rasops4.c revision 1.22
1 /* $NetBSD: rasops4.c,v 1.22 2019/07/31 02:04:14 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 1.22 2019/07/31 02:04:14 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 #include <dev/rasops/rasops.h> 47 #include <dev/rasops/rasops_masks.h> 48 49 static void rasops4_copycols(void *, int, int, int, int); 50 static void rasops4_erasecols(void *, int, int, int, long); 51 static void rasops4_do_cursor(struct rasops_info *); 52 static void rasops4_putchar(void *, int, int col, u_int, long); 53 #ifndef RASOPS_SMALL 54 static void rasops4_putchar8(void *, int, int col, u_int, long); 55 static void rasops4_putchar12(void *, int, int col, u_int, long); 56 static void rasops4_putchar16(void *, int, int col, u_int, long); 57 static void rasops4_makestamp(struct rasops_info *, long); 58 #endif 59 60 /* 61 * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK 62 * destination = STAMP_READ(offset) 63 */ 64 #define STAMP_SHIFT(fb, n) ((n) ? (fb) >> 4 : (fb)) 65 #define STAMP_MASK 0xf 66 #define STAMP_READ(o) stamp[o] 67 68 /* 69 * Initialize rasops_info struct for this colordepth. 70 */ 71 void 72 rasops4_init(struct rasops_info *ri) 73 { 74 75 if ((ri->ri_font->fontwidth & 1) != 0) { 76 ri->ri_ops.erasecols = rasops4_erasecols; 77 ri->ri_ops.copycols = rasops4_copycols; 78 ri->ri_do_cursor = rasops4_do_cursor; 79 } 80 81 switch (ri->ri_font->fontwidth) { 82 #ifndef RASOPS_SMALL 83 case 8: 84 ri->ri_ops.putchar = rasops4_putchar8; 85 break; 86 case 12: 87 ri->ri_ops.putchar = rasops4_putchar12; 88 break; 89 case 16: 90 ri->ri_ops.putchar = rasops4_putchar16; 91 break; 92 #endif /* !RASOPS_SMALL */ 93 default: 94 panic("fontwidth not 8/12/16 or RASOPS_SMALL - fixme!"); 95 ri->ri_ops.putchar = rasops4_putchar; 96 return; 97 } 98 99 #ifndef RASOPS_SMALL 100 rasops_allocstamp(ri, sizeof(uint16_t) * 16); 101 #endif 102 } 103 104 /* 105 * Put a single character. This is the generic version. 106 */ 107 static void 108 rasops4_putchar(void *cookie, int row, int col, u_int uc, long attr) 109 { 110 111 /* XXX punt */ 112 } 113 114 #ifndef RASOPS_SMALL 115 /* 116 * Recompute the blitting stamp. 117 */ 118 static void 119 rasops4_makestamp(struct rasops_info *ri, long attr) 120 { 121 uint16_t *stamp = (uint16_t *)ri->ri_stamp; 122 int i, fg, bg; 123 124 fg = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf] & 0xf; 125 bg = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf] & 0xf; 126 ri->ri_stamp_attr = attr; 127 128 for (i = 0; i < 16; i++) { 129 #if BYTE_ORDER == BIG_ENDIAN 130 #define NEED_LITTLE_ENDIAN_STAMP RI_BSWAP 131 #else 132 #define NEED_LITTLE_ENDIAN_STAMP 0 133 #endif 134 if ((ri->ri_flg & RI_BSWAP) == NEED_LITTLE_ENDIAN_STAMP) { 135 /* little endian */ 136 stamp[i] = (i & 1 ? fg : bg) << 12; 137 stamp[i] |= (i & 2 ? fg : bg) << 8; 138 stamp[i] |= (i & 4 ? fg : bg) << 4; 139 stamp[i] |= (i & 8 ? fg : bg) << 0; 140 } else { 141 /* big endian */ 142 stamp[i] = (i & 1 ? fg : bg) << 0; 143 stamp[i] |= (i & 2 ? fg : bg) << 4; 144 stamp[i] |= (i & 4 ? fg : bg) << 8; 145 stamp[i] |= (i & 8 ? fg : bg) << 12; 146 } 147 } 148 } 149 150 #define RASOPS_DEPTH 4 151 152 #define RASOPS_WIDTH 8 153 #include "rasops_putchar_width.h" 154 #undef RASOPS_WIDTH 155 156 #define RASOPS_WIDTH 12 157 #include "rasops_putchar_width.h" 158 #undef RASOPS_WIDTH 159 160 #define RASOPS_WIDTH 16 161 #include "rasops_putchar_width.h" 162 #undef RASOPS_WIDTH 163 164 #endif /* !RASOPS_SMALL */ 165 166 /* 167 * Grab routines common to depths where (bpp < 8) 168 */ 169 #define NAME(ident) rasops4_##ident 170 #define PIXEL_SHIFT 3 171 172 #include <dev/rasops/rasops_bitops.h> 173
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