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authorKarl Berry <karl@freefriends.org>2005-12-28 00:07:27 +0000
committerKarl Berry <karl@freefriends.org>2005-12-28 00:07:27 +0000
commit30dd9f517c9c093ff3319061647a4555264f7914 (patch)
tree0d7a349bf99be5a42cc9c5a80a30f3b7136c4ccd /Master/xemtex/gslib/gs_typ32.ps
parent08ab8dce83f53b0f915cb66a37bbc8478b22c307 (diff)
trunk
git-svn-id: svn://tug.org/texlive/trunk@9 c570f23f-e606-0410-a88d-b1316a301751
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+% Copyright (C) 1997 Aladdin Enterprises. All rights reserved.
+%
+% This program is free software; you can redistribute it and/or modify it
+% under the terms of the GNU General Public License as published by the
+% Free Software Foundation; either version 2 of the License, or (at your
+% option) any later version.
+%
+% This program is distributed in the hope that it will be useful, but
+% WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+% Public License for more details.
+%
+% You should have received a copy of the GNU General Public License along
+% with this program; if not, write to the Free Software Foundation, Inc.,
+% 59 Temple Place, Suite 330, Boston, MA, 02111-1307.
+
+% $Id: gs_typ32.ps,v 1.3.2.2.2.1 2003/04/12 14:02:38 giles Exp $
+% Initialization file for Type 32 fonts.
+
+% ------ Type 32 fonts ------ %
+
+% We need LanguageLevel 2 or higher in order to have defineresource.
+languagelevel dup 2 .max .setlanguagelevel
+
+/BitmapFontInit mark
+
+/.makeglyph32 systemdict /.makeglyph32 get
+systemdict /.makeglyph32 .undef
+
+/addglyph { % ([wx wy llx lly urx ury] |
+ % [w0x w0y llx lly urx ury w1x w1y vx vy])
+ % <bitmap> <cid> <type32font> addglyph -
+ 1 index dup 2 index .removeglyphs
+ 22 string .makeglyph32
+ % Stack: metrics bitmap cid font metstr
+ 3 index () ne {
+ % Use G4 encoding to compress the bitmap.
+ % Define a string large enough to hold the metrics,
+ % an uncompressed bitmap (worst case = 5x expansion),
+ % and the 2 RTC codes (3 bytes).
+ dup length 4 index length 5 mul add 10 add string
+ % Stack: metrics bitmap cid font metstr buffer
+ dup 0 3 index putinterval
+ dup 2 index length 1 index length 1 index sub getinterval
+ % Stack: metrics bitmap cid font metstr buffer bitbuf
+ mark /Columns 8 index dup 4 get exch 2 get sub
+ /Rows 10 index dup 5 get exch 3 get sub
+ /K -1 /EndOfBlock true /BlackIs1 true
+ .dicttomark /CCITTFaxEncode filter
+ % Stack: metrics bitmap cid font metstr buffer filter
+ dup 6 index writestring closefile
+ % Find the end of the data by scanning backwards for the RTC.
+ % There are 2 RTCs x 12 bits = 3 bytes to remove.
+ {
+ dup dup length 1 sub get 0 ne { exit } if
+ 0 1 index length 1 sub getinterval
+ } loop
+ 0 1 index length 3 sub getinterval
+ exch pop % metstr
+ } if
+ 1 index /CharStrings get 3 index 3 -1 roll put
+ pop pop pop pop
+} obind
+
+/removeall { % <type32font> removeall -
+ 0 65535 2 index removeglyphs pop
+} obind
+
+/.removeglyphs systemdict /.removeglyphs get
+systemdict /.removeglyphs .undef
+
+/removeglyphs { % <cid_min> <cid_max> <type32font> .removeglyphs -
+ 3 copy .removeglyphs
+ dup /CharStrings get dup {
+ % Stack: cidmin cidmax font CharStrings cid bitmap
+ pop dup 5 index ge { dup 4 index le { 2 copy undef } if } if pop
+ } forall pop pop pop pop
+} obind
+
+.dicttomark /ProcSet defineresource pop
+
+/.cidfonttypes where { pop } { /.cidfonttypes 6 dict def } ifelse
+.cidfonttypes begin
+
+4 % CIDFontType 4 = FontType 32
+{ dup /FontType 32 put
+ dup /CharStrings 20 dict put
+ 1 index exch .buildfont32 exch pop
+} bind def
+
+end % .cidfonttypes
+
+% Define the BuildGlyph procedure.
+% Since Type 32 fonts are indexed by CID, there is no BuildChar procedure.
+% The name %Type32BuildGlyph is known to the interpreter.
+(%Type32BuildGlyph) cvn { % <font> <cid> %Type32BuildGlyph -
+ 1 index /CharStrings get
+ % Stack: font cid CharStrings
+ dup 2 index .knownget
+ { exch pop } { 0 get } ifelse
+ % Stack: font cid cstr
+ dup //.getmetrics32 % use // because of .undef below
+ dup 14 gt {
+ 8 index 8 index 13 3 roll setcachedevice2
+ } {
+ 4 index 4 index 9 3 roll setcachedevice
+ } ifelse
+ % Stack: font cid cstr w h nmetrics llx lly
+ 6 -1 roll 4 -1 roll 1 index length 1 index sub getinterval
+ % Stack: font cid w h llx lly bitstr
+ dup () eq {
+ pop pop pop
+ } {
+ mark /Columns 6 index /Rows 7 index /K -1 /EndOfBlock false /BlackIs1 true
+ .dicttomark /CCITTFaxDecode filter 4 index 4 index true
+ % Stack: font cid w h llx lly filter w h true
+ [ 1 0 0 1 11 -2 roll exch neg exch neg ] 5 -1 roll imagemask
+ } ifelse
+ pop pop pop pop
+} bind def
+
+systemdict /.getmetrics32 .undef
+
+buildfontdict 32 /.buildfont32 cvx put
+
+32 dup /FontType defineresource pop
+
+.setlanguagelevel