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3f5301b284
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Stephen White 3f5301b284 GrTessellator: fix for collinear out-of-range intersections. 
Change 3b5a3fa8b1 introduced support
for out-of-range intersections, which is necessary when the top and
bottom vertices of an edge differ by only one ULP in the primary sort
order and can't be split in-order.

However, some out-of-range intersections produce edges which cancel
each other out on splitting, in particular when the intersection is
collinear with the newly-computed edge. This undoes the effect of the
split.  The tessellator then rewinds, re-detects the intersection, resplits,
an infinite loop.

The fix is to check for out-of-range intersections which are also
collinear, and ignore them. This is ok, because these are not
the cases we care about it change 3b5a3f above, which are
never collinear.

Bug: 753867
Change-Id: I590231e0e6f19c98f1ccf46cb7acc8a63ba35a9d
Reviewed-on: https://skia-review.googlesource.com/34925
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2017-08-16 13:52:48 +00:00
animations
bench Switch SkSL to std::string 2017-08-14 21:24:55 +00:00
bin add a Win/Clang build bot 2017-07-31 19:53:51 +00:00
debugger Add Make[backend] calls for creating GrContexts 2017-07-25 14:33:03 +00:00
dm Blacklist svgparse_* svgs on non-8888 2017-08-15 23:30:28 +00:00
docs fix links and missing constructor 2017-08-04 17:25:24 +00:00
example Add Make[backend] calls for creating GrContexts 2017-07-25 14:33:03 +00:00
experimental Add Make[backend] calls for creating GrContexts 2017-07-25 14:33:03 +00:00
fuzz Switch SkSL to std::string 2017-08-14 21:24:55 +00:00
gm Test blur small radii and text. 2017-08-14 19:16:55 +00:00
gn Add Chinese fling sample 2017-08-16 13:45:57 +00:00
include Remove SkTypeface::style(). 2017-08-15 20:57:57 +00:00
infra Blacklist svgparse_* svgs on non-8888 2017-08-15 23:30:28 +00:00
platform_tools Enable ios on Raspberry Pi 2017-04-25 16:56:41 +00:00
resources Move lang to list in Android font manager. 2017-08-14 19:29:05 +00:00
samplecode Add Chinese fling sample 2017-08-16 13:45:57 +00:00
site fix Vulkan doc typo 2017-08-07 16:53:19 +00:00
src GrTessellator: fix for collinear out-of-range intersections. 2017-08-16 13:52:48 +00:00
tests GrTessellator: fix for collinear out-of-range intersections. 2017-08-16 13:52:48 +00:00
third_party link libwebpmux in system-webp builds 2017-08-01 14:33:38 +00:00
tools Add Chinese fling sample 2017-08-16 13:45:57 +00:00
.clang-format Mark flatennable macros as block beginning/ending in .clang-format 2017-01-09 15:31:36 +00:00
.gitignore clang on windows support 2017-07-31 18:39:23 +00:00
.gn Basic standalone GN configs. 2016-07-21 12:25:45 -07:00
AUTHORS Added support for building for tvOS 2017-03-14 22:55:04 +00:00
BUILD.gn Revert "Turn on exceptions in test tools." 2017-08-16 13:20:29 +00:00
codereview.settings Make uploading to Gerrit the default for Skia 2016-11-09 19:07:56 +00:00
CONTRIBUTING
CQ_COMMITTERS Moved committer list to chrome-infra-auth and deleted it from the repo 2015-09-02 13:37:54 -07:00
DEPS Roll skia/third_party/externals/angle2/ 79f7104ab..aadc8f376 (1 commit) 2017-08-15 17:46:27 +00:00
Doxyfile Make the housekeeper upload doxygen to a newer bucket 2016-10-04 13:23:57 -07:00
LICENSE BUG=skia:5602 2016-09-02 11:19:34 -07:00
PRESUBMIT.py Update CQ extra trybots after switch to Debian 2017-06-29 19:35:40 +00:00
public.bzl upstream cr/165303354 2017-08-15 22:00:57 +00:00
README
README.chromium Update README.chromium. 2015-06-11 13:19:24 -07:00
whitespace.txt Revert "Revert "Make GrAtlasTextOp a non-legacy GrMeshDrawOp"" 2017-07-19 12:17:34 +00:00

README 

Skia is a complete 2D graphic library for drawing Text, Geometries, and Images.

See full details, and build instructions, at https://skia.org.