rasops2.c revision 1.31
1 /* $NetBSD: rasops2.c,v 1.31 2019/08/07 12:36:36 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: rasops2.c,v 1.31 2019/08/07 12:36:36 rin Exp $"); 34 35 #include "opt_rasops.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/time.h> 40 #include <machine/endian.h> 41 42 #include <dev/wscons/wsdisplayvar.h> 43 #include <dev/wscons/wsconsio.h> 44 45 #define _RASOPS_PRIVATE 46 #define RASOPS_DEPTH 2 47 #include <dev/rasops/rasops.h> 48 #include <dev/rasops/rasops_masks.h> 49 50 static void rasops2_copycols(void *, int, int, int, int); 51 static void rasops2_erasecols(void *, int, int, int, long); 52 static void rasops2_do_cursor(struct rasops_info *); 53 static void rasops2_putchar(void *, int, int col, u_int, long); 54 static void rasops2_putchar_aa(void *, int, int col, u_int, long); 55 #ifndef RASOPS_SMALL 56 static void rasops2_putchar8(void *, int, int col, u_int, long); 57 static void rasops2_putchar12(void *, int, int col, u_int, long); 58 static void rasops2_putchar16(void *, int, int col, u_int, long); 59 static void rasops2_makestamp(struct rasops_info *, long); 60 #endif 61 62 #ifndef RASOPS_SMALL 63 /* 4x1 stamp for optimized character blitting */ 64 static uint8_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 rasops2_init(struct rasops_info *ri) 82 { 83 84 if ((ri->ri_font->fontwidth & 3) != 0) { 85 ri->ri_ops.erasecols = rasops2_erasecols; 86 ri->ri_ops.copycols = rasops2_copycols; 87 ri->ri_do_cursor = rasops2_do_cursor; 88 } 89 90 if (FONT_IS_ALPHA(ri->ri_font)) { 91 ri->ri_ops.putchar = rasops2_putchar_aa; 92 return; 93 } 94 95 switch (ri->ri_font->fontwidth) { 96 #ifndef RASOPS_SMALL 97 case 8: 98 ri->ri_ops.putchar = rasops2_putchar8; 99 break; 100 case 12: 101 ri->ri_ops.putchar = rasops2_putchar12; 102 break; 103 case 16: 104 ri->ri_ops.putchar = rasops2_putchar16; 105 break; 106 #endif 107 default: 108 ri->ri_ops.putchar = rasops2_putchar; 109 return; 110 } 111 112 #ifndef RASOPS_SMALL 113 stamp_attr = 0; 114 stamp_ri = NULL; 115 #endif 116 } 117 118 #ifndef RASOPS_SMALL 119 /* 120 * Recompute the blitting stamp. 121 */ 122 static void 123 rasops2_makestamp(struct rasops_info *ri, long attr) 124 { 125 int i, fg, bg; 126 127 stamp_attr = attr; 128 stamp_ri = ri; 129 130 fg = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf] & 3; 131 bg = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf] & 3; 132 133 for (i = 0; i < 16; i++) { 134 #if BYTE_ORDER == BIG_ENDIAN 135 #define NEED_LITTLE_ENDIAN_STAMP RI_BSWAP 136 #else 137 #define NEED_LITTLE_ENDIAN_STAMP 0 138 #endif 139 if ((ri->ri_flg & RI_BSWAP) == NEED_LITTLE_ENDIAN_STAMP) { 140 /* littel endian */ 141 stamp[i] = (i & 8 ? fg : bg); 142 stamp[i] |= (i & 4 ? fg : bg) << 2; 143 stamp[i] |= (i & 2 ? fg : bg) << 4; 144 stamp[i] |= (i & 1 ? fg : bg) << 6; 145 } else { 146 /* big endian */ 147 stamp[i] = (i & 1 ? fg : bg); 148 stamp[i] |= (i & 2 ? fg : bg) << 2; 149 stamp[i] |= (i & 4 ? fg : bg) << 4; 150 stamp[i] |= (i & 8 ? fg : bg) << 6; 151 } 152 } 153 } 154 155 #define RASOPS_WIDTH 8 156 #include "rasops_putchar_width.h" 157 #undef RASOPS_WIDTH 158 159 #define RASOPS_WIDTH 12 160 #include "rasops_putchar_width.h" 161 #undef RASOPS_WIDTH 162 163 #define RASOPS_WIDTH 16 164 #include "rasops_putchar_width.h" 165 #undef RASOPS_WIDTH 166 167 #endif /* !RASOPS_SMALL */ 168 169 /* 170 * Grab routines common to depths where (bpp < 8) 171 */ 172 #undef RASOPS_AA 173 #include "rasops1-4_putchar.h" 174 175 #define RASOPS_AA 176 #include "rasops1-4_putchar.h" 177 #undef RASOPS_AA 178 179 #include <dev/rasops/rasops_bitops.h> 180
Indexes created Thu Sep 25 16:09:42 GMT 2025