[Webkit-unassigned] [Bug 205339] New: [GTK][WPE] OffscreenCanvas worker tests that call drawImage crash in debug builds
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Dec 17 07:59:16 PST 2019
https://bugs.webkit.org/show_bug.cgi?id=205339
Bug ID: 205339
Summary: [GTK][WPE] OffscreenCanvas worker tests that call
drawImage crash in debug builds
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: Canvas
Assignee: webkit-unassigned at lists.webkit.org
Reporter: clord at igalia.com
CC: dino at apple.com, zimmermann at kde.org
Any test that calls OffscreenCanvasRenderingContext2D.drawImage inside a worker will crash in debug builds for the same reasons as the crashes fixed in bug 203884 (calling copyImage, which calls code that isn't safe to run off the main thread). Again, there's no actual need to go through this code path, so the fix is to just use the shorter path that doesn't involve unnecessarily creating an Image object. Patch almost done.
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