scene: add wlr_scene_buffer

This new scene-graph node displays a wlr_buffer.

Closes: https://github.com/swaywm/wlroots/issues/3161

1 files changed, 17 insertions, 0 deletions

diff --git a/include/wlr/types/wlr_scene.h b/include/wlr/types/wlr_scene.h
index 965782bf..7548bb3e 100644
--- a/include/wlr/types/wlr_scene.h
+++ b/include/wlr/types/wlr_scene.h
@@ -31,6 +31,7 @@ enum wlr_scene_node_type {
 	WLR_SCENE_NODE_TREE,
 	WLR_SCENE_NODE_SURFACE,
 	WLR_SCENE_NODE_RECT,
+	WLR_SCENE_NODE_BUFFER,
 };
 
 struct wlr_scene_node_state {
@@ -85,6 +86,16 @@ struct wlr_scene_rect {
 	float color[4];
 };
 
+/** A scene-graph node displaying a buffer */
+struct wlr_scene_buffer {
+	struct wlr_scene_node node;
+	struct wlr_buffer *buffer;
+
+	// private state
+
+	struct wlr_texture *texture;
+};
+
 /** A viewport for an output in the scene-graph */
 struct wlr_scene_output {
 	struct wlr_output *output;
@@ -195,6 +206,12 @@ void wlr_scene_rect_set_size(struct wlr_scene_rect *rect, int width, int height)
 void wlr_scene_rect_set_color(struct wlr_scene_rect *rect, const float color[static 4]);
 
 /**
+ * Add a node displaying a buffer to the scene-graph.
+ */
+struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_node *parent,
+	struct wlr_buffer *buffer);
+
+/**
  * Add a viewport for the specified output to the scene-graph.
  *
  * An output can only be added once to the scene-graph.