1#ifndef INCLUDED_IMF_PXR24_COMPRESSOR_H 2#define INCLUDED_IMF_PXR24_COMPRESSOR_H 3 4///////////////////////////////////////////////////////////////////////////// 5// 6// Copyright (c) 2004, Pixar Animation Studios 7// 8// All rights reserved. 9// 10// Redistribution and use in source and binary forms, with or without 11// modification, are permitted provided that the following conditions are 12// met: 13// * Redistributions of source code must retain the above copyright 14// notice, this list of conditions and the following disclaimer. 15// * Redistributions in binary form must reproduce the above 16// copyright notice, this list of conditions and the following disclaimer 17// in the documentation and/or other materials provided with the 18// distribution. 19// * Neither the name of Pixar Animation Studios nor the names of 20// its contributors may be used to endorse or promote products derived 21// from this software without specific prior written permission. 22// 23// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 26// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 29// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 33// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34// 35///////////////////////////////////////////////////////////////////////////// 36 37//----------------------------------------------------------------------------- 38// 39// class Pxr24Compressor -- Loren Carpenter's 24-bit float compressor 40// 41//----------------------------------------------------------------------------- 42 43#include <ImfCompressor.h> 44 45namespace Imf { 46 47class ChannelList; 48 49 50class Pxr24Compressor: public Compressor 51{ 52 public: 53 54 Pxr24Compressor (const Header &hdr, int maxScanLineSize, int numScanLines); 55 virtual ~Pxr24Compressor (); 56 57 virtual int numScanLines () const; 58 59 virtual Format format () const; 60 61 virtual int compress (const char *inPtr, 62 int inSize, 63 int minY, 64 const char *&outPtr); 65 66 virtual int compressTile (const char *inPtr, 67 int inSize, 68 Imath::Box2i range, 69 const char *&outPtr); 70 71 virtual int uncompress (const char *inPtr, 72 int inSize, 73 int minY, 74 const char *&outPtr); 75 76 virtual int uncompressTile (const char *inPtr, 77 int inSize, 78 Imath::Box2i range, 79 const char *&outPtr); 80 private: 81 82 int compress (const char *inPtr, 83 int inSize, 84 Imath::Box2i range, 85 const char *&outPtr); 86 87 int uncompress (const char *inPtr, 88 int inSize, 89 Imath::Box2i range, 90 const char *&outPtr); 91 92 int _maxScanLineSize; 93 int _numScanLines; 94 unsigned char * _tmpBuffer; 95 char * _outBuffer; 96 const ChannelList & _channels; 97 int _minX; 98 int _maxX; 99 int _maxY; 100}; 101 102 103} // namespace Imf 104 105#endif 106