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-rw-r--r--include/wlr/types/wlr_scene.h11
-rw-r--r--types/scene/wlr_scene.c21
2 files changed, 30 insertions, 2 deletions
diff --git a/include/wlr/types/wlr_scene.h b/include/wlr/types/wlr_scene.h
index 93be43d0..6c5194f8 100644
--- a/include/wlr/types/wlr_scene.h
+++ b/include/wlr/types/wlr_scene.h
@@ -95,6 +95,7 @@ struct wlr_scene_buffer {
struct wlr_texture *texture;
struct wlr_fbox src_box;
+ int dst_width, dst_height;
};
/** A viewport for an output in the scene-graph */
@@ -222,6 +223,16 @@ void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
const struct wlr_fbox *box);
/**
+ * Set the destination size describing the region of the scene-graph the buffer
+ * will be painted onto. This allows scaling the buffer.
+ *
+ * If zero, the destination size will be the buffer size. By default, the
+ * destination size is zero.
+ */
+void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
+ int width, int height);
+
+/**
* Add a viewport for the specified output to the scene-graph.
*
* An output can only be added once to the scene-graph.
diff --git a/types/scene/wlr_scene.c b/types/scene/wlr_scene.c
index 2d3dccde..f4aec1d8 100644
--- a/types/scene/wlr_scene.c
+++ b/types/scene/wlr_scene.c
@@ -283,6 +283,18 @@ void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
scene_node_damage_whole(&scene_buffer->node);
}
+void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
+ int width, int height) {
+ if (scene_buffer->dst_width == width && scene_buffer->dst_height == height) {
+ return;
+ }
+
+ scene_node_damage_whole(&scene_buffer->node);
+ scene_buffer->dst_width = width;
+ scene_buffer->dst_height = height;
+ scene_node_damage_whole(&scene_buffer->node);
+}
+
static struct wlr_texture *scene_buffer_get_texture(
struct wlr_scene_buffer *scene_buffer, struct wlr_renderer *renderer) {
struct wlr_client_buffer *client_buffer =
@@ -322,8 +334,13 @@ static void scene_node_get_size(struct wlr_scene_node *node,
break;
case WLR_SCENE_NODE_BUFFER:;
struct wlr_scene_buffer *scene_buffer = scene_buffer_from_node(node);
- *width = scene_buffer->buffer->width;
- *height = scene_buffer->buffer->height;
+ if (scene_buffer->dst_width > 0 && scene_buffer->dst_height > 0) {
+ *width = scene_buffer->dst_width;
+ *height = scene_buffer->dst_height;
+ } else {
+ *width = scene_buffer->buffer->width;
+ *height = scene_buffer->buffer->height;
+ }
break;
}
}