| 1 | ␍␊ |
| 2 | /* pngtest.c - a simple test program to test libpng␍␊ |
| 3 | *␍␊ |
| 4 | * Last changed in libpng 1.5.6 [November 3, 2011]␍␊ |
| 5 | * Copyright (c) 1998-2011 Glenn Randers-Pehrson␍␊ |
| 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 | *␍␊ |
| 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 | *␍␊ |
| 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 | #define _POSIX_SOURCE 1␍␊ |
| 35 | ␍␊ |
| 36 | #include "zlib.h"␍␊ |
| 37 | #include "png.h"␍␊ |
| 38 | /* Copied from pngpriv.h but only used in error messages below. */␍␊ |
| 39 | #ifndef PNG_ZBUF_SIZE␍␊ |
| 40 | # define PNG_ZBUF_SIZE 8192␍␊ |
| 41 | #endif␍␊ |
| 42 | # include <stdio.h>␍␊ |
| 43 | # include <stdlib.h>␍␊ |
| 44 | # include <string.h>␍␊ |
| 45 | # define FCLOSE(file) fclose(file)␍␊ |
| 46 | ␍␊ |
| 47 | #ifndef PNG_STDIO_SUPPORTED␍␊ |
| 48 | typedef FILE * png_FILE_p;␍␊ |
| 49 | #endif␍␊ |
| 50 | ␍␊ |
| 51 | /* Makes pngtest verbose so we can find problems. */␍␊ |
| 52 | #ifndef PNG_DEBUG␍␊ |
| 53 | # define PNG_DEBUG 0␍␊ |
| 54 | #endif␍␊ |
| 55 | ␍␊ |
| 56 | #if PNG_DEBUG > 1␍␊ |
| 57 | # define pngtest_debug(m) ((void)fprintf(stderr, m "\n"))␍␊ |
| 58 | # define pngtest_debug1(m,p1) ((void)fprintf(stderr, m "\n", p1))␍␊ |
| 59 | # define pngtest_debug2(m,p1,p2) ((void)fprintf(stderr, m "\n", p1, p2))␍␊ |
| 60 | #else␍␊ |
| 61 | # define pngtest_debug(m) ((void)0)␍␊ |
| 62 | # define pngtest_debug1(m,p1) ((void)0)␍␊ |
| 63 | # define pngtest_debug2(m,p1,p2) ((void)0)␍␊ |
| 64 | #endif␍␊ |
| 65 | ␍␊ |
| 66 | #if !PNG_DEBUG␍␊ |
| 67 | # define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */␍␊ |
| 68 | #endif␍␊ |
| 69 | ␍␊ |
| 70 | /* The code uses memcmp and memcpy on large objects (typically row pointers) so␍␊ |
| 71 | * it is necessary to do soemthing special on certain architectures, note that␍␊ |
| 72 | * the actual support for this was effectively removed in 1.4, so only the␍␊ |
| 73 | * memory remains in this program:␍␊ |
| 74 | */␍␊ |
| 75 | #define CVT_PTR(ptr) (ptr)␍␊ |
| 76 | #define CVT_PTR_NOCHECK(ptr) (ptr)␍␊ |
| 77 | #define png_memcmp memcmp␍␊ |
| 78 | #define png_memcpy memcpy␍␊ |
| 79 | #define png_memset memset␍␊ |
| 80 | ␍␊ |
| 81 | /* Turn on CPU timing␍␊ |
| 82 | #define PNGTEST_TIMING␍␊ |
| 83 | */␍␊ |
| 84 | ␍␊ |
| 85 | #ifndef PNG_FLOATING_POINT_SUPPORTED␍␊ |
| 86 | #undef PNGTEST_TIMING␍␊ |
| 87 | #endif␍␊ |
| 88 | ␍␊ |
| 89 | #ifdef PNGTEST_TIMING␍␊ |
| 90 | static float t_start, t_stop, t_decode, t_encode, t_misc;␍␊ |
| 91 | #include <time.h>␍␊ |
| 92 | #endif␍␊ |
| 93 | ␍␊ |
| 94 | #ifdef PNG_TIME_RFC1123_SUPPORTED␍␊ |
| 95 | #define PNG_tIME_STRING_LENGTH 29␍␊ |
| 96 | static int tIME_chunk_present = 0;␍␊ |
| 97 | static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present";␍␊ |
| 98 | #endif␍␊ |
| 99 | ␍␊ |
| 100 | static int verbose = 0;␍␊ |
| 101 | static int strict = 0;␍␊ |
| 102 | ␍␊ |
| 103 | int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));␍␊ |
| 104 | ␍␊ |
| 105 | #ifdef __TURBOC__␍␊ |
| 106 | #include <mem.h>␍␊ |
| 107 | #endif␍␊ |
| 108 | ␍␊ |
| 109 | /* Defined so I can write to a file on gui/windowing platforms */␍␊ |
| 110 | /* #define STDERR stderr */␍␊ |
| 111 | #define STDERR stdout /* For DOS */␍␊ |
| 112 | ␍␊ |
| 113 | /* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */␍␊ |
| 114 | #ifndef png_jmpbuf␍␊ |
| 115 | # define png_jmpbuf(png_ptr) png_ptr->jmpbuf␍␊ |
| 116 | #endif␍␊ |
| 117 | ␍␊ |
| 118 | /* Example of using row callbacks to make a simple progress meter */␍␊ |
| 119 | static int status_pass = 1;␍␊ |
| 120 | static int status_dots_requested = 0;␍␊ |
| 121 | static int status_dots = 1;␍␊ |
| 122 | ␍␊ |
| 123 | void PNGCBAPI␍␊ |
| 124 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);␍␊ |
| 125 | void PNGCBAPI␍␊ |
| 126 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)␍␊ |
| 127 | {␍␊ |
| 128 | if (png_ptr == NULL || row_number > PNG_UINT_31_MAX)␍␊ |
| 129 | return;␍␊ |
| 130 | ␍␊ |
| 131 | if (status_pass != pass)␍␊ |
| 132 | {␍␊ |
| 133 | fprintf(stdout, "\n Pass %d: ", pass);␍␊ |
| 134 | status_pass = pass;␍␊ |
| 135 | status_dots = 31;␍␊ |
| 136 | }␍␊ |
| 137 | ␍␊ |
| 138 | status_dots--;␍␊ |
| 139 | ␍␊ |
| 140 | if (status_dots == 0)␍␊ |
| 141 | {␍␊ |
| 142 | fprintf(stdout, "\n ");␍␊ |
| 143 | status_dots=30;␍␊ |
| 144 | }␍␊ |
| 145 | ␍␊ |
| 146 | fprintf(stdout, "r");␍␊ |
| 147 | }␍␊ |
| 148 | ␍␊ |
| 149 | void PNGCBAPI␍␊ |
| 150 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);␍␊ |
| 151 | void PNGCBAPI␍␊ |
| 152 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)␍␊ |
| 153 | {␍␊ |
| 154 | if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7)␍␊ |
| 155 | return;␍␊ |
| 156 | ␍␊ |
| 157 | fprintf(stdout, "w");␍␊ |
| 158 | }␍␊ |
| 159 | ␍␊ |
| 160 | ␍␊ |
| 161 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED␍␊ |
| 162 | /* Example of using user transform callback (we don't transform anything,␍␊ |
| 163 | * but merely examine the row filters. We set this to 256 rather than␍␊ |
| 164 | * 5 in case illegal filter values are present.)␍␊ |
| 165 | */␍␊ |
| 166 | static png_uint_32 filters_used[256];␍␊ |
| 167 | void PNGCBAPI␍␊ |
| 168 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data);␍␊ |
| 169 | void PNGCBAPI␍␊ |
| 170 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)␍␊ |
| 171 | {␍␊ |
| 172 | if (png_ptr != NULL && row_info != NULL)␍␊ |
| 173 | ++filters_used[*(data - 1)];␍␊ |
| 174 | }␍␊ |
| 175 | #endif␍␊ |
| 176 | ␍␊ |
| 177 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED␍␊ |
| 178 | /* Example of using user transform callback (we don't transform anything,␍␊ |
| 179 | * but merely count the zero samples)␍␊ |
| 180 | */␍␊ |
| 181 | ␍␊ |
| 182 | static png_uint_32 zero_samples;␍␊ |
| 183 | ␍␊ |
| 184 | void PNGCBAPI␍␊ |
| 185 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data);␍␊ |
| 186 | void PNGCBAPI␍␊ |
| 187 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)␍␊ |
| 188 | {␍␊ |
| 189 | png_bytep dp = data;␍␊ |
| 190 | if (png_ptr == NULL)␍␊ |
| 191 | return;␍␊ |
| 192 | ␍␊ |
| 193 | /* Contents of row_info:␍␊ |
| 194 | * png_uint_32 width width of row␍␊ |
| 195 | * png_uint_32 rowbytes number of bytes in row␍␊ |
| 196 | * png_byte color_type color type of pixels␍␊ |
| 197 | * png_byte bit_depth bit depth of samples␍␊ |
| 198 | * png_byte channels number of channels (1-4)␍␊ |
| 199 | * png_byte pixel_depth bits per pixel (depth*channels)␍␊ |
| 200 | */␍␊ |
| 201 | ␍␊ |
| 202 | /* Counts the number of zero samples (or zero pixels if color_type is 3 */␍␊ |
| 203 | ␍␊ |
| 204 | if (row_info->color_type == 0 || row_info->color_type == 3)␍␊ |
| 205 | {␍␊ |
| 206 | int pos = 0;␍␊ |
| 207 | png_uint_32 n, nstop;␍␊ |
| 208 | ␍␊ |
| 209 | for (n = 0, nstop=row_info->width; n<nstop; n++)␍␊ |
| 210 | {␍␊ |
| 211 | if (row_info->bit_depth == 1)␍␊ |
| 212 | {␍␊ |
| 213 | if (((*dp << pos++ ) & 0x80) == 0)␍␊ |
| 214 | zero_samples++;␍␊ |
| 215 | ␍␊ |
| 216 | if (pos == 8)␍␊ |
| 217 | {␍␊ |
| 218 | pos = 0;␍␊ |
| 219 | dp++;␍␊ |
| 220 | }␍␊ |
| 221 | }␍␊ |
| 222 | ␍␊ |
| 223 | if (row_info->bit_depth == 2)␍␊ |
| 224 | {␍␊ |
| 225 | if (((*dp << (pos+=2)) & 0xc0) == 0)␍␊ |
| 226 | zero_samples++;␍␊ |
| 227 | ␍␊ |
| 228 | if (pos == 8)␍␊ |
| 229 | {␍␊ |
| 230 | pos = 0;␍␊ |
| 231 | dp++;␍␊ |
| 232 | }␍␊ |
| 233 | }␍␊ |
| 234 | ␍␊ |
| 235 | if (row_info->bit_depth == 4)␍␊ |
| 236 | {␍␊ |
| 237 | if (((*dp << (pos+=4)) & 0xf0) == 0)␍␊ |
| 238 | zero_samples++;␍␊ |
| 239 | ␍␊ |
| 240 | if (pos == 8)␍␊ |
| 241 | {␍␊ |
| 242 | pos = 0;␍␊ |
| 243 | dp++;␍␊ |
| 244 | }␍␊ |
| 245 | }␍␊ |
| 246 | ␍␊ |
| 247 | if (row_info->bit_depth == 8)␍␊ |
| 248 | if (*dp++ == 0)␍␊ |
| 249 | zero_samples++;␍␊ |
| 250 | ␍␊ |
| 251 | if (row_info->bit_depth == 16)␍␊ |
| 252 | {␍␊ |
| 253 | if ((*dp | *(dp+1)) == 0)␍␊ |
| 254 | zero_samples++;␍␊ |
| 255 | dp+=2;␍␊ |
| 256 | }␍␊ |
| 257 | }␍␊ |
| 258 | }␍␊ |
| 259 | else /* Other color types */␍␊ |
| 260 | {␍␊ |
| 261 | png_uint_32 n, nstop;␍␊ |
| 262 | int channel;␍␊ |
| 263 | int color_channels = row_info->channels;␍␊ |
| 264 | if (row_info->color_type > 3)color_channels--;␍␊ |
| 265 | ␍␊ |
| 266 | for (n = 0, nstop=row_info->width; n<nstop; n++)␍␊ |
| 267 | {␍␊ |
| 268 | for (channel = 0; channel < color_channels; channel++)␍␊ |
| 269 | {␍␊ |
| 270 | if (row_info->bit_depth == 8)␍␊ |
| 271 | if (*dp++ == 0)␍␊ |
| 272 | zero_samples++;␍␊ |
| 273 | ␍␊ |
| 274 | if (row_info->bit_depth == 16)␍␊ |
| 275 | {␍␊ |
| 276 | if ((*dp | *(dp+1)) == 0)␍␊ |
| 277 | zero_samples++;␍␊ |
| 278 | ␍␊ |
| 279 | dp+=2;␍␊ |
| 280 | }␍␊ |
| 281 | }␍␊ |
| 282 | if (row_info->color_type > 3)␍␊ |
| 283 | {␍␊ |
| 284 | dp++;␍␊ |
| 285 | if (row_info->bit_depth == 16)␍␊ |
| 286 | dp++;␍␊ |
| 287 | }␍␊ |
| 288 | }␍␊ |
| 289 | }␍␊ |
| 290 | }␍␊ |
| 291 | #endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */␍␊ |
| 292 | ␍␊ |
| 293 | static int wrote_question = 0;␍␊ |
| 294 | ␍␊ |
| 295 | #ifndef PNG_STDIO_SUPPORTED␍␊ |
| 296 | /* START of code to validate stdio-free compilation */␍␊ |
| 297 | /* These copies of the default read/write functions come from pngrio.c and␍␊ |
| 298 | * pngwio.c. They allow "don't include stdio" testing of the library.␍␊ |
| 299 | * This is the function that does the actual reading of data. If you are␍␊ |
| 300 | * not reading from a standard C stream, you should create a replacement␍␊ |
| 301 | * read_data function and use it at run time with png_set_read_fn(), rather␍␊ |
| 302 | * than changing the library.␍␊ |
| 303 | */␍␊ |
| 304 | ␍␊ |
| 305 | #ifdef PNG_IO_STATE_SUPPORTED␍␊ |
| 306 | void␍␊ |
| 307 | pngtest_check_io_state(png_structp png_ptr, png_size_t data_length,␍␊ |
| 308 | png_uint_32 io_op);␍␊ |
| 309 | void␍␊ |
| 310 | pngtest_check_io_state(png_structp png_ptr, png_size_t data_length,␍␊ |
| 311 | png_uint_32 io_op)␍␊ |
| 312 | {␍␊ |
| 313 | png_uint_32 io_state = png_get_io_state(png_ptr);␍␊ |
| 314 | int err = 0;␍␊ |
| 315 | ␍␊ |
| 316 | /* Check if the current operation (reading / writing) is as expected. */␍␊ |
| 317 | if ((io_state & PNG_IO_MASK_OP) != io_op)␍␊ |
| 318 | png_error(png_ptr, "Incorrect operation in I/O state");␍␊ |
| 319 | ␍␊ |
| 320 | /* Check if the buffer size specific to the current location␍␊ |
| 321 | * (file signature / header / data / crc) is as expected.␍␊ |
| 322 | */␍␊ |
| 323 | switch (io_state & PNG_IO_MASK_LOC)␍␊ |
| 324 | {␍␊ |
| 325 | case PNG_IO_SIGNATURE:␍␊ |
| 326 | if (data_length > 8)␍␊ |
| 327 | err = 1;␍␊ |
| 328 | break;␍␊ |
| 329 | case PNG_IO_CHUNK_HDR:␍␊ |
| 330 | if (data_length != 8)␍␊ |
| 331 | err = 1;␍␊ |
| 332 | break;␍␊ |
| 333 | case PNG_IO_CHUNK_DATA:␍␊ |
| 334 | break; /* no restrictions here */␍␊ |
| 335 | case PNG_IO_CHUNK_CRC:␍␊ |
| 336 | if (data_length != 4)␍␊ |
| 337 | err = 1;␍␊ |
| 338 | break;␍␊ |
| 339 | default:␍␊ |
| 340 | err = 1; /* uninitialized */␍␊ |
| 341 | }␍␊ |
| 342 | if (err)␍␊ |
| 343 | png_error(png_ptr, "Bad I/O state or buffer size");␍␊ |
| 344 | }␍␊ |
| 345 | #endif␍␊ |
| 346 | ␍␊ |
| 347 | #ifndef USE_FAR_KEYWORD␍␊ |
| 348 | static void PNGCBAPI␍␊ |
| 349 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)␍␊ |
| 350 | {␍␊ |
| 351 | png_size_t check = 0;␍␊ |
| 352 | png_voidp io_ptr;␍␊ |
| 353 | ␍␊ |
| 354 | /* fread() returns 0 on error, so it is OK to store this in a png_size_t␍␊ |
| 355 | * instead of an int, which is what fread() actually returns.␍␊ |
| 356 | */␍␊ |
| 357 | io_ptr = png_get_io_ptr(png_ptr);␍␊ |
| 358 | if (io_ptr != NULL)␍␊ |
| 359 | {␍␊ |
| 360 | check = fread(data, 1, length, (png_FILE_p)io_ptr);␍␊ |
| 361 | }␍␊ |
| 362 | ␍␊ |
| 363 | if (check != length)␍␊ |
| 364 | {␍␊ |
| 365 | png_error(png_ptr, "Read Error");␍␊ |
| 366 | }␍␊ |
| 367 | ␍␊ |
| 368 | #ifdef PNG_IO_STATE_SUPPORTED␍␊ |
| 369 | pngtest_check_io_state(png_ptr, length, PNG_IO_READING);␍␊ |
| 370 | #endif␍␊ |
| 371 | }␍␊ |
| 372 | #else␍␊ |
| 373 | /* This is the model-independent version. Since the standard I/O library␍␊ |
| 374 | can't handle far buffers in the medium and small models, we have to copy␍␊ |
| 375 | the data.␍␊ |
| 376 | */␍␊ |
| 377 | ␍␊ |
| 378 | #define NEAR_BUF_SIZE 1024␍␊ |
| 379 | #define MIN(a,b) (a <= b ? a : b)␍␊ |
| 380 | ␍␊ |
| 381 | static void PNGCBAPI␍␊ |
| 382 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)␍␊ |
| 383 | {␍␊ |
| 384 | png_size_t check;␍␊ |
| 385 | png_byte *n_data;␍␊ |
| 386 | png_FILE_p io_ptr;␍␊ |
| 387 | ␍␊ |
| 388 | /* Check if data really is near. If so, use usual code. */␍␊ |
| 389 | n_data = (png_byte *)CVT_PTR_NOCHECK(data);␍␊ |
| 390 | io_ptr = (png_FILE_p)CVT_PTR(png_get_io_ptr(png_ptr));␍␊ |
| 391 | if ((png_bytep)n_data == data)␍␊ |
| 392 | {␍␊ |
| 393 | check = fread(n_data, 1, length, io_ptr);␍␊ |
| 394 | }␍␊ |
| 395 | else␍␊ |
| 396 | {␍␊ |
| 397 | png_byte buf[NEAR_BUF_SIZE];␍␊ |
| 398 | png_size_t read, remaining, err;␍␊ |
| 399 | check = 0;␍␊ |
| 400 | remaining = length;␍␊ |
| 401 | ␍␊ |
| 402 | do␍␊ |
| 403 | {␍␊ |
| 404 | read = MIN(NEAR_BUF_SIZE, remaining);␍␊ |
| 405 | err = fread(buf, 1, 1, io_ptr);␍␊ |
| 406 | png_memcpy(data, buf, read); /* Copy far buffer to near buffer */␍␊ |
| 407 | if (err != read)␍␊ |
| 408 | break;␍␊ |
| 409 | else␍␊ |
| 410 | check += err;␍␊ |
| 411 | data += read;␍␊ |
| 412 | remaining -= read;␍␊ |
| 413 | }␍␊ |
| 414 | while (remaining != 0);␍␊ |
| 415 | }␍␊ |
| 416 | ␍␊ |
| 417 | if (check != length)␍␊ |
| 418 | png_error(png_ptr, "Read Error");␍␊ |
| 419 | ␍␊ |
| 420 | #ifdef PNG_IO_STATE_SUPPORTED␍␊ |
| 421 | pngtest_check_io_state(png_ptr, length, PNG_IO_READING);␍␊ |
| 422 | #endif␍␊ |
| 423 | }␍␊ |
| 424 | #endif /* USE_FAR_KEYWORD */␍␊ |
| 425 | ␍␊ |
| 426 | #ifdef PNG_WRITE_FLUSH_SUPPORTED␍␊ |
| 427 | static void PNGCBAPI␍␊ |
| 428 | pngtest_flush(png_structp png_ptr)␍␊ |
| 429 | {␍␊ |
| 430 | /* Do nothing; fflush() is said to be just a waste of energy. */␍␊ |
| 431 | PNG_UNUSED(png_ptr) /* Stifle compiler warning */␍␊ |
| 432 | }␍␊ |
| 433 | #endif␍␊ |
| 434 | ␍␊ |
| 435 | /* This is the function that does the actual writing of data. If you are␍␊ |
| 436 | * not writing to a standard C stream, you should create a replacement␍␊ |
| 437 | * write_data function and use it at run time with png_set_write_fn(), rather␍␊ |
| 438 | * than changing the library.␍␊ |
| 439 | */␍␊ |
| 440 | #ifndef USE_FAR_KEYWORD␍␊ |
| 441 | static void PNGCBAPI␍␊ |
| 442 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)␍␊ |
| 443 | {␍␊ |
| 444 | png_size_t check;␍␊ |
| 445 | ␍␊ |
| 446 | check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr));␍␊ |
| 447 | ␍␊ |
| 448 | if (check != length)␍␊ |
| 449 | {␍␊ |
| 450 | png_error(png_ptr, "Write Error");␍␊ |
| 451 | }␍␊ |
| 452 | ␍␊ |
| 453 | #ifdef PNG_IO_STATE_SUPPORTED␍␊ |
| 454 | pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING);␍␊ |
| 455 | #endif␍␊ |
| 456 | }␍␊ |
| 457 | #else␍␊ |
| 458 | /* This is the model-independent version. Since the standard I/O library␍␊ |
| 459 | can't handle far buffers in the medium and small models, we have to copy␍␊ |
| 460 | the data.␍␊ |
| 461 | */␍␊ |
| 462 | ␍␊ |
| 463 | #define NEAR_BUF_SIZE 1024␍␊ |
| 464 | #define MIN(a,b) (a <= b ? a : b)␍␊ |
| 465 | ␍␊ |
| 466 | static void PNGCBAPI␍␊ |
| 467 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)␍␊ |
| 468 | {␍␊ |
| 469 | png_size_t check;␍␊ |
| 470 | png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */␍␊ |
| 471 | png_FILE_p io_ptr;␍␊ |
| 472 | ␍␊ |
| 473 | /* Check if data really is near. If so, use usual code. */␍␊ |
| 474 | near_data = (png_byte *)CVT_PTR_NOCHECK(data);␍␊ |
| 475 | io_ptr = (png_FILE_p)CVT_PTR(png_get_io_ptr(png_ptr));␍␊ |
| 476 | ␍␊ |
| 477 | if ((png_bytep)near_data == data)␍␊ |
| 478 | {␍␊ |
| 479 | check = fwrite(near_data, 1, length, io_ptr);␍␊ |
| 480 | }␍␊ |
| 481 | ␍␊ |
| 482 | else␍␊ |
| 483 | {␍␊ |
| 484 | png_byte buf[NEAR_BUF_SIZE];␍␊ |
| 485 | png_size_t written, remaining, err;␍␊ |
| 486 | check = 0;␍␊ |
| 487 | remaining = length;␍␊ |
| 488 | ␍␊ |
| 489 | do␍␊ |
| 490 | {␍␊ |
| 491 | written = MIN(NEAR_BUF_SIZE, remaining);␍␊ |
| 492 | png_memcpy(buf, data, written); /* Copy far buffer to near buffer */␍␊ |
| 493 | err = fwrite(buf, 1, written, io_ptr);␍␊ |
| 494 | if (err != written)␍␊ |
| 495 | break;␍␊ |
| 496 | else␍␊ |
| 497 | check += err;␍␊ |
| 498 | data += written;␍␊ |
| 499 | remaining -= written;␍␊ |
| 500 | }␍␊ |
| 501 | while (remaining != 0);␍␊ |
| 502 | }␍␊ |
| 503 | ␍␊ |
| 504 | if (check != length)␍␊ |
| 505 | {␍␊ |
| 506 | png_error(png_ptr, "Write Error");␍␊ |
| 507 | }␍␊ |
| 508 | ␍␊ |
| 509 | #ifdef PNG_IO_STATE_SUPPORTED␍␊ |
| 510 | pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING);␍␊ |
| 511 | #endif␍␊ |
| 512 | }␍␊ |
| 513 | #endif /* USE_FAR_KEYWORD */␍␊ |
| 514 | ␍␊ |
| 515 | /* This function is called when there is a warning, but the library thinks␍␊ |
| 516 | * it can continue anyway. Replacement functions don't have to do anything␍␊ |
| 517 | * here if you don't want to. In the default configuration, png_ptr is␍␊ |
| 518 | * not used, but it is passed in case it may be useful.␍␊ |
| 519 | */␍␊ |
| 520 | static void PNGCBAPI␍␊ |
| 521 | pngtest_warning(png_structp png_ptr, png_const_charp message)␍␊ |
| 522 | {␍␊ |
| 523 | PNG_CONST char *name = "UNKNOWN (ERROR!)";␍␊ |
| 524 | char *test;␍␊ |
| 525 | test = png_get_error_ptr(png_ptr);␍␊ |
| 526 | ␍␊ |
| 527 | if (test == NULL)␍␊ |
| 528 | fprintf(STDERR, "%s: libpng warning: %s\n", name, message);␍␊ |
| 529 | ␍␊ |
| 530 | else␍␊ |
| 531 | fprintf(STDERR, "%s: libpng warning: %s\n", test, message);␍␊ |
| 532 | }␍␊ |
| 533 | ␍␊ |
| 534 | /* This is the default error handling function. Note that replacements for␍␊ |
| 535 | * this function MUST NOT RETURN, or the program will likely crash. This␍␊ |
| 536 | * function is used by default, or if the program supplies NULL for the␍␊ |
| 537 | * error function pointer in png_set_error_fn().␍␊ |
| 538 | */␍␊ |
| 539 | static void PNGCBAPI␍␊ |
| 540 | pngtest_error(png_structp png_ptr, png_const_charp message)␍␊ |
| 541 | {␍␊ |
| 542 | pngtest_warning(png_ptr, message);␍␊ |
| 543 | /* We can return because png_error calls the default handler, which is␍␊ |
| 544 | * actually OK in this case.␍␊ |
| 545 | */␍␊ |
| 546 | }␍␊ |
| 547 | #endif /* !PNG_STDIO_SUPPORTED */␍␊ |
| 548 | /* END of code to validate stdio-free compilation */␍␊ |
| 549 | ␍␊ |
| 550 | /* START of code to validate memory allocation and deallocation */␍␊ |
| 551 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 552 | ␍␊ |
| 553 | /* Allocate memory. For reasonable files, size should never exceed␍␊ |
| 554 | * 64K. However, zlib may allocate more then 64K if you don't tell␍␊ |
| 555 | * it not to. See zconf.h and png.h for more information. zlib does␍␊ |
| 556 | * need to allocate exactly 64K, so whatever you call here must␍␊ |
| 557 | * have the ability to do that.␍␊ |
| 558 | *␍␊ |
| 559 | * This piece of code can be compiled to validate max 64K allocations␍␊ |
| 560 | * by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K.␍␊ |
| 561 | */␍␊ |
| 562 | typedef struct memory_information␍␊ |
| 563 | {␍␊ |
| 564 | png_alloc_size_t size;␍␊ |
| 565 | png_voidp pointer;␍␊ |
| 566 | struct memory_information FAR *next;␍␊ |
| 567 | } memory_information;␍␊ |
| 568 | typedef memory_information FAR *memory_infop;␍␊ |
| 569 | ␍␊ |
| 570 | static memory_infop pinformation = NULL;␍␊ |
| 571 | static int current_allocation = 0;␍␊ |
| 572 | static int maximum_allocation = 0;␍␊ |
| 573 | static int total_allocation = 0;␍␊ |
| 574 | static int num_allocations = 0;␍␊ |
| 575 | ␍␊ |
| 576 | png_voidp PNGCBAPI png_debug_malloc PNGARG((png_structp png_ptr,␍␊ |
| 577 | png_alloc_size_t size));␍␊ |
| 578 | void PNGCBAPI png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr));␍␊ |
| 579 | ␍␊ |
| 580 | png_voidp␍␊ |
| 581 | PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size)␍␊ |
| 582 | {␍␊ |
| 583 | ␍␊ |
| 584 | /* png_malloc has already tested for NULL; png_create_struct calls␍␊ |
| 585 | * png_debug_malloc directly, with png_ptr == NULL which is OK␍␊ |
| 586 | */␍␊ |
| 587 | ␍␊ |
| 588 | if (size == 0)␍␊ |
| 589 | return (NULL);␍␊ |
| 590 | ␍␊ |
| 591 | /* This calls the library allocator twice, once to get the requested␍␊ |
| 592 | buffer and once to get a new free list entry. */␍␊ |
| 593 | {␍␊ |
| 594 | /* Disable malloc_fn and free_fn */␍␊ |
| 595 | memory_infop pinfo;␍␊ |
| 596 | png_set_mem_fn(png_ptr, NULL, NULL, NULL);␍␊ |
| 597 | pinfo = (memory_infop)png_malloc(png_ptr,␍␊ |
| 598 | png_sizeof(*pinfo));␍␊ |
| 599 | pinfo->size = size;␍␊ |
| 600 | current_allocation += size;␍␊ |
| 601 | total_allocation += size;␍␊ |
| 602 | num_allocations ++;␍␊ |
| 603 | ␍␊ |
| 604 | if (current_allocation > maximum_allocation)␍␊ |
| 605 | maximum_allocation = current_allocation;␍␊ |
| 606 | ␍␊ |
| 607 | pinfo->pointer = png_malloc(png_ptr, size);␍␊ |
| 608 | /* Restore malloc_fn and free_fn */␍␊ |
| 609 | ␍␊ |
| 610 | png_set_mem_fn(png_ptr,␍␊ |
| 611 | NULL, png_debug_malloc, png_debug_free);␍␊ |
| 612 | ␍␊ |
| 613 | if (size != 0 && pinfo->pointer == NULL)␍␊ |
| 614 | {␍␊ |
| 615 | current_allocation -= size;␍␊ |
| 616 | total_allocation -= size;␍␊ |
| 617 | png_error(png_ptr,␍␊ |
| 618 | "out of memory in pngtest->png_debug_malloc");␍␊ |
| 619 | }␍␊ |
| 620 | ␍␊ |
| 621 | pinfo->next = pinformation;␍␊ |
| 622 | pinformation = pinfo;␍␊ |
| 623 | /* Make sure the caller isn't assuming zeroed memory. */␍␊ |
| 624 | png_memset(pinfo->pointer, 0xdd, pinfo->size);␍␊ |
| 625 | ␍␊ |
| 626 | if (verbose)␍␊ |
| 627 | printf("png_malloc %lu bytes at %p\n", (unsigned long)size,␍␊ |
| 628 | pinfo->pointer);␍␊ |
| 629 | ␍␊ |
| 630 | return (png_voidp)(pinfo->pointer);␍␊ |
| 631 | }␍␊ |
| 632 | }␍␊ |
| 633 | ␍␊ |
| 634 | /* Free a pointer. It is removed from the list at the same time. */␍␊ |
| 635 | void PNGCBAPI␍␊ |
| 636 | png_debug_free(png_structp png_ptr, png_voidp ptr)␍␊ |
| 637 | {␍␊ |
| 638 | if (png_ptr == NULL)␍␊ |
| 639 | fprintf(STDERR, "NULL pointer to png_debug_free.\n");␍␊ |
| 640 | ␍␊ |
| 641 | if (ptr == 0)␍␊ |
| 642 | {␍␊ |
| 643 | #if 0 /* This happens all the time. */␍␊ |
| 644 | fprintf(STDERR, "WARNING: freeing NULL pointer\n");␍␊ |
| 645 | #endif␍␊ |
| 646 | return;␍␊ |
| 647 | }␍␊ |
| 648 | ␍␊ |
| 649 | /* Unlink the element from the list. */␍␊ |
| 650 | {␍␊ |
| 651 | memory_infop FAR *ppinfo = &pinformation;␍␊ |
| 652 | ␍␊ |
| 653 | for (;;)␍␊ |
| 654 | {␍␊ |
| 655 | memory_infop pinfo = *ppinfo;␍␊ |
| 656 | ␍␊ |
| 657 | if (pinfo->pointer == ptr)␍␊ |
| 658 | {␍␊ |
| 659 | *ppinfo = pinfo->next;␍␊ |
| 660 | current_allocation -= pinfo->size;␍␊ |
| 661 | if (current_allocation < 0)␍␊ |
| 662 | fprintf(STDERR, "Duplicate free of memory\n");␍␊ |
| 663 | /* We must free the list element too, but first kill␍␊ |
| 664 | the memory that is to be freed. */␍␊ |
| 665 | png_memset(ptr, 0x55, pinfo->size);␍␊ |
| 666 | png_free_default(png_ptr, pinfo);␍␊ |
| 667 | pinfo = NULL;␍␊ |
| 668 | break;␍␊ |
| 669 | }␍␊ |
| 670 | ␍␊ |
| 671 | if (pinfo->next == NULL)␍␊ |
| 672 | {␍␊ |
| 673 | fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr);␍␊ |
| 674 | break;␍␊ |
| 675 | }␍␊ |
| 676 | ␍␊ |
| 677 | ppinfo = &pinfo->next;␍␊ |
| 678 | }␍␊ |
| 679 | }␍␊ |
| 680 | ␍␊ |
| 681 | /* Finally free the data. */␍␊ |
| 682 | if (verbose)␍␊ |
| 683 | printf("Freeing %p\n", ptr);␍␊ |
| 684 | ␍␊ |
| 685 | png_free_default(png_ptr, ptr);␍␊ |
| 686 | ptr = NULL;␍␊ |
| 687 | }␍␊ |
| 688 | #endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */␍␊ |
| 689 | /* END of code to test memory allocation/deallocation */␍␊ |
| 690 | ␍␊ |
| 691 | ␍␊ |
| 692 | /* Demonstration of user chunk support of the sTER and vpAg chunks */␍␊ |
| 693 | #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 694 | ␍␊ |
| 695 | /* (sTER is a public chunk not yet known by libpng. vpAg is a private␍␊ |
| 696 | chunk used in ImageMagick to store "virtual page" size). */␍␊ |
| 697 | ␍␊ |
| 698 | static png_uint_32 user_chunk_data[4];␍␊ |
| 699 | ␍␊ |
| 700 | /* 0: sTER mode + 1␍␊ |
| 701 | * 1: vpAg width␍␊ |
| 702 | * 2: vpAg height␍␊ |
| 703 | * 3: vpAg units␍␊ |
| 704 | */␍␊ |
| 705 | ␍␊ |
| 706 | static int PNGCBAPI read_user_chunk_callback(png_struct *png_ptr,␍␊ |
| 707 | png_unknown_chunkp chunk)␍␊ |
| 708 | {␍␊ |
| 709 | png_uint_32␍␊ |
| 710 | *my_user_chunk_data;␍␊ |
| 711 | ␍␊ |
| 712 | /* Return one of the following:␍␊ |
| 713 | * return (-n); chunk had an error␍␊ |
| 714 | * return (0); did not recognize␍␊ |
| 715 | * return (n); success␍␊ |
| 716 | *␍␊ |
| 717 | * The unknown chunk structure contains the chunk data:␍␊ |
| 718 | * png_byte name[5];␍␊ |
| 719 | * png_byte *data;␍␊ |
| 720 | * png_size_t size;␍␊ |
| 721 | *␍␊ |
| 722 | * Note that libpng has already taken care of the CRC handling.␍␊ |
| 723 | */␍␊ |
| 724 | ␍␊ |
| 725 | if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */␍␊ |
| 726 | chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */␍␊ |
| 727 | {␍␊ |
| 728 | /* Found sTER chunk */␍␊ |
| 729 | if (chunk->size != 1)␍␊ |
| 730 | return (-1); /* Error return */␍␊ |
| 731 | ␍␊ |
| 732 | if (chunk->data[0] != 0 && chunk->data[0] != 1)␍␊ |
| 733 | return (-1); /* Invalid mode */␍␊ |
| 734 | ␍␊ |
| 735 | my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);␍␊ |
| 736 | my_user_chunk_data[0]=chunk->data[0]+1;␍␊ |
| 737 | return (1);␍␊ |
| 738 | }␍␊ |
| 739 | ␍␊ |
| 740 | if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */␍␊ |
| 741 | chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */␍␊ |
| 742 | return (0); /* Did not recognize */␍␊ |
| 743 | ␍␊ |
| 744 | /* Found ImageMagick vpAg chunk */␍␊ |
| 745 | ␍␊ |
| 746 | if (chunk->size != 9)␍␊ |
| 747 | return (-1); /* Error return */␍␊ |
| 748 | ␍␊ |
| 749 | my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);␍␊ |
| 750 | ␍␊ |
| 751 | my_user_chunk_data[1]=png_get_uint_31(png_ptr, chunk->data);␍␊ |
| 752 | my_user_chunk_data[2]=png_get_uint_31(png_ptr, chunk->data + 4);␍␊ |
| 753 | my_user_chunk_data[3]=(png_uint_32)chunk->data[8];␍␊ |
| 754 | ␍␊ |
| 755 | return (1);␍␊ |
| 756 | ␍␊ |
| 757 | }␍␊ |
| 758 | #endif␍␊ |
| 759 | /* END of code to demonstrate user chunk support */␍␊ |
| 760 | ␍␊ |
| 761 | /* Test one file */␍␊ |
| 762 | int␍␊ |
| 763 | test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)␍␊ |
| 764 | {␍␊ |
| 765 | static png_FILE_p fpin;␍␊ |
| 766 | static png_FILE_p fpout; /* "static" prevents setjmp corruption */␍␊ |
| 767 | png_structp read_ptr;␍␊ |
| 768 | png_infop read_info_ptr, end_info_ptr;␍␊ |
| 769 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 770 | png_structp write_ptr;␍␊ |
| 771 | png_infop write_info_ptr;␍␊ |
| 772 | png_infop write_end_info_ptr;␍␊ |
| 773 | #else␍␊ |
| 774 | png_structp write_ptr = NULL;␍␊ |
| 775 | png_infop write_info_ptr = NULL;␍␊ |
| 776 | png_infop write_end_info_ptr = NULL;␍␊ |
| 777 | #endif␍␊ |
| 778 | png_bytep row_buf;␍␊ |
| 779 | png_uint_32 y;␍␊ |
| 780 | png_uint_32 width, height;␍␊ |
| 781 | int num_pass, pass;␍␊ |
| 782 | int bit_depth, color_type;␍␊ |
| 783 | #ifdef PNG_SETJMP_SUPPORTED␍␊ |
| 784 | #ifdef USE_FAR_KEYWORD␍␊ |
| 785 | jmp_buf tmp_jmpbuf;␍␊ |
| 786 | #endif␍␊ |
| 787 | #endif␍␊ |
| 788 | ␍␊ |
| 789 | char inbuf[256], outbuf[256];␍␊ |
| 790 | ␍␊ |
| 791 | row_buf = NULL;␍␊ |
| 792 | ␍␊ |
| 793 | if ((fpin = fopen(inname, "rb")) == NULL)␍␊ |
| 794 | {␍␊ |
| 795 | fprintf(STDERR, "Could not find input file %s\n", inname);␍␊ |
| 796 | return (1);␍␊ |
| 797 | }␍␊ |
| 798 | ␍␊ |
| 799 | if ((fpout = fopen(outname, "wb")) == NULL)␍␊ |
| 800 | {␍␊ |
| 801 | fprintf(STDERR, "Could not open output file %s\n", outname);␍␊ |
| 802 | FCLOSE(fpin);␍␊ |
| 803 | return (1);␍␊ |
| 804 | }␍␊ |
| 805 | ␍␊ |
| 806 | pngtest_debug("Allocating read and write structures");␍␊ |
| 807 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 808 | read_ptr =␍␊ |
| 809 | png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL,␍␊ |
| 810 | NULL, NULL, NULL, png_debug_malloc, png_debug_free);␍␊ |
| 811 | #else␍␊ |
| 812 | read_ptr =␍␊ |
| 813 | png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);␍␊ |
| 814 | #endif␍␊ |
| 815 | #ifndef PNG_STDIO_SUPPORTED␍␊ |
| 816 | png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error,␍␊ |
| 817 | pngtest_warning);␍␊ |
| 818 | #endif␍␊ |
| 819 | ␍␊ |
| 820 | #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 821 | user_chunk_data[0] = 0;␍␊ |
| 822 | user_chunk_data[1] = 0;␍␊ |
| 823 | user_chunk_data[2] = 0;␍␊ |
| 824 | user_chunk_data[3] = 0;␍␊ |
| 825 | png_set_read_user_chunk_fn(read_ptr, user_chunk_data,␍␊ |
| 826 | read_user_chunk_callback);␍␊ |
| 827 | ␍␊ |
| 828 | #endif␍␊ |
| 829 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 830 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 831 | write_ptr =␍␊ |
| 832 | png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL,␍␊ |
| 833 | NULL, NULL, NULL, png_debug_malloc, png_debug_free);␍␊ |
| 834 | #else␍␊ |
| 835 | write_ptr =␍␊ |
| 836 | png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);␍␊ |
| 837 | #endif␍␊ |
| 838 | #ifndef PNG_STDIO_SUPPORTED␍␊ |
| 839 | png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error,␍␊ |
| 840 | pngtest_warning);␍␊ |
| 841 | #endif␍␊ |
| 842 | #endif␍␊ |
| 843 | pngtest_debug("Allocating read_info, write_info and end_info structures");␍␊ |
| 844 | read_info_ptr = png_create_info_struct(read_ptr);␍␊ |
| 845 | end_info_ptr = png_create_info_struct(read_ptr);␍␊ |
| 846 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 847 | write_info_ptr = png_create_info_struct(write_ptr);␍␊ |
| 848 | write_end_info_ptr = png_create_info_struct(write_ptr);␍␊ |
| 849 | #endif␍␊ |
| 850 | ␍␊ |
| 851 | #ifdef PNG_SETJMP_SUPPORTED␍␊ |
| 852 | pngtest_debug("Setting jmpbuf for read struct");␍␊ |
| 853 | #ifdef USE_FAR_KEYWORD␍␊ |
| 854 | if (setjmp(tmp_jmpbuf))␍␊ |
| 855 | #else␍␊ |
| 856 | if (setjmp(png_jmpbuf(read_ptr)))␍␊ |
| 857 | #endif␍␊ |
| 858 | {␍␊ |
| 859 | fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname);␍␊ |
| 860 | png_free(read_ptr, row_buf);␍␊ |
| 861 | row_buf = NULL;␍␊ |
| 862 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);␍␊ |
| 863 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 864 | png_destroy_info_struct(write_ptr, &write_end_info_ptr);␍␊ |
| 865 | png_destroy_write_struct(&write_ptr, &write_info_ptr);␍␊ |
| 866 | #endif␍␊ |
| 867 | FCLOSE(fpin);␍␊ |
| 868 | FCLOSE(fpout);␍␊ |
| 869 | return (1);␍␊ |
| 870 | }␍␊ |
| 871 | #ifdef USE_FAR_KEYWORD␍␊ |
| 872 | png_memcpy(png_jmpbuf(read_ptr), tmp_jmpbuf, png_sizeof(jmp_buf));␍␊ |
| 873 | #endif␍␊ |
| 874 | ␍␊ |
| 875 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 876 | pngtest_debug("Setting jmpbuf for write struct");␍␊ |
| 877 | #ifdef USE_FAR_KEYWORD␍␊ |
| 878 | ␍␊ |
| 879 | if (setjmp(tmp_jmpbuf))␍␊ |
| 880 | #else␍␊ |
| 881 | if (setjmp(png_jmpbuf(write_ptr)))␍␊ |
| 882 | #endif␍␊ |
| 883 | {␍␊ |
| 884 | fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname);␍␊ |
| 885 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);␍␊ |
| 886 | png_destroy_info_struct(write_ptr, &write_end_info_ptr);␍␊ |
| 887 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 888 | png_destroy_write_struct(&write_ptr, &write_info_ptr);␍␊ |
| 889 | #endif␍␊ |
| 890 | FCLOSE(fpin);␍␊ |
| 891 | FCLOSE(fpout);␍␊ |
| 892 | return (1);␍␊ |
| 893 | }␍␊ |
| 894 | ␍␊ |
| 895 | #ifdef USE_FAR_KEYWORD␍␊ |
| 896 | png_memcpy(png_jmpbuf(write_ptr), tmp_jmpbuf, png_sizeof(jmp_buf));␍␊ |
| 897 | #endif␍␊ |
| 898 | #endif␍␊ |
| 899 | #endif␍␊ |
| 900 | ␍␊ |
| 901 | pngtest_debug("Initializing input and output streams");␍␊ |
| 902 | #ifdef PNG_STDIO_SUPPORTED␍␊ |
| 903 | png_init_io(read_ptr, fpin);␍␊ |
| 904 | # ifdef PNG_WRITE_SUPPORTED␍␊ |
| 905 | png_init_io(write_ptr, fpout);␍␊ |
| 906 | # endif␍␊ |
| 907 | #else␍␊ |
| 908 | png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data);␍␊ |
| 909 | # ifdef PNG_WRITE_SUPPORTED␍␊ |
| 910 | png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data,␍␊ |
| 911 | # ifdef PNG_WRITE_FLUSH_SUPPORTED␍␊ |
| 912 | pngtest_flush);␍␊ |
| 913 | # else␍␊ |
| 914 | NULL);␍␊ |
| 915 | # endif␍␊ |
| 916 | # endif␍␊ |
| 917 | #endif␍␊ |
| 918 | ␍␊ |
| 919 | #ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED␍␊ |
| 920 | /* Normally one would use Z_DEFAULT_STRATEGY for text compression.␍␊ |
| 921 | * This is here just to make pngtest replicate the results from libpng␍␊ |
| 922 | * versions prior to 1.5.4, and to test this new API.␍␊ |
| 923 | */␍␊ |
| 924 | png_set_text_compression_strategy(write_ptr, Z_FILTERED);␍␊ |
| 925 | #endif␍␊ |
| 926 | ␍␊ |
| 927 | if (status_dots_requested == 1)␍␊ |
| 928 | {␍␊ |
| 929 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 930 | png_set_write_status_fn(write_ptr, write_row_callback);␍␊ |
| 931 | #endif␍␊ |
| 932 | png_set_read_status_fn(read_ptr, read_row_callback);␍␊ |
| 933 | }␍␊ |
| 934 | ␍␊ |
| 935 | else␍␊ |
| 936 | {␍␊ |
| 937 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 938 | png_set_write_status_fn(write_ptr, NULL);␍␊ |
| 939 | #endif␍␊ |
| 940 | png_set_read_status_fn(read_ptr, NULL);␍␊ |
| 941 | }␍␊ |
| 942 | ␍␊ |
| 943 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED␍␊ |
| 944 | {␍␊ |
| 945 | int i;␍␊ |
| 946 | ␍␊ |
| 947 | for (i = 0; i<256; i++)␍␊ |
| 948 | filters_used[i] = 0;␍␊ |
| 949 | ␍␊ |
| 950 | png_set_read_user_transform_fn(read_ptr, count_filters);␍␊ |
| 951 | }␍␊ |
| 952 | #endif␍␊ |
| 953 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED␍␊ |
| 954 | zero_samples = 0;␍␊ |
| 955 | png_set_write_user_transform_fn(write_ptr, count_zero_samples);␍␊ |
| 956 | #endif␍␊ |
| 957 | ␍␊ |
| 958 | #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 959 | # ifndef PNG_HANDLE_CHUNK_ALWAYS␍␊ |
| 960 | # define PNG_HANDLE_CHUNK_ALWAYS 3␍␊ |
| 961 | # endif␍␊ |
| 962 | png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,␍␊ |
| 963 | NULL, 0);␍␊ |
| 964 | #endif␍␊ |
| 965 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 966 | # ifndef PNG_HANDLE_CHUNK_IF_SAFE␍␊ |
| 967 | # define PNG_HANDLE_CHUNK_IF_SAFE 2␍␊ |
| 968 | # endif␍␊ |
| 969 | png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_IF_SAFE,␍␊ |
| 970 | NULL, 0);␍␊ |
| 971 | #endif␍␊ |
| 972 | ␍␊ |
| 973 | pngtest_debug("Reading info struct");␍␊ |
| 974 | png_read_info(read_ptr, read_info_ptr);␍␊ |
| 975 | ␍␊ |
| 976 | pngtest_debug("Transferring info struct");␍␊ |
| 977 | {␍␊ |
| 978 | int interlace_type, compression_type, filter_type;␍␊ |
| 979 | ␍␊ |
| 980 | if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth,␍␊ |
| 981 | &color_type, &interlace_type, &compression_type, &filter_type))␍␊ |
| 982 | {␍␊ |
| 983 | png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,␍␊ |
| 984 | #ifdef PNG_WRITE_INTERLACING_SUPPORTED␍␊ |
| 985 | color_type, interlace_type, compression_type, filter_type);␍␊ |
| 986 | #else␍␊ |
| 987 | color_type, PNG_INTERLACE_NONE, compression_type, filter_type);␍␊ |
| 988 | #endif␍␊ |
| 989 | }␍␊ |
| 990 | }␍␊ |
| 991 | #ifdef PNG_FIXED_POINT_SUPPORTED␍␊ |
| 992 | #ifdef PNG_cHRM_SUPPORTED␍␊ |
| 993 | {␍␊ |
| 994 | png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,␍␊ |
| 995 | blue_y;␍␊ |
| 996 | ␍␊ |
| 997 | if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y,␍␊ |
| 998 | &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y))␍␊ |
| 999 | {␍␊ |
| 1000 | png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,␍␊ |
| 1001 | red_y, green_x, green_y, blue_x, blue_y);␍␊ |
| 1002 | }␍␊ |
| 1003 | }␍␊ |
| 1004 | #endif␍␊ |
| 1005 | #ifdef PNG_gAMA_SUPPORTED␍␊ |
| 1006 | {␍␊ |
| 1007 | png_fixed_point gamma;␍␊ |
| 1008 | ␍␊ |
| 1009 | if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma))␍␊ |
| 1010 | png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma);␍␊ |
| 1011 | }␍␊ |
| 1012 | #endif␍␊ |
| 1013 | #else /* Use floating point versions */␍␊ |
| 1014 | #ifdef PNG_FLOATING_POINT_SUPPORTED␍␊ |
| 1015 | #ifdef PNG_cHRM_SUPPORTED␍␊ |
| 1016 | {␍␊ |
| 1017 | double white_x, white_y, red_x, red_y, green_x, green_y, blue_x,␍␊ |
| 1018 | blue_y;␍␊ |
| 1019 | ␍␊ |
| 1020 | if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,␍␊ |
| 1021 | &red_y, &green_x, &green_y, &blue_x, &blue_y))␍␊ |
| 1022 | {␍␊ |
| 1023 | png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x,␍␊ |
| 1024 | red_y, green_x, green_y, blue_x, blue_y);␍␊ |
| 1025 | }␍␊ |
| 1026 | }␍␊ |
| 1027 | #endif␍␊ |
| 1028 | #ifdef PNG_gAMA_SUPPORTED␍␊ |
| 1029 | {␍␊ |
| 1030 | double gamma;␍␊ |
| 1031 | ␍␊ |
| 1032 | if (png_get_gAMA(read_ptr, read_info_ptr, &gamma))␍␊ |
| 1033 | png_set_gAMA(write_ptr, write_info_ptr, gamma);␍␊ |
| 1034 | }␍␊ |
| 1035 | #endif␍␊ |
| 1036 | #endif /* Floating point */␍␊ |
| 1037 | #endif /* Fixed point */␍␊ |
| 1038 | #ifdef PNG_iCCP_SUPPORTED␍␊ |
| 1039 | {␍␊ |
| 1040 | png_charp name;␍␊ |
| 1041 | png_bytep profile;␍␊ |
| 1042 | png_uint_32 proflen;␍␊ |
| 1043 | int compression_type;␍␊ |
| 1044 | ␍␊ |
| 1045 | if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,␍␊ |
| 1046 | &profile, &proflen))␍␊ |
| 1047 | {␍␊ |
| 1048 | png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,␍␊ |
| 1049 | profile, proflen);␍␊ |
| 1050 | }␍␊ |
| 1051 | }␍␊ |
| 1052 | #endif␍␊ |
| 1053 | #ifdef PNG_sRGB_SUPPORTED␍␊ |
| 1054 | {␍␊ |
| 1055 | int intent;␍␊ |
| 1056 | ␍␊ |
| 1057 | if (png_get_sRGB(read_ptr, read_info_ptr, &intent))␍␊ |
| 1058 | png_set_sRGB(write_ptr, write_info_ptr, intent);␍␊ |
| 1059 | }␍␊ |
| 1060 | #endif␍␊ |
| 1061 | {␍␊ |
| 1062 | png_colorp palette;␍␊ |
| 1063 | int num_palette;␍␊ |
| 1064 | ␍␊ |
| 1065 | if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette))␍␊ |
| 1066 | png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette);␍␊ |
| 1067 | }␍␊ |
| 1068 | #ifdef PNG_bKGD_SUPPORTED␍␊ |
| 1069 | {␍␊ |
| 1070 | png_color_16p background;␍␊ |
| 1071 | ␍␊ |
| 1072 | if (png_get_bKGD(read_ptr, read_info_ptr, &background))␍␊ |
| 1073 | {␍␊ |
| 1074 | png_set_bKGD(write_ptr, write_info_ptr, background);␍␊ |
| 1075 | }␍␊ |
| 1076 | }␍␊ |
| 1077 | #endif␍␊ |
| 1078 | #ifdef PNG_hIST_SUPPORTED␍␊ |
| 1079 | {␍␊ |
| 1080 | png_uint_16p hist;␍␊ |
| 1081 | ␍␊ |
| 1082 | if (png_get_hIST(read_ptr, read_info_ptr, &hist))␍␊ |
| 1083 | png_set_hIST(write_ptr, write_info_ptr, hist);␍␊ |
| 1084 | }␍␊ |
| 1085 | #endif␍␊ |
| 1086 | #ifdef PNG_oFFs_SUPPORTED␍␊ |
| 1087 | {␍␊ |
| 1088 | png_int_32 offset_x, offset_y;␍␊ |
| 1089 | int unit_type;␍␊ |
| 1090 | ␍␊ |
| 1091 | if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y,␍␊ |
| 1092 | &unit_type))␍␊ |
| 1093 | {␍␊ |
| 1094 | png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);␍␊ |
| 1095 | }␍␊ |
| 1096 | }␍␊ |
| 1097 | #endif␍␊ |
| 1098 | #ifdef PNG_pCAL_SUPPORTED␍␊ |
| 1099 | {␍␊ |
| 1100 | png_charp purpose, units;␍␊ |
| 1101 | png_charpp params;␍␊ |
| 1102 | png_int_32 X0, X1;␍␊ |
| 1103 | int type, nparams;␍␊ |
| 1104 | ␍␊ |
| 1105 | if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type,␍␊ |
| 1106 | &nparams, &units, ¶ms))␍␊ |
| 1107 | {␍␊ |
| 1108 | png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type,␍␊ |
| 1109 | nparams, units, params);␍␊ |
| 1110 | }␍␊ |
| 1111 | }␍␊ |
| 1112 | #endif␍␊ |
| 1113 | #ifdef PNG_pHYs_SUPPORTED␍␊ |
| 1114 | {␍␊ |
| 1115 | png_uint_32 res_x, res_y;␍␊ |
| 1116 | int unit_type;␍␊ |
| 1117 | ␍␊ |
| 1118 | if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type))␍␊ |
| 1119 | png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type);␍␊ |
| 1120 | }␍␊ |
| 1121 | #endif␍␊ |
| 1122 | #ifdef PNG_sBIT_SUPPORTED␍␊ |
| 1123 | {␍␊ |
| 1124 | png_color_8p sig_bit;␍␊ |
| 1125 | ␍␊ |
| 1126 | if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit))␍␊ |
| 1127 | png_set_sBIT(write_ptr, write_info_ptr, sig_bit);␍␊ |
| 1128 | }␍␊ |
| 1129 | #endif␍␊ |
| 1130 | #ifdef PNG_sCAL_SUPPORTED␍␊ |
| 1131 | #ifdef PNG_FLOATING_POINT_SUPPORTED␍␊ |
| 1132 | {␍␊ |
| 1133 | int unit;␍␊ |
| 1134 | double scal_width, scal_height;␍␊ |
| 1135 | ␍␊ |
| 1136 | if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,␍␊ |
| 1137 | &scal_height))␍␊ |
| 1138 | {␍␊ |
| 1139 | png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);␍␊ |
| 1140 | }␍␊ |
| 1141 | }␍␊ |
| 1142 | #else␍␊ |
| 1143 | #ifdef PNG_FIXED_POINT_SUPPORTED␍␊ |
| 1144 | {␍␊ |
| 1145 | int unit;␍␊ |
| 1146 | png_charp scal_width, scal_height;␍␊ |
| 1147 | ␍␊ |
| 1148 | if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,␍␊ |
| 1149 | &scal_height))␍␊ |
| 1150 | {␍␊ |
| 1151 | png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width,␍␊ |
| 1152 | scal_height);␍␊ |
| 1153 | }␍␊ |
| 1154 | }␍␊ |
| 1155 | #endif␍␊ |
| 1156 | #endif␍␊ |
| 1157 | #endif␍␊ |
| 1158 | #ifdef PNG_TEXT_SUPPORTED␍␊ |
| 1159 | {␍␊ |
| 1160 | png_textp text_ptr;␍␊ |
| 1161 | int num_text;␍␊ |
| 1162 | ␍␊ |
| 1163 | if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0)␍␊ |
| 1164 | {␍␊ |
| 1165 | pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text);␍␊ |
| 1166 | ␍␊ |
| 1167 | if (verbose)␍␊ |
| 1168 | printf("\n Text compression=%d\n", text_ptr->compression);␍␊ |
| 1169 | ␍␊ |
| 1170 | png_set_text(write_ptr, write_info_ptr, text_ptr, num_text);␍␊ |
| 1171 | }␍␊ |
| 1172 | }␍␊ |
| 1173 | #endif␍␊ |
| 1174 | #ifdef PNG_tIME_SUPPORTED␍␊ |
| 1175 | {␍␊ |
| 1176 | png_timep mod_time;␍␊ |
| 1177 | ␍␊ |
| 1178 | if (png_get_tIME(read_ptr, read_info_ptr, &mod_time))␍␊ |
| 1179 | {␍␊ |
| 1180 | png_set_tIME(write_ptr, write_info_ptr, mod_time);␍␊ |
| 1181 | #ifdef PNG_TIME_RFC1123_SUPPORTED␍␊ |
| 1182 | /* We have to use png_memcpy instead of "=" because the string␍␊ |
| 1183 | * pointed to by png_convert_to_rfc1123() gets free'ed before␍␊ |
| 1184 | * we use it.␍␊ |
| 1185 | */␍␊ |
| 1186 | png_memcpy(tIME_string,␍␊ |
| 1187 | png_convert_to_rfc1123(read_ptr, mod_time),␍␊ |
| 1188 | png_sizeof(tIME_string));␍␊ |
| 1189 | ␍␊ |
| 1190 | tIME_string[png_sizeof(tIME_string) - 1] = '\0';␍␊ |
| 1191 | tIME_chunk_present++;␍␊ |
| 1192 | #endif /* PNG_TIME_RFC1123_SUPPORTED */␍␊ |
| 1193 | }␍␊ |
| 1194 | }␍␊ |
| 1195 | #endif␍␊ |
| 1196 | #ifdef PNG_tRNS_SUPPORTED␍␊ |
| 1197 | {␍␊ |
| 1198 | png_bytep trans_alpha;␍␊ |
| 1199 | int num_trans;␍␊ |
| 1200 | png_color_16p trans_color;␍␊ |
| 1201 | ␍␊ |
| 1202 | if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans,␍␊ |
| 1203 | &trans_color))␍␊ |
| 1204 | {␍␊ |
| 1205 | int sample_max = (1 << bit_depth);␍␊ |
| 1206 | /* libpng doesn't reject a tRNS chunk with out-of-range samples */␍␊ |
| 1207 | if (!((color_type == PNG_COLOR_TYPE_GRAY &&␍␊ |
| 1208 | (int)trans_color->gray > sample_max) ||␍␊ |
| 1209 | (color_type == PNG_COLOR_TYPE_RGB &&␍␊ |
| 1210 | ((int)trans_color->red > sample_max ||␍␊ |
| 1211 | (int)trans_color->green > sample_max ||␍␊ |
| 1212 | (int)trans_color->blue > sample_max))))␍␊ |
| 1213 | png_set_tRNS(write_ptr, write_info_ptr, trans_alpha, num_trans,␍␊ |
| 1214 | trans_color);␍␊ |
| 1215 | }␍␊ |
| 1216 | }␍␊ |
| 1217 | #endif␍␊ |
| 1218 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 1219 | {␍␊ |
| 1220 | png_unknown_chunkp unknowns;␍␊ |
| 1221 | int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr,␍␊ |
| 1222 | &unknowns);␍␊ |
| 1223 | ␍␊ |
| 1224 | if (num_unknowns)␍␊ |
| 1225 | {␍␊ |
| 1226 | int i;␍␊ |
| 1227 | png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns,␍␊ |
| 1228 | num_unknowns);␍␊ |
| 1229 | /* Copy the locations from the read_info_ptr. The automatically␍␊ |
| 1230 | * generated locations in write_info_ptr are wrong because we␍␊ |
| 1231 | * haven't written anything yet.␍␊ |
| 1232 | */␍␊ |
| 1233 | for (i = 0; i < num_unknowns; i++)␍␊ |
| 1234 | png_set_unknown_chunk_location(write_ptr, write_info_ptr, i,␍␊ |
| 1235 | unknowns[i].location);␍␊ |
| 1236 | }␍␊ |
| 1237 | }␍␊ |
| 1238 | #endif␍␊ |
| 1239 | ␍␊ |
| 1240 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 1241 | pngtest_debug("Writing info struct");␍␊ |
| 1242 | ␍␊ |
| 1243 | /* If we wanted, we could write info in two steps:␍␊ |
| 1244 | * png_write_info_before_PLTE(write_ptr, write_info_ptr);␍␊ |
| 1245 | */␍␊ |
| 1246 | png_write_info(write_ptr, write_info_ptr);␍␊ |
| 1247 | ␍␊ |
| 1248 | #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 1249 | if (user_chunk_data[0] != 0)␍␊ |
| 1250 | {␍␊ |
| 1251 | png_byte png_sTER[5] = {115, 84, 69, 82, '\0'};␍␊ |
| 1252 | ␍␊ |
| 1253 | unsigned char␍␊ |
| 1254 | ster_chunk_data[1];␍␊ |
| 1255 | ␍␊ |
| 1256 | if (verbose)␍␊ |
| 1257 | fprintf(STDERR, "\n stereo mode = %lu\n",␍␊ |
| 1258 | (unsigned long)(user_chunk_data[0] - 1));␍␊ |
| 1259 | ␍␊ |
| 1260 | ster_chunk_data[0]=(unsigned char)(user_chunk_data[0] - 1);␍␊ |
| 1261 | png_write_chunk(write_ptr, png_sTER, ster_chunk_data, 1);␍␊ |
| 1262 | }␍␊ |
| 1263 | ␍␊ |
| 1264 | if (user_chunk_data[1] != 0 || user_chunk_data[2] != 0)␍␊ |
| 1265 | {␍␊ |
| 1266 | png_byte png_vpAg[5] = {118, 112, 65, 103, '\0'};␍␊ |
| 1267 | ␍␊ |
| 1268 | unsigned char␍␊ |
| 1269 | vpag_chunk_data[9];␍␊ |
| 1270 | ␍␊ |
| 1271 | if (verbose)␍␊ |
| 1272 | fprintf(STDERR, " vpAg = %lu x %lu, units = %lu\n",␍␊ |
| 1273 | (unsigned long)user_chunk_data[1],␍␊ |
| 1274 | (unsigned long)user_chunk_data[2],␍␊ |
| 1275 | (unsigned long)user_chunk_data[3]);␍␊ |
| 1276 | ␍␊ |
| 1277 | png_save_uint_32(vpag_chunk_data, user_chunk_data[1]);␍␊ |
| 1278 | png_save_uint_32(vpag_chunk_data + 4, user_chunk_data[2]);␍␊ |
| 1279 | vpag_chunk_data[8] = (unsigned char)(user_chunk_data[3] & 0xff);␍␊ |
| 1280 | png_write_chunk(write_ptr, png_vpAg, vpag_chunk_data, 9);␍␊ |
| 1281 | }␍␊ |
| 1282 | ␍␊ |
| 1283 | #endif␍␊ |
| 1284 | #endif␍␊ |
| 1285 | ␍␊ |
| 1286 | #ifdef SINGLE_ROWBUF_ALLOC␍␊ |
| 1287 | pngtest_debug("Allocating row buffer...");␍␊ |
| 1288 | row_buf = (png_bytep)png_malloc(read_ptr,␍␊ |
| 1289 | png_get_rowbytes(read_ptr, read_info_ptr));␍␊ |
| 1290 | ␍␊ |
| 1291 | pngtest_debug1("\t0x%08lx", (unsigned long)row_buf);␍␊ |
| 1292 | #endif /* SINGLE_ROWBUF_ALLOC */␍␊ |
| 1293 | pngtest_debug("Writing row data");␍␊ |
| 1294 | ␍␊ |
| 1295 | #if defined(PNG_READ_INTERLACING_SUPPORTED) || \␍␊ |
| 1296 | defined(PNG_WRITE_INTERLACING_SUPPORTED)␍␊ |
| 1297 | num_pass = png_set_interlace_handling(read_ptr);␍␊ |
| 1298 | # ifdef PNG_WRITE_SUPPORTED␍␊ |
| 1299 | png_set_interlace_handling(write_ptr);␍␊ |
| 1300 | # endif␍␊ |
| 1301 | #else␍␊ |
| 1302 | num_pass = 1;␍␊ |
| 1303 | #endif␍␊ |
| 1304 | ␍␊ |
| 1305 | #ifdef PNGTEST_TIMING␍␊ |
| 1306 | t_stop = (float)clock();␍␊ |
| 1307 | t_misc += (t_stop - t_start);␍␊ |
| 1308 | t_start = t_stop;␍␊ |
| 1309 | #endif␍␊ |
| 1310 | for (pass = 0; pass < num_pass; pass++)␍␊ |
| 1311 | {␍␊ |
| 1312 | pngtest_debug1("Writing row data for pass %d", pass);␍␊ |
| 1313 | for (y = 0; y < height; y++)␍␊ |
| 1314 | {␍␊ |
| 1315 | #ifndef SINGLE_ROWBUF_ALLOC␍␊ |
| 1316 | pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y);␍␊ |
| 1317 | row_buf = (png_bytep)png_malloc(read_ptr,␍␊ |
| 1318 | png_get_rowbytes(read_ptr, read_info_ptr));␍␊ |
| 1319 | ␍␊ |
| 1320 | pngtest_debug2("\t0x%08lx (%u bytes)", (unsigned long)row_buf,␍␊ |
| 1321 | png_get_rowbytes(read_ptr, read_info_ptr));␍␊ |
| 1322 | ␍␊ |
| 1323 | #endif /* !SINGLE_ROWBUF_ALLOC */␍␊ |
| 1324 | png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1);␍␊ |
| 1325 | ␍␊ |
| 1326 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 1327 | #ifdef PNGTEST_TIMING␍␊ |
| 1328 | t_stop = (float)clock();␍␊ |
| 1329 | t_decode += (t_stop - t_start);␍␊ |
| 1330 | t_start = t_stop;␍␊ |
| 1331 | #endif␍␊ |
| 1332 | png_write_rows(write_ptr, (png_bytepp)&row_buf, 1);␍␊ |
| 1333 | #ifdef PNGTEST_TIMING␍␊ |
| 1334 | t_stop = (float)clock();␍␊ |
| 1335 | t_encode += (t_stop - t_start);␍␊ |
| 1336 | t_start = t_stop;␍␊ |
| 1337 | #endif␍␊ |
| 1338 | #endif /* PNG_WRITE_SUPPORTED */␍␊ |
| 1339 | ␍␊ |
| 1340 | #ifndef SINGLE_ROWBUF_ALLOC␍␊ |
| 1341 | pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y);␍␊ |
| 1342 | png_free(read_ptr, row_buf);␍␊ |
| 1343 | row_buf = NULL;␍␊ |
| 1344 | #endif /* !SINGLE_ROWBUF_ALLOC */␍␊ |
| 1345 | }␍␊ |
| 1346 | }␍␊ |
| 1347 | ␍␊ |
| 1348 | #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 1349 | png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);␍␊ |
| 1350 | #endif␍␊ |
| 1351 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 1352 | png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);␍␊ |
| 1353 | #endif␍␊ |
| 1354 | ␍␊ |
| 1355 | pngtest_debug("Reading and writing end_info data");␍␊ |
| 1356 | ␍␊ |
| 1357 | png_read_end(read_ptr, end_info_ptr);␍␊ |
| 1358 | #ifdef PNG_TEXT_SUPPORTED␍␊ |
| 1359 | {␍␊ |
| 1360 | png_textp text_ptr;␍␊ |
| 1361 | int num_text;␍␊ |
| 1362 | ␍␊ |
| 1363 | if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0)␍␊ |
| 1364 | {␍␊ |
| 1365 | pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text);␍␊ |
| 1366 | png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text);␍␊ |
| 1367 | }␍␊ |
| 1368 | }␍␊ |
| 1369 | #endif␍␊ |
| 1370 | #ifdef PNG_tIME_SUPPORTED␍␊ |
| 1371 | {␍␊ |
| 1372 | png_timep mod_time;␍␊ |
| 1373 | ␍␊ |
| 1374 | if (png_get_tIME(read_ptr, end_info_ptr, &mod_time))␍␊ |
| 1375 | {␍␊ |
| 1376 | png_set_tIME(write_ptr, write_end_info_ptr, mod_time);␍␊ |
| 1377 | #ifdef PNG_TIME_RFC1123_SUPPORTED␍␊ |
| 1378 | /* We have to use png_memcpy instead of "=" because the string␍␊ |
| 1379 | pointed to by png_convert_to_rfc1123() gets free'ed before␍␊ |
| 1380 | we use it */␍␊ |
| 1381 | png_memcpy(tIME_string,␍␊ |
| 1382 | png_convert_to_rfc1123(read_ptr, mod_time),␍␊ |
| 1383 | png_sizeof(tIME_string));␍␊ |
| 1384 | ␍␊ |
| 1385 | tIME_string[png_sizeof(tIME_string) - 1] = '\0';␍␊ |
| 1386 | tIME_chunk_present++;␍␊ |
| 1387 | #endif /* PNG_TIME_RFC1123_SUPPORTED */␍␊ |
| 1388 | }␍␊ |
| 1389 | }␍␊ |
| 1390 | #endif␍␊ |
| 1391 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED␍␊ |
| 1392 | {␍␊ |
| 1393 | png_unknown_chunkp unknowns;␍␊ |
| 1394 | int num_unknowns = png_get_unknown_chunks(read_ptr, end_info_ptr,␍␊ |
| 1395 | &unknowns);␍␊ |
| 1396 | ␍␊ |
| 1397 | if (num_unknowns)␍␊ |
| 1398 | {␍␊ |
| 1399 | int i;␍␊ |
| 1400 | png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns,␍␊ |
| 1401 | num_unknowns);␍␊ |
| 1402 | /* Copy the locations from the read_info_ptr. The automatically␍␊ |
| 1403 | * generated locations in write_end_info_ptr are wrong because we␍␊ |
| 1404 | * haven't written the end_info yet.␍␊ |
| 1405 | */␍␊ |
| 1406 | for (i = 0; i < num_unknowns; i++)␍␊ |
| 1407 | png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i,␍␊ |
| 1408 | unknowns[i].location);␍␊ |
| 1409 | }␍␊ |
| 1410 | }␍␊ |
| 1411 | #endif␍␊ |
| 1412 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 1413 | png_write_end(write_ptr, write_end_info_ptr);␍␊ |
| 1414 | #endif␍␊ |
| 1415 | ␍␊ |
| 1416 | #ifdef PNG_EASY_ACCESS_SUPPORTED␍␊ |
| 1417 | if (verbose)␍␊ |
| 1418 | {␍␊ |
| 1419 | png_uint_32 iwidth, iheight;␍␊ |
| 1420 | iwidth = png_get_image_width(write_ptr, write_info_ptr);␍␊ |
| 1421 | iheight = png_get_image_height(write_ptr, write_info_ptr);␍␊ |
| 1422 | fprintf(STDERR, "\n Image width = %lu, height = %lu\n",␍␊ |
| 1423 | (unsigned long)iwidth, (unsigned long)iheight);␍␊ |
| 1424 | }␍␊ |
| 1425 | #endif␍␊ |
| 1426 | ␍␊ |
| 1427 | pngtest_debug("Destroying data structs");␍␊ |
| 1428 | #ifdef SINGLE_ROWBUF_ALLOC␍␊ |
| 1429 | pngtest_debug("destroying row_buf for read_ptr");␍␊ |
| 1430 | png_free(read_ptr, row_buf);␍␊ |
| 1431 | row_buf = NULL;␍␊ |
| 1432 | #endif /* SINGLE_ROWBUF_ALLOC */␍␊ |
| 1433 | pngtest_debug("destroying read_ptr, read_info_ptr, end_info_ptr");␍␊ |
| 1434 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);␍␊ |
| 1435 | #ifdef PNG_WRITE_SUPPORTED␍␊ |
| 1436 | pngtest_debug("destroying write_end_info_ptr");␍␊ |
| 1437 | png_destroy_info_struct(write_ptr, &write_end_info_ptr);␍␊ |
| 1438 | pngtest_debug("destroying write_ptr, write_info_ptr");␍␊ |
| 1439 | png_destroy_write_struct(&write_ptr, &write_info_ptr);␍␊ |
| 1440 | #endif␍␊ |
| 1441 | pngtest_debug("Destruction complete.");␍␊ |
| 1442 | ␍␊ |
| 1443 | FCLOSE(fpin);␍␊ |
| 1444 | FCLOSE(fpout);␍␊ |
| 1445 | ␍␊ |
| 1446 | pngtest_debug("Opening files for comparison");␍␊ |
| 1447 | if ((fpin = fopen(inname, "rb")) == NULL)␍␊ |
| 1448 | {␍␊ |
| 1449 | fprintf(STDERR, "Could not find file %s\n", inname);␍␊ |
| 1450 | return (1);␍␊ |
| 1451 | }␍␊ |
| 1452 | ␍␊ |
| 1453 | if ((fpout = fopen(outname, "rb")) == NULL)␍␊ |
| 1454 | {␍␊ |
| 1455 | fprintf(STDERR, "Could not find file %s\n", outname);␍␊ |
| 1456 | FCLOSE(fpin);␍␊ |
| 1457 | return (1);␍␊ |
| 1458 | }␍␊ |
| 1459 | ␍␊ |
| 1460 | for (;;)␍␊ |
| 1461 | {␍␊ |
| 1462 | png_size_t num_in, num_out;␍␊ |
| 1463 | ␍␊ |
| 1464 | num_in = fread(inbuf, 1, 1, fpin);␍␊ |
| 1465 | num_out = fread(outbuf, 1, 1, fpout);␍␊ |
| 1466 | ␍␊ |
| 1467 | if (num_in != num_out)␍␊ |
| 1468 | {␍␊ |
| 1469 | fprintf(STDERR, "\nFiles %s and %s are of a different size\n",␍␊ |
| 1470 | inname, outname);␍␊ |
| 1471 | ␍␊ |
| 1472 | if (wrote_question == 0)␍␊ |
| 1473 | {␍␊ |
| 1474 | fprintf(STDERR,␍␊ |
| 1475 | " Was %s written with the same maximum IDAT chunk size (%d bytes),",␍␊ |
| 1476 | inname, PNG_ZBUF_SIZE);␍␊ |
| 1477 | fprintf(STDERR,␍␊ |
| 1478 | "\n filtering heuristic (libpng default), compression");␍␊ |
| 1479 | fprintf(STDERR,␍␊ |
| 1480 | " level (zlib default),\n and zlib version (%s)?\n\n",␍␊ |
| 1481 | ZLIB_VERSION);␍␊ |
| 1482 | wrote_question = 1;␍␊ |
| 1483 | }␍␊ |
| 1484 | ␍␊ |
| 1485 | FCLOSE(fpin);␍␊ |
| 1486 | FCLOSE(fpout);␍␊ |
| 1487 | ␍␊ |
| 1488 | if (strict != 0)␍␊ |
| 1489 | return (1);␍␊ |
| 1490 | ␍␊ |
| 1491 | else␍␊ |
| 1492 | return (0);␍␊ |
| 1493 | }␍␊ |
| 1494 | ␍␊ |
| 1495 | if (!num_in)␍␊ |
| 1496 | break;␍␊ |
| 1497 | ␍␊ |
| 1498 | if (png_memcmp(inbuf, outbuf, num_in))␍␊ |
| 1499 | {␍␊ |
| 1500 | fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname);␍␊ |
| 1501 | ␍␊ |
| 1502 | if (wrote_question == 0)␍␊ |
| 1503 | {␍␊ |
| 1504 | fprintf(STDERR,␍␊ |
| 1505 | " Was %s written with the same maximum IDAT chunk size (%d bytes),",␍␊ |
| 1506 | inname, PNG_ZBUF_SIZE);␍␊ |
| 1507 | fprintf(STDERR,␍␊ |
| 1508 | "\n filtering heuristic (libpng default), compression");␍␊ |
| 1509 | fprintf(STDERR,␍␊ |
| 1510 | " level (zlib default),\n and zlib version (%s)?\n\n",␍␊ |
| 1511 | ZLIB_VERSION);␍␊ |
| 1512 | wrote_question = 1;␍␊ |
| 1513 | }␍␊ |
| 1514 | ␍␊ |
| 1515 | FCLOSE(fpin);␍␊ |
| 1516 | FCLOSE(fpout);␍␊ |
| 1517 | ␍␊ |
| 1518 | if (strict != 0)␍␊ |
| 1519 | return (1);␍␊ |
| 1520 | ␍␊ |
| 1521 | else␍␊ |
| 1522 | return (0);␍␊ |
| 1523 | }␍␊ |
| 1524 | }␍␊ |
| 1525 | ␍␊ |
| 1526 | FCLOSE(fpin);␍␊ |
| 1527 | FCLOSE(fpout);␍␊ |
| 1528 | ␍␊ |
| 1529 | return (0);␍␊ |
| 1530 | }␍␊ |
| 1531 | ␍␊ |
| 1532 | /* Input and output filenames */␍␊ |
| 1533 | #ifdef RISCOS␍␊ |
| 1534 | static PNG_CONST char *inname = "pngtest/png";␍␊ |
| 1535 | static PNG_CONST char *outname = "pngout/png";␍␊ |
| 1536 | #else␍␊ |
| 1537 | static PNG_CONST char *inname = "pngtest.png";␍␊ |
| 1538 | static PNG_CONST char *outname = "pngout.png";␍␊ |
| 1539 | #endif␍␊ |
| 1540 | ␍␊ |
| 1541 | int␍␊ |
| 1542 | main(int argc, char *argv[])␍␊ |
| 1543 | {␍␊ |
| 1544 | int multiple = 0;␍␊ |
| 1545 | int ierror = 0;␍␊ |
| 1546 | ␍␊ |
| 1547 | fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);␍␊ |
| 1548 | fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);␍␊ |
| 1549 | fprintf(STDERR, "%s", png_get_copyright(NULL));␍␊ |
| 1550 | /* Show the version of libpng used in building the library */␍␊ |
| 1551 | fprintf(STDERR, " library (%lu):%s",␍␊ |
| 1552 | (unsigned long)png_access_version_number(),␍␊ |
| 1553 | png_get_header_version(NULL));␍␊ |
| 1554 | ␍␊ |
| 1555 | /* Show the version of libpng used in building the application */␍␊ |
| 1556 | fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,␍␊ |
| 1557 | PNG_HEADER_VERSION_STRING);␍␊ |
| 1558 | ␍␊ |
| 1559 | /* Do some consistency checking on the memory allocation settings, I'm␍␊ |
| 1560 | * not sure this matters, but it is nice to know, the first of these␍␊ |
| 1561 | * tests should be impossible because of the way the macros are set␍␊ |
| 1562 | * in pngconf.h␍␊ |
| 1563 | */␍␊ |
| 1564 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)␍␊ |
| 1565 | fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n");␍␊ |
| 1566 | #endif␍␊ |
| 1567 | /* I think the following can happen. */␍␊ |
| 1568 | #if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K)␍␊ |
| 1569 | fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n");␍␊ |
| 1570 | #endif␍␊ |
| 1571 | ␍␊ |
| 1572 | if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING))␍␊ |
| 1573 | {␍␊ |
| 1574 | fprintf(STDERR,␍␊ |
| 1575 | "Warning: versions are different between png.h and png.c\n");␍␊ |
| 1576 | fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING);␍␊ |
| 1577 | fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver);␍␊ |
| 1578 | ++ierror;␍␊ |
| 1579 | }␍␊ |
| 1580 | ␍␊ |
| 1581 | if (argc > 1)␍␊ |
| 1582 | {␍␊ |
| 1583 | if (strcmp(argv[1], "-m") == 0)␍␊ |
| 1584 | {␍␊ |
| 1585 | multiple = 1;␍␊ |
| 1586 | status_dots_requested = 0;␍␊ |
| 1587 | }␍␊ |
| 1588 | ␍␊ |
| 1589 | else if (strcmp(argv[1], "-mv") == 0 ||␍␊ |
| 1590 | strcmp(argv[1], "-vm") == 0 )␍␊ |
| 1591 | {␍␊ |
| 1592 | multiple = 1;␍␊ |
| 1593 | verbose = 1;␍␊ |
| 1594 | status_dots_requested = 1;␍␊ |
| 1595 | }␍␊ |
| 1596 | ␍␊ |
| 1597 | else if (strcmp(argv[1], "-v") == 0)␍␊ |
| 1598 | {␍␊ |
| 1599 | verbose = 1;␍␊ |
| 1600 | status_dots_requested = 1;␍␊ |
| 1601 | inname = argv[2];␍␊ |
| 1602 | }␍␊ |
| 1603 | ␍␊ |
| 1604 | else if (strcmp(argv[1], "--strict") == 0)␍␊ |
| 1605 | {␍␊ |
| 1606 | status_dots_requested = 0;␍␊ |
| 1607 | verbose = 1;␍␊ |
| 1608 | inname = argv[2];␍␊ |
| 1609 | strict++;␍␊ |
| 1610 | }␍␊ |
| 1611 | ␍␊ |
| 1612 | else␍␊ |
| 1613 | {␍␊ |
| 1614 | inname = argv[1];␍␊ |
| 1615 | status_dots_requested = 0;␍␊ |
| 1616 | }␍␊ |
| 1617 | }␍␊ |
| 1618 | ␍␊ |
| 1619 | if (!multiple && argc == 3 + verbose)␍␊ |
| 1620 | outname = argv[2 + verbose];␍␊ |
| 1621 | ␍␊ |
| 1622 | if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2))␍␊ |
| 1623 | {␍␊ |
| 1624 | fprintf(STDERR,␍␊ |
| 1625 | "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n",␍␊ |
| 1626 | argv[0], argv[0]);␍␊ |
| 1627 | fprintf(STDERR,␍␊ |
| 1628 | " reads/writes one PNG file (without -m) or multiple files (-m)\n");␍␊ |
| 1629 | fprintf(STDERR,␍␊ |
| 1630 | " with -m %s is used as a temporary file\n", outname);␍␊ |
| 1631 | exit(1);␍␊ |
| 1632 | }␍␊ |
| 1633 | ␍␊ |
| 1634 | if (multiple)␍␊ |
| 1635 | {␍␊ |
| 1636 | int i;␍␊ |
| 1637 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 1638 | int allocation_now = current_allocation;␍␊ |
| 1639 | #endif␍␊ |
| 1640 | for (i=2; i<argc; ++i)␍␊ |
| 1641 | {␍␊ |
| 1642 | int kerror;␍␊ |
| 1643 | fprintf(STDERR, "\n Testing %s:", argv[i]);␍␊ |
| 1644 | kerror = test_one_file(argv[i], outname);␍␊ |
| 1645 | if (kerror == 0)␍␊ |
| 1646 | {␍␊ |
| 1647 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED␍␊ |
| 1648 | int k;␍␊ |
| 1649 | #endif␍␊ |
| 1650 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED␍␊ |
| 1651 | fprintf(STDERR, "\n PASS (%lu zero samples)\n",␍␊ |
| 1652 | (unsigned long)zero_samples);␍␊ |
| 1653 | #else␍␊ |
| 1654 | fprintf(STDERR, " PASS\n");␍␊ |
| 1655 | #endif␍␊ |
| 1656 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED␍␊ |
| 1657 | for (k = 0; k<256; k++)␍␊ |
| 1658 | if (filters_used[k])␍␊ |
| 1659 | fprintf(STDERR, " Filter %d was used %lu times\n",␍␊ |
| 1660 | k, (unsigned long)filters_used[k]);␍␊ |
| 1661 | #endif␍␊ |
| 1662 | #ifdef PNG_TIME_RFC1123_SUPPORTED␍␊ |
| 1663 | if (tIME_chunk_present != 0)␍␊ |
| 1664 | fprintf(STDERR, " tIME = %s\n", tIME_string);␍␊ |
| 1665 | ␍␊ |
| 1666 | tIME_chunk_present = 0;␍␊ |
| 1667 | #endif /* PNG_TIME_RFC1123_SUPPORTED */␍␊ |
| 1668 | }␍␊ |
| 1669 | ␍␊ |
| 1670 | else␍␊ |
| 1671 | {␍␊ |
| 1672 | fprintf(STDERR, " FAIL\n");␍␊ |
| 1673 | ierror += kerror;␍␊ |
| 1674 | }␍␊ |
| 1675 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 1676 | if (allocation_now != current_allocation)␍␊ |
| 1677 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",␍␊ |
| 1678 | current_allocation - allocation_now);␍␊ |
| 1679 | ␍␊ |
| 1680 | if (current_allocation != 0)␍␊ |
| 1681 | {␍␊ |
| 1682 | memory_infop pinfo = pinformation;␍␊ |
| 1683 | ␍␊ |
| 1684 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",␍␊ |
| 1685 | current_allocation);␍␊ |
| 1686 | ␍␊ |
| 1687 | while (pinfo != NULL)␍␊ |
| 1688 | {␍␊ |
| 1689 | fprintf(STDERR, " %lu bytes at %x\n",␍␊ |
| 1690 | (unsigned long)pinfo->size,␍␊ |
| 1691 | (unsigned int)pinfo->pointer);␍␊ |
| 1692 | pinfo = pinfo->next;␍␊ |
| 1693 | }␍␊ |
| 1694 | }␍␊ |
| 1695 | #endif␍␊ |
| 1696 | }␍␊ |
| 1697 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 1698 | fprintf(STDERR, " Current memory allocation: %10d bytes\n",␍␊ |
| 1699 | current_allocation);␍␊ |
| 1700 | fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",␍␊ |
| 1701 | maximum_allocation);␍␊ |
| 1702 | fprintf(STDERR, " Total memory allocation: %10d bytes\n",␍␊ |
| 1703 | total_allocation);␍␊ |
| 1704 | fprintf(STDERR, " Number of allocations: %10d\n",␍␊ |
| 1705 | num_allocations);␍␊ |
| 1706 | #endif␍␊ |
| 1707 | }␍␊ |
| 1708 | ␍␊ |
| 1709 | else␍␊ |
| 1710 | {␍␊ |
| 1711 | int i;␍␊ |
| 1712 | for (i = 0; i<3; ++i)␍␊ |
| 1713 | {␍␊ |
| 1714 | int kerror;␍␊ |
| 1715 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 1716 | int allocation_now = current_allocation;␍␊ |
| 1717 | #endif␍␊ |
| 1718 | if (i == 1)␍␊ |
| 1719 | status_dots_requested = 1;␍␊ |
| 1720 | ␍␊ |
| 1721 | else if (verbose == 0)␍␊ |
| 1722 | status_dots_requested = 0;␍␊ |
| 1723 | ␍␊ |
| 1724 | if (i == 0 || verbose == 1 || ierror != 0)␍␊ |
| 1725 | fprintf(STDERR, "\n Testing %s:", inname);␍␊ |
| 1726 | ␍␊ |
| 1727 | kerror = test_one_file(inname, outname);␍␊ |
| 1728 | ␍␊ |
| 1729 | if (kerror == 0)␍␊ |
| 1730 | {␍␊ |
| 1731 | if (verbose == 1 || i == 2)␍␊ |
| 1732 | {␍␊ |
| 1733 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED␍␊ |
| 1734 | int k;␍␊ |
| 1735 | #endif␍␊ |
| 1736 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED␍␊ |
| 1737 | fprintf(STDERR, "\n PASS (%lu zero samples)\n",␍␊ |
| 1738 | (unsigned long)zero_samples);␍␊ |
| 1739 | #else␍␊ |
| 1740 | fprintf(STDERR, " PASS\n");␍␊ |
| 1741 | #endif␍␊ |
| 1742 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED␍␊ |
| 1743 | for (k = 0; k<256; k++)␍␊ |
| 1744 | if (filters_used[k])␍␊ |
| 1745 | fprintf(STDERR, " Filter %d was used %lu times\n",␍␊ |
| 1746 | k, (unsigned long)filters_used[k]);␍␊ |
| 1747 | #endif␍␊ |
| 1748 | #ifdef PNG_TIME_RFC1123_SUPPORTED␍␊ |
| 1749 | if (tIME_chunk_present != 0)␍␊ |
| 1750 | fprintf(STDERR, " tIME = %s\n", tIME_string);␍␊ |
| 1751 | #endif /* PNG_TIME_RFC1123_SUPPORTED */␍␊ |
| 1752 | }␍␊ |
| 1753 | }␍␊ |
| 1754 | ␍␊ |
| 1755 | else␍␊ |
| 1756 | {␍␊ |
| 1757 | if (verbose == 0 && i != 2)␍␊ |
| 1758 | fprintf(STDERR, "\n Testing %s:", inname);␍␊ |
| 1759 | ␍␊ |
| 1760 | fprintf(STDERR, " FAIL\n");␍␊ |
| 1761 | ierror += kerror;␍␊ |
| 1762 | }␍␊ |
| 1763 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 1764 | if (allocation_now != current_allocation)␍␊ |
| 1765 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",␍␊ |
| 1766 | current_allocation - allocation_now);␍␊ |
| 1767 | ␍␊ |
| 1768 | if (current_allocation != 0)␍␊ |
| 1769 | {␍␊ |
| 1770 | memory_infop pinfo = pinformation;␍␊ |
| 1771 | ␍␊ |
| 1772 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",␍␊ |
| 1773 | current_allocation);␍␊ |
| 1774 | ␍␊ |
| 1775 | while (pinfo != NULL)␍␊ |
| 1776 | {␍␊ |
| 1777 | fprintf(STDERR, " %lu bytes at %x\n",␍␊ |
| 1778 | (unsigned long)pinfo->size, (unsigned int)pinfo->pointer);␍␊ |
| 1779 | pinfo = pinfo->next;␍␊ |
| 1780 | }␍␊ |
| 1781 | }␍␊ |
| 1782 | #endif␍␊ |
| 1783 | }␍␊ |
| 1784 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG␍␊ |
| 1785 | fprintf(STDERR, " Current memory allocation: %10d bytes\n",␍␊ |
| 1786 | current_allocation);␍␊ |
| 1787 | fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",␍␊ |
| 1788 | maximum_allocation);␍␊ |
| 1789 | fprintf(STDERR, " Total memory allocation: %10d bytes\n",␍␊ |
| 1790 | total_allocation);␍␊ |
| 1791 | fprintf(STDERR, " Number of allocations: %10d\n",␍␊ |
| 1792 | num_allocations);␍␊ |
| 1793 | #endif␍␊ |
| 1794 | }␍␊ |
| 1795 | ␍␊ |
| 1796 | #ifdef PNGTEST_TIMING␍␊ |
| 1797 | t_stop = (float)clock();␍␊ |
| 1798 | t_misc += (t_stop - t_start);␍␊ |
| 1799 | t_start = t_stop;␍␊ |
| 1800 | fprintf(STDERR, " CPU time used = %.3f seconds",␍␊ |
| 1801 | (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);␍␊ |
| 1802 | fprintf(STDERR, " (decoding %.3f,\n",␍␊ |
| 1803 | t_decode/(float)CLOCKS_PER_SEC);␍␊ |
| 1804 | fprintf(STDERR, " encoding %.3f ,",␍␊ |
| 1805 | t_encode/(float)CLOCKS_PER_SEC);␍␊ |
| 1806 | fprintf(STDERR, " other %.3f seconds)\n\n",␍␊ |
| 1807 | t_misc/(float)CLOCKS_PER_SEC);␍␊ |
| 1808 | #endif␍␊ |
| 1809 | ␍␊ |
| 1810 | if (ierror == 0)␍␊ |
| 1811 | fprintf(STDERR, " libpng passes test\n");␍␊ |
| 1812 | ␍␊ |
| 1813 | else␍␊ |
| 1814 | fprintf(STDERR, " libpng FAILS test\n");␍␊ |
| 1815 | ␍␊ |
| 1816 | return (int)(ierror != 0);␍␊ |
| 1817 | }␍␊ |
| 1818 | ␍␊ |
| 1819 | /* Generate a compiler error if there is an old png.h in the search path. */␍␊ |
| 1820 | typedef png_libpng_version_1_5_13 Your_png_h_is_not_version_1_5_13;␍␊ |
| 1821 | |
