st-flexipatch

commit 24655590511877ace0775883b89b2e9bc4c5dddf
parent f7b0d77a03a2b39b96d05e91928df0ad8df0f49f
Author: bakkeby <bakkeby@gmail.com>
Date:   Thu, 16 Apr 2020 11:19:33 +0200

[st][PATCH] Update XIM cursor position only if changed

Updating XIM cursor position is expensive, so only update it when cursor
position changed.

Diffstat:
M
st.c
 | 
5
+++--

1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/st.c b/st.c
@@ -2735,7 +2735,7 @@ drawregion(int x1, int y1, int x2, int y2)
 void
 draw(void)
 {
-	int cx = term.c.x;
+	int cx = term.c.x, ocx = term.ocx, ocy = term.ocy;
 
 	if (!xstartdraw())
 		return;
@@ -2757,7 +2757,8 @@ draw(void)
 			term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
 	term.ocx = cx, term.ocy = term.c.y;
 	xfinishdraw();
-	xximspot(term.ocx, term.ocy);
+	if (ocx != term.ocx || ocy != term.ocy)
+		xximspot(term.ocx, term.ocy);
 }
 
 void