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Micro-optimize 8-bit blanking. This is the same as in ofw_syscons.

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Reviewed by:	ray
MFC after:	1 week
This commit is contained in:
Justin Hibbits 2014-01-29 15:50:01 +00:00
parent 3cbf3585cb
commit 17661cc725
1 changed files with 7 additions and 5 deletions
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12
sys/dev/vt/hw/ofwfb/ofwfb.c
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@ -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: