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1692 lines
41 KiB
1692 lines
41 KiB
/////////////////////////////////////////////////////////////////////////// |
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// |
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// Copyright (c) 2004, 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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//----------------------------------------------------------------------------- |
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// |
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// class TiledOutputFile |
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// |
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//----------------------------------------------------------------------------- |
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#include <ImfTiledOutputFile.h> |
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#include <ImfTiledInputFile.h> |
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#include <ImfInputFile.h> |
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#include <ImfTileDescriptionAttribute.h> |
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#include <ImfPreviewImageAttribute.h> |
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#include <ImfChannelList.h> |
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#include <ImfMisc.h> |
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#include <ImfTiledMisc.h> |
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#include <ImfStdIO.h> |
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#include <ImfCompressor.h> |
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#include "ImathBox.h" |
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#include <ImfArray.h> |
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#include <ImfXdr.h> |
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#include <ImfVersion.h> |
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#include <ImfTileOffsets.h> |
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#include <ImfThreading.h> |
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#include "IlmThreadPool.h" |
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#include "IlmThreadSemaphore.h" |
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#include "IlmThreadMutex.h" |
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#include "Iex.h" |
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#include <string> |
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#include <vector> |
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#include <fstream> |
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#include <assert.h> |
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#include <map> |
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namespace Imf { |
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using Imath::Box2i; |
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using Imath::V2i; |
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using std::string; |
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using std::vector; |
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using std::ofstream; |
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using std::map; |
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using std::min; |
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using std::max; |
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using std::swap; |
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using IlmThread::Mutex; |
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using IlmThread::Lock; |
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using IlmThread::Semaphore; |
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using IlmThread::Task; |
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using IlmThread::TaskGroup; |
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using IlmThread::ThreadPool; |
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namespace { |
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struct TOutSliceInfo |
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{ |
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PixelType type; |
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const char * base; |
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size_t xStride; |
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size_t yStride; |
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bool zero; |
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int xTileCoords; |
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int yTileCoords; |
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TOutSliceInfo (PixelType type = HALF, |
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const char *base = 0, |
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size_t xStride = 0, |
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size_t yStride = 0, |
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bool zero = false, |
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int xTileCoords = 0, |
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int yTileCoords = 0); |
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}; |
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TOutSliceInfo::TOutSliceInfo (PixelType t, |
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const char *b, |
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size_t xs, size_t ys, |
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bool z, |
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int xtc, |
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int ytc) |
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: |
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type (t), |
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base (b), |
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xStride (xs), |
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yStride (ys), |
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zero (z), |
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xTileCoords (xtc), |
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yTileCoords (ytc) |
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{ |
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// empty |
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} |
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struct TileCoord |
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{ |
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int dx; |
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int dy; |
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int lx; |
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int ly; |
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TileCoord (int xTile = 0, int yTile = 0, |
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int xLevel = 0, int yLevel = 0) |
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: |
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dx (xTile), dy (yTile), |
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lx (xLevel), ly (yLevel) |
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{ |
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// empty |
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} |
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bool |
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operator < (const TileCoord &other) const |
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{ |
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return (ly < other.ly) || |
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(ly == other.ly && lx < other.lx) || |
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((ly == other.ly && lx == other.lx) && |
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((dy < other.dy) || (dy == other.dy && dx < other.dx))); |
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} |
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bool |
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operator == (const TileCoord &other) const |
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{ |
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return lx == other.lx && |
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ly == other.ly && |
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dx == other.dx && |
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dy == other.dy; |
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} |
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}; |
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struct BufferedTile |
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{ |
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char * pixelData; |
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int pixelDataSize; |
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BufferedTile (const char *data, int size): |
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pixelData (0), |
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pixelDataSize(size) |
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{ |
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pixelData = new char[pixelDataSize]; |
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memcpy (pixelData, data, pixelDataSize); |
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} |
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~BufferedTile() |
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{ |
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delete [] pixelData; |
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} |
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}; |
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typedef map <TileCoord, BufferedTile *> TileMap; |
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struct TileBuffer |
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{ |
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Array<char> buffer; |
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const char * dataPtr; |
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int dataSize; |
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Compressor * compressor; |
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TileCoord tileCoord; |
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bool hasException; |
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string exception; |
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TileBuffer (Compressor *comp); |
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~TileBuffer (); |
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inline void wait () {_sem.wait();} |
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inline void post () {_sem.post();} |
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protected: |
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Semaphore _sem; |
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}; |
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TileBuffer::TileBuffer (Compressor *comp): |
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dataPtr (0), |
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dataSize (0), |
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compressor (comp), |
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hasException (false), |
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exception (), |
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_sem (1) |
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{ |
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// empty |
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} |
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TileBuffer::~TileBuffer () |
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{ |
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delete compressor; |
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} |
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} // namespace |
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struct TiledOutputFile::Data: public Mutex |
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{ |
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Header header; // the image header |
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int version; // file format version |
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TileDescription tileDesc; // describes the tile layout |
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FrameBuffer frameBuffer; // framebuffer to write into |
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Int64 previewPosition; |
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LineOrder lineOrder; // the file's lineorder |
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int minX; // data window's min x coord |
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int maxX; // data window's max x coord |
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int minY; // data window's min y coord |
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int maxY; // data window's max x coord |
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int numXLevels; // number of x levels |
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int numYLevels; // number of y levels |
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int * numXTiles; // number of x tiles at a level |
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int * numYTiles; // number of y tiles at a level |
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TileOffsets tileOffsets; // stores offsets in file for |
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// each tile |
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Compressor::Format format; // compressor's data format |
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vector<TOutSliceInfo> slices; // info about channels in file |
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OStream * os; // file stream to write to |
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bool deleteStream; |
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size_t maxBytesPerTileLine; // combined size of a tile line |
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// over all channels |
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vector<TileBuffer*> tileBuffers; |
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size_t tileBufferSize; // size of a tile buffer |
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Int64 tileOffsetsPosition; // position of the tile index |
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Int64 currentPosition; // current position in the file |
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TileMap tileMap; |
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TileCoord nextTileToWrite; |
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Data (bool del, int numThreads); |
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~Data (); |
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inline TileBuffer * getTileBuffer (int number); |
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// hash function from tile |
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// buffer coords into our |
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// vector of tile buffers |
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TileCoord nextTileCoord (const TileCoord &a); |
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}; |
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TiledOutputFile::Data::Data (bool del, int numThreads): |
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numXTiles(0), |
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numYTiles(0), |
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os (0), |
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deleteStream (del), |
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tileOffsetsPosition (0) |
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{ |
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// |
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// We need at least one tileBuffer, but if threading is used, |
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// to keep n threads busy we need 2*n tileBuffers |
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// |
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tileBuffers.resize (max (1, 2 * numThreads)); |
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} |
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TiledOutputFile::Data::~Data () |
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{ |
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delete [] numXTiles; |
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delete [] numYTiles; |
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if (deleteStream) |
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delete os; |
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// |
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// Delete all the tile buffers, if any still happen to exist |
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// |
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for (TileMap::iterator i = tileMap.begin(); i != tileMap.end(); ++i) |
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delete i->second; |
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for (size_t i = 0; i < tileBuffers.size(); i++) |
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delete tileBuffers[i]; |
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} |
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TileBuffer* |
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TiledOutputFile::Data::getTileBuffer (int number) |
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{ |
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return tileBuffers[number % tileBuffers.size()]; |
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} |
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TileCoord |
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TiledOutputFile::Data::nextTileCoord (const TileCoord &a) |
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{ |
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TileCoord b = a; |
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if (lineOrder == INCREASING_Y) |
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{ |
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b.dx++; |
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if (b.dx >= numXTiles[b.lx]) |
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{ |
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b.dx = 0; |
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b.dy++; |
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if (b.dy >= numYTiles[b.ly]) |
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{ |
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// |
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// the next tile is in the next level |
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// |
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b.dy = 0; |
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switch (tileDesc.mode) |
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{ |
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case ONE_LEVEL: |
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case MIPMAP_LEVELS: |
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b.lx++; |
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b.ly++; |
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break; |
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case RIPMAP_LEVELS: |
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b.lx++; |
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if (b.lx >= numXLevels) |
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{ |
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b.lx = 0; |
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b.ly++; |
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#ifdef DEBUG |
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assert (b.ly <= numYLevels); |
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#endif |
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} |
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break; |
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} |
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} |
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} |
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} |
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else if (lineOrder == DECREASING_Y) |
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{ |
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b.dx++; |
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if (b.dx >= numXTiles[b.lx]) |
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{ |
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b.dx = 0; |
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b.dy--; |
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if (b.dy < 0) |
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{ |
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// |
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// the next tile is in the next level |
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// |
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switch (tileDesc.mode) |
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{ |
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case ONE_LEVEL: |
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case MIPMAP_LEVELS: |
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b.lx++; |
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b.ly++; |
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break; |
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case RIPMAP_LEVELS: |
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b.lx++; |
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if (b.lx >= numXLevels) |
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{ |
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b.lx = 0; |
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b.ly++; |
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#ifdef DEBUG |
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assert (b.ly <= numYLevels); |
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#endif |
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} |
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break; |
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} |
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if (b.ly < numYLevels) |
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b.dy = numYTiles[b.ly] - 1; |
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} |
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} |
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} |
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return b; |
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} |
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namespace { |
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void |
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writeTileData (TiledOutputFile::Data *ofd, |
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int dx, int dy, |
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int lx, int ly, |
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const char pixelData[], |
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int pixelDataSize) |
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{ |
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// |
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// Store a block of pixel data in the output file, and try |
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// to keep track of the current writing position the file, |
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// without calling tellp() (tellp() can be fairly expensive). |
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// |
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Int64 currentPosition = ofd->currentPosition; |
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ofd->currentPosition = 0; |
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if (currentPosition == 0) |
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currentPosition = ofd->os->tellp(); |
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ofd->tileOffsets (dx, dy, lx, ly) = currentPosition; |
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#ifdef DEBUG |
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assert (ofd->os->tellp() == currentPosition); |
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#endif |
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// |
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// Write the tile header. |
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// |
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Xdr::write <StreamIO> (*ofd->os, dx); |
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Xdr::write <StreamIO> (*ofd->os, dy); |
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Xdr::write <StreamIO> (*ofd->os, lx); |
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Xdr::write <StreamIO> (*ofd->os, ly); |
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Xdr::write <StreamIO> (*ofd->os, pixelDataSize); |
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ofd->os->write (pixelData, pixelDataSize); |
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// |
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// Keep current position in the file so that we can avoid |
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// redundant seekg() operations (seekg() can be fairly expensive). |
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// |
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ofd->currentPosition = currentPosition + |
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5 * Xdr::size<int>() + |
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pixelDataSize; |
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} |
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void |
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bufferedTileWrite (TiledOutputFile::Data *ofd, |
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int dx, int dy, |
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int lx, int ly, |
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const char pixelData[], |
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int pixelDataSize) |
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{ |
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// |
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// Check if a tile with coordinates (dx,dy,lx,ly) has already been written. |
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// |
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if (ofd->tileOffsets (dx, dy, lx, ly)) |
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{ |
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THROW (Iex::ArgExc, |
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"Attempt to write tile " |
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"(" << dx << ", " << dy << ", " << lx << "," << ly << ") " |
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"more than once."); |
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} |
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// |
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// If tiles can be written in random order, then don't buffer anything. |
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// |
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if (ofd->lineOrder == RANDOM_Y) |
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{ |
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writeTileData (ofd, dx, dy, lx, ly, pixelData, pixelDataSize); |
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return; |
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} |
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// |
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// If the tiles cannot be written in random order, then check if a |
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// tile with coordinates (dx,dy,lx,ly) has already been buffered. |
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// |
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TileCoord currentTile = TileCoord(dx, dy, lx, ly); |
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|
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if (ofd->tileMap.find (currentTile) != ofd->tileMap.end()) |
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{ |
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THROW (Iex::ArgExc, |
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"Attempt to write tile " |
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"(" << dx << ", " << dy << ", " << lx << "," << ly << ") " |
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"more than once."); |
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} |
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// |
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// If all the tiles before this one have already been written to the file, |
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// then write this tile immediately and check if we have buffered tiles |
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// that can be written after this tile. |
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// |
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// Otherwise, buffer the tile so it can be written to file later. |
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// |
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if (ofd->nextTileToWrite == currentTile) |
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{ |
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writeTileData (ofd, dx, dy, lx, ly, pixelData, pixelDataSize); |
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ofd->nextTileToWrite = ofd->nextTileCoord (ofd->nextTileToWrite); |
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TileMap::iterator i = ofd->tileMap.find (ofd->nextTileToWrite); |
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|
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// |
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// Step through the tiles and write all successive buffered tiles after |
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// the current one. |
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// |
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while(i != ofd->tileMap.end()) |
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{ |
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// |
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// Write the tile, and then delete the tile's buffered data |
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// |
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writeTileData (ofd, |
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i->first.dx, i->first.dy, |
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i->first.lx, i->first.ly, |
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i->second->pixelData, |
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i->second->pixelDataSize); |
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delete i->second; |
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ofd->tileMap.erase (i); |
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|
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// |
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// Proceed to the next tile |
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// |
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ofd->nextTileToWrite = ofd->nextTileCoord (ofd->nextTileToWrite); |
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i = ofd->tileMap.find (ofd->nextTileToWrite); |
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} |
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} |
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else |
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{ |
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// |
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// Create a new BufferedTile, copy the pixelData into it, and |
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// insert it into the tileMap. |
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// |
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ofd->tileMap[currentTile] = |
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new BufferedTile ((const char *)pixelData, pixelDataSize); |
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} |
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} |
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|
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void |
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convertToXdr (TiledOutputFile::Data *ofd, |
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Array<char>& tileBuffer, |
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int numScanLines, |
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int numPixelsPerScanLine) |
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{ |
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// |
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// Convert the contents of a TiledOutputFile's tileBuffer from the |
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// machine's native representation to Xdr format. This function is called |
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// by writeTile(), below, if the compressor wanted its input pixel data |
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// in the machine's native format, but then failed to compress the data |
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// (most compressors will expand rather than compress random input data). |
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// |
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// Note that this routine assumes that the machine's native representation |
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// of the pixel data has the same size as the Xdr representation. This |
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// makes it possible to convert the pixel data in place, without an |
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// intermediate temporary buffer. |
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// |
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|
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// |
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// Set these to point to the start of the tile. |
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// We will write to toPtr, and read from fromPtr. |
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// |
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|
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char *writePtr = tileBuffer; |
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const char *readPtr = writePtr; |
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|
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// |
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// Iterate over all scan lines in the tile. |
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// |
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for (int y = 0; y < numScanLines; ++y) |
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{ |
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// |
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// Iterate over all slices in the file. |
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// |
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for (unsigned int i = 0; i < ofd->slices.size(); ++i) |
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{ |
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const TOutSliceInfo &slice = ofd->slices[i]; |
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|
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// |
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// Convert the samples in place. |
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// |
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|
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convertInPlace (writePtr, readPtr, slice.type, |
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numPixelsPerScanLine); |
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} |
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} |
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#ifdef DEBUG |
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|
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assert (writePtr == readPtr); |
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#endif |
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} |
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|
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// |
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// A TileBufferTask encapsulates the task of copying a tile from |
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// the user's framebuffer into a LineBuffer and compressing the data |
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// if necessary. |
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// |
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|
|
class TileBufferTask: public Task |
|
{ |
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public: |
|
|
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TileBufferTask (TaskGroup *group, |
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TiledOutputFile::Data *ofd, |
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int number, |
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int dx, int dy, |
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int lx, int ly); |
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|
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virtual ~TileBufferTask (); |
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|
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virtual void execute (); |
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private: |
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|
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TiledOutputFile::Data * _ofd; |
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TileBuffer * _tileBuffer; |
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}; |
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TileBufferTask::TileBufferTask |
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(TaskGroup *group, |
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TiledOutputFile::Data *ofd, |
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int number, |
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int dx, int dy, |
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int lx, int ly) |
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: |
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Task (group), |
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_ofd (ofd), |
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_tileBuffer (_ofd->getTileBuffer (number)) |
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{ |
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// |
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// Wait for the tileBuffer to become available |
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// |
|
|
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_tileBuffer->wait (); |
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_tileBuffer->tileCoord = TileCoord (dx, dy, lx, ly); |
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} |
|
|
|
|
|
TileBufferTask::~TileBufferTask () |
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{ |
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// |
|
// Signal that the tile buffer is now free |
|
// |
|
|
|
_tileBuffer->post (); |
|
} |
|
|
|
|
|
void |
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TileBufferTask::execute () |
|
{ |
|
try |
|
{ |
|
// |
|
// First copy the pixel data from the frame buffer |
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// into the tile buffer |
|
// |
|
// Convert one tile's worth of pixel data to |
|
// a machine-independent representation, and store |
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// the result in _tileBuffer->buffer. |
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// |
|
|
|
char *writePtr = _tileBuffer->buffer; |
|
|
|
Box2i tileRange = Imf::dataWindowForTile (_ofd->tileDesc, |
|
_ofd->minX, _ofd->maxX, |
|
_ofd->minY, _ofd->maxY, |
|
_tileBuffer->tileCoord.dx, |
|
_tileBuffer->tileCoord.dy, |
|
_tileBuffer->tileCoord.lx, |
|
_tileBuffer->tileCoord.ly); |
|
|
|
int numScanLines = tileRange.max.y - tileRange.min.y + 1; |
|
int numPixelsPerScanLine = tileRange.max.x - tileRange.min.x + 1; |
|
|
|
// |
|
// Iterate over the scan lines in the tile. |
|
// |
|
|
|
for (int y = tileRange.min.y; y <= tileRange.max.y; ++y) |
|
{ |
|
// |
|
// Iterate over all image channels. |
|
// |
|
|
|
for (unsigned int i = 0; i < _ofd->slices.size(); ++i) |
|
{ |
|
const TOutSliceInfo &slice = _ofd->slices[i]; |
|
|
|
// |
|
// These offsets are used to facilitate both absolute |
|
// and tile-relative pixel coordinates. |
|
// |
|
|
|
int xOffset = slice.xTileCoords * tileRange.min.x; |
|
int yOffset = slice.yTileCoords * tileRange.min.y; |
|
|
|
// |
|
// Fill the tile buffer with pixel data. |
|
// |
|
|
|
if (slice.zero) |
|
{ |
|
// |
|
// The frame buffer contains no data for this channel. |
|
// Store zeroes in _data->tileBuffer. |
|
// |
|
|
|
fillChannelWithZeroes (writePtr, _ofd->format, slice.type, |
|
numPixelsPerScanLine); |
|
} |
|
else |
|
{ |
|
// |
|
// The frame buffer contains data for this channel. |
|
// |
|
|
|
const char *readPtr = slice.base + |
|
(y - yOffset) * slice.yStride + |
|
(tileRange.min.x - xOffset) * |
|
slice.xStride; |
|
|
|
const char *endPtr = readPtr + |
|
(numPixelsPerScanLine - 1) * |
|
slice.xStride; |
|
|
|
copyFromFrameBuffer (writePtr, readPtr, endPtr, |
|
slice.xStride, _ofd->format, |
|
slice.type); |
|
} |
|
} |
|
} |
|
|
|
// |
|
// Compress the contents of the tileBuffer, |
|
// and store the compressed data in the output file. |
|
// |
|
|
|
_tileBuffer->dataSize = writePtr - _tileBuffer->buffer; |
|
_tileBuffer->dataPtr = _tileBuffer->buffer; |
|
|
|
if (_tileBuffer->compressor) |
|
{ |
|
const char *compPtr; |
|
|
|
int compSize = _tileBuffer->compressor->compressTile |
|
(_tileBuffer->dataPtr, |
|
_tileBuffer->dataSize, |
|
tileRange, compPtr); |
|
|
|
if (compSize < _tileBuffer->dataSize) |
|
{ |
|
_tileBuffer->dataSize = compSize; |
|
_tileBuffer->dataPtr = compPtr; |
|
} |
|
else if (_ofd->format == Compressor::NATIVE) |
|
{ |
|
// |
|
// The data did not shrink during compression, but |
|
// we cannot write to the file using native format, |
|
// so we need to convert the lineBuffer to Xdr. |
|
// |
|
|
|
convertToXdr (_ofd, _tileBuffer->buffer, numScanLines, |
|
numPixelsPerScanLine); |
|
} |
|
} |
|
} |
|
catch (std::exception &e) |
|
{ |
|
if (!_tileBuffer->hasException) |
|
{ |
|
_tileBuffer->exception = e.what (); |
|
_tileBuffer->hasException = true; |
|
} |
|
} |
|
catch (...) |
|
{ |
|
if (!_tileBuffer->hasException) |
|
{ |
|
_tileBuffer->exception = "unrecognized exception"; |
|
_tileBuffer->hasException = true; |
|
} |
|
} |
|
} |
|
|
|
} // namespace |
|
|
|
|
|
TiledOutputFile::TiledOutputFile |
|
(const char fileName[], |
|
const Header &header, |
|
int numThreads) |
|
: |
|
_data (new Data (true, numThreads)) |
|
{ |
|
try |
|
{ |
|
header.sanityCheck (true); |
|
_data->os = new StdOFStream (fileName); |
|
initialize (header); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
delete _data; |
|
|
|
REPLACE_EXC (e, "Cannot open image file " |
|
"\"" << fileName << "\". " << e); |
|
throw; |
|
} |
|
catch (...) |
|
{ |
|
delete _data; |
|
throw; |
|
} |
|
} |
|
|
|
|
|
TiledOutputFile::TiledOutputFile |
|
(OStream &os, |
|
const Header &header, |
|
int numThreads) |
|
: |
|
_data (new Data (false, numThreads)) |
|
{ |
|
try |
|
{ |
|
header.sanityCheck(true); |
|
_data->os = &os; |
|
initialize (header); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
delete _data; |
|
|
|
REPLACE_EXC (e, "Cannot open image file " |
|
"\"" << os.fileName() << "\". " << e); |
|
throw; |
|
} |
|
catch (...) |
|
{ |
|
delete _data; |
|
throw; |
|
} |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::initialize (const Header &header) |
|
{ |
|
_data->header = header; |
|
_data->lineOrder = _data->header.lineOrder(); |
|
|
|
// |
|
// Check that the file is indeed tiled |
|
// |
|
|
|
_data->tileDesc = _data->header.tileDescription(); |
|
|
|
// |
|
// Save the dataWindow information |
|
// |
|
|
|
const Box2i &dataWindow = _data->header.dataWindow(); |
|
_data->minX = dataWindow.min.x; |
|
_data->maxX = dataWindow.max.x; |
|
_data->minY = dataWindow.min.y; |
|
_data->maxY = dataWindow.max.y; |
|
|
|
// |
|
// Precompute level and tile information to speed up utility functions |
|
// |
|
|
|
precalculateTileInfo (_data->tileDesc, |
|
_data->minX, _data->maxX, |
|
_data->minY, _data->maxY, |
|
_data->numXTiles, _data->numYTiles, |
|
_data->numXLevels, _data->numYLevels); |
|
|
|
// |
|
// Determine the first tile coordinate that we will be writing |
|
// if the file is not RANDOM_Y. |
|
// |
|
|
|
_data->nextTileToWrite = (_data->lineOrder == INCREASING_Y)? |
|
TileCoord (0, 0, 0, 0): |
|
TileCoord (0, _data->numYTiles[0] - 1, 0, 0); |
|
|
|
_data->maxBytesPerTileLine = |
|
calculateBytesPerPixel (_data->header) * _data->tileDesc.xSize; |
|
|
|
_data->tileBufferSize = _data->maxBytesPerTileLine * _data->tileDesc.ySize; |
|
|
|
// |
|
// Create all the TileBuffers and allocate their internal buffers |
|
// |
|
|
|
for (size_t i = 0; i < _data->tileBuffers.size(); i++) |
|
{ |
|
_data->tileBuffers[i] = new TileBuffer (newTileCompressor |
|
(_data->header.compression(), |
|
_data->maxBytesPerTileLine, |
|
_data->tileDesc.ySize, |
|
_data->header)); |
|
|
|
_data->tileBuffers[i]->buffer.resizeErase(_data->tileBufferSize); |
|
} |
|
|
|
_data->format = defaultFormat (_data->tileBuffers[0]->compressor); |
|
|
|
_data->tileOffsets = TileOffsets (_data->tileDesc.mode, |
|
_data->numXLevels, |
|
_data->numYLevels, |
|
_data->numXTiles, |
|
_data->numYTiles); |
|
|
|
_data->previewPosition = _data->header.writeTo (*_data->os, true); |
|
|
|
_data->tileOffsetsPosition = _data->tileOffsets.writeTo (*_data->os); |
|
_data->currentPosition = _data->os->tellp(); |
|
} |
|
|
|
|
|
TiledOutputFile::~TiledOutputFile () |
|
{ |
|
if (_data) |
|
{ |
|
{ |
|
if (_data->tileOffsetsPosition > 0) |
|
{ |
|
try |
|
{ |
|
_data->os->seekp (_data->tileOffsetsPosition); |
|
_data->tileOffsets.writeTo (*_data->os); |
|
} |
|
catch (...) |
|
{ |
|
// |
|
// We cannot safely throw any exceptions from here. |
|
// This destructor may have been called because the |
|
// stack is currently being unwound for another |
|
// exception. |
|
// |
|
} |
|
} |
|
} |
|
|
|
delete _data; |
|
} |
|
} |
|
|
|
|
|
const char * |
|
TiledOutputFile::fileName () const |
|
{ |
|
return _data->os->fileName(); |
|
} |
|
|
|
|
|
const Header & |
|
TiledOutputFile::header () const |
|
{ |
|
return _data->header; |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::setFrameBuffer (const FrameBuffer &frameBuffer) |
|
{ |
|
Lock lock (*_data); |
|
|
|
// |
|
// Check if the new frame buffer descriptor |
|
// is compatible with the image file header. |
|
// |
|
|
|
const ChannelList &channels = _data->header.channels(); |
|
|
|
for (ChannelList::ConstIterator i = channels.begin(); |
|
i != channels.end(); |
|
++i) |
|
{ |
|
FrameBuffer::ConstIterator j = frameBuffer.find (i.name()); |
|
|
|
if (j == frameBuffer.end()) |
|
continue; |
|
|
|
if (i.channel().type != j.slice().type) |
|
THROW (Iex::ArgExc, "Pixel type of \"" << i.name() << "\" channel " |
|
"of output file \"" << fileName() << "\" is " |
|
"not compatible with the frame buffer's " |
|
"pixel type."); |
|
|
|
if (j.slice().xSampling != 1 || j.slice().ySampling != 1) |
|
THROW (Iex::ArgExc, "All channels in a tiled file must have" |
|
"sampling (1,1)."); |
|
} |
|
|
|
// |
|
// Initialize slice table for writePixels(). |
|
// |
|
|
|
vector<TOutSliceInfo> slices; |
|
|
|
for (ChannelList::ConstIterator i = channels.begin(); |
|
i != channels.end(); |
|
++i) |
|
{ |
|
FrameBuffer::ConstIterator j = frameBuffer.find (i.name()); |
|
|
|
if (j == frameBuffer.end()) |
|
{ |
|
// |
|
// Channel i is not present in the frame buffer. |
|
// In the file, channel i will contain only zeroes. |
|
// |
|
|
|
slices.push_back (TOutSliceInfo (i.channel().type, |
|
0, // base |
|
0, // xStride, |
|
0, // yStride, |
|
true)); // zero |
|
} |
|
else |
|
{ |
|
// |
|
// Channel i is present in the frame buffer. |
|
// |
|
|
|
slices.push_back (TOutSliceInfo (j.slice().type, |
|
j.slice().base, |
|
j.slice().xStride, |
|
j.slice().yStride, |
|
false, // zero |
|
(j.slice().xTileCoords)? 1: 0, |
|
(j.slice().yTileCoords)? 1: 0)); |
|
} |
|
} |
|
|
|
// |
|
// Store the new frame buffer. |
|
// |
|
|
|
_data->frameBuffer = frameBuffer; |
|
_data->slices = slices; |
|
} |
|
|
|
|
|
const FrameBuffer & |
|
TiledOutputFile::frameBuffer () const |
|
{ |
|
Lock lock (*_data); |
|
return _data->frameBuffer; |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::writeTiles (int dx1, int dx2, int dy1, int dy2, |
|
int lx, int ly) |
|
{ |
|
try |
|
{ |
|
Lock lock (*_data); |
|
|
|
if (_data->slices.size() == 0) |
|
throw Iex::ArgExc ("No frame buffer specified " |
|
"as pixel data source."); |
|
|
|
if (!isValidTile (dx1, dy1, lx, ly) || !isValidTile (dx2, dy2, lx, ly)) |
|
throw Iex::ArgExc ("Tile coordinates are invalid."); |
|
|
|
// |
|
// Determine the first and last tile coordinates in both dimensions |
|
// based on the file's lineOrder |
|
// |
|
|
|
if (dx1 > dx2) |
|
swap (dx1, dx2); |
|
|
|
if (dy1 > dy2) |
|
swap (dy1, dy2); |
|
|
|
int dyStart = dy1; |
|
int dyStop = dy2 + 1; |
|
int dY = 1; |
|
|
|
if (_data->lineOrder == DECREASING_Y) |
|
{ |
|
dyStart = dy2; |
|
dyStop = dy1 - 1; |
|
dY = -1; |
|
} |
|
|
|
int numTiles = (dx2 - dx1 + 1) * (dy2 - dy1 + 1); |
|
int numTasks = min ((int)_data->tileBuffers.size(), numTiles); |
|
|
|
// |
|
// Create a task group for all tile buffer tasks. When the |
|
// task group goes out of scope, the destructor waits until |
|
// all tasks are complete. |
|
// |
|
|
|
{ |
|
TaskGroup taskGroup; |
|
|
|
// |
|
// Add in the initial compression tasks to the thread pool |
|
// |
|
|
|
int nextCompBuffer = 0; |
|
int dxComp = dx1; |
|
int dyComp = dyStart; |
|
|
|
while (nextCompBuffer < numTasks) |
|
{ |
|
ThreadPool::addGlobalTask (new TileBufferTask (&taskGroup, |
|
_data, |
|
nextCompBuffer++, |
|
dxComp, dyComp, |
|
lx, ly)); |
|
dxComp++; |
|
|
|
if (dxComp > dx2) |
|
{ |
|
dxComp = dx1; |
|
dyComp += dY; |
|
} |
|
} |
|
|
|
// |
|
// Write the compressed buffers and add in more compression |
|
// tasks until done |
|
// |
|
|
|
int nextWriteBuffer = 0; |
|
int dxWrite = dx1; |
|
int dyWrite = dyStart; |
|
|
|
while (nextWriteBuffer < numTiles) |
|
{ |
|
// |
|
// Wait until the nextWriteBuffer is ready to be written |
|
// |
|
|
|
TileBuffer* writeBuffer = |
|
_data->getTileBuffer (nextWriteBuffer); |
|
|
|
writeBuffer->wait(); |
|
|
|
// |
|
// Write the tilebuffer |
|
// |
|
|
|
bufferedTileWrite (_data, dxWrite, dyWrite, lx, ly, |
|
writeBuffer->dataPtr, |
|
writeBuffer->dataSize); |
|
|
|
// |
|
// Release the lock on nextWriteBuffer |
|
// |
|
|
|
writeBuffer->post(); |
|
|
|
// |
|
// If there are no more tileBuffers to compress, then |
|
// only continue to write out remaining tileBuffers, |
|
// otherwise keep adding compression tasks. |
|
// |
|
|
|
if (nextCompBuffer < numTiles) |
|
{ |
|
// |
|
// add nextCompBuffer as a compression Task |
|
// |
|
|
|
ThreadPool::addGlobalTask |
|
(new TileBufferTask (&taskGroup, |
|
_data, |
|
nextCompBuffer, |
|
dxComp, dyComp, |
|
lx, ly)); |
|
} |
|
|
|
nextWriteBuffer++; |
|
dxWrite++; |
|
|
|
if (dxWrite > dx2) |
|
{ |
|
dxWrite = dx1; |
|
dyWrite += dY; |
|
} |
|
|
|
nextCompBuffer++; |
|
dxComp++; |
|
|
|
if (dxComp > dx2) |
|
{ |
|
dxComp = dx1; |
|
dyComp += dY; |
|
} |
|
} |
|
|
|
// |
|
// finish all tasks |
|
// |
|
} |
|
|
|
// |
|
// Exeption handling: |
|
// |
|
// TileBufferTask::execute() may have encountered exceptions, but |
|
// those exceptions occurred in another thread, not in the thread |
|
// that is executing this call to TiledOutputFile::writeTiles(). |
|
// TileBufferTask::execute() has caught all exceptions and stored |
|
// the exceptions' what() strings in the tile buffers. |
|
// Now we check if any tile buffer contains a stored exception; if |
|
// this is the case then we re-throw the exception in this thread. |
|
// (It is possible that multiple tile buffers contain stored |
|
// exceptions. We re-throw the first exception we find and |
|
// ignore all others.) |
|
// |
|
|
|
const string *exception = 0; |
|
|
|
for (int i = 0; i < _data->tileBuffers.size(); ++i) |
|
{ |
|
TileBuffer *tileBuffer = _data->tileBuffers[i]; |
|
|
|
if (tileBuffer->hasException && !exception) |
|
exception = &tileBuffer->exception; |
|
|
|
tileBuffer->hasException = false; |
|
} |
|
|
|
if (exception) |
|
throw Iex::IoExc (*exception); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
REPLACE_EXC (e, "Failed to write pixel data to image " |
|
"file \"" << fileName() << "\". " << e); |
|
throw; |
|
} |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::writeTiles (int dx1, int dxMax, int dyMin, int dyMax, int l) |
|
{ |
|
writeTiles (dx1, dxMax, dyMin, dyMax, l, l); |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::writeTile (int dx, int dy, int lx, int ly) |
|
{ |
|
writeTiles (dx, dx, dy, dy, lx, ly); |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::writeTile (int dx, int dy, int l) |
|
{ |
|
writeTile(dx, dy, l, l); |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::copyPixels (TiledInputFile &in) |
|
{ |
|
Lock lock (*_data); |
|
|
|
// |
|
// Check if this file's and and the InputFile's |
|
// headers are compatible. |
|
// |
|
|
|
const Header &hdr = _data->header; |
|
const Header &inHdr = in.header(); |
|
|
|
if (!hdr.hasTileDescription() || !inHdr.hasTileDescription()) |
|
THROW (Iex::ArgExc, "Cannot perform a quick pixel copy from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << fileName() << "\". The " |
|
"output file is tiled, but the input file is not. " |
|
"Try using OutputFile::copyPixels() instead."); |
|
|
|
if (!(hdr.tileDescription() == inHdr.tileDescription())) |
|
THROW (Iex::ArgExc, "Quick pixel copy from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << fileName() << "\" failed. " |
|
"The files have different tile descriptions."); |
|
|
|
if (!(hdr.dataWindow() == inHdr.dataWindow())) |
|
THROW (Iex::ArgExc, "Cannot copy pixels from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << fileName() << "\". The " |
|
"files have different data windows."); |
|
|
|
if (!(hdr.lineOrder() == inHdr.lineOrder())) |
|
THROW (Iex::ArgExc, "Quick pixel copy from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << fileName() << "\" failed. " |
|
"The files have different line orders."); |
|
|
|
if (!(hdr.compression() == inHdr.compression())) |
|
THROW (Iex::ArgExc, "Quick pixel copy from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << fileName() << "\" failed. " |
|
"The files use different compression methods."); |
|
|
|
if (!(hdr.channels() == inHdr.channels())) |
|
THROW (Iex::ArgExc, "Quick pixel copy from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << fileName() << "\" " |
|
"failed. The files have different channel " |
|
"lists."); |
|
|
|
// |
|
// Verify that no pixel data have been written to this file yet. |
|
// |
|
|
|
if (!_data->tileOffsets.isEmpty()) |
|
THROW (Iex::LogicExc, "Quick pixel copy from image " |
|
"file \"" << in.fileName() << "\" to image " |
|
"file \"" << _data->os->fileName() << "\" " |
|
"failed. \"" << fileName() << "\" " |
|
"already contains pixel data."); |
|
|
|
// |
|
// Calculate the total number of tiles in the file |
|
// |
|
|
|
int numAllTiles = 0; |
|
|
|
switch (levelMode ()) |
|
{ |
|
case ONE_LEVEL: |
|
case MIPMAP_LEVELS: |
|
|
|
for (size_t i_l = 0; i_l < numLevels (); ++i_l) |
|
numAllTiles += numXTiles (i_l) * numYTiles (i_l); |
|
|
|
break; |
|
|
|
case RIPMAP_LEVELS: |
|
|
|
for (size_t i_ly = 0; i_ly < numYLevels (); ++i_ly) |
|
for (size_t i_lx = 0; i_lx < numXLevels (); ++i_lx) |
|
numAllTiles += numXTiles (i_lx) * numYTiles (i_ly); |
|
|
|
break; |
|
|
|
default: |
|
|
|
throw Iex::ArgExc ("Unknown LevelMode format."); |
|
} |
|
|
|
for (int i = 0; i < numAllTiles; ++i) |
|
{ |
|
const char *pixelData; |
|
int pixelDataSize; |
|
|
|
int dx = _data->nextTileToWrite.dx; |
|
int dy = _data->nextTileToWrite.dy; |
|
int lx = _data->nextTileToWrite.lx; |
|
int ly = _data->nextTileToWrite.ly; |
|
|
|
in.rawTileData (dx, dy, lx, ly, pixelData, pixelDataSize); |
|
writeTileData (_data, dx, dy, lx, ly, pixelData, pixelDataSize); |
|
} |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::copyPixels (InputFile &in) |
|
{ |
|
copyPixels (*in.tFile()); |
|
} |
|
|
|
|
|
unsigned int |
|
TiledOutputFile::tileXSize () const |
|
{ |
|
return _data->tileDesc.xSize; |
|
} |
|
|
|
|
|
unsigned int |
|
TiledOutputFile::tileYSize () const |
|
{ |
|
return _data->tileDesc.ySize; |
|
} |
|
|
|
|
|
LevelMode |
|
TiledOutputFile::levelMode () const |
|
{ |
|
return _data->tileDesc.mode; |
|
} |
|
|
|
|
|
LevelRoundingMode |
|
TiledOutputFile::levelRoundingMode () const |
|
{ |
|
return _data->tileDesc.roundingMode; |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::numLevels () const |
|
{ |
|
if (levelMode() == RIPMAP_LEVELS) |
|
THROW (Iex::LogicExc, "Error calling numLevels() on image " |
|
"file \"" << fileName() << "\" " |
|
"(numLevels() is not defined for RIPMAPs)."); |
|
return _data->numXLevels; |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::numXLevels () const |
|
{ |
|
return _data->numXLevels; |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::numYLevels () const |
|
{ |
|
return _data->numYLevels; |
|
} |
|
|
|
|
|
bool |
|
TiledOutputFile::isValidLevel (int lx, int ly) const |
|
{ |
|
if (lx < 0 || ly < 0) |
|
return false; |
|
|
|
if (levelMode() == MIPMAP_LEVELS && lx != ly) |
|
return false; |
|
|
|
if (lx >= numXLevels() || ly >= numYLevels()) |
|
return false; |
|
|
|
return true; |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::levelWidth (int lx) const |
|
{ |
|
try |
|
{ |
|
int retVal = levelSize (_data->minX, _data->maxX, lx, |
|
_data->tileDesc.roundingMode); |
|
|
|
return retVal; |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
REPLACE_EXC (e, "Error calling levelWidth() on image " |
|
"file \"" << fileName() << "\". " << e); |
|
throw; |
|
} |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::levelHeight (int ly) const |
|
{ |
|
try |
|
{ |
|
return levelSize (_data->minY, _data->maxY, ly, |
|
_data->tileDesc.roundingMode); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
REPLACE_EXC (e, "Error calling levelHeight() on image " |
|
"file \"" << fileName() << "\". " << e); |
|
throw; |
|
} |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::numXTiles (int lx) const |
|
{ |
|
if (lx < 0 || lx >= _data->numXLevels) |
|
THROW (Iex::LogicExc, "Error calling numXTiles() on image " |
|
"file \"" << _data->os->fileName() << "\" " |
|
"(Argument is not in valid range)."); |
|
|
|
return _data->numXTiles[lx]; |
|
} |
|
|
|
|
|
int |
|
TiledOutputFile::numYTiles (int ly) const |
|
{ |
|
if (ly < 0 || ly >= _data->numYLevels) |
|
THROW (Iex::LogicExc, "Error calling numXTiles() on image " |
|
"file \"" << _data->os->fileName() << "\" " |
|
"(Argument is not in valid range)."); |
|
|
|
return _data->numYTiles[ly]; |
|
} |
|
|
|
|
|
Box2i |
|
TiledOutputFile::dataWindowForLevel (int l) const |
|
{ |
|
return dataWindowForLevel (l, l); |
|
} |
|
|
|
|
|
Box2i |
|
TiledOutputFile::dataWindowForLevel (int lx, int ly) const |
|
{ |
|
try |
|
{ |
|
return Imf::dataWindowForLevel (_data->tileDesc, |
|
_data->minX, _data->maxX, |
|
_data->minY, _data->maxY, |
|
lx, ly); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
REPLACE_EXC (e, "Error calling dataWindowForLevel() on image " |
|
"file \"" << fileName() << "\". " << e); |
|
throw; |
|
} |
|
} |
|
|
|
|
|
Box2i |
|
TiledOutputFile::dataWindowForTile (int dx, int dy, int l) const |
|
{ |
|
return dataWindowForTile (dx, dy, l, l); |
|
} |
|
|
|
|
|
Box2i |
|
TiledOutputFile::dataWindowForTile (int dx, int dy, int lx, int ly) const |
|
{ |
|
try |
|
{ |
|
if (!isValidTile (dx, dy, lx, ly)) |
|
throw Iex::ArgExc ("Arguments not in valid range."); |
|
|
|
return Imf::dataWindowForTile (_data->tileDesc, |
|
_data->minX, _data->maxX, |
|
_data->minY, _data->maxY, |
|
dx, dy, |
|
lx, ly); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
REPLACE_EXC (e, "Error calling dataWindowForTile() on image " |
|
"file \"" << fileName() << "\". " << e); |
|
throw; |
|
} |
|
} |
|
|
|
|
|
bool |
|
TiledOutputFile::isValidTile (int dx, int dy, int lx, int ly) const |
|
{ |
|
return ((lx < _data->numXLevels && lx >= 0) && |
|
(ly < _data->numYLevels && ly >= 0) && |
|
(dx < _data->numXTiles[lx] && dx >= 0) && |
|
(dy < _data->numYTiles[ly] && dy >= 0)); |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::updatePreviewImage (const PreviewRgba newPixels[]) |
|
{ |
|
Lock lock (*_data); |
|
|
|
if (_data->previewPosition <= 0) |
|
THROW (Iex::LogicExc, "Cannot update preview image pixels. " |
|
"File \"" << fileName() << "\" does not " |
|
"contain a preview image."); |
|
|
|
// |
|
// Store the new pixels in the header's preview image attribute. |
|
// |
|
|
|
PreviewImageAttribute &pia = |
|
_data->header.typedAttribute <PreviewImageAttribute> ("preview"); |
|
|
|
PreviewImage &pi = pia.value(); |
|
PreviewRgba *pixels = pi.pixels(); |
|
int numPixels = pi.width() * pi.height(); |
|
|
|
for (int i = 0; i < numPixels; ++i) |
|
pixels[i] = newPixels[i]; |
|
|
|
// |
|
// Save the current file position, jump to the position in |
|
// the file where the preview image starts, store the new |
|
// preview image, and jump back to the saved file position. |
|
// |
|
|
|
Int64 savedPosition = _data->os->tellp(); |
|
|
|
try |
|
{ |
|
_data->os->seekp (_data->previewPosition); |
|
pia.writeValueTo (*_data->os, _data->version); |
|
_data->os->seekp (savedPosition); |
|
} |
|
catch (Iex::BaseExc &e) |
|
{ |
|
REPLACE_EXC (e, "Cannot update preview image pixels for " |
|
"file \"" << fileName() << "\". " << e); |
|
throw; |
|
} |
|
} |
|
|
|
|
|
void |
|
TiledOutputFile::breakTile |
|
(int dx, int dy, |
|
int lx, int ly, |
|
int offset, |
|
int length, |
|
char c) |
|
{ |
|
Lock lock (*_data); |
|
|
|
Int64 position = _data->tileOffsets (dx, dy, lx, ly); |
|
|
|
if (!position) |
|
THROW (Iex::ArgExc, |
|
"Cannot overwrite tile " |
|
"(" << dx << ", " << dy << ", " << lx << "," << ly << "). " |
|
"The tile has not yet been stored in " |
|
"file \"" << fileName() << "\"."); |
|
|
|
_data->currentPosition = 0; |
|
_data->os->seekp (position + offset); |
|
|
|
for (int i = 0; i < length; ++i) |
|
_data->os->write (&c, 1); |
|
} |
|
|
|
} // namespace Imf
|
|
|