scene: drop wlr_scene_set_presentation()

include/wlr/types/wlr_scene.h

@@ -99,12 +99,10 @@ struct wlr_scene {
 	struct wl_list outputs; // wlr_scene_output.link
 
 	// May be NULL
-	struct wlr_presentation *presentation;
 	struct wlr_linux_dmabuf_v1 *linux_dmabuf_v1;
 
 	// private state
 
-	struct wl_listener presentation_destroy;
 	struct wl_listener linux_dmabuf_v1_destroy;
 
 	enum wlr_scene_debug_damage_option debug_damage_option;
@@ -303,15 +301,6 @@ struct wlr_scene_node *wlr_scene_node_at(struct wlr_scene_node *node,
  */
 struct wlr_scene *wlr_scene_create(void);
 
-/**
- * Handle presentation feedback for all surfaces in the scene, assuming that
- * scene outputs and the scene rendering functions are used.
- *
- * Asserts that a struct wlr_presentation hasn't already been set for the scene.
- */
-void wlr_scene_set_presentation(struct wlr_scene *scene,
-	struct wlr_presentation *presentation);
-
 /**
  * Handles linux_dmabuf_v1 feedback for all surfaces in the scene.
  *

types/scene/surface.c

@@ -48,11 +48,6 @@ static void handle_scene_buffer_output_sample(
 		return;
 	}
 
-	struct wlr_scene *root = scene_node_get_root(&surface->buffer->node);
-	if (!root->presentation) {
-		return;
-	}
-
 	if (event->direct_scanout) {
 		wlr_presentation_surface_scanned_out_on_output(surface->surface, scene_output->output);
 	} else {

types/scene/wlr_scene.c

@@ -123,7 +123,6 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
 				wlr_scene_output_destroy(scene_output);
 			}
 
-			wl_list_remove(&scene->presentation_destroy.link);
 			wl_list_remove(&scene->linux_dmabuf_v1_destroy.link);
 		} else {
 			assert(node->parent);
@@ -157,7 +156,6 @@ struct wlr_scene *wlr_scene_create(void) {
 	scene_tree_init(&scene->tree, NULL);
 
 	wl_list_init(&scene->outputs);
-	wl_list_init(&scene->presentation_destroy.link);
 	wl_list_init(&scene->linux_dmabuf_v1_destroy.link);
 
 	const char *debug_damage_options[] = {
@@ -1193,23 +1191,6 @@ static void scene_entry_render(struct render_list_entry *entry, const struct ren
 	pixman_region32_fini(&render_region);
 }
 
-static void scene_handle_presentation_destroy(struct wl_listener *listener,
-		void *data) {
-	struct wlr_scene *scene =
-		wl_container_of(listener, scene, presentation_destroy);
-	wl_list_remove(&scene->presentation_destroy.link);
-	wl_list_init(&scene->presentation_destroy.link);
-	scene->presentation = NULL;
-}
-
-void wlr_scene_set_presentation(struct wlr_scene *scene,
-		struct wlr_presentation *presentation) {
-	assert(scene->presentation == NULL);
-	scene->presentation = presentation;
-	scene->presentation_destroy.notify = scene_handle_presentation_destroy;
-	wl_signal_add(&presentation->events.destroy, &scene->presentation_destroy);
-}
-
 static void scene_handle_linux_dmabuf_v1_destroy(struct wl_listener *listener,
 		void *data) {
 	struct wlr_scene *scene =