S283 Planetary Science &… the Search for Life CD 3/0_CD-ROM.iso/install/jre1_3/lib/rt.jar/javax/sound/midi/ShortMessage.class

Java Class File | 1979-12-31 | 2.9 KB | 195 lines

package javax.sound.midi;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FilterInputStream;
import java.io.IOException;

public class ShortMessage extends MidiMessage {
   public static final int MIDI_TIME_CODE = 241;
   public static final int SONG_POSITION_POINTER = 242;
   public static final int SONG_SELECT = 243;
   public static final int TUNE_REQUEST = 246;
   public static final int END_OF_EXCLUSIVE = 247;
   public static final int TIMING_CLOCK = 248;
   public static final int START = 250;
   public static final int CONTINUE = 251;
   public static final int STOP = 252;
   public static final int ACTIVE_SENSING = 254;
   public static final int SYSTEM_RESET = 255;
   public static final int NOTE_OFF = 128;
   public static final int NOTE_ON = 144;
   public static final int POLY_PRESSURE = 160;
   public static final int CONTROL_CHANGE = 176;
   public static final int PROGRAM_CHANGE = 192;
   public static final int CHANNEL_PRESSURE = 208;
   public static final int PITCH_BEND = 224;
   private static byte[] defaultMessage = new byte[]{-112, -1, 0};

   public ShortMessage() {
      this(defaultMessage);
   }

   protected ShortMessage(byte[] var1) {
      super(var1);
   }

   public void setMessage(int var1) throws InvalidMidiDataException {
      int var2 = this.getDataLength(var1);
      if (var2 != 0) {
         throw new InvalidMidiDataException("Status byte; " + var1 + " requires " + var2 + " data bytes");
      } else {
         try {
            ByteArrayOutputStream var3 = new ByteArrayOutputStream();
            DataOutputStream var4 = new DataOutputStream(var3);
            var4.writeByte(var1);
            super.data = var3.toByteArray();
            super.length = super.data.length;
         } catch (IOException var5) {
         }

      }
   }

   public void setMessage(int var1, int var2, int var3) throws InvalidMidiDataException {
      int var4 = this.getDataLength(var1);

      try {
         ByteArrayOutputStream var5 = new ByteArrayOutputStream();
         DataOutputStream var6 = new DataOutputStream(var5);
         var6.writeByte(var1);
         if (var4 >= 1) {
            var6.writeByte(var2);
         }

         if (var4 >= 2) {
            var6.writeByte(var3);
         }

         super.data = var5.toByteArray();
         super.length = super.data.length;
      } catch (IOException var7) {
      }

   }

   public void setMessage(int var1, int var2, int var3, int var4) throws InvalidMidiDataException {
      int var5 = var1 & 240 | var2 & 15;
      int var6 = this.getDataLength(var5);

      try {
         ByteArrayOutputStream var7 = new ByteArrayOutputStream();
         DataOutputStream var8 = new DataOutputStream(var7);
         var8.writeByte(var5);
         if (var6 >= 1) {
            var8.writeByte(var3);
         }

         if (var6 >= 2) {
            var8.writeByte(var4);
         }

         super.data = var7.toByteArray();
         super.length = super.data.length;
      } catch (IOException var9) {
      }

   }

   public int getChannel() {
      int var1 = ((MidiMessage)this).getStatus();
      return var1 & 15;
   }

   public int getCommand() {
      int var1 = ((MidiMessage)this).getStatus();
      return var1 & 240;
   }

   public int getData1() {
      int var1 = 0;

      try {
         int var2 = ((MidiMessage)this).getStatus();
         int var3 = this.getDataLength(var2);
         if (var3 < 1) {
         }

         ByteArrayInputStream var4 = new ByteArrayInputStream(super.data, 0, super.length);
         DataInputStream var5 = new DataInputStream(var4);
         ((FilterInputStream)var5).skip(1L);
         var1 = var5.readUnsignedByte();
      } catch (InvalidMidiDataException var6) {
      } catch (IOException var7) {
      }

      return var1;
   }

   public int getData2() {
      int var1 = 0;

      try {
         int var2 = ((MidiMessage)this).getStatus();
         int var3 = this.getDataLength(var2);
         if (var3 < 2) {
         }

         ByteArrayInputStream var4 = new ByteArrayInputStream(super.data, 0, super.length);
         DataInputStream var5 = new DataInputStream(var4);
         ((FilterInputStream)var5).skip(2L);
         var1 = var5.readUnsignedByte();
      } catch (InvalidMidiDataException var6) {
      } catch (IOException var7) {
      }

      return var1;
   }

   public Object clone() {
      byte[] var1 = new byte[super.length];
      System.arraycopy(super.data, 0, var1, 0, var1.length);
      ShortMessage var2 = new ShortMessage(var1);
      return var2;
   }

   protected final int getDataLength(int var1) throws InvalidMidiDataException {
      switch (var1) {
         case 241:
         case 243:
            return 1;
         case 242:
            return 2;
         case 244:
         case 245:
         default:
            switch (var1 & 240) {
               case 128:
               case 144:
               case 160:
               case 176:
               case 224:
                  return 2;
               case 192:
               case 208:
                  return 1;
               default:
                  throw new InvalidMidiDataException("Invalid status byte: " + var1);
            }
         case 246:
         case 247:
         case 248:
         case 249:
         case 250:
         case 251:
         case 252:
         case 253:
         case 254:
         case 255:
            return 0;
      }
   }
}