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xserver-multidpi/mi/mioverlay.c
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance 
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00

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#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <X11/X.h>
#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 = (ValidatePtr)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, &reg, &box, 1);
REGION_INTERSECT(pScreen, &reg, &reg, clipList);
if (generateExposures)
(*pScreen->WindowExposures)(pWin, &reg, pBSReg);
else if (pWin->backgroundState != None)
miPaintWindow(pWin, &reg, PW_BACKGROUND);
REGION_UNINIT(pScreen, &reg);
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;
}
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