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25 lines
459 B
C
25 lines
459 B
C
// 8bit surface (or data列)から surface の alpha map へコピー
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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_draw_amap(surface_t *dst, int dx, int dy, BYTE *src, int width, int height, int scanline) {
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int y;
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BYTE *sp, *dp;
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sp = src;
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dp = GETOFFSET_ALPHA(dst, dx, dy);
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for (y = 0; y < height; y++) {
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memcpy(dp, sp, width);
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sp += scanline;
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dp += dst->width;
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}
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return OK;
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}
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