Context Navigation

source: OGRE/trunk/ogrenew/Dependencies/include/freetype/internal/ftdriver.h @ 657

Revision 657, 9.7 KB checked in by mattausch, 18 years ago (diff)
added ogre dependencies and patched ogre sources

Line
1	/***************************************************************************/
2	/* */
3	/* ftdriver.h */
4	/* */
5	/* FreeType font driver interface (specification). */
6	/* */
7	/* Copyright 1996-2001, 2002, 2003 by */
8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9	/* */
10	/* This file is part of the FreeType project, and may only be used, */
11	/* modified, and distributed under the terms of the FreeType project */
12	/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13	/* this file you indicate that you have read the license and */
14	/* understand and accept it fully. */
15	/* */
16	/***************************************************************************/
17
18
19	#ifndef __FTDRIVER_H__
20	#define __FTDRIVER_H__
21
22
23	#include <ft2build.h>
24	#include FT_MODULE_H
25
26
27	FT_BEGIN_HEADER
28
29
30	typedef FT_Error
31	(*FT_Face_InitFunc)( FT_Stream stream,
32	FT_Face face,
33	FT_Int typeface_index,
34	FT_Int num_params,
35	FT_Parameter* parameters );
36
37	typedef void
38	(*FT_Face_DoneFunc)( FT_Face face );
39
40
41	typedef FT_Error
42	(*FT_Size_InitFunc)( FT_Size size );
43
44	typedef void
45	(*FT_Size_DoneFunc)( FT_Size size );
46
47
48	typedef FT_Error
49	(*FT_Slot_InitFunc)( FT_GlyphSlot slot );
50
51	typedef void
52	(*FT_Slot_DoneFunc)( FT_GlyphSlot slot );
53
54
55	typedef FT_Error
56	(*FT_Size_ResetPointsFunc)( FT_Size size,
57	FT_F26Dot6 char_width,
58	FT_F26Dot6 char_height,
59	FT_UInt horz_resolution,
60	FT_UInt vert_resolution );
61
62	typedef FT_Error
63	(*FT_Size_ResetPixelsFunc)( FT_Size size,
64	FT_UInt pixel_width,
65	FT_UInt pixel_height );
66
67	typedef FT_Error
68	(*FT_Slot_LoadFunc)( FT_GlyphSlot slot,
69	FT_Size size,
70	FT_UInt glyph_index,
71	FT_Int32 load_flags );
72
73
74	typedef FT_UInt
75	(*FT_CharMap_CharIndexFunc)( FT_CharMap charmap,
76	FT_Long charcode );
77
78	typedef FT_Long
79	(*FT_CharMap_CharNextFunc)( FT_CharMap charmap,
80	FT_Long charcode );
81
82	typedef FT_Error
83	(*FT_Face_GetKerningFunc)( FT_Face face,
84	FT_UInt left_glyph,
85	FT_UInt right_glyph,
86	FT_Vector* kerning );
87
88
89	typedef FT_Error
90	(*FT_Face_AttachFunc)( FT_Face face,
91	FT_Stream stream );
92
93
94	typedef FT_Error
95	(*FT_Face_GetAdvancesFunc)( FT_Face face,
96	FT_UInt first,
97	FT_UInt count,
98	FT_Bool vertical,
99	FT_UShort* advances );
100
101
102	/*************************************************************************/
103	/* */
104	/* <Struct> */
105	/* FT_Driver_ClassRec */
106	/* */
107	/* <Description> */
108	/* The font driver class. This structure mostly contains pointers to */
109	/* driver methods. */
110	/* */
111	/* <Fields> */
112	/* root :: The parent module. */
113	/* */
114	/* face_object_size :: The size of a face object in bytes. */
115	/* */
116	/* size_object_size :: The size of a size object in bytes. */
117	/* */
118	/* slot_object_size :: The size of a glyph object in bytes. */
119	/* */
120	/* init_face :: The format-specific face constructor. */
121	/* */
122	/* done_face :: The format-specific face destructor. */
123	/* */
124	/* init_size :: The format-specific size constructor. */
125	/* */
126	/* done_size :: The format-specific size destructor. */
127	/* */
128	/* init_slot :: The format-specific slot constructor. */
129	/* */
130	/* done_slot :: The format-specific slot destructor. */
131	/* */
132	/* set_char_sizes :: A handle to a function used to set the new */
133	/* character size in points + resolution. Can be */
134	/* set to 0 to indicate default behaviour. */
135	/* */
136	/* set_pixel_sizes :: A handle to a function used to set the new */
137	/* character size in pixels. Can be set to 0 to */
138	/* indicate default behaviour. */
139	/* */
140	/* load_glyph :: A function handle to load a given glyph image */
141	/* in a slot. This field is mandatory! */
142	/* */
143	/* get_char_index :: A function handle to return the glyph index of */
144	/* a given character for a given charmap. This */
145	/* field is mandatory! */
146	/* */
147	/* get_kerning :: A function handle to return the unscaled */
148	/* kerning for a given pair of glyphs. Can be */
149	/* set to 0 if the format doesn't support */
150	/* kerning. */
151	/* */
152	/* attach_file :: This function handle is used to read */
153	/* additional data for a face from another */
154	/* file/stream. For example, this can be used to */
155	/* add data from AFM or PFM files on a Type 1 */
156	/* face, or a CIDMap on a CID-keyed face. */
157	/* */
158	/* get_advances :: A function handle used to return advance */
159	/* widths of 'count' glyphs (in font units), */
160	/* starting at `first'. The `vertical' flag must */
161	/* be set to get vertical advance heights. The */
162	/* `advances' buffer is caller-allocated. */
163	/* Currently not implemented. The idea of this */
164	/* function is to be able to perform */
165	/* device-independent text layout without loading */
166	/* a single glyph image. */
167	/* */
168	/* <Note> */
169	/* Most function pointers, with the exception of `load_glyph' and */
170	/* `get_char_index' can be set to 0 to indicate a default behaviour. */
171	/* */
172	typedef struct FT_Driver_ClassRec_
173	{
174	FT_Module_Class root;
175
176	FT_Long face_object_size;
177	FT_Long size_object_size;
178	FT_Long slot_object_size;
179
180	FT_Face_InitFunc init_face;
181	FT_Face_DoneFunc done_face;
182
183	FT_Size_InitFunc init_size;
184	FT_Size_DoneFunc done_size;
185
186	FT_Slot_InitFunc init_slot;
187	FT_Slot_DoneFunc done_slot;
188
189	FT_Size_ResetPointsFunc set_char_sizes;
190	FT_Size_ResetPixelsFunc set_pixel_sizes;
191
192	FT_Slot_LoadFunc load_glyph;
193
194	FT_Face_GetKerningFunc get_kerning;
195	FT_Face_AttachFunc attach_file;
196	FT_Face_GetAdvancesFunc get_advances;
197
198	} FT_Driver_ClassRec, *FT_Driver_Class;
199
200
201	FT_END_HEADER
202
203	#endif /* __FTDRIVER_H__ */
204
205
206	/* END */

Note: See TracBrowser for help on using the repository browser.

Download in other formats: