Bug 202455

Summary:	w3c/web-platform-tests/2dcontext/drawing-images-to-the-canvas/2d.drawImage.broken.html fails on Mac and iOS
Product:	WebKit	Reporter:	Chris Lord <clord>
Component:	Canvas	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED CONFIGURATION CHANGED
Severity:	Normal	CC:	bfulgham, dino, karlcow, sabouhallawa, simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	BrowserCompat, InRadar, WPTImpact
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:	179191
Bug Blocks:

Description Chris Lord 2019-10-02 05:53:26 PDT

This test fails on both MacOS and iOS with:

FAIL Canvas test: 2d.drawImage.broken assert_approx_equals: Green channel of the pixel at (50, 25) expected 255 +/- 2 but got 0

Comment 1 Karl Dubost 2023-01-12 23:42:27 PST

The test should throw, but it doesn't currently.

Firefox returns
 Uncaught DOMException: CanvasRenderingContext2D.drawImage: Passed-in image is "broken"


while Safari is completely silent and seems to just go with it. 

Probably something to explore around
https://searchfox.org/wubkat/rev/12fc92585a259a29b2522e7e902492be45a57b6a/Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp#1468-1492

Comment 2 Karl Dubost 2023-01-12 23:46:04 PST

In addition to 
https://wpt.fyi/results/html/canvas/element/drawing-images-to-the-canvas/2d.drawImage.broken.html

Probably this failure is very similar and could be fixed at the same time.
https://wpt.fyi/results/html/canvas/element/drawing-images-to-the-canvas/2d.drawImage.nonexistent.html

Comment 3 Radar WebKit Bug Importer 2024-02-08 15:14:53 PST

<rdar://problem/122586368>

Comment 4 Karl Dubost 2024-05-22 22:48:37 PDT

This now PASS.
https://wpt.fyi/results/html/canvas/element/drawing-images-to-the-canvas/2d.drawImage.broken.html?label=experimental&label=master&aligned

But this one needs to be fixed. Probably in a separate bug. 
https://wpt.fyi/results/html/canvas/element/drawing-images-to-the-canvas/2d.drawImage.nonexistent.html