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@ -397,6 +397,14 @@ FT_BEGIN_HEADER |
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#endif |
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/* Use FT_LOCAL and FT_LOCAL_DEF to declare and define, respectively, */ |
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/* a function that gets used only within the scope of a module. */ |
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/* Normally, both the header and source code files for such a */ |
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/* function are within a single module directory. */ |
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/* */ |
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/* Intra-module arrays should be tagged with FT_LOCAL_ARRAY and */ |
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/* FT_LOCAL_ARRAY_DEF. */ |
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/* */ |
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#ifdef FT_MAKE_OPTION_SINGLE_OBJECT |
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#define FT_LOCAL( x ) static x |
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@ -418,6 +426,12 @@ FT_BEGIN_HEADER |
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#define FT_LOCAL_ARRAY_DEF( x ) const x |
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/* Use FT_BASE and FT_BASE_DEF to declare and define, respectively, */ |
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/* functions that are used in more than a single module. In the */ |
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/* current setup this implies that the declaration is in a header */ |
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/* file in the `include/freetype/internal' directory, and the */ |
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/* function body is in a file in `src/base'. */ |
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/* */ |
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#ifndef FT_BASE |
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#ifdef __cplusplus |
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@ -440,6 +454,37 @@ FT_BEGIN_HEADER |
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#endif /* !FT_BASE_DEF */ |
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/* When compiling FreeType as a DLL, some systems/compilers need a */ |
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/* special attribute in front OR after the return type of function */ |
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/* declarations. */ |
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/* */ |
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/* Two macros are used within the FreeType source code to define */ |
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/* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ |
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/* */ |
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/* FT_EXPORT( return_type ) */ |
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/* */ |
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/* is used in a function declaration, as in */ |
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/* */ |
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/* FT_EXPORT( FT_Error ) */ |
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/* FT_Init_FreeType( FT_Library* alibrary ); */ |
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/* */ |
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/* */ |
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/* FT_EXPORT_DEF( return_type ) */ |
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/* */ |
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/* is used in a function definition, as in */ |
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/* */ |
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/* FT_EXPORT_DEF( FT_Error ) */ |
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/* FT_Init_FreeType( FT_Library* alibrary ) */ |
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/* { */ |
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/* ... some code ... */ |
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/* return FT_Err_Ok; */ |
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/* } */ |
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/* */ |
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/* You can provide your own implementation of FT_EXPORT and */ |
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/* FT_EXPORT_DEF here if you want. */ |
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/* */ |
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/* To export a variable, use FT_EXPORT_VAR. */ |
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/* */ |
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#ifndef FT_EXPORT |
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#ifdef __cplusplus |
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@ -483,7 +528,13 @@ FT_BEGIN_HEADER |
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/* functions which are accessed by (global) function pointers. */ |
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/* */ |
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/* */ |
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/* FT_CALLBACK_DEF is used to _define_ a callback function. */ |
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/* FT_CALLBACK_DEF is used to _define_ a callback function, */ |
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/* located in the same source code file as the structure that uses */ |
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/* it. */ |
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/* */ |
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/* FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare */ |
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/* and define a callback function, respectively, in a similar way */ |
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/* as FT_BASE and FT_BASE_DEF work. */ |
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/* */ |
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/* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ |
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/* contains pointers to callback functions. */ |
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@ -503,6 +554,16 @@ FT_BEGIN_HEADER |
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#endif |
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#endif /* FT_CALLBACK_DEF */ |
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#ifndef FT_BASE_CALLBACK |
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#ifdef __cplusplus |
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#define FT_BASE_CALLBACK( x ) extern "C" x |
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#define FT_BASE_CALLBACK_DEF( x ) extern "C" x |
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#else |
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#define FT_BASE_CALLBACK( x ) extern x |
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#define FT_BASE_CALLBACK_DEF( x ) x |
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#endif |
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#endif /* FT_BASE_CALLBACK */ |
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#ifndef FT_CALLBACK_TABLE |
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#ifdef __cplusplus |
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#define FT_CALLBACK_TABLE extern "C" |
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Werner Lemberg
7 years ago