Home | History | Annotate | Line # | Download | only in common
ite_subr.c revision 1.8 
      1 /*	$NetBSD: ite_subr.c,v 1.8 2011/02/10 10:44:22 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah $Hdr: ite_subr.c 1.2 92/01/20$
     37  *
     38  *	@(#)ite_subr.c	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #ifdef ITECONSOLE
     42 
     43 #include <sys/param.h>
     44 
     45 #include <hp300/stand/common/itereg.h>
     46 
     47 #include <hp300/stand/common/samachdep.h>
     48 #include <hp300/stand/common/itevar.h>
     49 
     50 static void ite_writeglyph(struct ite_data *, u_char *, u_char *);
     51 
     52 void
     53 ite_fontinfo(struct ite_data *ip)
     54 {
     55 	u_long fontaddr = getword(ip, getword(ip, FONTROM) + FONTADDR);
     56 
     57 	ip->ftheight = getbyte(ip, fontaddr + FONTHEIGHT);
     58 	ip->ftwidth  = getbyte(ip, fontaddr + FONTWIDTH);
     59 	ip->rows     = ip->dheight / ip->ftheight;
     60 	ip->cols     = ip->dwidth / ip->ftwidth;
     61 
     62 	if (ip->fbwidth > ip->dwidth) {
     63 		/*
     64 		 * Stuff goes to right of display.
     65 		 */
     66 		ip->fontx    = ip->dwidth;
     67 		ip->fonty    = 0;
     68 		ip->cpl      = (ip->fbwidth - ip->dwidth) / ip->ftwidth;
     69 		ip->cblankx  = ip->dwidth;
     70 		ip->cblanky  = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;
     71 	}
     72 	else {
     73 		/*
     74 		 * Stuff goes below the display.
     75 		 */
     76 		ip->fontx   = 0;
     77 		ip->fonty   = ip->dheight;
     78 		ip->cpl     = ip->fbwidth / ip->ftwidth;
     79 		ip->cblankx = 0;
     80 		ip->cblanky = ip->fonty + ((128 / ip->cpl) + 1) * ip->ftheight;
     81 	}
     82 }
     83 
     84 void
     85 ite_fontinit(struct ite_data *ip)
     86 {
     87 	int bytewidth = (((ip->ftwidth - 1) / 8) + 1);
     88 	int glyphsize = bytewidth * ip->ftheight;
     89 	u_char fontbuf[500];
     90 	u_char *dp, *fbmem;
     91 	int c, i, romp;
     92 
     93 	romp = getword(ip, getword(ip, FONTROM) + FONTADDR) + FONTDATA;
     94 	for (c = 0; c < 128; c++) {
     95 		fbmem = (u_char *)
     96 		    (FBBASE +
     97 		     (ip->fonty + (c / ip->cpl) * ip->ftheight) * ip->fbwidth +
     98 		     (ip->fontx + (c % ip->cpl) * ip->ftwidth));
     99 		dp = fontbuf;
    100 		for (i = 0; i < glyphsize; i++) {
    101 			*dp++ = getbyte(ip, romp);
    102 			romp += 2;
    103 		}
    104 		ite_writeglyph(ip, fbmem, fontbuf);
    105 	}
    106 }
    107 
    108 static void
    109 ite_writeglyph(struct ite_data *ip, u_char *fbmem, u_char *glyphp)
    110 {
    111 	int bn;
    112 	int l, b;
    113 
    114 	for (l = 0; l < ip->ftheight; l++) {
    115 		bn = 7;
    116 		for (b = 0; b < ip->ftwidth; b++) {
    117 			if ((1 << bn) & *glyphp)
    118 				*fbmem++ = 1;
    119 			else
    120 				*fbmem++ = 0;
    121 			if (--bn < 0) {
    122 				bn = 7;
    123 				glyphp++;
    124 			}
    125 		}
    126 		if (bn < 7)
    127 			glyphp++;
    128 		fbmem -= ip->ftwidth;
    129 		fbmem += ip->fbwidth;
    130 	}
    131 }
    132 #endif
    133