Use wlr_surface.buffer_damage

1 files changed, 9 insertions, 3 deletions

diff --git a/sway/desktop/output.c b/sway/desktop/output.c
index a86c1646..1211cc07 100644
--- a/sway/desktop/output.c
+++ b/sway/desktop/output.c
@@ -1163,11 +1163,17 @@ static void damage_surface_iterator(struct wlr_surface *surface, int sx, int sy,
         int center_x = box.x + box.width/2;
         int center_y = box.y + box.height/2;
 
-        if (pixman_region32_not_empty(&surface->current.surface_damage)) {
+        if (pixman_region32_not_empty(&surface->buffer_damage)) {
+                enum wl_output_transform transform =
+                        wlr_output_transform_invert(surface->current.transform);
+
                 pixman_region32_t damage;
                 pixman_region32_init(&damage);
-                pixman_region32_copy(&damage, &surface->current.surface_damage);
-                wlr_region_scale(&damage, &damage, output->wlr_output->scale);
+                pixman_region32_copy(&damage, &surface->buffer_damage);
+                wlr_region_transform(&damage, &damage, transform,
+                        surface->current.buffer_width, surface->current.buffer_height);
+                wlr_region_scale(&damage, &damage,
+                        output->wlr_output->scale / (float)surface->current.scale);
                 if (ceil(output->wlr_output->scale) > surface->current.scale) {
                         // When scaling up a surface, it'll become blurry so we need to
                         // expand the damage region