1 ///////////////////////////////////////////////////////////////////////////
3 // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
6 // All rights reserved.
8 // Redistribution and use in source and binary forms, with or without
9 // modification, are permitted provided that the following conditions are
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
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.
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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33 ///////////////////////////////////////////////////////////////////////////
37 #ifndef INCLUDED_IMF_HUF_H
38 #define INCLUDED_IMF_HUF_H
41 //-----------------------------------------------------------------------------
43 // 16-bit Huffman compression and decompression:
45 // hufCompress (r, nr, c)
47 // Compresses the contents of array r (of length nr),
48 // stores the compressed data in array c, and returns
49 // the size of the compressed data (in bytes).
51 // To avoid buffer overflows, the size of array c should
52 // be at least 2 * nr + 65536.
54 // hufUncompress (c, nc, r, nr)
56 // Uncompresses the data in array c (with length nc),
57 // and stores the results in array r (with length nr).
59 //-----------------------------------------------------------------------------
65 hufCompress (const unsigned short raw[/*nRaw*/],
67 char compressed[/*2 * nRaw + 65536*/]);
71 hufUncompress (const char compressed[/*nCompressed*/],
73 unsigned short raw[/*nRaw*/],