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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-10-10 00:43:08 -0400 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-10-21 10:13:05 -0400 |
| commit | aad3429d4e34b74e4eb0b37b17f32804e217cf02 (patch) | |
| tree | 8f80e3579d489b84296ec60165002a13723dc334 /libavcodec/x86/fmtconvert.asm | |
| parent | 4e8e2624767f4af0eaa932c543d072fed96fd586 (diff) | |
| download | ffmpeg-aad3429d4e34b74e4eb0b37b17f32804e217cf02.tar.gz | |
fmtconvert: port float_to_int16_interleave() 2-channel x86 inline asm to yasm
Diffstat (limited to 'libavcodec/x86/fmtconvert.asm')
| -rw-r--r-- | libavcodec/x86/fmtconvert.asm | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libavcodec/x86/fmtconvert.asm b/libavcodec/x86/fmtconvert.asm index e3eb5d2286..854954835c 100644 --- a/libavcodec/x86/fmtconvert.asm +++ b/libavcodec/x86/fmtconvert.asm @@ -112,6 +112,58 @@ FLOAT_TO_INT16 3dnow, 0 %undef cvtps2pi +;------------------------------------------------------------------------------- +; void ff_float_to_int16_interleave2(int16_t *dst, const float **src, long len); +;------------------------------------------------------------------------------- +%macro FLOAT_TO_INT16_INTERLEAVE2 1 +cglobal float_to_int16_interleave2_%1, 3,4,2, dst, src0, src1, len + lea lenq, [4*r2q] + mov src1q, [src0q+gprsize] + mov src0q, [src0q] + add dstq, lenq + add src0q, lenq + add src1q, lenq + neg lenq +.loop: +%ifidn %1, sse2 + cvtps2dq m0, [src0q+lenq] + cvtps2dq m1, [src1q+lenq] + packssdw m0, m1 + movhlps m1, m0 + punpcklwd m0, m1 + mova [dstq+lenq], m0 +%else + cvtps2pi m0, [src0q+lenq ] + cvtps2pi m1, [src0q+lenq+8] + cvtps2pi m2, [src1q+lenq ] + cvtps2pi m3, [src1q+lenq+8] + packssdw m0, m1 + packssdw m2, m3 + mova m1, m0 + punpcklwd m0, m2 + punpckhwd m1, m2 + mova [dstq+lenq ], m0 + mova [dstq+lenq+8], m1 +%endif + add lenq, 16 + js .loop +%ifnidn %1, sse2 + emms +%endif + REP_RET +%endmacro + +INIT_MMX +%define cvtps2pi pf2id +FLOAT_TO_INT16_INTERLEAVE2 3dnow +%undef cvtps2pi +%define movdqa movaps +FLOAT_TO_INT16_INTERLEAVE2 sse +%undef movdqa +INIT_XMM +FLOAT_TO_INT16_INTERLEAVE2 sse2 + + %macro PSWAPD_SSE 2 pshufw %1, %2, 0x4e %endmacro |