[EMU_TEMPLATE] Implement around MIDI.This APIs are different from UPSTREAM.

diff --git a/source/src/emu_template.h b/source/src/emu_template.h
index b213f4d..30a852f 100644 (file)
--- a/source/src/emu_template.h
+++ b/source/src/emu_template.h
@@ -364,6 +364,37 @@ public:
        virtual void send_socket_data(int ch) {}
        virtual void recv_socket_data(int ch) {}
 
+       // MIDI
+       // Note: OSD's API will be different from upstream.
+       //       Because, will use libPortMidi to access devices,
+       //       seems to need timestamp (to send data).
+       //       See, https://portmedia.sourceforge.net/portmidi/ .
+       //       Optionally, set timestamp for relative usec at VM.
+       // 20230118 K.O
+       virtual void __FASTCALL send_to_midi(uint8_t data, int ch = 0, double timestamp_usec = 0.0) {}
+       virtual bool __FASTCALL recv_from_midi(uint8_t* data, int ch = 0, double timestamp_usec = 0.0) { return false; }
+
+       // Send / Receive with timeout.
+       // If timeout (no connection) , OSD calls EMU::notify_timeout_*_midi(ch) .
+       // If Success to communication, OSD calls ready_*_midi(ch, timestamp).
+       virtual bool __FASTCALL send_to_midi_timeout(uint8_t data, uint64_t timeout_ms = 0, int ch = 0, double timestamp_usec = 0.0) { return true; /* dummy send. */ }
+       virtual bool __FASTCALL recv_from_midi_timeout(uint8_t* data,  uint64_t timeout_ms = 0,  int ch = 0, double timestamp_usec = 0.0) { return false; }
+       virtual void __FASTCALL notify_timeout_sending_to_midi(int ch = 0) {}
+       virtual void __FASTCALL notify_timeout_receiving_from_midi(int ch = 0) {}
+       
+       // Reset physical midi device(s). nagative value will reset all.
+       virtual void __FASTCALL reset_to_midi(int ch = -1, double timestamp_usec = 0.0) {}
+       // Belows are interface between osd and vm/devices.
+       // Some interface devices on VM may have handshake (maybe via UART).
+       virtual void __FASTCALL initialize_midi_device(bool handshake_from_midi = false,
+                                                                                                  bool handshake_to_midi = false,
+                                                                                                  int ch = 0)
+       {}
+       virtual void __FASTCALL ready_receive_from_midi(int ch = 0, double timestamp_usec = 0.0) {}
+       virtual void __FASTCALL ready_send_to_midi(int ch = 0, double timestamp_usec = 0.0) {}
+       virtual void __FASTCALL request_stop_to_receive_from_midi(int ch = 0, double timestamp_usec = 0.0) {}
+       virtual void __FASTCALL request_stop_to_send_to_midi(int ch = 0, double timestamp_usec = 0.0) {}
+       
        // debugger
        virtual void initialize_debugger() { }
        virtual void release_debugger() { }