/* */
/* FreeType font driver interface (specification). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2006 by */
+/* Copyright 1996-2001, 2002, 2003, 2006, 2008 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
(*FT_CharMap_CharNextFunc)( FT_CharMap charmap,
FT_Long charcode );
+
typedef FT_Error
(*FT_Face_GetKerningFunc)( FT_Face face,
FT_UInt left_glyph,
typedef FT_Error
- (*FT_Face_GetAdvancesFunc)( FT_Face face,
- FT_UInt first,
- FT_UInt count,
- FT_Bool vertical,
- FT_UShort* advances );
+ (*FT_Face_GetAdvancesFunc)( FT_Face face,
+ FT_UInt first,
+ FT_UInt count,
+ FT_Int32 flags,
+ FT_Fixed* advances );
/*************************************************************************/
/* load_glyph :: A function handle to load a glyph to a slot. */
/* This field is mandatory! */
/* */
- /* get_char_index :: A function handle to return the glyph index of */
- /* a given character for a given charmap. This */
- /* field is mandatory! */
- /* */
/* get_kerning :: A function handle to return the unscaled */
/* kerning for a given pair of glyphs. Can be */
/* set to 0 if the format doesn't support */
/* to 0 if the scaling done in the base layer */
/* suffices. */
/* <Note> */
- /* Most function pointers, with the exception of `load_glyph' and */
- /* `get_char_index' can be set to 0 to indicate a default behaviour. */
+ /* Most function pointers, with the exception of `load_glyph', can be */
+ /* set to 0 to indicate a default behaviour. */
/* */
typedef struct FT_Driver_ClassRec_
{
#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
+ /*************************************************************************/
+ /* */
+ /* <Macro> */
+ /* FT_DECLARE_DRIVER */
+ /* */
+ /* <Description> */
+ /* Used to create a forward declaration of a */
+ /* FT_Driver_ClassRec stract instance. */
+ /* */
+ /* <Macro> */
+ /* FT_DEFINE_DRIVER */
+ /* */
+ /* <Description> */
+ /* Used to initialize an instance of FT_Driver_ClassRec struct. */
+ /* */
+ /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */
+ /* to called with a pointer where the allocated stracture is returned.*/
+ /* And when it is no longer needed a Destroy function needs */
+ /* to be called to release that allocation. */
+ /* fcinit.c (ft_create_default_module_classes) already contains */
+ /* a mechanism to call these functions for the default modules */
+ /* described in ftmodule.h */
+ /* */
+ /* Notice that the created Create and Destroy functions call */
+ /* pic_init and pic_free function to allow you to manually allocate */
+ /* and initialize any additional global data, like module specific */
+ /* interface, and put them in the global pic container defined in */
+ /* ftpic.h. if you don't need them just implement the functions as */
+ /* empty to resolve the link error. */
+ /* */
+ /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
+ /* allocated in the global scope (or the scope where the macro */
+ /* is used). */
+ /* */
+#ifndef FT_CONFIG_OPTION_PIC
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+#define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) \
+ a_, b_,
+#else
+ #define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_)
+#endif
+
+#define FT_DECLARE_DRIVER(class_) \
+ FT_CALLBACK_TABLE \
+ const FT_Driver_ClassRec class_;
+
+#define FT_DEFINE_DRIVER(class_, \
+ flags_, size_, name_, version_, requires_, \
+ interface_, init_, done_, get_interface_, \
+ face_object_size_, size_object_size_, \
+ slot_object_size_, init_face_, done_face_, \
+ init_size_, done_size_, init_slot_, done_slot_, \
+ old_set_char_sizes_, old_set_pixel_sizes_, \
+ load_glyph_, get_kerning_, attach_file_, \
+ get_advances_, request_size_, select_size_ ) \
+ FT_CALLBACK_TABLE_DEF \
+ const FT_Driver_ClassRec class_ = \
+ { \
+ FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_,interface_, \
+ init_,done_,get_interface_) \
+ \
+ face_object_size_, \
+ size_object_size_, \
+ slot_object_size_, \
+ \
+ init_face_, \
+ done_face_, \
+ \
+ init_size_, \
+ done_size_, \
+ \
+ init_slot_, \
+ done_slot_, \
+ \
+ FT_DEFINE_DRIVERS_OLD_INTERNALS(old_set_char_sizes_, old_set_pixel_sizes_) \
+ \
+ load_glyph_, \
+ \
+ get_kerning_, \
+ attach_file_, \
+ get_advances_, \
+ \
+ request_size_, \
+ select_size_ \
+ };
+
+#else /* FT_CONFIG_OPTION_PIC */
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+#define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) \
+ clazz->set_char_sizes = a_; \
+ clazz->set_pixel_sizes = b_;
+#else
+ #define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_)
+#endif
+
+#define FT_DECLARE_DRIVER(class_) FT_DECLARE_MODULE(class_)
+
+#define FT_DEFINE_DRIVER(class_, \
+ flags_, size_, name_, version_, requires_, \
+ interface_, init_, done_, get_interface_, \
+ face_object_size_, size_object_size_, \
+ slot_object_size_, init_face_, done_face_, \
+ init_size_, done_size_, init_slot_, done_slot_, \
+ old_set_char_sizes_, old_set_pixel_sizes_, \
+ load_glyph_, get_kerning_, attach_file_, \
+ get_advances_, request_size_, select_size_ ) \
+ void class_##_pic_free( FT_Library library ); \
+ FT_Error class_##_pic_init( FT_Library library ); \
+ \
+ void \
+ FT_Destroy_Class_##class_( FT_Library library, \
+ FT_Module_Class* clazz ) \
+ { \
+ FT_Memory memory = library->memory; \
+ FT_Driver_Class dclazz = (FT_Driver_Class)clazz; \
+ class_##_pic_free( library ); \
+ if ( dclazz ) \
+ FT_FREE( dclazz ); \
+ } \
+ \
+ FT_Error \
+ FT_Create_Class_##class_( FT_Library library, \
+ FT_Module_Class** output_class ) \
+ { \
+ FT_Driver_Class clazz; \
+ FT_Error error; \
+ FT_Memory memory = library->memory; \
+ \
+ if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \
+ return error; \
+ \
+ error = class_##_pic_init( library ); \
+ if(error) \
+ { \
+ FT_FREE( clazz ); \
+ return error; \
+ } \
+ \
+ FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_,interface_, \
+ init_,done_,get_interface_) \
+ \
+ clazz->face_object_size = face_object_size_; \
+ clazz->size_object_size = size_object_size_; \
+ clazz->slot_object_size = slot_object_size_; \
+ \
+ clazz->init_face = init_face_; \
+ clazz->done_face = done_face_; \
+ \
+ clazz->init_size = init_size_; \
+ clazz->done_size = done_size_; \
+ \
+ clazz->init_slot = init_slot_; \
+ clazz->done_slot = done_slot_; \
+ \
+ FT_DEFINE_DRIVERS_OLD_INTERNALS(old_set_char_sizes_, old_set_pixel_sizes_) \
+ \
+ clazz->load_glyph = load_glyph_; \
+ \
+ clazz->get_kerning = get_kerning_; \
+ clazz->attach_file = attach_file_; \
+ clazz->get_advances = get_advances_; \
+ \
+ clazz->request_size = request_size_; \
+ clazz->select_size = select_size_; \
+ \
+ *output_class = (FT_Module_Class*)clazz; \
+ return FT_Err_Ok; \
+ }
+
+
+#endif /* FT_CONFIG_OPTION_PIC */
FT_END_HEADER
projects / reactos.git / blobdiff