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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
disound.h
Device sound interfaces.
***************************************************************************/
#pragma once
#ifndef __EMU_H__
#error Dont include this file directly; include emu.h instead.
#endif
#ifndef __DISOUND_H__
#define __DISOUND_H__
//**************************************************************************
// CONSTANTS
//**************************************************************************
const int ALL_OUTPUTS = 65535; // special value indicating all outputs for the current chip
const int AUTO_ALLOC_INPUT = 65535;
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_SOUND_ADD(_tag, _type, _clock) \
MCFG_DEVICE_ADD(_tag, _type, _clock)
#define MCFG_SOUND_MODIFY(_tag) \
MCFG_DEVICE_MODIFY(_tag)
#define MCFG_SOUND_CLOCK(_clock) \
MCFG_DEVICE_CLOCK(_clock)
#define MCFG_SOUND_REPLACE(_tag, _type, _clock) \
MCFG_DEVICE_REPLACE(_tag, _type, _clock)
#define MCFG_SOUND_CONFIG(_config) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_SOUND_ROUTE(_output, _target, _gain) \
device_sound_interface::static_add_route(*device, _output, _target, _gain);
#define MCFG_SOUND_ROUTE_EX(_output, _target, _gain, _input) \
device_sound_interface::static_add_route(*device, _output, _target, _gain, _input);
#define MCFG_SOUND_ROUTES_RESET() \
device_sound_interface::static_reset_routes(*device);
#define MCFG_MIXER_ROUTE(_output, _target, _gain, _mixoutput) \
device_sound_interface::static_add_route(*device, _output, _target, _gain, AUTO_ALLOC_INPUT, _mixoutput);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class sound_stream;
// ======================> device_sound_interface
class device_sound_interface : public device_interface
{
public:
class sound_route
{
public:
sound_route(int output, int input, float gain, const char *target, UINT32 mixoutput);
const sound_route *next() const { return m_next; }
sound_route * m_next; // pointer to next route
UINT32 m_output; // output index, or ALL_OUTPUTS
UINT32 m_input; // target input index
UINT32 m_mixoutput; // target mixer output
float m_gain; // gain
astring m_target; // target tag
};
// construction/destruction
device_sound_interface(const machine_config &mconfig, device_t &device);
virtual ~device_sound_interface();
// configuration access
const sound_route *first_route() const { return m_route_list.first(); }
// static inline configuration helpers
static sound_route &static_add_route(device_t &device, UINT32 output, const char *target, double gain, UINT32 input = AUTO_ALLOC_INPUT, UINT32 mixoutput = 0);
static void static_reset_routes(device_t &device);
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) = 0;
// stream creation
sound_stream *stream_alloc(int inputs, int outputs, int sample_rate);
// helpers
int inputs() const;
int outputs() const;
sound_stream *input_to_stream_input(int inputnum, int &stream_inputnum);
sound_stream *output_to_stream_output(int outputnum, int &stream_outputnum);
void set_input_gain(int inputnum, float gain);
void set_output_gain(int outputnum, float gain);
int inputnum_from_device(device_t &device, int outputnum = 0) const;
protected:
// optional operation overrides
virtual void interface_validity_check(validity_checker &valid) const;
virtual void interface_pre_start();
virtual void interface_post_start();
virtual void interface_pre_reset();
// internal state
simple_list<sound_route> m_route_list; // list of sound routes
int m_outputs; // number of outputs from this instance
int m_auto_allocated_inputs; // number of auto-allocated inputs targeting us
};
// iterator
typedef device_interface_iterator<device_sound_interface> sound_interface_iterator;
// ======================> device_mixer_interface
class device_mixer_interface : public device_sound_interface
{
public:
// construction/destruction
device_mixer_interface(const machine_config &mconfig, device_t &device, int outputs = 1);
virtual ~device_mixer_interface();
protected:
// optional operation overrides
virtual void interface_pre_start();
virtual void interface_post_load();
// sound interface overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
// internal state
UINT8 m_outputs; // number of outputs
dynamic_array<UINT8> m_outputmap; // map of inputs to outputs
sound_stream * m_mixer_stream; // mixing stream
};
// iterator
typedef device_interface_iterator<device_mixer_interface> mixer_interface_iterator;
#endif /* __DISOUND_H__ */
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