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-rw-r--r--postproc/yuv2rgb_altivec.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/postproc/yuv2rgb_altivec.c b/postproc/yuv2rgb_altivec.c
index 43ac871fd3..9a73b577ac 100644
--- a/postproc/yuv2rgb_altivec.c
+++ b/postproc/yuv2rgb_altivec.c
@@ -278,7 +278,7 @@ static int altivec_##name (SwsContext *c, \
vector signed short R1,G1,B1; \
vector unsigned char R,G,B; \
\
- vector unsigned char *uivP, *vivP; \
+ vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP; \
vector unsigned char align_perm; \
\
vector signed short \
@@ -292,7 +292,7 @@ static int altivec_##name (SwsContext *c, \
vector unsigned short lCSHIFT = c->CSHIFT; \
\
ubyte *y1i = in[0]; \
- ubyte *y2i = in[0]+w; \
+ ubyte *y2i = in[0]+instrides[0]; \
ubyte *ui = in[1]; \
ubyte *vi = in[2]; \
\
@@ -304,7 +304,7 @@ static int altivec_##name (SwsContext *c, \
(oplanes[0]+srcSliceY*outstrides[0]+outstrides[0]); \
\
\
- instrides_scl[0] = instrides[0]; \
+ instrides_scl[0] = instrides[0]*2-w; /* the loop moves y{1,2}i by w */ \
instrides_scl[1] = instrides[1]-w/2; /* the loop moves ui by w/2 */ \
instrides_scl[2] = instrides[2]-w/2; /* the loop moves vi by w/2 */ \
\
@@ -315,11 +315,17 @@ static int altivec_##name (SwsContext *c, \
\
for (j=0;j<w/16;j++) { \
\
- y0 = vec_ldl (0,y1i); \
- y1 = vec_ldl (0,y2i); \
+ y1ivP = (vector unsigned char *)y1i; \
+ y2ivP = (vector unsigned char *)y2i; \
uivP = (vector unsigned char *)ui; \
vivP = (vector unsigned char *)vi; \
\
+ align_perm = vec_lvsl (0, y1i); \
+ y0 = (vector unsigned char)vec_perm (y1ivP[0], y1ivP[1], align_perm);\
+ \
+ align_perm = vec_lvsl (0, y2i); \
+ y1 = (vector unsigned char)vec_perm (y2ivP[0], y2ivP[1], align_perm);\
+ \
align_perm = vec_lvsl (0, ui); \
u = (vector signed char)vec_perm (uivP[0], uivP[1], align_perm); \
\