1 /* $NetBSD: rasops4.c,v 1.28 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: rasops4.c,v 1.28 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 <machine/endian.h> 42 43 #include <dev/wscons/wsdisplayvar.h> 44 #include <dev/wscons/wsconsio.h> 45 46 #define _RASOPS_PRIVATE 47 #define RASOPS_DEPTH 4 48 #include <dev/rasops/rasops.h> 49 #include <dev/rasops/rasops_masks.h> 50 51 static void rasops4_copycols(void *, int, int, int, int); 52 static void rasops4_erasecols(void *, int, int, int, long); 53 static void rasops4_do_cursor(struct rasops_info *); 54 static void rasops4_putchar(void *, int, int col, u_int, long); 55 #ifndef RASOPS_SMALL 56 static void rasops4_putchar8(void *, int, int col, u_int, long); 57 static void rasops4_putchar12(void *, int, int col, u_int, long); 58 static void rasops4_putchar16(void *, int, int col, u_int, long); 59 static void rasops4_makestamp(struct rasops_info *, long); 60 #endif 61 62 #ifndef RASOPS_SMALL 63 /* stamp for optimized character blitting */ 64 static uint16_t stamp[16]; 65 static long stamp_attr; 66 static struct rasops_info *stamp_ri; 67 68 /* 69 * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK 70 * destination = STAMP_READ(offset) 71 */ 72 #define STAMP_SHIFT(fb, n) ((n) ? (fb) >> 4 : (fb)) 73 #define STAMP_MASK 0xf 74 #define STAMP_READ(o) stamp[o] 75 #endif 76 77 /* 78 * Initialize rasops_info struct for this colordepth. 79 */ 80 void 81 rasops4_init(struct rasops_info *ri) 82 { 83 84 if ((ri->ri_font->fontwidth & 1) != 0) { 85 ri->ri_ops.erasecols = rasops4_erasecols; 86 ri->ri_ops.copycols = rasops4_copycols; 87 ri->ri_do_cursor = rasops4_do_cursor; 88 } 89 90 switch (ri->ri_font->fontwidth) { 91 #ifndef RASOPS_SMALL 92 case 8: 93 ri->ri_ops.putchar = rasops4_putchar8; 94 break; 95 case 12: 96 ri->ri_ops.putchar = rasops4_putchar12; 97 break; 98 case 16: 99 ri->ri_ops.putchar = rasops4_putchar16; 100 break; 101 #endif /* !RASOPS_SMALL */ 102 default: 103 ri->ri_ops.putchar = rasops4_putchar; 104 return; 105 } 106 107 #ifndef RASOPS_SMALL 108 stamp_attr = -1; 109 stamp_ri = NULL; 110 #endif 111 } 112 113 #ifndef RASOPS_SMALL 114 /* 115 * Recompute the blitting stamp. 116 */ 117 static void 118 rasops4_makestamp(struct rasops_info *ri, long attr) 119 { 120 int i; 121 uint32_t bg, fg; 122 123 stamp_attr = attr; 124 stamp_ri = ri; 125 126 bg = ATTR_BG(ri, attr) & 0xf; 127 fg = ATTR_FG(ri, attr) & 0xf; 128 129 for (i = 0; i < 16; i++) { 130 #if BYTE_ORDER == LITTLE_ENDIAN 131 if ((ri->ri_flg & RI_BSWAP) == 0) 132 #else 133 if ((ri->ri_flg & RI_BSWAP) != 0) 134 #endif 135 { 136 /* little endian */ 137 stamp[i] = (i & 1 ? fg : bg) << 12; 138 stamp[i] |= (i & 2 ? fg : bg) << 8; 139 stamp[i] |= (i & 4 ? fg : bg) << 4; 140 stamp[i] |= (i & 8 ? fg : bg) << 0; 141 } else { 142 /* big endian */ 143 stamp[i] = (i & 1 ? fg : bg) << 0; 144 stamp[i] |= (i & 2 ? fg : bg) << 4; 145 stamp[i] |= (i & 4 ? fg : bg) << 8; 146 stamp[i] |= (i & 8 ? fg : bg) << 12; 147 } 148 } 149 } 150 151 /* 152 * Width-optimized putchar functions 153 */ 154 #define RASOPS_WIDTH 8 155 #include <dev/rasops/rasops_putchar_width.h> 156 #undef RASOPS_WIDTH 157 158 #define RASOPS_WIDTH 12 159 #include <dev/rasops/rasops_putchar_width.h> 160 #undef RASOPS_WIDTH 161 162 #define RASOPS_WIDTH 16 163 #include <dev/rasops/rasops_putchar_width.h> 164 #undef RASOPS_WIDTH 165 166 #endif /* !RASOPS_SMALL */ 167 168 /* rasops4_putchar */ 169 #undef RASOPS_AA 170 #include <dev/rasops/rasops1-4_putchar.h> 171 172 /* 173 * Grab routines common to depths where (bpp < 8) 174 */ 175 #include <dev/rasops/rasops_bitops.h> 176
Indexes created Sat Sep 20 22:09:52 GMT 2025