Window flickers on resize when rendering video with libmpv and Glutin.

[nini22P]

Hello everyone,

I'm trying to render video frames from libmpv onto a Tauri window. My approach is to use glutin to create an OpenGL context directly on the WebView window.

Current Situation:

Video playback starts and renders correctly.

However, as soon as I try to resize the window, the entire window content starts to flicker.

You can see a screen recording of the issue here:

2025-09-29.mp4

Example:

https://github.com/nini22P/tauri-libmpv-render-test

Question:

What is the correct way to manage an OpenGL surface with glutin on a Tauri window to avoid this flickering during resize? Is there a specific way I need to handle surface recreation or synchronize with Tauri's event loop?

Any help or guidance would be greatly appreciated. Thank you!