Sending voice data via SYSEX when voice is changed.

Adding master volume and changing master volume when SYSEX master volume is triggered.

src/mididevice.cpp

@@ -170,9 +170,9 @@ void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsign
 	// GLOBAL MIDI SYSEX
 	if (pMessage[0] == MIDI_SYSTEM_EXCLUSIVE_BEGIN && pMessage[3] == 0x04 &&  pMessage[4] == 0x01 && pMessage[nLength-1] == MIDI_SYSTEM_EXCLUSIVE_END) // MASTER VOLUME
 	{
-		float32_t nMasterVolume=(pMessage[5] & (pMessage[6]<<7))/(1<<14);
+		float32_t nMasterVolume=((pMessage[5] & 0x7c) & ((pMessage[6] & 0x7c) <<7))/(1<<14);
 		LOGNOTE("Master volume: %f",nMasterVolume);
-		// TODO: Handle global master volume
+		m_pSynthesizer->setMasterVolume(nMasterVolume);
 	}
 	else
 	{
@@ -427,7 +427,6 @@ void CMIDIDevice::HandleSystemExclusive(const uint8_t* pMessage, const size_t nL
       // load sysex-data into voice memory
       LOGDBG("One Voice bulk upload");
       m_pSynthesizer->loadVoiceParameters(pMessage,nTG);
-
       break;
     case 200:
       LOGDBG("Bank bulk upload.");

src/mididevice.h

@@ -49,12 +49,12 @@ public:
 	u8 GetChannel (unsigned nTG) const;
 
 	virtual void Send (const u8 *pMessage, size_t nLength, unsigned nCable = 0) {}
+	virtual void SendSystemExclusiveVoice(uint8_t nVoice, const unsigned nCable, uint8_t nTG);
 
 protected:
 	void MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsigned nCable = 0);
 	void AddDevice (const char *pDeviceName);
 	void HandleSystemExclusive(const uint8_t* pMessage, const size_t nLength, const unsigned nCable, const uint8_t nTG);
-	void SendSystemExclusiveVoice(uint8_t nVoice, const unsigned nCable, uint8_t nTG);
 private:
 	CMiniDexed *m_pSynthesizer;
 	CConfig *m_pConfig;

src/minidexed.cpp

@@ -363,6 +363,7 @@ void CMiniDexed::ProgramChange (unsigned nProgram, unsigned nTG)
 
 	assert (m_pTG[nTG]);
 	m_pTG[nTG]->loadVoiceParameters (Buffer);
+	m_SerialMIDI.SendSystemExclusiveVoice(nProgram,0,nTG);
 
 	m_UI.ParameterChanged ();
 }
@@ -867,6 +868,11 @@ void CMiniDexed::ProcessSound (void)
 		}
 		
 		// BEGIN TG mixing
+		float32_t tmp_float[nFrames*2];
+		int16_t tmp_int[nFrames*2];
+
+		if(nMasterVolume > 0.0)
+		{
 			for (uint8_t i = 0; i < CConfig::ToneGenerators; i++)
 			{
 				tg_mixer->doAddMix(i,m_OutputLevel[i]);
@@ -909,14 +915,23 @@ void CMiniDexed::ProcessSound (void)
 			// END adding reverb
 	
 			// Convert dual float array (left, right) to single int16 array (left/right)
-		float32_t tmp_float[nFrames*2];
-		int16_t tmp_int[nFrames*2];
 			for(uint16_t i=0; i<nFrames;i++)
+			{
+				if(nMasterVolume >0.0 && nMasterVolume <1.0)
+				{
+					tmp_float[i*2]=SampleBuffer[indexL][i] * nMasterVolume;
+					tmp_float[(i*2)+1]=SampleBuffer[indexR][i] * nMasterVolume;
+				}
+				else if(nMasterVolume == 1.0)
 				{
 					tmp_float[i*2]=SampleBuffer[indexL][i];
 					tmp_float[(i*2)+1]=SampleBuffer[indexR][i];
 				}
+			}
 			arm_float_to_q15(tmp_float,tmp_int,nFrames*2);
+		}
+		else
+			arm_fill_q15(0, tmp_int, nFrames * 2);
 
 		if (m_pSoundDevice->Write (tmp_int, sizeof(tmp_int)) != (int) sizeof(tmp_int))
 		{
@@ -1183,3 +1198,14 @@ void CMiniDexed::getSysExVoiceDump(uint8_t* dest, uint8_t nTG)
 	dest[161] = checksum & 0x7f; // Checksum
 	dest[162] = 0xF7; // SysEx end
 }
+
+void CMiniDexed::setMasterVolume (float32_t vol)
+{
+	if(vol < 0.0)
+		vol = 0.0;
+	else if(vol > 1.0)
+		vol = 1.0;
+
+	nMasterVolume=vol;
+}
+

src/minidexed.h

@@ -150,6 +150,7 @@ public:
 	std::string GetVoiceName (unsigned nTG);
 
 	bool SavePerformance (void);
+	void setMasterVolume (float32_t vol);
 
 private:
 	int16_t ApplyNoteLimits (int16_t pitch, unsigned nTG);	// returns < 0 to ignore note
@@ -195,6 +196,8 @@ private:
 
 	unsigned m_nReverbSend[CConfig::ToneGenerators];
 
+	float32_t nMasterVolume;
+
 	CUserInterface m_UI;
 	CSysExFileLoader m_SysExFileLoader;
 	CPerformanceConfig m_PerformanceConfig;