/*
** Copyright (c) 2017 rxi
**
** This library is free software; you can redistribute it and/or modify it
** under the terms of the MIT license. See `cmixer.c` for details.
**/

#ifndef CMIXER_H
#define CMIXER_H

#define CM_VERSION "0.1.1"

typedef short cm_Int16;
typedef int cm_Int32;
typedef long long cm_Int64;
typedef unsigned char cm_UInt8;
typedef unsigned short cm_UInt16;
typedef unsigned cm_UInt32;

typedef struct cm_Source cm_Source;

typedef struct {
	int type;
	void *udata;
	const char *msg;
	cm_Int16 *buffer;
	int length;
} cm_Event;

typedef void (*cm_EventHandler)(cm_Event *e);

typedef struct {
	cm_EventHandler handler;
	void *udata;
	int samplerate;
	int length;
} cm_SourceInfo;

enum { CM_STATE_STOPPED, CM_STATE_PLAYING, CM_STATE_PAUSED };

enum {
	CM_EVENT_LOCK,
	CM_EVENT_UNLOCK,
	CM_EVENT_DESTROY,
	CM_EVENT_SAMPLES,
	CM_EVENT_REWIND
};

const char *cm_get_error(void);
void cm_init(int samplerate);
void cm_set_lock(cm_EventHandler lock);
void cm_set_master_gain(double gain);
void cm_process(cm_Int16 *dst, int len);

cm_Source *cm_new_source(const cm_SourceInfo *info);
cm_Source *cm_new_source_from_file(const char *filename);
cm_Source *cm_new_source_from_mem(void *data, int size);
void cm_destroy_source(cm_Source *src);
double cm_get_length(cm_Source *src);
double cm_get_position(cm_Source *src);
int cm_get_state(cm_Source *src);
void cm_set_gain(cm_Source *src, double gain);
void cm_set_pan(cm_Source *src, double pan);
void cm_set_pitch(cm_Source *src, double pitch);
void cm_set_loop(cm_Source *src, int loop);
void cm_play(cm_Source *src);
void cm_pause(cm_Source *src);
void cm_stop(cm_Source *src);

#endif