1/*M///////////////////////////////////////////////////////////////////////////////////////
2//
3//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
4//
5//  By downloading, copying, installing or using the software you agree to this license.
6//  If you do not agree to this license, do not download, install,
7//  copy or use the software.
8//
9//
10//                        Intel License Agreement
11//                For Open Source Computer Vision Library
12//
13// Copyright (C) 2000, Intel Corporation, all rights reserved.
14// Third party copyrights are property of their respective owners.
15//
16// Redistribution and use in source and binary forms, with or without modification,
17// are permitted provided that the following conditions are met:
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19//   * Redistribution's of source code must retain the above copyright notice,
20//     this list of conditions and the following disclaimer.
21//
22//   * Redistribution's in binary form must reproduce the above copyright notice,
23//     this list of conditions and the following disclaimer in the documentation
24//     and/or other materials provided with the distribution.
25//
26//   * The name of Intel Corporation may not be used to endorse or promote products
27//     derived from this software without specific prior written permission.
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32// In no event shall the Intel Corporation or contributors be liable for any direct,
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40//M*/
41
42#ifndef _GRFMT_PxM_H_
43#define _GRFMT_PxM_H_
44
45#include "grfmt_base.h"
46#include "bitstrm.h"
47
48
49class GrFmtPxMReader : public GrFmtReader
50{
51public:
52
53    GrFmtPxMReader( const char* filename );
54    ~GrFmtPxMReader();
55
56    bool  CheckFormat( const char* signature );
57    bool  ReadData( uchar* data, int step, int color );
58    bool  ReadHeader();
59    void  Close();
60
61protected:
62
63    RLByteStream    m_strm;
64    PaletteEntry    m_palette[256];
65    int             m_bpp;
66    int             m_offset;
67    bool            m_binary;
68    int             m_maxval;
69};
70
71
72class GrFmtPxMWriter : public GrFmtWriter
73{
74public:
75
76    GrFmtPxMWriter( const char* filename );
77    ~GrFmtPxMWriter();
78
79    bool  IsFormatSupported( int depth );
80
81    bool  WriteImage( const uchar* data, int step,
82                      int width, int height, int depth, int channels );
83protected:
84
85    WLByteStream  m_strm;
86};
87
88
89// PxM filter factory
90class GrFmtPxM : public GrFmtFilterFactory
91{
92public:
93
94    GrFmtPxM();
95    ~GrFmtPxM();
96
97    GrFmtReader* NewReader( const char* filename );
98    GrFmtWriter* NewWriter( const char* filename );
99    bool CheckSignature( const char* signature );
100};
101
102
103#endif/*_GRFMT_PxM_H_*/
104