Merge pull request #2825 from RyanDwyer/fractional-scale-pixel-leaks

Fix pixel leaks when using fractional scaling

1 files changed, 8 insertions, 4 deletions

diff --git a/sway/desktop/output.c b/sway/desktop/output.c
index adc1ee10..fc52dd28 100644
--- a/sway/desktop/output.c
+++ b/sway/desktop/output.c
@@ -223,11 +223,15 @@ void output_drag_icons_for_each_surface(struct sway_output *output,
 	}
 }
 
+static int scale_length(int length, int offset, float scale) {
+	return round((offset + length) * scale) - round(offset * scale);
+}
+
 static void scale_box(struct wlr_box *box, float scale) {
-	box->x *= scale;
-	box->y *= scale;
-	box->width *= scale;
-	box->height *= scale;
+	box->width = scale_length(box->width, box->x, scale);
+	box->height = scale_length(box->height, box->y, scale);
+	box->x = round(box->x * scale);
+	box->y = round(box->y * scale);
 }
 
 struct sway_workspace *output_get_active_workspace(struct sway_output *output) {