diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2013-01-20 14:07:51 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2013-01-20 14:13:16 +0100 |
commit | c62cb1112ffc32492c99aa1e94324fc6a951abe9 (patch) | |
tree | 4ed9a1feb6ea8db5b431487e6618d1015e84eb9a /libavcodec/x86/vorbisdsp_init.c | |
parent | cf061a9c3b861a048dd5b67ded5265c6f53805e5 (diff) | |
parent | fef906c77c09940a2fdad155b2adc05080e17eda (diff) |
Merge commit 'fef906c77c09940a2fdad155b2adc05080e17eda'
* commit 'fef906c77c09940a2fdad155b2adc05080e17eda':
Move vorbis_inverse_coupling from dsputil to vorbisdspcontext.
Conflicts:
libavcodec/dsputil.c
libavcodec/x86/dsputil_mmx.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/x86/vorbisdsp_init.c')
-rw-r--r-- | libavcodec/x86/vorbisdsp_init.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libavcodec/x86/vorbisdsp_init.c b/libavcodec/x86/vorbisdsp_init.c new file mode 100644 index 0000000000..49ddf7cac8 --- /dev/null +++ b/libavcodec/x86/vorbisdsp_init.c @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu> + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#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, int 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, int 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_vorbisdsp_init_x86(VorbisDSPContext *dsp) +{ +#if HAVE_INLINE_ASM + 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; +#endif /* ARCH_X86_32 */ + if (mm_flags & AV_CPU_FLAG_SSE) + dsp->vorbis_inverse_coupling = vorbis_inverse_coupling_sse; +#endif /* HAVE_INLINE_ASM */ +} |