_PandaDriver.pde

   1 import netP5.*;
   2 import oscP5.*;
   3
   4 /**
   5  *     DOUBLE BLACK DIAMOND        DOUBLE BLACK DIAMOND
   6  *
   7  *         //\\   //\\                 //\\   //\\
   8  *        ///\\\ ///\\\               ///\\\ ///\\\
   9  *        \\\/// \\\///               \\\/// \\\///
  10  *         \\//   \\//                 \\//   \\//
  11  *
  12  *        EXPERTS ONLY!!              EXPERTS ONLY!!
  13  *
  14  * This class implements the output function to the Panda Boards. It
  15  * will be moved into GLucose once stabilized.
  16  */
  17 public class PandaDriver {
  18
  19   // IP address
  20   public final String ip;
  21
  22   // Address to send to
  23   private final NetAddress address;
  24
  25   // Whether board output is enabled
  26   private boolean enabled = false;
  27
  28   // OSC message
  29   private final OscMessage message;
  30
  31   // List of point indices on the board
  32   private final int[] points;
  33
  34   // Packet data
  35   private final byte[] packet = new byte[4*352]; // TODO: de-magic-number, UDP related?
  36
  37   public PandaDriver(String ip) {
  38     this.ip = ip;
  39     this.address = new NetAddress(ip, 9001);
  40     message = new OscMessage("/shady/pointbuffer");
  41     points = new int[PandaMapping.PIXELS_PER_BOARD];
  42     for (int i = 0; i < points.length; ++i) {
  43       points[i] = 0;
  44     }
  45   }
  46
  47   public PandaDriver(String ip, int[] pointList) {
  48     this(ip);
  49     for (int i = 0; i < pointList.length && i < points.length; ++i) {
  50       this.points[i] = pointList[i];
  51     }
  52   }
  53
  54   public PandaDriver(String ip, Model model, PandaMapping pm) {
  55     this(ip);
  56     buildPointList(model, pm);
  57   }
  58
  59   public void toggle() {
  60     enabled = !enabled;
  61     println("PandaBoard/" + ip + ": " + (enabled ? "ON" : "OFF"));
  62   }
  63
  64   private void buildPointList(Model model, PandaMapping pm) {
  65     int pi = 0;
  66     for (int[] channel : pm.channelList) {
  67       for (int cubeNumber : channel) {
  68         if (cubeNumber <= 0) {
  69           for (int i = 0; i < Cube.POINTS_PER_CUBE; ++i) {
  70             points[pi++] = 0;
  71           }
  72         } else {
  73           Cube cube = model.getCubeByRawIndex(cubeNumber);
  74           if (cube == null) {
  75             throw new RuntimeException("Non-zero, non-existing cube specified in channel mapping (" + cubeNumber + ")");
  76           }
  77           final int[] stripOrder = new int[] {
  78             2, 1, 0, 3, 13, 12, 15, 14, 4, 7, 6, 5, 11, 10, 9, 8
  79           };
  80           for (int stripIndex : stripOrder) {
  81             Strip s = cube.strips.get(stripIndex);
  82             for (int j = s.points.size() - 1; j >= 0; --j) {
  83               points[pi++] = s.points.get(j).index;
  84             }
  85           }
  86         }
  87       }
  88     }
  89   }
  90
  91   public final void send(int[] colors) {
  92     if (!enabled) {
  93       return;
  94     }
  95     int len = 0;
  96     int packetNum = 0;
  97     for (int index : points) {
  98       int c = colors[index];
  99       byte r = (byte) ((c >> 16) & 0xFF);
 100       byte g = (byte) ((c >> 8) & 0xFF);
 101       byte b = (byte) ((c) & 0xFF);
 102       packet[len++] = 0;
 103       packet[len++] = r;
 104       packet[len++] = g;
 105       packet[len++] = b;
 106
 107       // Flush once packet is full buffer size
 108       if (len >= packet.length) {
 109         sendPacket(packetNum++);
 110         len = 0;
 111       }
 112     }
 113
 114     // Flush any remaining data
 115     if (len > 0) {
 116       sendPacket(packetNum++);
 117     }
 118   }
 119
 120   private void sendPacket(int packetNum) {
 121     message.clearArguments();
 122     message.add(packetNum);
 123     message.add(packet.length);
 124     message.add(packet);
 125     try {
 126       OscP5.flush(message, address);
 127     } catch (Exception x) {
 128       x.printStackTrace();
 129     }
 130   }
 131 }
 132