rasops1.c revision 1.26
1 /* $NetBSD: rasops1.c,v 1.26 2019/07/24 18:33:49 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 1.26 2019/07/24 18:33:49 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 #include <dev/rasops/rasops.h> 45 #include <dev/rasops/rasops_masks.h> 46 47 static void rasops1_copycols(void *, int, int, int, int); 48 static void rasops1_erasecols(void *, int, int, int, long); 49 static void rasops1_do_cursor(struct rasops_info *); 50 static void rasops1_putchar(void *, int, int col, u_int, long); 51 #ifndef RASOPS_SMALL 52 static void rasops1_putchar8(void *, int, int col, u_int, long); 53 static void rasops1_putchar16(void *, int, int col, u_int, long); 54 #endif 55 56 /* 57 * Initialize rasops_info struct for this colordepth. 58 */ 59 void 60 rasops1_init(struct rasops_info *ri) 61 { 62 63 switch (ri->ri_font->fontwidth) { 64 #ifndef RASOPS_SMALL 65 case 8: 66 ri->ri_ops.putchar = rasops1_putchar8; 67 break; 68 case 16: 69 ri->ri_ops.putchar = rasops1_putchar16; 70 break; 71 #endif 72 default: 73 ri->ri_ops.putchar = rasops1_putchar; 74 break; 75 } 76 77 if ((ri->ri_font->fontwidth & 7) != 0) { 78 ri->ri_ops.erasecols = rasops1_erasecols; 79 ri->ri_ops.copycols = rasops1_copycols; 80 ri->ri_do_cursor = rasops1_do_cursor; 81 } 82 } 83 84 /* 85 * Paint a single character. This is the generic version, this is ugly. 86 */ 87 static void 88 rasops1_putchar(void *cookie, int row, int col, u_int uc, long attr) 89 { 90 u_int fs, rs, fb, bg, fg, lmask, rmask; 91 uint32_t height, width; 92 struct rasops_info *ri = (struct rasops_info *)cookie; 93 struct wsdisplay_font *font = PICK_FONT(ri, uc); 94 uint32_t *rp, *hrp = NULL, tmp, tmp2; 95 uint8_t *fr; 96 97 #ifdef RASOPS_CLIPPING 98 /* Catches 'row < 0' case too */ 99 if ((unsigned)row >= (unsigned)ri->ri_rows) 100 return; 101 102 if ((unsigned)col >= (unsigned)ri->ri_cols) 103 return; 104 #endif 105 106 col *= ri->ri_font->fontwidth; 107 rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale + 108 ((col >> 3) & ~3)); 109 if (ri->ri_hwbits) 110 hrp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale + 111 ((col >> 3) & ~3)); 112 height = font->fontheight; 113 width = font->fontwidth; 114 col = col & 31; 115 rs = ri->ri_stride; 116 117 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 118 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 119 120 /* If fg and bg match this becomes a space character */ 121 if (fg == bg || uc == ' ') { 122 uc = (u_int)-1; 123 fr = 0; /* shutup gcc */ 124 fs = 0; /* shutup gcc */ 125 } else { 126 uc -= font->firstchar; 127 fr = (uint8_t *)font->data + uc * ri->ri_fontscale; 128 fs = font->stride; 129 } 130 131 /* Single word, one mask */ 132 if ((col + width) <= 32) { 133 rmask = rasops_pmask[col][width]; 134 lmask = ~rmask; 135 136 if (uc == (u_int)-1) { 137 bg &= rmask; 138 139 while (height--) { 140 tmp = (*rp & lmask) | bg; 141 *rp = tmp; 142 DELTA(rp, rs, uint32_t *); 143 if (ri->ri_hwbits) { 144 *hrp = tmp; 145 DELTA(hrp, rs, uint32_t *); 146 } 147 } 148 } else { 149 /* NOT fontbits if bg is white */ 150 if (bg) { 151 while (height--) { 152 fb = ~(fr[3] | (fr[2] << 8) | 153 (fr[1] << 16) | (fr[0] << 24)); 154 tmp = (*rp & lmask) 155 | (MBE(fb >> col) & rmask); 156 *rp = tmp; 157 158 fr += fs; 159 DELTA(rp, rs, uint32_t *); 160 if (ri->ri_hwbits) { 161 *hrp = tmp; 162 DELTA(hrp, rs, uint32_t *); 163 } 164 } 165 } else { 166 while (height--) { 167 fb = (fr[3] | (fr[2] << 8) | 168 (fr[1] << 16) | (fr[0] << 24)); 169 tmp = (*rp & lmask) 170 | (MBE(fb >> col) & rmask); 171 *rp = tmp; 172 173 fr += fs; 174 DELTA(rp, rs, uint32_t *); 175 if (ri->ri_hwbits) { 176 *hrp = tmp; 177 DELTA(hrp, rs, uint32_t *); 178 } 179 } 180 } 181 } 182 183 /* Do underline */ 184 if ((attr & WSATTR_UNDERLINE) != 0) { 185 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 186 tmp = (*rp & lmask) | (fg & rmask); 187 *rp = tmp; 188 if (ri->ri_hwbits) { 189 DELTA(hrp, -(ri->ri_stride << 1), uint32_t *); 190 *hrp = tmp; 191 } 192 } 193 } else { 194 lmask = ~rasops_lmask[col]; 195 rmask = ~rasops_rmask[(col + width) & 31]; 196 197 if (uc == (u_int)-1) { 198 width = bg & ~rmask; 199 bg = bg & ~lmask; 200 201 while (height--) { 202 tmp = (rp[0] & lmask) | bg; 203 tmp2 = (rp[1] & rmask) | width; 204 rp[0] = tmp; 205 rp[1] = tmp2; 206 DELTA(rp, rs, uint32_t *); 207 if (ri->ri_hwbits) { 208 hrp[0] = tmp; 209 hrp[1] = tmp2; 210 DELTA(hrp, rs, uint32_t *); 211 } 212 } 213 } else { 214 width = 32 - col; 215 216 /* NOT fontbits if bg is white */ 217 if (bg) { 218 while (height--) { 219 fb = ~(fr[3] | (fr[2] << 8) | 220 (fr[1] << 16) | (fr[0] << 24)); 221 222 tmp = (rp[0] & lmask) 223 | MBE((u_int)fb >> col); 224 225 tmp2 = (rp[1] & rmask) 226 | (MBE((u_int)fb << width) & ~rmask); 227 rp[0] = tmp; 228 rp[1] = tmp2; 229 fr += fs; 230 DELTA(rp, rs, uint32_t *); 231 if (ri->ri_hwbits) { 232 hrp[0] = tmp; 233 hrp[1] = tmp2; 234 DELTA(hrp, rs, uint32_t *); 235 } 236 } 237 } else { 238 while (height--) { 239 fb = (fr[3] | (fr[2] << 8) | 240 (fr[1] << 16) | (fr[0] << 24)); 241 242 tmp = (rp[0] & lmask) 243 | MBE(fb >> col); 244 245 tmp2 = (rp[1] & rmask) 246 | (MBE(fb << width) & ~rmask); 247 rp[0] = tmp; 248 rp[1] = tmp2; 249 fr += fs; 250 DELTA(rp, rs, uint32_t *); 251 if (ri->ri_hwbits) { 252 hrp[0] = tmp; 253 hrp[1] = tmp2; 254 DELTA(hrp, rs, uint32_t *); 255 } 256 } 257 } 258 } 259 260 /* Do underline */ 261 if ((attr & WSATTR_UNDERLINE) != 0) { 262 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 263 tmp = (rp[0] & lmask) | (fg & ~lmask); 264 tmp2 = (rp[1] & rmask) | (fg & ~rmask); 265 rp[0] = tmp; 266 rp[1] = tmp2; 267 if (ri->ri_hwbits) { 268 DELTA(hrp, -(ri->ri_stride << 1), uint32_t *); 269 hrp[0] = tmp; 270 hrp[1] = tmp2; 271 } 272 } 273 } 274 } 275 276 #ifndef RASOPS_SMALL 277 /* 278 * Paint a single character. This is for 8-pixel wide fonts. 279 */ 280 static void 281 rasops1_putchar8(void *cookie, int row, int col, u_int uc, long attr) 282 { 283 int height, fs, rs, bg, fg; 284 struct rasops_info *ri = (struct rasops_info *)cookie; 285 struct wsdisplay_font *font = PICK_FONT(ri, uc); 286 uint8_t *fr, *rp, *hrp = NULL; 287 288 #ifdef RASOPS_CLIPPING 289 /* Catches 'row < 0' case too */ 290 if ((unsigned)row >= (unsigned)ri->ri_rows) 291 return; 292 293 if ((unsigned)col >= (unsigned)ri->ri_cols) 294 return; 295 #endif 296 297 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 298 if (ri->ri_hwbits) 299 hrp = ri->ri_hwbits + row * ri->ri_yscale + col * ri->ri_xscale; 300 height = font->fontheight; 301 rs = ri->ri_stride; 302 303 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 304 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 305 306 /* If fg and bg match this becomes a space character */ 307 if (fg == bg || uc == ' ') { 308 while (height--) { 309 *rp = bg; 310 rp += rs; 311 if (ri->ri_hwbits) { 312 *hrp = bg; 313 hrp += rs; 314 } 315 } 316 } else { 317 uc -= font->firstchar; 318 fr = (uint8_t *)font->data + uc * ri->ri_fontscale; 319 fs = font->stride; 320 321 /* NOT fontbits if bg is white */ 322 if (bg) { 323 while (height--) { 324 *rp = ~*fr; 325 rp += rs; 326 if (ri->ri_hwbits) { 327 *hrp = ~*fr; 328 hrp += rs; 329 } 330 fr += fs; 331 332 } 333 } else { 334 while (height--) { 335 *rp = *fr; 336 rp += rs; 337 if (ri->ri_hwbits) { 338 *hrp = *fr; 339 hrp += rs; 340 } 341 fr += fs; 342 } 343 } 344 345 } 346 347 /* Do underline */ 348 if ((attr & WSATTR_UNDERLINE) != 0) { 349 rp[-(ri->ri_stride << 1)] = fg; 350 if (ri->ri_hwbits) { 351 hrp[-(ri->ri_stride << 1)] = fg; 352 } 353 } 354 } 355 356 /* 357 * Paint a single character. This is for 16-pixel wide fonts. 358 */ 359 static void 360 rasops1_putchar16(void *cookie, int row, int col, u_int uc, long attr) 361 { 362 int height, fs, rs, bg, fg; 363 struct rasops_info *ri = (struct rasops_info *)cookie; 364 struct wsdisplay_font *font = PICK_FONT(ri, uc); 365 uint8_t *fr, *rp, *hrp = NULL; 366 367 #ifdef RASOPS_CLIPPING 368 /* Catches 'row < 0' case too */ 369 if ((unsigned)row >= (unsigned)ri->ri_rows) 370 return; 371 372 if ((unsigned)col >= (unsigned)ri->ri_cols) 373 return; 374 #endif 375 376 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 377 if (ri->ri_hwbits) 378 hrp = ri->ri_hwbits + row * ri->ri_yscale + col * ri->ri_xscale; 379 height = font->fontheight; 380 rs = ri->ri_stride; 381 382 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 383 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 384 385 /* If fg and bg match this becomes a space character */ 386 if (fg == bg || uc == ' ') { 387 while (height--) { 388 /* XXX alignment?! */ 389 *(uint16_t *)rp = bg; 390 rp += rs; 391 if (ri->ri_hwbits) { 392 *(uint16_t *)hrp = bg; 393 hrp += rs; 394 } 395 } 396 } else { 397 uc -= font->firstchar; 398 fr = (uint8_t *)font->data + uc * ri->ri_fontscale; 399 fs = font->stride; 400 401 /* NOT fontbits if bg is white */ 402 if (bg) { 403 while (height--) { 404 rp[0] = ~fr[0]; 405 rp[1] = ~fr[1]; 406 rp += rs; 407 if (ri->ri_hwbits) { 408 hrp[0] = ~fr[0]; 409 hrp[1] = ~fr[1]; 410 hrp += rs; 411 } 412 fr += fs; 413 } 414 } else { 415 while (height--) { 416 rp[0] = fr[0]; 417 rp[1] = fr[1]; 418 rp += rs; 419 if (ri->ri_hwbits) { 420 hrp[0] = fr[0]; 421 hrp[1] = fr[1]; 422 hrp += rs; 423 } 424 fr += fs; 425 } 426 } 427 } 428 429 /* Do underline */ 430 if ((attr & WSATTR_UNDERLINE) != 0) { 431 /* XXX alignment?! */ 432 *(uint16_t *)(rp - (ri->ri_stride << 1)) = fg; 433 if (ri->ri_hwbits) { 434 *(uint16_t *)(hrp - (ri->ri_stride << 1)) = fg; 435 } 436 } 437 } 438 #endif /* !RASOPS_SMALL */ 439 440 /* 441 * Grab routines common to depths where (bpp < 8) 442 */ 443 #define NAME(ident) rasops1_##ident 444 #define PIXEL_SHIFT 0 445 446 #include <dev/rasops/rasops_bitops.h> 447
Indexes created Tue Sep 23 07:09:52 GMT 2025