rasops2.c revision 1.6.4.2
1 /* $NetBSD: rasops2.c,v 1.6.4.2 2001/11/14 19:15:54 nathanw 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 * 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 <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: rasops2.c,v 1.6.4.2 2001/11/14 19:15:54 nathanw Exp $"); 41 42 #include "opt_rasops.h" 43 44 #include <sys/types.h> 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/time.h> 48 #include <machine/endian.h> 49 50 #include <dev/wscons/wsdisplayvar.h> 51 #include <dev/wscons/wsconsio.h> 52 #include <dev/rasops/rasops.h> 53 #include <dev/rasops/rasops_masks.h> 54 55 static void rasops2_copycols __P((void *, int, int, int, int)); 56 static void rasops2_erasecols __P((void *, int, int, int, long)); 57 static void rasops2_do_cursor __P((struct rasops_info *)); 58 static void rasops2_putchar __P((void *, int, int col, u_int, long)); 59 #ifndef RASOPS_SMALL 60 static void rasops2_putchar8 __P((void *, int, int col, u_int, long)); 61 static void rasops2_putchar12 __P((void *, int, int col, u_int, long)); 62 static void rasops2_putchar16 __P((void *, int, int col, u_int, long)); 63 static void rasops2_makestamp __P((struct rasops_info *, long)); 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 #endif 72 73 /* 74 * Initialize rasops_info struct for this colordepth. 75 */ 76 void 77 rasops2_init(ri) 78 struct rasops_info *ri; 79 { 80 81 switch (ri->ri_font->fontwidth) { 82 #ifndef RASOPS_SMALL 83 case 8: 84 ri->ri_ops.putchar = rasops2_putchar8; 85 break; 86 case 12: 87 ri->ri_ops.putchar = rasops2_putchar12; 88 break; 89 case 16: 90 ri->ri_ops.putchar = rasops2_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 = rasops2_putchar; 96 break; 97 } 98 99 if ((ri->ri_font->fontwidth & 3) != 0) { 100 ri->ri_ops.erasecols = rasops2_erasecols; 101 ri->ri_ops.copycols = rasops2_copycols; 102 ri->ri_do_cursor = rasops2_do_cursor; 103 } 104 } 105 106 #ifdef notyet 107 /* 108 * Paint a single character. This is the generic version, this is ugly. 109 */ 110 static void 111 rasops2_putchar(cookie, row, col, uc, attr) 112 void *cookie; 113 int row, col; 114 u_int uc; 115 long attr; 116 { 117 int height, width, fs, rs, fb, bg, fg, lmask, rmask; 118 struct rasops_info *ri; 119 int32_t *rp; 120 u_char *fr; 121 122 ri = (struct rasops_info *)cookie; 123 124 #ifdef RASOPS_CLIPPING 125 /* Catches 'row < 0' case too */ 126 if ((unsigned)row >= (unsigned)ri->ri_rows) 127 return; 128 129 if ((unsigned)col >= (unsigned)ri->ri_cols) 130 return; 131 #endif 132 133 width = ri->ri_font->fontwidth << 1; 134 height = ri->ri_font->fontheight; 135 col *= width; 136 rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); 137 col = col & 31; 138 rs = ri->ri_stride; 139 140 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 141 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 142 143 /* If fg and bg match this becomes a space character */ 144 if (fg == bg || uc == ' ') { 145 uc = (u_int)-1; 146 fr = 0; /* shutup gcc */ 147 fs = 0; /* shutup gcc */ 148 } else { 149 uc -= ri->ri_font->firstchar; 150 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 151 fs = ri->ri_font->stride; 152 } 153 154 /* Single word, one mask */ 155 if ((col + width) <= 32) { 156 rmask = rasops_pmask[col][width]; 157 lmask = ~rmask; 158 159 if (uc == (u_int)-1) { 160 bg &= rmask; 161 162 while (height--) { 163 *rp = (*rp & lmask) | bg; 164 DELTA(rp, rs, int32_t *); 165 } 166 } else { 167 while (height--) { 168 /* get bits, mask */ 169 /* compose sl */ 170 /* mask sl */ 171 /* put word */ 172 } 173 } 174 175 /* Do underline */ 176 if (attr & 1) { 177 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 178 *rp = (*rp & lmask) | (fg & rmask); 179 } 180 } else { 181 lmask = ~rasops_lmask[col]; 182 rmask = ~rasops_rmask[(col + width) & 31]; 183 184 if (uc == (u_int)-1) { 185 bg = bg & ~lmask; 186 width = bg & ~rmask; 187 188 while (height--) { 189 rp[0] = (rp[0] & lmask) | bg; 190 rp[1] = (rp[1] & rmask) | width; 191 DELTA(rp, rs, int32_t *); 192 } 193 } else { 194 width = 32 - col; 195 196 /* NOT fontbits if bg is white */ 197 while (height--) { 198 fb = ~(fr[3] | (fr[2] << 8) | 199 (fr[1] << 16) | (fr[0] << 24)); 200 201 rp[0] = (rp[0] & lmask) 202 | MBE((u_int)fb >> col); 203 204 rp[1] = (rp[1] & rmask) 205 | (MBE((u_int)fb << width) & ~rmask); 206 207 fr += fs; 208 DELTA(rp, rs, int32_t *); 209 } 210 } 211 212 /* Do underline */ 213 if (attr & 1) { 214 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 215 rp[0] = (rp[0] & lmask) | (fg & ~lmask); 216 rp[1] = (rp[1] & rmask) | (fg & ~rmask); 217 } 218 } 219 } 220 #endif 221 222 /* 223 * Put a single character. This is the generic version. 224 */ 225 static void 226 rasops2_putchar(cookie, row, col, uc, attr) 227 void *cookie; 228 int row, col; 229 u_int uc; 230 long attr; 231 { 232 233 /* XXX punt */ 234 } 235 236 #ifndef RASOPS_SMALL 237 /* 238 * Recompute the blitting stamp. 239 */ 240 static void 241 rasops2_makestamp(ri, attr) 242 struct rasops_info *ri; 243 long attr; 244 { 245 int i, fg, bg; 246 247 fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 3; 248 bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 3; 249 stamp_attr = attr; 250 251 for (i = 0; i < 16; i++) { 252 stamp[i] = (i & 1 ? fg : bg); 253 stamp[i] |= (i & 2 ? fg : bg) << 2; 254 stamp[i] |= (i & 4 ? fg : bg) << 4; 255 stamp[i] |= (i & 8 ? fg : bg) << 6; 256 } 257 } 258 259 /* 260 * Put a single character. This is for 8-pixel wide fonts. 261 */ 262 static void 263 rasops2_putchar8(cookie, row, col, uc, attr) 264 void *cookie; 265 int row, col; 266 u_int uc; 267 long attr; 268 { 269 struct rasops_info *ri; 270 int height, fs, rs; 271 u_char *fr, *rp; 272 273 /* Can't risk remaking the stamp if it's already in use */ 274 if (stamp_mutex++) { 275 stamp_mutex--; 276 rasops2_putchar(cookie, row, col, uc, attr); 277 return; 278 } 279 280 ri = (struct rasops_info *)cookie; 281 282 #ifdef RASOPS_CLIPPING 283 /* Catches 'row < 0' case too */ 284 if ((unsigned)row >= (unsigned)ri->ri_rows) { 285 stamp_mutex--; 286 return; 287 } 288 289 if ((unsigned)col >= (unsigned)ri->ri_cols) { 290 stamp_mutex--; 291 return; 292 } 293 #endif 294 295 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 296 height = ri->ri_font->fontheight; 297 rs = ri->ri_stride; 298 299 /* Recompute stamp? */ 300 if (attr != stamp_attr) 301 rasops2_makestamp(ri, attr); 302 303 if (uc == ' ') { 304 int8_t c = stamp[0]; 305 while (height--) { 306 *(int16_t *)rp = c; 307 rp += rs; 308 } 309 } else { 310 uc -= ri->ri_font->firstchar; 311 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 312 fs = ri->ri_font->stride; 313 314 while (height--) { 315 rp[0] = stamp[(*fr >> 4) & 0xf]; 316 rp[1] = stamp[*fr & 0xf]; 317 fr += fs; 318 rp += rs; 319 } 320 } 321 322 /* Do underline */ 323 if ((attr & 1) != 0) 324 *(int16_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 325 326 stamp_mutex--; 327 } 328 329 /* 330 * Put a single character. This is for 12-pixel wide fonts. 331 */ 332 static void 333 rasops2_putchar12(cookie, row, col, uc, attr) 334 void *cookie; 335 int row, col; 336 u_int uc; 337 long attr; 338 { 339 struct rasops_info *ri; 340 int height, fs, rs; 341 u_char *fr, *rp; 342 343 /* Can't risk remaking the stamp if it's already in use */ 344 if (stamp_mutex++) { 345 stamp_mutex--; 346 rasops2_putchar(cookie, row, col, uc, attr); 347 return; 348 } 349 350 ri = (struct rasops_info *)cookie; 351 352 #ifdef RASOPS_CLIPPING 353 /* Catches 'row < 0' case too */ 354 if ((unsigned)row >= (unsigned)ri->ri_rows) { 355 stamp_mutex--; 356 return; 357 } 358 359 if ((unsigned)col >= (unsigned)ri->ri_cols) { 360 stamp_mutex--; 361 return; 362 } 363 #endif 364 365 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 366 height = ri->ri_font->fontheight; 367 rs = ri->ri_stride; 368 369 /* Recompute stamp? */ 370 if (attr != stamp_attr) 371 rasops2_makestamp(ri, attr); 372 373 if (uc == ' ') { 374 int8_t c = stamp[0]; 375 while (height--) { 376 rp[0] = rp[1] = rp[2] = c; 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) & 0xf]; 386 rp[1] = stamp[fr[0] & 0xf]; 387 rp[2] = stamp[(fr[1] >> 4) & 0xf]; 388 fr += fs; 389 rp += rs; 390 } 391 } 392 393 /* Do underline */ 394 if ((attr & 1) != 0) { 395 rp -= ri->ri_stride << 1; 396 rp[0] = rp[1] = rp[2] = stamp[15]; 397 } 398 399 stamp_mutex--; 400 } 401 402 /* 403 * Put a single character. This is for 16-pixel wide fonts. 404 */ 405 static void 406 rasops2_putchar16(cookie, row, col, uc, attr) 407 void *cookie; 408 int row, col; 409 u_int uc; 410 long attr; 411 { 412 struct rasops_info *ri; 413 int height, fs, rs; 414 u_char *fr, *rp; 415 416 /* Can't risk remaking the stamp if it's already in use */ 417 if (stamp_mutex++) { 418 stamp_mutex--; 419 rasops2_putchar(cookie, row, col, uc, attr); 420 return; 421 } 422 423 ri = (struct rasops_info *)cookie; 424 425 #ifdef RASOPS_CLIPPING 426 /* Catches 'row < 0' case too */ 427 if ((unsigned)row >= (unsigned)ri->ri_rows) { 428 stamp_mutex--; 429 return; 430 } 431 432 if ((unsigned)col >= (unsigned)ri->ri_cols) { 433 stamp_mutex--; 434 return; 435 } 436 #endif 437 438 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 439 height = ri->ri_font->fontheight; 440 rs = ri->ri_stride; 441 442 /* Recompute stamp? */ 443 if (attr != stamp_attr) 444 rasops2_makestamp(ri, attr); 445 446 if (uc == ' ') { 447 int8_t c = stamp[0]; 448 while (height--) { 449 *(int32_t *)rp = c; 450 rp += rs; 451 } 452 } else { 453 uc -= ri->ri_font->firstchar; 454 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 455 fs = ri->ri_font->stride; 456 457 while (height--) { 458 rp[0] = stamp[(fr[0] >> 4) & 0xf]; 459 rp[1] = stamp[fr[0] & 0xf]; 460 rp[2] = stamp[(fr[1] >> 4) & 0xf]; 461 rp[3] = stamp[fr[1] & 0xf]; 462 fr += fs; 463 rp += rs; 464 } 465 } 466 467 /* Do underline */ 468 if ((attr & 1) != 0) 469 *(int32_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 470 471 stamp_mutex--; 472 } 473 #endif /* !RASOPS_SMALL */ 474 475 /* 476 * Grab routines common to depths where (bpp < 8) 477 */ 478 #define NAME(ident) rasops2_##ident 479 #define PIXEL_SHIFT 1 480 481 #include <dev/rasops/rasops_bitops.h> 482
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