--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libfreetype/include/freetype/internal/ftdriver.h Mon Apr 25 01:46:54 2011 +0200
@@ -0,0 +1,422 @@
+/***************************************************************************/
+/* */
+/* ftdriver.h */
+/* */
+/* FreeType font driver interface (specification). */
+/* */
+/* 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, */
+/* 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 __FTDRIVER_H__
+#define __FTDRIVER_H__
+
+
+#include <ft2build.h>
+#include FT_MODULE_H
+
+
+FT_BEGIN_HEADER
+
+
+ typedef FT_Error
+ (*FT_Face_InitFunc)( FT_Stream stream,
+ FT_Face face,
+ FT_Int typeface_index,
+ FT_Int num_params,
+ FT_Parameter* parameters );
+
+ typedef void
+ (*FT_Face_DoneFunc)( FT_Face face );
+
+
+ typedef FT_Error
+ (*FT_Size_InitFunc)( FT_Size size );
+
+ typedef void
+ (*FT_Size_DoneFunc)( FT_Size size );
+
+
+ typedef FT_Error
+ (*FT_Slot_InitFunc)( FT_GlyphSlot slot );
+
+ typedef void
+ (*FT_Slot_DoneFunc)( FT_GlyphSlot slot );
+
+
+ typedef FT_Error
+ (*FT_Size_RequestFunc)( FT_Size size,
+ FT_Size_Request req );
+
+ typedef FT_Error
+ (*FT_Size_SelectFunc)( FT_Size size,
+ FT_ULong size_index );
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+
+ typedef FT_Error
+ (*FT_Size_ResetPointsFunc)( FT_Size size,
+ FT_F26Dot6 char_width,
+ FT_F26Dot6 char_height,
+ FT_UInt horz_resolution,
+ FT_UInt vert_resolution );
+
+ typedef FT_Error
+ (*FT_Size_ResetPixelsFunc)( FT_Size size,
+ FT_UInt pixel_width,
+ FT_UInt pixel_height );
+
+#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
+
+ typedef FT_Error
+ (*FT_Slot_LoadFunc)( FT_GlyphSlot slot,
+ FT_Size size,
+ FT_UInt glyph_index,
+ FT_Int32 load_flags );
+
+
+ typedef FT_UInt
+ (*FT_CharMap_CharIndexFunc)( FT_CharMap charmap,
+ FT_Long charcode );
+
+ typedef FT_Long
+ (*FT_CharMap_CharNextFunc)( FT_CharMap charmap,
+ FT_Long charcode );
+
+
+ typedef FT_Error
+ (*FT_Face_GetKerningFunc)( FT_Face face,
+ FT_UInt left_glyph,
+ FT_UInt right_glyph,
+ FT_Vector* kerning );
+
+
+ typedef FT_Error
+ (*FT_Face_AttachFunc)( FT_Face face,
+ FT_Stream stream );
+
+
+ typedef FT_Error
+ (*FT_Face_GetAdvancesFunc)( FT_Face face,
+ FT_UInt first,
+ FT_UInt count,
+ FT_Int32 flags,
+ FT_Fixed* advances );
+
+
+ /*************************************************************************/
+ /* */
+ /* <Struct> */
+ /* FT_Driver_ClassRec */
+ /* */
+ /* <Description> */
+ /* The font driver class. This structure mostly contains pointers to */
+ /* driver methods. */
+ /* */
+ /* <Fields> */
+ /* root :: The parent module. */
+ /* */
+ /* face_object_size :: The size of a face object in bytes. */
+ /* */
+ /* size_object_size :: The size of a size object in bytes. */
+ /* */
+ /* slot_object_size :: The size of a glyph object in bytes. */
+ /* */
+ /* init_face :: The format-specific face constructor. */
+ /* */
+ /* done_face :: The format-specific face destructor. */
+ /* */
+ /* init_size :: The format-specific size constructor. */
+ /* */
+ /* done_size :: The format-specific size destructor. */
+ /* */
+ /* init_slot :: The format-specific slot constructor. */
+ /* */
+ /* done_slot :: The format-specific slot destructor. */
+ /* */
+ /* */
+ /* load_glyph :: A function handle to load a glyph to a slot. */
+ /* 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 */
+ /* kerning. */
+ /* */
+ /* attach_file :: This function handle is used to read */
+ /* additional data for a face from another */
+ /* file/stream. For example, this can be used to */
+ /* add data from AFM or PFM files on a Type 1 */
+ /* face, or a CIDMap on a CID-keyed face. */
+ /* */
+ /* get_advances :: A function handle used to return advance */
+ /* widths of `count' glyphs (in font units), */
+ /* starting at `first'. The `vertical' flag must */
+ /* be set to get vertical advance heights. The */
+ /* `advances' buffer is caller-allocated. */
+ /* Currently not implemented. The idea of this */
+ /* function is to be able to perform */
+ /* device-independent text layout without loading */
+ /* a single glyph image. */
+ /* */
+ /* request_size :: A handle to a function used to request the new */
+ /* character size. Can be set to 0 if the */
+ /* scaling done in the base layer suffices. */
+ /* */
+ /* select_size :: A handle to a function used to select a new */
+ /* fixed size. It is used only if */
+ /* @FT_FACE_FLAG_FIXED_SIZES is set. Can be set */
+ /* to 0 if the scaling done in the base layer */
+ /* suffices. */
+ /* <Note> */
+ /* Most function pointers, with the exception of `load_glyph', can be */
+ /* set to 0 to indicate a default behaviour. */
+ /* */
+ typedef struct FT_Driver_ClassRec_
+ {
+ FT_Module_Class root;
+
+ FT_Long face_object_size;
+ FT_Long size_object_size;
+ FT_Long slot_object_size;
+
+ FT_Face_InitFunc init_face;
+ FT_Face_DoneFunc done_face;
+
+ FT_Size_InitFunc init_size;
+ FT_Size_DoneFunc done_size;
+
+ FT_Slot_InitFunc init_slot;
+ FT_Slot_DoneFunc done_slot;
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+
+ FT_Size_ResetPointsFunc set_char_sizes;
+ FT_Size_ResetPixelsFunc set_pixel_sizes;
+
+#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
+
+ FT_Slot_LoadFunc load_glyph;
+
+ FT_Face_GetKerningFunc get_kerning;
+ FT_Face_AttachFunc attach_file;
+ FT_Face_GetAdvancesFunc get_advances;
+
+ /* since version 2.2 */
+ FT_Size_RequestFunc request_size;
+ FT_Size_SelectFunc select_size;
+
+ } FT_Driver_ClassRec, *FT_Driver_Class;
+
+
+ /*
+ * The following functions are used as stubs for `set_char_sizes' and
+ * `set_pixel_sizes'; the code uses `request_size' and `select_size'
+ * functions instead.
+ *
+ * Implementation is in `src/base/ftobjs.c'.
+ */
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+
+ FT_BASE( FT_Error )
+ ft_stub_set_char_sizes( FT_Size size,
+ FT_F26Dot6 width,
+ FT_F26Dot6 height,
+ FT_UInt horz_res,
+ FT_UInt vert_res );
+
+ FT_BASE( FT_Error )
+ ft_stub_set_pixel_sizes( FT_Size size,
+ FT_UInt width,
+ FT_UInt height );
+
+#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
+
+#endif /* __FTDRIVER_H__ */
+
+
+/* END */