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/common.h"
24#include "libavutil/intreadwrite.h"
25#include "libavutil/mem_internal.h"
26
27#include "libavcodec/lossless_videoencdsp.h"
28
29#include "checkasm.h"
30
31#define randomize_buffers(buf, size)      \
32    do {                                  \
33        int j;                            \
34        for (j = 0; j < size; j+=4)       \
35            AV_WN32(buf + j, rnd());      \
36    } while (0)
37
38static const struct {uint8_t w, h, s;} planes[] = {
39    {16,16,16}, {21,23,25}, {32,17,48}, {15,128,16}, {128,127,128}
40};
41
42#define MAX_STRIDE 128
43#define MAX_HEIGHT 127
44
45static void check_diff_bytes(LLVidEncDSPContext *c)
46{
47    int i;
48    LOCAL_ALIGNED_32(uint8_t, dst0, [MAX_STRIDE]);
49    LOCAL_ALIGNED_32(uint8_t, dst1, [MAX_STRIDE]);
50    LOCAL_ALIGNED_32(uint8_t, src0, [MAX_STRIDE]);
51    LOCAL_ALIGNED_32(uint8_t, src1, [MAX_STRIDE]);
52    LOCAL_ALIGNED_32(uint8_t, src2, [MAX_STRIDE]);
53    LOCAL_ALIGNED_32(uint8_t, src3, [MAX_STRIDE]);
54
55    declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const uint8_t *src1,
56                      const uint8_t *src2, intptr_t w);
57
58    memset(dst0, 0, MAX_STRIDE);
59    memset(dst1, 0, MAX_STRIDE);
60    randomize_buffers(src0, MAX_STRIDE);
61    memcpy(src1, src0, MAX_STRIDE);
62    randomize_buffers(src2, MAX_STRIDE);
63    memcpy(src3, src2, MAX_STRIDE);
64
65    if (check_func(c->diff_bytes, "diff_bytes")) {
66        for (i = 0; i < 5; i ++) {
67            call_ref(dst0, src0, src2, planes[i].w);
68            call_new(dst1, src1, src3, planes[i].w);
69            if (memcmp(dst0, dst1, planes[i].w))
70                fail();
71        }
72        bench_new(dst1, src0, src2, planes[4].w);
73    }
74}
75
76static void check_sub_left_pred(LLVidEncDSPContext *c)
77{
78    int i;
79    LOCAL_ALIGNED_32(uint8_t, dst0, [MAX_STRIDE * MAX_HEIGHT]);
80    LOCAL_ALIGNED_32(uint8_t, dst1, [MAX_STRIDE * MAX_HEIGHT]);
81    LOCAL_ALIGNED_32(uint8_t, src0, [MAX_STRIDE * MAX_HEIGHT]);
82    LOCAL_ALIGNED_32(uint8_t, src1, [MAX_STRIDE * MAX_HEIGHT]);
83
84    declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const uint8_t *src,
85                      ptrdiff_t stride, ptrdiff_t width, int height);
86
87    memset(dst0, 0, MAX_STRIDE * MAX_HEIGHT);
88    memset(dst1, 0, MAX_STRIDE * MAX_HEIGHT);
89    randomize_buffers(src0, MAX_STRIDE * MAX_HEIGHT);
90    memcpy(src1, src0, MAX_STRIDE * MAX_HEIGHT);
91
92    if (check_func(c->sub_left_predict, "sub_left_predict")) {
93        for (i = 0; i < 5; i ++) {
94            call_ref(dst0, src0, planes[i].s, planes[i].w, planes[i].h);
95            call_new(dst1, src1, planes[i].s, planes[i].w, planes[i].h);
96            if (memcmp(dst0, dst1, planes[i].w * planes[i].h))
97                fail();
98            break;
99        }
100        bench_new(dst1, src0, planes[4].s, planes[4].w, planes[4].h);
101    }
102}
103
104void checkasm_check_llviddspenc(void)
105{
106    LLVidEncDSPContext c;
107    ff_llvidencdsp_init(&c);
108
109    check_diff_bytes(&c);
110    report("diff_bytes");
111
112    check_sub_left_pred(&c);
113    report("sub_left_predict");
114}
115