359 lines
11 KiB
C
359 lines
11 KiB
C
|
///////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// Copyright (c) 2007, Industrial Light & Magic, a division of Lucas
|
||
|
|
// Digital Ltd. LLC
|
||
|
|
//
|
||
|
|
// 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 Industrial Light & Magic 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.
|
||
|
|
//
|
||
|
|
///////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef INCLUDED_IMF_ACES_FILE_H
|
||
|
|
#define INCLUDED_IMF_ACES_FILE_H
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// ACES image file I/O.
|
||
|
|
//
|
||
|
|
// This header file declares two classes that directly support
|
||
|
|
// image file input and output according to the Academy Image
|
||
|
|
// Interchange Framework.
|
||
|
|
//
|
||
|
|
// The Academy Image Interchange file format is a subset of OpenEXR:
|
||
|
|
//
|
||
|
|
// - Images are stored as scanlines. Tiles are not allowed.
|
||
|
|
//
|
||
|
|
// - Images contain three color channels, either
|
||
|
|
// R, G, B (red, green, blue) or
|
||
|
|
// Y, RY, BY (luminance, sub-sampled chroma)
|
||
|
|
//
|
||
|
|
// - Images may optionally contain an alpha channel.
|
||
|
|
//
|
||
|
|
// - Only three compression types are allowed:
|
||
|
|
// - NO_COMPRESSION (file is not compressed)
|
||
|
|
// - PIZ_COMPRESSION (lossless)
|
||
|
|
// - B44A_COMPRESSION (lossy)
|
||
|
|
//
|
||
|
|
// - The "chromaticities" header attribute must specify
|
||
|
|
// the ACES RGB primaries and white point.
|
||
|
|
//
|
||
|
|
// class AcesOutputFile writes an OpenEXR file, enforcing the
|
||
|
|
// restrictions listed above. Pixel data supplied by application
|
||
|
|
// software must already be in the ACES RGB space.
|
||
|
|
//
|
||
|
|
// class AcesInputFile reads an OpenEXR file. Pixel data delivered
|
||
|
|
// to application software is guaranteed to be in the ACES RGB space.
|
||
|
|
// If the RGB space of the file is not the same as the ACES space,
|
||
|
|
// then the pixels are automatically converted: the pixels are
|
||
|
|
// converted to CIE XYZ, a color adaptation transform shifts the
|
||
|
|
// white point, and the result is converted to ACES RGB.
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#include "ImfHeader.h"
|
||
|
|
#include "ImfRgba.h"
|
||
|
|
#include "ImathVec.h"
|
||
|
|
#include "ImathBox.h"
|
||
|
|
#include "ImfThreading.h"
|
||
|
|
#include "ImfNamespace.h"
|
||
|
|
#include "ImfExport.h"
|
||
|
|
#include "ImfForward.h"
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// ACES red, green, blue and white-point chromaticities.
|
||
|
|
//
|
||
|
|
|
||
|
|
const Chromaticities & acesChromaticities ();
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// ACES output file.
|
||
|
|
//
|
||
|
|
|
||
|
|
class AcesOutputFile
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
//---------------------------------------------------
|
||
|
|
// Constructor -- header is constructed by the caller
|
||
|
|
//---------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
AcesOutputFile (const std::string &name,
|
||
|
|
const Header &header,
|
||
|
|
RgbaChannels rgbaChannels = WRITE_RGBA,
|
||
|
|
int numThreads = globalThreadCount());
|
||
|
|
|
||
|
|
|
||
|
|
//----------------------------------------------------
|
||
|
|
// Constructor -- header is constructed by the caller,
|
||
|
|
// file is opened by the caller, destructor will not
|
||
|
|
// automatically close the file.
|
||
|
|
//----------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
AcesOutputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::OStream &os,
|
||
|
|
const Header &header,
|
||
|
|
RgbaChannels rgbaChannels = WRITE_RGBA,
|
||
|
|
int numThreads = globalThreadCount());
|
||
|
|
|
||
|
|
|
||
|
|
//----------------------------------------------------------------
|
||
|
|
// Constructor -- header data are explicitly specified as function
|
||
|
|
// call arguments (empty dataWindow means "same as displayWindow")
|
||
|
|
//----------------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
AcesOutputFile (const std::string &name,
|
||
|
|
const IMATH_NAMESPACE::Box2i &displayWindow,
|
||
|
|
const IMATH_NAMESPACE::Box2i &dataWindow = IMATH_NAMESPACE::Box2i(),
|
||
|
|
RgbaChannels rgbaChannels = WRITE_RGBA,
|
||
|
|
float pixelAspectRatio = 1,
|
||
|
|
const IMATH_NAMESPACE::V2f screenWindowCenter = IMATH_NAMESPACE::V2f (0, 0),
|
||
|
|
float screenWindowWidth = 1,
|
||
|
|
LineOrder lineOrder = INCREASING_Y,
|
||
|
|
Compression compression = PIZ_COMPRESSION,
|
||
|
|
int numThreads = globalThreadCount());
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------
|
||
|
|
// Constructor -- like the previous one, but both
|
||
|
|
// the display window and the data window are
|
||
|
|
// Box2i (V2i (0, 0), V2i (width - 1, height -1))
|
||
|
|
//-----------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
AcesOutputFile (const std::string &name,
|
||
|
|
int width,
|
||
|
|
int height,
|
||
|
|
RgbaChannels rgbaChannels = WRITE_RGBA,
|
||
|
|
float pixelAspectRatio = 1,
|
||
|
|
const IMATH_NAMESPACE::V2f screenWindowCenter = IMATH_NAMESPACE::V2f (0, 0),
|
||
|
|
float screenWindowWidth = 1,
|
||
|
|
LineOrder lineOrder = INCREASING_Y,
|
||
|
|
Compression compression = PIZ_COMPRESSION,
|
||
|
|
int numThreads = globalThreadCount());
|
||
|
|
|
||
|
|
|
||
|
|
//-----------
|
||
|
|
// Destructor
|
||
|
|
//-----------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
virtual ~AcesOutputFile ();
|
||
|
|
|
||
|
|
|
||
|
|
//------------------------------------------------
|
||
|
|
// Define a frame buffer as the pixel data source:
|
||
|
|
// Pixel (x, y) is at address
|
||
|
|
//
|
||
|
|
// base + x * xStride + y * yStride
|
||
|
|
//
|
||
|
|
//------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void setFrameBuffer (const Rgba *base,
|
||
|
|
size_t xStride,
|
||
|
|
size_t yStride);
|
||
|
|
|
||
|
|
|
||
|
|
//-------------------------------------------------
|
||
|
|
// Write pixel data (see class Imf::OutputFile)
|
||
|
|
// The pixels are assumed to contain ACES RGB data.
|
||
|
|
//-------------------------------------------------
|
||
|
|
|
||
|
|
void writePixels (int numScanLines = 1);
|
||
|
|
int currentScanLine () const;
|
||
|
|
|
||
|
|
|
||
|
|
//--------------------------
|
||
|
|
// Access to the file header
|
||
|
|
//--------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
const Header & header () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const IMATH_NAMESPACE::Box2i & displayWindow () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const IMATH_NAMESPACE::Box2i & dataWindow () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
float pixelAspectRatio () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const IMATH_NAMESPACE::V2f screenWindowCenter () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
float screenWindowWidth () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
LineOrder lineOrder () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
Compression compression () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
RgbaChannels channels () const;
|
||
|
|
|
||
|
|
|
||
|
|
// --------------------------------------------------------------------
|
||
|
|
// Update the preview image (see Imf::OutputFile::updatePreviewImage())
|
||
|
|
// --------------------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void updatePreviewImage (const PreviewRgba[]);
|
||
|
|
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
AcesOutputFile (const AcesOutputFile &); // not implemented
|
||
|
|
AcesOutputFile & operator = (const AcesOutputFile &); // not implemented
|
||
|
|
|
||
|
|
class Data;
|
||
|
|
|
||
|
|
Data * _data;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// ACES input file
|
||
|
|
//
|
||
|
|
|
||
|
|
class AcesInputFile
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
//-------------------------------------------------------
|
||
|
|
// Constructor -- opens the file with the specified name,
|
||
|
|
// destructor will automatically close the file.
|
||
|
|
//-------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
AcesInputFile (const std::string &name,
|
||
|
|
int numThreads = globalThreadCount());
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------
|
||
|
|
// Constructor -- attaches the new AcesInputFile object to a
|
||
|
|
// file that has already been opened by the caller.
|
||
|
|
// Destroying the AcesInputFile object will not automatically
|
||
|
|
// close the file.
|
||
|
|
//-----------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
AcesInputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::IStream &is,
|
||
|
|
int numThreads = globalThreadCount());
|
||
|
|
|
||
|
|
|
||
|
|
//-----------
|
||
|
|
// Destructor
|
||
|
|
//-----------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
virtual ~AcesInputFile ();
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Define a frame buffer as the pixel data destination:
|
||
|
|
// Pixel (x, y) is at address
|
||
|
|
//
|
||
|
|
// base + x * xStride + y * yStride
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void setFrameBuffer (Rgba *base,
|
||
|
|
size_t xStride,
|
||
|
|
size_t yStride);
|
||
|
|
|
||
|
|
|
||
|
|
//--------------------------------------------
|
||
|
|
// Read pixel data (see class Imf::InputFile)
|
||
|
|
// Pixels returned will contain ACES RGB data.
|
||
|
|
//--------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void readPixels (int scanLine1, int scanLine2);
|
||
|
|
IMF_EXPORT
|
||
|
|
void readPixels (int scanLine);
|
||
|
|
|
||
|
|
|
||
|
|
//--------------------------
|
||
|
|
// Access to the file header
|
||
|
|
//--------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
const Header & header () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const IMATH_NAMESPACE::Box2i & displayWindow () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const IMATH_NAMESPACE::Box2i & dataWindow () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
float pixelAspectRatio () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const IMATH_NAMESPACE::V2f screenWindowCenter () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
float screenWindowWidth () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
LineOrder lineOrder () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
Compression compression () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
RgbaChannels channels () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
const char * fileName () const;
|
||
|
|
IMF_EXPORT
|
||
|
|
bool isComplete () const;
|
||
|
|
|
||
|
|
|
||
|
|
//----------------------------------
|
||
|
|
// Access to the file format version
|
||
|
|
//----------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
int version () const;
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
AcesInputFile (const AcesInputFile &); // not implemented
|
||
|
|
AcesInputFile & operator = (const AcesInputFile &); // not implemented
|
||
|
|
|
||
|
|
class Data;
|
||
|
|
|
||
|
|
Data * _data;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|