Bug 17737

Summary:

ASSERTION FAILED: info.bmBitsPixel == 32

Product:

WebKit

Reporter:

Matt Lilek <dev+webkit>

Component:

WebCore Misc.

Assignee:

Per Arne Vollan <pvollan>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

achristensen, aroben, bfulgham, pvollan

Priority:

Keywords:

InRadar, PlatformOnly

Version:

528+ (Nightly build)

Hardware:

OS:

Windows XP

URL:

http://www.edmondsun.com/opinion/local_story_067125346.html

See Also:

https://bugs.webkit.org/show_bug.cgi?id=198323

Attachments:

Description	Flags
Patch	none
Patch	none
Patch	bfulgham: review+

Matt Lilek

Reported 2008-03-09 21:43:17 PDT

On Windows, I'm hitting this assert resizing the window with the URL in a background tab. 1. Load <http://reddit.com> 2. Right click and open the URL in a new tab (""God did it!" may soon be an acceptable answer to questions on a Science test in Oklahoma if this bill passes.") 3. Resize the window a bit (I believe until the tab in the background would not need horizontal scrollbars if it were visible) ASSERT(info.bmBitsPixel == 32); http://trac.webkit.org/projects/webkit/browser/trunk/WebCore/platform/graphics/win/GraphicsContextCGWin.cpp#L48 According to the debugger, info.bmBitsPixel is actually 1. > WebKit.dll!WebCore::CGContextWithHDC(HDC__ * hdc=0xc4010892) Line 48 + 0x22 bytes C++ WebKit.dll!WebCore::GraphicsContext::GraphicsContext(HDC__ * hdc=0xc4010892) Line 66 + 0x52 bytes C++ WebKit.dll!WebView::paintIntoBackingStore(WebCore::FrameView * frameView=0x01dc01f0, HDC__ * bitmapDC=0xc4010892, const WebCore::IntRect & dirtyRect={...}) Line 905 C++ WebKit.dll!WebView::updateBackingStore(WebCore::FrameView * frameView=0x01dc01f0, HDC__ * dc=0xc4010892, bool backingStoreCompletelyDirty=false) Line 798 + 0x1d bytes C++ WebKit.dll!WebView::scrollBackingStore(WebCore::FrameView * frameView=0x01dc01f0, int dx=0, int dy=9, const WebCore::IntRect & scrollViewRect={...}, const WebCore::IntRect & clipRect={...}) Line 721 C++ WebKit.dll!WebChromeClient::scrollBackingStore(int dx=0, int dy=9, const WebCore::IntRect & scrollViewRect={...}, const WebCore::IntRect & clipRect={...}) Line 431 C++ WebKit.dll!WebCore::Chrome::scrollBackingStore(int dx=0, int dy=9, const WebCore::IntRect & scrollViewRect={...}, const WebCore::IntRect & clipRect={...}) Line 299 + 0x28 bytes C++ WebKit.dll!WebCore::ScrollView::scrollBackingStore(int dx=0, int dy=9, const WebCore::IntRect & scrollViewRect={...}, const WebCore::IntRect & clipRect={...}) Line 829 C++ WebKit.dll!WebCore::ScrollView::ScrollViewPrivate::scrollBackingStore(const WebCore::IntSize & scrollDelta={...}) Line 167 C++ WebKit.dll!WebCore::ScrollView::ScrollViewPrivate::valueChanged(WebCore::Scrollbar * bar=0x04e8da18) Line 150 C++ WebKit.dll!WebCore::Scrollbar::setValue(int v=637) Line 60 + 0x1e bytes C++ WebKit.dll!WebCore::ScrollView::updateScrollbars(const WebCore::IntSize & desiredOffset={...}) Line 560 C++ WebKit.dll!WebCore::ScrollView::resizeContents(int w=1049, int h=1349) Line 285 C++ WebKit.dll!WebCore::FrameView::adjustViewSize() Line 257 + 0x47 bytes C++ WebKit.dll!WebCore::FrameView::layout(bool allowSubtree=true) Line 492 C++ WebKit.dll!WebCore::FrameView::layoutIfNeededRecursive() Line 1091 C++ WebKit.dll!WebView::updateBackingStore(WebCore::FrameView * frameView=0x01dc01f0, HDC__ * dc=0x61010d94, bool backingStoreCompletelyDirty=true) Line 786 C++ WebKit.dll!WebView::paint(HDC__ * dc=0x00000000, long options=0) Line 853 C++ WebKit.dll!WebViewWndProc(HWND__ * hWnd=0x00100246, unsigned int message=15, unsigned int wParam=0, long lParam=0) Line 1615 C++ user32.dll!7e418734() [Frames below may be incorrect and/or missing, no symbols loaded for user32.dll]

Attachments
Patch (2.25 KB, patch) 2016-07-01 02:32 PDT, Per Arne Vollan	no flags	Details Formatted Diff Diff
Patch (2.31 KB, patch) 2016-07-01 02:58 PDT, Per Arne Vollan	no flags	Details Formatted Diff Diff
Patch (2.30 KB, patch) 2016-07-01 03:01 PDT, Per Arne Vollan	bfulgham: review+	Details Formatted Diff Diff
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