507 lines
18 KiB
C
507 lines
18 KiB
C
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2011, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDED_IMF_DEEP_TILED_OUTPUT_FILE_H
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#define INCLUDED_IMF_DEEP_TILED_OUTPUT_FILE_H
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//-----------------------------------------------------------------------------
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//
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// class DeepTiledOutputFile
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//
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//-----------------------------------------------------------------------------
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#include "ImfHeader.h"
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#include "ImfFrameBuffer.h"
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#include "ImathBox.h"
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#include "ImfThreading.h"
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#include "ImfGenericOutputFile.h"
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#include "ImfNamespace.h"
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#include "ImfForward.h"
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#include "ImfExport.h"
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
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class DeepTiledOutputFile : public GenericOutputFile
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{
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public:
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//-------------------------------------------------------------------
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// A constructor that opens the file with the specified name, and
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// writes the file header. The file header is also copied into the
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// TiledOutputFile object, and can later be accessed via the header()
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// method.
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//
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// Destroying TiledOutputFile constructed with this constructor
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// automatically closes the corresponding files.
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//
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// The header must contain a TileDescriptionAttribute called "tiles".
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//
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// The x and y subsampling factors for all image channels must be 1;
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// subsampling is not supported.
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//
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// Tiles can be written to the file in arbitrary order. The line
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// order attribute can be used to cause the tiles to be sorted in
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// the file. When the file is read later, reading the tiles in the
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// same order as they are in the file tends to be significantly
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// faster than reading the tiles in random order (see writeTile,
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// below).
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//-------------------------------------------------------------------
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IMF_EXPORT
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DeepTiledOutputFile (const char fileName[],
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const Header &header,
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int numThreads = globalThreadCount ());
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// ----------------------------------------------------------------
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// A constructor that attaches the new TiledOutputFile object to
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// a file that has already been opened. Destroying TiledOutputFile
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// objects constructed with this constructor does not automatically
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// close the corresponding files.
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// ----------------------------------------------------------------
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IMF_EXPORT
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DeepTiledOutputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::OStream &os,
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const Header &header,
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int numThreads = globalThreadCount ());
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//-----------------------------------------------------
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// Destructor
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//
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// Destroying a TiledOutputFile object before all tiles
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// have been written results in an incomplete file.
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//-----------------------------------------------------
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IMF_EXPORT
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virtual ~DeepTiledOutputFile ();
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//------------------------
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// Access to the file name
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//------------------------
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IMF_EXPORT
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const char * fileName () const;
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//--------------------------
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// Access to the file header
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//--------------------------
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IMF_EXPORT
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const Header & header () const;
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//-------------------------------------------------------
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// Set the current frame buffer -- copies the FrameBuffer
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// object into the TiledOutputFile object.
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//
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// The current frame buffer is the source of the pixel
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// data written to the file. The current frame buffer
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// must be set at least once before writeTile() is
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// called. The current frame buffer can be changed
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// after each call to writeTile().
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//-------------------------------------------------------
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IMF_EXPORT
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void setFrameBuffer (const DeepFrameBuffer &frameBuffer);
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//-----------------------------------
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// Access to the current frame buffer
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//-----------------------------------
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IMF_EXPORT
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const DeepFrameBuffer & frameBuffer () const;
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//-------------------
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// Utility functions:
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//-------------------
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//---------------------------------------------------------
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// Multiresolution mode and tile size:
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// The following functions return the xSize, ySize and mode
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// fields of the file header's TileDescriptionAttribute.
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//---------------------------------------------------------
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IMF_EXPORT
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unsigned int tileXSize () const;
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IMF_EXPORT
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unsigned int tileYSize () const;
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IMF_EXPORT
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LevelMode levelMode () const;
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IMF_EXPORT
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LevelRoundingMode levelRoundingMode () const;
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//--------------------------------------------------------------------
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// Number of levels:
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//
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// numXLevels() returns the file's number of levels in x direction.
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//
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// if levelMode() == ONE_LEVEL:
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// return value is: 1
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//
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// if levelMode() == MIPMAP_LEVELS:
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// return value is: rfunc (log (max (w, h)) / log (2)) + 1
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//
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// if levelMode() == RIPMAP_LEVELS:
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// return value is: rfunc (log (w) / log (2)) + 1
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//
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// where
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// w is the width of the image's data window, max.x - min.x + 1,
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// y is the height of the image's data window, max.y - min.y + 1,
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// and rfunc(x) is either floor(x), or ceil(x), depending on
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// whether levelRoundingMode() returns ROUND_DOWN or ROUND_UP.
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//
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// numYLevels() returns the file's number of levels in y direction.
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//
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// if levelMode() == ONE_LEVEL or levelMode() == MIPMAP_LEVELS:
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// return value is the same as for numXLevels()
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//
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// if levelMode() == RIPMAP_LEVELS:
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// return value is: rfunc (log (h) / log (2)) + 1
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//
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//
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// numLevels() is a convenience function for use with MIPMAP_LEVELS
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// files.
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//
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// if levelMode() == ONE_LEVEL or levelMode() == MIPMAP_LEVELS:
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// return value is the same as for numXLevels()
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//
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// if levelMode() == RIPMAP_LEVELS:
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// an IEX_NAMESPACE::LogicExc exception is thrown
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//
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// isValidLevel(lx, ly) returns true if the file contains
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// a level with level number (lx, ly), false if not.
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//
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//--------------------------------------------------------------------
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IMF_EXPORT
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int numLevels () const;
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IMF_EXPORT
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int numXLevels () const;
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IMF_EXPORT
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int numYLevels () const;
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IMF_EXPORT
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bool isValidLevel (int lx, int ly) const;
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//---------------------------------------------------------
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// Dimensions of a level:
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//
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// levelWidth(lx) returns the width of a level with level
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// number (lx, *), where * is any number.
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//
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// return value is:
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// max (1, rfunc (w / pow (2, lx)))
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//
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//
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// levelHeight(ly) returns the height of a level with level
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// number (*, ly), where * is any number.
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//
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// return value is:
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// max (1, rfunc (h / pow (2, ly)))
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//
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//---------------------------------------------------------
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IMF_EXPORT
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int levelWidth (int lx) const;
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IMF_EXPORT
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int levelHeight (int ly) const;
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//----------------------------------------------------------
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// Number of tiles:
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//
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// numXTiles(lx) returns the number of tiles in x direction
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// that cover a level with level number (lx, *), where * is
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// any number.
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//
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// return value is:
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// (levelWidth(lx) + tileXSize() - 1) / tileXSize()
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//
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//
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// numYTiles(ly) returns the number of tiles in y direction
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// that cover a level with level number (*, ly), where * is
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// any number.
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//
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// return value is:
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// (levelHeight(ly) + tileXSize() - 1) / tileXSize()
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//
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//----------------------------------------------------------
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IMF_EXPORT
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int numXTiles (int lx = 0) const;
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IMF_EXPORT
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int numYTiles (int ly = 0) const;
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//---------------------------------------------------------
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// Level pixel ranges:
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//
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// dataWindowForLevel(lx, ly) returns a 2-dimensional
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// region of valid pixel coordinates for a level with
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// level number (lx, ly)
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//
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// return value is a Box2i with min value:
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// (dataWindow.min.x, dataWindow.min.y)
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//
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// and max value:
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// (dataWindow.min.x + levelWidth(lx) - 1,
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// dataWindow.min.y + levelHeight(ly) - 1)
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//
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// dataWindowForLevel(level) is a convenience function used
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// for ONE_LEVEL and MIPMAP_LEVELS files. It returns
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// dataWindowForLevel(level, level).
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//
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//---------------------------------------------------------
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IMF_EXPORT
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IMATH_NAMESPACE::Box2i dataWindowForLevel (int l = 0) const;
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IMF_EXPORT
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IMATH_NAMESPACE::Box2i dataWindowForLevel (int lx, int ly) const;
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//-------------------------------------------------------------------
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// Tile pixel ranges:
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//
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// dataWindowForTile(dx, dy, lx, ly) returns a 2-dimensional
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// region of valid pixel coordinates for a tile with tile coordinates
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// (dx,dy) and level number (lx, ly).
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//
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// return value is a Box2i with min value:
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// (dataWindow.min.x + dx * tileXSize(),
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// dataWindow.min.y + dy * tileYSize())
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//
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// and max value:
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// (dataWindow.min.x + (dx + 1) * tileXSize() - 1,
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// dataWindow.min.y + (dy + 1) * tileYSize() - 1)
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//
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// dataWindowForTile(dx, dy, level) is a convenience function
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// used for ONE_LEVEL and MIPMAP_LEVELS files. It returns
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// dataWindowForTile(dx, dy, level, level).
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//
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//-------------------------------------------------------------------
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IMF_EXPORT
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IMATH_NAMESPACE::Box2i dataWindowForTile (int dx, int dy,
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int l = 0) const;
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IMF_EXPORT
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IMATH_NAMESPACE::Box2i dataWindowForTile (int dx, int dy,
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int lx, int ly) const;
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//------------------------------------------------------------------
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// Write pixel data:
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//
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// writeTile(dx, dy, lx, ly) writes the tile with tile
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// coordinates (dx, dy), and level number (lx, ly) to
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// the file.
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//
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// dx must lie in the interval [0, numXTiles(lx) - 1]
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// dy must lie in the interval [0, numYTiles(ly) - 1]
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//
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// lx must lie in the interval [0, numXLevels() - 1]
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// ly must lie in the inverval [0, numYLevels() - 1]
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//
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// writeTile(dx, dy, level) is a convenience function
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// used for ONE_LEVEL and MIPMAP_LEVEL files. It calls
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// writeTile(dx, dy, level, level).
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//
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// The two writeTiles(dx1, dx2, dy1, dy2, ...) functions allow
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// writing multiple tiles at once. If multi-threading is used
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// multiple tiles are written concurrently. The tile coordinates,
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// dx1, dx2 and dy1, dy2, specify inclusive ranges of tile
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// coordinates. It is valid for dx1 < dx2 or dy1 < dy2; the
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// tiles are always written in the order specified by the line
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// order attribute. Hence, it is not possible to specify an
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// "invalid" or empty tile range.
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//
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// Pixels that are outside the pixel coordinate range for the tile's
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// level, are never accessed by writeTile().
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//
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// Each tile in the file must be written exactly once.
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//
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// The file's line order attribute determines the order of the tiles
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// in the file:
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//
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// INCREASING_Y In the file, the tiles for each level are stored
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// in a contiguous block. The levels are ordered
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// like this:
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//
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// (0, 0) (1, 0) ... (nx-1, 0)
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// (0, 1) (1, 1) ... (nx-1, 1)
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// ...
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// (0,ny-1) (1,ny-1) ... (nx-1,ny-1)
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//
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// where nx = numXLevels(), and ny = numYLevels().
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// In an individual level, (lx, ly), the tiles
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// are stored in the following order:
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//
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// (0, 0) (1, 0) ... (tx-1, 0)
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// (0, 1) (1, 1) ... (tx-1, 1)
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// ...
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// (0,ty-1) (1,ty-1) ... (tx-1,ty-1)
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//
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// where tx = numXTiles(lx),
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// and ty = numYTiles(ly).
|
||
|
|
//
|
||
|
|
// DECREASING_Y As for INCREASING_Y, the tiles for each level
|
||
|
|
// are stored in a contiguous block. The levels
|
||
|
|
// are ordered the same way as for INCREASING_Y,
|
||
|
|
// but within an individual level, the tiles
|
||
|
|
// are stored in this order:
|
||
|
|
//
|
||
|
|
// (0,ty-1) (1,ty-1) ... (tx-1,ty-1)
|
||
|
|
// ...
|
||
|
|
// (0, 1) (1, 1) ... (tx-1, 1)
|
||
|
|
// (0, 0) (1, 0) ... (tx-1, 0)
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// RANDOM_Y The order of the calls to writeTile() determines
|
||
|
|
// the order of the tiles in the file.
|
||
|
|
//
|
||
|
|
//------------------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void writeTile (int dx, int dy, int l = 0);
|
||
|
|
IMF_EXPORT
|
||
|
|
void writeTile (int dx, int dy, int lx, int ly);
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void writeTiles (int dx1, int dx2, int dy1, int dy2,
|
||
|
|
int lx, int ly);
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void writeTiles (int dx1, int dx2, int dy1, int dy2,
|
||
|
|
int l = 0);
|
||
|
|
|
||
|
|
|
||
|
|
//------------------------------------------------------------------
|
||
|
|
// Shortcut to copy all pixels from a TiledInputFile into this file,
|
||
|
|
// without uncompressing and then recompressing the pixel data.
|
||
|
|
// This file's header must be compatible with the TiledInputFile's
|
||
|
|
// header: The two header's "dataWindow", "compression",
|
||
|
|
// "lineOrder", "channels", and "tiles" attributes must be the same.
|
||
|
|
//------------------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void copyPixels (DeepTiledInputFile &in);
|
||
|
|
IMF_EXPORT
|
||
|
|
void copyPixels (DeepTiledInputPart &in);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//--------------------------------------------------------------
|
||
|
|
// Updating the preview image:
|
||
|
|
//
|
||
|
|
// updatePreviewImage() supplies a new set of pixels for the
|
||
|
|
// preview image attribute in the file's header. If the header
|
||
|
|
// does not contain a preview image, updatePreviewImage() throws
|
||
|
|
// an IEX_NAMESPACE::LogicExc.
|
||
|
|
//
|
||
|
|
// Note: updatePreviewImage() is necessary because images are
|
||
|
|
// often stored in a file incrementally, a few tiles at a time,
|
||
|
|
// while the image is being generated. Since the preview image
|
||
|
|
// is an attribute in the file's header, it gets stored in the
|
||
|
|
// file as soon as the file is opened, but we may not know what
|
||
|
|
// the preview image should look like until we have written the
|
||
|
|
// last tile of the main image.
|
||
|
|
//
|
||
|
|
//--------------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void updatePreviewImage (const PreviewRgba newPixels[]);
|
||
|
|
|
||
|
|
|
||
|
|
//-------------------------------------------------------------
|
||
|
|
// Break a tile -- for testing and debugging only:
|
||
|
|
//
|
||
|
|
// breakTile(dx,dy,lx,ly,p,n,c) introduces an error into the
|
||
|
|
// output file by writing n copies of character c, starting
|
||
|
|
// p bytes from the beginning of the tile with tile coordinates
|
||
|
|
// (dx, dy) and level number (lx, ly).
|
||
|
|
//
|
||
|
|
// Warning: Calling this function usually results in a broken
|
||
|
|
// image file. The file or parts of it may not be readable,
|
||
|
|
// or the file may contain bad data.
|
||
|
|
//
|
||
|
|
//-------------------------------------------------------------
|
||
|
|
|
||
|
|
IMF_EXPORT
|
||
|
|
void breakTile (int dx, int dy,
|
||
|
|
int lx, int ly,
|
||
|
|
int offset,
|
||
|
|
int length,
|
||
|
|
char c);
|
||
|
|
struct Data;
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------
|
||
|
|
// A constructor attaches the OutputStreamMutex to the
|
||
|
|
// given one from MultiPartOutputFile. Set the previewPosition
|
||
|
|
// and lineOffsetsPosition which have been acquired from
|
||
|
|
// the constructor of MultiPartOutputFile as well.
|
||
|
|
// ----------------------------------------------------------------
|
||
|
|
DeepTiledOutputFile (const OutputPartData* part);
|
||
|
|
|
||
|
|
DeepTiledOutputFile (const DeepTiledOutputFile &); // not implemented
|
||
|
|
DeepTiledOutputFile & operator = (const DeepTiledOutputFile &); // not implemented
|
||
|
|
|
||
|
|
void initialize (const Header &header);
|
||
|
|
|
||
|
|
bool isValidTile (int dx, int dy,
|
||
|
|
int lx, int ly) const;
|
||
|
|
|
||
|
|
size_t bytesPerLineForTile (int dx, int dy,
|
||
|
|
int lx, int ly) const;
|
||
|
|
|
||
|
|
Data * _data;
|
||
|
|
|
||
|
|
|
||
|
|
friend class MultiPartOutputFile;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
|
||
|
|
|
||
|
|
#endif
|