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/src/FreeImage/Source/OpenEXR/IlmImf/ImfHuf.h

https://bitbucket.org/cabalistic/ogredeps/
C++ Header | 79 lines | 14 code | 13 blank | 52 comment | 0 complexity | d19ecaa5e0e4a5ecc8df2c7d2fb18651 MD5 | raw file
 1///////////////////////////////////////////////////////////////////////////
 2//
 3// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
 4// Digital Ltd. LLC
 5// 
 6// All rights reserved.
 7// 
 8// Redistribution and use in source and binary forms, with or without
 9// modification, are permitted provided that the following conditions are
10// met:
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
16// distribution.
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. 
20// 
21// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32//
33///////////////////////////////////////////////////////////////////////////
34
35
36
37#ifndef INCLUDED_IMF_HUF_H
38#define INCLUDED_IMF_HUF_H
39
40
41//-----------------------------------------------------------------------------
42//
43//	16-bit Huffman compression and decompression:
44//
45//	hufCompress (r, nr, c)
46//
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).
50//
51//		To avoid buffer overflows, the size of array c should
52//		be at least 2 * nr + 65536.
53//
54//	hufUncompress (c, nc, r, nr)
55//
56//		Uncompresses the data in array c (with length nc),
57//		and stores the results in array r (with length nr).
58//
59//-----------------------------------------------------------------------------
60
61namespace Imf {
62
63
64int
65hufCompress (const unsigned short raw[/*nRaw*/],
66	     int nRaw,
67	     char compressed[/*2 * nRaw + 65536*/]);
68
69
70void
71hufUncompress (const char compressed[/*nCompressed*/],
72	       int nCompressed,
73	       unsigned short raw[/*nRaw*/],
74	       int nRaw);
75
76
77} // namespace Imf
78
79#endif