diff options
author | Ronald S. Bultje <rsbultje@gmail.com> | 2012-08-01 07:23:39 +0400 |
---|---|---|
committer | Ronald S. Bultje <rsbultje@gmail.com> | 2012-08-01 08:20:47 +0400 |
commit | b6a3849adb0381a437952a785d39e22cb3b00282 (patch) | |
tree | 4f2ec873af703a90ba0a7018b618438559a8b33d /libavcodec | |
parent | ddbe71b44fc810cc39b576bf0047f89090cfabcb (diff) |
fft: port FFT/IMDCT 3dnow functions to yasm, and disable on x86-64.
64-bit CPUs always have SSE available, thus there is no need to compile
in the 3dnow functions. This results in smaller binaries.
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/x86/Makefile | 2 | ||||
-rw-r--r-- | libavcodec/x86/fft.c | 2 | ||||
-rw-r--r-- | libavcodec/x86/fft_3dn.c | 23 | ||||
-rw-r--r-- | libavcodec/x86/fft_3dn2.c | 173 | ||||
-rw-r--r-- | libavcodec/x86/fft_mmx.asm | 196 |
5 files changed, 170 insertions, 226 deletions
diff --git a/libavcodec/x86/Makefile b/libavcodec/x86/Makefile index 1d2635749f..0ae70b2dd0 100644 --- a/libavcodec/x86/Makefile +++ b/libavcodec/x86/Makefile @@ -38,8 +38,6 @@ YASM-OBJS-$(CONFIG_AAC_DECODER) += x86/sbrdsp.o YASM-OBJS-$(CONFIG_AC3DSP) += x86/ac3dsp.o YASM-OBJS-$(CONFIG_DCT) += x86/dct32_sse.o YASM-OBJS-$(CONFIG_ENCODERS) += x86/dsputilenc_yasm.o -YASM-OBJS-FFT-$(HAVE_AMD3DNOW) += x86/fft_3dn.o -YASM-OBJS-FFT-$(HAVE_AMD3DNOWEXT) += x86/fft_3dn2.o YASM-OBJS-$(CONFIG_FFT) += x86/fft_mmx.o \ $(YASM-OBJS-FFT-yes) YASM-OBJS-$(CONFIG_H264CHROMA) += x86/h264_chromamc.o \ diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c index 6349c239c3..f1c1c9d36b 100644 --- a/libavcodec/x86/fft.c +++ b/libavcodec/x86/fft.c @@ -25,6 +25,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) { #if HAVE_YASM int has_vectors = av_get_cpu_flags(); +#if ARCH_X86_32 if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) { /* 3DNow! for K6-2/3 */ s->imdct_calc = ff_imdct_calc_3dnow; @@ -37,6 +38,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) s->imdct_half = ff_imdct_half_3dnow2; s->fft_calc = ff_fft_calc_3dnow2; } +#endif if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) { /* SSE for P3/P4/K8 */ s->imdct_calc = ff_imdct_calc_sse; diff --git a/libavcodec/x86/fft_3dn.c b/libavcodec/x86/fft_3dn.c deleted file mode 100644 index 5a4d3ad2c8..0000000000 --- a/libavcodec/x86/fft_3dn.c +++ /dev/null @@ -1,23 +0,0 @@ -/* - * FFT/MDCT transform with 3DNow! optimizations - * Copyright (c) 2008 Loren Merritt - * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * Libav is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#define EMULATE_3DNOWEXT -#include "fft_3dn2.c" diff --git a/libavcodec/x86/fft_3dn2.c b/libavcodec/x86/fft_3dn2.c deleted file mode 100644 index e684cc745f..0000000000 --- a/libavcodec/x86/fft_3dn2.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * FFT/MDCT transform with Extended 3DNow! optimizations - * Copyright (c) 2006-2008 Zuxy MENG Jie, Loren Merritt - * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * Libav is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "libavutil/x86_cpu.h" -#include "libavcodec/dsputil.h" -#include "fft.h" - -DECLARE_ALIGNED(8, static const unsigned int, m1m1)[2] = { 1U<<31, 1U<<31 }; - -#ifdef EMULATE_3DNOWEXT -#define PSWAPD(s,d)\ - "movq "#s","#d"\n"\ - "psrlq $32,"#d"\n"\ - "punpckldq "#s","#d"\n" -#define ff_fft_calc_3dnow2 ff_fft_calc_3dnow -#define ff_fft_dispatch_3dnow2 ff_fft_dispatch_3dnow -#define ff_fft_dispatch_interleave_3dnow2 ff_fft_dispatch_interleave_3dnow -#define ff_imdct_calc_3dnow2 ff_imdct_calc_3dnow -#define ff_imdct_half_3dnow2 ff_imdct_half_3dnow -#else -#define PSWAPD(s,d) "pswapd "#s","#d"\n" -#endif - -void ff_fft_dispatch_3dnow2(FFTComplex *z, int nbits); -void ff_fft_dispatch_interleave_3dnow2(FFTComplex *z, int nbits); - -void ff_fft_calc_3dnow2(FFTContext *s, FFTComplex *z) -{ - int n = 1<<s->nbits; - int i; - ff_fft_dispatch_interleave_3dnow2(z, s->nbits); - __asm__ volatile("femms"); - if(n <= 8) - for(i=0; i<n; i+=2) - FFSWAP(FFTSample, z[i].im, z[i+1].re); -} - -void ff_imdct_half_3dnow2(FFTContext *s, FFTSample *output, const FFTSample *input) -{ - x86_reg j, k; - long n = s->mdct_size; - long n2 = n >> 1; - long n4 = n >> 2; - long n8 = n >> 3; - const uint16_t *revtab = s->revtab; - const FFTSample *tcos = s->tcos; - const FFTSample *tsin = s->tsin; - const FFTSample *in1, *in2; - FFTComplex *z = (FFTComplex *)output; - - /* pre rotation */ - in1 = input; - in2 = input + n2 - 1; -#ifdef EMULATE_3DNOWEXT - __asm__ volatile("movd %0, %%mm7" ::"r"(1U<<31)); -#endif - for(k = 0; k < n4; k++) { - // FIXME a single block is faster, but gcc 2.95 and 3.4.x on 32bit can't compile it - __asm__ volatile( - "movd %0, %%mm0 \n" - "movd %2, %%mm1 \n" - "punpckldq %1, %%mm0 \n" - "punpckldq %3, %%mm1 \n" - "movq %%mm0, %%mm2 \n" - PSWAPD( %%mm1, %%mm3 ) - "pfmul %%mm1, %%mm0 \n" - "pfmul %%mm3, %%mm2 \n" -#ifdef EMULATE_3DNOWEXT - "movq %%mm0, %%mm1 \n" - "punpckhdq %%mm2, %%mm0 \n" - "punpckldq %%mm2, %%mm1 \n" - "pxor %%mm7, %%mm0 \n" - "pfadd %%mm1, %%mm0 \n" -#else - "pfpnacc %%mm2, %%mm0 \n" -#endif - ::"m"(in2[-2*k]), "m"(in1[2*k]), - "m"(tcos[k]), "m"(tsin[k]) - ); - __asm__ volatile( - "movq %%mm0, %0 \n\t" - :"=m"(z[revtab[k]]) - ); - } - - ff_fft_dispatch_3dnow2(z, s->nbits); - -#define CMUL(j,mm0,mm1)\ - "movq (%2,"#j",2), %%mm6 \n"\ - "movq 8(%2,"#j",2), "#mm0"\n"\ - "movq %%mm6, "#mm1"\n"\ - "movq "#mm0",%%mm7 \n"\ - "pfmul (%3,"#j"), %%mm6 \n"\ - "pfmul (%4,"#j"), "#mm0"\n"\ - "pfmul (%4,"#j"), "#mm1"\n"\ - "pfmul (%3,"#j"), %%mm7 \n"\ - "pfsub %%mm6, "#mm0"\n"\ - "pfadd %%mm7, "#mm1"\n" - - /* post rotation */ - j = -n2; - k = n2-8; - __asm__ volatile( - "1: \n" - CMUL(%0, %%mm0, %%mm1) - CMUL(%1, %%mm2, %%mm3) - "movd %%mm0, (%2,%0,2) \n" - "movd %%mm1,12(%2,%1,2) \n" - "movd %%mm2, (%2,%1,2) \n" - "movd %%mm3,12(%2,%0,2) \n" - "psrlq $32, %%mm0 \n" - "psrlq $32, %%mm1 \n" - "psrlq $32, %%mm2 \n" - "psrlq $32, %%mm3 \n" - "movd %%mm0, 8(%2,%0,2) \n" - "movd %%mm1, 4(%2,%1,2) \n" - "movd %%mm2, 8(%2,%1,2) \n" - "movd %%mm3, 4(%2,%0,2) \n" - "sub $8, %1 \n" - "add $8, %0 \n" - "jl 1b \n" - :"+r"(j), "+r"(k) - :"r"(z+n8), "r"(tcos+n8), "r"(tsin+n8) - :"memory" - ); - __asm__ volatile("femms"); -} - -void ff_imdct_calc_3dnow2(FFTContext *s, FFTSample *output, const FFTSample *input) -{ - x86_reg j, k; - long n = s->mdct_size; - long n4 = n >> 2; - - ff_imdct_half_3dnow2(s, output+n4, input); - - j = -n; - k = n-8; - __asm__ volatile( - "movq %4, %%mm7 \n" - "1: \n" - PSWAPD((%2,%1), %%mm0) - PSWAPD((%3,%0), %%mm1) - "pxor %%mm7, %%mm0 \n" - "movq %%mm1, (%3,%1) \n" - "movq %%mm0, (%2,%0) \n" - "sub $8, %1 \n" - "add $8, %0 \n" - "jl 1b \n" - :"+r"(j), "+r"(k) - :"r"(output+n4), "r"(output+n4*3), - "m"(*m1m1) - ); - __asm__ volatile("femms"); -} diff --git a/libavcodec/x86/fft_mmx.asm b/libavcodec/x86/fft_mmx.asm index 5c6583b3b7..81e4411dcb 100644 --- a/libavcodec/x86/fft_mmx.asm +++ b/libavcodec/x86/fft_mmx.asm @@ -29,6 +29,7 @@ ; i.e. {4x real, 4x imaginary, 4x real, ...} (or 2x respectively) %include "x86inc.asm" +%include "x86util.asm" %if ARCH_X86_64 %define pointer resq @@ -105,7 +106,7 @@ SECTION_TEXT pfadd %5, %4 ; {t6,t5} pxor %3, [ps_m1p1] ; {t8,t7} mova %6, %1 - pswapd %3, %3 + PSWAPD %3, %3 pfadd %1, %5 ; {r0,i0} pfsub %6, %5 ; {r2,i2} mova %4, %2 @@ -396,7 +397,6 @@ fft32_interleave_avx: %endif INIT_XMM sse -%define movdqa movaps align 16 fft4_avx: @@ -469,8 +469,8 @@ fft8 %+ SUFFIX: mova Z(2), m2 T2_3DN m4, m5, Z(4), Z(5) T2_3DN m6, m7, Z2(6), Z2(7) - pswapd m0, m5 - pswapd m2, m7 + PSWAPD m0, m5 + PSWAPD m2, m7 pxor m0, [ps_m1p1] pxor m2, [ps_m1p1] pfsub m5, m0 @@ -498,11 +498,11 @@ fft8 %+ SUFFIX: ret %endmacro -INIT_MMX 3dnow2 -FFT48_3DN - -%macro pswapd 2 -%ifidn %1, %2 +%if ARCH_X86_32 +%macro PSWAPD 2 +%if cpuflag(3dnow2) + pswapd %1, %2 +%elifidn %1, %2 movd [r0+12], %1 punpckhdq %1, [r0+8] %else @@ -512,9 +512,12 @@ FFT48_3DN %endif %endmacro -INIT_MMX 3dnow +INIT_MMX 3dnow2 FFT48_3DN +INIT_MMX 3dnow +FFT48_3DN +%endif %define Z(x) [zcq + o1q*(x&6) + mmsize*(x&1)] %define Z2(x) [zcq + o3q + mmsize*(x&1)] @@ -588,6 +591,7 @@ INIT_XMM sse DECL_PASS pass_sse, PASS_BIG 1 DECL_PASS pass_interleave_sse, PASS_BIG 0 +%macro FFT_CALC_FUNC 0 cglobal fft_calc, 2,5,8 mov r3d, [r0 + FFTContext.nbits] PUSH r1 @@ -597,23 +601,43 @@ cglobal fft_calc, 2,5,8 FFT_DISPATCH _interleave %+ SUFFIX, r1 POP rcx POP r4 - cmp rcx, 4 + cmp rcx, 3+(mmsize/16) jg .end mov r2, -1 add rcx, 3 shl r2, cl sub r4, r2 .loop +%if mmsize == 8 + PSWAPD m0, [r4 + r2 + 4] + mova [r4 + r2 + 4], m0 +%else movaps xmm0, [r4 + r2] movaps xmm1, xmm0 unpcklps xmm0, [r4 + r2 + 16] unpckhps xmm1, [r4 + r2 + 16] movaps [r4 + r2], xmm0 movaps [r4 + r2 + 16], xmm1 - add r2, 32 +%endif + add r2, mmsize*2 jl .loop .end: +%if cpuflag(3dnow) + femms + RET +%else REP_RET +%endif +%endmacro + +%if ARCH_X86_32 +INIT_MMX 3dnow +FFT_CALC_FUNC +INIT_MMX 3dnow2 +FFT_CALC_FUNC +%endif +INIT_XMM sse +FFT_CALC_FUNC cglobal fft_permute, 2,7,1 mov r4, [r0 + FFTContext.revtab] @@ -648,6 +672,7 @@ cglobal fft_permute, 2,7,1 jl .loopcopy REP_RET +%macro IMDCT_CALC_FUNC 0 cglobal imdct_calc, 3,5,3 mov r3d, [r0 + FFTContext.mdctsize] mov r4, [r0 + FFTContext.imdcthalf] @@ -671,22 +696,45 @@ cglobal imdct_calc, 3,5,3 POP r3 lea r0, [r1 + 2*r3] mov r2, r3 - sub r3, 16 + sub r3, mmsize neg r2 - movaps xmm2, [ps_m1m1m1m1] + mova m2, [ps_m1m1m1m1] .loop: - movaps xmm0, [r1 + r3] - movaps xmm1, [r0 + r2] - shufps xmm0, xmm0, 0x1b - shufps xmm1, xmm1, 0x1b - xorps xmm0, xmm2 - movaps [r0 + r3], xmm1 - movaps [r1 + r2], xmm0 - sub r3, 16 - add r2, 16 +%if mmsize == 8 + PSWAPD m0, [r1 + r3] + PSWAPD m1, [r0 + r2] + pxor m0, m2 +%else + mova m0, [r1 + r3] + mova m1, [r0 + r2] + shufps m0, m0, 0x1b + shufps m1, m1, 0x1b + xorps m0, m2 +%endif + mova [r0 + r3], m1 + mova [r1 + r2], m0 + sub r3, mmsize + add r2, mmsize jl .loop +%if cpuflag(3dnow) + femms + RET +%else REP_RET +%endif +%endmacro +%if ARCH_X86_32 +INIT_MMX 3dnow +IMDCT_CALC_FUNC +INIT_MMX 3dnow2 +IMDCT_CALC_FUNC +%endif + +INIT_XMM sse +IMDCT_CALC_FUNC + +%if ARCH_X86_32 INIT_MMX 3dnow %define mulps pfmul %define addps pfadd @@ -697,6 +745,7 @@ DECL_PASS pass_3dnow, PASS_SMALL 1, [wq], [wq+o1q] DECL_PASS pass_interleave_3dnow, PASS_BIG 0 %define pass_3dnow2 pass_3dnow %define pass_interleave_3dnow2 pass_interleave_3dnow +%endif %ifdef PIC %define SECTION_REL - $$ @@ -760,12 +809,14 @@ DECL_FFT 6, _interleave INIT_XMM sse DECL_FFT 5 DECL_FFT 5, _interleave +%if ARCH_X86_32 INIT_MMX 3dnow DECL_FFT 4 DECL_FFT 4, _interleave INIT_MMX 3dnow2 DECL_FFT 4 DECL_FFT 4, _interleave +%endif INIT_XMM sse %undef mulps @@ -775,6 +826,37 @@ INIT_XMM sse %undef unpckhps %macro PREROTATER 5 ;-2*k, 2*k, input+n4, tcos+n8, tsin+n8 +%if mmsize == 8 ; j*2+2-n4, n4-2-j*2, input+n4, tcos+n8, tsin+n8 + PSWAPD m0, [%3+%2*4] + movq m2, [%3+%1*4-8] + movq m3, m0 + punpckldq m0, m2 + punpckhdq m2, m3 + movd m1, [%4+%1*2-4] ; tcos[j] + movd m3, [%4+%2*2] ; tcos[n4-j-1] + punpckldq m1, [%5+%1*2-4] ; tsin[j] + punpckldq m3, [%5+%2*2] ; tsin[n4-j-1] + + mova m4, m0 + PSWAPD m5, m1 + pfmul m0, m1 + pfmul m4, m5 + mova m6, m2 + PSWAPD m5, m3 + pfmul m2, m3 + pfmul m6, m5 +%if cpuflag(3dnow2) + pfpnacc m0, m4 + pfpnacc m2, m6 +%else + SBUTTERFLY dq, 0, 4, 1 + SBUTTERFLY dq, 2, 6, 3 + pxor m4, m7 + pxor m6, m7 + pfadd m0, m4 + pfadd m2, m6 +%endif +%else movaps xmm0, [%3+%2*4] movaps xmm1, [%3+%1*4-0x10] movaps xmm2, xmm0 @@ -795,6 +877,7 @@ INIT_XMM sse movaps xmm0, xmm1 unpcklps xmm1, xmm2 unpckhps xmm0, xmm2 +%endif %endmacro %macro CMUL 6 ;j, xmm0, xmm1, 3, 4, 5 @@ -863,6 +946,40 @@ INIT_XMM sse jl .post %endmacro +%macro CMUL_3DNOW 6 + mova m6, [%1+%2*2] + mova %3, [%1+%2*2+8] + mova %4, m6 + mova m7, %3 + pfmul m6, [%5+%2] + pfmul %3, [%6+%2] + pfmul %4, [%6+%2] + pfmul m7, [%5+%2] + pfsub %3, m6 + pfadd %4, m7 +%endmacro + +%macro POSROTATESHUF_3DNOW 5 ;j, k, z+n8, tcos+n8, tsin+n8 +.post: + CMUL_3DNOW %3, %1, m0, m1, %4, %5 + CMUL_3DNOW %3, %2, m2, m3, %4, %5 + movd [%3+%1*2+ 0], m0 + movd [%3+%2*2+12], m1 + movd [%3+%2*2+ 0], m2 + movd [%3+%1*2+12], m3 + psrlq m0, 32 + psrlq m1, 32 + psrlq m2, 32 + psrlq m3, 32 + movd [%3+%1*2+ 8], m0 + movd [%3+%2*2+ 4], m1 + movd [%3+%2*2+ 8], m2 + movd [%3+%1*2+ 4], m3 + sub %2, 8 + add %1, 8 + jl .post +%endmacro + %macro DECL_IMDCT 1 cglobal imdct_half, 3,12,8; FFTContext *s, FFTSample *output, const FFTSample *input %if ARCH_X86_64 @@ -892,22 +1009,34 @@ cglobal imdct_half, 3,12,8; FFTContext *s, FFTSample *output, const FFTSample *i push rrevtab %endif - sub r3, 4 -%if ARCH_X86_64 + sub r3, mmsize/4 +%if ARCH_X86_64 || mmsize == 8 xor r4, r4 sub r4, r3 %endif +%if notcpuflag(3dnow2) && mmsize == 8 + movd m7, [ps_m1m1m1m1] +%endif .pre: %if ARCH_X86_64 == 0 ;unspill +%if mmsize != 8 xor r4, r4 sub r4, r3 - mov rtsin, [esp+4] +%endif mov rtcos, [esp+8] + mov rtsin, [esp+4] %endif PREROTATER r4, r3, r2, rtcos, rtsin -%if ARCH_X86_64 +%if mmsize == 8 + mov r6, [esp] ; rrevtab = ptr+n8 + movzx r5, word [rrevtab+r4-2] ; rrevtab[j] + movzx r6, word [rrevtab+r3] ; rrevtab[n4-j-1] + mova [r1+r5*8], m0 + mova [r1+r6*8], m2 + add r4, 2 +%elif ARCH_X86_64 movzx r5, word [rrevtab+r4-4] movzx r6, word [rrevtab+r4-2] movzx r10, word [rrevtab+r3] @@ -928,7 +1057,7 @@ cglobal imdct_half, 3,12,8; FFTContext *s, FFTSample *output, const FFTSample *i movlps [r1+r5*8], xmm1 movhps [r1+r4*8], xmm1 %endif - sub r3, 4 + sub r3, mmsize/4 jns .pre mov r5, r0 @@ -954,11 +1083,22 @@ cglobal imdct_half, 3,12,8; FFTContext *s, FFTSample *output, const FFTSample *i %if ARCH_X86_64 == 0 add esp, 12 %endif +%if mmsize == 8 + femms +%endif RET %endmacro DECL_IMDCT POSROTATESHUF +%if ARCH_X86_32 +INIT_MMX 3dnow +DECL_IMDCT POSROTATESHUF_3DNOW + +INIT_MMX 3dnow2 +DECL_IMDCT POSROTATESHUF_3DNOW +%endif + INIT_YMM avx %if HAVE_AVX |