| 1 | |
| 2 | /* pngtest.c - a simple test program to test libpng |
| 3 | * |
| 4 | * libpng 1.0.3 -January 14, 1999 |
| 5 | * For conditions of distribution and use, see copyright notice in png.h |
| 6 | * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. |
| 7 | * Copyright (c) 1996, 1997 Andreas Dilger |
| 8 | * Copyright (c) 1998, 1999 Glenn Randers-Pehrson |
| 9 | * |
| 10 | * This program reads in a PNG image, writes it out again, and then |
| 11 | * compares the two files. If the files are identical, this shows that |
| 12 | * the basic chunk handling, filtering, and (de)compression code is working |
| 13 | * properly. It does not currently test all of the transforms, although |
| 14 | * it probably should. |
| 15 | * |
| 16 | * The program will report "FAIL" in certain legitimate cases: |
| 17 | * 1) when the compression level or filter selection method is changed. |
| 18 | * 2) when the chunk size is not 8K. |
| 19 | * 3) unknown ancillary chunks exist in the input file. |
| 20 | * 4) others not listed here... |
| 21 | * In these cases, it is best to check with another tool such as "pngcheck" |
| 22 | * to see what the differences between the two images are. |
| 23 | * |
| 24 | * If a filename is given on the command-line, then this file is used |
| 25 | * for the input, rather than the default "pngtest.png". This allows |
| 26 | * testing a wide variety of files easily. You can also test a number |
| 27 | * of files at once by typing "pngtest -m file1.png file2.png ..." |
| 28 | */ |
| 29 | |
| 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
| 32 | |
| 33 | /* Makes pngtest verbose so we can find problems (needs to be before png.h) */ |
| 34 | #ifndef PNG_DEBUG |
| 35 | #define PNG_DEBUG 0 |
| 36 | #endif |
| 37 | |
| 38 | #include "png.h" |
| 39 | |
| 40 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
| 41 | static int tIME_chunk_present=0; |
| 42 | static char tIME_string[30] = "no tIME chunk present in file"; |
| 43 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 44 | |
| 45 | int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname)); |
| 46 | |
| 47 | #ifdef __TURBOC__ |
| 48 | #include <mem.h> |
| 49 | #endif |
| 50 | |
| 51 | /* defined so I can write to a file on gui/windowing platforms */ |
| 52 | /* #define STDERR stderr */ |
| 53 | #define STDERR stdout /* for DOS */ |
| 54 | |
| 55 | /* example of using row callbacks to make a simple progress meter */ |
| 56 | static int status_pass=1; |
| 57 | static int status_dots_requested=0; |
| 58 | static int status_dots=1; |
| 59 | |
| 60 | void |
| 61 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
| 62 | { |
| 63 | if(png_ptr == NULL || row_number > 0x3fffffffL) return; |
| 64 | if(status_pass != pass) |
| 65 | { |
| 66 | fprintf(stdout,"\n Pass %d: ",pass); |
| 67 | status_pass = pass; |
| 68 | status_dots = 30; |
| 69 | } |
| 70 | status_dots--; |
| 71 | if(status_dots == 0) |
| 72 | { |
| 73 | fprintf(stdout, "\n "); |
| 74 | status_dots=30; |
| 75 | } |
| 76 | fprintf(stdout, "r"); |
| 77 | } |
| 78 | |
| 79 | void |
| 80 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
| 81 | { |
| 82 | if(png_ptr == NULL || row_number > 0x3fffffffL || pass > 7) return; |
| 83 | fprintf(stdout, "w"); |
| 84 | } |
| 85 | |
| 86 | |
| 87 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 88 | /* example of using user transform callback (we don't transform anything, |
| 89 | but merely count the zero samples) */ |
| 90 | |
| 91 | static png_uint_32 zero_samples; |
| 92 | |
| 93 | void |
| 94 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
| 95 | { |
| 96 | png_bytep dp = data; |
| 97 | if(png_ptr == NULL)return; |
| 98 | |
| 99 | /* contents of row_info: |
| 100 | * png_uint_32 width width of row |
| 101 | * png_uint_32 rowbytes number of bytes in row |
| 102 | * png_byte color_type color type of pixels |
| 103 | * png_byte bit_depth bit depth of samples |
| 104 | * png_byte channels number of channels (1-4) |
| 105 | * png_byte pixel_depth bits per pixel (depth*channels) |
| 106 | */ |
| 107 | |
| 108 | /* counts the number of zero samples (or zero pixels if color_type is 3 */ |
| 109 | |
| 110 | if(row_info->color_type == 0 || row_info->color_type == 3) |
| 111 | { |
| 112 | int pos=0; |
| 113 | png_uint_32 n, nstop; |
| 114 | for (n=0, nstop=row_info->width; n<nstop; n++) |
| 115 | { |
| 116 | if(row_info->bit_depth == 1) |
| 117 | { |
| 118 | if(((*dp << pos++ )& 0x80) == 0) zero_samples++; |
| 119 | if(pos == 8) |
| 120 | { |
| 121 | pos = 0; |
| 122 | dp++; |
| 123 | } |
| 124 | } |
| 125 | if(row_info->bit_depth == 2) |
| 126 | { |
| 127 | if(((*dp << (pos+=2))& 0xc0) == 0) zero_samples++; |
| 128 | if(pos == 8) |
| 129 | { |
| 130 | pos = 0; |
| 131 | dp++; |
| 132 | } |
| 133 | } |
| 134 | if(row_info->bit_depth == 4) |
| 135 | { |
| 136 | if(((*dp << (pos+=4))& 0xf0) == 0) zero_samples++; |
| 137 | if(pos == 8) |
| 138 | { |
| 139 | pos = 0; |
| 140 | dp++; |
| 141 | } |
| 142 | } |
| 143 | if(row_info->bit_depth == 8) |
| 144 | if(*dp++ == 0) zero_samples++; |
| 145 | if(row_info->bit_depth == 16) |
| 146 | { |
| 147 | if((*dp | *(dp+1)) == 0) zero_samples++; |
| 148 | dp+=2; |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | else /* other color types */ |
| 153 | { |
| 154 | png_uint_32 n, nstop; |
| 155 | int channel; |
| 156 | int color_channels = row_info->channels; |
| 157 | if(row_info->color_type > 3)color_channels--; |
| 158 | |
| 159 | for (n=0, nstop=row_info->width; n<nstop; n++) |
| 160 | { |
| 161 | for (channel = 0; channel < color_channels; channel++) |
| 162 | { |
| 163 | if(row_info->bit_depth == 8) |
| 164 | if(*dp++ == 0) zero_samples++; |
| 165 | if(row_info->bit_depth == 16) |
| 166 | { |
| 167 | if((*dp | *(dp+1)) == 0) zero_samples++; |
| 168 | dp+=2; |
| 169 | } |
| 170 | } |
| 171 | if(row_info->color_type > 3) |
| 172 | { |
| 173 | dp++; |
| 174 | if(row_info->bit_depth == 16)dp++; |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | #endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ |
| 180 | |
| 181 | static int verbose = 0; |
| 182 | static int wrote_question = 0; |
| 183 | |
| 184 | #if defined(PNG_NO_STDIO) |
| 185 | /* START of code to validate stdio-free compilation */ |
| 186 | /* These copies of the default read/write functions come from pngrio.c and */ |
| 187 | /* pngwio.c. They allow "don't include stdio" testing of the library. */ |
| 188 | /* This is the function that does the actual reading of data. If you are |
| 189 | not reading from a standard C stream, you should create a replacement |
| 190 | read_data function and use it at run time with png_set_read_fn(), rather |
| 191 | than changing the library. */ |
| 192 | #ifndef USE_FAR_KEYWORD |
| 193 | static void |
| 194 | png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 195 | { |
| 196 | png_size_t check; |
| 197 | |
| 198 | /* fread() returns 0 on error, so it is OK to store this in a png_size_t |
| 199 | * instead of an int, which is what fread() actually returns. |
| 200 | */ |
| 201 | check = (png_size_t)fread(data, (png_size_t)1, length, |
| 202 | (FILE *)png_ptr->io_ptr); |
| 203 | |
| 204 | if (check != length) |
| 205 | { |
| 206 | png_error(png_ptr, "Read Error"); |
| 207 | } |
| 208 | } |
| 209 | #else |
| 210 | /* this is the model-independent version. Since the standard I/O library |
| 211 | can't handle far buffers in the medium and small models, we have to copy |
| 212 | the data. |
| 213 | */ |
| 214 | |
| 215 | #define NEAR_BUF_SIZE 1024 |
| 216 | #define MIN(a,b) (a <= b ? a : b) |
| 217 | |
| 218 | static void |
| 219 | png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 220 | { |
| 221 | int check; |
| 222 | png_byte *n_data; |
| 223 | FILE *io_ptr; |
| 224 | |
| 225 | /* Check if data really is near. If so, use usual code. */ |
| 226 | n_data = (png_byte *)CVT_PTR_NOCHECK(data); |
| 227 | io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr); |
| 228 | if ((png_bytep)n_data == data) |
| 229 | { |
| 230 | check = fread(n_data, 1, length, io_ptr); |
| 231 | } |
| 232 | else |
| 233 | { |
| 234 | png_byte buf[NEAR_BUF_SIZE]; |
| 235 | png_size_t read, remaining, err; |
| 236 | check = 0; |
| 237 | remaining = length; |
| 238 | do |
| 239 | { |
| 240 | read = MIN(NEAR_BUF_SIZE, remaining); |
| 241 | err = fread(buf, (png_size_t)1, read, io_ptr); |
| 242 | png_memcpy(data, buf, read); /* copy far buffer to near buffer */ |
| 243 | if(err != read) |
| 244 | break; |
| 245 | else |
| 246 | check += err; |
| 247 | data += read; |
| 248 | remaining -= read; |
| 249 | } |
| 250 | while (remaining != 0); |
| 251 | } |
| 252 | if (check != length) |
| 253 | { |
| 254 | png_error(png_ptr, "read Error"); |
| 255 | } |
| 256 | } |
| 257 | #endif /* USE_FAR_KEYWORD */ |
| 258 | |
| 259 | #if defined(PNG_WRITE_FLUSH_SUPPORTED) |
| 260 | static void |
| 261 | png_default_flush(png_structp png_ptr) |
| 262 | { |
| 263 | FILE *io_ptr; |
| 264 | io_ptr = (FILE *)CVT_PTR((png_ptr->io_ptr)); |
| 265 | if (io_ptr != NULL) |
| 266 | fflush(io_ptr); |
| 267 | } |
| 268 | #endif |
| 269 | |
| 270 | /* This is the function that does the actual writing of data. If you are |
| 271 | not writing to a standard C stream, you should create a replacement |
| 272 | write_data function and use it at run time with png_set_write_fn(), rather |
| 273 | than changing the library. */ |
| 274 | #ifndef USE_FAR_KEYWORD |
| 275 | static void |
| 276 | png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 277 | { |
| 278 | png_uint_32 check; |
| 279 | |
| 280 | check = fwrite(data, 1, length, (FILE *)(png_ptr->io_ptr)); |
| 281 | if (check != length) |
| 282 | { |
| 283 | png_error(png_ptr, "Write Error"); |
| 284 | } |
| 285 | } |
| 286 | #else |
| 287 | /* this is the model-independent version. Since the standard I/O library |
| 288 | can't handle far buffers in the medium and small models, we have to copy |
| 289 | the data. |
| 290 | */ |
| 291 | |
| 292 | #define NEAR_BUF_SIZE 1024 |
| 293 | #define MIN(a,b) (a <= b ? a : b) |
| 294 | |
| 295 | static void |
| 296 | png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
| 297 | { |
| 298 | png_uint_32 check; |
| 299 | png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ |
| 300 | FILE *io_ptr; |
| 301 | |
| 302 | /* Check if data really is near. If so, use usual code. */ |
| 303 | near_data = (png_byte *)CVT_PTR_NOCHECK(data); |
| 304 | io_ptr = (FILE *)CVT_PTR(png_ptr->io_ptr); |
| 305 | if ((png_bytep)near_data == data) |
| 306 | { |
| 307 | check = fwrite(near_data, 1, length, io_ptr); |
| 308 | } |
| 309 | else |
| 310 | { |
| 311 | png_byte buf[NEAR_BUF_SIZE]; |
| 312 | png_size_t written, remaining, err; |
| 313 | check = 0; |
| 314 | remaining = length; |
| 315 | do |
| 316 | { |
| 317 | written = MIN(NEAR_BUF_SIZE, remaining); |
| 318 | png_memcpy(buf, data, written); /* copy far buffer to near buffer */ |
| 319 | err = fwrite(buf, 1, written, io_ptr); |
| 320 | if (err != written) |
| 321 | break; |
| 322 | else |
| 323 | check += err; |
| 324 | data += written; |
| 325 | remaining -= written; |
| 326 | } |
| 327 | while (remaining != 0); |
| 328 | } |
| 329 | if (check != length) |
| 330 | { |
| 331 | png_error(png_ptr, "Write Error"); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | #endif /* USE_FAR_KEYWORD */ |
| 336 | |
| 337 | /* This function is called when there is a warning, but the library thinks |
| 338 | * it can continue anyway. Replacement functions don't have to do anything |
| 339 | * here if you don't want to. In the default configuration, png_ptr is |
| 340 | * not used, but it is passed in case it may be useful. |
| 341 | */ |
| 342 | static void |
| 343 | png_default_warning(png_structp png_ptr, png_const_charp message) |
| 344 | { |
| 345 | PNG_CONST char *name = "UNKNOWN (ERROR!)"; |
| 346 | if (png_ptr != NULL && png_ptr->error_ptr != NULL) |
| 347 | name = png_ptr->error_ptr; |
| 348 | fprintf(STDERR, "%s: libpng warning: %s\n", name, message); |
| 349 | } |
| 350 | |
| 351 | /* This is the default error handling function. Note that replacements for |
| 352 | * this function MUST NOT RETURN, or the program will likely crash. This |
| 353 | * function is used by default, or if the program supplies NULL for the |
| 354 | * error function pointer in png_set_error_fn(). |
| 355 | */ |
| 356 | static void |
| 357 | png_default_error(png_structp png_ptr, png_const_charp message) |
| 358 | { |
| 359 | png_default_warning(png_ptr, message); |
| 360 | /* We can return because png_error calls the default handler, which is |
| 361 | * actually OK in this case. */ |
| 362 | } |
| 363 | #endif /* PNG_NO_STDIO */ |
| 364 | /* END of code to validate stdio-free compilation */ |
| 365 | |
| 366 | /* START of code to validate memory allocation and deallocation */ |
| 367 | #ifdef PNG_USER_MEM_SUPPORTED |
| 368 | |
| 369 | /* Allocate memory. For reasonable files, size should never exceed |
| 370 | 64K. However, zlib may allocate more then 64K if you don't tell |
| 371 | it not to. See zconf.h and png.h for more information. zlib does |
| 372 | need to allocate exactly 64K, so whatever you call here must |
| 373 | have the ability to do that. |
| 374 | |
| 375 | This piece of code can be compiled to validate max 64K allocations |
| 376 | by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. */ |
| 377 | typedef struct memory_information { |
| 378 | png_uint_32 size; |
| 379 | png_voidp pointer; |
| 380 | struct memory_information FAR *next; |
| 381 | } memory_information; |
| 382 | typedef memory_information FAR *memory_infop; |
| 383 | |
| 384 | static memory_infop pinformation = NULL; |
| 385 | static int current_allocation = 0; |
| 386 | static int maximum_allocation = 0; |
| 387 | |
| 388 | extern PNG_EXPORT(png_voidp,png_debug_malloc) PNGARG((png_structp png_ptr, |
| 389 | png_uint_32 size)); |
| 390 | extern PNG_EXPORT(void,png_debug_free) PNGARG((png_structp png_ptr, |
| 391 | png_voidp ptr)); |
| 392 | |
| 393 | png_voidp |
| 394 | png_debug_malloc(png_structp png_ptr, png_uint_32 size) { |
| 395 | |
| 396 | /* png_malloc has already tested for NULL; png_create_struct calls |
| 397 | png_debug_malloc directly, with png_ptr == NULL which is OK */ |
| 398 | |
| 399 | if (size == 0) |
| 400 | return (png_voidp)(NULL); |
| 401 | |
| 402 | /* This calls the library allocator twice, once to get the requested |
| 403 | buffer and once to get a new free list entry. */ |
| 404 | { |
| 405 | memory_infop pinfo = png_malloc_default(png_ptr, sizeof *pinfo); |
| 406 | pinfo->size = size; |
| 407 | current_allocation += size; |
| 408 | if (current_allocation > maximum_allocation) |
| 409 | maximum_allocation = current_allocation; |
| 410 | pinfo->pointer = png_malloc_default(png_ptr, size); |
| 411 | pinfo->next = pinformation; |
| 412 | pinformation = pinfo; |
| 413 | /* Make sure the caller isn't assuming zeroed memory. */ |
| 414 | png_memset(pinfo->pointer, 0xdd, pinfo->size); |
| 415 | return (png_voidp)(pinfo->pointer); |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | /* Free a pointer. It is removed from the list at the same time. */ |
| 420 | void |
| 421 | png_debug_free(png_structp png_ptr, png_voidp ptr) |
| 422 | { |
| 423 | if (png_ptr == NULL) |
| 424 | fprintf(STDERR, "NULL pointer to png_debug_free.\n"); |
| 425 | if (ptr == 0) { |
| 426 | #if 0 /* This happens all the time. */ |
| 427 | fprintf(STDERR, "WARNING: freeing NULL pointer\n"); |
| 428 | #endif |
| 429 | return; |
| 430 | } |
| 431 | |
| 432 | /* Unlink the element from the list. */ |
| 433 | { |
| 434 | memory_infop FAR *ppinfo = &pinformation; |
| 435 | for (;;) { |
| 436 | memory_infop pinfo = *ppinfo; |
| 437 | if (pinfo->pointer == ptr) { |
| 438 | *ppinfo = pinfo->next; |
| 439 | current_allocation -= pinfo->size; |
| 440 | if (current_allocation < 0) |
| 441 | fprintf(STDERR, "Duplicate free of memory\n"); |
| 442 | /* We must free the list element too, but first kill |
| 443 | the memory that is to be freed. */ |
| 444 | memset(ptr, 0x55, pinfo->size); |
| 445 | png_free_default(png_ptr, pinfo); |
| 446 | break; |
| 447 | } |
| 448 | if (pinfo->next == NULL) { |
| 449 | fprintf(STDERR, "Pointer %x not found\n", ptr); |
| 450 | break; |
| 451 | } |
| 452 | ppinfo = &pinfo->next; |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | /* Finally free the data. */ |
| 457 | png_free_default(png_ptr, ptr); |
| 458 | } |
| 459 | #endif /* PNG_USER_MEM_SUPPORTED */ |
| 460 | /* END of code to test memory allocation/deallocation */ |
| 461 | |
| 462 | /* Test one file */ |
| 463 | int |
| 464 | test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) |
| 465 | { |
| 466 | static FILE *fpin, *fpout; /* "static" prevents setjmp corruption */ |
| 467 | png_structp read_ptr, write_ptr; |
| 468 | png_infop read_info_ptr, write_info_ptr, end_info_ptr; |
| 469 | png_bytep row_buf; |
| 470 | png_uint_32 y; |
| 471 | png_uint_32 width, height; |
| 472 | int num_pass, pass; |
| 473 | int bit_depth, color_type; |
| 474 | #ifdef USE_FAR_KEYWORD |
| 475 | jmp_buf jmpbuf; |
| 476 | #endif |
| 477 | |
| 478 | char inbuf[256], outbuf[256]; |
| 479 | |
| 480 | row_buf = (png_bytep)NULL; |
| 481 | |
| 482 | if ((fpin = fopen(inname, "rb")) == NULL) |
| 483 | { |
| 484 | fprintf(STDERR, "Could not find input file %s\n", inname); |
| 485 | return (1); |
| 486 | } |
| 487 | |
| 488 | if ((fpout = fopen(outname, "wb")) == NULL) |
| 489 | { |
| 490 | fprintf(STDERR, "Could not open output file %s\n", outname); |
| 491 | fclose(fpin); |
| 492 | return (1); |
| 493 | } |
| 494 | |
| 495 | png_debug(0, "Allocating read and write structures\n"); |
| 496 | #ifdef PNG_USER_MEM_SUPPORTED |
| 497 | read_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, |
| 498 | (png_error_ptr)NULL, (png_error_ptr)NULL, (png_voidp)NULL, |
| 499 | (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free); |
| 500 | #else |
| 501 | read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, |
| 502 | (png_error_ptr)NULL, (png_error_ptr)NULL); |
| 503 | #endif |
| 504 | #if defined(PNG_NO_STDIO) |
| 505 | png_set_error_fn(read_ptr, (png_voidp)inname, png_default_error, |
| 506 | png_default_warning); |
| 507 | #endif |
| 508 | #ifdef PNG_USER_MEM_SUPPORTED |
| 509 | write_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, |
| 510 | (png_error_ptr)NULL, (png_error_ptr)NULL, (png_voidp)NULL, |
| 511 | (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free); |
| 512 | #else |
| 513 | write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, |
| 514 | (png_error_ptr)NULL, (png_error_ptr)NULL); |
| 515 | #endif |
| 516 | #if defined(PNG_NO_STDIO) |
| 517 | png_set_error_fn(write_ptr, (png_voidp)inname, png_default_error, |
| 518 | png_default_warning); |
| 519 | #endif |
| 520 | png_debug(0, "Allocating read_info, write_info and end_info structures\n"); |
| 521 | read_info_ptr = png_create_info_struct(read_ptr); |
| 522 | write_info_ptr = png_create_info_struct(write_ptr); |
| 523 | end_info_ptr = png_create_info_struct(read_ptr); |
| 524 | #ifdef PNG_USER_MEM_SUPPORTED |
| 525 | #endif |
| 526 | |
| 527 | png_debug(0, "Setting jmpbuf for read struct\n"); |
| 528 | #ifdef USE_FAR_KEYWORD |
| 529 | if (setjmp(jmpbuf)) |
| 530 | #else |
| 531 | if (setjmp(read_ptr->jmpbuf)) |
| 532 | #endif |
| 533 | { |
| 534 | fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname); |
| 535 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
| 536 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 537 | fclose(fpin); |
| 538 | fclose(fpout); |
| 539 | return (1); |
| 540 | } |
| 541 | #ifdef USE_FAR_KEYWORD |
| 542 | png_memcpy(read_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf)); |
| 543 | #endif |
| 544 | |
| 545 | png_debug(0, "Setting jmpbuf for write struct\n"); |
| 546 | #ifdef USE_FAR_KEYWORD |
| 547 | if (setjmp(jmpbuf)) |
| 548 | #else |
| 549 | if (setjmp(write_ptr->jmpbuf)) |
| 550 | #endif |
| 551 | { |
| 552 | fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname); |
| 553 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
| 554 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 555 | fclose(fpin); |
| 556 | fclose(fpout); |
| 557 | return (1); |
| 558 | } |
| 559 | #ifdef USE_FAR_KEYWORD |
| 560 | png_memcpy(write_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf)); |
| 561 | #endif |
| 562 | |
| 563 | png_debug(0, "Initializing input and output streams\n"); |
| 564 | #if !defined(PNG_NO_STDIO) |
| 565 | png_init_io(read_ptr, fpin); |
| 566 | png_init_io(write_ptr, fpout); |
| 567 | #else |
| 568 | png_set_read_fn(read_ptr, (png_voidp)fpin, png_default_read_data); |
| 569 | png_set_write_fn(write_ptr, (png_voidp)fpout, png_default_write_data, |
| 570 | #if defined(PNG_WRITE_FLUSH_SUPPORTED) |
| 571 | png_default_flush); |
| 572 | #else |
| 573 | NULL); |
| 574 | #endif |
| 575 | #endif |
| 576 | if(status_dots_requested == 1) |
| 577 | { |
| 578 | png_set_write_status_fn(write_ptr, write_row_callback); |
| 579 | png_set_read_status_fn(read_ptr, read_row_callback); |
| 580 | } |
| 581 | else |
| 582 | { |
| 583 | png_set_write_status_fn(write_ptr, NULL); |
| 584 | png_set_read_status_fn(read_ptr, NULL); |
| 585 | } |
| 586 | |
| 587 | # if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 588 | zero_samples=0; |
| 589 | png_set_write_user_transform_fn(write_ptr, count_zero_samples); |
| 590 | # endif |
| 591 | |
| 592 | png_debug(0, "Reading info struct\n"); |
| 593 | png_read_info(read_ptr, read_info_ptr); |
| 594 | |
| 595 | png_debug(0, "Transferring info struct\n"); |
| 596 | { |
| 597 | int interlace_type, compression_type, filter_type; |
| 598 | |
| 599 | if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, |
| 600 | &color_type, &interlace_type, &compression_type, &filter_type)) |
| 601 | { |
| 602 | png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, |
| 603 | #if defined(PNG_WRITE_INTERLACING_SUPPORTED) |
| 604 | color_type, interlace_type, compression_type, filter_type); |
| 605 | #else |
| 606 | color_type, PNG_INTERLACE_NONE, compression_type, filter_type); |
| 607 | #endif |
| 608 | } |
| 609 | } |
| 610 | #if defined(PNG_READ_bKGD_SUPPORTED) && defined(PNG_WRITE_bKGD_SUPPORTED) |
| 611 | { |
| 612 | png_color_16p background; |
| 613 | |
| 614 | if (png_get_bKGD(read_ptr, read_info_ptr, &background)) |
| 615 | { |
| 616 | png_set_bKGD(write_ptr, write_info_ptr, background); |
| 617 | } |
| 618 | } |
| 619 | #endif |
| 620 | #if defined(PNG_READ_cHRM_SUPPORTED) && defined(PNG_WRITE_cHRM_SUPPORTED) |
| 621 | { |
| 622 | double white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; |
| 623 | |
| 624 | if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, |
| 625 | &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
| 626 | { |
| 627 | png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, |
| 628 | red_y, green_x, green_y, blue_x, blue_y); |
| 629 | } |
| 630 | } |
| 631 | #endif |
| 632 | #if defined(PNG_READ_gAMA_SUPPORTED) && defined(PNG_WRITE_gAMA_SUPPORTED) |
| 633 | { |
| 634 | double gamma; |
| 635 | |
| 636 | if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) |
| 637 | { |
| 638 | png_set_gAMA(write_ptr, write_info_ptr, gamma); |
| 639 | } |
| 640 | } |
| 641 | #endif |
| 642 | #if defined(PNG_READ_sRGB_SUPPORTED) && defined(PNG_WRITE_sRGB_SUPPORTED) |
| 643 | { |
| 644 | int intent; |
| 645 | |
| 646 | if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) |
| 647 | { |
| 648 | png_set_sRGB(write_ptr, write_info_ptr, intent); |
| 649 | } |
| 650 | } |
| 651 | #endif |
| 652 | #if defined(PNG_READ_hIST_SUPPORTED) && defined(PNG_WRITE_hIST_SUPPORTED) |
| 653 | { |
| 654 | png_uint_16p hist; |
| 655 | |
| 656 | if (png_get_hIST(read_ptr, read_info_ptr, &hist)) |
| 657 | { |
| 658 | png_set_hIST(write_ptr, write_info_ptr, hist); |
| 659 | } |
| 660 | } |
| 661 | #endif |
| 662 | #if defined(PNG_READ_oFFs_SUPPORTED) && defined(PNG_WRITE_oFFs_SUPPORTED) |
| 663 | { |
| 664 | png_uint_32 offset_x, offset_y; |
| 665 | int unit_type; |
| 666 | |
| 667 | if (png_get_oFFs(read_ptr, read_info_ptr,&offset_x,&offset_y,&unit_type)) |
| 668 | { |
| 669 | png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); |
| 670 | } |
| 671 | } |
| 672 | #endif |
| 673 | #if defined(PNG_READ_pCAL_SUPPORTED) && defined(PNG_WRITE_pCAL_SUPPORTED) |
| 674 | { |
| 675 | png_charp purpose, units; |
| 676 | png_charpp params; |
| 677 | png_int_32 X0, X1; |
| 678 | int type, nparams; |
| 679 | |
| 680 | if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, |
| 681 | &nparams, &units, ¶ms)) |
| 682 | { |
| 683 | png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, |
| 684 | nparams, units, params); |
| 685 | } |
| 686 | } |
| 687 | #endif |
| 688 | #if defined(PNG_READ_pHYs_SUPPORTED) && defined(PNG_WRITE_pHYs_SUPPORTED) |
| 689 | { |
| 690 | png_uint_32 res_x, res_y; |
| 691 | int unit_type; |
| 692 | |
| 693 | if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) |
| 694 | { |
| 695 | png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); |
| 696 | } |
| 697 | } |
| 698 | #endif |
| 699 | { |
| 700 | png_colorp palette; |
| 701 | int num_palette; |
| 702 | |
| 703 | if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) |
| 704 | { |
| 705 | png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); |
| 706 | } |
| 707 | } |
| 708 | #if defined(PNG_READ_sBIT_SUPPORTED) && defined(PNG_WRITE_sBIT_SUPPORTED) |
| 709 | { |
| 710 | png_color_8p sig_bit; |
| 711 | |
| 712 | if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) |
| 713 | { |
| 714 | png_set_sBIT(write_ptr, write_info_ptr, sig_bit); |
| 715 | } |
| 716 | } |
| 717 | #endif |
| 718 | #if (defined(PNG_READ_tEXt_SUPPORTED) && defined(PNG_WRITE_tEXt_SUPPORTED)) || \ |
| 719 | (defined(PNG_READ_zTXt_SUPPORTED) && defined(PNG_WRITE_zTXt_SUPPORTED)) |
| 720 | { |
| 721 | png_textp text_ptr; |
| 722 | int num_text; |
| 723 | |
| 724 | if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) |
| 725 | { |
| 726 | png_debug1(0, "Handling %d tEXt/zTXt chunks\n", num_text); |
| 727 | png_set_text(write_ptr, write_info_ptr, text_ptr, num_text); |
| 728 | } |
| 729 | } |
| 730 | #endif |
| 731 | #if defined(PNG_READ_tIME_SUPPORTED) && defined(PNG_WRITE_tIME_SUPPORTED) |
| 732 | { |
| 733 | png_timep mod_time; |
| 734 | |
| 735 | if (png_get_tIME(read_ptr, read_info_ptr, &mod_time)) |
| 736 | { |
| 737 | png_set_tIME(write_ptr, write_info_ptr, mod_time); |
| 738 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
| 739 | /* we have to use png_strcpy instead of "=" because the string |
| 740 | pointed to by png_convert_to_rfc1123() gets free'ed before |
| 741 | we use it */ |
| 742 | png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time)); |
| 743 | tIME_chunk_present++; |
| 744 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 745 | } |
| 746 | } |
| 747 | #endif |
| 748 | #if defined(PNG_READ_tRNS_SUPPORTED) && defined(PNG_WRITE_tRNS_SUPPORTED) |
| 749 | { |
| 750 | png_bytep trans; |
| 751 | int num_trans; |
| 752 | png_color_16p trans_values; |
| 753 | |
| 754 | if (png_get_tRNS(read_ptr, read_info_ptr, &trans, &num_trans, |
| 755 | &trans_values)) |
| 756 | { |
| 757 | png_set_tRNS(write_ptr, write_info_ptr, trans, num_trans, |
| 758 | trans_values); |
| 759 | } |
| 760 | } |
| 761 | #endif |
| 762 | |
| 763 | png_debug(0, "\nWriting info struct\n"); |
| 764 | png_write_info(write_ptr, write_info_ptr); |
| 765 | |
| 766 | png_debug(0, "\nAllocating row buffer \n"); |
| 767 | row_buf = (png_bytep)png_malloc(read_ptr, |
| 768 | png_get_rowbytes(read_ptr, read_info_ptr)); |
| 769 | if (row_buf == NULL) |
| 770 | { |
| 771 | fprintf(STDERR, "No memory to allocate row buffer\n"); |
| 772 | png_destroy_read_struct(&read_ptr, &read_info_ptr, (png_infopp)NULL); |
| 773 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 774 | fclose(fpin); |
| 775 | fclose(fpout); |
| 776 | return (1); |
| 777 | } |
| 778 | png_debug(0, "Writing row data\n"); |
| 779 | |
| 780 | num_pass = png_set_interlace_handling(read_ptr); |
| 781 | png_set_interlace_handling(write_ptr); |
| 782 | |
| 783 | for (pass = 0; pass < num_pass; pass++) |
| 784 | { |
| 785 | png_debug1(0, "Writing row data for pass %d\n",pass); |
| 786 | for (y = 0; y < height; y++) |
| 787 | { |
| 788 | png_read_rows(read_ptr, (png_bytepp)&row_buf, (png_bytepp)NULL, 1); |
| 789 | png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | png_debug(0, "Reading and writing end_info data\n"); |
| 794 | png_read_end(read_ptr, end_info_ptr); |
| 795 | png_write_end(write_ptr, end_info_ptr); |
| 796 | |
| 797 | #ifdef PNG_EASY_ACCESS_SUPPORTED |
| 798 | if(verbose) |
| 799 | { |
| 800 | png_uint_32 iwidth, iheight; |
| 801 | iwidth = png_get_image_width(write_ptr, write_info_ptr); |
| 802 | iheight = png_get_image_height(write_ptr, write_info_ptr); |
| 803 | fprintf(STDERR, "Image width = %lu, height = %lu\n", |
| 804 | iwidth, iheight); |
| 805 | } |
| 806 | #endif |
| 807 | |
| 808 | png_debug(0, "Destroying data structs\n"); |
| 809 | png_free(read_ptr, row_buf); |
| 810 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
| 811 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
| 812 | |
| 813 | fclose(fpin); |
| 814 | fclose(fpout); |
| 815 | |
| 816 | png_debug(0, "Opening files for comparison\n"); |
| 817 | if ((fpin = fopen(inname, "rb")) == NULL) |
| 818 | { |
| 819 | fprintf(STDERR, "Could not find file %s\n", inname); |
| 820 | return (1); |
| 821 | } |
| 822 | |
| 823 | if ((fpout = fopen(outname, "rb")) == NULL) |
| 824 | { |
| 825 | fprintf(STDERR, "Could not find file %s\n", outname); |
| 826 | fclose(fpin); |
| 827 | return (1); |
| 828 | } |
| 829 | |
| 830 | for(;;) |
| 831 | { |
| 832 | png_size_t num_in, num_out; |
| 833 | |
| 834 | num_in = fread(inbuf, 1, 1, fpin); |
| 835 | num_out = fread(outbuf, 1, 1, fpout); |
| 836 | |
| 837 | if (num_in != num_out) |
| 838 | { |
| 839 | fprintf(STDERR, "Files %s and %s are of a different size\n", |
| 840 | inname, outname); |
| 841 | if(wrote_question == 0) |
| 842 | { |
| 843 | fprintf(STDERR, |
| 844 | " Was %s written with the same chunk size (8k),",inname); |
| 845 | fprintf(STDERR, |
| 846 | " filtering\n heuristic (libpng default), compression"); |
| 847 | fprintf(STDERR, |
| 848 | " level (zlib default)\n and zlib version (%s)?\n\n", |
| 849 | ZLIB_VERSION); |
| 850 | wrote_question=1; |
| 851 | } |
| 852 | fclose(fpin); |
| 853 | fclose(fpout); |
| 854 | return (0); |
| 855 | } |
| 856 | |
| 857 | if (!num_in) |
| 858 | break; |
| 859 | |
| 860 | if (png_memcmp(inbuf, outbuf, num_in)) |
| 861 | { |
| 862 | fprintf(STDERR, "Files %s and %s are different\n", inname, outname); |
| 863 | if(wrote_question == 0) |
| 864 | { |
| 865 | fprintf(STDERR, |
| 866 | " Was %s written with the same chunk size (8k),",inname); |
| 867 | fprintf(STDERR, |
| 868 | " filtering\n heuristic (libpng default), compression"); |
| 869 | fprintf(STDERR, |
| 870 | " level (zlib default)\n and zlib version (%s)?\n\n", |
| 871 | ZLIB_VERSION); |
| 872 | wrote_question=1; |
| 873 | } |
| 874 | fclose(fpin); |
| 875 | fclose(fpout); |
| 876 | return (0); |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | fclose(fpin); |
| 881 | fclose(fpout); |
| 882 | |
| 883 | return (0); |
| 884 | } |
| 885 | |
| 886 | /* input and output filenames */ |
| 887 | #ifdef RISCOS |
| 888 | PNG_CONST char *inname = "pngtest/png"; |
| 889 | PNG_CONST char *outname = "pngout/png"; |
| 890 | #else |
| 891 | static PNG_CONST char *inname = "pngtest.png"; |
| 892 | static PNG_CONST char *outname = "pngout.png"; |
| 893 | #endif |
| 894 | |
| 895 | int |
| 896 | main(int argc, char *argv[]) |
| 897 | { |
| 898 | int multiple = 0; |
| 899 | int ierror = 0; |
| 900 | |
| 901 | fprintf(STDERR, "Testing libpng version %s\n", PNG_LIBPNG_VER_STRING); |
| 902 | fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION); |
| 903 | fprintf(STDERR,"%s",png_get_copyright(NULL)); |
| 904 | |
| 905 | /* Do some consistency checking on the memory allocation settings, I'm |
| 906 | not sure this matters, but it is nice to know, the first of these |
| 907 | tests should be impossible because of the way the macros are set |
| 908 | in pngconf.h */ |
| 909 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
| 910 | fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n"); |
| 911 | #endif |
| 912 | /* I think the following can happen. */ |
| 913 | #if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K) |
| 914 | fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n"); |
| 915 | #endif |
| 916 | |
| 917 | if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING)) |
| 918 | { |
| 919 | fprintf(STDERR, |
| 920 | "Warning: versions are different between png.h and png.c\n"); |
| 921 | fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING); |
| 922 | fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver); |
| 923 | ++ierror; |
| 924 | } |
| 925 | |
| 926 | if (argc > 1) |
| 927 | { |
| 928 | if (strcmp(argv[1], "-m") == 0) |
| 929 | { |
| 930 | multiple = 1; |
| 931 | status_dots_requested = 0; |
| 932 | } |
| 933 | else if (strcmp(argv[1], "-mv") == 0 || |
| 934 | strcmp(argv[1], "-vm") == 0 ) |
| 935 | { |
| 936 | multiple = 1; |
| 937 | verbose = 1; |
| 938 | status_dots_requested = 1; |
| 939 | } |
| 940 | else if (strcmp(argv[1], "-v") == 0) |
| 941 | { |
| 942 | verbose = 1; |
| 943 | status_dots_requested = 1; |
| 944 | inname = argv[2]; |
| 945 | } |
| 946 | else |
| 947 | { |
| 948 | inname = argv[1]; |
| 949 | status_dots_requested = 0; |
| 950 | } |
| 951 | } |
| 952 | |
| 953 | if (!multiple && argc == 3+verbose) |
| 954 | outname = argv[2+verbose]; |
| 955 | |
| 956 | if ((!multiple && argc > 3+verbose) || (multiple && argc < 2)) |
| 957 | { |
| 958 | fprintf(STDERR, |
| 959 | "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", |
| 960 | argv[0], argv[0]); |
| 961 | fprintf(STDERR, |
| 962 | " reads/writes one PNG file (without -m) or multiple files (-m)\n"); |
| 963 | fprintf(STDERR, |
| 964 | " with -m %s is used as a temporary file\n", outname); |
| 965 | exit(1); |
| 966 | } |
| 967 | |
| 968 | if (multiple) |
| 969 | { |
| 970 | int i; |
| 971 | #ifdef PNG_USER_MEM_SUPPORTED |
| 972 | int allocation_now = current_allocation; |
| 973 | #endif |
| 974 | for (i=2; i<argc; ++i) |
| 975 | { |
| 976 | int kerror; |
| 977 | fprintf(STDERR, "Testing %s:",argv[i]); |
| 978 | kerror = test_one_file(argv[i], outname); |
| 979 | if (kerror == 0) |
| 980 | { |
| 981 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 982 | fprintf(STDERR, " PASS (%lu zero samples)\n",zero_samples); |
| 983 | #else |
| 984 | fprintf(STDERR, " PASS\n"); |
| 985 | #endif |
| 986 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
| 987 | if(tIME_chunk_present != 0) |
| 988 | fprintf(STDERR, " tIME = %s\n",tIME_string); |
| 989 | tIME_chunk_present = 0; |
| 990 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 991 | } |
| 992 | else |
| 993 | { |
| 994 | fprintf(STDERR, " FAIL\n"); |
| 995 | ierror += kerror; |
| 996 | } |
| 997 | #ifdef PNG_USER_MEM_SUPPORTED |
| 998 | if (allocation_now != current_allocation) |
| 999 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", |
| 1000 | current_allocation-allocation_now); |
| 1001 | if (current_allocation != 0) { |
| 1002 | memory_infop pinfo = pinformation; |
| 1003 | |
| 1004 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", |
| 1005 | current_allocation); |
| 1006 | while (pinfo != NULL) { |
| 1007 | fprintf(STDERR, " %d bytes at %x\n", pinfo->size, pinfo->pointer); |
| 1008 | pinfo = pinfo->next; |
| 1009 | } |
| 1010 | } |
| 1011 | #endif |
| 1012 | } |
| 1013 | #ifdef PNG_USER_MEM_SUPPORTED |
| 1014 | fprintf(STDERR, "Maximum memory allocation: %d bytes\n", |
| 1015 | maximum_allocation); |
| 1016 | #endif |
| 1017 | } |
| 1018 | else |
| 1019 | { |
| 1020 | int i; |
| 1021 | for (i=0; i<3; ++i) { |
| 1022 | int kerror; |
| 1023 | #ifdef PNG_USER_MEM_SUPPORTED |
| 1024 | int allocation_now = current_allocation; |
| 1025 | #endif |
| 1026 | if (i == 1) status_dots_requested = 1; |
| 1027 | else if(verbose == 0)status_dots_requested = 0; |
| 1028 | if (i == 0 || verbose == 1 || ierror != 0) |
| 1029 | fprintf(STDERR, "Testing %s:",inname); |
| 1030 | kerror = test_one_file(inname, outname); |
| 1031 | if(kerror == 0) |
| 1032 | { |
| 1033 | if(verbose == 1 || i == 2) |
| 1034 | { |
| 1035 | #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 1036 | fprintf(STDERR, " PASS (%lu zero samples)\n",zero_samples); |
| 1037 | #else |
| 1038 | fprintf(STDERR, " PASS\n"); |
| 1039 | #endif |
| 1040 | #if defined(PNG_TIME_RFC1123_SUPPORTED) |
| 1041 | if(tIME_chunk_present != 0) |
| 1042 | fprintf(STDERR, " tIME = %s\n",tIME_string); |
| 1043 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1044 | } |
| 1045 | } |
| 1046 | else |
| 1047 | { |
| 1048 | if(verbose == 0 && i != 2) |
| 1049 | fprintf(STDERR, "Testing %s:",inname); |
| 1050 | fprintf(STDERR, " FAIL\n"); |
| 1051 | ierror += kerror; |
| 1052 | } |
| 1053 | #ifdef PNG_USER_MEM_SUPPORTED |
| 1054 | if (allocation_now != current_allocation) |
| 1055 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", |
| 1056 | current_allocation-allocation_now); |
| 1057 | if (current_allocation != 0) { |
| 1058 | memory_infop pinfo = pinformation; |
| 1059 | |
| 1060 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", |
| 1061 | current_allocation); |
| 1062 | while (pinfo != NULL) { |
| 1063 | fprintf(STDERR, " %d bytes at %x\n", pinfo->size, pinfo->pointer); |
| 1064 | pinfo = pinfo->next; |
| 1065 | } |
| 1066 | } |
| 1067 | #endif |
| 1068 | } |
| 1069 | #ifdef PNG_USER_MEM_SUPPORTED |
| 1070 | fprintf(STDERR, "Maximum memory allocation: %d bytes\n", |
| 1071 | maximum_allocation); |
| 1072 | #endif |
| 1073 | } |
| 1074 | |
| 1075 | if (ierror == 0) |
| 1076 | fprintf(STDERR, "libpng passes test\n"); |
| 1077 | else |
| 1078 | fprintf(STDERR, "libpng FAILS test\n"); |
| 1079 | return (int)(ierror != 0); |
| 1080 | } |
| 1081 | |