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
39static 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
63static 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
87void 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