1 /* $Id: ibitblt.h,v 1.3 2004-08-28 23:17:45 schaffner Exp $ */
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17 * Prototypes for the ibitblt functions.
24 // Finds location/size of the largest "hole" in bitmap mask_bmp
25 void gr_ibitblt_find_hole_size ( grs_bitmap * mask_bmp, int *minx, int *miny, int *maxx, int *maxy );
27 // Creates a code mask that will copy data from a bitmap that is sw by
28 // sh starting from location sx, sy with a rowsize of srowsize onto
29 // another bitmap but only copies into pixel locations that are
30 // defined as transparent in bitmap bmp.
33 ubyte * gr_ibitblt_create_mask(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
34 ubyte * gr_ibitblt_create_mask_svga(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
35 ubyte * gr_ibitblt_create_mask_pa( grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
37 void gr_ibitblt_create_mask_pa(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
38 void gr_ibitblt_create_mask(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
41 // Copy source bitmap onto destination bitmap, not copying pixels that
42 // are defined transparent by the mask
45 void gr_ibitblt(grs_bitmap *source_bmp, grs_bitmap *dest_bmp, ubyte *mask);
47 void gr_ibitblt(grs_bitmap *source_bmp, grs_bitmap *dest_bmp, ubyte pixel_double);