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1 /***************************************************************************/ | 1 /***************************************************************************/ |
2 /* */ | 2 /* */ |
3 /* aflatin.h */ | 3 /* aflatin.h */ |
4 /* */ | 4 /* */ |
5 /* Auto-fitter hinting routines for latin script (specification). */ | 5 /* Auto-fitter hinting routines for latin script (specification). */ |
6 /* */ | 6 /* */ |
7 /* Copyright 2003-2007, 2009, 2011 by */ | 7 /* Copyright 2003-2007, 2009, 2011-2012 by */ |
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
9 /* */ | 9 /* */ |
10 /* This file is part of the FreeType project, and may only be used, */ | 10 /* This file is part of the FreeType project, and may only be used, */ |
11 /* modified, and distributed under the terms of the FreeType project */ | 11 /* modified, and distributed under the terms of the FreeType project */ |
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
13 /* this file you indicate that you have read the license and */ | 13 /* this file you indicate that you have read the license and */ |
14 /* understand and accept it fully. */ | 14 /* understand and accept it fully. */ |
15 /* */ | 15 /* */ |
16 /***************************************************************************/ | 16 /***************************************************************************/ |
17 | 17 |
18 | 18 |
19 #ifndef __AFLATIN_H__ | 19 #ifndef __AFLATIN_H__ |
20 #define __AFLATIN_H__ | 20 #define __AFLATIN_H__ |
21 | 21 |
22 #include "afhints.h" | 22 #include "afhints.h" |
23 | 23 |
24 | 24 |
25 FT_BEGIN_HEADER | 25 FT_BEGIN_HEADER |
26 | 26 |
27 | 27 |
28 /* the latin-specific script class */ | 28 /* the latin-specific script class */ |
29 | 29 |
30 AF_DECLARE_SCRIPT_CLASS(af_latin_script_class) | 30 AF_DECLARE_SCRIPT_CLASS( af_latin_script_class ) |
31 | 31 |
32 | 32 |
33 /* constants are given with units_per_em == 2048 in mind */ | 33 /* constants are given with units_per_em == 2048 in mind */ |
34 #define AF_LATIN_CONSTANT( metrics, c ) \ | 34 #define AF_LATIN_CONSTANT( metrics, c ) \ |
35 ( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 ) | 35 ( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 ) |
36 | 36 |
37 | 37 |
38 /*************************************************************************/ | 38 /*************************************************************************/ |
39 /*************************************************************************/ | 39 /*************************************************************************/ |
40 /***** *****/ | 40 /***** *****/ |
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126 FT_LOCAL( FT_Error ) | 126 FT_LOCAL( FT_Error ) |
127 af_latin_metrics_init( AF_LatinMetrics metrics, | 127 af_latin_metrics_init( AF_LatinMetrics metrics, |
128 FT_Face face ); | 128 FT_Face face ); |
129 | 129 |
130 FT_LOCAL( void ) | 130 FT_LOCAL( void ) |
131 af_latin_metrics_scale( AF_LatinMetrics metrics, | 131 af_latin_metrics_scale( AF_LatinMetrics metrics, |
132 AF_Scaler scaler ); | 132 AF_Scaler scaler ); |
133 | 133 |
134 FT_LOCAL( void ) | 134 FT_LOCAL( void ) |
135 af_latin_metrics_init_widths( AF_LatinMetrics metrics, | 135 af_latin_metrics_init_widths( AF_LatinMetrics metrics, |
136 FT_Face face, | 136 FT_Face face ); |
137 FT_ULong charcode ); | |
138 | 137 |
139 FT_LOCAL( void ) | 138 FT_LOCAL( void ) |
140 af_latin_metrics_check_digits( AF_LatinMetrics metrics, | 139 af_latin_metrics_check_digits( AF_LatinMetrics metrics, |
141 FT_Face face ); | 140 FT_Face face ); |
142 | 141 |
143 | 142 |
144 /*************************************************************************/ | 143 /*************************************************************************/ |
145 /*************************************************************************/ | 144 /*************************************************************************/ |
146 /***** *****/ | 145 /***** *****/ |
147 /***** L A T I N G L Y P H A N A L Y S I S *****/ | 146 /***** L A T I N G L Y P H A N A L Y S I S *****/ |
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167 AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_VERT_SNAP ) | 166 AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_VERT_SNAP ) |
168 | 167 |
169 #define AF_LATIN_HINTS_DO_STEM_ADJUST( h ) \ | 168 #define AF_LATIN_HINTS_DO_STEM_ADJUST( h ) \ |
170 AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_STEM_ADJUST ) | 169 AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_STEM_ADJUST ) |
171 | 170 |
172 #define AF_LATIN_HINTS_DO_MONO( h ) \ | 171 #define AF_LATIN_HINTS_DO_MONO( h ) \ |
173 AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_MONO ) | 172 AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_MONO ) |
174 | 173 |
175 | 174 |
176 /* | 175 /* |
177 * This shouldn't normally be exported. However, other scripts might | 176 * The next functions shouldn't normally be exported. However, other |
178 * like to use this function as-is. | 177 * scripts might like to use these functions as-is. |
179 */ | 178 */ |
180 FT_LOCAL( FT_Error ) | 179 FT_LOCAL( FT_Error ) |
181 af_latin_hints_compute_segments( AF_GlyphHints hints, | 180 af_latin_hints_compute_segments( AF_GlyphHints hints, |
182 AF_Dimension dim ); | 181 AF_Dimension dim ); |
183 | 182 |
184 /* | |
185 * This shouldn't normally be exported. However, other scripts might | |
186 * want to use this function as-is. | |
187 */ | |
188 FT_LOCAL( void ) | 183 FT_LOCAL( void ) |
189 af_latin_hints_link_segments( AF_GlyphHints hints, | 184 af_latin_hints_link_segments( AF_GlyphHints hints, |
190 AF_Dimension dim ); | 185 AF_Dimension dim ); |
191 | 186 |
192 /* | |
193 * This shouldn't normally be exported. However, other scripts might | |
194 * want to use this function as-is. | |
195 */ | |
196 FT_LOCAL( FT_Error ) | 187 FT_LOCAL( FT_Error ) |
197 af_latin_hints_compute_edges( AF_GlyphHints hints, | 188 af_latin_hints_compute_edges( AF_GlyphHints hints, |
198 AF_Dimension dim ); | 189 AF_Dimension dim ); |
199 | 190 |
200 FT_LOCAL( FT_Error ) | 191 FT_LOCAL( FT_Error ) |
201 af_latin_hints_detect_features( AF_GlyphHints hints, | 192 af_latin_hints_detect_features( AF_GlyphHints hints, |
202 AF_Dimension dim ); | 193 AF_Dimension dim ); |
203 | 194 |
204 /* */ | 195 /* */ |
205 | 196 |
206 FT_END_HEADER | 197 FT_END_HEADER |
207 | 198 |
208 #endif /* __AFLATIN_H__ */ | 199 #endif /* __AFLATIN_H__ */ |
209 | 200 |
210 | 201 |
211 /* END */ | 202 /* END */ |
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