2 files changed, 24 insertions, 6 deletions

diff --git a/rootston/README.md b/rootston/README.md
new file mode 100644
index 00000000..be2e6698
--- /dev/null
+++ b/rootston/README.md
@@ -0,0 +1,18 @@
+# rootston
+
+Rootston is the "big" wlroots test compositor. It implements basically every
+feature of wlroots and may be useful as a reference for new compositors.
+However, it's mostly used as a testbed for wlroots development and does not have
+particularly clean code and is not particularly well designed: proceed with a
+grain of salt. It is not designed for end-users.
+
+## Running rootston
+
+If you followed the build instructions in `../README.md`, the rootston
+executable can be found at `build/rootston/rootston`. To use it, refer to the
+example config at [rootston/rootston.ini.example][rootston.ini] and place a
+config file of your own at `rootston.ini` in the working directory (or in an
+arbitrary location via `rootston -C`). Other options are available, refer to
+`rootston -h`.
+
+[rootston.ini]: https://github.com/swaywm/wlroots/blob/master/rootston/rootston.ini.example
diff --git a/rootston/output.c b/rootston/output.c
index 5819833b..f950d4dc 100644
--- a/rootston/output.c
+++ b/rootston/output.c
@@ -217,7 +217,7 @@ static bool surface_intersect_output(struct wlr_surface *surface,
 		.x = lx, .y = ly,
 		.width = surface->current.width, .height = surface->current.height,
 	};
-	wlr_box_rotated_bounds(&layout_box, rotation, &layout_box);
+	wlr_box_rotated_bounds(&layout_box, &layout_box, rotation);
 	return wlr_output_layout_intersects(output_layout, wlr_output, &layout_box);
 }
 
@@ -238,7 +238,7 @@ static void scissor_output(struct roots_output *output, pixman_box32_t *rect) {
 
 	enum wl_output_transform transform =
 		wlr_output_transform_invert(wlr_output->transform);
-	wlr_box_transform(&box, transform, ow, oh, &box);
+	wlr_box_transform(&box, &box, transform, ow, oh);
 
 	wlr_renderer_scissor(renderer, &box);
 }
@@ -269,7 +269,7 @@ static void render_surface(struct wlr_surface *surface, int sx, int sy,
 	}
 
 	struct wlr_box rotated;
-	wlr_box_rotated_bounds(&box, rotation, &rotated);
+	wlr_box_rotated_bounds(&rotated, &box, rotation);
 
 	pixman_region32_t damage;
 	pixman_region32_init(&damage);
@@ -335,7 +335,7 @@ static void render_decorations(struct roots_view *view,
 	get_decoration_box(view, output, &box);
 
 	struct wlr_box rotated;
-	wlr_box_rotated_bounds(&box, view->rotation, &rotated);
+	wlr_box_rotated_bounds(&rotated, &box, view->rotation);
 
 	pixman_region32_t damage;
 	pixman_region32_init(&damage);
@@ -605,7 +605,7 @@ static void damage_whole_surface(struct wlr_surface *surface, int sx, int sy,
 		return;
 	}
 
-	wlr_box_rotated_bounds(&box, rotation, &box);
+	wlr_box_rotated_bounds(&box, &box, rotation);
 
 	wlr_output_damage_add_box(output->damage, &box);
 }
@@ -628,7 +628,7 @@ static void damage_whole_decoration(struct roots_view *view,
 	struct wlr_box box;
 	get_decoration_box(view, output, &box);
 
-	wlr_box_rotated_bounds(&box, view->rotation, &box);
+	wlr_box_rotated_bounds(&box, &box, view->rotation);
 
 	wlr_output_damage_add_box(output->damage, &box);
 }