Call ReleaseSource where appropriate

DirectFB caches the last source surface in the target surface after a
Blit. This can cause a surface to be kept around longer than desired
since the caching increases the ref-count. Unless it's likely that the
blit will happen again soon we Release the source.
Reviewed-by: TrustMe

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp
index 15c2f7c..592ad47 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp
@@ -262,7 +262,7 @@ bool QDirectFBSurface::scroll(const QRegion &region, int dx, int dy)
     dfbSurface->SetBlittingFlags(dfbSurface, DSBLIT_NOFX);
     dfbSurface->BatchBlit(dfbSurface, dfbSurface,
                           dfbRects.data(), dfbPoints.data(), n);
-
+    dfbSurface->ReleaseSource(dfbSurface);
     return true;
 }