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graphics: Match nearest-neighbor signature to bilinear for easier swapping

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This commit is contained in:
K. Lange 2021-07-14 10:57:12 +09:00
parent fa969a7f0a
commit 3176b6147d
1 changed files with 4 additions and 6 deletions
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10
lib/graphics.c
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@ -760,6 +760,7 @@ static inline int out_of_bounds(const sprite_t * tex, int x, int y) {
/**
* @brief Use bilinear interpolation to get a blended color at the point u,v
*/
#if 1
static uint32_t gfx_bilinear_interpolation(const sprite_t * tex, double u, double v) {
int x = floor(u);
int y = floor(v);
@ -778,12 +779,9 @@ static uint32_t gfx_bilinear_interpolation(const sprite_t * tex, double u, doubl
int r_GRE = (_GRE(ul) * u_o + _GRE(ur) * u_ratio) * v_o + (_GRE(ll) * u_o + _GRE(lr) * u_ratio) * v_ratio;
return rgba(r_RED,r_GRE,r_BLU,r_ALP);
}
#if 0
static uint32_t gfx_fast_transform(const sprite_t * sprite, int32_t u, int32_t v) {
if (u < 0 || v < 0) return 0;
if (u >= sprite->width || v >= sprite->height) return 0;
return SPRITE(sprite,u,v);
#else
static uint32_t gfx_bilinear_interpolation(const sprite_t * tex, double u, double v) {
return out_of_bounds(tex,u,v) ? 0 : SPRITE(tex,(unsigned int)u,(unsigned int)v);
}
#endif