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 49enum TiffCompression 50{ 51 TIFF_UNCOMP = 1, 52 TIFF_HUFFMAN = 2, 53 TIFF_PACKBITS = 32773 54}; 55 56enum TiffByteOrder 57{ 58 TIFF_ORDER_II = 0x4949, 59 TIFF_ORDER_MM = 0x4d4d 60}; 61 62 63enum 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 79enum 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 92class GrFmtTiffReader : public GrFmtReader 93{ 94public: 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 104protected: 105 106 void* m_tif; 107}; 108 109 110#else 111 112class GrFmtTiffReader : public GrFmtReader 113{ 114public: 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 124protected: 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 147class GrFmtTiffWriter : public GrFmtWriter 148{ 149public: 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 ); 156protected: 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 166class GrFmtTiff : public GrFmtFilterFactory 167{ 168public: 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