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42 #ifndef _GRFMT_TIFF_H_
43 #define _GRFMT_TIFF_H_
45 #include "grfmt_base.h"
48 // native simple TIFF codec
58 TIFF_ORDER_II = 0x4949,
59 TIFF_ORDER_MM = 0x4d4d
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
90 // libtiff based TIFF codec
92 class GrFmtTiffReader : public GrFmtReader
96 GrFmtTiffReader( const char* filename );
99 bool CheckFormat( const char* signature );
100 bool ReadData( uchar* data, int step, int color );
112 class GrFmtTiffReader : public GrFmtReader
116 GrFmtTiffReader( const char* filename );
119 bool CheckFormat( const char* signature );
120 bool ReadData( uchar* data, int step, int color );
127 PaletteEntry m_palette[256];
130 int m_max_pal_length;
134 int m_rows_per_strip;
135 TiffCompression m_compression;
136 TiffByteOrder m_byteorder;
140 int ReadTable( int offset, int count, TiffFieldType fieldtype,
141 int*& array, int& arraysize );
147 class GrFmtTiffWriter : public GrFmtWriter
151 GrFmtTiffWriter( const char* filename );
154 bool WriteImage( const uchar* data, int step,
155 int width, int height, int depth, int channels );
160 void WriteTag( TiffTag tag, TiffFieldType fieldType,
161 int count, int value );
165 // TIFF filter factory
166 class GrFmtTiff : public GrFmtFilterFactory
173 GrFmtReader* NewReader( const char* filename );
174 GrFmtWriter* NewWriter( const char* filename );
175 bool CheckSignature( const char* signature );
178 #endif/*_GRFMT_TIFF_H_*/