Add FlViewRendererSubsurface#2
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Add a Wayland subsurface based view renderer that blits engine frames directly to a subsurface using an EGL context that shares resources with the engine. The EGL context and window surface are managed by a new FlSubsurfaceEGL class, and window resizing is synchronized with the subsurface so the two stay in step. Add FlSubsurface, expose the engine's EGL display and context through FlOpenGLManager, wire up the wayland-client and wayland-egl build configs, and select the renderer via the FLUTTER_LINUX_USE_SUBSURFACE environment variable when running on Wayland.
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Add a Wayland subsurface based view renderer that blits engine frames directly to a subsurface using an EGL context that shares resources with the engine. The EGL context and window surface are managed by a new FlSubsurfaceEGL class, and window resizing is synchronized with the subsurface so the two stay in step.
Add FlSubsurface, expose the engine's EGL display and context through FlOpenGLManager, wire up the wayland-client and wayland-egl build configs, and select the renderer via the FLUTTER_LINUX_USE_SUBSURFACE environment variable when running on Wayland.