Optimize Flush in display replay

Changes in Flush(): This ensures that only one flush is active when
the thread is running.
Changes in Acton(): Since the first Pixmap::Lock() takes so much longer
than the following, the first Pixmap::Lock() was moved before the while
loop. This makes the fade-in softer.
Add cNopacityDisplayReplay::SetAlpha() for simplification.

1 files changed, 1 insertions, 0 deletions

diff --git a/displayreplay.h b/displayreplay.h
index bbedabf..12e2a4d 100644
--- a/displayreplay.h
+++ b/displayreplay.h
@@ -34,6 +34,7 @@ private:
     virtual void Action(void);
     void createOSD(void);
     void CreatePixmaps(void);
+    void SetAlpha(int Alpha = 0);
     void DrawBackground(void);
     void DrawDate(void);
     void LoadControlIcons(void);