From 0c3fe540e925829022d9d8aa567c2dc2bd3d33d5 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Wed, 21 Jun 2017 13:03:30 +0800
Subject: Complete rewrite of the MIDI mapper. Enforces single fluidsynth
 instance. Documentation update. Minor changes to make lite version work.

---
 core/qmpmidioutrtmidi.cpp | 115 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 core/qmpmidioutrtmidi.cpp

(limited to 'core/qmpmidioutrtmidi.cpp')

diff --git a/core/qmpmidioutrtmidi.cpp b/core/qmpmidioutrtmidi.cpp
new file mode 100644
index 0000000..776eb6b
--- /dev/null
+++ b/core/qmpmidioutrtmidi.cpp
@@ -0,0 +1,115 @@
+#include <cstdio>
+#include <cstring>
+#include <vector>
+#include RT_MIDI_H
+#include "qmpmidioutrtmidi.hpp"
+qmpMidiOutRtMidi::qmpMidiOutRtMidi(unsigned _portid)
+{
+	portid=_portid;
+	outport=NULL;
+}
+qmpMidiOutRtMidi::~qmpMidiOutRtMidi()
+{
+	if(!outport)return;
+	if(outport->isPortOpen())outport->closePort();
+	delete outport;outport=NULL;
+}
+void qmpMidiOutRtMidi::deviceInit()
+{
+	try
+	{
+		outport=new RtMidiOut();
+	}
+	catch(RtMidiError &e)
+	{
+		printf("Cannot create RtMidi Output instance: %s\n",e.what());
+		outport=NULL;
+	}
+}
+void qmpMidiOutRtMidi::deviceDeinit()
+{
+	if(!outport||!outport->isPortOpen())return;
+	outport->closePort();
+}
+void qmpMidiOutRtMidi::basicMessage(uint8_t type,uint8_t p1,uint8_t p2)
+{
+	if(!outport||!outport->isPortOpen())return;
+	std::vector<unsigned char>msg;
+	msg.push_back(type);
+	msg.push_back(p1);
+	msg.push_back(p2);
+	outport->sendMessage(&msg);
+}
+void qmpMidiOutRtMidi::extendedMessage(uint8_t length,const char *data)
+{
+	if(!outport||!outport->isPortOpen())return;
+	std::vector<unsigned char>msg(data,data+length);
+	outport->sendMessage(&msg);
+}
+void qmpMidiOutRtMidi::rpnMessage(uint8_t ch,uint16_t type,uint16_t val)
+{
+	basicMessage(0xB0|ch,0x64,type&0x7F);
+	basicMessage(0xB0|ch,0x65,type>>7);
+	basicMessage(0xB0|ch,0x06,val>>7);
+	basicMessage(0xB0|ch,0x26,val&0x7F);
+}
+void qmpMidiOutRtMidi::nrpnMessage(uint8_t ch,uint16_t type,uint16_t val)
+{
+	basicMessage(0xB0|ch,0x62,type&0x7F);
+	basicMessage(0xB0|ch,0x63,type>>7);
+	basicMessage(0xB0|ch,0x06,val>>7);
+	basicMessage(0xB0|ch,0x26,val&0x7F);
+}
+void qmpMidiOutRtMidi::panic(uint8_t ch)
+{
+	//maybe all notes off is more close to panic?
+	basicMessage(0xE0|ch,0x0,0x40);
+	basicMessage(0xB0|ch,123,0);
+}
+void qmpMidiOutRtMidi::reset(uint8_t ch)
+{
+	basicMessage(0xB0|ch,120,0);
+	basicMessage(0xB0|ch,121,0);
+}
+void qmpMidiOutRtMidi::onMapped(uint8_t,int refcnt)
+{
+	if(!outport||outport->isPortOpen()||refcnt)return;
+	try
+	{
+		outport->openPort(portid);
+	}
+	catch(RtMidiError &e)
+	{
+		printf("Device initialization failure: %s\n",e.what());
+	}
+
+}
+void qmpMidiOutRtMidi::onUnmapped(uint8_t ch,int refcnt)
+{
+	panic(ch);
+	if(!refcnt)outport->closePort();
+}
+
+RtMidiOut* qmpRtMidiManager::dummy=NULL;
+void qmpRtMidiManager::createDevices()
+{
+	try{dummy=new RtMidiOut();}
+	catch(RtMidiError &e)
+	{
+		printf("Failed to initialize the dummy device: %s\n",e.what());
+		dummy=NULL;
+	}
+	for(unsigned i=0;i<dummy->getPortCount();++i)
+	devices.push_back(std::make_pair(new qmpMidiOutRtMidi(i),dummy->getPortName(i)));
+}
+void qmpRtMidiManager::deleteDevices()
+{
+	for(size_t i=0;i<devices.size();++i)
+		delete devices[i].first;
+	devices.clear();
+	delete dummy;
+}
+std::vector<std::pair<qmpMidiOutRtMidi*,std::string>> qmpRtMidiManager::getDevices()
+{
+	return devices;
+}
-- 
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