| 1 | /* pngconf.h - machine configurable file for libpng
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| 2 | *
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| 3 | * libpng 1.2.5 - October 3, 2002
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| 4 | * For conditions of distribution and use, see copyright notice in png.h
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| 5 | * Copyright (c) 1998-2002 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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| 8 | */
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| 9 |
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| 10 | /* Any machine specific code is near the front of this file, so if you
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| 11 | * are configuring libpng for a machine, you may want to read the section
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| 12 | * starting here down to where it starts to typedef png_color, png_text,
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| 13 | * and png_info.
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| 14 | */
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| 15 |
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| 16 | #ifndef PNGCONF_H
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| 17 | #define PNGCONF_H
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| 18 |
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| 19 | /* This is the size of the compression buffer, and thus the size of
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| 20 | * an IDAT chunk. Make this whatever size you feel is best for your
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| 21 | * machine. One of these will be allocated per png_struct. When this
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| 22 | * is full, it writes the data to the disk, and does some other
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| 23 | * calculations. Making this an extremely small size will slow
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| 24 | * the library down, but you may want to experiment to determine
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| 25 | * where it becomes significant, if you are concerned with memory
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| 26 | * usage. Note that zlib allocates at least 32Kb also. For readers,
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| 27 | * this describes the size of the buffer available to read the data in.
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| 28 | * Unless this gets smaller than the size of a row (compressed),
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| 29 | * it should not make much difference how big this is.
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| 30 | */
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| 31 |
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| 32 | #ifndef PNG_ZBUF_SIZE
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| 33 | # define PNG_ZBUF_SIZE 8192
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| 34 | #endif
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| 35 |
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| 36 | /* Enable if you want a write-only libpng */
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| 37 |
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| 38 | #ifndef PNG_NO_READ_SUPPORTED
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| 39 | # define PNG_READ_SUPPORTED
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| 40 | #endif
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| 41 |
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| 42 | /* Enable if you want a read-only libpng */
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| 43 |
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| 44 | #ifndef PNG_NO_WRITE_SUPPORTED
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| 45 | # define PNG_WRITE_SUPPORTED
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| 46 | #endif
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| 47 |
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| 48 | /* Enabled by default in 1.2.0. You can disable this if you don't need to
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| 49 | support PNGs that are embedded in MNG datastreams */
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| 50 | #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)
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| 51 | # ifndef PNG_MNG_FEATURES_SUPPORTED
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| 52 | # define PNG_MNG_FEATURES_SUPPORTED
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| 53 | # endif
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| 54 | #endif
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| 55 |
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| 56 | #ifndef PNG_NO_FLOATING_POINT_SUPPORTED
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| 57 | # ifndef PNG_FLOATING_POINT_SUPPORTED
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| 58 | # define PNG_FLOATING_POINT_SUPPORTED
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| 59 | # endif
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| 60 | #endif
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| 61 |
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| 62 | /* If you are running on a machine where you cannot allocate more
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| 63 | * than 64K of memory at once, uncomment this. While libpng will not
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| 64 | * normally need that much memory in a chunk (unless you load up a very
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| 65 | * large file), zlib needs to know how big of a chunk it can use, and
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| 66 | * libpng thus makes sure to check any memory allocation to verify it
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| 67 | * will fit into memory.
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| 68 | #define PNG_MAX_MALLOC_64K
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| 69 | */
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| 70 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
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| 71 | # define PNG_MAX_MALLOC_64K
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| 72 | #endif
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| 73 |
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| 74 | /* Special munging to support doing things the 'cygwin' way:
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| 75 | * 'Normal' png-on-win32 defines/defaults:
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| 76 | * PNG_BUILD_DLL -- building dll
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| 77 | * PNG_USE_DLL -- building an application, linking to dll
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| 78 | * (no define) -- building static library, or building an
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| 79 | * application and linking to the static lib
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| 80 | * 'Cygwin' defines/defaults:
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| 81 | * PNG_BUILD_DLL -- (ignored) building the dll
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| 82 | * (no define) -- (ignored) building an application, linking to the dll
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| 83 | * PNG_STATIC -- (ignored) building the static lib, or building an
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| 84 | * application that links to the static lib.
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| 85 | * ALL_STATIC -- (ignored) building various static libs, or building an
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| 86 | * application that links to the static libs.
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| 87 | * Thus,
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| 88 | * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
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| 89 | * this bit of #ifdefs will define the 'correct' config variables based on
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| 90 | * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
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| 91 | * unnecessary.
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| 92 | *
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| 93 | * Also, the precedence order is:
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| 94 | * ALL_STATIC (since we can't #undef something outside our namespace)
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| 95 | * PNG_BUILD_DLL
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| 96 | * PNG_STATIC
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| 97 | * (nothing) == PNG_USE_DLL
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| 98 | *
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| 99 | * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
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| 100 | * of auto-import in binutils, we no longer need to worry about
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| 101 | * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
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| 102 | * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
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| 103 | * to __declspec() stuff. However, we DO need to worry about
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| 104 | * PNG_BUILD_DLL and PNG_STATIC because those change some defaults
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| 105 | * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
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| 106 | */
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| 107 | #if defined(__CYGWIN__)
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| 108 | # if defined(ALL_STATIC)
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| 109 | # if defined(PNG_BUILD_DLL)
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| 110 | # undef PNG_BUILD_DLL
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| 111 | # endif
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| 112 | # if defined(PNG_USE_DLL)
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| 113 | # undef PNG_USE_DLL
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| 114 | # endif
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| 115 | # if defined(PNG_DLL)
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| 116 | # undef PNG_DLL
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| 117 | # endif
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| 118 | # if !defined(PNG_STATIC)
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| 119 | # define PNG_STATIC
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| 120 | # endif
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| 121 | # else
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| 122 | # if defined (PNG_BUILD_DLL)
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| 123 | # if defined(PNG_STATIC)
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| 124 | # undef PNG_STATIC
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| 125 | # endif
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| 126 | # if defined(PNG_USE_DLL)
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| 127 | # undef PNG_USE_DLL
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| 128 | # endif
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| 129 | # if !defined(PNG_DLL)
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| 130 | # define PNG_DLL
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| 131 | # endif
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| 132 | # else
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| 133 | # if defined(PNG_STATIC)
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| 134 | # if defined(PNG_USE_DLL)
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| 135 | # undef PNG_USE_DLL
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| 136 | # endif
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| 137 | # if defined(PNG_DLL)
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| 138 | # undef PNG_DLL
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| 139 | # endif
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| 140 | # else
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| 141 | # if !defined(PNG_USE_DLL)
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| 142 | # define PNG_USE_DLL
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| 143 | # endif
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| 144 | # if !defined(PNG_DLL)
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| 145 | # define PNG_DLL
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| 146 | # endif
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| 147 | # endif
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| 148 | # endif
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| 149 | # endif
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| 150 | #endif
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| 151 |
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| 152 | /* This protects us against compilers that run on a windowing system
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| 153 | * and thus don't have or would rather us not use the stdio types:
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| 154 | * stdin, stdout, and stderr. The only one currently used is stderr
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| 155 | * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will
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| 156 | * prevent these from being compiled and used. #defining PNG_NO_STDIO
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| 157 | * will also prevent these, plus will prevent the entire set of stdio
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| 158 | * macros and functions (FILE *, printf, etc.) from being compiled and used,
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| 159 | * unless (PNG_DEBUG > 0) has been #defined.
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| 160 | *
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| 161 | * #define PNG_NO_CONSOLE_IO
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| 162 | * #define PNG_NO_STDIO
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| 163 | */
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| 164 |
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| 165 | #if defined(_WIN32_WCE)
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| 166 | # include <windows.h>
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| 167 | /* Console I/O functions are not supported on WindowsCE */
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| 168 | # define PNG_NO_CONSOLE_IO
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| 169 | # ifdef PNG_DEBUG
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| 170 | # undef PNG_DEBUG
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| 171 | # endif
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| 172 | #endif
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| 173 |
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| 174 | #ifdef PNG_BUILD_DLL
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| 175 | # ifndef PNG_CONSOLE_IO_SUPPORTED
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| 176 | # ifndef PNG_NO_CONSOLE_IO
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| 177 | # define PNG_NO_CONSOLE_IO
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| 178 | # endif
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| 179 | # endif
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| 180 | #endif
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| 181 |
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| 182 | # ifdef PNG_NO_STDIO
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| 183 | # ifndef PNG_NO_CONSOLE_IO
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| 184 | # define PNG_NO_CONSOLE_IO
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| 185 | # endif
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| 186 | # ifdef PNG_DEBUG
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| 187 | # if (PNG_DEBUG > 0)
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| 188 | # include <stdio.h>
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| 189 | # endif
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| 190 | # endif
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| 191 | # else
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| 192 | # if !defined(_WIN32_WCE)
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| 193 | /* "stdio.h" functions are not supported on WindowsCE */
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| 194 | # include <stdio.h>
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| 195 | # endif
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| 196 | # endif
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| 197 |
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| 198 | /* This macro protects us against machines that don't have function
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| 199 | * prototypes (ie K&R style headers). If your compiler does not handle
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| 200 | * function prototypes, define this macro and use the included ansi2knr.
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| 201 | * I've always been able to use _NO_PROTO as the indicator, but you may
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| 202 | * need to drag the empty declaration out in front of here, or change the
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| 203 | * ifdef to suit your own needs.
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| 204 | */
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| 205 | #ifndef PNGARG
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| 206 |
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| 207 | #ifdef OF /* zlib prototype munger */
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| 208 | # define PNGARG(arglist) OF(arglist)
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| 209 | #else
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| 210 |
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| 211 | #ifdef _NO_PROTO
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| 212 | # define PNGARG(arglist) ()
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| 213 | # ifndef PNG_TYPECAST_NULL
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| 214 | # define PNG_TYPECAST_NULL
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| 215 | # endif
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| 216 | #else
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| 217 | # define PNGARG(arglist) arglist
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| 218 | #endif /* _NO_PROTO */
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| 219 |
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| 220 | #endif /* OF */
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| 221 |
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| 222 | #endif /* PNGARG */
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| 223 |
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| 224 | /* Try to determine if we are compiling on a Mac. Note that testing for
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| 225 | * just __MWERKS__ is not good enough, because the Codewarrior is now used
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| 226 | * on non-Mac platforms.
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| 227 | */
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| 228 | #ifndef MACOS
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| 229 | # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
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| 230 | defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
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| 231 | # define MACOS
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| 232 | # endif
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| 233 | #endif
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| 234 |
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| 235 | /* enough people need this for various reasons to include it here */
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| 236 | #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
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| 237 | # include <sys/types.h>
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| 238 | #endif
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| 239 |
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| 240 | #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)
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| 241 | # define PNG_SETJMP_SUPPORTED
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| 242 | #endif
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| 243 |
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| 244 | #ifdef PNG_SETJMP_SUPPORTED
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| 245 | /* This is an attempt to force a single setjmp behaviour on Linux. If
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| 246 | * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
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| 247 | */
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| 248 |
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| 249 | # ifdef __linux__
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| 250 | # ifdef _BSD_SOURCE
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| 251 | # define PNG_SAVE_BSD_SOURCE
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| 252 | # undef _BSD_SOURCE
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| 253 | # endif
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| 254 | # ifdef _SETJMP_H
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| 255 | __png.h__ already includes setjmp.h;
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| 256 | __dont__ include it again.;
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| 257 | # endif
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| 258 | # endif /* __linux__ */
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| 259 |
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| 260 | /* include setjmp.h for error handling */
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| 261 | # include <setjmp.h>
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| 262 |
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| 263 | # ifdef __linux__
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| 264 | # ifdef PNG_SAVE_BSD_SOURCE
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| 265 | # define _BSD_SOURCE
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| 266 | # undef PNG_SAVE_BSD_SOURCE
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| 267 | # endif
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| 268 | # endif /* __linux__ */
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| 269 | #endif /* PNG_SETJMP_SUPPORTED */
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| 270 |
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| 271 | #ifdef BSD
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| 272 | # include <strings.h>
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| 273 | #else
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| 274 | # include <string.h>
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| 275 | #endif
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| 276 |
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| 277 | /* Other defines for things like memory and the like can go here. */
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| 278 | #ifdef PNG_INTERNAL
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| 279 |
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| 280 | #include <stdlib.h>
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| 281 |
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| 282 | /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
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| 283 | * aren't usually used outside the library (as far as I know), so it is
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| 284 | * debatable if they should be exported at all. In the future, when it is
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| 285 | * possible to have run-time registry of chunk-handling functions, some of
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| 286 | * these will be made available again.
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| 287 | #define PNG_EXTERN extern
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| 288 | */
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| 289 | #define PNG_EXTERN
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| 290 |
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| 291 | /* Other defines specific to compilers can go here. Try to keep
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| 292 | * them inside an appropriate ifdef/endif pair for portability.
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| 293 | */
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| 294 |
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| 295 | #if defined(PNG_FLOATING_POINT_SUPPORTED)
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| 296 | # if defined(MACOS)
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| 297 | /* We need to check that <math.h> hasn't already been included earlier
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| 298 | * as it seems it doesn't agree with <fp.h>, yet we should really use
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| 299 | * <fp.h> if possible.
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| 300 | */
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| 301 | # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
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| 302 | # include <fp.h>
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| 303 | # endif
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| 304 | # else
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| 305 | # include <math.h>
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| 306 | # endif
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| 307 | # if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
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| 308 | /* Amiga SAS/C: We must include builtin FPU functions when compiling using
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| 309 | * MATH=68881
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| 310 | */
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| 311 | # include <m68881.h>
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| 312 | # endif
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| 313 | #endif
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| 314 |
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| 315 | /* Codewarrior on NT has linking problems without this. */
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| 316 | #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
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| 317 | # define PNG_ALWAYS_EXTERN
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| 318 | #endif
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| 319 |
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| 320 | /* For some reason, Borland C++ defines memcmp, etc. in mem.h, not
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| 321 | * stdlib.h like it should (I think). Or perhaps this is a C++
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| 322 | * "feature"?
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| 323 | */
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| 324 | #ifdef __TURBOC__
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| 325 | # include <mem.h>
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| 326 | #endif
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| 327 |
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| 328 | #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
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| 329 | defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
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| 330 | # include <malloc.h>
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| 331 | #endif
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| 332 |
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| 333 | /* This controls how fine the dithering gets. As this allocates
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| 334 | * a largish chunk of memory (32K), those who are not as concerned
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| 335 | * with dithering quality can decrease some or all of these.
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| 336 | */
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| 337 | #ifndef PNG_DITHER_RED_BITS
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| 338 | # define PNG_DITHER_RED_BITS 5
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| 339 | #endif
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| 340 | #ifndef PNG_DITHER_GREEN_BITS
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| 341 | # define PNG_DITHER_GREEN_BITS 5
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| 342 | #endif
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| 343 | #ifndef PNG_DITHER_BLUE_BITS
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| 344 | # define PNG_DITHER_BLUE_BITS 5
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| 345 | #endif
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| 346 |
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| 347 | /* This controls how fine the gamma correction becomes when you
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| 348 | * are only interested in 8 bits anyway. Increasing this value
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| 349 | * results in more memory being used, and more pow() functions
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| 350 | * being called to fill in the gamma tables. Don't set this value
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| 351 | * less then 8, and even that may not work (I haven't tested it).
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| 352 | */
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| 353 |
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| 354 | #ifndef PNG_MAX_GAMMA_8
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| 355 | # define PNG_MAX_GAMMA_8 11
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| 356 | #endif
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| 357 |
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| 358 | /* This controls how much a difference in gamma we can tolerate before
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| 359 | * we actually start doing gamma conversion.
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| 360 | */
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| 361 | #ifndef PNG_GAMMA_THRESHOLD
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| 362 | # define PNG_GAMMA_THRESHOLD 0.05
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| 363 | #endif
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| 364 |
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| 365 | #endif /* PNG_INTERNAL */
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| 366 |
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| 367 | /* The following uses const char * instead of char * for error
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| 368 | * and warning message functions, so some compilers won't complain.
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| 369 | * If you do not want to use const, define PNG_NO_CONST here.
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| 370 | */
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| 371 |
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| 372 | #ifndef PNG_NO_CONST
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| 373 | # define PNG_CONST const
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| 374 | #else
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| 375 | # define PNG_CONST
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| 376 | #endif
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| 377 |
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| 378 | /* The following defines give you the ability to remove code from the
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| 379 | * library that you will not be using. I wish I could figure out how to
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| 380 | * automate this, but I can't do that without making it seriously hard
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| 381 | * on the users. So if you are not using an ability, change the #define
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| 382 | * to and #undef, and that part of the library will not be compiled. If
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| 383 | * your linker can't find a function, you may want to make sure the
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| 384 | * ability is defined here. Some of these depend upon some others being
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| 385 | * defined. I haven't figured out all the interactions here, so you may
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| 386 | * have to experiment awhile to get everything to compile. If you are
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| 387 | * creating or using a shared library, you probably shouldn't touch this,
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| 388 | * as it will affect the size of the structures, and this will cause bad
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| 389 | * things to happen if the library and/or application ever change.
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| 390 | */
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| 391 |
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| 392 | /* Any features you will not be using can be undef'ed here */
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| 393 |
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| 394 | /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
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| 395 | * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
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| 396 | * on the compile line, then pick and choose which ones to define without
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| 397 | * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED
|
|---|
| 398 | * if you only want to have a png-compliant reader/writer but don't need
|
|---|
| 399 | * any of the extra transformations. This saves about 80 kbytes in a
|
|---|
| 400 | * typical installation of the library. (PNG_NO_* form added in version
|
|---|
| 401 | * 1.0.1c, for consistency)
|
|---|
| 402 | */
|
|---|
| 403 |
|
|---|
| 404 | /* The size of the png_text structure changed in libpng-1.0.6 when
|
|---|
| 405 | * iTXt is supported. It is turned off by default, to support old apps
|
|---|
| 406 | * that malloc the png_text structure instead of calling png_set_text()
|
|---|
| 407 | * and letting libpng malloc it. It will be turned on by default in
|
|---|
| 408 | * libpng-1.3.0.
|
|---|
| 409 | */
|
|---|
| 410 |
|
|---|
| 411 | #ifndef PNG_iTXt_SUPPORTED
|
|---|
| 412 | # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
|
|---|
| 413 | # define PNG_NO_READ_iTXt
|
|---|
| 414 | # endif
|
|---|
| 415 | # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
|
|---|
| 416 | # define PNG_NO_WRITE_iTXt
|
|---|
| 417 | # endif
|
|---|
| 418 | #endif
|
|---|
| 419 |
|
|---|
| 420 | /* The following support, added after version 1.0.0, can be turned off here en
|
|---|
| 421 | * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
|
|---|
| 422 | * with old applications that require the length of png_struct and png_info
|
|---|
| 423 | * to remain unchanged.
|
|---|
| 424 | */
|
|---|
| 425 |
|
|---|
| 426 | #ifdef PNG_LEGACY_SUPPORTED
|
|---|
| 427 | # define PNG_NO_FREE_ME
|
|---|
| 428 | # define PNG_NO_READ_UNKNOWN_CHUNKS
|
|---|
| 429 | # define PNG_NO_WRITE_UNKNOWN_CHUNKS
|
|---|
| 430 | # define PNG_NO_READ_USER_CHUNKS
|
|---|
| 431 | # define PNG_NO_READ_iCCP
|
|---|
| 432 | # define PNG_NO_WRITE_iCCP
|
|---|
| 433 | # define PNG_NO_READ_iTXt
|
|---|
| 434 | # define PNG_NO_WRITE_iTXt
|
|---|
| 435 | # define PNG_NO_READ_sCAL
|
|---|
| 436 | # define PNG_NO_WRITE_sCAL
|
|---|
| 437 | # define PNG_NO_READ_sPLT
|
|---|
| 438 | # define PNG_NO_WRITE_sPLT
|
|---|
| 439 | # define PNG_NO_INFO_IMAGE
|
|---|
| 440 | # define PNG_NO_READ_RGB_TO_GRAY
|
|---|
| 441 | # define PNG_NO_READ_USER_TRANSFORM
|
|---|
| 442 | # define PNG_NO_WRITE_USER_TRANSFORM
|
|---|
| 443 | # define PNG_NO_USER_MEM
|
|---|
| 444 | # define PNG_NO_READ_EMPTY_PLTE
|
|---|
| 445 | # define PNG_NO_MNG_FEATURES
|
|---|
| 446 | # define PNG_NO_FIXED_POINT_SUPPORTED
|
|---|
| 447 | #endif
|
|---|
| 448 |
|
|---|
| 449 | /* Ignore attempt to turn off both floating and fixed point support */
|
|---|
| 450 | #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
|
|---|
| 451 | !defined(PNG_NO_FIXED_POINT_SUPPORTED)
|
|---|
| 452 | # define PNG_FIXED_POINT_SUPPORTED
|
|---|
| 453 | #endif
|
|---|
| 454 |
|
|---|
| 455 | #ifndef PNG_NO_FREE_ME
|
|---|
| 456 | # define PNG_FREE_ME_SUPPORTED
|
|---|
| 457 | #endif
|
|---|
| 458 |
|
|---|
| 459 | #if defined(PNG_READ_SUPPORTED)
|
|---|
| 460 |
|
|---|
| 461 | #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
|
|---|
| 462 | !defined(PNG_NO_READ_TRANSFORMS)
|
|---|
| 463 | # define PNG_READ_TRANSFORMS_SUPPORTED
|
|---|
| 464 | #endif
|
|---|
| 465 |
|
|---|
| 466 | #ifdef PNG_READ_TRANSFORMS_SUPPORTED
|
|---|
| 467 | # ifndef PNG_NO_READ_EXPAND
|
|---|
| 468 | # define PNG_READ_EXPAND_SUPPORTED
|
|---|
| 469 | # endif
|
|---|
| 470 | # ifndef PNG_NO_READ_SHIFT
|
|---|
| 471 | # define PNG_READ_SHIFT_SUPPORTED
|
|---|
| 472 | # endif
|
|---|
| 473 | # ifndef PNG_NO_READ_PACK
|
|---|
| 474 | # define PNG_READ_PACK_SUPPORTED
|
|---|
| 475 | # endif
|
|---|
| 476 | # ifndef PNG_NO_READ_BGR
|
|---|
| 477 | # define PNG_READ_BGR_SUPPORTED
|
|---|
| 478 | # endif
|
|---|
| 479 | # ifndef PNG_NO_READ_SWAP
|
|---|
| 480 | # define PNG_READ_SWAP_SUPPORTED
|
|---|
| 481 | # endif
|
|---|
| 482 | # ifndef PNG_NO_READ_PACKSWAP
|
|---|
| 483 | # define PNG_READ_PACKSWAP_SUPPORTED
|
|---|
| 484 | # endif
|
|---|
| 485 | # ifndef PNG_NO_READ_INVERT
|
|---|
| 486 | # define PNG_READ_INVERT_SUPPORTED
|
|---|
| 487 | # endif
|
|---|
| 488 | # ifndef PNG_NO_READ_DITHER
|
|---|
| 489 | # define PNG_READ_DITHER_SUPPORTED
|
|---|
| 490 | # endif
|
|---|
| 491 | # ifndef PNG_NO_READ_BACKGROUND
|
|---|
| 492 | # define PNG_READ_BACKGROUND_SUPPORTED
|
|---|
| 493 | # endif
|
|---|
| 494 | # ifndef PNG_NO_READ_16_TO_8
|
|---|
| 495 | # define PNG_READ_16_TO_8_SUPPORTED
|
|---|
| 496 | # endif
|
|---|
| 497 | # ifndef PNG_NO_READ_FILLER
|
|---|
| 498 | # define PNG_READ_FILLER_SUPPORTED
|
|---|
| 499 | # endif
|
|---|
| 500 | # ifndef PNG_NO_READ_GAMMA
|
|---|
| 501 | # define PNG_READ_GAMMA_SUPPORTED
|
|---|
| 502 | # endif
|
|---|
| 503 | # ifndef PNG_NO_READ_GRAY_TO_RGB
|
|---|
| 504 | # define PNG_READ_GRAY_TO_RGB_SUPPORTED
|
|---|
| 505 | # endif
|
|---|
| 506 | # ifndef PNG_NO_READ_SWAP_ALPHA
|
|---|
| 507 | # define PNG_READ_SWAP_ALPHA_SUPPORTED
|
|---|
| 508 | # endif
|
|---|
| 509 | # ifndef PNG_NO_READ_INVERT_ALPHA
|
|---|
| 510 | # define PNG_READ_INVERT_ALPHA_SUPPORTED
|
|---|
| 511 | # endif
|
|---|
| 512 | # ifndef PNG_NO_READ_STRIP_ALPHA
|
|---|
| 513 | # define PNG_READ_STRIP_ALPHA_SUPPORTED
|
|---|
| 514 | # endif
|
|---|
| 515 | # ifndef PNG_NO_READ_USER_TRANSFORM
|
|---|
| 516 | # define PNG_READ_USER_TRANSFORM_SUPPORTED
|
|---|
| 517 | # endif
|
|---|
| 518 | # ifndef PNG_NO_READ_RGB_TO_GRAY
|
|---|
| 519 | # define PNG_READ_RGB_TO_GRAY_SUPPORTED
|
|---|
| 520 | # endif
|
|---|
| 521 | #endif /* PNG_READ_TRANSFORMS_SUPPORTED */
|
|---|
| 522 |
|
|---|
| 523 | #if !defined(PNG_NO_PROGRESSIVE_READ) && \
|
|---|
| 524 | !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */
|
|---|
| 525 | # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
|
|---|
| 526 | #endif /* about interlacing capability! You'll */
|
|---|
| 527 | /* still have interlacing unless you change the following line: */
|
|---|
| 528 |
|
|---|
| 529 | #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
|
|---|
| 530 |
|
|---|
| 531 | #ifndef PNG_NO_READ_COMPOSITE_NODIV
|
|---|
| 532 | # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
|
|---|
| 533 | # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
|
|---|
| 534 | # endif
|
|---|
| 535 | #endif
|
|---|
| 536 |
|
|---|
| 537 | /* Deprecated, will be removed from version 2.0.0.
|
|---|
| 538 | Use PNG_MNG_FEATURES_SUPPORTED instead. */
|
|---|
| 539 | #ifndef PNG_NO_READ_EMPTY_PLTE
|
|---|
| 540 | # define PNG_READ_EMPTY_PLTE_SUPPORTED
|
|---|
| 541 | #endif
|
|---|
| 542 |
|
|---|
| 543 | #endif /* PNG_READ_SUPPORTED */
|
|---|
| 544 |
|
|---|
| 545 | #if defined(PNG_WRITE_SUPPORTED)
|
|---|
| 546 |
|
|---|
| 547 | # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
|
|---|
| 548 | !defined(PNG_NO_WRITE_TRANSFORMS)
|
|---|
| 549 | # define PNG_WRITE_TRANSFORMS_SUPPORTED
|
|---|
| 550 | #endif
|
|---|
| 551 |
|
|---|
| 552 | #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
|
|---|
| 553 | # ifndef PNG_NO_WRITE_SHIFT
|
|---|
| 554 | # define PNG_WRITE_SHIFT_SUPPORTED
|
|---|
| 555 | # endif
|
|---|
| 556 | # ifndef PNG_NO_WRITE_PACK
|
|---|
| 557 | # define PNG_WRITE_PACK_SUPPORTED
|
|---|
| 558 | # endif
|
|---|
| 559 | # ifndef PNG_NO_WRITE_BGR
|
|---|
| 560 | # define PNG_WRITE_BGR_SUPPORTED
|
|---|
| 561 | # endif
|
|---|
| 562 | # ifndef PNG_NO_WRITE_SWAP
|
|---|
| 563 | # define PNG_WRITE_SWAP_SUPPORTED
|
|---|
| 564 | # endif
|
|---|
| 565 | # ifndef PNG_NO_WRITE_PACKSWAP
|
|---|
| 566 | # define PNG_WRITE_PACKSWAP_SUPPORTED
|
|---|
| 567 | # endif
|
|---|
| 568 | # ifndef PNG_NO_WRITE_INVERT
|
|---|
| 569 | # define PNG_WRITE_INVERT_SUPPORTED
|
|---|
| 570 | # endif
|
|---|
| 571 | # ifndef PNG_NO_WRITE_FILLER
|
|---|
| 572 | # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */
|
|---|
| 573 | # endif
|
|---|
| 574 | # ifndef PNG_NO_WRITE_SWAP_ALPHA
|
|---|
| 575 | # define PNG_WRITE_SWAP_ALPHA_SUPPORTED
|
|---|
| 576 | # endif
|
|---|
| 577 | # ifndef PNG_NO_WRITE_INVERT_ALPHA
|
|---|
| 578 | # define PNG_WRITE_INVERT_ALPHA_SUPPORTED
|
|---|
| 579 | # endif
|
|---|
| 580 | # ifndef PNG_NO_WRITE_USER_TRANSFORM
|
|---|
| 581 | # define PNG_WRITE_USER_TRANSFORM_SUPPORTED
|
|---|
| 582 | # endif
|
|---|
| 583 | #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
|
|---|
| 584 |
|
|---|
| 585 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
|
|---|
| 586 | defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
|
|---|
| 587 | # ifndef PNG_NO_USER_TRANSFORM_PTR
|
|---|
| 588 | # define PNG_USER_TRANSFORM_PTR_SUPPORTED
|
|---|
| 589 | # endif
|
|---|
| 590 | #endif
|
|---|
| 591 |
|
|---|
| 592 | #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
|
|---|
| 593 | encoders, but can cause trouble
|
|---|
| 594 | if left undefined */
|
|---|
| 595 |
|
|---|
| 596 | #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
|
|---|
| 597 | defined(PNG_FLOATING_POINT_SUPPORTED)
|
|---|
| 598 | # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
|
|---|
| 599 | #endif
|
|---|
| 600 |
|
|---|
| 601 | #ifndef PNG_1_0_X
|
|---|
| 602 | #ifndef PNG_NO_ERROR_NUMBERS
|
|---|
| 603 | #define PNG_ERROR_NUMBERS_SUPPORTED
|
|---|
| 604 | #endif
|
|---|
| 605 | #endif /* PNG_1_0_X */
|
|---|
| 606 |
|
|---|
| 607 | #ifndef PNG_NO_WRITE_FLUSH
|
|---|
| 608 | # define PNG_WRITE_FLUSH_SUPPORTED
|
|---|
| 609 | #endif
|
|---|
| 610 |
|
|---|
| 611 | /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
|
|---|
| 612 | #ifndef PNG_NO_WRITE_EMPTY_PLTE
|
|---|
| 613 | # define PNG_WRITE_EMPTY_PLTE_SUPPORTED
|
|---|
| 614 | #endif
|
|---|
| 615 |
|
|---|
| 616 | #endif /* PNG_WRITE_SUPPORTED */
|
|---|
| 617 |
|
|---|
| 618 | #ifndef PNG_NO_STDIO
|
|---|
| 619 | # define PNG_TIME_RFC1123_SUPPORTED
|
|---|
| 620 | #endif
|
|---|
| 621 |
|
|---|
| 622 | /* This adds extra functions in pngget.c for accessing data from the
|
|---|
| 623 | * info pointer (added in version 0.99)
|
|---|
| 624 | * png_get_image_width()
|
|---|
| 625 | * png_get_image_height()
|
|---|
| 626 | * png_get_bit_depth()
|
|---|
| 627 | * png_get_color_type()
|
|---|
| 628 | * png_get_compression_type()
|
|---|
| 629 | * png_get_filter_type()
|
|---|
| 630 | * png_get_interlace_type()
|
|---|
| 631 | * png_get_pixel_aspect_ratio()
|
|---|
| 632 | * png_get_pixels_per_meter()
|
|---|
| 633 | * png_get_x_offset_pixels()
|
|---|
| 634 | * png_get_y_offset_pixels()
|
|---|
| 635 | * png_get_x_offset_microns()
|
|---|
| 636 | * png_get_y_offset_microns()
|
|---|
| 637 | */
|
|---|
| 638 | #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
|
|---|
| 639 | # define PNG_EASY_ACCESS_SUPPORTED
|
|---|
| 640 | #endif
|
|---|
| 641 |
|
|---|
| 642 | /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
|
|---|
| 643 | even when PNG_USE_PNGVCRD or PNG_USE_PNGGCCRD is not defined */
|
|---|
| 644 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
|
|---|
| 645 | # ifndef PNG_ASSEMBLER_CODE_SUPPORTED
|
|---|
| 646 | # define PNG_ASSEMBLER_CODE_SUPPORTED
|
|---|
| 647 | # endif
|
|---|
| 648 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
|
|---|
| 649 | # define PNG_MMX_CODE_SUPPORTED
|
|---|
| 650 | # endif
|
|---|
| 651 | #endif
|
|---|
| 652 |
|
|---|
| 653 | /* If you are sure that you don't need thread safety and you are compiling
|
|---|
| 654 | with PNG_USE_PNGCCRD for an MMX application, you can define this for
|
|---|
| 655 | faster execution. See pnggccrd.c.
|
|---|
| 656 | #define PNG_THREAD_UNSAFE_OK
|
|---|
| 657 | */
|
|---|
| 658 |
|
|---|
| 659 | #if !defined(PNG_1_0_X)
|
|---|
| 660 | #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
|
|---|
| 661 | # define PNG_USER_MEM_SUPPORTED
|
|---|
| 662 | #endif
|
|---|
| 663 | #endif /* PNG_1_0_X */
|
|---|
| 664 |
|
|---|
| 665 | /* These are currently experimental features, define them if you want */
|
|---|
| 666 |
|
|---|
| 667 | /* very little testing */
|
|---|
| 668 | /*
|
|---|
| 669 | #ifdef PNG_READ_SUPPORTED
|
|---|
| 670 | # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
|
|---|
| 671 | # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
|
|---|
| 672 | # endif
|
|---|
| 673 | #endif
|
|---|
| 674 | */
|
|---|
| 675 |
|
|---|
| 676 | /* This is only for PowerPC big-endian and 680x0 systems */
|
|---|
| 677 | /* some testing */
|
|---|
| 678 | /*
|
|---|
| 679 | #ifdef PNG_READ_SUPPORTED
|
|---|
| 680 | # ifndef PNG_PNG_READ_BIG_ENDIAN_SUPPORTED
|
|---|
| 681 | # define PNG_READ_BIG_ENDIAN_SUPPORTED
|
|---|
| 682 | # endif
|
|---|
| 683 | #endif
|
|---|
| 684 | */
|
|---|
| 685 |
|
|---|
| 686 | /* Buggy compilers (e.g., gcc 2.7.2.2) need this */
|
|---|
| 687 | /*
|
|---|
| 688 | #define PNG_NO_POINTER_INDEXING
|
|---|
| 689 | */
|
|---|
| 690 |
|
|---|
| 691 | /* These functions are turned off by default, as they will be phased out. */
|
|---|
| 692 | /*
|
|---|
| 693 | #define PNG_USELESS_TESTS_SUPPORTED
|
|---|
| 694 | #define PNG_CORRECT_PALETTE_SUPPORTED
|
|---|
| 695 | */
|
|---|
| 696 |
|
|---|
| 697 | /* Any chunks you are not interested in, you can undef here. The
|
|---|
| 698 | * ones that allocate memory may be expecially important (hIST,
|
|---|
| 699 | * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info
|
|---|
| 700 | * a bit smaller.
|
|---|
| 701 | */
|
|---|
| 702 |
|
|---|
| 703 | #if defined(PNG_READ_SUPPORTED) && \
|
|---|
| 704 | !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
|
|---|
| 705 | !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
|
|---|
| 706 | # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
|
|---|
| 707 | #endif
|
|---|
| 708 |
|
|---|
| 709 | #if defined(PNG_WRITE_SUPPORTED) && \
|
|---|
| 710 | !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
|
|---|
| 711 | !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
|
|---|
| 712 | # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
|
|---|
| 713 | #endif
|
|---|
| 714 |
|
|---|
| 715 | #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
|
|---|
| 716 |
|
|---|
| 717 | #ifdef PNG_NO_READ_TEXT
|
|---|
| 718 | # define PNG_NO_READ_iTXt
|
|---|
| 719 | # define PNG_NO_READ_tEXt
|
|---|
| 720 | # define PNG_NO_READ_zTXt
|
|---|
| 721 | #endif
|
|---|
| 722 | #ifndef PNG_NO_READ_bKGD
|
|---|
| 723 | # define PNG_READ_bKGD_SUPPORTED
|
|---|
| 724 | # define PNG_bKGD_SUPPORTED
|
|---|
| 725 | #endif
|
|---|
| 726 | #ifndef PNG_NO_READ_cHRM
|
|---|
| 727 | # define PNG_READ_cHRM_SUPPORTED
|
|---|
| 728 | # define PNG_cHRM_SUPPORTED
|
|---|
| 729 | #endif
|
|---|
| 730 | #ifndef PNG_NO_READ_gAMA
|
|---|
| 731 | # define PNG_READ_gAMA_SUPPORTED
|
|---|
| 732 | # define PNG_gAMA_SUPPORTED
|
|---|
| 733 | #endif
|
|---|
| 734 | #ifndef PNG_NO_READ_hIST
|
|---|
| 735 | # define PNG_READ_hIST_SUPPORTED
|
|---|
| 736 | # define PNG_hIST_SUPPORTED
|
|---|
| 737 | #endif
|
|---|
| 738 | #ifndef PNG_NO_READ_iCCP
|
|---|
| 739 | # define PNG_READ_iCCP_SUPPORTED
|
|---|
| 740 | # define PNG_iCCP_SUPPORTED
|
|---|
| 741 | #endif
|
|---|
| 742 | #ifndef PNG_NO_READ_iTXt
|
|---|
| 743 | # ifndef PNG_READ_iTXt_SUPPORTED
|
|---|
| 744 | # define PNG_READ_iTXt_SUPPORTED
|
|---|
| 745 | # endif
|
|---|
| 746 | # ifndef PNG_iTXt_SUPPORTED
|
|---|
| 747 | # define PNG_iTXt_SUPPORTED
|
|---|
| 748 | # endif
|
|---|
| 749 | #endif
|
|---|
| 750 | #ifndef PNG_NO_READ_oFFs
|
|---|
| 751 | # define PNG_READ_oFFs_SUPPORTED
|
|---|
| 752 | # define PNG_oFFs_SUPPORTED
|
|---|
| 753 | #endif
|
|---|
| 754 | #ifndef PNG_NO_READ_pCAL
|
|---|
| 755 | # define PNG_READ_pCAL_SUPPORTED
|
|---|
| 756 | # define PNG_pCAL_SUPPORTED
|
|---|
| 757 | #endif
|
|---|
| 758 | #ifndef PNG_NO_READ_sCAL
|
|---|
| 759 | # define PNG_READ_sCAL_SUPPORTED
|
|---|
| 760 | # define PNG_sCAL_SUPPORTED
|
|---|
| 761 | #endif
|
|---|
| 762 | #ifndef PNG_NO_READ_pHYs
|
|---|
| 763 | # define PNG_READ_pHYs_SUPPORTED
|
|---|
| 764 | # define PNG_pHYs_SUPPORTED
|
|---|
| 765 | #endif
|
|---|
| 766 | #ifndef PNG_NO_READ_sBIT
|
|---|
| 767 | # define PNG_READ_sBIT_SUPPORTED
|
|---|
| 768 | # define PNG_sBIT_SUPPORTED
|
|---|
| 769 | #endif
|
|---|
| 770 | #ifndef PNG_NO_READ_sPLT
|
|---|
| 771 | # define PNG_READ_sPLT_SUPPORTED
|
|---|
| 772 | # define PNG_sPLT_SUPPORTED
|
|---|
| 773 | #endif
|
|---|
| 774 | #ifndef PNG_NO_READ_sRGB
|
|---|
| 775 | # define PNG_READ_sRGB_SUPPORTED
|
|---|
| 776 | # define PNG_sRGB_SUPPORTED
|
|---|
| 777 | #endif
|
|---|
| 778 | #ifndef PNG_NO_READ_tEXt
|
|---|
| 779 | # define PNG_READ_tEXt_SUPPORTED
|
|---|
| 780 | # define PNG_tEXt_SUPPORTED
|
|---|
| 781 | #endif
|
|---|
| 782 | #ifndef PNG_NO_READ_tIME
|
|---|
| 783 | # define PNG_READ_tIME_SUPPORTED
|
|---|
| 784 | # define PNG_tIME_SUPPORTED
|
|---|
| 785 | #endif
|
|---|
| 786 | #ifndef PNG_NO_READ_tRNS
|
|---|
| 787 | # define PNG_READ_tRNS_SUPPORTED
|
|---|
| 788 | # define PNG_tRNS_SUPPORTED
|
|---|
| 789 | #endif
|
|---|
| 790 | #ifndef PNG_NO_READ_zTXt
|
|---|
| 791 | # define PNG_READ_zTXt_SUPPORTED
|
|---|
| 792 | # define PNG_zTXt_SUPPORTED
|
|---|
| 793 | #endif
|
|---|
| 794 | #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
|
|---|
| 795 | # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
|
|---|
| 796 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
|
|---|
| 797 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED
|
|---|
| 798 | # endif
|
|---|
| 799 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN
|
|---|
| 800 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
|---|
| 801 | # endif
|
|---|
| 802 | #endif
|
|---|
| 803 | #if !defined(PNG_NO_READ_USER_CHUNKS) && \
|
|---|
| 804 | defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
|
|---|
| 805 | # define PNG_READ_USER_CHUNKS_SUPPORTED
|
|---|
| 806 | # define PNG_USER_CHUNKS_SUPPORTED
|
|---|
| 807 | # ifdef PNG_NO_READ_UNKNOWN_CHUNKS
|
|---|
| 808 | # undef PNG_NO_READ_UNKNOWN_CHUNKS
|
|---|
| 809 | # endif
|
|---|
| 810 | # ifdef PNG_NO_HANDLE_AS_UNKNOWN
|
|---|
| 811 | # undef PNG_NO_HANDLE_AS_UNKNOWN
|
|---|
| 812 | # endif
|
|---|
| 813 | #endif
|
|---|
| 814 | #ifndef PNG_NO_READ_OPT_PLTE
|
|---|
| 815 | # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
|
|---|
| 816 | #endif /* optional PLTE chunk in RGB and RGBA images */
|
|---|
| 817 | #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
|
|---|
| 818 | defined(PNG_READ_zTXt_SUPPORTED)
|
|---|
| 819 | # define PNG_READ_TEXT_SUPPORTED
|
|---|
| 820 | # define PNG_TEXT_SUPPORTED
|
|---|
| 821 | #endif
|
|---|
| 822 |
|
|---|
| 823 | #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
|
|---|
| 824 |
|
|---|
| 825 | #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
|
|---|
| 826 |
|
|---|
| 827 | #ifdef PNG_NO_WRITE_TEXT
|
|---|
| 828 | # define PNG_NO_WRITE_iTXt
|
|---|
| 829 | # define PNG_NO_WRITE_tEXt
|
|---|
| 830 | # define PNG_NO_WRITE_zTXt
|
|---|
| 831 | #endif
|
|---|
| 832 | #ifndef PNG_NO_WRITE_bKGD
|
|---|
| 833 | # define PNG_WRITE_bKGD_SUPPORTED
|
|---|
| 834 | # ifndef PNG_bKGD_SUPPORTED
|
|---|
| 835 | # define PNG_bKGD_SUPPORTED
|
|---|
| 836 | # endif
|
|---|
| 837 | #endif
|
|---|
| 838 | #ifndef PNG_NO_WRITE_cHRM
|
|---|
| 839 | # define PNG_WRITE_cHRM_SUPPORTED
|
|---|
| 840 | # ifndef PNG_cHRM_SUPPORTED
|
|---|
| 841 | # define PNG_cHRM_SUPPORTED
|
|---|
| 842 | # endif
|
|---|
| 843 | #endif
|
|---|
| 844 | #ifndef PNG_NO_WRITE_gAMA
|
|---|
| 845 | # define PNG_WRITE_gAMA_SUPPORTED
|
|---|
| 846 | # ifndef PNG_gAMA_SUPPORTED
|
|---|
| 847 | # define PNG_gAMA_SUPPORTED
|
|---|
| 848 | # endif
|
|---|
| 849 | #endif
|
|---|
| 850 | #ifndef PNG_NO_WRITE_hIST
|
|---|
| 851 | # define PNG_WRITE_hIST_SUPPORTED
|
|---|
| 852 | # ifndef PNG_hIST_SUPPORTED
|
|---|
| 853 | # define PNG_hIST_SUPPORTED
|
|---|
| 854 | # endif
|
|---|
| 855 | #endif
|
|---|
| 856 | #ifndef PNG_NO_WRITE_iCCP
|
|---|
| 857 | # define PNG_WRITE_iCCP_SUPPORTED
|
|---|
| 858 | # ifndef PNG_iCCP_SUPPORTED
|
|---|
| 859 | # define PNG_iCCP_SUPPORTED
|
|---|
| 860 | # endif
|
|---|
| 861 | #endif
|
|---|
| 862 | #ifndef PNG_NO_WRITE_iTXt
|
|---|
| 863 | # ifndef PNG_WRITE_iTXt_SUPPORTED
|
|---|
| 864 | # define PNG_WRITE_iTXt_SUPPORTED
|
|---|
| 865 | # endif
|
|---|
| 866 | # ifndef PNG_iTXt_SUPPORTED
|
|---|
| 867 | # define PNG_iTXt_SUPPORTED
|
|---|
| 868 | # endif
|
|---|
| 869 | #endif
|
|---|
| 870 | #ifndef PNG_NO_WRITE_oFFs
|
|---|
| 871 | # define PNG_WRITE_oFFs_SUPPORTED
|
|---|
| 872 | # ifndef PNG_oFFs_SUPPORTED
|
|---|
| 873 | # define PNG_oFFs_SUPPORTED
|
|---|
| 874 | # endif
|
|---|
| 875 | #endif
|
|---|
| 876 | #ifndef PNG_NO_WRITE_pCAL
|
|---|
| 877 | # define PNG_WRITE_pCAL_SUPPORTED
|
|---|
| 878 | # ifndef PNG_pCAL_SUPPORTED
|
|---|
| 879 | # define PNG_pCAL_SUPPORTED
|
|---|
| 880 | # endif
|
|---|
| 881 | #endif
|
|---|
| 882 | #ifndef PNG_NO_WRITE_sCAL
|
|---|
| 883 | # define PNG_WRITE_sCAL_SUPPORTED
|
|---|
| 884 | # ifndef PNG_sCAL_SUPPORTED
|
|---|
| 885 | # define PNG_sCAL_SUPPORTED
|
|---|
| 886 | # endif
|
|---|
| 887 | #endif
|
|---|
| 888 | #ifndef PNG_NO_WRITE_pHYs
|
|---|
| 889 | # define PNG_WRITE_pHYs_SUPPORTED
|
|---|
| 890 | # ifndef PNG_pHYs_SUPPORTED
|
|---|
| 891 | # define PNG_pHYs_SUPPORTED
|
|---|
| 892 | # endif
|
|---|
| 893 | #endif
|
|---|
| 894 | #ifndef PNG_NO_WRITE_sBIT
|
|---|
| 895 | # define PNG_WRITE_sBIT_SUPPORTED
|
|---|
| 896 | # ifndef PNG_sBIT_SUPPORTED
|
|---|
| 897 | # define PNG_sBIT_SUPPORTED
|
|---|
| 898 | # endif
|
|---|
| 899 | #endif
|
|---|
| 900 | #ifndef PNG_NO_WRITE_sPLT
|
|---|
| 901 | # define PNG_WRITE_sPLT_SUPPORTED
|
|---|
| 902 | # ifndef PNG_sPLT_SUPPORTED
|
|---|
| 903 | # define PNG_sPLT_SUPPORTED
|
|---|
| 904 | # endif
|
|---|
| 905 | #endif
|
|---|
| 906 | #ifndef PNG_NO_WRITE_sRGB
|
|---|
| 907 | # define PNG_WRITE_sRGB_SUPPORTED
|
|---|
| 908 | # ifndef PNG_sRGB_SUPPORTED
|
|---|
| 909 | # define PNG_sRGB_SUPPORTED
|
|---|
| 910 | # endif
|
|---|
| 911 | #endif
|
|---|
| 912 | #ifndef PNG_NO_WRITE_tEXt
|
|---|
| 913 | # define PNG_WRITE_tEXt_SUPPORTED
|
|---|
| 914 | # ifndef PNG_tEXt_SUPPORTED
|
|---|
| 915 | # define PNG_tEXt_SUPPORTED
|
|---|
| 916 | # endif
|
|---|
| 917 | #endif
|
|---|
| 918 | #ifndef PNG_NO_WRITE_tIME
|
|---|
| 919 | # define PNG_WRITE_tIME_SUPPORTED
|
|---|
| 920 | # ifndef PNG_tIME_SUPPORTED
|
|---|
| 921 | # define PNG_tIME_SUPPORTED
|
|---|
| 922 | # endif
|
|---|
| 923 | #endif
|
|---|
| 924 | #ifndef PNG_NO_WRITE_tRNS
|
|---|
| 925 | # define PNG_WRITE_tRNS_SUPPORTED
|
|---|
| 926 | # ifndef PNG_tRNS_SUPPORTED
|
|---|
| 927 | # define PNG_tRNS_SUPPORTED
|
|---|
| 928 | # endif
|
|---|
| 929 | #endif
|
|---|
| 930 | #ifndef PNG_NO_WRITE_zTXt
|
|---|
| 931 | # define PNG_WRITE_zTXt_SUPPORTED
|
|---|
| 932 | # ifndef PNG_zTXt_SUPPORTED
|
|---|
| 933 | # define PNG_zTXt_SUPPORTED
|
|---|
| 934 | # endif
|
|---|
| 935 | #endif
|
|---|
| 936 | #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
|
|---|
| 937 | # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
|
|---|
| 938 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
|
|---|
| 939 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED
|
|---|
| 940 | # endif
|
|---|
| 941 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN
|
|---|
| 942 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
|---|
| 943 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
|---|
| 944 | # endif
|
|---|
| 945 | # endif
|
|---|
| 946 | #endif
|
|---|
| 947 | #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
|
|---|
| 948 | defined(PNG_WRITE_zTXt_SUPPORTED)
|
|---|
| 949 | # define PNG_WRITE_TEXT_SUPPORTED
|
|---|
| 950 | # ifndef PNG_TEXT_SUPPORTED
|
|---|
| 951 | # define PNG_TEXT_SUPPORTED
|
|---|
| 952 | # endif
|
|---|
| 953 | #endif
|
|---|
| 954 |
|
|---|
| 955 | #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
|
|---|
| 956 |
|
|---|
| 957 | /* Turn this off to disable png_read_png() and
|
|---|
| 958 | * png_write_png() and leave the row_pointers member
|
|---|
| 959 | * out of the info structure.
|
|---|
| 960 | */
|
|---|
| 961 | #ifndef PNG_NO_INFO_IMAGE
|
|---|
| 962 | # define PNG_INFO_IMAGE_SUPPORTED
|
|---|
| 963 | #endif
|
|---|
| 964 |
|
|---|
| 965 | /* need the time information for reading tIME chunks */
|
|---|
| 966 | #if defined(PNG_tIME_SUPPORTED)
|
|---|
| 967 | # if !defined(_WIN32_WCE)
|
|---|
| 968 | /* "time.h" functions are not supported on WindowsCE */
|
|---|
| 969 | # include <time.h>
|
|---|
| 970 | # endif
|
|---|
| 971 | #endif
|
|---|
| 972 |
|
|---|
| 973 | /* Some typedefs to get us started. These should be safe on most of the
|
|---|
| 974 | * common platforms. The typedefs should be at least as large as the
|
|---|
| 975 | * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
|
|---|
| 976 | * don't have to be exactly that size. Some compilers dislike passing
|
|---|
| 977 | * unsigned shorts as function parameters, so you may be better off using
|
|---|
| 978 | * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may
|
|---|
| 979 | * want to have unsigned int for png_uint_32 instead of unsigned long.
|
|---|
| 980 | */
|
|---|
| 981 |
|
|---|
| 982 | typedef unsigned long png_uint_32;
|
|---|
| 983 | typedef long png_int_32;
|
|---|
| 984 | typedef unsigned short png_uint_16;
|
|---|
| 985 | typedef short png_int_16;
|
|---|
| 986 | typedef unsigned char png_byte;
|
|---|
| 987 |
|
|---|
| 988 | /* This is usually size_t. It is typedef'ed just in case you need it to
|
|---|
| 989 | change (I'm not sure if you will or not, so I thought I'd be safe) */
|
|---|
| 990 | typedef size_t png_size_t;
|
|---|
| 991 |
|
|---|
| 992 | /* The following is needed for medium model support. It cannot be in the
|
|---|
| 993 | * PNG_INTERNAL section. Needs modification for other compilers besides
|
|---|
| 994 | * MSC. Model independent support declares all arrays and pointers to be
|
|---|
| 995 | * large using the far keyword. The zlib version used must also support
|
|---|
| 996 | * model independent data. As of version zlib 1.0.4, the necessary changes
|
|---|
| 997 | * have been made in zlib. The USE_FAR_KEYWORD define triggers other
|
|---|
| 998 | * changes that are needed. (Tim Wegner)
|
|---|
| 999 | */
|
|---|
| 1000 |
|
|---|
| 1001 | /* Separate compiler dependencies (problem here is that zlib.h always
|
|---|
| 1002 | defines FAR. (SJT) */
|
|---|
| 1003 | #ifdef __BORLANDC__
|
|---|
| 1004 | # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
|
|---|
| 1005 | # define LDATA 1
|
|---|
| 1006 | # else
|
|---|
| 1007 | # define LDATA 0
|
|---|
| 1008 | # endif
|
|---|
| 1009 | /* GRR: why is Cygwin in here? Cygwin is not Borland C... */
|
|---|
| 1010 | # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
|
|---|
| 1011 | # define PNG_MAX_MALLOC_64K
|
|---|
| 1012 | # if (LDATA != 1)
|
|---|
| 1013 | # ifndef FAR
|
|---|
| 1014 | # define FAR __far
|
|---|
| 1015 | # endif
|
|---|
| 1016 | # define USE_FAR_KEYWORD
|
|---|
| 1017 | # endif /* LDATA != 1 */
|
|---|
| 1018 | /* Possibly useful for moving data out of default segment.
|
|---|
| 1019 | * Uncomment it if you want. Could also define FARDATA as
|
|---|
| 1020 | * const if your compiler supports it. (SJT)
|
|---|
| 1021 | # define FARDATA FAR
|
|---|
| 1022 | */
|
|---|
| 1023 | # endif /* __WIN32__, __FLAT__, __CYGWIN__ */
|
|---|
| 1024 | #endif /* __BORLANDC__ */
|
|---|
| 1025 |
|
|---|
| 1026 |
|
|---|
| 1027 | /* Suggest testing for specific compiler first before testing for
|
|---|
| 1028 | * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM,
|
|---|
| 1029 | * making reliance oncertain keywords suspect. (SJT)
|
|---|
| 1030 | */
|
|---|
| 1031 |
|
|---|
| 1032 | /* MSC Medium model */
|
|---|
| 1033 | #if defined(FAR)
|
|---|
| 1034 | # if defined(M_I86MM)
|
|---|
| 1035 | # define USE_FAR_KEYWORD
|
|---|
| 1036 | # define FARDATA FAR
|
|---|
| 1037 | # include <dos.h>
|
|---|
| 1038 | # endif
|
|---|
| 1039 | #endif
|
|---|
| 1040 |
|
|---|
| 1041 | /* SJT: default case */
|
|---|
| 1042 | #ifndef FAR
|
|---|
| 1043 | # define FAR
|
|---|
| 1044 | #endif
|
|---|
| 1045 |
|
|---|
| 1046 | /* At this point FAR is always defined */
|
|---|
| 1047 | #ifndef FARDATA
|
|---|
| 1048 | # define FARDATA
|
|---|
| 1049 | #endif
|
|---|
| 1050 |
|
|---|
| 1051 | /* Typedef for floating-point numbers that are converted
|
|---|
| 1052 | to fixed-point with a multiple of 100,000, e.g., int_gamma */
|
|---|
| 1053 | typedef png_int_32 png_fixed_point;
|
|---|
| 1054 |
|
|---|
| 1055 | /* Add typedefs for pointers */
|
|---|
| 1056 | typedef void FAR * png_voidp;
|
|---|
| 1057 | typedef png_byte FAR * png_bytep;
|
|---|
| 1058 | typedef png_uint_32 FAR * png_uint_32p;
|
|---|
| 1059 | typedef png_int_32 FAR * png_int_32p;
|
|---|
| 1060 | typedef png_uint_16 FAR * png_uint_16p;
|
|---|
| 1061 | typedef png_int_16 FAR * png_int_16p;
|
|---|
| 1062 | typedef PNG_CONST char FAR * png_const_charp;
|
|---|
| 1063 | typedef char FAR * png_charp;
|
|---|
| 1064 | typedef png_fixed_point FAR * png_fixed_point_p;
|
|---|
| 1065 |
|
|---|
| 1066 | #ifndef PNG_NO_STDIO
|
|---|
| 1067 | #if defined(_WIN32_WCE)
|
|---|
| 1068 | typedef HANDLE png_FILE_p;
|
|---|
| 1069 | #else
|
|---|
| 1070 | typedef FILE * png_FILE_p;
|
|---|
| 1071 | #endif
|
|---|
| 1072 | #endif
|
|---|
| 1073 |
|
|---|
| 1074 | #ifdef PNG_FLOATING_POINT_SUPPORTED
|
|---|
| 1075 | typedef double FAR * png_doublep;
|
|---|
| 1076 | #endif
|
|---|
| 1077 |
|
|---|
| 1078 | /* Pointers to pointers; i.e. arrays */
|
|---|
| 1079 | typedef png_byte FAR * FAR * png_bytepp;
|
|---|
| 1080 | typedef png_uint_32 FAR * FAR * png_uint_32pp;
|
|---|
| 1081 | typedef png_int_32 FAR * FAR * png_int_32pp;
|
|---|
| 1082 | typedef png_uint_16 FAR * FAR * png_uint_16pp;
|
|---|
| 1083 | typedef png_int_16 FAR * FAR * png_int_16pp;
|
|---|
| 1084 | typedef PNG_CONST char FAR * FAR * png_const_charpp;
|
|---|
| 1085 | typedef char FAR * FAR * png_charpp;
|
|---|
| 1086 | typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
|
|---|
| 1087 | #ifdef PNG_FLOATING_POINT_SUPPORTED
|
|---|
| 1088 | typedef double FAR * FAR * png_doublepp;
|
|---|
| 1089 | #endif
|
|---|
| 1090 |
|
|---|
| 1091 | /* Pointers to pointers to pointers; i.e., pointer to array */
|
|---|
| 1092 | typedef char FAR * FAR * FAR * png_charppp;
|
|---|
| 1093 |
|
|---|
| 1094 | /* libpng typedefs for types in zlib. If zlib changes
|
|---|
| 1095 | * or another compression library is used, then change these.
|
|---|
| 1096 | * Eliminates need to change all the source files.
|
|---|
| 1097 | */
|
|---|
| 1098 | typedef charf * png_zcharp;
|
|---|
| 1099 | typedef charf * FAR * png_zcharpp;
|
|---|
| 1100 | typedef z_stream FAR * png_zstreamp;
|
|---|
| 1101 |
|
|---|
| 1102 | /*
|
|---|
| 1103 | * Define PNG_BUILD_DLL if the module being built is a Windows
|
|---|
| 1104 | * LIBPNG DLL.
|
|---|
| 1105 | *
|
|---|
| 1106 | * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
|
|---|
| 1107 | * It is equivalent to Microsoft predefined macro _DLL that is
|
|---|
| 1108 | * automatically defined when you compile using the share
|
|---|
| 1109 | * version of the CRT (C Run-Time library)
|
|---|
| 1110 | *
|
|---|
| 1111 | * The cygwin mods make this behavior a little different:
|
|---|
| 1112 | * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
|
|---|
| 1113 | * Define PNG_STATIC if you are building a static library for use with cygwin,
|
|---|
| 1114 | * -or- if you are building an application that you want to link to the
|
|---|
| 1115 | * static library.
|
|---|
| 1116 | * PNG_USE_DLL is defined by default (no user action needed) unless one of
|
|---|
| 1117 | * the other flags is defined.
|
|---|
| 1118 | */
|
|---|
| 1119 |
|
|---|
| 1120 | #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
|
|---|
| 1121 | # define PNG_DLL
|
|---|
| 1122 | #endif
|
|---|
| 1123 | /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
|
|---|
| 1124 | * When building a static lib, default to no GLOBAL ARRAYS, but allow
|
|---|
| 1125 | * command-line override
|
|---|
| 1126 | */
|
|---|
| 1127 | #if defined(__CYGWIN__)
|
|---|
| 1128 | # if !defined(PNG_STATIC)
|
|---|
| 1129 | # if defined(PNG_USE_GLOBAL_ARRAYS)
|
|---|
| 1130 | # undef PNG_USE_GLOBAL_ARRAYS
|
|---|
| 1131 | # endif
|
|---|
| 1132 | # if !defined(PNG_USE_LOCAL_ARRAYS)
|
|---|
| 1133 | # define PNG_USE_LOCAL_ARRAYS
|
|---|
| 1134 | # endif
|
|---|
| 1135 | # else
|
|---|
| 1136 | # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
|
|---|
| 1137 | # if defined(PNG_USE_GLOBAL_ARRAYS)
|
|---|
| 1138 | # undef PNG_USE_GLOBAL_ARRAYS
|
|---|
| 1139 | # endif
|
|---|
| 1140 | # endif
|
|---|
| 1141 | # endif
|
|---|
| 1142 | # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
|
|---|
| 1143 | # define PNG_USE_LOCAL_ARRAYS
|
|---|
| 1144 | # endif
|
|---|
| 1145 | #endif
|
|---|
| 1146 |
|
|---|
| 1147 | /* Do not use global arrays (helps with building DLL's)
|
|---|
| 1148 | * They are no longer used in libpng itself, since version 1.0.5c,
|
|---|
| 1149 | * but might be required for some pre-1.0.5c applications.
|
|---|
| 1150 | */
|
|---|
| 1151 | #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
|
|---|
| 1152 | # if defined(PNG_NO_GLOBAL_ARRAYS) || (defined(__GNUC__) && defined(PNG_DLL))
|
|---|
| 1153 | # define PNG_USE_LOCAL_ARRAYS
|
|---|
| 1154 | # else
|
|---|
| 1155 | # define PNG_USE_GLOBAL_ARRAYS
|
|---|
| 1156 | # endif
|
|---|
| 1157 | #endif
|
|---|
| 1158 |
|
|---|
| 1159 | #if defined(__CYGWIN__)
|
|---|
| 1160 | # undef PNGAPI
|
|---|
| 1161 | # define PNGAPI __cdecl
|
|---|
| 1162 | # undef PNG_IMPEXP
|
|---|
| 1163 | # define PNG_IMPEXP
|
|---|
| 1164 | #endif
|
|---|
| 1165 |
|
|---|
| 1166 | /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
|
|---|
| 1167 | * you may get warnings regarding the linkage of png_zalloc and png_zfree.
|
|---|
| 1168 | * Don't ignore those warnings; you must also reset the default calling
|
|---|
| 1169 | * convention in your compiler to match your PNGAPI, and you must build
|
|---|
| 1170 | * zlib and your applications the same way you build libpng.
|
|---|
| 1171 | */
|
|---|
| 1172 |
|
|---|
| 1173 | #ifndef PNGAPI
|
|---|
| 1174 |
|
|---|
| 1175 | #if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
|
|---|
| 1176 | # ifndef PNG_NO_MODULEDEF
|
|---|
| 1177 | # define PNG_NO_MODULEDEF
|
|---|
| 1178 | # endif
|
|---|
| 1179 | #endif
|
|---|
| 1180 |
|
|---|
| 1181 | #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
|
|---|
| 1182 | # define PNG_IMPEXP
|
|---|
| 1183 | #endif
|
|---|
| 1184 |
|
|---|
| 1185 | #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
|
|---|
| 1186 | (( defined(_Windows) || defined(_WINDOWS) || \
|
|---|
| 1187 | defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
|
|---|
| 1188 |
|
|---|
| 1189 | # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
|
|---|
| 1190 | # define PNGAPI __cdecl
|
|---|
| 1191 | # else
|
|---|
| 1192 | # define PNGAPI _cdecl
|
|---|
| 1193 | # endif
|
|---|
| 1194 |
|
|---|
| 1195 | # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
|
|---|
| 1196 | 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
|
|---|
| 1197 | # define PNG_IMPEXP
|
|---|
| 1198 | # endif
|
|---|
| 1199 |
|
|---|
| 1200 | # if !defined(PNG_IMPEXP)
|
|---|
| 1201 |
|
|---|
| 1202 | # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol
|
|---|
| 1203 | # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol
|
|---|
| 1204 |
|
|---|
| 1205 | /* Borland/Microsoft */
|
|---|
| 1206 | # if defined(_MSC_VER) || defined(__BORLANDC__)
|
|---|
| 1207 | # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
|
|---|
| 1208 | # define PNG_EXPORT PNG_EXPORT_TYPE1
|
|---|
| 1209 | # else
|
|---|
| 1210 | # define PNG_EXPORT PNG_EXPORT_TYPE2
|
|---|
| 1211 | # if defined(PNG_BUILD_DLL)
|
|---|
| 1212 | # define PNG_IMPEXP __export
|
|---|
| 1213 | # else
|
|---|
| 1214 | # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
|
|---|
| 1215 | VC++ */
|
|---|
| 1216 | # endif /* Exists in Borland C++ for
|
|---|
| 1217 | C++ classes (== huge) */
|
|---|
| 1218 | # endif
|
|---|
| 1219 | # endif
|
|---|
| 1220 |
|
|---|
| 1221 | # if !defined(PNG_IMPEXP)
|
|---|
| 1222 | # if defined(PNG_BUILD_DLL)
|
|---|
| 1223 | # define PNG_IMPEXP __declspec(dllexport)
|
|---|
| 1224 | # else
|
|---|
| 1225 | # define PNG_IMPEXP __declspec(dllimport)
|
|---|
| 1226 | # endif
|
|---|
| 1227 | # endif
|
|---|
| 1228 | # endif /* PNG_IMPEXP */
|
|---|
| 1229 | #else /* !(DLL || non-cygwin WINDOWS) */
|
|---|
| 1230 | # if (defined(__IBMC__) || defined(IBMCPP__)) && defined(__OS2__)
|
|---|
| 1231 | # define PNGAPI _System
|
|---|
| 1232 | # define PNG_IMPEXP
|
|---|
| 1233 | # else
|
|---|
| 1234 | # if 0 /* ... other platforms, with other meanings */
|
|---|
| 1235 | # else
|
|---|
| 1236 | # define PNGAPI
|
|---|
| 1237 | # define PNG_IMPEXP
|
|---|
| 1238 | # endif
|
|---|
| 1239 | # endif
|
|---|
| 1240 | #endif
|
|---|
| 1241 | #endif
|
|---|
| 1242 |
|
|---|
| 1243 | #ifndef PNGAPI
|
|---|
| 1244 | # define PNGAPI
|
|---|
| 1245 | #endif
|
|---|
| 1246 | #ifndef PNG_IMPEXP
|
|---|
| 1247 | # define PNG_IMPEXP
|
|---|
| 1248 | #endif
|
|---|
| 1249 |
|
|---|
| 1250 | #ifndef PNG_EXPORT
|
|---|
| 1251 | # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
|
|---|
| 1252 | #endif
|
|---|
| 1253 |
|
|---|
| 1254 | #ifdef PNG_USE_GLOBAL_ARRAYS
|
|---|
| 1255 | # ifndef PNG_EXPORT_VAR
|
|---|
| 1256 | # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
|
|---|
| 1257 | # endif
|
|---|
| 1258 | #endif
|
|---|
| 1259 |
|
|---|
| 1260 | /* User may want to use these so they are not in PNG_INTERNAL. Any library
|
|---|
| 1261 | * functions that are passed far data must be model independent.
|
|---|
| 1262 | */
|
|---|
| 1263 |
|
|---|
| 1264 | #ifndef PNG_ABORT
|
|---|
| 1265 | # define PNG_ABORT() abort()
|
|---|
| 1266 | #endif
|
|---|
| 1267 |
|
|---|
| 1268 | #ifdef PNG_SETJMP_SUPPORTED
|
|---|
| 1269 | # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
|
|---|
| 1270 | #else
|
|---|
| 1271 | # define png_jmpbuf(png_ptr) \
|
|---|
| 1272 | (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
|
|---|
| 1273 | #endif
|
|---|
| 1274 |
|
|---|
| 1275 | #if defined(USE_FAR_KEYWORD) /* memory model independent fns */
|
|---|
| 1276 | /* use this to make far-to-near assignments */
|
|---|
| 1277 | # define CHECK 1
|
|---|
| 1278 | # define NOCHECK 0
|
|---|
| 1279 | # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
|
|---|
| 1280 | # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
|
|---|
| 1281 | # define png_strcpy _fstrcpy
|
|---|
| 1282 | # define png_strlen _fstrlen
|
|---|
| 1283 | # define png_memcmp _fmemcmp /* SJT: added */
|
|---|
| 1284 | # define png_memcpy _fmemcpy
|
|---|
| 1285 | # define png_memset _fmemset
|
|---|
| 1286 | #else /* use the usual functions */
|
|---|
| 1287 | # define CVT_PTR(ptr) (ptr)
|
|---|
| 1288 | # define CVT_PTR_NOCHECK(ptr) (ptr)
|
|---|
| 1289 | # define png_strcpy strcpy
|
|---|
| 1290 | # define png_strlen strlen
|
|---|
| 1291 | # define png_memcmp memcmp /* SJT: added */
|
|---|
| 1292 | # define png_memcpy memcpy
|
|---|
| 1293 | # define png_memset memset
|
|---|
| 1294 | #endif
|
|---|
| 1295 | /* End of memory model independent support */
|
|---|
| 1296 |
|
|---|
| 1297 | /* Just a little check that someone hasn't tried to define something
|
|---|
| 1298 | * contradictory.
|
|---|
| 1299 | */
|
|---|
| 1300 | #if (PNG_ZBUF_SIZE > 65536) && defined(PNG_MAX_MALLOC_64K)
|
|---|
| 1301 | # undef PNG_ZBUF_SIZE
|
|---|
| 1302 | # define PNG_ZBUF_SIZE 65536
|
|---|
| 1303 | #endif
|
|---|
| 1304 |
|
|---|
| 1305 | #ifdef PNG_READ_SUPPORTED
|
|---|
| 1306 | /* Prior to libpng-1.0.9, this block was in pngasmrd.h */
|
|---|
| 1307 | #if defined(PNG_INTERNAL)
|
|---|
| 1308 |
|
|---|
| 1309 | /* These are the default thresholds before the MMX code kicks in; if either
|
|---|
| 1310 | * rowbytes or bitdepth is below the threshold, plain C code is used. These
|
|---|
| 1311 | * can be overridden at runtime via the png_set_mmx_thresholds() call in
|
|---|
| 1312 | * libpng 1.2.0 and later. The values below were chosen by Intel.
|
|---|
| 1313 | */
|
|---|
| 1314 |
|
|---|
| 1315 | #ifndef PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT
|
|---|
| 1316 | # define PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT 128 /* >= */
|
|---|
| 1317 | #endif
|
|---|
| 1318 | #ifndef PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT
|
|---|
| 1319 | # define PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT 9 /* >= */
|
|---|
| 1320 | #endif
|
|---|
| 1321 |
|
|---|
| 1322 | /* Set this in the makefile for VC++ on Pentium, not here. */
|
|---|
| 1323 | /* Platform must be Pentium. Makefile must assemble and load pngvcrd.c .
|
|---|
| 1324 | * MMX will be detected at run time and used if present.
|
|---|
| 1325 | */
|
|---|
| 1326 | #ifdef PNG_USE_PNGVCRD
|
|---|
| 1327 | # define PNG_HAVE_ASSEMBLER_COMBINE_ROW
|
|---|
| 1328 | # define PNG_HAVE_ASSEMBLER_READ_INTERLACE
|
|---|
| 1329 | # define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
|
|---|
| 1330 | #endif
|
|---|
| 1331 |
|
|---|
| 1332 | /* Set this in the makefile for gcc/as on Pentium, not here. */
|
|---|
| 1333 | /* Platform must be Pentium. Makefile must assemble and load pnggccrd.c .
|
|---|
| 1334 | * MMX will be detected at run time and used if present.
|
|---|
| 1335 | */
|
|---|
| 1336 | #ifdef PNG_USE_PNGGCCRD
|
|---|
| 1337 | # define PNG_HAVE_ASSEMBLER_COMBINE_ROW
|
|---|
| 1338 | # define PNG_HAVE_ASSEMBLER_READ_INTERLACE
|
|---|
| 1339 | # define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
|
|---|
| 1340 | #endif
|
|---|
| 1341 | /* - see pnggccrd.c for info about what is currently enabled */
|
|---|
| 1342 |
|
|---|
| 1343 | #endif /* PNG_INTERNAL */
|
|---|
| 1344 | #endif /* PNG_READ_SUPPORTED */
|
|---|
| 1345 |
|
|---|
| 1346 | #endif /* PNGCONF_H */
|
|---|
| 1347 |
|
|---|
