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 * Author: Nedeljko Babic (nbabic@mips.com)
30 *
31 * This file is part of FFmpeg.
32 *
33 * FFmpeg is free software; you can redistribute it and/or
34 * modify it under the terms of the GNU Lesser General Public
35 * License as published by the Free Software Foundation; either
36 * version 2.1 of the License, or (at your option) any later version.
37 *
38 * FFmpeg is distributed in the hope that it will be useful,
39 * but WITHOUT ANY WARRANTY; without even the implied warranty of
40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41 * Lesser General Public License for more details.
42 *
43 * You should have received a copy of the GNU Lesser General Public
44 * License along with FFmpeg; if not, write to the Free Software
45 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
46 */
47
48 /**
49 * @file
50 * Reference: libavcodec/amrwbdec.c
51 */
52 #include "libavutil/avutil.h"
53 #include "libavcodec/amrwbdata.h"
54 #include "amrwbdec_mips.h"
55
56 #if HAVE_INLINE_ASM
57 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
ff_hb_fir_filter_mips(float * out,const float fir_coef[HB_FIR_SIZE+1],float mem[HB_FIR_SIZE],const float * in)58 void ff_hb_fir_filter_mips(float *out, const float fir_coef[HB_FIR_SIZE + 1],
59 float mem[HB_FIR_SIZE], const float *in)
60 {
61 int i;
62 float data[AMRWB_SFR_SIZE_16k + HB_FIR_SIZE]; // past and current samples
63
64 memcpy(data, mem, HB_FIR_SIZE * sizeof(float));
65 memcpy(data + HB_FIR_SIZE, in, AMRWB_SFR_SIZE_16k * sizeof(float));
66
67 for (i = 0; i < AMRWB_SFR_SIZE_16k; i++) {
68 float output;
69 float * p_data = (data+i);
70
71 /**
72 * inner loop is entirely unrolled and instructions are scheduled
73 * to minimize pipeline stall
74 */
75 __asm__ volatile(
76 "mtc1 $zero, %[output] \n\t"
77 "lwc1 $f0, 0(%[p_data]) \n\t"
78 "lwc1 $f1, 0(%[fir_coef]) \n\t"
79 "lwc1 $f2, 4(%[p_data]) \n\t"
80 "madd.s %[output], %[output], $f0, $f1 \n\t"
81 "lwc1 $f3, 4(%[fir_coef]) \n\t"
82 "lwc1 $f4, 8(%[p_data]) \n\t"
83 "madd.s %[output], %[output], $f2, $f3 \n\t"
84 "lwc1 $f5, 8(%[fir_coef]) \n\t"
85
86 "lwc1 $f0, 12(%[p_data]) \n\t"
87 "lwc1 $f1, 12(%[fir_coef]) \n\t"
88 "madd.s %[output], %[output], $f4, $f5 \n\t"
89 "lwc1 $f2, 16(%[p_data]) \n\t"
90 "madd.s %[output], %[output], $f0, $f1 \n\t"
91 "lwc1 $f3, 16(%[fir_coef]) \n\t"
92 "lwc1 $f4, 20(%[p_data]) \n\t"
93 "lwc1 $f5, 20(%[fir_coef]) \n\t"
94 "madd.s %[output], %[output], $f2, $f3 \n\t"
95
96 "lwc1 $f0, 24(%[p_data]) \n\t"
97 "lwc1 $f1, 24(%[fir_coef]) \n\t"
98 "lwc1 $f2, 28(%[p_data]) \n\t"
99 "madd.s %[output], %[output], $f4, $f5 \n\t"
100 "lwc1 $f3, 28(%[fir_coef]) \n\t"
101 "madd.s %[output], %[output], $f0, $f1 \n\t"
102 "lwc1 $f4, 32(%[p_data]) \n\t"
103 "madd.s %[output], %[output], $f2, $f3 \n\t"
104 "lwc1 $f5, 32(%[fir_coef]) \n\t"
105 "madd.s %[output], %[output], $f4, $f5 \n\t"
106
107 "lwc1 $f0, 36(%[p_data]) \n\t"
108 "lwc1 $f1, 36(%[fir_coef]) \n\t"
109 "lwc1 $f2, 40(%[p_data]) \n\t"
110 "lwc1 $f3, 40(%[fir_coef]) \n\t"
111 "madd.s %[output], %[output], $f0, $f1 \n\t"
112 "lwc1 $f4, 44(%[p_data]) \n\t"
113 "lwc1 $f5, 44(%[fir_coef]) \n\t"
114 "madd.s %[output], %[output], $f2, $f3 \n\t"
115
116 "lwc1 $f0, 48(%[p_data]) \n\t"
117 "lwc1 $f1, 48(%[fir_coef]) \n\t"
118 "lwc1 $f2, 52(%[p_data]) \n\t"
119 "madd.s %[output], %[output], $f4, $f5 \n\t"
120 "lwc1 $f3, 52(%[fir_coef]) \n\t"
121 "lwc1 $f4, 56(%[p_data]) \n\t"
122 "madd.s %[output], %[output], $f0, $f1 \n\t"
123 "lwc1 $f5, 56(%[fir_coef]) \n\t"
124 "madd.s %[output], %[output], $f2, $f3 \n\t"
125
126 "lwc1 $f0, 60(%[p_data]) \n\t"
127 "lwc1 $f1, 60(%[fir_coef]) \n\t"
128 "lwc1 $f2, 64(%[p_data]) \n\t"
129 "madd.s %[output], %[output], $f4, $f5 \n\t"
130 "lwc1 $f3, 64(%[fir_coef]) \n\t"
131 "madd.s %[output], %[output], $f0, $f1 \n\t"
132 "lwc1 $f4, 68(%[p_data]) \n\t"
133 "madd.s %[output], %[output], $f2, $f3 \n\t"
134 "lwc1 $f5, 68(%[fir_coef]) \n\t"
135 "madd.s %[output], %[output], $f4, $f5 \n\t"
136
137 "lwc1 $f0, 72(%[p_data]) \n\t"
138 "lwc1 $f1, 72(%[fir_coef]) \n\t"
139 "lwc1 $f2, 76(%[p_data]) \n\t"
140 "lwc1 $f3, 76(%[fir_coef]) \n\t"
141 "madd.s %[output], %[output], $f0, $f1 \n\t"
142 "lwc1 $f4, 80(%[p_data]) \n\t"
143 "lwc1 $f5, 80(%[fir_coef]) \n\t"
144 "madd.s %[output], %[output], $f2, $f3 \n\t"
145
146 "lwc1 $f0, 84(%[p_data]) \n\t"
147 "lwc1 $f1, 84(%[fir_coef]) \n\t"
148 "lwc1 $f2, 88(%[p_data]) \n\t"
149 "madd.s %[output], %[output], $f4, $f5 \n\t"
150 "lwc1 $f3, 88(%[fir_coef]) \n\t"
151 "lwc1 $f4, 92(%[p_data]) \n\t"
152 "madd.s %[output], %[output], $f0, $f1 \n\t"
153 "lwc1 $f5, 92(%[fir_coef]) \n\t"
154 "madd.s %[output], %[output], $f2, $f3 \n\t"
155
156 "lwc1 $f0, 96(%[p_data]) \n\t"
157 "lwc1 $f1, 96(%[fir_coef]) \n\t"
158 "lwc1 $f2, 100(%[p_data]) \n\t"
159 "madd.s %[output], %[output], $f4, $f5 \n\t"
160 "lwc1 $f3, 100(%[fir_coef]) \n\t"
161 "lwc1 $f4, 104(%[p_data]) \n\t"
162 "madd.s %[output], %[output], $f0, $f1 \n\t"
163 "lwc1 $f5, 104(%[fir_coef]) \n\t"
164 "madd.s %[output], %[output], $f2, $f3 \n\t"
165
166 "lwc1 $f0, 108(%[p_data]) \n\t"
167 "lwc1 $f1, 108(%[fir_coef]) \n\t"
168 "madd.s %[output], %[output], $f4, $f5 \n\t"
169 "lwc1 $f2, 112(%[p_data]) \n\t"
170 "lwc1 $f3, 112(%[fir_coef]) \n\t"
171 "madd.s %[output], %[output], $f0, $f1 \n\t"
172 "lwc1 $f4, 116(%[p_data]) \n\t"
173 "lwc1 $f5, 116(%[fir_coef]) \n\t"
174 "lwc1 $f0, 120(%[p_data]) \n\t"
175 "madd.s %[output], %[output], $f2, $f3 \n\t"
176 "lwc1 $f1, 120(%[fir_coef]) \n\t"
177 "madd.s %[output], %[output], $f4, $f5 \n\t"
178 "madd.s %[output], %[output], $f0, $f1 \n\t"
179
180 : [output]"=&f"(output)
181 : [fir_coef]"r"(fir_coef), [p_data]"r"(p_data)
182 : "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "memory"
183 );
184 out[i] = output;
185 }
186 memcpy(mem, data + AMRWB_SFR_SIZE_16k, HB_FIR_SIZE * sizeof(float));
187 }
188 #endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
189 #endif /* HAVE_INLINE_ASM */
190