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scene: add wlr_scene_tree

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This commit is contained in:
Simon Ser 2021-08-20 11:25:02 +02:00 committed by Isaac Freund
parent ccc84f11a4
commit 211b3b760e
2 changed files with 34 additions and 2 deletions
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11
include/wlr/types/wlr_scene.h
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@ -28,6 +28,7 @@ struct wlr_output_layout;
enum wlr_scene_node_type {
WLR_SCENE_NODE_ROOT,
WLR_SCENE_NODE_TREE,
WLR_SCENE_NODE_SURFACE,
WLR_SCENE_NODE_RECT,
};
@ -61,6 +62,11 @@ struct wlr_scene {
struct wl_list outputs; // wlr_scene_output.link
};
/** A sub-tree in the scene-graph. */
struct wlr_scene_tree {
struct wlr_scene_node node;
};
/** A scene-graph node displaying a single surface. */
struct wlr_scene_surface {
struct wlr_scene_node node;
@ -157,6 +163,11 @@ struct wlr_scene *wlr_scene_create(void);
void wlr_scene_render_output(struct wlr_scene *scene, struct wlr_output *output,
int lx, int ly, pixman_region32_t *damage);
/**
* Add a node displaying nothing but its children.
*/
struct wlr_scene_tree *wlr_scene_tree_create(struct wlr_scene_node *parent);
/**
* Add a node displaying a single surface to the scene-graph.
*

25
types/scene/wlr_scene.c
View file

@ -15,6 +15,11 @@ static struct wlr_scene *scene_root_from_node(struct wlr_scene_node *node) {
return (struct wlr_scene *)node;
}
static struct wlr_scene_tree *scene_tree_from_node(struct wlr_scene_node *node) {
assert(node->type == WLR_SCENE_NODE_TREE);
return (struct wlr_scene_tree *)node;
}
struct wlr_scene_surface *wlr_scene_surface_from_node(
struct wlr_scene_node *node) {
assert(node->type == WLR_SCENE_NODE_SURFACE);
@ -84,6 +89,10 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
free(scene);
break;
case WLR_SCENE_NODE_TREE:;
struct wlr_scene_tree *tree = scene_tree_from_node(node);
free(tree);
break;
case WLR_SCENE_NODE_SURFACE:;
struct wlr_scene_surface *scene_surface = wlr_scene_surface_from_node(node);
wl_list_remove(&scene_surface->surface_destroy.link);
@ -106,6 +115,16 @@ struct wlr_scene *wlr_scene_create(void) {
return scene;
}
struct wlr_scene_tree *wlr_scene_tree_create(struct wlr_scene_node *parent) {
struct wlr_scene_tree *tree = calloc(1, sizeof(struct wlr_scene_tree));
if (tree == NULL) {
return NULL;
}
scene_node_init(&tree->node, WLR_SCENE_NODE_TREE, parent);
return tree;
}
static void scene_surface_handle_surface_destroy(struct wl_listener *listener,
void *data) {
struct wlr_scene_surface *scene_surface =
@ -246,6 +265,7 @@ static void _scene_node_damage_whole(struct wlr_scene_node *node,
int width = 0, height = 0;
switch (node->type) {
case WLR_SCENE_NODE_ROOT:
case WLR_SCENE_NODE_TREE:
return;
case WLR_SCENE_NODE_SURFACE:;
struct wlr_scene_surface *scene_surface =
@ -536,8 +556,9 @@ static void render_node_iterator(struct wlr_scene_node *node,
};
switch (node->type) {
case WLR_SCENE_NODE_ROOT:;
/* Root node has nothing to render itself */
case WLR_SCENE_NODE_ROOT:
case WLR_SCENE_NODE_TREE:
/* Root or tree node has nothing to render itself */
break;
case WLR_SCENE_NODE_SURFACE:;
struct wlr_scene_surface *scene_surface = wlr_scene_surface_from_node(node);