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Rev | Author | Line No. | Line |
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96 | giacomo | 1 | |
2 | /* pngtest.c - a simple test program to test libpng |
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3 | * |
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4 | * libpng 1.2.5 - October 3, 2002 |
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5 | * For conditions of distribution and use, see copyright notice in png.h |
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6 | * Copyright (c) 1998-2002 Glenn Randers-Pehrson |
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7 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
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8 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
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9 | * |
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10 | * This program reads in a PNG image, writes it out again, and then |
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11 | * compares the two files. If the files are identical, this shows that |
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12 | * the basic chunk handling, filtering, and (de)compression code is working |
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13 | * properly. It does not currently test all of the transforms, although |
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14 | * it probably should. |
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15 | * |
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16 | * The program will report "FAIL" in certain legitimate cases: |
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17 | * 1) when the compression level or filter selection method is changed. |
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18 | * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192. |
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19 | * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks |
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20 | * exist in the input file. |
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21 | * 4) others not listed here... |
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22 | * In these cases, it is best to check with another tool such as "pngcheck" |
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23 | * to see what the differences between the two files are. |
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24 | * |
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25 | * If a filename is given on the command-line, then this file is used |
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26 | * for the input, rather than the default "pngtest.png". This allows |
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27 | * testing a wide variety of files easily. You can also test a number |
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28 | * of files at once by typing "pngtest -m file1.png file2.png ..." |
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29 | */ |
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30 | |||
31 | #if defined(_WIN32_WCE) |
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32 | # if _WIN32_WCE < 211 |
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33 | __error__ (f|w)printf functions are not supported on old WindowsCE.; |
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34 | # endif |
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35 | # include <windows.h> |
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36 | # include <stdlib.h> |
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37 | # define READFILE(file, data, length, check) \ |
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38 | if (ReadFile(file, data, length, &check,NULL)) check = 0 |
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39 | # define WRITEFILE(file, data, length, check)) \ |
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40 | if (WriteFile(file, data, length, &check, NULL)) check = 0 |
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41 | # define FCLOSE(file) CloseHandle(file) |
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42 | #else |
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43 | # include <stdio.h> |
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44 | # include <stdlib.h> |
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45 | # include <assert.h> |
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46 | # define READFILE(file, data, length, check) \ |
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47 | check=(png_size_t)fread(data,(png_size_t)1,length,file) |
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48 | # define WRITEFILE(file, data, length, check) \ |
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49 | check=(png_size_t)fwrite(data,(png_size_t)1, length, file) |
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50 | # define FCLOSE(file) fclose(file) |
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51 | #endif |
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52 | |||
53 | #if defined(PNG_NO_STDIO) |
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54 | # if defined(_WIN32_WCE) |
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55 | typedef HANDLE png_FILE_p; |
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56 | # else |
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57 | typedef FILE * png_FILE_p; |
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58 | # endif |
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59 | #endif |
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60 | |||
61 | /* Makes pngtest verbose so we can find problems (needs to be before png.h) */ |
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62 | #ifndef PNG_DEBUG |
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63 | # define PNG_DEBUG 0 |
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64 | #endif |
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65 | |||
66 | #if !PNG_DEBUG |
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67 | # define SINGLE_ROWBUF_ALLOC /* makes buffer overruns easier to nail */ |
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68 | #endif |
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69 | |||
70 | /* Turn on CPU timing |
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71 | #define PNGTEST_TIMING |
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72 | */ |
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73 | |||
74 | #ifdef PNG_NO_FLOATING_POINT_SUPPORTED |
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75 | #undef PNGTEST_TIMING |
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76 | #endif |
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77 | |||
78 | #ifdef PNGTEST_TIMING |
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79 | static float t_start, t_stop, t_decode, t_encode, t_misc; |
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80 | #include <time.h> |
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81 | #endif |
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82 | |||
83 | #include "png.h" |
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84 | |||
85 | /* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */ |
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86 | #ifndef png_jmpbuf |
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87 | # define png_jmpbuf(png_ptr) png_ptr->jmpbuf |
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88 | #endif |
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89 | |||
90 | #ifdef PNGTEST_TIMING |
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91 | static float t_start, t_stop, t_decode, t_encode, t_misc; |
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92 | #if !defined(PNG_tIME_SUPPORTED) |
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93 | #include <time.h> |
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94 | #endif |
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95 | #endif |
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96 | |||
97 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
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98 | static int tIME_chunk_present=0; |
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99 | static char tIME_string[30] = "no tIME chunk present in file"; |
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100 | #endif |
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101 | |||
102 | static int verbose = 0; |
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103 | |||
104 | int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname)); |
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105 | |||
106 | #ifdef __TURBOC__ |
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107 | #include <mem.h> |
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108 | #endif |
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109 | |||
110 | /* defined so I can write to a file on gui/windowing platforms */ |
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111 | /* #define STDERR stderr */ |
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112 | #define STDERR stdout /* for DOS */ |
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113 | |||
114 | /* example of using row callbacks to make a simple progress meter */ |
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115 | static int status_pass=1; |
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116 | static int status_dots_requested=0; |
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117 | static int status_dots=1; |
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118 | |||
119 | void |
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120 | #ifdef PNG_1_0_X |
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121 | PNGAPI |
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122 | #endif |
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123 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass); |
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124 | void |
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125 | #ifdef PNG_1_0_X |
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126 | PNGAPI |
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127 | #endif |
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128 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
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129 | { |
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130 | if(png_ptr == NULL || row_number > PNG_MAX_UINT) return; |
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131 | if(status_pass != pass) |
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132 | { |
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133 | cprintf("\n Pass %d: ",pass); |
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134 | status_pass = pass; |
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135 | status_dots = 31; |
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136 | } |
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137 | status_dots--; |
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138 | if(status_dots == 0) |
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139 | { |
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140 | cprintf("\n "); |
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141 | status_dots=30; |
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142 | } |
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143 | cprintf("r"); |
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144 | } |
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145 | |||
146 | void |
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147 | #ifdef PNG_1_0_X |
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148 | PNGAPI |
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149 | #endif |
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150 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass); |
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151 | void |
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152 | #ifdef PNG_1_0_X |
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153 | PNGAPI |
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154 | #endif |
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155 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
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156 | { |
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157 | if(png_ptr == NULL || row_number > PNG_MAX_UINT || pass > 7) return; |
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158 | cprintf("w"); |
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159 | } |
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160 | |||
161 | |||
162 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
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163 | /* Example of using user transform callback (we don't transform anything, |
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164 | but merely examine the row filters. We set this to 256 rather than |
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165 | 5 in case illegal filter values are present.) */ |
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166 | static png_uint_32 filters_used[256]; |
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167 | void |
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168 | #ifdef PNG_1_0_X |
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169 | PNGAPI |
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170 | #endif |
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171 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data); |
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172 | void |
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173 | #ifdef PNG_1_0_X |
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174 | PNGAPI |
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175 | #endif |
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176 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
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177 | { |
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178 | if(png_ptr != NULL && row_info != NULL) |
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179 | ++filters_used[*(data-1)]; |
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180 | } |
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181 | #endif |
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182 | |||
183 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
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184 | /* example of using user transform callback (we don't transform anything, |
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185 | but merely count the zero samples) */ |
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186 | |||
187 | static png_uint_32 zero_samples; |
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188 | |||
189 | void |
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190 | #ifdef PNG_1_0_X |
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191 | PNGAPI |
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192 | #endif |
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193 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data); |
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194 | void |
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195 | #ifdef PNG_1_0_X |
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196 | PNGAPI |
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197 | #endif |
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198 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
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199 | { |
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200 | png_bytep dp = data; |
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201 | if(png_ptr == NULL)return; |
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202 | |||
203 | /* contents of row_info: |
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204 | * png_uint_32 width width of row |
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205 | * png_uint_32 rowbytes number of bytes in row |
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206 | * png_byte color_type color type of pixels |
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207 | * png_byte bit_depth bit depth of samples |
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208 | * png_byte channels number of channels (1-4) |
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209 | * png_byte pixel_depth bits per pixel (depth*channels) |
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210 | */ |
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211 | |||
212 | |||
213 | /* counts the number of zero samples (or zero pixels if color_type is 3 */ |
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214 | |||
215 | if(row_info->color_type == 0 || row_info->color_type == 3) |
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216 | { |
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217 | int pos=0; |
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218 | png_uint_32 n, nstop; |
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219 | for (n=0, nstop=row_info->width; n<nstop; n++) |
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220 | { |
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221 | if(row_info->bit_depth == 1) |
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222 | { |
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223 | if(((*dp << pos++ ) & 0x80) == 0) zero_samples++; |
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224 | if(pos == 8) |
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225 | { |
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226 | pos = 0; |
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227 | dp++; |
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228 | } |
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229 | } |
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230 | if(row_info->bit_depth == 2) |
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231 | { |
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232 | if(((*dp << (pos+=2)) & 0xc0) == 0) zero_samples++; |
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233 | if(pos == 8) |
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234 | { |
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235 | pos = 0; |
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236 | dp++; |
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237 | } |
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238 | } |
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239 | if(row_info->bit_depth == 4) |
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240 | { |
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241 | if(((*dp << (pos+=4)) & 0xf0) == 0) zero_samples++; |
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242 | if(pos == 8) |
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243 | { |
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244 | pos = 0; |
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245 | dp++; |
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246 | } |
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247 | } |
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248 | if(row_info->bit_depth == 8) |
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249 | if(*dp++ == 0) zero_samples++; |
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250 | if(row_info->bit_depth == 16) |
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251 | { |
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252 | if((*dp | *(dp+1)) == 0) zero_samples++; |
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253 | dp+=2; |
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254 | } |
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255 | } |
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256 | } |
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257 | else /* other color types */ |
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258 | { |
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259 | png_uint_32 n, nstop; |
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260 | int channel; |
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261 | int color_channels = row_info->channels; |
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262 | if(row_info->color_type > 3)color_channels--; |
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263 | |||
264 | for (n=0, nstop=row_info->width; n<nstop; n++) |
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265 | { |
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266 | for (channel = 0; channel < color_channels; channel++) |
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267 | { |
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268 | if(row_info->bit_depth == 8) |
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269 | if(*dp++ == 0) zero_samples++; |
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270 | if(row_info->bit_depth == 16) |
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271 | { |
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272 | if((*dp | *(dp+1)) == 0) zero_samples++; |
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273 | dp+=2; |
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274 | } |
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275 | } |
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276 | if(row_info->color_type > 3) |
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277 | { |
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278 | dp++; |
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279 | if(row_info->bit_depth == 16)dp++; |
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280 | } |
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281 | } |
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282 | } |
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283 | } |
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284 | #endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ |
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285 | |||
286 | static int wrote_question = 0; |
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287 | |||
288 | #if defined(PNG_NO_STDIO) |
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289 | /* START of code to validate stdio-free compilation */ |
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290 | /* These copies of the default read/write functions come from pngrio.c and */ |
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291 | /* pngwio.c. They allow "don't include stdio" testing of the library. */ |
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292 | /* This is the function that does the actual reading of data. If you are |
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293 | not reading from a standard C stream, you should create a replacement |
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294 | read_data function and use it at run time with png_set_read_fn(), rather |
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295 | than changing the library. */ |
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296 | |||
297 | #ifndef USE_FAR_KEYWORD |
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298 | static void |
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299 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
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300 | { |
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301 | png_size_t check; |
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302 | |||
303 | /* fread() returns 0 on error, so it is OK to store this in a png_size_t |
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304 | * instead of an int, which is what fread() actually returns. |
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305 | */ |
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306 | READFILE((png_FILE_p)png_ptr->io_ptr, data, length, check); |
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307 | |||
308 | if (check != length) |
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309 | { |
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310 | png_error(png_ptr, "Read Error!"); |
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311 | } |
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312 | } |
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313 | #else |
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314 | /* this is the model-independent version. Since the standard I/O library |
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315 | can't handle far buffers in the medium and small models, we have to copy |
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316 | the data. |
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317 | */ |
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318 | |||
319 | #define NEAR_BUF_SIZE 1024 |
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320 | #define MIN(a,b) (a <= b ? a : b) |
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321 | |||
322 | static void |
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323 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
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324 | { |
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325 | int check; |
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326 | png_byte *n_data; |
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327 | png_FILE_p io_ptr; |
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328 | |||
329 | /* Check if data really is near. If so, use usual code. */ |
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330 | n_data = (png_byte *)CVT_PTR_NOCHECK(data); |
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331 | io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); |
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332 | if ((png_bytep)n_data == data) |
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333 | { |
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334 | READFILE(io_ptr, n_data, length, check); |
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335 | } |
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336 | else |
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337 | { |
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338 | png_byte buf[NEAR_BUF_SIZE]; |
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339 | png_size_t read, remaining, err; |
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340 | check = 0; |
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341 | remaining = length; |
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342 | do |
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343 | { |
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344 | read = MIN(NEAR_BUF_SIZE, remaining); |
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345 | READFILE(io_ptr, buf, 1, err); |
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346 | png_memcpy(data, buf, read); /* copy far buffer to near buffer */ |
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347 | if(err != read) |
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348 | break; |
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349 | else |
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350 | check += err; |
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351 | data += read; |
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352 | remaining -= read; |
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353 | } |
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354 | while (remaining != 0); |
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355 | } |
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356 | if (check != length) |
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357 | { |
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358 | png_error(png_ptr, "read Error"); |
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359 | } |
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360 | } |
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361 | #endif /* USE_FAR_KEYWORD */ |
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362 | |||
363 | #if defined(PNG_WRITE_FLUSH_SUPPORTED) |
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364 | static void |
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365 | pngtest_flush(png_structp png_ptr) |
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366 | { |
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367 | #if !defined(_WIN32_WCE) |
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368 | png_FILE_p io_ptr; |
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369 | io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr)); |
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370 | if (io_ptr != NULL) |
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371 | fflush(io_ptr); |
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372 | #endif |
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373 | } |
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374 | #endif |
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375 | |||
376 | /* This is the function that does the actual writing of data. If you are |
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377 | not writing to a standard C stream, you should create a replacement |
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378 | write_data function and use it at run time with png_set_write_fn(), rather |
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379 | than changing the library. */ |
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380 | #ifndef USE_FAR_KEYWORD |
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381 | static void |
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382 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
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383 | { |
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384 | png_uint_32 check; |
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385 | |||
386 | WRITEFILE((png_FILE_p)png_ptr->io_ptr, data, length, check); |
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387 | if (check != length) |
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388 | { |
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389 | png_error(png_ptr, "Write Error"); |
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390 | } |
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391 | } |
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392 | #else |
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393 | /* this is the model-independent version. Since the standard I/O library |
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394 | can't handle far buffers in the medium and small models, we have to copy |
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395 | the data. |
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396 | */ |
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397 | |||
398 | #define NEAR_BUF_SIZE 1024 |
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399 | #define MIN(a,b) (a <= b ? a : b) |
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400 | |||
401 | static void |
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402 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
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403 | { |
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404 | png_uint_32 check; |
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405 | png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ |
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406 | png_FILE_p io_ptr; |
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407 | |||
408 | /* Check if data really is near. If so, use usual code. */ |
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409 | near_data = (png_byte *)CVT_PTR_NOCHECK(data); |
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410 | io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); |
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411 | if ((png_bytep)near_data == data) |
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412 | { |
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413 | WRITEFILE(io_ptr, near_data, length, check); |
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414 | } |
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415 | else |
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416 | { |
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417 | png_byte buf[NEAR_BUF_SIZE]; |
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418 | png_size_t written, remaining, err; |
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419 | check = 0; |
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420 | remaining = length; |
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421 | do |
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422 | { |
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423 | written = MIN(NEAR_BUF_SIZE, remaining); |
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424 | png_memcpy(buf, data, written); /* copy far buffer to near buffer */ |
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425 | WRITEFILE(io_ptr, buf, written, err); |
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426 | if (err != written) |
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427 | break; |
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428 | else |
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429 | check += err; |
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430 | data += written; |
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431 | remaining -= written; |
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432 | } |
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433 | while (remaining != 0); |
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434 | } |
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435 | if (check != length) |
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436 | { |
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437 | png_error(png_ptr, "Write Error"); |
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438 | } |
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439 | } |
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440 | |||
441 | #endif /* USE_FAR_KEYWORD */ |
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442 | |||
443 | /* This function is called when there is a warning, but the library thinks |
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444 | * it can continue anyway. Replacement functions don't have to do anything |
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445 | * here if you don't want to. In the default configuration, png_ptr is |
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446 | * not used, but it is passed in case it may be useful. |
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447 | */ |
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448 | static void |
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449 | pngtest_warning(png_structp png_ptr, png_const_charp message) |
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450 | { |
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451 | PNG_CONST char *name = "UNKNOWN (ERROR!)"; |
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452 | if (png_ptr != NULL && png_ptr->error_ptr != NULL) |
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453 | name = png_ptr->error_ptr; |
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454 | cprintf("%s: libpng warning: %s\n", name, message); |
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455 | } |
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456 | |||
457 | /* This is the default error handling function. Note that replacements for |
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458 | * this function MUST NOT RETURN, or the program will likely crash. This |
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459 | * function is used by default, or if the program supplies NULL for the |
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460 | * error function pointer in png_set_error_fn(). |
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461 | */ |
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462 | static void |
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463 | pngtest_error(png_structp png_ptr, png_const_charp message) |
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464 | { |
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465 | pngtest_warning(png_ptr, message); |
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466 | /* We can return because png_error calls the default handler, which is |
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467 | * actually OK in this case. */ |
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468 | } |
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469 | #endif /* PNG_NO_STDIO */ |
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470 | /* END of code to validate stdio-free compilation */ |
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471 | |||
472 | /* START of code to validate memory allocation and deallocation */ |
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473 | #ifdef PNG_USER_MEM_SUPPORTED |
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474 | |||
475 | /* Allocate memory. For reasonable files, size should never exceed |
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476 | 64K. However, zlib may allocate more then 64K if you don't tell |
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477 | it not to. See zconf.h and png.h for more information. zlib does |
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478 | need to allocate exactly 64K, so whatever you call here must |
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479 | have the ability to do that. |
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480 | |||
481 | This piece of code can be compiled to validate max 64K allocations |
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482 | by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. */ |
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483 | typedef struct memory_information |
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484 | { |
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485 | png_uint_32 size; |
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486 | png_voidp pointer; |
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487 | struct memory_information FAR *next; |
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488 | } memory_information; |
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489 | typedef memory_information FAR *memory_infop; |
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490 | |||
491 | static memory_infop pinformation = NULL; |
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492 | static int current_allocation = 0; |
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493 | static int maximum_allocation = 0; |
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494 | static int total_allocation = 0; |
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495 | static int num_allocations = 0; |
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496 | |||
497 | png_voidp png_debug_malloc PNGARG((png_structp png_ptr, png_uint_32 size)); |
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498 | void png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr)); |
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499 | |||
500 | png_voidp |
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501 | png_debug_malloc(png_structp png_ptr, png_uint_32 size) |
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502 | { |
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503 | |||
504 | /* png_malloc has already tested for NULL; png_create_struct calls |
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505 | png_debug_malloc directly, with png_ptr == NULL which is OK */ |
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506 | |||
507 | if (size == 0) |
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508 | return (NULL); |
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509 | |||
510 | /* This calls the library allocator twice, once to get the requested |
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511 | buffer and once to get a new free list entry. */ |
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512 | { |
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513 | memory_infop pinfo = (memory_infop)png_malloc_default(png_ptr, |
||
514 | (png_uint_32)sizeof *pinfo); |
||
515 | pinfo->size = size; |
||
516 | current_allocation += size; |
||
517 | total_allocation += size; |
||
518 | num_allocations ++; |
||
519 | if (current_allocation > maximum_allocation) |
||
520 | maximum_allocation = current_allocation; |
||
521 | pinfo->pointer = (png_voidp)png_malloc_default(png_ptr, size); |
||
522 | pinfo->next = pinformation; |
||
523 | pinformation = pinfo; |
||
524 | /* Make sure the caller isn't assuming zeroed memory. */ |
||
525 | png_memset(pinfo->pointer, 0xdd, pinfo->size); |
||
526 | #if PNG_DEBUG |
||
527 | if(verbose) |
||
528 | printf("png_malloc %lu bytes at %x\n",size,pinfo->pointer); |
||
529 | #endif |
||
530 | assert(pinfo->size != 12345678); |
||
531 | return (png_voidp)(pinfo->pointer); |
||
532 | } |
||
533 | } |
||
534 | |||
535 | /* Free a pointer. It is removed from the list at the same time. */ |
||
536 | void |
||
537 | png_debug_free(png_structp png_ptr, png_voidp ptr) |
||
538 | { |
||
539 | if (png_ptr == NULL) |
||
540 | cprintf("NULL pointer to png_debug_free.\n"); |
||
541 | if (ptr == 0) |
||
542 | { |
||
543 | #if 0 /* This happens all the time. */ |
||
544 | cprintf("WARNING: freeing NULL pointer\n"); |
||
545 | #endif |
||
546 | return; |
||
547 | } |
||
548 | |||
549 | /* Unlink the element from the list. */ |
||
550 | { |
||
551 | memory_infop FAR *ppinfo = &pinformation; |
||
552 | for (;;) |
||
553 | { |
||
554 | memory_infop pinfo = *ppinfo; |
||
555 | if (pinfo->pointer == ptr) |
||
556 | { |
||
557 | *ppinfo = pinfo->next; |
||
558 | current_allocation -= pinfo->size; |
||
559 | if (current_allocation < 0) |
||
560 | cprintf("Duplicate free of memory\n"); |
||
561 | /* We must free the list element too, but first kill |
||
562 | the memory that is to be freed. */ |
||
563 | png_memset(ptr, 0x55, pinfo->size); |
||
564 | png_free_default(png_ptr, pinfo); |
||
565 | pinfo=NULL; |
||
566 | break; |
||
567 | } |
||
568 | if (pinfo->next == NULL) |
||
569 | { |
||
570 | cprintf("Pointer %x not found\n", (unsigned int)ptr); |
||
571 | break; |
||
572 | } |
||
573 | ppinfo = &pinfo->next; |
||
574 | } |
||
575 | } |
||
576 | |||
577 | /* Finally free the data. */ |
||
578 | #if PNG_DEBUG |
||
579 | if(verbose) |
||
580 | cprintf("Freeing %x\n",ptr); |
||
581 | #endif |
||
582 | png_free_default(png_ptr, ptr); |
||
583 | ptr=NULL; |
||
584 | } |
||
585 | #endif /* PNG_USER_MEM_SUPPORTED */ |
||
586 | /* END of code to test memory allocation/deallocation */ |
||
587 | |||
588 | /* Test one file */ |
||
589 | int |
||
590 | test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) |
||
591 | { |
||
592 | static png_FILE_p fpin; |
||
593 | static png_FILE_p fpout; /* "static" prevents setjmp corruption */ |
||
594 | png_structp read_ptr; |
||
595 | png_infop read_info_ptr, end_info_ptr; |
||
596 | #ifdef PNG_WRITE_SUPPORTED |
||
597 | png_structp write_ptr; |
||
598 | png_infop write_info_ptr; |
||
599 | png_infop write_end_info_ptr; |
||
600 | #else |
||
601 | png_structp write_ptr = NULL; |
||
602 | png_infop write_info_ptr = NULL; |
||
603 | png_infop write_end_info_ptr = NULL; |
||
604 | #endif |
||
605 | png_bytep row_buf; |
||
606 | png_uint_32 y; |
||
607 | png_uint_32 width, height; |
||
608 | int num_pass, pass; |
||
609 | int bit_depth, color_type; |
||
610 | #ifdef PNG_SETJMP_SUPPORTED |
||
611 | #ifdef USE_FAR_KEYWORD |
||
612 | jmp_buf jmpbuf; |
||
613 | #endif |
||
614 | #endif |
||
615 | |||
616 | #if defined(_WIN32_WCE) |
||
617 | TCHAR path[MAX_PATH]; |
||
618 | #endif |
||
619 | char inbuf[256], outbuf[256]; |
||
620 | |||
621 | row_buf = NULL; |
||
622 | |||
623 | #if defined(_WIN32_WCE) |
||
624 | MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH); |
||
625 | if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) |
||
626 | #else |
||
627 | if ((fpin = fopen(inname, "rb")) == NULL) |
||
628 | #endif |
||
629 | { |
||
630 | cprintf("Could not find input file %s\n", inname); |
||
631 | return (1); |
||
632 | } |
||
633 | |||
634 | #if defined(_WIN32_WCE) |
||
635 | MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH); |
||
636 | if ((fpout = CreateFile(path, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL)) == INVALID_HANDLE_VALUE) |
||
637 | #else |
||
638 | if ((fpout = fopen(outname, "wb")) == NULL) |
||
639 | #endif |
||
640 | { |
||
641 | cprintf("Could not open output file %s\n", outname); |
||
642 | FCLOSE(fpin); |
||
643 | return (1); |
||
644 | } |
||
645 | |||
646 | png_debug(0, "Allocating read and write structures\n"); |
||
647 | #ifdef PNG_USER_MEM_SUPPORTED |
||
648 | read_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
||
649 | png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL, |
||
650 | (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free); |
||
651 | #else |
||
652 | read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
||
653 | png_error_ptr_NULL, png_error_ptr_NULL); |
||
654 | #endif |
||
655 | #if defined(PNG_NO_STDIO) |
||
656 | png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error, |
||
657 | pngtest_warning); |
||
658 | #endif |
||
659 | #ifdef PNG_WRITE_SUPPORTED |
||
660 | #ifdef PNG_USER_MEM_SUPPORTED |
||
661 | write_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
||
662 | png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL, |
||
663 | (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free); |
||
664 | #else |
||
665 | write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
||
666 | png_error_ptr_NULL, png_error_ptr_NULL); |
||
667 | #endif |
||
668 | #if defined(PNG_NO_STDIO) |
||
669 | png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error, |
||
670 | pngtest_warning); |
||
671 | #endif |
||
672 | #endif |
||
673 | png_debug(0, "Allocating read_info, write_info and end_info structures\n"); |
||
674 | read_info_ptr = png_create_info_struct(read_ptr); |
||
675 | end_info_ptr = png_create_info_struct(read_ptr); |
||
676 | #ifdef PNG_WRITE_SUPPORTED |
||
677 | write_info_ptr = png_create_info_struct(write_ptr); |
||
678 | write_end_info_ptr = png_create_info_struct(write_ptr); |
||
679 | #endif |
||
680 | |||
681 | #ifdef PNG_SETJMP_SUPPORTED |
||
682 | png_debug(0, "Setting jmpbuf for read struct\n"); |
||
683 | #ifdef USE_FAR_KEYWORD |
||
684 | if (setjmp(jmpbuf)) |
||
685 | #else |
||
686 | if (setjmp(png_jmpbuf(read_ptr))) |
||
687 | #endif |
||
688 | { |
||
689 | cprintf("%s -> %s: libpng read error\n", inname, outname); |
||
690 | if (row_buf) |
||
691 | png_free(read_ptr, row_buf); |
||
692 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
||
693 | #ifdef PNG_WRITE_SUPPORTED |
||
694 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
||
695 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
||
696 | #endif |
||
697 | FCLOSE(fpin); |
||
698 | FCLOSE(fpout); |
||
699 | return (1); |
||
700 | } |
||
701 | #ifdef USE_FAR_KEYWORD |
||
702 | png_memcpy(png_jmpbuf(read_ptr),jmpbuf,sizeof(jmp_buf)); |
||
703 | #endif |
||
704 | |||
705 | #ifdef PNG_WRITE_SUPPORTED |
||
706 | png_debug(0, "Setting jmpbuf for write struct\n"); |
||
707 | #ifdef USE_FAR_KEYWORD |
||
708 | if (setjmp(jmpbuf)) |
||
709 | #else |
||
710 | if (setjmp(png_jmpbuf(write_ptr))) |
||
711 | #endif |
||
712 | { |
||
713 | cprintf("%s -> %s: libpng write error\n", inname, outname); |
||
714 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
||
715 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
||
716 | #ifdef PNG_WRITE_SUPPORTED |
||
717 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
||
718 | #endif |
||
719 | FCLOSE(fpin); |
||
720 | FCLOSE(fpout); |
||
721 | return (1); |
||
722 | } |
||
723 | #ifdef USE_FAR_KEYWORD |
||
724 | png_memcpy(png_jmpbuf(write_ptr),jmpbuf,sizeof(jmp_buf)); |
||
725 | #endif |
||
726 | #endif |
||
727 | #endif |
||
728 | |||
729 | png_debug(0, "Initializing input and output streams\n"); |
||
730 | #if !defined(PNG_NO_STDIO) |
||
731 | png_init_io(read_ptr, fpin); |
||
732 | # ifdef PNG_WRITE_SUPPORTED |
||
733 | png_init_io(write_ptr, fpout); |
||
734 | # endif |
||
735 | #else |
||
736 | png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data); |
||
737 | # ifdef PNG_WRITE_SUPPORTED |
||
738 | png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data, |
||
739 | # if defined(PNG_WRITE_FLUSH_SUPPORTED) |
||
740 | pngtest_flush); |
||
741 | # else |
||
742 | NULL); |
||
743 | # endif |
||
744 | # endif |
||
745 | #endif |
||
746 | if(status_dots_requested == 1) |
||
747 | { |
||
748 | #ifdef PNG_WRITE_SUPPORTED |
||
749 | png_set_write_status_fn(write_ptr, write_row_callback); |
||
750 | #endif |
||
751 | png_set_read_status_fn(read_ptr, read_row_callback); |
||
752 | } |
||
753 | else |
||
754 | { |
||
755 | #ifdef PNG_WRITE_SUPPORTED |
||
756 | png_set_write_status_fn(write_ptr, png_write_status_ptr_NULL); |
||
757 | #endif |
||
758 | png_set_read_status_fn(read_ptr, png_read_status_ptr_NULL); |
||
759 | } |
||
760 | |||
761 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
||
762 | { |
||
763 | int i; |
||
764 | for(i=0; i<256; i++) |
||
765 | filters_used[i]=0; |
||
766 | png_set_read_user_transform_fn(read_ptr, count_filters); |
||
767 | } |
||
768 | #endif |
||
769 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
||
770 | zero_samples=0; |
||
771 | png_set_write_user_transform_fn(write_ptr, count_zero_samples); |
||
772 | #endif |
||
773 | |||
774 | #define HANDLE_CHUNK_IF_SAFE 2 |
||
775 | #define HANDLE_CHUNK_ALWAYS 3 |
||
776 | #if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
||
777 | png_set_keep_unknown_chunks(read_ptr, HANDLE_CHUNK_ALWAYS, |
||
778 | png_bytep_NULL, 0); |
||
779 | #endif |
||
780 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
||
781 | png_set_keep_unknown_chunks(write_ptr, HANDLE_CHUNK_IF_SAFE, |
||
782 | png_bytep_NULL, 0); |
||
783 | #endif |
||
784 | |||
785 | png_debug(0, "Reading info struct\n"); |
||
786 | png_read_info(read_ptr, read_info_ptr); |
||
787 | |||
788 | png_debug(0, "Transferring info struct\n"); |
||
789 | { |
||
790 | int interlace_type, compression_type, filter_type; |
||
791 | |||
792 | if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, |
||
793 | &color_type, &interlace_type, &compression_type, &filter_type)) |
||
794 | { |
||
795 | png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, |
||
796 | #if defined(PNG_WRITE_INTERLACING_SUPPORTED) |
||
797 | color_type, interlace_type, compression_type, filter_type); |
||
798 | #else |
||
799 | color_type, PNG_INTERLACE_NONE, compression_type, filter_type); |
||
800 | #endif |
||
801 | } |
||
802 | } |
||
803 | #if defined(PNG_FIXED_POINT_SUPPORTED) |
||
804 | #if defined(PNG_cHRM_SUPPORTED) |
||
805 | { |
||
806 | png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x, |
||
807 | blue_y; |
||
808 | if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, |
||
809 | &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
||
810 | { |
||
811 | png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x, |
||
812 | red_y, green_x, green_y, blue_x, blue_y); |
||
813 | } |
||
814 | } |
||
815 | #endif |
||
816 | #if defined(PNG_gAMA_SUPPORTED) |
||
817 | { |
||
818 | png_fixed_point gamma; |
||
819 | |||
820 | if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma)) |
||
821 | { |
||
822 | png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma); |
||
823 | } |
||
824 | } |
||
825 | #endif |
||
826 | #else /* Use floating point versions */ |
||
827 | #if defined(PNG_FLOATING_POINT_SUPPORTED) |
||
828 | #if defined(PNG_cHRM_SUPPORTED) |
||
829 | { |
||
830 | double white_x, white_y, red_x, red_y, green_x, green_y, blue_x, |
||
831 | blue_y; |
||
832 | if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, |
||
833 | &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
||
834 | { |
||
835 | png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, |
||
836 | red_y, green_x, green_y, blue_x, blue_y); |
||
837 | } |
||
838 | } |
||
839 | #endif |
||
840 | #if defined(PNG_gAMA_SUPPORTED) |
||
841 | { |
||
842 | double gamma; |
||
843 | |||
844 | if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) |
||
845 | { |
||
846 | png_set_gAMA(write_ptr, write_info_ptr, gamma); |
||
847 | } |
||
848 | } |
||
849 | #endif |
||
850 | #endif /* floating point */ |
||
851 | #endif /* fixed point */ |
||
852 | #if defined(PNG_iCCP_SUPPORTED) |
||
853 | { |
||
854 | png_charp name; |
||
855 | png_charp profile; |
||
856 | png_uint_32 proflen; |
||
857 | int compression_type; |
||
858 | |||
859 | if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type, |
||
860 | &profile, &proflen)) |
||
861 | { |
||
862 | png_set_iCCP(write_ptr, write_info_ptr, name, compression_type, |
||
863 | profile, proflen); |
||
864 | } |
||
865 | } |
||
866 | #endif |
||
867 | #if defined(PNG_sRGB_SUPPORTED) |
||
868 | { |
||
869 | int intent; |
||
870 | |||
871 | if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) |
||
872 | { |
||
873 | png_set_sRGB(write_ptr, write_info_ptr, intent); |
||
874 | } |
||
875 | } |
||
876 | #endif |
||
877 | { |
||
878 | png_colorp palette; |
||
879 | int num_palette; |
||
880 | |||
881 | if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) |
||
882 | { |
||
883 | png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); |
||
884 | } |
||
885 | } |
||
886 | #if defined(PNG_bKGD_SUPPORTED) |
||
887 | { |
||
888 | png_color_16p background; |
||
889 | |||
890 | if (png_get_bKGD(read_ptr, read_info_ptr, &background)) |
||
891 | { |
||
892 | png_set_bKGD(write_ptr, write_info_ptr, background); |
||
893 | } |
||
894 | } |
||
895 | #endif |
||
896 | #if defined(PNG_hIST_SUPPORTED) |
||
897 | { |
||
898 | png_uint_16p hist; |
||
899 | |||
900 | if (png_get_hIST(read_ptr, read_info_ptr, &hist)) |
||
901 | { |
||
902 | png_set_hIST(write_ptr, write_info_ptr, hist); |
||
903 | } |
||
904 | } |
||
905 | #endif |
||
906 | #if defined(PNG_oFFs_SUPPORTED) |
||
907 | { |
||
908 | png_int_32 offset_x, offset_y; |
||
909 | int unit_type; |
||
910 | |||
911 | if (png_get_oFFs(read_ptr, read_info_ptr,&offset_x,&offset_y,&unit_type)) |
||
912 | { |
||
913 | png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); |
||
914 | } |
||
915 | } |
||
916 | #endif |
||
917 | #if defined(PNG_pCAL_SUPPORTED) |
||
918 | { |
||
919 | png_charp purpose, units; |
||
920 | png_charpp params; |
||
921 | png_int_32 X0, X1; |
||
922 | int type, nparams; |
||
923 | |||
924 | if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, |
||
925 | &nparams, &units, ¶ms)) |
||
926 | { |
||
927 | png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, |
||
928 | nparams, units, params); |
||
929 | } |
||
930 | } |
||
931 | #endif |
||
932 | #if defined(PNG_pHYs_SUPPORTED) |
||
933 | { |
||
934 | png_uint_32 res_x, res_y; |
||
935 | int unit_type; |
||
936 | |||
937 | if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) |
||
938 | { |
||
939 | png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); |
||
940 | } |
||
941 | } |
||
942 | #endif |
||
943 | #if defined(PNG_sBIT_SUPPORTED) |
||
944 | { |
||
945 | png_color_8p sig_bit; |
||
946 | |||
947 | if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) |
||
948 | { |
||
949 | png_set_sBIT(write_ptr, write_info_ptr, sig_bit); |
||
950 | } |
||
951 | } |
||
952 | #endif |
||
953 | #if defined(PNG_sCAL_SUPPORTED) |
||
954 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
||
955 | { |
||
956 | int unit; |
||
957 | double scal_width, scal_height; |
||
958 | |||
959 | if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, |
||
960 | &scal_height)) |
||
961 | { |
||
962 | png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height); |
||
963 | } |
||
964 | } |
||
965 | #else |
||
966 | #ifdef PNG_FIXED_POINT_SUPPORTED |
||
967 | { |
||
968 | int unit; |
||
969 | png_charp scal_width, scal_height; |
||
970 | |||
971 | if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, |
||
972 | &scal_height)) |
||
973 | { |
||
974 | png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height); |
||
975 | } |
||
976 | } |
||
977 | #endif |
||
978 | #endif |
||
979 | #endif |
||
980 | #if defined(PNG_TEXT_SUPPORTED) |
||
981 | { |
||
982 | png_textp text_ptr; |
||
983 | int num_text; |
||
984 | |||
985 | if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) |
||
986 | { |
||
987 | png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks\n", num_text); |
||
988 | png_set_text(write_ptr, write_info_ptr, text_ptr, num_text); |
||
989 | } |
||
990 | } |
||
991 | #endif |
||
992 | #if defined(PNG_tIME_SUPPORTED) |
||
993 | { |
||
994 | png_timep mod_time; |
||
995 | |||
996 | if (png_get_tIME(read_ptr, read_info_ptr, &mod_time)) |
||
997 | { |
||
998 | png_set_tIME(write_ptr, write_info_ptr, mod_time); |
||
999 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
||
1000 | /* we have to use png_strcpy instead of "=" because the string |
||
1001 | pointed to by png_convert_to_rfc1123() gets free'ed before |
||
1002 | we use it */ |
||
1003 | png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time)); |
||
1004 | tIME_chunk_present++; |
||
1005 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
||
1006 | } |
||
1007 | } |
||
1008 | #endif |
||
1009 | #if defined(PNG_tRNS_SUPPORTED) |
||
1010 | { |
||
1011 | png_bytep trans; |
||
1012 | int num_trans; |
||
1013 | png_color_16p trans_values; |
||
1014 | |||
1015 | if (png_get_tRNS(read_ptr, read_info_ptr, &trans, &num_trans, |
||
1016 | &trans_values)) |
||
1017 | { |
||
1018 | png_set_tRNS(write_ptr, write_info_ptr, trans, num_trans, |
||
1019 | trans_values); |
||
1020 | } |
||
1021 | } |
||
1022 | #endif |
||
1023 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
||
1024 | { |
||
1025 | png_unknown_chunkp unknowns; |
||
1026 | int num_unknowns = (int)png_get_unknown_chunks(read_ptr, read_info_ptr, |
||
1027 | &unknowns); |
||
1028 | if (num_unknowns) |
||
1029 | { |
||
1030 | png_size_t i; |
||
1031 | png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns, |
||
1032 | num_unknowns); |
||
1033 | /* copy the locations from the read_info_ptr. The automatically |
||
1034 | generated locations in write_info_ptr are wrong because we |
||
1035 | haven't written anything yet */ |
||
1036 | for (i = 0; i < (png_size_t)num_unknowns; i++) |
||
1037 | png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, |
||
1038 | unknowns[i].location); |
||
1039 | } |
||
1040 | } |
||
1041 | #endif |
||
1042 | |||
1043 | #ifdef PNG_WRITE_SUPPORTED |
||
1044 | png_debug(0, "\nWriting info struct\n"); |
||
1045 | |||
1046 | /* If we wanted, we could write info in two steps: |
||
1047 | png_write_info_before_PLTE(write_ptr, write_info_ptr); |
||
1048 | */ |
||
1049 | png_write_info(write_ptr, write_info_ptr); |
||
1050 | #endif |
||
1051 | |||
1052 | #ifdef SINGLE_ROWBUF_ALLOC |
||
1053 | png_debug(0, "\nAllocating row buffer..."); |
||
1054 | row_buf = (png_bytep)png_malloc(read_ptr, |
||
1055 | png_get_rowbytes(read_ptr, read_info_ptr)); |
||
1056 | png_debug1(0, "0x%08lx\n\n", (unsigned long)row_buf); |
||
1057 | #endif /* SINGLE_ROWBUF_ALLOC */ |
||
1058 | png_debug(0, "Writing row data\n"); |
||
1059 | |||
1060 | #if defined(PNG_READ_INTERLACING_SUPPORTED) || \ |
||
1061 | defined(PNG_WRITE_INTERLACING_SUPPORTED) |
||
1062 | num_pass = png_set_interlace_handling(read_ptr); |
||
1063 | # ifdef PNG_WRITE_SUPPORTED |
||
1064 | png_set_interlace_handling(write_ptr); |
||
1065 | # endif |
||
1066 | #else |
||
1067 | num_pass=1; |
||
1068 | #endif |
||
1069 | |||
1070 | #ifdef PNGTEST_TIMING |
||
1071 | t_stop = (float)clock(); |
||
1072 | t_misc += (t_stop - t_start); |
||
1073 | t_start = t_stop; |
||
1074 | #endif |
||
1075 | for (pass = 0; pass < num_pass; pass++) |
||
1076 | { |
||
1077 | png_debug1(0, "Writing row data for pass %d\n",pass); |
||
1078 | for (y = 0; y < height; y++) |
||
1079 | { |
||
1080 | #ifndef SINGLE_ROWBUF_ALLOC |
||
1081 | png_debug2(0, "\nAllocating row buffer (pass %d, y = %ld)...", pass,y); |
||
1082 | row_buf = (png_bytep)png_malloc(read_ptr, |
||
1083 | png_get_rowbytes(read_ptr, read_info_ptr)); |
||
1084 | png_debug2(0, "0x%08lx (%ld bytes)\n", (unsigned long)row_buf, |
||
1085 | png_get_rowbytes(read_ptr, read_info_ptr)); |
||
1086 | #endif /* !SINGLE_ROWBUF_ALLOC */ |
||
1087 | png_read_rows(read_ptr, (png_bytepp)&row_buf, png_bytepp_NULL, 1); |
||
1088 | |||
1089 | #ifdef PNG_WRITE_SUPPORTED |
||
1090 | #ifdef PNGTEST_TIMING |
||
1091 | t_stop = (float)clock(); |
||
1092 | t_decode += (t_stop - t_start); |
||
1093 | t_start = t_stop; |
||
1094 | #endif |
||
1095 | png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); |
||
1096 | #ifdef PNGTEST_TIMING |
||
1097 | t_stop = (float)clock(); |
||
1098 | t_encode += (t_stop - t_start); |
||
1099 | t_start = t_stop; |
||
1100 | #endif |
||
1101 | #endif /* PNG_WRITE_SUPPORTED */ |
||
1102 | |||
1103 | #ifndef SINGLE_ROWBUF_ALLOC |
||
1104 | png_debug2(0, "Freeing row buffer (pass %d, y = %ld)\n\n", pass, y); |
||
1105 | png_free(read_ptr, row_buf); |
||
1106 | #endif /* !SINGLE_ROWBUF_ALLOC */ |
||
1107 | } |
||
1108 | } |
||
1109 | |||
1110 | #if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
||
1111 | png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); |
||
1112 | #endif |
||
1113 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
||
1114 | png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); |
||
1115 | #endif |
||
1116 | |||
1117 | png_debug(0, "Reading and writing end_info data\n"); |
||
1118 | |||
1119 | png_read_end(read_ptr, end_info_ptr); |
||
1120 | #if defined(PNG_TEXT_SUPPORTED) |
||
1121 | { |
||
1122 | png_textp text_ptr; |
||
1123 | int num_text; |
||
1124 | |||
1125 | if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0) |
||
1126 | { |
||
1127 | png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks\n", num_text); |
||
1128 | png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text); |
||
1129 | } |
||
1130 | } |
||
1131 | #endif |
||
1132 | #if defined(PNG_tIME_SUPPORTED) |
||
1133 | { |
||
1134 | png_timep mod_time; |
||
1135 | |||
1136 | if (png_get_tIME(read_ptr, end_info_ptr, &mod_time)) |
||
1137 | { |
||
1138 | png_set_tIME(write_ptr, write_end_info_ptr, mod_time); |
||
1139 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
||
1140 | /* we have to use png_strcpy instead of "=" because the string |
||
1141 | pointed to by png_convert_to_rfc1123() gets free'ed before |
||
1142 | we use it */ |
||
1143 | png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time)); |
||
1144 | tIME_chunk_present++; |
||
1145 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
||
1146 | } |
||
1147 | } |
||
1148 | #endif |
||
1149 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
||
1150 | { |
||
1151 | png_unknown_chunkp unknowns; |
||
1152 | int num_unknowns; |
||
1153 | num_unknowns = (int)png_get_unknown_chunks(read_ptr, end_info_ptr, |
||
1154 | &unknowns); |
||
1155 | if (num_unknowns) |
||
1156 | { |
||
1157 | png_size_t i; |
||
1158 | png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns, |
||
1159 | num_unknowns); |
||
1160 | /* copy the locations from the read_info_ptr. The automatically |
||
1161 | generated locations in write_end_info_ptr are wrong because we |
||
1162 | haven't written the end_info yet */ |
||
1163 | for (i = 0; i < (png_size_t)num_unknowns; i++) |
||
1164 | png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i, |
||
1165 | unknowns[i].location); |
||
1166 | } |
||
1167 | } |
||
1168 | #endif |
||
1169 | #ifdef PNG_WRITE_SUPPORTED |
||
1170 | png_write_end(write_ptr, write_end_info_ptr); |
||
1171 | #endif |
||
1172 | |||
1173 | #ifdef PNG_EASY_ACCESS_SUPPORTED |
||
1174 | if(verbose) |
||
1175 | { |
||
1176 | png_uint_32 iwidth, iheight; |
||
1177 | iwidth = png_get_image_width(write_ptr, write_info_ptr); |
||
1178 | iheight = png_get_image_height(write_ptr, write_info_ptr); |
||
1179 | cprintf("Image width = %lu, height = %lu\n", |
||
1180 | iwidth, iheight); |
||
1181 | } |
||
1182 | #endif |
||
1183 | |||
1184 | png_debug(0, "Destroying data structs\n"); |
||
1185 | #ifdef SINGLE_ROWBUF_ALLOC |
||
1186 | png_debug(1, "destroying row_buf for read_ptr\n"); |
||
1187 | png_free(read_ptr, row_buf); |
||
1188 | row_buf=NULL; |
||
1189 | #endif /* SINGLE_ROWBUF_ALLOC */ |
||
1190 | png_debug(1, "destroying read_ptr, read_info_ptr, end_info_ptr\n"); |
||
1191 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
||
1192 | #ifdef PNG_WRITE_SUPPORTED |
||
1193 | png_debug(1, "destroying write_end_info_ptr\n"); |
||
1194 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
||
1195 | png_debug(1, "destroying write_ptr, write_info_ptr\n"); |
||
1196 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
||
1197 | #endif |
||
1198 | png_debug(0, "Destruction complete.\n"); |
||
1199 | |||
1200 | FCLOSE(fpin); |
||
1201 | FCLOSE(fpout); |
||
1202 | |||
1203 | png_debug(0, "Opening files for comparison\n"); |
||
1204 | #if defined(_WIN32_WCE) |
||
1205 | MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH); |
||
1206 | if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) |
||
1207 | #else |
||
1208 | if ((fpin = fopen(inname, "rb")) == NULL) |
||
1209 | #endif |
||
1210 | { |
||
1211 | cprintf("Could not find file %s\n", inname); |
||
1212 | return (1); |
||
1213 | } |
||
1214 | |||
1215 | #if defined(_WIN32_WCE) |
||
1216 | MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH); |
||
1217 | if ((fpout = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) |
||
1218 | #else |
||
1219 | if ((fpout = fopen(outname, "rb")) == NULL) |
||
1220 | #endif |
||
1221 | { |
||
1222 | cprintf("Could not find file %s\n", outname); |
||
1223 | FCLOSE(fpin); |
||
1224 | return (1); |
||
1225 | } |
||
1226 | |||
1227 | for(;;) |
||
1228 | { |
||
1229 | png_size_t num_in, num_out; |
||
1230 | |||
1231 | READFILE(fpin, inbuf, 1, num_in); |
||
1232 | READFILE(fpout, outbuf, 1, num_out); |
||
1233 | |||
1234 | if (num_in != num_out) |
||
1235 | { |
||
1236 | cprintf("\nFiles %s and %s are of a different size\n", |
||
1237 | inname, outname); |
||
1238 | if(wrote_question == 0) |
||
1239 | { |
||
1240 | cprintf(" Was %s written with the same maximum IDAT chunk size (%d bytes),", |
||
1241 | inname,PNG_ZBUF_SIZE); |
||
1242 | cprintf("\n filtering heuristic (libpng default), compression"); |
||
1243 | cprintf(" level (zlib default),\n and zlib version (%s)?\n\n", |
||
1244 | ZLIB_VERSION); |
||
1245 | wrote_question=1; |
||
1246 | } |
||
1247 | FCLOSE(fpin); |
||
1248 | FCLOSE(fpout); |
||
1249 | return (0); |
||
1250 | } |
||
1251 | |||
1252 | if (!num_in) |
||
1253 | break; |
||
1254 | |||
1255 | if (png_memcmp(inbuf, outbuf, num_in)) |
||
1256 | { |
||
1257 | cprintf("\nFiles %s and %s are different\n", inname, outname); |
||
1258 | if(wrote_question == 0) |
||
1259 | { |
||
1260 | cprintf(" Was %s written with the same maximum IDAT chunk size (%d bytes),", |
||
1261 | inname,PNG_ZBUF_SIZE); |
||
1262 | cprintf("\n filtering heuristic (libpng default), compression"); |
||
1263 | cprintf(" level (zlib default),\n and zlib version (%s)?\n\n", |
||
1264 | ZLIB_VERSION); |
||
1265 | wrote_question=1; |
||
1266 | } |
||
1267 | FCLOSE(fpin); |
||
1268 | FCLOSE(fpout); |
||
1269 | return (0); |
||
1270 | } |
||
1271 | } |
||
1272 | |||
1273 | FCLOSE(fpin); |
||
1274 | FCLOSE(fpout); |
||
1275 | |||
1276 | return (0); |
||
1277 | } |
||
1278 | |||
1279 | /* input and output filenames */ |
||
1280 | #ifdef RISCOS |
||
1281 | static PNG_CONST char *inname = "pngtest/png"; |
||
1282 | static PNG_CONST char *outname = "pngout/png"; |
||
1283 | #else |
||
1284 | static PNG_CONST char *inname = "pngtest.png"; |
||
1285 | static PNG_CONST char *outname = "pngout.png"; |
||
1286 | #endif |
||
1287 | |||
1288 | int |
||
1289 | main(int argc, char *argv[]) |
||
1290 | { |
||
1291 | int multiple = 0; |
||
1292 | int ierror = 0; |
||
1293 | |||
1294 | cprintf("Testing libpng version %s\n", PNG_LIBPNG_VER_STRING); |
||
1295 | cprintf(" with zlib version %s\n", ZLIB_VERSION); |
||
1296 | cprintf("%s",png_get_copyright(NULL)); |
||
1297 | /* Show the version of libpng used in building the library */ |
||
1298 | cprintf(" library (%lu):%s", png_access_version_number(), |
||
1299 | png_get_header_version(NULL)); |
||
1300 | /* Show the version of libpng used in building the application */ |
||
1301 | cprintf(" pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER, |
||
1302 | PNG_HEADER_VERSION_STRING); |
||
1303 | cprintf(" sizeof(png_struct)=%ld, sizeof(png_info)=%ld\n", |
||
1304 | (long)sizeof(png_struct), (long)sizeof(png_info)); |
||
1305 | |||
1306 | /* Do some consistency checking on the memory allocation settings, I'm |
||
1307 | not sure this matters, but it is nice to know, the first of these |
||
1308 | tests should be impossible because of the way the macros are set |
||
1309 | in pngconf.h */ |
||
1310 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
||
1311 | cprintf(" NOTE: Zlib compiled for max 64k, libpng not\n"); |
||
1312 | #endif |
||
1313 | /* I think the following can happen. */ |
||
1314 | #if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K) |
||
1315 | cprintf(" NOTE: libpng compiled for max 64k, zlib not\n"); |
||
1316 | #endif |
||
1317 | |||
1318 | if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING)) |
||
1319 | { |
||
1320 | cprintf("Warning: versions are different between png.h and png.c\n"); |
||
1321 | cprintf(" png.h version: %s\n", PNG_LIBPNG_VER_STRING); |
||
1322 | cprintf(" png.c version: %s\n\n", png_libpng_ver); |
||
1323 | ++ierror; |
||
1324 | } |
||
1325 | |||
1326 | if (argc > 1) |
||
1327 | { |
||
1328 | if (strcmp(argv[1], "-m") == 0) |
||
1329 | { |
||
1330 | multiple = 1; |
||
1331 | status_dots_requested = 0; |
||
1332 | } |
||
1333 | else if (strcmp(argv[1], "-mv") == 0 || |
||
1334 | strcmp(argv[1], "-vm") == 0 ) |
||
1335 | { |
||
1336 | multiple = 1; |
||
1337 | verbose = 1; |
||
1338 | status_dots_requested = 1; |
||
1339 | } |
||
1340 | else if (strcmp(argv[1], "-v") == 0) |
||
1341 | { |
||
1342 | verbose = 1; |
||
1343 | status_dots_requested = 1; |
||
1344 | inname = argv[2]; |
||
1345 | } |
||
1346 | else |
||
1347 | { |
||
1348 | inname = argv[1]; |
||
1349 | status_dots_requested = 0; |
||
1350 | } |
||
1351 | } |
||
1352 | |||
1353 | if (!multiple && argc == 3+verbose) |
||
1354 | outname = argv[2+verbose]; |
||
1355 | |||
1356 | if ((!multiple && argc > 3+verbose) || (multiple && argc < 2)) |
||
1357 | { |
||
1358 | cprintf("usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", |
||
1359 | argv[0], argv[0]); |
||
1360 | cprintf(" reads/writes one PNG file (without -m) or multiple files (-m)\n"); |
||
1361 | cprintf(" with -m %s is used as a temporary file\n", outname); |
||
1362 | exit(1); |
||
1363 | } |
||
1364 | |||
1365 | if (multiple) |
||
1366 | { |
||
1367 | int i; |
||
1368 | #ifdef PNG_USER_MEM_SUPPORTED |
||
1369 | int allocation_now = current_allocation; |
||
1370 | #endif |
||
1371 | for (i=2; i<argc; ++i) |
||
1372 | { |
||
1373 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
||
1374 | int k; |
||
1375 | #endif |
||
1376 | int kerror; |
||
1377 | cprintf("Testing %s:",argv[i]); |
||
1378 | kerror = test_one_file(argv[i], outname); |
||
1379 | if (kerror == 0) |
||
1380 | { |
||
1381 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
||
1382 | cprintf("\n PASS (%lu zero samples)\n",zero_samples); |
||
1383 | #else |
||
1384 | cprintf(" PASS\n"); |
||
1385 | #endif |
||
1386 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
||
1387 | for (k=0; k<256; k++) |
||
1388 | if(filters_used[k]) |
||
1389 | cprintf(" Filter %d was used %lu times\n", |
||
1390 | k,filters_used[k]); |
||
1391 | #endif |
||
1392 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
||
1393 | if(tIME_chunk_present != 0) |
||
1394 | cprintf(" tIME = %s\n",tIME_string); |
||
1395 | tIME_chunk_present = 0; |
||
1396 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
||
1397 | } |
||
1398 | else |
||
1399 | { |
||
1400 | cprintf(" FAIL\n"); |
||
1401 | ierror += kerror; |
||
1402 | } |
||
1403 | #ifdef PNG_USER_MEM_SUPPORTED |
||
1404 | if (allocation_now != current_allocation) |
||
1405 | cprintf("MEMORY ERROR: %d bytes lost\n", |
||
1406 | current_allocation-allocation_now); |
||
1407 | if (current_allocation != 0) |
||
1408 | { |
||
1409 | memory_infop pinfo = pinformation; |
||
1410 | |||
1411 | cprintf("MEMORY ERROR: %d bytes still allocated\n", |
||
1412 | current_allocation); |
||
1413 | while (pinfo != NULL) |
||
1414 | { |
||
1415 | cprintf(" %lu bytes at %x\n", pinfo->size, |
||
1416 | (unsigned int) pinfo->pointer); |
||
1417 | pinfo = pinfo->next; |
||
1418 | } |
||
1419 | } |
||
1420 | #endif |
||
1421 | } |
||
1422 | #ifdef PNG_USER_MEM_SUPPORTED |
||
1423 | cprintf(" Current memory allocation: %10d bytes\n", |
||
1424 | current_allocation); |
||
1425 | cprintf(" Maximum memory allocation: %10d bytes\n", |
||
1426 | maximum_allocation); |
||
1427 | cprintf(" Total memory allocation: %10d bytes\n", |
||
1428 | total_allocation); |
||
1429 | cprintf(" Number of allocations: %10d\n", |
||
1430 | num_allocations); |
||
1431 | #endif |
||
1432 | } |
||
1433 | else |
||
1434 | { |
||
1435 | int i; |
||
1436 | for (i=0; i<3; ++i) |
||
1437 | { |
||
1438 | int kerror; |
||
1439 | #ifdef PNG_USER_MEM_SUPPORTED |
||
1440 | int allocation_now = current_allocation; |
||
1441 | #endif |
||
1442 | if (i == 1) status_dots_requested = 1; |
||
1443 | else if(verbose == 0)status_dots_requested = 0; |
||
1444 | if (i == 0 || verbose == 1 || ierror != 0) |
||
1445 | cprintf("Testing %s:",inname); |
||
1446 | kerror = test_one_file(inname, outname); |
||
1447 | if(kerror == 0) |
||
1448 | { |
||
1449 | if(verbose == 1 || i == 2) |
||
1450 | { |
||
1451 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
||
1452 | int k; |
||
1453 | #endif |
||
1454 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
||
1455 | cprintf("\n PASS (%lu zero samples)\n",zero_samples); |
||
1456 | #else |
||
1457 | cprintf(" PASS\n"); |
||
1458 | #endif |
||
1459 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
||
1460 | for (k=0; k<256; k++) |
||
1461 | if(filters_used[k]) |
||
1462 | cprintf(" Filter %d was used %lu times\n", |
||
1463 | k,filters_used[k]); |
||
1464 | #endif |
||
1465 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
||
1466 | if(tIME_chunk_present != 0) |
||
1467 | cprintf(" tIME = %s\n",tIME_string); |
||
1468 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
||
1469 | } |
||
1470 | } |
||
1471 | else |
||
1472 | { |
||
1473 | if(verbose == 0 && i != 2) |
||
1474 | cprintf("Testing %s:",inname); |
||
1475 | cprintf(" FAIL\n"); |
||
1476 | ierror += kerror; |
||
1477 | } |
||
1478 | #ifdef PNG_USER_MEM_SUPPORTED |
||
1479 | if (allocation_now != current_allocation) |
||
1480 | cprintf("MEMORY ERROR: %d bytes lost\n", |
||
1481 | current_allocation-allocation_now); |
||
1482 | if (current_allocation != 0) |
||
1483 | { |
||
1484 | memory_infop pinfo = pinformation; |
||
1485 | |||
1486 | cprintf("MEMORY ERROR: %d bytes still allocated\n", |
||
1487 | current_allocation); |
||
1488 | while (pinfo != NULL) |
||
1489 | { |
||
1490 | cprintf(" %lu bytes at %x\n", |
||
1491 | pinfo->size, (unsigned int)pinfo->pointer); |
||
1492 | pinfo = pinfo->next; |
||
1493 | } |
||
1494 | } |
||
1495 | #endif |
||
1496 | } |
||
1497 | #ifdef PNG_USER_MEM_SUPPORTED |
||
1498 | cprintf(" Current memory allocation: %10d bytes\n", |
||
1499 | current_allocation); |
||
1500 | cprintf(" Maximum memory allocation: %10d bytes\n", |
||
1501 | maximum_allocation); |
||
1502 | cprintf(" Total memory allocation: %10d bytes\n", |
||
1503 | total_allocation); |
||
1504 | cprintf(" Number of allocations: %10d\n", |
||
1505 | num_allocations); |
||
1506 | #endif |
||
1507 | } |
||
1508 | |||
1509 | #ifdef PNGTEST_TIMING |
||
1510 | t_stop = (float)clock(); |
||
1511 | t_misc += (t_stop - t_start); |
||
1512 | t_start = t_stop; |
||
1513 | cprintf(" CPU time used = %.3f seconds", |
||
1514 | (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC); |
||
1515 | cprintf(" (decoding %.3f,\n", |
||
1516 | t_decode/(float)CLOCKS_PER_SEC); |
||
1517 | cprintf(" encoding %.3f ,", |
||
1518 | t_encode/(float)CLOCKS_PER_SEC); |
||
1519 | cprintf(" other %.3f seconds)\n\n", |
||
1520 | t_misc/(float)CLOCKS_PER_SEC); |
||
1521 | #endif |
||
1522 | |||
1523 | if (ierror == 0) |
||
1524 | cprintf("libpng passes test\n"); |
||
1525 | else |
||
1526 | cprintf("libpng FAILS test\n"); |
||
1527 | return (int)(ierror != 0); |
||
1528 | } |
||
1529 | |||
1530 | /* Generate a compiler error if there is an old png.h in the search path. */ |
||
1531 | typedef version_1_2_5 your_png_h_is_not_version_1_2_5; |