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* fix pathops fuzzers and debuggingGravatar Cary Clark2018-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | En route to fixing fuzzer bugs, I discovered that most debugging in pathops was broken. Pathops has extensive runtime functions that trace links and connections between data structures that are invaluable to debugging. The only practical way to use these functions is to call them from the debugger in immediate mode. Some time, some where, the MSVS Immediate Window ceased to be able to call functions that are members of structs or classes, and functions that take templated parameters. I can find no mention of this on the web, so I assume that something about our setup is triggering this, but I've had no luck finding the culprit. In the meantime, I've added global functions wrapped in a namespace to sneak calls to these functions without MSVS being any the wiser. While this works, it is likely to bitrot by tomorrow or next Tuesday so I will continue to try to find and fix the root cause. This also fixes the fuzzer bugs; generally one-line edits that change asserts to fails. All pathops tests succeed with this. To run all tests, do: ./out/debug/pathops_unittest -V -x ./out/release/pathops_unittest -V -x TBR=caryclark@google.com Bug: skia: Change-Id: I956ae3d8df6d25e155e62bd6dede64519c7fbdb1 Reviewed-on: https://skia-review.googlesource.com/114321 Reviewed-by: Kevin Lubick <kjlubick@google.com> Reviewed-by: Cary Clark <caryclark@skia.org> Commit-Queue: Cary Clark <caryclark@skia.org>
* some fuzzer fixesGravatar Cary Clark2018-03-09
| | | | | | | | | | | | should fix three or four of the PathOp asserts triggered by the fuzzer tool. R=kjlubick@google.com Bug: skia: Change-Id: I470895addf1e922da6a7c41d44d54eca92e68fb6 Reviewed-on: https://skia-review.googlesource.com/113163 Reviewed-by: Kevin Lubick <kjlubick@google.com> Commit-Queue: Cary Clark <caryclark@skia.org>
* Revert "offset angle check edge in common"Gravatar Cary Clark2017-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit d2eb581ebc8f8009e80cccccd74d5b341ef5bd5b. Reason for revert: broke Google3 MSAN run of dm Original change's description: > offset angle check edge in common > > When curves cross, their intersection points may be nearby, but not exactly the same. > Sort the angles formed by the crossing curves when all angles don't have the same > origin. > > This sets up the framework to solve test case that currently fail (e.g., joel6) but > does not fix all related test cases (e.g., joel9). > > All older existing test cases, including extended tests, pass. > > Rework the test framework to better report when tests expected to produce failing > results now pass. > > Add new point and vector operations to support offset angles. > > TBR=reed@google.com > BUG=skia:6041 > > Change-Id: I67c651ded0a25e99ad93d55d6a35109b3ee3698e > Reviewed-on: https://skia-review.googlesource.com/6624 > Commit-Queue: Cary Clark <caryclark@google.com> > Reviewed-by: Cary Clark <caryclark@google.com> > TBR=caryclark@google.com,reviews@skia.org # Not skipping CQ checks because original CL landed > 1 day ago. BUG=skia:6041 Change-Id: I43db0808522ac44aceeb4f70e296167ea84a3663 Reviewed-on: https://skia-review.googlesource.com/7373 Commit-Queue: Cary Clark <caryclark@google.com> Reviewed-by: Cary Clark <caryclark@google.com>
* offset angle check edge in commonGravatar Cary Clark2017-01-20
| | | | | | | | | | | | | | | | | | | | | | | | When curves cross, their intersection points may be nearby, but not exactly the same. Sort the angles formed by the crossing curves when all angles don't have the same origin. This sets up the framework to solve test case that currently fail (e.g., joel6) but does not fix all related test cases (e.g., joel9). All older existing test cases, including extended tests, pass. Rework the test framework to better report when tests expected to produce failing results now pass. Add new point and vector operations to support offset angles. TBR=reed@google.com BUG=skia:6041 Change-Id: I67c651ded0a25e99ad93d55d6a35109b3ee3698e Reviewed-on: https://skia-review.googlesource.com/6624 Commit-Queue: Cary Clark <caryclark@google.com> Reviewed-by: Cary Clark <caryclark@google.com>
* fix more fuzz, carsvgGravatar caryclark2016-10-20
| | | | | | | | | | | | | Fix a few kevin-generated fuzzers. Remove an assert triggered by carsvg when thrown through the distance field stuff. TBR=reed@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2427253005 Review-Url: https://chromiumcodereview.appspot.com/2427253005
* fix more chrome asan fuzzer failuresGravatar caryclark2016-10-20
| | | | | | | | | | | | Small change to gracefully quit when fuzzer values cause pathops to fail. TBR=reed@google.com BUG=657411, 657559 GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2426393004 Review-Url: https://chromiumcodereview.appspot.com/2426393004
* fix cubic linear testGravatar caryclark2016-09-28
| | | | | | | | | | | | | | Check to see if the line between end points is degenerate before measuring control points. Also, add test case for a bug to see if it shows up on any platform. TBR=reed@google.com BUG=skia:5169, skia:5240 GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2375053002 Review-Url: https://codereview.chromium.org/2375053002
* -Wcomma may be good to go now.Gravatar Mike Klein2016-09-26
| | | | | | | | | | | | | This cleans up 3 remaining sites using , that probably meant ; BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2605 Change-Id: I5e48bcd85d72a205d2b0c860461dab1ec793dd18 Reviewed-on: https://skia-review.googlesource.com/2605 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Mike Klein <mtklein@chromium.org>
* split tight quads and conicsGravatar caryclark2016-09-23
| | | | | | | | | | | | Tight quads and conics may nearly fold over on themselves, confusing coincidence against other curves. Split them at their max curvature early on to avoid complicating later logic. TBR=reed@google.com BUG=skia:5131 GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2357353002 Review-Url: https://codereview.chromium.org/2357353002
* pathops coincident workGravatar caryclark2016-08-31
| | | | | | | | | | | | | This is working towards fixing all bugs around simplifying the tiger. This installment simplifies the point-t intersection list as it is built rather than doing the analysis once the intersections are complete. This avoids getting the list in an inconsistent state and makes coincident checks faster and more stable. GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2237223002 TBR=reed@google.com BUG=skia:5131 Review-Url: https://codereview.chromium.org/2237223002
* fix fuzzGravatar caryclark2016-08-17
| | | | | | | | TBR=reed@google.com BUG=638496 GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2250413002 Review-Url: https://codereview.chromium.org/2250413002
* pathops coincidence and security rewriteGravatar caryclark2016-07-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Now, path ops natively intersect conics, quads, and cubics in any ↵Gravatar caryclark2015-04-20
| | | | | | | | | | | 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
* cumulative pathops patchGravatar caryclark2015-03-26
| | | | | | | | | | | | | | | | | | | | | 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
* Revert of pathops version two (patchset #16 id:150001 of ↵Gravatar reed2015-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | 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
* pathops version twoGravatar caryclark2015-03-24
| | | | | | | | | | 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
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2014-04-15
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@14196 2bbb7eff-a529-9590-31e7-b0007b416f81
* Mike R: please sanity check SkPostConfig.hGravatar commit-bot@chromium.org2014-04-14
| | | | | | | | | | | | | | | | | | | | | | | | 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
* Cleanup: Sanitize the order of includes under tests/Gravatar tfarina@chromium.org2014-01-24
| | | | | | | | | | | | | | | | Initially this was to make sure Test.h appeared after the Sk*.h includes. Patch generated by the following command line: $ ~/chromium/src/tools/sort-headers.py tests/*.cpp BUG=None TEST=tests R=robertphillips@google.com Review URL: https://codereview.chromium.org/145313004 git-svn-id: http://skia.googlecode.com/svn/trunk@13177 2bbb7eff-a529-9590-31e7-b0007b416f81
* Move macros from TestClassDef.h to Test.hGravatar commit-bot@chromium.org2014-01-14
| | | | | | | | | | | | | | Motivation: those macros don't make any sense without the definitions in Test.h. BUG= R=mtklein@google.com Author: halcanary@google.com Review URL: https://codereview.chromium.org/138563004 git-svn-id: http://skia.googlecode.com/svn/trunk@13074 2bbb7eff-a529-9590-31e7-b0007b416f81
* Get rid of DEFINE_TESTCLASS_SHORT() macro.Gravatar tfarina@chromium.org2014-01-02
| | | | | | | | | | | | | Instead tests should be written using DEF_TEST() macro, which is much nicer and simplifies the process of setting up an unit test. BUG=None TEST=skpskgr_test, pathops_unittest R=mtklein@google.com Review URL: https://codereview.chromium.org/117863005 git-svn-id: http://skia.googlecode.com/svn/trunk@12870 2bbb7eff-a529-9590-31e7-b0007b416f81
* path ops work in progressGravatar caryclark@google.com2013-09-16
| | | | | | | | | | 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
* path ops -- disable fail test for nowGravatar caryclark@google.com2013-04-26
| | | | | | fail test fails on 32 bit platforms git-svn-id: http://skia.googlecode.com/svn/trunk@8884 2bbb7eff-a529-9590-31e7-b0007b416f81
* path ops -- handle non-finite numbersGravatar caryclark@google.com2013-04-26
Op() and Simplify() do nothing if the input is non-finite. Add code and tests. Review URL: https://codereview.chromium.org/14407006 git-svn-id: http://skia.googlecode.com/svn/trunk@8882 2bbb7eff-a529-9590-31e7-b0007b416f81
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