227582 2021-07-01 06:04:24 -0700 WebGL video to texture upload spends time clearing the uploaded-to texture 2021-07-06 15:34:16 -0700 1 1 1 Unclassified WebKit WebGL WebKit Local Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 227585 1 kkinnunen kkinnunen dino ews-watchlist kbr kkinnunen kondapallykalyan simon.fraser webkit-bug-importer oldest_to_newest 1774083 0 kkinnunen 2021-07-01 06:04:24 -0700 WebGL video to texture upload spends time clearing the uploaded-to texture 1774084 1 webkit-bug-importer 2021-07-01 06:04:46 -0700 <rdar://problem/80020335> 1774094 2 kkinnunen 2021-07-01 06:40:06 -0700 Visible for content where big textures (4k, for example) are used. https://www.youtube.com/watch?v=HKNI658SKJ4 1774107 3 432690 kkinnunen 2021-07-01 08:04:13 -0700 Created attachment 432690 Patch 1774331 4 432690 kbr 2021-07-01 18:25:40 -0700 Comment on attachment 432690 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=432690&action=review Very nice investigation and work. r+ with one small comment. > Source/WebCore/platform/graphics/cocoa/GraphicsContextGLOpenGLCocoa.mm:271 > + // WebGL requires that all resources are cleared at creation. Could you add a comment here that performing robust resource initialization in the VideoTextureCopier adds a large amount of overhead? 1775123 5 dino 2021-07-06 15:34:16 -0700 Committed r279624 (239442@main): <https://commits.webkit.org/239442@main> 432690 2021-07-01 08:04:13 -0700 2021-07-01 18:25:40 -0700 Patch bug-227582-20210701180412.patch text/plain 8467 kkinnunen U3VidmVyc2lvbiBSZXZpc2lvbjogMjc5NDYxCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggMzhjYjk1NTE1MDQ4OGEx NjljMzUzYmJmNDMyYzNiOGIyNmZhMzVhNS4uMDk3OGFlNGJhYjAzZTE0ZGEzZjQyZDc3Zjc0ZTkw MzdkNWVkMjBmZSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDI5IEBACisyMDIxLTA3LTAxICBLaW1t byBLaW5udW5lbiAgPGtraW5udW5lbkBhcHBsZS5jb20+CisKKyAgICAgICAgV2ViR0wgdmlkZW8g dG8gdGV4dHVyZSB1cGxvYWQgc3BlbmRzIHRpbWUgY2xlYXJpbmcgdGhlIHVwbG9hZGVkLXRvIHRl eHR1cmUKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIy 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