CVS commit: src/sys/dev/wscons

["Michael Lorenz" <macallan%netbsd.org@localhost>]

Module Name:    src
Committed By:   macallan
Date:           Wed May 25 06:01:39 UTC 2011

Modified Files:
        src/sys/dev/wscons: wsdisplay_vcons.c wsdisplay_vcons_util.c
            wsdisplay_vconsvar.h

Log Message:
add a cache so when we update the screen we only redraw the character cells
that actually changed since last time. This gives a noticeable speedup on
slower hardware with dumb framebuffers.
For now this works with VCONS_DRAW_INTR and VCONS_DONT_READ only.


To generate a diff of this commit:
cvs rdiff -u -r1.24 -r1.25 src/sys/dev/wscons/wsdisplay_vcons.c
cvs rdiff -u -r1.1 -r1.2 src/sys/dev/wscons/wsdisplay_vcons_util.c
cvs rdiff -u -r1.18 -r1.19 src/sys/dev/wscons/wsdisplay_vconsvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.