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_ZIP_COMPRESSOR_H
38#define INCLUDED_IMF_ZIP_COMPRESSOR_H
39
40//-----------------------------------------------------------------------------
41//
42//	class ZipCompressor -- performs zlib-style compression
43//
44//-----------------------------------------------------------------------------
45
46#include <ImfCompressor.h>
47
48namespace Imf {
49
50
51class ZipCompressor: public Compressor
52{
53  public:
54
55    ZipCompressor (const Header &hdr,
56                   size_t maxScanLineSize,
57                   size_t numScanLines);
58
59    virtual ~ZipCompressor ();
60
61    virtual int numScanLines () const;
62
63    virtual int	compress (const char *inPtr,
64              int inSize,
65              int minY,
66              const char *&outPtr);
67
68    virtual int	uncompress (const char *inPtr,
69                int inSize,
70                int minY,
71                const char *&outPtr);
72  private:
73
74    int		_maxScanLineSize;
75    int		_numScanLines;
76    char *	_tmpBuffer;
77    char *	_outBuffer;
78};
79
80
81} // namespace Imf
82
83#endif
84