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Diffstat (limited to 'src/emu/sound/flt_vol.h')
-rw-r--r--src/emu/sound/flt_vol.h24
1 files changed, 23 insertions, 1 deletions
diff --git a/src/emu/sound/flt_vol.h b/src/emu/sound/flt_vol.h
index 921148e09b3..9f7ce598b43 100644
--- a/src/emu/sound/flt_vol.h
+++ b/src/emu/sound/flt_vol.h
@@ -8,6 +8,28 @@
void flt_volume_set_volume(device_t *device, float volume);
-DECLARE_LEGACY_SOUND_DEVICE(FILTER_VOLUME, filter_volume);
+class filter_volume_device : public device_t,
+ public device_sound_interface
+{
+public:
+ filter_volume_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ ~filter_volume_device() { global_free(m_token); }
+
+ // access to legacy token
+ void *token() const { assert(m_token != NULL); return m_token; }
+protected:
+ // device-level overrides
+ virtual void device_config_complete();
+ virtual void device_start();
+
+ // sound stream update overrides
+ virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
+private:
+ // internal state
+ void *m_token;
+};
+
+extern const device_type FILTER_VOLUME;
+
#endif /* __FLT_VOL_H__ */