1 /*M///////////////////////////////////////////////////////////////////////////////////////
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10 // Intel License Agreement
11 // For Open Source Computer Vision Library
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46 #pragma warning( disable: 4514 )
47 #pragma warning( disable: 4711 )
52 #define RBS_BAD_HEADER -125 /* invalid image header */
53 #define BAD_HEADER_ERR() throw RBS_BAD_HEADER
55 // GrFmtReader interface
62 int GetSignatureLength() { return m_sign_len; };
63 const char* GetDescription() { return m_description; };
64 int GetWidth() { return m_width; };
65 int GetHeight() { return m_height; };
67 virtual bool CheckFormat( const char* signature );
68 void SetFile( const char* filename );
70 virtual int GetColor() = 0;
71 virtual bool ReadHeader() = 0;
72 virtual bool ReadData( uchar* data, int step, int color ) = 0;
73 virtual void Close() = 0;
76 int m_width; // width of an image ( filled by ReadHeader )
77 int m_height; // height of an image ( filled by ReadHeader )
78 int m_sign_len; // length of the signature of the format
79 const char* m_signature; // signature of the format
80 const char* m_description; // e.g: Graphics interchange format (*.GIF)
81 char m_filename[1000];
85 typedef struct { int stub; } ListPosition;
87 // list of <GrFmtReader>s
88 class GrFmtReadersList
94 void RemoveAllReaders();
95 void AddReader( GrFmtReader* reader );
96 int ReadersCount() { return m_curReaders; };
97 ListPosition* GetFirstReaderPos();
98 GrFmtReader* GetNextReader( ListPosition*& pos );
99 GrFmtReader* FindReader( const char* filename );
100 int GetFiltersString( char* buffer, int maxlen );
104 GrFmtReader** m_readers;
109 #endif/*_RW_BASE_H_*/