1 /* $NetBSD: rasops2.c,v 1.14 2009/03/14 21:04:22 dsl 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: rasops2.c,v 1.14 2009/03/14 21:04:22 dsl 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 rasops2_copycols(void *, int, int, int, int); 48 static void rasops2_erasecols(void *, int, int, int, long); 49 static void rasops2_do_cursor(struct rasops_info *); 50 static void rasops2_putchar(void *, int, int col, u_int, long); 51 #ifndef RASOPS_SMALL 52 static void rasops2_putchar8(void *, int, int col, u_int, long); 53 static void rasops2_putchar12(void *, int, int col, u_int, long); 54 static void rasops2_putchar16(void *, int, int col, u_int, long); 55 static void rasops2_makestamp(struct rasops_info *, long); 56 57 /* 58 * 4x1 stamp for optimized character blitting 59 */ 60 static int8_t stamp[16]; 61 static long stamp_attr; 62 static int stamp_mutex; /* XXX see note in README */ 63 #endif 64 65 /* 66 * Initialize rasops_info struct for this colordepth. 67 */ 68 void 69 rasops2_init(struct rasops_info *ri) 70 { 71 72 switch (ri->ri_font->fontwidth) { 73 #ifndef RASOPS_SMALL 74 case 8: 75 ri->ri_ops.putchar = rasops2_putchar8; 76 break; 77 case 12: 78 ri->ri_ops.putchar = rasops2_putchar12; 79 break; 80 case 16: 81 ri->ri_ops.putchar = rasops2_putchar16; 82 break; 83 #endif /* !RASOPS_SMALL */ 84 default: 85 panic("fontwidth not 8/12/16 or RASOPS_SMALL - fixme!"); 86 ri->ri_ops.putchar = rasops2_putchar; 87 break; 88 } 89 90 if ((ri->ri_font->fontwidth & 3) != 0) { 91 ri->ri_ops.erasecols = rasops2_erasecols; 92 ri->ri_ops.copycols = rasops2_copycols; 93 ri->ri_do_cursor = rasops2_do_cursor; 94 } 95 } 96 97 #ifdef notyet 98 /* 99 * Paint a single character. This is the generic version, this is ugly. 100 */ 101 static void 102 rasops2_putchar(void *cookie, int row, int col, u_int uc, long attr) 103 { 104 int height, width, fs, rs, fb, bg, fg, lmask, rmask; 105 struct rasops_info *ri; 106 int32_t *rp; 107 u_char *fr; 108 109 ri = (struct rasops_info *)cookie; 110 111 #ifdef RASOPS_CLIPPING 112 /* Catches 'row < 0' case too */ 113 if ((unsigned)row >= (unsigned)ri->ri_rows) 114 return; 115 116 if ((unsigned)col >= (unsigned)ri->ri_cols) 117 return; 118 #endif 119 120 width = ri->ri_font->fontwidth << 1; 121 height = ri->ri_font->fontheight; 122 col *= width; 123 rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); 124 col = col & 31; 125 rs = ri->ri_stride; 126 127 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 128 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 129 130 /* If fg and bg match this becomes a space character */ 131 if (fg == bg || uc == ' ') { 132 uc = (u_int)-1; 133 fr = 0; /* shutup gcc */ 134 fs = 0; /* shutup gcc */ 135 } else { 136 uc -= ri->ri_font->firstchar; 137 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 138 fs = ri->ri_font->stride; 139 } 140 141 /* Single word, one mask */ 142 if ((col + width) <= 32) { 143 rmask = rasops_pmask[col][width]; 144 lmask = ~rmask; 145 146 if (uc == (u_int)-1) { 147 bg &= rmask; 148 149 while (height--) { 150 *rp = (*rp & lmask) | bg; 151 DELTA(rp, rs, int32_t *); 152 } 153 } else { 154 while (height--) { 155 /* get bits, mask */ 156 /* compose sl */ 157 /* mask sl */ 158 /* put word */ 159 } 160 } 161 162 /* Do underline */ 163 if (attr & 1) { 164 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 165 *rp = (*rp & lmask) | (fg & rmask); 166 } 167 } else { 168 lmask = ~rasops_lmask[col]; 169 rmask = ~rasops_rmask[(col + width) & 31]; 170 171 if (uc == (u_int)-1) { 172 bg = bg & ~lmask; 173 width = bg & ~rmask; 174 175 while (height--) { 176 rp[0] = (rp[0] & lmask) | bg; 177 rp[1] = (rp[1] & rmask) | width; 178 DELTA(rp, rs, int32_t *); 179 } 180 } else { 181 width = 32 - col; 182 183 /* NOT fontbits if bg is white */ 184 while (height--) { 185 fb = ~(fr[3] | (fr[2] << 8) | 186 (fr[1] << 16) | (fr[0] << 24)); 187 188 rp[0] = (rp[0] & lmask) 189 | MBE((u_int)fb >> col); 190 191 rp[1] = (rp[1] & rmask) 192 | (MBE((u_int)fb << width) & ~rmask); 193 194 fr += fs; 195 DELTA(rp, rs, int32_t *); 196 } 197 } 198 199 /* Do underline */ 200 if (attr & 1) { 201 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 202 rp[0] = (rp[0] & lmask) | (fg & ~lmask); 203 rp[1] = (rp[1] & rmask) | (fg & ~rmask); 204 } 205 } 206 } 207 #endif 208 209 /* 210 * Put a single character. This is the generic version. 211 */ 212 static void 213 rasops2_putchar(void *cookie, int row, int col, u_int uc, long attr) 214 { 215 216 /* XXX punt */ 217 } 218 219 #ifndef RASOPS_SMALL 220 /* 221 * Recompute the blitting stamp. 222 */ 223 static void 224 rasops2_makestamp(struct rasops_info *ri, long attr) 225 { 226 int i, fg, bg; 227 228 fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 3; 229 bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 3; 230 stamp_attr = attr; 231 232 for (i = 0; i < 16; i++) { 233 stamp[i] = (i & 1 ? fg : bg); 234 stamp[i] |= (i & 2 ? fg : bg) << 2; 235 stamp[i] |= (i & 4 ? fg : bg) << 4; 236 stamp[i] |= (i & 8 ? fg : bg) << 6; 237 } 238 } 239 240 /* 241 * Put a single character. This is for 8-pixel wide fonts. 242 */ 243 static void 244 rasops2_putchar8(void *cookie, int row, int col, u_int uc, long attr) 245 { 246 struct rasops_info *ri; 247 int height, fs, rs; 248 u_char *fr, *rp; 249 250 /* Can't risk remaking the stamp if it's already in use */ 251 if (stamp_mutex++) { 252 stamp_mutex--; 253 rasops2_putchar(cookie, row, col, uc, attr); 254 return; 255 } 256 257 ri = (struct rasops_info *)cookie; 258 259 #ifdef RASOPS_CLIPPING 260 /* Catches 'row < 0' case too */ 261 if ((unsigned)row >= (unsigned)ri->ri_rows) { 262 stamp_mutex--; 263 return; 264 } 265 266 if ((unsigned)col >= (unsigned)ri->ri_cols) { 267 stamp_mutex--; 268 return; 269 } 270 #endif 271 272 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 273 height = ri->ri_font->fontheight; 274 rs = ri->ri_stride; 275 276 /* Recompute stamp? */ 277 if (attr != stamp_attr) 278 rasops2_makestamp(ri, attr); 279 280 if (uc == ' ') { 281 int8_t c = stamp[0]; 282 while (height--) { 283 *(int16_t *)rp = c; 284 rp += rs; 285 } 286 } else { 287 uc -= ri->ri_font->firstchar; 288 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 289 fs = ri->ri_font->stride; 290 291 while (height--) { 292 rp[0] = stamp[(*fr >> 4) & 0xf]; 293 rp[1] = stamp[*fr & 0xf]; 294 fr += fs; 295 rp += rs; 296 } 297 } 298 299 /* Do underline */ 300 if ((attr & 1) != 0) 301 *(int16_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 302 303 stamp_mutex--; 304 } 305 306 /* 307 * Put a single character. This is for 12-pixel wide fonts. 308 */ 309 static void 310 rasops2_putchar12(void *cookie, int row, int col, u_int uc, long attr) 311 { 312 struct rasops_info *ri; 313 int height, fs, rs; 314 u_char *fr, *rp; 315 316 /* Can't risk remaking the stamp if it's already in use */ 317 if (stamp_mutex++) { 318 stamp_mutex--; 319 rasops2_putchar(cookie, row, col, uc, attr); 320 return; 321 } 322 323 ri = (struct rasops_info *)cookie; 324 325 #ifdef RASOPS_CLIPPING 326 /* Catches 'row < 0' case too */ 327 if ((unsigned)row >= (unsigned)ri->ri_rows) { 328 stamp_mutex--; 329 return; 330 } 331 332 if ((unsigned)col >= (unsigned)ri->ri_cols) { 333 stamp_mutex--; 334 return; 335 } 336 #endif 337 338 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 339 height = ri->ri_font->fontheight; 340 rs = ri->ri_stride; 341 342 /* Recompute stamp? */ 343 if (attr != stamp_attr) 344 rasops2_makestamp(ri, attr); 345 346 if (uc == ' ') { 347 int8_t c = stamp[0]; 348 while (height--) { 349 rp[0] = rp[1] = rp[2] = c; 350 rp += rs; 351 } 352 } else { 353 uc -= ri->ri_font->firstchar; 354 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 355 fs = ri->ri_font->stride; 356 357 while (height--) { 358 rp[0] = stamp[(fr[0] >> 4) & 0xf]; 359 rp[1] = stamp[fr[0] & 0xf]; 360 rp[2] = stamp[(fr[1] >> 4) & 0xf]; 361 fr += fs; 362 rp += rs; 363 } 364 } 365 366 /* Do underline */ 367 if ((attr & 1) != 0) { 368 rp -= ri->ri_stride << 1; 369 rp[0] = rp[1] = rp[2] = stamp[15]; 370 } 371 372 stamp_mutex--; 373 } 374 375 /* 376 * Put a single character. This is for 16-pixel wide fonts. 377 */ 378 static void 379 rasops2_putchar16(void *cookie, int row, int col, u_int uc, long attr) 380 { 381 struct rasops_info *ri; 382 int height, fs, rs; 383 u_char *fr, *rp; 384 385 /* Can't risk remaking the stamp if it's already in use */ 386 if (stamp_mutex++) { 387 stamp_mutex--; 388 rasops2_putchar(cookie, row, col, uc, attr); 389 return; 390 } 391 392 ri = (struct rasops_info *)cookie; 393 394 #ifdef RASOPS_CLIPPING 395 /* Catches 'row < 0' case too */ 396 if ((unsigned)row >= (unsigned)ri->ri_rows) { 397 stamp_mutex--; 398 return; 399 } 400 401 if ((unsigned)col >= (unsigned)ri->ri_cols) { 402 stamp_mutex--; 403 return; 404 } 405 #endif 406 407 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 408 height = ri->ri_font->fontheight; 409 rs = ri->ri_stride; 410 411 /* Recompute stamp? */ 412 if (attr != stamp_attr) 413 rasops2_makestamp(ri, attr); 414 415 if (uc == ' ') { 416 int8_t c = stamp[0]; 417 while (height--) { 418 *(int32_t *)rp = c; 419 rp += rs; 420 } 421 } else { 422 uc -= ri->ri_font->firstchar; 423 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 424 fs = ri->ri_font->stride; 425 426 while (height--) { 427 rp[0] = stamp[(fr[0] >> 4) & 0xf]; 428 rp[1] = stamp[fr[0] & 0xf]; 429 rp[2] = stamp[(fr[1] >> 4) & 0xf]; 430 rp[3] = stamp[fr[1] & 0xf]; 431 fr += fs; 432 rp += rs; 433 } 434 } 435 436 /* Do underline */ 437 if ((attr & 1) != 0) 438 *(int32_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; 439 440 stamp_mutex--; 441 } 442 #endif /* !RASOPS_SMALL */ 443 444 /* 445 * Grab routines common to depths where (bpp < 8) 446 */ 447 #define NAME(ident) rasops2_##ident 448 #define PIXEL_SHIFT 1 449 450 #include <dev/rasops/rasops_bitops.h> 451