[Webkit-unassigned] [Bug 236464] New: [GPU Process] Implement GraphicsContext::drawLineForText() in terms of GraphicsContext::drawLinesForText()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236464

            Bug ID: 236464
           Summary: [GPU Process] Implement
                    GraphicsContext::drawLineForText() in terms of
                    GraphicsContext::drawLinesForText()
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Currently DisplayListRecorder has the following implementation:

   void drawLineForText(const FloatRect&, bool, bool, StrokeStyle) final { ASSERT_NOT_REACHED(); }

This assertion fires when GPUProcess for DOM rendering is enabled:

SHOULD NEVER BE REACHED
/Volumes/Data/WebKit/OpenSource/WebKitBuild/Debug-iphonesimulator/WebCore.framework/PrivateHeaders/DisplayListRecorder.h(197) : virtual void WebCore::DisplayList::Recorder::drawLineForText(const WebCore::FloatRect &, bool, bool, WebCore::StrokeStyle)
1   0x769b62539 WTFCrash
2   0x74d5028ab WTFCrashWithInfo(int, char const*, char const*, int)
3   0x74f4ebe96 WebCore::DisplayList::Recorder::drawLineForText(WebCore::FloatRect const&, bool, bool, WebCore::StrokeStyle)
4   0x792665824 WebCore::TextDecorationPainter::paintLineThrough(WebCore::Color const&, float, WebCore::FloatPoint const&)
5   0x792664161 WebCore::TextDecorationPainter::paintForegroundDecorations(WebCore::FloatPoint const&)
6   0x79266289f WebCore::TextBoxPainter::paintForegroundDecorations(WebCore::TextDecorationPainter&, WebCore::FloatRect const&)
7   0x792661534 WebCore::TextBoxPainter::paintForegroundAndDecorations()
8   0x79266073f WebCore::TextBoxPainter::paint()
9   0x7917c3c85 WebCore::LayoutIntegration::LineLayout::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
10  0x792416094 WebCore::RenderBlockFlow::paintInlineChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
11  0x7923ed792 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
12  0x7923eeea2 WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
13  0x7923ed0a3 WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
14  0x7923edd14 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType)
15  0x7923ed950 WebCore::RenderBlock::paintChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool)
16  0x7923ed8b1 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
17  0x7923eeea2 WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
18  0x7923ed0a3 WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
19  0x7923edd14 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType)
20  0x7923ed950 WebCore::RenderBlock::paintChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool)
21  0x7923ed8b1 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
22  0x7923eeea2 WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
23  0x7923ed0a3 WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
24  0x79251ddda WebCore::RenderLayer::paintForegroundForFragmentsWithPhase(WebCore::PaintPhase, WTF::Vector<WebCore::LayerFragment, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::RenderObject*)
25  0x79251bbb5 WebCore::RenderLayer::paintForegroundForFragments(WTF::Vector<WebCore::LayerFragment, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebCore::GraphicsContext&, WebCore::GraphicsContext&, WebCore::LayoutRect const&, bool, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::RenderObject*)
26  0x792517493 WebCore::RenderLayer::paintLayerContents(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
27  0x792516931 WebCore::RenderLayer::paintLayerContentsAndReflection(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
28  0x79251585f WebCore::RenderLayer::paintLayerWithEffects(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
29  0x792514bb7 WebCore::RenderLayer::paintLayer(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
30  0x79251b566 WebCore::RenderLayer::paintList(WebCore::RenderLayer::LayerList, WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
31  0x7925175b9 WebCore::RenderLayer::paintLayerContents(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>)
com.apple.WebKit.WebContent.Development terminated (pid 39285) because the process crashed
#CRASHED - com.apple.WebKit.WebContent.Development (pid 39285)
LEAK: 2 WebProcessPool
LEAK: 2 WebPageProxy

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