Commit c54c16d353f206162cdbb125c0847b4645e096a3
2021-04-30T13:19:36
wayland: don't hang in SDL_GL_SwapBuffers if the compositor is ghosting us. If you hide a window on Mutter, for example, the compositor never requests new frames, which will cause Mesa to block forever in eglSwapBuffers to satisfy the swap interval. We now always set the swap interval to 0 and manage this ourselves, handing the frame to Wayland when it requests a new one, and timing out at 10fps just to keep apps moving if the compositor wants no frames at all. My understanding is that other protocols are coming that might improve upon this solution, but for now it solves the total hang. Fixes #4335.