From c38dead3ea7e177728d90cd815cf4eead0c9f534 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 15 May 2010 16:28:11 +0000 Subject: xserver git update 15/5/2010 --- xorg-server/mi/mioverlay.c | 3896 ++++++++++++++++++++++---------------------- 1 file changed, 1948 insertions(+), 1948 deletions(-) (limited to 'xorg-server/mi/mioverlay.c') diff --git a/xorg-server/mi/mioverlay.c b/xorg-server/mi/mioverlay.c index e0aa88017..3de826b74 100644 --- a/xorg-server/mi/mioverlay.c +++ b/xorg-server/mi/mioverlay.c @@ -1,1948 +1,1948 @@ - -#ifdef HAVE_DIX_CONFIG_H -#include -#endif - -#include -#include "scrnintstr.h" -#include "validate.h" -#include "windowstr.h" -#include "mi.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 { - CloseScreenProcPtr CloseScreen; - CreateWindowProcPtr CreateWindow; - DestroyWindowProcPtr DestroyWindow; - UnrealizeWindowProcPtr UnrealizeWindow; - RealizeWindowProcPtr RealizeWindow; - miOverlayTransFunc MakeTransparent; - miOverlayInOverlayFunc InOverlay; - Bool underlayMarked; - Bool copyUnderlay; -} miOverlayScreenRec, *miOverlayScreenPtr; - -static int miOverlayWindowKeyKeyIndex; -static DevPrivateKey miOverlayWindowKey = &miOverlayWindowKeyKeyIndex; -static int miOverlayScreenKeyIndex; -static DevPrivateKey miOverlayScreenKey = &miOverlayScreenKeyIndex; - -static void RebuildTree(WindowPtr); -static Bool HasUnderlayChildren(WindowPtr); -static void MarkUnderlayWindow(WindowPtr); -static Bool CollectUnderlayChildrenRegions(WindowPtr, RegionPtr); - -static Bool miOverlayCloseScreen(int, ScreenPtr); -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, 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); -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(!dixRequestPrivate(miOverlayWindowKey, sizeof(miOverlayWindowRec))) - return FALSE; - - if(!(pScreenPriv = xalloc(sizeof(miOverlayScreenRec)))) - return FALSE; - - dixSetPrivate(&pScreen->devPrivates, miOverlayScreenKey, pScreenPriv); - - pScreenPriv->InOverlay = inOverlayFunc; - pScreenPriv->MakeTransparent = transFunc; - pScreenPriv->underlayMarked = FALSE; - - - pScreenPriv->CloseScreen = pScreen->CloseScreen; - pScreenPriv->CreateWindow = pScreen->CreateWindow; - pScreenPriv->DestroyWindow = pScreen->DestroyWindow; - pScreenPriv->UnrealizeWindow = pScreen->UnrealizeWindow; - pScreenPriv->RealizeWindow = pScreen->RealizeWindow; - - pScreen->CloseScreen = miOverlayCloseScreen; - 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 Bool -miOverlayCloseScreen(int i, ScreenPtr pScreen) -{ - miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen); - - pScreen->CloseScreen = pScreenPriv->CloseScreen; - pScreen->CreateWindow = pScreenPriv->CreateWindow; - pScreen->DestroyWindow = pScreenPriv->DestroyWindow; - pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow; - pScreen->RealizeWindow = pScreenPriv->RealizeWindow; - - xfree(pScreenPriv); - - return (*pScreen->CloseScreen)(i, pScreen); -} - - -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)xcalloc(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) { - REGION_NULL(pScreen, &(pTree->borderClip)); - REGION_NULL(pScreen, &(pTree->clipList)); - RebuildTree(pWin); - } else { - BoxRec fullBox; - fullBox.x1 = 0; - fullBox.y1 = 0; - fullBox.x2 = pScreen->width; - fullBox.y2 = pScreen->height; - REGION_INIT(pScreen, &(pTree->borderClip), &fullBox, 1); - REGION_INIT(pScreen, &(pTree->clipList), &fullBox, 1); - } - } else xfree(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; - - REGION_UNINIT(pScreen, &(pTree->borderClip)); - REGION_UNINIT(pScreen, &(pTree->clipList)); - xfree(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(WindowTable[pWin->drawable.pScreen->myNum]->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 -){ - ScreenPtr pScreen = pWin->drawable.pScreen; - 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 = REGION_EXTENTS(pScreen, &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 (REGION_BROKEN (pScreen, &pChild->winSize)) - SetWinSize (pChild); - if (REGION_BROKEN (pScreen, &pChild->borderSize)) - SetBorderSize (pChild); - - if (markAll || - RECT_IN_REGION(pScreen, &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 (REGION_BROKEN (pScreen, &tChild->pWin->winSize)) - SetWinSize (tChild->pWin); - if (REGION_BROKEN (pScreen, &tChild->pWin->borderSize)) - SetBorderSize (tChild->pWin); - - if(RECT_IN_REGION(pScreen, &(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) { - 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 (RECT_IN_REGION( pScreen, universe, &borderSize)) { - case rgnIN: - newVis = VisibilityUnobscured; - break; - case rgnPART: - newVis = VisibilityPartiallyObscured; - { - RegionPtr pBounding; - - if ((pBounding = wBoundingShape (pParent))) { - switch (miShapedWindowIn (pScreen, 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) { - REGION_TRANSLATE( pScreen, &tChild->borderClip, dx, dy); - REGION_TRANSLATE( pScreen, &tChild->clipList, dx, dy); - - tChild->pWin->drawable.serialNumber = - NEXT_SERIAL_NUMBER; - if (pScreen->ClipNotify) - (* pScreen->ClipNotify) (tChild->pWin, dx, dy); - } - if (tChild->valdata) { - REGION_NULL(pScreen, &tChild->valdata->borderExposed); - if (HasParentRelativeBorder(tChild->pWin)){ - REGION_SUBTRACT(pScreen, - &tChild->valdata->borderExposed, - &tChild->borderClip, - &tChild->pWin->winSize); - } - REGION_NULL(pScreen, &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) { - REGION_TRANSLATE( pScreen, &tParent->borderClip, dx, dy); - REGION_TRANSLATE( pScreen, &tParent->clipList, dx, dy); - } - break; - case VTBroken: - REGION_EMPTY (pScreen, &tParent->borderClip); - REGION_EMPTY (pScreen, &tParent->clipList); - break; - } - - borderVisible = tParent->valdata->borderVisible; - REGION_NULL(pScreen, &tParent->valdata->borderExposed); - REGION_NULL(pScreen, &tParent->valdata->exposed); - - if (HasBorder (pParent)) { - if (borderVisible) { - REGION_SUBTRACT( pScreen, exposed, universe, borderVisible); - REGION_DESTROY( pScreen, borderVisible); - } else - REGION_SUBTRACT( pScreen, exposed, universe, &tParent->borderClip); - - if (HasParentRelativeBorder(pParent) && (dx || dy)) - REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed, - universe, &pParent->winSize); - else - REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed, - exposed, &pParent->winSize); - - REGION_COPY( pScreen, &tParent->borderClip, universe); - REGION_INTERSECT( pScreen, universe, universe, &pParent->winSize); - } - else - REGION_COPY( pScreen, &tParent->borderClip, universe); - - if ((tChild = tParent->firstChild) && pParent->mapped) { - REGION_NULL(pScreen, &childUniverse); - REGION_NULL(pScreen, &childUnion); - - for (; tChild; tChild = tChild->nextSib) { - if (tChild->pWin->viewable) - REGION_APPEND( pScreen, &childUnion, &tChild->pWin->borderSize); - } - - REGION_VALIDATE( pScreen, &childUnion, &overlap); - - for (tChild = tParent->firstChild; - tChild; - tChild = tChild->nextSib) - { - if (tChild->pWin->viewable) { - if (tChild->valdata) { - REGION_INTERSECT( pScreen, &childUniverse, universe, - &tChild->pWin->borderSize); - miOverlayComputeClips (tChild->pWin, &childUniverse, - kind, exposed); - } - if (overlap) - REGION_SUBTRACT( pScreen, universe, universe, - &tChild->pWin->borderSize); - } - } - if (!overlap) - REGION_SUBTRACT( pScreen, universe, universe, &childUnion); - REGION_UNINIT( pScreen, &childUnion); - REGION_UNINIT( pScreen, &childUniverse); - } - - if (oldVis == VisibilityFullyObscured || - oldVis == VisibilityNotViewable) - { - REGION_COPY( pScreen, &tParent->valdata->exposed, universe); - } - else if (newVis != VisibilityFullyObscured && - newVis != VisibilityNotViewable) - { - REGION_SUBTRACT( pScreen, &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; - - REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList); - if (pChild->drawable.pScreen->ClipNotify) - (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0); - REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip); - if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) { - if(pTree->valdata != (miOverlayValDataPtr)UnmapValData) { - REGION_EMPTY(pChild->drawable.pScreen, &pTree->clipList); - REGION_EMPTY(pChild->drawable.pScreen, &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; - - REGION_NULL(pScreen, &totalClip); - REGION_NULL(pScreen, &childClip); - REGION_NULL(pScreen, &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 (REGION_BROKEN (pScreen, &tParent->clipList) && - !REGION_BROKEN (pScreen, &tParent->borderClip)) - { - kind = VTBroken; - REGION_COPY (pScreen, &totalClip, &tParent->borderClip); - REGION_INTERSECT (pScreen, &totalClip, &totalClip, - &tParent->pWin->winSize); - - for (tWin = tParent->firstChild; tWin != tChild; tWin = tWin->nextSib) { - if (tWin->pWin->viewable) - REGION_SUBTRACT (pScreen, &totalClip, &totalClip, - &tWin->pWin->borderSize); - } - REGION_EMPTY (pScreen, &tParent->clipList); - } else { - for(tWin = tChild; tWin; tWin = tWin->nextSib) { - if(tWin->valdata) - REGION_APPEND(pScreen, &totalClip, &tWin->borderClip); - } - REGION_VALIDATE(pScreen, &totalClip, &overlap); - } - - if(kind != VTStack) - REGION_UNION(pScreen, &totalClip, &totalClip, &tParent->clipList); - - for(tWin = tChild; tWin; tWin = tWin->nextSib) { - if(tWin->valdata) { - if(tWin->pWin->viewable) { - REGION_INTERSECT(pScreen, &childClip, &totalClip, - &tWin->pWin->borderSize); - miOverlayComputeClips(tWin->pWin, &childClip, kind, &exposed); - REGION_SUBTRACT(pScreen, &totalClip, &totalClip, - &tWin->pWin->borderSize); - } else { /* Means we are unmapping */ - REGION_EMPTY(pScreen, &tWin->clipList); - REGION_EMPTY( pScreen, &tWin->borderClip); - tWin->valdata = NULL; - } - } - } - - REGION_UNINIT(pScreen, &childClip); - - if(!((*pPriv->InOverlay)(newParent))) { - REGION_NULL(pScreen, &tParent->valdata->exposed); - REGION_NULL(pScreen, &tParent->valdata->borderExposed); - } - - switch (kind) { - case VTStack: - break; - default: - if(!((*pPriv->InOverlay)(newParent))) - REGION_SUBTRACT(pScreen, &tParent->valdata->exposed, &totalClip, - &tParent->clipList); - /* fall through */ - case VTMap: - REGION_COPY( pScreen, &tParent->clipList, &totalClip); - if(!((*pPriv->InOverlay)(newParent))) - newParent->drawable.serialNumber = NEXT_SERIAL_NUMBER; - break; - } - - REGION_UNINIT( pScreen, &totalClip); - REGION_UNINIT( pScreen, &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; - void (* WindowExposures)(WindowPtr, RegionPtr, RegionPtr); - - 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 (REGION_NOTEMPTY(pScreen, &mival->borderExposed)) { - miPaintWindow(pTree->pWin, &mival->borderExposed, - PW_BORDER); - } - REGION_UNINIT(pScreen, &mival->borderExposed); - - (*WindowExposures)(pTree->pWin,&mival->exposed,NullRegion); - REGION_UNINIT(pScreen, &mival->exposed); - } - xfree(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))) { - REGION_UNION(pScreen, &val->after.exposed, &val->after.exposed, - &val->after.borderExposed); - - if (REGION_NOTEMPTY(pScreen, &val->after.exposed)) { - (*(MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent))( - pScreen, - REGION_NUM_RECTS(&val->after.exposed), - REGION_RECTS(&val->after.exposed)); - } - } else { - if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed)) { - miPaintWindow(pChild, &val->after.borderExposed, - PW_BORDER); - } - (*WindowExposures)(pChild, &val->after.exposed, NullRegion); - } - REGION_UNINIT(pScreen, &val->after.borderExposed); - REGION_UNINIT(pScreen, &val->after.exposed); - xfree(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) { - REGION_NULL(pScreen, &overReg); - REGION_NULL(pScreen, &underReg); - if(pTree) { - REGION_COPY(pScreen, &overReg, &pWin->borderClip); - REGION_COPY(pScreen, &underReg, &pTree->borderClip); - } else { - REGION_COPY(pScreen, &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(REGION_NOTEMPTY(pScreen, &underReg)) { - pPriv->copyUnderlay = TRUE; - (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &underReg); - } - REGION_UNINIT(pScreen, &underReg); - if(REGION_NOTEMPTY(pScreen, &overReg)) { - pPriv->copyUnderlay = FALSE; - (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &overReg); - } - REGION_UNINIT(pScreen, &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 other_exposed -){ - RegionPtr exposures = prgn; - ScreenPtr pScreen = pWin->drawable.pScreen; - - if ((prgn && !REGION_NIL(prgn)) || - (exposures && !REGION_NIL(exposures)) || other_exposed) - { - RegionRec expRec; - int clientInterested; - - clientInterested = (pWin->eventMask|wOtherEventMasks(pWin)) & - ExposureMask; - if (other_exposed) { - if (exposures) { - REGION_UNION(pScreen, other_exposed, exposures, other_exposed); - if (exposures != prgn) - REGION_DESTROY(pScreen, exposures); - } - exposures = other_exposed; - } - if (clientInterested && exposures && - (REGION_NUM_RECTS(exposures) > RECTLIMIT)) - { - miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen); - BoxRec box; - - box = *REGION_EXTENTS(pScreen, exposures); - if (exposures == prgn) { - exposures = &expRec; - REGION_INIT(pScreen, exposures, &box, 1); - REGION_RESET(pScreen, prgn, &box); - } else { - REGION_RESET(pScreen, exposures, &box); - REGION_UNION(pScreen, prgn, prgn, exposures); - } - /* 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); - REGION_INTERSECT(pScreen, prgn, prgn, &pTree->clipList); - } else - REGION_INTERSECT(pScreen, prgn, prgn, &pWin->clipList); - } - if (prgn && !REGION_NIL(prgn)) - miPaintWindow(pWin, prgn, PW_BACKGROUND); - if (clientInterested && exposures && !REGION_NIL(exposures)) - miSendExposures(pWin, exposures, - pWin->drawable.x, pWin->drawable.y); - if (exposures == &expRec) { - REGION_UNINIT(pScreen, exposures); - } - else if (exposures && exposures != prgn && exposures != other_exposed) - REGION_DESTROY(pScreen, exposures); - if (prgn) - REGION_EMPTY(pScreen, prgn); - } - else if (exposures && exposures != prgn) - REGION_DESTROY(pScreen, exposures); -} - - -typedef struct { - RegionPtr over; - RegionPtr under; -} miOverlayTwoRegions; - -static int -miOverlayRecomputeExposures ( - WindowPtr pWin, - pointer value -){ - ScreenPtr pScreen; - miOverlayTwoRegions *pValid = (miOverlayTwoRegions*)value; - miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin); - - /* This prevents warning about pScreen not being used. */ - pWin->drawable.pScreen = pScreen = pWin->drawable.pScreen; - - if (pWin->valdata) { - /* - * compute exposed regions of this window - */ - REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed, - &pWin->clipList, pValid->over); - /* - * compute exposed regions of the border - */ - REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed, - &pWin->borderClip, &pWin->winSize); - REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed, - &pWin->valdata->after.borderExposed, pValid->over); - } - - if(pTree && pTree->valdata) { - REGION_SUBTRACT(pScreen, &pTree->valdata->exposed, - &pTree->clipList, pValid->under); - REGION_SUBTRACT(pScreen, &pTree->valdata->borderExposed, - &pTree->borderClip, &pWin->winSize); - REGION_SUBTRACT(pScreen, &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 = REGION_CREATE(pScreen, NullBox, 1); - REGION_COPY(pScreen, oldRegion, &pWin->winSize); - if(doUnderlay) { - oldRegion2 = REGION_CREATE(pScreen, NullBox, 1); - REGION_COPY(pScreen, 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] = REGION_CREATE(pScreen, NullBox, 1); - REGION_UNION(pScreen, gravitate[g], - gravitate[g], &pChild->borderClip); - - if(doUnderlay) { - if (!gravitate2[g]) - gravitate2[g] = REGION_CREATE(pScreen, NullBox, 0); - - if((tChild = MIOVERLAY_GET_WINDOW_TREE(pChild))) { - REGION_UNION(pScreen, 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 = REGION_CREATE(pScreen, NullBox, 1); - REGION_COPY(pScreen, oldWinClip, &pWin->clipList); - if(pTree) { - oldWinClip2 = REGION_CREATE(pScreen, NullBox, 1); - REGION_COPY(pScreen, 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 = REGION_CREATE(pScreen, NullBox, 1); - if(pTree) - borderVisible2 = REGION_CREATE(pScreen, NullBox, 1); - /* for tiled borders, we punt and draw the whole thing */ - if (pWin->borderIsPixel || !moved) - { - if (shrunk || moved) - REGION_SUBTRACT(pScreen, borderVisible, - &pWin->borderClip, - &pWin->winSize); - else - REGION_COPY(pScreen, borderVisible, - &pWin->borderClip); - if(pTree) { - if (shrunk || moved) - REGION_SUBTRACT(pScreen, borderVisible, - &pTree->borderClip, - &pWin->winSize); - else - REGION_COPY(pScreen, 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 = REGION_CREATE(pScreen, 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 - */ - REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList); - if(pTree) - REGION_COPY(pScreen, &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) { - REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy); - offx += dx; - offy += dy; - } - if(gravitate[g]) - REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], - &pWin->winSize); - if(gravitate2[g]) - REGION_INTERSECT(pScreen, gravitate2[g], gravitate2[g], - &pWin->winSize); - } - /* get winSize back where it belongs */ - if (offx || offy) - REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy); - } - /* - * add screen bits to the appropriate bucket - */ - - if (oldWinClip2) - { - REGION_COPY(pScreen, pRegion, oldWinClip2); - REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy); - REGION_INTERSECT(pScreen, oldWinClip2, pRegion, &pTree->clipList); - - for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) { - if (gravitate2[g]) - REGION_SUBTRACT(pScreen, oldWinClip2, oldWinClip2, - gravitate2[g]); - } - REGION_TRANSLATE(pScreen, oldWinClip2, oldx - nx, oldy - ny); - g = pWin->bitGravity; - if (!gravitate2[g]) - gravitate2[g] = oldWinClip2; - else { - REGION_UNION(pScreen,gravitate2[g],gravitate2[g],oldWinClip2); - REGION_DESTROY(pScreen, oldWinClip2); - } - } - - if (oldWinClip) - { - /* - * clip to new clipList - */ - REGION_COPY(pScreen, pRegion, oldWinClip); - REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy); - REGION_INTERSECT(pScreen, 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]) - REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip, - gravitate[g]); - } - REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny); - g = pWin->bitGravity; - if (!gravitate[g]) - gravitate[g] = oldWinClip; - else { - REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip); - REGION_DESTROY(pScreen, 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]) - REGION_INTERSECT(pScreen, gravitate[g], - gravitate[g], oldRegion); - if(gravitate2[g]) - REGION_INTERSECT(pScreen, gravitate2[g], - gravitate2[g], oldRegion2); - - /* clip to not overwrite already copied areas */ - - if (destClip && gravitate[g]) { - REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y); - REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip); - REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y); - } - if (destClip2 && gravitate2[g]) { - REGION_TRANSLATE(pScreen, destClip2, oldpt.x - x, oldpt.y - y); - REGION_SUBTRACT(pScreen,gravitate2[g],gravitate2[g],destClip2); - REGION_TRANSLATE(pScreen, destClip2, x - oldpt.x, y - oldpt.y); - } - - /* and move those bits */ - - if (oldpt.x != x || oldpt.y != y) { - if(gravitate2[g]) { - pPriv->copyUnderlay = TRUE; - (*pWin->drawable.pScreen->CopyWindow)( - pWin, oldpt, gravitate2[g]); - } - if(gravitate[g]) { - pPriv->copyUnderlay = FALSE; - (*pWin->drawable.pScreen->CopyWindow)( - pWin, oldpt, gravitate[g]); - } - } - - /* remove any overwritten bits from the remaining useful bits */ - - if(gravitate[g]) - REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]); - if(gravitate2[g]) - REGION_SUBTRACT(pScreen, 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, - (pointer)(&TwoRegions)); - } - - /* - * remove the successfully copied regions of the - * window from its exposed region - */ - - if (g == pWin->bitGravity) { - if(gravitate[g]) - REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed, - &pWin->valdata->after.exposed, gravitate[g]); - if(gravitate2[g] && pTree) - REGION_SUBTRACT(pScreen, &pTree->valdata->exposed, - &pTree->valdata->exposed, gravitate2[g]); - } - if(gravitate[g]) { - if (!destClip) - destClip = gravitate[g]; - else { - REGION_UNION(pScreen, destClip, destClip, gravitate[g]); - REGION_DESTROY(pScreen, gravitate[g]); - } - } - if(gravitate2[g]) { - if (!destClip2) - destClip2 = gravitate2[g]; - else { - REGION_UNION(pScreen, destClip2, destClip2, gravitate2[g]); - REGION_DESTROY(pScreen, gravitate2[g]); - } - } - } - - REGION_DESTROY(pScreen, pRegion); - REGION_DESTROY(pScreen, oldRegion); - if(doUnderlay) - REGION_DESTROY(pScreen, oldRegion2); - if (destClip) - REGION_DESTROY(pScreen, destClip); - if (destClip2) - REGION_DESTROY(pScreen, destClip2); - (*pScreen->HandleExposures)(pWin->parent); - if (pScreen->PostValidateTree) - (*pScreen->PostValidateTree)(pWin->parent, pFirstChange, VTOther); - } - if (pWin->realized) - WindowsRestructured (); -} - - -static void -miOverlaySetShape(WindowPtr pWin) -{ - Bool WasViewable = (Bool)(pWin->viewable); - ScreenPtr pScreen = pWin->drawable.pScreen; - - if (WasViewable) { - (*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL); - - if (HasBorder (pWin)) { - RegionPtr borderVisible; - - borderVisible = REGION_CREATE(pScreen, NullBox, 1); - REGION_SUBTRACT(pScreen, 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 = REGION_CREATE(pScreen, NULL, 1); - REGION_SUBTRACT(pScreen, 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); - } - - if (WasViewable) { - (*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 = REGION_CREATE(pScreen, NULL, 1); - REGION_SUBTRACT(pScreen, borderVisible, - &pWin->borderClip, &pWin->winSize); - pWin->valdata->before.borderVisible = borderVisible; - if(IN_UNDERLAY(pWin)) { - miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin); - RegionPtr borderVisible2; - - borderVisible2 = REGION_CREATE(pScreen, NULL, 1); - REGION_SUBTRACT(pScreen, 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 = WindowTable[pScreen->myNum]; - 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; - - REGION_RESET(pScreen, &pTree->borderClip, &box); - } else - REGION_EMPTY(pScreen, &pTree->borderClip); - - REGION_BREAK(pScreen, &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; - RegionPtr pBSReg = NullRegion; - 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 = REGION_EXTENTS(pScreen, 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; - - REGION_INIT(pScreen, ®, &box, 1); - - REGION_INTERSECT(pScreen, ®, ®, clipList); - if (generateExposures) - (*pScreen->WindowExposures)(pWin, ®, pBSReg); - else if (pWin->backgroundState != None) - miPaintWindow(pWin, ®, PW_BACKGROUND); - REGION_UNINIT(pScreen, ®); - if (pBSReg) - REGION_DESTROY(pScreen, pBSReg); -} - - -/****************************************************************/ - -/* 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; -} - -void -miOverlaySetTransFunction ( - ScreenPtr pScreen, - miOverlayTransFunc transFunc -){ - MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent = transFunc; -} - -Bool -miOverlayCopyUnderlay(ScreenPtr pScreen) -{ - return MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->copyUnderlay; -} - -void -miOverlayComputeCompositeClip(GCPtr pGC, WindowPtr pWin) -{ - ScreenPtr pScreen = pGC->pScreen; - miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin); - RegionPtr pregWin; - Bool freeTmpClip, freeCompClip; - - if(!pTree) { - miComputeCompositeClip(pGC, &pWin->drawable); - return; - } - - if (pGC->subWindowMode == IncludeInferiors) { - pregWin = REGION_CREATE(pScreen, NullBox, 1); - freeTmpClip = TRUE; - if (pWin->parent || (screenIsSaved != SCREEN_SAVER_ON) || - !HasSaverWindow (pScreen->myNum)) - { - REGION_INTERSECT(pScreen,pregWin,&pTree->borderClip,&pWin->winSize); - } - } else { - pregWin = &pTree->clipList; - freeTmpClip = FALSE; - } - freeCompClip = pGC->freeCompClip; - if (pGC->clientClipType == CT_NONE) { - if (freeCompClip) - REGION_DESTROY(pScreen, pGC->pCompositeClip); - pGC->pCompositeClip = pregWin; - pGC->freeCompClip = freeTmpClip; - } else { - REGION_TRANSLATE(pScreen, pGC->clientClip, - pWin->drawable.x + pGC->clipOrg.x, - pWin->drawable.y + pGC->clipOrg.y); - - if (freeCompClip) { - REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip, - pregWin, pGC->clientClip); - if (freeTmpClip) - REGION_DESTROY(pScreen, pregWin); - } else if (freeTmpClip) { - REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip); - pGC->pCompositeClip = pregWin; - } else { - pGC->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0); - REGION_INTERSECT(pScreen, pGC->pCompositeClip, - pregWin, pGC->clientClip); - } - pGC->freeCompClip = TRUE; - REGION_TRANSLATE(pScreen, 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 = REGION_CREATE(pWin->drawable.pScreen, 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))) { - REGION_APPEND(pScreen, 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; - REGION_VALIDATE(pScreen, 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; -} + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include +#include "scrnintstr.h" +#include "validate.h" +#include "windowstr.h" +#include "mi.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 { + CloseScreenProcPtr CloseScreen; + CreateWindowProcPtr CreateWindow; + DestroyWindowProcPtr DestroyWindow; + UnrealizeWindowProcPtr UnrealizeWindow; + RealizeWindowProcPtr RealizeWindow; + miOverlayTransFunc MakeTransparent; + miOverlayInOverlayFunc InOverlay; + Bool underlayMarked; + Bool copyUnderlay; +} miOverlayScreenRec, *miOverlayScreenPtr; + +static int miOverlayWindowKeyKeyIndex; +static DevPrivateKey miOverlayWindowKey = &miOverlayWindowKeyKeyIndex; +static int miOverlayScreenKeyIndex; +static DevPrivateKey miOverlayScreenKey = &miOverlayScreenKeyIndex; + +static void RebuildTree(WindowPtr); +static Bool HasUnderlayChildren(WindowPtr); +static void MarkUnderlayWindow(WindowPtr); +static Bool CollectUnderlayChildrenRegions(WindowPtr, RegionPtr); + +static Bool miOverlayCloseScreen(int, ScreenPtr); +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, 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); +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(!dixRequestPrivate(miOverlayWindowKey, sizeof(miOverlayWindowRec))) + return FALSE; + + if(!(pScreenPriv = malloc(sizeof(miOverlayScreenRec)))) + return FALSE; + + dixSetPrivate(&pScreen->devPrivates, miOverlayScreenKey, pScreenPriv); + + pScreenPriv->InOverlay = inOverlayFunc; + pScreenPriv->MakeTransparent = transFunc; + pScreenPriv->underlayMarked = FALSE; + + + pScreenPriv->CloseScreen = pScreen->CloseScreen; + pScreenPriv->CreateWindow = pScreen->CreateWindow; + pScreenPriv->DestroyWindow = pScreen->DestroyWindow; + pScreenPriv->UnrealizeWindow = pScreen->UnrealizeWindow; + pScreenPriv->RealizeWindow = pScreen->RealizeWindow; + + pScreen->CloseScreen = miOverlayCloseScreen; + 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 Bool +miOverlayCloseScreen(int i, ScreenPtr pScreen) +{ + miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen); + + pScreen->CloseScreen = pScreenPriv->CloseScreen; + pScreen->CreateWindow = pScreenPriv->CreateWindow; + pScreen->DestroyWindow = pScreenPriv->DestroyWindow; + pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow; + pScreen->RealizeWindow = pScreenPriv->RealizeWindow; + + free(pScreenPriv); + + return (*pScreen->CloseScreen)(i, pScreen); +} + + +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) { + REGION_NULL(pScreen, &(pTree->borderClip)); + REGION_NULL(pScreen, &(pTree->clipList)); + RebuildTree(pWin); + } else { + BoxRec fullBox; + fullBox.x1 = 0; + fullBox.y1 = 0; + fullBox.x2 = pScreen->width; + fullBox.y2 = pScreen->height; + REGION_INIT(pScreen, &(pTree->borderClip), &fullBox, 1); + REGION_INIT(pScreen, &(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; + + REGION_UNINIT(pScreen, &(pTree->borderClip)); + REGION_UNINIT(pScreen, &(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(WindowTable[pWin->drawable.pScreen->myNum]->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 +){ + ScreenPtr pScreen = pWin->drawable.pScreen; + 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 = REGION_EXTENTS(pScreen, &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 (REGION_BROKEN (pScreen, &pChild->winSize)) + SetWinSize (pChild); + if (REGION_BROKEN (pScreen, &pChild->borderSize)) + SetBorderSize (pChild); + + if (markAll || + RECT_IN_REGION(pScreen, &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 (REGION_BROKEN (pScreen, &tChild->pWin->winSize)) + SetWinSize (tChild->pWin); + if (REGION_BROKEN (pScreen, &tChild->pWin->borderSize)) + SetBorderSize (tChild->pWin); + + if(RECT_IN_REGION(pScreen, &(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) { + 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 (RECT_IN_REGION( pScreen, universe, &borderSize)) { + case rgnIN: + newVis = VisibilityUnobscured; + break; + case rgnPART: + newVis = VisibilityPartiallyObscured; + { + RegionPtr pBounding; + + if ((pBounding = wBoundingShape (pParent))) { + switch (miShapedWindowIn (pScreen, 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) { + REGION_TRANSLATE( pScreen, &tChild->borderClip, dx, dy); + REGION_TRANSLATE( pScreen, &tChild->clipList, dx, dy); + + tChild->pWin->drawable.serialNumber = + NEXT_SERIAL_NUMBER; + if (pScreen->ClipNotify) + (* pScreen->ClipNotify) (tChild->pWin, dx, dy); + } + if (tChild->valdata) { + REGION_NULL(pScreen, &tChild->valdata->borderExposed); + if (HasParentRelativeBorder(tChild->pWin)){ + REGION_SUBTRACT(pScreen, + &tChild->valdata->borderExposed, + &tChild->borderClip, + &tChild->pWin->winSize); + } + REGION_NULL(pScreen, &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) { + REGION_TRANSLATE( pScreen, &tParent->borderClip, dx, dy); + REGION_TRANSLATE( pScreen, &tParent->clipList, dx, dy); + } + break; + case VTBroken: + REGION_EMPTY (pScreen, &tParent->borderClip); + REGION_EMPTY (pScreen, &tParent->clipList); + break; + } + + borderVisible = tParent->valdata->borderVisible; + REGION_NULL(pScreen, &tParent->valdata->borderExposed); + REGION_NULL(pScreen, &tParent->valdata->exposed); + + if (HasBorder (pParent)) { + if (borderVisible) { + REGION_SUBTRACT( pScreen, exposed, universe, borderVisible); + REGION_DESTROY( pScreen, borderVisible); + } else + REGION_SUBTRACT( pScreen, exposed, universe, &tParent->borderClip); + + if (HasParentRelativeBorder(pParent) && (dx || dy)) + REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed, + universe, &pParent->winSize); + else + REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed, + exposed, &pParent->winSize); + + REGION_COPY( pScreen, &tParent->borderClip, universe); + REGION_INTERSECT( pScreen, universe, universe, &pParent->winSize); + } + else + REGION_COPY( pScreen, &tParent->borderClip, universe); + + if ((tChild = tParent->firstChild) && pParent->mapped) { + REGION_NULL(pScreen, &childUniverse); + REGION_NULL(pScreen, &childUnion); + + for (; tChild; tChild = tChild->nextSib) { + if (tChild->pWin->viewable) + REGION_APPEND( pScreen, &childUnion, &tChild->pWin->borderSize); + } + + REGION_VALIDATE( pScreen, &childUnion, &overlap); + + for (tChild = tParent->firstChild; + tChild; + tChild = tChild->nextSib) + { + if (tChild->pWin->viewable) { + if (tChild->valdata) { + REGION_INTERSECT( pScreen, &childUniverse, universe, + &tChild->pWin->borderSize); + miOverlayComputeClips (tChild->pWin, &childUniverse, + kind, exposed); + } + if (overlap) + REGION_SUBTRACT( pScreen, universe, universe, + &tChild->pWin->borderSize); + } + } + if (!overlap) + REGION_SUBTRACT( pScreen, universe, universe, &childUnion); + REGION_UNINIT( pScreen, &childUnion); + REGION_UNINIT( pScreen, &childUniverse); + } + + if (oldVis == VisibilityFullyObscured || + oldVis == VisibilityNotViewable) + { + REGION_COPY( pScreen, &tParent->valdata->exposed, universe); + } + else if (newVis != VisibilityFullyObscured && + newVis != VisibilityNotViewable) + { + REGION_SUBTRACT( pScreen, &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; + + REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList); + if (pChild->drawable.pScreen->ClipNotify) + (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0); + REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip); + if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) { + if(pTree->valdata != (miOverlayValDataPtr)UnmapValData) { + REGION_EMPTY(pChild->drawable.pScreen, &pTree->clipList); + REGION_EMPTY(pChild->drawable.pScreen, &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; + + REGION_NULL(pScreen, &totalClip); + REGION_NULL(pScreen, &childClip); + REGION_NULL(pScreen, &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 (REGION_BROKEN (pScreen, &tParent->clipList) && + !REGION_BROKEN (pScreen, &tParent->borderClip)) + { + kind = VTBroken; + REGION_COPY (pScreen, &totalClip, &tParent->borderClip); + REGION_INTERSECT (pScreen, &totalClip, &totalClip, + &tParent->pWin->winSize); + + for (tWin = tParent->firstChild; tWin != tChild; tWin = tWin->nextSib) { + if (tWin->pWin->viewable) + REGION_SUBTRACT (pScreen, &totalClip, &totalClip, + &tWin->pWin->borderSize); + } + REGION_EMPTY (pScreen, &tParent->clipList); + } else { + for(tWin = tChild; tWin; tWin = tWin->nextSib) { + if(tWin->valdata) + REGION_APPEND(pScreen, &totalClip, &tWin->borderClip); + } + REGION_VALIDATE(pScreen, &totalClip, &overlap); + } + + if(kind != VTStack) + REGION_UNION(pScreen, &totalClip, &totalClip, &tParent->clipList); + + for(tWin = tChild; tWin; tWin = tWin->nextSib) { + if(tWin->valdata) { + if(tWin->pWin->viewable) { + REGION_INTERSECT(pScreen, &childClip, &totalClip, + &tWin->pWin->borderSize); + miOverlayComputeClips(tWin->pWin, &childClip, kind, &exposed); + REGION_SUBTRACT(pScreen, &totalClip, &totalClip, + &tWin->pWin->borderSize); + } else { /* Means we are unmapping */ + REGION_EMPTY(pScreen, &tWin->clipList); + REGION_EMPTY( pScreen, &tWin->borderClip); + tWin->valdata = NULL; + } + } + } + + REGION_UNINIT(pScreen, &childClip); + + if(!((*pPriv->InOverlay)(newParent))) { + REGION_NULL(pScreen, &tParent->valdata->exposed); + REGION_NULL(pScreen, &tParent->valdata->borderExposed); + } + + switch (kind) { + case VTStack: + break; + default: + if(!((*pPriv->InOverlay)(newParent))) + REGION_SUBTRACT(pScreen, &tParent->valdata->exposed, &totalClip, + &tParent->clipList); + /* fall through */ + case VTMap: + REGION_COPY( pScreen, &tParent->clipList, &totalClip); + if(!((*pPriv->InOverlay)(newParent))) + newParent->drawable.serialNumber = NEXT_SERIAL_NUMBER; + break; + } + + REGION_UNINIT( pScreen, &totalClip); + REGION_UNINIT( pScreen, &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; + void (* WindowExposures)(WindowPtr, RegionPtr, RegionPtr); + + 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 (REGION_NOTEMPTY(pScreen, &mival->borderExposed)) { + miPaintWindow(pTree->pWin, &mival->borderExposed, + PW_BORDER); + } + REGION_UNINIT(pScreen, &mival->borderExposed); + + (*WindowExposures)(pTree->pWin,&mival->exposed,NullRegion); + REGION_UNINIT(pScreen, &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))) { + REGION_UNION(pScreen, &val->after.exposed, &val->after.exposed, + &val->after.borderExposed); + + if (REGION_NOTEMPTY(pScreen, &val->after.exposed)) { + (*(MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent))( + pScreen, + REGION_NUM_RECTS(&val->after.exposed), + REGION_RECTS(&val->after.exposed)); + } + } else { + if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed)) { + miPaintWindow(pChild, &val->after.borderExposed, + PW_BORDER); + } + (*WindowExposures)(pChild, &val->after.exposed, NullRegion); + } + REGION_UNINIT(pScreen, &val->after.borderExposed); + REGION_UNINIT(pScreen, &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) { + REGION_NULL(pScreen, &overReg); + REGION_NULL(pScreen, &underReg); + if(pTree) { + REGION_COPY(pScreen, &overReg, &pWin->borderClip); + REGION_COPY(pScreen, &underReg, &pTree->borderClip); + } else { + REGION_COPY(pScreen, &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(REGION_NOTEMPTY(pScreen, &underReg)) { + pPriv->copyUnderlay = TRUE; + (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &underReg); + } + REGION_UNINIT(pScreen, &underReg); + if(REGION_NOTEMPTY(pScreen, &overReg)) { + pPriv->copyUnderlay = FALSE; + (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &overReg); + } + REGION_UNINIT(pScreen, &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 other_exposed +){ + RegionPtr exposures = prgn; + ScreenPtr pScreen = pWin->drawable.pScreen; + + if ((prgn && !REGION_NIL(prgn)) || + (exposures && !REGION_NIL(exposures)) || other_exposed) + { + RegionRec expRec; + int clientInterested; + + clientInterested = (pWin->eventMask|wOtherEventMasks(pWin)) & + ExposureMask; + if (other_exposed) { + if (exposures) { + REGION_UNION(pScreen, other_exposed, exposures, other_exposed); + if (exposures != prgn) + REGION_DESTROY(pScreen, exposures); + } + exposures = other_exposed; + } + if (clientInterested && exposures && + (REGION_NUM_RECTS(exposures) > RECTLIMIT)) + { + miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen); + BoxRec box; + + box = *REGION_EXTENTS(pScreen, exposures); + if (exposures == prgn) { + exposures = &expRec; + REGION_INIT(pScreen, exposures, &box, 1); + REGION_RESET(pScreen, prgn, &box); + } else { + REGION_RESET(pScreen, exposures, &box); + REGION_UNION(pScreen, prgn, prgn, exposures); + } + /* 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); + REGION_INTERSECT(pScreen, prgn, prgn, &pTree->clipList); + } else + REGION_INTERSECT(pScreen, prgn, prgn, &pWin->clipList); + } + if (prgn && !REGION_NIL(prgn)) + miPaintWindow(pWin, prgn, PW_BACKGROUND); + if (clientInterested && exposures && !REGION_NIL(exposures)) + miSendExposures(pWin, exposures, + pWin->drawable.x, pWin->drawable.y); + if (exposures == &expRec) { + REGION_UNINIT(pScreen, exposures); + } + else if (exposures && exposures != prgn && exposures != other_exposed) + REGION_DESTROY(pScreen, exposures); + if (prgn) + REGION_EMPTY(pScreen, prgn); + } + else if (exposures && exposures != prgn) + REGION_DESTROY(pScreen, exposures); +} + + +typedef struct { + RegionPtr over; + RegionPtr under; +} miOverlayTwoRegions; + +static int +miOverlayRecomputeExposures ( + WindowPtr pWin, + pointer value +){ + ScreenPtr pScreen; + miOverlayTwoRegions *pValid = (miOverlayTwoRegions*)value; + miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin); + + /* This prevents warning about pScreen not being used. */ + pWin->drawable.pScreen = pScreen = pWin->drawable.pScreen; + + if (pWin->valdata) { + /* + * compute exposed regions of this window + */ + REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed, + &pWin->clipList, pValid->over); + /* + * compute exposed regions of the border + */ + REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed, + &pWin->borderClip, &pWin->winSize); + REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed, + &pWin->valdata->after.borderExposed, pValid->over); + } + + if(pTree && pTree->valdata) { + REGION_SUBTRACT(pScreen, &pTree->valdata->exposed, + &pTree->clipList, pValid->under); + REGION_SUBTRACT(pScreen, &pTree->valdata->borderExposed, + &pTree->borderClip, &pWin->winSize); + REGION_SUBTRACT(pScreen, &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 = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, oldRegion, &pWin->winSize); + if(doUnderlay) { + oldRegion2 = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, 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] = REGION_CREATE(pScreen, NullBox, 1); + REGION_UNION(pScreen, gravitate[g], + gravitate[g], &pChild->borderClip); + + if(doUnderlay) { + if (!gravitate2[g]) + gravitate2[g] = REGION_CREATE(pScreen, NullBox, 0); + + if((tChild = MIOVERLAY_GET_WINDOW_TREE(pChild))) { + REGION_UNION(pScreen, 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 = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, oldWinClip, &pWin->clipList); + if(pTree) { + oldWinClip2 = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, 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 = REGION_CREATE(pScreen, NullBox, 1); + if(pTree) + borderVisible2 = REGION_CREATE(pScreen, NullBox, 1); + /* for tiled borders, we punt and draw the whole thing */ + if (pWin->borderIsPixel || !moved) + { + if (shrunk || moved) + REGION_SUBTRACT(pScreen, borderVisible, + &pWin->borderClip, + &pWin->winSize); + else + REGION_COPY(pScreen, borderVisible, + &pWin->borderClip); + if(pTree) { + if (shrunk || moved) + REGION_SUBTRACT(pScreen, borderVisible, + &pTree->borderClip, + &pWin->winSize); + else + REGION_COPY(pScreen, 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 = REGION_CREATE(pScreen, 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 + */ + REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList); + if(pTree) + REGION_COPY(pScreen, &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) { + REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy); + offx += dx; + offy += dy; + } + if(gravitate[g]) + REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], + &pWin->winSize); + if(gravitate2[g]) + REGION_INTERSECT(pScreen, gravitate2[g], gravitate2[g], + &pWin->winSize); + } + /* get winSize back where it belongs */ + if (offx || offy) + REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy); + } + /* + * add screen bits to the appropriate bucket + */ + + if (oldWinClip2) + { + REGION_COPY(pScreen, pRegion, oldWinClip2); + REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy); + REGION_INTERSECT(pScreen, oldWinClip2, pRegion, &pTree->clipList); + + for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) { + if (gravitate2[g]) + REGION_SUBTRACT(pScreen, oldWinClip2, oldWinClip2, + gravitate2[g]); + } + REGION_TRANSLATE(pScreen, oldWinClip2, oldx - nx, oldy - ny); + g = pWin->bitGravity; + if (!gravitate2[g]) + gravitate2[g] = oldWinClip2; + else { + REGION_UNION(pScreen,gravitate2[g],gravitate2[g],oldWinClip2); + REGION_DESTROY(pScreen, oldWinClip2); + } + } + + if (oldWinClip) + { + /* + * clip to new clipList + */ + REGION_COPY(pScreen, pRegion, oldWinClip); + REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy); + REGION_INTERSECT(pScreen, 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]) + REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip, + gravitate[g]); + } + REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny); + g = pWin->bitGravity; + if (!gravitate[g]) + gravitate[g] = oldWinClip; + else { + REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip); + REGION_DESTROY(pScreen, 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]) + REGION_INTERSECT(pScreen, gravitate[g], + gravitate[g], oldRegion); + if(gravitate2[g]) + REGION_INTERSECT(pScreen, gravitate2[g], + gravitate2[g], oldRegion2); + + /* clip to not overwrite already copied areas */ + + if (destClip && gravitate[g]) { + REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y); + REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip); + REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y); + } + if (destClip2 && gravitate2[g]) { + REGION_TRANSLATE(pScreen, destClip2, oldpt.x - x, oldpt.y - y); + REGION_SUBTRACT(pScreen,gravitate2[g],gravitate2[g],destClip2); + REGION_TRANSLATE(pScreen, destClip2, x - oldpt.x, y - oldpt.y); + } + + /* and move those bits */ + + if (oldpt.x != x || oldpt.y != y) { + if(gravitate2[g]) { + pPriv->copyUnderlay = TRUE; + (*pWin->drawable.pScreen->CopyWindow)( + pWin, oldpt, gravitate2[g]); + } + if(gravitate[g]) { + pPriv->copyUnderlay = FALSE; + (*pWin->drawable.pScreen->CopyWindow)( + pWin, oldpt, gravitate[g]); + } + } + + /* remove any overwritten bits from the remaining useful bits */ + + if(gravitate[g]) + REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]); + if(gravitate2[g]) + REGION_SUBTRACT(pScreen, 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, + (pointer)(&TwoRegions)); + } + + /* + * remove the successfully copied regions of the + * window from its exposed region + */ + + if (g == pWin->bitGravity) { + if(gravitate[g]) + REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed, + &pWin->valdata->after.exposed, gravitate[g]); + if(gravitate2[g] && pTree) + REGION_SUBTRACT(pScreen, &pTree->valdata->exposed, + &pTree->valdata->exposed, gravitate2[g]); + } + if(gravitate[g]) { + if (!destClip) + destClip = gravitate[g]; + else { + REGION_UNION(pScreen, destClip, destClip, gravitate[g]); + REGION_DESTROY(pScreen, gravitate[g]); + } + } + if(gravitate2[g]) { + if (!destClip2) + destClip2 = gravitate2[g]; + else { + REGION_UNION(pScreen, destClip2, destClip2, gravitate2[g]); + REGION_DESTROY(pScreen, gravitate2[g]); + } + } + } + + REGION_DESTROY(pScreen, pRegion); + REGION_DESTROY(pScreen, oldRegion); + if(doUnderlay) + REGION_DESTROY(pScreen, oldRegion2); + if (destClip) + REGION_DESTROY(pScreen, destClip); + if (destClip2) + REGION_DESTROY(pScreen, destClip2); + (*pScreen->HandleExposures)(pWin->parent); + if (pScreen->PostValidateTree) + (*pScreen->PostValidateTree)(pWin->parent, pFirstChange, VTOther); + } + if (pWin->realized) + WindowsRestructured (); +} + + +static void +miOverlaySetShape(WindowPtr pWin) +{ + Bool WasViewable = (Bool)(pWin->viewable); + ScreenPtr pScreen = pWin->drawable.pScreen; + + if (WasViewable) { + (*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL); + + if (HasBorder (pWin)) { + RegionPtr borderVisible; + + borderVisible = REGION_CREATE(pScreen, NullBox, 1); + REGION_SUBTRACT(pScreen, 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 = REGION_CREATE(pScreen, NULL, 1); + REGION_SUBTRACT(pScreen, 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); + } + + if (WasViewable) { + (*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 = REGION_CREATE(pScreen, NULL, 1); + REGION_SUBTRACT(pScreen, borderVisible, + &pWin->borderClip, &pWin->winSize); + pWin->valdata->before.borderVisible = borderVisible; + if(IN_UNDERLAY(pWin)) { + miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin); + RegionPtr borderVisible2; + + borderVisible2 = REGION_CREATE(pScreen, NULL, 1); + REGION_SUBTRACT(pScreen, 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 = WindowTable[pScreen->myNum]; + 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; + + REGION_RESET(pScreen, &pTree->borderClip, &box); + } else + REGION_EMPTY(pScreen, &pTree->borderClip); + + REGION_BREAK(pScreen, &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; + RegionPtr pBSReg = NullRegion; + 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 = REGION_EXTENTS(pScreen, 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; + + REGION_INIT(pScreen, ®, &box, 1); + + REGION_INTERSECT(pScreen, ®, ®, clipList); + if (generateExposures) + (*pScreen->WindowExposures)(pWin, ®, pBSReg); + else if (pWin->backgroundState != None) + miPaintWindow(pWin, ®, PW_BACKGROUND); + REGION_UNINIT(pScreen, ®); + if (pBSReg) + REGION_DESTROY(pScreen, pBSReg); +} + + +/****************************************************************/ + +/* 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; +} + +void +miOverlaySetTransFunction ( + ScreenPtr pScreen, + miOverlayTransFunc transFunc +){ + MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent = transFunc; +} + +Bool +miOverlayCopyUnderlay(ScreenPtr pScreen) +{ + return MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->copyUnderlay; +} + +void +miOverlayComputeCompositeClip(GCPtr pGC, WindowPtr pWin) +{ + ScreenPtr pScreen = pGC->pScreen; + miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin); + RegionPtr pregWin; + Bool freeTmpClip, freeCompClip; + + if(!pTree) { + miComputeCompositeClip(pGC, &pWin->drawable); + return; + } + + if (pGC->subWindowMode == IncludeInferiors) { + pregWin = REGION_CREATE(pScreen, NullBox, 1); + freeTmpClip = TRUE; + if (pWin->parent || (screenIsSaved != SCREEN_SAVER_ON) || + !HasSaverWindow (pScreen->myNum)) + { + REGION_INTERSECT(pScreen,pregWin,&pTree->borderClip,&pWin->winSize); + } + } else { + pregWin = &pTree->clipList; + freeTmpClip = FALSE; + } + freeCompClip = pGC->freeCompClip; + if (pGC->clientClipType == CT_NONE) { + if (freeCompClip) + REGION_DESTROY(pScreen, pGC->pCompositeClip); + pGC->pCompositeClip = pregWin; + pGC->freeCompClip = freeTmpClip; + } else { + REGION_TRANSLATE(pScreen, pGC->clientClip, + pWin->drawable.x + pGC->clipOrg.x, + pWin->drawable.y + pGC->clipOrg.y); + + if (freeCompClip) { + REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip, + pregWin, pGC->clientClip); + if (freeTmpClip) + REGION_DESTROY(pScreen, pregWin); + } else if (freeTmpClip) { + REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip); + pGC->pCompositeClip = pregWin; + } else { + pGC->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0); + REGION_INTERSECT(pScreen, pGC->pCompositeClip, + pregWin, pGC->clientClip); + } + pGC->freeCompClip = TRUE; + REGION_TRANSLATE(pScreen, 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 = REGION_CREATE(pWin->drawable.pScreen, 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))) { + REGION_APPEND(pScreen, 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; + REGION_VALIDATE(pScreen, 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; +} -- cgit v1.2.3