+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftmodule.h */
-/* */
-/* FreeType modules public interface (specification). */
-/* */
-/* Copyright 1996-2001 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef __FTMODULE_H__
-#define __FTMODULE_H__
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-
-FT_BEGIN_HEADER
-
-
- /*************************************************************************/
- /* */
- /* <Section> */
- /* module_management */
- /* */
- /* <Title> */
- /* Module Management */
- /* */
- /* <Abstract> */
- /* How to add, upgrade, and remove modules from FreeType. */
- /* */
- /* <Description> */
- /* The definitions below are used to manage modules within FreeType. */
- /* Modules can be added, upgraded, and removed at runtime. */
- /* */
- /*************************************************************************/
-
-
- /* module bit flags */
- typedef enum FT_Module_Flags_
- {
- ft_module_font_driver = 1, /* this module is a font driver */
- ft_module_renderer = 2, /* this module is a renderer */
- ft_module_hinter = 4, /* this module is a glyph hinter */
- ft_module_styler = 8, /* this module is a styler */
-
- ft_module_driver_scalable = 0x100, /* the driver supports scalable */
- /* fonts */
- ft_module_driver_no_outlines = 0x200, /* the driver does not support */
- /* vector outlines */
- ft_module_driver_has_hinter = 0x400 /* the driver provides its own */
- /* hinter */
-
- } FT_Module_Flags;
-
-
- typedef void
- (*FT_Module_Interface)( void );
-
- typedef FT_Error
- (*FT_Module_Constructor)( FT_Module module );
-
- typedef void
- (*FT_Module_Destructor)( FT_Module module );
-
- typedef FT_Module_Interface
- (*FT_Module_Requester)( FT_Module module,
- const char* name );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Module_Class */
- /* */
- /* <Description> */
- /* The module class descriptor. */
- /* */
- /* <Fields> */
- /* module_flags :: Bit flags describing the module. */
- /* */
- /* module_size :: The size of one module object/instance in */
- /* bytes. */
- /* */
- /* module_name :: The name of the module. */
- /* */
- /* module_version :: The version, as a 16.16 fixed number */
- /* (major.minor). */
- /* */
- /* module_requires :: The version of FreeType this module requires */
- /* (starts at version 2.0, i.e 0x20000) */
- /* */
- /* module_init :: A function used to initialize (not create) a */
- /* new module object. */
- /* */
- /* module_done :: A function used to finalize (not destroy) a */
- /* given module object */
- /* */
- /* get_interface :: Queries a given module for a specific */
- /* interface by name. */
- /* */
- typedef struct FT_Module_Class_
- {
- FT_ULong module_flags;
- FT_Int module_size;
- const FT_String* module_name;
- FT_Fixed module_version;
- FT_Fixed module_requires;
-
- const void* module_interface;
-
- FT_Module_Constructor module_init;
- FT_Module_Destructor module_done;
- FT_Module_Requester get_interface;
-
- } FT_Module_Class;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add_Module */
- /* */
- /* <Description> */
- /* Adds a new module to a given library instance. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library object. */
- /* */
- /* <Input> */
- /* clazz :: A pointer to class descriptor for the module. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* An error will be returned if a module already exists by that name, */
- /* or if the module requires a version of FreeType that is too great. */
- /* */
- FT_EXPORT( FT_Error )
- FT_Add_Module( FT_Library library,
- const FT_Module_Class* clazz );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Module */
- /* */
- /* <Description> */
- /* Finds a module by its name. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* module_name :: The module's name (as an ASCII string). */
- /* */
- /* <Return> */
- /* A module handle. 0 if none was found. */
- /* */
- /* <Note> */
- /* You should better be familiar with FreeType internals to know */
- /* which module to look for :-) */
- /* */
- FT_EXPORT( FT_Module )
- FT_Get_Module( FT_Library library,
- const char* module_name );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Remove_Module */
- /* */
- /* <Description> */
- /* Removes a given module from a library instance. */
- /* */
- /* <InOut> */
- /* library :: A handle to a library object. */
- /* */
- /* <Input> */
- /* module :: A handle to a module object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The module object is destroyed by the function in case of success. */
- /* */
- FT_EXPORT( FT_Error )
- FT_Remove_Module( FT_Library library,
- FT_Module module );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Library */
- /* */
- /* <Description> */
- /* This function is used to create a new FreeType library instance */
- /* from a given memory object. It is thus possible to use libraries */
- /* with distinct memory allocators within the same program. */
- /* */
- /* <Input> */
- /* memory :: A handle to the original memory object. */
- /* */
- /* <Output> */
- /* alibrary :: A pointer to handle of a new library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT( FT_Error )
- FT_New_Library( FT_Memory memory,
- FT_Library *alibrary );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Library */
- /* */
- /* <Description> */
- /* Discards a given library object. This closes all drivers and */
- /* discards all resource objects. */
- /* */
- /* <Input> */
- /* library :: A handle to the target library. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT( FT_Error )
- FT_Done_Library( FT_Library library );
-
-
-
- typedef void
- (*FT_DebugHook_Func)( void* arg );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Debug_Hook */
- /* */
- /* <Description> */
- /* Sets a debug hook function for debugging the interpreter of a font */
- /* format. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library object. */
- /* */
- /* <Input> */
- /* hook_index :: The index of the debug hook. You should use the */
- /* values defined in ftobjs.h, e.g. */
- /* FT_DEBUG_HOOK_TRUETYPE. */
- /* */
- /* debug_hook :: The function used to debug the interpreter. */
- /* */
- /* <Note> */
- /* Currently, four debug hook slots are available, but only two (for */
- /* the TrueType and the Type 1 interpreter) are defined. */
- /* */
- FT_EXPORT( void )
- FT_Set_Debug_Hook( FT_Library library,
- FT_UInt hook_index,
- FT_DebugHook_Func debug_hook );
-
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add_Default_Modules */
- /* */
- /* <Description> */
- /* Adds the set of default drivers to a given library object. */
- /* This is only useful when you create a library object with */
- /* FT_New_Library() (usually to plug a custom memory manager). */
- /* */
- /* <InOut> */
- /* library :: A handle to a new library object. */
- /* */
- FT_EXPORT( void )
- FT_Add_Default_Modules( FT_Library library );
-
-
- /* */
-
-
-FT_END_HEADER
-
-#endif /* __FTMODULE_H__ */
-
-
-/* END */
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