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%D \module
%D [ file=s-fonts-engines, % was: s-fnt-22
%D version=2017.06.21,
%D title=\CONTEXT\ Style File,
%D subtitle=Compare engines and such,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D This module is just for me when I wanted to check some husayni (by Idris)
%D regression. Interesting is that fina should be disabled for hb (otherwise
%D garbage) and that some substitutions are ignored in hb (1.1.3), so we can
%D only compare some examples. Don't expect this style to be stable as I
%D might change default features.
\startmodule[fonts-engines]
\usemodule[fonts-steps]
\usemodule[fonts-plugins]
\enabletrackers[fonts.reorderlookups]
\startsetups otftracker-extra-context
\definedfont[\getvariable{otftracker}{font}*\getvariable{otftracker}{features} at \getvariable{otftracker}{size}]\relax
\setotfcompositiondirection{\getvariable{otftracker}{direction}}\relax
\getvariable{otftracker}{sample}\relax
\stopsetups
\startsetups otftracker-extra-context-reordered
\definedfont[\getvariable{otftracker}{font}*otftracker-context-reordered at \getvariable{otftracker}{size}]\relax
\setotfcompositiondirection{\getvariable{otftracker}{direction}}\relax
\getvariable{otftracker}{sample}\relax
\stopsetups
\startsetups otftracker-extra-harfbuzz
\definedfont[\getvariable{otftracker}{font}*otftracker-harfbuzz-native at \getvariable{otftracker}{size}]\relax
\setotfcompositiondirection{\getvariable{otftracker}{direction}}\relax
\getvariable{otftracker}{sample}\relax
\stopsetups
\startsetups otftracker-extra-uniscribe
\definedfont[\getvariable{otftracker}{font}*otftracker-harfbuzz-uniscribe at \getvariable{otftracker}{size}]\relax
\setotfcompositiondirection{\getvariable{otftracker}{direction}}\relax
\getvariable{otftracker}{sample}\relax
\stopsetups
\definecolor[otftracker-overlay-1][a=1,t=.5,b=1]
\definecolor[otftracker-overlay-2][a=1,t=.5,g=1]
\definecolor[otftracker-overlay-3][a=1,t=.5,r=1]
% This is a sort of a check against xetex but with limited font trickery because we bypass
% the normal font handling. It's no big deal for a test. The biggest problem is that we
% run into default features and we don't know what is turned on by default. We also need
% to disable tagging so that hb itself can do some (init/medi/fina) magic in setting
% features.
\startsetups otftracker-extra
\start
\blank
\definefontfeature
[otftracker-context-reordered]
[\getvariable{otftracker}{features}]
[reorderlookups=arab]
\definefontfeature
[otftracker-harfbuzz-uniscribe]
[\getvariable{otftracker}{features}]
[mode=plug,
features=harfbuzz,
shaper=uniscribe,
% stch=nothing,
% ccmp=nothing,
% locl=nothing,
% rlig=nothing,
% calt=nothing,
% mset=nothing,
fina=nothing, % looks like the libs does something special
init=nothing, % looks like the libs does something special
medi=nothing, % looks like the libs does something special
isol=nothing, % looks like the libs does something special
% method=binary,
script=arabic]
\definefontfeature
[otftracker-harfbuzz-native]
[\getvariable{otftracker}{features}]
[mode=plug,
features=harfbuzz,
shaper=native,
% stch=nothing,
% ccmp=nothing,
% locl=nothing,
% rlig=nothing,
% calt=nothing,
% mset=nothing,
fina=nothing, % looks like the libs does something special
init=nothing, % looks like the libs does something special
medi=nothing, % looks like the libs does something special
isol=nothing, % looks like the libs does something special
script=arabic]
\doifelsesomething {\getvariable{otftracker}{comment}} {
\def\ExtraComment{
\TB
\NC
comment
\NC
\vtop {
\hsize\dimexpr\hsize-10em\relax
\veryraggedright
\getvariable{otftracker}{comment}
}
\NC \NR
}
} {
\def\ExtraComment{}
}
\starttabulate[|lTB|l|]
\NC
context
\NC
\showglyphs \showfontkerns
\enabletrackers[otf.sample.silent]
\ruledhbox{\directsetup{otftracker-extra-context}}
\disabletrackers[otf.sample]
\NC \NR \TB \NC
reordered
\NC
\showglyphs \showfontkerns
\enabletrackers[otf.sample.silent]
\ruledhbox{\directsetup{otftracker-extra-context-reordered}}
\disabletrackers[otf.sample]
\NC \NR \TB \NC
harfbuzz
\NC
\showglyphs \showfontkerns
\enabletrackers[fonts.plugins.hb.colors]
\ruledhbox{\directsetup{otftracker-extra-harfbuzz}}
\disabletrackers[fonts.plugins.hb.colors]
\NC \NR \TB \NC
uniscribe
\NC
\showglyphs \showfontkerns
\enabletrackers[fonts.plugins.hb.colors]
\ruledhbox{\directsetup{otftracker-extra-uniscribe}}
\disabletrackers[fonts.plugins.hb.colors]
\NC \NR \TB \NC
context
\NC
\showglyphs \showfontkerns
\ruledhbox{\directsetup{otftracker-extra-context}}
\NC \NR \TB \NC
harfbuzz
\NC
\showglyphs \showfontkerns
\ruledhbox{\directsetup{otftracker-extra-harfbuzz}}
\NC \NR \TB \NC
uniscribe
\NC
\showglyphs \showfontkerns
\ruledhbox{\directsetup{otftracker-extra-uniscribe}}
\NC \NR \TB \NC
context harfbuzz
\NC
\showglyphs \showfontkerns
\hbox to \zeropoint {
\ruledhbox{\color[otftracker-overlay-1]{\directsetup{otftracker-extra-harfbuzz}}}
\hss
}
\ruledhbox{\color[otftracker-overlay-3]{\directsetup{otftracker-extra-context}}}
\NC \NR \TB \NC
uniscribe harfbuzz
\NC
\showglyphs \showfontkerns
\hbox to \zeropoint {
\ruledhbox{\color[otftracker-overlay-1]{\directsetup{otftracker-extra-harfbuzz}}}
\hss
}
\ruledhbox{\color[otftracker-overlay-2]{\directsetup{otftracker-extra-uniscribe}}}
\NC \NR \TB \NC
context uniscribe
\NC
\showglyphs \showfontkerns
\hbox to \zeropoint {
\ruledhbox{\color[otftracker-overlay-1]{\directsetup{otftracker-extra-uniscribe}}}
\hss
}
\ruledhbox{\color[otftracker-overlay-2]{\directsetup{otftracker-extra-context}}}
\NC \NR
\ExtraComment
\stoptabulate
\stop
\stopsetups
\stopmodule
|