3 // Copyright (C) 2012-2013 by Werner Lemberg.
5 // This file is part of the ttfautohint library, and may only be used,
6 // modified, and distributed under the terms given in `COPYING'. By
7 // continuing to use, modify, or distribute this file you indicate that you
8 // have read `COPYING' and understand and accept it fully.
10 // The file `COPYING' mentioned in the previous paragraph is distributed
11 // with the ttfautohint library.
22 #define TTFAUTOHINT_STRING "; ttfautohint"
23 #define TTFAUTOHINT_STRING_WIDE "\0;\0 \0t\0t\0f\0a\0u\0t\0o\0h\0i\0n\0t"
25 // build string that gets appended to the `Version' field(s)
29 // return value 1 means allocation error, value 2 too long a string
32 build_version_string(Info_Data
* idata
)
38 unsigned char* data_new
;
39 unsigned short data_new_len
;
44 // 128 bytes certainly hold the following options except -X
45 data_new
= (unsigned char*)realloc(idata
->data
, 128);
51 idata
->data
= data_new
;
53 d
= (char*)idata
->data
;
54 d
+= sprintf(d
, TTFAUTOHINT_STRING
" (v%s)", VERSION
);
58 d
+= sprintf(d
, " -d");
62 d
+= sprintf(d
, " -l %d", idata
->hinting_range_min
);
63 d
+= sprintf(d
, " -r %d", idata
->hinting_range_max
);
64 d
+= sprintf(d
, " -G %d", idata
->hinting_limit
);
65 d
+= sprintf(d
, " -x %d", idata
->increase_x_height
);
66 d
+= sprintf(d
, " -f %s", idata
->fallback_script
);
73 if (idata
->gray_strong_stem_width
)
74 strong
[count
++] = 'g';
75 if (idata
->gdi_cleartype_strong_stem_width
)
76 strong
[count
++] = 'G';
77 if (idata
->dw_cleartype_strong_stem_width
)
78 strong
[count
++] = 'D';
80 d
+= sprintf(d
, " -w %s", strong
);
82 d
+= sprintf(d
, " -w \"\"");
84 if (idata
->windows_compatibility
)
85 d
+= sprintf(d
, " -W");
86 if (idata
->pre_hinting
)
87 d
+= sprintf(d
, " -p");
88 if (idata
->hint_composites
)
89 d
+= sprintf(d
, " -c");
91 d
+= sprintf(d
, " -s");
92 if (idata
->x_height_snapping_exceptions
)
93 d
+= sprintf(d
, " -X \"\""); // fill in data later
96 idata
->data_len
= d
- (char*)idata
->data
;
98 if (idata
->x_height_snapping_exceptions
)
100 s
= number_set_show(idata
->x_height_snapping_exceptions
, 6, 0x7FFF);
107 // ensure UTF16-BE version doesn't get too long
109 if (s_len
> 0xFFFF / 2 - 128)
118 // we now reallocate to the real size
119 // (plus one byte so that `sprintf' works)
120 data_new_len
= idata
->data_len
+ s_len
;
121 data_new
= (unsigned char*)realloc(idata
->data
, data_new_len
+ 1);
128 if (idata
->x_height_snapping_exceptions
)
130 // overwrite second doublequote and append it instead
131 d
= (char*)(data_new
+ idata
->data_len
- 1);
132 sprintf(d
, "%s\"", s
);
135 idata
->data
= data_new
;
136 idata
->data_len
= data_new_len
;
138 // prepare UTF16-BE version data
139 idata
->data_wide_len
= 2 * idata
->data_len
;
140 data_new
= (unsigned char*)realloc(idata
->data_wide
,
141 idata
->data_wide_len
);
147 idata
->data_wide
= data_new
;
149 d
= (char*)idata
->data
;
150 dw
= (char*)idata
->data_wide
;
151 for (unsigned short i
= 0; i
< idata
->data_len
; i
++)
164 free(idata
->data_wide
);
167 idata
->data_wide
= NULL
;
169 idata
->data_wide_len
= 0;
176 info(unsigned short platform_id
,
177 unsigned short encoding_id
,
178 unsigned short /* language_id */,
179 unsigned short name_id
,
184 Info_Data
* idata
= (Info_Data
*)user
;
185 unsigned char ttfautohint_string
[] = TTFAUTOHINT_STRING
;
186 unsigned char ttfautohint_string_wide
[] = TTFAUTOHINT_STRING_WIDE
;
188 // we use memmem, so don't count the trailing \0 character
189 size_t ttfautohint_string_len
= sizeof (TTFAUTOHINT_STRING
) - 1;
190 size_t ttfautohint_string_wide_len
= sizeof (TTFAUTOHINT_STRING_WIDE
) - 1;
193 unsigned short v_len
;
198 // if it is a version string, append our data
203 || (platform_id
== 3 && !(encoding_id
== 1
204 || encoding_id
== 10)))
206 // one-byte or multi-byte encodings
208 v_len
= idata
->data_len
;
209 s
= ttfautohint_string
;
210 s_len
= ttfautohint_string_len
;
215 // (two-byte) UTF-16BE for everything else
216 v
= idata
->data_wide
;
217 v_len
= idata
->data_wide_len
;
218 s
= ttfautohint_string_wide
;
219 s_len
= ttfautohint_string_wide_len
;
223 // if we already have an ttfautohint info string,
224 // remove it up to a following `;' character (or end of string)
225 unsigned char* s_start
= (unsigned char*)memmem(*str
, *len
, s
, s_len
);
228 unsigned char* s_end
= s_start
+ offset
;
229 unsigned char* limit
= *str
+ *len
;
231 while (s_end
< limit
)
239 if (*(s_end
- 1) == '\0') // UTF-16BE
250 while (s_end
< limit
)
251 *s_start
++ = *s_end
++;
253 *len
-= s_end
- s_start
;
256 // do nothing if the string would become too long
257 if (*len
> 0xFFFF - v_len
)
260 unsigned short len_new
= *len
+ v_len
;
261 unsigned char* str_new
= (unsigned char*)realloc(*str
, len_new
);
266 memcpy(*str
+ *len
, v
, v_len
);