nuclear@26: 
nuclear@26: /* pngconf.h - machine configurable file for libpng
nuclear@26:  *
nuclear@26:  * libpng version 1.2.33 - October 31, 2008
nuclear@26:  * For conditions of distribution and use, see copyright notice in png.h
nuclear@26:  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
nuclear@26:  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
nuclear@26:  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
nuclear@26:  */
nuclear@26: 
nuclear@26: /* Any machine specific code is near the front of this file, so if you
nuclear@26:  * are configuring libpng for a machine, you may want to read the section
nuclear@26:  * starting here down to where it starts to typedef png_color, png_text,
nuclear@26:  * and png_info.
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifndef PNGCONF_H
nuclear@26: #define PNGCONF_H
nuclear@26: 
nuclear@26: #define PNG_1_2_X
nuclear@26: 
nuclear@26: /* 
nuclear@26:  * PNG_USER_CONFIG has to be defined on the compiler command line. This
nuclear@26:  * includes the resource compiler for Windows DLL configurations.
nuclear@26:  */
nuclear@26: #ifdef PNG_USER_CONFIG
nuclear@26: #  ifndef PNG_USER_PRIVATEBUILD
nuclear@26: #    define PNG_USER_PRIVATEBUILD
nuclear@26: #  endif
nuclear@26: #include "pngusr.h"
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
nuclear@26: #ifdef PNG_CONFIGURE_LIBPNG
nuclear@26: #ifdef HAVE_CONFIG_H
nuclear@26: #include "config.h"
nuclear@26: #endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /*
nuclear@26:  * Added at libpng-1.2.8
nuclear@26:  *  
nuclear@26:  * If you create a private DLL you need to define in "pngusr.h" the followings:
nuclear@26:  * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
nuclear@26:  *        the DLL was built>
nuclear@26:  *  e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
nuclear@26:  * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
nuclear@26:  *        distinguish your DLL from those of the official release. These
nuclear@26:  *        correspond to the trailing letters that come after the version
nuclear@26:  *        number and must match your private DLL name>
nuclear@26:  *  e.g. // private DLL "libpng13gx.dll"
nuclear@26:  *       #define PNG_USER_DLLFNAME_POSTFIX "gx"
nuclear@26:  * 
nuclear@26:  * The following macros are also at your disposal if you want to complete the 
nuclear@26:  * DLL VERSIONINFO structure.
nuclear@26:  * - PNG_USER_VERSIONINFO_COMMENTS
nuclear@26:  * - PNG_USER_VERSIONINFO_COMPANYNAME
nuclear@26:  * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifdef __STDC__
nuclear@26: #ifdef SPECIALBUILD
nuclear@26: #  pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
nuclear@26:  are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PRIVATEBUILD
nuclear@26: # pragma message("PRIVATEBUILD is deprecated.\
nuclear@26:  Use PNG_USER_PRIVATEBUILD instead.")
nuclear@26: # define PNG_USER_PRIVATEBUILD PRIVATEBUILD
nuclear@26: #endif
nuclear@26: #endif /* __STDC__ */
nuclear@26: 
nuclear@26: #ifndef PNG_VERSION_INFO_ONLY
nuclear@26: 
nuclear@26: /* End of material added to libpng-1.2.8 */
nuclear@26: 
nuclear@26: /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
nuclear@26:    Restored at libpng-1.2.21 */
nuclear@26: #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
nuclear@26:     !defined(PNG_WARN_UNINITIALIZED_ROW)
nuclear@26: #  define PNG_WARN_UNINITIALIZED_ROW 1
nuclear@26: #endif
nuclear@26: /* End of material added at libpng-1.2.19/1.2.21 */
nuclear@26: 
nuclear@26: /* This is the size of the compression buffer, and thus the size of
nuclear@26:  * an IDAT chunk.  Make this whatever size you feel is best for your
nuclear@26:  * machine.  One of these will be allocated per png_struct.  When this
nuclear@26:  * is full, it writes the data to the disk, and does some other
nuclear@26:  * calculations.  Making this an extremely small size will slow
nuclear@26:  * the library down, but you may want to experiment to determine
nuclear@26:  * where it becomes significant, if you are concerned with memory
nuclear@26:  * usage.  Note that zlib allocates at least 32Kb also.  For readers,
nuclear@26:  * this describes the size of the buffer available to read the data in.
nuclear@26:  * Unless this gets smaller than the size of a row (compressed),
nuclear@26:  * it should not make much difference how big this is.
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifndef PNG_ZBUF_SIZE
nuclear@26: #  define PNG_ZBUF_SIZE 8192
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Enable if you want a write-only libpng */
nuclear@26: 
nuclear@26: #ifndef PNG_NO_READ_SUPPORTED
nuclear@26: #  define PNG_READ_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Enable if you want a read-only libpng */
nuclear@26: 
nuclear@26: #ifndef PNG_NO_WRITE_SUPPORTED
nuclear@26: #  define PNG_WRITE_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Enabled by default in 1.2.0.  You can disable this if you don't need to
nuclear@26:    support PNGs that are embedded in MNG datastreams */
nuclear@26: #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
nuclear@26: #  ifndef PNG_MNG_FEATURES_SUPPORTED
nuclear@26: #    define PNG_MNG_FEATURES_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef PNG_NO_FLOATING_POINT_SUPPORTED
nuclear@26: #  ifndef PNG_FLOATING_POINT_SUPPORTED
nuclear@26: #    define PNG_FLOATING_POINT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* If you are running on a machine where you cannot allocate more
nuclear@26:  * than 64K of memory at once, uncomment this.  While libpng will not
nuclear@26:  * normally need that much memory in a chunk (unless you load up a very
nuclear@26:  * large file), zlib needs to know how big of a chunk it can use, and
nuclear@26:  * libpng thus makes sure to check any memory allocation to verify it
nuclear@26:  * will fit into memory.
nuclear@26: #define PNG_MAX_MALLOC_64K
nuclear@26:  */
nuclear@26: #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
nuclear@26: #  define PNG_MAX_MALLOC_64K
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Special munging to support doing things the 'cygwin' way:
nuclear@26:  * 'Normal' png-on-win32 defines/defaults:
nuclear@26:  *   PNG_BUILD_DLL -- building dll
nuclear@26:  *   PNG_USE_DLL   -- building an application, linking to dll
nuclear@26:  *   (no define)   -- building static library, or building an
nuclear@26:  *                    application and linking to the static lib
nuclear@26:  * 'Cygwin' defines/defaults:
nuclear@26:  *   PNG_BUILD_DLL -- (ignored) building the dll
nuclear@26:  *   (no define)   -- (ignored) building an application, linking to the dll
nuclear@26:  *   PNG_STATIC    -- (ignored) building the static lib, or building an 
nuclear@26:  *                    application that links to the static lib.
nuclear@26:  *   ALL_STATIC    -- (ignored) building various static libs, or building an 
nuclear@26:  *                    application that links to the static libs.
nuclear@26:  * Thus,
nuclear@26:  * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
nuclear@26:  * this bit of #ifdefs will define the 'correct' config variables based on
nuclear@26:  * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
nuclear@26:  * unnecessary.
nuclear@26:  *
nuclear@26:  * Also, the precedence order is:
nuclear@26:  *   ALL_STATIC (since we can't #undef something outside our namespace)
nuclear@26:  *   PNG_BUILD_DLL
nuclear@26:  *   PNG_STATIC
nuclear@26:  *   (nothing) == PNG_USE_DLL
nuclear@26:  * 
nuclear@26:  * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
nuclear@26:  *   of auto-import in binutils, we no longer need to worry about 
nuclear@26:  *   __declspec(dllexport) / __declspec(dllimport) and friends.  Therefore,
nuclear@26:  *   we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
nuclear@26:  *   to __declspec() stuff.  However, we DO need to worry about 
nuclear@26:  *   PNG_BUILD_DLL and PNG_STATIC because those change some defaults
nuclear@26:  *   such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
nuclear@26:  */
nuclear@26: #if defined(__CYGWIN__)
nuclear@26: #  if defined(ALL_STATIC)
nuclear@26: #    if defined(PNG_BUILD_DLL)
nuclear@26: #      undef PNG_BUILD_DLL
nuclear@26: #    endif
nuclear@26: #    if defined(PNG_USE_DLL)
nuclear@26: #      undef PNG_USE_DLL
nuclear@26: #    endif
nuclear@26: #    if defined(PNG_DLL)
nuclear@26: #      undef PNG_DLL
nuclear@26: #    endif
nuclear@26: #    if !defined(PNG_STATIC)
nuclear@26: #      define PNG_STATIC
nuclear@26: #    endif
nuclear@26: #  else
nuclear@26: #    if defined (PNG_BUILD_DLL)
nuclear@26: #      if defined(PNG_STATIC)
nuclear@26: #        undef PNG_STATIC
nuclear@26: #      endif
nuclear@26: #      if defined(PNG_USE_DLL)
nuclear@26: #        undef PNG_USE_DLL
nuclear@26: #      endif
nuclear@26: #      if !defined(PNG_DLL)
nuclear@26: #        define PNG_DLL
nuclear@26: #      endif
nuclear@26: #    else
nuclear@26: #      if defined(PNG_STATIC)
nuclear@26: #        if defined(PNG_USE_DLL)
nuclear@26: #          undef PNG_USE_DLL
nuclear@26: #        endif
nuclear@26: #        if defined(PNG_DLL)
nuclear@26: #          undef PNG_DLL
nuclear@26: #        endif
nuclear@26: #      else
nuclear@26: #        if !defined(PNG_USE_DLL)
nuclear@26: #          define PNG_USE_DLL
nuclear@26: #        endif
nuclear@26: #        if !defined(PNG_DLL)
nuclear@26: #          define PNG_DLL
nuclear@26: #        endif
nuclear@26: #      endif  
nuclear@26: #    endif  
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* This protects us against compilers that run on a windowing system
nuclear@26:  * and thus don't have or would rather us not use the stdio types:
nuclear@26:  * stdin, stdout, and stderr.  The only one currently used is stderr
nuclear@26:  * in png_error() and png_warning().  #defining PNG_NO_CONSOLE_IO will
nuclear@26:  * prevent these from being compiled and used. #defining PNG_NO_STDIO
nuclear@26:  * will also prevent these, plus will prevent the entire set of stdio
nuclear@26:  * macros and functions (FILE *, printf, etc.) from being compiled and used,
nuclear@26:  * unless (PNG_DEBUG > 0) has been #defined.
nuclear@26:  *
nuclear@26:  * #define PNG_NO_CONSOLE_IO
nuclear@26:  * #define PNG_NO_STDIO
nuclear@26:  */
nuclear@26: 
nuclear@26: #if defined(_WIN32_WCE)
nuclear@26: #  include <windows.h>
nuclear@26:    /* Console I/O functions are not supported on WindowsCE */
nuclear@26: #  define PNG_NO_CONSOLE_IO
nuclear@26: #  ifdef PNG_DEBUG
nuclear@26: #    undef PNG_DEBUG
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_BUILD_DLL
nuclear@26: #  ifndef PNG_CONSOLE_IO_SUPPORTED
nuclear@26: #    ifndef PNG_NO_CONSOLE_IO
nuclear@26: #      define PNG_NO_CONSOLE_IO
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #  ifdef PNG_NO_STDIO
nuclear@26: #    ifndef PNG_NO_CONSOLE_IO
nuclear@26: #      define PNG_NO_CONSOLE_IO
nuclear@26: #    endif
nuclear@26: #    ifdef PNG_DEBUG
nuclear@26: #      if (PNG_DEBUG > 0)
nuclear@26: #        include <stdio.h>
nuclear@26: #      endif
nuclear@26: #    endif
nuclear@26: #  else
nuclear@26: #    if !defined(_WIN32_WCE)
nuclear@26: /* "stdio.h" functions are not supported on WindowsCE */
nuclear@26: #      include <stdio.h>
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: 
nuclear@26: /* This macro protects us against machines that don't have function
nuclear@26:  * prototypes (ie K&R style headers).  If your compiler does not handle
nuclear@26:  * function prototypes, define this macro and use the included ansi2knr.
nuclear@26:  * I've always been able to use _NO_PROTO as the indicator, but you may
nuclear@26:  * need to drag the empty declaration out in front of here, or change the
nuclear@26:  * ifdef to suit your own needs.
nuclear@26:  */
nuclear@26: #ifndef PNGARG
nuclear@26: 
nuclear@26: #ifdef OF /* zlib prototype munger */
nuclear@26: #  define PNGARG(arglist) OF(arglist)
nuclear@26: #else
nuclear@26: 
nuclear@26: #ifdef _NO_PROTO
nuclear@26: #  define PNGARG(arglist) ()
nuclear@26: #  ifndef PNG_TYPECAST_NULL
nuclear@26: #     define PNG_TYPECAST_NULL
nuclear@26: #  endif
nuclear@26: #else
nuclear@26: #  define PNGARG(arglist) arglist
nuclear@26: #endif /* _NO_PROTO */
nuclear@26: 
nuclear@26: 
nuclear@26: #endif /* OF */
nuclear@26: 
nuclear@26: #endif /* PNGARG */
nuclear@26: 
nuclear@26: /* Try to determine if we are compiling on a Mac.  Note that testing for
nuclear@26:  * just __MWERKS__ is not good enough, because the Codewarrior is now used
nuclear@26:  * on non-Mac platforms.
nuclear@26:  */
nuclear@26: #ifndef MACOS
nuclear@26: #  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
nuclear@26:       defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
nuclear@26: #    define MACOS
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* enough people need this for various reasons to include it here */
nuclear@26: #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
nuclear@26: #  include <sys/types.h>
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
nuclear@26: #  define PNG_SETJMP_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_SETJMP_SUPPORTED
nuclear@26: /* This is an attempt to force a single setjmp behaviour on Linux.  If
nuclear@26:  * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
nuclear@26:  */
nuclear@26: 
nuclear@26: #  ifdef __linux__
nuclear@26: #    ifdef _BSD_SOURCE
nuclear@26: #      define PNG_SAVE_BSD_SOURCE
nuclear@26: #      undef _BSD_SOURCE
nuclear@26: #    endif
nuclear@26: #    ifdef _SETJMP_H
nuclear@26:      /* If you encounter a compiler error here, see the explanation
nuclear@26:       * near the end of INSTALL.
nuclear@26:       */
nuclear@26:          __pngconf.h__ already includes setjmp.h;
nuclear@26:          __dont__ include it again.;
nuclear@26: #    endif
nuclear@26: #  endif /* __linux__ */
nuclear@26: 
nuclear@26:    /* include setjmp.h for error handling */
nuclear@26: #  include <setjmp.h>
nuclear@26: 
nuclear@26: #  ifdef __linux__
nuclear@26: #    ifdef PNG_SAVE_BSD_SOURCE
nuclear@26: #      ifndef _BSD_SOURCE
nuclear@26: #        define _BSD_SOURCE
nuclear@26: #      endif
nuclear@26: #      undef PNG_SAVE_BSD_SOURCE
nuclear@26: #    endif
nuclear@26: #  endif /* __linux__ */
nuclear@26: #endif /* PNG_SETJMP_SUPPORTED */
nuclear@26: 
nuclear@26: #ifdef BSD
nuclear@26: #  include <strings.h>
nuclear@26: #else
nuclear@26: #  include <string.h>
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Other defines for things like memory and the like can go here.  */
nuclear@26: #ifdef PNG_INTERNAL
nuclear@26: 
nuclear@26: #include <stdlib.h>
nuclear@26: 
nuclear@26: /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
nuclear@26:  * aren't usually used outside the library (as far as I know), so it is
nuclear@26:  * debatable if they should be exported at all.  In the future, when it is
nuclear@26:  * possible to have run-time registry of chunk-handling functions, some of
nuclear@26:  * these will be made available again.
nuclear@26: #define PNG_EXTERN extern
nuclear@26:  */
nuclear@26: #define PNG_EXTERN
nuclear@26: 
nuclear@26: /* Other defines specific to compilers can go here.  Try to keep
nuclear@26:  * them inside an appropriate ifdef/endif pair for portability.
nuclear@26:  */
nuclear@26: 
nuclear@26: #if defined(PNG_FLOATING_POINT_SUPPORTED)
nuclear@26: #  if defined(MACOS)
nuclear@26:      /* We need to check that <math.h> hasn't already been included earlier
nuclear@26:       * as it seems it doesn't agree with <fp.h>, yet we should really use
nuclear@26:       * <fp.h> if possible.
nuclear@26:       */
nuclear@26: #    if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
nuclear@26: #      include <fp.h>
nuclear@26: #    endif
nuclear@26: #  else
nuclear@26: #    include <math.h>
nuclear@26: #  endif
nuclear@26: #  if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
nuclear@26:      /* Amiga SAS/C: We must include builtin FPU functions when compiling using
nuclear@26:       * MATH=68881
nuclear@26:       */
nuclear@26: #    include <m68881.h>
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Codewarrior on NT has linking problems without this. */
nuclear@26: #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
nuclear@26: #  define PNG_ALWAYS_EXTERN
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* This provides the non-ANSI (far) memory allocation routines. */
nuclear@26: #if defined(__TURBOC__) && defined(__MSDOS__)
nuclear@26: #  include <mem.h>
nuclear@26: #  include <alloc.h>
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* I have no idea why is this necessary... */
nuclear@26: #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
nuclear@26:     defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
nuclear@26: #  include <malloc.h>
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* This controls how fine the dithering gets.  As this allocates
nuclear@26:  * a largish chunk of memory (32K), those who are not as concerned
nuclear@26:  * with dithering quality can decrease some or all of these.
nuclear@26:  */
nuclear@26: #ifndef PNG_DITHER_RED_BITS
nuclear@26: #  define PNG_DITHER_RED_BITS 5
nuclear@26: #endif
nuclear@26: #ifndef PNG_DITHER_GREEN_BITS
nuclear@26: #  define PNG_DITHER_GREEN_BITS 5
nuclear@26: #endif
nuclear@26: #ifndef PNG_DITHER_BLUE_BITS
nuclear@26: #  define PNG_DITHER_BLUE_BITS 5
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* This controls how fine the gamma correction becomes when you
nuclear@26:  * are only interested in 8 bits anyway.  Increasing this value
nuclear@26:  * results in more memory being used, and more pow() functions
nuclear@26:  * being called to fill in the gamma tables.  Don't set this value
nuclear@26:  * less then 8, and even that may not work (I haven't tested it).
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifndef PNG_MAX_GAMMA_8
nuclear@26: #  define PNG_MAX_GAMMA_8 11
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* This controls how much a difference in gamma we can tolerate before
nuclear@26:  * we actually start doing gamma conversion.
nuclear@26:  */
nuclear@26: #ifndef PNG_GAMMA_THRESHOLD
nuclear@26: #  define PNG_GAMMA_THRESHOLD 0.05
nuclear@26: #endif
nuclear@26: 
nuclear@26: #endif /* PNG_INTERNAL */
nuclear@26: 
nuclear@26: /* The following uses const char * instead of char * for error
nuclear@26:  * and warning message functions, so some compilers won't complain.
nuclear@26:  * If you do not want to use const, define PNG_NO_CONST here.
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifndef PNG_NO_CONST
nuclear@26: #  define PNG_CONST const
nuclear@26: #else
nuclear@26: #  define PNG_CONST
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* The following defines give you the ability to remove code from the
nuclear@26:  * library that you will not be using.  I wish I could figure out how to
nuclear@26:  * automate this, but I can't do that without making it seriously hard
nuclear@26:  * on the users.  So if you are not using an ability, change the #define
nuclear@26:  * to and #undef, and that part of the library will not be compiled.  If
nuclear@26:  * your linker can't find a function, you may want to make sure the
nuclear@26:  * ability is defined here.  Some of these depend upon some others being
nuclear@26:  * defined.  I haven't figured out all the interactions here, so you may
nuclear@26:  * have to experiment awhile to get everything to compile.  If you are
nuclear@26:  * creating or using a shared library, you probably shouldn't touch this,
nuclear@26:  * as it will affect the size of the structures, and this will cause bad
nuclear@26:  * things to happen if the library and/or application ever change.
nuclear@26:  */
nuclear@26: 
nuclear@26: /* Any features you will not be using can be undef'ed here */
nuclear@26: 
nuclear@26: /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
nuclear@26:  * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
nuclear@26:  * on the compile line, then pick and choose which ones to define without
nuclear@26:  * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
nuclear@26:  * if you only want to have a png-compliant reader/writer but don't need
nuclear@26:  * any of the extra transformations.  This saves about 80 kbytes in a
nuclear@26:  * typical installation of the library. (PNG_NO_* form added in version
nuclear@26:  * 1.0.1c, for consistency)
nuclear@26:  */
nuclear@26: 
nuclear@26: /* The size of the png_text structure changed in libpng-1.0.6 when
nuclear@26:  * iTXt support was added.  iTXt support was turned off by default through
nuclear@26:  * libpng-1.2.x, to support old apps that malloc the png_text structure
nuclear@26:  * instead of calling png_set_text() and letting libpng malloc it.  It
nuclear@26:  * was turned on by default in libpng-1.3.0.
nuclear@26:  */
nuclear@26: 
nuclear@26: #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
nuclear@26: #  ifndef PNG_NO_iTXt_SUPPORTED
nuclear@26: #    define PNG_NO_iTXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_iTXt
nuclear@26: #    define PNG_NO_READ_iTXt
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_iTXt
nuclear@26: #    define PNG_NO_WRITE_iTXt
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if !defined(PNG_NO_iTXt_SUPPORTED)
nuclear@26: #  if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
nuclear@26: #    define PNG_READ_iTXt
nuclear@26: #  endif
nuclear@26: #  if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
nuclear@26: #    define PNG_WRITE_iTXt
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* The following support, added after version 1.0.0, can be turned off here en
nuclear@26:  * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
nuclear@26:  * with old applications that require the length of png_struct and png_info
nuclear@26:  * to remain unchanged.
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifdef PNG_LEGACY_SUPPORTED
nuclear@26: #  define PNG_NO_FREE_ME
nuclear@26: #  define PNG_NO_READ_UNKNOWN_CHUNKS
nuclear@26: #  define PNG_NO_WRITE_UNKNOWN_CHUNKS
nuclear@26: #  define PNG_NO_READ_USER_CHUNKS
nuclear@26: #  define PNG_NO_READ_iCCP
nuclear@26: #  define PNG_NO_WRITE_iCCP
nuclear@26: #  define PNG_NO_READ_iTXt
nuclear@26: #  define PNG_NO_WRITE_iTXt
nuclear@26: #  define PNG_NO_READ_sCAL
nuclear@26: #  define PNG_NO_WRITE_sCAL
nuclear@26: #  define PNG_NO_READ_sPLT
nuclear@26: #  define PNG_NO_WRITE_sPLT
nuclear@26: #  define PNG_NO_INFO_IMAGE
nuclear@26: #  define PNG_NO_READ_RGB_TO_GRAY
nuclear@26: #  define PNG_NO_READ_USER_TRANSFORM
nuclear@26: #  define PNG_NO_WRITE_USER_TRANSFORM
nuclear@26: #  define PNG_NO_USER_MEM
nuclear@26: #  define PNG_NO_READ_EMPTY_PLTE
nuclear@26: #  define PNG_NO_MNG_FEATURES
nuclear@26: #  define PNG_NO_FIXED_POINT_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Ignore attempt to turn off both floating and fixed point support */
nuclear@26: #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
nuclear@26:     !defined(PNG_NO_FIXED_POINT_SUPPORTED)
nuclear@26: #  define PNG_FIXED_POINT_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef PNG_NO_FREE_ME
nuclear@26: #  define PNG_FREE_ME_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(PNG_READ_SUPPORTED)
nuclear@26: 
nuclear@26: #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
nuclear@26:       !defined(PNG_NO_READ_TRANSFORMS)
nuclear@26: #  define PNG_READ_TRANSFORMS_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_READ_TRANSFORMS_SUPPORTED
nuclear@26: #  ifndef PNG_NO_READ_EXPAND
nuclear@26: #    define PNG_READ_EXPAND_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_SHIFT
nuclear@26: #    define PNG_READ_SHIFT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_PACK
nuclear@26: #    define PNG_READ_PACK_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_BGR
nuclear@26: #    define PNG_READ_BGR_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_SWAP
nuclear@26: #    define PNG_READ_SWAP_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_PACKSWAP
nuclear@26: #    define PNG_READ_PACKSWAP_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_INVERT
nuclear@26: #    define PNG_READ_INVERT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_DITHER
nuclear@26: #    define PNG_READ_DITHER_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_BACKGROUND
nuclear@26: #    define PNG_READ_BACKGROUND_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_16_TO_8
nuclear@26: #    define PNG_READ_16_TO_8_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_FILLER
nuclear@26: #    define PNG_READ_FILLER_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_GAMMA
nuclear@26: #    define PNG_READ_GAMMA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_GRAY_TO_RGB
nuclear@26: #    define PNG_READ_GRAY_TO_RGB_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_SWAP_ALPHA
nuclear@26: #    define PNG_READ_SWAP_ALPHA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_INVERT_ALPHA
nuclear@26: #    define PNG_READ_INVERT_ALPHA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_STRIP_ALPHA
nuclear@26: #    define PNG_READ_STRIP_ALPHA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_USER_TRANSFORM
nuclear@26: #    define PNG_READ_USER_TRANSFORM_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_READ_RGB_TO_GRAY
nuclear@26: #    define PNG_READ_RGB_TO_GRAY_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif /* PNG_READ_TRANSFORMS_SUPPORTED */
nuclear@26: 
nuclear@26: #if !defined(PNG_NO_PROGRESSIVE_READ) && \
nuclear@26:  !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive   */
nuclear@26: #  define PNG_PROGRESSIVE_READ_SUPPORTED  /* reading.  This is not talking */
nuclear@26: #endif                            /* about interlacing capability!  You'll */
nuclear@26:            /* still have interlacing unless you change the following line: */
nuclear@26: 
nuclear@26: #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
nuclear@26: 
nuclear@26: #ifndef PNG_NO_READ_COMPOSITE_NODIV
nuclear@26: #  ifndef PNG_NO_READ_COMPOSITED_NODIV  /* libpng-1.0.x misspelling */
nuclear@26: #    define PNG_READ_COMPOSITE_NODIV_SUPPORTED  /* well tested on Intel, SGI */
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
nuclear@26: /* Deprecated, will be removed from version 2.0.0.
nuclear@26:    Use PNG_MNG_FEATURES_SUPPORTED instead. */
nuclear@26: #ifndef PNG_NO_READ_EMPTY_PLTE
nuclear@26: #  define PNG_READ_EMPTY_PLTE_SUPPORTED
nuclear@26: #endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #endif /* PNG_READ_SUPPORTED */
nuclear@26: 
nuclear@26: #if defined(PNG_WRITE_SUPPORTED)
nuclear@26: 
nuclear@26: # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
nuclear@26:     !defined(PNG_NO_WRITE_TRANSFORMS)
nuclear@26: #  define PNG_WRITE_TRANSFORMS_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
nuclear@26: #  ifndef PNG_NO_WRITE_SHIFT
nuclear@26: #    define PNG_WRITE_SHIFT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_PACK
nuclear@26: #    define PNG_WRITE_PACK_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_BGR
nuclear@26: #    define PNG_WRITE_BGR_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_SWAP
nuclear@26: #    define PNG_WRITE_SWAP_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_PACKSWAP
nuclear@26: #    define PNG_WRITE_PACKSWAP_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_INVERT
nuclear@26: #    define PNG_WRITE_INVERT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_FILLER
nuclear@26: #    define PNG_WRITE_FILLER_SUPPORTED   /* same as WRITE_STRIP_ALPHA */
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_SWAP_ALPHA
nuclear@26: #    define PNG_WRITE_SWAP_ALPHA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_INVERT_ALPHA
nuclear@26: #    define PNG_WRITE_INVERT_ALPHA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_WRITE_USER_TRANSFORM
nuclear@26: #    define PNG_WRITE_USER_TRANSFORM_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
nuclear@26: 
nuclear@26: #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
nuclear@26:     !defined(PNG_WRITE_INTERLACING_SUPPORTED)
nuclear@26: #define PNG_WRITE_INTERLACING_SUPPORTED  /* not required for PNG-compliant
nuclear@26:                                             encoders, but can cause trouble
nuclear@26:                                             if left undefined */
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
nuclear@26:     !defined(PNG_WRITE_WEIGHTED_FILTER) && \
nuclear@26:      defined(PNG_FLOATING_POINT_SUPPORTED)
nuclear@26: #  define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef PNG_NO_WRITE_FLUSH
nuclear@26: #  define PNG_WRITE_FLUSH_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
nuclear@26: /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
nuclear@26: #ifndef PNG_NO_WRITE_EMPTY_PLTE
nuclear@26: #  define PNG_WRITE_EMPTY_PLTE_SUPPORTED
nuclear@26: #endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #endif /* PNG_WRITE_SUPPORTED */
nuclear@26: 
nuclear@26: #ifndef PNG_1_0_X
nuclear@26: #  ifndef PNG_NO_ERROR_NUMBERS
nuclear@26: #    define PNG_ERROR_NUMBERS_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif /* PNG_1_0_X */
nuclear@26: 
nuclear@26: #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
nuclear@26:     defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
nuclear@26: #  ifndef PNG_NO_USER_TRANSFORM_PTR
nuclear@26: #    define PNG_USER_TRANSFORM_PTR_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef PNG_NO_STDIO
nuclear@26: #  define PNG_TIME_RFC1123_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* This adds extra functions in pngget.c for accessing data from the
nuclear@26:  * info pointer (added in version 0.99)
nuclear@26:  * png_get_image_width()
nuclear@26:  * png_get_image_height()
nuclear@26:  * png_get_bit_depth()
nuclear@26:  * png_get_color_type()
nuclear@26:  * png_get_compression_type()
nuclear@26:  * png_get_filter_type()
nuclear@26:  * png_get_interlace_type()
nuclear@26:  * png_get_pixel_aspect_ratio()
nuclear@26:  * png_get_pixels_per_meter()
nuclear@26:  * png_get_x_offset_pixels()
nuclear@26:  * png_get_y_offset_pixels()
nuclear@26:  * png_get_x_offset_microns()
nuclear@26:  * png_get_y_offset_microns()
nuclear@26:  */
nuclear@26: #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
nuclear@26: #  define PNG_EASY_ACCESS_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 
nuclear@26:  * and removed from version 1.2.20.  The following will be removed
nuclear@26:  * from libpng-1.4.0
nuclear@26: */
nuclear@26: 
nuclear@26: #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
nuclear@26: #  ifndef PNG_OPTIMIZED_CODE_SUPPORTED
nuclear@26: #    define PNG_OPTIMIZED_CODE_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
nuclear@26: #  ifndef PNG_ASSEMBLER_CODE_SUPPORTED
nuclear@26: #    define PNG_ASSEMBLER_CODE_SUPPORTED
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #  if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
nuclear@26:      /* work around 64-bit gcc compiler bugs in gcc-3.x */
nuclear@26: #    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
nuclear@26: #      define PNG_NO_MMX_CODE
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #  if defined(__APPLE__)
nuclear@26: #    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
nuclear@26: #      define PNG_NO_MMX_CODE
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #  if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
nuclear@26: #    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
nuclear@26: #      define PNG_NO_MMX_CODE
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #  if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
nuclear@26: #    define PNG_MMX_CODE_SUPPORTED
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #endif
nuclear@26: /* end of obsolete code to be removed from libpng-1.4.0 */
nuclear@26: 
nuclear@26: #if !defined(PNG_1_0_X)
nuclear@26: #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
nuclear@26: #  define PNG_USER_MEM_SUPPORTED
nuclear@26: #endif
nuclear@26: #endif /* PNG_1_0_X */
nuclear@26: 
nuclear@26: /* Added at libpng-1.2.6 */
nuclear@26: #if !defined(PNG_1_0_X)
nuclear@26: #ifndef PNG_SET_USER_LIMITS_SUPPORTED
nuclear@26: #if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
nuclear@26: #  define PNG_SET_USER_LIMITS_SUPPORTED
nuclear@26: #endif
nuclear@26: #endif
nuclear@26: #endif /* PNG_1_0_X */
nuclear@26: 
nuclear@26: /* Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGS no matter
nuclear@26:  * how large, set these limits to 0x7fffffffL
nuclear@26:  */
nuclear@26: #ifndef PNG_USER_WIDTH_MAX
nuclear@26: #  define PNG_USER_WIDTH_MAX 1000000L
nuclear@26: #endif
nuclear@26: #ifndef PNG_USER_HEIGHT_MAX
nuclear@26: #  define PNG_USER_HEIGHT_MAX 1000000L
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* These are currently experimental features, define them if you want */
nuclear@26: 
nuclear@26: /* very little testing */
nuclear@26: /*
nuclear@26: #ifdef PNG_READ_SUPPORTED
nuclear@26: #  ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
nuclear@26: #    define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: */
nuclear@26: 
nuclear@26: /* This is only for PowerPC big-endian and 680x0 systems */
nuclear@26: /* some testing */
nuclear@26: /*
nuclear@26: #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
nuclear@26: #  define PNG_READ_BIG_ENDIAN_SUPPORTED
nuclear@26: #endif
nuclear@26: */
nuclear@26: 
nuclear@26: /* Buggy compilers (e.g., gcc 2.7.2.2) need this */
nuclear@26: /*
nuclear@26: #define PNG_NO_POINTER_INDEXING
nuclear@26: */
nuclear@26: 
nuclear@26: /* These functions are turned off by default, as they will be phased out. */
nuclear@26: /*
nuclear@26: #define  PNG_USELESS_TESTS_SUPPORTED
nuclear@26: #define  PNG_CORRECT_PALETTE_SUPPORTED
nuclear@26: */
nuclear@26: 
nuclear@26: /* Any chunks you are not interested in, you can undef here.  The
nuclear@26:  * ones that allocate memory may be expecially important (hIST,
nuclear@26:  * tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info
nuclear@26:  * a bit smaller.
nuclear@26:  */
nuclear@26: 
nuclear@26: #if defined(PNG_READ_SUPPORTED) && \
nuclear@26:     !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
nuclear@26:     !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
nuclear@26: #  define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(PNG_WRITE_SUPPORTED) && \
nuclear@26:     !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
nuclear@26:     !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
nuclear@26: #  define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
nuclear@26: 
nuclear@26: #ifdef PNG_NO_READ_TEXT
nuclear@26: #  define PNG_NO_READ_iTXt
nuclear@26: #  define PNG_NO_READ_tEXt
nuclear@26: #  define PNG_NO_READ_zTXt
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_bKGD
nuclear@26: #  define PNG_READ_bKGD_SUPPORTED
nuclear@26: #  define PNG_bKGD_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_cHRM
nuclear@26: #  define PNG_READ_cHRM_SUPPORTED
nuclear@26: #  define PNG_cHRM_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_gAMA
nuclear@26: #  define PNG_READ_gAMA_SUPPORTED
nuclear@26: #  define PNG_gAMA_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_hIST
nuclear@26: #  define PNG_READ_hIST_SUPPORTED
nuclear@26: #  define PNG_hIST_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_iCCP
nuclear@26: #  define PNG_READ_iCCP_SUPPORTED
nuclear@26: #  define PNG_iCCP_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_iTXt
nuclear@26: #  ifndef PNG_READ_iTXt_SUPPORTED
nuclear@26: #    define PNG_READ_iTXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_iTXt_SUPPORTED
nuclear@26: #    define PNG_iTXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_oFFs
nuclear@26: #  define PNG_READ_oFFs_SUPPORTED
nuclear@26: #  define PNG_oFFs_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_pCAL
nuclear@26: #  define PNG_READ_pCAL_SUPPORTED
nuclear@26: #  define PNG_pCAL_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_sCAL
nuclear@26: #  define PNG_READ_sCAL_SUPPORTED
nuclear@26: #  define PNG_sCAL_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_pHYs
nuclear@26: #  define PNG_READ_pHYs_SUPPORTED
nuclear@26: #  define PNG_pHYs_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_sBIT
nuclear@26: #  define PNG_READ_sBIT_SUPPORTED
nuclear@26: #  define PNG_sBIT_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_sPLT
nuclear@26: #  define PNG_READ_sPLT_SUPPORTED
nuclear@26: #  define PNG_sPLT_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_sRGB
nuclear@26: #  define PNG_READ_sRGB_SUPPORTED
nuclear@26: #  define PNG_sRGB_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_tEXt
nuclear@26: #  define PNG_READ_tEXt_SUPPORTED
nuclear@26: #  define PNG_tEXt_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_tIME
nuclear@26: #  define PNG_READ_tIME_SUPPORTED
nuclear@26: #  define PNG_tIME_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_tRNS
nuclear@26: #  define PNG_READ_tRNS_SUPPORTED
nuclear@26: #  define PNG_tRNS_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_zTXt
nuclear@26: #  define PNG_READ_zTXt_SUPPORTED
nuclear@26: #  define PNG_zTXt_SUPPORTED
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
nuclear@26: #  define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
nuclear@26: #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
nuclear@26: #    define PNG_UNKNOWN_CHUNKS_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_HANDLE_AS_UNKNOWN
nuclear@26: #    define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #if !defined(PNG_NO_READ_USER_CHUNKS) && \
nuclear@26:      defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
nuclear@26: #  define PNG_READ_USER_CHUNKS_SUPPORTED
nuclear@26: #  define PNG_USER_CHUNKS_SUPPORTED
nuclear@26: #  ifdef PNG_NO_READ_UNKNOWN_CHUNKS
nuclear@26: #    undef PNG_NO_READ_UNKNOWN_CHUNKS
nuclear@26: #  endif
nuclear@26: #  ifdef PNG_NO_HANDLE_AS_UNKNOWN
nuclear@26: #    undef PNG_NO_HANDLE_AS_UNKNOWN
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_READ_OPT_PLTE
nuclear@26: #  define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
nuclear@26: #endif                      /* optional PLTE chunk in RGB and RGBA images */
nuclear@26: #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
nuclear@26:     defined(PNG_READ_zTXt_SUPPORTED)
nuclear@26: #  define PNG_READ_TEXT_SUPPORTED
nuclear@26: #  define PNG_TEXT_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
nuclear@26: 
nuclear@26: #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
nuclear@26: 
nuclear@26: #ifdef PNG_NO_WRITE_TEXT
nuclear@26: #  define PNG_NO_WRITE_iTXt
nuclear@26: #  define PNG_NO_WRITE_tEXt
nuclear@26: #  define PNG_NO_WRITE_zTXt
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_bKGD
nuclear@26: #  define PNG_WRITE_bKGD_SUPPORTED
nuclear@26: #  ifndef PNG_bKGD_SUPPORTED
nuclear@26: #    define PNG_bKGD_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_cHRM
nuclear@26: #  define PNG_WRITE_cHRM_SUPPORTED
nuclear@26: #  ifndef PNG_cHRM_SUPPORTED
nuclear@26: #    define PNG_cHRM_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_gAMA
nuclear@26: #  define PNG_WRITE_gAMA_SUPPORTED
nuclear@26: #  ifndef PNG_gAMA_SUPPORTED
nuclear@26: #    define PNG_gAMA_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_hIST
nuclear@26: #  define PNG_WRITE_hIST_SUPPORTED
nuclear@26: #  ifndef PNG_hIST_SUPPORTED
nuclear@26: #    define PNG_hIST_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_iCCP
nuclear@26: #  define PNG_WRITE_iCCP_SUPPORTED
nuclear@26: #  ifndef PNG_iCCP_SUPPORTED
nuclear@26: #    define PNG_iCCP_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_iTXt
nuclear@26: #  ifndef PNG_WRITE_iTXt_SUPPORTED
nuclear@26: #    define PNG_WRITE_iTXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_iTXt_SUPPORTED
nuclear@26: #    define PNG_iTXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_oFFs
nuclear@26: #  define PNG_WRITE_oFFs_SUPPORTED
nuclear@26: #  ifndef PNG_oFFs_SUPPORTED
nuclear@26: #    define PNG_oFFs_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_pCAL
nuclear@26: #  define PNG_WRITE_pCAL_SUPPORTED
nuclear@26: #  ifndef PNG_pCAL_SUPPORTED
nuclear@26: #    define PNG_pCAL_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_sCAL
nuclear@26: #  define PNG_WRITE_sCAL_SUPPORTED
nuclear@26: #  ifndef PNG_sCAL_SUPPORTED
nuclear@26: #    define PNG_sCAL_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_pHYs
nuclear@26: #  define PNG_WRITE_pHYs_SUPPORTED
nuclear@26: #  ifndef PNG_pHYs_SUPPORTED
nuclear@26: #    define PNG_pHYs_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_sBIT
nuclear@26: #  define PNG_WRITE_sBIT_SUPPORTED
nuclear@26: #  ifndef PNG_sBIT_SUPPORTED
nuclear@26: #    define PNG_sBIT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_sPLT
nuclear@26: #  define PNG_WRITE_sPLT_SUPPORTED
nuclear@26: #  ifndef PNG_sPLT_SUPPORTED
nuclear@26: #    define PNG_sPLT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_sRGB
nuclear@26: #  define PNG_WRITE_sRGB_SUPPORTED
nuclear@26: #  ifndef PNG_sRGB_SUPPORTED
nuclear@26: #    define PNG_sRGB_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_tEXt
nuclear@26: #  define PNG_WRITE_tEXt_SUPPORTED
nuclear@26: #  ifndef PNG_tEXt_SUPPORTED
nuclear@26: #    define PNG_tEXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_tIME
nuclear@26: #  define PNG_WRITE_tIME_SUPPORTED
nuclear@26: #  ifndef PNG_tIME_SUPPORTED
nuclear@26: #    define PNG_tIME_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_tRNS
nuclear@26: #  define PNG_WRITE_tRNS_SUPPORTED
nuclear@26: #  ifndef PNG_tRNS_SUPPORTED
nuclear@26: #    define PNG_tRNS_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_zTXt
nuclear@26: #  define PNG_WRITE_zTXt_SUPPORTED
nuclear@26: #  ifndef PNG_zTXt_SUPPORTED
nuclear@26: #    define PNG_zTXt_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
nuclear@26: #  define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
nuclear@26: #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
nuclear@26: #    define PNG_UNKNOWN_CHUNKS_SUPPORTED
nuclear@26: #  endif
nuclear@26: #  ifndef PNG_NO_HANDLE_AS_UNKNOWN
nuclear@26: #     ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
nuclear@26: #       define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
nuclear@26: #     endif
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
nuclear@26:     defined(PNG_WRITE_zTXt_SUPPORTED)
nuclear@26: #  define PNG_WRITE_TEXT_SUPPORTED
nuclear@26: #  ifndef PNG_TEXT_SUPPORTED
nuclear@26: #    define PNG_TEXT_SUPPORTED
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
nuclear@26: 
nuclear@26: /* Turn this off to disable png_read_png() and
nuclear@26:  * png_write_png() and leave the row_pointers member
nuclear@26:  * out of the info structure.
nuclear@26:  */
nuclear@26: #ifndef PNG_NO_INFO_IMAGE
nuclear@26: #  define PNG_INFO_IMAGE_SUPPORTED
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* need the time information for reading tIME chunks */
nuclear@26: #if defined(PNG_tIME_SUPPORTED)
nuclear@26: #  if !defined(_WIN32_WCE)
nuclear@26:      /* "time.h" functions are not supported on WindowsCE */
nuclear@26: #    include <time.h>
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Some typedefs to get us started.  These should be safe on most of the
nuclear@26:  * common platforms.  The typedefs should be at least as large as the
nuclear@26:  * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
nuclear@26:  * don't have to be exactly that size.  Some compilers dislike passing
nuclear@26:  * unsigned shorts as function parameters, so you may be better off using
nuclear@26:  * unsigned int for png_uint_16.  Likewise, for 64-bit systems, you may
nuclear@26:  * want to have unsigned int for png_uint_32 instead of unsigned long.
nuclear@26:  */
nuclear@26: 
nuclear@26: typedef unsigned long png_uint_32;
nuclear@26: typedef long png_int_32;
nuclear@26: typedef unsigned short png_uint_16;
nuclear@26: typedef short png_int_16;
nuclear@26: typedef unsigned char png_byte;
nuclear@26: 
nuclear@26: /* This is usually size_t.  It is typedef'ed just in case you need it to
nuclear@26:    change (I'm not sure if you will or not, so I thought I'd be safe) */
nuclear@26: #ifdef PNG_SIZE_T
nuclear@26:    typedef PNG_SIZE_T png_size_t;
nuclear@26: #  define png_sizeof(x) png_convert_size(sizeof(x))
nuclear@26: #else
nuclear@26:    typedef size_t png_size_t;
nuclear@26: #  define png_sizeof(x) sizeof(x)
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* The following is needed for medium model support.  It cannot be in the
nuclear@26:  * PNG_INTERNAL section.  Needs modification for other compilers besides
nuclear@26:  * MSC.  Model independent support declares all arrays and pointers to be
nuclear@26:  * large using the far keyword.  The zlib version used must also support
nuclear@26:  * model independent data.  As of version zlib 1.0.4, the necessary changes
nuclear@26:  * have been made in zlib.  The USE_FAR_KEYWORD define triggers other
nuclear@26:  * changes that are needed. (Tim Wegner)
nuclear@26:  */
nuclear@26: 
nuclear@26: /* Separate compiler dependencies (problem here is that zlib.h always
nuclear@26:    defines FAR. (SJT) */
nuclear@26: #ifdef __BORLANDC__
nuclear@26: #  if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
nuclear@26: #    define LDATA 1
nuclear@26: #  else
nuclear@26: #    define LDATA 0
nuclear@26: #  endif
nuclear@26:    /* GRR:  why is Cygwin in here?  Cygwin is not Borland C... */
nuclear@26: #  if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
nuclear@26: #    define PNG_MAX_MALLOC_64K
nuclear@26: #    if (LDATA != 1)
nuclear@26: #      ifndef FAR
nuclear@26: #        define FAR __far
nuclear@26: #      endif
nuclear@26: #      define USE_FAR_KEYWORD
nuclear@26: #    endif   /* LDATA != 1 */
nuclear@26:      /* Possibly useful for moving data out of default segment.
nuclear@26:       * Uncomment it if you want. Could also define FARDATA as
nuclear@26:       * const if your compiler supports it. (SJT)
nuclear@26: #    define FARDATA FAR
nuclear@26:       */
nuclear@26: #  endif  /* __WIN32__, __FLAT__, __CYGWIN__ */
nuclear@26: #endif   /* __BORLANDC__ */
nuclear@26: 
nuclear@26: 
nuclear@26: /* Suggest testing for specific compiler first before testing for
nuclear@26:  * FAR.  The Watcom compiler defines both __MEDIUM__ and M_I86MM,
nuclear@26:  * making reliance oncertain keywords suspect. (SJT)
nuclear@26:  */
nuclear@26: 
nuclear@26: /* MSC Medium model */
nuclear@26: #if defined(FAR)
nuclear@26: #  if defined(M_I86MM)
nuclear@26: #    define USE_FAR_KEYWORD
nuclear@26: #    define FARDATA FAR
nuclear@26: #    include <dos.h>
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* SJT: default case */
nuclear@26: #ifndef FAR
nuclear@26: #  define FAR
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* At this point FAR is always defined */
nuclear@26: #ifndef FARDATA
nuclear@26: #  define FARDATA
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Typedef for floating-point numbers that are converted
nuclear@26:    to fixed-point with a multiple of 100,000, e.g., int_gamma */
nuclear@26: typedef png_int_32 png_fixed_point;
nuclear@26: 
nuclear@26: /* Add typedefs for pointers */
nuclear@26: typedef void            FAR * png_voidp;
nuclear@26: typedef png_byte        FAR * png_bytep;
nuclear@26: typedef png_uint_32     FAR * png_uint_32p;
nuclear@26: typedef png_int_32      FAR * png_int_32p;
nuclear@26: typedef png_uint_16     FAR * png_uint_16p;
nuclear@26: typedef png_int_16      FAR * png_int_16p;
nuclear@26: typedef PNG_CONST char  FAR * png_const_charp;
nuclear@26: typedef char            FAR * png_charp;
nuclear@26: typedef png_fixed_point FAR * png_fixed_point_p;
nuclear@26: 
nuclear@26: #ifndef PNG_NO_STDIO
nuclear@26: #if defined(_WIN32_WCE)
nuclear@26: typedef HANDLE                png_FILE_p;
nuclear@26: #else
nuclear@26: typedef FILE                * png_FILE_p;
nuclear@26: #endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_FLOATING_POINT_SUPPORTED
nuclear@26: typedef double          FAR * png_doublep;
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Pointers to pointers; i.e. arrays */
nuclear@26: typedef png_byte        FAR * FAR * png_bytepp;
nuclear@26: typedef png_uint_32     FAR * FAR * png_uint_32pp;
nuclear@26: typedef png_int_32      FAR * FAR * png_int_32pp;
nuclear@26: typedef png_uint_16     FAR * FAR * png_uint_16pp;
nuclear@26: typedef png_int_16      FAR * FAR * png_int_16pp;
nuclear@26: typedef PNG_CONST char  FAR * FAR * png_const_charpp;
nuclear@26: typedef char            FAR * FAR * png_charpp;
nuclear@26: typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
nuclear@26: #ifdef PNG_FLOATING_POINT_SUPPORTED
nuclear@26: typedef double          FAR * FAR * png_doublepp;
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Pointers to pointers to pointers; i.e., pointer to array */
nuclear@26: typedef char            FAR * FAR * FAR * png_charppp;
nuclear@26: 
nuclear@26: #if defined(PNG_1_0_X) || defined(PNG_1_2_X)
nuclear@26: /* SPC -  Is this stuff deprecated? */
nuclear@26: /* It'll be removed as of libpng-1.3.0 - GR-P */
nuclear@26: /* libpng typedefs for types in zlib. If zlib changes
nuclear@26:  * or another compression library is used, then change these.
nuclear@26:  * Eliminates need to change all the source files.
nuclear@26:  */
nuclear@26: typedef charf *         png_zcharp;
nuclear@26: typedef charf * FAR *   png_zcharpp;
nuclear@26: typedef z_stream FAR *  png_zstreamp;
nuclear@26: #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
nuclear@26: 
nuclear@26: /*
nuclear@26:  * Define PNG_BUILD_DLL if the module being built is a Windows
nuclear@26:  * LIBPNG DLL.
nuclear@26:  *
nuclear@26:  * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
nuclear@26:  * It is equivalent to Microsoft predefined macro _DLL that is
nuclear@26:  * automatically defined when you compile using the share
nuclear@26:  * version of the CRT (C Run-Time library)
nuclear@26:  *
nuclear@26:  * The cygwin mods make this behavior a little different:
nuclear@26:  * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
nuclear@26:  * Define PNG_STATIC if you are building a static library for use with cygwin,
nuclear@26:  *   -or- if you are building an application that you want to link to the
nuclear@26:  *   static library.
nuclear@26:  * PNG_USE_DLL is defined by default (no user action needed) unless one of
nuclear@26:  *   the other flags is defined.
nuclear@26:  */
nuclear@26: 
nuclear@26: #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
nuclear@26: #  define PNG_DLL
nuclear@26: #endif
nuclear@26: /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
nuclear@26:  * When building a static lib, default to no GLOBAL ARRAYS, but allow
nuclear@26:  * command-line override
nuclear@26:  */
nuclear@26: #if defined(__CYGWIN__)
nuclear@26: #  if !defined(PNG_STATIC)
nuclear@26: #    if defined(PNG_USE_GLOBAL_ARRAYS)
nuclear@26: #      undef PNG_USE_GLOBAL_ARRAYS
nuclear@26: #    endif
nuclear@26: #    if !defined(PNG_USE_LOCAL_ARRAYS)
nuclear@26: #      define PNG_USE_LOCAL_ARRAYS
nuclear@26: #    endif
nuclear@26: #  else
nuclear@26: #    if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
nuclear@26: #      if defined(PNG_USE_GLOBAL_ARRAYS)
nuclear@26: #        undef PNG_USE_GLOBAL_ARRAYS
nuclear@26: #      endif
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: #  if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
nuclear@26: #    define PNG_USE_LOCAL_ARRAYS
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Do not use global arrays (helps with building DLL's)
nuclear@26:  * They are no longer used in libpng itself, since version 1.0.5c,
nuclear@26:  * but might be required for some pre-1.0.5c applications.
nuclear@26:  */
nuclear@26: #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
nuclear@26: #  if defined(PNG_NO_GLOBAL_ARRAYS) || \
nuclear@26:       (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
nuclear@26: #    define PNG_USE_LOCAL_ARRAYS
nuclear@26: #  else
nuclear@26: #    define PNG_USE_GLOBAL_ARRAYS
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(__CYGWIN__)
nuclear@26: #  undef PNGAPI
nuclear@26: #  define PNGAPI __cdecl
nuclear@26: #  undef PNG_IMPEXP
nuclear@26: #  define PNG_IMPEXP
nuclear@26: #endif  
nuclear@26: 
nuclear@26: /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
nuclear@26:  * you may get warnings regarding the linkage of png_zalloc and png_zfree.
nuclear@26:  * Don't ignore those warnings; you must also reset the default calling
nuclear@26:  * convention in your compiler to match your PNGAPI, and you must build
nuclear@26:  * zlib and your applications the same way you build libpng.
nuclear@26:  */
nuclear@26: 
nuclear@26: #if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
nuclear@26: #  ifndef PNG_NO_MODULEDEF
nuclear@26: #    define PNG_NO_MODULEDEF
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
nuclear@26: #  define PNG_IMPEXP
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
nuclear@26:     (( defined(_Windows) || defined(_WINDOWS) || \
nuclear@26:        defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
nuclear@26: 
nuclear@26: #  ifndef PNGAPI
nuclear@26: #     if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
nuclear@26: #        define PNGAPI __cdecl
nuclear@26: #     else
nuclear@26: #        define PNGAPI _cdecl
nuclear@26: #     endif
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #  if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
nuclear@26:        0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
nuclear@26: #     define PNG_IMPEXP
nuclear@26: #  endif
nuclear@26: 
nuclear@26: #  if !defined(PNG_IMPEXP)
nuclear@26: 
nuclear@26: #     define PNG_EXPORT_TYPE1(type,symbol)  PNG_IMPEXP type PNGAPI symbol
nuclear@26: #     define PNG_EXPORT_TYPE2(type,symbol)  type PNG_IMPEXP PNGAPI symbol
nuclear@26: 
nuclear@26:       /* Borland/Microsoft */
nuclear@26: #     if defined(_MSC_VER) || defined(__BORLANDC__)
nuclear@26: #        if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
nuclear@26: #           define PNG_EXPORT PNG_EXPORT_TYPE1
nuclear@26: #        else
nuclear@26: #           define PNG_EXPORT PNG_EXPORT_TYPE2
nuclear@26: #           if defined(PNG_BUILD_DLL)
nuclear@26: #              define PNG_IMPEXP __export
nuclear@26: #           else
nuclear@26: #              define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
nuclear@26:                                                  VC++ */
nuclear@26: #           endif                             /* Exists in Borland C++ for
nuclear@26:                                                  C++ classes (== huge) */
nuclear@26: #        endif
nuclear@26: #     endif
nuclear@26: 
nuclear@26: #     if !defined(PNG_IMPEXP)
nuclear@26: #        if defined(PNG_BUILD_DLL)
nuclear@26: #           define PNG_IMPEXP __declspec(dllexport)
nuclear@26: #        else
nuclear@26: #           define PNG_IMPEXP __declspec(dllimport)
nuclear@26: #        endif
nuclear@26: #     endif
nuclear@26: #  endif  /* PNG_IMPEXP */
nuclear@26: #else /* !(DLL || non-cygwin WINDOWS) */
nuclear@26: #   if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
nuclear@26: #      ifndef PNGAPI
nuclear@26: #         define PNGAPI _System
nuclear@26: #      endif
nuclear@26: #   else
nuclear@26: #      if 0 /* ... other platforms, with other meanings */
nuclear@26: #      endif
nuclear@26: #   endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef PNGAPI
nuclear@26: #  define PNGAPI
nuclear@26: #endif
nuclear@26: #ifndef PNG_IMPEXP
nuclear@26: #  define PNG_IMPEXP
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_BUILDSYMS
nuclear@26: #  ifndef PNG_EXPORT
nuclear@26: #    define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
nuclear@26: #  endif
nuclear@26: #  ifdef PNG_USE_GLOBAL_ARRAYS
nuclear@26: #    ifndef PNG_EXPORT_VAR
nuclear@26: #      define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef PNG_EXPORT
nuclear@26: #  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_USE_GLOBAL_ARRAYS
nuclear@26: #  ifndef PNG_EXPORT_VAR
nuclear@26: #    define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* User may want to use these so they are not in PNG_INTERNAL. Any library
nuclear@26:  * functions that are passed far data must be model independent.
nuclear@26:  */
nuclear@26: 
nuclear@26: #ifndef PNG_ABORT
nuclear@26: #  define PNG_ABORT() abort()
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef PNG_SETJMP_SUPPORTED
nuclear@26: #  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
nuclear@26: #else
nuclear@26: #  define png_jmpbuf(png_ptr) \
nuclear@26:    (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(USE_FAR_KEYWORD)  /* memory model independent fns */
nuclear@26: /* use this to make far-to-near assignments */
nuclear@26: #  define CHECK   1
nuclear@26: #  define NOCHECK 0
nuclear@26: #  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
nuclear@26: #  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
nuclear@26: #  define png_snprintf _fsnprintf   /* Added to v 1.2.19 */
nuclear@26: #  define png_strlen  _fstrlen
nuclear@26: #  define png_memcmp  _fmemcmp    /* SJT: added */
nuclear@26: #  define png_memcpy  _fmemcpy
nuclear@26: #  define png_memset  _fmemset
nuclear@26: #else /* use the usual functions */
nuclear@26: #  define CVT_PTR(ptr)         (ptr)
nuclear@26: #  define CVT_PTR_NOCHECK(ptr) (ptr)
nuclear@26: #  ifndef PNG_NO_SNPRINTF
nuclear@26: #    ifdef _MSC_VER
nuclear@26: #      define png_snprintf _snprintf   /* Added to v 1.2.19 */
nuclear@26: #      define png_snprintf2 _snprintf
nuclear@26: #      define png_snprintf6 _snprintf
nuclear@26: #    else
nuclear@26: #      define png_snprintf snprintf   /* Added to v 1.2.19 */
nuclear@26: #      define png_snprintf2 snprintf
nuclear@26: #      define png_snprintf6 snprintf
nuclear@26: #    endif
nuclear@26: #  else
nuclear@26:      /* You don't have or don't want to use snprintf().  Caution: Using
nuclear@26:       * sprintf instead of snprintf exposes your application to accidental
nuclear@26:       * or malevolent buffer overflows.  If you don't have snprintf()
nuclear@26:       * as a general rule you should provide one (you can get one from
nuclear@26:       * Portable OpenSSH). */
nuclear@26: #    define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
nuclear@26: #    define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
nuclear@26: #    define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
nuclear@26:         sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
nuclear@26: #  endif
nuclear@26: #  define png_strlen  strlen
nuclear@26: #  define png_memcmp  memcmp      /* SJT: added */
nuclear@26: #  define png_memcpy  memcpy
nuclear@26: #  define png_memset  memset
nuclear@26: #endif
nuclear@26: /* End of memory model independent support */
nuclear@26: 
nuclear@26: /* Just a little check that someone hasn't tried to define something
nuclear@26:  * contradictory.
nuclear@26:  */
nuclear@26: #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
nuclear@26: #  undef PNG_ZBUF_SIZE
nuclear@26: #  define PNG_ZBUF_SIZE 65536L
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Added at libpng-1.2.8 */
nuclear@26: #endif /* PNG_VERSION_INFO_ONLY */
nuclear@26: 
nuclear@26: #endif /* PNGCONF_H */