linuxfb: create image only on resize

Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
Reviewed-by: Thomas Senyk <thomas.senyk@nokia.com>

Change-Id: I04cd75f96cf755ef0c12fad70e3bbd96fbbed9a1
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>

2 files changed, 3 insertions, 11 deletions

diff --git a/src/platformsupport/fbconvenience/qfbbackingstore.cpp b/src/platformsupport/fbconvenience/qfbbackingstore.cpp
index 80ba4031ec..14a51d7a67 100644
--- a/src/platformsupport/fbconvenience/qfbbackingstore.cpp
+++ b/src/platformsupport/fbconvenience/qfbbackingstore.cpp
@@ -51,7 +51,6 @@ QT_BEGIN_NAMESPACE
 QFbBackingStore::QFbBackingStore(QWindow *window)
     : QPlatformBackingStore(window)
 {
-    mImage = QImage(window->size(), window->screen()->handle()->format());
     (static_cast<QFbWindow *>(window->handle()))->setBackingStore(this);
 }
 
@@ -67,18 +66,12 @@ void QFbBackingStore::flush(QWindow *window, const QRegion &region, const QPoint
     (static_cast<QFbWindow *>(window->handle()))->repaint(region);
 }
 
-void QFbBackingStore::resize(const QSize &size, const QRegion &region)
+void QFbBackingStore::resize(const QSize &size, const QRegion &staticContents)
 {
-    Q_UNUSED(region);
-    // change the widget's QImage if this is a resize
+    Q_UNUSED(staticContents);
+
     if (mImage.size() != size)
         mImage = QImage(size, window()->screen()->handle()->format());
-    // QPlatformBackingStore::resize(size);
-}
-
-bool QFbBackingStore::scroll(const QRegion &area, int dx, int dy)
-{
-    return QPlatformBackingStore::scroll(area, dx, dy);
 }
 
 void QFbBackingStore::beginPaint(const QRegion &region)
diff --git a/src/platformsupport/fbconvenience/qfbbackingstore_p.h b/src/platformsupport/fbconvenience/qfbbackingstore_p.h
index a01e35641c..f0d285e697 100644
--- a/src/platformsupport/fbconvenience/qfbbackingstore_p.h
+++ b/src/platformsupport/fbconvenience/qfbbackingstore_p.h
@@ -58,7 +58,6 @@ public:
 
     virtual QPaintDevice *paintDevice() { return &mImage; }
     virtual void flush(QWindow *window, const QRegion &region, const QPoint &offset);
-    virtual bool scroll(const QRegion &area, int dx, int dy);
 
     virtual void beginPaint(const QRegion &region);
     virtual void endPaint(const QRegion &region);