1 /*****************************************************************************
2 * ac3_srfft_sse.c: ac3 fft functions
3 *****************************************************************************
4 * Copyright (C) 1999, 2000, 2001 VideoLAN
5 * $Id: ac3_srfft_sse.c,v 1.1 2001/05/14 15:58:04 reno Exp $
7 * Authors: Renaud Dartus <reno@videolan.org>
8 * Aaron Holtzman <aholtzma@engr.uvic.ca>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
37 #include "stream_control.h"
38 #include "input_ext-dec.h"
40 #include "ac3_decoder.h"
41 #include "ac3_srfft.h"
45 static void fft_4_sse (complex_t *x);
46 static void fft_8_sse (complex_t *x);
47 static void fft_asmb_sse (int k, complex_t *x, complex_t *wTB,
48 const complex_t *d, const complex_t *d_3);
50 void fft_64p_sse(complex_t *a)
52 fft_8_sse(&a[0]); fft_4_sse(&a[8]); fft_4_sse(&a[12]);
53 fft_asmb_sse(2, &a[0], &a[8], &delta16[0], &delta16_3[0]);
55 fft_8_sse(&a[16]), fft_8_sse(&a[24]);
56 fft_asmb_sse(4, &a[0], &a[16],&delta32[0], &delta32_3[0]);
58 fft_8_sse(&a[32]); fft_4_sse(&a[40]); fft_4_sse(&a[44]);
59 fft_asmb_sse(2, &a[32], &a[40], &delta16[0], &delta16_3[0]);
61 fft_8_sse(&a[48]); fft_4_sse(&a[56]); fft_4_sse(&a[60]);
62 fft_asmb_sse(2, &a[48], &a[56], &delta16[0], &delta16_3[0]);
64 fft_asmb_sse(8, &a[0], &a[32],&delta64[0], &delta64_3[0]);
68 void fft_128p_sse(complex_t *a)
70 fft_8_sse(&a[0]); fft_4_sse(&a[8]); fft_4_sse(&a[12]);
71 fft_asmb_sse(2, &a[0], &a[8], &delta16[0], &delta16_3[0]);
73 fft_8_sse(&a[16]), fft_8_sse(&a[24]);
74 fft_asmb_sse(4, &a[0], &a[16],&delta32[0], &delta32_3[0]);
76 fft_8_sse(&a[32]); fft_4_sse(&a[40]); fft_4_sse(&a[44]);
77 fft_asmb_sse(2, &a[32], &a[40], &delta16[0], &delta16_3[0]);
79 fft_8_sse(&a[48]); fft_4_sse(&a[56]); fft_4_sse(&a[60]);
80 fft_asmb_sse(2, &a[48], &a[56], &delta16[0], &delta16_3[0]);
82 fft_asmb_sse(8, &a[0], &a[32],&delta64[0], &delta64_3[0]);
84 fft_8_sse(&a[64]); fft_4_sse(&a[72]); fft_4_sse(&a[76]);
86 fft_asmb_sse(2, &a[64], &a[72], &delta16[0], &delta16_3[0]);
88 fft_8_sse(&a[80]); fft_8_sse(&a[88]);
91 fft_asmb_sse(4, &a[64], &a[80],&delta32[0], &delta32_3[0]);
93 fft_8_sse(&a[96]); fft_4_sse(&a[104]), fft_4_sse(&a[108]);
95 fft_asmb_sse(2, &a[96], &a[104], &delta16[0], &delta16_3[0]);
97 fft_8_sse(&a[112]), fft_8_sse(&a[120]);
99 fft_asmb_sse(4, &a[96], &a[112], &delta32[0], &delta32_3[0]);
101 /* fft_128(&a[0]); */
102 fft_asmb_sse(16, &a[0], &a[64], &delta128[0], &delta128_3[0]);
108 ".float 0f0.707106781188\n"
109 ".float 0f0.707106781188\n"
110 ".float 0f-0.707106781188\n"
111 ".float 0f-0.707106781188\n"
125 static void fft_4_sse (complex_t *x)
127 __asm__ __volatile__ (
128 "movups (%%eax), %%xmm0\n" /* x[1] | x[0] */
129 "movups 16(%%eax), %%xmm2\n" /* x[3] | x[2] */
130 "movups %%xmm0, %%xmm1\n" /* x[1] | x[0] */
131 "addps %%xmm2, %%xmm0\n" /* x[1] + x[3] | x[0] + x[2] */
132 "subps %%xmm2, %%xmm1\n" /* x[1] - x[3] | x[0] - x[2] */
133 "xorps %%xmm6, %%xmm6\n"
134 "movhlps %%xmm1, %%xmm4\n" /* ? | x[1] - x[3] */
135 "movhlps %%xmm0, %%xmm3\n" /* ? | x[1] + x[3] */
136 "subss %%xmm4, %%xmm6\n" /* 0 | -(x[1] - x[3]).re */
137 "movlhps %%xmm1, %%xmm0\n" /* x[0] - x[2] | x[0] + x[2] */
138 "movlhps %%xmm6, %%xmm4\n" /* 0 | -(x[1] - x[3]).re | (x[1] - x[3]).im | (x[3]-x[1]).re */
139 "movups %%xmm0, %%xmm2\n" /* x[0] - x[2] | x[0] + x[2] */
140 "shufps $0x94, %%xmm4, %%xmm3\n" /* i*(x[1] - x[3]) | x[1] + x[3] */
141 "addps %%xmm3, %%xmm0\n"
142 "subps %%xmm3, %%xmm2\n"
143 "movups %%xmm0, (%%eax)\n"
144 "movups %%xmm2, 16(%%eax)\n"
149 static void fft_8_sse (complex_t *x)
151 __asm__ __volatile__ (
154 "movlps (%%eax), %%xmm0\n" /* x[0] */
155 "movlps 32(%%eax), %%xmm1\n" /* x[4] */
156 "movhps 16(%%eax), %%xmm0\n" /* x[2] | x[0] */
157 "movhps 48(%%eax), %%xmm1\n" /* x[6] | x[4] */
158 "movups %%xmm0, %%xmm2\n" /* x[2] | x[0] */
159 "xorps %%xmm3, %%xmm3\n"
160 "addps %%xmm1, %%xmm0\n" /* x[2] + x[6] | x[0] + x[4] */
161 "subps %%xmm1, %%xmm2\n" /* x[2] - x[6] | x[0] - x[4] */
162 "movhlps %%xmm0, %%xmm5\n" /* x[2] + x[6] */
163 "movhlps %%xmm2, %%xmm4\n" /* x[2] - x[6] */
164 "movlhps %%xmm2, %%xmm0\n" /* x[0] - x[4] | x[0] + x[4] */
165 "subss %%xmm4, %%xmm3\n" /* (x[2]-x[6]).im | -(x[2]-x[6]).re */
166 "movups %%xmm0, %%xmm7\n" /* x[0] - x[4] | x[0] + x[4] */
167 "movups %%xmm3, %%xmm4\n" /* (x[2]-x[6]).im | -(x[2]-x[6]).re */
168 "movlps 8(%%eax), %%xmm1\n" /* x[1] */
169 "shufps $0x14, %%xmm4, %%xmm5\n" /* i*(x[2] - x[6]) | x[2] + x[6] */
171 "addps %%xmm5, %%xmm0\n" /* yt = i*(x2-x6)+x0-x4 | x2+x6+x0+x4 */
172 "subps %%xmm5, %%xmm7\n" /* yb = i*(x6-x2)+x0-x4 | -x6-x2+x0+x4 */
174 "movhps 24(%%eax), %%xmm1\n" /* x[3] | x[1] */
175 "movl $hsqrt2, %%ebx\n"
176 "movlps 40(%%eax), %%xmm2\n" /* x[5] */
177 "movhps 56(%%eax), %%xmm2\n" /* x[7] | x[5] */
178 "movups %%xmm1, %%xmm3\n" /* x[3] | x[1] */
179 "addps %%xmm2, %%xmm1\n" /* x[3] + x[7] | x[1] + x[5] */
180 "subps %%xmm2, %%xmm3\n" /* x[3] - x[7] | x[1] - x[5] */
181 "movups (%%ebx), %%xmm4\n" /* -1/sqrt2 | -1/sqrt2 | 1/sqrt2 | 1/sqrt2 */
182 "movups %%xmm3, %%xmm6\n" /* x[3] - x[7] | x[1] - x[5] */
183 "mulps %%xmm4, %%xmm3\n" /* -1/s2*(x[3] - x[7]) | 1/s2*(x[1] - x[5]) */
184 "shufps $0xc8, %%xmm4, %%xmm4\n" /* -1/sqrt2 | 1/sqrt2 | -1/sqrt2 | 1/sqrt2 */
185 "shufps $0xb1, %%xmm6, %%xmm6\n" /* (x3-x7).re|(x3-x7).im|(x1-x5).re|(x1-x5).im */
186 "mulps %%xmm4, %%xmm6\n" /* (x7-x3).re/s2|(x3-x7).im/s2|(x5-x1).re/s2|(x1-x5).im/s2 */
187 "addps %%xmm3, %%xmm6\n" /* (-1-i)/sqrt2 * (x[3]-x[7]) | (1-i)/sqrt2 * (x[1] - x[5]) */
188 "movhlps %%xmm1, %%xmm5\n" /* x[3] + x[7] */
189 "movlhps %%xmm6, %%xmm1\n" /* (1+i)/sqrt2 * (x[1]-x[5]) | x[1]+x[5] */
190 "shufps $0xe4, %%xmm6, %%xmm5\n" /* (-1-i)/sqrt2 * (x[3]-x[7]) | x[3]+x[7] */
191 "movups %%xmm1, %%xmm3\n" /* (1-i)/sqrt2 * (x[1]-x[5]) | x[1]+x[5] */
193 "addps %%xmm5, %%xmm1\n" /* u */
194 "subps %%xmm5, %%xmm3\n" /* v */
195 "movups %%xmm0, %%xmm2\n" /* yb */
196 "movups %%xmm7, %%xmm4\n" /* yt */
197 "movups (%%ebx), %%xmm5\n"
198 "mulps %%xmm5, %%xmm3\n"
199 "addps %%xmm1, %%xmm0\n" /* yt + u */
200 "subps %%xmm1, %%xmm2\n" /* yt - u */
201 "shufps $0xb1, %%xmm3, %%xmm3\n" /* -i * v */
202 "movups %%xmm0, (%%eax)\n"
203 "movups %%xmm2, 32(%%eax)\n"
204 "addps %%xmm3, %%xmm4\n" /* yb - i*v */
205 "subps %%xmm3, %%xmm7\n" /* yb + i*v */
206 "movups %%xmm4, 16(%%eax)\n"
207 "movups %%xmm7, 48(%%eax)\n"
215 static void fft_asmb_sse (int k, complex_t *x, complex_t *wTB,
216 const complex_t *d, const complex_t *d_3)
218 __asm__ __volatile__ (
220 "movl %%esp, %%ebp\n"
231 "movl 8(%%ebp), %%ecx\n" /* k */
232 "movl 12(%%ebp), %%eax\n" /* x */
233 "movl %%ecx, -4(%%ebp)\n" /* k */
234 "movl 16(%%ebp), %%ebx\n" /* wT */
235 "movl 20(%%ebp), %%edx\n" /* d */
236 "movl 24(%%ebp), %%esi\n" /* d3 */
237 "shll $4, %%ecx\n" /* 16k */
239 "leal (%%eax, %%ecx, 2), %%edi\n"
242 /* TRANSZERO and TRANS */
243 "movups (%%eax), %%xmm0\n" /* x[1] | x[0] */
244 "movups (%%ebx), %%xmm1\n" /* wT[1] | wT[0] */
245 "movups (%%ebx, %%ecx), %%xmm2\n" /* wB[1] | wB[0] */
246 "movlps (%%edx), %%xmm3\n" /* d */
247 "movlps (%%esi), %%xmm4\n" /* d3 */
248 "movhlps %%xmm1, %%xmm5\n" /* wT[1] */
249 "movhlps %%xmm2, %%xmm6\n" /* wB[1] */
250 "shufps $0x50, %%xmm3, %%xmm3\n" /* d[1].im | d[1].im | d[1].re | d[1].re */
251 "shufps $0x50, %%xmm4, %%xmm4\n" /* d3[1].im | d3[1].im | d3[i].re | d3[i].re */
252 "movlhps %%xmm5, %%xmm5\n" /* wT[1] | wT[1] */
253 "movlhps %%xmm6, %%xmm6\n" /* wB[1] | wB[1] */
254 "mulps %%xmm3, %%xmm5\n"
255 "mulps %%xmm4, %%xmm6\n"
256 "movhlps %%xmm5, %%xmm7\n" /* wT[1].im * d[1].im | wT[1].re * d[1].im */
257 "movlhps %%xmm6, %%xmm5\n" /* wB[1].im * d3[1].re | wB[1].re * d3[1].re | wT[1].im * d[1].re | wT[1].re * d[1].re */
258 "shufps $0xb1, %%xmm6, %%xmm7\n" /* wB[1].re * d3[1].im | wB[i].im * d3[1].im | wT[1].re * d[1].im | wT[1].im * d[1].im */
260 "movups (%%edi), %%xmm4\n"
261 "mulps %%xmm4, %%xmm7\n"
262 "addps %%xmm7, %%xmm5\n" /* wB[1] * d3[1] | wT[1] * d[1] */
263 "movlhps %%xmm5, %%xmm1\n" /* d[1] * wT[1] | wT[0] */
264 "shufps $0xe4, %%xmm5, %%xmm2\n" /* d3[1] * wB[1] | wB[0] */
265 "movups %%xmm1, %%xmm3\n" /* d[1] * wT[1] | wT[0] */
266 "leal (%%eax, %%ecx, 2), %%edi\n"
267 "addps %%xmm2, %%xmm1\n" /* u */
268 "subps %%xmm2, %%xmm3\n" /* v */
269 "mulps %%xmm4, %%xmm3\n"
270 "movups (%%eax, %%ecx), %%xmm5\n" /* xk[1] | xk[0] */
271 "shufps $0xb1, %%xmm3, %%xmm3\n" /* -i * v */
272 "movups %%xmm0, %%xmm2\n" /* x[1] | x[0] */
273 "movups %%xmm5, %%xmm6\n" /* xk[1] | xk[0] */
274 "addps %%xmm1, %%xmm0\n"
275 "subps %%xmm1, %%xmm2\n"
276 "addps %%xmm3, %%xmm5\n"
277 "subps %%xmm3, %%xmm6\n"
278 "movups %%xmm0, (%%eax)\n"
279 "movups %%xmm2, (%%edi)\n"
280 "movups %%xmm5, (%%eax, %%ecx)\n"
281 "movups %%xmm6, (%%edi, %%ecx)\n"
289 "movups (%%ebx), %%xmm0\n" /* wT[1] | wT[0] */
290 "movups (%%edx), %%xmm1\n" /* d[1] | d[0] */
292 "movups (%%ebx, %%ecx), %%xmm4\n" /* wB[1] | wB[0] */
293 "movups (%%esi), %%xmm5\n" /* d3[1] | d3[0] */
295 "movhlps %%xmm0, %%xmm2\n" /* wT[1] */
296 "movhlps %%xmm1, %%xmm3\n" /* d[1] */
298 "movhlps %%xmm4, %%xmm6\n" /* wB[1] */
299 "movhlps %%xmm5, %%xmm7\n" /* d3[1] */
301 "shufps $0x50, %%xmm1, %%xmm1\n" /* d[0].im | d[0].im | d[0].re | d[0].re */
302 "shufps $0x50, %%xmm3, %%xmm3\n" /* d[1].im | d[1].im | d[1].re | d[1].re */
304 "movlhps %%xmm0, %%xmm0\n" /* wT[0] | wT[0] */
305 "shufps $0x50, %%xmm5, %%xmm5\n" /* d3[0].im | d3[0].im | d3[0].re | d3[0].re */
306 "movlhps %%xmm2, %%xmm2\n" /* wT[1] | wT[1] */
307 "shufps $0x50, %%xmm7, %%xmm7\n" /* d3[1].im | d3[1].im | d3[1].re | d3[1].re */
309 "mulps %%xmm1, %%xmm0\n" /* d[0].im * wT[0].im | d[0].im * wT[0].re | d[0].re * wT[0].im | d[0].re * wT[0].re */
310 "mulps %%xmm3, %%xmm2\n" /* d[1].im * wT[1].im | d[1].im * wT[1].re | d[1].re * wT[1].im | d[1].re * wT[1].re */
311 "movlhps %%xmm4, %%xmm4\n" /* wB[0] | wB[0] */
312 "movlhps %%xmm6, %%xmm6\n" /* wB[1] | wB[1] */
314 "movhlps %%xmm0, %%xmm1\n" /* d[0].im * wT[0].im | d[0].im * wT[0].re */
315 "movlhps %%xmm2, %%xmm0\n" /* d[1].re * wT[1].im | d[1].re * wT[1].re | d[0].re * wT[0].im | d[0].re * wT[0].re */
316 "mulps %%xmm5, %%xmm4\n" /* wB[0].im * d3[0].im | wB[0].re * d3[0].im | wB[0].im * d3[0].re | wB[0].re * d3[0].re */
317 "mulps %%xmm7, %%xmm6\n" /* wB[1].im * d3[1].im | wB[1].re * d3[1].im | wB[1].im * d3[1].re | wB[1].re * d3[1].re */
318 "shufps $0xb1, %%xmm2, %%xmm1\n" /* d[1].im * wT[1].re | d[1].im * wT[1].im | d[0].im * wT[0].re | d[0].im * wT[0].im */
320 "movups (%%edi), %%xmm3\n" /* 1.0 | -1.0 | 1.0 | -1.0 */
322 "movhlps %%xmm4, %%xmm5\n" /* wB[0].im * d3[0].im | wB[0].re * d3[0].im */
323 "mulps %%xmm3, %%xmm1\n" /* d[1].im * wT[1].re | -d[1].im * wT[1].im | d[0].im * wT[0].re | -d[0].im * wT[0].im */
324 "movlhps %%xmm6, %%xmm4\n" /* wB[1].im * d3[1].re | wB[1].re * d3[1].re | wB[0].im * d3[0].re | wB[0].im * d3[0].re */
325 "addps %%xmm1, %%xmm0\n" /* wT[1] * d[1] | wT[0] * d[0] */
327 "shufps $0xb1, %%xmm6, %%xmm5\n" /* wB[1].re * d3[1].im | wB[1].im * d3[1].im | wB[0].re * d3[0].im | wB[0].im * d3[0].im */
328 "mulps %%xmm3, %%xmm5\n" /* wB[1].re * d3[1].im | -wB[1].im * d3[1].im | wB[0].re * d3[0].im | -wB[0].im * d3[0].im */
329 "addps %%xmm5, %%xmm4\n" /* wB[1] * d3[1] | wB[0] * d3[0] */
331 "movups %%xmm0, %%xmm1\n" /* wT[1] * d[1] | wT[0] * d[0] */
332 "addps %%xmm4, %%xmm0\n" /* u */
333 "subps %%xmm4, %%xmm1\n" /* v */
334 "movups (%%eax), %%xmm6\n" /* x[1] | x[0] */
335 "leal (%%eax, %%ecx, 2), %%edi\n"
336 "mulps %%xmm3, %%xmm1\n"
339 "shufps $0xb1, %%xmm1, %%xmm1\n" /* -i * v */
340 "movups (%%eax, %%ecx), %%xmm7\n" /* xk[1] | xk[0] */
341 "movups %%xmm6, %%xmm2\n"
342 "movups %%xmm7, %%xmm4\n"
343 "addps %%xmm0, %%xmm6\n"
344 "subps %%xmm0, %%xmm2\n"
345 "movups %%xmm6, (%%eax)\n"
346 "movups %%xmm2, (%%edi)\n"
347 "addps %%xmm1, %%xmm7\n"
348 "subps %%xmm1, %%xmm4\n"
350 "movups %%xmm7, (%%eax, %%ecx)\n"
351 "movups %%xmm4, (%%edi, %%ecx)\n"