RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-12 02:04:58 +00:00
Code Issues Projects Releases Wiki Activity

x86: dcadsp: implement SSE lfe_dir

Browse Source 
Results for Arrandale/Windows:
32: 1670 -> 316
64:  728 -> 298

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
This commit is contained in:
Christophe Gisquet 2014-02-14 15:03:07 +00:00 committed by Janne Grunau
parent 87ec849fe9
commit ad507d7907
2 changed files with 91 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

87
libavcodec/x86/dcadsp.asm
View File

@ -88,3 +88,90 @@ INT8X8_FMUL_INT32
INIT_XMM sse4
INT8X8_FMUL_INT32
; %1=v0/v1 %2=in1 %3=in2
%macro FIR_LOOP 2-3
.loop%1:
%define va m1
%define vb m2
%if %1
%define OFFSET 0
%else
%define OFFSET NUM_COEF*count
%endif
; for v0, incrementing and for v1, decrementing
mova va, [cf0q + OFFSET]
mova vb, [cf0q + OFFSET + 4*NUM_COEF]
%if %0 == 3
mova m4, [cf0q + OFFSET + mmsize]
mova m0, [cf0q + OFFSET + 4*NUM_COEF + mmsize]
%endif
mulps va, %2
mulps vb, %2
%if %0 == 3
mulps m4, %3
mulps m0, %3
addps va, m4
addps vb, m0
%endif
; va = va1 va2 va3 va4
; vb = vb1 vb2 vb3 vb4
%if %1
SWAP va, vb
%endif
mova m4, va
unpcklps va, vb ; va3 vb3 va4 vb4
unpckhps m4, vb ; va1 vb1 va2 vb2
addps m4, va ; va1+3 vb1+3 va2+4 vb2+4
movhlps vb, m4 ; va1+3 vb1+3
addps vb, m4 ; va0..4 vb0..4
movh [outq + count], vb
%if %1
sub cf0q, 8*NUM_COEF
%endif
add count, 8
jl .loop%1
%endmacro
; void dca_lfe_fir(float *out, float *in, float *coefs)
%macro DCA_LFE_FIR 1
cglobal dca_lfe_fir%1, 3,3,6-%1, out, in, cf0
%define IN1 m3
%define IN2 m5
%define count inq
%define NUM_COEF 4*(2-%1)
%define NUM_OUT 32*(%1+1)
movu IN1, [inq + 4 - 1*mmsize]
shufps IN1, IN1, q0123
%if %1 == 0
movu IN2, [inq + 4 - 2*mmsize]
shufps IN2, IN2, q0123
%endif
mov count, -4*NUM_OUT
add cf0q, 4*NUM_COEF*NUM_OUT
add outq, 4*NUM_OUT
; compute v0 first
%if %1 == 0
FIR_LOOP 0, IN1, IN2
%else
FIR_LOOP 0, IN1
%endif
shufps IN1, IN1, q0123
mov count, -4*NUM_OUT
; cf1 already correctly positioned
add outq, 4*NUM_OUT ; outq now at out2
sub cf0q, 8*NUM_COEF
%if %1 == 0
shufps IN2, IN2, q0123
FIR_LOOP 1, IN2, IN1
%else
FIR_LOOP 1, IN1
%endif
RET
%endmacro
INIT_XMM sse
DCA_LFE_FIR 0
DCA_LFE_FIR 1

4
libavcodec/x86/dcadsp_init.c
View File

@ -26,6 +26,8 @@
void ff_int8x8_fmul_int32_sse(float *dst, const int8_t *src, int scale);
void ff_int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale);
void ff_int8x8_fmul_int32_sse4(float *dst, const int8_t *src, int scale);
void ff_dca_lfe_fir0_sse(float *out, const float *in, const float *coefs);
void ff_dca_lfe_fir1_sse(float *out, const float *in, const float *coefs);
av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
{
@ -35,6 +37,8 @@ av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
#if ARCH_X86_32
s->int8x8_fmul_int32 = ff_int8x8_fmul_int32_sse;
#endif
s->lfe_fir[0] = ff_dca_lfe_fir0_sse;
s->lfe_fir[1] = ff_dca_lfe_fir1_sse;
}
if (EXTERNAL_SSE2(cpu_flags)) {