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- typedef struct _TIFFImageIter TIFFImageIter;
- /* The callback function is called for each "block" of image pixel data after
- it has been read from the file and decoded. This image pixel data is in the
- buffer pp, and this data represents the image pixels from (x,y) to
- (x+w,y+h). It is stored in pixel format, so each pixel contains
- img->samplesperpixel consecutive samples each containing img->bitspersample
- bits of data. The array pp is ordered in h consecutive rows of w+fromskew
- pixels each. */
- typedef void (*ImageIterTileContigRoutine)
- (TIFFImageIter*, void *, uint32, uint32, uint32, uint32, int32,
- unsigned char*);
- #define DECLAREContigCallbackFunc(name) \
- static void name(\
- TIFFImageIter* img, \
- void* user_data, \
- uint32 x, uint32 y, \
- uint32 w, uint32 h, \
- int32 fromskew, \
- u_char* pp \
- )
- typedef void (*ImageIterTileSeparateRoutine)
- (TIFFImageIter*, void *, uint32, uint32, uint32, uint32, int32,
- unsigned char*, unsigned char*, unsigned char*, unsigned char*);
- #define DECLARESepCallbackFunc(name) \
- static void name(\
- TIFFImageIter* img, \
- void* user_data, \
- uint32 x, uint32 y, \
- uint32 w, uint32 h,\
- int32 fromskew, \
- u_char* r, u_char* g, u_char* b, u_char* a\
- )
- struct _TIFFImageIter {
- TIFF* tif; /* image handle */
- int stoponerr; /* stop on read error */
- int isContig; /* data is packed/separate */
- int alpha; /* type of alpha data present */
- uint32 width; /* image width */
- uint32 height; /* image height */
- uint16 bitspersample; /* image bits/sample */
- uint16 samplesperpixel; /* image samples/pixel */
- uint16 orientation; /* image orientation */
- uint16 photometric; /* image photometric interp */
- uint16* redcmap; /* colormap pallete */
- uint16* greencmap;
- uint16* bluecmap;
- /* get image data routine */
- int (*get)(TIFFImageIter*, void *udata, uint32, uint32);
- union {
- void (*any)(TIFFImageIter*);
- ImageIterTileContigRoutine contig;
- ImageIterTileSeparateRoutine separate;
- } callback; /* fn to exec for each block */
- };
- /*
- * Local Variables:
- * mode: c
- * c-basic-offset: 8
- * fill-column: 78
- * End:
- */
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