Visualizer: replace the FFT implementation with a faster one.

This implementation uses fixed points instead of floating points. It
is slightly inaccurate compared to the old one but still perfect for
visualization purpose. It runs 40% faster on passion, 5 times faster
on sholes, and of course 14 times faster on sapphire.

Change-Id: I1e868417bcffda091becf106a7b941d02813faec

1 files changed, 0 insertions, 1 deletions

diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
index 5d51de8..b8746c2 100644
--- a/include/media/Visualizer.h
+++ b/include/media/Visualizer.h
@@ -151,7 +151,6 @@ private:
     void *mCaptureCbkUser;
     sp<CaptureThread> mCaptureThread;
     uint32_t mCaptureFlags;
-    void *mFftTable;
 };