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25 lines
405 B
C
25 lines
405 B
C
// alpha map の矩形塗りつぶし
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#include <string.h>
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#include "portab.h"
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#include "surface.h"
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#include "ngraph.h"
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#include "ags.h"
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int gr_fill_alpha_map(surface_t *dst, int dx, int dy, int dw, int dh, int lv) {
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BYTE *a;
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if (!gr_clip_xywh(dst, &dx, &dy, &dw, &dh)) {
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return NG;
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}
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a = GETOFFSET_ALPHA(dst, dx, dy);
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while(dh--){
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memset(a, lv, dw);
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a += dst->width;
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}
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return OK;
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}
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