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diff --git a/cinelerra-5.1/plugins/piano/piano.h b/cinelerra-5.1/plugins/piano/piano.h
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+++ b/cinelerra-5.1/plugins/piano/piano.h
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+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ * 
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 
+ */
+
+#ifndef PIANO_H
+#define PIANO_H
+
+
+
+#include "filexml.inc"
+#include "guicast.h"
+#include "mutex.h"
+#include "pluginaclient.h"
+#include "vframe.inc"
+
+
+class Piano;
+class PianoWindow;
+
+
+class PianoCanvas;
+class PianoWaveForm;
+class PianoBaseFreq;
+class PianoFreqPot;
+class PianoOscGUI;
+class PianoScroll;
+class PianoSubWindow;
+class PianoWetness;
+
+class PianoWindow : public BC_Window
+{
+public:
+	PianoWindow(Piano *plugin, int x, int y);
+	~PianoWindow();
+
+	void create_objects();
+	int close_event();
+	int resize_event(int w, int h);
+	void update_gui();
+	int waveform_to_text(char *text, int waveform);
+	void update_scrollbar();
+	void update_oscillators();
+
+
+	Piano *plugin;
+	PianoCanvas *canvas;
+};
+
+
+class PianoCanvas : public BC_SubWindow
+{
+public:
+	PianoCanvas(Piano *plugin, 
+		PianoWindow *window, 
+		int x, 
+		int y, 
+		int w, 
+		int h);
+	~PianoCanvas();
+
+	int update();
+	Piano *plugin;
+	PianoWindow *window;
+};
+
+
+class PianoThread : public Thread
+{
+public:
+	PianoThread(Piano *synth);
+	~PianoThread();
+
+	void run();
+
+	Mutex completion;
+	Piano *synth;
+	PianoWindow *window;
+};
+
+
+
+class PianoConfig
+{
+public:
+	PianoConfig();
+	~PianoConfig();
+	
+	int equivalent(PianoConfig &that);
+	void copy_from(PianoConfig &that);
+	void interpolate(PianoConfig &prev, 
+		PianoConfig &next, 
+		int64_t prev_frame, 
+		int64_t next_frame, 
+		int64_t current_frame);
+	void reset();
+	
+};
+
+
+class Piano : public PluginAClient
+{
+public:
+	Piano(PluginServer *server);
+	~Piano();
+
+
+
+	int is_realtime();
+	int is_synthesis();
+	int load_configuration();
+	char* plugin_title();
+	void read_data(KeyFrame *keyframe);
+	void save_data(KeyFrame *keyframe);
+	int show_gui();
+	void raise_window();
+	int set_string();
+	int process_realtime(int64_t size, double *input_ptr, double *output_ptr);
+
+
+
+
+
+
+
+	void add_oscillator();
+	void delete_oscillator();
+	double get_total_power();
+	double get_oscillator_point(float x, 
+		double normalize_constant, 
+		int oscillator);
+	double solve_eqn(double *output, 
+		double x1, 
+		double x2, 
+		double normalize_constant,
+		int oscillator);
+	double get_point(float x, double normalize_constant);
+	double function_square(double x);
+	double function_pulse(double x);
+	double function_noise();
+	double function_sawtooth(double x);
+	double function_triangle(double x);
+	void reconfigure();
+	int overlay_synth(int64_t start, int64_t length, double *input, double *output);
+	void update_gui();
+	void reset();
+
+
+
+	double *dsp_buffer;
+	int need_reconfigure;
+	PianoThread *thread;
+	PianoConfig config;
+	int w, h;
+	DB db;
+	int64_t waveform_length;           // length of loop buffer
+	int64_t waveform_sample;           // current sample in waveform of loop
+	int64_t samples_rendered;          // samples of the dsp_buffer rendered since last buffer redo
+	float period;            // number of samples in a period for this frequency
+};
+
+
+
+
+
+
+
+
+#endif