/src/FreeImage/Source/OpenEXR/IlmImf/ImfCompressor.cpp
https://bitbucket.org/cabalistic/ogredeps/ · C++ · 192 lines · 99 code · 55 blank · 38 comment · 3 complexity · 5dc2255bdd2a59f020d7df3f1f98f3d8 MD5 · raw file
- ///////////////////////////////////////////////////////////////////////////
- //
- // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
- // Digital Ltd. LLC
- //
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are
- // met:
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above
- // copyright notice, this list of conditions and the following disclaimer
- // in the documentation and/or other materials provided with the
- // distribution.
- // * Neither the name of Industrial Light & Magic nor the names of
- // its contributors may be used to endorse or promote products derived
- // from this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- //
- ///////////////////////////////////////////////////////////////////////////
- //-----------------------------------------------------------------------------
- //
- // class Compressor
- //
- //-----------------------------------------------------------------------------
- #include <ImfCompressor.h>
- #include <ImfRleCompressor.h>
- #include <ImfZipCompressor.h>
- #include <ImfPizCompressor.h>
- #include <ImfPxr24Compressor.h>
- #include <ImfB44Compressor.h>
- #include <ImfCheckedArithmetic.h>
- namespace Imf {
- using Imath::Box2i;
- Compressor::Compressor (const Header &hdr): _header (hdr) {}
- Compressor::~Compressor () {}
- Compressor::Format
- Compressor::format () const
- {
- return XDR;
- }
- int
- Compressor::compressTile (const char *inPtr,
- int inSize,
- Box2i range,
- const char *&outPtr)
- {
- return compress (inPtr, inSize, range.min.y, outPtr);
- }
-
- int
- Compressor::uncompressTile (const char *inPtr,
- int inSize,
- Box2i range,
- const char *&outPtr)
- {
- return uncompress (inPtr, inSize, range.min.y, outPtr);
- }
- bool
- isValidCompression (Compression c)
- {
- switch (c)
- {
- case NO_COMPRESSION:
- case RLE_COMPRESSION:
- case ZIPS_COMPRESSION:
- case ZIP_COMPRESSION:
- case PIZ_COMPRESSION:
- case PXR24_COMPRESSION:
- case B44_COMPRESSION:
- case B44A_COMPRESSION:
- return true;
- default:
- return false;
- }
- }
- Compressor *
- newCompressor (Compression c, size_t maxScanLineSize, const Header &hdr)
- {
- switch (c)
- {
- case RLE_COMPRESSION:
- return new RleCompressor (hdr, maxScanLineSize);
- case ZIPS_COMPRESSION:
- return new ZipCompressor (hdr, maxScanLineSize, 1);
- case ZIP_COMPRESSION:
- return new ZipCompressor (hdr, maxScanLineSize, 16);
- case PIZ_COMPRESSION:
- return new PizCompressor (hdr, maxScanLineSize, 32);
- case PXR24_COMPRESSION:
- return new Pxr24Compressor (hdr, maxScanLineSize, 16);
- case B44_COMPRESSION:
- return new B44Compressor (hdr, maxScanLineSize, 32, false);
- case B44A_COMPRESSION:
- return new B44Compressor (hdr, maxScanLineSize, 32, true);
- default:
- return 0;
- }
- }
- Compressor *
- newTileCompressor (Compression c,
- size_t tileLineSize,
- size_t numTileLines,
- const Header &hdr)
- {
- switch (c)
- {
- case RLE_COMPRESSION:
- return new RleCompressor (hdr, uiMult (tileLineSize, numTileLines));
- case ZIPS_COMPRESSION:
- case ZIP_COMPRESSION:
- return new ZipCompressor (hdr, tileLineSize, numTileLines);
- case PIZ_COMPRESSION:
- return new PizCompressor (hdr, tileLineSize, numTileLines);
- case PXR24_COMPRESSION:
- return new Pxr24Compressor (hdr, tileLineSize, numTileLines);
- case B44_COMPRESSION:
- return new B44Compressor (hdr, tileLineSize, numTileLines, false);
- case B44A_COMPRESSION:
- return new B44Compressor (hdr, tileLineSize, numTileLines, true);
- default:
- return 0;
- }
- }
- } // namespace Imf