| 1 | /* |
| 2 | * Copyright © 2001 Keith Packard |
| 3 | * |
| 4 | * Partly based on code that is Copyright © The XFree86 Project Inc. |
| 5 | * |
| 6 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 7 | * documentation for any purpose is hereby granted without fee, provided that |
| 8 | * the above copyright notice appear in all copies and that both that |
| 9 | * copyright notice and this permission notice appear in supporting |
| 10 | * documentation, and that the name of Keith Packard not be used in |
| 11 | * advertising or publicity pertaining to distribution of the software without |
| 12 | * specific, written prior permission. Keith Packard makes no |
| 13 | * representations about the suitability of this software for any purpose. It |
| 14 | * is provided "as is" without express or implied warranty. |
| 15 | * |
| 16 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 18 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 22 | * PERFORMANCE OF THIS SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #ifdef HAVE_DIX_CONFIG_H |
| 26 | #include <dix-config.h> |
| 27 | #endif |
| 28 | |
| 29 | #include <stdlib.h> |
| 30 | |
| 31 | #include "exa_priv.h" |
| 32 | |
| 33 | #include "mipict.h" |
| 34 | |
| 35 | #if DEBUG_TRACE_FALL |
| 36 | static void |
| 37 | exaCompositeFallbackPictDesc(PicturePtr pict, char *string, int n) |
| 38 | { |
| 39 | char format[20]; |
| 40 | char size[20]; |
| 41 | char loc; |
| 42 | int temp; |
| 43 | |
| 44 | if (!pict) { |
| 45 | snprintf(string, n, "None"); |
| 46 | return; |
| 47 | } |
| 48 | |
| 49 | switch (pict->format) { |
| 50 | case PICT_a8r8g8b8: |
| 51 | snprintf(format, 20, "ARGB8888"); |
| 52 | break; |
| 53 | case PICT_x8r8g8b8: |
| 54 | snprintf(format, 20, "XRGB8888"); |
| 55 | break; |
| 56 | case PICT_b8g8r8a8: |
| 57 | snprintf(format, 20, "BGRA8888"); |
| 58 | break; |
| 59 | case PICT_b8g8r8x8: |
| 60 | snprintf(format, 20, "BGRX8888"); |
| 61 | break; |
| 62 | case PICT_r5g6b5: |
| 63 | snprintf(format, 20, "RGB565 "); |
| 64 | break; |
| 65 | case PICT_x1r5g5b5: |
| 66 | snprintf(format, 20, "RGB555 "); |
| 67 | break; |
| 68 | case PICT_a8: |
| 69 | snprintf(format, 20, "A8 "); |
| 70 | break; |
| 71 | case PICT_a1: |
| 72 | snprintf(format, 20, "A1 "); |
| 73 | break; |
| 74 | default: |
| 75 | snprintf(format, 20, "0x%x", (int) pict->format); |
| 76 | break; |
| 77 | } |
| 78 | |
| 79 | if (pict->pDrawable) { |
| 80 | loc = exaGetOffscreenPixmap(pict->pDrawable, &temp, &temp) ? 's' : 'm'; |
| 81 | |
| 82 | snprintf(size, 20, "%dx%d%s", pict->pDrawable->width, |
| 83 | pict->pDrawable->height, pict->repeat ? " R" : ""); |
| 84 | } |
| 85 | else { |
| 86 | loc = '-'; |
| 87 | |
| 88 | snprintf(size, 20, "%s", pict->repeat ? " R" : ""); |
| 89 | } |
| 90 | |
| 91 | snprintf(string, n, "%p:%c fmt %s (%s)", pict->pDrawable, loc, format, |
| 92 | size); |
| 93 | } |
| 94 | |
| 95 | static void |
| 96 | exaPrintCompositeFallback(CARD8 op, |
| 97 | PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst) |
| 98 | { |
| 99 | char sop[20]; |
| 100 | char srcdesc[40], maskdesc[40], dstdesc[40]; |
| 101 | |
| 102 | switch (op) { |
| 103 | case PictOpSrc: |
| 104 | snprintf(sop, sizeof(sop), "Src"); |
| 105 | break; |
| 106 | case PictOpOver: |
| 107 | snprintf(sop, sizeof(sop), "Over"); |
| 108 | break; |
| 109 | default: |
| 110 | snprintf(sop, sizeof(sop), "0x%x", (int) op); |
| 111 | break; |
| 112 | } |
| 113 | |
| 114 | exaCompositeFallbackPictDesc(pSrc, srcdesc, 40); |
| 115 | exaCompositeFallbackPictDesc(pMask, maskdesc, 40); |
| 116 | exaCompositeFallbackPictDesc(pDst, dstdesc, 40); |
| 117 | |
| 118 | ErrorF("Composite fallback: op %s, \n" |
| 119 | " src %s, \n" |
| 120 | " mask %s, \n" |
| 121 | " dst %s, \n", sop, srcdesc, maskdesc, dstdesc); |
| 122 | } |
| 123 | #endif /* DEBUG_TRACE_FALL */ |
| 124 | |
| 125 | Bool |
| 126 | exaOpReadsDestination(CARD8 op) |
| 127 | { |
| 128 | /* FALSE (does not read destination) is the list of ops in the protocol |
| 129 | * document with "0" in the "Fb" column and no "Ab" in the "Fa" column. |
| 130 | * That's just Clear and Src. ReduceCompositeOp() will already have |
| 131 | * converted con/disjoint clear/src to Clear or Src. |
| 132 | */ |
| 133 | switch (op) { |
| 134 | case PictOpClear: |
| 135 | case PictOpSrc: |
| 136 | return FALSE; |
| 137 | default: |
| 138 | return TRUE; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | static Bool |
| 143 | exaGetPixelFromRGBA(CARD32 *pixel, |
| 144 | CARD16 red, |
| 145 | CARD16 green, |
| 146 | CARD16 blue, CARD16 alpha, PictFormatPtr pFormat) |
| 147 | { |
| 148 | int rbits, bbits, gbits, abits; |
| 149 | int rshift, bshift, gshift, ashift; |
| 150 | |
| 151 | *pixel = 0; |
| 152 | |
| 153 | if (!PICT_FORMAT_COLOR(pFormat->format) && |
| 154 | PICT_FORMAT_TYPE(pFormat->format) != PICT_TYPE_A) |
| 155 | return FALSE; |
| 156 | |
| 157 | rbits = PICT_FORMAT_R(pFormat->format); |
| 158 | gbits = PICT_FORMAT_G(pFormat->format); |
| 159 | bbits = PICT_FORMAT_B(pFormat->format); |
| 160 | abits = PICT_FORMAT_A(pFormat->format); |
| 161 | |
| 162 | rshift = pFormat->direct.red; |
| 163 | gshift = pFormat->direct.green; |
| 164 | bshift = pFormat->direct.blue; |
| 165 | ashift = pFormat->direct.alpha; |
| 166 | |
| 167 | *pixel |= (blue >> (16 - bbits)) << bshift; |
| 168 | *pixel |= (red >> (16 - rbits)) << rshift; |
| 169 | *pixel |= (green >> (16 - gbits)) << gshift; |
| 170 | *pixel |= (alpha >> (16 - abits)) << ashift; |
| 171 | |
| 172 | return TRUE; |
| 173 | } |
| 174 | |
| 175 | static Bool |
| 176 | exaGetRGBAFromPixel(CARD32 pixel, |
| 177 | CARD16 *red, |
| 178 | CARD16 *green, |
| 179 | CARD16 *blue, |
| 180 | CARD16 *alpha, |
| 181 | PictFormatPtr pFormat, PictFormatShort format) |
| 182 | { |
| 183 | int rbits, bbits, gbits, abits; |
| 184 | int rshift, bshift, gshift, ashift; |
| 185 | |
| 186 | if (!PICT_FORMAT_COLOR(format) && PICT_FORMAT_TYPE(format) != PICT_TYPE_A) |
| 187 | return FALSE; |
| 188 | |
| 189 | rbits = PICT_FORMAT_R(format); |
| 190 | gbits = PICT_FORMAT_G(format); |
| 191 | bbits = PICT_FORMAT_B(format); |
| 192 | abits = PICT_FORMAT_A(format); |
| 193 | |
| 194 | if (pFormat) { |
| 195 | rshift = pFormat->direct.red; |
| 196 | gshift = pFormat->direct.green; |
| 197 | bshift = pFormat->direct.blue; |
| 198 | ashift = pFormat->direct.alpha; |
| 199 | } |
| 200 | else if (format == PICT_a8r8g8b8) { |
| 201 | rshift = 16; |
| 202 | gshift = 8; |
| 203 | bshift = 0; |
| 204 | ashift = 24; |
| 205 | } |
| 206 | else |
| 207 | FatalError("EXA bug: exaGetRGBAFromPixel() doesn't match " |
| 208 | "createSourcePicture()\n"); |
| 209 | |
| 210 | if (rbits) { |
| 211 | *red = ((pixel >> rshift) & ((1 << rbits) - 1)) << (16 - rbits); |
| 212 | while (rbits < 16) { |
| 213 | *red |= *red >> rbits; |
| 214 | rbits <<= 1; |
| 215 | } |
| 216 | |
| 217 | *green = ((pixel >> gshift) & ((1 << gbits) - 1)) << (16 - gbits); |
| 218 | while (gbits < 16) { |
| 219 | *green |= *green >> gbits; |
| 220 | gbits <<= 1; |
| 221 | } |
| 222 | |
| 223 | *blue = ((pixel >> bshift) & ((1 << bbits) - 1)) << (16 - bbits); |
| 224 | while (bbits < 16) { |
| 225 | *blue |= *blue >> bbits; |
| 226 | bbits <<= 1; |
| 227 | } |
| 228 | } |
| 229 | else { |
| 230 | *red = 0x0000; |
| 231 | *green = 0x0000; |
| 232 | *blue = 0x0000; |
| 233 | } |
| 234 | |
| 235 | if (abits) { |
| 236 | *alpha = ((pixel >> ashift) & ((1 << abits) - 1)) << (16 - abits); |
| 237 | while (abits < 16) { |
| 238 | *alpha |= *alpha >> abits; |
| 239 | abits <<= 1; |
| 240 | } |
| 241 | } |
| 242 | else |
| 243 | *alpha = 0xffff; |
| 244 | |
| 245 | return TRUE; |
| 246 | } |
| 247 | |
| 248 | static int |
| 249 | exaTryDriverSolidFill(PicturePtr pSrc, |
| 250 | PicturePtr pDst, |
| 251 | INT16 xSrc, |
| 252 | INT16 ySrc, |
| 253 | INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) |
| 254 | { |
| 255 | ExaScreenPriv(pDst->pDrawable->pScreen); |
| 256 | RegionRec region; |
| 257 | BoxPtr pbox; |
| 258 | int nbox; |
| 259 | int dst_off_x, dst_off_y; |
| 260 | PixmapPtr pSrcPix, pDstPix; |
| 261 | ExaPixmapPrivPtr pDstExaPix; |
| 262 | CARD32 pixel; |
| 263 | CARD16 red, green, blue, alpha; |
| 264 | |
| 265 | pDstPix = exaGetDrawablePixmap(pDst->pDrawable); |
| 266 | pDstExaPix = ExaGetPixmapPriv(pDstPix); |
| 267 | |
| 268 | /* Check whether the accelerator can use the destination pixmap. |
| 269 | */ |
| 270 | if (pDstExaPix->accel_blocked) { |
| 271 | return -1; |
| 272 | } |
| 273 | |
| 274 | xDst += pDst->pDrawable->x; |
| 275 | yDst += pDst->pDrawable->y; |
| 276 | if (pSrc->pDrawable) { |
| 277 | xSrc += pSrc->pDrawable->x; |
| 278 | ySrc += pSrc->pDrawable->y; |
| 279 | } |
| 280 | |
| 281 | if (!miComputeCompositeRegion(®ion, pSrc, NULL, pDst, |
| 282 | xSrc, ySrc, 0, 0, xDst, yDst, width, height)) |
| 283 | return 1; |
| 284 | |
| 285 | exaGetDrawableDeltas(pDst->pDrawable, pDstPix, &dst_off_x, &dst_off_y); |
| 286 | |
| 287 | RegionTranslate(®ion, dst_off_x, dst_off_y); |
| 288 | |
| 289 | if (pSrc->pDrawable) { |
| 290 | pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable); |
| 291 | pixel = exaGetPixmapFirstPixel(pSrcPix); |
| 292 | } |
| 293 | else |
| 294 | pixel = pSrc->pSourcePict->solidFill.color; |
| 295 | |
| 296 | if (!exaGetRGBAFromPixel(pixel, &red, &green, &blue, &alpha, |
| 297 | pSrc->pFormat, pSrc->format) || |
| 298 | !exaGetPixelFromRGBA(&pixel, red, green, blue, alpha, pDst->pFormat)) { |
| 299 | RegionUninit(®ion); |
| 300 | return -1; |
| 301 | } |
| 302 | |
| 303 | if (pExaScr->do_migration) { |
| 304 | ExaMigrationRec pixmaps[1]; |
| 305 | |
| 306 | pixmaps[0].as_dst = TRUE; |
| 307 | pixmaps[0].as_src = FALSE; |
| 308 | pixmaps[0].pPix = pDstPix; |
| 309 | pixmaps[0].pReg = ®ion; |
| 310 | exaDoMigration(pixmaps, 1, TRUE); |
| 311 | } |
| 312 | |
| 313 | if (!exaPixmapHasGpuCopy(pDstPix)) { |
| 314 | RegionUninit(®ion); |
| 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | if (!(*pExaScr->info->PrepareSolid) (pDstPix, GXcopy, 0xffffffff, pixel)) { |
| 319 | RegionUninit(®ion); |
| 320 | return -1; |
| 321 | } |
| 322 | |
| 323 | nbox = RegionNumRects(®ion); |
| 324 | pbox = RegionRects(®ion); |
| 325 | |
| 326 | while (nbox--) { |
| 327 | (*pExaScr->info->Solid) (pDstPix, pbox->x1, pbox->y1, pbox->x2, |
| 328 | pbox->y2); |
| 329 | pbox++; |
| 330 | } |
| 331 | |
| 332 | (*pExaScr->info->DoneSolid) (pDstPix); |
| 333 | exaMarkSync(pDst->pDrawable->pScreen); |
| 334 | |
| 335 | RegionUninit(®ion); |
| 336 | return 1; |
| 337 | } |
| 338 | |
| 339 | static int |
| 340 | exaTryDriverCompositeRects(CARD8 op, |
| 341 | PicturePtr pSrc, |
| 342 | PicturePtr pMask, |
| 343 | PicturePtr pDst, |
| 344 | int nrect, ExaCompositeRectPtr rects) |
| 345 | { |
| 346 | ExaScreenPriv(pDst->pDrawable->pScreen); |
| 347 | int src_off_x = 0, src_off_y = 0, mask_off_x = 0, mask_off_y = 0; |
| 348 | int dst_off_x, dst_off_y; |
| 349 | PixmapPtr pSrcPix = NULL, pMaskPix = NULL, pDstPix; |
| 350 | ExaPixmapPrivPtr pSrcExaPix = NULL, pMaskExaPix = NULL, pDstExaPix; |
| 351 | |
| 352 | if (!pExaScr->info->PrepareComposite) |
| 353 | return -1; |
| 354 | |
| 355 | if (pSrc->pDrawable) { |
| 356 | pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable); |
| 357 | pSrcExaPix = ExaGetPixmapPriv(pSrcPix); |
| 358 | } |
| 359 | |
| 360 | if (pMask && pMask->pDrawable) { |
| 361 | pMaskPix = exaGetDrawablePixmap(pMask->pDrawable); |
| 362 | pMaskExaPix = ExaGetPixmapPriv(pMaskPix); |
| 363 | } |
| 364 | |
| 365 | pDstPix = exaGetDrawablePixmap(pDst->pDrawable); |
| 366 | pDstExaPix = ExaGetPixmapPriv(pDstPix); |
| 367 | |
| 368 | /* Check whether the accelerator can use these pixmaps. |
| 369 | * FIXME: If it cannot, use temporary pixmaps so that the drawing |
| 370 | * happens within limits. |
| 371 | */ |
| 372 | if (pDstExaPix->accel_blocked || |
| 373 | (pSrcExaPix && pSrcExaPix->accel_blocked) || |
| 374 | (pMaskExaPix && pMaskExaPix->accel_blocked)) { |
| 375 | return -1; |
| 376 | } |
| 377 | |
| 378 | if (pExaScr->info->CheckComposite && |
| 379 | !(*pExaScr->info->CheckComposite) (op, pSrc, pMask, pDst)) { |
| 380 | return -1; |
| 381 | } |
| 382 | |
| 383 | if (pExaScr->do_migration) { |
| 384 | ExaMigrationRec pixmaps[3]; |
| 385 | int i = 0; |
| 386 | |
| 387 | pixmaps[i].as_dst = TRUE; |
| 388 | pixmaps[i].as_src = exaOpReadsDestination(op); |
| 389 | pixmaps[i].pPix = pDstPix; |
| 390 | pixmaps[i].pReg = NULL; |
| 391 | i++; |
| 392 | |
| 393 | if (pSrcPix) { |
| 394 | pixmaps[i].as_dst = FALSE; |
| 395 | pixmaps[i].as_src = TRUE; |
| 396 | pixmaps[i].pPix = pSrcPix; |
| 397 | pixmaps[i].pReg = NULL; |
| 398 | i++; |
| 399 | } |
| 400 | |
| 401 | if (pMaskPix) { |
| 402 | pixmaps[i].as_dst = FALSE; |
| 403 | pixmaps[i].as_src = TRUE; |
| 404 | pixmaps[i].pPix = pMaskPix; |
| 405 | pixmaps[i].pReg = NULL; |
| 406 | i++; |
| 407 | } |
| 408 | |
| 409 | exaDoMigration(pixmaps, i, TRUE); |
| 410 | } |
| 411 | |
| 412 | pDstPix = exaGetOffscreenPixmap(pDst->pDrawable, &dst_off_x, &dst_off_y); |
| 413 | if (!pDstPix) |
| 414 | return 0; |
| 415 | |
| 416 | if (pSrcPix) { |
| 417 | pSrcPix = |
| 418 | exaGetOffscreenPixmap(pSrc->pDrawable, &src_off_x, &src_off_y); |
| 419 | if (!pSrcPix) |
| 420 | return 0; |
| 421 | } |
| 422 | |
| 423 | if (pMaskPix) { |
| 424 | pMaskPix = |
| 425 | exaGetOffscreenPixmap(pMask->pDrawable, &mask_off_x, &mask_off_y); |
| 426 | if (!pMaskPix) |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | if (!(*pExaScr->info->PrepareComposite) (op, pSrc, pMask, pDst, pSrcPix, |
| 431 | pMaskPix, pDstPix)) |
| 432 | return -1; |
| 433 | |
| 434 | while (nrect--) { |
| 435 | INT16 xDst = rects->xDst + pDst->pDrawable->x; |
| 436 | INT16 yDst = rects->yDst + pDst->pDrawable->y; |
| 437 | INT16 xMask = rects->xMask; |
| 438 | INT16 yMask = rects->yMask; |
| 439 | INT16 xSrc = rects->xSrc; |
| 440 | INT16 ySrc = rects->ySrc; |
| 441 | RegionRec region; |
| 442 | BoxPtr pbox; |
| 443 | int nbox; |
| 444 | |
| 445 | if (pMaskPix) { |
| 446 | xMask += pMask->pDrawable->x; |
| 447 | yMask += pMask->pDrawable->y; |
| 448 | } |
| 449 | |
| 450 | if (pSrcPix) { |
| 451 | xSrc += pSrc->pDrawable->x; |
| 452 | ySrc += pSrc->pDrawable->y; |
| 453 | } |
| 454 | |
| 455 | if (!miComputeCompositeRegion(®ion, pSrc, pMask, pDst, |
| 456 | xSrc, ySrc, xMask, yMask, xDst, yDst, |
| 457 | rects->width, rects->height)) |
| 458 | goto next_rect; |
| 459 | |
| 460 | RegionTranslate(®ion, dst_off_x, dst_off_y); |
| 461 | |
| 462 | nbox = RegionNumRects(®ion); |
| 463 | pbox = RegionRects(®ion); |
| 464 | |
| 465 | xMask = xMask + mask_off_x - xDst - dst_off_x; |
| 466 | yMask = yMask + mask_off_y - yDst - dst_off_y; |
| 467 | xSrc = xSrc + src_off_x - xDst - dst_off_x; |
| 468 | ySrc = ySrc + src_off_y - yDst - dst_off_y; |
| 469 | |
| 470 | while (nbox--) { |
| 471 | (*pExaScr->info->Composite) (pDstPix, |
| 472 | pbox->x1 + xSrc, |
| 473 | pbox->y1 + ySrc, |
| 474 | pbox->x1 + xMask, |
| 475 | pbox->y1 + yMask, |
| 476 | pbox->x1, |
| 477 | pbox->y1, |
| 478 | pbox->x2 - pbox->x1, |
| 479 | pbox->y2 - pbox->y1); |
| 480 | pbox++; |
| 481 | } |
| 482 | |
| 483 | next_rect: |
| 484 | RegionUninit(®ion); |
| 485 | |
| 486 | rects++; |
| 487 | } |
| 488 | |
| 489 | (*pExaScr->info->DoneComposite) (pDstPix); |
| 490 | exaMarkSync(pDst->pDrawable->pScreen); |
| 491 | |
| 492 | return 1; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Copy a number of rectangles from source to destination in a single |
| 497 | * operation. This is specialized for glyph rendering: we don't have the |
| 498 | * special-case fallbacks found in exaComposite() - if the driver can support |
| 499 | * it, we use the driver functionality, otherwise we fall back straight to |
| 500 | * software. |
| 501 | */ |
| 502 | void |
| 503 | exaCompositeRects(CARD8 op, |
| 504 | PicturePtr pSrc, |
| 505 | PicturePtr pMask, |
| 506 | PicturePtr pDst, int nrect, ExaCompositeRectPtr rects) |
| 507 | { |
| 508 | ExaScreenPriv(pDst->pDrawable->pScreen); |
| 509 | int n; |
| 510 | ExaCompositeRectPtr r; |
| 511 | int ret; |
| 512 | |
| 513 | /* If we get a mask, that means we're rendering to the exaGlyphs |
| 514 | * destination directly, so the damage layer takes care of this. |
| 515 | */ |
| 516 | if (!pMask) { |
| 517 | RegionRec region; |
| 518 | int x1 = MAXSHORT; |
| 519 | int y1 = MAXSHORT; |
| 520 | int x2 = MINSHORT; |
| 521 | int y2 = MINSHORT; |
| 522 | BoxRec box; |
| 523 | |
| 524 | /* We have to manage the damage ourselves, since CompositeRects isn't |
| 525 | * something in the screen that can be managed by the damage extension, |
| 526 | * and EXA depends on damage to track what needs to be migrated between |
| 527 | * the gpu and the cpu. |
| 528 | */ |
| 529 | |
| 530 | /* Compute the overall extents of the composited region - we're making |
| 531 | * the assumption here that we are compositing a bunch of glyphs that |
| 532 | * cluster closely together and damaging each glyph individually would |
| 533 | * be a loss compared to damaging the bounding box. |
| 534 | */ |
| 535 | n = nrect; |
| 536 | r = rects; |
| 537 | while (n--) { |
| 538 | int rect_x2 = r->xDst + r->width; |
| 539 | int rect_y2 = r->yDst + r->height; |
| 540 | |
| 541 | if (r->xDst < x1) |
| 542 | x1 = r->xDst; |
| 543 | if (r->yDst < y1) |
| 544 | y1 = r->yDst; |
| 545 | if (rect_x2 > x2) |
| 546 | x2 = rect_x2; |
| 547 | if (rect_y2 > y2) |
| 548 | y2 = rect_y2; |
| 549 | |
| 550 | r++; |
| 551 | } |
| 552 | |
| 553 | if (x2 <= x1 || y2 <= y1) |
| 554 | return; |
| 555 | |
| 556 | box.x1 = x1; |
| 557 | box.x2 = x2 < MAXSHORT ? x2 : MAXSHORT; |
| 558 | box.y1 = y1; |
| 559 | box.y2 = y2 < MAXSHORT ? y2 : MAXSHORT; |
| 560 | |
| 561 | /* The pixmap migration code relies on pendingDamage indicating |
| 562 | * the bounds of the current rendering, so we need to force |
| 563 | * the actual damage into that region before we do anything, and |
| 564 | * (see use of DamagePendingRegion in exaCopyDirty) |
| 565 | */ |
| 566 | |
| 567 | RegionInit(®ion, &box, 1); |
| 568 | |
| 569 | DamageRegionAppend(pDst->pDrawable, ®ion); |
| 570 | |
| 571 | RegionUninit(®ion); |
| 572 | } |
| 573 | |
| 574 | /************************************************************/ |
| 575 | |
| 576 | ValidatePicture(pSrc); |
| 577 | if (pMask) |
| 578 | ValidatePicture(pMask); |
| 579 | ValidatePicture(pDst); |
| 580 | |
| 581 | ret = exaTryDriverCompositeRects(op, pSrc, pMask, pDst, nrect, rects); |
| 582 | |
| 583 | if (ret != 1) { |
| 584 | if (ret == -1 && op == PictOpOver && pMask && pMask->componentAlpha && |
| 585 | (!pExaScr->info->CheckComposite || |
| 586 | ((*pExaScr->info->CheckComposite) (PictOpOutReverse, pSrc, pMask, |
| 587 | pDst) && |
| 588 | (*pExaScr->info->CheckComposite) (PictOpAdd, pSrc, pMask, |
| 589 | pDst)))) { |
| 590 | ret = |
| 591 | exaTryDriverCompositeRects(PictOpOutReverse, pSrc, pMask, pDst, |
| 592 | nrect, rects); |
| 593 | if (ret == 1) { |
| 594 | op = PictOpAdd; |
| 595 | ret = exaTryDriverCompositeRects(op, pSrc, pMask, pDst, nrect, |
| 596 | rects); |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | if (ret != 1) { |
| 601 | n = nrect; |
| 602 | r = rects; |
| 603 | while (n--) { |
| 604 | ExaCheckComposite(op, pSrc, pMask, pDst, |
| 605 | r->xSrc, r->ySrc, |
| 606 | r->xMask, r->yMask, |
| 607 | r->xDst, r->yDst, r->width, r->height); |
| 608 | r++; |
| 609 | } |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | /************************************************************/ |
| 614 | |
| 615 | if (!pMask) { |
| 616 | /* Now we have to flush the damage out from pendingDamage => damage |
| 617 | * Calling DamageRegionProcessPending has that effect. |
| 618 | */ |
| 619 | |
| 620 | DamageRegionProcessPending(pDst->pDrawable); |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | static int |
| 625 | exaTryDriverComposite(CARD8 op, |
| 626 | PicturePtr pSrc, |
| 627 | PicturePtr pMask, |
| 628 | PicturePtr pDst, |
| 629 | INT16 xSrc, |
| 630 | INT16 ySrc, |
| 631 | INT16 xMask, |
| 632 | INT16 yMask, |
| 633 | INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) |
| 634 | { |
| 635 | ExaScreenPriv(pDst->pDrawable->pScreen); |
| 636 | RegionRec region; |
| 637 | BoxPtr pbox; |
| 638 | int nbox; |
| 639 | int src_off_x, src_off_y, mask_off_x, mask_off_y, dst_off_x, dst_off_y; |
| 640 | PixmapPtr pSrcPix = NULL, pMaskPix = NULL, pDstPix; |
| 641 | ExaPixmapPrivPtr pSrcExaPix = NULL, pMaskExaPix = NULL, pDstExaPix; |
| 642 | |
| 643 | if (pSrc->pDrawable) { |
| 644 | pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable); |
| 645 | pSrcExaPix = ExaGetPixmapPriv(pSrcPix); |
| 646 | } |
| 647 | |
| 648 | pDstPix = exaGetDrawablePixmap(pDst->pDrawable); |
| 649 | pDstExaPix = ExaGetPixmapPriv(pDstPix); |
| 650 | |
| 651 | if (pMask && pMask->pDrawable) { |
| 652 | pMaskPix = exaGetDrawablePixmap(pMask->pDrawable); |
| 653 | pMaskExaPix = ExaGetPixmapPriv(pMaskPix); |
| 654 | } |
| 655 | |
| 656 | /* Check whether the accelerator can use these pixmaps. |
| 657 | * FIXME: If it cannot, use temporary pixmaps so that the drawing |
| 658 | * happens within limits. |
| 659 | */ |
| 660 | if (pDstExaPix->accel_blocked || |
| 661 | (pSrcExaPix && pSrcExaPix->accel_blocked) || |
| 662 | (pMaskExaPix && (pMaskExaPix->accel_blocked))) { |
| 663 | return -1; |
| 664 | } |
| 665 | |
| 666 | xDst += pDst->pDrawable->x; |
| 667 | yDst += pDst->pDrawable->y; |
| 668 | |
| 669 | if (pMaskPix) { |
| 670 | xMask += pMask->pDrawable->x; |
| 671 | yMask += pMask->pDrawable->y; |
| 672 | } |
| 673 | |
| 674 | if (pSrcPix) { |
| 675 | xSrc += pSrc->pDrawable->x; |
| 676 | ySrc += pSrc->pDrawable->y; |
| 677 | } |
| 678 | |
| 679 | if (pExaScr->info->CheckComposite && |
| 680 | !(*pExaScr->info->CheckComposite) (op, pSrc, pMask, pDst)) { |
| 681 | return -1; |
| 682 | } |
| 683 | |
| 684 | if (!miComputeCompositeRegion(®ion, pSrc, pMask, pDst, |
| 685 | xSrc, ySrc, xMask, yMask, xDst, yDst, |
| 686 | width, height)) |
| 687 | return 1; |
| 688 | |
| 689 | exaGetDrawableDeltas(pDst->pDrawable, pDstPix, &dst_off_x, &dst_off_y); |
| 690 | |
| 691 | RegionTranslate(®ion, dst_off_x, dst_off_y); |
| 692 | |
| 693 | if (pExaScr->do_migration) { |
| 694 | ExaMigrationRec pixmaps[3]; |
| 695 | int i = 0; |
| 696 | |
| 697 | pixmaps[i].as_dst = TRUE; |
| 698 | pixmaps[i].as_src = exaOpReadsDestination(op); |
| 699 | pixmaps[i].pPix = pDstPix; |
| 700 | pixmaps[i].pReg = pixmaps[0].as_src ? NULL : ®ion; |
| 701 | i++; |
| 702 | |
| 703 | if (pSrcPix) { |
| 704 | pixmaps[i].as_dst = FALSE; |
| 705 | pixmaps[i].as_src = TRUE; |
| 706 | pixmaps[i].pPix = pSrcPix; |
| 707 | pixmaps[i].pReg = NULL; |
| 708 | i++; |
| 709 | } |
| 710 | |
| 711 | if (pMaskPix) { |
| 712 | pixmaps[i].as_dst = FALSE; |
| 713 | pixmaps[i].as_src = TRUE; |
| 714 | pixmaps[i].pPix = pMaskPix; |
| 715 | pixmaps[i].pReg = NULL; |
| 716 | i++; |
| 717 | } |
| 718 | |
| 719 | exaDoMigration(pixmaps, i, TRUE); |
| 720 | } |
| 721 | |
| 722 | if (pSrcPix) { |
| 723 | pSrcPix = |
| 724 | exaGetOffscreenPixmap(pSrc->pDrawable, &src_off_x, &src_off_y); |
| 725 | if (!pSrcPix) { |
| 726 | RegionUninit(®ion); |
| 727 | return 0; |
| 728 | } |
| 729 | } |
| 730 | |
| 731 | if (pMaskPix) { |
| 732 | pMaskPix = exaGetOffscreenPixmap(pMask->pDrawable, &mask_off_x, |
| 733 | &mask_off_y); |
| 734 | if (!pMaskPix) { |
| 735 | RegionUninit(®ion); |
| 736 | return 0; |
| 737 | } |
| 738 | } |
| 739 | |
| 740 | if (!exaPixmapHasGpuCopy(pDstPix)) { |
| 741 | RegionUninit(®ion); |
| 742 | return 0; |
| 743 | } |
| 744 | |
| 745 | if (!(*pExaScr->info->PrepareComposite) (op, pSrc, pMask, pDst, pSrcPix, |
| 746 | pMaskPix, pDstPix)) { |
| 747 | RegionUninit(®ion); |
| 748 | return -1; |
| 749 | } |
| 750 | |
| 751 | nbox = RegionNumRects(®ion); |
| 752 | pbox = RegionRects(®ion); |
| 753 | |
| 754 | xMask = xMask + mask_off_x - xDst - dst_off_x; |
| 755 | yMask = yMask + mask_off_y - yDst - dst_off_y; |
| 756 | |
| 757 | xSrc = xSrc + src_off_x - xDst - dst_off_x; |
| 758 | ySrc = ySrc + src_off_y - yDst - dst_off_y; |
| 759 | |
| 760 | while (nbox--) { |
| 761 | (*pExaScr->info->Composite) (pDstPix, |
| 762 | pbox->x1 + xSrc, |
| 763 | pbox->y1 + ySrc, |
| 764 | pbox->x1 + xMask, |
| 765 | pbox->y1 + yMask, |
| 766 | pbox->x1, |
| 767 | pbox->y1, |
| 768 | pbox->x2 - pbox->x1, pbox->y2 - pbox->y1); |
| 769 | pbox++; |
| 770 | } |
| 771 | (*pExaScr->info->DoneComposite) (pDstPix); |
| 772 | exaMarkSync(pDst->pDrawable->pScreen); |
| 773 | |
| 774 | RegionUninit(®ion); |
| 775 | return 1; |
| 776 | } |
| 777 | |
| 778 | /** |
| 779 | * exaTryMagicTwoPassCompositeHelper implements PictOpOver using two passes of |
| 780 | * simpler operations PictOpOutReverse and PictOpAdd. Mainly used for component |
| 781 | * alpha and limited 1-tmu cards. |
| 782 | * |
| 783 | * From http://anholt.livejournal.com/32058.html: |
| 784 | * |
| 785 | * The trouble is that component-alpha rendering requires two different sources |
| 786 | * for blending: one for the source value to the blender, which is the |
| 787 | * per-channel multiplication of source and mask, and one for the source alpha |
| 788 | * for multiplying with the destination channels, which is the multiplication |
| 789 | * of the source channels by the mask alpha. So the equation for Over is: |
| 790 | * |
| 791 | * dst.A = src.A * mask.A + (1 - (src.A * mask.A)) * dst.A |
| 792 | * dst.R = src.R * mask.R + (1 - (src.A * mask.R)) * dst.R |
| 793 | * dst.G = src.G * mask.G + (1 - (src.A * mask.G)) * dst.G |
| 794 | * dst.B = src.B * mask.B + (1 - (src.A * mask.B)) * dst.B |
| 795 | * |
| 796 | * But we can do some simpler operations, right? How about PictOpOutReverse, |
| 797 | * which has a source factor of 0 and dest factor of (1 - source alpha). We |
| 798 | * can get the source alpha value (srca.X = src.A * mask.X) out of the texture |
| 799 | * blenders pretty easily. So we can do a component-alpha OutReverse, which |
| 800 | * gets us: |
| 801 | * |
| 802 | * dst.A = 0 + (1 - (src.A * mask.A)) * dst.A |
| 803 | * dst.R = 0 + (1 - (src.A * mask.R)) * dst.R |
| 804 | * dst.G = 0 + (1 - (src.A * mask.G)) * dst.G |
| 805 | * dst.B = 0 + (1 - (src.A * mask.B)) * dst.B |
| 806 | * |
| 807 | * OK. And if an op doesn't use the source alpha value for the destination |
| 808 | * factor, then we can do the channel multiplication in the texture blenders |
| 809 | * to get the source value, and ignore the source alpha that we wouldn't use. |
| 810 | * We've supported this in the Radeon driver for a long time. An example would |
| 811 | * be PictOpAdd, which does: |
| 812 | * |
| 813 | * dst.A = src.A * mask.A + dst.A |
| 814 | * dst.R = src.R * mask.R + dst.R |
| 815 | * dst.G = src.G * mask.G + dst.G |
| 816 | * dst.B = src.B * mask.B + dst.B |
| 817 | * |
| 818 | * Hey, this looks good! If we do a PictOpOutReverse and then a PictOpAdd right |
| 819 | * after it, we get: |
| 820 | * |
| 821 | * dst.A = src.A * mask.A + ((1 - (src.A * mask.A)) * dst.A) |
| 822 | * dst.R = src.R * mask.R + ((1 - (src.A * mask.R)) * dst.R) |
| 823 | * dst.G = src.G * mask.G + ((1 - (src.A * mask.G)) * dst.G) |
| 824 | * dst.B = src.B * mask.B + ((1 - (src.A * mask.B)) * dst.B) |
| 825 | */ |
| 826 | |
| 827 | static int |
| 828 | exaTryMagicTwoPassCompositeHelper(CARD8 op, |
| 829 | PicturePtr pSrc, |
| 830 | PicturePtr pMask, |
| 831 | PicturePtr pDst, |
| 832 | INT16 xSrc, |
| 833 | INT16 ySrc, |
| 834 | INT16 xMask, |
| 835 | INT16 yMask, |
| 836 | INT16 xDst, |
| 837 | INT16 yDst, CARD16 width, CARD16 height) |
| 838 | { |
| 839 | ExaScreenPriv(pDst->pDrawable->pScreen); |
| 840 | |
| 841 | assert(op == PictOpOver); |
| 842 | |
| 843 | if (pExaScr->info->CheckComposite && |
| 844 | (!(*pExaScr->info->CheckComposite) (PictOpOutReverse, pSrc, pMask, |
| 845 | pDst) || |
| 846 | !(*pExaScr->info->CheckComposite) (PictOpAdd, pSrc, pMask, pDst))) { |
| 847 | return -1; |
| 848 | } |
| 849 | |
| 850 | /* Now, we think we should be able to accelerate this operation. First, |
| 851 | * composite the destination to be the destination times the source alpha |
| 852 | * factors. |
| 853 | */ |
| 854 | exaComposite(PictOpOutReverse, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, |
| 855 | xDst, yDst, width, height); |
| 856 | |
| 857 | /* Then, add in the source value times the destination alpha factors (1.0). |
| 858 | */ |
| 859 | exaComposite(PictOpAdd, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, |
| 860 | xDst, yDst, width, height); |
| 861 | |
| 862 | return 1; |
| 863 | } |
| 864 | |
| 865 | void |
| 866 | exaComposite(CARD8 op, |
| 867 | PicturePtr pSrc, |
| 868 | PicturePtr pMask, |
| 869 | PicturePtr pDst, |
| 870 | INT16 xSrc, |
| 871 | INT16 ySrc, |
| 872 | INT16 xMask, |
| 873 | INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) |
| 874 | { |
| 875 | ExaScreenPriv(pDst->pDrawable->pScreen); |
| 876 | int ret = -1; |
| 877 | Bool saveSrcRepeat = pSrc->repeat; |
| 878 | Bool saveMaskRepeat = pMask ? pMask->repeat : 0; |
| 879 | RegionRec region; |
| 880 | |
| 881 | if (pExaScr->swappedOut) |
| 882 | goto fallback; |
| 883 | |
| 884 | /* Remove repeat in source if useless */ |
| 885 | if (pSrc->pDrawable && pSrc->repeat && !pSrc->transform && xSrc >= 0 && |
| 886 | (xSrc + width) <= pSrc->pDrawable->width && ySrc >= 0 && |
| 887 | (ySrc + height) <= pSrc->pDrawable->height) |
| 888 | pSrc->repeat = 0; |
| 889 | |
| 890 | if (!pMask && !pSrc->alphaMap && !pDst->alphaMap && |
| 891 | (op == PictOpSrc || (op == PictOpOver && !PICT_FORMAT_A(pSrc->format)))) |
| 892 | { |
| 893 | if (pSrc->pDrawable ? |
| 894 | (pSrc->pDrawable->width == 1 && pSrc->pDrawable->height == 1 && |
| 895 | pSrc->repeat) : |
| 896 | (pSrc->pSourcePict->type == SourcePictTypeSolidFill)) { |
| 897 | ret = exaTryDriverSolidFill(pSrc, pDst, xSrc, ySrc, xDst, yDst, |
| 898 | width, height); |
| 899 | if (ret == 1) |
| 900 | goto done; |
| 901 | } |
| 902 | else if (pSrc->pDrawable && !pSrc->transform && |
| 903 | ((op == PictOpSrc && |
| 904 | (pSrc->format == pDst->format || |
| 905 | (PICT_FORMAT_COLOR(pDst->format) && |
| 906 | PICT_FORMAT_COLOR(pSrc->format) && |
| 907 | pDst->format == PICT_FORMAT(PICT_FORMAT_BPP(pSrc->format), |
| 908 | PICT_FORMAT_TYPE(pSrc->format), |
| 909 | 0, |
| 910 | PICT_FORMAT_R(pSrc->format), |
| 911 | PICT_FORMAT_G(pSrc->format), |
| 912 | PICT_FORMAT_B(pSrc->format))))) |
| 913 | || (op == PictOpOver && pSrc->format == pDst->format && |
| 914 | !PICT_FORMAT_A(pSrc->format)))) { |
| 915 | if (!pSrc->repeat && xSrc >= 0 && ySrc >= 0 && |
| 916 | (xSrc + width <= pSrc->pDrawable->width) && |
| 917 | (ySrc + height <= pSrc->pDrawable->height)) { |
| 918 | Bool ret; |
| 919 | |
| 920 | xDst += pDst->pDrawable->x; |
| 921 | yDst += pDst->pDrawable->y; |
| 922 | xSrc += pSrc->pDrawable->x; |
| 923 | ySrc += pSrc->pDrawable->y; |
| 924 | |
| 925 | if (!miComputeCompositeRegion(®ion, pSrc, pMask, pDst, |
| 926 | xSrc, ySrc, xMask, yMask, xDst, |
| 927 | yDst, width, height)) |
| 928 | goto done; |
| 929 | |
| 930 | ret = exaHWCopyNtoN(pSrc->pDrawable, pDst->pDrawable, NULL, |
| 931 | RegionRects(®ion), |
| 932 | RegionNumRects(®ion), xSrc - xDst, |
| 933 | ySrc - yDst, FALSE, FALSE); |
| 934 | RegionUninit(®ion); |
| 935 | |
| 936 | /* Reset values to their original values. */ |
| 937 | xDst -= pDst->pDrawable->x; |
| 938 | yDst -= pDst->pDrawable->y; |
| 939 | xSrc -= pSrc->pDrawable->x; |
| 940 | ySrc -= pSrc->pDrawable->y; |
| 941 | |
| 942 | if (!ret) |
| 943 | goto fallback; |
| 944 | |
| 945 | goto done; |
| 946 | } |
| 947 | |
| 948 | if (pSrc->repeat && pSrc->repeatType == RepeatNormal && |
| 949 | pSrc->pDrawable->type == DRAWABLE_PIXMAP) { |
| 950 | DDXPointRec patOrg; |
| 951 | |
| 952 | /* Let's see if the driver can do the repeat in one go */ |
| 953 | if (pExaScr->info->PrepareComposite && !pSrc->alphaMap && |
| 954 | !pDst->alphaMap) { |
| 955 | ret = exaTryDriverComposite(op, pSrc, pMask, pDst, xSrc, |
| 956 | ySrc, xMask, yMask, xDst, yDst, |
| 957 | width, height); |
| 958 | if (ret == 1) |
| 959 | goto done; |
| 960 | } |
| 961 | |
| 962 | /* Now see if we can use exaFillRegionTiled() */ |
| 963 | xDst += pDst->pDrawable->x; |
| 964 | yDst += pDst->pDrawable->y; |
| 965 | xSrc += pSrc->pDrawable->x; |
| 966 | ySrc += pSrc->pDrawable->y; |
| 967 | |
| 968 | if (!miComputeCompositeRegion(®ion, pSrc, pMask, pDst, xSrc, |
| 969 | ySrc, xMask, yMask, xDst, yDst, |
| 970 | width, height)) |
| 971 | goto done; |
| 972 | |
| 973 | /* pattern origin is the point in the destination drawable |
| 974 | * corresponding to (0,0) in the source */ |
| 975 | patOrg.x = xDst - xSrc; |
| 976 | patOrg.y = yDst - ySrc; |
| 977 | |
| 978 | ret = exaFillRegionTiled(pDst->pDrawable, ®ion, |
| 979 | (PixmapPtr) pSrc->pDrawable, |
| 980 | &patOrg, FB_ALLONES, GXcopy, CT_NONE); |
| 981 | |
| 982 | RegionUninit(®ion); |
| 983 | |
| 984 | if (ret) |
| 985 | goto done; |
| 986 | |
| 987 | /* Let's be correct and restore the variables to their original state. */ |
| 988 | xDst -= pDst->pDrawable->x; |
| 989 | yDst -= pDst->pDrawable->y; |
| 990 | xSrc -= pSrc->pDrawable->x; |
| 991 | ySrc -= pSrc->pDrawable->y; |
| 992 | } |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | /* Remove repeat in mask if useless */ |
| 997 | if (pMask && pMask->pDrawable && pMask->repeat && !pMask->transform && |
| 998 | xMask >= 0 && (xMask + width) <= pMask->pDrawable->width && |
| 999 | yMask >= 0 && (yMask + height) <= pMask->pDrawable->height) |
| 1000 | pMask->repeat = 0; |
| 1001 | |
| 1002 | if (pExaScr->info->PrepareComposite && |
| 1003 | !pSrc->alphaMap && (!pMask || !pMask->alphaMap) && !pDst->alphaMap) { |
| 1004 | Bool isSrcSolid; |
| 1005 | |
| 1006 | ret = exaTryDriverComposite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, |
| 1007 | yMask, xDst, yDst, width, height); |
| 1008 | if (ret == 1) |
| 1009 | goto done; |
| 1010 | |
| 1011 | /* For generic masks and solid src pictures, mach64 can do Over in two |
| 1012 | * passes, similar to the component-alpha case. |
| 1013 | */ |
| 1014 | isSrcSolid = pSrc->pDrawable ? |
| 1015 | (pSrc->pDrawable->width == 1 && pSrc->pDrawable->height == 1 && |
| 1016 | pSrc->repeat) : |
| 1017 | (pSrc->pSourcePict->type == SourcePictTypeSolidFill); |
| 1018 | |
| 1019 | /* If we couldn't do the Composite in a single pass, and it was a |
| 1020 | * component-alpha Over, see if we can do it in two passes with |
| 1021 | * an OutReverse and then an Add. |
| 1022 | */ |
| 1023 | if (ret == -1 && op == PictOpOver && pMask && |
| 1024 | (pMask->componentAlpha || isSrcSolid)) { |
| 1025 | ret = exaTryMagicTwoPassCompositeHelper(op, pSrc, pMask, pDst, |
| 1026 | xSrc, ySrc, |
| 1027 | xMask, yMask, xDst, yDst, |
| 1028 | width, height); |
| 1029 | if (ret == 1) |
| 1030 | goto done; |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | fallback: |
| 1035 | #if DEBUG_TRACE_FALL |
| 1036 | exaPrintCompositeFallback(op, pSrc, pMask, pDst); |
| 1037 | #endif |
| 1038 | |
| 1039 | ExaCheckComposite(op, pSrc, pMask, pDst, xSrc, ySrc, |
| 1040 | xMask, yMask, xDst, yDst, width, height); |
| 1041 | |
| 1042 | done: |
| 1043 | pSrc->repeat = saveSrcRepeat; |
| 1044 | if (pMask) |
| 1045 | pMask->repeat = saveMaskRepeat; |
| 1046 | } |
| 1047 | |
| 1048 | /** |
| 1049 | * Same as miCreateAlphaPicture, except it uses ExaCheckPolyFillRect instead |
| 1050 | * of PolyFillRect to initialize the pixmap after creating it, to prevent |
| 1051 | * the pixmap from being migrated. |
| 1052 | * |
| 1053 | * See the comments about exaTrapezoids and exaTriangles. |
| 1054 | */ |
| 1055 | static PicturePtr |
| 1056 | exaCreateAlphaPicture(ScreenPtr pScreen, |
| 1057 | PicturePtr pDst, |
| 1058 | PictFormatPtr pPictFormat, CARD16 width, CARD16 height) |
| 1059 | { |
| 1060 | PixmapPtr pPixmap; |
| 1061 | PicturePtr pPicture; |
| 1062 | GCPtr pGC; |
| 1063 | int error; |
| 1064 | xRectangle rect; |
| 1065 | |
| 1066 | if (width > 32767 || height > 32767) |
| 1067 | return 0; |
| 1068 | |
| 1069 | if (!pPictFormat) { |
| 1070 | if (pDst->polyEdge == PolyEdgeSharp) |
| 1071 | pPictFormat = PictureMatchFormat(pScreen, 1, PICT_a1); |
| 1072 | else |
| 1073 | pPictFormat = PictureMatchFormat(pScreen, 8, PICT_a8); |
| 1074 | if (!pPictFormat) |
| 1075 | return 0; |
| 1076 | } |
| 1077 | |
| 1078 | pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, |
| 1079 | pPictFormat->depth, 0); |
| 1080 | if (!pPixmap) |
| 1081 | return 0; |
| 1082 | pGC = GetScratchGC(pPixmap->drawable.depth, pScreen); |
| 1083 | if (!pGC) { |
| 1084 | (*pScreen->DestroyPixmap) (pPixmap); |
| 1085 | return 0; |
| 1086 | } |
| 1087 | ValidateGC(&pPixmap->drawable, pGC); |
| 1088 | rect.x = 0; |
| 1089 | rect.y = 0; |
| 1090 | rect.width = width; |
| 1091 | rect.height = height; |
| 1092 | ExaCheckPolyFillRect(&pPixmap->drawable, pGC, 1, &rect); |
| 1093 | exaPixmapDirty(pPixmap, 0, 0, width, height); |
| 1094 | FreeScratchGC(pGC); |
| 1095 | pPicture = CreatePicture(0, &pPixmap->drawable, pPictFormat, |
| 1096 | 0, 0, serverClient, &error); |
| 1097 | (*pScreen->DestroyPixmap) (pPixmap); |
| 1098 | return pPicture; |
| 1099 | } |
| 1100 | |
| 1101 | /** |
| 1102 | * exaTrapezoids is essentially a copy of miTrapezoids that uses |
| 1103 | * exaCreateAlphaPicture instead of miCreateAlphaPicture. |
| 1104 | * |
| 1105 | * The problem with miCreateAlphaPicture is that it calls PolyFillRect |
| 1106 | * to initialize the contents after creating the pixmap, which |
| 1107 | * causes the pixmap to be moved in for acceleration. The subsequent |
| 1108 | * call to RasterizeTrapezoid won't be accelerated however, which |
| 1109 | * forces the pixmap to be moved out again. |
| 1110 | * |
| 1111 | * exaCreateAlphaPicture avoids this roundtrip by using ExaCheckPolyFillRect |
| 1112 | * to initialize the contents. |
| 1113 | */ |
| 1114 | void |
| 1115 | exaTrapezoids(CARD8 op, PicturePtr pSrc, PicturePtr pDst, |
| 1116 | PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, |
| 1117 | int ntrap, xTrapezoid * traps) |
| 1118 | { |
| 1119 | ScreenPtr pScreen = pDst->pDrawable->pScreen; |
| 1120 | PictureScreenPtr ps = GetPictureScreen(pScreen); |
| 1121 | BoxRec bounds; |
| 1122 | |
| 1123 | if (maskFormat) { |
| 1124 | PicturePtr pPicture; |
| 1125 | INT16 xDst, yDst; |
| 1126 | INT16 xRel, yRel; |
| 1127 | |
| 1128 | miTrapezoidBounds(ntrap, traps, &bounds); |
| 1129 | |
| 1130 | if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) |
| 1131 | return; |
| 1132 | |
| 1133 | xDst = traps[0].left.p1.x >> 16; |
| 1134 | yDst = traps[0].left.p1.y >> 16; |
| 1135 | |
| 1136 | pPicture = exaCreateAlphaPicture(pScreen, pDst, maskFormat, |
| 1137 | bounds.x2 - bounds.x1, |
| 1138 | bounds.y2 - bounds.y1); |
| 1139 | if (!pPicture) |
| 1140 | return; |
| 1141 | |
| 1142 | exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST); |
| 1143 | for (; ntrap; ntrap--, traps++) |
| 1144 | (*ps->RasterizeTrapezoid) (pPicture, traps, -bounds.x1, -bounds.y1); |
| 1145 | exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST); |
| 1146 | |
| 1147 | xRel = bounds.x1 + xSrc - xDst; |
| 1148 | yRel = bounds.y1 + ySrc - yDst; |
| 1149 | CompositePicture(op, pSrc, pPicture, pDst, |
| 1150 | xRel, yRel, 0, 0, bounds.x1, bounds.y1, |
| 1151 | bounds.x2 - bounds.x1, bounds.y2 - bounds.y1); |
| 1152 | FreePicture(pPicture, 0); |
| 1153 | } |
| 1154 | else { |
| 1155 | if (pDst->polyEdge == PolyEdgeSharp) |
| 1156 | maskFormat = PictureMatchFormat(pScreen, 1, PICT_a1); |
| 1157 | else |
| 1158 | maskFormat = PictureMatchFormat(pScreen, 8, PICT_a8); |
| 1159 | for (; ntrap; ntrap--, traps++) |
| 1160 | exaTrapezoids(op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps); |
| 1161 | } |
| 1162 | } |
| 1163 | |
| 1164 | /** |
| 1165 | * exaTriangles is essentially a copy of miTriangles that uses |
| 1166 | * exaCreateAlphaPicture instead of miCreateAlphaPicture. |
| 1167 | * |
| 1168 | * The problem with miCreateAlphaPicture is that it calls PolyFillRect |
| 1169 | * to initialize the contents after creating the pixmap, which |
| 1170 | * causes the pixmap to be moved in for acceleration. The subsequent |
| 1171 | * call to AddTriangles won't be accelerated however, which forces the pixmap |
| 1172 | * to be moved out again. |
| 1173 | * |
| 1174 | * exaCreateAlphaPicture avoids this roundtrip by using ExaCheckPolyFillRect |
| 1175 | * to initialize the contents. |
| 1176 | */ |
| 1177 | void |
| 1178 | exaTriangles(CARD8 op, PicturePtr pSrc, PicturePtr pDst, |
| 1179 | PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, |
| 1180 | int ntri, xTriangle * tris) |
| 1181 | { |
| 1182 | ScreenPtr pScreen = pDst->pDrawable->pScreen; |
| 1183 | PictureScreenPtr ps = GetPictureScreen(pScreen); |
| 1184 | BoxRec bounds; |
| 1185 | |
| 1186 | if (maskFormat) { |
| 1187 | PicturePtr pPicture; |
| 1188 | INT16 xDst, yDst; |
| 1189 | INT16 xRel, yRel; |
| 1190 | |
| 1191 | miTriangleBounds(ntri, tris, &bounds); |
| 1192 | |
| 1193 | if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) |
| 1194 | return; |
| 1195 | |
| 1196 | xDst = tris[0].p1.x >> 16; |
| 1197 | yDst = tris[0].p1.y >> 16; |
| 1198 | |
| 1199 | pPicture = exaCreateAlphaPicture(pScreen, pDst, maskFormat, |
| 1200 | bounds.x2 - bounds.x1, |
| 1201 | bounds.y2 - bounds.y1); |
| 1202 | if (!pPicture) |
| 1203 | return; |
| 1204 | |
| 1205 | exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST); |
| 1206 | (*ps->AddTriangles) (pPicture, -bounds.x1, -bounds.y1, ntri, tris); |
| 1207 | exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST); |
| 1208 | |
| 1209 | xRel = bounds.x1 + xSrc - xDst; |
| 1210 | yRel = bounds.y1 + ySrc - yDst; |
| 1211 | CompositePicture(op, pSrc, pPicture, pDst, |
| 1212 | xRel, yRel, 0, 0, bounds.x1, bounds.y1, |
| 1213 | bounds.x2 - bounds.x1, bounds.y2 - bounds.y1); |
| 1214 | FreePicture(pPicture, 0); |
| 1215 | } |
| 1216 | else { |
| 1217 | if (pDst->polyEdge == PolyEdgeSharp) |
| 1218 | maskFormat = PictureMatchFormat(pScreen, 1, PICT_a1); |
| 1219 | else |
| 1220 | maskFormat = PictureMatchFormat(pScreen, 8, PICT_a8); |
| 1221 | |
| 1222 | for (; ntri; ntri--, tris++) |
| 1223 | exaTriangles(op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, tris); |
| 1224 | } |
| 1225 | } |