1/*
2 * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include <stdio.h>
22#include <string.h>              /* for memset() */
23#include <stdlib.h>
24#include <inttypes.h>
25
26#include "swscale.h"
27#include "rgb2rgb.h"
28#include "libavutil/mem.h"
29
30#define SIZE    1000
31#define srcByte 0x55
32#define dstByte 0xBB
33
34#define FUNC(s, d, n) { s, d, #n, n }
35
36int main(int argc, char **argv)
37{
38    int i, funcNum;
39    uint8_t *srcBuffer = av_malloc(SIZE);
40    uint8_t *dstBuffer = av_malloc(SIZE);
41    int failedNum      = 0;
42    int passedNum      = 0;
43
44    if (!srcBuffer || !dstBuffer)
45        return -1;
46
47    av_log(NULL, AV_LOG_INFO, "memory corruption test ...\n");
48    sws_rgb2rgb_init();
49
50    for (funcNum = 0; ; funcNum++) {
51        struct func_info_s {
52            int src_bpp;
53            int dst_bpp;
54            const char *name;
55            void (*func)(const uint8_t *src, uint8_t *dst, int src_size);
56        } func_info[] = {
57            FUNC(2, 2, rgb12to15),
58            FUNC(2, 2, rgb15to16),
59            FUNC(2, 3, rgb15to24),
60            FUNC(2, 4, rgb15to32),
61            FUNC(2, 3, rgb16to24),
62            FUNC(2, 4, rgb16to32),
63            FUNC(3, 2, rgb24to15),
64            FUNC(3, 2, rgb24to16),
65            FUNC(3, 4, rgb24to32),
66            FUNC(4, 2, rgb32to15),
67            FUNC(4, 2, rgb32to16),
68            FUNC(4, 3, rgb32to24),
69            FUNC(2, 2, rgb16to15),
70            FUNC(2, 2, rgb12tobgr12),
71            FUNC(2, 2, rgb15tobgr15),
72            FUNC(2, 2, rgb15tobgr16),
73            FUNC(2, 3, rgb15tobgr24),
74            FUNC(2, 4, rgb15tobgr32),
75            FUNC(2, 2, rgb16tobgr15),
76            FUNC(2, 2, rgb16tobgr16),
77            FUNC(2, 3, rgb16tobgr24),
78            FUNC(2, 4, rgb16tobgr32),
79            FUNC(3, 2, rgb24tobgr15),
80            FUNC(3, 2, rgb24tobgr16),
81            FUNC(3, 3, rgb24tobgr24),
82            FUNC(3, 4, rgb24tobgr32),
83            FUNC(4, 2, rgb32tobgr15),
84            FUNC(4, 2, rgb32tobgr16),
85            FUNC(4, 3, rgb32tobgr24),
86            FUNC(4, 4, shuffle_bytes_2103), /* rgb32tobgr32 */
87            FUNC(6, 6, rgb48tobgr48_nobswap),
88            FUNC(6, 6, rgb48tobgr48_bswap),
89            FUNC(8, 6, rgb64to48_nobswap),
90            FUNC(8, 6, rgb64to48_bswap),
91            FUNC(8, 6, rgb64tobgr48_nobswap),
92            FUNC(8, 6, rgb64tobgr48_bswap),
93            FUNC(0, 0, NULL)
94        };
95        int width;
96        int failed = 0;
97        int srcBpp = 0;
98        int dstBpp = 0;
99
100        if (!func_info[funcNum].func)
101            break;
102
103        av_log(NULL, AV_LOG_INFO, ".");
104        memset(srcBuffer, srcByte, SIZE);
105
106        for (width = 63; width > 0; width--) {
107            int dstOffset;
108            for (dstOffset = 128; dstOffset < 196; dstOffset += 4) {
109                int srcOffset;
110                memset(dstBuffer, dstByte, SIZE);
111
112                for (srcOffset = 128; srcOffset < 196; srcOffset += 4) {
113                    uint8_t *src     = srcBuffer + srcOffset;
114                    uint8_t *dst     = dstBuffer + dstOffset;
115                    const char *name = NULL;
116
117                    // don't fill the screen with shit ...
118                    if (failed)
119                        break;
120
121                    srcBpp = func_info[funcNum].src_bpp;
122                    dstBpp = func_info[funcNum].dst_bpp;
123                    name   = func_info[funcNum].name;
124
125                    func_info[funcNum].func(src, dst, width * srcBpp);
126
127                    if (!srcBpp)
128                        break;
129
130                    for (i = 0; i < SIZE; i++) {
131                        if (srcBuffer[i] != srcByte) {
132                            av_log(NULL, AV_LOG_INFO,
133                                   "src damaged at %d w:%d src:%d dst:%d %s\n",
134                                   i, width, srcOffset, dstOffset, name);
135                            failed = 1;
136                            break;
137                        }
138                    }
139                    for (i = 0; i < dstOffset; i++) {
140                        if (dstBuffer[i] != dstByte) {
141                            av_log(NULL, AV_LOG_INFO,
142                                   "dst damaged at %d w:%d src:%d dst:%d %s\n",
143                                   i, width, srcOffset, dstOffset, name);
144                            failed = 1;
145                            break;
146                        }
147                    }
148                    for (i = dstOffset + width * dstBpp; i < SIZE; i++) {
149                        if (dstBuffer[i] != dstByte) {
150                            av_log(NULL, AV_LOG_INFO,
151                                   "dst damaged at %d w:%d src:%d dst:%d %s\n",
152                                   i, width, srcOffset, dstOffset, name);
153                            failed = 1;
154                            break;
155                        }
156                    }
157                }
158            }
159        }
160        if (failed)
161            failedNum++;
162        else if (srcBpp)
163            passedNum++;
164    }
165
166    av_log(NULL, AV_LOG_INFO,
167           "\n%d converters passed, %d converters randomly overwrote memory\n",
168           passedNum, failedNum);
169    return failedNum;
170}
171