1 /*
2 * Copyright (c) 2016 Alexandra Hájková
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include <string.h>
22
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/mem_internal.h"
25
26 #include "libavcodec/hevcdsp.h"
27
28 #include "checkasm.h"
29
30 #define randomize_buffers(buf, size) \
31 do { \
32 int j; \
33 for (j = 0; j < size; j++) { \
34 int16_t r = rnd(); \
35 AV_WN16A(buf + j, r); \
36 } \
37 } while (0)
38
check_idct(HEVCDSPContext h,int bit_depth)39 static void check_idct(HEVCDSPContext h, int bit_depth)
40 {
41 int i;
42 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
43 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
44
45 for (i = 2; i <= 5; i++) {
46 int block_size = 1 << i;
47 int size = block_size * block_size;
48 int col_limit = block_size;
49 declare_func(void, int16_t *coeffs, int col_limit);
50
51 randomize_buffers(coeffs0, size);
52 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
53 if (check_func(h.idct[i - 2], "hevc_idct_%dx%d_%d", block_size, block_size, bit_depth)) {
54 call_ref(coeffs0, col_limit);
55 call_new(coeffs1, col_limit);
56 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
57 fail();
58 bench_new(coeffs1, col_limit);
59 }
60 }
61 }
62
check_idct_dc(HEVCDSPContext h,int bit_depth)63 static void check_idct_dc(HEVCDSPContext h, int bit_depth)
64 {
65 int i;
66 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
67 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
68
69 for (i = 2; i <= 5; i++) {
70 int block_size = 1 << i;
71 int size = block_size * block_size;
72 declare_func_emms(AV_CPU_FLAG_MMXEXT, void, int16_t *coeffs);
73
74 randomize_buffers(coeffs0, size);
75 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
76
77 if (check_func(h.idct_dc[i - 2], "hevc_idct_%dx%d_dc_%d", block_size, block_size, bit_depth)) {
78 call_ref(coeffs0);
79 call_new(coeffs1);
80 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
81 fail();
82 bench_new(coeffs1);
83 }
84 }
85 }
86
checkasm_check_hevc_idct(void)87 void checkasm_check_hevc_idct(void)
88 {
89 int bit_depth;
90
91 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
92 HEVCDSPContext h;
93
94 ff_hevc_dsp_init(&h, bit_depth);
95 check_idct_dc(h, bit_depth);
96 }
97 report("idct_dc");
98
99 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
100 HEVCDSPContext h;
101
102 ff_hevc_dsp_init(&h, bit_depth);
103 check_idct(h, bit_depth);
104 }
105 report("idct");
106 }
107