PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/3rdparty/openexr-1.7.0/ImfRleCompressor.h
00001 
00002 //
00003 // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
00004 // Digital Ltd. LLC
00005 // 
00006 // All rights reserved.
00007 // 
00008 // Redistribution and use in source and binary forms, with or without
00009 // modification, are permitted provided that the following conditions are
00010 // met:
00011 // *       Redistributions of source code must retain the above copyright
00012 // notice, this list of conditions and the following disclaimer.
00013 // *       Redistributions in binary form must reproduce the above
00014 // copyright notice, this list of conditions and the following disclaimer
00015 // in the documentation and/or other materials provided with the
00016 // distribution.
00017 // *       Neither the name of Industrial Light & Magic nor the names of
00018 // its contributors may be used to endorse or promote products derived
00019 // from this software without specific prior written permission. 
00020 // 
00021 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00022 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00023 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00024 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
00025 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00027 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00028 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00029 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00030 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00031 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00032 //
00034 
00035 
00036 
00037 #ifndef INCLUDED_IMF_RLE_COMPRESSOR_H
00038 #define INCLUDED_IMF_RLE_COMPRESSOR_H
00039 
00040 //-----------------------------------------------------------------------------
00041 //
00042 //      class RleCompressor -- performs run-length encoding
00043 //
00044 //-----------------------------------------------------------------------------
00045 
00046 #include <ImfCompressor.h>
00047 
00048 namespace Imf {
00049 
00050 
00051 class RleCompressor: public Compressor
00052 {
00053   public:
00054 
00055     RleCompressor (const Header &hdr, size_t maxScanLineSize);
00056     virtual ~RleCompressor ();
00057 
00058     virtual int numScanLines () const;
00059 
00060     virtual int compress (const char *inPtr,
00061                           int inSize,
00062                           int minY,
00063                           const char *&outPtr);
00064 
00065     virtual int uncompress (const char *inPtr,
00066                             int inSize,
00067                             int minY,
00068                             const char *&outPtr);
00069   private:
00070 
00071     int         _maxScanLineSize;
00072     char *      _tmpBuffer;
00073     char *      _outBuffer;
00074 };
00075 
00076 
00077 } // namespace Imf
00078 
00079 #endif