Details
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Bug
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Resolution: Done
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P1: Critical
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5.5.0
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Ubuntu 14.04 64-bit
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5762738fce7306120c1d93da84ef9c2693d95881
Description
The following code will crash if eeee9f1466ffaf17f81d635c2e43dca76ce5b021 is not reverted:
import QtQuick 2.2 import QtQuick.Controls 1.2 ApplicationWindow { id: window width: 640 height: 480 visible: true property real minimumValue: 0 property real maximumValue: 100 property real currentValue: 0 Timer { interval: 500 repeat: false running: true onTriggered: { var v = currentValue + 10 if (v > maximumValue) v = minimumValue currentValue = v } } Canvas { id: theCanvas anchors.fill: parent property real radius: 100 property real pct: (currentValue - minimumValue) / (maximumValue - minimumValue) onPctChanged: theCanvas.requestPaint() onPaint: { var ctx = theCanvas.getContext("2d") ctx.clearRect(0, 0, 2 * radius, 2 * radius) } } }
0 ?? 0x70 1 QSGOpaqueTextureMaterial::setTexture qsgtexturematerial.cpp 195 0x7fffe7439b4b 2 QSGSimpleTextureNode::setTexture qsgsimpletexturenode.cpp 229 0x7fffe7438c15 3 QQuickCanvasItem::updatePaintNode qquickcanvasitem.cpp 765 0x7fffe75dfdee 4 QQuickWindowPrivate::updateDirtyNode qquickwindow.cpp 2984 0x7fffe74b5a70 5 QQuickWindowPrivate::updateDirtyNodes qquickwindow.cpp 2722 0x7fffe74b4731 6 QQuickWindowPrivate::syncSceneGraph qquickwindow.cpp 341 0x7fffe74a853a 7 QSGRenderThread::sync qsgthreadedrenderloop.cpp 515 0x7fffe74736e4 8 QSGRenderThread::syncAndRender qsgthreadedrenderloop.cpp 561 0x7fffe7473bac 9 QSGRenderThread::run qsgthreadedrenderloop.cpp 677 0x7fffe7474814 10 QThreadPrivate::start qthread_unix.cpp 331 0x7ffff695cc27 11 start_thread /usr/lib/debug/lib/x86_64-linux-gnu/libpthread-2.19.so 312 0x7ffff56ae182 12 clone /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so 111 0x7ffff60ba47d
Attachments
For Gerrit Dashboard: QTBUG-47714 | ||||||
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# | Subject | Branch | Project | Status | CR | V |
123212,2 | Fix crash in QQuickCanvasItem::updatePaintNode() | 5.5 | qt/qtdeclarative | Status: MERGED | +2 | 0 |
123249,2 | Canvas: add a testcase for QSGSimpleTextureNode crash. | 5.5 | qt/qtdeclarative | Status: MERGED | +2 | 0 |