0369eeeb6b
If there are several software fallbacks affecting the system memory copy of the same pixmap, only copy the results back to the driver pixmap when it's used for acceleration again, or in the BlockHandler, whichever happens first.
228 lines
6.7 KiB
C
228 lines
6.7 KiB
C
/*
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* Copyright © 2009 Maarten Maathuis
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <string.h>
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#include "exa_priv.h"
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#include "exa.h"
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void
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exaCreateDriverPixmap_mixed(PixmapPtr pPixmap)
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{
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ScreenPtr pScreen = pPixmap->drawable.pScreen;
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ExaScreenPriv(pScreen);
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ExaPixmapPriv(pPixmap);
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int w = pPixmap->drawable.width, h = pPixmap->drawable.height;
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int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel;
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int usage_hint = pPixmap->usage_hint;
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int paddedWidth = pExaPixmap->sys_pitch;
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/* Already done. */
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if (pExaPixmap->driverPriv)
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return;
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if (exaPixmapIsPinned(pPixmap))
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return;
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/* Can't accel 1/4 bpp. */
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if (pExaPixmap->accel_blocked || bpp < 8)
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return;
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if (pExaScr->info->CreatePixmap2) {
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int new_pitch = 0;
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pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, &new_pitch);
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paddedWidth = pExaPixmap->fb_pitch = new_pitch;
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} else {
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if (paddedWidth < pExaPixmap->fb_pitch)
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paddedWidth = pExaPixmap->fb_pitch;
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pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, paddedWidth*h, 0);
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}
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if (!pExaPixmap->driverPriv)
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return;
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(*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
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paddedWidth, NULL);
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}
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void
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exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)
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{
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int i;
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/* If anything is pinned in system memory, we won't be able to
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* accelerate.
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*/
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for (i = 0; i < npixmaps; i++) {
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if (exaPixmapIsPinned (pixmaps[i].pPix) &&
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!exaPixmapIsOffscreen (pixmaps[i].pPix))
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{
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can_accel = FALSE;
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break;
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}
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}
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/* We can do nothing. */
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if (!can_accel)
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return;
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for (i = 0; i < npixmaps; i++) {
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PixmapPtr pPixmap = pixmaps[i].pPix;
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ExaPixmapPriv(pPixmap);
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if (!pExaPixmap->driverPriv)
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exaCreateDriverPixmap_mixed(pPixmap);
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if (pExaPixmap->pDamage && exaPixmapIsOffscreen(pPixmap)) {
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ExaScreenPriv(pPixmap->drawable.pScreen);
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pPixmap->devKind = pExaPixmap->fb_pitch;
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exaCopyDirtyToFb(pixmaps + i);
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if (pExaScr->deferred_mixed_pixmap == pPixmap)
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pExaScr->deferred_mixed_pixmap = NULL;
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}
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pExaPixmap->offscreen = exaPixmapIsOffscreen(pPixmap);
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}
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}
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void
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exaMoveInPixmap_mixed(PixmapPtr pPixmap)
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{
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ExaMigrationRec pixmaps[1];
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pixmaps[0].as_dst = FALSE;
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pixmaps[0].as_src = TRUE;
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pixmaps[0].pPix = pPixmap;
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pixmaps[0].pReg = NULL;
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exaDoMigration(pixmaps, 1, TRUE);
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}
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/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we
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* use the DownloadFromScreen hook to retrieve contents to a copy in system
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* memory, perform software rendering on that and move back the results with the
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* UploadToScreen hook (see exaFinishAccess_mixed).
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*/
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void
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exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
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{
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if (!ExaDoPrepareAccess(pPixmap, index)) {
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ExaPixmapPriv(pPixmap);
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Bool is_offscreen = exaPixmapIsOffscreen(pPixmap);
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ExaMigrationRec pixmaps[1];
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/* Do we need to allocate our system buffer? */
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if (!pExaPixmap->sys_ptr) {
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pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch *
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pPixmap->drawable.height);
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if (!pExaPixmap->sys_ptr)
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FatalError("EXA: malloc failed for size %d bytes\n",
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pExaPixmap->sys_pitch * pPixmap->drawable.height);
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}
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if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {
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pixmaps[0].as_dst = TRUE;
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pixmaps[0].as_src = FALSE;
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} else {
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pixmaps[0].as_dst = FALSE;
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pixmaps[0].as_src = TRUE;
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}
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pixmaps[0].pPix = pPixmap;
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pixmaps[0].pReg = pReg;
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if (!pExaPixmap->pDamage && (is_offscreen || !exaPixmapIsPinned(pPixmap))) {
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Bool as_dst = pixmaps[0].as_dst;
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/* Set up damage tracking */
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pExaPixmap->pDamage = DamageCreate(NULL, NULL, DamageReportNone,
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TRUE, pPixmap->drawable.pScreen,
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pPixmap);
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DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
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/* This ensures that pending damage reflects the current operation. */
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/* This is used by exa to optimize migration. */
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DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
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if (is_offscreen) {
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exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
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pPixmap->drawable.height);
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/* We don't know which region of the destination will be damaged,
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* have to assume all of it
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*/
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if (as_dst) {
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pixmaps[0].as_dst = FALSE;
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pixmaps[0].as_src = TRUE;
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pixmaps[0].pReg = NULL;
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}
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pPixmap->devKind = pExaPixmap->fb_pitch;
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exaCopyDirtyToSys(pixmaps);
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}
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if (as_dst)
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exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
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pPixmap->drawable.height);
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} else if (is_offscreen) {
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pPixmap->devKind = pExaPixmap->fb_pitch;
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exaCopyDirtyToSys(pixmaps);
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}
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pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
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pPixmap->devKind = pExaPixmap->sys_pitch;
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pExaPixmap->offscreen = FALSE;
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}
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}
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/* Move back results of software rendering on system memory copy of mixed driver
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* pixmap (see exaPrepareAccessReg_mixed).
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*
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* Defer moving the destination back into the driver pixmap, to try and save
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* overhead on multiple consequent software fallbacks.
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*/
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void exaFinishAccess_mixed(PixmapPtr pPixmap, int index)
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{
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ExaPixmapPriv(pPixmap);
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if (pExaPixmap->pDamage && exaPixmapIsOffscreen(pPixmap)) {
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DamageRegionProcessPending(&pPixmap->drawable);
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if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {
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ExaScreenPriv(pPixmap->drawable.pScreen);
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if (pExaScr->deferred_mixed_pixmap &&
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pExaScr->deferred_mixed_pixmap != pPixmap)
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exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap);
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pExaScr->deferred_mixed_pixmap = pPixmap;
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pPixmap->devKind = pExaPixmap->fb_pitch;
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} else
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exaMoveInPixmap_mixed(pPixmap);
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}
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}
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