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| author | James Almer <jamrial@gmail.com> | 2014-03-17 17:07:34 -0300 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-03-18 15:00:50 +0100 |
| commit | 7c8bf09eddf4fe738eb05bec68479024a66bbde9 (patch) | |
| tree | 593c8e43f2d4045af13976ec7bd206a69a9f4195 /libswresample | |
| parent | c56d25c4764fee4b7b0e94212ff279f34c8ba0c8 (diff) | |
| download | ffmpeg-7c8bf09eddf4fe738eb05bec68479024a66bbde9.tar.gz | |
swresample: change COMMON_CORE_INT16 asm from SSSE3 to SSE2
pshuf+paddd is slightly faster than phaddd.
The real gain is in pre-ssse3 processors like AMD K8 and K10, which get
a big boost in performance compared to the mmxext version
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample')
| -rw-r--r-- | libswresample/resample.c | 10 | ||||
| -rw-r--r-- | libswresample/resample_template.c | 8 | ||||
| -rw-r--r-- | libswresample/x86/resample_mmx.h | 10 |
3 files changed, 15 insertions, 13 deletions
diff --git a/libswresample/resample.c b/libswresample/resample.c index 8b1b6ca9af..034b47ae59 100644 --- a/libswresample/resample.c +++ b/libswresample/resample.c @@ -302,10 +302,10 @@ static int set_compensation(ResampleContext *c, int sample_delta, int compensati #include "resample_template.c" #undef TEMPLATE_RESAMPLE_S16_MMX2 -#if HAVE_SSSE3_INLINE -#define TEMPLATE_RESAMPLE_S16_SSSE3 +#if HAVE_SSE2_INLINE +#define TEMPLATE_RESAMPLE_S16_SSE2 #include "resample_template.c" -#undef TEMPLATE_RESAMPLE_S16_SSSE3 +#undef TEMPLATE_RESAMPLE_S16_SSE2 #endif #endif // HAVE_MMXEXT_INLINE @@ -317,8 +317,8 @@ static int multiple_resample(ResampleContext *c, AudioData *dst, int dst_size, A for(i=0; i<dst->ch_count; i++){ #if HAVE_MMXEXT_INLINE -#if HAVE_SSSE3_INLINE - if(c->format == AV_SAMPLE_FMT_S16P && (mm_flags&AV_CPU_FLAG_SSSE3)) ret= swri_resample_int16_ssse3(c, (int16_t*)dst->ch[i], (const int16_t*)src->ch[i], consumed, src_size, dst_size, i+1==dst->ch_count); +#if HAVE_SSE2_INLINE + if(c->format == AV_SAMPLE_FMT_S16P && (mm_flags&AV_CPU_FLAG_SSE2)) ret= swri_resample_int16_sse2 (c, (int16_t*)dst->ch[i], (const int16_t*)src->ch[i], consumed, src_size, dst_size, i+1==dst->ch_count); else #endif if(c->format == AV_SAMPLE_FMT_S16P && (mm_flags&AV_CPU_FLAG_MMX2 )){ diff --git a/libswresample/resample_template.c b/libswresample/resample_template.c index 5bc12bcb71..bdb038a56f 100644 --- a/libswresample/resample_template.c +++ b/libswresample/resample_template.c @@ -57,7 +57,7 @@ #elif defined(TEMPLATE_RESAMPLE_S16) \ || defined(TEMPLATE_RESAMPLE_S16_MMX2) \ - || defined(TEMPLATE_RESAMPLE_S16_SSSE3) + || defined(TEMPLATE_RESAMPLE_S16_SSE2) # define FILTER_SHIFT 15 # define DELEM int16_t @@ -74,9 +74,9 @@ # elif defined(TEMPLATE_RESAMPLE_S16_MMX2) # define COMMON_CORE COMMON_CORE_INT16_MMX2 # define RENAME(N) N ## _int16_mmx2 -# elif defined(TEMPLATE_RESAMPLE_S16_SSSE3) -# define COMMON_CORE COMMON_CORE_INT16_SSSE3 -# define RENAME(N) N ## _int16_ssse3 +# elif defined(TEMPLATE_RESAMPLE_S16_SSE2) +# define COMMON_CORE COMMON_CORE_INT16_SSE2 +# define RENAME(N) N ## _int16_sse2 # endif #endif diff --git a/libswresample/x86/resample_mmx.h b/libswresample/x86/resample_mmx.h index d96fd5a9d2..fab52f704a 100644 --- a/libswresample/x86/resample_mmx.h +++ b/libswresample/x86/resample_mmx.h @@ -23,7 +23,7 @@ #include "libswresample/swresample_internal.h" int swri_resample_int16_mmx2 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx); -int swri_resample_int16_ssse3(struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx); +int swri_resample_int16_sse2 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx); DECLARE_ALIGNED(16, const uint64_t, ff_resample_int16_rounder)[2] = { 0x0000000000004000ULL, 0x0000000000000000ULL}; @@ -48,7 +48,7 @@ __asm__ volatile(\ "r" (dst+dst_index)\ ); -#define COMMON_CORE_INT16_SSSE3 \ +#define COMMON_CORE_INT16_SSE2 \ x86_reg len= -2*c->filter_length;\ __asm__ volatile(\ "movdqa "MANGLE(ff_resample_int16_rounder)", %%xmm0 \n\t"\ @@ -58,8 +58,10 @@ __asm__ volatile(\ "paddd %%xmm1, %%xmm0 \n\t"\ "add $16, %0 \n\t"\ " js 1b \n\t"\ - "phaddd %%xmm0, %%xmm0 \n\t"\ - "phaddd %%xmm0, %%xmm0 \n\t"\ + "pshufd $0x0E, %%xmm0, %%xmm1 \n\t"\ + "paddd %%xmm1, %%xmm0 \n\t"\ + "pshufd $0x01, %%xmm0, %%xmm1 \n\t"\ + "paddd %%xmm1, %%xmm0 \n\t"\ "psrad $15, %%xmm0 \n\t"\ "packssdw %%xmm0, %%xmm0 \n\t"\ "movd %%xmm0, (%3) \n\t"\ |