1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #include <math.h>
20 #include <string.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23
24 #include "libavcodec/audiodsp.h"
25
26 #include "libavutil/common.h"
27 #include "libavutil/intreadwrite.h"
28
29 #include "checkasm.h"
30
31 #define MAX_SIZE (32 * 128)
32
33 #define randomize_float(buf, len) \
34 do { \
35 int i; \
36 for (i = 0; i < len; i++) { \
37 float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f; \
38 buf[i] = f; \
39 } \
40 } while (0)
41
42 #define randomize_int(buf, len, size, bits) \
43 do { \
44 int i; \
45 for (i = 0; i < len; i++) { \
46 uint ## size ## _t r = rnd() & ((1LL << bits) - 1); \
47 AV_WN ## size ## A(buf + i, -(1LL << (bits - 1)) + r); \
48 } \
49 } while (0)
50
checkasm_check_audiodsp(void)51 void checkasm_check_audiodsp(void)
52 {
53 AudioDSPContext adsp;
54
55 ff_audiodsp_init(&adsp);
56
57 if (check_func(adsp.scalarproduct_int16, "audiodsp.scalarproduct_int16")) {
58 LOCAL_ALIGNED(32, int16_t, v1, [MAX_SIZE]);
59 LOCAL_ALIGNED(32, int16_t, v2, [MAX_SIZE]);
60 unsigned int len_bits_minus4, v1_bits, v2_bits, len;
61 int32_t res0, res1;
62
63 declare_func_emms(AV_CPU_FLAG_MMX, int32_t, const int16_t *v1, const int16_t *v2, int len);
64
65 // generate random 5-12bit vector length
66 len_bits_minus4 = rnd() % 8;
67 len = rnd() & ((1 << len_bits_minus4) - 1);
68 len = 16 * FFMAX(len, 1);
69
70 // generate the bit counts for each of the vectors such that the result
71 // fits into int32
72 v1_bits = 1 + rnd() % 15;
73 v2_bits = FFMIN(32 - (len_bits_minus4 + 4) - v1_bits - 1, 15);
74
75 randomize_int(v1, MAX_SIZE, 16, v1_bits + 1);
76 randomize_int(v2, MAX_SIZE, 16, v2_bits + 1);
77
78 res0 = call_ref(v1, v2, len);
79 res1 = call_new(v1, v2, len);
80 if (res0 != res1)
81 fail();
82 bench_new(v1, v2, MAX_SIZE);
83 }
84
85 if (check_func(adsp.vector_clip_int32, "audiodsp.vector_clip_int32")) {
86 LOCAL_ALIGNED(32, int32_t, src, [MAX_SIZE]);
87 LOCAL_ALIGNED(32, int32_t, dst0, [MAX_SIZE]);
88 LOCAL_ALIGNED(32, int32_t, dst1, [MAX_SIZE]);
89 int32_t val1, val2, min, max;
90 int len;
91
92 declare_func_emms(AV_CPU_FLAG_MMX, void, int32_t *dst, const int32_t *src,
93 int32_t min, int32_t max, unsigned int len);
94
95 val1 = ((int32_t)rnd());
96 val1 = FFSIGN(val1) * (val1 & ((1 << 24) - 1));
97 val2 = ((int32_t)rnd());
98 val2 = FFSIGN(val2) * (val2 & ((1 << 24) - 1));
99
100 min = FFMIN(val1, val2);
101 max = FFMAX(val1, val2);
102
103 randomize_int(src, MAX_SIZE, 32, 32);
104
105 len = rnd() % 128;
106 len = 32 * FFMAX(len, 1);
107
108 call_ref(dst0, src, min, max, len);
109 call_new(dst1, src, min, max, len);
110 if (memcmp(dst0, dst1, len * sizeof(*dst0)))
111 fail();
112 bench_new(dst1, src, min, max, MAX_SIZE);
113 }
114
115 if (check_func(adsp.vector_clipf, "audiodsp.vector_clipf")) {
116 LOCAL_ALIGNED(32, float, src, [MAX_SIZE]);
117 LOCAL_ALIGNED(32, float, dst0, [MAX_SIZE]);
118 LOCAL_ALIGNED(32, float, dst1, [MAX_SIZE]);
119 float val1, val2, min, max;
120 int i, len;
121
122 declare_func_emms(AV_CPU_FLAG_MMX, void, float *dst, const float *src,
123 int len, float min, float max);
124
125 val1 = (float)rnd() / (UINT_MAX >> 1) - 1.0f;
126 val2 = (float)rnd() / (UINT_MAX >> 1) - 1.0f;
127
128 min = FFMIN(val1, val2);
129 max = FFMAX(val1, val2);
130
131 randomize_float(src, MAX_SIZE);
132
133 len = rnd() % 128;
134 len = 16 * FFMAX(len, 1);
135
136 call_ref(dst0, src, len, min, max);
137 call_new(dst1, src, len, min, max);
138 for (i = 0; i < len; i++) {
139 if (!float_near_ulp_array(dst0, dst1, 3, len))
140 fail();
141 }
142 bench_new(dst1, src, MAX_SIZE, min, max);
143 }
144
145 report("audiodsp");
146 }
147