Remove unnecessary call to exposeRegion in DFB

If we make sure to erase the background to background color in connect()
we don't have to do it in setGeometry.

Also clean up the code in QDBWindowSurface::flush

Reviewed-by: Donald Carr <donald.carr@nokia.com>

2 files changed, 8 insertions, 12 deletions

diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp
index b966ee2..84a74c9 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp
@@ -1287,6 +1287,10 @@ bool QDirectFBScreen::connect(const QString &displaySpec)
     }
     if (!d_ptr->backgroundColor.isValid())
         d_ptr->backgroundColor = Qt::green;
+    d_ptr->primarySurface->Clear(d_ptr->primarySurface, d_ptr->backgroundColor.red(),
+                                 d_ptr->backgroundColor.green(), d_ptr->backgroundColor.blue(),
+                                 d_ptr->backgroundColor.alpha());
+    d_ptr->primarySurface->Flip(d_ptr->primarySurface, 0, d_ptr->flipFlags);
 #endif
 
     return true;
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
index e2b439e..b1ffe69 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
@@ -248,10 +248,6 @@ void QDirectFBWindowSurface::setGeometry(const QRect &rect)
         updateFormat();
 
     QWSWindowSurface::setGeometry(rect);
-#ifdef QT_NO_DIRECTFB_WM
-    if (oldRect.isEmpty())
-        screen->exposeRegion(screen->region(), 0);
-#endif
 }
 
 QByteArray QDirectFBWindowSurface::permanentState() const
@@ -357,15 +353,11 @@ void QDirectFBWindowSurface::flush(QWidget *widget, const QRegion &region,
     const QRect windowGeometry = QDirectFBWindowSurface::geometry();
 #ifdef QT_NO_DIRECTFB_WM
     if (mode == Offscreen) {
-        QRegion r = region;
-        r.translate(offset + windowGeometry.topLeft());
-        screen->exposeRegion(r, 0);
-    } else {
-        screen->flipSurface(dfbSurface, flipFlags, region, offset);
-    }
-#else
-    screen->flipSurface(dfbSurface, flipFlags, region, offset);
+        screen->exposeRegion(region.translated(offset + geometry().topLeft()), 0);
+
+    } else
 #endif
+        screen->flipSurface(dfbSurface, flipFlags, region, offset);
 
 #ifdef QT_DIRECTFB_TIMING
     enum { Secs = 3 };