JackOutputPortRouter.java :  » Music » TuxGuitar-1.2 » org » herac » tuxguitar » jack » synthesizer » Java Open Source

package org.herac.tuxguitar.jack.synthesizer;

import org.herac.tuxguitar.gui.system.config.TGConfigManager;

public class JackOutputPortRouter {
  
  public static final int CREATE_UNIQUE_PORT = 0;
  public static final int CREATE_MULTIPLE_PORTS_BY_CHANNEL = 1;
  public static final int CREATE_MULTIPLE_PORTS_BY_PROGRAM = 2;
  
  private static final int PORT_INDEX = 0;
  private static final int CHANNEL_INDEX = 1;
  private static final int PROGRAM_INDEX = 2;
  
  private int ports;
  private int[][] channels;
  private int[][] programs;
  
  public JackOutputPortRouter(){
    this.ports = 1;
    this.channels = new int[16][3];
    this.programs = new int[128][3];
  }
  
  public int getPortCount(){
    return this.ports;
  }
  
  public int getPortRoute( int channel ){
    if( channel >= 0 && channel < this.channels.length ){
      int route = this.channels[ channel ][ PORT_INDEX ];
      return ( route >= 0 ? route : 0 );
    }
    return 0;
  }
  
  public int getChannelRoute( int channel ){
    if( channel >= 0 && channel < this.channels.length ){
      int route = this.channels[ channel ][ CHANNEL_INDEX ];
      return ( route >= 0 ? route : channel );
    }
    return 0;
  }
  
  public int getProgramRoute( int channel , int program ){
    if( channel >= 0 && channel < this.channels.length ){
      int route = this.channels[ channel ][ PROGRAM_INDEX ];
      return ( route >= 0 ? route : program );
    }
    return 0;
  }
  
  public void setProgram( int channel , int program ){
    if( channel >= 0 && channel < this.channels.length && program >= 0 && program < this.programs.length ){
      if( this.channels[ channel ][ PROGRAM_INDEX ] >= 0 ){
        if( channel != 9 ){
          int routePort = this.programs[ program ][ PORT_INDEX ];
          int routeChannel = this.programs[ program ][ CHANNEL_INDEX ];
          int routeProgram = this.programs[ program ][ PROGRAM_INDEX ];
          if( routePort >= 0 ){
            this.channels[ channel ][ PORT_INDEX ] = routePort;
          }
          if( routeChannel >= 0 ){
            this.channels[ channel ][ CHANNEL_INDEX ] = routeChannel;
          }
          if( routeProgram >= 0 ){
            this.channels[ channel ][ PROGRAM_INDEX ] = routeProgram;
          }
        }
      }
    }
  }
  
  protected void createUniquePort(){
    this.ports = 1;
    for( int i = 0 ; i < this.channels.length ; i ++ ){
      this.channels[i][ PORT_INDEX ] = 0;
      this.channels[i][ CHANNEL_INDEX ] = i;
      this.channels[i][ PROGRAM_INDEX ] = -1;
    }
    for( int i = 0 ; i < this.programs.length ; i ++ ){
      this.programs[i][ PORT_INDEX ] = -1;
      this.programs[i][ PROGRAM_INDEX ] = -1;
      this.programs[i][ CHANNEL_INDEX ] = -1;
    }
  }
  
  protected void createMultiplePortsByChannel( int[][] routing ){
    this.ports = this.channels.length;
    
    // Initialize default channel values
    for( int i = 0 ; i < this.channels.length ; i ++ ){
      this.channels[i][ PORT_INDEX ] = i;
      this.channels[i][ CHANNEL_INDEX ] = i;
      this.channels[i][ PROGRAM_INDEX ] = -1;
    }
    // Disable program routing
    for( int i = 0 ; i < this.programs.length ; i ++ ){
      this.programs[i][ PORT_INDEX ] = -1;
      this.programs[i][ PROGRAM_INDEX ] = -1;
      this.programs[i][ CHANNEL_INDEX ] = -1;
    }
    
    // load new routing
    for( int i = 0 ; i < routing.length ; i ++ ){
      if( routing[i].length == 3 ){
        int channel = routing[i][0];
        if( channel >= 0 && channel < this.channels.length ){
          this.channels[channel][ CHANNEL_INDEX ] = routing[i][1];
          this.channels[channel][ PROGRAM_INDEX ] = routing[i][2];
        }
      }
    }
  }
  
  protected void createMultiplePortsByProgram( int[][] routing ){
    this.ports = 1;
    
    // Initialize default channel values
    for( int i = 0 ; i < this.channels.length ; i ++ ){
      this.channels[i][ PORT_INDEX ] = -1;
      this.channels[i][ CHANNEL_INDEX ] = -1;
      this.channels[i][ PROGRAM_INDEX ] = 0;
    }
    
    // Initialize default program values
    for( int i = 0 ; i < this.programs.length ; i ++ ){
      this.programs[i][ PORT_INDEX ] = 0;
      this.programs[i][ PROGRAM_INDEX ] = i;
      this.programs[i][ CHANNEL_INDEX ] = -1;
    }
    
    // load new routing
    for( int i = 0 ; i < routing.length ; i ++ ){
      if( routing[i].length == 4 ){
        int program = routing[i][0];
        if( program >= 0 && program < this.programs.length ){
          if( routing[i][1] > 0 ){
            // Create a dedicated port
            this.programs[program][ PORT_INDEX ] = this.ports ++ ;
          }
          this.programs[program][ CHANNEL_INDEX ] = routing[i][2];
          this.programs[program][ PROGRAM_INDEX ] = (routing[i][3] >= 0 ? routing[i][3] : program );
        }
        // Percussion Kit
        else if( program == 128 ){
          if( routing[i][1] > 0 ){
            // Create a dedicated port
            this.channels[9][ PORT_INDEX ] = this.ports ++ ;
          }
          this.channels[9][ CHANNEL_INDEX ] = routing[i][2];
          this.channels[9][ PROGRAM_INDEX ] = routing[i][3];
        }
      }
    }
  }
  
  public void loadSettings( TGConfigManager config ){
    int type = config.getIntConfigValue("jack.midi.ports.type", CREATE_UNIQUE_PORT );
    if( type == CREATE_MULTIPLE_PORTS_BY_PROGRAM ){
      // 128 instruments + 1 percussion kit
      int[][] routing = new int[129][];
      for( int i = 0 ; i < routing.length ; i ++ ){
        routing[i] = new int[4];
        routing[i][0] = i;
        routing[i][1] = config.getIntConfigValue("jack.midi.port.program-routing.port-" + i , 0 );
        routing[i][2] = config.getIntConfigValue("jack.midi.port.program-routing.to-channel-" + i , -1 );
        routing[i][3] = config.getIntConfigValue("jack.midi.port.program-routing.to-program-" + i , -1 );
      }
      this.createMultiplePortsByProgram( routing );
    }else if( type == CREATE_MULTIPLE_PORTS_BY_CHANNEL ){
      // 16 channels
      int[][] routing = new int[16][];
      for( int i = 0 ; i < routing.length ; i ++ ){
        routing[i] = new int[3];
        routing[i][0] = i;
        routing[i][1] = config.getIntConfigValue("jack.midi.port.channel-routing.to-channel-" + i , -1 );
        routing[i][2] = config.getIntConfigValue("jack.midi.port.channel-routing.to-program-" + i , -1 );
      }
      this.createMultiplePortsByChannel( routing );
    }else{
      this.createUniquePort();
    }
  }
}