1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
|
% Copyright (C) 2001-2018 Artifex Software, Inc.
% All Rights Reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%
% Refer to licensing information at http://www.artifex.com or contact
% Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
% CA 94945, U.S.A., +1(415)492-9861, for further information.
%
% ProcSet for implementing CIDFont and CIDMap resources.
% When this is run, systemdict is still writable.
% ---------------- Defining CIDFont resources ---------------- %
% Define a CIDFont resource. This is the defineresource implementation for
% the CIDFont resource category.
/.checkfonttype { % <cidfont> <fonttype> .checkfonttype <cidfont> <new?>
1 index /FID known {
1 index /FontType get ne {
/definefont cvx /invalidfont signalerror
} if //false
} {
1 index /FontType 3 -1 roll put //true
} ifelse
} bind def
/.cidfonttypes where { pop } { /.cidfonttypes 6 dict def } ifelse
.cidfonttypes
30 dict begin
% The key in .cidfonttypes is the CIDFontType value;
% the value is a procedure that takes a font name and the CIDFont dictionary
% and replaces the latter with a real font.
% ------ CIDFontType 0 (FontType 9) ------ %
% We add the following entries to the CIDFont dictionary, in addition to
% the ones documented by Adobe:
% SubrCache - dictionary for caching Subr arrays
% For CIDFonts where we read the data from disk incrementally:
% GlyphData is 0 (arbitrary)
% DataSource - a ReusableStreamDecode filter for the data
% We also add a FID entry, and possibly a Subrs entry, to each element of
% FDArray.
dup 0 {
9 .checkfonttype {
/CIDInit /ProcSet findresource begin
.completefont9
end
} if
1 index exch .buildfont9 exch pop
} put % Don't bind it here, because gs_fapi.ps redefines .buildfont9
% Add entries to a new CIDFontType 0 font per documentation (FontMatrix)
% or for .buildfont9 (FDArray.Private.Subrs).
/.completefont9 { % <cidfont0> .completefont9 <cidfont0>
currentglobal 3 1 roll dup gcheck setglobal
dup /FontMatrix known {
dup /FDArray get {
dup /FontMatrix get 0 get 1000000 ge {
/FontMatrix matrix put % Bug 688517
} {
pop
} ifelse
} forall
} {
dup /FontMatrix [0.001 0 0 0.001 0 0] put
dup /FDArray get {
currentglobal exch dup gcheck setglobal
dup /FontMatrix get {1000 0 0 1000 0 0} matrix concatmatrix
/FontMatrix exch put
setglobal
} forall
} ifelse
dup /FDArray get {
% Read the Subrs if necessary.
dup /Private get dup /Subrs known not {
dup /SubrCount .knownget {
% Stack: font Private SubrCount
currentglobal 3 1 roll 1 index gcheck setglobal
array 1 index /Subrs 3 -1 roll put
% Stack: font global Private
2 index begin begin .loadsubrs end end
setglobal
} {
pop
} ifelse readonly pop
} {
pop pop
} ifelse
} forall
3 -1 roll setglobal
} bind def
% Read some Subrs for the current Type 1 subfont.
% The subfont's Private dict is currentdict; the CIDFont itself is the
% next dictionary on the stack.
/.readsubrs { % <Subrs> <start> .readsubrs <Subrs>
1 SubrCount 1 sub {
dup SDBytes mul SubrMapOffset add
dup SDBytes .readint exch SDBytes add SDBytes .readint
1 index sub string ReadString 2 index 3 1 roll put
} for
} bind def
% Ensure that all the Subrs for the current Type 1 subfont are loaded.
% The subfont's Private dict is currentdict; the CIDFont itself is the
% next dictionary on the stack.
/.loadsubrs {
Subrs length 0 ne {
SubrCache SubrMapOffset .knownget {
% We've already loaded some Subrs at this offset.
% Make sure we've got as many as we need.
dup length SubrCount lt {
% We need to load more.
SubrCount array exch 1 index copy length .readsubrs
SubrCache SubrMapOffset 2 index put
} if
} {
% We haven't loaded any Subrs at this offset yet.
SubrCount array 0 .readsubrs
SubrCache SubrMapOffset 2 index put
} ifelse
Subrs copy pop
} if
} bind def
% ------ CIDFontType 1 (FontType 10) ------ %
dup 1 {
10 .checkfonttype pop
1 index exch .buildfont10 exch pop
} put % Don't bind it here because gs_fapi.ps redefines .buildfont10
% ------ CIDFontType 2 (FontType 11) ------ %
dup 2 {
11 .checkfonttype pop
1 index exch .buildfont11 exch pop
} put % Don't bind it here because gs_fapi.ps redefines .buildfont11
pop % .cidfonttypes
% ---------------- Reading CIDFontType 0 files ---------------- %
/StartData { % <(Binary)|(Hex)> <datalength> StartData -
% (currentdict is CID font dict)
% If we're loading a resource file and the data format is
% binary, we can just save a pointer to the data and load it
% incrementally.
mark {
% Previous versions of this code made provisions for
% reading hex-encoded data incrementally. Since hex data
% doesn't seem to be used in practice, we no longer bother.
2 index (Binary) ne { stop } if
currentfile .currentresourcefile ne { stop } if
% Hack: the pdfwrite driver relies on finalization to write
% out fonts. However, the font may be finalized after the
% resource file, in which case the resource file will be
% closed. So if the current output device is pdfwrite,
% don't use incremental loading.
/AllowIncrementalCFF /GetDeviceParam .special_op {
exch pop {stop}if
}if
currentfile fileposition
} .internalstopped {
% File is not positionable, or uses hex data.
% Load the data now.
cleartomark exch
currentfile exch
(Hex) eq { /ASCIIHexDecode filter } if
exch
% Stack: file length
dup 65400 le {
% readstring with a 0-length string causes a rangecheck,
% but a data length of 0 is allowed.
string dup () ne { 1 index exch readstring pop } if
} {
mark 3 1 roll {
% Stack: mark str ... file length
dup 0 eq { pop exit } if
dup 65400 .min dup string 3 index exch readstring pop
% Stack: mark str ... file length newstrlen newstr
4 1 roll sub
} loop
counttomark 1 add 1 roll ]
} ifelse
/GlyphData exch def
dup currentfile eq { pop } { closefile } ifelse
} {
% File is positionable and binary, just save a pointer.
% Stack: (Binary) length -mark- pos
/GlyphData 0 def
exch pop 3 -1 roll pop exch
% Stack: pos length
/DataSource currentfile 2 index () .subfiledecode //true .reusablestream def
currentfile 3 1 roll add setfileposition
} ifelse
/SubrCache 10 dict def
CIDFontName currentdict /CIDFont defineresource pop
end % CID font dict
end % resource category dict
} bind def
% Some Adobe fonts include the line
% /Setup /cid_Setup load def
% This is apparently included only to prevent proper, conforming PostScript
% interpreters (as opposed to ATM or a special Adobe font loader) from
% loading the font, since Setup is not referenced anywhere else in the file.
/cid_Setup { } def
% ------ Generic ------ %
% Read a string at a given offset in a "file" (binary file or
% GlyphData in RAM).
/ReadString { % <pos> <string> ReadString <string>
GlyphData 0 eq {
% Read from the file.
DataSource 3 -1 roll setfileposition
DataSource exch readstring pop
} {
% Read from a string or an array of strings.
GlyphData .stringsreadstring
} ifelse
} bind def
/.stringsreadstring % <pos> <string> <strings> .stringsreadstring
% <vmstring>
{ dup type /stringtype eq
{ 3 1 roll length getinterval
}
{ { % Stack: pos string glyphdata
dup 0 get length dup 4 index gt { exit } if
4 -1 roll exch sub 3 1 roll
dup length 1 sub 1 exch getinterval
}
loop
% Stack: pos string glyphdata glyphdata[0]length
% We know no request can span more than 2 strings.
3 index 3 index length add 1 index le
{ % Request fits in a single string: just return a substring.
pop 0 get 3 1 roll length getinterval
}
{ % Request spans 2 strings. Copy the first part.
1 index 0 get 4 index 3 -1 roll 1 index sub getinterval
2 index copy
% Copy the second part.
% Stack: pos str glyphdata str1
length exch 1 get 0 3 index length
3 index sub getinterval 2 index 3 1 roll putinterval
exch pop
}
ifelse
}
ifelse
} bind def
% Interpret a byte string as a (big-endian) integer.
/.cvbsi % <bytes> .cvbsi <int>
{ 0 exch { exch 8 bitshift add } forall
} bind def
% Read an integer from binary data.
/.readint % <pos> <nbytes> .readint <int>
{ string ReadString .cvbsi
} bind def
currentdict end
% ---------------- Rendering ---------------- %
% ------ CIDFontType 0 ------ %
/.readglyphdata {
currentfont exch .type9mapcid
FDArray exch get exch
} bind def
% BuildGlyph procedure for CIDFontType 0.
% The name %Type9BuildGlyph is known to the interpreter.
/.cid0buildstring 10 string def
(%Type9BuildGlyph) cvn { % <cidfont> <cid> %Type9BuildGlyph -
.currentglobal 3 1 roll 1 index gcheck .setglobal
1 index begin
dup .readglyphdata dup //null eq {
% Substitute CID 0. **** WRONG ****
pop pop 0 .readglyphdata
} if
% Stack: cidfont cid subfont charstring
dup //null eq { pop pop pop pop } { %**** WRONG ****
4 -1 roll pop
3 1 roll exch dup 4 -1 roll 0 0 moveto
3 index /FontType get 2 eq { .type2execchar } { .type1execchar } ifelse
} ifelse %**** WRONG ****
end
.setglobal
} bind def
% ------ CIDFontType 2 ------ %
% BuildGlyph procedure for CIDFontType 2.
% The name %Type11BuildGlyph is known to the interpreter.
(%Type11BuildGlyph) cvn { % <cidfont> <cid> %Type11BuildGlyph -
% We must be prepared for out-of-range CIDs.
2 copy { .type11mapcid } .internalstopped {
pop /CharStrings get /.notdef get
} if
% Stack: cidfont cid glyphindex
1 index exch .type42execchar
} bind def
% ---------------- Define resources ---------------- %
languagelevel exch 2 .setlanguagelevel
% Define the CIDInit ProcSet resource.
% The ProcSet dictionary is still on the stack.
% We might have loaded CMap support already. However, Adobe's
% protected font downloader defines a CIDInit ProcSet that will be
% loaded from the filesystem later, so we must check specifically
% for the ProcSet being defined in VM.
/CIDInit /ProcSet 2 copy resourcestatus { pop 0 eq } { //false } ifelse {
pop pop findresource dup length 4 index length add dict .copydict
4 -1 roll exch .copydict
} {
3 -1 roll
} ifelse exch defineresource pop
% Define the CIDFont resource category.
% We break out .buildcidfont because it appears that at least for
% Type 32 (CIDFontType 4) fonts, the font can be registered in the Font
% category with only a CIDFontType and no FontType.
/.buildcidfont { % <name> <fontdict> .buildcidfont
% <name> <cidfont>
systemdict /ProvideUnicode .knownget not { //false } if {
/FontEmulationProcs /ProcSet findresource
/ProvideUnicodeDecoding get exec
} if
dup /CIDFontType get //.cidfonttypes exch get exec
} odef
/CIDFont /Generic /Category findresource dup length dict .copydict
dup /InstanceType /dicttype put
dup /DefineResource {
dup /OrigFont known not {
dup dup /OrigFont exch .growput % CPSI does it. Adding just for CET 33_all.PS conformity.
} if
dup /PaintType known not {
dup /PaintType 0 .growput % CPSI does it. Adding just for CET 33_all.PS conformity.
} if
.buildcidfont
/Generic /Category findresource /DefineResource get exec
} put
% CIDFonts may be defined in CFF OpenType files.
% Check for this here.
/.loadcidfontresource {
dup .ResourceFile {
{.loadfont} .execasresource
} {
dup /undefinedresource signalerror
} ifelse
} bind def
dup /.LoadResource {
currentglobal {
.loadcidfontresource
} {
//true setglobal {.loadcidfontresource} stopped //false setglobal {stop} if
} ifelse
} bind put
/Category defineresource pop
% Add the new FontType resources.
9 1 11 { dup /FontType defineresource pop } for
% Add the new FMapType resource.
9 dup /FMapType defineresource pop
% Define the CIDMap resource category.
% These aren't documented, but it's clear what they are for:
% to give names to CIDMaps for CIDFontType 2 fonts.
/CIDMap /Generic /Category findresource dup length dict .copydict
dup /.CheckResource {
% Allow a string, an array of strings, or (as of Adobe release 3011)
% a dictionary.
dup type dup dup /stringtype eq exch /dicttype eq or {
pop //true
} {
dup /arraytype eq exch /packedarraytype eq or {
//true exch { type /stringtype eq and } forall
} {
//false
} ifelse
} ifelse
} bind put
/Category defineresource pop
.setlanguagelevel
%% Replace 1 (gs_ciddc.ps)
(gs_ciddc.ps) runlibfile
|