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author | Diego Biurrun <diego@biurrun.de> | 2008-12-22 09:12:42 +0000 |
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committer | Diego Biurrun <diego@biurrun.de> | 2008-12-22 09:12:42 +0000 |
commit | a6493a8fbd979eb96898d910b8a64df7c5eee6a5 (patch) | |
tree | 6a73c038bcc48265a8ddc4d08635b65fc8e8e706 /libavcodec/i386/flacdsp_mmx.c | |
parent | 50e3477f0f2aabcc4a192af39c4a4f87da66bb85 (diff) | |
download | ffmpeg-a6493a8fbd979eb96898d910b8a64df7c5eee6a5.tar.gz |
Rename libavcodec/i386/ --> libavcodec/x86/.
It contains optimizations that are not specific to i386 and
libavutil uses this naming scheme already.
Originally committed as revision 16270 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/i386/flacdsp_mmx.c')
-rw-r--r-- | libavcodec/i386/flacdsp_mmx.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/libavcodec/i386/flacdsp_mmx.c b/libavcodec/i386/flacdsp_mmx.c deleted file mode 100644 index 01c0d7ae8a..0000000000 --- a/libavcodec/i386/flacdsp_mmx.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * MMX optimized FLAC DSP utils - * Copyright (c) 2007 Loren Merritt - * - * 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 "libavutil/x86_cpu.h" -#include "dsputil_mmx.h" - -static void apply_welch_window_sse2(const int32_t *data, int len, double *w_data) -{ - double c = 2.0 / (len-1.0); - int n2 = len>>1; - x86_reg i = -n2*sizeof(int32_t); - x86_reg j = n2*sizeof(int32_t); - __asm__ volatile( - "movsd %0, %%xmm7 \n\t" - "movapd "MANGLE(ff_pd_1)", %%xmm6 \n\t" - "movapd "MANGLE(ff_pd_2)", %%xmm5 \n\t" - "movlhps %%xmm7, %%xmm7 \n\t" - "subpd %%xmm5, %%xmm7 \n\t" - "addsd %%xmm6, %%xmm7 \n\t" - ::"m"(c) - ); -#define WELCH(MOVPD, offset)\ - __asm__ volatile(\ - "1: \n\t"\ - "movapd %%xmm7, %%xmm1 \n\t"\ - "mulpd %%xmm1, %%xmm1 \n\t"\ - "movapd %%xmm6, %%xmm0 \n\t"\ - "subpd %%xmm1, %%xmm0 \n\t"\ - "pshufd $0x4e, %%xmm0, %%xmm1 \n\t"\ - "cvtpi2pd (%3,%0), %%xmm2 \n\t"\ - "cvtpi2pd "#offset"*4(%3,%1), %%xmm3 \n\t"\ - "mulpd %%xmm0, %%xmm2 \n\t"\ - "mulpd %%xmm1, %%xmm3 \n\t"\ - "movapd %%xmm2, (%2,%0,2) \n\t"\ - MOVPD" %%xmm3, "#offset"*8(%2,%1,2) \n\t"\ - "subpd %%xmm5, %%xmm7 \n\t"\ - "sub $8, %1 \n\t"\ - "add $8, %0 \n\t"\ - "jl 1b \n\t"\ - :"+&r"(i), "+&r"(j)\ - :"r"(w_data+n2), "r"(data+n2)\ - ); - if(len&1) - WELCH("movupd", -1) - else - WELCH("movapd", -2) -#undef WELCH -} - -void ff_flac_compute_autocorr_sse2(const int32_t *data, int len, int lag, - double *autoc) -{ - double tmp[len + lag + 2]; - double *data1 = tmp + lag; - int j; - - if((x86_reg)data1 & 15) - data1++; - - apply_welch_window_sse2(data, len, data1); - - for(j=0; j<lag; j++) - data1[j-lag]= 0.0; - data1[len] = 0.0; - - for(j=0; j<lag; j+=2){ - x86_reg i = -len*sizeof(double); - if(j == lag-2) { - __asm__ volatile( - "movsd "MANGLE(ff_pd_1)", %%xmm0 \n\t" - "movsd "MANGLE(ff_pd_1)", %%xmm1 \n\t" - "movsd "MANGLE(ff_pd_1)", %%xmm2 \n\t" - "1: \n\t" - "movapd (%4,%0), %%xmm3 \n\t" - "movupd -8(%5,%0), %%xmm4 \n\t" - "movapd (%5,%0), %%xmm5 \n\t" - "mulpd %%xmm3, %%xmm4 \n\t" - "mulpd %%xmm3, %%xmm5 \n\t" - "mulpd -16(%5,%0), %%xmm3 \n\t" - "addpd %%xmm4, %%xmm1 \n\t" - "addpd %%xmm5, %%xmm0 \n\t" - "addpd %%xmm3, %%xmm2 \n\t" - "add $16, %0 \n\t" - "jl 1b \n\t" - "movhlps %%xmm0, %%xmm3 \n\t" - "movhlps %%xmm1, %%xmm4 \n\t" - "movhlps %%xmm2, %%xmm5 \n\t" - "addsd %%xmm3, %%xmm0 \n\t" - "addsd %%xmm4, %%xmm1 \n\t" - "addsd %%xmm5, %%xmm2 \n\t" - "movsd %%xmm0, %1 \n\t" - "movsd %%xmm1, %2 \n\t" - "movsd %%xmm2, %3 \n\t" - :"+&r"(i), "=m"(autoc[j]), "=m"(autoc[j+1]), "=m"(autoc[j+2]) - :"r"(data1+len), "r"(data1+len-j) - ); - } else { - __asm__ volatile( - "movsd "MANGLE(ff_pd_1)", %%xmm0 \n\t" - "movsd "MANGLE(ff_pd_1)", %%xmm1 \n\t" - "1: \n\t" - "movapd (%3,%0), %%xmm3 \n\t" - "movupd -8(%4,%0), %%xmm4 \n\t" - "mulpd %%xmm3, %%xmm4 \n\t" - "mulpd (%4,%0), %%xmm3 \n\t" - "addpd %%xmm4, %%xmm1 \n\t" - "addpd %%xmm3, %%xmm0 \n\t" - "add $16, %0 \n\t" - "jl 1b \n\t" - "movhlps %%xmm0, %%xmm3 \n\t" - "movhlps %%xmm1, %%xmm4 \n\t" - "addsd %%xmm3, %%xmm0 \n\t" - "addsd %%xmm4, %%xmm1 \n\t" - "movsd %%xmm0, %1 \n\t" - "movsd %%xmm1, %2 \n\t" - :"+&r"(i), "=m"(autoc[j]), "=m"(autoc[j+1]) - :"r"(data1+len), "r"(data1+len-j) - ); - } - } -} |