[Webkit-unassigned] [Bug 41175] Some SVGs with empty <g> elements crash Chromium on Linux

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=41175





--- Comment #14 from Cosmin Truta <ctruta at chromium.org>  2010-07-13 14:30:00 PST ---
If I just do the chromium fix, there's another crash in Skia, which, remember, doesn't do zero-sized regions. I wouldn't mind seeing Skia augmented with this capability, though.

The ImageBufferSkia workaround consists of not drawing zero-sized regions at all. This is in the constructor WebCore::ImageBuffer::ImageBuffer(), which you can see in the stack trace below. More precisely, this is happening while calling drawARGB(), which is exactly the thing that I'm avoiding in my solution.

[16945:16945:527293672669:FATAL:third_party/skia/src/core/SkDraw.cpp(265)] third_party/skia/src/core/SkDraw.cpp:265: failed assertion "pixels"

Backtrace:
    StackTrace::StackTrace() [0x8bf2e6]
    logging::LogMessage::~LogMessage() [0x86354b]
    SkDebugf_FileLine() [0x7f2dd1]
    CallBitmapXferProc() [0x7a3d83]
    SkDraw::drawPaint() [0x7a3f8d]
    SkDevice::drawPaint() [0x7a3303]
    SkCanvas::drawPaint() [0x79e262]
    SkCanvas::drawARGB() [0x79f444]
    WebCore::ImageBuffer::ImageBuffer() [0x10478dd]
    WebCore::ImageBuffer::create() [0x10503fe]
    WebCore::RenderSVGResourceFilter::applyResource() [0x14d5aba]
    WebCore::SVGRenderSupport::prepareToRenderSVGContent() [0x14f262d]
    WebCore::RenderSVGContainer::paint() [0x1566708]
    [...snip...]

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