breeze/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-01-12 00:06:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/x86/hevc/idct: Port ff_hevc_idct_4x4_dc_{8,10,12}_mmxext to SSE2

Browse Source 
Practically no change in benchmarks (and in codesize).

hevc_idct_4x4_dc_8_c:                                    7.8 ( 1.00x)
hevc_idct_4x4_dc_8_mmxext:                               6.9 ( 1.14x)
hevc_idct_4x4_dc_8_sse2:                                 6.8 ( 1.15x)
hevc_idct_4x4_dc_10_c:                                   7.9 ( 1.00x)
hevc_idct_4x4_dc_10_mmxext:                              6.9 ( 1.16x)
hevc_idct_4x4_dc_10_sse2:                                6.8 ( 1.16x)
hevc_idct_4x4_dc_12_c:                                   7.8 ( 1.00x)
hevc_idct_4x4_dc_12_mmxext:                              7.0 ( 1.13x)
hevc_idct_4x4_dc_12_sse2:                                6.8 ( 1.15x)

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-10-30 00:07:42 +01:00
parent 909af3a571
commit 0f105b96a3
3 changed files with 11 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
libavcodec/x86/hevc/dsp_init.c
View File

@@ -65,7 +65,7 @@ void ff_hevc_idct_ ## W ## _dc_8_ ## opt(int16_t *coeffs); \
void ff_hevc_idct_ ## W ## _dc_10_ ## opt(int16_t *coeffs); \
void ff_hevc_idct_ ## W ## _dc_12_ ## opt(int16_t *coeffs)
IDCT_DC_FUNCS(4x4, mmxext);
IDCT_DC_FUNCS(4x4, sse2);
IDCT_DC_FUNCS(8x8, sse2);
IDCT_DC_FUNCS(16x16, sse2);
IDCT_DC_FUNCS(32x32, sse2);
@@ -816,8 +816,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
if (bit_depth == 8) {
if (EXTERNAL_MMXEXT(cpu_flags)) {
c->idct_dc[0] = ff_hevc_idct_4x4_dc_8_mmxext;
c->add_residual[0] = ff_hevc_add_residual_4_8_mmxext;
}
if (EXTERNAL_SSE2(cpu_flags)) {
@@ -832,6 +830,7 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
}
SAO_BAND_INIT(8, sse2);
c->idct_dc[0] = ff_hevc_idct_4x4_dc_8_sse2;
c->idct_dc[1] = ff_hevc_idct_8x8_dc_8_sse2;
c->idct_dc[2] = ff_hevc_idct_16x16_dc_8_sse2;
c->idct_dc[3] = ff_hevc_idct_32x32_dc_8_sse2;
@@ -998,7 +997,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
} else if (bit_depth == 10) {
if (EXTERNAL_MMXEXT(cpu_flags)) {
c->add_residual[0] = ff_hevc_add_residual_4_10_mmxext;
c->idct_dc[0] = ff_hevc_idct_4x4_dc_10_mmxext;
}
if (EXTERNAL_SSE2(cpu_flags)) {
c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_10_sse2;
@@ -1013,6 +1011,7 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
SAO_BAND_INIT(10, sse2);
SAO_EDGE_INIT(10, sse2);
c->idct_dc[0] = ff_hevc_idct_4x4_dc_10_sse2;
c->idct_dc[1] = ff_hevc_idct_8x8_dc_10_sse2;
c->idct_dc[2] = ff_hevc_idct_16x16_dc_10_sse2;
c->idct_dc[3] = ff_hevc_idct_32x32_dc_10_sse2;
@@ -1218,9 +1217,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
}
#endif /* HAVE_AVX2_EXTERNAL */
} else if (bit_depth == 12) {
if (EXTERNAL_MMXEXT(cpu_flags)) {
c->idct_dc[0] = ff_hevc_idct_4x4_dc_12_mmxext;
}
if (EXTERNAL_SSE2(cpu_flags)) {
c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_12_sse2;
c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_12_sse2;
@@ -1231,6 +1227,7 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
SAO_BAND_INIT(12, sse2);
SAO_EDGE_INIT(12, sse2);
c->idct_dc[0] = ff_hevc_idct_4x4_dc_12_sse2;
c->idct_dc[1] = ff_hevc_idct_8x8_dc_12_sse2;
c->idct_dc[2] = ff_hevc_idct_16x16_dc_12_sse2;
c->idct_dc[3] = ff_hevc_idct_32x32_dc_12_sse2;

19
libavcodec/x86/hevc/idct.asm
View File

@@ -273,16 +273,11 @@ cglobal hevc_idct_%1x%1_dc_%2, 1, 2, 1, coeff, tmp
sar tmpd, (15 - %2)
movd m0, tmpd
SPLATW m0, xm0
mova [coeffq+mmsize*0], m0
mova [coeffq+mmsize*1], m0
mova [coeffq+mmsize*2], m0
mova [coeffq+mmsize*3], m0
%if mmsize == 16
mova [coeffq+mmsize*4], m0
mova [coeffq+mmsize*5], m0
mova [coeffq+mmsize*6], m0
mova [coeffq+mmsize*7], m0
%endif
%assign %%offset 0
%rep 2*%1*%1/mmsize
mova [coeffq+%%offset], m0
%assign %%offset %%offset+mmsize
%endrep
RET
%endmacro
@@ -809,10 +804,8 @@ cglobal hevc_idct_32x32_%1, 1, 6, 16, 256, coeffs
%endmacro
%macro INIT_IDCT_DC 1
INIT_MMX mmxext
IDCT_DC_NL 4, %1
INIT_XMM sse2
IDCT_DC_NL 4, %1
IDCT_DC_NL 8, %1
IDCT_DC 16, 4, %1
IDCT_DC 32, 16, %1

2
tests/checkasm/hevc_idct.c
View File

@@ -69,7 +69,7 @@ static void check_idct_dc(HEVCDSPContext *h, int bit_depth)
for (i = 2; i <= 5; i++) {
int block_size = 1 << i;
int size = block_size * block_size;
declare_func_emms(AV_CPU_FLAG_MMXEXT, void, int16_t *coeffs);
declare_func(void, int16_t *coeffs);
randomize_buffers(coeffs0, size);
memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);