[Webkit-unassigned] [Bug 65063] REGRESSION(r91628): 3 canvas tests crash on Chromium Linux and one test fail on Chromium Mac

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Aug 1 14:47:57 PDT 2011


Tom Hudson <tomhudson at google.com> changed:

           What    |Removed                     |Added
                 CC|                            |tomhudson at google.com

--- Comment #10 from Tom Hudson <tomhudson at google.com>  2011-08-01 14:47:57 PST ---
With Chromium Linux 15.0.841.0 (WebKit r92135), drawingbuffer-test, canvas-bg-multiple-removal, and gl-enable-enum-test all run fine.

canvas-as-image-incremental-repaint.html crashes.

HTMLCanvasElement::didDraw() is attempting to call m_copiedImage.clear(). When it arrives at SkBitmap::~SkBitmap, the bitmap appears to be corrupt, with fColorTable = 0x1.

m_copiedImage is set validly in a call from CSSCanvasValue::image(). At this point, the Bitmap looks valid: 300x300, 1200 row bytes, NULL fColorTable, NULL fPixels, Config 6, BytesPerPixel 4.

BitmapImageSingleFrameSkia appears to have *two* SkBitmaps, named Native and Resized. When we enter HTMLCanvasElement::didDraw(), the m_nativeImage is unchanged, but the m_resizedImage - formerly all NULL - now has a fColorTable = 0x1.

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