - src0_y;
+
+                        s32 src1_y = std::max(0, std::min<s32>(ssize.height - 1, src0_y + 1));
+                        src0_y = std::max(0, std::min<s32>(ssize.height - 1, src0_y));
+                        s32 src1_x = std::max(0, std::min<s32>(ssize.width - 1, src0_x + 1));
+                        src0_x = std::max(0, std::min<s32>(ssize.width - 1, src0_x));
+
+                        map_row[(x << 2) + 0] = src0_y * srcStride + src0_x;
+                        map_row[(x << 2) + 1] = src0_y * srcStride + src1_x;
+                        map_row[(x << 2) + 2] = src1_y * srcStride + src0_x;
+                        map_row[(x << 2) + 3] = src1_y * srcStride + src1_x;
+                    }
+                }
+
+                remapLinearReplicate(Size2D(blockWidth, blockHeight),
+                                     srcBase, &map[0], &coeffs[0],
+                                     getRowPtr(dstBase, dstStride, i) + j, dstStride);
+            }
+        }
+    }
+    else if (borderMode == BORDER_MODE_CONSTANT)
+    {
+        float32x4_t v_zero4 = vdupq_n_f32(0.0f);
+        int32x4_t v_m1_4 = vdupq_n_s32(-1);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    const f32 * table_row = getRowPtr(tableBase, tableStride, i + y) + (j << 1);
+
+                    s32 * map_row = getRowPtr(map, blockWidth * sizeof(s32) * 4, y);
+                    f32 * coeff_row = getRowPtr(coeffs, blockWidth * sizeof(f32) * 2, y);
+
+                    size_t x = 0;
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4x2_t v_table = vld2q_f32(table_row + (x << 1));
+
+                        int32x4_t v_src_x0 = vcvtq_s32_f32(v_table.val[0]);
+                        int32x4_t v_src_y0 = vcvtq_s32_f32(v_table.val[1]);
+
+                        float32x4x2_t v_coeff;
+                        v_coeff.val[0] = vsubq_f32(v_table.val[0], vcvtq_f32_s32(v_src_x0));
+                        v_coeff.val[1] = vsubq_f32(v_table.val[1], vcvtq_f32_s32(v_src_y0));
+                        uint32x4_t v_maskx = vcltq_f32(v_coeff.val[0], v_zero4f);
+                        uint32x4_t v_masky = vcltq_f32(v_coeff.val[1], v_zero4f);
+                        v_coeff.val[0] = vbslq_f32(v_maskx, vaddq_f32(v_one4f, v_coeff.val[0]), v_coeff.val[0]);
+                        v_coeff.val[1] = vbslq_f32(v_masky, vaddq_f32(v_one4f, v_coeff.val[1]), v_coeff.val[1]);
+                        v_src_x0 = vbslq_s32(v_maskx, vsubq_s32(v_src_x0, v_1), v_src_x0);
+                        v_src_y0 = vbslq_s32(v_masky, vsubq_s32(v_src_y0, v_1), v_src_y0);
+
+                        int32x4_t v_src_x1 = vaddq_s32(v_src_x0, v_1);
+                        int32x4_t v_src_y1 = vaddq_s32(v_src_y0, v_1);
+
+                        int32x4x4_t v_dst_index;
+                        v_dst_index.val[0] = vmlaq_s32(v_src_x0, v_src_y0, v_step4);
+                        v_dst_index.val[1] = vmlaq_s32(v_src_x1, v_src_y0, v_step4);
+                        v_dst_index.val[2] = vmlaq_s32(v_src_x0, v_src_y1, v_step4);
+                        v_dst_index.val[3] = vmlaq_s32(v_src_x1, v_src_y1, v_step4);
+
+                        uint32x4_t v_mask_x0 = vandq_u32(vcgeq_f32(v_table.val[0], v_zero4), vcleq_s32(v_src_x0, v_width4));
+                        uint32x4_t v_mask_x1 = vandq_u32(vcgeq_f32(vaddq_f32(v_table.val[0], v_one4f), v_zero4), vcleq_s32(v_src_x1, v_width4));
+                        uint32x4_t v_mask_y0 = vandq_u32(vcgeq_f32(v_table.val[1], v_zero4), vcleq_s32(v_src_y0, v_height4));
+                        uint32x4_t v_mask_y1 = vandq_u32(vcgeq_f32(vaddq_f32(v_table.val[1], v_one4f), v_zero4), vcleq_s32(v_src_y1, v_height4));
+
+                        v_dst_index.val[0] = vbslq_s32(vandq_u32(v_mask_x0, v_mask_y0), v_dst_index.val[0], v_m1_4);
+                        v_dst_index.val[1] = vbslq_s32(vandq_u32(v_mask_x1, v_mask_y0), v_dst_index.val[1], v_m1_4);
+                        v_dst_index.val[2] = vbslq_s32(vandq_u32(v_mask_x0, v_mask_y1), v_dst_index.val[2], v_m1_4);
+                        v_dst_index.val[3] = vbslq_s32(vandq_u32(v_mask_x1, v_mask_y1), v_dst_index.val[3], v_m1_4);
+
+                        vst2q_f32(coeff_row + (x << 1), v_coeff);
+                        vst4q_s32(map_row + (x << 2), v_dst_index);
+                    }
+
+                    for ( ; x < blockWidth; ++x)
+                    {
+                        f32 src_x_f = table_row[(x << 1) + 0];
+                        f32 src_y_f = table_row[(x << 1) + 1];
+
+                        s32 src0_x = (s32)floorf(src_x_f), src1_x = src0_x + 1;
+                        s32 src0_y = (s32)floorf(src_y_f), src1_y = src0_y + 1;
+
+                        coeff_row[(x << 1)] = src_x_f - src0_x;
+                        coeff_row[(x << 1) + 1] = src_y_f - src0_y;
+
+                        map_row[(x << 2) + 0] = (src0_x >= 0) && (src0_x < (s32)ssize.width) &&
+                                                (src0_y >= 0) && (src0_y < (s32)ssize.height) ? src0_y * srcStride + src0_x : -1;
+                        map_row[(x << 2) + 1] = (src1_x >= 0) && (src1_x < (s32)ssize.width) &&
+                                                (src0_y >= 0) && (src0_y < (s32)ssize.height) ? src0_y * srcStride + src1_x : -1;
+                        map_row[(x << 2) + 2] = (src0_x >= 0) && (src0_x < (s32)ssize.width) &&
+                                                (src1_y >= 0) && (src1_y < (s32)ssize.height) ? src1_y * srcStride + src0_x : -1;
+                        map_row[(x << 2) + 3] = (src1_x >= 0) && (src1_x < (s32)ssize.width) &&
+                                                (src1_y >= 0) && (src1_y < (s32)ssize.height) ? src1_y * srcStride + src1_x : -1;
+                    }
+                }
+
+                remapLinearConst(Size2D(blockWidth, blockHeight),
+                                 srcBase, &map[0], &coeffs[0],
+                                 getRowPtr(dstBase, dstStride, i) + j, dstStride, borderValue);
+            }
+        }
+    }
+#else
+    (void)ssize;
+    (void)dsize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)tableBase;
+    (void)tableStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderMode;
+    (void)borderValue;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/remap.hpp

@@ -0,0 +1,85 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_SRC_REMAP_HPP
+#define CAROTENE_SRC_REMAP_HPP
+
+#include "common.hpp"
+
+#include <cmath>
+
+#ifdef CAROTENE_NEON
+
+namespace CAROTENE_NS { namespace internal {
+
+enum
+{
+    BLOCK_SIZE = 32
+};
+
+
+void remapNearestNeighborReplicate(const Size2D size,
+                                   const u8 * srcBase,
+                                   const s32 * map,
+                                   u8 * dstBase, ptrdiff_t dstStride);
+
+void remapNearestNeighborConst(const Size2D size,
+                               const u8 * srcBase,
+                               const s32 * map,
+                               u8 * dstBase, ptrdiff_t dstStride,
+                               u8 borderValue);
+
+void remapLinearReplicate(const Size2D size,
+                          const u8 * srcBase,
+                          const s32 * map,
+                          const f32 * coeffs,
+                          u8 * dstBase, ptrdiff_t dstStride);
+
+void remapLinearConst(const Size2D size,
+                      const u8 * srcBase,
+                      const s32 * map,
+                      const f32 * coeffs,
+                      u8 * dstBase, ptrdiff_t dstStride,
+                      u8 borderValue);
+
+} }
+
+#endif // CAROTENE_NEON
+
+#endif // CAROTENE_SRC_REMAP_HPP

libs/opencv/3rdparty/carotene/src/saturate_cast.hpp

@@ -0,0 +1,199 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_SATURATE_CAST_HPP
+#define CAROTENE_SATURATE_CAST_HPP
+
+#include <algorithm>
+#include <climits>
+#include <cmath>
+
+#if defined _MSC_VER && defined _M_ARM
+# include <intrin.h>
+#endif
+
+#include <carotene/definitions.hpp>
+#include <carotene/types.hpp>
+
+namespace CAROTENE_NS { namespace internal {
+
+#if defined _MSC_VER && defined _M_ARM
+
+__declspec(naked) static void vcvtr_s32_f64_imp(f64 d)
+{
+    (void)d;
+    __emit(0xEEBD);  // vcvtr.s32.f64 s0, d0
+    __emit(0x0B40);
+    __emit(0xEE10);  // vmov r0, s0
+    __emit(0x0A10);
+    __emit(0x4770);  // bx lr
+}
+
+# define CAROTENE_ROUND_FLT(x) return ((s32 (*)(f64))vcvtr_s32_f64_imp)((f64)x);
+# define CAROTENE_ROUND_DBL(x) return ((s32 (*)(f64))vcvtr_s32_f64_imp)(x);
+
+#elif defined CV_ICC || defined __GNUC__
+
+# if defined(__VFP_FP__) && !defined(__SOFTFP__) && !(defined _DEBUG || defined DEBUG) && !defined(__CUDACC__)
+#  define CAROTENE_ROUND_FLT(value) {                              \
+    union { f32 f; s32 i; } result; \
+    asm ("ftosis  %0, %1 \n" : "=w" (result.f) : "w" (value) ); \
+    return result.i; }
+#  define CAROTENE_ROUND_DBL(value) {                      \
+    union {f32 f; s32 i;} __tegra_result; \
+    asm (                                               \
+        "ftosid  %0, %P1\n"                             \
+        : "=w" (__tegra_result.f)                       \
+        : "w" (value)                                   \
+    );                                                  \
+    return __tegra_result.i;                            \
+    }
+# else
+#  define CAROTENE_ROUND_FLT(x) return (s32)lrintf(value);
+#  define CAROTENE_ROUND_DBL(value) return (s32)lrint(value);
+# endif
+
+#endif
+
+inline s32 round(f32 value)
+{
+#ifdef CAROTENE_ROUND_FLT
+    CAROTENE_ROUND_FLT(value)
+#else
+    s32 intpart = (s32)(value);
+    f32 fractpart = value - intpart;
+    if ((fractpart != 0.5 && fractpart != -0.5) || ((intpart % 2) != 0))
+        return (s32)(value + (value >= 0 ? 0.5 : -0.5));
+    else
+        return intpart;
+#endif
+}
+
+inline s32 round(f64 value)
+{
+#ifdef CAROTENE_ROUND_DBL
+    CAROTENE_ROUND_DBL(value)
+#else
+    s32 intpart = (s32)(value);
+    f64 fractpart = value - intpart;
+    if ((fractpart != 0.5 && fractpart != -0.5) || ((intpart % 2) != 0))
+        return (s32)(value + (value >= 0 ? 0.5 : -0.5));
+    else
+        return intpart;
+#endif
+}
+/////////////// saturate_cast (used in image & signal processing) ///////////////////
+
+template<typename _Tp> inline _Tp saturate_cast(u8 v)    { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(s8 v)    { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(u16 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(s16 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(u32 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(s32 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(s64 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(u64 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(f32 v)   { return _Tp(v); }
+template<typename _Tp> inline _Tp saturate_cast(f64 v)   { return _Tp(v); }
+
+template<> inline u8 saturate_cast<u8>(s8 v)      { return (u8)std::max((s32)v, 0); }
+template<> inline u8 saturate_cast<u8>(u16 v)     { return (u8)std::min((u32)v, (u32)UCHAR_MAX); }
+template<> inline u8 saturate_cast<u8>(s32 v)     { return (u8)((u32)v <= UCHAR_MAX ? v : v > 0 ? UCHAR_MAX : 0); }
+template<> inline u8 saturate_cast<u8>(s16 v)     { return saturate_cast<u8>((s32)v); }
+template<> inline u8 saturate_cast<u8>(u32 v)     { return (u8)std::min(v, (u32)UCHAR_MAX); }
+template<> inline u8 saturate_cast<u8>(s64 v)     { return (u8)((u64)v <= UCHAR_MAX ? v : v > 0 ? UCHAR_MAX : 0); }
+template<> inline u8 saturate_cast<u8>(u64 v)     { return (u8)std::min(v, (u64)UCHAR_MAX); }
+template<> inline u8 saturate_cast<u8>(f32 v)     { return saturate_cast<u8>(round(v)); }
+template<> inline u8 saturate_cast<u8>(f64 v)     { return saturate_cast<u8>(round(v)); }
+
+template<> inline s8 saturate_cast<s8>(u8 v)      { return (s8)std::min((s32)v, SCHAR_MAX); }
+template<> inline s8 saturate_cast<s8>(u16 v)     { return (s8)std::min((u32)v, (u32)SCHAR_MAX); }
+template<> inline s8 saturate_cast<s8>(s32 v)     { return (s8)((u32)(v-SCHAR_MIN) <= (u32)UCHAR_MAX ? v : v > 0 ? SCHAR_MAX : SCHAR_MIN); }
+template<> inline s8 saturate_cast<s8>(s16 v)     { return saturate_cast<s8>((s32)v); }
+template<> inline s8 saturate_cast<s8>(u32 v)     { return (s8)std::min(v, (u32)SCHAR_MAX); }
+template<> inline s8 saturate_cast<s8>(s64 v)     { return (s8)((u64)(v-SCHAR_MIN) <= (u64)UCHAR_MAX ? v : v > 0 ? SCHAR_MAX : SCHAR_MIN); }
+template<> inline s8 saturate_cast<s8>(u64 v)     { return (s8)std::min(v, (u64)SCHAR_MAX); }
+template<> inline s8 saturate_cast<s8>(f32 v)     { return saturate_cast<s8>(round(v)); }
+template<> inline s8 saturate_cast<s8>(f64 v)     { return saturate_cast<s8>(round(v)); }
+
+template<> inline u16 saturate_cast<u16>(s8 v)    { return (u16)std::max((s32)v, 0); }
+template<> inline u16 saturate_cast<u16>(s16 v)   { return (u16)std::max((s32)v, 0); }
+template<> inline u16 saturate_cast<u16>(s32 v)   { return (u16)((u32)v <= (u32)USHRT_MAX ? v : v > 0 ? USHRT_MAX : 0); }
+template<> inline u16 saturate_cast<u16>(u32 v)   { return (u16)std::min(v, (u32)USHRT_MAX); }
+template<> inline u16 saturate_cast<u16>(s64 v)   { return (u16)((u64)v <= (u64)USHRT_MAX ? v : v > 0 ? USHRT_MAX : 0); }
+template<> inline u16 saturate_cast<u16>(u64 v)   { return (u16)std::min(v, (u64)USHRT_MAX); }
+template<> inline u16 saturate_cast<u16>(f32 v)   { return saturate_cast<u16>(round(v)); }
+template<> inline u16 saturate_cast<u16>(f64 v)   { return saturate_cast<u16>(round(v)); }
+
+template<> inline s16 saturate_cast<s16>(u16 v)   { return (s16)std::min((s32)v, SHRT_MAX); }
+template<> inline s16 saturate_cast<s16>(s32 v)   { return (s16)((u32)(v - SHRT_MIN) <= (u32)USHRT_MAX ? v : v > 0 ? SHRT_MAX : SHRT_MIN); }
+template<> inline s16 saturate_cast<s16>(u32 v)   { return (s16)std::min(v, (u32)SHRT_MAX); }
+template<> inline s16 saturate_cast<s16>(s64 v)   { return (s16)((u64)(v - SHRT_MIN) <= (u64)USHRT_MAX ? v : v > 0 ? SHRT_MAX : SHRT_MIN); }
+template<> inline s16 saturate_cast<s16>(u64 v)   { return (s16)std::min(v, (u64)SHRT_MAX); }
+template<> inline s16 saturate_cast<s16>(f32 v)   { return saturate_cast<s16>(round(v)); }
+template<> inline s16 saturate_cast<s16>(f64 v)   { return saturate_cast<s16>(round(v)); }
+
+template<> inline u32 saturate_cast<u32>(s8 v)    { return (u32)std::max(v, (s8)0); }
+template<> inline u32 saturate_cast<u32>(s16 v)   { return (u32)std::max(v, (s16)0); }
+template<> inline u32 saturate_cast<u32>(s32 v)   { return (u32)std::max(v, (s32)0); }
+template<> inline u32 saturate_cast<u32>(s64 v)   { return (u32)((u64)v <= (u64)UINT_MAX ? v : v > 0 ? UINT_MAX : 0); }
+template<> inline u32 saturate_cast<u32>(u64 v)   { return (u32)std::min(v, (u64)UINT_MAX); }
+//OpenCV like f32/f64 -> u32 conversion
+//we intentionally do not clip negative numbers, to make -1 become 0xffffffff etc.
+template<> inline u32 saturate_cast<u32>(f32 v)   { return round(v); }
+template<> inline u32 saturate_cast<u32>(f64 v)   { return round(v); }
+//Negative clipping implementation
+//template<> inline u32 saturate_cast<u32>(f32 v)   { return saturate_cast<u32>(round(v)); }
+//template<> inline u32 saturate_cast<u32>(f64 v)   { return saturate_cast<u32>(round(v)); }
+
+template<> inline s32 saturate_cast<s32>(u32 v)   { return (s32)std::min(v, (u32)INT_MAX); }
+template<> inline s32 saturate_cast<s32>(s64 v)   { return (s32)((u64)(v - INT_MIN) <= (u64)UINT_MAX ? v : v > 0 ? INT_MAX : INT_MIN); }
+template<> inline s32 saturate_cast<s32>(u64 v)   { return (s32)std::min(v, (u64)INT_MAX); }
+template<> inline s32 saturate_cast<s32>(f32 v)   { return round(v); }
+template<> inline s32 saturate_cast<s32>(f64 v)   { return round(v); }
+
+template<> inline u64 saturate_cast<u64>(s8 v)    { return (u64)std::max(v, (s8)0); }
+template<> inline u64 saturate_cast<u64>(s16 v)   { return (u64)std::max(v, (s16)0); }
+template<> inline u64 saturate_cast<u64>(s32 v)   { return (u64)std::max(v, (s32)0); }
+template<> inline u64 saturate_cast<u64>(s64 v)   { return (u64)std::max(v, (s64)0); }
+
+template<> inline s64 saturate_cast<s64>(u64 v)   { return (s64)std::min(v, (u64)LLONG_MAX); }
+
+} }
+
+#endif

libs/opencv/3rdparty/carotene/src/scharr.cpp

@@ -0,0 +1,219 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include <vector>
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+bool isScharr3x3Supported(const Size2D &size, BORDER_MODE border, s32 dx, s32 dy, Margin borderMargin)
+{
+    return (dx == 0 && dy == 1 &&
+                   isSeparableFilter3x3Supported(size, border, 3, 1, borderMargin)) ||
+           (dx == 1 && dy == 0 &&
+                   isSeparableFilter3x3Supported(size, border, 1, 3, borderMargin));
+}
+
+void Scharr3x3(const Size2D &size,
+               const u8 * srcBase, ptrdiff_t srcStride,
+               s16 * dstBase, ptrdiff_t dstStride,
+               s32 dx, s32 dy,
+               BORDER_MODE border, u8 borderValue, Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(isScharr3x3Supported(size, border, dx, dy, borderMargin));
+#ifdef CAROTENE_NEON
+    static s16 dw[] = {3, 10, 3};
+
+    if (dy == 1)
+        SeparableFilter3x3(size, srcBase, srcStride, dstBase, dstStride,
+                           3, 1, dw, 0,
+                           border, borderValue, borderMargin);
+    else
+        SeparableFilter3x3(size, srcBase, srcStride, dstBase, dstStride,
+                           1, 3, 0, dw,
+                           border, borderValue, borderMargin);
+#else
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderValue;
+#endif
+}
+
+void ScharrDeriv(const Size2D &size, s32 cn,
+                 const u8 * srcBase, ptrdiff_t srcStride,
+                 s16 * dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t colsn = size.width*cn;
+    size_t roiw8 = colsn > 7 ? colsn - 7 : 0;
+
+    ptrdiff_t delta = (ptrdiff_t)(((size.width + 2)*cn + 15) & -16);//align size
+    std::vector<s16> _tempBuf((delta << 1) + 64);
+    s16 *trow0 = internal::alignPtr(&_tempBuf[cn], 16), *trow1 = internal::alignPtr(trow0 + delta, 16);
+
+    int16x8_t vc3 = vmovq_n_s16(3);
+    int16x8_t vc10 = vmovq_n_s16(10);
+    uint8x8_t v8c10 = vmov_n_u8(10);
+
+    for(size_t y = 0; y < size.height; y++ )
+    {
+        const u8* srow0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : size.height > 1 ? 1 : 0);
+        const u8* srow1 = internal::getRowPtr(srcBase, srcStride, y);
+        const u8* srow2 = internal::getRowPtr(srcBase, srcStride, y < size.height-1 ? y+1 : size.height > 1 ? size.height-2 : 0);
+        s16* drow = internal::getRowPtr(dstBase, dstStride, y);
+
+        // do vertical convolution
+        size_t x = 0;
+        for( ; x < roiw8; x += 8 )
+        {
+            internal::prefetch(srow0 + x);
+            internal::prefetch(srow1 + x);
+            internal::prefetch(srow2 + x);
+#if !defined(__aarch64__) && defined(__GNUC__) && __GNUC__ == 4 &&  __GNUC_MINOR__ < 7 && !defined(__clang__)
+            __asm__ (
+                "vld1.8 {d0}, [%[src0]]                                \n\t"
+                "vld1.8 {d2}, [%[src2]]                                \n\t"
+                "vld1.8 {d1}, [%[src1]]                                \n\t"
+                "vaddl.u8 q2, d2, d0                                   \n\t"
+                "vmull.u8 q3, d1, %[vc10]                              \n\t"
+                "vsubl.u8 q4, d2, d0                                   \n\t"
+                "vmla.s16 q3, q2, %q[vc3]                              \n\t"
+                "vst1.16 {d8-d9}, [%[out1],:128]                       \n\t"
+                "vst1.16 {d6-d7}, [%[out0],:128]                       \n\t"
+                :
+                : [out0] "r" (trow0 + x),
+                  [out1] "r" (trow1 + x),
+                  [src0] "r" (srow0 + x),
+                  [src1] "r" (srow1 + x),
+                  [src2] "r" (srow2 + x),
+                  [vc10] "w" (v8c10), [vc3] "w" (vc3)
+                : "d0","d1","d2","d3","d4","d5","d6","d7","d8","d9","d10","d11","d12","d13","d14","d15"
+            );
+#else
+            uint8x8_t s0 = vld1_u8(srow0 + x);
+            uint8x8_t s1 = vld1_u8(srow1 + x);
+            uint8x8_t s2 = vld1_u8(srow2 + x);
+
+            int16x8_t s1x10 = vreinterpretq_s16_u16(vmull_u8(s1, v8c10));
+            int16x8_t s02 = vreinterpretq_s16_u16(vaddl_u8(s2, s0));
+            int16x8_t t1 = vreinterpretq_s16_u16(vsubl_u8(s2, s0));
+            int16x8_t t0 = vmlaq_s16(s1x10, s02, vc3);
+
+            vst1q_s16(trow1 + x, t1);
+            vst1q_s16(trow0 + x, t0);
+#endif
+        }
+        for( ; x < colsn; x++ )
+        {
+            trow0[x] = (s16)((srow0[x] + srow2[x])*3 + srow1[x]*10);
+            trow1[x] = (s16)(srow2[x] - srow0[x]);
+        }
+
+        // make border
+        size_t x0 = (size.width > 1 ? cn : 0), x1 = (size.width > 1 ? (size.width-2)*cn : 0);
+        for( s32 k = 0; k < cn; k++ )
+        {
+            trow0[-cn + k] = trow0[x0 + k]; trow0[colsn + k] = trow0[x1 + k];
+            trow1[-cn + k] = trow1[x0 + k]; trow1[colsn + k] = trow1[x1 + k];
+        }
+
+        // do horizontal convolution, interleave the results and store them to dst
+        x = 0;
+        for( ; x < roiw8; x += 8 )
+        {
+#if !defined(__aarch64__) && defined(__GNUC__) && __GNUC__ == 4 &&  __GNUC_MINOR__ < 6 && !defined(__clang__)
+            __asm__ (
+                "vld1.16 {d4-d5}, [%[s2ptr]]                           \n\t"
+                "vld1.16 {d8-d9}, [%[s4ptr]]                           \n\t"
+                "vld1.16 {d6-d7}, [%[s3ptr],:128]                      \n\t"
+                "vld1.16 {d0-d1}, [%[s0ptr]]                           \n\t"
+                "vld1.16 {d2-d3}, [%[s1ptr]]                           \n\t"
+                "vadd.i16 q7, q2, q4                                   \n\t"
+                "vmul.s16 q6, q3, %q[vc10]                             \n\t"
+                "vsub.s16 q5, q1, q0                                   \n\t"
+                "vmla.s16 q6, q7, %q[vc3]                              \n\t"
+                "vst2.16 {d10-d13}, [%[out]]                           \n\t"
+                :
+                : [out] "r" (drow + x * 2),
+                  [s0ptr] "r" (trow0 + x - cn),
+                  [s1ptr] "r" (trow0 + x + cn),
+                  [s2ptr] "r" (trow1 + x - cn),
+                  [s3ptr] "r" (trow1 + x),
+                  [s4ptr] "r" (trow1 + x + cn),
+                  [vc10] "w" (vc10), [vc3] "w" (vc3)
+                : "d0","d1","d2","d3","d4","d5","d6","d7","d8","d9","d10","d11","d12","d13","d14","d15"
+            );
+#else
+            int16x8_t s0 = vld1q_s16(trow0 + x - cn);
+            int16x8_t s1 = vld1q_s16(trow0 + x + cn);
+            int16x8_t s2 = vld1q_s16(trow1 + x - cn);
+            int16x8_t s3 = vld1q_s16(trow1 + x);
+            int16x8_t s4 = vld1q_s16(trow1 + x + cn);
+
+            int16x8_t s3x10 = vmulq_s16(s3, vc10);
+            int16x8_t s24 = vaddq_s16(s2, s4);
+
+            int16x8x2_t vr;
+            vr.val[0] = vsubq_s16(s1, s0);
+            vr.val[1] = vmlaq_s16(s3x10, s24, vc3);
+
+            vst2q_s16(drow + x*2, vr);
+#endif
+        }
+        for( ; x < colsn; x++ )
+        {
+            drow[x*2] = (s16)(trow0[x+cn] - trow0[x-cn]);
+            drow[x*2+1] = (s16)((trow1[x+cn] + trow1[x-cn])*3 + trow1[x]*10);
+        }
+    }
+#else
+    (void)size;
+    (void)cn;
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/separable_filter.cpp

@@ -0,0 +1,109 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include "separable_filter.hpp"
+
+namespace CAROTENE_NS {
+
+bool isSeparableFilter3x3Supported(const Size2D &size, BORDER_MODE border, s32 dx, s32 dy, Margin borderMargin)
+{
+    return isSupportedConfiguration() &&
+        size.width >= 9 && size.height >= 1 &&
+        (size.height + borderMargin.top + borderMargin.bottom) >= 2  &&
+        (dx >= 0) && (dx < 4) && (dy >= 0) && (dy < 4) &&
+        (border == BORDER_MODE_CONSTANT   ||
+         border == BORDER_MODE_REFLECT    ||
+         border == BORDER_MODE_REFLECT101 ||
+         border == BORDER_MODE_REPLICATE   );
+}
+
+void SeparableFilter3x3(const Size2D &size,
+                        const u8 * srcBase, ptrdiff_t srcStride,
+                        s16 * dstBase, ptrdiff_t dstStride,
+                        const u8 rowFilter, const u8 colFilter, const s16 *xw, const s16 *yw,
+                        BORDER_MODE border, u8 borderValue, Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(isSeparableFilter3x3Supported(size, border, rowFilter, colFilter, borderMargin));
+#ifdef CAROTENE_NEON
+    if(!((xw || rowFilter < 3) && (yw || colFilter < 3)))
+        std::abort();//Couldn't call generic filter without provided weights
+
+    typedef void (*sepFilter3x3_8u16s_func)(const Size2D&, const u8*, ptrdiff_t, s16*, ptrdiff_t,
+                                            const s16*, const s16*, BORDER_MODE, u8, Margin);
+
+    static sepFilter3x3_8u16s_func quickFilters[4][4]=
+    {
+    /*d0y*/{ /*d0x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_121,    internal::ColFilter3x3S16_121>::process,
+             /*dx*/  internal::sepFilter3x3<internal::RowFilter3x3S16_m101,   internal::ColFilter3x3S16_121>::process,
+             /*d2x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_1m21,   internal::ColFilter3x3S16_121>::process,
+             /*dNx*/ internal::sepFilter3x3<internal::RowFilter3x3S16Generic, internal::ColFilter3x3S16_121>::process},
+
+    /*dy */{ /*d0x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_121,    internal::ColFilter3x3S16_m101>::process,
+             /*dx*/  internal::sepFilter3x3<internal::RowFilter3x3S16_m101,   internal::ColFilter3x3S16_m101>::process,
+             /*d2x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_1m21,   internal::ColFilter3x3S16_m101>::process,
+             /*dNx*/ internal::sepFilter3x3<internal::RowFilter3x3S16Generic, internal::ColFilter3x3S16_m101>::process},
+
+    /*d2y*/{ /*d0x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_121,    internal::ColFilter3x3S16_1m21>::process,
+             /*dx*/  internal::sepFilter3x3<internal::RowFilter3x3S16_m101,   internal::ColFilter3x3S16_1m21>::process,
+             /*d2x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_1m21,   internal::ColFilter3x3S16_1m21>::process,
+             /*dNx*/ internal::sepFilter3x3<internal::RowFilter3x3S16Generic, internal::ColFilter3x3S16_1m21>::process},
+
+    /*dNy*/{ /*d0x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_121,    internal::ColFilter3x3S16Generic>::process,
+             /*dx*/  internal::sepFilter3x3<internal::RowFilter3x3S16_m101,   internal::ColFilter3x3S16Generic>::process,
+             /*d2x*/ internal::sepFilter3x3<internal::RowFilter3x3S16_1m21,   internal::ColFilter3x3S16Generic>::process,
+             /*dNx*/ internal::sepFilter3x3<internal::RowFilter3x3S16Generic, internal::ColFilter3x3S16Generic>::process}
+    };
+
+    quickFilters[colFilter][rowFilter](size, srcBase, srcStride, dstBase, dstStride,
+                                       xw, yw, border, borderValue, borderMargin);
+#else
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)xw;
+    (void)yw;
+    (void)borderValue;
+#endif
+}
+
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/sobel.cpp

@@ -0,0 +1,317 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include <vector>
+
+#include "common.hpp"
+
+namespace CAROTENE_NS {
+
+bool isSobel3x3Supported(const Size2D &size, BORDER_MODE border,
+                         s32 dx, s32 dy, Margin borderMargin)
+{
+    return dx < 3 && dx >= 0 &&
+           dy < 3 && dy >= 0 &&
+           (dx + dy) > 0 &&
+           isSeparableFilter3x3Supported(size, border, dx, dy, borderMargin);
+}
+
+void Sobel3x3(const Size2D &size,
+              const u8 * srcBase, ptrdiff_t srcStride,
+              s16 * dstBase, ptrdiff_t dstStride,
+              s32 dx, s32 dy,
+              BORDER_MODE borderType, u8 borderValue, Margin borderMargin)
+{
+    internal::assertSupportedConfiguration(isSobel3x3Supported(size, borderType, dx, dy, borderMargin));
+#ifdef CAROTENE_NEON
+    SeparableFilter3x3(size, srcBase, srcStride, dstBase, dstStride,
+                       dx, dy, 0, 0,
+                       borderType, borderValue, borderMargin);
+#else
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderValue;
+#endif
+}
+
+bool isSobel3x3f32Supported(const Size2D &size, BORDER_MODE border,
+                            s32 dx, s32 dy)
+{
+    return isSupportedConfiguration() &&
+           dx < 3 && dx >= 0 &&
+           dy < 3 && dy >= 0 &&
+           (dx + dy) > 0 &&
+           size.width >= 4 && size.height >= 2 &&
+           (border == BORDER_MODE_CONSTANT   ||
+            border == BORDER_MODE_REFLECT    ||
+            border == BORDER_MODE_REFLECT101 ||
+            border == BORDER_MODE_REPLICATE   );
+}
+
+void Sobel3x3(const Size2D &size,
+              const f32 * srcBase, ptrdiff_t srcStride,
+              f32 * dstBase, ptrdiff_t dstStride,
+              s32 dx, s32 dy,
+              BORDER_MODE borderType, f32 borderValue)
+{
+    internal::assertSupportedConfiguration(isSobel3x3f32Supported(size, borderType, dx, dy));
+#ifdef CAROTENE_NEON
+    std::vector<f32> _tmp;
+    f32 *tmp = 0;
+    if (borderType == BORDER_MODE_CONSTANT)
+    {
+        _tmp.assign(size.width + 2, borderValue);
+        tmp = &_tmp[1];
+    }
+
+    ptrdiff_t delta = (ptrdiff_t)((size.width + 2 + 31) & -32);//align size
+    std::vector<f32> _tempBuf((delta << 1) + 64);
+    f32 *trow0 = internal::alignPtr(&_tempBuf[1], 32), *trow1 = internal::alignPtr(trow0 + delta, 32);
+
+    for( size_t y = 0; y < size.height; y++ )
+    {
+        const f32* srow0;
+        const f32* srow1 = internal::getRowPtr(srcBase, srcStride, y);
+        const f32* srow2;
+        f32* drow = internal::getRowPtr(dstBase, dstStride, y > 0 ? y-1 : 0);
+        f32* drow1 = internal::getRowPtr(dstBase, dstStride, y);
+        if (borderType == BORDER_MODE_REFLECT101) {
+            srow0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : 1);
+            srow2 = internal::getRowPtr(srcBase, srcStride, y < size.height-1 ? y+1 : size.height-2);
+        } else  if (borderType == BORDER_MODE_CONSTANT) {
+            srow0 = y > 0 ? internal::getRowPtr(srcBase, srcStride, y-1) : tmp;
+            srow2 =  y < size.height-1 ? internal::getRowPtr(srcBase, srcStride, y+1) : tmp;
+        } else { // BORDER_MODE_REFLECT || BORDER_MODE_REPLICATE
+            srow0 = internal::getRowPtr(srcBase, srcStride, y > 0 ? y-1 : 0);
+            srow2 = internal::getRowPtr(srcBase, srcStride, y < size.height-1 ? y+1 : size.height-1);
+        }
+
+        float32x4_t tprev = vmovq_n_f32(0.f);
+        float32x4_t tcurr = vmovq_n_f32(0.f);
+        float32x4_t tnext = vmovq_n_f32(0.f);
+        float32x4_t t0, t1, t2;
+        // do vertical convolution
+        size_t x = 0, bcolsn = y + 2 < size.height ? size.width : (size.width - 4);
+        for( ; x <= bcolsn; x += 4 )
+        {
+            internal::prefetch(srow0 + x);
+            internal::prefetch(srow1 + x);
+            internal::prefetch(srow2 + x);
+
+            float32x4_t x0 = vld1q_f32(srow0 + x);
+            float32x4_t x1 = vld1q_f32(srow1 + x);
+            float32x4_t x2 = vld1q_f32(srow2 + x);
+
+            tprev = tcurr;
+            tcurr = tnext;
+            if(!dy)
+            {
+                tnext = vaddq_f32(vaddq_f32(vaddq_f32(x1, x1), x2), x0);
+            }
+            else if(dy == 2)
+            {
+                tnext = vsubq_f32(vsubq_f32(x2, x1), vsubq_f32(x1, x0));
+            }
+            else
+            {
+                tnext = vsubq_f32(x2, x0);
+            }
+
+            if(!x) {
+                tcurr = tnext;
+                // make border
+                if (borderType == BORDER_MODE_CONSTANT)
+                {
+                    tcurr = vsetq_lane_f32(borderValue,tcurr, 3);
+                }
+                else if (borderType == BORDER_MODE_REFLECT101)
+                {
+                    tcurr = vsetq_lane_f32(vgetq_lane_f32(tcurr, 1),tcurr, 3);
+                }
+                else // BORDER_MODE_REFLECT || BORDER_MODE_REPLICATE
+                {
+                    tcurr = vsetq_lane_f32(vgetq_lane_f32(tcurr, 0),tcurr, 3);
+                }
+                continue;
+            }
+
+            internal::prefetch(trow0 + x);
+            internal::prefetch(trow1 + x);
+
+            t0 = vextq_f32(tprev, tcurr, 3);
+            t1 = tcurr;
+            t2 = vextq_f32(tcurr, tnext, 1);
+            if(!dx)
+            {
+                t0 = vaddq_f32(t0, vaddq_f32(vaddq_f32(t1, t1), t2));
+            }
+            else if(dx == 2)
+            {
+                t0 = vsubq_f32(vsubq_f32(t2, t1), vsubq_f32(t1, t0));
+            }
+            else
+            {
+                t0 = vsubq_f32(t2, t0);
+            }
+
+            if(!(y%2))
+            {
+                vst1q_f32(trow0 + x - 4, t0);
+            }
+            else
+            {
+                vst1q_f32(trow1 + x - 4, t0);
+            }
+        }
+        x -= 4;
+        if(x == size.width){
+            x--;
+        }
+        f32 prevx = 0, rowx = 0, nextx = 0;
+        if(!dy)
+        {
+            prevx = x > 0 ? srow2[x-1] + 2*srow1[x-1] + srow0[x-1] :
+                    (borderType == BORDER_MODE_REFLECT101 ? srow2[1] + 2*srow1[1] + srow0[1] :
+                    (borderType == BORDER_MODE_CONSTANT   ? 4*borderValue :
+                                                            srow2[0] + 2*srow1[0] + srow0[0]) );
+            rowx  = srow2[x] + 2*srow1[x] + srow0[x];
+        }
+        else if(dy == 2)
+        {
+            prevx = x > 0 ? srow2[x-1] - 2*srow1[x-1] + srow0[x-1] :
+                    (borderType == BORDER_MODE_REFLECT101 ? srow2[1] - 2*srow1[1] + srow0[1] :
+                    (borderType == BORDER_MODE_CONSTANT   ? 0.f :
+                                                            srow2[0] - 2*srow1[0] + srow0[0]) );
+            rowx  = srow2[x] - 2*srow1[x] + srow0[x];
+        }
+        else
+        {
+            prevx = x > 0 ? srow2[x-1] - srow0[x-1] :
+                    (borderType == BORDER_MODE_REFLECT101 ? srow2[1] - srow0[1] :
+                    (borderType == BORDER_MODE_CONSTANT   ? 0.f :
+                                                            srow2[0] - srow0[0]) );
+            rowx  = srow2[x] - srow0[x];
+        }
+
+        for( ; x < size.width; x++ )
+        {
+            if(x+1 == size.width) {
+                // make border
+                if (borderType == BORDER_MODE_CONSTANT)
+                {
+                    if(!dy) {
+                        nextx = 4*borderValue;
+                    } else {
+                        nextx = 0.f;
+                    }
+                } else if (borderType == BORDER_MODE_REFLECT101)
+                {
+                    if(!dy) {
+                        nextx = srow2[x-1] + 2*srow1[x-1] + srow0[x-1];
+                    } else if(dy == 2) {
+                        nextx = srow2[x-1] - 2*srow1[x-1] + srow0[x-1];
+                    } else {
+                        nextx = srow2[x-1] - srow0[x-1];
+                    }
+                } else {
+                    if(!dy) {
+                        nextx = srow2[x] + 2*srow1[x] + srow0[x];
+                    } else if(dy == 2) {
+                        nextx = srow2[x] - 2*srow1[x] + srow0[x];
+                    } else {
+                        nextx = srow2[x] - srow0[x];
+                    }
+                }
+            } else {
+                if(!dy) {
+                    nextx = srow2[x+1] + 2*srow1[x+1] + srow0[x+1];
+                } else if(dy == 2) {
+                    nextx = srow2[x+1] - 2*srow1[x+1] + srow0[x+1];
+                } else {
+                    nextx = srow2[x+1] - srow0[x+1];
+                }
+            }
+            f32 res;
+            if(dx==1) {
+                res = nextx - prevx;
+            } else if(!dx) {
+                res = prevx + 2*rowx + nextx;
+            } else {
+                res = prevx - 2*rowx + nextx;
+            }
+            if(!(y%2)) {
+                *(trow0+x) = res;
+            } else {
+                *(trow1+x) = res;
+            }
+            prevx = rowx;
+            rowx = nextx;
+        }
+
+        if(y>0) {
+            for(size_t x1 = 0; x1 < size.width; x1++ )
+            {
+                if(y%2)
+                    *(drow + x1) = trow0[x1];
+                else
+                    *(drow + x1) = trow1[x1];
+            }
+        }
+        if(y == size.height-1) {
+            for(size_t x1 = 0; x1 < size.width; x1++ )
+            {
+                if(!(y%2))
+                    *(drow1 + x1) = trow0[x1];
+                else
+                    *(drow1 + x1) = trow1[x1];
+            }
+        }
+    }
+#else
+    (void)srcBase;
+    (void)srcStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderValue;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/sub.cpp

@@ -0,0 +1,621 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+#ifdef CAROTENE_NEON
+
+namespace {
+
+template <typename T, typename WT>
+struct SubWrap
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vsubq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vsub(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = (T)((WT)src0[0] - (WT)src1[0]);
+    }
+};
+
+template <typename T, typename WT>
+struct SubSaturate
+{
+    typedef T type;
+
+    void operator() (const typename internal::VecTraits<T>::vec128 & v_src0,
+                     const typename internal::VecTraits<T>::vec128 & v_src1,
+                     typename internal::VecTraits<T>::vec128 & v_dst) const
+    {
+        v_dst = internal::vqsubq(v_src0, v_src1);
+    }
+
+    void operator() (const typename internal::VecTraits<T>::vec64 & v_src0,
+                     const typename internal::VecTraits<T>::vec64 & v_src1,
+                     typename internal::VecTraits<T>::vec64 & v_dst) const
+    {
+        v_dst = internal::vqsub(v_src0, v_src1);
+    }
+
+    void operator() (const T * src0, const T * src1, T * dst) const
+    {
+        dst[0] = internal::saturate_cast<T>((WT)src0[0] - (WT)src1[0]);
+    }
+};
+
+} // namespace
+
+#endif
+
+void sub(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         u8 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubSaturate<u8, s16>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubWrap<u8, s16>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const u8 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        u16 * dstu16 = internal::getRowPtr((u16 *)dstBase, dstStride, i);
+        s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw32; j += 32)
+        {
+            internal::prefetch(src0 + j);
+            internal::prefetch(src1 + j);
+            uint8x16_t v_src00 = vld1q_u8(src0 + j), v_src01 = vld1q_u8(src0 + j + 16);
+            uint8x16_t v_src10 = vld1q_u8(src1 + j), v_src11 = vld1q_u8(src1 + j + 16);
+            vst1q_u16(dstu16 + j, vsubl_u8(vget_low_u8(v_src00), vget_low_u8(v_src10)));
+            vst1q_u16(dstu16 + j + 8, vsubl_u8(vget_high_u8(v_src00), vget_high_u8(v_src10)));
+            vst1q_u16(dstu16 + j + 16, vsubl_u8(vget_low_u8(v_src01), vget_low_u8(v_src11)));
+            vst1q_u16(dstu16 + j + 24, vsubl_u8(vget_high_u8(v_src01), vget_high_u8(v_src11)));
+        }
+        for (; j < roiw8; j += 8)
+        {
+            uint8x8_t v_src0 = vld1_u8(src0 + j);
+            uint8x8_t v_src1 = vld1_u8(src1 + j);
+            vst1q_u16(dstu16 + j, vsubl_u8(v_src0, v_src1));
+        }
+
+        for (; j < size.width; j++)
+            dst[j] = (s16)src0[j] - (s16)src1[j];
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void sub(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         f32 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw32 = size.width >= 31 ? size.width - 31 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const u8 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        f32 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        for (; j < roiw32; j += 32)
+        {
+            internal::prefetch(src0 + j);
+            internal::prefetch(src1 + j);
+            uint8x16_t v_src00 = vld1q_u8(src0 + j), v_src01 = vld1q_u8(src0 + j + 16);
+            uint8x16_t v_src10 = vld1q_u8(src1 + j), v_src11 = vld1q_u8(src1 + j + 16);
+            int16x8_t vsl = vreinterpretq_s16_u16(vsubl_u8( vget_low_u8(v_src00),  vget_low_u8(v_src10)));
+            int16x8_t vsh = vreinterpretq_s16_u16(vsubl_u8(vget_high_u8(v_src00), vget_high_u8(v_src10)));
+
+            vst1q_f32(dst + j +  0, vcvtq_f32_s32(vmovl_s16(  vget_low_s16(vsl) )));
+            vst1q_f32(dst + j +  4, vcvtq_f32_s32(vmovl_s16( vget_high_s16(vsl) )));
+            vst1q_f32(dst + j +  8, vcvtq_f32_s32(vmovl_s16(  vget_low_s16(vsh) )));
+            vst1q_f32(dst + j + 12, vcvtq_f32_s32(vmovl_s16( vget_high_s16(vsh) )));
+
+            vsl = vreinterpretq_s16_u16(vsubl_u8( vget_low_u8(v_src01),  vget_low_u8(v_src11)));
+            vsh = vreinterpretq_s16_u16(vsubl_u8(vget_high_u8(v_src01), vget_high_u8(v_src11)));
+
+            vst1q_f32(dst + j + 16, vcvtq_f32_s32(vmovl_s16(  vget_low_s16(vsl) )));
+            vst1q_f32(dst + j + 20, vcvtq_f32_s32(vmovl_s16( vget_high_s16(vsl) )));
+            vst1q_f32(dst + j + 24, vcvtq_f32_s32(vmovl_s16(  vget_low_s16(vsh) )));
+            vst1q_f32(dst + j + 28, vcvtq_f32_s32(vmovl_s16( vget_high_s16(vsh) )));
+        }
+        for (; j < roiw8; j += 8)
+        {
+            uint8x8_t v_src0 = vld1_u8(src0 + j);
+            uint8x8_t v_src1 = vld1_u8(src1 + j);
+
+            int16x8_t vs = vreinterpretq_s16_u16(vsubl_u8(v_src0, v_src1));
+            vst1q_f32(dst + j + 0, vcvtq_f32_s32(vmovl_s16(  vget_low_s16(vs) )));
+            vst1q_f32(dst + j + 4, vcvtq_f32_s32(vmovl_s16( vget_high_s16(vs) )));
+        }
+        for(; j < size.width; j++)
+            dst[j] = (f32)src0[j] - (f32)src1[j];
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+void sub(const Size2D &size,
+         const u8 * src0Base, ptrdiff_t src0Stride,
+         const s16 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const s16 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (policy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+                uint8x16_t v_src0 = vld1q_u8(src0 + j);
+                int16x8_t v_src00 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src0)));
+                int16x8_t v_src01 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src0)));
+                int16x8_t v_src10 = vld1q_s16(src1 + j), v_src11 = vld1q_s16(src1 + j + 8);
+                int16x8_t v_dst0 = vqsubq_s16(v_src00, v_src10);
+                int16x8_t v_dst1 = vqsubq_s16(v_src01, v_src11);
+                vst1q_s16(dst + j, v_dst0);
+                vst1q_s16(dst + j + 8, v_dst1);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src0 + j)));
+                int16x8_t v_src1 = vld1q_s16(src1 + j);
+                int16x8_t v_dst = vqsubq_s16(v_src0, v_src1);
+                vst1q_s16(dst + j, v_dst);
+            }
+
+            for (; j < size.width; j++)
+                dst[j] = internal::saturate_cast<s16>((s32)src0[j] - (s32)src1[j]);
+        }
+        else
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+                uint8x16_t v_src0 = vld1q_u8(src0 + j);
+                int16x8_t v_src00 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src0)));
+                int16x8_t v_src01 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src0)));
+                int16x8_t v_src10 = vld1q_s16(src1 + j), v_src11 = vld1q_s16(src1 + j + 8);
+                int16x8_t v_dst0 = vsubq_s16(v_src00, v_src10);
+                int16x8_t v_dst1 = vsubq_s16(v_src01, v_src11);
+                vst1q_s16(dst + j, v_dst0);
+                vst1q_s16(dst + j + 8, v_dst1);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src0 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src0 + j)));
+                int16x8_t v_src1 = vld1q_s16(src1 + j);
+                int16x8_t v_dst = vsubq_s16(v_src0, v_src1);
+                vst1q_s16(dst + j, v_dst);
+            }
+
+            for (; j < size.width; j++)
+                dst[j] = (s16)((s32)src0[j] - (s32)src1[j]);
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const s16 * src0Base, ptrdiff_t src0Stride,
+         const u8 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    size_t roiw16 = size.width >= 15 ? size.width - 15 : 0;
+    size_t roiw8 = size.width >= 7 ? size.width - 7 : 0;
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const s16 * src0 = internal::getRowPtr(src0Base, src0Stride, i);
+        const u8 * src1 = internal::getRowPtr(src1Base, src1Stride, i);
+        s16 * dst = internal::getRowPtr(dstBase, dstStride, i);
+        size_t j = 0;
+
+        if (policy == CONVERT_POLICY_SATURATE)
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+                int16x8_t v_src00 = vld1q_s16(src0 + j), v_src01 = vld1q_s16(src0 + j + 8);
+                uint8x16_t v_src1 = vld1q_u8(src1 + j);
+                int16x8_t v_src10 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src1)));
+                int16x8_t v_src11 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src1)));
+                int16x8_t v_dst0 = vqsubq_s16(v_src00, v_src10);
+                int16x8_t v_dst1 = vqsubq_s16(v_src01, v_src11);
+                vst1q_s16(dst + j, v_dst0);
+                vst1q_s16(dst + j + 8, v_dst1);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src0 = vld1q_s16(src0 + j);
+                int16x8_t v_src1 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src1 + j)));
+                int16x8_t v_dst = vqsubq_s16(v_src0, v_src1);
+                vst1q_s16(dst + j, v_dst);
+            }
+
+            for (; j < size.width; j++)
+                dst[j] = internal::saturate_cast<s16>((s32)src0[j] - (s32)src1[j]);
+        }
+        else
+        {
+            for (; j < roiw16; j += 16)
+            {
+                internal::prefetch(src0 + j);
+                internal::prefetch(src1 + j);
+                int16x8_t v_src00 = vld1q_s16(src0 + j), v_src01 = vld1q_s16(src0 + j + 8);
+                uint8x16_t v_src1 = vld1q_u8(src1 + j);
+                int16x8_t v_src10 = vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(v_src1)));
+                int16x8_t v_src11 = vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(v_src1)));
+                int16x8_t v_dst0 = vsubq_s16(v_src00, v_src10);
+                int16x8_t v_dst1 = vsubq_s16(v_src01, v_src11);
+                vst1q_s16(dst + j, v_dst0);
+                vst1q_s16(dst + j + 8, v_dst1);
+            }
+            for (; j < roiw8; j += 8)
+            {
+                int16x8_t v_src0 = vld1q_s16(src0 + j);
+                int16x8_t v_src1 = vreinterpretq_s16_u16(vmovl_u8(vld1_u8(src1 + j)));
+                int16x8_t v_dst = vsubq_s16(v_src0, v_src1);
+                vst1q_s16(dst + j, v_dst);
+            }
+
+            for (; j < size.width; j++)
+                dst[j] = (s16)((s32)src0[j] - (s32)src1[j]);
+        }
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const s8 * src0Base, ptrdiff_t src0Stride,
+         const s8 * src1Base, ptrdiff_t src1Stride,
+         s8 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubSaturate<s8, s16>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubWrap<s8, s16>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const s16 * src0Base, ptrdiff_t src0Stride,
+         const s16 * src1Base, ptrdiff_t src1Stride,
+         s16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubSaturate<s16, s32>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubWrap<s16, s32>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const u16 * src0Base, ptrdiff_t src0Stride,
+         const u16 * src1Base, ptrdiff_t src1Stride,
+         u16 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubSaturate<u16, s32>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubWrap<u16, s32>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const s32 * src0Base, ptrdiff_t src0Stride,
+         const s32 * src1Base, ptrdiff_t src1Stride,
+         s32 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubSaturate<s32, s64>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubWrap<s32, s64>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const u32 * src0Base, ptrdiff_t src0Stride,
+         const u32 * src1Base, ptrdiff_t src1Stride,
+         u32 *dstBase, ptrdiff_t dstStride,
+         CONVERT_POLICY policy)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    if (policy == CONVERT_POLICY_SATURATE)
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubSaturate<u32, s64>());
+    }
+    else
+    {
+        internal::vtransform(size,
+                             src0Base, src0Stride,
+                             src1Base, src1Stride,
+                             dstBase, dstStride,
+                             SubWrap<u32, s64>());
+    }
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)policy;
+#endif
+}
+
+void sub(const Size2D &size,
+         const f32 * src0Base, ptrdiff_t src0Stride,
+         const f32 * src1Base, ptrdiff_t src1Stride,
+         f32 *dstBase, ptrdiff_t dstStride)
+{
+    internal::assertSupportedConfiguration();
+#ifdef CAROTENE_NEON
+    internal::vtransform(size,
+                         src0Base, src0Stride,
+                         src1Base, src1Stride,
+                         dstBase, dstStride,
+                         SubWrap<f32, f32>());
+#else
+    (void)size;
+    (void)src0Base;
+    (void)src0Stride;
+    (void)src1Base;
+    (void)src1Stride;
+    (void)dstBase;
+    (void)dstStride;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/sum.cpp

@@ -0,0 +1,385 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2012-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include "vtransform.hpp"
+
+namespace CAROTENE_NS {
+
+bool isSumSupported(u32 channels)
+{
+    return (channels && channels < 5);
+}
+
+void sum(const Size2D &_size,
+         const u8 * srcBase, ptrdiff_t srcStride,
+         u32 * sumdst, u32 channels)
+{
+    internal::assertSupportedConfiguration(isSumSupported(channels));
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    const ptrdiff_t width = size.width * channels;
+
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const u8* src = internal::getRowPtr( srcBase,  srcStride, k);
+        ptrdiff_t i = 0;
+
+        if (channels == 3)
+        {
+            uint32x4_t vs1231 = vdupq_n_u32(0);
+            uint32x4_t vs3123 = vdupq_n_u32(0);
+            uint32x4_t vs2312 = vdupq_n_u32(0);
+            for (; i <= width - 257*8*3; i += 257*8*3, src += 257*8*3)
+            {
+                uint16x8_t s1 = vmovl_u8(vld1_u8(src +  0));
+                uint16x8_t s2 = vmovl_u8(vld1_u8(src +  8));
+                uint16x8_t s3 = vmovl_u8(vld1_u8(src + 16));
+
+                for (ptrdiff_t j = 8*3; j < 257*8*3; j+= 8*3)
+                {
+                    internal::prefetch(src + j + 24);
+                    s1 = vaddw_u8(s1, vld1_u8(src + j +  0));
+                    s2 = vaddw_u8(s2, vld1_u8(src + j +  8));
+                    s3 = vaddw_u8(s3, vld1_u8(src + j + 16));
+                }
+
+                vs1231 = vqaddq_u32(vs1231, vaddl_u16(vget_low_u16(s1), vget_high_u16(s2)));
+                vs3123 = vqaddq_u32(vs3123, vaddl_u16(vget_low_u16(s2), vget_high_u16(s3)));
+                vs2312 = vqaddq_u32(vs2312, vaddl_u16(vget_low_u16(s3), vget_high_u16(s1)));
+            }
+            if (i <= width - 8*3)
+            {
+                uint16x8_t s1 = vmovl_u8(vld1_u8(src +  0));
+                uint16x8_t s2 = vmovl_u8(vld1_u8(src +  8));
+                uint16x8_t s3 = vmovl_u8(vld1_u8(src + 16));
+
+                for (i += 8*3, src += 8*3; i <= width - 8*3; i += 8*3, src += 8*3)
+                {
+                    internal::prefetch(src + 24);
+                    s1 = vaddw_u8(s1, vld1_u8(src +  0));
+                    s2 = vaddw_u8(s2, vld1_u8(src +  8));
+                    s3 = vaddw_u8(s3, vld1_u8(src + 16));
+                }
+
+                vs1231 = vqaddq_u32(vs1231, vaddl_u16(vget_low_u16(s1), vget_high_u16(s2)));
+                vs3123 = vqaddq_u32(vs3123, vaddl_u16(vget_low_u16(s2), vget_high_u16(s3)));
+                vs2312 = vqaddq_u32(vs2312, vaddl_u16(vget_low_u16(s3), vget_high_u16(s1)));
+            }
+
+            u32 sum[12];
+            vst1q_u32(sum+0, vs1231);
+            vst1q_u32(sum+4, vs2312);
+            vst1q_u32(sum+8, vs3123);
+
+            for (; i < width; i += 3, src += 3)
+            {
+                sumdst[0] += src[0];
+                sumdst[1] += src[1];
+                sumdst[2] += src[2];
+            }
+
+            sumdst[0] += sum[0] + sum[3] + sum[6] + sum[9];
+            sumdst[1] += sum[1] + sum[4] + sum[7] + sum[10];
+            sumdst[2] += sum[2] + sum[5] + sum[8] + sum[11];
+        }
+        else
+        {
+            uint32x4_t vs = vdupq_n_u32(0);
+            for (; i <= width - 257*8; i += 257*8, src += 257 * 8)
+            {
+                uint16x8_t s1 = vmovl_u8(vld1_u8(src));
+
+                for (int j = 8; j < 257 * 8; j += 8)
+                {
+                    internal::prefetch(src + j);
+                    s1 = vaddw_u8(s1, vld1_u8(src + j));
+                }
+
+                vs = vqaddq_u32(vs, vaddl_u16(vget_low_u16(s1), vget_high_u16(s1)));
+            }
+            if (i < width - 7)
+            {
+                uint16x8_t s1 = vmovl_u8(vld1_u8(src));
+
+                for(i+=8,src+=8; i < width-7; i+=8,src+=8)
+                {
+                    internal::prefetch(src);
+                    s1 = vaddw_u8(s1, vld1_u8(src));
+                }
+                vs = vqaddq_u32(vs, vaddl_u16(vget_low_u16(s1), vget_high_u16(s1)));
+            }
+
+            if (channels == 1)
+            {
+                uint32x2_t vs2 = vqadd_u32(vget_low_u32(vs), vget_high_u32(vs));
+                uint32x2_t vs1 = vreinterpret_u32_u64(vpaddl_u32(vs2));
+
+                u32 s0 = vget_lane_u32(vs1, 0);
+                for(; i < width; ++i,++src)
+                    s0 += src[0];
+                sumdst[0] += s0;
+            }
+            else if (channels == 4)
+            {
+                vst1q_u32(sumdst, vqaddq_u32(vs, vld1q_u32(sumdst)));
+
+                for(; i < width; i+=4,src+=4)
+                {
+                    sumdst[0] += src[0];
+                    sumdst[1] += src[1];
+                    sumdst[2] += src[2];
+                    sumdst[3] += src[3];
+                }
+            }
+            else//if (channels == 2)
+            {
+                uint32x2_t vs2 = vqadd_u32(vget_low_u32(vs), vget_high_u32(vs));
+                vst1_u32(sumdst, vqadd_u32(vs2, vld1_u32(sumdst)));
+
+                for(; i < width; i+=2,src+=2)
+                {
+                    sumdst[0] += src[0];
+                    sumdst[1] += src[1];
+                }
+            }
+        }//channels != 3
+    }
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)sumdst;
+    (void)channels;
+#endif
+}
+
+void sum(const Size2D &_size,
+         const f32 * srcBase, ptrdiff_t srcStride,
+         f64 * sumdst, u32 channels)
+{
+    internal::assertSupportedConfiguration(isSumSupported(channels));
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    const ptrdiff_t width = size.width * channels;
+
+    for(size_t k = 0; k < size.height; ++k)
+    {
+        const f32* src = internal::getRowPtr( srcBase,  srcStride, k);
+        ptrdiff_t i = 0;
+
+        if (channels == 3)
+        {
+            float32x4_t vs1231 = vdupq_n_f32(0);
+            float32x4_t vs2312 = vdupq_n_f32(0);
+            float32x4_t vs3123 = vdupq_n_f32(0);
+            for(; i <= width-12; i += 12)
+            {
+                internal::prefetch(src + i + 12);
+                vs1231 = vaddq_f32(vs1231, vld1q_f32(src + i + 0));
+                vs2312 = vaddq_f32(vs2312, vld1q_f32(src + i + 4));
+                vs3123 = vaddq_f32(vs3123, vld1q_f32(src + i + 8));
+            }
+
+            f32 s[12];
+            vst1q_f32(s + 0, vs1231);
+            vst1q_f32(s + 4, vs2312);
+            vst1q_f32(s + 8, vs3123);
+
+            sumdst[0] += s[0] + s[3] + s[6] + s[9];
+            sumdst[1] += s[1] + s[4] + s[7] + s[10];
+            sumdst[2] += s[2] + s[5] + s[8] + s[11];
+            for( ; i < width; i+=3)
+            {
+                sumdst[0] += src[i];
+                sumdst[1] += src[i+1];
+                sumdst[2] += src[i+2];
+            }
+        }
+        else
+        {
+            float32x4_t vs = vdupq_n_f32(0);
+            for(; i <= width-4; i += 4)
+            {
+                internal::prefetch(src + i);
+                vs = vaddq_f32(vs, vld1q_f32(src+i));
+            }
+
+            if (channels == 1)
+            {
+                float32x2_t vs2 = vpadd_f32(vget_low_f32(vs), vget_high_f32(vs));
+                f32 s[2];
+                vst1_f32(s, vs2);
+
+                sumdst[0] += s[0] + s[1];
+                for( ; i < width; i++)
+                    sumdst[0] += src[i];
+            }
+            else if (channels == 4)
+            {
+                f32 s[4];
+                vst1q_f32(s, vs);
+
+                sumdst[0] += s[0];
+                sumdst[1] += s[1];
+                sumdst[2] += s[2];
+                sumdst[3] += s[3];
+            }
+            else//if (channels == 2)
+            {
+                float32x2_t vs2 = vadd_f32(vget_low_f32(vs), vget_high_f32(vs));
+                f32 s[2];
+                vst1_f32(s, vs2);
+
+                sumdst[0] += s[0];
+                sumdst[1] += s[1];
+
+                if(i < width)
+                {
+                    sumdst[0] += src[i];
+                    sumdst[1] += src[i+1];
+                }
+            }
+        }//channels != 3
+    }
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)sumdst;
+    (void)channels;
+#endif
+}
+
+bool isSqsumSupported(u32 channels)
+{
+    return (channels && ((4/channels)*channels == 4));
+}
+
+void sqsum(const Size2D &_size,
+           const u8 * srcBase, ptrdiff_t srcStride,
+           f64 * sumdst, f64 * sqsumdst, u32 channels)
+{
+    internal::assertSupportedConfiguration(isSqsumSupported(channels));
+#ifdef CAROTENE_NEON
+    Size2D size(_size);
+    if (srcStride == (ptrdiff_t)(size.width*channels))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+    const size_t width = size.width * channels;
+
+    size_t blockSize0 = 1 << 23;
+    size_t roiw8 = width & ~7;
+
+    uint32x4_t v_zero = vdupq_n_u32(0u);
+
+    for (size_t i = 0; i < size.height; ++i)
+    {
+        const u8 * src = internal::getRowPtr(srcBase, srcStride, i);
+        size_t j = 0u;
+
+        while (j < roiw8)
+        {
+            size_t blockSize = std::min(roiw8 - j, blockSize0) + j;
+            uint32x4_t v_sum = v_zero;
+            uint32x4_t v_sqsum = v_zero;
+
+            for ( ; j < blockSize ; j += 8, src += 8)
+            {
+                internal::prefetch(src);
+                uint8x8_t v_src0 = vld1_u8(src);
+
+                uint16x8_t v_src = vmovl_u8(v_src0);
+                uint16x4_t v_srclo = vget_low_u16(v_src), v_srchi = vget_high_u16(v_src);
+                v_sum = vaddq_u32(v_sum, vaddl_u16(v_srclo, v_srchi));
+                v_sqsum = vmlal_u16(v_sqsum, v_srclo, v_srclo);
+                v_sqsum = vmlal_u16(v_sqsum, v_srchi, v_srchi);
+            }
+
+            u32 arsum[8];
+            vst1q_u32(arsum, v_sum);
+            vst1q_u32(arsum + 4, v_sqsum);
+
+            sumdst[0] += (f64)arsum[0];
+            sumdst[1 % channels] += (f64)arsum[1];
+            sumdst[2 % channels] += (f64)arsum[2];
+            sumdst[3 % channels] += (f64)arsum[3];
+            sqsumdst[0] += (f64)arsum[4];
+            sqsumdst[1 % channels] += (f64)arsum[5];
+            sqsumdst[2 % channels] += (f64)arsum[6];
+            sqsumdst[3 % channels] += (f64)arsum[7];
+        }
+        // collect a few last elements in the current row
+        // it's ok to process channels elements per step
+        // since we could handle 1,2 or 4 channels
+        // we always have channels-fold amount of elements remaining
+        for ( ; j < width; j+=channels, src+=channels)
+        {
+            for (u32 kk = 0; kk < channels; kk++)
+            {
+                u32 srcval = src[kk];
+                sumdst[kk] += srcval;
+                sqsumdst[kk] += srcval * srcval;
+            }
+        }
+    }
+#else
+    (void)_size;
+    (void)srcBase;
+    (void)srcStride;
+    (void)sumdst;
+    (void)sqsumdst;
+    (void)channels;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/template_matching.cpp

@@ -0,0 +1,241 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2013-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "common.hpp"
+
+#include <vector>
+#include <cstring>
+
+namespace CAROTENE_NS {
+
+#define ENABLE4LINESMATCHING false  //Disabled since overall time for simultaneous 4 lines matching is greater than
+                                    //time for simultaneous 2 lines matching for the same amount of data
+
+bool isMatchTemplateSupported(const Size2D &tmplSize)
+{
+    return isSupportedConfiguration() &&
+           tmplSize.width >= 8 && // Actually the function could process even shorter templates
+                                  // but there will be no NEON optimization in this case
+           (tmplSize.width * tmplSize.height) <= 256;
+}
+
+void matchTemplate(const Size2D &srcSize,
+                   const u8 * srcBase, ptrdiff_t srcStride,
+                   const Size2D &tmplSize,
+                   const u8 * tmplBase, ptrdiff_t tmplStride,
+                   f32 * dstBase, ptrdiff_t dstStride,
+                   bool normalize)
+{
+    internal::assertSupportedConfiguration(isMatchTemplateSupported(tmplSize));
+#ifdef CAROTENE_NEON
+    const size_t tmplW = tmplSize.width;
+    const size_t tmplH = tmplSize.height;
+    const size_t dstW  = srcSize.width  - tmplSize.width  + 1;
+    const size_t dstH  = srcSize.height - tmplSize.height + 1;
+
+    //template correlation part
+    {
+#if ENABLE4LINESMATCHING
+        const size_t dstroiw4 = dstW & ~3u;
+#endif
+        const size_t dstroiw2 = dstW & ~1u;
+        const size_t tmplroiw = tmplW & ~7u;
+        const size_t dstride = dstStride >> 2;
+
+        f32 *corr = dstBase;
+        const u8  *imgrrow = srcBase;
+        for(size_t r = 0; r < dstH; ++r, corr+=dstride, imgrrow+=srcStride)
+        {
+            size_t c = 0;
+#if ENABLE4LINESMATCHING
+            for(; c < dstroiw4; c+=4)
+            {
+                u32 dot[4] = {0, 0, 0, 0};
+                uint32x4_t vdot0 = vmovq_n_u32(0);
+                uint32x4_t vdot1 = vmovq_n_u32(0);
+                uint32x4_t vdot2 = vmovq_n_u32(0);
+                uint32x4_t vdot3 = vmovq_n_u32(0);
+
+                const u8  *img = imgrrow;
+                const u8 *tmpl = tmplBase;
+                for(size_t i = 0; i < tmplH; ++i, tmpl+=tmplStride, img+=srcStride)
+                {
+                    size_t j = 0;
+                    for(; j < tmplroiw; j+=8)
+                    {
+                        uint8x8_t vtmpl = vld1_u8(tmpl + j);
+
+                        uint8x8_t vimg0 = vld1_u8(img + j + c + 0);
+                        uint8x8_t vimg1 = vld1_u8(img + j + c + 1);
+                        uint8x8_t vimg2 = vld1_u8(img + j + c + 2);
+                        uint8x8_t vimg3 = vld1_u8(img + j + c + 3);
+
+                        uint16x8_t vd0 = vmull_u8(vtmpl, vimg0);
+                        uint16x8_t vd1 = vmull_u8(vtmpl, vimg1);
+                        uint16x8_t vd2 = vmull_u8(vtmpl, vimg2);
+                        uint16x8_t vd3 = vmull_u8(vtmpl, vimg3);
+
+                        vdot0 = vpadalq_u16(vdot0, vd0);
+                        vdot1 = vpadalq_u16(vdot1, vd1);
+                        vdot2 = vpadalq_u16(vdot2, vd2);
+                        vdot3 = vpadalq_u16(vdot3, vd3);
+                    }
+                    for(; j < tmplW; ++j)
+                    {
+                        dot[0] += tmpl[j] * img[j + c + 0];
+                        dot[1] += tmpl[j] * img[j + c + 1];
+                        dot[2] += tmpl[j] * img[j + c + 2];
+                        dot[3] += tmpl[j] * img[j + c + 3];
+                    }
+                }
+                uint32x4_t vdotx   = vld1q_u32(dot);
+                uint32x2_t vdot_0  = vpadd_u32(vget_low_u32(vdot0), vget_high_u32(vdot0));
+                uint32x2_t vdot_1  = vpadd_u32(vget_low_u32(vdot1), vget_high_u32(vdot1));
+                uint32x2_t vdot_2  = vpadd_u32(vget_low_u32(vdot2), vget_high_u32(vdot2));
+                uint32x2_t vdot_3  = vpadd_u32(vget_low_u32(vdot3), vget_high_u32(vdot3));
+                uint32x2_t vdot_01 = vpadd_u32(vdot_0, vdot_1);
+                uint32x2_t vdot_23 = vpadd_u32(vdot_2, vdot_3);
+
+                vst1q_f32(corr + c, vcvtq_f32_u32(vaddq_u32(vdotx, vcombine_u32(vdot_01, vdot_23))));
+            }
+#endif
+
+            for(; c < dstroiw2; c+=2)
+            {
+                u32 dot[2] = {0, 0};
+                uint32x4_t vdot0 = vmovq_n_u32(0);
+                uint32x4_t vdot1 = vmovq_n_u32(0);
+                const u8  *img = imgrrow;
+                const u8 *tmpl = tmplBase;
+                for(size_t i = 0; i < tmplH; ++i, tmpl+=tmplStride, img+=srcStride)
+                {
+                    size_t j = 0;
+                    for(; j < tmplroiw; j+=8)
+                    {
+                        uint8x8_t vtmpl = vld1_u8(tmpl + j);
+
+                        uint8x8_t vimg0 = vld1_u8(img + j + c + 0);
+                        uint8x8_t vimg1 = vld1_u8(img + j + c + 1);
+
+                        uint16x8_t vd0 = vmull_u8(vtmpl, vimg0);
+                        uint16x8_t vd1 = vmull_u8(vtmpl, vimg1);
+
+                        vdot0 = vpadalq_u16(vdot0, vd0);
+                        vdot1 = vpadalq_u16(vdot1, vd1);
+                    }
+                    for(; j < tmplW; ++j)
+                    {
+                        dot[0] += tmpl[j] * img[j + c + 0];
+                        dot[1] += tmpl[j] * img[j + c + 1];
+                    }
+                }
+                uint32x2_t vdotx  = vld1_u32(dot);
+                uint32x2_t vdot_0 = vpadd_u32(vget_low_u32(vdot0), vget_high_u32(vdot0));
+                uint32x2_t vdot_1 = vpadd_u32(vget_low_u32(vdot1), vget_high_u32(vdot1));
+                uint32x2_t vdot_  = vpadd_u32(vdot_0, vdot_1);
+                vst1_f32(corr + c, vcvt_f32_u32(vadd_u32(vdotx, vdot_)));
+            }
+
+            for(; c < dstW; ++c)
+            {
+                u32 dot = 0;
+                uint32x4_t vdot = vmovq_n_u32(0);
+                const u8  *img = imgrrow;
+                const u8 *tmpl = tmplBase;
+                for(size_t i = 0; i < tmplH; ++i, tmpl+=tmplStride, img+=srcStride)
+                {
+                    size_t j = 0;
+                    for(; j < tmplroiw; j+=8)
+                    {
+                        uint8x8_t vtmpl = vld1_u8(tmpl + j);
+                        uint8x8_t vimg  = vld1_u8(img + j + c);
+                        uint16x8_t vd   = vmull_u8(vtmpl, vimg);
+                        vdot = vpadalq_u16(vdot, vd);
+                    }
+                    for(; j < tmplW; ++j)
+                        dot += tmpl[j] * img[j + c];
+                }
+                u32 wdot[2];
+                vst1_u32(wdot, vpadd_u32(vget_low_u32(vdot), vget_high_u32(vdot)));
+                dot += wdot[0] + wdot[1];
+                corr[c] = (f32)dot;
+            }
+        }
+    }
+
+    if(normalize)
+    {
+        f32 tn = std::sqrt((f32)normL2(tmplSize, tmplBase, tmplStride));
+
+        size_t iw = srcSize.width+1;
+        size_t ih = srcSize.height+1;
+        std::vector<f64> _sqsum(iw*ih);
+        f64 *sqsum = &_sqsum[0];
+        memset(sqsum, 0, iw*sizeof(f64));
+        for(size_t i = 1; i < ih; ++i)
+            sqsum[iw*i] = 0.;
+        sqrIntegral(srcSize, srcBase, srcStride, sqsum + iw + 1, iw*sizeof(f64));
+
+        for(size_t i = 0; i < dstH; ++i)
+        {
+            f32 *result = internal::getRowPtr(dstBase, dstStride, i);
+            for(size_t j = 0; j < dstW; ++j)
+            {
+                double s2 = sqsum[iw*i + j] +
+                            sqsum[iw*(i + tmplSize.height) + j + tmplSize.width] -
+                            sqsum[iw*(i + tmplSize.height) + j] -
+                            sqsum[iw*i + j + tmplSize.width];
+
+                result[j] /= tn * std::sqrt(s2);
+            }
+        }
+    }
+#else
+    (void)srcSize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)tmplBase;
+    (void)tmplStride;
+    (void)dstBase;
+    (void)dstStride;
+    (void)normalize;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/vtransform.hpp

@@ -0,0 +1,689 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2014-2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#ifndef CAROTENE_SRC_VTRANSFORM_HPP
+#define CAROTENE_SRC_VTRANSFORM_HPP
+
+#include "common.hpp"
+
+#include <carotene/types.hpp>
+
+#ifdef CAROTENE_NEON
+
+namespace CAROTENE_NS { namespace internal {
+
+////////////////////////////// Type Traits ///////////////////////
+
+template <typename T, int cn = 1>
+struct VecTraits;
+
+template <> struct VecTraits< u8, 1> { typedef  uint8x16_t vec128; typedef   uint8x8_t vec64; typedef VecTraits<  u8, 1> unsign; };
+template <> struct VecTraits< s8, 1> { typedef   int8x16_t vec128; typedef    int8x8_t vec64; typedef VecTraits<  u8, 1> unsign; };
+template <> struct VecTraits<u16, 1> { typedef  uint16x8_t vec128; typedef  uint16x4_t vec64; typedef VecTraits< u16, 1> unsign; };
+template <> struct VecTraits<s16, 1> { typedef   int16x8_t vec128; typedef   int16x4_t vec64; typedef VecTraits< u16, 1> unsign; };
+template <> struct VecTraits<s32, 1> { typedef   int32x4_t vec128; typedef   int32x2_t vec64; typedef VecTraits< u32, 1> unsign; };
+template <> struct VecTraits<u32, 1> { typedef  uint32x4_t vec128; typedef  uint32x2_t vec64; typedef VecTraits< u32, 1> unsign; };
+template <> struct VecTraits<s64, 1> { typedef   int64x2_t vec128; typedef   int64x1_t vec64; typedef VecTraits< u64, 1> unsign; };
+template <> struct VecTraits<u64, 1> { typedef  uint64x2_t vec128; typedef  uint64x1_t vec64; typedef VecTraits< u64, 1> unsign; };
+template <> struct VecTraits<f32, 1> { typedef float32x4_t vec128; typedef float32x2_t vec64; typedef VecTraits< u32, 1> unsign; };
+
+template <> struct VecTraits< u8, 2> { typedef  uint8x16x2_t vec128; typedef   uint8x8x2_t vec64; typedef VecTraits<  u8, 2> unsign; };
+template <> struct VecTraits< s8, 2> { typedef   int8x16x2_t vec128; typedef    int8x8x2_t vec64; typedef VecTraits<  u8, 2> unsign; };
+template <> struct VecTraits<u16, 2> { typedef  uint16x8x2_t vec128; typedef  uint16x4x2_t vec64; typedef VecTraits< u16, 2> unsign; };
+template <> struct VecTraits<s16, 2> { typedef   int16x8x2_t vec128; typedef   int16x4x2_t vec64; typedef VecTraits< u16, 2> unsign; };
+template <> struct VecTraits<s32, 2> { typedef   int32x4x2_t vec128; typedef   int32x2x2_t vec64; typedef VecTraits< u32, 2> unsign; };
+template <> struct VecTraits<u32, 2> { typedef  uint32x4x2_t vec128; typedef  uint32x2x2_t vec64; typedef VecTraits< u32, 2> unsign; };
+template <> struct VecTraits<s64, 2> { typedef   int64x2x2_t vec128; typedef   int64x1x2_t vec64; typedef VecTraits< u64, 2> unsign; };
+template <> struct VecTraits<u64, 2> { typedef  uint64x2x2_t vec128; typedef  uint64x1x2_t vec64; typedef VecTraits< u64, 2> unsign; };
+template <> struct VecTraits<f32, 2> { typedef float32x4x2_t vec128; typedef float32x2x2_t vec64; typedef VecTraits< u32, 2> unsign; };
+
+template <> struct VecTraits< u8, 3> { typedef  uint8x16x3_t vec128; typedef   uint8x8x3_t vec64; typedef VecTraits<  u8, 3> unsign; };
+template <> struct VecTraits< s8, 3> { typedef   int8x16x3_t vec128; typedef    int8x8x3_t vec64; typedef VecTraits<  u8, 3> unsign; };
+template <> struct VecTraits<u16, 3> { typedef  uint16x8x3_t vec128; typedef  uint16x4x3_t vec64; typedef VecTraits< u16, 3> unsign; };
+template <> struct VecTraits<s16, 3> { typedef   int16x8x3_t vec128; typedef   int16x4x3_t vec64; typedef VecTraits< u16, 3> unsign; };
+template <> struct VecTraits<s32, 3> { typedef   int32x4x3_t vec128; typedef   int32x2x3_t vec64; typedef VecTraits< u32, 3> unsign; };
+template <> struct VecTraits<u32, 3> { typedef  uint32x4x3_t vec128; typedef  uint32x2x3_t vec64; typedef VecTraits< u32, 3> unsign; };
+template <> struct VecTraits<s64, 3> { typedef   int64x2x3_t vec128; typedef   int64x1x3_t vec64; typedef VecTraits< u64, 2> unsign; };
+template <> struct VecTraits<u64, 3> { typedef  uint64x2x3_t vec128; typedef  uint64x1x3_t vec64; typedef VecTraits< u64, 2> unsign; };
+template <> struct VecTraits<f32, 3> { typedef float32x4x3_t vec128; typedef float32x2x3_t vec64; typedef VecTraits< u32, 3> unsign; };
+
+template <> struct VecTraits< u8, 4> { typedef  uint8x16x4_t vec128; typedef   uint8x8x4_t vec64; typedef VecTraits<  u8, 3> unsign; };
+template <> struct VecTraits< s8, 4> { typedef   int8x16x4_t vec128; typedef    int8x8x4_t vec64; typedef VecTraits<  u8, 3> unsign; };
+template <> struct VecTraits<u16, 4> { typedef  uint16x8x4_t vec128; typedef  uint16x4x4_t vec64; typedef VecTraits< u16, 3> unsign; };
+template <> struct VecTraits<s16, 4> { typedef   int16x8x4_t vec128; typedef   int16x4x4_t vec64; typedef VecTraits< u16, 3> unsign; };
+template <> struct VecTraits<s32, 4> { typedef   int32x4x4_t vec128; typedef   int32x2x4_t vec64; typedef VecTraits< u32, 3> unsign; };
+template <> struct VecTraits<u32, 4> { typedef  uint32x4x4_t vec128; typedef  uint32x2x4_t vec64; typedef VecTraits< u32, 3> unsign; };
+template <> struct VecTraits<s64, 4> { typedef   int64x2x4_t vec128; typedef   int64x1x4_t vec64; typedef VecTraits< u64, 2> unsign; };
+template <> struct VecTraits<u64, 4> { typedef  uint64x2x4_t vec128; typedef  uint64x1x4_t vec64; typedef VecTraits< u64, 2> unsign; };
+template <> struct VecTraits<f32, 4> { typedef float32x4x4_t vec128; typedef float32x2x4_t vec64; typedef VecTraits< u32, 3> unsign; };
+
+////////////////////////////// vld1q ///////////////////////
+
+inline  uint8x16_t vld1q(const u8  * ptr) { return  vld1q_u8(ptr); }
+inline   int8x16_t vld1q(const s8  * ptr) { return  vld1q_s8(ptr); }
+inline  uint16x8_t vld1q(const u16 * ptr) { return vld1q_u16(ptr); }
+inline   int16x8_t vld1q(const s16 * ptr) { return vld1q_s16(ptr); }
+inline  uint32x4_t vld1q(const u32 * ptr) { return vld1q_u32(ptr); }
+inline   int32x4_t vld1q(const s32 * ptr) { return vld1q_s32(ptr); }
+inline float32x4_t vld1q(const f32 * ptr) { return vld1q_f32(ptr); }
+
+////////////////////////////// vld1 ///////////////////////
+
+inline   uint8x8_t vld1(const u8  * ptr) { return  vld1_u8(ptr); }
+inline    int8x8_t vld1(const s8  * ptr) { return  vld1_s8(ptr); }
+inline  uint16x4_t vld1(const u16 * ptr) { return vld1_u16(ptr); }
+inline   int16x4_t vld1(const s16 * ptr) { return vld1_s16(ptr); }
+inline  uint32x2_t vld1(const u32 * ptr) { return vld1_u32(ptr); }
+inline   int32x2_t vld1(const s32 * ptr) { return vld1_s32(ptr); }
+inline float32x2_t vld1(const f32 * ptr) { return vld1_f32(ptr); }
+
+////////////////////////////// vld2q ///////////////////////
+
+inline  uint8x16x2_t vld2q(const u8  * ptr) { return  vld2q_u8(ptr); }
+inline   int8x16x2_t vld2q(const s8  * ptr) { return  vld2q_s8(ptr); }
+inline  uint16x8x2_t vld2q(const u16 * ptr) { return vld2q_u16(ptr); }
+inline   int16x8x2_t vld2q(const s16 * ptr) { return vld2q_s16(ptr); }
+inline  uint32x4x2_t vld2q(const u32 * ptr) { return vld2q_u32(ptr); }
+inline   int32x4x2_t vld2q(const s32 * ptr) { return vld2q_s32(ptr); }
+inline float32x4x2_t vld2q(const f32 * ptr) { return vld2q_f32(ptr); }
+
+////////////////////////////// vld2 ///////////////////////
+
+inline   uint8x8x2_t vld2(const u8  * ptr) { return  vld2_u8(ptr); }
+inline    int8x8x2_t vld2(const s8  * ptr) { return  vld2_s8(ptr); }
+inline  uint16x4x2_t vld2(const u16 * ptr) { return vld2_u16(ptr); }
+inline   int16x4x2_t vld2(const s16 * ptr) { return vld2_s16(ptr); }
+inline  uint32x2x2_t vld2(const u32 * ptr) { return vld2_u32(ptr); }
+inline   int32x2x2_t vld2(const s32 * ptr) { return vld2_s32(ptr); }
+inline float32x2x2_t vld2(const f32 * ptr) { return vld2_f32(ptr); }
+
+////////////////////////////// vld3q ///////////////////////
+
+inline  uint8x16x3_t vld3q(const u8  * ptr) { return  vld3q_u8(ptr); }
+inline   int8x16x3_t vld3q(const s8  * ptr) { return  vld3q_s8(ptr); }
+inline  uint16x8x3_t vld3q(const u16 * ptr) { return vld3q_u16(ptr); }
+inline   int16x8x3_t vld3q(const s16 * ptr) { return vld3q_s16(ptr); }
+inline  uint32x4x3_t vld3q(const u32 * ptr) { return vld3q_u32(ptr); }
+inline   int32x4x3_t vld3q(const s32 * ptr) { return vld3q_s32(ptr); }
+inline float32x4x3_t vld3q(const f32 * ptr) { return vld3q_f32(ptr); }
+
+////////////////////////////// vld3 ///////////////////////
+
+inline   uint8x8x3_t vld3(const u8  * ptr) { return  vld3_u8(ptr); }
+inline    int8x8x3_t vld3(const s8  * ptr) { return  vld3_s8(ptr); }
+inline  uint16x4x3_t vld3(const u16 * ptr) { return vld3_u16(ptr); }
+inline   int16x4x3_t vld3(const s16 * ptr) { return vld3_s16(ptr); }
+inline  uint32x2x3_t vld3(const u32 * ptr) { return vld3_u32(ptr); }
+inline   int32x2x3_t vld3(const s32 * ptr) { return vld3_s32(ptr); }
+inline float32x2x3_t vld3(const f32 * ptr) { return vld3_f32(ptr); }
+
+////////////////////////////// vld4q ///////////////////////
+
+inline  uint8x16x4_t vld4q(const u8  * ptr) { return  vld4q_u8(ptr); }
+inline   int8x16x4_t vld4q(const s8  * ptr) { return  vld4q_s8(ptr); }
+inline  uint16x8x4_t vld4q(const u16 * ptr) { return vld4q_u16(ptr); }
+inline   int16x8x4_t vld4q(const s16 * ptr) { return vld4q_s16(ptr); }
+inline  uint32x4x4_t vld4q(const u32 * ptr) { return vld4q_u32(ptr); }
+inline   int32x4x4_t vld4q(const s32 * ptr) { return vld4q_s32(ptr); }
+inline float32x4x4_t vld4q(const f32 * ptr) { return vld4q_f32(ptr); }
+
+////////////////////////////// vld4 ///////////////////////
+
+inline   uint8x8x4_t vld4(const u8  * ptr) { return  vld4_u8(ptr); }
+inline    int8x8x4_t vld4(const s8  * ptr) { return  vld4_s8(ptr); }
+inline  uint16x4x4_t vld4(const u16 * ptr) { return vld4_u16(ptr); }
+inline   int16x4x4_t vld4(const s16 * ptr) { return vld4_s16(ptr); }
+inline  uint32x2x4_t vld4(const u32 * ptr) { return vld4_u32(ptr); }
+inline   int32x2x4_t vld4(const s32 * ptr) { return vld4_s32(ptr); }
+inline float32x2x4_t vld4(const f32 * ptr) { return vld4_f32(ptr); }
+
+////////////////////////////// vst1q ///////////////////////
+
+inline void vst1q(u8  * ptr, const uint8x16_t  & v) { return vst1q_u8(ptr,  v); }
+inline void vst1q(s8  * ptr, const int8x16_t   & v) { return vst1q_s8(ptr,  v); }
+inline void vst1q(u16 * ptr, const uint16x8_t  & v) { return vst1q_u16(ptr, v); }
+inline void vst1q(s16 * ptr, const int16x8_t   & v) { return vst1q_s16(ptr, v); }
+inline void vst1q(u32 * ptr, const uint32x4_t  & v) { return vst1q_u32(ptr, v); }
+inline void vst1q(s32 * ptr, const int32x4_t   & v) { return vst1q_s32(ptr, v); }
+inline void vst1q(f32 * ptr, const float32x4_t & v) { return vst1q_f32(ptr, v); }
+
+////////////////////////////// vst1 ///////////////////////
+
+inline void vst1(u8  * ptr, const uint8x8_t   & v) { return vst1_u8(ptr,  v); }
+inline void vst1(s8  * ptr, const int8x8_t    & v) { return vst1_s8(ptr,  v); }
+inline void vst1(u16 * ptr, const uint16x4_t  & v) { return vst1_u16(ptr, v); }
+inline void vst1(s16 * ptr, const int16x4_t   & v) { return vst1_s16(ptr, v); }
+inline void vst1(u32 * ptr, const uint32x2_t  & v) { return vst1_u32(ptr, v); }
+inline void vst1(s32 * ptr, const int32x2_t   & v) { return vst1_s32(ptr, v); }
+inline void vst1(f32 * ptr, const float32x2_t & v) { return vst1_f32(ptr, v); }
+
+////////////////////////////// vst2q ///////////////////////
+
+inline void vst2q(u8  * ptr, const uint8x16x2_t  & v) { return vst2q_u8(ptr,  v); }
+inline void vst2q(s8  * ptr, const int8x16x2_t   & v) { return vst2q_s8(ptr,  v); }
+inline void vst2q(u16 * ptr, const uint16x8x2_t  & v) { return vst2q_u16(ptr, v); }
+inline void vst2q(s16 * ptr, const int16x8x2_t   & v) { return vst2q_s16(ptr, v); }
+inline void vst2q(u32 * ptr, const uint32x4x2_t  & v) { return vst2q_u32(ptr, v); }
+inline void vst2q(s32 * ptr, const int32x4x2_t   & v) { return vst2q_s32(ptr, v); }
+inline void vst2q(f32 * ptr, const float32x4x2_t & v) { return vst2q_f32(ptr, v); }
+
+////////////////////////////// vst2 ///////////////////////
+
+inline void vst2(u8  * ptr, const uint8x8x2_t   & v) { return vst2_u8(ptr,  v); }
+inline void vst2(s8  * ptr, const int8x8x2_t    & v) { return vst2_s8(ptr,  v); }
+inline void vst2(u16 * ptr, const uint16x4x2_t  & v) { return vst2_u16(ptr, v); }
+inline void vst2(s16 * ptr, const int16x4x2_t   & v) { return vst2_s16(ptr, v); }
+inline void vst2(u32 * ptr, const uint32x2x2_t  & v) { return vst2_u32(ptr, v); }
+inline void vst2(s32 * ptr, const int32x2x2_t   & v) { return vst2_s32(ptr, v); }
+inline void vst2(f32 * ptr, const float32x2x2_t & v) { return vst2_f32(ptr, v); }
+
+////////////////////////////// vst3q ///////////////////////
+
+inline void vst3q(u8  * ptr, const uint8x16x3_t  & v) { return vst3q_u8(ptr,  v); }
+inline void vst3q(s8  * ptr, const int8x16x3_t   & v) { return vst3q_s8(ptr,  v); }
+inline void vst3q(u16 * ptr, const uint16x8x3_t  & v) { return vst3q_u16(ptr, v); }
+inline void vst3q(s16 * ptr, const int16x8x3_t   & v) { return vst3q_s16(ptr, v); }
+inline void vst3q(u32 * ptr, const uint32x4x3_t  & v) { return vst3q_u32(ptr, v); }
+inline void vst3q(s32 * ptr, const int32x4x3_t   & v) { return vst3q_s32(ptr, v); }
+inline void vst3q(f32 * ptr, const float32x4x3_t & v) { return vst3q_f32(ptr, v); }
+
+////////////////////////////// vst3 ///////////////////////
+
+inline void vst3(u8  * ptr, const uint8x8x3_t   & v) { return vst3_u8(ptr,  v); }
+inline void vst3(s8  * ptr, const int8x8x3_t    & v) { return vst3_s8(ptr,  v); }
+inline void vst3(u16 * ptr, const uint16x4x3_t  & v) { return vst3_u16(ptr, v); }
+inline void vst3(s16 * ptr, const int16x4x3_t   & v) { return vst3_s16(ptr, v); }
+inline void vst3(u32 * ptr, const uint32x2x3_t  & v) { return vst3_u32(ptr, v); }
+inline void vst3(s32 * ptr, const int32x2x3_t   & v) { return vst3_s32(ptr, v); }
+inline void vst3(f32 * ptr, const float32x2x3_t & v) { return vst3_f32(ptr, v); }
+
+////////////////////////////// vst4q ///////////////////////
+
+inline void vst4q(u8  * ptr, const uint8x16x4_t  & v) { return vst4q_u8(ptr,  v); }
+inline void vst4q(s8  * ptr, const int8x16x4_t   & v) { return vst4q_s8(ptr,  v); }
+inline void vst4q(u16 * ptr, const uint16x8x4_t  & v) { return vst4q_u16(ptr, v); }
+inline void vst4q(s16 * ptr, const int16x8x4_t   & v) { return vst4q_s16(ptr, v); }
+inline void vst4q(u32 * ptr, const uint32x4x4_t  & v) { return vst4q_u32(ptr, v); }
+inline void vst4q(s32 * ptr, const int32x4x4_t   & v) { return vst4q_s32(ptr, v); }
+inline void vst4q(f32 * ptr, const float32x4x4_t & v) { return vst4q_f32(ptr, v); }
+
+////////////////////////////// vst4 ///////////////////////
+
+inline void vst4(u8  * ptr, const uint8x8x4_t   & v) { return vst4_u8(ptr,  v); }
+inline void vst4(s8  * ptr, const int8x8x4_t    & v) { return vst4_s8(ptr,  v); }
+inline void vst4(u16 * ptr, const uint16x4x4_t  & v) { return vst4_u16(ptr, v); }
+inline void vst4(s16 * ptr, const int16x4x4_t   & v) { return vst4_s16(ptr, v); }
+inline void vst4(u32 * ptr, const uint32x2x4_t  & v) { return vst4_u32(ptr, v); }
+inline void vst4(s32 * ptr, const int32x2x4_t   & v) { return vst4_s32(ptr, v); }
+inline void vst4(f32 * ptr, const float32x2x4_t & v) { return vst4_f32(ptr, v); }
+
+////////////////////////////// vabdq ///////////////////////
+
+inline  uint8x16_t vabdq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vabdq_u8 (v0, v1); }
+inline   int8x16_t vabdq(const int8x16_t   & v0, const int8x16_t   & v1) { return vabdq_s8 (v0, v1); }
+inline  uint16x8_t vabdq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vabdq_u16(v0, v1); }
+inline   int16x8_t vabdq(const int16x8_t   & v0, const int16x8_t   & v1) { return vabdq_s16(v0, v1); }
+inline  uint32x4_t vabdq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vabdq_u32(v0, v1); }
+inline   int32x4_t vabdq(const int32x4_t   & v0, const int32x4_t   & v1) { return vabdq_s32(v0, v1); }
+inline float32x4_t vabdq(const float32x4_t & v0, const float32x4_t & v1) { return vabdq_f32(v0, v1); }
+
+////////////////////////////// vabd ///////////////////////
+
+inline   uint8x8_t vabd(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vabd_u8 (v0, v1); }
+inline    int8x8_t vabd(const int8x8_t    & v0, const int8x8_t    & v1) { return vabd_s8 (v0, v1); }
+inline  uint16x4_t vabd(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vabd_u16(v0, v1); }
+inline   int16x4_t vabd(const int16x4_t   & v0, const int16x4_t   & v1) { return vabd_s16(v0, v1); }
+inline  uint32x2_t vabd(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vabd_u32(v0, v1); }
+inline   int32x2_t vabd(const int32x2_t   & v0, const int32x2_t   & v1) { return vabd_s32(v0, v1); }
+inline float32x2_t vabd(const float32x2_t & v0, const float32x2_t & v1) { return vabd_f32(v0, v1); }
+
+////////////////////////////// vminq ///////////////////////
+
+inline  uint8x16_t vminq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vminq_u8 (v0, v1); }
+inline   int8x16_t vminq(const int8x16_t   & v0, const int8x16_t   & v1) { return vminq_s8 (v0, v1); }
+inline  uint16x8_t vminq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vminq_u16(v0, v1); }
+inline   int16x8_t vminq(const int16x8_t   & v0, const int16x8_t   & v1) { return vminq_s16(v0, v1); }
+inline  uint32x4_t vminq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vminq_u32(v0, v1); }
+inline   int32x4_t vminq(const int32x4_t   & v0, const int32x4_t   & v1) { return vminq_s32(v0, v1); }
+inline float32x4_t vminq(const float32x4_t & v0, const float32x4_t & v1) { return vminq_f32(v0, v1); }
+
+////////////////////////////// vmin ///////////////////////
+
+inline   uint8x8_t vmin(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vmin_u8 (v0, v1); }
+inline    int8x8_t vmin(const int8x8_t    & v0, const int8x8_t    & v1) { return vmin_s8 (v0, v1); }
+inline  uint16x4_t vmin(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vmin_u16(v0, v1); }
+inline   int16x4_t vmin(const int16x4_t   & v0, const int16x4_t   & v1) { return vmin_s16(v0, v1); }
+inline  uint32x2_t vmin(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vmin_u32(v0, v1); }
+inline   int32x2_t vmin(const int32x2_t   & v0, const int32x2_t   & v1) { return vmin_s32(v0, v1); }
+inline float32x2_t vmin(const float32x2_t & v0, const float32x2_t & v1) { return vmin_f32(v0, v1); }
+
+////////////////////////////// vmaxq ///////////////////////
+
+inline  uint8x16_t vmaxq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vmaxq_u8 (v0, v1); }
+inline   int8x16_t vmaxq(const int8x16_t   & v0, const int8x16_t   & v1) { return vmaxq_s8 (v0, v1); }
+inline  uint16x8_t vmaxq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vmaxq_u16(v0, v1); }
+inline   int16x8_t vmaxq(const int16x8_t   & v0, const int16x8_t   & v1) { return vmaxq_s16(v0, v1); }
+inline  uint32x4_t vmaxq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vmaxq_u32(v0, v1); }
+inline   int32x4_t vmaxq(const int32x4_t   & v0, const int32x4_t   & v1) { return vmaxq_s32(v0, v1); }
+inline float32x4_t vmaxq(const float32x4_t & v0, const float32x4_t & v1) { return vmaxq_f32(v0, v1); }
+
+////////////////////////////// vmax ///////////////////////
+
+inline   uint8x8_t vmax(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vmax_u8 (v0, v1); }
+inline    int8x8_t vmax(const int8x8_t    & v0, const int8x8_t    & v1) { return vmax_s8 (v0, v1); }
+inline  uint16x4_t vmax(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vmax_u16(v0, v1); }
+inline   int16x4_t vmax(const int16x4_t   & v0, const int16x4_t   & v1) { return vmax_s16(v0, v1); }
+inline  uint32x2_t vmax(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vmax_u32(v0, v1); }
+inline   int32x2_t vmax(const int32x2_t   & v0, const int32x2_t   & v1) { return vmax_s32(v0, v1); }
+inline float32x2_t vmax(const float32x2_t & v0, const float32x2_t & v1) { return vmax_f32(v0, v1); }
+
+////////////////////////////// vdupq_n ///////////////////////
+
+inline  uint8x16_t vdupq_n(const u8  & val) { return  vdupq_n_u8(val); }
+inline   int8x16_t vdupq_n(const s8  & val) { return  vdupq_n_s8(val); }
+inline  uint16x8_t vdupq_n(const u16 & val) { return vdupq_n_u16(val); }
+inline   int16x8_t vdupq_n(const s16 & val) { return vdupq_n_s16(val); }
+inline  uint32x4_t vdupq_n(const u32 & val) { return vdupq_n_u32(val); }
+inline   int32x4_t vdupq_n(const s32 & val) { return vdupq_n_s32(val); }
+inline  uint64x2_t vdupq_n(const u64 & val) { return vdupq_n_u64(val); }
+inline   int64x2_t vdupq_n(const s64 & val) { return vdupq_n_s64(val); }
+inline float32x4_t vdupq_n(const f32 & val) { return vdupq_n_f32(val); }
+
+////////////////////////////// vdup_n ///////////////////////
+
+inline   uint8x8_t vdup_n(const u8  & val) { return  vdup_n_u8(val); }
+inline    int8x8_t vdup_n(const s8  & val) { return  vdup_n_s8(val); }
+inline  uint16x4_t vdup_n(const u16 & val) { return vdup_n_u16(val); }
+inline   int16x4_t vdup_n(const s16 & val) { return vdup_n_s16(val); }
+inline  uint32x2_t vdup_n(const u32 & val) { return vdup_n_u32(val); }
+inline   int32x2_t vdup_n(const s32 & val) { return vdup_n_s32(val); }
+inline  uint64x1_t vdup_n(const u64 & val) { return vdup_n_u64(val); }
+inline   int64x1_t vdup_n(const s64 & val) { return vdup_n_s64(val); }
+inline float32x2_t vdup_n(const f32 & val) { return vdup_n_f32(val); }
+
+////////////////////////////// vget_low ///////////////////////
+
+inline uint8x8_t   vget_low(const uint8x16_t  & v) { return vget_low_u8 (v); }
+inline int8x8_t    vget_low(const int8x16_t   & v) { return vget_low_s8 (v); }
+inline uint16x4_t  vget_low(const uint16x8_t  & v) { return vget_low_u16(v); }
+inline int16x4_t   vget_low(const int16x8_t   & v) { return vget_low_s16(v); }
+inline uint32x2_t  vget_low(const uint32x4_t  & v) { return vget_low_u32(v); }
+inline int32x2_t   vget_low(const int32x4_t   & v) { return vget_low_s32(v); }
+inline float32x2_t vget_low(const float32x4_t & v) { return vget_low_f32(v); }
+
+////////////////////////////// vget_high ///////////////////////
+
+inline uint8x8_t   vget_high(const uint8x16_t  & v) { return vget_high_u8 (v); }
+inline int8x8_t    vget_high(const int8x16_t   & v) { return vget_high_s8 (v); }
+inline uint16x4_t  vget_high(const uint16x8_t  & v) { return vget_high_u16(v); }
+inline int16x4_t   vget_high(const int16x8_t   & v) { return vget_high_s16(v); }
+inline uint32x2_t  vget_high(const uint32x4_t  & v) { return vget_high_u32(v); }
+inline int32x2_t   vget_high(const int32x4_t   & v) { return vget_high_s32(v); }
+inline float32x2_t vget_high(const float32x4_t & v) { return vget_high_f32(v); }
+
+////////////////////////////// vcombine ///////////////////////
+
+inline   uint8x16_t vcombine(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vcombine_u8 (v0, v1); }
+inline    int8x16_t vcombine(const int8x8_t    & v0, const int8x8_t    & v1) { return vcombine_s8 (v0, v1); }
+inline  uint16x8_t  vcombine(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vcombine_u16(v0, v1); }
+inline   int16x8_t  vcombine(const int16x4_t   & v0, const int16x4_t   & v1) { return vcombine_s16(v0, v1); }
+inline  uint32x4_t  vcombine(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vcombine_u32(v0, v1); }
+inline   int32x4_t  vcombine(const int32x2_t   & v0, const int32x2_t   & v1) { return vcombine_s32(v0, v1); }
+inline float32x4_t  vcombine(const float32x2_t & v0, const float32x2_t & v1) { return vcombine_f32(v0, v1); }
+
+////////////////////////////// vaddq ///////////////////////
+
+inline  uint8x16_t vaddq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vaddq_u8 (v0, v1); }
+inline   int8x16_t vaddq(const int8x16_t   & v0, const int8x16_t   & v1) { return vaddq_s8 (v0, v1); }
+inline  uint16x8_t vaddq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vaddq_u16(v0, v1); }
+inline   int16x8_t vaddq(const int16x8_t   & v0, const int16x8_t   & v1) { return vaddq_s16(v0, v1); }
+inline  uint32x4_t vaddq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vaddq_u32(v0, v1); }
+inline   int32x4_t vaddq(const int32x4_t   & v0, const int32x4_t   & v1) { return vaddq_s32(v0, v1); }
+inline float32x4_t vaddq(const float32x4_t & v0, const float32x4_t & v1) { return vaddq_f32(v0, v1); }
+
+////////////////////////////// vadd ///////////////////////
+
+inline   uint8x8_t vadd(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vadd_u8 (v0, v1); }
+inline    int8x8_t vadd(const int8x8_t    & v0, const int8x8_t    & v1) { return vadd_s8 (v0, v1); }
+inline  uint16x4_t vadd(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vadd_u16(v0, v1); }
+inline   int16x4_t vadd(const int16x4_t   & v0, const int16x4_t   & v1) { return vadd_s16(v0, v1); }
+inline  uint32x2_t vadd(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vadd_u32(v0, v1); }
+inline   int32x2_t vadd(const int32x2_t   & v0, const int32x2_t   & v1) { return vadd_s32(v0, v1); }
+inline float32x2_t vadd(const float32x2_t & v0, const float32x2_t & v1) { return vadd_f32(v0, v1); }
+
+////////////////////////////// vqaddq ///////////////////////
+
+inline  uint8x16_t vqaddq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vqaddq_u8 (v0, v1); }
+inline   int8x16_t vqaddq(const int8x16_t   & v0, const int8x16_t   & v1) { return vqaddq_s8 (v0, v1); }
+inline  uint16x8_t vqaddq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vqaddq_u16(v0, v1); }
+inline   int16x8_t vqaddq(const int16x8_t   & v0, const int16x8_t   & v1) { return vqaddq_s16(v0, v1); }
+inline  uint32x4_t vqaddq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vqaddq_u32(v0, v1); }
+inline   int32x4_t vqaddq(const int32x4_t   & v0, const int32x4_t   & v1) { return vqaddq_s32(v0, v1); }
+
+////////////////////////////// vqadd ///////////////////////
+
+inline   uint8x8_t vqadd(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vqadd_u8 (v0, v1); }
+inline    int8x8_t vqadd(const int8x8_t    & v0, const int8x8_t    & v1) { return vqadd_s8 (v0, v1); }
+inline  uint16x4_t vqadd(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vqadd_u16(v0, v1); }
+inline   int16x4_t vqadd(const int16x4_t   & v0, const int16x4_t   & v1) { return vqadd_s16(v0, v1); }
+inline  uint32x2_t vqadd(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vqadd_u32(v0, v1); }
+inline   int32x2_t vqadd(const int32x2_t   & v0, const int32x2_t   & v1) { return vqadd_s32(v0, v1); }
+
+////////////////////////////// vsubq ///////////////////////
+
+inline  uint8x16_t vsubq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vsubq_u8 (v0, v1); }
+inline   int8x16_t vsubq(const int8x16_t   & v0, const int8x16_t   & v1) { return vsubq_s8 (v0, v1); }
+inline  uint16x8_t vsubq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vsubq_u16(v0, v1); }
+inline   int16x8_t vsubq(const int16x8_t   & v0, const int16x8_t   & v1) { return vsubq_s16(v0, v1); }
+inline  uint32x4_t vsubq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vsubq_u32(v0, v1); }
+inline   int32x4_t vsubq(const int32x4_t   & v0, const int32x4_t   & v1) { return vsubq_s32(v0, v1); }
+inline float32x4_t vsubq(const float32x4_t & v0, const float32x4_t & v1) { return vsubq_f32(v0, v1); }
+
+////////////////////////////// vsub ///////////////////////
+
+inline   uint8x8_t vsub(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vsub_u8 (v0, v1); }
+inline    int8x8_t vsub(const int8x8_t    & v0, const int8x8_t    & v1) { return vsub_s8 (v0, v1); }
+inline  uint16x4_t vsub(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vsub_u16(v0, v1); }
+inline   int16x4_t vsub(const int16x4_t   & v0, const int16x4_t   & v1) { return vsub_s16(v0, v1); }
+inline  uint32x2_t vsub(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vsub_u32(v0, v1); }
+inline   int32x2_t vsub(const int32x2_t   & v0, const int32x2_t   & v1) { return vsub_s32(v0, v1); }
+inline float32x2_t vsub(const float32x2_t & v0, const float32x2_t & v1) { return vsub_f32(v0, v1); }
+
+////////////////////////////// vqsubq ///////////////////////
+
+inline  uint8x16_t vqsubq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vqsubq_u8 (v0, v1); }
+inline   int8x16_t vqsubq(const int8x16_t   & v0, const int8x16_t   & v1) { return vqsubq_s8 (v0, v1); }
+inline  uint16x8_t vqsubq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vqsubq_u16(v0, v1); }
+inline   int16x8_t vqsubq(const int16x8_t   & v0, const int16x8_t   & v1) { return vqsubq_s16(v0, v1); }
+inline  uint32x4_t vqsubq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vqsubq_u32(v0, v1); }
+inline   int32x4_t vqsubq(const int32x4_t   & v0, const int32x4_t   & v1) { return vqsubq_s32(v0, v1); }
+inline  uint64x2_t vqsubq(const uint64x2_t  & v0, const uint64x2_t  & v1) { return vqsubq_u64(v0, v1); }
+inline   int64x2_t vqsubq(const int64x2_t   & v0, const int64x2_t   & v1) { return vqsubq_s64(v0, v1); }
+
+////////////////////////////// vqsub ///////////////////////
+
+inline   uint8x8_t vqsub(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vqsub_u8 (v0, v1); }
+inline    int8x8_t vqsub(const int8x8_t    & v0, const int8x8_t    & v1) { return vqsub_s8 (v0, v1); }
+inline  uint16x4_t vqsub(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vqsub_u16(v0, v1); }
+inline   int16x4_t vqsub(const int16x4_t   & v0, const int16x4_t   & v1) { return vqsub_s16(v0, v1); }
+inline  uint32x2_t vqsub(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vqsub_u32(v0, v1); }
+inline   int32x2_t vqsub(const int32x2_t   & v0, const int32x2_t   & v1) { return vqsub_s32(v0, v1); }
+inline  uint64x1_t vqsub(const uint64x1_t  & v0, const uint64x1_t  & v1) { return vqsub_u64(v0, v1); }
+inline   int64x1_t vqsub(const int64x1_t   & v0, const int64x1_t   & v1) { return vqsub_s64(v0, v1); }
+
+////////////////////////////// vmull ///////////////////////
+
+inline  uint16x8_t vmull(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vmull_u8 (v0, v1); }
+inline   int16x8_t vmull(const int8x8_t    & v0, const int8x8_t    & v1) { return vmull_s8 (v0, v1); }
+inline  uint32x4_t vmull(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vmull_u16(v0, v1); }
+inline   int32x4_t vmull(const int16x4_t   & v0, const int16x4_t   & v1) { return vmull_s16(v0, v1); }
+inline  uint64x2_t vmull(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vmull_u32(v0, v1); }
+inline   int64x2_t vmull(const int32x2_t   & v0, const int32x2_t   & v1) { return vmull_s32(v0, v1); }
+
+////////////////////////////// vrev64q ///////////////////////
+
+inline uint8x16_t  vrev64q(const uint8x16_t  & v) { return vrev64q_u8 (v); }
+inline int8x16_t   vrev64q(const int8x16_t   & v) { return vrev64q_s8 (v); }
+inline uint16x8_t  vrev64q(const uint16x8_t  & v) { return vrev64q_u16(v); }
+inline int16x8_t   vrev64q(const int16x8_t   & v) { return vrev64q_s16(v); }
+inline uint32x4_t  vrev64q(const uint32x4_t  & v) { return vrev64q_u32(v); }
+inline int32x4_t   vrev64q(const int32x4_t   & v) { return vrev64q_s32(v); }
+inline float32x4_t vrev64q(const float32x4_t & v) { return vrev64q_f32(v); }
+
+////////////////////////////// vrev64 ///////////////////////
+
+inline uint8x8_t   vrev64(const uint8x8_t   & v) { return vrev64_u8 (v); }
+inline int8x8_t    vrev64(const int8x8_t    & v) { return vrev64_s8 (v); }
+inline uint16x4_t  vrev64(const uint16x4_t  & v) { return vrev64_u16(v); }
+inline int16x4_t   vrev64(const int16x4_t   & v) { return vrev64_s16(v); }
+inline uint32x2_t  vrev64(const uint32x2_t  & v) { return vrev64_u32(v); }
+inline int32x2_t   vrev64(const int32x2_t   & v) { return vrev64_s32(v); }
+inline float32x2_t vrev64(const float32x2_t & v) { return vrev64_f32(v); }
+
+////////////////////////////// vceqq ///////////////////////
+
+inline  uint8x16_t vceqq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vceqq_u8 (v0, v1); }
+inline  uint8x16_t vceqq(const int8x16_t   & v0, const int8x16_t   & v1) { return vceqq_s8 (v0, v1); }
+inline  uint16x8_t vceqq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vceqq_u16(v0, v1); }
+inline  uint16x8_t vceqq(const int16x8_t   & v0, const int16x8_t   & v1) { return vceqq_s16(v0, v1); }
+inline  uint32x4_t vceqq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vceqq_u32(v0, v1); }
+inline  uint32x4_t vceqq(const int32x4_t   & v0, const int32x4_t   & v1) { return vceqq_s32(v0, v1); }
+inline  uint32x4_t vceqq(const float32x4_t & v0, const float32x4_t & v1) { return vceqq_f32(v0, v1); }
+
+////////////////////////////// vceq ///////////////////////
+
+inline   uint8x8_t vceq(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vceq_u8 (v0, v1); }
+inline   uint8x8_t vceq(const int8x8_t    & v0, const int8x8_t    & v1) { return vceq_s8 (v0, v1); }
+inline  uint16x4_t vceq(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vceq_u16(v0, v1); }
+inline  uint16x4_t vceq(const int16x4_t   & v0, const int16x4_t   & v1) { return vceq_s16(v0, v1); }
+inline  uint32x2_t vceq(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vceq_u32(v0, v1); }
+inline  uint32x2_t vceq(const int32x2_t   & v0, const int32x2_t   & v1) { return vceq_s32(v0, v1); }
+inline  uint32x2_t vceq(const float32x2_t & v0, const float32x2_t & v1) { return vceq_f32(v0, v1); }
+
+////////////////////////////// vcgtq ///////////////////////
+
+inline  uint8x16_t vcgtq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vcgtq_u8 (v0, v1); }
+inline  uint8x16_t vcgtq(const int8x16_t   & v0, const int8x16_t   & v1) { return vcgtq_s8 (v0, v1); }
+inline  uint16x8_t vcgtq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vcgtq_u16(v0, v1); }
+inline  uint16x8_t vcgtq(const int16x8_t   & v0, const int16x8_t   & v1) { return vcgtq_s16(v0, v1); }
+inline  uint32x4_t vcgtq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vcgtq_u32(v0, v1); }
+inline  uint32x4_t vcgtq(const int32x4_t   & v0, const int32x4_t   & v1) { return vcgtq_s32(v0, v1); }
+inline  uint32x4_t vcgtq(const float32x4_t & v0, const float32x4_t & v1) { return vcgtq_f32(v0, v1); }
+
+////////////////////////////// vcgt ///////////////////////
+
+inline   uint8x8_t vcgt(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vcgt_u8 (v0, v1); }
+inline   uint8x8_t vcgt(const int8x8_t    & v0, const int8x8_t    & v1) { return vcgt_s8 (v0, v1); }
+inline  uint16x4_t vcgt(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vcgt_u16(v0, v1); }
+inline  uint16x4_t vcgt(const int16x4_t   & v0, const int16x4_t   & v1) { return vcgt_s16(v0, v1); }
+inline  uint32x2_t vcgt(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vcgt_u32(v0, v1); }
+inline  uint32x2_t vcgt(const int32x2_t   & v0, const int32x2_t   & v1) { return vcgt_s32(v0, v1); }
+inline  uint32x2_t vcgt(const float32x2_t & v0, const float32x2_t & v1) { return vcgt_f32(v0, v1); }
+
+////////////////////////////// vcgeq ///////////////////////
+
+inline  uint8x16_t vcgeq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vcgeq_u8 (v0, v1); }
+inline  uint8x16_t vcgeq(const int8x16_t   & v0, const int8x16_t   & v1) { return vcgeq_s8 (v0, v1); }
+inline  uint16x8_t vcgeq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vcgeq_u16(v0, v1); }
+inline  uint16x8_t vcgeq(const int16x8_t   & v0, const int16x8_t   & v1) { return vcgeq_s16(v0, v1); }
+inline  uint32x4_t vcgeq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vcgeq_u32(v0, v1); }
+inline  uint32x4_t vcgeq(const int32x4_t   & v0, const int32x4_t   & v1) { return vcgeq_s32(v0, v1); }
+inline  uint32x4_t vcgeq(const float32x4_t & v0, const float32x4_t & v1) { return vcgeq_f32(v0, v1); }
+
+////////////////////////////// vcge ///////////////////////
+
+inline   uint8x8_t vcge(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vcge_u8 (v0, v1); }
+inline   uint8x8_t vcge(const int8x8_t    & v0, const int8x8_t    & v1) { return vcge_s8 (v0, v1); }
+inline  uint16x4_t vcge(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vcge_u16(v0, v1); }
+inline  uint16x4_t vcge(const int16x4_t   & v0, const int16x4_t   & v1) { return vcge_s16(v0, v1); }
+inline  uint32x2_t vcge(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vcge_u32(v0, v1); }
+inline  uint32x2_t vcge(const int32x2_t   & v0, const int32x2_t   & v1) { return vcge_s32(v0, v1); }
+inline  uint32x2_t vcge(const float32x2_t & v0, const float32x2_t & v1) { return vcge_f32(v0, v1); }
+
+////////////////////////////// vandq ///////////////////////
+
+inline  uint8x16_t vandq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vandq_u8 (v0, v1); }
+inline   int8x16_t vandq(const int8x16_t   & v0, const int8x16_t   & v1) { return vandq_s8 (v0, v1); }
+inline  uint16x8_t vandq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vandq_u16(v0, v1); }
+inline   int16x8_t vandq(const int16x8_t   & v0, const int16x8_t   & v1) { return vandq_s16(v0, v1); }
+inline  uint32x4_t vandq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vandq_u32(v0, v1); }
+inline   int32x4_t vandq(const int32x4_t   & v0, const int32x4_t   & v1) { return vandq_s32(v0, v1); }
+
+////////////////////////////// vand ///////////////////////
+
+inline   uint8x8_t vand(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vand_u8 (v0, v1); }
+inline    int8x8_t vand(const int8x8_t    & v0, const int8x8_t    & v1) { return vand_s8 (v0, v1); }
+inline  uint16x4_t vand(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vand_u16(v0, v1); }
+inline   int16x4_t vand(const int16x4_t   & v0, const int16x4_t   & v1) { return vand_s16(v0, v1); }
+inline  uint32x2_t vand(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vand_u32(v0, v1); }
+inline   int32x2_t vand(const int32x2_t   & v0, const int32x2_t   & v1) { return vand_s32(v0, v1); }
+
+////////////////////////////// vmovn ///////////////////////
+
+inline uint8x8_t   vmovn(const uint16x8_t  & v) { return vmovn_u16(v); }
+inline int8x8_t    vmovn(const int16x8_t   & v) { return vmovn_s16(v); }
+inline uint16x4_t  vmovn(const uint32x4_t  & v) { return vmovn_u32(v); }
+inline int16x4_t   vmovn(const int32x4_t   & v) { return vmovn_s32(v); }
+inline uint32x2_t  vmovn(const uint64x2_t  & v) { return vmovn_u64(v); }
+inline int32x2_t   vmovn(const int64x2_t   & v) { return vmovn_s64(v); }
+
+////////////////////////////// vqmovn ///////////////////////
+
+inline uint8x8_t   vqmovn(const uint16x8_t  & v) { return vqmovn_u16(v); }
+inline int8x8_t    vqmovn(const int16x8_t   & v) { return vqmovn_s16(v); }
+inline uint16x4_t  vqmovn(const uint32x4_t  & v) { return vqmovn_u32(v); }
+inline int16x4_t   vqmovn(const int32x4_t   & v) { return vqmovn_s32(v); }
+inline uint32x2_t  vqmovn(const uint64x2_t  & v) { return vqmovn_u64(v); }
+inline int32x2_t   vqmovn(const int64x2_t   & v) { return vqmovn_s64(v); }
+
+////////////////////////////// vmovl ///////////////////////
+
+inline uint16x8_t  vmovl(const uint8x8_t   & v) { return  vmovl_u8(v); }
+inline int16x8_t   vmovl(const int8x8_t    & v) { return  vmovl_s8(v); }
+inline uint32x4_t  vmovl(const uint16x4_t  & v) { return vmovl_u16(v); }
+inline int32x4_t   vmovl(const int16x4_t   & v) { return vmovl_s16(v); }
+
+////////////////////////////// vmvnq ///////////////////////
+
+inline uint8x16_t  vmvnq(const uint8x16_t  & v) { return vmvnq_u8 (v); }
+inline int8x16_t   vmvnq(const int8x16_t   & v) { return vmvnq_s8 (v); }
+inline uint16x8_t  vmvnq(const uint16x8_t  & v) { return vmvnq_u16(v); }
+inline int16x8_t   vmvnq(const int16x8_t   & v) { return vmvnq_s16(v); }
+inline uint32x4_t  vmvnq(const uint32x4_t  & v) { return vmvnq_u32(v); }
+inline int32x4_t   vmvnq(const int32x4_t   & v) { return vmvnq_s32(v); }
+
+////////////////////////////// vmvn ///////////////////////
+
+inline uint8x8_t   vmvn(const uint8x8_t   & v) { return vmvn_u8 (v); }
+inline int8x8_t    vmvn(const int8x8_t    & v) { return vmvn_s8 (v); }
+inline uint16x4_t  vmvn(const uint16x4_t  & v) { return vmvn_u16(v); }
+inline int16x4_t   vmvn(const int16x4_t   & v) { return vmvn_s16(v); }
+inline uint32x2_t  vmvn(const uint32x2_t  & v) { return vmvn_u32(v); }
+inline int32x2_t   vmvn(const int32x2_t   & v) { return vmvn_s32(v); }
+
+////////////////////////////// vbicq ///////////////////////
+
+inline  uint8x16_t vbicq(const uint8x16_t  & v0, const uint8x16_t  & v1) { return vbicq_u8 (v0, v1); }
+inline   int8x16_t vbicq(const int8x16_t   & v0, const int8x16_t   & v1) { return vbicq_s8 (v0, v1); }
+inline  uint16x8_t vbicq(const uint16x8_t  & v0, const uint16x8_t  & v1) { return vbicq_u16(v0, v1); }
+inline   int16x8_t vbicq(const int16x8_t   & v0, const int16x8_t   & v1) { return vbicq_s16(v0, v1); }
+inline  uint32x4_t vbicq(const uint32x4_t  & v0, const uint32x4_t  & v1) { return vbicq_u32(v0, v1); }
+inline   int32x4_t vbicq(const int32x4_t   & v0, const int32x4_t   & v1) { return vbicq_s32(v0, v1); }
+inline  uint64x2_t vbicq(const uint64x2_t  & v0, const uint64x2_t  & v1) { return vbicq_u64(v0, v1); }
+inline   int64x2_t vbicq(const int64x2_t   & v0, const int64x2_t   & v1) { return vbicq_s64(v0, v1); }
+
+////////////////////////////// vbic ///////////////////////
+
+inline   uint8x8_t vbic(const uint8x8_t   & v0, const uint8x8_t   & v1) { return vbic_u8 (v0, v1); }
+inline    int8x8_t vbic(const int8x8_t    & v0, const int8x8_t    & v1) { return vbic_s8 (v0, v1); }
+inline  uint16x4_t vbic(const uint16x4_t  & v0, const uint16x4_t  & v1) { return vbic_u16(v0, v1); }
+inline   int16x4_t vbic(const int16x4_t   & v0, const int16x4_t   & v1) { return vbic_s16(v0, v1); }
+inline  uint32x2_t vbic(const uint32x2_t  & v0, const uint32x2_t  & v1) { return vbic_u32(v0, v1); }
+inline   int32x2_t vbic(const int32x2_t   & v0, const int32x2_t   & v1) { return vbic_s32(v0, v1); }
+inline  uint64x1_t vbic(const uint64x1_t  & v0, const uint64x1_t  & v1) { return vbic_u64(v0, v1); }
+inline   int64x1_t vbic(const int64x1_t   & v0, const int64x1_t   & v1) { return vbic_s64(v0, v1); }
+
+////////////////////////////// vtransform ///////////////////////
+
+template <typename Op>
+void vtransform(Size2D size,
+                const typename Op::type * src0Base, ptrdiff_t src0Stride,
+                const typename Op::type * src1Base, ptrdiff_t src1Stride,
+                typename Op::type * dstBase, ptrdiff_t dstStride, const Op & op)
+{
+    typedef typename Op::type type;
+    typedef typename VecTraits<type>::vec128 vec128;
+    typedef typename VecTraits<type>::vec64 vec64;
+
+    if (src0Stride == src1Stride && src0Stride == dstStride &&
+        src0Stride == (ptrdiff_t)(size.width * sizeof(type)))
+    {
+        size.width *= size.height;
+        size.height = 1;
+    }
+
+    const size_t step_base = 32 / sizeof(type);
+    size_t roiw_base = size.width >= (step_base - 1) ? size.width - step_base + 1 : 0;
+    const size_t step_tail = 8 / sizeof(type);
+    size_t roiw_tail = size.width >= (step_tail - 1) ? size.width - step_tail + 1 : 0;
+
+    for (size_t y = 0; y < size.height; ++y)
+    {
+        const type * src0 = internal::getRowPtr(src0Base, src0Stride, y);
+        const type * src1 = internal::getRowPtr(src1Base, src1Stride, y);
+        typename Op::type * dst = internal::getRowPtr(dstBase, dstStride, y);
+        size_t x = 0;
+
+        for( ; x < roiw_base; x += step_base )
+        {
+            internal::prefetch(src0 + x);
+            internal::prefetch(src1 + x);
+
+            vec128 v_src00 = vld1q(src0 + x), v_src01 = vld1q(src0 + x + 16 / sizeof(type));
+            vec128 v_src10 = vld1q(src1 + x), v_src11 = vld1q(src1 + x + 16 / sizeof(type));
+            vec128 v_dst;
+
+            op(v_src00, v_src10, v_dst);
+            vst1q(dst + x, v_dst);
+
+            op(v_src01, v_src11, v_dst);
+            vst1q(dst + x + 16 / sizeof(type), v_dst);
+        }
+        for( ; x < roiw_tail; x += step_tail )
+        {
+            vec64 v_src0 = vld1(src0 + x);
+            vec64 v_src1 = vld1(src1 + x);
+            vec64 v_dst;
+
+            op(v_src0, v_src1, v_dst);
+            vst1(dst + x, v_dst);
+        }
+
+        for (; x < size.width; ++x)
+        {
+            op(src0 + x, src1 + x, dst + x);
+        }
+    }
+}
+
+} }
+
+#endif // CAROTENE_NEON
+
+#endif

libs/opencv/3rdparty/carotene/src/warp_affine.cpp

@@ -0,0 +1,434 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+#include "remap.hpp"
+
+namespace CAROTENE_NS {
+
+bool isWarpAffineNearestNeighborSupported(const Size2D &ssize)
+{
+#if SIZE_MAX > UINT32_MAX
+    return !(ssize.width > 0xffffFFFF || ssize.height > 0xffffFFFF) && // Restrict image size since internal index evaluation
+                                                                       // is performed with u32
+           isSupportedConfiguration();
+#else
+    (void)ssize;
+    return isSupportedConfiguration();
+#endif
+}
+
+bool isWarpAffineLinearSupported(const Size2D &ssize)
+{
+#if SIZE_MAX > UINT32_MAX
+    return !(ssize.width > 0xffffFFFF || ssize.height > 0xffffFFFF) && // Restrict image size since internal index evaluation
+                                                                       // is performed with u32
+           isSupportedConfiguration();
+#else
+    (void)ssize;
+    return isSupportedConfiguration();
+#endif
+}
+
+void warpAffineNearestNeighbor(const Size2D &ssize, const Size2D &dsize,
+                               const u8 * srcBase, ptrdiff_t srcStride,
+                               const f32 * m,
+                               u8 * dstBase, ptrdiff_t dstStride,
+                               BORDER_MODE borderMode, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isWarpAffineNearestNeighborSupported(ssize));
+#ifdef CAROTENE_NEON
+    using namespace internal;
+
+    s32 _map[BLOCK_SIZE * BLOCK_SIZE + 16];
+    s32 * map = alignPtr(_map, 16);
+
+    int32x4_t v_width4 = vdupq_n_s32(ssize.width - 1), v_height4 = vdupq_n_s32(ssize.height - 1);
+    int32x4_t v_step4 = vdupq_n_s32(srcStride);
+    float32x4_t v_4 = vdupq_n_f32(4.0f);
+
+    float32x4_t v_m0 = vdupq_n_f32(m[0]);
+    float32x4_t v_m1 = vdupq_n_f32(m[1]);
+    float32x4_t v_m2 = vdupq_n_f32(m[2]);
+    float32x4_t v_m3 = vdupq_n_f32(m[3]);
+    float32x4_t v_m4 = vdupq_n_f32(m[4]);
+    float32x4_t v_m5 = vdupq_n_f32(m[5]);
+
+    if (borderMode == BORDER_MODE_REPLICATE)
+    {
+        int32x4_t v_zero4 = vdupq_n_s32(0);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(&map[0], blockWidth * sizeof(s32), y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_);
+                    float32x4_t v_yx = vmlaq_f32(v_m4, v_m2, v_y), v_yy = vmlaq_f32(v_m5, v_m3, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+
+                        int32x4_t v_src_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vcvtq_s32_f32(v_src_xf)));
+                        int32x4_t v_src_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vcvtq_s32_f32(v_src_yf)));
+                        int32x4_t v_src_index = vmlaq_s32(v_src_x, v_src_y, v_step4);
+                        vst1q_s32(map_row + x, v_src_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[2] * y_ + m[4], yy = m[3] * y_ + m[5];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 src_x_f = m[0] * x_ + yx;
+                        f32 src_y_f = m[1] * x_ + yy;
+                        s32 src_x = floorf(src_x_f), src_y = floorf(src_y_f);
+
+                        src_x = std::max(0, std::min<s32>(ssize.width - 1, src_x));
+                        src_y = std::max(0, std::min<s32>(ssize.height - 1, src_y));
+                        map_row[x] = src_y * srcStride + src_x;
+                    }
+                }
+
+                // make remap
+                remapNearestNeighborReplicate(Size2D(blockWidth, blockHeight), srcBase, &map[0],
+                                                        getRowPtr(dstBase, dstStride, i) + j, dstStride);
+            }
+        }
+    }
+    else if (borderMode == BORDER_MODE_CONSTANT)
+    {
+        int32x4_t v_m1_4 = vdupq_n_s32(-1);
+        float32x4_t v_zero4 = vdupq_n_f32(0.0f);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(&map[0], blockWidth * sizeof(s32), y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_);
+                    float32x4_t v_yx = vmlaq_f32(v_m4, v_m2, v_y), v_yy = vmlaq_f32(v_m5, v_m3, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+
+                        int32x4_t v_src_x = vcvtq_s32_f32(v_src_xf);
+                        int32x4_t v_src_y = vcvtq_s32_f32(v_src_yf);
+                        uint32x4_t v_mask = vandq_u32(vandq_u32(vcgeq_f32(v_src_xf, v_zero4), vcleq_s32(v_src_x, v_width4)),
+                                                      vandq_u32(vcgeq_f32(v_src_yf, v_zero4), vcleq_s32(v_src_y, v_height4)));
+                        int32x4_t v_src_index = vbslq_s32(v_mask, vmlaq_s32(v_src_x, v_src_y, v_step4), v_m1_4);
+                        vst1q_s32(map_row + x, v_src_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[2] * y_ + m[4], yy = m[3] * y_ + m[5];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 src_x_f = m[0] * x_ + yx;
+                        f32 src_y_f = m[1] * x_ + yy;
+                        s32 src_x = floorf(src_x_f), src_y = floorf(src_y_f);
+
+                        map_row[x] = (src_x >= 0) && (src_x < (s32)ssize.width) &&
+                                     (src_y >= 0) && (src_y < (s32)ssize.height) ? src_y * srcStride + src_x : -1;
+                    }
+                }
+
+                // make remap
+                remapNearestNeighborConst(Size2D(blockWidth, blockHeight), srcBase, &map[0],
+                                                    getRowPtr(dstBase, dstStride, i) + j, dstStride, borderValue);
+            }
+        }
+    }
+#else
+    (void)ssize;
+    (void)dsize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)m;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderMode;
+    (void)borderValue;
+#endif
+}
+
+void warpAffineLinear(const Size2D &ssize, const Size2D &dsize,
+                      const u8 * srcBase, ptrdiff_t srcStride,
+                      const f32 * m,
+                      u8 * dstBase, ptrdiff_t dstStride,
+                      BORDER_MODE borderMode, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isWarpAffineLinearSupported(ssize));
+#ifdef CAROTENE_NEON
+    using namespace internal;
+
+    s32 _map[((BLOCK_SIZE * BLOCK_SIZE) << 2) + 16];
+    f32 _coeffs[((BLOCK_SIZE * BLOCK_SIZE) << 1) + 16];
+    s32 * map = alignPtr(_map, 16);
+    f32 * coeffs = alignPtr(_coeffs, 16);
+
+    int32x4_t v_width4 = vdupq_n_s32(ssize.width - 1), v_height4 = vdupq_n_s32(ssize.height - 1);
+    int32x4_t v_step4 = vdupq_n_s32(srcStride), v_1 = vdupq_n_s32(1);
+    float32x4_t v_zero4f = vdupq_n_f32(0.0f), v_one4f = vdupq_n_f32(1.0f);
+
+    float32x4_t v_m0 = vdupq_n_f32(m[0]);
+    float32x4_t v_m1 = vdupq_n_f32(m[1]);
+    float32x4_t v_m2 = vdupq_n_f32(m[2]);
+    float32x4_t v_m3 = vdupq_n_f32(m[3]);
+    float32x4_t v_m4 = vdupq_n_f32(m[4]);
+    float32x4_t v_m5 = vdupq_n_f32(m[5]);
+
+    if (borderMode == BORDER_MODE_REPLICATE)
+    {
+        int32x4_t v_zero4 = vdupq_n_s32(0);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(map, blockWidth * sizeof(s32) * 4, y);
+                    f32 * coeff_row = getRowPtr(coeffs, blockWidth * sizeof(f32) * 2, y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_), v_4 = vdupq_n_f32(4.0f);
+                    float32x4_t v_yx = vmlaq_f32(v_m4, v_m2, v_y), v_yy = vmlaq_f32(v_m5, v_m3, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+
+                        int32x4_t v_src_x = vcvtq_s32_f32(v_src_xf);
+                        int32x4_t v_src_y = vcvtq_s32_f32(v_src_yf);
+
+                        float32x4x2_t v_coeff;
+                        v_coeff.val[0] = vsubq_f32(v_src_xf, vcvtq_f32_s32(v_src_x));
+                        v_coeff.val[1] = vsubq_f32(v_src_yf, vcvtq_f32_s32(v_src_y));
+                        uint32x4_t v_maskx = vcltq_f32(v_coeff.val[0], v_zero4f);
+                        uint32x4_t v_masky = vcltq_f32(v_coeff.val[1], v_zero4f);
+                        v_coeff.val[0] = vbslq_f32(v_maskx, vaddq_f32(v_one4f, v_coeff.val[0]), v_coeff.val[0]);
+                        v_coeff.val[1] = vbslq_f32(v_masky, vaddq_f32(v_one4f, v_coeff.val[1]), v_coeff.val[1]);
+                        v_src_x = vbslq_s32(v_maskx, vsubq_s32(v_src_x, v_1), v_src_x);
+                        v_src_y = vbslq_s32(v_masky, vsubq_s32(v_src_y, v_1), v_src_y);
+
+                        int32x4_t v_dst0_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, v_src_x));
+                        int32x4_t v_dst0_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, v_src_y));
+                        int32x4_t v_dst1_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vaddq_s32(v_1, v_src_x)));
+                        int32x4_t v_dst1_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vaddq_s32(v_1, v_src_y)));
+
+                        int32x4x4_t v_dst_index;
+                        v_dst_index.val[0] = vmlaq_s32(v_dst0_x, v_dst0_y, v_step4);
+                        v_dst_index.val[1] = vmlaq_s32(v_dst1_x, v_dst0_y, v_step4);
+                        v_dst_index.val[2] = vmlaq_s32(v_dst0_x, v_dst1_y, v_step4);
+                        v_dst_index.val[3] = vmlaq_s32(v_dst1_x, v_dst1_y, v_step4);
+
+                        vst2q_f32(coeff_row + (x << 1), v_coeff);
+                        vst4q_s32(map_row + (x << 2), v_dst_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[2] * y_ + m[4], yy = m[3] * y_ + m[5];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 src_x_f = m[0] * x_ + yx;
+                        f32 src_y_f = m[1] * x_ + yy;
+
+                        s32 src0_x = (s32)floorf(src_x_f);
+                        s32 src0_y = (s32)floorf(src_y_f);
+
+                        coeff_row[(x << 1) + 0] = src_x_f - src0_x;
+                        coeff_row[(x << 1) + 1] = src_y_f - src0_y;
+
+                        s32 src1_y = std::max(0, std::min<s32>(ssize.height - 1, src0_y + 1));
+                        src0_y = std::max(0, std::min<s32>(ssize.height - 1, src0_y));
+                        s32 src1_x = std::max(0, std::min<s32>(ssize.width - 1, src0_x + 1));
+                        src0_x = std::max(0, std::min<s32>(ssize.width - 1, src0_x));
+
+                        map_row[(x << 2) + 0] = src0_y * srcStride + src0_x;
+                        map_row[(x << 2) + 1] = src0_y * srcStride + src1_x;
+                        map_row[(x << 2) + 2] = src1_y * srcStride + src0_x;
+                        map_row[(x << 2) + 3] = src1_y * srcStride + src1_x;
+                    }
+                }
+
+                remapLinearReplicate(Size2D(blockWidth, blockHeight),
+                                     srcBase, &map[0], &coeffs[0],
+                                     getRowPtr(dstBase, dstStride, i) + j, dstStride);
+            }
+        }
+    }
+    else if (borderMode == BORDER_MODE_CONSTANT)
+    {
+        float32x4_t v_zero4 = vdupq_n_f32(0.0f);
+        int32x4_t v_m1_4 = vdupq_n_s32(-1);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(map, blockWidth * sizeof(s32) * 4, y);
+                    f32 * coeff_row = getRowPtr(coeffs, blockWidth * sizeof(f32) * 2, y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_), v_4 = vdupq_n_f32(4.0f);
+                    float32x4_t v_yx = vmlaq_f32(v_m4, v_m2, v_y), v_yy = vmlaq_f32(v_m5, v_m3, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+
+                        int32x4_t v_src_x0 = vcvtq_s32_f32(v_src_xf);
+                        int32x4_t v_src_y0 = vcvtq_s32_f32(v_src_yf);
+
+                        float32x4x2_t v_coeff;
+                        v_coeff.val[0] = vsubq_f32(v_src_xf, vcvtq_f32_s32(v_src_x0));
+                        v_coeff.val[1] = vsubq_f32(v_src_yf, vcvtq_f32_s32(v_src_y0));
+                        uint32x4_t v_maskx = vcltq_f32(v_coeff.val[0], v_zero4f);
+                        uint32x4_t v_masky = vcltq_f32(v_coeff.val[1], v_zero4f);
+                        v_coeff.val[0] = vbslq_f32(v_maskx, vaddq_f32(v_one4f, v_coeff.val[0]), v_coeff.val[0]);
+                        v_coeff.val[1] = vbslq_f32(v_masky, vaddq_f32(v_one4f, v_coeff.val[1]), v_coeff.val[1]);
+                        v_src_x0 = vbslq_s32(v_maskx, vsubq_s32(v_src_x0, v_1), v_src_x0);
+                        v_src_y0 = vbslq_s32(v_masky, vsubq_s32(v_src_y0, v_1), v_src_y0);
+
+                        int32x4_t v_src_x1 = vaddq_s32(v_src_x0, v_1);
+                        int32x4_t v_src_y1 = vaddq_s32(v_src_y0, v_1);
+
+                        int32x4x4_t v_dst_index;
+                        v_dst_index.val[0] = vmlaq_s32(v_src_x0, v_src_y0, v_step4);
+                        v_dst_index.val[1] = vmlaq_s32(v_src_x1, v_src_y0, v_step4);
+                        v_dst_index.val[2] = vmlaq_s32(v_src_x0, v_src_y1, v_step4);
+                        v_dst_index.val[3] = vmlaq_s32(v_src_x1, v_src_y1, v_step4);
+
+                        uint32x4_t v_mask_x0 = vandq_u32(vcgeq_f32(v_src_xf, v_zero4), vcleq_s32(v_src_x0, v_width4));
+                        uint32x4_t v_mask_x1 = vandq_u32(vcgeq_f32(vaddq_f32(v_src_xf, v_one4f), v_zero4), vcleq_s32(v_src_x1, v_width4));
+                        uint32x4_t v_mask_y0 = vandq_u32(vcgeq_f32(v_src_yf, v_zero4), vcleq_s32(v_src_y0, v_height4));
+                        uint32x4_t v_mask_y1 = vandq_u32(vcgeq_f32(vaddq_f32(v_src_yf, v_one4f), v_zero4), vcleq_s32(v_src_y1, v_height4));
+
+                        v_dst_index.val[0] = vbslq_s32(vandq_u32(v_mask_x0, v_mask_y0), v_dst_index.val[0], v_m1_4);
+                        v_dst_index.val[1] = vbslq_s32(vandq_u32(v_mask_x1, v_mask_y0), v_dst_index.val[1], v_m1_4);
+                        v_dst_index.val[2] = vbslq_s32(vandq_u32(v_mask_x0, v_mask_y1), v_dst_index.val[2], v_m1_4);
+                        v_dst_index.val[3] = vbslq_s32(vandq_u32(v_mask_x1, v_mask_y1), v_dst_index.val[3], v_m1_4);
+
+                        vst2q_f32(coeff_row + (x << 1), v_coeff);
+                        vst4q_s32(map_row + (x << 2), v_dst_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[2] * y_ + m[4], yy = m[3] * y_ + m[5];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 src_x_f = m[0] * x_ + yx;
+                        f32 src_y_f = m[1] * x_ + yy;
+
+                        s32 src0_x = (s32)floorf(src_x_f), src1_x = src0_x + 1;
+                        s32 src0_y = (s32)floorf(src_y_f), src1_y = src0_y + 1;
+
+                        coeff_row[(x << 1) + 0] = src_x_f - src0_x;
+                        coeff_row[(x << 1) + 1] = src_y_f - src0_y;
+
+                        map_row[(x << 2) + 0] = (src0_x >= 0) && (src0_x < (s32)ssize.width) &&
+                                                (src0_y >= 0) && (src0_y < (s32)ssize.height) ? src0_y * srcStride + src0_x : -1;
+                        map_row[(x << 2) + 1] = (src1_x >= 0) && (src1_x < (s32)ssize.width) &&
+                                                (src0_y >= 0) && (src0_y < (s32)ssize.height) ? src0_y * srcStride + src1_x : -1;
+                        map_row[(x << 2) + 2] = (src0_x >= 0) && (src0_x < (s32)ssize.width) &&
+                                                (src1_y >= 0) && (src1_y < (s32)ssize.height) ? src1_y * srcStride + src0_x : -1;
+                        map_row[(x << 2) + 3] = (src1_x >= 0) && (src1_x < (s32)ssize.width) &&
+                                                (src1_y >= 0) && (src1_y < (s32)ssize.height) ? src1_y * srcStride + src1_x : -1;
+                    }
+                }
+
+                remapLinearConst(Size2D(blockWidth, blockHeight),
+                                 srcBase, &map[0], &coeffs[0],
+                                 getRowPtr(dstBase, dstStride, i) + j, dstStride, borderValue);
+            }
+        }
+    }
+#else
+    (void)ssize;
+    (void)dsize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)m;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderMode;
+    (void)borderValue;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/carotene/src/warp_perspective.cpp

@@ -0,0 +1,464 @@
+/*
+ * By downloading, copying, installing or using the software you agree to this license.
+ * If you do not agree to this license, do not download, install,
+ * copy or use the software.
+ *
+ *
+ *                           License Agreement
+ *                For Open Source Computer Vision Library
+ *                        (3-clause BSD License)
+ *
+ * Copyright (C) 2015, NVIDIA Corporation, all rights reserved.
+ * Third party copyrights are property of their respective owners.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the names of the copyright holders nor the names of the contributors
+ *     may be used to endorse or promote products derived from this software
+ *     without specific prior written permission.
+ *
+ * This software is provided by the copyright holders and contributors "as is" and
+ * any express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are disclaimed.
+ * In no event shall copyright holders or contributors be liable for any direct,
+ * indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused
+ * and on any theory of liability, whether in contract, strict liability,
+ * or tort (including negligence or otherwise) arising in any way out of
+ * the use of this software, even if advised of the possibility of such damage.
+ */
+
+
+
+#include "remap.hpp"
+
+namespace CAROTENE_NS {
+
+bool isWarpPerspectiveNearestNeighborSupported(const Size2D &ssize)
+{
+#if SIZE_MAX > UINT32_MAX
+    return !(ssize.width > 0xffffFFFF || ssize.height > 0xffffFFFF) && // Restrict image size since internal index evaluation
+                                                                       // is performed with u32
+           isSupportedConfiguration();
+#else
+    (void)ssize;
+    return isSupportedConfiguration();
+#endif
+}
+
+bool isWarpPerspectiveLinearSupported(const Size2D &ssize)
+{
+#if SIZE_MAX > UINT32_MAX
+    return !(ssize.width > 0xffffFFFF || ssize.height > 0xffffFFFF) && // Restrict image size since internal index evaluation
+                                                                       // is performed with u32
+           isSupportedConfiguration();
+#else
+    (void)ssize;
+    return isSupportedConfiguration();
+#endif
+}
+
+void warpPerspectiveNearestNeighbor(const Size2D &ssize, const Size2D &dsize,
+                                    const u8 * srcBase, ptrdiff_t srcStride,
+                                    const f32 * m,
+                                    u8 * dstBase, ptrdiff_t dstStride,
+                                    BORDER_MODE borderMode, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isWarpPerspectiveNearestNeighborSupported(ssize));
+#ifdef CAROTENE_NEON
+    using namespace internal;
+
+    s32 _map[BLOCK_SIZE * BLOCK_SIZE + 16];
+    s32 * map = alignPtr(_map, 16);
+
+    int32x4_t v_width4 = vdupq_n_s32(ssize.width - 1), v_height4 = vdupq_n_s32(ssize.height - 1);
+    int32x4_t v_step4 = vdupq_n_s32(srcStride);
+    float32x4_t v_4 = vdupq_n_f32(4.0f);
+
+    float32x4_t v_m0 = vdupq_n_f32(m[0]);
+    float32x4_t v_m1 = vdupq_n_f32(m[1]);
+    float32x4_t v_m2 = vdupq_n_f32(m[2]);
+    float32x4_t v_m3 = vdupq_n_f32(m[3]);
+    float32x4_t v_m4 = vdupq_n_f32(m[4]);
+    float32x4_t v_m5 = vdupq_n_f32(m[5]);
+    float32x4_t v_m6 = vdupq_n_f32(m[6]);
+    float32x4_t v_m7 = vdupq_n_f32(m[7]);
+    float32x4_t v_m8 = vdupq_n_f32(m[8]);
+
+    if (borderMode == BORDER_MODE_REPLICATE)
+    {
+        int32x4_t v_zero4 = vdupq_n_s32(0);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(&map[0], blockWidth * sizeof(s32), y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_);
+                    float32x4_t v_yx = vmlaq_f32(v_m6, v_m3, v_y), v_yy = vmlaq_f32(v_m7, v_m4, v_y),
+                        v_yw = vmlaq_f32(v_m8, v_m5, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+                        float32x4_t v_wf = vrecpq_f32(vmlaq_f32(v_yw, v_m2, v_x));
+                        v_src_xf = vmulq_f32(v_wf, v_src_xf);
+                        v_src_yf = vmulq_f32(v_wf, v_src_yf);
+
+                        int32x4_t v_src_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vcvtq_s32_f32(v_src_xf)));
+                        int32x4_t v_src_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vcvtq_s32_f32(v_src_yf)));
+                        int32x4_t v_src_index = vmlaq_s32(v_src_x, v_src_y, v_step4);
+                        vst1q_s32(map_row + x, v_src_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[3] * y_ + m[6], yy = m[4] * y_ + m[7], yw = m[5] * y_ + m[8];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 w_f = 1.0f / (m[2] * x_ + yw);
+                        f32 src_x_f = (m[0] * x_ + yx) * w_f;
+                        f32 src_y_f = (m[1] * x_ + yy) * w_f;
+                        s32 src_x = floorf(src_x_f), src_y = floorf(src_y_f);
+
+                        src_x = std::max(0, std::min<s32>(ssize.width - 1, src_x));
+                        src_y = std::max(0, std::min<s32>(ssize.height - 1, src_y));
+                        map_row[x] = src_y * srcStride + src_x;
+                    }
+                }
+
+                // make remap
+                remapNearestNeighborReplicate(Size2D(blockWidth, blockHeight), srcBase, &map[0],
+                                              getRowPtr(dstBase, dstStride, i) + j, dstStride);
+            }
+        }
+    }
+    else if (borderMode == BORDER_MODE_CONSTANT)
+    {
+        int32x4_t v_m1_4 = vdupq_n_s32(-1);
+        float32x4_t v_zero4 = vdupq_n_f32(0.0f);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(&map[0], blockWidth * sizeof(s32), y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_);
+                    float32x4_t v_yx = vmlaq_f32(v_m6, v_m3, v_y), v_yy = vmlaq_f32(v_m7, v_m4, v_y),
+                        v_yw = vmlaq_f32(v_m8, v_m5, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+                        float32x4_t v_wf = vrecpq_f32(vmlaq_f32(v_yw, v_m2, v_x));
+                        v_src_xf = vmulq_f32(v_wf, v_src_xf);
+                        v_src_yf = vmulq_f32(v_wf, v_src_yf);
+
+                        int32x4_t v_src_x = vcvtq_s32_f32(v_src_xf);
+                        int32x4_t v_src_y = vcvtq_s32_f32(v_src_yf);
+                        uint32x4_t v_mask = vandq_u32(vandq_u32(vcgeq_f32(v_src_xf, v_zero4), vcleq_s32(v_src_x, v_width4)),
+                                                      vandq_u32(vcgeq_f32(v_src_yf, v_zero4), vcleq_s32(v_src_y, v_height4)));
+                        int32x4_t v_src_index = vbslq_s32(v_mask, vmlaq_s32(v_src_x, v_src_y, v_step4), v_m1_4);
+                        vst1q_s32(map_row + x, v_src_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[3] * y_ + m[6], yy = m[4] * y_ + m[7], yw = m[5] * y_ + m[8];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 w_f = 1.0f / (m[2] * x_ + yw);
+                        f32 src_x_f = (m[0] * x_ + yx) * w_f;
+                        f32 src_y_f = (m[1] * x_ + yy) * w_f;
+                        s32 src_x = floorf(src_x_f), src_y = floorf(src_y_f);
+
+                        map_row[x] = (src_x >= 0) && (src_x < (s32)ssize.width) &&
+                                     (src_y >= 0) && (src_y < (s32)ssize.height) ? src_y * srcStride + src_x : -1;
+                    }
+                }
+
+                // make remap
+                remapNearestNeighborConst(Size2D(blockWidth, blockHeight), srcBase, &map[0],
+                                          getRowPtr(dstBase, dstStride, i) + j, dstStride, borderValue);
+            }
+        }
+    }
+#else
+    (void)ssize;
+    (void)dsize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)m;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderMode;
+    (void)borderValue;
+#endif
+}
+
+void warpPerspectiveLinear(const Size2D &ssize, const Size2D &dsize,
+                           const u8 * srcBase, ptrdiff_t srcStride,
+                           const f32 * m,
+                           u8 * dstBase, ptrdiff_t dstStride,
+                           BORDER_MODE borderMode, u8 borderValue)
+{
+    internal::assertSupportedConfiguration(isWarpPerspectiveLinearSupported(ssize));
+#ifdef CAROTENE_NEON
+    using namespace internal;
+
+    s32 _map[((BLOCK_SIZE * BLOCK_SIZE) << 2) + 16];
+    f32 _coeffs[((BLOCK_SIZE * BLOCK_SIZE) << 1) + 16];
+    s32 * map = alignPtr(_map, 16);
+    f32 * coeffs = alignPtr(_coeffs, 16);
+
+    int32x4_t v_width4 = vdupq_n_s32(ssize.width - 1), v_height4 = vdupq_n_s32(ssize.height - 1);
+    int32x4_t v_step4 = vdupq_n_s32(srcStride), v_1 = vdupq_n_s32(1);
+    float32x4_t v_zero4f = vdupq_n_f32(0.0f), v_one4f = vdupq_n_f32(1.0f);
+
+    float32x4_t v_4 = vdupq_n_f32(4.0f);
+
+    float32x4_t v_m0 = vdupq_n_f32(m[0]);
+    float32x4_t v_m1 = vdupq_n_f32(m[1]);
+    float32x4_t v_m2 = vdupq_n_f32(m[2]);
+    float32x4_t v_m3 = vdupq_n_f32(m[3]);
+    float32x4_t v_m4 = vdupq_n_f32(m[4]);
+    float32x4_t v_m5 = vdupq_n_f32(m[5]);
+    float32x4_t v_m6 = vdupq_n_f32(m[6]);
+    float32x4_t v_m7 = vdupq_n_f32(m[7]);
+    float32x4_t v_m8 = vdupq_n_f32(m[8]);
+
+    if (borderMode == BORDER_MODE_REPLICATE)
+    {
+        int32x4_t v_zero4 = vdupq_n_s32(0);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(map, blockWidth * sizeof(s32) * 4, y);
+                    f32 * coeff_row = getRowPtr(coeffs, blockWidth * sizeof(f32) * 2, y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_);
+                    float32x4_t v_yx = vmlaq_f32(v_m6, v_m3, v_y), v_yy = vmlaq_f32(v_m7, v_m4, v_y),
+                        v_yw = vmlaq_f32(v_m8, v_m5, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+                        float32x4_t v_wf = vrecpq_f32(vmlaq_f32(v_yw, v_m2, v_x));
+                        v_src_xf = vmulq_f32(v_wf, v_src_xf);
+                        v_src_yf = vmulq_f32(v_wf, v_src_yf);
+
+                        int32x4_t v_src_x = vcvtq_s32_f32(v_src_xf);
+                        int32x4_t v_src_y = vcvtq_s32_f32(v_src_yf);
+
+                        float32x4x2_t v_coeff;
+                        v_coeff.val[0] = vsubq_f32(v_src_xf, vcvtq_f32_s32(v_src_x));
+                        v_coeff.val[1] = vsubq_f32(v_src_yf, vcvtq_f32_s32(v_src_y));
+                        uint32x4_t v_maskx = vcltq_f32(v_coeff.val[0], v_zero4f);
+                        uint32x4_t v_masky = vcltq_f32(v_coeff.val[1], v_zero4f);
+                        v_coeff.val[0] = vbslq_f32(v_maskx, vaddq_f32(v_one4f, v_coeff.val[0]), v_coeff.val[0]);
+                        v_coeff.val[1] = vbslq_f32(v_masky, vaddq_f32(v_one4f, v_coeff.val[1]), v_coeff.val[1]);
+                        v_src_x = vbslq_s32(v_maskx, vsubq_s32(v_src_x, v_1), v_src_x);
+                        v_src_y = vbslq_s32(v_masky, vsubq_s32(v_src_y, v_1), v_src_y);
+
+                        int32x4_t v_dst0_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, v_src_x));
+                        int32x4_t v_dst0_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, v_src_y));
+                        int32x4_t v_dst1_x = vmaxq_s32(v_zero4, vminq_s32(v_width4, vaddq_s32(v_1, v_src_x)));
+                        int32x4_t v_dst1_y = vmaxq_s32(v_zero4, vminq_s32(v_height4, vaddq_s32(v_1, v_src_y)));
+
+                        int32x4x4_t v_dst_index;
+                        v_dst_index.val[0] = vmlaq_s32(v_dst0_x, v_dst0_y, v_step4);
+                        v_dst_index.val[1] = vmlaq_s32(v_dst1_x, v_dst0_y, v_step4);
+                        v_dst_index.val[2] = vmlaq_s32(v_dst0_x, v_dst1_y, v_step4);
+                        v_dst_index.val[3] = vmlaq_s32(v_dst1_x, v_dst1_y, v_step4);
+
+                        vst2q_f32(coeff_row + (x << 1), v_coeff);
+                        vst4q_s32(map_row + (x << 2), v_dst_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[3] * y_ + m[6], yy = m[4] * y_ + m[7], yw = m[5] * y_ + m[8];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 w_f = 1.0f / (m[2] * x_ + yw);
+                        f32 src_x_f = (m[0] * x_ + yx) * w_f;
+                        f32 src_y_f = (m[1] * x_ + yy) * w_f;
+
+                        s32 src0_x = (s32)floorf(src_x_f);
+                        s32 src0_y = (s32)floorf(src_y_f);
+
+                        coeff_row[(x << 1) + 0] = src_x_f - src0_x;
+                        coeff_row[(x << 1) + 1] = src_y_f - src0_y;
+
+                        s32 src1_y = std::max(0, std::min<s32>(ssize.height - 1, src0_y + 1));
+                        src0_y = std::max(0, std::min<s32>(ssize.height - 1, src0_y));
+                        s32 src1_x = std::max(0, std::min<s32>(ssize.width - 1, src0_x + 1));
+                        src0_x = std::max(0, std::min<s32>(ssize.width - 1, src0_x));
+
+                        map_row[(x << 2) + 0] = src0_y * srcStride + src0_x;
+                        map_row[(x << 2) + 1] = src0_y * srcStride + src1_x;
+                        map_row[(x << 2) + 2] = src1_y * srcStride + src0_x;
+                        map_row[(x << 2) + 3] = src1_y * srcStride + src1_x;
+                    }
+                }
+
+                remapLinearReplicate(Size2D(blockWidth, blockHeight),
+                                     srcBase, &map[0], &coeffs[0],
+                                     getRowPtr(dstBase, dstStride, i) + j, dstStride);
+            }
+        }
+    }
+    else if (borderMode == BORDER_MODE_CONSTANT)
+    {
+        float32x4_t v_zero4 = vdupq_n_f32(0.0f);
+        int32x4_t v_m1_4 = vdupq_n_s32(-1);
+
+        for (size_t i = 0; i < dsize.height; i += BLOCK_SIZE)
+        {
+            size_t blockHeight = std::min<size_t>(BLOCK_SIZE, dsize.height - i);
+            for (size_t j = 0; j < dsize.width; j += BLOCK_SIZE)
+            {
+                size_t blockWidth = std::min<size_t>(BLOCK_SIZE, dsize.width - j);
+
+                // compute table
+                for (size_t y = 0; y < blockHeight; ++y)
+                {
+                    s32 * map_row = getRowPtr(map, blockWidth * sizeof(s32) * 4, y);
+                    f32 * coeff_row = getRowPtr(coeffs, blockWidth * sizeof(f32) * 2, y);
+
+                    size_t x = 0, y_ = y + i;
+                    f32 indeces[4] = { j + 0.0f, j + 1.0f, j + 2.0f, j + 3.0f };
+                    float32x4_t v_x = vld1q_f32(indeces), v_y = vdupq_n_f32(y_);
+                    float32x4_t v_yx = vmlaq_f32(v_m6, v_m3, v_y), v_yy = vmlaq_f32(v_m7, v_m4, v_y),
+                        v_yw = vmlaq_f32(v_m8, v_m5, v_y);
+
+                    for ( ; x + 4 <= blockWidth; x += 4)
+                    {
+                        float32x4_t v_src_xf = vmlaq_f32(v_yx, v_m0, v_x);
+                        float32x4_t v_src_yf = vmlaq_f32(v_yy, v_m1, v_x);
+                        float32x4_t v_wf = vrecpq_f32(vmlaq_f32(v_yw, v_m2, v_x));
+                        v_src_xf = vmulq_f32(v_wf, v_src_xf);
+                        v_src_yf = vmulq_f32(v_wf, v_src_yf);
+
+                        int32x4_t v_src_x0 = vcvtq_s32_f32(v_src_xf);
+                        int32x4_t v_src_y0 = vcvtq_s32_f32(v_src_yf);
+
+                        float32x4x2_t v_coeff;
+                        v_coeff.val[0] = vsubq_f32(v_src_xf, vcvtq_f32_s32(v_src_x0));
+                        v_coeff.val[1] = vsubq_f32(v_src_yf, vcvtq_f32_s32(v_src_y0));
+                        uint32x4_t v_maskx = vcltq_f32(v_coeff.val[0], v_zero4f);
+                        uint32x4_t v_masky = vcltq_f32(v_coeff.val[1], v_zero4f);
+                        v_coeff.val[0] = vbslq_f32(v_maskx, vaddq_f32(v_one4f, v_coeff.val[0]), v_coeff.val[0]);
+                        v_coeff.val[1] = vbslq_f32(v_masky, vaddq_f32(v_one4f, v_coeff.val[1]), v_coeff.val[1]);
+                        v_src_x0 = vbslq_s32(v_maskx, vsubq_s32(v_src_x0, v_1), v_src_x0);
+                        v_src_y0 = vbslq_s32(v_masky, vsubq_s32(v_src_y0, v_1), v_src_y0);
+
+                        int32x4_t v_src_x1 = vaddq_s32(v_src_x0, v_1);
+                        int32x4_t v_src_y1 = vaddq_s32(v_src_y0, v_1);
+
+                        int32x4x4_t v_dst_index;
+                        v_dst_index.val[0] = vmlaq_s32(v_src_x0, v_src_y0, v_step4);
+                        v_dst_index.val[1] = vmlaq_s32(v_src_x1, v_src_y0, v_step4);
+                        v_dst_index.val[2] = vmlaq_s32(v_src_x0, v_src_y1, v_step4);
+                        v_dst_index.val[3] = vmlaq_s32(v_src_x1, v_src_y1, v_step4);
+
+                        uint32x4_t v_mask_x0 = vandq_u32(vcgeq_f32(v_src_xf, v_zero4), vcleq_s32(v_src_x0, v_width4));
+                        uint32x4_t v_mask_x1 = vandq_u32(vcgeq_f32(vaddq_f32(v_src_xf, v_one4f), v_zero4), vcleq_s32(v_src_x1, v_width4));
+                        uint32x4_t v_mask_y0 = vandq_u32(vcgeq_f32(v_src_yf, v_zero4), vcleq_s32(v_src_y0, v_height4));
+                        uint32x4_t v_mask_y1 = vandq_u32(vcgeq_f32(vaddq_f32(v_src_yf, v_one4f), v_zero4), vcleq_s32(v_src_y1, v_height4));
+
+                        v_dst_index.val[0] = vbslq_s32(vandq_u32(v_mask_x0, v_mask_y0), v_dst_index.val[0], v_m1_4);
+                        v_dst_index.val[1] = vbslq_s32(vandq_u32(v_mask_x1, v_mask_y0), v_dst_index.val[1], v_m1_4);
+                        v_dst_index.val[2] = vbslq_s32(vandq_u32(v_mask_x0, v_mask_y1), v_dst_index.val[2], v_m1_4);
+                        v_dst_index.val[3] = vbslq_s32(vandq_u32(v_mask_x1, v_mask_y1), v_dst_index.val[3], v_m1_4);
+
+                        vst2q_f32(coeff_row + (x << 1), v_coeff);
+                        vst4q_s32(map_row + (x << 2), v_dst_index);
+
+                        v_x = vaddq_f32(v_x, v_4);
+                    }
+
+                    f32 yx = m[3] * y_ + m[6], yy = m[4] * y_ + m[7], yw = m[5] * y_ + m[8];
+                    for (ptrdiff_t x_ = x + j; x < blockWidth; ++x, ++x_)
+                    {
+                        f32 w_f = 1.0f / (m[2] * x_ + yw);
+                        f32 src_x_f = (m[0] * x_ + yx) * w_f;
+                        f32 src_y_f = (m[1] * x_ + yy) * w_f;
+
+                        s32 src0_x = (s32)floorf(src_x_f), src1_x = src0_x + 1;
+                        s32 src0_y = (s32)floorf(src_y_f), src1_y = src0_y + 1;
+
+                        coeff_row[(x << 1) + 0] = src_x_f - src0_x;
+                        coeff_row[(x << 1) + 1] = src_y_f - src0_y;
+
+                        map_row[(x << 2) + 0] = (src0_x >= 0) && (src0_x < (s32)ssize.width) &&
+                                                (src0_y >= 0) && (src0_y < (s32)ssize.height) ? src0_y * srcStride + src0_x : -1;
+                        map_row[(x << 2) + 1] = (src1_x >= 0) && (src1_x < (s32)ssize.width) &&
+                                                (src0_y >= 0) && (src0_y < (s32)ssize.height) ? src0_y * srcStride + src1_x : -1;
+                        map_row[(x << 2) + 2] = (src0_x >= 0) && (src0_x < (s32)ssize.width) &&
+                                                (src1_y >= 0) && (src1_y < (s32)ssize.height) ? src1_y * srcStride + src0_x : -1;
+                        map_row[(x << 2) + 3] = (src1_x >= 0) && (src1_x < (s32)ssize.width) &&
+                                                (src1_y >= 0) && (src1_y < (s32)ssize.height) ? src1_y * srcStride + src1_x : -1;
+                    }
+                }
+
+                remapLinearConst(Size2D(blockWidth, blockHeight),
+                                 srcBase, &map[0], &coeffs[0],
+                                 getRowPtr(dstBase, dstStride, i) + j, dstStride, borderValue);
+            }
+        }
+    }
+#else
+    (void)ssize;
+    (void)dsize;
+    (void)srcBase;
+    (void)srcStride;
+    (void)m;
+    (void)dstBase;
+    (void)dstStride;
+    (void)borderMode;
+    (void)borderValue;
+#endif
+}
+
+} // namespace CAROTENE_NS

libs/opencv/3rdparty/cpufeatures/CMakeLists.txt

@@ -0,0 +1,35 @@
+if(NOT ANDROID)
+  message("cpufeatures is ANDROID project")
+endif()
+
+ocv_update(OPENCV_CPUFEATURES_TARGET_NAME libcpufeatures)
+
+set(CPUFEATURES_ROOT "${CMAKE_CURRENT_SOURCE_DIR}" CACHE PATH "Android cpufeatures project sources (for example, <android-ndk>/sources/android/cpufeatures)")
+
+set(CPUFEATURES_INCLUDE_DIRS ${CPUFEATURES_ROOT} CACHE INTERNAL "")
+set(CPUFEATURES_LIBRARIES "${OPENCV_CPUFEATURES_TARGET_NAME}" CACHE INTERNAL "")
+
+if(NOT DEFINED CPUFEATURES_SOURCES)
+  set(CPUFEATURES_SOURCES ${CPUFEATURES_ROOT}/cpu-features.c ${CPUFEATURES_ROOT}/cpu-features.h)
+endif()
+
+include_directories(${CPUFEATURES_INCLUDE_DIRS})
+add_library(${OPENCV_CPUFEATURES_TARGET_NAME} STATIC ${OPENCV_3RDPARTY_EXCLUDE_FROM_ALL} ${CPUFEATURES_SOURCES})
+
+set_target_properties(${OPENCV_CPUFEATURES_TARGET_NAME}
+  PROPERTIES OUTPUT_NAME cpufeatures
+  DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
+  COMPILE_PDB_NAME cpufeatures
+  COMPILE_PDB_NAME_DEBUG "cpufeatures${OPENCV_DEBUG_POSTFIX}"
+  ARCHIVE_OUTPUT_DIRECTORY ${3P_LIBRARY_OUTPUT_PATH}
+)
+
+if(ENABLE_SOLUTION_FOLDERS)
+  set_target_properties(${OPENCV_CPUFEATURES_TARGET_NAME} PROPERTIES FOLDER "3rdparty")
+endif()
+
+if(NOT BUILD_SHARED_LIBS)
+  ocv_install_target(${OPENCV_CPUFEATURES_TARGET_NAME} EXPORT OpenCVModules ARCHIVE DESTINATION ${OPENCV_3P_LIB_INSTALL_PATH} COMPONENT dev OPTIONAL)
+endif()
+
+ocv_install_3rdparty_licenses(cpufeatures LICENSE README.md)

libs/opencv/3rdparty/cpufeatures/LICENSE

@@ -0,0 +1,13 @@
+Copyright (C) 2016 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

libs/opencv/3rdparty/cpufeatures/README.md

@@ -0,0 +1,4 @@
+The Android NDK provides a small library named cpufeatures that your app can use at runtime to detect the target device's CPU family and the optional features it supports.
+It is designed to work as-is on all official Android platform versions.
+
+https://developer.android.com/ndk/guides/cpu-features.html

libs/opencv/3rdparty/cpufeatures/cpu-features.h

@@ -0,0 +1,324 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef CPU_FEATURES_H
+#define CPU_FEATURES_H
+
+#include <sys/cdefs.h>
+#include <stdint.h>
+#include <string.h>
+
+__BEGIN_DECLS
+
+/* A list of valid values returned by android_getCpuFamily().
+ * They describe the CPU Architecture of the current process.
+ */
+typedef enum {
+    ANDROID_CPU_FAMILY_UNKNOWN = 0,
+    ANDROID_CPU_FAMILY_ARM,
+    ANDROID_CPU_FAMILY_X86,
+    ANDROID_CPU_FAMILY_MIPS,
+    ANDROID_CPU_FAMILY_ARM64,
+    ANDROID_CPU_FAMILY_X86_64,
+    ANDROID_CPU_FAMILY_MIPS64,
+
+    ANDROID_CPU_FAMILY_MAX  /* do not remove */
+
+} AndroidCpuFamily;
+
+/* Return the CPU family of the current process.
+ *
+ * Note that this matches the bitness of the current process. I.e. when
+ * running a 32-bit binary on a 64-bit capable CPU, this will return the
+ * 32-bit CPU family value.
+ */
+extern AndroidCpuFamily android_getCpuFamily(void);
+
+/* Return a bitmap describing a set of optional CPU features that are
+ * supported by the current device's CPU. The exact bit-flags returned
+ * depend on the value returned by android_getCpuFamily(). See the
+ * documentation for the ANDROID_CPU_*_FEATURE_* flags below for details.
+ */
+extern uint64_t android_getCpuFeatures(void);
+
+/* The list of feature flags for ANDROID_CPU_FAMILY_ARM that can be
+ * recognized by the library (see note below for 64-bit ARM). Value details
+ * are:
+ *
+ *   VFPv2:
+ *     CPU supports the VFPv2 instruction set. Many, but not all, ARMv6 CPUs
+ *     support these instructions. VFPv2 is a subset of VFPv3 so this will
+ *     be set whenever VFPv3 is set too.
+ *
+ *   ARMv7:
+ *     CPU supports the ARMv7-A basic instruction set.
+ *     This feature is mandated by the 'armeabi-v7a' ABI.
+ *
+ *   VFPv3:
+ *     CPU supports the VFPv3-D16 instruction set, providing hardware FPU
+ *     support for single and double precision floating point registers.
+ *     Note that only 16 FPU registers are available by default, unless
+ *     the D32 bit is set too. This feature is also mandated by the
+ *     'armeabi-v7a' ABI.
+ *
+ *   VFP_D32:
+ *     CPU VFP optional extension that provides 32 FPU registers,
+ *     instead of 16. Note that ARM mandates this feature is the 'NEON'
+ *     feature is implemented by the CPU.
+ *
+ *   NEON:
+ *     CPU FPU supports "ARM Advanced SIMD" instructions, also known as
+ *     NEON. Note that this mandates the VFP_D32 feature as well, per the
+ *     ARM Architecture specification.
+ *
+ *   VFP_FP16:
+ *     Half-width floating precision VFP extension. If set, the CPU
+ *     supports instructions to perform floating-point operations on
+ *     16-bit registers. This is part of the VFPv4 specification, but
+ *     not mandated by any Android ABI.
+ *
+ *   VFP_FMA:
+ *     Fused multiply-accumulate VFP instructions extension. Also part of
+ *     the VFPv4 specification, but not mandated by any Android ABI.
+ *
+ *   NEON_FMA:
+ *     Fused multiply-accumulate NEON instructions extension. Optional
+ *     extension from the VFPv4 specification, but not mandated by any
+ *     Android ABI.
+ *
+ *   IDIV_ARM:
+ *     Integer division available in ARM mode. Only available
+ *     on recent CPUs (e.g. Cortex-A15).
+ *
+ *   IDIV_THUMB2:
+ *     Integer division available in Thumb-2 mode. Only available
+ *     on recent CPUs (e.g. Cortex-A15).
+ *
+ *   iWMMXt:
+ *     Optional extension that adds MMX registers and operations to an
+ *     ARM CPU. This is only available on a few XScale-based CPU designs
+ *     sold by Marvell. Pretty rare in practice.
+ *
+ *   AES:
+ *     CPU supports AES instructions. These instructions are only
+ *     available for 32-bit applications running on ARMv8 CPU.
+ *
+ *   CRC32:
+ *     CPU supports CRC32 instructions. These instructions are only
+ *     available for 32-bit applications running on ARMv8 CPU.
+ *
+ *   SHA2:
+ *     CPU supports SHA2 instructions. These instructions are only
+ *     available for 32-bit applications running on ARMv8 CPU.
+ *
+ *   SHA1:
+ *     CPU supports SHA1 instructions. These instructions are only
+ *     available for 32-bit applications running on ARMv8 CPU.
+ *
+ *   PMULL:
+ *     CPU supports 64-bit PMULL and PMULL2 instructions. These
+ *     instructions are only available for 32-bit applications
+ *     running on ARMv8 CPU.
+ *
+ * If you want to tell the compiler to generate code that targets one of
+ * the feature set above, you should probably use one of the following
+ * flags (for more details, see technical note at the end of this file):
+ *
+ *   -mfpu=vfp
+ *   -mfpu=vfpv2
+ *     These are equivalent and tell GCC to use VFPv2 instructions for
+ *     floating-point operations. Use this if you want your code to
+ *     run on *some* ARMv6 devices, and any ARMv7-A device supported
+ *     by Android.
+ *
+ *     Generated code requires VFPv2 feature.
+ *
+ *   -mfpu=vfpv3-d16
+ *     Tell GCC to use VFPv3 instructions (using only 16 FPU registers).
+ *     This should be generic code that runs on any CPU that supports the
+ *     'armeabi-v7a' Android ABI. Note that no ARMv6 CPU supports this.
+ *
+ *     Generated code requires VFPv3 feature.
+ *
+ *   -mfpu=vfpv3
+ *     Tell GCC to use VFPv3 instructions with 32 FPU registers.
+ *     Generated code requires VFPv3|VFP_D32 features.
+ *
+ *   -mfpu=neon
+ *     Tell GCC to use VFPv3 instructions with 32 FPU registers, and
+ *     also support NEON intrinsics (see <arm_neon.h>).
+ *     Generated code requires VFPv3|VFP_D32|NEON features.
+ *
+ *   -mfpu=vfpv4-d16
+ *     Generated code requires VFPv3|VFP_FP16|VFP_FMA features.
+ *
+ *   -mfpu=vfpv4
+ *     Generated code requires VFPv3|VFP_FP16|VFP_FMA|VFP_D32 features.
+ *
+ *   -mfpu=neon-vfpv4
+ *     Generated code requires VFPv3|VFP_FP16|VFP_FMA|VFP_D32|NEON|NEON_FMA
+ *     features.
+ *
+ *   -mcpu=cortex-a7
+ *   -mcpu=cortex-a15
+ *     Generated code requires VFPv3|VFP_FP16|VFP_FMA|VFP_D32|
+ *                             NEON|NEON_FMA|IDIV_ARM|IDIV_THUMB2
+ *     This flag implies -mfpu=neon-vfpv4.
+ *
+ *   -mcpu=iwmmxt
+ *     Allows the use of iWMMXt instrinsics with GCC.
+ *
+ * IMPORTANT NOTE: These flags should only be tested when
+ * android_getCpuFamily() returns ANDROID_CPU_FAMILY_ARM, i.e. this is a
+ * 32-bit process.
+ *
+ * When running a 64-bit ARM process on an ARMv8 CPU,
+ * android_getCpuFeatures() will return a different set of bitflags
+ */
+enum {
+    ANDROID_CPU_ARM_FEATURE_ARMv7       = (1 << 0),
+    ANDROID_CPU_ARM_FEATURE_VFPv3       = (1 << 1),
+    ANDROID_CPU_ARM_FEATURE_NEON        = (1 << 2),
+    ANDROID_CPU_ARM_FEATURE_LDREX_STREX = (1 << 3),
+    ANDROID_CPU_ARM_FEATURE_VFPv2       = (1 << 4),
+    ANDROID_CPU_ARM_FEATURE_VFP_D32     = (1 << 5),
+    ANDROID_CPU_ARM_FEATURE_VFP_FP16    = (1 << 6),
+    ANDROID_CPU_ARM_FEATURE_VFP_FMA     = (1 << 7),
+    ANDROID_CPU_ARM_FEATURE_NEON_FMA    = (1 << 8),
+    ANDROID_CPU_ARM_FEATURE_IDIV_ARM    = (1 << 9),
+    ANDROID_CPU_ARM_FEATURE_IDIV_THUMB2 = (1 << 10),
+    ANDROID_CPU_ARM_FEATURE_iWMMXt      = (1 << 11),
+    ANDROID_CPU_ARM_FEATURE_AES         = (1 << 12),
+    ANDROID_CPU_ARM_FEATURE_PMULL       = (1 << 13),
+    ANDROID_CPU_ARM_FEATURE_SHA1        = (1 << 14),
+    ANDROID_CPU_ARM_FEATURE_SHA2        = (1 << 15),
+    ANDROID_CPU_ARM_FEATURE_CRC32       = (1 << 16),
+};
+
+/* The bit flags corresponding to the output of android_getCpuFeatures()
+ * when android_getCpuFamily() returns ANDROID_CPU_FAMILY_ARM64. Value details
+ * are:
+ *
+ *   FP:
+ *     CPU has Floating-point unit.
+ *
+ *   ASIMD:
+ *     CPU has Advanced SIMD unit.
+ *
+ *   AES:
+ *     CPU supports AES instructions.
+ *
+ *   CRC32:
+ *     CPU supports CRC32 instructions.
+ *
+ *   SHA2:
+ *     CPU supports SHA2 instructions.
+ *
+ *   SHA1:
+ *     CPU supports SHA1 instructions.
+ *
+ *   PMULL:
+ *     CPU supports 64-bit PMULL and PMULL2 instructions.
+ */
+enum {
+    ANDROID_CPU_ARM64_FEATURE_FP      = (1 << 0),
+    ANDROID_CPU_ARM64_FEATURE_ASIMD   = (1 << 1),
+    ANDROID_CPU_ARM64_FEATURE_AES     = (1 << 2),
+    ANDROID_CPU_ARM64_FEATURE_PMULL   = (1 << 3),
+    ANDROID_CPU_ARM64_FEATURE_SHA1    = (1 << 4),
+    ANDROID_CPU_ARM64_FEATURE_SHA2    = (1 << 5),
+    ANDROID_CPU_ARM64_FEATURE_CRC32   = (1 << 6),
+};
+
+/* The bit flags corresponding to the output of android_getCpuFeatures()
+ * when android_getCpuFamily() returns ANDROID_CPU_FAMILY_X86 or
+ * ANDROID_CPU_FAMILY_X86_64.
+ */
+enum {
+    ANDROID_CPU_X86_FEATURE_SSSE3  = (1 << 0),
+    ANDROID_CPU_X86_FEATURE_POPCNT = (1 << 1),
+    ANDROID_CPU_X86_FEATURE_MOVBE  = (1 << 2),
+    ANDROID_CPU_X86_FEATURE_SSE4_1 = (1 << 3),
+    ANDROID_CPU_X86_FEATURE_SSE4_2 = (1 << 4),
+    ANDROID_CPU_X86_FEATURE_AES_NI = (1 << 5),
+    ANDROID_CPU_X86_FEATURE_AVX =    (1 << 6),
+    ANDROID_CPU_X86_FEATURE_RDRAND = (1 << 7),
+    ANDROID_CPU_X86_FEATURE_AVX2 =   (1 << 8),
+    ANDROID_CPU_X86_FEATURE_SHA_NI = (1 << 9),
+};
+
+/* The bit flags corresponding to the output of android_getCpuFeatures()
+ * when android_getCpuFamily() returns ANDROID_CPU_FAMILY_MIPS
+ * or ANDROID_CPU_FAMILY_MIPS64.  Values are:
+ *
+ *   R6:
+ *     CPU executes MIPS Release 6 instructions natively, and
+ *     supports obsoleted R1..R5 instructions only via kernel traps.
+ *
+ *   MSA:
+ *     CPU supports Mips SIMD Architecture instructions.
+ */
+enum {
+    ANDROID_CPU_MIPS_FEATURE_R6    = (1 << 0),
+    ANDROID_CPU_MIPS_FEATURE_MSA   = (1 << 1),
+};
+
+
+/* Return the number of CPU cores detected on this device. */
+extern int android_getCpuCount(void);
+
+/* The following is used to force the CPU count and features
+ * mask in sandboxed processes. Under 4.1 and higher, these processes
+ * cannot access /proc, which is the only way to get information from
+ * the kernel about the current hardware (at least on ARM).
+ *
+ * It _must_ be called only once, and before any android_getCpuXXX
+ * function, any other case will fail.
+ *
+ * This function return 1 on success, and 0 on failure.
+ */
+extern int android_setCpu(int      cpu_count,
+                          uint64_t cpu_features);
+
+#ifdef __arm__
+/* Retrieve the ARM 32-bit CPUID value from the kernel.
+ * Note that this cannot work on sandboxed processes under 4.1 and
+ * higher, unless you called android_setCpuArm() before.
+ */
+extern uint32_t android_getCpuIdArm(void);
+
+/* An ARM-specific variant of android_setCpu() that also allows you
+ * to set the ARM CPUID field.
+ */
+extern int android_setCpuArm(int      cpu_count,
+                             uint64_t cpu_features,
+                             uint32_t cpu_id);
+#endif
+
+__END_DECLS
+
+#endif /* CPU_FEATURES_H */

libs/opencv/3rdparty/ffmpeg/.gitignore

@@ -0,0 +1,3 @@
+downloads/
+*.dll
+ffmpeg_version.cmake

libs/opencv/3rdparty/ffmpeg/ffmpeg-download.ps1.in

@@ -0,0 +1,79 @@
+$url = "https://raw.githubusercontent.com/opencv/opencv_3rdparty/@FFMPEG_BINARIES_COMMIT@/ffmpeg/opencv_videoio_ffmpeg_64.dll"
+$expected_md5 = "@FFMPEG_FILE_HASH_BIN64@"
+$output = "$PSScriptRoot\@OPENCV_BIN_INSTALL_PATH@\opencv_videoio_ffmpeg@OPENCV_DLLVERSION@_64.dll"
+
+Write-Output ("=" * 120)
+try {
+    Get-content -Path "$PSScriptRoot\@OPENCV_LICENSES_INSTALL_PATH@\ffmpeg-readme.txt" -ErrorAction 'Stop'
+} catch {
+    Write-Output "Refer to OpenCV FFmpeg wrapper readme notes about library usage / licensing details."
+}
+Write-Output ("=" * 120)
+Write-Output ""
+
+if(![System.IO.File]::Exists($output)) {
+    try {
+        [io.file]::OpenWrite($output).close()
+    } catch {
+        Write-Warning "Unable to write: $output"
+        if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
+            Write-Warning "Launching with 'Administrator' elevated privileges..."
+            Pause
+            Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs
+            exit
+        } else {
+            Write-Output "FATAL: Unable to write with elevated privileges: $output"
+            Pause
+            exit 1
+        }
+    }
+
+    try {
+        Write-Output ("Downloading: " + $output)
+        Import-Module BitsTransfer
+        $start_time = Get-Date
+        Start-BitsTransfer -Source $url -Destination $output -ErrorAction 'Stop'
+        Write-Output "Downloaded in $((Get-Date).Subtract($start_time).Seconds) seconds"
+    } catch {
+        $_ # Dump error
+        try {
+            Write-Output ("Downloading (second attempt): " + $output)
+            $start_time = Get-Date
+            Invoke-WebRequest -Uri $url -OutFile $output
+            Write-Output "Downloaded in $((Get-Date).Subtract($start_time).Seconds) seconds"
+        } catch {
+            Write-Output ("Can't download file: " + $output)
+            Write-Output ("URL: " + $url)
+            Write-Output "You need to download this file manually. Stop"
+            Pause
+            Exit
+        }
+    }
+} else {
+    Write-Output ("File exists: " + $output)
+    Write-Output ("Downloading is skipped. Remove this file and re-run this script to force downloading.")
+}
+
+if(![System.IO.File]::Exists($output)) {
+    Write-Output ("Destination file not found: " + $output)
+    Write-Output "Stop"
+    Pause
+    Exit
+}
+
+try {
+    $hash = Get-FileHash $output -Algorithm MD5 -ErrorAction 'Stop'
+
+    if($hash.Hash -eq $expected_md5) {
+        Write-Output "MD5 check passed"
+    } else {
+        Write-Output ("MD5     : " + $hash.Hash.toLower())
+        Write-Output ("Expected: " + $expected_md5)
+        Write-Output "MD5 hash mismatch"
+    }
+} catch {
+    $_ # Dump error
+    Write-Output "Can't check MD5 hash (requires PowerShell 4+)"
+}
+Pause
+Write-Output "Exit"