Bug 287004

Summary:

When Manipulating image data of canvas, it leaves blank spots on canvas.

Product:

WebKit

Reporter:

robhov97

Component:

Canvas

Assignee:

Nobody <webkit-unassigned>

Status:

NEW

Severity:

Normal

CC:

mattwoodrow, sabouhallawa, simon.fraser, webkit-bug-importer

Priority:

Keywords:

CanvaBug, InRadar

Version:

WebKit Nightly Build

Hardware:

All

OS:

All

Attachments:

Description	Flags
Attachment	none

robhov97

Reported 2025-02-04 01:56:45 PST

Created attachment 474132 [details] Attachment In following attachment you can see the pixels that I tried to manipulate in Safari. Expected result should be the whole red layer on top of the image, but instead I get an image with some weird pattern. like it missed to put some pixels.

Attachments
Attachment (4.18 MB, image/png) 2025-02-04 01:56 PST, robhov97	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Simon Fraser (smfr)

Comment 1 2025-02-10 11:55:33 PST

Thanks for the report. We'll need to be able to reproduce the issue to debug; can you provide a test case, or a link to a page where we can test?

Radar WebKit Bug Importer

Comment 2 2025-02-11 01:57:15 PST

<rdar://problem/144601172>

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