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fix for UYVY422 twiddled texture regression

This commit is contained in:
Anthony Pesch 2017-10-23 00:57:11 -04:00
parent f08db8afd3
commit 1aa0dbf980
1 changed files with 16 additions and 16 deletions
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32
src/guest/pvr/tex.c
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@ -134,45 +134,45 @@ typedef uint16_t UYVY422_type;
static inline uint8_t yuv_to_r(int y, int u, int v) {
int r = y + (11 * v) / 8;
return MAX(0, MIN(255, r));
return CLAMP(r, 0, 255);
}
static inline uint8_t yuv_to_g(int y, int u, int v) {
int g = y - (11 * u + 22 * v) / 32;
return MAX(0, MIN(255, g));
return CLAMP(g, 0, 255);
}
static inline uint8_t yuv_to_b(int y, int u, int v) {
int b = y + (55 * u) / 32;
return MAX(0, MIN(255, b));
return CLAMP(b, 0, 255);
}
static inline void UYVY422_unpack(UYVY422_type src0, UYVY422_type src1,
uint8_t *rgba) {
uint8_t *a, uint8_t *b) {
int u = (int)(src0 & 0xff) - 128;
int y0 = (int)((src0 >> 8) & 0xff);
int v = (int)((src1 & 0xff) & 0xff) - 128;
int y1 = (int)((src1 >> 8) & 0xff);
rgba[0] = yuv_to_r(y0, u, v);
rgba[1] = yuv_to_g(y0, u, v);
rgba[2] = yuv_to_b(y0, u, v);
rgba[3] = 0xff;
rgba[4] = yuv_to_r(y1, u, v);
rgba[5] = yuv_to_g(y1, u, v);
rgba[6] = yuv_to_b(y1, u, v);
rgba[7] = 0xff;
a[0] = yuv_to_r(y0, u, v);
a[1] = yuv_to_g(y0, u, v);
a[2] = yuv_to_b(y0, u, v);
a[3] = 0xff;
b[0] = yuv_to_r(y1, u, v);
b[1] = yuv_to_g(y1, u, v);
b[2] = yuv_to_b(y1, u, v);
b[3] = 0xff;
}
static inline void UYVY422_unpack_bitmap(const UYVY422_type *src,
uint8_t *rgba) {
UYVY422_unpack(src[0], src[1], rgba + 0x0);
UYVY422_unpack(src[2], src[3], rgba + 0x8);
UYVY422_unpack(src[0], src[1], rgba + 0x0, rgba + 0x4);
UYVY422_unpack(src[2], src[3], rgba + 0x8, rgba + 0xc);
}
static inline void UYVY422_unpack_twiddled(const UYVY422_type *src,
uint8_t *rgba) {
UYVY422_unpack(src[0], src[2], rgba + 0x0);
UYVY422_unpack(src[1], src[3], rgba + 0x8);
UYVY422_unpack(src[0], src[2], rgba + 0x0, rgba + 0x8);
UYVY422_unpack(src[1], src[3], rgba + 0x4, rgba + 0xc);
}
/* ARGB4444 */