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lavr: x86: optimized 6-channel s16p to flt conversion

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pull/28/head
Justin Ruggles 13 years ago
parent 46f929adad
commit 90cc27f813
2 changed files with 121 additions and 0 deletions
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  1. 106
      libavresample/x86/audio_convert.asm
  2. 15
      libavresample/x86/audio_convert_init.c

106
libavresample/x86/audio_convert.asm
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@ -30,6 +30,8 @@ pf_s32_inv_scale: times 8 dd 0x30000000
pf_s32_scale: times 8 dd 0x4f000000
pf_s16_inv_scale: times 4 dd 0x38000000
pf_s16_scale: times 4 dd 0x47000000
pb_shuf_unpack_even: db -1, -1, 0, 1, -1, -1, 2, 3, -1, -1, 8, 9, -1, -1, 10, 11
pb_shuf_unpack_odd: db -1, -1, 4, 5, -1, -1, 6, 7, -1, -1, 12, 13, -1, -1, 14, 15
SECTION_TEXT
@ -432,6 +434,110 @@ INIT_XMM avx
CONV_S16P_TO_FLT_2CH
%endif
;------------------------------------------------------------------------------
; void ff_conv_s16p_to_flt_6ch(float *dst, int16_t *const *src, int len,
; int channels);
;------------------------------------------------------------------------------
%macro CONV_S16P_TO_FLT_6CH 0
%if ARCH_X86_64
cglobal conv_s16p_to_flt_6ch, 3,8,8, dst, src, len, src1, src2, src3, src4, src5
%else
cglobal conv_s16p_to_flt_6ch, 2,7,8, 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
mova m7, [pf_s32_inv_scale]
%if cpuflag(ssse3)
%define unpack_even m6
mova m6, [pb_shuf_unpack_even]
%if ARCH_X86_64
%define unpack_odd m8
mova m8, [pb_shuf_unpack_odd]
%else
%define unpack_odd [pb_shuf_unpack_odd]
%endif
%endif
.loop:
movq m0, [srcq ] ; m0 = 0, 6, 12, 18, x, x, x, x
movq m1, [srcq+src1q] ; m1 = 1, 7, 13, 19, x, x, x, x
movq m2, [srcq+src2q] ; m2 = 2, 8, 14, 20, x, x, x, x
movq m3, [srcq+src3q] ; m3 = 3, 9, 15, 21, x, x, x, x
movq m4, [srcq+src4q] ; m4 = 4, 10, 16, 22, x, x, x, x
movq m5, [srcq+src5q] ; m5 = 5, 11, 17, 23, x, x, x, x
; unpack words:
punpcklwd m0, m1 ; m0 = 0, 1, 6, 7, 12, 13, 18, 19
punpcklwd m2, m3 ; m2 = 2, 3, 8, 9, 14, 15, 20, 21
punpcklwd m4, m5 ; m4 = 4, 5, 10, 11, 16, 17, 22, 23
; blend dwords
shufps m1, m4, m0, q3120 ; m1 = 4, 5, 16, 17, 6, 7, 18, 19
shufps m0, m2, q2020 ; m0 = 0, 1, 12, 13, 2, 3, 14, 15
shufps m2, m4, q3131 ; m2 = 8, 9, 20, 21, 10, 11, 22, 23
%if cpuflag(ssse3)
pshufb m3, m0, unpack_odd ; m3 = 12, 13, 14, 15
pshufb m0, unpack_even ; m0 = 0, 1, 2, 3
pshufb m4, m1, unpack_odd ; m4 = 16, 17, 18, 19
pshufb m1, unpack_even ; m1 = 4, 5, 6, 7
pshufb m5, m2, unpack_odd ; m5 = 20, 21, 22, 23
pshufb m2, unpack_even ; m2 = 8, 9, 10, 11
%else
; shuffle dwords
pshufd m0, m0, q3120 ; m0 = 0, 1, 2, 3, 12, 13, 14, 15
pshufd m1, m1, q3120 ; m1 = 4, 5, 6, 7, 16, 17, 18, 19
pshufd m2, m2, q3120 ; m2 = 8, 9, 10, 11, 20, 21, 22, 23
pxor m6, m6 ; convert s16 in m0-m2 to s32 in m0-m5
punpcklwd m3, m6, m0 ; m3 = 0, 1, 2, 3
punpckhwd m4, m6, m0 ; m4 = 12, 13, 14, 15
punpcklwd m0, m6, m1 ; m0 = 4, 5, 6, 7
punpckhwd m5, m6, m1 ; m5 = 16, 17, 18, 19
punpcklwd m1, m6, m2 ; m1 = 8, 9, 10, 11
punpckhwd m6, m2 ; m6 = 20, 21, 22, 23
SWAP 6,2,1,0,3,4,5 ; swap registers 3,0,1,4,5,6 to 0,1,2,3,4,5
%endif
cvtdq2ps m0, m0 ; convert s32 to float
cvtdq2ps m1, m1
cvtdq2ps m2, m2
cvtdq2ps m3, m3
cvtdq2ps m4, m4
cvtdq2ps m5, m5
mulps m0, m7 ; scale float from s32 range to [-1.0,1.0]
mulps m1, m7
mulps m2, m7
mulps m3, m7
mulps m4, m7
mulps m5, m7
mova [dstq ], m0
mova [dstq+ mmsize], m1
mova [dstq+2*mmsize], m2
mova [dstq+3*mmsize], m3
mova [dstq+4*mmsize], m4
mova [dstq+5*mmsize], m5
add srcq, mmsize/2
add dstq, mmsize*6
sub lend, mmsize/4
jg .loop
REP_RET
%endmacro
INIT_XMM sse2
CONV_S16P_TO_FLT_6CH
INIT_XMM ssse3
CONV_S16P_TO_FLT_6CH
%if HAVE_AVX
INIT_XMM avx
CONV_S16P_TO_FLT_6CH
%endif
;-----------------------------------------------------------------------------
; void ff_conv_fltp_to_flt_6ch(float *dst, float *const *src, int len,
; int channels);

15
libavresample/x86/audio_convert_init.c
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@ -59,6 +59,13 @@ extern void ff_conv_s16p_to_flt_2ch_sse2(float *dst, int16_t *const *src,
extern void ff_conv_s16p_to_flt_2ch_avx (float *dst, int16_t *const *src,
int len, int channels);
extern void ff_conv_s16p_to_flt_6ch_sse2 (float *dst, int16_t *const *src,
int len, int channels);
extern void ff_conv_s16p_to_flt_6ch_ssse3(float *dst, int16_t *const *src,
int len, int channels);
extern void ff_conv_s16p_to_flt_6ch_avx (float *dst, int16_t *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,
@ -101,6 +108,12 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
2, 16, 16, "SSE2", ff_conv_s16p_to_s16_2ch_sse2);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
2, 16, 8, "SSE2", ff_conv_s16p_to_flt_2ch_sse2);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
6, 16, 4, "SSE2", ff_conv_s16p_to_flt_6ch_sse2);
}
if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSE) {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
6, 16, 4, "SSSE3", ff_conv_s16p_to_flt_6ch_ssse3);
}
if (mm_flags & AV_CPU_FLAG_SSE4 && HAVE_SSE) {
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16,
@ -119,6 +132,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
6, 16, 8, "AVX", ff_conv_s16p_to_s16_6ch_avx);
ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
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_FLT, AV_SAMPLE_FMT_FLTP,
6, 16, 4, "AVX", ff_conv_fltp_to_flt_6ch_avx);
}

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