1 /* $NetBSD: rasops32.c,v 1.10 2001/11/13 07:00:23 lukem 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 1.10 2001/11/13 07:00:23 lukem Exp $"); 41 42 #include "opt_rasops.h" 43 44 #include <sys/types.h> 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/time.h> 48 49 #include <dev/wscons/wsdisplayvar.h> 50 #include <dev/wscons/wsconsio.h> 51 #include <dev/rasops/rasops.h> 52 53 static void rasops32_putchar __P((void *, int, int, u_int, long attr)); 54 55 /* 56 * Initialize a 'rasops_info' descriptor for this depth. 57 */ 58 void 59 rasops32_init(ri) 60 struct rasops_info *ri; 61 { 62 63 if (ri->ri_rnum == 0) { 64 ri->ri_rnum = 8; 65 ri->ri_rpos = 0; 66 ri->ri_gnum = 8; 67 ri->ri_gpos = 8; 68 ri->ri_bnum = 8; 69 ri->ri_bpos = 16; 70 } 71 72 ri->ri_ops.putchar = rasops32_putchar; 73 } 74 75 /* 76 * Paint a single character. 77 */ 78 static void 79 rasops32_putchar(cookie, row, col, uc, attr) 80 void *cookie; 81 int row, col; 82 u_int uc; 83 long attr; 84 { 85 int width, height, cnt, fs, fb, clr[2]; 86 struct rasops_info *ri; 87 int32_t *dp, *rp; 88 u_char *fr; 89 90 ri = (struct rasops_info *)cookie; 91 92 #ifdef RASOPS_CLIPPING 93 /* Catches 'row < 0' case too */ 94 if ((unsigned)row >= (unsigned)ri->ri_rows) 95 return; 96 97 if ((unsigned)col >= (unsigned)ri->ri_cols) 98 return; 99 #endif 100 101 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 102 103 height = ri->ri_font->fontheight; 104 width = ri->ri_font->fontwidth; 105 106 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf]; 107 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf]; 108 109 if (uc == ' ') { 110 while (height--) { 111 dp = rp; 112 DELTA(rp, ri->ri_stride, int32_t *); 113 114 for (cnt = width; cnt; cnt--) 115 *dp++ = clr[0]; 116 } 117 } else { 118 uc -= ri->ri_font->firstchar; 119 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 120 fs = ri->ri_font->stride; 121 122 while (height--) { 123 dp = rp; 124 fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | 125 (fr[0] << 24); 126 fr += fs; 127 DELTA(rp, ri->ri_stride, int32_t *); 128 129 for (cnt = width; cnt; cnt--) { 130 *dp++ = clr[(fb >> 31) & 1]; 131 fb <<= 1; 132 } 133 } 134 } 135 136 /* Do underline */ 137 if ((attr & 1) != 0) { 138 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 139 140 while (width--) 141 *rp++ = clr[1]; 142 } 143 } 144