2 * This file is part of FFmpeg.
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.
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.
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.
24 #include "libavcodec/audiodsp.h"
26 #include "libavutil/common.h"
27 #include "libavutil/intreadwrite.h"
28 #include "libavutil/mem_internal.h"
32 #define MAX_SIZE (32 * 128)
34 #define randomize_float(buf, len) \
37 for (i = 0; i < len; i++) { \
38 float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f; \
43 #define randomize_int(buf, len, size, bits) \
46 for (i = 0; i < len; i++) { \
47 uint ## size ## _t r = rnd() & ((1LL << bits) - 1); \
48 AV_WN ## size ## A(buf + i, -(1LL << (bits - 1)) + r); \
52 void checkasm_check_audiodsp(void)
56 ff_audiodsp_init(&adsp);
58 if (check_func(adsp.scalarproduct_int16, "audiodsp.scalarproduct_int16")) {
59 LOCAL_ALIGNED(32, int16_t, v1, [MAX_SIZE]);
60 LOCAL_ALIGNED(32, int16_t, v2, [MAX_SIZE]);
61 unsigned int len_bits_minus4, v1_bits, v2_bits, len;
64 declare_func_emms(AV_CPU_FLAG_MMX, int32_t, const int16_t *v1, const int16_t *v2, int len);
66 // generate random 5-12bit vector length
67 len_bits_minus4 = rnd() % 8;
68 len = rnd() & ((1 << len_bits_minus4) - 1);
69 len = 16 * FFMAX(len, 1);
71 // generate the bit counts for each of the vectors such that the result
73 v1_bits = 1 + rnd() % 15;
74 v2_bits = FFMIN(32 - (len_bits_minus4 + 4) - v1_bits - 1, 15);
76 randomize_int(v1, MAX_SIZE, 16, v1_bits + 1);
77 randomize_int(v2, MAX_SIZE, 16, v2_bits + 1);
79 res0 = call_ref(v1, v2, len);
80 res1 = call_new(v1, v2, len);
83 bench_new(v1, v2, MAX_SIZE);
86 if (check_func(adsp.vector_clip_int32, "audiodsp.vector_clip_int32")) {
87 LOCAL_ALIGNED(32, int32_t, src, [MAX_SIZE]);
88 LOCAL_ALIGNED(32, int32_t, dst0, [MAX_SIZE]);
89 LOCAL_ALIGNED(32, int32_t, dst1, [MAX_SIZE]);
90 int32_t val1, val2, min, max;
93 declare_func_emms(AV_CPU_FLAG_MMX, void, int32_t *dst, const int32_t *src,
94 int32_t min, int32_t max, unsigned int len);
96 val1 = ((int32_t)rnd());
97 val1 = FFSIGN(val1) * (val1 & ((1 << 24) - 1));
98 val2 = ((int32_t)rnd());
99 val2 = FFSIGN(val2) * (val2 & ((1 << 24) - 1));
101 min = FFMIN(val1, val2);
102 max = FFMAX(val1, val2);
104 randomize_int(src, MAX_SIZE, 32, 32);
107 len = 32 * FFMAX(len, 1);
109 call_ref(dst0, src, min, max, len);
110 call_new(dst1, src, min, max, len);
111 if (memcmp(dst0, dst1, len * sizeof(*dst0)))
113 bench_new(dst1, src, min, max, MAX_SIZE);
116 if (check_func(adsp.vector_clipf, "audiodsp.vector_clipf")) {
117 LOCAL_ALIGNED(32, float, src, [MAX_SIZE]);
118 LOCAL_ALIGNED(32, float, dst0, [MAX_SIZE]);
119 LOCAL_ALIGNED(32, float, dst1, [MAX_SIZE]);
120 float val1, val2, min, max;
123 declare_func_emms(AV_CPU_FLAG_MMX, void, float *dst, const float *src,
124 int len, float min, float max);
126 val1 = (float)rnd() / (UINT_MAX >> 1) - 1.0f;
127 val2 = (float)rnd() / (UINT_MAX >> 1) - 1.0f;
129 min = FFMIN(val1, val2);
130 max = FFMAX(val1, val2);
132 randomize_float(src, MAX_SIZE);
135 len = 16 * FFMAX(len, 1);
137 call_ref(dst0, src, len, min, max);
138 call_new(dst1, src, len, min, max);
139 for (i = 0; i < len; i++) {
140 if (!float_near_ulp_array(dst0, dst1, 3, len))
143 bench_new(dst1, src, MAX_SIZE, min, max);