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 #include "ImfNamespace.h" 47 #include "ImfExport.h" 48 #include "ImfForward.h" 49 50 51 OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER 52 53 54 class IMF_EXPORT PizCompressor: public Compressor 55 { 56 public: 57 58 PizCompressor (const Header &hdr, 59 size_t maxScanLineSize, 60 size_t numScanLines); 61 62 virtual ~PizCompressor (); 63 64 virtual int numScanLines () const; 65 66 virtual Format format () const; 67 68 virtual int compress (const char *inPtr, 69 int inSize, 70 int minY, 71 const char *&outPtr); 72 73 virtual int compressTile (const char *inPtr, 74 int inSize, 75 IMATH_NAMESPACE::Box2i range, 76 const char *&outPtr); 77 78 virtual int uncompress (const char *inPtr, 79 int inSize, 80 int minY, 81 const char *&outPtr); 82 83 virtual int uncompressTile (const char *inPtr, 84 int inSize, 85 IMATH_NAMESPACE::Box2i range, 86 const char *&outPtr); 87 private: 88 89 struct ChannelData; 90 91 int compress (const char *inPtr, 92 int inSize, 93 IMATH_NAMESPACE::Box2i range, 94 const char *&outPtr); 95 96 int uncompress (const char *inPtr, 97 int inSize, 98 IMATH_NAMESPACE::Box2i range, 99 const char *&outPtr); 100 101 int _maxScanLineSize; 102 Format _format; 103 int _numScanLines; 104 unsigned short * _tmpBuffer; 105 char * _outBuffer; 106 int _numChans; 107 const ChannelList & _channels; 108 ChannelData * _channelData; 109 int _minX; 110 int _maxX; 111 int _maxY; 112 }; 113 114 115 OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT 116 117 #endif 118