WebGL video to texture upload spends time clearing the uploaded-to texture
<rdar://problem/80020335>
Visible for content where big textures (4k, for example) are used. https://www.youtube.com/watch?v=HKNI658SKJ4
Created attachment 432690 [details] Patch
Comment on attachment 432690 [details] 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?
Committed r279624 (239442@main): <https://commits.webkit.org/239442@main>