diff options
Diffstat (limited to 'src/freetype2/freetype/internal/ftdriver.h')
-rw-r--r-- | src/freetype2/freetype/internal/ftdriver.h | 194 |
1 files changed, 182 insertions, 12 deletions
diff --git a/src/freetype2/freetype/internal/ftdriver.h b/src/freetype2/freetype/internal/ftdriver.h index 97f3fd0..1d06997 100644 --- a/src/freetype2/freetype/internal/ftdriver.h +++ b/src/freetype2/freetype/internal/ftdriver.h @@ -4,7 +4,7 @@ /* */ /* 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, */ @@ -91,6 +91,7 @@ FT_BEGIN_HEADER (*FT_CharMap_CharNextFunc)( FT_CharMap charmap, FT_Long charcode ); + typedef FT_Error (*FT_Face_GetKerningFunc)( FT_Face face, FT_UInt left_glyph, @@ -104,11 +105,11 @@ FT_BEGIN_HEADER 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 ); /*************************************************************************/ @@ -145,10 +146,6 @@ FT_BEGIN_HEADER /* 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 */ @@ -180,8 +177,8 @@ FT_BEGIN_HEADER /* 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_ { @@ -243,6 +240,179 @@ FT_BEGIN_HEADER #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 |