61 lines
3.9 KiB
Diff
61 lines
3.9 KiB
Diff
revert some altivec specific change on all ppc* except ppc64le*
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q66: "We should also throw in a revert of FFmpeg/FFmpeg@3a557c5 but only
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conditionally, for ppc* but not ppc64le* (the new code is valid for
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POWER8 VSX which LE targets as a baseline but not BE)"
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This reverts commit 3a557c5d88b7b15b5954ba2743febb055549b536.
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---
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libswscale/ppc/yuv2rgb_altivec.c | 24 ++++++++++++++++++++----
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1 file changed, 20 insertions(+), 4 deletions(-)
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diff --git a/libswscale/ppc/yuv2rgb_altivec.c b/libswscale/ppc/yuv2rgb_altivec.c
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index 536545293d..c1e2852adb 100644
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--- a/libswscale/ppc/yuv2rgb_altivec.c
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+++ b/libswscale/ppc/yuv2rgb_altivec.c
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@@ -305,6 +305,9 @@ static int altivec_ ## name(SwsContext *c, const unsigned char **in, \
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vector signed short R1, G1, B1; \
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vector unsigned char R, G, B; \
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\
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+ const vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP; \
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+ vector unsigned char align_perm; \
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+ \
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vector signed short lCY = c->CY; \
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vector signed short lOY = c->OY; \
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vector signed short lCRV = c->CRV; \
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@@ -335,13 +338,26 @@ static int altivec_ ## name(SwsContext *c, const unsigned char **in, \
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vec_dstst(oute, (0x02000002 | (((w * 3 + 32) / 32) << 16)), 1); \
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\
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for (j = 0; j < w / 16; j++) { \
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- y0 = vec_xl(0, y1i); \
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+ y1ivP = (const vector unsigned char *) y1i; \
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+ y2ivP = (const vector unsigned char *) y2i; \
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+ uivP = (const vector unsigned char *) ui; \
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+ vivP = (const vector unsigned char *) vi; \
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+ \
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+ align_perm = vec_lvsl(0, y1i); \
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+ y0 = (vector unsigned char) \
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+ vec_perm(y1ivP[0], y1ivP[1], align_perm); \
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\
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- y1 = vec_xl(0, y2i); \
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+ align_perm = vec_lvsl(0, y2i); \
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+ y1 = (vector unsigned char) \
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+ vec_perm(y2ivP[0], y2ivP[1], align_perm); \
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\
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- u = (vector signed char) vec_xl(0, ui); \
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+ align_perm = vec_lvsl(0, ui); \
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+ u = (vector signed char) \
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+ vec_perm(uivP[0], uivP[1], align_perm); \
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\
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- v = (vector signed char) vec_xl(0, vi); \
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+ align_perm = vec_lvsl(0, vi); \
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+ v = (vector signed char) \
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+ vec_perm(vivP[0], vivP[1], align_perm); \
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\
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u = (vector signed char) \
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vec_sub(u, \
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--
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2.27.0
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