summaryrefslogtreecommitdiffstats
path: root/liba52/imdct.c
diff options
context:
space:
mode:
Diffstat (limited to 'liba52/imdct.c')
-rw-r--r--liba52/imdct.c1304
1 files changed, 0 insertions, 1304 deletions
diff --git a/liba52/imdct.c b/liba52/imdct.c
deleted file mode 100644
index 8220cbfb7b..0000000000
--- a/liba52/imdct.c
+++ /dev/null
@@ -1,1304 +0,0 @@
-/*
- * imdct.c
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * The ifft algorithms in this file have been largely inspired by Dan
- * Bernstein's work, djbfft, available at http://cr.yp.to/djbfft.html
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * Modified for use with MPlayer, changes contained in liba52_changes.diff.
- * detailed changelog at http://svn.mplayerhq.hu/mplayer/trunk/
- * $Id$
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * SSE optimizations from Michael Niedermayer (michaelni@gmx.at)
- * 3DNOW optimizations from Nick Kurshev <nickols_k@mail.ru>
- * michael did port them from libac3 (untested, perhaps totally broken)
- * AltiVec optimizations from Romain Dolbeau (romain@dolbeau.org)
- */
-
-#include "config.h"
-
-#include <math.h>
-#include <stdio.h>
-#ifdef LIBA52_DJBFFT
-#include <fftc4.h>
-#endif
-#ifndef M_PI
-#define M_PI 3.1415926535897932384626433832795029
-#endif
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_internal.h"
-#include "mm_accel.h"
-#include "mangle.h"
-
-void (*a52_imdct_512) (sample_t * data, sample_t * delay, sample_t bias);
-
-#if CONFIG_RUNTIME_CPUDETECT
-#undef HAVE_AMD3DNOWEXT
-#define HAVE_AMD3DNOWEXT 0
-#endif
-
-typedef struct complex_s {
- sample_t real;
- sample_t imag;
-} complex_t;
-
-static const int pm128[128] attribute_used __attribute__((aligned(16))) =
-{
- 0, 16, 32, 48, 64, 80, 96, 112, 8, 40, 72, 104, 24, 56, 88, 120,
- 4, 20, 36, 52, 68, 84, 100, 116, 12, 28, 44, 60, 76, 92, 108, 124,
- 2, 18, 34, 50, 66, 82, 98, 114, 10, 42, 74, 106, 26, 58, 90, 122,
- 6, 22, 38, 54, 70, 86, 102, 118, 14, 46, 78, 110, 30, 62, 94, 126,
- 1, 17, 33, 49, 65, 81, 97, 113, 9, 41, 73, 105, 25, 57, 89, 121,
- 5, 21, 37, 53, 69, 85, 101, 117, 13, 29, 45, 61, 77, 93, 109, 125,
- 3, 19, 35, 51, 67, 83, 99, 115, 11, 43, 75, 107, 27, 59, 91, 123,
- 7, 23, 39, 55, 71, 87, 103, 119, 15, 31, 47, 63, 79, 95, 111, 127
-};
-
-static uint8_t attribute_used bit_reverse_512[] = {
- 0x00, 0x40, 0x20, 0x60, 0x10, 0x50, 0x30, 0x70,
- 0x08, 0x48, 0x28, 0x68, 0x18, 0x58, 0x38, 0x78,
- 0x04, 0x44, 0x24, 0x64, 0x14, 0x54, 0x34, 0x74,
- 0x0c, 0x4c, 0x2c, 0x6c, 0x1c, 0x5c, 0x3c, 0x7c,
- 0x02, 0x42, 0x22, 0x62, 0x12, 0x52, 0x32, 0x72,
- 0x0a, 0x4a, 0x2a, 0x6a, 0x1a, 0x5a, 0x3a, 0x7a,
- 0x06, 0x46, 0x26, 0x66, 0x16, 0x56, 0x36, 0x76,
- 0x0e, 0x4e, 0x2e, 0x6e, 0x1e, 0x5e, 0x3e, 0x7e,
- 0x01, 0x41, 0x21, 0x61, 0x11, 0x51, 0x31, 0x71,
- 0x09, 0x49, 0x29, 0x69, 0x19, 0x59, 0x39, 0x79,
- 0x05, 0x45, 0x25, 0x65, 0x15, 0x55, 0x35, 0x75,
- 0x0d, 0x4d, 0x2d, 0x6d, 0x1d, 0x5d, 0x3d, 0x7d,
- 0x03, 0x43, 0x23, 0x63, 0x13, 0x53, 0x33, 0x73,
- 0x0b, 0x4b, 0x2b, 0x6b, 0x1b, 0x5b, 0x3b, 0x7b,
- 0x07, 0x47, 0x27, 0x67, 0x17, 0x57, 0x37, 0x77,
- 0x0f, 0x4f, 0x2f, 0x6f, 0x1f, 0x5f, 0x3f, 0x7f};
-
-static uint8_t fftorder[] = {
- 0,128, 64,192, 32,160,224, 96, 16,144, 80,208,240,112, 48,176,
- 8,136, 72,200, 40,168,232,104,248,120, 56,184, 24,152,216, 88,
- 4,132, 68,196, 36,164,228,100, 20,148, 84,212,244,116, 52,180,
- 252,124, 60,188, 28,156,220, 92, 12,140, 76,204,236,108, 44,172,
- 2,130, 66,194, 34,162,226, 98, 18,146, 82,210,242,114, 50,178,
- 10,138, 74,202, 42,170,234,106,250,122, 58,186, 26,154,218, 90,
- 254,126, 62,190, 30,158,222, 94, 14,142, 78,206,238,110, 46,174,
- 6,134, 70,198, 38,166,230,102,246,118, 54,182, 22,150,214, 86
-};
-
-static complex_t __attribute__((aligned(16))) buf[128];
-
-/* Twiddle factor LUT */
-static complex_t __attribute__((aligned(16))) w_1[1];
-static complex_t __attribute__((aligned(16))) w_2[2];
-static complex_t __attribute__((aligned(16))) w_4[4];
-static complex_t __attribute__((aligned(16))) w_8[8];
-static complex_t __attribute__((aligned(16))) w_16[16];
-static complex_t __attribute__((aligned(16))) w_32[32];
-static complex_t __attribute__((aligned(16))) w_64[64];
-static complex_t __attribute__((aligned(16))) * w[7] = {w_1, w_2, w_4, w_8, w_16, w_32, w_64};
-
-/* Twiddle factors for IMDCT */
-static sample_t __attribute__((aligned(16))) xcos1[128];
-static sample_t __attribute__((aligned(16))) xsin1[128];
-
-#if ARCH_X86 || ARCH_X86_64
-// NOTE: SSE needs 16byte alignment or it will segfault
-//
-static float __attribute__((aligned(16))) sseSinCos1c[256];
-static float __attribute__((aligned(16))) sseSinCos1d[256];
-static float attribute_used __attribute__((aligned(16))) ps111_1[4]={1,1,1,-1};
-//static float __attribute__((aligned(16))) sseW0[4];
-static float __attribute__((aligned(16))) sseW1[8];
-static float __attribute__((aligned(16))) sseW2[16];
-static float __attribute__((aligned(16))) sseW3[32];
-static float __attribute__((aligned(16))) sseW4[64];
-static float __attribute__((aligned(16))) sseW5[128];
-static float __attribute__((aligned(16))) sseW6[256];
-static float __attribute__((aligned(16))) *sseW[7]=
- {NULL /*sseW0*/,sseW1,sseW2,sseW3,sseW4,sseW5,sseW6};
-static float __attribute__((aligned(16))) sseWindow[512];
-#endif
-
-/* Root values for IFFT */
-static sample_t roots16[3];
-static sample_t roots32[7];
-static sample_t roots64[15];
-static sample_t roots128[31];
-
-/* Twiddle factors for IMDCT */
-static complex_t pre1[128];
-static complex_t post1[64];
-static complex_t pre2[64];
-static complex_t post2[32];
-
-static sample_t a52_imdct_window[256];
-
-static void (* ifft128) (complex_t * buf);
-static void (* ifft64) (complex_t * buf);
-
-static inline void ifft2 (complex_t * buf)
-{
- double r, i;
-
- r = buf[0].real;
- i = buf[0].imag;
- buf[0].real += buf[1].real;
- buf[0].imag += buf[1].imag;
- buf[1].real = r - buf[1].real;
- buf[1].imag = i - buf[1].imag;
-}
-
-static inline void ifft4 (complex_t * buf)
-{
- double tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
-
- tmp1 = buf[0].real + buf[1].real;
- tmp2 = buf[3].real + buf[2].real;
- tmp3 = buf[0].imag + buf[1].imag;
- tmp4 = buf[2].imag + buf[3].imag;
- tmp5 = buf[0].real - buf[1].real;
- tmp6 = buf[0].imag - buf[1].imag;
- tmp7 = buf[2].imag - buf[3].imag;
- tmp8 = buf[3].real - buf[2].real;
-
- buf[0].real = tmp1 + tmp2;
- buf[0].imag = tmp3 + tmp4;
- buf[2].real = tmp1 - tmp2;
- buf[2].imag = tmp3 - tmp4;
- buf[1].real = tmp5 + tmp7;
- buf[1].imag = tmp6 + tmp8;
- buf[3].real = tmp5 - tmp7;
- buf[3].imag = tmp6 - tmp8;
-}
-
-/* the basic split-radix ifft butterfly */
-
-#define BUTTERFLY(a0,a1,a2,a3,wr,wi) do { \
- tmp5 = a2.real * wr + a2.imag * wi; \
- tmp6 = a2.imag * wr - a2.real * wi; \
- tmp7 = a3.real * wr - a3.imag * wi; \
- tmp8 = a3.imag * wr + a3.real * wi; \
- tmp1 = tmp5 + tmp7; \
- tmp2 = tmp6 + tmp8; \
- tmp3 = tmp6 - tmp8; \
- tmp4 = tmp7 - tmp5; \
- a2.real = a0.real - tmp1; \
- a2.imag = a0.imag - tmp2; \
- a3.real = a1.real - tmp3; \
- a3.imag = a1.imag - tmp4; \
- a0.real += tmp1; \
- a0.imag += tmp2; \
- a1.real += tmp3; \
- a1.imag += tmp4; \
-} while (0)
-
-/* split-radix ifft butterfly, specialized for wr=1 wi=0 */
-
-#define BUTTERFLY_ZERO(a0,a1,a2,a3) do { \
- tmp1 = a2.real + a3.real; \
- tmp2 = a2.imag + a3.imag; \
- tmp3 = a2.imag - a3.imag; \
- tmp4 = a3.real - a2.real; \
- a2.real = a0.real - tmp1; \
- a2.imag = a0.imag - tmp2; \
- a3.real = a1.real - tmp3; \
- a3.imag = a1.imag - tmp4; \
- a0.real += tmp1; \
- a0.imag += tmp2; \
- a1.real += tmp3; \
- a1.imag += tmp4; \
-} while (0)
-
-/* split-radix ifft butterfly, specialized for wr=wi */
-
-#define BUTTERFLY_HALF(a0,a1,a2,a3,w) do { \
- tmp5 = (a2.real + a2.imag) * w; \
- tmp6 = (a2.imag - a2.real) * w; \
- tmp7 = (a3.real - a3.imag) * w; \
- tmp8 = (a3.imag + a3.real) * w; \
- tmp1 = tmp5 + tmp7; \
- tmp2 = tmp6 + tmp8; \
- tmp3 = tmp6 - tmp8; \
- tmp4 = tmp7 - tmp5; \
- a2.real = a0.real - tmp1; \
- a2.imag = a0.imag - tmp2; \
- a3.real = a1.real - tmp3; \
- a3.imag = a1.imag - tmp4; \
- a0.real += tmp1; \
- a0.imag += tmp2; \
- a1.real += tmp3; \
- a1.imag += tmp4; \
-} while (0)
-
-static inline void ifft8 (complex_t * buf)
-{
- double tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
-
- ifft4 (buf);
- ifft2 (buf + 4);
- ifft2 (buf + 6);
- BUTTERFLY_ZERO (buf[0], buf[2], buf[4], buf[6]);
- BUTTERFLY_HALF (buf[1], buf[3], buf[5], buf[7], roots16[1]);
-}
-
-static void ifft_pass (complex_t * buf, sample_t * weight, int n)
-{
- complex_t * buf1;
- complex_t * buf2;
- complex_t * buf3;
- double tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
- int i;
-
- buf++;
- buf1 = buf + n;
- buf2 = buf + 2 * n;
- buf3 = buf + 3 * n;
-
- BUTTERFLY_ZERO (buf[-1], buf1[-1], buf2[-1], buf3[-1]);
-
- i = n - 1;
-
- do {
- BUTTERFLY (buf[0], buf1[0], buf2[0], buf3[0], weight[n], weight[2*i]);
- buf++;
- buf1++;
- buf2++;
- buf3++;
- weight++;
- } while (--i);
-}
-
-static void ifft16 (complex_t * buf)
-{
- ifft8 (buf);
- ifft4 (buf + 8);
- ifft4 (buf + 12);
- ifft_pass (buf, roots16 - 4, 4);
-}
-
-static void ifft32 (complex_t * buf)
-{
- ifft16 (buf);
- ifft8 (buf + 16);
- ifft8 (buf + 24);
- ifft_pass (buf, roots32 - 8, 8);
-}
-
-static void ifft64_c (complex_t * buf)
-{
- ifft32 (buf);
- ifft16 (buf + 32);
- ifft16 (buf + 48);
- ifft_pass (buf, roots64 - 16, 16);
-}
-
-static void ifft128_c (complex_t * buf)
-{
- ifft32 (buf);
- ifft16 (buf + 32);
- ifft16 (buf + 48);
- ifft_pass (buf, roots64 - 16, 16);
-
- ifft32 (buf + 64);
- ifft32 (buf + 96);
- ifft_pass (buf, roots128 - 32, 32);
-}
-
-void imdct_do_512 (sample_t * data, sample_t * delay, sample_t bias)
-{
- int i, k;
- sample_t t_r, t_i, a_r, a_i, b_r, b_i, w_1, w_2;
- const sample_t * window = a52_imdct_window;
- complex_t buf[128];
-
- for (i = 0; i < 128; i++) {
- k = fftorder[i];
- t_r = pre1[i].real;
- t_i = pre1[i].imag;
-
- buf[i].real = t_i * data[255-k] + t_r * data[k];
- buf[i].imag = t_r * data[255-k] - t_i * data[k];
- }
-
- ifft128 (buf);
-
- /* Post IFFT complex multiply plus IFFT complex conjugate*/
- /* Window and convert to real valued signal */
- for (i = 0; i < 64; i++) {
- /* y[n] = z[n] * (xcos1[n] + j * xsin1[n]) ; */
- t_r = post1[i].real;
- t_i = post1[i].imag;
-
- a_r = t_r * buf[i].real + t_i * buf[i].imag;
- a_i = t_i * buf[i].real - t_r * buf[i].imag;
- b_r = t_i * buf[127-i].real + t_r * buf[127-i].imag;
- b_i = t_r * buf[127-i].real - t_i * buf[127-i].imag;
-
- w_1 = window[2*i];
- w_2 = window[255-2*i];
- data[2*i] = delay[2*i] * w_2 - a_r * w_1 + bias;
- data[255-2*i] = delay[2*i] * w_1 + a_r * w_2 + bias;
- delay[2*i] = a_i;
-
- w_1 = window[2*i+1];
- w_2 = window[254-2*i];
- data[2*i+1] = delay[2*i+1] * w_2 + b_r * w_1 + bias;
- data[254-2*i] = delay[2*i+1] * w_1 - b_r * w_2 + bias;
- delay[2*i+1] = b_i;
- }
-}
-
-#if HAVE_ALTIVEC
-
-#ifdef HAVE_ALTIVEC_H
-#include <altivec.h>
-#endif
-
-// used to build registers permutation vectors (vcprm)
-// the 's' are for words in the _s_econd vector
-#define WORD_0 0x00,0x01,0x02,0x03
-#define WORD_1 0x04,0x05,0x06,0x07
-#define WORD_2 0x08,0x09,0x0a,0x0b
-#define WORD_3 0x0c,0x0d,0x0e,0x0f
-#define WORD_s0 0x10,0x11,0x12,0x13
-#define WORD_s1 0x14,0x15,0x16,0x17
-#define WORD_s2 0x18,0x19,0x1a,0x1b
-#define WORD_s3 0x1c,0x1d,0x1e,0x1f
-
-#define vcprm(a,b,c,d) (const vector unsigned char){WORD_ ## a, WORD_ ## b, WORD_ ## c, WORD_ ## d}
-#define vcii(a,b,c,d) (const vector float){FLOAT_ ## a, FLOAT_ ## b, FLOAT_ ## c, FLOAT_ ## d}
-
-#define FOUROF(a) {a,a,a,a}
-
-// vcprmle is used to keep the same index as in the SSE version.
-// it's the same as vcprm, with the index inversed
-// ('le' is Little Endian)
-#define vcprmle(a,b,c,d) vcprm(d,c,b,a)
-
-// used to build inverse/identity vectors (vcii)
-// n is _n_egative, p is _p_ositive
-#define FLOAT_n -1.
-#define FLOAT_p 1.
-
-
-void
-imdct_do_512_altivec(sample_t data[],sample_t delay[], sample_t bias)
-{
- int i;
- int k;
- int p,q;
- int m;
- long two_m;
- long two_m_plus_one;
-
- sample_t tmp_b_i;
- sample_t tmp_b_r;
- sample_t tmp_a_i;
- sample_t tmp_a_r;
-
- sample_t *data_ptr;
- sample_t *delay_ptr;
- sample_t *window_ptr;
-
- /* 512 IMDCT with source and dest data in 'data' */
-
- /* Pre IFFT complex multiply plus IFFT cmplx conjugate & reordering*/
- for( i=0; i < 128; i++) {
- /* z[i] = (X[256-2*i-1] + j * X[2*i]) * (xcos1[i] + j * xsin1[i]) ; */
- int j= bit_reverse_512[i];
- buf[i].real = (data[256-2*j-1] * xcos1[j]) - (data[2*j] * xsin1[j]);
- buf[i].imag = -1.0 * ((data[2*j] * xcos1[j]) + (data[256-2*j-1] * xsin1[j]));
- }
-
- /* 1. iteration */
- for(i = 0; i < 128; i += 2) {
-#if 0
- tmp_a_r = buf[i].real;
- tmp_a_i = buf[i].imag;
- tmp_b_r = buf[i+1].real;
- tmp_b_i = buf[i+1].imag;
- buf[i].real = tmp_a_r + tmp_b_r;
- buf[i].imag = tmp_a_i + tmp_b_i;
- buf[i+1].real = tmp_a_r - tmp_b_r;
- buf[i+1].imag = tmp_a_i - tmp_b_i;
-#else
- vector float temp, bufv;
-
- bufv = vec_ld(i << 3, (float*)buf);
- temp = vec_perm(bufv, bufv, vcprm(2,3,0,1));
- bufv = vec_madd(bufv, vcii(p,p,n,n), temp);
- vec_st(bufv, i << 3, (float*)buf);
-#endif
- }
-
- /* 2. iteration */
- // Note w[1]={{1,0}, {0,-1}}
- for(i = 0; i < 128; i += 4) {
-#if 0
- tmp_a_r = buf[i].real;
- tmp_a_i = buf[i].imag;
- tmp_b_r = buf[i+2].real;
- tmp_b_i = buf[i+2].imag;
- buf[i].real = tmp_a_r + tmp_b_r;
- buf[i].imag = tmp_a_i + tmp_b_i;
- buf[i+2].real = tmp_a_r - tmp_b_r;
- buf[i+2].imag = tmp_a_i - tmp_b_i;
- tmp_a_r = buf[i+1].real;
- tmp_a_i = buf[i+1].imag;
- /* WARNING: im <-> re here ! */
- tmp_b_r = buf[i+3].imag;
- tmp_b_i = buf[i+3].real;
- buf[i+1].real = tmp_a_r + tmp_b_r;
- buf[i+1].imag = tmp_a_i - tmp_b_i;
- buf[i+3].real = tmp_a_r - tmp_b_r;
- buf[i+3].imag = tmp_a_i + tmp_b_i;
-#else
- vector float buf01, buf23, temp1, temp2;
-
- buf01 = vec_ld((i + 0) << 3, (float*)buf);
- buf23 = vec_ld((i + 2) << 3, (float*)buf);
- buf23 = vec_perm(buf23,buf23,vcprm(0,1,3,2));
-
- temp1 = vec_madd(buf23, vcii(p,p,p,n), buf01);
- temp2 = vec_madd(buf23, vcii(n,n,n,p), buf01);
-
- vec_st(temp1, (i + 0) << 3, (float*)buf);
- vec_st(temp2, (i + 2) << 3, (float*)buf);
-#endif
- }
-
- /* 3. iteration */
- for(i = 0; i < 128; i += 8) {
-#if 0
- tmp_a_r = buf[i].real;
- tmp_a_i = buf[i].imag;
- tmp_b_r = buf[i+4].real;
- tmp_b_i = buf[i+4].imag;
- buf[i].real = tmp_a_r + tmp_b_r;
- buf[i].imag = tmp_a_i + tmp_b_i;
- buf[i+4].real = tmp_a_r - tmp_b_r;
- buf[i+4].imag = tmp_a_i - tmp_b_i;
- tmp_a_r = buf[1+i].real;
- tmp_a_i = buf[1+i].imag;
- tmp_b_r = (buf[i+5].real + buf[i+5].imag) * w[2][1].real;
- tmp_b_i = (buf[i+5].imag - buf[i+5].real) * w[2][1].real;
- buf[1+i].real = tmp_a_r + tmp_b_r;
- buf[1+i].imag = tmp_a_i + tmp_b_i;
- buf[i+5].real = tmp_a_r - tmp_b_r;
- buf[i+5].imag = tmp_a_i - tmp_b_i;
- tmp_a_r = buf[i+2].real;
- tmp_a_i = buf[i+2].imag;
- /* WARNING re <-> im & sign */
- tmp_b_r = buf[i+6].imag;
- tmp_b_i = - buf[i+6].real;
- buf[i+2].real = tmp_a_r + tmp_b_r;
- buf[i+2].imag = tmp_a_i + tmp_b_i;
- buf[i+6].real = tmp_a_r - tmp_b_r;
- buf[i+6].imag = tmp_a_i - tmp_b_i;
- tmp_a_r = buf[i+3].real;
- tmp_a_i = buf[i+3].imag;
- tmp_b_r = (buf[i+7].real - buf[i+7].imag) * w[2][3].imag;
- tmp_b_i = (buf[i+7].imag + buf[i+7].real) * w[2][3].imag;
- buf[i+3].real = tmp_a_r + tmp_b_r;
- buf[i+3].imag = tmp_a_i + tmp_b_i;
- buf[i+7].real = tmp_a_r - tmp_b_r;
- buf[i+7].imag = tmp_a_i - tmp_b_i;
-#else
- vector float buf01, buf23, buf45, buf67;
-
- buf01 = vec_ld((i + 0) << 3, (float*)buf);
- buf23 = vec_ld((i + 2) << 3, (float*)buf);
-
- tmp_b_r = (buf[i+5].real + buf[i+5].imag) * w[2][1].real;
- tmp_b_i = (buf[i+5].imag - buf[i+5].real) * w[2][1].real;
- buf[i+5].real = tmp_b_r;
- buf[i+5].imag = tmp_b_i;
- tmp_b_r = (buf[i+7].real - buf[i+7].imag) * w[2][3].imag;
- tmp_b_i = (buf[i+7].imag + buf[i+7].real) * w[2][3].imag;
- buf[i+7].real = tmp_b_r;
- buf[i+7].imag = tmp_b_i;
-
- buf23 = vec_ld((i + 2) << 3, (float*)buf);
- buf45 = vec_ld((i + 4) << 3, (float*)buf);
- buf67 = vec_ld((i + 6) << 3, (float*)buf);
- buf67 = vec_perm(buf67, buf67, vcprm(1,0,2,3));
-
- vec_st(vec_add(buf01, buf45), (i + 0) << 3, (float*)buf);
- vec_st(vec_madd(buf67, vcii(p,n,p,p), buf23), (i + 2) << 3, (float*)buf);
- vec_st(vec_sub(buf01, buf45), (i + 4) << 3, (float*)buf);
- vec_st(vec_nmsub(buf67, vcii(p,n,p,p), buf23), (i + 6) << 3, (float*)buf);
-#endif
- }
-
- /* 4-7. iterations */
- for (m=3; m < 7; m++) {
- two_m = (1 << m);
-
- two_m_plus_one = two_m<<1;
-
- for(i = 0; i < 128; i += two_m_plus_one) {
- for(k = 0; k < two_m; k+=2) {
-#if 0
- int p = k + i;
- int q = p + two_m;
- tmp_a_r = buf[p].real;
- tmp_a_i = buf[p].imag;
- tmp_b_r =
- buf[q].real * w[m][k].real -
- buf[q].imag * w[m][k].imag;
- tmp_b_i =
- buf[q].imag * w[m][k].real +
- buf[q].real * w[m][k].imag;
- buf[p].real = tmp_a_r + tmp_b_r;
- buf[p].imag = tmp_a_i + tmp_b_i;
- buf[q].real = tmp_a_r - tmp_b_r;
- buf[q].imag = tmp_a_i - tmp_b_i;
-
- tmp_a_r = buf[(p + 1)].real;
- tmp_a_i = buf[(p + 1)].imag;
- tmp_b_r =
- buf[(q + 1)].real * w[m][(k + 1)].real -
- buf[(q + 1)].imag * w[m][(k + 1)].imag;
- tmp_b_i =
- buf[(q + 1)].imag * w[m][(k + 1)].real +
- buf[(q + 1)].real * w[m][(k + 1)].imag;
- buf[(p + 1)].real = tmp_a_r + tmp_b_r;
- buf[(p + 1)].imag = tmp_a_i + tmp_b_i;
- buf[(q + 1)].real = tmp_a_r - tmp_b_r;
- buf[(q + 1)].imag = tmp_a_i - tmp_b_i;
-#else
- int p = k + i;
- int q = p + two_m;
- vector float vecp, vecq, vecw, temp1, temp2, temp3, temp4;
- const vector float vczero = (const vector float)FOUROF(0.);
- // first compute buf[q] and buf[q+1]
- vecq = vec_ld(q << 3, (float*)buf);
- vecw = vec_ld(0, (float*)&(w[m][k]));
- temp1 = vec_madd(vecq, vecw, vczero);
- temp2 = vec_perm(vecq, vecq, vcprm(1,0,3,2));
- temp2 = vec_madd(temp2, vecw, vczero);
- temp3 = vec_perm(temp1, temp2, vcprm(0,s0,2,s2));
- temp4 = vec_perm(temp1, temp2, vcprm(1,s1,3,s3));
- vecq = vec_madd(temp4, vcii(n,p,n,p), temp3);
- // then butterfly with buf[p] and buf[p+1]
- vecp = vec_ld(p << 3, (float*)buf);
-
- temp1 = vec_add(vecp, vecq);
- temp2 = vec_sub(vecp, vecq);
-
- vec_st(temp1, p << 3, (float*)buf);
- vec_st(temp2, q << 3, (float*)buf);
-#endif
- }
- }
- }
-
- /* Post IFFT complex multiply plus IFFT complex conjugate*/
- for( i=0; i < 128; i+=4) {
- /* y[n] = z[n] * (xcos1[n] + j * xsin1[n]) ; */
-#if 0
- tmp_a_r = buf[(i + 0)].real;
- tmp_a_i = -1.0 * buf[(i + 0)].imag;
- buf[(i + 0)].real =
- (tmp_a_r * xcos1[(i + 0)]) - (tmp_a_i * xsin1[(i + 0)]);
- buf[(i + 0)].imag =
- (tmp_a_r * xsin1[(i + 0)]) + (tmp_a_i * xcos1[(i + 0)]);
-
- tmp_a_r = buf[(i + 1)].real;
- tmp_a_i = -1.0 * buf[(i + 1)].imag;
- buf[(i + 1)].real =
- (tmp_a_r * xcos1[(i + 1)]) - (tmp_a_i * xsin1[(i + 1)]);
- buf[(i + 1)].imag =
- (tmp_a_r * xsin1[(i + 1)]) + (tmp_a_i * xcos1[(i + 1)]);
-
- tmp_a_r = buf[(i + 2)].real;
- tmp_a_i = -1.0 * buf[(i + 2)].imag;
- buf[(i + 2)].real =
- (tmp_a_r * xcos1[(i + 2)]) - (tmp_a_i * xsin1[(i + 2)]);
- buf[(i + 2)].imag =
- (tmp_a_r * xsin1[(i + 2)]) + (tmp_a_i * xcos1[(i + 2)]);
-
- tmp_a_r = buf[(i + 3)].real;
- tmp_a_i = -1.0 * buf[(i + 3)].imag;
- buf[(i + 3)].real =
- (tmp_a_r * xcos1[(i + 3)]) - (tmp_a_i * xsin1[(i + 3)]);
- buf[(i + 3)].imag =
- (tmp_a_r * xsin1[(i + 3)]) + (tmp_a_i * xcos1[(i + 3)]);
-#else
- vector float bufv_0, bufv_2, cosv, sinv, temp1, temp2;
- vector float temp0022, temp1133, tempCS01;
- const vector float vczero = (const vector float)FOUROF(0.);
-
- bufv_0 = vec_ld((i + 0) << 3, (float*)buf);
- bufv_2 = vec_ld((i + 2) << 3, (float*)buf);
-
- cosv = vec_ld(i << 2, xcos1);
- sinv = vec_ld(i << 2, xsin1);
-
- temp0022 = vec_perm(bufv_0, bufv_0, vcprm(0,0,2,2));
- temp1133 = vec_perm(bufv_0, bufv_0, vcprm(1,1,3,3));
- tempCS01 = vec_perm(cosv, sinv, vcprm(0,s0,1,s1));
- temp1 = vec_madd(temp0022, tempCS01, vczero);
- tempCS01 = vec_perm(cosv, sinv, vcprm(s0,0,s1,1));
- temp2 = vec_madd(temp1133, tempCS01, vczero);
- bufv_0 = vec_madd(temp2, vcii(p,n,p,n), temp1);
-
- vec_st(bufv_0, (i + 0) << 3, (float*)buf);
-
- /* idem with bufv_2 and high-order cosv/sinv */
-
- temp0022 = vec_perm(bufv_2, bufv_2, vcprm(0,0,2,2));
- temp1133 = vec_perm(bufv_2, bufv_2, vcprm(1,1,3,3));
- tempCS01 = vec_perm(cosv, sinv, vcprm(2,s2,3,s3));
- temp1 = vec_madd(temp0022, tempCS01, vczero);
- tempCS01 = vec_perm(cosv, sinv, vcprm(s2,2,s3,3));
- temp2 = vec_madd(temp1133, tempCS01, vczero);
- bufv_2 = vec_madd(temp2, vcii(p,n,p,n), temp1);
-
- vec_st(bufv_2, (i + 2) << 3, (float*)buf);
-
-#endif
- }
-
- data_ptr = data;
- delay_ptr = delay;
- window_ptr = a52_imdct_window;
-
- /* Window and convert to real valued signal */
- for(i=0; i< 64; i++) {
- *data_ptr++ = -buf[64+i].imag * *window_ptr++ + *delay_ptr++ + bias;
- *data_ptr++ = buf[64-i-1].real * *window_ptr++ + *delay_ptr++ + bias;
- }
-
- for(i=0; i< 64; i++) {
- *data_ptr++ = -buf[i].real * *window_ptr++ + *delay_ptr++ + bias;
- *data_ptr++ = buf[128-i-1].imag * *window_ptr++ + *delay_ptr++ + bias;
- }
-
- /* The trailing edge of the window goes into the delay line */
- delay_ptr = delay;
-
- for(i=0; i< 64; i++) {
- *delay_ptr++ = -buf[64+i].real * *--window_ptr;
- *delay_ptr++ = buf[64-i-1].imag * *--window_ptr;
- }
-
- for(i=0; i<64; i++) {
- *delay_ptr++ = buf[i].imag * *--window_ptr;
- *delay_ptr++ = -buf[128-i-1].real * *--window_ptr;
- }
-}
-#endif
-
-
-// Stuff below this line is borrowed from libac3
-#include "srfftp.h"
-#if ARCH_X86 || ARCH_X86_64
-#undef HAVE_AMD3DNOW
-#define HAVE_AMD3DNOW 1
-#include "srfftp_3dnow.h"
-
-const i_cmplx_t x_plus_minus_3dnow __attribute__ ((aligned (8))) = {{ 0x00000000UL, 0x80000000UL }};
-const i_cmplx_t x_minus_plus_3dnow __attribute__ ((aligned (8))) = {{ 0x80000000UL, 0x00000000UL }};
-const complex_t HSQRT2_3DNOW __attribute__ ((aligned (8))) = { 0.707106781188, 0.707106781188 };
-
-#undef HAVE_AMD3DNOWEXT
-#define HAVE_AMD3DNOWEXT 0
-#include "imdct_3dnow.h"
-#undef HAVE_AMD3DNOWEXT
-#define HAVE_AMD3DNOWEXT 1
-#include "imdct_3dnow.h"
-
-#if !ARCH_X86_64 || !defined(PIC)
-void
-imdct_do_512_sse(sample_t data[],sample_t delay[], sample_t bias)
-{
-/* int i,k;
- int p,q;*/
- int m;
- long two_m;
- long two_m_plus_one;
- long two_m_plus_one_shl3;
- complex_t *buf_offset;
-
-/* sample_t tmp_a_i;
- sample_t tmp_a_r;
- sample_t tmp_b_i;
- sample_t tmp_b_r;*/
-
- sample_t *data_ptr;
- sample_t *delay_ptr;
- sample_t *window_ptr;
-
- /* 512 IMDCT with source and dest data in 'data' */
- /* see the c version (dct_do_512()), its allmost identical, just in C */
-
- /* Pre IFFT complex multiply plus IFFT cmplx conjugate */
- /* Bit reversed shuffling */
- __asm__ volatile(
- "xor %%"REG_S", %%"REG_S" \n\t"
- "lea "MANGLE(bit_reverse_512)", %%"REG_a"\n\t"
- "mov $1008, %%"REG_D" \n\t"
- "push %%"REG_BP" \n\t" //use ebp without telling gcc
- ASMALIGN(4)
- "1: \n\t"
- "movlps (%0, %%"REG_S"), %%xmm0 \n\t" // XXXI
- "movhps 8(%0, %%"REG_D"), %%xmm0 \n\t" // RXXI
- "movlps 8(%0, %%"REG_S"), %%xmm1 \n\t" // XXXi
- "movhps (%0, %%"REG_D"), %%xmm1 \n\t" // rXXi
- "shufps $0x33, %%xmm1, %%xmm0 \n\t" // irIR
- "movaps "MANGLE(sseSinCos1c)"(%%"REG_S"), %%xmm2\n\t"
- "mulps %%xmm0, %%xmm2 \n\t"
- "shufps $0xB1, %%xmm0, %%xmm0 \n\t" // riRI
- "mulps "MANGLE(sseSinCos1d)"(%%"REG_S"), %%xmm0\n\t"
- "subps %%xmm0, %%xmm2 \n\t"
- "movzb (%%"REG_a"), %%"REG_d" \n\t"
- "movzb 1(%%"REG_a"), %%"REG_BP" \n\t"
- "movlps %%xmm2, (%1, %%"REG_d", 8) \n\t"
- "movhps %%xmm2, (%1, %%"REG_BP", 8) \n\t"
- "add $16, %%"REG_S" \n\t"
- "add $2, %%"REG_a" \n\t" // avoid complex addressing for P4 crap
- "sub $16, %%"REG_D" \n\t"
- "jnc 1b \n\t"
- "pop %%"REG_BP" \n\t"//no we didnt touch ebp *g*
- :: "b" (data), "c" (buf)
- : "%"REG_S, "%"REG_D, "%"REG_a, "%"REG_d
- );
-
-
- /* FFT Merge */
-/* unoptimized variant
- for (m=1; m < 7; m++) {
- if(m)
- two_m = (1 << m);
- else
- two_m = 1;
-
- two_m_plus_one = (1 << (m+1));
-
- for(i = 0; i < 128; i += two_m_plus_one) {
- for(k = 0; k < two_m; k++) {
- p = k + i;
- q = p + two_m;
- tmp_a_r = buf[p].real;
- tmp_a_i = buf[p].imag;
- tmp_b_r = buf[q].real * w[m][k].real - buf[q].imag * w[m][k].imag;
- tmp_b_i = buf[q].imag * w[m][k].real + buf[q].real * w[m][k].imag;
- buf[p].real = tmp_a_r + tmp_b_r;
- buf[p].imag = tmp_a_i + tmp_b_i;
- buf[q].real = tmp_a_r - tmp_b_r;
- buf[q].imag = tmp_a_i - tmp_b_i;
- }
- }
- }
-*/
-
- /* 1. iteration */
- // Note w[0][0]={1,0}
- __asm__ volatile(
- "xorps %%xmm1, %%xmm1 \n\t"
- "xorps %%xmm2, %%xmm2 \n\t"
- "mov %0, %%"REG_S" \n\t"
- ASMALIGN(4)
- "1: \n\t"
- "movlps (%%"REG_S"), %%xmm0\n\t" //buf[p]
- "movlps 8(%%"REG_S"), %%xmm1\n\t" //buf[q]
- "movhps (%%"REG_S"), %%xmm0\n\t" //buf[p]
- "movhps 8(%%"REG_S"), %%xmm2\n\t" //buf[q]
- "addps %%xmm1, %%xmm0 \n\t"
- "subps %%xmm2, %%xmm0 \n\t"
- "movaps %%xmm0, (%%"REG_S")\n\t"
- "add $16, %%"REG_S" \n\t"
- "cmp %1, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "g" (buf), "r" (buf + 128)
- : "%"REG_S
- );
-
- /* 2. iteration */
- // Note w[1]={{1,0}, {0,-1}}
- __asm__ volatile(
- "movaps "MANGLE(ps111_1)", %%xmm7\n\t" // 1,1,1,-1
- "mov %0, %%"REG_S" \n\t"
- ASMALIGN(4)
- "1: \n\t"
- "movaps 16(%%"REG_S"), %%xmm2 \n\t" //r2,i2,r3,i3
- "shufps $0xB4, %%xmm2, %%xmm2 \n\t" //r2,i2,i3,r3
- "mulps %%xmm7, %%xmm2 \n\t" //r2,i2,i3,-r3
- "movaps (%%"REG_S"), %%xmm0 \n\t" //r0,i0,r1,i1
- "movaps (%%"REG_S"), %%xmm1 \n\t" //r0,i0,r1,i1
- "addps %%xmm2, %%xmm0 \n\t"
- "subps %%xmm2, %%xmm1 \n\t"
- "movaps %%xmm0, (%%"REG_S") \n\t"
- "movaps %%xmm1, 16(%%"REG_S") \n\t"
- "add $32, %%"REG_S" \n\t"
- "cmp %1, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "g" (buf), "r" (buf + 128)
- : "%"REG_S
- );
-
- /* 3. iteration */
-/*
- Note sseW2+0={1,1,sqrt(2),sqrt(2))
- Note sseW2+16={0,0,sqrt(2),-sqrt(2))
- Note sseW2+32={0,0,-sqrt(2),-sqrt(2))
- Note sseW2+48={1,-1,sqrt(2),-sqrt(2))
-*/
- __asm__ volatile(
- "movaps 48+"MANGLE(sseW2)", %%xmm6\n\t"
- "movaps 16+"MANGLE(sseW2)", %%xmm7\n\t"
- "xorps %%xmm5, %%xmm5 \n\t"
- "xorps %%xmm2, %%xmm2 \n\t"
- "mov %0, %%"REG_S" \n\t"
- ASMALIGN(4)
- "1: \n\t"
- "movaps 32(%%"REG_S"), %%xmm2 \n\t" //r4,i4,r5,i5
- "movaps 48(%%"REG_S"), %%xmm3 \n\t" //r6,i6,r7,i7
- "movaps "MANGLE(sseW2)", %%xmm4 \n\t" //r4,i4,r5,i5
- "movaps 32+"MANGLE(sseW2)", %%xmm5\n\t" //r6,i6,r7,i7
- "mulps %%xmm2, %%xmm4 \n\t"
- "mulps %%xmm3, %%xmm5 \n\t"
- "shufps $0xB1, %%xmm2, %%xmm2 \n\t" //i4,r4,i5,r5
- "shufps $0xB1, %%xmm3, %%xmm3 \n\t" //i6,r6,i7,r7
- "mulps %%xmm6, %%xmm3 \n\t"
- "mulps %%xmm7, %%xmm2 \n\t"
- "movaps (%%"REG_S"), %%xmm0 \n\t" //r0,i0,r1,i1
- "movaps 16(%%"REG_S"), %%xmm1 \n\t" //r2,i2,r3,i3
- "addps %%xmm4, %%xmm2 \n\t"
- "addps %%xmm5, %%xmm3 \n\t"
- "movaps %%xmm2, %%xmm4 \n\t"
- "movaps %%xmm3, %%xmm5 \n\t"
- "addps %%xmm0, %%xmm2 \n\t"
- "addps %%xmm1, %%xmm3 \n\t"
- "subps %%xmm4, %%xmm0 \n\t"
- "subps %%xmm5, %%xmm1 \n\t"
- "movaps %%xmm2, (%%"REG_S") \n\t"
- "movaps %%xmm3, 16(%%"REG_S") \n\t"
- "movaps %%xmm0, 32(%%"REG_S") \n\t"
- "movaps %%xmm1, 48(%%"REG_S") \n\t"
- "add $64, %%"REG_S" \n\t"
- "cmp %1, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "g" (buf), "r" (buf + 128)
- : "%"REG_S
- );
-
- /* 4-7. iterations */
- for (m=3; m < 7; m++) {
- two_m = (1 << m);
- two_m_plus_one = two_m<<1;
- two_m_plus_one_shl3 = (two_m_plus_one<<3);
- buf_offset = buf+128;
- __asm__ volatile(
- "mov %0, %%"REG_S" \n\t"
- ASMALIGN(4)
- "1: \n\t"
- "xor %%"REG_D", %%"REG_D" \n\t" // k
- "lea (%%"REG_S", %3), %%"REG_d" \n\t"
- "2: \n\t"
- "movaps (%%"REG_d", %%"REG_D"), %%xmm1 \n\t"
- "movaps (%4, %%"REG_D", 2), %%xmm2 \n\t"
- "mulps %%xmm1, %%xmm2 \n\t"
- "shufps $0xB1, %%xmm1, %%xmm1 \n\t"
- "mulps 16(%4, %%"REG_D", 2), %%xmm1 \n\t"
- "movaps (%%"REG_S", %%"REG_D"), %%xmm0 \n\t"
- "addps %%xmm2, %%xmm1 \n\t"
- "movaps %%xmm1, %%xmm2 \n\t"
- "addps %%xmm0, %%xmm1 \n\t"
- "subps %%xmm2, %%xmm0 \n\t"
- "movaps %%xmm1, (%%"REG_S", %%"REG_D") \n\t"
- "movaps %%xmm0, (%%"REG_d", %%"REG_D") \n\t"
- "add $16, %%"REG_D" \n\t"
- "cmp %3, %%"REG_D" \n\t" //FIXME (opt) count against 0
- "jb 2b \n\t"
- "add %2, %%"REG_S" \n\t"
- "cmp %1, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "g" (buf), "m" (buf_offset), "m" (two_m_plus_one_shl3), "r" (two_m<<3),
- "r" (sseW[m])
- : "%"REG_S, "%"REG_D, "%"REG_d
- );
- }
-
- /* Post IFFT complex multiply plus IFFT complex conjugate*/
- __asm__ volatile(
- "mov $-1024, %%"REG_S" \n\t"
- ASMALIGN(4)
- "1: \n\t"
- "movaps (%0, %%"REG_S"), %%xmm0 \n\t"
- "movaps (%0, %%"REG_S"), %%xmm1 \n\t"
- "shufps $0xB1, %%xmm0, %%xmm0 \n\t"
- "mulps 1024+"MANGLE(sseSinCos1c)"(%%"REG_S"), %%xmm1\n\t"
- "mulps 1024+"MANGLE(sseSinCos1d)"(%%"REG_S"), %%xmm0\n\t"
- "addps %%xmm1, %%xmm0 \n\t"
- "movaps %%xmm0, (%0, %%"REG_S") \n\t"
- "add $16, %%"REG_S" \n\t"
- " jnz 1b \n\t"
- :: "r" (buf+128)
- : "%"REG_S
- );
-
-
- data_ptr = data;
- delay_ptr = delay;
- window_ptr = a52_imdct_window;
-
- /* Window and convert to real valued signal */
- __asm__ volatile(
- "xor %%"REG_D", %%"REG_D" \n\t" // 0
- "xor %%"REG_S", %%"REG_S" \n\t" // 0
- "movss %3, %%xmm2 \n\t" // bias
- "shufps $0x00, %%xmm2, %%xmm2 \n\t" // bias, bias, ...
- ASMALIGN(4)
- "1: \n\t"
- "movlps (%0, %%"REG_S"), %%xmm0 \n\t" // ? ? A ?
- "movlps 8(%0, %%"REG_S"), %%xmm1 \n\t" // ? ? C ?
- "movhps -16(%0, %%"REG_D"), %%xmm1 \n\t" // ? D C ?
- "movhps -8(%0, %%"REG_D"), %%xmm0 \n\t" // ? B A ?
- "shufps $0x99, %%xmm1, %%xmm0 \n\t" // D C B A
- "mulps "MANGLE(sseWindow)"(%%"REG_S"), %%xmm0\n\t"
- "addps (%2, %%"REG_S"), %%xmm0 \n\t"
- "addps %%xmm2, %%xmm0 \n\t"
- "movaps %%xmm0, (%1, %%"REG_S") \n\t"
- "add $16, %%"REG_S" \n\t"
- "sub $16, %%"REG_D" \n\t"
- "cmp $512, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "r" (buf+64), "r" (data_ptr), "r" (delay_ptr), "m" (bias)
- : "%"REG_S, "%"REG_D
- );
- data_ptr+=128;
- delay_ptr+=128;
-// window_ptr+=128;
-
- __asm__ volatile(
- "mov $1024, %%"REG_D" \n\t" // 512
- "xor %%"REG_S", %%"REG_S" \n\t" // 0
- "movss %3, %%xmm2 \n\t" // bias
- "shufps $0x00, %%xmm2, %%xmm2 \n\t" // bias, bias, ...
- ASMALIGN(4)
- "1: \n\t"
- "movlps (%0, %%"REG_S"), %%xmm0 \n\t" // ? ? ? A
- "movlps 8(%0, %%"REG_S"), %%xmm1 \n\t" // ? ? ? C
- "movhps -16(%0, %%"REG_D"), %%xmm1 \n\t" // D ? ? C
- "movhps -8(%0, %%"REG_D"), %%xmm0 \n\t" // B ? ? A
- "shufps $0xCC, %%xmm1, %%xmm0 \n\t" // D C B A
- "mulps 512+"MANGLE(sseWindow)"(%%"REG_S"), %%xmm0\n\t"
- "addps (%2, %%"REG_S"), %%xmm0 \n\t"
- "addps %%xmm2, %%xmm0 \n\t"
- "movaps %%xmm0, (%1, %%"REG_S") \n\t"
- "add $16, %%"REG_S" \n\t"
- "sub $16, %%"REG_D" \n\t"
- "cmp $512, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "r" (buf), "r" (data_ptr), "r" (delay_ptr), "m" (bias)
- : "%"REG_S, "%"REG_D
- );
- data_ptr+=128;
-// window_ptr+=128;
-
- /* The trailing edge of the window goes into the delay line */
- delay_ptr = delay;
-
- __asm__ volatile(
- "xor %%"REG_D", %%"REG_D" \n\t" // 0
- "xor %%"REG_S", %%"REG_S" \n\t" // 0
- ASMALIGN(4)
- "1: \n\t"
- "movlps (%0, %%"REG_S"), %%xmm0 \n\t" // ? ? ? A
- "movlps 8(%0, %%"REG_S"), %%xmm1 \n\t" // ? ? ? C
- "movhps -16(%0, %%"REG_D"), %%xmm1 \n\t" // D ? ? C
- "movhps -8(%0, %%"REG_D"), %%xmm0 \n\t" // B ? ? A
- "shufps $0xCC, %%xmm1, %%xmm0 \n\t" // D C B A
- "mulps 1024+"MANGLE(sseWindow)"(%%"REG_S"), %%xmm0\n\t"
- "movaps %%xmm0, (%1, %%"REG_S") \n\t"
- "add $16, %%"REG_S" \n\t"
- "sub $16, %%"REG_D" \n\t"
- "cmp $512, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "r" (buf+64), "r" (delay_ptr)
- : "%"REG_S, "%"REG_D
- );
- delay_ptr+=128;
-// window_ptr-=128;
-
- __asm__ volatile(
- "mov $1024, %%"REG_D" \n\t" // 1024
- "xor %%"REG_S", %%"REG_S" \n\t" // 0
- ASMALIGN(4)
- "1: \n\t"
- "movlps (%0, %%"REG_S"), %%xmm0 \n\t" // ? ? A ?
- "movlps 8(%0, %%"REG_S"), %%xmm1 \n\t" // ? ? C ?
- "movhps -16(%0, %%"REG_D"), %%xmm1 \n\t" // ? D C ?
- "movhps -8(%0, %%"REG_D"), %%xmm0 \n\t" // ? B A ?
- "shufps $0x99, %%xmm1, %%xmm0 \n\t" // D C B A
- "mulps 1536+"MANGLE(sseWindow)"(%%"REG_S"), %%xmm0\n\t"
- "movaps %%xmm0, (%1, %%"REG_S") \n\t"
- "add $16, %%"REG_S" \n\t"
- "sub $16, %%"REG_D" \n\t"
- "cmp $512, %%"REG_S" \n\t"
- " jb 1b \n\t"
- :: "r" (buf), "r" (delay_ptr)
- : "%"REG_S, "%"REG_D
- );
-}
-#endif
-#endif // ARCH_X86 || ARCH_X86_64
-
-void a52_imdct_256(sample_t * data, sample_t * delay, sample_t bias)
-{
- int i, k;
- sample_t t_r, t_i, a_r, a_i, b_r, b_i, c_r, c_i, d_r, d_i, w_1, w_2;