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graphics: bilinear filter needs some serious speed improvement

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This commit is contained in:
K. Lange 2018-12-01 17:36:07 +09:00
parent 27bf6f15d8
commit 6d8c1f8d7a
1 changed files with 3 additions and 3 deletions
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6
lib/graphics.c
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@ -670,10 +670,10 @@ uint32_t getBilinearFilteredPixelColor(sprite_t * tex, double u, double v) {
double v_o = 1 - v_ratio;
double r_ALP = 255;
if (tex->alpha == ALPHA_MASK) {
if (x == tex->width - 1 || y == tex->height - 1) return (SPRITE(tex,x,y) | 0xFF000000) & (0xFFFFFF + _RED(SMASKS(tex,x,y)) * 0x1000000);
if (x == tex->width - 1 || y == tex->height - 1) return (SPRITE(tex,x,y) | 0xFF000000) & (0xFFFFFF + ((uint32_t)_RED(SMASKS(tex,x,y)) << 24));
r_ALP = (_RED(SMASKS(tex,x,y)) * u_o + _RED(SMASKS(tex,x+1,y)) * u_ratio) * v_o + (_RED(SMASKS(tex,x,y+1)) * u_o + _RED(SMASKS(tex,x+1,y+1)) * u_ratio) * v_ratio;
} else if (tex->alpha == ALPHA_EMBEDDED) {
if (x == tex->width - 1 || y == tex->height - 1) return (SPRITE(tex,x,y) | 0xFF000000) & (0xFFFFFF + _ALP(SPRITE(tex,x,y)) * 0x1000000);
if (x == tex->width - 1 || y == tex->height - 1) return (SPRITE(tex,x,y) | 0xFF000000) & (0xFFFFFF + ((uint32_t)_ALP(SPRITE(tex,x,y)) << 24));
r_ALP = (_ALP(SPRITE(tex,x,y)) * u_o + _ALP(SPRITE(tex,x+1,y)) * u_ratio) * v_o + (_ALP(SPRITE(tex,x,y+1)) * u_o + _ALP(SPRITE(tex,x+1,y+1)) * u_ratio) * v_ratio;
}
if (x == tex->width - 1 || y == tex->height - 1) return SPRITE(tex,x,y);
@ -681,7 +681,7 @@ uint32_t getBilinearFilteredPixelColor(sprite_t * tex, double u, double v) {
double r_BLU = (_BLU(SPRITE(tex,x,y)) * u_o + _BLU(SPRITE(tex,x+1,y)) * u_ratio) * v_o + (_BLU(SPRITE(tex,x,y+1)) * u_o + _BLU(SPRITE(tex,x+1,y+1)) * u_ratio) * v_ratio;
double r_GRE = (_GRE(SPRITE(tex,x,y)) * u_o + _GRE(SPRITE(tex,x+1,y)) * u_ratio) * v_o + (_GRE(SPRITE(tex,x,y+1)) * u_o + _GRE(SPRITE(tex,x+1,y+1)) * u_ratio) * v_ratio;
return rgb(r_RED,r_GRE,r_BLU) & (0xFFFFFF + (int)r_ALP * 0x1000000);
return rgb(r_RED,r_GRE,r_BLU) & (0xFFFFFF + ((uint32_t)r_ALP << 24));
}
void draw_sprite_scaled(gfx_context_t * ctx, sprite_t * sprite, int32_t x, int32_t y, uint16_t width, uint16_t height) {