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
25 #include "libavcodec/hevcdsp.h"
26
27 #include "checkasm.h"
28
29 #define randomize_buffers(buf, size) \
30 do { \
31 int j; \
32 for (j = 0; j < size; j++) { \
33 int16_t r = rnd(); \
34 AV_WN16A(buf + j, r); \
35 } \
36 } while (0)
37
check_idct(HEVCDSPContext h,int bit_depth)38 static void check_idct(HEVCDSPContext h, int bit_depth)
39 {
40 int i;
41 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
42 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
43
44 for (i = 2; i <= 5; i++) {
45 int block_size = 1 << i;
46 int size = block_size * block_size;
47 int col_limit = block_size;
48 declare_func(void, int16_t *coeffs, int col_limit);
49
50 randomize_buffers(coeffs0, size);
51 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
52 if (check_func(h.idct[i - 2], "hevc_idct_%dx%d_%d", block_size, block_size, bit_depth)) {
53 call_ref(coeffs0, col_limit);
54 call_new(coeffs1, col_limit);
55 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
56 fail();
57 bench_new(coeffs1, col_limit);
58 }
59 }
60 }
61
check_idct_dc(HEVCDSPContext h,int bit_depth)62 static void check_idct_dc(HEVCDSPContext h, int bit_depth)
63 {
64 int i;
65 LOCAL_ALIGNED(32, int16_t, coeffs0, [32 * 32]);
66 LOCAL_ALIGNED(32, int16_t, coeffs1, [32 * 32]);
67
68 for (i = 2; i <= 5; i++) {
69 int block_size = 1 << i;
70 int size = block_size * block_size;
71 declare_func_emms(AV_CPU_FLAG_MMXEXT, void, int16_t *coeffs);
72
73 randomize_buffers(coeffs0, size);
74 memcpy(coeffs1, coeffs0, sizeof(*coeffs0) * size);
75
76 if (check_func(h.idct_dc[i - 2], "hevc_idct_%dx%d_dc_%d", block_size, block_size, bit_depth)) {
77 call_ref(coeffs0);
78 call_new(coeffs1);
79 if (memcmp(coeffs0, coeffs1, sizeof(*coeffs0) * size))
80 fail();
81 bench_new(coeffs1);
82 }
83 }
84 }
85
checkasm_check_hevc_idct(void)86 void checkasm_check_hevc_idct(void)
87 {
88 int bit_depth;
89
90 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
91 HEVCDSPContext h;
92
93 ff_hevc_dsp_init(&h, bit_depth);
94 check_idct_dc(h, bit_depth);
95 }
96 report("idct_dc");
97
98 for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
99 HEVCDSPContext h;
100
101 ff_hevc_dsp_init(&h, bit_depth);
102 check_idct(h, bit_depth);
103 }
104 report("idct");
105 }
106