1 /* $NetBSD: rasops1.c,v 1.37 2019/08/10 01:24:17 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 1.37 2019/08/10 01:24:17 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 1 48 #include <dev/rasops/rasops.h> 49 #include <dev/rasops/rasops_masks.h> 50 51 static void rasops1_copycols(void *, int, int, int, int); 52 static void rasops1_erasecols(void *, int, int, int, long); 53 static void rasops1_do_cursor(struct rasops_info *); 54 static void rasops1_putchar(void *, int, int col, u_int, long); 55 #ifndef RASOPS_SMALL 56 static void rasops1_putchar8(void *, int, int col, u_int, long); 57 static void rasops1_putchar16(void *, int, int col, u_int, long); 58 #endif 59 60 /* 61 * Initialize rasops_info struct for this colordepth. 62 */ 63 void 64 rasops1_init(struct rasops_info *ri) 65 { 66 67 if ((ri->ri_font->fontwidth & 7) != 0) { 68 ri->ri_ops.erasecols = rasops1_erasecols; 69 ri->ri_ops.copycols = rasops1_copycols; 70 ri->ri_do_cursor = rasops1_do_cursor; 71 } 72 73 switch (ri->ri_font->fontwidth) { 74 #ifndef RASOPS_SMALL 75 case 8: 76 ri->ri_ops.putchar = rasops1_putchar8; 77 break; 78 case 16: 79 ri->ri_ops.putchar = rasops1_putchar16; 80 break; 81 #endif 82 default: 83 ri->ri_ops.putchar = rasops1_putchar; 84 break; 85 } 86 } 87 88 /* 89 * Paint a single character. This is the generic version, this is ugly. 90 */ 91 static void 92 rasops1_putchar(void *cookie, int row, int col, u_int uc, long attr) 93 { 94 struct rasops_info *ri = (struct rasops_info *)cookie; 95 struct wsdisplay_font *font = PICK_FONT(ri, uc); 96 int height, width; 97 uint32_t bg, fg, lbg, rbg, fb, lmask, rmask, tmp, tmp0, tmp1; 98 uint32_t *rp, *hp; 99 uint8_t *fr; 100 bool space; 101 102 hp = NULL; /* XXX GCC */ 103 104 if (__predict_false(!CHAR_IN_FONT(uc, font))) 105 return; 106 107 #ifdef RASOPS_CLIPPING 108 /* Catches 'row < 0' case too */ 109 if ((unsigned)row >= (unsigned)ri->ri_rows) 110 return; 111 112 if ((unsigned)col >= (unsigned)ri->ri_cols) 113 return; 114 #endif 115 116 height = font->fontheight; 117 width = font->fontwidth; 118 col *= width; 119 120 rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale + 121 ((col >> 3) & ~3)); 122 if (ri->ri_hwbits) 123 hp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale + 124 ((col >> 3) & ~3)); 125 126 col &= 31; 127 128 bg = ATTR_BG(ri, attr); 129 fg = ATTR_FG(ri, attr); 130 131 /* If fg and bg match this becomes a space character */ 132 if (uc == ' ' || __predict_false(fg == bg)) { 133 space = true; 134 fr = NULL; /* XXX GCC */ 135 } else { 136 space = false; 137 fr = FONT_GLYPH(uc, font, ri); 138 } 139 140 if (col + width <= 32) { 141 /* Single word, only one mask */ 142 rmask = rasops_pmask[col][width & 31]; 143 lmask = ~rmask; 144 145 if (space) { 146 bg &= rmask; 147 while (height--) { 148 tmp = (*rp & lmask) | bg; 149 *rp = tmp; 150 if (ri->ri_hwbits) { 151 *hp = tmp; 152 DELTA(hp, ri->ri_stride, uint32_t *); 153 } 154 DELTA(rp, ri->ri_stride, uint32_t *); 155 } 156 } else { 157 while (height--) { 158 fb = rasops_be32uatoh(fr); 159 fr += font->stride; 160 if (bg) 161 fb = ~fb; 162 163 tmp = *rp & lmask; 164 tmp |= (MBE(fb >> col) & rmask); 165 *rp = tmp; 166 167 if (ri->ri_hwbits) { 168 *hp = tmp; 169 DELTA(hp, ri->ri_stride, uint32_t *); 170 } 171 172 DELTA(rp, ri->ri_stride, uint32_t *); 173 } 174 } 175 176 /* Do underline */ 177 if ((attr & WSATTR_UNDERLINE) != 0) { 178 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, uint32_t *); 179 if (ri->ri_hwbits) 180 DELTA(hp, - ri->ri_stride * ri->ri_ul.off, 181 uint32_t *); 182 183 for (height = ri->ri_ul.height; height; height--) { 184 DELTA(rp, - ri->ri_stride, uint32_t *); 185 tmp = (*rp & lmask) | (fg & rmask); 186 *rp = tmp; 187 if (ri->ri_hwbits) { 188 DELTA(hp, - ri->ri_stride, uint32_t *); 189 *hp = tmp; 190 } 191 } 192 } 193 } else { 194 /* Word boundary, two masks needed */ 195 lmask = ~rasops_lmask[col]; 196 rmask = ~rasops_rmask[(col + width) & 31]; 197 198 if (space) { 199 lbg = bg & ~lmask; 200 rbg = bg & ~rmask; 201 202 while (height--) { 203 tmp0 = (rp[0] & lmask) | lbg; 204 tmp1 = (rp[1] & rmask) | rbg; 205 206 rp[0] = tmp0; 207 rp[1] = tmp1; 208 209 if (ri->ri_hwbits) { 210 hp[0] = tmp0; 211 hp[1] = tmp1; 212 DELTA(hp, ri->ri_stride, uint32_t *); 213 } 214 215 DELTA(rp, ri->ri_stride, uint32_t *); 216 } 217 } else { 218 width = 32 - col; 219 220 while (height--) { 221 fb = rasops_be32uatoh(fr); 222 fr += font->stride; 223 if (bg) 224 fb = ~fb; 225 226 tmp0 = rp[0] & lmask; 227 tmp0 |= MBE(fb >> col); 228 229 tmp1 = rp[1] & rmask; 230 tmp1 |= (MBE(fb << width) & ~rmask); 231 232 rp[0] = tmp0; 233 rp[1] = tmp1; 234 235 if (ri->ri_hwbits) { 236 hp[0] = tmp0; 237 hp[1] = tmp1; 238 DELTA(hp, ri->ri_stride, uint32_t *); 239 } 240 241 DELTA(rp, ri->ri_stride, uint32_t *); 242 } 243 } 244 245 /* Do underline */ 246 if ((attr & WSATTR_UNDERLINE) != 0) { 247 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, uint32_t *); 248 if (ri->ri_hwbits) 249 DELTA(hp, - ri->ri_stride * ri->ri_ul.off, 250 uint32_t *); 251 252 for (height = ri->ri_ul.height; height; height--) { 253 DELTA(rp, - ri->ri_stride, uint32_t *); 254 tmp0 = (rp[0] & lmask) | (fg & ~lmask); 255 tmp1 = (rp[1] & rmask) | (fg & ~rmask); 256 rp[0] = tmp0; 257 rp[1] = tmp1; 258 if (ri->ri_hwbits) { 259 DELTA(hp, - ri->ri_stride, uint32_t *); 260 hp[0] = tmp0; 261 hp[1] = tmp1; 262 } 263 } 264 } 265 } 266 } 267 268 #ifndef RASOPS_SMALL 269 /* 270 * Width-optimized putchar functions 271 */ 272 #define RASOPS_WIDTH 8 273 #include <dev/rasops/rasops1_putchar_width.h> 274 #undef RASOPS_WIDTH 275 276 #define RASOPS_WIDTH 16 277 #include <dev/rasops/rasops1_putchar_width.h> 278 #undef RASOPS_WIDTH 279 280 #endif /* !RASOPS_SMALL */ 281 282 /* 283 * Grab routines common to depths where (bpp < 8) 284 */ 285 #include <dev/rasops/rasops_bitops.h> 286
Indexes created Sun Sep 21 20:09:37 GMT 2025