Current File : //usr/share/ghostscript/Resource/Init/gs_fapi.ps
% Copyright (C) 2001-2019 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.
%
% Redefine Font and CIDFont categories with FAPI-handeled fonts.
systemdict /.FAPIavailable known { //null .FAPIavailable } { //false } ifelse not {
(%END FAPI) .skipeof
} if
languagelevel 2 .setlanguagelevel
%====================================================================
% Redefine Font category with FAPIfontmap and CIDFont with FAPIfontmap :
15 dict begin % a temporary dictionary for local binding.
/EmbedFontObjectsQuery mark
/.EmbedFontObjects 0
.dicttomark def
/is_device_compatible_to_FAPI % - is_device_compatible_to_FAPI <bool>
{
//true % removed a bogus check against EmbedFontObjectsQuery
%
% Temporary switch to allow override of FAPI and fallback to GS font rendering
% to be removed at some date after FT integration is completed and released.
%
/DisableFAPI where {
/DisableFAPI get not and
}if
% The code above assumes that only the requested parameter is rendered.
% The commented-out code below may be useful for general case.
% Keeping it for a while.
% counttomark 2 idiv {
% exch /.EmbedFontObjects eq {
% counttomark 1 add 1 roll cleartomark
% 0 eq exit
% } if
% } repeat
% dup mark eq {
% pop //true
% } if
} bind def
%----------------------------- Process FAPIconfig -----------------------
% The HookDiskFonts and HookEmbeddedFonts take a simple array setting normally.
% but if two or more FAPI plugins are built in, they can take a dictionary,
% whose contents are the FAPI subtype string of a given plugin as the key,
% and an array containing the (sub)set of font types the plugin should handle.
% Any repetition of font types is ill advised since the resulting bevhaviour
% will depend on the order entries are stored in the dictionary, which is
% indeterminate. An attempt to use request a font scaler/renderer which cannot
% deal with a given font type will result in the FAPI resorting to it's default
% search for a viable plugin.
%
% As an example, you might want UFST to handle Truetype/Type 42 fonts, and
% Freetype to handle others, thus:
% /HookDiskFonts << /UFST [11 42] /FreeType [1 2 9] >>
% /HookEmbeddedFonts << /UFST [11 42] /FreeType [1 2 9] >>
/Config
<<
% If we've got a FAPIConfig, run it now.
systemdict /FAPIconfig known
{
/FAPIconfig .systemvar .runlibfile
} if
% Now setup defaults for any entries not set above - these defaults are correct
% for FAPI/Freeetype
currentdict /FontPath known not { /FontPath (/Fonts)} if % A default directory for FAPI-handled font files
% path in FAPIfontmap.
currentdict /CIDFontPath known not { /CIDFontPath (/CIDFonts)} if % A default directory for FAPI-handled CIDfont % files path in FAPIcidfmap.
currentdict /HookDiskFonts known not { /HookDiskFonts [1 2 9 11 42] } if % FontType values for disk PS fonts to be
% redirected to FAPI.
currentdict /HookEmbeddedFonts known not { /HookEmbeddedFonts [1 2 9 11 42] } if % FontType values for embedded PS fonts to be
% redirected to FAPI.
/ServerOptions 2 dict
>> def
systemdict /.FAPIconfig //Config put
/UFST .FAPIavailable
{
systemdict /UFST_SSdir known
{
/UFSTFONTDIR UFST_SSdir def
systemdict /UFST_SSdir undef
}
{
/UFSTROMFONTDIR (%rom%fontdata/) def
UFSTROMFONTDIR (mtfonts/pcl45/mt3/plug__xi.fco)
concatstrings status
{
pop pop pop pop
/UFSTFONTDIR UFSTROMFONTDIR def
}
{
/UFSTFONTDIR () def
} ifelse
} ifelse
systemdict /UFST_PlugIn known not
{
systemdict /UFST_PlugIn UFSTFONTDIR (mtfonts/pcl45/mt3/plug__xi.fco) concatstrings put
} if
systemdict /FCOfontfile known not
{
systemdict /FCOfontfile UFSTFONTDIR (mtfonts/pclps2/mt3/pclp2_xj.fco) concatstrings put
} if
systemdict /FCOfontfile2 known not
{
systemdict /FCOfontfile2 UFSTFONTDIR (mtfonts/pcl45/mt3/wd____xh.fco) concatstrings put
} if
systemdict /FAPIfontmap known not
{
systemdict /FAPIfontmap (FCOfontmap-PCLPS2) put
} if
} if
()
systemdict /UFST_SSdir .knownget {
(UFST_SSdir=) exch concatstrings concatstrings
} if
systemdict /UFST_PlugIn .knownget {
1 index length 0 ne {
exch .filenamelistseparator concatstrings exch
} if
(UFST_PlugIn=) exch concatstrings concatstrings
} if
dup length 0 ne {
//Config /ServerOptions get exch /UFST exch put
} {
pop
} ifelse
%------------------Copy the FontEmulationProcs here : -------------------
/FontEmulationProcs /ProcSet findresource {
def
} forall
currentdict /super.complete_instance currentdict /complete_instance get put
%-----------FAPI-specific methods for category redefinition : -----------
/RefinePath % <FontDict> /key RefinePath <FontDict>
{ exch begin
//Config exch get
/Path exch
Path //false .file_name_combine not {
exch
(Can't combine paths ) print print ( and ) print =
/RefinePath cvx /configurationerror signalerror
} if
def
currentdict end
} bind def
/complete_instance % <font_name> <FontDict> <Options> complete_FAPI_Font <font_name> <FontDict>
{ //super.complete_instance exec
dup /CIDFontName known { /CIDFontPath } { /FontPath } ifelse //RefinePath exec
} bind def
/IsMyRecord % <raw_record> -> <raw_record> bool
{ dup type /dicttype eq { dup /FAPI known } { //false } ifelse
} bind def
/IsActive % <record> IsActive <bool>
{ pop //is_device_compatible_to_FAPI exec
} bind def
/FontRecordVirtualMethods //RecordVirtualMethodsStub dup length 2 add dict copy begin
/IsActive //IsActive def
/MakeInstance % <Name> <record> MakeInstance <Name> <Instance> <size>
{ currentglobal 3 1 roll //true setglobal
//FontOptions //complete_instance exec
2 copy //GetSize exec
4 3 roll setglobal
} bind def
currentdict end def
/CIDFontRecordVirtualMethods //RecordVirtualMethodsStub dup length 3 add dict copy begin
/GetCSI //TranslateCSI def
/IsActive //IsActive def
/MakeInstance % <Name> <record> MakeInstance <Name> <Instance> <size>
{ currentglobal 3 1 roll //true setglobal
//CIDFontOptions //complete_instance exec
2 copy //GetSize exec
4 3 roll setglobal
} bind def
currentdict end def
/ReadFCOfontmap: % <path> ReadFCOfontmap: name dict ...
{
/fontfile exch def
{
currentfile =string readline not {
pop exit
} if
dup length 0 ne {
0 () /SubFileDecode filter
dup token not {
% A comment line
closefile
} {
dup /EndFCOfontmap cvx eq {
pop closefile exit
} if
exch dup token not {
/ReadFCOfontmap: cvx /rangecheck signalerror
} if
exch dup token not {
/StandardEncoding
} {
dup type /nametype ne {
/ReadFCOfontmap: cvx /rangecheck signalerror
} if
} ifelse
findencoding
exch dup token not {
//null
} {
dup type /nametype ne {
/ReadFCOfontmap: cvx /rangecheck signalerror
} if
/Decoding findresource
} ifelse
exch closefile % index name enc dec|null
4 3 roll % name enc dec|null index
<< /Path fontfile
/FontType 1
/FAPI /UFST
/SubfontId counttomark 2 add -1 roll
/Decoding counttomark 2 add -1 roll
dup //null eq {
pop pop
} if
/Encoding counttomark 2 add -1 roll
/FontInfo
<<
/UnderlineThickness 50
/Weight (Regular)
/version (0.00)
/ItalicAngle 0
/UnderlinePosition -100
/FamilyName ()
/Notice ()
/FullName ()
>>
% although we pretend this is a Type 1, the FAPI interface currently
% needs an identity FontMatrix
/FontMatrix [0.001 0.0 0.0 0.001 0.0 0.0]
% we need a fake CharStrings dictionary to placate certain jobs
% which try to look inside it
/CharStrings
<<
/.notdef ( )
StandardEncoding { ( ) } forall
>>
% FontBBox will get replaced with valid numbers pulled from the rendering engine
/FontBBox [-128 -128 1024 1024] cvx
>> % dup { exch == = } forall
} ifelse
} {
pop
} ifelse
} loop
currentdict /fontfile undef
} bind def
%----------------------------------The Redefintion---------------------
/MappedCategoryRedefiner /ProcSet findresource /Redefine get /Redefine exch def
% Redefine the /Font category :
4 dict begin
/CategoryName /Font def
/MapFileName systemdict /FAPIfontmap known {/FAPIfontmap .systemvar} {(FAPIfontmap)} ifelse def
/VerifyMap { pop } bind def
/PreprocessRecord % <map> <Name> <raw_record> PreprocessRecord <map> <Name> <record> <bool>
{ //IsMyRecord exec dup {
pop dup /RecordVirtualMethods //FontRecordVirtualMethods put
//true
} if
} bind def
currentdict end Redefine
% Redefine the /CIDFont category :
4 dict begin
/CategoryName /CIDFont def
/MapFileName systemdict /FAPIcidfmap known {/FAPIcidfmap .systemvar} {(FAPIcidfmap)} ifelse def
/VerifyMap { pop } bind def
/PreprocessRecord % <map> <Name> <raw_record> PreprocessRecord <map> <Name> <record> <bool>
{ //IsMyRecord exec dup {
pop dup /RecordVirtualMethods //CIDFontRecordVirtualMethods put
//true
} if
} bind def
currentdict end Redefine
%==================== A hook for buildfont* operators ====================
% The procedure .FAPIhook redirects PS fonts to FAPI on necessity.
% This depends on the following conditions :
%
% 1. If font dictionary has /FAPI entry, it is a font listed in FAPIconfig.FontPath,
% and must be build with .FAPIrebuildfont, or a copy of a font, which was
% built with .FAPIrebuildfont .
%
% 2. If the font dictionary has /PathLoad entry, and has no /FAPI entry,
% it is an installed PS font, which is described in lib/fontmap or
% in GS_FONTPATH. .loadfont inserts /PathLoad entry for this case
% (see gs_fonts.ps).
%
% Installed fonts are being loaded with GS font loader,
% the they are passed to FAPI is same way as embedded fonts are.
% We do so because UFST cannot read fonts, which don't
% follow Type 1/42 file format strongly.
%
% 3. Executing .loadfont, we place /FAPI_hook_disable in the 0th
% element of some procedure on the execution stack - see gs_fonts.ps .
% If FAPI_hook finds /FAPI_hook_disable in there,
% it knows that it is called for a disk font during
% its internal definefont.
%
% 4. If font dictionary has no /FAPI entry, and has no /Path entry,
% and if we are not in .loadfont context, it is an embedded font.
%
% 5. Two entries to be defined in lib/FAPIconfig to control the hooking of PS fonts :
% HookDiskFonts and HookEmbeddedFonts .
% They specify arrays of font types (integers) to be redirected with FAPI.
% HookDiskFonts controls disk PS fonts (which fall into (2) and (3) ).
% HookEmbeddedFonts controls fonts being embedded into documents.
%
% 7. We apply the operator .passtoFAPI for checking whether FAPI can handle a font.
% If so, we insert /FAPI entry into the font dictionary and convert it
% with .FAPIrebuildfont . Otherwise the font is handled with the native GS font renderer.
/FAPI_hook_debug % <proc> FAPI_hook_debug -
FAPIDEBUG { {exec} } { {pop} } ifelse
bind def
/FAPI_hook_warn % <proc> FAPI_hook_debug -
QUIET { {pop} } { {exec} } ifelse
bind def
/FAPI_is_hook_disabled % - FAPI_is_hook_disabled <bool>
{ % checks whether execution stack contains packedarray started with /FAPI_hook_disable .
/FAPI_hook_disable /MappedCategoryRedefiner /ProcSet findresource /execstack_lookup get exec
//null ne
} bind def
/FAPIhook_aux % <string|name> <font_dict> .FAPIhook <string|name> <font>
{ % name <<font>>
{ (\nFAPIhook ) print 1 index = flush } //FAPI_hook_debug exec
dup /FAPI known {
{ //PrintFontRef exec ( is mapped to FAPI=) print dup /FAPI get = flush } //FAPI_hook_debug exec
//true //.FAPIrebuildfont //ChooseDecoding exec
} {
dup /PathLoad known dup {
{ (PathLoad known for the font ) print //PrintFontRef exec (.\n) print flush} //FAPI_hook_debug exec
} {
pop //FAPI_is_hook_disabled exec dup
{ pop
{ (FAPIhook is in .loadfont context for the font ) print //PrintFontRef exec (.\n) print flush } //FAPI_hook_debug exec
//true
} if
} ifelse
{ /HookDiskFonts } { /HookEmbeddedFonts } ifelse
//Config exch get % name <<font>> [types]
dup type /dicttype eq
{
//false exch
{
3 index //GetFontType exec //FindInArray exec
{
2 index exch /FAPIPlugInReq exch put
pop //true exit
}
{ pop } ifelse
} forall
}
{
1 index //GetFontType exec //FindInArray exec % name <<font>> bHook
} ifelse
{ { (Trying to render the font ) print //PrintFontRef exec ( with FAPI...\n) print flush } //FAPI_hook_debug exec
//.FAPIpassfont {
{ //PrintFontRef exec ( is being rendered with FAPI=) print dup /FAPI get = flush } //FAPI_hook_debug exec
//false //.FAPIrebuildfont //ChooseDecoding exec
} {
{ (Can't render ) print //PrintFontRef exec ( with FAPI, will do with native GS renderer.\n) print flush } //FAPI_hook_warn exec
} ifelse
} {
{ (The font ) print //PrintFontRef exec ( doesn't need to render with FAPI.\n) print flush } //FAPI_hook_debug exec
} ifelse
% Remove the plugin request from the font dictionary
dup /FAPIPlugInReq undef
} ifelse
} bind def
/FAPIhook % <string|name> <font_dict> .FAPIhook <string|name> <font>
{ //is_device_compatible_to_FAPI exec
{ //FAPIhook_aux exec
} {
{ (FAPIhook is disabled for the current device.\n) print flush } //FAPI_hook_debug exec
} ifelse
} bind def
% ------------------ Redefine .buildfont* with FAPI : -----------------------
/.buildfont1
{ //.buildfont1 exec exec //FAPIhook exec
} bind % 'odef' is below.
/.buildfont2
{ //.buildfont2 exec //FAPIhook exec
} bind % 'odef' is below.
/.buildfont42
{ //.buildfont42 exec //FAPIhook exec
} bind % 'odef' is below.
/.buildfont9
{ //.buildfont9 exec //FAPIhook exec
} bind % 'odef' is below.
/.buildfont10
{ //.buildfont10 exec //FAPIhook exec
} bind % 'odef' is below.
/.buildfont11
{ //.buildfont11 exec //FAPIhook exec
} bind % 'odef' is below.
end % the temporary dictionary for local binding.
odef odef odef odef odef odef
% Undef these, not needed outside this file
[ /.FAPIavailable /.FAPIpassfont /.FAPIrebuildfont ] {systemdict exch .forceundef} forall
.setlanguagelevel
%END FAPI
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