| 2 |
- |
1 |
/* Copyright (C) 2002 Aladdin Enterprises. All rights reserved.
|
|
|
2 |
|
|
|
3 |
This software is provided AS-IS with no warranty, either express or
|
|
|
4 |
implied.
|
|
|
5 |
|
|
|
6 |
This software is distributed under license and may not be copied,
|
|
|
7 |
modified or distributed except as expressly authorized under the terms
|
|
|
8 |
of the license contained in the file LICENSE in this distribution.
|
|
|
9 |
|
|
|
10 |
For more information about licensing, please refer to
|
|
|
11 |
http://www.ghostscript.com/licensing/. For information on
|
|
|
12 |
commercial licensing, go to http://www.artifex.com/licensing/ or
|
|
|
13 |
contact Artifex Software, Inc., 101 Lucas Valley Road #110,
|
|
|
14 |
San Rafael, CA 94903, U.S.A., +1(415)492-9861.
|
|
|
15 |
*/
|
|
|
16 |
|
|
|
17 |
/* $Id: gxfcopy.c,v 1.55 2004/12/15 23:21:32 igor Exp $ */
|
|
|
18 |
/* Font copying for high-level output */
|
|
|
19 |
#include "memory_.h"
|
|
|
20 |
#include "gx.h"
|
|
|
21 |
#include "gscencs.h"
|
|
|
22 |
#include "gserrors.h"
|
|
|
23 |
#include "gsline.h" /* for BuildChar */
|
|
|
24 |
#include "gspaint.h" /* for BuildChar */
|
|
|
25 |
#include "gspath.h" /* for gs_moveto in BuildChar */
|
|
|
26 |
#include "gsstruct.h"
|
|
|
27 |
#include "gsutil.h"
|
|
|
28 |
#include "stream.h"
|
|
|
29 |
#include "gxfont.h"
|
|
|
30 |
#include "gxfont1.h"
|
|
|
31 |
#include "gxfont42.h"
|
|
|
32 |
#include "gxfcid.h"
|
|
|
33 |
#include "gxfcopy.h"
|
|
|
34 |
#include "gxfcache.h" /* for gs_font_dir_s */
|
|
|
35 |
#include "gxistate.h" /* for Type 1 glyph_outline */
|
|
|
36 |
#include "gxtext.h" /* for BuildChar */
|
|
|
37 |
#include "gxtype1.h" /* for Type 1 glyph_outline */
|
|
|
38 |
#include "gzstate.h" /* for path for BuildChar */
|
|
|
39 |
#include "gdevpsf.h"
|
|
|
40 |
|
|
|
41 |
#define GLYPHS_SIZE_IS_PRIME 1 /* Old code = 0, new code = 1. */
|
|
|
42 |
|
|
|
43 |
/* ================ Types and structures ================ */
|
|
|
44 |
|
|
|
45 |
typedef struct gs_copied_glyph_s gs_copied_glyph_t;
|
|
|
46 |
typedef struct gs_copied_font_data_s gs_copied_font_data_t;
|
|
|
47 |
|
|
|
48 |
typedef struct gs_copied_font_procs_s {
|
|
|
49 |
int (*finish_copy_font)(gs_font *font, gs_font *copied);
|
|
|
50 |
int (*copy_glyph)(gs_font *font, gs_glyph glyph, gs_font *copied,
|
|
|
51 |
int options);
|
|
|
52 |
int (*add_encoding)(gs_font *copied, gs_char chr, gs_glyph glyph);
|
|
|
53 |
int (*named_glyph_slot)(gs_copied_font_data_t *cfdata, gs_glyph glyph,
|
|
|
54 |
gs_copied_glyph_t **pslot);
|
|
|
55 |
/* Font procedures */
|
|
|
56 |
font_proc_encode_char((*encode_char));
|
|
|
57 |
font_proc_glyph_info((*glyph_info));
|
|
|
58 |
font_proc_glyph_outline((*glyph_outline));
|
|
|
59 |
} gs_copied_font_procs_t;
|
|
|
60 |
|
|
|
61 |
/*
|
|
|
62 |
* We need to store the Subrs data for Type 1/2 and CIDFontType 0 fonts,
|
|
|
63 |
* and the GlobalSubrs data for all but Type 1.
|
|
|
64 |
*/
|
|
|
65 |
typedef struct gs_subr_info_s {
|
|
|
66 |
byte *data; /* Subr data */
|
|
|
67 |
int count;
|
|
|
68 |
uint *starts; /* [count+1] Subr[i] = data[starts[i]..starts[i+1]] */
|
|
|
69 |
} gs_subr_info_t;
|
|
|
70 |
|
|
|
71 |
/*
|
|
|
72 |
* The glyphs for copied fonts are stored explicitly in a table indexed by
|
|
|
73 |
* glyph number.
|
|
|
74 |
* For Type 1 fonts, the glyph numbers are parallel to the hashed name table.
|
|
|
75 |
* For TrueType fonts, the glyph number is the TrueType GID.
|
|
|
76 |
* For CIDFontType 0 fonts, the glyph number is the CID.
|
|
|
77 |
* For CIDFontType 2 fonts, the glyph number is the TrueType GID;
|
|
|
78 |
* a separate CIDMap array maps CIDs to GIDs.
|
|
|
79 |
*/
|
|
|
80 |
struct gs_copied_glyph_s {
|
|
|
81 |
gs_const_string gdata; /* vector data */
|
|
|
82 |
#define HAS_DATA 1 /* entry is in use */
|
|
|
83 |
/* HAS_SBW* are only used for TT-based fonts */
|
|
|
84 |
#define HAS_SBW0 2 /* has hmtx */
|
|
|
85 |
#define HAS_SBW1 4 /* has vmtx */
|
|
|
86 |
byte used; /* non-zero iff this entry is in use */
|
|
|
87 |
/* (if not, gdata.{data,size} = 0) */
|
|
|
88 |
};
|
|
|
89 |
/*
|
|
|
90 |
* We use a special GC descriptor to avoid large GC overhead.
|
|
|
91 |
*/
|
|
|
92 |
gs_private_st_composite(st_gs_copied_glyph_element, gs_copied_glyph_t,
|
|
|
93 |
"gs_copied_glyph_t[]", copied_glyph_element_enum_ptrs,
|
|
|
94 |
copied_glyph_element_reloc_ptrs);
|
|
|
95 |
private ENUM_PTRS_WITH(copied_glyph_element_enum_ptrs, gs_copied_glyph_t *pcg)
|
|
|
96 |
if (index < size / (uint)sizeof(gs_copied_glyph_t))
|
|
|
97 |
return ENUM_CONST_STRING(&pcg[index].gdata);
|
|
|
98 |
return 0;
|
|
|
99 |
ENUM_PTRS_END
|
|
|
100 |
private RELOC_PTRS_WITH(copied_glyph_element_reloc_ptrs, gs_copied_glyph_t *pcg)
|
|
|
101 |
{
|
|
|
102 |
uint count = size / (uint)sizeof(gs_copied_glyph_t);
|
|
|
103 |
gs_copied_glyph_t *p = pcg;
|
|
|
104 |
|
|
|
105 |
for (; count > 0; --count, ++p)
|
|
|
106 |
if (p->gdata.size > 0)
|
|
|
107 |
RELOC_CONST_STRING_VAR(p->gdata);
|
|
|
108 |
}
|
|
|
109 |
RELOC_PTRS_END
|
|
|
110 |
|
|
|
111 |
/*
|
|
|
112 |
* Type 1 and TrueType fonts also have a 'names' table, parallel to the
|
|
|
113 |
* 'glyphs' table.
|
|
|
114 |
* For Type 1 fonts, this is a hash table; glyph numbers are assigned
|
|
|
115 |
* arbitrarily, according to the hashed placement of the names.
|
|
|
116 |
* For TrueType fonts, this is indexed by GID.
|
|
|
117 |
* The strings in this table are either those returned by the font's
|
|
|
118 |
* glyph_name procedure, which we assume are garbage-collected, or those
|
|
|
119 |
* associated with the known encodings, which we assume are immutable.
|
|
|
120 |
*/
|
|
|
121 |
typedef struct gs_copied_glyph_name_s {
|
|
|
122 |
gs_glyph glyph; /* key (for comparison and glyph_name only) */
|
|
|
123 |
gs_const_string str; /* glyph name */
|
|
|
124 |
} gs_copied_glyph_name_t;
|
|
|
125 |
/*
|
|
|
126 |
* We use the same special GC descriptor as above for 'names'.
|
|
|
127 |
*/
|
|
|
128 |
gs_private_st_composite(st_gs_copied_glyph_name_element,
|
|
|
129 |
gs_copied_glyph_name_t,
|
|
|
130 |
"gs_copied_glyph_name_t[]",
|
|
|
131 |
copied_glyph_name_enum_ptrs,
|
|
|
132 |
copied_glyph_name_reloc_ptrs);
|
|
|
133 |
private ENUM_PTRS_WITH(copied_glyph_name_enum_ptrs, gs_copied_glyph_name_t *pcgn)
|
|
|
134 |
if (index < size / (uint)sizeof(gs_copied_glyph_name_t)) {
|
|
|
135 |
const gs_copied_glyph_name_t *const p = &pcgn[index];
|
|
|
136 |
|
|
|
137 |
return (p->str.size == 0 ||
|
|
|
138 |
gs_is_c_glyph_name(p->str.data, p->str.size) ?
|
|
|
139 |
ENUM_CONST_STRING2(0, 0) :
|
|
|
140 |
ENUM_CONST_STRING(&p->str));
|
|
|
141 |
}
|
|
|
142 |
return 0;
|
|
|
143 |
/* We should mark glyph name here, but we have no access to
|
|
|
144 |
the gs_font_dir instance. Will mark in gs_copied_font_data_enum_ptrs.
|
|
|
145 |
*/
|
|
|
146 |
ENUM_PTRS_END
|
|
|
147 |
private RELOC_PTRS_WITH(copied_glyph_name_reloc_ptrs, gs_copied_glyph_name_t *pcgn)
|
|
|
148 |
{
|
|
|
149 |
uint count = size / (uint)sizeof(gs_copied_glyph_name_t);
|
|
|
150 |
gs_copied_glyph_name_t *p = pcgn;
|
|
|
151 |
|
|
|
152 |
for (; count > 0; --count, ++p)
|
|
|
153 |
if (p->str.size > 0 && !gs_is_c_glyph_name(p->str.data, p->str.size))
|
|
|
154 |
RELOC_CONST_STRING_VAR(p->str);
|
|
|
155 |
}
|
|
|
156 |
RELOC_PTRS_END
|
|
|
157 |
|
|
|
158 |
/*
|
|
|
159 |
* To accommodate glyphs with multiple names, there is an additional
|
|
|
160 |
* 'extra_names' table. Since this is rare, this table uses linear search.
|
|
|
161 |
*/
|
|
|
162 |
typedef struct gs_copied_glyph_extra_name_s gs_copied_glyph_extra_name_t;
|
|
|
163 |
struct gs_copied_glyph_extra_name_s {
|
|
|
164 |
gs_copied_glyph_name_t name;
|
|
|
165 |
uint gid; /* index in glyphs table */
|
|
|
166 |
gs_copied_glyph_extra_name_t *next;
|
|
|
167 |
};
|
|
|
168 |
BASIC_PTRS(gs_copied_glyph_extra_name_ptrs) {
|
|
|
169 |
GC_STRING_ELT(gs_copied_glyph_extra_name_t, name.str),
|
|
|
170 |
GC_OBJ_ELT(gs_copied_glyph_extra_name_t, next)
|
|
|
171 |
};
|
|
|
172 |
gs_private_st_basic(st_gs_copied_glyph_extra_name,
|
|
|
173 |
gs_copied_glyph_extra_name_t,
|
|
|
174 |
"gs_copied_glyph_extra_name_t",
|
|
|
175 |
gs_copied_glyph_extra_name_ptrs,
|
|
|
176 |
gs_copied_glyph_extra_name_data);
|
|
|
177 |
|
|
|
178 |
/*
|
|
|
179 |
* The client_data of copied fonts points to an instance of
|
|
|
180 |
* gs_copied_font_data_t.
|
|
|
181 |
*/
|
|
|
182 |
struct gs_copied_font_data_s {
|
|
|
183 |
gs_font_info_t info; /* from the original font, must be first */
|
|
|
184 |
const gs_copied_font_procs_t *procs;
|
|
|
185 |
gs_copied_glyph_t *glyphs; /* [glyphs_size] */
|
|
|
186 |
uint glyphs_size; /* (a power of 2 or a prime number for Type 1/2) */
|
|
|
187 |
uint num_glyphs; /* The number of glyphs copied. */
|
|
|
188 |
gs_glyph notdef; /* CID 0 or .notdef glyph */
|
|
|
189 |
/*
|
|
|
190 |
* We don't use a union for the rest of the data, because some of the
|
|
|
191 |
* cases overlap and it's just not worth the trouble.
|
|
|
192 |
*/
|
|
|
193 |
gs_copied_glyph_name_t *names; /* (Type 1/2, TrueType) [glyphs_size] */
|
|
|
194 |
gs_copied_glyph_extra_name_t *extra_names; /* (TrueType) */
|
|
|
195 |
byte *data; /* (TrueType and CID fonts) copied data */
|
|
|
196 |
uint data_size; /* (TrueType and CID fonts) */
|
|
|
197 |
gs_glyph *Encoding; /* (Type 1/2 and Type 42) [256] */
|
|
|
198 |
ushort *CIDMap; /* (CIDFontType 2) [CIDCount] */
|
|
|
199 |
gs_subr_info_t subrs; /* (Type 1/2 and CIDFontType 0) */
|
|
|
200 |
gs_subr_info_t global_subrs; /* (Type 2 and CIDFontType 0) */
|
|
|
201 |
gs_font_cid0 *parent; /* (Type 1 subfont) => parent CIDFontType 0 */
|
|
|
202 |
gs_font_dir *dir;
|
|
|
203 |
};
|
|
|
204 |
extern_st(st_gs_font_info);
|
|
|
205 |
private
|
|
|
206 |
ENUM_PTRS_WITH(gs_copied_font_data_enum_ptrs, gs_copied_font_data_t *cfdata)
|
|
|
207 |
if (index == 12) {
|
|
|
208 |
gs_copied_glyph_name_t *names = cfdata->names;
|
|
|
209 |
gs_copied_glyph_extra_name_t *en = cfdata->extra_names;
|
|
|
210 |
int i;
|
|
|
211 |
|
|
|
212 |
if (names != NULL)
|
|
|
213 |
for (i = 0; i < cfdata->glyphs_size; ++i)
|
|
|
214 |
if (names[i].glyph < gs_c_min_std_encoding_glyph)
|
|
|
215 |
cfdata->dir->ccache.mark_glyph(mem, names[i].glyph, NULL);
|
|
|
216 |
for (; en != NULL; en = en->next)
|
|
|
217 |
if (en->name.glyph < gs_c_min_std_encoding_glyph)
|
|
|
218 |
cfdata->dir->ccache.mark_glyph(mem, en->name.glyph, NULL);
|
|
|
219 |
}
|
|
|
220 |
return ENUM_USING(st_gs_font_info, &cfdata->info, sizeof(gs_font_info_t), index - 12);
|
|
|
221 |
ENUM_PTR3(0, gs_copied_font_data_t, glyphs, names, extra_names);
|
|
|
222 |
ENUM_PTR3(3, gs_copied_font_data_t, data, Encoding, CIDMap);
|
|
|
223 |
ENUM_PTR3(6, gs_copied_font_data_t, subrs.data, subrs.starts, global_subrs.data);
|
|
|
224 |
ENUM_PTR3(9, gs_copied_font_data_t, global_subrs.starts, parent, dir);
|
|
|
225 |
ENUM_PTRS_END
|
|
|
226 |
|
|
|
227 |
private RELOC_PTRS_WITH(gs_copied_font_data_reloc_ptrs, gs_copied_font_data_t *cfdata)
|
|
|
228 |
{
|
|
|
229 |
RELOC_PTR3(gs_copied_font_data_t, glyphs, names, extra_names);
|
|
|
230 |
RELOC_PTR3(gs_copied_font_data_t, data, Encoding, CIDMap);
|
|
|
231 |
RELOC_PTR3(gs_copied_font_data_t, subrs.data, subrs.starts, global_subrs.data);
|
|
|
232 |
RELOC_PTR3(gs_copied_font_data_t, global_subrs.starts, parent, dir);
|
|
|
233 |
RELOC_USING(st_gs_font_info, &cfdata->info, sizeof(gs_font_info_t));
|
|
|
234 |
}
|
|
|
235 |
RELOC_PTRS_END
|
|
|
236 |
|
|
|
237 |
gs_private_st_composite(st_gs_copied_font_data, gs_copied_font_data_t, "gs_copied_font_data_t",\
|
|
|
238 |
gs_copied_font_data_enum_ptrs, gs_copied_font_data_reloc_ptrs);
|
|
|
239 |
|
|
|
240 |
inline private gs_copied_font_data_t *
|
|
|
241 |
cf_data(const gs_font *font)
|
|
|
242 |
{
|
|
|
243 |
return (gs_copied_font_data_t *)font->client_data;
|
|
|
244 |
}
|
|
|
245 |
|
|
|
246 |
/* ================ Procedures ================ */
|
|
|
247 |
|
|
|
248 |
/* ---------------- Private utilities ---------------- */
|
|
|
249 |
|
|
|
250 |
/* Copy a string. Return 0 or gs_error_VMerror. */
|
|
|
251 |
private int
|
|
|
252 |
copy_string(gs_memory_t *mem, gs_const_string *pstr, client_name_t cname)
|
|
|
253 |
{
|
|
|
254 |
const byte *data = pstr->data;
|
|
|
255 |
uint size = pstr->size;
|
|
|
256 |
byte *str;
|
|
|
257 |
|
|
|
258 |
if (data == 0)
|
|
|
259 |
return 0; /* empty string */
|
|
|
260 |
str = gs_alloc_string(mem, size, cname);
|
|
|
261 |
pstr->data = str;
|
|
|
262 |
if (str == 0)
|
|
|
263 |
return_error(gs_error_VMerror);
|
|
|
264 |
memcpy(str, data, size);
|
|
|
265 |
return 0;
|
|
|
266 |
}
|
|
|
267 |
|
|
|
268 |
/* Free a copied string. */
|
|
|
269 |
private void
|
|
|
270 |
uncopy_string(gs_memory_t *mem, gs_const_string *pstr, client_name_t cname)
|
|
|
271 |
{
|
|
|
272 |
if (pstr->data)
|
|
|
273 |
gs_free_const_string(mem, pstr->data, pstr->size, cname);
|
|
|
274 |
}
|
|
|
275 |
|
|
|
276 |
/*
|
|
|
277 |
* Allocate an Encoding for a Type 1 or Type 42 font.
|
|
|
278 |
*/
|
|
|
279 |
private int
|
|
|
280 |
copied_Encoding_alloc(gs_font *copied)
|
|
|
281 |
{
|
|
|
282 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
283 |
gs_glyph *Encoding = (gs_glyph *)
|
|
|
284 |
gs_alloc_byte_array(copied->memory, 256, sizeof(*cfdata->Encoding),
|
|
|
285 |
"copy_font_type1(Encoding)");
|
|
|
286 |
int i;
|
|
|
287 |
|
|
|
288 |
if (Encoding == 0)
|
|
|
289 |
return_error(gs_error_VMerror);
|
|
|
290 |
for (i = 0; i < 256; ++i)
|
|
|
291 |
Encoding[i] = GS_NO_GLYPH;
|
|
|
292 |
cfdata->Encoding = Encoding;
|
|
|
293 |
return 0;
|
|
|
294 |
}
|
|
|
295 |
|
|
|
296 |
/*
|
|
|
297 |
* Allocate and set up data copied from a TrueType or CID font.
|
|
|
298 |
* stell(*s) + extra is the length of the data.
|
|
|
299 |
*/
|
|
|
300 |
private int
|
|
|
301 |
copied_data_alloc(gs_font *copied, stream *s, uint extra, int code)
|
|
|
302 |
{
|
|
|
303 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
304 |
uint len = stell(s);
|
|
|
305 |
byte *fdata;
|
|
|
306 |
|
|
|
307 |
if (code < 0)
|
|
|
308 |
return code;
|
|
|
309 |
fdata = gs_alloc_bytes(copied->memory, len + extra, "copied_data_alloc");
|
|
|
310 |
if (fdata == 0)
|
|
|
311 |
return_error(gs_error_VMerror);
|
|
|
312 |
swrite_string(s, fdata, len);
|
|
|
313 |
cfdata->data = fdata;
|
|
|
314 |
cfdata->data_size = len + extra;
|
|
|
315 |
return 0;
|
|
|
316 |
}
|
|
|
317 |
|
|
|
318 |
/*
|
|
|
319 |
* Copy Subrs or GSubrs from a font.
|
|
|
320 |
*/
|
|
|
321 |
private int
|
|
|
322 |
copy_subrs(gs_font_type1 *pfont, bool global, gs_subr_info_t *psi,
|
|
|
323 |
gs_memory_t *mem)
|
|
|
324 |
{
|
|
|
325 |
int i, code;
|
|
|
326 |
uint size;
|
|
|
327 |
gs_glyph_data_t gdata;
|
|
|
328 |
byte *data;
|
|
|
329 |
uint *starts;
|
|
|
330 |
|
|
|
331 |
gdata.memory = pfont->memory;
|
|
|
332 |
/* Scan the font to determine the size of the subrs. */
|
|
|
333 |
for (i = 0, size = 0;
|
|
|
334 |
(code = pfont->data.procs.subr_data(pfont, i, global, &gdata)) !=
|
|
|
335 |
gs_error_rangecheck;
|
|
|
336 |
++i) {
|
|
|
337 |
if (code >= 0) {
|
|
|
338 |
size += gdata.bits.size;
|
|
|
339 |
gs_glyph_data_free(&gdata, "copy_subrs");
|
|
|
340 |
}
|
|
|
341 |
}
|
|
|
342 |
if (size == 0)
|
|
|
343 |
data = 0, starts = 0, i = 0;
|
|
|
344 |
else {
|
|
|
345 |
/* Allocate the copy. */
|
|
|
346 |
data = gs_alloc_bytes(mem, size, "copy_subrs(data)");
|
|
|
347 |
starts = (uint *)gs_alloc_byte_array(mem, i + 1, sizeof(*starts),
|
|
|
348 |
"copy_subrs(starts)");
|
|
|
349 |
if (data == 0 || starts == 0) {
|
|
|
350 |
gs_free_object(mem, starts, "copy_subrs(starts)");
|
|
|
351 |
gs_free_object(mem, data, "copy_subrs(data)");
|
|
|
352 |
return_error(gs_error_VMerror);
|
|
|
353 |
}
|
|
|
354 |
|
|
|
355 |
/* Copy the data. */
|
|
|
356 |
for (i = 0, size = 0;
|
|
|
357 |
(code = pfont->data.procs.subr_data(pfont, i, global, &gdata)) !=
|
|
|
358 |
gs_error_rangecheck;
|
|
|
359 |
++i) {
|
|
|
360 |
starts[i] = size;
|
|
|
361 |
if (code >= 0) {
|
|
|
362 |
memcpy(data + size, gdata.bits.data, gdata.bits.size);
|
|
|
363 |
size += gdata.bits.size;
|
|
|
364 |
gs_glyph_data_free(&gdata, "copy_subrs");
|
|
|
365 |
}
|
|
|
366 |
}
|
|
|
367 |
starts[i] = size;
|
|
|
368 |
}
|
|
|
369 |
|
|
|
370 |
psi->data = data;
|
|
|
371 |
psi->starts = starts;
|
|
|
372 |
psi->count = i;
|
|
|
373 |
return 0;
|
|
|
374 |
}
|
|
|
375 |
|
|
|
376 |
/*
|
|
|
377 |
* Return a pointer to the definition of a copied glyph, accessed either by
|
|
|
378 |
* name or by glyph number. If the glyph is out of range, return
|
|
|
379 |
* gs_error_rangecheck; if the glyph is in range but undefined, store a
|
|
|
380 |
* pointer to the slot where it would be added, which will have gdata.data
|
|
|
381 |
* == 0, and return gs_error_undefined; if the glyph is defined, store the
|
|
|
382 |
* pointer and return 0.
|
|
|
383 |
*/
|
|
|
384 |
private int
|
|
|
385 |
copied_glyph_slot(gs_copied_font_data_t *cfdata, gs_glyph glyph,
|
|
|
386 |
gs_copied_glyph_t **pslot)
|
|
|
387 |
{
|
|
|
388 |
uint gsize = cfdata->glyphs_size;
|
|
|
389 |
|
|
|
390 |
*pslot = 0;
|
|
|
391 |
if (glyph >= GS_MIN_GLYPH_INDEX) {
|
|
|
392 |
/* CIDFontType 2 uses glyph indices for slots. */
|
|
|
393 |
if (glyph - GS_MIN_GLYPH_INDEX >= gsize)
|
|
|
394 |
return_error(gs_error_rangecheck);
|
|
|
395 |
*pslot = &cfdata->glyphs[glyph - GS_MIN_GLYPH_INDEX];
|
|
|
396 |
} else if (glyph >= GS_MIN_CID_GLYPH) {
|
|
|
397 |
/* CIDFontType 0 uses CIDS for slots. */
|
|
|
398 |
if (glyph - GS_MIN_CID_GLYPH >= gsize)
|
|
|
399 |
return_error(gs_error_rangecheck);
|
|
|
400 |
*pslot = &cfdata->glyphs[glyph - GS_MIN_CID_GLYPH];
|
|
|
401 |
} else if (cfdata->names == 0)
|
|
|
402 |
return_error(gs_error_rangecheck);
|
|
|
403 |
else {
|
|
|
404 |
int code = cfdata->procs->named_glyph_slot(cfdata, glyph, pslot);
|
|
|
405 |
|
|
|
406 |
if (code < 0)
|
|
|
407 |
return code;
|
|
|
408 |
}
|
|
|
409 |
if (!(*pslot)->used)
|
|
|
410 |
return_error(gs_error_undefined);
|
|
|
411 |
return 0;
|
|
|
412 |
}
|
|
|
413 |
private int
|
|
|
414 |
named_glyph_slot_none(gs_copied_font_data_t *cfdata, gs_glyph glyph,
|
|
|
415 |
gs_copied_glyph_t **pslot)
|
|
|
416 |
{
|
|
|
417 |
return_error(gs_error_rangecheck);
|
|
|
418 |
}
|
|
|
419 |
private int
|
|
|
420 |
named_glyph_slot_hashed(gs_copied_font_data_t *cfdata, gs_glyph glyph,
|
|
|
421 |
gs_copied_glyph_t **pslot)
|
|
|
422 |
{
|
|
|
423 |
uint gsize = cfdata->glyphs_size;
|
|
|
424 |
gs_copied_glyph_name_t *names = cfdata->names;
|
|
|
425 |
uint hash = (uint)glyph % gsize;
|
|
|
426 |
/*
|
|
|
427 |
* gsize is either a prime number or a power of 2.
|
|
|
428 |
* If it is prime, any positive reprobe below gsize guarantees that we
|
|
|
429 |
* will touch every slot.
|
|
|
430 |
* If it is a power of 2, any odd reprobe guarantees that we
|
|
|
431 |
* will touch every slot.
|
|
|
432 |
*/
|
|
|
433 |
uint hash2 = ((uint)glyph / gsize * 2 + 1) % gsize;
|
|
|
434 |
uint tries = gsize;
|
|
|
435 |
|
|
|
436 |
while (names[hash].str.data != 0 && names[hash].glyph != glyph) {
|
|
|
437 |
hash = (hash + hash2) % gsize;
|
|
|
438 |
if (!tries)
|
|
|
439 |
return gs_error_undefined;
|
|
|
440 |
tries--;
|
|
|
441 |
}
|
|
|
442 |
*pslot = &cfdata->glyphs[hash];
|
|
|
443 |
return 0;
|
|
|
444 |
}
|
|
|
445 |
private int
|
|
|
446 |
named_glyph_slot_linear(gs_copied_font_data_t *cfdata, gs_glyph glyph,
|
|
|
447 |
gs_copied_glyph_t **pslot)
|
|
|
448 |
{
|
|
|
449 |
{
|
|
|
450 |
gs_copied_glyph_name_t *names = cfdata->names;
|
|
|
451 |
int i;
|
|
|
452 |
|
|
|
453 |
for (i = 0; i < cfdata->glyphs_size; ++i)
|
|
|
454 |
if (names[i].glyph == glyph) {
|
|
|
455 |
*pslot = &cfdata->glyphs[i];
|
|
|
456 |
return 0;
|
|
|
457 |
}
|
|
|
458 |
}
|
|
|
459 |
/* This might be a glyph with multiple names. Search extra_names. */
|
|
|
460 |
{
|
|
|
461 |
gs_copied_glyph_extra_name_t *extra_name = cfdata->extra_names;
|
|
|
462 |
|
|
|
463 |
for (; extra_name != 0; extra_name = extra_name->next)
|
|
|
464 |
if (extra_name->name.glyph == glyph) {
|
|
|
465 |
*pslot = &cfdata->glyphs[extra_name->gid];
|
|
|
466 |
return 0;
|
|
|
467 |
}
|
|
|
468 |
}
|
|
|
469 |
return_error(gs_error_rangecheck);
|
|
|
470 |
}
|
|
|
471 |
|
|
|
472 |
/*
|
|
|
473 |
* Add glyph data to the glyph table. This handles copying the vector
|
|
|
474 |
* data, detecting attempted redefinitions, and freeing temporary glyph
|
|
|
475 |
* data. The glyph must be an integer, an index in the glyph table.
|
|
|
476 |
* Return 1 if the glyph was already defined, 0 if newly added (or an
|
|
|
477 |
* error per options).
|
|
|
478 |
*/
|
|
|
479 |
private int
|
|
|
480 |
copy_glyph_data(gs_font *font, gs_glyph glyph, gs_font *copied, int options,
|
|
|
481 |
gs_glyph_data_t *pgdata, const byte *prefix, int prefix_bytes)
|
|
|
482 |
{
|
|
|
483 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
484 |
uint size = pgdata->bits.size;
|
|
|
485 |
gs_copied_glyph_t *pcg = 0;
|
|
|
486 |
int code = copied_glyph_slot(cfdata, glyph, &pcg);
|
|
|
487 |
|
|
|
488 |
switch (code) {
|
|
|
489 |
case 0: /* already defined */
|
|
|
490 |
if ((options & COPY_GLYPH_NO_OLD) ||
|
|
|
491 |
pcg->gdata.size != prefix_bytes + size ||
|
|
|
492 |
memcmp(pcg->gdata.data, prefix, prefix_bytes) ||
|
|
|
493 |
memcmp(pcg->gdata.data + prefix_bytes,
|
|
|
494 |
pgdata->bits.data, size)
|
|
|
495 |
)
|
|
|
496 |
code = gs_note_error(gs_error_invalidaccess);
|
|
|
497 |
else
|
|
|
498 |
code = 1;
|
|
|
499 |
break;
|
|
|
500 |
case gs_error_undefined:
|
|
|
501 |
if (options & COPY_GLYPH_NO_NEW)
|
|
|
502 |
code = gs_note_error(gs_error_undefined);
|
|
|
503 |
else if (pcg == NULL)
|
|
|
504 |
code = gs_note_error(gs_error_undefined);
|
|
|
505 |
else {
|
|
|
506 |
uint str_size = prefix_bytes + size;
|
|
|
507 |
byte *str = gs_alloc_string(copied->memory, str_size,
|
|
|
508 |
"copy_glyph_data(data)");
|
|
|
509 |
|
|
|
510 |
if (str == 0)
|
|
|
511 |
code = gs_note_error(gs_error_VMerror);
|
|
|
512 |
else {
|
|
|
513 |
if (prefix_bytes)
|
|
|
514 |
memcpy(str, prefix, prefix_bytes);
|
|
|
515 |
memcpy(str + prefix_bytes, pgdata->bits.data, size);
|
|
|
516 |
pcg->gdata.data = str;
|
|
|
517 |
pcg->gdata.size = str_size;
|
|
|
518 |
pcg->used = HAS_DATA;
|
|
|
519 |
code = 0;
|
|
|
520 |
cfdata->num_glyphs++;
|
|
|
521 |
}
|
|
|
522 |
}
|
|
|
523 |
default:
|
|
|
524 |
break;
|
|
|
525 |
}
|
|
|
526 |
gs_glyph_data_free(pgdata, "copy_glyph_data");
|
|
|
527 |
return code;
|
|
|
528 |
}
|
|
|
529 |
|
|
|
530 |
/*
|
|
|
531 |
* Copy a glyph name into the names table.
|
|
|
532 |
*/
|
|
|
533 |
private int
|
|
|
534 |
copy_glyph_name(gs_font *font, gs_glyph glyph, gs_font *copied,
|
|
|
535 |
gs_glyph copied_glyph)
|
|
|
536 |
{
|
|
|
537 |
gs_glyph known_glyph;
|
|
|
538 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
539 |
gs_copied_glyph_t *pcg;
|
|
|
540 |
int code = copied_glyph_slot(cfdata, copied_glyph, &pcg);
|
|
|
541 |
gs_copied_glyph_name_t *pcgn;
|
|
|
542 |
gs_const_string str;
|
|
|
543 |
|
|
|
544 |
if (code < 0 ||
|
|
|
545 |
(code = font->procs.glyph_name(font, glyph, &str)) < 0
|
|
|
546 |
)
|
|
|
547 |
return code;
|
|
|
548 |
/* Try to share a permanently allocated known glyph name. */
|
|
|
549 |
if ((known_glyph = gs_c_name_glyph(str.data, str.size)) != GS_NO_GLYPH)
|
|
|
550 |
gs_c_glyph_name(known_glyph, &str);
|
|
|
551 |
else if ((code = copy_string(copied->memory, &str, "copy_glyph_name")) < 0)
|
|
|
552 |
return code;
|
|
|
553 |
pcgn = cfdata->names + (pcg - cfdata->glyphs);
|
|
|
554 |
if (pcgn->glyph != GS_NO_GLYPH &&
|
|
|
555 |
(pcgn->str.size != str.size ||
|
|
|
556 |
memcmp(pcgn->str.data, str.data, str.size))
|
|
|
557 |
) {
|
|
|
558 |
/* This is a glyph with multiple names. Add an extra_name entry. */
|
|
|
559 |
gs_copied_glyph_extra_name_t *extra_name =
|
|
|
560 |
gs_alloc_struct(copied->memory, gs_copied_glyph_extra_name_t,
|
|
|
561 |
&st_gs_copied_glyph_extra_name,
|
|
|
562 |
"copy_glyph_name(extra_name)");
|
|
|
563 |
|
|
|
564 |
if (extra_name == 0)
|
|
|
565 |
return_error(gs_error_VMerror);
|
|
|
566 |
extra_name->next = cfdata->extra_names;
|
|
|
567 |
extra_name->gid = pcg - cfdata->glyphs;
|
|
|
568 |
cfdata->extra_names = extra_name;
|
|
|
569 |
pcgn = &extra_name->name;
|
|
|
570 |
}
|
|
|
571 |
pcgn->glyph = glyph;
|
|
|
572 |
pcgn->str = str;
|
|
|
573 |
return 0;
|
|
|
574 |
}
|
|
|
575 |
|
|
|
576 |
/*
|
|
|
577 |
* Find the .notdef glyph in a font.
|
|
|
578 |
*/
|
|
|
579 |
private gs_glyph
|
|
|
580 |
find_notdef(gs_font_base *font)
|
|
|
581 |
{
|
|
|
582 |
int index = 0;
|
|
|
583 |
gs_glyph glyph;
|
|
|
584 |
|
|
|
585 |
while (font->procs.enumerate_glyph((gs_font *)font, &index,
|
|
|
586 |
GLYPH_SPACE_NAME, &glyph),
|
|
|
587 |
index != 0)
|
|
|
588 |
if (gs_font_glyph_is_notdef(font, glyph))
|
|
|
589 |
return glyph;
|
|
|
590 |
return GS_NO_GLYPH; /* best we can do */
|
|
|
591 |
}
|
|
|
592 |
|
|
|
593 |
/*
|
|
|
594 |
* Add an Encoding entry to a character-indexed font (Type 1/2/42).
|
|
|
595 |
*/
|
|
|
596 |
private int
|
|
|
597 |
copied_char_add_encoding(gs_font *copied, gs_char chr, gs_glyph glyph)
|
|
|
598 |
{
|
|
|
599 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
600 |
gs_glyph *Encoding = cfdata->Encoding;
|
|
|
601 |
gs_copied_glyph_t *pslot;
|
|
|
602 |
int code;
|
|
|
603 |
|
|
|
604 |
if (Encoding == 0)
|
|
|
605 |
return_error(gs_error_invalidaccess);
|
|
|
606 |
if (chr >= 256 || glyph >= GS_MIN_CID_GLYPH)
|
|
|
607 |
return_error(gs_error_rangecheck);
|
|
|
608 |
code = copied_glyph_slot(cfdata, glyph, &pslot);
|
|
|
609 |
if (code < 0)
|
|
|
610 |
return code;
|
|
|
611 |
if (Encoding[chr] != glyph && Encoding[chr] != GS_NO_GLYPH)
|
|
|
612 |
return_error(gs_error_invalidaccess);
|
|
|
613 |
Encoding[chr] = glyph;
|
|
|
614 |
return 0;
|
|
|
615 |
}
|
|
|
616 |
|
|
|
617 |
/* Don't allow adding an Encoding entry. */
|
|
|
618 |
private int
|
|
|
619 |
copied_no_add_encoding(gs_font *copied, gs_char chr, gs_glyph glyph)
|
|
|
620 |
{
|
|
|
621 |
return_error(gs_error_invalidaccess);
|
|
|
622 |
}
|
|
|
623 |
|
|
|
624 |
/* ---------------- Font procedures ---------------- */
|
|
|
625 |
|
|
|
626 |
private int
|
|
|
627 |
copied_font_info(gs_font *font, const gs_point *pscale, int members,
|
|
|
628 |
gs_font_info_t *info)
|
|
|
629 |
{
|
|
|
630 |
if (pscale != 0)
|
|
|
631 |
return_error(gs_error_rangecheck);
|
|
|
632 |
*info = cf_data(font)->info;
|
|
|
633 |
return 0;
|
|
|
634 |
}
|
|
|
635 |
|
|
|
636 |
private gs_glyph
|
|
|
637 |
copied_encode_char(gs_font *copied, gs_char chr, gs_glyph_space_t glyph_space)
|
|
|
638 |
{
|
|
|
639 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
640 |
const gs_glyph *Encoding = cfdata->Encoding;
|
|
|
641 |
|
|
|
642 |
if (chr >= 256 || Encoding == 0)
|
|
|
643 |
return GS_NO_GLYPH;
|
|
|
644 |
return Encoding[chr];
|
|
|
645 |
}
|
|
|
646 |
|
|
|
647 |
private int
|
|
|
648 |
copied_enumerate_glyph(gs_font *font, int *pindex,
|
|
|
649 |
gs_glyph_space_t glyph_space, gs_glyph *pglyph)
|
|
|
650 |
{
|
|
|
651 |
gs_copied_font_data_t *const cfdata = cf_data(font);
|
|
|
652 |
|
|
|
653 |
for (; *pindex < cfdata->glyphs_size; ++*pindex)
|
|
|
654 |
if (cfdata->glyphs[*pindex].used) {
|
|
|
655 |
*pglyph =
|
|
|
656 |
(glyph_space == GLYPH_SPACE_NAME && cfdata->names != 0 ?
|
|
|
657 |
cfdata->names[*pindex].glyph :
|
|
|
658 |
/* CIDFontType 0 uses CIDS as slot indices; CIDFontType 2 uses GIDs. */
|
|
|
659 |
*pindex + (glyph_space == GLYPH_SPACE_NAME
|
|
|
660 |
? GS_MIN_CID_GLYPH : GS_MIN_GLYPH_INDEX));
|
|
|
661 |
++(*pindex);
|
|
|
662 |
return 0;
|
|
|
663 |
}
|
|
|
664 |
*pindex = 0;
|
|
|
665 |
return 0;
|
|
|
666 |
}
|
|
|
667 |
|
|
|
668 |
private int
|
|
|
669 |
copied_glyph_name(gs_font *font, gs_glyph glyph, gs_const_string *pstr)
|
|
|
670 |
{
|
|
|
671 |
gs_copied_font_data_t *const cfdata = cf_data(font);
|
|
|
672 |
gs_copied_glyph_t *pcg;
|
|
|
673 |
|
|
|
674 |
if (glyph >= GS_MIN_CID_GLYPH)
|
|
|
675 |
return_error(gs_error_rangecheck);
|
|
|
676 |
if (copied_glyph_slot(cfdata, glyph, &pcg) < 0)
|
|
|
677 |
return_error(gs_error_undefined);
|
|
|
678 |
*pstr = cfdata->names[pcg - cfdata->glyphs].str;
|
|
|
679 |
return 0;
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
private int
|
|
|
683 |
copied_build_char(gs_text_enum_t *pte, gs_state *pgs, gs_font *font,
|
|
|
684 |
gs_char chr, gs_glyph glyph)
|
|
|
685 |
{
|
|
|
686 |
int wmode = font->WMode;
|
|
|
687 |
int code;
|
|
|
688 |
gs_glyph_info_t info;
|
|
|
689 |
double wxy[6];
|
|
|
690 |
double sbw_stub[4]; /* Currently glyph_outline retrieves sbw only with type 1,2,9 fonts. */
|
|
|
691 |
|
|
|
692 |
if (glyph == GS_NO_GLYPH) {
|
|
|
693 |
glyph = font->procs.encode_char(font, chr, GLYPH_SPACE_INDEX);
|
|
|
694 |
if (glyph == GS_NO_GLYPH) {
|
|
|
695 |
glyph = cf_data(font)->notdef;
|
|
|
696 |
}
|
|
|
697 |
}
|
|
|
698 |
/*
|
|
|
699 |
* Type 1/2 outlines don't require a current point, but TrueType
|
|
|
700 |
* outlines do. We might want to fix this someday....
|
|
|
701 |
*/
|
|
|
702 |
if ((code = gs_moveto(pgs, 0.0, 0.0)) < 0 ||
|
|
|
703 |
(code = font->procs.glyph_info(font, glyph, NULL,
|
|
|
704 |
(GLYPH_INFO_WIDTH << wmode) |
|
|
|
705 |
GLYPH_INFO_BBOX |
|
|
|
706 |
GLYPH_INFO_OUTLINE_WIDTHS,
|
|
|
707 |
&info)) < 0
|
|
|
708 |
)
|
|
|
709 |
return code;
|
|
|
710 |
wxy[0] = info.width[wmode].x;
|
|
|
711 |
wxy[1] = info.width[wmode].y;
|
|
|
712 |
wxy[2] = info.bbox.p.x;
|
|
|
713 |
wxy[3] = info.bbox.p.y;
|
|
|
714 |
wxy[4] = info.bbox.q.x;
|
|
|
715 |
wxy[5] = info.bbox.q.y;
|
|
|
716 |
if ((code = gs_text_setcachedevice(pte, wxy)) < 0 ||
|
|
|
717 |
(code = font->procs.glyph_outline(font, wmode, glyph, &ctm_only(pgs),
|
|
|
718 |
pgs->path, sbw_stub)) < 0
|
|
|
719 |
)
|
|
|
720 |
return code;
|
|
|
721 |
if (font->PaintType != 0) {
|
|
|
722 |
gs_setlinewidth(pgs, font->StrokeWidth);
|
|
|
723 |
return gs_stroke(pgs);
|
|
|
724 |
} else {
|
|
|
725 |
return gs_fill(pgs);
|
|
|
726 |
}
|
|
|
727 |
}
|
|
|
728 |
|
|
|
729 |
private inline bool
|
|
|
730 |
compare_arrays(const float *v0, int l0, const float *v1, int l1)
|
|
|
731 |
{
|
|
|
732 |
if (l0 != l1)
|
|
|
733 |
return false;
|
|
|
734 |
if (memcmp(v0, v1, l0 * sizeof(v0[0])))
|
|
|
735 |
return false;
|
|
|
736 |
return true;
|
|
|
737 |
}
|
|
|
738 |
|
|
|
739 |
#define compare_tables(a, b) compare_arrays(a.values, a.count, b.values, b.count)
|
|
|
740 |
|
|
|
741 |
private int
|
|
|
742 |
compare_glyphs(const gs_font *cfont, const gs_font *ofont, gs_glyph *glyphs,
|
|
|
743 |
int num_glyphs, int glyphs_step, int level)
|
|
|
744 |
{
|
|
|
745 |
/*
|
|
|
746 |
* Checking widths because we can synthesize fonts from random fonts
|
|
|
747 |
* having same FontName and FontType.
|
|
|
748 |
* We must request width explicitely because Type 42 stores widths
|
|
|
749 |
* separately from outline data. We could skip it for Type 1, which doesn't.
|
|
|
750 |
* We don't care of Metrics, Metrics2 because copied font never has them.
|
|
|
751 |
*/
|
|
|
752 |
int i, WMode = ofont->WMode;
|
|
|
753 |
int members = (GLYPH_INFO_WIDTH0 << WMode) | GLYPH_INFO_OUTLINE_WIDTHS | GLYPH_INFO_NUM_PIECES;
|
|
|
754 |
gs_matrix mat;
|
|
|
755 |
gs_copied_font_data_t *const cfdata = cf_data(cfont);
|
|
|
756 |
int num_new_glyphs = 0;
|
|
|
757 |
|
|
|
758 |
gs_make_identity(&mat);
|
|
|
759 |
for (i = 0; i < num_glyphs; i++) {
|
|
|
760 |
gs_glyph glyph = *(gs_glyph *)((byte *)glyphs + i * glyphs_step);
|
|
|
761 |
gs_glyph pieces0[40], *pieces = pieces0;
|
|
|
762 |
gs_glyph_info_t info0, info1;
|
|
|
763 |
int code0 = ofont->procs.glyph_info((gs_font *)ofont, glyph, &mat, members, &info0);
|
|
|
764 |
int code1 = cfont->procs.glyph_info((gs_font *)cfont, glyph, &mat, members, &info1);
|
|
|
765 |
int code2, code;
|
|
|
766 |
|
|
|
767 |
if (code0 == gs_error_undefined)
|
|
|
768 |
continue;
|
|
|
769 |
if (code1 == gs_error_undefined) {
|
|
|
770 |
num_new_glyphs++;
|
|
|
771 |
if (num_new_glyphs > cfdata->glyphs_size - cfdata->num_glyphs)
|
|
|
772 |
return 0;
|
|
|
773 |
continue;
|
|
|
774 |
}
|
|
|
775 |
if (code0 < 0)
|
|
|
776 |
return code0;
|
|
|
777 |
if (code1 < 0)
|
|
|
778 |
return code1;
|
|
|
779 |
if (info0.num_pieces != info1.num_pieces)
|
|
|
780 |
return 0;
|
|
|
781 |
if (info0.width[WMode].x != info1.width[WMode].x ||
|
|
|
782 |
info0.width[WMode].y != info1.width[WMode].y)
|
|
|
783 |
return 0;
|
|
|
784 |
if (WMode && (info0.v.x != info1.v.x || info0.v.y != info1.v.y))
|
|
|
785 |
return 0;
|
|
|
786 |
if (info0.num_pieces > 0) {
|
|
|
787 |
if(level > 5)
|
|
|
788 |
return_error(gs_error_rangecheck); /* abnormal glyph recursion */
|
|
|
789 |
if (info0.num_pieces > countof(pieces0) / 2) {
|
|
|
790 |
pieces = (gs_glyph *)gs_alloc_bytes(cfont->memory,
|
|
|
791 |
sizeof(glyphs) * info0.num_pieces * 2, "compare_glyphs");
|
|
|
792 |
if (pieces == 0)
|
|
|
793 |
return_error(gs_error_VMerror);
|
|
|
794 |
}
|
|
|
795 |
info0.pieces = pieces;
|
|
|
796 |
info1.pieces = pieces + info0.num_pieces;
|
|
|
797 |
code0 = ofont->procs.glyph_info((gs_font *)ofont, glyph, &mat,
|
|
|
798 |
GLYPH_INFO_PIECES, &info0);
|
|
|
799 |
code1 = cfont->procs.glyph_info((gs_font *)cfont, glyph, &mat,
|
|
|
800 |
GLYPH_INFO_PIECES, &info1);
|
|
|
801 |
if (code0 >= 0 && code1 >= 0) {
|
|
|
802 |
code2 = memcmp(info0.pieces, info1.pieces, info0.num_pieces * sizeof(*pieces));
|
|
|
803 |
if (!code2)
|
|
|
804 |
code = compare_glyphs(cfont, ofont, pieces, info0.num_pieces, glyphs_step, level + 1);
|
|
|
805 |
else
|
|
|
806 |
code = 0; /* Quiet compiler. */
|
|
|
807 |
} else
|
|
|
808 |
code2 = code = 0;
|
|
|
809 |
if (pieces != pieces0)
|
|
|
810 |
gs_free_object(cfont->memory, pieces, "compare_glyphs");
|
|
|
811 |
if (code0 == gs_error_undefined)
|
|
|
812 |
continue;
|
|
|
813 |
if (code1 == gs_error_undefined) {
|
|
|
814 |
num_new_glyphs++;
|
|
|
815 |
if (num_new_glyphs > cfdata->glyphs_size - cfdata->num_glyphs)
|
|
|
816 |
return 0;
|
|
|
817 |
continue;
|
|
|
818 |
}
|
|
|
819 |
if (code0 < 0)
|
|
|
820 |
return code0;
|
|
|
821 |
if (code1 < 0)
|
|
|
822 |
return code1;
|
|
|
823 |
if (code2 || code == 0) {
|
|
|
824 |
return 0;
|
|
|
825 |
}
|
|
|
826 |
} else {
|
|
|
827 |
gs_glyph_data_t gdata0, gdata1;
|
|
|
828 |
|
|
|
829 |
switch(cfont->FontType) {
|
|
|
830 |
case ft_encrypted:
|
|
|
831 |
case ft_encrypted2: {
|
|
|
832 |
gs_font_type1 *font0 = (gs_font_type1 *)cfont;
|
|
|
833 |
gs_font_type1 *font1 = (gs_font_type1 *)ofont;
|
|
|
834 |
|
|
|
835 |
gdata0.memory = font0->memory;
|
|
|
836 |
gdata1.memory = font1->memory;
|
|
|
837 |
code0 = font0->data.procs.glyph_data(font0, glyph, &gdata0);
|
|
|
838 |
code1 = font1->data.procs.glyph_data(font1, glyph, &gdata1);
|
|
|
839 |
break;
|
|
|
840 |
}
|
|
|
841 |
case ft_TrueType:
|
|
|
842 |
case ft_CID_TrueType: {
|
|
|
843 |
gs_font_type42 *font0 = (gs_font_type42 *)cfont;
|
|
|
844 |
gs_font_type42 *font1 = (gs_font_type42 *)ofont;
|
|
|
845 |
uint glyph_index0 = font0->data.get_glyph_index(font0, glyph);
|
|
|
846 |
uint glyph_index1 = font1->data.get_glyph_index(font1, glyph);
|
|
|
847 |
|
|
|
848 |
gdata0.memory = font0->memory;
|
|
|
849 |
gdata1.memory = font1->memory;
|
|
|
850 |
code0 = font0->data.get_outline(font0, glyph_index0, &gdata0);
|
|
|
851 |
code1 = font1->data.get_outline(font1, glyph_index1, &gdata1);
|
|
|
852 |
break;
|
|
|
853 |
}
|
|
|
854 |
case ft_CID_encrypted: {
|
|
|
855 |
gs_font_cid0 *font0 = (gs_font_cid0 *)cfont;
|
|
|
856 |
gs_font_cid0 *font1 = (gs_font_cid0 *)ofont;
|
|
|
857 |
int fidx0, fidx1;
|
|
|
858 |
|
|
|
859 |
gdata0.memory = font0->memory;
|
|
|
860 |
gdata1.memory = font1->memory;
|
|
|
861 |
code0 = font0->cidata.glyph_data((gs_font_base *)font0, glyph, &gdata0, &fidx0);
|
|
|
862 |
code1 = font1->cidata.glyph_data((gs_font_base *)font1, glyph, &gdata1, &fidx1);
|
|
|
863 |
break;
|
|
|
864 |
}
|
|
|
865 |
default:
|
|
|
866 |
return_error(gs_error_unregistered); /* unimplemented */
|
|
|
867 |
}
|
|
|
868 |
if (code0 < 0) {
|
|
|
869 |
if (code1 >= 0)
|
|
|
870 |
gs_glyph_data_free(&gdata1, "compare_glyphs");
|
|
|
871 |
return code0;
|
|
|
872 |
}
|
|
|
873 |
if (code1 < 0) {
|
|
|
874 |
if (code0 >= 0)
|
|
|
875 |
gs_glyph_data_free(&gdata0, "compare_glyphs");
|
|
|
876 |
return code1;
|
|
|
877 |
}
|
|
|
878 |
if (gdata0.bits.size != gdata1.bits.size)
|
|
|
879 |
return 0;
|
|
|
880 |
if (memcmp(gdata0.bits.data, gdata0.bits.data, gdata0.bits.size))
|
|
|
881 |
return 0;
|
|
|
882 |
gs_glyph_data_free(&gdata0, "compare_glyphs");
|
|
|
883 |
gs_glyph_data_free(&gdata1, "compare_glyphs");
|
|
|
884 |
}
|
|
|
885 |
}
|
|
|
886 |
return 1;
|
|
|
887 |
}
|
|
|
888 |
|
|
|
889 |
/* ---------------- Individual FontTypes ---------------- */
|
|
|
890 |
|
|
|
891 |
/* ------ Type 1 ------ */
|
|
|
892 |
|
|
|
893 |
private int
|
|
|
894 |
copied_type1_glyph_data(gs_font_type1 * pfont, gs_glyph glyph,
|
|
|
895 |
gs_glyph_data_t *pgd)
|
|
|
896 |
{
|
|
|
897 |
gs_copied_font_data_t *const cfdata = cf_data((gs_font *)pfont);
|
|
|
898 |
gs_copied_glyph_t *pslot;
|
|
|
899 |
int code = copied_glyph_slot(cfdata, glyph, &pslot);
|
|
|
900 |
|
|
|
901 |
if (code < 0)
|
|
|
902 |
return code;
|
|
|
903 |
gs_glyph_data_from_string(pgd, pslot->gdata.data, pslot->gdata.size,
|
|
|
904 |
NULL);
|
|
|
905 |
return 0;
|
|
|
906 |
}
|
|
|
907 |
|
|
|
908 |
private int
|
|
|
909 |
copied_type1_subr_data(gs_font_type1 * pfont, int subr_num, bool global,
|
|
|
910 |
gs_glyph_data_t *pgd)
|
|
|
911 |
{
|
|
|
912 |
gs_copied_font_data_t *const cfdata = cf_data((gs_font *)pfont);
|
|
|
913 |
const gs_subr_info_t *psi =
|
|
|
914 |
(global ? &cfdata->global_subrs : &cfdata->subrs);
|
|
|
915 |
|
|
|
916 |
if (subr_num < 0 || subr_num >= psi->count)
|
|
|
917 |
return_error(gs_error_rangecheck);
|
|
|
918 |
gs_glyph_data_from_string(pgd, psi->data + psi->starts[subr_num],
|
|
|
919 |
psi->starts[subr_num + 1] -
|
|
|
920 |
psi->starts[subr_num],
|
|
|
921 |
NULL);
|
|
|
922 |
return 0;
|
|
|
923 |
}
|
|
|
924 |
|
|
|
925 |
private int
|
|
|
926 |
copied_type1_seac_data(gs_font_type1 * pfont, int ccode,
|
|
|
927 |
gs_glyph * pglyph, gs_const_string *gstr, gs_glyph_data_t *pgd)
|
|
|
928 |
{
|
|
|
929 |
/*
|
|
|
930 |
* This can only be invoked if the components have already been
|
|
|
931 |
* copied to their proper positions, so it is simple.
|
|
|
932 |
*/
|
|
|
933 |
gs_glyph glyph = gs_c_known_encode((gs_char)ccode, ENCODING_INDEX_STANDARD);
|
|
|
934 |
gs_glyph glyph1;
|
|
|
935 |
int code;
|
|
|
936 |
|
|
|
937 |
if (glyph == GS_NO_GLYPH)
|
|
|
938 |
return_error(gs_error_rangecheck);
|
|
|
939 |
code = gs_c_glyph_name(glyph, gstr);
|
|
|
940 |
if (code < 0)
|
|
|
941 |
return code;
|
|
|
942 |
code = pfont->dir->global_glyph_code(pfont->memory, gstr, &glyph1);
|
|
|
943 |
if (code < 0)
|
|
|
944 |
return code;
|
|
|
945 |
if (pglyph)
|
|
|
946 |
*pglyph = glyph1;
|
|
|
947 |
if (pgd)
|
|
|
948 |
return copied_type1_glyph_data(pfont, glyph1, pgd);
|
|
|
949 |
else
|
|
|
950 |
return 0;
|
|
|
951 |
}
|
|
|
952 |
|
|
|
953 |
private int
|
|
|
954 |
copied_type1_push_values(void *callback_data, const fixed *values, int count)
|
|
|
955 |
{
|
|
|
956 |
return_error(gs_error_unregistered);
|
|
|
957 |
}
|
|
|
958 |
|
|
|
959 |
private int
|
|
|
960 |
copied_type1_pop_value(void *callback_data, fixed *value)
|
|
|
961 |
{
|
|
|
962 |
return_error(gs_error_unregistered);
|
|
|
963 |
}
|
|
|
964 |
|
|
|
965 |
private int
|
|
|
966 |
copy_font_type1(gs_font *font, gs_font *copied)
|
|
|
967 |
{
|
|
|
968 |
gs_font_type1 *font1 = (gs_font_type1 *)font;
|
|
|
969 |
gs_font_type1 *copied1 = (gs_font_type1 *)copied;
|
|
|
970 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
971 |
int code;
|
|
|
972 |
|
|
|
973 |
cfdata->notdef = find_notdef((gs_font_base *)font);
|
|
|
974 |
code = copied_Encoding_alloc(copied);
|
|
|
975 |
if (code < 0)
|
|
|
976 |
return code;
|
|
|
977 |
if ((code = copy_subrs(font1, false, &cfdata->subrs, copied->memory)) < 0 ||
|
|
|
978 |
(code = copy_subrs(font1, true, &cfdata->global_subrs, copied->memory)) < 0
|
|
|
979 |
) {
|
|
|
980 |
gs_free_object(copied->memory, cfdata->Encoding,
|
|
|
981 |
"copy_font_type1(Encoding)");
|
|
|
982 |
return code;
|
|
|
983 |
}
|
|
|
984 |
/*
|
|
|
985 |
* We don't need real push/pop procedures, because we can't do anything
|
|
|
986 |
* useful with fonts that have non-standard OtherSubrs anyway.
|
|
|
987 |
*/
|
|
|
988 |
copied1->data.procs.glyph_data = copied_type1_glyph_data;
|
|
|
989 |
copied1->data.procs.subr_data = copied_type1_subr_data;
|
|
|
990 |
copied1->data.procs.seac_data = copied_type1_seac_data;
|
|
|
991 |
copied1->data.procs.push_values = copied_type1_push_values;
|
|
|
992 |
copied1->data.procs.pop_value = copied_type1_pop_value;
|
|
|
993 |
copied1->data.proc_data = 0;
|
|
|
994 |
return 0;
|
|
|
995 |
}
|
|
|
996 |
|
|
|
997 |
private int
|
|
|
998 |
copy_glyph_type1(gs_font *font, gs_glyph glyph, gs_font *copied, int options)
|
|
|
999 |
{
|
|
|
1000 |
gs_glyph_data_t gdata;
|
|
|
1001 |
gs_font_type1 *font1 = (gs_font_type1 *)font;
|
|
|
1002 |
int code;
|
|
|
1003 |
int rcode;
|
|
|
1004 |
|
|
|
1005 |
gdata.memory = font->memory;
|
|
|
1006 |
code = font1->data.procs.glyph_data(font1, glyph, &gdata);
|
|
|
1007 |
if (code < 0)
|
|
|
1008 |
return code;
|
|
|
1009 |
code = copy_glyph_data(font, glyph, copied, options, &gdata, NULL, 0);
|
|
|
1010 |
if (code < 0)
|
|
|
1011 |
return code;
|
|
|
1012 |
rcode = code;
|
|
|
1013 |
if (code == 0)
|
|
|
1014 |
code = copy_glyph_name(font, glyph, copied, glyph);
|
|
|
1015 |
return (code < 0 ? code : rcode);
|
|
|
1016 |
}
|
|
|
1017 |
|
|
|
1018 |
private int
|
|
|
1019 |
copied_type1_glyph_outline(gs_font *font, int WMode, gs_glyph glyph,
|
|
|
1020 |
const gs_matrix *pmat, gx_path *ppath, double sbw[4])
|
|
|
1021 |
{ /*
|
|
|
1022 |
* 'WMode' may be inherited from an upper font.
|
|
|
1023 |
* We ignore in because Type 1,2 charstrings do not depend on it.
|
|
|
1024 |
*/
|
|
|
1025 |
|
|
|
1026 |
/*
|
|
|
1027 |
* This code duplicates much of zcharstring_outline in zchar1.c.
|
|
|
1028 |
* This is unfortunate, but we don't see a simple way to refactor the
|
|
|
1029 |
* code to avoid it.
|
|
|
1030 |
*/
|
|
|
1031 |
gs_glyph_data_t gdata;
|
|
|
1032 |
gs_font_type1 *const pfont1 = (gs_font_type1 *)font;
|
|
|
1033 |
int code;
|
|
|
1034 |
const gs_glyph_data_t *pgd = &gdata;
|
|
|
1035 |
gs_type1_state cis;
|
|
|
1036 |
gs_imager_state gis;
|
|
|
1037 |
|
|
|
1038 |
gdata.memory = pfont1->memory;
|
|
|
1039 |
code = pfont1->data.procs.glyph_data(pfont1, glyph, &gdata);
|
|
|
1040 |
if (code < 0)
|
|
|
1041 |
return code;
|
|
|
1042 |
if (pgd->bits.size <= max(pfont1->data.lenIV, 0))
|
|
|
1043 |
return_error(gs_error_invalidfont);
|
|
|
1044 |
/* Initialize just enough of the imager state. */
|
|
|
1045 |
if (pmat)
|
|
|
1046 |
gs_matrix_fixed_from_matrix(&gis.ctm, pmat);
|
|
|
1047 |
else {
|
|
|
1048 |
gs_matrix imat;
|
|
|
1049 |
|
|
|
1050 |
gs_make_identity(&imat);
|
|
|
1051 |
gs_matrix_fixed_from_matrix(&gis.ctm, &imat);
|
|
|
1052 |
}
|
|
|
1053 |
gis.flatness = 0;
|
|
|
1054 |
code = gs_type1_interp_init(&cis, &gis, ppath, NULL, NULL, true, 0,
|
|
|
1055 |
pfont1);
|
|
|
1056 |
if (code < 0)
|
|
|
1057 |
return code;
|
|
|
1058 |
cis.no_grid_fitting = true;
|
|
|
1059 |
/* Continue interpreting. */
|
|
|
1060 |
for (;;) {
|
|
|
1061 |
int value;
|
|
|
1062 |
|
|
|
1063 |
code = pfont1->data.interpret(&cis, pgd, &value);
|
|
|
1064 |
switch (code) {
|
|
|
1065 |
case 0: /* all done */
|
|
|
1066 |
/* falls through */
|
|
|
1067 |
default: /* code < 0, error */
|
|
|
1068 |
return code;
|
|
|
1069 |
case type1_result_callothersubr: /* unknown OtherSubr */
|
|
|
1070 |
return_error(gs_error_rangecheck); /* can't handle it */
|
|
|
1071 |
case type1_result_sbw: /* [h]sbw, just continue */
|
|
|
1072 |
pgd = 0;
|
|
|
1073 |
type1_cis_get_metrics(&cis, sbw);
|
|
|
1074 |
}
|
|
|
1075 |
}
|
|
|
1076 |
}
|
|
|
1077 |
|
|
|
1078 |
private const gs_copied_font_procs_t copied_procs_type1 = {
|
|
|
1079 |
copy_font_type1, copy_glyph_type1, copied_char_add_encoding,
|
|
|
1080 |
named_glyph_slot_hashed,
|
|
|
1081 |
copied_encode_char, gs_type1_glyph_info, copied_type1_glyph_outline
|
|
|
1082 |
};
|
|
|
1083 |
|
|
|
1084 |
private bool
|
|
|
1085 |
same_type1_subrs(const gs_font_type1 *cfont, const gs_font_type1 *ofont,
|
|
|
1086 |
bool global)
|
|
|
1087 |
{
|
|
|
1088 |
gs_glyph_data_t gdata0, gdata1;
|
|
|
1089 |
int i, code = 0;
|
|
|
1090 |
bool exit = false;
|
|
|
1091 |
|
|
|
1092 |
gdata0.memory = cfont->memory;
|
|
|
1093 |
gdata1.memory = ofont->memory;
|
|
|
1094 |
/* Scan the font to determine the size of the subrs. */
|
|
|
1095 |
for (i = 0; !exit; i++) {
|
|
|
1096 |
int code0 = cfont->data.procs.subr_data((gs_font_type1 *)cfont,
|
|
|
1097 |
i, global, &gdata0);
|
|
|
1098 |
int code1 = ofont->data.procs.subr_data((gs_font_type1 *)ofont,
|
|
|
1099 |
i, global, &gdata1);
|
|
|
1100 |
bool missing0, missing1;
|
|
|
1101 |
|
|
|
1102 |
if (code0 == gs_error_rangecheck && code1 == gs_error_rangecheck)
|
|
|
1103 |
return 1; /* Both arrays exceeded. */
|
|
|
1104 |
/* Some fonts use null for skiping elements in subrs array.
|
|
|
1105 |
This gives typecheck.
|
|
|
1106 |
*/
|
|
|
1107 |
missing0 = (code0 == gs_error_rangecheck || code0 == gs_error_typecheck);
|
|
|
1108 |
missing1 = (code1 == gs_error_rangecheck || code1 == gs_error_typecheck);
|
|
|
1109 |
if (missing0 && missing1)
|
|
|
1110 |
continue;
|
|
|
1111 |
if (missing0 && !missing1)
|
|
|
1112 |
return 0; /* The copy has insufficient subrs. */
|
|
|
1113 |
if (missing1)
|
|
|
1114 |
continue;
|
|
|
1115 |
if (code0 < 0)
|
|
|
1116 |
code = code0, exit = true;
|
|
|
1117 |
else if (code1 < 0)
|
|
|
1118 |
code = code1, exit = true;
|
|
|
1119 |
else if (gdata0.bits.size != gdata1.bits.size)
|
|
|
1120 |
exit = true;
|
|
|
1121 |
else if (memcmp(gdata0.bits.data, gdata1.bits.data, gdata0.bits.size))
|
|
|
1122 |
exit = true;
|
|
|
1123 |
if (code0 > 0)
|
|
|
1124 |
gs_glyph_data_free(&gdata0, "same_type1_subrs");
|
|
|
1125 |
if (code1 > 0)
|
|
|
1126 |
gs_glyph_data_free(&gdata1, "same_type1_subrs");
|
|
|
1127 |
}
|
|
|
1128 |
return code;
|
|
|
1129 |
}
|
|
|
1130 |
|
|
|
1131 |
private bool
|
|
|
1132 |
same_type1_hinting(const gs_font_type1 *cfont, const gs_font_type1 *ofont)
|
|
|
1133 |
{
|
|
|
1134 |
const gs_type1_data *d0 = &cfont->data, *d1 = &ofont->data;
|
|
|
1135 |
|
|
|
1136 |
if (d0->lenIV != d1->lenIV)
|
|
|
1137 |
return false;
|
|
|
1138 |
/*
|
|
|
1139 |
if (d0->defaultWidthX != d1->defaultWidthX)
|
|
|
1140 |
return false;
|
|
|
1141 |
if (d0->nominalWidthX != d1->nominalWidthX)
|
|
|
1142 |
return false;
|
|
|
1143 |
*/
|
|
|
1144 |
if (d0->BlueFuzz != d1->BlueFuzz)
|
|
|
1145 |
return false;
|
|
|
1146 |
if (d0->BlueScale != d1->BlueScale)
|
|
|
1147 |
return false;
|
|
|
1148 |
if (d0->BlueShift != d1->BlueShift)
|
|
|
1149 |
return false;
|
|
|
1150 |
if (d0->ExpansionFactor != d1->ExpansionFactor)
|
|
|
1151 |
return false;
|
|
|
1152 |
if (d0->ForceBold != d1->ForceBold)
|
|
|
1153 |
return false;
|
|
|
1154 |
if (!compare_tables(d0->FamilyBlues, d1->FamilyBlues))
|
|
|
1155 |
return false;
|
|
|
1156 |
if (!compare_tables(d0->FamilyOtherBlues, d1->FamilyOtherBlues))
|
|
|
1157 |
return false;
|
|
|
1158 |
if (d0->LanguageGroup != d1->LanguageGroup)
|
|
|
1159 |
return false;
|
|
|
1160 |
if (!compare_tables(d0->OtherBlues, d1->OtherBlues))
|
|
|
1161 |
return false;
|
|
|
1162 |
if (d0->RndStemUp != d1->RndStemUp)
|
|
|
1163 |
return false;
|
|
|
1164 |
if (!compare_tables(d0->StdHW, d1->StdHW))
|
|
|
1165 |
return false;
|
|
|
1166 |
if (!compare_tables(d0->StemSnapH, d1->StemSnapH))
|
|
|
1167 |
return false;
|
|
|
1168 |
if (!compare_tables(d0->StemSnapV, d1->StemSnapV))
|
|
|
1169 |
return false;
|
|
|
1170 |
if (!compare_tables(d0->WeightVector, d1->WeightVector))
|
|
|
1171 |
return false;
|
|
|
1172 |
if (!same_type1_subrs(cfont, ofont, false))
|
|
|
1173 |
return false;
|
|
|
1174 |
if (!same_type1_subrs(cfont, ofont, true))
|
|
|
1175 |
return false;
|
|
|
1176 |
/*
|
|
|
1177 |
* We ignore differences in OtherSubrs because pdfwrite
|
|
|
1178 |
* must build without PS interpreter and therefore copied font
|
|
|
1179 |
* have no storage for them.
|
|
|
1180 |
*/
|
|
|
1181 |
return true;
|
|
|
1182 |
}
|
|
|
1183 |
|
|
|
1184 |
/* ------ Type 42 ------ */
|
|
|
1185 |
|
|
|
1186 |
private int
|
|
|
1187 |
copied_type42_string_proc(gs_font_type42 *font, ulong offset, uint len,
|
|
|
1188 |
const byte **pstr)
|
|
|
1189 |
{
|
|
|
1190 |
gs_copied_font_data_t *const cfdata = font->data.proc_data;
|
|
|
1191 |
|
|
|
1192 |
if (offset + len > cfdata->data_size)
|
|
|
1193 |
return_error(gs_error_rangecheck);
|
|
|
1194 |
*pstr = cfdata->data + offset;
|
|
|
1195 |
return 0;
|
|
|
1196 |
}
|
|
|
1197 |
|
|
|
1198 |
private int
|
|
|
1199 |
copied_type42_get_outline(gs_font_type42 *font, uint glyph_index,
|
|
|
1200 |
gs_glyph_data_t *pgd)
|
|
|
1201 |
{
|
|
|
1202 |
gs_copied_font_data_t *const cfdata = font->data.proc_data;
|
|
|
1203 |
gs_copied_glyph_t *pcg;
|
|
|
1204 |
|
|
|
1205 |
if (glyph_index >= cfdata->glyphs_size)
|
|
|
1206 |
return_error(gs_error_rangecheck);
|
|
|
1207 |
pcg = &cfdata->glyphs[glyph_index];
|
|
|
1208 |
if (!pcg->used)
|
|
|
1209 |
gs_glyph_data_from_null(pgd);
|
|
|
1210 |
else
|
|
|
1211 |
gs_glyph_data_from_string(pgd, pcg->gdata.data, pcg->gdata.size, NULL);
|
|
|
1212 |
return 0;
|
|
|
1213 |
}
|
|
|
1214 |
|
|
|
1215 |
private int
|
|
|
1216 |
copied_type42_get_metrics(gs_font_type42 * pfont, uint glyph_index,
|
|
|
1217 |
int wmode, float sbw[4])
|
|
|
1218 |
{
|
|
|
1219 |
/* Check whether we have metrics for this (glyph,wmode) pair. */
|
|
|
1220 |
gs_copied_font_data_t *const cfdata = pfont->data.proc_data;
|
|
|
1221 |
gs_copied_glyph_t *pcg;
|
|
|
1222 |
|
|
|
1223 |
if (glyph_index >= cfdata->glyphs_size)
|
|
|
1224 |
return_error(gs_error_rangecheck);
|
|
|
1225 |
pcg = &cfdata->glyphs[glyph_index];
|
|
|
1226 |
if (!(pcg->used & (HAS_SBW0 << wmode)))
|
|
|
1227 |
return_error(gs_error_undefined);
|
|
|
1228 |
return gs_type42_default_get_metrics(pfont, glyph_index, wmode, sbw);
|
|
|
1229 |
}
|
|
|
1230 |
|
|
|
1231 |
private uint
|
|
|
1232 |
copied_type42_get_glyph_index(gs_font_type42 *font, gs_glyph glyph)
|
|
|
1233 |
{
|
|
|
1234 |
gs_copied_font_data_t *const cfdata = cf_data((gs_font *)font);
|
|
|
1235 |
gs_copied_glyph_t *pcg;
|
|
|
1236 |
int code = copied_glyph_slot(cfdata, glyph, &pcg);
|
|
|
1237 |
|
|
|
1238 |
if (code < 0)
|
|
|
1239 |
return GS_NO_GLYPH;
|
|
|
1240 |
return pcg - cfdata->glyphs;
|
|
|
1241 |
}
|
|
|
1242 |
|
|
|
1243 |
private int
|
|
|
1244 |
copy_font_type42(gs_font *font, gs_font *copied)
|
|
|
1245 |
{
|
|
|
1246 |
gs_font_type42 *const font42 = (gs_font_type42 *)font;
|
|
|
1247 |
gs_font_type42 *const copied42 = (gs_font_type42 *)copied;
|
|
|
1248 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
1249 |
/*
|
|
|
1250 |
* We "write" the font, aside from the glyphs, into an in-memory
|
|
|
1251 |
* structure, and access it from there.
|
|
|
1252 |
* We allocate room at the end of the copied data for fake hmtx/vmtx.
|
|
|
1253 |
*/
|
|
|
1254 |
uint extra = font42->data.trueNumGlyphs * 8;
|
|
|
1255 |
stream fs;
|
|
|
1256 |
int code;
|
|
|
1257 |
|
|
|
1258 |
cfdata->notdef = find_notdef((gs_font_base *)font);
|
|
|
1259 |
code = copied_Encoding_alloc(copied);
|
|
|
1260 |
if (code < 0)
|
|
|
1261 |
return code;
|
|
|
1262 |
s_init(&fs, font->memory);
|
|
|
1263 |
swrite_position_only(&fs);
|
|
|
1264 |
code = (font->FontType == ft_TrueType ? psf_write_truetype_stripped(&fs, font42)
|
|
|
1265 |
: psf_write_cid2_stripped(&fs, (gs_font_cid2 *)font42));
|
|
|
1266 |
code = copied_data_alloc(copied, &fs, extra, code);
|
|
|
1267 |
if (code < 0)
|
|
|
1268 |
goto fail;
|
|
|
1269 |
if (font->FontType == ft_TrueType)
|
|
|
1270 |
psf_write_truetype_stripped(&fs, font42);
|
|
|
1271 |
else
|
|
|
1272 |
psf_write_cid2_stripped(&fs, (gs_font_cid2 *)font42);
|
|
|
1273 |
copied42->data.string_proc = copied_type42_string_proc;
|
|
|
1274 |
copied42->data.proc_data = cfdata;
|
|
|
1275 |
code = gs_type42_font_init(copied42);
|
|
|
1276 |
if (code < 0)
|
|
|
1277 |
goto fail2;
|
|
|
1278 |
/* gs_type42_font_init overwrites enumerate_glyph. */
|
|
|
1279 |
copied42->procs.enumerate_glyph = copied_enumerate_glyph;
|
|
|
1280 |
copied42->data.get_glyph_index = copied_type42_get_glyph_index;
|
|
|
1281 |
copied42->data.get_outline = copied_type42_get_outline;
|
|
|
1282 |
copied42->data.get_metrics = copied_type42_get_metrics;
|
|
|
1283 |
copied42->data.metrics[0].numMetrics =
|
|
|
1284 |
copied42->data.metrics[1].numMetrics =
|
|
|
1285 |
extra / 8;
|
|
|
1286 |
copied42->data.metrics[0].offset = cfdata->data_size - extra;
|
|
|
1287 |
copied42->data.metrics[1].offset = cfdata->data_size - extra / 2;
|
|
|
1288 |
copied42->data.metrics[0].length =
|
|
|
1289 |
copied42->data.metrics[1].length =
|
|
|
1290 |
extra / 2;
|
|
|
1291 |
memset(cfdata->data + cfdata->data_size - extra, 0, extra);
|
|
|
1292 |
copied42->data.numGlyphs = font42->data.numGlyphs;
|
|
|
1293 |
copied42->data.trueNumGlyphs = font42->data.trueNumGlyphs;
|
|
|
1294 |
return 0;
|
|
|
1295 |
fail2:
|
|
|
1296 |
gs_free_object(copied->memory, cfdata->data,
|
|
|
1297 |
"copy_font_type42(data)");
|
|
|
1298 |
fail:
|
|
|
1299 |
gs_free_object(copied->memory, cfdata->Encoding,
|
|
|
1300 |
"copy_font_type42(Encoding)");
|
|
|
1301 |
return code;
|
|
|
1302 |
}
|
|
|
1303 |
|
|
|
1304 |
private int
|
|
|
1305 |
copy_glyph_type42(gs_font *font, gs_glyph glyph, gs_font *copied, int options)
|
|
|
1306 |
{
|
|
|
1307 |
gs_glyph_data_t gdata;
|
|
|
1308 |
gs_font_type42 *font42 = (gs_font_type42 *)font;
|
|
|
1309 |
gs_font_cid2 *fontCID2 = (gs_font_cid2 *)font;
|
|
|
1310 |
gs_font_type42 *const copied42 = (gs_font_type42 *)copied;
|
|
|
1311 |
uint gid = (options & COPY_GLYPH_BY_INDEX ? glyph - GS_MIN_GLYPH_INDEX :
|
|
|
1312 |
font->FontType == ft_CID_TrueType
|
|
|
1313 |
? fontCID2->cidata.CIDMap_proc(fontCID2, glyph)
|
|
|
1314 |
: font42->data.get_glyph_index(font42, glyph));
|
|
|
1315 |
int code;
|
|
|
1316 |
int rcode;
|
|
|
1317 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
1318 |
gs_copied_glyph_t *pcg;
|
|
|
1319 |
float sbw[4];
|
|
|
1320 |
double factor = font42->data.unitsPerEm;
|
|
|
1321 |
int i;
|
|
|
1322 |
|
|
|
1323 |
gdata.memory = font42->memory;
|
|
|
1324 |
code = font42->data.get_outline(font42, gid, &gdata);
|
|
|
1325 |
if (code < 0)
|
|
|
1326 |
return code;
|
|
|
1327 |
code = copy_glyph_data(font, gid + GS_MIN_GLYPH_INDEX, copied, options,
|
|
|
1328 |
&gdata, NULL, 0);
|
|
|
1329 |
if (code < 0)
|
|
|
1330 |
return code;
|
|
|
1331 |
rcode = code;
|
|
|
1332 |
if (glyph < GS_MIN_CID_GLYPH)
|
|
|
1333 |
code = copy_glyph_name(font, glyph, copied,
|
|
|
1334 |
gid + GS_MIN_GLYPH_INDEX);
|
|
|
1335 |
DISCARD(copied_glyph_slot(cfdata, gid + GS_MIN_GLYPH_INDEX, &pcg)); /* can't fail */
|
|
|
1336 |
for (i = 0; i < 2; ++i) {
|
|
|
1337 |
if (font42->data.get_metrics(font42, gid, i, sbw) >= 0) {
|
|
|
1338 |
int sb = (int)(sbw[i] * factor + 0.5);
|
|
|
1339 |
uint width = (uint)(sbw[2 + i] * factor + 0.5);
|
|
|
1340 |
byte *pmetrics =
|
|
|
1341 |
cfdata->data + copied42->data.metrics[i].offset + gid * 4;
|
|
|
1342 |
|
|
|
1343 |
pmetrics[0] = (byte)(width >> 8);
|
|
|
1344 |
pmetrics[1] = (byte)width;
|
|
|
1345 |
pmetrics[2] = (byte)(sb >> 8);
|
|
|
1346 |
pmetrics[3] = (byte)sb;
|
|
|
1347 |
pcg->used |= HAS_SBW0 << i;
|
|
|
1348 |
}
|
|
|
1349 |
factor = -factor; /* values are negated for WMode = 1 */
|
|
|
1350 |
}
|
|
|
1351 |
return (code < 0 ? code : rcode);
|
|
|
1352 |
}
|
|
|
1353 |
|
|
|
1354 |
private gs_glyph
|
|
|
1355 |
copied_type42_encode_char(gs_font *copied, gs_char chr,
|
|
|
1356 |
gs_glyph_space_t glyph_space)
|
|
|
1357 |
{
|
|
|
1358 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
1359 |
const gs_glyph *Encoding = cfdata->Encoding;
|
|
|
1360 |
gs_glyph glyph;
|
|
|
1361 |
|
|
|
1362 |
if (chr >= 256 || Encoding == 0)
|
|
|
1363 |
return GS_NO_GLYPH;
|
|
|
1364 |
glyph = Encoding[chr];
|
|
|
1365 |
if (glyph_space == GLYPH_SPACE_INDEX) {
|
|
|
1366 |
/* Search linearly for the glyph by name. */
|
|
|
1367 |
gs_copied_glyph_t *pcg;
|
|
|
1368 |
int code = named_glyph_slot_linear(cfdata, glyph, &pcg);
|
|
|
1369 |
|
|
|
1370 |
if (code < 0 || !pcg->used)
|
|
|
1371 |
return GS_NO_GLYPH;
|
|
|
1372 |
return GS_MIN_GLYPH_INDEX + (pcg - cfdata->glyphs);
|
|
|
1373 |
}
|
|
|
1374 |
return glyph;
|
|
|
1375 |
}
|
|
|
1376 |
|
|
|
1377 |
|
|
|
1378 |
private const gs_copied_font_procs_t copied_procs_type42 = {
|
|
|
1379 |
copy_font_type42, copy_glyph_type42, copied_char_add_encoding,
|
|
|
1380 |
named_glyph_slot_linear,
|
|
|
1381 |
copied_type42_encode_char, gs_type42_glyph_info, gs_type42_glyph_outline
|
|
|
1382 |
};
|
|
|
1383 |
|
|
|
1384 |
private inline int
|
|
|
1385 |
access_type42_data(gs_font_type42 *pfont, ulong base, ulong length,
|
|
|
1386 |
const byte **vptr)
|
|
|
1387 |
{
|
|
|
1388 |
/* See ACCESS macro in gstype42.c */
|
|
|
1389 |
return pfont->data.string_proc(pfont, base, length, vptr);
|
|
|
1390 |
}
|
|
|
1391 |
|
|
|
1392 |
private inline uint
|
|
|
1393 |
U16(const byte *p)
|
|
|
1394 |
{
|
|
|
1395 |
return ((uint)p[0] << 8) + p[1];
|
|
|
1396 |
}
|
|
|
1397 |
|
|
|
1398 |
private int
|
|
|
1399 |
same_type42_hinting(gs_font_type42 *font0, gs_font_type42 *font1)
|
|
|
1400 |
{
|
|
|
1401 |
gs_type42_data *d0 = &font0->data, *d1 = &font1->data;
|
|
|
1402 |
gs_font_type42 *font[2];
|
|
|
1403 |
uint pos[2][3];
|
|
|
1404 |
uint len[2][3] = {{0,0,0}, {0,0,0}};
|
|
|
1405 |
int i, j, code;
|
|
|
1406 |
|
|
|
1407 |
if (d0->unitsPerEm != d1->unitsPerEm)
|
|
|
1408 |
return 0;
|
|
|
1409 |
font[0] = font0;
|
|
|
1410 |
font[1] = font1;
|
|
|
1411 |
memset(pos, 0, sizeof(pos));
|
|
|
1412 |
for (j = 0; j < 2; j++) {
|
|
|
1413 |
const byte *OffsetTable;
|
|
|
1414 |
uint numTables;
|
|
|
1415 |
|
|
|
1416 |
code = access_type42_data(font[j], 0, 12, &OffsetTable);
|
|
|
1417 |
if (code < 0)
|
|
|
1418 |
return code;
|
|
|
1419 |
numTables = U16(OffsetTable + 4);
|
|
|
1420 |
for (i = 0; i < numTables; ++i) {
|
|
|
1421 |
const byte *tab;
|
|
|
1422 |
ulong start;
|
|
|
1423 |
uint length;
|
|
|
1424 |
|
|
|
1425 |
code = access_type42_data(font[j], 12 + i * 16, 16, &tab);
|
|
|
1426 |
if (code < 0)
|
|
|
1427 |
return code;
|
|
|
1428 |
start = get_u32_msb(tab + 8);
|
|
|
1429 |
length = get_u32_msb(tab + 12);
|
|
|
1430 |
if (!memcmp("prep", tab, 4))
|
|
|
1431 |
pos[j][0] = start, len[j][0] = length;
|
|
|
1432 |
else if (!memcmp("cvt ", tab, 4))
|
|
|
1433 |
pos[j][1] = start, len[j][1] = length;
|
|
|
1434 |
else if (!memcmp("fpgm", tab, 4))
|
|
|
1435 |
pos[j][2] = start, len[j][2] = length;
|
|
|
1436 |
}
|
|
|
1437 |
}
|
|
|
1438 |
for (i = 0; i < 3; i++) {
|
|
|
1439 |
if (len[0][i] != len[1][i])
|
|
|
1440 |
return 0;
|
|
|
1441 |
}
|
|
|
1442 |
for (i = 0; i < 3; i++) {
|
|
|
1443 |
if (len[0][i] != 0) {
|
|
|
1444 |
const byte *data0, *data1;
|
|
|
1445 |
|
|
|
1446 |
code = access_type42_data(font0, pos[0][i], len[0][i], &data0);
|
|
|
1447 |
if (code < 0)
|
|
|
1448 |
return code;
|
|
|
1449 |
code = access_type42_data(font1, pos[1][i], len[1][i], &data1);
|
|
|
1450 |
if (code < 0)
|
|
|
1451 |
return code;
|
|
|
1452 |
if (memcmp(data0, data1, len[1][i]))
|
|
|
1453 |
return 0;
|
|
|
1454 |
}
|
|
|
1455 |
}
|
|
|
1456 |
return 1;
|
|
|
1457 |
}
|
|
|
1458 |
|
|
|
1459 |
#undef ACCESS
|
|
|
1460 |
|
|
|
1461 |
/* ------ CIDFont shared ------ */
|
|
|
1462 |
|
|
|
1463 |
private int
|
|
|
1464 |
copy_font_cid_common(gs_font *font, gs_font *copied, gs_font_cid_data *pcdata)
|
|
|
1465 |
{
|
|
|
1466 |
return (copy_string(copied->memory, &pcdata->CIDSystemInfo.Registry,
|
|
|
1467 |
"Registry") |
|
|
|
1468 |
copy_string(copied->memory, &pcdata->CIDSystemInfo.Ordering,
|
|
|
1469 |
"Ordering"));
|
|
|
1470 |
}
|
|
|
1471 |
|
|
|
1472 |
/* ------ CIDFontType 0 ------ */
|
|
|
1473 |
|
|
|
1474 |
private int
|
|
|
1475 |
copied_cid0_glyph_data(gs_font_base *font, gs_glyph glyph,
|
|
|
1476 |
gs_glyph_data_t *pgd, int *pfidx)
|
|
|
1477 |
{
|
|
|
1478 |
gs_font_cid0 *fcid0 = (gs_font_cid0 *)font;
|
|
|
1479 |
gs_copied_font_data_t *const cfdata = cf_data((gs_font *)font);
|
|
|
1480 |
gs_copied_glyph_t *pcg;
|
|
|
1481 |
int code = copied_glyph_slot(cfdata, glyph, &pcg);
|
|
|
1482 |
int fdbytes = fcid0->cidata.FDBytes;
|
|
|
1483 |
int i;
|
|
|
1484 |
|
|
|
1485 |
if (pfidx)
|
|
|
1486 |
*pfidx = 0;
|
|
|
1487 |
if (code < 0) {
|
|
|
1488 |
if (pgd)
|
|
|
1489 |
gs_glyph_data_from_null(pgd);
|
|
|
1490 |
return_error(gs_error_undefined);
|
|
|
1491 |
}
|
|
|
1492 |
if (pfidx)
|
|
|
1493 |
for (i = 0; i < fdbytes; ++i)
|
|
|
1494 |
*pfidx = (*pfidx << 8) + pcg->gdata.data[i];
|
|
|
1495 |
if (pgd)
|
|
|
1496 |
gs_glyph_data_from_string(pgd, pcg->gdata.data + fdbytes,
|
|
|
1497 |
pcg->gdata.size - fdbytes, NULL);
|
|
|
1498 |
return 0;
|
|
|
1499 |
}
|
|
|
1500 |
private int
|
|
|
1501 |
copied_sub_type1_glyph_data(gs_font_type1 * pfont, gs_glyph glyph,
|
|
|
1502 |
gs_glyph_data_t *pgd)
|
|
|
1503 |
{
|
|
|
1504 |
return
|
|
|
1505 |
copied_cid0_glyph_data((gs_font_base *)cf_data((gs_font *)pfont)->parent,
|
|
|
1506 |
glyph, pgd, NULL);
|
|
|
1507 |
}
|
|
|
1508 |
|
|
|
1509 |
private int
|
|
|
1510 |
cid0_subfont(gs_font *copied, gs_glyph glyph, gs_font_type1 **pfont1)
|
|
|
1511 |
{
|
|
|
1512 |
int fidx;
|
|
|
1513 |
int code = copied_cid0_glyph_data((gs_font_base *)copied, glyph, NULL,
|
|
|
1514 |
&fidx);
|
|
|
1515 |
|
|
|
1516 |
if (code >= 0) {
|
|
|
1517 |
gs_font_cid0 *font0 = (gs_font_cid0 *)copied;
|
|
|
1518 |
|
|
|
1519 |
if (fidx >= font0->cidata.FDArray_size)
|
|
|
1520 |
return_error(gs_error_unregistered); /* Must not happen. */
|
|
|
1521 |
*pfont1 = font0->cidata.FDArray[fidx];
|
|
|
1522 |
}
|
|
|
1523 |
return code;
|
|
|
1524 |
}
|
|
|
1525 |
|
|
|
1526 |
private int
|
|
|
1527 |
copied_cid0_glyph_info(gs_font *font, gs_glyph glyph, const gs_matrix *pmat,
|
|
|
1528 |
int members, gs_glyph_info_t *info)
|
|
|
1529 |
{
|
|
|
1530 |
gs_font_type1 *subfont1;
|
|
|
1531 |
int code = cid0_subfont(font, glyph, &subfont1);
|
|
|
1532 |
|
|
|
1533 |
if (code < 0)
|
|
|
1534 |
return code;
|
|
|
1535 |
if (members & GLYPH_INFO_WIDTH1) {
|
|
|
1536 |
/* Hack : There is no way to pass WMode from font to glyph_info,
|
|
|
1537 |
* and usually CID font has no metrics for WMode 1.
|
|
|
1538 |
* Therefore we use FontBBox as default size.
|
|
|
1539 |
* Warning : this incompletely implements the request :
|
|
|
1540 |
* other requested members are not retrieved.
|
|
|
1541 |
*/
|
|
|
1542 |
gs_font_info_t finfo;
|
|
|
1543 |
int code = subfont1->procs.font_info(font, NULL, FONT_INFO_BBOX, &finfo);
|
|
|
1544 |
|
|
|
1545 |
if (code < 0)
|
|
|
1546 |
return code;
|
|
|
1547 |
info->width[1].x = 0;
|
|
|
1548 |
info->width[1].y = -finfo.BBox.q.x; /* Sic! */
|
|
|
1549 |
info->v.x = finfo.BBox.q.x / 2;
|
|
|
1550 |
info->v.y = finfo.BBox.q.y;
|
|
|
1551 |
info->members = GLYPH_INFO_WIDTH1;
|
|
|
1552 |
return 0;
|
|
|
1553 |
}
|
|
|
1554 |
return subfont1->procs.glyph_info((gs_font *)subfont1, glyph, pmat,
|
|
|
1555 |
members, info);
|
|
|
1556 |
}
|
|
|
1557 |
|
|
|
1558 |
private int
|
|
|
1559 |
copied_cid0_glyph_outline(gs_font *font, int WMode, gs_glyph glyph,
|
|
|
1560 |
const gs_matrix *pmat, gx_path *ppath, double sbw[4])
|
|
|
1561 |
{
|
|
|
1562 |
gs_font_type1 *subfont1;
|
|
|
1563 |
int code = cid0_subfont(font, glyph, &subfont1);
|
|
|
1564 |
|
|
|
1565 |
if (code < 0)
|
|
|
1566 |
return code;
|
|
|
1567 |
return subfont1->procs.glyph_outline((gs_font *)subfont1, WMode, glyph, pmat,
|
|
|
1568 |
ppath, sbw);
|
|
|
1569 |
}
|
|
|
1570 |
|
|
|
1571 |
private int
|
|
|
1572 |
copy_font_cid0(gs_font *font, gs_font *copied)
|
|
|
1573 |
{
|
|
|
1574 |
gs_font_cid0 *copied0 = (gs_font_cid0 *)copied;
|
|
|
1575 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
1576 |
gs_font_type1 **FDArray =
|
|
|
1577 |
gs_alloc_struct_array(copied->memory, copied0->cidata.FDArray_size,
|
|
|
1578 |
gs_font_type1 *,
|
|
|
1579 |
&st_gs_font_type1_ptr_element, "FDArray");
|
|
|
1580 |
int i = 0, code;
|
|
|
1581 |
|
|
|
1582 |
if (FDArray == 0)
|
|
|
1583 |
return_error(gs_error_VMerror);
|
|
|
1584 |
code = copy_font_cid_common(font, copied, &copied0->cidata.common);
|
|
|
1585 |
if (code < 0)
|
|
|
1586 |
goto fail;
|
|
|
1587 |
for (; i < copied0->cidata.FDArray_size; ++i) {
|
|
|
1588 |
gs_font *subfont = (gs_font *)copied0->cidata.FDArray[i];
|
|
|
1589 |
gs_font_type1 *subfont1 = (gs_font_type1 *)subfont;
|
|
|
1590 |
gs_font *subcopy;
|
|
|
1591 |
gs_font_type1 *subcopy1;
|
|
|
1592 |
gs_copied_font_data_t *subdata;
|
|
|
1593 |
|
|
|
1594 |
if (i == 0) {
|
|
|
1595 |
/* copy_subrs requires a Type 1 font, even for GSubrs. */
|
|
|
1596 |
code = copy_subrs(subfont1, true, &cfdata->global_subrs,
|
|
|
1597 |
copied->memory);
|
|
|
1598 |
if (code < 0)
|
|
|
1599 |
goto fail;
|
|
|
1600 |
}
|
|
|
1601 |
code = gs_copy_font(subfont, &subfont->FontMatrix, copied->memory, &subcopy);
|
|
|
1602 |
if (code < 0)
|
|
|
1603 |
goto fail;
|
|
|
1604 |
subcopy1 = (gs_font_type1 *)subcopy;
|
|
|
1605 |
subcopy1->data.parent = NULL;
|
|
|
1606 |
subdata = cf_data(subcopy);
|
|
|
1607 |
subdata->parent = copied0;
|
|
|
1608 |
gs_free_object(copied->memory, subdata->Encoding,
|
|
|
1609 |
"copy_font_cid0(Encoding)");
|
|
|
1610 |
subdata->Encoding = 0;
|
|
|
1611 |
/*
|
|
|
1612 |
* Share the glyph data and global_subrs with the parent. This
|
|
|
1613 |
* allows copied_type1_glyph_data in the subfont to do the right
|
|
|
1614 |
* thing.
|
|
|
1615 |
*/
|
|
|
1616 |
gs_free_object(copied->memory, subdata->names,
|
|
|
1617 |
"copy_font_cid0(subfont names)");
|
|
|
1618 |
gs_free_object(copied->memory, subdata->glyphs,
|
|
|
1619 |
"copy_font_cid0(subfont glyphs)");
|
|
|
1620 |
subcopy1->data.procs.glyph_data = copied_sub_type1_glyph_data;
|
|
|
1621 |
subdata->glyphs = cfdata->glyphs;
|
|
|
1622 |
subdata->glyphs_size = cfdata->glyphs_size;
|
|
|
1623 |
subdata->names = 0;
|
|
|
1624 |
subdata->global_subrs = cfdata->global_subrs;
|
|
|
1625 |
FDArray[i] = subcopy1;
|
|
|
1626 |
}
|
|
|
1627 |
cfdata->notdef = GS_MIN_CID_GLYPH;
|
|
|
1628 |
copied0->cidata.FDArray = FDArray;
|
|
|
1629 |
copied0->cidata.FDBytes =
|
|
|
1630 |
(copied0->cidata.FDArray_size <= 1 ? 0 :
|
|
|
1631 |
copied0->cidata.FDArray_size <= 256 ? 1 : 2);
|
|
|
1632 |
copied0->cidata.glyph_data = copied_cid0_glyph_data;
|
|
|
1633 |
return 0;
|
|
|
1634 |
fail:
|
|
|
1635 |
while (--i >= 0)
|
|
|
1636 |
gs_free_object(copied->memory, FDArray[i], "copy_font_cid0(subfont)");
|
|
|
1637 |
gs_free_object(copied->memory, FDArray, "FDArray");
|
|
|
1638 |
return code;
|
|
|
1639 |
}
|
|
|
1640 |
|
|
|
1641 |
private int
|
|
|
1642 |
copy_glyph_cid0(gs_font *font, gs_glyph glyph, gs_font *copied, int options)
|
|
|
1643 |
{
|
|
|
1644 |
gs_glyph_data_t gdata;
|
|
|
1645 |
gs_font_cid0 *fcid0 = (gs_font_cid0 *)font;
|
|
|
1646 |
gs_font_cid0 *copied0 = (gs_font_cid0 *)copied;
|
|
|
1647 |
int fdbytes = copied0->cidata.FDBytes;
|
|
|
1648 |
int fidx;
|
|
|
1649 |
int code;
|
|
|
1650 |
byte prefix[MAX_FDBytes];
|
|
|
1651 |
int i;
|
|
|
1652 |
|
|
|
1653 |
gdata.memory = font->memory;
|
|
|
1654 |
code = fcid0->cidata.glyph_data((gs_font_base *)font, glyph,
|
|
|
1655 |
&gdata, &fidx);
|
|
|
1656 |
if (code < 0)
|
|
|
1657 |
return code;
|
|
|
1658 |
for (i = fdbytes - 1; i >= 0; --i, fidx >>= 8)
|
|
|
1659 |
prefix[i] = (byte)fidx;
|
|
|
1660 |
if (fidx != 0)
|
|
|
1661 |
return_error(gs_error_rangecheck);
|
|
|
1662 |
return copy_glyph_data(font, glyph, copied, options, &gdata, prefix, fdbytes);
|
|
|
1663 |
}
|
|
|
1664 |
|
|
|
1665 |
private const gs_copied_font_procs_t copied_procs_cid0 = {
|
|
|
1666 |
copy_font_cid0, copy_glyph_cid0, copied_no_add_encoding,
|
|
|
1667 |
named_glyph_slot_none,
|
|
|
1668 |
gs_no_encode_char, copied_cid0_glyph_info, copied_cid0_glyph_outline
|
|
|
1669 |
};
|
|
|
1670 |
|
|
|
1671 |
private int
|
|
|
1672 |
same_cid0_hinting(const gs_font_cid0 *cfont, const gs_font_cid0 *ofont)
|
|
|
1673 |
{
|
|
|
1674 |
int i;
|
|
|
1675 |
|
|
|
1676 |
if (cfont->cidata.FDArray_size != ofont->cidata.FDArray_size)
|
|
|
1677 |
return 0;
|
|
|
1678 |
|
|
|
1679 |
for (i = 0; i < cfont->cidata.FDArray_size; i++) {
|
|
|
1680 |
gs_font_type1 *subfont0 = cfont->cidata.FDArray[i];
|
|
|
1681 |
gs_font_type1 *subfont1 = ofont->cidata.FDArray[i];
|
|
|
1682 |
if (!same_type1_hinting(subfont0, subfont1))
|
|
|
1683 |
return 0;
|
|
|
1684 |
}
|
|
|
1685 |
return 1;
|
|
|
1686 |
}
|
|
|
1687 |
|
|
|
1688 |
/* ------ CIDFontType 2 ------ */
|
|
|
1689 |
|
|
|
1690 |
private int
|
|
|
1691 |
copied_cid2_CIDMap_proc(gs_font_cid2 *fcid2, gs_glyph glyph)
|
|
|
1692 |
{
|
|
|
1693 |
uint cid = glyph - GS_MIN_CID_GLYPH;
|
|
|
1694 |
gs_copied_font_data_t *const cfdata = cf_data((gs_font *)fcid2);
|
|
|
1695 |
const ushort *CIDMap = cfdata->CIDMap;
|
|
|
1696 |
|
|
|
1697 |
if (glyph < GS_MIN_CID_GLYPH || cid >= fcid2->cidata.common.CIDCount)
|
|
|
1698 |
return_error(gs_error_rangecheck);
|
|
|
1699 |
if (CIDMap[cid] == 0xffff)
|
|
|
1700 |
return -1;
|
|
|
1701 |
return CIDMap[cid];
|
|
|
1702 |
}
|
|
|
1703 |
|
|
|
1704 |
private uint
|
|
|
1705 |
copied_cid2_get_glyph_index(gs_font_type42 *font, gs_glyph glyph)
|
|
|
1706 |
{
|
|
|
1707 |
int glyph_index = copied_cid2_CIDMap_proc((gs_font_cid2 *)font, glyph);
|
|
|
1708 |
|
|
|
1709 |
if (glyph_index < 0)
|
|
|
1710 |
return GS_NO_GLYPH;
|
|
|
1711 |
return glyph_index;
|
|
|
1712 |
}
|
|
|
1713 |
|
|
|
1714 |
private int
|
|
|
1715 |
copy_font_cid2(gs_font *font, gs_font *copied)
|
|
|
1716 |
{
|
|
|
1717 |
gs_font_cid2 *copied2 = (gs_font_cid2 *)copied;
|
|
|
1718 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
1719 |
int code;
|
|
|
1720 |
int CIDCount = copied2->cidata.common.CIDCount;
|
|
|
1721 |
ushort *CIDMap = (ushort *)
|
|
|
1722 |
gs_alloc_byte_array(copied->memory, CIDCount, sizeof(ushort),
|
|
|
1723 |
"copy_font_cid2(CIDMap");
|
|
|
1724 |
|
|
|
1725 |
if (CIDMap == 0)
|
|
|
1726 |
return_error(gs_error_VMerror);
|
|
|
1727 |
code = copy_font_cid_common(font, copied, &copied2->cidata.common);
|
|
|
1728 |
if (code < 0 ||
|
|
|
1729 |
(code = copy_font_type42(font, copied)) < 0
|
|
|
1730 |
) {
|
|
|
1731 |
gs_free_object(copied->memory, CIDMap, "copy_font_cid2(CIDMap");
|
|
|
1732 |
return code;
|
|
|
1733 |
}
|
|
|
1734 |
cfdata->notdef = GS_MIN_CID_GLYPH;
|
|
|
1735 |
memset(CIDMap, 0xff, CIDCount * sizeof(*CIDMap));
|
|
|
1736 |
cfdata->CIDMap = CIDMap;
|
|
|
1737 |
copied2->cidata.MetricsCount = 0;
|
|
|
1738 |
copied2->cidata.CIDMap_proc = copied_cid2_CIDMap_proc;
|
|
|
1739 |
{
|
|
|
1740 |
gs_font_type42 *const copied42 = (gs_font_type42 *)copied;
|
|
|
1741 |
|
|
|
1742 |
copied42->data.get_glyph_index = copied_cid2_get_glyph_index;
|
|
|
1743 |
}
|
|
|
1744 |
return 0;
|
|
|
1745 |
}
|
|
|
1746 |
|
|
|
1747 |
private int expand_CIDMap(gs_font_cid2 *copied2, uint CIDCount)
|
|
|
1748 |
{
|
|
|
1749 |
ushort *CIDMap;
|
|
|
1750 |
gs_copied_font_data_t *const cfdata = cf_data((gs_font *)copied2);
|
|
|
1751 |
|
|
|
1752 |
if (CIDCount <= copied2->cidata.common.CIDCount)
|
|
|
1753 |
return 0;
|
|
|
1754 |
CIDMap = (ushort *)
|
|
|
1755 |
gs_alloc_byte_array(copied2->memory, CIDCount, sizeof(ushort),
|
|
|
1756 |
"copy_font_cid2(CIDMap");
|
|
|
1757 |
if (CIDMap == 0)
|
|
|
1758 |
return_error(gs_error_VMerror);
|
|
|
1759 |
memcpy(CIDMap, cfdata->CIDMap, copied2->cidata.common.CIDCount * sizeof(*CIDMap));
|
|
|
1760 |
memset(CIDMap + copied2->cidata.common.CIDCount, 0xFF,
|
|
|
1761 |
(CIDCount - copied2->cidata.common.CIDCount) * sizeof(*CIDMap));
|
|
|
1762 |
cfdata->CIDMap = CIDMap;
|
|
|
1763 |
copied2->cidata.common.CIDCount = CIDCount;
|
|
|
1764 |
return 0;
|
|
|
1765 |
}
|
|
|
1766 |
|
|
|
1767 |
private int
|
|
|
1768 |
copy_glyph_cid2(gs_font *font, gs_glyph glyph, gs_font *copied, int options)
|
|
|
1769 |
{
|
|
|
1770 |
gs_font_cid2 *fcid2 = (gs_font_cid2 *)font;
|
|
|
1771 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
1772 |
gs_font_cid2 *copied2 = (gs_font_cid2 *)copied;
|
|
|
1773 |
int gid;
|
|
|
1774 |
int code;
|
|
|
1775 |
|
|
|
1776 |
if (!(options & COPY_GLYPH_BY_INDEX)) {
|
|
|
1777 |
uint cid = glyph - GS_MIN_CID_GLYPH;
|
|
|
1778 |
int CIDCount;
|
|
|
1779 |
|
|
|
1780 |
code = expand_CIDMap(copied2, cid + 1);
|
|
|
1781 |
if (code < 0)
|
|
|
1782 |
return code;
|
|
|
1783 |
CIDCount = copied2->cidata.common.CIDCount;
|
|
|
1784 |
gid = fcid2->cidata.CIDMap_proc(fcid2, glyph);
|
|
|
1785 |
if (gid < 0 || gid >= cfdata->glyphs_size)
|
|
|
1786 |
return_error(gs_error_rangecheck);
|
|
|
1787 |
if (cid > CIDCount)
|
|
|
1788 |
return_error(gs_error_invalidaccess);
|
|
|
1789 |
if (cfdata->CIDMap[cid] != 0xffff && cfdata->CIDMap[cid] != gid)
|
|
|
1790 |
return_error(gs_error_invalidaccess);
|
|
|
1791 |
code = copy_glyph_type42(font, glyph, copied, options);
|
|
|
1792 |
if (code < 0)
|
|
|
1793 |
return code;
|
|
|
1794 |
cfdata->CIDMap[cid] = gid;
|
|
|
1795 |
} else {
|
|
|
1796 |
gid = glyph - GS_MIN_GLYPH_INDEX;
|
|
|
1797 |
if (gid < 0 || gid >= cfdata->glyphs_size)
|
|
|
1798 |
return_error(gs_error_rangecheck);
|
|
|
1799 |
code = copy_glyph_type42(font, glyph, copied, options);
|
|
|
1800 |
if (code < 0)
|
|
|
1801 |
return code;
|
|
|
1802 |
}
|
|
|
1803 |
return code;
|
|
|
1804 |
}
|
|
|
1805 |
|
|
|
1806 |
private const gs_copied_font_procs_t copied_procs_cid2 = {
|
|
|
1807 |
copy_font_cid2, copy_glyph_cid2, copied_no_add_encoding,
|
|
|
1808 |
named_glyph_slot_none,
|
|
|
1809 |
gs_no_encode_char, gs_type42_glyph_info, gs_type42_glyph_outline
|
|
|
1810 |
};
|
|
|
1811 |
|
|
|
1812 |
private int
|
|
|
1813 |
same_cid2_hinting(const gs_font_cid2 *cfont, const gs_font_cid2 *ofont)
|
|
|
1814 |
{
|
|
|
1815 |
return same_type42_hinting((gs_font_type42 *)cfont, (gs_font_type42 *)ofont);
|
|
|
1816 |
}
|
|
|
1817 |
|
|
|
1818 |
/* ---------------- Public ---------------- */
|
|
|
1819 |
|
|
|
1820 |
/*
|
|
|
1821 |
* Procedure vector for copied fonts.
|
|
|
1822 |
*/
|
|
|
1823 |
private font_proc_font_info(copied_font_info);
|
|
|
1824 |
private font_proc_enumerate_glyph(copied_enumerate_glyph);
|
|
|
1825 |
private const gs_font_procs copied_font_procs = {
|
|
|
1826 |
0, /* define_font, not supported */
|
|
|
1827 |
0, /* make_font, not supported */
|
|
|
1828 |
copied_font_info,
|
|
|
1829 |
gs_default_same_font,
|
|
|
1830 |
0, /* encode_char, varies by FontType */
|
|
|
1831 |
0, /* decode_char, not supported */
|
|
|
1832 |
copied_enumerate_glyph,
|
|
|
1833 |
0, /* glyph_info, varies by FontType */
|
|
|
1834 |
0, /* glyph_outline, varies by FontType */
|
|
|
1835 |
copied_glyph_name,
|
|
|
1836 |
gs_default_init_fstack,
|
|
|
1837 |
gs_default_next_char_glyph,
|
|
|
1838 |
copied_build_char
|
|
|
1839 |
};
|
|
|
1840 |
|
|
|
1841 |
#if GLYPHS_SIZE_IS_PRIME
|
|
|
1842 |
private const int some_primes[] = {
|
|
|
1843 |
/* Arbitrary choosen prime numbers, being reasonable for a Type 1|2 font size.
|
|
|
1844 |
We start with 257 to fit 256 glyphs and .notdef .
|
|
|
1845 |
Smaller numbers aren't useful, because we don't know whether a font
|
|
|
1846 |
will add more glyphs incrementally when we allocate its stable copy.
|
|
|
1847 |
*/
|
|
|
1848 |
257, 359, 521, 769, 1031, 2053,
|
|
|
1849 |
3079, 4099, 5101, 6101, 7109, 8209, 10007, 12007, 14009,
|
|
|
1850 |
16411, 20107, 26501, 32771, 48857, 65537};
|
|
|
1851 |
#endif
|
|
|
1852 |
|
|
|
1853 |
/*
|
|
|
1854 |
* Copy a font, aside from its glyphs.
|
|
|
1855 |
*/
|
|
|
1856 |
int
|
|
|
1857 |
gs_copy_font(gs_font *font, const gs_matrix *orig_matrix, gs_memory_t *mem, gs_font **pfont_new)
|
|
|
1858 |
{
|
|
|
1859 |
gs_memory_type_ptr_t fstype = gs_object_type(font->memory, font);
|
|
|
1860 |
uint fssize = gs_struct_type_size(fstype);
|
|
|
1861 |
gs_font *copied = 0;
|
|
|
1862 |
gs_copied_font_data_t *cfdata = 0;
|
|
|
1863 |
gs_font_info_t info;
|
|
|
1864 |
gs_copied_glyph_t *glyphs = 0;
|
|
|
1865 |
uint glyphs_size;
|
|
|
1866 |
gs_copied_glyph_name_t *names = 0;
|
|
|
1867 |
bool have_names = false;
|
|
|
1868 |
const gs_copied_font_procs_t *procs;
|
|
|
1869 |
int code;
|
|
|
1870 |
|
|
|
1871 |
/*
|
|
|
1872 |
* Check for a supported FontType, and compute the size of its
|
|
|
1873 |
* copied glyph table.
|
|
|
1874 |
*/
|
|
|
1875 |
switch (font->FontType) {
|
|
|
1876 |
case ft_TrueType:
|
|
|
1877 |
procs = &copied_procs_type42;
|
|
|
1878 |
glyphs_size = ((gs_font_type42 *)font)->data.trueNumGlyphs;
|
|
|
1879 |
have_names = true;
|
|
|
1880 |
break;
|
|
|
1881 |
case ft_encrypted:
|
|
|
1882 |
case ft_encrypted2:
|
|
|
1883 |
procs = &copied_procs_type1;
|
|
|
1884 |
/* Count the glyphs. */
|
|
|
1885 |
glyphs_size = 0;
|
|
|
1886 |
{
|
|
|
1887 |
int index = 0;
|
|
|
1888 |
gs_glyph glyph;
|
|
|
1889 |
|
|
|
1890 |
while (font->procs.enumerate_glyph(font, &index, GLYPH_SPACE_NAME,
|
|
|
1891 |
&glyph), index != 0)
|
|
|
1892 |
++glyphs_size;
|
|
|
1893 |
}
|
|
|
1894 |
#if GLYPHS_SIZE_IS_PRIME
|
|
|
1895 |
/*
|
|
|
1896 |
* Make glyphs_size a prime number to ensure termination of the loop in
|
|
|
1897 |
* named_glyphs_slot_hashed, q.v.
|
|
|
1898 |
* Also reserve additional slots for the case of font merging and
|
|
|
1899 |
* for possible font increments.
|
|
|
1900 |
*/
|
|
|
1901 |
glyphs_size = glyphs_size * 3 / 2;
|
|
|
1902 |
if (glyphs_size < 257)
|
|
|
1903 |
glyphs_size = 257;
|
|
|
1904 |
{ int i;
|
|
|
1905 |
for (i = 0; i < count_of(some_primes); i++)
|
|
|
1906 |
if (glyphs_size <= some_primes[i])
|
|
|
1907 |
break;
|
|
|
1908 |
if (i >= count_of(some_primes))
|
|
|
1909 |
return_error(gs_error_rangecheck);
|
|
|
1910 |
glyphs_size = some_primes[i];
|
|
|
1911 |
}
|
|
|
1912 |
#else
|
|
|
1913 |
/*
|
|
|
1914 |
* Make names_size a power of 2 to ensure termination of the loop in
|
|
|
1915 |
* named_glyphs_slot_hashed, q.v.
|
|
|
1916 |
*/
|
|
|
1917 |
glyphs_size = glyphs_size * 3 / 2;
|
|
|
1918 |
while (glyphs_size & (glyphs_size - 1))
|
|
|
1919 |
glyphs_size = (glyphs_size | (glyphs_size - 1)) + 1;
|
|
|
1920 |
if (glyphs_size < 256) /* probably incremental font */
|
|
|
1921 |
glyphs_size = 256;
|
|
|
1922 |
#endif
|
|
|
1923 |
have_names = true;
|
|
|
1924 |
break;
|
|
|
1925 |
case ft_CID_encrypted:
|
|
|
1926 |
procs = &copied_procs_cid0;
|
|
|
1927 |
glyphs_size = ((gs_font_cid0 *)font)->cidata.common.CIDCount;
|
|
|
1928 |
break;
|
|
|
1929 |
case ft_CID_TrueType:
|
|
|
1930 |
procs = &copied_procs_cid2;
|
|
|
1931 |
/* Glyphs are indexed by GID, not by CID. */
|
|
|
1932 |
glyphs_size = ((gs_font_cid2 *)font)->data.trueNumGlyphs;
|
|
|
1933 |
break;
|
|
|
1934 |
default:
|
|
|
1935 |
return_error(gs_error_rangecheck);
|
|
|
1936 |
}
|
|
|
1937 |
|
|
|
1938 |
/* Get the font_info for copying. */
|
|
|
1939 |
|
|
|
1940 |
memset(&info, 0, sizeof(info));
|
|
|
1941 |
info.Flags_requested = ~0;
|
|
|
1942 |
code = font->procs.font_info(font, NULL, ~0, &info);
|
|
|
1943 |
if (code < 0)
|
|
|
1944 |
return code;
|
|
|
1945 |
|
|
|
1946 |
/* Allocate the generic copied information. */
|
|
|
1947 |
|
|
|
1948 |
glyphs = gs_alloc_struct_array(mem, glyphs_size, gs_copied_glyph_t,
|
|
|
1949 |
&st_gs_copied_glyph_element,
|
|
|
1950 |
"gs_copy_font(glyphs)");
|
|
|
1951 |
if (have_names != 0)
|
|
|
1952 |
names = gs_alloc_struct_array(mem, glyphs_size, gs_copied_glyph_name_t,
|
|
|
1953 |
&st_gs_copied_glyph_name_element,
|
|
|
1954 |
"gs_copy_font(names)");
|
|
|
1955 |
copied = gs_alloc_struct(mem, gs_font, fstype,
|
|
|
1956 |
"gs_copy_font(copied font)");
|
|
|
1957 |
cfdata = gs_alloc_struct(mem, gs_copied_font_data_t,
|
|
|
1958 |
&st_gs_copied_font_data,
|
|
|
1959 |
"gs_copy_font(wrapper data)");
|
|
|
1960 |
if (cfdata)
|
|
|
1961 |
memset(cfdata, 0, sizeof(*cfdata));
|
|
|
1962 |
if (glyphs == 0 || (names == 0 && have_names) || copied == 0 ||
|
|
|
1963 |
cfdata == 0
|
|
|
1964 |
) {
|
|
|
1965 |
code = gs_note_error(gs_error_VMerror);
|
|
|
1966 |
goto fail;
|
|
|
1967 |
}
|
|
|
1968 |
cfdata->info = info;
|
|
|
1969 |
cfdata->dir = font->dir;
|
|
|
1970 |
if ((code = (copy_string(mem, &cfdata->info.Copyright,
|
|
|
1971 |
"gs_copy_font(Copyright)") |
|
|
|
1972 |
copy_string(mem, &cfdata->info.Notice,
|
|
|
1973 |
"gs_copy_font(Notice)") |
|
|
|
1974 |
copy_string(mem, &cfdata->info.FamilyName,
|
|
|
1975 |
"gs_copy_font(FamilyName)") |
|
|
|
1976 |
copy_string(mem, &cfdata->info.FullName,
|
|
|
1977 |
"gs_copy_font(FullName)"))) < 0
|
|
|
1978 |
)
|
|
|
1979 |
goto fail;
|
|
|
1980 |
|
|
|
1981 |
/* Initialize the copied font. */
|
|
|
1982 |
|
|
|
1983 |
memcpy(copied, font, fssize);
|
|
|
1984 |
copied->next = copied->prev = 0;
|
|
|
1985 |
copied->memory = mem;
|
|
|
1986 |
copied->is_resource = false;
|
|
|
1987 |
gs_notify_init(&copied->notify_list, mem);
|
|
|
1988 |
copied->base = copied;
|
|
|
1989 |
copied->FontMatrix = *orig_matrix;
|
|
|
1990 |
copied->client_data = cfdata;
|
|
|
1991 |
copied->procs = copied_font_procs;
|
|
|
1992 |
copied->procs.encode_char = procs->encode_char;
|
|
|
1993 |
copied->procs.glyph_info = procs->glyph_info;
|
|
|
1994 |
copied->procs.glyph_outline = procs->glyph_outline;
|
|
|
1995 |
{
|
|
|
1996 |
gs_font_base *bfont = (gs_font_base *)copied;
|
|
|
1997 |
|
|
|
1998 |
bfont->FAPI = 0;
|
|
|
1999 |
bfont->FAPI_font_data = 0;
|
|
|
2000 |
bfont->encoding_index = ENCODING_INDEX_UNKNOWN;
|
|
|
2001 |
code = uid_copy(&bfont->UID, mem, "gs_copy_font(UID)");
|
|
|
2002 |
if (code < 0)
|
|
|
2003 |
goto fail;
|
|
|
2004 |
}
|
|
|
2005 |
|
|
|
2006 |
cfdata->procs = procs;
|
|
|
2007 |
memset(glyphs, 0, glyphs_size * sizeof(*glyphs));
|
|
|
2008 |
cfdata->glyphs = glyphs;
|
|
|
2009 |
cfdata->glyphs_size = glyphs_size;
|
|
|
2010 |
cfdata->num_glyphs = 0;
|
|
|
2011 |
if (names)
|
|
|
2012 |
memset(names, 0, glyphs_size * sizeof(*names));
|
|
|
2013 |
cfdata->names = names;
|
|
|
2014 |
if (names != 0) {
|
|
|
2015 |
uint i;
|
|
|
2016 |
|
|
|
2017 |
for (i = 0; i < glyphs_size; ++i)
|
|
|
2018 |
names[i].glyph = GS_NO_GLYPH;
|
|
|
2019 |
}
|
|
|
2020 |
|
|
|
2021 |
/* Do FontType-specific initialization. */
|
|
|
2022 |
|
|
|
2023 |
code = procs->finish_copy_font(font, copied);
|
|
|
2024 |
if (code < 0)
|
|
|
2025 |
goto fail;
|
|
|
2026 |
|
|
|
2027 |
*pfont_new = copied;
|
|
|
2028 |
if (cfdata->notdef != GS_NO_GLYPH)
|
|
|
2029 |
code = gs_copy_glyph(font, cfdata->notdef, copied);
|
|
|
2030 |
return code;
|
|
|
2031 |
|
|
|
2032 |
fail:
|
|
|
2033 |
/* Free storage and exit. */
|
|
|
2034 |
if (cfdata) {
|
|
|
2035 |
uncopy_string(mem, &cfdata->info.FullName,
|
|
|
2036 |
"gs_copy_font(FullName)");
|
|
|
2037 |
uncopy_string(mem, &cfdata->info.FamilyName,
|
|
|
2038 |
"gs_copy_font(FamilyName)");
|
|
|
2039 |
uncopy_string(mem, &cfdata->info.Notice,
|
|
|
2040 |
"gs_copy_font(Notice)");
|
|
|
2041 |
uncopy_string(mem, &cfdata->info.Copyright,
|
|
|
2042 |
"gs_copy_font(Copyright)");
|
|
|
2043 |
gs_free_object(mem, cfdata, "gs_copy_font(wrapper data)");
|
|
|
2044 |
}
|
|
|
2045 |
gs_free_object(mem, copied, "gs_copy_font(copied font)");
|
|
|
2046 |
gs_free_object(mem, names, "gs_copy_font(names)");
|
|
|
2047 |
gs_free_object(mem, glyphs, "gs_copy_font(glyphs)");
|
|
|
2048 |
return code;
|
|
|
2049 |
}
|
|
|
2050 |
|
|
|
2051 |
/*
|
|
|
2052 |
* Copy a glyph, including any sub-glyphs.
|
|
|
2053 |
*/
|
|
|
2054 |
int
|
|
|
2055 |
gs_copy_glyph(gs_font *font, gs_glyph glyph, gs_font *copied)
|
|
|
2056 |
{
|
|
|
2057 |
return gs_copy_glyph_options(font, glyph, copied, 0);
|
|
|
2058 |
}
|
|
|
2059 |
int
|
|
|
2060 |
gs_copy_glyph_options(gs_font *font, gs_glyph glyph, gs_font *copied,
|
|
|
2061 |
int options)
|
|
|
2062 |
{
|
|
|
2063 |
int code;
|
|
|
2064 |
#define MAX_GLYPH_PIECES 64 /* arbitrary, but 32 is too small - bug 687698. */
|
|
|
2065 |
gs_glyph glyphs[MAX_GLYPH_PIECES];
|
|
|
2066 |
uint count = 1, i;
|
|
|
2067 |
|
|
|
2068 |
if (copied->procs.font_info != copied_font_info)
|
|
|
2069 |
return_error(gs_error_rangecheck);
|
|
|
2070 |
code = cf_data(copied)->procs->copy_glyph(font, glyph, copied, options);
|
|
|
2071 |
if (code != 0)
|
|
|
2072 |
return code;
|
|
|
2073 |
/* Copy any sub-glyphs. */
|
|
|
2074 |
glyphs[0] = glyph;
|
|
|
2075 |
code = psf_add_subset_pieces(glyphs, &count, MAX_GLYPH_PIECES, MAX_GLYPH_PIECES,
|
|
|
2076 |
font);
|
|
|
2077 |
if (code < 0)
|
|
|
2078 |
return code;
|
|
|
2079 |
if (count > MAX_GLYPH_PIECES)
|
|
|
2080 |
return_error(gs_error_limitcheck);
|
|
|
2081 |
for (i = 1; i < count; ++i) {
|
|
|
2082 |
code = gs_copy_glyph_options(font, glyphs[i], copied,
|
|
|
2083 |
(options & ~COPY_GLYPH_NO_OLD) | COPY_GLYPH_BY_INDEX);
|
|
|
2084 |
if (code < 0)
|
|
|
2085 |
return code;
|
|
|
2086 |
}
|
|
|
2087 |
/*
|
|
|
2088 |
* Because 'seac' accesses the Encoding of the font as well as the
|
|
|
2089 |
* glyphs, we have to copy the Encoding entries as well.
|
|
|
2090 |
*/
|
|
|
2091 |
if (count == 1)
|
|
|
2092 |
return 0;
|
|
|
2093 |
switch (font->FontType) {
|
|
|
2094 |
case ft_encrypted:
|
|
|
2095 |
case ft_encrypted2:
|
|
|
2096 |
break;
|
|
|
2097 |
default:
|
|
|
2098 |
return 0;
|
|
|
2099 |
}
|
|
|
2100 |
#if 0 /* No need to add subglyphs to the Encoding because they always are
|
|
|
2101 |
taken from StandardEncoding (See the Type 1 spec about 'seac').
|
|
|
2102 |
Attempt to add them to the encoding can cause a conflict,
|
|
|
2103 |
if the encoding specifies different glyphs for these char codes
|
|
|
2104 |
(See the bug #687172). */
|
|
|
2105 |
{
|
|
|
2106 |
gs_copied_glyph_t *pcg;
|
|
|
2107 |
gs_glyph_data_t gdata;
|
|
|
2108 |
gs_char chars[2];
|
|
|
2109 |
|
|
|
2110 |
gdata.memory = font->memory;
|
|
|
2111 |
/* Since we just copied the glyph, copied_glyph_slot can't fail. */
|
|
|
2112 |
DISCARD(copied_glyph_slot(cf_data(copied), glyph, &pcg));
|
|
|
2113 |
gs_glyph_data_from_string(&gdata, pcg->gdata.data, pcg->gdata.size,
|
|
|
2114 |
NULL);
|
|
|
2115 |
code = gs_type1_piece_codes((gs_font_type1 *)font, &gdata, chars);
|
|
|
2116 |
if (code <= 0 || /* 0 is not possible here */
|
|
|
2117 |
(code = gs_copied_font_add_encoding(copied, chars[0], glyphs[1])) < 0 ||
|
|
|
2118 |
(code = gs_copied_font_add_encoding(copied, chars[1], glyphs[2])) < 0
|
|
|
2119 |
)
|
|
|
2120 |
return code;
|
|
|
2121 |
}
|
|
|
2122 |
#endif
|
|
|
2123 |
return 0;
|
|
|
2124 |
#undef MAX_GLYPH_PIECES
|
|
|
2125 |
}
|
|
|
2126 |
|
|
|
2127 |
/*
|
|
|
2128 |
* Add an Encoding entry to a copied font. The glyph need not already have
|
|
|
2129 |
* been copied.
|
|
|
2130 |
*/
|
|
|
2131 |
int
|
|
|
2132 |
gs_copied_font_add_encoding(gs_font *copied, gs_char chr, gs_glyph glyph)
|
|
|
2133 |
{
|
|
|
2134 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
2135 |
|
|
|
2136 |
if (copied->procs.font_info != copied_font_info)
|
|
|
2137 |
return_error(gs_error_rangecheck);
|
|
|
2138 |
return cfdata->procs->add_encoding(copied, chr, glyph);
|
|
|
2139 |
}
|
|
|
2140 |
|
|
|
2141 |
/*
|
|
|
2142 |
* Copy all the glyphs and, if relevant, Encoding entries from a font. This
|
|
|
2143 |
* is equivalent to copying the glyphs and Encoding entries individually,
|
|
|
2144 |
* and returns errors under the same conditions.
|
|
|
2145 |
*/
|
|
|
2146 |
int
|
|
|
2147 |
gs_copy_font_complete(gs_font *font, gs_font *copied)
|
|
|
2148 |
{
|
|
|
2149 |
int index, code = 0;
|
|
|
2150 |
gs_glyph_space_t space = GLYPH_SPACE_NAME;
|
|
|
2151 |
gs_glyph glyph;
|
|
|
2152 |
|
|
|
2153 |
/*
|
|
|
2154 |
* For Type 1 fonts and CIDFonts, enumerating the glyphs using
|
|
|
2155 |
* GLYPH_SPACE_NAME will cover all the glyphs. (The "names" of glyphs
|
|
|
2156 |
* in CIDFonts are CIDs, but that is not a problem.) For Type 42 fonts,
|
|
|
2157 |
* however, we have to copy by name once, so that we also copy the
|
|
|
2158 |
* name-to-GID mapping (the CharStrings dictionary in PostScript), and
|
|
|
2159 |
* then copy again by GID, to cover glyphs that don't have names.
|
|
|
2160 |
*/
|
|
|
2161 |
for (;;) {
|
|
|
2162 |
for (index = 0;
|
|
|
2163 |
code >= 0 &&
|
|
|
2164 |
(font->procs.enumerate_glyph(font, &index, space, &glyph),
|
|
|
2165 |
index != 0);
|
|
|
2166 |
)
|
|
|
2167 |
code = gs_copy_glyph(font, glyph, copied);
|
|
|
2168 |
/* For Type 42 fonts, if we copied by name, now copy again by index. */
|
|
|
2169 |
if (space == GLYPH_SPACE_NAME && font->FontType == ft_TrueType)
|
|
|
2170 |
space = GLYPH_SPACE_INDEX;
|
|
|
2171 |
else
|
|
|
2172 |
break;
|
|
|
2173 |
}
|
|
|
2174 |
if (cf_data(copied)->Encoding != 0)
|
|
|
2175 |
for (index = 0; code >= 0 && index < 256; ++index) {
|
|
|
2176 |
glyph = font->procs.encode_char(font, (gs_char)index,
|
|
|
2177 |
GLYPH_SPACE_NAME);
|
|
|
2178 |
if (glyph != GS_NO_GLYPH)
|
|
|
2179 |
code = gs_copied_font_add_encoding(copied, (gs_char)index,
|
|
|
2180 |
glyph);
|
|
|
2181 |
}
|
|
|
2182 |
if (copied->FontType != ft_composite) {
|
|
|
2183 |
gs_font_base *bfont = (gs_font_base *)font;
|
|
|
2184 |
gs_font_base *bcopied = (gs_font_base *)copied;
|
|
|
2185 |
|
|
|
2186 |
bcopied->encoding_index = bfont->encoding_index;
|
|
|
2187 |
bcopied->nearest_encoding_index = bfont->nearest_encoding_index;
|
|
|
2188 |
}
|
|
|
2189 |
return code;
|
|
|
2190 |
}
|
|
|
2191 |
|
|
|
2192 |
/*
|
|
|
2193 |
* Check whether specified glyphs can be copied from another font.
|
|
|
2194 |
* It means that (1) fonts have same hinting parameters and
|
|
|
2195 |
* (2) font subsets for the specified glyph set don't include different
|
|
|
2196 |
* outlines or metrics. Possible returned values :
|
|
|
2197 |
* 0 (incompatible), 1 (compatible), < 0 (error)
|
|
|
2198 |
*/
|
|
|
2199 |
int
|
|
|
2200 |
gs_copied_can_copy_glyphs(const gs_font *cfont, const gs_font *ofont,
|
|
|
2201 |
gs_glyph *glyphs, int num_glyphs, int glyphs_step,
|
|
|
2202 |
bool check_hinting)
|
|
|
2203 |
{
|
|
|
2204 |
int code = 0;
|
|
|
2205 |
|
|
|
2206 |
if (cfont == ofont)
|
|
|
2207 |
return 1;
|
|
|
2208 |
if (cfont->FontType != ofont->FontType)
|
|
|
2209 |
return 0;
|
|
|
2210 |
if (cfont->WMode != ofont->WMode)
|
|
|
2211 |
return 0;
|
|
|
2212 |
if (cfont->font_name.size == 0 || ofont->font_name.size == 0) {
|
|
|
2213 |
if (cfont->key_name.size != ofont->key_name.size ||
|
|
|
2214 |
memcmp(cfont->key_name.chars, ofont->key_name.chars,
|
|
|
2215 |
cfont->font_name.size))
|
|
|
2216 |
return 0; /* Don't allow to merge random fonts. */
|
|
|
2217 |
} else {
|
|
|
2218 |
if (cfont->font_name.size != ofont->font_name.size ||
|
|
|
2219 |
memcmp(cfont->font_name.chars, ofont->font_name.chars,
|
|
|
2220 |
cfont->font_name.size))
|
|
|
2221 |
return 0; /* Don't allow to merge random fonts. */
|
|
|
2222 |
}
|
|
|
2223 |
if (check_hinting) {
|
|
|
2224 |
switch(cfont->FontType) {
|
|
|
2225 |
case ft_encrypted:
|
|
|
2226 |
case ft_encrypted2:
|
|
|
2227 |
if (!same_type1_hinting((const gs_font_type1 *)cfont,
|
|
|
2228 |
(const gs_font_type1 *)ofont))
|
|
|
2229 |
return 0;
|
|
|
2230 |
code = 1;
|
|
|
2231 |
break;
|
|
|
2232 |
case ft_TrueType:
|
|
|
2233 |
code = same_type42_hinting((gs_font_type42 *)cfont,
|
|
|
2234 |
(gs_font_type42 *)ofont);
|
|
|
2235 |
break;
|
|
|
2236 |
case ft_CID_encrypted:
|
|
|
2237 |
if (!gs_is_CIDSystemInfo_compatible(
|
|
|
2238 |
gs_font_cid_system_info(cfont),
|
|
|
2239 |
gs_font_cid_system_info(ofont)))
|
|
|
2240 |
return 0;
|
|
|
2241 |
code = same_cid0_hinting((const gs_font_cid0 *)cfont,
|
|
|
2242 |
(const gs_font_cid0 *)ofont);
|
|
|
2243 |
break;
|
|
|
2244 |
case ft_CID_TrueType:
|
|
|
2245 |
if (!gs_is_CIDSystemInfo_compatible(
|
|
|
2246 |
gs_font_cid_system_info(cfont),
|
|
|
2247 |
gs_font_cid_system_info(ofont)))
|
|
|
2248 |
return 0;
|
|
|
2249 |
code = same_cid2_hinting((const gs_font_cid2 *)cfont,
|
|
|
2250 |
(const gs_font_cid2 *)ofont);
|
|
|
2251 |
break;
|
|
|
2252 |
default:
|
|
|
2253 |
return_error(gs_error_unregistered); /* Must not happen. */
|
|
|
2254 |
}
|
|
|
2255 |
if (code <= 0) /* an error or false */
|
|
|
2256 |
return code;
|
|
|
2257 |
}
|
|
|
2258 |
return compare_glyphs(cfont, ofont, glyphs, num_glyphs, glyphs_step, 0);
|
|
|
2259 |
}
|
|
|
2260 |
|
|
|
2261 |
/* Extension glyphs may be added to a font to resolve
|
|
|
2262 |
glyph name conflicts while conwerting a PDF Widths into Metrics.
|
|
|
2263 |
This function drops them before writing out an embedded font. */
|
|
|
2264 |
int
|
|
|
2265 |
copied_drop_extension_glyphs(gs_font *copied)
|
|
|
2266 |
{
|
|
|
2267 |
/* Note : This function drops 'used' flags for some glyphs
|
|
|
2268 |
and truncates glyph names. Can't use the font
|
|
|
2269 |
for outlining|rasterization|width after applying it.
|
|
|
2270 |
*/
|
|
|
2271 |
gs_copied_font_data_t *const cfdata = cf_data(copied);
|
|
|
2272 |
uint gsize = cfdata->glyphs_size, i;
|
|
|
2273 |
const int sl = strlen(gx_extendeg_glyph_name_separator);
|
|
|
2274 |
|
|
|
2275 |
for (i = 0; i < gsize; i++) {
|
|
|
2276 |
gs_copied_glyph_t *pslot = &cfdata->glyphs[i];
|
|
|
2277 |
gs_copied_glyph_name_t *name;
|
|
|
2278 |
int l, j, k, i0;
|
|
|
2279 |
|
|
|
2280 |
if (!pslot->used)
|
|
|
2281 |
continue;
|
|
|
2282 |
name = &cfdata->names[i];
|
|
|
2283 |
l = name->str.size - sl, j;
|
|
|
2284 |
|
|
|
2285 |
for (j = 0; j < l; j ++)
|
|
|
2286 |
if (!memcmp(gx_extendeg_glyph_name_separator, name->str.data + j, sl))
|
|
|
2287 |
break;
|
|
|
2288 |
if (j >= l)
|
|
|
2289 |
continue;
|
|
|
2290 |
/* Found an extension name.
|
|
|
2291 |
Find the corresponding non-extended one. */
|
|
|
2292 |
i0 = i;
|
|
|
2293 |
for (k = 0; k < gsize; k++)
|
|
|
2294 |
if (cfdata->glyphs[k].used &&
|
|
|
2295 |
cfdata->names[k].str.size == j &&
|
|
|
2296 |
!memcmp(cfdata->names[k].str.data, name->str.data, j) &&
|
|
|
2297 |
!bytes_compare(pslot->gdata.data, pslot->gdata.size,
|
|
|
2298 |
cfdata->glyphs[k].gdata.data, cfdata->glyphs[k].gdata.size)) {
|
|
|
2299 |
i0 = k;
|
|
|
2300 |
break;
|
|
|
2301 |
}
|
|
|
2302 |
/* Truncate the extended glyph name. */
|
|
|
2303 |
cfdata->names[i0].str.size = j;
|
|
|
2304 |
/* Drop others with same prefix. */
|
|
|
2305 |
for (k = 0; k < gsize; k++)
|
|
|
2306 |
if (k != i0 && cfdata->glyphs[k].used &&
|
|
|
2307 |
cfdata->names[k].str.size >= j + sl &&
|
|
|
2308 |
!memcmp(cfdata->names[k].str.data, name->str.data, j) &&
|
|
|
2309 |
!memcmp(gx_extendeg_glyph_name_separator, name + j, sl) &&
|
|
|
2310 |
!bytes_compare(pslot->gdata.data, pslot->gdata.size,
|
|
|
2311 |
cfdata->glyphs[k].gdata.data, cfdata->glyphs[k].gdata.size))
|
|
|
2312 |
cfdata->glyphs[k].used = false;
|
|
|
2313 |
}
|
|
|
2314 |
return 0;
|
|
|
2315 |
}
|