1 /* $NetBSD: wscons_rinit.c,v 1.6 2005/12/11 12:24:12 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)rcons_font.c 8.1 (Berkeley) 6/11/93 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: wscons_rinit.c,v 1.6 2005/12/11 12:24:12 christos Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 50 #include <dev/rcons/raster.h> 51 #include <dev/wscons/wscons_raster.h> 52 53 #include <dev/wscons/wscons_rfont.h> 54 55 void rcons_initfont(struct rcons *, struct raster_font *); 56 57 void 58 rcons_initfont(struct rcons *rc, struct raster_font *fp) 59 { 60 static int initfontdone; 61 62 rc->rc_font = fp; 63 64 /* Get distance to top and bottom of font from font origin */ 65 rc->rc_font_ascent = -(rc->rc_font->chars)['a'].homey; 66 67 #if !defined(MSBYTE_FIRST) && !defined(MSBIT_FIRST) /* XXX other cases */ 68 /* swap byte order on font data. ick. */ 69 if (!initfontdone) { 70 int ch, i, n, bit; 71 u_int32_t *pix, npix; 72 73 for (ch = 0; ch < 256; ch++) { 74 if (rc->rc_font->chars[ch].r == 0) 75 continue; 76 77 n = rc->rc_font->chars[ch].r->linelongs * 78 rc->rc_font->chars[ch].r->height; 79 pix = rc->rc_font->chars[ch].r->pixels; 80 81 for (i = 0; i < n; i++) { 82 npix = 0; 83 for (bit = 0; bit < 32; bit++) 84 if (pix[i] & (1 << bit)) 85 npix |= (1 << (31 - bit)); 86 pix[i] = npix; 87 } 88 } 89 } 90 #endif 91 92 initfontdone = 1; 93 } 94 95 void 96 rcons_init(struct rcons *rc, int mrow, int mcol) 97 { 98 struct raster *rp = rc->rc_sp; 99 int i; 100 101 rcons_initfont(rc, &gallant19); 102 103 i = rp->height / rc->rc_font->height; 104 rc->rc_maxrow = min(i, mrow); 105 106 i = rp->width / rc->rc_font->width; 107 rc->rc_maxcol = min(i, mcol); 108 109 /* Center emulator screen (but align x origin to 32 bits) */ 110 rc->rc_xorigin = 111 ((rp->width - rc->rc_maxcol * rc->rc_font->width) / 2) & ~0x1f; 112 rc->rc_yorigin = 113 (rp->height - rc->rc_maxrow * rc->rc_font->height) / 2; 114 115 /* Raster width used for row copies */ 116 rc->rc_raswidth = rc->rc_maxcol * rc->rc_font->width; 117 if (rc->rc_raswidth & 0x1f) { 118 /* Pad to 32 bits */ 119 i = (rc->rc_raswidth + 0x1f) & ~0x1f; 120 /* Make sure width isn't too wide */ 121 if (rc->rc_xorigin + i <= rp->width) 122 rc->rc_raswidth = i; 123 } 124 125 rc->rc_bits = 0; 126 127 /* If cursor position given, assume it's there and drawn. */ 128 if (*rc->rc_crowp != -1 && *rc->rc_ccolp != -1) 129 rc->rc_bits |= RC_CURSOR; 130 } 131