| 1 | /* $NetBSD: rasops24.c,v 1.29 2011/07/25 18:02:47 njoly 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: rasops24.c,v 1.29 2011/07/25 18:02:47 njoly Exp $" ); |
| 34 | |
| 35 | #include "opt_rasops.h" |
| 36 | |
| 37 | #include <sys/param.h> |
| 38 | #include <sys/systm.h> |
| 39 | #include <sys/time.h> |
| 40 | |
| 41 | #include <machine/endian.h> |
| 42 | #include <sys/bswap.h> |
| 43 | |
| 44 | #include <dev/wscons/wsdisplayvar.h> |
| 45 | #include <dev/wscons/wsconsio.h> |
| 46 | #include <dev/rasops/rasops.h> |
| 47 | |
| 48 | static void rasops24_erasecols(void *, int, int, int, long); |
| 49 | static void rasops24_eraserows(void *, int, int, long); |
| 50 | static void rasops24_putchar(void *, int, int, u_int, long attr); |
| 51 | #ifndef RASOPS_SMALL |
| 52 | static void rasops24_putchar8(void *, int, int, u_int, long attr); |
| 53 | static void rasops24_putchar12(void *, int, int, u_int, long attr); |
| 54 | static void rasops24_putchar16(void *, int, int, u_int, long attr); |
| 55 | static void rasops24_makestamp(struct rasops_info *, long); |
| 56 | |
| 57 | /* |
| 58 | * 4x1 stamp for optimized character blitting |
| 59 | */ |
| 60 | static int32_t stamp[64]; |
| 61 | static long stamp_attr; |
| 62 | static int stamp_mutex; /* XXX see note in readme */ |
| 63 | #endif |
| 64 | |
| 65 | /* |
| 66 | * XXX this confuses the hell out of gcc2 (not egcs) which always insists |
| 67 | * that the shift count is negative. |
| 68 | * |
| 69 | * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK |
| 70 | * destination int32_t[0] = STAMP_READ(offset) |
| 71 | * destination int32_t[1] = STAMP_READ(offset + 4) |
| 72 | * destination int32_t[2] = STAMP_READ(offset + 8) |
| 73 | */ |
| 74 | #define STAMP_SHIFT(fb,n) ((n*4-4) >= 0 ? (fb)>>(n*4-4):(fb)<<-(n*4-4)) |
| 75 | #define STAMP_MASK (0xf << 4) |
| 76 | #define STAMP_READ(o) (*(int32_t *)((char *)stamp + (o))) |
| 77 | |
| 78 | /* |
| 79 | * Initialize rasops_info struct for this colordepth. |
| 80 | */ |
| 81 | void |
| 82 | rasops24_init(struct rasops_info *ri) |
| 83 | { |
| 84 | |
| 85 | switch (ri->ri_font->fontwidth) { |
| 86 | #ifndef RASOPS_SMALL |
| 87 | case 8: |
| 88 | ri->ri_ops.putchar = rasops24_putchar8; |
| 89 | break; |
| 90 | case 12: |
| 91 | ri->ri_ops.putchar = rasops24_putchar12; |
| 92 | break; |
| 93 | case 16: |
| 94 | ri->ri_ops.putchar = rasops24_putchar16; |
| 95 | break; |
| 96 | #endif |
| 97 | default: |
| 98 | ri->ri_ops.putchar = rasops24_putchar; |
| 99 | break; |
| 100 | } |
| 101 | |
| 102 | if (ri->ri_rnum == 0) { |
| 103 | ri->ri_rnum = 8; |
| 104 | ri->ri_rpos = 0; |
| 105 | ri->ri_gnum = 8; |
| 106 | ri->ri_gpos = 8; |
| 107 | ri->ri_bnum = 8; |
| 108 | ri->ri_bpos = 16; |
| 109 | } |
| 110 | |
| 111 | ri->ri_ops.erasecols = rasops24_erasecols; |
| 112 | ri->ri_ops.eraserows = rasops24_eraserows; |
| 113 | } |
| 114 | |
| 115 | /* |
| 116 | * Put a single character. This is the generic version. |
| 117 | * XXX this bites - we should use masks. |
| 118 | */ |
| 119 | static void |
| 120 | rasops24_putchar(void *cookie, int row, int col, u_int uc, long attr) |
| 121 | { |
| 122 | int fb, width, height, cnt, clr[2]; |
| 123 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 124 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 125 | u_char *dp, *rp, *fr; |
| 126 | |
| 127 | #ifdef RASOPS_CLIPPING |
| 128 | /* Catches 'row < 0' case too */ |
| 129 | if ((unsigned)row >= (unsigned)ri->ri_rows) |
| 130 | return; |
| 131 | |
| 132 | if ((unsigned)col >= (unsigned)ri->ri_cols) |
| 133 | return; |
| 134 | #endif |
| 135 | |
| 136 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
| 137 | height = font->fontheight; |
| 138 | width = font->fontwidth; |
| 139 | |
| 140 | clr[1] = ri->ri_devcmap[((u_int)attr >> 24) & 0xf]; |
| 141 | clr[0] = ri->ri_devcmap[((u_int)attr >> 16) & 0xf]; |
| 142 | |
| 143 | if (uc == ' ') { |
| 144 | u_char c = clr[0]; |
| 145 | while (height--) { |
| 146 | dp = rp; |
| 147 | rp += ri->ri_stride; |
| 148 | |
| 149 | for (cnt = width; cnt; cnt--) { |
| 150 | *dp++ = c >> 16; |
| 151 | *dp++ = c >> 8; |
| 152 | *dp++ = c; |
| 153 | } |
| 154 | } |
| 155 | } else { |
| 156 | uc -= font->firstchar; |
| 157 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
| 158 | |
| 159 | while (height--) { |
| 160 | dp = rp; |
| 161 | fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | |
| 162 | (fr[0] << 24); |
| 163 | fr += font->stride; |
| 164 | rp += ri->ri_stride; |
| 165 | |
| 166 | for (cnt = width; cnt; cnt--, fb <<= 1) { |
| 167 | if ((fb >> 31) & 1) { |
| 168 | *dp++ = clr[1] >> 16; |
| 169 | *dp++ = clr[1] >> 8; |
| 170 | *dp++ = clr[1]; |
| 171 | } else { |
| 172 | *dp++ = clr[0] >> 16; |
| 173 | *dp++ = clr[0] >> 8; |
| 174 | *dp++ = clr[0]; |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | /* Do underline */ |
| 181 | if ((attr & 1) != 0) { |
| 182 | u_char c = clr[1]; |
| 183 | |
| 184 | rp -= ri->ri_stride << 1; |
| 185 | |
| 186 | while (width--) { |
| 187 | *rp++ = c >> 16; |
| 188 | *rp++ = c >> 8; |
| 189 | *rp++ = c; |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | #ifndef RASOPS_SMALL |
| 195 | /* |
| 196 | * Recompute the blitting stamp. |
| 197 | */ |
| 198 | static void |
| 199 | rasops24_makestamp(struct rasops_info *ri, long attr) |
| 200 | { |
| 201 | u_int fg, bg, c1, c2, c3, c4; |
| 202 | int i; |
| 203 | |
| 204 | fg = ri->ri_devcmap[((u_int)attr >> 24) & 0xf] & 0xffffff; |
| 205 | bg = ri->ri_devcmap[((u_int)attr >> 16) & 0xf] & 0xffffff; |
| 206 | stamp_attr = attr; |
| 207 | |
| 208 | for (i = 0; i < 64; i += 4) { |
| 209 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 210 | c1 = (i & 32 ? fg : bg); |
| 211 | c2 = (i & 16 ? fg : bg); |
| 212 | c3 = (i & 8 ? fg : bg); |
| 213 | c4 = (i & 4 ? fg : bg); |
| 214 | #else |
| 215 | c1 = (i & 8 ? fg : bg); |
| 216 | c2 = (i & 4 ? fg : bg); |
| 217 | c3 = (i & 16 ? fg : bg); |
| 218 | c4 = (i & 32 ? fg : bg); |
| 219 | #endif |
| 220 | stamp[i+0] = (c1 << 8) | (c2 >> 16); |
| 221 | stamp[i+1] = (c2 << 16) | (c3 >> 8); |
| 222 | stamp[i+2] = (c3 << 24) | c4; |
| 223 | |
| 224 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 225 | if ((ri->ri_flg & RI_BSWAP) == 0) { |
| 226 | #else |
| 227 | if ((ri->ri_flg & RI_BSWAP) != 0) { |
| 228 | #endif |
| 229 | stamp[i+0] = bswap32(stamp[i+0]); |
| 230 | stamp[i+1] = bswap32(stamp[i+1]); |
| 231 | stamp[i+2] = bswap32(stamp[i+2]); |
| 232 | } |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | /* |
| 237 | * Put a single character. This is for 8-pixel wide fonts. |
| 238 | */ |
| 239 | static void |
| 240 | rasops24_putchar8(void *cookie, int row, int col, u_int uc, long attr) |
| 241 | { |
| 242 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 243 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 244 | int height, so, fs; |
| 245 | int32_t *rp; |
| 246 | u_char *fr; |
| 247 | |
| 248 | /* Can't risk remaking the stamp if it's already in use */ |
| 249 | if (stamp_mutex++) { |
| 250 | stamp_mutex--; |
| 251 | rasops24_putchar(cookie, row, col, uc, attr); |
| 252 | return; |
| 253 | } |
| 254 | |
| 255 | #ifdef RASOPS_CLIPPING |
| 256 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
| 257 | stamp_mutex--; |
| 258 | return; |
| 259 | } |
| 260 | |
| 261 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
| 262 | stamp_mutex--; |
| 263 | return; |
| 264 | } |
| 265 | #endif |
| 266 | |
| 267 | /* Recompute stamp? */ |
| 268 | if (attr != stamp_attr) |
| 269 | rasops24_makestamp(ri, attr); |
| 270 | |
| 271 | rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); |
| 272 | height = font->fontheight; |
| 273 | |
| 274 | if (uc == (u_int)-1) { |
| 275 | int32_t c = stamp[0]; |
| 276 | while (height--) { |
| 277 | rp[0] = rp[1] = rp[2] = rp[3] = rp[4] = rp[5] = c; |
| 278 | DELTA(rp, ri->ri_stride, int32_t *); |
| 279 | } |
| 280 | } else { |
| 281 | uc -= font->firstchar; |
| 282 | fr = (u_char *)font->data + uc*ri->ri_fontscale; |
| 283 | fs = font->stride; |
| 284 | |
| 285 | while (height--) { |
| 286 | so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK; |
| 287 | rp[0] = STAMP_READ(so); |
| 288 | rp[1] = STAMP_READ(so + 4); |
| 289 | rp[2] = STAMP_READ(so + 8); |
| 290 | |
| 291 | so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK; |
| 292 | rp[3] = STAMP_READ(so); |
| 293 | rp[4] = STAMP_READ(so + 4); |
| 294 | rp[5] = STAMP_READ(so + 8); |
| 295 | |
| 296 | fr += fs; |
| 297 | DELTA(rp, ri->ri_stride, int32_t *); |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | /* Do underline */ |
| 302 | if ((attr & 1) != 0) { |
| 303 | int32_t c = STAMP_READ(52); |
| 304 | |
| 305 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
| 306 | rp[0] = rp[1] = rp[2] = rp[3] = rp[4] = rp[5] = c; |
| 307 | } |
| 308 | |
| 309 | stamp_mutex--; |
| 310 | } |
| 311 | |
| 312 | /* |
| 313 | * Put a single character. This is for 12-pixel wide fonts. |
| 314 | */ |
| 315 | static void |
| 316 | rasops24_putchar12(void *cookie, int row, int col, u_int uc, long attr) |
| 317 | { |
| 318 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 319 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 320 | int height, so, fs; |
| 321 | int32_t *rp; |
| 322 | u_char *fr; |
| 323 | |
| 324 | /* Can't risk remaking the stamp if it's already in use */ |
| 325 | if (stamp_mutex++) { |
| 326 | stamp_mutex--; |
| 327 | rasops24_putchar(cookie, row, col, uc, attr); |
| 328 | return; |
| 329 | } |
| 330 | |
| 331 | #ifdef RASOPS_CLIPPING |
| 332 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
| 333 | stamp_mutex--; |
| 334 | return; |
| 335 | } |
| 336 | |
| 337 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
| 338 | stamp_mutex--; |
| 339 | return; |
| 340 | } |
| 341 | #endif |
| 342 | |
| 343 | /* Recompute stamp? */ |
| 344 | if (attr != stamp_attr) |
| 345 | rasops24_makestamp(ri, attr); |
| 346 | |
| 347 | rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); |
| 348 | height = font->fontheight; |
| 349 | |
| 350 | if (uc == (u_int)-1) { |
| 351 | int32_t c = stamp[0]; |
| 352 | while (height--) { |
| 353 | rp[0] = rp[1] = rp[2] = rp[3] = |
| 354 | rp[4] = rp[5] = rp[6] = rp[7] = rp[8] = c; |
| 355 | DELTA(rp, ri->ri_stride, int32_t *); |
| 356 | } |
| 357 | } else { |
| 358 | uc -= font->firstchar; |
| 359 | fr = (u_char *)font->data + uc*ri->ri_fontscale; |
| 360 | fs = font->stride; |
| 361 | |
| 362 | while (height--) { |
| 363 | so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK; |
| 364 | rp[0] = STAMP_READ(so); |
| 365 | rp[1] = STAMP_READ(so + 4); |
| 366 | rp[2] = STAMP_READ(so + 8); |
| 367 | |
| 368 | so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK; |
| 369 | rp[3] = STAMP_READ(so); |
| 370 | rp[4] = STAMP_READ(so + 4); |
| 371 | rp[5] = STAMP_READ(so + 8); |
| 372 | |
| 373 | so = STAMP_SHIFT(fr[1], 1) & STAMP_MASK; |
| 374 | rp[6] = STAMP_READ(so); |
| 375 | rp[7] = STAMP_READ(so + 4); |
| 376 | rp[8] = STAMP_READ(so + 8); |
| 377 | |
| 378 | fr += fs; |
| 379 | DELTA(rp, ri->ri_stride, int32_t *); |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /* Do underline */ |
| 384 | if ((attr & 1) != 0) { |
| 385 | int32_t c = STAMP_READ(52); |
| 386 | |
| 387 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
| 388 | rp[0] = rp[1] = rp[2] = rp[3] = |
| 389 | rp[4] = rp[5] = rp[6] = rp[7] = rp[8] = c; |
| 390 | } |
| 391 | |
| 392 | stamp_mutex--; |
| 393 | } |
| 394 | |
| 395 | /* |
| 396 | * Put a single character. This is for 16-pixel wide fonts. |
| 397 | */ |
| 398 | static void |
| 399 | rasops24_putchar16(void *cookie, int row, int col, u_int uc, long attr) |
| 400 | { |
| 401 | struct rasops_info *ri = (struct rasops_info *)cookie; |
| 402 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
| 403 | int height, so, fs; |
| 404 | int32_t *rp; |
| 405 | u_char *fr; |
| 406 | |
| 407 | /* Can't risk remaking the stamp if it's already in use */ |
| 408 | if (stamp_mutex++) { |
| 409 | stamp_mutex--; |
| 410 | rasops24_putchar(cookie, row, col, uc, attr); |
| 411 | return; |
| 412 | } |
| 413 | |
| 414 | #ifdef RASOPS_CLIPPING |
| 415 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
| 416 | stamp_mutex--; |
| 417 | return; |
| 418 | } |
| 419 | |
| 420 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
| 421 | stamp_mutex--; |
| 422 | return; |
| 423 | } |
| 424 | #endif |
| 425 | |
| 426 | /* Recompute stamp? */ |
| 427 | if (attr != stamp_attr) |
| 428 | rasops24_makestamp(ri, attr); |
| 429 | |
| 430 | rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); |
| 431 | height = font->fontheight; |
| 432 | |
| 433 | if (uc == (u_int)-1) { |
| 434 | int32_t c = stamp[0]; |
| 435 | while (height--) { |
| 436 | rp[0] = rp[1] = rp[2] = rp[3] = |
| 437 | rp[4] = rp[5] = rp[6] = rp[7] = |
| 438 | rp[8] = rp[9] = rp[10] = rp[11] = c; |
| 439 | DELTA(rp, ri->ri_stride, int32_t *); |
| 440 | } |
| 441 | } else { |
| 442 | uc -= font->firstchar; |
| 443 | fr = (u_char *)font->data + uc*ri->ri_fontscale; |
| 444 | fs = font->stride; |
| 445 | |
| 446 | while (height--) { |
| 447 | so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK; |
| 448 | rp[0] = STAMP_READ(so); |
| 449 | rp[1] = STAMP_READ(so + 4); |
| 450 | rp[2] = STAMP_READ(so + 8); |
| 451 | |
| 452 | so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK; |
| 453 | rp[3] = STAMP_READ(so); |
| 454 | rp[4] = STAMP_READ(so + 4); |
| 455 | rp[5] = STAMP_READ(so + 8); |
| 456 | |
| 457 | so = STAMP_SHIFT(fr[1], 1) & STAMP_MASK; |
| 458 | rp[6] = STAMP_READ(so); |
| 459 | rp[7] = STAMP_READ(so + 4); |
| 460 | rp[8] = STAMP_READ(so + 8); |
| 461 | |
| 462 | so = STAMP_SHIFT(fr[1], 0) & STAMP_MASK; |
| 463 | rp[9] = STAMP_READ(so); |
| 464 | rp[10] = STAMP_READ(so + 4); |
| 465 | rp[11] = STAMP_READ(so + 8); |
| 466 | |
| 467 | DELTA(rp, ri->ri_stride, int32_t *); |
| 468 | fr += fs; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | /* Do underline */ |
| 473 | if ((attr & 1) != 0) { |
| 474 | int32_t c = STAMP_READ(52); |
| 475 | |
| 476 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
| 477 | rp[0] = rp[1] = rp[2] = rp[3] = |
| 478 | rp[4] = rp[5] = rp[6] = rp[7] = |
| 479 | rp[8] = rp[9] = rp[10] = rp[11] = c; |
| 480 | } |
| 481 | |
| 482 | stamp_mutex--; |
| 483 | } |
| 484 | #endif /* !RASOPS_SMALL */ |
| 485 | |
| 486 | /* |
| 487 | * Erase rows. This is nice and easy due to alignment. |
| 488 | */ |
| 489 | static void |
| 490 | rasops24_eraserows(void *cookie, int row, int num, long attr) |
| 491 | { |
| 492 | int n9, n3, n1, cnt, stride, delta; |
| 493 | u_int32_t *dp, clr, xstamp[3]; |
| 494 | struct rasops_info *ri; |
| 495 | |
| 496 | /* |
| 497 | * If the color is gray, we can cheat and use the generic routines |
| 498 | * (which are faster, hopefully) since the r,g,b values are the same. |
| 499 | */ |
| 500 | if ((attr & 4) != 0) { |
| 501 | rasops_eraserows(cookie, row, num, attr); |
| 502 | return; |
| 503 | } |
| 504 | |
| 505 | ri = (struct rasops_info *)cookie; |
| 506 | |
| 507 | #ifdef RASOPS_CLIPPING |
| 508 | if (row < 0) { |
| 509 | num += row; |
| 510 | row = 0; |
| 511 | } |
| 512 | |
| 513 | if ((row + num) > ri->ri_rows) |
| 514 | num = ri->ri_rows - row; |
| 515 | |
| 516 | if (num <= 0) |
| 517 | return; |
| 518 | #endif |
| 519 | |
| 520 | clr = ri->ri_devcmap[(attr >> 16) & 0xf] & 0xffffff; |
| 521 | xstamp[0] = (clr << 8) | (clr >> 16); |
| 522 | xstamp[1] = (clr << 16) | (clr >> 8); |
| 523 | xstamp[2] = (clr << 24) | clr; |
| 524 | |
| 525 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 526 | if ((ri->ri_flg & RI_BSWAP) == 0) { |
| 527 | #else |
| 528 | if ((ri->ri_flg & RI_BSWAP) != 0) { |
| 529 | #endif |
| 530 | xstamp[0] = bswap32(xstamp[0]); |
| 531 | xstamp[1] = bswap32(xstamp[1]); |
| 532 | xstamp[2] = bswap32(xstamp[2]); |
| 533 | } |
| 534 | |
| 535 | /* |
| 536 | * XXX the wsdisplay_emulops interface seems a little deficient in |
| 537 | * that there is no way to clear the *entire* screen. We provide a |
| 538 | * workaround here: if the entire console area is being cleared, and |
| 539 | * the RI_FULLCLEAR flag is set, clear the entire display. |
| 540 | */ |
| 541 | if (num == ri->ri_rows && (ri->ri_flg & RI_FULLCLEAR) != 0) { |
| 542 | stride = ri->ri_stride; |
| 543 | num = ri->ri_height; |
| 544 | dp = (int32_t *)ri->ri_origbits; |
| 545 | delta = 0; |
| 546 | } else { |
| 547 | stride = ri->ri_emustride; |
| 548 | num *= ri->ri_font->fontheight; |
| 549 | dp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale); |
| 550 | delta = ri->ri_delta; |
| 551 | } |
| 552 | |
| 553 | n9 = stride / 36; |
| 554 | cnt = (n9 << 5) + (n9 << 2); /* (32*n9) + (4*n9) */ |
| 555 | n3 = (stride - cnt) / 12; |
| 556 | cnt += (n3 << 3) + (n3 << 2); /* (8*n3) + (4*n3) */ |
| 557 | n1 = (stride - cnt) >> 2; |
| 558 | |
| 559 | while (num--) { |
| 560 | for (cnt = n9; cnt; cnt--) { |
| 561 | dp[0] = xstamp[0]; |
| 562 | dp[1] = xstamp[1]; |
| 563 | dp[2] = xstamp[2]; |
| 564 | dp[3] = xstamp[0]; |
| 565 | dp[4] = xstamp[1]; |
| 566 | dp[5] = xstamp[2]; |
| 567 | dp[6] = xstamp[0]; |
| 568 | dp[7] = xstamp[1]; |
| 569 | dp[8] = xstamp[2]; |
| 570 | dp += 9; |
| 571 | } |
| 572 | |
| 573 | for (cnt = n3; cnt; cnt--) { |
| 574 | dp[0] = xstamp[0]; |
| 575 | dp[1] = xstamp[1]; |
| 576 | dp[2] = xstamp[2]; |
| 577 | dp += 3; |
| 578 | } |
| 579 | |
| 580 | for (cnt = 0; cnt < n1; cnt++) |
| 581 | *dp++ = xstamp[cnt]; |
| 582 | |
| 583 | DELTA(dp, delta, int32_t *); |
| 584 | } |
| 585 | } |
| 586 | |
| 587 | /* |
| 588 | * Erase columns. |
| 589 | */ |
| 590 | static void |
| 591 | rasops24_erasecols(void *cookie, int row, int col, int num, long attr) |
| 592 | { |
| 593 | int n12, n4, height, cnt, slop, clr, xstamp[3]; |
| 594 | struct rasops_info *ri; |
| 595 | int32_t *dp, *rp; |
| 596 | u_char *dbp; |
| 597 | |
| 598 | /* |
| 599 | * If the color is gray, we can cheat and use the generic routines |
| 600 | * (which are faster, hopefully) since the r,g,b values are the same. |
| 601 | */ |
| 602 | if ((attr & 4) != 0) { |
| 603 | rasops_erasecols(cookie, row, col, num, attr); |
| 604 | return; |
| 605 | } |
| 606 | |
| 607 | ri = (struct rasops_info *)cookie; |
| 608 | |
| 609 | #ifdef RASOPS_CLIPPING |
| 610 | /* Catches 'row < 0' case too */ |
| 611 | if ((unsigned)row >= (unsigned)ri->ri_rows) |
| 612 | return; |
| 613 | |
| 614 | if (col < 0) { |
| 615 | num += col; |
| 616 | col = 0; |
| 617 | } |
| 618 | |
| 619 | if ((col + num) > ri->ri_cols) |
| 620 | num = ri->ri_cols - col; |
| 621 | |
| 622 | if (num <= 0) |
| 623 | return; |
| 624 | #endif |
| 625 | |
| 626 | rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); |
| 627 | num *= ri->ri_font->fontwidth; |
| 628 | height = ri->ri_font->fontheight; |
| 629 | |
| 630 | clr = ri->ri_devcmap[(attr >> 16) & 0xf] & 0xffffff; |
| 631 | xstamp[0] = (clr << 8) | (clr >> 16); |
| 632 | xstamp[1] = (clr << 16) | (clr >> 8); |
| 633 | xstamp[2] = (clr << 24) | clr; |
| 634 | |
| 635 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 636 | if ((ri->ri_flg & RI_BSWAP) == 0) { |
| 637 | #else |
| 638 | if ((ri->ri_flg & RI_BSWAP) != 0) { |
| 639 | #endif |
| 640 | xstamp[0] = bswap32(xstamp[0]); |
| 641 | xstamp[1] = bswap32(xstamp[1]); |
| 642 | xstamp[2] = bswap32(xstamp[2]); |
| 643 | } |
| 644 | |
| 645 | /* |
| 646 | * The current byte offset mod 4 tells us the number of 24-bit pels |
| 647 | * we need to write for alignment to 32-bits. Once we're aligned on |
| 648 | * a 32-bit boundary, we're also aligned on a 4 pixel boundary, so |
| 649 | * the stamp does not need to be rotated. The following shows the |
| 650 | * layout of 4 pels in a 3 word region and illustrates this: |
| 651 | * |
| 652 | * aaab bbcc cddd |
| 653 | */ |
| 654 | slop = (int)(long)rp & 3; num -= slop; |
| 655 | n12 = num / 12; num -= (n12 << 3) + (n12 << 2); |
| 656 | n4 = num >> 2; num &= 3; |
| 657 | |
| 658 | while (height--) { |
| 659 | dbp = (u_char *)rp; |
| 660 | DELTA(rp, ri->ri_stride, int32_t *); |
| 661 | |
| 662 | /* Align to 4 bytes */ |
| 663 | /* XXX handle with masks, bring under control of RI_BSWAP */ |
| 664 | for (cnt = slop; cnt; cnt--) { |
| 665 | *dbp++ = (clr >> 16); |
| 666 | *dbp++ = (clr >> 8); |
| 667 | *dbp++ = clr; |
| 668 | } |
| 669 | |
| 670 | dp = (int32_t *)dbp; |
| 671 | |
| 672 | /* 12 pels per loop */ |
| 673 | for (cnt = n12; cnt; cnt--) { |
| 674 | dp[0] = xstamp[0]; |
| 675 | dp[1] = xstamp[1]; |
| 676 | dp[2] = xstamp[2]; |
| 677 | dp[3] = xstamp[0]; |
| 678 | dp[4] = xstamp[1]; |
| 679 | dp[5] = xstamp[2]; |
| 680 | dp[6] = xstamp[0]; |
| 681 | dp[7] = xstamp[1]; |
| 682 | dp[8] = xstamp[2]; |
| 683 | dp += 9; |
| 684 | } |
| 685 | |
| 686 | /* 4 pels per loop */ |
| 687 | for (cnt = n4; cnt; cnt--) { |
| 688 | dp[0] = xstamp[0]; |
| 689 | dp[1] = xstamp[1]; |
| 690 | dp[2] = xstamp[2]; |
| 691 | dp += 3; |
| 692 | } |
| 693 | |
| 694 | /* Trailing slop */ |
| 695 | /* XXX handle with masks, bring under control of RI_BSWAP */ |
| 696 | dbp = (u_char *)dp; |
| 697 | for (cnt = num; cnt; cnt--) { |
| 698 | *dbp++ = (clr >> 16); |
| 699 | *dbp++ = (clr >> 8); |
| 700 | *dbp++ = clr; |
| 701 | } |
| 702 | } |
| 703 | } |
| 704 | |