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/* $OpenBSD: rasops32.c,v 1.7 2010/08/28 12:48:14 miod Exp $ */
/* $NetBSD: rasops32.c,v 1.7 2000/04/12 14:22:29 pk Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/rasops/rasops.h>
int rasops32_putchar(void *, int, int, u_int, long);
/*
* Initialize a 'rasops_info' descriptor for this depth.
*/
void
rasops32_init(struct rasops_info *ri)
{
if (ri->ri_rnum == 0) {
ri->ri_rnum = 8;
ri->ri_rpos = 0;
ri->ri_gnum = 8;
ri->ri_gpos = 8;
ri->ri_bnum = 8;
ri->ri_bpos = 16;
}
ri->ri_ops.putchar = rasops32_putchar;
}
/*
* Paint a single character.
*/
int
rasops32_putchar(void *cookie, int row, int col, u_int uc, long attr)
{
int width, height, cnt, fs, fb, clr[2];
struct rasops_info *ri;
int32_t *dp, *rp;
u_char *fr;
ri = (struct rasops_info *)cookie;
#ifdef RASOPS_CLIPPING
/* Catches 'row < 0' case too */
if ((unsigned)row >= (unsigned)ri->ri_rows)
return 0;
if ((unsigned)col >= (unsigned)ri->ri_cols)
return 0;
#endif
rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
height = ri->ri_font->fontheight;
width = ri->ri_font->fontwidth;
clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf];
clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf];
if (uc == ' ') {
while (height--) {
dp = rp;
DELTA(rp, ri->ri_stride, int32_t *);
for (cnt = width; cnt; cnt--)
*dp++ = clr[0];
}
} else {
uc -= ri->ri_font->firstchar;
fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
fs = ri->ri_font->stride;
while (height--) {
dp = rp;
fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
(fr[0] << 24);
fr += fs;
DELTA(rp, ri->ri_stride, int32_t *);
for (cnt = width; cnt; cnt--) {
*dp++ = clr[(fb >> 31) & 1];
fb <<= 1;
}
}
}
/* Do underline */
if ((attr & 1) != 0) {
DELTA(rp, -(ri->ri_stride << 1), int32_t *);
while (width--)
*rp++ = clr[1];
}
return 0;
}
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