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Diffstat (limited to 'src/devices/sound/beep.h')
-rw-r--r--src/devices/sound/beep.h32
1 files changed, 17 insertions, 15 deletions
diff --git a/src/devices/sound/beep.h b/src/devices/sound/beep.h
index 388d0fa6261..651ad143985 100644
--- a/src/devices/sound/beep.h
+++ b/src/devices/sound/beep.h
@@ -1,5 +1,11 @@
// license:BSD-3-Clause
// copyright-holders:Kevin Thacker
+/**********************************************************************
+
+ Simple beeper sound driver
+
+**********************************************************************/
+
#ifndef MAME_SOUND_BEEP_H
#define MAME_SOUND_BEEP_H
@@ -9,31 +15,27 @@
// TYPE DEFINITIONS
//**************************************************************************
-// ======================> beep_device
-
-class beep_device : public device_t,
- public device_sound_interface
+class beep_device : public device_t, public device_sound_interface
{
public:
beep_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+ void set_state(int state); // enable/disable sound output
+ void set_clock(uint32_t frequency); // output frequency
+
protected:
// device-level overrides
- virtual void device_start() override;
+ virtual void device_start() override ATTR_COLD;
// sound stream update overrides
- virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
-
-public:
- DECLARE_WRITE_LINE_MEMBER(set_state); // enable/disable sound output
- void set_clock(uint32_t frequency); // output frequency
+ virtual void sound_stream_update(sound_stream &stream) override;
private:
- sound_stream *m_stream; /* stream number */
- int m_enable; /* enable beep */
- int m_frequency; /* set frequency - this can be changed using the appropriate function */
- int m_incr; /* initial wave state */
- int16_t m_signal; /* current signal */
+ sound_stream *m_stream; // stream number
+ bool m_enable; // enable beep
+ uint32_t m_frequency; // set frequency - this can be changed using the appropriate function
+ int32_t m_incr; // initial wave state
+ sound_stream::sample_t m_signal; // current signal
};
DECLARE_DEVICE_TYPE(BEEP, beep_device)