libavcodec/mips/aacsbr_mips: fix ;;
[ffmpeg.git] / 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
57 #define ENVELOPE_ADJUSTMENT_OFFSET 2
58
59 #if HAVE_INLINE_ASM
60 static int sbr_lf_gen_mips(AACContext *ac, SpectralBandReplication *sbr,
61                       float X_low[32][40][2], const float W[2][32][32][2],
62                       int buf_idx)
63 {
64     int i, k;
65     int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
66     float *p_x_low = &X_low[0][8][0];
67     float *p_w = (float*)&W[buf_idx][0][0][0];
68     float *p_x1_low = &X_low[0][0][0];
69     float *p_w1 = (float*)&W[1-buf_idx][24][0][0];
70
71     float *loop_end=p_x1_low + 2560;
72
73     /* loop unrolled 8 times */
74     __asm__ volatile (
75     "1:                                                 \n\t"
76         "sw     $0,            0(%[p_x1_low])           \n\t"
77         "sw     $0,            4(%[p_x1_low])           \n\t"
78         "sw     $0,            8(%[p_x1_low])           \n\t"
79         "sw     $0,            12(%[p_x1_low])          \n\t"
80         "sw     $0,            16(%[p_x1_low])          \n\t"
81         "sw     $0,            20(%[p_x1_low])          \n\t"
82         "sw     $0,            24(%[p_x1_low])          \n\t"
83         "sw     $0,            28(%[p_x1_low])          \n\t"
84         "addiu  %[p_x1_low],   %[p_x1_low],      32     \n\t"
85         "bne    %[p_x1_low],   %[loop_end],      1b     \n\t"
86         "addiu  %[p_x1_low],   %[p_x1_low],      -10240 \n\t"
87
88         : [p_x1_low]"+r"(p_x1_low)
89         : [loop_end]"r"(loop_end)
90         : "memory"
91     );
92
93     for (k = 0; k < sbr->kx[1]; k++) {
94         for (i = 0; i < 32; i+=4) {
95             /* loop unrolled 4 times */
96             __asm__ volatile (
97                 "lw     %[temp0],   0(%[p_w])               \n\t"
98                 "lw     %[temp1],   4(%[p_w])               \n\t"
99                 "lw     %[temp2],   256(%[p_w])             \n\t"
100                 "lw     %[temp3],   260(%[p_w])             \n\t"
101                 "lw     %[temp4],   512(%[p_w])             \n\t"
102                 "lw     %[temp5],   516(%[p_w])             \n\t"
103                 "lw     %[temp6],   768(%[p_w])             \n\t"
104                 "lw     %[temp7],   772(%[p_w])             \n\t"
105                 "sw     %[temp0],   0(%[p_x_low])           \n\t"
106                 "sw     %[temp1],   4(%[p_x_low])           \n\t"
107                 "sw     %[temp2],   8(%[p_x_low])           \n\t"
108                 "sw     %[temp3],   12(%[p_x_low])          \n\t"
109                 "sw     %[temp4],   16(%[p_x_low])          \n\t"
110                 "sw     %[temp5],   20(%[p_x_low])          \n\t"
111                 "sw     %[temp6],   24(%[p_x_low])          \n\t"
112                 "sw     %[temp7],   28(%[p_x_low])          \n\t"
113                 "addiu  %[p_x_low], %[p_x_low],     32      \n\t"
114                 "addiu  %[p_w],     %[p_w],         1024    \n\t"
115
116                 : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
117                   [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
118                   [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
119                   [temp6]"=&r"(temp6), [temp7]"=&r"(temp7),
120                   [p_w]"+r"(p_w), [p_x_low]"+r"(p_x_low)
121                 :
122                 : "memory"
123             );
124         }
125         p_x_low += 16;
126         p_w -= 2046;
127     }
128
129     for (k = 0; k < sbr->kx[0]; k++) {
130         for (i = 0; i < 2; i++) {
131
132             /* loop unrolled 4 times */
133             __asm__ volatile (
134                 "lw     %[temp0],    0(%[p_w1])             \n\t"
135                 "lw     %[temp1],    4(%[p_w1])             \n\t"
136                 "lw     %[temp2],    256(%[p_w1])           \n\t"
137                 "lw     %[temp3],    260(%[p_w1])           \n\t"
138                 "lw     %[temp4],    512(%[p_w1])           \n\t"
139                 "lw     %[temp5],    516(%[p_w1])           \n\t"
140                 "lw     %[temp6],    768(%[p_w1])           \n\t"
141                 "lw     %[temp7],    772(%[p_w1])           \n\t"
142                 "sw     %[temp0],    0(%[p_x1_low])         \n\t"
143                 "sw     %[temp1],    4(%[p_x1_low])         \n\t"
144                 "sw     %[temp2],    8(%[p_x1_low])         \n\t"
145                 "sw     %[temp3],    12(%[p_x1_low])        \n\t"
146                 "sw     %[temp4],    16(%[p_x1_low])        \n\t"
147                 "sw     %[temp5],    20(%[p_x1_low])        \n\t"
148                 "sw     %[temp6],    24(%[p_x1_low])        \n\t"
149                 "sw     %[temp7],    28(%[p_x1_low])        \n\t"
150                 "addiu  %[p_x1_low], %[p_x1_low],   32      \n\t"
151                 "addiu  %[p_w1],     %[p_w1],       1024    \n\t"
152
153                 : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
154                   [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
155                   [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
156                   [temp6]"=&r"(temp6), [temp7]"=&r"(temp7),
157                   [p_w1]"+r"(p_w1), [p_x1_low]"+r"(p_x1_low)
158                 :
159                 : "memory"
160             );
161         }
162         p_x1_low += 64;
163         p_w1 -= 510;
164     }
165     return 0;
166 }
167
168 static int sbr_x_gen_mips(SpectralBandReplication *sbr, float X[2][38][64],
169                      const float Y0[38][64][2], const float Y1[38][64][2],
170                      const float X_low[32][40][2], int ch)
171 {
172     int k, i;
173     const int i_f = 32;
174     int temp0, temp1, temp2, temp3;
175     const float *X_low1, *Y01, *Y11;
176     float *x1=&X[0][0][0];
177     float *j=x1+4864;
178     const int i_Temp = FFMAX(2*sbr->data[ch].t_env_num_env_old - i_f, 0);
179
180     /* loop unrolled 8 times */
181     __asm__ volatile (
182     "1:                                       \n\t"
183         "sw     $0,      0(%[x1])             \n\t"
184         "sw     $0,      4(%[x1])             \n\t"
185         "sw     $0,      8(%[x1])             \n\t"
186         "sw     $0,      12(%[x1])            \n\t"
187         "sw     $0,      16(%[x1])            \n\t"
188         "sw     $0,      20(%[x1])            \n\t"
189         "sw     $0,      24(%[x1])            \n\t"
190         "sw     $0,      28(%[x1])            \n\t"
191         "addiu  %[x1],   %[x1],      32       \n\t"
192         "bne    %[x1],   %[j],       1b       \n\t"
193         "addiu  %[x1],   %[x1],      -19456   \n\t"
194
195         : [x1]"+r"(x1)
196         : [j]"r"(j)
197         : "memory"
198     );
199
200     if (i_Temp != 0) {
201
202         X_low1=&X_low[0][2][0];
203
204         for (k = 0; k < sbr->kx[0]; k++) {
205
206             __asm__ volatile (
207                 "move    %[i],        $zero                  \n\t"
208             "2:                                              \n\t"
209                 "lw      %[temp0],    0(%[X_low1])           \n\t"
210                 "lw      %[temp1],    4(%[X_low1])           \n\t"
211                 "sw      %[temp0],    0(%[x1])               \n\t"
212                 "sw      %[temp1],    9728(%[x1])            \n\t"
213                 "addiu   %[x1],       %[x1],         256     \n\t"
214                 "addiu   %[X_low1],   %[X_low1],     8       \n\t"
215                 "addiu   %[i],        %[i],          1       \n\t"
216                 "bne     %[i],        %[i_Temp],     2b      \n\t"
217
218                 : [x1]"+r"(x1), [X_low1]"+r"(X_low1), [i]"=&r"(i),
219                   [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
220                 : [i_Temp]"r"(i_Temp)
221                 : "memory"
222             );
223             x1-=(i_Temp<<6)-1;
224             X_low1-=(i_Temp<<1)-80;
225         }
226
227         x1=&X[0][0][k];
228         Y01=(float*)&Y0[32][k][0];
229
230         for (; k < sbr->kx[0] + sbr->m[0]; k++) {
231             __asm__ volatile (
232                 "move    %[i],       $zero               \n\t"
233             "3:                                          \n\t"
234                 "lw      %[temp0],   0(%[Y01])           \n\t"
235                 "lw      %[temp1],   4(%[Y01])           \n\t"
236                 "sw      %[temp0],   0(%[x1])            \n\t"
237                 "sw      %[temp1],   9728(%[x1])         \n\t"
238                 "addiu   %[x1],      %[x1],      256     \n\t"
239                 "addiu   %[Y01],     %[Y01],     512     \n\t"
240                 "addiu   %[i],       %[i],       1       \n\t"
241                 "bne     %[i],       %[i_Temp],  3b      \n\t"
242
243                 : [x1]"+r"(x1), [Y01]"+r"(Y01), [i]"=&r"(i),
244                   [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
245                 : [i_Temp]"r"(i_Temp)
246                 : "memory"
247             );
248             x1 -=(i_Temp<<6)-1;
249             Y01 -=(i_Temp<<7)-2;
250         }
251     }
252
253     x1=&X[0][i_Temp][0];
254     X_low1=&X_low[0][i_Temp+2][0];
255     temp3=38;
256
257     for (k = 0; k < sbr->kx[1]; k++) {
258
259         __asm__ volatile (
260             "move    %[i],       %[i_Temp]              \n\t"
261         "4:                                             \n\t"
262             "lw      %[temp0],   0(%[X_low1])           \n\t"
263             "lw      %[temp1],   4(%[X_low1])           \n\t"
264             "sw      %[temp0],   0(%[x1])               \n\t"
265             "sw      %[temp1],   9728(%[x1])            \n\t"
266             "addiu   %[x1],      %[x1],         256     \n\t"
267             "addiu   %[X_low1],  %[X_low1],     8       \n\t"
268             "addiu   %[i],       %[i],          1       \n\t"
269             "bne     %[i],       %[temp3],      4b      \n\t"
270
271             : [x1]"+r"(x1), [X_low1]"+r"(X_low1), [i]"=&r"(i),
272               [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
273               [temp2]"=&r"(temp2)
274             : [i_Temp]"r"(i_Temp), [temp3]"r"(temp3)
275             : "memory"
276         );
277         x1 -= ((38-i_Temp)<<6)-1;
278         X_low1 -= ((38-i_Temp)<<1)- 80;
279     }
280
281     x1=&X[0][i_Temp][k];
282     Y11=&Y1[i_Temp][k][0];
283     temp2=32;
284
285     for (; k < sbr->kx[1] + sbr->m[1]; k++) {
286
287         __asm__ volatile (
288            "move    %[i],       %[i_Temp]               \n\t"
289         "5:                                             \n\t"
290            "lw      %[temp0],   0(%[Y11])               \n\t"
291            "lw      %[temp1],   4(%[Y11])               \n\t"
292            "sw      %[temp0],   0(%[x1])                \n\t"
293            "sw      %[temp1],   9728(%[x1])             \n\t"
294            "addiu   %[x1],      %[x1],          256     \n\t"
295            "addiu   %[Y11],     %[Y11],         512     \n\t"
296            "addiu   %[i],       %[i],           1       \n\t"
297            "bne     %[i],       %[temp2],       5b      \n\t"
298
299            : [x1]"+r"(x1), [Y11]"+r"(Y11), [i]"=&r"(i),
300              [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
301            : [i_Temp]"r"(i_Temp), [temp3]"r"(temp3),
302              [temp2]"r"(temp2)
303            : "memory"
304         );
305
306         x1 -= ((32-i_Temp)<<6)-1;
307         Y11 -= ((32-i_Temp)<<7)-2;
308    }
309       return 0;
310 }
311
312 #if HAVE_MIPSFPU
313 static void sbr_hf_assemble_mips(float Y1[38][64][2],
314                             const float X_high[64][40][2],
315                             SpectralBandReplication *sbr, SBRData *ch_data,
316                             const int e_a[2])
317 {
318     int e, i, j, m;
319     const int h_SL = 4 * !sbr->bs_smoothing_mode;
320     const int kx = sbr->kx[1];
321     const int m_max = sbr->m[1];
322     static const float h_smooth[5] = {
323         0.33333333333333,
324         0.30150283239582,
325         0.21816949906249,
326         0.11516383427084,
327         0.03183050093751,
328     };
329
330     float (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
331     int indexnoise = ch_data->f_indexnoise;
332     int indexsine  = ch_data->f_indexsine;
333     float *g_temp1, *q_temp1, *pok, *pok1;
334     float temp1, temp2, temp3, temp4;
335     int size = m_max;
336
337     if (sbr->reset) {
338         for (i = 0; i < h_SL; i++) {
339             memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
340             memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0],  m_max * sizeof(sbr->q_m[0][0]));
341         }
342     } else if (h_SL) {
343         memcpy(g_temp[2*ch_data->t_env[0]], g_temp[2*ch_data->t_env_num_env_old], 4*sizeof(g_temp[0]));
344         memcpy(q_temp[2*ch_data->t_env[0]], q_temp[2*ch_data->t_env_num_env_old], 4*sizeof(q_temp[0]));
345     }
346
347     for (e = 0; e < ch_data->bs_num_env; e++) {
348         for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
349             g_temp1 = g_temp[h_SL + i];
350             pok = sbr->gain[e];
351             q_temp1 = q_temp[h_SL + i];
352             pok1 = sbr->q_m[e];
353
354             /* loop unrolled 4 times */
355             for (j=0; j<(size>>2); j++) {
356                 __asm__ volatile (
357                     "lw      %[temp1],   0(%[pok])               \n\t"
358                     "lw      %[temp2],   4(%[pok])               \n\t"
359                     "lw      %[temp3],   8(%[pok])               \n\t"
360                     "lw      %[temp4],   12(%[pok])              \n\t"
361                     "sw      %[temp1],   0(%[g_temp1])           \n\t"
362                     "sw      %[temp2],   4(%[g_temp1])           \n\t"
363                     "sw      %[temp3],   8(%[g_temp1])           \n\t"
364                     "sw      %[temp4],   12(%[g_temp1])          \n\t"
365                     "lw      %[temp1],   0(%[pok1])              \n\t"
366                     "lw      %[temp2],   4(%[pok1])              \n\t"
367                     "lw      %[temp3],   8(%[pok1])              \n\t"
368                     "lw      %[temp4],   12(%[pok1])             \n\t"
369                     "sw      %[temp1],   0(%[q_temp1])           \n\t"
370                     "sw      %[temp2],   4(%[q_temp1])           \n\t"
371                     "sw      %[temp3],   8(%[q_temp1])           \n\t"
372                     "sw      %[temp4],   12(%[q_temp1])          \n\t"
373                     "addiu   %[pok],     %[pok],           16    \n\t"
374                     "addiu   %[g_temp1], %[g_temp1],       16    \n\t"
375                     "addiu   %[pok1],    %[pok1],          16    \n\t"
376                     "addiu   %[q_temp1], %[q_temp1],       16    \n\t"
377
378                     : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
379                       [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
380                       [pok]"+r"(pok), [g_temp1]"+r"(g_temp1),
381                       [pok1]"+r"(pok1), [q_temp1]"+r"(q_temp1)
382                     :
383                     : "memory"
384                 );
385             }
386
387             for (j=0; j<(size&3); j++) {
388                 __asm__ volatile (
389                     "lw      %[temp1],   0(%[pok])              \n\t"
390                     "lw      %[temp2],   0(%[pok1])             \n\t"
391                     "sw      %[temp1],   0(%[g_temp1])          \n\t"
392                     "sw      %[temp2],   0(%[q_temp1])          \n\t"
393                     "addiu   %[pok],     %[pok],          4     \n\t"
394                     "addiu   %[g_temp1], %[g_temp1],      4     \n\t"
395                     "addiu   %[pok1],    %[pok1],         4     \n\t"
396                     "addiu   %[q_temp1], %[q_temp1],      4     \n\t"
397
398                     : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
399                       [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
400                       [pok]"+r"(pok), [g_temp1]"+r"(g_temp1),
401                       [pok1]"+r"(pok1), [q_temp1]"+r"(q_temp1)
402                     :
403                     : "memory"
404                 );
405             }
406         }
407     }
408
409     for (e = 0; e < ch_data->bs_num_env; e++) {
410         for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
411             LOCAL_ALIGNED_16(float, g_filt_tab, [48]);
412             LOCAL_ALIGNED_16(float, q_filt_tab, [48]);
413             float *g_filt, *q_filt;
414
415             if (h_SL && e != e_a[0] && e != e_a[1]) {
416                 g_filt = g_filt_tab;
417                 q_filt = q_filt_tab;
418
419                 for (m = 0; m < m_max; m++) {
420                     const int idx1 = i + h_SL;
421                     g_filt[m] = 0.0f;
422                     q_filt[m] = 0.0f;
423
424                     for (j = 0; j <= h_SL; j++) {
425                         g_filt[m] += g_temp[idx1 - j][m] * h_smooth[j];
426                         q_filt[m] += q_temp[idx1 - j][m] * h_smooth[j];
427                     }
428                 }
429             } else {
430                 g_filt = g_temp[i + h_SL];
431                 q_filt = q_temp[i];
432             }
433
434             sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
435                                i + ENVELOPE_ADJUSTMENT_OFFSET);
436
437             if (e != e_a[0] && e != e_a[1]) {
438                 sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
439                                                    q_filt, indexnoise,
440                                                    kx, m_max);
441             } else {
442                 int idx = indexsine&1;
443                 int A = (1-((indexsine+(kx & 1))&2));
444                 int B = (A^(-idx)) + idx;
445                 float *out = &Y1[i][kx][idx];
446                 float *in  = sbr->s_m[e];
447                 float temp0, temp1, temp2, temp3, temp4, temp5;
448                 float A_f = (float)A;
449                 float B_f = (float)B;
450
451                 for (m = 0; m+1 < m_max; m+=2) {
452
453                     temp2 = out[0];
454                     temp3 = out[2];
455
456                     __asm__ volatile(
457                         "lwc1    %[temp0],  0(%[in])                     \n\t"
458                         "lwc1    %[temp1],  4(%[in])                     \n\t"
459                         "madd.s  %[temp4],  %[temp2],  %[temp0], %[A_f]  \n\t"
460                         "madd.s  %[temp5],  %[temp3],  %[temp1], %[B_f]  \n\t"
461                         "swc1    %[temp4],  0(%[out])                    \n\t"
462                         "swc1    %[temp5],  8(%[out])                    \n\t"
463                         "addiu   %[in],     %[in],     8                 \n\t"
464                         "addiu   %[out],    %[out],    16                \n\t"
465
466                         : [temp0]"=&f" (temp0), [temp1]"=&f"(temp1),
467                           [temp4]"=&f" (temp4), [temp5]"=&f"(temp5),
468                           [in]"+r"(in), [out]"+r"(out)
469                         : [A_f]"f"(A_f), [B_f]"f"(B_f), [temp2]"f"(temp2),
470                           [temp3]"f"(temp3)
471                         : "memory"
472                     );
473                 }
474                 if(m_max&1)
475                     out[2*m  ] += in[m  ] * A;
476             }
477             indexnoise = (indexnoise + m_max) & 0x1ff;
478             indexsine = (indexsine + 1) & 3;
479         }
480     }
481     ch_data->f_indexnoise = indexnoise;
482     ch_data->f_indexsine  = indexsine;
483 }
484
485 static void sbr_hf_inverse_filter_mips(SBRDSPContext *dsp,
486                                   float (*alpha0)[2], float (*alpha1)[2],
487                                   const float X_low[32][40][2], int k0)
488 {
489     int k;
490     float temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, c;
491     float *phi1, *alpha_1, *alpha_0, res1, res2, temp_real, temp_im;
492
493     c = 1.000001f;
494
495     for (k = 0; k < k0; k++) {
496         LOCAL_ALIGNED_16(float, phi, [3], [2][2]);
497         float dk;
498         phi1 = &phi[0][0][0];
499         alpha_1 = &alpha1[k][0];
500         alpha_0 = &alpha0[k][0];
501         dsp->autocorrelate(X_low[k], phi);
502
503         __asm__ volatile (
504             "lwc1    %[temp0],  40(%[phi1])                       \n\t"
505             "lwc1    %[temp1],  16(%[phi1])                       \n\t"
506             "lwc1    %[temp2],  24(%[phi1])                       \n\t"
507             "lwc1    %[temp3],  28(%[phi1])                       \n\t"
508             "mul.s   %[dk],     %[temp0],    %[temp1]             \n\t"
509             "lwc1    %[temp4],  0(%[phi1])                        \n\t"
510             "mul.s   %[res2],   %[temp2],    %[temp2]             \n\t"
511             "lwc1    %[temp5],  4(%[phi1])                        \n\t"
512             "madd.s  %[res2],   %[res2],     %[temp3],  %[temp3]  \n\t"
513             "lwc1    %[temp6],  8(%[phi1])                        \n\t"
514             "div.s   %[res2],   %[res2],     %[c]                 \n\t"
515             "lwc1    %[temp0],  12(%[phi1])                       \n\t"
516             "sub.s   %[dk],     %[dk],       %[res2]              \n\t"
517
518             : [temp0]"=&f"(temp0), [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
519               [temp3]"=&f"(temp3), [temp4]"=&f"(temp4), [temp5]"=&f"(temp5),
520               [temp6]"=&f"(temp6), [res2]"=&f"(res2), [dk]"=&f"(dk)
521             : [phi1]"r"(phi1), [c]"f"(c)
522             : "memory"
523         );
524
525         if (!dk) {
526             alpha_1[0] = 0;
527             alpha_1[1] = 0;
528         } else {
529             __asm__ volatile (
530                 "mul.s   %[temp_real], %[temp4],     %[temp2]            \n\t"
531                 "nmsub.s %[temp_real], %[temp_real], %[temp5], %[temp3]  \n\t"
532                 "nmsub.s %[temp_real], %[temp_real], %[temp6], %[temp1]  \n\t"
533                 "mul.s   %[temp_im],   %[temp4],     %[temp3]            \n\t"
534                 "madd.s  %[temp_im],   %[temp_im],   %[temp5], %[temp2]  \n\t"
535                 "nmsub.s %[temp_im],   %[temp_im],   %[temp0], %[temp1]  \n\t"
536                 "div.s   %[temp_real], %[temp_real], %[dk]               \n\t"
537                 "div.s   %[temp_im],   %[temp_im],   %[dk]               \n\t"
538                 "swc1    %[temp_real], 0(%[alpha_1])                     \n\t"
539                 "swc1    %[temp_im],   4(%[alpha_1])                     \n\t"
540
541                 : [temp_real]"=&f" (temp_real), [temp_im]"=&f"(temp_im)
542                 : [phi1]"r"(phi1), [temp0]"f"(temp0), [temp1]"f"(temp1),
543                   [temp2]"f"(temp2), [temp3]"f"(temp3), [temp4]"f"(temp4),
544                   [temp5]"f"(temp5), [temp6]"f"(temp6),
545                   [alpha_1]"r"(alpha_1), [dk]"f"(dk)
546                 : "memory"
547             );
548         }
549
550         if (!phi1[4]) {
551             alpha_0[0] = 0;
552             alpha_0[1] = 0;
553         } else {
554             __asm__ volatile (
555                 "lwc1    %[temp6],     0(%[alpha_1])                     \n\t"
556                 "lwc1    %[temp7],     4(%[alpha_1])                     \n\t"
557                 "mul.s   %[temp_real], %[temp6],     %[temp2]            \n\t"
558                 "add.s   %[temp_real], %[temp_real], %[temp4]            \n\t"
559                 "madd.s  %[temp_real], %[temp_real], %[temp7], %[temp3]  \n\t"
560                 "mul.s   %[temp_im],   %[temp7],     %[temp2]            \n\t"
561                 "add.s   %[temp_im],   %[temp_im],   %[temp5]            \n\t"
562                 "nmsub.s %[temp_im],   %[temp_im],   %[temp6], %[temp3]  \n\t"
563                 "div.s   %[temp_real], %[temp_real], %[temp1]            \n\t"
564                 "div.s   %[temp_im],   %[temp_im],   %[temp1]            \n\t"
565                 "neg.s   %[temp_real], %[temp_real]                      \n\t"
566                 "neg.s   %[temp_im],   %[temp_im]                        \n\t"
567                 "swc1    %[temp_real], 0(%[alpha_0])                     \n\t"
568                 "swc1    %[temp_im],   4(%[alpha_0])                     \n\t"
569
570                 : [temp_real]"=&f"(temp_real), [temp_im]"=&f"(temp_im),
571                   [temp6]"=&f"(temp6), [temp7]"=&f"(temp7),
572                   [res1]"=&f"(res1), [res2]"=&f"(res2)
573                 : [alpha_1]"r"(alpha_1), [alpha_0]"r"(alpha_0),
574                   [temp0]"f"(temp0), [temp1]"f"(temp1), [temp2]"f"(temp2),
575                   [temp3]"f"(temp3), [temp4]"f"(temp4), [temp5]"f"(temp5)
576                 : "memory"
577             );
578         }
579
580         __asm__ volatile (
581             "lwc1    %[temp1],      0(%[alpha_1])                           \n\t"
582             "lwc1    %[temp2],      4(%[alpha_1])                           \n\t"
583             "lwc1    %[temp_real],  0(%[alpha_0])                           \n\t"
584             "lwc1    %[temp_im],    4(%[alpha_0])                           \n\t"
585             "mul.s   %[res1],       %[temp1],      %[temp1]                 \n\t"
586             "madd.s  %[res1],       %[res1],       %[temp2],    %[temp2]    \n\t"
587             "mul.s   %[res2],       %[temp_real],  %[temp_real]             \n\t"
588             "madd.s  %[res2],       %[res2],       %[temp_im],  %[temp_im]  \n\t"
589
590             : [temp_real]"=&f"(temp_real), [temp_im]"=&f"(temp_im),
591               [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
592               [res1]"=&f"(res1), [res2]"=&f"(res2)
593             : [alpha_1]"r"(alpha_1), [alpha_0]"r"(alpha_0)
594             : "memory"
595         );
596
597         if (res1 >= 16.0f || res2 >= 16.0f) {
598             alpha_1[0] = 0;
599             alpha_1[1] = 0;
600             alpha_0[0] = 0;
601             alpha_0[1] = 0;
602         }
603     }
604 }
605 #endif /* HAVE_MIPSFPU */
606 #endif /* HAVE_INLINE_ASM */
607
608 void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c)
609 {
610 #if HAVE_INLINE_ASM
611     c->sbr_lf_gen            = sbr_lf_gen_mips;
612     c->sbr_x_gen             = sbr_x_gen_mips;
613 #if HAVE_MIPSFPU
614     c->sbr_hf_inverse_filter = sbr_hf_inverse_filter_mips;
615     c->sbr_hf_assemble       = sbr_hf_assemble_mips;
616 #endif /* HAVE_MIPSFPU */
617 #endif /* HAVE_INLINE_ASM */
618 }