/[pcsx2_0.9.7]/trunk/3rdparty/wxWidgets/src/png/pngconf.h
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Revision 31 - (show annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (10 years, 2 months ago) by william
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committing r3113 initial commit again...
1
2 /* pngconf.h - machine configurable file for libpng
3 *
4 * libpng version 1.2.39 - August 13, 2009
5 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
6 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
7 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
8 *
9 * This code is released under the libpng license.
10 * For conditions of distribution and use, see the disclaimer
11 * and license in png.h
12 */
13
14 /* Any machine specific code is near the front of this file, so if you
15 * are configuring libpng for a machine, you may want to read the section
16 * starting here down to where it starts to typedef png_color, png_text,
17 * and png_info.
18 */
19
20 #ifndef PNGCONF_H
21 #define PNGCONF_H
22
23 #define PNG_1_2_X
24
25 /*
26 * PNG_USER_CONFIG has to be defined on the compiler command line. This
27 * includes the resource compiler for Windows DLL configurations.
28 */
29 #ifdef PNG_USER_CONFIG
30 # ifndef PNG_USER_PRIVATEBUILD
31 # define PNG_USER_PRIVATEBUILD
32 # endif
33 #include "pngusr.h"
34 #endif
35
36 /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
37 #ifdef PNG_CONFIGURE_LIBPNG
38 #ifdef HAVE_CONFIG_H
39 #include "config.h"
40 #endif
41 #endif
42
43 /*
44 * Added at libpng-1.2.8
45 *
46 * If you create a private DLL you need to define in "pngusr.h" the followings:
47 * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
48 * the DLL was built>
49 * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
50 * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
51 * distinguish your DLL from those of the official release. These
52 * correspond to the trailing letters that come after the version
53 * number and must match your private DLL name>
54 * e.g. // private DLL "libpng13gx.dll"
55 * #define PNG_USER_DLLFNAME_POSTFIX "gx"
56 *
57 * The following macros are also at your disposal if you want to complete the
58 * DLL VERSIONINFO structure.
59 * - PNG_USER_VERSIONINFO_COMMENTS
60 * - PNG_USER_VERSIONINFO_COMPANYNAME
61 * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
62 */
63
64 #ifdef __STDC__
65 #ifdef SPECIALBUILD
66 # pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
67 are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
68 #endif
69
70 #ifdef PRIVATEBUILD
71 # pragma message("PRIVATEBUILD is deprecated.\
72 Use PNG_USER_PRIVATEBUILD instead.")
73 # define PNG_USER_PRIVATEBUILD PRIVATEBUILD
74 #endif
75 #endif /* __STDC__ */
76
77 #ifndef PNG_VERSION_INFO_ONLY
78
79 /* End of material added to libpng-1.2.8 */
80
81 /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
82 Restored at libpng-1.2.21 */
83 #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
84 !defined(PNG_WARN_UNINITIALIZED_ROW)
85 # define PNG_WARN_UNINITIALIZED_ROW 1
86 #endif
87 /* End of material added at libpng-1.2.19/1.2.21 */
88
89 /* This is the size of the compression buffer, and thus the size of
90 * an IDAT chunk. Make this whatever size you feel is best for your
91 * machine. One of these will be allocated per png_struct. When this
92 * is full, it writes the data to the disk, and does some other
93 * calculations. Making this an extremely small size will slow
94 * the library down, but you may want to experiment to determine
95 * where it becomes significant, if you are concerned with memory
96 * usage. Note that zlib allocates at least 32Kb also. For readers,
97 * this describes the size of the buffer available to read the data in.
98 * Unless this gets smaller than the size of a row (compressed),
99 * it should not make much difference how big this is.
100 */
101
102 #ifndef PNG_ZBUF_SIZE
103 # define PNG_ZBUF_SIZE 8192
104 #endif
105
106 /* Enable if you want a write-only libpng */
107
108 #ifndef PNG_NO_READ_SUPPORTED
109 # define PNG_READ_SUPPORTED
110 #endif
111
112 /* Enable if you want a read-only libpng */
113
114 #ifndef PNG_NO_WRITE_SUPPORTED
115 # define PNG_WRITE_SUPPORTED
116 #endif
117
118 /* Enabled by default in 1.2.0. You can disable this if you don't need to
119 support PNGs that are embedded in MNG datastreams */
120 #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
121 # ifndef PNG_MNG_FEATURES_SUPPORTED
122 # define PNG_MNG_FEATURES_SUPPORTED
123 # endif
124 #endif
125
126 #ifndef PNG_NO_FLOATING_POINT_SUPPORTED
127 # ifndef PNG_FLOATING_POINT_SUPPORTED
128 # define PNG_FLOATING_POINT_SUPPORTED
129 # endif
130 #endif
131
132 /* If you are running on a machine where you cannot allocate more
133 * than 64K of memory at once, uncomment this. While libpng will not
134 * normally need that much memory in a chunk (unless you load up a very
135 * large file), zlib needs to know how big of a chunk it can use, and
136 * libpng thus makes sure to check any memory allocation to verify it
137 * will fit into memory.
138 #define PNG_MAX_MALLOC_64K
139 */
140 #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
141 # define PNG_MAX_MALLOC_64K
142 #endif
143
144 /* Special munging to support doing things the 'cygwin' way:
145 * 'Normal' png-on-win32 defines/defaults:
146 * PNG_BUILD_DLL -- building dll
147 * PNG_USE_DLL -- building an application, linking to dll
148 * (no define) -- building static library, or building an
149 * application and linking to the static lib
150 * 'Cygwin' defines/defaults:
151 * PNG_BUILD_DLL -- (ignored) building the dll
152 * (no define) -- (ignored) building an application, linking to the dll
153 * PNG_STATIC -- (ignored) building the static lib, or building an
154 * application that links to the static lib.
155 * ALL_STATIC -- (ignored) building various static libs, or building an
156 * application that links to the static libs.
157 * Thus,
158 * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
159 * this bit of #ifdefs will define the 'correct' config variables based on
160 * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
161 * unnecessary.
162 *
163 * Also, the precedence order is:
164 * ALL_STATIC (since we can't #undef something outside our namespace)
165 * PNG_BUILD_DLL
166 * PNG_STATIC
167 * (nothing) == PNG_USE_DLL
168 *
169 * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
170 * of auto-import in binutils, we no longer need to worry about
171 * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
172 * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
173 * to __declspec() stuff. However, we DO need to worry about
174 * PNG_BUILD_DLL and PNG_STATIC because those change some defaults
175 * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
176 */
177 #if defined(__CYGWIN__)
178 # if defined(ALL_STATIC)
179 # if defined(PNG_BUILD_DLL)
180 # undef PNG_BUILD_DLL
181 # endif
182 # if defined(PNG_USE_DLL)
183 # undef PNG_USE_DLL
184 # endif
185 # if defined(PNG_DLL)
186 # undef PNG_DLL
187 # endif
188 # if !defined(PNG_STATIC)
189 # define PNG_STATIC
190 # endif
191 # else
192 # if defined (PNG_BUILD_DLL)
193 # if defined(PNG_STATIC)
194 # undef PNG_STATIC
195 # endif
196 # if defined(PNG_USE_DLL)
197 # undef PNG_USE_DLL
198 # endif
199 # if !defined(PNG_DLL)
200 # define PNG_DLL
201 # endif
202 # else
203 # if defined(PNG_STATIC)
204 # if defined(PNG_USE_DLL)
205 # undef PNG_USE_DLL
206 # endif
207 # if defined(PNG_DLL)
208 # undef PNG_DLL
209 # endif
210 # else
211 # if !defined(PNG_USE_DLL)
212 # define PNG_USE_DLL
213 # endif
214 # if !defined(PNG_DLL)
215 # define PNG_DLL
216 # endif
217 # endif
218 # endif
219 # endif
220 #endif
221
222 /* This protects us against compilers that run on a windowing system
223 * and thus don't have or would rather us not use the stdio types:
224 * stdin, stdout, and stderr. The only one currently used is stderr
225 * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
226 * prevent these from being compiled and used. #defining PNG_NO_STDIO
227 * will also prevent these, plus will prevent the entire set of stdio
228 * macros and functions (FILE *, printf, etc.) from being compiled and used,
229 * unless (PNG_DEBUG > 0) has been #defined.
230 *
231 * #define PNG_NO_CONSOLE_IO
232 * #define PNG_NO_STDIO
233 */
234
235 #if defined(_WIN32_WCE)
236 # include <windows.h>
237 /* Console I/O functions are not supported on WindowsCE */
238 # define PNG_NO_CONSOLE_IO
239 /* abort() may not be supported on some/all Windows CE platforms */
240 # define PNG_ABORT() exit(-1)
241 # ifdef PNG_DEBUG
242 # undef PNG_DEBUG
243 # endif
244 #endif
245
246 #ifdef PNG_BUILD_DLL
247 # ifndef PNG_CONSOLE_IO_SUPPORTED
248 # ifndef PNG_NO_CONSOLE_IO
249 # define PNG_NO_CONSOLE_IO
250 # endif
251 # endif
252 #endif
253
254 # ifdef PNG_NO_STDIO
255 # ifndef PNG_NO_CONSOLE_IO
256 # define PNG_NO_CONSOLE_IO
257 # endif
258 # ifdef PNG_DEBUG
259 # if (PNG_DEBUG > 0)
260 # include <stdio.h>
261 # endif
262 # endif
263 # else
264 # if !defined(_WIN32_WCE)
265 /* "stdio.h" functions are not supported on WindowsCE */
266 # include <stdio.h>
267 # endif
268 # endif
269
270 /* This macro protects us against machines that don't have function
271 * prototypes (ie K&R style headers). If your compiler does not handle
272 * function prototypes, define this macro and use the included ansi2knr.
273 * I've always been able to use _NO_PROTO as the indicator, but you may
274 * need to drag the empty declaration out in front of here, or change the
275 * ifdef to suit your own needs.
276 */
277 #ifndef PNGARG
278
279 #ifdef OF /* zlib prototype munger */
280 # define PNGARG(arglist) OF(arglist)
281 #else
282
283 #ifdef _NO_PROTO
284 # define PNGARG(arglist) ()
285 # ifndef PNG_TYPECAST_NULL
286 # define PNG_TYPECAST_NULL
287 # endif
288 #else
289 # define PNGARG(arglist) arglist
290 #endif /* _NO_PROTO */
291
292
293 #endif /* OF */
294
295 #endif /* PNGARG */
296
297 /* Try to determine if we are compiling on a Mac. Note that testing for
298 * just __MWERKS__ is not good enough, because the Codewarrior is now used
299 * on non-Mac platforms.
300 */
301 #ifndef MACOS
302 # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
303 defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
304 # define MACOS
305 # endif
306 #endif
307
308 /* enough people need this for various reasons to include it here */
309 #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
310 # include <sys/types.h>
311 #endif
312
313 #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
314 # define PNG_SETJMP_SUPPORTED
315 #endif
316
317 #ifdef PNG_SETJMP_SUPPORTED
318 /* This is an attempt to force a single setjmp behaviour on Linux. If
319 * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
320 *
321 * You can bypass this test if you know that your application uses exactly
322 * the same setjmp.h that was included when libpng was built. Only define
323 * PNG_SKIP_SETJMP_CHECK while building your application, prior to the
324 * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
325 * while building a separate libpng library for general use.
326 */
327
328 # ifndef PNG_SKIP_SETJMP_CHECK
329 # ifdef __linux__
330 # ifdef _BSD_SOURCE
331 # define PNG_SAVE_BSD_SOURCE
332 # undef _BSD_SOURCE
333 # endif
334 # ifdef _SETJMP_H
335 /* If you encounter a compiler error here, see the explanation
336 * near the end of INSTALL.
337 */
338 __pngconf.h__ in libpng already includes setjmp.h;
339 __dont__ include it again.;
340 # endif
341 # endif /* __linux__ */
342 # endif /* PNG_SKIP_SETJMP_CHECK */
343
344 /* include setjmp.h for error handling */
345 # include <setjmp.h>
346
347 # ifdef __linux__
348 # ifdef PNG_SAVE_BSD_SOURCE
349 # ifndef _BSD_SOURCE
350 # define _BSD_SOURCE
351 # endif
352 # undef PNG_SAVE_BSD_SOURCE
353 # endif
354 # endif /* __linux__ */
355 #endif /* PNG_SETJMP_SUPPORTED */
356
357 #ifdef BSD
358 # include <strings.h>
359 #else
360 # include <string.h>
361 #endif
362
363 /* Other defines for things like memory and the like can go here. */
364 #ifdef PNG_INTERNAL
365
366 #include <stdlib.h>
367
368 /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
369 * aren't usually used outside the library (as far as I know), so it is
370 * debatable if they should be exported at all. In the future, when it is
371 * possible to have run-time registry of chunk-handling functions, some of
372 * these will be made available again.
373 #define PNG_EXTERN extern
374 */
375 #define PNG_EXTERN
376
377 /* Other defines specific to compilers can go here. Try to keep
378 * them inside an appropriate ifdef/endif pair for portability.
379 */
380
381 #if defined(PNG_FLOATING_POINT_SUPPORTED)
382 # if defined(MACOS)
383 /* We need to check that <math.h> hasn't already been included earlier
384 * as it seems it doesn't agree with <fp.h>, yet we should really use
385 * <fp.h> if possible.
386 */
387 # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
388 # include <fp.h>
389 # endif
390 # else
391 # include <math.h>
392 # endif
393 # if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
394 /* Amiga SAS/C: We must include builtin FPU functions when compiling using
395 * MATH=68881
396 */
397 # include <m68881.h>
398 # endif
399 #endif
400
401 /* Codewarrior on NT has linking problems without this. */
402 #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
403 # define PNG_ALWAYS_EXTERN
404 #endif
405
406 /* This provides the non-ANSI (far) memory allocation routines. */
407 #if defined(__TURBOC__) && defined(__MSDOS__)
408 # include <mem.h>
409 # include <alloc.h>
410 #endif
411
412 /* I have no idea why is this necessary... */
413 #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
414 defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
415 # include <malloc.h>
416 #endif
417
418 /* This controls how fine the dithering gets. As this allocates
419 * a largish chunk of memory (32K), those who are not as concerned
420 * with dithering quality can decrease some or all of these.
421 */
422 #ifndef PNG_DITHER_RED_BITS
423 # define PNG_DITHER_RED_BITS 5
424 #endif
425 #ifndef PNG_DITHER_GREEN_BITS
426 # define PNG_DITHER_GREEN_BITS 5
427 #endif
428 #ifndef PNG_DITHER_BLUE_BITS
429 # define PNG_DITHER_BLUE_BITS 5
430 #endif
431
432 /* This controls how fine the gamma correction becomes when you
433 * are only interested in 8 bits anyway. Increasing this value
434 * results in more memory being used, and more pow() functions
435 * being called to fill in the gamma tables. Don't set this value
436 * less then 8, and even that may not work (I haven't tested it).
437 */
438
439 #ifndef PNG_MAX_GAMMA_8
440 # define PNG_MAX_GAMMA_8 11
441 #endif
442
443 /* This controls how much a difference in gamma we can tolerate before
444 * we actually start doing gamma conversion.
445 */
446 #ifndef PNG_GAMMA_THRESHOLD
447 # define PNG_GAMMA_THRESHOLD 0.05
448 #endif
449
450 #endif /* PNG_INTERNAL */
451
452 /* The following uses const char * instead of char * for error
453 * and warning message functions, so some compilers won't complain.
454 * If you do not want to use const, define PNG_NO_CONST here.
455 */
456
457 #ifndef PNG_NO_CONST
458 # define PNG_CONST const
459 #else
460 # define PNG_CONST
461 #endif
462
463 /* The following defines give you the ability to remove code from the
464 * library that you will not be using. I wish I could figure out how to
465 * automate this, but I can't do that without making it seriously hard
466 * on the users. So if you are not using an ability, change the #define
467 * to and #undef, and that part of the library will not be compiled. If
468 * your linker can't find a function, you may want to make sure the
469 * ability is defined here. Some of these depend upon some others being
470 * defined. I haven't figured out all the interactions here, so you may
471 * have to experiment awhile to get everything to compile. If you are
472 * creating or using a shared library, you probably shouldn't touch this,
473 * as it will affect the size of the structures, and this will cause bad
474 * things to happen if the library and/or application ever change.
475 */
476
477 /* Any features you will not be using can be undef'ed here */
478
479 /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
480 * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
481 * on the compile line, then pick and choose which ones to define without
482 * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
483 * if you only want to have a png-compliant reader/writer but don't need
484 * any of the extra transformations. This saves about 80 kbytes in a
485 * typical installation of the library. (PNG_NO_* form added in version
486 * 1.0.1c, for consistency)
487 */
488
489 /* The size of the png_text structure changed in libpng-1.0.6 when
490 * iTXt support was added. iTXt support was turned off by default through
491 * libpng-1.2.x, to support old apps that malloc the png_text structure
492 * instead of calling png_set_text() and letting libpng malloc it. It
493 * will be turned on by default in libpng-1.4.0.
494 */
495
496 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
497 # ifndef PNG_NO_iTXt_SUPPORTED
498 # define PNG_NO_iTXt_SUPPORTED
499 # endif
500 # ifndef PNG_NO_READ_iTXt
501 # define PNG_NO_READ_iTXt
502 # endif
503 # ifndef PNG_NO_WRITE_iTXt
504 # define PNG_NO_WRITE_iTXt
505 # endif
506 #endif
507
508 #if !defined(PNG_NO_iTXt_SUPPORTED)
509 # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
510 # define PNG_READ_iTXt
511 # endif
512 # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
513 # define PNG_WRITE_iTXt
514 # endif
515 #endif
516
517 /* The following support, added after version 1.0.0, can be turned off here en
518 * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
519 * with old applications that require the length of png_struct and png_info
520 * to remain unchanged.
521 */
522
523 #ifdef PNG_LEGACY_SUPPORTED
524 # define PNG_NO_FREE_ME
525 # define PNG_NO_READ_UNKNOWN_CHUNKS
526 # define PNG_NO_WRITE_UNKNOWN_CHUNKS
527 # define PNG_NO_HANDLE_AS_UNKNOWN
528 # define PNG_NO_READ_USER_CHUNKS
529 # define PNG_NO_READ_iCCP
530 # define PNG_NO_WRITE_iCCP
531 # define PNG_NO_READ_iTXt
532 # define PNG_NO_WRITE_iTXt
533 # define PNG_NO_READ_sCAL
534 # define PNG_NO_WRITE_sCAL
535 # define PNG_NO_READ_sPLT
536 # define PNG_NO_WRITE_sPLT
537 # define PNG_NO_INFO_IMAGE
538 # define PNG_NO_READ_RGB_TO_GRAY
539 # define PNG_NO_READ_USER_TRANSFORM
540 # define PNG_NO_WRITE_USER_TRANSFORM
541 # define PNG_NO_USER_MEM
542 # define PNG_NO_READ_EMPTY_PLTE
543 # define PNG_NO_MNG_FEATURES
544 # define PNG_NO_FIXED_POINT_SUPPORTED
545 #endif
546
547 /* Ignore attempt to turn off both floating and fixed point support */
548 #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
549 !defined(PNG_NO_FIXED_POINT_SUPPORTED)
550 # define PNG_FIXED_POINT_SUPPORTED
551 #endif
552
553 #ifndef PNG_NO_FREE_ME
554 # define PNG_FREE_ME_SUPPORTED
555 #endif
556
557 #ifdef PNG_READ_SUPPORTED
558
559 #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
560 !defined(PNG_NO_READ_TRANSFORMS)
561 # define PNG_READ_TRANSFORMS_SUPPORTED
562 #endif
563
564 #ifdef PNG_READ_TRANSFORMS_SUPPORTED
565 # ifndef PNG_NO_READ_EXPAND
566 # define PNG_READ_EXPAND_SUPPORTED
567 # endif
568 # ifndef PNG_NO_READ_SHIFT
569 # define PNG_READ_SHIFT_SUPPORTED
570 # endif
571 # ifndef PNG_NO_READ_PACK
572 # define PNG_READ_PACK_SUPPORTED
573 # endif
574 # ifndef PNG_NO_READ_BGR
575 # define PNG_READ_BGR_SUPPORTED
576 # endif
577 # ifndef PNG_NO_READ_SWAP
578 # define PNG_READ_SWAP_SUPPORTED
579 # endif
580 # ifndef PNG_NO_READ_PACKSWAP
581 # define PNG_READ_PACKSWAP_SUPPORTED
582 # endif
583 # ifndef PNG_NO_READ_INVERT
584 # define PNG_READ_INVERT_SUPPORTED
585 # endif
586 # ifndef PNG_NO_READ_DITHER
587 # define PNG_READ_DITHER_SUPPORTED
588 # endif
589 # ifndef PNG_NO_READ_BACKGROUND
590 # define PNG_READ_BACKGROUND_SUPPORTED
591 # endif
592 # ifndef PNG_NO_READ_16_TO_8
593 # define PNG_READ_16_TO_8_SUPPORTED
594 # endif
595 # ifndef PNG_NO_READ_FILLER
596 # define PNG_READ_FILLER_SUPPORTED
597 # endif
598 # ifndef PNG_NO_READ_GAMMA
599 # define PNG_READ_GAMMA_SUPPORTED
600 # endif
601 # ifndef PNG_NO_READ_GRAY_TO_RGB
602 # define PNG_READ_GRAY_TO_RGB_SUPPORTED
603 # endif
604 # ifndef PNG_NO_READ_SWAP_ALPHA
605 # define PNG_READ_SWAP_ALPHA_SUPPORTED
606 # endif
607 # ifndef PNG_NO_READ_INVERT_ALPHA
608 # define PNG_READ_INVERT_ALPHA_SUPPORTED
609 # endif
610 # ifndef PNG_NO_READ_STRIP_ALPHA
611 # define PNG_READ_STRIP_ALPHA_SUPPORTED
612 # endif
613 # ifndef PNG_NO_READ_USER_TRANSFORM
614 # define PNG_READ_USER_TRANSFORM_SUPPORTED
615 # endif
616 # ifndef PNG_NO_READ_RGB_TO_GRAY
617 # define PNG_READ_RGB_TO_GRAY_SUPPORTED
618 # endif
619 #endif /* PNG_READ_TRANSFORMS_SUPPORTED */
620
621 #if !defined(PNG_NO_PROGRESSIVE_READ) && \
622 !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */
623 # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
624 #endif /* about interlacing capability! You'll */
625 /* still have interlacing unless you change the following line: */
626
627 #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
628
629 #ifndef PNG_NO_READ_COMPOSITE_NODIV
630 # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
631 # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
632 # endif
633 #endif
634
635 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
636 /* Deprecated, will be removed from version 2.0.0.
637 Use PNG_MNG_FEATURES_SUPPORTED instead. */
638 #ifndef PNG_NO_READ_EMPTY_PLTE
639 # define PNG_READ_EMPTY_PLTE_SUPPORTED
640 #endif
641 #endif
642
643 #endif /* PNG_READ_SUPPORTED */
644
645 #ifdef PNG_WRITE_SUPPORTED
646
647 # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
648 !defined(PNG_NO_WRITE_TRANSFORMS)
649 # define PNG_WRITE_TRANSFORMS_SUPPORTED
650 #endif
651
652 #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
653 # ifndef PNG_NO_WRITE_SHIFT
654 # define PNG_WRITE_SHIFT_SUPPORTED
655 # endif
656 # ifndef PNG_NO_WRITE_PACK
657 # define PNG_WRITE_PACK_SUPPORTED
658 # endif
659 # ifndef PNG_NO_WRITE_BGR
660 # define PNG_WRITE_BGR_SUPPORTED
661 # endif
662 # ifndef PNG_NO_WRITE_SWAP
663 # define PNG_WRITE_SWAP_SUPPORTED
664 # endif
665 # ifndef PNG_NO_WRITE_PACKSWAP
666 # define PNG_WRITE_PACKSWAP_SUPPORTED
667 # endif
668 # ifndef PNG_NO_WRITE_INVERT
669 # define PNG_WRITE_INVERT_SUPPORTED
670 # endif
671 # ifndef PNG_NO_WRITE_FILLER
672 # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */
673 # endif
674 # ifndef PNG_NO_WRITE_SWAP_ALPHA
675 # define PNG_WRITE_SWAP_ALPHA_SUPPORTED
676 # endif
677 # ifndef PNG_NO_WRITE_INVERT_ALPHA
678 # define PNG_WRITE_INVERT_ALPHA_SUPPORTED
679 # endif
680 # ifndef PNG_NO_WRITE_USER_TRANSFORM
681 # define PNG_WRITE_USER_TRANSFORM_SUPPORTED
682 # endif
683 #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
684
685 #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
686 !defined(PNG_WRITE_INTERLACING_SUPPORTED)
687 #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
688 encoders, but can cause trouble
689 if left undefined */
690 #endif
691
692 #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
693 !defined(PNG_WRITE_WEIGHTED_FILTER) && \
694 defined(PNG_FLOATING_POINT_SUPPORTED)
695 # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
696 #endif
697
698 #ifndef PNG_NO_WRITE_FLUSH
699 # define PNG_WRITE_FLUSH_SUPPORTED
700 #endif
701
702 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
703 /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
704 #ifndef PNG_NO_WRITE_EMPTY_PLTE
705 # define PNG_WRITE_EMPTY_PLTE_SUPPORTED
706 #endif
707 #endif
708
709 #endif /* PNG_WRITE_SUPPORTED */
710
711 #ifndef PNG_1_0_X
712 # ifndef PNG_NO_ERROR_NUMBERS
713 # define PNG_ERROR_NUMBERS_SUPPORTED
714 # endif
715 #endif /* PNG_1_0_X */
716
717 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
718 defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
719 # ifndef PNG_NO_USER_TRANSFORM_PTR
720 # define PNG_USER_TRANSFORM_PTR_SUPPORTED
721 # endif
722 #endif
723
724 #ifndef PNG_NO_STDIO
725 # define PNG_TIME_RFC1123_SUPPORTED
726 #endif
727
728 /* This adds extra functions in pngget.c for accessing data from the
729 * info pointer (added in version 0.99)
730 * png_get_image_width()
731 * png_get_image_height()
732 * png_get_bit_depth()
733 * png_get_color_type()
734 * png_get_compression_type()
735 * png_get_filter_type()
736 * png_get_interlace_type()
737 * png_get_pixel_aspect_ratio()
738 * png_get_pixels_per_meter()
739 * png_get_x_offset_pixels()
740 * png_get_y_offset_pixels()
741 * png_get_x_offset_microns()
742 * png_get_y_offset_microns()
743 */
744 #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
745 # define PNG_EASY_ACCESS_SUPPORTED
746 #endif
747
748 /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
749 * and removed from version 1.2.20. The following will be removed
750 * from libpng-1.4.0
751 */
752
753 #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
754 # ifndef PNG_OPTIMIZED_CODE_SUPPORTED
755 # define PNG_OPTIMIZED_CODE_SUPPORTED
756 # endif
757 #endif
758
759 #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
760 # ifndef PNG_ASSEMBLER_CODE_SUPPORTED
761 # define PNG_ASSEMBLER_CODE_SUPPORTED
762 # endif
763
764 # if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
765 /* work around 64-bit gcc compiler bugs in gcc-3.x */
766 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
767 # define PNG_NO_MMX_CODE
768 # endif
769 # endif
770
771 # if defined(__APPLE__)
772 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
773 # define PNG_NO_MMX_CODE
774 # endif
775 # endif
776
777 # if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
778 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
779 # define PNG_NO_MMX_CODE
780 # endif
781 # endif
782
783 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
784 # define PNG_MMX_CODE_SUPPORTED
785 # endif
786
787 #endif
788 /* end of obsolete code to be removed from libpng-1.4.0 */
789
790 #if !defined(PNG_1_0_X)
791 #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
792 # define PNG_USER_MEM_SUPPORTED
793 #endif
794 #endif /* PNG_1_0_X */
795
796 /* Added at libpng-1.2.6 */
797 #if !defined(PNG_1_0_X)
798 #ifndef PNG_SET_USER_LIMITS_SUPPORTED
799 #if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
800 # define PNG_SET_USER_LIMITS_SUPPORTED
801 #endif
802 #endif
803 #endif /* PNG_1_0_X */
804
805 /* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter
806 * how large, set these limits to 0x7fffffffL
807 */
808 #ifndef PNG_USER_WIDTH_MAX
809 # define PNG_USER_WIDTH_MAX 1000000L
810 #endif
811 #ifndef PNG_USER_HEIGHT_MAX
812 # define PNG_USER_HEIGHT_MAX 1000000L
813 #endif
814
815 /* Added at libpng-1.2.34 and 1.4.0 */
816 #ifndef PNG_STRING_NEWLINE
817 #define PNG_STRING_NEWLINE "\n"
818 #endif
819
820 /* These are currently experimental features, define them if you want */
821
822 /* very little testing */
823 /*
824 #ifdef PNG_READ_SUPPORTED
825 # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
826 # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
827 # endif
828 #endif
829 */
830
831 /* This is only for PowerPC big-endian and 680x0 systems */
832 /* some testing */
833 /*
834 #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
835 # define PNG_READ_BIG_ENDIAN_SUPPORTED
836 #endif
837 */
838
839 /* Buggy compilers (e.g., gcc 2.7.2.2) need this */
840 /*
841 #define PNG_NO_POINTER_INDEXING
842 */
843
844 /* These functions are turned off by default, as they will be phased out. */
845 /*
846 #define PNG_USELESS_TESTS_SUPPORTED
847 #define PNG_CORRECT_PALETTE_SUPPORTED
848 */
849
850 /* Any chunks you are not interested in, you can undef here. The
851 * ones that allocate memory may be expecially important (hIST,
852 * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
853 * a bit smaller.
854 */
855
856 #if defined(PNG_READ_SUPPORTED) && \
857 !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
858 !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
859 # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
860 #endif
861
862 #if defined(PNG_WRITE_SUPPORTED) && \
863 !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
864 !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
865 # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
866 #endif
867
868 #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
869
870 #ifdef PNG_NO_READ_TEXT
871 # define PNG_NO_READ_iTXt
872 # define PNG_NO_READ_tEXt
873 # define PNG_NO_READ_zTXt
874 #endif
875 #ifndef PNG_NO_READ_bKGD
876 # define PNG_READ_bKGD_SUPPORTED
877 # define PNG_bKGD_SUPPORTED
878 #endif
879 #ifndef PNG_NO_READ_cHRM
880 # define PNG_READ_cHRM_SUPPORTED
881 # define PNG_cHRM_SUPPORTED
882 #endif
883 #ifndef PNG_NO_READ_gAMA
884 # define PNG_READ_gAMA_SUPPORTED
885 # define PNG_gAMA_SUPPORTED
886 #endif
887 #ifndef PNG_NO_READ_hIST
888 # define PNG_READ_hIST_SUPPORTED
889 # define PNG_hIST_SUPPORTED
890 #endif
891 #ifndef PNG_NO_READ_iCCP
892 # define PNG_READ_iCCP_SUPPORTED
893 # define PNG_iCCP_SUPPORTED
894 #endif
895 #ifndef PNG_NO_READ_iTXt
896 # ifndef PNG_READ_iTXt_SUPPORTED
897 # define PNG_READ_iTXt_SUPPORTED
898 # endif
899 # ifndef PNG_iTXt_SUPPORTED
900 # define PNG_iTXt_SUPPORTED
901 # endif
902 #endif
903 #ifndef PNG_NO_READ_oFFs
904 # define PNG_READ_oFFs_SUPPORTED
905 # define PNG_oFFs_SUPPORTED
906 #endif
907 #ifndef PNG_NO_READ_pCAL
908 # define PNG_READ_pCAL_SUPPORTED
909 # define PNG_pCAL_SUPPORTED
910 #endif
911 #ifndef PNG_NO_READ_sCAL
912 # define PNG_READ_sCAL_SUPPORTED
913 # define PNG_sCAL_SUPPORTED
914 #endif
915 #ifndef PNG_NO_READ_pHYs
916 # define PNG_READ_pHYs_SUPPORTED
917 # define PNG_pHYs_SUPPORTED
918 #endif
919 #ifndef PNG_NO_READ_sBIT
920 # define PNG_READ_sBIT_SUPPORTED
921 # define PNG_sBIT_SUPPORTED
922 #endif
923 #ifndef PNG_NO_READ_sPLT
924 # define PNG_READ_sPLT_SUPPORTED
925 # define PNG_sPLT_SUPPORTED
926 #endif
927 #ifndef PNG_NO_READ_sRGB
928 # define PNG_READ_sRGB_SUPPORTED
929 # define PNG_sRGB_SUPPORTED
930 #endif
931 #ifndef PNG_NO_READ_tEXt
932 # define PNG_READ_tEXt_SUPPORTED
933 # define PNG_tEXt_SUPPORTED
934 #endif
935 #ifndef PNG_NO_READ_tIME
936 # define PNG_READ_tIME_SUPPORTED
937 # define PNG_tIME_SUPPORTED
938 #endif
939 #ifndef PNG_NO_READ_tRNS
940 # define PNG_READ_tRNS_SUPPORTED
941 # define PNG_tRNS_SUPPORTED
942 #endif
943 #ifndef PNG_NO_READ_zTXt
944 # define PNG_READ_zTXt_SUPPORTED
945 # define PNG_zTXt_SUPPORTED
946 #endif
947 #ifndef PNG_NO_READ_OPT_PLTE
948 # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
949 #endif /* optional PLTE chunk in RGB and RGBA images */
950 #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
951 defined(PNG_READ_zTXt_SUPPORTED)
952 # define PNG_READ_TEXT_SUPPORTED
953 # define PNG_TEXT_SUPPORTED
954 #endif
955
956 #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
957
958 #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
959 # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
960 # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
961 # define PNG_UNKNOWN_CHUNKS_SUPPORTED
962 # endif
963 #endif
964 #if !defined(PNG_NO_READ_USER_CHUNKS) && \
965 defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
966 # define PNG_READ_USER_CHUNKS_SUPPORTED
967 # define PNG_USER_CHUNKS_SUPPORTED
968 # ifdef PNG_NO_READ_UNKNOWN_CHUNKS
969 # undef PNG_NO_READ_UNKNOWN_CHUNKS
970 # endif
971 # ifdef PNG_NO_HANDLE_AS_UNKNOWN
972 # undef PNG_NO_HANDLE_AS_UNKNOWN
973 # endif
974 #endif
975
976 #ifndef PNG_NO_HANDLE_AS_UNKNOWN
977 # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
978 # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
979 # endif
980 #endif
981
982 #ifdef PNG_WRITE_SUPPORTED
983 #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
984
985 #ifdef PNG_NO_WRITE_TEXT
986 # define PNG_NO_WRITE_iTXt
987 # define PNG_NO_WRITE_tEXt
988 # define PNG_NO_WRITE_zTXt
989 #endif
990 #ifndef PNG_NO_WRITE_bKGD
991 # define PNG_WRITE_bKGD_SUPPORTED
992 # ifndef PNG_bKGD_SUPPORTED
993 # define PNG_bKGD_SUPPORTED
994 # endif
995 #endif
996 #ifndef PNG_NO_WRITE_cHRM
997 # define PNG_WRITE_cHRM_SUPPORTED
998 # ifndef PNG_cHRM_SUPPORTED
999 # define PNG_cHRM_SUPPORTED
1000 # endif
1001 #endif
1002 #ifndef PNG_NO_WRITE_gAMA
1003 # define PNG_WRITE_gAMA_SUPPORTED
1004 # ifndef PNG_gAMA_SUPPORTED
1005 # define PNG_gAMA_SUPPORTED
1006 # endif
1007 #endif
1008 #ifndef PNG_NO_WRITE_hIST
1009 # define PNG_WRITE_hIST_SUPPORTED
1010 # ifndef PNG_hIST_SUPPORTED
1011 # define PNG_hIST_SUPPORTED
1012 # endif
1013 #endif
1014 #ifndef PNG_NO_WRITE_iCCP
1015 # define PNG_WRITE_iCCP_SUPPORTED
1016 # ifndef PNG_iCCP_SUPPORTED
1017 # define PNG_iCCP_SUPPORTED
1018 # endif
1019 #endif
1020 #ifndef PNG_NO_WRITE_iTXt
1021 # ifndef PNG_WRITE_iTXt_SUPPORTED
1022 # define PNG_WRITE_iTXt_SUPPORTED
1023 # endif
1024 # ifndef PNG_iTXt_SUPPORTED
1025 # define PNG_iTXt_SUPPORTED
1026 # endif
1027 #endif
1028 #ifndef PNG_NO_WRITE_oFFs
1029 # define PNG_WRITE_oFFs_SUPPORTED
1030 # ifndef PNG_oFFs_SUPPORTED
1031 # define PNG_oFFs_SUPPORTED
1032 # endif
1033 #endif
1034 #ifndef PNG_NO_WRITE_pCAL
1035 # define PNG_WRITE_pCAL_SUPPORTED
1036 # ifndef PNG_pCAL_SUPPORTED
1037 # define PNG_pCAL_SUPPORTED
1038 # endif
1039 #endif
1040 #ifndef PNG_NO_WRITE_sCAL
1041 # define PNG_WRITE_sCAL_SUPPORTED
1042 # ifndef PNG_sCAL_SUPPORTED
1043 # define PNG_sCAL_SUPPORTED
1044 # endif
1045 #endif
1046 #ifndef PNG_NO_WRITE_pHYs
1047 # define PNG_WRITE_pHYs_SUPPORTED
1048 # ifndef PNG_pHYs_SUPPORTED
1049 # define PNG_pHYs_SUPPORTED
1050 # endif
1051 #endif
1052 #ifndef PNG_NO_WRITE_sBIT
1053 # define PNG_WRITE_sBIT_SUPPORTED
1054 # ifndef PNG_sBIT_SUPPORTED
1055 # define PNG_sBIT_SUPPORTED
1056 # endif
1057 #endif
1058 #ifndef PNG_NO_WRITE_sPLT
1059 # define PNG_WRITE_sPLT_SUPPORTED
1060 # ifndef PNG_sPLT_SUPPORTED
1061 # define PNG_sPLT_SUPPORTED
1062 # endif
1063 #endif
1064 #ifndef PNG_NO_WRITE_sRGB
1065 # define PNG_WRITE_sRGB_SUPPORTED
1066 # ifndef PNG_sRGB_SUPPORTED
1067 # define PNG_sRGB_SUPPORTED
1068 # endif
1069 #endif
1070 #ifndef PNG_NO_WRITE_tEXt
1071 # define PNG_WRITE_tEXt_SUPPORTED
1072 # ifndef PNG_tEXt_SUPPORTED
1073 # define PNG_tEXt_SUPPORTED
1074 # endif
1075 #endif
1076 #ifndef PNG_NO_WRITE_tIME
1077 # define PNG_WRITE_tIME_SUPPORTED
1078 # ifndef PNG_tIME_SUPPORTED
1079 # define PNG_tIME_SUPPORTED
1080 # endif
1081 #endif
1082 #ifndef PNG_NO_WRITE_tRNS
1083 # define PNG_WRITE_tRNS_SUPPORTED
1084 # ifndef PNG_tRNS_SUPPORTED
1085 # define PNG_tRNS_SUPPORTED
1086 # endif
1087 #endif
1088 #ifndef PNG_NO_WRITE_zTXt
1089 # define PNG_WRITE_zTXt_SUPPORTED
1090 # ifndef PNG_zTXt_SUPPORTED
1091 # define PNG_zTXt_SUPPORTED
1092 # endif
1093 #endif
1094 #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
1095 defined(PNG_WRITE_zTXt_SUPPORTED)
1096 # define PNG_WRITE_TEXT_SUPPORTED
1097 # ifndef PNG_TEXT_SUPPORTED
1098 # define PNG_TEXT_SUPPORTED
1099 # endif
1100 #endif
1101
1102 #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
1103
1104 #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
1105 # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
1106 # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
1107 # define PNG_UNKNOWN_CHUNKS_SUPPORTED
1108 # endif
1109 #endif
1110
1111 #ifndef PNG_NO_HANDLE_AS_UNKNOWN
1112 # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1113 # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1114 # endif
1115 #endif
1116 #endif /* PNG_WRITE_SUPPORTED */
1117
1118 /* Turn this off to disable png_read_png() and
1119 * png_write_png() and leave the row_pointers member
1120 * out of the info structure.
1121 */
1122 #ifndef PNG_NO_INFO_IMAGE
1123 # define PNG_INFO_IMAGE_SUPPORTED
1124 #endif
1125
1126 /* need the time information for reading tIME chunks */
1127 #if defined(PNG_tIME_SUPPORTED)
1128 # if !defined(_WIN32_WCE)
1129 /* "time.h" functions are not supported on WindowsCE */
1130 # include <time.h>
1131 # endif
1132 #endif
1133
1134 /* Some typedefs to get us started. These should be safe on most of the
1135 * common platforms. The typedefs should be at least as large as the
1136 * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
1137 * don't have to be exactly that size. Some compilers dislike passing
1138 * unsigned shorts as function parameters, so you may be better off using
1139 * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may
1140 * want to have unsigned int for png_uint_32 instead of unsigned long.
1141 */
1142
1143 typedef unsigned long png_uint_32;
1144 typedef long png_int_32;
1145 typedef unsigned short png_uint_16;
1146 typedef short png_int_16;
1147 typedef unsigned char png_byte;
1148
1149 /* This is usually size_t. It is typedef'ed just in case you need it to
1150 change (I'm not sure if you will or not, so I thought I'd be safe) */
1151 #ifdef PNG_SIZE_T
1152 typedef PNG_SIZE_T png_size_t;
1153 # define png_sizeof(x) png_convert_size(sizeof(x))
1154 #else
1155 typedef size_t png_size_t;
1156 # define png_sizeof(x) sizeof(x)
1157 #endif
1158
1159 /* The following is needed for medium model support. It cannot be in the
1160 * PNG_INTERNAL section. Needs modification for other compilers besides
1161 * MSC. Model independent support declares all arrays and pointers to be
1162 * large using the far keyword. The zlib version used must also support
1163 * model independent data. As of version zlib 1.0.4, the necessary changes
1164 * have been made in zlib. The USE_FAR_KEYWORD define triggers other
1165 * changes that are needed. (Tim Wegner)
1166 */
1167
1168 /* Separate compiler dependencies (problem here is that zlib.h always
1169 defines FAR. (SJT) */
1170 #ifdef __BORLANDC__
1171 # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
1172 # define LDATA 1
1173 # else
1174 # define LDATA 0
1175 # endif
1176 /* GRR: why is Cygwin in here? Cygwin is not Borland C... */
1177 # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
1178 # define PNG_MAX_MALLOC_64K
1179 # if (LDATA != 1)
1180 # ifndef FAR
1181 # define FAR __far
1182 # endif
1183 # define USE_FAR_KEYWORD
1184 # endif /* LDATA != 1 */
1185 /* Possibly useful for moving data out of default segment.
1186 * Uncomment it if you want. Could also define FARDATA as
1187 * const if your compiler supports it. (SJT)
1188 # define FARDATA FAR
1189 */
1190 # endif /* __WIN32__, __FLAT__, __CYGWIN__ */
1191 #endif /* __BORLANDC__ */
1192
1193
1194 /* Suggest testing for specific compiler first before testing for
1195 * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM,
1196 * making reliance oncertain keywords suspect. (SJT)
1197 */
1198
1199 /* MSC Medium model */
1200 #if defined(FAR)
1201 # if defined(M_I86MM)
1202 # define USE_FAR_KEYWORD
1203 # define FARDATA FAR
1204 # include <dos.h>
1205 # endif
1206 #endif
1207
1208 /* SJT: default case */
1209 #ifndef FAR
1210 # define FAR
1211 #endif
1212
1213 /* At this point FAR is always defined */
1214 #ifndef FARDATA
1215 # define FARDATA
1216 #endif
1217
1218 /* Typedef for floating-point numbers that are converted
1219 to fixed-point with a multiple of 100,000, e.g., int_gamma */
1220 typedef png_int_32 png_fixed_point;
1221
1222 /* Add typedefs for pointers */
1223 typedef void FAR * png_voidp;
1224 typedef png_byte FAR * png_bytep;
1225 typedef png_uint_32 FAR * png_uint_32p;
1226 typedef png_int_32 FAR * png_int_32p;
1227 typedef png_uint_16 FAR * png_uint_16p;
1228 typedef png_int_16 FAR * png_int_16p;
1229 typedef PNG_CONST char FAR * png_const_charp;
1230 typedef char FAR * png_charp;
1231 typedef png_fixed_point FAR * png_fixed_point_p;
1232
1233 #ifndef PNG_NO_STDIO
1234 #if defined(_WIN32_WCE)
1235 typedef HANDLE png_FILE_p;
1236 #else
1237 typedef FILE * png_FILE_p;
1238 #endif
1239 #endif
1240
1241 #ifdef PNG_FLOATING_POINT_SUPPORTED
1242 typedef double FAR * png_doublep;
1243 #endif
1244
1245 /* Pointers to pointers; i.e. arrays */
1246 typedef png_byte FAR * FAR * png_bytepp;
1247 typedef png_uint_32 FAR * FAR * png_uint_32pp;
1248 typedef png_int_32 FAR * FAR * png_int_32pp;
1249 typedef png_uint_16 FAR * FAR * png_uint_16pp;
1250 typedef png_int_16 FAR * FAR * png_int_16pp;
1251 typedef PNG_CONST char FAR * FAR * png_const_charpp;
1252 typedef char FAR * FAR * png_charpp;
1253 typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
1254 #ifdef PNG_FLOATING_POINT_SUPPORTED
1255 typedef double FAR * FAR * png_doublepp;
1256 #endif
1257
1258 /* Pointers to pointers to pointers; i.e., pointer to array */
1259 typedef char FAR * FAR * FAR * png_charppp;
1260
1261 #if defined(PNG_1_0_X) || defined(PNG_1_2_X)
1262 /* SPC - Is this stuff deprecated? */
1263 /* It'll be removed as of libpng-1.4.0 - GR-P */
1264 /* libpng typedefs for types in zlib. If zlib changes
1265 * or another compression library is used, then change these.
1266 * Eliminates need to change all the source files.
1267 */
1268 typedef charf * png_zcharp;
1269 typedef charf * FAR * png_zcharpp;
1270 typedef z_stream FAR * png_zstreamp;
1271 #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
1272
1273 /*
1274 * Define PNG_BUILD_DLL if the module being built is a Windows
1275 * LIBPNG DLL.
1276 *
1277 * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
1278 * It is equivalent to Microsoft predefined macro _DLL that is
1279 * automatically defined when you compile using the share
1280 * version of the CRT (C Run-Time library)
1281 *
1282 * The cygwin mods make this behavior a little different:
1283 * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
1284 * Define PNG_STATIC if you are building a static library for use with cygwin,
1285 * -or- if you are building an application that you want to link to the
1286 * static library.
1287 * PNG_USE_DLL is defined by default (no user action needed) unless one of
1288 * the other flags is defined.
1289 */
1290
1291 #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
1292 # define PNG_DLL
1293 #endif
1294 /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
1295 * When building a static lib, default to no GLOBAL ARRAYS, but allow
1296 * command-line override
1297 */
1298 #if defined(__CYGWIN__)
1299 # if !defined(PNG_STATIC)
1300 # if defined(PNG_USE_GLOBAL_ARRAYS)
1301 # undef PNG_USE_GLOBAL_ARRAYS
1302 # endif
1303 # if !defined(PNG_USE_LOCAL_ARRAYS)
1304 # define PNG_USE_LOCAL_ARRAYS
1305 # endif
1306 # else
1307 # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
1308 # if defined(PNG_USE_GLOBAL_ARRAYS)
1309 # undef PNG_USE_GLOBAL_ARRAYS
1310 # endif
1311 # endif
1312 # endif
1313 # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
1314 # define PNG_USE_LOCAL_ARRAYS
1315 # endif
1316 #endif
1317
1318 /* Do not use global arrays (helps with building DLL's)
1319 * They are no longer used in libpng itself, since version 1.0.5c,
1320 * but might be required for some pre-1.0.5c applications.
1321 */
1322 #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
1323 # if defined(PNG_NO_GLOBAL_ARRAYS) || \
1324 (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
1325 # define PNG_USE_LOCAL_ARRAYS
1326 # else
1327 # define PNG_USE_GLOBAL_ARRAYS
1328 # endif
1329 #endif
1330
1331 #if defined(__CYGWIN__)
1332 # undef PNGAPI
1333 # define PNGAPI __cdecl
1334 # undef PNG_IMPEXP
1335 # define PNG_IMPEXP
1336 #endif
1337
1338 /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
1339 * you may get warnings regarding the linkage of png_zalloc and png_zfree.
1340 * Don't ignore those warnings; you must also reset the default calling
1341 * convention in your compiler to match your PNGAPI, and you must build
1342 * zlib and your applications the same way you build libpng.
1343 */
1344
1345 #if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
1346 # ifndef PNG_NO_MODULEDEF
1347 # define PNG_NO_MODULEDEF
1348 # endif
1349 #endif
1350
1351 #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
1352 # define PNG_IMPEXP
1353 #endif
1354
1355 #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
1356 (( defined(_Windows) || defined(_WINDOWS) || \
1357 defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
1358
1359 # ifndef PNGAPI
1360 # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
1361 # define PNGAPI __cdecl
1362 # else
1363 # define PNGAPI _cdecl
1364 # endif
1365 # endif
1366
1367 # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
1368 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
1369 # define PNG_IMPEXP
1370 # endif
1371
1372 # if !defined(PNG_IMPEXP)
1373
1374 # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol
1375 # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol
1376
1377 /* Borland/Microsoft */
1378 # if defined(_MSC_VER) || defined(__BORLANDC__)
1379 # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
1380 # define PNG_EXPORT PNG_EXPORT_TYPE1
1381 # else
1382 # define PNG_EXPORT PNG_EXPORT_TYPE2
1383 # if defined(PNG_BUILD_DLL)
1384 # define PNG_IMPEXP __export
1385 # else
1386 # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
1387 VC++ */
1388 # endif /* Exists in Borland C++ for
1389 C++ classes (== huge) */
1390 # endif
1391 # endif
1392
1393 # if !defined(PNG_IMPEXP)
1394 # if defined(PNG_BUILD_DLL)
1395 # define PNG_IMPEXP __declspec(dllexport)
1396 # else
1397 # define PNG_IMPEXP __declspec(dllimport)
1398 # endif
1399 # endif
1400 # endif /* PNG_IMPEXP */
1401 #else /* !(DLL || non-cygwin WINDOWS) */
1402 # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
1403 # ifndef PNGAPI
1404 # define PNGAPI _System
1405 # endif
1406 # else
1407 # if 0 /* ... other platforms, with other meanings */
1408 # endif
1409 # endif
1410 #endif
1411
1412 #ifndef PNGAPI
1413 # define PNGAPI
1414 #endif
1415 #ifndef PNG_IMPEXP
1416 # define PNG_IMPEXP
1417 #endif
1418
1419 #ifdef PNG_BUILDSYMS
1420 # ifndef PNG_EXPORT
1421 # define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
1422 # endif
1423 # ifdef PNG_USE_GLOBAL_ARRAYS
1424 # ifndef PNG_EXPORT_VAR
1425 # define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
1426 # endif
1427 # endif
1428 #endif
1429
1430 #ifndef PNG_EXPORT
1431 # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
1432 #endif
1433
1434 #ifdef PNG_USE_GLOBAL_ARRAYS
1435 # ifndef PNG_EXPORT_VAR
1436 # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
1437 # endif
1438 #endif
1439
1440 /* User may want to use these so they are not in PNG_INTERNAL. Any library
1441 * functions that are passed far data must be model independent.
1442 */
1443
1444 #ifndef PNG_ABORT
1445 # define PNG_ABORT() abort()
1446 #endif
1447
1448 #ifdef PNG_SETJMP_SUPPORTED
1449 # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
1450 #else
1451 # define png_jmpbuf(png_ptr) \
1452 (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
1453 #endif
1454
1455 #if defined(USE_FAR_KEYWORD) /* memory model independent fns */
1456 /* use this to make far-to-near assignments */
1457 # define CHECK 1
1458 # define NOCHECK 0
1459 # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
1460 # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
1461 # define png_snprintf _fsnprintf /* Added to v 1.2.19 */
1462 # define png_strlen _fstrlen
1463 # define png_memcmp _fmemcmp /* SJT: added */
1464 # define png_memcpy _fmemcpy
1465 # define png_memset _fmemset
1466 #else /* use the usual functions */
1467 # define CVT_PTR(ptr) (ptr)
1468 # define CVT_PTR_NOCHECK(ptr) (ptr)
1469 # ifndef PNG_NO_SNPRINTF
1470 # ifdef _MSC_VER
1471 # define png_snprintf _snprintf /* Added to v 1.2.19 */
1472 # define png_snprintf2 _snprintf
1473 # define png_snprintf6 _snprintf
1474 # else
1475 # define png_snprintf snprintf /* Added to v 1.2.19 */
1476 # define png_snprintf2 snprintf
1477 # define png_snprintf6 snprintf
1478 # endif
1479 # else
1480 /* You don't have or don't want to use snprintf(). Caution: Using
1481 * sprintf instead of snprintf exposes your application to accidental
1482 * or malevolent buffer overflows. If you don't have snprintf()
1483 * as a general rule you should provide one (you can get one from
1484 * Portable OpenSSH). */
1485 # define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
1486 # define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
1487 # define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
1488 sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
1489 # endif
1490 # define png_strlen strlen
1491 # define png_memcmp memcmp /* SJT: added */
1492 # define png_memcpy memcpy
1493 # define png_memset memset
1494 #endif
1495 /* End of memory model independent support */
1496
1497 /* Just a little check that someone hasn't tried to define something
1498 * contradictory.
1499 */
1500 #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
1501 # undef PNG_ZBUF_SIZE
1502 # define PNG_ZBUF_SIZE 65536L
1503 #endif
1504
1505 /* Added at libpng-1.2.8 */
1506 #endif /* PNG_VERSION_INFO_ONLY */
1507
1508 #endif /* PNGCONF_H */

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