GLboolean
stubIsWindowVisible(WindowInfo *win)
{
#if defined(WINDOWS)
# ifdef VBOX_WITH_WDDM
if (stub.bRunningUnderWDDM)
return win->mapped;
# endif
return GL_TRUE;
#elif defined(Darwin)
return GL_TRUE;
#elif defined(GLX)
Display *dpy = stubGetWindowDisplay(win);
if (dpy)
{
XWindowAttributes attr;
XLOCK(dpy);
XGetWindowAttributes(dpy, win->drawable, &attr);
XUNLOCK(dpy);
if (attr.map_state == IsUnmapped)
{
return GL_FALSE;
}
# if 1
return GL_TRUE;
# else
if (attr.override_redirect)
{
return GL_TRUE;
}
if (!stub.bXExtensionsChecked)
{
stubCheckXExtensions(win);
}
if (!stub.bHaveXComposite)
{
return GL_TRUE;
}
else
{
Pixmap p;
crLockMutex(&stub.mutex);
XLOCK(dpy);
XSync(dpy, false);
oldErrorHandler = XSetErrorHandler(errorHandler);
/*@todo this will create new pixmap for window every call*/
p = XCompositeNameWindowPixmap(dpy, win->drawable);
XSync(dpy, false);
XSetErrorHandler(oldErrorHandler);
XUNLOCK(dpy);
switch (lastXError)
{
case Success:
XFreePixmap(dpy, p);
crUnlockMutex(&stub.mutex);
return GL_FALSE;
break;
case BadMatch:
/*Window isn't redirected*/
lastXError = Success;
break;
default:
crWarning("Unexpected XError %i", (int)lastXError);
lastXError = Success;
}
crUnlockMutex(&stub.mutex);
return GL_TRUE;
}
# endif
}
else {
/* probably created by crWindowCreate() */
return win->mapped;
}
#endif
}
/*
* Updates visible regions for given spu window.
* Returns GL_TRUE if regions changed since last call, GL_FALSE otherwise.
*/
GLboolean stubUpdateWindowVisibileRegions(WindowInfo *pWindow)
{
XserverRegion xreg;
int cRects, i;
XRectangle *pXRects;
GLint* pGLRects;
Display *dpy;
bool bNoUpdate = false;
if (!stub.bXExtensionsChecked)
{
stubCheckXExtensions(pWindow);
if (!stub.trackWindowVisibleRgn)
{
return GL_FALSE;
}
}
dpy = stubGetWindowDisplay(pWindow);
/*@todo see comment regarding size/position updates and XSync, same applies to those functions but
* it seems there's no way to get even based updates for this. Or I've failed to find the appropriate extension.
*/
XLOCK(dpy);
xreg = XCompositeCreateRegionFromBorderClip(dpy, pWindow->drawable);
pXRects = XFixesFetchRegion(dpy, xreg, &cRects);
XFixesDestroyRegion(dpy, xreg);
XUNLOCK(dpy);
/* Check for compiz main window */
if (!pWindow->pVisibleRegions && !cRects)
{
#ifdef VBOX_TEST_MEGOO
XWindowAttributes attr;
XLOCK(dpy);
XSync(dpy, false);
XGetWindowAttributes(dpy, pWindow->drawable, &attr);
XUNLOCK(dpy);
bNoUpdate = attr.override_redirect;
#else
bNoUpdate = true;
#endif
}
if (!bNoUpdate
&& (!pWindow->pVisibleRegions
|| pWindow->cVisibleRegions!=cRects
|| (pWindow->pVisibleRegions && crMemcmp(pWindow->pVisibleRegions, pXRects, cRects * sizeof(XRectangle)))))
{
if (pWindow->pVisibleRegions)
{
XFree(pWindow->pVisibleRegions);
}
pWindow->pVisibleRegions = pXRects;
pWindow->cVisibleRegions = cRects;
pGLRects = crAlloc(4*cRects*sizeof(GLint));
if (!pGLRects)
{
crWarning("stubUpdateWindowVisibileRegions: failed to allocate %lu bytes",
(unsigned long)(4*cRects*sizeof(GLint)));
return GL_FALSE;
}
//crDebug("Got %i rects.", cRects);
for (i=0; i<cRects; ++i)
{
pGLRects[4*i+0] = pXRects[i].x;
pGLRects[4*i+1] = pXRects[i].y;
pGLRects[4*i+2] = pXRects[i].x+pXRects[i].width;
pGLRects[4*i+3] = pXRects[i].y+pXRects[i].height;
//crDebug("Rect[%i]=(%i,%i,%i,%i)", i, pGLRects[4*i+0], pGLRects[4*i+1], pGLRects[4*i+2], pGLRects[4*i+3]);
}
crDebug("Dispatched WindowVisibleRegion (%i, cRects=%i)", pWindow->spuWindow, cRects);
stub.spuDispatch.WindowVisibleRegion(pWindow->spuWindow, cRects, pGLRects);
crFree(pGLRects);
return GL_TRUE;
}
else
{
XFree(pXRects);
}
return GL_FALSE;
}