RESOLVED FIXED208828
Remove the special DisplayList handling in CanvasRenderingContext2DBase 
https://bugs.webkit.org/show_bug.cgi?id=208828
Summary Remove the special DisplayList handling in CanvasRenderingContext2DBase
Said Abou-Hallawa
Reported 2020-03-09 13:09:19 PDT
Recording the drawing commands and replaying them to the backend is already implemented and should be handled by DisplayList::ImageBuffer.
Attachments
Patch (6.93 KB, patch)
2020-03-09 13:10 PDT, Said Abou-Hallawa 		no flags
DetailsFormatted DiffDiff
Patch (9.51 KB, patch)
2020-03-09 17:24 PDT, Said Abou-Hallawa 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Said Abou-Hallawa
Comment 1 2020-03-09 13:10:51 PDT
Created attachment 393064 [details] Patch
Said Abou-Hallawa
Comment 2 2020-03-09 17:24:29 PDT
Created attachment 393096 [details] Patch
Myles C. Maxfield
Comment 3 2020-03-09 22:24:04 PDT
Comment on attachment 393096 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=393096&action=review > Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp:2062 > if (UNLIKELY(m_usesDisplayListDrawing)) { We should probably go farther and delete the whole thing, LayoutTests and all.
Said Abou-Hallawa
Comment 4 2020-03-10 09:50:50 PDT
Comment on attachment 393096 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=393096&action=review >> Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp:2062 >> if (UNLIKELY(m_usesDisplayListDrawing)) { > > We should probably go farther and delete the whole thing, LayoutTests and all. This DisplayList recording and replay back is used by CustomPaintCanvas, OffscreenCanvas and WebGLRenderingContextBase. A CanvasRenderingContext2DBase is created without an ImageBuffer. The drawing commands are recorded and later replayed back on the context of a temporary ImageBuffer. It will be nice if we can remove that. But at least for now I think it is okay to remove the code duplication.
WebKit Commit Bot
Comment 5 2020-03-10 10:52:12 PDT
Comment on attachment 393096 [details] Patch Clearing flags on attachment: 393096 Committed r258219: <https://trac.webkit.org/changeset/258219>
WebKit Commit Bot
Comment 6 2020-03-10 10:52:14 PDT
All reviewed patches have been landed. Closing bug.
Radar WebKit Bug Importer
Comment 7 2020-03-10 10:53:14 PDT
<rdar://problem/60279998>
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