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1298 Commits

Author SHA1 Message Date
Behdad Esfahbod
8963f3bbed Simplify fixedToFloat() a bit more 2015-06-08 17:26:59 -07:00
Sascha Brawer
64d8411c1c Remove work-around for https://github.com/behdad/fonttools/issues/286 2015-06-08 23:03:17 +02:00
Sascha Brawer
cd8af14991 [GX] Leave 'gvar' coordinates unchanged when round-tripping through TTX 
Before this change, a rounding issue in fixedToFloat() would sometimes
change 'gvar' coordinate values when round-tripping Skia.ttf through TTX.
This change works around https://github.com/behdad/fonttools/issues/286.
 2015-06-08 23:00:03 +02:00
Sascha Brawer
9dd0a7e4cd [GX] Replace range(len(...)) by enumerate(...) 
This addresses 7271b779f3 (commitcomment-11374941)
 2015-06-08 23:00:03 +02:00
Sascha Brawer
5ba59b3f4b [gvar] Take glyphs from gvar.variations 
When compiling the set of shared coordinates, walk over glyphs in
self.variations instead of retrieving them in glyph order.

This addresses a code review comment:
0f86c1c0d3 (commitcomment-11375190)
 2015-06-08 23:00:03 +02:00
Sascha Brawer
1447730438 Fix most pylint warnings for 'gvar' table 2015-06-08 23:00:03 +02:00
Sascha Brawer
b633f8ef14 [GX] Fix 'gvar' unittest for Python 3.2. 
In Python 3.2, the unittest framework fails to recognize
that (1, range(65535)) is the same as (1, range(65535)).
In any othe Python version from 2.6 to 3.4, this works fine.
 2015-06-08 23:00:03 +02:00
Sascha Brawer
b2baf62ffc [GX] Avoid deprecation warnings for testing 'gvar' handling 
Python's unittest framework has deprecated assertEquals()
in favor of assertEqual().
 2015-06-08 23:00:02 +02:00
Sascha Brawer
513458f558 [GX] Test round-trip decompile/compile for glyph variations 
Also, implement an __eq__ method on GlyphVariation so we can verify
whether the result of round-tripping actually equals the original input.
 2015-06-08 23:00:02 +02:00
Sascha Brawer
5c58ba221a [GX] Backport 'gvar' table handling to Python 2.6 
In Python 2.6, there were no set literals like {1, 2, 3}.
Also, unittest had no assertSetEqual() and assertListEqual() methods.
 2015-06-08 23:00:02 +02:00
Sascha Brawer
54866e9294 Minor changes for Python 3 2015-06-08 23:00:02 +02:00
Sascha Brawer
6d5049cb57 Minor changes towards supporting python3. 2015-06-08 23:00:02 +02:00
Sascha Brawer
e4377af3fd Replace xrange() by range(), for python3 
In Pyton 3, range() is implemented like xrange() in Python 2,
and there is no xrange() anymore. The savings from xrange() are
too small for us to really bother, so we choose to live inefficiently
on Python 2.
 2015-06-08 23:00:02 +02:00
Sascha Brawer
9bb1ca02ba [GX] Remove obsolete, unused helper method 2015-06-08 23:00:01 +02:00
Sascha Brawer
7d0f22e1e3 [GX] Temporarily disable code path for emitting shared points in 'gvar' tables 
With this work-around, all of {Skia, BuffaloGalRegular, JamRegular}.ttf
can be round-tripped through TTX, and the resulting TrueType font
can be displayed by MacOS X 10.9.5 including glyph variations.
 2015-06-08 23:00:01 +02:00
Sascha Brawer
b309a36157 [GX] Improve tests for compiling 'gvar' tables 2015-06-08 23:00:01 +02:00
Sascha Brawer
d5005c7f3e [GX] Compile 'gvar' tables 2015-06-08 23:00:01 +02:00
Sascha Brawer
4930366117 [GX] Add randomized test for round-trip fidelity of 'gvar' delta encoding 2015-06-08 23:00:01 +02:00
Sascha Brawer
b85ff8ed31 [GX] Compile delta offsets for 'gvar' table to compact encoding 2015-06-08 23:00:01 +02:00
Sascha Brawer
94bf26eace Minor 2015-06-08 23:00:00 +02:00
Sascha Brawer
054002225d [GX] Test round-trip compilation of randomized 'gvar' points 2015-06-08 23:00:00 +02:00
Sascha Brawer
79e704807d [GX] Add comment on when to use shared versus private point lists for 'gvar' tuples 2015-06-08 23:00:00 +02:00
Sascha Brawer
970c37e395 [GX] Compile sets of packed point numbers for 'gvar' table 
Work in progress. Prints out various debug info that will be removed
in the final version.
 2015-06-08 23:00:00 +02:00
Sascha Brawer
6976d8ed33 [GX] Omit 'gvar' tuples whose deltas are all zero 
In the Apple Skia font, about 5% of all tuples are redundant
because all their delta offsets are (0, 0); these tuples can
be omitted without any visual loss. But in the BuffaloGalRegular
and JamRegular fonts, there are no such redundant tuples.
 2015-06-08 23:00:00 +02:00
Sascha Brawer
362aadc8e7 Fix typo in name of test method 2015-06-08 23:00:00 +02:00
Sascha Brawer
303caee946 [GX] Rename decompileTuples_() to decompileGlyph_i() 
For symmetry with compileGlyph_(), and because the name carries more meaning.
 2015-06-08 23:00:00 +02:00
Sascha Brawer
936d079428 [GX] Fix default coordinate values for non-intermeditate 'gvar' tuples 2015-06-08 22:59:59 +02:00
Sascha Brawer
50a2ada262 [GX] Test compileGlyph() for 'gvar' table without actual variations 2015-06-08 22:59:59 +02:00
Sascha Brawer
86ecd4dac0 [GX] Build shared coordinate table when compiling 'gvar' 2015-06-08 22:59:59 +02:00
Sascha Brawer
21098228f0 [GX] Resurrect 'gvar' table from XML 2015-06-08 22:59:59 +02:00
Sascha Brawer
908bc15b74 [GX] Move decompilePoints() and decompileDeltas() into class GlyphVariation 2015-06-08 22:59:59 +02:00
Sascha Brawer
3f715e433e [GX] Move helper methods for (de)compiling GlyphVariation into class GlyphVariation 
Specifically, compileCoords(), decompileCoords(), compileCoord(), decompileCoord(),
and getTupleSize().
 2015-06-08 22:59:59 +02:00
Sascha Brawer
19863123d6 [GX] Add methods compileCoord() and compileCoords() 2015-06-08 22:59:58 +02:00
Sascha Brawer
c7650e5cb1 [GX] In XML for 'gvar' table, rename glyphVariation to glyphVariations 
It is a list of variations, not a single variation.
 2015-06-08 22:59:58 +02:00
Sascha Brawer
a82affb34c [GX] Move XML generation for GlyphVariations into separate method 2015-06-08 22:59:58 +02:00
Sascha Brawer
e0bd569a73 [GX] Align signature of decompileCoord() with that of similar methods 2015-06-08 22:59:58 +02:00
Sascha Brawer
5352ceb824 [GX] Handle intermediate coordinates in 'gvar' tuples 2015-06-08 22:59:58 +02:00
Sascha Brawer
343539d569 [GX] Write 'gvar' coordinates to XML 2015-06-08 22:59:58 +02:00
Sascha Brawer
50f3ca52da [GX] Handle embedded coordinates of 'gvar' tuples 2015-06-08 22:59:57 +02:00
Sascha Brawer
ea071c3025 [GX] Decompile non-embedded 'gvar' tuple coordinates 2015-06-08 22:59:57 +02:00
Sascha Brawer
39622ed66d [GX] Parse 'gvar' tuples and write them as XML 2015-06-08 22:59:57 +02:00
Sascha Brawer
5f317b2ed4 [GX] Decode packed point numbers 2015-06-08 22:59:57 +02:00
Sascha Brawer
1f650d7f72 Minor docfix 2015-06-08 22:59:57 +02:00
Sascha Brawer
1d90b77d2e Parse tuple header in 'gvar' table 2015-06-08 22:59:57 +02:00
Sascha Brawer
3b32f25ebd Use xrange() instead of range() 2015-06-08 22:59:56 +02:00
Sascha Brawer
9d7102fdfe [GX] Implement decoding of packed deltas 2015-06-08 22:59:56 +02:00
Sascha Brawer
41c2081a5c Fix unittest on 'gvar' shared coordinates 2015-06-08 22:59:56 +02:00
Sascha Brawer
37e9e04f0b Avoid string copies when parsing 'gvar' table 2015-06-08 22:59:56 +02:00
Sascha Brawer
674fb52c37 Assemble offset table for 'gvar' 2015-06-08 22:59:56 +02:00
Sascha Brawer
56a4d3f9e3 [GX] Handle 'gvar' table with glyph variations 2015-06-08 22:59:56 +02:00