[FFmpeg-cvslog] lavr: x86: optimized 6-channel fltp to s16 conversion
Justin Ruggles
git at videolan.org
Fri Aug 24 14:44:30 CEST 2012
ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Wed May 2 16:27:11 2012 -0400| [d5b4e50c47276c6058fb779e1935c6ceaec5ed6a] | committer: Justin Ruggles
lavr: x86: optimized 6-channel fltp to s16 conversion
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d5b4e50c47276c6058fb779e1935c6ceaec5ed6a
---
libavresample/x86/audio_convert.asm | 114 ++++++++++++++++++++++++++++++++
libavresample/x86/audio_convert_init.c | 15 +++++
2 files changed, 129 insertions(+)
diff --git a/libavresample/x86/audio_convert.asm b/libavresample/x86/audio_convert.asm
index 15aaa6a..acc6bb0 100644
--- a/libavresample/x86/audio_convert.asm
+++ b/libavresample/x86/audio_convert.asm
@@ -581,6 +581,120 @@ CONV_FLTP_TO_S16_2CH
INIT_XMM ssse3
CONV_FLTP_TO_S16_2CH
+;------------------------------------------------------------------------------
+; void ff_conv_fltp_to_s16_6ch(int16_t *dst, float *const *src, int len,
+; int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLTP_TO_S16_6CH 0
+%if ARCH_X86_64
+cglobal conv_fltp_to_s16_6ch, 3,8,7, dst, src, len, src1, src2, src3, src4, src5
+%else
+cglobal conv_fltp_to_s16_6ch, 2,7,7, dst, src, src1, src2, src3, src4, src5
+%define lend dword r2m
+%endif
+ mov src1q, [srcq+1*gprsize]
+ mov src2q, [srcq+2*gprsize]
+ mov src3q, [srcq+3*gprsize]
+ mov src4q, [srcq+4*gprsize]
+ mov src5q, [srcq+5*gprsize]
+ mov srcq, [srcq]
+ sub src1q, srcq
+ sub src2q, srcq
+ sub src3q, srcq
+ sub src4q, srcq
+ sub src5q, srcq
+ movaps xmm6, [pf_s16_scale]
+.loop:
+%if cpuflag(sse2)
+ mulps m0, m6, [srcq ]
+ mulps m1, m6, [srcq+src1q]
+ mulps m2, m6, [srcq+src2q]
+ mulps m3, m6, [srcq+src3q]
+ mulps m4, m6, [srcq+src4q]
+ mulps m5, m6, [srcq+src5q]
+ cvtps2dq m0, m0
+ cvtps2dq m1, m1
+ cvtps2dq m2, m2
+ cvtps2dq m3, m3
+ cvtps2dq m4, m4
+ cvtps2dq m5, m5
+ packssdw m0, m3 ; m0 = 0, 6, 12, 18, 3, 9, 15, 21
+ packssdw m1, m4 ; m1 = 1, 7, 13, 19, 4, 10, 16, 22
+ packssdw m2, m5 ; m2 = 2, 8, 14, 20, 5, 11, 17, 23
+ ; unpack words:
+ movhlps m3, m0 ; m3 = 3, 9, 15, 21, x, x, x, x
+ punpcklwd m0, m1 ; m0 = 0, 1, 6, 7, 12, 13, 18, 19
+ punpckhwd m1, m2 ; m1 = 4, 5, 10, 11, 16, 17, 22, 23
+ punpcklwd m2, m3 ; m2 = 2, 3, 8, 9, 14, 15, 20, 21
+ ; blend dwords:
+ shufps m3, m0, m2, q2020 ; m3 = 0, 1, 12, 13, 2, 3, 14, 15
+ shufps m0, m1, q2031 ; m0 = 6, 7, 18, 19, 4, 5, 16, 17
+ shufps m2, m1, q3131 ; m2 = 8, 9, 20, 21, 10, 11, 22, 23
+ ; shuffle dwords:
+ shufps m1, m2, m3, q3120 ; m1 = 8, 9, 10, 11, 12, 13, 14, 15
+ shufps m3, m0, q0220 ; m3 = 0, 1, 2, 3, 4, 5, 6, 7
+ shufps m0, m2, q3113 ; m0 = 16, 17, 18, 19, 20, 21, 22, 23
+ mova [dstq+0*mmsize], m3
+ mova [dstq+1*mmsize], m1
+ mova [dstq+2*mmsize], m0
+%else ; sse
+ movlps xmm0, [srcq ]
+ movlps xmm1, [srcq+src1q]
+ movlps xmm2, [srcq+src2q]
+ movlps xmm3, [srcq+src3q]
+ movlps xmm4, [srcq+src4q]
+ movlps xmm5, [srcq+src5q]
+ mulps xmm0, xmm6
+ mulps xmm1, xmm6
+ mulps xmm2, xmm6
+ mulps xmm3, xmm6
+ mulps xmm4, xmm6
+ mulps xmm5, xmm6
+ cvtps2pi mm0, xmm0
+ cvtps2pi mm1, xmm1
+ cvtps2pi mm2, xmm2
+ cvtps2pi mm3, xmm3
+ cvtps2pi mm4, xmm4
+ cvtps2pi mm5, xmm5
+ packssdw mm0, mm3 ; m0 = 0, 6, 3, 9
+ packssdw mm1, mm4 ; m1 = 1, 7, 4, 10
+ packssdw mm2, mm5 ; m2 = 2, 8, 5, 11
+ ; unpack words
+ pshufw mm3, mm0, q1032 ; m3 = 3, 9, 0, 6
+ punpcklwd mm0, mm1 ; m0 = 0, 1, 6, 7
+ punpckhwd mm1, mm2 ; m1 = 4, 5, 10, 11
+ punpcklwd mm2, mm3 ; m2 = 2, 3, 8, 9
+ ; unpack dwords
+ pshufw mm3, mm0, q1032 ; m3 = 6, 7, 0, 1
+ punpckldq mm0, mm2 ; m0 = 0, 1, 2, 3 (final)
+ punpckhdq mm2, mm1 ; m2 = 8, 9, 10, 11 (final)
+ punpckldq mm1, mm3 ; m1 = 4, 5, 6, 7 (final)
+ mova [dstq+0*mmsize], mm0
+ mova [dstq+1*mmsize], mm1
+ mova [dstq+2*mmsize], mm2
+%endif
+ add srcq, mmsize
+ add dstq, mmsize*3
+ sub lend, mmsize/4
+ jg .loop
+%if mmsize == 8
+ emms
+ RET
+%else
+ REP_RET
+%endif
+%endmacro
+
+INIT_MMX sse
+CONV_FLTP_TO_S16_6CH
+INIT_XMM sse2
+CONV_FLTP_TO_S16_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLTP_TO_S16_6CH
+%endif
+
;-----------------------------------------------------------------------------
; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len,
; int channels);
diff --git a/libavresample/x86/audio_convert_init.c b/libavresample/x86/audio_convert_init.c
index 3098658..51e51f5 100644
--- a/libavresample/x86/audio_convert_init.c
+++ b/libavresample/x86/audio_convert_init.c
@@ -71,6 +71,13 @@ extern void ff_conv_fltp_to_s16_2ch_sse2 (int16_t *dst, float *const *src,
extern void ff_conv_fltp_to_s16_2ch_ssse3(int16_t *dst, float *const *src,
int len, int channels);
+extern void ff_conv_fltp_to_s16_6ch_sse (int16_t *dst, float *const *src,
+ int len, int channels);
+extern void ff_conv_fltp_to_s16_6ch_sse2(int16_t *dst, float *const *src,
+ int len, int channels);
+extern void ff_conv_fltp_to_s16_6ch_avx (int16_t *dst, float *const *src,
+ int len, int channels);
+
extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len,
int channels);
extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
@@ -89,12 +96,18 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
6, 1, 4, "MMX", ff_conv_fltp_to_flt_6ch_mmx);
}
+ if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) {
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+ 6, 1, 2, "SSE", ff_conv_fltp_to_s16_6ch_sse);
+ }
if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32,
0, 16, 16, "SSE2", ff_conv_s32_to_s16_sse2);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
6, 16, 8, "SSE2", ff_conv_s16p_to_s16_6ch_sse2);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+ 6, 16, 4, "SSE2", ff_conv_fltp_to_s16_6ch_sse2);
} else {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16P,
6, 1, 4, "SSE2SLOW", ff_conv_s16p_to_s16_6ch_sse2slow);
@@ -143,6 +156,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
2, 16, 8, "AVX", ff_conv_s16p_to_flt_2ch_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
6, 16, 4, "AVX", ff_conv_s16p_to_flt_6ch_avx);
+ ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
+ 6, 16, 4, "AVX", ff_conv_fltp_to_s16_6ch_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLTP,
6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
}
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