int
ProcXFixesCombineRegion(ClientPtr client)
{
RegionPtr pSource1, pSource2, pDestination;
REQUEST(xXFixesCombineRegionReq);
REQUEST_SIZE_MATCH(xXFixesCombineRegionReq);
VERIFY_REGION(pSource1, stuff->source1, client, DixReadAccess);
VERIFY_REGION(pSource2, stuff->source2, client, DixReadAccess);
VERIFY_REGION(pDestination, stuff->destination, client, DixWriteAccess);
switch (stuff->xfixesReqType) {
case X_XFixesUnionRegion:
if (!RegionUnion(pDestination, pSource1, pSource2))
return BadAlloc;
break;
case X_XFixesIntersectRegion:
if (!RegionIntersect(pDestination, pSource1, pSource2))
return BadAlloc;
break;
case X_XFixesSubtractRegion:
if (!RegionSubtract(pDestination, pSource1, pSource2))
return BadAlloc;
break;
}
return Success;
}
void
miSegregateChildren(WindowPtr pWin, RegionPtr pReg, int depth)
{
WindowPtr pChild;
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
if (pChild->drawable.depth == depth)
RegionUnion(pReg, pReg, &pChild->borderClip);
if (pChild->firstChild)
miSegregateChildren(pChild, pReg, depth);
}
}
static void
shadowReportFunc(DamagePtr pDamage, RegionPtr pRegion, void *closure)
{
ScreenPtr pScreen = closure;
shadowBufPtr pBuf = (shadowBufPtr)
dixLookupPrivate(&pScreen->devPrivates, shadowScrPrivateKey);
/* Register the damaged region, use DamageReportNone below when we
* want to break BC below... */
RegionUnion(&pDamage->damage, &pDamage->damage, pRegion);
/*
* BC hack. In 7.0 and earlier several drivers would inspect the
* 'damage' member directly, so we have to keep it existing.
*/
RegionCopy(&pBuf->damage, pRegion);
}
int
ProcXFixesExpandRegion (ClientPtr client)
{
RegionPtr pSource, pDestination;
REQUEST (xXFixesExpandRegionReq);
BoxPtr pTmp;
BoxPtr pSrc;
int nBoxes;
int i;
REQUEST_SIZE_MATCH (xXFixesExpandRegionReq);
VERIFY_REGION(pSource, stuff->source, client, DixReadAccess);
VERIFY_REGION(pDestination, stuff->destination, client, DixWriteAccess);
nBoxes = RegionNumRects(pSource);
pSrc = RegionRects(pSource);
if (nBoxes)
{
pTmp = malloc(nBoxes * sizeof (BoxRec));
if (!pTmp)
return BadAlloc;
for (i = 0; i < nBoxes; i++)
{
pTmp[i].x1 = pSrc[i].x1 - stuff->left;
pTmp[i].x2 = pSrc[i].x2 + stuff->right;
pTmp[i].y1 = pSrc[i].y1 - stuff->top;
pTmp[i].y2 = pSrc[i].y2 + stuff->bottom;
}
RegionEmpty(pDestination);
for (i = 0; i < nBoxes; i++)
{
RegionRec r;
RegionInit(&r, &pTmp[i], 0);
RegionUnion(pDestination, pDestination, &r);
}
free(pTmp);
}
return Success;
}
static void
ExaSrcValidate(DrawablePtr pDrawable,
int x, int y, int width, int height, unsigned int subWindowMode)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv(pScreen);
PixmapPtr pPix = exaGetDrawablePixmap(pDrawable);
BoxRec box;
RegionRec reg;
RegionPtr dst;
int xoff, yoff;
if (pExaScr->srcPix == pPix)
dst = &pExaScr->srcReg;
else if (pExaScr->maskPix == pPix)
dst = &pExaScr->maskReg;
else
return;
exaGetDrawableDeltas(pDrawable, pPix, &xoff, &yoff);
box.x1 = x + xoff;
box.y1 = y + yoff;
box.x2 = box.x1 + width;
box.y2 = box.y1 + height;
RegionInit(®, &box, 1);
RegionUnion(dst, dst, ®);
RegionUninit(®);
if (pExaScr->SavedSourceValidate) {
swap(pExaScr, pScreen, SourceValidate);
pScreen->SourceValidate(pDrawable, x, y, width, height, subWindowMode);
swap(pExaScr, pScreen, SourceValidate);
}
}
static void
localFreeOffscreenArea(FBAreaPtr area)
{
FBManagerPtr offman;
FBLinkPtr pLink, pLinkPrev = NULL;
RegionRec FreedRegion;
ScreenPtr pScreen;
pScreen = area->pScreen;
offman = (FBManagerPtr) dixLookupPrivate(&pScreen->devPrivates,
xf86FBScreenKey);
pLink = offman->UsedAreas;
if (!pLink)
return;
while (&(pLink->area) != area) {
pLinkPrev = pLink;
pLink = pLink->next;
if (!pLink)
return;
}
/* put the area back into the pool */
RegionInit(&FreedRegion, &(pLink->area.box), 1);
RegionUnion(offman->FreeBoxes, offman->FreeBoxes, &FreedRegion);
RegionUninit(&FreedRegion);
if (pLinkPrev)
pLinkPrev->next = pLink->next;
else
offman->UsedAreas = pLink->next;
free(pLink);
offman->NumUsedAreas--;
SendCallFreeBoxCallbacks(offman);
}
static Bool
exaFillRegionSolid(DrawablePtr pDrawable, RegionPtr pRegion, Pixel pixel,
CARD32 planemask, CARD32 alu, Bool hasClientClip)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
ExaPixmapPriv(pPixmap);
int xoff, yoff;
Bool ret = FALSE;
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
RegionTranslate(pRegion, xoff, yoff);
if (pExaScr->fallback_counter || pExaPixmap->accel_blocked)
goto out;
if (pExaScr->do_migration) {
ExaMigrationRec pixmaps[1];
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = exaGCReadsDestination(pDrawable, planemask, FillSolid,
alu,
hasClientClip) ? NULL : pRegion;
exaDoMigration(pixmaps, 1, TRUE);
}
if (exaPixmapHasGpuCopy(pPixmap) &&
(*pExaScr->info->PrepareSolid) (pPixmap, alu, planemask, pixel)) {
int nbox;
BoxPtr pBox;
nbox = RegionNumRects(pRegion);
pBox = RegionRects(pRegion);
while (nbox--) {
(*pExaScr->info->Solid) (pPixmap, pBox->x1, pBox->y1, pBox->x2,
pBox->y2);
pBox++;
}
(*pExaScr->info->DoneSolid) (pPixmap);
exaMarkSync(pDrawable->pScreen);
if (pExaPixmap->pDamage &&
pExaPixmap->sys_ptr && pDrawable->type == DRAWABLE_PIXMAP &&
pDrawable->width == 1 && pDrawable->height == 1 &&
pDrawable->bitsPerPixel != 24) {
RegionPtr pending_damage = DamagePendingRegion(pExaPixmap->pDamage);
switch (pDrawable->bitsPerPixel) {
case 32:
*(CARD32 *) pExaPixmap->sys_ptr = pixel;
break;
case 16:
*(CARD16 *) pExaPixmap->sys_ptr = pixel;
break;
case 8:
case 4:
case 1:
*(CARD8 *) pExaPixmap->sys_ptr = pixel;
}
RegionUnion(&pExaPixmap->validSys, &pExaPixmap->validSys, pRegion);
RegionUnion(&pExaPixmap->validFB, &pExaPixmap->validFB, pRegion);
RegionSubtract(pending_damage, pending_damage, pRegion);
}
ret = TRUE;
}
out:
RegionTranslate(pRegion, -xoff, -yoff);
return ret;
}
static Bool
localResizeOffscreenArea(FBAreaPtr resize, int w, int h)
{
FBManagerPtr offman;
ScreenPtr pScreen;
BoxRec OrigArea;
RegionRec FreedReg;
FBAreaPtr area = NULL;
FBLinkPtr pLink, newLink, pLinkPrev = NULL;
pScreen = resize->pScreen;
offman = (FBManagerPtr) dixLookupPrivate(&pScreen->devPrivates,
xf86FBScreenKey);
/* find this link */
if (!(pLink = offman->UsedAreas))
return FALSE;
while (&(pLink->area) != resize) {
pLinkPrev = pLink;
pLink = pLink->next;
if (!pLink)
return FALSE;
}
OrigArea.x1 = resize->box.x1;
OrigArea.x2 = resize->box.x2;
OrigArea.y1 = resize->box.y1;
OrigArea.y2 = resize->box.y2;
/* if it's smaller, this is easy */
if ((w <= (resize->box.x2 - resize->box.x1)) &&
(h <= (resize->box.y2 - resize->box.y1))) {
RegionRec NewReg;
resize->box.x2 = resize->box.x1 + w;
resize->box.y2 = resize->box.y1 + h;
if ((resize->box.y2 == OrigArea.y2) && (resize->box.x2 == OrigArea.x2))
return TRUE;
RegionInit(&FreedReg, &OrigArea, 1);
RegionInit(&NewReg, &(resize->box), 1);
RegionSubtract(&FreedReg, &FreedReg, &NewReg);
RegionUnion(offman->FreeBoxes, offman->FreeBoxes, &FreedReg);
RegionUninit(&FreedReg);
RegionUninit(&NewReg);
SendCallFreeBoxCallbacks(offman);
return TRUE;
}
/* otherwise we remove the old region */
RegionInit(&FreedReg, &OrigArea, 1);
RegionUnion(offman->FreeBoxes, offman->FreeBoxes, &FreedReg);
/* remove the old link */
if (pLinkPrev)
pLinkPrev->next = pLink->next;
else
offman->UsedAreas = pLink->next;
/* and try to add a new one */
if ((area = AllocateArea(offman, w, h, resize->granularity,
resize->MoveAreaCallback,
resize->RemoveAreaCallback,
resize->devPrivate.ptr))) {
/* copy data over to our link and replace the new with old */
memcpy(resize, area, sizeof(FBArea));
pLinkPrev = NULL;
newLink = offman->UsedAreas;
while (&(newLink->area) != area) {
pLinkPrev = newLink;
newLink = newLink->next;
}
if (pLinkPrev)
pLinkPrev->next = newLink->next;
else
offman->UsedAreas = newLink->next;
pLink->next = offman->UsedAreas;
offman->UsedAreas = pLink;
free(newLink);
/* AllocateArea added one but we really only exchanged one */
offman->NumUsedAreas--;
}
else {
/* reinstate the old region */
RegionSubtract(offman->FreeBoxes, offman->FreeBoxes, &FreedReg);
RegionUninit(&FreedReg);
pLink->next = offman->UsedAreas;
offman->UsedAreas = pLink;
return FALSE;
}
RegionUninit(&FreedReg);
SendCallFreeBoxCallbacks(offman);
return TRUE;
}
static FBAreaPtr
AllocateArea(FBManagerPtr offman,
int w, int h,
int granularity,
MoveAreaCallbackProcPtr moveCB,
RemoveAreaCallbackProcPtr removeCB, void *privData)
{
ScreenPtr pScreen = offman->pScreen;
FBLinkPtr link = NULL;
FBAreaPtr area = NULL;
RegionRec NewReg;
int i, x = 0, num;
BoxPtr boxp;
if (granularity <= 1)
granularity = 0;
boxp = RegionRects(offman->FreeBoxes);
num = RegionNumRects(offman->FreeBoxes);
/* look through the free boxes */
for (i = 0; i < num; i++, boxp++) {
x = boxp->x1;
if (granularity > 1)
x = ((x + granularity - 1) / granularity) * granularity;
if (((boxp->y2 - boxp->y1) < h) || ((boxp->x2 - x) < w))
continue;
link = malloc(sizeof(FBLink));
if (!link)
return NULL;
area = &(link->area);
link->next = offman->UsedAreas;
offman->UsedAreas = link;
offman->NumUsedAreas++;
break;
}
/* try to boot a removeable one out if we are not expendable ourselves */
if (!area && !removeCB) {
link = offman->UsedAreas;
while (link) {
if (!link->area.RemoveAreaCallback) {
link = link->next;
continue;
}
boxp = &(link->area.box);
x = boxp->x1;
if (granularity > 1)
x = ((x + granularity - 1) / granularity) * granularity;
if (((boxp->y2 - boxp->y1) < h) || ((boxp->x2 - x) < w)) {
link = link->next;
continue;
}
/* bye, bye */
(*link->area.RemoveAreaCallback) (&link->area);
RegionInit(&NewReg, &(link->area.box), 1);
RegionUnion(offman->FreeBoxes, offman->FreeBoxes, &NewReg);
RegionUninit(&NewReg);
area = &(link->area);
break;
}
}
if (area) {
area->pScreen = pScreen;
area->granularity = granularity;
area->box.x1 = x;
area->box.x2 = x + w;
area->box.y1 = boxp->y1;
area->box.y2 = boxp->y1 + h;
area->MoveAreaCallback = moveCB;
area->RemoveAreaCallback = removeCB;
area->devPrivate.ptr = privData;
RegionInit(&NewReg, &(area->box), 1);
RegionSubtract(offman->FreeBoxes, offman->FreeBoxes, &NewReg);
RegionUninit(&NewReg);
}
return area;
}
/**
* 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), int fallback_index,
void (*sync) (ScreenPtr pScreen))
{
PixmapPtr pPixmap = migrate->pPix;
ExaPixmapPriv(pPixmap);
RegionPtr damage = DamageRegion(pExaPixmap->pDamage);
RegionRec CopyReg;
Bool save_use_gpu_copy;
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 (pExaPixmap->use_gpu_copy) {
RegionUnion(&pExaPixmap->validFB, &pExaPixmap->validFB, damage);
RegionSubtract(&pExaPixmap->validSys, &pExaPixmap->validSys, damage);
}
else {
RegionUnion(&pExaPixmap->validSys, &pExaPixmap->validSys, damage);
RegionSubtract(&pExaPixmap->validFB, &pExaPixmap->validFB, damage);
}
RegionEmpty(damage);
/* Copy bits valid in source but not in destination */
RegionNull(&CopyReg);
RegionSubtract(&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 (RegionNil(pending_damage)) {
static Bool firsttime = TRUE;
if (firsttime) {
ErrorF("%s: Pending damage region empty!\n", __func__);
firsttime = FALSE;
}
}
#endif
/* Try to prevent destination valid region from growing too many
* rects by filling it up to the extents of the union of the
* destination valid region and the pending damage region.
*/
if (RegionNumRects(pValidDst) > 10) {
BoxRec box;
BoxPtr pValidExt, pDamageExt;
RegionRec closure;
pValidExt = RegionExtents(pValidDst);
pDamageExt = RegionExtents(pending_damage);
box.x1 = min(pValidExt->x1, pDamageExt->x1);
box.y1 = min(pValidExt->y1, pDamageExt->y1);
box.x2 = max(pValidExt->x2, pDamageExt->x2);
box.y2 = max(pValidExt->y2, pDamageExt->y2);
RegionInit(&closure, &box, 0);
RegionIntersect(&CopyReg, &CopyReg, &closure);
}
else
RegionIntersect(&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)
RegionSubtract(&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)
RegionIntersect(&CopyReg, &CopyReg, migrate->pReg);
}
pBox = RegionRects(&CopyReg);
nbox = RegionNumRects(&CopyReg);
save_use_gpu_copy = pExaPixmap->use_gpu_copy;
save_pitch = pPixmap->devKind;
pExaPixmap->use_gpu_copy = 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, fallback_index);
access_prepared = TRUE;
}
if (fallback_index == EXA_PREPARE_DEST) {
exaMemcpyBox(pPixmap, pBox,
pExaPixmap->sys_ptr, pExaPixmap->sys_pitch,
pPixmap->devPrivate.ptr, pPixmap->devKind);
}
else {
exaMemcpyBox(pPixmap, pBox,
pPixmap->devPrivate.ptr, pPixmap->devKind,
pExaPixmap->sys_ptr, pExaPixmap->sys_pitch);
}
}
else
need_sync = TRUE;
pBox++;
}
pExaPixmap->use_gpu_copy = save_use_gpu_copy;
pPixmap->devKind = save_pitch;
/* Try to prevent source valid region from growing too many rects by
* removing parts of it which are also in the destination valid region.
* Removing anything beyond that would lead to data loss.
*/
if (RegionNumRects(pValidSrc) > 20)
RegionSubtract(pValidSrc, pValidSrc, pValidDst);
/* The copied bits are now valid in destination */
RegionUnion(pValidDst, pValidDst, &CopyReg);
RegionUninit(&CopyReg);
if (access_prepared)
exaFinishAccess(&pPixmap->drawable, fallback_index);
else if (need_sync && sync)
sync(pPixmap->drawable.pScreen);
}
/*ARGSUSED*/
int
miValidateTree (
WindowPtr pParent, /* Parent to validate */
WindowPtr pChild, /* First child of pParent that was
* affected */
VTKind kind /* What kind of configuration caused call */
)
{
RegionRec totalClip; /* Total clipping region available to
* the marked children. pParent's clipList
* merged with the borderClips of all
* the marked children. */
RegionRec childClip; /* The new borderClip for the current
* child */
RegionRec childUnion; /* the space covered by borderSize for
* all marked children */
RegionRec exposed; /* For intermediate calculations */
ScreenPtr pScreen;
WindowPtr pWin;
Bool overlap;
int viewvals;
Bool forward;
pScreen = pParent->drawable.pScreen;
if (pChild == NullWindow)
pChild = pParent->firstChild;
RegionNull(&childClip);
RegionNull(&exposed);
/*
* compute the area of the parent window occupied
* by the marked children + the parent itself. This
* is the area which can be divied up among the marked
* children in their new configuration.
*/
RegionNull(&totalClip);
viewvals = 0;
if (RegionBroken(&pParent->clipList) &&
!RegionBroken(&pParent->borderClip))
{
kind = VTBroken;
/*
* When rebuilding clip lists after out of memory,
* assume everything is busted.
*/
forward = TRUE;
RegionCopy(&totalClip, &pParent->borderClip);
RegionIntersect(&totalClip, &totalClip, &pParent->winSize);
for (pWin = pParent->firstChild; pWin != pChild; pWin = pWin->nextSib)
{
if (pWin->viewable && !TreatAsTransparent (pWin))
RegionSubtract(&totalClip, &totalClip, &pWin->borderSize);
}
for (pWin = pChild; pWin; pWin = pWin->nextSib)
if (pWin->valdata && pWin->viewable)
viewvals++;
RegionEmpty(&pParent->clipList);
}
else
{
if ((pChild->drawable.y < pParent->lastChild->drawable.y) ||
((pChild->drawable.y == pParent->lastChild->drawable.y) &&
(pChild->drawable.x < pParent->lastChild->drawable.x)))
{
forward = TRUE;
for (pWin = pChild; pWin; pWin = pWin->nextSib)
{
if (pWin->valdata)
{
RegionPtr pBorderClip = &pWin->borderClip;
#ifdef COMPOSITE
if (pWin->redirectDraw != RedirectDrawNone && miGetRedirectBorderClipProc)
pBorderClip = (*miGetRedirectBorderClipProc)(pWin);
#endif
RegionAppend(&totalClip, pBorderClip );
if (pWin->viewable)
viewvals++;
}
}
}
else
{
forward = FALSE;
pWin = pParent->lastChild;
while (1)
{
if (pWin->valdata)
{
RegionPtr pBorderClip = &pWin->borderClip;
#ifdef COMPOSITE
if (pWin->redirectDraw != RedirectDrawNone && miGetRedirectBorderClipProc)
pBorderClip = (*miGetRedirectBorderClipProc)(pWin);
#endif
RegionAppend(&totalClip, pBorderClip );
if (pWin->viewable)
viewvals++;
}
if (pWin == pChild)
break;
pWin = pWin->prevSib;
}
}
RegionValidate(&totalClip, &overlap);
}
/*
* Now go through the children of the root and figure their new
* borderClips from the totalClip, passing that off to miComputeClips
* to handle recursively. Once that's done, we remove the child
* from the totalClip to clip any siblings below it.
*/
overlap = TRUE;
if (kind != VTStack)
{
RegionUnion(&totalClip, &totalClip, &pParent->clipList);
if (viewvals > 1)
{
/*
* precompute childUnion to discover whether any of them
* overlap. This seems redundant, but performance studies
* have demonstrated that the cost of this loop is
* lower than the cost of multiple Subtracts in the
* loop below.
*/
RegionNull(&childUnion);
if (forward)
{
for (pWin = pChild; pWin; pWin = pWin->nextSib)
if (pWin->valdata && pWin->viewable && !TreatAsTransparent (pWin))
RegionAppend(&childUnion,
&pWin->borderSize);
}
else
{
pWin = pParent->lastChild;
while (1)
{
if (pWin->valdata && pWin->viewable && !TreatAsTransparent (pWin))
RegionAppend(&childUnion,
&pWin->borderSize);
if (pWin == pChild)
break;
pWin = pWin->prevSib;
}
}
RegionValidate(&childUnion, &overlap);
if (overlap)
RegionUninit(&childUnion);
}
}
for (pWin = pChild;
pWin != NullWindow;
pWin = pWin->nextSib)
{
if (pWin->viewable) {
if (pWin->valdata) {
RegionIntersect(&childClip,
&totalClip,
&pWin->borderSize);
miComputeClips (pWin, pScreen, &childClip, kind, &exposed);
if (overlap && !TreatAsTransparent (pWin))
{
RegionSubtract(&totalClip,
&totalClip,
&pWin->borderSize);
}
} else if (pWin->visibility == VisibilityNotViewable) {
miTreeObscured(pWin);
}
} else {
if (pWin->valdata) {
RegionEmpty(&pWin->clipList);
if (pScreen->ClipNotify)
(* pScreen->ClipNotify) (pWin, 0, 0);
RegionEmpty(&pWin->borderClip);
pWin->valdata = NULL;
}
}
}
RegionUninit(&childClip);
if (!overlap)
{
RegionSubtract(&totalClip, &totalClip, &childUnion);
RegionUninit(&childUnion);
}
RegionNull(&pParent->valdata->after.exposed);
RegionNull(&pParent->valdata->after.borderExposed);
/*
* each case below is responsible for updating the
* clipList and serial number for the parent window
*/
switch (kind) {
case VTStack:
break;
default:
/*
* totalClip contains the new clipList for the parent. Figure out
* exposures and obscures as per miComputeClips and reset the parent's
* clipList.
*/
RegionSubtract(&pParent->valdata->after.exposed,
&totalClip, &pParent->clipList);
/* fall through */
case VTMap:
RegionCopy(&pParent->clipList, &totalClip);
pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
break;
}
RegionUninit(&totalClip);
RegionUninit(&exposed);
if (pScreen->ClipNotify)
(*pScreen->ClipNotify) (pParent, 0, 0);
return 1;
}
static int
RegionOperate(ClientPtr client,
WindowPtr pWin,
int kind,
RegionPtr *destRgnp,
RegionPtr srcRgn, int op, int xoff, int yoff, CreateDftPtr create)
{
if (srcRgn && (xoff || yoff))
RegionTranslate(srcRgn, xoff, yoff);
if (!pWin->parent) {
if (srcRgn)
RegionDestroy(srcRgn);
return Success;
}
/* May/30/2001:
* The shape.PS specs say if src is None, existing shape is to be
* removed (and so the op-code has no meaning in such removal);
* see shape.PS, page 3, ShapeMask.
*/
if (srcRgn == NULL) {
if (*destRgnp != NULL) {
RegionDestroy(*destRgnp);
*destRgnp = 0;
/* go on to remove shape and generate ShapeNotify */
}
else {
/* May/30/2001:
* The target currently has no shape in effect, so nothing to
* do here. The specs say that ShapeNotify is generated whenever
* the client region is "modified"; since no modification is done
* here, we do not generate that event. The specs does not say
* "it is an error to request removal when there is no shape in
* effect", so we return good status.
*/
return Success;
}
}
else
switch (op) {
case ShapeSet:
if (*destRgnp)
RegionDestroy(*destRgnp);
*destRgnp = srcRgn;
srcRgn = 0;
break;
case ShapeUnion:
if (*destRgnp)
RegionUnion(*destRgnp, *destRgnp, srcRgn);
break;
case ShapeIntersect:
if (*destRgnp)
RegionIntersect(*destRgnp, *destRgnp, srcRgn);
else {
*destRgnp = srcRgn;
srcRgn = 0;
}
break;
case ShapeSubtract:
if (!*destRgnp)
*destRgnp = (*create) (pWin);
RegionSubtract(*destRgnp, *destRgnp, srcRgn);
break;
case ShapeInvert:
if (!*destRgnp)
*destRgnp = RegionCreate((BoxPtr) 0, 0);
else
RegionSubtract(*destRgnp, srcRgn, *destRgnp);
break;
default:
client->errorValue = op;
return BadValue;
}
if (srcRgn)
RegionDestroy(srcRgn);
(*pWin->drawable.pScreen->SetShape) (pWin, kind);
SendShapeNotify(pWin, kind);
return Success;
}
void
miSlideAndSizeWindow(WindowPtr pWin,
int x, int y,
unsigned int w, unsigned int h, WindowPtr pSib)
{
WindowPtr pParent;
Bool WasViewable = (Bool) (pWin->viewable);
unsigned short width = pWin->drawable.width, height = pWin->drawable.height;
short oldx = pWin->drawable.x, oldy = pWin->drawable.y;
int bw = wBorderWidth(pWin);
short dw, dh;
DDXPointRec oldpt;
RegionPtr oldRegion = NULL;
Bool anyMarked = FALSE;
ScreenPtr pScreen;
WindowPtr pFirstChange;
WindowPtr pChild;
RegionPtr gravitate[StaticGravity + 1];
unsigned g;
int nx, ny; /* destination x,y */
int newx, newy; /* new inner window position */
RegionPtr pRegion = NULL;
RegionPtr destClip; /* portions of destination already written */
RegionPtr oldWinClip = NULL; /* old clip list for window */
RegionPtr borderVisible = NullRegion; /* visible area of the border */
Bool shrunk = FALSE; /* shrunk in an inner dimension */
Bool moved = FALSE; /* window position changed */
WindowPtr pLayerWin;
/* if this is a root window, can't be resized */
if (!(pParent = pWin->parent))
return;
pScreen = pWin->drawable.pScreen;
newx = pParent->drawable.x + x + bw;
newy = pParent->drawable.y + y + bw;
if (WasViewable) {
anyMarked = FALSE;
/*
* save the visible region of the window
*/
oldRegion = RegionCreate(NullBox, 1);
RegionCopy(oldRegion, &pWin->winSize);
/*
* categorize child windows into regions to be moved
*/
for (g = 0; g <= StaticGravity; g++)
gravitate[g] = (RegionPtr) NULL;
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
g = pChild->winGravity;
if (g != UnmapGravity) {
if (!gravitate[g])
gravitate[g] = RegionCreate(NullBox, 1);
RegionUnion(gravitate[g], gravitate[g], &pChild->borderClip);
}
else {
UnmapWindow(pChild, TRUE);
anyMarked = TRUE;
}
}
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
oldWinClip = NULL;
if (pWin->bitGravity != ForgetGravity) {
oldWinClip = RegionCreate(NullBox, 1);
RegionCopy(oldWinClip, &pWin->clipList);
}
/*
* if the window is changing size, borderExposed
* can't be computed correctly without some help.
*/
if (pWin->drawable.height > h || pWin->drawable.width > w)
shrunk = TRUE;
if (newx != oldx || newy != oldy)
moved = TRUE;
if ((pWin->drawable.height != h || pWin->drawable.width != w) &&
HasBorder(pWin)) {
borderVisible = RegionCreate(NullBox, 1);
/* for tiled borders, we punt and draw the whole thing */
if (pWin->borderIsPixel || !moved) {
if (shrunk || moved)
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
else
RegionCopy(borderVisible, &pWin->borderClip);
}
}
}
pWin->origin.x = x + bw;
pWin->origin.y = y + bw;
pWin->drawable.height = h;
pWin->drawable.width = w;
x = pWin->drawable.x = newx;
y = pWin->drawable.y = newy;
SetWinSize(pWin);
SetBorderSize(pWin);
dw = (int) w - (int) width;
dh = (int) h - (int) height;
ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);
/* let the hardware adjust background and border pixmaps, if any */
(*pScreen->PositionWindow) (pWin, x, y);
pFirstChange = MoveWindowInStack(pWin, pSib);
if (WasViewable) {
pRegion = RegionCreate(NullBox, 1);
if (pLayerWin == pWin)
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pFirstChange,
NULL);
else
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pLayerWin,
NULL);
if (pWin->valdata) {
pWin->valdata->before.resized = TRUE;
pWin->valdata->before.borderVisible = borderVisible;
}
if (anyMarked)
(*pScreen->ValidateTree) (pLayerWin->parent, pFirstChange, VTOther);
/*
* the entire window is trashed unless bitGravity
* recovers portions of it
*/
RegionCopy(&pWin->valdata->after.exposed, &pWin->clipList);
}
GravityTranslate(x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);
if (WasViewable) {
/* avoid the border */
if (HasBorder(pWin)) {
int offx, offy, dx, dy;
/* kruft to avoid double translates for each gravity */
offx = 0;
offy = 0;
for (g = 0; g <= StaticGravity; g++) {
if (!gravitate[g])
continue;
/* align winSize to gravitate[g].
* winSize is in new coordinates,
* gravitate[g] is still in old coordinates */
GravityTranslate(x, y, oldx, oldy, dw, dh, g, &nx, &ny);
dx = (oldx - nx) - offx;
dy = (oldy - ny) - offy;
if (dx || dy) {
RegionTranslate(&pWin->winSize, dx, dy);
offx += dx;
offy += dy;
}
RegionIntersect(gravitate[g], gravitate[g], &pWin->winSize);
}
/* get winSize back where it belongs */
if (offx || offy)
RegionTranslate(&pWin->winSize, -offx, -offy);
}
/*
* add screen bits to the appropriate bucket
*/
if (oldWinClip) {
/*
* clip to new clipList
*/
RegionCopy(pRegion, oldWinClip);
RegionTranslate(pRegion, nx - oldx, ny - oldy);
RegionIntersect(oldWinClip, pRegion, &pWin->clipList);
/*
* don't step on any gravity bits which will be copied after this
* region. Note -- this assumes that the regions will be copied
* in gravity order.
*/
for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {
if (gravitate[g])
RegionSubtract(oldWinClip, oldWinClip, gravitate[g]);
}
RegionTranslate(oldWinClip, oldx - nx, oldy - ny);
g = pWin->bitGravity;
if (!gravitate[g])
gravitate[g] = oldWinClip;
else {
RegionUnion(gravitate[g], gravitate[g], oldWinClip);
RegionDestroy(oldWinClip);
}
}
/*
* move the bits on the screen
*/
destClip = NULL;
for (g = 0; g <= StaticGravity; g++) {
if (!gravitate[g])
continue;
GravityTranslate(x, y, oldx, oldy, dw, dh, g, &nx, &ny);
oldpt.x = oldx + (x - nx);
oldpt.y = oldy + (y - ny);
/* Note that gravitate[g] is *translated* by CopyWindow */
/* only copy the remaining useful bits */
RegionIntersect(gravitate[g], gravitate[g], oldRegion);
/* clip to not overwrite already copied areas */
if (destClip) {
RegionTranslate(destClip, oldpt.x - x, oldpt.y - y);
RegionSubtract(gravitate[g], gravitate[g], destClip);
RegionTranslate(destClip, x - oldpt.x, y - oldpt.y);
}
/* and move those bits */
if (oldpt.x != x || oldpt.y != y
#ifdef COMPOSITE
|| pWin->redirectDraw
#endif
) {
(*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt,
gravitate[g]);
}
/* remove any overwritten bits from the remaining useful bits */
RegionSubtract(oldRegion, oldRegion, gravitate[g]);
/*
* recompute exposed regions of child windows
*/
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
if (pChild->winGravity != g)
continue;
RegionIntersect(pRegion, &pChild->borderClip, gravitate[g]);
TraverseTree(pChild, miRecomputeExposures, (void *) pRegion);
}
/*
* remove the successfully copied regions of the
* window from its exposed region
*/
if (g == pWin->bitGravity)
RegionSubtract(&pWin->valdata->after.exposed,
&pWin->valdata->after.exposed, gravitate[g]);
if (!destClip)
destClip = gravitate[g];
else {
RegionUnion(destClip, destClip, gravitate[g]);
RegionDestroy(gravitate[g]);
}
}
RegionDestroy(oldRegion);
RegionDestroy(pRegion);
if (destClip)
RegionDestroy(destClip);
if (anyMarked)
(*pScreen->HandleExposures) (pLayerWin->parent);
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, pFirstChange,
VTOther);
}
if (pWin->realized)
WindowsRestructured();
}
void
miWindowExposures(WindowPtr pWin, RegionPtr prgn, RegionPtr other_exposed)
{
RegionPtr exposures = prgn;
if ((prgn && !RegionNil(prgn)) ||
(exposures && !RegionNil(exposures)) || other_exposed) {
RegionRec expRec;
int clientInterested;
/*
* Restore from backing-store FIRST.
*/
clientInterested =
(pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask;
if (other_exposed) {
if (exposures) {
RegionUnion(other_exposed, exposures, other_exposed);
if (exposures != prgn)
RegionDestroy(exposures);
}
exposures = other_exposed;
}
if (clientInterested && exposures &&
(RegionNumRects(exposures) > RECTLIMIT)) {
/*
* If we have LOTS of rectangles, we decide to take the extents
* and force an exposure on that. This should require much less
* work overall, on both client and server. This is cheating, but
* isn't prohibited by the protocol ("spontaneous combustion" :-).
*/
BoxRec box;
box = *RegionExtents(exposures);
if (exposures == prgn) {
exposures = &expRec;
RegionInit(exposures, &box, 1);
RegionReset(prgn, &box);
}
else {
RegionReset(exposures, &box);
RegionUnion(prgn, prgn, exposures);
}
/* miPaintWindow doesn't clip, so we have to */
RegionIntersect(prgn, prgn, &pWin->clipList);
}
if (prgn && !RegionNil(prgn))
miPaintWindow(pWin, prgn, PW_BACKGROUND);
if (clientInterested && exposures && !RegionNil(exposures))
miSendExposures(pWin, exposures,
pWin->drawable.x, pWin->drawable.y);
if (exposures == &expRec) {
RegionUninit(exposures);
}
else if (exposures && exposures != prgn && exposures != other_exposed)
RegionDestroy(exposures);
if (prgn)
RegionEmpty(prgn);
}
else if (exposures && exposures != prgn)
RegionDestroy(exposures);
}
int
draw_item_pack(PixmapPtr pix, rdpPixmapRec *priv)
{
struct rdp_draw_item *di;
struct rdp_draw_item *di_prev;
#if 1
/* look for repeating draw types */
if (priv->draw_item_head != 0)
{
if (priv->draw_item_head->next != 0)
{
di_prev = priv->draw_item_head;
di = priv->draw_item_head->next;
while (di != 0)
{
if ((di_prev->type == RDI_IMGLL) && (di->type == RDI_IMGLL))
{
LLOGLN(10, ("draw_item_pack: packing RDI_IMGLL"));
RegionUnion(di_prev->reg, di_prev->reg, di->reg);
draw_item_remove(priv, di);
di = di_prev->next;
}
else if ((di_prev->type == RDI_IMGLY) && (di->type == RDI_IMGLY))
{
LLOGLN(10, ("draw_item_pack: packing RDI_IMGLY"));
RegionUnion(di_prev->reg, di_prev->reg, di->reg);
draw_item_remove(priv, di);
di = di_prev->next;
}
else
{
di_prev = di;
di = di_prev->next;
}
}
}
}
#endif
#if 1
/* subtract regions */
if (priv->draw_item_tail != 0)
{
if (priv->draw_item_tail->prev != 0)
{
di = priv->draw_item_tail;
while (di->prev != 0)
{
/* skip subtract flag
* draw items like line can't be used to clear(subtract) previous
* draw items since they are not opaque
* eg they can not be the 'S' in 'D = M - S'
* the region for line draw items is the clip region */
if ((di->flags & 1) == 0)
{
di_prev = di->prev;
while (di_prev != 0)
{
/* D = M - S */
RegionSubtract(di_prev->reg, di_prev->reg, di->reg);
di_prev = di_prev->prev;
}
}
di = di->prev;
}
}
}
#endif
#if 1
/* remove draw items with empty regions */
di = priv->draw_item_head;
di_prev = 0;
while (di != 0)
{
if (!RegionNotEmpty(di->reg))
{
LLOGLN(10, ("draw_item_pack: removing empty item type %d", di->type));
draw_item_remove(priv, di);
di = di_prev == 0 ? priv->draw_item_head : di_prev->next;
}
else
{
di_prev = di;
di = di->next;
}
}
#endif
return 0;
}