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void gr_fill_alpha_overborder(surface_t *dst, int dx, int dy, int dw, int dh, int s, int d) {
BYTE *dp;
int x, y;
if (dst == NULL) return;
if (!gr_clip_xywh(dst, &dx, &dy, &dw, &dh)) return;
dp = GETOFFSET_ALPHA(dst, dx, dy);
if (dp == NULL) return;
for (y = 0; y < dh; y++) {
for (x = 0; x < dw; x++) {
if (*(dp + x) >= (BYTE)s) *(dp + x) = (BYTE)d;
}
dp += dst->width;
}
}
void gr_fill_alpha_underborder(surface_t *dst, int dx, int dy, int dw, int dh, int s, int d) {
BYTE *dp;
int x, y;
if (dst == NULL) return;
if (!gr_clip_xywh(dst, &dx, &dy, &dw, &dh)) return;
dp = GETOFFSET_ALPHA(dst, dx, dy);
if (dp == NULL) return;
for (y = 0; y < dh; y++) {
for (x = 0; x < dw; x++) {
if (*(dp + x) <= (BYTE)s) *(dp + x) = (BYTE)d;
}
dp += dst->width;
}
}
void gr_copy_alpha_map_sprite(surface_t *dst, int dx, int dy, surface_t *src, int sx, int sy, int sw, int sh, int cl) {
BYTE *sp, *dp;
int x, y;
if (!gr_clip(src, &sx, &sy, &sw, &sh, dst, &dx, &dy)) return;
sp = GETOFFSET_ALPHA(src, sx, sy);
dp = GETOFFSET_ALPHA(dst, dx, dy);
if (src == dst) {
if (sy <= dy && dy < (sy + sh)) {
sp += (sh -1) * src->width;
dp += (sh -1) * dst->width;
for (y = 0; y < sh; y++) {
for (x = 0; x < sw; x++) {
if (*(sp + x) != cl) *(dp + x) = *(sp + x);
}
sp -= src->width;
dp -= dst->width;
}
} else {
for (y = 0; y < sh; y++) {
for (x = 0; x < sw; x++) {
if (*(sp + x) != cl) *(dp + x) = *(sp + x);
}
sp += src->width;
dp += dst->width;
}
}
} else {
for (y = 0; y < sh; y++) {
for (x = 0; x < sw; x++) {
if (*(sp + x) != cl) *(dp + x) = *(sp + x);
}
sp += src->width;
dp += dst->width;
}
}
}
void gr_blend_alpha_wds_stretch2x2(surface_t *src1, int sx1, int sy1, surface_t *src2, int sx2, int sy2, int sw, int sh, surface_t *dst, int dx, int dy) {
surface_t *t = sf_create_surface(sw * 2, sh * 2, dst->depth);
gr_copy_stretch(t, 0, 0, sw * 2, sh * 2, src2, sx2, sy2, sw, sh);
gr_blend_alpha_wds(t, 0, 0, src1, sx1, sy1, sw * 2, sh * 2, dst, dx, dy);
sf_free(t);
}
void gr_blend_alpha_wds(surface_t *src1, int sx1, int sy1, surface_t *src2, int sx2, int sy2, int sw, int sh, surface_t *dst, int dx, int dy) {
int x, y;
BYTE *sp1, *sp2, *dp, *sa;
sp1 = GETOFFSET_PIXEL(src1, sx1, sy1);
sp2 = GETOFFSET_PIXEL(src2, sx2, sy2);
sa = GETOFFSET_ALPHA(src1, sx1, sy1);
dp = GETOFFSET_PIXEL(dst, dx, dy);
switch(dst->depth) {
case 15:
{
WORD *yls1, *yls2, *yld;
BYTE *yla;
for (y = 0; y < sh; y++) {
yls1 = (WORD *)(sp1 + y * src1->bytes_per_line);
yls2 = (WORD *)(sp2 + y * src2->bytes_per_line);
yld = (WORD *)(dp + y * dst->bytes_per_line);
yla = (BYTE *)(sa + y * src1->width);
for (x = 0; x < sw; x++) {
*yld = SUTURADD15(*yls1, ALPHABLEND15(*yls1, *yls2, *yla));
yls1++; yls2++; yld++; yla++;
}
}
break;
}
case 16:
// if (nact->mmx_is_ok) {
if (0) {
#ifdef ENABLE_MMX
ablend16_wds_pppp(dp, sp1, sp2, sa, sw, sh,
dst->bytes_per_line,
src1->bytes_per_line,
src2->bytes_per_line,
src1->width);
#endif
} else {
WORD *yls1, *yls2, *yld;
BYTE *yla;
for (y = 0; y < sh; y++) {
yls1 = (WORD *)(sp1 + y * src1->bytes_per_line);
yls2 = (WORD *)(sp2 + y * src2->bytes_per_line);
yld = (WORD *)(dp + y * dst->bytes_per_line);
yla = (BYTE *)(sa + y * src1->width);
for (x = 0; x < sw; x++) {
*yld = SUTURADD16(*yls1, ALPHABLEND16(*yls1, *yls2, *yla));
//*yld = SUTURADD16(*yls1, ALPHALEVEL16(*yls2, *yla));
yls1++; yls2++; yld++; yla++;
}
}
}
break;
case 24:
case 32:
{
DWORD *yls1, *yls2, *yld;
BYTE *yla;
for (y = 0; y < sh; y++) {
yls1 = (DWORD *)(sp1 + y * src1->bytes_per_line);
yls2 = (DWORD *)(sp2 + y * src2->bytes_per_line);
yld = (DWORD *)(dp + y * dst->bytes_per_line);
yla = (BYTE *)(sa + y * src1->width);
for (x = 0; x < sw; x++) {
*yld = SUTURADD24(*yls1, ALPHABLEND24(*yls1, *yls2, *yla));
yls1++; yls2++; yld++; yla++;
}
}
break;
}
}
}
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