Author: jhibbits
Date: Wed Jan 29 15:50:01 2014
New Revision: 261269
URL: http://svnweb.freebsd.org/changeset/base/261269
Log:
Micro-optimize 8-bit blanking. This is the same as in ofw_syscons.
Reviewed by: ray
MFC after: 1 week
Modified:
head/sys/dev/vt/hw/ofwfb/ofwfb.c (contents, props changed)
Modified: head/sys/dev/vt/hw/ofwfb/ofwfb.c
==============================================================================
--- head/sys/dev/vt/hw/ofwfb/ofwfb.c Wed Jan 29 14:56:48 2014
(r261268)
+++ head/sys/dev/vt/hw/ofwfb/ofwfb.c Wed Jan 29 15:50:01 2014
(r261269)
@@ -25,7 +25,7 @@
*/
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: user/ed/newcons/sys/dev/vt/hw/ofwfb/ofwfb.c 219888
2011-03-22 21:31:31Z ed $");
+__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/kernel.h>
@@ -78,17 +78,19 @@ static void
ofwfb_blank(struct vt_device *vd, term_color_t color)
{
struct ofwfb_softc *sc = vd->vd_softc;
- u_int ofs;
+ u_int ofs, size;
uint32_t c;
+ size = sc->sc_stride * vd->vd_height;
switch (sc->sc_depth) {
case 8:
- for (ofs = 0; ofs < sc->sc_stride*vd->vd_height; ofs++)
- *(uint8_t *)(sc->sc_addr + ofs) = color;
+ c = (color << 24) | (color << 16) | (color << 8) | color;
+ for (ofs = 0; ofs < size/4; ofs++)
+ *(uint32_t *)(sc->sc_addr + 4*ofs) = c;
break;
case 32:
c = sc->sc_colormap[color];
- for (ofs = 0; ofs < sc->sc_stride*vd->vd_height; ofs++)
+ for (ofs = 0; ofs < size; ofs++)
*(uint32_t *)(sc->sc_addr + 4*ofs) = c;
break;
default:
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