271 lines
9.0 KiB
C
271 lines
9.0 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 =
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pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp,
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&new_pitch);
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paddedWidth = pExaPixmap->fb_pitch = new_pitch;
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}
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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 =
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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, 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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!exaPixmapHasGpuCopy(pixmaps[i].pPix)) {
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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 && exaPixmapHasGpuCopy(pPixmap)) {
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ExaScreenPriv(pPixmap->drawable.pScreen);
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/* This pitch is needed for proper acceleration. For some reason
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* there are pixmaps without pDamage and a bad fb_pitch value.
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* So setting devKind when only exaPixmapHasGpuCopy() is true
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* causes corruption. Pixmaps without pDamage are not migrated
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* and should have a valid devKind at all times, so that's why this
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* isn't causing problems. Pixmaps have their gpu pitch set the
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* first time in the MPH call from exaCreateDriverPixmap_mixed().
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*/
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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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!pixmaps[i].as_dst && !pixmaps[i].pReg)
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pExaScr->deferred_mixed_pixmap = NULL;
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}
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pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(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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void
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exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure)
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{
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PixmapPtr pPixmap = closure;
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ExaPixmapPriv(pPixmap);
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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 subsequent software fallbacks.
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*/
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if (!pExaPixmap->use_gpu_copy && exaPixmapHasGpuCopy(pPixmap)) {
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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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}
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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 exaDamageReport_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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ExaPixmapPriv(pPixmap);
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Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
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Bool success;
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success = ExaDoPrepareAccess(pPixmap, index);
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if (success && has_gpu_copy && pExaPixmap->pDamage) {
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/* You cannot do accelerated operations while a buffer is mapped. */
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exaFinishAccess(&pPixmap->drawable, index);
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/* Update the gpu view of both deferred destination pixmaps and of
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* source pixmaps that were migrated with a bounding region.
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*/
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exaMoveInPixmap_mixed(pPixmap);
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success = ExaDoPrepareAccess(pPixmap, index);
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if (success) {
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/* We have a gpu pixmap that can be accessed, we don't need the cpu
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* copy anymore. Drivers that prefer DFS, should fail prepare
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* access.
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*/
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DamageDestroy(pExaPixmap->pDamage);
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pExaPixmap->pDamage = NULL;
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free(pExaPixmap->sys_ptr);
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pExaPixmap->sys_ptr = NULL;
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return;
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}
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}
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if (!success) {
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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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}
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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 &&
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(has_gpu_copy || !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(exaDamageReport_mixed, NULL,
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DamageReportNonEmpty, TRUE,
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pPixmap->drawable.pScreen,
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pPixmap);
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if (pExaPixmap->pDamage) {
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DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
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/* This ensures that pending damage reflects the current
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* operation. This is used by exa to optimize migration.
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*/
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DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
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}
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if (has_gpu_copy) {
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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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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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}
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else if (has_gpu_copy)
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exaCopyDirtyToSys(pixmaps);
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pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
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pPixmap->devKind = pExaPixmap->sys_pitch;
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pExaPixmap->use_gpu_copy = FALSE;
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}
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}
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