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composite: Inhibit window background paint with manual subwindow redirection

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The composite extension spec says that window background painting
should be inhibited when the subwindow redirection mode is set to
manual.

This eliminates the ugly flashing effect when compiz unredirects a
fullscreen window.

Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Reviewed-by: Owen Taylor <otaylor@fishsoup.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Ville Syrjälä
2011-05-06 18:19:34 +03:00
committed by Keith Packard
parent f1d75f3b74
commit 9504caf1c3
3 changed files with 7 additions and 0 deletions
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2
composite/compalloc.c
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@@ -434,6 +434,7 @@ compRedirectSubwindows (ClientPtr pClient, WindowPtr pWin, int update)
* critical output
*/
DamageExtSetCritical (pClient, TRUE);
pWin->inhibitBGPaint = TRUE;
}
return Success;
}
@@ -466,6 +467,7 @@ compFreeClientSubwindows (WindowPtr pWin, XID id)
*/
DamageExtSetCritical (pClient, FALSE);
csw->update = CompositeRedirectAutomatic;
pWin->inhibitBGPaint = FALSE;
if (pWin->mapped)
(*pWin->drawable.pScreen->ClearToBackground)(pWin, 0, 0, 0, 0, TRUE);
}