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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
speaker.h
Speaker output sound device.
***************************************************************************/
#ifndef MAME_EMU_SPEAKER_H
#define MAME_EMU_SPEAKER_H
#pragma once
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
// device type definition
DECLARE_DEVICE_TYPE(SPEAKER, speaker_device)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> speaker_device
class speaker_device : public device_t, public device_mixer_interface
{
public:
// construction/destruction
speaker_device(const machine_config &mconfig, const char *tag, device_t *owner, double x, double y, double z)
: speaker_device(mconfig, tag, owner, 0)
{
set_position(x, y, z);
}
speaker_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
virtual ~speaker_device();
// inline configuration helpers
speaker_device &set_position(double x, double y, double z) { m_x = x; m_y = y; m_z = z; return *this; }
speaker_device &front_center() { set_position(0.0, 0.0, 1.0); return *this; }
speaker_device &front_left() { set_position(-0.2, 0.0, 1.0); return *this; }
speaker_device &front_right() { set_position(0.2, 0.0, 1.0); return *this; }
// internally for use by the sound system
void mix(s32 *leftmix, s32 *rightmix, int &samples_this_update, bool suppress);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
// inline configuration state
double m_x;
double m_y;
double m_z;
// internal state
#ifdef MAME_DEBUG
s32 m_max_sample; // largest sample value we've seen
s32 m_clipped_samples; // total number of clipped samples
s32 m_total_samples; // total number of samples
#endif
};
// speaker device iterator
typedef device_type_iterator<speaker_device> speaker_device_iterator;
#endif // MAME_EMU_SPEAKER_H
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