backend/headless: add support for direct scan-out
I was about to add a check to fail instead of crash when the compositor
uses direct scan-out, but with renderer v6 it's so simple to just add
support for direct scan-out, why bother?
Closes:
@@ -91,17 +91,27 @@ static bool output_commit(struct wlr_output *wlr_output) {
}
if (wlr_output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
+ struct wlr_buffer *buffer = NULL;
+ switch (wlr_output->pending.buffer_type) {
+ case WLR_OUTPUT_STATE_BUFFER_RENDER:
assert(output->back_buffer != NULL);
wlr_renderer_bind_buffer(output->backend->renderer, NULL);
wlr_egl_unset_current(output->backend->egl);
- wlr_buffer_unlock(output->front_buffer);
- output->front_buffer = output->back_buffer;
+ buffer = output->back_buffer;
output->back_buffer = NULL;
+ break;
+ case WLR_OUTPUT_STATE_BUFFER_SCANOUT:
+ buffer = wlr_buffer_lock(wlr_output->pending.buffer);
+ break;
+ }
+ assert(buffer != NULL);
+
+ wlr_buffer_unlock(output->front_buffer);
+ output->front_buffer = buffer;
- wlr_swapchain_set_buffer_submitted(output->swapchain,
- output->front_buffer);
+ wlr_swapchain_set_buffer_submitted(output->swapchain, buffer);
wlr_output_send_present(wlr_output, NULL);
}
