The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1 | |
| 2 | /* pngtest.c - a simple test program to test libpng |
| 3 | * |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 4 | * Last changed in libpng 1.2.37 [June 4, 2009] |
| 5 | * Copyright (c) 1998-2009 Glenn Randers-Pehrson |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 6 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
| 7 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
| 8 | * |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 9 | * This code is released under the libpng license. |
| 10 | * For conditions of distribution and use, see the disclaimer |
| 11 | * and license in png.h |
| 12 | * |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 13 | * This program reads in a PNG image, writes it out again, and then |
| 14 | * compares the two files. If the files are identical, this shows that |
| 15 | * the basic chunk handling, filtering, and (de)compression code is working |
| 16 | * properly. It does not currently test all of the transforms, although |
| 17 | * it probably should. |
| 18 | * |
| 19 | * The program will report "FAIL" in certain legitimate cases: |
| 20 | * 1) when the compression level or filter selection method is changed. |
| 21 | * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192. |
| 22 | * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks |
| 23 | * exist in the input file. |
| 24 | * 4) others not listed here... |
| 25 | * In these cases, it is best to check with another tool such as "pngcheck" |
| 26 | * to see what the differences between the two files are. |
| 27 | * |
| 28 | * If a filename is given on the command-line, then this file is used |
| 29 | * for the input, rather than the default "pngtest.png". This allows |
| 30 | * testing a wide variety of files easily. You can also test a number |
| 31 | * of files at once by typing "pngtest -m file1.png file2.png ..." |
| 32 | */ |
| 33 | |
| 34 | #include "png.h" |
| 35 | |
| 36 | #if defined(_WIN32_WCE) |
| 37 | # if _WIN32_WCE < 211 |
| 38 | __error__ (f|w)printf functions are not supported on old WindowsCE.; |
| 39 | # endif |
| 40 | # include <windows.h> |
| 41 | # include <stdlib.h> |
| 42 | # define READFILE(file, data, length, check) \ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 43 | if (ReadFile(file, data, length, &check, NULL)) check = 0 |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 44 | # define WRITEFILE(file, data, length, check)) \ |
| 45 | if (WriteFile(file, data, length, &check, NULL)) check = 0 |
| 46 | # define FCLOSE(file) CloseHandle(file) |
| 47 | #else |
| 48 | # include <stdio.h> |
| 49 | # include <stdlib.h> |
| 50 | # define READFILE(file, data, length, check) \ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 51 | check=(png_size_t)fread(data, (png_size_t)1, length, file) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 52 | # define WRITEFILE(file, data, length, check) \ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 53 | check=(png_size_t)fwrite(data, (png_size_t)1, length, file) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 54 | # define FCLOSE(file) fclose(file) |
| 55 | #endif |
| 56 | |
| 57 | #if defined(PNG_NO_STDIO) |
| 58 | # if defined(_WIN32_WCE) |
| 59 | typedef HANDLE png_FILE_p; |
| 60 | # else |
| 61 | typedef FILE * png_FILE_p; |
| 62 | # endif |
| 63 | #endif |
| 64 | |
| 65 | /* Makes pngtest verbose so we can find problems (needs to be before png.h) */ |
| 66 | #ifndef PNG_DEBUG |
| 67 | # define PNG_DEBUG 0 |
| 68 | #endif |
| 69 | |
| 70 | #if !PNG_DEBUG |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 71 | # define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 72 | #endif |
| 73 | |
| 74 | /* Turn on CPU timing |
| 75 | #define PNGTEST_TIMING |
| 76 | */ |
| 77 | |
| 78 | #ifdef PNG_NO_FLOATING_POINT_SUPPORTED |
| 79 | #undef PNGTEST_TIMING |
| 80 | #endif |
| 81 | |
| 82 | #ifdef PNGTEST_TIMING |
| 83 | static float t_start, t_stop, t_decode, t_encode, t_misc; |
| 84 | #include <time.h> |
| 85 | #endif |
| 86 | |
| 87 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 88 | #define PNG_tIME_STRING_LENGTH 29 |
| 89 | static int tIME_chunk_present = 0; |
| 90 | static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present"; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 91 | #endif |
| 92 | |
| 93 | static int verbose = 0; |
| 94 | |
| 95 | int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname)); |
| 96 | |
| 97 | #ifdef __TURBOC__ |
| 98 | #include <mem.h> |
| 99 | #endif |
| 100 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 101 | /* Defined so I can write to a file on gui/windowing platforms */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 102 | /* #define STDERR stderr */ |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 103 | #define STDERR stdout /* For DOS */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 104 | |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 105 | /* In case a system header (e.g., on AIX) defined jmpbuf */ |
| 106 | #ifdef jmpbuf |
| 107 | # undef jmpbuf |
| 108 | #endif |
| 109 | |
| 110 | /* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */ |
| 111 | #ifndef png_jmpbuf |
| 112 | # define png_jmpbuf(png_ptr) png_ptr->jmpbuf |
| 113 | #endif |
| 114 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 115 | /* Example of using row callbacks to make a simple progress meter */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 116 | static int status_pass = 1; |
| 117 | static int status_dots_requested = 0; |
| 118 | static int status_dots = 1; |
| 119 | |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 120 | void |
| 121 | #ifdef PNG_1_0_X |
| 122 | PNGAPI |
| 123 | #endif |
| 124 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass); |
| 125 | void |
| 126 | #ifdef PNG_1_0_X |
| 127 | PNGAPI |
| 128 | #endif |
| 129 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
| 130 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 131 | if (png_ptr == NULL || row_number > PNG_UINT_31_MAX) |
| 132 | return; |
| 133 | if (status_pass != pass) |
| 134 | { |
| 135 | fprintf(stdout, "\n Pass %d: ", pass); |
| 136 | status_pass = pass; |
| 137 | status_dots = 31; |
| 138 | } |
| 139 | status_dots--; |
| 140 | if (status_dots == 0) |
| 141 | { |
| 142 | fprintf(stdout, "\n "); |
| 143 | status_dots=30; |
| 144 | } |
| 145 | fprintf(stdout, "r"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | void |
| 149 | #ifdef PNG_1_0_X |
| 150 | PNGAPI |
| 151 | #endif |
| 152 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass); |
| 153 | void |
| 154 | #ifdef PNG_1_0_X |
| 155 | PNGAPI |
| 156 | #endif |
| 157 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
| 158 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 159 | if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) |
| 160 | return; |
| 161 | fprintf(stdout, "w"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 162 | } |
| 163 | |
| 164 | |
| 165 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
| 166 | /* Example of using user transform callback (we don't transform anything, |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 167 | * but merely examine the row filters. We set this to 256 rather than |
| 168 | * 5 in case illegal filter values are present.) |
| 169 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 170 | static png_uint_32 filters_used[256]; |
| 171 | void |
| 172 | #ifdef PNG_1_0_X |
| 173 | PNGAPI |
| 174 | #endif |
| 175 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data); |
| 176 | void |
| 177 | #ifdef PNG_1_0_X |
| 178 | PNGAPI |
| 179 | #endif |
| 180 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
| 181 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 182 | if (png_ptr != NULL && row_info != NULL) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 183 | ++filters_used[*(data - 1)]; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 184 | } |
| 185 | #endif |
| 186 | |
| 187 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 188 | /* Example of using user transform callback (we don't transform anything, |
| 189 | * but merely count the zero samples) |
| 190 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 191 | |
| 192 | static png_uint_32 zero_samples; |
| 193 | |
| 194 | void |
| 195 | #ifdef PNG_1_0_X |
| 196 | PNGAPI |
| 197 | #endif |
| 198 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data); |
| 199 | void |
| 200 | #ifdef PNG_1_0_X |
| 201 | PNGAPI |
| 202 | #endif |
| 203 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
| 204 | { |
| 205 | png_bytep dp = data; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 206 | if (png_ptr == NULL)return; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 207 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 208 | /* Contents of row_info: |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 209 | * png_uint_32 width width of row |
| 210 | * png_uint_32 rowbytes number of bytes in row |
| 211 | * png_byte color_type color type of pixels |
| 212 | * png_byte bit_depth bit depth of samples |
| 213 | * png_byte channels number of channels (1-4) |
| 214 | * png_byte pixel_depth bits per pixel (depth*channels) |
| 215 | */ |
| 216 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 217 | /* Counts the number of zero samples (or zero pixels if color_type is 3 */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 218 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 219 | if (row_info->color_type == 0 || row_info->color_type == 3) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 220 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 221 | int pos = 0; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 222 | png_uint_32 n, nstop; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 223 | for (n = 0, nstop=row_info->width; n<nstop; n++) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 224 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 225 | if (row_info->bit_depth == 1) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 226 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 227 | if (((*dp << pos++ ) & 0x80) == 0) |
| 228 | zero_samples++; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 229 | if (pos == 8) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 230 | { |
| 231 | pos = 0; |
| 232 | dp++; |
| 233 | } |
| 234 | } |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 235 | if (row_info->bit_depth == 2) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 236 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 237 | if (((*dp << (pos+=2)) & 0xc0) == 0) |
| 238 | zero_samples++; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 239 | if (pos == 8) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 240 | { |
| 241 | pos = 0; |
| 242 | dp++; |
| 243 | } |
| 244 | } |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 245 | if (row_info->bit_depth == 4) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 246 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 247 | if (((*dp << (pos+=4)) & 0xf0) == 0) |
| 248 | zero_samples++; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 249 | if (pos == 8) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 250 | { |
| 251 | pos = 0; |
| 252 | dp++; |
| 253 | } |
| 254 | } |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 255 | if (row_info->bit_depth == 8) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 256 | if (*dp++ == 0) |
| 257 | zero_samples++; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 258 | if (row_info->bit_depth == 16) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 259 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 260 | if ((*dp | *(dp+1)) == 0) |
| 261 | zero_samples++; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 262 | dp+=2; |
| 263 | } |
| 264 | } |
| 265 | } |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 266 | else /* Other color types */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 267 | { |
| 268 | png_uint_32 n, nstop; |
| 269 | int channel; |
| 270 | int color_channels = row_info->channels; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 271 | if (row_info->color_type > 3)color_channels--; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 272 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 273 | for (n = 0, nstop=row_info->width; n<nstop; n++) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 274 | { |
| 275 | for (channel = 0; channel < color_channels; channel++) |
| 276 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 277 | if (row_info->bit_depth == 8) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 278 | if (*dp++ == 0) |
| 279 | zero_samples++; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 280 | if (row_info->bit_depth == 16) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 281 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 282 | if ((*dp | *(dp+1)) == 0) |
| 283 | zero_samples++; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 284 | dp+=2; |
| 285 | } |
| 286 | } |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 287 | if (row_info->color_type > 3) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 288 | { |
| 289 | dp++; |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 290 | if (row_info->bit_depth == 16) |
| 291 | dp++; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 292 | } |
| 293 | } |
| 294 | } |
| 295 | } |
| 296 | #endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ |
| 297 | |
| 298 | static int wrote_question = 0; |
| 299 | |
| 300 | #if defined(PNG_NO_STDIO) |
| 301 | /* START of code to validate stdio-free compilation */ |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 302 | /* These copies of the default read/write functions come from pngrio.c and |
| 303 | * pngwio.c. They allow "don't include stdio" testing of the library. |
| 304 | * This is the function that does the actual reading of data. If you are |
| 305 | * not reading from a standard C stream, you should create a replacement |
| 306 | * read_data function and use it at run time with png_set_read_fn(), rather |
| 307 | * than changing the library. |
| 308 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 309 | |
| 310 | #ifndef USE_FAR_KEYWORD |
| 311 | static void |
| 312 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 313 | { |
| 314 | png_size_t check; |
| 315 | |
| 316 | /* fread() returns 0 on error, so it is OK to store this in a png_size_t |
| 317 | * instead of an int, which is what fread() actually returns. |
| 318 | */ |
| 319 | READFILE((png_FILE_p)png_ptr->io_ptr, data, length, check); |
| 320 | |
| 321 | if (check != length) |
| 322 | { |
| 323 | png_error(png_ptr, "Read Error!"); |
| 324 | } |
| 325 | } |
| 326 | #else |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 327 | /* This is the model-independent version. Since the standard I/O library |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 328 | can't handle far buffers in the medium and small models, we have to copy |
| 329 | the data. |
| 330 | */ |
| 331 | |
| 332 | #define NEAR_BUF_SIZE 1024 |
| 333 | #define MIN(a,b) (a <= b ? a : b) |
| 334 | |
| 335 | static void |
| 336 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 337 | { |
| 338 | int check; |
| 339 | png_byte *n_data; |
| 340 | png_FILE_p io_ptr; |
| 341 | |
| 342 | /* Check if data really is near. If so, use usual code. */ |
| 343 | n_data = (png_byte *)CVT_PTR_NOCHECK(data); |
| 344 | io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); |
| 345 | if ((png_bytep)n_data == data) |
| 346 | { |
| 347 | READFILE(io_ptr, n_data, length, check); |
| 348 | } |
| 349 | else |
| 350 | { |
| 351 | png_byte buf[NEAR_BUF_SIZE]; |
| 352 | png_size_t read, remaining, err; |
| 353 | check = 0; |
| 354 | remaining = length; |
| 355 | do |
| 356 | { |
| 357 | read = MIN(NEAR_BUF_SIZE, remaining); |
| 358 | READFILE(io_ptr, buf, 1, err); |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 359 | png_memcpy(data, buf, read); /* Copy far buffer to near buffer */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 360 | if (err != read) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 361 | break; |
| 362 | else |
| 363 | check += err; |
| 364 | data += read; |
| 365 | remaining -= read; |
| 366 | } |
| 367 | while (remaining != 0); |
| 368 | } |
| 369 | if (check != length) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 370 | png_error(png_ptr, "read Error"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 371 | } |
| 372 | #endif /* USE_FAR_KEYWORD */ |
| 373 | |
| 374 | #if defined(PNG_WRITE_FLUSH_SUPPORTED) |
| 375 | static void |
| 376 | pngtest_flush(png_structp png_ptr) |
| 377 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 378 | /* Do nothing; fflush() is said to be just a waste of energy. */ |
| 379 | png_ptr = png_ptr; /* Stifle compiler warning */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 380 | } |
| 381 | #endif |
| 382 | |
| 383 | /* This is the function that does the actual writing of data. If you are |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 384 | * not writing to a standard C stream, you should create a replacement |
| 385 | * write_data function and use it at run time with png_set_write_fn(), rather |
| 386 | * than changing the library. |
| 387 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 388 | #ifndef USE_FAR_KEYWORD |
| 389 | static void |
| 390 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 391 | { |
| 392 | png_uint_32 check; |
| 393 | |
| 394 | WRITEFILE((png_FILE_p)png_ptr->io_ptr, data, length, check); |
| 395 | if (check != length) |
| 396 | { |
| 397 | png_error(png_ptr, "Write Error"); |
| 398 | } |
| 399 | } |
| 400 | #else |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 401 | /* This is the model-independent version. Since the standard I/O library |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 402 | can't handle far buffers in the medium and small models, we have to copy |
| 403 | the data. |
| 404 | */ |
| 405 | |
| 406 | #define NEAR_BUF_SIZE 1024 |
| 407 | #define MIN(a,b) (a <= b ? a : b) |
| 408 | |
| 409 | static void |
| 410 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 411 | { |
| 412 | png_uint_32 check; |
| 413 | png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ |
| 414 | png_FILE_p io_ptr; |
| 415 | |
| 416 | /* Check if data really is near. If so, use usual code. */ |
| 417 | near_data = (png_byte *)CVT_PTR_NOCHECK(data); |
| 418 | io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); |
| 419 | if ((png_bytep)near_data == data) |
| 420 | { |
| 421 | WRITEFILE(io_ptr, near_data, length, check); |
| 422 | } |
| 423 | else |
| 424 | { |
| 425 | png_byte buf[NEAR_BUF_SIZE]; |
| 426 | png_size_t written, remaining, err; |
| 427 | check = 0; |
| 428 | remaining = length; |
| 429 | do |
| 430 | { |
| 431 | written = MIN(NEAR_BUF_SIZE, remaining); |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 432 | png_memcpy(buf, data, written); /* Copy far buffer to near buffer */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 433 | WRITEFILE(io_ptr, buf, written, err); |
| 434 | if (err != written) |
| 435 | break; |
| 436 | else |
| 437 | check += err; |
| 438 | data += written; |
| 439 | remaining -= written; |
| 440 | } |
| 441 | while (remaining != 0); |
| 442 | } |
| 443 | if (check != length) |
| 444 | { |
| 445 | png_error(png_ptr, "Write Error"); |
| 446 | } |
| 447 | } |
| 448 | #endif /* USE_FAR_KEYWORD */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 449 | |
| 450 | /* This function is called when there is a warning, but the library thinks |
| 451 | * it can continue anyway. Replacement functions don't have to do anything |
| 452 | * here if you don't want to. In the default configuration, png_ptr is |
| 453 | * not used, but it is passed in case it may be useful. |
| 454 | */ |
| 455 | static void |
| 456 | pngtest_warning(png_structp png_ptr, png_const_charp message) |
| 457 | { |
| 458 | PNG_CONST char *name = "UNKNOWN (ERROR!)"; |
| 459 | if (png_ptr != NULL && png_ptr->error_ptr != NULL) |
| 460 | name = png_ptr->error_ptr; |
| 461 | fprintf(STDERR, "%s: libpng warning: %s\n", name, message); |
| 462 | } |
| 463 | |
| 464 | /* This is the default error handling function. Note that replacements for |
| 465 | * this function MUST NOT RETURN, or the program will likely crash. This |
| 466 | * function is used by default, or if the program supplies NULL for the |
| 467 | * error function pointer in png_set_error_fn(). |
| 468 | */ |
| 469 | static void |
| 470 | pngtest_error(png_structp png_ptr, png_const_charp message) |
| 471 | { |
| 472 | pngtest_warning(png_ptr, message); |
| 473 | /* We can return because png_error calls the default handler, which is |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 474 | * actually OK in this case. |
| 475 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 476 | } |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 477 | #endif /* PNG_NO_STDIO */ |
| 478 | /* END of code to validate stdio-free compilation */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 479 | |
| 480 | /* START of code to validate memory allocation and deallocation */ |
| 481 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 482 | |
| 483 | /* Allocate memory. For reasonable files, size should never exceed |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 484 | * 64K. However, zlib may allocate more then 64K if you don't tell |
| 485 | * it not to. See zconf.h and png.h for more information. zlib does |
| 486 | * need to allocate exactly 64K, so whatever you call here must |
| 487 | * have the ability to do that. |
| 488 | * |
| 489 | * This piece of code can be compiled to validate max 64K allocations |
| 490 | * by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. |
| 491 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 492 | typedef struct memory_information |
| 493 | { |
| 494 | png_uint_32 size; |
| 495 | png_voidp pointer; |
| 496 | struct memory_information FAR *next; |
| 497 | } memory_information; |
| 498 | typedef memory_information FAR *memory_infop; |
| 499 | |
| 500 | static memory_infop pinformation = NULL; |
| 501 | static int current_allocation = 0; |
| 502 | static int maximum_allocation = 0; |
| 503 | static int total_allocation = 0; |
| 504 | static int num_allocations = 0; |
| 505 | |
| 506 | png_voidp png_debug_malloc PNGARG((png_structp png_ptr, png_uint_32 size)); |
| 507 | void png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr)); |
| 508 | |
| 509 | png_voidp |
| 510 | png_debug_malloc(png_structp png_ptr, png_uint_32 size) |
| 511 | { |
| 512 | |
| 513 | /* png_malloc has already tested for NULL; png_create_struct calls |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 514 | * png_debug_malloc directly, with png_ptr == NULL which is OK |
| 515 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 516 | |
| 517 | if (size == 0) |
| 518 | return (NULL); |
| 519 | |
| 520 | /* This calls the library allocator twice, once to get the requested |
| 521 | buffer and once to get a new free list entry. */ |
| 522 | { |
| 523 | /* Disable malloc_fn and free_fn */ |
| 524 | memory_infop pinfo; |
| 525 | png_set_mem_fn(png_ptr, NULL, NULL, NULL); |
| 526 | pinfo = (memory_infop)png_malloc(png_ptr, |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 527 | (png_uint_32)png_sizeof(*pinfo)); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 528 | pinfo->size = size; |
| 529 | current_allocation += size; |
| 530 | total_allocation += size; |
| 531 | num_allocations ++; |
| 532 | if (current_allocation > maximum_allocation) |
| 533 | maximum_allocation = current_allocation; |
| 534 | pinfo->pointer = (png_voidp)png_malloc(png_ptr, size); |
| 535 | /* Restore malloc_fn and free_fn */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 536 | png_set_mem_fn(png_ptr, |
| 537 | png_voidp_NULL, (png_malloc_ptr)png_debug_malloc, |
| 538 | (png_free_ptr)png_debug_free); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 539 | if (size != 0 && pinfo->pointer == NULL) |
| 540 | { |
| 541 | current_allocation -= size; |
| 542 | total_allocation -= size; |
| 543 | png_error(png_ptr, |
| 544 | "out of memory in pngtest->png_debug_malloc."); |
| 545 | } |
| 546 | pinfo->next = pinformation; |
| 547 | pinformation = pinfo; |
| 548 | /* Make sure the caller isn't assuming zeroed memory. */ |
| 549 | png_memset(pinfo->pointer, 0xdd, pinfo->size); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 550 | if (verbose) |
| 551 | printf("png_malloc %lu bytes at %x\n", (unsigned long)size, |
| 552 | pinfo->pointer); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 553 | return (png_voidp)(pinfo->pointer); |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | /* Free a pointer. It is removed from the list at the same time. */ |
| 558 | void |
| 559 | png_debug_free(png_structp png_ptr, png_voidp ptr) |
| 560 | { |
| 561 | if (png_ptr == NULL) |
| 562 | fprintf(STDERR, "NULL pointer to png_debug_free.\n"); |
| 563 | if (ptr == 0) |
| 564 | { |
| 565 | #if 0 /* This happens all the time. */ |
| 566 | fprintf(STDERR, "WARNING: freeing NULL pointer\n"); |
| 567 | #endif |
| 568 | return; |
| 569 | } |
| 570 | |
| 571 | /* Unlink the element from the list. */ |
| 572 | { |
| 573 | memory_infop FAR *ppinfo = &pinformation; |
| 574 | for (;;) |
| 575 | { |
| 576 | memory_infop pinfo = *ppinfo; |
| 577 | if (pinfo->pointer == ptr) |
| 578 | { |
| 579 | *ppinfo = pinfo->next; |
| 580 | current_allocation -= pinfo->size; |
| 581 | if (current_allocation < 0) |
| 582 | fprintf(STDERR, "Duplicate free of memory\n"); |
| 583 | /* We must free the list element too, but first kill |
| 584 | the memory that is to be freed. */ |
| 585 | png_memset(ptr, 0x55, pinfo->size); |
| 586 | png_free_default(png_ptr, pinfo); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 587 | pinfo = NULL; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 588 | break; |
| 589 | } |
| 590 | if (pinfo->next == NULL) |
| 591 | { |
| 592 | fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr); |
| 593 | break; |
| 594 | } |
| 595 | ppinfo = &pinfo->next; |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | /* Finally free the data. */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 600 | if (verbose) |
| 601 | printf("Freeing %x\n", ptr); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 602 | png_free_default(png_ptr, ptr); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 603 | ptr = NULL; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 604 | } |
| 605 | #endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */ |
| 606 | /* END of code to test memory allocation/deallocation */ |
| 607 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 608 | |
| 609 | /* Demonstration of user chunk support of the sTER and vpAg chunks */ |
| 610 | #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) |
| 611 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 612 | /* (sTER is a public chunk not yet known by libpng. vpAg is a private |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 613 | chunk used in ImageMagick to store "virtual page" size). */ |
| 614 | |
| 615 | static png_uint_32 user_chunk_data[4]; |
| 616 | |
| 617 | /* 0: sTER mode + 1 |
| 618 | * 1: vpAg width |
| 619 | * 2: vpAg height |
| 620 | * 3: vpAg units |
| 621 | */ |
| 622 | |
| 623 | static int read_user_chunk_callback(png_struct *png_ptr, |
| 624 | png_unknown_chunkp chunk) |
| 625 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 626 | png_uint_32 |
| 627 | *my_user_chunk_data; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 628 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 629 | /* Return one of the following: |
| 630 | * return (-n); chunk had an error |
| 631 | * return (0); did not recognize |
| 632 | * return (n); success |
| 633 | * |
| 634 | * The unknown chunk structure contains the chunk data: |
| 635 | * png_byte name[5]; |
| 636 | * png_byte *data; |
| 637 | * png_size_t size; |
| 638 | * |
| 639 | * Note that libpng has already taken care of the CRC handling. |
| 640 | */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 641 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 642 | if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */ |
| 643 | chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */ |
| 644 | { |
| 645 | /* Found sTER chunk */ |
| 646 | if (chunk->size != 1) |
| 647 | return (-1); /* Error return */ |
| 648 | if (chunk->data[0] != 0 && chunk->data[0] != 1) |
| 649 | return (-1); /* Invalid mode */ |
| 650 | my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr); |
| 651 | my_user_chunk_data[0]=chunk->data[0]+1; |
| 652 | return (1); |
| 653 | } |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 654 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 655 | if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */ |
| 656 | chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */ |
| 657 | return (0); /* Did not recognize */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 658 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 659 | /* Found ImageMagick vpAg chunk */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 660 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 661 | if (chunk->size != 9) |
| 662 | return (-1); /* Error return */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 663 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 664 | my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 665 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 666 | my_user_chunk_data[1]=png_get_uint_31(png_ptr, chunk->data); |
| 667 | my_user_chunk_data[2]=png_get_uint_31(png_ptr, chunk->data + 4); |
| 668 | my_user_chunk_data[3]=(png_uint_32)chunk->data[8]; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 669 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 670 | return (1); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 671 | |
| 672 | } |
| 673 | #endif |
| 674 | /* END of code to demonstrate user chunk support */ |
| 675 | |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 676 | /* Test one file */ |
| 677 | int |
| 678 | test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) |
| 679 | { |
| 680 | static png_FILE_p fpin; |
| 681 | static png_FILE_p fpout; /* "static" prevents setjmp corruption */ |
| 682 | png_structp read_ptr; |
| 683 | png_infop read_info_ptr, end_info_ptr; |
| 684 | #ifdef PNG_WRITE_SUPPORTED |
| 685 | png_structp write_ptr; |
| 686 | png_infop write_info_ptr; |
| 687 | png_infop write_end_info_ptr; |
| 688 | #else |
| 689 | png_structp write_ptr = NULL; |
| 690 | png_infop write_info_ptr = NULL; |
| 691 | png_infop write_end_info_ptr = NULL; |
| 692 | #endif |
| 693 | png_bytep row_buf; |
| 694 | png_uint_32 y; |
| 695 | png_uint_32 width, height; |
| 696 | int num_pass, pass; |
| 697 | int bit_depth, color_type; |
| 698 | #ifdef PNG_SETJMP_SUPPORTED |
| 699 | #ifdef USE_FAR_KEYWORD |
| 700 | jmp_buf jmpbuf; |
| 701 | #endif |
| 702 | #endif |
| 703 | |
| 704 | #if defined(_WIN32_WCE) |
| 705 | TCHAR path[MAX_PATH]; |
| 706 | #endif |
| 707 | char inbuf[256], outbuf[256]; |
| 708 | |
| 709 | row_buf = NULL; |
| 710 | |
| 711 | #if defined(_WIN32_WCE) |
| 712 | MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH); |
| 713 | if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) |
| 714 | #else |
| 715 | if ((fpin = fopen(inname, "rb")) == NULL) |
| 716 | #endif |
| 717 | { |
| 718 | fprintf(STDERR, "Could not find input file %s\n", inname); |
| 719 | return (1); |
| 720 | } |
| 721 | |
| 722 | #if defined(_WIN32_WCE) |
| 723 | MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH); |
| 724 | if ((fpout = CreateFile(path, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL)) == INVALID_HANDLE_VALUE) |
| 725 | #else |
| 726 | if ((fpout = fopen(outname, "wb")) == NULL) |
| 727 | #endif |
| 728 | { |
| 729 | fprintf(STDERR, "Could not open output file %s\n", outname); |
| 730 | FCLOSE(fpin); |
| 731 | return (1); |
| 732 | } |
| 733 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 734 | png_debug(0, "Allocating read and write structures"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 735 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 736 | read_ptr = |
| 737 | png_create_read_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 738 | png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL, |
| 739 | (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free); |
| 740 | #else |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 741 | read_ptr = |
| 742 | png_create_read_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 743 | png_error_ptr_NULL, png_error_ptr_NULL); |
| 744 | #endif |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 745 | #if defined(PNG_NO_STDIO) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 746 | png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error, |
| 747 | pngtest_warning); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 748 | #endif |
| 749 | |
| 750 | #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 751 | user_chunk_data[0] = 0; |
| 752 | user_chunk_data[1] = 0; |
| 753 | user_chunk_data[2] = 0; |
| 754 | user_chunk_data[3] = 0; |
| 755 | png_set_read_user_chunk_fn(read_ptr, user_chunk_data, |
| 756 | read_user_chunk_callback); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 757 | |
| 758 | #endif |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 759 | #ifdef PNG_WRITE_SUPPORTED |
| 760 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 761 | write_ptr = |
| 762 | png_create_write_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 763 | png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL, |
| 764 | (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free); |
| 765 | #else |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 766 | write_ptr = |
| 767 | png_create_write_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 768 | png_error_ptr_NULL, png_error_ptr_NULL); |
| 769 | #endif |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 770 | #if defined(PNG_NO_STDIO) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 771 | png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error, |
| 772 | pngtest_warning); |
| 773 | #endif |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 774 | #endif |
| 775 | png_debug(0, "Allocating read_info, write_info and end_info structures"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 776 | read_info_ptr = png_create_info_struct(read_ptr); |
| 777 | end_info_ptr = png_create_info_struct(read_ptr); |
| 778 | #ifdef PNG_WRITE_SUPPORTED |
| 779 | write_info_ptr = png_create_info_struct(write_ptr); |
| 780 | write_end_info_ptr = png_create_info_struct(write_ptr); |
| 781 | #endif |
| 782 | |
| 783 | #ifdef PNG_SETJMP_SUPPORTED |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 784 | png_debug(0, "Setting jmpbuf for read struct"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 785 | #ifdef USE_FAR_KEYWORD |
| 786 | if (setjmp(jmpbuf)) |
| 787 | #else |
| 788 | if (setjmp(png_jmpbuf(read_ptr))) |
| 789 | #endif |
| 790 | { |
| 791 | fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname); |
| 792 | png_free(read_ptr, row_buf); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 793 | row_buf = NULL; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 794 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
| 795 | #ifdef PNG_WRITE_SUPPORTED |
| 796 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
| 797 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 798 | #endif |
| 799 | FCLOSE(fpin); |
| 800 | FCLOSE(fpout); |
| 801 | return (1); |
| 802 | } |
| 803 | #ifdef USE_FAR_KEYWORD |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 804 | png_memcpy(png_jmpbuf(read_ptr), jmpbuf, png_sizeof(jmp_buf)); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 805 | #endif |
| 806 | |
| 807 | #ifdef PNG_WRITE_SUPPORTED |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 808 | png_debug(0, "Setting jmpbuf for write struct"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 809 | #ifdef USE_FAR_KEYWORD |
| 810 | if (setjmp(jmpbuf)) |
| 811 | #else |
| 812 | if (setjmp(png_jmpbuf(write_ptr))) |
| 813 | #endif |
| 814 | { |
| 815 | fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname); |
| 816 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
| 817 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
| 818 | #ifdef PNG_WRITE_SUPPORTED |
| 819 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 820 | #endif |
| 821 | FCLOSE(fpin); |
| 822 | FCLOSE(fpout); |
| 823 | return (1); |
| 824 | } |
| 825 | #ifdef USE_FAR_KEYWORD |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 826 | png_memcpy(png_jmpbuf(write_ptr), jmpbuf, png_sizeof(jmp_buf)); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 827 | #endif |
| 828 | #endif |
| 829 | #endif |
| 830 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 831 | png_debug(0, "Initializing input and output streams"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 832 | #if !defined(PNG_NO_STDIO) |
| 833 | png_init_io(read_ptr, fpin); |
| 834 | # ifdef PNG_WRITE_SUPPORTED |
| 835 | png_init_io(write_ptr, fpout); |
| 836 | # endif |
| 837 | #else |
| 838 | png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data); |
| 839 | # ifdef PNG_WRITE_SUPPORTED |
| 840 | png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data, |
| 841 | # if defined(PNG_WRITE_FLUSH_SUPPORTED) |
| 842 | pngtest_flush); |
| 843 | # else |
| 844 | NULL); |
| 845 | # endif |
| 846 | # endif |
| 847 | #endif |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 848 | if (status_dots_requested == 1) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 849 | { |
| 850 | #ifdef PNG_WRITE_SUPPORTED |
| 851 | png_set_write_status_fn(write_ptr, write_row_callback); |
| 852 | #endif |
| 853 | png_set_read_status_fn(read_ptr, read_row_callback); |
| 854 | } |
| 855 | else |
| 856 | { |
| 857 | #ifdef PNG_WRITE_SUPPORTED |
| 858 | png_set_write_status_fn(write_ptr, png_write_status_ptr_NULL); |
| 859 | #endif |
| 860 | png_set_read_status_fn(read_ptr, png_read_status_ptr_NULL); |
| 861 | } |
| 862 | |
| 863 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
| 864 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 865 | int i; |
| 866 | for (i = 0; i<256; i++) |
| 867 | filters_used[i] = 0; |
| 868 | png_set_read_user_transform_fn(read_ptr, count_filters); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 869 | } |
| 870 | #endif |
| 871 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 872 | zero_samples = 0; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 873 | png_set_write_user_transform_fn(write_ptr, count_zero_samples); |
| 874 | #endif |
| 875 | |
| 876 | #if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
| 877 | # ifndef PNG_HANDLE_CHUNK_ALWAYS |
| 878 | # define PNG_HANDLE_CHUNK_ALWAYS 3 |
| 879 | # endif |
| 880 | png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS, |
| 881 | png_bytep_NULL, 0); |
| 882 | #endif |
| 883 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
| 884 | # ifndef PNG_HANDLE_CHUNK_IF_SAFE |
| 885 | # define PNG_HANDLE_CHUNK_IF_SAFE 2 |
| 886 | # endif |
| 887 | png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_IF_SAFE, |
| 888 | png_bytep_NULL, 0); |
| 889 | #endif |
| 890 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 891 | png_debug(0, "Reading info struct"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 892 | png_read_info(read_ptr, read_info_ptr); |
| 893 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 894 | png_debug(0, "Transferring info struct"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 895 | { |
| 896 | int interlace_type, compression_type, filter_type; |
| 897 | |
| 898 | if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, |
| 899 | &color_type, &interlace_type, &compression_type, &filter_type)) |
| 900 | { |
| 901 | png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, |
| 902 | #if defined(PNG_WRITE_INTERLACING_SUPPORTED) |
| 903 | color_type, interlace_type, compression_type, filter_type); |
| 904 | #else |
| 905 | color_type, PNG_INTERLACE_NONE, compression_type, filter_type); |
| 906 | #endif |
| 907 | } |
| 908 | } |
| 909 | #if defined(PNG_FIXED_POINT_SUPPORTED) |
| 910 | #if defined(PNG_cHRM_SUPPORTED) |
| 911 | { |
| 912 | png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x, |
| 913 | blue_y; |
| 914 | if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, |
| 915 | &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
| 916 | { |
| 917 | png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x, |
| 918 | red_y, green_x, green_y, blue_x, blue_y); |
| 919 | } |
| 920 | } |
| 921 | #endif |
| 922 | #if defined(PNG_gAMA_SUPPORTED) |
| 923 | { |
| 924 | png_fixed_point gamma; |
| 925 | |
| 926 | if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 927 | png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 928 | } |
| 929 | #endif |
| 930 | #else /* Use floating point versions */ |
| 931 | #if defined(PNG_FLOATING_POINT_SUPPORTED) |
| 932 | #if defined(PNG_cHRM_SUPPORTED) |
| 933 | { |
| 934 | double white_x, white_y, red_x, red_y, green_x, green_y, blue_x, |
| 935 | blue_y; |
| 936 | if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, |
| 937 | &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
| 938 | { |
| 939 | png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, |
| 940 | red_y, green_x, green_y, blue_x, blue_y); |
| 941 | } |
| 942 | } |
| 943 | #endif |
| 944 | #if defined(PNG_gAMA_SUPPORTED) |
| 945 | { |
| 946 | double gamma; |
| 947 | |
| 948 | if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 949 | png_set_gAMA(write_ptr, write_info_ptr, gamma); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 950 | } |
| 951 | #endif |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 952 | #endif /* Floating point */ |
| 953 | #endif /* Fixed point */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 954 | #if defined(PNG_iCCP_SUPPORTED) |
| 955 | { |
| 956 | png_charp name; |
| 957 | png_charp profile; |
| 958 | png_uint_32 proflen; |
| 959 | int compression_type; |
| 960 | |
| 961 | if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type, |
| 962 | &profile, &proflen)) |
| 963 | { |
| 964 | png_set_iCCP(write_ptr, write_info_ptr, name, compression_type, |
| 965 | profile, proflen); |
| 966 | } |
| 967 | } |
| 968 | #endif |
| 969 | #if defined(PNG_sRGB_SUPPORTED) |
| 970 | { |
| 971 | int intent; |
| 972 | |
| 973 | if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 974 | png_set_sRGB(write_ptr, write_info_ptr, intent); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 975 | } |
| 976 | #endif |
| 977 | { |
| 978 | png_colorp palette; |
| 979 | int num_palette; |
| 980 | |
| 981 | if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 982 | png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 983 | } |
| 984 | #if defined(PNG_bKGD_SUPPORTED) |
| 985 | { |
| 986 | png_color_16p background; |
| 987 | |
| 988 | if (png_get_bKGD(read_ptr, read_info_ptr, &background)) |
| 989 | { |
| 990 | png_set_bKGD(write_ptr, write_info_ptr, background); |
| 991 | } |
| 992 | } |
| 993 | #endif |
| 994 | #if defined(PNG_hIST_SUPPORTED) |
| 995 | { |
| 996 | png_uint_16p hist; |
| 997 | |
| 998 | if (png_get_hIST(read_ptr, read_info_ptr, &hist)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 999 | png_set_hIST(write_ptr, write_info_ptr, hist); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1000 | } |
| 1001 | #endif |
| 1002 | #if defined(PNG_oFFs_SUPPORTED) |
| 1003 | { |
| 1004 | png_int_32 offset_x, offset_y; |
| 1005 | int unit_type; |
| 1006 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1007 | if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y, |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1008 | &unit_type)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1009 | { |
| 1010 | png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); |
| 1011 | } |
| 1012 | } |
| 1013 | #endif |
| 1014 | #if defined(PNG_pCAL_SUPPORTED) |
| 1015 | { |
| 1016 | png_charp purpose, units; |
| 1017 | png_charpp params; |
| 1018 | png_int_32 X0, X1; |
| 1019 | int type, nparams; |
| 1020 | |
| 1021 | if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, |
| 1022 | &nparams, &units, ¶ms)) |
| 1023 | { |
| 1024 | png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, |
| 1025 | nparams, units, params); |
| 1026 | } |
| 1027 | } |
| 1028 | #endif |
| 1029 | #if defined(PNG_pHYs_SUPPORTED) |
| 1030 | { |
| 1031 | png_uint_32 res_x, res_y; |
| 1032 | int unit_type; |
| 1033 | |
| 1034 | if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1035 | png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1036 | } |
| 1037 | #endif |
| 1038 | #if defined(PNG_sBIT_SUPPORTED) |
| 1039 | { |
| 1040 | png_color_8p sig_bit; |
| 1041 | |
| 1042 | if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1043 | png_set_sBIT(write_ptr, write_info_ptr, sig_bit); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1044 | } |
| 1045 | #endif |
| 1046 | #if defined(PNG_sCAL_SUPPORTED) |
| 1047 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
| 1048 | { |
| 1049 | int unit; |
| 1050 | double scal_width, scal_height; |
| 1051 | |
| 1052 | if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, |
| 1053 | &scal_height)) |
| 1054 | { |
| 1055 | png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height); |
| 1056 | } |
| 1057 | } |
| 1058 | #else |
| 1059 | #ifdef PNG_FIXED_POINT_SUPPORTED |
| 1060 | { |
| 1061 | int unit; |
| 1062 | png_charp scal_width, scal_height; |
| 1063 | |
| 1064 | if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, |
| 1065 | &scal_height)) |
| 1066 | { |
| 1067 | png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height); |
| 1068 | } |
| 1069 | } |
| 1070 | #endif |
| 1071 | #endif |
| 1072 | #endif |
| 1073 | #if defined(PNG_TEXT_SUPPORTED) |
| 1074 | { |
| 1075 | png_textp text_ptr; |
| 1076 | int num_text; |
| 1077 | |
| 1078 | if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) |
| 1079 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1080 | png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks", num_text); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1081 | png_set_text(write_ptr, write_info_ptr, text_ptr, num_text); |
| 1082 | } |
| 1083 | } |
| 1084 | #endif |
| 1085 | #if defined(PNG_tIME_SUPPORTED) |
| 1086 | { |
| 1087 | png_timep mod_time; |
| 1088 | |
| 1089 | if (png_get_tIME(read_ptr, read_info_ptr, &mod_time)) |
| 1090 | { |
| 1091 | png_set_tIME(write_ptr, write_info_ptr, mod_time); |
| 1092 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1093 | /* We have to use png_memcpy instead of "=" because the string |
| 1094 | * pointed to by png_convert_to_rfc1123() gets free'ed before |
| 1095 | * we use it. |
| 1096 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1097 | png_memcpy(tIME_string, |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1098 | png_convert_to_rfc1123(read_ptr, mod_time), |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1099 | png_sizeof(tIME_string)); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1100 | tIME_string[png_sizeof(tIME_string) - 1] = '\0'; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1101 | tIME_chunk_present++; |
| 1102 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1103 | } |
| 1104 | } |
| 1105 | #endif |
| 1106 | #if defined(PNG_tRNS_SUPPORTED) |
| 1107 | { |
| 1108 | png_bytep trans; |
| 1109 | int num_trans; |
| 1110 | png_color_16p trans_values; |
| 1111 | |
| 1112 | if (png_get_tRNS(read_ptr, read_info_ptr, &trans, &num_trans, |
| 1113 | &trans_values)) |
| 1114 | { |
| 1115 | int sample_max = (1 << read_info_ptr->bit_depth); |
| 1116 | /* libpng doesn't reject a tRNS chunk with out-of-range samples */ |
| 1117 | if (!((read_info_ptr->color_type == PNG_COLOR_TYPE_GRAY && |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1118 | (int)trans_values->gray > sample_max) || |
| 1119 | (read_info_ptr->color_type == PNG_COLOR_TYPE_RGB && |
| 1120 | ((int)trans_values->red > sample_max || |
| 1121 | (int)trans_values->green > sample_max || |
| 1122 | (int)trans_values->blue > sample_max)))) |
| 1123 | png_set_tRNS(write_ptr, write_info_ptr, trans, num_trans, |
| 1124 | trans_values); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1125 | } |
| 1126 | } |
| 1127 | #endif |
| 1128 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
| 1129 | { |
| 1130 | png_unknown_chunkp unknowns; |
| 1131 | int num_unknowns = (int)png_get_unknown_chunks(read_ptr, read_info_ptr, |
| 1132 | &unknowns); |
| 1133 | if (num_unknowns) |
| 1134 | { |
| 1135 | png_size_t i; |
| 1136 | png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns, |
| 1137 | num_unknowns); |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1138 | /* Copy the locations from the read_info_ptr. The automatically |
| 1139 | * generated locations in write_info_ptr are wrong because we |
| 1140 | * haven't written anything yet. |
| 1141 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1142 | for (i = 0; i < (png_size_t)num_unknowns; i++) |
| 1143 | png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, |
| 1144 | unknowns[i].location); |
| 1145 | } |
| 1146 | } |
| 1147 | #endif |
| 1148 | |
| 1149 | #ifdef PNG_WRITE_SUPPORTED |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1150 | png_debug(0, "Writing info struct"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1151 | |
| 1152 | /* If we wanted, we could write info in two steps: |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1153 | * png_write_info_before_PLTE(write_ptr, write_info_ptr); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1154 | */ |
| 1155 | png_write_info(write_ptr, write_info_ptr); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1156 | |
| 1157 | #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) |
| 1158 | if (user_chunk_data[0] != 0) |
| 1159 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1160 | png_byte png_sTER[5] = {115, 84, 69, 82, '\0'}; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1161 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1162 | unsigned char |
| 1163 | ster_chunk_data[1]; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1164 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1165 | if (verbose) |
| 1166 | fprintf(STDERR, "\n stereo mode = %lu\n", |
| 1167 | (unsigned long)(user_chunk_data[0] - 1)); |
| 1168 | ster_chunk_data[0]=(unsigned char)(user_chunk_data[0] - 1); |
| 1169 | png_write_chunk(write_ptr, png_sTER, ster_chunk_data, 1); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1170 | } |
| 1171 | if (user_chunk_data[1] != 0 || user_chunk_data[2] != 0) |
| 1172 | { |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1173 | png_byte png_vpAg[5] = {118, 112, 65, 103, '\0'}; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1174 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1175 | unsigned char |
| 1176 | vpag_chunk_data[9]; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1177 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1178 | if (verbose) |
| 1179 | fprintf(STDERR, " vpAg = %lu x %lu, units = %lu\n", |
| 1180 | (unsigned long)user_chunk_data[1], |
| 1181 | (unsigned long)user_chunk_data[2], |
| 1182 | (unsigned long)user_chunk_data[3]); |
| 1183 | png_save_uint_32(vpag_chunk_data, user_chunk_data[1]); |
| 1184 | png_save_uint_32(vpag_chunk_data + 4, user_chunk_data[2]); |
| 1185 | vpag_chunk_data[8] = (unsigned char)(user_chunk_data[3] & 0xff); |
| 1186 | png_write_chunk(write_ptr, png_vpAg, vpag_chunk_data, 9); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | #endif |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1190 | #endif |
| 1191 | |
| 1192 | #ifdef SINGLE_ROWBUF_ALLOC |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1193 | png_debug(0, "Allocating row buffer..."); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1194 | row_buf = (png_bytep)png_malloc(read_ptr, |
| 1195 | png_get_rowbytes(read_ptr, read_info_ptr)); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1196 | png_debug1(0, "0x%08lx", (unsigned long)row_buf); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1197 | #endif /* SINGLE_ROWBUF_ALLOC */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1198 | png_debug(0, "Writing row data"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1199 | |
| 1200 | #if defined(PNG_READ_INTERLACING_SUPPORTED) || \ |
| 1201 | defined(PNG_WRITE_INTERLACING_SUPPORTED) |
| 1202 | num_pass = png_set_interlace_handling(read_ptr); |
| 1203 | # ifdef PNG_WRITE_SUPPORTED |
| 1204 | png_set_interlace_handling(write_ptr); |
| 1205 | # endif |
| 1206 | #else |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1207 | num_pass = 1; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1208 | #endif |
| 1209 | |
| 1210 | #ifdef PNGTEST_TIMING |
| 1211 | t_stop = (float)clock(); |
| 1212 | t_misc += (t_stop - t_start); |
| 1213 | t_start = t_stop; |
| 1214 | #endif |
| 1215 | for (pass = 0; pass < num_pass; pass++) |
| 1216 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1217 | png_debug1(0, "Writing row data for pass %d", pass); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1218 | for (y = 0; y < height; y++) |
| 1219 | { |
| 1220 | #ifndef SINGLE_ROWBUF_ALLOC |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1221 | png_debug2(0, "Allocating row buffer (pass %d, y = %ld)...", pass, y); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1222 | row_buf = (png_bytep)png_malloc(read_ptr, |
| 1223 | png_get_rowbytes(read_ptr, read_info_ptr)); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1224 | png_debug2(0, "0x%08lx (%ld bytes)", (unsigned long)row_buf, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1225 | png_get_rowbytes(read_ptr, read_info_ptr)); |
| 1226 | #endif /* !SINGLE_ROWBUF_ALLOC */ |
| 1227 | png_read_rows(read_ptr, (png_bytepp)&row_buf, png_bytepp_NULL, 1); |
| 1228 | |
| 1229 | #ifdef PNG_WRITE_SUPPORTED |
| 1230 | #ifdef PNGTEST_TIMING |
| 1231 | t_stop = (float)clock(); |
| 1232 | t_decode += (t_stop - t_start); |
| 1233 | t_start = t_stop; |
| 1234 | #endif |
| 1235 | png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); |
| 1236 | #ifdef PNGTEST_TIMING |
| 1237 | t_stop = (float)clock(); |
| 1238 | t_encode += (t_stop - t_start); |
| 1239 | t_start = t_stop; |
| 1240 | #endif |
| 1241 | #endif /* PNG_WRITE_SUPPORTED */ |
| 1242 | |
| 1243 | #ifndef SINGLE_ROWBUF_ALLOC |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1244 | png_debug2(0, "Freeing row buffer (pass %d, y = %ld)", pass, y); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1245 | png_free(read_ptr, row_buf); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1246 | row_buf = NULL; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1247 | #endif /* !SINGLE_ROWBUF_ALLOC */ |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | #if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
| 1252 | png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); |
| 1253 | #endif |
| 1254 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
| 1255 | png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); |
| 1256 | #endif |
| 1257 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1258 | png_debug(0, "Reading and writing end_info data"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1259 | |
| 1260 | png_read_end(read_ptr, end_info_ptr); |
| 1261 | #if defined(PNG_TEXT_SUPPORTED) |
| 1262 | { |
| 1263 | png_textp text_ptr; |
| 1264 | int num_text; |
| 1265 | |
| 1266 | if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0) |
| 1267 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1268 | png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks", num_text); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1269 | png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text); |
| 1270 | } |
| 1271 | } |
| 1272 | #endif |
| 1273 | #if defined(PNG_tIME_SUPPORTED) |
| 1274 | { |
| 1275 | png_timep mod_time; |
| 1276 | |
| 1277 | if (png_get_tIME(read_ptr, end_info_ptr, &mod_time)) |
| 1278 | { |
| 1279 | png_set_tIME(write_ptr, write_end_info_ptr, mod_time); |
| 1280 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1281 | /* We have to use png_memcpy instead of "=" because the string |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1282 | pointed to by png_convert_to_rfc1123() gets free'ed before |
| 1283 | we use it */ |
| 1284 | png_memcpy(tIME_string, |
| 1285 | png_convert_to_rfc1123(read_ptr, mod_time), |
| 1286 | png_sizeof(tIME_string)); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1287 | tIME_string[png_sizeof(tIME_string) - 1] = '\0'; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1288 | tIME_chunk_present++; |
| 1289 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1290 | } |
| 1291 | } |
| 1292 | #endif |
| 1293 | #if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) |
| 1294 | { |
| 1295 | png_unknown_chunkp unknowns; |
| 1296 | int num_unknowns; |
| 1297 | num_unknowns = (int)png_get_unknown_chunks(read_ptr, end_info_ptr, |
| 1298 | &unknowns); |
| 1299 | if (num_unknowns) |
| 1300 | { |
| 1301 | png_size_t i; |
| 1302 | png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns, |
| 1303 | num_unknowns); |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1304 | /* Copy the locations from the read_info_ptr. The automatically |
| 1305 | * generated locations in write_end_info_ptr are wrong because we |
| 1306 | * haven't written the end_info yet. |
| 1307 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1308 | for (i = 0; i < (png_size_t)num_unknowns; i++) |
| 1309 | png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i, |
| 1310 | unknowns[i].location); |
| 1311 | } |
| 1312 | } |
| 1313 | #endif |
| 1314 | #ifdef PNG_WRITE_SUPPORTED |
| 1315 | png_write_end(write_ptr, write_end_info_ptr); |
| 1316 | #endif |
| 1317 | |
| 1318 | #ifdef PNG_EASY_ACCESS_SUPPORTED |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1319 | if (verbose) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1320 | { |
| 1321 | png_uint_32 iwidth, iheight; |
| 1322 | iwidth = png_get_image_width(write_ptr, write_info_ptr); |
| 1323 | iheight = png_get_image_height(write_ptr, write_info_ptr); |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1324 | fprintf(STDERR, "\n Image width = %lu, height = %lu\n", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1325 | (unsigned long)iwidth, (unsigned long)iheight); |
| 1326 | } |
| 1327 | #endif |
| 1328 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1329 | png_debug(0, "Destroying data structs"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1330 | #ifdef SINGLE_ROWBUF_ALLOC |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1331 | png_debug(1, "destroying row_buf for read_ptr"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1332 | png_free(read_ptr, row_buf); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1333 | row_buf = NULL; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1334 | #endif /* SINGLE_ROWBUF_ALLOC */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1335 | png_debug(1, "destroying read_ptr, read_info_ptr, end_info_ptr"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1336 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
| 1337 | #ifdef PNG_WRITE_SUPPORTED |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1338 | png_debug(1, "destroying write_end_info_ptr"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1339 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1340 | png_debug(1, "destroying write_ptr, write_info_ptr"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1341 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 1342 | #endif |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1343 | png_debug(0, "Destruction complete."); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1344 | |
| 1345 | FCLOSE(fpin); |
| 1346 | FCLOSE(fpout); |
| 1347 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1348 | png_debug(0, "Opening files for comparison"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1349 | #if defined(_WIN32_WCE) |
| 1350 | MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH); |
| 1351 | if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) |
| 1352 | #else |
| 1353 | if ((fpin = fopen(inname, "rb")) == NULL) |
| 1354 | #endif |
| 1355 | { |
| 1356 | fprintf(STDERR, "Could not find file %s\n", inname); |
| 1357 | return (1); |
| 1358 | } |
| 1359 | |
| 1360 | #if defined(_WIN32_WCE) |
| 1361 | MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH); |
| 1362 | if ((fpout = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) |
| 1363 | #else |
| 1364 | if ((fpout = fopen(outname, "rb")) == NULL) |
| 1365 | #endif |
| 1366 | { |
| 1367 | fprintf(STDERR, "Could not find file %s\n", outname); |
| 1368 | FCLOSE(fpin); |
| 1369 | return (1); |
| 1370 | } |
| 1371 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1372 | for (;;) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1373 | { |
| 1374 | png_size_t num_in, num_out; |
| 1375 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1376 | READFILE(fpin, inbuf, 1, num_in); |
| 1377 | READFILE(fpout, outbuf, 1, num_out); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1378 | |
| 1379 | if (num_in != num_out) |
| 1380 | { |
| 1381 | fprintf(STDERR, "\nFiles %s and %s are of a different size\n", |
| 1382 | inname, outname); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1383 | if (wrote_question == 0) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1384 | { |
| 1385 | fprintf(STDERR, |
| 1386 | " Was %s written with the same maximum IDAT chunk size (%d bytes),", |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1387 | inname, PNG_ZBUF_SIZE); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1388 | fprintf(STDERR, |
| 1389 | "\n filtering heuristic (libpng default), compression"); |
| 1390 | fprintf(STDERR, |
| 1391 | " level (zlib default),\n and zlib version (%s)?\n\n", |
| 1392 | ZLIB_VERSION); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1393 | wrote_question = 1; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1394 | } |
| 1395 | FCLOSE(fpin); |
| 1396 | FCLOSE(fpout); |
| 1397 | return (0); |
| 1398 | } |
| 1399 | |
| 1400 | if (!num_in) |
| 1401 | break; |
| 1402 | |
| 1403 | if (png_memcmp(inbuf, outbuf, num_in)) |
| 1404 | { |
| 1405 | fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1406 | if (wrote_question == 0) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1407 | { |
| 1408 | fprintf(STDERR, |
| 1409 | " Was %s written with the same maximum IDAT chunk size (%d bytes),", |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1410 | inname, PNG_ZBUF_SIZE); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1411 | fprintf(STDERR, |
| 1412 | "\n filtering heuristic (libpng default), compression"); |
| 1413 | fprintf(STDERR, |
| 1414 | " level (zlib default),\n and zlib version (%s)?\n\n", |
| 1415 | ZLIB_VERSION); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1416 | wrote_question = 1; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1417 | } |
| 1418 | FCLOSE(fpin); |
| 1419 | FCLOSE(fpout); |
| 1420 | return (0); |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | FCLOSE(fpin); |
| 1425 | FCLOSE(fpout); |
| 1426 | |
| 1427 | return (0); |
| 1428 | } |
| 1429 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1430 | /* Input and output filenames */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1431 | #ifdef RISCOS |
| 1432 | static PNG_CONST char *inname = "pngtest/png"; |
| 1433 | static PNG_CONST char *outname = "pngout/png"; |
| 1434 | #else |
| 1435 | static PNG_CONST char *inname = "pngtest.png"; |
| 1436 | static PNG_CONST char *outname = "pngout.png"; |
| 1437 | #endif |
| 1438 | |
| 1439 | int |
| 1440 | main(int argc, char *argv[]) |
| 1441 | { |
| 1442 | int multiple = 0; |
| 1443 | int ierror = 0; |
| 1444 | |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1445 | fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1446 | fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1447 | fprintf(STDERR, "%s", png_get_copyright(NULL)); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1448 | /* Show the version of libpng used in building the library */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1449 | fprintf(STDERR, " library (%lu):%s", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1450 | (unsigned long)png_access_version_number(), |
| 1451 | png_get_header_version(NULL)); |
| 1452 | /* Show the version of libpng used in building the application */ |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1453 | fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1454 | PNG_HEADER_VERSION_STRING); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1455 | fprintf(STDERR, " sizeof(png_struct)=%ld, sizeof(png_info)=%ld\n", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1456 | (long)png_sizeof(png_struct), (long)png_sizeof(png_info)); |
| 1457 | |
| 1458 | /* Do some consistency checking on the memory allocation settings, I'm |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1459 | * not sure this matters, but it is nice to know, the first of these |
| 1460 | * tests should be impossible because of the way the macros are set |
| 1461 | * in pngconf.h |
| 1462 | */ |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1463 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
| 1464 | fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n"); |
| 1465 | #endif |
| 1466 | /* I think the following can happen. */ |
| 1467 | #if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K) |
| 1468 | fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n"); |
| 1469 | #endif |
| 1470 | |
| 1471 | if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING)) |
| 1472 | { |
| 1473 | fprintf(STDERR, |
| 1474 | "Warning: versions are different between png.h and png.c\n"); |
| 1475 | fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING); |
| 1476 | fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver); |
| 1477 | ++ierror; |
| 1478 | } |
| 1479 | |
| 1480 | if (argc > 1) |
| 1481 | { |
| 1482 | if (strcmp(argv[1], "-m") == 0) |
| 1483 | { |
| 1484 | multiple = 1; |
| 1485 | status_dots_requested = 0; |
| 1486 | } |
| 1487 | else if (strcmp(argv[1], "-mv") == 0 || |
| 1488 | strcmp(argv[1], "-vm") == 0 ) |
| 1489 | { |
| 1490 | multiple = 1; |
| 1491 | verbose = 1; |
| 1492 | status_dots_requested = 1; |
| 1493 | } |
| 1494 | else if (strcmp(argv[1], "-v") == 0) |
| 1495 | { |
| 1496 | verbose = 1; |
| 1497 | status_dots_requested = 1; |
| 1498 | inname = argv[2]; |
| 1499 | } |
| 1500 | else |
| 1501 | { |
| 1502 | inname = argv[1]; |
| 1503 | status_dots_requested = 0; |
| 1504 | } |
| 1505 | } |
| 1506 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1507 | if (!multiple && argc == 3 + verbose) |
| 1508 | outname = argv[2 + verbose]; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1509 | |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1510 | if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2)) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1511 | { |
| 1512 | fprintf(STDERR, |
| 1513 | "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", |
| 1514 | argv[0], argv[0]); |
| 1515 | fprintf(STDERR, |
| 1516 | " reads/writes one PNG file (without -m) or multiple files (-m)\n"); |
| 1517 | fprintf(STDERR, |
| 1518 | " with -m %s is used as a temporary file\n", outname); |
| 1519 | exit(1); |
| 1520 | } |
| 1521 | |
| 1522 | if (multiple) |
| 1523 | { |
| 1524 | int i; |
| 1525 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 1526 | int allocation_now = current_allocation; |
| 1527 | #endif |
| 1528 | for (i=2; i<argc; ++i) |
| 1529 | { |
| 1530 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
| 1531 | int k; |
| 1532 | #endif |
| 1533 | int kerror; |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1534 | fprintf(STDERR, "\n Testing %s:", argv[i]); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1535 | kerror = test_one_file(argv[i], outname); |
| 1536 | if (kerror == 0) |
| 1537 | { |
| 1538 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 1539 | fprintf(STDERR, "\n PASS (%lu zero samples)\n", |
| 1540 | (unsigned long)zero_samples); |
| 1541 | #else |
| 1542 | fprintf(STDERR, " PASS\n"); |
| 1543 | #endif |
| 1544 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1545 | for (k = 0; k<256; k++) |
| 1546 | if (filters_used[k]) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1547 | fprintf(STDERR, " Filter %d was used %lu times\n", |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1548 | k, (unsigned long)filters_used[k]); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1549 | #endif |
| 1550 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1551 | if (tIME_chunk_present != 0) |
| 1552 | fprintf(STDERR, " tIME = %s\n", tIME_string); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1553 | tIME_chunk_present = 0; |
| 1554 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1555 | } |
| 1556 | else |
| 1557 | { |
| 1558 | fprintf(STDERR, " FAIL\n"); |
| 1559 | ierror += kerror; |
| 1560 | } |
| 1561 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 1562 | if (allocation_now != current_allocation) |
| 1563 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1564 | current_allocation - allocation_now); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1565 | if (current_allocation != 0) |
| 1566 | { |
| 1567 | memory_infop pinfo = pinformation; |
| 1568 | |
| 1569 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", |
| 1570 | current_allocation); |
| 1571 | while (pinfo != NULL) |
| 1572 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1573 | fprintf(STDERR, " %lu bytes at %x\n", |
| 1574 | (unsigned long)pinfo->size, |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1575 | (unsigned int) pinfo->pointer); |
| 1576 | pinfo = pinfo->next; |
| 1577 | } |
| 1578 | } |
| 1579 | #endif |
| 1580 | } |
| 1581 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 1582 | fprintf(STDERR, " Current memory allocation: %10d bytes\n", |
| 1583 | current_allocation); |
| 1584 | fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", |
| 1585 | maximum_allocation); |
| 1586 | fprintf(STDERR, " Total memory allocation: %10d bytes\n", |
| 1587 | total_allocation); |
| 1588 | fprintf(STDERR, " Number of allocations: %10d\n", |
| 1589 | num_allocations); |
| 1590 | #endif |
| 1591 | } |
| 1592 | else |
| 1593 | { |
| 1594 | int i; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1595 | for (i = 0; i<3; ++i) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1596 | { |
| 1597 | int kerror; |
| 1598 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 1599 | int allocation_now = current_allocation; |
| 1600 | #endif |
| 1601 | if (i == 1) status_dots_requested = 1; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1602 | else if (verbose == 0)status_dots_requested = 0; |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1603 | if (i == 0 || verbose == 1 || ierror != 0) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1604 | fprintf(STDERR, "\n Testing %s:", inname); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1605 | kerror = test_one_file(inname, outname); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1606 | if (kerror == 0) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1607 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1608 | if (verbose == 1 || i == 2) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1609 | { |
| 1610 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
| 1611 | int k; |
| 1612 | #endif |
| 1613 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 1614 | fprintf(STDERR, "\n PASS (%lu zero samples)\n", |
| 1615 | (unsigned long)zero_samples); |
| 1616 | #else |
| 1617 | fprintf(STDERR, " PASS\n"); |
| 1618 | #endif |
| 1619 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1620 | for (k = 0; k<256; k++) |
| 1621 | if (filters_used[k]) |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1622 | fprintf(STDERR, " Filter %d was used %lu times\n", |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1623 | k, |
| 1624 | (unsigned long)filters_used[k]); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1625 | #endif |
| 1626 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1627 | if (tIME_chunk_present != 0) |
| 1628 | fprintf(STDERR, " tIME = %s\n", tIME_string); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1629 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1630 | } |
| 1631 | } |
| 1632 | else |
| 1633 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1634 | if (verbose == 0 && i != 2) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1635 | fprintf(STDERR, "\n Testing %s:", inname); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1636 | fprintf(STDERR, " FAIL\n"); |
| 1637 | ierror += kerror; |
| 1638 | } |
| 1639 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 1640 | if (allocation_now != current_allocation) |
| 1641 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1642 | current_allocation - allocation_now); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1643 | if (current_allocation != 0) |
| 1644 | { |
| 1645 | memory_infop pinfo = pinformation; |
| 1646 | |
| 1647 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", |
| 1648 | current_allocation); |
| 1649 | while (pinfo != NULL) |
| 1650 | { |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1651 | fprintf(STDERR, " %lu bytes at %x\n", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1652 | (unsigned long)pinfo->size, (unsigned int)pinfo->pointer); |
| 1653 | pinfo = pinfo->next; |
| 1654 | } |
| 1655 | } |
| 1656 | #endif |
| 1657 | } |
| 1658 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
| 1659 | fprintf(STDERR, " Current memory allocation: %10d bytes\n", |
| 1660 | current_allocation); |
| 1661 | fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", |
| 1662 | maximum_allocation); |
| 1663 | fprintf(STDERR, " Total memory allocation: %10d bytes\n", |
| 1664 | total_allocation); |
| 1665 | fprintf(STDERR, " Number of allocations: %10d\n", |
| 1666 | num_allocations); |
| 1667 | #endif |
| 1668 | } |
| 1669 | |
| 1670 | #ifdef PNGTEST_TIMING |
| 1671 | t_stop = (float)clock(); |
| 1672 | t_misc += (t_stop - t_start); |
| 1673 | t_start = t_stop; |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1674 | fprintf(STDERR, " CPU time used = %.3f seconds", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1675 | (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1676 | fprintf(STDERR, " (decoding %.3f,\n", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1677 | t_decode/(float)CLOCKS_PER_SEC); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1678 | fprintf(STDERR, " encoding %.3f ,", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1679 | t_encode/(float)CLOCKS_PER_SEC); |
The Android Open Source Project | 4215dd1 | 2009-03-09 11:52:12 -0700 | [diff] [blame] | 1680 | fprintf(STDERR, " other %.3f seconds)\n\n", |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1681 | t_misc/(float)CLOCKS_PER_SEC); |
| 1682 | #endif |
| 1683 | |
| 1684 | if (ierror == 0) |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1685 | fprintf(STDERR, " libpng passes test\n"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1686 | else |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1687 | fprintf(STDERR, " libpng FAILS test\n"); |
The Android Open Source Project | 893912b | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1688 | return (int)(ierror != 0); |
| 1689 | } |
| 1690 | |
| 1691 | /* Generate a compiler error if there is an old png.h in the search path. */ |
Patrick Scott | a0bb96c | 2009-07-22 11:50:02 -0400 | [diff] [blame^] | 1692 | typedef version_1_2_38 your_png_h_is_not_version_1_2_38; |