_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   private static final int NO_POINT = -1;
  38
  39   public PandaDriver(String ip) {
  40     this.ip = ip;
  41     this.address = new NetAddress(ip, 9001);
  42     message = new OscMessage("/shady/pointbuffer");
  43     points = new int[PandaMapping.PIXELS_PER_BOARD];
  44     for (int i = 0; i < points.length; ++i) {
  45       points[i] = 0;
  46     }
  47   }
  48
  49   public PandaDriver(String ip, int[] pointList) {
  50     this(ip);
  51     for (int i = 0; i < pointList.length && i < points.length; ++i) {
  52       this.points[i] = pointList[i];
  53     }
  54   }
  55
  56   public PandaDriver(String ip, Model model, PandaMapping pm) {
  57     this(ip);
  58     buildPointList(model, pm);
  59   }
  60
  61   public void toggle() {
  62     enabled = !enabled;
  63     println("PandaBoard/" + ip + ": " + (enabled ? "ON" : "OFF"));
  64   }
  65
  66   private void buildPointList(Model model, PandaMapping pm) {
  67     final int[][] stripOrderings = new int[][] {
  68       {  2,  1,  0,  3, 13, 12, 15, 14,  4,  7,  6,  5, 11, 10,  9,  8 }, // FRONT_LEFT
  69       {  6,  5,  4,  7,  1,  0,  3,  2,  8, 11, 10,  9, 15, 14, 13, 12 }, // FRONT_RIGHT
  70       { 14, 13, 12, 15,  9,  8, 11, 10,  0,  3,  2,  1,  7,  6,  5,  4 }, // REAR_LEFT
  71       { 10,  9,  8, 11,  5,  4,  7,  6, 12, 15, 14, 13,  3,  2,  1,  0 }, // REAR_RIGHT
  72     };
  73
  74     int pi = 0;
  75     for (ChannelMapping channel : pm.channelList) {
  76       switch (channel.mode) {
  77         case ChannelMapping.MODE_CUBES:
  78           for (int rawCubeIndex : channel.objectIndices) {
  79             if (rawCubeIndex < 0) {
  80               for (int i = 0; i < Cube.POINTS_PER_CUBE; ++i) {
  81                 points[pi++] = NO_POINT;
  82               }
  83             } else {
  84               Cube cube = model.getCubeByRawIndex(rawCubeIndex);
  85               int stripOrderIndex = 0;
  86               switch (cube.wiring) {
  87                 case FRONT_LEFT: stripOrderIndex = 0; break;
  88                 case FRONT_RIGHT: stripOrderIndex = 1; break;
  89                 case REAR_LEFT: stripOrderIndex = 2; break;
  90                 case REAR_RIGHT: stripOrderIndex = 3; break;
  91               }
  92               for (int stripIndex : stripOrderings[stripOrderIndex]) {
  93                 Strip s = cube.strips.get(stripIndex);
  94                 for (int j = s.points.size() - 1; j >= 0; --j) {
  95                   points[pi++] = s.points.get(j).index;
  96                 }
  97               }
  98             }
  99           }
 100           break;
 101
 102         case ChannelMapping.MODE_BASS:
 103           // TODO(mapping): figure out how these strips are wired
 104           for (int i = 0; i < ChannelMapping.PIXELS_PER_CHANNEL; ++i) {
 105             points[pi++] = NO_POINT;
 106           }
 107           break;
 108
 109         case ChannelMapping.MODE_FLOOR:
 110           // TODO(mapping): figure out how these strips are wired
 111           for (int i = 0; i < ChannelMapping.PIXELS_PER_CHANNEL; ++i) {
 112             points[pi++] = NO_POINT;
 113           }
 114           break;
 115
 116         case ChannelMapping.MODE_SPEAKER:
 117           // TODO(mapping): figure out how these strips are wired
 118           for (int i = 0; i < ChannelMapping.PIXELS_PER_CHANNEL; ++i) {
 119             points[pi++] = NO_POINT;
 120           }
 121           break;
 122
 123         case ChannelMapping.MODE_NULL:
 124           for (int i = 0; i < ChannelMapping.PIXELS_PER_CHANNEL; ++i) {
 125             points[pi++] = NO_POINT;
 126           }
 127           break;
 128
 129         default:
 130           throw new RuntimeException("Invalid/unhandled channel mapping mode: " + channel.mode);
 131       }
 132     }
 133   }
 134
 135   public final void send(int[] colors) {
 136     if (!enabled) {
 137       return;
 138     }
 139     int len = 0;
 140     int packetNum = 0;
 141     for (int index : points) {
 142       int c = (index < 0) ? 0 : colors[index];
 143       byte r = (byte) ((c >> 16) & 0xFF);
 144       byte g = (byte) ((c >> 8) & 0xFF);
 145       byte b = (byte) ((c) & 0xFF);
 146       packet[len++] = 0;
 147       packet[len++] = r;
 148       packet[len++] = g;
 149       packet[len++] = b;
 150
 151       // Flush once packet is full buffer size
 152       if (len >= packet.length) {
 153         sendPacket(packetNum++);
 154         len = 0;
 155       }
 156     }
 157
 158     // Flush any remaining data
 159     if (len > 0) {
 160       sendPacket(packetNum++);
 161     }
 162   }
 163
 164   private void sendPacket(int packetNum) {
 165     message.clearArguments();
 166     message.add(packetNum);
 167     message.add(packet.length);
 168     message.add(packet);
 169     try {
 170       OscP5.flush(message, address);
 171     } catch (Exception x) {
 172       x.printStackTrace();
 173     }
 174   }
 175 }
 176