rasops1.c revision 1.34
1 /* $NetBSD: rasops1.c,v 1.34 2019/08/02 04:39:09 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: rasops1.c,v 1.34 2019/08/02 04:39:09 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 1 47 #include <dev/rasops/rasops.h> 48 #include <dev/rasops/rasops_masks.h> 49 50 static void rasops1_copycols(void *, int, int, int, int); 51 static void rasops1_erasecols(void *, int, int, int, long); 52 static void rasops1_do_cursor(struct rasops_info *); 53 static void rasops1_putchar(void *, int, int col, u_int, long); 54 #ifndef RASOPS_SMALL 55 static void rasops1_putchar8(void *, int, int col, u_int, long); 56 static void rasops1_putchar16(void *, int, int col, u_int, long); 57 #endif 58 59 /* 60 * Initialize rasops_info struct for this colordepth. 61 */ 62 void 63 rasops1_init(struct rasops_info *ri) 64 { 65 66 if ((ri->ri_font->fontwidth & 7) != 0) { 67 ri->ri_ops.erasecols = rasops1_erasecols; 68 ri->ri_ops.copycols = rasops1_copycols; 69 ri->ri_do_cursor = rasops1_do_cursor; 70 } 71 72 switch (ri->ri_font->fontwidth) { 73 #ifndef RASOPS_SMALL 74 case 8: 75 ri->ri_ops.putchar = rasops1_putchar8; 76 break; 77 case 16: 78 ri->ri_ops.putchar = rasops1_putchar16; 79 break; 80 #endif 81 default: 82 ri->ri_ops.putchar = rasops1_putchar; 83 break; 84 } 85 } 86 87 /* 88 * Paint a single character. This is the generic version, this is ugly. 89 */ 90 static void 91 rasops1_putchar(void *cookie, int row, int col, u_int uc, long attr) 92 { 93 struct rasops_info *ri = (struct rasops_info *)cookie; 94 struct wsdisplay_font *font = PICK_FONT(ri, uc); 95 uint32_t fs, rs, fb, bg, fg, lmask, rmask; 96 uint32_t height, width; 97 uint32_t *rp, *hp, tmp, tmp0, tmp1; 98 uint8_t *fr; 99 bool space; 100 101 hp = NULL; /* XXX GCC */ 102 103 #ifdef RASOPS_CLIPPING 104 /* Catches 'row < 0' case too */ 105 if ((unsigned)row >= (unsigned)ri->ri_rows) 106 return; 107 108 if ((unsigned)col >= (unsigned)ri->ri_cols) 109 return; 110 #endif 111 112 col *= ri->ri_font->fontwidth; 113 rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale + 114 ((col >> 3) & ~3)); 115 if (ri->ri_hwbits) 116 hp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale + 117 ((col >> 3) & ~3)); 118 height = font->fontheight; 119 width = font->fontwidth; 120 col &= 31; 121 rs = ri->ri_stride; 122 123 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 124 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 125 126 /* If fg and bg match this becomes a space character */ 127 if (uc == ' ' || fg == bg) { 128 space = true; 129 fr = NULL; /* XXX GCC */ 130 fs = 0; /* XXX GCC */ 131 } else { 132 space = false; 133 fr = FONT_GLYPH(uc, font, ri); 134 fs = font->stride; 135 } 136 137 if (col + width <= 32) { 138 /* Single word, only one mask */ 139 140 rmask = rasops_pmask[col][width & 31]; 141 lmask = ~rmask; 142 143 if (space) { 144 bg &= rmask; 145 while (height--) { 146 tmp = (*rp & lmask) | bg; 147 *rp = tmp; 148 DELTA(rp, rs, uint32_t *); 149 if (ri->ri_hwbits) { 150 *hp = tmp; 151 DELTA(hp, rs, uint32_t *); 152 } 153 } 154 } else { 155 while (height--) { 156 tmp = *rp & lmask; 157 fb = be32uatoh(fr); 158 fr += fs; 159 if (bg) 160 fb = ~fb; 161 tmp |= (MBE(fb >> col) & rmask); 162 *rp = tmp; 163 DELTA(rp, rs, uint32_t *); 164 if (ri->ri_hwbits) { 165 *hp = tmp; 166 DELTA(hp, rs, uint32_t *); 167 } 168 } 169 } 170 171 /* Do underline */ 172 if ((attr & WSATTR_UNDERLINE) != 0) { 173 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 174 tmp = (*rp & lmask) | (fg & rmask); 175 *rp = tmp; 176 if (ri->ri_hwbits) { 177 DELTA(hp, -(ri->ri_stride << 1), uint32_t *); 178 *hp = tmp; 179 } 180 } 181 } else { 182 /* Word boundary, two masks needed */ 183 184 lmask = ~rasops_lmask[col]; 185 rmask = ~rasops_rmask[(col + width) & 31]; 186 187 if (space) { 188 width = bg & ~rmask; 189 bg = bg & ~lmask; 190 while (height--) { 191 tmp0 = (rp[0] & lmask) | bg; 192 tmp1 = (rp[1] & rmask) | width; 193 rp[0] = tmp0; 194 rp[1] = tmp1; 195 DELTA(rp, rs, uint32_t *); 196 if (ri->ri_hwbits) { 197 hp[0] = tmp0; 198 hp[1] = tmp1; 199 DELTA(hp, rs, uint32_t *); 200 } 201 } 202 } else { 203 width = 32 - col; 204 while (height--) { 205 tmp0 = rp[0] & lmask; 206 tmp1 = rp[1] & rmask; 207 fb = be32uatoh(fr); 208 fr += fs; 209 if (bg) 210 fb = ~fb; 211 tmp0 |= MBE(fb >> col); 212 tmp1 |= (MBE(fb << width) & ~rmask); 213 rp[0] = tmp0; 214 rp[1] = tmp1; 215 DELTA(rp, rs, uint32_t *); 216 if (ri->ri_hwbits) { 217 hp[0] = tmp0; 218 hp[1] = tmp1; 219 DELTA(hp, rs, uint32_t *); 220 } 221 } 222 } 223 224 /* Do underline */ 225 if ((attr & WSATTR_UNDERLINE) != 0) { 226 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 227 tmp0 = (rp[0] & lmask) | (fg & ~lmask); 228 tmp1 = (rp[1] & rmask) | (fg & ~rmask); 229 rp[0] = tmp0; 230 rp[1] = tmp1; 231 if (ri->ri_hwbits) { 232 DELTA(hp, -(ri->ri_stride << 1), uint32_t *); 233 hp[0] = tmp0; 234 hp[1] = tmp1; 235 } 236 } 237 } 238 } 239 240 #ifndef RASOPS_SMALL 241 242 #define RASOPS_WIDTH 8 243 #include "rasops1_putchar_width.h" 244 #undef RASOPS_WIDTH 245 246 #define RASOPS_WIDTH 16 247 #include "rasops1_putchar_width.h" 248 #undef RASOPS_WIDTH 249 250 #endif /* !RASOPS_SMALL */ 251 252 /* 253 * Grab routines common to depths where (bpp < 8) 254 */ 255 #include <dev/rasops/rasops_bitops.h> 256
Indexes created Sat Sep 27 14:09:57 GMT 2025