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The JUCE cross-platform C++ framework, with DISTRHO/KXStudio specific changes
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JUCE/modules/juce_graphics/image_formats/pnglib/pngconf.h

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  1. 

  2. /* pngconf.h - machine configurable file for libpng

  3.  *

  4.  * libpng version 1.2.21 - October 4, 2007

  5.  * For conditions of distribution and use, see copyright notice in png.h

  6.  * Copyright (c) 1998-2007 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. 

  11. /* Any machine specific code is near the front of this file, so if you

  12.  * are configuring libpng for a machine, you may want to read the section

  13.  * starting here down to where it starts to typedef png_color, png_text,

  14.  * and png_info.

  15.  */

  16. 

  17. #ifndef PNGCONF_H

  18. #define PNGCONF_H

  19. 

  20. #define PNG_1_2_X

  21. 

  22. //==============================================================================

  23. // These are some Juce config settings that should remove any unnecessary code bloat..

  24. 

  25. #define PNG_NO_STDIO 1

  26. #define PNG_DEBUG 0

  27. #define PNG_NO_WARNINGS 1

  28. #define PNG_NO_ERROR_TEXT 1

  29. #define PNG_NO_ERROR_NUMBERS 1

  30. #define PNG_NO_USER_MEM 1

  31. #define PNG_NO_READ_iCCP 1

  32. #define PNG_NO_READ_UNKNOWN_CHUNKS 1

  33. #define PNG_NO_READ_USER_CHUNKS 1

  34. #define PNG_NO_READ_iTXt 1

  35. #define PNG_NO_READ_sCAL 1

  36. #define PNG_NO_READ_sPLT 1

  37. 

  38. #define png_error(a, b) png_err(a)

  39. #define png_warning(a, b)

  40. #define png_chunk_error(a, b) png_err(a)

  41. #define png_chunk_warning(a, b)

  42. 

  43. //==============================================================================

  44. 

  45. /*

  46.  * PNG_USER_CONFIG has to be defined on the compiler command line. This

  47.  * includes the resource compiler for Windows DLL configurations.

  48.  */

  49. #ifdef PNG_USER_CONFIG

  50. #  ifndef PNG_USER_PRIVATEBUILD

  51. #    define PNG_USER_PRIVATEBUILD

  52. #  endif

  53. #include "pngusr.h"

  54. #endif

  55. 

  56. /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */

  57. #ifdef PNG_CONFIGURE_LIBPNG

  58. #ifdef HAVE_CONFIG_H

  59. #include "config.h"

  60. #endif

  61. #endif

  62. 

  63. /*

  64.  * Added at libpng-1.2.8

  65.  *

  66.  * If you create a private DLL you need to define in "pngusr.h" the followings:

  67.  * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of

  68.  *        the DLL was built>

  69.  *  e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."

  70.  * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to

  71.  *        distinguish your DLL from those of the official release. These

  72.  *        correspond to the trailing letters that come after the version

  73.  *        number and must match your private DLL name>

  74.  *  e.g. // private DLL "libpng13gx.dll"

  75.  *       #define PNG_USER_DLLFNAME_POSTFIX "gx"

  76.  *

  77.  * The following macros are also at your disposal if you want to complete the

  78.  * DLL VERSIONINFO structure.

  79.  * - PNG_USER_VERSIONINFO_COMMENTS

  80.  * - PNG_USER_VERSIONINFO_COMPANYNAME

  81.  * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS

  82.  */

  83. 

  84. #ifdef __STDC__

  85. #ifdef SPECIALBUILD

  86. #  pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\

  87.  are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")

  88. #endif

  89. 

  90. #ifdef PRIVATEBUILD

  91. # pragma message("PRIVATEBUILD is deprecated.\

  92.  Use PNG_USER_PRIVATEBUILD instead.")

  93. # define PNG_USER_PRIVATEBUILD PRIVATEBUILD

  94. #endif

  95. #endif /* __STDC__ */

  96. 

  97. #ifndef PNG_VERSION_INFO_ONLY

  98. 

  99. /* End of material added to libpng-1.2.8 */

  100. 

  101. /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble

  102.    Restored at libpng-1.2.21 */

  103. #    define PNG_WARN_UNINITIALIZED_ROW 1

  104. /* End of material added at libpng-1.2.19/1.2.21 */

  105. 

  106. /* This is the size of the compression buffer, and thus the size of

  107.  * an IDAT chunk.  Make this whatever size you feel is best for your

  108.  * machine.  One of these will be allocated per png_struct.  When this

  109.  * is full, it writes the data to the disk, and does some other

  110.  * calculations.  Making this an extremely small size will slow

  111.  * the library down, but you may want to experiment to determine

  112.  * where it becomes significant, if you are concerned with memory

  113.  * usage.  Note that zlib allocates at least 32Kb also.  For readers,

  114.  * this describes the size of the buffer available to read the data in.

  115.  * Unless this gets smaller than the size of a row (compressed),

  116.  * it should not make much difference how big this is.

  117.  */

  118. 

  119. #ifndef PNG_ZBUF_SIZE

  120. #  define PNG_ZBUF_SIZE 8192

  121. #endif

  122. 

  123. /* Enable if you want a write-only libpng */

  124. 

  125. #ifndef PNG_NO_READ_SUPPORTED

  126. #  define PNG_READ_SUPPORTED

  127. #endif

  128. 

  129. /* Enable if you want a read-only libpng */

  130. 

  131. #ifndef PNG_NO_WRITE_SUPPORTED

  132. #  define PNG_WRITE_SUPPORTED

  133. #endif

  134. 

  135. /* Enabled by default in 1.2.0.  You can disable this if you don't need to

  136.    support PNGs that are embedded in MNG datastreams */

  137. #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)

  138. #  ifndef PNG_MNG_FEATURES_SUPPORTED

  139. #    define PNG_MNG_FEATURES_SUPPORTED

  140. #  endif

  141. #endif

  142. 

  143. #ifndef PNG_NO_FLOATING_POINT_SUPPORTED

  144. #  ifndef PNG_FLOATING_POINT_SUPPORTED

  145. #    define PNG_FLOATING_POINT_SUPPORTED

  146. #  endif

  147. #endif

  148. 

  149. /* If you are running on a machine where you cannot allocate more

  150.  * than 64K of memory at once, uncomment this.  While libpng will not

  151.  * normally need that much memory in a chunk (unless you load up a very

  152.  * large file), zlib needs to know how big of a chunk it can use, and

  153.  * libpng thus makes sure to check any memory allocation to verify it

  154.  * will fit into memory.

  155. #define PNG_MAX_MALLOC_64K

  156.  */

  157. #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)

  158. #  define PNG_MAX_MALLOC_64K

  159. #endif

  160. 

  161. /* Special munging to support doing things the 'cygwin' way:

  162.  * 'Normal' png-on-win32 defines/defaults:

  163.  *   PNG_BUILD_DLL -- building dll

  164.  *   PNG_USE_DLL   -- building an application, linking to dll

  165.  *   (no define)   -- building static library, or building an

  166.  *                    application and linking to the static lib

  167.  * 'Cygwin' defines/defaults:

  168.  *   PNG_BUILD_DLL -- (ignored) building the dll

  169.  *   (no define)   -- (ignored) building an application, linking to the dll

  170.  *   PNG_STATIC    -- (ignored) building the static lib, or building an

  171.  *                    application that links to the static lib.

  172.  *   ALL_STATIC    -- (ignored) building various static libs, or building an

  173.  *                    application that links to the static libs.

  174.  * Thus,

  175.  * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and

  176.  * this bit of #ifdefs will define the 'correct' config variables based on

  177.  * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but

  178.  * unnecessary.

  179.  *

  180.  * Also, the precedence order is:

  181.  *   ALL_STATIC (since we can't #undef something outside our namespace)

  182.  *   PNG_BUILD_DLL

  183.  *   PNG_STATIC

  184.  *   (nothing) == PNG_USE_DLL

  185.  *

  186.  * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent

  187.  *   of auto-import in binutils, we no longer need to worry about

  188.  *   __declspec(dllexport) / __declspec(dllimport) and friends.  Therefore,

  189.  *   we don't need to worry about PNG_STATIC or ALL_STATIC when it comes

  190.  *   to __declspec() stuff.  However, we DO need to worry about

  191.  *   PNG_BUILD_DLL and PNG_STATIC because those change some defaults

  192.  *   such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.

  193.  */

  194. #if defined(__CYGWIN__)

  195. #  if defined(ALL_STATIC)

  196. #    if defined(PNG_BUILD_DLL)

  197. #      undef PNG_BUILD_DLL

  198. #    endif

  199. #    if defined(PNG_USE_DLL)

  200. #      undef PNG_USE_DLL

  201. #    endif

  202. #    if defined(PNG_DLL)

  203. #      undef PNG_DLL

  204. #    endif

  205. #    if !defined(PNG_STATIC)

  206. #      define PNG_STATIC

  207. #    endif

  208. #  else

  209. #    if defined (PNG_BUILD_DLL)

  210. #      if defined(PNG_STATIC)

  211. #        undef PNG_STATIC

  212. #      endif

  213. #      if defined(PNG_USE_DLL)

  214. #        undef PNG_USE_DLL

  215. #      endif

  216. #      if !defined(PNG_DLL)

  217. #        define PNG_DLL

  218. #      endif

  219. #    else

  220. #      if defined(PNG_STATIC)

  221. #        if defined(PNG_USE_DLL)

  222. #          undef PNG_USE_DLL

  223. #        endif

  224. #        if defined(PNG_DLL)

  225. #          undef PNG_DLL

  226. #        endif

  227. #      else

  228. #        if !defined(PNG_USE_DLL)

  229. #          define PNG_USE_DLL

  230. #        endif

  231. #        if !defined(PNG_DLL)

  232. #          define PNG_DLL

  233. #        endif

  234. #      endif

  235. #    endif

  236. #  endif

  237. #endif

  238. 

  239. /* This protects us against compilers that run on a windowing system

  240.  * and thus don't have or would rather us not use the stdio types:

  241.  * stdin, stdout, and stderr.  The only one currently used is stderr

  242.  * in png_error() and png_warning().  #defining PNG_NO_CONSOLE_IO will

  243.  * prevent these from being compiled and used. #defining PNG_NO_STDIO

  244.  * will also prevent these, plus will prevent the entire set of stdio

  245.  * macros and functions (FILE *, printf, etc.) from being compiled and used,

  246.  * unless (PNG_DEBUG > 0) has been #defined.

  247.  *

  248.  * #define PNG_NO_CONSOLE_IO

  249.  * #define PNG_NO_STDIO

  250.  */

  251. 

  252. #if defined(_WIN32_WCE)

  253. #  include <windows.h>

  254.    /* Console I/O functions are not supported on WindowsCE */

  255. #  define PNG_NO_CONSOLE_IO

  256. #  ifdef PNG_DEBUG

  257. #    undef PNG_DEBUG

  258. #  endif

  259. #endif

  260. 

  261. #ifdef PNG_BUILD_DLL

  262. #  ifndef PNG_CONSOLE_IO_SUPPORTED

  263. #    ifndef PNG_NO_CONSOLE_IO

  264. #      define PNG_NO_CONSOLE_IO

  265. #    endif

  266. #  endif

  267. #endif

  268. 

  269. #  ifdef PNG_NO_STDIO

  270. #    ifndef PNG_NO_CONSOLE_IO

  271. #      define PNG_NO_CONSOLE_IO

  272. #    endif

  273. #    ifdef PNG_DEBUG

  274. #      if (PNG_DEBUG > 0)

  275. #        include <stdio.h>

  276. #      endif

  277. #    endif

  278. #  else

  279. #    if !defined(_WIN32_WCE)

  280. /* "stdio.h" functions are not supported on WindowsCE */

  281. #      include <stdio.h>

  282. #    endif

  283. #  endif

  284. 

  285. /* This macro protects us against machines that don't have function

  286.  * prototypes (ie K&R style headers).  If your compiler does not handle

  287.  * function prototypes, define this macro and use the included ansi2knr.

  288.  * I've always been able to use _NO_PROTO as the indicator, but you may

  289.  * need to drag the empty declaration out in front of here, or change the

  290.  * ifdef to suit your own needs.

  291.  */

  292. #ifndef PNGARG

  293. 

  294. #ifdef OF /* zlib prototype munger */

  295. #  define PNGARG(arglist) OF(arglist)

  296. #else

  297. 

  298. #ifdef _NO_PROTO

  299. #  define PNGARG(arglist) ()

  300. #  ifndef PNG_TYPECAST_NULL

  301. #     define PNG_TYPECAST_NULL

  302. #  endif

  303. #else

  304. #  define PNGARG(arglist) arglist

  305. #endif /* _NO_PROTO */

  306. 

  307. 

  308. #endif /* OF */

  309. 

  310. #endif /* PNGARG */

  311. 

  312. /* Try to determine if we are compiling on a Mac.  Note that testing for

  313.  * just __MWERKS__ is not good enough, because the Codewarrior is now used

  314.  * on non-Mac platforms.

  315.  */

  316. #ifndef MACOS

  317. #  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \

  318.       defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)

  319. #    define MACOS

  320. #  endif

  321. #endif

  322. 

  323. /* enough people need this for various reasons to include it here */

  324. #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)

  325. #  include <sys/types.h>

  326. #endif

  327. 

  328. #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)

  329. #  define PNG_SETJMP_SUPPORTED

  330. #endif

  331. 

  332. #ifdef PNG_SETJMP_SUPPORTED

  333. /* This is an attempt to force a single setjmp behaviour on Linux.  If

  334.  * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.

  335.  */

  336. 

  337. #  ifdef __linux__

  338. #    ifdef _BSD_SOURCE

  339. #      define PNG_SAVE_BSD_SOURCE

  340. #      undef _BSD_SOURCE

  341. #    endif

  342. #    ifdef _SETJMP_H

  343.      /* If you encounter a compiler error here, see the explanation

  344.       * near the end of INSTALL.

  345.       */

  346.          __png.h__ already includes setjmp.h;

  347.          __dont__ include it again.;

  348. #    endif

  349. #  endif /* __linux__ */

  350. 

  351.    /* include setjmp.h for error handling */

  352. #  include <setjmp.h>

  353. 

  354. #  ifdef __linux__

  355. #    ifdef PNG_SAVE_BSD_SOURCE

  356. #      define _BSD_SOURCE

  357. #      undef PNG_SAVE_BSD_SOURCE

  358. #    endif

  359. #  endif /* __linux__ */

  360. #endif /* PNG_SETJMP_SUPPORTED */

  361. 

  362. #ifdef BSD

  363. #if ! JUCE_MAC

  364. #  include <strings.h>

  365. #endif

  366. #else

  367. #  include <string.h>

  368. #endif

  369. 

  370. /* Other defines for things like memory and the like can go here.  */

  371. #ifdef PNG_INTERNAL

  372. 

  373. #include <stdlib.h>

  374. 

  375. /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which

  376.  * aren't usually used outside the library (as far as I know), so it is

  377.  * debatable if they should be exported at all.  In the future, when it is

  378.  * possible to have run-time registry of chunk-handling functions, some of

  379.  * these will be made available again.

  380. #define PNG_EXTERN extern

  381.  */

  382. #define PNG_EXTERN

  383. 

  384. /* Other defines specific to compilers can go here.  Try to keep

  385.  * them inside an appropriate ifdef/endif pair for portability.

  386.  */

  387. 

  388. #if defined(PNG_FLOATING_POINT_SUPPORTED)

  389. #  if defined(MACOS)

  390.      /* We need to check that <math.h> hasn't already been included earlier

  391.       * as it seems it doesn't agree with <fp.h>, yet we should really use

  392.       * <fp.h> if possible.

  393.       */

  394. #    if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)

  395. #      include <fp.h>

  396. #    endif

  397. #  else

  398. #    include <math.h>

  399. #  endif

  400. #  if defined(_AMIGA) && defined(__SASC) && defined(_M68881)

  401.      /* Amiga SAS/C: We must include builtin FPU functions when compiling using

  402.       * MATH=68881

  403.       */

  404. #    include <m68881.h>

  405. #  endif

  406. #endif

  407. 

  408. /* Codewarrior on NT has linking problems without this. */

  409. #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)

  410. #  define PNG_ALWAYS_EXTERN

  411. #endif

  412. 

  413. /* This provides the non-ANSI (far) memory allocation routines. */

  414. #if defined(__TURBOC__) && defined(__MSDOS__)

  415. #  include <mem.h>

  416. #  include <alloc.h>

  417. #endif

  418. 

  419. /* I have no idea why is this necessary... */

  420. #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \

  421.     defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))

  422. #  include <malloc.h>

  423. #endif

  424. 

  425. /* This controls how fine the dithering gets.  As this allocates

  426.  * a largish chunk of memory (32K), those who are not as concerned

  427.  * with dithering quality can decrease some or all of these.

  428.  */

  429. #ifndef PNG_DITHER_RED_BITS

  430. #  define PNG_DITHER_RED_BITS 5

  431. #endif

  432. #ifndef PNG_DITHER_GREEN_BITS

  433. #  define PNG_DITHER_GREEN_BITS 5

  434. #endif

  435. #ifndef PNG_DITHER_BLUE_BITS

  436. #  define PNG_DITHER_BLUE_BITS 5

  437. #endif

  438. 

  439. /* This controls how fine the gamma correction becomes when you

  440.  * are only interested in 8 bits anyway.  Increasing this value

  441.  * results in more memory being used, and more pow() functions

  442.  * being called to fill in the gamma tables.  Don't set this value

  443.  * less then 8, and even that may not work (I haven't tested it).

  444.  */

  445. 

  446. #ifndef PNG_MAX_GAMMA_8

  447. #  define PNG_MAX_GAMMA_8 11

  448. #endif

  449. 

  450. /* This controls how much a difference in gamma we can tolerate before

  451.  * we actually start doing gamma conversion.

  452.  */

  453. #ifndef PNG_GAMMA_THRESHOLD

  454. #  define PNG_GAMMA_THRESHOLD 0.05

  455. #endif

  456. 

  457. #endif /* PNG_INTERNAL */

  458. 

  459. /* The following uses const char * instead of char * for error

  460.  * and warning message functions, so some compilers won't complain.

  461.  * If you do not want to use const, define PNG_NO_CONST here.

  462.  */

  463. 

  464. #ifndef PNG_NO_CONST

  465. #  define PNG_CONST const

  466. #else

  467. #  define PNG_CONST

  468. #endif

  469. 

  470. /* The following defines give you the ability to remove code from the

  471.  * library that you will not be using.  I wish I could figure out how to

  472.  * automate this, but I can't do that without making it seriously hard

  473.  * on the users.  So if you are not using an ability, change the #define

  474.  * to and #undef, and that part of the library will not be compiled.  If

  475.  * your linker can't find a function, you may want to make sure the

  476.  * ability is defined here.  Some of these depend upon some others being

  477.  * defined.  I haven't figured out all the interactions here, so you may

  478.  * have to experiment awhile to get everything to compile.  If you are

  479.  * creating or using a shared library, you probably shouldn't touch this,

  480.  * as it will affect the size of the structures, and this will cause bad

  481.  * things to happen if the library and/or application ever change.

  482.  */

  483. 

  484. /* Any features you will not be using can be undef'ed here */

  485. 

  486. /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user

  487.  * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS

  488.  * on the compile line, then pick and choose which ones to define without

  489.  * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED

  490.  * if you only want to have a png-compliant reader/writer but don't need

  491.  * any of the extra transformations.  This saves about 80 kbytes in a

  492.  * typical installation of the library. (PNG_NO_* form added in version

  493.  * 1.0.1c, for consistency)

  494.  */

  495. 

  496. /* The size of the png_text structure changed in libpng-1.0.6 when

  497.  * iTXt support was added.  iTXt support was turned off by default through

  498.  * libpng-1.2.x, to support old apps that malloc the png_text structure

  499.  * instead of calling png_set_text() and letting libpng malloc it.  It

  500.  * was turned on by default in libpng-1.3.0.

  501.  */

  502. 

  503. #if defined(PNG_1_0_X) || defined (PNG_1_2_X)

  504. #  ifndef PNG_NO_iTXt_SUPPORTED

  505. #    define PNG_NO_iTXt_SUPPORTED

  506. #  endif

  507. #  ifndef PNG_NO_READ_iTXt

  508. #    define PNG_NO_READ_iTXt

  509. #  endif

  510. #  ifndef PNG_NO_WRITE_iTXt

  511. #    define PNG_NO_WRITE_iTXt

  512. #  endif

  513. #endif

  514. 

  515. #if !defined(PNG_NO_iTXt_SUPPORTED)

  516. #  if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)

  517. #    define PNG_READ_iTXt

  518. #  endif

  519. #  if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)

  520. #    define PNG_WRITE_iTXt

  521. #  endif

  522. #endif

  523. 

  524. /* The following support, added after version 1.0.0, can be turned off here en

  525.  * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility

  526.  * with old applications that require the length of png_struct and png_info

  527.  * to remain unchanged.

  528.  */

  529. 

  530. #ifdef PNG_LEGACY_SUPPORTED

  531. #  define PNG_NO_FREE_ME

  532. #  define PNG_NO_READ_UNKNOWN_CHUNKS

  533. #  define PNG_NO_WRITE_UNKNOWN_CHUNKS

  534. #  define PNG_NO_READ_USER_CHUNKS

  535. #  define PNG_NO_READ_iCCP

  536. #  define PNG_NO_WRITE_iCCP

  537. #  define PNG_NO_READ_iTXt

  538. #  define PNG_NO_WRITE_iTXt

  539. #  define PNG_NO_READ_sCAL

  540. #  define PNG_NO_WRITE_sCAL

  541. #  define PNG_NO_READ_sPLT

  542. #  define PNG_NO_WRITE_sPLT

  543. #  define PNG_NO_INFO_IMAGE

  544. #  define PNG_NO_READ_RGB_TO_GRAY

  545. #  define PNG_NO_READ_USER_TRANSFORM

  546. #  define PNG_NO_WRITE_USER_TRANSFORM

  547. #  define PNG_NO_USER_MEM

  548. #  define PNG_NO_READ_EMPTY_PLTE

  549. #  define PNG_NO_MNG_FEATURES

  550. #  define PNG_NO_FIXED_POINT_SUPPORTED

  551. #endif

  552. 

  553. /* Ignore attempt to turn off both floating and fixed point support */

  554. #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \

  555.     !defined(PNG_NO_FIXED_POINT_SUPPORTED)

  556. #  define PNG_FIXED_POINT_SUPPORTED

  557. #endif

  558. 

  559. #ifndef PNG_NO_FREE_ME

  560. #  define PNG_FREE_ME_SUPPORTED

  561. #endif

  562. 

  563. #if defined(PNG_READ_SUPPORTED)

  564. 

  565. #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \

  566.       !defined(PNG_NO_READ_TRANSFORMS)

  567. #  define PNG_READ_TRANSFORMS_SUPPORTED

  568. #endif

  569. 

  570. #ifdef PNG_READ_TRANSFORMS_SUPPORTED

  571. #  ifndef PNG_NO_READ_EXPAND

  572. #    define PNG_READ_EXPAND_SUPPORTED

  573. #  endif

  574. #  ifndef PNG_NO_READ_SHIFT

  575. #    define PNG_READ_SHIFT_SUPPORTED

  576. #  endif

  577. #  ifndef PNG_NO_READ_PACK

  578. #    define PNG_READ_PACK_SUPPORTED

  579. #  endif

  580. #  ifndef PNG_NO_READ_BGR

  581. #    define PNG_READ_BGR_SUPPORTED

  582. #  endif

  583. #  ifndef PNG_NO_READ_SWAP

  584. #    define PNG_READ_SWAP_SUPPORTED

  585. #  endif

  586. #  ifndef PNG_NO_READ_PACKSWAP

  587. #    define PNG_READ_PACKSWAP_SUPPORTED

  588. #  endif

  589. #  ifndef PNG_NO_READ_INVERT

  590. #    define PNG_READ_INVERT_SUPPORTED

  591. #  endif

  592. #  ifndef PNG_NO_READ_DITHER

  593. #    define PNG_READ_DITHER_SUPPORTED

  594. #  endif

  595. #  ifndef PNG_NO_READ_BACKGROUND

  596. #    define PNG_READ_BACKGROUND_SUPPORTED

  597. #  endif

  598. #  ifndef PNG_NO_READ_16_TO_8

  599. #    define PNG_READ_16_TO_8_SUPPORTED

  600. #  endif

  601. #  ifndef PNG_NO_READ_FILLER

  602. #    define PNG_READ_FILLER_SUPPORTED

  603. #  endif

  604. #  ifndef PNG_NO_READ_GAMMA

  605. #    define PNG_READ_GAMMA_SUPPORTED

  606. #  endif

  607. #  ifndef PNG_NO_READ_GRAY_TO_RGB

  608. #    define PNG_READ_GRAY_TO_RGB_SUPPORTED

  609. #  endif

  610. #  ifndef PNG_NO_READ_SWAP_ALPHA

  611. #    define PNG_READ_SWAP_ALPHA_SUPPORTED

  612. #  endif

  613. #  ifndef PNG_NO_READ_INVERT_ALPHA

  614. #    define PNG_READ_INVERT_ALPHA_SUPPORTED

  615. #  endif

  616. #  ifndef PNG_NO_READ_STRIP_ALPHA

  617. #    define PNG_READ_STRIP_ALPHA_SUPPORTED

  618. #  endif

  619. #  ifndef PNG_NO_READ_USER_TRANSFORM

  620. #    define PNG_READ_USER_TRANSFORM_SUPPORTED

  621. #  endif

  622. #  ifndef PNG_NO_READ_RGB_TO_GRAY

  623. #    define PNG_READ_RGB_TO_GRAY_SUPPORTED

  624. #  endif

  625. #endif /* PNG_READ_TRANSFORMS_SUPPORTED */

  626. 

  627. #if !defined(PNG_NO_PROGRESSIVE_READ) && \

  628.  !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive   */

  629. #  define PNG_PROGRESSIVE_READ_SUPPORTED  /* reading.  This is not talking */

  630. #endif                            /* about interlacing capability!  You'll */

  631.            /* still have interlacing unless you change the following line: */

  632. 

  633. #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */

  634. 

  635. #ifndef PNG_NO_READ_COMPOSITE_NODIV

  636. #  ifndef PNG_NO_READ_COMPOSITED_NODIV  /* libpng-1.0.x misspelling */

  637. #    define PNG_READ_COMPOSITE_NODIV_SUPPORTED  /* well tested on Intel, SGI */

  638. #  endif

  639. #endif

  640. 

  641. #if defined(PNG_1_0_X) || defined (PNG_1_2_X)

  642. /* Deprecated, will be removed from version 2.0.0.

  643.    Use PNG_MNG_FEATURES_SUPPORTED instead. */

  644. #ifndef PNG_NO_READ_EMPTY_PLTE

  645. #  define PNG_READ_EMPTY_PLTE_SUPPORTED

  646. #endif

  647. #endif

  648. 

  649. #endif /* PNG_READ_SUPPORTED */

  650. 

  651. #if defined(PNG_WRITE_SUPPORTED)

  652. 

  653. # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \

  654.     !defined(PNG_NO_WRITE_TRANSFORMS)

  655. #  define PNG_WRITE_TRANSFORMS_SUPPORTED

  656. #endif

  657. 

  658. #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED

  659. #  ifndef PNG_NO_WRITE_SHIFT

  660. #    define PNG_WRITE_SHIFT_SUPPORTED

  661. #  endif

  662. #  ifndef PNG_NO_WRITE_PACK

  663. #    define PNG_WRITE_PACK_SUPPORTED

  664. #  endif

  665. #  ifndef PNG_NO_WRITE_BGR

  666. #    define PNG_WRITE_BGR_SUPPORTED

  667. #  endif

  668. #  ifndef PNG_NO_WRITE_SWAP

  669. #    define PNG_WRITE_SWAP_SUPPORTED

  670. #  endif

  671. #  ifndef PNG_NO_WRITE_PACKSWAP

  672. #    define PNG_WRITE_PACKSWAP_SUPPORTED

  673. #  endif

  674. #  ifndef PNG_NO_WRITE_INVERT

  675. #    define PNG_WRITE_INVERT_SUPPORTED

  676. #  endif

  677. #  ifndef PNG_NO_WRITE_FILLER

  678. #    define PNG_WRITE_FILLER_SUPPORTED   /* same as WRITE_STRIP_ALPHA */

  679. #  endif

  680. #  ifndef PNG_NO_WRITE_SWAP_ALPHA

  681. #    define PNG_WRITE_SWAP_ALPHA_SUPPORTED

  682. #  endif

  683. #  ifndef PNG_NO_WRITE_INVERT_ALPHA

  684. #    define PNG_WRITE_INVERT_ALPHA_SUPPORTED

  685. #  endif

  686. #  ifndef PNG_NO_WRITE_USER_TRANSFORM

  687. #    define PNG_WRITE_USER_TRANSFORM_SUPPORTED

  688. #  endif

  689. #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */

  690. 

  691. #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \

  692.     !defined(PNG_WRITE_INTERLACING_SUPPORTED)

  693. #define PNG_WRITE_INTERLACING_SUPPORTED  /* not required for PNG-compliant

  694.                                             encoders, but can cause trouble

  695.                                             if left undefined */

  696. #endif

  697. 

  698. #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \

  699.     !defined(PNG_WRITE_WEIGHTED_FILTER) && \

  700.      defined(PNG_FLOATING_POINT_SUPPORTED)

  701. #  define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED

  702. #endif

  703. 

  704. #ifndef PNG_NO_WRITE_FLUSH

  705. #  define PNG_WRITE_FLUSH_SUPPORTED

  706. #endif

  707. 

  708. #if defined(PNG_1_0_X) || defined (PNG_1_2_X)

  709. /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */

  710. #ifndef PNG_NO_WRITE_EMPTY_PLTE

  711. #  define PNG_WRITE_EMPTY_PLTE_SUPPORTED

  712. #endif

  713. #endif

  714. 

  715. #endif /* PNG_WRITE_SUPPORTED */

  716. 

  717. #ifndef PNG_1_0_X

  718. #  ifndef PNG_NO_ERROR_NUMBERS

  719. #    define PNG_ERROR_NUMBERS_SUPPORTED

  720. #  endif

  721. #endif /* PNG_1_0_X */

  722. 

  723. #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \

  724.     defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)

  725. #  ifndef PNG_NO_USER_TRANSFORM_PTR

  726. #    define PNG_USER_TRANSFORM_PTR_SUPPORTED

  727. #  endif

  728. #endif

  729. 

  730. #ifndef PNG_NO_STDIO

  731. #  define PNG_TIME_RFC1123_SUPPORTED

  732. #endif

  733. 

  734. /* This adds extra functions in pngget.c for accessing data from the

  735.  * info pointer (added in version 0.99)

  736.  * png_get_image_width()

  737.  * png_get_image_height()

  738.  * png_get_bit_depth()

  739.  * png_get_color_type()

  740.  * png_get_compression_type()

  741.  * png_get_filter_type()

  742.  * png_get_interlace_type()

  743.  * png_get_pixel_aspect_ratio()

  744.  * png_get_pixels_per_meter()

  745.  * png_get_x_offset_pixels()

  746.  * png_get_y_offset_pixels()

  747.  * png_get_x_offset_microns()

  748.  * png_get_y_offset_microns()

  749.  */

  750. #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)

  751. #  define PNG_EASY_ACCESS_SUPPORTED

  752. #endif

  753. 

  754. /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0

  755.  * and removed from version 1.2.20.  The following will be removed

  756.  * from libpng-1.4.0

  757. */

  758. 

  759. #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)

  760. #  ifndef PNG_OPTIMIZED_CODE_SUPPORTED

  761. #    define PNG_OPTIMIZED_CODE_SUPPORTED

  762. #  endif

  763. #endif

  764. 

  765. #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)

  766. #  ifndef PNG_ASSEMBLER_CODE_SUPPORTED

  767. #    define PNG_ASSEMBLER_CODE_SUPPORTED

  768. #  endif

  769. 

  770. #  if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)

  771.      /* work around 64-bit gcc compiler bugs in gcc-3.x */

  772. #    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)

  773. #      define PNG_NO_MMX_CODE

  774. #    endif

  775. #  endif

  776. 

  777. #  if defined(__APPLE__)

  778. #    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)

  779. #      define PNG_NO_MMX_CODE

  780. #    endif

  781. #  endif

  782. 

  783. #  if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))

  784. #    if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)

  785. #      define PNG_NO_MMX_CODE

  786. #    endif

  787. #  endif

  788. 

  789. #  if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)

  790. #    define PNG_MMX_CODE_SUPPORTED

  791. #  endif

  792. 

  793. #endif

  794. /* end of obsolete code to be removed from libpng-1.4.0 */

  795. 

  796. #if !defined(PNG_1_0_X)

  797. #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)

  798. #  define PNG_USER_MEM_SUPPORTED

  799. #endif

  800. #endif /* PNG_1_0_X */

  801. 

  802. /* Added at libpng-1.2.6 */

  803. #if !defined(PNG_1_0_X)

  804. #ifndef PNG_SET_USER_LIMITS_SUPPORTED

  805. #if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)

  806. #  define PNG_SET_USER_LIMITS_SUPPORTED

  807. #endif

  808. #endif

  809. #endif /* PNG_1_0_X */

  810. 

  811. /* Added at libpng-1.0.16 and 1.2.6.  To accept all valid PNGS no matter

  812.  * how large, set these limits to 0x7fffffffL

  813.  */

  814. #ifndef PNG_USER_WIDTH_MAX

  815. #  define PNG_USER_WIDTH_MAX 1000000L

  816. #endif

  817. #ifndef PNG_USER_HEIGHT_MAX

  818. #  define PNG_USER_HEIGHT_MAX 1000000L

  819. #endif

  820. 

  821. /* These are currently experimental features, define them if you want */

  822. 

  823. /* very little testing */

  824. /*

  825. #ifdef PNG_READ_SUPPORTED

  826. #  ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED

  827. #    define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED

  828. #  endif

  829. #endif

  830. */

  831. 

  832. /* This is only for PowerPC big-endian and 680x0 systems */

  833. /* some testing */

  834. /*

  835. #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED

  836. #  define PNG_READ_BIG_ENDIAN_SUPPORTED

  837. #endif

  838. */

  839. 

  840. /* Buggy compilers (e.g., gcc 2.7.2.2) need this */

  841. /*

  842. #define PNG_NO_POINTER_INDEXING

  843. */

  844. 

  845. /* These functions are turned off by default, as they will be phased out. */

  846. /*

  847. #define  PNG_USELESS_TESTS_SUPPORTED

  848. #define  PNG_CORRECT_PALETTE_SUPPORTED

  849. */

  850. 

  851. /* Any chunks you are not interested in, you can undef here.  The

  852.  * ones that allocate memory may be expecially important (hIST,

  853.  * tEXt, zTXt, tRNS, pCAL).  Others will just save time and make png_info

  854.  * a bit smaller.

  855.  */

  856. 

  857. #if defined(PNG_READ_SUPPORTED) && \

  858.     !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \

  859.     !defined(PNG_NO_READ_ANCILLARY_CHUNKS)

  860. #  define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED

  861. #endif

  862. 

  863. #if defined(PNG_WRITE_SUPPORTED) && \

  864.     !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \

  865.     !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)

  866. #  define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED

  867. #endif

  868. 

  869. #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED

  870. 

  871. #ifdef PNG_NO_READ_TEXT

  872. #  define PNG_NO_READ_iTXt

  873. #  define PNG_NO_READ_tEXt

  874. #  define PNG_NO_READ_zTXt

  875. #endif

  876. #ifndef PNG_NO_READ_bKGD

  877. #  define PNG_READ_bKGD_SUPPORTED

  878. #  define PNG_bKGD_SUPPORTED

  879. #endif

  880. #ifndef PNG_NO_READ_cHRM

  881. #  define PNG_READ_cHRM_SUPPORTED

  882. #  define PNG_cHRM_SUPPORTED

  883. #endif

  884. #ifndef PNG_NO_READ_gAMA

  885. #  define PNG_READ_gAMA_SUPPORTED

  886. #  define PNG_gAMA_SUPPORTED

  887. #endif

  888. #ifndef PNG_NO_READ_hIST

  889. #  define PNG_READ_hIST_SUPPORTED

  890. #  define PNG_hIST_SUPPORTED

  891. #endif

  892. #ifndef PNG_NO_READ_iCCP

  893. #  define PNG_READ_iCCP_SUPPORTED

  894. #  define PNG_iCCP_SUPPORTED

  895. #endif

  896. #ifndef PNG_NO_READ_iTXt

  897. #  ifndef PNG_READ_iTXt_SUPPORTED

  898. #    define PNG_READ_iTXt_SUPPORTED

  899. #  endif

  900. #  ifndef PNG_iTXt_SUPPORTED

  901. #    define PNG_iTXt_SUPPORTED

  902. #  endif

  903. #endif

  904. #ifndef PNG_NO_READ_oFFs

  905. #  define PNG_READ_oFFs_SUPPORTED

  906. #  define PNG_oFFs_SUPPORTED

  907. #endif

  908. #ifndef PNG_NO_READ_pCAL

  909. #  define PNG_READ_pCAL_SUPPORTED

  910. #  define PNG_pCAL_SUPPORTED

  911. #endif

  912. #ifndef PNG_NO_READ_sCAL

  913. #  define PNG_READ_sCAL_SUPPORTED

  914. #  define PNG_sCAL_SUPPORTED

  915. #endif

  916. #ifndef PNG_NO_READ_pHYs

  917. #  define PNG_READ_pHYs_SUPPORTED

  918. #  define PNG_pHYs_SUPPORTED

  919. #endif

  920. #ifndef PNG_NO_READ_sBIT

  921. #  define PNG_READ_sBIT_SUPPORTED

  922. #  define PNG_sBIT_SUPPORTED

  923. #endif

  924. #ifndef PNG_NO_READ_sPLT

  925. #  define PNG_READ_sPLT_SUPPORTED

  926. #  define PNG_sPLT_SUPPORTED

  927. #endif

  928. #ifndef PNG_NO_READ_sRGB

  929. #  define PNG_READ_sRGB_SUPPORTED

  930. #  define PNG_sRGB_SUPPORTED

  931. #endif

  932. #ifndef PNG_NO_READ_tEXt

  933. #  define PNG_READ_tEXt_SUPPORTED

  934. #  define PNG_tEXt_SUPPORTED

  935. #endif

  936. #ifndef PNG_NO_READ_tIME

  937. #  define PNG_READ_tIME_SUPPORTED

  938. #  define PNG_tIME_SUPPORTED

  939. #endif

  940. #ifndef PNG_NO_READ_tRNS

  941. #  define PNG_READ_tRNS_SUPPORTED

  942. #  define PNG_tRNS_SUPPORTED

  943. #endif

  944. #ifndef PNG_NO_READ_zTXt

  945. #  define PNG_READ_zTXt_SUPPORTED

  946. #  define PNG_zTXt_SUPPORTED

  947. #endif

  948. #ifndef PNG_NO_READ_UNKNOWN_CHUNKS

  949. #  define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED

  950. #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED

  951. #    define PNG_UNKNOWN_CHUNKS_SUPPORTED

  952. #  endif

  953. #  ifndef PNG_NO_HANDLE_AS_UNKNOWN

  954. #    define PNG_HANDLE_AS_UNKNOWN_SUPPORTED

  955. #  endif

  956. #endif

  957. #if !defined(PNG_NO_READ_USER_CHUNKS) && \

  958.      defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)

  959. #  define PNG_READ_USER_CHUNKS_SUPPORTED

  960. #  define PNG_USER_CHUNKS_SUPPORTED

  961. #  ifdef PNG_NO_READ_UNKNOWN_CHUNKS

  962. #    undef PNG_NO_READ_UNKNOWN_CHUNKS

  963. #  endif

  964. #  ifdef PNG_NO_HANDLE_AS_UNKNOWN

  965. #    undef PNG_NO_HANDLE_AS_UNKNOWN

  966. #  endif

  967. #endif

  968. #ifndef PNG_NO_READ_OPT_PLTE

  969. #  define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */

  970. #endif                      /* optional PLTE chunk in RGB and RGBA images */

  971. #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \

  972.     defined(PNG_READ_zTXt_SUPPORTED)

  973. #  define PNG_READ_TEXT_SUPPORTED

  974. #  define PNG_TEXT_SUPPORTED

  975. #endif

  976. 

  977. #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */

  978. 

  979. #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED

  980. 

  981. #ifdef PNG_NO_WRITE_TEXT

  982. #  define PNG_NO_WRITE_iTXt

  983. #  define PNG_NO_WRITE_tEXt

  984. #  define PNG_NO_WRITE_zTXt

  985. #endif

  986. #ifndef PNG_NO_WRITE_bKGD

  987. #  define PNG_WRITE_bKGD_SUPPORTED

  988. #  ifndef PNG_bKGD_SUPPORTED

  989. #    define PNG_bKGD_SUPPORTED

  990. #  endif

  991. #endif

  992. #ifndef PNG_NO_WRITE_cHRM

  993. #  define PNG_WRITE_cHRM_SUPPORTED

  994. #  ifndef PNG_cHRM_SUPPORTED

  995. #    define PNG_cHRM_SUPPORTED

  996. #  endif

  997. #endif

  998. #ifndef PNG_NO_WRITE_gAMA

  999. #  define PNG_WRITE_gAMA_SUPPORTED

  1000. #  ifndef PNG_gAMA_SUPPORTED

  1001. #    define PNG_gAMA_SUPPORTED

  1002. #  endif

  1003. #endif

  1004. #ifndef PNG_NO_WRITE_hIST

  1005. #  define PNG_WRITE_hIST_SUPPORTED

  1006. #  ifndef PNG_hIST_SUPPORTED

  1007. #    define PNG_hIST_SUPPORTED

  1008. #  endif

  1009. #endif

  1010. #ifndef PNG_NO_WRITE_iCCP

  1011. #  define PNG_WRITE_iCCP_SUPPORTED

  1012. #  ifndef PNG_iCCP_SUPPORTED

  1013. #    define PNG_iCCP_SUPPORTED

  1014. #  endif

  1015. #endif

  1016. #ifndef PNG_NO_WRITE_iTXt

  1017. #  ifndef PNG_WRITE_iTXt_SUPPORTED

  1018. #    define PNG_WRITE_iTXt_SUPPORTED

  1019. #  endif

  1020. #  ifndef PNG_iTXt_SUPPORTED

  1021. #    define PNG_iTXt_SUPPORTED

  1022. #  endif

  1023. #endif

  1024. #ifndef PNG_NO_WRITE_oFFs

  1025. #  define PNG_WRITE_oFFs_SUPPORTED

  1026. #  ifndef PNG_oFFs_SUPPORTED

  1027. #    define PNG_oFFs_SUPPORTED

  1028. #  endif

  1029. #endif

  1030. #ifndef PNG_NO_WRITE_pCAL

  1031. #  define PNG_WRITE_pCAL_SUPPORTED

  1032. #  ifndef PNG_pCAL_SUPPORTED

  1033. #    define PNG_pCAL_SUPPORTED

  1034. #  endif

  1035. #endif

  1036. #ifndef PNG_NO_WRITE_sCAL

  1037. #  define PNG_WRITE_sCAL_SUPPORTED

  1038. #  ifndef PNG_sCAL_SUPPORTED

  1039. #    define PNG_sCAL_SUPPORTED

  1040. #  endif

  1041. #endif

  1042. #ifndef PNG_NO_WRITE_pHYs

  1043. #  define PNG_WRITE_pHYs_SUPPORTED

  1044. #  ifndef PNG_pHYs_SUPPORTED

  1045. #    define PNG_pHYs_SUPPORTED

  1046. #  endif

  1047. #endif

  1048. #ifndef PNG_NO_WRITE_sBIT

  1049. #  define PNG_WRITE_sBIT_SUPPORTED

  1050. #  ifndef PNG_sBIT_SUPPORTED

  1051. #    define PNG_sBIT_SUPPORTED

  1052. #  endif

  1053. #endif

  1054. #ifndef PNG_NO_WRITE_sPLT

  1055. #  define PNG_WRITE_sPLT_SUPPORTED

  1056. #  ifndef PNG_sPLT_SUPPORTED

  1057. #    define PNG_sPLT_SUPPORTED

  1058. #  endif

  1059. #endif

  1060. #ifndef PNG_NO_WRITE_sRGB

  1061. #  define PNG_WRITE_sRGB_SUPPORTED

  1062. #  ifndef PNG_sRGB_SUPPORTED

  1063. #    define PNG_sRGB_SUPPORTED

  1064. #  endif

  1065. #endif

  1066. #ifndef PNG_NO_WRITE_tEXt

  1067. #  define PNG_WRITE_tEXt_SUPPORTED

  1068. #  ifndef PNG_tEXt_SUPPORTED

  1069. #    define PNG_tEXt_SUPPORTED

  1070. #  endif

  1071. #endif

  1072. #ifndef PNG_NO_WRITE_tIME

  1073. #  define PNG_WRITE_tIME_SUPPORTED

  1074. #  ifndef PNG_tIME_SUPPORTED

  1075. #    define PNG_tIME_SUPPORTED

  1076. #  endif

  1077. #endif

  1078. #ifndef PNG_NO_WRITE_tRNS

  1079. #  define PNG_WRITE_tRNS_SUPPORTED

  1080. #  ifndef PNG_tRNS_SUPPORTED

  1081. #    define PNG_tRNS_SUPPORTED

  1082. #  endif

  1083. #endif

  1084. #ifndef PNG_NO_WRITE_zTXt

  1085. #  define PNG_WRITE_zTXt_SUPPORTED

  1086. #  ifndef PNG_zTXt_SUPPORTED

  1087. #    define PNG_zTXt_SUPPORTED

  1088. #  endif

  1089. #endif

  1090. #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS

  1091. #  define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED

  1092. #  ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED

  1093. #    define PNG_UNKNOWN_CHUNKS_SUPPORTED

  1094. #  endif

  1095. #  ifndef PNG_NO_HANDLE_AS_UNKNOWN

  1096. #     ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED

  1097. #       define PNG_HANDLE_AS_UNKNOWN_SUPPORTED

  1098. #     endif

  1099. #  endif

  1100. #endif

  1101. #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \

  1102.     defined(PNG_WRITE_zTXt_SUPPORTED)

  1103. #  define PNG_WRITE_TEXT_SUPPORTED

  1104. #  ifndef PNG_TEXT_SUPPORTED

  1105. #    define PNG_TEXT_SUPPORTED

  1106. #  endif

  1107. #endif

  1108. 

  1109. #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */

  1110. 

  1111. /* Turn this off to disable png_read_png() and

  1112.  * png_write_png() and leave the row_pointers member

  1113.  * out of the info structure.

  1114.  */

  1115. #ifndef PNG_NO_INFO_IMAGE

  1116. #  define PNG_INFO_IMAGE_SUPPORTED

  1117. #endif

  1118. 

  1119. /* need the time information for reading tIME chunks */

  1120. #if defined(PNG_tIME_SUPPORTED)

  1121. #  if !defined(_WIN32_WCE)

  1122.      /* "time.h" functions are not supported on WindowsCE */

  1123. #    include <time.h>

  1124. #  endif

  1125. #endif

  1126. 

  1127. /* Some typedefs to get us started.  These should be safe on most of the

  1128.  * common platforms.  The typedefs should be at least as large as the

  1129.  * numbers suggest (a png_uint_32 must be at least 32 bits long), but they

  1130.  * don't have to be exactly that size.  Some compilers dislike passing

  1131.  * unsigned shorts as function parameters, so you may be better off using

  1132.  * unsigned int for png_uint_16.  Likewise, for 64-bit systems, you may

  1133.  * want to have unsigned int for png_uint_32 instead of unsigned long.

  1134.  */

  1135. 

  1136. typedef unsigned long png_uint_32;

  1137. typedef long png_int_32;

  1138. typedef unsigned short png_uint_16;

  1139. typedef short png_int_16;

  1140. typedef unsigned char png_byte;

  1141. 

  1142. /* This is usually size_t.  It is typedef'ed just in case you need it to

  1143.    change (I'm not sure if you will or not, so I thought I'd be safe) */

  1144. #ifdef PNG_SIZE_T

  1145.    typedef PNG_SIZE_T png_size_t;

  1146. #  define png_sizeof(x) png_convert_size(sizeof (x))

  1147. #else

  1148.    typedef size_t png_size_t;

  1149. #  define png_sizeof(x) sizeof (x)

  1150. #endif

  1151. 

  1152. /* The following is needed for medium model support.  It cannot be in the

  1153.  * PNG_INTERNAL section.  Needs modification for other compilers besides

  1154.  * MSC.  Model independent support declares all arrays and pointers to be

  1155.  * large using the far keyword.  The zlib version used must also support

  1156.  * model independent data.  As of version zlib 1.0.4, the necessary changes

  1157.  * have been made in zlib.  The USE_FAR_KEYWORD define triggers other

  1158.  * changes that are needed. (Tim Wegner)

  1159.  */

  1160. 

  1161. /* Separate compiler dependencies (problem here is that zlib.h always

  1162.    defines FAR. (SJT) */

  1163. #ifdef __BORLANDC__

  1164. #  if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)

  1165. #    define LDATA 1

  1166. #  else

  1167. #    define LDATA 0

  1168. #  endif

  1169.    /* GRR:  why is Cygwin in here?  Cygwin is not Borland C... */

  1170. #  if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)

  1171. #    define PNG_MAX_MALLOC_64K

  1172. #    if (LDATA != 1)

  1173. #      ifndef FAR

  1174. #        define FAR __far

  1175. #      endif

  1176. #      define USE_FAR_KEYWORD

  1177. #    endif   /* LDATA != 1 */

  1178.      /* Possibly useful for moving data out of default segment.

  1179.       * Uncomment it if you want. Could also define FARDATA as

  1180.       * const if your compiler supports it. (SJT)

  1181. #    define FARDATA FAR

  1182.       */

  1183. #  endif  /* __WIN32__, __FLAT__, __CYGWIN__ */

  1184. #endif   /* __BORLANDC__ */

  1185. 

  1186. 

  1187. /* Suggest testing for specific compiler first before testing for

  1188.  * FAR.  The Watcom compiler defines both __MEDIUM__ and M_I86MM,

  1189.  * making reliance oncertain keywords suspect. (SJT)

  1190.  */

  1191. 

  1192. /* MSC Medium model */

  1193. #if defined(FAR)

  1194. #  if defined(M_I86MM)

  1195. #    define USE_FAR_KEYWORD

  1196. #    define FARDATA FAR

  1197. #    include <dos.h>

  1198. #  endif

  1199. #endif

  1200. 

  1201. /* SJT: default case */

  1202. #ifndef FAR

  1203. #  define FAR

  1204. #endif

  1205. 

  1206. /* At this point FAR is always defined */

  1207. #ifndef FARDATA

  1208. #  define FARDATA

  1209. #endif

  1210. 

  1211. /* Typedef for floating-point numbers that are converted

  1212.    to fixed-point with a multiple of 100,000, e.g., int_gamma */

  1213. typedef png_int_32 png_fixed_point;

  1214. 

  1215. /* Add typedefs for pointers */

  1216. typedef void            FAR * png_voidp;

  1217. typedef png_byte        FAR * png_bytep;

  1218. typedef png_uint_32     FAR * png_uint_32p;

  1219. typedef png_int_32      FAR * png_int_32p;

  1220. typedef png_uint_16     FAR * png_uint_16p;

  1221. typedef png_int_16      FAR * png_int_16p;

  1222. typedef PNG_CONST char  FAR * png_const_charp;

  1223. typedef char            FAR * png_charp;

  1224. typedef png_fixed_point FAR * png_fixed_point_p;

  1225. 

  1226. #ifndef PNG_NO_STDIO

  1227. #if defined(_WIN32_WCE)

  1228. typedef HANDLE                png_FILE_p;

  1229. #else

  1230. typedef FILE                * png_FILE_p;

  1231. #endif

  1232. #endif

  1233. 

  1234. #ifdef PNG_FLOATING_POINT_SUPPORTED

  1235. typedef double          FAR * png_doublep;

  1236. #endif

  1237. 

  1238. /* Pointers to pointers; i.e. arrays */

  1239. typedef png_byte        FAR * FAR * png_bytepp;

  1240. typedef png_uint_32     FAR * FAR * png_uint_32pp;

  1241. typedef png_int_32      FAR * FAR * png_int_32pp;

  1242. typedef png_uint_16     FAR * FAR * png_uint_16pp;

  1243. typedef png_int_16      FAR * FAR * png_int_16pp;

  1244. typedef PNG_CONST char  FAR * FAR * png_const_charpp;

  1245. typedef char            FAR * FAR * png_charpp;

  1246. typedef png_fixed_point FAR * FAR * png_fixed_point_pp;

  1247. #ifdef PNG_FLOATING_POINT_SUPPORTED

  1248. typedef double          FAR * FAR * png_doublepp;

  1249. #endif

  1250. 

  1251. /* Pointers to pointers to pointers; i.e., pointer to array */

  1252. typedef char            FAR * FAR * FAR * png_charppp;

  1253. 

  1254. #if 0

  1255. /* SPC -  Is this stuff deprecated? */

  1256. /* It'll be removed as of libpng-1.3.0 - GR-P */

  1257. /* libpng typedefs for types in zlib. If zlib changes

  1258.  * or another compression library is used, then change these.

  1259.  * Eliminates need to change all the source files.

  1260.  */

  1261. typedef charf *         png_zcharp;

  1262. typedef charf * FAR *   png_zcharpp;

  1263. typedef z_stream FAR *  png_zstreamp;

  1264. #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */

  1265. 

  1266. /*

  1267.  * Define PNG_BUILD_DLL if the module being built is a Windows

  1268.  * LIBPNG DLL.

  1269.  *

  1270.  * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.

  1271.  * It is equivalent to Microsoft predefined macro _DLL that is

  1272.  * automatically defined when you compile using the share

  1273.  * version of the CRT (C Run-Time library)

  1274.  *

  1275.  * The cygwin mods make this behavior a little different:

  1276.  * Define PNG_BUILD_DLL if you are building a dll for use with cygwin

  1277.  * Define PNG_STATIC if you are building a static library for use with cygwin,

  1278.  *   -or- if you are building an application that you want to link to the

  1279.  *   static library.

  1280.  * PNG_USE_DLL is defined by default (no user action needed) unless one of

  1281.  *   the other flags is defined.

  1282.  */

  1283. 

  1284. #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))

  1285. #  define PNG_DLL

  1286. #endif

  1287. /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.

  1288.  * When building a static lib, default to no GLOBAL ARRAYS, but allow

  1289.  * command-line override

  1290.  */

  1291. #if defined(__CYGWIN__)

  1292. #  if !defined(PNG_STATIC)

  1293. #    if defined(PNG_USE_GLOBAL_ARRAYS)

  1294. #      undef PNG_USE_GLOBAL_ARRAYS

  1295. #    endif

  1296. #    if !defined(PNG_USE_LOCAL_ARRAYS)

  1297. #      define PNG_USE_LOCAL_ARRAYS

  1298. #    endif

  1299. #  else

  1300. #    if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)

  1301. #      if defined(PNG_USE_GLOBAL_ARRAYS)

  1302. #        undef PNG_USE_GLOBAL_ARRAYS

  1303. #      endif

  1304. #    endif

  1305. #  endif

  1306. #  if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)

  1307. #    define PNG_USE_LOCAL_ARRAYS

  1308. #  endif

  1309. #endif

  1310. 

  1311. /* Do not use global arrays (helps with building DLL's)

  1312.  * They are no longer used in libpng itself, since version 1.0.5c,

  1313.  * but might be required for some pre-1.0.5c applications.

  1314.  */

  1315. #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)

  1316. #  if defined(PNG_NO_GLOBAL_ARRAYS) || \

  1317.       (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)

  1318. #    define PNG_USE_LOCAL_ARRAYS

  1319. #  else

  1320. #    define PNG_USE_GLOBAL_ARRAYS

  1321. #  endif

  1322. #endif

  1323. 

  1324. #if defined(__CYGWIN__)

  1325. #  undef PNGAPI

  1326. #  define PNGAPI __cdecl

  1327. #  undef PNG_IMPEXP

  1328. #  define PNG_IMPEXP

  1329. #endif

  1330. 

  1331. /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",

  1332.  * you may get warnings regarding the linkage of png_zalloc and png_zfree.

  1333.  * Don't ignore those warnings; you must also reset the default calling

  1334.  * convention in your compiler to match your PNGAPI, and you must build

  1335.  * zlib and your applications the same way you build libpng.

  1336.  */

  1337. 

  1338. #if defined(__MINGW32__) && !defined(PNG_MODULEDEF)

  1339. #  ifndef PNG_NO_MODULEDEF

  1340. #    define PNG_NO_MODULEDEF

  1341. #  endif

  1342. #endif

  1343. 

  1344. #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)

  1345. #  define PNG_IMPEXP

  1346. #endif

  1347. 

  1348. #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \

  1349.     (( defined(_Windows) || defined(_WINDOWS) || \

  1350.        defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))

  1351. 

  1352. #  ifndef PNGAPI

  1353. #     if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))

  1354. #        define PNGAPI __cdecl

  1355. #     else

  1356. #        define PNGAPI _cdecl

  1357. #     endif

  1358. #  endif

  1359. 

  1360. #  if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \

  1361.        0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)

  1362. #     define PNG_IMPEXP

  1363. #  endif

  1364. 

  1365. #  if !defined(PNG_IMPEXP)

  1366. 

  1367. #     define PNG_EXPORT_TYPE1(type,symbol)  PNG_IMPEXP type PNGAPI symbol

  1368. #     define PNG_EXPORT_TYPE2(type,symbol)  type PNG_IMPEXP PNGAPI symbol

  1369. 

  1370.       /* Borland/Microsoft */

  1371. #     if defined(_MSC_VER) || defined(__BORLANDC__)

  1372. #        if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)

  1373. #           define PNG_EXPORT PNG_EXPORT_TYPE1

  1374. #        else

  1375. #           define PNG_EXPORT PNG_EXPORT_TYPE2

  1376. #           if defined(PNG_BUILD_DLL)

  1377. #              define PNG_IMPEXP __export

  1378. #           else

  1379. #              define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in

  1380.                                                  VC++ */

  1381. #           endif                             /* Exists in Borland C++ for

  1382.                                                  C++ classes (== huge) */

  1383. #        endif

  1384. #     endif

  1385. 

  1386. #     if !defined(PNG_IMPEXP)

  1387. #        if defined(PNG_BUILD_DLL)

  1388. #           define PNG_IMPEXP __declspec(dllexport)

  1389. #        else

  1390. #           define PNG_IMPEXP __declspec(dllimport)

  1391. #        endif

  1392. #     endif

  1393. #  endif  /* PNG_IMPEXP */

  1394. #else /* !(DLL || non-cygwin WINDOWS) */

  1395. #   if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)

  1396. #      ifndef PNGAPI

  1397. #         define PNGAPI _System

  1398. #      endif

  1399. #   else

  1400. #      if 0 /* ... other platforms, with other meanings */

  1401. #      endif

  1402. #   endif

  1403. #endif

  1404. 

  1405. #ifndef PNGAPI

  1406. #  define PNGAPI

  1407. #endif

  1408. #ifndef PNG_IMPEXP

  1409. #  define PNG_IMPEXP

  1410. #endif

  1411. 

  1412. #ifdef PNG_BUILDSYMS

  1413. #  ifndef PNG_EXPORT

  1414. #    define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END

  1415. #  endif

  1416. #  ifdef PNG_USE_GLOBAL_ARRAYS

  1417. #    ifndef PNG_EXPORT_VAR

  1418. #      define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT

  1419. #    endif

  1420. #  endif

  1421. #endif

  1422. 

  1423. #ifndef PNG_EXPORT

  1424. #  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol

  1425. #endif

  1426. 

  1427. #ifdef PNG_USE_GLOBAL_ARRAYS

  1428. #  ifndef PNG_EXPORT_VAR

  1429. #    define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type

  1430. #  endif

  1431. #endif

  1432. 

  1433. /* User may want to use these so they are not in PNG_INTERNAL. Any library

  1434.  * functions that are passed far data must be model independent.

  1435.  */

  1436. 

  1437. #ifndef PNG_ABORT

  1438. #  define PNG_ABORT() abort()

  1439. #endif

  1440. 

  1441. #ifdef PNG_SETJMP_SUPPORTED

  1442. #  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)

  1443. #else

  1444. #  define png_jmpbuf(png_ptr) \

  1445.    (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)

  1446. #endif

  1447. 

  1448. #if defined(USE_FAR_KEYWORD)  /* memory model independent fns */

  1449. /* use this to make far-to-near assignments */

  1450. #  define CHECK   1

  1451. #  define NOCHECK 0

  1452. #  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))

  1453. #  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))

  1454. #  define png_snprintf _fsnprintf   /* Added to v 1.2.19 */

  1455. #  define png_strcpy  _fstrcpy

  1456. #  define png_strncpy _fstrncpy   /* Added to v 1.2.6 */

  1457. #  define png_strlen  _fstrlen

  1458. #  define png_memcmp  _fmemcmp    /* SJT: added */

  1459. #  define png_memcpy  _fmemcpy

  1460. #  define png_memset  _fmemset

  1461. #else /* use the usual functions */

  1462. #  define CVT_PTR(ptr)         (ptr)

  1463. #  define CVT_PTR_NOCHECK(ptr) (ptr)

  1464. #  ifndef PNG_NO_SNPRINTF

  1465. #    ifdef _MSC_VER

  1466. #      define png_snprintf _snprintf   /* Added to v 1.2.19 */

  1467. #      define png_snprintf2 _snprintf

  1468. #      define png_snprintf6 _snprintf

  1469. #    else

  1470. #      define png_snprintf snprintf   /* Added to v 1.2.19 */

  1471. #      define png_snprintf2 snprintf

  1472. #      define png_snprintf6 snprintf

  1473. #    endif

  1474. #  else

  1475.      /* You don't have or don't want to use snprintf().  Caution: Using

  1476.       * sprintf instead of snprintf exposes your application to accidental

  1477.       * or malevolent buffer overflows.  If you don't have snprintf()

  1478.       * as a general rule you should provide one (you can get one from

  1479.       * Portable OpenSSH). */

  1480. #    define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)

  1481. #    define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)

  1482. #    define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \

  1483.         sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)

  1484. #  endif

  1485. #  define png_strcpy  strcpy

  1486. #  define png_strncpy strncpy     /* Added to v 1.2.6 */

  1487. #  define png_strlen  strlen

  1488. #  define png_memcmp  memcmp      /* SJT: added */

  1489. #  define png_memcpy  memcpy

  1490. #  define png_memset  memset

  1491. #endif

  1492. /* End of memory model independent support */

  1493. 

  1494. /* Just a little check that someone hasn't tried to define something

  1495.  * contradictory.

  1496.  */

  1497. #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)

  1498. #  undef PNG_ZBUF_SIZE

  1499. #  define PNG_ZBUF_SIZE 65536L

  1500. #endif

  1501. 

  1502. /* Added at libpng-1.2.8 */

  1503. #endif /* PNG_VERSION_INFO_ONLY */

  1504. 

  1505. #endif /* PNGCONF_H */