1 /* $NetBSD: rasops32.c,v 1.16 2008/04/28 20:23:56 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.16 2008/04/28 20:23:56 martin Exp $"); 34 35 #include "opt_rasops.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/time.h> 40 41 #include <dev/wscons/wsdisplayvar.h> 42 #include <dev/wscons/wsconsio.h> 43 #include <dev/rasops/rasops.h> 44 45 static void rasops32_putchar(void *, int, int, u_int, long attr); 46 47 /* 48 * Initialize a 'rasops_info' descriptor for this depth. 49 */ 50 void 51 rasops32_init(ri) 52 struct rasops_info *ri; 53 { 54 55 if (ri->ri_rnum == 0) { 56 ri->ri_rnum = 8; 57 ri->ri_rpos = 0; 58 ri->ri_gnum = 8; 59 ri->ri_gpos = 8; 60 ri->ri_bnum = 8; 61 ri->ri_bpos = 16; 62 } 63 64 ri->ri_ops.putchar = rasops32_putchar; 65 } 66 67 /* 68 * Paint a single character. 69 */ 70 static void 71 rasops32_putchar(cookie, row, col, uc, attr) 72 void *cookie; 73 int row, col; 74 u_int uc; 75 long attr; 76 { 77 int width, height, cnt, fs, fb, clr[2]; 78 struct rasops_info *ri; 79 int32_t *dp, *rp, *hp, *hrp; 80 u_char *fr; 81 82 ri = (struct rasops_info *)cookie; 83 hp = hrp = NULL; 84 85 #ifdef RASOPS_CLIPPING 86 /* Catches 'row < 0' case too */ 87 if ((unsigned)row >= (unsigned)ri->ri_rows) 88 return; 89 90 if ((unsigned)col >= (unsigned)ri->ri_cols) 91 return; 92 #endif 93 94 /* check if character fits into font limits */ 95 if (uc < ri->ri_font->firstchar || 96 (uc - ri->ri_font->firstchar) >= ri->ri_font->numchars) 97 return; 98 99 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 100 if (ri->ri_hwbits) 101 hrp = (int32_t *)(ri->ri_hwbits + row*ri->ri_yscale + 102 col*ri->ri_xscale); 103 104 height = ri->ri_font->fontheight; 105 width = ri->ri_font->fontwidth; 106 107 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf]; 108 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf]; 109 110 if (uc == ' ') { 111 while (height--) { 112 dp = rp; 113 DELTA(rp, ri->ri_stride, int32_t *); 114 if (ri->ri_hwbits) { 115 hp = hrp; 116 DELTA(hrp, ri->ri_stride, int32_t *); 117 } 118 119 for (cnt = width; cnt; cnt--) { 120 *dp++ = clr[0]; 121 if (ri->ri_hwbits) 122 *hp++ = clr[0]; 123 } 124 } 125 } else { 126 uc -= ri->ri_font->firstchar; 127 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 128 fs = ri->ri_font->stride; 129 130 while (height--) { 131 dp = rp; 132 fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | 133 (fr[0] << 24); 134 fr += fs; 135 DELTA(rp, ri->ri_stride, int32_t *); 136 if (ri->ri_hwbits) { 137 hp = hrp; 138 DELTA(hrp, ri->ri_stride, int32_t *); 139 } 140 141 for (cnt = width; cnt; cnt--) { 142 *dp++ = clr[(fb >> 31) & 1]; 143 if (ri->ri_hwbits) 144 *hp++ = clr[(fb >> 31) & 1]; 145 fb <<= 1; 146 } 147 } 148 } 149 150 /* Do underline */ 151 if ((attr & 1) != 0) { 152 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 153 if (ri->ri_hwbits) 154 DELTA(hrp, -(ri->ri_stride << 1), int32_t *); 155 156 while (width--) { 157 *rp++ = clr[1]; 158 if (ri->ri_hwbits) 159 *hrp++ = clr[1]; 160 } 161 } 162 } 163