commit a338adcf222b6a24e26ea5ae6a2ad27f914acb38
author Bram Moolenaar <Bram@vim.org> Wed Jan 31 20:51:47 2018 +0100
committer Bram Moolenaar <Bram@vim.org> Wed Jan 31 20:51:47 2018 +0100
tree 0ffe28d0a3a60c2c1444a991514505c448d4335b
parent 37badc898b8d167e11553b6d05908ffd35928a6e

patch 8.0.1449: slow redrawing with DirectX

Problem:    Slow redrawing with DirectX.
Solution:   Avoid calling gui_mch_flush() unnecessarily, especially when
            updating the cursor. (Ken Takata, closes #2560)

src/channel.c

diff --git a/src/channel.c b/src/channel.c
index f7eded2..138b12e 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -2207,14 +2207,7 @@
 	ex_redraw(&ea);
 	showruler(FALSE);
 	setcursor();
-	out_flush();
-#ifdef FEAT_GUI
-	if (gui.in_use)
-	{
-	    gui_update_cursor(TRUE, FALSE);
-	    gui_mch_flush();
-	}
-#endif
+	out_flush_cursor(TRUE, FALSE);
     }
     else if (STRCMP(cmd, "expr") == 0 || STRCMP(cmd, "call") == 0)
     {