[src/trunk]: src/sys/dev/rasops use memset() to clear character cells instead...

[macallan <macallan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/057db4bc3b66
branches:  trunk
changeset: 773053:057db4bc3b66
user:      macallan <macallan%NetBSD.org@localhost>
date:      Wed Jan 25 20:18:04 2012 +0000

description:
use memset() to clear character cells instead of being terribly slow

diffstat:

 sys/dev/rasops/rasops8.c |  30 +++++++++---------------------
 1 files changed, 9 insertions(+), 21 deletions(-)

diffs (71 lines):

diff -r 3ccfb6342401 -r 057db4bc3b66 sys/dev/rasops/rasops8.c
--- a/sys/dev/rasops/rasops8.c  Wed Jan 25 19:47:18 2012 +0000
+++ b/sys/dev/rasops/rasops8.c  Wed Jan 25 20:18:04 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rasops8.c,v 1.31 2012/01/25 16:38:27 macallan Exp $    */
+/*     $NetBSD: rasops8.c,v 1.32 2012/01/25 20:18:04 macallan Exp $    */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.31 2012/01/25 16:38:27 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.32 2012/01/25 20:18:04 macallan Exp $");
 
 #include "opt_rasops.h"
 
@@ -144,18 +144,12 @@
                u_char c = clr[0];
 
                while (height--) {
-                       dp = rp;
-                       rp += ri->ri_stride;
+                       memset(rp, c, width);
                        if (ri->ri_hwbits) {
-                               hp = hrp;
+                               memset(hrp, c, width);
                                hrp += ri->ri_stride;
                        }
-
-                       for (cnt = width; cnt; cnt--) {
-                               *dp++ = c;
-                               if (ri->ri_hwbits)
-                                       *hp++ = c;
-                       }
+                       rp += ri->ri_stride;
                }
        } else {
                fr = WSFONT_GLYPH(uc, font);
@@ -199,7 +193,7 @@
 static void
 rasops8_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
 {
-       int width, height, cnt, fs;
+       int width, height, fs;
        u_char *dp, *rp, *hp, *hrp, *fr, bg, fg, pixel;
        struct rasops_info *ri = (struct rasops_info *)cookie;
        struct wsdisplay_font *font = PICK_FONT(ri, uc);
@@ -233,18 +227,12 @@
        if (uc == ' ') {
 
                while (height--) {
-                       dp = rp;
-                       rp += ri->ri_stride;
+                       memset(rp, bg, width);
                        if (ri->ri_hwbits) {
-                               hp = hrp;
+                               memset(hrp, bg, width);
                                hrp += ri->ri_stride;
                        }
-
-                       for (cnt = width; cnt; cnt--) {
-                               *dp++ = bg;
-                               if (ri->ri_hwbits)
-                                       *hp++ = bg;
-                       }
+                       rp += ri->ri_stride;
                }
        } else {
                fr = WSFONT_GLYPH(uc, font);