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29 lines
524 B
C++
29 lines
524 B
C++
#include "tifffile.h"
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#define TIFF_II 0x4949
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#define TIFF_MM 0x4D4D
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#define TIFF_MAGIC 42
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TIFFFile::TIFFFile(QIODevice *device) : _device(device), _ifd(0), _offset(0)
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{
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quint16 endian, magic;
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_offset = _device->pos();
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if (_device->read((char*)&endian, sizeof(endian)) < (qint64)sizeof(endian))
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return;
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if (endian == TIFF_II)
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_be = false;
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else if (endian == TIFF_MM)
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_be = true;
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else
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return;
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if (!readValue(magic))
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return;
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if (magic != TIFF_MAGIC)
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return;
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if (!readValue(_ifd))
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return;
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}
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