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Diffstat (limited to 'src/emu/sound/flt_rc.h')
-rw-r--r--src/emu/sound/flt_rc.h24
1 files changed, 23 insertions, 1 deletions
diff --git a/src/emu/sound/flt_rc.h b/src/emu/sound/flt_rc.h
index 8b109392ad0..3807f9e7d89 100644
--- a/src/emu/sound/flt_rc.h
+++ b/src/emu/sound/flt_rc.h
@@ -59,6 +59,28 @@ extern const flt_rc_config flt_rc_ac_default;
void filter_rc_set_RC(device_t *device, int type, double R1, double R2, double R3, double C);
-DECLARE_LEGACY_SOUND_DEVICE(FILTER_RC, filter_rc);
+class filter_rc_device : public device_t,
+ public device_sound_interface
+{
+public:
+ filter_rc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ ~filter_rc_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_RC;
+
#endif /* __FLT_RC_H__ */