1/*
2 * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of Libav.
5 *
6 * Libav 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 * Libav 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 Libav; 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 <unistd.h>
24#include <stdlib.h>
25#include <inttypes.h>
26
27#include "swscale.h"
28#include "rgb2rgb.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, rgb15to16),
58            FUNC(2, 3, rgb15to24),
59            FUNC(2, 4, rgb15to32),
60            FUNC(2, 3, rgb16to24),
61            FUNC(2, 4, rgb16to32),
62            FUNC(3, 2, rgb24to15),
63            FUNC(3, 2, rgb24to16),
64            FUNC(3, 4, rgb24to32),
65            FUNC(4, 2, rgb32to15),
66            FUNC(4, 2, rgb32to16),
67            FUNC(4, 3, rgb32to24),
68            FUNC(2, 2, rgb16to15),
69            FUNC(2, 2, rgb15tobgr15),
70            FUNC(2, 2, rgb15tobgr16),
71            FUNC(2, 3, rgb15tobgr24),
72            FUNC(2, 4, rgb15tobgr32),
73            FUNC(2, 2, rgb16tobgr15),
74            FUNC(2, 2, rgb16tobgr16),
75            FUNC(2, 3, rgb16tobgr24),
76            FUNC(2, 4, rgb16tobgr32),
77            FUNC(3, 2, rgb24tobgr15),
78            FUNC(3, 2, rgb24tobgr16),
79            FUNC(3, 3, rgb24tobgr24),
80            FUNC(3, 4, rgb24tobgr32),
81            FUNC(4, 2, rgb32tobgr15),
82            FUNC(4, 2, rgb32tobgr16),
83            FUNC(4, 3, rgb32tobgr24),
84            FUNC(4, 4, shuffle_bytes_2103), /* rgb32tobgr32 */
85            FUNC(0, 0, NULL)
86        };
87        int width;
88        int failed = 0;
89        int srcBpp = 0;
90        int dstBpp = 0;
91
92        if (!func_info[funcNum].func)
93            break;
94
95        av_log(NULL, AV_LOG_INFO, ".");
96        memset(srcBuffer, srcByte, SIZE);
97
98        for (width = 63; width > 0; width--) {
99            int dstOffset;
100            for (dstOffset = 128; dstOffset < 196; dstOffset += 4) {
101                int srcOffset;
102                memset(dstBuffer, dstByte, SIZE);
103
104                for (srcOffset = 128; srcOffset < 196; srcOffset += 4) {
105                    uint8_t *src     = srcBuffer + srcOffset;
106                    uint8_t *dst     = dstBuffer + dstOffset;
107                    const char *name = NULL;
108
109                    // don't fill the screen with shit ...
110                    if (failed)
111                        break;
112
113                    srcBpp = func_info[funcNum].src_bpp;
114                    dstBpp = func_info[funcNum].dst_bpp;
115                    name   = func_info[funcNum].name;
116
117                    func_info[funcNum].func(src, dst, width * srcBpp);
118
119                    if (!srcBpp)
120                        break;
121
122                    for (i = 0; i < SIZE; i++) {
123                        if (srcBuffer[i] != srcByte) {
124                            av_log(NULL, AV_LOG_INFO,
125                                   "src damaged at %d w:%d src:%d dst:%d %s\n",
126                                   i, width, srcOffset, dstOffset, name);
127                            failed = 1;
128                            break;
129                        }
130                    }
131                    for (i = 0; i < dstOffset; i++) {
132                        if (dstBuffer[i] != dstByte) {
133                            av_log(NULL, AV_LOG_INFO,
134                                   "dst damaged at %d w:%d src:%d dst:%d %s\n",
135                                   i, width, srcOffset, dstOffset, name);
136                            failed = 1;
137                            break;
138                        }
139                    }
140                    for (i = dstOffset + width * dstBpp; i < SIZE; i++) {
141                        if (dstBuffer[i] != dstByte) {
142                            av_log(NULL, AV_LOG_INFO,
143                                   "dst damaged at %d w:%d src:%d dst:%d %s\n",
144                                   i, width, srcOffset, dstOffset, name);
145                            failed = 1;
146                            break;
147                        }
148                    }
149                }
150            }
151        }
152        if (failed)
153            failedNum++;
154        else if (srcBpp)
155            passedNum++;
156    }
157
158    av_log(NULL, AV_LOG_INFO,
159           "\n%d converters passed, %d converters randomly overwrote memory\n",
160           passedNum, failedNum);
161    return failedNum;
162}
163