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
