Trait wayland_client::protocol::wl_buffer::Handler
[−]
[src]
pub trait Handler {
fn release(&mut self, evqh: &mut EventQueueHandle, proxy: &WlBuffer) { ... }
}
Provided Methods
fn release(&mut self, evqh: &mut EventQueueHandle, proxy: &WlBuffer)
compositor releases buffer
Sent when this wl_buffer is no longer used by the compositor. The client is now free to reuse or destroy this buffer and its backing storage.
If a client receives a release event before the frame callback requested in the same wl_surface.commit that attaches this wl_buffer to a surface, then the client is immediately free to reuse the buffer and its backing storage, and does not need a second buffer for the next surface content update. Typically this is possible, when the compositor maintains a copy of the wl_surface contents, e.g. as a GL texture. This is an important optimization for GL(ES) compositors with wl_shm clients.