1 /* $NetBSD: rasops8.c,v 1.51 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: rasops8.c,v 1.51 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 8 46 #include <dev/rasops/rasops.h> 47 48 static void rasops8_putchar(void *, int, int, u_int, long); 49 static void rasops8_putchar_aa(void *, int, int, u_int, long); 50 #ifndef RASOPS_SMALL 51 static void rasops8_putchar8(void *, int, int, u_int, long); 52 static void rasops8_putchar12(void *, int, int, u_int, long); 53 static void rasops8_putchar16(void *, int, int, u_int, long); 54 static void rasops8_makestamp(struct rasops_info *ri, long); 55 #endif 56 57 #ifndef RASOPS_SMALL 58 /* stamp for optimized character blitting */ 59 static uint32_t stamp[16]; 60 static long stamp_attr; 61 static struct rasops_info *stamp_ri; 62 63 /* 64 * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK 65 * destination = STAMP_READ(offset) 66 */ 67 #define STAMP_SHIFT(fb, n) ((n) ? (fb) >> 2 : (fb) << 2) 68 #define STAMP_MASK (0xf << 2) 69 #define STAMP_READ(o) (*(uint32_t *)((uint8_t *)stamp + (o))) 70 #endif 71 72 /* 73 * Initialize a 'rasops_info' descriptor for this depth. 74 */ 75 void 76 rasops8_init(struct rasops_info *ri) 77 { 78 79 if (ri->ri_flg & RI_8BIT_IS_RGB) { 80 ri->ri_rnum = ri->ri_gnum = 3; 81 ri->ri_bnum = 2; 82 83 ri->ri_rpos = 5; 84 ri->ri_gpos = 2; 85 ri->ri_bpos = 0; 86 } 87 88 if (FONT_IS_ALPHA(ri->ri_font)) { 89 ri->ri_ops.putchar = rasops8_putchar_aa; 90 return; 91 } 92 93 switch (ri->ri_font->fontwidth) { 94 #ifndef RASOPS_SMALL 95 case 8: 96 ri->ri_ops.putchar = rasops8_putchar8; 97 break; 98 case 12: 99 ri->ri_ops.putchar = rasops8_putchar12; 100 break; 101 case 16: 102 ri->ri_ops.putchar = rasops8_putchar16; 103 break; 104 #endif /* !RASOPS_SMALL */ 105 default: 106 ri->ri_ops.putchar = rasops8_putchar; 107 return; 108 } 109 110 #ifndef RASOPS_SMALL 111 stamp_attr = -1; 112 stamp_ri = NULL; 113 #endif 114 } 115 116 /* rasops8_putchar */ 117 #undef RASOPS_AA 118 #include <dev/rasops/rasops_putchar.h> 119 120 /* rasops8_putchar_aa */ 121 #define RASOPS_AA 122 #include <dev/rasops/rasops_putchar.h> 123 #undef RASOPS_AA 124 125 #ifndef RASOPS_SMALL 126 /* 127 * Recompute the blitting stamp. 128 */ 129 static void 130 rasops8_makestamp(struct rasops_info *ri, long attr) 131 { 132 int i; 133 uint32_t bg, fg; 134 135 stamp_attr = attr; 136 stamp_ri = ri; 137 138 bg = ATTR_BG(ri, attr) & 0xff; 139 fg = ATTR_FG(ri, attr) & 0xff; 140 141 for (i = 0; i < 16; i++) { 142 #if BYTE_ORDER == LITTLE_ENDIAN 143 if ((ri->ri_flg & RI_BSWAP) == 0) 144 #else 145 if ((ri->ri_flg & RI_BSWAP) != 0) 146 #endif 147 { 148 /* little endian */ 149 stamp[i] = (i & 8 ? fg : bg); 150 stamp[i] |= (i & 4 ? fg : bg) << 8; 151 stamp[i] |= (i & 2 ? fg : bg) << 16; 152 stamp[i] |= (i & 1 ? fg : bg) << 24; 153 } else { 154 /* big endian */ 155 stamp[i] = (i & 1 ? fg : bg); 156 stamp[i] |= (i & 2 ? fg : bg) << 8; 157 stamp[i] |= (i & 4 ? fg : bg) << 16; 158 stamp[i] |= (i & 8 ? fg : bg) << 24; 159 } 160 } 161 } 162 163 /* 164 * Width-optimized putchar functions 165 */ 166 #define RASOPS_WIDTH 8 167 #include <dev/rasops/rasops_putchar_width.h> 168 #undef RASOPS_WIDTH 169 170 #define RASOPS_WIDTH 12 171 #include <dev/rasops/rasops_putchar_width.h> 172 #undef RASOPS_WIDTH 173 174 #define RASOPS_WIDTH 16 175 #include <dev/rasops/rasops_putchar_width.h> 176 #undef RASOPS_WIDTH 177 178 #endif /* !RASOPS_SMALL */ 179
Indexes created Sat Sep 20 22:09:52 GMT 2025