projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 0272a10d VZ |
1 | |
| 2 | /* pngconf.h - machine configurable file for libpng | |
| 3 | * | |
| 970f6abe | 4 | * libpng version 1.2.34 - December 18, 2008 |
| 0272a10d | 5 | * For conditions of distribution and use, see copyright notice in png.h |
| 970f6abe | 6 | * Copyright (c) 1998-2008 Glenn Randers-Pehrson |
| 0272a10d VZ |
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 | ||
| 11 | /* Any machine specific code is near the front of this file, so if you | |
| 12 | * are configuring libpng for a machine, you may want to read the section | |
| 13 | * starting here down to where it starts to typedef png_color, png_text, | |
| 14 | * and png_info. | |
| 15 | */ | |
| 16 | ||
| 17 | #ifndef PNGCONF_H | |
| 18 | #define PNGCONF_H | |
| 19 | ||
| 20 | #define PNG_1_2_X | |
| 21 | ||
| e0e742c3 CE |
22 | #ifdef __DMC__ |
| 23 | #define PNG_NO_SNPRINTF | |
| 24 | #endif | |
| 25 | ||
| 0272a10d VZ |
26 | /* |
| 27 | * PNG_USER_CONFIG has to be defined on the compiler command line. This | |
| 28 | * includes the resource compiler for Windows DLL configurations. | |
| 29 | */ | |
| 30 | #ifdef PNG_USER_CONFIG | |
| 31 | # ifndef PNG_USER_PRIVATEBUILD | |
| 32 | # define PNG_USER_PRIVATEBUILD | |
| 33 | # endif | |
| 34 | #include "pngusr.h" | |
| 35 | #endif | |
| 36 | ||
| 37 | /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */ | |
| 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 | * If you create a private DLL you need to define in "pngusr.h" the followings: | |
| 48 | * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of | |
| 49 | * the DLL was built> | |
| 50 | * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." | |
| 51 | * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to | |
| 52 | * distinguish your DLL from those of the official release. These | |
| 53 | * correspond to the trailing letters that come after the version | |
| 54 | * number and must match your private DLL name> | |
| 55 | * e.g. // private DLL "libpng13gx.dll" | |
| 56 | * #define PNG_USER_DLLFNAME_POSTFIX "gx" | |
| 57 | * | |
| 58 | * The following macros are also at your disposal if you want to complete the | |
| 59 | * DLL VERSIONINFO structure. | |
| 60 | * - PNG_USER_VERSIONINFO_COMMENTS | |
| 61 | * - PNG_USER_VERSIONINFO_COMPANYNAME | |
| 62 | * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS | |
| 63 | */ | |
| 64 | ||
| 65 | #ifdef __STDC__ | |
| 66 | #ifdef SPECIALBUILD | |
| 67 | # pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ | |
| 68 | are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") | |
| 69 | #endif | |
| 70 | ||
| 71 | #ifdef PRIVATEBUILD | |
| 72 | # pragma message("PRIVATEBUILD is deprecated.\ | |
| 73 | Use PNG_USER_PRIVATEBUILD instead.") | |
| 74 | # define PNG_USER_PRIVATEBUILD PRIVATEBUILD | |
| 75 | #endif | |
| 76 | #endif /* __STDC__ */ | |
| 77 | ||
| 78 | #ifndef PNG_VERSION_INFO_ONLY | |
| 79 | ||
| 80 | /* End of material added to libpng-1.2.8 */ | |
| 81 | ||
| 82 | /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble | |
| 970f6abe VZ |
83 | Restored at libpng-1.2.21 */ |
| 84 | #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \ | |
| 85 | !defined(PNG_WARN_UNINITIALIZED_ROW) | |
| 86 | # define PNG_WARN_UNINITIALIZED_ROW 1 | |
| 87 | #endif | |
| 88 | /* End of material added at libpng-1.2.19/1.2.21 */ | |
| 0272a10d VZ |
89 | |
| 90 | /* This is the size of the compression buffer, and thus the size of | |
| 91 | * an IDAT chunk. Make this whatever size you feel is best for your | |
| 92 | * machine. One of these will be allocated per png_struct. When this | |
| 93 | * is full, it writes the data to the disk, and does some other | |
| 94 | * calculations. Making this an extremely small size will slow | |
| 95 | * the library down, but you may want to experiment to determine | |
| 96 | * where it becomes significant, if you are concerned with memory | |
| 97 | * usage. Note that zlib allocates at least 32Kb also. For readers, | |
| 98 | * this describes the size of the buffer available to read the data in. | |
| 99 | * Unless this gets smaller than the size of a row (compressed), | |
| 100 | * it should not make much difference how big this is. | |
| 101 | */ | |
| 102 | ||
| 103 | #ifndef PNG_ZBUF_SIZE | |
| 104 | # define PNG_ZBUF_SIZE 8192 | |
| 105 | #endif | |
| 106 | ||
| 107 | /* Enable if you want a write-only libpng */ | |
| 108 | ||
| 109 | #ifndef PNG_NO_READ_SUPPORTED | |
| 110 | # define PNG_READ_SUPPORTED | |
| 111 | #endif | |
| 112 | ||
| 113 | /* Enable if you want a read-only libpng */ | |
| 114 | ||
| 115 | #ifndef PNG_NO_WRITE_SUPPORTED | |
| 116 | # define PNG_WRITE_SUPPORTED | |
| 117 | #endif | |
| 118 | ||
| 119 | /* Enabled by default in 1.2.0. You can disable this if you don't need to | |
| 120 | support PNGs that are embedded in MNG datastreams */ | |
| 121 | #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES) | |
| 122 | # ifndef PNG_MNG_FEATURES_SUPPORTED | |
| 123 | # define PNG_MNG_FEATURES_SUPPORTED | |
| 124 | # endif | |
| 125 | #endif | |
| 126 | ||
| 127 | #ifndef PNG_NO_FLOATING_POINT_SUPPORTED | |
| 128 | # ifndef PNG_FLOATING_POINT_SUPPORTED | |
| 129 | # define PNG_FLOATING_POINT_SUPPORTED | |
| 130 | # endif | |
| 131 | #endif | |
| 132 | ||
| 133 | /* If you are running on a machine where you cannot allocate more | |
| 134 | * than 64K of memory at once, uncomment this. While libpng will not | |
| 135 | * normally need that much memory in a chunk (unless you load up a very | |
| 136 | * large file), zlib needs to know how big of a chunk it can use, and | |
| 137 | * libpng thus makes sure to check any memory allocation to verify it | |
| 138 | * will fit into memory. | |
| 139 | #define PNG_MAX_MALLOC_64K | |
| 140 | */ | |
| 141 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) | |
| 142 | # define PNG_MAX_MALLOC_64K | |
| 143 | #endif | |
| 144 | ||
| 145 | /* Special munging to support doing things the 'cygwin' way: | |
| 146 | * 'Normal' png-on-win32 defines/defaults: | |
| 147 | * PNG_BUILD_DLL -- building dll | |
| 148 | * PNG_USE_DLL -- building an application, linking to dll | |
| 149 | * (no define) -- building static library, or building an | |
| 150 | * application and linking to the static lib | |
| 151 | * 'Cygwin' defines/defaults: | |
| 152 | * PNG_BUILD_DLL -- (ignored) building the dll | |
| 153 | * (no define) -- (ignored) building an application, linking to the dll | |
| 154 | * PNG_STATIC -- (ignored) building the static lib, or building an | |
| 155 | * application that links to the static lib. | |
| 156 | * ALL_STATIC -- (ignored) building various static libs, or building an | |
| 157 | * application that links to the static libs. | |
| 158 | * Thus, | |
| 159 | * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and | |
| 160 | * this bit of #ifdefs will define the 'correct' config variables based on | |
| 161 | * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but | |
| 162 | * unnecessary. | |
| 163 | * | |
| 164 | * Also, the precedence order is: | |
| 165 | * ALL_STATIC (since we can't #undef something outside our namespace) | |
| 166 | * PNG_BUILD_DLL | |
| 167 | * PNG_STATIC | |
| 168 | * (nothing) == PNG_USE_DLL | |
| 169 | * | |
| 170 | * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent | |
| 171 | * of auto-import in binutils, we no longer need to worry about | |
| 172 | * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, | |
| 173 | * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes | |
| 174 | * to __declspec() stuff. However, we DO need to worry about | |
| 175 | * PNG_BUILD_DLL and PNG_STATIC because those change some defaults | |
| 176 | * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. | |
| 177 | */ | |
| 178 | #if defined(__CYGWIN__) | |
| 179 | # if defined(ALL_STATIC) | |
| 180 | # if defined(PNG_BUILD_DLL) | |
| 181 | # undef PNG_BUILD_DLL | |
| 182 | # endif | |
| 183 | # if defined(PNG_USE_DLL) | |
| 184 | # undef PNG_USE_DLL | |
| 185 | # endif | |
| 186 | # if defined(PNG_DLL) | |
| 187 | # undef PNG_DLL | |
| 188 | # endif | |
| 189 | # if !defined(PNG_STATIC) | |
| 190 | # define PNG_STATIC | |
| 191 | # endif | |
| 192 | # else | |
| 193 | # if defined (PNG_BUILD_DLL) | |
| 194 | # if defined(PNG_STATIC) | |
| 195 | # undef PNG_STATIC | |
| 196 | # endif | |
| 197 | # if defined(PNG_USE_DLL) | |
| 198 | # undef PNG_USE_DLL | |
| 199 | # endif | |
| 200 | # if !defined(PNG_DLL) | |
| 201 | # define PNG_DLL | |
| 202 | # endif | |
| 203 | # else | |
| 204 | # if defined(PNG_STATIC) | |
| 205 | # if defined(PNG_USE_DLL) | |
| 206 | # undef PNG_USE_DLL | |
| 207 | # endif | |
| 208 | # if defined(PNG_DLL) | |
| 209 | # undef PNG_DLL | |
| 210 | # endif | |
| 211 | # else | |
| 212 | # if !defined(PNG_USE_DLL) | |
| 213 | # define PNG_USE_DLL | |
| 214 | # endif | |
| 215 | # if !defined(PNG_DLL) | |
| 216 | # define PNG_DLL | |
| 217 | # endif | |
| 218 | # endif | |
| 219 | # endif | |
| 220 | # endif | |
| 221 | #endif | |
| 222 | ||
| 223 | /* This protects us against compilers that run on a windowing system | |
| 224 | * and thus don't have or would rather us not use the stdio types: | |
| 225 | * stdin, stdout, and stderr. The only one currently used is stderr | |
| 226 | * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will | |
| 227 | * prevent these from being compiled and used. #defining PNG_NO_STDIO | |
| 228 | * will also prevent these, plus will prevent the entire set of stdio | |
| 229 | * macros and functions (FILE *, printf, etc.) from being compiled and used, | |
| 230 | * unless (PNG_DEBUG > 0) has been #defined. | |
| 231 | * | |
| 232 | * #define PNG_NO_CONSOLE_IO | |
| 233 | * #define PNG_NO_STDIO | |
| 234 | */ | |
| 235 | ||
| 236 | #if defined(_WIN32_WCE) | |
| 237 | # include <windows.h> | |
| 238 | /* Console I/O functions are not supported on WindowsCE */ | |
| 239 | # define PNG_NO_CONSOLE_IO | |
| 240 | # ifdef PNG_DEBUG | |
| 241 | # undef PNG_DEBUG | |
| 242 | # endif | |
| 243 | #endif | |
| 244 | ||
| 245 | #ifdef PNG_BUILD_DLL | |
| 246 | # ifndef PNG_CONSOLE_IO_SUPPORTED | |
| 247 | # ifndef PNG_NO_CONSOLE_IO | |
| 248 | # define PNG_NO_CONSOLE_IO | |
| 249 | # endif | |
| 250 | # endif | |
| 251 | #endif | |
| 252 | ||
| 253 | # ifdef PNG_NO_STDIO | |
| 254 | # ifndef PNG_NO_CONSOLE_IO | |
| 255 | # define PNG_NO_CONSOLE_IO | |
| 256 | # endif | |
| 257 | # ifdef PNG_DEBUG | |
| 258 | # if (PNG_DEBUG > 0) | |
| 259 | # include <stdio.h> | |
| 260 | # endif | |
| 261 | # endif | |
| 262 | # else | |
| 263 | # if !defined(_WIN32_WCE) | |
| 264 | /* "stdio.h" functions are not supported on WindowsCE */ | |
| 265 | # include <stdio.h> | |
| 266 | # endif | |
| 267 | # endif | |
| 268 | ||
| 269 | /* This macro protects us against machines that don't have function | |
| 270 | * prototypes (ie K&R style headers). If your compiler does not handle | |
| 271 | * function prototypes, define this macro and use the included ansi2knr. | |
| 272 | * I've always been able to use _NO_PROTO as the indicator, but you may | |
| 273 | * need to drag the empty declaration out in front of here, or change the | |
| 274 | * ifdef to suit your own needs. | |
| 275 | */ | |
| 276 | #ifndef PNGARG | |
| 277 | ||
| 278 | #ifdef OF /* zlib prototype munger */ | |
| 279 | # define PNGARG(arglist) OF(arglist) | |
| 280 | #else | |
| 281 | ||
| 282 | #ifdef _NO_PROTO | |
| 283 | # define PNGARG(arglist) () | |
| 284 | # ifndef PNG_TYPECAST_NULL | |
| 285 | # define PNG_TYPECAST_NULL | |
| 286 | # endif | |
| 287 | #else | |
| 288 | # define PNGARG(arglist) arglist | |
| 289 | #endif /* _NO_PROTO */ | |
| 290 | ||
| 291 | ||
| 292 | #endif /* OF */ | |
| 293 | ||
| 294 | #endif /* PNGARG */ | |
| 295 | ||
| 296 | /* Try to determine if we are compiling on a Mac. Note that testing for | |
| 297 | * just __MWERKS__ is not good enough, because the Codewarrior is now used | |
| 298 | * on non-Mac platforms. | |
| 299 | */ | |
| 300 | #ifndef MACOS | |
| 301 | # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ | |
| 302 | defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) | |
| 303 | # define MACOS | |
| 304 | # endif | |
| 305 | #endif | |
| 306 | ||
| 307 | /* enough people need this for various reasons to include it here */ | |
| 308 | #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) | |
| 309 | # include <sys/types.h> | |
| 310 | #endif | |
| 311 | ||
| 312 | #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) | |
| 313 | # define PNG_SETJMP_SUPPORTED | |
| 314 | #endif | |
| 315 | ||
| 316 | #ifdef PNG_SETJMP_SUPPORTED | |
| 317 | /* This is an attempt to force a single setjmp behaviour on Linux. If | |
| 318 | * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. | |
| 319 | */ | |
| 320 | ||
| 321 | # ifdef __linux__ | |
| 322 | # ifdef _BSD_SOURCE | |
| 323 | # define PNG_SAVE_BSD_SOURCE | |
| 324 | # undef _BSD_SOURCE | |
| 325 | # endif | |
| 326 | # ifdef _SETJMP_H | |
| 327 | /* If you encounter a compiler error here, see the explanation | |
| 328 | * near the end of INSTALL. | |
| 329 | */ | |
| 970f6abe | 330 | __pngconf.h__ already includes setjmp.h; |
| 0272a10d VZ |
331 | __dont__ include it again.; |
| 332 | # endif | |
| 333 | # endif /* __linux__ */ | |
| 334 | ||
| 335 | /* include setjmp.h for error handling */ | |
| 336 | # include <setjmp.h> | |
| 337 | ||
| 338 | # ifdef __linux__ | |
| 339 | # ifdef PNG_SAVE_BSD_SOURCE | |
| 970f6abe VZ |
340 | # ifndef _BSD_SOURCE |
| 341 | # define _BSD_SOURCE | |
| 342 | # endif | |
| 0272a10d VZ |
343 | # undef PNG_SAVE_BSD_SOURCE |
| 344 | # endif | |
| 345 | # endif /* __linux__ */ | |
| 346 | #endif /* PNG_SETJMP_SUPPORTED */ | |
| 347 | ||
| 348 | #ifdef BSD | |
| 349 | # include <strings.h> | |
| 350 | #else | |
| 351 | # include <string.h> | |
| 352 | #endif | |
| 353 | ||
| 354 | /* Other defines for things like memory and the like can go here. */ | |
| 355 | #ifdef PNG_INTERNAL | |
| 356 | ||
| 357 | #include <stdlib.h> | |
| 358 | ||
| 359 | /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which | |
| 360 | * aren't usually used outside the library (as far as I know), so it is | |
| 361 | * debatable if they should be exported at all. In the future, when it is | |
| 362 | * possible to have run-time registry of chunk-handling functions, some of | |
| 363 | * these will be made available again. | |
| 364 | #define PNG_EXTERN extern | |
| 365 | */ | |
| 366 | #define PNG_EXTERN | |
| 367 | ||
| 368 | /* Other defines specific to compilers can go here. Try to keep | |
| 369 | * them inside an appropriate ifdef/endif pair for portability. | |
| 370 | */ | |
| 371 | ||
| 372 | #if defined(PNG_FLOATING_POINT_SUPPORTED) | |
| 111ba6b8 | 373 | # if defined(MACOS) && !wxOSX_USE_IPHONE |
| 0272a10d VZ |
374 | /* We need to check that <math.h> hasn't already been included earlier |
| 375 | * as it seems it doesn't agree with <fp.h>, yet we should really use | |
| 376 | * <fp.h> if possible. | |
| 377 | */ | |
| 378 | # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) | |
| 379 | # include <fp.h> | |
| 380 | # endif | |
| 381 | # else | |
| 382 | # include <math.h> | |
| 383 | # endif | |
| 384 | # if defined(_AMIGA) && defined(__SASC) && defined(_M68881) | |
| 385 | /* Amiga SAS/C: We must include builtin FPU functions when compiling using | |
| 386 | * MATH=68881 | |
| 387 | */ | |
| 388 | # include <m68881.h> | |
| 389 | # endif | |
| 390 | #endif | |
| 391 | ||
| 392 | /* Codewarrior on NT has linking problems without this. */ | |
| 393 | #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) | |
| 394 | # define PNG_ALWAYS_EXTERN | |
| 395 | #endif | |
| 396 | ||
| 397 | /* This provides the non-ANSI (far) memory allocation routines. */ | |
| 398 | #if defined(__TURBOC__) && defined(__MSDOS__) | |
| 399 | # include <mem.h> | |
| 400 | # include <alloc.h> | |
| 401 | #endif | |
| 402 | ||
| 403 | /* I have no idea why is this necessary... */ | |
| 404 | #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ | |
| 405 | defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) | |
| 406 | # include <malloc.h> | |
| 407 | #endif | |
| 408 | ||
| 409 | /* This controls how fine the dithering gets. As this allocates | |
| 410 | * a largish chunk of memory (32K), those who are not as concerned | |
| 411 | * with dithering quality can decrease some or all of these. | |
| 412 | */ | |
| 413 | #ifndef PNG_DITHER_RED_BITS | |
| 414 | # define PNG_DITHER_RED_BITS 5 | |
| 415 | #endif | |
| 416 | #ifndef PNG_DITHER_GREEN_BITS | |
| 417 | # define PNG_DITHER_GREEN_BITS 5 | |
| 418 | #endif | |
| 419 | #ifndef PNG_DITHER_BLUE_BITS | |
| 420 | # define PNG_DITHER_BLUE_BITS 5 | |
| 421 | #endif | |
| 422 | ||
| 423 | /* This controls how fine the gamma correction becomes when you | |
| 424 | * are only interested in 8 bits anyway. Increasing this value | |
| 425 | * results in more memory being used, and more pow() functions | |
| 426 | * being called to fill in the gamma tables. Don't set this value | |
| 427 | * less then 8, and even that may not work (I haven't tested it). | |
| 428 | */ | |
| 429 | ||
| 430 | #ifndef PNG_MAX_GAMMA_8 | |
| 431 | # define PNG_MAX_GAMMA_8 11 | |
| 432 | #endif | |
| 433 | ||
| 434 | /* This controls how much a difference in gamma we can tolerate before | |
| 435 | * we actually start doing gamma conversion. | |
| 436 | */ | |
| 437 | #ifndef PNG_GAMMA_THRESHOLD | |
| 438 | # define PNG_GAMMA_THRESHOLD 0.05 | |
| 439 | #endif | |
| 440 | ||
| 441 | #endif /* PNG_INTERNAL */ | |
| 442 | ||
| 443 | /* The following uses const char * instead of char * for error | |
| 444 | * and warning message functions, so some compilers won't complain. | |
| 445 | * If you do not want to use const, define PNG_NO_CONST here. | |
| 446 | */ | |
| 447 | ||
| 448 | #ifndef PNG_NO_CONST | |
| 449 | # define PNG_CONST const | |
| 450 | #else | |
| 451 | # define PNG_CONST | |
| 452 | #endif | |
| 453 | ||
| 454 | /* The following defines give you the ability to remove code from the | |
| 455 | * library that you will not be using. I wish I could figure out how to | |
| 456 | * automate this, but I can't do that without making it seriously hard | |
| 457 | * on the users. So if you are not using an ability, change the #define | |
| 458 | * to and #undef, and that part of the library will not be compiled. If | |
| 459 | * your linker can't find a function, you may want to make sure the | |
| 460 | * ability is defined here. Some of these depend upon some others being | |
| 461 | * defined. I haven't figured out all the interactions here, so you may | |
| 462 | * have to experiment awhile to get everything to compile. If you are | |
| 463 | * creating or using a shared library, you probably shouldn't touch this, | |
| 464 | * as it will affect the size of the structures, and this will cause bad | |
| 465 | * things to happen if the library and/or application ever change. | |
| 466 | */ | |
| 467 | ||
| 468 | /* Any features you will not be using can be undef'ed here */ | |
| 469 | ||
| 470 | /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user | |
| 471 | * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS | |
| 472 | * on the compile line, then pick and choose which ones to define without | |
| 473 | * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED | |
| 474 | * if you only want to have a png-compliant reader/writer but don't need | |
| 475 | * any of the extra transformations. This saves about 80 kbytes in a | |
| 476 | * typical installation of the library. (PNG_NO_* form added in version | |
| 477 | * 1.0.1c, for consistency) | |
| 478 | */ | |
| 479 | ||
| 480 | /* The size of the png_text structure changed in libpng-1.0.6 when | |
| 481 | * iTXt support was added. iTXt support was turned off by default through | |
| 482 | * libpng-1.2.x, to support old apps that malloc the png_text structure | |
| 483 | * instead of calling png_set_text() and letting libpng malloc it. It | |
| 484 | * was turned on by default in libpng-1.3.0. | |
| 485 | */ | |
| 486 | ||
| 487 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) | |
| 488 | # ifndef PNG_NO_iTXt_SUPPORTED | |
| 489 | # define PNG_NO_iTXt_SUPPORTED | |
| 490 | # endif | |
| 491 | # ifndef PNG_NO_READ_iTXt | |
| 492 | # define PNG_NO_READ_iTXt | |
| 493 | # endif | |
| 494 | # ifndef PNG_NO_WRITE_iTXt | |
| 495 | # define PNG_NO_WRITE_iTXt | |
| 496 | # endif | |
| 497 | #endif | |
| 498 | ||
| 499 | #if !defined(PNG_NO_iTXt_SUPPORTED) | |
| 500 | # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) | |
| 501 | # define PNG_READ_iTXt | |
| 502 | # endif | |
| 503 | # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) | |
| 504 | # define PNG_WRITE_iTXt | |
| 505 | # endif | |
| 506 | #endif | |
| 507 | ||
| 508 | /* The following support, added after version 1.0.0, can be turned off here en | |
| 509 | * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility | |
| 510 | * with old applications that require the length of png_struct and png_info | |
| 511 | * to remain unchanged. | |
| 512 | */ | |
| 513 | ||
| 514 | #ifdef PNG_LEGACY_SUPPORTED | |
| 515 | # define PNG_NO_FREE_ME | |
| 516 | # define PNG_NO_READ_UNKNOWN_CHUNKS | |
| 517 | # define PNG_NO_WRITE_UNKNOWN_CHUNKS | |
| 518 | # define PNG_NO_READ_USER_CHUNKS | |
| 519 | # define PNG_NO_READ_iCCP | |
| 520 | # define PNG_NO_WRITE_iCCP | |
| 521 | # define PNG_NO_READ_iTXt | |
| 522 | # define PNG_NO_WRITE_iTXt | |
| 523 | # define PNG_NO_READ_sCAL | |
| 524 | # define PNG_NO_WRITE_sCAL | |
| 525 | # define PNG_NO_READ_sPLT | |
| 526 | # define PNG_NO_WRITE_sPLT | |
| 527 | # define PNG_NO_INFO_IMAGE | |
| 528 | # define PNG_NO_READ_RGB_TO_GRAY | |
| 529 | # define PNG_NO_READ_USER_TRANSFORM | |
| 530 | # define PNG_NO_WRITE_USER_TRANSFORM | |
| 531 | # define PNG_NO_USER_MEM | |
| 532 | # define PNG_NO_READ_EMPTY_PLTE | |
| 533 | # define PNG_NO_MNG_FEATURES | |
| 534 | # define PNG_NO_FIXED_POINT_SUPPORTED | |
| 535 | #endif | |
| 536 | ||
| 537 | /* Ignore attempt to turn off both floating and fixed point support */ | |
| 538 | #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ | |
| 539 | !defined(PNG_NO_FIXED_POINT_SUPPORTED) | |
| 540 | # define PNG_FIXED_POINT_SUPPORTED | |
| 541 | #endif | |
| 542 | ||
| 543 | #ifndef PNG_NO_FREE_ME | |
| 544 | # define PNG_FREE_ME_SUPPORTED | |
| 545 | #endif | |
| 546 | ||
| 547 | #if defined(PNG_READ_SUPPORTED) | |
| 548 | ||
| 549 | #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ | |
| 550 | !defined(PNG_NO_READ_TRANSFORMS) | |
| 551 | # define PNG_READ_TRANSFORMS_SUPPORTED | |
| 552 | #endif | |
| 553 | ||
| 554 | #ifdef PNG_READ_TRANSFORMS_SUPPORTED | |
| 555 | # ifndef PNG_NO_READ_EXPAND | |
| 556 | # define PNG_READ_EXPAND_SUPPORTED | |
| 557 | # endif | |
| 558 | # ifndef PNG_NO_READ_SHIFT | |
| 559 | # define PNG_READ_SHIFT_SUPPORTED | |
| 560 | # endif | |
| 561 | # ifndef PNG_NO_READ_PACK | |
| 562 | # define PNG_READ_PACK_SUPPORTED | |
| 563 | # endif | |
| 564 | # ifndef PNG_NO_READ_BGR | |
| 565 | # define PNG_READ_BGR_SUPPORTED | |
| 566 | # endif | |
| 567 | # ifndef PNG_NO_READ_SWAP | |
| 568 | # define PNG_READ_SWAP_SUPPORTED | |
| 569 | # endif | |
| 570 | # ifndef PNG_NO_READ_PACKSWAP | |
| 571 | # define PNG_READ_PACKSWAP_SUPPORTED | |
| 572 | # endif | |
| 573 | # ifndef PNG_NO_READ_INVERT | |
| 574 | # define PNG_READ_INVERT_SUPPORTED | |
| 575 | # endif | |
| 576 | # ifndef PNG_NO_READ_DITHER | |
| 577 | # define PNG_READ_DITHER_SUPPORTED | |
| 578 | # endif | |
| 579 | # ifndef PNG_NO_READ_BACKGROUND | |
| 580 | # define PNG_READ_BACKGROUND_SUPPORTED | |
| 581 | # endif | |
| 582 | # ifndef PNG_NO_READ_16_TO_8 | |
| 583 | # define PNG_READ_16_TO_8_SUPPORTED | |
| 584 | # endif | |
| 585 | # ifndef PNG_NO_READ_FILLER | |
| 586 | # define PNG_READ_FILLER_SUPPORTED | |
| 587 | # endif | |
| 588 | # ifndef PNG_NO_READ_GAMMA | |
| 589 | # define PNG_READ_GAMMA_SUPPORTED | |
| 590 | # endif | |
| 591 | # ifndef PNG_NO_READ_GRAY_TO_RGB | |
| 592 | # define PNG_READ_GRAY_TO_RGB_SUPPORTED | |
| 593 | # endif | |
| 594 | # ifndef PNG_NO_READ_SWAP_ALPHA | |
| 595 | # define PNG_READ_SWAP_ALPHA_SUPPORTED | |
| 596 | # endif | |
| 597 | # ifndef PNG_NO_READ_INVERT_ALPHA | |
| 598 | # define PNG_READ_INVERT_ALPHA_SUPPORTED | |
| 599 | # endif | |
| 600 | # ifndef PNG_NO_READ_STRIP_ALPHA | |
| 601 | # define PNG_READ_STRIP_ALPHA_SUPPORTED | |
| 602 | # endif | |
| 603 | # ifndef PNG_NO_READ_USER_TRANSFORM | |
| 604 | # define PNG_READ_USER_TRANSFORM_SUPPORTED | |
| 605 | # endif | |
| 606 | # ifndef PNG_NO_READ_RGB_TO_GRAY | |
| 607 | # define PNG_READ_RGB_TO_GRAY_SUPPORTED | |
| 608 | # endif | |
| 609 | #endif /* PNG_READ_TRANSFORMS_SUPPORTED */ | |
| 610 | ||
| 611 | #if !defined(PNG_NO_PROGRESSIVE_READ) && \ | |
| 612 | !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */ | |
| 613 | # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ | |
| 614 | #endif /* about interlacing capability! You'll */ | |
| 615 | /* still have interlacing unless you change the following line: */ | |
| 616 | ||
| 617 | #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */ | |
| 618 | ||
| 619 | #ifndef PNG_NO_READ_COMPOSITE_NODIV | |
| 620 | # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ | |
| 621 | # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ | |
| 622 | # endif | |
| 623 | #endif | |
| 624 | ||
| 625 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) | |
| 626 | /* Deprecated, will be removed from version 2.0.0. | |
| 627 | Use PNG_MNG_FEATURES_SUPPORTED instead. */ | |
| 628 | #ifndef PNG_NO_READ_EMPTY_PLTE | |
| 629 | # define PNG_READ_EMPTY_PLTE_SUPPORTED | |
| 630 | #endif | |
| 631 | #endif | |
| 632 | ||
| 633 | #endif /* PNG_READ_SUPPORTED */ | |
| 634 | ||
| 635 | #if defined(PNG_WRITE_SUPPORTED) | |
| 636 | ||
| 637 | # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ | |
| 638 | !defined(PNG_NO_WRITE_TRANSFORMS) | |
| 639 | # define PNG_WRITE_TRANSFORMS_SUPPORTED | |
| 640 | #endif | |
| 641 | ||
| 642 | #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED | |
| 643 | # ifndef PNG_NO_WRITE_SHIFT | |
| 644 | # define PNG_WRITE_SHIFT_SUPPORTED | |
| 645 | # endif | |
| 646 | # ifndef PNG_NO_WRITE_PACK | |
| 647 | # define PNG_WRITE_PACK_SUPPORTED | |
| 648 | # endif | |
| 649 | # ifndef PNG_NO_WRITE_BGR | |
| 650 | # define PNG_WRITE_BGR_SUPPORTED | |
| 651 | # endif | |
| 652 | # ifndef PNG_NO_WRITE_SWAP | |
| 653 | # define PNG_WRITE_SWAP_SUPPORTED | |
| 654 | # endif | |
| 655 | # ifndef PNG_NO_WRITE_PACKSWAP | |
| 656 | # define PNG_WRITE_PACKSWAP_SUPPORTED | |
| 657 | # endif | |
| 658 | # ifndef PNG_NO_WRITE_INVERT | |
| 659 | # define PNG_WRITE_INVERT_SUPPORTED | |
| 660 | # endif | |
| 661 | # ifndef PNG_NO_WRITE_FILLER | |
| 662 | # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ | |
| 663 | # endif | |
| 664 | # ifndef PNG_NO_WRITE_SWAP_ALPHA | |
| 665 | # define PNG_WRITE_SWAP_ALPHA_SUPPORTED | |
| 666 | # endif | |
| 667 | # ifndef PNG_NO_WRITE_INVERT_ALPHA | |
| 668 | # define PNG_WRITE_INVERT_ALPHA_SUPPORTED | |
| 669 | # endif | |
| 670 | # ifndef PNG_NO_WRITE_USER_TRANSFORM | |
| 671 | # define PNG_WRITE_USER_TRANSFORM_SUPPORTED | |
| 672 | # endif | |
| 673 | #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ | |
| 674 | ||
| 675 | #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ | |
| 676 | !defined(PNG_WRITE_INTERLACING_SUPPORTED) | |
| 677 | #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant | |
| 678 | encoders, but can cause trouble | |
| 679 | if left undefined */ | |
| 680 | #endif | |
| 681 | ||
| 682 | #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ | |
| 683 | !defined(PNG_WRITE_WEIGHTED_FILTER) && \ | |
| 684 | defined(PNG_FLOATING_POINT_SUPPORTED) | |
| 685 | # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED | |
| 686 | #endif | |
| 687 | ||
| 688 | #ifndef PNG_NO_WRITE_FLUSH | |
| 689 | # define PNG_WRITE_FLUSH_SUPPORTED | |
| 690 | #endif | |
| 691 | ||
| 692 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) | |
| 693 | /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ | |
| 694 | #ifndef PNG_NO_WRITE_EMPTY_PLTE | |
| 695 | # define PNG_WRITE_EMPTY_PLTE_SUPPORTED | |
| 696 | #endif | |
| 697 | #endif | |
| 698 | ||
| 699 | #endif /* PNG_WRITE_SUPPORTED */ | |
| 700 | ||
| 701 | #ifndef PNG_1_0_X | |
| 702 | # ifndef PNG_NO_ERROR_NUMBERS | |
| 703 | # define PNG_ERROR_NUMBERS_SUPPORTED | |
| 704 | # endif | |
| 705 | #endif /* PNG_1_0_X */ | |
| 706 | ||
| 707 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ | |
| 708 | defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) | |
| 709 | # ifndef PNG_NO_USER_TRANSFORM_PTR | |
| 710 | # define PNG_USER_TRANSFORM_PTR_SUPPORTED | |
| 711 | # endif | |
| 712 | #endif | |
| 713 | ||
| 714 | #ifndef PNG_NO_STDIO | |
| 715 | # define PNG_TIME_RFC1123_SUPPORTED | |
| 716 | #endif | |
| 717 | ||
| 718 | /* This adds extra functions in pngget.c for accessing data from the | |
| 719 | * info pointer (added in version 0.99) | |
| 720 | * png_get_image_width() | |
| 721 | * png_get_image_height() | |
| 722 | * png_get_bit_depth() | |
| 723 | * png_get_color_type() | |
| 724 | * png_get_compression_type() | |
| 725 | * png_get_filter_type() | |
| 726 | * png_get_interlace_type() | |
| 727 | * png_get_pixel_aspect_ratio() | |
| 728 | * png_get_pixels_per_meter() | |
| 729 | * png_get_x_offset_pixels() | |
| 730 | * png_get_y_offset_pixels() | |
| 731 | * png_get_x_offset_microns() | |
| 732 | * png_get_y_offset_microns() | |
| 733 | */ | |
| 734 | #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) | |
| 735 | # define PNG_EASY_ACCESS_SUPPORTED | |
| 736 | #endif | |
| 737 | ||
| 738 | /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 | |
| 739 | * and removed from version 1.2.20. The following will be removed | |
| 740 | * from libpng-1.4.0 | |
| 741 | */ | |
| 742 | ||
| 743 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE) | |
| 744 | # ifndef PNG_OPTIMIZED_CODE_SUPPORTED | |
| 745 | # define PNG_OPTIMIZED_CODE_SUPPORTED | |
| 746 | # endif | |
| 747 | #endif | |
| 748 | ||
| 749 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) | |
| 750 | # ifndef PNG_ASSEMBLER_CODE_SUPPORTED | |
| 751 | # define PNG_ASSEMBLER_CODE_SUPPORTED | |
| 752 | # endif | |
| 753 | ||
| 754 | # if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4) | |
| 755 | /* work around 64-bit gcc compiler bugs in gcc-3.x */ | |
| 756 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) | |
| 757 | # define PNG_NO_MMX_CODE | |
| 758 | # endif | |
| 759 | # endif | |
| 760 | ||
| 761 | # if defined(__APPLE__) | |
| 762 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) | |
| 763 | # define PNG_NO_MMX_CODE | |
| 764 | # endif | |
| 765 | # endif | |
| 766 | ||
| 767 | # if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh)) | |
| 768 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) | |
| 769 | # define PNG_NO_MMX_CODE | |
| 770 | # endif | |
| 771 | # endif | |
| 772 | ||
| 773 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) | |
| 774 | # define PNG_MMX_CODE_SUPPORTED | |
| 775 | # endif | |
| 776 | ||
| 777 | #endif | |
| 778 | /* end of obsolete code to be removed from libpng-1.4.0 */ | |
| 779 | ||
| 780 | #if !defined(PNG_1_0_X) | |
| 781 | #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) | |
| 782 | # define PNG_USER_MEM_SUPPORTED | |
| 783 | #endif | |
| 784 | #endif /* PNG_1_0_X */ | |
| 785 | ||
| 786 | /* Added at libpng-1.2.6 */ | |
| 787 | #if !defined(PNG_1_0_X) | |
| 788 | #ifndef PNG_SET_USER_LIMITS_SUPPORTED | |
| 789 | #if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED) | |
| 790 | # define PNG_SET_USER_LIMITS_SUPPORTED | |
| 791 | #endif | |
| 792 | #endif | |
| 793 | #endif /* PNG_1_0_X */ | |
| 794 | ||
| 795 | /* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter | |
| 796 | * how large, set these limits to 0x7fffffffL | |
| 797 | */ | |
| 798 | #ifndef PNG_USER_WIDTH_MAX | |
| 799 | # define PNG_USER_WIDTH_MAX 1000000L | |
| 800 | #endif | |
| 801 | #ifndef PNG_USER_HEIGHT_MAX | |
| 802 | # define PNG_USER_HEIGHT_MAX 1000000L | |
| 803 | #endif | |
| 804 | ||
| 970f6abe VZ |
805 | |
| 806 | /* Added at libpng-1.2.34 and 1.4.0 */ | |
| 807 | #ifndef PNG_STRING_NEWLINE | |
| 808 | #define PNG_STRING_NEWLINE "\n" | |
| 809 | #endif | |
| 810 | ||
| 0272a10d VZ |
811 | /* These are currently experimental features, define them if you want */ |
| 812 | ||
| 813 | /* very little testing */ | |
| 814 | /* | |
| 815 | #ifdef PNG_READ_SUPPORTED | |
| 816 | # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED | |
| 817 | # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED | |
| 818 | # endif | |
| 819 | #endif | |
| 820 | */ | |
| 821 | ||
| 822 | /* This is only for PowerPC big-endian and 680x0 systems */ | |
| 823 | /* some testing */ | |
| 824 | /* | |
| 825 | #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED | |
| 826 | # define PNG_READ_BIG_ENDIAN_SUPPORTED | |
| 827 | #endif | |
| 828 | */ | |
| 829 | ||
| 830 | /* Buggy compilers (e.g., gcc 2.7.2.2) need this */ | |
| 831 | /* | |
| 832 | #define PNG_NO_POINTER_INDEXING | |
| 833 | */ | |
| 834 | ||
| 835 | /* These functions are turned off by default, as they will be phased out. */ | |
| 836 | /* | |
| 837 | #define PNG_USELESS_TESTS_SUPPORTED | |
| 838 | #define PNG_CORRECT_PALETTE_SUPPORTED | |
| 839 | */ | |
| 840 | ||
| 841 | /* Any chunks you are not interested in, you can undef here. The | |
| 842 | * ones that allocate memory may be expecially important (hIST, | |
| 843 | * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info | |
| 844 | * a bit smaller. | |
| 845 | */ | |
| 846 | ||
| 847 | #if defined(PNG_READ_SUPPORTED) && \ | |
| 848 | !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ | |
| 849 | !defined(PNG_NO_READ_ANCILLARY_CHUNKS) | |
| 850 | # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED | |
| 851 | #endif | |
| 852 | ||
| 853 | #if defined(PNG_WRITE_SUPPORTED) && \ | |
| 854 | !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ | |
| 855 | !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) | |
| 856 | # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED | |
| 857 | #endif | |
| 858 | ||
| 859 | #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED | |
| 860 | ||
| 861 | #ifdef PNG_NO_READ_TEXT | |
| 862 | # define PNG_NO_READ_iTXt | |
| 863 | # define PNG_NO_READ_tEXt | |
| 864 | # define PNG_NO_READ_zTXt | |
| 865 | #endif | |
| 866 | #ifndef PNG_NO_READ_bKGD | |
| 867 | # define PNG_READ_bKGD_SUPPORTED | |
| 868 | # define PNG_bKGD_SUPPORTED | |
| 869 | #endif | |
| 870 | #ifndef PNG_NO_READ_cHRM | |
| 871 | # define PNG_READ_cHRM_SUPPORTED | |
| 872 | # define PNG_cHRM_SUPPORTED | |
| 873 | #endif | |
| 874 | #ifndef PNG_NO_READ_gAMA | |
| 875 | # define PNG_READ_gAMA_SUPPORTED | |
| 876 | # define PNG_gAMA_SUPPORTED | |
| 877 | #endif | |
| 878 | #ifndef PNG_NO_READ_hIST | |
| 879 | # define PNG_READ_hIST_SUPPORTED | |
| 880 | # define PNG_hIST_SUPPORTED | |
| 881 | #endif | |
| 882 | #ifndef PNG_NO_READ_iCCP | |
| 883 | # define PNG_READ_iCCP_SUPPORTED | |
| 884 | # define PNG_iCCP_SUPPORTED | |
| 885 | #endif | |
| 886 | #ifndef PNG_NO_READ_iTXt | |
| 887 | # ifndef PNG_READ_iTXt_SUPPORTED | |
| 888 | # define PNG_READ_iTXt_SUPPORTED | |
| 889 | # endif | |
| 890 | # ifndef PNG_iTXt_SUPPORTED | |
| 891 | # define PNG_iTXt_SUPPORTED | |
| 892 | # endif | |
| 893 | #endif | |
| 894 | #ifndef PNG_NO_READ_oFFs | |
| 895 | # define PNG_READ_oFFs_SUPPORTED | |
| 896 | # define PNG_oFFs_SUPPORTED | |
| 897 | #endif | |
| 898 | #ifndef PNG_NO_READ_pCAL | |
| 899 | # define PNG_READ_pCAL_SUPPORTED | |
| 900 | # define PNG_pCAL_SUPPORTED | |
| 901 | #endif | |
| 902 | #ifndef PNG_NO_READ_sCAL | |
| 903 | # define PNG_READ_sCAL_SUPPORTED | |
| 904 | # define PNG_sCAL_SUPPORTED | |
| 905 | #endif | |
| 906 | #ifndef PNG_NO_READ_pHYs | |
| 907 | # define PNG_READ_pHYs_SUPPORTED | |
| 908 | # define PNG_pHYs_SUPPORTED | |
| 909 | #endif | |
| 910 | #ifndef PNG_NO_READ_sBIT | |
| 911 | # define PNG_READ_sBIT_SUPPORTED | |
| 912 | # define PNG_sBIT_SUPPORTED | |
| 913 | #endif | |
| 914 | #ifndef PNG_NO_READ_sPLT | |
| 915 | # define PNG_READ_sPLT_SUPPORTED | |
| 916 | # define PNG_sPLT_SUPPORTED | |
| 917 | #endif | |
| 918 | #ifndef PNG_NO_READ_sRGB | |
| 919 | # define PNG_READ_sRGB_SUPPORTED | |
| 920 | # define PNG_sRGB_SUPPORTED | |
| 921 | #endif | |
| 922 | #ifndef PNG_NO_READ_tEXt | |
| 923 | # define PNG_READ_tEXt_SUPPORTED | |
| 924 | # define PNG_tEXt_SUPPORTED | |
| 925 | #endif | |
| 926 | #ifndef PNG_NO_READ_tIME | |
| 927 | # define PNG_READ_tIME_SUPPORTED | |
| 928 | # define PNG_tIME_SUPPORTED | |
| 929 | #endif | |
| 930 | #ifndef PNG_NO_READ_tRNS | |
| 931 | # define PNG_READ_tRNS_SUPPORTED | |
| 932 | # define PNG_tRNS_SUPPORTED | |
| 933 | #endif | |
| 934 | #ifndef PNG_NO_READ_zTXt | |
| 935 | # define PNG_READ_zTXt_SUPPORTED | |
| 936 | # define PNG_zTXt_SUPPORTED | |
| 937 | #endif | |
| 938 | #ifndef PNG_NO_READ_UNKNOWN_CHUNKS | |
| 939 | # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED | |
| 940 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED | |
| 941 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED | |
| 942 | # endif | |
| 943 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN | |
| 944 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED | |
| 945 | # endif | |
| 946 | #endif | |
| 947 | #if !defined(PNG_NO_READ_USER_CHUNKS) && \ | |
| 948 | defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) | |
| 949 | # define PNG_READ_USER_CHUNKS_SUPPORTED | |
| 950 | # define PNG_USER_CHUNKS_SUPPORTED | |
| 951 | # ifdef PNG_NO_READ_UNKNOWN_CHUNKS | |
| 952 | # undef PNG_NO_READ_UNKNOWN_CHUNKS | |
| 953 | # endif | |
| 954 | # ifdef PNG_NO_HANDLE_AS_UNKNOWN | |
| 955 | # undef PNG_NO_HANDLE_AS_UNKNOWN | |
| 956 | # endif | |
| 957 | #endif | |
| 958 | #ifndef PNG_NO_READ_OPT_PLTE | |
| 959 | # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ | |
| 960 | #endif /* optional PLTE chunk in RGB and RGBA images */ | |
| 961 | #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ | |
| 962 | defined(PNG_READ_zTXt_SUPPORTED) | |
| 963 | # define PNG_READ_TEXT_SUPPORTED | |
| 964 | # define PNG_TEXT_SUPPORTED | |
| 965 | #endif | |
| 966 | ||
| 967 | #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ | |
| 968 | ||
| 969 | #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED | |
| 970 | ||
| 971 | #ifdef PNG_NO_WRITE_TEXT | |
| 972 | # define PNG_NO_WRITE_iTXt | |
| 973 | # define PNG_NO_WRITE_tEXt | |
| 974 | # define PNG_NO_WRITE_zTXt | |
| 975 | #endif | |
| 976 | #ifndef PNG_NO_WRITE_bKGD | |
| 977 | # define PNG_WRITE_bKGD_SUPPORTED | |
| 978 | # ifndef PNG_bKGD_SUPPORTED | |
| 979 | # define PNG_bKGD_SUPPORTED | |
| 980 | # endif | |
| 981 | #endif | |
| 982 | #ifndef PNG_NO_WRITE_cHRM | |
| 983 | # define PNG_WRITE_cHRM_SUPPORTED | |
| 984 | # ifndef PNG_cHRM_SUPPORTED | |
| 985 | # define PNG_cHRM_SUPPORTED | |
| 986 | # endif | |
| 987 | #endif | |
| 988 | #ifndef PNG_NO_WRITE_gAMA | |
| 989 | # define PNG_WRITE_gAMA_SUPPORTED | |
| 990 | # ifndef PNG_gAMA_SUPPORTED | |
| 991 | # define PNG_gAMA_SUPPORTED | |
| 992 | # endif | |
| 993 | #endif | |
| 994 | #ifndef PNG_NO_WRITE_hIST | |
| 995 | # define PNG_WRITE_hIST_SUPPORTED | |
| 996 | # ifndef PNG_hIST_SUPPORTED | |
| 997 | # define PNG_hIST_SUPPORTED | |
| 998 | # endif | |
| 999 | #endif | |
| 1000 | #ifndef PNG_NO_WRITE_iCCP | |
| 1001 | # define PNG_WRITE_iCCP_SUPPORTED | |
| 1002 | # ifndef PNG_iCCP_SUPPORTED | |
| 1003 | # define PNG_iCCP_SUPPORTED | |
| 1004 | # endif | |
| 1005 | #endif | |
| 1006 | #ifndef PNG_NO_WRITE_iTXt | |
| 1007 | # ifndef PNG_WRITE_iTXt_SUPPORTED | |
| 1008 | # define PNG_WRITE_iTXt_SUPPORTED | |
| 1009 | # endif | |
| 1010 | # ifndef PNG_iTXt_SUPPORTED | |
| 1011 | # define PNG_iTXt_SUPPORTED | |
| 1012 | # endif | |
| 1013 | #endif | |
| 1014 | #ifndef PNG_NO_WRITE_oFFs | |
| 1015 | # define PNG_WRITE_oFFs_SUPPORTED | |
| 1016 | # ifndef PNG_oFFs_SUPPORTED | |
| 1017 | # define PNG_oFFs_SUPPORTED | |
| 1018 | # endif | |
| 1019 | #endif | |
| 1020 | #ifndef PNG_NO_WRITE_pCAL | |
| 1021 | # define PNG_WRITE_pCAL_SUPPORTED | |
| 1022 | # ifndef PNG_pCAL_SUPPORTED | |
| 1023 | # define PNG_pCAL_SUPPORTED | |
| 1024 | # endif | |
| 1025 | #endif | |
| 1026 | #ifndef PNG_NO_WRITE_sCAL | |
| 1027 | # define PNG_WRITE_sCAL_SUPPORTED | |
| 1028 | # ifndef PNG_sCAL_SUPPORTED | |
| 1029 | # define PNG_sCAL_SUPPORTED | |
| 1030 | # endif | |
| 1031 | #endif | |
| 1032 | #ifndef PNG_NO_WRITE_pHYs | |
| 1033 | # define PNG_WRITE_pHYs_SUPPORTED | |
| 1034 | # ifndef PNG_pHYs_SUPPORTED | |
| 1035 | # define PNG_pHYs_SUPPORTED | |
| 1036 | # endif | |
| 1037 | #endif | |
| 1038 | #ifndef PNG_NO_WRITE_sBIT | |
| 1039 | # define PNG_WRITE_sBIT_SUPPORTED | |
| 1040 | # ifndef PNG_sBIT_SUPPORTED | |
| 1041 | # define PNG_sBIT_SUPPORTED | |
| 1042 | # endif | |
| 1043 | #endif | |
| 1044 | #ifndef PNG_NO_WRITE_sPLT | |
| 1045 | # define PNG_WRITE_sPLT_SUPPORTED | |
| 1046 | # ifndef PNG_sPLT_SUPPORTED | |
| 1047 | # define PNG_sPLT_SUPPORTED | |
| 1048 | # endif | |
| 1049 | #endif | |
| 1050 | #ifndef PNG_NO_WRITE_sRGB | |
| 1051 | # define PNG_WRITE_sRGB_SUPPORTED | |
| 1052 | # ifndef PNG_sRGB_SUPPORTED | |
| 1053 | # define PNG_sRGB_SUPPORTED | |
| 1054 | # endif | |
| 1055 | #endif | |
| 1056 | #ifndef PNG_NO_WRITE_tEXt | |
| 1057 | # define PNG_WRITE_tEXt_SUPPORTED | |
| 1058 | # ifndef PNG_tEXt_SUPPORTED | |
| 1059 | # define PNG_tEXt_SUPPORTED | |
| 1060 | # endif | |
| 1061 | #endif | |
| 1062 | #ifndef PNG_NO_WRITE_tIME | |
| 1063 | # define PNG_WRITE_tIME_SUPPORTED | |
| 1064 | # ifndef PNG_tIME_SUPPORTED | |
| 1065 | # define PNG_tIME_SUPPORTED | |
| 1066 | # endif | |
| 1067 | #endif | |
| 1068 | #ifndef PNG_NO_WRITE_tRNS | |
| 1069 | # define PNG_WRITE_tRNS_SUPPORTED | |
| 1070 | # ifndef PNG_tRNS_SUPPORTED | |
| 1071 | # define PNG_tRNS_SUPPORTED | |
| 1072 | # endif | |
| 1073 | #endif | |
| 1074 | #ifndef PNG_NO_WRITE_zTXt | |
| 1075 | # define PNG_WRITE_zTXt_SUPPORTED | |
| 1076 | # ifndef PNG_zTXt_SUPPORTED | |
| 1077 | # define PNG_zTXt_SUPPORTED | |
| 1078 | # endif | |
| 1079 | #endif | |
| 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 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN | |
| 1086 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED | |
| 1087 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED | |
| 1088 | # endif | |
| 1089 | # endif | |
| 1090 | #endif | |
| 1091 | #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ | |
| 1092 | defined(PNG_WRITE_zTXt_SUPPORTED) | |
| 1093 | # define PNG_WRITE_TEXT_SUPPORTED | |
| 1094 | # ifndef PNG_TEXT_SUPPORTED | |
| 1095 | # define PNG_TEXT_SUPPORTED | |
| 1096 | # endif | |
| 1097 | #endif | |
| 1098 | ||
| 1099 | #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ | |
| 1100 | ||
| 1101 | /* Turn this off to disable png_read_png() and | |
| 1102 | * png_write_png() and leave the row_pointers member | |
| 1103 | * out of the info structure. | |
| 1104 | */ | |
| 1105 | #ifndef PNG_NO_INFO_IMAGE | |
| 1106 | # define PNG_INFO_IMAGE_SUPPORTED | |
| 1107 | #endif | |
| 1108 | ||
| 1109 | /* need the time information for reading tIME chunks */ | |
| 1110 | #if defined(PNG_tIME_SUPPORTED) | |
| 1111 | # if !defined(_WIN32_WCE) | |
| 1112 | /* "time.h" functions are not supported on WindowsCE */ | |
| 1113 | # include <time.h> | |
| 1114 | # endif | |
| 1115 | #endif | |
| 1116 | ||
| 1117 | /* Some typedefs to get us started. These should be safe on most of the | |
| 1118 | * common platforms. The typedefs should be at least as large as the | |
| 1119 | * numbers suggest (a png_uint_32 must be at least 32 bits long), but they | |
| 1120 | * don't have to be exactly that size. Some compilers dislike passing | |
| 1121 | * unsigned shorts as function parameters, so you may be better off using | |
| 1122 | * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may | |
| 1123 | * want to have unsigned int for png_uint_32 instead of unsigned long. | |
| 1124 | */ | |
| 1125 | ||
| 1126 | typedef unsigned long png_uint_32; | |
| 1127 | typedef long png_int_32; | |
| 1128 | typedef unsigned short png_uint_16; | |
| 1129 | typedef short png_int_16; | |
| 1130 | typedef unsigned char png_byte; | |
| 1131 | ||
| 1132 | /* This is usually size_t. It is typedef'ed just in case you need it to | |
| 1133 | change (I'm not sure if you will or not, so I thought I'd be safe) */ | |
| 1134 | #ifdef PNG_SIZE_T | |
| 1135 | typedef PNG_SIZE_T png_size_t; | |
| 970f6abe | 1136 | # define png_sizeof(x) png_convert_size(sizeof(x)) |
| 0272a10d VZ |
1137 | #else |
| 1138 | typedef size_t png_size_t; | |
| 970f6abe | 1139 | # define png_sizeof(x) sizeof(x) |
| 0272a10d VZ |
1140 | #endif |
| 1141 | ||
| 1142 | /* The following is needed for medium model support. It cannot be in the | |
| 1143 | * PNG_INTERNAL section. Needs modification for other compilers besides | |
| 1144 | * MSC. Model independent support declares all arrays and pointers to be | |
| 1145 | * large using the far keyword. The zlib version used must also support | |
| 1146 | * model independent data. As of version zlib 1.0.4, the necessary changes | |
| 1147 | * have been made in zlib. The USE_FAR_KEYWORD define triggers other | |
| 1148 | * changes that are needed. (Tim Wegner) | |
| 1149 | */ | |
| 1150 | ||
| 1151 | /* Separate compiler dependencies (problem here is that zlib.h always | |
| 1152 | defines FAR. (SJT) */ | |
| 1153 | #ifdef __BORLANDC__ | |
| 1154 | # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) | |
| 1155 | # define LDATA 1 | |
| 1156 | # else | |
| 1157 | # define LDATA 0 | |
| 1158 | # endif | |
| 1159 | /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ | |
| 1160 | # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) | |
| 1161 | # define PNG_MAX_MALLOC_64K | |
| 1162 | # if (LDATA != 1) | |
| 1163 | # ifndef FAR | |
| 1164 | # define FAR __far | |
| 1165 | # endif | |
| 1166 | # define USE_FAR_KEYWORD | |
| 1167 | # endif /* LDATA != 1 */ | |
| 1168 | /* Possibly useful for moving data out of default segment. | |
| 1169 | * Uncomment it if you want. Could also define FARDATA as | |
| 1170 | * const if your compiler supports it. (SJT) | |
| 1171 | # define FARDATA FAR | |
| 1172 | */ | |
| 1173 | # endif /* __WIN32__, __FLAT__, __CYGWIN__ */ | |
| 1174 | #endif /* __BORLANDC__ */ | |
| 1175 | ||
| 1176 | ||
| 1177 | /* Suggest testing for specific compiler first before testing for | |
| 1178 | * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, | |
| 1179 | * making reliance oncertain keywords suspect. (SJT) | |
| 1180 | */ | |
| 1181 | ||
| 1182 | /* MSC Medium model */ | |
| 1183 | #if defined(FAR) | |
| 1184 | # if defined(M_I86MM) | |
| 1185 | # define USE_FAR_KEYWORD | |
| 1186 | # define FARDATA FAR | |
| 1187 | # include <dos.h> | |
| 1188 | # endif | |
| 1189 | #endif | |
| 1190 | ||
| 1191 | /* SJT: default case */ | |
| 1192 | #ifndef FAR | |
| 1193 | # define FAR | |
| 1194 | #endif | |
| 1195 | ||
| 1196 | /* At this point FAR is always defined */ | |
| 1197 | #ifndef FARDATA | |
| 1198 | # define FARDATA | |
| 1199 | #endif | |
| 1200 | ||
| 1201 | /* Typedef for floating-point numbers that are converted | |
| 1202 | to fixed-point with a multiple of 100,000, e.g., int_gamma */ | |
| 1203 | typedef png_int_32 png_fixed_point; | |
| 1204 | ||
| 1205 | /* Add typedefs for pointers */ | |
| 1206 | typedef void FAR * png_voidp; | |
| 1207 | typedef png_byte FAR * png_bytep; | |
| 1208 | typedef png_uint_32 FAR * png_uint_32p; | |
| 1209 | typedef png_int_32 FAR * png_int_32p; | |
| 1210 | typedef png_uint_16 FAR * png_uint_16p; | |
| 1211 | typedef png_int_16 FAR * png_int_16p; | |
| 1212 | typedef PNG_CONST char FAR * png_const_charp; | |
| 1213 | typedef char FAR * png_charp; | |
| 1214 | typedef png_fixed_point FAR * png_fixed_point_p; | |
| 1215 | ||
| 1216 | #ifndef PNG_NO_STDIO | |
| 1217 | #if defined(_WIN32_WCE) | |
| 1218 | typedef HANDLE png_FILE_p; | |
| 1219 | #else | |
| 1220 | typedef FILE * png_FILE_p; | |
| 1221 | #endif | |
| 1222 | #endif | |
| 1223 | ||
| 1224 | #ifdef PNG_FLOATING_POINT_SUPPORTED | |
| 1225 | typedef double FAR * png_doublep; | |
| 1226 | #endif | |
| 1227 | ||
| 1228 | /* Pointers to pointers; i.e. arrays */ | |
| 1229 | typedef png_byte FAR * FAR * png_bytepp; | |
| 1230 | typedef png_uint_32 FAR * FAR * png_uint_32pp; | |
| 1231 | typedef png_int_32 FAR * FAR * png_int_32pp; | |
| 1232 | typedef png_uint_16 FAR * FAR * png_uint_16pp; | |
| 1233 | typedef png_int_16 FAR * FAR * png_int_16pp; | |
| 1234 | typedef PNG_CONST char FAR * FAR * png_const_charpp; | |
| 1235 | typedef char FAR * FAR * png_charpp; | |
| 1236 | typedef png_fixed_point FAR * FAR * png_fixed_point_pp; | |
| 1237 | #ifdef PNG_FLOATING_POINT_SUPPORTED | |
| 1238 | typedef double FAR * FAR * png_doublepp; | |
| 1239 | #endif | |
| 1240 | ||
| 1241 | /* Pointers to pointers to pointers; i.e., pointer to array */ | |
| 1242 | typedef char FAR * FAR * FAR * png_charppp; | |
| 1243 | ||
| 1244 | #if defined(PNG_1_0_X) || defined(PNG_1_2_X) | |
| 1245 | /* SPC - Is this stuff deprecated? */ | |
| 1246 | /* It'll be removed as of libpng-1.3.0 - GR-P */ | |
| 1247 | /* libpng typedefs for types in zlib. If zlib changes | |
| 1248 | * or another compression library is used, then change these. | |
| 1249 | * Eliminates need to change all the source files. | |
| 1250 | */ | |
| 1251 | typedef charf * png_zcharp; | |
| 1252 | typedef charf * FAR * png_zcharpp; | |
| 1253 | typedef z_stream FAR * png_zstreamp; | |
| 1254 | #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */ | |
| 1255 | ||
| 1256 | /* | |
| 1257 | * Define PNG_BUILD_DLL if the module being built is a Windows | |
| 1258 | * LIBPNG DLL. | |
| 1259 | * | |
| 1260 | * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. | |
| 1261 | * It is equivalent to Microsoft predefined macro _DLL that is | |
| 1262 | * automatically defined when you compile using the share | |
| 1263 | * version of the CRT (C Run-Time library) | |
| 1264 | * | |
| 1265 | * The cygwin mods make this behavior a little different: | |
| 1266 | * Define PNG_BUILD_DLL if you are building a dll for use with cygwin | |
| 1267 | * Define PNG_STATIC if you are building a static library for use with cygwin, | |
| 1268 | * -or- if you are building an application that you want to link to the | |
| 1269 | * static library. | |
| 1270 | * PNG_USE_DLL is defined by default (no user action needed) unless one of | |
| 1271 | * the other flags is defined. | |
| 1272 | */ | |
| 1273 | ||
| 1274 | #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) | |
| 1275 | # define PNG_DLL | |
| 1276 | #endif | |
| 1277 | /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. | |
| 1278 | * When building a static lib, default to no GLOBAL ARRAYS, but allow | |
| 1279 | * command-line override | |
| 1280 | */ | |
| 1281 | #if defined(__CYGWIN__) | |
| 1282 | # if !defined(PNG_STATIC) | |
| 1283 | # if defined(PNG_USE_GLOBAL_ARRAYS) | |
| 1284 | # undef PNG_USE_GLOBAL_ARRAYS | |
| 1285 | # endif | |
| 1286 | # if !defined(PNG_USE_LOCAL_ARRAYS) | |
| 1287 | # define PNG_USE_LOCAL_ARRAYS | |
| 1288 | # endif | |
| 1289 | # else | |
| 1290 | # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) | |
| 1291 | # if defined(PNG_USE_GLOBAL_ARRAYS) | |
| 1292 | # undef PNG_USE_GLOBAL_ARRAYS | |
| 1293 | # endif | |
| 1294 | # endif | |
| 1295 | # endif | |
| 1296 | # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) | |
| 1297 | # define PNG_USE_LOCAL_ARRAYS | |
| 1298 | # endif | |
| 1299 | #endif | |
| 1300 | ||
| 1301 | /* Do not use global arrays (helps with building DLL's) | |
| 1302 | * They are no longer used in libpng itself, since version 1.0.5c, | |
| 1303 | * but might be required for some pre-1.0.5c applications. | |
| 1304 | */ | |
| 1305 | #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) | |
| 1306 | # if defined(PNG_NO_GLOBAL_ARRAYS) || \ | |
| 1307 | (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER) | |
| 1308 | # define PNG_USE_LOCAL_ARRAYS | |
| 1309 | # else | |
| 1310 | # define PNG_USE_GLOBAL_ARRAYS | |
| 1311 | # endif | |
| 1312 | #endif | |
| 1313 | ||
| 1314 | #if defined(__CYGWIN__) | |
| 1315 | # undef PNGAPI | |
| 1316 | # define PNGAPI __cdecl | |
| 1317 | # undef PNG_IMPEXP | |
| 1318 | # define PNG_IMPEXP | |
| 1319 | #endif | |
| 1320 | ||
| 1321 | /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", | |
| 1322 | * you may get warnings regarding the linkage of png_zalloc and png_zfree. | |
| 1323 | * Don't ignore those warnings; you must also reset the default calling | |
| 1324 | * convention in your compiler to match your PNGAPI, and you must build | |
| 1325 | * zlib and your applications the same way you build libpng. | |
| 1326 | */ | |
| 1327 | ||
| 1328 | #if defined(__MINGW32__) && !defined(PNG_MODULEDEF) | |
| 1329 | # ifndef PNG_NO_MODULEDEF | |
| 1330 | # define PNG_NO_MODULEDEF | |
| 1331 | # endif | |
| 1332 | #endif | |
| 1333 | ||
| 1334 | #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) | |
| 1335 | # define PNG_IMPEXP | |
| 1336 | #endif | |
| 1337 | ||
| 1338 | #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ | |
| 1339 | (( defined(_Windows) || defined(_WINDOWS) || \ | |
| 1340 | defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) | |
| 1341 | ||
| 1342 | # ifndef PNGAPI | |
| 1343 | # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) | |
| 1344 | # define PNGAPI __cdecl | |
| 1345 | # else | |
| 1346 | # define PNGAPI _cdecl | |
| 1347 | # endif | |
| 1348 | # endif | |
| 1349 | ||
| 1350 | # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ | |
| 1351 | 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) | |
| 1352 | # define PNG_IMPEXP | |
| 1353 | # endif | |
| 1354 | ||
| 1355 | # if !defined(PNG_IMPEXP) | |
| 1356 | ||
| 1357 | # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol | |
| 1358 | # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol | |
| 1359 | ||
| 1360 | /* Borland/Microsoft */ | |
| 1361 | # if defined(_MSC_VER) || defined(__BORLANDC__) | |
| 1362 | # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) | |
| 1363 | # define PNG_EXPORT PNG_EXPORT_TYPE1 | |
| 1364 | # else | |
| 1365 | # define PNG_EXPORT PNG_EXPORT_TYPE2 | |
| 1366 | # if defined(PNG_BUILD_DLL) | |
| 1367 | # define PNG_IMPEXP __export | |
| 1368 | # else | |
| 1369 | # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in | |
| 1370 | VC++ */ | |
| 1371 | # endif /* Exists in Borland C++ for | |
| 1372 | C++ classes (== huge) */ | |
| 1373 | # endif | |
| 1374 | # endif | |
| 1375 | ||
| 1376 | # if !defined(PNG_IMPEXP) | |
| 1377 | # if defined(PNG_BUILD_DLL) | |
| 1378 | # define PNG_IMPEXP __declspec(dllexport) | |
| 1379 | # else | |
| 1380 | # define PNG_IMPEXP __declspec(dllimport) | |
| 1381 | # endif | |
| 1382 | # endif | |
| 1383 | # endif /* PNG_IMPEXP */ | |
| 1384 | #else /* !(DLL || non-cygwin WINDOWS) */ | |
| 1385 | # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) | |
| 1386 | # ifndef PNGAPI | |
| 1387 | # define PNGAPI _System | |
| 1388 | # endif | |
| 1389 | # else | |
| 1390 | # if 0 /* ... other platforms, with other meanings */ | |
| 1391 | # endif | |
| 1392 | # endif | |
| 1393 | #endif | |
| 1394 | ||
| 1395 | #ifndef PNGAPI | |
| 1396 | # define PNGAPI | |
| 1397 | #endif | |
| 1398 | #ifndef PNG_IMPEXP | |
| 1399 | # define PNG_IMPEXP | |
| 1400 | #endif | |
| 1401 | ||
| 1402 | #ifdef PNG_BUILDSYMS | |
| 1403 | # ifndef PNG_EXPORT | |
| 1404 | # define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END | |
| 1405 | # endif | |
| 1406 | # ifdef PNG_USE_GLOBAL_ARRAYS | |
| 1407 | # ifndef PNG_EXPORT_VAR | |
| 1408 | # define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT | |
| 1409 | # endif | |
| 1410 | # endif | |
| 1411 | #endif | |
| 1412 | ||
| 1413 | #ifndef PNG_EXPORT | |
| 1414 | # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol | |
| 1415 | #endif | |
| 1416 | ||
| 1417 | #ifdef PNG_USE_GLOBAL_ARRAYS | |
| 1418 | # ifndef PNG_EXPORT_VAR | |
| 1419 | # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type | |
| 1420 | # endif | |
| 1421 | #endif | |
| 1422 | ||
| 1423 | /* User may want to use these so they are not in PNG_INTERNAL. Any library | |
| 1424 | * functions that are passed far data must be model independent. | |
| 1425 | */ | |
| 1426 | ||
| 1427 | #ifndef PNG_ABORT | |
| 1428 | # define PNG_ABORT() abort() | |
| 1429 | #endif | |
| 1430 | ||
| 1431 | #ifdef PNG_SETJMP_SUPPORTED | |
| 1432 | # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) | |
| 1433 | #else | |
| 1434 | # define png_jmpbuf(png_ptr) \ | |
| 1435 | (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) | |
| 1436 | #endif | |
| 1437 | ||
| 1438 | #if defined(USE_FAR_KEYWORD) /* memory model independent fns */ | |
| 1439 | /* use this to make far-to-near assignments */ | |
| 1440 | # define CHECK 1 | |
| 1441 | # define NOCHECK 0 | |
| 1442 | # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) | |
| 1443 | # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) | |
| 1444 | # define png_snprintf _fsnprintf /* Added to v 1.2.19 */ | |
| 0272a10d VZ |
1445 | # define png_strlen _fstrlen |
| 1446 | # define png_memcmp _fmemcmp /* SJT: added */ | |
| 1447 | # define png_memcpy _fmemcpy | |
| 1448 | # define png_memset _fmemset | |
| 1449 | #else /* use the usual functions */ | |
| 1450 | # define CVT_PTR(ptr) (ptr) | |
| 1451 | # define CVT_PTR_NOCHECK(ptr) (ptr) | |
| 1452 | # ifndef PNG_NO_SNPRINTF | |
| 1453 | # ifdef _MSC_VER | |
| 1454 | # define png_snprintf _snprintf /* Added to v 1.2.19 */ | |
| 1455 | # define png_snprintf2 _snprintf | |
| 1456 | # define png_snprintf6 _snprintf | |
| 1457 | # else | |
| 1458 | # define png_snprintf snprintf /* Added to v 1.2.19 */ | |
| 1459 | # define png_snprintf2 snprintf | |
| 1460 | # define png_snprintf6 snprintf | |
| 1461 | # endif | |
| 1462 | # else | |
| 1463 | /* You don't have or don't want to use snprintf(). Caution: Using | |
| 1464 | * sprintf instead of snprintf exposes your application to accidental | |
| 1465 | * or malevolent buffer overflows. If you don't have snprintf() | |
| 1466 | * as a general rule you should provide one (you can get one from | |
| 1467 | * Portable OpenSSH). */ | |
| 1468 | # define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1) | |
| 1469 | # define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2) | |
| 1470 | # define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ | |
| 1471 | sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) | |
| 1472 | # endif | |
| 0272a10d VZ |
1473 | # define png_strlen strlen |
| 1474 | # define png_memcmp memcmp /* SJT: added */ | |
| 1475 | # define png_memcpy memcpy | |
| 1476 | # define png_memset memset | |
| 1477 | #endif | |
| 1478 | /* End of memory model independent support */ | |
| 1479 | ||
| 1480 | /* Just a little check that someone hasn't tried to define something | |
| 1481 | * contradictory. | |
| 1482 | */ | |
| 1483 | #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) | |
| 1484 | # undef PNG_ZBUF_SIZE | |
| 1485 | # define PNG_ZBUF_SIZE 65536L | |
| 1486 | #endif | |
| 1487 | ||
| 1488 | /* Added at libpng-1.2.8 */ | |
| 1489 | #endif /* PNG_VERSION_INFO_ONLY */ | |
| 1490 | ||
| 1491 | #endif /* PNGCONF_H */ |