1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation. Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle in the LICENSE file that accompanied this code.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25/* pngconf.h - machine configurable file for libpng
26 *
27 * This file is available under and governed by the GNU General Public
28 * License version 2 only, as published by the Free Software Foundation.
29 * However, the following notice accompanied the original version of this
30 * file and, per its terms, should not be removed:
31 *
32 * libpng version 1.6.35, July 15, 2018
33 *
34 * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
35 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
36 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
37 *
38 * This code is released under the libpng license.
39 * For conditions of distribution and use, see the disclaimer
40 * and license in png.h
41 *
42 * Any machine specific code is near the front of this file, so if you
43 * are configuring libpng for a machine, you may want to read the section
44 * starting here down to where it starts to typedef png_color, png_text,
45 * and png_info.
46 */
47
48#ifndef PNGCONF_H
49#define PNGCONF_H
50
51#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */
52
53/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C
54 * compiler for correct compilation. The following header files are required by
55 * the standard. If your compiler doesn't provide these header files, or they
56 * do not match the standard, you will need to provide/improve them.
57 */
58#include <limits.h>
59#include <stddef.h>
60
61/* Library header files. These header files are all defined by ISOC90; libpng
62 * expects conformant implementations, however, an ISOC90 conformant system need
63 * not provide these header files if the functionality cannot be implemented.
64 * In this case it will be necessary to disable the relevant parts of libpng in
65 * the build of pnglibconf.h.
66 *
67 * Prior to 1.6.0 string.h was included here; the API changes in 1.6.0 to not
68 * include this unnecessary header file.
69 */
70
71#ifdef PNG_STDIO_SUPPORTED
72 /* Required for the definition of FILE: */
73# include <stdio.h>
74#endif
75
76#ifdef PNG_SETJMP_SUPPORTED
77 /* Required for the definition of jmp_buf and the declaration of longjmp: */
78# include <setjmp.h>
79#endif
80
81#ifdef PNG_CONVERT_tIME_SUPPORTED
82 /* Required for struct tm: */
83# include <time.h>
84#endif
85
86#endif /* PNG_BUILDING_SYMBOL_TABLE */
87
88/* Prior to 1.6.0 it was possible to turn off 'const' in declarations using
89 * PNG_NO_CONST; this is no longer supported except for data declarations which
90 * apparently still cause problems in 2011 on some compilers.
91 */
92#define PNG_CONST const /* backward compatibility only */
93
94/* This controls optimization of the reading of 16-bit and 32-bit values
95 * from PNG files. It can be set on a per-app-file basis - it
96 * just changes whether a macro is used when the function is called.
97 * The library builder sets the default; if read functions are not
98 * built into the library the macro implementation is forced on.
99 */
100#ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED
101# define PNG_USE_READ_MACROS
102#endif
103#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS)
104# if PNG_DEFAULT_READ_MACROS
105# define PNG_USE_READ_MACROS
106# endif
107#endif
108
109/* COMPILER SPECIFIC OPTIONS.
110 *
111 * These options are provided so that a variety of difficult compilers
112 * can be used. Some are fixed at build time (e.g. PNG_API_RULE
113 * below) but still have compiler specific implementations, others
114 * may be changed on a per-file basis when compiling against libpng.
115 */
116
117/* The PNGARG macro was used in versions of libpng prior to 1.6.0 to protect
118 * against legacy (pre ISOC90) compilers that did not understand function
119 * prototypes. It is not required for modern C compilers.
120 */
121#ifndef PNGARG
122# define PNGARG(arglist) arglist
123#endif
124
125/* Function calling conventions.
126 * =============================
127 * Normally it is not necessary to specify to the compiler how to call
128 * a function - it just does it - however on x86 systems derived from
129 * Microsoft and Borland C compilers ('IBM PC', 'DOS', 'Windows' systems
130 * and some others) there are multiple ways to call a function and the
131 * default can be changed on the compiler command line. For this reason
132 * libpng specifies the calling convention of every exported function and
133 * every function called via a user supplied function pointer. This is
134 * done in this file by defining the following macros:
135 *
136 * PNGAPI Calling convention for exported functions.
137 * PNGCBAPI Calling convention for user provided (callback) functions.
138 * PNGCAPI Calling convention used by the ANSI-C library (required
139 * for longjmp callbacks and sometimes used internally to
140 * specify the calling convention for zlib).
141 *
142 * These macros should never be overridden. If it is necessary to
143 * change calling convention in a private build this can be done
144 * by setting PNG_API_RULE (which defaults to 0) to one of the values
145 * below to select the correct 'API' variants.
146 *
147 * PNG_API_RULE=0 Use PNGCAPI - the 'C' calling convention - throughout.
148 * This is correct in every known environment.
149 * PNG_API_RULE=1 Use the operating system convention for PNGAPI and
150 * the 'C' calling convention (from PNGCAPI) for
151 * callbacks (PNGCBAPI). This is no longer required
152 * in any known environment - if it has to be used
153 * please post an explanation of the problem to the
154 * libpng mailing list.
155 *
156 * These cases only differ if the operating system does not use the C
157 * calling convention, at present this just means the above cases
158 * (x86 DOS/Windows systems) and, even then, this does not apply to
159 * Cygwin running on those systems.
160 *
161 * Note that the value must be defined in pnglibconf.h so that what
162 * the application uses to call the library matches the conventions
163 * set when building the library.
164 */
165
166/* Symbol export
167 * =============
168 * When building a shared library it is almost always necessary to tell
169 * the compiler which symbols to export. The png.h macro 'PNG_EXPORT'
170 * is used to mark the symbols. On some systems these symbols can be
171 * extracted at link time and need no special processing by the compiler,
172 * on other systems the symbols are flagged by the compiler and just
173 * the declaration requires a special tag applied (unfortunately) in a
174 * compiler dependent way. Some systems can do either.
175 *
176 * A small number of older systems also require a symbol from a DLL to
177 * be flagged to the program that calls it. This is a problem because
178 * we do not know in the header file included by application code that
179 * the symbol will come from a shared library, as opposed to a statically
180 * linked one. For this reason the application must tell us by setting
181 * the magic flag PNG_USE_DLL to turn on the special processing before
182 * it includes png.h.
183 *
184 * Four additional macros are used to make this happen:
185 *
186 * PNG_IMPEXP The magic (if any) to cause a symbol to be exported from
187 * the build or imported if PNG_USE_DLL is set - compiler
188 * and system specific.
189 *
190 * PNG_EXPORT_TYPE(type) A macro that pre or appends PNG_IMPEXP to
191 * 'type', compiler specific.
192 *
193 * PNG_DLL_EXPORT Set to the magic to use during a libpng build to
194 * make a symbol exported from the DLL. Not used in the
195 * public header files; see pngpriv.h for how it is used
196 * in the libpng build.
197 *
198 * PNG_DLL_IMPORT Set to the magic to force the libpng symbols to come
199 * from a DLL - used to define PNG_IMPEXP when
200 * PNG_USE_DLL is set.
201 */
202
203/* System specific discovery.
204 * ==========================
205 * This code is used at build time to find PNG_IMPEXP, the API settings
206 * and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL
207 * import processing is possible. On Windows systems it also sets
208 * compiler-specific macros to the values required to change the calling
209 * conventions of the various functions.
210 */
211#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
212 defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
213 /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
214 * MinGW on any architecture currently supported by Windows. Also includes
215 * Watcom builds but these need special treatment because they are not
216 * compatible with GCC or Visual C because of different calling conventions.
217 */
218# if PNG_API_RULE == 2
219 /* If this line results in an error, either because __watcall is not
220 * understood or because of a redefine just below you cannot use *this*
221 * build of the library with the compiler you are using. *This* build was
222 * build using Watcom and applications must also be built using Watcom!
223 */
224# define PNGCAPI __watcall
225# endif
226
227# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800))
228# define PNGCAPI __cdecl
229# if PNG_API_RULE == 1
230 /* If this line results in an error __stdcall is not understood and
231 * PNG_API_RULE should not have been set to '1'.
232 */
233# define PNGAPI __stdcall
234# endif
235# else
236 /* An older compiler, or one not detected (erroneously) above,
237 * if necessary override on the command line to get the correct
238 * variants for the compiler.
239 */
240# ifndef PNGCAPI
241# define PNGCAPI _cdecl
242# endif
243# if PNG_API_RULE == 1 && !defined(PNGAPI)
244# define PNGAPI _stdcall
245# endif
246# endif /* compiler/api */
247
248 /* NOTE: PNGCBAPI always defaults to PNGCAPI. */
249
250# if defined(PNGAPI) && !defined(PNG_USER_PRIVATEBUILD)
251# error "PNG_USER_PRIVATEBUILD must be defined if PNGAPI is changed"
252# endif
253
254# if (defined(_MSC_VER) && _MSC_VER < 800) ||\
255 (defined(__BORLANDC__) && __BORLANDC__ < 0x500)
256 /* older Borland and MSC
257 * compilers used '__export' and required this to be after
258 * the type.
259 */
260# ifndef PNG_EXPORT_TYPE
261# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP
262# endif
263# define PNG_DLL_EXPORT __export
264# else /* newer compiler */
265# define PNG_DLL_EXPORT __declspec(dllexport)
266# ifndef PNG_DLL_IMPORT
267# define PNG_DLL_IMPORT __declspec(dllimport)
268# endif
269# endif /* compiler */
270
271#else /* !Windows */
272# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
273# define PNGAPI _System
274# else /* !Windows/x86 && !OS/2 */
275 /* Use the defaults, or define PNG*API on the command line (but
276 * this will have to be done for every compile!)
277 */
278# endif /* other system, !OS/2 */
279#endif /* !Windows/x86 */
280
281/* Now do all the defaulting . */
282#ifndef PNGCAPI
283# define PNGCAPI
284#endif
285#ifndef PNGCBAPI
286# define PNGCBAPI PNGCAPI
287#endif
288#ifndef PNGAPI
289# define PNGAPI PNGCAPI
290#endif
291
292/* PNG_IMPEXP may be set on the compilation system command line or (if not set)
293 * then in an internal header file when building the library, otherwise (when
294 * using the library) it is set here.
295 */
296#ifndef PNG_IMPEXP
297# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT)
298 /* This forces use of a DLL, disallowing static linking */
299# define PNG_IMPEXP PNG_DLL_IMPORT
300# endif
301
302# ifndef PNG_IMPEXP
303# define PNG_IMPEXP
304# endif
305#endif
306
307/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat
308 * 'attributes' as a storage class - the attributes go at the start of the
309 * function definition, and attributes are always appended regardless of the
310 * compiler. This considerably simplifies these macros but may cause problems
311 * if any compilers both need function attributes and fail to handle them as
312 * a storage class (this is unlikely.)
313 */
314#ifndef PNG_FUNCTION
315# define PNG_FUNCTION(type, name, args, attributes) attributes type name args
316#endif
317
318#ifndef PNG_EXPORT_TYPE
319# define PNG_EXPORT_TYPE(type) PNG_IMPEXP type
320#endif
321
322 /* The ordinal value is only relevant when preprocessing png.h for symbol
323 * table entries, so we discard it here. See the .dfn files in the
324 * scripts directory.
325 */
326
327#ifndef PNG_EXPORTA
328# define PNG_EXPORTA(ordinal, type, name, args, attributes) \
329 PNG_FUNCTION(PNG_EXPORT_TYPE(type), (PNGAPI name), PNGARG(args), \
330 PNG_LINKAGE_API attributes)
331#endif
332
333/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
334 * so make something non-empty to satisfy the requirement:
335 */
336#define PNG_EMPTY /*empty list*/
337
338#define PNG_EXPORT(ordinal, type, name, args) \
339 PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
340
341/* Use PNG_REMOVED to comment out a removed interface. */
342#ifndef PNG_REMOVED
343# define PNG_REMOVED(ordinal, type, name, args, attributes)
344#endif
345
346#ifndef PNG_CALLBACK
347# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args)
348#endif
349
350/* Support for compiler specific function attributes. These are used
351 * so that where compiler support is available incorrect use of API
352 * functions in png.h will generate compiler warnings.
353 *
354 * Added at libpng-1.2.41.
355 */
356
357#ifndef PNG_NO_PEDANTIC_WARNINGS
358# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
359# define PNG_PEDANTIC_WARNINGS_SUPPORTED
360# endif
361#endif
362
363#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
364 /* Support for compiler specific function attributes. These are used
365 * so that where compiler support is available, incorrect use of API
366 * functions in png.h will generate compiler warnings. Added at libpng
367 * version 1.2.41. Disabling these removes the warnings but may also produce
368 * less efficient code.
369 */
370# if defined(__clang__) && defined(__has_attribute)
371 /* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
372# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
373# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
374# endif
375# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__)
376# define PNG_NORETURN __attribute__((__noreturn__))
377# endif
378# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__)
379# define PNG_ALLOCATED __attribute__((__malloc__))
380# endif
381# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__)
382# define PNG_DEPRECATED __attribute__((__deprecated__))
383# endif
384# if !defined(PNG_PRIVATE)
385# ifdef __has_extension
386# if __has_extension(attribute_unavailable_with_message)
387# define PNG_PRIVATE __attribute__((__unavailable__(\
388 "This function is not exported by libpng.")))
389# endif
390# endif
391# endif
392# ifndef PNG_RESTRICT
393# define PNG_RESTRICT __restrict
394# endif
395
396# elif defined(__GNUC__)
397# ifndef PNG_USE_RESULT
398# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
399# endif
400# ifndef PNG_NORETURN
401# define PNG_NORETURN __attribute__((__noreturn__))
402# endif
403# if __GNUC__ >= 3
404# ifndef PNG_ALLOCATED
405# define PNG_ALLOCATED __attribute__((__malloc__))
406# endif
407# ifndef PNG_DEPRECATED
408# define PNG_DEPRECATED __attribute__((__deprecated__))
409# endif
410# ifndef PNG_PRIVATE
411# if 0 /* Doesn't work so we use deprecated instead*/
412# define PNG_PRIVATE \
413 __attribute__((warning("This function is not exported by libpng.")))
414# else
415# define PNG_PRIVATE \
416 __attribute__((__deprecated__))
417# endif
418# endif
419# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1))
420# ifndef PNG_RESTRICT
421# define PNG_RESTRICT __restrict
422# endif
423# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */
424# endif /* __GNUC__ >= 3 */
425
426# elif defined(_MSC_VER) && (_MSC_VER >= 1300)
427# ifndef PNG_USE_RESULT
428# define PNG_USE_RESULT /* not supported */
429# endif
430# ifndef PNG_NORETURN
431# define PNG_NORETURN __declspec(noreturn)
432# endif
433# ifndef PNG_ALLOCATED
434# if (_MSC_VER >= 1400)
435# define PNG_ALLOCATED __declspec(restrict)
436# endif
437# endif
438# ifndef PNG_DEPRECATED
439# define PNG_DEPRECATED __declspec(deprecated)
440# endif
441# ifndef PNG_PRIVATE
442# define PNG_PRIVATE __declspec(deprecated)
443# endif
444# ifndef PNG_RESTRICT
445# if (_MSC_VER >= 1400)
446# define PNG_RESTRICT __restrict
447# endif
448# endif
449
450# elif defined(__WATCOMC__)
451# ifndef PNG_RESTRICT
452# define PNG_RESTRICT __restrict
453# endif
454# endif
455#endif /* PNG_PEDANTIC_WARNINGS */
456
457#ifndef PNG_DEPRECATED
458# define PNG_DEPRECATED /* Use of this function is deprecated */
459#endif
460#ifndef PNG_USE_RESULT
461# define PNG_USE_RESULT /* The result of this function must be checked */
462#endif
463#ifndef PNG_NORETURN
464# define PNG_NORETURN /* This function does not return */
465#endif
466#ifndef PNG_ALLOCATED
467# define PNG_ALLOCATED /* The result of the function is new memory */
468#endif
469#ifndef PNG_PRIVATE
470# define PNG_PRIVATE /* This is a private libpng function */
471#endif
472#ifndef PNG_RESTRICT
473# define PNG_RESTRICT /* The C99 "restrict" feature */
474#endif
475
476#ifndef PNG_FP_EXPORT /* A floating point API. */
477# ifdef PNG_FLOATING_POINT_SUPPORTED
478# define PNG_FP_EXPORT(ordinal, type, name, args)\
479 PNG_EXPORT(ordinal, type, name, args);
480# else /* No floating point APIs */
481# define PNG_FP_EXPORT(ordinal, type, name, args)
482# endif
483#endif
484#ifndef PNG_FIXED_EXPORT /* A fixed point API. */
485# ifdef PNG_FIXED_POINT_SUPPORTED
486# define PNG_FIXED_EXPORT(ordinal, type, name, args)\
487 PNG_EXPORT(ordinal, type, name, args);
488# else /* No fixed point APIs */
489# define PNG_FIXED_EXPORT(ordinal, type, name, args)
490# endif
491#endif
492
493#ifndef PNG_BUILDING_SYMBOL_TABLE
494/* Some typedefs to get us started. These should be safe on most of the common
495 * platforms.
496 *
497 * png_uint_32 and png_int_32 may, currently, be larger than required to hold a
498 * 32-bit value however this is not normally advisable.
499 *
500 * png_uint_16 and png_int_16 should always be two bytes in size - this is
501 * verified at library build time.
502 *
503 * png_byte must always be one byte in size.
504 *
505 * The checks below use constants from limits.h, as defined by the ISOC90
506 * standard.
507 */
508#if CHAR_BIT == 8 && UCHAR_MAX == 255
509 typedef unsigned char png_byte;
510#else
511# error "libpng requires 8-bit bytes"
512#endif
513
514#if INT_MIN == -32768 && INT_MAX == 32767
515 typedef int png_int_16;
516#elif SHRT_MIN == -32768 && SHRT_MAX == 32767
517 typedef short png_int_16;
518#else
519# error "libpng requires a signed 16-bit type"
520#endif
521
522#if UINT_MAX == 65535
523 typedef unsigned int png_uint_16;
524#elif USHRT_MAX == 65535
525 typedef unsigned short png_uint_16;
526#else
527# error "libpng requires an unsigned 16-bit type"
528#endif
529
530#if INT_MIN < -2147483646 && INT_MAX > 2147483646
531 typedef int png_int_32;
532#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646
533 typedef long int png_int_32;
534#else
535# error "libpng requires a signed 32-bit (or more) type"
536#endif
537
538#if UINT_MAX > 4294967294U
539 typedef unsigned int png_uint_32;
540#elif ULONG_MAX > 4294967294U
541 typedef unsigned long int png_uint_32;
542#else
543# error "libpng requires an unsigned 32-bit (or more) type"
544#endif
545
546/* Prior to 1.6.0, it was possible to disable the use of size_t and ptrdiff_t.
547 * From 1.6.0 onwards, an ISO C90 compiler, as well as a standard-compliant
548 * behavior of sizeof and ptrdiff_t are required.
549 * The legacy typedefs are provided here for backwards compatibility.
550 */
551typedef size_t png_size_t;
552typedef ptrdiff_t png_ptrdiff_t;
553
554/* libpng needs to know the maximum value of 'size_t' and this controls the
555 * definition of png_alloc_size_t, below. This maximum value of size_t limits
556 * but does not control the maximum allocations the library makes - there is
557 * direct application control of this through png_set_user_limits().
558 */
559#ifndef PNG_SMALL_SIZE_T
560 /* Compiler specific tests for systems where size_t is known to be less than
561 * 32 bits (some of these systems may no longer work because of the lack of
562 * 'far' support; see above.)
563 */
564# if (defined(__TURBOC__) && !defined(__FLAT__)) ||\
565 (defined(_MSC_VER) && defined(MAXSEG_64K))
566# define PNG_SMALL_SIZE_T
567# endif
568#endif
569
570/* png_alloc_size_t is guaranteed to be no smaller than size_t, and no smaller
571 * than png_uint_32. Casts from size_t or png_uint_32 to png_alloc_size_t are
572 * not necessary; in fact, it is recommended not to use them at all, so that
573 * the compiler can complain when something turns out to be problematic.
574 *
575 * Casts in the other direction (from png_alloc_size_t to size_t or
576 * png_uint_32) should be explicitly applied; however, we do not expect to
577 * encounter practical situations that require such conversions.
578 *
579 * PNG_SMALL_SIZE_T must be defined if the maximum value of size_t is less than
580 * 4294967295 - i.e. less than the maximum value of png_uint_32.
581 */
582#ifdef PNG_SMALL_SIZE_T
583 typedef png_uint_32 png_alloc_size_t;
584#else
585 typedef size_t png_alloc_size_t;
586#endif
587
588/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler
589 * implementations of Intel CPU specific support of user-mode segmented address
590 * spaces, where 16-bit pointers address more than 65536 bytes of memory using
591 * separate 'segment' registers. The implementation requires two different
592 * types of pointer (only one of which includes the segment value.)
593 *
594 * If required this support is available in version 1.2 of libpng and may be
595 * available in versions through 1.5, although the correctness of the code has
596 * not been verified recently.
597 */
598
599/* Typedef for floating-point numbers that are converted to fixed-point with a
600 * multiple of 100,000, e.g., gamma
601 */
602typedef png_int_32 png_fixed_point;
603
604/* Add typedefs for pointers */
605typedef void * png_voidp;
606typedef const void * png_const_voidp;
607typedef png_byte * png_bytep;
608typedef const png_byte * png_const_bytep;
609typedef png_uint_32 * png_uint_32p;
610typedef const png_uint_32 * png_const_uint_32p;
611typedef png_int_32 * png_int_32p;
612typedef const png_int_32 * png_const_int_32p;
613typedef png_uint_16 * png_uint_16p;
614typedef const png_uint_16 * png_const_uint_16p;
615typedef png_int_16 * png_int_16p;
616typedef const png_int_16 * png_const_int_16p;
617typedef char * png_charp;
618typedef const char * png_const_charp;
619typedef png_fixed_point * png_fixed_point_p;
620typedef const png_fixed_point * png_const_fixed_point_p;
621typedef size_t * png_size_tp;
622typedef const size_t * png_const_size_tp;
623
624#ifdef PNG_STDIO_SUPPORTED
625typedef FILE * png_FILE_p;
626#endif
627
628#ifdef PNG_FLOATING_POINT_SUPPORTED
629typedef double * png_doublep;
630typedef const double * png_const_doublep;
631#endif
632
633/* Pointers to pointers; i.e. arrays */
634typedef png_byte * * png_bytepp;
635typedef png_uint_32 * * png_uint_32pp;
636typedef png_int_32 * * png_int_32pp;
637typedef png_uint_16 * * png_uint_16pp;
638typedef png_int_16 * * png_int_16pp;
639typedef const char * * png_const_charpp;
640typedef char * * png_charpp;
641typedef png_fixed_point * * png_fixed_point_pp;
642#ifdef PNG_FLOATING_POINT_SUPPORTED
643typedef double * * png_doublepp;
644#endif
645
646/* Pointers to pointers to pointers; i.e., pointer to array */
647typedef char * * * png_charppp;
648
649#endif /* PNG_BUILDING_SYMBOL_TABLE */
650
651#endif /* PNGCONF_H */
652