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avcodec/x86/h264_chromamc: Avoid mmx in chroma_mc8_ssse3 functions

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No impact on performance here.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2026-04-02 23:58:08 +02:00
parent 0c4c9c66bd
commit 7fd2be97b9
2 changed files with 24 additions and 16 deletions
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36
libavcodec/x86/h264_chromamc.asm
View File

@@ -36,24 +36,32 @@ cextern rv40_bias
SECTION .text
%macro mv0_pixels_mc8 0
%macro mv0_pixels_mc8 1
lea r4, [r2*2 ]
.next4rows:
movq mm0, [r1 ]
movq mm1, [r1+r2]
movq m0, [r1 ]
movq m1, [r1+r2]
add r1, r4
CHROMAMC_AVG mm0, [r0 ]
CHROMAMC_AVG mm1, [r0+r2]
movq [r0 ], mm0
movq [r0+r2], mm1
%ifidn %1,avg
movq m2, [r0]
movq m3, [r0+r2]
pavgb m0, m2
pavgb m1, m3
%endif
movq [r0 ], m0
movq [r0+r2], m1
add r0, r4
movq mm0, [r1 ]
movq mm1, [r1+r2]
movq m0, [r1 ]
movq m1, [r1+r2]
add r1, r4
CHROMAMC_AVG mm0, [r0 ]
CHROMAMC_AVG mm1, [r0+r2]
movq [r0 ], mm0
movq [r0+r2], mm1
%ifidn %1,avg
movq m2, [r0]
movq m3, [r0+r2]
pavgb m0, m2
pavgb m1, m3
%endif
movq [r0 ], m0
movq [r0+r2], m1
add r0, r4
sub r3d, 4
jne .next4rows
@@ -133,7 +141,7 @@ cglobal %1_%2_chroma_mc8%3, 6, 7+UNIX64, 8
jne .at_least_one_non_zero
; mx == 0 AND my == 0 - no filter needed
..@%1_%2_chroma_mc8_no_filter_ %+ cpuname:
mv0_pixels_mc8
mv0_pixels_mc8 %1
RET
.at_least_one_non_zero:

4
tests/checkasm/rv40dsp.c
View File

@@ -37,8 +37,8 @@ static void check_chroma_mc(void)
LOCAL_ALIGNED_32(uint8_t, dst0, [16 * 18 * 2]);
LOCAL_ALIGNED_32(uint8_t, dst1, [16 * 18 * 2]);
declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int h, int x, int y);
declare_func(void, uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int h, int x, int y);
ff_rv40dsp_init(&h);
randomize_buffers();