home *** CD-ROM | disk | FTP | other *** search
- % Copyright (C) 1995, 2000 Aladdin Enterprises. 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.
- %
- % For more information about licensing, please refer to
- % http://www.ghostscript.com/licensing/. For information on
- % commercial licensing, go to http://www.artifex.com/licensing/ or
- % contact Artifex Software, Inc., 101 Lucas Valley Road #110,
- % San Rafael, CA 94903, U.S.A., +1(415)492-9861.
-
- % $Id: gs_cidfn.ps,v 1.18.4.5 2002/04/03 07:31:14 mpsuzuki Exp $
- % 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
- } bind put
-
- % 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 not {
- dup /FontMatrix [0.001 0 0 0.001 0 0] put
- dup /FDArray get {
- /FontMatrix get [1000 0 0 1000 0 0] 1 index concatmatrix pop
- } forall
- } if
- 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
- } bind put
-
- % ------ CIDFontType 2 (FontType 11) ------ %
-
- dup 2 {
- 11 .checkfonttype pop
- 1 index exch .buildfont11 exch pop
- } bind put
-
- 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.
- currentdevice .devicename /pdfwrite eq { stop } if
- currentfile fileposition
- } .internalstopped {
- % File is not positionable, or uses hex data.
- % Load the data now.
- cleartomark exch (Hex) eq
- { { currentfile exch readhexstring pop } }
- { { currentfile exch readstring pop } }
- ifelse exch
- % Stack: readproc 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 exec } if
- } {
- mark 3 1 roll {
- % Stack: mark str ... readproc length
- dup 0 eq { pop exit } if
- dup 65400 .min dup string 3 index exec
- % Stack: mark str ... readproc length newstrlen newstr
- 4 1 roll sub
- } loop
- counttomark 1 add 1 roll ]
- } ifelse
- /GlyphData exch def
- % If we were reading hex data, skip past the >.
- 2 get { readhexstring } 0 get eq {
- currentfile 0 (>) .subfiledecode dup flushfile closefile
- } if
- } {
- % 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
-
- currentdict end
-
- % ---------------- Rendering ---------------- %
-
- % ------ 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
-
- % ------ 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>
- dup /CIDFontType get //.cidfonttypes exch get exec
- } odef
-
- /.loadcidfontwithoutpop {
- dup 4 string .peekstring pop dup (ttcf) eq exch (\000\001\000\000) eq or {
- .loadcjkvttcidfont
- } {
- /CIDFont /Category findresource /.Instances get
- dup length 2 div cvi dict .copydict exch
- .loadfont
- % Stack: <<original-.Instances>>
- /CIDFont /Category findresource /.Instances get {% forall
- % <<original-.Instances>> key value
- 2 index 2 index known {
- pop pop
- } {
- pop exch pop /CIDFont findresource exit
- } ifelse
- } forall
- dup /CIDFontName known not {
- {Internal Error in .loadcidfontwithoutpop} stop
- } if
- } ifelse
- } bind def
-
- /.loadcidfont {
- .loadcidfontwithoutpop pop
- } bind def
-
- % Define the name of the CID font map file.
- /defaultcidfontmap (CIDFnmap) def
- userdict /CIDFontmap 10 dict put
-
- % <dict> <file> .readCIDFontmap <dict>
- % Code from gs_fonts.ps::.readFontmap
- /.readCIDFontmap {
- { dup token not { closefile exit } if
- % This is a hack to get around the absurd habit of MS-DOS editors
- % of adding an EOF character at the end of the file.
- dup (\032) eq { pop closefile exit } if
- 1 index token not
- { (CIDFontmap entry for ) print dup =only
- ( has no associated file or alias name! Giving up.) = flush
- {.readCIDFontmap} 0 get 1 .quit
- } if
- dup type dup /stringtype eq exch /nametype eq or not
- { (CIDFontmap entry for ) print 1 index =only
- ( has an invalid file or alias name! Giving up.) = flush
- {.readCIDFontmap} 0 get 1 .quit
- } if
- % stack: dict file cidfontname filename|aliasname
- 1 index type /stringtype eq
- 1 index type /nametype eq and 1 index xcheck and
- 1 index /run eq 2 index /.runlibfile eq or and {
- % This is an inclusion entry.
- pop findlibfile { exch pop } { file } ifelse
- 2 index exch .readCIDFontmap pop
- } {
- % This is a real entry.
- % stack: dict file cidfontname filename|aliasname
-
- % Before staring a game, we need a hack.
- % Some CJK pdf file contains a cidfontname that cannot
- % be represented as a nametype literal. Instead, the
- % cidfontname is represented as a string literal.
- % If a cidfontname is represented as a stringtype object,
- % it must be converted to a nametype object.
- % We handle such a case here.
- exch dup type /stringtype eq {cvn} if exch
-
- % stack: dict file cidfontname filename|aliasname
- % Read and pop tokens until a semicolon.
- { 2 index token not
- { (CIDFontmap entry for ) print 1 index =only
- ( ends prematurely! Giving up.) = flush
- {.readCIDFontmap} 0 get 1 .quit
- } if
- dup /; eq { pop 3 index 3 1 roll .growput exit } if
- % Format:
- % /CIDFontname (file) ttc-index ;
- % /CIDFontname (file) /Code->CID-dict ;
- % /CIDFontname (file) ttc-index /Code->CID-dict ;
- %
- % e.g.
- % /HG-MinchoL (hgminchol.ttc) 1 /Adobe-Japan1-Unicode ;
- % /HG-PMinchoL (hgminchol.ttc) 2 /Adobe-Japan1-Unicode ;
- % /HG-MinchoL-J2 (hgminchol.ttc) 1 /Adobe-Japan2-Unicode ;
- % /HG-PGothicB (hggothicb.ttc) 2 ;
- % /HG-GothicB-J2 (hggothicb.ttc) /Adobe-Japan2-Unicode ;
- %
- % CID Fontmap entry is stored into CIDFontmap dict as an array.
- % Array format:
- % [filename ttc-index]
- % [filename /Code->CID-dict]
- % [filename ttc-index /Code->CID-dict]
- %
- % Type:
- % filename: string
- % ttc-index: integer
- % /Code->CID-dict: name
- %
- % stack: dict file cidfontname filename something
- 1 index type /nametype eq {
- (CIDFontmap entry for ) print 2 index =only
- (defines an alias! Giving up.) = flush
- {.readCIDFontmap} 0 get 1 .quit
- } if
- % stack: dict file cidfontname filename something
- exch [ exch 3 -1 roll
- % stack: dict file cidfontname [ filename something
- dup type /integertype eq {
- % stack: dict file cidfontname [ filename int
- % Read next token
- 4 index token not
- { (CIDFontmap entry for ) print 3 index =only
- ( ends prematurely! Giving up.) = flush
- {.readCIDFontmap} 0 get 1 .quit
- } if
- } if
- % stack: dict file cidfontname [ filename int something
- % or dict file cidfontname [ filename something
- dup /; eq not 1 index type /nametype eq and {
- % stack: dict file cidfontname [ filename /Code->CID
- % or dict file cidfontname [ filename int /Code->CID
- % Read next token
- counttomark 2 eq {4} {5} ifelse index token not
- { (CIDFontmap entry for ) print
- counttomark 2 eq {3} {4} ifelse index =only
- ( ends prematurely! Giving up.) = flush
- {.readCIDFontmap} 0 get 1 .quit
- } if
- } if
- % stack: dict file cidfontname [ filename int /Code->CID something
- % or dict file cidfontname [ filename /Code->CID something
- dup /; eq {
- pop ]
- 3 index 3 1 roll .growput exit
- } if
- pop
- } loop
- } ifelse
- } loop
- } bind def
-
- % <file> .loadCIDFontmap -
- /.loadCIDFontmap {
- userdict /CIDFontmap get exch
- .readCIDFontmap pop
- } bind def
-
- % Code from .loadinitialfonts
- /.loadinitialcidfonts
- { NOCIDFONTMAP not
- { /CIDFONTMAP where
- { pop [ CIDFONTMAP .pathlist ]
- {
- dup VMDEBUG findlibfile
- { exch pop .loadCIDFontmap }
- { /undefinedfilename signalerror }
- ifelse
- }
- }
- { LIBPATH
- {
- defaultcidfontmap 1 index .filenamedirseparator
- exch concatstrings concatstrings dup VMDEBUG
- (r) { file } .internalstopped
- { pop pop } { .loadCIDFontmap } ifelse
- }
- }
- ifelse forall
- }
- if
- %%% Do nothing
- } bind def
-
- .loadinitialcidfonts
-
- /CIDFontmapHandler <<
- /nametype {
- /CIDFont findresource
- /CIDFont defineresource pop
- } bind
- /stringtype {
- findlibfile {
- exch pop
- % Define CIDFont with a name defined in the font file
- .loadcidfontwithoutpop
- % Define CIDFont with a name define in CIDFontmap
- dup length 0 ne {
- dup /CIDFontName get 2 index eq {
- % Avoid duplicated defineresource for the same CIDFont
- pop pop
- } {
- % Give a name different from the name defined in the file
- /CIDFont defineresource pop
- } ifelse
- } {
- pop pop
- } ifelse
- } {
- /undefinedresource signalerror
- } ifelse
- } bind
- /arraytype {
- % Replace filename in the array with file
- dup 0 get
- findlibfile {
- 3 1 roll pop
- copyarray dup 3 1 roll 0
- 3 -1 roll put
- % Expand array
- aload pop .loadcjkvttcidfont
- /CIDFont defineresource pop
- } {
- /undefinedresource signalerror
- } ifelse
- } bind
- >> def
-
- %%% CIDFontmap Public Interface
- % /CIDFontName .CIDFontmapKnown true|false
- /.CIDFontmapKnown {
- userdict /CIDFontmap get exch known
- } bind def
-
- % /CIDFontName .CIDFontmapKnownget value true
- % /CIDFontName .CIDFontmapKnownget false
- /.CIDFontmapKnownget {
- userdict /CIDFontmap get exch .knownget
- } bind def
-
- % /CIDFontName value .CIDFontmapRunHandler -
- /.CIDFontmapRunHandler {
- dup CIDFontmapHandler exch type get .execasresource
- } bind def
-
- % proc .CIDFontmapForAll -
- /.CIDFontmapForAll {
- CIDFontmap exch forall
- } bind def
-
- % proc .CIDFontmapForAllKey -
- /.CIDFontmapForAllKey {
- [ /pop cvx 3 -1 roll /exec cvx ] cvx .CIDFontmapForAll
- } bind def
-
- /CIDFont /Generic /Category findresource dup length dict .copydict
- dup /InstanceType /dicttype put
- dup /DefineResource {
- .buildcidfont
- /Generic /Category findresource /DefineResource get exec
- } put
- /.originalresourceforall 1 index /ResourceForAll get def
- dup /ResourceForAll {
- currentglobal false setglobal
- % (template) (proc) (scratch) g
- [ % (template) (proc) (scratch) g [
- %
- % 1. Gather CIDFont name in /Resource/CIDFont
- %
- 4 index % (template) (proc) (scratch) g [ (template)
- {cvn} % (template) (proc) (scratch) g [ (template) {cvn}
- 4 index % (template) (proc) (scratch) g [ (template) {cvn} (scratch)
- .originalresourceforall
- % (template) (proc) (scratch) g [ ...
- %
- % 2. Gather CIDFont name in CIDFontmap
- %
- {
- dup length string cvs
- dup % (template) (proc) (scratch) g [ ... (Key) (Key)
- counttomark 4 add index
- % (template) (proc) (scratch) g [ ... (Key) (Key) (template)
- .stringmatch {
- cvn
- % (template) (proc) (scratch) g [ ... /Key
- % 3. Remove duplicated /Key
- counttomark -1 1 {
- index 1 index eq {
- pop exit % Duplicated
- } if
- } for
- } {
- pop
- } ifelse
- } .CIDFontmapForAllKey
- ]
- exch setglobal
- %
- % 4. Build extended procedure
- %
- % (template) (proc) (scratch) [CIDFontmapKeys]
- 4 -1 roll pop
- % (proc) (scratch) [CIDFontmapKeys]
- 3 1 roll
- % [CIDFontmapKeys] (proc) (scratch)
- [ exch {cvs} aload pop
- % [CIDFontmapKeys] (proc) [ (scratch) -cvs-
- 4 -1 roll aload pop ] cvx
- % [CIDFontmapKeys] proc++
- %
- % 5. Exec
- %
- forall
- } put
-
- % CIDFonts may be defined in CFF OpenType files.
- % Check for this here.
- /.loadcidfontresource {
- dup .ResourceFile {
- {.loadcidfont} .execasresource
- } {
- pop dup
- .CIDFontmapKnownget {
- .CIDFontmapRunHandler
- } {
- dup /undefinedresource signalerror
- } ifelse
- } ifelse
- } bind def
- dup /.LoadResource {
- currentglobal {
- .loadcidfontresource
- } {
- true setglobal {.loadcidfontresource} stopped false setglobal {stop} if
- } ifelse
- } bind put
- dup /.ResourceFileStatus {
- dup .CIDFontmapKnown {
- pop 2 -1 true
- } {
- .ResourceFile { closefile 2 -1 true } { pop false } ifelse
- } 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
-