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Diffstat (limited to 'contrib/ffmpeg/libavcodec/i386/fft_3dn2.c')
-rw-r--r--contrib/ffmpeg/libavcodec/i386/fft_3dn2.c210
1 files changed, 0 insertions, 210 deletions
diff --git a/contrib/ffmpeg/libavcodec/i386/fft_3dn2.c b/contrib/ffmpeg/libavcodec/i386/fft_3dn2.c
deleted file mode 100644
index a4fe5f0b6..000000000
--- a/contrib/ffmpeg/libavcodec/i386/fft_3dn2.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * FFT/MDCT transform with Extended 3DNow! optimizations
- * Copyright (c) 2006 Zuxy MENG Jie, Loren Merritt
- * Based on fft_sse.c copyright (c) 2002 Fabrice Bellard.
- *
- * 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 "../dsputil.h"
-
-static const int p1m1[2] __attribute__((aligned(8))) =
- { 0, 1 << 31 };
-
-static const int m1p1[2] __attribute__((aligned(8))) =
- { 1 << 31, 0 };
-
-void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z)
-{
- int ln = s->nbits;
- long i, j;
- long nblocks, nloops;
- FFTComplex *p, *cptr;
-
- asm volatile(
- /* FEMMS is not a must here but recommended by AMD */
- "femms \n\t"
- "movq %0, %%mm7 \n\t"
- ::"m"(*(s->inverse ? m1p1 : p1m1))
- );
-
- i = 8 << ln;
- asm volatile(
- "1: \n\t"
- "sub $32, %0 \n\t"
- "movq (%0,%1), %%mm0 \n\t"
- "movq 16(%0,%1), %%mm1 \n\t"
- "movq 8(%0,%1), %%mm2 \n\t"
- "movq 24(%0,%1), %%mm3 \n\t"
- "movq %%mm0, %%mm4 \n\t"
- "movq %%mm1, %%mm5 \n\t"
- "pfadd %%mm2, %%mm0 \n\t"
- "pfadd %%mm3, %%mm1 \n\t"
- "pfsub %%mm2, %%mm4 \n\t"
- "pfsub %%mm3, %%mm5 \n\t"
- "movq %%mm0, %%mm2 \n\t"
- "pswapd %%mm5, %%mm5 \n\t"
- "movq %%mm4, %%mm3 \n\t"
- "pxor %%mm7, %%mm5 \n\t"
- "pfadd %%mm1, %%mm0 \n\t"
- "pfadd %%mm5, %%mm4 \n\t"
- "pfsub %%mm1, %%mm2 \n\t"
- "pfsub %%mm5, %%mm3 \n\t"
- "movq %%mm0, (%0,%1) \n\t"
- "movq %%mm4, 8(%0,%1) \n\t"
- "movq %%mm2, 16(%0,%1) \n\t"
- "movq %%mm3, 24(%0,%1) \n\t"
- "jg 1b \n\t"
- :"+r"(i)
- :"r"(z)
- );
- /* pass 2 .. ln-1 */
-
- nblocks = 1 << (ln-3);
- nloops = 1 << 2;
- cptr = s->exptab1;
- do {
- p = z;
- j = nblocks;
- do {
- i = nloops*8;
- asm volatile(
- "1: \n\t"
- "sub $16, %0 \n\t"
- "movq (%1,%0), %%mm0 \n\t"
- "movq 8(%1,%0), %%mm1 \n\t"
- "movq (%2,%0), %%mm2 \n\t"
- "movq 8(%2,%0), %%mm3 \n\t"
- "movq (%3,%0,2), %%mm4 \n\t"
- "movq 8(%3,%0,2), %%mm5 \n\t"
- "pswapd %%mm4, %%mm6 \n\t" // no need for cptr[2] & cptr[3]
- "pswapd %%mm5, %%mm7 \n\t"
- "pfmul %%mm2, %%mm4 \n\t" // cre*re cim*im
- "pfmul %%mm3, %%mm5 \n\t"
- "pfmul %%mm2, %%mm6 \n\t" // cim*re cre*im
- "pfmul %%mm3, %%mm7 \n\t"
- "pfpnacc %%mm6, %%mm4 \n\t" // cre*re-cim*im cim*re+cre*im
- "pfpnacc %%mm7, %%mm5 \n\t"
- "movq %%mm0, %%mm2 \n\t"
- "movq %%mm1, %%mm3 \n\t"
- "pfadd %%mm4, %%mm0 \n\t"
- "pfadd %%mm5, %%mm1 \n\t"
- "pfsub %%mm4, %%mm2 \n\t"
- "pfsub %%mm5, %%mm3 \n\t"
- "movq %%mm0, (%1,%0) \n\t"
- "movq %%mm1, 8(%1,%0) \n\t"
- "movq %%mm2, (%2,%0) \n\t"
- "movq %%mm3, 8(%2,%0) \n\t"
- "jg 1b \n\t"
- :"+r"(i)
- :"r"(p), "r"(p + nloops), "r"(cptr)
- );
- p += nloops*2;
- } while (--j);
- cptr += nloops*2;
- nblocks >>= 1;
- nloops <<= 1;
- } while (nblocks != 0);
- asm volatile("femms");
-}
-
-void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
- const FFTSample *input, FFTSample *tmp)
-{
- long k, n8, n4, n2, n;
- const uint16_t *revtab = s->fft.revtab;
- const FFTSample *tcos = s->tcos;
- const FFTSample *tsin = s->tsin;
- const FFTSample *in1, *in2;
- FFTComplex *z = (FFTComplex *)tmp;
-
- n = 1 << s->nbits;
- n2 = n >> 1;
- n4 = n >> 2;
- n8 = n >> 3;
-
- /* pre rotation */
- in1 = input;
- in2 = input + n2 - 1;
- 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\t"
- "movd %2, %%mm1 \n\t"
- "punpckldq %1, %%mm0 \n\t"
- "punpckldq %3, %%mm1 \n\t"
- "movq %%mm0, %%mm2 \n\t"
- "pfmul %%mm1, %%mm0 \n\t"
- "pswapd %%mm1, %%mm1 \n\t"
- "pfmul %%mm1, %%mm2 \n\t"
- "pfpnacc %%mm2, %%mm0 \n\t"
- ::"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_calc(&s->fft, z);
-
- /* post rotation + reordering */
- for(k = 0; k < n4; k++) {
- asm volatile(
- "movq %0, %%mm0 \n\t"
- "movd %1, %%mm1 \n\t"
- "punpckldq %2, %%mm1 \n\t"
- "movq %%mm0, %%mm2 \n\t"
- "pfmul %%mm1, %%mm0 \n\t"
- "pswapd %%mm1, %%mm1 \n\t"
- "pfmul %%mm1, %%mm2 \n\t"
- "pfpnacc %%mm2, %%mm0 \n\t"
- "movq %%mm0, %0 \n\t"
- :"+m"(z[k])
- :"m"(tcos[k]), "m"(tsin[k])
- );
- }
-
- k = n-8;
- asm volatile("movd %0, %%mm7" ::"r"(1<<31));
- asm volatile(
- "1: \n\t"
- "movq (%4,%0), %%mm0 \n\t" // z[n8+k]
- "neg %0 \n\t"
- "pswapd -8(%4,%0), %%mm1 \n\t" // z[n8-1-k]
- "movq %%mm0, %%mm2 \n\t"
- "pxor %%mm7, %%mm2 \n\t"
- "punpckldq %%mm1, %%mm2 \n\t"
- "pswapd %%mm2, %%mm3 \n\t"
- "punpckhdq %%mm1, %%mm0 \n\t"
- "pswapd %%mm0, %%mm4 \n\t"
- "pxor %%mm7, %%mm0 \n\t"
- "pxor %%mm7, %%mm4 \n\t"
- "movq %%mm3, -8(%3,%0) \n\t" // output[n-2-2*k] = { z[n8-1-k].im, -z[n8+k].re }
- "movq %%mm4, -8(%2,%0) \n\t" // output[n2-2-2*k]= { -z[n8-1-k].re, z[n8+k].im }
- "neg %0 \n\t"
- "movq %%mm0, (%1,%0) \n\t" // output[2*k] = { -z[n8+k].im, z[n8-1-k].re }
- "movq %%mm2, (%2,%0) \n\t" // output[n2+2*k] = { -z[n8+k].re, z[n8-1-k].im }
- "sub $8, %0 \n\t"
- "jge 1b \n\t"
- :"+r"(k)
- :"r"(output), "r"(output+n2), "r"(output+n), "r"(z+n8)
- :"memory"
- );
- asm volatile("femms");
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 09:10:37 +0000