WebSVN – Kolibri OS – Blame – /contrib/menuetlibc/openjpeg/libs/png/pngconf.h

Rev	Author	Line No.	Line
4758	right-hear	1
		2	*
		3	* libpng version 1.4.4 - September 23, 2010
		4	* For conditions of distribution and use, see copyright notice in png.h
		5	* Copyright (c) 1998-2010 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
		15
		16	* are configuring libpng for a machine, you may want to read the section
		17	* starting here down to where it starts to typedef png_color, png_text,
		18	* and png_info.
		19	*/
		20
		21
		22	#define PNGCONF_H
		23
		24
		25	# include
		26	#endif
		27
		28
		29
		30
		31	* script.
		32	*/
		33	#ifdef PNG_CONFIGURE_LIBPNG
		34	# ifdef HAVE_CONFIG_H
		35	# include "config.h"
		36	# endif
		37	#endif
		38
		39
		40	* Added at libpng-1.2.8
		41	*
		42	* PNG_USER_CONFIG has to be defined on the compiler command line. This
		43	* includes the resource compiler for Windows DLL configurations.
		44	*/
		45	#ifdef PNG_USER_CONFIG
		46	# include "pngusr.h"
		47	# ifndef PNG_USER_PRIVATEBUILD
		48	# define PNG_USER_PRIVATEBUILD
		49	# endif
		50	#endif
		51
		52
		53	* If you create a private DLL you should define in "pngusr.h" the following:
		54	* #define PNG_USER_PRIVATEBUILD
		55	* the DLL was built>
		56	* e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
		57	* #define PNG_USER_DLLFNAME_POSTFIX
		58	* distinguish your DLL from those of the official release. These
		59	* correspond to the trailing letters that come after the version
		60	* number and must match your private DLL name>
		61	* e.g. // private DLL "libpng14gx.dll"
		62	* #define PNG_USER_DLLFNAME_POSTFIX "gx"
		63	*
		64	* The following macros are also at your disposal if you want to complete the
		65	* DLL VERSIONINFO structure.
		66	* - PNG_USER_VERSIONINFO_COMMENTS
		67	* - PNG_USER_VERSIONINFO_COMPANYNAME
		68	* - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
		69	*/
		70
		71
		72	# ifdef SPECIALBUILD
		73	# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
		74	are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
		75	# endif
		76
		77
		78	# pragma message("PRIVATEBUILD is deprecated.\
		79	Use PNG_USER_PRIVATEBUILD instead.")
		80	# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
		81	# endif
		82	#endif /* __STDC__ */
		83
		84
		85
		86
		87
		88
		89	* an IDAT chunk. Make this whatever size you feel is best for your
		90	* machine. One of these will be allocated per png_struct. When this
		91	* is full, it writes the data to the disk, and does some other
		92	* calculations. Making this an extremely small size will slow
		93	* the library down, but you may want to experiment to determine
		94	* where it becomes significant, if you are concerned with memory
		95	* usage. Note that zlib allocates at least 32Kb also. For readers,
		96	* this describes the size of the buffer available to read the data in.
		97	* Unless this gets smaller than the size of a row (compressed),
		98	* it should not make much difference how big this is.
		99	*/
		100
		101
		102	# define PNG_ZBUF_SIZE 8192
		103	#endif
		104
		105
		106
		107
		108	# define PNG_READ_SUPPORTED
		109	#endif
		110
		111
		112
		113
		114	# define PNG_WRITE_SUPPORTED
		115	#endif
		116
		117
		118	#ifdef PNG_ALLOW_BENIGN_ERRORS
		119	# define png_benign_error png_warning
		120	# define png_chunk_benign_error png_chunk_warning
		121	#else
		122	# ifndef PNG_BENIGN_ERRORS_SUPPORTED
		123	# define png_benign_error png_error
		124	# define png_chunk_benign_error png_chunk_error
		125	# endif
		126	#endif
		127
		128
		129	#if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED)
		130	# define PNG_WARNINGS_SUPPORTED
		131	#endif
		132
		133
		134	#if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED)
		135	# define PNG_ERROR_TEXT_SUPPORTED
		136	#endif
		137
		138
		139	#if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED)
		140	# define PNG_CHECK_cHRM_SUPPORTED
		141	#endif
		142
		143
		144	#if !defined(PNG_NO_ALIGNED_MEMORY) && !defined(PNG_ALIGNED_MEMORY_SUPPORTED)
		145	# define PNG_ALIGNED_MEMORY_SUPPORTED
		146	#endif
		147
		148
		149	support PNGs that are embedded in MNG datastreams */
		150	#ifndef PNG_NO_MNG_FEATURES
		151	# ifndef PNG_MNG_FEATURES_SUPPORTED
		152	# define PNG_MNG_FEATURES_SUPPORTED
		153	# endif
		154	#endif
		155
		156
		157	#ifndef PNG_NO_FLOATING_POINT_SUPPORTED
		158	# ifndef PNG_FLOATING_POINT_SUPPORTED
		159	# define PNG_FLOATING_POINT_SUPPORTED
		160	# endif
		161	#endif
		162
		163
		164	in libpng and png_calloc() is always present)
		165	*/
		166	#define PNG_CALLOC_SUPPORTED
		167
		168
		169	* than 64K of memory at once, uncomment this. While libpng will not
		170	* normally need that much memory in a chunk (unless you load up a very
		171	* large file), zlib needs to know how big of a chunk it can use, and
		172	* libpng thus makes sure to check any memory allocation to verify it
		173	* will fit into memory.
		174	#define PNG_MAX_MALLOC_64K
		175	*/
		176	#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
		177	# define PNG_MAX_MALLOC_64K
		178	#endif
		179
		180
		181	* 'Normal' png-on-win32 defines/defaults:
		182	* PNG_BUILD_DLL -- building dll
		183	* PNG_USE_DLL -- building an application, linking to dll
		184	* (no define) -- building static library, or building an
		185	* application and linking to the static lib
		186	* 'Cygwin' defines/defaults:
		187	* PNG_BUILD_DLL -- (ignored) building the dll
		188	* (no define) -- (ignored) building an application, linking to the dll
		189	* PNG_STATIC -- (ignored) building the static lib, or building an
		190	* application that links to the static lib.
		191	* ALL_STATIC -- (ignored) building various static libs, or building an
		192	* application that links to the static libs.
		193	* Thus,
		194	* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
		195	* this bit of #ifdefs will define the 'correct' config variables based on
		196	* that. If a cygwin user wants to define 'PNG_USE_DLL' that's okay, but
		197	* unnecessary.
		198	*
		199	* Also, the precedence order is:
		200	* ALL_STATIC (since we can't #undef something outside our namespace)
		201	* PNG_BUILD_DLL
		202	* PNG_STATIC
		203	* (nothing) == PNG_USE_DLL
		204	*
		205	* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
		206	* of auto-import in binutils, we no longer need to worry about
		207	* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
		208	* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
		209	* to __declspec() stuff. However, we DO need to worry about
		210	* PNG_BUILD_DLL and PNG_STATIC because those change some defaults
		211	* such as CONSOLE_IO.
		212	*/
		213	#ifdef __CYGWIN__
		214	# ifdef ALL_STATIC
		215	# ifdef PNG_BUILD_DLL
		216	# undef PNG_BUILD_DLL
		217	# endif
		218	# ifdef PNG_USE_DLL
		219	# undef PNG_USE_DLL
		220	# endif
		221	# ifdef PNG_DLL
		222	# undef PNG_DLL
		223	# endif
		224	# ifndef PNG_STATIC
		225	# define PNG_STATIC
		226	# endif
		227	# else
		228	# ifdef PNG_BUILD_DLL
		229	# ifdef PNG_STATIC
		230	# undef PNG_STATIC
		231	# endif
		232	# ifdef PNG_USE_DLL
		233	# undef PNG_USE_DLL
		234	# endif
		235	# ifndef PNG_DLL
		236	# define PNG_DLL
		237	# endif
		238	# else
		239	# ifdef PNG_STATIC
		240	# ifdef PNG_USE_DLL
		241	# undef PNG_USE_DLL
		242	# endif
		243	# ifdef PNG_DLL
		244	# undef PNG_DLL
		245	# endif
		246	# else
		247	# ifndef PNG_USE_DLL
		248	# define PNG_USE_DLL
		249	# endif
		250	# ifndef PNG_DLL
		251	# define PNG_DLL
		252	# endif
		253	# endif
		254	# endif
		255	# endif
		256	#endif
		257
		258
		259	* and thus don't have or would rather us not use the stdio types:
		260	* stdin, stdout, and stderr. The only one currently used is stderr
		261	* in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
		262	* prevent these from being compiled and used. #defining PNG_NO_STDIO
		263	* will also prevent these, plus will prevent the entire set of stdio
		264	* macros and functions (FILE *, printf, etc.) from being compiled and used,
		265	* unless (PNG_DEBUG > 0) has been #defined.
		266	*
		267	* #define PNG_NO_CONSOLE_IO
		268	* #define PNG_NO_STDIO
		269	*/
		270
		271
		272	# define PNG_NO_CONSOLE_IO
		273	# define PNG_NO_STDIO
		274	# define PNG_NO_TIME_RFC1123
		275	# ifdef PNG_DEBUG
		276	# undef PNG_DEBUG
		277	# endif
		278	#endif
		279
		280
		281	# define PNG_STDIO_SUPPORTED
		282	#endif
		283
		284
		285	# if !defined(PNG_CONSOLE_IO_SUPPORTED) && !defined(PNG_NO_CONSOLE_IO)
		286	# define PNG_NO_CONSOLE_IO
		287	# endif
		288	#endif
		289
		290
		291	# ifndef PNG_NO_CONSOLE_IO
		292	# define PNG_NO_CONSOLE_IO
		293	# endif
		294	# ifdef PNG_DEBUG
		295	# if (PNG_DEBUG > 0)
		296	# include
		297	# endif
		298	# endif
		299	# else
		300	# include
		301	# endif
		302
		303
		304	# define PNG_CONSOLE_IO_SUPPORTED
		305	#endif
		306
		307
		308	* prototypes (ie K&R style headers). If your compiler does not handle
		309	* function prototypes, define this macro and use the included ansi2knr.
		310	* I've always been able to use _NO_PROTO as the indicator, but you may
		311	* need to drag the empty declaration out in front of here, or change the
		312	* ifdef to suit your own needs.
		313	*/
		314	#ifndef PNGARG
		315
		316
		317	# define PNGARG(arglist) OF(arglist)
		318	#else
		319
		320
		321	# define PNGARG(arglist) ()
		322	#else
		323	# define PNGARG(arglist) arglist
		324	#endif /* _NO_PROTO */
		325
		326
		327
		328
		329
		330
		331	* just __MWERKS__ is not good enough, because the Codewarrior is now used
		332	* on non-Mac platforms.
		333	*/
		334	#ifndef MACOS
		335	# if (defined(__MWERKS__) && defined(macintosh)) \|\| defined(applec) \|\| \
		336	defined(THINK_C) \|\| defined(__SC__) \|\| defined(TARGET_OS_MAC)
		337	# define MACOS
		338	# endif
		339	#endif
		340
		341
		342	#if !defined(MACOS) && !defined(RISCOS)
		343	# include
		344	#endif
		345
		346
		347	#if !defined(PNG_NO_SETJMP) && \
		348	!defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
		349	# define PNG_SETJMP_SUPPORTED
		350	#endif
		351
		352
		353	/* This is an attempt to force a single setjmp behaviour on Linux. If
		354	* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
		355	*
		356	* You can bypass this test if you know that your application uses exactly
		357	* the same setjmp.h that was included when libpng was built. Only define
		358	* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
		359	* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
		360	* while building a separate libpng library for general use.
		361	*/
		362
		363
		364	# ifdef __linux__
		365	# ifdef _BSD_SOURCE
		366	# define PNG_SAVE_BSD_SOURCE
		367	# undef _BSD_SOURCE
		368	# endif
		369	# ifdef _SETJMP_H
		370	/* If you encounter a compiler error here, see the explanation
		371	* near the end of INSTALL.
		372	*/
		373	__pngconf.h__ in libpng already includes setjmp.h;
		374	__dont__ include it again.;
		375	# endif
		376	# endif /* __linux__ */
		377	# endif /* PNG_SKIP_SETJMP_CHECK */
		378
		379
		380	# include
		381
		382
		383	# ifdef PNG_SAVE_BSD_SOURCE
		384	# ifdef _BSD_SOURCE
		385	# undef _BSD_SOURCE
		386	# endif
		387	# define _BSD_SOURCE
		388	# undef PNG_SAVE_BSD_SOURCE
		389	# endif
		390	# endif /* __linux__ */
		391	#endif /* PNG_SETJMP_SUPPORTED */
		392
		393
		394	# include
		395	#else
		396	# include
		397	#endif
		398
		399
		400
		401
		402	* a largish chunk of memory (32K), those who are not as concerned
		403	* with quantizing quality can decrease some or all of these.
		404	*/
		405
		406
		407	* These migration aids will be removed from libpng-1.5.0.
		408	*/
		409	#ifdef PNG_DITHER_RED_BITS
		410	# define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS
		411	#endif
		412	#ifdef PNG_DITHER_GREEN_BITS
		413	# define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS
		414	#endif
		415	#ifdef PNG_DITHER_BLUE_BITS
		416	# define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS
		417	#endif
		418
		419
		420	# define PNG_QUANTIZE_RED_BITS 5
		421	#endif
		422	#ifndef PNG_QUANTIZE_GREEN_BITS
		423	# define PNG_QUANTIZE_GREEN_BITS 5
		424	#endif
		425	#ifndef PNG_QUANTIZE_BLUE_BITS
		426	# define PNG_QUANTIZE_BLUE_BITS 5
		427	#endif
		428
		429
		430	* are only interested in 8 bits anyway. Increasing this value
		431	* results in more memory being used, and more pow() functions
		432	* being called to fill in the gamma tables. Don't set this value
		433	* less then 8, and even that may not work (I haven't tested it).
		434	*/
		435
		436
		437	# define PNG_MAX_GAMMA_8 11
		438	#endif
		439
		440
		441	* we actually start doing gamma conversion.
		442	*/
		443	#ifndef PNG_GAMMA_THRESHOLD
		444	# define PNG_GAMMA_THRESHOLD 0.05
		445	#endif
		446
		447
		448	* and warning message functions, so some compilers won't complain.
		449	* If you do not want to use const, define PNG_NO_CONST.
		450	*/
		451
		452
		453	# ifndef PNG_NO_CONST
		454	# define PNG_CONST const
		455	# else
		456	# define PNG_CONST
		457	# endif
		458	#endif
		459
		460
		461	* library that you will not be using. I wish I could figure out how to
		462	* automate this, but I can't do that without making it seriously hard
		463	* on the users. So if you are not using an ability, change the #define
		464	* to an #undef, or pass in PNG_NO_feature and that part of the library
		465	* will not be compiled.
		466
		467
		468	* ability is defined here. Some of these depend upon some others being
		469	* defined. I haven't figured out all the interactions here, so you may
		470	* have to experiment awhile to get everything to compile. If you are
		471	* creating or using a shared library, you probably shouldn't touch this,
		472	* as it will affect the size of the structures, and this will cause bad
		473	* things to happen if the library and/or application ever change.
		474	*/
		475
		476
		477
		478
		479	* to turn it off with PNG_NO_READ\|WRITE_TRANSFORMS on the compile line,
		480	* then pick and choose which ones to define without having to edit this
		481	* file. It is safe to use the PNG_NO_READ\|WRITE_TRANSFORMS
		482	* if you only want to have a png-compliant reader/writer but don't need
		483	* any of the extra transformations. This saves about 80 kbytes in a
		484	* typical installation of the library. (PNG_NO_* form added in version
		485	* 1.0.1c, for consistency; PNG_*_TRANSFORMS_NOT_SUPPORTED deprecated in
		486	* 1.4.0)
		487	*/
		488
		489
		490	#if !defined(PNG_FLOATING_POINT_SUPPORTED) \|\| \
		491	!defined(PNG_NO_FIXED_POINT_SUPPORTED)
		492	# define PNG_FIXED_POINT_SUPPORTED
		493	#endif
		494
		495
		496
		497
		498	#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
		499	!defined(PNG_NO_READ_TRANSFORMS)
		500	# define PNG_READ_TRANSFORMS_SUPPORTED
		501	#endif
		502
		503
		504	# ifndef PNG_NO_READ_EXPAND
		505	# define PNG_READ_EXPAND_SUPPORTED
		506	# endif
		507	# ifndef PNG_NO_READ_SHIFT
		508	# define PNG_READ_SHIFT_SUPPORTED
		509	# endif
		510	# ifndef PNG_NO_READ_PACK
		511	# define PNG_READ_PACK_SUPPORTED
		512	# endif
		513	# ifndef PNG_NO_READ_BGR
		514	# define PNG_READ_BGR_SUPPORTED
		515	# endif
		516	# ifndef PNG_NO_READ_SWAP
		517	# define PNG_READ_SWAP_SUPPORTED
		518	# endif
		519	# ifndef PNG_NO_READ_PACKSWAP
		520	# define PNG_READ_PACKSWAP_SUPPORTED
		521	# endif
		522	# ifndef PNG_NO_READ_INVERT
		523	# define PNG_READ_INVERT_SUPPORTED
		524	# endif
		525	# ifndef PNG_NO_READ_QUANTIZE
		526	/* Prior to libpng-1.4.0 this was PNG_READ_DITHER_SUPPORTED */
		527	# ifndef PNG_NO_READ_DITHER /* This migration aid will be removed */
		528	# define PNG_READ_QUANTIZE_SUPPORTED
		529	# endif
		530	# endif
		531	# ifndef PNG_NO_READ_BACKGROUND
		532	# define PNG_READ_BACKGROUND_SUPPORTED
		533	# endif
		534	# ifndef PNG_NO_READ_16_TO_8
		535	# define PNG_READ_16_TO_8_SUPPORTED
		536	# endif
		537	# ifndef PNG_NO_READ_FILLER
		538	# define PNG_READ_FILLER_SUPPORTED
		539	# endif
		540	# ifndef PNG_NO_READ_GAMMA
		541	# define PNG_READ_GAMMA_SUPPORTED
		542	# endif
		543	# ifndef PNG_NO_READ_GRAY_TO_RGB
		544	# define PNG_READ_GRAY_TO_RGB_SUPPORTED
		545	# endif
		546	# ifndef PNG_NO_READ_SWAP_ALPHA
		547	# define PNG_READ_SWAP_ALPHA_SUPPORTED
		548	# endif
		549	# ifndef PNG_NO_READ_INVERT_ALPHA
		550	# define PNG_READ_INVERT_ALPHA_SUPPORTED
		551	# endif
		552	# ifndef PNG_NO_READ_STRIP_ALPHA
		553	# define PNG_READ_STRIP_ALPHA_SUPPORTED
		554	# endif
		555	# ifndef PNG_NO_READ_USER_TRANSFORM
		556	# define PNG_READ_USER_TRANSFORM_SUPPORTED
		557	# endif
		558	# ifndef PNG_NO_READ_RGB_TO_GRAY
		559	# define PNG_READ_RGB_TO_GRAY_SUPPORTED
		560	# endif
		561	#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
		562
		563
		564	#if !defined(PNG_NO_PROGRESSIVE_READ) && \
		565	!defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */
		566	# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
		567	#endif /* about interlacing capability! You'll */
		568	/* still have interlacing unless you change the following define: */
		569
		570
		571
		572
		573	#if !defined(PNG_NO_SEQUENTIAL_READ) && \
		574	!defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \
		575	!defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED)
		576	# define PNG_SEQUENTIAL_READ_SUPPORTED
		577	#endif
		578
		579
		580	# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
		581	# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
		582	# endif
		583	#endif
		584
		585
		586	defined(PNG_READ_pCAL_SUPPORTED)
		587	# ifndef PNG_GET_INT_32_SUPPORTED
		588	# define PNG_GET_INT_32_SUPPORTED
		589	# endif
		590	#endif
		591
		592
		593
		594
		595
		596
		597	#if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
		598	!defined(PNG_NO_WRITE_TRANSFORMS)
		599	# define PNG_WRITE_TRANSFORMS_SUPPORTED
		600	#endif
		601
		602
		603	# ifndef PNG_NO_WRITE_SHIFT
		604	# define PNG_WRITE_SHIFT_SUPPORTED
		605	# endif
		606	# ifndef PNG_NO_WRITE_PACK
		607	# define PNG_WRITE_PACK_SUPPORTED
		608	# endif
		609	# ifndef PNG_NO_WRITE_BGR
		610	# define PNG_WRITE_BGR_SUPPORTED
		611	# endif
		612	# ifndef PNG_NO_WRITE_SWAP
		613	# define PNG_WRITE_SWAP_SUPPORTED
		614	# endif
		615	# ifndef PNG_NO_WRITE_PACKSWAP
		616	# define PNG_WRITE_PACKSWAP_SUPPORTED
		617	# endif
		618	# ifndef PNG_NO_WRITE_INVERT
		619	# define PNG_WRITE_INVERT_SUPPORTED
		620	# endif
		621	# ifndef PNG_NO_WRITE_FILLER
		622	# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */
		623	# endif
		624	# ifndef PNG_NO_WRITE_SWAP_ALPHA
		625	# define PNG_WRITE_SWAP_ALPHA_SUPPORTED
		626	# endif
		627	# ifndef PNG_NO_WRITE_INVERT_ALPHA
		628	# define PNG_WRITE_INVERT_ALPHA_SUPPORTED
		629	# endif
		630	# ifndef PNG_NO_WRITE_USER_TRANSFORM
		631	# define PNG_WRITE_USER_TRANSFORM_SUPPORTED
		632	# endif
		633	#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
		634
		635
		636	!defined(PNG_WRITE_INTERLACING_SUPPORTED)
		637	/* This is not required for PNG-compliant encoders, but can cause
		638	* trouble if left undefined
		639	*/
		640	# define PNG_WRITE_INTERLACING_SUPPORTED
		641	#endif
		642
		643
		644	!defined(PNG_WRITE_WEIGHTED_FILTER) && \
		645	defined(PNG_FLOATING_POINT_SUPPORTED)
		646	# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
		647	#endif
		648
		649
		650	# define PNG_WRITE_FLUSH_SUPPORTED
		651	#endif
		652
		653
		654	defined(PNG_WRITE_pCAL_SUPPORTED)
		655	# ifndef PNG_SAVE_INT_32_SUPPORTED
		656	# define PNG_SAVE_INT_32_SUPPORTED
		657	# endif
		658	#endif
		659
		660
		661
		662
		663
		664
		665	defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
		666	# ifndef PNG_NO_USER_TRANSFORM_PTR
		667	# define PNG_USER_TRANSFORM_PTR_SUPPORTED
		668	# endif
		669	#endif
		670
		671
		672	# define PNG_TIME_RFC1123_SUPPORTED
		673	#endif
		674
		675
		676	* info pointer (added in version 0.99)
		677	* png_get_image_width()
		678	* png_get_image_height()
		679	* png_get_bit_depth()
		680	* png_get_color_type()
		681	* png_get_compression_type()
		682	* png_get_filter_type()
		683	* png_get_interlace_type()
		684	* png_get_pixel_aspect_ratio()
		685	* png_get_pixels_per_meter()
		686	* png_get_x_offset_pixels()
		687	* png_get_y_offset_pixels()
		688	* png_get_x_offset_microns()
		689	* png_get_y_offset_microns()
		690	*/
		691	#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
		692	# define PNG_EASY_ACCESS_SUPPORTED
		693	#endif
		694
		695
		696	#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
		697	# define PNG_USER_MEM_SUPPORTED
		698	#endif
		699
		700
		701	#ifndef PNG_NO_SET_USER_LIMITS
		702	# ifndef PNG_SET_USER_LIMITS_SUPPORTED
		703	# define PNG_SET_USER_LIMITS_SUPPORTED
		704	# endif
		705	/* Feature added at libpng-1.4.0, this flag added at 1.4.1 */
		706	# ifndef PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
		707	# define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
		708	# endif
		709	/* Feature added at libpng-1.4.1, this flag added at 1.4.1 */
		710	# ifndef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
		711	# define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
		712	# endif
		713	#endif
		714
		715
		716	#ifndef PNG_USER_LIMITS_SUPPORTED
		717	# ifndef PNG_NO_USER_LIMITS
		718	# define PNG_USER_LIMITS_SUPPORTED
		719	# endif
		720	#endif
		721
		722
		723	* how large, set these two limits to 0x7fffffffL
		724	*/
		725	#ifndef PNG_USER_WIDTH_MAX
		726	# define PNG_USER_WIDTH_MAX 1000000L
		727	#endif
		728	#ifndef PNG_USER_HEIGHT_MAX
		729	# define PNG_USER_HEIGHT_MAX 1000000L
		730	#endif
		731
		732
		733	* how large, set these two limits to 0.
		734	*/
		735	#ifndef PNG_USER_CHUNK_CACHE_MAX
		736	# define PNG_USER_CHUNK_CACHE_MAX 0
		737	#endif
		738
		739
		740	#ifndef PNG_USER_CHUNK_MALLOC_MAX
		741	# define PNG_USER_CHUNK_MALLOC_MAX 0
		742	#endif
		743
		744
		745	#if !defined(PNG_NO_IO_STATE) && !defined(PNG_IO_STATE_SUPPORTED)
		746	# define PNG_IO_STATE_SUPPORTED
		747	#endif
		748
		749
		750	# define PNG_LITERAL_SHARP 0x23
		751	#endif
		752	#ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
		753	# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b
		754	#endif
		755	#ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
		756	# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d
		757	#endif
		758	#ifndef PNG_STRING_NEWLINE
		759	#define PNG_STRING_NEWLINE "\n"
		760	#endif
		761
		762
		763
		764
		765	/*
		766	#ifdef PNG_READ_SUPPORTED
		767	# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
		768	# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
		769	# endif
		770	#endif
		771	*/
		772
		773
		774	/* some testing */
		775	/*
		776	#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
		777	# define PNG_READ_BIG_ENDIAN_SUPPORTED
		778	#endif
		779	*/
		780
		781
		782	# define PNG_USE_READ_MACROS
		783	#endif
		784
		785
		786
		787
		788	!defined(PNG_POINTER_INDEXING_SUPPORTED)
		789	# define PNG_POINTER_INDEXING_SUPPORTED
		790	#endif
		791
		792
		793
		794	* ones that allocate memory may be expecially important (hIST,
		795	* tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
		796	* a bit smaller.
		797	*/
		798
		799
		800	* iTXt support was added. iTXt support was turned off by default through
		801	* libpng-1.2.x, to support old apps that malloc the png_text structure
		802	* instead of calling png_set_text() and letting libpng malloc it. It
		803	* was turned on by default in libpng-1.4.0.
		804	*/
		805
		806
		807	#if defined(PNG_READ_SUPPORTED) && \
		808	!defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
		809	!defined(PNG_NO_READ_ANCILLARY_CHUNKS)
		810	# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
		811	#endif
		812
		813
		814	#if defined(PNG_WRITE_SUPPORTED) && \
		815	!defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
		816	!defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
		817	# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
		818	#endif
		819
		820
		821
		822
		823	# define PNG_NO_READ_iTXt
		824	# define PNG_NO_READ_tEXt
		825	# define PNG_NO_READ_zTXt
		826	#endif
		827
		828
		829	# define PNG_READ_bKGD_SUPPORTED
		830	# define PNG_bKGD_SUPPORTED
		831	#endif
		832	#ifndef PNG_NO_READ_cHRM
		833	# define PNG_READ_cHRM_SUPPORTED
		834	# define PNG_cHRM_SUPPORTED
		835	#endif
		836	#ifndef PNG_NO_READ_gAMA
		837	# define PNG_READ_gAMA_SUPPORTED
		838	# define PNG_gAMA_SUPPORTED
		839	#endif
		840	#ifndef PNG_NO_READ_hIST
		841	# define PNG_READ_hIST_SUPPORTED
		842	# define PNG_hIST_SUPPORTED
		843	#endif
		844	#ifndef PNG_NO_READ_iCCP
		845	# define PNG_READ_iCCP_SUPPORTED
		846	# define PNG_iCCP_SUPPORTED
		847	#endif
		848	#ifndef PNG_NO_READ_iTXt
		849	# ifndef PNG_READ_iTXt_SUPPORTED
		850	# define PNG_READ_iTXt_SUPPORTED
		851	# endif
		852	# ifndef PNG_iTXt_SUPPORTED
		853	# define PNG_iTXt_SUPPORTED
		854	# endif
		855	#endif
		856	#ifndef PNG_NO_READ_oFFs
		857	# define PNG_READ_oFFs_SUPPORTED
		858	# define PNG_oFFs_SUPPORTED
		859	#endif
		860	#ifndef PNG_NO_READ_pCAL
		861	# define PNG_READ_pCAL_SUPPORTED
		862	# define PNG_pCAL_SUPPORTED
		863	#endif
		864	#ifndef PNG_NO_READ_sCAL
		865	# define PNG_READ_sCAL_SUPPORTED
		866	# define PNG_sCAL_SUPPORTED
		867	#endif
		868	#ifndef PNG_NO_READ_pHYs
		869	# define PNG_READ_pHYs_SUPPORTED
		870	# define PNG_pHYs_SUPPORTED
		871	#endif
		872	#ifndef PNG_NO_READ_sBIT
		873	# define PNG_READ_sBIT_SUPPORTED
		874	# define PNG_sBIT_SUPPORTED
		875	#endif
		876	#ifndef PNG_NO_READ_sPLT
		877	# define PNG_READ_sPLT_SUPPORTED
		878	# define PNG_sPLT_SUPPORTED
		879	#endif
		880	#ifndef PNG_NO_READ_sRGB
		881	# define PNG_READ_sRGB_SUPPORTED
		882	# define PNG_sRGB_SUPPORTED
		883	#endif
		884	#ifndef PNG_NO_READ_tEXt
		885	# define PNG_READ_tEXt_SUPPORTED
		886	# define PNG_tEXt_SUPPORTED
		887	#endif
		888	#ifndef PNG_NO_READ_tIME
		889	# define PNG_READ_tIME_SUPPORTED
		890	# define PNG_tIME_SUPPORTED
		891	#endif
		892	#ifndef PNG_NO_READ_tRNS
		893	# define PNG_READ_tRNS_SUPPORTED
		894	# define PNG_tRNS_SUPPORTED
		895	#endif
		896	#ifndef PNG_NO_READ_zTXt
		897	# define PNG_READ_zTXt_SUPPORTED
		898	# define PNG_zTXt_SUPPORTED
		899	#endif
		900	#ifndef PNG_NO_READ_OPT_PLTE
		901	# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
		902	#endif /* optional PLTE chunk in RGB and RGBA images */
		903	#if defined(PNG_READ_iTXt_SUPPORTED) \|\| defined(PNG_READ_tEXt_SUPPORTED) \|\| \
		904	defined(PNG_READ_zTXt_SUPPORTED)
		905	# define PNG_READ_TEXT_SUPPORTED
		906	# define PNG_TEXT_SUPPORTED
		907	#endif
		908
		909
		910
		911
		912	# ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
		913	# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
		914	# endif
		915	# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
		916	# define PNG_UNKNOWN_CHUNKS_SUPPORTED
		917	# endif
		918	# ifndef PNG_READ_USER_CHUNKS_SUPPORTED
		919	# define PNG_READ_USER_CHUNKS_SUPPORTED
		920	# endif
		921	#endif
		922	#ifndef PNG_NO_READ_USER_CHUNKS
		923	# ifndef PNG_READ_USER_CHUNKS_SUPPORTED
		924	# define PNG_READ_USER_CHUNKS_SUPPORTED
		925	# endif
		926	# ifndef PNG_USER_CHUNKS_SUPPORTED
		927	# define PNG_USER_CHUNKS_SUPPORTED
		928	# endif
		929	#endif
		930	#ifndef PNG_NO_HANDLE_AS_UNKNOWN
		931	# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
		932	# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
		933	# endif
		934	#endif
		935
		936
		937	#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
		938
		939
		940	# define PNG_NO_WRITE_iTXt
		941	# define PNG_NO_WRITE_tEXt
		942	# define PNG_NO_WRITE_zTXt
		943	#endif
		944	#ifndef PNG_NO_WRITE_bKGD
		945	# define PNG_WRITE_bKGD_SUPPORTED
		946	# ifndef PNG_bKGD_SUPPORTED
		947	# define PNG_bKGD_SUPPORTED
		948	# endif
		949	#endif
		950	#ifndef PNG_NO_WRITE_cHRM
		951	# define PNG_WRITE_cHRM_SUPPORTED
		952	# ifndef PNG_cHRM_SUPPORTED
		953	# define PNG_cHRM_SUPPORTED
		954	# endif
		955	#endif
		956	#ifndef PNG_NO_WRITE_gAMA
		957	# define PNG_WRITE_gAMA_SUPPORTED
		958	# ifndef PNG_gAMA_SUPPORTED
		959	# define PNG_gAMA_SUPPORTED
		960	# endif
		961	#endif
		962	#ifndef PNG_NO_WRITE_hIST
		963	# define PNG_WRITE_hIST_SUPPORTED
		964	# ifndef PNG_hIST_SUPPORTED
		965	# define PNG_hIST_SUPPORTED
		966	# endif
		967	#endif
		968	#ifndef PNG_NO_WRITE_iCCP
		969	# define PNG_WRITE_iCCP_SUPPORTED
		970	# ifndef PNG_iCCP_SUPPORTED
		971	# define PNG_iCCP_SUPPORTED
		972	# endif
		973	#endif
		974	#ifndef PNG_NO_WRITE_iTXt
		975	# ifndef PNG_WRITE_iTXt_SUPPORTED
		976	# define PNG_WRITE_iTXt_SUPPORTED
		977	# endif
		978	# ifndef PNG_iTXt_SUPPORTED
		979	# define PNG_iTXt_SUPPORTED
		980	# endif
		981	#endif
		982	#ifndef PNG_NO_WRITE_oFFs
		983	# define PNG_WRITE_oFFs_SUPPORTED
		984	# ifndef PNG_oFFs_SUPPORTED
		985	# define PNG_oFFs_SUPPORTED
		986	# endif
		987	#endif
		988	#ifndef PNG_NO_WRITE_pCAL
		989	# define PNG_WRITE_pCAL_SUPPORTED
		990	# ifndef PNG_pCAL_SUPPORTED
		991	# define PNG_pCAL_SUPPORTED
		992	# endif
		993	#endif
		994	#ifndef PNG_NO_WRITE_sCAL
		995	# define PNG_WRITE_sCAL_SUPPORTED
		996	# ifndef PNG_sCAL_SUPPORTED
		997	# define PNG_sCAL_SUPPORTED
		998	# endif
		999	#endif
		1000	#ifndef PNG_NO_WRITE_pHYs
		1001	# define PNG_WRITE_pHYs_SUPPORTED
		1002	# ifndef PNG_pHYs_SUPPORTED
		1003	# define PNG_pHYs_SUPPORTED
		1004	# endif
		1005	#endif
		1006	#ifndef PNG_NO_WRITE_sBIT
		1007	# define PNG_WRITE_sBIT_SUPPORTED
		1008	# ifndef PNG_sBIT_SUPPORTED
		1009	# define PNG_sBIT_SUPPORTED
		1010	# endif
		1011	#endif
		1012	#ifndef PNG_NO_WRITE_sPLT
		1013	# define PNG_WRITE_sPLT_SUPPORTED
		1014	# ifndef PNG_sPLT_SUPPORTED
		1015	# define PNG_sPLT_SUPPORTED
		1016	# endif
		1017	#endif
		1018	#ifndef PNG_NO_WRITE_sRGB
		1019	# define PNG_WRITE_sRGB_SUPPORTED
		1020	# ifndef PNG_sRGB_SUPPORTED
		1021	# define PNG_sRGB_SUPPORTED
		1022	# endif
		1023	#endif
		1024	#ifndef PNG_NO_WRITE_tEXt
		1025	# define PNG_WRITE_tEXt_SUPPORTED
		1026	# ifndef PNG_tEXt_SUPPORTED
		1027	# define PNG_tEXt_SUPPORTED
		1028	# endif
		1029	#endif
		1030	#ifndef PNG_NO_WRITE_tIME
		1031	# define PNG_WRITE_tIME_SUPPORTED
		1032	# ifndef PNG_tIME_SUPPORTED
		1033	# define PNG_tIME_SUPPORTED
		1034	# endif
		1035	#endif
		1036	#ifndef PNG_NO_WRITE_tRNS
		1037	# define PNG_WRITE_tRNS_SUPPORTED
		1038	# ifndef PNG_tRNS_SUPPORTED
		1039	# define PNG_tRNS_SUPPORTED
		1040	# endif
		1041	#endif
		1042	#ifndef PNG_NO_WRITE_zTXt
		1043	# define PNG_WRITE_zTXt_SUPPORTED
		1044	# ifndef PNG_zTXt_SUPPORTED
		1045	# define PNG_zTXt_SUPPORTED
		1046	# endif
		1047	#endif
		1048	#if defined(PNG_WRITE_iTXt_SUPPORTED) \|\| defined(PNG_WRITE_tEXt_SUPPORTED) \|\| \
		1049	defined(PNG_WRITE_zTXt_SUPPORTED)
		1050	# define PNG_WRITE_TEXT_SUPPORTED
		1051	# ifndef PNG_TEXT_SUPPORTED
		1052	# define PNG_TEXT_SUPPORTED
		1053	# endif
		1054	#endif
		1055
		1056
		1057	# ifndef PNG_NO_CONVERT_tIME
		1058	# ifndef _WIN32_WCE
		1059	/* The "tm" structure is not supported on WindowsCE */
		1060	# ifndef PNG_CONVERT_tIME_SUPPORTED
		1061	# define PNG_CONVERT_tIME_SUPPORTED
		1062	# endif
		1063	# endif
		1064	# endif
		1065	#endif
		1066
		1067
		1068
		1069
		1070	# ifndef PNG_WRITE_FILTER_SUPPORTED
		1071	# define PNG_WRITE_FILTER_SUPPORTED
		1072	# endif
		1073	#endif
		1074
		1075
		1076	# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
		1077	# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
		1078	# define PNG_UNKNOWN_CHUNKS_SUPPORTED
		1079	# endif
		1080	#endif
		1081	#ifndef PNG_NO_HANDLE_AS_UNKNOWN
		1082	# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
		1083	# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
		1084	# endif
		1085	#endif
		1086	#endif /* PNG_WRITE_SUPPORTED */
		1087
		1088
		1089	* png_write_png() and leave the row_pointers member
		1090	* out of the info structure.
		1091	*/
		1092	#ifndef PNG_NO_INFO_IMAGE
		1093	# define PNG_INFO_IMAGE_SUPPORTED
		1094	#endif
		1095
		1096
		1097	#ifdef PNG_CONVERT_tIME_SUPPORTED
		1098	/* "time.h" functions are not supported on WindowsCE */
		1099	# include
		1100	#endif
		1101
		1102
		1103	* common platforms. The typedefs should be at least as large as the
		1104	* numbers suggest (a png_uint_32 must be at least 32 bits long), but they
		1105	* don't have to be exactly that size. Some compilers dislike passing
		1106	* unsigned shorts as function parameters, so you may be better off using
		1107	* unsigned int for png_uint_16.
		1108	*/
		1109
		1110
		1111	typedef unsigned int png_uint_32;
		1112	typedef int png_int_32;
		1113	#else
		1114	typedef unsigned long png_uint_32;
		1115	typedef long png_int_32;
		1116	#endif
		1117	typedef unsigned short png_uint_16;
		1118	typedef short png_int_16;
		1119	typedef unsigned char png_byte;
		1120
		1121
		1122	typedef unsigned int png_size_t;
		1123	#else
		1124	typedef size_t png_size_t;
		1125	#endif
		1126	#define png_sizeof(x) (sizeof (x))
		1127
		1128
		1129	* pngpriv.h header. Needs modification for other compilers besides
		1130	* MSC. Model independent support declares all arrays and pointers to be
		1131	* large using the far keyword. The zlib version used must also support
		1132	* model independent data. As of version zlib 1.0.4, the necessary changes
		1133	* have been made in zlib. The USE_FAR_KEYWORD define triggers other
		1134	* changes that are needed. (Tim Wegner)
		1135	*/
		1136
		1137
		1138	* defines FAR. (SJT)
		1139	*/
		1140	#ifdef __BORLANDC__
		1141	# if defined(__LARGE__) \|\| defined(__HUGE__) \|\| defined(__COMPACT__)
		1142	# define LDATA 1
		1143	# else
		1144	# define LDATA 0
		1145	# endif
		1146	/* GRR: why is Cygwin in here? Cygwin is not Borland C... */
		1147	# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
		1148	# define PNG_MAX_MALLOC_64K
		1149	# if (LDATA != 1)
		1150	# ifndef FAR
		1151	# define FAR __far
		1152	# endif
		1153	# define USE_FAR_KEYWORD
		1154	# endif /* LDATA != 1 */
		1155	/* Possibly useful for moving data out of default segment.
		1156	* Uncomment it if you want. Could also define FARDATA as
		1157	* const if your compiler supports it. (SJT)
		1158	# define FARDATA FAR
		1159	*/
		1160	# endif /* __WIN32__, __FLAT__, __CYGWIN__ */
		1161	#endif /* __BORLANDC__ */
		1162
		1163
		1164
		1165	* FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM,
		1166	* making reliance oncertain keywords suspect. (SJT)
		1167	*/
		1168
		1169
		1170	#ifdef FAR
		1171	# ifdef M_I86MM
		1172	# define USE_FAR_KEYWORD
		1173	# define FARDATA FAR
		1174	# include
		1175	# endif
		1176	#endif
		1177
		1178
		1179	#ifndef FAR
		1180	# define FAR
		1181	#endif
		1182
		1183
		1184	#ifndef FARDATA
		1185	# define FARDATA
		1186	#endif
		1187
		1188
		1189	to fixed-point with a multiple of 100,000, e.g., int_gamma */
		1190	typedef png_int_32 png_fixed_point;
		1191
		1192
		1193	typedef void FAR * png_voidp;
		1194	typedef png_byte FAR * png_bytep;
		1195	typedef png_uint_32 FAR * png_uint_32p;
		1196	typedef png_int_32 FAR * png_int_32p;
		1197	typedef png_uint_16 FAR * png_uint_16p;
		1198	typedef png_int_16 FAR * png_int_16p;
		1199	typedef PNG_CONST char FAR * png_const_charp;
		1200	typedef char FAR * png_charp;
		1201	typedef png_fixed_point FAR * png_fixed_point_p;
		1202
		1203
		1204	typedef FILE * png_FILE_p;
		1205	#endif
		1206
		1207
		1208	typedef double FAR * png_doublep;
		1209	#endif
		1210
		1211
		1212	typedef png_byte FAR * FAR * png_bytepp;
		1213	typedef png_uint_32 FAR * FAR * png_uint_32pp;
		1214	typedef png_int_32 FAR * FAR * png_int_32pp;
		1215	typedef png_uint_16 FAR * FAR * png_uint_16pp;
		1216	typedef png_int_16 FAR * FAR * png_int_16pp;
		1217	typedef PNG_CONST char FAR * FAR * png_const_charpp;
		1218	typedef char FAR * FAR * png_charpp;
		1219	typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
		1220	#ifdef PNG_FLOATING_POINT_SUPPORTED
		1221	typedef double FAR * FAR * png_doublepp;
		1222	#endif
		1223
		1224
		1225	typedef char FAR * FAR * FAR * png_charppp;
		1226
		1227
		1228	* LIBPNG DLL.
		1229	*
		1230	* Define PNG_USE_DLL if you want to link to the Windows LIBPNG DLL.
		1231	* It is equivalent to Microsoft predefined macro _DLL that is
		1232	* automatically defined when you compile using the share
		1233	* version of the CRT (C Run-Time library)
		1234	*
		1235	* The cygwin mods make this behavior a little different:
		1236	* Define PNG_BUILD_DLL if you are building a dll for use with cygwin
		1237	* Define PNG_STATIC if you are building a static library for use with cygwin,
		1238	* -or- if you are building an application that you want to link to the
		1239	* static library.
		1240	* PNG_USE_DLL is defined by default (no user action needed) unless one of
		1241	* the other flags is defined.
		1242	*/
		1243
		1244
		1245	# define PNG_DLL
		1246	#endif
		1247
		1248
		1249	* you may get warnings regarding the linkage of png_zalloc and png_zfree.
		1250	* Don't ignore those warnings; you must also reset the default calling
		1251	* convention in your compiler to match your PNGAPI, and you must build
		1252	* zlib and your applications the same way you build libpng.
		1253	*/
		1254
		1255
		1256	# undef PNGAPI
		1257	# define PNGAPI __cdecl
		1258	# undef PNG_IMPEXP
		1259	# define PNG_IMPEXP
		1260	#endif
		1261
		1262
		1263	# ifndef PNGAPI
		1264	# define PNGAPI
		1265	# endif
		1266	#endif
		1267
		1268
		1269	# ifndef PNG_NO_MODULEDEF
		1270	# define PNG_NO_MODULEDEF
		1271	# endif
		1272	#endif
		1273
		1274
		1275	# define PNG_IMPEXP
		1276	#endif
		1277
		1278
		1279	(( defined(_Windows) \|\| defined(_WINDOWS) \|\| \
		1280	defined(WIN32) \|\| defined(_WIN32) \|\| defined(__WIN32__) ))
		1281
		1282
		1283	# if defined(__GNUC__) \|\| (defined (_MSC_VER) && (_MSC_VER >= 800))
		1284	# define PNGAPI __cdecl
		1285	# else
		1286	# define PNGAPI _cdecl
		1287	# endif
		1288	# endif
		1289
		1290
		1291	0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
		1292
		1293	# endif
		1294
		1295
		1296
		1297
		1298	# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol
		1299
		1300
		1301	# if defined(_MSC_VER) \|\| defined(__BORLANDC__)
		1302	# if (_MSC_VER >= 800) \|\| (__BORLANDC__ >= 0x500)
		1303	# define PNG_EXPORT PNG_EXPORT_TYPE1
		1304	# else
		1305	# define PNG_EXPORT PNG_EXPORT_TYPE2
		1306	# ifdef PNG_BUILD_DLL
		1307	# define PNG_IMPEXP __export
		1308	# else
		1309	# define PNG_IMPEXP /__import / /* doesn't exist AFAIK in VC++ */
		1310	# endif /* Exists in Borland C++ for
		1311	C++ classes (== huge) */
		1312	# endif
		1313	# endif
		1314
		1315
		1316	# ifdef PNG_BUILD_DLL
		1317	# define PNG_IMPEXP __declspec(dllexport)
		1318	# else
		1319	# define PNG_IMPEXP __declspec(dllimport)
		1320	# endif
		1321	# endif
		1322	# endif /* PNG_IMPEXP */
		1323	#else /* !(DLL \|\| non-cygwin WINDOWS) */
		1324	# if (defined(__IBMC__) \|\| defined(__IBMCPP__)) && defined(__OS2__)
		1325	# ifndef PNGAPI
		1326	# define PNGAPI _System
		1327	# endif
		1328	# else
		1329	# if 0 /* ... other platforms, with other meanings */
		1330	# endif
		1331	# endif
		1332	#endif
		1333
		1334
		1335	# define PNGAPI
		1336	#endif
		1337	#ifndef PNG_IMPEXP
		1338	# define PNG_IMPEXP
		1339	#endif
		1340
		1341
		1342	# ifndef PNG_EXPORT
		1343	# define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
		1344	# endif
		1345	#endif
		1346
		1347
		1348	# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
		1349	#endif
		1350
		1351
		1352
		1353
		1354	* so that where compiler support is available incorrect use of API
		1355	* functions in png.h will generate compiler warnings.
		1356	*
		1357	* Added at libpng-1.2.41.
		1358	*/
		1359
		1360
		1361	# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
		1362	# define PNG_PEDANTIC_WARNINGS_SUPPORTED
		1363	# endif
		1364	#endif
		1365
		1366
		1367	/* Support for compiler specific function attributes. These are used
		1368	* so that where compiler support is available incorrect use of API
		1369	* functions in png.h will generate compiler warnings. Added at libpng
		1370	* version 1.2.41.
		1371	*/
		1372	# ifdef __GNUC__
		1373	# ifndef PNG_USE_RESULT
		1374	# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
		1375	# endif
		1376	# ifndef PNG_NORETURN
		1377	# define PNG_NORETURN __attribute__((__noreturn__))
		1378	# endif
		1379	# ifndef PNG_ALLOCATED
		1380	# define PNG_ALLOCATED __attribute__((__malloc__))
		1381	# endif
		1382
		1383
		1384	* accessed from within the library, therefore should be empty during
		1385	* a library build.
		1386	*/
		1387	# ifndef PNG_DEPRECATED
		1388	# define PNG_DEPRECATED __attribute__((__deprecated__))
		1389	# endif
		1390	# ifndef PNG_DEPSTRUCT
		1391	# define PNG_DEPSTRUCT __attribute__((__deprecated__))
		1392	# endif
		1393	# ifndef PNG_PRIVATE
		1394	# if 0 /* Doesn't work so we use deprecated instead*/
		1395	# define PNG_PRIVATE \
		1396	__attribute__((warning("This function is not exported by libpng.")))
		1397	# else
		1398	# define PNG_PRIVATE \
		1399	__attribute__((__deprecated__))
		1400	# endif
		1401	# endif /* PNG_PRIVATE */
		1402	# endif /* __GNUC__ */
		1403	#endif /* PNG_PEDANTIC_WARNINGS */
		1404
		1405
		1406	# define PNG_DEPRECATED /* Use of this function is deprecated */
		1407	#endif
		1408	#ifndef PNG_USE_RESULT
		1409	# define PNG_USE_RESULT /* The result of this function must be checked */
		1410	#endif
		1411	#ifndef PNG_NORETURN
		1412	# define PNG_NORETURN /* This function does not return */
		1413	#endif
		1414	#ifndef PNG_ALLOCATED
		1415	# define PNG_ALLOCATED /* The result of the function is new memory */
		1416	#endif
		1417	#ifndef PNG_DEPSTRUCT
		1418	# define PNG_DEPSTRUCT /* Access to this struct member is deprecated */
		1419	#endif
		1420	#ifndef PNG_PRIVATE
		1421	# define PNG_PRIVATE /* This is a private libpng function */
		1422	#endif
		1423
		1424
		1425	* functions that are passed far data must be model-independent.
		1426	*/
		1427
		1428
		1429	#ifndef PNG_ABORT
		1430	# if (defined(_Windows) \|\| defined(_WINDOWS) \|\| defined(_WINDOWS_))
		1431	# define PNG_ABORT() ExitProcess(0)
		1432	# else
		1433	# define PNG_ABORT() abort()
		1434	# endif
		1435	#endif
		1436
		1437
		1438	/* Use this to make far-to-near assignments */
		1439	# define CHECK 1
		1440	# define NOCHECK 0
		1441	# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
		1442	# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
		1443	# define png_strcpy _fstrcpy
		1444	# define png_strncpy _fstrncpy /* Added to v 1.2.6 */
		1445	# define png_strlen _fstrlen
		1446	# define png_memcmp _fmemcmp /* SJT: added */
		1447	# define png_memcpy _fmemcpy
		1448	# define png_memset _fmemset
		1449	# define png_sprintf sprintf
		1450	#else
		1451	# if (defined(_Windows) \|\| defined(_WINDOWS) \|\| defined(_WINDOWS_))
		1452	# /* Favor Windows over C runtime fns */
		1453	# define CVT_PTR(ptr) (ptr)
		1454	# define CVT_PTR_NOCHECK(ptr) (ptr)
		1455	# define png_strcpy lstrcpyA
		1456	# define png_strncpy lstrcpynA
		1457	# define png_strlen lstrlenA
		1458	# define png_memcmp memcmp
		1459	# define png_memcpy CopyMemory
		1460	# define png_memset memset
		1461	# define png_sprintf wsprintfA
		1462	# else
		1463	# define CVT_PTR(ptr) (ptr)
		1464	# define CVT_PTR_NOCHECK(ptr) (ptr)
		1465	# define png_strcpy strcpy
		1466	# define png_strncpy strncpy /* Added to v 1.2.6 */
		1467	# define png_strlen strlen
		1468	# define png_memcmp memcmp /* SJT: added */
		1469	# define png_memcpy memcpy
		1470	# define png_memset memset
		1471	# define png_sprintf sprintf
		1472	# endif
		1473	#endif
		1474
		1475
		1476	# ifdef _MSC_VER
		1477	# define png_snprintf _snprintf /* Added to v 1.2.19 */
		1478	# define png_snprintf2 _snprintf
		1479	# define png_snprintf6 _snprintf
		1480	# else
		1481	# define png_snprintf snprintf /* Added to v 1.2.19 */
		1482	# define png_snprintf2 snprintf
		1483	# define png_snprintf6 snprintf
		1484	# endif
		1485	#else
		1486	/* You don't have or don't want to use snprintf(). Caution: Using
		1487	* sprintf instead of snprintf exposes your application to accidental
		1488	* or malevolent buffer overflows. If you don't have snprintf()
		1489	* as a general rule you should provide one (you can get one from
		1490	* Portable OpenSSH).
		1491	*/
		1492	# define png_snprintf(s1,n,fmt,x1) png_sprintf(s1,fmt,x1)
		1493	# define png_snprintf2(s1,n,fmt,x1,x2) png_sprintf(s1,fmt,x1,x2)
		1494	# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
		1495	png_sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
		1496	#endif
		1497
		1498
		1499	* and no smaller than png_uint_32. Casts from png_size_t or png_uint_32
		1500	* to png_alloc_size_t are not necessary; in fact, it is recommended
		1501	* not to use them at all so that the compiler can complain when something
		1502	* turns out to be problematic.
		1503	* Casts in the other direction (from png_alloc_size_t to png_size_t or
		1504	* png_uint_32) should be explicitly applied; however, we do not expect
		1505	* to encounter practical situations that require such conversions.
		1506	*/
		1507	#if defined(__TURBOC__) && !defined(__FLAT__)
		1508	typedef unsigned long png_alloc_size_t;
		1509	#else
		1510	# if defined(_MSC_VER) && defined(MAXSEG_64K)
		1511	typedef unsigned long png_alloc_size_t;
		1512	# else
		1513	/* This is an attempt to detect an old Windows system where (int) is
		1514	* actually 16 bits, in that case png_malloc must have an argument with a
		1515	* bigger size to accomodate the requirements of the library.
		1516	*/
		1517	# if (defined(_Windows) \|\| defined(_WINDOWS) \|\| defined(_WINDOWS_)) && \
		1518	(!defined(INT_MAX) \|\| INT_MAX <= 0x7ffffffeL)
		1519	typedef DWORD png_alloc_size_t;
		1520	# else
		1521	typedef png_size_t png_alloc_size_t;
		1522	# endif
		1523	# endif
		1524	#endif
		1525	/* End of memory model/platform independent support */
		1526
		1527
		1528	* contradictory.
		1529	*/
		1530	#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
		1531	# undef PNG_ZBUF_SIZE
		1532	# define PNG_ZBUF_SIZE 65536L
		1533	#endif
		1534
		1535
		1536
		1537	#endif /* PNG_VERSION_INFO_ONLY */
		1538
		1539
		1540

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(root)/contrib/menuetlibc/openjpeg/libs/png/pngconf.h – Rev 4758