| | 1 | /* pngconf.h - machine configurable file for libpng |
| | 2 | * |
| | 3 | * libpng 1.2.5rc3 - September 18, 2002 |
| | 4 | * For conditions of distribution and use, see copyright notice in png.h |
| | 5 | * Copyright (c) 1998-2002 Glenn Randers-Pehrson |
| | 6 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
| | 7 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
| | 8 | */ |
| | 9 | |
| | 10 | /* Any machine specific code is near the front of this file, so if you |
| | 11 | * are configuring libpng for a machine, you may want to read the section |
| | 12 | * starting here down to where it starts to typedef png_color, png_text, |
| | 13 | * and png_info. |
| | 14 | */ |
| | 15 | |
| | 16 | #ifndef PNGCONF_H |
| | 17 | #define PNGCONF_H |
| | 18 | |
| | 19 | /* This is the size of the compression buffer, and thus the size of |
| | 20 | * an IDAT chunk. Make this whatever size you feel is best for your |
| | 21 | * machine. One of these will be allocated per png_struct. When this |
| | 22 | * is full, it writes the data to the disk, and does some other |
| | 23 | * calculations. Making this an extremely small size will slow |
| | 24 | * the library down, but you may want to experiment to determine |
| | 25 | * where it becomes significant, if you are concerned with memory |
| | 26 | * usage. Note that zlib allocates at least 32Kb also. For readers, |
| | 27 | * this describes the size of the buffer available to read the data in. |
| | 28 | * Unless this gets smaller than the size of a row (compressed), |
| | 29 | * it should not make much difference how big this is. |
| | 30 | */ |
| | 31 | |
| | 32 | #ifndef PNG_ZBUF_SIZE |
| | 33 | # define PNG_ZBUF_SIZE 8192 |
| | 34 | #endif |
| | 35 | |
| | 36 | /* Enable if you want a write-only libpng */ |
| | 37 | |
| | 38 | #ifndef PNG_NO_READ_SUPPORTED |
| | 39 | # define PNG_READ_SUPPORTED |
| | 40 | #endif |
| | 41 | |
| | 42 | /* Enable if you want a read-only libpng */ |
| | 43 | |
| | 44 | #ifndef PNG_NO_WRITE_SUPPORTED |
| | 45 | # define PNG_WRITE_SUPPORTED |
| | 46 | #endif |
| | 47 | |
| | 48 | /* Enabled by default in 1.2.0. You can disable this if you don't need to |
| | 49 | support PNGs that are embedded in MNG datastreams */ |
| | 50 | #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES) |
| | 51 | # ifndef PNG_MNG_FEATURES_SUPPORTED |
| | 52 | # define PNG_MNG_FEATURES_SUPPORTED |
| | 53 | # endif |
| | 54 | #endif |
| | 55 | |
| | 56 | #ifndef PNG_NO_FLOATING_POINT_SUPPORTED |
| | 57 | # ifndef PNG_FLOATING_POINT_SUPPORTED |
| | 58 | # define PNG_FLOATING_POINT_SUPPORTED |
| | 59 | # endif |
| | 60 | #endif |
| | 61 | |
| | 62 | /* If you are running on a machine where you cannot allocate more |
| | 63 | * than 64K of memory at once, uncomment this. While libpng will not |
| | 64 | * normally need that much memory in a chunk (unless you load up a very |
| | 65 | * large file), zlib needs to know how big of a chunk it can use, and |
| | 66 | * libpng thus makes sure to check any memory allocation to verify it |
| | 67 | * will fit into memory. |
| | 68 | #define PNG_MAX_MALLOC_64K |
| | 69 | */ |
| | 70 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
| | 71 | # define PNG_MAX_MALLOC_64K |
| | 72 | #endif |
| | 73 | |
| | 74 | /* Special munging to support doing things the 'cygwin' way: |
| | 75 | * 'Normal' png-on-win32 defines/defaults: |
| | 76 | * PNG_BUILD_DLL -- building dll |
| | 77 | * PNG_USE_DLL -- building an application, linking to dll |
| | 78 | * (no define) -- building static library, or building an |
| | 79 | * application and linking to the static lib |
| | 80 | * 'Cygwin' defines/defaults: |
| | 81 | * PNG_BUILD_DLL -- (ignored) building the dll |
| | 82 | * (no define) -- (ignored) building an application, linking to the dll |
| | 83 | * PNG_STATIC -- (ignored) building the static lib, or building an |
| | 84 | * application that links to the static lib. |
| | 85 | * ALL_STATIC -- (ignored) building various static libs, or building an |
| | 86 | * application that links to the static libs. |
| | 87 | * Thus, |
| | 88 | * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and |
| | 89 | * this bit of #ifdefs will define the 'correct' config variables based on |
| | 90 | * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but |
| | 91 | * unnecessary. |
| | 92 | * |
| | 93 | * Also, the precedence order is: |
| | 94 | * ALL_STATIC (since we can't #undef something outside our namespace) |
| | 95 | * PNG_BUILD_DLL |
| | 96 | * PNG_STATIC |
| | 97 | * (nothing) == PNG_USE_DLL |
| | 98 | * |
| | 99 | * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent |
| | 100 | * of auto-import in binutils, we no longer need to worry about |
| | 101 | * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, |
| | 102 | * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes |
| | 103 | * to __declspec() stuff. However, we DO need to worry about |
| | 104 | * PNG_BUILD_DLL and PNG_STATIC because those change some defaults |
| | 105 | * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. |
| | 106 | */ |
| | 107 | #if defined(__CYGWIN__) |
| | 108 | # if defined(ALL_STATIC) |
| | 109 | # if defined(PNG_BUILD_DLL) |
| | 110 | # undef PNG_BUILD_DLL |
| | 111 | # endif |
| | 112 | # if defined(PNG_USE_DLL) |
| | 113 | # undef PNG_USE_DLL |
| | 114 | # endif |
| | 115 | # if defined(PNG_DLL) |
| | 116 | # undef PNG_DLL |
| | 117 | # endif |
| | 118 | # if !defined(PNG_STATIC) |
| | 119 | # define PNG_STATIC |
| | 120 | # endif |
| | 121 | # else |
| | 122 | # if defined (PNG_BUILD_DLL) |
| | 123 | # if defined(PNG_STATIC) |
| | 124 | # undef PNG_STATIC |
| | 125 | # endif |
| | 126 | # if defined(PNG_USE_DLL) |
| | 127 | # undef PNG_USE_DLL |
| | 128 | # endif |
| | 129 | # if !defined(PNG_DLL) |
| | 130 | # define PNG_DLL |
| | 131 | # endif |
| | 132 | # else |
| | 133 | # if defined(PNG_STATIC) |
| | 134 | # if defined(PNG_USE_DLL) |
| | 135 | # undef PNG_USE_DLL |
| | 136 | # endif |
| | 137 | # if defined(PNG_DLL) |
| | 138 | # undef PNG_DLL |
| | 139 | # endif |
| | 140 | # else |
| | 141 | # if !defined(PNG_USE_DLL) |
| | 142 | # define PNG_USE_DLL |
| | 143 | # endif |
| | 144 | # if !defined(PNG_DLL) |
| | 145 | # define PNG_DLL |
| | 146 | # endif |
| | 147 | # endif |
| | 148 | # endif |
| | 149 | # endif |
| | 150 | #endif |
| | 151 | |
| | 152 | /* This protects us against compilers that run on a windowing system |
| | 153 | * and thus don't have or would rather us not use the stdio types: |
| | 154 | * stdin, stdout, and stderr. The only one currently used is stderr |
| | 155 | * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will |
| | 156 | * prevent these from being compiled and used. #defining PNG_NO_STDIO |
| | 157 | * will also prevent these, plus will prevent the entire set of stdio |
| | 158 | * macros and functions (FILE *, printf, etc.) from being compiled and used, |
| | 159 | * unless (PNG_DEBUG > 0) has been #defined. |
| | 160 | * |
| | 161 | * #define PNG_NO_CONSOLE_IO |
| | 162 | * #define PNG_NO_STDIO |
| | 163 | */ |
| | 164 | |
| | 165 | #if defined(_WIN32_WCE) |
| | 166 | # include <windows.h> |
| | 167 | /* Console I/O functions are not supported on WindowsCE */ |
| | 168 | # define PNG_NO_CONSOLE_IO |
| | 169 | # ifdef PNG_DEBUG |
| | 170 | # undef PNG_DEBUG |
| | 171 | # endif |
| | 172 | #endif |
| | 173 | |
| | 174 | #ifdef PNG_BUILD_DLL |
| | 175 | # ifndef PNG_CONSOLE_IO_SUPPORTED |
| | 176 | # ifndef PNG_NO_CONSOLE_IO |
| | 177 | # define PNG_NO_CONSOLE_IO |
| | 178 | # endif |
| | 179 | # endif |
| | 180 | #endif |
| | 181 | |
| | 182 | # ifdef PNG_NO_STDIO |
| | 183 | # ifndef PNG_NO_CONSOLE_IO |
| | 184 | # define PNG_NO_CONSOLE_IO |
| | 185 | # endif |
| | 186 | # ifdef PNG_DEBUG |
| | 187 | # if (PNG_DEBUG > 0) |
| | 188 | # include <stdio.h> |
| | 189 | # endif |
| | 190 | # endif |
| | 191 | # else |
| | 192 | # if !defined(_WIN32_WCE) |
| | 193 | /* "stdio.h" functions are not supported on WindowsCE */ |
| | 194 | # include <stdio.h> |
| | 195 | # endif |
| | 196 | # endif |
| | 197 | |
| | 198 | /* This macro protects us against machines that don't have function |
| | 199 | * prototypes (ie K&R style headers). If your compiler does not handle |
| | 200 | * function prototypes, define this macro and use the included ansi2knr. |
| | 201 | * I've always been able to use _NO_PROTO as the indicator, but you may |
| | 202 | * need to drag the empty declaration out in front of here, or change the |
| | 203 | * ifdef to suit your own needs. |
| | 204 | */ |
| | 205 | #ifndef PNGARG |
| | 206 | |
| | 207 | #ifdef OF /* zlib prototype munger */ |
| | 208 | # define PNGARG(arglist) OF(arglist) |
| | 209 | #else |
| | 210 | |
| | 211 | #ifdef _NO_PROTO |
| | 212 | # define PNGARG(arglist) () |
| | 213 | # ifndef PNG_TYPECAST_NULL |
| | 214 | # define PNG_TYPECAST_NULL |
| | 215 | # endif |
| | 216 | #else |
| | 217 | # define PNGARG(arglist) arglist |
| | 218 | #endif /* _NO_PROTO */ |
| | 219 | |
| | 220 | #endif /* OF */ |
| | 221 | |
| | 222 | #endif /* PNGARG */ |
| | 223 | |
| | 224 | /* Try to determine if we are compiling on a Mac. Note that testing for |
| | 225 | * just __MWERKS__ is not good enough, because the Codewarrior is now used |
| | 226 | * on non-Mac platforms. |
| | 227 | */ |
| | 228 | #ifndef MACOS |
| | 229 | # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ |
| | 230 | defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) |
| | 231 | # define MACOS |
| | 232 | # endif |
| | 233 | #endif |
| | 234 | |
| | 235 | /* enough people need this for various reasons to include it here */ |
| | 236 | #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) |
| | 237 | # include <sys/types.h> |
| | 238 | #endif |
| | 239 | |
| | 240 | #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) |
| | 241 | # define PNG_SETJMP_SUPPORTED |
| | 242 | #endif |
| | 243 | |
| | 244 | #ifdef PNG_SETJMP_SUPPORTED |
| | 245 | /* This is an attempt to force a single setjmp behaviour on Linux. If |
| | 246 | * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. |
| | 247 | */ |
| | 248 | |
| | 249 | # ifdef __linux__ |
| | 250 | # ifdef _BSD_SOURCE |
| | 251 | # define PNG_SAVE_BSD_SOURCE |
| | 252 | # undef _BSD_SOURCE |
| | 253 | # endif |
| | 254 | # ifdef _SETJMP_H |
| | 255 | __png.h__ already includes setjmp.h; |
| | 256 | __dont__ include it again.; |
| | 257 | # endif |
| | 258 | # endif /* __linux__ */ |
| | 259 | |
| | 260 | /* include setjmp.h for error handling */ |
| | 261 | # include <setjmp.h> |
| | 262 | |
| | 263 | # ifdef __linux__ |
| | 264 | # ifdef PNG_SAVE_BSD_SOURCE |
| | 265 | # define _BSD_SOURCE |
| | 266 | # undef PNG_SAVE_BSD_SOURCE |
| | 267 | # endif |
| | 268 | # endif /* __linux__ */ |
| | 269 | #endif /* PNG_SETJMP_SUPPORTED */ |
| | 270 | |
| | 271 | #ifdef BSD |
| | 272 | # include <strings.h> |
| | 273 | #else |
| | 274 | # include <string.h> |
| | 275 | #endif |
| | 276 | |
| | 277 | /* Other defines for things like memory and the like can go here. */ |
| | 278 | #ifdef PNG_INTERNAL |
| | 279 | |
| | 280 | #include <stdlib.h> |
| | 281 | |
| | 282 | /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which |
| | 283 | * aren't usually used outside the library (as far as I know), so it is |
| | 284 | * debatable if they should be exported at all. In the future, when it is |
| | 285 | * possible to have run-time registry of chunk-handling functions, some of |
| | 286 | * these will be made available again. |
| | 287 | #define PNG_EXTERN extern |
| | 288 | */ |
| | 289 | #define PNG_EXTERN |
| | 290 | |
| | 291 | /* Other defines specific to compilers can go here. Try to keep |
| | 292 | * them inside an appropriate ifdef/endif pair for portability. |
| | 293 | */ |
| | 294 | |
| | 295 | #if defined(PNG_FLOATING_POINT_SUPPORTED) |
| | 296 | # if defined(MACOS) |
| | 297 | /* We need to check that <math.h> hasn't already been included earlier |
| | 298 | * as it seems it doesn't agree with <fp.h>, yet we should really use |
| | 299 | * <fp.h> if possible. |
| | 300 | */ |
| | 301 | # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) |
| | 302 | # include <fp.h> |
| | 303 | # endif |
| | 304 | # else |
| | 305 | # include <math.h> |
| | 306 | # endif |
| | 307 | # if defined(_AMIGA) && defined(__SASC) && defined(_M68881) |
| | 308 | /* Amiga SAS/C: We must include builtin FPU functions when compiling using |
| | 309 | * MATH=68881 |
| | 310 | */ |
| | 311 | # include <m68881.h> |
| | 312 | # endif |
| | 313 | #endif |
| | 314 | |
| | 315 | /* Codewarrior on NT has linking problems without this. */ |
| | 316 | #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) |
| | 317 | # define PNG_ALWAYS_EXTERN |
| | 318 | #endif |
| | 319 | |
| | 320 | /* For some reason, Borland C++ defines memcmp, etc. in mem.h, not |
| | 321 | * stdlib.h like it should (I think). Or perhaps this is a C++ |
| | 322 | * "feature"? |
| | 323 | */ |
| | 324 | #ifdef __TURBOC__ |
| | 325 | # include <mem.h> |
| | 326 | # include "alloc.h" |
| | 327 | #endif |
| | 328 | |
| | 329 | #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ |
| | 330 | defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) |
| | 331 | # include <malloc.h> |
| | 332 | #endif |
| | 333 | |
| | 334 | /* This controls how fine the dithering gets. As this allocates |
| | 335 | * a largish chunk of memory (32K), those who are not as concerned |
| | 336 | * with dithering quality can decrease some or all of these. |
| | 337 | */ |
| | 338 | #ifndef PNG_DITHER_RED_BITS |
| | 339 | # define PNG_DITHER_RED_BITS 5 |
| | 340 | #endif |
| | 341 | #ifndef PNG_DITHER_GREEN_BITS |
| | 342 | # define PNG_DITHER_GREEN_BITS 5 |
| | 343 | #endif |
| | 344 | #ifndef PNG_DITHER_BLUE_BITS |
| | 345 | # define PNG_DITHER_BLUE_BITS 5 |
| | 346 | #endif |
| | 347 | |
| | 348 | /* This controls how fine the gamma correction becomes when you |
| | 349 | * are only interested in 8 bits anyway. Increasing this value |
| | 350 | * results in more memory being used, and more pow() functions |
| | 351 | * being called to fill in the gamma tables. Don't set this value |
| | 352 | * less then 8, and even that may not work (I haven't tested it). |
| | 353 | */ |
| | 354 | |
| | 355 | #ifndef PNG_MAX_GAMMA_8 |
| | 356 | # define PNG_MAX_GAMMA_8 11 |
| | 357 | #endif |
| | 358 | |
| | 359 | /* This controls how much a difference in gamma we can tolerate before |
| | 360 | * we actually start doing gamma conversion. |
| | 361 | */ |
| | 362 | #ifndef PNG_GAMMA_THRESHOLD |
| | 363 | # define PNG_GAMMA_THRESHOLD 0.05 |
| | 364 | #endif |
| | 365 | |
| | 366 | #endif /* PNG_INTERNAL */ |
| | 367 | |
| | 368 | /* The following uses const char * instead of char * for error |
| | 369 | * and warning message functions, so some compilers won't complain. |
| | 370 | * If you do not want to use const, define PNG_NO_CONST here. |
| | 371 | */ |
| | 372 | |
| | 373 | #ifndef PNG_NO_CONST |
| | 374 | # define PNG_CONST const |
| | 375 | #else |
| | 376 | # define PNG_CONST |
| | 377 | #endif |
| | 378 | |
| | 379 | /* The following defines give you the ability to remove code from the |
| | 380 | * library that you will not be using. I wish I could figure out how to |
| | 381 | * automate this, but I can't do that without making it seriously hard |
| | 382 | * on the users. So if you are not using an ability, change the #define |
| | 383 | * to and #undef, and that part of the library will not be compiled. If |
| | 384 | * your linker can't find a function, you may want to make sure the |
| | 385 | * ability is defined here. Some of these depend upon some others being |
| | 386 | * defined. I haven't figured out all the interactions here, so you may |
| | 387 | * have to experiment awhile to get everything to compile. If you are |
| | 388 | * creating or using a shared library, you probably shouldn't touch this, |
| | 389 | * as it will affect the size of the structures, and this will cause bad |
| | 390 | * things to happen if the library and/or application ever change. |
| | 391 | */ |
| | 392 | |
| | 393 | /* Any features you will not be using can be undef'ed here */ |
| | 394 | |
| | 395 | /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user |
| | 396 | * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS |
| | 397 | * on the compile line, then pick and choose which ones to define without |
| | 398 | * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED |
| | 399 | * if you only want to have a png-compliant reader/writer but don't need |
| | 400 | * any of the extra transformations. This saves about 80 kbytes in a |
| | 401 | * typical installation of the library. (PNG_NO_* form added in version |
| | 402 | * 1.0.1c, for consistency) |
| | 403 | */ |
| | 404 | |
| | 405 | /* The size of the png_text structure changed in libpng-1.0.6 when |
| | 406 | * iTXt is supported. It is turned off by default, to support old apps |
| | 407 | * that malloc the png_text structure instead of calling png_set_text() |
| | 408 | * and letting libpng malloc it. It will be turned on by default in |
| | 409 | * libpng-1.3.0. |
| | 410 | */ |
| | 411 | |
| | 412 | #ifndef PNG_iTXt_SUPPORTED |
| | 413 | # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) |
| | 414 | # define PNG_NO_READ_iTXt |
| | 415 | # endif |
| | 416 | # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) |
| | 417 | # define PNG_NO_WRITE_iTXt |
| | 418 | # endif |
| | 419 | #endif |
| | 420 | |
| | 421 | /* The following support, added after version 1.0.0, can be turned off here en |
| | 422 | * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility |
| | 423 | * with old applications that require the length of png_struct and png_info |
| | 424 | * to remain unchanged. |
| | 425 | */ |
| | 426 | |
| | 427 | #ifdef PNG_LEGACY_SUPPORTED |
| | 428 | # define PNG_NO_FREE_ME |
| | 429 | # define PNG_NO_READ_UNKNOWN_CHUNKS |
| | 430 | # define PNG_NO_WRITE_UNKNOWN_CHUNKS |
| | 431 | # define PNG_NO_READ_USER_CHUNKS |
| | 432 | # define PNG_NO_READ_iCCP |
| | 433 | # define PNG_NO_WRITE_iCCP |
| | 434 | # define PNG_NO_READ_iTXt |
| | 435 | # define PNG_NO_WRITE_iTXt |
| | 436 | # define PNG_NO_READ_sCAL |
| | 437 | # define PNG_NO_WRITE_sCAL |
| | 438 | # define PNG_NO_READ_sPLT |
| | 439 | # define PNG_NO_WRITE_sPLT |
| | 440 | # define PNG_NO_INFO_IMAGE |
| | 441 | # define PNG_NO_READ_RGB_TO_GRAY |
| | 442 | # define PNG_NO_READ_USER_TRANSFORM |
| | 443 | # define PNG_NO_WRITE_USER_TRANSFORM |
| | 444 | # define PNG_NO_USER_MEM |
| | 445 | # define PNG_NO_READ_EMPTY_PLTE |
| | 446 | # define PNG_NO_MNG_FEATURES |
| | 447 | # define PNG_NO_FIXED_POINT_SUPPORTED |
| | 448 | #endif |
| | 449 | |
| | 450 | /* Ignore attempt to turn off both floating and fixed point support */ |
| | 451 | #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ |
| | 452 | !defined(PNG_NO_FIXED_POINT_SUPPORTED) |
| | 453 | # define PNG_FIXED_POINT_SUPPORTED |
| | 454 | #endif |
| | 455 | |
| | 456 | #ifndef PNG_NO_FREE_ME |
| | 457 | # define PNG_FREE_ME_SUPPORTED |
| | 458 | #endif |
| | 459 | |
| | 460 | #if defined(PNG_READ_SUPPORTED) |
| | 461 | |
| | 462 | #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ |
| | 463 | !defined(PNG_NO_READ_TRANSFORMS) |
| | 464 | # define PNG_READ_TRANSFORMS_SUPPORTED |
| | 465 | #endif |
| | 466 | |
| | 467 | #ifdef PNG_READ_TRANSFORMS_SUPPORTED |
| | 468 | # ifndef PNG_NO_READ_EXPAND |
| | 469 | # define PNG_READ_EXPAND_SUPPORTED |
| | 470 | # endif |
| | 471 | # ifndef PNG_NO_READ_SHIFT |
| | 472 | # define PNG_READ_SHIFT_SUPPORTED |
| | 473 | # endif |
| | 474 | # ifndef PNG_NO_READ_PACK |
| | 475 | # define PNG_READ_PACK_SUPPORTED |
| | 476 | # endif |
| | 477 | # ifndef PNG_NO_READ_BGR |
| | 478 | # define PNG_READ_BGR_SUPPORTED |
| | 479 | # endif |
| | 480 | # ifndef PNG_NO_READ_SWAP |
| | 481 | # define PNG_READ_SWAP_SUPPORTED |
| | 482 | # endif |
| | 483 | # ifndef PNG_NO_READ_PACKSWAP |
| | 484 | # define PNG_READ_PACKSWAP_SUPPORTED |
| | 485 | # endif |
| | 486 | # ifndef PNG_NO_READ_INVERT |
| | 487 | # define PNG_READ_INVERT_SUPPORTED |
| | 488 | # endif |
| | 489 | # ifndef PNG_NO_READ_DITHER |
| | 490 | # define PNG_READ_DITHER_SUPPORTED |
| | 491 | # endif |
| | 492 | # ifndef PNG_NO_READ_BACKGROUND |
| | 493 | # define PNG_READ_BACKGROUND_SUPPORTED |
| | 494 | # endif |
| | 495 | # ifndef PNG_NO_READ_16_TO_8 |
| | 496 | # define PNG_READ_16_TO_8_SUPPORTED |
| | 497 | # endif |
| | 498 | # ifndef PNG_NO_READ_FILLER |
| | 499 | # define PNG_READ_FILLER_SUPPORTED |
| | 500 | # endif |
| | 501 | # ifndef PNG_NO_READ_GAMMA |
| | 502 | # define PNG_READ_GAMMA_SUPPORTED |
| | 503 | # endif |
| | 504 | # ifndef PNG_NO_READ_GRAY_TO_RGB |
| | 505 | # define PNG_READ_GRAY_TO_RGB_SUPPORTED |
| | 506 | # endif |
| | 507 | # ifndef PNG_NO_READ_SWAP_ALPHA |
| | 508 | # define PNG_READ_SWAP_ALPHA_SUPPORTED |
| | 509 | # endif |
| | 510 | # ifndef PNG_NO_READ_INVERT_ALPHA |
| | 511 | # define PNG_READ_INVERT_ALPHA_SUPPORTED |
| | 512 | # endif |
| | 513 | # ifndef PNG_NO_READ_STRIP_ALPHA |
| | 514 | # define PNG_READ_STRIP_ALPHA_SUPPORTED |
| | 515 | # endif |
| | 516 | # ifndef PNG_NO_READ_USER_TRANSFORM |
| | 517 | # define PNG_READ_USER_TRANSFORM_SUPPORTED |
| | 518 | # endif |
| | 519 | # ifndef PNG_NO_READ_RGB_TO_GRAY |
| | 520 | # define PNG_READ_RGB_TO_GRAY_SUPPORTED |
| | 521 | # endif |
| | 522 | #endif /* PNG_READ_TRANSFORMS_SUPPORTED */ |
| | 523 | |
| | 524 | #if !defined(PNG_NO_PROGRESSIVE_READ) && \ |
| | 525 | !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */ |
| | 526 | # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ |
| | 527 | #endif /* about interlacing capability! You'll */ |
| | 528 | /* still have interlacing unless you change the following line: */ |
| | 529 | |
| | 530 | #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ |
| | 531 | |
| | 532 | #ifndef PNG_NO_READ_COMPOSITE_NODIV |
| | 533 | # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ |
| | 534 | # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ |
| | 535 | # endif |
| | 536 | #endif |
| | 537 | |
| | 538 | /* Deprecated, will be removed from version 2.0.0. |
| | 539 | Use PNG_MNG_FEATURES_SUPPORTED instead. */ |
| | 540 | #ifndef PNG_NO_READ_EMPTY_PLTE |
| | 541 | # define PNG_READ_EMPTY_PLTE_SUPPORTED |
| | 542 | #endif |
| | 543 | |
| | 544 | #endif /* PNG_READ_SUPPORTED */ |
| | 545 | |
| | 546 | #if defined(PNG_WRITE_SUPPORTED) |
| | 547 | |
| | 548 | # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ |
| | 549 | !defined(PNG_NO_WRITE_TRANSFORMS) |
| | 550 | # define PNG_WRITE_TRANSFORMS_SUPPORTED |
| | 551 | #endif |
| | 552 | |
| | 553 | #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED |
| | 554 | # ifndef PNG_NO_WRITE_SHIFT |
| | 555 | # define PNG_WRITE_SHIFT_SUPPORTED |
| | 556 | # endif |
| | 557 | # ifndef PNG_NO_WRITE_PACK |
| | 558 | # define PNG_WRITE_PACK_SUPPORTED |
| | 559 | # endif |
| | 560 | # ifndef PNG_NO_WRITE_BGR |
| | 561 | # define PNG_WRITE_BGR_SUPPORTED |
| | 562 | # endif |
| | 563 | # ifndef PNG_NO_WRITE_SWAP |
| | 564 | # define PNG_WRITE_SWAP_SUPPORTED |
| | 565 | # endif |
| | 566 | # ifndef PNG_NO_WRITE_PACKSWAP |
| | 567 | # define PNG_WRITE_PACKSWAP_SUPPORTED |
| | 568 | # endif |
| | 569 | # ifndef PNG_NO_WRITE_INVERT |
| | 570 | # define PNG_WRITE_INVERT_SUPPORTED |
| | 571 | # endif |
| | 572 | # ifndef PNG_NO_WRITE_FILLER |
| | 573 | # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ |
| | 574 | # endif |
| | 575 | # ifndef PNG_NO_WRITE_SWAP_ALPHA |
| | 576 | # define PNG_WRITE_SWAP_ALPHA_SUPPORTED |
| | 577 | # endif |
| | 578 | # ifndef PNG_NO_WRITE_INVERT_ALPHA |
| | 579 | # define PNG_WRITE_INVERT_ALPHA_SUPPORTED |
| | 580 | # endif |
| | 581 | # ifndef PNG_NO_WRITE_USER_TRANSFORM |
| | 582 | # define PNG_WRITE_USER_TRANSFORM_SUPPORTED |
| | 583 | # endif |
| | 584 | #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ |
| | 585 | |
| | 586 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ |
| | 587 | defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| | 588 | # ifndef PNG_NO_USER_TRANSFORM_PTR |
| | 589 | # define PNG_USER_TRANSFORM_PTR_SUPPORTED |
| | 590 | # endif |
| | 591 | #endif |
| | 592 | |
| | 593 | #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant |
| | 594 | encoders, but can cause trouble |
| | 595 | if left undefined */ |
| | 596 | |
| | 597 | #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ |
| | 598 | defined(PNG_FLOATING_POINT_SUPPORTED) |
| | 599 | # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED |
| | 600 | #endif |
| | 601 | |
| | 602 | #ifndef PNG_1_0_X |
| | 603 | #ifndef PNG_NO_ERROR_NUMBERS |
| | 604 | #define PNG_ERROR_NUMBERS_SUPPORTED |
| | 605 | #endif |
| | 606 | #endif /* PNG_1_0_X */ |
| | 607 | |
| | 608 | #ifndef PNG_NO_WRITE_FLUSH |
| | 609 | # define PNG_WRITE_FLUSH_SUPPORTED |
| | 610 | #endif |
| | 611 | |
| | 612 | /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ |
| | 613 | #ifndef PNG_NO_WRITE_EMPTY_PLTE |
| | 614 | # define PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| | 615 | #endif |
| | 616 | |
| | 617 | #endif /* PNG_WRITE_SUPPORTED */ |
| | 618 | |
| | 619 | #ifndef PNG_NO_STDIO |
| | 620 | # define PNG_TIME_RFC1123_SUPPORTED |
| | 621 | #endif |
| | 622 | |
| | 623 | /* This adds extra functions in pngget.c for accessing data from the |
| | 624 | * info pointer (added in version 0.99) |
| | 625 | * png_get_image_width() |
| | 626 | * png_get_image_height() |
| | 627 | * png_get_bit_depth() |
| | 628 | * png_get_color_type() |
| | 629 | * png_get_compression_type() |
| | 630 | * png_get_filter_type() |
| | 631 | * png_get_interlace_type() |
| | 632 | * png_get_pixel_aspect_ratio() |
| | 633 | * png_get_pixels_per_meter() |
| | 634 | * png_get_x_offset_pixels() |
| | 635 | * png_get_y_offset_pixels() |
| | 636 | * png_get_x_offset_microns() |
| | 637 | * png_get_y_offset_microns() |
| | 638 | */ |
| | 639 | #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) |
| | 640 | # define PNG_EASY_ACCESS_SUPPORTED |
| | 641 | #endif |
| | 642 | |
| | 643 | /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 |
| | 644 | even when PNG_USE_PNGVCRD or PNG_USE_PNGGCCRD is not defined */ |
| | 645 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) |
| | 646 | # ifndef PNG_ASSEMBLER_CODE_SUPPORTED |
| | 647 | # define PNG_ASSEMBLER_CODE_SUPPORTED |
| | 648 | # endif |
| | 649 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) |
| | 650 | # define PNG_MMX_CODE_SUPPORTED |
| | 651 | # endif |
| | 652 | #endif |
| | 653 | |
| | 654 | /* If you are sure that you don't need thread safety and you are compiling |
| | 655 | with PNG_USE_PNGCCRD for an MMX application, you can define this for |
| | 656 | faster execution. See pnggccrd.c. |
| | 657 | #define PNG_THREAD_UNSAFE_OK |
| | 658 | */ |
| | 659 | |
| | 660 | #if !defined(PNG_1_0_X) |
| | 661 | #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) |
| | 662 | # define PNG_USER_MEM_SUPPORTED |
| | 663 | #endif |
| | 664 | #endif /* PNG_1_0_X */ |
| | 665 | |
| | 666 | /* These are currently experimental features, define them if you want */ |
| | 667 | |
| | 668 | /* very little testing */ |
| | 669 | /* |
| | 670 | #ifdef PNG_READ_SUPPORTED |
| | 671 | # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| | 672 | # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| | 673 | # endif |
| | 674 | #endif |
| | 675 | */ |
| | 676 | |
| | 677 | /* This is only for PowerPC big-endian and 680x0 systems */ |
| | 678 | /* some testing */ |
| | 679 | /* |
| | 680 | #ifdef PNG_READ_SUPPORTED |
| | 681 | # ifndef PNG_PNG_READ_BIG_ENDIAN_SUPPORTED |
| | 682 | # define PNG_READ_BIG_ENDIAN_SUPPORTED |
| | 683 | # endif |
| | 684 | #endif |
| | 685 | */ |
| | 686 | |
| | 687 | /* Buggy compilers (e.g., gcc 2.7.2.2) need this */ |
| | 688 | /* |
| | 689 | #define PNG_NO_POINTER_INDEXING |
| | 690 | */ |
| | 691 | |
| | 692 | /* These functions are turned off by default, as they will be phased out. */ |
| | 693 | /* |
| | 694 | #define PNG_USELESS_TESTS_SUPPORTED |
| | 695 | #define PNG_CORRECT_PALETTE_SUPPORTED |
| | 696 | */ |
| | 697 | |
| | 698 | /* Any chunks you are not interested in, you can undef here. The |
| | 699 | * ones that allocate memory may be expecially important (hIST, |
| | 700 | * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info |
| | 701 | * a bit smaller. |
| | 702 | */ |
| | 703 | |
| | 704 | #if defined(PNG_READ_SUPPORTED) && \ |
| | 705 | !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
| | 706 | !defined(PNG_NO_READ_ANCILLARY_CHUNKS) |
| | 707 | # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
| | 708 | #endif |
| | 709 | |
| | 710 | #if defined(PNG_WRITE_SUPPORTED) && \ |
| | 711 | !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
| | 712 | !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) |
| | 713 | # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
| | 714 | #endif |
| | 715 | |
| | 716 | #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
| | 717 | |
| | 718 | #ifdef PNG_NO_READ_TEXT |
| | 719 | # define PNG_NO_READ_iTXt |
| | 720 | # define PNG_NO_READ_tEXt |
| | 721 | # define PNG_NO_READ_zTXt |
| | 722 | #endif |
| | 723 | #ifndef PNG_NO_READ_bKGD |
| | 724 | # define PNG_READ_bKGD_SUPPORTED |
| | 725 | # define PNG_bKGD_SUPPORTED |
| | 726 | #endif |
| | 727 | #ifndef PNG_NO_READ_cHRM |
| | 728 | # define PNG_READ_cHRM_SUPPORTED |
| | 729 | # define PNG_cHRM_SUPPORTED |
| | 730 | #endif |
| | 731 | #ifndef PNG_NO_READ_gAMA |
| | 732 | # define PNG_READ_gAMA_SUPPORTED |
| | 733 | # define PNG_gAMA_SUPPORTED |
| | 734 | #endif |
| | 735 | #ifndef PNG_NO_READ_hIST |
| | 736 | # define PNG_READ_hIST_SUPPORTED |
| | 737 | # define PNG_hIST_SUPPORTED |
| | 738 | #endif |
| | 739 | #ifndef PNG_NO_READ_iCCP |
| | 740 | # define PNG_READ_iCCP_SUPPORTED |
| | 741 | # define PNG_iCCP_SUPPORTED |
| | 742 | #endif |
| | 743 | #ifndef PNG_NO_READ_iTXt |
| | 744 | # ifndef PNG_READ_iTXt_SUPPORTED |
| | 745 | # define PNG_READ_iTXt_SUPPORTED |
| | 746 | # endif |
| | 747 | # ifndef PNG_iTXt_SUPPORTED |
| | 748 | # define PNG_iTXt_SUPPORTED |
| | 749 | # endif |
| | 750 | #endif |
| | 751 | #ifndef PNG_NO_READ_oFFs |
| | 752 | # define PNG_READ_oFFs_SUPPORTED |
| | 753 | # define PNG_oFFs_SUPPORTED |
| | 754 | #endif |
| | 755 | #ifndef PNG_NO_READ_pCAL |
| | 756 | # define PNG_READ_pCAL_SUPPORTED |
| | 757 | # define PNG_pCAL_SUPPORTED |
| | 758 | #endif |
| | 759 | #ifndef PNG_NO_READ_sCAL |
| | 760 | # define PNG_READ_sCAL_SUPPORTED |
| | 761 | # define PNG_sCAL_SUPPORTED |
| | 762 | #endif |
| | 763 | #ifndef PNG_NO_READ_pHYs |
| | 764 | # define PNG_READ_pHYs_SUPPORTED |
| | 765 | # define PNG_pHYs_SUPPORTED |
| | 766 | #endif |
| | 767 | #ifndef PNG_NO_READ_sBIT |
| | 768 | # define PNG_READ_sBIT_SUPPORTED |
| | 769 | # define PNG_sBIT_SUPPORTED |
| | 770 | #endif |
| | 771 | #ifndef PNG_NO_READ_sPLT |
| | 772 | # define PNG_READ_sPLT_SUPPORTED |
| | 773 | # define PNG_sPLT_SUPPORTED |
| | 774 | #endif |
| | 775 | #ifndef PNG_NO_READ_sRGB |
| | 776 | # define PNG_READ_sRGB_SUPPORTED |
| | 777 | # define PNG_sRGB_SUPPORTED |
| | 778 | #endif |
| | 779 | #ifndef PNG_NO_READ_tEXt |
| | 780 | # define PNG_READ_tEXt_SUPPORTED |
| | 781 | # define PNG_tEXt_SUPPORTED |
| | 782 | #endif |
| | 783 | #ifndef PNG_NO_READ_tIME |
| | 784 | # define PNG_READ_tIME_SUPPORTED |
| | 785 | # define PNG_tIME_SUPPORTED |
| | 786 | #endif |
| | 787 | #ifndef PNG_NO_READ_tRNS |
| | 788 | # define PNG_READ_tRNS_SUPPORTED |
| | 789 | # define PNG_tRNS_SUPPORTED |
| | 790 | #endif |
| | 791 | #ifndef PNG_NO_READ_zTXt |
| | 792 | # define PNG_READ_zTXt_SUPPORTED |
| | 793 | # define PNG_zTXt_SUPPORTED |
| | 794 | #endif |
| | 795 | #ifndef PNG_NO_READ_UNKNOWN_CHUNKS |
| | 796 | # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| | 797 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 798 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 799 | # endif |
| | 800 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN |
| | 801 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 802 | # endif |
| | 803 | #endif |
| | 804 | #if !defined(PNG_NO_READ_USER_CHUNKS) && \ |
| | 805 | defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
| | 806 | # define PNG_READ_USER_CHUNKS_SUPPORTED |
| | 807 | # define PNG_USER_CHUNKS_SUPPORTED |
| | 808 | # ifdef PNG_NO_READ_UNKNOWN_CHUNKS |
| | 809 | # undef PNG_NO_READ_UNKNOWN_CHUNKS |
| | 810 | # endif |
| | 811 | # ifdef PNG_NO_HANDLE_AS_UNKNOWN |
| | 812 | # undef PNG_NO_HANDLE_AS_UNKNOWN |
| | 813 | # endif |
| | 814 | #endif |
| | 815 | #ifndef PNG_NO_READ_OPT_PLTE |
| | 816 | # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ |
| | 817 | #endif /* optional PLTE chunk in RGB and RGBA images */ |
| | 818 | #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ |
| | 819 | defined(PNG_READ_zTXt_SUPPORTED) |
| | 820 | # define PNG_READ_TEXT_SUPPORTED |
| | 821 | # define PNG_TEXT_SUPPORTED |
| | 822 | #endif |
| | 823 | |
| | 824 | #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ |
| | 825 | |
| | 826 | #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
| | 827 | |
| | 828 | #ifdef PNG_NO_WRITE_TEXT |
| | 829 | # define PNG_NO_WRITE_iTXt |
| | 830 | # define PNG_NO_WRITE_tEXt |
| | 831 | # define PNG_NO_WRITE_zTXt |
| | 832 | #endif |
| | 833 | #ifndef PNG_NO_WRITE_bKGD |
| | 834 | # define PNG_WRITE_bKGD_SUPPORTED |
| | 835 | # ifndef PNG_bKGD_SUPPORTED |
| | 836 | # define PNG_bKGD_SUPPORTED |
| | 837 | # endif |
| | 838 | #endif |
| | 839 | #ifndef PNG_NO_WRITE_cHRM |
| | 840 | # define PNG_WRITE_cHRM_SUPPORTED |
| | 841 | # ifndef PNG_cHRM_SUPPORTED |
| | 842 | # define PNG_cHRM_SUPPORTED |
| | 843 | # endif |
| | 844 | #endif |
| | 845 | #ifndef PNG_NO_WRITE_gAMA |
| | 846 | # define PNG_WRITE_gAMA_SUPPORTED |
| | 847 | # ifndef PNG_gAMA_SUPPORTED |
| | 848 | # define PNG_gAMA_SUPPORTED |
| | 849 | # endif |
| | 850 | #endif |
| | 851 | #ifndef PNG_NO_WRITE_hIST |
| | 852 | # define PNG_WRITE_hIST_SUPPORTED |
| | 853 | # ifndef PNG_hIST_SUPPORTED |
| | 854 | # define PNG_hIST_SUPPORTED |
| | 855 | # endif |
| | 856 | #endif |
| | 857 | #ifndef PNG_NO_WRITE_iCCP |
| | 858 | # define PNG_WRITE_iCCP_SUPPORTED |
| | 859 | # ifndef PNG_iCCP_SUPPORTED |
| | 860 | # define PNG_iCCP_SUPPORTED |
| | 861 | # endif |
| | 862 | #endif |
| | 863 | #ifndef PNG_NO_WRITE_iTXt |
| | 864 | # ifndef PNG_WRITE_iTXt_SUPPORTED |
| | 865 | # define PNG_WRITE_iTXt_SUPPORTED |
| | 866 | # endif |
| | 867 | # ifndef PNG_iTXt_SUPPORTED |
| | 868 | # define PNG_iTXt_SUPPORTED |
| | 869 | # endif |
| | 870 | #endif |
| | 871 | #ifndef PNG_NO_WRITE_oFFs |
| | 872 | # define PNG_WRITE_oFFs_SUPPORTED |
| | 873 | # ifndef PNG_oFFs_SUPPORTED |
| | 874 | # define PNG_oFFs_SUPPORTED |
| | 875 | # endif |
| | 876 | #endif |
| | 877 | #ifndef PNG_NO_WRITE_pCAL |
| | 878 | # define PNG_WRITE_pCAL_SUPPORTED |
| | 879 | # ifndef PNG_pCAL_SUPPORTED |
| | 880 | # define PNG_pCAL_SUPPORTED |
| | 881 | # endif |
| | 882 | #endif |
| | 883 | #ifndef PNG_NO_WRITE_sCAL |
| | 884 | # define PNG_WRITE_sCAL_SUPPORTED |
| | 885 | # ifndef PNG_sCAL_SUPPORTED |
| | 886 | # define PNG_sCAL_SUPPORTED |
| | 887 | # endif |
| | 888 | #endif |
| | 889 | #ifndef PNG_NO_WRITE_pHYs |
| | 890 | # define PNG_WRITE_pHYs_SUPPORTED |
| | 891 | # ifndef PNG_pHYs_SUPPORTED |
| | 892 | # define PNG_pHYs_SUPPORTED |
| | 893 | # endif |
| | 894 | #endif |
| | 895 | #ifndef PNG_NO_WRITE_sBIT |
| | 896 | # define PNG_WRITE_sBIT_SUPPORTED |
| | 897 | # ifndef PNG_sBIT_SUPPORTED |
| | 898 | # define PNG_sBIT_SUPPORTED |
| | 899 | # endif |
| | 900 | #endif |
| | 901 | #ifndef PNG_NO_WRITE_sPLT |
| | 902 | # define PNG_WRITE_sPLT_SUPPORTED |
| | 903 | # ifndef PNG_sPLT_SUPPORTED |
| | 904 | # define PNG_sPLT_SUPPORTED |
| | 905 | # endif |
| | 906 | #endif |
| | 907 | #ifndef PNG_NO_WRITE_sRGB |
| | 908 | # define PNG_WRITE_sRGB_SUPPORTED |
| | 909 | # ifndef PNG_sRGB_SUPPORTED |
| | 910 | # define PNG_sRGB_SUPPORTED |
| | 911 | # endif |
| | 912 | #endif |
| | 913 | #ifndef PNG_NO_WRITE_tEXt |
| | 914 | # define PNG_WRITE_tEXt_SUPPORTED |
| | 915 | # ifndef PNG_tEXt_SUPPORTED |
| | 916 | # define PNG_tEXt_SUPPORTED |
| | 917 | # endif |
| | 918 | #endif |
| | 919 | #ifndef PNG_NO_WRITE_tIME |
| | 920 | # define PNG_WRITE_tIME_SUPPORTED |
| | 921 | # ifndef PNG_tIME_SUPPORTED |
| | 922 | # define PNG_tIME_SUPPORTED |
| | 923 | # endif |
| | 924 | #endif |
| | 925 | #ifndef PNG_NO_WRITE_tRNS |
| | 926 | # define PNG_WRITE_tRNS_SUPPORTED |
| | 927 | # ifndef PNG_tRNS_SUPPORTED |
| | 928 | # define PNG_tRNS_SUPPORTED |
| | 929 | # endif |
| | 930 | #endif |
| | 931 | #ifndef PNG_NO_WRITE_zTXt |
| | 932 | # define PNG_WRITE_zTXt_SUPPORTED |
| | 933 | # ifndef PNG_zTXt_SUPPORTED |
| | 934 | # define PNG_zTXt_SUPPORTED |
| | 935 | # endif |
| | 936 | #endif |
| | 937 | #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS |
| | 938 | # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
| | 939 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 940 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED |
| | 941 | # endif |
| | 942 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN |
| | 943 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 944 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| | 945 | # endif |
| | 946 | # endif |
| | 947 | #endif |
| | 948 | #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ |
| | 949 | defined(PNG_WRITE_zTXt_SUPPORTED) |
| | 950 | # define PNG_WRITE_TEXT_SUPPORTED |
| | 951 | # ifndef PNG_TEXT_SUPPORTED |
| | 952 | # define PNG_TEXT_SUPPORTED |
| | 953 | # endif |
| | 954 | #endif |
| | 955 | |
| | 956 | #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ |
| | 957 | |
| | 958 | /* Turn this off to disable png_read_png() and |
| | 959 | * png_write_png() and leave the row_pointers member |
| | 960 | * out of the info structure. |
| | 961 | */ |
| | 962 | #ifndef PNG_NO_INFO_IMAGE |
| | 963 | # define PNG_INFO_IMAGE_SUPPORTED |
| | 964 | #endif |
| | 965 | |
| | 966 | /* need the time information for reading tIME chunks */ |
| | 967 | #if defined(PNG_tIME_SUPPORTED) |
| | 968 | # if !defined(_WIN32_WCE) |
| | 969 | /* "time.h" functions are not supported on WindowsCE */ |
| | 970 | # include <time.h> |
| | 971 | # endif |
| | 972 | #endif |
| | 973 | |
| | 974 | /* Some typedefs to get us started. These should be safe on most of the |
| | 975 | * common platforms. The typedefs should be at least as large as the |
| | 976 | * numbers suggest (a png_uint_32 must be at least 32 bits long), but they |
| | 977 | * don't have to be exactly that size. Some compilers dislike passing |
| | 978 | * unsigned shorts as function parameters, so you may be better off using |
| | 979 | * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may |
| | 980 | * want to have unsigned int for png_uint_32 instead of unsigned long. |
| | 981 | */ |
| | 982 | |
| | 983 | typedef unsigned long png_uint_32; |
| | 984 | typedef long png_int_32; |
| | 985 | typedef unsigned short png_uint_16; |
| | 986 | typedef short png_int_16; |
| | 987 | typedef unsigned char png_byte; |
| | 988 | |
| | 989 | /* This is usually size_t. It is typedef'ed just in case you need it to |
| | 990 | change (I'm not sure if you will or not, so I thought I'd be safe) */ |
| | 991 | typedef size_t png_size_t; |
| | 992 | |
| | 993 | /* The following is needed for medium model support. It cannot be in the |
| | 994 | * PNG_INTERNAL section. Needs modification for other compilers besides |
| | 995 | * MSC. Model independent support declares all arrays and pointers to be |
| | 996 | * large using the far keyword. The zlib version used must also support |
| | 997 | * model independent data. As of version zlib 1.0.4, the necessary changes |
| | 998 | * have been made in zlib. The USE_FAR_KEYWORD define triggers other |
| | 999 | * changes that are needed. (Tim Wegner) |
| | 1000 | */ |
| | 1001 | |
| | 1002 | /* Separate compiler dependencies (problem here is that zlib.h always |
| | 1003 | defines FAR. (SJT) */ |
| | 1004 | #ifdef __BORLANDC__ |
| | 1005 | # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) |
| | 1006 | # define LDATA 1 |
| | 1007 | # else |
| | 1008 | # define LDATA 0 |
| | 1009 | # endif |
| | 1010 | /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ |
| | 1011 | # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) |
| | 1012 | # define PNG_MAX_MALLOC_64K |
| | 1013 | # if (LDATA != 1) |
| | 1014 | # ifndef FAR |
| | 1015 | # define FAR __far |
| | 1016 | # endif |
| | 1017 | # define USE_FAR_KEYWORD |
| | 1018 | # endif /* LDATA != 1 */ |
| | 1019 | /* Possibly useful for moving data out of default segment. |
| | 1020 | * Uncomment it if you want. Could also define FARDATA as |
| | 1021 | * const if your compiler supports it. (SJT) |
| | 1022 | # define FARDATA FAR |
| | 1023 | */ |
| | 1024 | # endif /* __WIN32__, __FLAT__, __CYGWIN__ */ |
| | 1025 | #endif /* __BORLANDC__ */ |
| | 1026 | |
| | 1027 | |
| | 1028 | /* Suggest testing for specific compiler first before testing for |
| | 1029 | * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, |
| | 1030 | * making reliance oncertain keywords suspect. (SJT) |
| | 1031 | */ |
| | 1032 | |
| | 1033 | /* MSC Medium model */ |
| | 1034 | #if defined(FAR) |
| | 1035 | # if defined(M_I86MM) |
| | 1036 | # define USE_FAR_KEYWORD |
| | 1037 | # define FARDATA FAR |
| | 1038 | # include <dos.h> |
| | 1039 | # endif |
| | 1040 | #endif |
| | 1041 | |
| | 1042 | /* SJT: default case */ |
| | 1043 | #ifndef FAR |
| | 1044 | # define FAR |
| | 1045 | #endif |
| | 1046 | |
| | 1047 | /* At this point FAR is always defined */ |
| | 1048 | #ifndef FARDATA |
| | 1049 | # define FARDATA |
| | 1050 | #endif |
| | 1051 | |
| | 1052 | /* Typedef for floating-point numbers that are converted |
| | 1053 | to fixed-point with a multiple of 100,000, e.g., int_gamma */ |
| | 1054 | typedef png_int_32 png_fixed_point; |
| | 1055 | |
| | 1056 | /* Add typedefs for pointers */ |
| | 1057 | typedef void FAR * png_voidp; |
| | 1058 | typedef png_byte FAR * png_bytep; |
| | 1059 | typedef png_uint_32 FAR * png_uint_32p; |
| | 1060 | typedef png_int_32 FAR * png_int_32p; |
| | 1061 | typedef png_uint_16 FAR * png_uint_16p; |
| | 1062 | typedef png_int_16 FAR * png_int_16p; |
| | 1063 | typedef PNG_CONST char FAR * png_const_charp; |
| | 1064 | typedef char FAR * png_charp; |
| | 1065 | typedef png_fixed_point FAR * png_fixed_point_p; |
| | 1066 | |
| | 1067 | #ifndef PNG_NO_STDIO |
| | 1068 | #if defined(_WIN32_WCE) |
| | 1069 | typedef HANDLE png_FILE_p; |
| | 1070 | #else |
| | 1071 | typedef FILE * png_FILE_p; |
| | 1072 | #endif |
| | 1073 | #endif |
| | 1074 | |
| | 1075 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
| | 1076 | typedef double FAR * png_doublep; |
| | 1077 | #endif |
| | 1078 | |
| | 1079 | /* Pointers to pointers; i.e. arrays */ |
| | 1080 | typedef png_byte FAR * FAR * png_bytepp; |
| | 1081 | typedef png_uint_32 FAR * FAR * png_uint_32pp; |
| | 1082 | typedef png_int_32 FAR * FAR * png_int_32pp; |
| | 1083 | typedef png_uint_16 FAR * FAR * png_uint_16pp; |
| | 1084 | typedef png_int_16 FAR * FAR * png_int_16pp; |
| | 1085 | typedef PNG_CONST char FAR * FAR * png_const_charpp; |
| | 1086 | typedef char FAR * FAR * png_charpp; |
| | 1087 | typedef png_fixed_point FAR * FAR * png_fixed_point_pp; |
| | 1088 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
| | 1089 | typedef double FAR * FAR * png_doublepp; |
| | 1090 | #endif |
| | 1091 | |
| | 1092 | /* Pointers to pointers to pointers; i.e., pointer to array */ |
| | 1093 | typedef char FAR * FAR * FAR * png_charppp; |
| | 1094 | |
| | 1095 | /* libpng typedefs for types in zlib. If zlib changes |
| | 1096 | * or another compression library is used, then change these. |
| | 1097 | * Eliminates need to change all the source files. |
| | 1098 | */ |
| | 1099 | typedef charf * png_zcharp; |
| | 1100 | typedef charf * FAR * png_zcharpp; |
| | 1101 | typedef z_stream FAR * png_zstreamp; |
| | 1102 | |
| | 1103 | /* |
| | 1104 | * Define PNG_BUILD_DLL if the module being built is a Windows |
| | 1105 | * LIBPNG DLL. |
| | 1106 | * |
| | 1107 | * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. |
| | 1108 | * It is equivalent to Microsoft predefined macro _DLL that is |
| | 1109 | * automatically defined when you compile using the share |
| | 1110 | * version of the CRT (C Run-Time library) |
| | 1111 | * |
| | 1112 | * The cygwin mods make this behavior a little different: |
| | 1113 | * Define PNG_BUILD_DLL if you are building a dll for use with cygwin |
| | 1114 | * Define PNG_STATIC if you are building a static library for use with cygwin, |
| | 1115 | * -or- if you are building an application that you want to link to the |
| | 1116 | * static library. |
| | 1117 | * PNG_USE_DLL is defined by default (no user action needed) unless one of |
| | 1118 | * the other flags is defined. |
| | 1119 | */ |
| | 1120 | |
| | 1121 | #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) |
| | 1122 | # define PNG_DLL |
| | 1123 | #endif |
| | 1124 | /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. |
| | 1125 | * When building a static lib, default to no GLOBAL ARRAYS, but allow |
| | 1126 | * command-line override |
| | 1127 | */ |
| | 1128 | #if defined(__CYGWIN__) |
| | 1129 | # if !defined(PNG_STATIC) |
| | 1130 | # if defined(PNG_USE_GLOBAL_ARRAYS) |
| | 1131 | # undef PNG_USE_GLOBAL_ARRAYS |
| | 1132 | # endif |
| | 1133 | # if !defined(PNG_USE_LOCAL_ARRAYS) |
| | 1134 | # define PNG_USE_LOCAL_ARRAYS |
| | 1135 | # endif |
| | 1136 | # else |
| | 1137 | # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) |
| | 1138 | # if defined(PNG_USE_GLOBAL_ARRAYS) |
| | 1139 | # undef PNG_USE_GLOBAL_ARRAYS |
| | 1140 | # endif |
| | 1141 | # endif |
| | 1142 | # endif |
| | 1143 | # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) |
| | 1144 | # define PNG_USE_LOCAL_ARRAYS |
| | 1145 | # endif |
| | 1146 | #endif |
| | 1147 | |
| | 1148 | /* Do not use global arrays (helps with building DLL's) |
| | 1149 | * They are no longer used in libpng itself, since version 1.0.5c, |
| | 1150 | * but might be required for some pre-1.0.5c applications. |
| | 1151 | */ |
| | 1152 | #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) |
| | 1153 | # if defined(PNG_NO_GLOBAL_ARRAYS) || (defined(__GNUC__) && defined(PNG_DLL)) |
| | 1154 | # define PNG_USE_LOCAL_ARRAYS |
| | 1155 | # else |
| | 1156 | # define PNG_USE_GLOBAL_ARRAYS |
| | 1157 | # endif |
| | 1158 | #endif |
| | 1159 | |
| | 1160 | #if defined(__CYGWIN__) |
| | 1161 | # undef PNGAPI |
| | 1162 | # define PNGAPI __cdecl |
| | 1163 | # undef PNG_IMPEXP |
| | 1164 | # define PNG_IMPEXP |
| | 1165 | #endif |
| | 1166 | |
| | 1167 | /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", |
| | 1168 | * you may get warnings regarding the linkage of png_zalloc and png_zfree. |
| | 1169 | * Don't ignore those warnings; you must also reset the default calling |
| | 1170 | * convention in your compiler to match your PNGAPI, and you must build |
| | 1171 | * zlib and your applications the same way you build libpng. |
| | 1172 | */ |
| | 1173 | |
| | 1174 | #ifndef PNGAPI |
| | 1175 | |
| | 1176 | #if defined(__MINGW32__) && !defined(PNG_MODULEDEF) |
| | 1177 | # ifndef PNG_NO_MODULEDEF |
| | 1178 | # define PNG_NO_MODULEDEF |
| | 1179 | # endif |
| | 1180 | #endif |
| | 1181 | |
| | 1182 | #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) |
| | 1183 | # define PNG_IMPEXP |
| | 1184 | #endif |
| | 1185 | |
| | 1186 | #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ |
| | 1187 | (( defined(_Windows) || defined(_WINDOWS) || \ |
| | 1188 | defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) |
| | 1189 | |
| | 1190 | # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) |
| | 1191 | # define PNGAPI __cdecl |
| | 1192 | # else |
| | 1193 | # define PNGAPI _cdecl |
| | 1194 | # endif |
| | 1195 | |
| | 1196 | # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ |
| | 1197 | 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) |
| | 1198 | # define PNG_IMPEXP |
| | 1199 | # endif |
| | 1200 | |
| | 1201 | # if !defined(PNG_IMPEXP) |
| | 1202 | |
| | 1203 | # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol |
| | 1204 | # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol |
| | 1205 | |
| | 1206 | /* Borland/Microsoft */ |
| | 1207 | # if defined(_MSC_VER) || defined(__BORLANDC__) |
| | 1208 | # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) |
| | 1209 | # define PNG_EXPORT PNG_EXPORT_TYPE1 |
| | 1210 | # else |
| | 1211 | # define PNG_EXPORT PNG_EXPORT_TYPE2 |
| | 1212 | # if defined(PNG_BUILD_DLL) |
| | 1213 | # define PNG_IMPEXP __export |
| | 1214 | # else |
| | 1215 | # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in |
| | 1216 | VC++ */ |
| | 1217 | # endif /* Exists in Borland C++ for |
| | 1218 | C++ classes (== huge) */ |
| | 1219 | # endif |
| | 1220 | # endif |
| | 1221 | |
| | 1222 | # if !defined(PNG_IMPEXP) |
| | 1223 | # if defined(PNG_BUILD_DLL) |
| | 1224 | # define PNG_IMPEXP __declspec(dllexport) |
| | 1225 | # else |
| | 1226 | # define PNG_IMPEXP __declspec(dllimport) |
| | 1227 | # endif |
| | 1228 | # endif |
| | 1229 | # endif /* PNG_IMPEXP */ |
| | 1230 | #else /* !(DLL || non-cygwin WINDOWS) */ |
| | 1231 | # if (defined(__IBMC__) || defined(IBMCPP__)) && defined(__OS2__) |
| | 1232 | # define PNGAPI _System |
| | 1233 | # define PNG_IMPEXP |
| | 1234 | # else |
| | 1235 | # if 0 /* ... other platforms, with other meanings */ |
| | 1236 | # else |
| | 1237 | # define PNGAPI |
| | 1238 | # define PNG_IMPEXP |
| | 1239 | # endif |
| | 1240 | # endif |
| | 1241 | #endif |
| | 1242 | #endif |
| | 1243 | |
| | 1244 | #if defined(__VISAGECPP__) |
| | 1245 | /* I don't compile with this _System linkage for wxWindows */ |
| | 1246 | # ifdef PNGAPI |
| | 1247 | # undef PNGAPI |
| | 1248 | # endif |
| | 1249 | # define PNGAPI _Optlink |
| | 1250 | # define PNG_IMPEXP |
| | 1251 | # define PNG_USE_LOCAL_ARRAYS |
| | 1252 | # ifdef PNG_USE_GLOBAL_ARRAYS |
| | 1253 | # undef PNG_USE_GLOBAL_ARRAYS |
| | 1254 | # endif |
| | 1255 | extern const char png_libpng_ver[18]; |
| | 1256 | #endif |
| | 1257 | |
| | 1258 | #ifndef PNGAPI |
| | 1259 | # define PNGAPI |
| | 1260 | #endif |
| | 1261 | #ifndef PNG_IMPEXP |
| | 1262 | # define PNG_IMPEXP |
| | 1263 | #endif |
| | 1264 | |
| | 1265 | #ifndef PNG_EXPORT |
| | 1266 | # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol |
| | 1267 | #endif |
| | 1268 | |
| | 1269 | #ifdef PNG_USE_GLOBAL_ARRAYS |
| | 1270 | # ifndef PNG_EXPORT_VAR |
| | 1271 | # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type |
| | 1272 | # endif |
| | 1273 | #endif |
| | 1274 | |
| | 1275 | /* User may want to use these so they are not in PNG_INTERNAL. Any library |
| | 1276 | * functions that are passed far data must be model independent. |
| | 1277 | */ |
| | 1278 | |
| | 1279 | #ifndef PNG_ABORT |
| | 1280 | # define PNG_ABORT() abort() |
| | 1281 | #endif |
| | 1282 | |
| | 1283 | #ifdef PNG_SETJMP_SUPPORTED |
| | 1284 | # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) |
| | 1285 | #else |
| | 1286 | # define png_jmpbuf(png_ptr) \ |
| | 1287 | (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) |
| | 1288 | #endif |
| | 1289 | |
| | 1290 | #if defined(USE_FAR_KEYWORD) /* memory model independent fns */ |
| | 1291 | /* use this to make far-to-near assignments */ |
| | 1292 | # define CHECK 1 |
| | 1293 | # define NOCHECK 0 |
| | 1294 | # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) |
| | 1295 | # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) |
| | 1296 | # define png_strcpy _fstrcpy |
| | 1297 | # define png_strlen _fstrlen |
| | 1298 | # define png_memcmp _fmemcmp /* SJT: added */ |
| | 1299 | # define png_memcpy _fmemcpy |
| | 1300 | # define png_memset _fmemset |
| | 1301 | #else /* use the usual functions */ |
| | 1302 | # define CVT_PTR(ptr) (ptr) |
| | 1303 | # define CVT_PTR_NOCHECK(ptr) (ptr) |
| | 1304 | # define png_strcpy strcpy |
| | 1305 | # define png_strlen strlen |
| | 1306 | # define png_memcmp memcmp /* SJT: added */ |
| | 1307 | # define png_memcpy memcpy |
| | 1308 | # define png_memset memset |
| | 1309 | #endif |
| | 1310 | /* End of memory model independent support */ |
| | 1311 | |
| | 1312 | /* Just a little check that someone hasn't tried to define something |
| | 1313 | * contradictory. |
| | 1314 | */ |
| | 1315 | #if (PNG_ZBUF_SIZE > 65536) && defined(PNG_MAX_MALLOC_64K) |
| | 1316 | # undef PNG_ZBUF_SIZE |
| | 1317 | # define PNG_ZBUF_SIZE 65536 |
| | 1318 | #endif |
| | 1319 | |
| | 1320 | #ifdef PNG_READ_SUPPORTED |
| | 1321 | /* Prior to libpng-1.0.9, this block was in pngasmrd.h */ |
| | 1322 | #if defined(PNG_INTERNAL) |
| | 1323 | |
| | 1324 | /* These are the default thresholds before the MMX code kicks in; if either |
| | 1325 | * rowbytes or bitdepth is below the threshold, plain C code is used. These |
| | 1326 | * can be overridden at runtime via the png_set_mmx_thresholds() call in |
| | 1327 | * libpng 1.2.0 and later. The values below were chosen by Intel. |
| | 1328 | */ |
| | 1329 | |
| | 1330 | #ifndef PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT |
| | 1331 | # define PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT 128 /* >= */ |
| | 1332 | #endif |
| | 1333 | #ifndef PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT |
| | 1334 | # define PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT 9 /* >= */ |
| | 1335 | #endif |
| | 1336 | |
| | 1337 | /* Set this in the makefile for VC++ on Pentium, not here. */ |
| | 1338 | /* Platform must be Pentium. Makefile must assemble and load pngvcrd.c . |
| | 1339 | * MMX will be detected at run time and used if present. |
| | 1340 | */ |
| | 1341 | #ifdef PNG_USE_PNGVCRD |
| | 1342 | # define PNG_HAVE_ASSEMBLER_COMBINE_ROW |
| | 1343 | # define PNG_HAVE_ASSEMBLER_READ_INTERLACE |
| | 1344 | # define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW |
| | 1345 | #endif |
| | 1346 | |
| | 1347 | /* Set this in the makefile for gcc/as on Pentium, not here. */ |
| | 1348 | /* Platform must be Pentium. Makefile must assemble and load pnggccrd.c . |
| | 1349 | * MMX will be detected at run time and used if present. |
| | 1350 | */ |
| | 1351 | #ifdef PNG_USE_PNGGCCRD |
| | 1352 | # define PNG_HAVE_ASSEMBLER_COMBINE_ROW |
| | 1353 | # define PNG_HAVE_ASSEMBLER_READ_INTERLACE |
| | 1354 | # define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW |
| | 1355 | #endif |
| | 1356 | /* - see pnggccrd.c for info about what is currently enabled */ |
| | 1357 | |
| | 1358 | #endif /* PNG_INTERNAL */ |
| | 1359 | #endif /* PNG_READ_SUPPORTED */ |
| | 1360 | |
| | 1361 | #endif /* PNGCONF_H */ |
| | 1362 | |
projects / wxWidgets.git / blame_incremental