1/*
2 * Copyright (c) 2015 Tiancheng "Timothy" Gu
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#include "checkasm.h"
23#include "libavcodec/pixblockdsp.h"
24#include "libavutil/common.h"
25#include "libavutil/internal.h"
26#include "libavutil/intreadwrite.h"
27#include "libavutil/mem_internal.h"
28
29#define BUF_UNITS 8
30#define BUF_SIZE (BUF_UNITS * 128 + 8 * BUF_UNITS)
31
32#define randomize_buffers()                 \
33    do {                                    \
34        int i;                              \
35        for (i = 0; i < BUF_SIZE; i += 4) { \
36            uint32_t r = rnd();             \
37            AV_WN32A(src10 + i, r);         \
38            AV_WN32A(src11 + i, r);         \
39            r = rnd();                      \
40            AV_WN32A(src20 + i, r);         \
41            AV_WN32A(src21 + i, r);         \
42            r = rnd();                      \
43            AV_WN32A(dst0_ + i, r);         \
44            AV_WN32A(dst1_ + i, r);         \
45        }                                   \
46    } while (0)
47
48#define check_get_pixels(type, aligned)                                                    \
49    do {                                                                                   \
50        int i;                                                                             \
51        declare_func_emms(AV_CPU_FLAG_MMX, void, int16_t *block, const uint8_t *pixels, ptrdiff_t line_size);    \
52                                                                                           \
53        for (i = 0; i < BUF_UNITS; i++) {                                              \
54            int src_offset = i * 64 * sizeof(type) + (aligned ? 8 : 1) * i;                \
55            int dst_offset = i * 64; /* dst must be aligned */                             \
56            randomize_buffers();                                                           \
57            call_ref(dst0 + dst_offset, src10 + src_offset, 8);                            \
58            call_new(dst1 + dst_offset, src11 + src_offset, 8);                            \
59            if (memcmp(src10, src11, BUF_SIZE)|| memcmp(dst0, dst1, BUF_SIZE)) \
60                fail();                                                                    \
61            bench_new(dst1 + dst_offset, src11 + src_offset, 8);                           \
62        }                                                                                  \
63    } while (0)
64
65#define check_diff_pixels(type, aligned)                                                   \
66    do {                                                                                   \
67        int i;                                                                             \
68        declare_func_emms(AV_CPU_FLAG_MMX, void, int16_t *av_restrict block, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride); \
69                                                                                           \
70        for (i = 0; i < BUF_UNITS; i++) {                                              \
71            int src_offset = i * 64 * sizeof(type) + (aligned ? 8 : 1) * i;                \
72            int dst_offset = i * 64; /* dst must be aligned */                             \
73            randomize_buffers();                                                           \
74            call_ref(dst0 + dst_offset, src10 + src_offset, src20 + src_offset, 8);        \
75            call_new(dst1 + dst_offset, src11 + src_offset, src21 + src_offset, 8);        \
76            if (memcmp(src10, src11, BUF_SIZE) || memcmp(src20, src21, BUF_SIZE) || memcmp(dst0, dst1, BUF_SIZE)) \
77                fail();                                                                    \
78            bench_new(dst1 + dst_offset, src11 + src_offset, src21 + src_offset, 8);       \
79        }                                                                                  \
80    } while (0)
81
82void checkasm_check_pixblockdsp(void)
83{
84    LOCAL_ALIGNED_16(uint8_t, src10, [BUF_SIZE]);
85    LOCAL_ALIGNED_16(uint8_t, src11, [BUF_SIZE]);
86    LOCAL_ALIGNED_16(uint8_t, src20, [BUF_SIZE]);
87    LOCAL_ALIGNED_16(uint8_t, src21, [BUF_SIZE]);
88    LOCAL_ALIGNED_16(uint8_t, dst0_, [BUF_SIZE]);
89    LOCAL_ALIGNED_16(uint8_t, dst1_, [BUF_SIZE]);
90    uint16_t *dst0 = (uint16_t *)dst0_;
91    uint16_t *dst1 = (uint16_t *)dst1_;
92    PixblockDSPContext h;
93    AVCodecContext avctx = {
94        .bits_per_raw_sample = 8,
95    };
96
97    ff_pixblockdsp_init(&h, &avctx);
98
99    if (check_func(h.get_pixels, "get_pixels"))
100        check_get_pixels(uint8_t, 1);
101    if (check_func(h.get_pixels_unaligned, "get_pixels_unaligned"))
102        check_get_pixels(uint8_t, 0);
103
104    report("get_pixels");
105
106    if (check_func(h.diff_pixels, "diff_pixels"))
107        check_diff_pixels(uint8_t, 1);
108    if (check_func(h.diff_pixels_unaligned, "diff_pixels_unaligned"))
109        check_diff_pixels(uint8_t, 0);
110
111    report("diff_pixels");
112}
113