[WinCairo] Resizing window causes rendering glitches in accelerated compositing mode 1. Start WinCairo MiniBrowser of WebKit1 or WebKit2 2. Go to accelerated compositing mode page. For example, https://webkit.org/ and https://webkit.org/blog-files/3d-transforms/perspective-by-example.html 3. Resize the browser window wider and narrower 4. The content are distorted temporarily. This issue happens both for WK1 and WK2 of WinCairo. But, I think they aren't exactly same issue because of WK2's cross-process painting.
Reported the bug to upsteam ANGLE. 4665 - D3D11: Resizing window is causing rendering gliches - angleproject https://crbug.com/angleproject/4665
Created attachment 401499 [details] [Patch] eglWaitNative workaround for WebKit1 eglWaitNative workaround works only for WebKit1. https://bugs.chromium.org/p/angleproject/issues/detail?id=4665#c2
Created attachment 401500 [details] [Patch] ANGLE_window_fixed_size ANGLE has ANGLE_window_fixed_size extension. It was introduced in the following bug. 320021 - Chrome renders window incorrectly on restore from minimize. - chromium https://bugs.chromium.org/p/chromium/issues/detail?id=320021 I tried ANGLE_window_fixed_size extension in WinCairo WK1 and WK2, but it doesn't solve the bug.