core: opacity_old should be double

Using opacity_t for opacity_old resulting in opacity being rounded to 0. This is fine until the opacity reaches 0, where the opacity != opacity_old check fails and the damage is not added. Signed-off-by: Yuxuan Shui <[email protected]>
yshui · Mar 27, 2019 · ff85c11 · ff85c11
1 parent a0d862d
commit ff85c11
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/compton.c b/src/compton.c
@@ -440,7 +440,7 @@ static win *paint_preprocess(session_t *ps, bool *fade_running) {
 		next = w->next;
 		const winmode_t mode_old = w->mode;
 		const bool was_painted = w->to_paint;
-		const opacity_t opacity_old = w->opacity;
+		const double opacity_old = w->opacity;
 
 		if (win_should_dim(ps, w) != w->dim) {
 			w->dim = win_should_dim(ps, w);