godot/drivers/chibi/cp_sample_manager.h

/*************************************************************************/
/*  cp_sample_manager.h                                                  */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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/*************************************************************************/
#ifndef CP_SAMPLE_MANAGER_H
#define CP_SAMPLE_MANAGER_H

#include "cp_config.h"
#include "cp_sample_defs.h"



/**
@author Juan Linietsky
*/


/* abstract base CPSample_ID class */

struct CPSample_ID {

	void *_private;
	
	bool operator==(const CPSample_ID&p_other) const { return _private==p_other._private; }
	bool operator!=(const CPSample_ID&p_other) const { return _private!=p_other._private; }
	bool is_null() const { return _private==0; }
	CPSample_ID(void *p_private=0) { _private=p_private; };
};


class CPSampleManager {
	
	static CPSampleManager * singleton;

public:

	/* get the singleton instance */
	static CPSampleManager *get_singleton();

	virtual void copy_to(CPSample_ID p_from,CPSample_ID &p_to); ///< if p_to is null, it gets created

	virtual CPSample_ID create(bool p_16bits,bool p_stereo,int32_t p_len)=0;
	virtual void recreate(CPSample_ID p_id,bool p_16bits,bool p_stereo,int32_t p_len)=0;
	virtual void destroy(CPSample_ID p_id)=0;
	virtual bool check(CPSample_ID p_id)=0; // return false if invalid

	virtual void set_c5_freq(CPSample_ID p_id,int32_t p_freq)=0;
	virtual void set_loop_begin(CPSample_ID p_id,int32_t p_begin)=0;
	virtual void set_loop_end(CPSample_ID p_id,int32_t p_end)=0;
	virtual void set_loop_type(CPSample_ID p_id,CPSample_Loop_Type p_type)=0;
	virtual void set_chunk(CPSample_ID p_id,int32_t p_index,void *p_data,int p_data_len)=0;


	virtual int32_t get_loop_begin(CPSample_ID p_id)=0;
	virtual int32_t get_loop_end(CPSample_ID p_id)=0;
	virtual CPSample_Loop_Type get_loop_type(CPSample_ID p_id)=0;
	virtual int32_t get_c5_freq(CPSample_ID p_id)=0;
	virtual int32_t get_size(CPSample_ID p_id)=0;
	virtual bool is_16bits(CPSample_ID p_id)=0;
	virtual bool is_stereo(CPSample_ID p_id)=0;
	virtual bool lock_data(CPSample_ID p_id)=0;
	virtual void *get_data(CPSample_ID p_id)=0; /* WARNING: Not all sample managers
may be able to implement this, it depends on the mixer in use! */
	virtual int16_t get_data(CPSample_ID p_id, int p_sample, int p_channel=0)=0; /// Does not need locking
	virtual void set_data(CPSample_ID p_id, int p_sample, int16_t p_data,int p_channel=0)=0; /// Does not need locking
	virtual void unlock_data(CPSample_ID p_id)=0;

	virtual void get_chunk(CPSample_ID p_id,int32_t p_index,void *p_data,int p_data_len)=0;
	
	CPSampleManager();
	virtual ~CPSampleManager(){}

};

#endif