/**
* exaCreatePixmap() creates a new pixmap.
*
* If width and height are 0, this won't be a full-fledged pixmap and it will
* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
* ModifyPixmapHeader() would break migration. These types of pixmaps are used
* for scratch pixmaps, or to represent the visible screen.
*/
static PixmapPtr
exaCreatePixmap(ScreenPtr pScreen, int w, int h, int depth)
{
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
int bpp;
ExaScreenPriv(pScreen);
if (w > 32767 || h > 32767)
return NullPixmap;
pPixmap = fbCreatePixmap (pScreen, w, h, depth);
if (!pPixmap)
return NULL;
pExaPixmap = ExaGetPixmapPriv(pPixmap);
bpp = pPixmap->drawable.bitsPerPixel;
/* Glyphs have w/h equal to zero, and may not be migrated. See exaGlyphs. */
if (!w || !h)
pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
else
pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
pExaPixmap->area = NULL;
pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
pExaPixmap->sys_pitch = pPixmap->devKind;
pExaPixmap->fb_ptr = NULL;
if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1)
pExaPixmap->fb_pitch = (1 << (exaLog2(w - 1) + 1)) * bpp / 8;
else
pExaPixmap->fb_pitch = w * bpp / 8;
pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch,
pExaScr->info->pixmapPitchAlign);
pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
if (pExaPixmap->fb_pitch > 131071) {
fbDestroyPixmap(pPixmap);
return NULL;
}
/* Set up damage tracking */
pExaPixmap->pDamage = DamageCreate (NULL, NULL, DamageReportNone, TRUE,
pScreen, pPixmap);
if (pExaPixmap->pDamage == NULL) {
fbDestroyPixmap (pPixmap);
return NULL;
}
DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
/* None of the pixmap bits are valid initially */
REGION_NULL(pScreen, &pExaPixmap->validReg);
return pPixmap;
}
Bool
saa_add_damage(PixmapPtr pixmap)
{
ScreenPtr pScreen = pixmap->drawable.pScreen;
struct saa_pixmap *spix = saa_get_saa_pixmap(pixmap);
if (spix->damage)
return TRUE;
spix->damage = DamageCreate(saa_report_damage, NULL,
DamageReportRawRegion, TRUE, pScreen, pixmap);
if (!spix->damage)
return FALSE;
DamageRegister(&pixmap->drawable, spix->damage);
DamageSetReportAfterOp(spix->damage, TRUE);
return TRUE;
}
/**
* exaCreatePixmap() creates a new pixmap.
*
* If width and height are 0, this won't be a full-fledged pixmap and it will
* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
* ModifyPixmapHeader() would break migration. These types of pixmaps are used
* for scratch pixmaps, or to represent the visible screen.
*/
PixmapPtr
exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,
unsigned usage_hint)
{
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
BoxRec box;
int bpp;
ExaScreenPriv(pScreen);
if (w > 32767 || h > 32767)
return NullPixmap;
swap(pExaScr, pScreen, CreatePixmap);
pPixmap = pScreen->CreatePixmap(pScreen, w, h, depth, usage_hint);
swap(pExaScr, pScreen, CreatePixmap);
if (!pPixmap)
return NULL;
pExaPixmap = ExaGetPixmapPriv(pPixmap);
pExaPixmap->driverPriv = NULL;
bpp = pPixmap->drawable.bitsPerPixel;
pExaPixmap->driverPriv = NULL;
/* Scratch pixmaps may have w/h equal to zero, and may not be
* migrated.
*/
if (!w || !h)
pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
else
pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
pExaPixmap->sys_pitch = pPixmap->devKind;
pPixmap->devPrivate.ptr = NULL;
pExaPixmap->use_gpu_copy = FALSE;
pExaPixmap->fb_ptr = NULL;
exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
if (pExaPixmap->fb_pitch > 131071) {
swap(pExaScr, pScreen, DestroyPixmap);
pScreen->DestroyPixmap(pPixmap);
swap(pExaScr, pScreen, DestroyPixmap);
return NULL;
}
/* Set up damage tracking */
pExaPixmap->pDamage = DamageCreate(NULL, NULL,
DamageReportNone, TRUE,
pScreen, pPixmap);
if (pExaPixmap->pDamage == NULL) {
swap(pExaScr, pScreen, DestroyPixmap);
pScreen->DestroyPixmap(pPixmap);
swap(pExaScr, pScreen, DestroyPixmap);
return NULL;
}
DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
/* This ensures that pending damage reflects the current operation. */
/* This is used by exa to optimize migration. */
DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
pExaPixmap->area = NULL;
/* We set the initial pixmap as completely valid for a simple reason.
* Imagine a 1000x1000 pixmap, it has 1 million pixels, 250000 of which
* could form single pixel rects as part of a region. Setting the complete region
* as valid is a natural defragmentation of the region.
*/
box.x1 = 0;
box.y1 = 0;
box.x2 = w;
box.y2 = h;
RegionInit(&pExaPixmap->validSys, &box, 0);
RegionInit(&pExaPixmap->validFB, &box, 0);
exaSetAccelBlock(pExaScr, pExaPixmap, w, h, bpp);
/* During a fallback we must prepare access. */
if (pExaScr->fallback_counter)
exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);
return pPixmap;
}
/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we
* use the DownloadFromScreen hook to retrieve contents to a copy in system
* memory, perform software rendering on that and move back the results with the
* UploadToScreen hook (see exaDamageReport_mixed).
*/
void
exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
{
ExaPixmapPriv(pPixmap);
Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
Bool success;
success = ExaDoPrepareAccess(pPixmap, index);
if (success && has_gpu_copy && pExaPixmap->pDamage) {
/* You cannot do accelerated operations while a buffer is mapped. */
exaFinishAccess(&pPixmap->drawable, index);
/* Update the gpu view of both deferred destination pixmaps and of
* source pixmaps that were migrated with a bounding region.
*/
exaMoveInPixmap_mixed(pPixmap);
success = ExaDoPrepareAccess(pPixmap, index);
if (success) {
/* We have a gpu pixmap that can be accessed, we don't need the cpu
* copy anymore. Drivers that prefer DFS, should fail prepare
* access.
*/
DamageDestroy(pExaPixmap->pDamage);
pExaPixmap->pDamage = NULL;
free(pExaPixmap->sys_ptr);
pExaPixmap->sys_ptr = NULL;
return;
}
}
if (!success) {
ExaMigrationRec pixmaps[1];
/* Do we need to allocate our system buffer? */
if (!pExaPixmap->sys_ptr) {
pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch *
pPixmap->drawable.height);
if (!pExaPixmap->sys_ptr)
FatalError("EXA: malloc failed for size %d bytes\n",
pExaPixmap->sys_pitch * pPixmap->drawable.height);
}
if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
}
else {
pixmaps[0].as_dst = FALSE;
pixmaps[0].as_src = TRUE;
}
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = pReg;
if (!pExaPixmap->pDamage &&
(has_gpu_copy || !exaPixmapIsPinned(pPixmap))) {
Bool as_dst = pixmaps[0].as_dst;
/* Set up damage tracking */
pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,
DamageReportNonEmpty, TRUE,
pPixmap->drawable.pScreen,
pPixmap);
if (pExaPixmap->pDamage) {
DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
/* This ensures that pending damage reflects the current
* operation. This is used by exa to optimize migration.
*/
DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
}
if (has_gpu_copy) {
exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
pPixmap->drawable.height);
/* We don't know which region of the destination will be damaged,
* have to assume all of it
*/
if (as_dst) {
pixmaps[0].as_dst = FALSE;
pixmaps[0].as_src = TRUE;
pixmaps[0].pReg = NULL;
}
exaCopyDirtyToSys(pixmaps);
}
if (as_dst)
exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
pPixmap->drawable.height);
}
else if (has_gpu_copy)
exaCopyDirtyToSys(pixmaps);
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
pPixmap->devKind = pExaPixmap->sys_pitch;
pExaPixmap->use_gpu_copy = FALSE;
}
}
static int
ProcDamageCreate (ClientPtr client)
{
DrawablePtr pDrawable;
DamageExtPtr pDamageExt;
DamageReportLevel level;
RegionPtr pRegion;
int rc;
REQUEST(xDamageCreateReq);
REQUEST_SIZE_MATCH(xDamageCreateReq);
LEGAL_NEW_RESOURCE(stuff->damage, client);
rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0,
DixGetAttrAccess|DixReadAccess);
if (rc != Success)
return rc;
switch (stuff->level) {
case XDamageReportRawRectangles:
level = DamageReportRawRegion;
break;
case XDamageReportDeltaRectangles:
level = DamageReportDeltaRegion;
break;
case XDamageReportBoundingBox:
level = DamageReportBoundingBox;
break;
case XDamageReportNonEmpty:
level = DamageReportNonEmpty;
break;
default:
client->errorValue = stuff->level;
return BadValue;
}
pDamageExt = malloc(sizeof (DamageExtRec));
if (!pDamageExt)
return BadAlloc;
pDamageExt->id = stuff->damage;
pDamageExt->drawable = stuff->drawable;
pDamageExt->pDrawable = pDrawable;
pDamageExt->level = level;
pDamageExt->pClient = client;
pDamageExt->pDamage = DamageCreate (DamageExtReport,
DamageExtDestroy,
level,
FALSE,
pDrawable->pScreen,
pDamageExt);
if (!pDamageExt->pDamage)
{
free(pDamageExt);
return BadAlloc;
}
if (!AddResource (stuff->damage, DamageExtType, (pointer) pDamageExt))
return BadAlloc;
DamageSetReportAfterOp (pDamageExt->pDamage, TRUE);
DamageRegister (pDamageExt->pDrawable, pDamageExt->pDamage);
if (pDrawable->type == DRAWABLE_WINDOW)
{
pRegion = &((WindowPtr) pDrawable)->borderClip;
DamageDamageRegion(pDrawable, pRegion);
}
return Success;
}
