162 lines
5.6 KiB
C
162 lines
5.6 KiB
C
/***************************************************************************/
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/* */
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/* ftinit.c */
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/* */
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/* FreeType initialization layer (body). */
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/* */
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/* Copyright 1996-2001, 2002, 2005 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/*************************************************************************/
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/* */
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/* The purpose of this file is to implement the following two */
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/* functions: */
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/* */
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/* FT_Add_Default_Modules(): */
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/* This function is used to add the set of default modules to a */
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/* fresh new library object. The set is taken from the header file */
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/* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */
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/* Build System' for more information. */
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/* */
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/* FT_Init_FreeType(): */
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/* This function creates a system object for the current platform, */
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/* builds a library out of it, then calls FT_Default_Drivers(). */
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/* */
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/* Note that even if FT_Init_FreeType() uses the implementation of the */
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/* system object defined at build time, client applications are still */
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/* able to provide their own `ftsystem.c'. */
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/* */
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/*************************************************************************/
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#include <ft2build.h>
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#include FT_CONFIG_CONFIG_H
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#include FT_INTERNAL_OBJECTS_H
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#include FT_INTERNAL_DEBUG_H
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#include FT_MODULE_H
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/*************************************************************************/
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/* */
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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/* messages during execution. */
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/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_init
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#undef FT_USE_MODULE
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#ifdef __cplusplus
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#define FT_USE_MODULE( x ) extern "C" const FT_Module_Class x;
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#else
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#define FT_USE_MODULE( x ) extern const FT_Module_Class x;
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#endif
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#include FT_CONFIG_MODULES_H
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#undef FT_USE_MODULE
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#define FT_USE_MODULE( x ) (const FT_Module_Class*)&(x),
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static
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const FT_Module_Class* const ft_default_modules[] =
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{
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#include FT_CONFIG_MODULES_H
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0
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};
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/* documentation is in ftmodapi.h */
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FT_EXPORT_DEF( void )
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FT_Add_Default_Modules( FT_Library library )
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{
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FT_Error error;
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const FT_Module_Class* const* cur;
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/* test for valid `library' delayed to FT_Add_Module() */
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cur = ft_default_modules;
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while ( *cur )
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{
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error = FT_Add_Module( library, *cur );
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/* notify errors, but don't stop */
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if ( error )
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{
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FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = 0x%x\n",
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(*cur)->module_name, error ));
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}
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cur++;
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}
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}
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/* documentation is in freetype.h */
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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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FT_Error error;
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FT_Memory memory;
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/* First of all, allocate a new system object -- this function is part */
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/* of the system-specific component, i.e. `ftsystem.c'. */
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memory = FT_New_Memory();
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if ( !memory )
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{
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FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" ));
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return FT_Err_Unimplemented_Feature;
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}
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/* build a library out of it, then fill it with the set of */
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/* default drivers. */
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error = FT_New_Library( memory, alibrary );
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if ( !error )
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{
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(*alibrary)->version_major = FREETYPE_MAJOR;
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(*alibrary)->version_minor = FREETYPE_MINOR;
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(*alibrary)->version_patch = FREETYPE_PATCH;
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FT_Add_Default_Modules( *alibrary );
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}
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return error;
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}
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/* documentation is in freetype.h */
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FT_EXPORT_DEF( FT_Error )
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FT_Done_FreeType( FT_Library library )
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{
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if ( library )
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{
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FT_Memory memory = library->memory;
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/* Discard the library object */
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FT_Done_Library( library );
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/* discard memory manager */
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FT_Done_Memory( memory );
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}
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return FT_Err_Ok;
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}
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/* END */
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