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42 #ifndef _GRFMT_JASPER_H_
43 #define _GRFMT_JASPER_H_
48 #define JAS_WIN_MSVC_BUILD 1
51 #include <jasper/jasper.h>
55 #include "grfmt_base.h"
58 /* libpng version only */
60 class GrFmtJpeg2000Reader : public GrFmtReader
64 GrFmtJpeg2000Reader( const char* filename );
65 ~GrFmtJpeg2000Reader();
67 bool CheckFormat( const char* signature );
68 bool ReadData( uchar* data, int step, int color );
73 bool ReadComponent8u( uchar *data, jas_matrix_t *buffer, int step, int cmpt,
74 int maxval, int offset, int ncmpts );
75 bool ReadComponent16u( unsigned short *data, jas_matrix_t *buffer, int step, int cmpt,
76 int maxval, int offset, int ncmpts );
78 jas_stream_t *m_stream;
83 class GrFmtJpeg2000Writer : public GrFmtWriter
87 GrFmtJpeg2000Writer( const char* filename );
88 ~GrFmtJpeg2000Writer();
90 bool IsFormatSupported( int depth );
91 bool WriteImage( const uchar* data, int step,
92 int width, int height, int depth, int channels );
94 bool WriteComponent8u( jas_image_t *img, const uchar *data,
95 int step, int ncmpts, int w, int h );
96 bool WriteComponent16u( jas_image_t *img, const unsigned short *data,
97 int step, int ncmpts, int w, int h );
101 // PNG filter factory
102 class GrFmtJpeg2000 : public GrFmtFilterFactory
109 GrFmtReader* NewReader( const char* filename );
110 GrFmtWriter* NewWriter( const char* filename );
115 #endif/*_GRFMT_JASPER_H_*/