PBRT
|
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