/*********************************************************************
*
*  echoplay             01 Aug 88            Copyright (c) cMIDI 1988
*
*  cMIDI function library demonstration.  File 8 of 20.
*
*********************************************************************/
#include <cmidi.h>
#include <stdio.h>

main( int argc, char *argv[] )
   {
   int i, copies, delay;

   /* Open cmidi, and prepare the track(s). */
   CmidiOpen();
   TrackPtrRegister( 1 ,TRACK_PTR_PLAY );
   TrackReadCmidiData( argv[1], 1 );
   TrackPtrPlayListInsert( 1 );
   if ((argc!=4) || ERRORQUEUED())
      {
      printf( "Proper command line format: \n\n"
   "  echoplay filename copies delay \n\n"
   "  where \"filename\" specifies name of file containing track data\n"
   "        \"copies\" specifies number of times track data is copied\n"
   "        \"delay\" specifies # ms between start of successive copies\n");
      CmidiClose(CLOSE_RESET_MPU);
      exit( 1 );
      }

   copies = atoi( argv[2] );
   delay = atoi( argv[3] )/5;
   for (i=2; i<=(copies+1); i++)
      {
        TrackPtrRegister( i ,TRACK_PTR_PLAY );
        TrackPtrCopy( i, 1 );
        TrackPtrPlayListInsert( i );
        TrackPtrDelay( i, delay*(i-1) );
        TrackPtrVelocityOn( i, -15*(i-1) );
      }

   /* Start playing track(s). */
   TrackPlay(); 

   /* Wait until playing has finished, then close cmidi. */
   while ( PLAYING() );

   CmidiClose( CLOSE_RESET_MPU | CLOSE_PRINT_ERRORS );
   }