rasops2.c revision 1.3
1 /* $NetBSD: rasops2.c,v 1.3 1999/07/21 19:19:04 ad 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 Andy 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include "opt_rasops.h" 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: rasops2.c,v 1.3 1999/07/21 19:19:04 ad Exp $"); 42 43 #include <sys/types.h> 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/time.h> 47 #include <machine/endian.h> 48 49 #include <dev/wscons/wsdisplayvar.h> 50 #include <dev/wscons/wsconsio.h> 51 #include <dev/rasops/rasops.h> 52 #include <dev/rasops/rasops_masks.h> 53 54 static void rasops2_putchar __P((void *, int, int col, u_int, long)); 55 static void rasops2_putchar8 __P((void *, int, int col, u_int, long)); 56 static void rasops2_putchar12 __P((void *, int, int col, u_int, long)); 57 static void rasops2_putchar16 __P((void *, int, int col, u_int, long)); 58 static void rasops2_copycols __P((void *, int, int, int, int)); 59 static void rasops2_erasecols __P((void *, int, int, int, long)); 60 static void rasops2_do_cursor __P((struct rasops_info *)); 61 static void rasops2_makestamp __P((struct rasops_info *, long)); 62 63 void rasops2_init __P((struct rasops_info *ri)); 64 65 /* 66 * 4x1 stamp for optimized character blitting 67 */ 68 static int8_t stamp[16]; 69 static long stamp_attr; 70 static int stamp_mutex; /* XXX see note in README */ 71 72 /* 73 * Initialize rasops_info struct for this colordepth. 74 */ 75 void 76 rasops2_init(ri) 77 struct rasops_info *ri; 78 { 79 80 switch (ri->ri_font->fontwidth) { 81 case 8: 82 ri->ri_ops.putchar = rasops2_putchar8; 83 break; 84 case 12: 85 ri->ri_ops.putchar = rasops2_putchar12; 86 break; 87 case 16: 88 ri->ri_ops.putchar = rasops2_putchar16; 89 break; 90 default: 91 panic("fontwidth not 8/12/16 - fixme!"); 92 ri->ri_ops.putchar = rasops2_putchar; 93 break; 94 } 95 96 if ((ri->ri_font->fontwidth & 3) != 0) { 97 ri->ri_ops.erasecols = rasops2_erasecols; 98 ri->ri_ops.copycols = rasops2_copycols; 99 ri->ri_do_cursor = rasops2_do_cursor; 100 } 101 } 102 103 104 /* 105 * Recompute the blitting stamp. 106 */ 107 static void 108 rasops2_makestamp(ri, attr) 109 struct rasops_info *ri; 110 long attr; 111 { 112 int i; 113 int32_t fg, bg; 114 115 fg = ri->ri_devcmap[(attr >> 24) & 15] & 3; 116 bg = ri->ri_devcmap[(attr >> 16) & 15] & 3; 117 stamp_attr = attr; 118 119 for (i = 0; i < 16; i++) { 120 stamp[i] = (i & 1 ? fg : bg); 121 stamp[i] |= (i & 2 ? fg : bg) << 2; 122 stamp[i] |= (i & 4 ? fg : bg) << 4; 123 stamp[i] |= (i & 8 ? fg : bg) << 6; 124 } 125 } 126 127 #if 0 128 /* 129 * Paint a single character. This is the generic version, this is ugly. 130 */ 131 static void 132 rasops2_putchar(cookie, row, col, uc, attr) 133 void *cookie; 134 int row, col; 135 u_int uc; 136 long attr; 137 { 138 int height, width, fs, rs, fb, bg, fg, lmask, rmask; 139 struct rasops_info *ri; 140 int32_t *rp; 141 u_char *fr; 142 143 ri = (struct rasops_info *)cookie; 144 145 #ifdef RASOPS_CLIPPING 146 /* Catches 'row < 0' case too */ 147 if ((unsigned)row >= (unsigned)ri->ri_rows) 148 return; 149 150 if ((unsigned)col >= (unsigned)ri->ri_cols) 151 return; 152 #endif 153 154 width = ri->ri_font->fontwidth << 1; 155 height = ri->ri_font->fontheight; 156 col *= width; 157 rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); 158 col = col & 31; 159 rs = ri->ri_stride; 160 161 bg = ri->ri_devcmap[(attr >> 16) & 15]; 162 fg = ri->ri_devcmap[(attr >> 24) & 15]; 163 164 /* If fg and bg match this becomes a space character */ 165 if (fg == bg || uc == ' ') { 166 uc = (u_int)-1; 167 fr = 0; /* shutup gcc */ 168 fs = 0; /* shutup gcc */ 169 } else { 170 uc -= ri->ri_font->firstchar; 171 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 172 fs = ri->ri_font->stride; 173 } 174 175 /* Single word, one mask */ 176 if ((col + width) <= 32) { 177 rmask = rasops_pmask[col][width]; 178 lmask = ~rmask; 179 180 if (uc == (u_int)-1) { 181 bg &= rmask; 182 183 while (height--) { 184 *rp = (*rp & lmask) | bg; 185 DELTA(rp, rs, int32_t *); 186 } 187 } else { 188 while (height--) { 189 /* get bits, mask */ 190 /* compose sl */ 191 /* mask sl */ 192 /* put word */ 193 } 194 } 195 196 /* Do underline */ 197 if (attr & 1) { 198 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 199 *rp = (*rp & lmask) | (fg & rmask); 200 } 201 } else { 202 lmask = ~rasops_lmask[col]; 203 rmask = ~rasops_rmask[(col + width) & 31]; 204 205 if (uc == (u_int)-1) { 206 bg = bg & ~lmask; 207 width = bg & ~rmask; 208 209 while (height--) { 210 rp[0] = (rp[0] & lmask) | bg; 211 rp[1] = (rp[1] & rmask) | width; 212 DELTA(rp, rs, int32_t *); 213 } 214 } else { 215 width = 32 - col; 216 217 /* NOT fontbits if bg is white */ 218 while (height--) { 219 fb = ~(fr[3] | (fr[2] << 8) | 220 (fr[1] << 16) | (fr[0] << 24)); 221 222 rp[0] = (rp[0] & lmask) 223 | MBE((u_int)fb >> col); 224 225 rp[1] = (rp[1] & rmask) 226 | (MBE((u_int)fb << width) & ~rmask); 227 228 fr += fs; 229 DELTA(rp, rs, int32_t *); 230 } 231 } 232 233 /* Do underline */ 234 if (attr & 1) { 235 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 236 rp[0] = (rp[0] & lmask) | (fg & ~lmask); 237 rp[1] = (rp[1] & rmask) | (fg & ~rmask); 238 } 239 } 240 } 241 #endif 242 243 /* 244 * Put a single character. This is the generic version. 245 */ 246 static void 247 rasops2_putchar(cookie, row, col, uc, attr) 248 void *cookie; 249 int row, col; 250 u_int uc; 251 long attr; 252 { 253 254 /* XXX punt */ 255 } 256 257 258 /* 259 * Put a single character. This is for 8-pixel wide fonts. 260 */ 261 static void 262 rasops2_putchar8(cookie, row, col, uc, attr) 263 void *cookie; 264 int row, col; 265 u_int uc; 266 long attr; 267 { 268 struct rasops_info *ri; 269 int height, fs, rs; 270 u_char *fr, *rp; 271 272 /* Can't risk remaking the stamp if it's already in use */ 273 if (stamp_mutex++) { 274 stamp_mutex--; 275 rasops2_putchar(cookie, row, col, uc, attr); 276 return; 277 } 278 279 ri = (struct rasops_info *)cookie; 280 281 #ifdef RASOPS_CLIPPING 282 /* Catches 'row < 0' case too */ 283 if ((unsigned)row >= (unsigned)ri->ri_rows) { 284 stamp_mutex--; 285 return; 286 } 287 288 if ((unsigned)col >= (unsigned)ri->ri_cols) { 289 stamp_mutex--; 290 return; 291 } 292 #endif 293 294 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 295 height = ri->ri_font->fontheight; 296 rs = ri->ri_stride; 297 298 /* Recompute stamp? */ 299 if (attr != stamp_attr) 300 rasops2_makestamp(ri, attr); 301 302 if (uc == ' ') { 303 while (height--) { 304 *(int16_t *)rp = stamp[0]; 305 rp += rs; 306 } 307 } else { 308 uc -= ri->ri_font->firstchar; 309 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 310 fs = ri->ri_font->stride; 311 312 while (height--) { 313 rp[0] = stamp[(*fr >> 4) & 15]; 314 rp[1] = stamp[*fr & 15]; 315 fr += fs; 316 rp += rs; 317 } 318 } 319 320 /* Do underline */ 321 if (attr & 1) 322 *(int16_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 323 324 stamp_mutex--; 325 } 326 327 328 /* 329 * Put a single character. This is for 12-pixel wide fonts. 330 */ 331 static void 332 rasops2_putchar12(cookie, row, col, uc, attr) 333 void *cookie; 334 int row, col; 335 u_int uc; 336 long attr; 337 { 338 struct rasops_info *ri; 339 int height, fs, rs; 340 u_char *fr, *rp; 341 342 /* Can't risk remaking the stamp if it's already in use */ 343 if (stamp_mutex++) { 344 stamp_mutex--; 345 rasops2_putchar(cookie, row, col, uc, attr); 346 return; 347 } 348 349 ri = (struct rasops_info *)cookie; 350 351 #ifdef RASOPS_CLIPPING 352 /* Catches 'row < 0' case too */ 353 if ((unsigned)row >= (unsigned)ri->ri_rows) { 354 stamp_mutex--; 355 return; 356 } 357 358 if ((unsigned)col >= (unsigned)ri->ri_cols) { 359 stamp_mutex--; 360 return; 361 } 362 #endif 363 364 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 365 height = ri->ri_font->fontheight; 366 rs = ri->ri_stride; 367 368 /* Recompute stamp? */ 369 if (attr != stamp_attr) 370 rasops2_makestamp(ri, attr); 371 372 if (uc == ' ') { 373 while (height--) { 374 rp[0] = stamp[0]; 375 rp[1] = stamp[0]; 376 rp[2] = stamp[0]; 377 rp += rs; 378 } 379 } else { 380 uc -= ri->ri_font->firstchar; 381 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 382 fs = ri->ri_font->stride; 383 384 while (height--) { 385 rp[0] = stamp[(fr[0] >> 4) & 15]; 386 rp[1] = stamp[fr[0] & 15]; 387 rp[2] = stamp[(fr[1] >> 4) & 15]; 388 fr += fs; 389 rp += rs; 390 } 391 } 392 393 /* Do underline */ 394 if (attr & 1) { 395 rp -= ri->ri_stride << 1; 396 rp[0] = stamp[15]; 397 rp[1] = stamp[15]; 398 rp[2] = stamp[15]; 399 } 400 401 stamp_mutex--; 402 } 403 404 405 /* 406 * Put a single character. This is for 16-pixel wide fonts. 407 */ 408 static void 409 rasops2_putchar16(cookie, row, col, uc, attr) 410 void *cookie; 411 int row, col; 412 u_int uc; 413 long attr; 414 { 415 struct rasops_info *ri; 416 int height, fs, rs; 417 u_char *fr, *rp; 418 419 /* Can't risk remaking the stamp if it's already in use */ 420 if (stamp_mutex++) { 421 stamp_mutex--; 422 rasops2_putchar(cookie, row, col, uc, attr); 423 return; 424 } 425 426 ri = (struct rasops_info *)cookie; 427 428 #ifdef RASOPS_CLIPPING 429 /* Catches 'row < 0' case too */ 430 if ((unsigned)row >= (unsigned)ri->ri_rows) { 431 stamp_mutex--; 432 return; 433 } 434 435 if ((unsigned)col >= (unsigned)ri->ri_cols) { 436 stamp_mutex--; 437 return; 438 } 439 #endif 440 441 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 442 height = ri->ri_font->fontheight; 443 rs = ri->ri_stride; 444 445 /* Recompute stamp? */ 446 if (attr != stamp_attr) 447 rasops2_makestamp(ri, attr); 448 449 if (uc == ' ') { 450 while (height--) { 451 *(int32_t *)rp = stamp[0]; 452 rp += rs; 453 } 454 } else { 455 uc -= ri->ri_font->firstchar; 456 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 457 fs = ri->ri_font->stride; 458 459 while (height--) { 460 rp[0] = stamp[(fr[0] >> 4) & 15]; 461 rp[1] = stamp[fr[0] & 15]; 462 rp[2] = stamp[(fr[1] >> 4) & 15]; 463 rp[3] = stamp[fr[1] & 15]; 464 fr += fs; 465 rp += rs; 466 } 467 } 468 469 /* Do underline */ 470 if (attr & 1) 471 *(int32_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 472 473 stamp_mutex--; 474 } 475 476 /* 477 * Grab routines common to depths where (bpp < 8) 478 */ 479 #define NAME(ident) rasops2_##ident 480 #define PIXEL_SHIFT 1 481 482 #include <dev/rasops/rasops_bitops.h> 483
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