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dct32: Add AVX implementation of 32-point DCT

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pull/2/head
Vitor Sessak 14 years ago committed by Reinhard Tartler
parent 4e653b98c8
commit 6204feb160
4 changed files with 224 additions and 119 deletions
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  1. 4
      libavcodec/mpegaudiodec.c
  2. 334
      libavcodec/x86/dct32_sse.asm
  3. 4
      libavcodec/x86/fft.c
  4. 1
      libavcodec/x86/fft.h

4
libavcodec/mpegaudiodec.c
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@ -69,9 +69,9 @@ typedef struct MPADecodeContext {
uint32_t free_format_next_header;
GetBitContext gb;
GetBitContext in_gb;
DECLARE_ALIGNED(16, MPA_INT, synth_buf)[MPA_MAX_CHANNELS][512 * 2];
DECLARE_ALIGNED(32, MPA_INT, synth_buf)[MPA_MAX_CHANNELS][512 * 2];
int synth_buf_offset[MPA_MAX_CHANNELS];
DECLARE_ALIGNED(16, INTFLOAT, sb_samples)[MPA_MAX_CHANNELS][36][SBLIMIT];
DECLARE_ALIGNED(32, INTFLOAT, sb_samples)[MPA_MAX_CHANNELS][36][SBLIMIT];
INTFLOAT mdct_buf[MPA_MAX_CHANNELS][SBLIMIT * 18]; /* previous samples, for layer 3 MDCT */
GranuleDef granules[2][2]; /* Used in Layer 3 */
#ifdef DEBUG

334
libavcodec/x86/dct32_sse.asm
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@ -20,31 +20,41 @@
;******************************************************************************
%include "x86inc.asm"
%include "config.asm"
SECTION_RODATA 32
align 32
ps_cos_vec: dd 0.500603, 0.505471, 0.515447, 0.531043
dd 0.553104, 0.582935, 0.622504, 0.674808
dd -1.169440, -0.972568, -0.839350, -0.744536
dd -10.190008, -3.407609, -2.057781, -1.484165
dd -1.169440, -0.972568, -0.839350, -0.744536
dd 0.502419, 0.522499, 0.566944, 0.646822
dd 0.788155, 1.060678, 1.722447, 5.101149
dd 0.509796, 0.601345, 0.899976, 2.562916
dd 0.509796, 0.601345, 0.899976, 2.562916
dd 1.000000, 1.000000, 1.306563, 0.541196
dd 1.000000, 1.000000, 1.306563, 0.541196
dd 1.000000, 0.707107, 1.000000, -0.707107
dd 1.000000, 0.707107, 1.000000, -0.707107
ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000, 0, 0, 0x80000000, 0x80000000
%macro BUTTERFLY 4
%macro BUTTERFLY_SSE 4
movaps %4, %1
subps %1, %2
addps %2, %4
mulps %1, %3
%endmacro
%macro BUTTERFLY0 5
%macro BUTTERFLY_AVX 4
vsubps %4, %1, %2
vaddps %2, %2, %1
vmulps %1, %4, %3
%endmacro
%macro BUTTERFLY0_SSE 5
movaps %4, %1
shufps %1, %1, %5
xorps %4, %2
@ -52,6 +62,13 @@ ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
mulps %1, %3
%endmacro
%macro BUTTERFLY0_AVX 5
vshufps %4, %1, %1, %5
vxorps %1, %1, %2
vaddps %4, %4, %1
vmulps %1, %4, %3
%endmacro
%macro BUTTERFLY2 4
BUTTERFLY0 %1, %2, %3, %4, 0x1b
%endmacro
@ -60,8 +77,199 @@ ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
BUTTERFLY0 %1, %2, %3, %4, 0xb1
%endmacro
INIT_XMM
%macro PASS6_AND_PERMUTE 0
mov tmpd, [outq+4]
movss m7, [outq+72]
addss m7, [outq+76]
movss m3, [outq+56]
addss m3, [outq+60]
addss m4, m3
movss m2, [outq+52]
addss m2, m3
movss m3, [outq+104]
addss m3, [outq+108]
addss m1, m3
addss m5, m4
movss [outq+ 16], m1
movss m1, [outq+100]
addss m1, m3
movss m3, [outq+40]
movss [outq+ 48], m1
addss m3, [outq+44]
movss m1, [outq+100]
addss m4, m3
addss m3, m2
addss m1, [outq+108]
movss [outq+ 40], m3
addss m2, [outq+36]
movss m3, [outq+8]
movss [outq+ 56], m2
addss m3, [outq+12]
movss [outq+ 32], m3
movss m3, [outq+80]
movss [outq+ 8], m5
movss [outq+ 80], m1
movss m2, [outq+52]
movss m5, [outq+120]
addss m5, [outq+124]
movss m1, [outq+64]
addss m2, [outq+60]
addss m0, m5
addss m5, [outq+116]
mov [outq+64], tmpd
addss m6, m0
addss m1, m6
mov tmpd, [outq+12]
mov [outq+ 96], tmpd
movss [outq+ 4], m1
movss m1, [outq+24]
movss [outq+ 24], m4
movss m4, [outq+88]
addss m4, [outq+92]
addss m3, m4
addss m4, [outq+84]
mov tmpd, [outq+108]
addss m1, [outq+28]
addss m0, m1
addss m1, m5
addss m6, m3
addss m3, m0
addss m0, m7
addss m5, [outq+20]
addss m7, m1
movss [outq+ 12], m6
mov [outq+112], tmpd
movss m6, [outq+28]
movss [outq+ 28], m0
movss m0, [outq+36]
movss [outq+ 36], m7
addss m1, m4
movss m7, [outq+116]
addss m0, m2
addss m7, [outq+124]
movss [outq+ 72], m0
movss m0, [outq+44]
addss m2, m0
movss [outq+ 44], m1
movss [outq+ 88], m2
addss m0, [outq+60]
mov tmpd, [outq+60]
mov [outq+120], tmpd
movss [outq+104], m0
addss m4, m5
addss m5, [outq+68]
movss [outq+52], m4
movss [outq+60], m5
movss m4, [outq+68]
movss m5, [outq+20]
movss [outq+ 20], m3
addss m5, m7
addss m7, m6
addss m4, m5
movss m2, [outq+84]
addss m2, [outq+92]
addss m5, m2
movss [outq+ 68], m4
addss m2, m7
movss m4, [outq+76]
movss [outq+ 84], m2
movss [outq+ 76], m5
addss m7, m4
addss m6, [outq+124]
addss m4, m6
addss m6, [outq+92]
movss [outq+100], m4
movss [outq+108], m6
movss m6, [outq+92]
movss [outq+92], m7
addss m6, [outq+124]
movss [outq+116], m6
%endmacro
%define BUTTERFLY BUTTERFLY_AVX
%define BUTTERFLY0 BUTTERFLY0_AVX
INIT_YMM
section .text align=16
%ifdef HAVE_AVX
; void ff_dct32_float_avx(FFTSample *out, const FFTSample *in)
cglobal dct32_float_avx, 2,3,8, out, in, tmp
; pass 1
vmovaps m4, [inq+0]
vinsertf128 m5, m5, [inq+96], 1
vinsertf128 m5, m5, [inq+112], 0
vshufps m5, m5, m5, 0x1b
BUTTERFLY m4, m5, [ps_cos_vec], m6
vmovaps m2, [inq+64]
vinsertf128 m6, m6, [inq+32], 1
vinsertf128 m6, m6, [inq+48], 0
vshufps m6, m6, m6, 0x1b
BUTTERFLY m2, m6, [ps_cos_vec+32], m0
; pass 2
BUTTERFLY m5, m6, [ps_cos_vec+64], m0
BUTTERFLY m4, m2, [ps_cos_vec+64], m7
; pass 3
vperm2f128 m3, m6, m4, 0x31
vperm2f128 m1, m6, m4, 0x20
vshufps m3, m3, m3, 0x1b
BUTTERFLY m1, m3, [ps_cos_vec+96], m6
vperm2f128 m4, m5, m2, 0x20
vperm2f128 m5, m5, m2, 0x31
vshufps m5, m5, m5, 0x1b
BUTTERFLY m4, m5, [ps_cos_vec+96], m6
; pass 4
vmovaps m6, [ps_p1p1m1m1+0]
vmovaps m2, [ps_cos_vec+128]
BUTTERFLY2 m5, m6, m2, m7
BUTTERFLY2 m4, m6, m2, m7
BUTTERFLY2 m1, m6, m2, m7
BUTTERFLY2 m3, m6, m2, m7
; pass 5
vshufps m6, m6, m6, 0xcc
vmovaps m2, [ps_cos_vec+160]
BUTTERFLY3 m5, m6, m2, m7
BUTTERFLY3 m4, m6, m2, m7
BUTTERFLY3 m1, m6, m2, m7
BUTTERFLY3 m3, m6, m2, m7
vperm2f128 m6, m3, m3, 0x31
vmovaps [outq], m3
vextractf128 [outq+64], m5, 1
vextractf128 [outq+32], m5, 0
vextractf128 [outq+80], m4, 1
vextractf128 [outq+48], m4, 0
vperm2f128 m0, m1, m1, 0x31
vmovaps [outq+96], m1
vzeroupper
; pass 6, no SIMD...
INIT_XMM
PASS6_AND_PERMUTE
RET
%endif
%define BUTTERFLY BUTTERFLY_SSE
%define BUTTERFLY0 BUTTERFLY0_SSE
INIT_XMM
; void ff_dct32_float_sse(FFTSample *out, const FFTSample *in)
cglobal dct32_float_sse, 2,3,8, out, in, tmp
; pass 1
@ -74,8 +282,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
movaps m7, [inq+64]
movaps m4, [inq+48]
shufps m4, m4, 0x1b
BUTTERFLY m7, m4, [ps_cos_vec+48], m3
BUTTERFLY m7, m4, [ps_cos_vec+32], m3
; pass 2
movaps m2, [ps_cos_vec+64]
@ -92,7 +299,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
movaps m4, [inq+80]
movaps m5, [inq+32]
shufps m5, m5, 0x1b
BUTTERFLY m4, m5, [ps_cos_vec+32], m3
BUTTERFLY m4, m5, [ps_cos_vec+48], m3
; pass 2
BUTTERFLY m0, m7, m2, m3
@ -123,7 +330,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
; pass 4
movaps m3, [ps_p1p1m1m1+0]
movaps m2, [ps_cos_vec+112]
movaps m2, [ps_cos_vec+128]
BUTTERFLY2 m5, m3, m2, m1
@ -148,7 +355,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
BUTTERFLY2 m0, m3, m2, m1
; pass 5
movaps m2, [ps_cos_vec+128]
movaps m2, [ps_cos_vec+160]
shufps m3, m3, 0xcc
BUTTERFLY3 m5, m3, m2, m1
@ -180,110 +387,5 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
; pass 6, no SIMD...
mov tmpd, [outq+4]
movss m7, [outq+72]
addss m7, [outq+76]
movss m3, [outq+56]
addss m3, [outq+60]
addss m4, m3
movss m2, [outq+52]
addss m2, m3
movss m3, [outq+104]
addss m3, [outq+108]
addss m1, m3
addss m5, m4
movss [outq+ 16], m1
movss m1, [outq+100]
addss m1, m3
movss m3, [outq+40]
movss [outq+ 48], m1
addss m3, [outq+44]
movss m1, [outq+100]
addss m4, m3
addss m3, m2
addss m1, [outq+108]
movss [outq+ 40], m3
addss m2, [outq+36]
movss m3, [outq+8]
movss [outq+ 56], m2
addss m3, [outq+12]
movss [outq+ 32], m3
movss m3, [outq+80]
movss [outq+ 8], m5
movss [outq+ 80], m1
movss m2, [outq+52]
movss m5, [outq+120]
addss m5, [outq+124]
movss m1, [outq+64]
addss m2, [outq+60]
addss m0, m5
addss m5, [outq+116]
mov [outq+64], tmpd
addss m6, m0
addss m1, m6
mov tmpd, [outq+12]
mov [outq+ 96], tmpd
movss [outq+ 4], m1
movss m1, [outq+24]
movss [outq+ 24], m4
movss m4, [outq+88]
addss m4, [outq+92]
addss m3, m4
addss m4, [outq+84]
mov tmpd, [outq+108]
addss m1, [outq+28]
addss m0, m1
addss m1, m5
addss m6, m3
addss m3, m0
addss m0, m7
addss m5, [outq+20]
addss m7, m1
movss [outq+ 12], m6
mov [outq+112], tmpd
movss m6, [outq+28]
movss [outq+ 28], m0
movss m0, [outq+36]
movss [outq+ 36], m7
addss m1, m4
movss m7, [outq+116]
addss m0, m2
addss m7, [outq+124]
movss [outq+ 72], m0
movss m0, [outq+44]
addss m2, m0
movss [outq+ 44], m1
movss [outq+ 88], m2
addss m0, [outq+60]
mov tmpd, [outq+60]
mov [outq+120], tmpd
movss [outq+104], m0
addss m4, m5
addss m5, [outq+68]
movss [outq+52], m4
movss [outq+60], m5
movss m4, [outq+68]
movss m5, [outq+20]
movss [outq+ 20], m3
addss m5, m7
addss m7, m6
addss m4, m5
movss m2, [outq+84]
addss m2, [outq+92]
addss m5, m2
movss [outq+ 68], m4
addss m2, m7
movss m4, [outq+76]
movss [outq+ 84], m2
movss [outq+ 76], m5
addss m7, m4
addss m6, [outq+124]
addss m4, m6
addss m6, [outq+92]
movss [outq+100], m4
movss [outq+108], m6
movss m6, [outq+92]
movss [outq+92], m7
addss m6, [outq+124]
movss [outq+116], m6
PASS6_AND_PERMUTE
RET

4
libavcodec/x86/fft.c
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@ -57,7 +57,9 @@ av_cold void ff_fft_init_mmx(FFTContext *s)
av_cold void ff_dct_init_mmx(DCTContext *s)
{
int has_vectors = av_get_cpu_flags();
if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE)
if (has_vectors & AV_CPU_FLAG_AVX && HAVE_AVX)
s->dct32 = ff_dct32_float_avx;
else if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE)
s->dct32 = ff_dct32_float_sse;
}
#endif

1
libavcodec/x86/fft.h
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@ -35,5 +35,6 @@ void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input);
void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
#endif /* AVCODEC_X86_FFT_H */

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