1 /////////////////////////////////////////////////////////////////////////// 2 // 3 // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas 4 // Digital Ltd. LLC 5 // 6 // All rights reserved. 7 // 8 // Redistribution and use in source and binary forms, with or without 9 // modification, are permitted provided that the following conditions are 10 // met: 11 // * Redistributions of source code must retain the above copyright 12 // notice, this list of conditions and the following disclaimer. 13 // * Redistributions in binary form must reproduce the above 14 // copyright notice, this list of conditions and the following disclaimer 15 // in the documentation and/or other materials provided with the 16 // distribution. 17 // * Neither the name of Industrial Light & Magic nor the names of 18 // its contributors may be used to endorse or promote products derived 19 // from this software without specific prior written permission. 20 // 21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 // 33 /////////////////////////////////////////////////////////////////////////// 34 35 36 #ifndef INCLUDED_IMF_PIZ_COMPRESSOR_H 37 #define INCLUDED_IMF_PIZ_COMPRESSOR_H 38 39 //----------------------------------------------------------------------------- 40 // 41 // class PizCompressor -- uses Wavelet and Huffman encoding. 42 // 43 //----------------------------------------------------------------------------- 44 45 #include <ImfCompressor.h> 46 47 namespace Imf { 48 49 class ChannelList; 50 51 52 class PizCompressor: public Compressor 53 { 54 public: 55 56 PizCompressor (const Header &hdr, 57 size_t maxScanLineSize, 58 size_t numScanLines); 59 60 virtual ~PizCompressor (); 61 62 virtual int numScanLines () const; 63 64 virtual Format format () const; 65 66 virtual int compress (const char *inPtr, 67 int inSize, 68 int minY, 69 const char *&outPtr); 70 71 virtual int compressTile (const char *inPtr, 72 int inSize, 73 Imath::Box2i range, 74 const char *&outPtr); 75 76 virtual int uncompress (const char *inPtr, 77 int inSize, 78 int minY, 79 const char *&outPtr); 80 81 virtual int uncompressTile (const char *inPtr, 82 int inSize, 83 Imath::Box2i range, 84 const char *&outPtr); 85 private: 86 87 struct ChannelData; 88 89 int compress (const char *inPtr, 90 int inSize, 91 Imath::Box2i range, 92 const char *&outPtr); 93 94 int uncompress (const char *inPtr, 95 int inSize, 96 Imath::Box2i range, 97 const char *&outPtr); 98 99 int _maxScanLineSize; 100 Format _format; 101 int _numScanLines; 102 unsigned short * _tmpBuffer; 103 char * _outBuffer; 104 int _numChans; 105 const ChannelList & _channels; 106 ChannelData * _channelData; 107 int _minX; 108 int _maxX; 109 int _maxY; 110 }; 111 112 113 } // namespace Imf 114 115 #endif 116
