svn commit: r257980 - user/ed/newcons/sys/dev/vt

[Aleksandr Rybalko]

Author: ray
Date: Mon Nov 11 12:26:35 2013
New Revision: 257980
URL: http://svnweb.freebsd.org/changeset/base/257980

Log:
  Eliminate call to vd_blank method, it is too expensive.
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  user/ed/newcons/sys/dev/vt/vt_core.c

Modified: user/ed/newcons/sys/dev/vt/vt_core.c
==============================================================================
--- user/ed/newcons/sys/dev/vt/vt_core.c	Mon Nov 11 12:24:17 2013	(r257979)
+++ user/ed/newcons/sys/dev/vt/vt_core.c	Mon Nov 11 12:26:35 2013	(r257980)
@@ -670,16 +670,6 @@ vt_flush(struct vt_device *vd)
 		tarea.tr_end = size;
 		tmask.vbm_row = tmask.vbm_col = VBM_DIRTY;
 
-		/*
-		 * Blank to prevent borders with artifacts.  This is
-		 * only required when the font doesn't exactly fill the
-		 * screen.
-		 */
-		if (vd->vd_flags & VDF_INVALID && vf != NULL &&
-		    (vd->vd_width % vf->vf_width != 0 ||
-		    vd->vd_height % vf->vf_height != 0))
-			vd->vd_driver->vd_blank(vd, TC_BLACK);
-
 		vd->vd_flags &= ~VDF_INVALID;
 	}