1 /* $NetBSD: rasops32.c,v 1.12 2003/04/16 23:28:41 petrov Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.12 2003/04/16 23:28:41 petrov Exp $"); 41 42 #include "opt_rasops.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/time.h> 47 48 #include <dev/wscons/wsdisplayvar.h> 49 #include <dev/wscons/wsconsio.h> 50 #include <dev/rasops/rasops.h> 51 52 static void rasops32_putchar __P((void *, int, int, u_int, long attr)); 53 54 /* 55 * Initialize a 'rasops_info' descriptor for this depth. 56 */ 57 void 58 rasops32_init(ri) 59 struct rasops_info *ri; 60 { 61 62 if (ri->ri_rnum == 0) { 63 ri->ri_rnum = 8; 64 ri->ri_rpos = 0; 65 ri->ri_gnum = 8; 66 ri->ri_gpos = 8; 67 ri->ri_bnum = 8; 68 ri->ri_bpos = 16; 69 } 70 71 ri->ri_ops.putchar = rasops32_putchar; 72 } 73 74 /* 75 * Paint a single character. 76 */ 77 static void 78 rasops32_putchar(cookie, row, col, uc, attr) 79 void *cookie; 80 int row, col; 81 u_int uc; 82 long attr; 83 { 84 int width, height, cnt, fs, fb, clr[2]; 85 struct rasops_info *ri; 86 int32_t *dp, *rp; 87 u_char *fr; 88 89 ri = (struct rasops_info *)cookie; 90 91 #ifdef RASOPS_CLIPPING 92 /* Catches 'row < 0' case too */ 93 if ((unsigned)row >= (unsigned)ri->ri_rows) 94 return; 95 96 if ((unsigned)col >= (unsigned)ri->ri_cols) 97 return; 98 #endif 99 100 /* check if character fits into font limits */ 101 if (uc < ri->ri_font->firstchar || 102 (uc - ri->ri_font->firstchar) >= ri->ri_font->numchars) 103 return; 104 105 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 106 107 height = ri->ri_font->fontheight; 108 width = ri->ri_font->fontwidth; 109 110 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf]; 111 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf]; 112 113 if (uc == ' ') { 114 while (height--) { 115 dp = rp; 116 DELTA(rp, ri->ri_stride, int32_t *); 117 118 for (cnt = width; cnt; cnt--) 119 *dp++ = clr[0]; 120 } 121 } else { 122 uc -= ri->ri_font->firstchar; 123 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 124 fs = ri->ri_font->stride; 125 126 while (height--) { 127 dp = rp; 128 fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | 129 (fr[0] << 24); 130 fr += fs; 131 DELTA(rp, ri->ri_stride, int32_t *); 132 133 for (cnt = width; cnt; cnt--) { 134 *dp++ = clr[(fb >> 31) & 1]; 135 fb <<= 1; 136 } 137 } 138 } 139 140 /* Do underline */ 141 if ((attr & 1) != 0) { 142 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 143 144 while (width--) 145 *rp++ = clr[1]; 146 } 147 } 148