cosmic-comp/src/wayland/handlers/buffer.rs

// SPDX-License-Identifier: GPL-3.0-only

use crate::state::{BackendData, State};
use smithay::{
    reexports::wayland_server::{Resource, protocol::wl_buffer::WlBuffer},
    wayland::buffer::BufferHandler,
};
use tracing::warn;

impl BufferHandler for State {
    fn buffer_destroyed(&mut self, buffer: &WlBuffer) {
        if let BackendData::Kms(kms_state) = &mut self.backend {
            for device in kms_state.drm_devices.values_mut() {
                if device.inner.active_buffers.remove(&buffer.downgrade())
                    && !device
                        .inner
                        .in_use(kms_state.primary_node.read().unwrap().as_ref())
                {
                    if let Err(err) = kms_state.refresh_used_devices() {
                        warn!(?err, "Failed to init devices.");
                    };
                    break;
                }
            }
        }
    }
}