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1 | /******************************************************************* |
1 | /***************************************************************************/ |
2 | * |
- | |
- | 2 | /* */ |
|
3 | * freetype.h |
3 | /* freetype.h */ |
4 | * |
- | |
- | 4 | /* */ |
|
5 | * High-level interface specification. |
5 | /* FreeType high-level API and common types (specification only). */ |
6 | * |
- | |
- | 6 | /* */ |
|
7 | * Copyright 1996-1999 by |
7 | /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ |
- | 8 | /* 2010 by */ |
|
8 | * David Turner, Robert Wilhelm, and Werner Lemberg. |
9 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
9 | * |
- | |
- | 10 | /* */ |
|
10 | * This file is part of the FreeType project and may only be used, |
11 | /* 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 | /* modified, and distributed under the terms of the FreeType project */ |
12 | * license, LICENSE.TXT. By continuing to use, modify, or distribute |
13 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
13 | * this file you indicate that you have read the license and |
14 | /* this file you indicate that you have read the license and */ |
14 | * understand and accept it fully. |
15 | /* understand and accept it fully. */ |
15 | * |
- | |
16 | * Note: |
- | |
17 | * |
- | |
18 | * This is the only file that should be included by client |
- | |
19 | * application sources. All other types and functions defined |
- | |
20 | * in the `tt*.h' files are library internals and should not be |
16 | /* */ |
21 | * included. |
- | |
22 | * |
- | |
23 | ******************************************************************/ |
17 | /***************************************************************************/ |
Line 24... | Line -... | ||
24 | - | ||
25 | #ifndef FREETYPE_H |
- | |
Line -... | Line 18... | ||
- | 18 | ||
- | 19 | ||
- | 20 | #ifndef FT_FREETYPE_H |
|
- | 21 | #error "`ft2build.h' hasn't been included yet!" |
|
- | 22 | #error "Please always use macros to include FreeType header files." |
|
- | 23 | #error "Example:" |
|
- | 24 | #error " #include |
|
Line 26... | Line -... | ||
26 | #define FREETYPE_H |
- | |
27 | - | ||
Line -... | Line 25... | ||
- | 25 | #error " #include FT_FREETYPE_H" |
|
- | 26 | #endif |
|
Line 28... | Line -... | ||
28 | - | ||
29 | #define TT_FREETYPE_MAJOR 1 |
- | |
Line 30... | Line 27... | ||
30 | #define TT_FREETYPE_MINOR 3 |
27 | |
31 | 28 | ||
- | 29 | #ifndef __FREETYPE_H__ |
|
- | 30 | #define __FREETYPE_H__ |
|
Line 32... | Line -... | ||
32 | - | ||
33 | #include "fterrid.h" |
- | |
34 | #include "ftnameid.h" |
- | |
Line 35... | Line -... | ||
35 | - | ||
36 | /* To make freetype.h independent from configuration files we check */ |
- | |
37 | /* whether EXPORT_DEF has been defined already. */ |
- | |
38 | - | ||
39 | #ifndef EXPORT_DEF |
31 | |
40 | #define EXPORT_DEF extern |
- | |
41 | #endif |
- | |
42 | - | ||
43 | /* The same for TT_Text. If you define the HAVE_TT_TEXT macro, you */ |
- | |
Line 44... | Line -... | ||
44 | /* have to provide a typedef declaration for TT_Text before */ |
- | |
45 | /* including this file. */ |
- | |
46 | - | ||
Line 47... | Line 32... | ||
47 | #ifndef HAVE_TT_TEXT |
32 | |
48 | #define HAVE_TT_TEXT |
33 | #include |
- | 34 | #include FT_CONFIG_CONFIG_H |
|
49 | typedef char TT_Text; /* The data type to represent */ |
35 | #include FT_ERRORS_H |
50 | /* file name string elements. */ |
36 | #include FT_TYPES_H |
- | 37 | ||
51 | #endif |
38 | |
52 | 39 | FT_BEGIN_HEADER |
|
- | 40 | ||
- | 41 | ||
- | 42 | ||
53 | #ifdef __cplusplus |
43 | /*************************************************************************/ |
54 | extern "C" { |
- | |
- | 44 | /* */ |
|
- | 45 | /* |
|
- | 46 | /* user_allocation */ |
|
55 | #endif |
47 | /* */ |
56 | - | ||
57 | 48 | /* |
|
- | 49 | /* User allocation */ |
|
Line 58... | Line -... | ||
58 | /*******************************************************************/ |
- | |
59 | /* */ |
- | |
Line 60... | Line -... | ||
60 | /* FreeType types definitions. */ |
- | |
61 | /* */ |
- | |
62 | /* All these begin with a 'TT_' prefix. */ |
- | |
63 | /* */ |
- | |
64 | /*******************************************************************/ |
- | |
65 | - | ||
66 | typedef int TT_Bool; |
- | |
67 | - | ||
68 | typedef signed long TT_Fixed; /* signed fixed 16.16 float */ |
- | |
Line 69... | Line 50... | ||
69 | 50 | /* */ |
|
70 | typedef signed short TT_FWord; /* distance in FUnits */ |
51 | /* |
71 | typedef unsigned short TT_UFWord; /* unsigned distance */ |
52 | /* How client applications should allocate FreeType data structures. */ |
72 | 53 | /* */ |
|
73 | typedef char TT_String; |
- | |
74 | typedef signed char TT_Char; |
- | |
75 | typedef unsigned char TT_Byte; |
54 | /* |
76 | typedef signed short TT_Short; |
55 | /* FreeType assumes that structures allocated by the user and passed */ |
77 | typedef unsigned short TT_UShort; |
56 | /* as arguments are zeroed out except for the actual data. In other */ |
78 | typedef int TT_Int; |
- | |
Line 79... | Line -... | ||
79 | typedef unsigned int TT_UInt; |
- | |
80 | typedef signed long TT_Long; |
- | |
Line -... | Line 57... | ||
- | 57 | /* words, it is recommended to use `calloc' (or variants of it) */ |
|
- | 58 | /* instead of `malloc' for allocation. */ |
|
81 | typedef unsigned long TT_ULong; |
59 | /* */ |
- | 60 | /*************************************************************************/ |
|
- | 61 | ||
- | 62 | ||
- | 63 | ||
- | 64 | /*************************************************************************/ |
|
- | 65 | /*************************************************************************/ |
|
- | 66 | /* */ |
|
- | 67 | /* B A S I C T Y P E S */ |
|
- | 68 | /* */ |
|
- | 69 | /*************************************************************************/ |
|
- | 70 | /*************************************************************************/ |
|
- | 71 | ||
- | 72 | ||
- | 73 | /*************************************************************************/ |
|
- | 74 | /* */ |
|
- | 75 | /* |
|
- | 76 | /* base_interface */ |
|
- | 77 | /* */ |
|
- | 78 | /* |
|
- | 79 | /* Base Interface */ |
|
- | 80 | /* */ |
|
- | 81 | /* |
|
- | 82 | /* The FreeType~2 base font interface. */ |
|
- | 83 | /* */ |
|
- | 84 | /* |
|
- | 85 | /* This section describes the public high-level API of FreeType~2. */ |
|
- | 86 | /* */ |
|
- | 87 | /* |
|
- | 88 | /* FT_Library */ |
|
- | 89 | /* FT_Face */ |
|
- | 90 | /* FT_Size */ |
|
- | 91 | /* FT_GlyphSlot */ |
|
- | 92 | /* FT_CharMap */ |
|
- | 93 | /* FT_Encoding */ |
|
- | 94 | /* */ |
|
- | 95 | /* FT_FaceRec */ |
|
- | 96 | /* */ |
|
- | 97 | /* FT_FACE_FLAG_SCALABLE */ |
|
- | 98 | /* FT_FACE_FLAG_FIXED_SIZES */ |
|
- | 99 | /* FT_FACE_FLAG_FIXED_WIDTH */ |
|
- | 100 | /* FT_FACE_FLAG_HORIZONTAL */ |
|
- | 101 | /* FT_FACE_FLAG_VERTICAL */ |
|
- | 102 | /* FT_FACE_FLAG_SFNT */ |
|
82 | 103 | /* FT_FACE_FLAG_KERNING */ |
|
- | 104 | /* FT_FACE_FLAG_MULTIPLE_MASTERS */ |
|
83 | typedef signed short TT_F2Dot14; /* Signed fixed float 2.14 used for */ |
105 | /* FT_FACE_FLAG_GLYPH_NAMES */ |
- | 106 | /* FT_FACE_FLAG_EXTERNAL_STREAM */ |
|
- | 107 | /* FT_FACE_FLAG_FAST_GLYPHS */ |
|
84 | /* unit vectors, with layout */ |
108 | /* FT_FACE_FLAG_HINTER */ |
- | 109 | /* */ |
|
- | 110 | /* FT_STYLE_FLAG_BOLD */ |
|
- | 111 | /* FT_STYLE_FLAG_ITALIC */ |
|
- | 112 | /* */ |
|
- | 113 | /* FT_SizeRec */ |
|
- | 114 | /* FT_Size_Metrics */ |
|
- | 115 | /* */ |
|
- | 116 | /* FT_GlyphSlotRec */ |
|
85 | /* */ |
117 | /* FT_Glyph_Metrics */ |
- | 118 | /* FT_SubGlyph */ |
|
- | 119 | /* */ |
|
- | 120 | /* FT_Bitmap_Size */ |
|
- | 121 | /* */ |
|
- | 122 | /* FT_Init_FreeType */ |
|
- | 123 | /* FT_Done_FreeType */ |
|
- | 124 | /* */ |
|
- | 125 | /* FT_New_Face */ |
|
- | 126 | /* FT_Done_Face */ |
|
- | 127 | /* FT_New_Memory_Face */ |
|
- | 128 | /* FT_Open_Face */ |
|
86 | /* s : 1 -- sign bit */ |
129 | /* FT_Open_Args */ |
- | 130 | /* FT_Parameter */ |
|
- | 131 | /* FT_Attach_File */ |
|
- | 132 | /* FT_Attach_Stream */ |
|
- | 133 | /* */ |
|
- | 134 | /* FT_Set_Char_Size */ |
|
87 | /* m : 1 -- integer bit */ |
135 | /* FT_Set_Pixel_Sizes */ |
- | 136 | /* FT_Request_Size */ |
|
- | 137 | /* FT_Select_Size */ |
|
- | 138 | /* FT_Size_Request_Type */ |
|
- | 139 | /* FT_Size_Request */ |
|
- | 140 | /* FT_Set_Transform */ |
|
- | 141 | /* FT_Load_Glyph */ |
|
- | 142 | /* FT_Get_Char_Index */ |
|
- | 143 | /* FT_Get_Name_Index */ |
|
88 | /* f : 14 -- unsigned fractional */ |
144 | /* FT_Load_Char */ |
- | 145 | /* */ |
|
- | 146 | /* FT_OPEN_MEMORY */ |
|
- | 147 | /* FT_OPEN_STREAM */ |
|
- | 148 | /* FT_OPEN_PATHNAME */ |
|
- | 149 | /* FT_OPEN_DRIVER */ |
|
- | 150 | /* FT_OPEN_PARAMS */ |
|
89 | /* */ |
151 | /* */ |
- | 152 | /* FT_LOAD_DEFAULT */ |
|
- | 153 | /* FT_LOAD_RENDER */ |
|
- | 154 | /* FT_LOAD_MONOCHROME */ |
|
- | 155 | /* FT_LOAD_LINEAR_DESIGN */ |
|
- | 156 | /* FT_LOAD_NO_SCALE */ |
|
- | 157 | /* FT_LOAD_NO_HINTING */ |
|
- | 158 | /* FT_LOAD_NO_BITMAP */ |
|
- | 159 | /* FT_LOAD_CROP_BITMAP */ |
|
- | 160 | /* */ |
|
- | 161 | /* FT_LOAD_VERTICAL_LAYOUT */ |
|
- | 162 | /* FT_LOAD_IGNORE_TRANSFORM */ |
|
- | 163 | /* FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH */ |
|
- | 164 | /* FT_LOAD_FORCE_AUTOHINT */ |
|
- | 165 | /* FT_LOAD_NO_RECURSE */ |
|
- | 166 | /* FT_LOAD_PEDANTIC */ |
|
- | 167 | /* */ |
|
- | 168 | /* FT_LOAD_TARGET_NORMAL */ |
|
- | 169 | /* FT_LOAD_TARGET_LIGHT */ |
|
- | 170 | /* FT_LOAD_TARGET_MONO */ |
|
- | 171 | /* FT_LOAD_TARGET_LCD */ |
|
- | 172 | /* FT_LOAD_TARGET_LCD_V */ |
|
- | 173 | /* */ |
|
- | 174 | /* FT_Render_Glyph */ |
|
- | 175 | /* FT_Render_Mode */ |
|
- | 176 | /* FT_Get_Kerning */ |
|
- | 177 | /* FT_Kerning_Mode */ |
|
- | 178 | /* FT_Get_Track_Kerning */ |
|
- | 179 | /* FT_Get_Glyph_Name */ |
|
- | 180 | /* FT_Get_Postscript_Name */ |
|
Line -... | Line 181... | ||
- | 181 | /* */ |
|
- | 182 | /* FT_CharMapRec */ |
|
- | 183 | /* FT_Select_Charmap */ |
|
- | 184 | /* FT_Set_Charmap */ |
|
- | 185 | /* FT_Get_Charmap_Index */ |
|
- | 186 | /* */ |
|
90 | /* `s:m' is the 2-bit signed int */ |
187 | /* FT_FSTYPE_INSTALLABLE_EMBEDDING */ |
- | 188 | /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING */ |
|
- | 189 | /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING */ |
|
- | 190 | /* FT_FSTYPE_EDITABLE_EMBEDDING */ |
|
- | 191 | /* FT_FSTYPE_NO_SUBSETTING */ |
|
- | 192 | /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY */ |
|
- | 193 | /* */ |
|
- | 194 | /* FT_Get_FSType_Flags */ |
|
- | 195 | /* */ |
|
- | 196 | /*************************************************************************/ |
|
- | 197 | ||
- | 198 | ||
- | 199 | /*************************************************************************/ |
|
- | 200 | /* */ |
|
- | 201 | /* |
|
- | 202 | /* FT_Glyph_Metrics */ |
|
- | 203 | /* */ |
|
- | 204 | /* |
|
- | 205 | /* A structure used to model the metrics of a single glyph. The */ |
|
- | 206 | /* values are expressed in 26.6 fractional pixel format; if the flag */ |
|
- | 207 | /* @FT_LOAD_NO_SCALE has been used while loading the glyph, values */ |
|
- | 208 | /* are expressed in font units instead. */ |
|
- | 209 | /* */ |
|
- | 210 | /* |
|
- | 211 | /* width :: */ |
|
- | 212 | /* The glyph's width. */ |
|
- | 213 | /* */ |
|
- | 214 | /* height :: */ |
|
- | 215 | /* The glyph's height. */ |
|
- | 216 | /* */ |
|
- | 217 | /* horiBearingX :: */ |
|
- | 218 | /* Left side bearing for horizontal layout. */ |
|
- | 219 | /* */ |
|
- | 220 | /* horiBearingY :: */ |
|
- | 221 | /* Top side bearing for horizontal layout. */ |
|
91 | /* value to which the positive */ |
222 | /* */ |
92 | /* fractional part should be added. */ |
223 | /* horiAdvance :: */ |
93 | 224 | /* Advance width for horizontal layout. */ |
|
94 | typedef signed long TT_F26Dot6; /* 26.6 fixed float, used for */ |
- | |
95 | /* glyph points pixel coordinates. */ |
- | |
96 | - | ||
Line -... | Line 225... | ||
- | 225 | /* */ |
|
- | 226 | /* vertBearingX :: */ |
|
- | 227 | /* Left side bearing for vertical layout. */ |
|
Line 97... | Line 228... | ||
97 | typedef signed long TT_Pos; /* Point position, expressed either */ |
228 | /* */ |
98 | /* in fractional pixels or notional */ |
- | |
99 | /* units, depending on context. */ |
229 | /* vertBearingY :: */ |
100 | /* For example, glyph coordinates */ |
230 | /* Top side bearing for vertical layout. */ |
101 | /* returned by TT_Load_Glyph() are */ |
- | |
Line 102... | Line 231... | ||
102 | /* expressed in font units if */ |
231 | /* */ |
Line 103... | Line -... | ||
103 | /* scaling wasn't requested, and */ |
- | |
104 | /* in 26.6 fractional pixels if it */ |
232 | /* vertAdvance :: */ |
105 | /* was. */ |
233 | /* Advance height for vertical layout. */ |
106 | 234 | /* */ |
|
107 | 235 | /* |
|
108 | struct TT_UnitVector_ /* guess what... */ |
236 | /* If not disabled with @FT_LOAD_NO_HINTING, the values represent */ |
- | 237 | /* dimensions of the hinted glyph (in case hinting is applicable). */ |
|
- | 238 | /* */ |
|
- | 239 | typedef struct FT_Glyph_Metrics_ |
|
- | 240 | { |
|
- | 241 | FT_Pos width; |
|
- | 242 | FT_Pos height; |
|
109 | { |
- | |
- | 243 | ||
- | 244 | FT_Pos horiBearingX; |
|
- | 245 | FT_Pos horiBearingY; |
|
- | 246 | FT_Pos horiAdvance; |
|
- | 247 | ||
- | 248 | FT_Pos vertBearingX; |
|
- | 249 | FT_Pos vertBearingY; |
|
- | 250 | FT_Pos vertAdvance; |
|
- | 251 | ||
- | 252 | } FT_Glyph_Metrics; |
|
- | 253 | ||
- | 254 | ||
- | 255 | /*************************************************************************/ |
|
- | 256 | /* */ |
|
- | 257 | /* |
|
- | 258 | /* FT_Bitmap_Size */ |
|
- | 259 | /* */ |
|
- | 260 | /* |
|
- | 261 | /* This structure models the metrics of a bitmap strike (i.e., a set */ |
|
- | 262 | /* of glyphs for a given point size and resolution) in a bitmap font. */ |
|
- | 263 | /* It is used for the `available_sizes' field of @FT_Face. */ |
|
- | 264 | /* */ |
|
- | 265 | /* |
|
- | 266 | /* height :: The vertical distance, in pixels, between two */ |
|
- | 267 | /* consecutive baselines. It is always positive. */ |
|
- | 268 | /* */ |
|
- | 269 | /* width :: The average width, in pixels, of all glyphs in the */ |
|
110 | TT_F2Dot14 x; |
270 | /* strike. */ |
111 | TT_F2Dot14 y; |
271 | /* */ |
112 | }; |
272 | /* size :: The nominal size of the strike in 26.6 fractional */ |
113 | 273 | /* points. This field is not very useful. */ |
|
114 | typedef struct TT_UnitVector_ TT_UnitVector; |
- | |
Line 115... | Line 274... | ||
115 | 274 | /* */ |
|
Line -... | Line 275... | ||
- | 275 | /* x_ppem :: The horizontal ppem (nominal width) in 26.6 fractional */ |
|
- | 276 | /* pixels. */ |
|
Line 116... | Line 277... | ||
116 | 277 | /* */ |
|
Line 117... | Line -... | ||
117 | struct TT_Vector_ /* simple vector type */ |
- | |
118 | { |
- | |
119 | TT_F26Dot6 x; |
- | |
120 | TT_F26Dot6 y; |
- | |
121 | }; |
- | |
122 | - | ||
123 | typedef struct TT_Vector_ TT_Vector; |
- | |
124 | - | ||
125 | - | ||
126 | /* A simple 2x2 matrix used for transformations. */ |
- | |
127 | /* You should use 16.16 fixed floats. */ |
- | |
128 | /* */ |
- | |
129 | /* x' = xx*x + xy*y */ |
- | |
Line -... | Line 278... | ||
- | 278 | /* y_ppem :: The vertical ppem (nominal height) in 26.6 fractional */ |
|
- | 279 | /* pixels. */ |
|
130 | /* y' = yx*x + yy*y */ |
280 | /* */ |
- | 281 | /* |
|
131 | /* */ |
282 | /* Windows FNT: */ |
- | 283 | /* The nominal size given in a FNT font is not reliable. Thus when */ |
|
- | 284 | /* the driver finds it incorrect, it sets `size' to some calculated */ |
|
Line 132... | Line -... | ||
132 | - | ||
133 | struct TT_Matrix_ |
285 | /* values and sets `x_ppem' and `y_ppem' to the pixel width and */ |
134 | { |
286 | /* height given in the font, respectively. */ |
135 | TT_Fixed xx, xy; |
- | |
136 | TT_Fixed yx, yy; |
287 | /* */ |
137 | }; |
- | |
138 | 288 | /* TrueType embedded bitmaps: */ |
|
139 | typedef struct TT_Matrix_ TT_Matrix; |
289 | /* `size', `width', and `height' values are not contained in the */ |
140 | - | ||
141 | - | ||
142 | /* A structure used to describe the source glyph to the renderer. */ |
- | |
143 | 290 | /* bitmap strike itself. They are computed from the global font */ |
|
144 | struct TT_Outline_ |
291 | /* parameters. */ |
145 | { |
292 | /* */ |
146 | TT_Short n_contours; /* number of contours in glyph */ |
293 | typedef struct FT_Bitmap_Size_ |
147 | TT_UShort n_points; /* number of points in the glyph */ |
294 | { |
148 | - | ||
149 | TT_Vector* points; /* the outline's points */ |
295 | FT_Short height; |
150 | TT_Byte* flags; /* the points flags */ |
296 | FT_Short width; |
151 | TT_UShort* contours; /* the contour end points */ |
297 | |
152 | 298 | FT_Pos size; |
|
153 | /* The following flag indicates that the outline owns the arrays it */ |
- | |
- | 299 | ||
154 | /* refers to. Typically, this is true of outlines created from the */ |
300 | FT_Pos x_ppem; |
155 | /* TT_New_Outline() API, while it isn't for those returned by */ |
301 | FT_Pos y_ppem; |
- | 302 | ||
- | 303 | } FT_Bitmap_Size; |
|
156 | /* TT_Get_Glyph_Outline(). */ |
304 | |
157 | - | ||
158 | TT_Bool owner; /* The outline owns the coordinates, */ |
- | |
159 | /* flags and contours array it uses. */ |
305 | |
Line -... | Line 306... | ||
- | 306 | /*************************************************************************/ |
|
- | 307 | /*************************************************************************/ |
|
- | 308 | /* */ |
|
- | 309 | /* O B J E C T C L A S S E S */ |
|
- | 310 | /* */ |
|
- | 311 | /*************************************************************************/ |
|
160 | 312 | /*************************************************************************/ |
|
- | 313 | ||
- | 314 | /*************************************************************************/ |
|
- | 315 | /* */ |
|
- | 316 | /* |
|
Line 161... | Line -... | ||
161 | /* The following flags are set automatically by */ |
- | |
162 | /* TT_Get_Glyph_Outline(). Their meaning is the following: */ |
- | |
163 | /* */ |
- | |
164 | /* high_precision If true, the scan-line converter will use a */ |
- | |
165 | /* higher precision to render bitmaps (i.e., a */ |
- | |
166 | /* 1/1024 pixel precision). This is important for */ |
- | |
167 | /* small ppem sizes. */ |
- | |
Line -... | Line 317... | ||
- | 317 | /* FT_Library */ |
|
- | 318 | /* */ |
|
- | 319 | /* |
|
- | 320 | /* A handle to a FreeType library instance. Each `library' is */ |
|
- | 321 | /* completely independent from the others; it is the `root' of a set */ |
|
- | 322 | /* of objects like fonts, faces, sizes, etc. */ |
|
- | 323 | /* */ |
|
- | 324 | /* It also embeds a memory manager (see @FT_Memory), as well as a */ |
|
- | 325 | /* scan-line converter object (see @FT_Raster). */ |
|
168 | /* */ |
326 | /* */ |
Line 169... | Line 327... | ||
169 | /* second_pass If true, the scan-line converter performs a */ |
327 | /* For multi-threading applications each thread should have its own */ |
170 | /* second sweep phase dedicated to find vertical */ |
328 | /* FT_Library object. */ |
171 | /* drop-outs. If false, only horizontal drop-outs */ |
329 | /* */ |
172 | /* will be checked during the first vertical */ |
330 | /* |
173 | /* sweep (yes, this is a bit confusing but it is */ |
331 | /* Library objects are normally created by @FT_Init_FreeType, and */ |
174 | /* really the way it should work). This is */ |
332 | /* destroyed with @FT_Done_FreeType. */ |
175 | /* important for small ppems too. */ |
333 | /* */ |
176 | /* */ |
334 | typedef struct FT_LibraryRec_ *FT_Library; |
177 | /* dropout_mode Specifies the TrueType drop-out mode to use for */ |
335 | |
178 | /* continuity checking. Valid values are 0 (no */ |
336 | |
179 | /* check), 1, 2, 4, and 5. */ |
337 | /*************************************************************************/ |
180 | /* */ |
338 | /* */ |
181 | /* Most of the engine's users will safely ignore these fields... */ |
- | |
Line 182... | Line -... | ||
182 | - | ||
183 | TT_Bool high_precision; /* high precision rendering */ |
- | |
184 | TT_Bool second_pass; /* two sweeps rendering */ |
- | |
Line -... | Line 339... | ||
- | 339 | /* |
|
- | 340 | /* FT_Module */ |
|
- | 341 | /* */ |
|
- | 342 | /* |
|
- | 343 | /* A handle to a given FreeType module object. Each module can be a */ |
|
- | 344 | /* font driver, a renderer, or anything else that provides services */ |
|
- | 345 | /* to the formers. */ |
|
- | 346 | /* */ |
|
- | 347 | typedef struct FT_ModuleRec_* FT_Module; |
|
- | 348 | ||
- | 349 | ||
- | 350 | /*************************************************************************/ |
|
- | 351 | /* */ |
|
- | 352 | /* |
|
185 | TT_Char dropout_mode; /* dropout mode */ |
353 | /* FT_Driver */ |
- | 354 | /* */ |
|
186 | }; |
355 | /* |
- | 356 | /* A handle to a given FreeType font driver object. Each font driver */ |
|
- | 357 | /* is a special module capable of creating faces from font files. */ |
|
- | 358 | /* */ |
|
- | 359 | typedef struct FT_DriverRec_* FT_Driver; |
|
- | 360 | ||
- | 361 | ||
Line 187... | Line -... | ||
187 | - | ||
188 | typedef struct TT_Outline_ TT_Outline; |
- | |
Line -... | Line 362... | ||
- | 362 | /*************************************************************************/ |
|
- | 363 | /* */ |
|
- | 364 | /* |
|
- | 365 | /* FT_Renderer */ |
|
- | 366 | /* */ |
|
- | 367 | /* |
|
- | 368 | /* A handle to a given FreeType renderer. A renderer is a special */ |
|
- | 369 | /* module in charge of converting a glyph image to a bitmap, when */ |
|
- | 370 | /* necessary. Each renderer supports a given glyph image format, and */ |
|
- | 371 | /* one or more target surface depths. */ |
|
- | 372 | /* */ |
|
- | 373 | typedef struct FT_RendererRec_* FT_Renderer; |
|
- | 374 | ||
- | 375 | ||
- | 376 | /*************************************************************************/ |
|
- | 377 | /* */ |
|
- | 378 | /* |
|
- | 379 | /* FT_Face */ |
|
- | 380 | /* */ |
|
- | 381 | /* |
|
- | 382 | /* A handle to a given typographic face object. A face object models */ |
|
- | 383 | /* a given typeface, in a given style. */ |
|
- | 384 | /* */ |
|
- | 385 | /* |
|
- | 386 | /* Each face object also owns a single @FT_GlyphSlot object, as well */ |
|
- | 387 | /* as one or more @FT_Size objects. */ |
|
- | 388 | /* */ |
|
189 | 389 | /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */ |
|
Line 190... | Line -... | ||
190 | - | ||
191 | /* A structure used to describe a simple bounding box. */ |
390 | /* a given filepathname or a custom input stream. */ |
192 | 391 | /* */ |
|
- | 392 | /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */ |
|
- | 393 | /* */ |
|
- | 394 | /* |
|
- | 395 | /* See @FT_FaceRec for the publicly accessible fields of a given face */ |
|
- | 396 | /* object. */ |
|
193 | struct TT_BBox_ |
397 | /* */ |
- | 398 | typedef struct FT_FaceRec_* FT_Face; |
|
- | 399 | ||
- | 400 | ||
- | 401 | /*************************************************************************/ |
|
194 | { |
402 | /* */ |
195 | TT_Pos xMin; |
403 | /* |
196 | TT_Pos yMin; |
- | |
- | 404 | /* FT_Size */ |
|
- | 405 | /* */ |
|
197 | TT_Pos xMax; |
406 | /* |
198 | TT_Pos yMax; |
- | |
199 | }; |
407 | /* A handle to an object used to model a face scaled to a given */ |
- | 408 | /* character size. */ |
|
Line 200... | Line -... | ||
200 | - | ||
201 | typedef struct TT_BBox_ TT_BBox; |
- | |
Line -... | Line 409... | ||
- | 409 | /* */ |
|
- | 410 | /* |
|
- | 411 | /* Each @FT_Face has an _active_ @FT_Size object that is used by */ |
|
- | 412 | /* functions like @FT_Load_Glyph to determine the scaling */ |
|
- | 413 | /* transformation which is used to load and hint glyphs and metrics. */ |
|
- | 414 | /* */ |
|
202 | 415 | /* You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, */ |
|
- | 416 | /* @FT_Request_Size or even @FT_Select_Size to change the content */ |
|
- | 417 | /* (i.e., the scaling values) of the active @FT_Size. */ |
|
- | 418 | /* */ |
|
- | 419 | /* You can use @FT_New_Size to create additional size objects for a */ |
|
203 | 420 | /* given @FT_Face, but they won't be used by other functions until */ |
|
- | 421 | /* you activate it through @FT_Activate_Size. Only one size can be */ |
|
- | 422 | /* activated at any given time per face. */ |
|
- | 423 | /* */ |
|
- | 424 | /* |
|
- | 425 | /* See @FT_SizeRec for the publicly accessible fields of a given size */ |
|
- | 426 | /* object. */ |
|
- | 427 | /* */ |
|
- | 428 | typedef struct FT_SizeRec_* FT_Size; |
|
- | 429 | ||
- | 430 | ||
- | 431 | /*************************************************************************/ |
|
- | 432 | /* */ |
|
- | 433 | /* |
|
- | 434 | /* FT_GlyphSlot */ |
|
- | 435 | /* */ |
|
- | 436 | /* |
|
- | 437 | /* A handle to a given `glyph slot'. A slot is a container where it */ |
|
- | 438 | /* is possible to load any of the glyphs contained in its parent */ |
|
Line 204... | Line -... | ||
204 | /* A structure used to return glyph metrics. */ |
- | |
205 | /* */ |
- | |
Line 206... | Line -... | ||
206 | /* The `bearingX' isn't called `left-side bearing' anymore because */ |
- | |
207 | /* it has different meanings depending on the glyph's orientation. */ |
- | |
208 | /* */ |
439 | /* face. */ |
209 | /* The same is true for `bearingY', which is the top-side bearing */ |
440 | /* */ |
- | 441 | /* In other words, each time you call @FT_Load_Glyph or */ |
|
- | 442 | /* @FT_Load_Char, the slot's content is erased by the new glyph data, */ |
|
- | 443 | /* i.e., the glyph's metrics, its image (bitmap or outline), and */ |
|
- | 444 | /* other control information. */ |
|
- | 445 | /* */ |
|
- | 446 | /* |
|
- | 447 | /* See @FT_GlyphSlotRec for the publicly accessible glyph fields. */ |
|
- | 448 | /* */ |
|
210 | /* defined by the TT_Spec, i.e., the distance from the baseline to */ |
449 | typedef struct FT_GlyphSlotRec_* FT_GlyphSlot; |
211 | /* the top of the glyph's bbox. According to our current convention, */ |
450 | |
- | 451 | ||
- | 452 | /*************************************************************************/ |
|
- | 453 | /* */ |
|
- | 454 | /* |
|
- | 455 | /* FT_CharMap */ |
|
- | 456 | /* */ |
|
212 | /* this is always the same as `bbox.yMax' but we make it appear for */ |
457 | /* |
213 | /* consistency in its proper field. */ |
458 | /* A handle to a given character map. A charmap is used to translate */ |
- | 459 | /* character codes in a given encoding into glyph indexes for its */ |
|
- | 460 | /* parent's face. Some font formats may provide several charmaps per */ |
|
- | 461 | /* font. */ |
|
- | 462 | /* */ |
|
- | 463 | /* Each face object owns zero or more charmaps, but only one of them */ |
|
- | 464 | /* can be `active' and used by @FT_Get_Char_Index or @FT_Load_Char. */ |
|
- | 465 | /* */ |
|
Line 214... | Line -... | ||
214 | /* */ |
- | |
215 | /* The `advance' field is the advance width for horizontal layout, */ |
466 | /* The list of available charmaps in a face is available through the */ |
Line 216... | Line -... | ||
216 | /* and advance height for vertical layouts. */ |
- | |
217 | - | ||
218 | struct TT_Glyph_Metrics_ |
- | |
Line -... | Line 467... | ||
- | 467 | /* `face->num_charmaps' and `face->charmaps' fields of @FT_FaceRec. */ |
|
- | 468 | /* */ |
|
- | 469 | /* The currently active charmap is available as `face->charmap'. */ |
|
- | 470 | /* You should call @FT_Set_Charmap to change it. */ |
|
- | 471 | /* */ |
|
- | 472 | /* |
|
- | 473 | /* When a new face is created (either through @FT_New_Face or */ |
|
- | 474 | /* @FT_Open_Face), the library looks for a Unicode charmap within */ |
|
- | 475 | /* the list and automatically activates it. */ |
|
- | 476 | /* */ |
|
- | 477 | /* |
|
- | 478 | /* See @FT_CharMapRec for the publicly accessible fields of a given */ |
|
- | 479 | /* character map. */ |
|
- | 480 | /* */ |
|
- | 481 | typedef struct FT_CharMapRec_* FT_CharMap; |
|
- | 482 | ||
- | 483 | ||
- | 484 | /*************************************************************************/ |
|
- | 485 | /* */ |
|
- | 486 | /* |
|
- | 487 | /* FT_ENC_TAG */ |
|
- | 488 | /* */ |
|
- | 489 | /* |
|
- | 490 | /* This macro converts four-letter tags into an unsigned long. It is */ |
|
- | 491 | /* used to define `encoding' identifiers (see @FT_Encoding). */ |
|
- | 492 | /* */ |
|
- | 493 | /* |
|
- | 494 | /* Since many 16-bit compilers don't like 32-bit enumerations, you */ |
|
- | 495 | /* should redefine this macro in case of problems to something like */ |
|
- | 496 | /* this: */ |
|
- | 497 | /* */ |
|
- | 498 | /* { */ |
|
- | 499 | /* #define FT_ENC_TAG( value, a, b, c, d ) value */ |
|
- | 500 | /* } */ |
|
- | 501 | /* */ |
|
- | 502 | /* to get a simple enumeration without assigning special numbers. */ |
|
- | 503 | /* */ |
|
- | 504 | ||
- | 505 | #ifndef FT_ENC_TAG |
|
- | 506 | #define FT_ENC_TAG( value, a, b, c, d ) \ |
|
- | 507 | value = ( ( (FT_UInt32)(a) << 24 ) | \ |
|
- | 508 | ( (FT_UInt32)(b) << 16 ) | \ |
|
- | 509 | ( (FT_UInt32)(c) << 8 ) | \ |
|
- | 510 | (FT_UInt32)(d) ) |
|
- | 511 | ||
- | 512 | #endif /* FT_ENC_TAG */ |
|
- | 513 | ||
- | 514 | ||
- | 515 | /*************************************************************************/ |
|
- | 516 | /* */ |
|
- | 517 | /* |
|
- | 518 | /* FT_Encoding */ |
|
- | 519 | /* */ |
|
- | 520 | /* |
|
- | 521 | /* An enumeration used to specify character sets supported by */ |
|
- | 522 | /* charmaps. Used in the @FT_Select_Charmap API function. */ |
|
- | 523 | /* */ |
|
- | 524 | /* |
|
- | 525 | /* Despite the name, this enumeration lists specific character */ |
|
- | 526 | /* repertories (i.e., charsets), and not text encoding methods (e.g., */ |
|
- | 527 | /* UTF-8, UTF-16, etc.). */ |
|
- | 528 | /* */ |
|
- | 529 | /* Other encodings might be defined in the future. */ |
|
- | 530 | /* */ |
|
- | 531 | /* |
|
- | 532 | /* FT_ENCODING_NONE :: */ |
|
- | 533 | /* The encoding value~0 is reserved. */ |
|
- | 534 | /* */ |
|
- | 535 | /* FT_ENCODING_UNICODE :: */ |
|
- | 536 | /* Corresponds to the Unicode character set. This value covers */ |
|
- | 537 | /* all versions of the Unicode repertoire, including ASCII and */ |
|
- | 538 | /* Latin-1. Most fonts include a Unicode charmap, but not all */ |
|
- | 539 | /* of them. */ |
|
- | 540 | /* */ |
|
- | 541 | /* For example, if you want to access Unicode value U+1F028 (and */ |
|
- | 542 | /* the font contains it), use value 0x1F028 as the input value for */ |
|
- | 543 | /* @FT_Get_Char_Index. */ |
|
- | 544 | /* */ |
|
- | 545 | /* FT_ENCODING_MS_SYMBOL :: */ |
|
- | 546 | /* Corresponds to the Microsoft Symbol encoding, used to encode */ |
|
- | 547 | /* mathematical symbols in the 32..255 character code range. For */ |
|
- | 548 | /* more information, see `http://www.ceviz.net/symbol.htm'. */ |
|
- | 549 | /* */ |
|
- | 550 | /* FT_ENCODING_SJIS :: */ |
|
- | 551 | /* Corresponds to Japanese SJIS encoding. More info at */ |
|
- | 552 | /* at `http://langsupport.japanreference.com/encoding.shtml'. */ |
|
- | 553 | /* See note on multi-byte encodings below. */ |
|
- | 554 | /* */ |
|
- | 555 | /* FT_ENCODING_GB2312 :: */ |
|
- | 556 | /* Corresponds to an encoding system for Simplified Chinese as used */ |
|
- | 557 | /* used in mainland China. */ |
|
- | 558 | /* */ |
|
- | 559 | /* FT_ENCODING_BIG5 :: */ |
|
- | 560 | /* Corresponds to an encoding system for Traditional Chinese as */ |
|
- | 561 | /* used in Taiwan and Hong Kong. */ |
|
- | 562 | /* */ |
|
- | 563 | /* FT_ENCODING_WANSUNG :: */ |
|
- | 564 | /* Corresponds to the Korean encoding system known as Wansung. */ |
|
- | 565 | /* For more information see */ |
|
- | 566 | /* `http://www.microsoft.com/typography/unicode/949.txt'. */ |
|
- | 567 | /* */ |
|
- | 568 | /* FT_ENCODING_JOHAB :: */ |
|
219 | { |
569 | /* The Korean standard character set (KS~C 5601-1992), which */ |
- | 570 | /* corresponds to MS Windows code page 1361. This character set */ |
|
- | 571 | /* includes all possible Hangeul character combinations. */ |
|
- | 572 | /* */ |
|
- | 573 | /* FT_ENCODING_ADOBE_LATIN_1 :: */ |
|
- | 574 | /* Corresponds to a Latin-1 encoding as defined in a Type~1 */ |
|
- | 575 | /* PostScript font. It is limited to 256 character codes. */ |
|
- | 576 | /* */ |
|
- | 577 | /* FT_ENCODING_ADOBE_STANDARD :: */ |
|
- | 578 | /* Corresponds to the Adobe Standard encoding, as found in Type~1, */ |
|
- | 579 | /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ |
|
- | 580 | /* codes. */ |
|
- | 581 | /* */ |
|
- | 582 | /* FT_ENCODING_ADOBE_EXPERT :: */ |
|
- | 583 | /* Corresponds to the Adobe Expert encoding, as found in Type~1, */ |
|
- | 584 | /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ |
|
- | 585 | /* codes. */ |
|
- | 586 | /* */ |
|
- | 587 | /* FT_ENCODING_ADOBE_CUSTOM :: */ |
|
- | 588 | /* Corresponds to a custom encoding, as found in Type~1, CFF, and */ |
|
- | 589 | /* OpenType/CFF fonts. It is limited to 256 character codes. */ |
|
- | 590 | /* */ |
|
- | 591 | /* FT_ENCODING_APPLE_ROMAN :: */ |
|
- | 592 | /* Corresponds to the 8-bit Apple roman encoding. Many TrueType */ |
|
- | 593 | /* and OpenType fonts contain a charmap for this encoding, since */ |
|
- | 594 | /* older versions of Mac OS are able to use it. */ |
|
- | 595 | /* */ |
|
- | 596 | /* FT_ENCODING_OLD_LATIN_2 :: */ |
|
- | 597 | /* This value is deprecated and was never used nor reported by */ |
|
- | 598 | /* FreeType. Don't use or test for it. */ |
|
- | 599 | /* */ |
|
- | 600 | /* FT_ENCODING_MS_SJIS :: */ |
|
- | 601 | /* Same as FT_ENCODING_SJIS. Deprecated. */ |
|
- | 602 | /* */ |
|
- | 603 | /* FT_ENCODING_MS_GB2312 :: */ |
|
- | 604 | /* Same as FT_ENCODING_GB2312. Deprecated. */ |
|
- | 605 | /* */ |
|
- | 606 | /* FT_ENCODING_MS_BIG5 :: */ |
|
- | 607 | /* Same as FT_ENCODING_BIG5. Deprecated. */ |
|
- | 608 | /* */ |
|
Line -... | Line 609... | ||
- | 609 | /* FT_ENCODING_MS_WANSUNG :: */ |
|
- | 610 | /* Same as FT_ENCODING_WANSUNG. Deprecated. */ |
|
Line 220... | Line 611... | ||
220 | TT_BBox bbox; /* glyph bounding box */ |
611 | /* */ |
- | 612 | /* FT_ENCODING_MS_JOHAB :: */ |
|
- | 613 | /* Same as FT_ENCODING_JOHAB. Deprecated. */ |
|
- | 614 | /* */ |
|
- | 615 | /* |
|
Line 221... | Line 616... | ||
221 | 616 | /* By default, FreeType automatically synthesizes a Unicode charmap */ |
|
222 | TT_Pos bearingX; /* left-side bearing */ |
- | |
- | 617 | /* for PostScript fonts, using their glyph names dictionaries. */ |
|
223 | TT_Pos bearingY; /* top-side bearing, per se the TT spec */ |
618 | /* However, it also reports the encodings defined explicitly in the */ |
- | 619 | /* font file, for the cases when they are needed, with the Adobe */ |
|
- | 620 | /* values as well. */ |
|
- | 621 | /* */ |
|
Line -... | Line 622... | ||
- | 622 | /* FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap */ |
|
224 | 623 | /* is neither Unicode nor ISO-8859-1 (otherwise it is set to */ |
|
225 | TT_Pos advance; /* advance width (or height) */ |
624 | /* FT_ENCODING_UNICODE). Use @FT_Get_BDF_Charset_ID to find out */ |
- | 625 | /* which encoding is really present. If, for example, the */ |
|
Line 226... | Line -... | ||
226 | }; |
- | |
227 | 626 | /* `cs_registry' field is `KOI8' and the `cs_encoding' field is `R', */ |
|
Line 228... | Line -... | ||
228 | typedef struct TT_Glyph_Metrics_ TT_Glyph_Metrics; |
- | |
229 | 627 | /* the font is encoded in KOI8-R. */ |
|
230 | - | ||
Line 231... | Line 628... | ||
231 | /* A structure used to return horizontal _and_ vertical glyph */ |
628 | /* */ |
Line -... | Line 629... | ||
- | 629 | /* FT_ENCODING_NONE is always set (with a single exception) by the */ |
|
- | 630 | /* winfonts driver. Use @FT_Get_WinFNT_Header and examine the */ |
|
- | 631 | /* `charset' field of the @FT_WinFNT_HeaderRec structure to find out */ |
|
232 | /* metrics. */ |
632 | /* which encoding is really present. For example, */ |
233 | /* */ |
633 | /* @FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for */ |
234 | /* A glyph can be used either in a horizontal or vertical layout. */ |
634 | /* Russian). */ |
235 | /* Its glyph metrics vary with orientation. The TT_Big_Glyph_Metrics */ |
635 | /* */ |
236 | /* structure is used to return _all_ metrics in one call. */ |
636 | /* FT_ENCODING_NONE is set if `platform_id' is @TT_PLATFORM_MACINTOSH */ |
237 | 637 | /* and `encoding_id' is not @TT_MAC_ID_ROMAN (otherwise it is set to */ |
|
- | 638 | /* FT_ENCODING_APPLE_ROMAN). */ |
|
- | 639 | /* */ |
|
238 | struct TT_Big_Glyph_Metrics_ |
640 | /* If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function */ |
239 | { |
641 | /* @FT_Get_CMap_Language_ID to query the Mac language ID which may */ |
240 | TT_BBox bbox; /* glyph bounding box */ |
642 | /* be needed to be able to distinguish Apple encoding variants. See */ |
- | 643 | /* */ |
|
- | 644 | /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/README.TXT */ |
|
- | 645 | /* */ |
|
- | 646 | /* to get an idea how to do that. Basically, if the language ID */ |
|
- | 647 | /* is~0, don't use it, otherwise subtract 1 from the language ID. */ |
|
Line -... | Line 648... | ||
- | 648 | /* Then examine `encoding_id'. If, for example, `encoding_id' is */ |
|
241 | 649 | /* @TT_MAC_ID_ROMAN and the language ID (minus~1) is */ |
|
242 | TT_Pos horiBearingX; /* left side bearing in horizontal layouts */ |
650 | /* `TT_MAC_LANGID_GREEK', it is the Greek encoding, not Roman. */ |
243 | TT_Pos horiBearingY; /* top side bearing in horizontal layouts */ |
651 | /* @TT_MAC_ID_ARABIC with `TT_MAC_LANGID_FARSI' means the Farsi */ |
Line 244... | Line -... | ||
244 | - | ||
245 | TT_Pos vertBearingX; /* left side bearing in vertical layouts */ |
- | |
246 | TT_Pos vertBearingY; /* top side bearing in vertical layouts */ |
652 | /* variant the Arabic encoding. */ |
247 | 653 | /* */ |
|
248 | TT_Pos horiAdvance; /* advance width for horizontal layout */ |
654 | typedef enum FT_Encoding_ |
- | 655 | { |
|
249 | TT_Pos vertAdvance; /* advance height for vertical layout */ |
656 | FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ), |
250 | 657 | ||
251 | /* The following fields represent unhinted scaled metrics values. */ |
- | |
252 | /* They can be useful for applications needing to do some device */ |
- | |
253 | /* independent placement of glyphs. */ |
658 | FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ), |
254 | /* */ |
659 | FT_ENC_TAG( FT_ENCODING_UNICODE, 'u', 'n', 'i', 'c' ), |
255 | /* Applying these metrics to hinted glyphs will most surely ruin */ |
660 | |
- | 661 | FT_ENC_TAG( FT_ENCODING_SJIS, 's', 'j', 'i', 's' ), |
|
256 | /* the grid fitting performed by the bytecode interpreter. These */ |
662 | FT_ENC_TAG( FT_ENCODING_GB2312, 'g', 'b', ' ', ' ' ), |
- | 663 | FT_ENC_TAG( FT_ENCODING_BIG5, 'b', 'i', 'g', '5' ), |
|
257 | /* values are better used to compute accumulated positioning */ |
664 | FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ), |
258 | /* distances. */ |
665 | FT_ENC_TAG( FT_ENCODING_JOHAB, 'j', 'o', 'h', 'a' ), |
259 | 666 | ||
260 | TT_Pos linearHoriBearingX; /* linearly scaled horizontal lsb */ |
667 | /* for backwards compatibility */ |
261 | TT_Pos linearHoriAdvance; /* linearly scaled horizontal advance */ |
668 | FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS, |
262 | 669 | FT_ENCODING_MS_GB2312 = FT_ENCODING_GB2312, |
|
263 | TT_Pos linearVertBearingY; /* linearly scaled vertical tsb */ |
670 | FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5, |
- | 671 | FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG, |
|
- | 672 | FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB, |
|
264 | TT_Pos linearVertAdvance; /* linearly scaled vertical advance */ |
673 | |
265 | }; |
674 | FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ), |
266 | - | ||
267 | typedef struct TT_Big_Glyph_Metrics_ TT_Big_Glyph_Metrics; |
- | |
268 | - | ||
269 | - | ||
270 | /* A structure used to return instance metrics. */ |
- | |
271 | 675 | FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT, 'A', 'D', 'B', 'E' ), |
|
272 | struct TT_Instance_Metrics_ |
676 | FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM, 'A', 'D', 'B', 'C' ), |
- | 677 | FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1, 'l', 'a', 't', '1' ), |
|
- | 678 | ||
- | 679 | FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ), |
|
- | 680 | ||
- | 681 | FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' ) |
|
- | 682 | ||
- | 683 | } FT_Encoding; |
|
- | 684 | ||
- | 685 | ||
- | 686 | /*************************************************************************/ |
|
- | 687 | /* */ |
|
- | 688 | /* |
|
- | 689 | /* ft_encoding_xxx */ |
|
- | 690 | /* */ |
|
- | 691 | /* |
|
- | 692 | /* These constants are deprecated; use the corresponding @FT_Encoding */ |
|
- | 693 | /* values instead. */ |
|
- | 694 | /* */ |
|
- | 695 | #define ft_encoding_none FT_ENCODING_NONE |
|
- | 696 | #define ft_encoding_unicode FT_ENCODING_UNICODE |
|
273 | { |
697 | #define ft_encoding_symbol FT_ENCODING_MS_SYMBOL |
- | 698 | #define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1 |
|
- | 699 | #define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2 |
|
- | 700 | #define ft_encoding_sjis FT_ENCODING_SJIS |
|
- | 701 | #define ft_encoding_gb2312 FT_ENCODING_GB2312 |
|
- | 702 | #define ft_encoding_big5 FT_ENCODING_BIG5 |
|
- | 703 | #define ft_encoding_wansung FT_ENCODING_WANSUNG |
|
- | 704 | #define ft_encoding_johab FT_ENCODING_JOHAB |
|
- | 705 | ||
- | 706 | #define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD |
|
- | 707 | #define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT |
|
- | 708 | #define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM |
|
- | 709 | #define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN |
|
- | 710 | ||
- | 711 | ||
- | 712 | /*************************************************************************/ |
|
- | 713 | /* */ |
|
- | 714 | /* |
|
- | 715 | /* FT_CharMapRec */ |
|
- | 716 | /* */ |
|
- | 717 | /* |
|
- | 718 | /* The base charmap structure. */ |
|
274 | TT_F26Dot6 pointSize; /* char. size in points (1pt = 1/72 inch) */ |
719 | /* */ |
- | 720 | /* |
|
- | 721 | /* face :: A handle to the parent face object. */ |
|
- | 722 | /* */ |
|
- | 723 | /* encoding :: An @FT_Encoding tag identifying the charmap. Use */ |
|
- | 724 | /* this with @FT_Select_Charmap. */ |
|
- | 725 | /* */ |
|
- | 726 | /* platform_id :: An ID number describing the platform for the */ |
|
- | 727 | /* following encoding ID. This comes directly from */ |
|
- | 728 | /* the TrueType specification and should be emulated */ |
|
- | 729 | /* for other formats. */ |
|
- | 730 | /* */ |
|
- | 731 | /* encoding_id :: A platform specific encoding number. This also */ |
|
- | 732 | /* comes from the TrueType specification and should be */ |
|
- | 733 | /* emulated similarly. */ |
|
- | 734 | /* */ |
|
- | 735 | typedef struct FT_CharMapRec_ |
|
- | 736 | { |
|
- | 737 | FT_Face face; |
|
- | 738 | FT_Encoding encoding; |
|
- | 739 | FT_UShort platform_id; |
|
- | 740 | FT_UShort encoding_id; |
|
- | 741 | ||
- | 742 | } FT_CharMapRec; |
|
- | 743 | ||
- | 744 | ||
- | 745 | /*************************************************************************/ |
|
- | 746 | /*************************************************************************/ |
|
- | 747 | /* */ |
|
- | 748 | /* B A S E O B J E C T C L A S S E S */ |
|
- | 749 | /* */ |
|
- | 750 | /*************************************************************************/ |
|
- | 751 | /*************************************************************************/ |
|
- | 752 | ||
- | 753 | ||
- | 754 | /*************************************************************************/ |
|
- | 755 | /* */ |
|
- | 756 | /* |
|
- | 757 | /* FT_Face_Internal */ |
|
- | 758 | /* */ |
|
- | 759 | /* |
|
- | 760 | /* An opaque handle to an `FT_Face_InternalRec' structure, used to */ |
|
- | 761 | /* model private data of a given @FT_Face object. */ |
|
- | 762 | /* */ |
|
- | 763 | /* This structure might change between releases of FreeType~2 and is */ |
|
- | 764 | /* not generally available to client applications. */ |
|
- | 765 | /* */ |
|
- | 766 | typedef struct FT_Face_InternalRec_* FT_Face_Internal; |
|
- | 767 | ||
- | 768 | ||
- | 769 | /*************************************************************************/ |
|
- | 770 | /* */ |
|
- | 771 | /* |
|
- | 772 | /* FT_FaceRec */ |
|
- | 773 | /* */ |
|
- | 774 | /* |
|
275 | 775 | /* FreeType root face class structure. A face object models a */ |
|
- | 776 | /* typeface in a font file. */ |
|
- | 777 | /* */ |
|
- | 778 | /* |
|
- | 779 | /* num_faces :: The number of faces in the font file. Some */ |
|
276 | TT_UShort x_ppem; /* horizontal pixels per EM square */ |
780 | /* font formats can have multiple faces in */ |
- | 781 | /* a font file. */ |
|
- | 782 | /* */ |
|
- | 783 | /* face_index :: The index of the face in the font file. It */ |
|
- | 784 | /* is set to~0 if there is only one face in */ |
|
- | 785 | /* the font file. */ |
|
- | 786 | /* */ |
|
- | 787 | /* face_flags :: A set of bit flags that give important */ |
|
- | 788 | /* information about the face; see */ |
|
- | 789 | /* @FT_FACE_FLAG_XXX for the details. */ |
|
- | 790 | /* */ |
|
- | 791 | /* style_flags :: A set of bit flags indicating the style of */ |
|
- | 792 | /* the face; see @FT_STYLE_FLAG_XXX for the */ |
|
- | 793 | /* details. */ |
|
- | 794 | /* */ |
|
- | 795 | /* num_glyphs :: The number of glyphs in the face. If the */ |
|
- | 796 | /* face is scalable and has sbits (see */ |
|
- | 797 | /* `num_fixed_sizes'), it is set to the number */ |
|
- | 798 | /* of outline glyphs. */ |
|
- | 799 | /* */ |
|
- | 800 | /* For CID-keyed fonts, this value gives the */ |
|
- | 801 | /* highest CID used in the font. */ |
|
- | 802 | /* */ |
|
- | 803 | /* family_name :: The face's family name. This is an ASCII */ |
|
- | 804 | /* string, usually in English, which describes */ |
|
- | 805 | /* the typeface's family (like `Times New */ |
|
- | 806 | /* Roman', `Bodoni', `Garamond', etc). This */ |
|
- | 807 | /* is a least common denominator used to list */ |
|
- | 808 | /* fonts. Some formats (TrueType & OpenType) */ |
|
- | 809 | /* provide localized and Unicode versions of */ |
|
- | 810 | /* this string. Applications should use the */ |
|
- | 811 | /* format specific interface to access them. */ |
|
- | 812 | /* Can be NULL (e.g., in fonts embedded in a */ |
|
- | 813 | /* PDF file). */ |
|
- | 814 | /* */ |
|
- | 815 | /* style_name :: The face's style name. This is an ASCII */ |
|
- | 816 | /* string, usually in English, which describes */ |
|
- | 817 | /* the typeface's style (like `Italic', */ |
|
- | 818 | /* `Bold', `Condensed', etc). Not all font */ |
|
- | 819 | /* formats provide a style name, so this field */ |
|
- | 820 | /* is optional, and can be set to NULL. As */ |
|
- | 821 | /* for `family_name', some formats provide */ |
|
- | 822 | /* localized and Unicode versions of this */ |
|
- | 823 | /* string. Applications should use the format */ |
|
- | 824 | /* specific interface to access them. */ |
|
- | 825 | /* */ |
|
- | 826 | /* num_fixed_sizes :: The number of bitmap strikes in the face. */ |
|
- | 827 | /* Even if the face is scalable, there might */ |
|
- | 828 | /* still be bitmap strikes, which are called */ |
|
- | 829 | /* `sbits' in that case. */ |
|
- | 830 | /* */ |
|
- | 831 | /* available_sizes :: An array of @FT_Bitmap_Size for all bitmap */ |
|
- | 832 | /* strikes in the face. It is set to NULL if */ |
|
- | 833 | /* there is no bitmap strike. */ |
|
- | 834 | /* */ |
|
- | 835 | /* num_charmaps :: The number of charmaps in the face. */ |
|
- | 836 | /* */ |
|
- | 837 | /* charmaps :: An array of the charmaps of the face. */ |
|
- | 838 | /* */ |
|
- | 839 | /* generic :: A field reserved for client uses. See the */ |
|
- | 840 | /* @FT_Generic type description. */ |
|
- | 841 | /* */ |
|
- | 842 | /* bbox :: The font bounding box. Coordinates are */ |
|
- | 843 | /* expressed in font units (see */ |
|
- | 844 | /* `units_per_EM'). The box is large enough */ |
|
- | 845 | /* to contain any glyph from the font. Thus, */ |
|
- | 846 | /* `bbox.yMax' can be seen as the `maximal */ |
|
- | 847 | /* ascender', and `bbox.yMin' as the `minimal */ |
|
- | 848 | /* descender'. Only relevant for scalable */ |
|
- | 849 | /* formats. */ |
|
- | 850 | /* */ |
|
- | 851 | /* Note that the bounding box might be off by */ |
|
- | 852 | /* (at least) one pixel for hinted fonts. See */ |
|
- | 853 | /* @FT_Size_Metrics for further discussion. */ |
|
- | 854 | /* */ |
|
Line 277... | Line 855... | ||
277 | TT_UShort y_ppem; /* vertical pixels per EM square */ |
855 | /* units_per_EM :: The number of font units per EM square for */ |
278 | 856 | /* this face. This is typically 2048 for */ |
|
279 | TT_Fixed x_scale; /* 16.16 to convert from EM units to 26.6 pix */ |
- | |
Line 280... | Line 857... | ||
280 | TT_Fixed y_scale; /* 16.16 to convert from EM units to 26.6 pix */ |
857 | /* TrueType fonts, and 1000 for Type~1 fonts. */ |
Line -... | Line 858... | ||
- | 858 | /* Only relevant for scalable formats. */ |
|
- | 859 | /* */ |
|
- | 860 | /* ascender :: The typographic ascender of the face, */ |
|
- | 861 | /* expressed in font units. For font formats */ |
|
- | 862 | /* not having this information, it is set to */ |
|
- | 863 | /* `bbox.yMax'. Only relevant for scalable */ |
|
- | 864 | /* formats. */ |
|
- | 865 | /* */ |
|
- | 866 | /* descender :: The typographic descender of the face, */ |
|
- | 867 | /* expressed in font units. For font formats */ |
|
- | 868 | /* not having this information, it is set to */ |
|
- | 869 | /* `bbox.yMin'. Note that this field is */ |
|
- | 870 | /* usually negative. Only relevant for */ |
|
- | 871 | /* scalable formats. */ |
|
- | 872 | /* */ |
|
- | 873 | /* height :: The height is the vertical distance */ |
|
- | 874 | /* between two consecutive baselines, */ |
|
- | 875 | /* expressed in font units. It is always */ |
|
- | 876 | /* positive. Only relevant for scalable */ |
|
- | 877 | /* formats. */ |
|
- | 878 | /* */ |
|
- | 879 | /* max_advance_width :: The maximal advance width, in font units, */ |
|
- | 880 | /* for all glyphs in this face. This can be */ |
|
- | 881 | /* used to make word wrapping computations */ |
|
- | 882 | /* faster. Only relevant for scalable */ |
|
- | 883 | /* formats. */ |
|
- | 884 | /* */ |
|
- | 885 | /* max_advance_height :: The maximal advance height, in font units, */ |
|
- | 886 | /* for all glyphs in this face. This is only */ |
|
- | 887 | /* relevant for vertical layouts, and is set */ |
|
- | 888 | /* to `height' for fonts that do not provide */ |
|
- | 889 | /* vertical metrics. Only relevant for */ |
|
- | 890 | /* scalable formats. */ |
|
- | 891 | /* */ |
|
- | 892 | /* underline_position :: The position, in font units, of the */ |
|
- | 893 | /* underline line for this face. It is the */ |
|
- | 894 | /* center of the underlining stem. Only */ |
|
- | 895 | /* relevant for scalable formats. */ |
|
- | 896 | /* */ |
|
- | 897 | /* underline_thickness :: The thickness, in font units, of the */ |
|
- | 898 | /* underline for this face. Only relevant for */ |
|
- | 899 | /* scalable formats. */ |
|
- | 900 | /* */ |
|
- | 901 | /* glyph :: The face's associated glyph slot(s). */ |
|
- | 902 | /* */ |
|
- | 903 | /* size :: The current active size for this face. */ |
|
- | 904 | /* */ |
|
- | 905 | /* charmap :: The current active charmap for this face. */ |
|
- | 906 | /* */ |
|
- | 907 | /* |
|
- | 908 | /* Fields may be changed after a call to @FT_Attach_File or */ |
|
- | 909 | /* @FT_Attach_Stream. */ |
|
- | 910 | /* */ |
|
- | 911 | typedef struct FT_FaceRec_ |
|
- | 912 | { |
|
- | 913 | FT_Long num_faces; |
|
- | 914 | FT_Long face_index; |
|
- | 915 | ||
- | 916 | FT_Long face_flags; |
|
- | 917 | FT_Long style_flags; |
|
- | 918 | ||
- | 919 | FT_Long num_glyphs; |
|
- | 920 | ||
- | 921 | FT_String* family_name; |
|
- | 922 | FT_String* style_name; |
|
- | 923 | ||
- | 924 | FT_Int num_fixed_sizes; |
|
- | 925 | FT_Bitmap_Size* available_sizes; |
|
- | 926 | ||
- | 927 | FT_Int num_charmaps; |
|
- | 928 | FT_CharMap* charmaps; |
|
- | 929 | ||
- | 930 | FT_Generic generic; |
|
- | 931 | ||
- | 932 | /*# The following member variables (down to `underline_thickness') */ |
|
- | 933 | /*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size */ |
|
- | 934 | /*# for bitmap fonts. */ |
|
- | 935 | FT_BBox bbox; |
|
- | 936 | ||
- | 937 | FT_UShort units_per_EM; |
|
- | 938 | FT_Short ascender; |
|
- | 939 | FT_Short descender; |
|
- | 940 | FT_Short height; |
|
- | 941 | ||
- | 942 | FT_Short max_advance_width; |
|
- | 943 | FT_Short max_advance_height; |
|
- | 944 | ||
- | 945 | FT_Short underline_position; |
|
- | 946 | FT_Short underline_thickness; |
|
- | 947 | ||
- | 948 | FT_GlyphSlot glyph; |
|
- | 949 | FT_Size size; |
|
- | 950 | FT_CharMap charmap; |
|
- | 951 | ||
- | 952 | /*@private begin */ |
|
- | 953 | ||
- | 954 | FT_Driver driver; |
|
- | 955 | FT_Memory memory; |
|
- | 956 | FT_Stream stream; |
|
- | 957 | ||
- | 958 | FT_ListRec sizes_list; |
|
- | 959 | ||
- | 960 | FT_Generic autohint; |
|
- | 961 | void* extensions; |
|
- | 962 | ||
- | 963 | FT_Face_Internal internal; |
|
- | 964 | ||
- | 965 | /*@private end */ |
|
- | 966 | ||
- | 967 | } FT_FaceRec; |
|
- | 968 | ||
- | 969 | ||
- | 970 | /*************************************************************************/ |
|
- | 971 | /* */ |
|
- | 972 | /* |
|
- | 973 | /* FT_FACE_FLAG_XXX */ |
|
- | 974 | /* */ |
|
- | 975 | /* |
|
- | 976 | /* A list of bit flags used in the `face_flags' field of the */ |
|
- | 977 | /* @FT_FaceRec structure. They inform client applications of */ |
|
- | 978 | /* properties of the corresponding face. */ |
|
- | 979 | /* */ |
|
- | 980 | /* |
|
- | 981 | /* FT_FACE_FLAG_SCALABLE :: */ |
|
- | 982 | /* Indicates that the face contains outline glyphs. This doesn't */ |
|
- | 983 | /* prevent bitmap strikes, i.e., a face can have both this and */ |
|
- | 984 | /* and @FT_FACE_FLAG_FIXED_SIZES set. */ |
|
- | 985 | /* */ |
|
- | 986 | /* FT_FACE_FLAG_FIXED_SIZES :: */ |
|
- | 987 | /* Indicates that the face contains bitmap strikes. See also the */ |
|
- | 988 | /* `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec. */ |
|
- | 989 | /* */ |
|
- | 990 | /* FT_FACE_FLAG_FIXED_WIDTH :: */ |
|
- | 991 | /* Indicates that the face contains fixed-width characters (like */ |
|
- | 992 | /* Courier, Lucido, MonoType, etc.). */ |
|
- | 993 | /* */ |
|
- | 994 | /* FT_FACE_FLAG_SFNT :: */ |
|
- | 995 | /* Indicates that the face uses the `sfnt' storage scheme. For */ |
|
- | 996 | /* now, this means TrueType and OpenType. */ |
|
- | 997 | /* */ |
|
- | 998 | /* FT_FACE_FLAG_HORIZONTAL :: */ |
|
- | 999 | /* Indicates that the face contains horizontal glyph metrics. This */ |
|
- | 1000 | /* should be set for all common formats. */ |
|
- | 1001 | /* */ |
|
- | 1002 | /* FT_FACE_FLAG_VERTICAL :: */ |
|
- | 1003 | /* Indicates that the face contains vertical glyph metrics. This */ |
|
- | 1004 | /* is only available in some formats, not all of them. */ |
|
- | 1005 | /* */ |
|
- | 1006 | /* FT_FACE_FLAG_KERNING :: */ |
|
- | 1007 | /* Indicates that the face contains kerning information. If set, */ |
|
- | 1008 | /* the kerning distance can be retrieved through the function */ |
|
- | 1009 | /* @FT_Get_Kerning. Otherwise the function always return the */ |
|
- | 1010 | /* vector (0,0). Note that FreeType doesn't handle kerning data */ |
|
- | 1011 | /* from the `GPOS' table (as present in some OpenType fonts). */ |
|
- | 1012 | /* */ |
|
- | 1013 | /* FT_FACE_FLAG_FAST_GLYPHS :: */ |
|
- | 1014 | /* THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT. */ |
|
- | 1015 | /* */ |
|
- | 1016 | /* FT_FACE_FLAG_MULTIPLE_MASTERS :: */ |
|
- | 1017 | /* Indicates that the font contains multiple masters and is capable */ |
|
- | 1018 | /* of interpolating between them. See the multiple-masters */ |
|
Line 281... | Line -... | ||
281 | - | ||
Line -... | Line 1019... | ||
- | 1019 | /* specific API for details. */ |
|
- | 1020 | /* */ |
|
282 | TT_UShort x_resolution; /* device horizontal resolution in dpi */ |
1021 | /* FT_FACE_FLAG_GLYPH_NAMES :: */ |
- | 1022 | /* Indicates that the font contains glyph names that can be */ |
|
283 | TT_UShort y_resolution; /* device vertical resolution in dpi */ |
1023 | /* retrieved through @FT_Get_Glyph_Name. Note that some TrueType */ |
284 | }; |
1024 | /* fonts contain broken glyph name tables. Use the function */ |
- | 1025 | /* @FT_Has_PS_Glyph_Names when needed. */ |
|
- | 1026 | /* */ |
|
- | 1027 | /* FT_FACE_FLAG_EXTERNAL_STREAM :: */ |
|
- | 1028 | /* Used internally by FreeType to indicate that a face's stream was */ |
|
- | 1029 | /* provided by the client application and should not be destroyed */ |
|
- | 1030 | /* when @FT_Done_Face is called. Don't read or test this flag. */ |
|
- | 1031 | /* */ |
|
285 | 1032 | /* FT_FACE_FLAG_HINTER :: */ |
|
- | 1033 | /* Set if the font driver has a hinting machine of its own. For */ |
|
Line 286... | Line -... | ||
286 | typedef struct TT_Instance_Metrics_ TT_Instance_Metrics; |
- | |
287 | - | ||
Line -... | Line 1034... | ||
- | 1034 | /* example, with TrueType fonts, it makes sense to use data from */ |
|
- | 1035 | /* the SFNT `gasp' table only if the native TrueType hinting engine */ |
|
- | 1036 | /* (with the bytecode interpreter) is available and active. */ |
|
- | 1037 | /* */ |
|
- | 1038 | /* FT_FACE_FLAG_CID_KEYED :: */ |
|
288 | 1039 | /* Set if the font is CID-keyed. In that case, the font is not */ |
|
- | 1040 | /* accessed by glyph indices but by CID values. For subsetted */ |
|
- | 1041 | /* CID-keyed fonts this has the consequence that not all index */ |
|
- | 1042 | /* values are a valid argument to FT_Load_Glyph. Only the CID */ |
|
- | 1043 | /* values for which corresponding glyphs in the subsetted font */ |
|
289 | /* Flow constants: */ |
1044 | /* exist make FT_Load_Glyph return successfully; in all other cases */ |
- | 1045 | /* you get an `FT_Err_Invalid_Argument' error. */ |
|
Line 290... | Line -... | ||
290 | /* */ |
- | |
291 | /* The flow of a bitmap refers to the way lines are oriented */ |
- | |
Line -... | Line 1046... | ||
- | 1046 | /* */ |
|
- | 1047 | /* Note that CID-keyed fonts which are in an SFNT wrapper don't */ |
|
292 | /* within the bitmap data, i.e., the orientation of the Y */ |
1048 | /* have this flag set since the glyphs are accessed in the normal */ |
293 | /* coordinate axis. */ |
1049 | /* way (using contiguous indices); the `CID-ness' isn't visible to */ |
- | 1050 | /* the application. */ |
|
294 | /* */ |
1051 | /* */ |
- | 1052 | /* FT_FACE_FLAG_TRICKY :: */ |
|
- | 1053 | /* Set if the font is `tricky', this is, it always needs the */ |
|
- | 1054 | /* font format's native hinting engine to get a reasonable result. */ |
|
- | 1055 | /* A typical example is the Chinese font `mingli.ttf' which uses */ |
|
295 | /* For example, if the first bytes of the bitmap pertain to */ |
1056 | /* TrueType bytecode instructions to move and scale all of its */ |
- | 1057 | /* subglyphs. */ |
|
Line 296... | Line -... | ||
296 | /* its top-most line, then the flow is `down'. If these bytes */ |
- | |
297 | /* pertain to its lowest line, the the flow is `up'. */ |
- | |
Line -... | Line 1058... | ||
- | 1058 | /* */ |
|
- | 1059 | /* It is not possible to autohint such fonts using */ |
|
- | 1060 | /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */ |
|
298 | 1061 | /* @FT_LOAD_NO_HINTING. You have to set both FT_LOAD_NO_HINTING */ |
|
- | 1062 | /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */ |
|
299 | #define TT_Flow_Down -1 /* bitmap is oriented from top to bottom */ |
1063 | /* probably never want this except for demonstration purposes. */ |
- | 1064 | /* */ |
|
- | 1065 | /* Currently, there are six TrueType fonts in the list of tricky */ |
|
300 | #define TT_Flow_Up 1 /* bitmap is oriented from bottom to top */ |
1066 | /* fonts; they are hard-coded in file `ttobjs.c'. */ |
301 | #define TT_Flow_Error 0 /* an error occurred during rendering */ |
1067 | /* */ |
- | 1068 | #define FT_FACE_FLAG_SCALABLE ( 1L << 0 ) |
|
- | 1069 | #define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 ) |
|
- | 1070 | #define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 ) |
|
Line 302... | Line -... | ||
302 | - | ||
Line -... | Line 1071... | ||
- | 1071 | #define FT_FACE_FLAG_SFNT ( 1L << 3 ) |
|
- | 1072 | #define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 ) |
|
- | 1073 | #define FT_FACE_FLAG_VERTICAL ( 1L << 5 ) |
|
- | 1074 | #define FT_FACE_FLAG_KERNING ( 1L << 6 ) |
|
- | 1075 | #define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 ) |
|
- | 1076 | #define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 ) |
|
- | 1077 | #define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 ) |
|
- | 1078 | #define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 ) |
|
- | 1079 | #define FT_FACE_FLAG_HINTER ( 1L << 11 ) |
|
- | 1080 | #define FT_FACE_FLAG_CID_KEYED ( 1L << 12 ) |
|
- | 1081 | #define FT_FACE_FLAG_TRICKY ( 1L << 13 ) |
|
- | 1082 | ||
- | 1083 | ||
- | 1084 | /************************************************************************* |
|
- | 1085 | * |
|
- | 1086 | * @macro: |
|
- | 1087 | * FT_HAS_HORIZONTAL( face ) |
|
Line 303... | Line -... | ||
303 | - | ||
Line 304... | Line 1088... | ||
304 | /* A structure used to describe the target bitmap or pixmap to the */ |
1088 | * |
- | 1089 | * @description: |
|
- | 1090 | * A macro that returns true whenever a face object contains |
|
- | 1091 | * horizontal metrics (this is true for all font formats though). |
|
- | 1092 | * |
|
- | 1093 | * @also: |
|
305 | /* renderer. Note that there is nothing in this structure that */ |
1094 | * @FT_HAS_VERTICAL can be used to check for vertical metrics. |
306 | /* gives the nature of the buffer. */ |
1095 | * |
- | 1096 | */ |
|
- | 1097 | #define FT_HAS_HORIZONTAL( face ) \ |
|
- | 1098 | ( face->face_flags & FT_FACE_FLAG_HORIZONTAL ) |
|
- | 1099 | ||
307 | /* */ |
1100 | |
Line 308... | Line -... | ||
308 | /* IMPORTANT NOTE: */ |
- | |
309 | /* */ |
- | |
310 | /* In the case of a pixmap, the `width' and `cols' fields must */ |
- | |
311 | /* have the _same_ values, and _must_ be padded to 32-bits, i.e., */ |
- | |
312 | /* be a multiple of 4. Clipping problems will arise otherwise, */ |
- | |
313 | /* if not even page faults! */ |
- | |
314 | /* */ |
- | |
315 | /* The typical settings are: */ |
- | |
316 | /* */ |
- | |
317 | /* - for a WxH bitmap: */ |
- | |
318 | /* */ |
- | |
319 | /* rows = H */ |
- | |
320 | /* cols = (W+7) / 8 */ |
- | |
321 | /* width = W */ |
- | |
322 | /* flow = your_choice */ |
- | |
323 | /* */ |
- | |
324 | /* - for a WxH pixmap: */ |
- | |
325 | /* */ |
- | |
326 | /* rows = H */ |
- | |
327 | /* cols = (W+3) & ~3 */ |
- | |
328 | /* width = cols */ |
- | |
329 | /* flow = your_choice */ |
- | |
330 | - | ||
331 | struct TT_Raster_Map_ |
- | |
332 | { |
- | |
333 | int rows; /* number of rows */ |
- | |
334 | int cols; /* number of columns (bytes) per row */ |
- | |
335 | int width; /* number of pixels per line */ |
- | |
336 | int flow; /* bitmap orientation */ |
- | |
337 | - | ||
338 | void* bitmap; /* bit/pixmap buffer */ |
- | |
339 | long size; /* bit/pixmap size in bytes */ |
- | |
340 | }; |
- | |
341 | - | ||
342 | typedef struct TT_Raster_Map_ TT_Raster_Map; |
- | |
343 | - | ||
344 | - | ||
345 | /* ------ The font header TrueType table structure ------ */ |
- | |
346 | - | ||
347 | struct TT_Header_ |
- | |
Line -... | Line 1101... | ||
- | 1101 | /************************************************************************* |
|
- | 1102 | * |
|
- | 1103 | * @macro: |
|
348 | { |
1104 | * FT_HAS_VERTICAL( face ) |
349 | TT_Fixed Table_Version; |
1105 | * |
350 | TT_Fixed Font_Revision; |
1106 | * @description: |
- | 1107 | * A macro that returns true whenever a face object contains vertical |
|
- | 1108 | * metrics. |
|
351 | 1109 | * |
|
- | 1110 | */ |
|
- | 1111 | #define FT_HAS_VERTICAL( face ) \ |
|
352 | TT_Long CheckSum_Adjust; |
1112 | ( face->face_flags & FT_FACE_FLAG_VERTICAL ) |
353 | TT_Long Magic_Number; |
1113 | |
Line 354... | Line -... | ||
354 | - | ||
Line 355... | Line 1114... | ||
355 | TT_UShort Flags; |
1114 | |
- | 1115 | /************************************************************************* |
|
356 | TT_UShort Units_Per_EM; |
1116 | * |
357 | 1117 | * @macro: |
|
- | 1118 | * FT_HAS_KERNING( face ) |
|
358 | TT_Long Created [2]; |
1119 | * |
359 | TT_Long Modified[2]; |
1120 | * @description: |
- | 1121 | * A macro that returns true whenever a face object contains kerning |
|
- | 1122 | * data that can be accessed with @FT_Get_Kerning. |
|
360 | 1123 | * |
|
- | 1124 | */ |
|
Line -... | Line 1125... | ||
- | 1125 | #define FT_HAS_KERNING( face ) \ |
|
- | 1126 | ( face->face_flags & FT_FACE_FLAG_KERNING ) |
|
361 | TT_FWord xMin; |
1127 | |
362 | TT_FWord yMin; |
1128 | |
- | 1129 | /************************************************************************* |
|
363 | TT_FWord xMax; |
1130 | * |
- | 1131 | * @macro: |
|
364 | TT_FWord yMax; |
1132 | * FT_IS_SCALABLE( face ) |
- | 1133 | * |
|
- | 1134 | * @description: |
|
- | 1135 | * A macro that returns true whenever a face object contains a scalable |
|
- | 1136 | * font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF, |
|
Line 365... | Line -... | ||
365 | - | ||
366 | TT_UShort Mac_Style; |
- | |
Line -... | Line 1137... | ||
- | 1137 | * and PFR font formats. |
|
- | 1138 | * |
|
- | 1139 | */ |
|
- | 1140 | #define FT_IS_SCALABLE( face ) \ |
|
- | 1141 | ( face->face_flags & FT_FACE_FLAG_SCALABLE ) |
|
- | 1142 | ||
367 | TT_UShort Lowest_Rec_PPEM; |
1143 | |
- | 1144 | /************************************************************************* |
|
368 | 1145 | * |
|
- | 1146 | * @macro: |
|
- | 1147 | * FT_IS_SFNT( face ) |
|
- | 1148 | * |
|
369 | TT_Short Font_Direction; |
1149 | * @description: |
Line 370... | Line -... | ||
370 | TT_Short Index_To_Loc_Format; |
- | |
371 | TT_Short Glyph_Data_Format; |
- | |
372 | }; |
- | |
Line -... | Line 1150... | ||
- | 1150 | * A macro that returns true whenever a face object contains a font |
|
- | 1151 | * whose format is based on the SFNT storage scheme. This usually |
|
- | 1152 | * means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded |
|
- | 1153 | * bitmap fonts. |
|
- | 1154 | * |
|
- | 1155 | * If this macro is true, all functions defined in @FT_SFNT_NAMES_H and |
|
- | 1156 | * @FT_TRUETYPE_TABLES_H are available. |
|
- | 1157 | * |
|
- | 1158 | */ |
|
- | 1159 | #define FT_IS_SFNT( face ) \ |
|
- | 1160 | ( face->face_flags & FT_FACE_FLAG_SFNT ) |
|
- | 1161 | ||
- | 1162 | ||
- | 1163 | /************************************************************************* |
|
- | 1164 | * |
|
373 | 1165 | * @macro: |
|
Line -... | Line 1166... | ||
- | 1166 | * FT_IS_FIXED_WIDTH( face ) |
|
- | 1167 | * |
|
- | 1168 | * @description: |
|
374 | typedef struct TT_Header_ TT_Header; |
1169 | * A macro that returns true whenever a face object contains a font face |
- | 1170 | * that contains fixed-width (or `monospace', `fixed-pitch', etc.) |
|
- | 1171 | * glyphs. |
|
- | 1172 | * |
|
- | 1173 | */ |
|
- | 1174 | #define FT_IS_FIXED_WIDTH( face ) \ |
|
- | 1175 | ( face->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) |
|
- | 1176 | ||
- | 1177 | ||
Line 375... | Line -... | ||
375 | - | ||
376 | - | ||
377 | /* ------ The horizontal header TrueType table structure ------ */ |
- | |
378 | - | ||
Line 379... | Line 1178... | ||
379 | /*******************************************************/ |
1178 | /************************************************************************* |
380 | /* This structure is the one defined by the TrueType */ |
- | |
381 | /* specification, plus two fields used to link the */ |
1179 | * |
382 | /* font-units metrics to the header. */ |
1180 | * @macro: |
383 | - | ||
384 | struct TT_Horizontal_Header_ |
- | |
385 | { |
- | |
386 | TT_Fixed Version; |
1181 | * FT_HAS_FIXED_SIZES( face ) |
387 | TT_FWord Ascender; |
1182 | * |
388 | TT_FWord Descender; |
1183 | * @description: |
389 | TT_FWord Line_Gap; |
1184 | * A macro that returns true whenever a face object contains some |
390 | 1185 | * embedded bitmaps. See the `available_sizes' field of the |
|
391 | TT_UFWord advance_Width_Max; /* advance width maximum */ |
1186 | * @FT_FaceRec structure. |
392 | 1187 | * |
|
393 | TT_FWord min_Left_Side_Bearing; /* minimum left-sb */ |
1188 | */ |
394 | TT_FWord min_Right_Side_Bearing; /* minimum right-sb */ |
- | |
395 | TT_FWord xMax_Extent; /* xmax extents */ |
1189 | #define FT_HAS_FIXED_SIZES( face ) \ |
396 | TT_FWord caret_Slope_Rise; |
- | |
397 | TT_FWord caret_Slope_Run; |
- | |
398 | - | ||
399 | TT_Short Reserved0, |
- | |
400 | Reserved1, |
1190 | ( face->face_flags & FT_FACE_FLAG_FIXED_SIZES ) |
401 | Reserved2, |
1191 | |
402 | Reserved3, |
1192 | |
403 | Reserved4; |
1193 | /************************************************************************* |
404 | - | ||
405 | TT_Short metric_Data_Format; |
1194 | * |
406 | TT_UShort number_Of_HMetrics; |
- | |
407 | - | ||
408 | /* The following fields are not defined by the TrueType specification */ |
1195 | * @macro: |
409 | /* but they're used to connect the metrics header to the relevant */ |
- | |
410 | /* `HMTX' or `VMTX' table. */ |
1196 | * FT_HAS_FAST_GLYPHS( face ) |
411 | 1197 | * |
|
412 | void* long_metrics; |
1198 | * @description: |
413 | void* short_metrics; |
- | |
414 | }; |
- | |
415 | - | ||
416 | typedef struct TT_Horizontal_Header_ TT_Horizontal_Header; |
1199 | * Deprecated. |
417 | - | ||
418 | 1200 | * |
|
419 | /*******************************************************/ |
1201 | */ |
420 | /* This structure is the one defined by the TrueType */ |
- | |
Line 421... | Line -... | ||
421 | /* specification. Note that it has exactly the same */ |
- | |
Line -... | Line 1202... | ||
- | 1202 | #define FT_HAS_FAST_GLYPHS( face ) 0 |
|
- | 1203 | ||
- | 1204 | ||
- | 1205 | /************************************************************************* |
|
- | 1206 | * |
|
- | 1207 | * @macro: |
|
- | 1208 | * FT_HAS_GLYPH_NAMES( face ) |
|
- | 1209 | * |
|
- | 1210 | * @description: |
|
- | 1211 | * A macro that returns true whenever a face object contains some glyph |
|
Line 422... | Line -... | ||
422 | /* layout as the horizontal header (both are loaded */ |
- | |
Line -... | Line 1212... | ||
- | 1212 | * names that can be accessed through @FT_Get_Glyph_Name. |
|
- | 1213 | * |
|
- | 1214 | */ |
|
- | 1215 | #define FT_HAS_GLYPH_NAMES( face ) \ |
|
- | 1216 | ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) |
|
- | 1217 | ||
- | 1218 | ||
- | 1219 | /************************************************************************* |
|
- | 1220 | * |
|
- | 1221 | * @macro: |
|
- | 1222 | * FT_HAS_MULTIPLE_MASTERS( face ) |
|
- | 1223 | * |
|
- | 1224 | * @description: |
|
- | 1225 | * A macro that returns true whenever a face object contains some |
|
- | 1226 | * multiple masters. The functions provided by @FT_MULTIPLE_MASTERS_H |
|
- | 1227 | * are then available to choose the exact design you want. |
|
- | 1228 | * |
|
- | 1229 | */ |
|
- | 1230 | #define FT_HAS_MULTIPLE_MASTERS( face ) \ |
|
- | 1231 | ( face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) |
|
- | 1232 | ||
- | 1233 | ||
- | 1234 | /************************************************************************* |
|
- | 1235 | * |
|
- | 1236 | * @macro: |
|
- | 1237 | * FT_IS_CID_KEYED( face ) |
|
- | 1238 | * |
|
- | 1239 | * @description: |
|
- | 1240 | * A macro that returns true whenever a face object contains a CID-keyed |
|
- | 1241 | * font. See the discussion of @FT_FACE_FLAG_CID_KEYED for more |
|
- | 1242 | * details. |
|
- | 1243 | * |
|
- | 1244 | * If this macro is true, all functions defined in @FT_CID_H are |
|
- | 1245 | * available. |
|
- | 1246 | * |
|
- | 1247 | */ |
|
- | 1248 | #define FT_IS_CID_KEYED( face ) \ |
|
- | 1249 | ( face->face_flags & FT_FACE_FLAG_CID_KEYED ) |
|
- | 1250 | ||
- | 1251 | ||
- | 1252 | /************************************************************************* |
|
- | 1253 | * |
|
- | 1254 | * @macro: |
|
- | 1255 | * FT_IS_TRICKY( face ) |
|
- | 1256 | * |
|
- | 1257 | * @description: |
|
- | 1258 | * A macro that returns true whenever a face represents a `tricky' font. |
|
- | 1259 | * See the discussion of @FT_FACE_FLAG_TRICKY for more details. |
|
- | 1260 | * |
|
- | 1261 | */ |
|
- | 1262 | #define FT_IS_TRICKY( face ) \ |
|
- | 1263 | ( face->face_flags & FT_FACE_FLAG_TRICKY ) |
|
- | 1264 | ||
- | 1265 | ||
- | 1266 | /*************************************************************************/ |
|
423 | /* by the same function). */ |
1267 | /* */ |
424 | 1268 | /* |
|
425 | struct TT_Vertical_Header_ |
- | |
426 | { |
- | |
427 | TT_Fixed Version; |
- | |
428 | TT_FWord Ascender; |
- | |
429 | TT_FWord Descender; |
- | |
430 | TT_FWord Line_Gap; |
- | |
431 | - | ||
432 | TT_UFWord advance_Height_Max; /* advance height maximum */ |
- | |
433 | - | ||
434 | TT_FWord min_Top_Side_Bearing; /* minimum left-sb or top-sb */ |
- | |
435 | TT_FWord min_Bottom_Side_Bearing; /* minimum right-sb or bottom-sb */ |
1269 | /* FT_STYLE_FLAG_XXX */ |
436 | TT_FWord yMax_Extent; /* xmax or ymax extents */ |
1270 | /* */ |
437 | TT_FWord caret_Slope_Rise; |
- | |
Line 438... | Line 1271... | ||
438 | TT_FWord caret_Slope_Run; |
1271 | /* |
- | 1272 | /* A list of bit-flags used to indicate the style of a given face. */ |
|
Line -... | Line 1273... | ||
- | 1273 | /* These are used in the `style_flags' field of @FT_FaceRec. */ |
|
- | 1274 | /* */ |
|
- | 1275 | /* |
|
- | 1276 | /* FT_STYLE_FLAG_ITALIC :: */ |
|
Line 439... | Line 1277... | ||
439 | TT_FWord caret_Offset; |
1277 | /* Indicates that a given face style is italic or oblique. */ |
Line 440... | Line -... | ||
440 | - | ||
441 | TT_Short Reserved1, |
- | |
442 | Reserved2, |
- | |
443 | Reserved3, |
- | |
444 | Reserved4; |
- | |
445 | - | ||
Line -... | Line 1278... | ||
- | 1278 | /* */ |
|
- | 1279 | /* FT_STYLE_FLAG_BOLD :: */ |
|
- | 1280 | /* Indicates that a given face is bold. */ |
|
- | 1281 | /* */ |
|
- | 1282 | /* |
|
- | 1283 | /* The style information as provided by FreeType is very basic. More */ |
|
- | 1284 | /* details are beyond the scope and should be done on a higher level */ |
|
- | 1285 | /* (for example, by analyzing various fields of the `OS/2' table in */ |
|
- | 1286 | /* SFNT based fonts). */ |
|
- | 1287 | /* */ |
|
- | 1288 | #define FT_STYLE_FLAG_ITALIC ( 1 << 0 ) |
|
- | 1289 | #define FT_STYLE_FLAG_BOLD ( 1 << 1 ) |
|
- | 1290 | ||
- | 1291 | ||
- | 1292 | /*************************************************************************/ |
|
- | 1293 | /* */ |
|
- | 1294 | /* |
|
- | 1295 | /* FT_Size_Internal */ |
|
- | 1296 | /* */ |
|
- | 1297 | /* |
|
- | 1298 | /* An opaque handle to an `FT_Size_InternalRec' structure, used to */ |
|
- | 1299 | /* model private data of a given @FT_Size object. */ |
|
- | 1300 | /* */ |
|
- | 1301 | typedef struct FT_Size_InternalRec_* FT_Size_Internal; |
|
- | 1302 | ||
- | 1303 | ||
- | 1304 | /*************************************************************************/ |
|
- | 1305 | /* */ |
|
- | 1306 | /* |
|
- | 1307 | /* FT_Size_Metrics */ |
|
- | 1308 | /* */ |
|
- | 1309 | /* |
|
- | 1310 | /* The size metrics structure gives the metrics of a size object. */ |
|
- | 1311 | /* */ |
|
- | 1312 | /* |
|
- | 1313 | /* x_ppem :: The width of the scaled EM square in pixels, hence */ |
|
- | 1314 | /* the term `ppem' (pixels per EM). It is also */ |
|
- | 1315 | /* referred to as `nominal width'. */ |
|
- | 1316 | /* */ |
|
- | 1317 | /* y_ppem :: The height of the scaled EM square in pixels, */ |
|
- | 1318 | /* hence the term `ppem' (pixels per EM). It is also */ |
|
- | 1319 | /* referred to as `nominal height'. */ |
|
- | 1320 | /* */ |
|
- | 1321 | /* x_scale :: A 16.16 fractional scaling value used to convert */ |
|
- | 1322 | /* horizontal metrics from font units to 26.6 */ |
|
446 | TT_Short metric_Data_Format; |
1323 | /* fractional pixels. Only relevant for scalable */ |
- | 1324 | /* font formats. */ |
|
- | 1325 | /* */ |
|
- | 1326 | /* y_scale :: A 16.16 fractional scaling value used to convert */ |
|
- | 1327 | /* vertical metrics from font units to 26.6 */ |
|
- | 1328 | /* fractional pixels. Only relevant for scalable */ |
|
- | 1329 | /* font formats. */ |
|
- | 1330 | /* */ |
|
- | 1331 | /* ascender :: The ascender in 26.6 fractional pixels. See */ |
|
- | 1332 | /* @FT_FaceRec for the details. */ |
|
- | 1333 | /* */ |
|
- | 1334 | /* descender :: The descender in 26.6 fractional pixels. See */ |
|
- | 1335 | /* @FT_FaceRec for the details. */ |
|
- | 1336 | /* */ |
|
- | 1337 | /* height :: The height in 26.6 fractional pixels. See */ |
|
- | 1338 | /* @FT_FaceRec for the details. */ |
|
- | 1339 | /* */ |
|
- | 1340 | /* max_advance :: The maximal advance width in 26.6 fractional */ |
|
- | 1341 | /* pixels. See @FT_FaceRec for the details. */ |
|
- | 1342 | /* */ |
|
- | 1343 | /* |
|
- | 1344 | /* The scaling values, if relevant, are determined first during a */ |
|
- | 1345 | /* size changing operation. The remaining fields are then set by the */ |
|
- | 1346 | /* driver. For scalable formats, they are usually set to scaled */ |
|
- | 1347 | /* values of the corresponding fields in @FT_FaceRec. */ |
|
- | 1348 | /* */ |
|
- | 1349 | /* Note that due to glyph hinting, these values might not be exact */ |
|
- | 1350 | /* for certain fonts. Thus they must be treated as unreliable */ |
|
- | 1351 | /* with an error margin of at least one pixel! */ |
|
- | 1352 | /* */ |
|
- | 1353 | /* Indeed, the only way to get the exact metrics is to render _all_ */ |
|
- | 1354 | /* glyphs. As this would be a definite performance hit, it is up to */ |
|
- | 1355 | /* client applications to perform such computations. */ |
|
- | 1356 | /* */ |
|
- | 1357 | /* The FT_Size_Metrics structure is valid for bitmap fonts also. */ |
|
- | 1358 | /* */ |
|
- | 1359 | typedef struct FT_Size_Metrics_ |
|
- | 1360 | { |
|
- | 1361 | FT_UShort x_ppem; /* horizontal pixels per EM */ |
|
- | 1362 | FT_UShort y_ppem; /* vertical pixels per EM */ |
|
- | 1363 | ||
- | 1364 | FT_Fixed x_scale; /* scaling values used to convert font */ |
|
- | 1365 | FT_Fixed y_scale; /* units to 26.6 fractional pixels */ |
|
- | 1366 | ||
- | 1367 | FT_Pos ascender; /* ascender in 26.6 frac. pixels */ |
|
- | 1368 | FT_Pos descender; /* descender in 26.6 frac. pixels */ |
|
- | 1369 | FT_Pos height; /* text height in 26.6 frac. pixels */ |
|
- | 1370 | FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */ |
|
- | 1371 | ||
- | 1372 | } FT_Size_Metrics; |
|
- | 1373 | ||
- | 1374 | ||
- | 1375 | /*************************************************************************/ |
|
- | 1376 | /* */ |
|
- | 1377 | /* |
|
- | 1378 | /* FT_SizeRec */ |
|
- | 1379 | /* */ |
|
- | 1380 | /* |
|
- | 1381 | /* FreeType root size class structure. A size object models a face */ |
|
- | 1382 | /* object at a given size. */ |
|
- | 1383 | /* */ |
|
- | 1384 | /* |
|
- | 1385 | /* face :: Handle to the parent face object. */ |
|
- | 1386 | /* */ |
|
- | 1387 | /* generic :: A typeless pointer, which is unused by the FreeType */ |
|
- | 1388 | /* library or any of its drivers. It can be used by */ |
|
- | 1389 | /* client applications to link their own data to each size */ |
|
- | 1390 | /* object. */ |
|
- | 1391 | /* */ |
|
- | 1392 | /* metrics :: Metrics for this size object. This field is read-only. */ |
|
- | 1393 | /* */ |
|
- | 1394 | typedef struct FT_SizeRec_ |
|
- | 1395 | { |
|
- | 1396 | FT_Face face; /* parent face object */ |
|
- | 1397 | FT_Generic generic; /* generic pointer for client uses */ |
|
- | 1398 | FT_Size_Metrics metrics; /* size metrics */ |
|
- | 1399 | FT_Size_Internal internal; |
|
- | 1400 | ||
- | 1401 | } FT_SizeRec; |
|
- | 1402 | ||
- | 1403 | ||
- | 1404 | /*************************************************************************/ |
|
- | 1405 | /* */ |
|
- | 1406 | /* |
|
- | 1407 | /* FT_SubGlyph */ |
|
- | 1408 | /* */ |
|
- | 1409 | /* |
|
- | 1410 | /* The subglyph structure is an internal object used to describe */ |
|
- | 1411 | /* subglyphs (for example, in the case of composites). */ |
|
- | 1412 | /* */ |
|
- | 1413 | /* |
|
- | 1414 | /* The subglyph implementation is not part of the high-level API, */ |
|
- | 1415 | /* hence the forward structure declaration. */ |
|
- | 1416 | /* */ |
|
- | 1417 | /* You can however retrieve subglyph information with */ |
|
- | 1418 | /* @FT_Get_SubGlyph_Info. */ |
|
- | 1419 | /* */ |
|
- | 1420 | typedef struct FT_SubGlyphRec_* FT_SubGlyph; |
|
- | 1421 | ||
- | 1422 | ||
- | 1423 | /*************************************************************************/ |
|
- | 1424 | /* */ |
|
- | 1425 | /* |
|
- | 1426 | /* FT_Slot_Internal */ |
|
- | 1427 | /* */ |
|
- | 1428 | /* |
|
- | 1429 | /* An opaque handle to an `FT_Slot_InternalRec' structure, used to */ |
|
- | 1430 | /* model private data of a given @FT_GlyphSlot object. */ |
|
- | 1431 | /* */ |
|
- | 1432 | typedef struct FT_Slot_InternalRec_* FT_Slot_Internal; |
|
- | 1433 | ||
- | 1434 | ||
- | 1435 | /*************************************************************************/ |
|
- | 1436 | /* */ |
|
- | 1437 | /* |
|
- | 1438 | /* FT_GlyphSlotRec */ |
|
- | 1439 | /* */ |
|
- | 1440 | /* |
|
- | 1441 | /* FreeType root glyph slot class structure. A glyph slot is a */ |
|
- | 1442 | /* container where individual glyphs can be loaded, be they in */ |
|
- | 1443 | /* outline or bitmap format. */ |
|
- | 1444 | /* */ |
|
- | 1445 | /* |
|
- | 1446 | /* library :: A handle to the FreeType library instance */ |
|
- | 1447 | /* this slot belongs to. */ |
|
- | 1448 | /* */ |
|
- | 1449 | /* face :: A handle to the parent face object. */ |
|
- | 1450 | /* */ |
|
- | 1451 | /* next :: In some cases (like some font tools), several */ |
|
- | 1452 | /* glyph slots per face object can be a good */ |
|
- | 1453 | /* thing. As this is rare, the glyph slots are */ |
|
- | 1454 | /* listed through a direct, single-linked list */ |
|
- | 1455 | /* using its `next' field. */ |
|
- | 1456 | /* */ |
|
- | 1457 | /* generic :: A typeless pointer which is unused by the */ |
|
- | 1458 | /* FreeType library or any of its drivers. It */ |
|
- | 1459 | /* can be used by client applications to link */ |
|
- | 1460 | /* their own data to each glyph slot object. */ |
|
- | 1461 | /* */ |
|
- | 1462 | /* metrics :: The metrics of the last loaded glyph in the */ |
|
- | 1463 | /* slot. The returned values depend on the last */ |
|
- | 1464 | /* load flags (see the @FT_Load_Glyph API */ |
|
- | 1465 | /* function) and can be expressed either in 26.6 */ |
|
- | 1466 | /* fractional pixels or font units. */ |
|
- | 1467 | /* */ |
|
- | 1468 | /* Note that even when the glyph image is */ |
|
- | 1469 | /* transformed, the metrics are not. */ |
|
- | 1470 | /* */ |
|
- | 1471 | /* linearHoriAdvance :: The advance width of the unhinted glyph. */ |
|
- | 1472 | /* Its value is expressed in 16.16 fractional */ |
|
- | 1473 | /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ |
|
- | 1474 | /* when loading the glyph. This field can be */ |
|
- | 1475 | /* important to perform correct WYSIWYG layout. */ |
|
- | 1476 | /* Only relevant for outline glyphs. */ |
|
- | 1477 | /* */ |
|
- | 1478 | /* linearVertAdvance :: The advance height of the unhinted glyph. */ |
|
- | 1479 | /* Its value is expressed in 16.16 fractional */ |
|
- | 1480 | /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ |
|
- | 1481 | /* when loading the glyph. This field can be */ |
|
- | 1482 | /* important to perform correct WYSIWYG layout. */ |
|
- | 1483 | /* Only relevant for outline glyphs. */ |
|
- | 1484 | /* */ |
|
- | 1485 | /* advance :: This shorthand is, depending on */ |
|
- | 1486 | /* @FT_LOAD_IGNORE_TRANSFORM, the transformed */ |
|
- | 1487 | /* advance width for the glyph (in 26.6 */ |
|
- | 1488 | /* fractional pixel format). As specified with */ |
|
- | 1489 | /* @FT_LOAD_VERTICAL_LAYOUT, it uses either the */ |
|
- | 1490 | /* `horiAdvance' or the `vertAdvance' value of */ |
|
- | 1491 | /* `metrics' field. */ |
|
- | 1492 | /* */ |
|
- | 1493 | /* format :: This field indicates the format of the image */ |
|
- | 1494 | /* contained in the glyph slot. Typically */ |
|
- | 1495 | /* @FT_GLYPH_FORMAT_BITMAP, */ |
|
- | 1496 | /* @FT_GLYPH_FORMAT_OUTLINE, or */ |
|
- | 1497 | /* @FT_GLYPH_FORMAT_COMPOSITE, but others are */ |
|
- | 1498 | /* possible. */ |
|
- | 1499 | /* */ |
|
- | 1500 | /* bitmap :: This field is used as a bitmap descriptor */ |
|
- | 1501 | /* when the slot format is */ |
|
- | 1502 | /* @FT_GLYPH_FORMAT_BITMAP. Note that the */ |
|
- | 1503 | /* address and content of the bitmap buffer can */ |
|
- | 1504 | /* change between calls of @FT_Load_Glyph and a */ |
|
- | 1505 | /* few other functions. */ |
|
- | 1506 | /* */ |
|
- | 1507 | /* bitmap_left :: This is the bitmap's left bearing expressed */ |
|
- | 1508 | /* in integer pixels. Of course, this is only */ |
|
- | 1509 | /* valid if the format is */ |
|
- | 1510 | /* @FT_GLYPH_FORMAT_BITMAP. */ |
|
- | 1511 | /* */ |
|
- | 1512 | /* bitmap_top :: This is the bitmap's top bearing expressed in */ |
|
- | 1513 | /* integer pixels. Remember that this is the */ |
|
Line -... | Line 1514... | ||
- | 1514 | /* distance from the baseline to the top-most */ |
|
- | 1515 | /* glyph scanline, upwards y~coordinates being */ |
|
- | 1516 | /* *positive*. */ |
|
- | 1517 | /* */ |
|
Line 447... | Line -... | ||
447 | TT_UShort number_Of_VMetrics; |
- | |
448 | - | ||
449 | /* The following fields are not defined by the TrueType specification */ |
- | |
450 | /* but they're used to connect the metrics header to the relevant */ |
- | |
451 | /* `HMTX' or `VMTX' table. */ |
1518 | /* outline :: The outline descriptor for the current glyph */ |
452 | - | ||
Line -... | Line 1519... | ||
- | 1519 | /* image if its format is */ |
|
453 | void* long_metrics; |
1520 | /* @FT_GLYPH_FORMAT_OUTLINE. Once a glyph is */ |
- | 1521 | /* loaded, `outline' can be transformed, */ |
|
Line -... | Line 1522... | ||
- | 1522 | /* distorted, embolded, etc. However, it must */ |
|
Line 454... | Line 1523... | ||
454 | void* short_metrics; |
1523 | /* not be freed. */ |
- | 1524 | /* */ |
|
Line 455... | Line 1525... | ||
455 | }; |
1525 | /* num_subglyphs :: The number of subglyphs in a composite glyph. */ |
456 | - | ||
457 | typedef struct TT_Vertical_Header_ TT_Vertical_Header; |
- | |
458 | 1526 | /* This field is only valid for the composite */ |
|
459 | - | ||
Line 460... | Line 1527... | ||
460 | /* ------ The OS/2 table ------ */ |
1527 | /* glyph format that should normally only be */ |
461 | 1528 | /* loaded with the @FT_LOAD_NO_RECURSE flag. */ |
|
Line 462... | Line -... | ||
462 | /************************************************************************/ |
- | |
463 | /* Note that since FreeType 1.3, we support Mac fonts which do not have */ |
1529 | /* For now this is internal to FreeType. */ |
464 | /* an OS/2 table. In this case the `version' field will be set to */ |
- | |
Line 465... | Line -... | ||
465 | /* 0xFFFF by the table loader; all other fields should be 0. */ |
- | |
466 | 1530 | /* */ |
|
467 | struct TT_OS2_ |
- | |
468 | { |
- | |
469 | TT_UShort version; /* 0x0001 */ |
- | |
470 | TT_FWord xAvgCharWidth; |
- | |
471 | TT_UShort usWeightClass; |
- | |
Line 472... | Line 1531... | ||
472 | TT_UShort usWidthClass; |
1531 | /* subglyphs :: An array of subglyph descriptors for */ |
Line 473... | Line 1532... | ||
473 | TT_Short fsType; |
1532 | /* composite glyphs. There are `num_subglyphs' */ |
474 | TT_FWord ySubscriptXSize; |
1533 | /* elements in there. Currently internal to */ |
475 | TT_FWord ySubscriptYSize; |
- | |
476 | TT_FWord ySubscriptXOffset; |
1534 | /* FreeType. */ |
477 | TT_FWord ySubscriptYOffset; |
- | |
478 | TT_FWord ySuperscriptXSize; |
- | |
479 | TT_FWord ySuperscriptYSize; |
- | |
480 | TT_FWord ySuperscriptXOffset; |
1535 | /* */ |
481 | TT_FWord ySuperscriptYOffset; |
1536 | /* control_data :: Certain font drivers can also return the */ |
482 | TT_FWord yStrikeoutSize; |
- | |
483 | TT_FWord yStrikeoutPosition; |
1537 | /* control data for a given glyph image (e.g. */ |
484 | TT_Short sFamilyClass; |
1538 | /* TrueType bytecode, Type~1 charstrings, etc.). */ |
485 | - | ||
- | 1539 | /* This field is a pointer to such data. */ |
|
- | 1540 | /* */ |
|
486 | TT_Byte panose[10]; |
1541 | /* control_len :: This is the length in bytes of the control */ |
487 | 1542 | /* data. */ |
|
- | 1543 | /* */ |
|
488 | TT_ULong ulUnicodeRange1; /* Bits 0-31 */ |
1544 | /* other :: Really wicked formats can use this pointer to */ |
489 | TT_ULong ulUnicodeRange2; /* Bits 32-63 */ |
1545 | /* present their own glyph image to client */ |
490 | TT_ULong ulUnicodeRange3; /* Bits 64-95 */ |
1546 | /* applications. Note that the application */ |
- | 1547 | /* needs to know about the image format. */ |
|
- | 1548 | /* */ |
|
491 | TT_ULong ulUnicodeRange4; /* Bits 96-127 */ |
1549 | /* lsb_delta :: The difference between hinted and unhinted */ |
492 | 1550 | /* left side bearing while autohinting is */ |
|
493 | TT_Char achVendID[4]; |
1551 | /* active. Zero otherwise. */ |
494 | 1552 | /* */ |
|
495 | TT_UShort fsSelection; |
1553 | /* rsb_delta :: The difference between hinted and unhinted */ |
496 | TT_UShort usFirstCharIndex; |
1554 | /* right side bearing while autohinting is */ |
497 | TT_UShort usLastCharIndex; |
1555 | /* active. Zero otherwise. */ |
498 | TT_Short sTypoAscender; |
1556 | /* */ |
499 | TT_Short sTypoDescender; |
1557 | /* |
500 | TT_Short sTypoLineGap; |
- | |
501 | TT_UShort usWinAscent; |
- | |
502 | TT_UShort usWinDescent; |
- | |
503 | - | ||
504 | /* only version 1 tables: */ |
- | |
505 | - | ||
506 | TT_ULong ulCodePageRange1; /* Bits 0-31 */ |
- | |
507 | TT_ULong ulCodePageRange2; /* Bits 32-63 */ |
- | |
508 | }; |
1558 | /* If @FT_Load_Glyph is called with default flags (see */ |
509 | 1559 | /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */ |
|
510 | typedef struct TT_OS2_ TT_OS2; |
1560 | /* its native format (e.g., an outline glyph for TrueType and Type~1 */ |
511 | - | ||
512 | - | ||
513 | /* ------ The PostScript table ------ */ |
- | |
514 | - | ||
515 | struct TT_Postscript_ |
- | |
516 | { |
1561 | /* formats). */ |
517 | TT_Fixed FormatType; |
- | |
518 | TT_Fixed italicAngle; |
1562 | /* */ |
Line 519... | Line 1563... | ||
519 | TT_FWord underlinePosition; |
1563 | /* This image can later be converted into a bitmap by calling */ |
520 | TT_FWord underlineThickness; |
1564 | /* @FT_Render_Glyph. This function finds the current renderer for */ |
- | 1565 | /* the native image's format, then invokes it. */ |
|
521 | TT_ULong isFixedPitch; |
1566 | /* */ |
522 | TT_ULong minMemType42; |
1567 | /* The renderer is in charge of transforming the native image through */ |
523 | TT_ULong maxMemType42; |
1568 | /* the slot's face transformation fields, then converting it into a */ |
- | 1569 | /* bitmap that is returned in `slot->bitmap'. */ |
|
- | 1570 | /* */ |
|
524 | TT_ULong minMemType1; |
1571 | /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */ |
- | 1572 | /* to specify the position of the bitmap relative to the current pen */ |
|
525 | TT_ULong maxMemType1; |
1573 | /* position (e.g., coordinates (0,0) on the baseline). Of course, */ |
526 | 1574 | /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */ |
|
527 | /* Glyph names follow in the file, but we don't */ |
- | |
528 | /* load them by default. See the ftxpost.c extension. */ |
- | |
529 | }; |
- | |
530 | - | ||
531 | typedef struct TT_Postscript_ TT_Postscript; |
- | |
532 | - | ||
533 | 1575 | /* */ |
|
534 | /* ------ The horizontal device metrics table (`hdmx') ------ */ |
- | |
535 | - | ||
536 | struct TT_Hdmx_Record_ |
- | |
537 | { |
- | |
538 | TT_Byte ppem; |
- | |
539 | TT_Byte max_width; |
1576 | /* |
540 | TT_Byte* widths; |
- | |
541 | }; |
- | |
542 | 1577 | /* Here a small pseudo code fragment which shows how to use */ |
|
543 | typedef struct TT_Hdmx_Record_ TT_Hdmx_Record; |
- | |
544 | 1578 | /* `lsb_delta' and `rsb_delta': */ |
|
545 | 1579 | /* */ |
|
Line 546... | Line -... | ||
546 | struct TT_Hdmx_ |
- | |
547 | { |
1580 | /* { */ |
548 | TT_UShort version; |
1581 | /* FT_Pos origin_x = 0; */ |
549 | TT_Short num_records; |
- | |
550 | TT_Hdmx_Record* records; |
1582 | /* FT_Pos prev_rsb_delta = 0; */ |
551 | }; |
- | |
552 | 1583 | /* */ |
|
553 | typedef struct TT_Hdmx_ TT_Hdmx; |
- | |
554 | 1584 | /* */ |
|
- | 1585 | /* for all glyphs do */ |
|
- | 1586 | /* |
|
- | 1587 | /* `origin_x'> */ |
|
- | 1588 | /* */ |
|
- | 1589 | /* |
|
- | 1590 | /* */ |
|
- | 1591 | /* if ( prev_rsb_delta - face->glyph->lsb_delta >= 32 ) */ |
|
- | 1592 | /* origin_x -= 64; */ |
|
- | 1593 | /* else if ( prev_rsb_delta - face->glyph->lsb_delta < -32 ) */ |
|
- | 1594 | /* origin_x += 64; */ |
|
- | 1595 | /* */ |
|
- | 1596 | /* prev_rsb_delta = face->glyph->rsb_delta; */ |
|
- | 1597 | /* */ |
|
- | 1598 | /* |
|
- | 1599 | /* */ |
|
- | 1600 | /* origin_x += face->glyph->advance.x; */ |
|
- | 1601 | /* endfor */ |
|
- | 1602 | /* } */ |
|
- | 1603 | /* */ |
|
- | 1604 | typedef struct FT_GlyphSlotRec_ |
|
- | 1605 | { |
|
- | 1606 | FT_Library library; |
|
- | 1607 | FT_Face face; |
|
- | 1608 | FT_GlyphSlot next; |
|
- | 1609 | FT_UInt reserved; /* retained for binary compatibility */ |
|
- | 1610 | FT_Generic generic; |
|
- | 1611 | ||
- | 1612 | FT_Glyph_Metrics metrics; |
|
- | 1613 | FT_Fixed linearHoriAdvance; |
|
- | 1614 | FT_Fixed linearVertAdvance; |
|
- | 1615 | FT_Vector advance; |
|
- | 1616 | ||
- | 1617 | FT_Glyph_Format format; |
|
- | 1618 | ||
- | 1619 | FT_Bitmap bitmap; |
|
Line -... | Line 1620... | ||
- | 1620 | FT_Int bitmap_left; |
|
555 | 1621 | FT_Int bitmap_top; |
|
556 | /* A structure used to describe face properties. */ |
1622 | |
557 | 1623 | FT_Outline outline; |
|
558 | struct TT_Face_Properties_ |
- | |
- | 1624 | ||
Line 559... | Line -... | ||
559 | { |
- | |
Line -... | Line 1625... | ||
- | 1625 | FT_UInt num_subglyphs; |
|
- | 1626 | FT_SubGlyph subglyphs; |
|
560 | TT_UShort num_Glyphs; /* number of glyphs in face */ |
1627 | |
561 | TT_UShort max_Points; /* maximum number of points in a glyph */ |
1628 | void* control_data; |
562 | TT_UShort max_Contours; /* maximum number of contours in a glyph */ |
1629 | long control_len; |
- | 1630 | ||
563 | 1631 | FT_Pos lsb_delta; |
|
- | 1632 | FT_Pos rsb_delta; |
|
- | 1633 | ||
- | 1634 | void* other; |
|
564 | TT_UShort num_CharMaps; /* number of charmaps in the face */ |
1635 | |
- | 1636 | FT_Slot_Internal internal; |
|
565 | TT_UShort num_Names; /* number of name records in the face */ |
1637 | |
- | 1638 | } FT_GlyphSlotRec; |
|
566 | 1639 | ||
567 | TT_ULong num_Faces; /* 1 for normal TrueType files, and the */ |
1640 | |
- | 1641 | /*************************************************************************/ |
|
568 | /* number of embedded faces for TrueType */ |
1642 | /*************************************************************************/ |
- | 1643 | /* */ |
|
- | 1644 | /* F U N C T I O N S */ |
|
- | 1645 | /* */ |
|
- | 1646 | /*************************************************************************/ |
|
Line 569... | Line 1647... | ||
569 | /* collections */ |
1647 | /*************************************************************************/ |
570 | - | ||
571 | TT_Header* header; /* TrueType header table */ |
- | |
572 | TT_Horizontal_Header* horizontal; /* TrueType horizontal header */ |
- | |
Line -... | Line 1648... | ||
- | 1648 | ||
- | 1649 | ||
- | 1650 | /*************************************************************************/ |
|
- | 1651 | /* */ |
|
- | 1652 | /* |
|
- | 1653 | /* FT_Init_FreeType */ |
|
- | 1654 | /* */ |
|
- | 1655 | /* |
|
- | 1656 | /* Initialize a new FreeType library object. The set of modules */ |
|
- | 1657 | /* that are registered by this function is determined at build time. */ |
|
- | 1658 | /* */ |
|
- | 1659 | /* |
|
- | 1660 | /* alibrary :: A handle to a new library object. */ |
|
- | 1661 | /* */ |
|
- | 1662 | /* |
|
- | 1663 | /* FreeType error code. 0~means success. */ |
|
- | 1664 | /* */ |
|
- | 1665 | /* |
|
- | 1666 | /* In case you want to provide your own memory allocating routines, */ |
|
- | 1667 | /* use @FT_New_Library instead, followed by a call to */ |
|
- | 1668 | /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */ |
|
- | 1669 | /* */ |
|
- | 1670 | FT_EXPORT( FT_Error ) |
|
573 | TT_OS2* os2; /* TrueType OS/2 table */ |
1671 | FT_Init_FreeType( FT_Library *alibrary ); |
- | 1672 | ||
- | 1673 | ||
- | 1674 | /*************************************************************************/ |
|
- | 1675 | /* */ |
|
- | 1676 | /* |
|
- | 1677 | /* FT_Done_FreeType */ |
|
- | 1678 | /* */ |
|
- | 1679 | /* |
|
- | 1680 | /* Destroy a given FreeType library object and all of its children, */ |
|
574 | TT_Postscript* postscript; /* TrueType Postscript table */ |
1681 | /* including resources, drivers, faces, sizes, etc. */ |
- | 1682 | /* */ |
|
- | 1683 | /* */ |
|
- | 1684 | /* library :: A handle to the target library object. */ |
|
- | 1685 | /* */ |
|
- | 1686 | /* |
|
- | 1687 | /* FreeType error code. 0~means success. */ |
|
- | 1688 | /* */ |
|
- | 1689 | FT_EXPORT( FT_Error ) |
|
- | 1690 | FT_Done_FreeType( FT_Library library ); |
|
- | 1691 | ||
- | 1692 | ||
- | 1693 | /*************************************************************************/ |
|
- | 1694 | /* */ |
|
- | 1695 | /* |
|
- | 1696 | /* FT_OPEN_XXX */ |
|
- | 1697 | /* */ |
|
- | 1698 | /* |
|
- | 1699 | /* A list of bit-field constants used within the `flags' field of the */ |
|
- | 1700 | /* @FT_Open_Args structure. */ |
|
- | 1701 | /* */ |
|
- | 1702 | /* |
|
- | 1703 | /* FT_OPEN_MEMORY :: This is a memory-based stream. */ |
|
- | 1704 | /* */ |
|
- | 1705 | /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */ |
|
- | 1706 | /* */ |
|
- | 1707 | /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */ |
|
- | 1708 | /* name. */ |
|
- | 1709 | /* */ |
|
- | 1710 | /* FT_OPEN_DRIVER :: Use the `driver' field. */ |
|
- | 1711 | /* */ |
|
- | 1712 | /* FT_OPEN_PARAMS :: Use the `num_params' and `params' fields. */ |
|
- | 1713 | /* */ |
|
- | 1714 | /* ft_open_memory :: Deprecated; use @FT_OPEN_MEMORY instead. */ |
|
- | 1715 | /* */ |
|
Line 575... | Line 1716... | ||
575 | TT_Hdmx* hdmx; /* TrueType hor. dev. metr. table */ |
1716 | /* ft_open_stream :: Deprecated; use @FT_OPEN_STREAM instead. */ |
576 | TT_Vertical_Header* vertical; /* TT Vertical header, if present */ |
- | |
577 | }; |
- | |
578 | - | ||
579 | typedef struct TT_Face_Properties_ TT_Face_Properties; |
- | |
Line -... | Line 1717... | ||
- | 1717 | /* */ |
|
- | 1718 | /* ft_open_pathname :: Deprecated; use @FT_OPEN_PATHNAME instead. */ |
|
- | 1719 | /* */ |
|
- | 1720 | /* ft_open_driver :: Deprecated; use @FT_OPEN_DRIVER instead. */ |
|
- | 1721 | /* */ |
|
- | 1722 | /* ft_open_params :: Deprecated; use @FT_OPEN_PARAMS instead. */ |
|
- | 1723 | /* */ |
|
- | 1724 | /* |
|
- | 1725 | /* The `FT_OPEN_MEMORY', `FT_OPEN_STREAM', and `FT_OPEN_PATHNAME' */ |
|
- | 1726 | /* flags are mutually exclusive. */ |
|
- | 1727 | /* */ |
|
- | 1728 | #define FT_OPEN_MEMORY 0x1 |
|
580 | 1729 | #define FT_OPEN_STREAM 0x2 |
|
- | 1730 | #define FT_OPEN_PATHNAME 0x4 |
|
- | 1731 | #define FT_OPEN_DRIVER 0x8 |
|
- | 1732 | #define FT_OPEN_PARAMS 0x10 |
|
581 | 1733 | ||
- | 1734 | #define ft_open_memory FT_OPEN_MEMORY /* deprecated */ |
|
- | 1735 | #define ft_open_stream FT_OPEN_STREAM /* deprecated */ |
|
- | 1736 | #define ft_open_pathname FT_OPEN_PATHNAME /* deprecated */ |
|
582 | /* Here are the definitions of the handle types used for FreeType's */ |
1737 | #define ft_open_driver FT_OPEN_DRIVER /* deprecated */ |
583 | /* most common objects accessed by the client application. We use */ |
1738 | #define ft_open_params FT_OPEN_PARAMS /* deprecated */ |
584 | /* a simple trick: */ |
1739 | |
- | 1740 | ||
585 | /* */ |
1741 | /*************************************************************************/ |
- | 1742 | /* */ |
|
- | 1743 | /* |
|
- | 1744 | /* FT_Parameter */ |
|
- | 1745 | /* */ |
|
- | 1746 | /* |
|
Line 586... | Line -... | ||
586 | /* Each handle type is a structure that only contains one */ |
- | |
587 | /* pointer. The advantage of structures is that they are */ |
- | |
588 | /* mutually exclusive types. We could have defined the */ |
- | |
Line -... | Line 1747... | ||
- | 1747 | /* A simple structure used to pass more or less generic parameters to */ |
|
- | 1748 | /* @FT_Open_Face. */ |
|
- | 1749 | /* */ |
|
- | 1750 | /* |
|
- | 1751 | /* tag :: A four-byte identification tag. */ |
|
- | 1752 | /* */ |
|
- | 1753 | /* data :: A pointer to the parameter data. */ |
|
- | 1754 | /* */ |
|
- | 1755 | /* |
|
- | 1756 | /* The ID and function of parameters are driver-specific. See the */ |
|
- | 1757 | /* various FT_PARAM_TAG_XXX flags for more information. */ |
|
- | 1758 | /* */ |
|
- | 1759 | typedef struct FT_Parameter_ |
|
- | 1760 | { |
|
- | 1761 | FT_ULong tag; |
|
- | 1762 | FT_Pointer data; |
|
- | 1763 | ||
- | 1764 | } FT_Parameter; |
|
- | 1765 | ||
- | 1766 | ||
- | 1767 | /*************************************************************************/ |
|
- | 1768 | /* */ |
|
- | 1769 | /* |
|
- | 1770 | /* FT_Open_Args */ |
|
- | 1771 | /* */ |
|
- | 1772 | /* |
|
- | 1773 | /* A structure used to indicate how to open a new font file or */ |
|
- | 1774 | /* stream. A pointer to such a structure can be used as a parameter */ |
|
- | 1775 | /* for the functions @FT_Open_Face and @FT_Attach_Stream. */ |
|
- | 1776 | /* */ |
|
- | 1777 | /* |
|
- | 1778 | /* flags :: A set of bit flags indicating how to use the */ |
|
- | 1779 | /* structure. */ |
|
- | 1780 | /* */ |
|
- | 1781 | /* memory_base :: The first byte of the file in memory. */ |
|
- | 1782 | /* */ |
|
- | 1783 | /* memory_size :: The size in bytes of the file in memory. */ |
|
Line 589... | Line -... | ||
589 | /* following types: */ |
- | |
Line -... | Line 1784... | ||
- | 1784 | /* */ |
|
- | 1785 | /* pathname :: A pointer to an 8-bit file pathname. */ |
|
- | 1786 | /* */ |
|
- | 1787 | /* stream :: A handle to a source stream object. */ |
|
- | 1788 | /* */ |
|
- | 1789 | /* driver :: This field is exclusively used by @FT_Open_Face; */ |
|
- | 1790 | /* it simply specifies the font driver to use to open */ |
|
- | 1791 | /* the face. If set to~0, FreeType tries to load the */ |
|
- | 1792 | /* face with each one of the drivers in its list. */ |
|
- | 1793 | /* */ |
|
- | 1794 | /* num_params :: The number of extra parameters. */ |
|
- | 1795 | /* */ |
|
- | 1796 | /* params :: Extra parameters passed to the font driver when */ |
|
- | 1797 | /* opening a new face. */ |
|
- | 1798 | /* */ |
|
- | 1799 | /* |
|
- | 1800 | /* The stream type is determined by the contents of `flags' which */ |
|
- | 1801 | /* are tested in the following order by @FT_Open_Face: */ |
|
- | 1802 | /* */ |
|
- | 1803 | /* If the `FT_OPEN_MEMORY' bit is set, assume that this is a */ |
|
- | 1804 | /* memory file of `memory_size' bytes, located at `memory_address'. */ |
|
- | 1805 | /* The data are are not copied, and the client is responsible for */ |
|
- | 1806 | /* releasing and destroying them _after_ the corresponding call to */ |
|
- | 1807 | /* @FT_Done_Face. */ |
|
- | 1808 | /* */ |
|
- | 1809 | /* Otherwise, if the `FT_OPEN_STREAM' bit is set, assume that a */ |
|
- | 1810 | /* custom input stream `stream' is used. */ |
|
- | 1811 | /* */ |
|
- | 1812 | /* Otherwise, if the `FT_OPEN_PATHNAME' bit is set, assume that this */ |
|
- | 1813 | /* is a normal file and use `pathname' to open it. */ |
|
- | 1814 | /* */ |
|
- | 1815 | /* If the `FT_OPEN_DRIVER' bit is set, @FT_Open_Face only tries to */ |
|
- | 1816 | /* open the file with the driver whose handler is in `driver'. */ |
|
- | 1817 | /* */ |
|
- | 1818 | /* If the `FT_OPEN_PARAMS' bit is set, the parameters given by */ |
|
- | 1819 | /* `num_params' and `params' is used. They are ignored otherwise. */ |
|
- | 1820 | /* */ |
|
- | 1821 | /* Ideally, both the `pathname' and `params' fields should be tagged */ |
|
- | 1822 | /* as `const'; this is missing for API backwards compatibility. In */ |
|
- | 1823 | /* other words, applications should treat them as read-only. */ |
|
- | 1824 | /* */ |
|
- | 1825 | typedef struct FT_Open_Args_ |
|
- | 1826 | { |
|
- | 1827 | FT_UInt flags; |
|
- | 1828 | const FT_Byte* memory_base; |
|
- | 1829 | FT_Long memory_size; |
|
- | 1830 | FT_String* pathname; |
|
- | 1831 | FT_Stream stream; |
|
590 | /* */ |
1832 | FT_Module driver; |
- | 1833 | FT_Int num_params; |
|
- | 1834 | FT_Parameter* params; |
|
591 | /* typedef void* TT_Stream; */ |
1835 | |
592 | /* typedef void* TT_Face; */ |
1836 | } FT_Open_Args; |
Line -... | Line 1837... | ||
- | 1837 | ||
- | 1838 | ||
- | 1839 | /*************************************************************************/ |
|
- | 1840 | /* */ |
|
- | 1841 | /* |
|
- | 1842 | /* FT_New_Face */ |
|
- | 1843 | /* */ |
|
- | 1844 | /* |
|
- | 1845 | /* This function calls @FT_Open_Face to open a font by its pathname. */ |
|
- | 1846 | /* */ |
|
- | 1847 | /* |
|
- | 1848 | /* library :: A handle to the library resource. */ |
|
- | 1849 | /* */ |
|
- | 1850 | /* */ |
|
- | 1851 | /* pathname :: A path to the font file. */ |
|
- | 1852 | /* */ |
|
- | 1853 | /* face_index :: The index of the face within the font. The first */ |
|
- | 1854 | /* face has index~0. */ |
|
- | 1855 | /* */ |
|
593 | /* typedef void* TT_Instance; */ |
1856 | /* |
Line 594... | Line -... | ||
594 | /* typedef void* TT_Glyph; */ |
- | |
595 | /* typedef void* TT_CharMap; */ |
- | |
Line -... | Line 1857... | ||
- | 1857 | /* aface :: A handle to a new face object. If `face_index' is */ |
|
- | 1858 | /* greater than or equal to zero, it must be non-NULL. */ |
|
- | 1859 | /* See @FT_Open_Face for more details. */ |
|
- | 1860 | /* */ |
|
- | 1861 | /* |
|
- | 1862 | /* FreeType error code. 0~means success. */ |
|
- | 1863 | /* */ |
|
- | 1864 | FT_EXPORT( FT_Error ) |
|
- | 1865 | FT_New_Face( FT_Library library, |
|
- | 1866 | const char* filepathname, |
|
- | 1867 | FT_Long face_index, |
|
- | 1868 | FT_Face *aface ); |
|
- | 1869 | ||
- | 1870 | ||
- | 1871 | /*************************************************************************/ |
|
- | 1872 | /* */ |
|
- | 1873 | /* |
|
- | 1874 | /* FT_New_Memory_Face */ |
|
- | 1875 | /* */ |
|
- | 1876 | /* |
|
- | 1877 | /* This function calls @FT_Open_Face to open a font which has been */ |
|
- | 1878 | /* loaded into memory. */ |
|
- | 1879 | /* */ |
|
- | 1880 | /* |
|
- | 1881 | /* library :: A handle to the library resource. */ |
|
- | 1882 | /* */ |
|
- | 1883 | /* */ |
|
- | 1884 | /* file_base :: A pointer to the beginning of the font data. */ |
|
- | 1885 | /* */ |
|
- | 1886 | /* file_size :: The size of the memory chunk used by the font data. */ |
|
- | 1887 | /* */ |
|
- | 1888 | /* face_index :: The index of the face within the font. The first */ |
|
- | 1889 | /* face has index~0. */ |
|
Line 596... | Line -... | ||
596 | /* */ |
- | |
597 | /* but these would have allowed lines like: */ |
- | |
Line -... | Line 1890... | ||
- | 1890 | /* */ |
|
- | 1891 | /* |
|
- | 1892 | /* aface :: A handle to a new face object. If `face_index' is */ |
|
- | 1893 | /* greater than or equal to zero, it must be non-NULL. */ |
|
- | 1894 | /* See @FT_Open_Face for more details. */ |
|
- | 1895 | /* */ |
|
- | 1896 | /* |
|
- | 1897 | /* FreeType error code. 0~means success. */ |
|
- | 1898 | /* */ |
|
- | 1899 | /* |
|
- | 1900 | /* You must not deallocate the memory before calling @FT_Done_Face. */ |
|
- | 1901 | /* */ |
|
- | 1902 | FT_EXPORT( FT_Error ) |
|
- | 1903 | FT_New_Memory_Face( FT_Library library, |
|
- | 1904 | const FT_Byte* file_base, |
|
- | 1905 | FT_Long file_size, |
|
- | 1906 | FT_Long face_index, |
|
- | 1907 | FT_Face *aface ); |
|
- | 1908 | ||
- | 1909 | ||
- | 1910 | /*************************************************************************/ |
|
- | 1911 | /* */ |
|
- | 1912 | /* |
|
598 | /* */ |
1913 | /* FT_Open_Face */ |
599 | /* stream = instance; */ |
1914 | /* */ |
Line 600... | Line -... | ||
600 | /* */ |
- | |
601 | /* in the client code this would be a severe bug, unnoticed */ |
- | |
602 | /* by the compiler! */ |
- | |
Line -... | Line 1915... | ||
- | 1915 | /* |
|
- | 1916 | /* Create a face object from a given resource described by */ |
|
- | 1917 | /* @FT_Open_Args. */ |
|
603 | /* */ |
1918 | /* */ |
- | 1919 | /* |
|
- | 1920 | /* library :: A handle to the library resource. */ |
|
604 | /* Thus, we enforce type checking with a simple language */ |
1921 | /* */ |
605 | /* trick... */ |
1922 | /* */ |
606 | /* */ |
1923 | /* args :: A pointer to an `FT_Open_Args' structure which must */ |
- | 1924 | /* be filled by the caller. */ |
|
- | 1925 | /* */ |
|
- | 1926 | /* face_index :: The index of the face within the font. The first */ |
|
607 | /* NOTE: Some macros are defined in tttypes.h to perform */ |
1927 | /* face has index~0. */ |
- | 1928 | /* */ |
|
608 | /* automatic type conversions for library hackers... */ |
1929 | /* |
609 | 1930 | /* aface :: A handle to a new face object. If `face_index' is */ |
|
- | 1931 | /* greater than or equal to zero, it must be non-NULL. */ |
|
- | 1932 | /* See note below. */ |
|
610 | struct TT_Engine_ { void* z; }; |
1933 | /* */ |
- | 1934 | /* |
|
- | 1935 | /* FreeType error code. 0~means success. */ |
|
Line -... | Line 1936... | ||
- | 1936 | /* */ |
|
- | 1937 | /* |
|
- | 1938 | /* Unlike FreeType 1.x, this function automatically creates a glyph */ |
|
- | 1939 | /* slot for the face object which can be accessed directly through */ |
|
- | 1940 | /* `face->glyph'. */ |
|
- | 1941 | /* */ |
|
- | 1942 | /* FT_Open_Face can be used to quickly check whether the font */ |
|
- | 1943 | /* format of a given font resource is supported by FreeType. If the */ |
|
- | 1944 | /* `face_index' field is negative, the function's return value is~0 */ |
|
- | 1945 | /* if the font format is recognized, or non-zero otherwise; */ |
|
- | 1946 | /* the function returns a more or less empty face handle in `*aface' */ |
|
- | 1947 | /* (if `aface' isn't NULL). The only useful field in this special */ |
|
611 | struct TT_Stream_ { void* z; }; |
1948 | /* case is `face->num_faces' which gives the number of faces within */ |
- | 1949 | /* the font file. After examination, the returned @FT_Face structure */ |
|
- | 1950 | /* should be deallocated with a call to @FT_Done_Face. */ |
|
612 | struct TT_Face_ { void* z; }; |
1951 | /* */ |
- | 1952 | /* Each new face object created with this function also owns a */ |
|
- | 1953 | /* default @FT_Size object, accessible as `face->size'. */ |
|
- | 1954 | /* */ |
|
- | 1955 | /* See the discussion of reference counters in the description of */ |
|
- | 1956 | /* @FT_Reference_Face. */ |
|
Line 613... | Line -... | ||
613 | struct TT_Instance_ { void* z; }; |
- | |
614 | struct TT_Glyph_ { void* z; }; |
- | |
Line -... | Line 1957... | ||
- | 1957 | /* */ |
|
- | 1958 | FT_EXPORT( FT_Error ) |
|
- | 1959 | FT_Open_Face( FT_Library library, |
|
- | 1960 | const FT_Open_Args* args, |
|
- | 1961 | FT_Long face_index, |
|
- | 1962 | FT_Face *aface ); |
|
- | 1963 | ||
- | 1964 | ||
- | 1965 | /*************************************************************************/ |
|
- | 1966 | /* */ |
|
- | 1967 | /* |
|
- | 1968 | /* FT_Attach_File */ |
|
- | 1969 | /* */ |
|
- | 1970 | /* |
|
- | 1971 | /* This function calls @FT_Attach_Stream to attach a file. */ |
|
- | 1972 | /* */ |
|
- | 1973 | /* |
|
- | 1974 | /* face :: The target face object. */ |
|
- | 1975 | /* */ |
|
- | 1976 | /* */ |
|
- | 1977 | /* filepathname :: The pathname. */ |
|
- | 1978 | /* */ |
|
- | 1979 | /* |
|
- | 1980 | /* FreeType error code. 0~means success. */ |
|
- | 1981 | /* */ |
|
- | 1982 | FT_EXPORT( FT_Error ) |
|
- | 1983 | FT_Attach_File( FT_Face face, |
|
- | 1984 | const char* filepathname ); |
|
- | 1985 | ||
- | 1986 | ||
- | 1987 | /*************************************************************************/ |
|
- | 1988 | /* */ |
|
- | 1989 | /* |
|
- | 1990 | /* FT_Attach_Stream */ |
|
- | 1991 | /* */ |
|
- | 1992 | /* |
|
- | 1993 | /* `Attach' data to a face object. Normally, this is used to read */ |
|
- | 1994 | /* additional information for the face object. For example, you can */ |
|
- | 1995 | /* attach an AFM file that comes with a Type~1 font to get the */ |
|
- | 1996 | /* kerning values and other metrics. */ |
|
- | 1997 | /* */ |
|
- | 1998 | /* |
|
- | 1999 | /* face :: The target face object. */ |
|
- | 2000 | /* */ |
|
- | 2001 | /* */ |
|
- | 2002 | /* parameters :: A pointer to @FT_Open_Args which must be filled by */ |
|
- | 2003 | /* the caller. */ |
|
- | 2004 | /* */ |
|
- | 2005 | /* |
|
Line 615... | Line 2006... | ||
615 | struct TT_CharMap_ { void* z; }; |
2006 | /* FreeType error code. 0~means success. */ |
Line 616... | Line -... | ||
616 | - | ||
617 | typedef struct TT_Engine_ TT_Engine; /* engine instance */ |
2007 | /* */ |
618 | typedef struct TT_Stream_ TT_Stream; /* stream handle type */ |
- | |
619 | typedef struct TT_Face_ TT_Face; /* face handle type */ |
- | |
620 | typedef struct TT_Instance_ TT_Instance; /* instance handle type */ |
- | |
621 | typedef struct TT_Glyph_ TT_Glyph; /* glyph handle type */ |
- | |
Line -... | Line 2008... | ||
- | 2008 | /* |
|
- | 2009 | /* The meaning of the `attach' (i.e., what really happens when the */ |
|
- | 2010 | /* new file is read) is not fixed by FreeType itself. It really */ |
|
- | 2011 | /* depends on the font format (and thus the font driver). */ |
|
- | 2012 | /* */ |
|
- | 2013 | /* Client applications are expected to know what they are doing */ |
|
622 | typedef struct TT_CharMap_ TT_CharMap; /* character map handle type */ |
2014 | /* when invoking this function. Most drivers simply do not implement */ |
- | 2015 | /* file attachments. */ |
|
- | 2016 | /* */ |
|
- | 2017 | FT_EXPORT( FT_Error ) |
|
- | 2018 | FT_Attach_Stream( FT_Face face, |
|
- | 2019 | FT_Open_Args* parameters ); |
|
- | 2020 | ||
- | 2021 | ||
- | 2022 | /*************************************************************************/ |
|
- | 2023 | /* */ |
|
- | 2024 | /* |
|
- | 2025 | /* FT_Reference_Face */ |
|
- | 2026 | /* */ |
|
- | 2027 | /* |
|
- | 2028 | /* A counter gets initialized to~1 at the time an @FT_Face structure */ |
|
- | 2029 | /* is created. This function increments the counter. @FT_Done_Face */ |
|
- | 2030 | /* then only destroys a face if the counter is~1, otherwise it simply */ |
|
- | 2031 | /* decrements the counter. */ |
|
- | 2032 | /* */ |
|
- | 2033 | /* This function helps in managing life-cycles of structures which */ |
|
- | 2034 | /* reference @FT_Face objects. */ |
|
- | 2035 | /* */ |
|
- | 2036 | /* */ |
|
- | 2037 | /* face :: A handle to a target face object. */ |
|
- | 2038 | /* */ |
|
- | 2039 | /* |
|
- | 2040 | /* FreeType error code. 0~means success. */ |
|
- | 2041 | /* */ |
|
Line 623... | Line -... | ||
623 | - | ||
624 | - | ||
625 | /* Almost all functions return an error code of this type. */ |
- | |
626 | - | ||
627 | typedef long TT_Error; |
2042 | /* |
Line -... | Line 2043... | ||
- | 2043 | /* 2.4.2 */ |
|
- | 2044 | /* */ |
|
- | 2045 | FT_EXPORT( FT_Error ) |
|
- | 2046 | FT_Reference_Face( FT_Face face ); |
|
- | 2047 | ||
- | 2048 | ||
- | 2049 | /*************************************************************************/ |
|
- | 2050 | /* */ |
|
- | 2051 | /* |
|
Line 628... | Line -... | ||
628 | - | ||
Line -... | Line 2052... | ||
- | 2052 | /* FT_Done_Face */ |
|
- | 2053 | /* */ |
|
- | 2054 | /* |
|
- | 2055 | /* Discard a given face object, as well as all of its child slots and */ |
|
- | 2056 | /* sizes. */ |
|
- | 2057 | /* */ |
|
- | 2058 | /* */ |
|
- | 2059 | /* face :: A handle to a target face object. */ |
|
- | 2060 | /* */ |
|
- | 2061 | /* |
|
- | 2062 | /* FreeType error code. 0~means success. */ |
|
- | 2063 | /* */ |
|
- | 2064 | /* |
|
- | 2065 | /* See the discussion of reference counters in the description of */ |
|
- | 2066 | /* @FT_Reference_Face. */ |
|
- | 2067 | /* */ |
|
- | 2068 | FT_EXPORT( FT_Error ) |
|
- | 2069 | FT_Done_Face( FT_Face face ); |
|
- | 2070 | ||
- | 2071 | ||
629 | 2072 | /*************************************************************************/ |
|
- | 2073 | /* */ |
|
630 | /*******************************************************************/ |
2074 | /* |
- | 2075 | /* FT_Select_Size */ |
|
- | 2076 | /* */ |
|
- | 2077 | /* |
|
Line 631... | Line -... | ||
631 | /* */ |
- | |
632 | /* FreeType API */ |
- | |
633 | /* */ |
- | |
Line -... | Line 2078... | ||
- | 2078 | /* Select a bitmap strike. */ |
|
- | 2079 | /* */ |
|
- | 2080 | /* |
|
- | 2081 | /* face :: A handle to a target face object. */ |
|
- | 2082 | /* */ |
|
- | 2083 | /* */ |
|
- | 2084 | /* strike_index :: The index of the bitmap strike in the */ |
|
- | 2085 | /* `available_sizes' field of @FT_FaceRec structure. */ |
|
- | 2086 | /* */ |
|
- | 2087 | /* |
|
- | 2088 | /* FreeType error code. 0~means success. */ |
|
- | 2089 | /* */ |
|
- | 2090 | FT_EXPORT( FT_Error ) |
|
- | 2091 | FT_Select_Size( FT_Face face, |
|
- | 2092 | FT_Int strike_index ); |
|
- | 2093 | ||
- | 2094 | ||
- | 2095 | /*************************************************************************/ |
|
- | 2096 | /* */ |
|
- | 2097 | /* |
|
- | 2098 | /* FT_Size_Request_Type */ |
|
- | 2099 | /* */ |
|
- | 2100 | /* |
|
- | 2101 | /* An enumeration type that lists the supported size request types. */ |
|
- | 2102 | /* */ |
|
- | 2103 | /* |
|
- | 2104 | /* FT_SIZE_REQUEST_TYPE_NOMINAL :: */ |
|
- | 2105 | /* The nominal size. The `units_per_EM' field of @FT_FaceRec is */ |
|
- | 2106 | /* used to determine both scaling values. */ |
|
- | 2107 | /* */ |
|
- | 2108 | /* FT_SIZE_REQUEST_TYPE_REAL_DIM :: */ |
|
- | 2109 | /* The real dimension. The sum of the the `Ascender' and (minus */ |
|
- | 2110 | /* of) the `Descender' fields of @FT_FaceRec are used to determine */ |
|
- | 2111 | /* both scaling values. */ |
|
- | 2112 | /* */ |
|
- | 2113 | /* FT_SIZE_REQUEST_TYPE_BBOX :: */ |
|
- | 2114 | /* The font bounding box. The width and height of the `bbox' field */ |
|
- | 2115 | /* of @FT_FaceRec are used to determine the horizontal and vertical */ |
|
- | 2116 | /* scaling value, respectively. */ |
|
- | 2117 | /* */ |
|
- | 2118 | /* FT_SIZE_REQUEST_TYPE_CELL :: */ |
|
- | 2119 | /* The `max_advance_width' field of @FT_FaceRec is used to */ |
|
Line 634... | Line -... | ||
634 | /* All these begin with a `TT_' prefix. */ |
- | |
635 | /* */ |
- | |
Line -... | Line 2120... | ||
- | 2120 | /* determine the horizontal scaling value; the vertical scaling */ |
|
- | 2121 | /* value is determined the same way as */ |
|
- | 2122 | /* @FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling */ |
|
- | 2123 | /* values are set to the smaller one. This type is useful if you */ |
|
- | 2124 | /* want to specify the font size for, say, a window of a given */ |
|
- | 2125 | /* dimension and 80x24 cells. */ |
|
- | 2126 | /* */ |
|
- | 2127 | /* FT_SIZE_REQUEST_TYPE_SCALES :: */ |
|
- | 2128 | /* Specify the scaling values directly. */ |
|
- | 2129 | /* */ |
|
- | 2130 | /* |
|
- | 2131 | /* The above descriptions only apply to scalable formats. For bitmap */ |
|
- | 2132 | /* formats, the behaviour is up to the driver. */ |
|
- | 2133 | /* */ |
|
- | 2134 | /* See the note section of @FT_Size_Metrics if you wonder how size */ |
|
- | 2135 | /* requesting relates to scaling values. */ |
|
- | 2136 | /* */ |
|
- | 2137 | typedef enum FT_Size_Request_Type_ |
|
- | 2138 | { |
|
- | 2139 | FT_SIZE_REQUEST_TYPE_NOMINAL, |
|
636 | /* Most of them are implemented in the `ttapi.c' source file. */ |
2140 | FT_SIZE_REQUEST_TYPE_REAL_DIM, |
637 | /* */ |
2141 | FT_SIZE_REQUEST_TYPE_BBOX, |
638 | /*******************************************************************/ |
2142 | FT_SIZE_REQUEST_TYPE_CELL, |
639 | 2143 | FT_SIZE_REQUEST_TYPE_SCALES, |
|
Line -... | Line 2144... | ||
- | 2144 | ||
- | 2145 | FT_SIZE_REQUEST_TYPE_MAX |
|
- | 2146 | ||
- | 2147 | } FT_Size_Request_Type; |
|
- | 2148 | ||
- | 2149 | ||
- | 2150 | /*************************************************************************/ |
|
- | 2151 | /* */ |
|
- | 2152 | /* |
|
- | 2153 | /* FT_Size_RequestRec */ |
|
- | 2154 | /* */ |
|
- | 2155 | /* |
|
- | 2156 | /* A structure used to model a size request. */ |
|
- | 2157 | /* */ |
|
- | 2158 | /* |
|
- | 2159 | /* type :: See @FT_Size_Request_Type. */ |
|
- | 2160 | /* */ |
|
- | 2161 | /* width :: The desired width. */ |
|
- | 2162 | /* */ |
|
- | 2163 | /* height :: The desired height. */ |
|
- | 2164 | /* */ |
|
- | 2165 | /* horiResolution :: The horizontal resolution. If set to zero, */ |
|
- | 2166 | /* `width' is treated as a 26.6 fractional pixel */ |
|
- | 2167 | /* value. */ |
|
- | 2168 | /* */ |
|
- | 2169 | /* vertResolution :: The vertical resolution. If set to zero, */ |
|
- | 2170 | /* `height' is treated as a 26.6 fractional pixel */ |
|
- | 2171 | /* value. */ |
|
- | 2172 | /* */ |
|
- | 2173 | /* |
|
- | 2174 | /* If `width' is zero, then the horizontal scaling value is set equal */ |
|
- | 2175 | /* to the vertical scaling value, and vice versa. */ |
|
- | 2176 | /* */ |
|
640 | /* Get version information. */ |
2177 | typedef struct FT_Size_RequestRec_ |
- | 2178 | { |
|
- | 2179 | FT_Size_Request_Type type; |
|
- | 2180 | FT_Long width; |
|
- | 2181 | FT_Long height; |
|
- | 2182 | FT_UInt horiResolution; |
|
- | 2183 | FT_UInt vertResolution; |
|
Line 641... | Line -... | ||
641 | - | ||
642 | EXPORT_DEF |
- | |
643 | TT_Error TT_FreeType_Version( int *major, |
- | |
Line -... | Line 2184... | ||
- | 2184 | ||
- | 2185 | } FT_Size_RequestRec; |
|
- | 2186 | ||
- | 2187 | ||
- | 2188 | /*************************************************************************/ |
|
- | 2189 | /* */ |
|
- | 2190 | /* |
|
- | 2191 | /* FT_Size_Request */ |
|
- | 2192 | /* */ |
|
- | 2193 | /* |
|
- | 2194 | /* A handle to a size request structure. */ |
|
- | 2195 | /* */ |
|
- | 2196 | typedef struct FT_Size_RequestRec_ *FT_Size_Request; |
|
- | 2197 | ||
- | 2198 | ||
- | 2199 | /*************************************************************************/ |
|
- | 2200 | /* */ |
|
- | 2201 | /* |
|
- | 2202 | /* FT_Request_Size */ |
|
- | 2203 | /* */ |
|
- | 2204 | /* |
|
- | 2205 | /* Resize the scale of the active @FT_Size object in a face. */ |
|
- | 2206 | /* */ |
|
- | 2207 | /* |
|
- | 2208 | /* face :: A handle to a target face object. */ |
|
- | 2209 | /* */ |
|
- | 2210 | /* */ |
|
- | 2211 | /* req :: A pointer to a @FT_Size_RequestRec. */ |
|
- | 2212 | /* */ |
|
644 | int *minor ); |
2213 | /* |
645 | 2214 | /* FreeType error code. 0~means success. */ |
|
646 | 2215 | /* */ |
|
647 | /* Initialize the engine. */ |
2216 | /* |
Line 648... | Line -... | ||
648 | - | ||
649 | EXPORT_DEF |
- | |
Line -... | Line 2217... | ||
- | 2217 | /* Although drivers may select the bitmap strike matching the */ |
|
- | 2218 | /* request, you should not rely on this if you intend to select a */ |
|
650 | TT_Error TT_Init_FreeType( TT_Engine* engine ); |
2219 | /* particular bitmap strike. Use @FT_Select_Size instead in that */ |
- | 2220 | /* case. */ |
|
- | 2221 | /* */ |
|
- | 2222 | FT_EXPORT( FT_Error ) |
|
651 | 2223 | FT_Request_Size( FT_Face face, |
|
- | 2224 | FT_Size_Request req ); |
|
- | 2225 | ||
- | 2226 | ||
- | 2227 | /*************************************************************************/ |
|
- | 2228 | /* */ |
|
- | 2229 | /* |
|
- | 2230 | /* FT_Set_Char_Size */ |
|
- | 2231 | /* */ |
|
- | 2232 | /* |
|
- | 2233 | /* This function calls @FT_Request_Size to request the nominal size */ |
|
- | 2234 | /* (in points). */ |
|
- | 2235 | /* */ |
|
- | 2236 | /* |
|
652 | 2237 | /* face :: A handle to a target face object. */ |
|
653 | /* Finalize the engine, and release all allocated objects. */ |
2238 | /* */ |
654 | 2239 | /* */ |
|
- | 2240 | /* char_width :: The nominal width, in 26.6 fractional points. */ |
|
- | 2241 | /* */ |
|
- | 2242 | /* char_height :: The nominal height, in 26.6 fractional points. */ |
|
- | 2243 | /* */ |
|
- | 2244 | /* horz_resolution :: The horizontal resolution in dpi. */ |
|
- | 2245 | /* */ |
|
- | 2246 | /* vert_resolution :: The vertical resolution in dpi. */ |
|
- | 2247 | /* */ |
|
- | 2248 | /* |
|
- | 2249 | /* FreeType error code. 0~means success. */ |
|
- | 2250 | /* */ |
|
- | 2251 | /* |
|
- | 2252 | /* If either the character width or height is zero, it is set equal */ |
|
- | 2253 | /* to the other value. */ |
|
- | 2254 | /* */ |
|
- | 2255 | /* If either the horizontal or vertical resolution is zero, it is set */ |
|
- | 2256 | /* equal to the other value. */ |
|
- | 2257 | /* */ |
|
- | 2258 | /* A character width or height smaller than 1pt is set to 1pt; if */ |
|
- | 2259 | /* both resolution values are zero, they are set to 72dpi. */ |
|
- | 2260 | /* */ |
|
- | 2261 | /* Don't use this function if you are using the FreeType cache API. */ |
|
- | 2262 | /* */ |
|
- | 2263 | FT_EXPORT( FT_Error ) |
|
- | 2264 | FT_Set_Char_Size( FT_Face face, |
|
- | 2265 | FT_F26Dot6 char_width, |
|
- | 2266 | FT_F26Dot6 char_height, |
|
- | 2267 | FT_UInt horz_resolution, |
|
- | 2268 | FT_UInt vert_resolution ); |
|
- | 2269 | ||
- | 2270 | ||
- | 2271 | /*************************************************************************/ |
|
- | 2272 | /* */ |
|
- | 2273 | /* |
|
- | 2274 | /* FT_Set_Pixel_Sizes */ |
|
- | 2275 | /* */ |
|
- | 2276 | /* |
|
- | 2277 | /* This function calls @FT_Request_Size to request the nominal size */ |
|
- | 2278 | /* (in pixels). */ |
|
- | 2279 | /* */ |
|
- | 2280 | /* |
|
- | 2281 | /* face :: A handle to the target face object. */ |
|
- | 2282 | /* */ |
|
- | 2283 | /* */ |
|
- | 2284 | /* pixel_width :: The nominal width, in pixels. */ |
|
- | 2285 | /* */ |
|
- | 2286 | /* pixel_height :: The nominal height, in pixels. */ |
|
- | 2287 | /* */ |
|
- | 2288 | /* |
|
- | 2289 | /* FreeType error code. 0~means success. */ |
|
- | 2290 | /* */ |
|
- | 2291 | FT_EXPORT( FT_Error ) |
|
- | 2292 | FT_Set_Pixel_Sizes( FT_Face face, |
|
- | 2293 | FT_UInt pixel_width, |
|
- | 2294 | FT_UInt pixel_height ); |
|
- | 2295 | ||
- | 2296 | ||
- | 2297 | /*************************************************************************/ |
|
- | 2298 | /* */ |
|
- | 2299 | /* |
|
- | 2300 | /* FT_Load_Glyph */ |
|
- | 2301 | /* */ |
|
- | 2302 | /* |
|
- | 2303 | /* A function used to load a single glyph into the glyph slot of a */ |
|
- | 2304 | /* face object. */ |
|
- | 2305 | /* */ |
|
- | 2306 | /* |
|
- | 2307 | /* face :: A handle to the target face object where the glyph */ |
|
- | 2308 | /* is loaded. */ |
|
- | 2309 | /* */ |
|
- | 2310 | /* */ |
|
- | 2311 | /* glyph_index :: The index of the glyph in the font file. For */ |
|
- | 2312 | /* CID-keyed fonts (either in PS or in CFF format) */ |
|
- | 2313 | /* this argument specifies the CID value. */ |
|
- | 2314 | /* */ |
|
- | 2315 | /* load_flags :: A flag indicating what to load for this glyph. The */ |
|
- | 2316 | /* @FT_LOAD_XXX constants can be used to control the */ |
|
- | 2317 | /* glyph loading process (e.g., whether the outline */ |
|
- | 2318 | /* should be scaled, whether to load bitmaps or not, */ |
|
- | 2319 | /* whether to hint the outline, etc). */ |
|
- | 2320 | /* */ |
|
- | 2321 | /* |
|
- | 2322 | /* FreeType error code. 0~means success. */ |
|
- | 2323 | /* */ |
|
- | 2324 | /* |
|
- | 2325 | /* The loaded glyph may be transformed. See @FT_Set_Transform for */ |
|
- | 2326 | /* the details. */ |
|
- | 2327 | /* */ |
|
- | 2328 | /* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is */ |
|
- | 2329 | /* returned for invalid CID values (this is, for CID values which */ |
|
- | 2330 | /* don't have a corresponding glyph in the font). See the discussion */ |
|
- | 2331 | /* of the @FT_FACE_FLAG_CID_KEYED flag for more details. */ |
|
- | 2332 | /* */ |
|
- | 2333 | FT_EXPORT( FT_Error ) |
|
- | 2334 | FT_Load_Glyph( FT_Face face, |
|
- | 2335 | FT_UInt glyph_index, |
|
- | 2336 | FT_Int32 load_flags ); |
|
- | 2337 | ||
- | 2338 | ||
- | 2339 | /*************************************************************************/ |
|
- | 2340 | /* */ |
|
- | 2341 | /* |
|
- | 2342 | /* FT_Load_Char */ |
|
- | 2343 | /* */ |
|
- | 2344 | /* |
|
- | 2345 | /* A function used to load a single glyph into the glyph slot of a */ |
|
- | 2346 | /* face object, according to its character code. */ |
|
- | 2347 | /* */ |
|
- | 2348 | /* |
|
- | 2349 | /* face :: A handle to a target face object where the glyph */ |
|
- | 2350 | /* is loaded. */ |
|
- | 2351 | /* */ |
|
- | 2352 | /* */ |
|
- | 2353 | /* char_code :: The glyph's character code, according to the */ |
|
- | 2354 | /* current charmap used in the face. */ |
|
- | 2355 | /* */ |
|
- | 2356 | /* load_flags :: A flag indicating what to load for this glyph. The */ |
|
- | 2357 | /* @FT_LOAD_XXX constants can be used to control the */ |
|
- | 2358 | /* glyph loading process (e.g., whether the outline */ |
|
- | 2359 | /* should be scaled, whether to load bitmaps or not, */ |
|
- | 2360 | /* whether to hint the outline, etc). */ |
|
- | 2361 | /* */ |
|
Line -... | Line 2362... | ||
- | 2362 | /* |
|
Line 655... | Line 2363... | ||
655 | EXPORT_DEF |
2363 | /* FreeType error code. 0~means success. */ |
656 | TT_Error TT_Done_FreeType( TT_Engine engine ); |
2364 | /* */ |
657 | 2365 | /* |
|
Line 658... | Line -... | ||
658 | - | ||
659 | /* Set the gray level palette. This is an array of 5 bytes used */ |
- | |
660 | /* to produce the font smoothed pixmaps. By convention: */ |
- | |
661 | /* */ |
- | |
Line -... | Line 2366... | ||
- | 2366 | /* This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph. */ |
|
- | 2367 | /* */ |
|
- | 2368 | FT_EXPORT( FT_Error ) |
|
- | 2369 | FT_Load_Char( FT_Face face, |
|
- | 2370 | FT_ULong char_code, |
|
- | 2371 | FT_Int32 load_flags ); |
|
- | 2372 | ||
- | 2373 | ||
- | 2374 | /************************************************************************* |
|
- | 2375 | * |
|
- | 2376 | * @enum: |
|
- | 2377 | * FT_LOAD_XXX |
|
- | 2378 | * |
|
- | 2379 | * @description: |
|
- | 2380 | * A list of bit-field constants used with @FT_Load_Glyph to indicate |
|
- | 2381 | * what kind of operations to perform during glyph loading. |
|
- | 2382 | * |
|
- | 2383 | * @values: |
|
- | 2384 | * FT_LOAD_DEFAULT :: |
|
- | 2385 | * Corresponding to~0, this value is used as the default glyph load |
|
- | 2386 | * operation. In this case, the following happens: |
|
- | 2387 | * |
|
- | 2388 | * 1. FreeType looks for a bitmap for the glyph corresponding to the |
|
- | 2389 | * face's current size. If one is found, the function returns. |
|
- | 2390 | * The bitmap data can be accessed from the glyph slot (see note |
|
- | 2391 | * below). |
|
- | 2392 | * |
|
- | 2393 | * 2. If no embedded bitmap is searched or found, FreeType looks for a |
|
- | 2394 | * scalable outline. If one is found, it is loaded from the font |
|
- | 2395 | * file, scaled to device pixels, then `hinted' to the pixel grid |
|
- | 2396 | * in order to optimize it. The outline data can be accessed from |
|
- | 2397 | * the glyph slot (see note below). |
|
- | 2398 | * |
|
- | 2399 | * Note that by default, the glyph loader doesn't render outlines into |
|
- | 2400 | * bitmaps. The following flags are used to modify this default |
|
- | 2401 | * behaviour to more specific and useful cases. |
|
- | 2402 | * |
|
- | 2403 | * FT_LOAD_NO_SCALE :: |
|
- | 2404 | * Don't scale the outline glyph loaded, but keep it in font units. |
|
- | 2405 | * |
|
- | 2406 | * This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and |
|
- | 2407 | * unsets @FT_LOAD_RENDER. |
|
- | 2408 | * |
|
- | 2409 | * FT_LOAD_NO_HINTING :: |
|
- | 2410 | * Disable hinting. This generally generates `blurrier' bitmap glyph |
|
- | 2411 | * when the glyph is rendered in any of the anti-aliased modes. See |
|
- | 2412 | * also the note below. |
|
- | 2413 | * |
|
- | 2414 | * This flag is implied by @FT_LOAD_NO_SCALE. |
|
- | 2415 | * |
|
- | 2416 | * FT_LOAD_RENDER :: |
|
- | 2417 | * Call @FT_Render_Glyph after the glyph is loaded. By default, the |
|
- | 2418 | * glyph is rendered in @FT_RENDER_MODE_NORMAL mode. This can be |
|
- | 2419 | * overridden by @FT_LOAD_TARGET_XXX or @FT_LOAD_MONOCHROME. |
|
- | 2420 | * |
|
- | 2421 | * This flag is unset by @FT_LOAD_NO_SCALE. |
|
- | 2422 | * |
|
- | 2423 | * FT_LOAD_NO_BITMAP :: |
|
- | 2424 | * Ignore bitmap strikes when loading. Bitmap-only fonts ignore this |
|
- | 2425 | * flag. |
|
- | 2426 | * |
|
- | 2427 | * @FT_LOAD_NO_SCALE always sets this flag. |
|
- | 2428 | * |
|
- | 2429 | * FT_LOAD_VERTICAL_LAYOUT :: |
|
- | 2430 | * Load the glyph for vertical text layout. _Don't_ use it as it is |
|
Line -... | Line 2431... | ||
- | 2431 | * problematic currently. |
|
- | 2432 | * |
|
- | 2433 | * FT_LOAD_FORCE_AUTOHINT :: |
|
- | 2434 | * Indicates that the auto-hinter is preferred over the font's native |
|
662 | /* palette[0] = background (white) */ |
2435 | * hinter. See also the note below. |
Line 663... | Line -... | ||
663 | /* palette[1] = light */ |
- | |
664 | /* palette[2] = medium */ |
- | |
665 | /* palette[3] = dark */ |
- | |
Line -... | Line 2436... | ||
- | 2436 | * |
|
- | 2437 | * FT_LOAD_CROP_BITMAP :: |
|
- | 2438 | * Indicates that the font driver should crop the loaded bitmap glyph |
|
- | 2439 | * (i.e., remove all space around its black bits). Not all drivers |
|
- | 2440 | * implement this. |
|
- | 2441 | * |
|
- | 2442 | * FT_LOAD_PEDANTIC :: |
|
- | 2443 | * Indicates that the font driver should perform pedantic verifications |
|
- | 2444 | * during glyph loading. This is mostly used to detect broken glyphs |
|
- | 2445 | * in fonts. By default, FreeType tries to handle broken fonts also. |
|
- | 2446 | * |
|
Line 666... | Line -... | ||
666 | /* palette[4] = foreground (black) */ |
- | |
Line -... | Line 2447... | ||
- | 2447 | * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH :: |
|
- | 2448 | * Indicates that the font driver should ignore the global advance |
|
- | 2449 | * width defined in the font. By default, that value is used as the |
|
- | 2450 | * advance width for all glyphs when the face has |
|
- | 2451 | * @FT_FACE_FLAG_FIXED_WIDTH set. |
|
- | 2452 | * |
|
- | 2453 | * This flag exists for historical reasons (to support buggy CJK |
|
- | 2454 | * fonts). |
|
- | 2455 | * |
|
- | 2456 | * FT_LOAD_NO_RECURSE :: |
|
- | 2457 | * This flag is only used internally. It merely indicates that the |
|
- | 2458 | * font driver should not load composite glyphs recursively. Instead, |
|
- | 2459 | * it should set the `num_subglyph' and `subglyphs' values of the |
|
- | 2460 | * glyph slot accordingly, and set `glyph->format' to |
|
- | 2461 | * @FT_GLYPH_FORMAT_COMPOSITE. |
|
- | 2462 | * |
|
- | 2463 | * The description of sub-glyphs is not available to client |
|
- | 2464 | * applications for now. |
|
- | 2465 | * |
|
- | 2466 | * This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM. |
|
- | 2467 | * |
|
- | 2468 | * FT_LOAD_IGNORE_TRANSFORM :: |
|
- | 2469 | * Indicates that the transform matrix set by @FT_Set_Transform should |
|
- | 2470 | * be ignored. |
|
- | 2471 | * |
|
- | 2472 | * FT_LOAD_MONOCHROME :: |
|
- | 2473 | * This flag is used with @FT_LOAD_RENDER to indicate that you want to |
|
- | 2474 | * render an outline glyph to a 1-bit monochrome bitmap glyph, with |
|
667 | /* */ |
2475 | * 8~pixels packed into each byte of the bitmap data. |
668 | 2476 | * |
|
- | 2477 | * Note that this has no effect on the hinting algorithm used. You |
|
- | 2478 | * should rather use @FT_LOAD_TARGET_MONO so that the |
|
- | 2479 | * monochrome-optimized hinting algorithm is used. |
|
- | 2480 | * |
|
- | 2481 | * FT_LOAD_LINEAR_DESIGN :: |
|
- | 2482 | * Indicates that the `linearHoriAdvance' and `linearVertAdvance' |
|
- | 2483 | * fields of @FT_GlyphSlotRec should be kept in font units. See |
|
- | 2484 | * @FT_GlyphSlotRec for details. |
|
- | 2485 | * |
|
- | 2486 | * FT_LOAD_NO_AUTOHINT :: |
|
- | 2487 | * Disable auto-hinter. See also the note below. |
|
- | 2488 | * |
|
- | 2489 | * @note: |
|
- | 2490 | * By default, hinting is enabled and the font's native hinter (see |
|
- | 2491 | * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can |
|
- | 2492 | * disable hinting by setting @FT_LOAD_NO_HINTING or change the |
|
- | 2493 | * precedence by setting @FT_LOAD_FORCE_AUTOHINT. You can also set |
|
- | 2494 | * @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be |
|
- | 2495 | * used at all. |
|
- | 2496 | * |
|
- | 2497 | * See the description of @FT_FACE_FLAG_TRICKY for a special exception |
|
- | 2498 | * (affecting only a handful of Asian fonts). |
|
- | 2499 | * |
|
- | 2500 | * Besides deciding which hinter to use, you can also decide which |
|
- | 2501 | * hinting algorithm to use. See @FT_LOAD_TARGET_XXX for details. |
|
- | 2502 | * |
|
- | 2503 | */ |
|
- | 2504 | #define FT_LOAD_DEFAULT 0x0 |
|
- | 2505 | #define FT_LOAD_NO_SCALE 0x1 |
|
- | 2506 | #define FT_LOAD_NO_HINTING 0x2 |
|
- | 2507 | #define FT_LOAD_RENDER 0x4 |
|
- | 2508 | #define FT_LOAD_NO_BITMAP 0x8 |
|
- | 2509 | #define FT_LOAD_VERTICAL_LAYOUT 0x10 |
|
- | 2510 | #define FT_LOAD_FORCE_AUTOHINT 0x20 |
|
- | 2511 | #define FT_LOAD_CROP_BITMAP 0x40 |
|
- | 2512 | #define FT_LOAD_PEDANTIC 0x80 |
|
- | 2513 | #define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH 0x200 |
|
- | 2514 | #define FT_LOAD_NO_RECURSE 0x400 |
|
- | 2515 | #define FT_LOAD_IGNORE_TRANSFORM 0x800 |
|
- | 2516 | #define FT_LOAD_MONOCHROME 0x1000 |
|
- | 2517 | #define FT_LOAD_LINEAR_DESIGN 0x2000 |
|
- | 2518 | #define FT_LOAD_NO_AUTOHINT 0x8000U |
|
- | 2519 | ||
- | 2520 | /* */ |
|
- | 2521 | ||
- | 2522 | /* used internally only by certain font drivers! */ |
|
- | 2523 | #define FT_LOAD_ADVANCE_ONLY 0x100 |
|
- | 2524 | #define FT_LOAD_SBITS_ONLY 0x4000 |
|
- | 2525 | ||
- | 2526 | ||
- | 2527 | /************************************************************************** |
|
- | 2528 | * |
|
- | 2529 | * @enum: |
|
- | 2530 | * FT_LOAD_TARGET_XXX |
|
- | 2531 | * |
|
- | 2532 | * @description: |
|
- | 2533 | * A list of values that are used to select a specific hinting algorithm |
|
- | 2534 | * to use by the hinter. You should OR one of these values to your |
|
669 | EXPORT_DEF |
2535 | * `load_flags' when calling @FT_Load_Glyph. |
- | 2536 | * |
|
- | 2537 | * Note that font's native hinters may ignore the hinting algorithm you |
|
- | 2538 | * have specified (e.g., the TrueType bytecode interpreter). You can set |
|
- | 2539 | * @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used. |
|
- | 2540 | * |
|
- | 2541 | * Also note that @FT_LOAD_TARGET_LIGHT is an exception, in that it |
|
- | 2542 | * always implies @FT_LOAD_FORCE_AUTOHINT. |
|
Line -... | Line 2543... | ||
- | 2543 | * |
|
Line 670... | Line 2544... | ||
670 | TT_Error TT_Set_Raster_Gray_Palette( TT_Engine engine, |
2544 | * @values: |
Line 671... | Line -... | ||
671 | TT_Byte* palette ); |
- | |
672 | - | ||
Line -... | Line 2545... | ||
- | 2545 | * FT_LOAD_TARGET_NORMAL :: |
|
- | 2546 | * This corresponds to the default hinting algorithm, optimized for |
|
- | 2547 | * standard gray-level rendering. For monochrome output, use |
|
- | 2548 | * @FT_LOAD_TARGET_MONO instead. |
|
- | 2549 | * |
|
- | 2550 | * FT_LOAD_TARGET_LIGHT :: |
|
- | 2551 | * A lighter hinting algorithm for non-monochrome modes. Many |
|
- | 2552 | * generated glyphs are more fuzzy but better resemble its original |
|
- | 2553 | * shape. A bit like rendering on Mac OS~X. |
|
- | 2554 | * |
|
- | 2555 | * As a special exception, this target implies @FT_LOAD_FORCE_AUTOHINT. |
|
- | 2556 | * |
|
- | 2557 | * FT_LOAD_TARGET_MONO :: |
|
- | 2558 | * Strong hinting algorithm that should only be used for monochrome |
|
- | 2559 | * output. The result is probably unpleasant if the glyph is rendered |
|
Line 673... | Line -... | ||
673 | - | ||
Line -... | Line 2560... | ||
- | 2560 | * in non-monochrome modes. |
|
- | 2561 | * |
|
- | 2562 | * FT_LOAD_TARGET_LCD :: |
|
- | 2563 | * A variant of @FT_LOAD_TARGET_NORMAL optimized for horizontally |
|
- | 2564 | * decimated LCD displays. |
|
- | 2565 | * |
|
- | 2566 | * FT_LOAD_TARGET_LCD_V :: |
|
- | 2567 | * A variant of @FT_LOAD_TARGET_NORMAL optimized for vertically |
|
- | 2568 | * decimated LCD displays. |
|
- | 2569 | * |
|
- | 2570 | * @note: |
|
- | 2571 | * You should use only _one_ of the FT_LOAD_TARGET_XXX values in your |
|
- | 2572 | * `load_flags'. They can't be ORed. |
|
- | 2573 | * |
|
- | 2574 | * If @FT_LOAD_RENDER is also set, the glyph is rendered in the |
|
- | 2575 | * corresponding mode (i.e., the mode which matches the used algorithm |
|
- | 2576 | * best) unless @FT_LOAD_MONOCHROME is set. |
|
- | 2577 | * |
|
- | 2578 | * You can use a hinting algorithm that doesn't correspond to the same |
|
- | 2579 | * rendering mode. As an example, it is possible to use the `light' |
|
- | 2580 | * hinting algorithm and have the results rendered in horizontal LCD |
|
- | 2581 | * pixel mode, with code like |
|
674 | /* ----------------------- face management ----------------------- */ |
2582 | * |
- | 2583 | * { |
|
675 | 2584 | * FT_Load_Glyph( face, glyph_index, |
|
Line -... | Line 2585... | ||
- | 2585 | * load_flags | FT_LOAD_TARGET_LIGHT ); |
|
- | 2586 | * |
|
- | 2587 | * FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD ); |
|
- | 2588 | * } |
|
- | 2589 | * |
|
- | 2590 | */ |
|
- | 2591 | #define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 ) |
|
- | 2592 | ||
- | 2593 | #define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) |
|
- | 2594 | #define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) |
|
- | 2595 | #define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO ) |
|
- | 2596 | #define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD ) |
|
- | 2597 | #define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V ) |
|
- | 2598 | ||
- | 2599 | ||
- | 2600 | /************************************************************************** |
|
- | 2601 | * |
|
- | 2602 | * @macro: |
|
- | 2603 | * FT_LOAD_TARGET_MODE |
|
- | 2604 | * |
|
- | 2605 | * @description: |
|
- | 2606 | * Return the @FT_Render_Mode corresponding to a given |
|
- | 2607 | * @FT_LOAD_TARGET_XXX value. |
|
- | 2608 | * |
|
Line 676... | Line 2609... | ||
676 | /* Open a new TrueType font file, and returns a handle for */ |
2609 | */ |
Line 677... | Line -... | ||
677 | /* it in variable '*face'. */ |
- | |
Line -... | Line 2610... | ||
- | 2610 | #define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) ) |
|
- | 2611 | ||
- | 2612 | ||
678 | /* */ |
2613 | /*************************************************************************/ |
- | 2614 | /* */ |
|
- | 2615 | /* |
|
679 | /* Note: The file can be either a TrueType file (*.ttf) or */ |
2616 | /* FT_Set_Transform */ |
- | 2617 | /* */ |
|
680 | /* a TrueType collection (*.ttc, in this case, only */ |
2618 | /* |
- | 2619 | /* A function used to set the transformation that is applied to glyph */ |
|
Line -... | Line 2620... | ||
- | 2620 | /* images when they are loaded into a glyph slot through */ |
|
- | 2621 | /* @FT_Load_Glyph. */ |
|
- | 2622 | /* */ |
|
- | 2623 | /* |
|
- | 2624 | /* face :: A handle to the source face object. */ |
|
- | 2625 | /* */ |
|
681 | /* the first face is opened). The number of faces in */ |
2626 | /* */ |
- | 2627 | /* matrix :: A pointer to the transformation's 2x2 matrix. Use~0 for */ |
|
- | 2628 | /* the identity matrix. */ |
|
- | 2629 | /* delta :: A pointer to the translation vector. Use~0 for the null */ |
|
Line 682... | Line -... | ||
682 | /* the same collection can be obtained in the face's */ |
- | |
683 | /* properties, using TT_Get_Face_Properties() and the */ |
- | |
Line -... | Line 2630... | ||
- | 2630 | /* vector. */ |
|
- | 2631 | /* */ |
|
- | 2632 | /* |
|
- | 2633 | /* The transformation is only applied to scalable image formats after */ |
|
- | 2634 | /* the glyph has been loaded. It means that hinting is unaltered by */ |
|
- | 2635 | /* the transformation and is performed on the character size given in */ |
|
- | 2636 | /* the last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes. */ |
|
- | 2637 | /* */ |
|
- | 2638 | /* Note that this also transforms the `face.glyph.advance' field, but */ |
|
- | 2639 | /* *not* the values in `face.glyph.metrics'. */ |
|
Line 684... | Line -... | ||
684 | /* `max_Faces' field. */ |
- | |
685 | - | ||
686 | EXPORT_DEF |
- | |
687 | TT_Error TT_Open_Face( TT_Engine engine, |
- | |
Line -... | Line 2640... | ||
- | 2640 | /* */ |
|
- | 2641 | FT_EXPORT( void ) |
|
- | 2642 | FT_Set_Transform( FT_Face face, |
|
- | 2643 | FT_Matrix* matrix, |
|
- | 2644 | FT_Vector* delta ); |
|
688 | const TT_Text* fontPathName, |
2645 | |
- | 2646 | ||
- | 2647 | /*************************************************************************/ |
|
- | 2648 | /* */ |
|
- | 2649 | /* |
|
- | 2650 | /* FT_Render_Mode */ |
|
- | 2651 | /* */ |
|
- | 2652 | /* |
|
- | 2653 | /* An enumeration type that lists the render modes supported by */ |
|
- | 2654 | /* FreeType~2. Each mode corresponds to a specific type of scanline */ |
|
- | 2655 | /* conversion performed on the outline. */ |
|
- | 2656 | /* */ |
|
- | 2657 | /* For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode' */ |
|
- | 2658 | /* field in the @FT_GlyphSlotRec structure gives the format of the */ |
|
- | 2659 | /* returned bitmap. */ |
|
- | 2660 | /* */ |
|
- | 2661 | /* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity. */ |
|
- | 2662 | /* */ |
|
- | 2663 | /* |
|
- | 2664 | /* FT_RENDER_MODE_NORMAL :: */ |
|
- | 2665 | /* This is the default render mode; it corresponds to 8-bit */ |
|
- | 2666 | /* anti-aliased bitmaps. */ |
|
- | 2667 | /* */ |
|
- | 2668 | /* FT_RENDER_MODE_LIGHT :: */ |
|
- | 2669 | /* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only */ |
|
- | 2670 | /* defined as a separate value because render modes are also used */ |
|
- | 2671 | /* indirectly to define hinting algorithm selectors. See */ |
|
- | 2672 | /* @FT_LOAD_TARGET_XXX for details. */ |
|
- | 2673 | /* */ |
|
- | 2674 | /* FT_RENDER_MODE_MONO :: */ |
|
- | 2675 | /* This mode corresponds to 1-bit bitmaps (with 2~levels of */ |
|
- | 2676 | /* opacity). */ |
|
- | 2677 | /* */ |
|
- | 2678 | /* FT_RENDER_MODE_LCD :: */ |
|
Line 689... | Line 2679... | ||
689 | TT_Face* face ); |
2679 | /* This mode corresponds to horizontal RGB and BGR sub-pixel */ |
690 | 2680 | /* displays like LCD screens. It produces 8-bit bitmaps that are */ |
|
691 | 2681 | /* 3~times the width of the original glyph outline in pixels, and */ |
|
692 | /* Open a TrueType font file located inside a collection. */ |
2682 | /* which use the @FT_PIXEL_MODE_LCD mode. */ |
693 | /* The font is assigned by its index in `fontIndex'. */ |
2683 | /* */ |
694 | 2684 | /* FT_RENDER_MODE_LCD_V :: */ |
|
695 | EXPORT_DEF |
- | |
696 | TT_Error TT_Open_Collection( TT_Engine engine, |
2685 | /* This mode corresponds to vertical RGB and BGR sub-pixel displays */ |
697 | const TT_Text* collectionPathName, |
2686 | /* (like PDA screens, rotated LCD displays, etc.). It produces */ |
698 | TT_ULong fontIndex, |
2687 | /* 8-bit bitmaps that are 3~times the height of the original */ |
699 | TT_Face* face ); |
- | |
700 | - | ||
701 | 2688 | /* glyph outline in pixels and use the @FT_PIXEL_MODE_LCD_V mode. */ |
|
702 | /* Return face properties in the `properties' structure. */ |
2689 | /* */ |
703 | /* */ |
- | |
704 | /* Note that since version 1.3, we support font files with no */ |
2690 | /* |
705 | /* OS/2 table (mainly old Mac fonts). In this case, the OS/2 */ |
2691 | /* The LCD-optimized glyph bitmaps produced by FT_Render_Glyph can be */ |
706 | /* `version' field will be set to 0xFFFF, and all other fields */ |
2692 | /* filtered to reduce color-fringes by using @FT_Library_SetLcdFilter */ |
- | 2693 | /* (not active in the default builds). It is up to the caller to */ |
|
707 | /* will be zeroed. */ |
2694 | /* either call @FT_Library_SetLcdFilter (if available) or do the */ |
708 | 2695 | /* filtering itself. */ |
|
- | 2696 | /* */ |
|
- | 2697 | /* The selected render mode only affects vector glyphs of a font. */ |
|
- | 2698 | /* Embedded bitmaps often have a different pixel mode like */ |
|
- | 2699 | /* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform */ |
|
- | 2700 | /* them into 8-bit pixmaps. */ |
|
- | 2701 | /* */ |
|
- | 2702 | typedef enum FT_Render_Mode_ |
|
- | 2703 | { |
|
- | 2704 | FT_RENDER_MODE_NORMAL = 0, |
|
Line 709... | Line -... | ||
709 | EXPORT_DEF |
- | |
710 | TT_Error TT_Get_Face_Properties( TT_Face face, |
- | |
711 | TT_Face_Properties* properties ); |
- | |
712 | - | ||
713 | - | ||
Line -... | Line 2705... | ||
- | 2705 | FT_RENDER_MODE_LIGHT, |
|
- | 2706 | FT_RENDER_MODE_MONO, |
|
- | 2707 | FT_RENDER_MODE_LCD, |
|
- | 2708 | FT_RENDER_MODE_LCD_V, |
|
- | 2709 | ||
- | 2710 | FT_RENDER_MODE_MAX |
|
- | 2711 | ||
- | 2712 | } FT_Render_Mode; |
|
- | 2713 | ||
- | 2714 | ||
- | 2715 | /*************************************************************************/ |
|
- | 2716 | /* */ |
|
- | 2717 | /* |
|
- | 2718 | /* ft_render_mode_xxx */ |
|
- | 2719 | /* */ |
|
- | 2720 | /* |
|
- | 2721 | /* These constants are deprecated. Use the corresponding */ |
|
- | 2722 | /* @FT_Render_Mode values instead. */ |
|
- | 2723 | /* */ |
|
- | 2724 | /* |
|
- | 2725 | /* ft_render_mode_normal :: see @FT_RENDER_MODE_NORMAL */ |
|
- | 2726 | /* ft_render_mode_mono :: see @FT_RENDER_MODE_MONO */ |
|
- | 2727 | /* */ |
|
- | 2728 | #define ft_render_mode_normal FT_RENDER_MODE_NORMAL |
|
- | 2729 | #define ft_render_mode_mono FT_RENDER_MODE_MONO |
|
- | 2730 | ||
- | 2731 | ||
- | 2732 | /*************************************************************************/ |
|
- | 2733 | /* */ |
|
- | 2734 | /* |
|
- | 2735 | /* FT_Render_Glyph */ |
|
- | 2736 | /* */ |
|
- | 2737 | /* |
|
- | 2738 | /* Convert a given glyph image to a bitmap. It does so by inspecting */ |
|
- | 2739 | /* the glyph image format, finding the relevant renderer, and */ |
|
- | 2740 | /* invoking it. */ |
|
- | 2741 | /* */ |
|
- | 2742 | /* |
|
- | 2743 | /* slot :: A handle to the glyph slot containing the image to */ |
|
- | 2744 | /* convert. */ |
|
- | 2745 | /* */ |
|
Line 714... | Line -... | ||
714 | /* Set a face object's generic pointer */ |
- | |
715 | - | ||
716 | EXPORT_DEF |
- | |
Line -... | Line 2746... | ||
- | 2746 | /* */ |
|
- | 2747 | /* render_mode :: This is the render mode used to render the glyph */ |
|
- | 2748 | /* image into a bitmap. See @FT_Render_Mode for a */ |
|
717 | TT_Error TT_Set_Face_Pointer( TT_Face face, |
2749 | /* list of possible values. */ |
- | 2750 | /* */ |
|
- | 2751 | /* |
|
- | 2752 | /* FreeType error code. 0~means success. */ |
|
718 | void* data ); |
2753 | /* */ |
- | 2754 | FT_EXPORT( FT_Error ) |
|
- | 2755 | FT_Render_Glyph( FT_GlyphSlot slot, |
|
- | 2756 | FT_Render_Mode render_mode ); |
|
719 | 2757 | ||
- | 2758 | ||
- | 2759 | /*************************************************************************/ |
|
- | 2760 | /* */ |
|
- | 2761 | /* |
|
- | 2762 | /* FT_Kerning_Mode */ |
|
- | 2763 | /* */ |
|
- | 2764 | /* |
|
- | 2765 | /* An enumeration used to specify which kerning values to return in */ |
|
- | 2766 | /* @FT_Get_Kerning. */ |
|
Line -... | Line 2767... | ||
- | 2767 | /* */ |
|
- | 2768 | /* |
|
- | 2769 | /* FT_KERNING_DEFAULT :: Return scaled and grid-fitted kerning */ |
|
- | 2770 | /* distances (value is~0). */ |
|
- | 2771 | /* */ |
|
- | 2772 | /* FT_KERNING_UNFITTED :: Return scaled but un-grid-fitted kerning */ |
|
- | 2773 | /* distances. */ |
|
- | 2774 | /* */ |
|
- | 2775 | /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */ |
|
- | 2776 | /* units. */ |
|
- | 2777 | /* */ |
|
- | 2778 | typedef enum FT_Kerning_Mode_ |
|
- | 2779 | { |
|
- | 2780 | FT_KERNING_DEFAULT = 0, |
|
- | 2781 | FT_KERNING_UNFITTED, |
|
- | 2782 | FT_KERNING_UNSCALED |
|
- | 2783 | ||
- | 2784 | } FT_Kerning_Mode; |
|
- | 2785 | ||
- | 2786 | ||
- | 2787 | /*************************************************************************/ |
|
- | 2788 | /* */ |
|
- | 2789 | /* |
|
- | 2790 | /* ft_kerning_default */ |
|
- | 2791 | /* */ |
|
- | 2792 | /* |
|
- | 2793 | /* This constant is deprecated. Please use @FT_KERNING_DEFAULT */ |
|
- | 2794 | /* instead. */ |
|
- | 2795 | /* */ |
|
- | 2796 | #define ft_kerning_default FT_KERNING_DEFAULT |
|
720 | 2797 | ||
Line 721... | Line -... | ||
721 | /* Get a face object's generic pointer */ |
- | |
722 | - | ||
723 | EXPORT_DEF |
- | |
Line -... | Line 2798... | ||
- | 2798 | ||
- | 2799 | /*************************************************************************/ |
|
- | 2800 | /* */ |
|
- | 2801 | /* |
|
- | 2802 | /* ft_kerning_unfitted */ |
|
- | 2803 | /* */ |
|
- | 2804 | /* |
|
- | 2805 | /* This constant is deprecated. Please use @FT_KERNING_UNFITTED */ |
|
- | 2806 | /* instead. */ |
|
- | 2807 | /* */ |
|
- | 2808 | #define ft_kerning_unfitted FT_KERNING_UNFITTED |
|
- | 2809 | ||
- | 2810 | ||
- | 2811 | /*************************************************************************/ |
|
- | 2812 | /* */ |
|
- | 2813 | /* |
|
- | 2814 | /* ft_kerning_unscaled */ |
|
- | 2815 | /* */ |
|
- | 2816 | /* |
|
- | 2817 | /* This constant is deprecated. Please use @FT_KERNING_UNSCALED */ |
|
- | 2818 | /* instead. */ |
|
- | 2819 | /* */ |
|
- | 2820 | #define ft_kerning_unscaled FT_KERNING_UNSCALED |
|
- | 2821 | ||
- | 2822 | ||
- | 2823 | /*************************************************************************/ |
|
- | 2824 | /* */ |
|
Line 724... | Line -... | ||
724 | void* TT_Get_Face_Pointer( TT_Face face ); |
- | |
725 | - | ||
Line -... | Line 2825... | ||
- | 2825 | /* |
|
- | 2826 | /* FT_Get_Kerning */ |
|
- | 2827 | /* */ |
|
- | 2828 | /* |
|
- | 2829 | /* Return the kerning vector between two glyphs of a same face. */ |
|
- | 2830 | /* */ |
|
- | 2831 | /* */ |
|
- | 2832 | /* face :: A handle to a source face object. */ |
|
726 | 2833 | /* */ |
|
- | 2834 | /* left_glyph :: The index of the left glyph in the kern pair. */ |
|
- | 2835 | /* */ |
|
- | 2836 | /* right_glyph :: The index of the right glyph in the kern pair. */ |
|
- | 2837 | /* */ |
|
727 | /* Close a face's file handle to save system resources. The file */ |
2838 | /* kern_mode :: See @FT_Kerning_Mode for more information. */ |
728 | /* will be re-opened automatically on the next disk access. */ |
2839 | /* Determines the scale and dimension of the returned */ |
- | 2840 | /* kerning vector. */ |
|
- | 2841 | /* */ |
|
- | 2842 | /* |
|
- | 2843 | /* akerning :: The kerning vector. This is either in font units */ |
|
Line 729... | Line 2844... | ||
729 | 2844 | /* or in pixels (26.6 format) for scalable formats, */ |
|
730 | EXPORT_DEF |
2845 | /* and in pixels for fixed-sizes formats. */ |
731 | TT_Error TT_Flush_Face( TT_Face face ); |
- | |
732 | - | ||
733 | /* Get a face's glyph metrics expressed in font units. Returns any */ |
- | |
734 | /* number of arrays. Set the fields to NULL if you are not interested */ |
- | |
735 | /* by a given array. */ |
2846 | /* */ |
736 | - | ||
737 | EXPORT_DEF |
- | |
738 | TT_Error TT_Get_Face_Metrics( TT_Face face, |
- | |
739 | TT_UShort firstGlyph, |
- | |
740 | TT_UShort lastGlyph, |
- | |
741 | TT_Short* leftBearings, |
2847 | /* |
742 | TT_UShort* widths, |
- | |
743 | TT_Short* topBearings, |
- | |
744 | TT_UShort* heights ); |
- | |
745 | 2848 | /* FreeType error code. 0~means success. */ |
|
746 | 2849 | /* */ |
|
747 | /* Close a given font object, destroying all associated */ |
2850 | /* |
- | 2851 | /* Only horizontal layouts (left-to-right & right-to-left) are */ |
|
748 | /* instances. */ |
2852 | /* supported by this method. Other layouts, or more sophisticated */ |
- | 2853 | /* kernings, are out of the scope of this API function -- they can be */ |
|
749 | 2854 | /* implemented through format-specific interfaces. */ |
|
750 | EXPORT_DEF |
2855 | /* */ |
751 | TT_Error TT_Close_Face( TT_Face face ); |
- | |
- | 2856 | FT_EXPORT( FT_Error ) |
|
- | 2857 | FT_Get_Kerning( FT_Face face, |
|
752 | 2858 | FT_UInt left_glyph, |
|
753 | 2859 | FT_UInt right_glyph, |
|
754 | /* Get font or table data. */ |
2860 | FT_UInt kern_mode, |
755 | 2861 | FT_Vector *akerning ); |
|
- | 2862 | ||
- | 2863 | ||
- | 2864 | /*************************************************************************/ |
|
- | 2865 | /* */ |
|
- | 2866 | /* |
|
756 | EXPORT_DEF |
2867 | /* FT_Get_Track_Kerning */ |
- | 2868 | /* */ |
|
- | 2869 | /* |
|
- | 2870 | /* Return the track kerning for a given face object at a given size. */ |
|
Line -... | Line 2871... | ||
- | 2871 | /* */ |
|
- | 2872 | /* */ |
|
- | 2873 | /* face :: A handle to a source face object. */ |
|
- | 2874 | /* */ |
|
- | 2875 | /* point_size :: The point size in 16.16 fractional points. */ |
|
- | 2876 | /* */ |
|
- | 2877 | /* degree :: The degree of tightness. */ |
|
- | 2878 | /* */ |
|
- | 2879 | /* |
|
- | 2880 | /* akerning :: The kerning in 16.16 fractional points. */ |
|
- | 2881 | /* */ |
|
- | 2882 | /* |
|
- | 2883 | /* FreeType error code. 0~means success. */ |
|
- | 2884 | /* */ |
|
- | 2885 | FT_EXPORT( FT_Error ) |
|
- | 2886 | FT_Get_Track_Kerning( FT_Face face, |
|
- | 2887 | FT_Fixed point_size, |
|
- | 2888 | FT_Int degree, |
|
- | 2889 | FT_Fixed* akerning ); |
|
- | 2890 | ||
- | 2891 | ||
- | 2892 | /*************************************************************************/ |
|
- | 2893 | /* */ |
|
- | 2894 | /* |
|
- | 2895 | /* FT_Get_Glyph_Name */ |
|
- | 2896 | /* */ |
|
- | 2897 | /* |
|
- | 2898 | /* Retrieve the ASCII name of a given glyph in a face. This only */ |
|
- | 2899 | /* works for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1. */ |
|
- | 2900 | /* */ |
|
- | 2901 | /* */ |
|
- | 2902 | /* face :: A handle to a source face object. */ |
|
- | 2903 | /* */ |
|
- | 2904 | /* glyph_index :: The glyph index. */ |
|
- | 2905 | /* */ |
|
- | 2906 | /* buffer_max :: The maximal number of bytes available in the */ |
|
- | 2907 | /* buffer. */ |
|
- | 2908 | /* */ |
|
- | 2909 | /* |
|
- | 2910 | /* buffer :: A pointer to a target buffer where the name is */ |
|
- | 2911 | /* copied to. */ |
|
- | 2912 | /* */ |
|
- | 2913 | /* |
|
- | 2914 | /* FreeType error code. 0~means success. */ |
|
- | 2915 | /* */ |
|
- | 2916 | /* |
|
Line 757... | Line -... | ||
757 | TT_Error TT_Get_Font_Data( TT_Face face, |
- | |
Line -... | Line 2917... | ||
- | 2917 | /* An error is returned if the face doesn't provide glyph names or if */ |
|
- | 2918 | /* the glyph index is invalid. In all cases of failure, the first */ |
|
- | 2919 | /* byte of `buffer' is set to~0 to indicate an empty name. */ |
|
- | 2920 | /* */ |
|
- | 2921 | /* The glyph name is truncated to fit within the buffer if it is too */ |
|
- | 2922 | /* long. The returned string is always zero-terminated. */ |
|
- | 2923 | /* */ |
|
- | 2924 | /* This function is not compiled within the library if the config */ |
|
- | 2925 | /* macro `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is defined in */ |
|
- | 2926 | /* `include/freetype/config/ftoptions.h'. */ |
|
- | 2927 | /* */ |
|
- | 2928 | FT_EXPORT( FT_Error ) |
|
- | 2929 | FT_Get_Glyph_Name( FT_Face face, |
|
- | 2930 | FT_UInt glyph_index, |
|
- | 2931 | FT_Pointer buffer, |
|
- | 2932 | FT_UInt buffer_max ); |
|
- | 2933 | ||
- | 2934 | ||
- | 2935 | /*************************************************************************/ |
|
- | 2936 | /* */ |
|
- | 2937 | /* |
|
- | 2938 | /* FT_Get_Postscript_Name */ |
|
- | 2939 | /* */ |
|
- | 2940 | /* |
|
- | 2941 | /* Retrieve the ASCII PostScript name of a given face, if available. */ |
|
- | 2942 | /* This only works with PostScript and TrueType fonts. */ |
|
758 | TT_ULong tag, |
2943 | /* */ |
759 | TT_Long offset, |
2944 | /* */ |
- | 2945 | /* face :: A handle to the source face object. */ |
|
- | 2946 | /* */ |
|
- | 2947 | /* |
|
- | 2948 | /* A pointer to the face's PostScript name. NULL if unavailable. */ |
|
- | 2949 | /* */ |
|
Line 760... | Line -... | ||
760 | void* buffer, |
- | |
761 | TT_Long* length ); |
- | |
762 | - | ||
763 | - | ||
Line -... | Line 2950... | ||
- | 2950 | /* |
|
- | 2951 | /* The returned pointer is owned by the face and is destroyed with */ |
|
- | 2952 | /* it. */ |
|
- | 2953 | /* */ |
|
- | 2954 | FT_EXPORT( const char* ) |
|
- | 2955 | FT_Get_Postscript_Name( FT_Face face ); |
|
- | 2956 | ||
- | 2957 | ||
- | 2958 | /*************************************************************************/ |
|
- | 2959 | /* */ |
|
- | 2960 | /* |
|
- | 2961 | /* FT_Select_Charmap */ |
|
- | 2962 | /* */ |
|
- | 2963 | /* |
|
- | 2964 | /* Select a given charmap by its encoding tag (as listed in */ |
|
- | 2965 | /* `freetype.h'). */ |
|
- | 2966 | /* */ |
|
- | 2967 | /* |
|
- | 2968 | /* face :: A handle to the source face object. */ |
|
- | 2969 | /* */ |
|
Line 764... | Line -... | ||
764 | /* A simple macro to build table tags from ASCII chars */ |
- | |
Line -... | Line 2970... | ||
- | 2970 | /* */ |
|
- | 2971 | /* encoding :: A handle to the selected encoding. */ |
|
765 | 2972 | /* */ |
|
- | 2973 | /* |
|
- | 2974 | /* FreeType error code. 0~means success. */ |
|
- | 2975 | /* */ |
|
- | 2976 | /* |
|
766 | #define MAKE_TT_TAG( _x1, _x2, _x3, _x4 ) \ |
2977 | /* This function returns an error if no charmap in the face */ |
- | 2978 | /* corresponds to the encoding queried here. */ |
|
- | 2979 | /* */ |
|
- | 2980 | /* Because many fonts contain more than a single cmap for Unicode */ |
|
- | 2981 | /* encoding, this function has some special code to select the one */ |
|
- | 2982 | /* which covers Unicode best (`best' in the sense that a UCS-4 cmap */ |
|
- | 2983 | /* is preferred to a UCS-2 cmap). It is thus preferable to */ |
|
- | 2984 | /* @FT_Set_Charmap in this case. */ |
|
- | 2985 | /* */ |
|
- | 2986 | FT_EXPORT( FT_Error ) |
|
- | 2987 | FT_Select_Charmap( FT_Face face, |
|
- | 2988 | FT_Encoding encoding ); |
|
- | 2989 | ||
- | 2990 | ||
- | 2991 | /*************************************************************************/ |
|
- | 2992 | /* */ |
|
- | 2993 | /* |
|
- | 2994 | /* FT_Set_Charmap */ |
|
- | 2995 | /* */ |
|
Line -... | Line 2996... | ||
- | 2996 | /* |
|
- | 2997 | /* Select a given charmap for character code to glyph index mapping. */ |
|
- | 2998 | /* */ |
|
- | 2999 | /* |
|
- | 3000 | /* face :: A handle to the source face object. */ |
|
- | 3001 | /* */ |
|
- | 3002 | /* */ |
|
- | 3003 | /* charmap :: A handle to the selected charmap. */ |
|
767 | (((TT_ULong)_x1 << 24) | \ |
3004 | /* */ |
- | 3005 | /* |
|
- | 3006 | /* FreeType error code. 0~means success. */ |
|
- | 3007 | /* */ |
|
- | 3008 | /* |
|
- | 3009 | /* This function returns an error if the charmap is not part of */ |
|
- | 3010 | /* the face (i.e., if it is not listed in the `face->charmaps' */ |
|
- | 3011 | /* table). */ |
|
- | 3012 | /* */ |
|
- | 3013 | /* It also fails if a type~14 charmap is selected. */ |
|
- | 3014 | /* */ |
|
- | 3015 | FT_EXPORT( FT_Error ) |
|
- | 3016 | FT_Set_Charmap( FT_Face face, |
|
- | 3017 | FT_CharMap charmap ); |
|
- | 3018 | ||
- | 3019 | ||
- | 3020 | /************************************************************************* |
|
- | 3021 | * |
|
- | 3022 | * @function: |
|
- | 3023 | * FT_Get_Charmap_Index |
|
- | 3024 | * |
|
- | 3025 | * @description: |
|
- | 3026 | * Retrieve index of a given charmap. |
|
- | 3027 | * |
|
- | 3028 | * @input: |
|
- | 3029 | * charmap :: |
|
- | 3030 | * A handle to a charmap. |
|
- | 3031 | * |
|
- | 3032 | * @return: |
|
- | 3033 | * The index into the array of character maps within the face to which |
|
- | 3034 | * `charmap' belongs. If an error occurs, -1 is returned. |
|
- | 3035 | * |
|
- | 3036 | */ |
|
- | 3037 | FT_EXPORT( FT_Int ) |
|
- | 3038 | FT_Get_Charmap_Index( FT_CharMap charmap ); |
|
- | 3039 | ||
- | 3040 | ||
- | 3041 | /*************************************************************************/ |
|
- | 3042 | /* */ |
|
- | 3043 | /* |
|
- | 3044 | /* FT_Get_Char_Index */ |
|
- | 3045 | /* */ |
|
- | 3046 | /* |
|
Line 768... | Line -... | ||
768 | ((TT_ULong)_x2 << 16) | \ |
- | |
769 | ((TT_ULong)_x3 << 8) | \ |
- | |
770 | (TT_ULong)_x4) |
- | |
Line -... | Line 3047... | ||
- | 3047 | /* Return the glyph index of a given character code. This function */ |
|
- | 3048 | /* uses a charmap object to do the mapping. */ |
|
- | 3049 | /* */ |
|
- | 3050 | /* */ |
|
- | 3051 | /* face :: A handle to the source face object. */ |
|
- | 3052 | /* */ |
|
- | 3053 | /* charcode :: The character code. */ |
|
- | 3054 | /* */ |
|
- | 3055 | /* |
|
- | 3056 | /* The glyph index. 0~means `undefined character code'. */ |
|
- | 3057 | /* */ |
|
- | 3058 | /* |
|
- | 3059 | /* If you use FreeType to manipulate the contents of font files */ |
|
- | 3060 | /* directly, be aware that the glyph index returned by this function */ |
|
- | 3061 | /* doesn't always correspond to the internal indices used within */ |
|
- | 3062 | /* the file. This is done to ensure that value~0 always corresponds */ |
|
- | 3063 | /* to the `missing glyph'. */ |
|
- | 3064 | /* */ |
|
- | 3065 | FT_EXPORT( FT_UInt ) |
|
- | 3066 | FT_Get_Char_Index( FT_Face face, |
|
- | 3067 | FT_ULong charcode ); |
|
- | 3068 | ||
- | 3069 | ||
- | 3070 | /*************************************************************************/ |
|
- | 3071 | /* */ |
|
- | 3072 | /* |
|
- | 3073 | /* FT_Get_First_Char */ |
|
- | 3074 | /* */ |
|
- | 3075 | /* |
|
- | 3076 | /* This function is used to return the first character code in the */ |
|
- | 3077 | /* current charmap of a given face. It also returns the */ |
|
- | 3078 | /* corresponding glyph index. */ |
|
- | 3079 | /* */ |
|
- | 3080 | /* */ |
|
- | 3081 | /* face :: A handle to the source face object. */ |
|
- | 3082 | /* */ |
|
- | 3083 | /* |
|
- | 3084 | /* agindex :: Glyph index of first character code. 0~if charmap is */ |
|
- | 3085 | /* empty. */ |
|
- | 3086 | /* */ |
|
- | 3087 | /* |
|
- | 3088 | /* The charmap's first character code. */ |
|
- | 3089 | /* */ |
|
- | 3090 | /* |
|
- | 3091 | /* You should use this function with @FT_Get_Next_Char to be able to */ |
|
- | 3092 | /* parse all character codes available in a given charmap. The code */ |
|
- | 3093 | /* should look like this: */ |
|
- | 3094 | /* */ |
|
- | 3095 | /* { */ |
|
- | 3096 | /* FT_ULong charcode; */ |
|
- | 3097 | /* FT_UInt gindex; */ |
|
- | 3098 | /* */ |
|
- | 3099 | /* */ |
|
- | 3100 | /* charcode = FT_Get_First_Char( face, &gindex ); */ |
|
- | 3101 | /* while ( gindex != 0 ) */ |
|
- | 3102 | /* { */ |
|
- | 3103 | /* ... do something with (charcode,gindex) pair ... */ |
|
Line 771... | Line -... | ||
771 | - | ||
Line -... | Line 3104... | ||
- | 3104 | /* */ |
|
- | 3105 | /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */ |
|
- | 3106 | /* } */ |
|
772 | 3107 | /* } */ |
|
- | 3108 | /* */ |
|
- | 3109 | /* Note that `*agindex' is set to~0 if the charmap is empty. The */ |
|
773 | 3110 | /* result itself can be~0 in two cases: if the charmap is empty or */ |
|
- | 3111 | /* if the value~0 is the first valid character code. */ |
|
- | 3112 | /* */ |
|
- | 3113 | FT_EXPORT( FT_ULong ) |
|
- | 3114 | FT_Get_First_Char( FT_Face face, |
|
- | 3115 | FT_UInt *agindex ); |
|
- | 3116 | ||
- | 3117 | ||
774 | /* ----------------------- instance management -------------------- */ |
3118 | /*************************************************************************/ |
- | 3119 | /* */ |
|
- | 3120 | /* |
|
- | 3121 | /* FT_Get_Next_Char */ |
|
775 | 3122 | /* */ |
|
- | 3123 | /* |
|
- | 3124 | /* This function is used to return the next character code in the */ |
|
Line -... | Line 3125... | ||
- | 3125 | /* current charmap of a given face following the value `char_code', */ |
|
- | 3126 | /* as well as the corresponding glyph index. */ |
|
- | 3127 | /* */ |
|
- | 3128 | /* */ |
|
- | 3129 | /* face :: A handle to the source face object. */ |
|
- | 3130 | /* char_code :: The starting character code. */ |
|
- | 3131 | /* */ |
|
- | 3132 | /* |
|
- | 3133 | /* agindex :: Glyph index of next character code. 0~if charmap */ |
|
- | 3134 | /* is empty. */ |
|
- | 3135 | /* */ |
|
- | 3136 | /* |
|
- | 3137 | /* The charmap's next character code. */ |
|
- | 3138 | /* */ |
|
- | 3139 | /* |
|
- | 3140 | /* You should use this function with @FT_Get_First_Char to walk */ |
|
- | 3141 | /* over all character codes available in a given charmap. See the */ |
|
- | 3142 | /* note for this function for a simple code example. */ |
|
- | 3143 | /* */ |
|
- | 3144 | /* Note that `*agindex' is set to~0 when there are no more codes in */ |
|
- | 3145 | /* the charmap. */ |
|
- | 3146 | /* */ |
|
- | 3147 | FT_EXPORT( FT_ULong ) |
|
- | 3148 | FT_Get_Next_Char( FT_Face face, |
|
- | 3149 | FT_ULong char_code, |
|
- | 3150 | FT_UInt *agindex ); |
|
- | 3151 | ||
776 | /* Open a new font instance and returns an instance handle */ |
3152 | |
- | 3153 | /*************************************************************************/ |
|
- | 3154 | /* */ |
|
- | 3155 | /* |
|
- | 3156 | /* FT_Get_Name_Index */ |
|
- | 3157 | /* */ |
|
- | 3158 | /* |
|
- | 3159 | /* Return the glyph index of a given glyph name. This function uses */ |
|
- | 3160 | /* driver specific objects to do the translation. */ |
|
- | 3161 | /* */ |
|
Line 777... | Line -... | ||
777 | /* for it in `*instance'. */ |
- | |
778 | - | ||
779 | EXPORT_DEF |
- | |
780 | TT_Error TT_New_Instance( TT_Face face, |
- | |
Line -... | Line 3162... | ||
- | 3162 | /* */ |
|
- | 3163 | /* face :: A handle to the source face object. */ |
|
- | 3164 | /* */ |
|
- | 3165 | /* glyph_name :: The glyph name. */ |
|
- | 3166 | /* */ |
|
- | 3167 | /* |
|
- | 3168 | /* The glyph index. 0~means `undefined character code'. */ |
|
- | 3169 | /* */ |
|
- | 3170 | FT_EXPORT( FT_UInt ) |
|
- | 3171 | FT_Get_Name_Index( FT_Face face, |
|
- | 3172 | FT_String* glyph_name ); |
|
- | 3173 | ||
- | 3174 | ||
- | 3175 | /************************************************************************* |
|
- | 3176 | * |
|
- | 3177 | * @macro: |
|
- | 3178 | * FT_SUBGLYPH_FLAG_XXX |
|
- | 3179 | * |
|
- | 3180 | * @description: |
|
- | 3181 | * A list of constants used to describe subglyphs. Please refer to the |
|
- | 3182 | * TrueType specification for the meaning of the various flags. |
|
- | 3183 | * |
|
- | 3184 | * @values: |
|
- | 3185 | * FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS :: |
|
- | 3186 | * FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES :: |
|
- | 3187 | * FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID :: |
|
- | 3188 | * FT_SUBGLYPH_FLAG_SCALE :: |
|
- | 3189 | * FT_SUBGLYPH_FLAG_XY_SCALE :: |
|
- | 3190 | * FT_SUBGLYPH_FLAG_2X2 :: |
|
- | 3191 | * FT_SUBGLYPH_FLAG_USE_MY_METRICS :: |
|
- | 3192 | * |
|
- | 3193 | */ |
|
- | 3194 | #define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 |
|
- | 3195 | #define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 |
|
- | 3196 | #define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 |
|
- | 3197 | #define FT_SUBGLYPH_FLAG_SCALE 8 |
|
- | 3198 | #define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 |
|
- | 3199 | #define FT_SUBGLYPH_FLAG_2X2 0x80 |
|
- | 3200 | #define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 |
|
- | 3201 | ||
- | 3202 | ||
- | 3203 | /************************************************************************* |
|
- | 3204 | * |
|
Line 781... | Line -... | ||
781 | TT_Instance* instance ); |
- | |
782 | - | ||
783 | - | ||
Line -... | Line 3205... | ||
- | 3205 | * @func: |
|
- | 3206 | * FT_Get_SubGlyph_Info |
|
- | 3207 | * |
|
- | 3208 | * @description: |
|
- | 3209 | * Retrieve a description of a given subglyph. Only use it if |
|
- | 3210 | * `glyph->format' is @FT_GLYPH_FORMAT_COMPOSITE; an error is |
|
- | 3211 | * returned otherwise. |
|
- | 3212 | * |
|
- | 3213 | * @input: |
|
- | 3214 | * glyph :: |
|
- | 3215 | * The source glyph slot. |
|
- | 3216 | * |
|
- | 3217 | * sub_index :: |
|
- | 3218 | * The index of the subglyph. Must be less than |
|
- | 3219 | * `glyph->num_subglyphs'. |
|
- | 3220 | * |
|
- | 3221 | * @output: |
|
- | 3222 | * p_index :: |
|
- | 3223 | * The glyph index of the subglyph. |
|
- | 3224 | * |
|
- | 3225 | * p_flags :: |
|
- | 3226 | * The subglyph flags, see @FT_SUBGLYPH_FLAG_XXX. |
|
- | 3227 | * |
|
- | 3228 | * p_arg1 :: |
|
- | 3229 | * The subglyph's first argument (if any). |
|
- | 3230 | * |
|
- | 3231 | * p_arg2 :: |
|
- | 3232 | * The subglyph's second argument (if any). |
|
- | 3233 | * |
|
- | 3234 | * p_transform :: |
|
784 | /* Set device resolution for a given instance. The values are */ |
3235 | * The subglyph transformation (if any). |
785 | /* given in dpi (Dots Per Inch). Default is 96 in both directions. */ |
3236 | * |
786 | 3237 | * @return: |
|
- | 3238 | * FreeType error code. 0~means success. |
|
Line -... | Line 3239... | ||
- | 3239 | * |
|
- | 3240 | * @note: |
|
- | 3241 | * The values of `*p_arg1', `*p_arg2', and `*p_transform' must be |
|
- | 3242 | * interpreted depending on the flags returned in `*p_flags'. See the |
|
- | 3243 | * TrueType specification for details. |
|
- | 3244 | * |
|
- | 3245 | */ |
|
- | 3246 | FT_EXPORT( FT_Error ) |
|
- | 3247 | FT_Get_SubGlyph_Info( FT_GlyphSlot glyph, |
|
- | 3248 | FT_UInt sub_index, |
|
- | 3249 | FT_Int *p_index, |
|
- | 3250 | FT_UInt *p_flags, |
|
- | 3251 | FT_Int *p_arg1, |
|
- | 3252 | FT_Int *p_arg2, |
|
787 | EXPORT_DEF |
3253 | FT_Matrix *p_transform ); |
- | 3254 | ||
- | 3255 | ||
- | 3256 | /*************************************************************************/ |
|
- | 3257 | /* */ |
|
- | 3258 | /* |
|
- | 3259 | /* FT_FSTYPE_XXX */ |
|
- | 3260 | /* */ |
|
- | 3261 | /* |
|
- | 3262 | /* A list of bit flags used in the `fsType' field of the OS/2 table */ |
|
- | 3263 | /* in a TrueType or OpenType font and the `FSType' entry in a */ |
|
- | 3264 | /* PostScript font. These bit flags are returned by */ |
|
- | 3265 | /* @FT_Get_FSType_Flags; they inform client applications of embedding */ |
|
Line 788... | Line -... | ||
788 | TT_Error TT_Set_Instance_Resolutions( TT_Instance instance, |
- | |
789 | TT_UShort xResolution, |
- | |
790 | TT_UShort yResolution ); |
- | |
Line -... | Line 3266... | ||
- | 3266 | /* and subsetting restrictions associated with a font. */ |
|
- | 3267 | /* */ |
|
- | 3268 | /* See http://www.adobe.com/devnet/acrobat/pdfs/FontPolicies.pdf for */ |
|
- | 3269 | /* more details. */ |
|
- | 3270 | /* */ |
|
- | 3271 | /* |
|
- | 3272 | /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */ |
|
- | 3273 | /* Fonts with no fsType bit set may be embedded and permanently */ |
|
- | 3274 | /* installed on the remote system by an application. */ |
|
- | 3275 | /* */ |
|
- | 3276 | /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */ |
|
- | 3277 | /* Fonts that have only this bit set must not be modified, embedded */ |
|
- | 3278 | /* or exchanged in any manner without first obtaining permission of */ |
|
- | 3279 | /* the font software copyright owner. */ |
|
- | 3280 | /* */ |
|
- | 3281 | /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING :: */ |
|
- | 3282 | /* If this bit is set, the font may be embedded and temporarily */ |
|
- | 3283 | /* loaded on the remote system. Documents containing Preview & */ |
|
- | 3284 | /* Print fonts must be opened `read-only'; no edits can be applied */ |
|
- | 3285 | /* to the document. */ |
|
- | 3286 | /* */ |
|
- | 3287 | /* FT_FSTYPE_EDITABLE_EMBEDDING :: */ |
|
- | 3288 | /* If this bit is set, the font may be embedded but must only be */ |
|
- | 3289 | /* installed temporarily on other systems. In contrast to Preview */ |
|
- | 3290 | /* & Print fonts, documents containing editable fonts may be opened */ |
|
- | 3291 | /* for reading, editing is permitted, and changes may be saved. */ |
|
- | 3292 | /* */ |
|
- | 3293 | /* FT_FSTYPE_NO_SUBSETTING :: */ |
|
- | 3294 | /* If this bit is set, the font may not be subsetted prior to */ |
|
- | 3295 | /* embedding. */ |
|
- | 3296 | /* */ |
|
- | 3297 | /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */ |
|
Line 791... | Line -... | ||
791 | - | ||
Line -... | Line 3298... | ||
- | 3298 | /* If this bit is set, only bitmaps contained in the font may be */ |
|
- | 3299 | /* embedded; no outline data may be embedded. If there are no */ |
|
- | 3300 | /* bitmaps available in the font, then the font is unembeddable. */ |
|
792 | 3301 | /* */ |
|
- | 3302 | /* |
|
- | 3303 | /* While the fsType flags can indicate that a font may be embedded, a */ |
|
- | 3304 | /* license with the font vendor may be separately required to use the */ |
|
- | 3305 | /* font in this way. */ |
|
- | 3306 | /* */ |
|
- | 3307 | #define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 |
|
- | 3308 | #define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 |
|
- | 3309 | #define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 |
|
- | 3310 | #define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 |
|
- | 3311 | #define FT_FSTYPE_NO_SUBSETTING 0x0100 |
|
- | 3312 | #define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 |
|
- | 3313 | ||
- | 3314 | ||
- | 3315 | /*************************************************************************/ |
|
- | 3316 | /* */ |
|
- | 3317 | /* |
|
- | 3318 | /* FT_Get_FSType_Flags */ |
|
- | 3319 | /* */ |
|
- | 3320 | /* |
|
793 | /* Set the pointsize for a given instance. Default is 10pt. */ |
3321 | /* Return the fsType flags for a font. */ |
- | 3322 | /* */ |
|
- | 3323 | /* */ |
|
- | 3324 | /* face :: A handle to the source face object. */ |
|
- | 3325 | /* */ |
|
794 | 3326 | /* |
|
- | 3327 | /* The fsType flags, @FT_FSTYPE_XXX. */ |
|
- | 3328 | /* */ |
|
795 | EXPORT_DEF |
3329 | /* |
Line -... | Line 3330... | ||
- | 3330 | /* Use this function rather than directly reading the `fs_type' field */ |
|
- | 3331 | /* in the @PS_FontInfoRec structure which is only guaranteed to */ |
|
- | 3332 | /* return the correct results for Type~1 fonts. */ |
|
- | 3333 | /* */ |
|
- | 3334 | FT_EXPORT( FT_UShort ) |
|
- | 3335 | FT_Get_FSType_Flags( FT_Face face ); |
|
- | 3336 | ||
- | 3337 | ||
- | 3338 | /*************************************************************************/ |
|
- | 3339 | /* */ |
|
- | 3340 | /* |
|
- | 3341 | /* glyph_variants */ |
|
- | 3342 | /* */ |
|
796 | TT_Error TT_Set_Instance_CharSize( TT_Instance instance, |
3343 | /* |
- | 3344 | /* Glyph Variants */ |
|
- | 3345 | /* */ |
|
- | 3346 | /* |
|
- | 3347 | /* The FreeType~2 interface to Unicode Ideographic Variation */ |
|
- | 3348 | /* Sequences (IVS), using the SFNT cmap format~14. */ |
|
- | 3349 | /* */ |
|
- | 3350 | /* |
|
- | 3351 | /* Many CJK characters have variant forms. They are a sort of grey */ |
|
- | 3352 | /* area somewhere between being totally irrelevant and semantically */ |
|
- | 3353 | /* distinct; for this reason, the Unicode consortium decided to */ |
|
- | 3354 | /* introduce Ideographic Variation Sequences (IVS), consisting of a */ |
|
- | 3355 | /* Unicode base character and one of 240 variant selectors */ |
|
- | 3356 | /* (U+E0100-U+E01EF), instead of further extending the already huge */ |
|
Line 797... | Line -... | ||
797 | TT_F26Dot6 charSize ); |
- | |
798 | - | ||
799 | EXPORT_DEF |
- | |
800 | TT_Error TT_Set_Instance_CharSizes( TT_Instance instance, |
- | |
Line -... | Line 3357... | ||
- | 3357 | /* code range for CJK characters. */ |
|
- | 3358 | /* */ |
|
- | 3359 | /* An IVS is registered and unique; for further details please refer */ |
|
- | 3360 | /* to Unicode Technical Report #37, the Ideographic Variation */ |
|
- | 3361 | /* Database. To date (October 2007), the character with the most */ |
|
- | 3362 | /* variants is U+908A, having 8~such IVS. */ |
|
- | 3363 | /* */ |
|
- | 3364 | /* Adobe and MS decided to support IVS with a new cmap subtable */ |
|
- | 3365 | /* (format~14). It is an odd subtable because it is not a mapping of */ |
|
- | 3366 | /* input code points to glyphs, but contains lists of all variants */ |
|
- | 3367 | /* supported by the font. */ |
|
- | 3368 | /* */ |
|
- | 3369 | /* A variant may be either `default' or `non-default'. A default */ |
|
- | 3370 | /* variant is the one you will get for that code point if you look it */ |
|
- | 3371 | /* up in the standard Unicode cmap. A non-default variant is a */ |
|
- | 3372 | /* different glyph. */ |
|
- | 3373 | /* */ |
|
- | 3374 | /*************************************************************************/ |
|
- | 3375 | ||
- | 3376 | ||
- | 3377 | /*************************************************************************/ |
|
- | 3378 | /* */ |
|
- | 3379 | /* |
|
- | 3380 | /* FT_Face_GetCharVariantIndex */ |
|
- | 3381 | /* */ |
|
- | 3382 | /* |
|
- | 3383 | /* Return the glyph index of a given character code as modified by */ |
|
Line 801... | Line -... | ||
801 | TT_F26Dot6 charWidth, |
- | |
Line 802... | Line 3384... | ||
802 | TT_F26Dot6 charHeight ); |
3384 | /* the variation selector. */ |
803 | - | ||
804 | #define TT_Set_Instance_PointSize( ins, ptsize ) \ |
- | |
805 | TT_Set_Instance_CharSize( ins, ptsize*64L ) |
- | |
Line -... | Line 3385... | ||
- | 3385 | /* */ |
|
- | 3386 | /* */ |
|
Line -... | Line 3387... | ||
- | 3387 | /* face :: */ |
|
- | 3388 | /* A handle to the source face object. */ |
|
- | 3389 | /* */ |
|
- | 3390 | /* charcode :: */ |
|
- | 3391 | /* The character code point in Unicode. */ |
|
- | 3392 | /* */ |
|
- | 3393 | /* variantSelector :: */ |
|
- | 3394 | /* The Unicode code point of the variation selector. */ |
|
806 | 3395 | /* */ |
|
807 | EXPORT_DEF |
3396 | /* |
- | 3397 | /* The glyph index. 0~means either `undefined character code', or */ |
|
- | 3398 | /* `undefined selector code', or `no variation selector cmap */ |
|
- | 3399 | /* subtable', or `current CharMap is not Unicode'. */ |
|
- | 3400 | /* */ |
|
- | 3401 | /* |
|
- | 3402 | /* If you use FreeType to manipulate the contents of font files */ |
|
- | 3403 | /* directly, be aware that the glyph index returned by this function */ |
|
- | 3404 | /* doesn't always correspond to the internal indices used within */ |
|
- | 3405 | /* the file. This is done to ensure that value~0 always corresponds */ |
|
- | 3406 | /* to the `missing glyph'. */ |
|
- | 3407 | /* */ |
|
- | 3408 | /* This function is only meaningful if */ |
|
- | 3409 | /* a) the font has a variation selector cmap sub table, */ |
|
- | 3410 | /* and */ |
|
- | 3411 | /* b) the current charmap has a Unicode encoding. */ |
|
- | 3412 | /* */ |
|
- | 3413 | /* |
|
- | 3414 | /* 2.3.6 */ |
|
- | 3415 | /* */ |
|
- | 3416 | FT_EXPORT( FT_UInt ) |
|
- | 3417 | FT_Face_GetCharVariantIndex( FT_Face face, |
|
- | 3418 | FT_ULong charcode, |
|
- | 3419 | FT_ULong variantSelector ); |
|
Line 808... | Line 3420... | ||
808 | TT_Error TT_Set_Instance_PixelSizes( TT_Instance instance, |
3420 | |
809 | TT_UShort pixelWidth, |
3421 | |
810 | TT_UShort pixelHeight, |
- | |
Line -... | Line 3422... | ||
- | 3422 | /*************************************************************************/ |
|
- | 3423 | /* */ |
|
- | 3424 | /* |
|
- | 3425 | /* FT_Face_GetCharVariantIsDefault */ |
|
- | 3426 | /* */ |
|
- | 3427 | /* |
|
- | 3428 | /* Check whether this variant of this Unicode character is the one to */ |
|
Line 811... | Line -... | ||
811 | TT_F26Dot6 pointSize ); |
- | |
Line 812... | Line -... | ||
812 | - | ||
813 | 3429 | /* be found in the `cmap'. */ |
|
814 | /* This function has been deprecated! Do not use it, as it */ |
3430 | /* */ |
- | 3431 | /* */ |
|
815 | /* doesn't work reliably. You can perfectly control hinting */ |
3432 | /* face :: */ |
816 | /* yourself when loading glyphs, then apply transforms as usual. */ |
3433 | /* A handle to the source face object. */ |
- | 3434 | /* */ |
|
817 | 3435 | /* charcode :: */ |
|
- | 3436 | /* The character codepoint in Unicode. */ |
|
818 | EXPORT_DEF |
3437 | /* */ |
819 | TT_Error TT_Set_Instance_Transform_Flags( TT_Instance instance, |
3438 | /* variantSelector :: */ |
- | 3439 | /* The Unicode codepoint of the variation selector. */ |
|
- | 3440 | /* */ |
|
820 | TT_Bool rotated, |
3441 | /* |
821 | TT_Bool stretched ); |
3442 | /* 1~if found in the standard (Unicode) cmap, 0~if found in the */ |
822 | 3443 | /* variation selector cmap, or -1 if it is not a variant. */ |
|
- | 3444 | /* */ |
|
- | 3445 | /* |
|
- | 3446 | /* This function is only meaningful if the font has a variation */ |
|
- | 3447 | /* selector cmap subtable. */ |
|
- | 3448 | /* */ |
|
- | 3449 | /* |
|
- | 3450 | /* 2.3.6 */ |
|
- | 3451 | /* */ |
|
- | 3452 | FT_EXPORT( FT_Int ) |
|
- | 3453 | FT_Face_GetCharVariantIsDefault( FT_Face face, |
|
- | 3454 | FT_ULong charcode, |
|
Line 823... | Line -... | ||
823 | - | ||
824 | /* Return instance metrics in `metrics'. */ |
- | |
Line -... | Line 3455... | ||
- | 3455 | FT_ULong variantSelector ); |
|
- | 3456 | ||
- | 3457 | ||
- | 3458 | /*************************************************************************/ |
|
- | 3459 | /* */ |
|
- | 3460 | /* |
|
- | 3461 | /* FT_Face_GetVariantSelectors */ |
|
- | 3462 | /* */ |
|
- | 3463 | /* |
|
- | 3464 | /* Return a zero-terminated list of Unicode variant selectors found */ |
|
- | 3465 | /* in the font. */ |
|
- | 3466 | /* */ |
|
- | 3467 | /* */ |
|
- | 3468 | /* face :: */ |
|
- | 3469 | /* A handle to the source face object. */ |
|
- | 3470 | /* */ |
|
Line 825... | Line -... | ||
825 | - | ||
826 | EXPORT_DEF |
- | |
Line -... | Line 3471... | ||
- | 3471 | /* |
|
- | 3472 | /* A pointer to an array of selector code points, or NULL if there is */ |
|
- | 3473 | /* no valid variant selector cmap subtable. */ |
|
827 | TT_Error TT_Get_Instance_Metrics( TT_Instance instance, |
3474 | /* */ |
- | 3475 | /* |
|
- | 3476 | /* The last item in the array is~0; the array is owned by the */ |
|
828 | TT_Instance_Metrics* metrics ); |
3477 | /* @FT_Face object but can be overwritten or released on the next */ |
- | 3478 | /* call to a FreeType function. */ |
|
829 | 3479 | /* */ |
|
830 | 3480 | /* |
|
- | 3481 | /* 2.3.6 */ |
|
831 | /* Set an instance's generic pointer. */ |
3482 | /* */ |
- | 3483 | FT_EXPORT( FT_UInt32* ) |
|
- | 3484 | FT_Face_GetVariantSelectors( FT_Face face ); |
|
- | 3485 | ||
- | 3486 | ||
- | 3487 | /*************************************************************************/ |
|
Line -... | Line 3488... | ||
- | 3488 | /* */ |
|
- | 3489 | /* |
|
- | 3490 | /* FT_Face_GetVariantsOfChar */ |
|
832 | 3491 | /* */ |
|
- | 3492 | /* |
|
- | 3493 | /* Return a zero-terminated list of Unicode variant selectors found */ |
|
833 | EXPORT_DEF |
3494 | /* for the specified character code. */ |
834 | TT_Error TT_Set_Instance_Pointer( TT_Instance instance, |
3495 | /* */ |
- | 3496 | /* */ |
|
- | 3497 | /* face :: */ |
|
- | 3498 | /* A handle to the source face object. */ |
|
- | 3499 | /* */ |
|
835 | void* data ); |
3500 | /* charcode :: */ |
836 | 3501 | /* The character codepoint in Unicode. */ |
|
- | 3502 | /* */ |
|
- | 3503 | /* |
|
- | 3504 | /* A pointer to an array of variant selector code points which are */ |
|
Line 837... | Line -... | ||
837 | - | ||
838 | /* Get an instance's generic pointer. */ |
- | |
839 | - | ||
840 | EXPORT_DEF |
- | |
Line -... | Line 3505... | ||
- | 3505 | /* active for the given character, or NULL if the corresponding list */ |
|
- | 3506 | /* is empty. */ |
|
- | 3507 | /* */ |
|
- | 3508 | /* |
|
- | 3509 | /* The last item in the array is~0; the array is owned by the */ |
|
- | 3510 | /* @FT_Face object but can be overwritten or released on the next */ |
|
- | 3511 | /* call to a FreeType function. */ |
|
- | 3512 | /* */ |
|
- | 3513 | /* |
|
- | 3514 | /* 2.3.6 */ |
|
- | 3515 | /* */ |
|
- | 3516 | FT_EXPORT( FT_UInt32* ) |
|
- | 3517 | FT_Face_GetVariantsOfChar( FT_Face face, |
|
- | 3518 | FT_ULong charcode ); |
|
- | 3519 | ||
- | 3520 | ||
- | 3521 | /*************************************************************************/ |
|
- | 3522 | /* */ |
|
- | 3523 | /* |
|
- | 3524 | /* FT_Face_GetCharsOfVariant */ |
|
Line 841... | Line -... | ||
841 | void* TT_Get_Instance_Pointer( TT_Instance instance ); |
- | |
842 | - | ||
843 | - | ||
844 | /* Close a given instance object, destroying all associated data. */ |
- | |
Line -... | Line 3525... | ||
- | 3525 | /* */ |
|
- | 3526 | /* |
|
- | 3527 | /* Return a zero-terminated list of Unicode character codes found for */ |
|
- | 3528 | /* the specified variant selector. */ |
|
- | 3529 | /* */ |
|
- | 3530 | /* */ |
|
- | 3531 | /* face :: */ |
|
- | 3532 | /* A handle to the source face object. */ |
|
- | 3533 | /* */ |
|
845 | 3534 | /* variantSelector :: */ |
|
- | 3535 | /* The variant selector code point in Unicode. */ |
|
- | 3536 | /* */ |
|
- | 3537 | /* |
|
846 | EXPORT_DEF |
3538 | /* A list of all the code points which are specified by this selector */ |
- | 3539 | /* (both default and non-default codes are returned) or NULL if there */ |
|
847 | TT_Error TT_Done_Instance( TT_Instance instance ); |
3540 | /* is no valid cmap or the variant selector is invalid. */ |
- | 3541 | /* */ |
|
Line -... | Line 3542... | ||
- | 3542 | /* |
|
- | 3543 | /* The last item in the array is~0; the array is owned by the */ |
|
- | 3544 | /* @FT_Face object but can be overwritten or released on the next */ |
|
- | 3545 | /* call to a FreeType function. */ |
|
- | 3546 | /* */ |
|
- | 3547 | /* |
|
- | 3548 | /* 2.3.6 */ |
|
- | 3549 | /* */ |
|
- | 3550 | FT_EXPORT( FT_UInt32* ) |
|
- | 3551 | FT_Face_GetCharsOfVariant( FT_Face face, |
|
- | 3552 | FT_ULong variantSelector ); |
|
- | 3553 | ||
- | 3554 | ||
- | 3555 | /*************************************************************************/ |
|
- | 3556 | /* */ |
|
- | 3557 | /* |
|
- | 3558 | /* computations */ |
|
- | 3559 | /* */ |
|
- | 3560 | /* |
|
- | 3561 | /* Computations */ |
|
- | 3562 | /* */ |
|
- | 3563 | /* |
|
- | 3564 | /* Crunching fixed numbers and vectors. */ |
|
Line 848... | Line -... | ||
848 | - | ||
Line 849... | Line -... | ||
849 | - | ||
850 | 3565 | /* */ |
|
851 | /* ----------------------- glyph management ----------------------- */ |
3566 | /* |
852 | 3567 | /* This section contains various functions used to perform */ |
|
- | 3568 | /* computations on 16.16 fixed-float numbers or 2d vectors. */ |
|
853 | /* Create a new glyph object related to the given `face'. */ |
3569 | /* */ |
- | 3570 | /* |
|
854 | 3571 | /* FT_MulDiv */ |
|
- | 3572 | /* FT_MulFix */ |
|
- | 3573 | /* FT_DivFix */ |
|
855 | EXPORT_DEF |
3574 | /* FT_RoundFix */ |
856 | TT_Error TT_New_Glyph( TT_Face face, |
3575 | /* FT_CeilFix */ |
- | 3576 | /* FT_FloorFix */ |
|
- | 3577 | /* FT_Vector_Transform */ |
|
- | 3578 | /* FT_Matrix_Multiply */ |
|
- | 3579 | /* FT_Matrix_Invert */ |
|
- | 3580 | /* */ |
|
- | 3581 | /*************************************************************************/ |
|
857 | TT_Glyph* glyph ); |
3582 | |
- | 3583 | ||
- | 3584 | /*************************************************************************/ |
|
- | 3585 | /* */ |
|
- | 3586 | /* |
|
- | 3587 | /* FT_MulDiv */ |
|
- | 3588 | /* */ |
|
- | 3589 | /* |
|
- | 3590 | /* A very simple function used to perform the computation `(a*b)/c' */ |
|
- | 3591 | /* with maximal accuracy (it uses a 64-bit intermediate integer */ |
|
858 | 3592 | /* whenever necessary). */ |
|
859 | - | ||
- | 3593 | /* */ |
|
860 | /* Discard (and destroy) a given glyph object. */ |
3594 | /* This function isn't necessarily as fast as some processor specific */ |
- | 3595 | /* operations, but is at least completely portable. */ |
|
- | 3596 | /* */ |
|
- | 3597 | /* */ |
|
861 | 3598 | /* a :: The first multiplier. */ |
|
862 | EXPORT_DEF |
- | |
Line 863... | Line -... | ||
863 | TT_Error TT_Done_Glyph( TT_Glyph glyph ); |
- | |
864 | - | ||
Line -... | Line 3599... | ||
- | 3599 | /* b :: The second multiplier. */ |
|
- | 3600 | /* c :: The divisor. */ |
|
- | 3601 | /* */ |
|
- | 3602 | /* |
|
- | 3603 | /* The result of `(a*b)/c'. This function never traps when trying to */ |
|
- | 3604 | /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ |
|
865 | 3605 | /* on the signs of `a' and `b'. */ |
|
- | 3606 | /* */ |
|
- | 3607 | FT_EXPORT( FT_Long ) |
|
- | 3608 | FT_MulDiv( FT_Long a, |
|
- | 3609 | FT_Long b, |
|
- | 3610 | FT_Long c ); |
|
- | 3611 | ||
- | 3612 | ||
- | 3613 | /* */ |
|
- | 3614 | ||
- | 3615 | /* The following #if 0 ... #endif is for the documentation formatter, */ |
|
- | 3616 | /* hiding the internal `FT_MULFIX_INLINED' macro. */ |
|
866 | #define TTLOAD_SCALE_GLYPH 1 |
3617 | |
- | 3618 | #if 0 |
|
- | 3619 | /*************************************************************************/ |
|
867 | #define TTLOAD_HINT_GLYPH 2 |
3620 | /* */ |
- | 3621 | /* |
|
868 | #define TTLOAD_PEDANTIC 128 |
3622 | /* FT_MulFix */ |
869 | #define TTLOAD_IGNORE_GLOBAL_ADVANCE_WIDTH 256 |
3623 | /* */ |
870 | 3624 | /* |
|
871 | #define TTLOAD_DEFAULT (TTLOAD_SCALE_GLYPH | TTLOAD_HINT_GLYPH) |
3625 | /* A very simple function used to perform the computation */ |
- | 3626 | /* `(a*b)/0x10000' with maximal accuracy. Most of the time this is */ |
|
- | 3627 | /* used to multiply a given value by a 16.16 fixed float factor. */ |
|
Line -... | Line 3628... | ||
- | 3628 | /* */ |
|
- | 3629 | /* */ |
|
- | 3630 | /* a :: The first multiplier. */ |
|
- | 3631 | /* b :: The second multiplier. Use a 16.16 factor here whenever */ |
|
- | 3632 | /* possible (see note below). */ |
|
- | 3633 | /* */ |
|
872 | 3634 | /* |
|
873 | 3635 | /* The result of `(a*b)/0x10000'. */ |
|
- | 3636 | /* */ |
|
- | 3637 | /* |
|
- | 3638 | /* This function has been optimized for the case where the absolute */ |
|
874 | /* Load and process (scale/transform and hint) a glyph from the */ |
3639 | /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */ |
- | 3640 | /* As this happens mainly when scaling from notional units to */ |
|
875 | /* given `instance'. The glyph and instance handles must be */ |
3641 | /* fractional pixels in FreeType, it resulted in noticeable speed */ |
876 | /* related to the same face object. The glyph index can be */ |
3642 | /* improvements between versions 2.x and 1.x. */ |
- | 3643 | /* */ |
|
- | 3644 | /* As a conclusion, always try to place a 16.16 factor as the */ |
|
877 | /* computed with a call to TT_Char_Index(). */ |
3645 | /* _second_ argument of this function; this can make a great */ |
- | 3646 | /* difference. */ |
|
- | 3647 | /* */ |
|
- | 3648 | FT_EXPORT( FT_Long ) |
|
- | 3649 | FT_MulFix( FT_Long a, |
|
- | 3650 | FT_Long b ); |
|
878 | /* */ |
3651 | |
- | 3652 | /* */ |
|
- | 3653 | #endif |
|
- | 3654 | ||
- | 3655 | #ifdef FT_MULFIX_INLINED |
|
- | 3656 | #define FT_MulFix( a, b ) FT_MULFIX_INLINED( a, b ) |
|
Line 879... | Line 3657... | ||
879 | /* The 'load_flags' argument is a combination of the macros */ |
3657 | #else |
880 | /* TTLOAD_SCALE_GLYPH and TTLOAD_HINT_GLYPH. Hinting will be */ |
- | |
881 | /* applied only if the scaling is selected. */ |
- | |
882 | /* */ |
- | |
883 | /* If scaling is off (i.e., load_flags = 0), the returned */ |
- | |
Line 884... | Line 3658... | ||
884 | /* outlines are in EM square coordinates (also called FUnits), */ |
3658 | FT_EXPORT( FT_Long ) |
885 | /* extracted directly from the font with no hinting. Other */ |
- | |
886 | /* glyph metrics are also in FUnits. */ |
- | |
Line 887... | Line 3659... | ||
887 | /* */ |
3659 | FT_MulFix( FT_Long a, |
Line 888... | Line 3660... | ||
888 | /* If scaling is on, the returned outlines are in fractional */ |
3660 | FT_Long b ); |