static int
miRecomputeExposures(WindowPtr pWin, void *value)
{ /* must conform to VisitWindowProcPtr */
RegionPtr pValid = (RegionPtr) value;
if (pWin->valdata) {
#ifdef COMPOSITE
/*
* Redirected windows are not affected by parent window
* gravity manipulations, so don't recompute their
* exposed areas here.
*/
if (pWin->redirectDraw != RedirectDrawNone)
return WT_DONTWALKCHILDREN;
#endif
/*
* compute exposed regions of this window
*/
RegionSubtract(&pWin->valdata->after.exposed, &pWin->clipList, pValid);
/*
* compute exposed regions of the border
*/
RegionSubtract(&pWin->valdata->after.borderExposed,
&pWin->borderClip, &pWin->winSize);
RegionSubtract(&pWin->valdata->after.borderExposed,
&pWin->valdata->after.borderExposed, pValid);
return WT_WALKCHILDREN;
}
return WT_NOMATCH;
}
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
miChangeBorderWidth(WindowPtr pWin, unsigned int width)
{
int oldwidth;
Bool anyMarked = FALSE;
ScreenPtr pScreen;
Bool WasViewable = (Bool) (pWin->viewable);
Bool HadBorder;
WindowPtr pLayerWin;
oldwidth = wBorderWidth(pWin);
if (oldwidth == width)
return;
HadBorder = HasBorder(pWin);
pScreen = pWin->drawable.pScreen;
if (WasViewable && width < oldwidth)
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
pWin->borderWidth = width;
SetBorderSize(pWin);
if (WasViewable) {
if (width > oldwidth) {
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin,
&pLayerWin);
/*
* save the old border visible region to correctly compute
* borderExposed.
*/
if (pWin->valdata && HadBorder) {
RegionPtr borderVisible;
borderVisible = RegionCreate(NULL, 1);
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
pWin->valdata->before.borderVisible = borderVisible;
}
}
if (anyMarked) {
(*pScreen->ValidateTree) (pLayerWin->parent, pLayerWin, VTOther);
(*pScreen->HandleExposures) (pLayerWin->parent);
}
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, pLayerWin,
VTOther);
}
if (pWin->realized)
WindowsRestructured();
}
void
miSetShape(WindowPtr pWin, int kind)
{
Bool WasViewable = (Bool) (pWin->viewable);
ScreenPtr pScreen = pWin->drawable.pScreen;
Bool anyMarked = FALSE;
WindowPtr pLayerWin;
if (kind != ShapeInput) {
if (WasViewable) {
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin,
&pLayerWin);
if (pWin->valdata) {
if (HasBorder(pWin)) {
RegionPtr borderVisible;
borderVisible = RegionCreate(NullBox, 1);
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
pWin->valdata->before.borderVisible = borderVisible;
}
pWin->valdata->before.resized = TRUE;
}
}
SetWinSize(pWin);
SetBorderSize(pWin);
ResizeChildrenWinSize(pWin, 0, 0, 0, 0);
if (WasViewable) {
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
if (anyMarked)
(*pScreen->ValidateTree) (pLayerWin->parent, NullWindow,
VTOther);
}
if (WasViewable) {
if (anyMarked)
(*pScreen->HandleExposures) (pLayerWin->parent);
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, NullWindow,
VTOther);
}
}
if (pWin->realized)
WindowsRestructured();
CheckCursorConfinement(pWin);
}
Bool
xf86InitFBManager(ScreenPtr pScreen, BoxPtr FullBox)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
RegionRec ScreenRegion;
RegionRec FullRegion;
BoxRec ScreenBox;
Bool ret;
ScreenBox.x1 = 0;
ScreenBox.y1 = 0;
ScreenBox.x2 = pScrn->virtualX;
ScreenBox.y2 = pScrn->virtualY;
if ((FullBox->x1 > ScreenBox.x1) || (FullBox->y1 > ScreenBox.y1) ||
(FullBox->x2 < ScreenBox.x2) || (FullBox->y2 < ScreenBox.y2)) {
return FALSE;
}
if (FullBox->y2 < FullBox->y1)
return FALSE;
if (FullBox->x2 < FullBox->x1)
return FALSE;
RegionInit(&ScreenRegion, &ScreenBox, 1);
RegionInit(&FullRegion, FullBox, 1);
RegionSubtract(&FullRegion, &FullRegion, &ScreenRegion);
ret = xf86InitFBManagerRegion(pScreen, &FullRegion);
RegionUninit(&ScreenRegion);
RegionUninit(&FullRegion);
return ret;
}
static Bool
localQueryLargestOffscreenArea(ScreenPtr pScreen,
int *width, int *height,
int granularity, int preferences, int severity)
{
FBManagerPtr offman;
RegionPtr newRegion = NULL;
BoxPtr pbox;
int nbox;
int x, w, h, area, oldArea;
*width = *height = oldArea = 0;
if (granularity <= 1)
granularity = 0;
if ((preferences < 0) || (preferences > 3))
return FALSE;
offman = (FBManagerPtr) dixLookupPrivate(&pScreen->devPrivates,
xf86FBScreenKey);
if (severity < 0)
severity = 0;
if (severity > 2)
severity = 2;
switch (severity) {
case 2:
if (offman->NumUsedAreas) {
FBLinkPtr pLink;
RegionRec tmpRegion;
newRegion = RegionCreate(NULL, 1);
RegionCopy(newRegion, offman->InitialBoxes);
pLink = offman->UsedAreas;
while (pLink) {
if (!pLink->area.RemoveAreaCallback) {
RegionInit(&tmpRegion, &(pLink->area.box), 1);
RegionSubtract(newRegion, newRegion, &tmpRegion);
RegionUninit(&tmpRegion);
}
pLink = pLink->next;
}
nbox = RegionNumRects(newRegion);
pbox = RegionRects(newRegion);
break;
}
case 1:
if (offman->NumUsedAreas) {
FBLinkPtr pLink;
RegionRec tmpRegion;
newRegion = RegionCreate(NULL, 1);
RegionCopy(newRegion, offman->FreeBoxes);
pLink = offman->UsedAreas;
while (pLink) {
if (pLink->area.RemoveAreaCallback) {
RegionInit(&tmpRegion, &(pLink->area.box), 1);
RegionAppend(newRegion, &tmpRegion);
RegionUninit(&tmpRegion);
}
pLink = pLink->next;
}
nbox = RegionNumRects(newRegion);
pbox = RegionRects(newRegion);
break;
}
default:
nbox = RegionNumRects(offman->FreeBoxes);
pbox = RegionRects(offman->FreeBoxes);
break;
}
while (nbox--) {
x = pbox->x1;
if (granularity > 1)
x = ((x + granularity - 1) / granularity) * granularity;
w = pbox->x2 - x;
h = pbox->y2 - pbox->y1;
area = w * h;
if (w > 0) {
Bool gotIt = FALSE;
switch (preferences) {
case FAVOR_AREA_THEN_WIDTH:
if ((area > oldArea) || ((area == oldArea) && (w > *width)))
gotIt = TRUE;
break;
case FAVOR_AREA_THEN_HEIGHT:
if ((area > oldArea) || ((area == oldArea) && (h > *height)))
gotIt = TRUE;
break;
case FAVOR_WIDTH_THEN_AREA:
if ((w > *width) || ((w == *width) && (area > oldArea)))
gotIt = TRUE;
break;
case FAVOR_HEIGHT_THEN_AREA:
if ((h > *height) || ((h == *height) && (area > oldArea)))
gotIt = TRUE;
break;
}
if (gotIt) {
*width = w;
*height = h;
oldArea = area;
}
}
pbox++;
}
if (newRegion)
RegionDestroy(newRegion);
return TRUE;
}
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;
}
Bool
xf86InitFBManagerArea(ScreenPtr pScreen, int PixelArea, int Verbosity)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
xRectangle Rect[3];
RegionPtr pRegion, pScreenRegion;
int nRect;
Bool ret = FALSE;
if (PixelArea < (pScrn->displayWidth * pScrn->virtualY))
return FALSE;
Rect[0].x = Rect[0].y = 0;
Rect[0].width = pScrn->displayWidth;
Rect[0].height = PixelArea / pScrn->displayWidth;
nRect = 1;
/* Add a possible partial scanline */
if ((Rect[1].height = Rect[1].width = PixelArea % pScrn->displayWidth)) {
Rect[1].x = 0;
Rect[1].y = Rect[0].height;
Rect[1].height = 1;
nRect++;
}
/* Factor out virtual resolution */
pRegion = RegionFromRects(nRect, Rect, 0);
if (pRegion) {
if (!RegionNar(pRegion)) {
Rect[2].x = Rect[2].y = 0;
Rect[2].width = pScrn->virtualX;
Rect[2].height = pScrn->virtualY;
pScreenRegion = RegionFromRects(1, &Rect[2], 0);
if (pScreenRegion) {
if (!RegionNar(pScreenRegion)) {
RegionSubtract(pRegion, pRegion, pScreenRegion);
ret = xf86InitFBManagerRegion(pScreen, pRegion);
if (ret && xf86GetVerbosity() >= Verbosity) {
int scrnIndex = pScrn->scrnIndex;
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"Largest offscreen areas (with overlaps):\n");
if (Rect[2].width < Rect[0].width) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at %d,0\n",
Rect[0].width - Rect[2].width,
Rect[0].height, Rect[2].width);
}
if (Rect[2].width < Rect[1].width) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at %d,0\n",
Rect[1].width - Rect[2].width,
Rect[0].height + Rect[1].height,
Rect[2].width);
}
if (Rect[2].height < Rect[0].height) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at 0,%d\n",
Rect[0].width,
Rect[0].height - Rect[2].height,
Rect[2].height);
}
if (Rect[1].height) {
xf86DrvMsgVerb(scrnIndex, X_INFO, Verbosity,
"\t%d x %d rectangle at 0,%d\n",
Rect[1].width,
Rect[0].height - Rect[2].height +
Rect[1].height, Rect[2].height);
}
}
}
RegionDestroy(pScreenRegion);
}
}
RegionDestroy(pRegion);
}
return ret;
}
/**
* 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);
}
/*
*-----------------------------------------------------------------------
* miComputeClips --
* Recompute the clipList, borderClip, exposed and borderExposed
* regions for pParent and its children. Only viewable windows are
* taken into account.
*
* Results:
* None.
*
* Side Effects:
* clipList, borderClip, exposed and borderExposed are altered.
* A VisibilityNotify event may be generated on the parent window.
*
*-----------------------------------------------------------------------
*/
static void
miComputeClips (
WindowPtr pParent,
ScreenPtr pScreen,
RegionPtr universe,
VTKind kind,
RegionPtr exposed ) /* for intermediate calculations */
{
int dx,
dy;
RegionRec childUniverse;
WindowPtr pChild;
int oldVis, newVis;
BoxRec borderSize;
RegionRec childUnion;
Bool overlap;
RegionPtr borderVisible;
/*
* Figure out the new visibility of this window.
* The extent of the universe should be the same as the extent of
* the borderSize region. If the window is unobscured, this rectangle
* will be completely inside the universe (the universe will cover it
* completely). If the window is completely obscured, none of the
* universe will cover the rectangle.
*/
borderSize.x1 = pParent->drawable.x - wBorderWidth(pParent);
borderSize.y1 = pParent->drawable.y - wBorderWidth(pParent);
dx = (int) pParent->drawable.x + (int) pParent->drawable.width + wBorderWidth(pParent);
if (dx > 32767)
dx = 32767;
borderSize.x2 = dx;
dy = (int) pParent->drawable.y + (int) pParent->drawable.height + wBorderWidth(pParent);
if (dy > 32767)
dy = 32767;
borderSize.y2 = dy;
#ifdef COMPOSITE
/*
* In redirected drawing case, reset universe to borderSize
*/
if (pParent->redirectDraw != RedirectDrawNone)
{
if (miSetRedirectBorderClipProc)
{
if (TreatAsTransparent (pParent))
RegionEmpty(universe);
(*miSetRedirectBorderClipProc) (pParent, universe);
}
RegionCopy(universe, &pParent->borderSize);
}
#endif
oldVis = pParent->visibility;
switch (RegionContainsRect(universe, &borderSize))
{
case rgnIN:
newVis = VisibilityUnobscured;
break;
case rgnPART:
newVis = VisibilityPartiallyObscured;
{
RegionPtr pBounding;
if ((pBounding = wBoundingShape (pParent)))
{
switch (miShapedWindowIn (universe, pBounding,
&borderSize,
pParent->drawable.x,
pParent->drawable.y))
{
case rgnIN:
newVis = VisibilityUnobscured;
break;
case rgnOUT:
newVis = VisibilityFullyObscured;
break;
}
}
}
break;
default:
newVis = VisibilityFullyObscured;
break;
}
pParent->visibility = newVis;
if (oldVis != newVis &&
((pParent->eventMask | wOtherEventMasks(pParent)) & VisibilityChangeMask))
SendVisibilityNotify(pParent);
dx = pParent->drawable.x - pParent->valdata->before.oldAbsCorner.x;
dy = pParent->drawable.y - pParent->valdata->before.oldAbsCorner.y;
/*
* avoid computations when dealing with simple operations
*/
switch (kind) {
case VTMap:
case VTStack:
case VTUnmap:
break;
case VTMove:
if ((oldVis == newVis) &&
((oldVis == VisibilityFullyObscured) ||
(oldVis == VisibilityUnobscured)))
{
pChild = pParent;
while (1)
{
if (pChild->viewable)
{
if (pChild->visibility != VisibilityFullyObscured)
{
RegionTranslate(&pChild->borderClip,
dx, dy);
RegionTranslate(&pChild->clipList,
dx, dy);
pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER;
if (pScreen->ClipNotify)
(* pScreen->ClipNotify) (pChild, dx, dy);
}
if (pChild->valdata)
{
RegionNull(&pChild->valdata->after.borderExposed);
if (HasParentRelativeBorder(pChild))
{
RegionSubtract(&pChild->valdata->after.borderExposed,
&pChild->borderClip,
&pChild->winSize);
}
RegionNull(&pChild->valdata->after.exposed);
}
if (pChild->firstChild)
{
pChild = pChild->firstChild;
continue;
}
}
while (!pChild->nextSib && (pChild != pParent))
pChild = pChild->parent;
if (pChild == pParent)
break;
pChild = pChild->nextSib;
}
return;
}
/* fall through */
default:
/*
* To calculate exposures correctly, we have to translate the old
* borderClip and clipList regions to the window's new location so there
* is a correspondence between pieces of the new and old clipping regions.
*/
if (dx || dy)
{
/*
* We translate the old clipList because that will be exposed or copied
* if gravity is right.
*/
RegionTranslate(&pParent->borderClip, dx, dy);
RegionTranslate(&pParent->clipList, dx, dy);
}
break;
case VTBroken:
RegionEmpty(&pParent->borderClip);
RegionEmpty(&pParent->clipList);
break;
}
borderVisible = pParent->valdata->before.borderVisible;
RegionNull(&pParent->valdata->after.borderExposed);
RegionNull(&pParent->valdata->after.exposed);
/*
* Since the borderClip must not be clipped by the children, we do
* the border exposure first...
*
* 'universe' is the window's borderClip. To figure the exposures, remove
* the area that used to be exposed from the new.
* This leaves a region of pieces that weren't exposed before.
*/
if (HasBorder (pParent))
{
if (borderVisible)
{
/*
* when the border changes shape, the old visible portions
* of the border will be saved by DIX in borderVisible --
* use that region and destroy it
*/
RegionSubtract(exposed, universe, borderVisible);
RegionDestroy(borderVisible);
}
else
{
RegionSubtract(exposed, universe, &pParent->borderClip);
}
if (HasParentRelativeBorder(pParent) && (dx || dy))
RegionSubtract(&pParent->valdata->after.borderExposed,
universe,
&pParent->winSize);
else
RegionSubtract(&pParent->valdata->after.borderExposed,
exposed, &pParent->winSize);
RegionCopy(&pParent->borderClip, universe);
/*
* To get the right clipList for the parent, and to make doubly sure
* that no child overlaps the parent's border, we remove the parent's
* border from the universe before proceeding.
*/
RegionIntersect(universe, universe, &pParent->winSize);
}
else
RegionCopy(&pParent->borderClip, universe);
if ((pChild = pParent->firstChild) && pParent->mapped)
{
RegionNull(&childUniverse);
RegionNull(&childUnion);
if ((pChild->drawable.y < pParent->lastChild->drawable.y) ||
((pChild->drawable.y == pParent->lastChild->drawable.y) &&
(pChild->drawable.x < pParent->lastChild->drawable.x)))
{
for (; pChild; pChild = pChild->nextSib)
{
if (pChild->viewable && !TreatAsTransparent(pChild))
RegionAppend(&childUnion, &pChild->borderSize);
}
}
else
{
for (pChild = pParent->lastChild; pChild; pChild = pChild->prevSib)
{
if (pChild->viewable && !TreatAsTransparent(pChild))
RegionAppend(&childUnion, &pChild->borderSize);
}
}
RegionValidate(&childUnion, &overlap);
for (pChild = pParent->firstChild;
pChild;
pChild = pChild->nextSib)
{
if (pChild->viewable) {
/*
* If the child is viewable, we want to remove its extents
* from the current universe, but we only re-clip it if
* it's been marked.
*/
if (pChild->valdata) {
/*
* Figure out the new universe from the child's
* perspective and recurse.
*/
RegionIntersect(&childUniverse,
universe,
&pChild->borderSize);
miComputeClips (pChild, pScreen, &childUniverse, kind,
exposed);
}
/*
* Once the child has been processed, we remove its extents
* from the current universe, thus denying its space to any
* other sibling.
*/
if (overlap && !TreatAsTransparent (pChild))
RegionSubtract(universe, universe,
&pChild->borderSize);
}
}
if (!overlap)
RegionSubtract(universe, universe, &childUnion);
RegionUninit(&childUnion);
RegionUninit(&childUniverse);
} /* if any children */
/*
* 'universe' now contains the new clipList for the parent window.
*
* To figure the exposure of the window we subtract the old clip from the
* new, just as for the border.
*/
if (oldVis == VisibilityFullyObscured ||
oldVis == VisibilityNotViewable)
{
RegionCopy(&pParent->valdata->after.exposed, universe);
}
else if (newVis != VisibilityFullyObscured &&
newVis != VisibilityNotViewable)
{
RegionSubtract(&pParent->valdata->after.exposed,
universe, &pParent->clipList);
}
/* HACK ALERT - copying contents of regions, instead of regions */
{
RegionRec tmp;
tmp = pParent->clipList;
pParent->clipList = *universe;
*universe = tmp;
}
#ifdef NOTDEF
RegionCopy(&pParent->clipList, universe);
#endif
pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
if (pScreen->ClipNotify)
(* pScreen->ClipNotify) (pParent, dx, dy);
}
/* XaceCensorImage
*
* Called after pScreen->GetImage to prevent pieces or trusted windows from
* being returned in image data from an untrusted window.
*
* Arguments:
* client is the client doing the GetImage.
* pVisibleRegion is the visible region of the window.
* widthBytesLine is the width in bytes of one horizontal line in pBuf.
* pDraw is the source window.
* x, y, w, h is the rectangle of image data from pDraw in pBuf.
* format is the format of the image data in pBuf: ZPixmap or XYPixmap.
* pBuf is the image data.
*
* Returns: nothing.
*
* Side Effects:
* Any part of the rectangle (x, y, w, h) that is outside the visible
* region of the window will be destroyed (overwritten) in pBuf.
*/
void
XaceCensorImage(ClientPtr client,
RegionPtr pVisibleRegion,
long widthBytesLine,
DrawablePtr pDraw,
int x, int y, int w, int h, unsigned int format, char *pBuf)
{
RegionRec imageRegion; /* region representing x,y,w,h */
RegionRec censorRegion; /* region to obliterate */
BoxRec imageBox;
int nRects;
imageBox.x1 = x;
imageBox.y1 = y;
imageBox.x2 = x + w;
imageBox.y2 = y + h;
RegionInit(&imageRegion, &imageBox, 1);
RegionNull(&censorRegion);
/* censorRegion = imageRegion - visibleRegion */
RegionSubtract(&censorRegion, &imageRegion, pVisibleRegion);
nRects = RegionNumRects(&censorRegion);
if (nRects > 0) { /* we have something to censor */
GCPtr pScratchGC = NULL;
PixmapPtr pPix = NULL;
xRectangle *pRects = NULL;
Bool failed = FALSE;
int depth = 1;
int bitsPerPixel = 1;
int i;
BoxPtr pBox;
/* convert region to list-of-rectangles for PolyFillRect */
pRects = malloc(nRects * sizeof(xRectangle));
if (!pRects) {
failed = TRUE;
goto failSafe;
}
for (pBox = RegionRects(&censorRegion), i = 0; i < nRects; i++, pBox++) {
pRects[i].x = pBox->x1;
pRects[i].y = pBox->y1 - imageBox.y1;
pRects[i].width = pBox->x2 - pBox->x1;
pRects[i].height = pBox->y2 - pBox->y1;
}
/* use pBuf as a fake pixmap */
if (format == ZPixmap) {
depth = pDraw->depth;
bitsPerPixel = pDraw->bitsPerPixel;
}
pPix = GetScratchPixmapHeader(pDraw->pScreen, w, h,
depth, bitsPerPixel,
widthBytesLine, (pointer) pBuf);
if (!pPix) {
failed = TRUE;
goto failSafe;
}
pScratchGC = GetScratchGC(depth, pPix->drawable.pScreen);
if (!pScratchGC) {
failed = TRUE;
goto failSafe;
}
ValidateGC(&pPix->drawable, pScratchGC);
(*pScratchGC->ops->PolyFillRect) (&pPix->drawable,
pScratchGC, nRects, pRects);
failSafe:
if (failed) {
/* Censoring was not completed above. To be safe, wipe out
* all the image data so that nothing trusted gets out.
*/
memset(pBuf, 0, (int) (widthBytesLine * h));
}
free(pRects);
if (pScratchGC)
FreeScratchGC(pScratchGC);
if (pPix)
FreeScratchPixmapHeader(pPix);
}
RegionUninit(&imageRegion);
RegionUninit(&censorRegion);
} /* XaceCensorImage */
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;
}
RegionPtr
miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable,
GCPtr pGC, int srcx, int srcy, int width, int height,
int dstx, int dsty)
{
RegionPtr prgnSrcClip; /* drawable-relative source clip */
RegionRec rgnSrcRec;
RegionPtr prgnDstClip; /* drawable-relative dest clip */
RegionRec rgnDstRec;
BoxRec srcBox; /* unclipped source */
RegionRec rgnExposed; /* exposed region, calculated source-
relative, made dst relative to
intersect with visible parts of
dest and send events to client,
and then screen relative to paint
the window background
*/
WindowPtr pSrcWin;
BoxRec expBox = { 0, };
Bool extents;
/* avoid work if we can */
if (!pGC->graphicsExposures && pDstDrawable->type == DRAWABLE_PIXMAP)
return NULL;
srcBox.x1 = srcx;
srcBox.y1 = srcy;
srcBox.x2 = srcx + width;
srcBox.y2 = srcy + height;
if (pSrcDrawable->type != DRAWABLE_PIXMAP) {
BoxRec TsrcBox;
TsrcBox.x1 = srcx + pSrcDrawable->x;
TsrcBox.y1 = srcy + pSrcDrawable->y;
TsrcBox.x2 = TsrcBox.x1 + width;
TsrcBox.y2 = TsrcBox.y1 + height;
pSrcWin = (WindowPtr) pSrcDrawable;
if (pGC->subWindowMode == IncludeInferiors) {
prgnSrcClip = NotClippedByChildren(pSrcWin);
if ((RegionContainsRect(prgnSrcClip, &TsrcBox)) == rgnIN) {
RegionDestroy(prgnSrcClip);
return NULL;
}
}
else {
if ((RegionContainsRect(&pSrcWin->clipList, &TsrcBox)) == rgnIN)
return NULL;
prgnSrcClip = &rgnSrcRec;
RegionNull(prgnSrcClip);
RegionCopy(prgnSrcClip, &pSrcWin->clipList);
}
RegionTranslate(prgnSrcClip, -pSrcDrawable->x, -pSrcDrawable->y);
}
else {
BoxRec box;
if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) &&
(srcBox.x2 <= pSrcDrawable->width) &&
(srcBox.y2 <= pSrcDrawable->height))
return NULL;
box.x1 = 0;
box.y1 = 0;
box.x2 = pSrcDrawable->width;
box.y2 = pSrcDrawable->height;
prgnSrcClip = &rgnSrcRec;
RegionInit(prgnSrcClip, &box, 1);
pSrcWin = NULL;
}
if (pDstDrawable == pSrcDrawable) {
prgnDstClip = prgnSrcClip;
}
else if (pDstDrawable->type != DRAWABLE_PIXMAP) {
if (pGC->subWindowMode == IncludeInferiors) {
prgnDstClip = NotClippedByChildren((WindowPtr) pDstDrawable);
}
else {
prgnDstClip = &rgnDstRec;
RegionNull(prgnDstClip);
RegionCopy(prgnDstClip, &((WindowPtr) pDstDrawable)->clipList);
}
RegionTranslate(prgnDstClip, -pDstDrawable->x, -pDstDrawable->y);
}
else {
BoxRec box;
box.x1 = 0;
box.y1 = 0;
box.x2 = pDstDrawable->width;
box.y2 = pDstDrawable->height;
prgnDstClip = &rgnDstRec;
RegionInit(prgnDstClip, &box, 1);
}
/* drawable-relative source region */
RegionInit(&rgnExposed, &srcBox, 1);
/* now get the hidden parts of the source box */
RegionSubtract(&rgnExposed, &rgnExposed, prgnSrcClip);
/* move them over the destination */
RegionTranslate(&rgnExposed, dstx - srcx, dsty - srcy);
/* intersect with visible areas of dest */
RegionIntersect(&rgnExposed, &rgnExposed, prgnDstClip);
/* intersect with client clip region. */
if (pGC->clientClip)
RegionIntersect(&rgnExposed, &rgnExposed, pGC->clientClip);
/*
* 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" :-)
* for windows.
*/
extents = pGC->graphicsExposures &&
(RegionNumRects(&rgnExposed) > RECTLIMIT) &&
(pDstDrawable->type != DRAWABLE_PIXMAP);
if (pSrcWin) {
RegionPtr region;
if (!(region = wClipShape(pSrcWin)))
region = wBoundingShape(pSrcWin);
/*
* If you try to CopyArea the extents of a shaped window, compacting the
* exposed region will undo all our work!
*/
if (extents && pSrcWin && region &&
(RegionContainsRect(region, &srcBox) != rgnIN))
extents = FALSE;
}
if (extents) {
expBox = *RegionExtents(&rgnExposed);
RegionReset(&rgnExposed, &expBox);
}
if ((pDstDrawable->type != DRAWABLE_PIXMAP) &&
(((WindowPtr) pDstDrawable)->backgroundState != None)) {
WindowPtr pWin = (WindowPtr) pDstDrawable;
/* make the exposed area screen-relative */
RegionTranslate(&rgnExposed, pDstDrawable->x, pDstDrawable->y);
if (extents) {
/* PaintWindow doesn't clip, so we have to */
RegionIntersect(&rgnExposed, &rgnExposed, &pWin->clipList);
}
pDstDrawable->pScreen->PaintWindow((WindowPtr) pDstDrawable,
&rgnExposed, PW_BACKGROUND);
if (extents) {
RegionReset(&rgnExposed, &expBox);
}
else
RegionTranslate(&rgnExposed, -pDstDrawable->x, -pDstDrawable->y);
}
if (prgnDstClip == &rgnDstRec) {
RegionUninit(prgnDstClip);
}
else if (prgnDstClip != prgnSrcClip) {
RegionDestroy(prgnDstClip);
}
if (prgnSrcClip == &rgnSrcRec) {
RegionUninit(prgnSrcClip);
}
else {
RegionDestroy(prgnSrcClip);
}
if (pGC->graphicsExposures) {
/* don't look */
RegionPtr exposed = RegionCreate(NullBox, 0);
*exposed = rgnExposed;
return exposed;
}
else {
RegionUninit(&rgnExposed);
return NULL;
}
}
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();
}
/*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 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;
}
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;
}
