1 /* $NetBSD: rasops15.c,v 1.39 2019/08/14 00:51:10 rin 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: rasops15.c,v 1.39 2019/08/14 00:51:10 rin Exp $"); 34 35 #ifdef _KERNEL_OPT 36 #include "opt_rasops.h" 37 #endif 38 39 #include <sys/param.h> 40 41 #include <dev/wscons/wsdisplayvar.h> 42 #include <dev/wscons/wsconsio.h> 43 44 #define _RASOPS_PRIVATE 45 #define RASOPS_DEPTH 15 46 #include <dev/rasops/rasops.h> 47 48 static void rasops15_putchar(void *, int, int, u_int, long); 49 static void rasops15_putchar_aa(void *, int, int, u_int, long); 50 #ifndef RASOPS_SMALL 51 static void rasops15_putchar8(void *, int, int, u_int, long); 52 static void rasops15_putchar12(void *, int, int, u_int, long); 53 static void rasops15_putchar16(void *, int, int, u_int, long); 54 static void rasops15_makestamp(struct rasops_info *, long); 55 #endif 56 57 #ifndef RASOPS_SMALL 58 /* stamp for optimized character blitting */ 59 static uint32_t stamp[32]; 60 static long stamp_attr; 61 static struct rasops_info *stamp_ri; 62 63 /* 64 * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK 65 * destination uint32_t[0] = STAMP_READ(offset) 66 * destination uint32_t[1] = STAMP_READ(offset + 4) 67 */ 68 #define STAMP_SHIFT(fb, n) ((n) ? (fb) >> 1: (fb) << 3) 69 #define STAMP_MASK (0xf << 3) 70 #define STAMP_READ(o) (*(uint32_t *)((uint8_t *)stamp + (o))) 71 #endif 72 73 /* 74 * Initialize rasops_info struct for this colordepth. 75 */ 76 void 77 rasops15_init(struct rasops_info *ri) 78 { 79 80 if (ri->ri_rnum == 0) { 81 ri->ri_rnum = ri->ri_gnum = ri->ri_bnum = 5; 82 ri->ri_gnum += (ri->ri_depth == 16); 83 84 ri->ri_rpos = 10 + (ri->ri_depth == 16); 85 ri->ri_gpos = 5; 86 ri->ri_bpos = 0; 87 } 88 89 if (FONT_IS_ALPHA(ri->ri_font)) { 90 ri->ri_ops.putchar = rasops15_putchar_aa; 91 return; 92 } 93 94 switch (ri->ri_font->fontwidth) { 95 #ifndef RASOPS_SMALL 96 case 8: 97 ri->ri_ops.putchar = rasops15_putchar8; 98 break; 99 case 12: 100 ri->ri_ops.putchar = rasops15_putchar12; 101 break; 102 case 16: 103 ri->ri_ops.putchar = rasops15_putchar16; 104 break; 105 #endif /* !RASOPS_SMALL */ 106 default: 107 ri->ri_ops.putchar = rasops15_putchar; 108 return; 109 } 110 111 #ifndef RASOPS_SMALL 112 stamp_attr = -1; 113 stamp_ri = NULL; 114 #endif 115 } 116 117 /* rasops15_putchar */ 118 #undef RASOPS_AA 119 #include <dev/rasops/rasops_putchar.h> 120 121 /* rasops15_putchar_aa */ 122 #define RASOPS_AA 123 #include <dev/rasops/rasops_putchar.h> 124 #undef RASOPS_AA 125 126 #ifndef RASOPS_SMALL 127 /* 128 * Recompute the 4x1 blitting stamp. 129 */ 130 static void 131 rasops15_makestamp(struct rasops_info *ri, long attr) 132 { 133 int i; 134 uint32_t bg, fg; 135 136 stamp_attr = attr; 137 stamp_ri = ri; 138 139 bg = ATTR_BG(ri, attr) & 0xffff; 140 fg = ATTR_FG(ri, attr) & 0xffff; 141 142 for (i = 0; i < 32; i += 2) { 143 #if BYTE_ORDER == LITTLE_ENDIAN 144 stamp[i] = (i & 16 ? fg : bg); 145 stamp[i] |= (i & 8 ? fg : bg) << 16; 146 stamp[i + 1] = (i & 4 ? fg : bg); 147 stamp[i + 1] |= (i & 2 ? fg : bg) << 16; 148 #else 149 stamp[i] = (i & 8 ? fg : bg); 150 stamp[i] |= (i & 16 ? fg : bg) << 16; 151 stamp[i + 1] = (i & 2 ? fg : bg); 152 stamp[i + 1] |= (i & 4 ? fg : bg) << 16; 153 #endif 154 } 155 } 156 157 /* 158 * Width-optimized putchar functions 159 */ 160 #define RASOPS_WIDTH 8 161 #include <dev/rasops/rasops_putchar_width.h> 162 #undef RASOPS_WIDTH 163 164 #define RASOPS_WIDTH 12 165 #include <dev/rasops/rasops_putchar_width.h> 166 #undef RASOPS_WIDTH 167 168 #define RASOPS_WIDTH 16 169 #include <dev/rasops/rasops_putchar_width.h> 170 #undef RASOPS_WIDTH 171 172 #endif /* !RASOPS_SMALL */ 173
Indexes created Sat Sep 20 22:09:52 GMT 2025