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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:
18 //
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.
28 //
29 // This software is provided by the copyright holders and contributors "as is" and
30 // any express or implied warranties, including, but not limited to, the implied
31 // warranties of merchantability and fitness for a particular purpose are disclaimed.
32 // In no event shall the Intel Corporation or contributors be liable for any direct,
33 // indirect, incidental, special, exemplary, or consequential damages
34 // (including, but not limited to, procurement of substitute goods or services;
35 // loss of use, data, or profits; or business interruption) however caused
36 // and on any theory of liability, whether in contract, strict liability,
37 // or tort (including negligence or otherwise) arising in any way out of
38 // the use of this software, even if advised of the possibility of such damage.
39 //
40 //M*/
41 
42 #ifndef _GRFMT_TIFF_H_
43 #define _GRFMT_TIFF_H_
44 
45 #include "grfmt_base.h"
46 
47 
48 // native simple TIFF codec
49 enum TiffCompression
50 {
51     TIFF_UNCOMP = 1,
52     TIFF_HUFFMAN = 2,
53     TIFF_PACKBITS = 32773
54 };
55 
56 enum TiffByteOrder
57 {
58     TIFF_ORDER_II = 0x4949,
59     TIFF_ORDER_MM = 0x4d4d
60 };
61 
62 
63 enum  TiffTag
64 {
65     TIFF_TAG_WIDTH  = 256,
66     TIFF_TAG_HEIGHT = 257,
67     TIFF_TAG_BITS_PER_SAMPLE = 258,
68     TIFF_TAG_COMPRESSION = 259,
69     TIFF_TAG_PHOTOMETRIC = 262,
70     TIFF_TAG_STRIP_OFFSETS = 273,
71     TIFF_TAG_STRIP_COUNTS = 279,
72     TIFF_TAG_SAMPLES_PER_PIXEL = 277,
73     TIFF_TAG_ROWS_PER_STRIP = 278,
74     TIFF_TAG_PLANAR_CONFIG = 284,
75     TIFF_TAG_COLOR_MAP = 320
76 };
77 
78 
79 enum TiffFieldType
80 {
81     TIFF_TYPE_BYTE = 1,
82     TIFF_TYPE_SHORT = 3,
83     TIFF_TYPE_LONG = 4
84 };
85 
86 
87 
88 #ifdef HAVE_TIFF
89 
90 // libtiff based TIFF codec
91 
92 class GrFmtTiffReader : public GrFmtReader
93 {
94 public:
95 
96     GrFmtTiffReader( const char* filename );
97     ~GrFmtTiffReader();
98 
99     bool  CheckFormat( const char* signature );
100     bool  ReadData( uchar* data, int step, int color );
101     bool  ReadHeader();
102     void  Close();
103 
104 protected:
105 
106     void* m_tif;
107 };
108 
109 
110 #else
111 
112 class GrFmtTiffReader : public GrFmtReader
113 {
114 public:
115 
116     GrFmtTiffReader( const char* filename );
117     ~GrFmtTiffReader();
118 
119     bool  CheckFormat( const char* signature );
120     bool  ReadData( uchar* data, int step, int color );
121     bool  ReadHeader();
122     void  Close();
123 
124 protected:
125 
126     RLByteStream     m_strm;
127     PaletteEntry     m_palette[256];
128     int              m_bpp;
129     int*             m_temp_palette;
130     int              m_max_pal_length;
131     int*             m_offsets;
132     int              m_maxoffsets;
133     int              m_strips;
134     int              m_rows_per_strip;
135     TiffCompression  m_compression;
136     TiffByteOrder    m_byteorder;
137 
138     int  GetWordEx();
139     int  GetDWordEx();
140     int  ReadTable( int offset, int count, TiffFieldType fieldtype,
141                     int*& array, int& arraysize );
142 };
143 
144 #endif
145 
146 // ... and writer
147 class GrFmtTiffWriter : public GrFmtWriter
148 {
149 public:
150 
151     GrFmtTiffWriter( const char* filename );
152     ~GrFmtTiffWriter();
153 
154     bool  WriteImage( const uchar* data, int step,
155                       int width, int height, int depth, int channels );
156 protected:
157 
158     WLByteStream  m_strm;
159 
160     void  WriteTag( TiffTag tag, TiffFieldType fieldType,
161                     int count, int value );
162 };
163 
164 
165 // TIFF filter factory
166 class GrFmtTiff : public GrFmtFilterFactory
167 {
168 public:
169 
170     GrFmtTiff();
171     ~GrFmtTiff();
172 
173     GrFmtReader* NewReader( const char* filename );
174     GrFmtWriter* NewWriter( const char* filename );
175     bool CheckSignature( const char* signature );
176 };
177 
178 #endif/*_GRFMT_TIFF_H_*/
179