460 lines
12 KiB
C++
460 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2014, 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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// OpenEXR file I/O for deep images.
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//
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//----------------------------------------------------------------------------
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#include "ImfDeepImageIO.h"
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#include <ImfDeepScanLineInputFile.h>
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#include <ImfDeepScanLineOutputFile.h>
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#include <ImfDeepTiledInputFile.h>
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#include <ImfDeepTiledOutputFile.h>
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#include <ImfMultiPartInputFile.h>
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#include <ImfHeader.h>
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#include <ImfChannelList.h>
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#include <ImfTestFile.h>
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#include <ImfPartType.h>
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#include <Iex.h>
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#include <cstring>
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#include <cassert>
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using namespace IMATH_NAMESPACE;
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using namespace IEX_NAMESPACE;
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using namespace std;
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OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
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void
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saveDeepImage
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(const string &fileName,
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const Header &hdr,
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const DeepImage &img,
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DataWindowSource dws)
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{
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if (img.levelMode() != ONE_LEVEL || hdr.hasTileDescription())
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saveDeepTiledImage (fileName, hdr, img, dws);
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else
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saveDeepScanLineImage (fileName, hdr, img, dws);
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}
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void
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saveDeepImage
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(const string &fileName,
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const DeepImage &img)
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{
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Header hdr;
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hdr.displayWindow() = img.dataWindow();
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saveDeepImage (fileName, hdr, img);
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}
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void
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loadDeepImage
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(const string &fileName,
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Header &hdr,
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DeepImage &img)
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{
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bool tiled, deep, multiPart;
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if (!isOpenExrFile (fileName.c_str(), tiled, deep, multiPart))
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{
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THROW (ArgExc, "Cannot load image file " << fileName << ". "
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"The file is not an OpenEXR file.");
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}
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if (multiPart)
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{
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THROW (ArgExc, "Cannot load image file " << fileName << ". "
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"Multi-part file loading is not supported.");
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}
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if (!deep)
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{
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THROW (ArgExc, "Cannot load flat image file " << fileName << " "
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"as a deep image.");
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}
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//XXX TODO: the tiled flag obtained above is unreliable;
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// open the file as a multi-part file and inspect the header.
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// Can the IlmImf library be fixed?
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{
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MultiPartInputFile mpi (fileName.c_str());
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tiled = (mpi.parts() > 0 &&
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mpi.header(0).hasType() &&
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isTiled (mpi.header(0).type()));
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}
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if (tiled)
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loadDeepTiledImage (fileName, hdr, img);
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else
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loadDeepScanLineImage (fileName, hdr, img);
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}
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void
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loadDeepImage
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(const string &fileName,
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DeepImage &img)
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{
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Header hdr;
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loadDeepImage (fileName, hdr, img);
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}
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void
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saveDeepScanLineImage
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(const string &fileName,
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const Header &hdr,
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const DeepImage &img,
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DataWindowSource dws)
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{
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Header newHdr;
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for (Header::ConstIterator i = hdr.begin(); i != hdr.end(); ++i)
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{
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if (strcmp (i.name(), "dataWindow") &&
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strcmp (i.name(), "tiles") &&
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strcmp (i.name(), "channels"))
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{
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newHdr.insert (i.name(), i.attribute());
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}
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}
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newHdr.dataWindow() = dataWindowForFile (hdr, img, dws);
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//XXX TODO: setting the compression to, for example, ZIP_COMPRESSION,
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//then the IlmImf library will save the file, but later it will not be
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//able to read it. Fix the library!
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newHdr.compression() = ZIPS_COMPRESSION;
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const DeepImageLevel &level = img.level();
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DeepFrameBuffer fb;
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fb.insertSampleCountSlice (level.sampleCounts().slice());
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for (DeepImageLevel::ConstIterator i = level.begin(); i != level.end(); ++i)
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{
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newHdr.channels().insert (i.name(), i.channel().channel());
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fb.insert (i.name(), i.channel().slice());
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}
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DeepScanLineOutputFile out (fileName.c_str(), newHdr);
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out.setFrameBuffer (fb);
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out.writePixels (newHdr.dataWindow().max.y - newHdr.dataWindow().min.y + 1);
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}
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void
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saveDeepScanLineImage
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(const string &fileName,
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const DeepImage &img)
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{
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Header hdr;
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hdr.displayWindow() = img.dataWindow();
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saveDeepScanLineImage (fileName, hdr, img);
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}
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void
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loadDeepScanLineImage
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(const string &fileName,
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Header &hdr,
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DeepImage &img)
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{
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DeepScanLineInputFile in (fileName.c_str());
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const ChannelList &cl = in.header().channels();
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img.clearChannels();
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for (ChannelList::ConstIterator i = cl.begin(); i != cl.end(); ++i)
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img.insertChannel (i.name(), i.channel());
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img.resize (in.header().dataWindow(), ONE_LEVEL, ROUND_DOWN);
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DeepImageLevel &level = img.level();
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DeepFrameBuffer fb;
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fb.insertSampleCountSlice (level.sampleCounts().slice());
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for (DeepImageLevel::ConstIterator i = level.begin(); i != level.end(); ++i)
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fb.insert (i.name(), i.channel().slice());
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in.setFrameBuffer (fb);
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{
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SampleCountChannel::Edit edit (level.sampleCounts());
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in.readPixelSampleCounts
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(level.dataWindow().min.y, level.dataWindow().max.y);
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}
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in.readPixels (level.dataWindow().min.y, level.dataWindow().max.y);
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for (Header::ConstIterator i = in.header().begin();
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i != in.header().end();
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++i)
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{
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if (strcmp (i.name(), "tiles"))
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hdr.insert (i.name(), i.attribute());
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}
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}
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void
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loadDeepScanLineImage
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(const string &fileName,
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DeepImage &img)
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{
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Header hdr;
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loadDeepScanLineImage (fileName, hdr, img);
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}
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namespace {
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void
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saveLevel (DeepTiledOutputFile &out, const DeepImage &img, int x, int y)
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{
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const DeepImageLevel &level = img.level (x, y);
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DeepFrameBuffer fb;
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fb.insertSampleCountSlice (level.sampleCounts().slice());
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for (DeepImageLevel::ConstIterator i = level.begin(); i != level.end(); ++i)
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fb.insert (i.name(), i.channel().slice());
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out.setFrameBuffer (fb);
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out.writeTiles (0, out.numXTiles (x) - 1, 0, out.numYTiles (y) - 1, x, y);
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}
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} // namespace
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void
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saveDeepTiledImage
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(const string &fileName,
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const Header &hdr,
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const DeepImage &img,
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DataWindowSource dws)
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{
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Header newHdr;
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for (Header::ConstIterator i = hdr.begin(); i != hdr.end(); ++i)
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{
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if (strcmp (i.name(), "dataWindow") &&
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strcmp (i.name(), "tiles") &&
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strcmp (i.name(), "channels"))
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{
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newHdr.insert (i.name(), i.attribute());
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}
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}
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if (hdr.hasTileDescription())
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{
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newHdr.setTileDescription
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(TileDescription (hdr.tileDescription().xSize,
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hdr.tileDescription().ySize,
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img.levelMode(),
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img.levelRoundingMode()));
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}
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else
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{
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newHdr.setTileDescription
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(TileDescription (64, // xSize
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64, // ySize
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img.levelMode(),
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img.levelRoundingMode()));
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}
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newHdr.dataWindow() = dataWindowForFile (hdr, img, dws);
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//XXX TODO: setting the compression to, for example, ZIP_COMPRESSION,
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//then the IlmImf library will save the file, but later it will not be
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//able to read it. Fix the library!
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newHdr.compression() = ZIPS_COMPRESSION;
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const DeepImageLevel &level = img.level (0, 0);
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for (DeepImageLevel::ConstIterator i = level.begin(); i != level.end(); ++i)
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newHdr.channels().insert (i.name(), i.channel().channel());
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DeepTiledOutputFile out (fileName.c_str(), newHdr);
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switch (img.levelMode())
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{
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case ONE_LEVEL:
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saveLevel (out, img, 0, 0);
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break;
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case MIPMAP_LEVELS:
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for (int x = 0; x < out.numLevels(); ++x)
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saveLevel (out, img, x, x);
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break;
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case RIPMAP_LEVELS:
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for (int y = 0; y < out.numYLevels(); ++y)
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for (int x = 0; x < out.numXLevels(); ++x)
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saveLevel (out, img, x, y);
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break;
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default:
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assert (false);
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}
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}
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void
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saveDeepTiledImage
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(const string &fileName,
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const DeepImage &img)
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{
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Header hdr;
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hdr.displayWindow() = img.dataWindow();
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saveDeepTiledImage (fileName, hdr, img);
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}
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namespace {
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void
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loadLevel (DeepTiledInputFile &in, DeepImage &img, int x, int y)
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{
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DeepImageLevel &level = img.level (x, y);
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DeepFrameBuffer fb;
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fb.insertSampleCountSlice (level.sampleCounts().slice());
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for (DeepImageLevel::ConstIterator i = level.begin(); i != level.end(); ++i)
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fb.insert (i.name(), i.channel().slice());
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in.setFrameBuffer (fb);
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{
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SampleCountChannel::Edit edit (level.sampleCounts());
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in.readPixelSampleCounts
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(0, in.numXTiles (x) - 1, 0, in.numYTiles (y) - 1, x, y);
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}
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in.readTiles (0, in.numXTiles (x) - 1, 0, in.numYTiles (y) - 1, x, y);
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}
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} // namespace
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void
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loadDeepTiledImage
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(const string &fileName,
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Header &hdr,
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DeepImage &img)
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{
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DeepTiledInputFile in (fileName.c_str());
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const ChannelList &cl = in.header().channels();
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img.clearChannels();
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for (ChannelList::ConstIterator i = cl.begin(); i != cl.end(); ++i)
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img.insertChannel (i.name(), i.channel());
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img.resize (in.header().dataWindow(),
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in.header().tileDescription().mode,
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in.header().tileDescription().roundingMode);
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switch (img.levelMode())
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{
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case ONE_LEVEL:
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loadLevel (in, img, 0, 0);
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break;
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case MIPMAP_LEVELS:
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for (int x = 0; x < img.numLevels(); ++x)
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loadLevel (in, img, x, x);
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break;
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case RIPMAP_LEVELS:
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for (int y = 0; y < img.numYLevels(); ++y)
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for (int x = 0; x < img.numXLevels(); ++x)
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loadLevel (in, img, x, y);
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break;
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default:
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assert (false);
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}
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for (Header::ConstIterator i = in.header().begin();
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i != in.header().end();
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++i)
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{
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hdr.insert (i.name(), i.attribute());
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}
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}
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void
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loadDeepTiledImage
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(const string &fileName,
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DeepImage &img)
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{
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Header hdr;
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loadDeepTiledImage (fileName, hdr, img);
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}
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OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT
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