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/***************************************************************************
speaker.h
Speaker output sound device.
****************************************************************************
Copyright Aaron Giles
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name 'MAME' nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
***************************************************************************/
#pragma once
#ifndef __EMU_H__
#error Dont include this file directly; include emu.h instead.
#endif
#ifndef __SPEAKER_H__
#define __SPEAKER_H__
//**************************************************************************
// DEVICE CONFIGURATION MACROS
//**************************************************************************
// add/remove speakers
#define MCFG_SPEAKER_ADD(_tag, _x, _y, _z) \
MCFG_DEVICE_ADD(_tag, SPEAKER, 0) \
speaker_device_config::static_set_position(device, _x, _y, _z); \
#define MCFG_SPEAKER_STANDARD_MONO(_tag) \
MCFG_SPEAKER_ADD(_tag, 0.0, 0.0, 1.0)
#define MCFG_SPEAKER_STANDARD_STEREO(_tagl, _tagr) \
MCFG_SPEAKER_ADD(_tagl, -0.2, 0.0, 1.0) \
MCFG_SPEAKER_ADD(_tagr, 0.2, 0.0, 1.0)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> speaker_device_config
class speaker_device_config : public device_config,
public device_config_sound_interface
{
friend class speaker_device;
// construction/destruction
speaker_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
public:
// allocators
static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
virtual device_t *alloc_device(running_machine &machine) const;
// inline configuration helpers
static void static_set_position(device_config *device, double x, double y, double z);
protected:
// inline configuration state
double m_x;
double m_y;
double m_z;
};
// ======================> speaker_device
class speaker_device : public device_t,
public device_sound_interface
{
friend class speaker_device_config;
friend resource_pool_object<speaker_device>::~resource_pool_object();
// construction/destruction
speaker_device(running_machine &_machine, const speaker_device_config &config);
virtual ~speaker_device();
public:
// internally for use by the sound system
void mix(INT32 *leftmix, INT32 *rightmix, int &samples_this_update, bool suppress);
protected:
// device-level overrides
virtual void device_start();
virtual void device_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
const speaker_device_config &m_config;
sound_stream * m_mixer_stream; // mixing stream
#ifdef MAME_DEBUG
INT32 m_max_sample; // largest sample value we've seen
INT32 m_clipped_samples; // total number of clipped samples
INT32 m_total_samples; // total number of samples
#endif
};
// device type definition
extern const device_type SPEAKER;
//**************************************************************************
// INLINE HELPERS
//**************************************************************************
//-------------------------------------------------
// speaker_first - return the first speaker
// device config in a machine_config
//-------------------------------------------------
inline const speaker_device_config *speaker_first(const machine_config &config)
{
return downcast<speaker_device_config *>(config.m_devicelist.first(SPEAKER));
}
//-------------------------------------------------
// speaker_next - return the next speaker
// device config in a machine_config
//-------------------------------------------------
inline const speaker_device_config *speaker_next(const speaker_device_config *previous)
{
return downcast<speaker_device_config *>(previous->typenext());
}
//-------------------------------------------------
// speaker_first - return the first speaker
// device in a machine
//-------------------------------------------------
inline speaker_device *speaker_first(running_machine &machine)
{
return downcast<speaker_device *>(machine.m_devicelist.first(SPEAKER));
}
//-------------------------------------------------
// speaker_next - return the next speaker
// device in a machine
//-------------------------------------------------
inline speaker_device *speaker_next(speaker_device *previous)
{
return downcast<speaker_device *>(previous->typenext());
}
#endif /* __SOUND_H__ */
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