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[ffmpeg] / libavcodec / mips / aacsbr_mips.c
1 /*
2  * Copyright (c) 2012
3  *      MIPS Technologies, Inc., California.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
14  *    contributors may be used to endorse or promote products derived from
15  *    this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * Authors:  Djordje Pesut   (djordje@mips.com)
30  *           Mirjana Vulin   (mvulin@mips.com)
31  *
32  * This file is part of FFmpeg.
33  *
34  * FFmpeg is free software; you can redistribute it and/or
35  * modify it under the terms of the GNU Lesser General Public
36  * License as published by the Free Software Foundation; either
37  * version 2.1 of the License, or (at your option) any later version.
38  *
39  * FFmpeg is distributed in the hope that it will be useful,
40  * but WITHOUT ANY WARRANTY; without even the implied warranty of
41  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
42  * Lesser General Public License for more details.
43  *
44  * You should have received a copy of the GNU Lesser General Public
45  * License along with FFmpeg; if not, write to the Free Software
46  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
47  */
48
49 /**
50  * @file
51  * Reference: libavcodec/aacsbr.c
52  */
53
54 #include "libavcodec/aac.h"
55 #include "libavcodec/aacsbr.h"
56 #include "libavutil/mem_internal.h"
57 #include "libavutil/mips/asmdefs.h"
58
59 #define ENVELOPE_ADJUSTMENT_OFFSET 2
60
61 #if HAVE_INLINE_ASM
62 #if HAVE_MIPSFPU
63 static int sbr_lf_gen_mips(AACContext *ac, SpectralBandReplication *sbr,
64                       float X_low[32][40][2], const float W[2][32][32][2],
65                       int buf_idx)
66 {
67     int i, k;
68     int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
69     float *p_x_low = &X_low[0][8][0];
70     float *p_w = (float*)&W[buf_idx][0][0][0];
71     float *p_x1_low = &X_low[0][0][0];
72     float *p_w1 = (float*)&W[1-buf_idx][24][0][0];
73
74     float *loop_end=p_x1_low + 2560;
75
76     /* loop unrolled 8 times */
77     __asm__ volatile (
78     "1:                                                 \n\t"
79         "sw     $0,            0(%[p_x1_low])           \n\t"
80         "sw     $0,            4(%[p_x1_low])           \n\t"
81         "sw     $0,            8(%[p_x1_low])           \n\t"
82         "sw     $0,            12(%[p_x1_low])          \n\t"
83         "sw     $0,            16(%[p_x1_low])          \n\t"
84         "sw     $0,            20(%[p_x1_low])          \n\t"
85         "sw     $0,            24(%[p_x1_low])          \n\t"
86         "sw     $0,            28(%[p_x1_low])          \n\t"
87         PTR_ADDIU "%[p_x1_low],%[p_x1_low],      32     \n\t"
88         "bne    %[p_x1_low],   %[loop_end],      1b     \n\t"
89         PTR_ADDIU "%[p_x1_low],%[p_x1_low],      -10240 \n\t"
90
91         : [p_x1_low]"+r"(p_x1_low)
92         : [loop_end]"r"(loop_end)
93         : "memory"
94     );
95
96     for (k = 0; k < sbr->kx[1]; k++) {
97         for (i = 0; i < 32; i+=4) {
98             /* loop unrolled 4 times */
99             __asm__ volatile (
100                 "lw     %[temp0],   0(%[p_w])               \n\t"
101                 "lw     %[temp1],   4(%[p_w])               \n\t"
102                 "lw     %[temp2],   256(%[p_w])             \n\t"
103                 "lw     %[temp3],   260(%[p_w])             \n\t"
104                 "lw     %[temp4],   512(%[p_w])             \n\t"
105                 "lw     %[temp5],   516(%[p_w])             \n\t"
106                 "lw     %[temp6],   768(%[p_w])             \n\t"
107                 "lw     %[temp7],   772(%[p_w])             \n\t"
108                 "sw     %[temp0],   0(%[p_x_low])           \n\t"
109                 "sw     %[temp1],   4(%[p_x_low])           \n\t"
110                 "sw     %[temp2],   8(%[p_x_low])           \n\t"
111                 "sw     %[temp3],   12(%[p_x_low])          \n\t"
112                 "sw     %[temp4],   16(%[p_x_low])          \n\t"
113                 "sw     %[temp5],   20(%[p_x_low])          \n\t"
114                 "sw     %[temp6],   24(%[p_x_low])          \n\t"
115                 "sw     %[temp7],   28(%[p_x_low])          \n\t"
116                 PTR_ADDIU "%[p_x_low], %[p_x_low],  32      \n\t"
117                 PTR_ADDIU "%[p_w],     %[p_w],      1024    \n\t"
118
119                 : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
120                   [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
121                   [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
122                   [temp6]"=&r"(temp6), [temp7]"=&r"(temp7),
123                   [p_w]"+r"(p_w), [p_x_low]"+r"(p_x_low)
124                 :
125                 : "memory"
126             );
127         }
128         p_x_low += 16;
129         p_w -= 2046;
130     }
131
132     for (k = 0; k < sbr->kx[0]; k++) {
133         for (i = 0; i < 2; i++) {
134
135             /* loop unrolled 4 times */
136             __asm__ volatile (
137                 "lw     %[temp0],    0(%[p_w1])             \n\t"
138                 "lw     %[temp1],    4(%[p_w1])             \n\t"
139                 "lw     %[temp2],    256(%[p_w1])           \n\t"
140                 "lw     %[temp3],    260(%[p_w1])           \n\t"
141                 "lw     %[temp4],    512(%[p_w1])           \n\t"
142                 "lw     %[temp5],    516(%[p_w1])           \n\t"
143                 "lw     %[temp6],    768(%[p_w1])           \n\t"
144                 "lw     %[temp7],    772(%[p_w1])           \n\t"
145                 "sw     %[temp0],    0(%[p_x1_low])         \n\t"
146                 "sw     %[temp1],    4(%[p_x1_low])         \n\t"
147                 "sw     %[temp2],    8(%[p_x1_low])         \n\t"
148                 "sw     %[temp3],    12(%[p_x1_low])        \n\t"
149                 "sw     %[temp4],    16(%[p_x1_low])        \n\t"
150                 "sw     %[temp5],    20(%[p_x1_low])        \n\t"
151                 "sw     %[temp6],    24(%[p_x1_low])        \n\t"
152                 "sw     %[temp7],    28(%[p_x1_low])        \n\t"
153                 PTR_ADDIU "%[p_x1_low], %[p_x1_low], 32     \n\t"
154                 PTR_ADDIU "%[p_w1],     %[p_w1],     1024   \n\t"
155
156                 : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
157                   [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
158                   [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
159                   [temp6]"=&r"(temp6), [temp7]"=&r"(temp7),
160                   [p_w1]"+r"(p_w1), [p_x1_low]"+r"(p_x1_low)
161                 :
162                 : "memory"
163             );
164         }
165         p_x1_low += 64;
166         p_w1 -= 510;
167     }
168     return 0;
169 }
170
171 static int sbr_x_gen_mips(SpectralBandReplication *sbr, float X[2][38][64],
172                      const float Y0[38][64][2], const float Y1[38][64][2],
173                      const float X_low[32][40][2], int ch)
174 {
175     int k, i;
176     const int i_f = 32;
177     int temp0, temp1, temp2, temp3;
178     const float *X_low1, *Y01, *Y11;
179     float *x1=&X[0][0][0];
180     float *j=x1+4864;
181     const int i_Temp = FFMAX(2*sbr->data[ch].t_env_num_env_old - i_f, 0);
182
183     /* loop unrolled 8 times */
184     __asm__ volatile (
185     "1:                                       \n\t"
186         "sw     $0,      0(%[x1])             \n\t"
187         "sw     $0,      4(%[x1])             \n\t"
188         "sw     $0,      8(%[x1])             \n\t"
189         "sw     $0,      12(%[x1])            \n\t"
190         "sw     $0,      16(%[x1])            \n\t"
191         "sw     $0,      20(%[x1])            \n\t"
192         "sw     $0,      24(%[x1])            \n\t"
193         "sw     $0,      28(%[x1])            \n\t"
194         PTR_ADDIU "%[x1],%[x1],      32       \n\t"
195         "bne    %[x1],   %[j],       1b       \n\t"
196         PTR_ADDIU "%[x1],%[x1],      -19456   \n\t"
197
198         : [x1]"+r"(x1)
199         : [j]"r"(j)
200         : "memory"
201     );
202
203     if (i_Temp != 0) {
204
205         X_low1=&X_low[0][2][0];
206
207         for (k = 0; k < sbr->kx[0]; k++) {
208
209             __asm__ volatile (
210                 "move    %[i],        $zero                  \n\t"
211             "2:                                              \n\t"
212                 "lw      %[temp0],    0(%[X_low1])           \n\t"
213                 "lw      %[temp1],    4(%[X_low1])           \n\t"
214                 "sw      %[temp0],    0(%[x1])               \n\t"
215                 "sw      %[temp1],    9728(%[x1])            \n\t"
216                 PTR_ADDIU "%[x1],     %[x1],         256     \n\t"
217                 PTR_ADDIU "%[X_low1], %[X_low1],     8       \n\t"
218                 "addiu   %[i],        %[i],          1       \n\t"
219                 "bne     %[i],        %[i_Temp],     2b      \n\t"
220
221                 : [x1]"+r"(x1), [X_low1]"+r"(X_low1), [i]"=&r"(i),
222                   [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
223                 : [i_Temp]"r"(i_Temp)
224                 : "memory"
225             );
226             x1-=(i_Temp<<6)-1;
227             X_low1-=(i_Temp<<1)-80;
228         }
229
230         x1=&X[0][0][k];
231         Y01=(float*)&Y0[32][k][0];
232
233         for (; k < sbr->kx[0] + sbr->m[0]; k++) {
234             __asm__ volatile (
235                 "move    %[i],       $zero               \n\t"
236             "3:                                          \n\t"
237                 "lw      %[temp0],   0(%[Y01])           \n\t"
238                 "lw      %[temp1],   4(%[Y01])           \n\t"
239                 "sw      %[temp0],   0(%[x1])            \n\t"
240                 "sw      %[temp1],   9728(%[x1])         \n\t"
241                 PTR_ADDIU "%[x1],    %[x1],      256     \n\t"
242                 PTR_ADDIU "%[Y01],   %[Y01],     512     \n\t"
243                 "addiu   %[i],       %[i],       1       \n\t"
244                 "bne     %[i],       %[i_Temp],  3b      \n\t"
245
246                 : [x1]"+r"(x1), [Y01]"+r"(Y01), [i]"=&r"(i),
247                   [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
248                 : [i_Temp]"r"(i_Temp)
249                 : "memory"
250             );
251             x1 -=(i_Temp<<6)-1;
252             Y01 -=(i_Temp<<7)-2;
253         }
254     }
255
256     x1=&X[0][i_Temp][0];
257     X_low1=&X_low[0][i_Temp+2][0];
258     temp3=38;
259
260     for (k = 0; k < sbr->kx[1]; k++) {
261
262         __asm__ volatile (
263             "move    %[i],       %[i_Temp]              \n\t"
264         "4:                                             \n\t"
265             "lw      %[temp0],   0(%[X_low1])           \n\t"
266             "lw      %[temp1],   4(%[X_low1])           \n\t"
267             "sw      %[temp0],   0(%[x1])               \n\t"
268             "sw      %[temp1],   9728(%[x1])            \n\t"
269             PTR_ADDIU "%[x1],    %[x1],         256     \n\t"
270             PTR_ADDIU "%[X_low1],%[X_low1],     8       \n\t"
271             "addiu   %[i],       %[i],          1       \n\t"
272             "bne     %[i],       %[temp3],      4b      \n\t"
273
274             : [x1]"+r"(x1), [X_low1]"+r"(X_low1), [i]"=&r"(i),
275               [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
276               [temp2]"=&r"(temp2)
277             : [i_Temp]"r"(i_Temp), [temp3]"r"(temp3)
278             : "memory"
279         );
280         x1 -= ((38-i_Temp)<<6)-1;
281         X_low1 -= ((38-i_Temp)<<1)- 80;
282     }
283
284     x1=&X[0][i_Temp][k];
285     Y11=&Y1[i_Temp][k][0];
286     temp2=32;
287
288     for (; k < sbr->kx[1] + sbr->m[1]; k++) {
289
290         __asm__ volatile (
291            "move    %[i],       %[i_Temp]               \n\t"
292         "5:                                             \n\t"
293            "lw      %[temp0],   0(%[Y11])               \n\t"
294            "lw      %[temp1],   4(%[Y11])               \n\t"
295            "sw      %[temp0],   0(%[x1])                \n\t"
296            "sw      %[temp1],   9728(%[x1])             \n\t"
297            PTR_ADDIU "%[x1],    %[x1],          256     \n\t"
298            PTR_ADDIU "%[Y11],   %[Y11],         512     \n\t"
299            "addiu   %[i],       %[i],           1       \n\t"
300            "bne     %[i],       %[temp2],       5b      \n\t"
301
302            : [x1]"+r"(x1), [Y11]"+r"(Y11), [i]"=&r"(i),
303              [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
304            : [i_Temp]"r"(i_Temp), [temp3]"r"(temp3),
305              [temp2]"r"(temp2)
306            : "memory"
307         );
308
309         x1 -= ((32-i_Temp)<<6)-1;
310         Y11 -= ((32-i_Temp)<<7)-2;
311    }
312       return 0;
313 }
314
315 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
316 static void sbr_hf_assemble_mips(float Y1[38][64][2],
317                             const float X_high[64][40][2],
318                             SpectralBandReplication *sbr, SBRData *ch_data,
319                             const int e_a[2])
320 {
321     int e, i, j, m;
322     const int h_SL = 4 * !sbr->bs_smoothing_mode;
323     const int kx = sbr->kx[1];
324     const int m_max = sbr->m[1];
325     static const float h_smooth[5] = {
326         0.33333333333333,
327         0.30150283239582,
328         0.21816949906249,
329         0.11516383427084,
330         0.03183050093751,
331     };
332
333     float (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
334     int indexnoise = ch_data->f_indexnoise;
335     int indexsine  = ch_data->f_indexsine;
336     float *g_temp1, *q_temp1, *pok, *pok1;
337     uint32_t temp1, temp2, temp3, temp4;
338     int size = m_max;
339
340     if (sbr->reset) {
341         for (i = 0; i < h_SL; i++) {
342             memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
343             memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0],  m_max * sizeof(sbr->q_m[0][0]));
344         }
345     } else if (h_SL) {
346         memcpy(g_temp[2*ch_data->t_env[0]], g_temp[2*ch_data->t_env_num_env_old], 4*sizeof(g_temp[0]));
347         memcpy(q_temp[2*ch_data->t_env[0]], q_temp[2*ch_data->t_env_num_env_old], 4*sizeof(q_temp[0]));
348     }
349
350     for (e = 0; e < ch_data->bs_num_env; e++) {
351         for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
352             g_temp1 = g_temp[h_SL + i];
353             pok = sbr->gain[e];
354             q_temp1 = q_temp[h_SL + i];
355             pok1 = sbr->q_m[e];
356
357             /* loop unrolled 4 times */
358             for (j=0; j<(size>>2); j++) {
359                 __asm__ volatile (
360                     "lw      %[temp1],   0(%[pok])               \n\t"
361                     "lw      %[temp2],   4(%[pok])               \n\t"
362                     "lw      %[temp3],   8(%[pok])               \n\t"
363                     "lw      %[temp4],   12(%[pok])              \n\t"
364                     "sw      %[temp1],   0(%[g_temp1])           \n\t"
365                     "sw      %[temp2],   4(%[g_temp1])           \n\t"
366                     "sw      %[temp3],   8(%[g_temp1])           \n\t"
367                     "sw      %[temp4],   12(%[g_temp1])          \n\t"
368                     "lw      %[temp1],   0(%[pok1])              \n\t"
369                     "lw      %[temp2],   4(%[pok1])              \n\t"
370                     "lw      %[temp3],   8(%[pok1])              \n\t"
371                     "lw      %[temp4],   12(%[pok1])             \n\t"
372                     "sw      %[temp1],   0(%[q_temp1])           \n\t"
373                     "sw      %[temp2],   4(%[q_temp1])           \n\t"
374                     "sw      %[temp3],   8(%[q_temp1])           \n\t"
375                     "sw      %[temp4],   12(%[q_temp1])          \n\t"
376                     PTR_ADDIU "%[pok],     %[pok],         16    \n\t"
377                     PTR_ADDIU "%[g_temp1], %[g_temp1],     16    \n\t"
378                     PTR_ADDIU "%[pok1],    %[pok1],        16    \n\t"
379                     PTR_ADDIU "%[q_temp1], %[q_temp1],     16    \n\t"
380
381                     : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
382                       [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
383                       [pok]"+r"(pok), [g_temp1]"+r"(g_temp1),
384                       [pok1]"+r"(pok1), [q_temp1]"+r"(q_temp1)
385                     :
386                     : "memory"
387                 );
388             }
389
390             for (j=0; j<(size&3); j++) {
391                 __asm__ volatile (
392                     "lw      %[temp1],   0(%[pok])              \n\t"
393                     "lw      %[temp2],   0(%[pok1])             \n\t"
394                     "sw      %[temp1],   0(%[g_temp1])          \n\t"
395                     "sw      %[temp2],   0(%[q_temp1])          \n\t"
396                     PTR_ADDIU "%[pok],     %[pok],        4     \n\t"
397                     PTR_ADDIU "%[g_temp1], %[g_temp1],    4     \n\t"
398                     PTR_ADDIU "%[pok1],    %[pok1],       4     \n\t"
399                     PTR_ADDIU "%[q_temp1], %[q_temp1],    4     \n\t"
400
401                     : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
402                       [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
403                       [pok]"+r"(pok), [g_temp1]"+r"(g_temp1),
404                       [pok1]"+r"(pok1), [q_temp1]"+r"(q_temp1)
405                     :
406                     : "memory"
407                 );
408             }
409         }
410     }
411
412     for (e = 0; e < ch_data->bs_num_env; e++) {
413         for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
414             LOCAL_ALIGNED_16(float, g_filt_tab, [48]);
415             LOCAL_ALIGNED_16(float, q_filt_tab, [48]);
416             float *g_filt, *q_filt;
417
418             if (h_SL && e != e_a[0] && e != e_a[1]) {
419                 g_filt = g_filt_tab;
420                 q_filt = q_filt_tab;
421
422                 for (m = 0; m < m_max; m++) {
423                     const int idx1 = i + h_SL;
424                     g_filt[m] = 0.0f;
425                     q_filt[m] = 0.0f;
426
427                     for (j = 0; j <= h_SL; j++) {
428                         g_filt[m] += g_temp[idx1 - j][m] * h_smooth[j];
429                         q_filt[m] += q_temp[idx1 - j][m] * h_smooth[j];
430                     }
431                 }
432             } else {
433                 g_filt = g_temp[i + h_SL];
434                 q_filt = q_temp[i];
435             }
436
437             sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
438                                i + ENVELOPE_ADJUSTMENT_OFFSET);
439
440             if (e != e_a[0] && e != e_a[1]) {
441                 sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
442                                                    q_filt, indexnoise,
443                                                    kx, m_max);
444             } else {
445                 int idx = indexsine&1;
446                 int A = (1-((indexsine+(kx & 1))&2));
447                 int B = (A^(-idx)) + idx;
448                 float *out = &Y1[i][kx][idx];
449                 float *in  = sbr->s_m[e];
450                 float temp0, temp1, temp2, temp3, temp4, temp5;
451                 float A_f = (float)A;
452                 float B_f = (float)B;
453
454                 for (m = 0; m+1 < m_max; m+=2) {
455
456                     temp2 = out[0];
457                     temp3 = out[2];
458
459                     __asm__ volatile(
460                         "lwc1    %[temp0],  0(%[in])                     \n\t"
461                         "lwc1    %[temp1],  4(%[in])                     \n\t"
462                         "madd.s  %[temp4],  %[temp2],  %[temp0], %[A_f]  \n\t"
463                         "madd.s  %[temp5],  %[temp3],  %[temp1], %[B_f]  \n\t"
464                         "swc1    %[temp4],  0(%[out])                    \n\t"
465                         "swc1    %[temp5],  8(%[out])                    \n\t"
466                         PTR_ADDIU "%[in],   %[in],     8                 \n\t"
467                         PTR_ADDIU "%[out],  %[out],    16                \n\t"
468
469                         : [temp0]"=&f" (temp0), [temp1]"=&f"(temp1),
470                           [temp4]"=&f" (temp4), [temp5]"=&f"(temp5),
471                           [in]"+r"(in), [out]"+r"(out)
472                         : [A_f]"f"(A_f), [B_f]"f"(B_f), [temp2]"f"(temp2),
473                           [temp3]"f"(temp3)
474                         : "memory"
475                     );
476                 }
477                 if(m_max&1)
478                     out[2*m  ] += in[m  ] * A;
479             }
480             indexnoise = (indexnoise + m_max) & 0x1ff;
481             indexsine = (indexsine + 1) & 3;
482         }
483     }
484     ch_data->f_indexnoise = indexnoise;
485     ch_data->f_indexsine  = indexsine;
486 }
487
488 static void sbr_hf_inverse_filter_mips(SBRDSPContext *dsp,
489                                   float (*alpha0)[2], float (*alpha1)[2],
490                                   const float X_low[32][40][2], int k0)
491 {
492     int k;
493     float temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, c;
494     float *phi1, *alpha_1, *alpha_0, res1, res2, temp_real, temp_im;
495
496     c = 1.000001f;
497
498     for (k = 0; k < k0; k++) {
499         LOCAL_ALIGNED_16(float, phi, [3], [2][2]);
500         float dk;
501         phi1 = &phi[0][0][0];
502         alpha_1 = &alpha1[k][0];
503         alpha_0 = &alpha0[k][0];
504         dsp->autocorrelate(X_low[k], phi);
505
506         __asm__ volatile (
507             "lwc1    %[temp0],  40(%[phi1])                       \n\t"
508             "lwc1    %[temp1],  16(%[phi1])                       \n\t"
509             "lwc1    %[temp2],  24(%[phi1])                       \n\t"
510             "lwc1    %[temp3],  28(%[phi1])                       \n\t"
511             "mul.s   %[dk],     %[temp0],    %[temp1]             \n\t"
512             "lwc1    %[temp4],  0(%[phi1])                        \n\t"
513             "mul.s   %[res2],   %[temp2],    %[temp2]             \n\t"
514             "lwc1    %[temp5],  4(%[phi1])                        \n\t"
515             "madd.s  %[res2],   %[res2],     %[temp3],  %[temp3]  \n\t"
516             "lwc1    %[temp6],  8(%[phi1])                        \n\t"
517             "div.s   %[res2],   %[res2],     %[c]                 \n\t"
518             "lwc1    %[temp0],  12(%[phi1])                       \n\t"
519             "sub.s   %[dk],     %[dk],       %[res2]              \n\t"
520
521             : [temp0]"=&f"(temp0), [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
522               [temp3]"=&f"(temp3), [temp4]"=&f"(temp4), [temp5]"=&f"(temp5),
523               [temp6]"=&f"(temp6), [res2]"=&f"(res2), [dk]"=&f"(dk)
524             : [phi1]"r"(phi1), [c]"f"(c)
525             : "memory"
526         );
527
528         if (!dk) {
529             alpha_1[0] = 0;
530             alpha_1[1] = 0;
531         } else {
532             __asm__ volatile (
533                 "mul.s   %[temp_real], %[temp4],     %[temp2]            \n\t"
534                 "nmsub.s %[temp_real], %[temp_real], %[temp5], %[temp3]  \n\t"
535                 "nmsub.s %[temp_real], %[temp_real], %[temp6], %[temp1]  \n\t"
536                 "mul.s   %[temp_im],   %[temp4],     %[temp3]            \n\t"
537                 "madd.s  %[temp_im],   %[temp_im],   %[temp5], %[temp2]  \n\t"
538                 "nmsub.s %[temp_im],   %[temp_im],   %[temp0], %[temp1]  \n\t"
539                 "div.s   %[temp_real], %[temp_real], %[dk]               \n\t"
540                 "div.s   %[temp_im],   %[temp_im],   %[dk]               \n\t"
541                 "swc1    %[temp_real], 0(%[alpha_1])                     \n\t"
542                 "swc1    %[temp_im],   4(%[alpha_1])                     \n\t"
543
544                 : [temp_real]"=&f" (temp_real), [temp_im]"=&f"(temp_im)
545                 : [phi1]"r"(phi1), [temp0]"f"(temp0), [temp1]"f"(temp1),
546                   [temp2]"f"(temp2), [temp3]"f"(temp3), [temp4]"f"(temp4),
547                   [temp5]"f"(temp5), [temp6]"f"(temp6),
548                   [alpha_1]"r"(alpha_1), [dk]"f"(dk)
549                 : "memory"
550             );
551         }
552
553         if (!phi1[4]) {
554             alpha_0[0] = 0;
555             alpha_0[1] = 0;
556         } else {
557             __asm__ volatile (
558                 "lwc1    %[temp6],     0(%[alpha_1])                     \n\t"
559                 "lwc1    %[temp7],     4(%[alpha_1])                     \n\t"
560                 "mul.s   %[temp_real], %[temp6],     %[temp2]            \n\t"
561                 "add.s   %[temp_real], %[temp_real], %[temp4]            \n\t"
562                 "madd.s  %[temp_real], %[temp_real], %[temp7], %[temp3]  \n\t"
563                 "mul.s   %[temp_im],   %[temp7],     %[temp2]            \n\t"
564                 "add.s   %[temp_im],   %[temp_im],   %[temp5]            \n\t"
565                 "nmsub.s %[temp_im],   %[temp_im],   %[temp6], %[temp3]  \n\t"
566                 "div.s   %[temp_real], %[temp_real], %[temp1]            \n\t"
567                 "div.s   %[temp_im],   %[temp_im],   %[temp1]            \n\t"
568                 "neg.s   %[temp_real], %[temp_real]                      \n\t"
569                 "neg.s   %[temp_im],   %[temp_im]                        \n\t"
570                 "swc1    %[temp_real], 0(%[alpha_0])                     \n\t"
571                 "swc1    %[temp_im],   4(%[alpha_0])                     \n\t"
572
573                 : [temp_real]"=&f"(temp_real), [temp_im]"=&f"(temp_im),
574                   [temp6]"=&f"(temp6), [temp7]"=&f"(temp7),
575                   [res1]"=&f"(res1), [res2]"=&f"(res2)
576                 : [alpha_1]"r"(alpha_1), [alpha_0]"r"(alpha_0),
577                   [temp0]"f"(temp0), [temp1]"f"(temp1), [temp2]"f"(temp2),
578                   [temp3]"f"(temp3), [temp4]"f"(temp4), [temp5]"f"(temp5)
579                 : "memory"
580             );
581         }
582
583         __asm__ volatile (
584             "lwc1    %[temp1],      0(%[alpha_1])                           \n\t"
585             "lwc1    %[temp2],      4(%[alpha_1])                           \n\t"
586             "lwc1    %[temp_real],  0(%[alpha_0])                           \n\t"
587             "lwc1    %[temp_im],    4(%[alpha_0])                           \n\t"
588             "mul.s   %[res1],       %[temp1],      %[temp1]                 \n\t"
589             "madd.s  %[res1],       %[res1],       %[temp2],    %[temp2]    \n\t"
590             "mul.s   %[res2],       %[temp_real],  %[temp_real]             \n\t"
591             "madd.s  %[res2],       %[res2],       %[temp_im],  %[temp_im]  \n\t"
592
593             : [temp_real]"=&f"(temp_real), [temp_im]"=&f"(temp_im),
594               [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
595               [res1]"=&f"(res1), [res2]"=&f"(res2)
596             : [alpha_1]"r"(alpha_1), [alpha_0]"r"(alpha_0)
597             : "memory"
598         );
599
600         if (res1 >= 16.0f || res2 >= 16.0f) {
601             alpha_1[0] = 0;
602             alpha_1[1] = 0;
603             alpha_0[0] = 0;
604             alpha_0[1] = 0;
605         }
606     }
607 }
608 #endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
609 #endif /* HAVE_MIPSFPU */
610 #endif /* HAVE_INLINE_ASM */
611
612 void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c)
613 {
614 #if HAVE_INLINE_ASM
615 #if HAVE_MIPSFPU
616     c->sbr_lf_gen            = sbr_lf_gen_mips;
617     c->sbr_x_gen             = sbr_x_gen_mips;
618 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
619     c->sbr_hf_inverse_filter = sbr_hf_inverse_filter_mips;
620     c->sbr_hf_assemble       = sbr_hf_assemble_mips;
621 #endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
622 #endif /* HAVE_MIPSFPU */
623 #endif /* HAVE_INLINE_ASM */
624 }