# st

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    commit 72e3f6c7c05b4d5b56388508bb20a863aec279f5
    parent 33a9a456644ceb235ea6ce61282f3bdce7a8b547
    Author: Ivan Tham <pickfire@riseup.net>
    Date:   Sun, 19 Apr 2020 19:38:39 +0200

    Update XIM cursor position only if changed

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

    Diffstat:
    Mst.c | 9++++++---

    1 file changed, 6 insertions(+), 3 deletions(-)
    diff --git a/st.c b/st.c
    @@ -2571,6 +2571,7 @@ void
     drawregion(int x1, int y1, int x2, int y2)
     {
     	int y;
    +
     	for (y = y1; y < y2; y++) {
     		if (!term.dirty[y])
     			continue;
    @@ -2583,7 +2584,7 @@ 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;
    @@ -2599,9 +2600,11 @@ draw(void)
     	drawregion(0, 0, term.col, term.row);
     	xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
     			term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
    -	term.ocx = cx, term.ocy = term.c.y;
    +	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