backend: create renderer and allocator in wlr_backend_autocreate

Instead of ensuring the renderer and allocator are initialized in each
backend, do it in wlr_backend_autocreate. This allows compositors to
create backends without any renderer/allocator if they side-step
wlr_backend_autocreate.

Since the wlr_backend_get_renderer and backend_get_allocator end up
calling wlr_renderer_autocreate and wlr_allocator_autocreate, it sounds
like a good idea to centralize all of the opimionated bits in one place.

1 files changed, 0 insertions, 7 deletions

diff --git a/backend/headless/backend.c b/backend/headless/backend.c
index 51217f8b..49c2c8ba 100644
--- a/backend/headless/backend.c
+++ b/backend/headless/backend.c
@@ -9,10 +9,8 @@
 #include <wlr/render/wlr_renderer.h>
 #include <wlr/util/log.h>
 #include <xf86drm.h>
-#include "backend/backend.h"
 #include "backend/headless.h"
 #include "render/drm_format_set.h"
-#include "render/wlr_renderer.h"
 #include "util/signal.h"
 
 struct wlr_headless_backend *headless_backend_from_backend(
@@ -137,11 +135,6 @@ static bool backend_init(struct wlr_headless_backend *backend,
 		wl_signal_add(&renderer->events.destroy, &backend->parent_renderer_destroy);
 	}
 
-	if (backend_get_allocator(&backend->backend) == NULL) {
-		wlr_log(WLR_ERROR, "Failed to create allocator");
-		return false;
-	}
-
 	backend->display_destroy.notify = handle_display_destroy;
 	wl_display_add_destroy_listener(display, &backend->display_destroy);