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authormacallan <macallan@NetBSD.org>2012-01-25 16:38:27 +0000
committermacallan <macallan@NetBSD.org>2012-01-25 16:38:27 +0000
commite94c07fa43cb0a20f58177b14014233b9a4e791a (patch)
treed08bf1e0d0f6e9defc550ee986f0cc0b8b681a6c /sys/dev/rasops
parentf999aaae72778093df8a937179feab055358507b (diff)
rasops8_putchar_aa():
render glyphs scanline by scanline into a 64bit-aligned buffer, then memcpy() it into video memory instead of writing directly. This gives >10% speedup even on valkyriefb, likely more on PCIe framebuffers.
Diffstat (limited to 'sys/dev/rasops')
-rw-r--r--sys/dev/rasops/rasops8.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/sys/dev/rasops/rasops8.c b/sys/dev/rasops/rasops8.c
index d0f8511b904..bd9c0ba4e6d 100644
--- a/sys/dev/rasops/rasops8.c
+++ b/sys/dev/rasops/rasops8.c
@@ -1,4 +1,4 @@
-/* $NetBSD: rasops8.c,v 1.30 2012/01/04 20:16:20 macallan Exp $ */
+/* $NetBSD: rasops8.c,v 1.31 2012/01/25 16:38:27 macallan Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.30 2012/01/04 20:16:20 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.31 2012/01/25 16:38:27 macallan Exp $");
#include "opt_rasops.h"
@@ -205,6 +205,7 @@ rasops8_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
struct wsdisplay_font *font = PICK_FONT(ri, uc);
int x, y, r, g, b, aval;
int r1, g1, b1, r0, g0, b0, fgo, bgo;
+ uint8_t scanline[32] __attribute__ ((aligned(8)));
hp = hrp = NULL;
@@ -278,11 +279,11 @@ rasops8_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
((g & 0xe000) >> 11) |
((b & 0xc000) >> 14);
}
- *dp = pixel;
- dp++;
+ scanline[x] = pixel;
}
+ memcpy(rp, scanline, width);
if (ri->ri_hwbits) {
- memcpy(rp, hrp, width);
+ memcpy(hrp, scanline, width);
hrp += ri->ri_stride;
}
rp += ri->ri_stride;