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libpng/pngconf.h

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/* pngconf.h - machine configurable file for libpng
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*
* libpng version 1.2.59, September 28, 2017
*
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* Copyright (c) 1998-2015 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* Any machine specific code is near the front of this file, so if you
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* are configuring libpng for a machine, you may want to read the section
* starting here down to where it starts to typedef png_color, png_text,
* and png_info.
*/
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#ifndef PNGCONF_H
#define PNGCONF_H
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#define PNG_1_2_X
/*
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* PNG_USER_CONFIG has to be defined on the compiler command line. This
* includes the resource compiler for Windows DLL configurations.
*/
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#ifdef PNG_USER_CONFIG
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# ifndef PNG_USER_PRIVATEBUILD
# define PNG_USER_PRIVATEBUILD
# endif
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#include "pngusr.h"
#endif
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/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
#ifdef PNG_CONFIGURE_LIBPNG
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#endif
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/*
* Added at libpng-1.2.8
*
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* If you create a private DLL you need to define in "pngusr.h" the followings:
* #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
* the DLL was built>
* e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
* #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
* distinguish your DLL from those of the official release. These
* correspond to the trailing letters that come after the version
* number and must match your private DLL name>
* e.g. // private DLL "libpng13gx.dll"
* #define PNG_USER_DLLFNAME_POSTFIX "gx"
*
* The following macros are also at your disposal if you want to complete the
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* DLL VERSIONINFO structure.
* - PNG_USER_VERSIONINFO_COMMENTS
* - PNG_USER_VERSIONINFO_COMPANYNAME
* - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
*/
#ifdef __STDC__
#ifdef SPECIALBUILD
# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
#endif
#ifdef PRIVATEBUILD
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# pragma message("PRIVATEBUILD is deprecated.\
Use PNG_USER_PRIVATEBUILD instead.")
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# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
#endif
#endif /* __STDC__ */
#ifndef PNG_VERSION_INFO_ONLY
/* End of material added to libpng-1.2.8 */
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/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
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Restored at libpng-1.2.21 */
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#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
!defined(PNG_WARN_UNINITIALIZED_ROW)
# define PNG_WARN_UNINITIALIZED_ROW 1
#endif
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/* End of material added at libpng-1.2.19/1.2.21 */
/* Added at libpng-1.2.51 (ported from 1.4.6) */
#ifndef PNG_UNUSED
/* Unused formal parameter warnings are silenced using the following macro
* which is expected to have no bad effects on performance (optimizing
* compilers will probably remove it entirely). Note that if you replace
* it with something other than whitespace, you must include the terminating
* semicolon.
*/
# define PNG_UNUSED(param) (void)param;
#endif
/* End of material added to libpng-1.4.6 */
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/* This is the size of the compression buffer, and thus the size of
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* an IDAT chunk. Make this whatever size you feel is best for your
* machine. One of these will be allocated per png_struct. When this
* is full, it writes the data to the disk, and does some other
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* calculations. Making this an extremely small size will slow
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* the library down, but you may want to experiment to determine
* where it becomes significant, if you are concerned with memory
* usage. Note that zlib allocates at least 32Kb also. For readers,
* this describes the size of the buffer available to read the data in.
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* Unless this gets smaller than the size of a row (compressed),
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* it should not make much difference how big this is.
*/
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#ifndef PNG_ZBUF_SIZE
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# define PNG_ZBUF_SIZE 8192
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#endif
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/* Enable if you want a write-only libpng */
#ifndef PNG_NO_READ_SUPPORTED
# define PNG_READ_SUPPORTED
#endif
/* Enable if you want a read-only libpng */
#ifndef PNG_NO_WRITE_SUPPORTED
# define PNG_WRITE_SUPPORTED
#endif
/* Enabled in 1.2.41. */
#ifdef PNG_ALLOW_BENIGN_ERRORS
# define png_benign_error png_warning
# define png_chunk_benign_error png_chunk_warning
#else
# ifndef PNG_BENIGN_ERRORS_SUPPORTED
# define png_benign_error png_error
# define png_chunk_benign_error png_chunk_error
# endif
#endif
/* Added in libpng-1.2.41 */
#if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED)
# define PNG_WARNINGS_SUPPORTED
#endif
#if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED)
# define PNG_ERROR_TEXT_SUPPORTED
#endif
#if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED)
# define PNG_CHECK_cHRM_SUPPORTED
#endif
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/* Enabled by default in 1.2.0. You can disable this if you don't need to
* support PNGs that are embedded in MNG datastreams
*/
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#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
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# ifndef PNG_MNG_FEATURES_SUPPORTED
# define PNG_MNG_FEATURES_SUPPORTED
# endif
#endif
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#ifndef PNG_NO_FLOATING_POINT_SUPPORTED
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# ifndef PNG_FLOATING_POINT_SUPPORTED
# define PNG_FLOATING_POINT_SUPPORTED
# endif
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#endif
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/* If you are running on a machine where you cannot allocate more
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* than 64K of memory at once, uncomment this. While libpng will not
* normally need that much memory in a chunk (unless you load up a very
* large file), zlib needs to know how big of a chunk it can use, and
* libpng thus makes sure to check any memory allocation to verify it
* will fit into memory.
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#define PNG_MAX_MALLOC_64K
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*/
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#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
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# define PNG_MAX_MALLOC_64K
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#endif
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/* Special munging to support doing things the 'cygwin' way:
* 'Normal' png-on-win32 defines/defaults:
* PNG_BUILD_DLL -- building dll
* PNG_USE_DLL -- building an application, linking to dll
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* (no define) -- building static library, or building an
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* application and linking to the static lib
* 'Cygwin' defines/defaults:
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* PNG_BUILD_DLL -- (ignored) building the dll
* (no define) -- (ignored) building an application, linking to the dll
* PNG_STATIC -- (ignored) building the static lib, or building an
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* application that links to the static lib.
* ALL_STATIC -- (ignored) building various static libs, or building an
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* application that links to the static libs.
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* Thus,
* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
* this bit of #ifdefs will define the 'correct' config variables based on
* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
* unnecessary.
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*
* Also, the precedence order is:
* ALL_STATIC (since we can't #undef something outside our namespace)
* PNG_BUILD_DLL
* PNG_STATIC
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* (nothing) == PNG_USE_DLL
*
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* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
* of auto-import in binutils, we no longer need to worry about
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* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
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* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
* to __declspec() stuff. However, we DO need to worry about
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* PNG_BUILD_DLL and PNG_STATIC because those change some defaults
* such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
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*/
#ifdef __CYGWIN__
# ifdef ALL_STATIC
# ifdef PNG_BUILD_DLL
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# undef PNG_BUILD_DLL
# endif
# ifdef PNG_USE_DLL
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# undef PNG_USE_DLL
# endif
# ifdef PNG_DLL
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# undef PNG_DLL
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# endif
# ifndef PNG_STATIC
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# define PNG_STATIC
# endif
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# else
# ifdef PNG_BUILD_DLL
# ifdef PNG_STATIC
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# undef PNG_STATIC
# endif
# ifdef PNG_USE_DLL
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# undef PNG_USE_DLL
# endif
# ifndef PNG_DLL
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# define PNG_DLL
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# endif
# else
# ifdef PNG_STATIC
# ifdef PNG_USE_DLL
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# undef PNG_USE_DLL
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# endif
# ifdef PNG_DLL
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# undef PNG_DLL
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# endif
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# else
# ifndef PNG_USE_DLL
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# define PNG_USE_DLL
# endif
# ifndef PNG_DLL
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# define PNG_DLL
# endif
# endif
# endif
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# endif
#endif
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/* This protects us against compilers that run on a windowing system
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* and thus don't have or would rather us not use the stdio types:
* stdin, stdout, and stderr. The only one currently used is stderr
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* in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
* prevent these from being compiled and used. #defining PNG_NO_STDIO
* will also prevent these, plus will prevent the entire set of stdio
* macros and functions (FILE *, printf, etc.) from being compiled and used,
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* unless (PNG_DEBUG > 0) has been #defined.
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*
* #define PNG_NO_CONSOLE_IO
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* #define PNG_NO_STDIO
*/
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#if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED)
# define PNG_STDIO_SUPPORTED
#endif
#ifdef _WIN32_WCE
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# include <windows.h>
/* Console I/O functions are not supported on WindowsCE */
# define PNG_NO_CONSOLE_IO
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/* abort() may not be supported on some/all Windows CE platforms */
# define PNG_ABORT() exit(-1)
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# ifdef PNG_DEBUG
# undef PNG_DEBUG
# endif
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#endif
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#ifdef PNG_BUILD_DLL
# ifndef PNG_CONSOLE_IO_SUPPORTED
# ifndef PNG_NO_CONSOLE_IO
# define PNG_NO_CONSOLE_IO
# endif
# endif
#endif
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# ifdef PNG_NO_STDIO
# ifndef PNG_NO_CONSOLE_IO
# define PNG_NO_CONSOLE_IO
# endif
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# ifdef PNG_DEBUG
# if (PNG_DEBUG > 0)
# include <stdio.h>
# endif
# endif
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# else
# ifndef _WIN32_WCE
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/* "stdio.h" functions are not supported on WindowsCE */
# include <stdio.h>
# endif
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# endif
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#if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED)
# define PNG_CONSOLE_IO_SUPPORTED
#endif
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/* This macro protects us against machines that don't have function
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* prototypes (ie K&R style headers). If your compiler does not handle
* function prototypes, define this macro and use the included ansi2knr.
* I've always been able to use _NO_PROTO as the indicator, but you may
* need to drag the empty declaration out in front of here, or change the
* ifdef to suit your own needs.
*/
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#ifndef PNGARG
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#ifdef OF /* zlib prototype munger */
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# define PNGARG(arglist) OF(arglist)
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#else
#ifdef _NO_PROTO
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# define PNGARG(arglist) ()
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# ifndef PNG_TYPECAST_NULL
# define PNG_TYPECAST_NULL
# endif
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#else
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# define PNGARG(arglist) arglist
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#endif /* _NO_PROTO */
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#endif /* OF */
#endif /* PNGARG */
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/* Try to determine if we are compiling on a Mac. Note that testing for
* just __MWERKS__ is not good enough, because the Codewarrior is now used
* on non-Mac platforms.
*/
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#ifndef MACOS
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# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
# define MACOS
# endif
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#endif
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/* enough people need this for various reasons to include it here */
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#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
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# include <sys/types.h>
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#endif
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#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
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# define PNG_SETJMP_SUPPORTED
#endif
#ifdef PNG_SETJMP_SUPPORTED
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/* This is an attempt to force a single setjmp behaviour on Linux. If
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* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
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*
* You can bypass this test if you know that your application uses exactly
* the same setjmp.h that was included when libpng was built. Only define
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
* while building a separate libpng library for general use.
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*/
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# ifndef PNG_SKIP_SETJMP_CHECK
# ifdef __linux__
# ifdef _BSD_SOURCE
# define PNG_SAVE_BSD_SOURCE
# undef _BSD_SOURCE
# endif
# ifdef _SETJMP_H
/* If you encounter a compiler error here, see the explanation
* near the end of INSTALL.
*/
__pngconf.h__ in libpng already includes setjmp.h;
__dont__ include it again.;
# endif
# endif /* __linux__ */
# endif /* PNG_SKIP_SETJMP_CHECK */
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/* include setjmp.h for error handling */
# include <setjmp.h>
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# ifdef __linux__
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# ifdef PNG_SAVE_BSD_SOURCE
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# ifndef _BSD_SOURCE
# define _BSD_SOURCE
# endif
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# undef PNG_SAVE_BSD_SOURCE
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# endif
# endif /* __linux__ */
#endif /* PNG_SETJMP_SUPPORTED */
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#ifdef BSD
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# include <strings.h>
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#else
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# include <string.h>
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#endif
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/* Other defines for things like memory and the like can go here. */
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#ifdef PNG_INTERNAL
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#include <stdlib.h>
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/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
* aren't usually used outside the library (as far as I know), so it is
* debatable if they should be exported at all. In the future, when it is
* possible to have run-time registry of chunk-handling functions, some of
* these will be made available again.
#define PNG_EXTERN extern
*/
#define PNG_EXTERN
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/* Other defines specific to compilers can go here. Try to keep
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* them inside an appropriate ifdef/endif pair for portability.
*/
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#ifdef PNG_FLOATING_POINT_SUPPORTED
# ifdef MACOS
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/* We need to check that <math.h> hasn't already been included earlier
* as it seems it doesn't agree with <fp.h>, yet we should really use
* <fp.h> if possible.
*/
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
# include <fp.h>
# endif
# else
# include <math.h>
# endif
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
/* Amiga SAS/C: We must include builtin FPU functions when compiling using
* MATH=68881
*/
# include <m68881.h>
# endif
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#endif
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/* Codewarrior on NT has linking problems without this. */
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#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
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# define PNG_ALWAYS_EXTERN
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#endif
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/* This provides the non-ANSI (far) memory allocation routines. */
#if defined(__TURBOC__) && defined(__MSDOS__)
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# include <mem.h>
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# include <alloc.h>
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#endif
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/* I have no idea why is this necessary... */
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#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
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# include <malloc.h>
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#endif
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/* This controls how fine the dithering gets. As this allocates
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* a largish chunk of memory (32K), those who are not as concerned
* with dithering quality can decrease some or all of these.
*/
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#ifndef PNG_DITHER_RED_BITS
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# define PNG_DITHER_RED_BITS 5
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#endif
#ifndef PNG_DITHER_GREEN_BITS
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# define PNG_DITHER_GREEN_BITS 5
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#endif
#ifndef PNG_DITHER_BLUE_BITS
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# define PNG_DITHER_BLUE_BITS 5
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#endif
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/* This controls how fine the gamma correction becomes when you
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* are only interested in 8 bits anyway. Increasing this value
* results in more memory being used, and more pow() functions
* being called to fill in the gamma tables. Don't set this value
* less then 8, and even that may not work (I haven't tested it).
*/
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#ifndef PNG_MAX_GAMMA_8
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# define PNG_MAX_GAMMA_8 11
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#endif
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/* This controls how much a difference in gamma we can tolerate before
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* we actually start doing gamma conversion.
*/
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#ifndef PNG_GAMMA_THRESHOLD
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# define PNG_GAMMA_THRESHOLD 0.05
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#endif
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#endif /* PNG_INTERNAL */
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/* The following uses const char * instead of char * for error
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* and warning message functions, so some compilers won't complain.
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* If you do not want to use const, define PNG_NO_CONST here.
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*/
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#ifndef PNG_NO_CONST
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# define PNG_CONST const
#else
# define PNG_CONST
#endif
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/* The following defines give you the ability to remove code from the
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* library that you will not be using. I wish I could figure out how to
* automate this, but I can't do that without making it seriously hard
* on the users. So if you are not using an ability, change the #define
* to and #undef, and that part of the library will not be compiled. If
* your linker can't find a function, you may want to make sure the
* ability is defined here. Some of these depend upon some others being
* defined. I haven't figured out all the interactions here, so you may
* have to experiment awhile to get everything to compile. If you are
* creating or using a shared library, you probably shouldn't touch this,
* as it will affect the size of the structures, and this will cause bad
* things to happen if the library and/or application ever change.
*/
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/* Any features you will not be using can be undef'ed here */
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/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
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* to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
* on the compile line, then pick and choose which ones to define without
* having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
* if you only want to have a png-compliant reader/writer but don't need
* any of the extra transformations. This saves about 80 kbytes in a
* typical installation of the library. (PNG_NO_* form added in version
* 1.0.1c, for consistency)
*/
/* The size of the png_text structure changed in libpng-1.0.6 when
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* iTXt support was added. iTXt support was turned off by default through
* libpng-1.2.x, to support old apps that malloc the png_text structure
* instead of calling png_set_text() and letting libpng malloc it. It
* will be turned on by default in libpng-1.4.0.
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*/
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#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
# ifndef PNG_NO_iTXt_SUPPORTED
# define PNG_NO_iTXt_SUPPORTED
# endif
# ifndef PNG_NO_READ_iTXt
# define PNG_NO_READ_iTXt
# endif
# ifndef PNG_NO_WRITE_iTXt
# define PNG_NO_WRITE_iTXt
# endif
#endif
#if !defined(PNG_NO_iTXt_SUPPORTED)
# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
# define PNG_READ_iTXt
# endif
# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
# define PNG_WRITE_iTXt
# endif
#endif
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/* The following support, added after version 1.0.0, can be turned off here en
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
* with old applications that require the length of png_struct and png_info
* to remain unchanged.
*/
#ifdef PNG_LEGACY_SUPPORTED
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# define PNG_NO_FREE_ME
# define PNG_NO_READ_UNKNOWN_CHUNKS
# define PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_NO_HANDLE_AS_UNKNOWN
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# define PNG_NO_READ_USER_CHUNKS
# define PNG_NO_READ_iCCP
# define PNG_NO_WRITE_iCCP
# define PNG_NO_READ_iTXt
# define PNG_NO_WRITE_iTXt
# define PNG_NO_READ_sCAL
# define PNG_NO_WRITE_sCAL
# define PNG_NO_READ_sPLT
# define PNG_NO_WRITE_sPLT
# define PNG_NO_INFO_IMAGE
# define PNG_NO_READ_RGB_TO_GRAY
# define PNG_NO_READ_USER_TRANSFORM
# define PNG_NO_WRITE_USER_TRANSFORM
# define PNG_NO_USER_MEM
# define PNG_NO_READ_EMPTY_PLTE
# define PNG_NO_MNG_FEATURES
# define PNG_NO_FIXED_POINT_SUPPORTED
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#endif
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/* Ignore attempt to turn off both floating and fixed point support */
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#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
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!defined(PNG_NO_FIXED_POINT_SUPPORTED)
# define PNG_FIXED_POINT_SUPPORTED
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#endif
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#ifndef PNG_NO_FREE_ME
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# define PNG_FREE_ME_SUPPORTED
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#endif
#ifdef PNG_READ_SUPPORTED
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#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
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!defined(PNG_NO_READ_TRANSFORMS)
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# define PNG_READ_TRANSFORMS_SUPPORTED
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#endif
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#ifdef PNG_READ_TRANSFORMS_SUPPORTED
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# ifndef PNG_NO_READ_EXPAND
# define PNG_READ_EXPAND_SUPPORTED
# endif
# ifndef PNG_NO_READ_SHIFT
# define PNG_READ_SHIFT_SUPPORTED
# endif
# ifndef PNG_NO_READ_PACK
# define PNG_READ_PACK_SUPPORTED
# endif
# ifndef PNG_NO_READ_BGR
# define PNG_READ_BGR_SUPPORTED
# endif
# ifndef PNG_NO_READ_SWAP
# define PNG_READ_SWAP_SUPPORTED
# endif
# ifndef PNG_NO_READ_PACKSWAP
# define PNG_READ_PACKSWAP_SUPPORTED
# endif
# ifndef PNG_NO_READ_INVERT
# define PNG_READ_INVERT_SUPPORTED
# endif
# ifndef PNG_NO_READ_DITHER
# define PNG_READ_DITHER_SUPPORTED
# endif
# ifndef PNG_NO_READ_BACKGROUND
# define PNG_READ_BACKGROUND_SUPPORTED
# endif
# ifndef PNG_NO_READ_16_TO_8
# define PNG_READ_16_TO_8_SUPPORTED
# endif
# ifndef PNG_NO_READ_FILLER
# define PNG_READ_FILLER_SUPPORTED
# endif
# ifndef PNG_NO_READ_GAMMA
# define PNG_READ_GAMMA_SUPPORTED
# endif
# ifndef PNG_NO_READ_GRAY_TO_RGB
# define PNG_READ_GRAY_TO_RGB_SUPPORTED
# endif
# ifndef PNG_NO_READ_SWAP_ALPHA
# define PNG_READ_SWAP_ALPHA_SUPPORTED
# endif
# ifndef PNG_NO_READ_INVERT_ALPHA
# define PNG_READ_INVERT_ALPHA_SUPPORTED
# endif
# ifndef PNG_NO_READ_STRIP_ALPHA
# define PNG_READ_STRIP_ALPHA_SUPPORTED
# endif
# ifndef PNG_NO_READ_USER_TRANSFORM
# define PNG_READ_USER_TRANSFORM_SUPPORTED
# endif
# ifndef PNG_NO_READ_RGB_TO_GRAY
# define PNG_READ_RGB_TO_GRAY_SUPPORTED
# endif
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#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
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/* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */
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#if !defined(PNG_NO_PROGRESSIVE_READ) && \
!defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */
# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
#endif /* about interlacing capability! You'll */
/* still have interlacing unless you change the following define: */
#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
/* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */
#if !defined(PNG_NO_SEQUENTIAL_READ) && \
!defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \
!defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED)
# define PNG_SEQUENTIAL_READ_SUPPORTED
#endif
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#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
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#ifndef PNG_NO_READ_COMPOSITE_NODIV
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# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
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# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
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# endif
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#endif
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#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
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/* Deprecated, will be removed from version 2.0.0.
Use PNG_MNG_FEATURES_SUPPORTED instead. */
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#ifndef PNG_NO_READ_EMPTY_PLTE
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# define PNG_READ_EMPTY_PLTE_SUPPORTED
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#endif
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#endif
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#endif /* PNG_READ_SUPPORTED */
#ifdef PNG_WRITE_SUPPORTED
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# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
!defined(PNG_NO_WRITE_TRANSFORMS)
# define PNG_WRITE_TRANSFORMS_SUPPORTED
#endif
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#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
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