Bug 275845

Summary: [Win] Do not downscale drawingArea size by deviceScaleFactor on resize
Product: WebKit Reporter: Vitaly Dyackhov <vitaly>
Component: WebKit2Assignee: Fujii Hironori <fujii>
Status: RESOLVED FIXED    
Severity: Normal CC: fujii, kkinnunen, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
WIP patch none

Vitaly Dyackhov
Reported 2024-06-25 02:39:23 PDT
The `WM_SIZE` message in the Windows API provides the new width and height of the client area in logical pixels, not physical pixels. This means that the size values provided by `WM_SIZE` are already adjusted for the device scale factor on high-DPI screens.
Attachments
WIP patch (1.60 KB, patch)
2024-06-25 13:40 PDT, Fujii Hironori 		no flags
DetailsFormatted DiffDiff
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Vitaly Dyackhov
Comment 1 2024-06-25 02:42:36 PDT
Pull request: https://github.com/WebKit/WebKit/pull/30142
Fujii Hironori
Comment 2 2024-06-25 13:40:50 PDT
Created attachment 471738 [details] WIP patch Windows WebKit Playwright is still using non-GPU process mode. We have to modify MiniBrowser to use non-GPU process mode in MiniBrowser for testing. This WIP patch fixes the viewport size problem for the non-GPU process mode for me.
Fujii Hironori
Comment 3 2024-06-28 15:23:58 PDT
Pull request: https://github.com/WebKit/WebKit/pull/30288
EWS
Comment 4 2024-07-01 14:02:24 PDT
Committed 280551@main (8d9d0b8a3afe): <https://commits.webkit.org/280551@main> Reviewed commits have been landed. Closing PR #30288 and removing active labels.
Radar WebKit Bug Importer
Comment 5 2024-07-01 14:03:15 PDT
<rdar://problem/130919566>
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