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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-04-29 11:27:22 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-04-29 11:37:32 +0200 |
| commit | 5932938c9a2300963ac4f4270d89b58d6fd2b401 (patch) | |
| tree | d51ccbb9e80467417de1376f798f43bde7e61be5 /libswresample/x86 | |
| parent | 9d7c1b4cf36737bde226d0f7bb4e271e61e4e8a6 (diff) | |
| download | ffmpeg-5932938c9a2300963ac4f4270d89b58d6fd2b401.tar.gz | |
swr: float_to_int32_sse2()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample/x86')
| -rw-r--r-- | libswresample/x86/audio_convert.asm | 37 | ||||
| -rw-r--r-- | libswresample/x86/swresample_x86.c | 3 |
2 files changed, 40 insertions, 0 deletions
diff --git a/libswresample/x86/audio_convert.asm b/libswresample/x86/audio_convert.asm index 761fbb752d..99bfdcaafd 100644 --- a/libswresample/x86/audio_convert.asm +++ b/libswresample/x86/audio_convert.asm @@ -24,6 +24,7 @@ SECTION_RODATA flt2pm31: times 8 dd 4.6566129e-10 +flt2p31 : times 8 dd 2147483648.0 SECTION .text @@ -128,6 +129,40 @@ int16_to_float_u_int %+ SUFFIX REP_RET %endmacro +%macro FLOAT_TO_INT32 1 +cglobal float_to_int32_%1, 3, 3, 5, dst, src, len + mov srcq, [srcq] + mov dstq, [dstq] +%ifidn %1, a + test dstq, mmsize-1 + jne float_to_int32_u_int %+ SUFFIX + test srcq, mmsize-1 + jne float_to_int32_u_int %+ SUFFIX +%else +float_to_int32_u_int %+ SUFFIX +%endif + add srcq, lenq + add dstq, lenq + neg lenq + mova m2, [flt2p31] +.next: + mov%1 m0, [ srcq+lenq] + mov%1 m1, [mmsize + srcq+lenq] + mulps m0, m2 + mulps m1, m2 + cvtps2dq m3, m0 + cvtps2dq m4, m1 + cmpnltps m0, m2 + cmpnltps m1, m2 + paddd m0, m3 + paddd m1, m4 + mov%1 [ dstq+lenq], m0 + mov%1 [mmsize + dstq+lenq], m1 + add lenq, 2*mmsize + jl .next + REP_RET +%endmacro + INIT_MMX mmx INT16_TO_INT32 u @@ -142,3 +177,5 @@ INT32_TO_FLOAT u INT32_TO_FLOAT a INT16_TO_FLOAT u INT16_TO_FLOAT a +FLOAT_TO_INT32 u +FLOAT_TO_INT32 a diff --git a/libswresample/x86/swresample_x86.c b/libswresample/x86/swresample_x86.c index fb973ee020..9b5f3cd024 100644 --- a/libswresample/x86/swresample_x86.c +++ b/libswresample/x86/swresample_x86.c @@ -28,6 +28,7 @@ MULTI_CAPS_FUNC_DECL(sse) void ff_int32_to_float_a_sse2(uint8_t **dst, const uint8_t **src, int len); void ff_int16_to_float_a_sse2(uint8_t **dst, const uint8_t **src, int len); +void ff_float_to_int32_a_sse2(uint8_t **dst, const uint8_t **src, int len); void swri_audio_convert_init_x86(struct AudioConvert *ac, enum AVSampleFormat out_fmt, @@ -53,5 +54,7 @@ MULTI_CAPS_FUNC(AV_CPU_FLAG_SSE, sse) ac->simd_f = ff_int32_to_float_a_sse2; if( out_fmt == AV_SAMPLE_FMT_FLT && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_FLTP && in_fmt == AV_SAMPLE_FMT_S16P) ac->simd_f = ff_int16_to_float_a_sse2; + if( out_fmt == AV_SAMPLE_FMT_S32 && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_FLTP) + ac->simd_f = ff_float_to_int32_a_sse2; } } |