| 624637cc8ec22c000409704d0b403ac1b81ad4b0 |
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11-May-2015 |
caryclark <caryclark@google.com> |
Path ops formerly found the topmost unprocessed edge and determined its angle sort order to initialize the winding. This never worked correctly with cubics and was flaky with paths consisting mostly of vertical edges.
This replacement shoots axis-aligned rays through all intersecting edges to find the outermost one either horizontally or vertically. The resulting code is smaller and twice as fast.
To support this, most of the horizontal / vertical intersection code was rewritten and standardized, and old code supporting the top-directed winding was deleted.
Contours were pointed to by an SkTDArray. Instead, put them in a linked list, and designate the list head with its own class to ensure that methods that take lists of contours start at the top. This change removed a large percentage of memory allocations used by path ops.
TBR=reed@google.com
BUG=skia:3588
Review URL: https://codereview.chromium.org/1111333002
/external/skia/src/pathops/SkPathOpsLine.h
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| 1049f1246e7be4ccb68001361efceb8933e6f81c |
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20-Apr-2015 |
caryclark <caryclark@google.com> |
Now, path ops natively intersect conics, quads, and cubics in any combination. There are still a class of cubic tests that fail and a handful of undiagnosed failures from skps and fuzz tests, but things are much better overall.
Extended tests (150M+) run to completion in release in about 6 minutes; the standard test suite exceeds 100K and finishes in a few seconds on desktops.
TBR=reed
BUG=skia:3588
Review URL: https://codereview.chromium.org/1037953004
/external/skia/src/pathops/SkPathOpsLine.h
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| 54359294a7c9dc54802d512a5d891a35c1663392 |
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26-Mar-2015 |
caryclark <caryclark@google.com> |
cumulative pathops patch
Replace the implicit curve intersection with a geometric curve intersection. The implicit intersection proved mathematically unstable and took a long time to zero in on an answer.
Use pointers instead of indices to refer to parts of curves. Indices required awkward renumbering.
Unify t and point values so that small intervals can be eliminated in one pass.
Break cubics up front to eliminate loops and cusps.
Make the Simplify and Op code more regular and eliminate arbitrary differences.
Add a builder that takes an array of paths and operators.
Delete unused code.
BUG=skia:3588
R=reed@google.com
Review URL: https://codereview.chromium.org/1037573004
/external/skia/src/pathops/SkPathOpsLine.h
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| 0dc4dd6dda9a7912f696b46d9c02155ec1d1ba5f |
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24-Mar-2015 |
reed <reed@google.com> |
Revert of pathops version two (patchset #16 id:150001 of https://codereview.chromium.org/1002693002/)
Reason for revert:
ASAN investigation
Original issue's description:
> pathops version two
>
> R=reed@google.com
>
> marked 'no commit' to attempt to get trybots to run
>
> TBR=reed@google.com
>
> Committed: https://skia.googlesource.com/skia/+/ccec0f958ffc71a9986d236bc2eb335cb2111119
TBR=caryclark@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1029993002
/external/skia/src/pathops/SkPathOpsLine.h
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| ccec0f958ffc71a9986d236bc2eb335cb2111119 |
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24-Mar-2015 |
caryclark <caryclark@google.com> |
pathops version two
R=reed@google.com
marked 'no commit' to attempt to get trybots to run
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1002693002
/external/skia/src/pathops/SkPathOpsLine.h
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| dac1d17027dcaa5596885a9f333979418b35001c |
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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/SkPathOpsLine.h
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| 4431e7757cfcb8cfa99535eed0e9f156dabf95c2 |
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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/SkPathOpsLine.h
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| 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/SkPathOpsLine.h
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| 4fdbb229649caf74e5c1b55a1823926df903af34 |
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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/SkPathOpsLine.h
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| 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/SkPathOpsLine.h
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| 07393cab57ce74a4aae89a31fae9aaa9780fc19d |
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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/SkPathOpsLine.h
|