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| 1 /***************************************************************************/ | |
| 2 /* */ | |
| 3 /* fterrors.h */ | |
| 4 /* */ | |
| 5 /* FreeType error code handling (specification). */ | |
| 6 /* */ | |
| 7 /* Copyright 1996-2002, 2004, 2007, 2013 by */ | |
| 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
| 9 /* */ | |
| 10 /* This file is part of the FreeType project, and may only be used, */ | |
| 11 /* modified, and distributed under the terms of the FreeType project */ | |
| 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
| 13 /* this file you indicate that you have read the license and */ | |
| 14 /* understand and accept it fully. */ | |
| 15 /* */ | |
| 16 /***************************************************************************/ | |
| 17 | |
| 18 | |
| 19 /*************************************************************************/ | |
| 20 /* */ | |
| 21 /* This special header file is used to define the handling of FT2 */ | |
| 22 /* enumeration constants. It can also be used to generate error message */ | |
| 23 /* strings with a small macro trick explained below. */ | |
| 24 /* */ | |
| 25 /* I - Error Formats */ | |
| 26 /* ----------------- */ | |
| 27 /* */ | |
| 28 /* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */ | |
| 29 /* defined in ftoption.h in order to make the higher byte indicate */ | |
| 30 /* the module where the error has happened (this is not compatible */ | |
| 31 /* with standard builds of FreeType 2). See the file `ftmoderr.h' for */ | |
| 32 /* more details. */ | |
| 33 /* */ | |
| 34 /* */ | |
| 35 /* II - Error Message strings */ | |
| 36 /* -------------------------- */ | |
| 37 /* */ | |
| 38 /* The error definitions below are made through special macros that */ | |
| 39 /* allow client applications to build a table of error message strings */ | |
| 40 /* if they need it. The strings are not included in a normal build of */ | |
| 41 /* FreeType 2 to save space (most client applications do not use */ | |
| 42 /* them). */ | |
| 43 /* */ | |
| 44 /* To do so, you have to define the following macros before including */ | |
| 45 /* this file: */ | |
| 46 /* */ | |
| 47 /* FT_ERROR_START_LIST :: */ | |
| 48 /* This macro is called before anything else to define the start of */ | |
| 49 /* the error list. It is followed by several FT_ERROR_DEF calls */ | |
| 50 /* (see below). */ | |
| 51 /* */ | |
| 52 /* FT_ERROR_DEF( e, v, s ) :: */ | |
| 53 /* This macro is called to define one single error. */ | |
| 54 /* `e' is the error code identifier (e.g. FT_Err_Invalid_Argument). */ | |
| 55 /* `v' is the error numerical value. */ | |
| 56 /* `s' is the corresponding error string. */ | |
| 57 /* */ | |
| 58 /* FT_ERROR_END_LIST :: */ | |
| 59 /* This macro ends the list. */ | |
| 60 /* */ | |
| 61 /* Additionally, you have to undefine __FTERRORS_H__ before #including */ | |
| 62 /* this file. */ | |
| 63 /* */ | |
| 64 /* Here is a simple example: */ | |
| 65 /* */ | |
| 66 /* { */ | |
| 67 /* #undef __FTERRORS_H__ */ | |
| 68 /* #define FT_ERRORDEF( e, v, s ) { e, s }, */ | |
| 69 /* #define FT_ERROR_START_LIST { */ | |
| 70 /* #define FT_ERROR_END_LIST { 0, 0 } }; */ | |
| 71 /* */ | |
| 72 /* const struct */ | |
| 73 /* { */ | |
| 74 /* int err_code; */ | |
| 75 /* const char* err_msg; */ | |
| 76 /* } ft_errors[] = */ | |
| 77 /* */ | |
| 78 /* #include FT_ERRORS_H */ | |
| 79 /* } */ | |
| 80 /* */ | |
| 81 /*************************************************************************/ | |
| 82 | |
| 83 | |
| 84 #ifndef __FTERRORS_H__ | |
| 85 #define __FTERRORS_H__ | |
| 86 | |
| 87 | |
| 88 /* include module base error codes */ | |
| 89 #include FT_MODULE_ERRORS_H | |
| 90 | |
| 91 | |
| 92 /*******************************************************************/ | |
| 93 /*******************************************************************/ | |
| 94 /***** *****/ | |
| 95 /***** SETUP MACROS *****/ | |
| 96 /***** *****/ | |
| 97 /*******************************************************************/ | |
| 98 /*******************************************************************/ | |
| 99 | |
| 100 | |
| 101 #undef FT_NEED_EXTERN_C | |
| 102 | |
| 103 | |
| 104 /* FT_ERR_PREFIX is used as a prefix for error identifiers. */ | |
| 105 /* By default, we use `FT_Err_'. */ | |
| 106 /* */ | |
| 107 #ifndef FT_ERR_PREFIX | |
| 108 #define FT_ERR_PREFIX FT_Err_ | |
| 109 #endif | |
| 110 | |
| 111 | |
| 112 /* FT_ERR_BASE is used as the base for module-specific errors. */ | |
| 113 /* */ | |
| 114 #ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS | |
| 115 | |
| 116 #ifndef FT_ERR_BASE | |
| 117 #define FT_ERR_BASE FT_Mod_Err_Base | |
| 118 #endif | |
| 119 | |
| 120 #else | |
| 121 | |
| 122 #undef FT_ERR_BASE | |
| 123 #define FT_ERR_BASE 0 | |
| 124 | |
| 125 #endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */ | |
| 126 | |
| 127 | |
| 128 /* If FT_ERRORDEF is not defined, we need to define a simple */ | |
| 129 /* enumeration type. */ | |
| 130 /* */ | |
| 131 #ifndef FT_ERRORDEF | |
| 132 | |
| 133 #define FT_ERRORDEF( e, v, s ) e = v, | |
| 134 #define FT_ERROR_START_LIST enum { | |
| 135 #define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) }; | |
| 136 | |
| 137 #ifdef __cplusplus | |
| 138 #define FT_NEED_EXTERN_C | |
| 139 extern "C" { | |
| 140 #endif | |
| 141 | |
| 142 #endif /* !FT_ERRORDEF */ | |
| 143 | |
| 144 | |
| 145 /* this macro is used to define an error */ | |
| 146 #define FT_ERRORDEF_( e, v, s ) \ | |
| 147 FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s ) | |
| 148 | |
| 149 /* this is only used for <module>_Err_Ok, which must be 0! */ | |
| 150 #define FT_NOERRORDEF_( e, v, s ) \ | |
| 151 FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s ) | |
| 152 | |
| 153 | |
| 154 #ifdef FT_ERROR_START_LIST | |
| 155 FT_ERROR_START_LIST | |
| 156 #endif | |
| 157 | |
| 158 | |
| 159 /* now include the error codes */ | |
| 160 #include FT_ERROR_DEFINITIONS_H | |
| 161 | |
| 162 | |
| 163 #ifdef FT_ERROR_END_LIST | |
| 164 FT_ERROR_END_LIST | |
| 165 #endif | |
| 166 | |
| 167 | |
| 168 /*******************************************************************/ | |
| 169 /*******************************************************************/ | |
| 170 /***** *****/ | |
| 171 /***** SIMPLE CLEANUP *****/ | |
| 172 /***** *****/ | |
| 173 /*******************************************************************/ | |
| 174 /*******************************************************************/ | |
| 175 | |
| 176 #ifdef FT_NEED_EXTERN_C | |
| 177 } | |
| 178 #endif | |
| 179 | |
| 180 #undef FT_ERROR_START_LIST | |
| 181 #undef FT_ERROR_END_LIST | |
| 182 | |
| 183 #undef FT_ERRORDEF | |
| 184 #undef FT_ERRORDEF_ | |
| 185 #undef FT_NOERRORDEF_ | |
| 186 | |
| 187 #undef FT_NEED_EXTERN_C | |
| 188 #undef FT_ERR_BASE | |
| 189 | |
| 190 /* FT_ERR_PREFIX is needed internally */ | |
| 191 #ifndef FT2_BUILD_LIBRARY | |
| 192 #undef FT_ERR_PREFIX | |
| 193 #endif | |
| 194 | |
| 195 #endif /* __FTERRORS_H__ */ | |
| 196 | |
| 197 | |
| 198 /* END */ | |
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Chromium Code Reviews
Issue 1413673003:
Update bundled freetype to 2.6.1 (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master