add RtMini test/library (works under Windows)

minor cleanups

btgui/MidiTest/cmidiin.cpp

@@ -0,0 +1,111 @@
+//*****************************************//
+//  cmidiin.cpp
+//  by Gary Scavone, 2003-2004.
+//
+//  Simple program to test MIDI input and
+//  use of a user callback function.
+//
+//*****************************************//
+
+#include <iostream>
+#include <cstdlib>
+#include "RtMidi.h"
+
+void usage( void ) {
+  // Error function in case of incorrect command-line
+  // argument specifications.
+  std::cout << "\nuseage: cmidiin <port>\n";
+  std::cout << "    where port = the device to use (default = 0).\n\n";
+  exit( 0 );
+}
+
+void mycallback( double deltatime, std::vector< unsigned char > *message, void *userData )
+{
+  unsigned int nBytes = message->size();
+  for ( unsigned int i=0; i<nBytes; i++ )
+    std::cout << "Byte " << i << " = " << (int)message->at(i) << ", ";
+  if ( nBytes > 0 )
+    std::cout << "stamp = " << deltatime << std::endl;
+}
+
+// This function should be embedded in a try/catch block in case of
+// an exception.  It offers the user a choice of MIDI ports to open.
+// It returns false if there are no ports available.
+bool chooseMidiPort( RtMidiIn *rtmidi );
+
+int main( int argc, char *argv[] )
+{
+  RtMidiIn *midiin = 0;
+
+  // Minimal command-line check.
+  if ( argc > 2 ) usage();
+
+  try {
+
+    // RtMidiIn constructor
+    midiin = new RtMidiIn();
+
+    // Call function to select port.
+    if ( chooseMidiPort( midiin ) == false ) goto cleanup;
+
+    // Set our callback function.  This should be done immediately after
+    // opening the port to avoid having incoming messages written to the
+    // queue instead of sent to the callback function.
+    midiin->setCallback( &mycallback );
+
+    // Don't ignore sysex, timing, or active sensing messages.
+    midiin->ignoreTypes( false, false, false );
+
+    std::cout << "\nReading MIDI input ... press <enter> to quit.\n";
+    char input;
+    std::cin.get(input);
+
+  } catch ( RtError &error ) {
+    error.printMessage();
+  }
+
+ cleanup:
+
+  delete midiin;
+
+  return 0;
+}
+
+bool chooseMidiPort( RtMidiIn *rtmidi )
+{
+  std::cout << "\nWould you like to open a virtual input port? [y/N] ";
+
+  std::string keyHit;
+  std::getline( std::cin, keyHit );
+  if ( keyHit == "y" ) {
+    rtmidi->openVirtualPort();
+    return true;
+  }
+
+  std::string portName;
+  unsigned int i = 0, nPorts = rtmidi->getPortCount();
+  if ( nPorts == 0 ) {
+    std::cout << "No input ports available!" << std::endl;
+    return false;
+  }
+
+  if ( nPorts == 1 ) {
+    std::cout << "\nOpening " << rtmidi->getPortName() << std::endl;
+  }
+  else {
+    for ( i=0; i<nPorts; i++ ) {
+      portName = rtmidi->getPortName(i);
+      std::cout << "  Input port #" << i << ": " << portName << '\n';
+    }
+
+    do {
+      std::cout << "\nChoose a port number: ";
+      std::cin >> i;
+    } while ( i >= nPorts );
+  }
+
+  std::getline( std::cin, keyHit );  // used to clear out stdin
+  rtmidi->openPort( i );
+
+  return true;
+}