1/* This file has been generated by the Perl script `afblue.pl', */
2/* using data from file `afblue.dat'.                           */
3
4/***************************************************************************/
5/*                                                                         */
6/*  afblue.h                                                               */
7/*                                                                         */
8/*    Auto-fitter data for blue strings (specification).                   */
9/*                                                                         */
10/*  Copyright 2013-2015 by                                                 */
11/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
12/*                                                                         */
13/*  This file is part of the FreeType project, and may only be used,       */
14/*  modified, and distributed under the terms of the FreeType project      */
15/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
16/*  this file you indicate that you have read the license and              */
17/*  understand and accept it fully.                                        */
18/*                                                                         */
19/***************************************************************************/
20
21
22#ifndef __AFBLUE_H__
23#define __AFBLUE_H__
24
25
26FT_BEGIN_HEADER
27
28
29  /* an auxiliary macro to decode a UTF-8 character -- since we only use */
30  /* hard-coded, self-converted data, no error checking is performed     */
31#define GET_UTF8_CHAR( ch, p )                    \
32          ch = (unsigned char)*p++;               \
33          if ( ch >= 0x80 )                       \
34          {                                       \
35            FT_UInt  len;                         \
36                                                  \
37                                                  \
38            if ( ch < 0xE0 )                      \
39            {                                     \
40              len = 1;                            \
41              ch &= 0x1F;                         \
42            }                                     \
43            else if ( ch < 0xF0 )                 \
44            {                                     \
45              len = 2;                            \
46              ch &= 0x0F;                         \
47            }                                     \
48            else                                  \
49            {                                     \
50              len = 3;                            \
51              ch &= 0x07;                         \
52            }                                     \
53                                                  \
54            for ( ; len > 0; len-- )              \
55              ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
56          }
57
58
59  /*************************************************************************/
60  /*************************************************************************/
61  /*****                                                               *****/
62  /*****                    B L U E   S T R I N G S                    *****/
63  /*****                                                               *****/
64  /*************************************************************************/
65  /*************************************************************************/
66
67  /* At the bottommost level, we define strings for finding blue zones. */
68
69
70#define AF_BLUE_STRING_MAX_LEN  51
71
72  /* The AF_Blue_String enumeration values are offsets into the */
73  /* `af_blue_strings' array.                                   */
74
75  typedef enum  AF_Blue_String_
76  {
77    AF_BLUE_STRING_ARABIC_TOP = 0,
78    AF_BLUE_STRING_ARABIC_JOIN = 13,
79    AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 24,
80    AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 41,
81    AF_BLUE_STRING_CYRILLIC_SMALL = 58,
82    AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 75,
83    AF_BLUE_STRING_DEVANAGARI_BASE = 82,
84    AF_BLUE_STRING_DEVANAGARI_TOP = 107,
85    AF_BLUE_STRING_DEVANAGARI_HEAD = 132,
86    AF_BLUE_STRING_DEVANAGARI_BOTTOM = 157,
87    AF_BLUE_STRING_GREEK_CAPITAL_TOP = 164,
88    AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 179,
89    AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 192,
90    AF_BLUE_STRING_GREEK_SMALL = 205,
91    AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 222,
92    AF_BLUE_STRING_HEBREW_TOP = 239,
93    AF_BLUE_STRING_HEBREW_BOTTOM = 256,
94    AF_BLUE_STRING_HEBREW_DESCENDER = 269,
95    AF_BLUE_STRING_LATIN_CAPITAL_TOP = 280,
96    AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 289,
97    AF_BLUE_STRING_LATIN_SMALL_F_TOP = 298,
98    AF_BLUE_STRING_LATIN_SMALL = 306,
99    AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 314,
100    AF_BLUE_STRING_TELUGU_TOP = 320,
101    AF_BLUE_STRING_TELUGU_BOTTOM = 342,
102    AF_BLUE_STRING_THAI_TOP = 364,
103    AF_BLUE_STRING_THAI_BOTTOM = 383,
104    AF_BLUE_STRING_THAI_ASCENDER = 405,
105    AF_BLUE_STRING_THAI_LARGE_ASCENDER = 415,
106    AF_BLUE_STRING_THAI_DESCENDER = 425,
107    AF_BLUE_STRING_THAI_LARGE_DESCENDER = 438,
108    AF_BLUE_STRING_THAI_DIGIT_TOP = 445,
109    af_blue_1_1 = 454,
110#ifdef AF_CONFIG_OPTION_CJK
111    AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1,
112    AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 153,
113    af_blue_1_1_1 = af_blue_1_1 + 304,
114#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
115    AF_BLUE_STRING_CJK_LEFT = af_blue_1_1_1 + 1,
116    AF_BLUE_STRING_CJK_RIGHT = af_blue_1_1_1 + 153,
117    af_blue_1_1_2 = af_blue_1_1_1 + 304,
118#else
119    af_blue_1_1_2 = af_blue_1_1_1 + 0,
120#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
121    af_blue_1_2 = af_blue_1_1_2 + 0,
122#else
123    af_blue_1_2 = af_blue_1_1 + 0,
124#endif /* AF_CONFIG_OPTION_CJK                */
125
126
127    AF_BLUE_STRING_MAX   /* do not remove */
128
129  } AF_Blue_String;
130
131
132  FT_LOCAL_ARRAY( char )
133  af_blue_strings[];
134
135
136  /*************************************************************************/
137  /*************************************************************************/
138  /*****                                                               *****/
139  /*****                 B L U E   S T R I N G S E T S                 *****/
140  /*****                                                               *****/
141  /*************************************************************************/
142  /*************************************************************************/
143
144  /* The next level is to group blue strings into style-specific sets. */
145
146
147  /* Properties are specific to a writing system.  We assume that a given  */
148  /* blue string can't be used in more than a single writing system, which */
149  /* is a safe bet.                                                        */
150#define AF_BLUE_PROPERTY_LATIN_TOP       ( 1U << 0 )  /* must have value 1 */
151#define AF_BLUE_PROPERTY_LATIN_NEUTRAL   ( 1U << 1 )
152#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT  ( 1U << 2 )
153#define AF_BLUE_PROPERTY_LATIN_LONG      ( 1U << 3 )
154
155#define AF_BLUE_PROPERTY_CJK_TOP    ( 1U << 0 )       /* must have value 1 */
156#define AF_BLUE_PROPERTY_CJK_HORIZ  ( 1U << 1 )       /* must have value 2 */
157#define AF_BLUE_PROPERTY_CJK_RIGHT  AF_BLUE_PROPERTY_CJK_TOP
158
159
160#define AF_BLUE_STRINGSET_MAX_LEN  8
161
162  /* The AF_Blue_Stringset enumeration values are offsets into the */
163  /* `af_blue_stringsets' array.                                   */
164
165  typedef enum  AF_Blue_Stringset_
166  {
167    AF_BLUE_STRINGSET_ARAB = 0,
168    AF_BLUE_STRINGSET_CYRL = 3,
169    AF_BLUE_STRINGSET_DEVA = 9,
170    AF_BLUE_STRINGSET_GREK = 15,
171    AF_BLUE_STRINGSET_HEBR = 22,
172    AF_BLUE_STRINGSET_LATN = 26,
173    AF_BLUE_STRINGSET_TELU = 33,
174    AF_BLUE_STRINGSET_THAI = 36,
175    af_blue_2_1 = 44,
176#ifdef AF_CONFIG_OPTION_CJK
177    AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0,
178    af_blue_2_1_1 = af_blue_2_1 + 2,
179#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
180    af_blue_2_1_2 = af_blue_2_1_1 + 2,
181#else
182    af_blue_2_1_2 = af_blue_2_1_1 + 0,
183#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
184    af_blue_2_2 = af_blue_2_1_2 + 1,
185#else
186    af_blue_2_2 = af_blue_2_1 + 0,
187#endif /* AF_CONFIG_OPTION_CJK                */
188
189
190    AF_BLUE_STRINGSET_MAX   /* do not remove */
191
192  } AF_Blue_Stringset;
193
194
195  typedef struct  AF_Blue_StringRec_
196  {
197    AF_Blue_String  string;
198    FT_UShort       properties;
199
200  } AF_Blue_StringRec;
201
202
203  FT_LOCAL_ARRAY( AF_Blue_StringRec )
204  af_blue_stringsets[];
205
206/* */
207
208FT_END_HEADER
209
210
211#endif /* __AFBLUE_H__ */
212
213
214/* END */
215