| 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 | /** @file |
| 26 | * This file covers the initialization and teardown of EXA, and has various |
| 27 | * functions not responsible for performing rendering, pixmap migration, or |
| 28 | * memory management. |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_DIX_CONFIG_H |
| 32 | #include <dix-config.h> |
| 33 | #endif |
| 34 | |
| 35 | #include <stdlib.h> |
| 36 | |
| 37 | #include "exa_priv.h" |
| 38 | #include "exa.h" |
| 39 | |
| 40 | DevPrivateKeyRec exaScreenPrivateKeyRec; |
| 41 | |
| 42 | #ifdef MITSHM |
| 43 | static ShmFuncs exaShmFuncs = { NULL, NULL }; |
| 44 | #endif |
| 45 | |
| 46 | /** |
| 47 | * exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of |
| 48 | * the beginning of the given pixmap. |
| 49 | * |
| 50 | * Note that drivers are free to, and often do, munge this offset as necessary |
| 51 | * for handing to the hardware -- for example, translating it into a different |
| 52 | * aperture. This function may need to be extended in the future if we grow |
| 53 | * support for having multiple card-accessible offscreen, such as an AGP memory |
| 54 | * pool alongside the framebuffer pool. |
| 55 | */ |
| 56 | unsigned long |
| 57 | exaGetPixmapOffset(PixmapPtr pPix) |
| 58 | { |
| 59 | ExaScreenPriv(pPix->drawable.pScreen); |
| 60 | ExaPixmapPriv(pPix); |
| 61 | |
| 62 | return (CARD8 *) pExaPixmap->fb_ptr - pExaScr->info->memoryBase; |
| 63 | } |
| 64 | |
| 65 | void * |
| 66 | exaGetPixmapDriverPrivate(PixmapPtr pPix) |
| 67 | { |
| 68 | ExaPixmapPriv(pPix); |
| 69 | |
| 70 | return pExaPixmap->driverPriv; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * exaGetPixmapPitch() returns the pitch (in bytes) of the given pixmap. |
| 75 | * |
| 76 | * This is a helper to make driver code more obvious, due to the rather obscure |
| 77 | * naming of the pitch field in the pixmap. |
| 78 | */ |
| 79 | unsigned long |
| 80 | exaGetPixmapPitch(PixmapPtr pPix) |
| 81 | { |
| 82 | return pPix->devKind; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * exaGetPixmapSize() returns the size in bytes of the given pixmap in video |
| 87 | * memory. Only valid when the pixmap is currently in framebuffer. |
| 88 | */ |
| 89 | unsigned long |
| 90 | exaGetPixmapSize(PixmapPtr pPix) |
| 91 | { |
| 92 | ExaPixmapPrivPtr pExaPixmap; |
| 93 | |
| 94 | pExaPixmap = ExaGetPixmapPriv(pPix); |
| 95 | if (pExaPixmap != NULL) |
| 96 | return pExaPixmap->fb_size; |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | /** |
| 101 | * exaGetDrawablePixmap() returns a backing pixmap for a given drawable. |
| 102 | * |
| 103 | * @param pDrawable the drawable being requested. |
| 104 | * |
| 105 | * This function returns the backing pixmap for a drawable, whether it is a |
| 106 | * redirected window, unredirected window, or already a pixmap. Note that |
| 107 | * coordinate translation is needed when drawing to the backing pixmap of a |
| 108 | * redirected window, and the translation coordinates are provided by calling |
| 109 | * exaGetOffscreenPixmap() on the drawable. |
| 110 | */ |
| 111 | PixmapPtr |
| 112 | exaGetDrawablePixmap(DrawablePtr pDrawable) |
| 113 | { |
| 114 | if (pDrawable->type == DRAWABLE_WINDOW) |
| 115 | return pDrawable->pScreen->GetWindowPixmap((WindowPtr) pDrawable); |
| 116 | else |
| 117 | return (PixmapPtr) pDrawable; |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Sets the offsets to add to coordinates to make them address the same bits in |
| 122 | * the backing drawable. These coordinates are nonzero only for redirected |
| 123 | * windows. |
| 124 | */ |
| 125 | void |
| 126 | exaGetDrawableDeltas(DrawablePtr pDrawable, PixmapPtr pPixmap, int *xp, int *yp) |
| 127 | { |
| 128 | #ifdef COMPOSITE |
| 129 | if (pDrawable->type == DRAWABLE_WINDOW) { |
| 130 | *xp = -pPixmap->screen_x; |
| 131 | *yp = -pPixmap->screen_y; |
| 132 | return; |
| 133 | } |
| 134 | #endif |
| 135 | |
| 136 | *xp = 0; |
| 137 | *yp = 0; |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * exaPixmapDirty() marks a pixmap as dirty, allowing for |
| 142 | * optimizations in pixmap migration when no changes have occurred. |
| 143 | */ |
| 144 | void |
| 145 | exaPixmapDirty(PixmapPtr pPix, int x1, int y1, int x2, int y2) |
| 146 | { |
| 147 | BoxRec box; |
| 148 | RegionRec region; |
| 149 | |
| 150 | box.x1 = max(x1, 0); |
| 151 | box.y1 = max(y1, 0); |
| 152 | box.x2 = min(x2, pPix->drawable.width); |
| 153 | box.y2 = min(y2, pPix->drawable.height); |
| 154 | |
| 155 | if (box.x1 >= box.x2 || box.y1 >= box.y2) |
| 156 | return; |
| 157 | |
| 158 | RegionInit(®ion, &box, 1); |
| 159 | DamageDamageRegion(&pPix->drawable, ®ion); |
| 160 | RegionUninit(®ion); |
| 161 | } |
| 162 | |
| 163 | static int |
| 164 | exaLog2(int val) |
| 165 | { |
| 166 | int bits; |
| 167 | |
| 168 | if (val <= 0) |
| 169 | return 0; |
| 170 | for (bits = 0; val != 0; bits++) |
| 171 | val >>= 1; |
| 172 | return bits - 1; |
| 173 | } |
| 174 | |
| 175 | void |
| 176 | exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap, |
| 177 | int w, int h, int bpp) |
| 178 | { |
| 179 | pExaPixmap->accel_blocked = 0; |
| 180 | |
| 181 | if (pExaScr->info->maxPitchPixels) { |
| 182 | int max_pitch = pExaScr->info->maxPitchPixels * bits_to_bytes(bpp); |
| 183 | |
| 184 | if (pExaPixmap->fb_pitch > max_pitch) |
| 185 | pExaPixmap->accel_blocked |= EXA_RANGE_PITCH; |
| 186 | } |
| 187 | |
| 188 | if (pExaScr->info->maxPitchBytes && |
| 189 | pExaPixmap->fb_pitch > pExaScr->info->maxPitchBytes) |
| 190 | pExaPixmap->accel_blocked |= EXA_RANGE_PITCH; |
| 191 | |
| 192 | if (w > pExaScr->info->maxX) |
| 193 | pExaPixmap->accel_blocked |= EXA_RANGE_WIDTH; |
| 194 | |
| 195 | if (h > pExaScr->info->maxY) |
| 196 | pExaPixmap->accel_blocked |= EXA_RANGE_HEIGHT; |
| 197 | } |
| 198 | |
| 199 | void |
| 200 | exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap, |
| 201 | int w, int h, int bpp) |
| 202 | { |
| 203 | if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1) |
| 204 | pExaPixmap->fb_pitch = bits_to_bytes((1 << (exaLog2(w - 1) + 1)) * bpp); |
| 205 | else |
| 206 | pExaPixmap->fb_pitch = bits_to_bytes(w * bpp); |
| 207 | |
| 208 | pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch, |
| 209 | pExaScr->info->pixmapPitchAlign); |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Returns TRUE if the pixmap is not movable. This is the case where it's a |
| 214 | * pixmap which has no private (almost always bad) or it's a scratch pixmap created by |
| 215 | * some X Server internal component (the score says it's pinned). |
| 216 | */ |
| 217 | Bool |
| 218 | exaPixmapIsPinned(PixmapPtr pPix) |
| 219 | { |
| 220 | ExaPixmapPriv(pPix); |
| 221 | |
| 222 | if (pExaPixmap == NULL) |
| 223 | EXA_FatalErrorDebugWithRet(("EXA bug: exaPixmapIsPinned was called on a non-exa pixmap.\n"), TRUE); |
| 224 | |
| 225 | return pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED; |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * exaPixmapHasGpuCopy() is used to determine if a pixmap is in offscreen |
| 230 | * memory, meaning that acceleration could probably be done to it, and that it |
| 231 | * will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it |
| 232 | * with the CPU. |
| 233 | * |
| 234 | * Note that except for UploadToScreen()/DownloadFromScreen() (which explicitly |
| 235 | * deal with moving pixmaps in and out of system memory), EXA will give drivers |
| 236 | * pixmaps as arguments for which exaPixmapHasGpuCopy() is TRUE. |
| 237 | * |
| 238 | * @return TRUE if the given drawable is in framebuffer memory. |
| 239 | */ |
| 240 | Bool |
| 241 | exaPixmapHasGpuCopy(PixmapPtr pPixmap) |
| 242 | { |
| 243 | ScreenPtr pScreen = pPixmap->drawable.pScreen; |
| 244 | |
| 245 | ExaScreenPriv(pScreen); |
| 246 | |
| 247 | if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) |
| 248 | return FALSE; |
| 249 | |
| 250 | return (*pExaScr->pixmap_has_gpu_copy) (pPixmap); |
| 251 | } |
| 252 | |
| 253 | /** |
| 254 | * exaDrawableIsOffscreen() is a convenience wrapper for exaPixmapHasGpuCopy(). |
| 255 | */ |
| 256 | Bool |
| 257 | exaDrawableIsOffscreen(DrawablePtr pDrawable) |
| 258 | { |
| 259 | return exaPixmapHasGpuCopy(exaGetDrawablePixmap(pDrawable)); |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * Returns the pixmap which backs a drawable, and the offsets to add to |
| 264 | * coordinates to make them address the same bits in the backing drawable. |
| 265 | */ |
| 266 | PixmapPtr |
| 267 | exaGetOffscreenPixmap(DrawablePtr pDrawable, int *xp, int *yp) |
| 268 | { |
| 269 | PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); |
| 270 | |
| 271 | exaGetDrawableDeltas(pDrawable, pPixmap, xp, yp); |
| 272 | |
| 273 | if (exaPixmapHasGpuCopy(pPixmap)) |
| 274 | return pPixmap; |
| 275 | else |
| 276 | return NULL; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Returns TRUE if the pixmap GPU copy is being accessed. |
| 281 | */ |
| 282 | Bool |
| 283 | ExaDoPrepareAccess(PixmapPtr pPixmap, int index) |
| 284 | { |
| 285 | ScreenPtr pScreen = pPixmap->drawable.pScreen; |
| 286 | |
| 287 | ExaScreenPriv(pScreen); |
| 288 | ExaPixmapPriv(pPixmap); |
| 289 | Bool has_gpu_copy, ret; |
| 290 | int i; |
| 291 | |
| 292 | if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) |
| 293 | return FALSE; |
| 294 | |
| 295 | if (pExaPixmap == NULL) |
| 296 | EXA_FatalErrorDebugWithRet(("EXA bug: ExaDoPrepareAccess was called on a non-exa pixmap.\n"), FALSE); |
| 297 | |
| 298 | /* Handle repeated / nested calls. */ |
| 299 | for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) { |
| 300 | if (pExaScr->access[i].pixmap == pPixmap) { |
| 301 | pExaScr->access[i].count++; |
| 302 | return pExaScr->access[i].retval; |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | /* If slot for this index is taken, find an empty slot */ |
| 307 | if (pExaScr->access[index].pixmap) { |
| 308 | for (index = EXA_NUM_PREPARE_INDICES - 1; index >= 0; index--) |
| 309 | if (!pExaScr->access[index].pixmap) |
| 310 | break; |
| 311 | } |
| 312 | |
| 313 | /* Access to this pixmap hasn't been prepared yet, so data pointer should be NULL. */ |
| 314 | if (pPixmap->devPrivate.ptr != NULL) { |
| 315 | EXA_FatalErrorDebug(("EXA bug: pPixmap->devPrivate.ptr was %p, but should have been NULL.\n", pPixmap->devPrivate.ptr)); |
| 316 | } |
| 317 | |
| 318 | has_gpu_copy = exaPixmapHasGpuCopy(pPixmap); |
| 319 | |
| 320 | if (has_gpu_copy && pExaPixmap->fb_ptr) { |
| 321 | pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr; |
| 322 | ret = TRUE; |
| 323 | } |
| 324 | else { |
| 325 | pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr; |
| 326 | ret = FALSE; |
| 327 | } |
| 328 | |
| 329 | /* Store so we can handle repeated / nested calls. */ |
| 330 | pExaScr->access[index].pixmap = pPixmap; |
| 331 | pExaScr->access[index].count = 1; |
| 332 | |
| 333 | if (!has_gpu_copy) |
| 334 | goto out; |
| 335 | |
| 336 | exaWaitSync(pScreen); |
| 337 | |
| 338 | if (pExaScr->info->PrepareAccess == NULL) |
| 339 | goto out; |
| 340 | |
| 341 | if (index >= EXA_PREPARE_AUX_DEST && |
| 342 | !(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) { |
| 343 | if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) |
| 344 | FatalError("Unsupported AUX indices used on a pinned pixmap.\n"); |
| 345 | exaMoveOutPixmap(pPixmap); |
| 346 | ret = FALSE; |
| 347 | goto out; |
| 348 | } |
| 349 | |
| 350 | if (!(*pExaScr->info->PrepareAccess) (pPixmap, index)) { |
| 351 | if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED && |
| 352 | !(pExaScr->info->flags & EXA_MIXED_PIXMAPS)) |
| 353 | FatalError("Driver failed PrepareAccess on a pinned pixmap.\n"); |
| 354 | exaMoveOutPixmap(pPixmap); |
| 355 | ret = FALSE; |
| 356 | goto out; |
| 357 | } |
| 358 | |
| 359 | ret = TRUE; |
| 360 | |
| 361 | out: |
| 362 | pExaScr->access[index].retval = ret; |
| 363 | return ret; |
| 364 | } |
| 365 | |
| 366 | /** |
| 367 | * exaPrepareAccess() is EXA's wrapper for the driver's PrepareAccess() handler. |
| 368 | * |
| 369 | * It deals with waiting for synchronization with the card, determining if |
| 370 | * PrepareAccess() is necessary, and working around PrepareAccess() failure. |
| 371 | */ |
| 372 | void |
| 373 | exaPrepareAccess(DrawablePtr pDrawable, int index) |
| 374 | { |
| 375 | PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); |
| 376 | |
| 377 | ExaScreenPriv(pDrawable->pScreen); |
| 378 | |
| 379 | if (pExaScr->prepare_access_reg) |
| 380 | pExaScr->prepare_access_reg(pPixmap, index, NULL); |
| 381 | else |
| 382 | (void) ExaDoPrepareAccess(pPixmap, index); |
| 383 | } |
| 384 | |
| 385 | /** |
| 386 | * exaFinishAccess() is EXA's wrapper for the driver's FinishAccess() handler. |
| 387 | * |
| 388 | * It deals with calling the driver's FinishAccess() only if necessary. |
| 389 | */ |
| 390 | void |
| 391 | exaFinishAccess(DrawablePtr pDrawable, int index) |
| 392 | { |
| 393 | ScreenPtr pScreen = pDrawable->pScreen; |
| 394 | |
| 395 | ExaScreenPriv(pScreen); |
| 396 | PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); |
| 397 | |
| 398 | ExaPixmapPriv(pPixmap); |
| 399 | int i; |
| 400 | |
| 401 | if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) |
| 402 | return; |
| 403 | |
| 404 | if (pExaPixmap == NULL) |
| 405 | EXA_FatalErrorDebugWithRet(("EXA bug: exaFinishAccesss was called on a non-exa pixmap.\n"),); |
| 406 | |
| 407 | /* Handle repeated / nested calls. */ |
| 408 | for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) { |
| 409 | if (pExaScr->access[i].pixmap == pPixmap) { |
| 410 | if (--pExaScr->access[i].count > 0) |
| 411 | return; |
| 412 | break; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | /* Catch unbalanced Prepare/FinishAccess calls. */ |
| 417 | if (i == EXA_NUM_PREPARE_INDICES) |
| 418 | EXA_FatalErrorDebugWithRet(("EXA bug: FinishAccess called without PrepareAccess for pixmap 0x%p.\n", pPixmap),); |
| 419 | |
| 420 | pExaScr->access[i].pixmap = NULL; |
| 421 | |
| 422 | /* We always hide the devPrivate.ptr. */ |
| 423 | pPixmap->devPrivate.ptr = NULL; |
| 424 | |
| 425 | /* Only call FinishAccess if PrepareAccess was called and succeeded. */ |
| 426 | if (!pExaScr->info->FinishAccess || !pExaScr->access[i].retval) |
| 427 | return; |
| 428 | |
| 429 | if (i >= EXA_PREPARE_AUX_DEST && |
| 430 | !(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) { |
| 431 | ErrorF("EXA bug: Trying to call driver FinishAccess hook with " |
| 432 | "unsupported index EXA_PREPARE_AUX*\n"); |
| 433 | return; |
| 434 | } |
| 435 | |
| 436 | (*pExaScr->info->FinishAccess) (pPixmap, i); |
| 437 | } |
| 438 | |
| 439 | /** |
| 440 | * Helper for things common to all schemes when a pixmap is destroyed |
| 441 | */ |
| 442 | void |
| 443 | exaDestroyPixmap(PixmapPtr pPixmap) |
| 444 | { |
| 445 | ExaScreenPriv(pPixmap->drawable.pScreen); |
| 446 | int i; |
| 447 | |
| 448 | /* Finish access if it was prepared (e.g. pixmap created during |
| 449 | * software fallback) |
| 450 | */ |
| 451 | for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) { |
| 452 | if (pExaScr->access[i].pixmap == pPixmap) { |
| 453 | exaFinishAccess(&pPixmap->drawable, i); |
| 454 | pExaScr->access[i].pixmap = NULL; |
| 455 | break; |
| 456 | } |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | /** |
| 461 | * Here begins EXA's GC code. |
| 462 | * Do not ever access the fb/mi layer directly. |
| 463 | */ |
| 464 | |
| 465 | static void |
| 466 | exaValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable); |
| 467 | |
| 468 | static void |
| 469 | exaDestroyGC(GCPtr pGC); |
| 470 | |
| 471 | static void |
| 472 | exaChangeGC(GCPtr pGC, unsigned long mask); |
| 473 | |
| 474 | static void |
| 475 | exaCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst); |
| 476 | |
| 477 | static void |
| 478 | exaChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects); |
| 479 | |
| 480 | static void |
| 481 | exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc); |
| 482 | |
| 483 | static void |
| 484 | exaDestroyClip(GCPtr pGC); |
| 485 | |
| 486 | const GCFuncs exaGCFuncs = { |
| 487 | exaValidateGC, |
| 488 | exaChangeGC, |
| 489 | exaCopyGC, |
| 490 | exaDestroyGC, |
| 491 | exaChangeClip, |
| 492 | exaDestroyClip, |
| 493 | exaCopyClip |
| 494 | }; |
| 495 | |
| 496 | static void |
| 497 | exaValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable) |
| 498 | { |
| 499 | /* fbValidateGC will do direct access to pixmaps if the tiling has changed. |
| 500 | * Do a few smart things so fbValidateGC can do it's work. |
| 501 | */ |
| 502 | |
| 503 | ScreenPtr pScreen = pDrawable->pScreen; |
| 504 | |
| 505 | ExaScreenPriv(pScreen); |
| 506 | ExaGCPriv(pGC); |
| 507 | PixmapPtr pTile = NULL; |
| 508 | Bool finish_current_tile = FALSE; |
| 509 | |
| 510 | /* Either of these conditions is enough to trigger access to a tile pixmap. */ |
| 511 | /* With pGC->tileIsPixel == 1, you run the risk of dereferencing an invalid tile pixmap pointer. */ |
| 512 | if (pGC->fillStyle == FillTiled || |
| 513 | ((changes & GCTile) && !pGC->tileIsPixel)) { |
| 514 | pTile = pGC->tile.pixmap; |
| 515 | |
| 516 | /* Sometimes tile pixmaps are swapped, you need access to: |
| 517 | * - The current tile if it depth matches. |
| 518 | * - Or the rotated tile if that one matches depth and !(changes & GCTile). |
| 519 | * - Or the current tile pixmap and a newly created one. |
| 520 | */ |
| 521 | if (pTile && pTile->drawable.depth != pDrawable->depth && |
| 522 | !(changes & GCTile)) { |
| 523 | PixmapPtr pRotatedTile = fbGetRotatedPixmap(pGC); |
| 524 | |
| 525 | if (pRotatedTile && |
| 526 | pRotatedTile->drawable.depth == pDrawable->depth) |
| 527 | pTile = pRotatedTile; |
| 528 | else |
| 529 | finish_current_tile = TRUE; /* CreatePixmap will be called. */ |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | if (pGC->stipple) |
| 534 | exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK); |
| 535 | if (pTile) |
| 536 | exaPrepareAccess(&pTile->drawable, EXA_PREPARE_SRC); |
| 537 | |
| 538 | /* Calls to Create/DestroyPixmap have to be identified as special. */ |
| 539 | pExaScr->fallback_counter++; |
| 540 | swap(pExaGC, pGC, funcs); |
| 541 | (*pGC->funcs->ValidateGC) (pGC, changes, pDrawable); |
| 542 | swap(pExaGC, pGC, funcs); |
| 543 | pExaScr->fallback_counter--; |
| 544 | |
| 545 | if (pTile) |
| 546 | exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC); |
| 547 | if (finish_current_tile && pGC->tile.pixmap) |
| 548 | exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_AUX_DEST); |
| 549 | if (pGC->stipple) |
| 550 | exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK); |
| 551 | } |
| 552 | |
| 553 | /* Is exaPrepareAccessGC() needed? */ |
| 554 | static void |
| 555 | exaDestroyGC(GCPtr pGC) |
| 556 | { |
| 557 | ExaGCPriv(pGC); |
| 558 | swap(pExaGC, pGC, funcs); |
| 559 | (*pGC->funcs->DestroyGC) (pGC); |
| 560 | swap(pExaGC, pGC, funcs); |
| 561 | } |
| 562 | |
| 563 | static void |
| 564 | exaChangeGC(GCPtr pGC, unsigned long mask) |
| 565 | { |
| 566 | ExaGCPriv(pGC); |
| 567 | swap(pExaGC, pGC, funcs); |
| 568 | (*pGC->funcs->ChangeGC) (pGC, mask); |
| 569 | swap(pExaGC, pGC, funcs); |
| 570 | } |
| 571 | |
| 572 | static void |
| 573 | exaCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst) |
| 574 | { |
| 575 | ExaGCPriv(pGCDst); |
| 576 | swap(pExaGC, pGCDst, funcs); |
| 577 | (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst); |
| 578 | swap(pExaGC, pGCDst, funcs); |
| 579 | } |
| 580 | |
| 581 | static void |
| 582 | exaChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects) |
| 583 | { |
| 584 | ExaGCPriv(pGC); |
| 585 | swap(pExaGC, pGC, funcs); |
| 586 | (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects); |
| 587 | swap(pExaGC, pGC, funcs); |
| 588 | } |
| 589 | |
| 590 | static void |
| 591 | exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc) |
| 592 | { |
| 593 | ExaGCPriv(pGCDst); |
| 594 | swap(pExaGC, pGCDst, funcs); |
| 595 | (*pGCDst->funcs->CopyClip) (pGCDst, pGCSrc); |
| 596 | swap(pExaGC, pGCDst, funcs); |
| 597 | } |
| 598 | |
| 599 | static void |
| 600 | exaDestroyClip(GCPtr pGC) |
| 601 | { |
| 602 | ExaGCPriv(pGC); |
| 603 | swap(pExaGC, pGC, funcs); |
| 604 | (*pGC->funcs->DestroyClip) (pGC); |
| 605 | swap(pExaGC, pGC, funcs); |
| 606 | } |
| 607 | |
| 608 | /** |
| 609 | * exaCreateGC makes a new GC and hooks up its funcs handler, so that |
| 610 | * exaValidateGC() will get called. |
| 611 | */ |
| 612 | static int |
| 613 | exaCreateGC(GCPtr pGC) |
| 614 | { |
| 615 | ScreenPtr pScreen = pGC->pScreen; |
| 616 | |
| 617 | ExaScreenPriv(pScreen); |
| 618 | ExaGCPriv(pGC); |
| 619 | Bool ret; |
| 620 | |
| 621 | swap(pExaScr, pScreen, CreateGC); |
| 622 | if ((ret = (*pScreen->CreateGC) (pGC))) { |
| 623 | wrap(pExaGC, pGC, funcs, (GCFuncs *) &exaGCFuncs); |
| 624 | wrap(pExaGC, pGC, ops, (GCOps *) &exaOps); |
| 625 | } |
| 626 | swap(pExaScr, pScreen, CreateGC); |
| 627 | |
| 628 | return ret; |
| 629 | } |
| 630 | |
| 631 | static Bool |
| 632 | exaChangeWindowAttributes(WindowPtr pWin, unsigned long mask) |
| 633 | { |
| 634 | Bool ret; |
| 635 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 636 | |
| 637 | ExaScreenPriv(pScreen); |
| 638 | |
| 639 | if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap) |
| 640 | exaPrepareAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC); |
| 641 | |
| 642 | if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE) |
| 643 | exaPrepareAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK); |
| 644 | |
| 645 | pExaScr->fallback_counter++; |
| 646 | swap(pExaScr, pScreen, ChangeWindowAttributes); |
| 647 | ret = pScreen->ChangeWindowAttributes(pWin, mask); |
| 648 | swap(pExaScr, pScreen, ChangeWindowAttributes); |
| 649 | pExaScr->fallback_counter--; |
| 650 | |
| 651 | if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap) |
| 652 | exaFinishAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC); |
| 653 | if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE) |
| 654 | exaFinishAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK); |
| 655 | |
| 656 | return ret; |
| 657 | } |
| 658 | |
| 659 | static RegionPtr |
| 660 | exaBitmapToRegion(PixmapPtr pPix) |
| 661 | { |
| 662 | RegionPtr ret; |
| 663 | ScreenPtr pScreen = pPix->drawable.pScreen; |
| 664 | |
| 665 | ExaScreenPriv(pScreen); |
| 666 | |
| 667 | exaPrepareAccess(&pPix->drawable, EXA_PREPARE_SRC); |
| 668 | swap(pExaScr, pScreen, BitmapToRegion); |
| 669 | ret = (*pScreen->BitmapToRegion) (pPix); |
| 670 | swap(pExaScr, pScreen, BitmapToRegion); |
| 671 | exaFinishAccess(&pPix->drawable, EXA_PREPARE_SRC); |
| 672 | |
| 673 | return ret; |
| 674 | } |
| 675 | |
| 676 | static Bool |
| 677 | exaCreateScreenResources(ScreenPtr pScreen) |
| 678 | { |
| 679 | ExaScreenPriv(pScreen); |
| 680 | PixmapPtr pScreenPixmap; |
| 681 | Bool b; |
| 682 | |
| 683 | swap(pExaScr, pScreen, CreateScreenResources); |
| 684 | b = pScreen->CreateScreenResources(pScreen); |
| 685 | swap(pExaScr, pScreen, CreateScreenResources); |
| 686 | |
| 687 | if (!b) |
| 688 | return FALSE; |
| 689 | |
| 690 | pScreenPixmap = pScreen->GetScreenPixmap(pScreen); |
| 691 | |
| 692 | if (pScreenPixmap) { |
| 693 | ExaPixmapPriv(pScreenPixmap); |
| 694 | |
| 695 | exaSetAccelBlock(pExaScr, pExaPixmap, |
| 696 | pScreenPixmap->drawable.width, |
| 697 | pScreenPixmap->drawable.height, |
| 698 | pScreenPixmap->drawable.bitsPerPixel); |
| 699 | } |
| 700 | |
| 701 | return TRUE; |
| 702 | } |
| 703 | |
| 704 | static void |
| 705 | ExaBlockHandler(ScreenPtr pScreen, pointer pTimeout, |
| 706 | pointer pReadmask) |
| 707 | { |
| 708 | ExaScreenPriv(pScreen); |
| 709 | |
| 710 | /* Move any deferred results from a software fallback to the driver pixmap */ |
| 711 | if (pExaScr->deferred_mixed_pixmap) |
| 712 | exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap); |
| 713 | |
| 714 | unwrap(pExaScr, pScreen, BlockHandler); |
| 715 | (*pScreen->BlockHandler) (pScreen, pTimeout, pReadmask); |
| 716 | wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler); |
| 717 | |
| 718 | /* The rest only applies to classic EXA */ |
| 719 | if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) |
| 720 | return; |
| 721 | |
| 722 | /* Try and keep the offscreen memory area tidy every now and then (at most |
| 723 | * once per second) when the server has been idle for at least 100ms. |
| 724 | */ |
| 725 | if (pExaScr->numOffscreenAvailable > 1) { |
| 726 | CARD32 now = GetTimeInMillis(); |
| 727 | |
| 728 | pExaScr->nextDefragment = now + |
| 729 | max(100, (INT32) (pExaScr->lastDefragment + 1000 - now)); |
| 730 | AdjustWaitForDelay(pTimeout, pExaScr->nextDefragment - now); |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | static void |
| 735 | ExaWakeupHandler(ScreenPtr pScreen, unsigned long result, |
| 736 | pointer pReadmask) |
| 737 | { |
| 738 | ExaScreenPriv(pScreen); |
| 739 | |
| 740 | unwrap(pExaScr, pScreen, WakeupHandler); |
| 741 | (*pScreen->WakeupHandler) (pScreen, result, pReadmask); |
| 742 | wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler); |
| 743 | |
| 744 | if (result == 0 && pExaScr->numOffscreenAvailable > 1) { |
| 745 | CARD32 now = GetTimeInMillis(); |
| 746 | |
| 747 | if ((int) (now - pExaScr->nextDefragment) > 0) { |
| 748 | ExaOffscreenDefragment(pScreen); |
| 749 | pExaScr->lastDefragment = now; |
| 750 | } |
| 751 | } |
| 752 | } |
| 753 | |
| 754 | /** |
| 755 | * exaCloseScreen() unwraps its wrapped screen functions and tears down EXA's |
| 756 | * screen private, before calling down to the next CloseSccreen. |
| 757 | */ |
| 758 | static Bool |
| 759 | exaCloseScreen(ScreenPtr pScreen) |
| 760 | { |
| 761 | ExaScreenPriv(pScreen); |
| 762 | PictureScreenPtr ps = GetPictureScreenIfSet(pScreen); |
| 763 | |
| 764 | if (ps->Glyphs == exaGlyphs) |
| 765 | exaGlyphsFini(pScreen); |
| 766 | |
| 767 | if (pScreen->BlockHandler == ExaBlockHandler) |
| 768 | unwrap(pExaScr, pScreen, BlockHandler); |
| 769 | if (pScreen->WakeupHandler == ExaWakeupHandler) |
| 770 | unwrap(pExaScr, pScreen, WakeupHandler); |
| 771 | unwrap(pExaScr, pScreen, CreateGC); |
| 772 | unwrap(pExaScr, pScreen, CloseScreen); |
| 773 | unwrap(pExaScr, pScreen, GetImage); |
| 774 | unwrap(pExaScr, pScreen, GetSpans); |
| 775 | if (pExaScr->SavedCreatePixmap) |
| 776 | unwrap(pExaScr, pScreen, CreatePixmap); |
| 777 | if (pExaScr->SavedDestroyPixmap) |
| 778 | unwrap(pExaScr, pScreen, DestroyPixmap); |
| 779 | if (pExaScr->SavedModifyPixmapHeader) |
| 780 | unwrap(pExaScr, pScreen, ModifyPixmapHeader); |
| 781 | unwrap(pExaScr, pScreen, CopyWindow); |
| 782 | unwrap(pExaScr, pScreen, ChangeWindowAttributes); |
| 783 | unwrap(pExaScr, pScreen, BitmapToRegion); |
| 784 | unwrap(pExaScr, pScreen, CreateScreenResources); |
| 785 | if (pExaScr->SavedSharePixmapBacking) |
| 786 | unwrap(pExaScr, pScreen, SharePixmapBacking); |
| 787 | if (pExaScr->SavedSetSharedPixmapBacking) |
| 788 | unwrap(pExaScr, pScreen, SetSharedPixmapBacking); |
| 789 | unwrap(pExaScr, ps, Composite); |
| 790 | if (pExaScr->SavedGlyphs) |
| 791 | unwrap(pExaScr, ps, Glyphs); |
| 792 | unwrap(pExaScr, ps, Trapezoids); |
| 793 | unwrap(pExaScr, ps, Triangles); |
| 794 | unwrap(pExaScr, ps, AddTraps); |
| 795 | |
| 796 | free(pExaScr); |
| 797 | |
| 798 | return (*pScreen->CloseScreen) (pScreen); |
| 799 | } |
| 800 | |
| 801 | /** |
| 802 | * This function allocates a driver structure for EXA drivers to fill in. By |
| 803 | * having EXA allocate the structure, the driver structure can be extended |
| 804 | * without breaking ABI between EXA and the drivers. The driver's |
| 805 | * responsibility is to check beforehand that the EXA module has a matching |
| 806 | * major number and sufficient minor. Drivers are responsible for freeing the |
| 807 | * driver structure using free(). |
| 808 | * |
| 809 | * @return a newly allocated, zero-filled driver structure |
| 810 | */ |
| 811 | ExaDriverPtr |
| 812 | exaDriverAlloc(void) |
| 813 | { |
| 814 | return calloc(1, sizeof(ExaDriverRec)); |
| 815 | } |
| 816 | |
| 817 | /** |
| 818 | * @param pScreen screen being initialized |
| 819 | * @param pScreenInfo EXA driver record |
| 820 | * |
| 821 | * exaDriverInit sets up EXA given a driver record filled in by the driver. |
| 822 | * pScreenInfo should have been allocated by exaDriverAlloc(). See the |
| 823 | * comments in _ExaDriver for what must be filled in and what is optional. |
| 824 | * |
| 825 | * @return TRUE if EXA was successfully initialized. |
| 826 | */ |
| 827 | Bool |
| 828 | exaDriverInit(ScreenPtr pScreen, ExaDriverPtr pScreenInfo) |
| 829 | { |
| 830 | ExaScreenPrivPtr pExaScr; |
| 831 | PictureScreenPtr ps; |
| 832 | |
| 833 | if (!pScreenInfo) |
| 834 | return FALSE; |
| 835 | |
| 836 | if (pScreenInfo->exa_major != EXA_VERSION_MAJOR || |
| 837 | pScreenInfo->exa_minor > EXA_VERSION_MINOR) { |
| 838 | LogMessage(X_ERROR, "EXA(%d): driver's EXA version requirements " |
| 839 | "(%d.%d) are incompatible with EXA version (%d.%d)\n", |
| 840 | pScreen->myNum, |
| 841 | pScreenInfo->exa_major, pScreenInfo->exa_minor, |
| 842 | EXA_VERSION_MAJOR, EXA_VERSION_MINOR); |
| 843 | return FALSE; |
| 844 | } |
| 845 | |
| 846 | if (!pScreenInfo->CreatePixmap && !pScreenInfo->CreatePixmap2) { |
| 847 | if (!pScreenInfo->memoryBase) { |
| 848 | LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memoryBase " |
| 849 | "must be non-zero\n", pScreen->myNum); |
| 850 | return FALSE; |
| 851 | } |
| 852 | |
| 853 | if (!pScreenInfo->memorySize) { |
| 854 | LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memorySize must be " |
| 855 | "non-zero\n", pScreen->myNum); |
| 856 | return FALSE; |
| 857 | } |
| 858 | |
| 859 | if (pScreenInfo->offScreenBase > pScreenInfo->memorySize) { |
| 860 | LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::offScreenBase must " |
| 861 | "be <= ExaDriverRec::memorySize\n", pScreen->myNum); |
| 862 | return FALSE; |
| 863 | } |
| 864 | } |
| 865 | |
| 866 | if (!pScreenInfo->PrepareSolid) { |
| 867 | LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareSolid must be " |
| 868 | "non-NULL\n", pScreen->myNum); |
| 869 | return FALSE; |
| 870 | } |
| 871 | |
| 872 | if (!pScreenInfo->PrepareCopy) { |
| 873 | LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareCopy must be " |
| 874 | "non-NULL\n", pScreen->myNum); |
| 875 | return FALSE; |
| 876 | } |
| 877 | |
| 878 | if (!pScreenInfo->WaitMarker) { |
| 879 | LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::WaitMarker must be " |
| 880 | "non-NULL\n", pScreen->myNum); |
| 881 | return FALSE; |
| 882 | } |
| 883 | |
| 884 | /* If the driver doesn't set any max pitch values, we'll just assume |
| 885 | * that there's a limitation by pixels, and that it's the same as |
| 886 | * maxX. |
| 887 | * |
| 888 | * We want maxPitchPixels or maxPitchBytes to be set so we can check |
| 889 | * pixmaps against the max pitch in exaCreatePixmap() -- it matters |
| 890 | * whether a pixmap is rejected because of its pitch or |
| 891 | * because of its width. |
| 892 | */ |
| 893 | if (!pScreenInfo->maxPitchPixels && !pScreenInfo->maxPitchBytes) { |
| 894 | pScreenInfo->maxPitchPixels = pScreenInfo->maxX; |
| 895 | } |
| 896 | |
| 897 | ps = GetPictureScreenIfSet(pScreen); |
| 898 | |
| 899 | if (!dixRegisterPrivateKey(&exaScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) { |
| 900 | LogMessage(X_WARNING, "EXA(%d): Failed to register screen private\n", |
| 901 | pScreen->myNum); |
| 902 | return FALSE; |
| 903 | } |
| 904 | |
| 905 | pExaScr = calloc(sizeof(ExaScreenPrivRec), 1); |
| 906 | if (!pExaScr) { |
| 907 | LogMessage(X_WARNING, "EXA(%d): Failed to allocate screen private\n", |
| 908 | pScreen->myNum); |
| 909 | return FALSE; |
| 910 | } |
| 911 | |
| 912 | pExaScr->info = pScreenInfo; |
| 913 | |
| 914 | dixSetPrivate(&pScreen->devPrivates, exaScreenPrivateKey, pExaScr); |
| 915 | |
| 916 | pExaScr->migration = ExaMigrationAlways; |
| 917 | |
| 918 | exaDDXDriverInit(pScreen); |
| 919 | |
| 920 | if (!dixRegisterScreenSpecificPrivateKey |
| 921 | (pScreen, &pExaScr->gcPrivateKeyRec, PRIVATE_GC, sizeof(ExaGCPrivRec))) { |
| 922 | LogMessage(X_WARNING, "EXA(%d): Failed to allocate GC private\n", |
| 923 | pScreen->myNum); |
| 924 | return FALSE; |
| 925 | } |
| 926 | |
| 927 | /* |
| 928 | * Replace various fb screen functions |
| 929 | */ |
| 930 | if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) && |
| 931 | (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS) || |
| 932 | (pExaScr->info->flags & EXA_MIXED_PIXMAPS))) |
| 933 | wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler); |
| 934 | if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) && |
| 935 | !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) |
| 936 | wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler); |
| 937 | wrap(pExaScr, pScreen, CreateGC, exaCreateGC); |
| 938 | wrap(pExaScr, pScreen, CloseScreen, exaCloseScreen); |
| 939 | wrap(pExaScr, pScreen, GetImage, exaGetImage); |
| 940 | wrap(pExaScr, pScreen, GetSpans, ExaCheckGetSpans); |
| 941 | wrap(pExaScr, pScreen, CopyWindow, exaCopyWindow); |
| 942 | wrap(pExaScr, pScreen, ChangeWindowAttributes, exaChangeWindowAttributes); |
| 943 | wrap(pExaScr, pScreen, BitmapToRegion, exaBitmapToRegion); |
| 944 | wrap(pExaScr, pScreen, CreateScreenResources, exaCreateScreenResources); |
| 945 | |
| 946 | if (ps) { |
| 947 | wrap(pExaScr, ps, Composite, exaComposite); |
| 948 | if (pScreenInfo->PrepareComposite) { |
| 949 | wrap(pExaScr, ps, Glyphs, exaGlyphs); |
| 950 | } |
| 951 | else { |
| 952 | wrap(pExaScr, ps, Glyphs, ExaCheckGlyphs); |
| 953 | } |
| 954 | wrap(pExaScr, ps, Trapezoids, exaTrapezoids); |
| 955 | wrap(pExaScr, ps, Triangles, exaTriangles); |
| 956 | wrap(pExaScr, ps, AddTraps, ExaCheckAddTraps); |
| 957 | } |
| 958 | |
| 959 | #ifdef MITSHM |
| 960 | /* |
| 961 | * Don't allow shared pixmaps. |
| 962 | */ |
| 963 | ShmRegisterFuncs(pScreen, &exaShmFuncs); |
| 964 | #endif |
| 965 | /* |
| 966 | * Hookup offscreen pixmaps |
| 967 | */ |
| 968 | if (pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) { |
| 969 | if (!dixRegisterScreenSpecificPrivateKey |
| 970 | (pScreen, &pExaScr->pixmapPrivateKeyRec, PRIVATE_PIXMAP, |
| 971 | sizeof(ExaPixmapPrivRec))) { |
| 972 | LogMessage(X_WARNING, |
| 973 | "EXA(%d): Failed to allocate pixmap private\n", |
| 974 | pScreen->myNum); |
| 975 | return FALSE; |
| 976 | } |
| 977 | if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) { |
| 978 | if (pExaScr->info->flags & EXA_MIXED_PIXMAPS) { |
| 979 | wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_mixed); |
| 980 | wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_mixed); |
| 981 | wrap(pExaScr, pScreen, ModifyPixmapHeader, |
| 982 | exaModifyPixmapHeader_mixed); |
| 983 | wrap(pExaScr, pScreen, SharePixmapBacking, exaSharePixmapBacking_mixed); |
| 984 | wrap(pExaScr, pScreen, SetSharedPixmapBacking, exaSetSharedPixmapBacking_mixed); |
| 985 | |
| 986 | pExaScr->do_migration = exaDoMigration_mixed; |
| 987 | pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_mixed; |
| 988 | pExaScr->do_move_in_pixmap = exaMoveInPixmap_mixed; |
| 989 | pExaScr->do_move_out_pixmap = NULL; |
| 990 | pExaScr->prepare_access_reg = exaPrepareAccessReg_mixed; |
| 991 | } |
| 992 | else { |
| 993 | wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_driver); |
| 994 | wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_driver); |
| 995 | wrap(pExaScr, pScreen, ModifyPixmapHeader, |
| 996 | exaModifyPixmapHeader_driver); |
| 997 | pExaScr->do_migration = NULL; |
| 998 | pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_driver; |
| 999 | pExaScr->do_move_in_pixmap = NULL; |
| 1000 | pExaScr->do_move_out_pixmap = NULL; |
| 1001 | pExaScr->prepare_access_reg = NULL; |
| 1002 | } |
| 1003 | } |
| 1004 | else { |
| 1005 | wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_classic); |
| 1006 | wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_classic); |
| 1007 | wrap(pExaScr, pScreen, ModifyPixmapHeader, |
| 1008 | exaModifyPixmapHeader_classic); |
| 1009 | pExaScr->do_migration = exaDoMigration_classic; |
| 1010 | pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_classic; |
| 1011 | pExaScr->do_move_in_pixmap = exaMoveInPixmap_classic; |
| 1012 | pExaScr->do_move_out_pixmap = exaMoveOutPixmap_classic; |
| 1013 | pExaScr->prepare_access_reg = exaPrepareAccessReg_classic; |
| 1014 | } |
| 1015 | if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) { |
| 1016 | LogMessage(X_INFO, "EXA(%d): Offscreen pixmap area of %lu bytes\n", |
| 1017 | pScreen->myNum, |
| 1018 | pExaScr->info->memorySize - |
| 1019 | pExaScr->info->offScreenBase); |
| 1020 | } |
| 1021 | else { |
| 1022 | LogMessage(X_INFO, "EXA(%d): Driver allocated offscreen pixmaps\n", |
| 1023 | pScreen->myNum); |
| 1024 | |
| 1025 | } |
| 1026 | } |
| 1027 | else |
| 1028 | LogMessage(X_INFO, "EXA(%d): No offscreen pixmaps\n", pScreen->myNum); |
| 1029 | |
| 1030 | if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) { |
| 1031 | DBG_PIXMAP(("============== %ld < %ld\n", pExaScr->info->offScreenBase, |
| 1032 | pExaScr->info->memorySize)); |
| 1033 | if (pExaScr->info->offScreenBase < pExaScr->info->memorySize) { |
| 1034 | if (!exaOffscreenInit(pScreen)) { |
| 1035 | LogMessage(X_WARNING, |
| 1036 | "EXA(%d): Offscreen pixmap setup failed\n", |
| 1037 | pScreen->myNum); |
| 1038 | return FALSE; |
| 1039 | } |
| 1040 | } |
| 1041 | } |
| 1042 | |
| 1043 | if (ps->Glyphs == exaGlyphs) |
| 1044 | exaGlyphsInit(pScreen); |
| 1045 | |
| 1046 | LogMessage(X_INFO, "EXA(%d): Driver registered support for the following" |
| 1047 | " operations:\n", pScreen->myNum); |
| 1048 | assert(pScreenInfo->PrepareSolid != NULL); |
| 1049 | LogMessage(X_INFO, " Solid\n"); |
| 1050 | assert(pScreenInfo->PrepareCopy != NULL); |
| 1051 | LogMessage(X_INFO, " Copy\n"); |
| 1052 | if (pScreenInfo->PrepareComposite != NULL) { |
| 1053 | LogMessage(X_INFO, " Composite (RENDER acceleration)\n"); |
| 1054 | } |
| 1055 | if (pScreenInfo->UploadToScreen != NULL) { |
| 1056 | LogMessage(X_INFO, " UploadToScreen\n"); |
| 1057 | } |
| 1058 | if (pScreenInfo->DownloadFromScreen != NULL) { |
| 1059 | LogMessage(X_INFO, " DownloadFromScreen\n"); |
| 1060 | } |
| 1061 | |
| 1062 | return TRUE; |
| 1063 | } |
| 1064 | |
| 1065 | /** |
| 1066 | * exaDriverFini tears down EXA on a given screen. |
| 1067 | * |
| 1068 | * @param pScreen screen being torn down. |
| 1069 | */ |
| 1070 | void |
| 1071 | exaDriverFini(ScreenPtr pScreen) |
| 1072 | { |
| 1073 | /*right now does nothing */ |
| 1074 | } |
| 1075 | |
| 1076 | /** |
| 1077 | * exaMarkSync() should be called after any asynchronous drawing by the hardware. |
| 1078 | * |
| 1079 | * @param pScreen screen which drawing occurred on |
| 1080 | * |
| 1081 | * exaMarkSync() sets a flag to indicate that some asynchronous drawing has |
| 1082 | * happened and a WaitSync() will be necessary before relying on the contents of |
| 1083 | * offscreen memory from the CPU's perspective. It also calls an optional |
| 1084 | * driver MarkSync() callback, the return value of which may be used to do partial |
| 1085 | * synchronization with the hardware in the future. |
| 1086 | */ |
| 1087 | void |
| 1088 | exaMarkSync(ScreenPtr pScreen) |
| 1089 | { |
| 1090 | ExaScreenPriv(pScreen); |
| 1091 | |
| 1092 | pExaScr->info->needsSync = TRUE; |
| 1093 | if (pExaScr->info->MarkSync != NULL) { |
| 1094 | pExaScr->info->lastMarker = (*pExaScr->info->MarkSync) (pScreen); |
| 1095 | } |
| 1096 | } |
| 1097 | |
| 1098 | /** |
| 1099 | * exaWaitSync() ensures that all drawing has been completed. |
| 1100 | * |
| 1101 | * @param pScreen screen being synchronized. |
| 1102 | * |
| 1103 | * Calls down into the driver to ensure that all previous drawing has completed. |
| 1104 | * It should always be called before relying on the framebuffer contents |
| 1105 | * reflecting previous drawing, from a CPU perspective. |
| 1106 | */ |
| 1107 | void |
| 1108 | exaWaitSync(ScreenPtr pScreen) |
| 1109 | { |
| 1110 | ExaScreenPriv(pScreen); |
| 1111 | |
| 1112 | if (pExaScr->info->needsSync && !pExaScr->swappedOut) { |
| 1113 | (*pExaScr->info->WaitMarker) (pScreen, pExaScr->info->lastMarker); |
| 1114 | pExaScr->info->needsSync = FALSE; |
| 1115 | } |
| 1116 | } |
| 1117 | |
| 1118 | /** |
| 1119 | * Performs migration of the pixmaps according to the operation information |
| 1120 | * provided in pixmaps and can_accel and the migration scheme chosen in the |
| 1121 | * config file. |
| 1122 | */ |
| 1123 | void |
| 1124 | exaDoMigration(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel) |
| 1125 | { |
| 1126 | ScreenPtr pScreen = pixmaps[0].pPix->drawable.pScreen; |
| 1127 | |
| 1128 | ExaScreenPriv(pScreen); |
| 1129 | |
| 1130 | if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) |
| 1131 | return; |
| 1132 | |
| 1133 | if (pExaScr->do_migration) |
| 1134 | (*pExaScr->do_migration) (pixmaps, npixmaps, can_accel); |
| 1135 | } |
| 1136 | |
| 1137 | void |
| 1138 | exaMoveInPixmap(PixmapPtr pPixmap) |
| 1139 | { |
| 1140 | ScreenPtr pScreen = pPixmap->drawable.pScreen; |
| 1141 | |
| 1142 | ExaScreenPriv(pScreen); |
| 1143 | |
| 1144 | if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) |
| 1145 | return; |
| 1146 | |
| 1147 | if (pExaScr->do_move_in_pixmap) |
| 1148 | (*pExaScr->do_move_in_pixmap) (pPixmap); |
| 1149 | } |
| 1150 | |
| 1151 | void |
| 1152 | exaMoveOutPixmap(PixmapPtr pPixmap) |
| 1153 | { |
| 1154 | ScreenPtr pScreen = pPixmap->drawable.pScreen; |
| 1155 | |
| 1156 | ExaScreenPriv(pScreen); |
| 1157 | |
| 1158 | if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) |
| 1159 | return; |
| 1160 | |
| 1161 | if (pExaScr->do_move_out_pixmap) |
| 1162 | (*pExaScr->do_move_out_pixmap) (pPixmap); |
| 1163 | } |