History log of /external/skia/src/pathops/SkIntersections.h
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
dac1d17027dcaa5596885a9f333979418b35001c 17-Jun-2014 caryclark <caryclark@google.com> Enabling the canvas bit to turn the clip stack into a flat replace exposed around 100 failures when testing the 800K skp set generated from the top 1M web sites.

This fixes all but one of those failures.

Major changes include:
- Replace angle indices with angle pointers. This was motivated by the need to add angles later but not renumber existing angles.
- Aggressive segment chase. When the winding is known on a segment, more aggressively passing that winding to adjacent segments allows fragmented data sets to succeed.
- Line segments with ends nearly the same are treated as coincident first.
- Transfer partial coincidence by observing that if segment A is partially coincident to B and C then B and C may be partially coincident.

TBR=reed

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/272153002
/external/skia/src/pathops/SkIntersections.h
8cb1daaa1e4343eb60a7c4f21c12e33de30dad64 25-Apr-2014 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> fix minor skp-found bugs

remove globals from pathops_unittest

BUG=skia:2460
TBR=mtklein

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/239563004

git-svn-id: http://skia.googlecode.com/svn/trunk@14378 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
4431e7757cfcb8cfa99535eed0e9f156dabf95c2 14-Apr-2014 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Mike R: please sanity check SkPostConfig.h
Mike K: please sanity check Test.cpp and skia_test.cpp

Feel free to look at the rest, but I don't expect any in depth review of path ops innards.

Path Ops first iteration used QuickSort to order segments radiating from an intersection to compute the winding rule.

This revision uses a circular sort instead. Breaking out the circular sort into its own long-lived structure (SkOpAngle) allows doing less work and provides a home for caching additional sorting data.

The circle sort is more stable than the former sort, has a robust ordering and fewer exceptions. It finds unsortable ordering less often. It is less reliant on the initial curve tangent, using convex hulls instead whenever it can.

Additional debug validation makes sure that the computed structures are self-consistent. A new visualization tool helps verify that the angle ordering is correct.

The 70+M tests pass with this change on Windows, Mac, Linux 32 and Linux 64 in debug and release.

R=mtklein@google.com, reed@google.com

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/131103009

git-svn-id: http://skia.googlecode.com/svn/trunk@14183 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
866f4e34a943c115ac372c22123a1520aa5f9b06 21-Nov-2013 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> optimize pathops coverage

Remove unused code from SkOpSegment.cpp and friends.
Add new tests exposed by coverage.
Fix a bug exposed by coverage -- removing the need to detect points that are nearby when intersecting.
Add gyp rule for building coverage flavor on Mac.

R=mtklein@google.com

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/75453003

git-svn-id: http://skia.googlecode.com/svn/trunk@12344 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
a2bbc6e19d5332e81784e582c290cc060f40c4c7 01-Nov-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> pathops work in progress

BUG=

Review URL: https://codereview.chromium.org/52653002

git-svn-id: http://skia.googlecode.com/svn/trunk@12089 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
7eaa53d8f7e48fd17d02b5e3bd91f90e9c1899ef 02-Oct-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops work in progress

make more skps work

remove edit files

BUG=

Review URL: https://codereview.chromium.org/23542056

git-svn-id: http://skia.googlecode.com/svn/trunk@11570 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
570863f2e22b8ea7d7c504bd15e4f766af097df2 16-Sep-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops work in progress

path ops work in progress

BUG=

Review URL: https://codereview.chromium.org/21359002

git-svn-id: http://skia.googlecode.com/svn/trunk@11291 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
4fdbb229649caf74e5c1b55a1823926df903af34 23-Jul-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> turn off debugging printfs

fix pathops issues 1417, 1418

be more rigorous about pulling intersections of lines to end points
rewrite cubic/line and quad/line intersections to share style

BUG=

Review URL: https://codereview.chromium.org/19543005

git-svn-id: http://skia.googlecode.com/svn/trunk@10270 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
fa2aeee27af27f2934ee52a9732148f66481fb03 15-Jul-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops near exact

Modify line intersections to first
- match exact ends
- compute intersections
- match near ends
where the exact ends are preferred, then near matches, then
computed matches. This pulls matches towards existing end points
when possible, and keeps intersection distances consistent with
different line/line line/quad and line/cubic computations.

BUG=

Review URL: https://codereview.chromium.org/19183003

git-svn-id: http://skia.googlecode.com/svn/trunk@10073 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
07e97fccd2d85076cd22ef411b0773ab92a18abe 08-Jul-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops work in progress

BUG=

Review URL: https://codereview.chromium.org/18058007

git-svn-id: http://skia.googlecode.com/svn/trunk@9908 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
cffbcc3b9665f2c928544b6fc6b8a0e22a4210fb 04-Jun-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops -- rewrite angle sort

This is a major change resulting from a minor
tweak. In the old code, the intersection point
of two curves was shared between them, but the
intersection points and end points of sorted edges was
computed directly from the intersection T value.

In this CL, both intersection points and sorted points
are the same, and intermediate control points are computed
to preserve their slope.

The sort itself has been completely rewritten to be more
robust and remove 'magic' checks, conditions that empirically
worked but couldn't be rationalized.

This CL was triggered by errors generated computing the clips
of SKP files. At this point, all 73M standard tests work and
at least the first troublesome SKPs work.

Review URL: https://codereview.chromium.org/15338003

git-svn-id: http://skia.googlecode.com/svn/trunk@9432 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
a5e55925ea03e76885804bda77408a1d6f04c335 07-May-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops -- fix skp bugs

This fixes a series of bugs discovered by running
the small set of Skia skp files through pathops
to flatten the clips.
Review URL: https://codereview.chromium.org/14798004

git-svn-id: http://skia.googlecode.com/svn/trunk@9042 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
b3f0921fba9457ba7ea79f220d8c1ec9345bfd3a 17-Apr-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> shape ops work in progress

Try to fix the 32 bit build by making some math
decisions more robust.

Rewrite the cubic intersection special case that
detects if only end points are shared.

Rewrite the angle sort setup that computes whether
a cubic bends to the left or right.

git-svn-id: http://skia.googlecode.com/svn/trunk@8726 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h
07393cab57ce74a4aae89a31fae9aaa9780fc19d 08-Apr-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Add base types for path ops

Paths contain lines, quads, and cubics, which are
collectively curves.

To work with path intersections, intermediary curves
are constructed. For now, those intermediates use
doubles to guarantee sufficient precision.

The DVector, DPoint, DLine, DQuad, and DCubic
structs encapsulate these intermediate curves.

The DRect and DTriangle structs are created to
describe intersectable areas of interest.

The Bounds struct inherits from SkRect to create
a SkScalar-based rectangle that intersects shared
edges.

This also includes common math equalities and
debugging that the remainder of path ops builds on,
as well as a temporary top-level interface in
include/pathops/SkPathOps.h.
Review URL: https://codereview.chromium.org/12827020

git-svn-id: http://skia.googlecode.com/svn/trunk@8551 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkIntersections.h