xref: /src/sys/arch/hp300/stand/common/ite_hy.c

/*	$NetBSD: ite_hy.c,v 1.11 2011/02/10 11:08:23 tsutsui Exp $	*/

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department and Mark Davies of the Department of Computer
 * Science, Victoria University of Wellington, New Zealand.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 * from: Utah $Hdr: ite_hy.c 1.1 92/01/22$
 *
 *	@(#)ite_hy.c	8.1 (Berkeley) 6/10/93
 */

#ifdef ITECONSOLE

#include <sys/param.h>

#include <hp300/stand/common/itereg.h>
#include <hp300/stand/common/grf_hyreg.h>

#include <hp300/stand/common/samachdep.h>
#include <hp300/stand/common/itevar.h>

#define WINDOWMOVER     hyper_windowmove

#undef charX
#define	charX(ip,c)	\
	(((c) % (ip)->cpl) * ((((ip)->ftwidth + 7) / 8) * 8) + (ip)->fontx)

void hyper_windowmove(struct ite_data *, int, int, int, int, int, int, int);

void
hyper_init(struct ite_data *ip)
{
	struct hyboxfb *regbase = (void *)ip->regbase;
	int width;

	ite_fontinfo(ip);
	width = ((ip->ftwidth + 7) / 8) * 8;
	ip->cpl      = (ip->fbwidth - ip->dwidth) / width;
	ip->cblanky  = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;

	regbase->nblank = 0x05;

	/*
	 * Clear the framebuffer on all planes.
	 */
	hyper_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);

	ite_fontinit1bpp(ip);

	/*
	 * Stash the inverted cursor.
	 */
	hyper_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
			 ip->cblanky, ip->cblankx, ip->ftheight,
			 ip->ftwidth, RR_COPYINVERTED);
}

void
hyper_putc(struct ite_data *ip, int c, int dy, int dx, int mode)
{

	hyper_windowmove(ip, charY(ip, c), charX(ip, c),
			 dy * ip->ftheight, dx * ip->ftwidth,
			 ip->ftheight, ip->ftwidth, RR_COPY);
}

void
hyper_cursor(struct ite_data *ip, int flag)
{

	switch (flag) {
	case MOVE_CURSOR:
		erase_cursor(ip);
		/* fall through ... */
	case DRAW_CURSOR:
		draw_cursor(ip);
		break;
	default:
		erase_cursor(ip);
		break;
	}
}

void
hyper_clear(struct ite_data *ip, int sy, int sx, int h, int w)
{

	hyper_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
			 sy * ip->ftheight, sx * ip->ftwidth,
			 h  * ip->ftheight, w  * ip->ftwidth,
			 RR_CLEAR);
}

void
hyper_scroll(struct ite_data *ip, int sy, int sx, int count, int dir)
{
	int dy = sy - count;
	int height = ip->rows - sy;

	hyper_cursor(ip, ERASE_CURSOR);

	hyper_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
			 dy * ip->ftheight, sx * ip->ftwidth,
			 height * ip->ftheight,
			 ip->cols  * ip->ftwidth, RR_COPY);
}

#include <hp300/stand/common/maskbits.h>

/* NOTE:
 * the first element in starttab could be 0xffffffff.  making it 0
 * lets us deal with a full first word in the middle loop, rather
 * than having to do the multiple reads and masks that we'd
 * have to do if we thought it was partial.
 */
int starttab[32] = {
	0x00000000,
	0x7FFFFFFF,
	0x3FFFFFFF,
	0x1FFFFFFF,
	0x0FFFFFFF,
	0x07FFFFFF,
	0x03FFFFFF,
	0x01FFFFFF,
	0x00FFFFFF,
	0x007FFFFF,
	0x003FFFFF,
	0x001FFFFF,
	0x000FFFFF,
	0x0007FFFF,
	0x0003FFFF,
	0x0001FFFF,
	0x0000FFFF,
	0x00007FFF,
	0x00003FFF,
	0x00001FFF,
	0x00000FFF,
	0x000007FF,
	0x000003FF,
	0x000001FF,
	0x000000FF,
	0x0000007F,
	0x0000003F,
	0x0000001F,
	0x0000000F,
	0x00000007,
	0x00000003,
	0x00000001
};

int endtab[32] = {
	0x00000000,
	0x80000000,
	0xC0000000,
	0xE0000000,
	0xF0000000,
	0xF8000000,
	0xFC000000,
	0xFE000000,
	0xFF000000,
	0xFF800000,
	0xFFC00000,
	0xFFE00000,
	0xFFF00000,
	0xFFF80000,
	0xFFFC0000,
	0xFFFE0000,
	0xFFFF0000,
	0xFFFF8000,
	0xFFFFC000,
	0xFFFFE000,
	0xFFFFF000,
	0xFFFFF800,
	0xFFFFFC00,
	0xFFFFFE00,
	0xFFFFFF00,
	0xFFFFFF80,
	0xFFFFFFC0,
	0xFFFFFFE0,
	0xFFFFFFF0,
	0xFFFFFFF8,
	0xFFFFFFFC,
	0xFFFFFFFE
};

void
hyper_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx,
    int h, int w, int func)
{
	int width;		/* add to get to same position in next line */

	unsigned int *psrcLine, *pdstLine;
				/* pointers to line with current src and dst */
	unsigned int *psrc;	/* pointer to current src longword */
	unsigned int *pdst;	/* pointer to current dst longword */

				/* following used for looping through a line */
	unsigned int startmask, endmask;  /* masks for writing ends of dst */
	int nlMiddle;		/* whole longwords in dst */
	int nl;			/* temp copy of nlMiddle */
	unsigned int tmpSrc;
				/* place to store full source word */
	int xoffSrc;		/* offset (>= 0, < 32) from which to
				   fetch whole longwords fetched
				   in src */
	int nstart;		/* number of ragged bits at start of dst */
	int nend;		/* number of ragged bits at end of dst */
	int srcStartOver;	/* pulling nstart bits from src
				   overflows into the next word? */

	if (h == 0 || w == 0)
		return;

	width = ip->fbwidth >> 5;
	psrcLine = ((unsigned int *) ip->fbbase) + (sy * width);
	pdstLine = ((unsigned int *) ip->fbbase) + (dy * width);

	/* x direction doesn't matter for < 1 longword */
	if (w <= 32) {
		int srcBit, dstBit;     /* bit offset of src and dst */

		pdstLine += (dx >> 5);
		psrcLine += (sx >> 5);
		psrc = psrcLine;
		pdst = pdstLine;

		srcBit = sx & 0x1f;
		dstBit = dx & 0x1f;

		while (h--) {
			getandputrop(psrc, srcBit, dstBit, w, pdst, func);
		        pdst += width;
			psrc += width;
		}
	} else {
		maskbits(dx, w, startmask, endmask, nlMiddle);
		if (startmask)
			nstart = 32 - (dx & 0x1f);
		else
			nstart = 0;
		if (endmask)
			nend = (dx + w) & 0x1f;
		else
			nend = 0;

		xoffSrc = ((sx & 0x1f) + nstart) & 0x1f;
		srcStartOver = ((sx & 0x1f) + nstart) > 31;

		pdstLine += (dx >> 5);
		psrcLine += (sx >> 5);

		while (h--) {
		        psrc = psrcLine;
			pdst = pdstLine;

			if (startmask) {
				getandputrop(psrc, (sx & 0x1f),
				    (dx & 0x1f), nstart, pdst, func);
				pdst++;
				if (srcStartOver)
					psrc++;
			}

			/* special case for aligned operations */
			if (xoffSrc == 0) {
				nl = nlMiddle;
				while (nl--) {
					DoRop (*pdst, func, *psrc++, *pdst);
					pdst++;
		    		}
			} else {
				nl = nlMiddle + 1;
				while (--nl) {
					getunalignedword(psrc, xoffSrc, tmpSrc);
					DoRop(*pdst, func, tmpSrc, *pdst);
					pdst++;
					psrc++;
				}
			}

			if (endmask) {
				getandputrop0(psrc, xoffSrc, nend, pdst, func);
			}

			pdstLine += width;
			psrcLine += width;
		}
	}
}
#endif