2 * Copyright 2005 Balatoni Denes
3 * Copyright 2006 Loren Merritt
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "attributes.h"
24 #include "float_dsp.h"
27 static void vector_fmul_c(float *dst
, const float *src0
, const float *src1
,
31 for (i
= 0; i
< len
; i
++)
32 dst
[i
] = src0
[i
] * src1
[i
];
35 static void vector_fmac_scalar_c(float *dst
, const float *src
, float mul
,
39 for (i
= 0; i
< len
; i
++)
40 dst
[i
] += src
[i
] * mul
;
43 static void vector_fmul_scalar_c(float *dst
, const float *src
, float mul
,
47 for (i
= 0; i
< len
; i
++)
48 dst
[i
] = src
[i
] * mul
;
51 static void vector_dmul_scalar_c(double *dst
, const double *src
, double mul
,
55 for (i
= 0; i
< len
; i
++)
56 dst
[i
] = src
[i
] * mul
;
59 static void vector_fmul_window_c(float *dst
, const float *src0
,
60 const float *src1
, const float *win
, int len
)
68 for (i
= -len
, j
= len
- 1; i
< 0; i
++, j
--) {
73 dst
[i
] = s0
* wj
- s1
* wi
;
74 dst
[j
] = s0
* wi
+ s1
* wj
;
78 static void vector_fmul_add_c(float *dst
, const float *src0
, const float *src1
,
79 const float *src2
, int len
){
82 for (i
= 0; i
< len
; i
++)
83 dst
[i
] = src0
[i
] * src1
[i
] + src2
[i
];
86 static void vector_fmul_reverse_c(float *dst
, const float *src0
,
87 const float *src1
, int len
)
92 for (i
= 0; i
< len
; i
++)
93 dst
[i
] = src0
[i
] * src1
[-i
];
96 static void butterflies_float_c(float *av_restrict v1
, float *av_restrict v2
,
101 for (i
= 0; i
< len
; i
++) {
102 float t
= v1
[i
] - v2
[i
];
108 float avpriv_scalarproduct_float_c(const float *v1
, const float *v2
, int len
)
113 for (i
= 0; i
< len
; i
++)
119 av_cold
void avpriv_float_dsp_init(AVFloatDSPContext
*fdsp
, int bit_exact
)
121 fdsp
->vector_fmul
= vector_fmul_c
;
122 fdsp
->vector_fmac_scalar
= vector_fmac_scalar_c
;
123 fdsp
->vector_fmul_scalar
= vector_fmul_scalar_c
;
124 fdsp
->vector_dmul_scalar
= vector_dmul_scalar_c
;
125 fdsp
->vector_fmul_window
= vector_fmul_window_c
;
126 fdsp
->vector_fmul_add
= vector_fmul_add_c
;
127 fdsp
->vector_fmul_reverse
= vector_fmul_reverse_c
;
128 fdsp
->butterflies_float
= butterflies_float_c
;
129 fdsp
->scalarproduct_float
= avpriv_scalarproduct_float_c
;
132 ff_float_dsp_init_aarch64(fdsp
);
134 ff_float_dsp_init_arm(fdsp
);
136 ff_float_dsp_init_ppc(fdsp
, bit_exact
);
138 ff_float_dsp_init_x86(fdsp
);
140 ff_float_dsp_init_mips(fdsp
);
143 av_cold AVFloatDSPContext
*avpriv_float_dsp_alloc(int bit_exact
)
145 AVFloatDSPContext
*ret
= av_mallocz(sizeof(AVFloatDSPContext
));
147 avpriv_float_dsp_init(ret
, bit_exact
);
160 #include <unistd.h> /* for getopt */
163 #include "compat/getopt.c"
168 #include "internal.h"
171 #include "random_seed.h"
175 static void fill_float_array(AVLFG
*lfg
, float *a
, int len
)
178 double bmg
[2], stddev
= 10.0, mean
= 0.0;
180 for (i
= 0; i
< len
; i
+= 2) {
181 av_bmg_get(lfg
, bmg
);
182 a
[i
] = bmg
[0] * stddev
+ mean
;
183 a
[i
+ 1] = bmg
[1] * stddev
+ mean
;
186 static int compare_floats(const float *a
, const float *b
, int len
,
190 for (i
= 0; i
< len
; i
++) {
191 if (fabsf(a
[i
] - b
[i
]) > max_diff
) {
192 av_log(NULL
, AV_LOG_ERROR
, "%d: %- .12f - %- .12f = % .12g\n",
193 i
, a
[i
], b
[i
], a
[i
] - b
[i
]);
200 static void fill_double_array(AVLFG
*lfg
, double *a
, int len
)
203 double bmg
[2], stddev
= 10.0, mean
= 0.0;
205 for (i
= 0; i
< len
; i
+= 2) {
206 av_bmg_get(lfg
, bmg
);
207 a
[i
] = bmg
[0] * stddev
+ mean
;
208 a
[i
+ 1] = bmg
[1] * stddev
+ mean
;
212 static int compare_doubles(const double *a
, const double *b
, int len
,
217 for (i
= 0; i
< len
; i
++) {
218 if (fabs(a
[i
] - b
[i
]) > max_diff
) {
219 av_log(NULL
, AV_LOG_ERROR
, "%d: %- .12f - %- .12f = % .12g\n",
220 i
, a
[i
], b
[i
], a
[i
] - b
[i
]);
227 static int test_vector_fmul(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
228 const float *v1
, const float *v2
)
230 LOCAL_ALIGNED(32, float, cdst
, [LEN
]);
231 LOCAL_ALIGNED(32, float, odst
, [LEN
]);
234 cdsp
->vector_fmul(cdst
, v1
, v2
, LEN
);
235 fdsp
->vector_fmul(odst
, v1
, v2
, LEN
);
237 if (ret
= compare_floats(cdst
, odst
, LEN
, FLT_EPSILON
))
238 av_log(NULL
, AV_LOG_ERROR
, "vector_fmul failed\n");
243 #define ARBITRARY_FMAC_SCALAR_CONST 0.005
244 static int test_vector_fmac_scalar(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
245 const float *v1
, const float *src0
, float scale
)
247 LOCAL_ALIGNED(32, float, cdst
, [LEN
]);
248 LOCAL_ALIGNED(32, float, odst
, [LEN
]);
251 memcpy(cdst
, v1
, LEN
* sizeof(*v1
));
252 memcpy(odst
, v1
, LEN
* sizeof(*v1
));
254 cdsp
->vector_fmac_scalar(cdst
, src0
, scale
, LEN
);
255 fdsp
->vector_fmac_scalar(odst
, src0
, scale
, LEN
);
257 if (ret
= compare_floats(cdst
, odst
, LEN
, ARBITRARY_FMAC_SCALAR_CONST
))
258 av_log(NULL
, AV_LOG_ERROR
, "vector_fmac_scalar failed\n");
263 static int test_vector_fmul_scalar(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
264 const float *v1
, float scale
)
266 LOCAL_ALIGNED(32, float, cdst
, [LEN
]);
267 LOCAL_ALIGNED(32, float, odst
, [LEN
]);
270 cdsp
->vector_fmul_scalar(cdst
, v1
, scale
, LEN
);
271 fdsp
->vector_fmul_scalar(odst
, v1
, scale
, LEN
);
273 if (ret
= compare_floats(cdst
, odst
, LEN
, FLT_EPSILON
))
274 av_log(NULL
, AV_LOG_ERROR
, "vector_fmul_scalar failed\n");
279 static int test_vector_dmul_scalar(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
280 const double *v1
, double scale
)
282 LOCAL_ALIGNED(32, double, cdst
, [LEN
]);
283 LOCAL_ALIGNED(32, double, odst
, [LEN
]);
286 cdsp
->vector_dmul_scalar(cdst
, v1
, scale
, LEN
);
287 fdsp
->vector_dmul_scalar(odst
, v1
, scale
, LEN
);
289 if (ret
= compare_doubles(cdst
, odst
, LEN
, DBL_EPSILON
))
290 av_log(NULL
, AV_LOG_ERROR
, "vector_dmul_scalar failed\n");
295 #define ARBITRARY_FMUL_WINDOW_CONST 0.008
296 static int test_vector_fmul_window(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
297 const float *v1
, const float *v2
, const float *v3
)
299 LOCAL_ALIGNED(32, float, cdst
, [LEN
]);
300 LOCAL_ALIGNED(32, float, odst
, [LEN
]);
303 cdsp
->vector_fmul_window(cdst
, v1
, v2
, v3
, LEN
/ 2);
304 fdsp
->vector_fmul_window(odst
, v1
, v2
, v3
, LEN
/ 2);
306 if (ret
= compare_floats(cdst
, odst
, LEN
, ARBITRARY_FMUL_WINDOW_CONST
))
307 av_log(NULL
, AV_LOG_ERROR
, "vector_fmul_window failed\n");
312 #define ARBITRARY_FMUL_ADD_CONST 0.005
313 static int test_vector_fmul_add(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
314 const float *v1
, const float *v2
, const float *v3
)
316 LOCAL_ALIGNED(32, float, cdst
, [LEN
]);
317 LOCAL_ALIGNED(32, float, odst
, [LEN
]);
320 cdsp
->vector_fmul_add(cdst
, v1
, v2
, v3
, LEN
);
321 fdsp
->vector_fmul_add(odst
, v1
, v2
, v3
, LEN
);
323 if (ret
= compare_floats(cdst
, odst
, LEN
, ARBITRARY_FMUL_ADD_CONST
))
324 av_log(NULL
, AV_LOG_ERROR
, "vector_fmul_add failed\n");
329 static int test_vector_fmul_reverse(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
330 const float *v1
, const float *v2
)
332 LOCAL_ALIGNED(32, float, cdst
, [LEN
]);
333 LOCAL_ALIGNED(32, float, odst
, [LEN
]);
336 cdsp
->vector_fmul_reverse(cdst
, v1
, v2
, LEN
);
337 fdsp
->vector_fmul_reverse(odst
, v1
, v2
, LEN
);
339 if (ret
= compare_floats(cdst
, odst
, LEN
, FLT_EPSILON
))
340 av_log(NULL
, AV_LOG_ERROR
, "vector_fmul_reverse failed\n");
345 static int test_butterflies_float(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
346 const float *v1
, const float *v2
)
348 LOCAL_ALIGNED(32, float, cv1
, [LEN
]);
349 LOCAL_ALIGNED(32, float, cv2
, [LEN
]);
350 LOCAL_ALIGNED(32, float, ov1
, [LEN
]);
351 LOCAL_ALIGNED(32, float, ov2
, [LEN
]);
354 memcpy(cv1
, v1
, LEN
* sizeof(*v1
));
355 memcpy(cv2
, v2
, LEN
* sizeof(*v2
));
356 memcpy(ov1
, v1
, LEN
* sizeof(*v1
));
357 memcpy(ov2
, v2
, LEN
* sizeof(*v2
));
359 cdsp
->butterflies_float(cv1
, cv2
, LEN
);
360 fdsp
->butterflies_float(ov1
, ov2
, LEN
);
362 if ((ret
= compare_floats(cv1
, ov1
, LEN
, FLT_EPSILON
)) ||
363 (ret
= compare_floats(cv2
, ov2
, LEN
, FLT_EPSILON
)))
364 av_log(NULL
, AV_LOG_ERROR
, "butterflies_float failed\n");
369 #define ARBITRARY_SCALARPRODUCT_CONST 0.2
370 static int test_scalarproduct_float(AVFloatDSPContext
*fdsp
, AVFloatDSPContext
*cdsp
,
371 const float *v1
, const float *v2
)
376 cprod
= cdsp
->scalarproduct_float(v1
, v2
, LEN
);
377 oprod
= fdsp
->scalarproduct_float(v1
, v2
, LEN
);
379 if (ret
= compare_floats(&cprod
, &oprod
, 1, ARBITRARY_SCALARPRODUCT_CONST
))
380 av_log(NULL
, AV_LOG_ERROR
, "scalarproduct_float failed\n");
385 int main(int argc
, char **argv
)
387 int ret
= 0, seeded
= 0;
389 AVFloatDSPContext fdsp
, cdsp
;
392 LOCAL_ALIGNED(32, float, src0
, [LEN
]);
393 LOCAL_ALIGNED(32, float, src1
, [LEN
]);
394 LOCAL_ALIGNED(32, float, src2
, [LEN
]);
395 LOCAL_ALIGNED(32, double, dbl_src0
, [LEN
]);
396 LOCAL_ALIGNED(32, double, dbl_src1
, [LEN
]);
399 int arg
= getopt(argc
, argv
, "s:c:");
404 seed
= strtoul(optarg
, NULL
, 10);
409 int cpuflags
= av_get_cpu_flags();
411 if (av_parse_cpu_caps(&cpuflags
, optarg
) < 0)
414 av_force_cpu_flags(cpuflags
);
420 seed
= av_get_random_seed();
422 av_log(NULL
, AV_LOG_INFO
, "float_dsp-test: %s %u\n", seeded
? "seed" : "random seed", seed
);
424 av_lfg_init(&lfg
, seed
);
426 fill_float_array(&lfg
, src0
, LEN
);
427 fill_float_array(&lfg
, src1
, LEN
);
428 fill_float_array(&lfg
, src2
, LEN
);
430 fill_double_array(&lfg
, dbl_src0
, LEN
);
431 fill_double_array(&lfg
, dbl_src1
, LEN
);
433 avpriv_float_dsp_init(&fdsp
, 1);
434 av_set_cpu_flags_mask(0);
435 avpriv_float_dsp_init(&cdsp
, 1);
437 if (test_vector_fmul(&fdsp
, &cdsp
, src0
, src1
))
439 if (test_vector_fmac_scalar(&fdsp
, &cdsp
, src2
, src0
, src1
[0]))
441 if (test_vector_fmul_scalar(&fdsp
, &cdsp
, src0
, src1
[0]))
443 if (test_vector_fmul_window(&fdsp
, &cdsp
, src0
, src1
, src2
))
445 if (test_vector_fmul_add(&fdsp
, &cdsp
, src0
, src1
, src2
))
447 if (test_vector_fmul_reverse(&fdsp
, &cdsp
, src0
, src1
))
449 if (test_butterflies_float(&fdsp
, &cdsp
, src0
, src1
))
451 if (test_scalarproduct_float(&fdsp
, &cdsp
, src0
, src1
))
453 if (test_vector_dmul_scalar(&fdsp
, &cdsp
, dbl_src0
, dbl_src1
[0]))