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Diffstat (limited to 'src/libffmpeg/libavcodec/i386/fft_sse.c')
-rw-r--r--src/libffmpeg/libavcodec/i386/fft_sse.c247
1 files changed, 0 insertions, 247 deletions
diff --git a/src/libffmpeg/libavcodec/i386/fft_sse.c b/src/libffmpeg/libavcodec/i386/fft_sse.c
deleted file mode 100644
index 0dc0c61c1..000000000
--- a/src/libffmpeg/libavcodec/i386/fft_sse.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * FFT/MDCT transform with SSE optimizations
- * 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 p1p1p1m1[4] __attribute__((aligned(16))) =
- { 0, 0, 0, 1 << 31 };
-
-static const int p1p1m1p1[4] __attribute__((aligned(16))) =
- { 0, 0, 1 << 31, 0 };
-
-static const int p1p1m1m1[4] __attribute__((aligned(16))) =
- { 0, 0, 1 << 31, 1 << 31 };
-
-static const int p1m1p1m1[4] __attribute__((aligned(16))) =
- { 0, 1 << 31, 0, 1 << 31 };
-
-static const int m1m1m1m1[4] __attribute__((aligned(16))) =
- { 1 << 31, 1 << 31, 1 << 31, 1 << 31 };
-
-#if 0
-static void print_v4sf(const char *str, __m128 a)
-{
- float *p = (float *)&a;
- printf("%s: %f %f %f %f\n",
- str, p[0], p[1], p[2], p[3]);
-}
-#endif
-
-/* XXX: handle reverse case */
-void ff_fft_calc_sse(FFTContext *s, FFTComplex *z)
-{
- int ln = s->nbits;
- long i, j;
- long nblocks, nloops;
- FFTComplex *p, *cptr;
-
- asm volatile(
- "movaps %0, %%xmm4 \n\t"
- "movaps %1, %%xmm5 \n\t"
- ::"m"(*p1p1m1m1),
- "m"(*(s->inverse ? p1p1m1p1 : p1p1p1m1))
- );
-
- i = 8 << ln;
- asm volatile(
- "1: \n\t"
- "sub $32, %0 \n\t"
- /* do the pass 0 butterfly */
- "movaps (%0,%1), %%xmm0 \n\t"
- "movaps %%xmm0, %%xmm1 \n\t"
- "shufps $0x4E, %%xmm0, %%xmm0 \n\t"
- "xorps %%xmm4, %%xmm1 \n\t"
- "addps %%xmm1, %%xmm0 \n\t"
- "movaps 16(%0,%1), %%xmm2 \n\t"
- "movaps %%xmm2, %%xmm3 \n\t"
- "shufps $0x4E, %%xmm2, %%xmm2 \n\t"
- "xorps %%xmm4, %%xmm3 \n\t"
- "addps %%xmm3, %%xmm2 \n\t"
- /* multiply third by -i */
- /* by toggling the sign bit */
- "shufps $0xB4, %%xmm2, %%xmm2 \n\t"
- "xorps %%xmm5, %%xmm2 \n\t"
- /* do the pass 1 butterfly */
- "movaps %%xmm0, %%xmm1 \n\t"
- "addps %%xmm2, %%xmm0 \n\t"
- "subps %%xmm2, %%xmm1 \n\t"
- "movaps %%xmm0, (%0,%1) \n\t"
- "movaps %%xmm1, 16(%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"
- "movaps (%2,%0), %%xmm1 \n\t"
- "movaps (%1,%0), %%xmm0 \n\t"
- "movaps %%xmm1, %%xmm2 \n\t"
- "shufps $0xA0, %%xmm1, %%xmm1 \n\t"
- "shufps $0xF5, %%xmm2, %%xmm2 \n\t"
- "mulps (%3,%0,2), %%xmm1 \n\t" // cre*re cim*re
- "mulps 16(%3,%0,2), %%xmm2 \n\t" // -cim*im cre*im
- "addps %%xmm2, %%xmm1 \n\t"
- "movaps %%xmm0, %%xmm3 \n\t"
- "addps %%xmm1, %%xmm0 \n\t"
- "subps %%xmm1, %%xmm3 \n\t"
- "movaps %%xmm0, (%1,%0) \n\t"
- "movaps %%xmm3, (%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);
-}
-
-void ff_imdct_calc_sse(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;
-
- asm volatile ("movaps %0, %%xmm7\n\t"::"m"(*p1m1p1m1));
-
- /* pre rotation */
- in1 = input;
- in2 = input + n2 - 4;
-
- /* Complex multiplication
- Two complex products per iteration, we could have 4 with 8 xmm
- registers, 8 with 16 xmm registers.
- Maybe we should unroll more.
- */
- for (k = 0; k < n4; k += 2) {
- asm volatile (
- "movaps %0, %%xmm0 \n\t" // xmm0 = r0 X r1 X : in2
- "movaps %1, %%xmm3 \n\t" // xmm3 = X i1 X i0: in1
- "movlps %2, %%xmm1 \n\t" // xmm1 = X X R1 R0: tcos
- "movlps %3, %%xmm2 \n\t" // xmm2 = X X I1 I0: tsin
- "shufps $95, %%xmm0, %%xmm0 \n\t" // xmm0 = r1 r1 r0 r0
- "shufps $160,%%xmm3, %%xmm3 \n\t" // xmm3 = i1 i1 i0 i0
- "unpcklps %%xmm2, %%xmm1 \n\t" // xmm1 = I1 R1 I0 R0
- "movaps %%xmm1, %%xmm2 \n\t" // xmm2 = I1 R1 I0 R0
- "xorps %%xmm7, %%xmm2 \n\t" // xmm2 = -I1 R1 -I0 R0
- "mulps %%xmm1, %%xmm0 \n\t" // xmm0 = rI rR rI rR
- "shufps $177,%%xmm2, %%xmm2 \n\t" // xmm2 = R1 -I1 R0 -I0
- "mulps %%xmm2, %%xmm3 \n\t" // xmm3 = Ri -Ii Ri -Ii
- "addps %%xmm3, %%xmm0 \n\t" // xmm0 = result
- ::"m"(in2[-2*k]), "m"(in1[2*k]),
- "m"(tcos[k]), "m"(tsin[k])
- );
- /* Should be in the same block, hack for gcc2.95 & gcc3 */
- asm (
- "movlps %%xmm0, %0 \n\t"
- "movhps %%xmm0, %1 \n\t"
- :"=m"(z[revtab[k]]), "=m"(z[revtab[k + 1]])
- );
- }
-
- ff_fft_calc_sse(&s->fft, z);
-
- /* Not currently needed, added for safety */
- asm volatile ("movaps %0, %%xmm7\n\t"::"m"(*p1m1p1m1));
-
- /* post rotation + reordering */
- for (k = 0; k < n4; k += 2) {
- asm (
- "movaps %0, %%xmm0 \n\t" // xmm0 = i1 r1 i0 r0: z
- "movlps %1, %%xmm1 \n\t" // xmm1 = X X R1 R0: tcos
- "movaps %%xmm0, %%xmm3 \n\t" // xmm3 = i1 r1 i0 r0
- "movlps %2, %%xmm2 \n\t" // xmm2 = X X I1 I0: tsin
- "shufps $160,%%xmm0, %%xmm0 \n\t" // xmm0 = r1 r1 r0 r0
- "shufps $245,%%xmm3, %%xmm3 \n\t" // xmm3 = i1 i1 i0 i0
- "unpcklps %%xmm2, %%xmm1 \n\t" // xmm1 = I1 R1 I0 R0
- "movaps %%xmm1, %%xmm2 \n\t" // xmm2 = I1 R1 I0 R0
- "xorps %%xmm7, %%xmm2 \n\t" // xmm2 = -I1 R1 -I0 R0
- "mulps %%xmm1, %%xmm0 \n\t" // xmm0 = rI rR rI rR
- "shufps $177,%%xmm2, %%xmm2 \n\t" // xmm2 = R1 -I1 R0 -I0
- "mulps %%xmm2, %%xmm3 \n\t" // xmm3 = Ri -Ii Ri -Ii
- "addps %%xmm3, %%xmm0 \n\t" // xmm0 = result
- "movaps %%xmm0, %0 \n\t"
- :"+m"(z[k])
- :"m"(tcos[k]), "m"(tsin[k])
- );
- }
-
- /*
- Mnemonics:
- 0 = z[k].re
- 1 = z[k].im
- 2 = z[k + 1].re
- 3 = z[k + 1].im
- 4 = z[-k - 2].re
- 5 = z[-k - 2].im
- 6 = z[-k - 1].re
- 7 = z[-k - 1].im
- */
- k = 16-n;
- asm volatile("movaps %0, %%xmm7 \n\t"::"m"(*m1m1m1m1));
- asm volatile(
- "1: \n\t"
- "movaps -16(%4,%0), %%xmm1 \n\t" // xmm1 = 4 5 6 7 = z[-2-k]
- "neg %0 \n\t"
- "movaps (%4,%0), %%xmm0 \n\t" // xmm0 = 0 1 2 3 = z[k]
- "xorps %%xmm7, %%xmm0 \n\t" // xmm0 = -0 -1 -2 -3
- "movaps %%xmm0, %%xmm2 \n\t" // xmm2 = -0 -1 -2 -3
- "shufps $141,%%xmm1, %%xmm0 \n\t" // xmm0 = -1 -3 4 6
- "shufps $216,%%xmm1, %%xmm2 \n\t" // xmm2 = -0 -2 5 7
- "shufps $156,%%xmm0, %%xmm0 \n\t" // xmm0 = -1 6 -3 4 !
- "shufps $156,%%xmm2, %%xmm2 \n\t" // xmm2 = -0 7 -2 5 !
- "movaps %%xmm0, (%1,%0) \n\t" // output[2*k]
- "movaps %%xmm2, (%2,%0) \n\t" // output[n2+2*k]
- "neg %0 \n\t"
- "shufps $27, %%xmm0, %%xmm0 \n\t" // xmm0 = 4 -3 6 -1
- "xorps %%xmm7, %%xmm0 \n\t" // xmm0 = -4 3 -6 1 !
- "shufps $27, %%xmm2, %%xmm2 \n\t" // xmm2 = 5 -2 7 -0 !
- "movaps %%xmm0, -16(%2,%0) \n\t" // output[n2-4-2*k]
- "movaps %%xmm2, -16(%3,%0) \n\t" // output[n-4-2*k]
- "add $16, %0 \n\t"
- "jle 1b \n\t"
- :"+r"(k)
- :"r"(output), "r"(output+n2), "r"(output+n), "r"(z+n8)
- :"memory"
- );
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 14:10:31 +0000