| 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 | #ifdef HAVE_DIX_CONFIG_H |
| 24 | #include <dix-config.h> |
| 25 | #endif |
| 26 | |
| 27 | #include <string.h> |
| 28 | #include "fb.h" |
| 29 | |
| 30 | #define InitializeShifts(sx,dx,ls,rs) { \ |
| 31 | if (sx != dx) { \ |
| 32 | if (sx > dx) { \ |
| 33 | ls = sx - dx; \ |
| 34 | rs = FB_UNIT - ls; \ |
| 35 | } else { \ |
| 36 | rs = dx - sx; \ |
| 37 | ls = FB_UNIT - rs; \ |
| 38 | } \ |
| 39 | } \ |
| 40 | } |
| 41 | |
| 42 | void |
| 43 | fbBlt(FbBits * srcLine, |
| 44 | FbStride srcStride, |
| 45 | int srcX, |
| 46 | FbBits * dstLine, |
| 47 | FbStride dstStride, |
| 48 | int dstX, |
| 49 | int width, |
| 50 | int height, int alu, FbBits pm, int bpp, Bool reverse, Bool upsidedown) |
| 51 | { |
| 52 | FbBits *src, *dst; |
| 53 | int leftShift, rightShift; |
| 54 | FbBits startmask, endmask; |
| 55 | FbBits bits, bits1; |
| 56 | int n, nmiddle; |
| 57 | Bool destInvarient; |
| 58 | int startbyte, endbyte; |
| 59 | int careful; |
| 60 | |
| 61 | FbDeclareMergeRop(); |
| 62 | |
| 63 | if (bpp == 24 && !FbCheck24Pix(pm)) { |
| 64 | fbBlt24(srcLine, srcStride, srcX, dstLine, dstStride, dstX, |
| 65 | width, height, alu, pm, reverse, upsidedown); |
| 66 | return; |
| 67 | } |
| 68 | |
| 69 | careful = !((srcLine < dstLine && srcLine + width * (bpp >> 3) > dstLine) || |
| 70 | (dstLine < srcLine && dstLine + width * (bpp >> 3) > srcLine)) |
| 71 | || (bpp & 7); |
| 72 | |
| 73 | if (alu == GXcopy && pm == FB_ALLONES && !careful && |
| 74 | !(srcX & 7) && !(dstX & 7) && !(width & 7)) { |
| 75 | int i; |
| 76 | CARD8 *tmpsrc = (CARD8 *) srcLine; |
| 77 | CARD8 *tmpdst = (CARD8 *) dstLine; |
| 78 | |
| 79 | srcStride *= sizeof(FbBits); |
| 80 | dstStride *= sizeof(FbBits); |
| 81 | width >>= 3; |
| 82 | tmpsrc += (srcX >> 3); |
| 83 | tmpdst += (dstX >> 3); |
| 84 | |
| 85 | if (!upsidedown) |
| 86 | for (i = 0; i < height; i++) |
| 87 | MEMCPY_WRAPPED(tmpdst + i * dstStride, tmpsrc + i * srcStride, width); |
| 88 | else |
| 89 | for (i = height - 1; i >= 0; i--) |
| 90 | MEMCPY_WRAPPED(tmpdst + i * dstStride, tmpsrc + i * srcStride, width); |
| 91 | |
| 92 | return; |
| 93 | } |
| 94 | |
| 95 | FbInitializeMergeRop(alu, pm); |
| 96 | destInvarient = FbDestInvarientMergeRop(); |
| 97 | if (upsidedown) { |
| 98 | srcLine += (height - 1) * (srcStride); |
| 99 | dstLine += (height - 1) * (dstStride); |
| 100 | srcStride = -srcStride; |
| 101 | dstStride = -dstStride; |
| 102 | } |
| 103 | FbMaskBitsBytes(dstX, width, destInvarient, startmask, startbyte, |
| 104 | nmiddle, endmask, endbyte); |
| 105 | if (reverse) { |
| 106 | srcLine += ((srcX + width - 1) >> FB_SHIFT) + 1; |
| 107 | dstLine += ((dstX + width - 1) >> FB_SHIFT) + 1; |
| 108 | srcX = (srcX + width - 1) & FB_MASK; |
| 109 | dstX = (dstX + width - 1) & FB_MASK; |
| 110 | } |
| 111 | else { |
| 112 | srcLine += srcX >> FB_SHIFT; |
| 113 | dstLine += dstX >> FB_SHIFT; |
| 114 | srcX &= FB_MASK; |
| 115 | dstX &= FB_MASK; |
| 116 | } |
| 117 | if (srcX == dstX) { |
| 118 | while (height--) { |
| 119 | src = srcLine; |
| 120 | srcLine += srcStride; |
| 121 | dst = dstLine; |
| 122 | dstLine += dstStride; |
| 123 | if (reverse) { |
| 124 | if (endmask) { |
| 125 | bits = READ(--src); |
| 126 | --dst; |
| 127 | FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask); |
| 128 | } |
| 129 | n = nmiddle; |
| 130 | if (destInvarient) { |
| 131 | while (n--) |
| 132 | WRITE(--dst, FbDoDestInvarientMergeRop(READ(--src))); |
| 133 | } |
| 134 | else { |
| 135 | while (n--) { |
| 136 | bits = READ(--src); |
| 137 | --dst; |
| 138 | WRITE(dst, FbDoMergeRop(bits, READ(dst))); |
| 139 | } |
| 140 | } |
| 141 | if (startmask) { |
| 142 | bits = READ(--src); |
| 143 | --dst; |
| 144 | FbDoLeftMaskByteMergeRop(dst, bits, startbyte, startmask); |
| 145 | } |
| 146 | } |
| 147 | else { |
| 148 | if (startmask) { |
| 149 | bits = READ(src++); |
| 150 | FbDoLeftMaskByteMergeRop(dst, bits, startbyte, startmask); |
| 151 | dst++; |
| 152 | } |
| 153 | n = nmiddle; |
| 154 | if (destInvarient) { |
| 155 | #if 0 |
| 156 | /* |
| 157 | * This provides some speedup on screen->screen blts |
| 158 | * over the PCI bus, usually about 10%. But fb |
| 159 | * isn't usually used for this operation... |
| 160 | */ |
| 161 | if (_ca2 + 1 == 0 && _cx2 == 0) { |
| 162 | FbBits t1, t2, t3, t4; |
| 163 | |
| 164 | while (n >= 4) { |
| 165 | t1 = *src++; |
| 166 | t2 = *src++; |
| 167 | t3 = *src++; |
| 168 | t4 = *src++; |
| 169 | *dst++ = t1; |
| 170 | *dst++ = t2; |
| 171 | *dst++ = t3; |
| 172 | *dst++ = t4; |
| 173 | n -= 4; |
| 174 | } |
| 175 | } |
| 176 | #endif |
| 177 | while (n--) |
| 178 | WRITE(dst++, FbDoDestInvarientMergeRop(READ(src++))); |
| 179 | } |
| 180 | else { |
| 181 | while (n--) { |
| 182 | bits = READ(src++); |
| 183 | WRITE(dst, FbDoMergeRop(bits, READ(dst))); |
| 184 | dst++; |
| 185 | } |
| 186 | } |
| 187 | if (endmask) { |
| 188 | bits = READ(src); |
| 189 | FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask); |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | else { |
| 195 | if (srcX > dstX) { |
| 196 | leftShift = srcX - dstX; |
| 197 | rightShift = FB_UNIT - leftShift; |
| 198 | } |
| 199 | else { |
| 200 | rightShift = dstX - srcX; |
| 201 | leftShift = FB_UNIT - rightShift; |
| 202 | } |
| 203 | while (height--) { |
| 204 | src = srcLine; |
| 205 | srcLine += srcStride; |
| 206 | dst = dstLine; |
| 207 | dstLine += dstStride; |
| 208 | |
| 209 | bits1 = 0; |
| 210 | if (reverse) { |
| 211 | if (srcX < dstX) |
| 212 | bits1 = READ(--src); |
| 213 | if (endmask) { |
| 214 | bits = FbScrRight(bits1, rightShift); |
| 215 | if (FbScrRight(endmask, leftShift)) { |
| 216 | bits1 = READ(--src); |
| 217 | bits |= FbScrLeft(bits1, leftShift); |
| 218 | } |
| 219 | --dst; |
| 220 | FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask); |
| 221 | } |
| 222 | n = nmiddle; |
| 223 | if (destInvarient) { |
| 224 | while (n--) { |
| 225 | bits = FbScrRight(bits1, rightShift); |
| 226 | bits1 = READ(--src); |
| 227 | bits |= FbScrLeft(bits1, leftShift); |
| 228 | --dst; |
| 229 | WRITE(dst, FbDoDestInvarientMergeRop(bits)); |
| 230 | } |
| 231 | } |
| 232 | else { |
| 233 | while (n--) { |
| 234 | bits = FbScrRight(bits1, rightShift); |
| 235 | bits1 = READ(--src); |
| 236 | bits |= FbScrLeft(bits1, leftShift); |
| 237 | --dst; |
| 238 | WRITE(dst, FbDoMergeRop(bits, READ(dst))); |
| 239 | } |
| 240 | } |
| 241 | if (startmask) { |
| 242 | bits = FbScrRight(bits1, rightShift); |
| 243 | if (FbScrRight(startmask, leftShift)) { |
| 244 | bits1 = READ(--src); |
| 245 | bits |= FbScrLeft(bits1, leftShift); |
| 246 | } |
| 247 | --dst; |
| 248 | FbDoLeftMaskByteMergeRop(dst, bits, startbyte, startmask); |
| 249 | } |
| 250 | } |
| 251 | else { |
| 252 | if (srcX > dstX) |
| 253 | bits1 = READ(src++); |
| 254 | if (startmask) { |
| 255 | bits = FbScrLeft(bits1, leftShift); |
| 256 | if (FbScrLeft(startmask, rightShift)) { |
| 257 | bits1 = READ(src++); |
| 258 | bits |= FbScrRight(bits1, rightShift); |
| 259 | } |
| 260 | FbDoLeftMaskByteMergeRop(dst, bits, startbyte, startmask); |
| 261 | dst++; |
| 262 | } |
| 263 | n = nmiddle; |
| 264 | if (destInvarient) { |
| 265 | while (n--) { |
| 266 | bits = FbScrLeft(bits1, leftShift); |
| 267 | bits1 = READ(src++); |
| 268 | bits |= FbScrRight(bits1, rightShift); |
| 269 | WRITE(dst, FbDoDestInvarientMergeRop(bits)); |
| 270 | dst++; |
| 271 | } |
| 272 | } |
| 273 | else { |
| 274 | while (n--) { |
| 275 | bits = FbScrLeft(bits1, leftShift); |
| 276 | bits1 = READ(src++); |
| 277 | bits |= FbScrRight(bits1, rightShift); |
| 278 | WRITE(dst, FbDoMergeRop(bits, READ(dst))); |
| 279 | dst++; |
| 280 | } |
| 281 | } |
| 282 | if (endmask) { |
| 283 | bits = FbScrLeft(bits1, leftShift); |
| 284 | if (FbScrLeft(endmask, rightShift)) { |
| 285 | bits1 = READ(src); |
| 286 | bits |= FbScrRight(bits1, rightShift); |
| 287 | } |
| 288 | FbDoRightMaskByteMergeRop(dst, bits, endbyte, endmask); |
| 289 | } |
| 290 | } |
| 291 | } |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | #undef DEBUG_BLT24 |
| 296 | #ifdef DEBUG_BLT24 |
| 297 | |
| 298 | static unsigned long |
| 299 | getPixel(char *src, int x) |
| 300 | { |
| 301 | unsigned long l; |
| 302 | |
| 303 | l = 0; |
| 304 | memcpy(&l, src + x * 3, 3); |
| 305 | return l; |
| 306 | } |
| 307 | #endif |
| 308 | |
| 309 | static void |
| 310 | fbBlt24Line(FbBits * src, |
| 311 | int srcX, |
| 312 | FbBits * dst, int dstX, int width, int alu, FbBits pm, Bool reverse) |
| 313 | { |
| 314 | #ifdef DEBUG_BLT24 |
| 315 | char *origDst = (char *) dst; |
| 316 | FbBits *origLine = dst + ((dstX >> FB_SHIFT) - 1); |
| 317 | int origNlw = ((width + FB_MASK) >> FB_SHIFT) + 3; |
| 318 | int origX = dstX / 24; |
| 319 | #endif |
| 320 | |
| 321 | int leftShift, rightShift; |
| 322 | FbBits startmask, endmask; |
| 323 | int n; |
| 324 | |
| 325 | FbBits bits, bits1; |
| 326 | FbBits mask; |
| 327 | |
| 328 | int rot; |
| 329 | |
| 330 | FbDeclareMergeRop(); |
| 331 | |
| 332 | FbInitializeMergeRop(alu, FB_ALLONES); |
| 333 | FbMaskBits(dstX, width, startmask, n, endmask); |
| 334 | #ifdef DEBUG_BLT24 |
| 335 | ErrorF("dstX %d width %d reverse %d\n", dstX, width, reverse); |
| 336 | #endif |
| 337 | if (reverse) { |
| 338 | src += ((srcX + width - 1) >> FB_SHIFT) + 1; |
| 339 | dst += ((dstX + width - 1) >> FB_SHIFT) + 1; |
| 340 | rot = FbFirst24Rot(((dstX + width - 8) & FB_MASK)); |
| 341 | rot = FbPrev24Rot(rot); |
| 342 | #ifdef DEBUG_BLT24 |
| 343 | ErrorF("dstX + width - 8: %d rot: %d\n", (dstX + width - 8) & FB_MASK, |
| 344 | rot); |
| 345 | #endif |
| 346 | srcX = (srcX + width - 1) & FB_MASK; |
| 347 | dstX = (dstX + width - 1) & FB_MASK; |
| 348 | } |
| 349 | else { |
| 350 | src += srcX >> FB_SHIFT; |
| 351 | dst += dstX >> FB_SHIFT; |
| 352 | srcX &= FB_MASK; |
| 353 | dstX &= FB_MASK; |
| 354 | rot = FbFirst24Rot(dstX); |
| 355 | #ifdef DEBUG_BLT24 |
| 356 | ErrorF("dstX: %d rot: %d\n", dstX, rot); |
| 357 | #endif |
| 358 | } |
| 359 | mask = FbRot24(pm, rot); |
| 360 | #ifdef DEBUG_BLT24 |
| 361 | ErrorF("pm 0x%x mask 0x%x\n", pm, mask); |
| 362 | #endif |
| 363 | if (srcX == dstX) { |
| 364 | if (reverse) { |
| 365 | if (endmask) { |
| 366 | bits = READ(--src); |
| 367 | --dst; |
| 368 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & endmask)); |
| 369 | mask = FbPrev24Pix(mask); |
| 370 | } |
| 371 | while (n--) { |
| 372 | bits = READ(--src); |
| 373 | --dst; |
| 374 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask)); |
| 375 | mask = FbPrev24Pix(mask); |
| 376 | } |
| 377 | if (startmask) { |
| 378 | bits = READ(--src); |
| 379 | --dst; |
| 380 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & startmask)); |
| 381 | } |
| 382 | } |
| 383 | else { |
| 384 | if (startmask) { |
| 385 | bits = READ(src++); |
| 386 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & startmask)); |
| 387 | dst++; |
| 388 | mask = FbNext24Pix(mask); |
| 389 | } |
| 390 | while (n--) { |
| 391 | bits = READ(src++); |
| 392 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask)); |
| 393 | dst++; |
| 394 | mask = FbNext24Pix(mask); |
| 395 | } |
| 396 | if (endmask) { |
| 397 | bits = READ(src); |
| 398 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & endmask)); |
| 399 | } |
| 400 | } |
| 401 | } |
| 402 | else { |
| 403 | if (srcX > dstX) { |
| 404 | leftShift = srcX - dstX; |
| 405 | rightShift = FB_UNIT - leftShift; |
| 406 | } |
| 407 | else { |
| 408 | rightShift = dstX - srcX; |
| 409 | leftShift = FB_UNIT - rightShift; |
| 410 | } |
| 411 | |
| 412 | bits1 = 0; |
| 413 | if (reverse) { |
| 414 | if (srcX < dstX) |
| 415 | bits1 = READ(--src); |
| 416 | if (endmask) { |
| 417 | bits = FbScrRight(bits1, rightShift); |
| 418 | if (FbScrRight(endmask, leftShift)) { |
| 419 | bits1 = READ(--src); |
| 420 | bits |= FbScrLeft(bits1, leftShift); |
| 421 | } |
| 422 | --dst; |
| 423 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & endmask)); |
| 424 | mask = FbPrev24Pix(mask); |
| 425 | } |
| 426 | while (n--) { |
| 427 | bits = FbScrRight(bits1, rightShift); |
| 428 | bits1 = READ(--src); |
| 429 | bits |= FbScrLeft(bits1, leftShift); |
| 430 | --dst; |
| 431 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask)); |
| 432 | mask = FbPrev24Pix(mask); |
| 433 | } |
| 434 | if (startmask) { |
| 435 | bits = FbScrRight(bits1, rightShift); |
| 436 | if (FbScrRight(startmask, leftShift)) { |
| 437 | bits1 = READ(--src); |
| 438 | bits |= FbScrLeft(bits1, leftShift); |
| 439 | } |
| 440 | --dst; |
| 441 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & startmask)); |
| 442 | } |
| 443 | } |
| 444 | else { |
| 445 | if (srcX > dstX) |
| 446 | bits1 = READ(src++); |
| 447 | if (startmask) { |
| 448 | bits = FbScrLeft(bits1, leftShift); |
| 449 | bits1 = READ(src++); |
| 450 | bits |= FbScrRight(bits1, rightShift); |
| 451 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & startmask)); |
| 452 | dst++; |
| 453 | mask = FbNext24Pix(mask); |
| 454 | } |
| 455 | while (n--) { |
| 456 | bits = FbScrLeft(bits1, leftShift); |
| 457 | bits1 = READ(src++); |
| 458 | bits |= FbScrRight(bits1, rightShift); |
| 459 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask)); |
| 460 | dst++; |
| 461 | mask = FbNext24Pix(mask); |
| 462 | } |
| 463 | if (endmask) { |
| 464 | bits = FbScrLeft(bits1, leftShift); |
| 465 | if (FbScrLeft(endmask, rightShift)) { |
| 466 | bits1 = READ(src); |
| 467 | bits |= FbScrRight(bits1, rightShift); |
| 468 | } |
| 469 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), mask & endmask)); |
| 470 | } |
| 471 | } |
| 472 | } |
| 473 | #ifdef DEBUG_BLT24 |
| 474 | { |
| 475 | int firstx, lastx, x; |
| 476 | |
| 477 | firstx = origX; |
| 478 | if (firstx) |
| 479 | firstx--; |
| 480 | lastx = origX + width / 24 + 1; |
| 481 | for (x = firstx; x <= lastx; x++) |
| 482 | ErrorF("%06x ", getPixel(origDst, x)); |
| 483 | ErrorF("\n"); |
| 484 | while (origNlw--) |
| 485 | ErrorF("%08x ", *origLine++); |
| 486 | ErrorF("\n"); |
| 487 | } |
| 488 | #endif |
| 489 | } |
| 490 | |
| 491 | void |
| 492 | fbBlt24(FbBits * srcLine, |
| 493 | FbStride srcStride, |
| 494 | int srcX, |
| 495 | FbBits * dstLine, |
| 496 | FbStride dstStride, |
| 497 | int dstX, |
| 498 | int width, |
| 499 | int height, int alu, FbBits pm, Bool reverse, Bool upsidedown) |
| 500 | { |
| 501 | if (upsidedown) { |
| 502 | srcLine += (height - 1) * srcStride; |
| 503 | dstLine += (height - 1) * dstStride; |
| 504 | srcStride = -srcStride; |
| 505 | dstStride = -dstStride; |
| 506 | } |
| 507 | while (height--) { |
| 508 | fbBlt24Line(srcLine, srcX, dstLine, dstX, width, alu, pm, reverse); |
| 509 | srcLine += srcStride; |
| 510 | dstLine += dstStride; |
| 511 | } |
| 512 | #ifdef DEBUG_BLT24 |
| 513 | ErrorF("\n"); |
| 514 | #endif |
| 515 | } |
| 516 | |
| 517 | #if FB_SHIFT == FB_STIP_SHIFT + 1 |
| 518 | |
| 519 | /* |
| 520 | * Could be generalized to FB_SHIFT > FB_STIP_SHIFT + 1 by |
| 521 | * creating an ring of values stepped through for each line |
| 522 | */ |
| 523 | |
| 524 | void |
| 525 | fbBltOdd(FbBits * srcLine, |
| 526 | FbStride srcStrideEven, |
| 527 | FbStride srcStrideOdd, |
| 528 | int srcXEven, |
| 529 | int srcXOdd, |
| 530 | FbBits * dstLine, |
| 531 | FbStride dstStrideEven, |
| 532 | FbStride dstStrideOdd, |
| 533 | int dstXEven, |
| 534 | int dstXOdd, int width, int height, int alu, FbBits pm, int bpp) |
| 535 | { |
| 536 | FbBits *src; |
| 537 | int leftShiftEven, rightShiftEven; |
| 538 | FbBits startmaskEven, endmaskEven; |
| 539 | int nmiddleEven; |
| 540 | |
| 541 | FbBits *dst; |
| 542 | int leftShiftOdd, rightShiftOdd; |
| 543 | FbBits startmaskOdd, endmaskOdd; |
| 544 | int nmiddleOdd; |
| 545 | |
| 546 | int leftShift, rightShift; |
| 547 | FbBits startmask, endmask; |
| 548 | int nmiddle; |
| 549 | |
| 550 | int srcX, dstX; |
| 551 | |
| 552 | FbBits bits, bits1; |
| 553 | int n; |
| 554 | |
| 555 | Bool destInvarient; |
| 556 | Bool even; |
| 557 | |
| 558 | FbDeclareMergeRop(); |
| 559 | |
| 560 | FbInitializeMergeRop(alu, pm); |
| 561 | destInvarient = FbDestInvarientMergeRop(); |
| 562 | |
| 563 | srcLine += srcXEven >> FB_SHIFT; |
| 564 | dstLine += dstXEven >> FB_SHIFT; |
| 565 | srcXEven &= FB_MASK; |
| 566 | dstXEven &= FB_MASK; |
| 567 | srcXOdd &= FB_MASK; |
| 568 | dstXOdd &= FB_MASK; |
| 569 | |
| 570 | FbMaskBits(dstXEven, width, startmaskEven, nmiddleEven, endmaskEven); |
| 571 | FbMaskBits(dstXOdd, width, startmaskOdd, nmiddleOdd, endmaskOdd); |
| 572 | |
| 573 | even = TRUE; |
| 574 | InitializeShifts(srcXEven, dstXEven, leftShiftEven, rightShiftEven); |
| 575 | InitializeShifts(srcXOdd, dstXOdd, leftShiftOdd, rightShiftOdd); |
| 576 | while (height--) { |
| 577 | src = srcLine; |
| 578 | dst = dstLine; |
| 579 | if (even) { |
| 580 | srcX = srcXEven; |
| 581 | dstX = dstXEven; |
| 582 | startmask = startmaskEven; |
| 583 | endmask = endmaskEven; |
| 584 | nmiddle = nmiddleEven; |
| 585 | leftShift = leftShiftEven; |
| 586 | rightShift = rightShiftEven; |
| 587 | srcLine += srcStrideEven; |
| 588 | dstLine += dstStrideEven; |
| 589 | even = FALSE; |
| 590 | } |
| 591 | else { |
| 592 | srcX = srcXOdd; |
| 593 | dstX = dstXOdd; |
| 594 | startmask = startmaskOdd; |
| 595 | endmask = endmaskOdd; |
| 596 | nmiddle = nmiddleOdd; |
| 597 | leftShift = leftShiftOdd; |
| 598 | rightShift = rightShiftOdd; |
| 599 | srcLine += srcStrideOdd; |
| 600 | dstLine += dstStrideOdd; |
| 601 | even = TRUE; |
| 602 | } |
| 603 | if (srcX == dstX) { |
| 604 | if (startmask) { |
| 605 | bits = READ(src++); |
| 606 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), startmask)); |
| 607 | dst++; |
| 608 | } |
| 609 | n = nmiddle; |
| 610 | if (destInvarient) { |
| 611 | while (n--) { |
| 612 | bits = READ(src++); |
| 613 | WRITE(dst, FbDoDestInvarientMergeRop(bits)); |
| 614 | dst++; |
| 615 | } |
| 616 | } |
| 617 | else { |
| 618 | while (n--) { |
| 619 | bits = READ(src++); |
| 620 | WRITE(dst, FbDoMergeRop(bits, READ(dst))); |
| 621 | dst++; |
| 622 | } |
| 623 | } |
| 624 | if (endmask) { |
| 625 | bits = READ(src); |
| 626 | WRITE(dst, FbDoMaskMergeRop(bits, READ(dst), endmask)); |
| 627 | } |
| 628 | } |
| 629 | else { |
| 630 | bits = 0; |
| 631 | if (srcX > dstX) |
| 632 | bits = READ(src++); |
| 633 | if (startmask) { |
| 634 | bits1 = FbScrLeft(bits, leftShift); |
| 635 | bits = READ(src++); |
| 636 | bits1 |= FbScrRight(bits, rightShift); |
| 637 | WRITE(dst, FbDoMaskMergeRop(bits1, READ(dst), startmask)); |
| 638 | dst++; |
| 639 | } |
| 640 | n = nmiddle; |
| 641 | if (destInvarient) { |
| 642 | while (n--) { |
| 643 | bits1 = FbScrLeft(bits, leftShift); |
| 644 | bits = READ(src++); |
| 645 | bits1 |= FbScrRight(bits, rightShift); |
| 646 | WRITE(dst, FbDoDestInvarientMergeRop(bits1)); |
| 647 | dst++; |
| 648 | } |
| 649 | } |
| 650 | else { |
| 651 | while (n--) { |
| 652 | bits1 = FbScrLeft(bits, leftShift); |
| 653 | bits = READ(src++); |
| 654 | bits1 |= FbScrRight(bits, rightShift); |
| 655 | WRITE(dst, FbDoMergeRop(bits1, READ(dst))); |
| 656 | dst++; |
| 657 | } |
| 658 | } |
| 659 | if (endmask) { |
| 660 | bits1 = FbScrLeft(bits, leftShift); |
| 661 | if (FbScrLeft(endmask, rightShift)) { |
| 662 | bits = READ(src); |
| 663 | bits1 |= FbScrRight(bits, rightShift); |
| 664 | } |
| 665 | WRITE(dst, FbDoMaskMergeRop(bits1, READ(dst), endmask)); |
| 666 | } |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | void |
| 672 | fbBltOdd24(FbBits * srcLine, |
| 673 | FbStride srcStrideEven, |
| 674 | FbStride srcStrideOdd, |
| 675 | int srcXEven, |
| 676 | int srcXOdd, |
| 677 | FbBits * dstLine, |
| 678 | FbStride dstStrideEven, |
| 679 | FbStride dstStrideOdd, |
| 680 | int dstXEven, int dstXOdd, int width, int height, int alu, FbBits pm) |
| 681 | { |
| 682 | Bool even = TRUE; |
| 683 | |
| 684 | while (height--) { |
| 685 | if (even) { |
| 686 | fbBlt24Line(srcLine, srcXEven, dstLine, dstXEven, |
| 687 | width, alu, pm, FALSE); |
| 688 | srcLine += srcStrideEven; |
| 689 | dstLine += dstStrideEven; |
| 690 | even = FALSE; |
| 691 | } |
| 692 | else { |
| 693 | fbBlt24Line(srcLine, srcXOdd, dstLine, dstXOdd, |
| 694 | width, alu, pm, FALSE); |
| 695 | srcLine += srcStrideOdd; |
| 696 | dstLine += dstStrideOdd; |
| 697 | even = TRUE; |
| 698 | } |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | #endif |
| 703 | |
| 704 | #if FB_STIP_SHIFT != FB_SHIFT |
| 705 | void |
| 706 | fbSetBltOdd(FbStip * stip, |
| 707 | FbStride stipStride, |
| 708 | int srcX, |
| 709 | FbBits ** bits, |
| 710 | FbStride * strideEven, |
| 711 | FbStride * strideOdd, int *srcXEven, int *srcXOdd) |
| 712 | { |
| 713 | int srcAdjust; |
| 714 | int strideAdjust; |
| 715 | |
| 716 | /* |
| 717 | * bytes needed to align source |
| 718 | */ |
| 719 | srcAdjust = (((int) stip) & (FB_MASK >> 3)); |
| 720 | /* |
| 721 | * FbStip units needed to align stride |
| 722 | */ |
| 723 | strideAdjust = stipStride & (FB_MASK >> FB_STIP_SHIFT); |
| 724 | |
| 725 | *bits = (FbBits *) ((char *) stip - srcAdjust); |
| 726 | if (srcAdjust) { |
| 727 | *strideEven = FbStipStrideToBitsStride(stipStride + 1); |
| 728 | *strideOdd = FbStipStrideToBitsStride(stipStride); |
| 729 | |
| 730 | *srcXEven = srcX + (srcAdjust << 3); |
| 731 | *srcXOdd = srcX + (srcAdjust << 3) - (strideAdjust << FB_STIP_SHIFT); |
| 732 | } |
| 733 | else { |
| 734 | *strideEven = FbStipStrideToBitsStride(stipStride); |
| 735 | *strideOdd = FbStipStrideToBitsStride(stipStride + 1); |
| 736 | |
| 737 | *srcXEven = srcX; |
| 738 | *srcXOdd = srcX + (strideAdjust << FB_STIP_SHIFT); |
| 739 | } |
| 740 | } |
| 741 | #endif |
| 742 | |
| 743 | void |
| 744 | fbBltStip(FbStip * src, FbStride srcStride, /* in FbStip units, not FbBits units */ |
| 745 | int srcX, FbStip * dst, FbStride dstStride, /* in FbStip units, not FbBits units */ |
| 746 | int dstX, int width, int height, int alu, FbBits pm, int bpp) |
| 747 | { |
| 748 | #if FB_STIP_SHIFT != FB_SHIFT |
| 749 | if (FB_STIP_ODDSTRIDE(srcStride) || FB_STIP_ODDPTR(src) || |
| 750 | FB_STIP_ODDSTRIDE(dstStride) || FB_STIP_ODDPTR(dst)) { |
| 751 | FbStride srcStrideEven, srcStrideOdd; |
| 752 | FbStride dstStrideEven, dstStrideOdd; |
| 753 | int srcXEven, srcXOdd; |
| 754 | int dstXEven, dstXOdd; |
| 755 | FbBits *s, *d; |
| 756 | int sx, dx; |
| 757 | |
| 758 | src += srcX >> FB_STIP_SHIFT; |
| 759 | srcX &= FB_STIP_MASK; |
| 760 | dst += dstX >> FB_STIP_SHIFT; |
| 761 | dstX &= FB_STIP_MASK; |
| 762 | |
| 763 | fbSetBltOdd(src, srcStride, srcX, |
| 764 | &s, &srcStrideEven, &srcStrideOdd, &srcXEven, &srcXOdd); |
| 765 | |
| 766 | fbSetBltOdd(dst, dstStride, dstX, |
| 767 | &d, &dstStrideEven, &dstStrideOdd, &dstXEven, &dstXOdd); |
| 768 | |
| 769 | if (bpp == 24 && !FbCheck24Pix(pm)) { |
| 770 | fbBltOdd24(s, srcStrideEven, srcStrideOdd, |
| 771 | srcXEven, srcXOdd, |
| 772 | d, dstStrideEven, dstStrideOdd, |
| 773 | dstXEven, dstXOdd, width, height, alu, pm); |
| 774 | } |
| 775 | else { |
| 776 | fbBltOdd(s, srcStrideEven, srcStrideOdd, |
| 777 | srcXEven, srcXOdd, |
| 778 | d, dstStrideEven, dstStrideOdd, |
| 779 | dstXEven, dstXOdd, width, height, alu, pm, bpp); |
| 780 | } |
| 781 | } |
| 782 | else |
| 783 | #endif |
| 784 | { |
| 785 | fbBlt((FbBits *) src, FbStipStrideToBitsStride(srcStride), |
| 786 | srcX, |
| 787 | (FbBits *) dst, FbStipStrideToBitsStride(dstStride), |
| 788 | dstX, width, height, alu, pm, bpp, FALSE, FALSE); |
| 789 | } |
| 790 | } |