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1

Friday, December 16th 2011, 9:00am

Qt browser crashes when opening sites with Silverlight

Hi all

I've installed QT 4.8 and Silverlight 5.
I'm opening QT browser from ..\demos\browser\release
it crashes when opening sites with Silverlight (e.g., http://silverlight.vectorform.com/, http://demos.telerik.com/silverlight/)...

Any suggestion would be appreciated!

2

Friday, December 16th 2011, 10:02am

use a debugger.
If you have a problem, CUT and PASTE your code. Do not retype or simplify it. Give a COMPLETE and COMPILABLE example of your problem. Otherwise we are all guessing the problem from a fabrication where relevant details are often missing.

3

Friday, December 16th 2011, 10:18am

debugger crashes in line:
BLEND_SOURCE_OVER_ARGB32_SSE2(dst, src, w, nullVector, half, one, colorMask, alphaMask);
file qdrawhelper_sse2.cpp line 65


Call stack:
0 _mm_andnot_si128 emmintrin.h 1239 0xdd3e9d

1 qt_blend_argb32_on_argb32_sse2 qdrawhelper_sse2.cpp 65 0xdd3e9d
2 QRasterPaintEnginePrivate::drawImage qpaintengine_raster.cpp 1053 0xf850b3
3 QRasterPaintEngine::drawImage qpaintengine_raster.cpp 2453 0xf8bbdc
4 QRasterPaintEngine::drawPixmap qpaintengine_raster.cpp 2106 0xf897a2
5 QPainter::drawPixmap qpainter.cpp 5468 0xf1b2f7
6 QPainter::drawPixmap qpainter.h 879 0x15711f8
7 QStyle::drawItemPixmap qstyle.cpp 561 0x10810ee
8 QCommonStyle::drawControl qcommonstyle.cpp 1635 0x1097b53
9 QWindowsStyle::drawControl qwindowsstyle.cpp 2577 0x1167e7c
10 QWindowsXPStyle::drawControl qwindowsxpstyle.cpp 2429 0x10fe4a6
11 QWindowsVistaStyle::drawControl qwindowsvistastyle.cpp 1542 0x10ec090
12 QWindowsXPStyle::drawComplexControl qwindowsxpstyle.cpp 2914 0x11021d5
13 QWindowsVistaStyle::drawComplexControl qwindowsvistastyle.cpp 1928 0x10ef311
14 QStylePainter::drawComplexControl qstylepainter.h 94 0x146c1be
15 QToolButton::paintEvent qtoolbutton.cpp 553 0x1252141
16 QWidget::event qwidget.cpp 8507 0xe36b6b
17 QAbstractButton::event qabstractbutton.cpp 1080 0x117ec68
18 QToolButton::event qtoolbutton.cpp 1160 0x1253dc6
19 QApplicationPrivate::notify_helper qapplication.cpp 4550 0xdec020
20 QApplication::notify qapplication.cpp 4515 0xdebea1
21 QCoreApplication::notifyInternal qcoreapplication.cpp 876 0x6a213252
22 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 234 0x1480246
23 QWidgetPrivate::drawWidget qwidget.cpp 5584 0xe2f6bc
24 QWidgetPrivate::paintSiblingsRecursive qwidget.cpp 5793 0xe303fb
25 QWidgetPrivate::paintSiblingsRecursive qwidget.cpp 5780 0xe302bb
26 QWidgetPrivate::drawWidget qwidget.cpp 5637 0xe2fb07
27 QWidgetPrivate::paintSiblingsRecursive qwidget.cpp 5793 0xe303fb
28 QWidgetPrivate::paintSiblingsRecursive qwidget.cpp 5780 0xe302bb
29 QWidgetPrivate::paintSiblingsRecursive qwidget.cpp 5780 0xe302bb
30 QWidgetPrivate::drawWidget qwidget.cpp 5637 0xe2fb07

...




4

Friday, December 16th 2011, 2:32pm

have you got any other qt versions to test?

perhaps changing your visual theme/style might help (I have experienced a qt bug before to do with styles).
If you have a problem, CUT and PASTE your code. Do not retype or simplify it. Give a COMPLETE and COMPILABLE example of your problem. Otherwise we are all guessing the problem from a fabrication where relevant details are often missing.