| 1 | /* |
| 2 | * Copyright © 1998 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of Keith Packard not be used in |
| 9 | * advertising or publicity pertaining to distribution of the software without |
| 10 | * specific, written prior permission. Keith Packard makes no |
| 11 | * representations about the suitability of this software for any purpose. It |
| 12 | * is provided "as is" without express or implied warranty. |
| 13 | * |
| 14 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 20 | * PERFORMANCE OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | /* |
| 24 | * This file defines functions for drawing some primitives using |
| 25 | * underlying datatypes instead of masks |
| 26 | */ |
| 27 | |
| 28 | #define isClipped(c,ul,lr) (((c) | ((c) - (ul)) | ((lr) - (c))) & 0x80008000) |
| 29 | |
| 30 | #ifdef HAVE_DIX_CONFIG_H |
| 31 | #include <dix-config.h> |
| 32 | #endif |
| 33 | |
| 34 | #ifdef BITSMUL |
| 35 | #define MUL BITSMUL |
| 36 | #else |
| 37 | #define MUL 1 |
| 38 | #endif |
| 39 | |
| 40 | #ifdef BITSSTORE |
| 41 | #define STORE(b,x) BITSSTORE(b,x) |
| 42 | #else |
| 43 | #define STORE(b,x) WRITE((b), (x)) |
| 44 | #endif |
| 45 | |
| 46 | #ifdef BITSRROP |
| 47 | #define RROP(b,a,x) BITSRROP(b,a,x) |
| 48 | #else |
| 49 | #define RROP(b,a,x) WRITE((b), FbDoRRop (READ(b), (a), (x))) |
| 50 | #endif |
| 51 | |
| 52 | #ifdef BITSUNIT |
| 53 | #define UNIT BITSUNIT |
| 54 | #define USE_SOLID |
| 55 | #else |
| 56 | #define UNIT BITS |
| 57 | #endif |
| 58 | |
| 59 | /* |
| 60 | * Define the following before including this file: |
| 61 | * |
| 62 | * BRESSOLID name of function for drawing a solid segment |
| 63 | * BRESDASH name of function for drawing a dashed segment |
| 64 | * DOTS name of function for drawing dots |
| 65 | * ARC name of function for drawing a solid arc |
| 66 | * BITS type of underlying unit |
| 67 | */ |
| 68 | |
| 69 | #ifdef BRESSOLID |
| 70 | void |
| 71 | BRESSOLID(DrawablePtr pDrawable, |
| 72 | GCPtr pGC, |
| 73 | int dashOffset, |
| 74 | int signdx, |
| 75 | int signdy, int axis, int x1, int y1, int e, int e1, int e3, int len) |
| 76 | { |
| 77 | FbBits *dst; |
| 78 | FbStride dstStride; |
| 79 | int dstBpp; |
| 80 | int dstXoff, dstYoff; |
| 81 | FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); |
| 82 | UNIT *bits; |
| 83 | FbStride bitsStride; |
| 84 | FbStride majorStep, minorStep; |
| 85 | BITS xor = (BITS) pPriv->xor; |
| 86 | |
| 87 | fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); |
| 88 | bits = |
| 89 | ((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff) * MUL; |
| 90 | bitsStride = dstStride * (sizeof(FbBits) / sizeof(UNIT)); |
| 91 | if (signdy < 0) |
| 92 | bitsStride = -bitsStride; |
| 93 | if (axis == X_AXIS) { |
| 94 | majorStep = signdx * MUL; |
| 95 | minorStep = bitsStride; |
| 96 | } |
| 97 | else { |
| 98 | majorStep = bitsStride; |
| 99 | minorStep = signdx * MUL; |
| 100 | } |
| 101 | while (len--) { |
| 102 | STORE(bits, xor); |
| 103 | bits += majorStep; |
| 104 | e += e1; |
| 105 | if (e >= 0) { |
| 106 | bits += minorStep; |
| 107 | e += e3; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | fbFinishAccess(pDrawable); |
| 112 | } |
| 113 | #endif |
| 114 | |
| 115 | #ifdef BRESDASH |
| 116 | void |
| 117 | BRESDASH(DrawablePtr pDrawable, |
| 118 | GCPtr pGC, |
| 119 | int dashOffset, |
| 120 | int signdx, |
| 121 | int signdy, int axis, int x1, int y1, int e, int e1, int e3, int len) |
| 122 | { |
| 123 | FbBits *dst; |
| 124 | FbStride dstStride; |
| 125 | int dstBpp; |
| 126 | int dstXoff, dstYoff; |
| 127 | FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); |
| 128 | UNIT *bits; |
| 129 | FbStride bitsStride; |
| 130 | FbStride majorStep, minorStep; |
| 131 | BITS xorfg, xorbg; |
| 132 | |
| 133 | FbDashDeclare; |
| 134 | int dashlen; |
| 135 | Bool even; |
| 136 | Bool doOdd; |
| 137 | |
| 138 | fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); |
| 139 | doOdd = pGC->lineStyle == LineDoubleDash; |
| 140 | xorfg = (BITS) pPriv->xor; |
| 141 | xorbg = (BITS) pPriv->bgxor; |
| 142 | |
| 143 | FbDashInit(pGC, pPriv, dashOffset, dashlen, even); |
| 144 | |
| 145 | bits = |
| 146 | ((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff) * MUL; |
| 147 | bitsStride = dstStride * (sizeof(FbBits) / sizeof(UNIT)); |
| 148 | if (signdy < 0) |
| 149 | bitsStride = -bitsStride; |
| 150 | if (axis == X_AXIS) { |
| 151 | majorStep = signdx * MUL; |
| 152 | minorStep = bitsStride; |
| 153 | } |
| 154 | else { |
| 155 | majorStep = bitsStride; |
| 156 | minorStep = signdx * MUL; |
| 157 | } |
| 158 | if (dashlen >= len) |
| 159 | dashlen = len; |
| 160 | if (doOdd) { |
| 161 | if (!even) |
| 162 | goto doubleOdd; |
| 163 | for (;;) { |
| 164 | len -= dashlen; |
| 165 | while (dashlen--) { |
| 166 | STORE(bits, xorfg); |
| 167 | bits += majorStep; |
| 168 | if ((e += e1) >= 0) { |
| 169 | e += e3; |
| 170 | bits += minorStep; |
| 171 | } |
| 172 | } |
| 173 | if (!len) |
| 174 | break; |
| 175 | |
| 176 | FbDashNextEven(dashlen); |
| 177 | |
| 178 | if (dashlen >= len) |
| 179 | dashlen = len; |
| 180 | doubleOdd: |
| 181 | len -= dashlen; |
| 182 | while (dashlen--) { |
| 183 | STORE(bits, xorbg); |
| 184 | bits += majorStep; |
| 185 | if ((e += e1) >= 0) { |
| 186 | e += e3; |
| 187 | bits += minorStep; |
| 188 | } |
| 189 | } |
| 190 | if (!len) |
| 191 | break; |
| 192 | |
| 193 | FbDashNextOdd(dashlen); |
| 194 | |
| 195 | if (dashlen >= len) |
| 196 | dashlen = len; |
| 197 | } |
| 198 | } |
| 199 | else { |
| 200 | if (!even) |
| 201 | goto onOffOdd; |
| 202 | for (;;) { |
| 203 | len -= dashlen; |
| 204 | while (dashlen--) { |
| 205 | STORE(bits, xorfg); |
| 206 | bits += majorStep; |
| 207 | if ((e += e1) >= 0) { |
| 208 | e += e3; |
| 209 | bits += minorStep; |
| 210 | } |
| 211 | } |
| 212 | if (!len) |
| 213 | break; |
| 214 | |
| 215 | FbDashNextEven(dashlen); |
| 216 | |
| 217 | if (dashlen >= len) |
| 218 | dashlen = len; |
| 219 | onOffOdd: |
| 220 | len -= dashlen; |
| 221 | while (dashlen--) { |
| 222 | bits += majorStep; |
| 223 | if ((e += e1) >= 0) { |
| 224 | e += e3; |
| 225 | bits += minorStep; |
| 226 | } |
| 227 | } |
| 228 | if (!len) |
| 229 | break; |
| 230 | |
| 231 | FbDashNextOdd(dashlen); |
| 232 | |
| 233 | if (dashlen >= len) |
| 234 | dashlen = len; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | fbFinishAccess(pDrawable); |
| 239 | } |
| 240 | #endif |
| 241 | |
| 242 | #ifdef DOTS |
| 243 | void |
| 244 | DOTS(FbBits * dst, |
| 245 | FbStride dstStride, |
| 246 | int dstBpp, |
| 247 | BoxPtr pBox, |
| 248 | xPoint * ptsOrig, |
| 249 | int npt, int xorg, int yorg, int xoff, int yoff, FbBits and, FbBits xor) |
| 250 | { |
| 251 | INT32 *pts = (INT32 *) ptsOrig; |
| 252 | UNIT *bits = (UNIT *) dst; |
| 253 | UNIT *point; |
| 254 | BITS bxor = (BITS) xor; |
| 255 | BITS band = (BITS) and; |
| 256 | FbStride bitsStride = dstStride * (sizeof(FbBits) / sizeof(UNIT)); |
| 257 | INT32 ul, lr; |
| 258 | INT32 pt; |
| 259 | |
| 260 | ul = coordToInt(pBox->x1 - xorg, pBox->y1 - yorg); |
| 261 | lr = coordToInt(pBox->x2 - xorg - 1, pBox->y2 - yorg - 1); |
| 262 | |
| 263 | bits += bitsStride * (yorg + yoff) + (xorg + xoff) * MUL; |
| 264 | |
| 265 | if (and == 0) { |
| 266 | while (npt--) { |
| 267 | pt = *pts++; |
| 268 | if (!isClipped(pt, ul, lr)) { |
| 269 | point = bits + intToY(pt) * bitsStride + intToX(pt) * MUL; |
| 270 | STORE(point, bxor); |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | else { |
| 275 | while (npt--) { |
| 276 | pt = *pts++; |
| 277 | if (!isClipped(pt, ul, lr)) { |
| 278 | point = bits + intToY(pt) * bitsStride + intToX(pt) * MUL; |
| 279 | RROP(point, band, bxor); |
| 280 | } |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | #endif |
| 285 | |
| 286 | #ifdef ARC |
| 287 | |
| 288 | #define ARCCOPY(d) STORE(d,xorBits) |
| 289 | #define ARCRROP(d) RROP(d,andBits,xorBits) |
| 290 | |
| 291 | void |
| 292 | ARC(FbBits * dst, |
| 293 | FbStride dstStride, |
| 294 | int dstBpp, xArc * arc, int drawX, int drawY, FbBits and, FbBits xor) |
| 295 | { |
| 296 | UNIT *bits; |
| 297 | FbStride bitsStride; |
| 298 | miZeroArcRec info; |
| 299 | Bool do360; |
| 300 | int x; |
| 301 | UNIT *yorgp, *yorgop; |
| 302 | BITS andBits, xorBits; |
| 303 | int yoffset, dyoffset; |
| 304 | int y, a, b, d, mask; |
| 305 | int k1, k3, dx, dy; |
| 306 | |
| 307 | bits = (UNIT *) dst; |
| 308 | bitsStride = dstStride * (sizeof(FbBits) / sizeof(UNIT)); |
| 309 | andBits = (BITS) and; |
| 310 | xorBits = (BITS) xor; |
| 311 | do360 = miZeroArcSetup(arc, &info, TRUE); |
| 312 | yorgp = bits + ((info.yorg + drawY) * bitsStride); |
| 313 | yorgop = bits + ((info.yorgo + drawY) * bitsStride); |
| 314 | info.xorg = (info.xorg + drawX) * MUL; |
| 315 | info.xorgo = (info.xorgo + drawX) * MUL; |
| 316 | MIARCSETUP(); |
| 317 | yoffset = y ? bitsStride : 0; |
| 318 | dyoffset = 0; |
| 319 | mask = info.initialMask; |
| 320 | |
| 321 | if (!(arc->width & 1)) { |
| 322 | if (andBits == 0) { |
| 323 | if (mask & 2) |
| 324 | ARCCOPY(yorgp + info.xorgo); |
| 325 | if (mask & 8) |
| 326 | ARCCOPY(yorgop + info.xorgo); |
| 327 | } |
| 328 | else { |
| 329 | if (mask & 2) |
| 330 | ARCRROP(yorgp + info.xorgo); |
| 331 | if (mask & 8) |
| 332 | ARCRROP(yorgop + info.xorgo); |
| 333 | } |
| 334 | } |
| 335 | if (!info.end.x || !info.end.y) { |
| 336 | mask = info.end.mask; |
| 337 | info.end = info.altend; |
| 338 | } |
| 339 | if (do360 && (arc->width == arc->height) && !(arc->width & 1)) { |
| 340 | int xoffset = bitsStride; |
| 341 | UNIT *yorghb = yorgp + (info.h * bitsStride) + info.xorg; |
| 342 | UNIT *yorgohb = yorghb - info.h * MUL; |
| 343 | |
| 344 | yorgp += info.xorg; |
| 345 | yorgop += info.xorg; |
| 346 | yorghb += info.h * MUL; |
| 347 | while (1) { |
| 348 | if (andBits == 0) { |
| 349 | ARCCOPY(yorgp + yoffset + x * MUL); |
| 350 | ARCCOPY(yorgp + yoffset - x * MUL); |
| 351 | ARCCOPY(yorgop - yoffset - x * MUL); |
| 352 | ARCCOPY(yorgop - yoffset + x * MUL); |
| 353 | } |
| 354 | else { |
| 355 | ARCRROP(yorgp + yoffset + x * MUL); |
| 356 | ARCRROP(yorgp + yoffset - x * MUL); |
| 357 | ARCRROP(yorgop - yoffset - x * MUL); |
| 358 | ARCRROP(yorgop - yoffset + x * MUL); |
| 359 | } |
| 360 | if (a < 0) |
| 361 | break; |
| 362 | if (andBits == 0) { |
| 363 | ARCCOPY(yorghb - xoffset - y * MUL); |
| 364 | ARCCOPY(yorgohb - xoffset + y * MUL); |
| 365 | ARCCOPY(yorgohb + xoffset + y * MUL); |
| 366 | ARCCOPY(yorghb + xoffset - y * MUL); |
| 367 | } |
| 368 | else { |
| 369 | ARCRROP(yorghb - xoffset - y * MUL); |
| 370 | ARCRROP(yorgohb - xoffset + y * MUL); |
| 371 | ARCRROP(yorgohb + xoffset + y * MUL); |
| 372 | ARCRROP(yorghb + xoffset - y * MUL); |
| 373 | } |
| 374 | xoffset += bitsStride; |
| 375 | MIARCCIRCLESTEP(yoffset += bitsStride; |
| 376 | ); |
| 377 | } |
| 378 | yorgp -= info.xorg; |
| 379 | yorgop -= info.xorg; |
| 380 | x = info.w; |
| 381 | yoffset = info.h * bitsStride; |
| 382 | } |
| 383 | else if (do360) { |
| 384 | while (y < info.h || x < info.w) { |
| 385 | MIARCOCTANTSHIFT(dyoffset = bitsStride; |
| 386 | ); |
| 387 | if (andBits == 0) { |
| 388 | ARCCOPY(yorgp + yoffset + info.xorg + x * MUL); |
| 389 | ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL); |
| 390 | ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL); |
| 391 | ARCCOPY(yorgop - yoffset + info.xorg + x * MUL); |
| 392 | } |
| 393 | else { |
| 394 | ARCRROP(yorgp + yoffset + info.xorg + x * MUL); |
| 395 | ARCRROP(yorgp + yoffset + info.xorgo - x * MUL); |
| 396 | ARCRROP(yorgop - yoffset + info.xorgo - x * MUL); |
| 397 | ARCRROP(yorgop - yoffset + info.xorg + x * MUL); |
| 398 | } |
| 399 | MIARCSTEP(yoffset += dyoffset; |
| 400 | , yoffset += bitsStride; |
| 401 | ); |
| 402 | } |
| 403 | } |
| 404 | else { |
| 405 | while (y < info.h || x < info.w) { |
| 406 | MIARCOCTANTSHIFT(dyoffset = bitsStride; |
| 407 | ); |
| 408 | if ((x == info.start.x) || (y == info.start.y)) { |
| 409 | mask = info.start.mask; |
| 410 | info.start = info.altstart; |
| 411 | } |
| 412 | if (andBits == 0) { |
| 413 | if (mask & 1) |
| 414 | ARCCOPY(yorgp + yoffset + info.xorg + x * MUL); |
| 415 | if (mask & 2) |
| 416 | ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL); |
| 417 | if (mask & 4) |
| 418 | ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL); |
| 419 | if (mask & 8) |
| 420 | ARCCOPY(yorgop - yoffset + info.xorg + x * MUL); |
| 421 | } |
| 422 | else { |
| 423 | if (mask & 1) |
| 424 | ARCRROP(yorgp + yoffset + info.xorg + x * MUL); |
| 425 | if (mask & 2) |
| 426 | ARCRROP(yorgp + yoffset + info.xorgo - x * MUL); |
| 427 | if (mask & 4) |
| 428 | ARCRROP(yorgop - yoffset + info.xorgo - x * MUL); |
| 429 | if (mask & 8) |
| 430 | ARCRROP(yorgop - yoffset + info.xorg + x * MUL); |
| 431 | } |
| 432 | if ((x == info.end.x) || (y == info.end.y)) { |
| 433 | mask = info.end.mask; |
| 434 | info.end = info.altend; |
| 435 | } |
| 436 | MIARCSTEP(yoffset += dyoffset; |
| 437 | , yoffset += bitsStride; |
| 438 | ); |
| 439 | } |
| 440 | } |
| 441 | if ((x == info.start.x) || (y == info.start.y)) |
| 442 | mask = info.start.mask; |
| 443 | if (andBits == 0) { |
| 444 | if (mask & 1) |
| 445 | ARCCOPY(yorgp + yoffset + info.xorg + x * MUL); |
| 446 | if (mask & 4) |
| 447 | ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL); |
| 448 | if (arc->height & 1) { |
| 449 | if (mask & 2) |
| 450 | ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL); |
| 451 | if (mask & 8) |
| 452 | ARCCOPY(yorgop - yoffset + info.xorg + x * MUL); |
| 453 | } |
| 454 | } |
| 455 | else { |
| 456 | if (mask & 1) |
| 457 | ARCRROP(yorgp + yoffset + info.xorg + x * MUL); |
| 458 | if (mask & 4) |
| 459 | ARCRROP(yorgop - yoffset + info.xorgo - x * MUL); |
| 460 | if (arc->height & 1) { |
| 461 | if (mask & 2) |
| 462 | ARCRROP(yorgp + yoffset + info.xorgo - x * MUL); |
| 463 | if (mask & 8) |
| 464 | ARCRROP(yorgop - yoffset + info.xorg + x * MUL); |
| 465 | } |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | #undef ARCCOPY |
| 470 | #undef ARCRROP |
| 471 | #endif |
| 472 | |
| 473 | #ifdef GLYPH |
| 474 | #if BITMAP_BIT_ORDER == LSBFirst |
| 475 | #define WRITE_ADDR1(n) (n) |
| 476 | #define WRITE_ADDR2(n) (n) |
| 477 | #define WRITE_ADDR4(n) (n) |
| 478 | #else |
| 479 | #define WRITE_ADDR1(n) ((n) ^ 3) |
| 480 | #define WRITE_ADDR2(n) ((n) ^ 2) |
| 481 | #define WRITE_ADDR4(n) ((n)) |
| 482 | #endif |
| 483 | |
| 484 | #define WRITE1(d,n,fg) WRITE(d + WRITE_ADDR1(n), (BITS) (fg)) |
| 485 | |
| 486 | #ifdef BITS2 |
| 487 | #define WRITE2(d,n,fg) WRITE((BITS2 *) &((d)[WRITE_ADDR2(n)]), (BITS2) (fg)) |
| 488 | #else |
| 489 | #define WRITE2(d,n,fg) (WRITE1(d,n,fg), WRITE1(d,(n)+1,fg)) |
| 490 | #endif |
| 491 | |
| 492 | #ifdef BITS4 |
| 493 | #define WRITE4(d,n,fg) WRITE((BITS4 *) &((d)[WRITE_ADDR4(n)]), (BITS4) (fg)) |
| 494 | #else |
| 495 | #define WRITE4(d,n,fg) (WRITE2(d,n,fg), WRITE2(d,(n)+2,fg)) |
| 496 | #endif |
| 497 | |
| 498 | void |
| 499 | GLYPH(FbBits * dstBits, |
| 500 | FbStride dstStride, |
| 501 | int dstBpp, FbStip * stipple, FbBits fg, int x, int height) |
| 502 | { |
| 503 | int lshift; |
| 504 | FbStip bits; |
| 505 | BITS *dstLine; |
| 506 | BITS *dst; |
| 507 | int n; |
| 508 | int shift; |
| 509 | |
| 510 | dstLine = (BITS *) dstBits; |
| 511 | dstLine += x & ~3; |
| 512 | dstStride *= (sizeof(FbBits) / sizeof(BITS)); |
| 513 | shift = x & 3; |
| 514 | lshift = 4 - shift; |
| 515 | while (height--) { |
| 516 | bits = *stipple++; |
| 517 | dst = (BITS *) dstLine; |
| 518 | n = lshift; |
| 519 | while (bits) { |
| 520 | switch (FbStipMoveLsb(FbLeftStipBits(bits, n), 4, n)) { |
| 521 | case 0: |
| 522 | break; |
| 523 | case 1: |
| 524 | WRITE1(dst, 0, fg); |
| 525 | break; |
| 526 | case 2: |
| 527 | WRITE1(dst, 1, fg); |
| 528 | break; |
| 529 | case 3: |
| 530 | WRITE2(dst, 0, fg); |
| 531 | break; |
| 532 | case 4: |
| 533 | WRITE1(dst, 2, fg); |
| 534 | break; |
| 535 | case 5: |
| 536 | WRITE1(dst, 0, fg); |
| 537 | WRITE1(dst, 2, fg); |
| 538 | break; |
| 539 | case 6: |
| 540 | WRITE1(dst, 1, fg); |
| 541 | WRITE1(dst, 2, fg); |
| 542 | break; |
| 543 | case 7: |
| 544 | WRITE2(dst, 0, fg); |
| 545 | WRITE1(dst, 2, fg); |
| 546 | break; |
| 547 | case 8: |
| 548 | WRITE1(dst, 3, fg); |
| 549 | break; |
| 550 | case 9: |
| 551 | WRITE1(dst, 0, fg); |
| 552 | WRITE1(dst, 3, fg); |
| 553 | break; |
| 554 | case 10: |
| 555 | WRITE1(dst, 1, fg); |
| 556 | WRITE1(dst, 3, fg); |
| 557 | break; |
| 558 | case 11: |
| 559 | WRITE2(dst, 0, fg); |
| 560 | WRITE1(dst, 3, fg); |
| 561 | break; |
| 562 | case 12: |
| 563 | WRITE2(dst, 2, fg); |
| 564 | break; |
| 565 | case 13: |
| 566 | WRITE1(dst, 0, fg); |
| 567 | WRITE2(dst, 2, fg); |
| 568 | break; |
| 569 | case 14: |
| 570 | WRITE1(dst, 1, fg); |
| 571 | WRITE2(dst, 2, fg); |
| 572 | break; |
| 573 | case 15: |
| 574 | WRITE4(dst, 0, fg); |
| 575 | break; |
| 576 | } |
| 577 | bits = FbStipLeft(bits, n); |
| 578 | n = 4; |
| 579 | dst += 4; |
| 580 | } |
| 581 | dstLine += dstStride; |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | #undef WRITE_ADDR1 |
| 586 | #undef WRITE_ADDR2 |
| 587 | #undef WRITE_ADDR4 |
| 588 | #undef WRITE1 |
| 589 | #undef WRITE2 |
| 590 | #undef WRITE4 |
| 591 | |
| 592 | #endif |
| 593 | |
| 594 | #ifdef POLYLINE |
| 595 | void |
| 596 | POLYLINE(DrawablePtr pDrawable, |
| 597 | GCPtr pGC, int mode, int npt, DDXPointPtr ptsOrig) |
| 598 | { |
| 599 | INT32 *pts = (INT32 *) ptsOrig; |
| 600 | int xoff = pDrawable->x; |
| 601 | int yoff = pDrawable->y; |
| 602 | unsigned int bias = miGetZeroLineBias(pDrawable->pScreen); |
| 603 | BoxPtr pBox = RegionExtents(fbGetCompositeClip(pGC)); |
| 604 | |
| 605 | FbBits *dst; |
| 606 | int dstStride; |
| 607 | int dstBpp; |
| 608 | int dstXoff, dstYoff; |
| 609 | |
| 610 | UNIT *bits, *bitsBase; |
| 611 | FbStride bitsStride; |
| 612 | BITS xor = fbGetGCPrivate(pGC)->xor; |
| 613 | BITS and = fbGetGCPrivate(pGC)->and; |
| 614 | int dashoffset = 0; |
| 615 | |
| 616 | INT32 ul, lr; |
| 617 | INT32 pt1, pt2; |
| 618 | |
| 619 | int e, e1, e3, len; |
| 620 | int stepmajor, stepminor; |
| 621 | int octant; |
| 622 | |
| 623 | if (mode == CoordModePrevious) |
| 624 | fbFixCoordModePrevious(npt, ptsOrig); |
| 625 | |
| 626 | fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); |
| 627 | bitsStride = dstStride * (sizeof(FbBits) / sizeof(UNIT)); |
| 628 | bitsBase = |
| 629 | ((UNIT *) dst) + (yoff + dstYoff) * bitsStride + (xoff + dstXoff) * MUL; |
| 630 | ul = coordToInt(pBox->x1 - xoff, pBox->y1 - yoff); |
| 631 | lr = coordToInt(pBox->x2 - xoff - 1, pBox->y2 - yoff - 1); |
| 632 | |
| 633 | pt1 = *pts++; |
| 634 | npt--; |
| 635 | pt2 = *pts++; |
| 636 | npt--; |
| 637 | for (;;) { |
| 638 | if (isClipped(pt1, ul, lr) | isClipped(pt2, ul, lr)) { |
| 639 | fbSegment(pDrawable, pGC, |
| 640 | intToX(pt1) + xoff, intToY(pt1) + yoff, |
| 641 | intToX(pt2) + xoff, intToY(pt2) + yoff, |
| 642 | npt == 0 && pGC->capStyle != CapNotLast, &dashoffset); |
| 643 | if (!npt) { |
| 644 | fbFinishAccess(pDrawable); |
| 645 | return; |
| 646 | } |
| 647 | pt1 = pt2; |
| 648 | pt2 = *pts++; |
| 649 | npt--; |
| 650 | } |
| 651 | else { |
| 652 | bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1) * MUL; |
| 653 | for (;;) { |
| 654 | CalcLineDeltas(intToX(pt1), intToY(pt1), |
| 655 | intToX(pt2), intToY(pt2), |
| 656 | len, e1, stepmajor, stepminor, 1, bitsStride, |
| 657 | octant); |
| 658 | stepmajor *= MUL; |
| 659 | if (len < e1) { |
| 660 | e3 = len; |
| 661 | len = e1; |
| 662 | e1 = e3; |
| 663 | |
| 664 | e3 = stepminor; |
| 665 | stepminor = stepmajor; |
| 666 | stepmajor = e3; |
| 667 | SetYMajorOctant(octant); |
| 668 | } |
| 669 | e = -len; |
| 670 | e1 <<= 1; |
| 671 | e3 = e << 1; |
| 672 | FIXUP_ERROR(e, octant, bias); |
| 673 | if (and == 0) { |
| 674 | while (len--) { |
| 675 | STORE(bits, xor); |
| 676 | bits += stepmajor; |
| 677 | e += e1; |
| 678 | if (e >= 0) { |
| 679 | bits += stepminor; |
| 680 | e += e3; |
| 681 | } |
| 682 | } |
| 683 | } |
| 684 | else { |
| 685 | while (len--) { |
| 686 | RROP(bits, and, xor); |
| 687 | bits += stepmajor; |
| 688 | e += e1; |
| 689 | if (e >= 0) { |
| 690 | bits += stepminor; |
| 691 | e += e3; |
| 692 | } |
| 693 | } |
| 694 | } |
| 695 | if (!npt) { |
| 696 | if (pGC->capStyle != CapNotLast && |
| 697 | pt2 != *((INT32 *) ptsOrig)) { |
| 698 | RROP(bits, and, xor); |
| 699 | } |
| 700 | fbFinishAccess(pDrawable); |
| 701 | return; |
| 702 | } |
| 703 | pt1 = pt2; |
| 704 | pt2 = *pts++; |
| 705 | --npt; |
| 706 | if (isClipped(pt2, ul, lr)) |
| 707 | break; |
| 708 | } |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | fbFinishAccess(pDrawable); |
| 713 | } |
| 714 | #endif |
| 715 | |
| 716 | #ifdef POLYSEGMENT |
| 717 | void |
| 718 | POLYSEGMENT(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg) |
| 719 | { |
| 720 | INT32 *pts = (INT32 *) pseg; |
| 721 | int xoff = pDrawable->x; |
| 722 | int yoff = pDrawable->y; |
| 723 | unsigned int bias = miGetZeroLineBias(pDrawable->pScreen); |
| 724 | BoxPtr pBox = RegionExtents(fbGetCompositeClip(pGC)); |
| 725 | |
| 726 | FbBits *dst; |
| 727 | int dstStride; |
| 728 | int dstBpp; |
| 729 | int dstXoff, dstYoff; |
| 730 | |
| 731 | UNIT *bits, *bitsBase; |
| 732 | FbStride bitsStride; |
| 733 | FbBits xorBits = fbGetGCPrivate(pGC)->xor; |
| 734 | FbBits andBits = fbGetGCPrivate(pGC)->and; |
| 735 | BITS xor = xorBits; |
| 736 | BITS and = andBits; |
| 737 | int dashoffset = 0; |
| 738 | |
| 739 | INT32 ul, lr; |
| 740 | INT32 pt1, pt2; |
| 741 | |
| 742 | int e, e1, e3, len; |
| 743 | int stepmajor, stepminor; |
| 744 | int octant; |
| 745 | Bool capNotLast; |
| 746 | |
| 747 | fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); |
| 748 | bitsStride = dstStride * (sizeof(FbBits) / sizeof(UNIT)); |
| 749 | bitsBase = |
| 750 | ((UNIT *) dst) + (yoff + dstYoff) * bitsStride + (xoff + dstXoff) * MUL; |
| 751 | ul = coordToInt(pBox->x1 - xoff, pBox->y1 - yoff); |
| 752 | lr = coordToInt(pBox->x2 - xoff - 1, pBox->y2 - yoff - 1); |
| 753 | |
| 754 | capNotLast = pGC->capStyle == CapNotLast; |
| 755 | |
| 756 | while (nseg--) { |
| 757 | pt1 = *pts++; |
| 758 | pt2 = *pts++; |
| 759 | if (isClipped(pt1, ul, lr) | isClipped(pt2, ul, lr)) { |
| 760 | fbSegment(pDrawable, pGC, |
| 761 | intToX(pt1) + xoff, intToY(pt1) + yoff, |
| 762 | intToX(pt2) + xoff, intToY(pt2) + yoff, |
| 763 | !capNotLast, &dashoffset); |
| 764 | } |
| 765 | else { |
| 766 | CalcLineDeltas(intToX(pt1), intToY(pt1), |
| 767 | intToX(pt2), intToY(pt2), |
| 768 | len, e1, stepmajor, stepminor, 1, bitsStride, |
| 769 | octant); |
| 770 | if (e1 == 0 && len > 3 |
| 771 | #if MUL != 1 |
| 772 | && FbCheck24Pix(and) && FbCheck24Pix(xor) |
| 773 | #endif |
| 774 | ) { |
| 775 | int x1, x2; |
| 776 | FbBits *dstLine; |
| 777 | int dstX, width; |
| 778 | FbBits startmask, endmask; |
| 779 | int nmiddle; |
| 780 | |
| 781 | if (stepmajor < 0) { |
| 782 | x1 = intToX(pt2); |
| 783 | x2 = intToX(pt1) + 1; |
| 784 | if (capNotLast) |
| 785 | x1++; |
| 786 | } |
| 787 | else { |
| 788 | x1 = intToX(pt1); |
| 789 | x2 = intToX(pt2); |
| 790 | if (!capNotLast) |
| 791 | x2++; |
| 792 | } |
| 793 | dstX = (x1 + xoff + dstXoff) * (sizeof(UNIT) * 8 * MUL); |
| 794 | width = (x2 - x1) * (sizeof(UNIT) * 8 * MUL); |
| 795 | |
| 796 | dstLine = dst + (intToY(pt1) + yoff + dstYoff) * dstStride; |
| 797 | dstLine += dstX >> FB_SHIFT; |
| 798 | dstX &= FB_MASK; |
| 799 | FbMaskBits(dstX, width, startmask, nmiddle, endmask); |
| 800 | if (startmask) { |
| 801 | WRITE(dstLine, |
| 802 | FbDoMaskRRop(READ(dstLine), andBits, xorBits, |
| 803 | startmask)); |
| 804 | dstLine++; |
| 805 | } |
| 806 | if (!andBits) |
| 807 | while (nmiddle--) |
| 808 | WRITE(dstLine++, xorBits); |
| 809 | else |
| 810 | while (nmiddle--) { |
| 811 | WRITE(dstLine, |
| 812 | FbDoRRop(READ(dstLine), andBits, xorBits)); |
| 813 | dstLine++; |
| 814 | } |
| 815 | if (endmask) |
| 816 | WRITE(dstLine, |
| 817 | FbDoMaskRRop(READ(dstLine), andBits, xorBits, |
| 818 | endmask)); |
| 819 | } |
| 820 | else { |
| 821 | stepmajor *= MUL; |
| 822 | bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1) * MUL; |
| 823 | if (len < e1) { |
| 824 | e3 = len; |
| 825 | len = e1; |
| 826 | e1 = e3; |
| 827 | |
| 828 | e3 = stepminor; |
| 829 | stepminor = stepmajor; |
| 830 | stepmajor = e3; |
| 831 | SetYMajorOctant(octant); |
| 832 | } |
| 833 | e = -len; |
| 834 | e1 <<= 1; |
| 835 | e3 = e << 1; |
| 836 | FIXUP_ERROR(e, octant, bias); |
| 837 | if (!capNotLast) |
| 838 | len++; |
| 839 | if (and == 0) { |
| 840 | while (len--) { |
| 841 | STORE(bits, xor); |
| 842 | bits += stepmajor; |
| 843 | e += e1; |
| 844 | if (e >= 0) { |
| 845 | bits += stepminor; |
| 846 | e += e3; |
| 847 | } |
| 848 | } |
| 849 | } |
| 850 | else { |
| 851 | while (len--) { |
| 852 | RROP(bits, and, xor); |
| 853 | bits += stepmajor; |
| 854 | e += e1; |
| 855 | if (e >= 0) { |
| 856 | bits += stepminor; |
| 857 | e += e3; |
| 858 | } |
| 859 | } |
| 860 | } |
| 861 | } |
| 862 | } |
| 863 | } |
| 864 | |
| 865 | fbFinishAccess(pDrawable); |
| 866 | } |
| 867 | #endif |
| 868 | |
| 869 | #undef MUL |
| 870 | #undef STORE |
| 871 | #undef RROP |
| 872 | #undef UNIT |
| 873 | #undef USE_SOLID |
| 874 | |
| 875 | #undef isClipped |