| /////////////////////////////////////////////////////////////////////////// |
| // |
| // 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> |
| |
| 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, int 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, |
| int tileLineSize, |
| int numTileLines, |
| const Header &hdr) |
| { |
| switch (c) |
| { |
| case RLE_COMPRESSION: |
| |
| return new RleCompressor (hdr, 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 |