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new cb98f5c3df avcodec/x86/hevc/add_res: Replace MMX with SSE2
cb98f5c3df is described below
commit cb98f5c3dfa1ee64c8ede81346b012a5c7562c99
Author: Zuxy Meng <[email protected]>
AuthorDate: Mon Aug 10 19:00:15 2026 -0700
Commit: Zuxy Meng <[email protected]>
CommitDate: Fri Aug 14 17:43:17 2026 -0700
avcodec/x86/hevc/add_res: Replace MMX with SSE2
Convert hevc_add_residual_4_10 to use SSE2 and remove declare_func_emms
in test code.
hevc_add_res_4x4_10_c: 21.7
hevc_add_res_4x4_10_mmxext: 9.4 ( 2.31x)
hevc_add_res_4x4_10_sse2: 9.2 ( 2.35x)
Signed-off-by: Zuxy Meng <[email protected]>
---
libavcodec/x86/hevc/add_res.asm | 24 +++++++++++++-----------
libavcodec/x86/hevc/dsp.h | 2 +-
libavcodec/x86/hevc/dsp_init.c | 4 +---
tests/checkasm/hevc_add_res.c | 2 +-
4 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/libavcodec/x86/hevc/add_res.asm b/libavcodec/x86/hevc/add_res.asm
index 70ae9fbc76..5558db700a 100644
--- a/libavcodec/x86/hevc/add_res.asm
+++ b/libavcodec/x86/hevc/add_res.asm
@@ -191,15 +191,17 @@ cglobal hevc_add_residual_32_8, 3, 5, 7
mova [%1+%3], m3
%endmacro
-%macro ADD_RES_MMX_4_10 3
- mova m0, [%1+0]
- mova m1, [%1+%2]
- paddw m0, [%3]
- paddw m1, [%3+8]
+%macro ADD_RES_SSE_4_10 3
+ movq m0, [%1+0]
+ movq m4, [%3]
+ paddw m0, m4
+ movq m1, [%1+%2]
+ movq m4, [%3+8]
+ paddw m1, m4
CLIPW m0, m2, m3
CLIPW m1, m2, m3
- mova [%1+0], m0
- mova [%1+%2], m1
+ movq [%1+0], m0
+ movq [%1+%2], m1
%endmacro
%macro ADD_RES_SSE_16_10 3
@@ -284,13 +286,13 @@ cglobal hevc_add_residual_32_8, 3, 5, 7
%endmacro
; void ff_hevc_add_residual_<4|8|16|32>_10(pixel *dst, const int16_t *block,
ptrdiff_t stride)
-INIT_MMX mmxext
+INIT_XMM sse2
cglobal hevc_add_residual_4_10, 3, 3, 6
pxor m2, m2
- mova m3, [max_pixels_10]
- ADD_RES_MMX_4_10 r0, r2, r1
+ movq m3, [max_pixels_10]
+ ADD_RES_SSE_4_10 r0, r2, r1
lea r0, [r0+2*r2]
- ADD_RES_MMX_4_10 r0, r2, r1+16
+ ADD_RES_SSE_4_10 r0, r2, r1+16
RET
INIT_XMM sse2
diff --git a/libavcodec/x86/hevc/dsp.h b/libavcodec/x86/hevc/dsp.h
index 98dc8cff9a..a538da064f 100644
--- a/libavcodec/x86/hevc/dsp.h
+++ b/libavcodec/x86/hevc/dsp.h
@@ -174,7 +174,7 @@ void ff_hevc_add_residual_32_8_sse2(uint8_t *dst, const
int16_t *res, ptrdiff_t
void ff_hevc_add_residual_32_8_avx2(uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
-void ff_hevc_add_residual_4_10_mmxext(uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
+void ff_hevc_add_residual_4_10_sse2(uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
void ff_hevc_add_residual_8_10_sse2(uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
void ff_hevc_add_residual_16_10_sse2(uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
void ff_hevc_add_residual_32_10_sse2(uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
diff --git a/libavcodec/x86/hevc/dsp_init.c b/libavcodec/x86/hevc/dsp_init.c
index c456ee9ed0..d65c3cf3f4 100644
--- a/libavcodec/x86/hevc/dsp_init.c
+++ b/libavcodec/x86/hevc/dsp_init.c
@@ -1002,9 +1002,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int
bit_depth)
}
#endif
} else if (bit_depth == 10) {
- if (EXTERNAL_MMXEXT(cpu_flags)) {
- c->add_residual[0] = ff_hevc_add_residual_4_10_mmxext;
- }
if (EXTERNAL_SSE2(cpu_flags)) {
c->hevc_v_loop_filter_chroma =
ff_hevc_v_loop_filter_chroma_10_sse2;
c->hevc_h_loop_filter_chroma =
ff_hevc_h_loop_filter_chroma_10_sse2;
@@ -1027,6 +1024,7 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int
bit_depth)
c->idct[1] = ff_hevc_idct_8x8_10_sse2;
c->transform_4x4_luma = ff_hevc_transform_4x4_luma_10_sse2;
+ c->add_residual[0] = ff_hevc_add_residual_4_10_sse2;
c->add_residual[1] = ff_hevc_add_residual_8_10_sse2;
c->add_residual[2] = ff_hevc_add_residual_16_10_sse2;
c->add_residual[3] = ff_hevc_add_residual_32_10_sse2;
diff --git a/tests/checkasm/hevc_add_res.c b/tests/checkasm/hevc_add_res.c
index 6388d5b12c..a63feff6df 100644
--- a/tests/checkasm/hevc_add_res.c
+++ b/tests/checkasm/hevc_add_res.c
@@ -50,7 +50,7 @@ static void compare_add_res(int size, ptrdiff_t stride, int
overflow_test, int m
LOCAL_ALIGNED_32(uint8_t, dst0, [32 * 32 * 2]);
LOCAL_ALIGNED_32(uint8_t, dst1, [32 * 32 * 2]);
- declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const int16_t *res,
ptrdiff_t stride);
+ declare_func(void, uint8_t *dst, const int16_t *res, ptrdiff_t stride);
randomize_buffers(res0, size);
randomize_buffers2(dst0, size, mask);
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