Add MIDI interface classes

include/boo/audiodev/IAudioVoiceEngine.hpp

@@ -45,7 +45,7 @@ struct IAudioVoiceEngine
     virtual void pumpAndMixVoices()=0;
 
     /** Get list of MIDI devices found on system */
-    virtual std::vector<std::string> enumerateMIDIDevices() const=0;
+    virtual std::vector<std::pair<std::string, std::string>> enumerateMIDIDevices() const=0;
 
     /** Create ad-hoc MIDI in port and register with system */
     virtual std::unique_ptr<IMIDIIn> newVirtualMIDIIn()=0;

include/boo/audiodev/IMIDIPort.hpp

@@ -2,6 +2,7 @@
 #define BOO_IMIDIPORT_HPP
 
 #include <string>
+#include <functional>
 
 namespace boo
 {

include/boo/audiodev/IMIDIReader.hpp

@@ -0,0 +1,43 @@
+#ifndef BOO_IMIDIREADER_HPP
+#define BOO_IMIDIREADER_HPP
+
+#include <stdlib.h>
+#include <stdint.h>
+
+namespace boo
+{
+
+class IMIDIReader
+{
+public:
+    virtual void noteOff(uint8_t chan, uint8_t key, uint8_t velocity)=0;
+    virtual void noteOn(uint8_t chan, uint8_t key, uint8_t velocity)=0;
+    virtual void notePressure(uint8_t chan, uint8_t key, uint8_t pressure)=0;
+    virtual void controlChange(uint8_t chan, uint8_t control, uint8_t value)=0;
+    virtual void programChange(uint8_t chan, uint8_t program)=0;
+    virtual void channelPressure(uint8_t chan, uint8_t pressure)=0;
+    virtual void pitchBend(uint8_t chan, int16_t pitch)=0;
+
+    virtual void allSoundOff(uint8_t chan)=0;
+    virtual void resetAllControllers(uint8_t chan)=0;
+    virtual void localControl(uint8_t chan, bool on)=0;
+    virtual void allNotesOff(uint8_t chan)=0;
+    virtual void omniMode(uint8_t chan, bool on)=0;
+    virtual void polyMode(uint8_t chan, bool on)=0;
+
+    virtual void sysex(const void* data, size_t len)=0;
+    virtual void timeCodeQuarterFrame(uint8_t message, uint8_t value)=0;
+    virtual void songPositionPointer(uint16_t pointer)=0;
+    virtual void songSelect(uint8_t song)=0;
+    virtual void tuneRequest()=0;
+
+    virtual void startSeq()=0;
+    virtual void continueSeq()=0;
+    virtual void stopSeq()=0;
+
+    virtual void reset()=0;
+};
+
+}
+
+#endif // BOO_IMIDIREADER_HPP

include/boo/audiodev/MIDIDecoder.hpp

@@ -0,0 +1,32 @@
+#ifndef BOO_MIDIDECODER_HPP
+#define BOO_MIDIDECODER_HPP
+
+#include "boo/audiodev/IMIDIReader.hpp"
+#include "boo/audiodev/IMIDIPort.hpp"
+#include <functional>
+
+namespace boo
+{
+
+class MIDIDecoder
+{
+    IMIDIReader& m_out;
+    uint8_t m_status = 0;
+
+    struct ReadController
+    {
+        IMIDIIn& m_in;
+        bool readByte(uint8_t& a);
+        bool read2Bytes(uint8_t& a, uint8_t& b);
+        bool readBuffer(void* buf, size_t len);
+        ReadController(IMIDIIn& in) : m_in(in) {}
+    } m_readControl;
+    uint32_t _readContinuedValue(uint8_t a);
+public:
+    MIDIDecoder(IMIDIIn& in, IMIDIReader& out) : m_readControl(in), m_out(out) {}
+    bool receiveBytes();
+};
+
+}
+
+#endif // BOO_MIDIDECODER_HPP

include/boo/audiodev/MIDIEncoder.hpp

@@ -0,0 +1,50 @@
+#ifndef BOO_MIDIENCODER_HPP
+#define BOO_MIDIENCODER_HPP
+
+#include "boo/audiodev/IMIDIReader.hpp"
+#include "boo/audiodev/IMIDIPort.hpp"
+
+namespace boo
+{
+
+template <class Sender>
+class MIDIEncoder : public IMIDIReader
+{
+    Sender& m_sender;
+    uint8_t m_status = 0;
+    void _sendMessage(const uint8_t* data, size_t len);
+    void _sendContinuedValue(uint32_t val);
+public:
+    MIDIEncoder(Sender& sender) : m_sender(sender) {}
+
+    void noteOff(uint8_t chan, uint8_t key, uint8_t velocity);
+    void noteOn(uint8_t chan, uint8_t key, uint8_t velocity);
+    void notePressure(uint8_t chan, uint8_t key, uint8_t pressure);
+    void controlChange(uint8_t chan, uint8_t control, uint8_t value);
+    void programChange(uint8_t chan, uint8_t program);
+    void channelPressure(uint8_t chan, uint8_t pressure);
+    void pitchBend(uint8_t chan, int16_t pitch);
+
+    void allSoundOff(uint8_t chan);
+    void resetAllControllers(uint8_t chan);
+    void localControl(uint8_t chan, bool on);
+    void allNotesOff(uint8_t chan);
+    void omniMode(uint8_t chan, bool on);
+    void polyMode(uint8_t chan, bool on);
+
+    void sysex(const void* data, size_t len);
+    void timeCodeQuarterFrame(uint8_t message, uint8_t value);
+    void songPositionPointer(uint16_t pointer);
+    void songSelect(uint8_t song);
+    void tuneRequest();
+
+    void startSeq();
+    void continueSeq();
+    void stopSeq();
+
+    void reset();
+};
+
+}
+
+#endif // BOO_MIDIENCODER_HPP