58 Commits

Author SHA1 Message Date
Behdad Esfahbod
c4b475852d [varLib.merger] Implement FeatureVariations instantiation
Fixes https://github.com/fonttools/fonttools/issues/1244
2018-10-14 23:25:56 -07:00
Cosimo Lupo
d570fc038a
use otRound when rounding visual coordinates or deltas
So we now round towards +Infinity in:

- floatToFixed (which fully examplify that quotes from OT spec)
- psCharStrings: when packing floats as fixed 16.16
- t2CharStringPen: when rounding coordinates and advance widths
- subset: when rounding advance widths to compute average
- TupleVariation: rounding gvar deltas
- _g_l_y_f: when rounding coordinates: both in GlyphComponent.{x,y}
  and for GlyphCoordinates.toInt()
- _h_m_t_x: for rounding horiz/vert metrics
- varLib: rounding horiz metrics and deltas
2018-06-14 17:40:11 +01:00
Behdad Esfahbod
633f44da39 [varLib.merger] Fix merging of PairPos Format2 with missing subtables 2018-01-08 10:49:25 +00:00
Behdad Esfahbod
e58499cc06 [varLib.merger] Minor 2018-01-08 10:31:50 +00:00
Behdad Esfahbod
b624e0c08e [varLib.merger] Handle missing PairPos format1/2 subtables in AligningMerger
Fixes https://github.com/fonttools/fonttools/issues/1125

The Format2 is still failing in my test case. Investigating.
2018-01-08 10:27:33 +00:00
Behdad Esfahbod
3fbc4688eb [varLib.mutator] Drop GDEF is nothing left in it
Part of fixing https://github.com/fonttools/fonttools/pull/1079#issuecomment-338710803
2017-10-25 11:58:44 -04:00
Behdad Esfahbod
0b5a923ef8 [varLib.mutator] Fix mutating of ValueRecord objects
Part of fixing https://github.com/fonttools/fonttools/pull/1079#issuecomment-338710803
2017-10-25 11:58:32 -04:00
Behdad Esfahbod
69bbddea92 [varLib.mutator] Correctly unset Device entries that are None
Part of fixing https://github.com/fonttools/fonttools/pull/1079#issuecomment-338710803
2017-10-25 11:58:32 -04:00
Cosimo Lupo
28bb992c1f replace int(round(...)) with round(...)
We don't need to cast to int when using the round function from py23,
as this is a backport of python3's built-in round and thus it returns
an int when called with a single argument.
2017-10-22 12:03:52 +01:00
Behdad Esfahbod
5eb3cbe2b0 [varLib.mutator] Mutate GPOS
Cleans up GDEF varstore as well.

What's left:

- In none of the varLib.merger Mergers we handle the CaretValueFormat3. That should be done,
  even though no one uses this,

- GPOS/GSUB FeatureVariations are not applied.  Shouldn't be hard.

- 'rvrn' should be folded into 'ccmp' or some other default feature.
2017-10-20 20:13:14 -04:00
Behdad Esfahbod
8db7a65d39 [varLib.varStore] New module 2017-10-20 20:13:14 -04:00
Behdad Esfahbod
b9151ffacb [varLib] Add assertions to make sure we merge similar ValueFormat2-zeroedness 2017-08-04 09:22:43 +01:00
Behdad Esfahbod
f3031ce797 [varLib] Add comment 2017-08-04 08:55:34 +01:00
Behdad Esfahbod
010ea47de1 [varLib] Minor rename 2017-08-04 08:41:29 +01:00
Behdad Esfahbod
c55ef5257d [varLib] Flatten multiple tail PairPosFormat2 subtables before merging
Reuses the aligner.  Neat.
2017-08-01 19:06:40 +01:00
Behdad Esfahbod
eca0c441d1 [varLib] Factor out PairPosFormat2 matrix alignment code 2017-08-01 19:06:40 +01:00
Behdad Esfahbod
3d1f5ae7d4 [varLib.merger] Fixup on previous commit
Also drop Extension from self.
2017-07-28 18:33:01 +01:00
Behdad Esfahbod
f7c20cf895 [varLib.merger] Remove Extensions subtables before merging 2017-07-28 18:17:21 +01:00
Behdad Esfahbod
8dc5340b1d [varLib] Minor; Remove nonexistent attribute name from ignore list 2017-07-14 09:12:04 +01:00
Jens Kutilek
ebbbccae4c For SinglePos format 2, calculate ValueFormat from a list of value records 2017-07-06 10:38:36 +02:00
Jens Kutilek
68e9fcec59 Recalculate ValueFormat when merging SInglePos 2017-07-05 19:06:41 +02:00
Behdad Esfahbod
7ee1d2e2d5 [varLib.merger] In InstancerMerger, compute scalars once
Using new VariationModel API to separate scalar calculation from
interpolation.
2017-05-23 00:54:11 -07:00
Behdad Esfahbod
0ed2df3f22 [varLib.interpolate_layout] Import designspace-loading logic from varLib
When varLib was updated for avar table, this was not.  Share code such
that they don't get out of sync again.  All of this to be made into
proper API some time...
2017-05-22 19:40:20 -07:00
Behdad Esfahbod
81498e5baf [varLib] Fix bug with recombining PairPosClass2 subtables that don't
Ouch.  I have no idea why I made two separate if's to begin with, but the
continue should have also been aligned with the inner block...

Fixes root cause of https://github.com/fonttools/fonttools/issues/914
but now we hit an unimplemented feature there...
2017-05-20 23:03:25 -07:00
Behdad Esfahbod
1b5e1c4b06 [varLib.merger] Fix _ClassDef_invert() to limit classes to allGlyphs
Fixes https://github.com/fonttools/fonttools/issues/939

We should rename this function and expose it publicly somewhere.
2017-04-27 16:41:22 -07:00
Behdad Esfahbod
86549315fd [varLib.merger] Fix recombining of multiple PairPosFormat2 subtables
Gosh!  This is the kind of thinko that doesn't happen with less dynamic languages...

Good one hour of debugging at TYPO Labs. Glad this one is fixed finally!

Fixes https://github.com/fonttools/fonttools/issues/888
2017-04-06 15:29:13 +02:00
Behdad Esfahbod
4c07266971 [varLib] Minor 2017-04-06 15:29:09 +02:00
Behdad Esfahbod
9798c30d57 [varLib.merger] Really recombine multiple PairPosFormat2 subtables...
Fixup for 49d311550c29f7501dd4bc91cb24074e3d607b77

Previous try was completely dropping the ParPosFormat2 subtables. Ouch!

Fixes https://github.com/fonttools/fonttools/issues/888
2017-03-17 20:30:56 -07:00
Behdad Esfahbod
49d311550c [varLib.merger] Recombine multiple PairPosFormat2 subtables...
...if they were split because of offset overflows.

Fixes https://github.com/fonttools/fonttools/issues/888
for most common cases.
2017-03-16 17:51:59 -07:00
Behdad Esfahbod
92cb5d28d6 [varLib.merger] Shuffle _ClassDef_invert for more uses 2017-03-16 17:46:28 -07:00
Behdad Esfahbod
7f83d6d445 [varLib.merger] Add TODO item 2017-03-16 16:18:27 -07:00
Behdad Esfahbod
0f5a46b1f9 [varLib.merger] Only insert PairPosFormat1 if non-empty
This is proper fix for c8b2088162f1542dd29b2d370aa2a2c081452559
2017-03-16 16:15:10 -07:00
Behdad Esfahbod
c8b2088162 Revert "[varLib.merger] only insert merged PairPosFormat1 subtable if at least one font has one"
This reverts commit d83c2fb2090fa58f94fdf32d1aa2d2d8665cec05.

This is wrong. We should insert if and only iff there's at least one of the
fonts with a Format1. Yours doesn't look at all fonts. Since this one is not a
bugfix but improvement, I'll fix it separately.
2017-03-16 16:07:46 -07:00
Cosimo Lupo
23511fd302
[varLib.merger] set ClassDef{1,2}.Format using same logic as otTables.ClassDef.preWrite 2017-03-14 16:14:08 +00:00
Cosimo Lupo
e6125b353e
[varLib.merger] avoid reusing the same Class2Record (mutable) objects
Class2Record is mutable, hence doing `[rec2] * l.Class2Count` produces a list containing multiple references to the same instance. When later on we do the interpolation, modifying one would modify them all.
We need to instantiate distinct objects.

See 6f41c2ab53 (commitcomment-21310803)
2017-03-14 14:46:17 +00:00
Cosimo Lupo
d83c2fb209
[varLib.merger] only insert merged PairPosFormat1 subtable if at least one font has one 2017-03-14 14:29:10 +00:00
Cosimo Lupo
aad0d46069
[varLib.merger] fix IndexError with empty ClassDef1 in PairPosFormat2
https://github.com/fonttools/fonttools/pull/881#issue-213020690
2017-03-14 14:26:55 +00:00
Behdad Esfahbod
fb0c60cd2c [varLib.merge] Fix tests
Set Coverage.Format to 1. This is rather arbitrary, which is exactly
why Coverage.Format doesn't make sense and should not have been
exposed to begin with.
2017-03-08 12:52:56 -08:00
Behdad Esfahbod
d7e8af9510 [varLib] Fix regression where GPOS values were stored as 0
Another fallover from merging of VariationMerger and InstancerMerger.

New code is closer to the selfless merger we want to have.

Fixes https://github.com/fonttools/fonttools/issues/834
2017-02-09 19:35:24 -08:00
Behdad Esfahbod
d801056100 [varLib] Allow merging of class-based kerning when ClassDef1's are different
This should allow building varfonts for a whole class of font sources
that failed so far.
2017-02-08 14:29:02 -08:00
Behdad Esfahbod
9544a538ee [varLib] Minor rename in prep for ClassDef1 merging 2017-02-08 14:14:08 -08:00
Behdad Esfahbod
dc07fe4f8f [varLib] Allow merging of class-based kerning when ClassDef2's are different
With this, we can build varfont for NotoSansThai and a couple more.

This is the first use of fontTools.misc.classifyTools module.
2017-02-07 16:09:14 -08:00
Behdad Esfahbod
ef0eb9dc8f [varLib] Move code around 2017-02-05 18:52:27 -08:00
Behdad Esfahbod
b5c34ceb15 [varLib] Fix building variation of PairPosFormat2
I broke this with a738464f775c190bf70e26d0a32ff2344ec43201
Ouch!
2017-02-05 18:48:15 -08:00
Cosimo Lupo
3717dc6549
[varLib.merger] set initializer for reduce() to handle empty sequences; import reduce from functools for py3
When reduce() receives an empty sequence, it raises TypeError, unless it is given a third 'initializer' argument

ValueFormat values should default to 0, so we shall use that as initializer.

Also, the reduce() built-in is no longer available on Python 3.
It's still accessible for both py2 and py3 from functools.

Fixes https://github.com/googlei18n/fontmake/issues/241
2017-01-30 16:51:41 +00:00
Behdad Esfahbod
a738464f77 [varLib] Let VariationMerger use AligningMerger for PairPos
VariationMerger now has all the intelligence of AligningMerge.
Should be good for a while...
2017-01-25 23:34:28 -08:00
Behdad Esfahbod
dd6fb82d66 [varLib] Move common code into a parent merger 2017-01-25 20:43:00 -08:00
Behdad Esfahbod
fece08bc32 [varLib] Enable subclassing of mergers
Theoretically diamond shapes and mixins should work as well.
2017-01-25 20:39:21 -08:00
Behdad Esfahbod
a34a7c906e [varLib] Towards making subclassed mergers working 2017-01-25 20:30:44 -08:00
Behdad Esfahbod
5e1be9e5e7 [varLib] Move code around 2017-01-25 20:11:35 -08:00