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wlr_scene: Make scene_tree_from_node public 

This is to allow for compositors that want to be more implicit about
how their scene is organized. Such a compositor may want to walk up
at a certain scene node to find something such as a surface to focus on.
This commit is contained in:
Alexander Orzechowski 2022-06-05 13:06:18 -04:00 committed by Simon Ser
parent 61c157269e
commit 88f80c4a7c
2 changed files with 16 additions and 10 deletions
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6
include/wlr/types/wlr_scene.h
View File

@ -323,6 +323,12 @@ struct wlr_scene_surface *wlr_scene_surface_create(struct wlr_scene_tree *parent
*/
struct wlr_scene_buffer *wlr_scene_buffer_from_node(struct wlr_scene_node *node);
/**
* If this node represents a wlr_scene_tree, that tree will be returned. It
* is not legal to feed a node that does not represent a wlr_scene_tree.
*/
struct wlr_scene_tree *wlr_scene_tree_from_node(struct wlr_scene_node *node);
/**
* If this buffer is backed by a surface, then the struct wlr_scene_surface is
* returned. If not, NULL will be returned.

20
types/scene/wlr_scene.c
View File

@ -21,7 +21,7 @@
#define HIGHLIGHT_DAMAGE_FADEOUT_TIME 250
static struct wlr_scene_tree *scene_tree_from_node(struct wlr_scene_node *node) {
struct wlr_scene_tree *wlr_scene_tree_from_node(struct wlr_scene_node *node) {
assert(node->type == WLR_SCENE_NODE_TREE);
struct wlr_scene_tree *tree = wl_container_of(node, tree, node);
return tree;
@ -44,7 +44,7 @@ struct wlr_scene_buffer *wlr_scene_buffer_from_node(
struct wlr_scene *scene_node_get_root(struct wlr_scene_node *node) {
struct wlr_scene_tree *tree;
if (node->type == WLR_SCENE_NODE_TREE) {
tree = scene_tree_from_node(node);
tree = wlr_scene_tree_from_node(node);
} else {
tree = node->parent;
}
@ -112,7 +112,7 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
wlr_buffer_unlock(scene_buffer->buffer);
pixman_region32_fini(&scene_buffer->opaque_region);
} else if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
if (scene_tree == &scene->tree) {
assert(!node->parent);
@ -197,7 +197,7 @@ static bool _scene_nodes_in_box(struct wlr_scene_node *node, struct wlr_box *box
switch (node->type) {
case WLR_SCENE_NODE_TREE:;
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each_reverse(child, &scene_tree->children, link) {
if (_scene_nodes_in_box(child, box, iterator, user_data, lx + child->x, ly + child->y)) {
@ -455,7 +455,7 @@ static void scene_node_visibility(struct wlr_scene_node *node,
}
if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each(child, &scene_tree->children, link) {
scene_node_visibility(child, visible);
@ -473,7 +473,7 @@ static void scene_node_bounds(struct wlr_scene_node *node,
}
if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each(child, &scene_tree->children, link) {
scene_node_bounds(child, x + child->x, y + child->y, visible);
@ -990,7 +990,7 @@ static void scene_node_for_each_scene_buffer(struct wlr_scene_node *node,
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
user_iterator(scene_buffer, lx, ly, user_data);
} else if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each(child, &scene_tree->children, link) {
scene_node_for_each_scene_buffer(child, lx, ly, user_iterator, user_data);
@ -1185,7 +1185,7 @@ static const struct wlr_addon_interface output_addon_impl = {
static void scene_node_output_update(struct wlr_scene_node *node,
struct wl_list *outputs, struct wlr_scene_output *ignore) {
if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each(child, &scene_tree->children, link) {
scene_node_output_update(child, outputs, ignore);
@ -1792,7 +1792,7 @@ static void scene_node_send_frame_done(struct wlr_scene_node *node,
wlr_scene_buffer_send_frame_done(scene_buffer, now);
}
} else if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each(child, &scene_tree->children, link) {
scene_node_send_frame_done(child, scene_output, now);
@ -1827,7 +1827,7 @@ static void scene_output_for_each_scene_buffer(const struct wlr_box *output_box,
user_iterator(scene_buffer, lx, ly, user_data);
}
} else if (node->type == WLR_SCENE_NODE_TREE) {
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
struct wlr_scene_tree *scene_tree = wlr_scene_tree_from_node(node);
struct wlr_scene_node *child;
wl_list_for_each(child, &scene_tree->children, link) {
scene_output_for_each_scene_buffer(output_box, child, lx, ly,