Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1.  
  2. /* pngconf.h - machine configurable file for libpng
  3.  *
  4.  * libpng version 1.4.4 - September 23, 2010
  5.  * For conditions of distribution and use, see copyright notice in png.h
  6.  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  7.  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  8.  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  9.  *
  10.  * This code is released under the libpng license.
  11.  * For conditions of distribution and use, see the disclaimer
  12.  * and license in png.h
  13.  *
  14.  */
  15.  
  16. /* Any machine specific code is near the front of this file, so if you
  17.  * are configuring libpng for a machine, you may want to read the section
  18.  * starting here down to where it starts to typedef png_color, png_text,
  19.  * and png_info.
  20.  */
  21.  
  22. #ifndef PNGCONF_H
  23. #define PNGCONF_H
  24.  
  25. #ifndef PNG_NO_LIMITS_H
  26. #  include <limits.h>
  27. #endif
  28.  
  29. /* Added at libpng-1.2.9 */
  30.  
  31. /* config.h is created by and PNG_CONFIGURE_LIBPNG is set by the "configure"
  32.  * script.
  33.  */
  34. #ifdef PNG_CONFIGURE_LIBPNG
  35. #  ifdef HAVE_CONFIG_H
  36. #    include "config.h"
  37. #  endif
  38. #endif
  39.  
  40. /*
  41.  * Added at libpng-1.2.8
  42.  *
  43.  * PNG_USER_CONFIG has to be defined on the compiler command line. This
  44.  * includes the resource compiler for Windows DLL configurations.
  45.  */
  46. #ifdef PNG_USER_CONFIG
  47. #  include "pngusr.h"
  48. #  ifndef PNG_USER_PRIVATEBUILD
  49. #    define PNG_USER_PRIVATEBUILD
  50. #  endif
  51. #endif
  52.  
  53. /*
  54.  * If you create a private DLL you should define in "pngusr.h" the following:
  55.  * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
  56.  *        the DLL was built>
  57.  *  e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
  58.  * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
  59.  *        distinguish your DLL from those of the official release. These
  60.  *        correspond to the trailing letters that come after the version
  61.  *        number and must match your private DLL name>
  62.  *  e.g. // private DLL "libpng14gx.dll"
  63.  *       #define PNG_USER_DLLFNAME_POSTFIX "gx"
  64.  *
  65.  * The following macros are also at your disposal if you want to complete the
  66.  * DLL VERSIONINFO structure.
  67.  * - PNG_USER_VERSIONINFO_COMMENTS
  68.  * - PNG_USER_VERSIONINFO_COMPANYNAME
  69.  * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
  70.  */
  71.  
  72. #ifdef __STDC__
  73. #  ifdef SPECIALBUILD
  74. #    pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
  75.      are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
  76. #  endif
  77.  
  78. #  ifdef PRIVATEBUILD
  79. #    pragma message("PRIVATEBUILD is deprecated.\
  80.      Use PNG_USER_PRIVATEBUILD instead.")
  81. #    define PNG_USER_PRIVATEBUILD PRIVATEBUILD
  82. #  endif
  83. #endif /* __STDC__ */
  84.  
  85. /* End of material added to libpng-1.2.8 */
  86.  
  87. #ifndef PNG_VERSION_INFO_ONLY
  88.  
  89. /* This is the size of the compression buffer, and thus the size of
  90.  * an IDAT chunk.  Make this whatever size you feel is best for your
  91.  * machine.  One of these will be allocated per png_struct.  When this
  92.  * is full, it writes the data to the disk, and does some other
  93.  * calculations.  Making this an extremely small size will slow
  94.  * the library down, but you may want to experiment to determine
  95.  * where it becomes significant, if you are concerned with memory
  96.  * usage.  Note that zlib allocates at least 32Kb also.  For readers,
  97.  * this describes the size of the buffer available to read the data in.
  98.  * Unless this gets smaller than the size of a row (compressed),
  99.  * it should not make much difference how big this is.
  100.  */
  101.  
  102. #ifndef PNG_ZBUF_SIZE
  103. #  define PNG_ZBUF_SIZE 8192
  104. #endif
  105.  
  106. /* Enable if you want a write-only libpng */
  107.  
  108. #ifndef PNG_NO_READ_SUPPORTED
  109. #  define PNG_READ_SUPPORTED
  110. #endif
  111.  
  112. /* Enable if you want a read-only libpng */
  113.  
  114. #ifndef PNG_NO_WRITE_SUPPORTED
  115. #  define PNG_WRITE_SUPPORTED
  116. #endif
  117.  
  118. /* Enabled in 1.4.0. */
  119. #ifdef PNG_ALLOW_BENIGN_ERRORS
  120. #  define png_benign_error png_warning
  121. #  define png_chunk_benign_error png_chunk_warning
  122. #else
  123. #  ifndef PNG_BENIGN_ERRORS_SUPPORTED
  124. #    define png_benign_error png_error
  125. #    define png_chunk_benign_error png_chunk_error
  126. #  endif
  127. #endif
  128.  
  129. /* Added at libpng version 1.4.0 */
  130. #if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED)
  131. #  define PNG_WARNINGS_SUPPORTED
  132. #endif
  133.  
  134. /* Added at libpng version 1.4.0 */
  135. #if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED)
  136. #  define PNG_ERROR_TEXT_SUPPORTED
  137. #endif
  138.  
  139. /* Added at libpng version 1.4.0 */
  140. #if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED)
  141. #  define PNG_CHECK_cHRM_SUPPORTED
  142. #endif
  143.  
  144. /* Added at libpng version 1.4.0 */
  145. #if !defined(PNG_NO_ALIGNED_MEMORY) && !defined(PNG_ALIGNED_MEMORY_SUPPORTED)
  146. #  define PNG_ALIGNED_MEMORY_SUPPORTED
  147. #endif
  148.  
  149. /* Enabled by default in 1.2.0.  You can disable this if you don't need to
  150.    support PNGs that are embedded in MNG datastreams */
  151. #ifndef PNG_NO_MNG_FEATURES
  152. #  ifndef PNG_MNG_FEATURES_SUPPORTED
  153. #    define PNG_MNG_FEATURES_SUPPORTED
  154. #  endif
  155. #endif
  156.  
  157. /* Added at libpng version 1.4.0 */
  158. #ifndef PNG_NO_FLOATING_POINT_SUPPORTED
  159. #  ifndef PNG_FLOATING_POINT_SUPPORTED
  160. #    define PNG_FLOATING_POINT_SUPPORTED
  161. #  endif
  162. #endif
  163.  
  164. /* Added at libpng-1.4.0beta49 for testing (this test is no longer used
  165.    in libpng and png_calloc() is always present)
  166.  */
  167. #define PNG_CALLOC_SUPPORTED
  168.  
  169. /* If you are running on a machine where you cannot allocate more
  170.  * than 64K of memory at once, uncomment this.  While libpng will not
  171.  * normally need that much memory in a chunk (unless you load up a very
  172.  * large file), zlib needs to know how big of a chunk it can use, and
  173.  * libpng thus makes sure to check any memory allocation to verify it
  174.  * will fit into memory.
  175. #define PNG_MAX_MALLOC_64K
  176.  */
  177. #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
  178. #  define PNG_MAX_MALLOC_64K
  179. #endif
  180.  
  181. /* Special munging to support doing things the 'cygwin' way:
  182.  * 'Normal' png-on-win32 defines/defaults:
  183.  *   PNG_BUILD_DLL -- building dll
  184.  *   PNG_USE_DLL   -- building an application, linking to dll
  185.  *   (no define)   -- building static library, or building an
  186.  *                    application and linking to the static lib
  187.  * 'Cygwin' defines/defaults:
  188.  *   PNG_BUILD_DLL -- (ignored) building the dll
  189.  *   (no define)   -- (ignored) building an application, linking to the dll
  190.  *   PNG_STATIC    -- (ignored) building the static lib, or building an
  191.  *                    application that links to the static lib.
  192.  *   ALL_STATIC    -- (ignored) building various static libs, or building an
  193.  *                    application that links to the static libs.
  194.  * Thus,
  195.  * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
  196.  * this bit of #ifdefs will define the 'correct' config variables based on
  197.  * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
  198.  * unnecessary.
  199.  *
  200.  * Also, the precedence order is:
  201.  *   ALL_STATIC (since we can't #undef something outside our namespace)
  202.  *   PNG_BUILD_DLL
  203.  *   PNG_STATIC
  204.  *   (nothing) == PNG_USE_DLL
  205.  *
  206.  * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
  207.  *   of auto-import in binutils, we no longer need to worry about
  208.  *   __declspec(dllexport) / __declspec(dllimport) and friends.  Therefore,
  209.  *   we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
  210.  *   to __declspec() stuff.  However, we DO need to worry about
  211.  *   PNG_BUILD_DLL and PNG_STATIC because those change some defaults
  212.  *   such as CONSOLE_IO.
  213.  */
  214. #ifdef __CYGWIN__
  215. #  ifdef ALL_STATIC
  216. #    ifdef PNG_BUILD_DLL
  217. #      undef PNG_BUILD_DLL
  218. #    endif
  219. #    ifdef PNG_USE_DLL
  220. #      undef PNG_USE_DLL
  221. #    endif
  222. #    ifdef PNG_DLL
  223. #      undef PNG_DLL
  224. #    endif
  225. #    ifndef PNG_STATIC
  226. #      define PNG_STATIC
  227. #    endif
  228. #  else
  229. #    ifdef PNG_BUILD_DLL
  230. #      ifdef PNG_STATIC
  231. #        undef PNG_STATIC
  232. #      endif
  233. #      ifdef PNG_USE_DLL
  234. #        undef PNG_USE_DLL
  235. #      endif
  236. #      ifndef PNG_DLL
  237. #        define PNG_DLL
  238. #      endif
  239. #    else
  240. #      ifdef PNG_STATIC
  241. #        ifdef PNG_USE_DLL
  242. #          undef PNG_USE_DLL
  243. #        endif
  244. #        ifdef PNG_DLL
  245. #          undef PNG_DLL
  246. #        endif
  247. #      else
  248. #        ifndef PNG_USE_DLL
  249. #          define PNG_USE_DLL
  250. #        endif
  251. #        ifndef PNG_DLL
  252. #          define PNG_DLL
  253. #        endif
  254. #      endif
  255. #    endif
  256. #  endif
  257. #endif
  258.  
  259. /* This protects us against compilers that run on a windowing system
  260.  * and thus don't have or would rather us not use the stdio types:
  261.  * stdin, stdout, and stderr.  The only one currently used is stderr
  262.  * in png_error() and png_warning().  #defining PNG_NO_CONSOLE_IO will
  263.  * prevent these from being compiled and used. #defining PNG_NO_STDIO
  264.  * will also prevent these, plus will prevent the entire set of stdio
  265.  * macros and functions (FILE *, printf, etc.) from being compiled and used,
  266.  * unless (PNG_DEBUG > 0) has been #defined.
  267.  *
  268.  * #define PNG_NO_CONSOLE_IO
  269.  * #define PNG_NO_STDIO
  270.  */
  271.  
  272. #ifdef _WIN32_WCE
  273. #  define PNG_NO_CONSOLE_IO
  274. #  define PNG_NO_STDIO
  275. #  define PNG_NO_TIME_RFC1123
  276. #  ifdef PNG_DEBUG
  277. #    undef PNG_DEBUG
  278. #  endif
  279. #endif
  280.  
  281. #if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED)
  282. #  define PNG_STDIO_SUPPORTED
  283. #endif
  284.  
  285. #ifdef PNG_BUILD_DLL
  286. #  if !defined(PNG_CONSOLE_IO_SUPPORTED) && !defined(PNG_NO_CONSOLE_IO)
  287. #    define PNG_NO_CONSOLE_IO
  288. #  endif
  289. #endif
  290.  
  291. #  ifdef PNG_NO_STDIO
  292. #    ifndef PNG_NO_CONSOLE_IO
  293. #      define PNG_NO_CONSOLE_IO
  294. #    endif
  295. #    ifdef PNG_DEBUG
  296. #      if (PNG_DEBUG > 0)
  297. #        include <stdio.h>
  298. #      endif
  299. #    endif
  300. #  else
  301. #    include <stdio.h>
  302. #  endif
  303.  
  304. #if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED)
  305. #  define PNG_CONSOLE_IO_SUPPORTED
  306. #endif
  307.  
  308. /* This macro protects us against machines that don't have function
  309.  * prototypes (ie K&R style headers).  If your compiler does not handle
  310.  * function prototypes, define this macro and use the included ansi2knr.
  311.  * I've always been able to use _NO_PROTO as the indicator, but you may
  312.  * need to drag the empty declaration out in front of here, or change the
  313.  * ifdef to suit your own needs.
  314.  */
  315. #ifndef PNGARG
  316.  
  317. #ifdef OF /* zlib prototype munger */
  318. #  define PNGARG(arglist) OF(arglist)
  319. #else
  320.  
  321. #ifdef _NO_PROTO
  322. #  define PNGARG(arglist) ()
  323. #else
  324. #  define PNGARG(arglist) arglist
  325. #endif /* _NO_PROTO */
  326.  
  327. #endif /* OF */
  328.  
  329. #endif /* PNGARG */
  330.  
  331. /* Try to determine if we are compiling on a Mac.  Note that testing for
  332.  * just __MWERKS__ is not good enough, because the Codewarrior is now used
  333.  * on non-Mac platforms.
  334.  */
  335. #ifndef MACOS
  336. #  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
  337.       defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
  338. #    define MACOS
  339. #  endif
  340. #endif
  341.  
  342. /* Enough people need this for various reasons to include it here */
  343. #if !defined(MACOS) && !defined(RISCOS)
  344. #  include <sys/types.h>
  345. #endif
  346.  
  347. /* PNG_SETJMP_NOT_SUPPORTED and PNG_NO_SETJMP_SUPPORTED are deprecated. */
  348. #if !defined(PNG_NO_SETJMP) && \
  349.     !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
  350. #  define PNG_SETJMP_SUPPORTED
  351. #endif
  352.  
  353. #ifdef PNG_SETJMP_SUPPORTED
  354. /* This is an attempt to force a single setjmp behaviour on Linux.  If
  355.  * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
  356.  *
  357.  * You can bypass this test if you know that your application uses exactly
  358.  * the same setjmp.h that was included when libpng was built.  Only define
  359.  * PNG_SKIP_SETJMP_CHECK while building your application, prior to the
  360.  * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
  361.  * while building a separate libpng library for general use.
  362.  */
  363.  
  364. #  ifndef PNG_SKIP_SETJMP_CHECK
  365. #    ifdef __linux__
  366. #      ifdef _BSD_SOURCE
  367. #        define PNG_SAVE_BSD_SOURCE
  368. #        undef _BSD_SOURCE
  369. #      endif
  370. #      ifdef _SETJMP_H
  371.        /* If you encounter a compiler error here, see the explanation
  372.         * near the end of INSTALL.
  373.         */
  374.            __pngconf.h__ in libpng already includes setjmp.h;
  375.            __dont__ include it again.;
  376. #      endif
  377. #    endif /* __linux__ */
  378. #  endif /* PNG_SKIP_SETJMP_CHECK */
  379.  
  380.    /* Include setjmp.h for error handling */
  381. #  include <setjmp.h>
  382.  
  383. #  ifdef __linux__
  384. #    ifdef PNG_SAVE_BSD_SOURCE
  385. #      ifdef _BSD_SOURCE
  386. #        undef _BSD_SOURCE
  387. #      endif
  388. #      define _BSD_SOURCE
  389. #      undef PNG_SAVE_BSD_SOURCE
  390. #    endif
  391. #  endif /* __linux__ */
  392. #endif /* PNG_SETJMP_SUPPORTED */
  393.  
  394. #ifdef BSD
  395. #  include <strings.h>
  396. #else
  397. #  include <string.h>
  398. #endif
  399.  
  400. /* Other defines for things like memory and the like can go here.  */
  401.  
  402. /* This controls how fine the quantizing gets.  As this allocates
  403.  * a largish chunk of memory (32K), those who are not as concerned
  404.  * with quantizing quality can decrease some or all of these.
  405.  */
  406.  
  407. /* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS
  408.  * These migration aids will be removed from libpng-1.5.0.
  409.  */
  410. #ifdef PNG_DITHER_RED_BITS
  411. #  define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS
  412. #endif
  413. #ifdef PNG_DITHER_GREEN_BITS
  414. #  define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS
  415. #endif
  416. #ifdef PNG_DITHER_BLUE_BITS
  417. #  define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS
  418. #endif
  419.  
  420. #ifndef PNG_QUANTIZE_RED_BITS
  421. #  define PNG_QUANTIZE_RED_BITS 5
  422. #endif
  423. #ifndef PNG_QUANTIZE_GREEN_BITS
  424. #  define PNG_QUANTIZE_GREEN_BITS 5
  425. #endif
  426. #ifndef PNG_QUANTIZE_BLUE_BITS
  427. #  define PNG_QUANTIZE_BLUE_BITS 5
  428. #endif
  429.  
  430. /* This controls how fine the gamma correction becomes when you
  431.  * are only interested in 8 bits anyway.  Increasing this value
  432.  * results in more memory being used, and more pow() functions
  433.  * being called to fill in the gamma tables.  Don't set this value
  434.  * less then 8, and even that may not work (I haven't tested it).
  435.  */
  436.  
  437. #ifndef PNG_MAX_GAMMA_8
  438. #  define PNG_MAX_GAMMA_8 11
  439. #endif
  440.  
  441. /* This controls how much a difference in gamma we can tolerate before
  442.  * we actually start doing gamma conversion.
  443.  */
  444. #ifndef PNG_GAMMA_THRESHOLD
  445. #  define PNG_GAMMA_THRESHOLD 0.05
  446. #endif
  447.  
  448. /* The following uses const char * instead of char * for error
  449.  * and warning message functions, so some compilers won't complain.
  450.  * If you do not want to use const, define PNG_NO_CONST.
  451.  */
  452.  
  453. #ifndef PNG_CONST
  454. #  ifndef PNG_NO_CONST
  455. #    define PNG_CONST const
  456. #  else
  457. #    define PNG_CONST
  458. #  endif
  459. #endif
  460.  
  461. /* The following defines give you the ability to remove code from the
  462.  * library that you will not be using.  I wish I could figure out how to
  463.  * automate this, but I can't do that without making it seriously hard
  464.  * on the users.  So if you are not using an ability, change the #define
  465.  * to an #undef, or pass in PNG_NO_feature and that part of the library
  466.  * will not be compiled.
  467.  
  468.  * If your linker can't find a function, you may want to make sure the
  469.  * ability is defined here.  Some of these depend upon some others being
  470.  * defined.  I haven't figured out all the interactions here, so you may
  471.  * have to experiment awhile to get everything to compile.  If you are
  472.  * creating or using a shared library, you probably shouldn't touch this,
  473.  * as it will affect the size of the structures, and this will cause bad
  474.  * things to happen if the library and/or application ever change.
  475.  */
  476.  
  477. /* Any features you will not be using can be undef'ed here */
  478.  
  479. /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
  480.  * to turn it off with PNG_NO_READ|WRITE_TRANSFORMS on the compile line,
  481.  * then pick and choose which ones to define without having to edit this
  482.  * file. It is safe to use the PNG_NO_READ|WRITE_TRANSFORMS
  483.  * if you only want to have a png-compliant reader/writer but don't need
  484.  * any of the extra transformations.  This saves about 80 kbytes in a
  485.  * typical installation of the library. (PNG_NO_* form added in version
  486.  * 1.0.1c, for consistency; PNG_*_TRANSFORMS_NOT_SUPPORTED deprecated in
  487.  * 1.4.0)
  488.  */
  489.  
  490. /* Ignore attempt to turn off both floating and fixed point support */
  491. #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
  492.     !defined(PNG_NO_FIXED_POINT_SUPPORTED)
  493. #  define PNG_FIXED_POINT_SUPPORTED
  494. #endif
  495.  
  496. #ifdef PNG_READ_SUPPORTED
  497.  
  498. /* PNG_READ_TRANSFORMS_NOT_SUPPORTED is deprecated. */
  499. #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
  500.       !defined(PNG_NO_READ_TRANSFORMS)
  501. #  define PNG_READ_TRANSFORMS_SUPPORTED
  502. #endif
  503.  
  504. #ifdef PNG_READ_TRANSFORMS_SUPPORTED
  505. #  ifndef PNG_NO_READ_EXPAND
  506. #    define PNG_READ_EXPAND_SUPPORTED
  507. #  endif
  508. #  ifndef PNG_NO_READ_SHIFT
  509. #    define PNG_READ_SHIFT_SUPPORTED
  510. #  endif
  511. #  ifndef PNG_NO_READ_PACK
  512. #    define PNG_READ_PACK_SUPPORTED
  513. #  endif
  514. #  ifndef PNG_NO_READ_BGR
  515. #    define PNG_READ_BGR_SUPPORTED
  516. #  endif
  517. #  ifndef PNG_NO_READ_SWAP
  518. #    define PNG_READ_SWAP_SUPPORTED
  519. #  endif
  520. #  ifndef PNG_NO_READ_PACKSWAP
  521. #    define PNG_READ_PACKSWAP_SUPPORTED
  522. #  endif
  523. #  ifndef PNG_NO_READ_INVERT
  524. #    define PNG_READ_INVERT_SUPPORTED
  525. #  endif
  526. #  ifndef PNG_NO_READ_QUANTIZE
  527.      /* Prior to libpng-1.4.0 this was PNG_READ_DITHER_SUPPORTED */
  528. #    ifndef PNG_NO_READ_DITHER  /* This migration aid will be removed */
  529. #      define PNG_READ_QUANTIZE_SUPPORTED
  530. #    endif
  531. #  endif
  532. #  ifndef PNG_NO_READ_BACKGROUND
  533. #    define PNG_READ_BACKGROUND_SUPPORTED
  534. #  endif
  535. #  ifndef PNG_NO_READ_16_TO_8
  536. #    define PNG_READ_16_TO_8_SUPPORTED
  537. #  endif
  538. #  ifndef PNG_NO_READ_FILLER
  539. #    define PNG_READ_FILLER_SUPPORTED
  540. #  endif
  541. #  ifndef PNG_NO_READ_GAMMA
  542. #    define PNG_READ_GAMMA_SUPPORTED
  543. #  endif
  544. #  ifndef PNG_NO_READ_GRAY_TO_RGB
  545. #    define PNG_READ_GRAY_TO_RGB_SUPPORTED
  546. #  endif
  547. #  ifndef PNG_NO_READ_SWAP_ALPHA
  548. #    define PNG_READ_SWAP_ALPHA_SUPPORTED
  549. #  endif
  550. #  ifndef PNG_NO_READ_INVERT_ALPHA
  551. #    define PNG_READ_INVERT_ALPHA_SUPPORTED
  552. #  endif
  553. #  ifndef PNG_NO_READ_STRIP_ALPHA
  554. #    define PNG_READ_STRIP_ALPHA_SUPPORTED
  555. #  endif
  556. #  ifndef PNG_NO_READ_USER_TRANSFORM
  557. #    define PNG_READ_USER_TRANSFORM_SUPPORTED
  558. #  endif
  559. #  ifndef PNG_NO_READ_RGB_TO_GRAY
  560. #    define PNG_READ_RGB_TO_GRAY_SUPPORTED
  561. #  endif
  562. #endif /* PNG_READ_TRANSFORMS_SUPPORTED */
  563.  
  564. /* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */
  565. #if !defined(PNG_NO_PROGRESSIVE_READ) && \
  566.  !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED)  /* if you don't do progressive */
  567. #  define PNG_PROGRESSIVE_READ_SUPPORTED     /* reading.  This is not talking */
  568. #endif                               /* about interlacing capability!  You'll */
  569.             /* still have interlacing unless you change the following define: */
  570.  
  571. #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
  572.  
  573. /* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */
  574. #if !defined(PNG_NO_SEQUENTIAL_READ) && \
  575.     !defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \
  576.     !defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED)
  577. #  define PNG_SEQUENTIAL_READ_SUPPORTED
  578. #endif
  579.  
  580. #ifndef PNG_NO_READ_COMPOSITE_NODIV
  581. #  ifndef PNG_NO_READ_COMPOSITED_NODIV  /* libpng-1.0.x misspelling */
  582. #    define PNG_READ_COMPOSITE_NODIV_SUPPORTED   /* well tested on Intel, SGI */
  583. #  endif
  584. #endif
  585.  
  586. #if !defined(PNG_NO_GET_INT_32) || defined(PNG_READ_oFFS_SUPPORTED) || \
  587.     defined(PNG_READ_pCAL_SUPPORTED)
  588. #  ifndef PNG_GET_INT_32_SUPPORTED
  589. #    define PNG_GET_INT_32_SUPPORTED
  590. #  endif
  591. #endif
  592.  
  593. #endif /* PNG_READ_SUPPORTED */
  594.  
  595. #ifdef PNG_WRITE_SUPPORTED
  596.  
  597. /* PNG_WRITE_TRANSFORMS_NOT_SUPPORTED is deprecated. */
  598. #if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
  599.     !defined(PNG_NO_WRITE_TRANSFORMS)
  600. #  define PNG_WRITE_TRANSFORMS_SUPPORTED
  601. #endif
  602.  
  603. #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
  604. #  ifndef PNG_NO_WRITE_SHIFT
  605. #    define PNG_WRITE_SHIFT_SUPPORTED
  606. #  endif
  607. #  ifndef PNG_NO_WRITE_PACK
  608. #    define PNG_WRITE_PACK_SUPPORTED
  609. #  endif
  610. #  ifndef PNG_NO_WRITE_BGR
  611. #    define PNG_WRITE_BGR_SUPPORTED
  612. #  endif
  613. #  ifndef PNG_NO_WRITE_SWAP
  614. #    define PNG_WRITE_SWAP_SUPPORTED
  615. #  endif
  616. #  ifndef PNG_NO_WRITE_PACKSWAP
  617. #    define PNG_WRITE_PACKSWAP_SUPPORTED
  618. #  endif
  619. #  ifndef PNG_NO_WRITE_INVERT
  620. #    define PNG_WRITE_INVERT_SUPPORTED
  621. #  endif
  622. #  ifndef PNG_NO_WRITE_FILLER
  623. #    define PNG_WRITE_FILLER_SUPPORTED   /* same as WRITE_STRIP_ALPHA */
  624. #  endif
  625. #  ifndef PNG_NO_WRITE_SWAP_ALPHA
  626. #    define PNG_WRITE_SWAP_ALPHA_SUPPORTED
  627. #  endif
  628. #  ifndef PNG_NO_WRITE_INVERT_ALPHA
  629. #    define PNG_WRITE_INVERT_ALPHA_SUPPORTED
  630. #  endif
  631. #  ifndef PNG_NO_WRITE_USER_TRANSFORM
  632. #    define PNG_WRITE_USER_TRANSFORM_SUPPORTED
  633. #  endif
  634. #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
  635.  
  636. #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
  637.     !defined(PNG_WRITE_INTERLACING_SUPPORTED)
  638.     /* This is not required for PNG-compliant encoders, but can cause
  639.      * trouble if left undefined
  640.     */
  641. #  define PNG_WRITE_INTERLACING_SUPPORTED
  642. #endif
  643.  
  644. #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
  645.     !defined(PNG_WRITE_WEIGHTED_FILTER) && \
  646.      defined(PNG_FLOATING_POINT_SUPPORTED)
  647. #  define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
  648. #endif
  649.  
  650. #ifndef PNG_NO_WRITE_FLUSH
  651. #  define PNG_WRITE_FLUSH_SUPPORTED
  652. #endif
  653.  
  654. #if !defined(PNG_NO_SAVE_INT_32) || defined(PNG_WRITE_oFFS_SUPPORTED) || \
  655.     defined(PNG_WRITE_pCAL_SUPPORTED)
  656. #  ifndef PNG_SAVE_INT_32_SUPPORTED
  657. #    define PNG_SAVE_INT_32_SUPPORTED
  658. #  endif
  659. #endif
  660.  
  661. #endif /* PNG_WRITE_SUPPORTED */
  662.  
  663. #define PNG_NO_ERROR_NUMBERS
  664.  
  665. #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
  666.     defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
  667. #  ifndef PNG_NO_USER_TRANSFORM_PTR
  668. #    define PNG_USER_TRANSFORM_PTR_SUPPORTED
  669. #  endif
  670. #endif
  671.  
  672. #if defined(PNG_STDIO_SUPPORTED) && !defined(PNG_TIME_RFC1123_SUPPORTED)
  673. #  define PNG_TIME_RFC1123_SUPPORTED
  674. #endif
  675.  
  676. /* This adds extra functions in pngget.c for accessing data from the
  677.  * info pointer (added in version 0.99)
  678.  * png_get_image_width()
  679.  * png_get_image_height()
  680.  * png_get_bit_depth()
  681.  * png_get_color_type()
  682.  * png_get_compression_type()
  683.  * png_get_filter_type()
  684.  * png_get_interlace_type()
  685.  * png_get_pixel_aspect_ratio()
  686.  * png_get_pixels_per_meter()
  687.  * png_get_x_offset_pixels()
  688.  * png_get_y_offset_pixels()
  689.  * png_get_x_offset_microns()
  690.  * png_get_y_offset_microns()
  691.  */
  692. #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
  693. #  define PNG_EASY_ACCESS_SUPPORTED
  694. #endif
  695.  
  696. /* Added at libpng-1.2.0 */
  697. #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
  698. #  define PNG_USER_MEM_SUPPORTED
  699. #endif
  700.  
  701. /* Added at libpng-1.2.6 */
  702. #ifndef PNG_NO_SET_USER_LIMITS
  703. #  ifndef PNG_SET_USER_LIMITS_SUPPORTED
  704. #    define PNG_SET_USER_LIMITS_SUPPORTED
  705. #  endif
  706.   /* Feature added at libpng-1.4.0, this flag added at 1.4.1 */
  707. #  ifndef PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
  708. #    define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
  709. #  endif
  710.   /* Feature added at libpng-1.4.1, this flag added at 1.4.1 */
  711. #  ifndef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
  712. #    define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
  713. #  endif
  714. #endif
  715.  
  716. /* Added at libpng-1.2.43 */
  717. #ifndef PNG_USER_LIMITS_SUPPORTED
  718. #  ifndef PNG_NO_USER_LIMITS
  719. #    define PNG_USER_LIMITS_SUPPORTED
  720. #  endif
  721. #endif
  722.  
  723. /* Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGs no matter
  724.  * how large, set these two limits to 0x7fffffffL
  725.  */
  726. #ifndef PNG_USER_WIDTH_MAX
  727. #  define PNG_USER_WIDTH_MAX 1000000L
  728. #endif
  729. #ifndef PNG_USER_HEIGHT_MAX
  730. #  define PNG_USER_HEIGHT_MAX 1000000L
  731. #endif
  732.  
  733. /* Added at libpng-1.2.43.  To accept all valid PNGs no matter
  734.  * how large, set these two limits to 0.
  735.  */
  736. #ifndef PNG_USER_CHUNK_CACHE_MAX
  737. #  define PNG_USER_CHUNK_CACHE_MAX 0
  738. #endif
  739.  
  740. /* Added at libpng-1.2.43 */
  741. #ifndef PNG_USER_CHUNK_MALLOC_MAX
  742. #  define PNG_USER_CHUNK_MALLOC_MAX 0
  743. #endif
  744.  
  745. /* Added at libpng-1.4.0 */
  746. #if !defined(PNG_NO_IO_STATE) && !defined(PNG_IO_STATE_SUPPORTED)
  747. #  define PNG_IO_STATE_SUPPORTED
  748. #endif
  749.  
  750. #ifndef PNG_LITERAL_SHARP
  751. #  define PNG_LITERAL_SHARP 0x23
  752. #endif
  753. #ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
  754. #  define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b
  755. #endif
  756. #ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
  757. #  define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d
  758. #endif
  759. #ifndef PNG_STRING_NEWLINE
  760. #define PNG_STRING_NEWLINE "\n"
  761. #endif
  762.  
  763. /* These are currently experimental features, define them if you want */
  764.  
  765. /* Very little testing */
  766. /*
  767. #ifdef PNG_READ_SUPPORTED
  768. #  ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
  769. #    define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
  770. #  endif
  771. #endif
  772. */
  773.  
  774. /* This is only for PowerPC big-endian and 680x0 systems */
  775. /* some testing */
  776. /*
  777. #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
  778. #  define PNG_READ_BIG_ENDIAN_SUPPORTED
  779. #endif
  780. */
  781.  
  782. #if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS)
  783. #  define PNG_USE_READ_MACROS
  784. #endif
  785.  
  786. /* Buggy compilers (e.g., gcc 2.7.2.2) need PNG_NO_POINTER_INDEXING */
  787.  
  788. #if !defined(PNG_NO_POINTER_INDEXING) && \
  789.     !defined(PNG_POINTER_INDEXING_SUPPORTED)
  790. #  define PNG_POINTER_INDEXING_SUPPORTED
  791. #endif
  792.  
  793.  
  794. /* Any chunks you are not interested in, you can undef here.  The
  795.  * ones that allocate memory may be expecially important (hIST,
  796.  * tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info
  797.  * a bit smaller.
  798.  */
  799.  
  800. /* The size of the png_text structure changed in libpng-1.0.6 when
  801.  * iTXt support was added.  iTXt support was turned off by default through
  802.  * libpng-1.2.x, to support old apps that malloc the png_text structure
  803.  * instead of calling png_set_text() and letting libpng malloc it.  It
  804.  * was turned on by default in libpng-1.4.0.
  805.  */
  806.  
  807. /* PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */
  808. #if defined(PNG_READ_SUPPORTED) && \
  809.     !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
  810.     !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
  811. #  define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
  812. #endif
  813.  
  814. /* PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */
  815. #if defined(PNG_WRITE_SUPPORTED) && \
  816.     !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
  817.     !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
  818. #  define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
  819. #endif
  820.  
  821. #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
  822.  
  823. #ifdef PNG_NO_READ_TEXT
  824. #  define PNG_NO_READ_iTXt
  825. #  define PNG_NO_READ_tEXt
  826. #  define PNG_NO_READ_zTXt
  827. #endif
  828.  
  829. #ifndef PNG_NO_READ_bKGD
  830. #  define PNG_READ_bKGD_SUPPORTED
  831. #  define PNG_bKGD_SUPPORTED
  832. #endif
  833. #ifndef PNG_NO_READ_cHRM
  834. #  define PNG_READ_cHRM_SUPPORTED
  835. #  define PNG_cHRM_SUPPORTED
  836. #endif
  837. #ifndef PNG_NO_READ_gAMA
  838. #  define PNG_READ_gAMA_SUPPORTED
  839. #  define PNG_gAMA_SUPPORTED
  840. #endif
  841. #ifndef PNG_NO_READ_hIST
  842. #  define PNG_READ_hIST_SUPPORTED
  843. #  define PNG_hIST_SUPPORTED
  844. #endif
  845. #ifndef PNG_NO_READ_iCCP
  846. #  define PNG_READ_iCCP_SUPPORTED
  847. #  define PNG_iCCP_SUPPORTED
  848. #endif
  849. #ifndef PNG_NO_READ_iTXt
  850. #  ifndef PNG_READ_iTXt_SUPPORTED
  851. #    define PNG_READ_iTXt_SUPPORTED
  852. #  endif
  853. #  ifndef PNG_iTXt_SUPPORTED
  854. #    define PNG_iTXt_SUPPORTED
  855. #  endif
  856. #endif
  857. #ifndef PNG_NO_READ_oFFs
  858. #  define PNG_READ_oFFs_SUPPORTED
  859. #  define PNG_oFFs_SUPPORTED
  860. #endif
  861. #ifndef PNG_NO_READ_pCAL
  862. #  define PNG_READ_pCAL_SUPPORTED
  863. #  define PNG_pCAL_SUPPORTED
  864. #endif
  865. #ifndef PNG_NO_READ_sCAL
  866. #  define PNG_READ_sCAL_SUPPORTED
  867. #  define PNG_sCAL_SUPPORTED
  868. #endif
  869. #ifndef PNG_NO_READ_pHYs
  870. #  define PNG_READ_pHYs_SUPPORTED
  871. #  define PNG_pHYs_SUPPORTED
  872. #endif
  873. #ifndef PNG_NO_READ_sBIT
  874. #  define PNG_READ_sBIT_SUPPORTED
  875. #  define PNG_sBIT_SUPPORTED
  876. #endif
  877. #ifndef PNG_NO_READ_sPLT
  878. #  define PNG_READ_sPLT_SUPPORTED
  879. #  define PNG_sPLT_SUPPORTED
  880. #endif
  881. #ifndef PNG_NO_READ_sRGB
  882. #  define PNG_READ_sRGB_SUPPORTED
  883. #  define PNG_sRGB_SUPPORTED
  884. #endif
  885. #ifndef PNG_NO_READ_tEXt
  886. #  define PNG_READ_tEXt_SUPPORTED
  887. #  define PNG_tEXt_SUPPORTED
  888. #endif
  889. #ifndef PNG_NO_READ_tIME
  890. #  define PNG_READ_tIME_SUPPORTED
  891. #  define PNG_tIME_SUPPORTED
  892. #endif
  893. #ifndef PNG_NO_READ_tRNS
  894. #  define PNG_READ_tRNS_SUPPORTED
  895. #  define PNG_tRNS_SUPPORTED
  896. #endif
  897. #ifndef PNG_NO_READ_zTXt
  898. #  define PNG_READ_zTXt_SUPPORTED
  899. #  define PNG_zTXt_SUPPORTED
  900. #endif
  901. #ifndef PNG_NO_READ_OPT_PLTE
  902. #  define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
  903. #endif                      /* optional PLTE chunk in RGB and RGBA images */
  904. #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
  905.     defined(PNG_READ_zTXt_SUPPORTED)
  906. #  define PNG_READ_TEXT_SUPPORTED
  907. #  define PNG_TEXT_SUPPORTED
  908. #endif
  909.  
  910. #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
  911.  
  912. #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
  913. #  ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
  914. #    define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
  915. #  endif
  916. #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
  917. #    define PNG_UNKNOWN_CHUNKS_SUPPORTED
  918. #  endif
  919. #  ifndef PNG_READ_USER_CHUNKS_SUPPORTED
  920. #    define PNG_READ_USER_CHUNKS_SUPPORTED
  921. #  endif
  922. #endif
  923. #ifndef PNG_NO_READ_USER_CHUNKS
  924. #  ifndef PNG_READ_USER_CHUNKS_SUPPORTED
  925. #    define PNG_READ_USER_CHUNKS_SUPPORTED
  926. #  endif
  927. #  ifndef PNG_USER_CHUNKS_SUPPORTED
  928. #    define PNG_USER_CHUNKS_SUPPORTED
  929. #  endif
  930. #endif
  931. #ifndef PNG_NO_HANDLE_AS_UNKNOWN
  932. #  ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
  933. #    define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
  934. #  endif
  935. #endif
  936.  
  937. #ifdef PNG_WRITE_SUPPORTED
  938. #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
  939.  
  940. #ifdef PNG_NO_WRITE_TEXT
  941. #  define PNG_NO_WRITE_iTXt
  942. #  define PNG_NO_WRITE_tEXt
  943. #  define PNG_NO_WRITE_zTXt
  944. #endif
  945. #ifndef PNG_NO_WRITE_bKGD
  946. #  define PNG_WRITE_bKGD_SUPPORTED
  947. #  ifndef PNG_bKGD_SUPPORTED
  948. #    define PNG_bKGD_SUPPORTED
  949. #  endif
  950. #endif
  951. #ifndef PNG_NO_WRITE_cHRM
  952. #  define PNG_WRITE_cHRM_SUPPORTED
  953. #  ifndef PNG_cHRM_SUPPORTED
  954. #    define PNG_cHRM_SUPPORTED
  955. #  endif
  956. #endif
  957. #ifndef PNG_NO_WRITE_gAMA
  958. #  define PNG_WRITE_gAMA_SUPPORTED
  959. #  ifndef PNG_gAMA_SUPPORTED
  960. #    define PNG_gAMA_SUPPORTED
  961. #  endif
  962. #endif
  963. #ifndef PNG_NO_WRITE_hIST
  964. #  define PNG_WRITE_hIST_SUPPORTED
  965. #  ifndef PNG_hIST_SUPPORTED
  966. #    define PNG_hIST_SUPPORTED
  967. #  endif
  968. #endif
  969. #ifndef PNG_NO_WRITE_iCCP
  970. #  define PNG_WRITE_iCCP_SUPPORTED
  971. #  ifndef PNG_iCCP_SUPPORTED
  972. #    define PNG_iCCP_SUPPORTED
  973. #  endif
  974. #endif
  975. #ifndef PNG_NO_WRITE_iTXt
  976. #  ifndef PNG_WRITE_iTXt_SUPPORTED
  977. #    define PNG_WRITE_iTXt_SUPPORTED
  978. #  endif
  979. #  ifndef PNG_iTXt_SUPPORTED
  980. #    define PNG_iTXt_SUPPORTED
  981. #  endif
  982. #endif
  983. #ifndef PNG_NO_WRITE_oFFs
  984. #  define PNG_WRITE_oFFs_SUPPORTED
  985. #  ifndef PNG_oFFs_SUPPORTED
  986. #    define PNG_oFFs_SUPPORTED
  987. #  endif
  988. #endif
  989. #ifndef PNG_NO_WRITE_pCAL
  990. #  define PNG_WRITE_pCAL_SUPPORTED
  991. #  ifndef PNG_pCAL_SUPPORTED
  992. #    define PNG_pCAL_SUPPORTED
  993. #  endif
  994. #endif
  995. #ifndef PNG_NO_WRITE_sCAL
  996. #  define PNG_WRITE_sCAL_SUPPORTED
  997. #  ifndef PNG_sCAL_SUPPORTED
  998. #    define PNG_sCAL_SUPPORTED
  999. #  endif
  1000. #endif
  1001. #ifndef PNG_NO_WRITE_pHYs
  1002. #  define PNG_WRITE_pHYs_SUPPORTED
  1003. #  ifndef PNG_pHYs_SUPPORTED
  1004. #    define PNG_pHYs_SUPPORTED
  1005. #  endif
  1006. #endif
  1007. #ifndef PNG_NO_WRITE_sBIT
  1008. #  define PNG_WRITE_sBIT_SUPPORTED
  1009. #  ifndef PNG_sBIT_SUPPORTED
  1010. #    define PNG_sBIT_SUPPORTED
  1011. #  endif
  1012. #endif
  1013. #ifndef PNG_NO_WRITE_sPLT
  1014. #  define PNG_WRITE_sPLT_SUPPORTED
  1015. #  ifndef PNG_sPLT_SUPPORTED
  1016. #    define PNG_sPLT_SUPPORTED
  1017. #  endif
  1018. #endif
  1019. #ifndef PNG_NO_WRITE_sRGB
  1020. #  define PNG_WRITE_sRGB_SUPPORTED
  1021. #  ifndef PNG_sRGB_SUPPORTED
  1022. #    define PNG_sRGB_SUPPORTED
  1023. #  endif
  1024. #endif
  1025. #ifndef PNG_NO_WRITE_tEXt
  1026. #  define PNG_WRITE_tEXt_SUPPORTED
  1027. #  ifndef PNG_tEXt_SUPPORTED
  1028. #    define PNG_tEXt_SUPPORTED
  1029. #  endif
  1030. #endif
  1031. #ifndef PNG_NO_WRITE_tIME
  1032. #  define PNG_WRITE_tIME_SUPPORTED
  1033. #  ifndef PNG_tIME_SUPPORTED
  1034. #    define PNG_tIME_SUPPORTED
  1035. #  endif
  1036. #endif
  1037. #ifndef PNG_NO_WRITE_tRNS
  1038. #  define PNG_WRITE_tRNS_SUPPORTED
  1039. #  ifndef PNG_tRNS_SUPPORTED
  1040. #    define PNG_tRNS_SUPPORTED
  1041. #  endif
  1042. #endif
  1043. #ifndef PNG_NO_WRITE_zTXt
  1044. #  define PNG_WRITE_zTXt_SUPPORTED
  1045. #  ifndef PNG_zTXt_SUPPORTED
  1046. #    define PNG_zTXt_SUPPORTED
  1047. #  endif
  1048. #endif
  1049. #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
  1050.     defined(PNG_WRITE_zTXt_SUPPORTED)
  1051. #  define PNG_WRITE_TEXT_SUPPORTED
  1052. #  ifndef PNG_TEXT_SUPPORTED
  1053. #    define PNG_TEXT_SUPPORTED
  1054. #  endif
  1055. #endif
  1056.  
  1057. #ifdef PNG_WRITE_tIME_SUPPORTED
  1058. #  ifndef PNG_NO_CONVERT_tIME
  1059. #    ifndef _WIN32_WCE
  1060. /*   The "tm" structure is not supported on WindowsCE */
  1061. #      ifndef PNG_CONVERT_tIME_SUPPORTED
  1062. #        define PNG_CONVERT_tIME_SUPPORTED
  1063. #      endif
  1064. #   endif
  1065. #  endif
  1066. #endif
  1067.  
  1068. #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
  1069.  
  1070. #ifndef PNG_NO_WRITE_FILTER
  1071. #  ifndef PNG_WRITE_FILTER_SUPPORTED
  1072. #    define PNG_WRITE_FILTER_SUPPORTED
  1073. #  endif
  1074. #endif
  1075.  
  1076. #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
  1077. #  define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
  1078. #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
  1079. #    define PNG_UNKNOWN_CHUNKS_SUPPORTED
  1080. #  endif
  1081. #endif
  1082. #ifndef PNG_NO_HANDLE_AS_UNKNOWN
  1083. #  ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
  1084. #    define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
  1085. #  endif
  1086. #endif
  1087. #endif /* PNG_WRITE_SUPPORTED */
  1088.  
  1089. /* Turn this off to disable png_read_png() and
  1090.  * png_write_png() and leave the row_pointers member
  1091.  * out of the info structure.
  1092.  */
  1093. #ifndef PNG_NO_INFO_IMAGE
  1094. #  define PNG_INFO_IMAGE_SUPPORTED
  1095. #endif
  1096.  
  1097. /* Need the time information for converting tIME chunks */
  1098. #ifdef PNG_CONVERT_tIME_SUPPORTED
  1099.      /* "time.h" functions are not supported on WindowsCE */
  1100. #    include <time.h>
  1101. #endif
  1102.  
  1103. /* Some typedefs to get us started.  These should be safe on most of the
  1104.  * common platforms.  The typedefs should be at least as large as the
  1105.  * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
  1106.  * don't have to be exactly that size.  Some compilers dislike passing
  1107.  * unsigned shorts as function parameters, so you may be better off using
  1108.  * unsigned int for png_uint_16.
  1109.  */
  1110.  
  1111. #if defined(INT_MAX) && (INT_MAX > 0x7ffffffeL)
  1112. typedef unsigned int png_uint_32;
  1113. typedef int png_int_32;
  1114. #else
  1115. typedef unsigned long png_uint_32;
  1116. typedef long png_int_32;
  1117. #endif
  1118. typedef unsigned short png_uint_16;
  1119. typedef short png_int_16;
  1120. typedef unsigned char png_byte;
  1121.  
  1122. #ifdef PNG_NO_SIZE_T
  1123.    typedef unsigned int png_size_t;
  1124. #else
  1125.    typedef size_t png_size_t;
  1126. #endif
  1127. #define png_sizeof(x) (sizeof (x))
  1128.  
  1129. /* The following is needed for medium model support.  It cannot be in the
  1130.  * pngpriv.h header.  Needs modification for other compilers besides
  1131.  * MSC.  Model independent support declares all arrays and pointers to be
  1132.  * large using the far keyword.  The zlib version used must also support
  1133.  * model independent data.  As of version zlib 1.0.4, the necessary changes
  1134.  * have been made in zlib.  The USE_FAR_KEYWORD define triggers other
  1135.  * changes that are needed. (Tim Wegner)
  1136.  */
  1137.  
  1138. /* Separate compiler dependencies (problem here is that zlib.h always
  1139.  * defines FAR. (SJT)
  1140.  */
  1141. #ifdef __BORLANDC__
  1142. #  if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
  1143. #    define LDATA 1
  1144. #  else
  1145. #    define LDATA 0
  1146. #  endif
  1147.    /* GRR:  why is Cygwin in here?  Cygwin is not Borland C... */
  1148. #  if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
  1149. #    define PNG_MAX_MALLOC_64K
  1150. #    if (LDATA != 1)
  1151. #      ifndef FAR
  1152. #        define FAR __far
  1153. #      endif
  1154. #      define USE_FAR_KEYWORD
  1155. #    endif   /* LDATA != 1 */
  1156.      /* Possibly useful for moving data out of default segment.
  1157.       * Uncomment it if you want. Could also define FARDATA as
  1158.       * const if your compiler supports it. (SJT)
  1159. #    define FARDATA FAR
  1160.       */
  1161. #  endif  /* __WIN32__, __FLAT__, __CYGWIN__ */
  1162. #endif   /* __BORLANDC__ */
  1163.  
  1164.  
  1165. /* Suggest testing for specific compiler first before testing for
  1166.  * FAR.  The Watcom compiler defines both __MEDIUM__ and M_I86MM,
  1167.  * making reliance oncertain keywords suspect. (SJT)
  1168.  */
  1169.  
  1170. /* MSC Medium model */
  1171. #ifdef FAR
  1172. #  ifdef M_I86MM
  1173. #    define USE_FAR_KEYWORD
  1174. #    define FARDATA FAR
  1175. #    include <dos.h>
  1176. #  endif
  1177. #endif
  1178.  
  1179. /* SJT: default case */
  1180. #ifndef FAR
  1181. #  define FAR
  1182. #endif
  1183.  
  1184. /* At this point FAR is always defined */
  1185. #ifndef FARDATA
  1186. #  define FARDATA
  1187. #endif
  1188.  
  1189. /* Typedef for floating-point numbers that are converted
  1190.    to fixed-point with a multiple of 100,000, e.g., int_gamma */
  1191. typedef png_int_32 png_fixed_point;
  1192.  
  1193. /* Add typedefs for pointers */
  1194. typedef void            FAR * png_voidp;
  1195. typedef png_byte        FAR * png_bytep;
  1196. typedef png_uint_32     FAR * png_uint_32p;
  1197. typedef png_int_32      FAR * png_int_32p;
  1198. typedef png_uint_16     FAR * png_uint_16p;
  1199. typedef png_int_16      FAR * png_int_16p;
  1200. typedef PNG_CONST char  FAR * png_const_charp;
  1201. typedef char            FAR * png_charp;
  1202. typedef png_fixed_point FAR * png_fixed_point_p;
  1203.  
  1204. #ifndef PNG_NO_STDIO
  1205. typedef FILE                * png_FILE_p;
  1206. #endif
  1207.  
  1208. #ifdef PNG_FLOATING_POINT_SUPPORTED
  1209. typedef double          FAR * png_doublep;
  1210. #endif
  1211.  
  1212. /* Pointers to pointers; i.e. arrays */
  1213. typedef png_byte        FAR * FAR * png_bytepp;
  1214. typedef png_uint_32     FAR * FAR * png_uint_32pp;
  1215. typedef png_int_32      FAR * FAR * png_int_32pp;
  1216. typedef png_uint_16     FAR * FAR * png_uint_16pp;
  1217. typedef png_int_16      FAR * FAR * png_int_16pp;
  1218. typedef PNG_CONST char  FAR * FAR * png_const_charpp;
  1219. typedef char            FAR * FAR * png_charpp;
  1220. typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
  1221. #ifdef PNG_FLOATING_POINT_SUPPORTED
  1222. typedef double          FAR * FAR * png_doublepp;
  1223. #endif
  1224.  
  1225. /* Pointers to pointers to pointers; i.e., pointer to array */
  1226. typedef char            FAR * FAR * FAR * png_charppp;
  1227.  
  1228. /* Define PNG_BUILD_DLL if the module being built is a Windows
  1229.  * LIBPNG DLL.
  1230.  *
  1231.  * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
  1232.  * It is equivalent to Microsoft predefined macro _DLL that is
  1233.  * automatically defined when you compile using the share
  1234.  * version of the CRT (C Run-Time library)
  1235.  *
  1236.  * The cygwin mods make this behavior a little different:
  1237.  * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
  1238.  * Define PNG_STATIC if you are building a static library for use with cygwin,
  1239.  *   -or- if you are building an application that you want to link to the
  1240.  *   static library.
  1241.  * PNG_USE_DLL is defined by default (no user action needed) unless one of
  1242.  *   the other flags is defined.
  1243.  */
  1244.  
  1245. #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
  1246. #  define PNG_DLL
  1247. #endif
  1248.  
  1249. /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
  1250.  * you may get warnings regarding the linkage of png_zalloc and png_zfree.
  1251.  * Don't ignore those warnings; you must also reset the default calling
  1252.  * convention in your compiler to match your PNGAPI, and you must build
  1253.  * zlib and your applications the same way you build libpng.
  1254.  */
  1255.  
  1256. #ifdef __CYGWIN__
  1257. #  undef PNGAPI
  1258. #  define PNGAPI __cdecl
  1259. #  undef PNG_IMPEXP
  1260. #  define PNG_IMPEXP
  1261. #endif
  1262.  
  1263. #ifdef __WATCOMC__
  1264. #  ifndef PNGAPI
  1265. #    define PNGAPI
  1266. #  endif
  1267. #endif
  1268.  
  1269. #if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
  1270. #  ifndef PNG_NO_MODULEDEF
  1271. #    define PNG_NO_MODULEDEF
  1272. #  endif
  1273. #endif
  1274.  
  1275. #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
  1276. #  define PNG_IMPEXP
  1277. #endif
  1278.  
  1279. #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
  1280.     (( defined(_Windows) || defined(_WINDOWS) || \
  1281.        defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
  1282.  
  1283. #  ifndef PNGAPI
  1284. #     if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
  1285. #        define PNGAPI __cdecl
  1286. #     else
  1287. #        define PNGAPI _cdecl
  1288. #     endif
  1289. #  endif
  1290.  
  1291. #  if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
  1292.        0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
  1293. #     define PNG_IMPEXP
  1294. #  endif
  1295.  
  1296. #  ifndef PNG_IMPEXP
  1297.  
  1298. #    define PNG_EXPORT_TYPE1(type,symbol)  PNG_IMPEXP type PNGAPI symbol
  1299. #    define PNG_EXPORT_TYPE2(type,symbol)  type PNG_IMPEXP PNGAPI symbol
  1300.  
  1301.      /* Borland/Microsoft */
  1302. #    if defined(_MSC_VER) || defined(__BORLANDC__)
  1303. #      if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
  1304. #         define PNG_EXPORT PNG_EXPORT_TYPE1
  1305. #      else
  1306. #         define PNG_EXPORT PNG_EXPORT_TYPE2
  1307. #         ifdef PNG_BUILD_DLL
  1308. #            define PNG_IMPEXP __export
  1309. #         else
  1310. #            define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in VC++ */
  1311. #         endif                              /* Exists in Borland C++ for
  1312.                                                 C++ classes (== huge) */
  1313. #      endif
  1314. #    endif
  1315.  
  1316. #    ifndef PNG_IMPEXP
  1317. #      ifdef PNG_BUILD_DLL
  1318. #        define PNG_IMPEXP __declspec(dllexport)
  1319. #      else
  1320. #        define PNG_IMPEXP __declspec(dllimport)
  1321. #      endif
  1322. #    endif
  1323. #  endif  /* PNG_IMPEXP */
  1324. #else /* !(DLL || non-cygwin WINDOWS) */
  1325. #   if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
  1326. #     ifndef PNGAPI
  1327. #       define PNGAPI _System
  1328. #     endif
  1329. #   else
  1330. #     if 0 /* ... other platforms, with other meanings */
  1331. #     endif
  1332. #   endif
  1333. #endif
  1334.  
  1335. #ifndef PNGAPI
  1336. #  define PNGAPI
  1337. #endif
  1338. #ifndef PNG_IMPEXP
  1339. #  define PNG_IMPEXP
  1340. #endif
  1341.  
  1342. #ifdef PNG_BUILDSYMS
  1343. #  ifndef PNG_EXPORT
  1344. #    define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
  1345. #  endif
  1346. #endif
  1347.  
  1348. #ifndef PNG_EXPORT
  1349. #  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
  1350. #endif
  1351.  
  1352. #define PNG_USE_LOCAL_ARRAYS /* Not used in libpng, defined for legacy apps */
  1353.  
  1354. /* Support for compiler specific function attributes.  These are used
  1355.  * so that where compiler support is available incorrect use of API
  1356.  * functions in png.h will generate compiler warnings.
  1357.  *
  1358.  * Added at libpng-1.2.41.
  1359.  */
  1360.  
  1361. #ifndef PNG_NO_PEDANTIC_WARNINGS
  1362. #  ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
  1363. #    define PNG_PEDANTIC_WARNINGS_SUPPORTED
  1364. #  endif
  1365. #endif
  1366.  
  1367. #ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
  1368. /* Support for compiler specific function attributes.  These are used
  1369.  * so that where compiler support is available incorrect use of API
  1370.  * functions in png.h will generate compiler warnings.  Added at libpng
  1371.  * version 1.2.41.
  1372.  */
  1373. #  ifdef __GNUC__
  1374. #    ifndef PNG_USE_RESULT
  1375. #      define PNG_USE_RESULT __attribute__((__warn_unused_result__))
  1376. #    endif
  1377. #    ifndef PNG_NORETURN
  1378. #      define PNG_NORETURN   __attribute__((__noreturn__))
  1379. #    endif
  1380. #    ifndef PNG_ALLOCATED
  1381. #      define PNG_ALLOCATED  __attribute__((__malloc__))
  1382. #    endif
  1383.  
  1384.     /* This specifically protects structure members that should only be
  1385.      * accessed from within the library, therefore should be empty during
  1386.      * a library build.
  1387.      */
  1388. #    ifndef PNG_DEPRECATED
  1389. #      define PNG_DEPRECATED __attribute__((__deprecated__))
  1390. #    endif
  1391. #    ifndef PNG_DEPSTRUCT
  1392. #      define PNG_DEPSTRUCT  __attribute__((__deprecated__))
  1393. #    endif
  1394. #    ifndef PNG_PRIVATE
  1395. #      if 0 /* Doesn't work so we use deprecated instead*/
  1396. #        define PNG_PRIVATE \
  1397.           __attribute__((warning("This function is not exported by libpng.")))
  1398. #      else
  1399. #        define PNG_PRIVATE \
  1400.           __attribute__((__deprecated__))
  1401. #      endif
  1402. #    endif /* PNG_PRIVATE */
  1403. #  endif /* __GNUC__ */
  1404. #endif /* PNG_PEDANTIC_WARNINGS */
  1405.  
  1406. #ifndef PNG_DEPRECATED
  1407. #  define PNG_DEPRECATED  /* Use of this function is deprecated */
  1408. #endif
  1409. #ifndef PNG_USE_RESULT
  1410. #  define PNG_USE_RESULT  /* The result of this function must be checked */
  1411. #endif
  1412. #ifndef PNG_NORETURN
  1413. #  define PNG_NORETURN    /* This function does not return */
  1414. #endif
  1415. #ifndef PNG_ALLOCATED
  1416. #  define PNG_ALLOCATED   /* The result of the function is new memory */
  1417. #endif
  1418. #ifndef PNG_DEPSTRUCT
  1419. #  define PNG_DEPSTRUCT   /* Access to this struct member is deprecated */
  1420. #endif
  1421. #ifndef PNG_PRIVATE
  1422. #  define PNG_PRIVATE     /* This is a private libpng function */
  1423. #endif
  1424.  
  1425. /* Users may want to use these so they are not private.  Any library
  1426.  * functions that are passed far data must be model-independent.
  1427.  */
  1428.  
  1429. /* memory model/platform independent fns */
  1430. #ifndef PNG_ABORT
  1431. #  if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_))
  1432. #     define PNG_ABORT() ExitProcess(0)
  1433. #  else
  1434. #     define PNG_ABORT() abort()
  1435. #  endif
  1436. #endif
  1437.  
  1438. #ifdef USE_FAR_KEYWORD
  1439. /* Use this to make far-to-near assignments */
  1440. #  define CHECK   1
  1441. #  define NOCHECK 0
  1442. #  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
  1443. #  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
  1444. #  define png_strcpy  _fstrcpy
  1445. #  define png_strncpy _fstrncpy   /* Added to v 1.2.6 */
  1446. #  define png_strlen  _fstrlen
  1447. #  define png_memcmp  _fmemcmp    /* SJT: added */
  1448. #  define png_memcpy  _fmemcpy
  1449. #  define png_memset  _fmemset
  1450. #  define png_sprintf sprintf
  1451. #else
  1452. #  if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_))
  1453. #    /* Favor Windows over C runtime fns */
  1454. #    define CVT_PTR(ptr)         (ptr)
  1455. #    define CVT_PTR_NOCHECK(ptr) (ptr)
  1456. #    define png_strcpy  lstrcpyA
  1457. #    define png_strncpy lstrcpynA
  1458. #    define png_strlen  lstrlenA
  1459. #    define png_memcmp  memcmp
  1460. #    define png_memcpy  CopyMemory
  1461. #    define png_memset  memset
  1462. #    define png_sprintf wsprintfA
  1463. #  else
  1464. #    define CVT_PTR(ptr)         (ptr)
  1465. #    define CVT_PTR_NOCHECK(ptr) (ptr)
  1466. #    define png_strcpy  strcpy
  1467. #    define png_strncpy strncpy     /* Added to v 1.2.6 */
  1468. #    define png_strlen  strlen
  1469. #    define png_memcmp  memcmp      /* SJT: added */
  1470. #    define png_memcpy  memcpy
  1471. #    define png_memset  memset
  1472. #    define png_sprintf sprintf
  1473. #  endif
  1474. #endif
  1475.  
  1476. #ifndef PNG_NO_SNPRINTF
  1477. #  ifdef _MSC_VER
  1478. #    define png_snprintf _snprintf   /* Added to v 1.2.19 */
  1479. #    define png_snprintf2 _snprintf
  1480. #    define png_snprintf6 _snprintf
  1481. #  else
  1482. #    define png_snprintf snprintf   /* Added to v 1.2.19 */
  1483. #    define png_snprintf2 snprintf
  1484. #    define png_snprintf6 snprintf
  1485. #  endif
  1486. #else
  1487.    /* You don't have or don't want to use snprintf().  Caution: Using
  1488.     * sprintf instead of snprintf exposes your application to accidental
  1489.     * or malevolent buffer overflows.  If you don't have snprintf()
  1490.     * as a general rule you should provide one (you can get one from
  1491.     * Portable OpenSSH).
  1492.     */
  1493. #  define png_snprintf(s1,n,fmt,x1) png_sprintf(s1,fmt,x1)
  1494. #  define png_snprintf2(s1,n,fmt,x1,x2) png_sprintf(s1,fmt,x1,x2)
  1495. #  define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
  1496.       png_sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
  1497. #endif
  1498.  
  1499. /* png_alloc_size_t is guaranteed to be no smaller than png_size_t,
  1500.  * and no smaller than png_uint_32.  Casts from png_size_t or png_uint_32
  1501.  * to png_alloc_size_t are not necessary; in fact, it is recommended
  1502.  * not to use them at all so that the compiler can complain when something
  1503.  * turns out to be problematic.
  1504.  * Casts in the other direction (from png_alloc_size_t to png_size_t or
  1505.  * png_uint_32) should be explicitly applied; however, we do not expect
  1506.  * to encounter practical situations that require such conversions.
  1507.  */
  1508. #if defined(__TURBOC__) && !defined(__FLAT__)
  1509.    typedef unsigned long png_alloc_size_t;
  1510. #else
  1511. #  if defined(_MSC_VER) && defined(MAXSEG_64K)
  1512.      typedef unsigned long    png_alloc_size_t;
  1513. #  else
  1514.      /* This is an attempt to detect an old Windows system where (int) is
  1515.       * actually 16 bits, in that case png_malloc must have an argument with a
  1516.       * bigger size to accomodate the requirements of the library.
  1517.       */
  1518. #    if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) && \
  1519.         (!defined(INT_MAX) || INT_MAX <= 0x7ffffffeL)
  1520.        typedef DWORD         png_alloc_size_t;
  1521. #    else
  1522.        typedef png_size_t    png_alloc_size_t;
  1523. #    endif
  1524. #  endif
  1525. #endif
  1526. /* End of memory model/platform independent support */
  1527.  
  1528. /* Just a little check that someone hasn't tried to define something
  1529.  * contradictory.
  1530.  */
  1531. #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
  1532. #  undef PNG_ZBUF_SIZE
  1533. #  define PNG_ZBUF_SIZE 65536L
  1534. #endif
  1535.  
  1536.  
  1537. /* Added at libpng-1.2.8 */
  1538. #endif /* PNG_VERSION_INFO_ONLY */
  1539.  
  1540. #endif /* PNGCONF_H */
  1541.