2
/* pngconf.h - machine configurable file for libpng
4
* libpng version 1.2.46 - July 9, 2011
5
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
6
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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* and license in png.h
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/* 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,
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* PNG_USER_CONFIG has to be defined on the compiler command line. This
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* includes the resource compiler for Windows DLL configurations.
29
#ifdef PNG_USER_CONFIG
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# ifndef PNG_USER_PRIVATEBUILD
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# define PNG_USER_PRIVATEBUILD
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/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
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#ifdef PNG_CONFIGURE_LIBPNG
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* Added at libpng-1.2.8
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* If you create a private DLL you need to define in "pngusr.h" the followings:
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* #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
49
* e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
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* #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
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* distinguish your DLL from those of the official release. These
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* correspond to the trailing letters that come after the version
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* number and must match your private DLL name>
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* e.g. // private DLL "libpng13gx.dll"
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* #define PNG_USER_DLLFNAME_POSTFIX "gx"
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* The following macros are also at your disposal if you want to complete the
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* DLL VERSIONINFO structure.
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* - PNG_USER_VERSIONINFO_COMMENTS
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* - PNG_USER_VERSIONINFO_COMPANYNAME
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* - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
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# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
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are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
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# pragma message("PRIVATEBUILD is deprecated.\
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Use PNG_USER_PRIVATEBUILD instead.")
73
# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
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#ifndef PNG_VERSION_INFO_ONLY
79
/* End of material added to libpng-1.2.8 */
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/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
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Restored at libpng-1.2.21 */
83
#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
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!defined(PNG_WARN_UNINITIALIZED_ROW)
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# define PNG_WARN_UNINITIALIZED_ROW 1
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/* End of material added at libpng-1.2.19/1.2.21 */
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/* This is the size of the compression buffer, and thus the size of
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* an IDAT chunk. Make this whatever size you feel is best for your
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* machine. One of these will be allocated per png_struct. When this
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* is full, it writes the data to the disk, and does some other
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* calculations. Making this an extremely small size will slow
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* 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),
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* it should not make much difference how big this is.
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#ifndef PNG_ZBUF_SIZE
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# define PNG_ZBUF_SIZE 8192
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/* Enable if you want a write-only libpng */
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#ifndef PNG_NO_READ_SUPPORTED
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# define PNG_READ_SUPPORTED
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/* Enable if you want a read-only libpng */
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#ifndef PNG_NO_WRITE_SUPPORTED
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# define PNG_WRITE_SUPPORTED
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/* Enabled in 1.2.41. */
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#ifdef PNG_ALLOW_BENIGN_ERRORS
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# define png_benign_error png_warning
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# define png_chunk_benign_error png_chunk_warning
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# ifndef PNG_BENIGN_ERRORS_SUPPORTED
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# define png_benign_error png_error
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# define png_chunk_benign_error png_chunk_error
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/* Added in libpng-1.2.41 */
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#if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED)
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# define PNG_WARNINGS_SUPPORTED
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#if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED)
135
# define PNG_ERROR_TEXT_SUPPORTED
138
#if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED)
139
# define PNG_CHECK_cHRM_SUPPORTED
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/* Enabled by default in 1.2.0. You can disable this if you don't need to
143
* support PNGs that are embedded in MNG datastreams
145
#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
146
# ifndef PNG_MNG_FEATURES_SUPPORTED
147
# define PNG_MNG_FEATURES_SUPPORTED
151
#ifndef PNG_NO_FLOATING_POINT_SUPPORTED
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# ifndef PNG_FLOATING_POINT_SUPPORTED
153
# define PNG_FLOATING_POINT_SUPPORTED
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/* If you are running on a machine where you cannot allocate more
158
* than 64K of memory at once, uncomment this. While libpng will not
159
* normally need that much memory in a chunk (unless you load up a very
160
* large file), zlib needs to know how big of a chunk it can use, and
161
* libpng thus makes sure to check any memory allocation to verify it
162
* will fit into memory.
163
#define PNG_MAX_MALLOC_64K
165
#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
166
# define PNG_MAX_MALLOC_64K
169
/* Special munging to support doing things the 'cygwin' way:
170
* 'Normal' png-on-win32 defines/defaults:
171
* PNG_BUILD_DLL -- building dll
172
* PNG_USE_DLL -- building an application, linking to dll
173
* (no define) -- building static library, or building an
174
* application and linking to the static lib
175
* 'Cygwin' defines/defaults:
176
* PNG_BUILD_DLL -- (ignored) building the dll
177
* (no define) -- (ignored) building an application, linking to the dll
178
* PNG_STATIC -- (ignored) building the static lib, or building an
179
* application that links to the static lib.
180
* ALL_STATIC -- (ignored) building various static libs, or building an
181
* application that links to the static libs.
183
* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
184
* this bit of #ifdefs will define the 'correct' config variables based on
185
* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
188
* Also, the precedence order is:
189
* ALL_STATIC (since we can't #undef something outside our namespace)
192
* (nothing) == PNG_USE_DLL
194
* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
195
* of auto-import in binutils, we no longer need to worry about
196
* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
197
* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
198
* to __declspec() stuff. However, we DO need to worry about
199
* PNG_BUILD_DLL and PNG_STATIC because those change some defaults
200
* such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
204
# ifdef PNG_BUILD_DLL
205
# undef PNG_BUILD_DLL
217
# ifdef PNG_BUILD_DLL
247
/* This protects us against compilers that run on a windowing system
248
* and thus don't have or would rather us not use the stdio types:
249
* stdin, stdout, and stderr. The only one currently used is stderr
250
* in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
251
* prevent these from being compiled and used. #defining PNG_NO_STDIO
252
* will also prevent these, plus will prevent the entire set of stdio
253
* macros and functions (FILE *, printf, etc.) from being compiled and used,
254
* unless (PNG_DEBUG > 0) has been #defined.
256
* #define PNG_NO_CONSOLE_IO
257
* #define PNG_NO_STDIO
260
#if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED)
261
# define PNG_STDIO_SUPPORTED
265
# include <windows.h>
266
/* Console I/O functions are not supported on WindowsCE */
267
# define PNG_NO_CONSOLE_IO
268
/* abort() may not be supported on some/all Windows CE platforms */
269
# define PNG_ABORT() exit(-1)
276
# ifndef PNG_CONSOLE_IO_SUPPORTED
277
# ifndef PNG_NO_CONSOLE_IO
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# define PNG_NO_CONSOLE_IO
284
# ifndef PNG_NO_CONSOLE_IO
285
# define PNG_NO_CONSOLE_IO
294
/* "stdio.h" functions are not supported on WindowsCE */
299
#if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED)
300
# define PNG_CONSOLE_IO_SUPPORTED
303
/* This macro protects us against machines that don't have function
304
* prototypes (ie K&R style headers). If your compiler does not handle
305
* function prototypes, define this macro and use the included ansi2knr.
306
* I've always been able to use _NO_PROTO as the indicator, but you may
307
* need to drag the empty declaration out in front of here, or change the
308
* ifdef to suit your own needs.
312
#ifdef OF /* zlib prototype munger */
313
# define PNGARG(arglist) OF(arglist)
317
# define PNGARG(arglist) ()
318
# ifndef PNG_TYPECAST_NULL
319
# define PNG_TYPECAST_NULL
322
# define PNGARG(arglist) arglist
323
#endif /* _NO_PROTO */
330
/* Try to determine if we are compiling on a Mac. Note that testing for
331
* just __MWERKS__ is not good enough, because the Codewarrior is now used
332
* on non-Mac platforms.
335
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
336
defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
341
/* enough people need this for various reasons to include it here */
342
#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
343
# include <sys/types.h>
346
#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
347
# define PNG_SETJMP_SUPPORTED
350
#ifdef PNG_SETJMP_SUPPORTED
351
/* This is an attempt to force a single setjmp behaviour on Linux. If
352
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
354
* You can bypass this test if you know that your application uses exactly
355
* the same setjmp.h that was included when libpng was built. Only define
356
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
357
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
358
* while building a separate libpng library for general use.
361
# ifndef PNG_SKIP_SETJMP_CHECK
364
# define PNG_SAVE_BSD_SOURCE
368
/* If you encounter a compiler error here, see the explanation
369
* near the end of INSTALL.
371
__pngconf.h__ in libpng already includes setjmp.h;
372
__dont__ include it again.;
374
# endif /* __linux__ */
375
# endif /* PNG_SKIP_SETJMP_CHECK */
377
/* include setjmp.h for error handling */
381
# ifdef PNG_SAVE_BSD_SOURCE
385
# undef PNG_SAVE_BSD_SOURCE
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# endif /* __linux__ */
388
#endif /* PNG_SETJMP_SUPPORTED */
391
# include <strings.h>
396
/* Other defines for things like memory and the like can go here. */
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/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
402
* aren't usually used outside the library (as far as I know), so it is
403
* debatable if they should be exported at all. In the future, when it is
404
* possible to have run-time registry of chunk-handling functions, some of
405
* these will be made available again.
406
#define PNG_EXTERN extern
410
/* Other defines specific to compilers can go here. Try to keep
411
* them inside an appropriate ifdef/endif pair for portability.
414
#ifdef PNG_FLOATING_POINT_SUPPORTED
416
/* We need to check that <math.h> hasn't already been included earlier
417
* as it seems it doesn't agree with <fp.h>, yet we should really use
418
* <fp.h> if possible.
420
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
426
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
427
/* Amiga SAS/C: We must include builtin FPU functions when compiling using
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/* Codewarrior on NT has linking problems without this. */
435
#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
436
# define PNG_ALWAYS_EXTERN
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/* This provides the non-ANSI (far) memory allocation routines. */
440
#if defined(__TURBOC__) && defined(__MSDOS__)
445
/* I have no idea why is this necessary... */
446
#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
447
defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
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/* This controls how fine the dithering gets. As this allocates
452
* a largish chunk of memory (32K), those who are not as concerned
453
* with dithering quality can decrease some or all of these.
455
#ifndef PNG_DITHER_RED_BITS
456
# define PNG_DITHER_RED_BITS 5
458
#ifndef PNG_DITHER_GREEN_BITS
459
# define PNG_DITHER_GREEN_BITS 5
461
#ifndef PNG_DITHER_BLUE_BITS
462
# define PNG_DITHER_BLUE_BITS 5
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/* This controls how fine the gamma correction becomes when you
466
* are only interested in 8 bits anyway. Increasing this value
467
* results in more memory being used, and more pow() functions
468
* being called to fill in the gamma tables. Don't set this value
469
* less then 8, and even that may not work (I haven't tested it).
472
#ifndef PNG_MAX_GAMMA_8
473
# define PNG_MAX_GAMMA_8 11
476
/* This controls how much a difference in gamma we can tolerate before
477
* we actually start doing gamma conversion.
479
#ifndef PNG_GAMMA_THRESHOLD
480
# define PNG_GAMMA_THRESHOLD 0.05
483
#endif /* PNG_INTERNAL */
485
/* The following uses const char * instead of char * for error
486
* and warning message functions, so some compilers won't complain.
487
* If you do not want to use const, define PNG_NO_CONST here.
491
# define PNG_CONST const
496
/* The following defines give you the ability to remove code from the
497
* library that you will not be using. I wish I could figure out how to
498
* automate this, but I can't do that without making it seriously hard
499
* on the users. So if you are not using an ability, change the #define
500
* to and #undef, and that part of the library will not be compiled. If
501
* your linker can't find a function, you may want to make sure the
502
* ability is defined here. Some of these depend upon some others being
503
* defined. I haven't figured out all the interactions here, so you may
504
* have to experiment awhile to get everything to compile. If you are
505
* creating or using a shared library, you probably shouldn't touch this,
506
* as it will affect the size of the structures, and this will cause bad
507
* things to happen if the library and/or application ever change.
510
/* Any features you will not be using can be undef'ed here */
512
/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
513
* to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
514
* on the compile line, then pick and choose which ones to define without
515
* having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
516
* if you only want to have a png-compliant reader/writer but don't need
517
* any of the extra transformations. This saves about 80 kbytes in a
518
* typical installation of the library. (PNG_NO_* form added in version
519
* 1.0.1c, for consistency)
522
/* The size of the png_text structure changed in libpng-1.0.6 when
523
* iTXt support was added. iTXt support was turned off by default through
524
* libpng-1.2.x, to support old apps that malloc the png_text structure
525
* instead of calling png_set_text() and letting libpng malloc it. It
526
* will be turned on by default in libpng-1.4.0.
529
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
530
# ifndef PNG_NO_iTXt_SUPPORTED
531
# define PNG_NO_iTXt_SUPPORTED
533
# ifndef PNG_NO_READ_iTXt
534
# define PNG_NO_READ_iTXt
536
# ifndef PNG_NO_WRITE_iTXt
537
# define PNG_NO_WRITE_iTXt
541
#if !defined(PNG_NO_iTXt_SUPPORTED)
542
# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
543
# define PNG_READ_iTXt
545
# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
546
# define PNG_WRITE_iTXt
550
/* The following support, added after version 1.0.0, can be turned off here en
551
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
552
* with old applications that require the length of png_struct and png_info
553
* to remain unchanged.
556
#ifdef PNG_LEGACY_SUPPORTED
557
# define PNG_NO_FREE_ME
558
# define PNG_NO_READ_UNKNOWN_CHUNKS
559
# define PNG_NO_WRITE_UNKNOWN_CHUNKS
560
# define PNG_NO_HANDLE_AS_UNKNOWN
561
# define PNG_NO_READ_USER_CHUNKS
562
# define PNG_NO_READ_iCCP
563
# define PNG_NO_WRITE_iCCP
564
# define PNG_NO_READ_iTXt
565
# define PNG_NO_WRITE_iTXt
566
# define PNG_NO_READ_sCAL
567
# define PNG_NO_WRITE_sCAL
568
# define PNG_NO_READ_sPLT
569
# define PNG_NO_WRITE_sPLT
570
# define PNG_NO_INFO_IMAGE
571
# define PNG_NO_READ_RGB_TO_GRAY
572
# define PNG_NO_READ_USER_TRANSFORM
573
# define PNG_NO_WRITE_USER_TRANSFORM
574
# define PNG_NO_USER_MEM
575
# define PNG_NO_READ_EMPTY_PLTE
576
# define PNG_NO_MNG_FEATURES
577
# define PNG_NO_FIXED_POINT_SUPPORTED
580
/* Ignore attempt to turn off both floating and fixed point support */
581
#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
582
!defined(PNG_NO_FIXED_POINT_SUPPORTED)
583
# define PNG_FIXED_POINT_SUPPORTED
586
#ifndef PNG_NO_FREE_ME
587
# define PNG_FREE_ME_SUPPORTED
590
#ifdef PNG_READ_SUPPORTED
592
#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
593
!defined(PNG_NO_READ_TRANSFORMS)
594
# define PNG_READ_TRANSFORMS_SUPPORTED
597
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
598
# ifndef PNG_NO_READ_EXPAND
599
# define PNG_READ_EXPAND_SUPPORTED
601
# ifndef PNG_NO_READ_SHIFT
602
# define PNG_READ_SHIFT_SUPPORTED
604
# ifndef PNG_NO_READ_PACK
605
# define PNG_READ_PACK_SUPPORTED
607
# ifndef PNG_NO_READ_BGR
608
# define PNG_READ_BGR_SUPPORTED
610
# ifndef PNG_NO_READ_SWAP
611
# define PNG_READ_SWAP_SUPPORTED
613
# ifndef PNG_NO_READ_PACKSWAP
614
# define PNG_READ_PACKSWAP_SUPPORTED
616
# ifndef PNG_NO_READ_INVERT
617
# define PNG_READ_INVERT_SUPPORTED
619
# ifndef PNG_NO_READ_DITHER
620
# define PNG_READ_DITHER_SUPPORTED
622
# ifndef PNG_NO_READ_BACKGROUND
623
# define PNG_READ_BACKGROUND_SUPPORTED
625
# ifndef PNG_NO_READ_16_TO_8
626
# define PNG_READ_16_TO_8_SUPPORTED
628
# ifndef PNG_NO_READ_FILLER
629
# define PNG_READ_FILLER_SUPPORTED
631
# ifndef PNG_NO_READ_GAMMA
632
# define PNG_READ_GAMMA_SUPPORTED
634
# ifndef PNG_NO_READ_GRAY_TO_RGB
635
# define PNG_READ_GRAY_TO_RGB_SUPPORTED
637
# ifndef PNG_NO_READ_SWAP_ALPHA
638
# define PNG_READ_SWAP_ALPHA_SUPPORTED
640
# ifndef PNG_NO_READ_INVERT_ALPHA
641
# define PNG_READ_INVERT_ALPHA_SUPPORTED
643
# ifndef PNG_NO_READ_STRIP_ALPHA
644
# define PNG_READ_STRIP_ALPHA_SUPPORTED
646
# ifndef PNG_NO_READ_USER_TRANSFORM
647
# define PNG_READ_USER_TRANSFORM_SUPPORTED
649
# ifndef PNG_NO_READ_RGB_TO_GRAY
650
# define PNG_READ_RGB_TO_GRAY_SUPPORTED
652
#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
654
/* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */
655
#if !defined(PNG_NO_PROGRESSIVE_READ) && \
656
!defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */
657
# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
658
#endif /* about interlacing capability! You'll */
659
/* still have interlacing unless you change the following define: */
660
#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
662
/* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */
663
#if !defined(PNG_NO_SEQUENTIAL_READ) && \
664
!defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \
665
!defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED)
666
# define PNG_SEQUENTIAL_READ_SUPPORTED
669
#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
671
#ifndef PNG_NO_READ_COMPOSITE_NODIV
672
# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
673
# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
677
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
678
/* Deprecated, will be removed from version 2.0.0.
679
Use PNG_MNG_FEATURES_SUPPORTED instead. */
680
#ifndef PNG_NO_READ_EMPTY_PLTE
681
# define PNG_READ_EMPTY_PLTE_SUPPORTED
685
#endif /* PNG_READ_SUPPORTED */
687
#ifdef PNG_WRITE_SUPPORTED
689
# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
690
!defined(PNG_NO_WRITE_TRANSFORMS)
691
# define PNG_WRITE_TRANSFORMS_SUPPORTED
694
#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
695
# ifndef PNG_NO_WRITE_SHIFT
696
# define PNG_WRITE_SHIFT_SUPPORTED
698
# ifndef PNG_NO_WRITE_PACK
699
# define PNG_WRITE_PACK_SUPPORTED
701
# ifndef PNG_NO_WRITE_BGR
702
# define PNG_WRITE_BGR_SUPPORTED
704
# ifndef PNG_NO_WRITE_SWAP
705
# define PNG_WRITE_SWAP_SUPPORTED
707
# ifndef PNG_NO_WRITE_PACKSWAP
708
# define PNG_WRITE_PACKSWAP_SUPPORTED
710
# ifndef PNG_NO_WRITE_INVERT
711
# define PNG_WRITE_INVERT_SUPPORTED
713
# ifndef PNG_NO_WRITE_FILLER
714
# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */
716
# ifndef PNG_NO_WRITE_SWAP_ALPHA
717
# define PNG_WRITE_SWAP_ALPHA_SUPPORTED
720
# ifndef PNG_NO_WRITE_INVERT_ALPHA
721
# define PNG_WRITE_INVERT_ALPHA_SUPPORTED
724
# ifndef PNG_NO_WRITE_USER_TRANSFORM
725
# define PNG_WRITE_USER_TRANSFORM_SUPPORTED
727
#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
729
#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
730
!defined(PNG_WRITE_INTERLACING_SUPPORTED)
731
#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
732
encoders, but can cause trouble
736
#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
737
!defined(PNG_WRITE_WEIGHTED_FILTER) && \
738
defined(PNG_FLOATING_POINT_SUPPORTED)
739
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
742
#ifndef PNG_NO_WRITE_FLUSH
743
# define PNG_WRITE_FLUSH_SUPPORTED
746
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
747
/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
748
#ifndef PNG_NO_WRITE_EMPTY_PLTE
749
# define PNG_WRITE_EMPTY_PLTE_SUPPORTED
753
#endif /* PNG_WRITE_SUPPORTED */
756
# ifndef PNG_NO_ERROR_NUMBERS
757
# define PNG_ERROR_NUMBERS_SUPPORTED
759
#endif /* PNG_1_0_X */
761
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
762
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
763
# ifndef PNG_NO_USER_TRANSFORM_PTR
764
# define PNG_USER_TRANSFORM_PTR_SUPPORTED
769
# define PNG_TIME_RFC1123_SUPPORTED
772
/* This adds extra functions in pngget.c for accessing data from the
773
* info pointer (added in version 0.99)
774
* png_get_image_width()
775
* png_get_image_height()
776
* png_get_bit_depth()
777
* png_get_color_type()
778
* png_get_compression_type()
779
* png_get_filter_type()
780
* png_get_interlace_type()
781
* png_get_pixel_aspect_ratio()
782
* png_get_pixels_per_meter()
783
* png_get_x_offset_pixels()
784
* png_get_y_offset_pixels()
785
* png_get_x_offset_microns()
786
* png_get_y_offset_microns()
788
#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
789
# define PNG_EASY_ACCESS_SUPPORTED
792
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
793
* and removed from version 1.2.20. The following will be removed
797
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
798
# ifndef PNG_OPTIMIZED_CODE_SUPPORTED
799
# define PNG_OPTIMIZED_CODE_SUPPORTED
803
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
804
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED
805
# define PNG_ASSEMBLER_CODE_SUPPORTED
808
# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
809
/* work around 64-bit gcc compiler bugs in gcc-3.x */
810
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
811
# define PNG_NO_MMX_CODE
816
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
817
# define PNG_NO_MMX_CODE
821
# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
822
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
823
# define PNG_NO_MMX_CODE
827
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
828
# define PNG_MMX_CODE_SUPPORTED
832
/* end of obsolete code to be removed from libpng-1.4.0 */
834
/* Added at libpng-1.2.0 */
836
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
837
# define PNG_USER_MEM_SUPPORTED
839
#endif /* PNG_1_0_X */
841
/* Added at libpng-1.2.6 */
843
# ifndef PNG_SET_USER_LIMITS_SUPPORTED
844
# ifndef PNG_NO_SET_USER_LIMITS
845
# define PNG_SET_USER_LIMITS_SUPPORTED
848
#endif /* PNG_1_0_X */
850
/* Added at libpng-1.0.53 and 1.2.43 */
851
#ifndef PNG_USER_LIMITS_SUPPORTED
852
# ifndef PNG_NO_USER_LIMITS
853
# define PNG_USER_LIMITS_SUPPORTED
857
/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter
858
* how large, set these limits to 0x7fffffffL
860
#ifndef PNG_USER_WIDTH_MAX
861
# define PNG_USER_WIDTH_MAX 1000000L
863
#ifndef PNG_USER_HEIGHT_MAX
864
# define PNG_USER_HEIGHT_MAX 1000000L
867
/* Added at libpng-1.2.43. To accept all valid PNGs no matter
868
* how large, set these two limits to 0.
870
#ifndef PNG_USER_CHUNK_CACHE_MAX
871
# define PNG_USER_CHUNK_CACHE_MAX 0
874
/* Added at libpng-1.2.43 */
875
#ifndef PNG_USER_CHUNK_MALLOC_MAX
876
# define PNG_USER_CHUNK_MALLOC_MAX 0
879
#ifndef PNG_LITERAL_SHARP
880
# define PNG_LITERAL_SHARP 0x23
882
#ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
883
# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b
885
#ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
886
# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d
889
/* Added at libpng-1.2.34 */
890
#ifndef PNG_STRING_NEWLINE
891
#define PNG_STRING_NEWLINE "\n"
894
/* These are currently experimental features, define them if you want */
896
/* very little testing */
898
#ifdef PNG_READ_SUPPORTED
899
# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
900
# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
905
/* This is only for PowerPC big-endian and 680x0 systems */
908
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
909
# define PNG_READ_BIG_ENDIAN_SUPPORTED
913
/* Buggy compilers (e.g., gcc 2.7.2.2) need this */
915
#define PNG_NO_POINTER_INDEXING
918
#if !defined(PNG_NO_POINTER_INDEXING) && \
919
!defined(PNG_POINTER_INDEXING_SUPPORTED)
920
# define PNG_POINTER_INDEXING_SUPPORTED
923
/* These functions are turned off by default, as they will be phased out. */
925
#define PNG_USELESS_TESTS_SUPPORTED
926
#define PNG_CORRECT_PALETTE_SUPPORTED
929
/* Any chunks you are not interested in, you can undef here. The
930
* ones that allocate memory may be expecially important (hIST,
931
* tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
935
#if defined(PNG_READ_SUPPORTED) && \
936
!defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
937
!defined(PNG_NO_READ_ANCILLARY_CHUNKS)
938
# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
941
#if defined(PNG_WRITE_SUPPORTED) && \
942
!defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
943
!defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
944
# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
947
#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
949
#ifdef PNG_NO_READ_TEXT
950
# define PNG_NO_READ_iTXt
951
# define PNG_NO_READ_tEXt
952
# define PNG_NO_READ_zTXt
954
#ifndef PNG_NO_READ_bKGD
955
# define PNG_READ_bKGD_SUPPORTED
956
# define PNG_bKGD_SUPPORTED
958
#ifndef PNG_NO_READ_cHRM
959
# define PNG_READ_cHRM_SUPPORTED
960
# define PNG_cHRM_SUPPORTED
962
#ifndef PNG_NO_READ_gAMA
963
# define PNG_READ_gAMA_SUPPORTED
964
# define PNG_gAMA_SUPPORTED
966
#ifndef PNG_NO_READ_hIST
967
# define PNG_READ_hIST_SUPPORTED
968
# define PNG_hIST_SUPPORTED
970
#ifndef PNG_NO_READ_iCCP
971
# define PNG_READ_iCCP_SUPPORTED
972
# define PNG_iCCP_SUPPORTED
974
#ifndef PNG_NO_READ_iTXt
975
# ifndef PNG_READ_iTXt_SUPPORTED
976
# define PNG_READ_iTXt_SUPPORTED
978
# ifndef PNG_iTXt_SUPPORTED
979
# define PNG_iTXt_SUPPORTED
982
#ifndef PNG_NO_READ_oFFs
983
# define PNG_READ_oFFs_SUPPORTED
984
# define PNG_oFFs_SUPPORTED
986
#ifndef PNG_NO_READ_pCAL
987
# define PNG_READ_pCAL_SUPPORTED
988
# define PNG_pCAL_SUPPORTED
990
#ifndef PNG_NO_READ_sCAL
991
# define PNG_READ_sCAL_SUPPORTED
992
# define PNG_sCAL_SUPPORTED
994
#ifndef PNG_NO_READ_pHYs
995
# define PNG_READ_pHYs_SUPPORTED
996
# define PNG_pHYs_SUPPORTED
998
#ifndef PNG_NO_READ_sBIT
999
# define PNG_READ_sBIT_SUPPORTED
1000
# define PNG_sBIT_SUPPORTED
1002
#ifndef PNG_NO_READ_sPLT
1003
# define PNG_READ_sPLT_SUPPORTED
1004
# define PNG_sPLT_SUPPORTED
1006
#ifndef PNG_NO_READ_sRGB
1007
# define PNG_READ_sRGB_SUPPORTED
1008
# define PNG_sRGB_SUPPORTED
1010
#ifndef PNG_NO_READ_tEXt
1011
# define PNG_READ_tEXt_SUPPORTED
1012
# define PNG_tEXt_SUPPORTED
1014
#ifndef PNG_NO_READ_tIME
1015
# define PNG_READ_tIME_SUPPORTED
1016
# define PNG_tIME_SUPPORTED
1018
#ifndef PNG_NO_READ_tRNS
1019
# define PNG_READ_tRNS_SUPPORTED
1020
# define PNG_tRNS_SUPPORTED
1022
#ifndef PNG_NO_READ_zTXt
1023
# define PNG_READ_zTXt_SUPPORTED
1024
# define PNG_zTXt_SUPPORTED
1026
#ifndef PNG_NO_READ_OPT_PLTE
1027
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
1028
#endif /* optional PLTE chunk in RGB and RGBA images */
1029
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
1030
defined(PNG_READ_zTXt_SUPPORTED)
1031
# define PNG_READ_TEXT_SUPPORTED
1032
# define PNG_TEXT_SUPPORTED
1035
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
1037
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS
1038
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
1039
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
1040
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
1043
#if !defined(PNG_NO_READ_USER_CHUNKS) && \
1044
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
1045
# define PNG_READ_USER_CHUNKS_SUPPORTED
1046
# define PNG_USER_CHUNKS_SUPPORTED
1047
# ifdef PNG_NO_READ_UNKNOWN_CHUNKS
1048
# undef PNG_NO_READ_UNKNOWN_CHUNKS
1050
# ifdef PNG_NO_HANDLE_AS_UNKNOWN
1051
# undef PNG_NO_HANDLE_AS_UNKNOWN
1055
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
1056
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1057
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1061
#ifdef PNG_WRITE_SUPPORTED
1062
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
1064
#ifdef PNG_NO_WRITE_TEXT
1065
# define PNG_NO_WRITE_iTXt
1066
# define PNG_NO_WRITE_tEXt
1067
# define PNG_NO_WRITE_zTXt
1069
#ifndef PNG_NO_WRITE_bKGD
1070
# define PNG_WRITE_bKGD_SUPPORTED
1071
# ifndef PNG_bKGD_SUPPORTED
1072
# define PNG_bKGD_SUPPORTED
1075
#ifndef PNG_NO_WRITE_cHRM
1076
# define PNG_WRITE_cHRM_SUPPORTED
1077
# ifndef PNG_cHRM_SUPPORTED
1078
# define PNG_cHRM_SUPPORTED
1081
#ifndef PNG_NO_WRITE_gAMA
1082
# define PNG_WRITE_gAMA_SUPPORTED
1083
# ifndef PNG_gAMA_SUPPORTED
1084
# define PNG_gAMA_SUPPORTED
1087
#ifndef PNG_NO_WRITE_hIST
1088
# define PNG_WRITE_hIST_SUPPORTED
1089
# ifndef PNG_hIST_SUPPORTED
1090
# define PNG_hIST_SUPPORTED
1093
#ifndef PNG_NO_WRITE_iCCP
1094
# define PNG_WRITE_iCCP_SUPPORTED
1095
# ifndef PNG_iCCP_SUPPORTED
1096
# define PNG_iCCP_SUPPORTED
1099
#ifndef PNG_NO_WRITE_iTXt
1100
# ifndef PNG_WRITE_iTXt_SUPPORTED
1101
# define PNG_WRITE_iTXt_SUPPORTED
1103
# ifndef PNG_iTXt_SUPPORTED
1104
# define PNG_iTXt_SUPPORTED
1107
#ifndef PNG_NO_WRITE_oFFs
1108
# define PNG_WRITE_oFFs_SUPPORTED
1109
# ifndef PNG_oFFs_SUPPORTED
1110
# define PNG_oFFs_SUPPORTED
1113
#ifndef PNG_NO_WRITE_pCAL
1114
# define PNG_WRITE_pCAL_SUPPORTED
1115
# ifndef PNG_pCAL_SUPPORTED
1116
# define PNG_pCAL_SUPPORTED
1119
#ifndef PNG_NO_WRITE_sCAL
1120
# define PNG_WRITE_sCAL_SUPPORTED
1121
# ifndef PNG_sCAL_SUPPORTED
1122
# define PNG_sCAL_SUPPORTED
1125
#ifndef PNG_NO_WRITE_pHYs
1126
# define PNG_WRITE_pHYs_SUPPORTED
1127
# ifndef PNG_pHYs_SUPPORTED
1128
# define PNG_pHYs_SUPPORTED
1131
#ifndef PNG_NO_WRITE_sBIT
1132
# define PNG_WRITE_sBIT_SUPPORTED
1133
# ifndef PNG_sBIT_SUPPORTED
1134
# define PNG_sBIT_SUPPORTED
1137
#ifndef PNG_NO_WRITE_sPLT
1138
# define PNG_WRITE_sPLT_SUPPORTED
1139
# ifndef PNG_sPLT_SUPPORTED
1140
# define PNG_sPLT_SUPPORTED
1143
#ifndef PNG_NO_WRITE_sRGB
1144
# define PNG_WRITE_sRGB_SUPPORTED
1145
# ifndef PNG_sRGB_SUPPORTED
1146
# define PNG_sRGB_SUPPORTED
1149
#ifndef PNG_NO_WRITE_tEXt
1150
# define PNG_WRITE_tEXt_SUPPORTED
1151
# ifndef PNG_tEXt_SUPPORTED
1152
# define PNG_tEXt_SUPPORTED
1155
#ifndef PNG_NO_WRITE_tIME
1156
# define PNG_WRITE_tIME_SUPPORTED
1157
# ifndef PNG_tIME_SUPPORTED
1158
# define PNG_tIME_SUPPORTED
1161
#ifndef PNG_NO_WRITE_tRNS
1162
# define PNG_WRITE_tRNS_SUPPORTED
1163
# ifndef PNG_tRNS_SUPPORTED
1164
# define PNG_tRNS_SUPPORTED
1167
#ifndef PNG_NO_WRITE_zTXt
1168
# define PNG_WRITE_zTXt_SUPPORTED
1169
# ifndef PNG_zTXt_SUPPORTED
1170
# define PNG_zTXt_SUPPORTED
1173
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
1174
defined(PNG_WRITE_zTXt_SUPPORTED)
1175
# define PNG_WRITE_TEXT_SUPPORTED
1176
# ifndef PNG_TEXT_SUPPORTED
1177
# define PNG_TEXT_SUPPORTED
1181
#ifdef PNG_WRITE_tIME_SUPPORTED
1182
# ifndef PNG_NO_CONVERT_tIME
1184
/* The "tm" structure is not supported on WindowsCE */
1185
# ifndef PNG_CONVERT_tIME_SUPPORTED
1186
# define PNG_CONVERT_tIME_SUPPORTED
1192
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
1194
#if !defined(PNG_NO_WRITE_FILTER) && !defined(PNG_WRITE_FILTER_SUPPORTED)
1195
# define PNG_WRITE_FILTER_SUPPORTED
1198
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
1199
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
1200
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
1201
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
1205
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
1206
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1207
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1210
#endif /* PNG_WRITE_SUPPORTED */
1212
/* Turn this off to disable png_read_png() and
1213
* png_write_png() and leave the row_pointers member
1214
* out of the info structure.
1216
#ifndef PNG_NO_INFO_IMAGE
1217
# define PNG_INFO_IMAGE_SUPPORTED
1220
/* Need the time information for converting tIME chunks */
1221
#ifdef PNG_CONVERT_tIME_SUPPORTED
1222
/* "time.h" functions are not supported on WindowsCE */
1226
/* Some typedefs to get us started. These should be safe on most of the
1227
* common platforms. The typedefs should be at least as large as the
1228
* numbers suggest (a png_uint_32 must be at least 32 bits long), but they
1229
* don't have to be exactly that size. Some compilers dislike passing
1230
* unsigned shorts as function parameters, so you may be better off using
1231
* unsigned int for png_uint_16. Likewise, for 64-bit systems, you may
1232
* want to have unsigned int for png_uint_32 instead of unsigned long.
1235
typedef unsigned long png_uint_32;
1236
typedef long png_int_32;
1237
typedef unsigned short png_uint_16;
1238
typedef short png_int_16;
1239
typedef unsigned char png_byte;
1241
/* This is usually size_t. It is typedef'ed just in case you need it to
1242
change (I'm not sure if you will or not, so I thought I'd be safe) */
1244
typedef PNG_SIZE_T png_size_t;
1245
# define png_sizeof(x) png_convert_size(sizeof(x))
1247
typedef size_t png_size_t;
1248
# define png_sizeof(x) sizeof(x)
1251
/* The following is needed for medium model support. It cannot be in the
1252
* PNG_INTERNAL section. Needs modification for other compilers besides
1253
* MSC. Model independent support declares all arrays and pointers to be
1254
* large using the far keyword. The zlib version used must also support
1255
* model independent data. As of version zlib 1.0.4, the necessary changes
1256
* have been made in zlib. The USE_FAR_KEYWORD define triggers other
1257
* changes that are needed. (Tim Wegner)
1260
/* Separate compiler dependencies (problem here is that zlib.h always
1261
defines FAR. (SJT) */
1263
# if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
1268
/* GRR: why is Cygwin in here? Cygwin is not Borland C... */
1269
# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
1270
# define PNG_MAX_MALLOC_64K
1275
# define USE_FAR_KEYWORD
1276
# endif /* LDATA != 1 */
1277
/* Possibly useful for moving data out of default segment.
1278
* Uncomment it if you want. Could also define FARDATA as
1279
* const if your compiler supports it. (SJT)
1280
# define FARDATA FAR
1282
# endif /* __WIN32__, __FLAT__, __CYGWIN__ */
1283
#endif /* __BORLANDC__ */
1286
/* Suggest testing for specific compiler first before testing for
1287
* FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM,
1288
* making reliance oncertain keywords suspect. (SJT)
1291
/* MSC Medium model */
1294
# define USE_FAR_KEYWORD
1295
# define FARDATA FAR
1300
/* SJT: default case */
1305
/* At this point FAR is always defined */
1310
/* Typedef for floating-point numbers that are converted
1311
to fixed-point with a multiple of 100,000, e.g., int_gamma */
1312
typedef png_int_32 png_fixed_point;
1314
/* Add typedefs for pointers */
1315
typedef void FAR * png_voidp;
1316
typedef png_byte FAR * png_bytep;
1317
typedef png_uint_32 FAR * png_uint_32p;
1318
typedef png_int_32 FAR * png_int_32p;
1319
typedef png_uint_16 FAR * png_uint_16p;
1320
typedef png_int_16 FAR * png_int_16p;
1321
typedef PNG_CONST char FAR * png_const_charp;
1322
typedef char FAR * png_charp;
1323
typedef png_fixed_point FAR * png_fixed_point_p;
1325
#ifndef PNG_NO_STDIO
1327
typedef HANDLE png_FILE_p;
1329
typedef FILE * png_FILE_p;
1333
#ifdef PNG_FLOATING_POINT_SUPPORTED
1334
typedef double FAR * png_doublep;
1337
/* Pointers to pointers; i.e. arrays */
1338
typedef png_byte FAR * FAR * png_bytepp;
1339
typedef png_uint_32 FAR * FAR * png_uint_32pp;
1340
typedef png_int_32 FAR * FAR * png_int_32pp;
1341
typedef png_uint_16 FAR * FAR * png_uint_16pp;
1342
typedef png_int_16 FAR * FAR * png_int_16pp;
1343
typedef PNG_CONST char FAR * FAR * png_const_charpp;
1344
typedef char FAR * FAR * png_charpp;
1345
typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
1346
#ifdef PNG_FLOATING_POINT_SUPPORTED
1347
typedef double FAR * FAR * png_doublepp;
1350
/* Pointers to pointers to pointers; i.e., pointer to array */
1351
typedef char FAR * FAR * FAR * png_charppp;
1353
#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
1354
/* SPC - Is this stuff deprecated? */
1355
/* It'll be removed as of libpng-1.4.0 - GR-P */
1356
/* libpng typedefs for types in zlib. If zlib changes
1357
* or another compression library is used, then change these.
1358
* Eliminates need to change all the source files.
1360
typedef charf * png_zcharp;
1361
typedef charf * FAR * png_zcharpp;
1362
typedef z_stream FAR * png_zstreamp;
1363
#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
1366
* Define PNG_BUILD_DLL if the module being built is a Windows
1369
* Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
1370
* It is equivalent to Microsoft predefined macro _DLL that is
1371
* automatically defined when you compile using the share
1372
* version of the CRT (C Run-Time library)
1374
* The cygwin mods make this behavior a little different:
1375
* Define PNG_BUILD_DLL if you are building a dll for use with cygwin
1376
* Define PNG_STATIC if you are building a static library for use with cygwin,
1377
* -or- if you are building an application that you want to link to the
1379
* PNG_USE_DLL is defined by default (no user action needed) unless one of
1380
* the other flags is defined.
1383
#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
1386
/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
1387
* When building a static lib, default to no GLOBAL ARRAYS, but allow
1388
* command-line override
1392
# ifdef PNG_USE_GLOBAL_ARRAYS
1393
# undef PNG_USE_GLOBAL_ARRAYS
1395
# ifndef PNG_USE_LOCAL_ARRAYS
1396
# define PNG_USE_LOCAL_ARRAYS
1399
# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
1400
# ifdef PNG_USE_GLOBAL_ARRAYS
1401
# undef PNG_USE_GLOBAL_ARRAYS
1405
# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
1406
# define PNG_USE_LOCAL_ARRAYS
1410
/* Do not use global arrays (helps with building DLL's)
1411
* They are no longer used in libpng itself, since version 1.0.5c,
1412
* but might be required for some pre-1.0.5c applications.
1414
#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
1415
# if defined(PNG_NO_GLOBAL_ARRAYS) || \
1416
(defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
1417
# define PNG_USE_LOCAL_ARRAYS
1419
# define PNG_USE_GLOBAL_ARRAYS
1425
# define PNGAPI __cdecl
1430
/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
1431
* you may get warnings regarding the linkage of png_zalloc and png_zfree.
1432
* Don't ignore those warnings; you must also reset the default calling
1433
* convention in your compiler to match your PNGAPI, and you must build
1434
* zlib and your applications the same way you build libpng.
1437
#if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
1438
# ifndef PNG_NO_MODULEDEF
1439
# define PNG_NO_MODULEDEF
1443
#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
1447
#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
1448
(( defined(_Windows) || defined(_WINDOWS) || \
1449
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
1452
# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
1453
# define PNGAPI __cdecl
1455
# define PNGAPI _cdecl
1459
# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
1460
0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
1466
# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol
1467
# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol
1469
/* Borland/Microsoft */
1470
# if defined(_MSC_VER) || defined(__BORLANDC__)
1471
# if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
1472
# define PNG_EXPORT PNG_EXPORT_TYPE1
1474
# define PNG_EXPORT PNG_EXPORT_TYPE2
1475
# ifdef PNG_BUILD_DLL
1476
# define PNG_IMPEXP __export
1478
# define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
1480
# endif /* Exists in Borland C++ for
1481
C++ classes (== huge) */
1486
# ifdef PNG_BUILD_DLL
1487
# define PNG_IMPEXP __declspec(dllexport)
1489
# define PNG_IMPEXP __declspec(dllimport)
1492
# endif /* PNG_IMPEXP */
1493
#else /* !(DLL || non-cygwin WINDOWS) */
1494
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
1496
# define PNGAPI _System
1499
# if 0 /* ... other platforms, with other meanings */
1511
#ifdef PNG_BUILDSYMS
1513
# define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
1515
# ifdef PNG_USE_GLOBAL_ARRAYS
1516
# ifndef PNG_EXPORT_VAR
1517
# define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
1523
# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
1526
#ifdef PNG_USE_GLOBAL_ARRAYS
1527
# ifndef PNG_EXPORT_VAR
1528
# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
1532
#ifdef PNG_PEDANTIC_WARNINGS
1533
# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
1534
# define PNG_PEDANTIC_WARNINGS_SUPPORTED
1538
#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
1539
/* Support for compiler specific function attributes. These are used
1540
* so that where compiler support is available incorrect use of API
1541
* functions in png.h will generate compiler warnings. Added at libpng
1545
# ifndef PNG_USE_RESULT
1546
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
1548
# ifndef PNG_NORETURN
1549
# define PNG_NORETURN __attribute__((__noreturn__))
1551
# ifndef PNG_ALLOCATED
1552
# define PNG_ALLOCATED __attribute__((__malloc__))
1555
/* This specifically protects structure members that should only be
1556
* accessed from within the library, therefore should be empty during
1559
# ifndef PNG_DEPRECATED
1560
# define PNG_DEPRECATED __attribute__((__deprecated__))
1562
# ifndef PNG_DEPSTRUCT
1563
# define PNG_DEPSTRUCT __attribute__((__deprecated__))
1565
# ifndef PNG_PRIVATE
1566
# if 0 /* Doesn't work so we use deprecated instead*/
1567
# define PNG_PRIVATE \
1568
__attribute__((warning("This function is not exported by libpng.")))
1570
# define PNG_PRIVATE \
1571
__attribute__((__deprecated__))
1573
# endif /* PNG_PRIVATE */
1574
# endif /* __GNUC__ */
1575
#endif /* PNG_PEDANTIC_WARNINGS */
1577
#ifndef PNG_DEPRECATED
1578
# define PNG_DEPRECATED /* Use of this function is deprecated */
1580
#ifndef PNG_USE_RESULT
1581
# define PNG_USE_RESULT /* The result of this function must be checked */
1583
#ifndef PNG_NORETURN
1584
# define PNG_NORETURN /* This function does not return */
1586
#ifndef PNG_ALLOCATED
1587
# define PNG_ALLOCATED /* The result of the function is new memory */
1589
#ifndef PNG_DEPSTRUCT
1590
# define PNG_DEPSTRUCT /* Access to this struct member is deprecated */
1593
# define PNG_PRIVATE /* This is a private libpng function */
1596
/* User may want to use these so they are not in PNG_INTERNAL. Any library
1597
* functions that are passed far data must be model independent.
1601
# define PNG_ABORT() abort()
1604
#ifdef PNG_SETJMP_SUPPORTED
1605
# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
1607
# define png_jmpbuf(png_ptr) \
1608
(LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
1611
#ifdef USE_FAR_KEYWORD /* memory model independent fns */
1612
/* Use this to make far-to-near assignments */
1615
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
1616
# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
1617
# define png_snprintf _fsnprintf /* Added to v 1.2.19 */
1618
# define png_strlen _fstrlen
1619
# define png_memcmp _fmemcmp /* SJT: added */
1620
# define png_memcpy _fmemcpy
1621
# define png_memset _fmemset
1622
#else /* Use the usual functions */
1623
# define CVT_PTR(ptr) (ptr)
1624
# define CVT_PTR_NOCHECK(ptr) (ptr)
1625
# ifndef PNG_NO_SNPRINTF
1627
# define png_snprintf _snprintf /* Added to v 1.2.19 */
1628
# define png_snprintf2 _snprintf
1629
# define png_snprintf6 _snprintf
1631
# define png_snprintf snprintf /* Added to v 1.2.19 */
1632
# define png_snprintf2 snprintf
1633
# define png_snprintf6 snprintf
1636
/* You don't have or don't want to use snprintf(). Caution: Using
1637
* sprintf instead of snprintf exposes your application to accidental
1638
* or malevolent buffer overflows. If you don't have snprintf()
1639
* as a general rule you should provide one (you can get one from
1640
* Portable OpenSSH).
1642
# define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
1643
# define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
1644
# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
1645
sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
1647
# define png_strlen strlen
1648
# define png_memcmp memcmp /* SJT: added */
1649
# define png_memcpy memcpy
1650
# define png_memset memset
1652
/* End of memory model independent support */
1654
/* Just a little check that someone hasn't tried to define something
1657
#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
1658
# undef PNG_ZBUF_SIZE
1659
# define PNG_ZBUF_SIZE 65536L
1662
/* Added at libpng-1.2.8 */
1663
#endif /* PNG_VERSION_INFO_ONLY */
1665
#endif /* PNGCONF_H */
added
removed
system/include/gfx/pngconf.h
