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http://www.openoffice.org/issues/show_bug.cgi?id=100090





------- Additional comments from [email protected] Wed Mar 11 10:35:14 +0000 
2009 -------
@wg : in fact, I'm searching since months (ssa was the first to identify the 
issue, but like me, was not 
able to find the exact root).

So I'm searching, and after being discussed a lot of times with Thorsten and 
other, we agreed this issue 
could be caused by either :

- we render an empty slide (and Caolan debug stuff is very helpfull since we 
have the slide numbers )
- there is a timers issue somewhere.

What let me think this can be a timer issue, is the flicker does not appear 
every times. 

I'll investigate, but not before this week end, because my day job eats all my 
energy, sorry :/


Can be important: 

if you read my changes in ogltrans4mac cws, in particular in the 
OGLTransistionerTransitionImpl_MACOSX.mm , I commented the canvasArea stuff, 
because it was 
returning NULL (causing crashes). The bad thing is I modified Radek (or Caolan 
maybe) implementation, 
because OGLTransitionerImpl::createWindow() didn't work as expected. As a first 
approach, to make it 
work again (I'll retry the right way asap) I reused 
OGLTransitionerImpl::initWindowFromSlideShowView.

To save yout time, the commented code is : 
/*
    awt::Rectangle aCanvasArea = mxView->getCanvasArea();
    pWindow->SetPosSizePixel(aCanvasArea.X, aCanvasArea.Y, aCanvasArea.Width, 
aCanvasArea.Height);
    GLWin.Width = aCanvasArea.Width;
    GLWin.Height = aCanvasArea.Height;
    OSL_TRACE("canvas area: %d,%d - %dx%d", aCanvasArea.X, aCanvasArea.Y, 
aCanvasArea.Width, 
aCanvasArea.Height);

*/

I'll keep you informed if I find other information, or simply progress

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