PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/3rdparty/openexr-1.7.0/ImfHuf.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_HUF_H
00038 #define INCLUDED_IMF_HUF_H
00039 
00040 
00041 //-----------------------------------------------------------------------------
00042 //
00043 //      16-bit Huffman compression and decompression:
00044 //
00045 //      hufCompress (r, nr, c)
00046 //
00047 //              Compresses the contents of array r (of length nr),
00048 //              stores the compressed data in array c, and returns
00049 //              the size of the compressed data (in bytes).
00050 //
00051 //              To avoid buffer overflows, the size of array c should
00052 //              be at least 2 * nr + 65536.
00053 //
00054 //      hufUncompress (c, nc, r, nr)
00055 //
00056 //              Uncompresses the data in array c (with length nc),
00057 //              and stores the results in array r (with length nr).
00058 //
00059 //-----------------------------------------------------------------------------
00060 
00061 namespace Imf {
00062 
00063 
00064 int
00065 hufCompress (const unsigned short raw[/*nRaw*/],
00066              int nRaw,
00067              char compressed[/*2 * nRaw + 65536*/]);
00068 
00069 
00070 void
00071 hufUncompress (const char compressed[/*nCompressed*/],
00072                int nCompressed,
00073                unsigned short raw[/*nRaw*/],
00074                int nRaw);
00075 
00076 
00077 } // namespace Imf
00078 
00079 #endif