neutrino: implement COSDFader under GPL-3.0+

Origin commit data
------------------
Commit: 589d1114ec
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2011-12-07 (Wed, 07 Dec 2011)

src/driver/fader.h

@@ -0,0 +1,42 @@
+/*
+	Neutrino-HD GUI, COSDFader implementation
+	Copyright (C) 2011 Stefan Seyfried
+
+	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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __FADER_H__
+#define __FADER_H__
+
+#include <driver/framebuffer.h>
+
+class COSDFader
+{
+	private:
+		CFrameBuffer *fb;
+		int step;
+		int target_trans;
+		int transparency;
+		uint32_t timer;
+	public:
+		COSDFader(int trans);
+		~COSDFader();
+
+		void StartFadeIn();
+		bool StartFadeOut();
+		void Stop();
+		bool Fade();
+		uint32_t GetTimer(){ return timer; };
+};
+#endif