49045 2010-11-04 18:26:06 -0700 LayoutTests/svg/animations/animate-path-nested-transforms.html causes assertion in debug mode. 2011-06-02 07:21:10 -0700 1 1 1 Unclassified WebKit SVG 528+ (Nightly build) Other OS X 10.5 RESOLVED FIXED P2 Normal --- 1 shanestephens rwlbuis dumi koivisto krit mdelaney7 mrobinson ossy pnormand rwlbuis simon.fraser zimmermann oldest_to_newest 305082 0 shanestephens 2010-11-04 18:26:06 -0700 LayoutTests/svg/animations/animate-path-nested-transforms.html causes assertion in debug mode. 305083 1 73024 shanestephens 2010-11-04 18:27:55 -0700 Created attachment 73024 Patch 305111 2 73024 dumi 2010-11-04 19:54:40 -0700 Comment on attachment 73024 Patch i don't think we should be changing the test (it's ok for it to fail for now, i added it to test_expectations). instead, we should try to find somebody familiar with this code and make them take a look at this issue and fix it. i'll try to find a good owner for this bug tomorrow, unless you want to do it. can you please describe the problem we're observing, and ideally, how it can be reproduced? 305113 3 dumi 2010-11-04 20:04:03 -0700 From http://code.google.com/p/chromium/issues/detail?id=61978: "OK, looks like there's a bug somewhere in the animation test framework that makes it nasty to ask for the location of stuff at 0.01 seconds if executing in debug mode." Antti, Simon, is this something you're familiar with? 305140 4 shanestephens 2010-11-04 21:54:08 -0700 More details: to use the animation framework you make a call like: function executeTest() { const expectedValues = [ ["animation", 0, "rect", startSample], ["animation", 0.1, "rect", startAnimateSample], ["animation", 1.00, "rect", endSample] ]; runAnimationTest(expectedValues); } I believe this uses a set of extra hooks into the SMILAnimation code (WebCore::SVGDocumentExtensions::sampleAnimationAtTime?) to exactly control the animation state. if the time value (here 0, 0.1 and 1.00) is 0.01, then in debug mode there's an assert in SVGSMILElement::progress here: if (elapsed < m_intervalBegin) { ASSERT(m_activeState != Active); if (m_activeState == Frozen && resultElement) updateAnimation(m_lastPercent, m_lastRepeat, resultElement); m_nextProgressTime = m_intervalBegin; return; } I didn't get a chance to characterize further than this. Hope this helps. 305845 5 mrobinson 2010-11-06 20:39:05 -0700 *** Bug 49065 has been marked as a duplicate of this bug. *** 307204 6 zimmermann 2010-11-10 00:16:47 -0800 (In reply to comment #4) > More details: to use the animation framework you make a call like: > > function executeTest() { > const expectedValues = [ > ["animation", 0, "rect", startSample], > ["animation", 0.1, "rect", startAnimateSample], > ["animation", 1.00, "rect", endSample] > ]; > > runAnimationTest(expectedValues); > } > > I believe this uses a set of extra hooks into the SMILAnimation code (WebCore::SVGDocumentExtensions::sampleAnimationAtTime?) to exactly control the animation state. Correct. > > if the time value (here 0, 0.1 and 1.00) is 0.01, then in debug mode there's an assert in SVGSMILElement::progress here: > > if (elapsed < m_intervalBegin) { > ASSERT(m_activeState != Active); > if (m_activeState == Frozen && resultElement) > updateAnimation(m_lastPercent, m_lastRepeat, resultElement); > m_nextProgressTime = m_intervalBegin; > return; > } > > I didn't get a chance to characterize further than this. Hope this helps. Thanks, I'll have a look at this as soon as I'll find some time. 307259 7 zimmermann 2010-11-10 02:10:18 -0800 This also affects the new testcase provided in bug 48215. 338749 8 krit 2011-01-23 14:25:26 -0800 I must have missed this bug. It should really get fixed :-P 338757 9 krit 2011-01-23 14:29:23 -0800 *** Bug 48987 has been marked as a duplicate of this bug. *** 352466 10 mrobinson 2011-02-16 16:59:15 -0800 Thanks for looking into this. Please remember to unskip svg/animations/animate-path-nested-transforms.html on GTK+ when you fix the issue. 413404 11 rwlbuis 2011-06-01 08:45:09 -0700 *** Bug 61798 has been marked as a duplicate of this bug. *** 413675 12 rwlbuis 2011-06-01 14:33:39 -0700 I think I know what goes wrong. First, the id value in the expected values is wrong for this test. That causes a change in this code section: (SMILTimeContainer::updateAnimations): SVGElement* targetElement = animation->targetElement(); // FIXME: This should probably be using getIdAttribute instead of idForStyleResolution. if (!targetElement || !targetElement->hasID() || targetElement->idForStyleResolution() != m_nextSamplingTarget) continue; samplingDiff = animation->intervalBegin(); Because these tests are only started on click, and intervalBegin() in that case is small but not 0, it is important for the later code calling progress to take this into account. Again, this is caused by a wrong id value in the expected results, as m_nextSamplingTarget will mismatch. For now I propose to just fix the tests. The only alternative I can think of is to give a warning or even assert when the id is not found at all? Cheers, Rob. 413704 13 95674 rwlbuis 2011-06-01 15:22:13 -0700 Created attachment 95674 Patch 413744 14 95674 zimmermann 2011-06-01 16:21:43 -0700 Comment on attachment 95674 Patch Good catch, r=me. 414094 15 rwlbuis 2011-06-02 07:21:10 -0700 Committed r87907: <http://trac.webkit.org/changeset/87907> 73024 2010-11-04 18:27:55 -0700 2011-06-01 15:22:01 -0700 Patch bug-49045-20101104182752.patch text/plain 3614 shanestephens ZGlmZiAtLWdpdCBhL0xheW91dFRlc3RzL0NoYW5nZUxvZyBiL0xheW91dFRlc3RzL0NoYW5nZUxv ZwppbmRleCBjM2IxZWJjMGE3YTIxNWZlZDg1MjUwYjcyNjI3NmVlZGJmYWM3MDM2Li5iZjdlNGM1 NDVhYTU4ZjNhYTZiNmYzMGJiY2M0MTAyNzVhYWU0OWIxIDEwMDY0NAotLS0gYS9MYXlvdXRUZXN0 cy9DaGFuZ2VMb2cKKysrIGIvTGF5b3V0VGVzdHMvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsMTggQEAK KzIwMTAtMTEtMDQgIFNoYW5lIFN0ZXBoZW5zICA8c2hhbmVzdGVwaGVuc0Bnb29nbGUuY29tPgor CisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIExheW91dFRl c3RzL3N2Zy9hbmltYXRpb25zL2FuaW1hdGUtcGF0aC1uZXN0ZWQtdHJhbnNmb3Jtcy5odG1sIGNh 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