| | 1 | |
| | 2 | /* pngconf.h - machine configurable file for libpng |
| | 3 | * |
| | 4 | * libpng version 1.4.4 - September 23, 2010 |
| | 5 | * For conditions of distribution and use, see copyright notice in png.h |
| | 6 | * Copyright (c) 1998-2010 Glenn Randers-Pehrson |
| | 7 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
| | 8 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
| | 9 | * |
| | 10 | * This code is released under the libpng license. |
| | 11 | * For conditions of distribution and use, see the disclaimer |
| | 12 | * and license in png.h |
| | 13 | * |
| | 14 | */ |
| | 15 | |
| | 16 | /* Any machine specific code is near the front of this file, so if you |
| | 17 | * are configuring libpng for a machine, you may want to read the section |
| | 18 | * starting here down to where it starts to typedef png_color, png_text, |
| | 19 | * and png_info. |
| | 20 | */ |
| | 21 | |
| | 22 | #ifndef PNGCONF_H |
| | 23 | #define PNGCONF_H |
| | 24 | |
| | 25 | #ifdef __DMC__ |
| | 26 | #define PNG_NO_SNPRINTF |
| | 27 | #endif |
| | 28 | |
| | 29 | #ifndef PNG_NO_LIMITS_H |
| | 30 | # include <limits.h> |
| | 31 | #endif |
| | 32 | |
| | 33 | /* Added at libpng-1.2.9 */ |
| | 34 | |
| | 35 | /* config.h is created by and PNG_CONFIGURE_LIBPNG is set by the "configure" |
| | 36 | * script. |
| | 37 | */ |
| | 38 | #ifdef PNG_CONFIGURE_LIBPNG |
| | 39 | # ifdef HAVE_CONFIG_H |
| | 40 | # include "config.h" |
| | 41 | # endif |
| | 42 | #endif |
| | 43 | |
| | 44 | /* |
| | 45 | * Added at libpng-1.2.8 |
| | 46 | * |
| | 47 | * PNG_USER_CONFIG has to be defined on the compiler command line. This |
| | 48 | * includes the resource compiler for Windows DLL configurations. |
| | 49 | */ |
| | 50 | #ifdef PNG_USER_CONFIG |
| | 51 | # include "pngusr.h" |
| | 52 | # ifndef PNG_USER_PRIVATEBUILD |
| | 53 | # define PNG_USER_PRIVATEBUILD |
| | 54 | # endif |
| | 55 | #endif |
| | 56 | |
| | 57 | /* |
| | 58 | * If you create a private DLL you should define in "pngusr.h" the following: |
| | 59 | * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of |
| | 60 | * the DLL was built> |
| | 61 | * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." |
| | 62 | * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to |
| | 63 | * distinguish your DLL from those of the official release. These |
| | 64 | * correspond to the trailing letters that come after the version |
| | 65 | * number and must match your private DLL name> |
| | 66 | * e.g. // private DLL "libpng14gx.dll" |
| | 67 | * #define PNG_USER_DLLFNAME_POSTFIX "gx" |
| | 68 | * |
| | 69 | * The following macros are also at your disposal if you want to complete the |
| | 70 | * DLL VERSIONINFO structure. |
| | 71 | * - PNG_USER_VERSIONINFO_COMMENTS |
| | 72 | * - PNG_USER_VERSIONINFO_COMPANYNAME |
| | 73 | * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS |
| | 74 | */ |
| | 75 | |
| | 76 | #ifdef __STDC__ |
| | 77 | # ifdef SPECIALBUILD |
| | 78 | # pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ |
| | 79 | are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") |
| | 80 | # endif |
| | 81 | |
| | 82 | # ifdef PRIVATEBUILD |
| | 83 | # pragma message("PRIVATEBUILD is deprecated.\ |
| | 84 | Use PNG_USER_PRIVATEBUILD instead.") |
| | 85 | # define PNG_USER_PRIVATEBUILD PRIVATEBUILD |
| | 86 | # endif |
| | 87 | #endif /* __STDC__ */ |
| | 88 | |
| | 89 | /* End of material added to libpng-1.2.8 */ |
| | 90 | |
| | 91 | #ifndef PNG_VERSION_INFO_ONLY |
| | 92 | |
| | 93 | /* This is the size of the compression buffer, and thus the size of |
| | 94 | * an IDAT chunk. Make this whatever size you feel is best for your |
| | 95 | * machine. One of these will be allocated per png_struct. When this |
| | 96 | * is full, it writes the data to the disk, and does some other |
| | 97 | * calculations. Making this an extremely small size will slow |
| | 98 | * the library down, but you may want to experiment to determine |
| | 99 | * where it becomes significant, if you are concerned with memory |
| | 100 | * usage. Note that zlib allocates at least 32Kb also. For readers, |
| | 101 | * this describes the size of the buffer available to read the data in. |
| | 102 | * Unless this gets smaller than the size of a row (compressed), |
| | 103 | * it should not make much difference how big this is. |
| | 104 | */ |
| | 105 | |
| | 106 | #ifndef PNG_ZBUF_SIZE |
| | 107 | # define PNG_ZBUF_SIZE 8192 |
| | 108 | #endif |
| | 109 | |
| | 110 | /* Enable if you want a write-only libpng */ |
| | 111 | |
| | 112 | #ifndef PNG_NO_READ_SUPPORTED |
| | 113 | # define PNG_READ_SUPPORTED |
| | 114 | #endif |
| | 115 | |
| | 116 | /* Enable if you want a read-only libpng */ |
| | 117 | |
| | 118 | #ifndef PNG_NO_WRITE_SUPPORTED |
| | 119 | # define PNG_WRITE_SUPPORTED |
| | 120 | #endif |
| | 121 | |
| | 122 | /* Enabled in 1.4.0. */ |
| | 123 | #ifdef PNG_ALLOW_BENIGN_ERRORS |
| | 124 | # define png_benign_error png_warning |
| | 125 | # define png_chunk_benign_error png_chunk_warning |
| | 126 | #else |
| | 127 | # ifndef PNG_BENIGN_ERRORS_SUPPORTED |
| | 128 | # define png_benign_error png_error |
| | 129 | # define png_chunk_benign_error png_chunk_error |
| | 130 | # endif |
| | 131 | #endif |
| | 132 | |
| | 133 | /* Added at libpng version 1.4.0 */ |
| | 134 | #if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED) |
| | 135 | # define PNG_WARNINGS_SUPPORTED |
| | 136 | #endif |
| | 137 | |
| | 138 | /* Added at libpng version 1.4.0 */ |
| | 139 | #if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED) |
| | 140 | # define PNG_ERROR_TEXT_SUPPORTED |
| | 141 | #endif |
| | 142 | |
| | 143 | /* Added at libpng version 1.4.0 */ |
| | 144 | #if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED) |
| | 145 | # define PNG_CHECK_cHRM_SUPPORTED |
| | 146 | #endif |
| | 147 | |
| | 148 | /* Added at libpng version 1.4.0 */ |
| | 149 | #if !defined(PNG_NO_ALIGNED_MEMORY) && !defined(PNG_ALIGNED_MEMORY_SUPPORTED) |
| | 150 | # define PNG_ALIGNED_MEMORY_SUPPORTED |
| | 151 | #endif |
| | 152 | |
| | 153 | /* Enabled by default in 1.2.0. You can disable this if you don't need to |
| | 154 | support PNGs that are embedded in MNG datastreams */ |
| | 155 | #ifndef PNG_NO_MNG_FEATURES |
| | 156 | # ifndef PNG_MNG_FEATURES_SUPPORTED |
| | 157 | # define PNG_MNG_FEATURES_SUPPORTED |
| | 158 | # endif |
| | 159 | #endif |
| | 160 | |
| | 161 | /* Added at libpng version 1.4.0 */ |
| | 162 | #ifndef PNG_NO_FLOATING_POINT_SUPPORTED |
| | 163 | # ifndef PNG_FLOATING_POINT_SUPPORTED |
| | 164 | # define PNG_FLOATING_POINT_SUPPORTED |
| | 165 | # endif |
| | 166 | #endif |
| | 167 | |
| | 168 | /* Added at libpng-1.4.0beta49 for testing (this test is no longer used |
| | 169 | in libpng and png_calloc() is always present) |
| | 170 | */ |
| | 171 | #define PNG_CALLOC_SUPPORTED |
| | 172 | |
| | 173 | /* If you are running on a machine where you cannot allocate more |
| | 174 | * than 64K of memory at once, uncomment this. While libpng will not |
| | 175 | * normally need that much memory in a chunk (unless you load up a very |
| | 176 | * large file), zlib needs to know how big of a chunk it can use, and |
| | 177 | * libpng thus makes sure to check any memory allocation to verify it |
| | 178 | * will fit into memory. |
| | 179 | #define PNG_MAX_MALLOC_64K |
| | 180 | */ |
| | 181 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
| | 182 | # define PNG_MAX_MALLOC_64K |
| | 183 | #endif |
| | 184 | |
| | 185 | /* Special munging to support doing things the 'cygwin' way: |
| | 186 | * 'Normal' png-on-win32 defines/defaults: |
| | 187 | * PNG_BUILD_DLL -- building dll |
| | 188 | * PNG_USE_DLL -- building an application, linking to dll |
| | 189 | * (no define) -- building static library, or building an |
| | 190 | * application and linking to the static lib |
| | 191 | * 'Cygwin' defines/defaults: |
| | 192 | * PNG_BUILD_DLL -- (ignored) building the dll |
| | 193 | * (no define) -- (ignored) building an application, linking to the dll |
| | 194 | * PNG_STATIC -- (ignored) building the static lib, or building an |
| | 195 | * application that links to the static lib. |
| | 196 | * ALL_STATIC -- (ignored) building various static libs, or building an |
| | 197 | * application that links to the static libs. |
| | 198 | * Thus, |
| | 199 | * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and |
| | 200 | * this bit of #ifdefs will define the 'correct' config variables based on |
| | 201 | * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but |
| | 202 | * unnecessary. |
| | 203 | * |
| | 204 | * Also, the precedence order is: |
| | 205 | * ALL_STATIC (since we can't #undef something outside our namespace) |
| | 206 | * PNG_BUILD_DLL |
| | 207 | * PNG_STATIC |
| | 208 | * (nothing) == PNG_USE_DLL |
| | 209 | * |
| | 210 | * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent |
| | 211 | * of auto-import in binutils, we no longer need to worry about |
| | 212 | * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, |
| | 213 | * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes |
| | 214 | * to __declspec() stuff. However, we DO need to worry about |
| | 215 | * PNG_BUILD_DLL and PNG_STATIC because those change some defaults |
| | 216 | * such as CONSOLE_IO. |
| | 217 | */ |
| | 218 | #ifdef __CYGWIN__ |
| | 219 | # ifdef ALL_STATIC |
| | 220 | # ifdef PNG_BUILD_DLL |
| | 221 | # undef PNG_BUILD_DLL |
| | 222 | # endif |
| | 223 | # ifdef PNG_USE_DLL |
| | 224 | # undef PNG_USE_DLL |
| | 225 | # endif |
| | 226 | # ifdef PNG_DLL |
| | 227 | # undef PNG_DLL |
| | 228 | # endif |
| | 229 | # ifndef PNG_STATIC |
| | 230 | # define PNG_STATIC |
| | 231 | # endif |
| | 232 | # else |
| | 233 | # ifdef PNG_BUILD_DLL |
| | 234 | # ifdef PNG_STATIC |
| | 235 | # undef PNG_STATIC |
| | 236 | # endif |
| | 237 | # ifdef PNG_USE_DLL |
| | 238 | # undef PNG_USE_DLL |
| | 239 | # endif |
| | 240 | # ifndef PNG_DLL |
| | 241 | # define PNG_DLL |
| | 242 | # endif |
| | 243 | # else |
| | 244 | # ifdef PNG_STATIC |
| | 245 | # ifdef PNG_USE_DLL |
| | 246 | # undef PNG_USE_DLL |
| | 247 | # endif |
| | 248 | # ifdef PNG_DLL |
| | 249 | # undef PNG_DLL |
| | 250 | # endif |
| | 251 | # else |
| | 252 | # ifndef PNG_USE_DLL |
| | 253 | # define PNG_USE_DLL |
| | 254 | # endif |
| | 255 | # ifndef PNG_DLL |
| | 256 | # define PNG_DLL |
| | 257 | # endif |
| | 258 | # endif |
| | 259 | # endif |
| | 260 | # endif |
| | 261 | #endif |
| | 262 | |
| | 263 | /* This protects us against compilers that run on a windowing system |
| | 264 | * and thus don't have or would rather us not use the stdio types: |
| | 265 | * stdin, stdout, and stderr. The only one currently used is stderr |
| | 266 | * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will |
| | 267 | * prevent these from being compiled and used. #defining PNG_NO_STDIO |
| | 268 | * will also prevent these, plus will prevent the entire set of stdio |
| | 269 | * macros and functions (FILE *, printf, etc.) from being compiled and used, |
| | 270 | * unless (PNG_DEBUG > 0) has been #defined. |
| | 271 | * |
| | 272 | * #define PNG_NO_CONSOLE_IO |
| | 273 | * #define PNG_NO_STDIO |
| | 274 | */ |
| | 275 | |
| | 276 | #ifdef _WIN32_WCE |
| | 277 | # define PNG_NO_CONSOLE_IO |
| | 278 | # define PNG_NO_STDIO |
| | 279 | # define PNG_NO_TIME_RFC1123 |
| | 280 | # ifdef PNG_DEBUG |
| | 281 | # undef PNG_DEBUG |
| | 282 | # endif |
| | 283 | #endif |
| | 284 | |
| | 285 | #if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED) |
| | 286 | # define PNG_STDIO_SUPPORTED |
| | 287 | #endif |
| | 288 | |
| | 289 | #ifdef PNG_BUILD_DLL |
| | 290 | # if !defined(PNG_CONSOLE_IO_SUPPORTED) && !defined(PNG_NO_CONSOLE_IO) |
| | 291 | # define PNG_NO_CONSOLE_IO |
| | 292 | # endif |
| | 293 | #endif |
| | 294 | |
| | 295 | # ifdef PNG_NO_STDIO |
| | 296 | # ifndef PNG_NO_CONSOLE_IO |
| | 297 | # define PNG_NO_CONSOLE_IO |
| | 298 | # endif |
| | 299 | # ifdef PNG_DEBUG |
| | 300 | # if (PNG_DEBUG > 0) |
| | 301 | # include <stdio.h> |
| | 302 | # endif |
| | 303 | # endif |
| | 304 | # else |
| | 305 | # include <stdio.h> |
| | 306 | # endif |
| | 307 | |
| | 308 | #if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED) |
| | 309 | # define PNG_CONSOLE_IO_SUPPORTED |
| | 310 | #endif |
| | 311 | |
| | 312 | /* This macro protects us against machines that don't have function |
| | 313 | * prototypes (ie K&R style headers). If your compiler does not handle |
| | 314 | * function prototypes, define this macro and use the included ansi2knr. |
| | 315 | * I've always been able to use _NO_PROTO as the indicator, but you may |
| | 316 | * need to drag the empty declaration out in front of here, or change the |
| | 317 | * ifdef to suit your own needs. |
| | 318 | */ |
| | 319 | #ifndef PNGARG |
| | 320 | |
| | 321 | #ifdef OF /* zlib prototype munger */ |
| | 322 | # define PNGARG(arglist) OF(arglist) |
| | 323 | #else |
| | 324 | |
| | 325 | #ifdef _NO_PROTO |
| | 326 | # define PNGARG(arglist) () |
| | 327 | #else |
| | 328 | # define PNGARG(arglist) arglist |
| | 329 | #endif /* _NO_PROTO */ |
| | 330 | |
| | 331 | #endif /* OF */ |
| | 332 | |
| | 333 | #endif /* PNGARG */ |
| | 334 | |
| | 335 | /* Try to determine if we are compiling on a Mac. Note that testing for |
| | 336 | * just __MWERKS__ is not good enough, because the Codewarrior is now used |
| | 337 | * on non-Mac platforms. |
| | 338 | */ |
| | 339 | #ifndef MACOS |
| | 340 | # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ |
| | 341 | defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) |
| | 342 | # define MACOS |
| | 343 | # endif |
| | 344 | #endif |
| | 345 | |
| | 346 | /* Enough people need this for various reasons to include it here */ |
| | 347 | #if !defined(MACOS) && !defined(RISCOS) |
| | 348 | # include <sys/types.h> |
| | 349 | #endif |
| | 350 | |
| | 351 | /* PNG_SETJMP_NOT_SUPPORTED and PNG_NO_SETJMP_SUPPORTED are deprecated. */ |
| | 352 | #if !defined(PNG_NO_SETJMP) && \ |
| | 353 | !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) |
| | 354 | # define PNG_SETJMP_SUPPORTED |
| | 355 | #endif |
| | 356 | |
| | 357 | #ifdef PNG_SETJMP_SUPPORTED |
| | 358 | /* This is an attempt to force a single setjmp behaviour on Linux. If |
| | 359 | * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. |
| | 360 | * |
| | 361 | * You can bypass this test if you know that your application uses exactly |
| | 362 | * the same setjmp.h that was included when libpng was built. Only define |
| | 363 | * PNG_SKIP_SETJMP_CHECK while building your application, prior to the |
| | 364 | * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK |
| | 365 | * while building a separate libpng library for general use. |
| | 366 | */ |
| | 367 | |
| | 368 | # ifndef PNG_SKIP_SETJMP_CHECK |
| | 369 | # ifdef __linux__ |
| | 370 | # ifdef _BSD_SOURCE |
| | 371 | # define PNG_SAVE_BSD_SOURCE |
| | 372 | # undef _BSD_SOURCE |
| | 373 | # endif |
| | 374 | # ifdef _SETJMP_H |
| | 375 | /* If you encounter a compiler error here, see the explanation |
| | 376 | * near the end of INSTALL. |
| | 377 | */ |
| | 378 | __pngconf.h__ in libpng already includes setjmp.h; |
| | 379 | __dont__ include it again.; |
| | 380 | # endif |
| | 381 | # endif /* __linux__ */ |
| | 382 | # endif /* PNG_SKIP_SETJMP_CHECK */ |
| | 383 | |
| | 384 | /* Include setjmp.h for error handling */ |
| | 385 | # include <setjmp.h> |
| | 386 | |
| | 387 | # ifdef __linux__ |
| | 388 | # ifdef PNG_SAVE_BSD_SOURCE |
| | 389 | # ifdef _BSD_SOURCE |
| | 390 | # undef _BSD_SOURCE |
| | 391 | # endif |
| | 392 | # define _BSD_SOURCE |
| | 393 | # undef PNG_SAVE_BSD_SOURCE |
| | 394 | # endif |
| | 395 | # endif /* __linux__ */ |
| | 396 | #endif /* PNG_SETJMP_SUPPORTED */ |
| | 397 | |
| | 398 | #ifdef BSD |
| | 399 | # include <strings.h> |
| | 400 | #else |
| | 401 | # include <string.h> |
| | 402 | #endif |
| | 403 | |
| | 404 | /* Other defines for things like memory and the like can go here. */ |
| | 405 | |
| | 406 | /* This controls how fine the quantizing gets. As this allocates |
| | 407 | * a largish chunk of memory (32K), those who are not as concerned |
| | 408 | * with quantizing quality can decrease some or all of these. |
| | 409 | */ |
| | 410 | |
| | 411 | /* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS |
| | 412 | * These migration aids will be removed from libpng-1.5.0. |
| | 413 | */ |
| | 414 | #ifdef PNG_DITHER_RED_BITS |
| | 415 | # define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS |
| | 416 | #endif |
| | 417 | #ifdef PNG_DITHER_GREEN_BITS |
| | 418 | # define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS |
| | 419 | #endif |
| | 420 | #ifdef PNG_DITHER_BLUE_BITS |
| | 421 | # define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS |
| | 422 | #endif |
| | 423 | |
| | 424 | #ifndef PNG_QUANTIZE_RED_BITS |
| | 425 | # define PNG_QUANTIZE_RED_BITS 5 |
| | 426 | #endif |
| | 427 | #ifndef PNG_QUANTIZE_GREEN_BITS |
| | 428 | # define PNG_QUANTIZE_GREEN_BITS 5 |
| | 429 | #endif |
| | 430 | #ifndef PNG_QUANTIZE_BLUE_BITS |
| | 431 | # define PNG_QUANTIZE_BLUE_BITS 5 |
| | 432 | #endif |
| | 433 | |
| | 434 | /* This controls how fine the gamma correction becomes when you |
| | 435 | * are only interested in 8 bits anyway. Increasing this value |
| | 436 | * results in more memory being used, and more pow() functions |
| | 437 | * being called to fill in the gamma tables. Don't set this value |
| | 438 | * less then 8, and even that may not work (I haven't tested it). |
| | 439 | */ |
| | 440 | |
| | 441 | #ifndef PNG_MAX_GAMMA_8 |
| | 442 | # define PNG_MAX_GAMMA_8 11 |
| | 443 | #endif |
| | 444 | |
| | 445 | /* This controls how much a difference in gamma we can tolerate before |
| | 446 | * we actually start doing gamma conversion. |
| | 447 | */ |
| | 448 | #ifndef PNG_GAMMA_THRESHOLD |
| | 449 | # define PNG_GAMMA_THRESHOLD 0.05 |
| | 450 | #endif |
| | 451 | |
| | 452 | /* The following uses const char * instead of char * for error |
| | 453 | * and warning message functions, so some compilers won't complain. |
| | 454 | * If you do not want to use const, define PNG_NO_CONST. |
| | 455 | */ |
| | 456 | |
| | 457 | #ifndef PNG_CONST |
| | 458 | # ifndef PNG_NO_CONST |
| | 459 | # define PNG_CONST const |
| | 460 | # else |
| | 461 | # define PNG_CONST |
| | 462 | # endif |
| | 463 | #endif |
| | 464 | |
| | 465 | /* The following defines give you the ability to remove code from the |
| | 466 | * library that you will not be using. I wish I could figure out how to |
| | 467 | * automate this, but I can't do that without making it seriously hard |
| | 468 | * on the users. So if you are not using an ability, change the #define |
| | 469 | * to an #undef, or pass in PNG_NO_feature and that part of the library |
| | 470 | * will not be compiled. |
| | 471 | |
| | 472 | * If your linker can't find a function, you may want to make sure the |
| | 473 | * ability is defined here. Some of these depend upon some others being |
| | 474 | * defined. I haven't figured out all the interactions here, so you may |
| | 475 | * have to experiment awhile to get everything to compile. If you are |
| | 476 | * creating or using a shared library, you probably shouldn't touch this, |
| | 477 | * as it will affect the size of the structures, and this will cause bad |
| | 478 | * things to happen if the library and/or application ever change. |
| | 479 | */ |
| | 480 | |
| | 481 | /* Any features you will not be using can be undef'ed here */ |
| | 482 | |
| | 483 | /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user |
| | 484 | * to turn it off with PNG_NO_READ|WRITE_TRANSFORMS on the compile line, |
| | 485 | * then pick and choose which ones to define without having to edit this |
| | 486 | * file. It is safe to use the PNG_NO_READ|WRITE_TRANSFORMS |
| | 487 | * if you only want to have a png-compliant reader/writer but don't need |
| | 488 | * any of the extra transformations. This saves about 80 kbytes in a |
| | 489 | * typical installation of the library. (PNG_NO_* form added in version |
| | 490 | * 1.0.1c, for consistency; PNG_*_TRANSFORMS_NOT_SUPPORTED deprecated in |
| | 491 | * 1.4.0) |
| | 492 | */ |
| | 493 | |
| | 494 | /* Ignore attempt to turn off both floating and fixed point support */ |
| | 495 | #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ |
| | 496 | !defined(PNG_NO_FIXED_POINT_SUPPORTED) |
| | 497 | # define PNG_FIXED_POINT_SUPPORTED |
| | 498 | #endif |
| | 499 | |
| | 500 | #ifdef PNG_READ_SUPPORTED |
| | 501 | |
| | 502 | /* PNG_READ_TRANSFORMS_NOT_SUPPORTED is deprecated. */ |
| | 503 | #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ |
| | 504 | !defined(PNG_NO_READ_TRANSFORMS) |
| | 505 | # define PNG_READ_TRANSFORMS_SUPPORTED |
| | 506 | #endif |
| | 507 | |
| | 508 | #ifdef PNG_READ_TRANSFORMS_SUPPORTED |
| | 509 | # ifndef PNG_NO_READ_EXPAND |
| | 510 | # define PNG_READ_EXPAND_SUPPORTED |
| | 511 | # endif |
| | 512 | # ifndef PNG_NO_READ_SHIFT |
| | 513 | # define PNG_READ_SHIFT_SUPPORTED |
| | 514 | # endif |
| | 515 | # ifndef PNG_NO_READ_PACK |
| | 516 | # define PNG_READ_PACK_SUPPORTED |
| | 517 | # endif |
| | 518 | # ifndef PNG_NO_READ_BGR |
| | 519 | # define PNG_READ_BGR_SUPPORTED |
| | 520 | # endif |
| | 521 | # ifndef PNG_NO_READ_SWAP |
| | 522 | # define PNG_READ_SWAP_SUPPORTED |
| | 523 | # endif |
| | 524 | # ifndef PNG_NO_READ_PACKSWAP |
| | 525 | # define PNG_READ_PACKSWAP_SUPPORTED |
| | 526 | # endif |
| | 527 | # ifndef PNG_NO_READ_INVERT |
| | 528 | # define PNG_READ_INVERT_SUPPORTED |
| | 529 | # endif |
| | 530 | # ifndef PNG_NO_READ_QUANTIZE |
| | 531 | /* Prior to libpng-1.4.0 this was PNG_READ_DITHER_SUPPORTED */ |
| | 532 | # ifndef PNG_NO_READ_DITHER /* This migration aid will be removed */ |
| | 533 | # define PNG_READ_QUANTIZE_SUPPORTED |
| | 534 | # endif |
| | 535 | # endif |
| | 536 | # ifndef PNG_NO_READ_BACKGROUND |
| | 537 | # define PNG_READ_BACKGROUND_SUPPORTED |
| | 538 | # endif |
| | 539 | # ifndef PNG_NO_READ_16_TO_8 |
| | 540 | # define PNG_READ_16_TO_8_SUPPORTED |
| | 541 | # endif |
| | 542 | # ifndef PNG_NO_READ_FILLER |
| | 543 | # define PNG_READ_FILLER_SUPPORTED |
| | 544 | # endif |
| | 545 | # ifndef PNG_NO_READ_GAMMA |
| | 546 | # define PNG_READ_GAMMA_SUPPORTED |
| | 547 | # endif |
| | 548 | # ifndef PNG_NO_READ_GRAY_TO_RGB |
| | 549 | # define PNG_READ_GRAY_TO_RGB_SUPPORTED |
| | 550 | # endif |
| | 551 | # ifndef PNG_NO_READ_SWAP_ALPHA |
| | 552 | # define PNG_READ_SWAP_ALPHA_SUPPORTED |
| | 553 | # endif |
| | 554 | # ifndef PNG_NO_READ_INVERT_ALPHA |
| | 555 | # define PNG_READ_INVERT_ALPHA_SUPPORTED |
| | 556 | # endif |
| | 557 | # ifndef PNG_NO_READ_STRIP_ALPHA |
| | 558 | # define PNG_READ_STRIP_ALPHA_SUPPORTED |
| | 559 | # endif |
| | 560 | # ifndef PNG_NO_READ_USER_TRANSFORM |
| | 561 | # define PNG_READ_USER_TRANSFORM_SUPPORTED |
| | 562 | # endif |
| | 563 | # ifndef PNG_NO_READ_RGB_TO_GRAY |
| | 564 | # define PNG_READ_RGB_TO_GRAY_SUPPORTED |
| | 565 | # endif |
| | 566 | #endif /* PNG_READ_TRANSFORMS_SUPPORTED */ |
| | 567 | |
| | 568 | /* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */ |
| | 569 | #if !defined(PNG_NO_PROGRESSIVE_READ) && \ |
| | 570 | !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */ |
| | 571 | # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ |
| | 572 | #endif /* about interlacing capability! You'll */ |
| | 573 | /* still have interlacing unless you change the following define: */ |
| | 574 | |
| | 575 | #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ |
| | 576 | |
| | 577 | /* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */ |
| | 578 | #if !defined(PNG_NO_SEQUENTIAL_READ) && \ |
| | 579 | !defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \ |
| | 580 | !defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED) |
| | 581 | # define PNG_SEQUENTIAL_READ_SUPPORTED |
| | 582 | #endif |
| | 583 | |
| | 584 | #ifndef PNG_NO_READ_COMPOSITE_NODIV |
| | 585 | # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ |
| | 586 | # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ |
| | 587 | # endif |
| | 588 | #endif |
| | 589 | |
| | 590 | #if !defined(PNG_NO_GET_INT_32) || defined(PNG_READ_oFFS_SUPPORTED) || \ |
| | 591 | defined(PNG_READ_pCAL_SUPPORTED) |
| | 592 | # ifndef PNG_GET_INT_32_SUPPORTED |
| | 593 | # define PNG_GET_INT_32_SUPPORTED |
| | 594 | # endif |
| | 595 | #endif |
| | 596 | |
| | 597 | #endif /* PNG_READ_SUPPORTED */ |
| | 598 | |
| | 599 | #ifdef PNG_WRITE_SUPPORTED |
| | 600 | |
| | 601 | /* PNG_WRITE_TRANSFORMS_NOT_SUPPORTED is deprecated. */ |
| | 602 | #if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ |
| | 603 | !defined(PNG_NO_WRITE_TRANSFORMS) |
| | 604 | # define PNG_WRITE_TRANSFORMS_SUPPORTED |
| | 605 | #endif |
| | 606 | |
| | 607 | #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED |
| | 608 | # ifndef PNG_NO_WRITE_SHIFT |
| | 609 | # define PNG_WRITE_SHIFT_SUPPORTED |
| | 610 | # endif |
| | 611 | # ifndef PNG_NO_WRITE_PACK |
| | 612 | # define PNG_WRITE_PACK_SUPPORTED |
| | 613 | # endif |
| | 614 | # ifndef PNG_NO_WRITE_BGR |
| | 615 | # define PNG_WRITE_BGR_SUPPORTED |
| | 616 | # endif |
| | 617 | # ifndef PNG_NO_WRITE_SWAP |
| | 618 | # define PNG_WRITE_SWAP_SUPPORTED |
| | 619 | # endif |
| | 620 | # ifndef PNG_NO_WRITE_PACKSWAP |
| | 621 | # define PNG_WRITE_PACKSWAP_SUPPORTED |
| | 622 | # endif |
| | 623 | # ifndef PNG_NO_WRITE_INVERT |
| | 624 | # define PNG_WRITE_INVERT_SUPPORTED |
| | 625 | # endif |
| | 626 | # ifndef PNG_NO_WRITE_FILLER |
| | 627 | # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ |
| | 628 | # endif |
| | 629 | # ifndef PNG_NO_WRITE_SWAP_ALPHA |
| | 630 | # define PNG_WRITE_SWAP_ALPHA_SUPPORTED |
| | 631 | # endif |
| | 632 | # ifndef PNG_NO_WRITE_INVERT_ALPHA |
| | 633 | # define PNG_WRITE_INVERT_ALPHA_SUPPORTED |
| | 634 | # endif |
| | 635 | # ifndef PNG_NO_WRITE_USER_TRANSFORM |
| | 636 | # define PNG_WRITE_USER_TRANSFORM_SUPPORTED |
| | 637 | # endif |
| | 638 | #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ |
| | 639 | |
| | 640 | #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ |
| | 641 | !defined(PNG_WRITE_INTERLACING_SUPPORTED) |
| | 642 | /* This is not required for PNG-compliant encoders, but can cause |
| | 643 | * trouble if left undefined |
| | 644 | */ |
| | 645 | # define PNG_WRITE_INTERLACING_SUPPORTED |
| | 646 | #endif |
| | 647 | |
| | 648 | #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ |
| | 649 | !defined(PNG_WRITE_WEIGHTED_FILTER) && \ |
| | 650 | defined(PNG_FLOATING_POINT_SUPPORTED) |
| | 651 | # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED |
| | 652 | #endif |
| | 653 | |
| | 654 | #ifndef PNG_NO_WRITE_FLUSH |
| | 655 | # define PNG_WRITE_FLUSH_SUPPORTED |
| | 656 | #endif |
| | 657 | |
| | 658 | #if !defined(PNG_NO_SAVE_INT_32) || defined(PNG_WRITE_oFFS_SUPPORTED) || \ |
| | 659 | defined(PNG_WRITE_pCAL_SUPPORTED) |
| | 660 | # ifndef PNG_SAVE_INT_32_SUPPORTED |
| | 661 | # define PNG_SAVE_INT_32_SUPPORTED |
| | 662 | # endif |
| | 663 | #endif |
| | 664 | |
| | 665 | #endif /* PNG_WRITE_SUPPORTED */ |
| | 666 | |
| | 667 | #define PNG_NO_ERROR_NUMBERS |
| | 668 | |
| | 669 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ |
| | 670 | defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| | 671 | # ifndef PNG_NO_USER_TRANSFORM_PTR |
| | 672 | # define PNG_USER_TRANSFORM_PTR_SUPPORTED |
| | 673 | # endif |
| | 674 | #endif |
| | 675 | |
| | 676 | #if defined(PNG_STDIO_SUPPORTED) && !defined(PNG_TIME_RFC1123_SUPPORTED) |
| | 677 | # define PNG_TIME_RFC1123_SUPPORTED |
| | 678 | #endif |
| | 679 | |
| | 680 | /* This adds extra functions in pngget.c for accessing data from the |
| | 681 | * info pointer (added in version 0.99) |
| | 682 | * png_get_image_width() |
| | 683 | * png_get_image_height() |
| | 684 | * png_get_bit_depth() |
| | 685 | * png_get_color_type() |
| | 686 | * png_get_compression_type() |
| | 687 | * png_get_filter_type() |
| | 688 | * png_get_interlace_type() |
| | 689 | * png_get_pixel_aspect_ratio() |
| | 690 | * png_get_pixels_per_meter() |
| | 691 | * png_get_x_offset_pixels() |
| | 692 | * png_get_y_offset_pixels() |
| | 693 | * png_get_x_offset_microns() |
| | 694 | * png_get_y_offset_microns() |
| | 695 | */ |
| | 696 | #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) |
| | 697 | # define PNG_EASY_ACCESS_SUPPORTED |
| | 698 | #endif |
| | 699 | |
| | 700 | /* Added at libpng-1.2.0 */ |
| | 701 | #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) |
| | 702 | # define PNG_USER_MEM_SUPPORTED |
| | 703 | #endif |
| | 704 | |
| | 705 | /* Added at libpng-1.2.6 */ |
| | 706 | #ifndef PNG_NO_SET_USER_LIMITS |
| | 707 | # ifndef PNG_SET_USER_LIMITS_SUPPORTED |
| | 708 | # define PNG_SET_USER_LIMITS_SUPPORTED |
| | 709 | # endif |
| | 710 | /* Feature added at libpng-1.4.0, this flag added at 1.4.1 */ |
| | 711 | # ifndef PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED |
| | 712 | # define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED |
| | 713 | # endif |
| | 714 | /* Feature added at libpng-1.4.1, this flag added at 1.4.1 */ |
| | 715 | # ifndef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED |
| | 716 | # define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED |
| | 717 | # endif |
| | 718 | #endif |
| | 719 | |
| | 720 | /* Added at libpng-1.2.43 */ |
| | 721 | #ifndef PNG_USER_LIMITS_SUPPORTED |
| | 722 | # ifndef PNG_NO_USER_LIMITS |
| | 723 | # define PNG_USER_LIMITS_SUPPORTED |
| | 724 | # endif |
| | 725 | #endif |
| | 726 | |
| | 727 | /* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGs no matter |
| | 728 | * how large, set these two limits to 0x7fffffffL |
| | 729 | */ |
| | 730 | #ifndef PNG_USER_WIDTH_MAX |
| | 731 | # define PNG_USER_WIDTH_MAX 1000000L |
| | 732 | #endif |
| | 733 | #ifndef PNG_USER_HEIGHT_MAX |
| | 734 | # define PNG_USER_HEIGHT_MAX 1000000L |
| | 735 | #endif |
| | 736 | |
| | 737 | /* Added at libpng-1.2.43. To accept all valid PNGs no matter |
| | 738 | * how large, set these two limits to 0. |
| | 739 | */ |
| | 740 | #ifndef PNG_USER_CHUNK_CACHE_MAX |
| | 741 | # define PNG_USER_CHUNK_CACHE_MAX 0 |
| | 742 | #endif |
| | 743 | |
| | 744 | /* Added at libpng-1.2.43 */ |
| | 745 | #ifndef PNG_USER_CHUNK_MALLOC_MAX |
| | 746 | # define PNG_USER_CHUNK_MALLOC_MAX 0 |
| | 747 | #endif |
| | 748 | |
| | 749 | /* Added at libpng-1.4.0 */ |
| | 750 | #if !defined(PNG_NO_IO_STATE) && !defined(PNG_IO_STATE_SUPPORTED) |
| | 751 | # define PNG_IO_STATE_SUPPORTED |
| | 752 | #endif |
| | 753 | |
| | 754 | #ifndef PNG_LITERAL_SHARP |
| | 755 | # define PNG_LITERAL_SHARP 0x23 |
| | 756 | #endif |
| | 757 | #ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET |
| | 758 | # define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b |
| | 759 | #endif |
| | 760 | #ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET |
| | 761 | # define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d |
| | 762 | #endif |
| | 763 | #ifndef PNG_STRING_NEWLINE |
| | 764 | #define PNG_STRING_NEWLINE "\n" |
| | 765 | #endif |
| | 766 | |
| | 767 | /* These are currently experimental features, define them if you want */ |
| | 768 | |
| | 769 | /* Very little testing */ |
| | 770 | /* |
| | 771 | #ifdef PNG_READ_SUPPORTED |
| | 772 | # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| | 773 | # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| | 774 | # endif |
| | 775 | #endif |
| | 776 | */ |
| | 777 | |
| | 778 | /* This is only for PowerPC big-endian and 680x0 systems */ |
| | 779 | /* some testing */ |
| | 780 | /* |
| | 781 | #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED |
| | 782 | # define PNG_READ_BIG_ENDIAN_SUPPORTED |
| | 783 | #endif |
| | 784 | */ |
| | 785 | |
| | 786 | #if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS) |
| | 787 | # define PNG_USE_READ_MACROS |
| | 788 | #endif |
| | 789 | |
| | 790 | /* Buggy compilers (e.g., gcc 2.7.2.2) need PNG_NO_POINTER_INDEXING */ |
| | 791 | |
| | 792 | #if !defined(PNG_NO_POINTER_INDEXING) && \ |
| | 793 | !defined(PNG_POINTER_INDEXING_SUPPORTED) |
| | 794 | # define PNG_POINTER_INDEXING_SUPPORTED |
| | 795 | #endif |
| | 796 | |
| | 797 | |
| | 798 | /* Any chunks you are not interested in, you can undef here. The |
| | 799 | * ones that allocate memory may be expecially important (hIST, |
| | 800 | * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info |
| | 801 | * a bit smaller. |
| | 802 | */ |
| | 803 | |
| | 804 | /* The size of the png_text structure changed in libpng-1.0.6 when |
| | 805 | * iTXt support was added. iTXt support was turned off by default through |
| | 806 | * libpng-1.2.x, to support old apps that malloc the png_text structure |
| | 807 | * instead of calling png_set_text() and letting libpng malloc it. It |
| | 808 | * was turned on by default in libpng-1.4.0. |
| | 809 | */ |
| | 810 | |
| | 811 | /* PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */ |
| | 812 | #if defined(PNG_READ_SUPPORTED) && \ |
| | 813 | !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
| | 814 | !defined(PNG_NO_READ_ANCILLARY_CHUNKS) |
| | 815 | # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
| | 816 | #endif |
| | 817 | |
| | 818 | /* PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */ |
| | 819 | #if defined(PNG_WRITE_SUPPORTED) && \ |
| | 820 | !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
| | 821 | !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) |
| | 822 | # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
| | 823 | #endif |
| | 824 | |
| | 825 | #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
| | 826 | |
| | 827 | #ifdef PNG_NO_READ_TEXT |
| | 828 | # define PNG_NO_READ_iTXt |
| | 829 | # define PNG_NO_READ_tEXt |
| | 830 | # define PNG_NO_READ_zTXt |
| | 831 | #endif |
| | 832 | |
| | 833 | #ifndef PNG_NO_READ_bKGD |
| | 834 | # define PNG_READ_bKGD_SUPPORTED |
| | 835 | # define PNG_bKGD_SUPPORTED |
| | 836 | #endif |
| | 837 | #ifndef PNG_NO_READ_cHRM |
| | 838 | # define PNG_READ_cHRM_SUPPORTED |
| | 839 | # define PNG_cHRM_SUPPORTED |
| | 840 | #endif |
| | 841 | #ifndef PNG_NO_READ_gAMA |
| | 842 | # define PNG_READ_gAMA_SUPPORTED |
| | 843 | # define PNG_gAMA_SUPPORTED |
| | 844 | #endif |
| | 845 | #ifndef PNG_NO_READ_hIST |
| | 846 | # define PNG_READ_hIST_SUPPORTED |
| | 847 | # define PNG_hIST_SUPPORTED |
| | 848 | #endif |
| | 849 | #ifndef PNG_NO_READ_iCCP |
| | 850 | # define PNG_READ_iCCP_SUPPORTED |
| | 851 | # define PNG_iCCP_SUPPORTED |
| | 852 | #endif |
| | 853 | #ifndef PNG_NO_READ_iTXt |
| | 854 | # ifndef PNG_READ_iTXt_SUPPORTED |
| | 855 | # define PNG_READ_iTXt_SUPPORTED |
| | 856 | # endif |
| | 857 | # ifndef PNG_iTXt_SUPPORTED |
| | 858 | # define PNG_iTXt_SUPPORTED |
| | 859 | # endif |
| | 860 | #endif |
| | 861 | #ifndef PNG_NO_READ_oFFs |
| | 862 | # define PNG_READ_oFFs_SUPPORTED |
| | 863 | # define PNG_oFFs_SUPPORTED |
| | 864 | #endif |
| | 865 | #ifndef PNG_NO_READ_pCAL |
| | 866 | # define PNG_READ_pCAL_SUPPORTED |
| | 867 | # define PNG_pCAL_SUPPORTED |
| | 868 | #endif |
| | 869 | #ifndef PNG_NO_READ_sCAL |
| | 870 | # define PNG_READ_sCAL_SUPPORTED |
| | 871 | # define PNG_sCAL_SUPPORTED |
| | 872 | #endif |
| | 873 | #ifndef PNG_NO_READ_pHYs |
| | 874 | # define PNG_READ_pHYs_SUPPORTED |
| | 875 | # define PNG_pHYs_SUPPORTED |
| | 876 | #endif |
| | 877 | #ifndef PNG_NO_READ_sBIT |
| | 878 | # define PNG_READ_sBIT_SUPPORTED |
| | 879 | # define PNG_sBIT_SUPPORTED |
| | 880 | #endif |
| | 881 | #ifndef PNG_NO_READ_sPLT |
| | 882 | # define PNG_READ_sPLT_SUPPORTED |
| | 883 | # define PNG_sPLT_SUPPORTED |
| | 884 | #endif |
| | 885 | #ifndef PNG_NO_READ_sRGB |
| | 886 | # define PNG_READ_sRGB_SUPPORTED |
| | 887 | # define PNG_sRGB_SUPPORTED |
| | 888 | #endif |
| | 889 | #ifndef PNG_NO_READ_tEXt |
| | 890 | # define PNG_READ_tEXt_SUPPORTED |
| | 891 | # define PNG_tEXt_SUPPORTED |
| | 892 | #endif |
| | 893 | #ifndef PNG_NO_READ_tIME |
| | 894 | # define PNG_READ_tIME_SUPPORTED |
| | 895 | # define PNG_tIME_SUPPORTED |
| | 896 | #endif |
| | 897 | #ifndef PNG_NO_READ_tRNS |
| | 898 | # define PNG_READ_tRNS_SUPPORTED |
| | 899 | # define PNG_tRNS_SUPPORTED |
| | 900 | #endif |
| | 901 | #ifndef PNG_NO_READ_zTXt |
| | 902 | # define PNG_READ_zTXt_SUPPORTED |
| | 903 | # define PNG_zTXt_SUPPORTED |
| | 904 | #endif |
| | 905 | #ifndef PNG_NO_READ_OPT_PLTE |
| | 906 | # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ |
| | 907 | #endif /* optional PLTE chunk in RGB and RGBA images */ |
| | 908 | #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ |
| | 909 | defined(PNG_READ_zTXt_SUPPORTED) |
| | 910 | # define PNG_READ_TEXT_SUPPORTED |
| | 911 | # define PNG_TEXT_SUPPORTED |
| | 912 | #endif |
| | 913 | |
| | 914 | #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ |
| | 915 | |
| | 916 | #ifndef PNG_NO_READ_UNKNOWN_CHUNKS |
| | 917 | # ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| | 918 | # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| | 919 | # endif |
| | 920 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 921 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 922 | # endif |
| | 923 | # ifndef PNG_READ_USER_CHUNKS_SUPPORTED |
| | 924 | # define PNG_READ_USER_CHUNKS_SUPPORTED |
| | 925 | # endif |
| | 926 | #endif |
| | 927 | #ifndef PNG_NO_READ_USER_CHUNKS |
| | 928 | # ifndef PNG_READ_USER_CHUNKS_SUPPORTED |
| | 929 | # define PNG_READ_USER_CHUNKS_SUPPORTED |
| | 930 | # endif |
| | 931 | # ifndef PNG_USER_CHUNKS_SUPPORTED |
| | 932 | # define PNG_USER_CHUNKS_SUPPORTED |
| | 933 | # endif |
| | 934 | #endif |
| | 935 | #ifndef PNG_NO_HANDLE_AS_UNKNOWN |
| | 936 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 937 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 938 | # endif |
| | 939 | #endif |
| | 940 | |
| | 941 | #ifdef PNG_WRITE_SUPPORTED |
| | 942 | #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
| | 943 | |
| | 944 | #ifdef PNG_NO_WRITE_TEXT |
| | 945 | # define PNG_NO_WRITE_iTXt |
| | 946 | # define PNG_NO_WRITE_tEXt |
| | 947 | # define PNG_NO_WRITE_zTXt |
| | 948 | #endif |
| | 949 | #ifndef PNG_NO_WRITE_bKGD |
| | 950 | # define PNG_WRITE_bKGD_SUPPORTED |
| | 951 | # ifndef PNG_bKGD_SUPPORTED |
| | 952 | # define PNG_bKGD_SUPPORTED |
| | 953 | # endif |
| | 954 | #endif |
| | 955 | #ifndef PNG_NO_WRITE_cHRM |
| | 956 | # define PNG_WRITE_cHRM_SUPPORTED |
| | 957 | # ifndef PNG_cHRM_SUPPORTED |
| | 958 | # define PNG_cHRM_SUPPORTED |
| | 959 | # endif |
| | 960 | #endif |
| | 961 | #ifndef PNG_NO_WRITE_gAMA |
| | 962 | # define PNG_WRITE_gAMA_SUPPORTED |
| | 963 | # ifndef PNG_gAMA_SUPPORTED |
| | 964 | # define PNG_gAMA_SUPPORTED |
| | 965 | # endif |
| | 966 | #endif |
| | 967 | #ifndef PNG_NO_WRITE_hIST |
| | 968 | # define PNG_WRITE_hIST_SUPPORTED |
| | 969 | # ifndef PNG_hIST_SUPPORTED |
| | 970 | # define PNG_hIST_SUPPORTED |
| | 971 | # endif |
| | 972 | #endif |
| | 973 | #ifndef PNG_NO_WRITE_iCCP |
| | 974 | # define PNG_WRITE_iCCP_SUPPORTED |
| | 975 | # ifndef PNG_iCCP_SUPPORTED |
| | 976 | # define PNG_iCCP_SUPPORTED |
| | 977 | # endif |
| | 978 | #endif |
| | 979 | #ifndef PNG_NO_WRITE_iTXt |
| | 980 | # ifndef PNG_WRITE_iTXt_SUPPORTED |
| | 981 | # define PNG_WRITE_iTXt_SUPPORTED |
| | 982 | # endif |
| | 983 | # ifndef PNG_iTXt_SUPPORTED |
| | 984 | # define PNG_iTXt_SUPPORTED |
| | 985 | # endif |
| | 986 | #endif |
| | 987 | #ifndef PNG_NO_WRITE_oFFs |
| | 988 | # define PNG_WRITE_oFFs_SUPPORTED |
| | 989 | # ifndef PNG_oFFs_SUPPORTED |
| | 990 | # define PNG_oFFs_SUPPORTED |
| | 991 | # endif |
| | 992 | #endif |
| | 993 | #ifndef PNG_NO_WRITE_pCAL |
| | 994 | # define PNG_WRITE_pCAL_SUPPORTED |
| | 995 | # ifndef PNG_pCAL_SUPPORTED |
| | 996 | # define PNG_pCAL_SUPPORTED |
| | 997 | # endif |
| | 998 | #endif |
| | 999 | #ifndef PNG_NO_WRITE_sCAL |
| | 1000 | # define PNG_WRITE_sCAL_SUPPORTED |
| | 1001 | # ifndef PNG_sCAL_SUPPORTED |
| | 1002 | # define PNG_sCAL_SUPPORTED |
| | 1003 | # endif |
| | 1004 | #endif |
| | 1005 | #ifndef PNG_NO_WRITE_pHYs |
| | 1006 | # define PNG_WRITE_pHYs_SUPPORTED |
| | 1007 | # ifndef PNG_pHYs_SUPPORTED |
| | 1008 | # define PNG_pHYs_SUPPORTED |
| | 1009 | # endif |
| | 1010 | #endif |
| | 1011 | #ifndef PNG_NO_WRITE_sBIT |
| | 1012 | # define PNG_WRITE_sBIT_SUPPORTED |
| | 1013 | # ifndef PNG_sBIT_SUPPORTED |
| | 1014 | # define PNG_sBIT_SUPPORTED |
| | 1015 | # endif |
| | 1016 | #endif |
| | 1017 | #ifndef PNG_NO_WRITE_sPLT |
| | 1018 | # define PNG_WRITE_sPLT_SUPPORTED |
| | 1019 | # ifndef PNG_sPLT_SUPPORTED |
| | 1020 | # define PNG_sPLT_SUPPORTED |
| | 1021 | # endif |
| | 1022 | #endif |
| | 1023 | #ifndef PNG_NO_WRITE_sRGB |
| | 1024 | # define PNG_WRITE_sRGB_SUPPORTED |
| | 1025 | # ifndef PNG_sRGB_SUPPORTED |
| | 1026 | # define PNG_sRGB_SUPPORTED |
| | 1027 | # endif |
| | 1028 | #endif |
| | 1029 | #ifndef PNG_NO_WRITE_tEXt |
| | 1030 | # define PNG_WRITE_tEXt_SUPPORTED |
| | 1031 | # ifndef PNG_tEXt_SUPPORTED |
| | 1032 | # define PNG_tEXt_SUPPORTED |
| | 1033 | # endif |
| | 1034 | #endif |
| | 1035 | #ifndef PNG_NO_WRITE_tIME |
| | 1036 | # define PNG_WRITE_tIME_SUPPORTED |
| | 1037 | # ifndef PNG_tIME_SUPPORTED |
| | 1038 | # define PNG_tIME_SUPPORTED |
| | 1039 | # endif |
| | 1040 | #endif |
| | 1041 | #ifndef PNG_NO_WRITE_tRNS |
| | 1042 | # define PNG_WRITE_tRNS_SUPPORTED |
| | 1043 | # ifndef PNG_tRNS_SUPPORTED |
| | 1044 | # define PNG_tRNS_SUPPORTED |
| | 1045 | # endif |
| | 1046 | #endif |
| | 1047 | #ifndef PNG_NO_WRITE_zTXt |
| | 1048 | # define PNG_WRITE_zTXt_SUPPORTED |
| | 1049 | # ifndef PNG_zTXt_SUPPORTED |
| | 1050 | # define PNG_zTXt_SUPPORTED |
| | 1051 | # endif |
| | 1052 | #endif |
| | 1053 | #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ |
| | 1054 | defined(PNG_WRITE_zTXt_SUPPORTED) |
| | 1055 | # define PNG_WRITE_TEXT_SUPPORTED |
| | 1056 | # ifndef PNG_TEXT_SUPPORTED |
| | 1057 | # define PNG_TEXT_SUPPORTED |
| | 1058 | # endif |
| | 1059 | #endif |
| | 1060 | |
| | 1061 | #ifdef PNG_WRITE_tIME_SUPPORTED |
| | 1062 | # ifndef PNG_NO_CONVERT_tIME |
| | 1063 | # ifndef _WIN32_WCE |
| | 1064 | /* The "tm" structure is not supported on WindowsCE */ |
| | 1065 | # ifndef PNG_CONVERT_tIME_SUPPORTED |
| | 1066 | # define PNG_CONVERT_tIME_SUPPORTED |
| | 1067 | # endif |
| | 1068 | # endif |
| | 1069 | # endif |
| | 1070 | #endif |
| | 1071 | |
| | 1072 | #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ |
| | 1073 | |
| | 1074 | #ifndef PNG_NO_WRITE_FILTER |
| | 1075 | # ifndef PNG_WRITE_FILTER_SUPPORTED |
| | 1076 | # define PNG_WRITE_FILTER_SUPPORTED |
| | 1077 | # endif |
| | 1078 | #endif |
| | 1079 | |
| | 1080 | #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS |
| | 1081 | # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
| | 1082 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 1083 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 1084 | # endif |
| | 1085 | #endif |
| | 1086 | #ifndef PNG_NO_HANDLE_AS_UNKNOWN |
| | 1087 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 1088 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 1089 | # endif |
| | 1090 | #endif |
| | 1091 | #endif /* PNG_WRITE_SUPPORTED */ |
| | 1092 | |
| | 1093 | /* Turn this off to disable png_read_png() and |
| | 1094 | * png_write_png() and leave the row_pointers member |
| | 1095 | * out of the info structure. |
| | 1096 | */ |
| | 1097 | #ifndef PNG_NO_INFO_IMAGE |
| | 1098 | # define PNG_INFO_IMAGE_SUPPORTED |
| | 1099 | #endif |
| | 1100 | |
| | 1101 | /* Need the time information for converting tIME chunks */ |
| | 1102 | #ifdef PNG_CONVERT_tIME_SUPPORTED |
| | 1103 | /* "time.h" functions are not supported on WindowsCE */ |
| | 1104 | # include <time.h> |
| | 1105 | #endif |
| | 1106 | |
| | 1107 | /* Some typedefs to get us started. These should be safe on most of the |
| | 1108 | * common platforms. The typedefs should be at least as large as the |
| | 1109 | * numbers suggest (a png_uint_32 must be at least 32 bits long), but they |
| | 1110 | * don't have to be exactly that size. Some compilers dislike passing |
| | 1111 | * unsigned shorts as function parameters, so you may be better off using |
| | 1112 | * unsigned int for png_uint_16. |
| | 1113 | */ |
| | 1114 | |
| | 1115 | #if defined(INT_MAX) && (INT_MAX > 0x7ffffffeL) |
| | 1116 | typedef unsigned int png_uint_32; |
| | 1117 | typedef int png_int_32; |
| | 1118 | #else |
| | 1119 | typedef unsigned long png_uint_32; |
| | 1120 | typedef long png_int_32; |
| | 1121 | #endif |
| | 1122 | typedef unsigned short png_uint_16; |
| | 1123 | typedef short png_int_16; |
| | 1124 | typedef unsigned char png_byte; |
| | 1125 | |
| | 1126 | #ifdef PNG_NO_SIZE_T |
| | 1127 | typedef unsigned int png_size_t; |
| | 1128 | #else |
| | 1129 | typedef size_t png_size_t; |
| | 1130 | #endif |
| | 1131 | #define png_sizeof(x) (sizeof (x)) |
| | 1132 | |
| | 1133 | /* The following is needed for medium model support. It cannot be in the |
| | 1134 | * pngpriv.h header. Needs modification for other compilers besides |
| | 1135 | * MSC. Model independent support declares all arrays and pointers to be |
| | 1136 | * large using the far keyword. The zlib version used must also support |
| | 1137 | * model independent data. As of version zlib 1.0.4, the necessary changes |
| | 1138 | * have been made in zlib. The USE_FAR_KEYWORD define triggers other |
| | 1139 | * changes that are needed. (Tim Wegner) |
| | 1140 | */ |
| | 1141 | |
| | 1142 | /* Separate compiler dependencies (problem here is that zlib.h always |
| | 1143 | * defines FAR. (SJT) |
| | 1144 | */ |
| | 1145 | #ifdef __BORLANDC__ |
| | 1146 | # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) |
| | 1147 | # define LDATA 1 |
| | 1148 | # else |
| | 1149 | # define LDATA 0 |
| | 1150 | # endif |
| | 1151 | /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ |
| | 1152 | # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) |
| | 1153 | # define PNG_MAX_MALLOC_64K |
| | 1154 | # if (LDATA != 1) |
| | 1155 | # ifndef FAR |
| | 1156 | # define FAR __far |
| | 1157 | # endif |
| | 1158 | # define USE_FAR_KEYWORD |
| | 1159 | # endif /* LDATA != 1 */ |
| | 1160 | /* Possibly useful for moving data out of default segment. |
| | 1161 | * Uncomment it if you want. Could also define FARDATA as |
| | 1162 | * const if your compiler supports it. (SJT) |
| | 1163 | # define FARDATA FAR |
| | 1164 | */ |
| | 1165 | # endif /* __WIN32__, __FLAT__, __CYGWIN__ */ |
| | 1166 | #endif /* __BORLANDC__ */ |
| | 1167 | |
| | 1168 | |
| | 1169 | /* Suggest testing for specific compiler first before testing for |
| | 1170 | * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, |
| | 1171 | * making reliance oncertain keywords suspect. (SJT) |
| | 1172 | */ |
| | 1173 | |
| | 1174 | /* MSC Medium model */ |
| | 1175 | #ifdef FAR |
| | 1176 | # ifdef M_I86MM |
| | 1177 | # define USE_FAR_KEYWORD |
| | 1178 | # define FARDATA FAR |
| | 1179 | # include <dos.h> |
| | 1180 | # endif |
| | 1181 | #endif |
| | 1182 | |
| | 1183 | /* SJT: default case */ |
| | 1184 | #ifndef FAR |
| | 1185 | # define FAR |
| | 1186 | #endif |
| | 1187 | |
| | 1188 | /* At this point FAR is always defined */ |
| | 1189 | #ifndef FARDATA |
| | 1190 | # define FARDATA |
| | 1191 | #endif |
| | 1192 | |
| | 1193 | /* Typedef for floating-point numbers that are converted |
| | 1194 | to fixed-point with a multiple of 100,000, e.g., int_gamma */ |
| | 1195 | typedef png_int_32 png_fixed_point; |
| | 1196 | |
| | 1197 | /* Add typedefs for pointers */ |
| | 1198 | typedef void FAR * png_voidp; |
| | 1199 | typedef png_byte FAR * png_bytep; |
| | 1200 | typedef png_uint_32 FAR * png_uint_32p; |
| | 1201 | typedef png_int_32 FAR * png_int_32p; |
| | 1202 | typedef png_uint_16 FAR * png_uint_16p; |
| | 1203 | typedef png_int_16 FAR * png_int_16p; |
| | 1204 | typedef PNG_CONST char FAR * png_const_charp; |
| | 1205 | typedef char FAR * png_charp; |
| | 1206 | typedef png_fixed_point FAR * png_fixed_point_p; |
| | 1207 | |
| | 1208 | #ifndef PNG_NO_STDIO |
| | 1209 | typedef FILE * png_FILE_p; |
| | 1210 | #endif |
| | 1211 | |
| | 1212 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
| | 1213 | typedef double FAR * png_doublep; |
| | 1214 | #endif |
| | 1215 | |
| | 1216 | /* Pointers to pointers; i.e. arrays */ |
| | 1217 | typedef png_byte FAR * FAR * png_bytepp; |
| | 1218 | typedef png_uint_32 FAR * FAR * png_uint_32pp; |
| | 1219 | typedef png_int_32 FAR * FAR * png_int_32pp; |
| | 1220 | typedef png_uint_16 FAR * FAR * png_uint_16pp; |
| | 1221 | typedef png_int_16 FAR * FAR * png_int_16pp; |
| | 1222 | typedef PNG_CONST char FAR * FAR * png_const_charpp; |
| | 1223 | typedef char FAR * FAR * png_charpp; |
| | 1224 | typedef png_fixed_point FAR * FAR * png_fixed_point_pp; |
| | 1225 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
| | 1226 | typedef double FAR * FAR * png_doublepp; |
| | 1227 | #endif |
| | 1228 | |
| | 1229 | /* Pointers to pointers to pointers; i.e., pointer to array */ |
| | 1230 | typedef char FAR * FAR * FAR * png_charppp; |
| | 1231 | |
| | 1232 | /* Define PNG_BUILD_DLL if the module being built is a Windows |
| | 1233 | * LIBPNG DLL. |
| | 1234 | * |
| | 1235 | * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. |
| | 1236 | * It is equivalent to Microsoft predefined macro _DLL that is |
| | 1237 | * automatically defined when you compile using the share |
| | 1238 | * version of the CRT (C Run-Time library) |
| | 1239 | * |
| | 1240 | * The cygwin mods make this behavior a little different: |
| | 1241 | * Define PNG_BUILD_DLL if you are building a dll for use with cygwin |
| | 1242 | * Define PNG_STATIC if you are building a static library for use with cygwin, |
| | 1243 | * -or- if you are building an application that you want to link to the |
| | 1244 | * static library. |
| | 1245 | * PNG_USE_DLL is defined by default (no user action needed) unless one of |
| | 1246 | * the other flags is defined. |
| | 1247 | */ |
| | 1248 | |
| | 1249 | #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) |
| | 1250 | # define PNG_DLL |
| | 1251 | #endif |
| | 1252 | |
| | 1253 | /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", |
| | 1254 | * you may get warnings regarding the linkage of png_zalloc and png_zfree. |
| | 1255 | * Don't ignore those warnings; you must also reset the default calling |
| | 1256 | * convention in your compiler to match your PNGAPI, and you must build |
| | 1257 | * zlib and your applications the same way you build libpng. |
| | 1258 | */ |
| | 1259 | |
| | 1260 | #ifdef __CYGWIN__ |
| | 1261 | # undef PNGAPI |
| | 1262 | # define PNGAPI __cdecl |
| | 1263 | # undef PNG_IMPEXP |
| | 1264 | # define PNG_IMPEXP |
| | 1265 | #endif |
| | 1266 | |
| | 1267 | #ifdef __WATCOMC__ |
| | 1268 | # ifndef PNGAPI |
| | 1269 | # define PNGAPI |
| | 1270 | # endif |
| | 1271 | #endif |
| | 1272 | |
| | 1273 | #if defined(__MINGW32__) && !defined(PNG_MODULEDEF) |
| | 1274 | # ifndef PNG_NO_MODULEDEF |
| | 1275 | # define PNG_NO_MODULEDEF |
| | 1276 | # endif |
| | 1277 | #endif |
| | 1278 | |
| | 1279 | #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) |
| | 1280 | # define PNG_IMPEXP |
| | 1281 | #endif |
| | 1282 | |
| | 1283 | #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ |
| | 1284 | (( defined(_Windows) || defined(_WINDOWS) || \ |
| | 1285 | defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) |
| | 1286 | |
| | 1287 | # ifndef PNGAPI |
| | 1288 | # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) |
| | 1289 | # define PNGAPI __cdecl |
| | 1290 | # else |
| | 1291 | # define PNGAPI _cdecl |
| | 1292 | # endif |
| | 1293 | # endif |
| | 1294 | |
| | 1295 | # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ |
| | 1296 | 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) |
| | 1297 | # define PNG_IMPEXP |
| | 1298 | # endif |
| | 1299 | |
| | 1300 | # ifndef PNG_IMPEXP |
| | 1301 | |
| | 1302 | # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol |
| | 1303 | # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol |
| | 1304 | |
| | 1305 | /* Borland/Microsoft */ |
| | 1306 | # if defined(_MSC_VER) || defined(__BORLANDC__) |
| | 1307 | # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) |
| | 1308 | # define PNG_EXPORT PNG_EXPORT_TYPE1 |
| | 1309 | # else |
| | 1310 | # define PNG_EXPORT PNG_EXPORT_TYPE2 |
| | 1311 | # ifdef PNG_BUILD_DLL |
| | 1312 | # define PNG_IMPEXP __export |
| | 1313 | # else |
| | 1314 | # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in VC++ */ |
| | 1315 | # endif /* Exists in Borland C++ for |
| | 1316 | C++ classes (== huge) */ |
| | 1317 | # endif |
| | 1318 | # endif |
| | 1319 | |
| | 1320 | # ifndef PNG_IMPEXP |
| | 1321 | # ifdef PNG_BUILD_DLL |
| | 1322 | # define PNG_IMPEXP __declspec(dllexport) |
| | 1323 | # else |
| | 1324 | # define PNG_IMPEXP __declspec(dllimport) |
| | 1325 | # endif |
| | 1326 | # endif |
| | 1327 | # endif /* PNG_IMPEXP */ |
| | 1328 | #else /* !(DLL || non-cygwin WINDOWS) */ |
| | 1329 | # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) |
| | 1330 | # ifndef PNGAPI |
| | 1331 | # define PNGAPI _System |
| | 1332 | # endif |
| | 1333 | # else |
| | 1334 | # if 0 /* ... other platforms, with other meanings */ |
| | 1335 | # endif |
| | 1336 | # endif |
| | 1337 | #endif |
| | 1338 | |
| | 1339 | #ifndef PNGAPI |
| | 1340 | # define PNGAPI |
| | 1341 | #endif |
| | 1342 | #ifndef PNG_IMPEXP |
| | 1343 | # define PNG_IMPEXP |
| | 1344 | #endif |
| | 1345 | |
| | 1346 | #ifdef PNG_BUILDSYMS |
| | 1347 | # ifndef PNG_EXPORT |
| | 1348 | # define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END |
| | 1349 | # endif |
| | 1350 | #endif |
| | 1351 | |
| | 1352 | #ifndef PNG_EXPORT |
| | 1353 | # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol |
| | 1354 | #endif |
| | 1355 | |
| | 1356 | #define PNG_USE_LOCAL_ARRAYS /* Not used in libpng, defined for legacy apps */ |
| | 1357 | |
| | 1358 | /* Support for compiler specific function attributes. These are used |
| | 1359 | * so that where compiler support is available incorrect use of API |
| | 1360 | * functions in png.h will generate compiler warnings. |
| | 1361 | * |
| | 1362 | * Added at libpng-1.2.41. |
| | 1363 | */ |
| | 1364 | |
| | 1365 | #ifndef PNG_NO_PEDANTIC_WARNINGS |
| | 1366 | # ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED |
| | 1367 | # define PNG_PEDANTIC_WARNINGS_SUPPORTED |
| | 1368 | # endif |
| | 1369 | #endif |
| | 1370 | |
| | 1371 | #ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED |
| | 1372 | /* Support for compiler specific function attributes. These are used |
| | 1373 | * so that where compiler support is available incorrect use of API |
| | 1374 | * functions in png.h will generate compiler warnings. Added at libpng |
| | 1375 | * version 1.2.41. |
| | 1376 | */ |
| | 1377 | # ifdef __GNUC__ |
| | 1378 | # ifndef PNG_USE_RESULT |
| | 1379 | # define PNG_USE_RESULT __attribute__((__warn_unused_result__)) |
| | 1380 | # endif |
| | 1381 | # ifndef PNG_NORETURN |
| | 1382 | # define PNG_NORETURN __attribute__((__noreturn__)) |
| | 1383 | # endif |
| | 1384 | # ifndef PNG_ALLOCATED |
| | 1385 | # define PNG_ALLOCATED __attribute__((__malloc__)) |
| | 1386 | # endif |
| | 1387 | |
| | 1388 | /* This specifically protects structure members that should only be |
| | 1389 | * accessed from within the library, therefore should be empty during |
| | 1390 | * a library build. |
| | 1391 | */ |
| | 1392 | # ifndef PNG_DEPRECATED |
| | 1393 | # define PNG_DEPRECATED __attribute__((__deprecated__)) |
| | 1394 | # endif |
| | 1395 | # ifndef PNG_DEPSTRUCT |
| | 1396 | # define PNG_DEPSTRUCT __attribute__((__deprecated__)) |
| | 1397 | # endif |
| | 1398 | # ifndef PNG_PRIVATE |
| | 1399 | # if 0 /* Doesn't work so we use deprecated instead*/ |
| | 1400 | # define PNG_PRIVATE \ |
| | 1401 | __attribute__((warning("This function is not exported by libpng."))) |
| | 1402 | # else |
| | 1403 | # define PNG_PRIVATE \ |
| | 1404 | __attribute__((__deprecated__)) |
| | 1405 | # endif |
| | 1406 | # endif /* PNG_PRIVATE */ |
| | 1407 | # endif /* __GNUC__ */ |
| | 1408 | #endif /* PNG_PEDANTIC_WARNINGS */ |
| | 1409 | |
| | 1410 | #ifndef PNG_DEPRECATED |
| | 1411 | # define PNG_DEPRECATED /* Use of this function is deprecated */ |
| | 1412 | #endif |
| | 1413 | #ifndef PNG_USE_RESULT |
| | 1414 | # define PNG_USE_RESULT /* The result of this function must be checked */ |
| | 1415 | #endif |
| | 1416 | #ifndef PNG_NORETURN |
| | 1417 | # define PNG_NORETURN /* This function does not return */ |
| | 1418 | #endif |
| | 1419 | #ifndef PNG_ALLOCATED |
| | 1420 | # define PNG_ALLOCATED /* The result of the function is new memory */ |
| | 1421 | #endif |
| | 1422 | #ifndef PNG_DEPSTRUCT |
| | 1423 | # define PNG_DEPSTRUCT /* Access to this struct member is deprecated */ |
| | 1424 | #endif |
| | 1425 | #ifndef PNG_PRIVATE |
| | 1426 | # define PNG_PRIVATE /* This is a private libpng function */ |
| | 1427 | #endif |
| | 1428 | |
| | 1429 | /* Users may want to use these so they are not private. Any library |
| | 1430 | * functions that are passed far data must be model-independent. |
| | 1431 | */ |
| | 1432 | |
| | 1433 | /* memory model/platform independent fns */ |
| | 1434 | #ifndef PNG_ABORT |
| | 1435 | # if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) |
| | 1436 | # define PNG_ABORT() ExitProcess(0) |
| | 1437 | # else |
| | 1438 | # define PNG_ABORT() abort() |
| | 1439 | # endif |
| | 1440 | #endif |
| | 1441 | |
| | 1442 | #ifdef USE_FAR_KEYWORD |
| | 1443 | /* Use this to make far-to-near assignments */ |
| | 1444 | # define CHECK 1 |
| | 1445 | # define NOCHECK 0 |
| | 1446 | # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) |
| | 1447 | # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) |
| | 1448 | # define png_strcpy _fstrcpy |
| | 1449 | # define png_strncpy _fstrncpy /* Added to v 1.2.6 */ |
| | 1450 | # define png_strlen _fstrlen |
| | 1451 | # define png_memcmp _fmemcmp /* SJT: added */ |
| | 1452 | # define png_memcpy _fmemcpy |
| | 1453 | # define png_memset _fmemset |
| | 1454 | # define png_sprintf sprintf |
| | 1455 | #else |
| | 1456 | # if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) |
| | 1457 | # /* Favor Windows over C runtime fns */ |
| | 1458 | # define CVT_PTR(ptr) (ptr) |
| | 1459 | # define CVT_PTR_NOCHECK(ptr) (ptr) |
| | 1460 | # define png_strcpy lstrcpyA |
| | 1461 | # define png_strncpy lstrcpynA |
| | 1462 | # define png_strlen lstrlenA |
| | 1463 | # define png_memcmp memcmp |
| | 1464 | # define png_memcpy CopyMemory |
| | 1465 | # define png_memset memset |
| | 1466 | # define png_sprintf wsprintfA |
| | 1467 | # else |
| | 1468 | # define CVT_PTR(ptr) (ptr) |
| | 1469 | # define CVT_PTR_NOCHECK(ptr) (ptr) |
| | 1470 | # define png_strcpy strcpy |
| | 1471 | # define png_strncpy strncpy /* Added to v 1.2.6 */ |
| | 1472 | # define png_strlen strlen |
| | 1473 | # define png_memcmp memcmp /* SJT: added */ |
| | 1474 | # define png_memcpy memcpy |
| | 1475 | # define png_memset memset |
| | 1476 | # define png_sprintf sprintf |
| | 1477 | # endif |
| | 1478 | #endif |
| | 1479 | |
| | 1480 | #ifndef PNG_NO_SNPRINTF |
| | 1481 | # ifdef _MSC_VER |
| | 1482 | # define png_snprintf _snprintf /* Added to v 1.2.19 */ |
| | 1483 | # define png_snprintf2 _snprintf |
| | 1484 | # define png_snprintf6 _snprintf |
| | 1485 | # else |
| | 1486 | # define png_snprintf snprintf /* Added to v 1.2.19 */ |
| | 1487 | # define png_snprintf2 snprintf |
| | 1488 | # define png_snprintf6 snprintf |
| | 1489 | # endif |
| | 1490 | #else |
| | 1491 | /* You don't have or don't want to use snprintf(). Caution: Using |
| | 1492 | * sprintf instead of snprintf exposes your application to accidental |
| | 1493 | * or malevolent buffer overflows. If you don't have snprintf() |
| | 1494 | * as a general rule you should provide one (you can get one from |
| | 1495 | * Portable OpenSSH). |
| | 1496 | */ |
| | 1497 | # define png_snprintf(s1,n,fmt,x1) png_sprintf(s1,fmt,x1) |
| | 1498 | # define png_snprintf2(s1,n,fmt,x1,x2) png_sprintf(s1,fmt,x1,x2) |
| | 1499 | # define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ |
| | 1500 | png_sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) |
| | 1501 | #endif |
| | 1502 | |
| | 1503 | /* png_alloc_size_t is guaranteed to be no smaller than png_size_t, |
| | 1504 | * and no smaller than png_uint_32. Casts from png_size_t or png_uint_32 |
| | 1505 | * to png_alloc_size_t are not necessary; in fact, it is recommended |
| | 1506 | * not to use them at all so that the compiler can complain when something |
| | 1507 | * turns out to be problematic. |
| | 1508 | * Casts in the other direction (from png_alloc_size_t to png_size_t or |
| | 1509 | * png_uint_32) should be explicitly applied; however, we do not expect |
| | 1510 | * to encounter practical situations that require such conversions. |
| | 1511 | */ |
| | 1512 | #if defined(__TURBOC__) && !defined(__FLAT__) |
| | 1513 | typedef unsigned long png_alloc_size_t; |
| | 1514 | #else |
| | 1515 | # if defined(_MSC_VER) && defined(MAXSEG_64K) |
| | 1516 | typedef unsigned long png_alloc_size_t; |
| | 1517 | # else |
| | 1518 | /* This is an attempt to detect an old Windows system where (int) is |
| | 1519 | * actually 16 bits, in that case png_malloc must have an argument with a |
| | 1520 | * bigger size to accomodate the requirements of the library. |
| | 1521 | */ |
| | 1522 | # if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) && \ |
| | 1523 | (!defined(INT_MAX) || INT_MAX <= 0x7ffffffeL) |
| | 1524 | typedef DWORD png_alloc_size_t; |
| | 1525 | # else |
| | 1526 | typedef png_size_t png_alloc_size_t; |
| | 1527 | # endif |
| | 1528 | # endif |
| | 1529 | #endif |
| | 1530 | /* End of memory model/platform independent support */ |
| | 1531 | |
| | 1532 | /* Just a little check that someone hasn't tried to define something |
| | 1533 | * contradictory. |
| | 1534 | */ |
| | 1535 | #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) |
| | 1536 | # undef PNG_ZBUF_SIZE |
| | 1537 | # define PNG_ZBUF_SIZE 65536L |
| | 1538 | #endif |
| | 1539 | |
| | 1540 | |
| | 1541 | /* Added at libpng-1.2.8 */ |
| | 1542 | #endif /* PNG_VERSION_INFO_ONLY */ |
| | 1543 | |
| | 1544 | #endif /* PNGCONF_H */ |
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