new screen: music visualizer

2009-08-28 00:38:29 +02:00
parent bc1a8a2d1a
commit 75f9f840f7
11 changed files with 276 additions and 2 deletions
--- a/src/visualizer.h
+++ b/src/visualizer.h
@@ -0,0 +1,73 @@
+/***************************************************************************
+ *   Copyright (C) 2008-2009 by Andrzej Rybczak                            *
+ *   electricityispower@gmail.com                                          *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
+ ***************************************************************************/
+
+#ifndef _VISUALIZER_H
+#define _VISUALIZER_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef ENABLE_VISUALIZER
+
+#include "window.h"
+#include "screen.h"
+
+#include <fftw3.h>
+
+class Visualizer : public Screen<Window>
+{
+	public:
+		virtual void SwitchTo();
+		virtual void Resize();
+		
+		virtual std::basic_string<my_char_t> Title();
+		
+		virtual void Update();
+		virtual void Scroll(Where, const int *) { }
+		
+		virtual void EnterPressed() { }
+		virtual void SpacePressed() { }
+		virtual void MouseButtonPressed(MEVENT) { }
+		
+		virtual NCurses::List *GetList() { return 0; }
+		
+		virtual bool allowsSelection() { return false; }
+		
+	protected:
+		virtual void Init();
+		
+	private:
+		int itsFifo;
+		unsigned *itsFreqsMagnitude;
+		double *itsInput;
+		fftw_complex *itsOutput;
+		fftw_plan itsPlan;
+		
+		static const unsigned Samples;
+		static const unsigned FFTResults;
+};
+
+extern Visualizer *myVisualizer;
+
+#endif // ENABLE_VISUALIZER
+
+#endif
+