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comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/harfbuzz/hb-common.h @ 69:33d812a61356

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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67:0e9998148a16 69:33d812a61356
1 /*
2 * Copyright © 2007,2008,2009 Red Hat, Inc.
3 * Copyright © 2011,2012 Google, Inc.
4 *
5 * This is part of HarfBuzz, a text shaping library.
6 *
7 * Permission is hereby granted, without written agreement and without
8 * license or royalty fees, to use, copy, modify, and distribute this
9 * software and its documentation for any purpose, provided that the
10 * above copyright notice and the following two paragraphs appear in
11 * all copies of this software.
12 *
13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
17 * DAMAGE.
18 *
19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 *
25 * Red Hat Author(s): Behdad Esfahbod
26 * Google Author(s): Behdad Esfahbod
27 */
28
29 #ifndef HB_H_IN
30 #error "Include <hb.h> instead."
31 #endif
32
33 #ifndef HB_COMMON_H
34 #define HB_COMMON_H
35
36 #ifndef HB_EXTERN
37 #define HB_EXTERN extern
38 #endif
39
40 #ifndef HB_BEGIN_DECLS
41 # ifdef __cplusplus
42 # define HB_BEGIN_DECLS extern "C" {
43 # define HB_END_DECLS }
44 # else /* !__cplusplus */
45 # define HB_BEGIN_DECLS
46 # define HB_END_DECLS
47 # endif /* !__cplusplus */
48 #endif
49
50 #if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || \
51 defined (_sgi) || defined (__sun) || defined (sun) || \
52 defined (__digital__) || defined (__HP_cc)
53 # include <inttypes.h>
54 #elif defined (_AIX)
55 # include <sys/inttypes.h>
56 #elif defined (_MSC_VER) && _MSC_VER < 1600
57 /* VS 2010 (_MSC_VER 1600) has stdint.h */
58 typedef __int8 int8_t;
59 typedef unsigned __int8 uint8_t;
60 typedef __int16 int16_t;
61 typedef unsigned __int16 uint16_t;
62 typedef __int32 int32_t;
63 typedef unsigned __int32 uint32_t;
64 typedef __int64 int64_t;
65 typedef unsigned __int64 uint64_t;
66 #elif defined (__KERNEL__)
67 # include <linux/types.h>
68 #else
69 # include <stdint.h>
70 #endif
71
72 #if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
73 #define HB_DEPRECATED __attribute__((__deprecated__))
74 #elif defined(_MSC_VER) && (_MSC_VER >= 1300)
75 #define HB_DEPRECATED __declspec(deprecated)
76 #else
77 #define HB_DEPRECATED
78 #endif
79
80 #if defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
81 #define HB_DEPRECATED_FOR(f) __attribute__((__deprecated__("Use '" #f "' instead")))
82 #elif defined(_MSC_FULL_VER) && (_MSC_FULL_VER > 140050320)
83 #define HB_DEPRECATED_FOR(f) __declspec(deprecated("is deprecated. Use '" #f "' instead"))
84 #else
85 #define HB_DEPRECATED_FOR(f) HB_DEPRECATED
86 #endif
87
88
89 HB_BEGIN_DECLS
90
91
92 typedef int hb_bool_t;
93
94 typedef uint32_t hb_codepoint_t;
95 typedef int32_t hb_position_t;
96 typedef uint32_t hb_mask_t;
97
98 typedef union _hb_var_int_t {
99 uint32_t u32;
100 int32_t i32;
101 uint16_t u16[2];
102 int16_t i16[2];
103 uint8_t u8[4];
104 int8_t i8[4];
105 } hb_var_int_t;
106
107
108 /* hb_tag_t */
109
110 typedef uint32_t hb_tag_t;
111
112 #define HB_TAG(c1,c2,c3,c4) ((hb_tag_t)((((uint32_t)(c1)&0xFF)<<24)|(((uint32_t)(c2)&0xFF)<<16)|(((uint32_t)(c3)&0xFF)<<8)|((uint32_t)(c4)&0xFF)))
113 #define HB_UNTAG(tag) (uint8_t)(((tag)>>24)&0xFF), (uint8_t)(((tag)>>16)&0xFF), (uint8_t)(((tag)>>8)&0xFF), (uint8_t)((tag)&0xFF)
114
115 #define HB_TAG_NONE HB_TAG(0,0,0,0)
116 #define HB_TAG_MAX HB_TAG(0xff,0xff,0xff,0xff)
117 #define HB_TAG_MAX_SIGNED HB_TAG(0x7f,0xff,0xff,0xff)
118
119 /* len=-1 means str is NUL-terminated. */
120 HB_EXTERN hb_tag_t
121 hb_tag_from_string (const char *str, int len);
122
123 /* buf should have 4 bytes. */
124 HB_EXTERN void
125 hb_tag_to_string (hb_tag_t tag, char *buf);
126
127
128 /**
129 * hb_direction_t:
130 * @HB_DIRECTION_INVALID: Initial, unset direction.
131 * @HB_DIRECTION_LTR: Text is set horizontally from left to right.
132 * @HB_DIRECTION_RTL: Text is set horizontally from right to left.
133 * @HB_DIRECTION_TTB: Text is set vertically from top to bottom.
134 * @HB_DIRECTION_BTT: Text is set vertically from bottom to top.
135 */
136 typedef enum {
137 HB_DIRECTION_INVALID = 0,
138 HB_DIRECTION_LTR = 4,
139 HB_DIRECTION_RTL,
140 HB_DIRECTION_TTB,
141 HB_DIRECTION_BTT
142 } hb_direction_t;
143
144 /* len=-1 means str is NUL-terminated */
145 HB_EXTERN hb_direction_t
146 hb_direction_from_string (const char *str, int len);
147
148 HB_EXTERN const char *
149 hb_direction_to_string (hb_direction_t direction);
150
151 #define HB_DIRECTION_IS_VALID(dir) ((((unsigned int) (dir)) & ~3U) == 4)
152 /* Direction must be valid for the following */
153 #define HB_DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 4)
154 #define HB_DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 6)
155 #define HB_DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 4)
156 #define HB_DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 5)
157 #define HB_DIRECTION_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1))
158
159
160 /* hb_language_t */
161
162 typedef const struct hb_language_impl_t *hb_language_t;
163
164 HB_EXTERN hb_language_t
165 hb_language_from_string (const char *str, int len);
166
167 HB_EXTERN const char *
168 hb_language_to_string (hb_language_t language);
169
170 #define HB_LANGUAGE_INVALID ((hb_language_t) 0)
171
172 HB_EXTERN hb_language_t
173 hb_language_get_default (void);
174
175
176 /* hb_script_t */
177
178 /* https://unicode.org/iso15924/ */
179 /* https://docs.google.com/spreadsheets/d/1Y90M0Ie3MUJ6UVCRDOypOtijlMDLNNyyLk36T6iMu0o */
180 /* Unicode Character Database property: Script (sc) */
181 typedef enum
182 {
183 /*1.1*/ HB_SCRIPT_COMMON = HB_TAG ('Z','y','y','y'),
184 /*1.1*/ HB_SCRIPT_INHERITED = HB_TAG ('Z','i','n','h'),
185 /*5.0*/ HB_SCRIPT_UNKNOWN = HB_TAG ('Z','z','z','z'),
186
187 /*1.1*/ HB_SCRIPT_ARABIC = HB_TAG ('A','r','a','b'),
188 /*1.1*/ HB_SCRIPT_ARMENIAN = HB_TAG ('A','r','m','n'),
189 /*1.1*/ HB_SCRIPT_BENGALI = HB_TAG ('B','e','n','g'),
190 /*1.1*/ HB_SCRIPT_CYRILLIC = HB_TAG ('C','y','r','l'),
191 /*1.1*/ HB_SCRIPT_DEVANAGARI = HB_TAG ('D','e','v','a'),
192 /*1.1*/ HB_SCRIPT_GEORGIAN = HB_TAG ('G','e','o','r'),
193 /*1.1*/ HB_SCRIPT_GREEK = HB_TAG ('G','r','e','k'),
194 /*1.1*/ HB_SCRIPT_GUJARATI = HB_TAG ('G','u','j','r'),
195 /*1.1*/ HB_SCRIPT_GURMUKHI = HB_TAG ('G','u','r','u'),
196 /*1.1*/ HB_SCRIPT_HANGUL = HB_TAG ('H','a','n','g'),
197 /*1.1*/ HB_SCRIPT_HAN = HB_TAG ('H','a','n','i'),
198 /*1.1*/ HB_SCRIPT_HEBREW = HB_TAG ('H','e','b','r'),
199 /*1.1*/ HB_SCRIPT_HIRAGANA = HB_TAG ('H','i','r','a'),
200 /*1.1*/ HB_SCRIPT_KANNADA = HB_TAG ('K','n','d','a'),
201 /*1.1*/ HB_SCRIPT_KATAKANA = HB_TAG ('K','a','n','a'),
202 /*1.1*/ HB_SCRIPT_LAO = HB_TAG ('L','a','o','o'),
203 /*1.1*/ HB_SCRIPT_LATIN = HB_TAG ('L','a','t','n'),
204 /*1.1*/ HB_SCRIPT_MALAYALAM = HB_TAG ('M','l','y','m'),
205 /*1.1*/ HB_SCRIPT_ORIYA = HB_TAG ('O','r','y','a'),
206 /*1.1*/ HB_SCRIPT_TAMIL = HB_TAG ('T','a','m','l'),
207 /*1.1*/ HB_SCRIPT_TELUGU = HB_TAG ('T','e','l','u'),
208 /*1.1*/ HB_SCRIPT_THAI = HB_TAG ('T','h','a','i'),
209
210 /*2.0*/ HB_SCRIPT_TIBETAN = HB_TAG ('T','i','b','t'),
211
212 /*3.0*/ HB_SCRIPT_BOPOMOFO = HB_TAG ('B','o','p','o'),
213 /*3.0*/ HB_SCRIPT_BRAILLE = HB_TAG ('B','r','a','i'),
214 /*3.0*/ HB_SCRIPT_CANADIAN_SYLLABICS = HB_TAG ('C','a','n','s'),
215 /*3.0*/ HB_SCRIPT_CHEROKEE = HB_TAG ('C','h','e','r'),
216 /*3.0*/ HB_SCRIPT_ETHIOPIC = HB_TAG ('E','t','h','i'),
217 /*3.0*/ HB_SCRIPT_KHMER = HB_TAG ('K','h','m','r'),
218 /*3.0*/ HB_SCRIPT_MONGOLIAN = HB_TAG ('M','o','n','g'),
219 /*3.0*/ HB_SCRIPT_MYANMAR = HB_TAG ('M','y','m','r'),
220 /*3.0*/ HB_SCRIPT_OGHAM = HB_TAG ('O','g','a','m'),
221 /*3.0*/ HB_SCRIPT_RUNIC = HB_TAG ('R','u','n','r'),
222 /*3.0*/ HB_SCRIPT_SINHALA = HB_TAG ('S','i','n','h'),
223 /*3.0*/ HB_SCRIPT_SYRIAC = HB_TAG ('S','y','r','c'),
224 /*3.0*/ HB_SCRIPT_THAANA = HB_TAG ('T','h','a','a'),
225 /*3.0*/ HB_SCRIPT_YI = HB_TAG ('Y','i','i','i'),
226
227 /*3.1*/ HB_SCRIPT_DESERET = HB_TAG ('D','s','r','t'),
228 /*3.1*/ HB_SCRIPT_GOTHIC = HB_TAG ('G','o','t','h'),
229 /*3.1*/ HB_SCRIPT_OLD_ITALIC = HB_TAG ('I','t','a','l'),
230
231 /*3.2*/ HB_SCRIPT_BUHID = HB_TAG ('B','u','h','d'),
232 /*3.2*/ HB_SCRIPT_HANUNOO = HB_TAG ('H','a','n','o'),
233 /*3.2*/ HB_SCRIPT_TAGALOG = HB_TAG ('T','g','l','g'),
234 /*3.2*/ HB_SCRIPT_TAGBANWA = HB_TAG ('T','a','g','b'),
235
236 /*4.0*/ HB_SCRIPT_CYPRIOT = HB_TAG ('C','p','r','t'),
237 /*4.0*/ HB_SCRIPT_LIMBU = HB_TAG ('L','i','m','b'),
238 /*4.0*/ HB_SCRIPT_LINEAR_B = HB_TAG ('L','i','n','b'),
239 /*4.0*/ HB_SCRIPT_OSMANYA = HB_TAG ('O','s','m','a'),
240 /*4.0*/ HB_SCRIPT_SHAVIAN = HB_TAG ('S','h','a','w'),
241 /*4.0*/ HB_SCRIPT_TAI_LE = HB_TAG ('T','a','l','e'),
242 /*4.0*/ HB_SCRIPT_UGARITIC = HB_TAG ('U','g','a','r'),
243
244 /*4.1*/ HB_SCRIPT_BUGINESE = HB_TAG ('B','u','g','i'),
245 /*4.1*/ HB_SCRIPT_COPTIC = HB_TAG ('C','o','p','t'),
246 /*4.1*/ HB_SCRIPT_GLAGOLITIC = HB_TAG ('G','l','a','g'),
247 /*4.1*/ HB_SCRIPT_KHAROSHTHI = HB_TAG ('K','h','a','r'),
248 /*4.1*/ HB_SCRIPT_NEW_TAI_LUE = HB_TAG ('T','a','l','u'),
249 /*4.1*/ HB_SCRIPT_OLD_PERSIAN = HB_TAG ('X','p','e','o'),
250 /*4.1*/ HB_SCRIPT_SYLOTI_NAGRI = HB_TAG ('S','y','l','o'),
251 /*4.1*/ HB_SCRIPT_TIFINAGH = HB_TAG ('T','f','n','g'),
252
253 /*5.0*/ HB_SCRIPT_BALINESE = HB_TAG ('B','a','l','i'),
254 /*5.0*/ HB_SCRIPT_CUNEIFORM = HB_TAG ('X','s','u','x'),
255 /*5.0*/ HB_SCRIPT_NKO = HB_TAG ('N','k','o','o'),
256 /*5.0*/ HB_SCRIPT_PHAGS_PA = HB_TAG ('P','h','a','g'),
257 /*5.0*/ HB_SCRIPT_PHOENICIAN = HB_TAG ('P','h','n','x'),
258
259 /*5.1*/ HB_SCRIPT_CARIAN = HB_TAG ('C','a','r','i'),
260 /*5.1*/ HB_SCRIPT_CHAM = HB_TAG ('C','h','a','m'),
261 /*5.1*/ HB_SCRIPT_KAYAH_LI = HB_TAG ('K','a','l','i'),
262 /*5.1*/ HB_SCRIPT_LEPCHA = HB_TAG ('L','e','p','c'),
263 /*5.1*/ HB_SCRIPT_LYCIAN = HB_TAG ('L','y','c','i'),
264 /*5.1*/ HB_SCRIPT_LYDIAN = HB_TAG ('L','y','d','i'),
265 /*5.1*/ HB_SCRIPT_OL_CHIKI = HB_TAG ('O','l','c','k'),
266 /*5.1*/ HB_SCRIPT_REJANG = HB_TAG ('R','j','n','g'),
267 /*5.1*/ HB_SCRIPT_SAURASHTRA = HB_TAG ('S','a','u','r'),
268 /*5.1*/ HB_SCRIPT_SUNDANESE = HB_TAG ('S','u','n','d'),
269 /*5.1*/ HB_SCRIPT_VAI = HB_TAG ('V','a','i','i'),
270
271 /*5.2*/ HB_SCRIPT_AVESTAN = HB_TAG ('A','v','s','t'),
272 /*5.2*/ HB_SCRIPT_BAMUM = HB_TAG ('B','a','m','u'),
273 /*5.2*/ HB_SCRIPT_EGYPTIAN_HIEROGLYPHS = HB_TAG ('E','g','y','p'),
274 /*5.2*/ HB_SCRIPT_IMPERIAL_ARAMAIC = HB_TAG ('A','r','m','i'),
275 /*5.2*/ HB_SCRIPT_INSCRIPTIONAL_PAHLAVI = HB_TAG ('P','h','l','i'),
276 /*5.2*/ HB_SCRIPT_INSCRIPTIONAL_PARTHIAN = HB_TAG ('P','r','t','i'),
277 /*5.2*/ HB_SCRIPT_JAVANESE = HB_TAG ('J','a','v','a'),
278 /*5.2*/ HB_SCRIPT_KAITHI = HB_TAG ('K','t','h','i'),
279 /*5.2*/ HB_SCRIPT_LISU = HB_TAG ('L','i','s','u'),
280 /*5.2*/ HB_SCRIPT_MEETEI_MAYEK = HB_TAG ('M','t','e','i'),
281 /*5.2*/ HB_SCRIPT_OLD_SOUTH_ARABIAN = HB_TAG ('S','a','r','b'),
282 /*5.2*/ HB_SCRIPT_OLD_TURKIC = HB_TAG ('O','r','k','h'),
283 /*5.2*/ HB_SCRIPT_SAMARITAN = HB_TAG ('S','a','m','r'),
284 /*5.2*/ HB_SCRIPT_TAI_THAM = HB_TAG ('L','a','n','a'),
285 /*5.2*/ HB_SCRIPT_TAI_VIET = HB_TAG ('T','a','v','t'),
286
287 /*6.0*/ HB_SCRIPT_BATAK = HB_TAG ('B','a','t','k'),
288 /*6.0*/ HB_SCRIPT_BRAHMI = HB_TAG ('B','r','a','h'),
289 /*6.0*/ HB_SCRIPT_MANDAIC = HB_TAG ('M','a','n','d'),
290
291 /*6.1*/ HB_SCRIPT_CHAKMA = HB_TAG ('C','a','k','m'),
292 /*6.1*/ HB_SCRIPT_MEROITIC_CURSIVE = HB_TAG ('M','e','r','c'),
293 /*6.1*/ HB_SCRIPT_MEROITIC_HIEROGLYPHS = HB_TAG ('M','e','r','o'),
294 /*6.1*/ HB_SCRIPT_MIAO = HB_TAG ('P','l','r','d'),
295 /*6.1*/ HB_SCRIPT_SHARADA = HB_TAG ('S','h','r','d'),
296 /*6.1*/ HB_SCRIPT_SORA_SOMPENG = HB_TAG ('S','o','r','a'),
297 /*6.1*/ HB_SCRIPT_TAKRI = HB_TAG ('T','a','k','r'),
298
299 /*
300 * Since: 0.9.30
301 */
302 /*7.0*/ HB_SCRIPT_BASSA_VAH = HB_TAG ('B','a','s','s'),
303 /*7.0*/ HB_SCRIPT_CAUCASIAN_ALBANIAN = HB_TAG ('A','g','h','b'),
304 /*7.0*/ HB_SCRIPT_DUPLOYAN = HB_TAG ('D','u','p','l'),
305 /*7.0*/ HB_SCRIPT_ELBASAN = HB_TAG ('E','l','b','a'),
306 /*7.0*/ HB_SCRIPT_GRANTHA = HB_TAG ('G','r','a','n'),
307 /*7.0*/ HB_SCRIPT_KHOJKI = HB_TAG ('K','h','o','j'),
308 /*7.0*/ HB_SCRIPT_KHUDAWADI = HB_TAG ('S','i','n','d'),
309 /*7.0*/ HB_SCRIPT_LINEAR_A = HB_TAG ('L','i','n','a'),
310 /*7.0*/ HB_SCRIPT_MAHAJANI = HB_TAG ('M','a','h','j'),
311 /*7.0*/ HB_SCRIPT_MANICHAEAN = HB_TAG ('M','a','n','i'),
312 /*7.0*/ HB_SCRIPT_MENDE_KIKAKUI = HB_TAG ('M','e','n','d'),
313 /*7.0*/ HB_SCRIPT_MODI = HB_TAG ('M','o','d','i'),
314 /*7.0*/ HB_SCRIPT_MRO = HB_TAG ('M','r','o','o'),
315 /*7.0*/ HB_SCRIPT_NABATAEAN = HB_TAG ('N','b','a','t'),
316 /*7.0*/ HB_SCRIPT_OLD_NORTH_ARABIAN = HB_TAG ('N','a','r','b'),
317 /*7.0*/ HB_SCRIPT_OLD_PERMIC = HB_TAG ('P','e','r','m'),
318 /*7.0*/ HB_SCRIPT_PAHAWH_HMONG = HB_TAG ('H','m','n','g'),
319 /*7.0*/ HB_SCRIPT_PALMYRENE = HB_TAG ('P','a','l','m'),
320 /*7.0*/ HB_SCRIPT_PAU_CIN_HAU = HB_TAG ('P','a','u','c'),
321 /*7.0*/ HB_SCRIPT_PSALTER_PAHLAVI = HB_TAG ('P','h','l','p'),
322 /*7.0*/ HB_SCRIPT_SIDDHAM = HB_TAG ('S','i','d','d'),
323 /*7.0*/ HB_SCRIPT_TIRHUTA = HB_TAG ('T','i','r','h'),
324 /*7.0*/ HB_SCRIPT_WARANG_CITI = HB_TAG ('W','a','r','a'),
325
326 /*8.0*/ HB_SCRIPT_AHOM = HB_TAG ('A','h','o','m'),
327 /*8.0*/ HB_SCRIPT_ANATOLIAN_HIEROGLYPHS = HB_TAG ('H','l','u','w'),
328 /*8.0*/ HB_SCRIPT_HATRAN = HB_TAG ('H','a','t','r'),
329 /*8.0*/ HB_SCRIPT_MULTANI = HB_TAG ('M','u','l','t'),
330 /*8.0*/ HB_SCRIPT_OLD_HUNGARIAN = HB_TAG ('H','u','n','g'),
331 /*8.0*/ HB_SCRIPT_SIGNWRITING = HB_TAG ('S','g','n','w'),
332
333 /*
334 * Since 1.3.0
335 */
336 /*9.0*/ HB_SCRIPT_ADLAM = HB_TAG ('A','d','l','m'),
337 /*9.0*/ HB_SCRIPT_BHAIKSUKI = HB_TAG ('B','h','k','s'),
338 /*9.0*/ HB_SCRIPT_MARCHEN = HB_TAG ('M','a','r','c'),
339 /*9.0*/ HB_SCRIPT_OSAGE = HB_TAG ('O','s','g','e'),
340 /*9.0*/ HB_SCRIPT_TANGUT = HB_TAG ('T','a','n','g'),
341 /*9.0*/ HB_SCRIPT_NEWA = HB_TAG ('N','e','w','a'),
342
343 /*
344 * Since 1.6.0
345 */
346 /*10.0*/HB_SCRIPT_MASARAM_GONDI = HB_TAG ('G','o','n','m'),
347 /*10.0*/HB_SCRIPT_NUSHU = HB_TAG ('N','s','h','u'),
348 /*10.0*/HB_SCRIPT_SOYOMBO = HB_TAG ('S','o','y','o'),
349 /*10.0*/HB_SCRIPT_ZANABAZAR_SQUARE = HB_TAG ('Z','a','n','b'),
350
351 /*
352 * Since 1.8.0
353 */
354 /*11.0*/HB_SCRIPT_DOGRA = HB_TAG ('D','o','g','r'),
355 /*11.0*/HB_SCRIPT_GUNJALA_GONDI = HB_TAG ('G','o','n','g'),
356 /*11.0*/HB_SCRIPT_HANIFI_ROHINGYA = HB_TAG ('R','o','h','g'),
357 /*11.0*/HB_SCRIPT_MAKASAR = HB_TAG ('M','a','k','a'),
358 /*11.0*/HB_SCRIPT_MEDEFAIDRIN = HB_TAG ('M','e','d','f'),
359 /*11.0*/HB_SCRIPT_OLD_SOGDIAN = HB_TAG ('S','o','g','o'),
360 /*11.0*/HB_SCRIPT_SOGDIAN = HB_TAG ('S','o','g','d'),
361
362 /*
363 * Since 2.4.0
364 */
365 /*12.0*/HB_SCRIPT_ELYMAIC = HB_TAG ('E','l','y','m'),
366 /*12.0*/HB_SCRIPT_NANDINAGARI = HB_TAG ('N','a','n','d'),
367 /*12.0*/HB_SCRIPT_NYIAKENG_PUACHUE_HMONG = HB_TAG ('H','m','n','p'),
368 /*12.0*/HB_SCRIPT_WANCHO = HB_TAG ('W','c','h','o'),
369
370 /*
371 * Since 2.6.7
372 */
373 /*13.0*/HB_SCRIPT_CHORASMIAN = HB_TAG ('C','h','r','s'),
374 /*13.0*/HB_SCRIPT_DIVES_AKURU = HB_TAG ('D','i','a','k'),
375 /*13.0*/HB_SCRIPT_KHITAN_SMALL_SCRIPT = HB_TAG ('K','i','t','s'),
376 /*13.0*/HB_SCRIPT_YEZIDI = HB_TAG ('Y','e','z','i'),
377
378 /* No script set. */
379 HB_SCRIPT_INVALID = HB_TAG_NONE,
380
381 /* Dummy values to ensure any hb_tag_t value can be passed/stored as hb_script_t
382 * without risking undefined behavior. We have two, for historical reasons.
383 * HB_TAG_MAX used to be unsigned, but that was invalid Ansi C, so was changed
384 * to _HB_SCRIPT_MAX_VALUE to be equal to HB_TAG_MAX_SIGNED as well.
385 *
386 * See this thread for technicalities:
387 *
388 * https://lists.freedesktop.org/archives/harfbuzz/2014-March/004150.html
389 */
390 _HB_SCRIPT_MAX_VALUE = HB_TAG_MAX_SIGNED, /*< skip >*/
391 _HB_SCRIPT_MAX_VALUE_SIGNED = HB_TAG_MAX_SIGNED /*< skip >*/
392
393 } hb_script_t;
394
395
396 /* Script functions */
397
398 HB_EXTERN hb_script_t
399 hb_script_from_iso15924_tag (hb_tag_t tag);
400
401 HB_EXTERN hb_script_t
402 hb_script_from_string (const char *str, int len);
403
404 HB_EXTERN hb_tag_t
405 hb_script_to_iso15924_tag (hb_script_t script);
406
407 HB_EXTERN hb_direction_t
408 hb_script_get_horizontal_direction (hb_script_t script);
409
410
411 /* User data */
412
413 typedef struct hb_user_data_key_t {
414 /*< private >*/
415 char unused;
416 } hb_user_data_key_t;
417
418 typedef void (*hb_destroy_func_t) (void *user_data);
419
420
421 /* Font features and variations. */
422
423 /**
424 * HB_FEATURE_GLOBAL_START
425 *
426 * Since: 2.0.0
427 */
428 #define HB_FEATURE_GLOBAL_START 0
429 /**
430 * HB_FEATURE_GLOBAL_END
431 *
432 * Since: 2.0.0
433 */
434 #define HB_FEATURE_GLOBAL_END ((unsigned int) -1)
435
436 /**
437 * hb_feature_t:
438 * @tag: a feature tag
439 * @value: 0 disables the feature, non-zero (usually 1) enables the feature.
440 * For features implemented as lookup type 3 (like 'salt') the @value is a one
441 * based index into the alternates.
442 * @start: the cluster to start applying this feature setting (inclusive).
443 * @end: the cluster to end applying this feature setting (exclusive).
444 *
445 * The #hb_feature_t is the structure that holds information about requested
446 * feature application. The feature will be applied with the given value to all
447 * glyphs which are in clusters between @start (inclusive) and @end (exclusive).
448 * Setting start to @HB_FEATURE_GLOBAL_START and end to @HB_FEATURE_GLOBAL_END
449 * specifies that the feature always applies to the entire buffer.
450 */
451 typedef struct hb_feature_t {
452 hb_tag_t tag;
453 uint32_t value;
454 unsigned int start;
455 unsigned int end;
456 } hb_feature_t;
457
458 HB_EXTERN hb_bool_t
459 hb_feature_from_string (const char *str, int len,
460 hb_feature_t *feature);
461
462 HB_EXTERN void
463 hb_feature_to_string (hb_feature_t *feature,
464 char *buf, unsigned int size);
465
466 /**
467 * hb_variation_t:
468 *
469 * Since: 1.4.2
470 */
471 typedef struct hb_variation_t {
472 hb_tag_t tag;
473 float value;
474 } hb_variation_t;
475
476 HB_EXTERN hb_bool_t
477 hb_variation_from_string (const char *str, int len,
478 hb_variation_t *variation);
479
480 HB_EXTERN void
481 hb_variation_to_string (hb_variation_t *variation,
482 char *buf, unsigned int size);
483
484 /**
485 * hb_color_t:
486 *
487 * Data type for holding color values.
488 *
489 * Since: 2.1.0
490 */
491 typedef uint32_t hb_color_t;
492
493 #define HB_COLOR(b,g,r,a) ((hb_color_t) HB_TAG ((b),(g),(r),(a)))
494
495 HB_EXTERN uint8_t
496 hb_color_get_alpha (hb_color_t color);
497 #define hb_color_get_alpha(color) ((color) & 0xFF)
498
499 HB_EXTERN uint8_t
500 hb_color_get_red (hb_color_t color);
501 #define hb_color_get_red(color) (((color) >> 8) & 0xFF)
502
503 HB_EXTERN uint8_t
504 hb_color_get_green (hb_color_t color);
505 #define hb_color_get_green(color) (((color) >> 16) & 0xFF)
506
507 HB_EXTERN uint8_t
508 hb_color_get_blue (hb_color_t color);
509 #define hb_color_get_blue(color) (((color) >> 24) & 0xFF)
510
511 HB_END_DECLS
512
513 #endif /* HB_COMMON_H */