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authorBo Xu <bo_xu@foxitsoftware.com>2014-12-19 14:29:17 -0800
committerBo Xu <bo_xu@foxitsoftware.com>2014-12-19 15:03:12 -0800
commit4c764f391a4cfb82c81117cf9f249a8598be1cc5 (patch)
tree7d0cc6e2db4182a12ecab5f528c9bfccb4b7df6e /third_party/freetype/include/internal/ftdriver.h
parentd44e39279b08c0954f07283b4fb3e7f3e292e4de (diff)
downloadpdfium-4c764f391a4cfb82c81117cf9f249a8598be1cc5.tar.xz
XFA: merge patch from CL 815103002
Update freetype to 2.5.4. Put freetype into third_party directory, cleaning up header files. Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h. This patch removes the additional Foxit wrapper to make further update easier. Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update: third_party/freetype/include/config/ftmodule.h third_party/freetype/include/config/ftoption.h BUG=407341 R=thestig@chromium.org Review URL: https://codereview.chromium.org/815103002
Diffstat (limited to 'third_party/freetype/include/internal/ftdriver.h')
-rw-r--r--third_party/freetype/include/internal/ftdriver.h409
1 files changed, 409 insertions, 0 deletions
diff --git a/third_party/freetype/include/internal/ftdriver.h b/third_party/freetype/include/internal/ftdriver.h
new file mode 100644
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+++ b/third_party/freetype/include/internal/ftdriver.h
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+/***************************************************************************/
+/* */
+/* ftdriver.h */
+/* */
+/* FreeType font driver interface (specification). */
+/* */
+/* Copyright 1996-2003, 2006, 2008, 2011-2013 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 );
+
+ 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. */
+ /* 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;
+
+ 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;
+
+
+ /*************************************************************************/
+ /* */
+ /* <Macro> */
+ /* FT_DECLARE_DRIVER */
+ /* */
+ /* <Description> */
+ /* Used to create a forward declaration of an FT_Driver_ClassRec */
+ /* struct 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' function has to be */
+ /* called with a pointer where the allocated structure 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' to allow you to manually allocate and */
+ /* initialize any additional global data, like a 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. Also the `pic_init' and */
+ /* `pic_free' functions should be declared in `pic.h', to be referred */
+ /* by driver definition calling `FT_DEFINE_DRIVER' in following. */
+ /* */
+ /* 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
+
+#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_, \
+ 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_, \
+ \
+ load_glyph_, \
+ \
+ get_kerning_, \
+ attach_file_, \
+ get_advances_, \
+ \
+ request_size_, \
+ select_size_ \
+ };
+
+#else /* FT_CONFIG_OPTION_PIC */
+
+#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_, \
+ load_glyph_, \
+ get_kerning_, \
+ attach_file_, \
+ get_advances_, \
+ request_size_, \
+ select_size_ ) \
+ 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 = NULL; \
+ 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_; \
+ \
+ 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 */
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