rasops2.c revision 1.5
1 /* $NetBSD: rasops2.c,v 1.5 2000/04/12 14:22:29 pk 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 1.5 2000/04/12 14:22:29 pk 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_copycols __P((void *, int, int, int, int)); 55 static void rasops2_erasecols __P((void *, int, int, int, long)); 56 static void rasops2_do_cursor __P((struct rasops_info *)); 57 static void rasops2_putchar __P((void *, int, int col, u_int, long)); 58 #ifndef RASOPS_SMALL 59 static void rasops2_putchar8 __P((void *, int, int col, u_int, long)); 60 static void rasops2_putchar12 __P((void *, int, int col, u_int, long)); 61 static void rasops2_putchar16 __P((void *, int, int col, u_int, long)); 62 static void rasops2_makestamp __P((struct rasops_info *, long)); 63 #endif 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 #ifndef RASOPS_SMALL 82 case 8: 83 ri->ri_ops.putchar = rasops2_putchar8; 84 break; 85 case 12: 86 ri->ri_ops.putchar = rasops2_putchar12; 87 break; 88 case 16: 89 ri->ri_ops.putchar = rasops2_putchar16; 90 break; 91 #endif /* !RASOPS_SMALL */ 92 default: 93 panic("fontwidth not 8/12/16 or RASOPS_SMALL - fixme!"); 94 ri->ri_ops.putchar = rasops2_putchar; 95 break; 96 } 97 98 if ((ri->ri_font->fontwidth & 3) != 0) { 99 ri->ri_ops.erasecols = rasops2_erasecols; 100 ri->ri_ops.copycols = rasops2_copycols; 101 ri->ri_do_cursor = rasops2_do_cursor; 102 } 103 } 104 105 #ifdef notyet 106 /* 107 * Paint a single character. This is the generic version, this is ugly. 108 */ 109 static void 110 rasops2_putchar(cookie, row, col, uc, attr) 111 void *cookie; 112 int row, col; 113 u_int uc; 114 long attr; 115 { 116 int height, width, fs, rs, fb, bg, fg, lmask, rmask; 117 struct rasops_info *ri; 118 int32_t *rp; 119 u_char *fr; 120 121 ri = (struct rasops_info *)cookie; 122 123 #ifdef RASOPS_CLIPPING 124 /* Catches 'row < 0' case too */ 125 if ((unsigned)row >= (unsigned)ri->ri_rows) 126 return; 127 128 if ((unsigned)col >= (unsigned)ri->ri_cols) 129 return; 130 #endif 131 132 width = ri->ri_font->fontwidth << 1; 133 height = ri->ri_font->fontheight; 134 col *= width; 135 rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); 136 col = col & 31; 137 rs = ri->ri_stride; 138 139 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 140 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 141 142 /* If fg and bg match this becomes a space character */ 143 if (fg == bg || uc == ' ') { 144 uc = (u_int)-1; 145 fr = 0; /* shutup gcc */ 146 fs = 0; /* shutup gcc */ 147 } else { 148 uc -= ri->ri_font->firstchar; 149 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 150 fs = ri->ri_font->stride; 151 } 152 153 /* Single word, one mask */ 154 if ((col + width) <= 32) { 155 rmask = rasops_pmask[col][width]; 156 lmask = ~rmask; 157 158 if (uc == (u_int)-1) { 159 bg &= rmask; 160 161 while (height--) { 162 *rp = (*rp & lmask) | bg; 163 DELTA(rp, rs, int32_t *); 164 } 165 } else { 166 while (height--) { 167 /* get bits, mask */ 168 /* compose sl */ 169 /* mask sl */ 170 /* put word */ 171 } 172 } 173 174 /* Do underline */ 175 if (attr & 1) { 176 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 177 *rp = (*rp & lmask) | (fg & rmask); 178 } 179 } else { 180 lmask = ~rasops_lmask[col]; 181 rmask = ~rasops_rmask[(col + width) & 31]; 182 183 if (uc == (u_int)-1) { 184 bg = bg & ~lmask; 185 width = bg & ~rmask; 186 187 while (height--) { 188 rp[0] = (rp[0] & lmask) | bg; 189 rp[1] = (rp[1] & rmask) | width; 190 DELTA(rp, rs, int32_t *); 191 } 192 } else { 193 width = 32 - col; 194 195 /* NOT fontbits if bg is white */ 196 while (height--) { 197 fb = ~(fr[3] | (fr[2] << 8) | 198 (fr[1] << 16) | (fr[0] << 24)); 199 200 rp[0] = (rp[0] & lmask) 201 | MBE((u_int)fb >> col); 202 203 rp[1] = (rp[1] & rmask) 204 | (MBE((u_int)fb << width) & ~rmask); 205 206 fr += fs; 207 DELTA(rp, rs, int32_t *); 208 } 209 } 210 211 /* Do underline */ 212 if (attr & 1) { 213 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 214 rp[0] = (rp[0] & lmask) | (fg & ~lmask); 215 rp[1] = (rp[1] & rmask) | (fg & ~rmask); 216 } 217 } 218 } 219 #endif 220 221 /* 222 * Put a single character. This is the generic version. 223 */ 224 static void 225 rasops2_putchar(cookie, row, col, uc, attr) 226 void *cookie; 227 int row, col; 228 u_int uc; 229 long attr; 230 { 231 232 /* XXX punt */ 233 } 234 235 #ifndef RASOPS_SMALL 236 /* 237 * Recompute the blitting stamp. 238 */ 239 static void 240 rasops2_makestamp(ri, attr) 241 struct rasops_info *ri; 242 long attr; 243 { 244 int i, fg, bg; 245 246 fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 3; 247 bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 3; 248 stamp_attr = attr; 249 250 for (i = 0; i < 16; i++) { 251 stamp[i] = (i & 1 ? fg : bg); 252 stamp[i] |= (i & 2 ? fg : bg) << 2; 253 stamp[i] |= (i & 4 ? fg : bg) << 4; 254 stamp[i] |= (i & 8 ? fg : bg) << 6; 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 int8_t c = stamp[0]; 304 while (height--) { 305 *(int16_t *)rp = c; 306 rp += rs; 307 } 308 } else { 309 uc -= ri->ri_font->firstchar; 310 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 311 fs = ri->ri_font->stride; 312 313 while (height--) { 314 rp[0] = stamp[(*fr >> 4) & 0xf]; 315 rp[1] = stamp[*fr & 0xf]; 316 fr += fs; 317 rp += rs; 318 } 319 } 320 321 /* Do underline */ 322 if ((attr & 1) != 0) 323 *(int16_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 324 325 stamp_mutex--; 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 int8_t c = stamp[0]; 374 while (height--) { 375 rp[0] = rp[1] = rp[2] = c; 376 rp += rs; 377 } 378 } else { 379 uc -= ri->ri_font->firstchar; 380 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 381 fs = ri->ri_font->stride; 382 383 while (height--) { 384 rp[0] = stamp[(fr[0] >> 4) & 0xf]; 385 rp[1] = stamp[fr[0] & 0xf]; 386 rp[2] = stamp[(fr[1] >> 4) & 0xf]; 387 fr += fs; 388 rp += rs; 389 } 390 } 391 392 /* Do underline */ 393 if ((attr & 1) != 0) { 394 rp -= ri->ri_stride << 1; 395 rp[0] = rp[1] = rp[2] = stamp[15]; 396 } 397 398 stamp_mutex--; 399 } 400 401 /* 402 * Put a single character. This is for 16-pixel wide fonts. 403 */ 404 static void 405 rasops2_putchar16(cookie, row, col, uc, attr) 406 void *cookie; 407 int row, col; 408 u_int uc; 409 long attr; 410 { 411 struct rasops_info *ri; 412 int height, fs, rs; 413 u_char *fr, *rp; 414 415 /* Can't risk remaking the stamp if it's already in use */ 416 if (stamp_mutex++) { 417 stamp_mutex--; 418 rasops2_putchar(cookie, row, col, uc, attr); 419 return; 420 } 421 422 ri = (struct rasops_info *)cookie; 423 424 #ifdef RASOPS_CLIPPING 425 /* Catches 'row < 0' case too */ 426 if ((unsigned)row >= (unsigned)ri->ri_rows) { 427 stamp_mutex--; 428 return; 429 } 430 431 if ((unsigned)col >= (unsigned)ri->ri_cols) { 432 stamp_mutex--; 433 return; 434 } 435 #endif 436 437 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 438 height = ri->ri_font->fontheight; 439 rs = ri->ri_stride; 440 441 /* Recompute stamp? */ 442 if (attr != stamp_attr) 443 rasops2_makestamp(ri, attr); 444 445 if (uc == ' ') { 446 int8_t c = stamp[0]; 447 while (height--) { 448 *(int32_t *)rp = c; 449 rp += rs; 450 } 451 } else { 452 uc -= ri->ri_font->firstchar; 453 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 454 fs = ri->ri_font->stride; 455 456 while (height--) { 457 rp[0] = stamp[(fr[0] >> 4) & 0xf]; 458 rp[1] = stamp[fr[0] & 0xf]; 459 rp[2] = stamp[(fr[1] >> 4) & 0xf]; 460 rp[3] = stamp[fr[1] & 0xf]; 461 fr += fs; 462 rp += rs; 463 } 464 } 465 466 /* Do underline */ 467 if ((attr & 1) != 0) 468 *(int32_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 469 470 stamp_mutex--; 471 } 472 #endif /* !RASOPS_SMALL */ 473 474 /* 475 * Grab routines common to depths where (bpp < 8) 476 */ 477 #define NAME(ident) rasops2_##ident 478 #define PIXEL_SHIFT 1 479 480 #include <dev/rasops/rasops_bitops.h> 481
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