63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
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// tiff stream interface class definition
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#ifndef _TIFF_STREAM_H_
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#define _TIFF_STREAM_H_
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#include <iostream.h>
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#include "tiffio.h"
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class TiffStream {
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public:
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// ctor/dtor
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TiffStream();
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~TiffStream();
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public:
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enum SeekDir {
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beg,
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cur,
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end,
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};
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public:
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// factory methods
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TIFF* makeFileStream(iostream* str);
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TIFF* makeFileStream(istream* str);
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TIFF* makeFileStream(ostream* str);
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public:
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// tiff client methods
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static tsize_t read(thandle_t fd, tdata_t buf, tsize_t size);
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static tsize_t write(thandle_t fd, tdata_t buf, tsize_t size);
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static toff_t seek(thandle_t fd, toff_t offset, int origin);
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static toff_t size(thandle_t fd);
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static int close(thandle_t fd);
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static int map(thandle_t fd, tdata_t* phase, toff_t* psize);
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static void unmap(thandle_t fd, tdata_t base, tsize_t size);
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public:
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// query method
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TIFF* getTiffHandle() const { return m_tif; }
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unsigned int getStreamLength() { return m_streamLength; }
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private:
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// internal methods
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unsigned int getSize(thandle_t fd);
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unsigned int tell(thandle_t fd);
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bool seekInt(thandle_t fd, unsigned int offset, int origin);
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bool isOpen(thandle_t fd);
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private:
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thandle_t m_this;
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TIFF* m_tif;
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static const char* m_name;
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istream* m_inStream;
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ostream* m_outStream;
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iostream* m_ioStream;
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int m_streamLength;
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};
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#endif // _TIFF_STREAM_H_
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