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Diffstat (limited to 'Master/xemtex/gslib/font2pcl.ps')
-rw-r--r-- | Master/xemtex/gslib/font2pcl.ps | 604 |
1 files changed, 604 insertions, 0 deletions
diff --git a/Master/xemtex/gslib/font2pcl.ps b/Master/xemtex/gslib/font2pcl.ps new file mode 100644 index 00000000000..1c777b1bdac --- /dev/null +++ b/Master/xemtex/gslib/font2pcl.ps @@ -0,0 +1,604 @@ +% Copyright (C) 1993, 1994, 1995, 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: font2pcl.ps,v 1.2.6.2.2.1 2003/04/12 14:02:38 giles Exp $ +% font2pcl.ps +% Write out a font as a PCL bitmap font. + +/pcldict 60 dict def + +% Write out the current font as a PCL bitmap font. +% The current transformation matrix defines the font size and orientation. + +/WriteResolution? false def % true=use "resolution bound font" format, + % false=use older format + +/LJ4 false def % true=use LJ4 Typeface code + % false=use LJIIP/IID/IIIx Typeface code + +pcldict begin % internal procedures + +/findstring % <string> <substring> findstring <bool> + { search { pop pop pop true } { pop false } ifelse + } def + + % Determine which set of keywords is present in a string. + % The last keyword set must be empty. + +/keysearch % <string> <array of arrays of keywords> keysearch <index> + { 0 1 2 index length 1 sub + { 2 copy get true exch + { % Stack: <string> <a.a.k.> <index> <bool> <keyword> + 4 index exch findstring and + } + forall + { 0 exch getinterval exit + } + if pop + } + for + exch pop length % invalid index if missing + } def + + % Determine the device height of a string in quarter-dots. + +/charheight % <string> charheight <int> + { gsave newpath 0 0 moveto false charpath + pathbbox exch pop exch sub exch pop 0 exch grestore + dtransform add abs 4 mul cvi + } def + + % Compute an integer version of the transformed FontBBox. + +/inflate % <num> inflate <num> + { dup 0 gt { ceiling } { floor } ifelse + } def +/ixbbox % - ixbbox <llx> <lly> <urx> <ury> + { /FontBBox load aload pop % might be executable or literal + 4 2 roll transform exch truncate cvi exch truncate cvi + 4 2 roll transform exch inflate cvi exch inflate cvi + } def + + % Determine the original font of a possibly transformed font. + % Since some badly behaved PostScript files construct transformed + % fonts "by hand", we can't just rely on the OrigFont pointers. + % Instead, if a font with the given name exists, and if its + % entries for FontType and UniqueID match those of the font we + % obtain by following the OrigFont chain, we use that font. + +/origfont + { { dup /OrigFont known not { exit } if /OrigFont get } loop + FontDirectory 1 index /FontName get .knownget + { % Stack: origfont namedfont + 1 index /FontType get 1 index /FontType get eq + { 1 index /UniqueID .knownget + { 1 index /UniqueID .knownget + { eq { exch } if } + { pop } + ifelse + } + if + } + if pop + } + if + } def + + + % Determine the bounding box of the current device's image. + % Free variables: row, zerow. + +/devbbox % <rw> <rh> devbbox <ymin> <ymax1> <xmin> <xmax1> + { % Find top and bottom whitespace. + dup + { dup 0 eq { exit } if 1 sub + dup currentdevice exch row copyscanlines + zerow ne { 1 add exit } if + } + loop % ymax1 + 0 + { 2 copy eq { exit } if + dup currentdevice exch row copyscanlines + zerow ne { exit } if + 1 add + } + loop % ymin + exch + % Find left and right whitespace. + 3 index 0 + % Stack: rw rh ymin ymax1 xmin xmax1 + 3 index 1 4 index 1 sub + { currentdevice exch row copyscanlines .findzeros + exch 4 1 roll .max 3 1 roll .min exch + } + for % xmin xmax1 + % Special check: xmin > xmax1 if height = 0 + 2 copy gt { exch pop dup } if + 6 -2 roll pop pop + + } def + + % Write values on outfile. + + /w1 { 255 and outfile exch write } def + /w2 { dup -8 bitshift w1 w1 } def + /wbyte % <byte> <label> wbyte + { VDEBUG { print ( =byte= ) print dup == flush } { pop } ifelse w1 + } def + /wword % <word16> <label> wword + { VDEBUG { print ( =word= ) print dup == flush } { pop } ifelse w2 + } def + /wdword % <word32> <label> wdword + { VDEBUG { print ( =dword= ) print dup == flush } { pop } ifelse + dup -16 bitshift w2 w2 + } def + +/style.posture.keys + [ { (Italic) } { (Oblique) } + { } + ] def +/style.posture.values <010100> def + +/style.appearance.width.keys + [ { (Ultra) (Compressed) } + { (Extra) (Compressed) } + { (Extra) (Condensed) } + { (Extra) (Extended) } + { (Extra) (Expanded) } + { (Compressed) } + { (Condensed) } + { (Extended) } + { (Expanded) } + { } + ] def +/style.appearance.width.values <04030207070201060600> def + +/width.type.keys + [ { (Ultra) (Compressed) } + { (Extra) (Compressed) } + { (Extra) (Condensed) } + { (Extra) (Expanded) } + { (Compressed) } + { (Condensed) } + { (Expanded) } + { } + ] def +/width.type.values <fbfcfd03fdfe0200> def + +/stroke.weight.keys + [ { (Ultra) (Thin) } + { (Ultra) (Black) } + { (Extra) (Thin) } + { (Extra) (Light) } + { (Extra) (Bold) } + { (Extra) (Black) } + { (Demi) (Light) } + { (Demi) (Bold) } + { (Semi) (Light) } + { (Semi) (Bold) } + { (Thin) } + { (Light) } + { (Bold) } + { (Black) } + { } + ] def +/stroke.weight.values <f907fafc0406fe02ff01fbfd030500> def + +/vendor.keys + [ { (Agfa) } + { (Bitstream) } + { (Linotype) } + { (Monotype) } + { (Adobe) } + { } + ] def +/vendor.default.index 4 def % might as well be Adobe +/old.vendor.values <020406080a00> def +/new.vendor.values <010203040500> def +/vendor.initials (CBLMA\000) def + +currentdict readonly end pop % pcldict + + +% Convert and write a PCL font for the current font and transformation. + +% Write the font header. We split this off only to avoid overflowing +% the limit on the maximum size of a procedure. +% Free variables: outfile uury u0y rw rh orientation uh ully +/writefontheader + { outfile (\033\)s) writestring + outfile 64 WriteResolution? { 4 add } if + Copyright length add write==only + outfile (W) writestring + WriteResolution? { 20 68 } { 0 64 } ifelse + (Font Descriptor Size) wword + (Header Format) wbyte + 1 (Font Type) wbyte + FullName style.posture.keys keysearch style.posture.values exch get + FullName style.appearance.width.keys keysearch + style.appearance.width.values exch get 4 mul add + PaintType 2 eq { 32 add } if + /style exch def + style -8 bitshift (Style MSB) wbyte + 0 (Reserved) wbyte + /baseline uury 1 sub u0y sub def + baseline (Baseline Position) wword + rw (Cell Width) wword + rh (Cell Height) wword + orientation (Orientation) wbyte + FontInfo /isFixedPitch .knownget not { false } if + { 0 } { 1 } ifelse (Spacing) wbyte + % Use loop/exit to fake a multiple-exit block. + { Encoding StandardEncoding eq { 10 (J) exit } if + Encoding ISOLatin1Encoding eq { 11 (J) exit } if + Encoding SymbolEncoding eq { 19 (M) exit } if + Encoding DingbatsEncoding eq { 10 (L) exit } if +% (Warning: unknown Encoding, using ISOLatin1.\n) print flush + 11 (J) exit + } + loop + 0 get 64 sub exch 32 mul add (Symbol Set) wword + ( ) stringwidth pop 0 dtransform add abs 4 mul + /pitch exch def + pitch cvi (Pitch) wword + uh 4 mul (Height) wword % Height + (x) charheight (x-Height) wword + FullName width.type.keys keysearch + width.type.values exch get (Width Type) wbyte + style 255 and (Style LSB) wbyte + FullName stroke.weight.keys keysearch + stroke.weight.values exch get (Stroke Weight) wbyte + FullName vendor.keys keysearch + dup vendor.initials exch get 0 eq + { % No vendor in FullName, try Notice + pop Copyright vendor.keys keysearch + dup vendor.initials exch get 0 eq { pop vendor.default.index } if + } + if + /vendor.index exch def + 0 (Typeface LSB) wbyte % punt + 0 (Typeface MSB) wbyte % punt + 0 (Serif Style) wbyte % punt + 2 (Quality) wbyte + 0 (Placement) wbyte + gsave FontMatrix concat rot neg rotate + /ulwidth + FontInfo /UnderlineThickness .knownget + { 0 exch dtransform exch pop abs } + { resolution 100 div } + ifelse def + FontInfo /UnderlinePosition .knownget + { 0 exch transform exch pop negY ulwidth 2 div add } + { ully ulwidth add } + ifelse u0y sub + round cvi 1 .max 255 .min (Underline Position) wbyte + ulwidth round cvi 1 .max 255 .min (Underline Thickness) wbyte + grestore + uh 1.2 mul 4 mul cvi (Text Height) wword + (average lowercase character) dup stringwidth + pop 0 dtransform add abs + exch length div 4 mul cvi (Text Width) wword + 0 + { dup Encoding exch get /.notdef ne { exit } if + 1 add + } + loop (First Code) wword + 255 + { dup Encoding exch get /.notdef ne { exit } if + 1 sub + } + loop (Last Code) wword + pitch dup cvi sub 256 mul cvi (Pitch Extended) wbyte + 0 (Height Extended) wbyte + 0 (Cap Height) wword % (default) + currentfont /UniqueID known { UniqueID } { 0 } ifelse + 16#c1000000 add (Font Number (Adobe UniqueID)) wdword + FontName length 16 .max string + dup FontName exch cvs pop + outfile exch 0 16 getinterval writestring % Font Name + WriteResolution? + { resolution dup (X Resolution) wword (Y Resolution) wword + } + if + outfile Copyright writestring % Copyright + } def + +/writePCL % <fontfile> <resolution> writePCL - + { + save + currentfont begin + pcldict begin + 80 dict begin % allow for recursion + /saved exch def + /resolution exch def + /outfile exch def + matrix currentmatrix dup 4 0 put dup 5 0 put setmatrix + + % Supply some default values so we don't have to check later. + + currentfont /FontInfo known not { /FontInfo 1 dict def } if + currentfont /FontName known not { /FontName () def } if + /Copyright FontInfo /Notice .knownget not { () } if def + /FullName + FontInfo /FullName .knownget not + { FontName dup length string cvs } + if def + + % Determine the original font, and its relationship to this one. + + /OrigFont currentfont origfont def + /OrigMatrix OrigFont /FontMatrix get def + /OrigMatrixInverse OrigMatrix matrix invertmatrix def + /ScaleMatrix matrix currentfont OrigFont ne + { FontMatrix exch OrigMatrixInverse exch concatmatrix + } if + def + /CurrentScaleMatrix + matrix currentmatrix + matrix defaultmatrix + dup 0 get 1 index 3 get mul 0 lt + 1 index dup 1 get exch 2 get mul 0 gt or + /flipY exch def + dup invertmatrix + dup concatmatrix + def + /negY flipY { {neg} } { {} } ifelse def + + % Print debugging information. + + /CDEBUG where { pop } { /CDEBUG false def } ifelse + /VDEBUG where { pop } { /VDEBUG false def } ifelse + CDEBUG { /VDEBUG true def } if + DEBUG + { (currentmatrix: ) print matrix currentmatrix == + (defaultmatrix: ) print matrix defaultmatrix == + (flipY: ) print flipY == + (scaling matrix: ) print CurrentScaleMatrix == + (FontMatrix: ) print FontMatrix == + (FontBBox: ) print /FontBBox load == + currentfont OrigFont ne + { OrigFont /FontName .knownget { (orig FontName: ) print == } if + (orig FontMatrix: ) print OrigMatrix == + } if + currentfont /ScaleMatrix .knownget { (ScaleMatrix: ) print == } if + gsave + FontMatrix concat + (combined matrix: ) print matrix currentmatrix == + grestore + flush + } if + + % Determine the orientation. + + ScaleMatrix matrix currentmatrix dup concatmatrix + 0 1 3 + { 1 index 1 get 0 eq 2 index 2 get 0 eq and 2 index 0 get 0 gt and + { exit } if + pop -90 matrix rotate exch dup concatmatrix + } + for + dup type /integertype ne + { (Only rotations by multiples of 90 degrees are supported:\n) print + == flush + saved end end end restore stop + } + if + /orientation exch def + /rot orientation 90 mul def + DEBUG { (orientation: ) print orientation == flush } if + + dup dup 0 get exch 3 get negY sub abs 0.5 ge + { (Only identical scaling in X and Y is supported:\n) print + exch flipY 3 array astore == + currentdevice .devicename == + matrix defaultmatrix == flush + saved end end end restore stop + } + if pop + + % Determine the font metrics, in the PCL character coordinate system, + % which has +Y going towards the top of the page. + + gsave + FontMatrix concat + 0 0 transform + negY round cvi /r0y exch def + round cvi /r0x exch def + ixbbox + negY /rury exch def /rurx exch def + negY /rlly exch def /rllx exch def + /rminx rllx rurx .min def + /rminy rlly negY rury negY .min def + /rw rurx rllx sub abs def + /rh rury rlly sub abs def + gsave rot neg rotate + 0 0 transform + negY round cvi /u0y exch def + round cvi /u0x exch def + ixbbox + negY /uury exch def /uurx exch def + negY /ully exch def /ullx exch def + /uw uurx ullx sub def + /uh uury ully sub def + grestore + DEBUG + { (rmatrix: ) print matrix currentmatrix == + (rFontBBox: ) print [rllx rlly rurx rury] == + (uFontBBox: ) print [ullx ully uurx uury] == + flush + } if + grestore + + % Disable the character cache, to avoid excessive allocation + % and memory sandbars. + + mark cachestatus /upper exch def + cleartomark 0 setcachelimit + + % Write the font header. + + writefontheader + + % Establish an image device for rasterizing characters. + + matrix currentmatrix + dup 4 rminx neg put + dup 5 rminy neg put + % Round the width up to a multiple of 8 + % so we don't get garbage bits in the last byte of each row. + rw 7 add -8 and rh <ff 00> makeimagedevice + /cdevice exch def + nulldevice % prevent page device switching + cdevice setdevice + + % Rasterize each character in turn. + + /raster rw 7 add 8 idiv def + /row raster string def + /zerow row length string def + 0 1 Encoding length 1 sub + { /cindex exch def + Encoding cindex get /.notdef ne + { VDEBUG { Encoding cindex get == flush } if + erasepage initgraphics + 0 0 moveto currentpoint transform add + ( ) dup 0 cindex put show + currentpoint transform add exch sub round cvi + /cwidth exch abs def + rw rh devbbox + VDEBUG + { (image bbox: ) print 4 copy 4 2 roll 4 array astore == flush + } if + % Save the device bounding box. + % Note that this is in current device coordinates, + % not PCL (right-handed) coordinates. + /bqx exch def /bpx exch def /bqy exch def /bpy exch def + % Re-render with the character justified to (0,0). + % This may be either the lower left or the upper left corner. + bpx neg bpy neg idtransform moveto + erasepage + VDEBUG { (show point: ) print [ currentpoint transform ] == flush } if + ( ) dup 0 cindex put show + % Find the bounding box. Note that xmin and ymin are now 0, + % xmax1 = xw, and ymax1 = yh. + rw rh devbbox + /xw exch def + % xmin or ymin can be non-zero only if the character is blank. + xw 0 eq + { pop } + { dup 0 ne { (Non-zero xmin! ) print = } { pop } ifelse } + ifelse + /yh exch def + yh 0 eq + { pop } + { dup 0 ne { (Non-zero ymin! ) print = } { pop } ifelse } + ifelse + + /xbw xw 7 add 8 idiv def + /xright raster 8 mul xw sub def + % Write the Character Code command. + outfile (\033*c) writestring + outfile cindex write==only + outfile (E) writestring + % Write the Character Definition command. + outfile (\033\(s) writestring + yh xbw mul 16 add + outfile exch write=only + % Record the character position for the .PCM file. + /cfpos outfile fileposition 1 add def + outfile (W\004\000\016\001) writestring + orientation (Orientation) wbyte 0 (Reserved) wbyte + rminx bpx add r0x sub (Left Offset) wword + flipY { rminy bpy add neg } { rminy bqy add } ifelse r0y sub + (Top Offset) wword + xw (Character Width) wword + yh (Character Height) wword + cwidth orientation 2 ge { neg } if 4 mul (Delta X) wword + % Write the character data. + flipY { 0 1 yh 1 sub } { yh 1 sub -1 0 } ifelse + { cdevice exch row copyscanlines + 0 xbw getinterval + CDEBUG + { dup + { 8 + { dup 128 ge { (+) } { (.) } ifelse print + 127 and 1 bitshift + } + repeat pop + } + forall (\n) print + } + if + outfile exch writestring + } + for + } + { /bpx 0 def /bpy 0 def /bqx 0 def /bqy 0 def + /cwidth 0 def + /cfpos 0 def + } + ifelse + + } + for + + % Wrap up. + + upper setcachelimit + outfile closefile + + nulldevice % prevent page device switching + saved end end end restore + + } def + +% Provide definitions for testing with older or non-custom interpreters. + +/.findzeros where { pop (%END) .skipeof } if +/.findzeros + { userdict begin /zs exch def /zl zs length def + 0 { dup zl ge { exit } if dup zs exch get 0 ne { exit } if 1 add } loop + zl { dup 0 eq { exit } if dup 1 sub zs exch get 0 ne { exit } if 1 sub } loop + exch 3 bitshift exch 3 bitshift + 2 copy lt + { exch zs 1 index -3 bitshift get + { dup 16#80 and 0 ne { exit } if exch 1 add exch 1 bitshift } loop pop + exch zs 1 index -3 bitshift 1 sub get + { dup 1 and 0 ne { exit } if exch 1 sub exch -1 bitshift } loop pop + } + if end + } bind def +%END + +/write=only where { pop (%END) .skipeof } if +/w=s 128 string def +/write=only + { w=s cvs writestring + } bind def +%END + +%**************** Test +/PCLTEST where { + pop + /DEBUG true def + /CDEBUG true def + /VDEBUG true def + /Times-Roman findfont 10 scalefont setfont + (t.pcf) (w) file + 300 72 div dup scale + 300 writePCL + flush quit +} if |