libswscale/colorspace-test.c

   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 <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
  36 int main(void)
  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 }