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Diffstat (limited to 'xorg-server/exa/exa_migration.c')
| -rw-r--r-- | xorg-server/exa/exa_migration.c | 700 |
1 files changed, 0 insertions, 700 deletions
diff --git a/xorg-server/exa/exa_migration.c b/xorg-server/exa/exa_migration.c deleted file mode 100644 index 17dd87e4c..000000000 --- a/xorg-server/exa/exa_migration.c +++ /dev/null @@ -1,700 +0,0 @@ -/* - * Copyright © 2006 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Authors: - * Eric Anholt <eric@anholt.net> - * Michel Dänzer <michel@tungstengraphics.com> - * - */ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <string.h> - -#include "exa_priv.h" -#include "exa.h" - -#if DEBUG_MIGRATE -#define DBG_MIGRATE(a) ErrorF a -#else -#define DBG_MIGRATE(a) -#endif - -/** - * Returns TRUE if the pixmap is not movable. This is the case where it's a - * fake pixmap for the frontbuffer (no pixmap private) or it's a scratch - * pixmap created by some other X Server internals (the score says it's - * pinned). - */ -static Bool -exaPixmapIsPinned (PixmapPtr pPix) -{ - ExaPixmapPriv (pPix); - - return pExaPixmap == NULL || pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED; -} - -/** - * The fallback path for UTS/DFS failing is to just memcpy. exaCopyDirtyToSys - * and exaCopyDirtyToFb both needed to do this loop. - */ -static void -exaMemcpyBox (PixmapPtr pPixmap, BoxPtr pbox, CARD8 *src, int src_pitch, - CARD8 *dst, int dst_pitch) - { - int i, cpp = pPixmap->drawable.bitsPerPixel / 8; - int bytes = (pbox->x2 - pbox->x1) * cpp; - - src += pbox->y1 * src_pitch + pbox->x1 * cpp; - dst += pbox->y1 * dst_pitch + pbox->x1 * cpp; - - for (i = pbox->y2 - pbox->y1; i; i--) { - memcpy (dst, src, bytes); - src += src_pitch; - dst += dst_pitch; - } -} - -/** - * Returns TRUE if the pixmap is dirty (has been modified in its current - * location compared to the other), or lacks a private for tracking - * dirtiness. - */ -static Bool -exaPixmapIsDirty (PixmapPtr pPix) -{ - ExaPixmapPriv (pPix); - - return pExaPixmap == NULL || - REGION_NOTEMPTY (pScreen, DamageRegion(pExaPixmap->pDamage)) || - !REGION_EQUAL(pScreen, &pExaPixmap->validSys, &pExaPixmap->validFB); -} - -/** - * Returns TRUE if the pixmap is either pinned in FB, or has a sufficient score - * to be considered "should be in framebuffer". That's just anything that has - * had more acceleration than fallbacks, or has no score yet. - * - * Only valid if using a migration scheme that tracks score. - */ -static Bool -exaPixmapShouldBeInFB (PixmapPtr pPix) -{ - ExaPixmapPriv (pPix); - - if (exaPixmapIsPinned (pPix)) - return TRUE; - - return pExaPixmap->score >= 0; -} - -/** - * If the pixmap is currently dirty, this copies at least the dirty area from - * FB to system or vice versa. Both areas must be allocated. - */ -static void -exaCopyDirty(ExaMigrationPtr migrate, RegionPtr pValidDst, RegionPtr pValidSrc, - Bool (*transfer) (PixmapPtr pPix, int x, int y, int w, int h, - char *sys, int sys_pitch), CARD8 *fallback_src, - CARD8 *fallback_dst, int fallback_srcpitch, int fallback_dstpitch, - int fallback_index, void (*sync) (ScreenPtr pScreen)) -{ - PixmapPtr pPixmap = migrate->pPix; - ExaPixmapPriv (pPixmap); - RegionPtr damage = DamageRegion (pExaPixmap->pDamage); - RegionRec CopyReg; - Bool save_offscreen; - int save_pitch; - BoxPtr pBox; - int nbox; - Bool access_prepared = FALSE; - Bool need_sync = FALSE; - - /* Damaged bits are valid in current copy but invalid in other one */ - if (exaPixmapIsOffscreen(pPixmap)) { - REGION_UNION(pScreen, &pExaPixmap->validFB, &pExaPixmap->validFB, - damage); - REGION_SUBTRACT(pScreen, &pExaPixmap->validSys, &pExaPixmap->validSys, - damage); - } else { - REGION_UNION(pScreen, &pExaPixmap->validSys, &pExaPixmap->validSys, - damage); - REGION_SUBTRACT(pScreen, &pExaPixmap->validFB, &pExaPixmap->validFB, - damage); - } - - REGION_EMPTY(pScreen, damage); - - /* Copy bits valid in source but not in destination */ - REGION_NULL(pScreen, &CopyReg); - REGION_SUBTRACT(pScreen, &CopyReg, pValidSrc, pValidDst); - - if (migrate->as_dst) { - ExaScreenPriv (pPixmap->drawable.pScreen); - - /* XXX: The pending damage region will be marked as damaged after the - * operation, so it should serve as an upper bound for the region that - * needs to be synchronized for the operation. Unfortunately, this - * causes corruption in some cases, e.g. when starting compiz. See - * https://bugs.freedesktop.org/show_bug.cgi?id=12916 . - */ - if (pExaScr->optimize_migration) { - RegionPtr pending_damage = DamagePendingRegion(pExaPixmap->pDamage); - -#if DEBUG_MIGRATE - if (REGION_NIL(pending_damage)) { - static Bool firsttime = TRUE; - - if (firsttime) { - ErrorF("%s: Pending damage region empty!\n", __FUNCTION__ ); - firsttime = FALSE; - } - } -#endif - - REGION_INTERSECT(pScreen, &CopyReg, &CopyReg, pending_damage); - } - - /* The caller may provide a region to be subtracted from the calculated - * dirty region. This is to avoid migration of bits that don't - * contribute to the result of the operation. - */ - if (migrate->pReg) - REGION_SUBTRACT(pScreen, &CopyReg, &CopyReg, migrate->pReg); - } else { - /* The caller may restrict the region to be migrated for source pixmaps - * to what's relevant for the operation. - */ - if (migrate->pReg) - REGION_INTERSECT(pScreen, &CopyReg, &CopyReg, migrate->pReg); - } - - pBox = REGION_RECTS(&CopyReg); - nbox = REGION_NUM_RECTS(&CopyReg); - - save_offscreen = pExaPixmap->offscreen; - save_pitch = pPixmap->devKind; - pExaPixmap->offscreen = TRUE; - pPixmap->devKind = pExaPixmap->fb_pitch; - - while (nbox--) { - pBox->x1 = max(pBox->x1, 0); - pBox->y1 = max(pBox->y1, 0); - pBox->x2 = min(pBox->x2, pPixmap->drawable.width); - pBox->y2 = min(pBox->y2, pPixmap->drawable.height); - - if (pBox->x1 >= pBox->x2 || pBox->y1 >= pBox->y2) - continue; - - if (!transfer || !transfer (pPixmap, - pBox->x1, pBox->y1, - pBox->x2 - pBox->x1, - pBox->y2 - pBox->y1, - (char *) (pExaPixmap->sys_ptr - + pBox->y1 * pExaPixmap->sys_pitch - + pBox->x1 * pPixmap->drawable.bitsPerPixel / 8), - pExaPixmap->sys_pitch)) - { - if (!access_prepared) { - ExaDoPrepareAccess(&pPixmap->drawable, fallback_index); - access_prepared = TRUE; - } - exaMemcpyBox (pPixmap, pBox, - fallback_src, fallback_srcpitch, - fallback_dst, fallback_dstpitch); - } else - need_sync = TRUE; - - pBox++; - } - - if (access_prepared) - exaFinishAccess(&pPixmap->drawable, fallback_index); - else if (need_sync) - sync (pPixmap->drawable.pScreen); - - pExaPixmap->offscreen = save_offscreen; - pPixmap->devKind = save_pitch; - - /* The copied bits are now valid in destination */ - REGION_UNION(pScreen, pValidDst, pValidDst, &CopyReg); - - REGION_UNINIT(pScreen, &CopyReg); -} - -/** - * If the pixmap is currently dirty, this copies at least the dirty area from - * the framebuffer memory copy to the system memory copy. Both areas must be - * allocated. - */ -static void -exaCopyDirtyToSys (ExaMigrationPtr migrate) -{ - PixmapPtr pPixmap = migrate->pPix; - ExaScreenPriv (pPixmap->drawable.pScreen); - ExaPixmapPriv (pPixmap); - - exaCopyDirty(migrate, &pExaPixmap->validSys, &pExaPixmap->validFB, - pExaScr->info->DownloadFromScreen, pExaPixmap->fb_ptr, - pExaPixmap->sys_ptr, pExaPixmap->fb_pitch, - pExaPixmap->sys_pitch, EXA_PREPARE_SRC, exaWaitSync); -} - -/** - * If the pixmap is currently dirty, this copies at least the dirty area from - * the system memory copy to the framebuffer memory copy. Both areas must be - * allocated. - */ -static void -exaCopyDirtyToFb (ExaMigrationPtr migrate) -{ - PixmapPtr pPixmap = migrate->pPix; - ExaScreenPriv (pPixmap->drawable.pScreen); - ExaPixmapPriv (pPixmap); - - exaCopyDirty(migrate, &pExaPixmap->validFB, &pExaPixmap->validSys, - pExaScr->info->UploadToScreen, pExaPixmap->sys_ptr, - pExaPixmap->fb_ptr, pExaPixmap->sys_pitch, - pExaPixmap->fb_pitch, EXA_PREPARE_DEST, exaMarkSync); -} - -/** - * Allocates a framebuffer copy of the pixmap if necessary, and then copies - * any necessary pixmap data into the framebuffer copy and points the pixmap at - * it. - * - * Note that when first allocated, a pixmap will have FALSE dirty flag. - * This is intentional because pixmap data starts out undefined. So if we move - * it in due to the first operation against it being accelerated, it will have - * undefined framebuffer contents that we didn't have to upload. If we do - * moveouts (and moveins) after the first movein, then we will only have to copy - * back and forth if the pixmap was written to after the last synchronization of - * the two copies. Then, at exaPixmapSave (when the framebuffer copy goes away) - * we mark the pixmap dirty, so that the next exaMoveInPixmap will actually move - * all the data, since it's almost surely all valid now. - */ -static void -exaDoMoveInPixmap (ExaMigrationPtr migrate) -{ - PixmapPtr pPixmap = migrate->pPix; - ScreenPtr pScreen = pPixmap->drawable.pScreen; - ExaScreenPriv (pScreen); - ExaPixmapPriv (pPixmap); - - /* If we're VT-switched away, no touching card memory allowed. */ - if (pExaScr->swappedOut) - return; - - /* If we're not allowed to move, then fail. */ - if (exaPixmapIsPinned(pPixmap)) - return; - - /* Don't migrate in pixmaps which are less than 8bpp. This avoids a lot of - * fragility in EXA, and <8bpp is probably not used enough any more to care - * (at least, not in acceleratd paths). - */ - if (pPixmap->drawable.bitsPerPixel < 8) - return; - - if (pExaPixmap->accel_blocked) - return; - - if (pExaPixmap->area == NULL) { - pExaPixmap->area = - exaOffscreenAlloc (pScreen, pExaPixmap->fb_size, - pExaScr->info->pixmapOffsetAlign, FALSE, - exaPixmapSave, (pointer) pPixmap); - if (pExaPixmap->area == NULL) - return; - - pExaPixmap->fb_ptr = (CARD8 *) pExaScr->info->memoryBase + - pExaPixmap->area->offset; - } - - exaCopyDirtyToFb (migrate); - - if (exaPixmapIsOffscreen(pPixmap)) - return; - - DBG_MIGRATE (("-> %p (0x%x) (%dx%d) (%c)\n", pPixmap, - (ExaGetPixmapPriv(pPixmap)->area ? - ExaGetPixmapPriv(pPixmap)->area->offset : 0), - pPixmap->drawable.width, - pPixmap->drawable.height, - exaPixmapIsDirty(pPixmap) ? 'd' : 'c')); - - pExaPixmap->offscreen = TRUE; - - pPixmap->devKind = pExaPixmap->fb_pitch; - pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; -} - -void -exaMoveInPixmap (PixmapPtr pPixmap) -{ - static ExaMigrationRec migrate = { FALSE, TRUE, NULL, - NULL }; - - migrate.pPix = pPixmap; - exaDoMoveInPixmap (&migrate); -} - -/** - * Switches the current active location of the pixmap to system memory, copying - * updated data out if necessary. - */ -static void -exaDoMoveOutPixmap (ExaMigrationPtr migrate) -{ - PixmapPtr pPixmap = migrate->pPix; - ExaPixmapPriv (pPixmap); - - if (!pExaPixmap->area || exaPixmapIsPinned(pPixmap)) - return; - - exaCopyDirtyToSys (migrate); - - if (exaPixmapIsOffscreen(pPixmap)) { - - DBG_MIGRATE (("<- %p (%p) (%dx%d) (%c)\n", pPixmap, - (void*)(ExaGetPixmapPriv(pPixmap)->area ? - ExaGetPixmapPriv(pPixmap)->area->offset : 0), - pPixmap->drawable.width, - pPixmap->drawable.height, - exaPixmapIsDirty(pPixmap) ? 'd' : 'c')); - - pExaPixmap->offscreen = FALSE; - - pPixmap->devKind = pExaPixmap->sys_pitch; - pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; - } -} - -void -exaMoveOutPixmap (PixmapPtr pPixmap) -{ - static ExaMigrationRec migrate = { FALSE, TRUE, NULL, - NULL }; - - migrate.pPix = pPixmap; - exaDoMoveOutPixmap (&migrate); -} - - -/** - * Copies out important pixmap data and removes references to framebuffer area. - * Called when the memory manager decides it's time to kick the pixmap out of - * framebuffer entirely. - */ -void -exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area) -{ - PixmapPtr pPixmap = area->privData; - ExaPixmapPriv(pPixmap); - - exaMoveOutPixmap(pPixmap); - - pExaPixmap->fb_ptr = NULL; - pExaPixmap->area = NULL; - - /* Mark all FB bits as invalid, so all valid system bits get copied to FB - * next time */ - REGION_EMPTY(pPixmap->drawable.pScreen, &pExaPixmap->validFB); -} - -/** - * For the "greedy" migration scheme, pushes the pixmap toward being located in - * framebuffer memory. - */ -static void -exaMigrateTowardFb (ExaMigrationPtr migrate) -{ - PixmapPtr pPixmap = migrate->pPix; - ExaPixmapPriv (pPixmap); - - if (pExaPixmap == NULL) { - DBG_MIGRATE(("UseScreen: ignoring exa-uncontrolled pixmap %p (%s)\n", - (pointer)pPixmap, - exaPixmapIsOffscreen(pPixmap) ? "s" : "m")); - return; - } - - if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) { - DBG_MIGRATE(("UseScreen: not migrating pinned pixmap %p\n", - (pointer)pPixmap)); - return; - } - - DBG_MIGRATE(("UseScreen %p score %d\n", - (pointer)pPixmap, pExaPixmap->score)); - - if (pExaPixmap->score == EXA_PIXMAP_SCORE_INIT) { - exaDoMoveInPixmap(migrate); - pExaPixmap->score = 0; - } - - if (pExaPixmap->score < EXA_PIXMAP_SCORE_MAX) - pExaPixmap->score++; - - if (pExaPixmap->score >= EXA_PIXMAP_SCORE_MOVE_IN && - !exaPixmapIsOffscreen(pPixmap)) - { - exaDoMoveInPixmap(migrate); - } - - ExaOffscreenMarkUsed (pPixmap); -} - -/** - * For the "greedy" migration scheme, pushes the pixmap toward being located in - * system memory. - */ -static void -exaMigrateTowardSys (ExaMigrationPtr migrate) -{ - PixmapPtr pPixmap = migrate->pPix; - ExaPixmapPriv (pPixmap); - - if (pExaPixmap == NULL) { - DBG_MIGRATE(("UseMem: ignoring exa-uncontrolled pixmap %p (%s)\n", - (pointer)pPixmap, - exaPixmapIsOffscreen(pPixmap) ? "s" : "m")); - return; - } - - DBG_MIGRATE(("UseMem: %p score %d\n", (pointer)pPixmap, pExaPixmap->score)); - - if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) - return; - - if (pExaPixmap->score == EXA_PIXMAP_SCORE_INIT) - pExaPixmap->score = 0; - - if (pExaPixmap->score > EXA_PIXMAP_SCORE_MIN) - pExaPixmap->score--; - - if (pExaPixmap->score <= EXA_PIXMAP_SCORE_MOVE_OUT && pExaPixmap->area) - exaDoMoveOutPixmap(migrate); -} - -/** - * If the pixmap has both a framebuffer and system memory copy, this function - * asserts that both of them are the same. - */ -static Bool -exaAssertNotDirty (PixmapPtr pPixmap) -{ - ExaPixmapPriv (pPixmap); - CARD8 *dst, *src; - RegionRec ValidReg; - int dst_pitch, src_pitch, cpp, y, nbox; - BoxPtr pBox; - Bool ret = TRUE; - - if (exaPixmapIsPinned(pPixmap) || pExaPixmap->area == NULL) - return ret; - - REGION_NULL(pScreen, &ValidReg); - REGION_INTERSECT(pScreen, &ValidReg, &pExaPixmap->validFB, - &pExaPixmap->validSys); - nbox = REGION_NUM_RECTS(&ValidReg); - - if (!nbox) - goto out; - - pBox = REGION_RECTS(&ValidReg); - - dst_pitch = pExaPixmap->sys_pitch; - src_pitch = pExaPixmap->fb_pitch; - cpp = pPixmap->drawable.bitsPerPixel / 8; - - ExaDoPrepareAccess(&pPixmap->drawable, EXA_PREPARE_SRC); - while (nbox--) { - int rowbytes; - - pBox->x1 = max(pBox->x1, 0); - pBox->y1 = max(pBox->y1, 0); - pBox->x2 = min(pBox->x2, pPixmap->drawable.width); - pBox->y2 = min(pBox->y2, pPixmap->drawable.height); - - if (pBox->x1 >= pBox->x2 || pBox->y1 >= pBox->y2) - continue; - - rowbytes = (pBox->x2 - pBox->x1) * cpp; - src = pExaPixmap->fb_ptr + pBox->y1 * src_pitch + pBox->x1 * cpp; - dst = pExaPixmap->sys_ptr + pBox->y1 * dst_pitch + pBox->x1 * cpp; - - for (y = pBox->y1; y < pBox->y2; - y++, src += src_pitch, dst += dst_pitch) { - if (memcmp(dst, src, rowbytes) != 0) { - ret = FALSE; - exaPixmapDirty(pPixmap, pBox->x1, pBox->y1, pBox->x2, - pBox->y2); - break; - } - } - } - exaFinishAccess(&pPixmap->drawable, EXA_PREPARE_SRC); - -out: - REGION_UNINIT(pScreen, &ValidReg); - return ret; -} - -/** - * Performs migration of the pixmaps according to the operation information - * provided in pixmaps and can_accel and the migration scheme chosen in the - * config file. - */ -void -exaDoMigration (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel) -{ - ScreenPtr pScreen = pixmaps[0].pPix->drawable.pScreen; - ExaScreenPriv(pScreen); - int i, j; - - if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) - return; - - /* If this debugging flag is set, check each pixmap for whether it is marked - * as clean, and if so, actually check if that's the case. This should help - * catch issues with failing to mark a drawable as dirty. While it will - * catch them late (after the operation happened), it at least explains what - * went wrong, and instrumenting the code to find what operation happened - * to the pixmap last shouldn't be hard. - */ - if (pExaScr->checkDirtyCorrectness) { - for (i = 0; i < npixmaps; i++) { - if (!exaPixmapIsDirty (pixmaps[i].pPix) && - !exaAssertNotDirty (pixmaps[i].pPix)) - ErrorF("%s: Pixmap %d dirty but not marked as such!\n", __FUNCTION__ , i); - } - } - /* If anything is pinned in system memory, we won't be able to - * accelerate. - */ - for (i = 0; i < npixmaps; i++) { - if (exaPixmapIsPinned (pixmaps[i].pPix) && - !exaPixmapIsOffscreen (pixmaps[i].pPix)) - { - EXA_FALLBACK(("Pixmap %p (%dx%d) pinned in sys\n", pixmaps[i].pPix, - pixmaps[i].pPix->drawable.width, - pixmaps[i].pPix->drawable.height)); - can_accel = FALSE; - break; - } - } - - if (pExaScr->migration == ExaMigrationSmart) { - /* If we've got something as a destination that we shouldn't cause to - * become newly dirtied, take the unaccelerated route. - */ - for (i = 0; i < npixmaps; i++) { - if (pixmaps[i].as_dst && !exaPixmapShouldBeInFB (pixmaps[i].pPix) && - !exaPixmapIsDirty (pixmaps[i].pPix)) - { - for (i = 0; i < npixmaps; i++) { - if (!exaPixmapIsDirty (pixmaps[i].pPix)) - exaDoMoveOutPixmap (pixmaps + i); - } - return; - } - } - - /* If we aren't going to accelerate, then we migrate everybody toward - * system memory, and kick out if it's free. - */ - if (!can_accel) { - for (i = 0; i < npixmaps; i++) { - exaMigrateTowardSys (pixmaps + i); - if (!exaPixmapIsDirty (pixmaps[i].pPix)) - exaDoMoveOutPixmap (pixmaps + i); - } - return; - } - - /* Finally, the acceleration path. Move them all in. */ - for (i = 0; i < npixmaps; i++) { - exaMigrateTowardFb(pixmaps + i); - exaDoMoveInPixmap(pixmaps + i); - } - } else if (pExaScr->migration == ExaMigrationGreedy) { - /* If we can't accelerate, either because the driver can't or because one of - * the pixmaps is pinned in system memory, then we migrate everybody toward - * system memory. - * - * We also migrate toward system if all pixmaps involved are currently in - * system memory -- this can mitigate thrashing when there are significantly - * more pixmaps active than would fit in memory. - * - * If not, then we migrate toward FB so that hopefully acceleration can - * happen. - */ - if (!can_accel) { - for (i = 0; i < npixmaps; i++) - exaMigrateTowardSys (pixmaps + i); - return; - } - - for (i = 0; i < npixmaps; i++) { - if (exaPixmapIsOffscreen(pixmaps[i].pPix)) { - /* Found one in FB, so move all to FB. */ - for (j = 0; j < npixmaps; j++) - exaMigrateTowardFb(pixmaps + i); - return; - } - } - - /* Nobody's in FB, so move all away from FB. */ - for (i = 0; i < npixmaps; i++) - exaMigrateTowardSys(pixmaps + i); - } else if (pExaScr->migration == ExaMigrationAlways) { - /* Always move the pixmaps out if we can't accelerate. If we can - * accelerate, try to move them all in. If that fails, then move them - * back out. - */ - if (!can_accel) { - for (i = 0; i < npixmaps; i++) - exaDoMoveOutPixmap(pixmaps + i); - return; - } - - /* Now, try to move them all into FB */ - for (i = 0; i < npixmaps; i++) { - exaDoMoveInPixmap(pixmaps + i); - } - - /* If we couldn't fit everything in, abort */ - for (i = 0; i < npixmaps; i++) { - if (!exaPixmapIsOffscreen(pixmaps[i].pPix)) { - return; - } - } - - /* Yay, everything's offscreen, mark memory as used */ - for (i = 0; i < npixmaps; i++) { - ExaOffscreenMarkUsed (pixmaps[i].pPix); - } - } -} |