| 1 | /* $NetBSD: rasops2.c,v 1.18 2013/04/21 04:28:05 kiyohara 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 1.18 2013/04/21 04:28:05 kiyohara 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 = (struct rasops_info *)cookie; |
| 106 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 107 | int32_t *rp; |
| 108 | u_char *fr; |
| 109 | |
| 110 | #ifdef RASOPS_CLIPPING |
| 111 | /* Catches 'row < 0' case too */ |
| 112 | if ((unsigned)row >= (unsigned)ri->ri_rows) |
| 113 | return; |
| 114 | |
| 115 | if ((unsigned)col >= (unsigned)ri->ri_cols) |
| 116 | return; |
| 117 | #endif |
| 118 | |
| 119 | width = font->fontwidth << 1; |
| 120 | height = font->fontheight; |
| 121 | col *= width; |
| 122 | rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); |
| 123 | col = col & 31; |
| 124 | rs = ri->ri_stride; |
| 125 | |
| 126 | bg = ri->ri_devcmap[(attr >> 16) & 0xf]; |
| 127 | fg = ri->ri_devcmap[(attr >> 24) & 0xf]; |
| 128 | |
| 129 | /* If fg and bg match this becomes a space character */ |
| 130 | if (fg == bg || uc == ' ') { |
| 131 | uc = (u_int)-1; |
| 132 | fr = 0; /* shutup gcc */ |
| 133 | fs = 0; /* shutup gcc */ |
| 134 | } else { |
| 135 | uc -= font->firstchar; |
| 136 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
| 137 | fs = font->stride; |
| 138 | } |
| 139 | |
| 140 | /* Single word, one mask */ |
| 141 | if ((col + width) <= 32) { |
| 142 | rmask = rasops_pmask[col][width]; |
| 143 | lmask = ~rmask; |
| 144 | |
| 145 | if (uc == (u_int)-1) { |
| 146 | bg &= rmask; |
| 147 | |
| 148 | while (height--) { |
| 149 | *rp = (*rp & lmask) | bg; |
| 150 | DELTA(rp, rs, int32_t *); |
| 151 | } |
| 152 | } else { |
| 153 | while (height--) { |
| 154 | /* get bits, mask */ |
| 155 | /* compose sl */ |
| 156 | /* mask sl */ |
| 157 | /* put word */ |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | /* Do underline */ |
| 162 | if (attr & 1) { |
| 163 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
| 164 | *rp = (*rp & lmask) | (fg & rmask); |
| 165 | } |
| 166 | } else { |
| 167 | lmask = ~rasops_lmask[col]; |
| 168 | rmask = ~rasops_rmask[(col + width) & 31]; |
| 169 | |
| 170 | if (uc == (u_int)-1) { |
| 171 | bg = bg & ~lmask; |
| 172 | width = bg & ~rmask; |
| 173 | |
| 174 | while (height--) { |
| 175 | rp[0] = (rp[0] & lmask) | bg; |
| 176 | rp[1] = (rp[1] & rmask) | width; |
| 177 | DELTA(rp, rs, int32_t *); |
| 178 | } |
| 179 | } else { |
| 180 | width = 32 - col; |
| 181 | |
| 182 | /* NOT fontbits if bg is white */ |
| 183 | while (height--) { |
| 184 | fb = ~(fr[3] | (fr[2] << 8) | |
| 185 | (fr[1] << 16) | (fr[0] << 24)); |
| 186 | |
| 187 | rp[0] = (rp[0] & lmask) |
| 188 | | MBE((u_int)fb >> col); |
| 189 | |
| 190 | rp[1] = (rp[1] & rmask) |
| 191 | | (MBE((u_int)fb << width) & ~rmask); |
| 192 | |
| 193 | fr += fs; |
| 194 | DELTA(rp, rs, int32_t *); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | /* Do underline */ |
| 199 | if (attr & 1) { |
| 200 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
| 201 | rp[0] = (rp[0] & lmask) | (fg & ~lmask); |
| 202 | rp[1] = (rp[1] & rmask) | (fg & ~rmask); |
| 203 | } |
| 204 | } |
| 205 | } |
| 206 | #endif |
| 207 | |
| 208 | /* |
| 209 | * Put a single character. This is the generic version. |
| 210 | */ |
| 211 | static void |
| 212 | rasops2_putchar(void *cookie, int row, int col, u_int uc, long attr) |
| 213 | { |
| 214 | |
| 215 | /* XXX punt */ |
| 216 | } |
| 217 | |
| 218 | #ifndef RASOPS_SMALL |
| 219 | /* |
| 220 | * Recompute the blitting stamp. |
| 221 | */ |
| 222 | static void |
| 223 | rasops2_makestamp(struct rasops_info *ri, long attr) |
| 224 | { |
| 225 | int i, fg, bg; |
| 226 | |
| 227 | fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 3; |
| 228 | bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 3; |
| 229 | stamp_attr = attr; |
| 230 | |
| 231 | for (i = 0; i < 16; i++) { |
| 232 | #if BYTE_ORDER == BIG_ENDIAN |
| 233 | #define NEED_LITTLE_ENDIAN_STAMP RI_BSWAP |
| 234 | #else |
| 235 | #define NEED_LITTLE_ENDIAN_STAMP 0 |
| 236 | #endif |
| 237 | if ((ri->ri_flg & RI_BSWAP) == NEED_LITTLE_ENDIAN_STAMP) { |
| 238 | /* littel endian */ |
| 239 | stamp[i] = (i & 8 ? fg : bg); |
| 240 | stamp[i] |= (i & 4 ? fg : bg) << 2; |
| 241 | stamp[i] |= (i & 2 ? fg : bg) << 4; |
| 242 | stamp[i] |= (i & 1 ? fg : bg) << 6; |
| 243 | } else { |
| 244 | /* big endian */ |
| 245 | stamp[i] = (i & 1 ? fg : bg); |
| 246 | stamp[i] |= (i & 2 ? fg : bg) << 2; |
| 247 | stamp[i] |= (i & 4 ? fg : bg) << 4; |
| 248 | stamp[i] |= (i & 8 ? fg : bg) << 6; |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | /* |
| 254 | * Put a single character. This is for 8-pixel wide fonts. |
| 255 | */ |
| 256 | static void |
| 257 | rasops2_putchar8(void *cookie, int row, int col, u_int uc, long attr) |
| 258 | { |
| 259 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 260 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 261 | int height, fs, rs; |
| 262 | u_char *fr, *rp; |
| 263 | |
| 264 | /* Can't risk remaking the stamp if it's already in use */ |
| 265 | if (stamp_mutex++) { |
| 266 | stamp_mutex--; |
| 267 | rasops2_putchar(cookie, row, col, uc, attr); |
| 268 | return; |
| 269 | } |
| 270 | |
| 271 | #ifdef RASOPS_CLIPPING |
| 272 | /* Catches 'row < 0' case too */ |
| 273 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
| 274 | stamp_mutex--; |
| 275 | return; |
| 276 | } |
| 277 | |
| 278 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
| 279 | stamp_mutex--; |
| 280 | return; |
| 281 | } |
| 282 | #endif |
| 283 | |
| 284 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
| 285 | height = font->fontheight; |
| 286 | rs = ri->ri_stride; |
| 287 | |
| 288 | /* Recompute stamp? */ |
| 289 | if (attr != stamp_attr) |
| 290 | rasops2_makestamp(ri, attr); |
| 291 | |
| 292 | if (uc == ' ') { |
| 293 | int8_t c = stamp[0]; |
| 294 | while (height--) { |
| 295 | *(int16_t *)rp = c; |
| 296 | rp += rs; |
| 297 | } |
| 298 | } else { |
| 299 | uc -= font->firstchar; |
| 300 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
| 301 | fs = font->stride; |
| 302 | |
| 303 | while (height--) { |
| 304 | rp[0] = stamp[(*fr >> 4) & 0xf]; |
| 305 | rp[1] = stamp[*fr & 0xf]; |
| 306 | fr += fs; |
| 307 | rp += rs; |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | /* Do underline */ |
| 312 | if ((attr & 1) != 0) |
| 313 | *(int16_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; |
| 314 | |
| 315 | stamp_mutex--; |
| 316 | } |
| 317 | |
| 318 | /* |
| 319 | * Put a single character. This is for 12-pixel wide fonts. |
| 320 | */ |
| 321 | static void |
| 322 | rasops2_putchar12(void *cookie, int row, int col, u_int uc, long attr) |
| 323 | { |
| 324 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 325 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 326 | int height, fs, rs; |
| 327 | u_char *fr, *rp; |
| 328 | |
| 329 | /* Can't risk remaking the stamp if it's already in use */ |
| 330 | if (stamp_mutex++) { |
| 331 | stamp_mutex--; |
| 332 | rasops2_putchar(cookie, row, col, uc, attr); |
| 333 | return; |
| 334 | } |
| 335 | |
| 336 | #ifdef RASOPS_CLIPPING |
| 337 | /* Catches 'row < 0' case too */ |
| 338 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
| 339 | stamp_mutex--; |
| 340 | return; |
| 341 | } |
| 342 | |
| 343 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
| 344 | stamp_mutex--; |
| 345 | return; |
| 346 | } |
| 347 | #endif |
| 348 | |
| 349 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
| 350 | height = font->fontheight; |
| 351 | rs = ri->ri_stride; |
| 352 | |
| 353 | /* Recompute stamp? */ |
| 354 | if (attr != stamp_attr) |
| 355 | rasops2_makestamp(ri, attr); |
| 356 | |
| 357 | if (uc == ' ') { |
| 358 | int8_t c = stamp[0]; |
| 359 | while (height--) { |
| 360 | rp[0] = rp[1] = rp[2] = c; |
| 361 | rp += rs; |
| 362 | } |
| 363 | } else { |
| 364 | uc -= font->firstchar; |
| 365 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
| 366 | fs = font->stride; |
| 367 | |
| 368 | while (height--) { |
| 369 | rp[0] = stamp[(fr[0] >> 4) & 0xf]; |
| 370 | rp[1] = stamp[fr[0] & 0xf]; |
| 371 | rp[2] = stamp[(fr[1] >> 4) & 0xf]; |
| 372 | fr += fs; |
| 373 | rp += rs; |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | /* Do underline */ |
| 378 | if ((attr & 1) != 0) { |
| 379 | rp -= ri->ri_stride << 1; |
| 380 | rp[0] = rp[1] = rp[2] = stamp[15]; |
| 381 | } |
| 382 | |
| 383 | stamp_mutex--; |
| 384 | } |
| 385 | |
| 386 | /* |
| 387 | * Put a single character. This is for 16-pixel wide fonts. |
| 388 | */ |
| 389 | static void |
| 390 | rasops2_putchar16(void *cookie, int row, int col, u_int uc, long attr) |
| 391 | { |
| 392 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 393 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 394 | int height, fs, rs; |
| 395 | u_char *fr, *rp; |
| 396 | |
| 397 | /* Can't risk remaking the stamp if it's already in use */ |
| 398 | if (stamp_mutex++) { |
| 399 | stamp_mutex--; |
| 400 | rasops2_putchar(cookie, row, col, uc, attr); |
| 401 | return; |
| 402 | } |
| 403 | |
| 404 | #ifdef RASOPS_CLIPPING |
| 405 | /* Catches 'row < 0' case too */ |
| 406 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
| 407 | stamp_mutex--; |
| 408 | return; |
| 409 | } |
| 410 | |
| 411 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
| 412 | stamp_mutex--; |
| 413 | return; |
| 414 | } |
| 415 | #endif |
| 416 | |
| 417 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
| 418 | height = font->fontheight; |
| 419 | rs = ri->ri_stride; |
| 420 | |
| 421 | /* Recompute stamp? */ |
| 422 | if (attr != stamp_attr) |
| 423 | rasops2_makestamp(ri, attr); |
| 424 | |
| 425 | if (uc == ' ') { |
| 426 | int8_t c = stamp[0]; |
| 427 | while (height--) { |
| 428 | *(int32_t *)rp = c; |
| 429 | rp += rs; |
| 430 | } |
| 431 | } else { |
| 432 | uc -= font->firstchar; |
| 433 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
| 434 | fs = font->stride; |
| 435 | |
| 436 | while (height--) { |
| 437 | rp[0] = stamp[(fr[0] >> 4) & 0xf]; |
| 438 | rp[1] = stamp[fr[0] & 0xf]; |
| 439 | rp[2] = stamp[(fr[1] >> 4) & 0xf]; |
| 440 | rp[3] = stamp[fr[1] & 0xf]; |
| 441 | fr += fs; |
| 442 | rp += rs; |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | /* Do underline */ |
| 447 | if ((attr & 1) != 0) |
| 448 | *(int32_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; |
| 449 | |
| 450 | stamp_mutex--; |
| 451 | } |
| 452 | #endif /* !RASOPS_SMALL */ |
| 453 | |
| 454 | /* |
| 455 | * Grab routines common to depths where (bpp < 8) |
| 456 | */ |
| 457 | #define NAME(ident) rasops2_##ident |
| 458 | #define PIXEL_SHIFT 1 |
| 459 | |
| 460 | #include <dev/rasops/rasops_bitops.h> |
| 461 | |