/*
* RootlessValidateTree
* ValidateTree is modified in two ways:
* - top-level windows don't clip each other
* - windows aren't clipped against root.
* These only matter when validating from the root.
*/
static int
RootlessValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)
{
int result;
RegionRec saveRoot;
ScreenPtr pScreen = pParent->drawable.pScreen;
SCREEN_UNWRAP(pScreen, ValidateTree);
RL_DEBUG_MSG("VALIDATETREE start ");
// Use our custom version to validate from root
if (IsRoot(pParent)) {
RL_DEBUG_MSG("custom ");
result = RootlessMiValidateTree(pParent, pChild, kind);
} else {
HUGE_ROOT(pParent);
result = pScreen->ValidateTree(pParent, pChild, kind);
NORMAL_ROOT(pParent);
}
SCREEN_WRAP(pScreen, ValidateTree);
RL_DEBUG_MSG("VALIDATETREE end\n");
return result;
}
static void
RootlessPaintWindowBackground(WindowPtr pWin, RegionPtr pRegion, int what)
{
int oldBackgroundState = 0;
PixUnion oldBackground;
ScreenPtr pScreen = pWin->drawable.pScreen;
SCREEN_UNWRAP(pScreen, PaintWindowBackground);
RL_DEBUG_MSG("paintwindowbackground start (win 0x%x) ", pWin);
if (IsFramedWindow(pWin)) {
if (IsRoot(pWin)) {
// set root background to magic transparent color
oldBackgroundState = pWin->backgroundState;
oldBackground = pWin->background;
pWin->backgroundState = BackgroundPixel;
pWin->background.pixel = 0x00fffffe;
}
}
pScreen->PaintWindowBackground(pWin, pRegion, what);
if (IsFramedWindow(pWin)) {
RootlessDamageRegion(pWin, pRegion);
if (IsRoot(pWin)) {
pWin->backgroundState = oldBackgroundState;
pWin->background = oldBackground;
}
}
SCREEN_WRAP(pScreen, PaintWindowBackground);
RL_DEBUG_MSG("paintwindowbackground end\n");
}
static void
RootlessPaintWindowBorder(WindowPtr pWin, RegionPtr pRegion, int what)
{
SCREEN_UNWRAP(pWin->drawable.pScreen, PaintWindowBorder);
RL_DEBUG_MSG("paintwindowborder start (win 0x%x) ", pWin);
pWin->drawable.pScreen->PaintWindowBorder(pWin, pRegion, what);
if (IsFramedWindow(pWin)) {
RootlessDamageRegion(pWin, pRegion);
}
SCREEN_WRAP(pWin->drawable.pScreen, PaintWindowBorder);
RL_DEBUG_MSG("paintwindowborder end\n");
}
static void
RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
unsigned int format, unsigned long planeMask, char *pdstLine)
{
ScreenPtr pScreen = pDrawable->pScreen;
SCREEN_UNWRAP(pScreen, GetImage);
if (pDrawable->type == DRAWABLE_WINDOW) {
int x0, y0, x1, y1;
RootlessWindowRec *winRec;
// Many apps use GetImage to sync with the visible frame buffer
// FIXME: entire screen or just window or all screens?
RootlessRedisplayScreen(pScreen);
// RedisplayScreen stops drawing, so we need to start it again
RootlessStartDrawing((WindowPtr)pDrawable);
/* Check that we have some place to read from. */
winRec = WINREC(TopLevelParent((WindowPtr) pDrawable));
if (winRec == NULL)
goto out;
/* Clip to top-level window bounds. */
/* FIXME: fbGetImage uses the width parameter to calculate the
stride of the destination pixmap. If w is clipped, the data
returned will be garbage, although we will not crash. */
x0 = pDrawable->x + sx;
y0 = pDrawable->y + sy;
x1 = x0 + w;
y1 = y0 + h;
x0 = max (x0, winRec->x);
y0 = max (y0, winRec->y);
x1 = min (x1, winRec->x + winRec->width);
y1 = min (y1, winRec->y + winRec->height);
sx = x0 - pDrawable->x;
sy = y0 - pDrawable->y;
w = x1 - x0;
h = y1 - y0;
if (w <= 0 || h <= 0)
goto out;
}
pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
out:
SCREEN_WRAP(pScreen, GetImage);
}
/*
* RootlessSourceValidate
* CopyArea and CopyPlane use a GC tied to the destination drawable.
* StartDrawing/StopDrawing wrappers won't be called if source is
* a visible window but the destination isn't. So, we call StartDrawing
* here and leave StopDrawing for the block handler.
*/
static void
RootlessSourceValidate(DrawablePtr pDrawable, int x, int y, int w, int h,
unsigned int subWindowMode)
{
SCREEN_UNWRAP(pDrawable->pScreen, SourceValidate);
if (pDrawable->type == DRAWABLE_WINDOW) {
WindowPtr pWin = (WindowPtr)pDrawable;
RootlessStartDrawing(pWin);
}
if (pDrawable->pScreen->SourceValidate) {
pDrawable->pScreen->SourceValidate(pDrawable, x, y, w, h, subWindowMode);
}
SCREEN_WRAP(pDrawable->pScreen, SourceValidate);
}
static void
RootlessUninstallColormap (ColormapPtr pMap)
{
ScreenPtr pScreen = pMap->pScreen;
RootlessScreenRec *s = SCREENREC (pScreen);
SCREEN_UNWRAP(pScreen, UninstallColormap);
if (s->colormap == pMap)
s->colormap = NULL;
pScreen->UninstallColormap (pMap);
SCREEN_WRAP(pScreen, UninstallColormap);
}
static void
RootlessStoreColors (ColormapPtr pMap, int ndef, xColorItem *pdef)
{
ScreenPtr pScreen = pMap->pScreen;
RootlessScreenRec *s = SCREENREC (pScreen);
SCREEN_UNWRAP(pScreen, StoreColors);
if (s->colormap == pMap && ndef > 0) {
s->colormap_changed = TRUE;
RootlessQueueRedisplay (pScreen);
}
pScreen->StoreColors (pMap, ndef, pdef);
SCREEN_WRAP(pScreen, StoreColors);
}
static void
RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
unsigned int format, unsigned long planeMask, char *pdstLine)
{
ScreenPtr pScreen = pDrawable->pScreen;
SCREEN_UNWRAP(pScreen, GetImage);
if (pDrawable->type == DRAWABLE_WINDOW) {
/* Many apps use GetImage to sync with the visible frame buffer */
// fixme entire screen or just window or all screens?
RootlessRedisplayScreen(pScreen);
}
pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
SCREEN_WRAP(pScreen, GetImage);
}
static void
RootlessInstallColormap (ColormapPtr pMap)
{
ScreenPtr pScreen = pMap->pScreen;
RootlessScreenRec *s = SCREENREC (pScreen);
SCREEN_UNWRAP(pScreen, InstallColormap);
if (s->colormap != pMap) {
s->colormap = pMap;
s->colormap_changed = TRUE;
RootlessQueueRedisplay (pScreen);
}
pScreen->InstallColormap (pMap);
SCREEN_WRAP (pScreen, InstallColormap);
}
/*
* Screen function to create a graphics context
*/
Bool
RootlessCreateGC(GCPtr pGC)
{
RootlessGCRec *gcrec;
RootlessScreenRec *s;
Bool result;
SCREEN_UNWRAP(pGC->pScreen, CreateGC);
s = SCREENREC(pGC->pScreen);
result = s->CreateGC(pGC);
gcrec = (RootlessGCRec *)
dixLookupPrivate(&pGC->devPrivates, rootlessGCPrivateKey);
gcrec->originalOps = NULL; // don't wrap ops yet
gcrec->originalFuncs = pGC->funcs;
pGC->funcs = &rootlessGCFuncs;
SCREEN_WRAP(pGC->pScreen, CreateGC);
return result;
}
/*
* RootlessCreateScreenResources
* Rootless implementations typically set a null framebuffer pointer, which
* causes problems with miCreateScreenResources. We fix things up here.
*/
static Bool
RootlessCreateScreenResources(ScreenPtr pScreen)
{
Bool ret = TRUE;
SCREEN_UNWRAP(pScreen, CreateScreenResources);
if (pScreen->CreateScreenResources != NULL)
ret = (*pScreen->CreateScreenResources)(pScreen);
SCREEN_WRAP(pScreen, CreateScreenResources);
if (!ret)
return ret;
/* Make sure we have a valid screen pixmap. */
RootlessUpdateScreenPixmap(pScreen);
return ret;
}
/*
* RootlessMarkOverlappedWindows
* MarkOverlappedWindows is modified to ignore overlapping
* top-level windows.
*/
static Bool
RootlessMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst,
WindowPtr *ppLayerWin)
{
RegionRec saveRoot;
Bool result;
ScreenPtr pScreen = pWin->drawable.pScreen;
SCREEN_UNWRAP(pScreen, MarkOverlappedWindows);
RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS start ");
HUGE_ROOT(pWin);
if (IsRoot(pWin)) {
// root - mark nothing
RL_DEBUG_MSG("is root not marking ");
result = FALSE;
}
else if (! IsTopLevel(pWin)) {
// not top-level window - mark normally
result = pScreen->MarkOverlappedWindows(pWin, pFirst, ppLayerWin);
}
else {
//top-level window - mark children ONLY - NO overlaps with sibs (?)
// This code copied from miMarkOverlappedWindows()
register WindowPtr pChild;
Bool anyMarked = FALSE;
MarkWindowProcPtr MarkWindow = pScreen->MarkWindow;
RL_DEBUG_MSG("is top level! ");
/* single layered systems are easy */
if (ppLayerWin) *ppLayerWin = pWin;
if (pWin == pFirst) {
/* Blindly mark pWin and all of its inferiors. This is a slight
* overkill if there are mapped windows that outside pWin's border,
* but it's better than wasting time on RectIn checks.
*/
pChild = pWin;
while (1) {
if (pChild->viewable) {
if (RegionBroken(&pChild->winSize))
SetWinSize (pChild);
if (RegionBroken(&pChild->borderSize))
SetBorderSize (pChild);
(* MarkWindow)(pChild);
if (pChild->firstChild) {
pChild = pChild->firstChild;
continue;
}
}
while (!pChild->nextSib && (pChild != pWin))
pChild = pChild->parent;
if (pChild == pWin)
break;
pChild = pChild->nextSib;
}
anyMarked = TRUE;
pFirst = pFirst->nextSib;
}
if (anyMarked)
(* MarkWindow)(pWin->parent);
result = anyMarked;
}
NORMAL_ROOT(pWin);
SCREEN_WRAP(pScreen, MarkOverlappedWindows);
RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS end\n");
return result;
}