Don't assume that raster can do porter duff in dfb

PorterDuff should only be enabled if the raster engine says it is. E.g.
if we're painting on a format with alpha.

Reviewed-by: TrustMe

1 files changed, 1 insertions, 5 deletions

diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
index 9aaae62b76..305d5beec6 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
@@ -232,11 +232,7 @@ bool QDirectFBPaintEngine::begin(QPaintDevice *device)
                device->devType());
     }
 
-    const bool status = QRasterPaintEngine::begin(device);
-    // XXX: QRasterPaintEngine::begin() resets the capabilities
-    gccaps |= PorterDuff;
-    d->prepare(d->dfbDevice);
-    return status;
+    return QRasterPaintEngine::begin(device);
 }
 
 bool QDirectFBPaintEngine::end()