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a09e091a JB |
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 | } |