device: move event handler and statemachine to separate class/file

Author: rellla

Makefile

@@ -150,6 +150,7 @@ OBJS = $(PLUGIN).o \
 	softhdsetupmenu.o \
 	softhdosd.o \
 	softhdosdprovider.o \
+	statemachine.o \
 	videofilter.o \
 	videorender.o \
 	videostream.o

audio.cpp

@@ -38,13 +38,13 @@ extern "C" {
 #include "audioprocessor.h"
 #include "codec_audio.h"
 #include "config.h"
-#include "event.h"
 #include "filllevel.h"
 #include "logger.h"
 #include "misc.h"
 #include "pidcontroller.h"
 #include "ringbuffer.h"
 #include "softhddevice.h"
+#include "statemachine.h"
 
 /**
  * Create a new audio context
@@ -54,7 +54,6 @@ cSoftHdAudio::cSoftHdAudio(cSoftHdDevice *device)
 	  m_pDevice(device),
 	  m_pConfig(m_pDevice->Config()),
 	  m_alsa(m_pConfig),
-	  m_pEventReceiver(device),
 	  m_softVolume(m_pConfig->ConfigAudioSoftvol),
 	  m_audioProcessor(BYTES_PER_SAMPLE),
 	  m_pMixerChannel(m_pConfig->ConfigAudioMixerChannel)
@@ -1180,7 +1179,7 @@ void cSoftHdAudio::ProcessEvents(void)
 {
 	std::lock_guard<std::mutex> lock(m_queueMutex);
 	for (Event event : m_eventQueue)
-		m_pEventReceiver->OnEventReceived(event);
+		m_pDevice->TriggerEvent(event);
 
 	m_eventQueue.clear();
 }

audio.h

@@ -35,10 +35,10 @@ extern "C" {
 
 #include "alsadevice.h"
 #include "audioprocessor.h"
-#include "event.h"
 #include "filllevel.h"
 #include "pidcontroller.h"
 #include "ringbuffer.h"
+#include "statemachine.h"
 
 class cSoftHdConfig;
 class cSoftHdDevice;
@@ -104,7 +104,6 @@ class cSoftHdAudio : public cThread {
 	cSoftHdDevice *m_pDevice;               ///< pointer to device
 	cSoftHdConfig *m_pConfig;               ///< pointer to config
 	cAlsaDevice m_alsa;                     ///< alsa device
-	IEventReceiver *m_pEventReceiver;       ///< pointer to event receiver
 	cBufferFillLevelLowPassFilter m_fillLevel;                  ///< low pass filter for the buffer fill level
 	cPidController m_pidController{3, 0.005, 0, 1000};          ///< PID controller for clock drift compensation with tuning values coming from educated guesses
 	std::chrono::steady_clock::time_point m_lastPidInvocation;  ///< last time the PID controller was invoked