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lavr: x86: optimized 2-channel flt to fltp conversion

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This commit is contained in:
Justin Ruggles 2012-05-02 18:26:01 -04:00
parent 5245c9f3ad
commit e07c9705c8
2 changed files with 41 additions and 0 deletions
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32
libavresample/x86/audio_convert.asm
View File

@ -1165,3 +1165,35 @@ CONV_FLT_TO_S16P_6CH
INIT_XMM avx
CONV_FLT_TO_S16P_6CH
%endif
;------------------------------------------------------------------------------
; void ff_conv_flt_to_fltp_2ch(float *const *dst, float *src, int len,
; int channels);
;------------------------------------------------------------------------------
%macro CONV_FLT_TO_FLTP_2CH 0
cglobal conv_flt_to_fltp_2ch, 3,4,3, dst0, src, len, dst1
lea lenq, [4*lend]
mov dst1q, [dst0q+gprsize]
mov dst0q, [dst0q ]
lea srcq, [srcq+2*lenq]
add dst0q, lenq
add dst1q, lenq
neg lenq
.loop:
mova m0, [srcq+2*lenq ]
mova m1, [srcq+2*lenq+mmsize]
DEINT2_PS 0, 1, 2
mova [dst0q+lenq], m0
mova [dst1q+lenq], m1
add lenq, mmsize
jl .loop
REP_RET
%endmacro
INIT_XMM sse
CONV_FLT_TO_FLTP_2CH
%if HAVE_AVX
INIT_XMM avx
CONV_FLT_TO_FLTP_2CH
%endif

9
libavresample/x86/audio_convert_init.c
View File

@ -132,6 +132,11 @@ extern void ff_conv_flt_to_s16p_6ch_ssse3(int16_t *const *dst, float *src,
extern void ff_conv_flt_to_s16p_6ch_avx (int16_t *const *dst, float *src,
int len, int channels);
extern void ff_conv_flt_to_fltp_2ch_sse(float *const *dst, float *src, int len,
int channels);
extern void ff_conv_flt_to_fltp_2ch_avx(float *const *dst, float *src, int len,
int channels);
av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
{
#if HAVE_YASM
@ -148,6 +153,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
6, 1, 2, "SSE", ff_conv_fltp_to_s16_6ch_sse);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
2, 16, 8, "SSE", ff_conv_fltp_to_flt_2ch_sse);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
2, 16, 4, "SSE", ff_conv_flt_to_fltp_2ch_sse);
}
if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
@ -241,6 +248,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
2, 16, 8, "AVX", ff_conv_flt_to_s16p_2ch_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
6, 16, 4, "AVX", ff_conv_flt_to_s16p_6ch_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
2, 16, 4, "AVX", ff_conv_flt_to_fltp_2ch_avx);
}
#endif
}