dbf-halloween2015

diff libs/libpng/pngconf.h @ 1:c3f5c32cb210

barfed all the libraries in the source tree to make porting easier
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 01 Nov 2015 00:36:56 +0200
parents
children
line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libs/libpng/pngconf.h	Sun Nov 01 00:36:56 2015 +0200
     1.3 @@ -0,0 +1,1481 @@
     1.4 +
     1.5 +/* pngconf.h - machine configurable file for libpng
     1.6 + *
     1.7 + * libpng version 1.2.33 - October 31, 2008
     1.8 + * For conditions of distribution and use, see copyright notice in png.h
     1.9 + * Copyright (c) 1998-2008 Glenn Randers-Pehrson
    1.10 + * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
    1.11 + * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
    1.12 + */
    1.13 +
    1.14 +/* Any machine specific code is near the front of this file, so if you
    1.15 + * are configuring libpng for a machine, you may want to read the section
    1.16 + * starting here down to where it starts to typedef png_color, png_text,
    1.17 + * and png_info.
    1.18 + */
    1.19 +
    1.20 +#ifndef PNGCONF_H
    1.21 +#define PNGCONF_H
    1.22 +
    1.23 +#define PNG_1_2_X
    1.24 +
    1.25 +/* 
    1.26 + * PNG_USER_CONFIG has to be defined on the compiler command line. This
    1.27 + * includes the resource compiler for Windows DLL configurations.
    1.28 + */
    1.29 +#ifdef PNG_USER_CONFIG
    1.30 +#  ifndef PNG_USER_PRIVATEBUILD
    1.31 +#    define PNG_USER_PRIVATEBUILD
    1.32 +#  endif
    1.33 +#include "pngusr.h"
    1.34 +#endif
    1.35 +
    1.36 +/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
    1.37 +#ifdef PNG_CONFIGURE_LIBPNG
    1.38 +#ifdef HAVE_CONFIG_H
    1.39 +#include "config.h"
    1.40 +#endif
    1.41 +#endif
    1.42 +
    1.43 +/*
    1.44 + * Added at libpng-1.2.8
    1.45 + *  
    1.46 + * If you create a private DLL you need to define in "pngusr.h" the followings:
    1.47 + * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
    1.48 + *        the DLL was built>
    1.49 + *  e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
    1.50 + * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
    1.51 + *        distinguish your DLL from those of the official release. These
    1.52 + *        correspond to the trailing letters that come after the version
    1.53 + *        number and must match your private DLL name>
    1.54 + *  e.g. // private DLL "libpng13gx.dll"
    1.55 + *       #define PNG_USER_DLLFNAME_POSTFIX "gx"
    1.56 + * 
    1.57 + * The following macros are also at your disposal if you want to complete the 
    1.58 + * DLL VERSIONINFO structure.
    1.59 + * - PNG_USER_VERSIONINFO_COMMENTS
    1.60 + * - PNG_USER_VERSIONINFO_COMPANYNAME
    1.61 + * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
    1.62 + */
    1.63 +
    1.64 +#ifdef __STDC__
    1.65 +#ifdef SPECIALBUILD
    1.66 +#  pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
    1.67 + are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
    1.68 +#endif
    1.69 +
    1.70 +#ifdef PRIVATEBUILD
    1.71 +# pragma message("PRIVATEBUILD is deprecated.\
    1.72 + Use PNG_USER_PRIVATEBUILD instead.")
    1.73 +# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
    1.74 +#endif
    1.75 +#endif /* __STDC__ */
    1.76 +
    1.77 +#ifndef PNG_VERSION_INFO_ONLY
    1.78 +
    1.79 +/* End of material added to libpng-1.2.8 */
    1.80 +
    1.81 +/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
    1.82 +   Restored at libpng-1.2.21 */
    1.83 +#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
    1.84 +    !defined(PNG_WARN_UNINITIALIZED_ROW)
    1.85 +#  define PNG_WARN_UNINITIALIZED_ROW 1
    1.86 +#endif
    1.87 +/* End of material added at libpng-1.2.19/1.2.21 */
    1.88 +
    1.89 +/* This is the size of the compression buffer, and thus the size of
    1.90 + * an IDAT chunk.  Make this whatever size you feel is best for your
    1.91 + * machine.  One of these will be allocated per png_struct.  When this
    1.92 + * is full, it writes the data to the disk, and does some other
    1.93 + * calculations.  Making this an extremely small size will slow
    1.94 + * the library down, but you may want to experiment to determine
    1.95 + * where it becomes significant, if you are concerned with memory
    1.96 + * usage.  Note that zlib allocates at least 32Kb also.  For readers,
    1.97 + * this describes the size of the buffer available to read the data in.
    1.98 + * Unless this gets smaller than the size of a row (compressed),
    1.99 + * it should not make much difference how big this is.
   1.100 + */
   1.101 +
   1.102 +#ifndef PNG_ZBUF_SIZE
   1.103 +#  define PNG_ZBUF_SIZE 8192
   1.104 +#endif
   1.105 +
   1.106 +/* Enable if you want a write-only libpng */
   1.107 +
   1.108 +#ifndef PNG_NO_READ_SUPPORTED
   1.109 +#  define PNG_READ_SUPPORTED
   1.110 +#endif
   1.111 +
   1.112 +/* Enable if you want a read-only libpng */
   1.113 +
   1.114 +#ifndef PNG_NO_WRITE_SUPPORTED
   1.115 +#  define PNG_WRITE_SUPPORTED
   1.116 +#endif
   1.117 +
   1.118 +/* Enabled by default in 1.2.0.  You can disable this if you don't need to
   1.119 +   support PNGs that are embedded in MNG datastreams */
   1.120 +#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
   1.121 +#  ifndef PNG_MNG_FEATURES_SUPPORTED
   1.122 +#    define PNG_MNG_FEATURES_SUPPORTED
   1.123 +#  endif
   1.124 +#endif
   1.125 +
   1.126 +#ifndef PNG_NO_FLOATING_POINT_SUPPORTED
   1.127 +#  ifndef PNG_FLOATING_POINT_SUPPORTED
   1.128 +#    define PNG_FLOATING_POINT_SUPPORTED
   1.129 +#  endif
   1.130 +#endif
   1.131 +
   1.132 +/* If you are running on a machine where you cannot allocate more
   1.133 + * than 64K of memory at once, uncomment this.  While libpng will not
   1.134 + * normally need that much memory in a chunk (unless you load up a very
   1.135 + * large file), zlib needs to know how big of a chunk it can use, and
   1.136 + * libpng thus makes sure to check any memory allocation to verify it
   1.137 + * will fit into memory.
   1.138 +#define PNG_MAX_MALLOC_64K
   1.139 + */
   1.140 +#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
   1.141 +#  define PNG_MAX_MALLOC_64K
   1.142 +#endif
   1.143 +
   1.144 +/* Special munging to support doing things the 'cygwin' way:
   1.145 + * 'Normal' png-on-win32 defines/defaults:
   1.146 + *   PNG_BUILD_DLL -- building dll
   1.147 + *   PNG_USE_DLL   -- building an application, linking to dll
   1.148 + *   (no define)   -- building static library, or building an
   1.149 + *                    application and linking to the static lib
   1.150 + * 'Cygwin' defines/defaults:
   1.151 + *   PNG_BUILD_DLL -- (ignored) building the dll
   1.152 + *   (no define)   -- (ignored) building an application, linking to the dll
   1.153 + *   PNG_STATIC    -- (ignored) building the static lib, or building an 
   1.154 + *                    application that links to the static lib.
   1.155 + *   ALL_STATIC    -- (ignored) building various static libs, or building an 
   1.156 + *                    application that links to the static libs.
   1.157 + * Thus,
   1.158 + * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
   1.159 + * this bit of #ifdefs will define the 'correct' config variables based on
   1.160 + * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
   1.161 + * unnecessary.
   1.162 + *
   1.163 + * Also, the precedence order is:
   1.164 + *   ALL_STATIC (since we can't #undef something outside our namespace)
   1.165 + *   PNG_BUILD_DLL
   1.166 + *   PNG_STATIC
   1.167 + *   (nothing) == PNG_USE_DLL
   1.168 + * 
   1.169 + * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
   1.170 + *   of auto-import in binutils, we no longer need to worry about 
   1.171 + *   __declspec(dllexport) / __declspec(dllimport) and friends.  Therefore,
   1.172 + *   we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
   1.173 + *   to __declspec() stuff.  However, we DO need to worry about 
   1.174 + *   PNG_BUILD_DLL and PNG_STATIC because those change some defaults
   1.175 + *   such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
   1.176 + */
   1.177 +#if defined(__CYGWIN__)
   1.178 +#  if defined(ALL_STATIC)
   1.179 +#    if defined(PNG_BUILD_DLL)
   1.180 +#      undef PNG_BUILD_DLL
   1.181 +#    endif
   1.182 +#    if defined(PNG_USE_DLL)
   1.183 +#      undef PNG_USE_DLL
   1.184 +#    endif
   1.185 +#    if defined(PNG_DLL)
   1.186 +#      undef PNG_DLL
   1.187 +#    endif
   1.188 +#    if !defined(PNG_STATIC)
   1.189 +#      define PNG_STATIC
   1.190 +#    endif
   1.191 +#  else
   1.192 +#    if defined (PNG_BUILD_DLL)
   1.193 +#      if defined(PNG_STATIC)
   1.194 +#        undef PNG_STATIC
   1.195 +#      endif
   1.196 +#      if defined(PNG_USE_DLL)
   1.197 +#        undef PNG_USE_DLL
   1.198 +#      endif
   1.199 +#      if !defined(PNG_DLL)
   1.200 +#        define PNG_DLL
   1.201 +#      endif
   1.202 +#    else
   1.203 +#      if defined(PNG_STATIC)
   1.204 +#        if defined(PNG_USE_DLL)
   1.205 +#          undef PNG_USE_DLL
   1.206 +#        endif
   1.207 +#        if defined(PNG_DLL)
   1.208 +#          undef PNG_DLL
   1.209 +#        endif
   1.210 +#      else
   1.211 +#        if !defined(PNG_USE_DLL)
   1.212 +#          define PNG_USE_DLL
   1.213 +#        endif
   1.214 +#        if !defined(PNG_DLL)
   1.215 +#          define PNG_DLL
   1.216 +#        endif
   1.217 +#      endif  
   1.218 +#    endif  
   1.219 +#  endif
   1.220 +#endif
   1.221 +
   1.222 +/* This protects us against compilers that run on a windowing system
   1.223 + * and thus don't have or would rather us not use the stdio types:
   1.224 + * stdin, stdout, and stderr.  The only one currently used is stderr
   1.225 + * in png_error() and png_warning().  #defining PNG_NO_CONSOLE_IO will
   1.226 + * prevent these from being compiled and used. #defining PNG_NO_STDIO
   1.227 + * will also prevent these, plus will prevent the entire set of stdio
   1.228 + * macros and functions (FILE *, printf, etc.) from being compiled and used,
   1.229 + * unless (PNG_DEBUG > 0) has been #defined.
   1.230 + *
   1.231 + * #define PNG_NO_CONSOLE_IO
   1.232 + * #define PNG_NO_STDIO
   1.233 + */
   1.234 +
   1.235 +#if defined(_WIN32_WCE)
   1.236 +#  include <windows.h>
   1.237 +   /* Console I/O functions are not supported on WindowsCE */
   1.238 +#  define PNG_NO_CONSOLE_IO
   1.239 +#  ifdef PNG_DEBUG
   1.240 +#    undef PNG_DEBUG
   1.241 +#  endif
   1.242 +#endif
   1.243 +
   1.244 +#ifdef PNG_BUILD_DLL
   1.245 +#  ifndef PNG_CONSOLE_IO_SUPPORTED
   1.246 +#    ifndef PNG_NO_CONSOLE_IO
   1.247 +#      define PNG_NO_CONSOLE_IO
   1.248 +#    endif
   1.249 +#  endif
   1.250 +#endif
   1.251 +
   1.252 +#  ifdef PNG_NO_STDIO
   1.253 +#    ifndef PNG_NO_CONSOLE_IO
   1.254 +#      define PNG_NO_CONSOLE_IO
   1.255 +#    endif
   1.256 +#    ifdef PNG_DEBUG
   1.257 +#      if (PNG_DEBUG > 0)
   1.258 +#        include <stdio.h>
   1.259 +#      endif
   1.260 +#    endif
   1.261 +#  else
   1.262 +#    if !defined(_WIN32_WCE)
   1.263 +/* "stdio.h" functions are not supported on WindowsCE */
   1.264 +#      include <stdio.h>
   1.265 +#    endif
   1.266 +#  endif
   1.267 +
   1.268 +/* This macro protects us against machines that don't have function
   1.269 + * prototypes (ie K&R style headers).  If your compiler does not handle
   1.270 + * function prototypes, define this macro and use the included ansi2knr.
   1.271 + * I've always been able to use _NO_PROTO as the indicator, but you may
   1.272 + * need to drag the empty declaration out in front of here, or change the
   1.273 + * ifdef to suit your own needs.
   1.274 + */
   1.275 +#ifndef PNGARG
   1.276 +
   1.277 +#ifdef OF /* zlib prototype munger */
   1.278 +#  define PNGARG(arglist) OF(arglist)
   1.279 +#else
   1.280 +
   1.281 +#ifdef _NO_PROTO
   1.282 +#  define PNGARG(arglist) ()
   1.283 +#  ifndef PNG_TYPECAST_NULL
   1.284 +#     define PNG_TYPECAST_NULL
   1.285 +#  endif
   1.286 +#else
   1.287 +#  define PNGARG(arglist) arglist
   1.288 +#endif /* _NO_PROTO */
   1.289 +
   1.290 +
   1.291 +#endif /* OF */
   1.292 +
   1.293 +#endif /* PNGARG */
   1.294 +
   1.295 +/* Try to determine if we are compiling on a Mac.  Note that testing for
   1.296 + * just __MWERKS__ is not good enough, because the Codewarrior is now used
   1.297 + * on non-Mac platforms.
   1.298 + */
   1.299 +#ifndef MACOS
   1.300 +#  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
   1.301 +      defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
   1.302 +#    define MACOS
   1.303 +#  endif
   1.304 +#endif
   1.305 +
   1.306 +/* enough people need this for various reasons to include it here */
   1.307 +#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
   1.308 +#  include <sys/types.h>
   1.309 +#endif
   1.310 +
   1.311 +#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
   1.312 +#  define PNG_SETJMP_SUPPORTED
   1.313 +#endif
   1.314 +
   1.315 +#ifdef PNG_SETJMP_SUPPORTED
   1.316 +/* This is an attempt to force a single setjmp behaviour on Linux.  If
   1.317 + * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
   1.318 + */
   1.319 +
   1.320 +#  ifdef __linux__
   1.321 +#    ifdef _BSD_SOURCE
   1.322 +#      define PNG_SAVE_BSD_SOURCE
   1.323 +#      undef _BSD_SOURCE
   1.324 +#    endif
   1.325 +#    ifdef _SETJMP_H
   1.326 +     /* If you encounter a compiler error here, see the explanation
   1.327 +      * near the end of INSTALL.
   1.328 +      */
   1.329 +         __pngconf.h__ already includes setjmp.h;
   1.330 +         __dont__ include it again.;
   1.331 +#    endif
   1.332 +#  endif /* __linux__ */
   1.333 +
   1.334 +   /* include setjmp.h for error handling */
   1.335 +#  include <setjmp.h>
   1.336 +
   1.337 +#  ifdef __linux__
   1.338 +#    ifdef PNG_SAVE_BSD_SOURCE
   1.339 +#      ifndef _BSD_SOURCE
   1.340 +#        define _BSD_SOURCE
   1.341 +#      endif
   1.342 +#      undef PNG_SAVE_BSD_SOURCE
   1.343 +#    endif
   1.344 +#  endif /* __linux__ */
   1.345 +#endif /* PNG_SETJMP_SUPPORTED */
   1.346 +
   1.347 +#ifdef BSD
   1.348 +#  include <strings.h>
   1.349 +#else
   1.350 +#  include <string.h>
   1.351 +#endif
   1.352 +
   1.353 +/* Other defines for things like memory and the like can go here.  */
   1.354 +#ifdef PNG_INTERNAL
   1.355 +
   1.356 +#include <stdlib.h>
   1.357 +
   1.358 +/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
   1.359 + * aren't usually used outside the library (as far as I know), so it is
   1.360 + * debatable if they should be exported at all.  In the future, when it is
   1.361 + * possible to have run-time registry of chunk-handling functions, some of
   1.362 + * these will be made available again.
   1.363 +#define PNG_EXTERN extern
   1.364 + */
   1.365 +#define PNG_EXTERN
   1.366 +
   1.367 +/* Other defines specific to compilers can go here.  Try to keep
   1.368 + * them inside an appropriate ifdef/endif pair for portability.
   1.369 + */
   1.370 +
   1.371 +#if defined(PNG_FLOATING_POINT_SUPPORTED)
   1.372 +#  if defined(MACOS)
   1.373 +     /* We need to check that <math.h> hasn't already been included earlier
   1.374 +      * as it seems it doesn't agree with <fp.h>, yet we should really use
   1.375 +      * <fp.h> if possible.
   1.376 +      */
   1.377 +#    if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
   1.378 +#      include <fp.h>
   1.379 +#    endif
   1.380 +#  else
   1.381 +#    include <math.h>
   1.382 +#  endif
   1.383 +#  if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
   1.384 +     /* Amiga SAS/C: We must include builtin FPU functions when compiling using
   1.385 +      * MATH=68881
   1.386 +      */
   1.387 +#    include <m68881.h>
   1.388 +#  endif
   1.389 +#endif
   1.390 +
   1.391 +/* Codewarrior on NT has linking problems without this. */
   1.392 +#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
   1.393 +#  define PNG_ALWAYS_EXTERN
   1.394 +#endif
   1.395 +
   1.396 +/* This provides the non-ANSI (far) memory allocation routines. */
   1.397 +#if defined(__TURBOC__) && defined(__MSDOS__)
   1.398 +#  include <mem.h>
   1.399 +#  include <alloc.h>
   1.400 +#endif
   1.401 +
   1.402 +/* I have no idea why is this necessary... */
   1.403 +#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
   1.404 +    defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
   1.405 +#  include <malloc.h>
   1.406 +#endif
   1.407 +
   1.408 +/* This controls how fine the dithering gets.  As this allocates
   1.409 + * a largish chunk of memory (32K), those who are not as concerned
   1.410 + * with dithering quality can decrease some or all of these.
   1.411 + */
   1.412 +#ifndef PNG_DITHER_RED_BITS
   1.413 +#  define PNG_DITHER_RED_BITS 5
   1.414 +#endif
   1.415 +#ifndef PNG_DITHER_GREEN_BITS
   1.416 +#  define PNG_DITHER_GREEN_BITS 5
   1.417 +#endif
   1.418 +#ifndef PNG_DITHER_BLUE_BITS
   1.419 +#  define PNG_DITHER_BLUE_BITS 5
   1.420 +#endif
   1.421 +
   1.422 +/* This controls how fine the gamma correction becomes when you
   1.423 + * are only interested in 8 bits anyway.  Increasing this value
   1.424 + * results in more memory being used, and more pow() functions
   1.425 + * being called to fill in the gamma tables.  Don't set this value
   1.426 + * less then 8, and even that may not work (I haven't tested it).
   1.427 + */
   1.428 +
   1.429 +#ifndef PNG_MAX_GAMMA_8
   1.430 +#  define PNG_MAX_GAMMA_8 11
   1.431 +#endif
   1.432 +
   1.433 +/* This controls how much a difference in gamma we can tolerate before
   1.434 + * we actually start doing gamma conversion.
   1.435 + */
   1.436 +#ifndef PNG_GAMMA_THRESHOLD
   1.437 +#  define PNG_GAMMA_THRESHOLD 0.05
   1.438 +#endif
   1.439 +
   1.440 +#endif /* PNG_INTERNAL */
   1.441 +
   1.442 +/* The following uses const char * instead of char * for error
   1.443 + * and warning message functions, so some compilers won't complain.
   1.444 + * If you do not want to use const, define PNG_NO_CONST here.
   1.445 + */
   1.446 +
   1.447 +#ifndef PNG_NO_CONST
   1.448 +#  define PNG_CONST const
   1.449 +#else
   1.450 +#  define PNG_CONST
   1.451 +#endif
   1.452 +
   1.453 +/* The following defines give you the ability to remove code from the
   1.454 + * library that you will not be using.  I wish I could figure out how to
   1.455 + * automate this, but I can't do that without making it seriously hard
   1.456 + * on the users.  So if you are not using an ability, change the #define
   1.457 + * to and #undef, and that part of the library will not be compiled.  If
   1.458 + * your linker can't find a function, you may want to make sure the
   1.459 + * ability is defined here.  Some of these depend upon some others being
   1.460 + * defined.  I haven't figured out all the interactions here, so you may
   1.461 + * have to experiment awhile to get everything to compile.  If you are
   1.462 + * creating or using a shared library, you probably shouldn't touch this,
   1.463 + * as it will affect the size of the structures, and this will cause bad
   1.464 + * things to happen if the library and/or application ever change.
   1.465 + */
   1.466 +
   1.467 +/* Any features you will not be using can be undef'ed here */
   1.468 +
   1.469 +/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
   1.470 + * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
   1.471 + * on the compile line, then pick and choose which ones to define without
   1.472 + * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
   1.473 + * if you only want to have a png-compliant reader/writer but don't need
   1.474 + * any of the extra transformations.  This saves about 80 kbytes in a
   1.475 + * typical installation of the library. (PNG_NO_* form added in version
   1.476 + * 1.0.1c, for consistency)
   1.477 + */
   1.478 +
   1.479 +/* The size of the png_text structure changed in libpng-1.0.6 when
   1.480 + * iTXt support was added.  iTXt support was turned off by default through
   1.481 + * libpng-1.2.x, to support old apps that malloc the png_text structure
   1.482 + * instead of calling png_set_text() and letting libpng malloc it.  It
   1.483 + * was turned on by default in libpng-1.3.0.
   1.484 + */
   1.485 +
   1.486 +#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
   1.487 +#  ifndef PNG_NO_iTXt_SUPPORTED
   1.488 +#    define PNG_NO_iTXt_SUPPORTED
   1.489 +#  endif
   1.490 +#  ifndef PNG_NO_READ_iTXt
   1.491 +#    define PNG_NO_READ_iTXt
   1.492 +#  endif
   1.493 +#  ifndef PNG_NO_WRITE_iTXt
   1.494 +#    define PNG_NO_WRITE_iTXt
   1.495 +#  endif
   1.496 +#endif
   1.497 +
   1.498 +#if !defined(PNG_NO_iTXt_SUPPORTED)
   1.499 +#  if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
   1.500 +#    define PNG_READ_iTXt
   1.501 +#  endif
   1.502 +#  if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
   1.503 +#    define PNG_WRITE_iTXt
   1.504 +#  endif
   1.505 +#endif
   1.506 +
   1.507 +/* The following support, added after version 1.0.0, can be turned off here en
   1.508 + * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
   1.509 + * with old applications that require the length of png_struct and png_info
   1.510 + * to remain unchanged.
   1.511 + */
   1.512 +
   1.513 +#ifdef PNG_LEGACY_SUPPORTED
   1.514 +#  define PNG_NO_FREE_ME
   1.515 +#  define PNG_NO_READ_UNKNOWN_CHUNKS
   1.516 +#  define PNG_NO_WRITE_UNKNOWN_CHUNKS
   1.517 +#  define PNG_NO_READ_USER_CHUNKS
   1.518 +#  define PNG_NO_READ_iCCP
   1.519 +#  define PNG_NO_WRITE_iCCP
   1.520 +#  define PNG_NO_READ_iTXt
   1.521 +#  define PNG_NO_WRITE_iTXt
   1.522 +#  define PNG_NO_READ_sCAL
   1.523 +#  define PNG_NO_WRITE_sCAL
   1.524 +#  define PNG_NO_READ_sPLT
   1.525 +#  define PNG_NO_WRITE_sPLT
   1.526 +#  define PNG_NO_INFO_IMAGE
   1.527 +#  define PNG_NO_READ_RGB_TO_GRAY
   1.528 +#  define PNG_NO_READ_USER_TRANSFORM
   1.529 +#  define PNG_NO_WRITE_USER_TRANSFORM
   1.530 +#  define PNG_NO_USER_MEM
   1.531 +#  define PNG_NO_READ_EMPTY_PLTE
   1.532 +#  define PNG_NO_MNG_FEATURES
   1.533 +#  define PNG_NO_FIXED_POINT_SUPPORTED
   1.534 +#endif
   1.535 +
   1.536 +/* Ignore attempt to turn off both floating and fixed point support */
   1.537 +#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
   1.538 +    !defined(PNG_NO_FIXED_POINT_SUPPORTED)
   1.539 +#  define PNG_FIXED_POINT_SUPPORTED
   1.540 +#endif
   1.541 +
   1.542 +#ifndef PNG_NO_FREE_ME
   1.543 +#  define PNG_FREE_ME_SUPPORTED
   1.544 +#endif
   1.545 +
   1.546 +#if defined(PNG_READ_SUPPORTED)
   1.547 +
   1.548 +#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
   1.549 +      !defined(PNG_NO_READ_TRANSFORMS)
   1.550 +#  define PNG_READ_TRANSFORMS_SUPPORTED
   1.551 +#endif
   1.552 +
   1.553 +#ifdef PNG_READ_TRANSFORMS_SUPPORTED
   1.554 +#  ifndef PNG_NO_READ_EXPAND
   1.555 +#    define PNG_READ_EXPAND_SUPPORTED
   1.556 +#  endif
   1.557 +#  ifndef PNG_NO_READ_SHIFT
   1.558 +#    define PNG_READ_SHIFT_SUPPORTED
   1.559 +#  endif
   1.560 +#  ifndef PNG_NO_READ_PACK
   1.561 +#    define PNG_READ_PACK_SUPPORTED
   1.562 +#  endif
   1.563 +#  ifndef PNG_NO_READ_BGR
   1.564 +#    define PNG_READ_BGR_SUPPORTED
   1.565 +#  endif
   1.566 +#  ifndef PNG_NO_READ_SWAP
   1.567 +#    define PNG_READ_SWAP_SUPPORTED
   1.568 +#  endif
   1.569 +#  ifndef PNG_NO_READ_PACKSWAP
   1.570 +#    define PNG_READ_PACKSWAP_SUPPORTED
   1.571 +#  endif
   1.572 +#  ifndef PNG_NO_READ_INVERT
   1.573 +#    define PNG_READ_INVERT_SUPPORTED
   1.574 +#  endif
   1.575 +#  ifndef PNG_NO_READ_DITHER
   1.576 +#    define PNG_READ_DITHER_SUPPORTED
   1.577 +#  endif
   1.578 +#  ifndef PNG_NO_READ_BACKGROUND
   1.579 +#    define PNG_READ_BACKGROUND_SUPPORTED
   1.580 +#  endif
   1.581 +#  ifndef PNG_NO_READ_16_TO_8
   1.582 +#    define PNG_READ_16_TO_8_SUPPORTED
   1.583 +#  endif
   1.584 +#  ifndef PNG_NO_READ_FILLER
   1.585 +#    define PNG_READ_FILLER_SUPPORTED
   1.586 +#  endif
   1.587 +#  ifndef PNG_NO_READ_GAMMA
   1.588 +#    define PNG_READ_GAMMA_SUPPORTED
   1.589 +#  endif
   1.590 +#  ifndef PNG_NO_READ_GRAY_TO_RGB
   1.591 +#    define PNG_READ_GRAY_TO_RGB_SUPPORTED
   1.592 +#  endif
   1.593 +#  ifndef PNG_NO_READ_SWAP_ALPHA
   1.594 +#    define PNG_READ_SWAP_ALPHA_SUPPORTED
   1.595 +#  endif
   1.596 +#  ifndef PNG_NO_READ_INVERT_ALPHA
   1.597 +#    define PNG_READ_INVERT_ALPHA_SUPPORTED
   1.598 +#  endif
   1.599 +#  ifndef PNG_NO_READ_STRIP_ALPHA
   1.600 +#    define PNG_READ_STRIP_ALPHA_SUPPORTED
   1.601 +#  endif
   1.602 +#  ifndef PNG_NO_READ_USER_TRANSFORM
   1.603 +#    define PNG_READ_USER_TRANSFORM_SUPPORTED
   1.604 +#  endif
   1.605 +#  ifndef PNG_NO_READ_RGB_TO_GRAY
   1.606 +#    define PNG_READ_RGB_TO_GRAY_SUPPORTED
   1.607 +#  endif
   1.608 +#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
   1.609 +
   1.610 +#if !defined(PNG_NO_PROGRESSIVE_READ) && \
   1.611 + !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive   */
   1.612 +#  define PNG_PROGRESSIVE_READ_SUPPORTED  /* reading.  This is not talking */
   1.613 +#endif                            /* about interlacing capability!  You'll */
   1.614 +           /* still have interlacing unless you change the following line: */
   1.615 +
   1.616 +#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
   1.617 +
   1.618 +#ifndef PNG_NO_READ_COMPOSITE_NODIV
   1.619 +#  ifndef PNG_NO_READ_COMPOSITED_NODIV  /* libpng-1.0.x misspelling */
   1.620 +#    define PNG_READ_COMPOSITE_NODIV_SUPPORTED  /* well tested on Intel, SGI */
   1.621 +#  endif
   1.622 +#endif
   1.623 +
   1.624 +#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
   1.625 +/* Deprecated, will be removed from version 2.0.0.
   1.626 +   Use PNG_MNG_FEATURES_SUPPORTED instead. */
   1.627 +#ifndef PNG_NO_READ_EMPTY_PLTE
   1.628 +#  define PNG_READ_EMPTY_PLTE_SUPPORTED
   1.629 +#endif
   1.630 +#endif
   1.631 +
   1.632 +#endif /* PNG_READ_SUPPORTED */
   1.633 +
   1.634 +#if defined(PNG_WRITE_SUPPORTED)
   1.635 +
   1.636 +# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
   1.637 +    !defined(PNG_NO_WRITE_TRANSFORMS)
   1.638 +#  define PNG_WRITE_TRANSFORMS_SUPPORTED
   1.639 +#endif
   1.640 +
   1.641 +#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
   1.642 +#  ifndef PNG_NO_WRITE_SHIFT
   1.643 +#    define PNG_WRITE_SHIFT_SUPPORTED
   1.644 +#  endif
   1.645 +#  ifndef PNG_NO_WRITE_PACK
   1.646 +#    define PNG_WRITE_PACK_SUPPORTED
   1.647 +#  endif
   1.648 +#  ifndef PNG_NO_WRITE_BGR
   1.649 +#    define PNG_WRITE_BGR_SUPPORTED
   1.650 +#  endif
   1.651 +#  ifndef PNG_NO_WRITE_SWAP
   1.652 +#    define PNG_WRITE_SWAP_SUPPORTED
   1.653 +#  endif
   1.654 +#  ifndef PNG_NO_WRITE_PACKSWAP
   1.655 +#    define PNG_WRITE_PACKSWAP_SUPPORTED
   1.656 +#  endif
   1.657 +#  ifndef PNG_NO_WRITE_INVERT
   1.658 +#    define PNG_WRITE_INVERT_SUPPORTED
   1.659 +#  endif
   1.660 +#  ifndef PNG_NO_WRITE_FILLER
   1.661 +#    define PNG_WRITE_FILLER_SUPPORTED   /* same as WRITE_STRIP_ALPHA */
   1.662 +#  endif
   1.663 +#  ifndef PNG_NO_WRITE_SWAP_ALPHA
   1.664 +#    define PNG_WRITE_SWAP_ALPHA_SUPPORTED
   1.665 +#  endif
   1.666 +#  ifndef PNG_NO_WRITE_INVERT_ALPHA
   1.667 +#    define PNG_WRITE_INVERT_ALPHA_SUPPORTED
   1.668 +#  endif
   1.669 +#  ifndef PNG_NO_WRITE_USER_TRANSFORM
   1.670 +#    define PNG_WRITE_USER_TRANSFORM_SUPPORTED
   1.671 +#  endif
   1.672 +#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
   1.673 +
   1.674 +#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
   1.675 +    !defined(PNG_WRITE_INTERLACING_SUPPORTED)
   1.676 +#define PNG_WRITE_INTERLACING_SUPPORTED  /* not required for PNG-compliant
   1.677 +                                            encoders, but can cause trouble
   1.678 +                                            if left undefined */
   1.679 +#endif
   1.680 +
   1.681 +#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
   1.682 +    !defined(PNG_WRITE_WEIGHTED_FILTER) && \
   1.683 +     defined(PNG_FLOATING_POINT_SUPPORTED)
   1.684 +#  define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
   1.685 +#endif
   1.686 +
   1.687 +#ifndef PNG_NO_WRITE_FLUSH
   1.688 +#  define PNG_WRITE_FLUSH_SUPPORTED
   1.689 +#endif
   1.690 +
   1.691 +#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
   1.692 +/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
   1.693 +#ifndef PNG_NO_WRITE_EMPTY_PLTE
   1.694 +#  define PNG_WRITE_EMPTY_PLTE_SUPPORTED
   1.695 +#endif
   1.696 +#endif
   1.697 +
   1.698 +#endif /* PNG_WRITE_SUPPORTED */
   1.699 +
   1.700 +#ifndef PNG_1_0_X
   1.701 +#  ifndef PNG_NO_ERROR_NUMBERS
   1.702 +#    define PNG_ERROR_NUMBERS_SUPPORTED
   1.703 +#  endif
   1.704 +#endif /* PNG_1_0_X */
   1.705 +
   1.706 +#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
   1.707 +    defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
   1.708 +#  ifndef PNG_NO_USER_TRANSFORM_PTR
   1.709 +#    define PNG_USER_TRANSFORM_PTR_SUPPORTED
   1.710 +#  endif
   1.711 +#endif
   1.712 +
   1.713 +#ifndef PNG_NO_STDIO
   1.714 +#  define PNG_TIME_RFC1123_SUPPORTED
   1.715 +#endif
   1.716 +
   1.717 +/* This adds extra functions in pngget.c for accessing data from the
   1.718 + * info pointer (added in version 0.99)
   1.719 + * png_get_image_width()
   1.720 + * png_get_image_height()
   1.721 + * png_get_bit_depth()
   1.722 + * png_get_color_type()
   1.723 + * png_get_compression_type()
   1.724 + * png_get_filter_type()
   1.725 + * png_get_interlace_type()
   1.726 + * png_get_pixel_aspect_ratio()
   1.727 + * png_get_pixels_per_meter()
   1.728 + * png_get_x_offset_pixels()
   1.729 + * png_get_y_offset_pixels()
   1.730 + * png_get_x_offset_microns()
   1.731 + * png_get_y_offset_microns()
   1.732 + */
   1.733 +#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
   1.734 +#  define PNG_EASY_ACCESS_SUPPORTED
   1.735 +#endif
   1.736 +
   1.737 +/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 
   1.738 + * and removed from version 1.2.20.  The following will be removed
   1.739 + * from libpng-1.4.0
   1.740 +*/
   1.741 +
   1.742 +#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
   1.743 +#  ifndef PNG_OPTIMIZED_CODE_SUPPORTED
   1.744 +#    define PNG_OPTIMIZED_CODE_SUPPORTED
   1.745 +#  endif
   1.746 +#endif
   1.747 +
   1.748 +#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
   1.749 +#  ifndef PNG_ASSEMBLER_CODE_SUPPORTED
   1.750 +#    define PNG_ASSEMBLER_CODE_SUPPORTED
   1.751 +#  endif
   1.752 +
   1.753 +#  if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
   1.754 +     /* work around 64-bit gcc compiler bugs in gcc-3.x */
   1.755 +#    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
   1.756 +#      define PNG_NO_MMX_CODE
   1.757 +#    endif
   1.758 +#  endif
   1.759 +
   1.760 +#  if defined(__APPLE__)
   1.761 +#    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
   1.762 +#      define PNG_NO_MMX_CODE
   1.763 +#    endif
   1.764 +#  endif
   1.765 +
   1.766 +#  if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
   1.767 +#    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
   1.768 +#      define PNG_NO_MMX_CODE
   1.769 +#    endif
   1.770 +#  endif
   1.771 +
   1.772 +#  if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
   1.773 +#    define PNG_MMX_CODE_SUPPORTED
   1.774 +#  endif
   1.775 +
   1.776 +#endif
   1.777 +/* end of obsolete code to be removed from libpng-1.4.0 */
   1.778 +
   1.779 +#if !defined(PNG_1_0_X)
   1.780 +#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
   1.781 +#  define PNG_USER_MEM_SUPPORTED
   1.782 +#endif
   1.783 +#endif /* PNG_1_0_X */
   1.784 +
   1.785 +/* Added at libpng-1.2.6 */
   1.786 +#if !defined(PNG_1_0_X)
   1.787 +#ifndef PNG_SET_USER_LIMITS_SUPPORTED
   1.788 +#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
   1.789 +#  define PNG_SET_USER_LIMITS_SUPPORTED
   1.790 +#endif
   1.791 +#endif
   1.792 +#endif /* PNG_1_0_X */
   1.793 +
   1.794 +/* Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGS no matter
   1.795 + * how large, set these limits to 0x7fffffffL
   1.796 + */
   1.797 +#ifndef PNG_USER_WIDTH_MAX
   1.798 +#  define PNG_USER_WIDTH_MAX 1000000L
   1.799 +#endif
   1.800 +#ifndef PNG_USER_HEIGHT_MAX
   1.801 +#  define PNG_USER_HEIGHT_MAX 1000000L
   1.802 +#endif
   1.803 +
   1.804 +/* These are currently experimental features, define them if you want */
   1.805 +
   1.806 +/* very little testing */
   1.807 +/*
   1.808 +#ifdef PNG_READ_SUPPORTED
   1.809 +#  ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
   1.810 +#    define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
   1.811 +#  endif
   1.812 +#endif
   1.813 +*/
   1.814 +
   1.815 +/* This is only for PowerPC big-endian and 680x0 systems */
   1.816 +/* some testing */
   1.817 +/*
   1.818 +#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
   1.819 +#  define PNG_READ_BIG_ENDIAN_SUPPORTED
   1.820 +#endif
   1.821 +*/
   1.822 +
   1.823 +/* Buggy compilers (e.g., gcc 2.7.2.2) need this */
   1.824 +/*
   1.825 +#define PNG_NO_POINTER_INDEXING
   1.826 +*/
   1.827 +
   1.828 +/* These functions are turned off by default, as they will be phased out. */
   1.829 +/*
   1.830 +#define  PNG_USELESS_TESTS_SUPPORTED
   1.831 +#define  PNG_CORRECT_PALETTE_SUPPORTED
   1.832 +*/
   1.833 +
   1.834 +/* Any chunks you are not interested in, you can undef here.  The
   1.835 + * ones that allocate memory may be expecially important (hIST,
   1.836 + * tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info
   1.837 + * a bit smaller.
   1.838 + */
   1.839 +
   1.840 +#if defined(PNG_READ_SUPPORTED) && \
   1.841 +    !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
   1.842 +    !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
   1.843 +#  define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
   1.844 +#endif
   1.845 +
   1.846 +#if defined(PNG_WRITE_SUPPORTED) && \
   1.847 +    !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
   1.848 +    !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
   1.849 +#  define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
   1.850 +#endif
   1.851 +
   1.852 +#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
   1.853 +
   1.854 +#ifdef PNG_NO_READ_TEXT
   1.855 +#  define PNG_NO_READ_iTXt
   1.856 +#  define PNG_NO_READ_tEXt
   1.857 +#  define PNG_NO_READ_zTXt
   1.858 +#endif
   1.859 +#ifndef PNG_NO_READ_bKGD
   1.860 +#  define PNG_READ_bKGD_SUPPORTED
   1.861 +#  define PNG_bKGD_SUPPORTED
   1.862 +#endif
   1.863 +#ifndef PNG_NO_READ_cHRM
   1.864 +#  define PNG_READ_cHRM_SUPPORTED
   1.865 +#  define PNG_cHRM_SUPPORTED
   1.866 +#endif
   1.867 +#ifndef PNG_NO_READ_gAMA
   1.868 +#  define PNG_READ_gAMA_SUPPORTED
   1.869 +#  define PNG_gAMA_SUPPORTED
   1.870 +#endif
   1.871 +#ifndef PNG_NO_READ_hIST
   1.872 +#  define PNG_READ_hIST_SUPPORTED
   1.873 +#  define PNG_hIST_SUPPORTED
   1.874 +#endif
   1.875 +#ifndef PNG_NO_READ_iCCP
   1.876 +#  define PNG_READ_iCCP_SUPPORTED
   1.877 +#  define PNG_iCCP_SUPPORTED
   1.878 +#endif
   1.879 +#ifndef PNG_NO_READ_iTXt
   1.880 +#  ifndef PNG_READ_iTXt_SUPPORTED
   1.881 +#    define PNG_READ_iTXt_SUPPORTED
   1.882 +#  endif
   1.883 +#  ifndef PNG_iTXt_SUPPORTED
   1.884 +#    define PNG_iTXt_SUPPORTED
   1.885 +#  endif
   1.886 +#endif
   1.887 +#ifndef PNG_NO_READ_oFFs
   1.888 +#  define PNG_READ_oFFs_SUPPORTED
   1.889 +#  define PNG_oFFs_SUPPORTED
   1.890 +#endif
   1.891 +#ifndef PNG_NO_READ_pCAL
   1.892 +#  define PNG_READ_pCAL_SUPPORTED
   1.893 +#  define PNG_pCAL_SUPPORTED
   1.894 +#endif
   1.895 +#ifndef PNG_NO_READ_sCAL
   1.896 +#  define PNG_READ_sCAL_SUPPORTED
   1.897 +#  define PNG_sCAL_SUPPORTED
   1.898 +#endif
   1.899 +#ifndef PNG_NO_READ_pHYs
   1.900 +#  define PNG_READ_pHYs_SUPPORTED
   1.901 +#  define PNG_pHYs_SUPPORTED
   1.902 +#endif
   1.903 +#ifndef PNG_NO_READ_sBIT
   1.904 +#  define PNG_READ_sBIT_SUPPORTED
   1.905 +#  define PNG_sBIT_SUPPORTED
   1.906 +#endif
   1.907 +#ifndef PNG_NO_READ_sPLT
   1.908 +#  define PNG_READ_sPLT_SUPPORTED
   1.909 +#  define PNG_sPLT_SUPPORTED
   1.910 +#endif
   1.911 +#ifndef PNG_NO_READ_sRGB
   1.912 +#  define PNG_READ_sRGB_SUPPORTED
   1.913 +#  define PNG_sRGB_SUPPORTED
   1.914 +#endif
   1.915 +#ifndef PNG_NO_READ_tEXt
   1.916 +#  define PNG_READ_tEXt_SUPPORTED
   1.917 +#  define PNG_tEXt_SUPPORTED
   1.918 +#endif
   1.919 +#ifndef PNG_NO_READ_tIME
   1.920 +#  define PNG_READ_tIME_SUPPORTED
   1.921 +#  define PNG_tIME_SUPPORTED
   1.922 +#endif
   1.923 +#ifndef PNG_NO_READ_tRNS
   1.924 +#  define PNG_READ_tRNS_SUPPORTED
   1.925 +#  define PNG_tRNS_SUPPORTED
   1.926 +#endif
   1.927 +#ifndef PNG_NO_READ_zTXt
   1.928 +#  define PNG_READ_zTXt_SUPPORTED
   1.929 +#  define PNG_zTXt_SUPPORTED
   1.930 +#endif
   1.931 +#ifndef PNG_NO_READ_UNKNOWN_CHUNKS
   1.932 +#  define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
   1.933 +#  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
   1.934 +#    define PNG_UNKNOWN_CHUNKS_SUPPORTED
   1.935 +#  endif
   1.936 +#  ifndef PNG_NO_HANDLE_AS_UNKNOWN
   1.937 +#    define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
   1.938 +#  endif
   1.939 +#endif
   1.940 +#if !defined(PNG_NO_READ_USER_CHUNKS) && \
   1.941 +     defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
   1.942 +#  define PNG_READ_USER_CHUNKS_SUPPORTED
   1.943 +#  define PNG_USER_CHUNKS_SUPPORTED
   1.944 +#  ifdef PNG_NO_READ_UNKNOWN_CHUNKS
   1.945 +#    undef PNG_NO_READ_UNKNOWN_CHUNKS
   1.946 +#  endif
   1.947 +#  ifdef PNG_NO_HANDLE_AS_UNKNOWN
   1.948 +#    undef PNG_NO_HANDLE_AS_UNKNOWN
   1.949 +#  endif
   1.950 +#endif
   1.951 +#ifndef PNG_NO_READ_OPT_PLTE
   1.952 +#  define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
   1.953 +#endif                      /* optional PLTE chunk in RGB and RGBA images */
   1.954 +#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
   1.955 +    defined(PNG_READ_zTXt_SUPPORTED)
   1.956 +#  define PNG_READ_TEXT_SUPPORTED
   1.957 +#  define PNG_TEXT_SUPPORTED
   1.958 +#endif
   1.959 +
   1.960 +#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
   1.961 +
   1.962 +#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
   1.963 +
   1.964 +#ifdef PNG_NO_WRITE_TEXT
   1.965 +#  define PNG_NO_WRITE_iTXt
   1.966 +#  define PNG_NO_WRITE_tEXt
   1.967 +#  define PNG_NO_WRITE_zTXt
   1.968 +#endif
   1.969 +#ifndef PNG_NO_WRITE_bKGD
   1.970 +#  define PNG_WRITE_bKGD_SUPPORTED
   1.971 +#  ifndef PNG_bKGD_SUPPORTED
   1.972 +#    define PNG_bKGD_SUPPORTED
   1.973 +#  endif
   1.974 +#endif
   1.975 +#ifndef PNG_NO_WRITE_cHRM
   1.976 +#  define PNG_WRITE_cHRM_SUPPORTED
   1.977 +#  ifndef PNG_cHRM_SUPPORTED
   1.978 +#    define PNG_cHRM_SUPPORTED
   1.979 +#  endif
   1.980 +#endif
   1.981 +#ifndef PNG_NO_WRITE_gAMA
   1.982 +#  define PNG_WRITE_gAMA_SUPPORTED
   1.983 +#  ifndef PNG_gAMA_SUPPORTED
   1.984 +#    define PNG_gAMA_SUPPORTED
   1.985 +#  endif
   1.986 +#endif
   1.987 +#ifndef PNG_NO_WRITE_hIST
   1.988 +#  define PNG_WRITE_hIST_SUPPORTED
   1.989 +#  ifndef PNG_hIST_SUPPORTED
   1.990 +#    define PNG_hIST_SUPPORTED
   1.991 +#  endif
   1.992 +#endif
   1.993 +#ifndef PNG_NO_WRITE_iCCP
   1.994 +#  define PNG_WRITE_iCCP_SUPPORTED
   1.995 +#  ifndef PNG_iCCP_SUPPORTED
   1.996 +#    define PNG_iCCP_SUPPORTED
   1.997 +#  endif
   1.998 +#endif
   1.999 +#ifndef PNG_NO_WRITE_iTXt
  1.1000 +#  ifndef PNG_WRITE_iTXt_SUPPORTED
  1.1001 +#    define PNG_WRITE_iTXt_SUPPORTED
  1.1002 +#  endif
  1.1003 +#  ifndef PNG_iTXt_SUPPORTED
  1.1004 +#    define PNG_iTXt_SUPPORTED
  1.1005 +#  endif
  1.1006 +#endif
  1.1007 +#ifndef PNG_NO_WRITE_oFFs
  1.1008 +#  define PNG_WRITE_oFFs_SUPPORTED
  1.1009 +#  ifndef PNG_oFFs_SUPPORTED
  1.1010 +#    define PNG_oFFs_SUPPORTED
  1.1011 +#  endif
  1.1012 +#endif
  1.1013 +#ifndef PNG_NO_WRITE_pCAL
  1.1014 +#  define PNG_WRITE_pCAL_SUPPORTED
  1.1015 +#  ifndef PNG_pCAL_SUPPORTED
  1.1016 +#    define PNG_pCAL_SUPPORTED
  1.1017 +#  endif
  1.1018 +#endif
  1.1019 +#ifndef PNG_NO_WRITE_sCAL
  1.1020 +#  define PNG_WRITE_sCAL_SUPPORTED
  1.1021 +#  ifndef PNG_sCAL_SUPPORTED
  1.1022 +#    define PNG_sCAL_SUPPORTED
  1.1023 +#  endif
  1.1024 +#endif
  1.1025 +#ifndef PNG_NO_WRITE_pHYs
  1.1026 +#  define PNG_WRITE_pHYs_SUPPORTED
  1.1027 +#  ifndef PNG_pHYs_SUPPORTED
  1.1028 +#    define PNG_pHYs_SUPPORTED
  1.1029 +#  endif
  1.1030 +#endif
  1.1031 +#ifndef PNG_NO_WRITE_sBIT
  1.1032 +#  define PNG_WRITE_sBIT_SUPPORTED
  1.1033 +#  ifndef PNG_sBIT_SUPPORTED
  1.1034 +#    define PNG_sBIT_SUPPORTED
  1.1035 +#  endif
  1.1036 +#endif
  1.1037 +#ifndef PNG_NO_WRITE_sPLT
  1.1038 +#  define PNG_WRITE_sPLT_SUPPORTED
  1.1039 +#  ifndef PNG_sPLT_SUPPORTED
  1.1040 +#    define PNG_sPLT_SUPPORTED
  1.1041 +#  endif
  1.1042 +#endif
  1.1043 +#ifndef PNG_NO_WRITE_sRGB
  1.1044 +#  define PNG_WRITE_sRGB_SUPPORTED
  1.1045 +#  ifndef PNG_sRGB_SUPPORTED
  1.1046 +#    define PNG_sRGB_SUPPORTED
  1.1047 +#  endif
  1.1048 +#endif
  1.1049 +#ifndef PNG_NO_WRITE_tEXt
  1.1050 +#  define PNG_WRITE_tEXt_SUPPORTED
  1.1051 +#  ifndef PNG_tEXt_SUPPORTED
  1.1052 +#    define PNG_tEXt_SUPPORTED
  1.1053 +#  endif
  1.1054 +#endif
  1.1055 +#ifndef PNG_NO_WRITE_tIME
  1.1056 +#  define PNG_WRITE_tIME_SUPPORTED
  1.1057 +#  ifndef PNG_tIME_SUPPORTED
  1.1058 +#    define PNG_tIME_SUPPORTED
  1.1059 +#  endif
  1.1060 +#endif
  1.1061 +#ifndef PNG_NO_WRITE_tRNS
  1.1062 +#  define PNG_WRITE_tRNS_SUPPORTED
  1.1063 +#  ifndef PNG_tRNS_SUPPORTED
  1.1064 +#    define PNG_tRNS_SUPPORTED
  1.1065 +#  endif
  1.1066 +#endif
  1.1067 +#ifndef PNG_NO_WRITE_zTXt
  1.1068 +#  define PNG_WRITE_zTXt_SUPPORTED
  1.1069 +#  ifndef PNG_zTXt_SUPPORTED
  1.1070 +#    define PNG_zTXt_SUPPORTED
  1.1071 +#  endif
  1.1072 +#endif
  1.1073 +#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
  1.1074 +#  define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
  1.1075 +#  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
  1.1076 +#    define PNG_UNKNOWN_CHUNKS_SUPPORTED
  1.1077 +#  endif
  1.1078 +#  ifndef PNG_NO_HANDLE_AS_UNKNOWN
  1.1079 +#     ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
  1.1080 +#       define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
  1.1081 +#     endif
  1.1082 +#  endif
  1.1083 +#endif
  1.1084 +#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
  1.1085 +    defined(PNG_WRITE_zTXt_SUPPORTED)
  1.1086 +#  define PNG_WRITE_TEXT_SUPPORTED
  1.1087 +#  ifndef PNG_TEXT_SUPPORTED
  1.1088 +#    define PNG_TEXT_SUPPORTED
  1.1089 +#  endif
  1.1090 +#endif
  1.1091 +
  1.1092 +#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
  1.1093 +
  1.1094 +/* Turn this off to disable png_read_png() and
  1.1095 + * png_write_png() and leave the row_pointers member
  1.1096 + * out of the info structure.
  1.1097 + */
  1.1098 +#ifndef PNG_NO_INFO_IMAGE
  1.1099 +#  define PNG_INFO_IMAGE_SUPPORTED
  1.1100 +#endif
  1.1101 +
  1.1102 +/* need the time information for reading tIME chunks */
  1.1103 +#if defined(PNG_tIME_SUPPORTED)
  1.1104 +#  if !defined(_WIN32_WCE)
  1.1105 +     /* "time.h" functions are not supported on WindowsCE */
  1.1106 +#    include <time.h>
  1.1107 +#  endif
  1.1108 +#endif
  1.1109 +
  1.1110 +/* Some typedefs to get us started.  These should be safe on most of the
  1.1111 + * common platforms.  The typedefs should be at least as large as the
  1.1112 + * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
  1.1113 + * don't have to be exactly that size.  Some compilers dislike passing
  1.1114 + * unsigned shorts as function parameters, so you may be better off using
  1.1115 + * unsigned int for png_uint_16.  Likewise, for 64-bit systems, you may
  1.1116 + * want to have unsigned int for png_uint_32 instead of unsigned long.
  1.1117 + */
  1.1118 +
  1.1119 +typedef unsigned long png_uint_32;
  1.1120 +typedef long png_int_32;
  1.1121 +typedef unsigned short png_uint_16;
  1.1122 +typedef short png_int_16;
  1.1123 +typedef unsigned char png_byte;
  1.1124 +
  1.1125 +/* This is usually size_t.  It is typedef'ed just in case you need it to
  1.1126 +   change (I'm not sure if you will or not, so I thought I'd be safe) */
  1.1127 +#ifdef PNG_SIZE_T
  1.1128 +   typedef PNG_SIZE_T png_size_t;
  1.1129 +#  define png_sizeof(x) png_convert_size(sizeof(x))
  1.1130 +#else
  1.1131 +   typedef size_t png_size_t;
  1.1132 +#  define png_sizeof(x) sizeof(x)
  1.1133 +#endif
  1.1134 +
  1.1135 +/* The following is needed for medium model support.  It cannot be in the
  1.1136 + * PNG_INTERNAL section.  Needs modification for other compilers besides
  1.1137 + * MSC.  Model independent support declares all arrays and pointers to be
  1.1138 + * large using the far keyword.  The zlib version used must also support
  1.1139 + * model independent data.  As of version zlib 1.0.4, the necessary changes
  1.1140 + * have been made in zlib.  The USE_FAR_KEYWORD define triggers other
  1.1141 + * changes that are needed. (Tim Wegner)
  1.1142 + */
  1.1143 +
  1.1144 +/* Separate compiler dependencies (problem here is that zlib.h always
  1.1145 +   defines FAR. (SJT) */
  1.1146 +#ifdef __BORLANDC__
  1.1147 +#  if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
  1.1148 +#    define LDATA 1
  1.1149 +#  else
  1.1150 +#    define LDATA 0
  1.1151 +#  endif
  1.1152 +   /* GRR:  why is Cygwin in here?  Cygwin is not Borland C... */
  1.1153 +#  if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
  1.1154 +#    define PNG_MAX_MALLOC_64K
  1.1155 +#    if (LDATA != 1)
  1.1156 +#      ifndef FAR
  1.1157 +#        define FAR __far
  1.1158 +#      endif
  1.1159 +#      define USE_FAR_KEYWORD
  1.1160 +#    endif   /* LDATA != 1 */
  1.1161 +     /* Possibly useful for moving data out of default segment.
  1.1162 +      * Uncomment it if you want. Could also define FARDATA as
  1.1163 +      * const if your compiler supports it. (SJT)
  1.1164 +#    define FARDATA FAR
  1.1165 +      */
  1.1166 +#  endif  /* __WIN32__, __FLAT__, __CYGWIN__ */
  1.1167 +#endif   /* __BORLANDC__ */
  1.1168 +
  1.1169 +
  1.1170 +/* Suggest testing for specific compiler first before testing for
  1.1171 + * FAR.  The Watcom compiler defines both __MEDIUM__ and M_I86MM,
  1.1172 + * making reliance oncertain keywords suspect. (SJT)
  1.1173 + */
  1.1174 +
  1.1175 +/* MSC Medium model */
  1.1176 +#if defined(FAR)
  1.1177 +#  if defined(M_I86MM)
  1.1178 +#    define USE_FAR_KEYWORD
  1.1179 +#    define FARDATA FAR
  1.1180 +#    include <dos.h>
  1.1181 +#  endif
  1.1182 +#endif
  1.1183 +
  1.1184 +/* SJT: default case */
  1.1185 +#ifndef FAR
  1.1186 +#  define FAR
  1.1187 +#endif
  1.1188 +
  1.1189 +/* At this point FAR is always defined */
  1.1190 +#ifndef FARDATA
  1.1191 +#  define FARDATA
  1.1192 +#endif
  1.1193 +
  1.1194 +/* Typedef for floating-point numbers that are converted
  1.1195 +   to fixed-point with a multiple of 100,000, e.g., int_gamma */
  1.1196 +typedef png_int_32 png_fixed_point;
  1.1197 +
  1.1198 +/* Add typedefs for pointers */
  1.1199 +typedef void            FAR * png_voidp;
  1.1200 +typedef png_byte        FAR * png_bytep;
  1.1201 +typedef png_uint_32     FAR * png_uint_32p;
  1.1202 +typedef png_int_32      FAR * png_int_32p;
  1.1203 +typedef png_uint_16     FAR * png_uint_16p;
  1.1204 +typedef png_int_16      FAR * png_int_16p;
  1.1205 +typedef PNG_CONST char  FAR * png_const_charp;
  1.1206 +typedef char            FAR * png_charp;
  1.1207 +typedef png_fixed_point FAR * png_fixed_point_p;
  1.1208 +
  1.1209 +#ifndef PNG_NO_STDIO
  1.1210 +#if defined(_WIN32_WCE)
  1.1211 +typedef HANDLE                png_FILE_p;
  1.1212 +#else
  1.1213 +typedef FILE                * png_FILE_p;
  1.1214 +#endif
  1.1215 +#endif
  1.1216 +
  1.1217 +#ifdef PNG_FLOATING_POINT_SUPPORTED
  1.1218 +typedef double          FAR * png_doublep;
  1.1219 +#endif
  1.1220 +
  1.1221 +/* Pointers to pointers; i.e. arrays */
  1.1222 +typedef png_byte        FAR * FAR * png_bytepp;
  1.1223 +typedef png_uint_32     FAR * FAR * png_uint_32pp;
  1.1224 +typedef png_int_32      FAR * FAR * png_int_32pp;
  1.1225 +typedef png_uint_16     FAR * FAR * png_uint_16pp;
  1.1226 +typedef png_int_16      FAR * FAR * png_int_16pp;
  1.1227 +typedef PNG_CONST char  FAR * FAR * png_const_charpp;
  1.1228 +typedef char            FAR * FAR * png_charpp;
  1.1229 +typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
  1.1230 +#ifdef PNG_FLOATING_POINT_SUPPORTED
  1.1231 +typedef double          FAR * FAR * png_doublepp;
  1.1232 +#endif
  1.1233 +
  1.1234 +/* Pointers to pointers to pointers; i.e., pointer to array */
  1.1235 +typedef char            FAR * FAR * FAR * png_charppp;
  1.1236 +
  1.1237 +#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
  1.1238 +/* SPC -  Is this stuff deprecated? */
  1.1239 +/* It'll be removed as of libpng-1.3.0 - GR-P */
  1.1240 +/* libpng typedefs for types in zlib. If zlib changes
  1.1241 + * or another compression library is used, then change these.
  1.1242 + * Eliminates need to change all the source files.
  1.1243 + */
  1.1244 +typedef charf *         png_zcharp;
  1.1245 +typedef charf * FAR *   png_zcharpp;
  1.1246 +typedef z_stream FAR *  png_zstreamp;
  1.1247 +#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
  1.1248 +
  1.1249 +/*
  1.1250 + * Define PNG_BUILD_DLL if the module being built is a Windows
  1.1251 + * LIBPNG DLL.
  1.1252 + *
  1.1253 + * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
  1.1254 + * It is equivalent to Microsoft predefined macro _DLL that is
  1.1255 + * automatically defined when you compile using the share
  1.1256 + * version of the CRT (C Run-Time library)
  1.1257 + *
  1.1258 + * The cygwin mods make this behavior a little different:
  1.1259 + * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
  1.1260 + * Define PNG_STATIC if you are building a static library for use with cygwin,
  1.1261 + *   -or- if you are building an application that you want to link to the
  1.1262 + *   static library.
  1.1263 + * PNG_USE_DLL is defined by default (no user action needed) unless one of
  1.1264 + *   the other flags is defined.
  1.1265 + */
  1.1266 +
  1.1267 +#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
  1.1268 +#  define PNG_DLL
  1.1269 +#endif
  1.1270 +/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
  1.1271 + * When building a static lib, default to no GLOBAL ARRAYS, but allow
  1.1272 + * command-line override
  1.1273 + */
  1.1274 +#if defined(__CYGWIN__)
  1.1275 +#  if !defined(PNG_STATIC)
  1.1276 +#    if defined(PNG_USE_GLOBAL_ARRAYS)
  1.1277 +#      undef PNG_USE_GLOBAL_ARRAYS
  1.1278 +#    endif
  1.1279 +#    if !defined(PNG_USE_LOCAL_ARRAYS)
  1.1280 +#      define PNG_USE_LOCAL_ARRAYS
  1.1281 +#    endif
  1.1282 +#  else
  1.1283 +#    if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
  1.1284 +#      if defined(PNG_USE_GLOBAL_ARRAYS)
  1.1285 +#        undef PNG_USE_GLOBAL_ARRAYS
  1.1286 +#      endif
  1.1287 +#    endif
  1.1288 +#  endif
  1.1289 +#  if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
  1.1290 +#    define PNG_USE_LOCAL_ARRAYS
  1.1291 +#  endif
  1.1292 +#endif
  1.1293 +
  1.1294 +/* Do not use global arrays (helps with building DLL's)
  1.1295 + * They are no longer used in libpng itself, since version 1.0.5c,
  1.1296 + * but might be required for some pre-1.0.5c applications.
  1.1297 + */
  1.1298 +#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
  1.1299 +#  if defined(PNG_NO_GLOBAL_ARRAYS) || \
  1.1300 +      (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
  1.1301 +#    define PNG_USE_LOCAL_ARRAYS
  1.1302 +#  else
  1.1303 +#    define PNG_USE_GLOBAL_ARRAYS
  1.1304 +#  endif
  1.1305 +#endif
  1.1306 +
  1.1307 +#if defined(__CYGWIN__)
  1.1308 +#  undef PNGAPI
  1.1309 +#  define PNGAPI __cdecl
  1.1310 +#  undef PNG_IMPEXP
  1.1311 +#  define PNG_IMPEXP
  1.1312 +#endif  
  1.1313 +
  1.1314 +/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
  1.1315 + * you may get warnings regarding the linkage of png_zalloc and png_zfree.
  1.1316 + * Don't ignore those warnings; you must also reset the default calling
  1.1317 + * convention in your compiler to match your PNGAPI, and you must build
  1.1318 + * zlib and your applications the same way you build libpng.
  1.1319 + */
  1.1320 +
  1.1321 +#if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
  1.1322 +#  ifndef PNG_NO_MODULEDEF
  1.1323 +#    define PNG_NO_MODULEDEF
  1.1324 +#  endif
  1.1325 +#endif
  1.1326 +
  1.1327 +#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
  1.1328 +#  define PNG_IMPEXP
  1.1329 +#endif
  1.1330 +
  1.1331 +#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
  1.1332 +    (( defined(_Windows) || defined(_WINDOWS) || \
  1.1333 +       defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
  1.1334 +
  1.1335 +#  ifndef PNGAPI
  1.1336 +#     if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
  1.1337 +#        define PNGAPI __cdecl
  1.1338 +#     else
  1.1339 +#        define PNGAPI _cdecl
  1.1340 +#     endif
  1.1341 +#  endif
  1.1342 +
  1.1343 +#  if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
  1.1344 +       0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
  1.1345 +#     define PNG_IMPEXP
  1.1346 +#  endif
  1.1347 +
  1.1348 +#  if !defined(PNG_IMPEXP)
  1.1349 +
  1.1350 +#     define PNG_EXPORT_TYPE1(type,symbol)  PNG_IMPEXP type PNGAPI symbol
  1.1351 +#     define PNG_EXPORT_TYPE2(type,symbol)  type PNG_IMPEXP PNGAPI symbol
  1.1352 +
  1.1353 +      /* Borland/Microsoft */
  1.1354 +#     if defined(_MSC_VER) || defined(__BORLANDC__)
  1.1355 +#        if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
  1.1356 +#           define PNG_EXPORT PNG_EXPORT_TYPE1
  1.1357 +#        else
  1.1358 +#           define PNG_EXPORT PNG_EXPORT_TYPE2
  1.1359 +#           if defined(PNG_BUILD_DLL)
  1.1360 +#              define PNG_IMPEXP __export
  1.1361 +#           else
  1.1362 +#              define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
  1.1363 +                                                 VC++ */
  1.1364 +#           endif                             /* Exists in Borland C++ for
  1.1365 +                                                 C++ classes (== huge) */
  1.1366 +#        endif
  1.1367 +#     endif
  1.1368 +
  1.1369 +#     if !defined(PNG_IMPEXP)
  1.1370 +#        if defined(PNG_BUILD_DLL)
  1.1371 +#           define PNG_IMPEXP __declspec(dllexport)
  1.1372 +#        else
  1.1373 +#           define PNG_IMPEXP __declspec(dllimport)
  1.1374 +#        endif
  1.1375 +#     endif
  1.1376 +#  endif  /* PNG_IMPEXP */
  1.1377 +#else /* !(DLL || non-cygwin WINDOWS) */
  1.1378 +#   if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
  1.1379 +#      ifndef PNGAPI
  1.1380 +#         define PNGAPI _System
  1.1381 +#      endif
  1.1382 +#   else
  1.1383 +#      if 0 /* ... other platforms, with other meanings */
  1.1384 +#      endif
  1.1385 +#   endif
  1.1386 +#endif
  1.1387 +
  1.1388 +#ifndef PNGAPI
  1.1389 +#  define PNGAPI
  1.1390 +#endif
  1.1391 +#ifndef PNG_IMPEXP
  1.1392 +#  define PNG_IMPEXP
  1.1393 +#endif
  1.1394 +
  1.1395 +#ifdef PNG_BUILDSYMS
  1.1396 +#  ifndef PNG_EXPORT
  1.1397 +#    define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
  1.1398 +#  endif
  1.1399 +#  ifdef PNG_USE_GLOBAL_ARRAYS
  1.1400 +#    ifndef PNG_EXPORT_VAR
  1.1401 +#      define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
  1.1402 +#    endif
  1.1403 +#  endif
  1.1404 +#endif
  1.1405 +
  1.1406 +#ifndef PNG_EXPORT
  1.1407 +#  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
  1.1408 +#endif
  1.1409 +
  1.1410 +#ifdef PNG_USE_GLOBAL_ARRAYS
  1.1411 +#  ifndef PNG_EXPORT_VAR
  1.1412 +#    define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
  1.1413 +#  endif
  1.1414 +#endif
  1.1415 +
  1.1416 +/* User may want to use these so they are not in PNG_INTERNAL. Any library
  1.1417 + * functions that are passed far data must be model independent.
  1.1418 + */
  1.1419 +
  1.1420 +#ifndef PNG_ABORT
  1.1421 +#  define PNG_ABORT() abort()
  1.1422 +#endif
  1.1423 +
  1.1424 +#ifdef PNG_SETJMP_SUPPORTED
  1.1425 +#  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
  1.1426 +#else
  1.1427 +#  define png_jmpbuf(png_ptr) \
  1.1428 +   (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
  1.1429 +#endif
  1.1430 +
  1.1431 +#if defined(USE_FAR_KEYWORD)  /* memory model independent fns */
  1.1432 +/* use this to make far-to-near assignments */
  1.1433 +#  define CHECK   1
  1.1434 +#  define NOCHECK 0
  1.1435 +#  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
  1.1436 +#  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
  1.1437 +#  define png_snprintf _fsnprintf   /* Added to v 1.2.19 */
  1.1438 +#  define png_strlen  _fstrlen
  1.1439 +#  define png_memcmp  _fmemcmp    /* SJT: added */
  1.1440 +#  define png_memcpy  _fmemcpy
  1.1441 +#  define png_memset  _fmemset
  1.1442 +#else /* use the usual functions */
  1.1443 +#  define CVT_PTR(ptr)         (ptr)
  1.1444 +#  define CVT_PTR_NOCHECK(ptr) (ptr)
  1.1445 +#  ifndef PNG_NO_SNPRINTF
  1.1446 +#    ifdef _MSC_VER
  1.1447 +#      define png_snprintf _snprintf   /* Added to v 1.2.19 */
  1.1448 +#      define png_snprintf2 _snprintf
  1.1449 +#      define png_snprintf6 _snprintf
  1.1450 +#    else
  1.1451 +#      define png_snprintf snprintf   /* Added to v 1.2.19 */
  1.1452 +#      define png_snprintf2 snprintf
  1.1453 +#      define png_snprintf6 snprintf
  1.1454 +#    endif
  1.1455 +#  else
  1.1456 +     /* You don't have or don't want to use snprintf().  Caution: Using
  1.1457 +      * sprintf instead of snprintf exposes your application to accidental
  1.1458 +      * or malevolent buffer overflows.  If you don't have snprintf()
  1.1459 +      * as a general rule you should provide one (you can get one from
  1.1460 +      * Portable OpenSSH). */
  1.1461 +#    define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
  1.1462 +#    define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
  1.1463 +#    define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
  1.1464 +        sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
  1.1465 +#  endif
  1.1466 +#  define png_strlen  strlen
  1.1467 +#  define png_memcmp  memcmp      /* SJT: added */
  1.1468 +#  define png_memcpy  memcpy
  1.1469 +#  define png_memset  memset
  1.1470 +#endif
  1.1471 +/* End of memory model independent support */
  1.1472 +
  1.1473 +/* Just a little check that someone hasn't tried to define something
  1.1474 + * contradictory.
  1.1475 + */
  1.1476 +#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
  1.1477 +#  undef PNG_ZBUF_SIZE
  1.1478 +#  define PNG_ZBUF_SIZE 65536L
  1.1479 +#endif
  1.1480 +
  1.1481 +/* Added at libpng-1.2.8 */
  1.1482 +#endif /* PNG_VERSION_INFO_ONLY */
  1.1483 +
  1.1484 +#endif /* PNGCONF_H */