6eb32961ce
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.
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/* $NetBSD: wsdisplay_vcons_util.c,v 1.2 2011/05/25 06:01:39 macallan Exp $ */
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/*-
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* Copyright (c) 2009 Michael Lorenz
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* some utility functions for use with vcons */
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#include <sys/param.h>
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#include <sys/stdint.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/device.h>
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#include <sys/msgbuf.h>
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#include <dev/cons.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wsfont/wsfont.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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void
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vcons_replay_msgbuf(struct vcons_screen *scr)
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{
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int status = scr->scr_status;
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int rptr = msgbufp->msg_bufr;
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scr->scr_status &= ~VCONS_IS_VISIBLE;
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while (rptr != msgbufp->msg_bufx) {
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cnputc(msgbufp->msg_bufc[rptr]);
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rptr++;
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if (rptr >= msgbufp->msg_bufs)
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rptr = 0;
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}
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scr->scr_status = status;
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vcons_update_screen(scr);
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}
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