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update png file/directory structure

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alexey.lysiuk 2020-12-14 13:19:01 +02:00
parent b9ff366818
commit 606c338a66
13 changed files with 4245 additions and 4089 deletions
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12
deps/dumb/lib/pkgconfig/dumb.pc vendored Normal file
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prefix=
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: DUMB
Description: DUMB is a module audio renderer library.
Version: 2.0
URL: https://github.com/kode54/dumb/
Libs: -L${libdir} -ldumb
Libs.private: -lm
Cflags: -I${includedir}

1
deps/png/bin/libpng-config vendored Symbolic link
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libpng16-config

127
deps/png/bin/libpng16-config vendored Executable file
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#! /bin/sh
# libpng-config
# provides configuration info for libpng.
# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Modeled after libxml-config.
version="1.6.37"
prefix="$(cd "${0%/*}/.."; pwd)"
exec_prefix="${prefix}"
libdir="${exec_prefix}/lib"
includedir="${prefix}/include/libpng16"
libs="-lpng16"
all_libs="-lpng16 -lz "
I_opts="-I${includedir}"
L_opts="-L${libdir}"
R_opts=""
cppflags=""
ccopts=""
ldopts=""
usage()
{
cat <<EOF
Usage: $0 [OPTION] ...
Known values for OPTION are:
--prefix print libpng prefix
--libdir print path to directory containing library
--libs print library linking information
--ccopts print compiler options
--cppflags print pre-processor flags
--cflags print preprocessor flags, I_opts, and compiler options
--I_opts print "-I" include options
--L_opts print linker "-L" flags for dynamic linking
--R_opts print dynamic linker "-R" or "-rpath" flags
--ldopts print linker options
--ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
--static revise subsequent outputs for static linking
--help print this help and exit
--version print version information
EOF
exit $1
}
if test $# -eq 0; then
usage 1
fi
while test $# -gt 0; do
case "$1" in
--prefix)
echo ${prefix}
;;
--version)
echo ${version}
exit 0
;;
--help)
usage 0
;;
--ccopts)
echo ${ccopts}
;;
--cppflags)
echo ${cppflags}
;;
--cflags)
echo ${I_opts} ${cppflags} ${ccopts}
;;
--libdir)
echo ${libdir}
;;
--libs)
echo ${libs}
;;
--I_opts)
echo ${I_opts}
;;
--L_opts)
echo ${L_opts}
;;
--R_opts)
echo ${R_opts}
;;
--ldopts)
echo ${ldopts}
;;
--ldflags)
echo ${ldopts} ${L_opts} ${R_opts} ${libs}
;;
--static)
R_opts=""
libs=${all_libs}
;;
*)
usage
exit 1
;;
esac
shift
done
exit 0

3247
deps/png/include/libpng16/png.h vendored Normal file
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623
deps/png/include/libpng16/pngconf.h vendored Normal file
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/* pngconf.h - machine-configurable file for libpng
*
* libpng version 1.6.37
*
* Copyright (c) 2018-2019 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* 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
* 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.
*/
#ifndef PNGCONF_H
#define PNGCONF_H
#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */
/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C
* compiler for correct compilation. The following header files are required by
* the standard. If your compiler doesn't provide these header files, or they
* do not match the standard, you will need to provide/improve them.
*/
#include <limits.h>
#include <stddef.h>
/* Library header files. These header files are all defined by ISOC90; libpng
* expects conformant implementations, however, an ISOC90 conformant system need
* not provide these header files if the functionality cannot be implemented.
* In this case it will be necessary to disable the relevant parts of libpng in
* the build of pnglibconf.h.
*
* Prior to 1.6.0 string.h was included here; the API changes in 1.6.0 to not
* include this unnecessary header file.
*/
#ifdef PNG_STDIO_SUPPORTED
/* Required for the definition of FILE: */
# include <stdio.h>
#endif
#ifdef PNG_SETJMP_SUPPORTED
/* Required for the definition of jmp_buf and the declaration of longjmp: */
# include <setjmp.h>
#endif
#ifdef PNG_CONVERT_tIME_SUPPORTED
/* Required for struct tm: */
# include <time.h>
#endif
#endif /* PNG_BUILDING_SYMBOL_TABLE */
/* Prior to 1.6.0, it was possible to turn off 'const' in declarations,
* using PNG_NO_CONST. This is no longer supported.
*/
#define PNG_CONST const /* backward compatibility only */
/* This controls optimization of the reading of 16-bit and 32-bit
* values from PNG files. It can be set on a per-app-file basis: it
* just changes whether a macro is used when the function is called.
* The library builder sets the default; if read functions are not
* built into the library the macro implementation is forced on.
*/
#ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED
# define PNG_USE_READ_MACROS
#endif
#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS)
# if PNG_DEFAULT_READ_MACROS
# define PNG_USE_READ_MACROS
# endif
#endif
/* COMPILER SPECIFIC OPTIONS.
*
* These options are provided so that a variety of difficult compilers
* can be used. Some are fixed at build time (e.g. PNG_API_RULE
* below) but still have compiler specific implementations, others
* may be changed on a per-file basis when compiling against libpng.
*/
/* The PNGARG macro was used in versions of libpng prior to 1.6.0 to protect
* against legacy (pre ISOC90) compilers that did not understand function
* prototypes. It is not required for modern C compilers.
*/
#ifndef PNGARG
# define PNGARG(arglist) arglist
#endif
/* Function calling conventions.
* =============================
* Normally it is not necessary to specify to the compiler how to call
* a function - it just does it - however on x86 systems derived from
* Microsoft and Borland C compilers ('IBM PC', 'DOS', 'Windows' systems
* and some others) there are multiple ways to call a function and the
* default can be changed on the compiler command line. For this reason
* libpng specifies the calling convention of every exported function and
* every function called via a user supplied function pointer. This is
* done in this file by defining the following macros:
*
* PNGAPI Calling convention for exported functions.
* PNGCBAPI Calling convention for user provided (callback) functions.
* PNGCAPI Calling convention used by the ANSI-C library (required
* for longjmp callbacks and sometimes used internally to
* specify the calling convention for zlib).
*
* These macros should never be overridden. If it is necessary to
* change calling convention in a private build this can be done
* by setting PNG_API_RULE (which defaults to 0) to one of the values
* below to select the correct 'API' variants.
*
* PNG_API_RULE=0 Use PNGCAPI - the 'C' calling convention - throughout.
* This is correct in every known environment.
* PNG_API_RULE=1 Use the operating system convention for PNGAPI and
* the 'C' calling convention (from PNGCAPI) for
* callbacks (PNGCBAPI). This is no longer required
* in any known environment - if it has to be used
* please post an explanation of the problem to the
* libpng mailing list.
*
* These cases only differ if the operating system does not use the C
* calling convention, at present this just means the above cases
* (x86 DOS/Windows systems) and, even then, this does not apply to
* Cygwin running on those systems.
*
* Note that the value must be defined in pnglibconf.h so that what
* the application uses to call the library matches the conventions
* set when building the library.
*/
/* Symbol export
* =============
* When building a shared library it is almost always necessary to tell
* the compiler which symbols to export. The png.h macro 'PNG_EXPORT'
* is used to mark the symbols. On some systems these symbols can be
* extracted at link time and need no special processing by the compiler,
* on other systems the symbols are flagged by the compiler and just
* the declaration requires a special tag applied (unfortunately) in a
* compiler dependent way. Some systems can do either.
*
* A small number of older systems also require a symbol from a DLL to
* be flagged to the program that calls it. This is a problem because
* we do not know in the header file included by application code that
* the symbol will come from a shared library, as opposed to a statically
* linked one. For this reason the application must tell us by setting
* the magic flag PNG_USE_DLL to turn on the special processing before
* it includes png.h.
*
* Four additional macros are used to make this happen:
*
* PNG_IMPEXP The magic (if any) to cause a symbol to be exported from
* the build or imported if PNG_USE_DLL is set - compiler
* and system specific.
*
* PNG_EXPORT_TYPE(type) A macro that pre or appends PNG_IMPEXP to
* 'type', compiler specific.
*
* PNG_DLL_EXPORT Set to the magic to use during a libpng build to
* make a symbol exported from the DLL. Not used in the
* public header files; see pngpriv.h for how it is used
* in the libpng build.
*
* PNG_DLL_IMPORT Set to the magic to force the libpng symbols to come
* from a DLL - used to define PNG_IMPEXP when
* PNG_USE_DLL is set.
*/
/* System specific discovery.
* ==========================
* This code is used at build time to find PNG_IMPEXP, the API settings
* and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL
* import processing is possible. On Windows systems it also sets
* compiler-specific macros to the values required to change the calling
* conventions of the various functions.
*/
#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
/* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
* MinGW on any architecture currently supported by Windows. Also includes
* Watcom builds but these need special treatment because they are not
* compatible with GCC or Visual C because of different calling conventions.
*/
# if PNG_API_RULE == 2
/* If this line results in an error, either because __watcall is not
* understood or because of a redefine just below you cannot use *this*
* build of the library with the compiler you are using. *This* build was
* build using Watcom and applications must also be built using Watcom!
*/
# define PNGCAPI __watcall
# endif
# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800))
# define PNGCAPI __cdecl
# if PNG_API_RULE == 1
/* If this line results in an error __stdcall is not understood and
* PNG_API_RULE should not have been set to '1'.
*/
# define PNGAPI __stdcall
# endif
# else
/* An older compiler, or one not detected (erroneously) above,
* if necessary override on the command line to get the correct
* variants for the compiler.
*/
# ifndef PNGCAPI
# define PNGCAPI _cdecl
# endif
# if PNG_API_RULE == 1 && !defined(PNGAPI)
# define PNGAPI _stdcall
# endif
# endif /* compiler/api */
/* NOTE: PNGCBAPI always defaults to PNGCAPI. */
# if defined(PNGAPI) && !defined(PNG_USER_PRIVATEBUILD)
# error "PNG_USER_PRIVATEBUILD must be defined if PNGAPI is changed"
# endif
# if (defined(_MSC_VER) && _MSC_VER < 800) ||\
(defined(__BORLANDC__) && __BORLANDC__ < 0x500)
/* older Borland and MSC
* compilers used '__export' and required this to be after
* the type.
*/
# ifndef PNG_EXPORT_TYPE
# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP
# endif
# define PNG_DLL_EXPORT __export
# else /* newer compiler */
# define PNG_DLL_EXPORT __declspec(dllexport)
# ifndef PNG_DLL_IMPORT
# define PNG_DLL_IMPORT __declspec(dllimport)
# endif
# endif /* compiler */
#else /* !Windows */
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
# define PNGAPI _System
# else /* !Windows/x86 && !OS/2 */
/* Use the defaults, or define PNG*API on the command line (but
* this will have to be done for every compile!)
*/
# endif /* other system, !OS/2 */
#endif /* !Windows/x86 */
/* Now do all the defaulting . */
#ifndef PNGCAPI
# define PNGCAPI
#endif
#ifndef PNGCBAPI
# define PNGCBAPI PNGCAPI
#endif
#ifndef PNGAPI
# define PNGAPI PNGCAPI
#endif
/* PNG_IMPEXP may be set on the compilation system command line or (if not set)
* then in an internal header file when building the library, otherwise (when
* using the library) it is set here.
*/
#ifndef PNG_IMPEXP
# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT)
/* This forces use of a DLL, disallowing static linking */
# define PNG_IMPEXP PNG_DLL_IMPORT
# endif
# ifndef PNG_IMPEXP
# define PNG_IMPEXP
# endif
#endif
/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat
* 'attributes' as a storage class - the attributes go at the start of the
* function definition, and attributes are always appended regardless of the
* compiler. This considerably simplifies these macros but may cause problems
* if any compilers both need function attributes and fail to handle them as
* a storage class (this is unlikely.)
*/
#ifndef PNG_FUNCTION
# define PNG_FUNCTION(type, name, args, attributes) attributes type name args
#endif
#ifndef PNG_EXPORT_TYPE
# define PNG_EXPORT_TYPE(type) PNG_IMPEXP type
#endif
/* The ordinal value is only relevant when preprocessing png.h for symbol
* table entries, so we discard it here. See the .dfn files in the
* scripts directory.
*/
#ifndef PNG_EXPORTA
# define PNG_EXPORTA(ordinal, type, name, args, attributes) \
PNG_FUNCTION(PNG_EXPORT_TYPE(type), (PNGAPI name), PNGARG(args), \
PNG_LINKAGE_API attributes)
#endif
/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
* so make something non-empty to satisfy the requirement:
*/
#define PNG_EMPTY /*empty list*/
#define PNG_EXPORT(ordinal, type, name, args) \
PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
/* Use PNG_REMOVED to comment out a removed interface. */
#ifndef PNG_REMOVED
# define PNG_REMOVED(ordinal, type, name, args, attributes)
#endif
#ifndef PNG_CALLBACK
# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args)
#endif
/* Support for compiler specific function attributes. These are used
* so that where compiler support is available incorrect use of API
* functions in png.h will generate compiler warnings.
*
* Added at libpng-1.2.41.
*/
#ifndef PNG_NO_PEDANTIC_WARNINGS
# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
# define PNG_PEDANTIC_WARNINGS_SUPPORTED
# endif
#endif
#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
/* Support for compiler specific function attributes. These are used
* so that where compiler support is available, incorrect use of API
* functions in png.h will generate compiler warnings. Added at libpng
* version 1.2.41. Disabling these removes the warnings but may also produce
* less efficient code.
*/
# if defined(__clang__) && defined(__has_attribute)
/* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
# endif
# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__)
# define PNG_NORETURN __attribute__((__noreturn__))
# endif
# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__)
# define PNG_ALLOCATED __attribute__((__malloc__))
# endif
# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__)
# define PNG_DEPRECATED __attribute__((__deprecated__))
# endif
# if !defined(PNG_PRIVATE)
# ifdef __has_extension
# if __has_extension(attribute_unavailable_with_message)
# define PNG_PRIVATE __attribute__((__unavailable__(\
"This function is not exported by libpng.")))
# endif
# endif
# endif
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
# elif defined(__GNUC__)
# ifndef PNG_USE_RESULT
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
# endif
# ifndef PNG_NORETURN
# define PNG_NORETURN __attribute__((__noreturn__))
# endif
# if __GNUC__ >= 3
# ifndef PNG_ALLOCATED
# define PNG_ALLOCATED __attribute__((__malloc__))
# endif
# ifndef PNG_DEPRECATED
# define PNG_DEPRECATED __attribute__((__deprecated__))
# endif
# ifndef PNG_PRIVATE
# if 0 /* Doesn't work so we use deprecated instead*/
# define PNG_PRIVATE \
__attribute__((warning("This function is not exported by libpng.")))
# else
# define PNG_PRIVATE \
__attribute__((__deprecated__))
# endif
# endif
# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1))
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */
# endif /* __GNUC__ >= 3 */
# elif defined(_MSC_VER) && (_MSC_VER >= 1300)
# ifndef PNG_USE_RESULT
# define PNG_USE_RESULT /* not supported */
# endif
# ifndef PNG_NORETURN
# define PNG_NORETURN __declspec(noreturn)
# endif
# ifndef PNG_ALLOCATED
# if (_MSC_VER >= 1400)
# define PNG_ALLOCATED __declspec(restrict)
# endif
# endif
# ifndef PNG_DEPRECATED
# define PNG_DEPRECATED __declspec(deprecated)
# endif
# ifndef PNG_PRIVATE
# define PNG_PRIVATE __declspec(deprecated)
# endif
# ifndef PNG_RESTRICT
# if (_MSC_VER >= 1400)
# define PNG_RESTRICT __restrict
# endif
# endif
# elif defined(__WATCOMC__)
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
# endif
#endif /* PNG_PEDANTIC_WARNINGS */
#ifndef PNG_DEPRECATED
# define PNG_DEPRECATED /* Use of this function is deprecated */
#endif
#ifndef PNG_USE_RESULT
# define PNG_USE_RESULT /* The result of this function must be checked */
#endif
#ifndef PNG_NORETURN
# define PNG_NORETURN /* This function does not return */
#endif
#ifndef PNG_ALLOCATED
# define PNG_ALLOCATED /* The result of the function is new memory */
#endif
#ifndef PNG_PRIVATE
# define PNG_PRIVATE /* This is a private libpng function */
#endif
#ifndef PNG_RESTRICT
# define PNG_RESTRICT /* The C99 "restrict" feature */
#endif
#ifndef PNG_FP_EXPORT /* A floating point API. */
# ifdef PNG_FLOATING_POINT_SUPPORTED
# define PNG_FP_EXPORT(ordinal, type, name, args)\
PNG_EXPORT(ordinal, type, name, args);
# else /* No floating point APIs */
# define PNG_FP_EXPORT(ordinal, type, name, args)
# endif
#endif
#ifndef PNG_FIXED_EXPORT /* A fixed point API. */
# ifdef PNG_FIXED_POINT_SUPPORTED
# define PNG_FIXED_EXPORT(ordinal, type, name, args)\
PNG_EXPORT(ordinal, type, name, args);
# else /* No fixed point APIs */
# define PNG_FIXED_EXPORT(ordinal, type, name, args)
# endif
#endif
#ifndef PNG_BUILDING_SYMBOL_TABLE
/* Some typedefs to get us started. These should be safe on most of the common
* platforms.
*
* png_uint_32 and png_int_32 may, currently, be larger than required to hold a
* 32-bit value however this is not normally advisable.
*
* png_uint_16 and png_int_16 should always be two bytes in size - this is
* verified at library build time.
*
* png_byte must always be one byte in size.
*
* The checks below use constants from limits.h, as defined by the ISOC90
* standard.
*/
#if CHAR_BIT == 8 && UCHAR_MAX == 255
typedef unsigned char png_byte;
#else
# error "libpng requires 8-bit bytes"
#endif
#if INT_MIN == -32768 && INT_MAX == 32767
typedef int png_int_16;
#elif SHRT_MIN == -32768 && SHRT_MAX == 32767
typedef short png_int_16;
#else
# error "libpng requires a signed 16-bit type"
#endif
#if UINT_MAX == 65535
typedef unsigned int png_uint_16;
#elif USHRT_MAX == 65535
typedef unsigned short png_uint_16;
#else
# error "libpng requires an unsigned 16-bit type"
#endif
#if INT_MIN < -2147483646 && INT_MAX > 2147483646
typedef int png_int_32;
#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646
typedef long int png_int_32;
#else
# error "libpng requires a signed 32-bit (or more) type"
#endif
#if UINT_MAX > 4294967294U
typedef unsigned int png_uint_32;
#elif ULONG_MAX > 4294967294U
typedef unsigned long int png_uint_32;
#else
# error "libpng requires an unsigned 32-bit (or more) type"
#endif
/* Prior to 1.6.0, it was possible to disable the use of size_t and ptrdiff_t.
* From 1.6.0 onwards, an ISO C90 compiler, as well as a standard-compliant
* behavior of sizeof and ptrdiff_t are required.
* The legacy typedefs are provided here for backwards compatibility.
*/
typedef size_t png_size_t;
typedef ptrdiff_t png_ptrdiff_t;
/* libpng needs to know the maximum value of 'size_t' and this controls the
* definition of png_alloc_size_t, below. This maximum value of size_t limits
* but does not control the maximum allocations the library makes - there is
* direct application control of this through png_set_user_limits().
*/
#ifndef PNG_SMALL_SIZE_T
/* Compiler specific tests for systems where size_t is known to be less than
* 32 bits (some of these systems may no longer work because of the lack of
* 'far' support; see above.)
*/
# if (defined(__TURBOC__) && !defined(__FLAT__)) ||\
(defined(_MSC_VER) && defined(MAXSEG_64K))
# define PNG_SMALL_SIZE_T
# endif
#endif
/* png_alloc_size_t is guaranteed to be no smaller than size_t, and no smaller
* than png_uint_32. Casts from size_t or png_uint_32 to png_alloc_size_t are
* not necessary; in fact, it is recommended not to use them at all, so that
* the compiler can complain when something turns out to be problematic.
*
* Casts in the other direction (from png_alloc_size_t to size_t or
* png_uint_32) should be explicitly applied; however, we do not expect to
* encounter practical situations that require such conversions.
*
* PNG_SMALL_SIZE_T must be defined if the maximum value of size_t is less than
* 4294967295 - i.e. less than the maximum value of png_uint_32.
*/
#ifdef PNG_SMALL_SIZE_T
typedef png_uint_32 png_alloc_size_t;
#else
typedef size_t png_alloc_size_t;
#endif
/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler
* implementations of Intel CPU specific support of user-mode segmented address
* spaces, where 16-bit pointers address more than 65536 bytes of memory using
* separate 'segment' registers. The implementation requires two different
* types of pointer (only one of which includes the segment value.)
*
* If required this support is available in version 1.2 of libpng and may be
* available in versions through 1.5, although the correctness of the code has
* not been verified recently.
*/
/* Typedef for floating-point numbers that are converted to fixed-point with a
* multiple of 100,000, e.g., gamma
*/
typedef png_int_32 png_fixed_point;
/* Add typedefs for pointers */
typedef void * png_voidp;
typedef const void * png_const_voidp;
typedef png_byte * png_bytep;
typedef const png_byte * png_const_bytep;
typedef png_uint_32 * png_uint_32p;
typedef const png_uint_32 * png_const_uint_32p;
typedef png_int_32 * png_int_32p;
typedef const png_int_32 * png_const_int_32p;
typedef png_uint_16 * png_uint_16p;
typedef const png_uint_16 * png_const_uint_16p;
typedef png_int_16 * png_int_16p;
typedef const png_int_16 * png_const_int_16p;
typedef char * png_charp;
typedef const char * png_const_charp;
typedef png_fixed_point * png_fixed_point_p;
typedef const png_fixed_point * png_const_fixed_point_p;
typedef size_t * png_size_tp;
typedef const size_t * png_const_size_tp;
#ifdef PNG_STDIO_SUPPORTED
typedef FILE * png_FILE_p;
#endif
#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double * png_doublep;
typedef const double * png_const_doublep;
#endif
/* Pointers to pointers; i.e. arrays */
typedef png_byte * * png_bytepp;
typedef png_uint_32 * * png_uint_32pp;
typedef png_int_32 * * png_int_32pp;
typedef png_uint_16 * * png_uint_16pp;
typedef png_int_16 * * png_int_16pp;
typedef const char * * png_const_charpp;
typedef char * * png_charpp;
typedef png_fixed_point * * png_fixed_point_pp;
#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double * * png_doublepp;
#endif
/* Pointers to pointers to pointers; i.e., pointer to array */
typedef char * * * png_charppp;
#endif /* PNG_BUILDING_SYMBOL_TABLE */
#endif /* PNGCONF_H */

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/* pnglibconf.h - library build configuration */
/* libpng version 1.6.37 */
/* Copyright (c) 2018-2019 Cosmin Truta */
/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */
/* For conditions of distribution and use, see the disclaimer */
/* and license in png.h */
/* pnglibconf.h */
/* Machine generated file: DO NOT EDIT */
/* Derived from: scripts/pnglibconf.dfa */
#ifndef PNGLCONF_H
#define PNGLCONF_H
/* options */
#define PNG_16BIT_SUPPORTED
#define PNG_ALIGNED_MEMORY_SUPPORTED
/*#undef PNG_ARM_NEON_API_SUPPORTED*/
/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_BENIGN_READ_ERRORS_SUPPORTED
/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_COLORSPACE_SUPPORTED
#define PNG_CONSOLE_IO_SUPPORTED
#define PNG_CONVERT_tIME_SUPPORTED
#define PNG_EASY_ACCESS_SUPPORTED
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
#define PNG_ERROR_TEXT_SUPPORTED
#define PNG_FIXED_POINT_SUPPORTED
#define PNG_FLOATING_ARITHMETIC_SUPPORTED
#define PNG_FLOATING_POINT_SUPPORTED
#define PNG_FORMAT_AFIRST_SUPPORTED
#define PNG_FORMAT_BGR_SUPPORTED
#define PNG_GAMMA_SUPPORTED
#define PNG_GET_PALETTE_MAX_SUPPORTED
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED
#define PNG_MNG_FEATURES_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED
/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
#define PNG_PROGRESSIVE_READ_SUPPORTED
#define PNG_READ_16BIT_SUPPORTED
#define PNG_READ_ALPHA_MODE_SUPPORTED
#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_READ_BACKGROUND_SUPPORTED
#define PNG_READ_BGR_SUPPORTED
#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
#define PNG_READ_EXPAND_16_SUPPORTED
#define PNG_READ_EXPAND_SUPPORTED
#define PNG_READ_FILLER_SUPPORTED
#define PNG_READ_GAMMA_SUPPORTED
#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
#define PNG_READ_GRAY_TO_RGB_SUPPORTED
#define PNG_READ_INTERLACING_SUPPORTED
#define PNG_READ_INT_FUNCTIONS_SUPPORTED
#define PNG_READ_INVERT_ALPHA_SUPPORTED
#define PNG_READ_INVERT_SUPPORTED
#define PNG_READ_OPT_PLTE_SUPPORTED
#define PNG_READ_PACKSWAP_SUPPORTED
#define PNG_READ_PACK_SUPPORTED
#define PNG_READ_QUANTIZE_SUPPORTED
#define PNG_READ_RGB_TO_GRAY_SUPPORTED
#define PNG_READ_SCALE_16_TO_8_SUPPORTED
#define PNG_READ_SHIFT_SUPPORTED
#define PNG_READ_STRIP_16_TO_8_SUPPORTED
#define PNG_READ_STRIP_ALPHA_SUPPORTED
#define PNG_READ_SUPPORTED
#define PNG_READ_SWAP_ALPHA_SUPPORTED
#define PNG_READ_SWAP_SUPPORTED
#define PNG_READ_TEXT_SUPPORTED
#define PNG_READ_TRANSFORMS_SUPPORTED
#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_READ_USER_CHUNKS_SUPPORTED
#define PNG_READ_USER_TRANSFORM_SUPPORTED
#define PNG_READ_bKGD_SUPPORTED
#define PNG_READ_cHRM_SUPPORTED
#define PNG_READ_eXIf_SUPPORTED
#define PNG_READ_gAMA_SUPPORTED
#define PNG_READ_hIST_SUPPORTED
#define PNG_READ_iCCP_SUPPORTED
#define PNG_READ_iTXt_SUPPORTED
#define PNG_READ_oFFs_SUPPORTED
#define PNG_READ_pCAL_SUPPORTED
#define PNG_READ_pHYs_SUPPORTED
#define PNG_READ_sBIT_SUPPORTED
#define PNG_READ_sCAL_SUPPORTED
#define PNG_READ_sPLT_SUPPORTED
#define PNG_READ_sRGB_SUPPORTED
#define PNG_READ_tEXt_SUPPORTED
#define PNG_READ_tIME_SUPPORTED
#define PNG_READ_tRNS_SUPPORTED
#define PNG_READ_zTXt_SUPPORTED
#define PNG_SAVE_INT_32_SUPPORTED
#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SETJMP_SUPPORTED
#define PNG_SET_OPTION_SUPPORTED
#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SET_USER_LIMITS_SUPPORTED
#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
#define PNG_SIMPLIFIED_READ_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_SUPPORTED
#define PNG_STDIO_SUPPORTED
#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_TEXT_SUPPORTED
#define PNG_TIME_RFC1123_SUPPORTED
#define PNG_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_USER_CHUNKS_SUPPORTED
#define PNG_USER_LIMITS_SUPPORTED
#define PNG_USER_MEM_SUPPORTED
#define PNG_USER_TRANSFORM_INFO_SUPPORTED
#define PNG_USER_TRANSFORM_PTR_SUPPORTED
#define PNG_WARNINGS_SUPPORTED
#define PNG_WRITE_16BIT_SUPPORTED
#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_WRITE_BGR_SUPPORTED
#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
#define PNG_WRITE_FILLER_SUPPORTED
#define PNG_WRITE_FILTER_SUPPORTED
#define PNG_WRITE_FLUSH_SUPPORTED
#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
#define PNG_WRITE_INTERLACING_SUPPORTED
#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
#define PNG_WRITE_INVERT_SUPPORTED
#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
#define PNG_WRITE_PACKSWAP_SUPPORTED
#define PNG_WRITE_PACK_SUPPORTED
#define PNG_WRITE_SHIFT_SUPPORTED
#define PNG_WRITE_SUPPORTED
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
#define PNG_WRITE_SWAP_SUPPORTED
#define PNG_WRITE_TEXT_SUPPORTED
#define PNG_WRITE_TRANSFORMS_SUPPORTED
#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#define PNG_WRITE_bKGD_SUPPORTED
#define PNG_WRITE_cHRM_SUPPORTED
#define PNG_WRITE_eXIf_SUPPORTED
#define PNG_WRITE_gAMA_SUPPORTED
#define PNG_WRITE_hIST_SUPPORTED
#define PNG_WRITE_iCCP_SUPPORTED
#define PNG_WRITE_iTXt_SUPPORTED
#define PNG_WRITE_oFFs_SUPPORTED
#define PNG_WRITE_pCAL_SUPPORTED
#define PNG_WRITE_pHYs_SUPPORTED
#define PNG_WRITE_sBIT_SUPPORTED
#define PNG_WRITE_sCAL_SUPPORTED
#define PNG_WRITE_sPLT_SUPPORTED
#define PNG_WRITE_sRGB_SUPPORTED
#define PNG_WRITE_tEXt_SUPPORTED
#define PNG_WRITE_tIME_SUPPORTED
#define PNG_WRITE_tRNS_SUPPORTED
#define PNG_WRITE_zTXt_SUPPORTED
#define PNG_bKGD_SUPPORTED
#define PNG_cHRM_SUPPORTED
#define PNG_eXIf_SUPPORTED
#define PNG_gAMA_SUPPORTED
#define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED
#define PNG_iTXt_SUPPORTED
#define PNG_oFFs_SUPPORTED
#define PNG_pCAL_SUPPORTED
#define PNG_pHYs_SUPPORTED
#define PNG_sBIT_SUPPORTED
#define PNG_sCAL_SUPPORTED
#define PNG_sPLT_SUPPORTED
#define PNG_sRGB_SUPPORTED
#define PNG_tEXt_SUPPORTED
#define PNG_tIME_SUPPORTED
#define PNG_tRNS_SUPPORTED
#define PNG_zTXt_SUPPORTED
/* end of options */
/* settings */
#define PNG_API_RULE 0
#define PNG_DEFAULT_READ_MACROS 1
#define PNG_GAMMA_THRESHOLD_FIXED 5000
#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
#define PNG_INFLATE_BUF_SIZE 1024
#define PNG_LINKAGE_API extern
#define PNG_LINKAGE_CALLBACK extern
#define PNG_LINKAGE_DATA extern
#define PNG_LINKAGE_FUNCTION extern
#define PNG_MAX_GAMMA_8 11
#define PNG_QUANTIZE_BLUE_BITS 5
#define PNG_QUANTIZE_GREEN_BITS 5
#define PNG_QUANTIZE_RED_BITS 5
#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
#define PNG_USER_CHUNK_CACHE_MAX 1000
#define PNG_USER_CHUNK_MALLOC_MAX 8000000
#define PNG_USER_HEIGHT_MAX 1000000
#define PNG_USER_WIDTH_MAX 1000000
#define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_VERNUM 0x12b0
#define PNG_Z_DEFAULT_COMPRESSION (-1)
#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
#define PNG_Z_DEFAULT_STRATEGY 1
#define PNG_sCAL_PRECISION 5
#define PNG_sRGB_PROFILE_CHECKS 2
/* end of settings */
#endif /* PNGLCONF_H */

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libpng16/png.h

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/* pngconf.h - machine-configurable file for libpng
*
* libpng version 1.6.37
*
* Copyright (c) 2018-2019 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* 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
* 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.
*/
#ifndef PNGCONF_H
#define PNGCONF_H
#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */
/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C
* compiler for correct compilation. The following header files are required by
* the standard. If your compiler doesn't provide these header files, or they
* do not match the standard, you will need to provide/improve them.
*/
#include <limits.h>
#include <stddef.h>
/* Library header files. These header files are all defined by ISOC90; libpng
* expects conformant implementations, however, an ISOC90 conformant system need
* not provide these header files if the functionality cannot be implemented.
* In this case it will be necessary to disable the relevant parts of libpng in
* the build of pnglibconf.h.
*
* Prior to 1.6.0 string.h was included here; the API changes in 1.6.0 to not
* include this unnecessary header file.
*/
#ifdef PNG_STDIO_SUPPORTED
/* Required for the definition of FILE: */
# include <stdio.h>
#endif
#ifdef PNG_SETJMP_SUPPORTED
/* Required for the definition of jmp_buf and the declaration of longjmp: */
# include <setjmp.h>
#endif
#ifdef PNG_CONVERT_tIME_SUPPORTED
/* Required for struct tm: */
# include <time.h>
#endif
#endif /* PNG_BUILDING_SYMBOL_TABLE */
/* Prior to 1.6.0, it was possible to turn off 'const' in declarations,
* using PNG_NO_CONST. This is no longer supported.
*/
#define PNG_CONST const /* backward compatibility only */
/* This controls optimization of the reading of 16-bit and 32-bit
* values from PNG files. It can be set on a per-app-file basis: it
* just changes whether a macro is used when the function is called.
* The library builder sets the default; if read functions are not
* built into the library the macro implementation is forced on.
*/
#ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED
# define PNG_USE_READ_MACROS
#endif
#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS)
# if PNG_DEFAULT_READ_MACROS
# define PNG_USE_READ_MACROS
# endif
#endif
/* COMPILER SPECIFIC OPTIONS.
*
* These options are provided so that a variety of difficult compilers
* can be used. Some are fixed at build time (e.g. PNG_API_RULE
* below) but still have compiler specific implementations, others
* may be changed on a per-file basis when compiling against libpng.
*/
/* The PNGARG macro was used in versions of libpng prior to 1.6.0 to protect
* against legacy (pre ISOC90) compilers that did not understand function
* prototypes. It is not required for modern C compilers.
*/
#ifndef PNGARG
# define PNGARG(arglist) arglist
#endif
/* Function calling conventions.
* =============================
* Normally it is not necessary to specify to the compiler how to call
* a function - it just does it - however on x86 systems derived from
* Microsoft and Borland C compilers ('IBM PC', 'DOS', 'Windows' systems
* and some others) there are multiple ways to call a function and the
* default can be changed on the compiler command line. For this reason
* libpng specifies the calling convention of every exported function and
* every function called via a user supplied function pointer. This is
* done in this file by defining the following macros:
*
* PNGAPI Calling convention for exported functions.
* PNGCBAPI Calling convention for user provided (callback) functions.
* PNGCAPI Calling convention used by the ANSI-C library (required
* for longjmp callbacks and sometimes used internally to
* specify the calling convention for zlib).
*
* These macros should never be overridden. If it is necessary to
* change calling convention in a private build this can be done
* by setting PNG_API_RULE (which defaults to 0) to one of the values
* below to select the correct 'API' variants.
*
* PNG_API_RULE=0 Use PNGCAPI - the 'C' calling convention - throughout.
* This is correct in every known environment.
* PNG_API_RULE=1 Use the operating system convention for PNGAPI and
* the 'C' calling convention (from PNGCAPI) for
* callbacks (PNGCBAPI). This is no longer required
* in any known environment - if it has to be used
* please post an explanation of the problem to the
* libpng mailing list.
*
* These cases only differ if the operating system does not use the C
* calling convention, at present this just means the above cases
* (x86 DOS/Windows systems) and, even then, this does not apply to
* Cygwin running on those systems.
*
* Note that the value must be defined in pnglibconf.h so that what
* the application uses to call the library matches the conventions
* set when building the library.
*/
/* Symbol export
* =============
* When building a shared library it is almost always necessary to tell
* the compiler which symbols to export. The png.h macro 'PNG_EXPORT'
* is used to mark the symbols. On some systems these symbols can be
* extracted at link time and need no special processing by the compiler,
* on other systems the symbols are flagged by the compiler and just
* the declaration requires a special tag applied (unfortunately) in a
* compiler dependent way. Some systems can do either.
*
* A small number of older systems also require a symbol from a DLL to
* be flagged to the program that calls it. This is a problem because
* we do not know in the header file included by application code that
* the symbol will come from a shared library, as opposed to a statically
* linked one. For this reason the application must tell us by setting
* the magic flag PNG_USE_DLL to turn on the special processing before
* it includes png.h.
*
* Four additional macros are used to make this happen:
*
* PNG_IMPEXP The magic (if any) to cause a symbol to be exported from
* the build or imported if PNG_USE_DLL is set - compiler
* and system specific.
*
* PNG_EXPORT_TYPE(type) A macro that pre or appends PNG_IMPEXP to
* 'type', compiler specific.
*
* PNG_DLL_EXPORT Set to the magic to use during a libpng build to
* make a symbol exported from the DLL. Not used in the
* public header files; see pngpriv.h for how it is used
* in the libpng build.
*
* PNG_DLL_IMPORT Set to the magic to force the libpng symbols to come
* from a DLL - used to define PNG_IMPEXP when
* PNG_USE_DLL is set.
*/
/* System specific discovery.
* ==========================
* This code is used at build time to find PNG_IMPEXP, the API settings
* and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL
* import processing is possible. On Windows systems it also sets
* compiler-specific macros to the values required to change the calling
* conventions of the various functions.
*/
#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
/* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
* MinGW on any architecture currently supported by Windows. Also includes
* Watcom builds but these need special treatment because they are not
* compatible with GCC or Visual C because of different calling conventions.
*/
# if PNG_API_RULE == 2
/* If this line results in an error, either because __watcall is not
* understood or because of a redefine just below you cannot use *this*
* build of the library with the compiler you are using. *This* build was
* build using Watcom and applications must also be built using Watcom!
*/
# define PNGCAPI __watcall
# endif
# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800))
# define PNGCAPI __cdecl
# if PNG_API_RULE == 1
/* If this line results in an error __stdcall is not understood and
* PNG_API_RULE should not have been set to '1'.
*/
# define PNGAPI __stdcall
# endif
# else
/* An older compiler, or one not detected (erroneously) above,
* if necessary override on the command line to get the correct
* variants for the compiler.
*/
# ifndef PNGCAPI
# define PNGCAPI _cdecl
# endif
# if PNG_API_RULE == 1 && !defined(PNGAPI)
# define PNGAPI _stdcall
# endif
# endif /* compiler/api */
/* NOTE: PNGCBAPI always defaults to PNGCAPI. */
# if defined(PNGAPI) && !defined(PNG_USER_PRIVATEBUILD)
# error "PNG_USER_PRIVATEBUILD must be defined if PNGAPI is changed"
# endif
# if (defined(_MSC_VER) && _MSC_VER < 800) ||\
(defined(__BORLANDC__) && __BORLANDC__ < 0x500)
/* older Borland and MSC
* compilers used '__export' and required this to be after
* the type.
*/
# ifndef PNG_EXPORT_TYPE
# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP
# endif
# define PNG_DLL_EXPORT __export
# else /* newer compiler */
# define PNG_DLL_EXPORT __declspec(dllexport)
# ifndef PNG_DLL_IMPORT
# define PNG_DLL_IMPORT __declspec(dllimport)
# endif
# endif /* compiler */
#else /* !Windows */
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
# define PNGAPI _System
# else /* !Windows/x86 && !OS/2 */
/* Use the defaults, or define PNG*API on the command line (but
* this will have to be done for every compile!)
*/
# endif /* other system, !OS/2 */
#endif /* !Windows/x86 */
/* Now do all the defaulting . */
#ifndef PNGCAPI
# define PNGCAPI
#endif
#ifndef PNGCBAPI
# define PNGCBAPI PNGCAPI
#endif
#ifndef PNGAPI
# define PNGAPI PNGCAPI
#endif
/* PNG_IMPEXP may be set on the compilation system command line or (if not set)
* then in an internal header file when building the library, otherwise (when
* using the library) it is set here.
*/
#ifndef PNG_IMPEXP
# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT)
/* This forces use of a DLL, disallowing static linking */
# define PNG_IMPEXP PNG_DLL_IMPORT
# endif
# ifndef PNG_IMPEXP
# define PNG_IMPEXP
# endif
#endif
/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat
* 'attributes' as a storage class - the attributes go at the start of the
* function definition, and attributes are always appended regardless of the
* compiler. This considerably simplifies these macros but may cause problems
* if any compilers both need function attributes and fail to handle them as
* a storage class (this is unlikely.)
*/
#ifndef PNG_FUNCTION
# define PNG_FUNCTION(type, name, args, attributes) attributes type name args
#endif
#ifndef PNG_EXPORT_TYPE
# define PNG_EXPORT_TYPE(type) PNG_IMPEXP type
#endif
/* The ordinal value is only relevant when preprocessing png.h for symbol
* table entries, so we discard it here. See the .dfn files in the
* scripts directory.
*/
#ifndef PNG_EXPORTA
# define PNG_EXPORTA(ordinal, type, name, args, attributes) \
PNG_FUNCTION(PNG_EXPORT_TYPE(type), (PNGAPI name), PNGARG(args), \
PNG_LINKAGE_API attributes)
#endif
/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
* so make something non-empty to satisfy the requirement:
*/
#define PNG_EMPTY /*empty list*/
#define PNG_EXPORT(ordinal, type, name, args) \
PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
/* Use PNG_REMOVED to comment out a removed interface. */
#ifndef PNG_REMOVED
# define PNG_REMOVED(ordinal, type, name, args, attributes)
#endif
#ifndef PNG_CALLBACK
# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args)
#endif
/* Support for compiler specific function attributes. These are used
* so that where compiler support is available incorrect use of API
* functions in png.h will generate compiler warnings.
*
* Added at libpng-1.2.41.
*/
#ifndef PNG_NO_PEDANTIC_WARNINGS
# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
# define PNG_PEDANTIC_WARNINGS_SUPPORTED
# endif
#endif
#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
/* Support for compiler specific function attributes. These are used
* so that where compiler support is available, incorrect use of API
* functions in png.h will generate compiler warnings. Added at libpng
* version 1.2.41. Disabling these removes the warnings but may also produce
* less efficient code.
*/
# if defined(__clang__) && defined(__has_attribute)
/* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
# endif
# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__)
# define PNG_NORETURN __attribute__((__noreturn__))
# endif
# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__)
# define PNG_ALLOCATED __attribute__((__malloc__))
# endif
# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__)
# define PNG_DEPRECATED __attribute__((__deprecated__))
# endif
# if !defined(PNG_PRIVATE)
# ifdef __has_extension
# if __has_extension(attribute_unavailable_with_message)
# define PNG_PRIVATE __attribute__((__unavailable__(\
"This function is not exported by libpng.")))
# endif
# endif
# endif
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
# elif defined(__GNUC__)
# ifndef PNG_USE_RESULT
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
# endif
# ifndef PNG_NORETURN
# define PNG_NORETURN __attribute__((__noreturn__))
# endif
# if __GNUC__ >= 3
# ifndef PNG_ALLOCATED
# define PNG_ALLOCATED __attribute__((__malloc__))
# endif
# ifndef PNG_DEPRECATED
# define PNG_DEPRECATED __attribute__((__deprecated__))
# endif
# ifndef PNG_PRIVATE
# if 0 /* Doesn't work so we use deprecated instead*/
# define PNG_PRIVATE \
__attribute__((warning("This function is not exported by libpng.")))
# else
# define PNG_PRIVATE \
__attribute__((__deprecated__))
# endif
# endif
# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1))
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */
# endif /* __GNUC__ >= 3 */
# elif defined(_MSC_VER) && (_MSC_VER >= 1300)
# ifndef PNG_USE_RESULT
# define PNG_USE_RESULT /* not supported */
# endif
# ifndef PNG_NORETURN
# define PNG_NORETURN __declspec(noreturn)
# endif
# ifndef PNG_ALLOCATED
# if (_MSC_VER >= 1400)
# define PNG_ALLOCATED __declspec(restrict)
# endif
# endif
# ifndef PNG_DEPRECATED
# define PNG_DEPRECATED __declspec(deprecated)
# endif
# ifndef PNG_PRIVATE
# define PNG_PRIVATE __declspec(deprecated)
# endif
# ifndef PNG_RESTRICT
# if (_MSC_VER >= 1400)
# define PNG_RESTRICT __restrict
# endif
# endif
# elif defined(__WATCOMC__)
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
# endif
#endif /* PNG_PEDANTIC_WARNINGS */
#ifndef PNG_DEPRECATED
# define PNG_DEPRECATED /* Use of this function is deprecated */
#endif
#ifndef PNG_USE_RESULT
# define PNG_USE_RESULT /* The result of this function must be checked */
#endif
#ifndef PNG_NORETURN
# define PNG_NORETURN /* This function does not return */
#endif
#ifndef PNG_ALLOCATED
# define PNG_ALLOCATED /* The result of the function is new memory */
#endif
#ifndef PNG_PRIVATE
# define PNG_PRIVATE /* This is a private libpng function */
#endif
#ifndef PNG_RESTRICT
# define PNG_RESTRICT /* The C99 "restrict" feature */
#endif
#ifndef PNG_FP_EXPORT /* A floating point API. */
# ifdef PNG_FLOATING_POINT_SUPPORTED
# define PNG_FP_EXPORT(ordinal, type, name, args)\
PNG_EXPORT(ordinal, type, name, args);
# else /* No floating point APIs */
# define PNG_FP_EXPORT(ordinal, type, name, args)
# endif
#endif
#ifndef PNG_FIXED_EXPORT /* A fixed point API. */
# ifdef PNG_FIXED_POINT_SUPPORTED
# define PNG_FIXED_EXPORT(ordinal, type, name, args)\
PNG_EXPORT(ordinal, type, name, args);
# else /* No fixed point APIs */
# define PNG_FIXED_EXPORT(ordinal, type, name, args)
# endif
#endif
#ifndef PNG_BUILDING_SYMBOL_TABLE
/* Some typedefs to get us started. These should be safe on most of the common
* platforms.
*
* png_uint_32 and png_int_32 may, currently, be larger than required to hold a
* 32-bit value however this is not normally advisable.
*
* png_uint_16 and png_int_16 should always be two bytes in size - this is
* verified at library build time.
*
* png_byte must always be one byte in size.
*
* The checks below use constants from limits.h, as defined by the ISOC90
* standard.
*/
#if CHAR_BIT == 8 && UCHAR_MAX == 255
typedef unsigned char png_byte;
#else
# error "libpng requires 8-bit bytes"
#endif
#if INT_MIN == -32768 && INT_MAX == 32767
typedef int png_int_16;
#elif SHRT_MIN == -32768 && SHRT_MAX == 32767
typedef short png_int_16;
#else
# error "libpng requires a signed 16-bit type"
#endif
#if UINT_MAX == 65535
typedef unsigned int png_uint_16;
#elif USHRT_MAX == 65535
typedef unsigned short png_uint_16;
#else
# error "libpng requires an unsigned 16-bit type"
#endif
#if INT_MIN < -2147483646 && INT_MAX > 2147483646
typedef int png_int_32;
#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646
typedef long int png_int_32;
#else
# error "libpng requires a signed 32-bit (or more) type"
#endif
#if UINT_MAX > 4294967294U
typedef unsigned int png_uint_32;
#elif ULONG_MAX > 4294967294U
typedef unsigned long int png_uint_32;
#else
# error "libpng requires an unsigned 32-bit (or more) type"
#endif
/* Prior to 1.6.0, it was possible to disable the use of size_t and ptrdiff_t.
* From 1.6.0 onwards, an ISO C90 compiler, as well as a standard-compliant
* behavior of sizeof and ptrdiff_t are required.
* The legacy typedefs are provided here for backwards compatibility.
*/
typedef size_t png_size_t;
typedef ptrdiff_t png_ptrdiff_t;
/* libpng needs to know the maximum value of 'size_t' and this controls the
* definition of png_alloc_size_t, below. This maximum value of size_t limits
* but does not control the maximum allocations the library makes - there is
* direct application control of this through png_set_user_limits().
*/
#ifndef PNG_SMALL_SIZE_T
/* Compiler specific tests for systems where size_t is known to be less than
* 32 bits (some of these systems may no longer work because of the lack of
* 'far' support; see above.)
*/
# if (defined(__TURBOC__) && !defined(__FLAT__)) ||\
(defined(_MSC_VER) && defined(MAXSEG_64K))
# define PNG_SMALL_SIZE_T
# endif
#endif
/* png_alloc_size_t is guaranteed to be no smaller than size_t, and no smaller
* than png_uint_32. Casts from size_t or png_uint_32 to png_alloc_size_t are
* not necessary; in fact, it is recommended not to use them at all, so that
* the compiler can complain when something turns out to be problematic.
*
* Casts in the other direction (from png_alloc_size_t to size_t or
* png_uint_32) should be explicitly applied; however, we do not expect to
* encounter practical situations that require such conversions.
*
* PNG_SMALL_SIZE_T must be defined if the maximum value of size_t is less than
* 4294967295 - i.e. less than the maximum value of png_uint_32.
*/
#ifdef PNG_SMALL_SIZE_T
typedef png_uint_32 png_alloc_size_t;
#else
typedef size_t png_alloc_size_t;
#endif
/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler
* implementations of Intel CPU specific support of user-mode segmented address
* spaces, where 16-bit pointers address more than 65536 bytes of memory using
* separate 'segment' registers. The implementation requires two different
* types of pointer (only one of which includes the segment value.)
*
* If required this support is available in version 1.2 of libpng and may be
* available in versions through 1.5, although the correctness of the code has
* not been verified recently.
*/
/* Typedef for floating-point numbers that are converted to fixed-point with a
* multiple of 100,000, e.g., gamma
*/
typedef png_int_32 png_fixed_point;
/* Add typedefs for pointers */
typedef void * png_voidp;
typedef const void * png_const_voidp;
typedef png_byte * png_bytep;
typedef const png_byte * png_const_bytep;
typedef png_uint_32 * png_uint_32p;
typedef const png_uint_32 * png_const_uint_32p;
typedef png_int_32 * png_int_32p;
typedef const png_int_32 * png_const_int_32p;
typedef png_uint_16 * png_uint_16p;
typedef const png_uint_16 * png_const_uint_16p;
typedef png_int_16 * png_int_16p;
typedef const png_int_16 * png_const_int_16p;
typedef char * png_charp;
typedef const char * png_const_charp;
typedef png_fixed_point * png_fixed_point_p;
typedef const png_fixed_point * png_const_fixed_point_p;
typedef size_t * png_size_tp;
typedef const size_t * png_const_size_tp;
#ifdef PNG_STDIO_SUPPORTED
typedef FILE * png_FILE_p;
#endif
#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double * png_doublep;
typedef const double * png_const_doublep;
#endif
/* Pointers to pointers; i.e. arrays */
typedef png_byte * * png_bytepp;
typedef png_uint_32 * * png_uint_32pp;
typedef png_int_32 * * png_int_32pp;
typedef png_uint_16 * * png_uint_16pp;
typedef png_int_16 * * png_int_16pp;
typedef const char * * png_const_charpp;
typedef char * * png_charpp;
typedef png_fixed_point * * png_fixed_point_pp;
#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double * * png_doublepp;
#endif
/* Pointers to pointers to pointers; i.e., pointer to array */
typedef char * * * png_charppp;
#endif /* PNG_BUILDING_SYMBOL_TABLE */
#endif /* PNGCONF_H */

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/* pnglibconf.h - library build configuration */
/* libpng version 1.6.37 */
/* Copyright (c) 2018-2019 Cosmin Truta */
/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */
/* For conditions of distribution and use, see the disclaimer */
/* and license in png.h */
/* pnglibconf.h */
/* Machine generated file: DO NOT EDIT */
/* Derived from: scripts/pnglibconf.dfa */
#ifndef PNGLCONF_H
#define PNGLCONF_H
/* options */
#define PNG_16BIT_SUPPORTED
#define PNG_ALIGNED_MEMORY_SUPPORTED
/*#undef PNG_ARM_NEON_API_SUPPORTED*/
/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_BENIGN_READ_ERRORS_SUPPORTED
/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/
#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_COLORSPACE_SUPPORTED
#define PNG_CONSOLE_IO_SUPPORTED
#define PNG_CONVERT_tIME_SUPPORTED
#define PNG_EASY_ACCESS_SUPPORTED
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
#define PNG_ERROR_TEXT_SUPPORTED
#define PNG_FIXED_POINT_SUPPORTED
#define PNG_FLOATING_ARITHMETIC_SUPPORTED
#define PNG_FLOATING_POINT_SUPPORTED
#define PNG_FORMAT_AFIRST_SUPPORTED
#define PNG_FORMAT_BGR_SUPPORTED
#define PNG_GAMMA_SUPPORTED
#define PNG_GET_PALETTE_MAX_SUPPORTED
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED
#define PNG_MNG_FEATURES_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED
/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
#define PNG_PROGRESSIVE_READ_SUPPORTED
#define PNG_READ_16BIT_SUPPORTED
#define PNG_READ_ALPHA_MODE_SUPPORTED
#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_READ_BACKGROUND_SUPPORTED
#define PNG_READ_BGR_SUPPORTED
#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
#define PNG_READ_EXPAND_16_SUPPORTED
#define PNG_READ_EXPAND_SUPPORTED
#define PNG_READ_FILLER_SUPPORTED
#define PNG_READ_GAMMA_SUPPORTED
#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
#define PNG_READ_GRAY_TO_RGB_SUPPORTED
#define PNG_READ_INTERLACING_SUPPORTED
#define PNG_READ_INT_FUNCTIONS_SUPPORTED
#define PNG_READ_INVERT_ALPHA_SUPPORTED
#define PNG_READ_INVERT_SUPPORTED
#define PNG_READ_OPT_PLTE_SUPPORTED
#define PNG_READ_PACKSWAP_SUPPORTED
#define PNG_READ_PACK_SUPPORTED
#define PNG_READ_QUANTIZE_SUPPORTED
#define PNG_READ_RGB_TO_GRAY_SUPPORTED
#define PNG_READ_SCALE_16_TO_8_SUPPORTED
#define PNG_READ_SHIFT_SUPPORTED
#define PNG_READ_STRIP_16_TO_8_SUPPORTED
#define PNG_READ_STRIP_ALPHA_SUPPORTED
#define PNG_READ_SUPPORTED
#define PNG_READ_SWAP_ALPHA_SUPPORTED
#define PNG_READ_SWAP_SUPPORTED
#define PNG_READ_TEXT_SUPPORTED
#define PNG_READ_TRANSFORMS_SUPPORTED
#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_READ_USER_CHUNKS_SUPPORTED
#define PNG_READ_USER_TRANSFORM_SUPPORTED
#define PNG_READ_bKGD_SUPPORTED
#define PNG_READ_cHRM_SUPPORTED
#define PNG_READ_eXIf_SUPPORTED
#define PNG_READ_gAMA_SUPPORTED
#define PNG_READ_hIST_SUPPORTED
#define PNG_READ_iCCP_SUPPORTED
#define PNG_READ_iTXt_SUPPORTED
#define PNG_READ_oFFs_SUPPORTED
#define PNG_READ_pCAL_SUPPORTED
#define PNG_READ_pHYs_SUPPORTED
#define PNG_READ_sBIT_SUPPORTED
#define PNG_READ_sCAL_SUPPORTED
#define PNG_READ_sPLT_SUPPORTED
#define PNG_READ_sRGB_SUPPORTED
#define PNG_READ_tEXt_SUPPORTED
#define PNG_READ_tIME_SUPPORTED
#define PNG_READ_tRNS_SUPPORTED
#define PNG_READ_zTXt_SUPPORTED
#define PNG_SAVE_INT_32_SUPPORTED
#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SETJMP_SUPPORTED
#define PNG_SET_OPTION_SUPPORTED
#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SET_USER_LIMITS_SUPPORTED
#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
#define PNG_SIMPLIFIED_READ_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_SUPPORTED
#define PNG_STDIO_SUPPORTED
#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_TEXT_SUPPORTED
#define PNG_TIME_RFC1123_SUPPORTED
#define PNG_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_USER_CHUNKS_SUPPORTED
#define PNG_USER_LIMITS_SUPPORTED
#define PNG_USER_MEM_SUPPORTED
#define PNG_USER_TRANSFORM_INFO_SUPPORTED
#define PNG_USER_TRANSFORM_PTR_SUPPORTED
#define PNG_WARNINGS_SUPPORTED
#define PNG_WRITE_16BIT_SUPPORTED
#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_WRITE_BGR_SUPPORTED
#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
#define PNG_WRITE_FILLER_SUPPORTED
#define PNG_WRITE_FILTER_SUPPORTED
#define PNG_WRITE_FLUSH_SUPPORTED
#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
#define PNG_WRITE_INTERLACING_SUPPORTED
#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
#define PNG_WRITE_INVERT_SUPPORTED
#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
#define PNG_WRITE_PACKSWAP_SUPPORTED
#define PNG_WRITE_PACK_SUPPORTED
#define PNG_WRITE_SHIFT_SUPPORTED
#define PNG_WRITE_SUPPORTED
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
#define PNG_WRITE_SWAP_SUPPORTED
#define PNG_WRITE_TEXT_SUPPORTED
#define PNG_WRITE_TRANSFORMS_SUPPORTED
#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#define PNG_WRITE_bKGD_SUPPORTED
#define PNG_WRITE_cHRM_SUPPORTED
#define PNG_WRITE_eXIf_SUPPORTED
#define PNG_WRITE_gAMA_SUPPORTED
#define PNG_WRITE_hIST_SUPPORTED
#define PNG_WRITE_iCCP_SUPPORTED
#define PNG_WRITE_iTXt_SUPPORTED
#define PNG_WRITE_oFFs_SUPPORTED
#define PNG_WRITE_pCAL_SUPPORTED
#define PNG_WRITE_pHYs_SUPPORTED
#define PNG_WRITE_sBIT_SUPPORTED
#define PNG_WRITE_sCAL_SUPPORTED
#define PNG_WRITE_sPLT_SUPPORTED
#define PNG_WRITE_sRGB_SUPPORTED
#define PNG_WRITE_tEXt_SUPPORTED
#define PNG_WRITE_tIME_SUPPORTED
#define PNG_WRITE_tRNS_SUPPORTED
#define PNG_WRITE_zTXt_SUPPORTED
#define PNG_bKGD_SUPPORTED
#define PNG_cHRM_SUPPORTED
#define PNG_eXIf_SUPPORTED
#define PNG_gAMA_SUPPORTED
#define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED
#define PNG_iTXt_SUPPORTED
#define PNG_oFFs_SUPPORTED
#define PNG_pCAL_SUPPORTED
#define PNG_pHYs_SUPPORTED
#define PNG_sBIT_SUPPORTED
#define PNG_sCAL_SUPPORTED
#define PNG_sPLT_SUPPORTED
#define PNG_sRGB_SUPPORTED
#define PNG_tEXt_SUPPORTED
#define PNG_tIME_SUPPORTED
#define PNG_tRNS_SUPPORTED
#define PNG_zTXt_SUPPORTED
/* end of options */
/* settings */
#define PNG_API_RULE 0
#define PNG_DEFAULT_READ_MACROS 1
#define PNG_GAMMA_THRESHOLD_FIXED 5000
#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
#define PNG_INFLATE_BUF_SIZE 1024
#define PNG_LINKAGE_API extern
#define PNG_LINKAGE_CALLBACK extern
#define PNG_LINKAGE_DATA extern
#define PNG_LINKAGE_FUNCTION extern
#define PNG_MAX_GAMMA_8 11
#define PNG_QUANTIZE_BLUE_BITS 5
#define PNG_QUANTIZE_GREEN_BITS 5
#define PNG_QUANTIZE_RED_BITS 5
#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
#define PNG_USER_CHUNK_CACHE_MAX 1000
#define PNG_USER_CHUNK_MALLOC_MAX 8000000
#define PNG_USER_HEIGHT_MAX 1000000
#define PNG_USER_WIDTH_MAX 1000000
#define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_VERNUM 0x1250
#define PNG_Z_DEFAULT_COMPRESSION (-1)
#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0
#define PNG_Z_DEFAULT_STRATEGY 1
#define PNG_sCAL_PRECISION 5
#define PNG_sRGB_PROFILE_CHECKS 2
/* end of settings */
#endif /* PNGLCONF_H */

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prefix=
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include/libpng16
Name: libpng
Description: Loads and saves PNG files
Version: 1.6.37
Requires: zlib
Libs: -L${libdir} -lpng16
Libs.private: -lz
Cflags: -I${includedir}