2 /* pngconf.h - machine configurable file for libpng
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4 * libpng version 1.2.50 - July 10, 2012
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5 * Copyright (c) 1998-2012 Glenn Randers-Pehrson
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6 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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7 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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9 * This code is released under the libpng license.
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10 * For conditions of distribution and use, see the disclaimer
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11 * and license in png.h
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14 /* Any machine specific code is near the front of this file, so if you
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15 * are configuring libpng for a machine, you may want to read the section
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16 * starting here down to where it starts to typedef png_color, png_text,
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26 * PNG_USER_CONFIG has to be defined on the compiler command line. This
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27 * includes the resource compiler for Windows DLL configurations.
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29 #ifdef PNG_USER_CONFIG
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30 # ifndef PNG_USER_PRIVATEBUILD
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31 # define PNG_USER_PRIVATEBUILD
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36 /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
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37 #ifdef PNG_CONFIGURE_LIBPNG
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38 #ifdef HAVE_CONFIG_H
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44 * Added at libpng-1.2.8
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46 * If you create a private DLL you need to define in "pngusr.h" the followings:
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47 * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
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48 * the DLL was built>
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49 * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
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50 * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
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51 * distinguish your DLL from those of the official release. These
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52 * correspond to the trailing letters that come after the version
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53 * number and must match your private DLL name>
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54 * e.g. // private DLL "libpng13gx.dll"
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55 * #define PNG_USER_DLLFNAME_POSTFIX "gx"
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57 * The following macros are also at your disposal if you want to complete the
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58 * DLL VERSIONINFO structure.
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59 * - PNG_USER_VERSIONINFO_COMMENTS
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60 * - PNG_USER_VERSIONINFO_COMPANYNAME
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61 * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
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66 # pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
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67 are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
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71 # pragma message("PRIVATEBUILD is deprecated.\
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72 Use PNG_USER_PRIVATEBUILD instead.")
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73 # define PNG_USER_PRIVATEBUILD PRIVATEBUILD
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75 #endif /* __STDC__ */
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77 #ifndef PNG_VERSION_INFO_ONLY
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79 /* End of material added to libpng-1.2.8 */
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81 /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
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82 Restored at libpng-1.2.21 */
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83 #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
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84 !defined(PNG_WARN_UNINITIALIZED_ROW)
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85 # define PNG_WARN_UNINITIALIZED_ROW 1
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87 /* End of material added at libpng-1.2.19/1.2.21 */
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89 /* This is the size of the compression buffer, and thus the size of
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90 * an IDAT chunk. Make this whatever size you feel is best for your
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91 * machine. One of these will be allocated per png_struct. When this
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92 * is full, it writes the data to the disk, and does some other
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93 * calculations. Making this an extremely small size will slow
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94 * the library down, but you may want to experiment to determine
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95 * where it becomes significant, if you are concerned with memory
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96 * usage. Note that zlib allocates at least 32Kb also. For readers,
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97 * this describes the size of the buffer available to read the data in.
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98 * Unless this gets smaller than the size of a row (compressed),
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99 * it should not make much difference how big this is.
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102 #ifndef PNG_ZBUF_SIZE
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103 # define PNG_ZBUF_SIZE 8192
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106 /* Enable if you want a write-only libpng */
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108 #ifndef PNG_NO_READ_SUPPORTED
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109 # define PNG_READ_SUPPORTED
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112 /* Enable if you want a read-only libpng */
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114 #ifndef PNG_NO_WRITE_SUPPORTED
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115 # define PNG_WRITE_SUPPORTED
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118 /* Enabled in 1.2.41. */
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119 #ifdef PNG_ALLOW_BENIGN_ERRORS
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120 # define png_benign_error png_warning
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121 # define png_chunk_benign_error png_chunk_warning
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123 # ifndef PNG_BENIGN_ERRORS_SUPPORTED
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124 # define png_benign_error png_error
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125 # define png_chunk_benign_error png_chunk_error
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129 /* Added in libpng-1.2.41 */
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130 #if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED)
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131 # define PNG_WARNINGS_SUPPORTED
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134 #if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED)
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135 # define PNG_ERROR_TEXT_SUPPORTED
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138 #if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED)
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139 # define PNG_CHECK_cHRM_SUPPORTED
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142 /* Enabled by default in 1.2.0. You can disable this if you don't need to
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143 * support PNGs that are embedded in MNG datastreams
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145 #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
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146 # ifndef PNG_MNG_FEATURES_SUPPORTED
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147 # define PNG_MNG_FEATURES_SUPPORTED
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151 #ifndef PNG_NO_FLOATING_POINT_SUPPORTED
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152 # ifndef PNG_FLOATING_POINT_SUPPORTED
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153 # define PNG_FLOATING_POINT_SUPPORTED
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157 /* If you are running on a machine where you cannot allocate more
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158 * than 64K of memory at once, uncomment this. While libpng will not
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159 * normally need that much memory in a chunk (unless you load up a very
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160 * large file), zlib needs to know how big of a chunk it can use, and
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161 * libpng thus makes sure to check any memory allocation to verify it
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162 * will fit into memory.
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163 #define PNG_MAX_MALLOC_64K
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165 #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
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166 # define PNG_MAX_MALLOC_64K
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169 /* Special munging to support doing things the 'cygwin' way:
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170 * 'Normal' png-on-win32 defines/defaults:
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171 * PNG_BUILD_DLL -- building dll
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172 * PNG_USE_DLL -- building an application, linking to dll
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173 * (no define) -- building static library, or building an
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174 * application and linking to the static lib
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175 * 'Cygwin' defines/defaults:
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176 * PNG_BUILD_DLL -- (ignored) building the dll
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177 * (no define) -- (ignored) building an application, linking to the dll
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178 * PNG_STATIC -- (ignored) building the static lib, or building an
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179 * application that links to the static lib.
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180 * ALL_STATIC -- (ignored) building various static libs, or building an
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181 * application that links to the static libs.
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183 * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
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184 * this bit of #ifdefs will define the 'correct' config variables based on
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185 * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
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188 * Also, the precedence order is:
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189 * ALL_STATIC (since we can't #undef something outside our namespace)
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192 * (nothing) == PNG_USE_DLL
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194 * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
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195 * of auto-import in binutils, we no longer need to worry about
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196 * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
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197 * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
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198 * to __declspec() stuff. However, we DO need to worry about
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199 * PNG_BUILD_DLL and PNG_STATIC because those change some defaults
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200 * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
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204 # ifdef PNG_BUILD_DLL
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205 # undef PNG_BUILD_DLL
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207 # ifdef PNG_USE_DLL
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208 # undef PNG_USE_DLL
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213 # ifndef PNG_STATIC
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214 # define PNG_STATIC
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217 # ifdef PNG_BUILD_DLL
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221 # ifdef PNG_USE_DLL
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222 # undef PNG_USE_DLL
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229 # ifdef PNG_USE_DLL
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230 # undef PNG_USE_DLL
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236 # ifndef PNG_USE_DLL
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237 # define PNG_USE_DLL
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247 /* This protects us against compilers that run on a windowing system
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248 * and thus don't have or would rather us not use the stdio types:
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249 * stdin, stdout, and stderr. The only one currently used is stderr
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250 * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
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251 * prevent these from being compiled and used. #defining PNG_NO_STDIO
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252 * will also prevent these, plus will prevent the entire set of stdio
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253 * macros and functions (FILE *, printf, etc.) from being compiled and used,
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254 * unless (PNG_DEBUG > 0) has been #defined.
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256 * #define PNG_NO_CONSOLE_IO
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257 * #define PNG_NO_STDIO
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260 #if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED)
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261 # define PNG_STDIO_SUPPORTED
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265 # include <windows.h>
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266 /* Console I/O functions are not supported on WindowsCE */
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267 # define PNG_NO_CONSOLE_IO
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268 /* abort() may not be supported on some/all Windows CE platforms */
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269 # define PNG_ABORT() exit(-1)
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275 #ifdef PNG_BUILD_DLL
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276 # ifndef PNG_CONSOLE_IO_SUPPORTED
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277 # ifndef PNG_NO_CONSOLE_IO
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278 # define PNG_NO_CONSOLE_IO
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283 # ifdef PNG_NO_STDIO
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284 # ifndef PNG_NO_CONSOLE_IO
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285 # define PNG_NO_CONSOLE_IO
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288 # if (PNG_DEBUG > 0)
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289 # include <stdio.h>
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293 # ifndef _WIN32_WCE
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294 /* "stdio.h" functions are not supported on WindowsCE */
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295 # include <stdio.h>
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299 #if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED)
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300 # define PNG_CONSOLE_IO_SUPPORTED
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303 /* This macro protects us against machines that don't have function
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304 * prototypes (ie K&R style headers). If your compiler does not handle
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305 * function prototypes, define this macro and use the included ansi2knr.
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306 * I've always been able to use _NO_PROTO as the indicator, but you may
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307 * need to drag the empty declaration out in front of here, or change the
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308 * ifdef to suit your own needs.
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312 #ifdef OF /* zlib prototype munger */
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313 # define PNGARG(arglist) OF(arglist)
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317 # define PNGARG(arglist) ()
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318 # ifndef PNG_TYPECAST_NULL
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319 # define PNG_TYPECAST_NULL
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322 # define PNGARG(arglist) arglist
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323 #endif /* _NO_PROTO */
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328 #endif /* PNGARG */
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330 /* Try to determine if we are compiling on a Mac. Note that testing for
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331 * just __MWERKS__ is not good enough, because the Codewarrior is now used
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332 * on non-Mac platforms.
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335 # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
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336 defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
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341 /* enough people need this for various reasons to include it here */
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342 #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
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343 # include <sys/types.h>
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346 #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
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347 # define PNG_SETJMP_SUPPORTED
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350 #ifdef PNG_SETJMP_SUPPORTED
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351 /* This is an attempt to force a single setjmp behaviour on Linux. If
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352 * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
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354 * You can bypass this test if you know that your application uses exactly
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355 * the same setjmp.h that was included when libpng was built. Only define
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356 * PNG_SKIP_SETJMP_CHECK while building your application, prior to the
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357 * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
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358 * while building a separate libpng library for general use.
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361 # ifndef PNG_SKIP_SETJMP_CHECK
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363 # ifdef _BSD_SOURCE
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364 # define PNG_SAVE_BSD_SOURCE
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365 # undef _BSD_SOURCE
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368 /* If you encounter a compiler error here, see the explanation
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369 * near the end of INSTALL.
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371 __pngconf.h__ in libpng already includes setjmp.h;
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372 __dont__ include it again.;
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374 # endif /* __linux__ */
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375 # endif /* PNG_SKIP_SETJMP_CHECK */
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377 /* include setjmp.h for error handling */
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378 # include <setjmp.h>
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381 # ifdef PNG_SAVE_BSD_SOURCE
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382 # ifndef _BSD_SOURCE
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383 # define _BSD_SOURCE
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385 # undef PNG_SAVE_BSD_SOURCE
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387 # endif /* __linux__ */
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388 #endif /* PNG_SETJMP_SUPPORTED */
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391 # include <strings.h>
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393 # include <string.h>
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396 /* Other defines for things like memory and the like can go here. */
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397 #ifdef PNG_INTERNAL
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399 #include <stdlib.h>
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401 /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
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402 * aren't usually used outside the library (as far as I know), so it is
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403 * debatable if they should be exported at all. In the future, when it is
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404 * possible to have run-time registry of chunk-handling functions, some of
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405 * these will be made available again.
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406 #define PNG_EXTERN extern
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410 /* Other defines specific to compilers can go here. Try to keep
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411 * them inside an appropriate ifdef/endif pair for portability.
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414 #ifdef PNG_FLOATING_POINT_SUPPORTED
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416 /* We need to check that <math.h> hasn't already been included earlier
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417 * as it seems it doesn't agree with <fp.h>, yet we should really use
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418 * <fp.h> if possible.
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420 # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
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426 # if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
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427 /* Amiga SAS/C: We must include builtin FPU functions when compiling using
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430 # include <m68881.h>
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434 /* Codewarrior on NT has linking problems without this. */
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435 #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
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436 # define PNG_ALWAYS_EXTERN
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439 /* This provides the non-ANSI (far) memory allocation routines. */
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440 #if defined(__TURBOC__) && defined(__MSDOS__)
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442 # include <alloc.h>
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445 /* I have no idea why is this necessary... */
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446 #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
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447 defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
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448 # include <malloc.h>
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451 /* This controls how fine the dithering gets. As this allocates
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452 * a largish chunk of memory (32K), those who are not as concerned
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453 * with dithering quality can decrease some or all of these.
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455 #ifndef PNG_DITHER_RED_BITS
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456 # define PNG_DITHER_RED_BITS 5
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458 #ifndef PNG_DITHER_GREEN_BITS
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459 # define PNG_DITHER_GREEN_BITS 5
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461 #ifndef PNG_DITHER_BLUE_BITS
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462 # define PNG_DITHER_BLUE_BITS 5
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465 /* This controls how fine the gamma correction becomes when you
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466 * are only interested in 8 bits anyway. Increasing this value
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467 * results in more memory being used, and more pow() functions
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468 * being called to fill in the gamma tables. Don't set this value
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469 * less then 8, and even that may not work (I haven't tested it).
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472 #ifndef PNG_MAX_GAMMA_8
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473 # define PNG_MAX_GAMMA_8 11
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476 /* This controls how much a difference in gamma we can tolerate before
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477 * we actually start doing gamma conversion.
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479 #ifndef PNG_GAMMA_THRESHOLD
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480 # define PNG_GAMMA_THRESHOLD 0.05
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483 #endif /* PNG_INTERNAL */
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485 /* The following uses const char * instead of char * for error
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486 * and warning message functions, so some compilers won't complain.
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487 * If you do not want to use const, define PNG_NO_CONST here.
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490 #ifndef PNG_NO_CONST
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491 # define PNG_CONST const
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496 /* The following defines give you the ability to remove code from the
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497 * library that you will not be using. I wish I could figure out how to
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498 * automate this, but I can't do that without making it seriously hard
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499 * on the users. So if you are not using an ability, change the #define
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500 * to and #undef, and that part of the library will not be compiled. If
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501 * your linker can't find a function, you may want to make sure the
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502 * ability is defined here. Some of these depend upon some others being
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503 * defined. I haven't figured out all the interactions here, so you may
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504 * have to experiment awhile to get everything to compile. If you are
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505 * creating or using a shared library, you probably shouldn't touch this,
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506 * as it will affect the size of the structures, and this will cause bad
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507 * things to happen if the library and/or application ever change.
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510 /* Any features you will not be using can be undef'ed here */
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512 /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
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513 * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
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514 * on the compile line, then pick and choose which ones to define without
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515 * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
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516 * if you only want to have a png-compliant reader/writer but don't need
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517 * any of the extra transformations. This saves about 80 kbytes in a
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518 * typical installation of the library. (PNG_NO_* form added in version
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519 * 1.0.1c, for consistency)
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522 /* The size of the png_text structure changed in libpng-1.0.6 when
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523 * iTXt support was added. iTXt support was turned off by default through
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524 * libpng-1.2.x, to support old apps that malloc the png_text structure
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525 * instead of calling png_set_text() and letting libpng malloc it. It
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526 * will be turned on by default in libpng-1.4.0.
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529 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
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530 # ifndef PNG_NO_iTXt_SUPPORTED
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531 # define PNG_NO_iTXt_SUPPORTED
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533 # ifndef PNG_NO_READ_iTXt
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534 # define PNG_NO_READ_iTXt
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536 # ifndef PNG_NO_WRITE_iTXt
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537 # define PNG_NO_WRITE_iTXt
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541 #if !defined(PNG_NO_iTXt_SUPPORTED)
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542 # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
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543 # define PNG_READ_iTXt
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545 # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
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546 # define PNG_WRITE_iTXt
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550 /* The following support, added after version 1.0.0, can be turned off here en
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551 * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
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552 * with old applications that require the length of png_struct and png_info
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553 * to remain unchanged.
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556 #ifdef PNG_LEGACY_SUPPORTED
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557 # define PNG_NO_FREE_ME
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558 # define PNG_NO_READ_UNKNOWN_CHUNKS
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559 # define PNG_NO_WRITE_UNKNOWN_CHUNKS
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560 # define PNG_NO_HANDLE_AS_UNKNOWN
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561 # define PNG_NO_READ_USER_CHUNKS
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562 # define PNG_NO_READ_iCCP
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563 # define PNG_NO_WRITE_iCCP
\r
564 # define PNG_NO_READ_iTXt
\r
565 # define PNG_NO_WRITE_iTXt
\r
566 # define PNG_NO_READ_sCAL
\r
567 # define PNG_NO_WRITE_sCAL
\r
568 # define PNG_NO_READ_sPLT
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569 # define PNG_NO_WRITE_sPLT
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570 # define PNG_NO_INFO_IMAGE
\r
571 # define PNG_NO_READ_RGB_TO_GRAY
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572 # define PNG_NO_READ_USER_TRANSFORM
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573 # define PNG_NO_WRITE_USER_TRANSFORM
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574 # define PNG_NO_USER_MEM
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575 # define PNG_NO_READ_EMPTY_PLTE
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576 # define PNG_NO_MNG_FEATURES
\r
577 # define PNG_NO_FIXED_POINT_SUPPORTED
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580 /* Ignore attempt to turn off both floating and fixed point support */
\r
581 #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
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582 !defined(PNG_NO_FIXED_POINT_SUPPORTED)
\r
583 # define PNG_FIXED_POINT_SUPPORTED
\r
586 #ifndef PNG_NO_FREE_ME
\r
587 # define PNG_FREE_ME_SUPPORTED
\r
590 #ifdef PNG_READ_SUPPORTED
\r
592 #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
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593 !defined(PNG_NO_READ_TRANSFORMS)
\r
594 # define PNG_READ_TRANSFORMS_SUPPORTED
\r
597 #ifdef PNG_READ_TRANSFORMS_SUPPORTED
\r
598 # ifndef PNG_NO_READ_EXPAND
\r
599 # define PNG_READ_EXPAND_SUPPORTED
\r
601 # ifndef PNG_NO_READ_SHIFT
\r
602 # define PNG_READ_SHIFT_SUPPORTED
\r
604 # ifndef PNG_NO_READ_PACK
\r
605 # define PNG_READ_PACK_SUPPORTED
\r
607 # ifndef PNG_NO_READ_BGR
\r
608 # define PNG_READ_BGR_SUPPORTED
\r
610 # ifndef PNG_NO_READ_SWAP
\r
611 # define PNG_READ_SWAP_SUPPORTED
\r
613 # ifndef PNG_NO_READ_PACKSWAP
\r
614 # define PNG_READ_PACKSWAP_SUPPORTED
\r
616 # ifndef PNG_NO_READ_INVERT
\r
617 # define PNG_READ_INVERT_SUPPORTED
\r
619 # ifndef PNG_NO_READ_DITHER
\r
620 # define PNG_READ_DITHER_SUPPORTED
\r
622 # ifndef PNG_NO_READ_BACKGROUND
\r
623 # define PNG_READ_BACKGROUND_SUPPORTED
\r
625 # ifndef PNG_NO_READ_16_TO_8
\r
626 # define PNG_READ_16_TO_8_SUPPORTED
\r
628 # ifndef PNG_NO_READ_FILLER
\r
629 # define PNG_READ_FILLER_SUPPORTED
\r
631 # ifndef PNG_NO_READ_GAMMA
\r
632 # define PNG_READ_GAMMA_SUPPORTED
\r
634 # ifndef PNG_NO_READ_GRAY_TO_RGB
\r
635 # define PNG_READ_GRAY_TO_RGB_SUPPORTED
\r
637 # ifndef PNG_NO_READ_SWAP_ALPHA
\r
638 # define PNG_READ_SWAP_ALPHA_SUPPORTED
\r
640 # ifndef PNG_NO_READ_INVERT_ALPHA
\r
641 # define PNG_READ_INVERT_ALPHA_SUPPORTED
\r
643 # ifndef PNG_NO_READ_STRIP_ALPHA
\r
644 # define PNG_READ_STRIP_ALPHA_SUPPORTED
\r
646 # ifndef PNG_NO_READ_USER_TRANSFORM
\r
647 # define PNG_READ_USER_TRANSFORM_SUPPORTED
\r
649 # ifndef PNG_NO_READ_RGB_TO_GRAY
\r
650 # define PNG_READ_RGB_TO_GRAY_SUPPORTED
\r
652 #endif /* PNG_READ_TRANSFORMS_SUPPORTED */
\r
654 /* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */
\r
655 #if !defined(PNG_NO_PROGRESSIVE_READ) && \
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656 !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */
\r
657 # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
\r
658 #endif /* about interlacing capability! You'll */
\r
659 /* still have interlacing unless you change the following define: */
\r
660 #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
\r
662 /* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */
\r
663 #if !defined(PNG_NO_SEQUENTIAL_READ) && \
\r
664 !defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \
\r
665 !defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED)
\r
666 # define PNG_SEQUENTIAL_READ_SUPPORTED
\r
669 #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
\r
671 #ifndef PNG_NO_READ_COMPOSITE_NODIV
\r
672 # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
\r
673 # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
\r
677 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
\r
678 /* Deprecated, will be removed from version 2.0.0.
\r
679 Use PNG_MNG_FEATURES_SUPPORTED instead. */
\r
680 #ifndef PNG_NO_READ_EMPTY_PLTE
\r
681 # define PNG_READ_EMPTY_PLTE_SUPPORTED
\r
685 #endif /* PNG_READ_SUPPORTED */
\r
687 #ifdef PNG_WRITE_SUPPORTED
\r
689 # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
\r
690 !defined(PNG_NO_WRITE_TRANSFORMS)
\r
691 # define PNG_WRITE_TRANSFORMS_SUPPORTED
\r
694 #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
\r
695 # ifndef PNG_NO_WRITE_SHIFT
\r
696 # define PNG_WRITE_SHIFT_SUPPORTED
\r
698 # ifndef PNG_NO_WRITE_PACK
\r
699 # define PNG_WRITE_PACK_SUPPORTED
\r
701 # ifndef PNG_NO_WRITE_BGR
\r
702 # define PNG_WRITE_BGR_SUPPORTED
\r
704 # ifndef PNG_NO_WRITE_SWAP
\r
705 # define PNG_WRITE_SWAP_SUPPORTED
\r
707 # ifndef PNG_NO_WRITE_PACKSWAP
\r
708 # define PNG_WRITE_PACKSWAP_SUPPORTED
\r
710 # ifndef PNG_NO_WRITE_INVERT
\r
711 # define PNG_WRITE_INVERT_SUPPORTED
\r
713 # ifndef PNG_NO_WRITE_FILLER
\r
714 # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */
\r
716 # ifndef PNG_NO_WRITE_SWAP_ALPHA
\r
717 # define PNG_WRITE_SWAP_ALPHA_SUPPORTED
\r
720 # ifndef PNG_NO_WRITE_INVERT_ALPHA
\r
721 # define PNG_WRITE_INVERT_ALPHA_SUPPORTED
\r
724 # ifndef PNG_NO_WRITE_USER_TRANSFORM
\r
725 # define PNG_WRITE_USER_TRANSFORM_SUPPORTED
\r
727 #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
\r
729 #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
\r
730 !defined(PNG_WRITE_INTERLACING_SUPPORTED)
\r
731 #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
\r
732 encoders, but can cause trouble
\r
733 if left undefined */
\r
736 #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
\r
737 !defined(PNG_WRITE_WEIGHTED_FILTER) && \
\r
738 defined(PNG_FLOATING_POINT_SUPPORTED)
\r
739 # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
\r
742 #ifndef PNG_NO_WRITE_FLUSH
\r
743 # define PNG_WRITE_FLUSH_SUPPORTED
\r
746 #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
\r
747 /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
\r
748 #ifndef PNG_NO_WRITE_EMPTY_PLTE
\r
749 # define PNG_WRITE_EMPTY_PLTE_SUPPORTED
\r
753 #endif /* PNG_WRITE_SUPPORTED */
\r
756 # ifndef PNG_NO_ERROR_NUMBERS
\r
757 # define PNG_ERROR_NUMBERS_SUPPORTED
\r
759 #endif /* PNG_1_0_X */
\r
761 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
\r
762 defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
\r
763 # ifndef PNG_NO_USER_TRANSFORM_PTR
\r
764 # define PNG_USER_TRANSFORM_PTR_SUPPORTED
\r
768 #ifndef PNG_NO_STDIO
\r
769 # define PNG_TIME_RFC1123_SUPPORTED
\r
772 /* This adds extra functions in pngget.c for accessing data from the
\r
773 * info pointer (added in version 0.99)
\r
774 * png_get_image_width()
\r
775 * png_get_image_height()
\r
776 * png_get_bit_depth()
\r
777 * png_get_color_type()
\r
778 * png_get_compression_type()
\r
779 * png_get_filter_type()
\r
780 * png_get_interlace_type()
\r
781 * png_get_pixel_aspect_ratio()
\r
782 * png_get_pixels_per_meter()
\r
783 * png_get_x_offset_pixels()
\r
784 * png_get_y_offset_pixels()
\r
785 * png_get_x_offset_microns()
\r
786 * png_get_y_offset_microns()
\r
788 #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
\r
789 # define PNG_EASY_ACCESS_SUPPORTED
\r
792 /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
\r
793 * and removed from version 1.2.20. The following will be removed
\r
794 * from libpng-1.4.0
\r
797 #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
\r
798 # ifndef PNG_OPTIMIZED_CODE_SUPPORTED
\r
799 # define PNG_OPTIMIZED_CODE_SUPPORTED
\r
803 #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
\r
804 # ifndef PNG_ASSEMBLER_CODE_SUPPORTED
\r
805 # define PNG_ASSEMBLER_CODE_SUPPORTED
\r
808 # if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
\r
809 /* work around 64-bit gcc compiler bugs in gcc-3.x */
\r
810 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
\r
811 # define PNG_NO_MMX_CODE
\r
816 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
\r
817 # define PNG_NO_MMX_CODE
\r
821 # if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
\r
822 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
\r
823 # define PNG_NO_MMX_CODE
\r
827 # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
\r
828 # define PNG_MMX_CODE_SUPPORTED
\r
832 /* end of obsolete code to be removed from libpng-1.4.0 */
\r
834 /* Added at libpng-1.2.0 */
\r
836 #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
\r
837 # define PNG_USER_MEM_SUPPORTED
\r
839 #endif /* PNG_1_0_X */
\r
841 /* Added at libpng-1.2.6 */
\r
843 # ifndef PNG_SET_USER_LIMITS_SUPPORTED
\r
844 # ifndef PNG_NO_SET_USER_LIMITS
\r
845 # define PNG_SET_USER_LIMITS_SUPPORTED
\r
848 #endif /* PNG_1_0_X */
\r
850 /* Added at libpng-1.0.53 and 1.2.43 */
\r
851 #ifndef PNG_USER_LIMITS_SUPPORTED
\r
852 # ifndef PNG_NO_USER_LIMITS
\r
853 # define PNG_USER_LIMITS_SUPPORTED
\r
857 /* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter
\r
858 * how large, set these limits to 0x7fffffffL
\r
860 #ifndef PNG_USER_WIDTH_MAX
\r
861 # define PNG_USER_WIDTH_MAX 1000000L
\r
863 #ifndef PNG_USER_HEIGHT_MAX
\r
864 # define PNG_USER_HEIGHT_MAX 1000000L
\r
867 /* Added at libpng-1.2.43. To accept all valid PNGs no matter
\r
868 * how large, set these two limits to 0.
\r
870 #ifndef PNG_USER_CHUNK_CACHE_MAX
\r
871 # define PNG_USER_CHUNK_CACHE_MAX 0
\r
874 /* Added at libpng-1.2.43 */
\r
875 #ifndef PNG_USER_CHUNK_MALLOC_MAX
\r
876 # define PNG_USER_CHUNK_MALLOC_MAX 0
\r
879 #ifndef PNG_LITERAL_SHARP
\r
880 # define PNG_LITERAL_SHARP 0x23
\r
882 #ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
\r
883 # define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b
\r
885 #ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
\r
886 # define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d
\r
889 /* Added at libpng-1.2.34 */
\r
890 #ifndef PNG_STRING_NEWLINE
\r
891 #define PNG_STRING_NEWLINE "\n"
\r
894 /* These are currently experimental features, define them if you want */
\r
896 /* very little testing */
\r
898 #ifdef PNG_READ_SUPPORTED
\r
899 # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
\r
900 # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
\r
905 /* This is only for PowerPC big-endian and 680x0 systems */
\r
908 #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
\r
909 # define PNG_READ_BIG_ENDIAN_SUPPORTED
\r
913 /* Buggy compilers (e.g., gcc 2.7.2.2) need this */
\r
915 #define PNG_NO_POINTER_INDEXING
\r
918 #if !defined(PNG_NO_POINTER_INDEXING) && \
\r
919 !defined(PNG_POINTER_INDEXING_SUPPORTED)
\r
920 # define PNG_POINTER_INDEXING_SUPPORTED
\r
923 /* These functions are turned off by default, as they will be phased out. */
\r
925 #define PNG_USELESS_TESTS_SUPPORTED
\r
926 #define PNG_CORRECT_PALETTE_SUPPORTED
\r
929 /* Any chunks you are not interested in, you can undef here. The
\r
930 * ones that allocate memory may be expecially important (hIST,
\r
931 * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
\r
935 #if defined(PNG_READ_SUPPORTED) && \
\r
936 !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
\r
937 !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
\r
938 # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
\r
941 #if defined(PNG_WRITE_SUPPORTED) && \
\r
942 !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
\r
943 !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
\r
944 # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
\r
947 #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
\r
949 #ifdef PNG_NO_READ_TEXT
\r
950 # define PNG_NO_READ_iTXt
\r
951 # define PNG_NO_READ_tEXt
\r
952 # define PNG_NO_READ_zTXt
\r
954 #ifndef PNG_NO_READ_bKGD
\r
955 # define PNG_READ_bKGD_SUPPORTED
\r
956 # define PNG_bKGD_SUPPORTED
\r
958 #ifndef PNG_NO_READ_cHRM
\r
959 # define PNG_READ_cHRM_SUPPORTED
\r
960 # define PNG_cHRM_SUPPORTED
\r
962 #ifndef PNG_NO_READ_gAMA
\r
963 # define PNG_READ_gAMA_SUPPORTED
\r
964 # define PNG_gAMA_SUPPORTED
\r
966 #ifndef PNG_NO_READ_hIST
\r
967 # define PNG_READ_hIST_SUPPORTED
\r
968 # define PNG_hIST_SUPPORTED
\r
970 #ifndef PNG_NO_READ_iCCP
\r
971 # define PNG_READ_iCCP_SUPPORTED
\r
972 # define PNG_iCCP_SUPPORTED
\r
974 #ifndef PNG_NO_READ_iTXt
\r
975 # ifndef PNG_READ_iTXt_SUPPORTED
\r
976 # define PNG_READ_iTXt_SUPPORTED
\r
978 # ifndef PNG_iTXt_SUPPORTED
\r
979 # define PNG_iTXt_SUPPORTED
\r
982 #ifndef PNG_NO_READ_oFFs
\r
983 # define PNG_READ_oFFs_SUPPORTED
\r
984 # define PNG_oFFs_SUPPORTED
\r
986 #ifndef PNG_NO_READ_pCAL
\r
987 # define PNG_READ_pCAL_SUPPORTED
\r
988 # define PNG_pCAL_SUPPORTED
\r
990 #ifndef PNG_NO_READ_sCAL
\r
991 # define PNG_READ_sCAL_SUPPORTED
\r
992 # define PNG_sCAL_SUPPORTED
\r
994 #ifndef PNG_NO_READ_pHYs
\r
995 # define PNG_READ_pHYs_SUPPORTED
\r
996 # define PNG_pHYs_SUPPORTED
\r
998 #ifndef PNG_NO_READ_sBIT
\r
999 # define PNG_READ_sBIT_SUPPORTED
\r
1000 # define PNG_sBIT_SUPPORTED
\r
1002 #ifndef PNG_NO_READ_sPLT
\r
1003 # define PNG_READ_sPLT_SUPPORTED
\r
1004 # define PNG_sPLT_SUPPORTED
\r
1006 #ifndef PNG_NO_READ_sRGB
\r
1007 # define PNG_READ_sRGB_SUPPORTED
\r
1008 # define PNG_sRGB_SUPPORTED
\r
1010 #ifndef PNG_NO_READ_tEXt
\r
1011 # define PNG_READ_tEXt_SUPPORTED
\r
1012 # define PNG_tEXt_SUPPORTED
\r
1014 #ifndef PNG_NO_READ_tIME
\r
1015 # define PNG_READ_tIME_SUPPORTED
\r
1016 # define PNG_tIME_SUPPORTED
\r
1018 #ifndef PNG_NO_READ_tRNS
\r
1019 # define PNG_READ_tRNS_SUPPORTED
\r
1020 # define PNG_tRNS_SUPPORTED
\r
1022 #ifndef PNG_NO_READ_zTXt
\r
1023 # define PNG_READ_zTXt_SUPPORTED
\r
1024 # define PNG_zTXt_SUPPORTED
\r
1026 #ifndef PNG_NO_READ_OPT_PLTE
\r
1027 # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
\r
1028 #endif /* optional PLTE chunk in RGB and RGBA images */
\r
1029 #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
\r
1030 defined(PNG_READ_zTXt_SUPPORTED)
\r
1031 # define PNG_READ_TEXT_SUPPORTED
\r
1032 # define PNG_TEXT_SUPPORTED
\r
1035 #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
\r
1037 #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
\r
1038 # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
\r
1039 # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
\r
1040 # define PNG_UNKNOWN_CHUNKS_SUPPORTED
\r
1043 #if !defined(PNG_NO_READ_USER_CHUNKS) && \
\r
1044 defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
\r
1045 # define PNG_READ_USER_CHUNKS_SUPPORTED
\r
1046 # define PNG_USER_CHUNKS_SUPPORTED
\r
1047 # ifdef PNG_NO_READ_UNKNOWN_CHUNKS
\r
1048 # undef PNG_NO_READ_UNKNOWN_CHUNKS
\r
1050 # ifdef PNG_NO_HANDLE_AS_UNKNOWN
\r
1051 # undef PNG_NO_HANDLE_AS_UNKNOWN
\r
1055 #ifndef PNG_NO_HANDLE_AS_UNKNOWN
\r
1056 # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
\r
1057 # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
\r
1061 #ifdef PNG_WRITE_SUPPORTED
\r
1062 #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
\r
1064 #ifdef PNG_NO_WRITE_TEXT
\r
1065 # define PNG_NO_WRITE_iTXt
\r
1066 # define PNG_NO_WRITE_tEXt
\r
1067 # define PNG_NO_WRITE_zTXt
\r
1069 #ifndef PNG_NO_WRITE_bKGD
\r
1070 # define PNG_WRITE_bKGD_SUPPORTED
\r
1071 # ifndef PNG_bKGD_SUPPORTED
\r
1072 # define PNG_bKGD_SUPPORTED
\r
1075 #ifndef PNG_NO_WRITE_cHRM
\r
1076 # define PNG_WRITE_cHRM_SUPPORTED
\r
1077 # ifndef PNG_cHRM_SUPPORTED
\r
1078 # define PNG_cHRM_SUPPORTED
\r
1081 #ifndef PNG_NO_WRITE_gAMA
\r
1082 # define PNG_WRITE_gAMA_SUPPORTED
\r
1083 # ifndef PNG_gAMA_SUPPORTED
\r
1084 # define PNG_gAMA_SUPPORTED
\r
1087 #ifndef PNG_NO_WRITE_hIST
\r
1088 # define PNG_WRITE_hIST_SUPPORTED
\r
1089 # ifndef PNG_hIST_SUPPORTED
\r
1090 # define PNG_hIST_SUPPORTED
\r
1093 #ifndef PNG_NO_WRITE_iCCP
\r
1094 # define PNG_WRITE_iCCP_SUPPORTED
\r
1095 # ifndef PNG_iCCP_SUPPORTED
\r
1096 # define PNG_iCCP_SUPPORTED
\r
1099 #ifndef PNG_NO_WRITE_iTXt
\r
1100 # ifndef PNG_WRITE_iTXt_SUPPORTED
\r
1101 # define PNG_WRITE_iTXt_SUPPORTED
\r
1103 # ifndef PNG_iTXt_SUPPORTED
\r
1104 # define PNG_iTXt_SUPPORTED
\r
1107 #ifndef PNG_NO_WRITE_oFFs
\r
1108 # define PNG_WRITE_oFFs_SUPPORTED
\r
1109 # ifndef PNG_oFFs_SUPPORTED
\r
1110 # define PNG_oFFs_SUPPORTED
\r
1113 #ifndef PNG_NO_WRITE_pCAL
\r
1114 # define PNG_WRITE_pCAL_SUPPORTED
\r
1115 # ifndef PNG_pCAL_SUPPORTED
\r
1116 # define PNG_pCAL_SUPPORTED
\r
1119 #ifndef PNG_NO_WRITE_sCAL
\r
1120 # define PNG_WRITE_sCAL_SUPPORTED
\r
1121 # ifndef PNG_sCAL_SUPPORTED
\r
1122 # define PNG_sCAL_SUPPORTED
\r
1125 #ifndef PNG_NO_WRITE_pHYs
\r
1126 # define PNG_WRITE_pHYs_SUPPORTED
\r
1127 # ifndef PNG_pHYs_SUPPORTED
\r
1128 # define PNG_pHYs_SUPPORTED
\r
1131 #ifndef PNG_NO_WRITE_sBIT
\r
1132 # define PNG_WRITE_sBIT_SUPPORTED
\r
1133 # ifndef PNG_sBIT_SUPPORTED
\r
1134 # define PNG_sBIT_SUPPORTED
\r
1137 #ifndef PNG_NO_WRITE_sPLT
\r
1138 # define PNG_WRITE_sPLT_SUPPORTED
\r
1139 # ifndef PNG_sPLT_SUPPORTED
\r
1140 # define PNG_sPLT_SUPPORTED
\r
1143 #ifndef PNG_NO_WRITE_sRGB
\r
1144 # define PNG_WRITE_sRGB_SUPPORTED
\r
1145 # ifndef PNG_sRGB_SUPPORTED
\r
1146 # define PNG_sRGB_SUPPORTED
\r
1149 #ifndef PNG_NO_WRITE_tEXt
\r
1150 # define PNG_WRITE_tEXt_SUPPORTED
\r
1151 # ifndef PNG_tEXt_SUPPORTED
\r
1152 # define PNG_tEXt_SUPPORTED
\r
1155 #ifndef PNG_NO_WRITE_tIME
\r
1156 # define PNG_WRITE_tIME_SUPPORTED
\r
1157 # ifndef PNG_tIME_SUPPORTED
\r
1158 # define PNG_tIME_SUPPORTED
\r
1161 #ifndef PNG_NO_WRITE_tRNS
\r
1162 # define PNG_WRITE_tRNS_SUPPORTED
\r
1163 # ifndef PNG_tRNS_SUPPORTED
\r
1164 # define PNG_tRNS_SUPPORTED
\r
1167 #ifndef PNG_NO_WRITE_zTXt
\r
1168 # define PNG_WRITE_zTXt_SUPPORTED
\r
1169 # ifndef PNG_zTXt_SUPPORTED
\r
1170 # define PNG_zTXt_SUPPORTED
\r
1173 #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
\r
1174 defined(PNG_WRITE_zTXt_SUPPORTED)
\r
1175 # define PNG_WRITE_TEXT_SUPPORTED
\r
1176 # ifndef PNG_TEXT_SUPPORTED
\r
1177 # define PNG_TEXT_SUPPORTED
\r
1181 #ifdef PNG_WRITE_tIME_SUPPORTED
\r
1182 # ifndef PNG_NO_CONVERT_tIME
\r
1183 # ifndef _WIN32_WCE
\r
1184 /* The "tm" structure is not supported on WindowsCE */
\r
1185 # ifndef PNG_CONVERT_tIME_SUPPORTED
\r
1186 # define PNG_CONVERT_tIME_SUPPORTED
\r
1192 #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
\r
1194 #if !defined(PNG_NO_WRITE_FILTER) && !defined(PNG_WRITE_FILTER_SUPPORTED)
\r
1195 # define PNG_WRITE_FILTER_SUPPORTED
\r
1198 #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
\r
1199 # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
\r
1200 # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
\r
1201 # define PNG_UNKNOWN_CHUNKS_SUPPORTED
\r
1205 #ifndef PNG_NO_HANDLE_AS_UNKNOWN
\r
1206 # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
\r
1207 # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
\r
1210 #endif /* PNG_WRITE_SUPPORTED */
\r
1212 /* Turn this off to disable png_read_png() and
\r
1213 * png_write_png() and leave the row_pointers member
\r
1214 * out of the info structure.
\r
1216 #ifndef PNG_NO_INFO_IMAGE
\r
1217 # define PNG_INFO_IMAGE_SUPPORTED
\r
1220 /* Need the time information for converting tIME chunks */
\r
1221 #ifdef PNG_CONVERT_tIME_SUPPORTED
\r
1222 /* "time.h" functions are not supported on WindowsCE */
\r
1223 # include <time.h>
\r
1226 /* Some typedefs to get us started. These should be safe on most of the
\r
1227 * common platforms. The typedefs should be at least as large as the
\r
1228 * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
\r
1229 * don't have to be exactly that size. Some compilers dislike passing
\r
1230 * unsigned shorts as function parameters, so you may be better off using
\r
1231 * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may
\r
1232 * want to have unsigned int for png_uint_32 instead of unsigned long.
\r
1235 typedef unsigned long png_uint_32;
\r
1236 typedef long png_int_32;
\r
1237 typedef unsigned short png_uint_16;
\r
1238 typedef short png_int_16;
\r
1239 typedef unsigned char png_byte;
\r
1241 /* This is usually size_t. It is typedef'ed just in case you need it to
\r
1242 change (I'm not sure if you will or not, so I thought I'd be safe) */
\r
1244 typedef PNG_SIZE_T png_size_t;
\r
1245 # define png_sizeof(x) png_convert_size(sizeof(x))
\r
1247 typedef size_t png_size_t;
\r
1248 # define png_sizeof(x) sizeof(x)
\r
1251 /* The following is needed for medium model support. It cannot be in the
\r
1252 * PNG_INTERNAL section. Needs modification for other compilers besides
\r
1253 * MSC. Model independent support declares all arrays and pointers to be
\r
1254 * large using the far keyword. The zlib version used must also support
\r
1255 * model independent data. As of version zlib 1.0.4, the necessary changes
\r
1256 * have been made in zlib. The USE_FAR_KEYWORD define triggers other
\r
1257 * changes that are needed. (Tim Wegner)
\r
1260 /* Separate compiler dependencies (problem here is that zlib.h always
\r
1261 defines FAR. (SJT) */
\r
1262 #ifdef __BORLANDC__
\r
1263 # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
\r
1268 /* GRR: why is Cygwin in here? Cygwin is not Borland C... */
\r
1269 # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
\r
1270 # define PNG_MAX_MALLOC_64K
\r
1273 # define FAR __far
\r
1275 # define USE_FAR_KEYWORD
\r
1276 # endif /* LDATA != 1 */
\r
1277 /* Possibly useful for moving data out of default segment.
\r
1278 * Uncomment it if you want. Could also define FARDATA as
\r
1279 * const if your compiler supports it. (SJT)
\r
1280 # define FARDATA FAR
\r
1282 # endif /* __WIN32__, __FLAT__, __CYGWIN__ */
\r
1283 #endif /* __BORLANDC__ */
\r
1286 /* Suggest testing for specific compiler first before testing for
\r
1287 * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM,
\r
1288 * making reliance oncertain keywords suspect. (SJT)
\r
1291 /* MSC Medium model */
\r
1294 # define USE_FAR_KEYWORD
\r
1295 # define FARDATA FAR
\r
1300 /* SJT: default case */
\r
1305 /* At this point FAR is always defined */
\r
1310 /* Typedef for floating-point numbers that are converted
\r
1311 to fixed-point with a multiple of 100,000, e.g., int_gamma */
\r
1312 typedef png_int_32 png_fixed_point;
\r
1314 /* Add typedefs for pointers */
\r
1315 typedef void FAR * png_voidp;
\r
1316 typedef png_byte FAR * png_bytep;
\r
1317 typedef png_uint_32 FAR * png_uint_32p;
\r
1318 typedef png_int_32 FAR * png_int_32p;
\r
1319 typedef png_uint_16 FAR * png_uint_16p;
\r
1320 typedef png_int_16 FAR * png_int_16p;
\r
1321 typedef PNG_CONST char FAR * png_const_charp;
\r
1322 typedef char FAR * png_charp;
\r
1323 typedef png_fixed_point FAR * png_fixed_point_p;
\r
1325 #ifndef PNG_NO_STDIO
\r
1327 typedef HANDLE png_FILE_p;
\r
1329 typedef FILE * png_FILE_p;
\r
1333 #ifdef PNG_FLOATING_POINT_SUPPORTED
\r
1334 typedef double FAR * png_doublep;
\r
1337 /* Pointers to pointers; i.e. arrays */
\r
1338 typedef png_byte FAR * FAR * png_bytepp;
\r
1339 typedef png_uint_32 FAR * FAR * png_uint_32pp;
\r
1340 typedef png_int_32 FAR * FAR * png_int_32pp;
\r
1341 typedef png_uint_16 FAR * FAR * png_uint_16pp;
\r
1342 typedef png_int_16 FAR * FAR * png_int_16pp;
\r
1343 typedef PNG_CONST char FAR * FAR * png_const_charpp;
\r
1344 typedef char FAR * FAR * png_charpp;
\r
1345 typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
\r
1346 #ifdef PNG_FLOATING_POINT_SUPPORTED
\r
1347 typedef double FAR * FAR * png_doublepp;
\r
1350 /* Pointers to pointers to pointers; i.e., pointer to array */
\r
1351 typedef char FAR * FAR * FAR * png_charppp;
\r
1353 #if defined(PNG_1_0_X) || defined(PNG_1_2_X)
\r
1354 /* SPC - Is this stuff deprecated? */
\r
1355 /* It'll be removed as of libpng-1.4.0 - GR-P */
\r
1356 /* libpng typedefs for types in zlib. If zlib changes
\r
1357 * or another compression library is used, then change these.
\r
1358 * Eliminates need to change all the source files.
\r
1360 typedef charf * png_zcharp;
\r
1361 typedef charf * FAR * png_zcharpp;
\r
1362 typedef z_stream FAR * png_zstreamp;
\r
1363 #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
\r
1366 * Define PNG_BUILD_DLL if the module being built is a Windows
\r
1369 * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
\r
1370 * It is equivalent to Microsoft predefined macro _DLL that is
\r
1371 * automatically defined when you compile using the share
\r
1372 * version of the CRT (C Run-Time library)
\r
1374 * The cygwin mods make this behavior a little different:
\r
1375 * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
\r
1376 * Define PNG_STATIC if you are building a static library for use with cygwin,
\r
1377 * -or- if you are building an application that you want to link to the
\r
1379 * PNG_USE_DLL is defined by default (no user action needed) unless one of
\r
1380 * the other flags is defined.
\r
1383 #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
\r
1386 /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
\r
1387 * When building a static lib, default to no GLOBAL ARRAYS, but allow
\r
1388 * command-line override
\r
1391 # ifndef PNG_STATIC
\r
1392 # ifdef PNG_USE_GLOBAL_ARRAYS
\r
1393 # undef PNG_USE_GLOBAL_ARRAYS
\r
1395 # ifndef PNG_USE_LOCAL_ARRAYS
\r
1396 # define PNG_USE_LOCAL_ARRAYS
\r
1399 # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
\r
1400 # ifdef PNG_USE_GLOBAL_ARRAYS
\r
1401 # undef PNG_USE_GLOBAL_ARRAYS
\r
1405 # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
\r
1406 # define PNG_USE_LOCAL_ARRAYS
\r
1410 /* Do not use global arrays (helps with building DLL's)
\r
1411 * They are no longer used in libpng itself, since version 1.0.5c,
\r
1412 * but might be required for some pre-1.0.5c applications.
\r
1414 #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
\r
1415 # if defined(PNG_NO_GLOBAL_ARRAYS) || \
\r
1416 (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
\r
1417 # define PNG_USE_LOCAL_ARRAYS
\r
1419 # define PNG_USE_GLOBAL_ARRAYS
\r
1425 # define PNGAPI __cdecl
\r
1426 # undef PNG_IMPEXP
\r
1427 # define PNG_IMPEXP
\r
1430 /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
\r
1431 * you may get warnings regarding the linkage of png_zalloc and png_zfree.
\r
1432 * Don't ignore those warnings; you must also reset the default calling
\r
1433 * convention in your compiler to match your PNGAPI, and you must build
\r
1434 * zlib and your applications the same way you build libpng.
\r
1437 #if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
\r
1438 # ifndef PNG_NO_MODULEDEF
\r
1439 # define PNG_NO_MODULEDEF
\r
1443 #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
\r
1444 # define PNG_IMPEXP
\r
1447 #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
\r
1448 (( defined(_Windows) || defined(_WINDOWS) || \
\r
1449 defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
\r
1452 # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
\r
1453 # define PNGAPI __cdecl
\r
1455 # define PNGAPI _cdecl
\r
1459 # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
\r
1460 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
\r
1461 # define PNG_IMPEXP
\r
1464 # ifndef PNG_IMPEXP
\r
1466 # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol
\r
1467 # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol
\r
1469 /* Borland/Microsoft */
\r
1470 # if defined(_MSC_VER) || defined(__BORLANDC__)
\r
1471 # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
\r
1472 # define PNG_EXPORT PNG_EXPORT_TYPE1
\r
1474 # define PNG_EXPORT PNG_EXPORT_TYPE2
\r
1475 # ifdef PNG_BUILD_DLL
\r
1476 # define PNG_IMPEXP __export
\r
1478 # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
\r
1480 # endif /* Exists in Borland C++ for
\r
1481 C++ classes (== huge) */
\r
1485 # ifndef PNG_IMPEXP
\r
1486 # ifdef PNG_BUILD_DLL
\r
1487 # define PNG_IMPEXP __declspec(dllexport)
\r
1489 # define PNG_IMPEXP __declspec(dllimport)
\r
1492 # endif /* PNG_IMPEXP */
\r
1493 #else /* !(DLL || non-cygwin WINDOWS) */
\r
1494 # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
\r
1496 # define PNGAPI _System
\r
1499 # if 0 /* ... other platforms, with other meanings */
\r
1507 #ifndef PNG_IMPEXP
\r
1508 # define PNG_IMPEXP
\r
1511 #ifdef PNG_BUILDSYMS
\r
1512 # ifndef PNG_EXPORT
\r
1513 # define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
\r
1515 # ifdef PNG_USE_GLOBAL_ARRAYS
\r
1516 # ifndef PNG_EXPORT_VAR
\r
1517 # define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
\r
1522 #ifndef PNG_EXPORT
\r
1523 # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
\r
1526 #ifdef PNG_USE_GLOBAL_ARRAYS
\r
1527 # ifndef PNG_EXPORT_VAR
\r
1528 # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
\r
1532 #ifdef PNG_PEDANTIC_WARNINGS
\r
1533 # ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED
\r
1534 # define PNG_PEDANTIC_WARNINGS_SUPPORTED
\r
1538 #ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED
\r
1539 /* Support for compiler specific function attributes. These are used
\r
1540 * so that where compiler support is available incorrect use of API
\r
1541 * functions in png.h will generate compiler warnings. Added at libpng
\r
1545 # ifndef PNG_USE_RESULT
\r
1546 # define PNG_USE_RESULT __attribute__((__warn_unused_result__))
\r
1548 # ifndef PNG_NORETURN
\r
1549 # define PNG_NORETURN __attribute__((__noreturn__))
\r
1551 # ifndef PNG_ALLOCATED
\r
1552 # define PNG_ALLOCATED __attribute__((__malloc__))
\r
1555 /* This specifically protects structure members that should only be
\r
1556 * accessed from within the library, therefore should be empty during
\r
1557 * a library build.
\r
1559 # ifndef PNG_DEPRECATED
\r
1560 # define PNG_DEPRECATED __attribute__((__deprecated__))
\r
1562 # ifndef PNG_DEPSTRUCT
\r
1563 # define PNG_DEPSTRUCT __attribute__((__deprecated__))
\r
1565 # ifndef PNG_PRIVATE
\r
1566 # if 0 /* Doesn't work so we use deprecated instead*/
\r
1567 # define PNG_PRIVATE \
\r
1568 __attribute__((warning("This function is not exported by libpng.")))
\r
1570 # define PNG_PRIVATE \
\r
1571 __attribute__((__deprecated__))
\r
1573 # endif /* PNG_PRIVATE */
\r
1574 # endif /* __GNUC__ */
\r
1575 #endif /* PNG_PEDANTIC_WARNINGS */
\r
1577 #ifndef PNG_DEPRECATED
\r
1578 # define PNG_DEPRECATED /* Use of this function is deprecated */
\r
1580 #ifndef PNG_USE_RESULT
\r
1581 # define PNG_USE_RESULT /* The result of this function must be checked */
\r
1583 #ifndef PNG_NORETURN
\r
1584 # define PNG_NORETURN /* This function does not return */
\r
1586 #ifndef PNG_ALLOCATED
\r
1587 # define PNG_ALLOCATED /* The result of the function is new memory */
\r
1589 #ifndef PNG_DEPSTRUCT
\r
1590 # define PNG_DEPSTRUCT /* Access to this struct member is deprecated */
\r
1592 #ifndef PNG_PRIVATE
\r
1593 # define PNG_PRIVATE /* This is a private libpng function */
\r
1596 /* User may want to use these so they are not in PNG_INTERNAL. Any library
\r
1597 * functions that are passed far data must be model independent.
\r
1601 # define PNG_ABORT() abort()
\r
1604 #ifdef PNG_SETJMP_SUPPORTED
\r
1605 # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
\r
1607 # define png_jmpbuf(png_ptr) \
\r
1608 (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
\r
1611 #ifdef USE_FAR_KEYWORD /* memory model independent fns */
\r
1612 /* Use this to make far-to-near assignments */
\r
1614 # define NOCHECK 0
\r
1615 # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
\r
1616 # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
\r
1617 # define png_snprintf _fsnprintf /* Added to v 1.2.19 */
\r
1618 # define png_strlen _fstrlen
\r
1619 # define png_memcmp _fmemcmp /* SJT: added */
\r
1620 # define png_memcpy _fmemcpy
\r
1621 # define png_memset _fmemset
\r
1622 #else /* Use the usual functions */
\r
1623 # define CVT_PTR(ptr) (ptr)
\r
1624 # define CVT_PTR_NOCHECK(ptr) (ptr)
\r
1625 # ifndef PNG_NO_SNPRINTF
\r
1627 # define png_snprintf _snprintf /* Added to v 1.2.19 */
\r
1628 # define png_snprintf2 _snprintf
\r
1629 # define png_snprintf6 _snprintf
\r
1631 # define png_snprintf snprintf /* Added to v 1.2.19 */
\r
1632 # define png_snprintf2 snprintf
\r
1633 # define png_snprintf6 snprintf
\r
1636 /* You don't have or don't want to use snprintf(). Caution: Using
\r
1637 * sprintf instead of snprintf exposes your application to accidental
\r
1638 * or malevolent buffer overflows. If you don't have snprintf()
\r
1639 * as a general rule you should provide one (you can get one from
\r
1640 * Portable OpenSSH).
\r
1642 # define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
\r
1643 # define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
\r
1644 # define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
\r
1645 sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
\r
1647 # define png_strlen strlen
\r
1648 # define png_memcmp memcmp /* SJT: added */
\r
1649 # define png_memcpy memcpy
\r
1650 # define png_memset memset
\r
1652 /* End of memory model independent support */
\r
1654 /* Just a little check that someone hasn't tried to define something
\r
1657 #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
\r
1658 # undef PNG_ZBUF_SIZE
\r
1659 # define PNG_ZBUF_SIZE 65536L
\r
1662 /* Added at libpng-1.2.8 */
\r
1663 #endif /* PNG_VERSION_INFO_ONLY */
\r
1665 #endif /* PNGCONF_H */
\r