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xserver/mi/mioverlay.c

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#include <dix-config.h>
#include <X11/X.h>
#include <X11/Xmd.h>
#include <X11/extensions/shapeproto.h>
#include "dix/cursor_priv.h"
#include "dix/dix_priv.h"
#include "dix/screen_hooks_priv.h"
#include "mi/mi_priv.h"
#include "scrnintstr.h"
#include "validate.h"
#include "windowstr.h"
#include "gcstruct.h"
#include "regionstr.h"
#include "privates.h"
#include "mivalidate.h"
#include "mioverlay.h"
#include "migc.h"
#include "globals.h"
typedef struct {
RegionRec exposed;
RegionRec borderExposed;
RegionPtr borderVisible;
DDXPointRec oldAbsCorner;
} miOverlayValDataRec, *miOverlayValDataPtr;
typedef struct _TreeRec {
WindowPtr pWin;
struct _TreeRec *parent;
struct _TreeRec *firstChild;
struct _TreeRec *lastChild;
struct _TreeRec *prevSib;
struct _TreeRec *nextSib;
RegionRec borderClip;
RegionRec clipList;
unsigned visibility;
miOverlayValDataPtr valdata;
} miOverlayTreeRec, *miOverlayTreePtr;
typedef struct {
miOverlayTreePtr tree;
} miOverlayWindowRec, *miOverlayWindowPtr;
typedef struct {
CreateWindowProcPtr CreateWindow;
DestroyWindowProcPtr DestroyWindow;
UnrealizeWindowProcPtr UnrealizeWindow;
RealizeWindowProcPtr RealizeWindow;
miOverlayTransFunc MakeTransparent;
miOverlayInOverlayFunc InOverlay;
Bool underlayMarked;
Bool copyUnderlay;
} miOverlayScreenRec, *miOverlayScreenPtr;
static DevPrivateKeyRec miOverlayWindowKeyRec;
#define miOverlayWindowKey (&miOverlayWindowKeyRec)
static DevPrivateKeyRec miOverlayScreenKeyRec;
#define miOverlayScreenKey (&miOverlayScreenKeyRec)
static void RebuildTree(WindowPtr);
static Bool HasUnderlayChildren(WindowPtr);
static void MarkUnderlayWindow(WindowPtr);
static Bool CollectUnderlayChildrenRegions(WindowPtr, RegionPtr);
static void miOverlayCloseScreen(CallbackListPtr *pcbl, ScreenPtr pScreen, void *unused);
static Bool miOverlayCreateWindow(WindowPtr);
static Bool miOverlayDestroyWindow(WindowPtr);
static Bool miOverlayUnrealizeWindow(WindowPtr);
static Bool miOverlayRealizeWindow(WindowPtr);
static void miOverlayMarkWindow(WindowPtr);
static void miOverlayReparentWindow(WindowPtr, WindowPtr);
static void miOverlayRestackWindow(WindowPtr, WindowPtr);
static Bool miOverlayMarkOverlappedWindows(WindowPtr, WindowPtr, WindowPtr *);
static void miOverlayMarkUnrealizedWindow(WindowPtr, WindowPtr, Bool);
static int miOverlayValidateTree(WindowPtr, WindowPtr, VTKind);
static void miOverlayHandleExposures(WindowPtr);
static void miOverlayMoveWindow(WindowPtr, int, int, WindowPtr, VTKind);
static void miOverlayWindowExposures(WindowPtr, RegionPtr);
static void miOverlayResizeWindow(WindowPtr, int, int, unsigned int,
unsigned int, WindowPtr);
static void miOverlayClearToBackground(WindowPtr, int, int, int, int, Bool);
static void miOverlaySetShape(WindowPtr, int);
static void miOverlayChangeBorderWidth(WindowPtr, unsigned int);
#define MIOVERLAY_GET_SCREEN_PRIVATE(pScreen) ((miOverlayScreenPtr) \
dixLookupPrivate(&(pScreen)->devPrivates, miOverlayScreenKey))
#define MIOVERLAY_GET_WINDOW_PRIVATE(pWin) ((miOverlayWindowPtr) \
dixLookupPrivate(&(pWin)->devPrivates, miOverlayWindowKey))
#define MIOVERLAY_GET_WINDOW_TREE(pWin) \
(MIOVERLAY_GET_WINDOW_PRIVATE(pWin)->tree)
#define IN_UNDERLAY(w) MIOVERLAY_GET_WINDOW_TREE(w)
#define IN_OVERLAY(w) !MIOVERLAY_GET_WINDOW_TREE(w)
#define MARK_OVERLAY(w) miMarkWindow(w)
#define MARK_UNDERLAY(w) MarkUnderlayWindow(w)
#define HasParentRelativeBorder(w) (!(w)->borderIsPixel && \
HasBorder(w) && \
(w)->backgroundState == ParentRelative)
Bool
miInitOverlay(ScreenPtr pScreen,
miOverlayInOverlayFunc inOverlayFunc,
miOverlayTransFunc transFunc)
{
miOverlayScreenPtr pScreenPriv;
if (!inOverlayFunc || !transFunc)
return FALSE;
if (!dixRegisterPrivateKey
(&miOverlayWindowKeyRec, PRIVATE_WINDOW, sizeof(miOverlayWindowRec)))
return FALSE;
if (!dixRegisterPrivateKey(&miOverlayScreenKeyRec, PRIVATE_SCREEN, 0))
return FALSE;
if (!(pScreenPriv = calloc(1, sizeof(miOverlayScreenRec))))
return FALSE;
dixSetPrivate(&pScreen->devPrivates, miOverlayScreenKey, pScreenPriv);
dixScreenHookClose(pScreen, miOverlayCloseScreen);
pScreenPriv->InOverlay = inOverlayFunc;
pScreenPriv->MakeTransparent = transFunc;
pScreenPriv->underlayMarked = FALSE;
pScreenPriv->CreateWindow = pScreen->CreateWindow;
pScreenPriv->DestroyWindow = pScreen->DestroyWindow;
pScreenPriv->UnrealizeWindow = pScreen->UnrealizeWindow;
pScreenPriv->RealizeWindow = pScreen->RealizeWindow;
pScreen->CreateWindow = miOverlayCreateWindow;
pScreen->DestroyWindow = miOverlayDestroyWindow;
pScreen->UnrealizeWindow = miOverlayUnrealizeWindow;
pScreen->RealizeWindow = miOverlayRealizeWindow;
pScreen->ReparentWindow = miOverlayReparentWindow;
pScreen->RestackWindow = miOverlayRestackWindow;
pScreen->MarkOverlappedWindows = miOverlayMarkOverlappedWindows;
pScreen->MarkUnrealizedWindow = miOverlayMarkUnrealizedWindow;
pScreen->ValidateTree = miOverlayValidateTree;
pScreen->HandleExposures = miOverlayHandleExposures;
pScreen->MoveWindow = miOverlayMoveWindow;
pScreen->WindowExposures = miOverlayWindowExposures;
pScreen->ResizeWindow = miOverlayResizeWindow;
pScreen->MarkWindow = miOverlayMarkWindow;
pScreen->ClearToBackground = miOverlayClearToBackground;
pScreen->SetShape = miOverlaySetShape;
pScreen->ChangeBorderWidth = miOverlayChangeBorderWidth;
return TRUE;
}
static void miOverlayCloseScreen(CallbackListPtr *pcbl, ScreenPtr pScreen, void *unused)
{
dixScreenUnhookClose(pScreen, miOverlayCloseScreen);
miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
if (!pScreenPriv)
return;
pScreen->CreateWindow = pScreenPriv->CreateWindow;
pScreen->DestroyWindow = pScreenPriv->DestroyWindow;
pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow;
pScreen->RealizeWindow = pScreenPriv->RealizeWindow;
free(pScreenPriv);
dixSetPrivate(&pScreen->devPrivates, miOverlayScreenKey, NULL);
}
static Bool
miOverlayCreateWindow(WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
miOverlayWindowPtr pWinPriv = MIOVERLAY_GET_WINDOW_PRIVATE(pWin);
miOverlayTreePtr pTree = NULL;
Bool result = TRUE;
pWinPriv->tree = NULL;
if (!pWin->parent || !((*pScreenPriv->InOverlay) (pWin))) {
if (!(pTree = (miOverlayTreePtr) calloc(1, sizeof(miOverlayTreeRec))))
return FALSE;
}
if (pScreenPriv->CreateWindow) {
pScreen->CreateWindow = pScreenPriv->CreateWindow;
result = (*pScreen->CreateWindow) (pWin);
pScreen->CreateWindow = miOverlayCreateWindow;
}
if (pTree) {
if (result) {
pTree->pWin = pWin;
pTree->visibility = VisibilityNotViewable;
pWinPriv->tree = pTree;
if (pWin->parent) {
RegionNull(&(pTree->borderClip));
RegionNull(&(pTree->clipList));
RebuildTree(pWin);
}
else {
BoxRec fullBox;
fullBox.x1 = 0;
fullBox.y1 = 0;
fullBox.x2 = pScreen->width;
fullBox.y2 = pScreen->height;
RegionInit(&(pTree->borderClip), &fullBox, 1);
RegionInit(&(pTree->clipList), &fullBox, 1);
}
}
else
free(pTree);
}
return TRUE;
}
static Bool
miOverlayDestroyWindow(WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
Bool result = TRUE;
if (pTree) {
if (pTree->prevSib)
pTree->prevSib->nextSib = pTree->nextSib;
else if (pTree->parent)
pTree->parent->firstChild = pTree->nextSib;
if (pTree->nextSib)
pTree->nextSib->prevSib = pTree->prevSib;
else if (pTree->parent)
pTree->parent->lastChild = pTree->prevSib;
RegionUninit(&(pTree->borderClip));
RegionUninit(&(pTree->clipList));
free(pTree);
}
if (pScreenPriv->DestroyWindow) {
pScreen->DestroyWindow = pScreenPriv->DestroyWindow;
result = (*pScreen->DestroyWindow) (pWin);
pScreen->DestroyWindow = miOverlayDestroyWindow;
}
return result;
}
static Bool
miOverlayUnrealizeWindow(WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
Bool result = TRUE;
if (pTree)
pTree->visibility = VisibilityNotViewable;
if (pScreenPriv->UnrealizeWindow) {
pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow;
result = (*pScreen->UnrealizeWindow) (pWin);
pScreen->UnrealizeWindow = miOverlayUnrealizeWindow;
}
return result;
}
static Bool
miOverlayRealizeWindow(WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
Bool result = TRUE;
if (pScreenPriv->RealizeWindow) {
pScreen->RealizeWindow = pScreenPriv->RealizeWindow;
result = (*pScreen->RealizeWindow) (pWin);
pScreen->RealizeWindow = miOverlayRealizeWindow;
}
/* we only need to catch the root window realization */
if (result && !pWin->parent && !((*pScreenPriv->InOverlay) (pWin))) {
BoxRec box;
box.x1 = box.y1 = 0;
box.x2 = pWin->drawable.width;
box.y2 = pWin->drawable.height;
(*pScreenPriv->MakeTransparent) (pScreen, 1, &box);
}
return result;
}
static void
miOverlayReparentWindow(WindowPtr pWin, WindowPtr pPriorParent)
{
if (IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {
/* This could probably be more optimal */
RebuildTree(pWin->drawable.pScreen->root->firstChild);
}
}
static void
miOverlayRestackWindow(WindowPtr pWin, WindowPtr oldNextSib)
{
if (IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {
/* This could probably be more optimal */
RebuildTree(pWin);
}
}
static Bool
miOverlayMarkOverlappedWindows(WindowPtr pWin,
WindowPtr pFirst, WindowPtr *pLayerWin)
{
WindowPtr pChild, pLast;
Bool overMarked, underMarked, doUnderlay, markAll;
miOverlayTreePtr pTree = NULL, tLast, tChild;
BoxPtr box;
overMarked = underMarked = markAll = FALSE;
if (pLayerWin)
*pLayerWin = pWin; /* hah! */
doUnderlay = (IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin));
box = RegionExtents(&pWin->borderSize);
if ((pChild = pFirst)) {
pLast = pChild->parent->lastChild;
while (1) {
if (pChild == pWin)
markAll = TRUE;
if (doUnderlay && IN_UNDERLAY(pChild))
pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
if (pChild->viewable) {
if (RegionBroken(&pChild->winSize))
SetWinSize(pChild);
if (RegionBroken(&pChild->borderSize))
SetBorderSize(pChild);
if (markAll || RegionContainsRect(&pChild->borderSize, box)) {
MARK_OVERLAY(pChild);
overMarked = TRUE;
if (doUnderlay && IN_UNDERLAY(pChild)) {
MARK_UNDERLAY(pChild);
underMarked = TRUE;
}
if (pChild->firstChild) {
pChild = pChild->firstChild;
continue;
}
}
}
while (!pChild->nextSib && (pChild != pLast)) {
pChild = pChild->parent;
if (doUnderlay && IN_UNDERLAY(pChild))
pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
}
if (pChild == pWin)
markAll = FALSE;
if (pChild == pLast)
break;
pChild = pChild->nextSib;
}
if (overMarked)
MARK_OVERLAY(pWin->parent);
}
if (doUnderlay && !pTree) {
if (!(pTree = MIOVERLAY_GET_WINDOW_TREE(pWin))) {
pChild = pWin->lastChild;
while (1) {
if ((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild)))
break;
if (pChild->lastChild) {
pChild = pChild->lastChild;
continue;
}
while (!pChild->prevSib)
pChild = pChild->parent;
pChild = pChild->prevSib;
}
}
}
if (pTree && pTree->nextSib) {
tChild = pTree->parent->lastChild;
tLast = pTree->nextSib;
while (1) {
if (tChild->pWin->viewable) {
if (RegionBroken(&tChild->pWin->winSize))
SetWinSize(tChild->pWin);
if (RegionBroken(&tChild->pWin->borderSize))
SetBorderSize(tChild->pWin);
if (RegionContainsRect(&(tChild->pWin->borderSize), box)) {
MARK_UNDERLAY(tChild->pWin);
underMarked = TRUE;
}
}
if (tChild->lastChild) {
tChild = tChild->lastChild;
continue;
}
while (!tChild->prevSib && (tChild != tLast))
tChild = tChild->parent;
if (tChild == tLast)
break;
tChild = tChild->prevSib;
}
}
if (underMarked) {
ScreenPtr pScreen = pWin->drawable.pScreen;
MARK_UNDERLAY(pTree->parent->pWin);
MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->underlayMarked = TRUE;
}
return underMarked || overMarked;
}
static void
miOverlayComputeClips(WindowPtr pParent,
RegionPtr universe, VTKind kind, RegionPtr exposed)
{
ScreenPtr pScreen = pParent->drawable.pScreen;
int oldVis, newVis, dx, dy;
BoxRec borderSize;
RegionPtr borderVisible;
RegionRec childUniverse, childUnion;
miOverlayTreePtr tParent = MIOVERLAY_GET_WINDOW_TREE(pParent);
miOverlayTreePtr tChild;
Bool overlap;
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;
oldVis = tParent->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;
}
tParent->visibility = newVis;
dx = pParent->drawable.x - tParent->valdata->oldAbsCorner.x;
dy = pParent->drawable.y - tParent->valdata->oldAbsCorner.y;
switch (kind) {
case VTMap:
case VTStack:
case VTUnmap:
break;
case VTMove:
if ((oldVis == newVis) &&
((oldVis == VisibilityFullyObscured) ||
(oldVis == VisibilityUnobscured))) {
tChild = tParent;
while (1) {
if (tChild->pWin->viewable) {
if (tChild->visibility != VisibilityFullyObscured) {
RegionTranslate(&tChild->borderClip, dx, dy);
RegionTranslate(&tChild->clipList, dx, dy);
tChild->pWin->drawable.serialNumber =
NEXT_SERIAL_NUMBER;
if (pScreen->ClipNotify)
(*pScreen->ClipNotify) (tChild->pWin, dx, dy);
}
if (tChild->valdata) {
RegionNull(&tChild->valdata->borderExposed);
if (HasParentRelativeBorder(tChild->pWin)) {
RegionSubtract(&tChild->valdata->borderExposed,
&tChild->borderClip,
&tChild->pWin->winSize);
}
RegionNull(&tChild->valdata->exposed);
}
if (tChild->firstChild) {
tChild = tChild->firstChild;
continue;
}
}
while (!tChild->nextSib && (tChild != tParent))
tChild = tChild->parent;
if (tChild == tParent)
break;
tChild = tChild->nextSib;
}
return;
}
/* fall through */
default:
if (dx || dy) {
RegionTranslate(&tParent->borderClip, dx, dy);
RegionTranslate(&tParent->clipList, dx, dy);
}
break;
case VTBroken:
RegionEmpty(&tParent->borderClip);
RegionEmpty(&tParent->clipList);
break;
}
borderVisible = tParent->valdata->borderVisible;
RegionNull(&tParent->valdata->borderExposed);
RegionNull(&tParent->valdata->exposed);
if (HasBorder(pParent)) {
if (borderVisible) {
RegionSubtract(exposed, universe, borderVisible);
RegionDestroy(borderVisible);
}
else
RegionSubtract(exposed, universe, &tParent->borderClip);
if (HasParentRelativeBorder(pParent) && (dx || dy))
RegionSubtract(&tParent->valdata->borderExposed,
universe, &pParent->winSize);
else
RegionSubtract(&tParent->valdata->borderExposed,
exposed, &pParent->winSize);
RegionCopy(&tParent->borderClip, universe);
RegionIntersect(universe, universe, &pParent->winSize);
}
else
RegionCopy(&tParent->borderClip, universe);
if ((tChild = tParent->firstChild) && pParent->mapped) {
RegionNull(&childUniverse);
RegionNull(&childUnion);
for (; tChild; tChild = tChild->nextSib) {
if (tChild->pWin->viewable)
RegionAppend(&childUnion, &tChild->pWin->borderSize);
}
RegionValidate(&childUnion, &overlap);
for (tChild = tParent->firstChild; tChild; tChild = tChild->nextSib) {
if (tChild->pWin->viewable) {
if (tChild->valdata) {
RegionIntersect(&childUniverse, universe,
&tChild->pWin->borderSize);
miOverlayComputeClips(tChild->pWin, &childUniverse,
kind, exposed);
}
if (overlap)
RegionSubtract(universe, universe,
&tChild->pWin->borderSize);
}
}
if (!overlap)
RegionSubtract(universe, universe, &childUnion);
RegionUninit(&childUnion);
RegionUninit(&childUniverse);
}
if (oldVis == VisibilityFullyObscured || oldVis == VisibilityNotViewable) {
RegionCopy(&tParent->valdata->exposed, universe);
}
else if (newVis != VisibilityFullyObscured &&
newVis != VisibilityNotViewable) {
RegionSubtract(&tParent->valdata->exposed,
universe, &tParent->clipList);
}
/* HACK ALERT - copying contents of regions, instead of regions */
{
RegionRec tmp;
tmp = tParent->clipList;
tParent->clipList = *universe;
*universe = tmp;
}
pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
if (pScreen->ClipNotify)
(*pScreen->ClipNotify) (pParent, dx, dy);
}
static void
miOverlayMarkWindow(WindowPtr pWin)
{
miOverlayTreePtr pTree = NULL;
WindowPtr pChild, pGrandChild;
miMarkWindow(pWin);
/* look for UnmapValdata among immediate children */
if (!(pChild = pWin->firstChild))
return;
for (; pChild; pChild = pChild->nextSib) {
if (pChild->valdata == UnmapValData) {
if (IN_UNDERLAY(pChild)) {
pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
pTree->valdata = (miOverlayValDataPtr) UnmapValData;
continue;
}
else {
if (!(pGrandChild = pChild->firstChild))
continue;
while (1) {
if (IN_UNDERLAY(pGrandChild)) {
pTree = MIOVERLAY_GET_WINDOW_TREE(pGrandChild);
pTree->valdata = (miOverlayValDataPtr) UnmapValData;
}
else if (pGrandChild->firstChild) {
pGrandChild = pGrandChild->firstChild;
continue;
}
while (!pGrandChild->nextSib && (pGrandChild != pChild))
pGrandChild = pGrandChild->parent;
if (pChild == pGrandChild)
break;
pGrandChild = pGrandChild->nextSib;
}
}
}
}
if (pTree) {
MARK_UNDERLAY(pTree->parent->pWin);
MIOVERLAY_GET_SCREEN_PRIVATE(pWin->drawable.pScreen)->underlayMarked =
TRUE;
}
}
static void
miOverlayMarkUnrealizedWindow(WindowPtr pChild,
WindowPtr pWin, Bool fromConfigure)
{
if ((pChild != pWin) || fromConfigure) {
miOverlayTreePtr pTree;
RegionEmpty(&pChild->clipList);
if (pChild->drawable.pScreen->ClipNotify)
(*pChild->drawable.pScreen->ClipNotify) (pChild, 0, 0);
RegionEmpty(&pChild->borderClip);
if ((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) {
if (pTree->valdata != (miOverlayValDataPtr) UnmapValData) {
RegionEmpty(&pTree->clipList);
RegionEmpty(&pTree->borderClip);
}
}
}
}
static int
miOverlayValidateTree(WindowPtr pParent, WindowPtr pChild, /* first child effected */
VTKind kind)
{
ScreenPtr pScreen = pParent->drawable.pScreen;
miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
RegionRec totalClip, childClip, exposed;
miOverlayTreePtr tParent, tChild, tWin;
Bool overlap;
WindowPtr newParent;
if (!pPriv->underlayMarked)
goto SKIP_UNDERLAY;
if (!pChild)
pChild = pParent->firstChild;
RegionNull(&totalClip);
RegionNull(&childClip);
RegionNull(&exposed);
newParent = pParent;
while (IN_OVERLAY(newParent))
newParent = newParent->parent;
tParent = MIOVERLAY_GET_WINDOW_TREE(newParent);
if (IN_UNDERLAY(pChild))
tChild = MIOVERLAY_GET_WINDOW_TREE(pChild);
else
tChild = tParent->firstChild;
if (RegionBroken(&tParent->clipList) && !RegionBroken(&tParent->borderClip)) {
kind = VTBroken;
RegionCopy(&totalClip, &tParent->borderClip);
RegionIntersect(&totalClip, &totalClip, &tParent->pWin->winSize);
for (tWin = tParent->firstChild; tWin != tChild; tWin = tWin->nextSib) {
if (tWin->pWin->viewable)
RegionSubtract(&totalClip, &totalClip, &tWin->pWin->borderSize);
}
RegionEmpty(&tParent->clipList);
}
else {
for (tWin = tChild; tWin; tWin = tWin->nextSib) {
if (tWin->valdata)
RegionAppend(&totalClip, &tWin->borderClip);
}
RegionValidate(&totalClip, &overlap);
}
if (kind != VTStack)
RegionUnion(&totalClip, &totalClip, &tParent->clipList);
for (tWin = tChild; tWin; tWin = tWin->nextSib) {
if (tWin->valdata) {
if (tWin->pWin->viewable) {
RegionIntersect(&childClip, &totalClip,
&tWin->pWin->borderSize);
miOverlayComputeClips(tWin->pWin, &childClip, kind, &exposed);
RegionSubtract(&totalClip, &totalClip, &tWin->pWin->borderSize);
}
else { /* Means we are unmapping */
RegionEmpty(&tWin->clipList);
RegionEmpty(&tWin->borderClip);
tWin->valdata = NULL;
}
}
}
RegionUninit(&childClip);
if (!((*pPriv->InOverlay) (newParent))) {
RegionNull(&tParent->valdata->exposed);
RegionNull(&tParent->valdata->borderExposed);
}
switch (kind) {
case VTStack:
break;
default:
if (!((*pPriv->InOverlay) (newParent)))
RegionSubtract(&tParent->valdata->exposed, &totalClip,
&tParent->clipList);
/* fall through */
case VTMap:
RegionCopy(&tParent->clipList, &totalClip);
if (!((*pPriv->InOverlay) (newParent)))
newParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
break;
}
RegionUninit(&totalClip);
RegionUninit(&exposed);
SKIP_UNDERLAY:
miValidateTree(pParent, pChild, kind);
return 1;
}
static void
miOverlayHandleExposures(WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
WindowPtr pChild;
ValidatePtr val;
WindowExposuresProcPtr WindowExposures;
WindowExposures = pWin->drawable.pScreen->WindowExposures;
if (pPriv->underlayMarked) {
miOverlayTreePtr pTree;
miOverlayValDataPtr mival;
pChild = pWin;
while (IN_OVERLAY(pChild))
pChild = pChild->parent;
pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
while (1) {
if ((mival = pTree->valdata)) {
if (!((*pPriv->InOverlay) (pTree->pWin))) {
if (RegionNotEmpty(&mival->borderExposed)) {
pScreen->PaintWindow(pTree->pWin, &mival->borderExposed,
PW_BORDER);
}
RegionUninit(&mival->borderExposed);
(*WindowExposures) (pTree->pWin, &mival->exposed);
RegionUninit(&mival->exposed);
}
free(mival);
pTree->valdata = NULL;
if (pTree->firstChild) {
pTree = pTree->firstChild;
continue;
}
}
while (!pTree->nextSib && (pTree->pWin != pChild))
pTree = pTree->parent;
if (pTree->pWin == pChild)
break;
pTree = pTree->nextSib;
}
pPriv->underlayMarked = FALSE;
}
pChild = pWin;
while (1) {
if ((val = pChild->valdata)) {
if (!((*pPriv->InOverlay) (pChild))) {
RegionUnion(&val->after.exposed, &val->after.exposed,
&val->after.borderExposed);
if (RegionNotEmpty(&val->after.exposed)) {
(*(MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent))
(pScreen, RegionNumRects(&val->after.exposed),
RegionRects(&val->after.exposed));
}
}
else {
if (RegionNotEmpty(&val->after.borderExposed)) {
pScreen->PaintWindow(pChild, &val->after.borderExposed,
PW_BORDER);
}
(*WindowExposures) (pChild, &val->after.exposed);
}
RegionUninit(&val->after.borderExposed);
RegionUninit(&val->after.exposed);
free(val);
pChild->valdata = NULL;
if (pChild->firstChild) {
pChild = pChild->firstChild;
continue;
}
}
while (!pChild->nextSib && (pChild != pWin))
pChild = pChild->parent;
if (pChild == pWin)
break;
pChild = pChild->nextSib;
}
}
static void
miOverlayMoveWindow(WindowPtr pWin,
int x, int y, WindowPtr pNextSib, VTKind kind)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
WindowPtr pParent, windowToValidate;
Bool WasViewable = (Bool) (pWin->viewable);
short bw;
RegionRec overReg, underReg;
DDXPointRec oldpt;
if (!(pParent = pWin->parent))
return;
bw = wBorderWidth(pWin);
oldpt.x = pWin->drawable.x;
oldpt.y = pWin->drawable.y;
if (WasViewable) {
RegionNull(&overReg);
RegionNull(&underReg);
if (pTree) {
RegionCopy(&overReg, &pWin->borderClip);
RegionCopy(&underReg, &pTree->borderClip);
}
else {
RegionCopy(&overReg, &pWin->borderClip);
CollectUnderlayChildrenRegions(pWin, &underReg);
}
(*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
}
pWin->origin.x = x + (int) bw;
pWin->origin.y = y + (int) bw;
x = pWin->drawable.x = pParent->drawable.x + x + (int) bw;
y = pWin->drawable.y = pParent->drawable.y + y + (int) bw;
SetWinSize(pWin);
SetBorderSize(pWin);
(*pScreen->PositionWindow) (pWin, x, y);
windowToValidate = MoveWindowInStack(pWin, pNextSib);
ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0);
if (WasViewable) {
miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
(*pScreen->MarkOverlappedWindows) (pWin, windowToValidate, NULL);
(*pScreen->ValidateTree) (pWin->parent, NullWindow, kind);
if (RegionNotEmpty(&underReg)) {
pPriv->copyUnderlay = TRUE;
(*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt, &underReg);
}
RegionUninit(&underReg);
if (RegionNotEmpty(&overReg)) {
pPriv->copyUnderlay = FALSE;
(*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt, &overReg);
}
RegionUninit(&overReg);
(*pScreen->HandleExposures) (pWin->parent);
if (pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pWin->parent, NullWindow, kind);
}
if (pWin->realized)
WindowsRestructured();
}
#ifndef RECTLIMIT
#define RECTLIMIT 25
#endif
static void
miOverlayWindowExposures(WindowPtr pWin, RegionPtr prgn)
{
RegionPtr exposures = prgn;
ScreenPtr pScreen = pWin->drawable.pScreen;
if (prgn && !RegionNil(prgn)) {
RegionRec expRec;
int clientInterested =
(pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask;
if (clientInterested && (RegionNumRects(prgn) > RECTLIMIT)) {
miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
BoxRec box;
box = *RegionExtents(prgn);
exposures = &expRec;
RegionInit(exposures, &box, 1);
RegionReset(prgn, &box);
/* This is the only reason why we are replacing mi's version
of this file */
if (!((*pPriv->InOverlay) (pWin))) {
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
RegionIntersect(prgn, prgn, &pTree->clipList);
}
else
RegionIntersect(prgn, prgn, &pWin->clipList);
}
pScreen->PaintWindow(pWin, prgn, PW_BACKGROUND);
if (clientInterested)
miSendExposures(pWin, exposures,
pWin->drawable.x, pWin->drawable.y);
if (exposures == &expRec)
RegionUninit(exposures);
RegionEmpty(prgn);
}
}
typedef struct {
RegionPtr over;
RegionPtr under;
} miOverlayTwoRegions;
static int
miOverlayRecomputeExposures(WindowPtr pWin, void *value)
{
miOverlayTwoRegions *pValid = (miOverlayTwoRegions *) value;
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
if (pWin->valdata) {
/*
* compute exposed regions of this window
*/
RegionSubtract(&pWin->valdata->after.exposed,
&pWin->clipList, pValid->over);
/*
* 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->over);
}
if (pTree && pTree->valdata) {
RegionSubtract(&pTree->valdata->exposed,
&pTree->clipList, pValid->under);
RegionSubtract(&pTree->valdata->borderExposed,
&pTree->borderClip, &pWin->winSize);
RegionSubtract(&pTree->valdata->borderExposed,
&pTree->valdata->borderExposed, pValid->under);
}
else if (!pWin->valdata)
return WT_NOMATCH;
return WT_WALKCHILDREN;
}
static void
miOverlayResizeWindow(WindowPtr pWin,
int x, int y,
unsigned int w, unsigned int h, WindowPtr pSib)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
WindowPtr pParent;
miOverlayTreePtr tChild, pTree;
Bool WasViewable = (Bool) (pWin->viewable);
unsigned short width = pWin->drawable.width;
unsigned short height = pWin->drawable.height;
short oldx = pWin->drawable.x;
short oldy = pWin->drawable.y;
int bw = wBorderWidth(pWin);
short dw, dh;
DDXPointRec oldpt;
RegionPtr oldRegion = NULL, oldRegion2 = NULL;
WindowPtr pFirstChange;
WindowPtr pChild;
RegionPtr gravitate[StaticGravity + 1];
RegionPtr gravitate2[StaticGravity + 1];
unsigned g;
int nx, ny; /* destination x,y */
int newx, newy; /* new inner window position */
RegionPtr pRegion = NULL;
RegionPtr destClip, destClip2;
RegionPtr oldWinClip = NULL, oldWinClip2 = NULL;
RegionPtr borderVisible = NullRegion;
RegionPtr borderVisible2 = NullRegion;
Bool shrunk = FALSE; /* shrunk in an inner dimension */
Bool moved = FALSE; /* window position changed */
Bool doUnderlay;
/* if this is a root window, can't be resized */
if (!(pParent = pWin->parent))
return;
pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
doUnderlay = ((pTree) || HasUnderlayChildren(pWin));
newx = pParent->drawable.x + x + bw;
newy = pParent->drawable.y + y + bw;
if (WasViewable) {
/*
* save the visible region of the window
*/
oldRegion = RegionCreate(NullBox, 1);
RegionCopy(oldRegion, &pWin->winSize);
if (doUnderlay) {
oldRegion2 = RegionCreate(NullBox, 1);
RegionCopy(oldRegion2, &pWin->winSize);
}
/*
* categorize child windows into regions to be moved
*/
for (g = 0; g <= StaticGravity; g++)
gravitate[g] = gravitate2[g] = 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);
if (doUnderlay) {
if (!gravitate2[g])
gravitate2[g] = RegionCreate(NullBox, 0);
if ((tChild = MIOVERLAY_GET_WINDOW_TREE(pChild))) {
RegionUnion(gravitate2[g],
gravitate2[g], &tChild->borderClip);
}
else
CollectUnderlayChildrenRegions(pChild, gravitate2[g]);
}
}
else {
UnmapWindow(pChild, TRUE);
}
}
(*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
oldWinClip = oldWinClip2 = NULL;
if (pWin->bitGravity != ForgetGravity) {
oldWinClip = RegionCreate(NullBox, 1);
RegionCopy(oldWinClip, &pWin->clipList);
if (pTree) {
oldWinClip2 = RegionCreate(NullBox, 1);
RegionCopy(oldWinClip2, &pTree->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);
if (pTree)
borderVisible2 = 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);
if (pTree) {
if (shrunk || moved)
RegionSubtract(borderVisible,
&pTree->borderClip, &pWin->winSize);
else
RegionCopy(borderVisible, &pTree->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);
(*pScreen->MarkOverlappedWindows) (pWin, pFirstChange, NULL);
pWin->valdata->before.resized = TRUE;
pWin->valdata->before.borderVisible = borderVisible;
if (pTree)
pTree->valdata->borderVisible = borderVisible2;
(*pScreen->ValidateTree) (pWin->parent, pFirstChange, VTOther);
/*
* the entire window is trashed unless bitGravity
* recovers portions of it
*/
RegionCopy(&pWin->valdata->after.exposed, &pWin->clipList);
if (pTree)
RegionCopy(&pTree->valdata->exposed, &pTree->clipList);
}
GravityTranslate(x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);
if (WasViewable) {
miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
miOverlayTwoRegions TwoRegions;
/* 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] && !gravitate2[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;
}
if (gravitate[g])
RegionIntersect(gravitate[g], gravitate[g], &pWin->winSize);
if (gravitate2[g])
RegionIntersect(gravitate2[g], gravitate2[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 (oldWinClip2) {
RegionCopy(pRegion, oldWinClip2);
RegionTranslate(pRegion, nx - oldx, ny - oldy);
RegionIntersect(oldWinClip2, pRegion, &pTree->clipList);
for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {
if (gravitate2[g])
RegionSubtract(oldWinClip2, oldWinClip2, gravitate2[g]);
}
RegionTranslate(oldWinClip2, oldx - nx, oldy - ny);
g = pWin->bitGravity;
if (!gravitate2[g])
gravitate2[g] = oldWinClip2;
else {
RegionUnion(gravitate2[g], gravitate2[g], oldWinClip2);
RegionDestroy(oldWinClip2);
}
}
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 = destClip2 = NULL;
for (g = 0; g <= StaticGravity; g++) {
if (!gravitate[g] && !gravitate2[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 */
if (gravitate[g])
RegionIntersect(gravitate[g], gravitate[g], oldRegion);
if (gravitate2[g])
RegionIntersect(gravitate2[g], gravitate2[g], oldRegion2);
/* clip to not overwrite already copied areas */
if (destClip && gravitate[g]) {
RegionTranslate(destClip, oldpt.x - x, oldpt.y - y);
RegionSubtract(gravitate[g], gravitate[g], destClip);
RegionTranslate(destClip, x - oldpt.x, y - oldpt.y);
}
if (destClip2 && gravitate2[g]) {
RegionTranslate(destClip2, oldpt.x - x, oldpt.y - y);
RegionSubtract(gravitate2[g], gravitate2[g], destClip2);
RegionTranslate(destClip2, x - oldpt.x, y - oldpt.y);
}
/* and move those bits */
if (oldpt.x != x || oldpt.y != y) {
if (gravitate2[g]) {
pPriv->copyUnderlay = TRUE;
(*pScreen->CopyWindow) (pWin, oldpt, gravitate2[g]);
}
if (gravitate[g]) {
pPriv->copyUnderlay = FALSE;
(*pScreen->CopyWindow) (pWin, oldpt, gravitate[g]);
}
}
/* remove any overwritten bits from the remaining useful bits */
if (gravitate[g])
RegionSubtract(oldRegion, oldRegion, gravitate[g]);
if (gravitate2[g])
RegionSubtract(oldRegion2, oldRegion2, gravitate2[g]);
/*
* recompute exposed regions of child windows
*/
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
if (pChild->winGravity != g)
continue;
TwoRegions.over = gravitate[g];
TwoRegions.under = gravitate2[g];
TraverseTree(pChild, miOverlayRecomputeExposures,
(void *) (&TwoRegions));
}
/*
* remove the successfully copied regions of the
* window from its exposed region
*/
if (g == pWin->bitGravity) {
if (gravitate[g])
RegionSubtract(&pWin->valdata->after.exposed,
&pWin->valdata->after.exposed, gravitate[g]);
if (gravitate2[g] && pTree)
RegionSubtract(&pTree->valdata->exposed,
&pTree->valdata->exposed, gravitate2[g]);
}
if (gravitate[g]) {
if (!destClip)
destClip = gravitate[g];
else {
RegionUnion(destClip, destClip, gravitate[g]);
RegionDestroy(gravitate[g]);
}
}
if (gravitate2[g]) {
if (!destClip2)
destClip2 = gravitate2[g];
else {
RegionUnion(destClip2, destClip2, gravitate2[g]);
RegionDestroy(gravitate2[g]);
}
}
}
RegionDestroy(pRegion);
RegionDestroy(oldRegion);
if (doUnderlay)
RegionDestroy(oldRegion2);
if (destClip)
RegionDestroy(destClip);
if (destClip2)
RegionDestroy(destClip2);
(*pScreen->HandleExposures) (pWin->parent);
if (pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pWin->parent, pFirstChange, VTOther);
}
if (pWin->realized)
WindowsRestructured();
}
static void
miOverlaySetShape(WindowPtr pWin, int kind)
{
Bool WasViewable = (Bool) (pWin->viewable);
ScreenPtr pScreen = pWin->drawable.pScreen;
if (kind != ShapeInput) {
if (WasViewable) {
(*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
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;
if (IN_UNDERLAY(pWin)) {
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
RegionPtr borderVisible2;
borderVisible2 = RegionCreate(NULL, 1);
RegionSubtract(borderVisible2,
&pTree->borderClip, &pWin->winSize);
pTree->valdata->borderVisible = borderVisible2;
}
}
}
SetWinSize(pWin);
SetBorderSize(pWin);
ResizeChildrenWinSize(pWin, 0, 0, 0, 0);
if (WasViewable) {
(*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
(*pScreen->ValidateTree) (pWin->parent, NullWindow, VTOther);
(*pScreen->HandleExposures) (pWin->parent);
if (pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pWin->parent, NullWindow,
VTOther);
}
}
if (pWin->realized)
WindowsRestructured();
CheckCursorConfinement(pWin);
}
static void
miOverlayChangeBorderWidth(WindowPtr pWin, unsigned int width)
{
int oldwidth;
ScreenPtr pScreen;
Bool WasViewable = (Bool) (pWin->viewable);
Bool HadBorder;
oldwidth = wBorderWidth(pWin);
if (oldwidth == width)
return;
HadBorder = HasBorder(pWin);
pScreen = pWin->drawable.pScreen;
if (WasViewable && (width < oldwidth))
(*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
pWin->borderWidth = width;
SetBorderSize(pWin);
if (WasViewable) {
if (width > oldwidth) {
(*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
if (HadBorder) {
RegionPtr borderVisible;
borderVisible = RegionCreate(NULL, 1);
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
pWin->valdata->before.borderVisible = borderVisible;
if (IN_UNDERLAY(pWin)) {
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
RegionPtr borderVisible2;
borderVisible2 = RegionCreate(NULL, 1);
RegionSubtract(borderVisible2,
&pTree->borderClip, &pWin->winSize);
pTree->valdata->borderVisible = borderVisible2;
}
}
}
(*pScreen->ValidateTree) (pWin->parent, pWin, VTOther);
(*pScreen->HandleExposures) (pWin->parent);
if (pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pWin->parent, pWin, VTOther);
}
if (pWin->realized)
WindowsRestructured();
}
/* We need this as an addition since the xf86 common code doesn't
know about the second tree which is static to this file. */
void
miOverlaySetRootClip(ScreenPtr pScreen, Bool enable)
{
WindowPtr pRoot = pScreen->root;
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pRoot);
MARK_UNDERLAY(pRoot);
if (enable) {
BoxRec box;
box.x1 = 0;
box.y1 = 0;
box.x2 = pScreen->width;
box.y2 = pScreen->height;
RegionReset(&pTree->borderClip, &box);
}
else
RegionEmpty(&pTree->borderClip);
RegionBreak(&pTree->clipList);
}
static void
miOverlayClearToBackground(WindowPtr pWin,
int x, int y, int w, int h, Bool generateExposures)
{
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
BoxRec box;
RegionRec reg;
ScreenPtr pScreen = pWin->drawable.pScreen;
miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
RegionPtr clipList;
BoxPtr extents;
int x1, y1, x2, y2;
x1 = pWin->drawable.x + x;
y1 = pWin->drawable.y + y;
if (w)
x2 = x1 + (int) w;
else
x2 = x1 + (int) pWin->drawable.width - (int) x;
if (h)
y2 = y1 + h;
else
y2 = y1 + (int) pWin->drawable.height - (int) y;
clipList = ((*pScreenPriv->InOverlay) (pWin)) ? &pWin->clipList :
&pTree->clipList;
extents = RegionExtents(clipList);
if (x1 < extents->x1)
x1 = extents->x1;
if (x2 > extents->x2)
x2 = extents->x2;
if (y1 < extents->y1)
y1 = extents->y1;
if (y2 > extents->y2)
y2 = extents->y2;
if (x2 <= x1 || y2 <= y1)
x2 = x1 = y2 = y1 = 0;
box.x1 = x1;
box.x2 = x2;
box.y1 = y1;
box.y2 = y2;
RegionInit(&reg, &box, 1);
RegionIntersect(&reg, &reg, clipList);
if (generateExposures)
(*pScreen->WindowExposures) (pWin, &reg);
else if (pWin->backgroundState != None)
pScreen->PaintWindow(pWin, &reg, PW_BACKGROUND);
RegionUninit(&reg);
}
/****************************************************************/
/* not used */
Bool
miOverlayGetPrivateClips(WindowPtr pWin,
RegionPtr *borderClip, RegionPtr *clipList)
{
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
if (pTree) {
*borderClip = &(pTree->borderClip);
*clipList = &(pTree->clipList);
return TRUE;
}
*borderClip = *clipList = NULL;
return FALSE;
}
Bool
miOverlayCopyUnderlay(ScreenPtr pScreen)
{
return MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->copyUnderlay;
}
void
miOverlayComputeCompositeClip(GCPtr pGC, WindowPtr pWin)
{
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
RegionPtr pregWin;
Bool freeTmpClip, freeCompClip;
if (!pTree) {
miComputeCompositeClip(pGC, &pWin->drawable);
return;
}
if (pGC->subWindowMode == IncludeInferiors) {
pregWin = RegionCreate(NullBox, 1);
freeTmpClip = TRUE;
if (pWin->parent || (screenIsSaved != SCREEN_SAVER_ON) ||
!HasSaverWindow(pGC->pScreen)) {
RegionIntersect(pregWin, &pTree->borderClip, &pWin->winSize);
}
}
else {
pregWin = &pTree->clipList;
freeTmpClip = FALSE;
}
freeCompClip = pGC->freeCompClip;
if (!pGC->clientClip) {
if (freeCompClip)
RegionDestroy(pGC->pCompositeClip);
pGC->pCompositeClip = pregWin;
pGC->freeCompClip = freeTmpClip;
}
else {
RegionTranslate(pGC->clientClip,
pWin->drawable.x + pGC->clipOrg.x,
pWin->drawable.y + pGC->clipOrg.y);
if (freeCompClip) {
RegionIntersect(pGC->pCompositeClip, pregWin, pGC->clientClip);
if (freeTmpClip)
RegionDestroy(pregWin);
}
else if (freeTmpClip) {
RegionIntersect(pregWin, pregWin, pGC->clientClip);
pGC->pCompositeClip = pregWin;
}
else {
pGC->pCompositeClip = RegionCreate(NullBox, 0);
RegionIntersect(pGC->pCompositeClip, pregWin, pGC->clientClip);
}
pGC->freeCompClip = TRUE;
RegionTranslate(pGC->clientClip,
-(pWin->drawable.x + pGC->clipOrg.x),
-(pWin->drawable.y + pGC->clipOrg.y));
}
}
Bool
miOverlayCollectUnderlayRegions(WindowPtr pWin, RegionPtr *region)
{
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
if (pTree) {
*region = &pTree->borderClip;
return FALSE;
}
*region = RegionCreate(NullBox, 0);
CollectUnderlayChildrenRegions(pWin, *region);
return TRUE;
}
static miOverlayTreePtr
DoLeaf(WindowPtr pWin, miOverlayTreePtr parent, miOverlayTreePtr prevSib)
{
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
pTree->parent = parent;
pTree->firstChild = NULL;
pTree->lastChild = NULL;
pTree->prevSib = prevSib;
pTree->nextSib = NULL;
if (prevSib)
prevSib->nextSib = pTree;
if (!parent->firstChild)
parent->firstChild = parent->lastChild = pTree;
else if (parent->lastChild == prevSib)
parent->lastChild = pTree;
return pTree;
}
static void
RebuildTree(WindowPtr pWin)
{
miOverlayTreePtr parent, prevSib, tChild;
WindowPtr pChild;
prevSib = tChild = NULL;
pWin = pWin->parent;
while (IN_OVERLAY(pWin))
pWin = pWin->parent;
parent = MIOVERLAY_GET_WINDOW_TREE(pWin);
pChild = pWin->firstChild;
parent->firstChild = parent->lastChild = NULL;
while (1) {
if (IN_UNDERLAY(pChild))
prevSib = tChild = DoLeaf(pChild, parent, prevSib);
if (pChild->firstChild) {
if (IN_UNDERLAY(pChild)) {
parent = tChild;
prevSib = NULL;
}
pChild = pChild->firstChild;
continue;
}
while (!pChild->nextSib) {
pChild = pChild->parent;
if (pChild == pWin)
return;
if (IN_UNDERLAY(pChild)) {
prevSib = tChild = MIOVERLAY_GET_WINDOW_TREE(pChild);
parent = tChild->parent;
}
}
pChild = pChild->nextSib;
}
}
static Bool
HasUnderlayChildren(WindowPtr pWin)
{
WindowPtr pChild;
if (!(pChild = pWin->firstChild))
return FALSE;
while (1) {
if (IN_UNDERLAY(pChild))
return TRUE;
if (pChild->firstChild) {
pChild = pChild->firstChild;
continue;
}
while (!pChild->nextSib && (pWin != pChild))
pChild = pChild->parent;
if (pChild == pWin)
break;
pChild = pChild->nextSib;
}
return FALSE;
}
static Bool
CollectUnderlayChildrenRegions(WindowPtr pWin, RegionPtr pReg)
{
WindowPtr pChild;
miOverlayTreePtr pTree;
Bool hasUnderlay;
if (!(pChild = pWin->firstChild))
return FALSE;
hasUnderlay = FALSE;
while (1) {
if ((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) {
RegionAppend(pReg, &pTree->borderClip);
hasUnderlay = TRUE;
}
else if (pChild->firstChild) {
pChild = pChild->firstChild;
continue;
}
while (!pChild->nextSib && (pWin != pChild))
pChild = pChild->parent;
if (pChild == pWin)
break;
pChild = pChild->nextSib;
}
if (hasUnderlay) {
Bool overlap;
RegionValidate(pReg, &overlap);
}
return hasUnderlay;
}
static void
MarkUnderlayWindow(WindowPtr pWin)
{
miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
if (pTree->valdata)
return;
pTree->valdata =
(miOverlayValDataPtr) XNFalloc(sizeof(miOverlayValDataRec));
pTree->valdata->oldAbsCorner.x = pWin->drawable.x;
pTree->valdata->oldAbsCorner.y = pWin->drawable.y;
pTree->valdata->borderVisible = NullRegion;
}
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