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authorDiego Biurrun <diego@biurrun.de>2008-12-22 09:12:42 +0000
committerDiego Biurrun <diego@biurrun.de>2008-12-22 09:12:42 +0000
commita6493a8fbd979eb96898d910b8a64df7c5eee6a5 (patch)
tree6a73c038bcc48265a8ddc4d08635b65fc8e8e706 /libavcodec/i386/flacdsp_mmx.c
parent50e3477f0f2aabcc4a192af39c4a4f87da66bb85 (diff)
downloadffmpeg-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.c139
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)
- );
- }
- }
-}