projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| cabec872 RR |
1 | /***************************************************************************/ |
| 2 | /* */ | |
| 3 | /* ftinit.c */ | |
| 4 | /* */ | |
| 5 | /* FreeType initialization layer (body). */ | |
| 6 | /* */ | |
| 7 | /* Copyright 1996-2000 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 | /* The purpose of this file is to implement the following two */ | |
| 21 | /* functions: */ | |
| 22 | /* */ | |
| 23 | /* FT_Add_Default_Modules(): */ | |
| 24 | /* This function is used to add the set of default modules to a */ | |
| 25 | /* fresh new library object. The set is taken from the header file */ | |
| 26 | /* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */ | |
| 27 | /* Build System' for more information. */ | |
| 28 | /* */ | |
| 29 | /* FT_Init_FreeType(): */ | |
| 30 | /* This function creates a system object for the current platform, */ | |
| 31 | /* builds a library out of it, then calls FT_Default_Drivers(). */ | |
| 32 | /* */ | |
| 33 | /* Note that even if FT_Init_FreeType() uses the implementation of the */ | |
| 34 | /* system object defined at build time, client applications are still */ | |
| 35 | /* able to provide their own `ftsystem.c'. */ | |
| 36 | /* */ | |
| 37 | /*************************************************************************/ | |
| 38 | ||
| 39 | ||
| 40 | #include <freetype/config/ftconfig.h> | |
| 41 | #include <freetype/internal/ftobjs.h> | |
| 42 | #include <freetype/internal/ftdebug.h> | |
| 43 | #include <freetype/ftmodule.h> | |
| 44 | ||
| 45 | ||
| 46 | /*************************************************************************/ | |
| 47 | /* */ | |
| 48 | /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ | |
| 49 | /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ | |
| 50 | /* messages during execution. */ | |
| 51 | /* */ | |
| 52 | #undef FT_COMPONENT | |
| 53 | #define FT_COMPONENT trace_init | |
| 54 | ||
| 55 | #undef FT_USE_MODULE | |
| 56 | #define FT_USE_MODULE( x ) extern const FT_Module_Class* x; | |
| 57 | ||
| 58 | #ifdef macintosh | |
| 59 | FT_USE_MODULE(fond_driver_class) | |
| 60 | #endif | |
| 61 | #include <freetype/config/ftmodule.h> | |
| 62 | ||
| 63 | #undef FT_USE_MODULE | |
| 64 | #define FT_USE_MODULE( x ) (const FT_Module_Class*)&x, | |
| 65 | ||
| 66 | static | |
| 67 | const FT_Module_Class* ft_default_modules[] = | |
| 68 | { | |
| 69 | #ifdef macintosh | |
| 70 | FT_USE_MODULE(fond_driver_class) | |
| 71 | #endif | |
| 72 | #include <freetype/config/ftmodule.h> | |
| 73 | 0 | |
| 74 | }; | |
| 75 | ||
| 76 | ||
| 77 | /*************************************************************************/ | |
| 78 | /* */ | |
| 79 | /* <Function> */ | |
| 80 | /* FT_Add_Default_Modules */ | |
| 81 | /* */ | |
| 82 | /* <Description> */ | |
| 83 | /* Adds the set of default drivers to a given library object. */ | |
| 84 | /* This is only useful when you create a library object with */ | |
| 85 | /* FT_New_Library() (usually to plug a custom memory manager). */ | |
| 86 | /* */ | |
| 87 | /* <InOut> */ | |
| 88 | /* library :: A handle to a new library object. */ | |
| 89 | /* */ | |
| 90 | FT_EXPORT_FUNC( void ) FT_Add_Default_Modules( FT_Library library ) | |
| 91 | { | |
| 92 | FT_Error error; | |
| 93 | const FT_Module_Class** cur; | |
| 94 | ||
| 95 | ||
| 96 | /* test for valid `library' delayed to FT_Add_Module() */ | |
| 97 | ||
| 98 | cur = ft_default_modules; | |
| 99 | while ( *cur ) | |
| 100 | { | |
| 101 | error = FT_Add_Module( library, *cur ); | |
| 102 | /* notify errors, but don't stop */ | |
| 103 | if ( error ) | |
| 104 | { | |
| 105 | FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = %x\n", | |
| 106 | (*cur)->module_name, error )); | |
| 107 | } | |
| 108 | cur++; | |
| 109 | } | |
| 110 | } | |
| 111 | ||
| 112 | ||
| 113 | /*************************************************************************/ | |
| 114 | /* */ | |
| 115 | /* <Function> */ | |
| 116 | /* FT_Init_FreeType */ | |
| 117 | /* */ | |
| 118 | /* <Description> */ | |
| 119 | /* Initializes a new FreeType library object. The set of drivers */ | |
| 120 | /* that are registered by this function is determined at build time. */ | |
| 121 | /* */ | |
| 122 | /* <Output> */ | |
| 123 | /* library :: A handle to a new library object. */ | |
| 124 | /* */ | |
| 125 | /* <Return> */ | |
| 126 | /* FreeType error code. 0 means success. */ | |
| 127 | /* */ | |
| 128 | FT_EXPORT_FUNC( FT_Error ) FT_Init_FreeType( FT_Library* library ) | |
| 129 | { | |
| 130 | FT_Error error; | |
| 131 | FT_Memory memory; | |
| 132 | ||
| 133 | ||
| 134 | /* First of all, allocate a new system object -- this function is part */ | |
| 135 | /* of the system-specific component, i.e. `ftsystem.c'. */ | |
| 136 | ||
| 137 | memory = FT_New_Memory(); | |
| 138 | if ( !memory ) | |
| 139 | { | |
| 140 | FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" )); | |
| 141 | return FT_Err_Unimplemented_Feature; | |
| 142 | } | |
| 143 | ||
| 144 | /* build a library out of it, then fill it with the set of */ | |
| 145 | /* default drivers. */ | |
| 146 | ||
| 147 | error = FT_New_Library( memory, library ); | |
| 148 | if ( !error ) | |
| 149 | FT_Add_Default_Modules( *library ); | |
| 150 | ||
| 151 | return error; | |
| 152 | } | |
| 153 | ||
| 154 | ||
| 155 | /* END */ |