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	wlr_scene: Inline wlr_scene_node_state
This seems like nothing interesting was done with this. Let's simplify and allow us some flexibility in the future.
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					 2 changed files with 58 additions and 69 deletions
				
			
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			@ -46,20 +46,17 @@ enum wlr_scene_node_type {
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	WLR_SCENE_NODE_BUFFER,
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};
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struct wlr_scene_node_state {
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	struct wl_list link; // wlr_scene_node_state.children
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	struct wl_list children; // wlr_scene_node_state.link
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	bool enabled;
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	int x, y; // relative to parent
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};
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/** A node is an object in the scene. */
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struct wlr_scene_node {
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	enum wlr_scene_node_type type;
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	struct wlr_scene_tree *parent;
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	struct wlr_scene_node_state state;
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	struct wl_list link; // wlr_scene_node.children
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	struct wl_list children; // wlr_scene_node.link
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	bool enabled;
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	int x, y; // relative to parent
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	struct {
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		struct wl_signal destroy;
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			@ -48,27 +48,20 @@ struct wlr_scene *scene_node_get_root(struct wlr_scene_node *node) {
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	return (struct wlr_scene *)tree;
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}
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static void scene_node_state_init(struct wlr_scene_node_state *state) {
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	memset(state, 0, sizeof(*state));
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	wl_list_init(&state->children);
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	wl_list_init(&state->link);
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	state->enabled = true;
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}
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static void scene_node_state_finish(struct wlr_scene_node_state *state) {
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	wl_list_remove(&state->link);
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}
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static void scene_node_init(struct wlr_scene_node *node,
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		enum wlr_scene_node_type type, struct wlr_scene_tree *parent) {
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	memset(node, 0, sizeof(*node));
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	node->type = type;
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	node->parent = parent;
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	scene_node_state_init(&node->state);
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	node->enabled = true;
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	wl_list_init(&node->children);
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	wl_list_init(&node->link);
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	wl_signal_init(&node->events.destroy);
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	if (parent != NULL) {
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		wl_list_insert(parent->node.state.children.prev, &node->state.link);
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		wl_list_insert(parent->node.children.prev, &node->link);
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	}
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	wlr_addon_set_init(&node->addons);
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			@ -137,13 +130,12 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
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	}
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	struct wlr_scene_node *child, *child_tmp;
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	wl_list_for_each_safe(child, child_tmp,
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			&node->state.children, state.link) {
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	wl_list_for_each_safe(child, child_tmp, &node->children, link) {
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		wlr_scene_node_destroy(child);
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	}
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	wlr_addon_set_finish(&node->addons);
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	scene_node_state_finish(&node->state);
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	wl_list_remove(&node->link);
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	free(node);
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}
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			@ -250,9 +242,9 @@ static void _scene_node_update_outputs(
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	}
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	struct wlr_scene_node *child;
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	wl_list_for_each(child, &node->state.children, state.link) {
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		_scene_node_update_outputs(child, lx + child->state.x,
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			ly + child->state.y, scene);
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	wl_list_for_each(child, &node->children, link) {
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		_scene_node_update_outputs(child, lx + child->x,
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			ly + child->y, scene);
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	}
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}
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			@ -527,14 +519,14 @@ static void scale_box(struct wlr_box *box, float scale) {
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static void _scene_node_damage_whole(struct wlr_scene_node *node,
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		struct wlr_scene *scene, int lx, int ly) {
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	if (!node->state.enabled) {
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	if (!node->enabled) {
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		return;
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	}
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	struct wlr_scene_node *child;
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	wl_list_for_each(child, &node->state.children, state.link) {
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	wl_list_for_each(child, &node->children, link) {
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		_scene_node_damage_whole(child, scene,
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			lx + child->state.x, ly + child->state.y);
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			lx + child->x, ly + child->y);
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	}
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	int width, height;
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			@ -570,24 +562,24 @@ static void scene_node_damage_whole(struct wlr_scene_node *node) {
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}
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void wlr_scene_node_set_enabled(struct wlr_scene_node *node, bool enabled) {
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	if (node->state.enabled == enabled) {
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	if (node->enabled == enabled) {
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		return;
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	}
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	// One of these damage_whole() calls will short-circuit and be a no-op
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	scene_node_damage_whole(node);
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	node->state.enabled = enabled;
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	node->enabled = enabled;
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	scene_node_damage_whole(node);
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}
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void wlr_scene_node_set_position(struct wlr_scene_node *node, int x, int y) {
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	if (node->state.x == x && node->state.y == y) {
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	if (node->x == x && node->y == y) {
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		return;
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	}
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	scene_node_damage_whole(node);
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	node->state.x = x;
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	node->state.y = y;
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	node->x = x;
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	node->y = y;
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	scene_node_damage_whole(node);
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	scene_node_update_outputs(node);
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			@ -598,12 +590,12 @@ void wlr_scene_node_place_above(struct wlr_scene_node *node,
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	assert(node != sibling);
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	assert(node->parent == sibling->parent);
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	if (node->state.link.prev == &sibling->state.link) {
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	if (node->link.prev == &sibling->link) {
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		return;
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	}
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	wl_list_remove(&node->state.link);
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	wl_list_insert(&sibling->state.link, &node->state.link);
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	wl_list_remove(&node->link);
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	wl_list_insert(&sibling->link, &node->link);
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	scene_node_damage_whole(node);
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	scene_node_damage_whole(sibling);
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			@ -614,12 +606,12 @@ void wlr_scene_node_place_below(struct wlr_scene_node *node,
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	assert(node != sibling);
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	assert(node->parent == sibling->parent);
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	if (node->state.link.next == &sibling->state.link) {
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	if (node->link.next == &sibling->link) {
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		return;
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	}
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	wl_list_remove(&node->state.link);
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	wl_list_insert(sibling->state.link.prev, &node->state.link);
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	wl_list_remove(&node->link);
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	wl_list_insert(sibling->link.prev, &node->link);
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	scene_node_damage_whole(node);
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	scene_node_damage_whole(sibling);
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			@ -627,7 +619,7 @@ void wlr_scene_node_place_below(struct wlr_scene_node *node,
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void wlr_scene_node_raise_to_top(struct wlr_scene_node *node) {
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	struct wlr_scene_node *current_top = wl_container_of(
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		node->parent->node.state.children.prev, current_top, state.link);
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		node->parent->node.children.prev, current_top, link);
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	if (node == current_top) {
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		return;
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	}
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			@ -636,7 +628,7 @@ void wlr_scene_node_raise_to_top(struct wlr_scene_node *node) {
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void wlr_scene_node_lower_to_bottom(struct wlr_scene_node *node) {
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	struct wlr_scene_node *current_bottom = wl_container_of(
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		node->parent->node.state.children.next, current_bottom, state.link);
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		node->parent->node.children.next, current_bottom, link);
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	if (node == current_bottom) {
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		return;
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	}
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			@ -659,9 +651,9 @@ void wlr_scene_node_reparent(struct wlr_scene_node *node,
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	scene_node_damage_whole(node);
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	wl_list_remove(&node->state.link);
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	wl_list_remove(&node->link);
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	node->parent = new_parent;
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	wl_list_insert(new_parent->node.state.children.prev, &node->state.link);
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	wl_list_insert(new_parent->node.children.prev, &node->link);
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	scene_node_damage_whole(node);
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			@ -675,9 +667,9 @@ bool wlr_scene_node_coords(struct wlr_scene_node *node,
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	int lx = 0, ly = 0;
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	bool enabled = true;
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	while (true) {
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		lx += node->state.x;
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		ly += node->state.y;
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		enabled = enabled && node->state.enabled;
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		lx += node->x;
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		ly += node->y;
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		enabled = enabled && node->enabled;
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		if (node->parent == NULL) {
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			break;
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		}
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			@ -693,12 +685,12 @@ bool wlr_scene_node_coords(struct wlr_scene_node *node,
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static void scene_node_for_each_scene_buffer(struct wlr_scene_node *node,
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		int lx, int ly, wlr_scene_buffer_iterator_func_t user_iterator,
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		void *user_data) {
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	if (!node->state.enabled) {
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	if (!node->enabled) {
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		return;
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	}
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	lx += node->state.x;
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	ly += node->state.y;
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	lx += node->x;
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	ly += node->y;
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	if (node->type == WLR_SCENE_NODE_BUFFER) {
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		struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
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			@ -706,7 +698,7 @@ static void scene_node_for_each_scene_buffer(struct wlr_scene_node *node,
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	}
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	struct wlr_scene_node *child;
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	wl_list_for_each(child, &node->state.children, state.link) {
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	wl_list_for_each(child, &node->children, link) {
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		scene_node_for_each_scene_buffer(child, lx, ly, user_iterator, user_data);
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	}
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}
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			@ -718,16 +710,16 @@ void wlr_scene_node_for_each_buffer(struct wlr_scene_node *node,
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struct wlr_scene_node *wlr_scene_node_at(struct wlr_scene_node *node,
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		double lx, double ly, double *nx, double *ny) {
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	if (!node->state.enabled) {
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	if (!node->enabled) {
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		return NULL;
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	}
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	// TODO: optimize by storing a bounding box in each node?
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	lx -= node->state.x;
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	ly -= node->state.y;
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	lx -= node->x;
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	ly -= node->y;
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	struct wlr_scene_node *child;
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	wl_list_for_each_reverse(child, &node->state.children, state.link) {
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	wl_list_for_each_reverse(child, &node->children, link) {
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		struct wlr_scene_node *node =
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			wlr_scene_node_at(child, lx, ly, nx, ny);
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		if (node != NULL) {
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			@ -901,17 +893,17 @@ static void render_node_iterator(struct wlr_scene_node *node,
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static void scene_node_for_each_node(struct wlr_scene_node *node,
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		int lx, int ly, wlr_scene_node_iterator_func_t user_iterator,
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		void *user_data) {
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	if (!node->state.enabled) {
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	if (!node->enabled) {
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		return;
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	}
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	lx += node->state.x;
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	ly += node->state.y;
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	lx += node->x;
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	ly += node->y;
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	user_iterator(node, lx, ly, user_data);
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	struct wlr_scene_node *child;
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	wl_list_for_each(child, &node->state.children, state.link) {
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	wl_list_for_each(child, &node->children, link) {
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		scene_node_for_each_node(child, lx, ly, user_iterator, user_data);
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	}
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}
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			@ -1021,7 +1013,7 @@ static void scene_node_remove_output(struct wlr_scene_node *node,
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	}
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	struct wlr_scene_node *child;
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	wl_list_for_each(child, &node->state.children, state.link) {
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	wl_list_for_each(child, &node->children, link) {
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		scene_node_remove_output(child, output);
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	}
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}
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			@ -1300,7 +1292,7 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
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static void scene_node_send_frame_done(struct wlr_scene_node *node,
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		struct wlr_scene_output *scene_output, struct timespec *now) {
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	if (!node->state.enabled) {
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	if (!node->enabled) {
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		return;
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	}
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			@ -1314,7 +1306,7 @@ static void scene_node_send_frame_done(struct wlr_scene_node *node,
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	}
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	struct wlr_scene_node *child;
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	wl_list_for_each(child, &node->state.children, state.link) {
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	wl_list_for_each(child, &node->children, link) {
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		scene_node_send_frame_done(child, scene_output, now);
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	}
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}
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			@ -1328,12 +1320,12 @@ void wlr_scene_output_send_frame_done(struct wlr_scene_output *scene_output,
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static void scene_output_for_each_scene_buffer(const struct wlr_box *output_box,
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		struct wlr_scene_node *node, int lx, int ly,
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		wlr_scene_buffer_iterator_func_t user_iterator, void *user_data) {
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	if (!node->state.enabled) {
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	if (!node->enabled) {
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		return;
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	}
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	lx += node->state.x;
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	ly += node->state.y;
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	lx += node->x;
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	ly += node->y;
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	if (node->type == WLR_SCENE_NODE_BUFFER) {
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		struct wlr_box node_box = { .x = lx, .y = ly };
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			@ -1348,7 +1340,7 @@ static void scene_output_for_each_scene_buffer(const struct wlr_box *output_box,
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	}
 | 
			
		||||
 | 
			
		||||
	struct wlr_scene_node *child;
 | 
			
		||||
	wl_list_for_each(child, &node->state.children, state.link) {
 | 
			
		||||
	wl_list_for_each(child, &node->children, link) {
 | 
			
		||||
		scene_output_for_each_scene_buffer(output_box, child, lx, ly,
 | 
			
		||||
			user_iterator, user_data);
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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