Handle Midi clock and resolve BPM

src/mididevice.cpp

@@ -162,11 +162,11 @@ void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsign
 		}
 	}
 
-	if (nLength < 2)
+	/*if (nLength < 2)
 	{
 		// LOGERR("MIDI message is shorter than 2 bytes!");
 		return;
-	}
+	}*/
 
 	m_MIDISpinLock.Acquire ();
 
@@ -181,6 +181,10 @@ void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsign
 		LOGNOTE("Master volume: %f",nMasterVolume);
 		m_pSynthesizer->setMasterVolume(nMasterVolume);
 	}
+	else if (pMessage[0] == MIDI_TIMING_CLOCK)
+	{
+		m_pSynthesizer->handleClock();
+	}
 	else
 	{
 		// Perform any MiniDexed level MIDI handling before specific Tone Generators

src/minidexed.cpp

@@ -27,6 +27,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <assert.h>
+#include <chrono>
 
 LOGMODULE ("minidexed");
 
@@ -61,6 +62,10 @@ CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
 {
 	assert (m_pConfig);
 
+	m_nClockCounter = 0;
+	m_mClockTime = 0;
+	m_nBPM = 120;
+
 	for (unsigned i = 0; i < CConfig::ToneGenerators; i++)
 	{
 		m_nVoiceBankID[i] = 0;
@@ -721,6 +726,35 @@ void CMiniDexed::SetMIDIChannel (uint8_t uchChannel, unsigned nTG)
 	m_UI.ParameterChanged ();
 }
 
+unsigned CMiniDexed::getTempo (void)
+{
+	return this->m_nBPM;
+}
+
+void CMiniDexed::handleClock (void)
+{
+	if (m_nClockCounter == 0)
+	{
+		// Set milis
+		auto now = std::chrono::high_resolution_clock::now();
+		m_mClockTime = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count();
+
+	}
+	m_nClockCounter++;
+
+	if (m_nClockCounter > 23) {
+		m_nClockCounter = 0;
+		// Calculate BPM
+		auto now = std::chrono::high_resolution_clock::now();
+		unsigned timeDelta = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count() - m_mClockTime;
+		m_nBPM = roundf(60000 / timeDelta);
+
+		// Set BPM to FXs
+
+		m_UI.ParameterChanged();
+	}
+}
+
 void CMiniDexed::keyup (int16_t pitch, unsigned nTG)
 {
 	assert (nTG < CConfig::ToneGenerators);

src/minidexed.h

@@ -81,6 +81,9 @@ public:
 	void SetResonance (int nResonance, unsigned nTG);		// 0 .. 99
 	void SetMIDIChannel (uint8_t uchChannel, unsigned nTG);
 
+	unsigned getTempo(void);
+	void handleClock(void);
+
 	void keyup (int16_t pitch, unsigned nTG);
 	void keydown (int16_t pitch, uint8_t velocity, unsigned nTG);
 
@@ -359,6 +362,10 @@ private:
 	bool m_bLoadPerformanceBusy;
 	bool m_bLoadPerformanceBankBusy;
 	bool m_bSaveAsDeault;
+
+	unsigned m_nClockCounter;
+	unsigned long m_mClockTime;
+	unsigned m_nBPM;
 };
 
 #endif

src/uimenu.cpp

@@ -35,7 +35,7 @@ LOGMODULE ("uimenu");
 
 const CUIMenu::TMenuItem CUIMenu::s_MenuRoot[] =
 {
-	{"MiniDexed JN", MenuHandler, s_MainMenu},
+	{"MiniDexed", MenuHandler, s_MainMenu},
 	{0}
 };
 
@@ -653,7 +653,7 @@ void CUIMenu::MenuHandler (CUIMenu *pUIMenu, TMenuEvent Event)
 	{
 		pUIMenu->m_pUI->DisplayWrite (
 			pUIMenu->m_pParentMenu[pUIMenu->m_nCurrentMenuItem].Name,
-			"",
+			to_string(pUIMenu->m_pMiniDexed->getTempo()).c_str(),
 			pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection].Name,
 			pUIMenu->m_nCurrentSelection > 0,
 			!!pUIMenu->m_pCurrentMenu[pUIMenu->m_nCurrentSelection+1].Name);
@@ -1195,6 +1195,8 @@ void CUIMenu::EditTGFXParameter (CUIMenu *pUIMenu, TMenuEvent Event)
 	case MenuEventUpdate:
 		break;
 
+	case MenuEventPressAndStepDown:
+		nValue -= rParam.Increment * 9;
 	case MenuEventStepDown:
 		nValue -= rParam.Increment;
 		if (nValue < rParam.Minimum)
@@ -1204,6 +1206,8 @@ void CUIMenu::EditTGFXParameter (CUIMenu *pUIMenu, TMenuEvent Event)
 		pUIMenu->m_pMiniDexed->SetTGFXParameter (nParam, nValue, nTG, nFXType);
 		break;
 
+	case MenuEventPressAndStepUp:
+		nValue += rParam.Increment * 9;
 	case MenuEventStepUp:
 		nValue += rParam.Increment;
 		if (nValue > rParam.Maximum)
@@ -1213,11 +1217,6 @@ void CUIMenu::EditTGFXParameter (CUIMenu *pUIMenu, TMenuEvent Event)
 		pUIMenu->m_pMiniDexed->SetTGFXParameter (nParam, nValue, nTG, nFXType);
 		break;
 
-	case MenuEventPressAndStepDown:
-	case MenuEventPressAndStepUp:
-		pUIMenu->TGShortcutHandler (Event);
-		return;
-
 	default:
 		return;
 	}
@@ -1330,6 +1329,8 @@ void CUIMenu::EditSendFXParameter (CUIMenu *pUIMenu, TMenuEvent Event)
 	case MenuEventUpdate:
 		break;
 
+	case MenuEventPressAndStepDown:
+		nValue -= rParam.Increment * 9;
 	case MenuEventStepDown:
 		nValue -= rParam.Increment;
 		if (nValue < rParam.Minimum)
@@ -1339,6 +1340,8 @@ void CUIMenu::EditSendFXParameter (CUIMenu *pUIMenu, TMenuEvent Event)
 		pUIMenu->m_pMiniDexed->SetSendFXParameter (nParam, nValue, nFXType);
 		break;
 
+	case MenuEventPressAndStepUp:
+		nValue += rParam.Increment * 9;
 	case MenuEventStepUp:
 		nValue += rParam.Increment;
 		if (nValue > rParam.Maximum)