3 * MIPS Technologies, Inc., California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 * Author: Branimir Vasic (bvasic@mips.com)
30 * Author: Zoran Lukic (zoranl@mips.com)
32 * This file is part of FFmpeg.
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.
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.
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
51 * Reference: libavutil/float_dsp.c
55 #include "libavutil/float_dsp.h"
56 #include "libavutil/mips/asmdefs.h"
58 #if HAVE_INLINE_ASM && HAVE_MIPSFPU
59 static void vector_fmul_mips(float *dst, const float *src0, const float *src1,
65 for (i = 0; i < len; i++)
66 dst[i] = src0[i] * src1[i];
68 float *d = (float *)dst;
69 float *d_end = d + len;
70 float *s0 = (float *)src0;
71 float *s1 = (float *)src1;
73 float src0_0, src0_1, src0_2, src0_3;
74 float src1_0, src1_1, src1_2, src1_3;
78 "lwc1 %[src0_0], 0(%[s0]) \n\t"
79 "lwc1 %[src1_0], 0(%[s1]) \n\t"
80 "lwc1 %[src0_1], 4(%[s0]) \n\t"
81 "lwc1 %[src1_1], 4(%[s1]) \n\t"
82 "lwc1 %[src0_2], 8(%[s0]) \n\t"
83 "lwc1 %[src1_2], 8(%[s1]) \n\t"
84 "lwc1 %[src0_3], 12(%[s0]) \n\t"
85 "lwc1 %[src1_3], 12(%[s1]) \n\t"
86 "mul.s %[src0_0], %[src0_0], %[src1_0] \n\t"
87 "mul.s %[src0_1], %[src0_1], %[src1_1] \n\t"
88 "mul.s %[src0_2], %[src0_2], %[src1_2] \n\t"
89 "mul.s %[src0_3], %[src0_3], %[src1_3] \n\t"
90 "swc1 %[src0_0], 0(%[d]) \n\t"
91 "swc1 %[src0_1], 4(%[d]) \n\t"
92 "swc1 %[src0_2], 8(%[d]) \n\t"
93 "swc1 %[src0_3], 12(%[d]) \n\t"
94 PTR_ADDIU "%[s0], %[s0], 16 \n\t"
95 PTR_ADDIU "%[s1], %[s1], 16 \n\t"
96 PTR_ADDIU "%[d], %[d], 16 \n\t"
97 "bne %[d], %[d_end], 1b \n\t"
99 : [src0_0]"=&f"(src0_0), [src0_1]"=&f"(src0_1),
100 [src0_2]"=&f"(src0_2), [src0_3]"=&f"(src0_3),
101 [src1_0]"=&f"(src1_0), [src1_1]"=&f"(src1_1),
102 [src1_2]"=&f"(src1_2), [src1_3]"=&f"(src1_3),
103 [d]"+r"(d), [s0]"+r"(s0), [s1]"+r"(s1)
110 static void vector_fmul_scalar_mips(float *dst, const float *src, float mul,
113 float temp0, temp1, temp2, temp3;
114 float *local_src = (float*)src;
115 float *end = local_src + len;
117 /* loop unrolled 4 times */
120 ".set noreorder \n\t"
122 "lwc1 %[temp0], 0(%[src]) \n\t"
123 "lwc1 %[temp1], 4(%[src]) \n\t"
124 "lwc1 %[temp2], 8(%[src]) \n\t"
125 "lwc1 %[temp3], 12(%[src]) \n\t"
126 PTR_ADDIU "%[dst], %[dst], 16 \n\t"
127 "mul.s %[temp0], %[temp0], %[mul] \n\t"
128 "mul.s %[temp1], %[temp1], %[mul] \n\t"
129 "mul.s %[temp2], %[temp2], %[mul] \n\t"
130 "mul.s %[temp3], %[temp3], %[mul] \n\t"
131 PTR_ADDIU "%[src], %[src], 16 \n\t"
132 "swc1 %[temp0], -16(%[dst]) \n\t"
133 "swc1 %[temp1], -12(%[dst]) \n\t"
134 "swc1 %[temp2], -8(%[dst]) \n\t"
135 "bne %[src], %[end], 1b \n\t"
136 " swc1 %[temp3], -4(%[dst]) \n\t"
139 : [temp0]"=&f"(temp0), [temp1]"=&f"(temp1),
140 [temp2]"=&f"(temp2), [temp3]"=&f"(temp3),
141 [dst]"+r"(dst), [src]"+r"(local_src)
142 : [end]"r"(end), [mul]"f"(mul)
147 static void vector_fmul_window_mips(float *dst, const float *src0,
148 const float *src1, const float *win, int len)
150 float * dst_j, *win_j, *src0_i, *src1_j, *dst_i, *win_i;
151 float temp, temp1, temp2, temp3;
152 float s0, s01, s1, s11;
153 float wi, wi1, wi2, wi3;
154 float wj, wj1, wj2, wj3;
155 const float * lp_end = win + len;
157 win_i = (float *)win;
158 win_j = (float *)(win + 2 * len -1);
159 src1_j = (float *)(src1 + len - 1);
160 src0_i = (float *)src0;
161 dst_i = (float *)dst;
162 dst_j = (float *)(dst + 2 * len -1);
164 /* loop unrolled 4 times */
167 "lwc1 %[s1], 0(%[src1_j]) \n\t"
168 "lwc1 %[wi], 0(%[win_i]) \n\t"
169 "lwc1 %[wj], 0(%[win_j]) \n\t"
170 "lwc1 %[s11], -4(%[src1_j]) \n\t"
171 "lwc1 %[wi1], 4(%[win_i]) \n\t"
172 "lwc1 %[wj1], -4(%[win_j]) \n\t"
173 "lwc1 %[s0], 0(%[src0_i]) \n\t"
174 "lwc1 %[s01], 4(%[src0_i]) \n\t"
175 "mul.s %[temp], %[s1], %[wi] \n\t"
176 "mul.s %[temp1], %[s1], %[wj] \n\t"
177 "mul.s %[temp2], %[s11], %[wi1] \n\t"
178 "mul.s %[temp3], %[s11], %[wj1] \n\t"
179 "lwc1 %[s1], -8(%[src1_j]) \n\t"
180 "lwc1 %[wi2], 8(%[win_i]) \n\t"
181 "lwc1 %[wj2], -8(%[win_j]) \n\t"
182 "lwc1 %[s11], -12(%[src1_j]) \n\t"
183 "msub.s %[temp], %[temp], %[s0], %[wj] \n\t"
184 "madd.s %[temp1], %[temp1], %[s0], %[wi] \n\t"
185 "msub.s %[temp2], %[temp2], %[s01], %[wj1] \n\t"
186 "madd.s %[temp3], %[temp3], %[s01], %[wi1] \n\t"
187 "lwc1 %[wi3], 12(%[win_i]) \n\t"
188 "lwc1 %[wj3], -12(%[win_j]) \n\t"
189 "lwc1 %[s0], 8(%[src0_i]) \n\t"
190 "lwc1 %[s01], 12(%[src0_i]) \n\t"
191 "addiu %[src1_j],-16 \n\t"
192 "addiu %[win_i], 16 \n\t"
193 "addiu %[win_j], -16 \n\t"
194 "addiu %[src0_i], 16 \n\t"
195 "swc1 %[temp], 0(%[dst_i]) \n\t" /* dst[i] = s0*wj - s1*wi; */
196 "swc1 %[temp1], 0(%[dst_j]) \n\t" /* dst[j] = s0*wi + s1*wj; */
197 "swc1 %[temp2], 4(%[dst_i]) \n\t" /* dst[i+1] = s01*wj1 - s11*wi1; */
198 "swc1 %[temp3], -4(%[dst_j]) \n\t" /* dst[j-1] = s01*wi1 + s11*wj1; */
199 "mul.s %[temp], %[s1], %[wi2] \n\t"
200 "mul.s %[temp1], %[s1], %[wj2] \n\t"
201 "mul.s %[temp2], %[s11], %[wi3] \n\t"
202 "mul.s %[temp3], %[s11], %[wj3] \n\t"
203 "msub.s %[temp], %[temp], %[s0], %[wj2] \n\t"
204 "madd.s %[temp1], %[temp1], %[s0], %[wi2] \n\t"
205 "msub.s %[temp2], %[temp2], %[s01], %[wj3] \n\t"
206 "madd.s %[temp3], %[temp3], %[s01], %[wi3] \n\t"
207 "swc1 %[temp], 8(%[dst_i]) \n\t" /* dst[i+2] = s0*wj2 - s1*wi2; */
208 "swc1 %[temp1], -8(%[dst_j]) \n\t" /* dst[j-2] = s0*wi2 + s1*wj2; */
209 "swc1 %[temp2], 12(%[dst_i]) \n\t" /* dst[i+2] = s01*wj3 - s11*wi3; */
210 "swc1 %[temp3], -12(%[dst_j]) \n\t" /* dst[j-3] = s01*wi3 + s11*wj3; */
211 "addiu %[dst_i], 16 \n\t"
212 "addiu %[dst_j], -16 \n\t"
213 "bne %[win_i], %[lp_end], 1b \n\t"
214 : [temp]"=&f"(temp), [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
215 [temp3]"=&f"(temp3), [src0_i]"+r"(src0_i), [win_i]"+r"(win_i),
216 [src1_j]"+r"(src1_j), [win_j]"+r"(win_j), [dst_i]"+r"(dst_i),
217 [dst_j]"+r"(dst_j), [s0] "=&f"(s0), [s01]"=&f"(s01), [s1] "=&f"(s1),
218 [s11]"=&f"(s11), [wi] "=&f"(wi), [wj] "=&f"(wj), [wi2]"=&f"(wi2),
219 [wj2]"=&f"(wj2), [wi3]"=&f"(wi3), [wj3]"=&f"(wj3), [wi1]"=&f"(wi1),
221 : [lp_end]"r"(lp_end)
226 static void butterflies_float_mips(float *av_restrict v1, float *av_restrict v2,
229 float temp0, temp1, temp2, temp3, temp4;
230 float temp5, temp6, temp7, temp8, temp9;
231 float temp10, temp11, temp12, temp13, temp14, temp15;
235 /* loop unrolled 4 times */
237 "lwc1 %[temp0], 0(%[v1]) \n\t"
238 "lwc1 %[temp1], 4(%[v1]) \n\t"
239 "lwc1 %[temp2], 8(%[v1]) \n\t"
240 "lwc1 %[temp3], 12(%[v1]) \n\t"
241 "lwc1 %[temp4], 0(%[v2]) \n\t"
242 "lwc1 %[temp5], 4(%[v2]) \n\t"
243 "lwc1 %[temp6], 8(%[v2]) \n\t"
244 "lwc1 %[temp7], 12(%[v2]) \n\t"
245 "beq %[pom], $zero, 2f \n\t"
247 "sub.s %[temp8], %[temp0], %[temp4] \n\t"
248 "add.s %[temp9], %[temp0], %[temp4] \n\t"
249 "sub.s %[temp10], %[temp1], %[temp5] \n\t"
250 "add.s %[temp11], %[temp1], %[temp5] \n\t"
251 "sub.s %[temp12], %[temp2], %[temp6] \n\t"
252 "add.s %[temp13], %[temp2], %[temp6] \n\t"
253 "sub.s %[temp14], %[temp3], %[temp7] \n\t"
254 "add.s %[temp15], %[temp3], %[temp7] \n\t"
255 PTR_ADDIU "%[v1], %[v1], 16 \n\t"
256 PTR_ADDIU "%[v2], %[v2], 16 \n\t"
257 "addiu %[pom], %[pom], -1 \n\t"
258 "lwc1 %[temp0], 0(%[v1]) \n\t"
259 "lwc1 %[temp1], 4(%[v1]) \n\t"
260 "lwc1 %[temp2], 8(%[v1]) \n\t"
261 "lwc1 %[temp3], 12(%[v1]) \n\t"
262 "lwc1 %[temp4], 0(%[v2]) \n\t"
263 "lwc1 %[temp5], 4(%[v2]) \n\t"
264 "lwc1 %[temp6], 8(%[v2]) \n\t"
265 "lwc1 %[temp7], 12(%[v2]) \n\t"
266 "swc1 %[temp9], -16(%[v1]) \n\t"
267 "swc1 %[temp8], -16(%[v2]) \n\t"
268 "swc1 %[temp11], -12(%[v1]) \n\t"
269 "swc1 %[temp10], -12(%[v2]) \n\t"
270 "swc1 %[temp13], -8(%[v1]) \n\t"
271 "swc1 %[temp12], -8(%[v2]) \n\t"
272 "swc1 %[temp15], -4(%[v1]) \n\t"
273 "swc1 %[temp14], -4(%[v2]) \n\t"
274 "bgtz %[pom], 1b \n\t"
276 "sub.s %[temp8], %[temp0], %[temp4] \n\t"
277 "add.s %[temp9], %[temp0], %[temp4] \n\t"
278 "sub.s %[temp10], %[temp1], %[temp5] \n\t"
279 "add.s %[temp11], %[temp1], %[temp5] \n\t"
280 "sub.s %[temp12], %[temp2], %[temp6] \n\t"
281 "add.s %[temp13], %[temp2], %[temp6] \n\t"
282 "sub.s %[temp14], %[temp3], %[temp7] \n\t"
283 "add.s %[temp15], %[temp3], %[temp7] \n\t"
284 "swc1 %[temp9], 0(%[v1]) \n\t"
285 "swc1 %[temp8], 0(%[v2]) \n\t"
286 "swc1 %[temp11], 4(%[v1]) \n\t"
287 "swc1 %[temp10], 4(%[v2]) \n\t"
288 "swc1 %[temp13], 8(%[v1]) \n\t"
289 "swc1 %[temp12], 8(%[v2]) \n\t"
290 "swc1 %[temp15], 12(%[v1]) \n\t"
291 "swc1 %[temp14], 12(%[v2]) \n\t"
293 : [v1]"+r"(v1), [v2]"+r"(v2), [pom]"+r"(pom), [temp0] "=&f" (temp0),
294 [temp1]"=&f"(temp1), [temp2]"=&f"(temp2), [temp3]"=&f"(temp3),
295 [temp4]"=&f"(temp4), [temp5]"=&f"(temp5), [temp6]"=&f"(temp6),
296 [temp7]"=&f"(temp7), [temp8]"=&f"(temp8), [temp9]"=&f"(temp9),
297 [temp10]"=&f"(temp10), [temp11]"=&f"(temp11), [temp12]"=&f"(temp12),
298 [temp13]"=&f"(temp13), [temp14]"=&f"(temp14), [temp15]"=&f"(temp15)
304 static void vector_fmul_reverse_mips(float *dst, const float *src0, const float *src1, int len){
306 float temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
309 for(i=0; i<(len>>2); i++)
311 /* loop unrolled 4 times */
313 "lwc1 %[temp0], 0(%[src0]) \n\t"
314 "lwc1 %[temp1], 0(%[src1]) \n\t"
315 "lwc1 %[temp2], 4(%[src0]) \n\t"
316 "lwc1 %[temp3], -4(%[src1]) \n\t"
317 "lwc1 %[temp4], 8(%[src0]) \n\t"
318 "lwc1 %[temp5], -8(%[src1]) \n\t"
319 "lwc1 %[temp6], 12(%[src0]) \n\t"
320 "lwc1 %[temp7], -12(%[src1]) \n\t"
321 "mul.s %[temp0], %[temp1], %[temp0] \n\t"
322 "mul.s %[temp2], %[temp3], %[temp2] \n\t"
323 "mul.s %[temp4], %[temp5], %[temp4] \n\t"
324 "mul.s %[temp6], %[temp7], %[temp6] \n\t"
325 PTR_ADDIU "%[src0], %[src0], 16 \n\t"
326 PTR_ADDIU "%[src1], %[src1], -16 \n\t"
327 PTR_ADDIU "%[dst], %[dst], 16 \n\t"
328 "swc1 %[temp0], -16(%[dst]) \n\t"
329 "swc1 %[temp2], -12(%[dst]) \n\t"
330 "swc1 %[temp4], -8(%[dst]) \n\t"
331 "swc1 %[temp6], -4(%[dst]) \n\t"
333 : [dst]"+r"(dst), [src0]"+r"(src0), [src1]"+r"(src1),
334 [temp0]"=&f"(temp0), [temp1]"=&f"(temp1),[temp2]"=&f"(temp2),
335 [temp3]"=&f"(temp3), [temp4]"=&f"(temp4), [temp5]"=&f"(temp5),
336 [temp6]"=&f"(temp6), [temp7]"=&f"(temp7)
342 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */
344 void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp) {
345 #if HAVE_INLINE_ASM && HAVE_MIPSFPU
346 fdsp->vector_fmul = vector_fmul_mips;
347 fdsp->vector_fmul_scalar = vector_fmul_scalar_mips;
348 fdsp->vector_fmul_window = vector_fmul_window_mips;
349 fdsp->butterflies_float = butterflies_float_mips;
350 fdsp->vector_fmul_reverse = vector_fmul_reverse_mips;
351 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */