virtualx-engine/servers/audio/reverb_sw.h

/*************************************************************************/
/*  reverb_sw.h                                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
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/*************************************************************************/
#ifndef REVERB_SW_H
#define REVERB_SW_H

#include "typedefs.h"
#include "os/memory.h"

class ReverbParamsSW;

class ReverbSW {
public:
	enum ReverbMode {
		REVERB_MODE_ROOM,
		REVERB_MODE_STUDIO_SMALL,
		REVERB_MODE_STUDIO_MEDIUM,
		REVERB_MODE_STUDIO_LARGE,
		REVERB_MODE_HALL,
		REVERB_MODE_SPACE_ECHO,
		REVERB_MODE_ECHO,
		REVERB_MODE_DELAY,
		REVERB_MODE_HALF_ECHO
	};

private:
	struct State {
		int lwl;
		int lwr;
		int rwl;
		int rwr;
		unsigned int Offset;
		void reset() { lwl=0; lwr=0; rwl=0; rwr=0; Offset=0; }
		State() { reset(); }
	} state;

	ReverbParamsSW *current_params;


	int *reverb_buffer;
	unsigned int reverb_buffer_size;
	ReverbMode mode;
	int mix_rate;

	void adjust_current_params();

public:


	void set_mode(ReverbMode p_mode);
	bool process(int *p_input,int *p_output,int p_frames,int p_stereo_stride=1); // return tru if audio was created
	void set_mix_rate(int p_mix_rate);

	ReverbSW();
	~ReverbSW();

};

#endif