2
/* pngconf.h - machine configurable file for libpng
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* libpng version 1.2.40 - September 10, 2009
5
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (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
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* are configuring libpng for a machine, you may want to read the section
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* 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.
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#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
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* 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.")
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# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
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#ifndef PNG_VERSION_INFO_ONLY
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/* 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 */
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#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
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* where it becomes significant, if you are concerned with memory
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* usage. Note that zlib allocates at least 32Kb also. For readers,
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* this describes the size of the buffer available to read the data in.
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* 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 by default in 1.2.0. You can disable this if you don't need to
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support PNGs that are embedded in MNG datastreams */
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#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
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# ifndef PNG_MNG_FEATURES_SUPPORTED
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# define PNG_MNG_FEATURES_SUPPORTED
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#ifndef PNG_NO_FLOATING_POINT_SUPPORTED
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# ifndef PNG_FLOATING_POINT_SUPPORTED
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# define PNG_FLOATING_POINT_SUPPORTED
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/* If you are running on a machine where you cannot allocate more
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* than 64K of memory at once, uncomment this. While libpng will not
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* normally need that much memory in a chunk (unless you load up a very
135
* large file), zlib needs to know how big of a chunk it can use, and
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* libpng thus makes sure to check any memory allocation to verify it
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* will fit into memory.
138
#define PNG_MAX_MALLOC_64K
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#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
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# define PNG_MAX_MALLOC_64K
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/* Special munging to support doing things the 'cygwin' way:
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* 'Normal' png-on-win32 defines/defaults:
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* PNG_BUILD_DLL -- building dll
147
* PNG_USE_DLL -- building an application, linking to dll
148
* (no define) -- building static library, or building an
149
* application and linking to the static lib
150
* 'Cygwin' defines/defaults:
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* PNG_BUILD_DLL -- (ignored) building the dll
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* (no define) -- (ignored) building an application, linking to the dll
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* PNG_STATIC -- (ignored) building the static lib, or building an
154
* application that links to the static lib.
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* ALL_STATIC -- (ignored) building various static libs, or building an
156
* application that links to the static libs.
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* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
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* this bit of #ifdefs will define the 'correct' config variables based on
160
* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
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* Also, the precedence order is:
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* ALL_STATIC (since we can't #undef something outside our namespace)
167
* (nothing) == PNG_USE_DLL
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* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
170
* of auto-import in binutils, we no longer need to worry about
171
* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
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* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
173
* to __declspec() stuff. However, we DO need to worry about
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* PNG_BUILD_DLL and PNG_STATIC because those change some defaults
175
* such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
177
#if defined(__CYGWIN__)
178
# if defined(ALL_STATIC)
179
# if defined(PNG_BUILD_DLL)
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# undef PNG_BUILD_DLL
182
# if defined(PNG_USE_DLL)
185
# if defined(PNG_DLL)
188
# if !defined(PNG_STATIC)
192
# if defined (PNG_BUILD_DLL)
193
# if defined(PNG_STATIC)
196
# if defined(PNG_USE_DLL)
199
# if !defined(PNG_DLL)
203
# if defined(PNG_STATIC)
204
# if defined(PNG_USE_DLL)
207
# if defined(PNG_DLL)
211
# if !defined(PNG_USE_DLL)
214
# if !defined(PNG_DLL)
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/* This protects us against compilers that run on a windowing system
223
* and thus don't have or would rather us not use the stdio types:
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* stdin, stdout, and stderr. The only one currently used is stderr
225
* in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
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* prevent these from being compiled and used. #defining PNG_NO_STDIO
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* will also prevent these, plus will prevent the entire set of stdio
228
* macros and functions (FILE *, printf, etc.) from being compiled and used,
229
* unless (PNG_DEBUG > 0) has been #defined.
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* #define PNG_NO_CONSOLE_IO
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* #define PNG_NO_STDIO
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#if defined(_WIN32_WCE)
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# include <windows.h>
237
/* Console I/O functions are not supported on WindowsCE */
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# define PNG_NO_CONSOLE_IO
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/* abort() may not be supported on some/all Windows CE platforms */
240
# define PNG_ABORT() exit(-1)
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# ifndef PNG_CONSOLE_IO_SUPPORTED
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# ifndef PNG_NO_CONSOLE_IO
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# define PNG_NO_CONSOLE_IO
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# ifndef PNG_NO_CONSOLE_IO
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# define PNG_NO_CONSOLE_IO
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# if !defined(_WIN32_WCE)
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/* "stdio.h" functions are not supported on WindowsCE */
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/* This macro protects us against machines that don't have function
271
* prototypes (ie K&R style headers). If your compiler does not handle
272
* function prototypes, define this macro and use the included ansi2knr.
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* I've always been able to use _NO_PROTO as the indicator, but you may
274
* need to drag the empty declaration out in front of here, or change the
275
* ifdef to suit your own needs.
279
#ifdef OF /* zlib prototype munger */
280
# define PNGARG(arglist) OF(arglist)
284
# define PNGARG(arglist) ()
285
# ifndef PNG_TYPECAST_NULL
286
# define PNG_TYPECAST_NULL
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# define PNGARG(arglist) arglist
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#endif /* _NO_PROTO */
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/* Try to determine if we are compiling on a Mac. Note that testing for
298
* just __MWERKS__ is not good enough, because the Codewarrior is now used
299
* on non-Mac platforms.
302
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
303
defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
308
/* enough people need this for various reasons to include it here */
309
#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
310
# include <sys/types.h>
313
#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
314
# define PNG_SETJMP_SUPPORTED
317
#ifdef PNG_SETJMP_SUPPORTED
318
/* This is an attempt to force a single setjmp behaviour on Linux. If
319
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
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* You can bypass this test if you know that your application uses exactly
322
* the same setjmp.h that was included when libpng was built. Only define
323
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
324
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
325
* while building a separate libpng library for general use.
328
# ifndef PNG_SKIP_SETJMP_CHECK
331
# define PNG_SAVE_BSD_SOURCE
335
/* If you encounter a compiler error here, see the explanation
336
* near the end of INSTALL.
338
__pngconf.h__ in libpng already includes setjmp.h;
339
__dont__ include it again.;
341
# endif /* __linux__ */
342
# endif /* PNG_SKIP_SETJMP_CHECK */
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/* include setjmp.h for error handling */
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# ifdef PNG_SAVE_BSD_SOURCE
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# undef PNG_SAVE_BSD_SOURCE
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# endif /* __linux__ */
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#endif /* PNG_SETJMP_SUPPORTED */
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# include <strings.h>
363
/* 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
369
* aren't usually used outside the library (as far as I know), so it is
370
* debatable if they should be exported at all. In the future, when it is
371
* possible to have run-time registry of chunk-handling functions, some of
372
* these will be made available again.
373
#define PNG_EXTERN extern
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/* Other defines specific to compilers can go here. Try to keep
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* them inside an appropriate ifdef/endif pair for portability.
381
#if defined(PNG_FLOATING_POINT_SUPPORTED)
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/* We need to check that <math.h> hasn't already been included earlier
384
* as it seems it doesn't agree with <fp.h>, yet we should really use
385
* <fp.h> if possible.
387
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
393
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
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/* Amiga SAS/C: We must include builtin FPU functions when compiling using
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/* Codewarrior on NT has linking problems without this. */
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#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
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# define PNG_ALWAYS_EXTERN
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/* This provides the non-ANSI (far) memory allocation routines. */
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#if defined(__TURBOC__) && defined(__MSDOS__)
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/* I have no idea why is this necessary... */
413
#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
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defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
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/* This controls how fine the dithering gets. As this allocates
419
* a largish chunk of memory (32K), those who are not as concerned
420
* with dithering quality can decrease some or all of these.
422
#ifndef PNG_DITHER_RED_BITS
423
# define PNG_DITHER_RED_BITS 5
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#ifndef PNG_DITHER_GREEN_BITS
426
# define PNG_DITHER_GREEN_BITS 5
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#ifndef PNG_DITHER_BLUE_BITS
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# define PNG_DITHER_BLUE_BITS 5
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/* This controls how fine the gamma correction becomes when you
433
* are only interested in 8 bits anyway. Increasing this value
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* results in more memory being used, and more pow() functions
435
* being called to fill in the gamma tables. Don't set this value
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* less then 8, and even that may not work (I haven't tested it).
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#ifndef PNG_MAX_GAMMA_8
440
# define PNG_MAX_GAMMA_8 11
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/* This controls how much a difference in gamma we can tolerate before
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* we actually start doing gamma conversion.
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#ifndef PNG_GAMMA_THRESHOLD
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# define PNG_GAMMA_THRESHOLD 0.05
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#endif /* PNG_INTERNAL */
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/* The following uses const char * instead of char * for error
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* and warning message functions, so some compilers won't complain.
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* If you do not want to use const, define PNG_NO_CONST here.
458
# define PNG_CONST const
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/* The following defines give you the ability to remove code from the
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* library that you will not be using. I wish I could figure out how to
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* automate this, but I can't do that without making it seriously hard
466
* on the users. So if you are not using an ability, change the #define
467
* to and #undef, and that part of the library will not be compiled. If
468
* your linker can't find a function, you may want to make sure the
469
* ability is defined here. Some of these depend upon some others being
470
* defined. I haven't figured out all the interactions here, so you may
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* have to experiment awhile to get everything to compile. If you are
472
* creating or using a shared library, you probably shouldn't touch this,
473
* as it will affect the size of the structures, and this will cause bad
474
* things to happen if the library and/or application ever change.
477
/* Any features you will not be using can be undef'ed here */
479
/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
480
* to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
481
* on the compile line, then pick and choose which ones to define without
482
* having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
483
* if you only want to have a png-compliant reader/writer but don't need
484
* any of the extra transformations. This saves about 80 kbytes in a
485
* typical installation of the library. (PNG_NO_* form added in version
486
* 1.0.1c, for consistency)
489
/* The size of the png_text structure changed in libpng-1.0.6 when
490
* iTXt support was added. iTXt support was turned off by default through
491
* libpng-1.2.x, to support old apps that malloc the png_text structure
492
* instead of calling png_set_text() and letting libpng malloc it. It
493
* will be turned on by default in libpng-1.4.0.
496
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
497
# ifndef PNG_NO_iTXt_SUPPORTED
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# define PNG_NO_iTXt_SUPPORTED
500
# ifndef PNG_NO_READ_iTXt
501
# define PNG_NO_READ_iTXt
503
# ifndef PNG_NO_WRITE_iTXt
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# define PNG_NO_WRITE_iTXt
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#if !defined(PNG_NO_iTXt_SUPPORTED)
509
# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
510
# define PNG_READ_iTXt
512
# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
513
# define PNG_WRITE_iTXt
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/* The following support, added after version 1.0.0, can be turned off here en
518
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
519
* with old applications that require the length of png_struct and png_info
520
* to remain unchanged.
523
#ifdef PNG_LEGACY_SUPPORTED
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# define PNG_NO_FREE_ME
525
# define PNG_NO_READ_UNKNOWN_CHUNKS
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# define PNG_NO_WRITE_UNKNOWN_CHUNKS
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# define PNG_NO_HANDLE_AS_UNKNOWN
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# define PNG_NO_READ_USER_CHUNKS
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# define PNG_NO_READ_iCCP
530
# define PNG_NO_WRITE_iCCP
531
# define PNG_NO_READ_iTXt
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# define PNG_NO_WRITE_iTXt
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# define PNG_NO_READ_sCAL
534
# define PNG_NO_WRITE_sCAL
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# define PNG_NO_READ_sPLT
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# define PNG_NO_WRITE_sPLT
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# define PNG_NO_INFO_IMAGE
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# define PNG_NO_READ_RGB_TO_GRAY
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# define PNG_NO_READ_USER_TRANSFORM
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# define PNG_NO_WRITE_USER_TRANSFORM
541
# define PNG_NO_USER_MEM
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# define PNG_NO_READ_EMPTY_PLTE
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# define PNG_NO_MNG_FEATURES
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# define PNG_NO_FIXED_POINT_SUPPORTED
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/* Ignore attempt to turn off both floating and fixed point support */
548
#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
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!defined(PNG_NO_FIXED_POINT_SUPPORTED)
550
# define PNG_FIXED_POINT_SUPPORTED
553
#ifndef PNG_NO_FREE_ME
554
# define PNG_FREE_ME_SUPPORTED
557
#ifdef PNG_READ_SUPPORTED
559
#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
560
!defined(PNG_NO_READ_TRANSFORMS)
561
# define PNG_READ_TRANSFORMS_SUPPORTED
564
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
565
# ifndef PNG_NO_READ_EXPAND
566
# define PNG_READ_EXPAND_SUPPORTED
568
# ifndef PNG_NO_READ_SHIFT
569
# define PNG_READ_SHIFT_SUPPORTED
571
# ifndef PNG_NO_READ_PACK
572
# define PNG_READ_PACK_SUPPORTED
574
# ifndef PNG_NO_READ_BGR
575
# define PNG_READ_BGR_SUPPORTED
577
# ifndef PNG_NO_READ_SWAP
578
# define PNG_READ_SWAP_SUPPORTED
580
# ifndef PNG_NO_READ_PACKSWAP
581
# define PNG_READ_PACKSWAP_SUPPORTED
583
# ifndef PNG_NO_READ_INVERT
584
# define PNG_READ_INVERT_SUPPORTED
586
# ifndef PNG_NO_READ_DITHER
587
# define PNG_READ_DITHER_SUPPORTED
589
# ifndef PNG_NO_READ_BACKGROUND
590
# define PNG_READ_BACKGROUND_SUPPORTED
592
# ifndef PNG_NO_READ_16_TO_8
593
# define PNG_READ_16_TO_8_SUPPORTED
595
# ifndef PNG_NO_READ_FILLER
596
# define PNG_READ_FILLER_SUPPORTED
598
# ifndef PNG_NO_READ_GAMMA
599
# define PNG_READ_GAMMA_SUPPORTED
601
# ifndef PNG_NO_READ_GRAY_TO_RGB
602
# define PNG_READ_GRAY_TO_RGB_SUPPORTED
604
# ifndef PNG_NO_READ_SWAP_ALPHA
605
# define PNG_READ_SWAP_ALPHA_SUPPORTED
607
# ifndef PNG_NO_READ_INVERT_ALPHA
608
# define PNG_READ_INVERT_ALPHA_SUPPORTED
610
# ifndef PNG_NO_READ_STRIP_ALPHA
611
# define PNG_READ_STRIP_ALPHA_SUPPORTED
613
# ifndef PNG_NO_READ_USER_TRANSFORM
614
# define PNG_READ_USER_TRANSFORM_SUPPORTED
616
# ifndef PNG_NO_READ_RGB_TO_GRAY
617
# define PNG_READ_RGB_TO_GRAY_SUPPORTED
619
#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
621
#if !defined(PNG_NO_PROGRESSIVE_READ) && \
622
!defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */
623
# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
624
#endif /* about interlacing capability! You'll */
625
/* still have interlacing unless you change the following line: */
627
#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
629
#ifndef PNG_NO_READ_COMPOSITE_NODIV
630
# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
631
# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
635
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
636
/* Deprecated, will be removed from version 2.0.0.
637
Use PNG_MNG_FEATURES_SUPPORTED instead. */
638
#ifndef PNG_NO_READ_EMPTY_PLTE
639
# define PNG_READ_EMPTY_PLTE_SUPPORTED
643
#endif /* PNG_READ_SUPPORTED */
645
#ifdef PNG_WRITE_SUPPORTED
647
# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
648
!defined(PNG_NO_WRITE_TRANSFORMS)
649
# define PNG_WRITE_TRANSFORMS_SUPPORTED
652
#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
653
# ifndef PNG_NO_WRITE_SHIFT
654
# define PNG_WRITE_SHIFT_SUPPORTED
656
# ifndef PNG_NO_WRITE_PACK
657
# define PNG_WRITE_PACK_SUPPORTED
659
# ifndef PNG_NO_WRITE_BGR
660
# define PNG_WRITE_BGR_SUPPORTED
662
# ifndef PNG_NO_WRITE_SWAP
663
# define PNG_WRITE_SWAP_SUPPORTED
665
# ifndef PNG_NO_WRITE_PACKSWAP
666
# define PNG_WRITE_PACKSWAP_SUPPORTED
668
# ifndef PNG_NO_WRITE_INVERT
669
# define PNG_WRITE_INVERT_SUPPORTED
671
# ifndef PNG_NO_WRITE_FILLER
672
# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */
674
# ifndef PNG_NO_WRITE_SWAP_ALPHA
675
# define PNG_WRITE_SWAP_ALPHA_SUPPORTED
677
# ifndef PNG_NO_WRITE_INVERT_ALPHA
678
# define PNG_WRITE_INVERT_ALPHA_SUPPORTED
680
# ifndef PNG_NO_WRITE_USER_TRANSFORM
681
# define PNG_WRITE_USER_TRANSFORM_SUPPORTED
683
#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
685
#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
686
!defined(PNG_WRITE_INTERLACING_SUPPORTED)
687
#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
688
encoders, but can cause trouble
692
#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
693
!defined(PNG_WRITE_WEIGHTED_FILTER) && \
694
defined(PNG_FLOATING_POINT_SUPPORTED)
695
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
698
#ifndef PNG_NO_WRITE_FLUSH
699
# define PNG_WRITE_FLUSH_SUPPORTED
702
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
703
/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
704
#ifndef PNG_NO_WRITE_EMPTY_PLTE
705
# define PNG_WRITE_EMPTY_PLTE_SUPPORTED
709
#endif /* PNG_WRITE_SUPPORTED */
712
# ifndef PNG_NO_ERROR_NUMBERS
713
# define PNG_ERROR_NUMBERS_SUPPORTED
715
#endif /* PNG_1_0_X */
717
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
718
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
719
# ifndef PNG_NO_USER_TRANSFORM_PTR
720
# define PNG_USER_TRANSFORM_PTR_SUPPORTED
725
# define PNG_TIME_RFC1123_SUPPORTED
728
/* This adds extra functions in pngget.c for accessing data from the
729
* info pointer (added in version 0.99)
730
* png_get_image_width()
731
* png_get_image_height()
732
* png_get_bit_depth()
733
* png_get_color_type()
734
* png_get_compression_type()
735
* png_get_filter_type()
736
* png_get_interlace_type()
737
* png_get_pixel_aspect_ratio()
738
* png_get_pixels_per_meter()
739
* png_get_x_offset_pixels()
740
* png_get_y_offset_pixels()
741
* png_get_x_offset_microns()
742
* png_get_y_offset_microns()
744
#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
745
# define PNG_EASY_ACCESS_SUPPORTED
748
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
749
* and removed from version 1.2.20. The following will be removed
753
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
754
# ifndef PNG_OPTIMIZED_CODE_SUPPORTED
755
# define PNG_OPTIMIZED_CODE_SUPPORTED
759
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
760
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED
761
# define PNG_ASSEMBLER_CODE_SUPPORTED
764
# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
765
/* work around 64-bit gcc compiler bugs in gcc-3.x */
766
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
767
# define PNG_NO_MMX_CODE
771
# if defined(__APPLE__)
772
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
773
# define PNG_NO_MMX_CODE
777
# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
778
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
779
# define PNG_NO_MMX_CODE
783
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
784
# define PNG_MMX_CODE_SUPPORTED
788
/* end of obsolete code to be removed from libpng-1.4.0 */
790
#if !defined(PNG_1_0_X)
791
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
792
# define PNG_USER_MEM_SUPPORTED
794
#endif /* PNG_1_0_X */
796
/* Added at libpng-1.2.6 */
797
#if !defined(PNG_1_0_X)
798
#ifndef PNG_SET_USER_LIMITS_SUPPORTED
799
#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
800
# define PNG_SET_USER_LIMITS_SUPPORTED
803
#endif /* PNG_1_0_X */
805
/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter
806
* how large, set these limits to 0x7fffffffL
808
#ifndef PNG_USER_WIDTH_MAX
809
# define PNG_USER_WIDTH_MAX 1000000L
811
#ifndef PNG_USER_HEIGHT_MAX
812
# define PNG_USER_HEIGHT_MAX 1000000L
815
/* Added at libpng-1.2.34 and 1.4.0 */
816
#ifndef PNG_STRING_NEWLINE
817
#define PNG_STRING_NEWLINE "\n"
820
/* These are currently experimental features, define them if you want */
822
/* very little testing */
824
#ifdef PNG_READ_SUPPORTED
825
# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
826
# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
831
/* This is only for PowerPC big-endian and 680x0 systems */
834
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
835
# define PNG_READ_BIG_ENDIAN_SUPPORTED
839
/* Buggy compilers (e.g., gcc 2.7.2.2) need this */
841
#define PNG_NO_POINTER_INDEXING
844
/* These functions are turned off by default, as they will be phased out. */
846
#define PNG_USELESS_TESTS_SUPPORTED
847
#define PNG_CORRECT_PALETTE_SUPPORTED
850
/* Any chunks you are not interested in, you can undef here. The
851
* ones that allocate memory may be expecially important (hIST,
852
* tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
856
#if defined(PNG_READ_SUPPORTED) && \
857
!defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
858
!defined(PNG_NO_READ_ANCILLARY_CHUNKS)
859
# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
862
#if defined(PNG_WRITE_SUPPORTED) && \
863
!defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
864
!defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
865
# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
868
#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
870
#ifdef PNG_NO_READ_TEXT
871
# define PNG_NO_READ_iTXt
872
# define PNG_NO_READ_tEXt
873
# define PNG_NO_READ_zTXt
875
#ifndef PNG_NO_READ_bKGD
876
# define PNG_READ_bKGD_SUPPORTED
877
# define PNG_bKGD_SUPPORTED
879
#ifndef PNG_NO_READ_cHRM
880
# define PNG_READ_cHRM_SUPPORTED
881
# define PNG_cHRM_SUPPORTED
883
#ifndef PNG_NO_READ_gAMA
884
# define PNG_READ_gAMA_SUPPORTED
885
# define PNG_gAMA_SUPPORTED
887
#ifndef PNG_NO_READ_hIST
888
# define PNG_READ_hIST_SUPPORTED
889
# define PNG_hIST_SUPPORTED
891
#ifndef PNG_NO_READ_iCCP
892
# define PNG_READ_iCCP_SUPPORTED
893
# define PNG_iCCP_SUPPORTED
895
#ifndef PNG_NO_READ_iTXt
896
# ifndef PNG_READ_iTXt_SUPPORTED
897
# define PNG_READ_iTXt_SUPPORTED
899
# ifndef PNG_iTXt_SUPPORTED
900
# define PNG_iTXt_SUPPORTED
903
#ifndef PNG_NO_READ_oFFs
904
# define PNG_READ_oFFs_SUPPORTED
905
# define PNG_oFFs_SUPPORTED
907
#ifndef PNG_NO_READ_pCAL
908
# define PNG_READ_pCAL_SUPPORTED
909
# define PNG_pCAL_SUPPORTED
911
#ifndef PNG_NO_READ_sCAL
912
# define PNG_READ_sCAL_SUPPORTED
913
# define PNG_sCAL_SUPPORTED
915
#ifndef PNG_NO_READ_pHYs
916
# define PNG_READ_pHYs_SUPPORTED
917
# define PNG_pHYs_SUPPORTED
919
#ifndef PNG_NO_READ_sBIT
920
# define PNG_READ_sBIT_SUPPORTED
921
# define PNG_sBIT_SUPPORTED
923
#ifndef PNG_NO_READ_sPLT
924
# define PNG_READ_sPLT_SUPPORTED
925
# define PNG_sPLT_SUPPORTED
927
#ifndef PNG_NO_READ_sRGB
928
# define PNG_READ_sRGB_SUPPORTED
929
# define PNG_sRGB_SUPPORTED
931
#ifndef PNG_NO_READ_tEXt
932
# define PNG_READ_tEXt_SUPPORTED
933
# define PNG_tEXt_SUPPORTED
935
#ifndef PNG_NO_READ_tIME
936
# define PNG_READ_tIME_SUPPORTED
937
# define PNG_tIME_SUPPORTED
939
#ifndef PNG_NO_READ_tRNS
940
# define PNG_READ_tRNS_SUPPORTED
941
# define PNG_tRNS_SUPPORTED
943
#ifndef PNG_NO_READ_zTXt
944
# define PNG_READ_zTXt_SUPPORTED
945
# define PNG_zTXt_SUPPORTED
947
#ifndef PNG_NO_READ_OPT_PLTE
948
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
949
#endif /* optional PLTE chunk in RGB and RGBA images */
950
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
951
defined(PNG_READ_zTXt_SUPPORTED)
952
# define PNG_READ_TEXT_SUPPORTED
953
# define PNG_TEXT_SUPPORTED
956
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
958
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS
959
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
960
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
961
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
964
#if !defined(PNG_NO_READ_USER_CHUNKS) && \
965
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
966
# define PNG_READ_USER_CHUNKS_SUPPORTED
967
# define PNG_USER_CHUNKS_SUPPORTED
968
# ifdef PNG_NO_READ_UNKNOWN_CHUNKS
969
# undef PNG_NO_READ_UNKNOWN_CHUNKS
971
# ifdef PNG_NO_HANDLE_AS_UNKNOWN
972
# undef PNG_NO_HANDLE_AS_UNKNOWN
976
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
977
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
978
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
982
#ifdef PNG_WRITE_SUPPORTED
983
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
985
#ifdef PNG_NO_WRITE_TEXT
986
# define PNG_NO_WRITE_iTXt
987
# define PNG_NO_WRITE_tEXt
988
# define PNG_NO_WRITE_zTXt
990
#ifndef PNG_NO_WRITE_bKGD
991
# define PNG_WRITE_bKGD_SUPPORTED
992
# ifndef PNG_bKGD_SUPPORTED
993
# define PNG_bKGD_SUPPORTED
996
#ifndef PNG_NO_WRITE_cHRM
997
# define PNG_WRITE_cHRM_SUPPORTED
998
# ifndef PNG_cHRM_SUPPORTED
999
# define PNG_cHRM_SUPPORTED
1002
#ifndef PNG_NO_WRITE_gAMA
1003
# define PNG_WRITE_gAMA_SUPPORTED
1004
# ifndef PNG_gAMA_SUPPORTED
1005
# define PNG_gAMA_SUPPORTED
1008
#ifndef PNG_NO_WRITE_hIST
1009
# define PNG_WRITE_hIST_SUPPORTED
1010
# ifndef PNG_hIST_SUPPORTED
1011
# define PNG_hIST_SUPPORTED
1014
#ifndef PNG_NO_WRITE_iCCP
1015
# define PNG_WRITE_iCCP_SUPPORTED
1016
# ifndef PNG_iCCP_SUPPORTED
1017
# define PNG_iCCP_SUPPORTED
1020
#ifndef PNG_NO_WRITE_iTXt
1021
# ifndef PNG_WRITE_iTXt_SUPPORTED
1022
# define PNG_WRITE_iTXt_SUPPORTED
1024
# ifndef PNG_iTXt_SUPPORTED
1025
# define PNG_iTXt_SUPPORTED
1028
#ifndef PNG_NO_WRITE_oFFs
1029
# define PNG_WRITE_oFFs_SUPPORTED
1030
# ifndef PNG_oFFs_SUPPORTED
1031
# define PNG_oFFs_SUPPORTED
1034
#ifndef PNG_NO_WRITE_pCAL
1035
# define PNG_WRITE_pCAL_SUPPORTED
1036
# ifndef PNG_pCAL_SUPPORTED
1037
# define PNG_pCAL_SUPPORTED
1040
#ifndef PNG_NO_WRITE_sCAL
1041
# define PNG_WRITE_sCAL_SUPPORTED
1042
# ifndef PNG_sCAL_SUPPORTED
1043
# define PNG_sCAL_SUPPORTED
1046
#ifndef PNG_NO_WRITE_pHYs
1047
# define PNG_WRITE_pHYs_SUPPORTED
1048
# ifndef PNG_pHYs_SUPPORTED
1049
# define PNG_pHYs_SUPPORTED
1052
#ifndef PNG_NO_WRITE_sBIT
1053
# define PNG_WRITE_sBIT_SUPPORTED
1054
# ifndef PNG_sBIT_SUPPORTED
1055
# define PNG_sBIT_SUPPORTED
1058
#ifndef PNG_NO_WRITE_sPLT
1059
# define PNG_WRITE_sPLT_SUPPORTED
1060
# ifndef PNG_sPLT_SUPPORTED
1061
# define PNG_sPLT_SUPPORTED
1064
#ifndef PNG_NO_WRITE_sRGB
1065
# define PNG_WRITE_sRGB_SUPPORTED
1066
# ifndef PNG_sRGB_SUPPORTED
1067
# define PNG_sRGB_SUPPORTED
1070
#ifndef PNG_NO_WRITE_tEXt
1071
# define PNG_WRITE_tEXt_SUPPORTED
1072
# ifndef PNG_tEXt_SUPPORTED
1073
# define PNG_tEXt_SUPPORTED
1076
#ifndef PNG_NO_WRITE_tIME
1077
# define PNG_WRITE_tIME_SUPPORTED
1078
# ifndef PNG_tIME_SUPPORTED
1079
# define PNG_tIME_SUPPORTED
1082
#ifndef PNG_NO_WRITE_tRNS
1083
# define PNG_WRITE_tRNS_SUPPORTED
1084
# ifndef PNG_tRNS_SUPPORTED
1085
# define PNG_tRNS_SUPPORTED
1088
#ifndef PNG_NO_WRITE_zTXt
1089
# define PNG_WRITE_zTXt_SUPPORTED
1090
# ifndef PNG_zTXt_SUPPORTED
1091
# define PNG_zTXt_SUPPORTED
1094
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
1095
defined(PNG_WRITE_zTXt_SUPPORTED)
1096
# define PNG_WRITE_TEXT_SUPPORTED
1097
# ifndef PNG_TEXT_SUPPORTED
1098
# define PNG_TEXT_SUPPORTED
1102
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
1104
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
1105
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
1106
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
1107
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
1111
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
1112
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1113
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1116
#endif /* PNG_WRITE_SUPPORTED */
1118
/* Turn this off to disable png_read_png() and
1119
* png_write_png() and leave the row_pointers member
1120
* out of the info structure.
1122
#ifndef PNG_NO_INFO_IMAGE
1123
# define PNG_INFO_IMAGE_SUPPORTED
1126
/* need the time information for reading tIME chunks */
1127
#if defined(PNG_tIME_SUPPORTED)
1128
# if !defined(_WIN32_WCE)
1129
/* "time.h" functions are not supported on WindowsCE */
1134
/* Some typedefs to get us started. These should be safe on most of the
1135
* common platforms. The typedefs should be at least as large as the
1136
* numbers suggest (a png_uint_32 must be at least 32 bits long), but they
1137
* don't have to be exactly that size. Some compilers dislike passing
1138
* unsigned shorts as function parameters, so you may be better off using
1139
* unsigned int for png_uint_16. Likewise, for 64-bit systems, you may
1140
* want to have unsigned int for png_uint_32 instead of unsigned long.
1143
typedef unsigned long png_uint_32;
1144
typedef long png_int_32;
1145
typedef unsigned short png_uint_16;
1146
typedef short png_int_16;
1147
typedef unsigned char png_byte;
1149
/* This is usually size_t. It is typedef'ed just in case you need it to
1150
change (I'm not sure if you will or not, so I thought I'd be safe) */
1152
typedef PNG_SIZE_T png_size_t;
1153
# define png_sizeof(x) png_convert_size(sizeof(x))
1155
typedef size_t png_size_t;
1156
# define png_sizeof(x) sizeof(x)
1159
/* The following is needed for medium model support. It cannot be in the
1160
* PNG_INTERNAL section. Needs modification for other compilers besides
1161
* MSC. Model independent support declares all arrays and pointers to be
1162
* large using the far keyword. The zlib version used must also support
1163
* model independent data. As of version zlib 1.0.4, the necessary changes
1164
* have been made in zlib. The USE_FAR_KEYWORD define triggers other
1165
* changes that are needed. (Tim Wegner)
1168
/* Separate compiler dependencies (problem here is that zlib.h always
1169
defines FAR. (SJT) */
1171
# if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
1176
/* GRR: why is Cygwin in here? Cygwin is not Borland C... */
1177
# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
1178
# define PNG_MAX_MALLOC_64K
1183
# define USE_FAR_KEYWORD
1184
# endif /* LDATA != 1 */
1185
/* Possibly useful for moving data out of default segment.
1186
* Uncomment it if you want. Could also define FARDATA as
1187
* const if your compiler supports it. (SJT)
1188
# define FARDATA FAR
1190
# endif /* __WIN32__, __FLAT__, __CYGWIN__ */
1191
#endif /* __BORLANDC__ */
1194
/* Suggest testing for specific compiler first before testing for
1195
* FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM,
1196
* making reliance oncertain keywords suspect. (SJT)
1199
/* MSC Medium model */
1201
# if defined(M_I86MM)
1202
# define USE_FAR_KEYWORD
1203
# define FARDATA FAR
1208
/* SJT: default case */
1213
/* At this point FAR is always defined */
1218
/* Typedef for floating-point numbers that are converted
1219
to fixed-point with a multiple of 100,000, e.g., int_gamma */
1220
typedef png_int_32 png_fixed_point;
1222
/* Add typedefs for pointers */
1223
typedef void FAR * png_voidp;
1224
typedef png_byte FAR * png_bytep;
1225
typedef png_uint_32 FAR * png_uint_32p;
1226
typedef png_int_32 FAR * png_int_32p;
1227
typedef png_uint_16 FAR * png_uint_16p;
1228
typedef png_int_16 FAR * png_int_16p;
1229
typedef PNG_CONST char FAR * png_const_charp;
1230
typedef char FAR * png_charp;
1231
typedef png_fixed_point FAR * png_fixed_point_p;
1233
#ifndef PNG_NO_STDIO
1234
#if defined(_WIN32_WCE)
1235
typedef HANDLE png_FILE_p;
1237
typedef FILE * png_FILE_p;
1241
#ifdef PNG_FLOATING_POINT_SUPPORTED
1242
typedef double FAR * png_doublep;
1245
/* Pointers to pointers; i.e. arrays */
1246
typedef png_byte FAR * FAR * png_bytepp;
1247
typedef png_uint_32 FAR * FAR * png_uint_32pp;
1248
typedef png_int_32 FAR * FAR * png_int_32pp;
1249
typedef png_uint_16 FAR * FAR * png_uint_16pp;
1250
typedef png_int_16 FAR * FAR * png_int_16pp;
1251
typedef PNG_CONST char FAR * FAR * png_const_charpp;
1252
typedef char FAR * FAR * png_charpp;
1253
typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
1254
#ifdef PNG_FLOATING_POINT_SUPPORTED
1255
typedef double FAR * FAR * png_doublepp;
1258
/* Pointers to pointers to pointers; i.e., pointer to array */
1259
typedef char FAR * FAR * FAR * png_charppp;
1261
#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
1262
/* SPC - Is this stuff deprecated? */
1263
/* It'll be removed as of libpng-1.4.0 - GR-P */
1264
/* libpng typedefs for types in zlib. If zlib changes
1265
* or another compression library is used, then change these.
1266
* Eliminates need to change all the source files.
1268
typedef charf * png_zcharp;
1269
typedef charf * FAR * png_zcharpp;
1270
typedef z_stream FAR * png_zstreamp;
1271
#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
1274
* Define PNG_BUILD_DLL if the module being built is a Windows
1277
* Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
1278
* It is equivalent to Microsoft predefined macro _DLL that is
1279
* automatically defined when you compile using the share
1280
* version of the CRT (C Run-Time library)
1282
* The cygwin mods make this behavior a little different:
1283
* Define PNG_BUILD_DLL if you are building a dll for use with cygwin
1284
* Define PNG_STATIC if you are building a static library for use with cygwin,
1285
* -or- if you are building an application that you want to link to the
1287
* PNG_USE_DLL is defined by default (no user action needed) unless one of
1288
* the other flags is defined.
1291
#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
1294
/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
1295
* When building a static lib, default to no GLOBAL ARRAYS, but allow
1296
* command-line override
1298
#if defined(__CYGWIN__)
1299
# if !defined(PNG_STATIC)
1300
# if defined(PNG_USE_GLOBAL_ARRAYS)
1301
# undef PNG_USE_GLOBAL_ARRAYS
1303
# if !defined(PNG_USE_LOCAL_ARRAYS)
1304
# define PNG_USE_LOCAL_ARRAYS
1307
# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
1308
# if defined(PNG_USE_GLOBAL_ARRAYS)
1309
# undef PNG_USE_GLOBAL_ARRAYS
1313
# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
1314
# define PNG_USE_LOCAL_ARRAYS
1318
/* Do not use global arrays (helps with building DLL's)
1319
* They are no longer used in libpng itself, since version 1.0.5c,
1320
* but might be required for some pre-1.0.5c applications.
1322
#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
1323
# if defined(PNG_NO_GLOBAL_ARRAYS) || \
1324
(defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
1325
# define PNG_USE_LOCAL_ARRAYS
1327
# define PNG_USE_GLOBAL_ARRAYS
1331
#if defined(__CYGWIN__)
1333
# define PNGAPI __cdecl
1338
/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
1339
* you may get warnings regarding the linkage of png_zalloc and png_zfree.
1340
* Don't ignore those warnings; you must also reset the default calling
1341
* convention in your compiler to match your PNGAPI, and you must build
1342
* zlib and your applications the same way you build libpng.
1345
#if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
1346
# ifndef PNG_NO_MODULEDEF
1347
# define PNG_NO_MODULEDEF
1351
#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
1355
#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
1356
(( defined(_Windows) || defined(_WINDOWS) || \
1357
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
1360
# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
1361
# define PNGAPI __cdecl
1363
# define PNGAPI _cdecl
1367
# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
1368
0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
1372
# if !defined(PNG_IMPEXP)
1374
# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol
1375
# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol
1377
/* Borland/Microsoft */
1378
# if defined(_MSC_VER) || defined(__BORLANDC__)
1379
# if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
1380
# define PNG_EXPORT PNG_EXPORT_TYPE1
1382
# define PNG_EXPORT PNG_EXPORT_TYPE2
1383
# if defined(PNG_BUILD_DLL)
1384
# define PNG_IMPEXP __export
1386
# define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
1388
# endif /* Exists in Borland C++ for
1389
C++ classes (== huge) */
1393
# if !defined(PNG_IMPEXP)
1394
# if defined(PNG_BUILD_DLL)
1395
# define PNG_IMPEXP __declspec(dllexport)
1397
# define PNG_IMPEXP __declspec(dllimport)
1400
# endif /* PNG_IMPEXP */
1401
#else /* !(DLL || non-cygwin WINDOWS) */
1402
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
1404
# define PNGAPI _System
1407
# if 0 /* ... other platforms, with other meanings */
1419
#ifdef PNG_BUILDSYMS
1421
# define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
1423
# ifdef PNG_USE_GLOBAL_ARRAYS
1424
# ifndef PNG_EXPORT_VAR
1425
# define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
1431
# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
1434
#ifdef PNG_USE_GLOBAL_ARRAYS
1435
# ifndef PNG_EXPORT_VAR
1436
# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
1440
/* User may want to use these so they are not in PNG_INTERNAL. Any library
1441
* functions that are passed far data must be model independent.
1445
# define PNG_ABORT() abort()
1448
#ifdef PNG_SETJMP_SUPPORTED
1449
# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
1451
# define png_jmpbuf(png_ptr) \
1452
(LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
1455
#if defined(USE_FAR_KEYWORD) /* memory model independent fns */
1456
/* use this to make far-to-near assignments */
1459
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
1460
# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
1461
# define png_snprintf _fsnprintf /* Added to v 1.2.19 */
1462
# define png_strlen _fstrlen
1463
# define png_memcmp _fmemcmp /* SJT: added */
1464
# define png_memcpy _fmemcpy
1465
# define png_memset _fmemset
1466
#else /* use the usual functions */
1467
# define CVT_PTR(ptr) (ptr)
1468
# define CVT_PTR_NOCHECK(ptr) (ptr)
1469
# ifndef PNG_NO_SNPRINTF
1471
# define png_snprintf _snprintf /* Added to v 1.2.19 */
1472
# define png_snprintf2 _snprintf
1473
# define png_snprintf6 _snprintf
1475
# define png_snprintf snprintf /* Added to v 1.2.19 */
1476
# define png_snprintf2 snprintf
1477
# define png_snprintf6 snprintf
1480
/* You don't have or don't want to use snprintf(). Caution: Using
1481
* sprintf instead of snprintf exposes your application to accidental
1482
* or malevolent buffer overflows. If you don't have snprintf()
1483
* as a general rule you should provide one (you can get one from
1484
* Portable OpenSSH). */
1485
# define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
1486
# define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
1487
# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
1488
sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
1490
# define png_strlen strlen
1491
# define png_memcmp memcmp /* SJT: added */
1492
# define png_memcpy memcpy
1493
# define png_memset memset
1495
/* End of memory model independent support */
1497
/* Just a little check that someone hasn't tried to define something
1500
#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
1501
# undef PNG_ZBUF_SIZE
1502
# define PNG_ZBUF_SIZE 65536L
1505
/* Added at libpng-1.2.8 */
1506
#endif /* PNG_VERSION_INFO_ONLY */
1508
#endif /* PNGCONF_H */
added
removed
source/libs/libpng/libpng-1.2.40/pngconf.h
