| Commit message (Collapse) | Author | Age |
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Add support for tight bounds to detect and return moveTo
followed by close or zero-length lineTo.
Also short circuit so that hard work is avoided when
the path bounds is also the tight bounds.
Avoid doing work if the bounds can be trivially computed.
Include naked moveTo coordinates in the tight bounds.
R=fmalita@chromium.org
BUG=skia:5555, skia:5553
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2394443004
Review-Url: https://codereview.chromium.org/2394443004
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The path writer takes constructs the output path out of
curves that satisfy the pathop operation.
Curves contain lists of t/point pairs that may not be
comparable to each other. To match up curve ends in the
output path, look for adjacent curves to have a shared
membership rather than comparing point values.
Use path utilities to connect partial curve lists into
closed contours.
Share the angle code that determines if a curve has become
a degenerate line with the path writer.
Clean up some code on the way, and delete some unused
functions.
TBR=reed@google.com
BUG=5188
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2321973005
Review-Url: https://codereview.chromium.org/2321973005
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Most changes stem from working on an examples bracketed
by #if DEBUG_UNDER_DEVELOPMENT // tiger
These exposed many problems with coincident curves,
as well as errors throughout the code.
Fixing these errors also fixed a number of fuzzer-inspired
bug reports.
* Line/Curve Intersections
Check to see if the end of the line nearly intersects
the curve. This was a FIXME in the old code.
* Performance
Use a central chunk allocator.
Plumb the allocator into the global variable state
so that it can be shared. (Note that 'SkGlobalState'
is allocated on the stack and is visible to children
functions but not other threads.)
* Refactor
Let SkOpAngle grow up from a structure to a class.
Let SkCoincidentSpans grow up from a structure to a class.
Rename enum Alias to AliasMatch.
* Coincidence Rewrite
Add more debugging to coincidence detection.
Parallel debugging routines have read-only logic to report
the current coincidence state so that steps through the
logic can expose whether things got better or worse.
More functions can error-out and cause the pathops
engine to non-destructively exit.
* Accuracy
Remove code that adjusted point locations. Instead,
offset the curve part so that sorted curves all use
the same origin.
Reduce the size (and influence) of magic numbers.
* Testing
The debug suite with verify and the full release suite
./out/Debug/pathops_unittest -v -V
./out/Release/pathops_unittest -v -V -x
expose one error. That error is captured as cubics_d3.
This error exists in the checked in code as well.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128633003
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128633003
Review-Url: https://codereview.chromium.org/2128633003
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Fail out in a couple of new places when the input data is very
large and exceeds the limits of the pathops machinery.
Most of the change here plumbs in a way to exclude an assert in
one of these exceptional cases. The current SkAddIntersection
implementation and the inner functions it calls has no way to
report an error to the root caller for an early exit, so rather
than add that in, exclude the assert when the test that would
trigger it runs (allowing the test to otherwise ensure that it
properly fails).
TBR=reed@google.com
BUG=617586,617635
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2046713003
Review-Url: https://codereview.chromium.org/2046713003
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DOCS_PREVIEW= https://skia.org/?cl=1316233002
Review URL: https://codereview.chromium.org/1316233002
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Mark collapsed segments as done and remove collapsed
segment references from the coincidence array.
Also add test names to global debugging.
R=fmalita@chromium.org
BUG=512592
Review URL: https://codereview.chromium.org/1250293002
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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
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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
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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
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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
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https://codereview.chromium.org/1033703002/)
Reason for revert:
working on asan fix
Original issue's description:
> fix destructor order to fix build
>
> TBR=reed
>
> Committed: https://skia.googlesource.com/skia/+/c207f9b2e8d6fb5386197fa8a8d258d2c4603418
TBR=reed@android.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1033803002
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TBR=reed
Review URL: https://codereview.chromium.org/1033703002
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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
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Implement path tight bounds using path ops machinery. This is not
as efficient as it could be; for instance, internally, it creates
a path ops structure more suited to intersection. If this shows
up as a performance bottleneck, it could be improved.
Fix path ops gyp files, which have fallen out of sync with other
tests.
R=mtklein@google.com, bsalomon@google.com
TBR=mtklein
BUG=skia:1712
Author: caryclark@google.com
Review URL: https://codereview.chromium.org/348343002
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caryclark
halcanary
reed