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vorbisdsp: convert x86 simd functions from inline asm to yasm.

tags/n1.2
Ronald S. Bultje 12 years ago
parent
0ee8293a77
commit
2e4bb99f4d
5 changed files with 92 additions and 74 deletions
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  1. +1
    -0
      libavcodec/x86/Makefile
  2. +0
    -3
      libavcodec/x86/dsputil_mmx.c
  3. +0
    -2
      libavcodec/x86/dsputil_mmx.h
  4. +83
    -0
      libavcodec/x86/vorbisdsp.asm
  5. +8
    -69
      libavcodec/x86/vorbisdsp_init.c

+ 1
- 0
libavcodec/x86/Makefile View File

@@ -62,6 +62,7 @@ YASM-OBJS-$(CONFIG_RV40_DECODER) += x86/rv34dsp.o \
x86/rv40dsp.o
YASM-OBJS-$(CONFIG_VC1_DECODER) += x86/vc1dsp.o
YASM-OBJS-$(CONFIG_VIDEODSP) += x86/videodsp.o
YASM-OBJS-$(CONFIG_VORBIS_DECODER) += x86/vorbisdsp.o
YASM-OBJS-$(CONFIG_VP3DSP) += x86/vp3dsp.o
YASM-OBJS-$(CONFIG_VP6_DECODER) += x86/vp56dsp.o
YASM-OBJS-$(CONFIG_VP8_DECODER) += x86/vp8dsp.o


+ 0
- 3
libavcodec/x86/dsputil_mmx.c View File

@@ -38,9 +38,6 @@
DECLARE_ALIGNED(8, const uint64_t, ff_bone) = 0x0101010101010101ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_wtwo) = 0x0002000200020002ULL;

DECLARE_ALIGNED(16, const uint64_t, ff_pdw_80000000)[2] =
{ 0x8000000080000000ULL, 0x8000000080000000ULL };

DECLARE_ALIGNED(16, const xmm_reg, ff_pw_1) = { 0x0001000100010001ULL, 0x0001000100010001ULL };
DECLARE_ALIGNED(16, const xmm_reg, ff_pw_2) = { 0x0002000200020002ULL, 0x0002000200020002ULL };
DECLARE_ALIGNED(16, const xmm_reg, ff_pw_3) = { 0x0003000300030003ULL, 0x0003000300030003ULL };


+ 0
- 2
libavcodec/x86/dsputil_mmx.h View File

@@ -31,8 +31,6 @@ typedef struct xmm_reg { uint64_t a, b; } xmm_reg;
extern const uint64_t ff_bone;
extern const uint64_t ff_wtwo;

extern const uint64_t ff_pdw_80000000[2];

extern const xmm_reg ff_pw_3;
extern const xmm_reg ff_pw_4;
extern const xmm_reg ff_pw_5;


+ 83
- 0
libavcodec/x86/vorbisdsp.asm View File

@@ -0,0 +1,83 @@
;******************************************************************************
;* Vorbis x86 optimizations
;* Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
;*
;* 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/x86util.asm"

SECTION_RODATA

pdw_80000000: times 4 dd 0x80000000

SECTION .text

%if ARCH_X86_32
INIT_MMX 3dnow
cglobal vorbis_inverse_coupling, 3, 3, 6, mag, ang, block_size
pxor m7, m7
lea magq, [magq+block_sizeq*4]
lea angq, [angq+block_sizeq*4]
neg block_sizeq
.loop:
mova m0, [magq+block_sizeq*4]
mova m1, [angq+block_sizeq*4]
mova m2, m0
mova m3, m1
pfcmpge m2, m7 ; m <= 0.0
pfcmpge m3, m7 ; a <= 0.0
pslld m2, 31 ; keep only the sign bit
pxor m1, m2
mova m4, m3
pand m3, m1
pandn m4, m1
pfadd m3, m0 ; a = m + ((a < 0) & (a ^ sign(m)))
pfsub m0, m4 ; m = m + ((a > 0) & (a ^ sign(m)))
mova [angq+block_sizeq*4], m3
mova [magq+block_sizeq*4], m0
add block_sizeq, 2
jl .loop
femms
RET
%endif

INIT_XMM sse
cglobal vorbis_inverse_coupling, 3, 4, 6, mag, ang, block_size, cntr
mova m5, [pdw_80000000]
xor cntrq, cntrq
align 16
.loop:
mova m0, [magq+cntrq*4]
mova m1, [angq+cntrq*4]
xorps m2, m2
xorps m3, m3
cmpleps m2, m0 ; m <= 0.0
cmpleps m3, m1 ; a <= 0.0
andps m2, m5 ; keep only the sign bit
xorps m1, m2
mova m4, m3
andps m3, m1
andnps m4, m1
addps m3, m0 ; a = m + ((a < 0) & (a ^ sign(m)))
subps m0, m4 ; m = m + ((a > 0) & (a ^ sign(m)))
mova [angq+cntrq*4], m3
mova [magq+cntrq*4], m0
add cntrq, 4
cmp cntrq, block_sizeq
jl .loop
RET

+ 8
- 69
libavcodec/x86/vorbisdsp_init.c View File

@@ -21,83 +21,22 @@
#include "config.h"
#include "libavutil/cpu.h"
#include "libavcodec/vorbisdsp.h"
#include "dsputil_mmx.h" // for ff_pdw_80000000

#if HAVE_INLINE_ASM
#if ARCH_X86_32
static void vorbis_inverse_coupling_3dnow(float *mag, float *ang,
intptr_t blocksize)
{
int i;
__asm__ volatile ("pxor %%mm7, %%mm7":);
for (i = 0; i < blocksize; i += 2) {
__asm__ volatile (
"movq %0, %%mm0 \n\t"
"movq %1, %%mm1 \n\t"
"movq %%mm0, %%mm2 \n\t"
"movq %%mm1, %%mm3 \n\t"
"pfcmpge %%mm7, %%mm2 \n\t" // m <= 0.0
"pfcmpge %%mm7, %%mm3 \n\t" // a <= 0.0
"pslld $31, %%mm2 \n\t" // keep only the sign bit
"pxor %%mm2, %%mm1 \n\t"
"movq %%mm3, %%mm4 \n\t"
"pand %%mm1, %%mm3 \n\t"
"pandn %%mm1, %%mm4 \n\t"
"pfadd %%mm0, %%mm3 \n\t" // a = m + ((a < 0) & (a ^ sign(m)))
"pfsub %%mm4, %%mm0 \n\t" // m = m + ((a > 0) & (a ^ sign(m)))
"movq %%mm3, %1 \n\t"
"movq %%mm0, %0 \n\t"
: "+m"(mag[i]), "+m"(ang[i])
:: "memory"
);
}
__asm__ volatile ("femms");
}
#endif

static void vorbis_inverse_coupling_sse(float *mag, float *ang,
intptr_t blocksize)
{
int i;

__asm__ volatile (
"movaps %0, %%xmm5 \n\t"
:: "m"(ff_pdw_80000000[0])
);
for (i = 0; i < blocksize; i += 4) {
__asm__ volatile (
"movaps %0, %%xmm0 \n\t"
"movaps %1, %%xmm1 \n\t"
"xorps %%xmm2, %%xmm2 \n\t"
"xorps %%xmm3, %%xmm3 \n\t"
"cmpleps %%xmm0, %%xmm2 \n\t" // m <= 0.0
"cmpleps %%xmm1, %%xmm3 \n\t" // a <= 0.0
"andps %%xmm5, %%xmm2 \n\t" // keep only the sign bit
"xorps %%xmm2, %%xmm1 \n\t"
"movaps %%xmm3, %%xmm4 \n\t"
"andps %%xmm1, %%xmm3 \n\t"
"andnps %%xmm1, %%xmm4 \n\t"
"addps %%xmm0, %%xmm3 \n\t" // a = m + ((a < 0) & (a ^ sign(m)))
"subps %%xmm4, %%xmm0 \n\t" // m = m + ((a > 0) & (a ^ sign(m)))
"movaps %%xmm3, %1 \n\t"
"movaps %%xmm0, %0 \n\t"
: "+m"(mag[i]), "+m"(ang[i])
:: "memory"
);
}
}
#endif
void ff_vorbis_inverse_coupling_3dnow(float *mag, float *ang,
intptr_t blocksize);
void ff_vorbis_inverse_coupling_sse(float *mag, float *ang,
intptr_t blocksize);

void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp)
{
#if HAVE_INLINE_ASM
#if HAVE_YASM
int mm_flags = av_get_cpu_flags();

#if ARCH_X86_32
if (mm_flags & AV_CPU_FLAG_3DNOW)
dsp->vorbis_inverse_coupling = vorbis_inverse_coupling_3dnow;
dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_3dnow;
#endif /* ARCH_X86_32 */
if (mm_flags & AV_CPU_FLAG_SSE)
dsp->vorbis_inverse_coupling = vorbis_inverse_coupling_sse;
#endif /* HAVE_INLINE_ASM */
dsp->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_sse;
#endif /* HAVE_YASM */
}

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