1 /* $OpenBSD: rasops32.c,v 1.7 2010/08/28 12:48:14 miod Exp $ */ 2 /* $NetBSD: rasops32.c,v 1.7 2000/04/12 14:22:29 pk Exp $ */ 3 4 /*- 5 * Copyright (c) 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Andrew Doran. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/time.h> 36 37 #include <dev/wscons/wsdisplayvar.h> 38 #include <dev/wscons/wsconsio.h> 39 #include <dev/rasops/rasops.h> 40 41 int rasops32_putchar(void *, int, int, u_int, long); 42 43 /* 44 * Initialize a 'rasops_info' descriptor for this depth. 45 */ 46 void 47 rasops32_init(struct rasops_info *ri) 48 { 49 50 if (ri->ri_rnum == 0) { 51 ri->ri_rnum = 8; 52 ri->ri_rpos = 0; 53 ri->ri_gnum = 8; 54 ri->ri_gpos = 8; 55 ri->ri_bnum = 8; 56 ri->ri_bpos = 16; 57 } 58 59 ri->ri_ops.putchar = rasops32_putchar; 60 } 61 62 /* 63 * Paint a single character. 64 */ 65 int 66 rasops32_putchar(void *cookie, int row, int col, u_int uc, long attr) 67 { 68 int width, height, cnt, fs, fb, clr[2]; 69 struct rasops_info *ri; 70 int32_t *dp, *rp; 71 u_char *fr; 72 73 ri = (struct rasops_info *)cookie; 74 75 #ifdef RASOPS_CLIPPING 76 /* Catches 'row < 0' case too */ 77 if ((unsigned)row >= (unsigned)ri->ri_rows) 78 return 0; 79 80 if ((unsigned)col >= (unsigned)ri->ri_cols) 81 return 0; 82 #endif 83 84 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 85 86 height = ri->ri_font->fontheight; 87 width = ri->ri_font->fontwidth; 88 89 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf]; 90 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf]; 91 92 if (uc == ' ') { 93 while (height--) { 94 dp = rp; 95 DELTA(rp, ri->ri_stride, int32_t *); 96 97 for (cnt = width; cnt; cnt--) 98 *dp++ = clr[0]; 99 } 100 } else { 101 uc -= ri->ri_font->firstchar; 102 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 103 fs = ri->ri_font->stride; 104 105 while (height--) { 106 dp = rp; 107 fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | 108 (fr[0] << 24); 109 fr += fs; 110 DELTA(rp, ri->ri_stride, int32_t *); 111 112 for (cnt = width; cnt; cnt--) { 113 *dp++ = clr[(fb >> 31) & 1]; 114 fb <<= 1; 115 } 116 } 117 } 118 119 /* Do underline */ 120 if ((attr & 1) != 0) { 121 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 122 123 while (width--) 124 *rp++ = clr[1]; 125 } 126 127 return 0; 128 } 129