[Webkit-unassigned] [Bug 17737] New: ASSERTION FAILED: info.bmBitsPixel == 32

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=17737

           Summary: ASSERTION FAILED: info.bmBitsPixel == 32
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: PC
               URL: http://www.edmondsun.com/opinion/local_story_067125346.h
                    tml
        OS/Version: Windows XP
            Status: NEW
          Keywords: PlatformOnly
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: webkit at mattlilek.com
                CC: aroben at apple.com


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]


-- 
Configure bugmail: http://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.