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49 Commits

Author SHA1 Message Date
Cosimo Lupo
1cb7e36bbd COLRv1: rename otData structs to remove 'V1' to match updated draft spec 
This is a breaking change (but the COLRv1 API was already marked as unstable and subject to change)

The changes in this PR are meant to match the changes from the COLRv1 draft spec at:
https://github.com/googlefonts/colr-gradients-spec/pull/302
 2021-06-28 16:13:47 +01:00
Cosimo Lupo
f2df149db3 COLR: set {BaseGlyph,Layer}RecordArray to None when no colorGlyphsV0 in populateCOLRv0 
Same when LayerV1List is empty. All these fields are optional in v1
 2021-05-14 10:47:13 +01:00
Just van Rossum
d601951eab
[otTables] Default varIdx should be 0xFFFFFFFF (#2298) 
* default value for varIdx should be 0xFFFFFFFF to indicate 'no variations'

* use lc hex notation as per feedback
 2021-05-07 22:26:48 +02:00
rsheeter
7abd234929
Update tests for new formats 2021-02-15 10:42:59 +00:00
rsheeter
5316ae4b8c Add test to expose missed otRound + fix 2021-02-12 20:23:06 -08:00
rsheeter
0353c809cd Update COLR build fns per review feedback 2021-02-12 10:02:08 -08:00
Cosimo Lupo
e542b60dde
colorLib: add generic TableUnbuilder, reverse of TableBuilder 2021-02-10 18:44:28 +00:00
rsheeter
cf4a4087be Generic build fns 2021-02-10 09:40:37 -08:00
Cosimo Lupo
df672a7ae4
move PaintFormat enum outside of Paint class nested scope 
When a TTFont is loaded with lazy=True, the otTables are only loaded upon BaseTable.__getattr__
when the requested attribute is not found in the instance __dict__.
Since the Paint.Format enum was defined at class level, every Paint instance, even when loaded
lazily, will have a 'Format' attribute and the magic decompile-on-missing-attribute will not
trigger, since the class attribute will be returned when the instance is missing one.

For this reason, and to not add further special cases, it's better to simply move this Paint.Format
enum class outside to the module level scope, and rename it PaintFormat.
 2021-02-05 12:11:43 +00:00
Cosimo Lupo
e20ccfcf9f
add unbuildPaintSweepGradient 2021-02-04 12:16:29 +00:00
Cosimo Lupo
22d290b06e
Merge remote-tracking branch 'origin/master' into colorLib-unbuilder 2021-02-04 12:09:30 +00:00
Cosimo Lupo
a7d145f027
update tests for PaintSweepGradient 2021-02-03 19:11:44 +00:00
Cosimo Lupo
93c23eaaf7
COLRv1: define new PaintSweepGradient, amend tests with new format numbers 2021-02-03 18:21:09 +00:00
Cosimo Lupo
8f66a1e813
COLRv1: add functions to un-build COLR otTables to raw dicts 
This adds an unbuildColrV1 which does the inverse of colorLib.builder.buildColrV1.
Takes a LayerV1List and BaseGlypV1List and returns a map of base glyphs to raw data structures (list, dict, float, str, etc.).
Useful not only for debugging purpose, but also for implementing COLRv1 subsetting (where we need to drop whole chunks of paints which may be reused by multiple glyphs).
 2021-02-03 16:47:59 +00:00
Cosimo Lupo
7516e0d95d
builder_test: add test with len(paints) > 255 2021-01-18 17:35:48 +00:00
Cosimo Lupo
9d33afe04d
COLRv1: support unlimited paints as 255-ary tree of PaintColrLayers 
Fixes https://github.com/googlefonts/nanoemoji/pull/225

E.g. BASKET noto-emoji U+1F9FA contains 364 layers
 2021-01-18 17:33:21 +00:00
Cosimo Lupo
b465dcff75
rename function to round_start_circle_stable_containment 
as suggested in https://github.com/fonttools/fonttools/pull/2148#discussion_r557656073
 2021-01-15 17:37:11 +00:00
Cosimo Lupo
4f1102ac6e
add a Circle class, handle concentrical case, explain why 2 iterations are enough 2021-01-15 16:59:17 +00:00
Cosimo Lupo
db14e6375e
COLRv1: avoid abrupt change after rounding c0 when too near c1's perimeter 
Fixes https://github.com/googlefonts/picosvg/issues/158

Also see https://github.com/googlefonts/colr-gradients-spec/issues/204
 2021-01-14 17:13:22 +00:00
Cosimo Lupo
538528d5a1
COLRv1: Implement PaintTranslate 
https://github.com/googlefonts/colr-gradients-spec/pull/163
 2020-12-15 16:58:31 +00:00
rsheeter
d888526659 Hook up paint skew and rotate 2020-12-02 21:21:19 -08:00
Cosimo Lupo
b6ef2408c5
colorLib_test: test that we accept either tuple or list for COLRv0 layer 
https://github.com/googlefonts/ufo2ft/issues/426
 2020-11-16 16:29:18 +00:00
rsheeter
cf2097f7c0 Update to builder per review discussion 2020-11-10 21:51:33 -08:00
rsheeter
cd39e6e246 Add a test 2020-11-06 14:59:52 -08:00
rsheeter
5c83b5be47 Don't generate a PaintColrLayers for a list of 1 2020-11-04 21:59:30 -08:00
rsheeter
f531038bf9 Start hooking up revised PaintColrLayers 2020-11-04 14:36:43 -08:00
Cosimo Lupo
e992953474
swap xy and yx fields in COLRv1 Affine2x3 struct 
following the latest draft
See discussion at https://github.com/googlefonts/colr-gradients-spec/pull/85
 2020-10-30 19:29:59 +00:00
Cosimo Lupo
6c752f677f
rename Paint{ColorGlyph,ColrSlice} 2020-10-27 19:15:50 +00:00
Cosimo Lupo
b654554109
add {First,Last}LayerIndex to PaintColorGlyph 
as proposed in https://github.com/googlefonts/colr-gradients-spec/issues/86

The name of PaintColorGlyph may still change to PaintColorSlice, or PaintColrSlice, or PaintColorGlyphSlice, etc."
https://github.com/googlefonts/colr-gradients-spec/pull/87
 2020-10-27 12:47:10 +00:00
Cosimo Lupo
8cffabfb58
builder_test: test buildPaint{ColorGlyph,Transform,Composite} 2020-10-26 18:14:13 +00:00
Cosimo Lupo
1803283baf
colorLib: use IntEnum instead of 'magic' Paint format integers 
makes code more readable
 2020-10-26 18:14:13 +00:00
Cosimo Lupo
a2aaf41a7e
colorLib: rename builders to match current Paint format names 2020-10-09 19:36:35 +01:00
Cosimo Lupo
fdf6a5c1fc
colorLib: update builders to latest COLRv1 draft 
LayerV1Record and Affine2x2 are gone.
LayerV1List now contains a list of Paint DAGs
Added 4 new Paint formats: PaintGlyph, PaintColorGlyph, PaintTransform
and PaintComposite
 2020-10-09 19:36:35 +01:00
Cosimo Lupo
ff79338607
rename radial gradient Paint.Affine attribute to Transform 
as suggested by Peter Constable in
https://github.com/PeterConstable/OT_Drafts/blob/master/COLR_V1/COLRv1formats_rev3.md#paintformat3-table-conicalradial-gradient
 2020-07-02 12:21:12 +01:00
Cosimo Lupo
ac0a755d20
make linear/radial gradient 'point-less', inline x0,y0,x1,y1,... 
https://github.com/googlefonts/colr-gradients-spec/issues/21
 2020-07-02 12:11:40 +01:00
Cosimo Lupo
dea9896421
rename COLR Color -> ColorIndex, transparency to alpha 
https://github.com/googlefonts/colr-gradients-spec/issues/17
https://github.com/googlefonts/colr-gradients-spec/issues/19
 2020-07-02 10:27:47 +01:00
Cosimo Lupo
4578f96e9d
colorLib_test: minor cosmetic changes 2020-07-01 18:29:26 +01:00
Cosimo Lupo
b215c000df
Rename LayerV1Array to LayerV1List, like with BaseGlyphV1List 
See https://github.com/googlefonts/colr-gradients-spec/issues/14#issuecomment-652542829
 2020-07-01 18:22:03 +01:00
Cosimo Lupo
5f18d9891c
rename BaseGlyphV1Array to BaseGlyphV1List 
As suggested by Peter Constable in https://github.com/googlefonts/colr-gradients-spec/issues/14 and https://github.com/googlefonts/colr-gradients-spec/issues/18
 2020-07-01 18:16:07 +01:00
Cosimo Lupo
971bcbff6f
colorLib: allow color stops to be built from list of dicts as well as tuples 2020-03-12 16:03:11 +00:00
Cosimo Lupo
5a8830ebc9
colorLib_test: add test for buildCORL with automatic or explicit 'version' 2020-03-11 19:01:25 +00:00
Cosimo Lupo
63e2be484e
colorLib: refactor _splitSolidAndGradientGlyphs and add test 2020-03-11 14:22:58 +00:00
Cosimo Lupo
5629d5d8d9
colorLib: allow to build Paint, ColorLine, Color from dict 2020-03-11 13:27:59 +00:00
Cosimo Lupo
0149f40588
colorLib_test: add tests for buildLayerV1Array, buildBaseGlyphV1Array 2020-03-10 15:34:53 +00:00
Cosimo Lupo
44d729ad3c
colorLib: in buildColorStop accept color tuple as parameter 
and use Sequence instead of List for input params type hints
 2020-03-10 11:49:04 +00:00
Cosimo Lupo
be3265f136
colorLib_test: add tests for build{Linear,Radial}GradientPaint 2020-03-10 11:49:04 +00:00
Cosimo Lupo
5eb11359ea
colorLib_test: add tests for more builder funcs 2020-03-09 16:58:13 +00:00
Cosimo Lupo
a0a4901a5e
colorLib_test: add tests for buildCPAL v1 2020-02-17 18:28:24 +00:00
Cosimo Lupo
acfae6721b
add tests for buildCORL and buildCPAL 2020-02-17 12:11:53 +00:00