// OSC message
private final OscMessage message;
- // List of point indices on the board
+ // List of point indices that get sent to this board
private final int[] points;
// Packet data
- private final byte[] packet = new byte[4*352]; // TODO: de-magic-number, UDP related?
+ private final byte[] packet = new byte[4*352]; // magic number, our UDP packet size
+
+ private static final int NO_POINT = -1;
public PandaDriver(String ip) {
this.ip = ip;
- this.address = new NetAddress(ip, 9001);
+
+ // Initialize our OSC output stuff
+ address = new NetAddress(ip, 9001);
message = new OscMessage("/shady/pointbuffer");
+
+ // Build the array of points, initialize all to nothing
points = new int[PandaMapping.PIXELS_PER_BOARD];
for (int i = 0; i < points.length; ++i) {
- points[i] = 0;
+ points[i] = NO_POINT;
}
}
- public PandaDriver(String ip, int[] pointList) {
- this(ip);
- for (int i = 0; i < pointList.length && i < points.length; ++i) {
- this.points[i] = pointList[i];
- }
- }
+ /**
+ * These constant arrays indicate the order in which the strips of a cube
+ * are wired. There are four different options, depending on which bottom
+ * corner of the cube the data wire comes in.
+ */
+ private final int[][] CUBE_STRIP_ORDERINGS = new int[][] {
+ { 2, 1, 0, 3, 13, 12, 15, 14, 4, 7, 6, 5, 11, 10, 9, 8 }, // FRONT_LEFT
+ { 6, 5, 4, 7, 1, 0, 3, 2, 8, 11, 10, 9, 15, 14, 13, 12 }, // FRONT_RIGHT
+ { 14, 13, 12, 15, 9, 8, 11, 10, 0, 3, 2, 1, 7, 6, 5, 4 }, // REAR_LEFT
+ { 10, 9, 8, 11, 5, 4, 7, 6, 12, 15, 14, 13, 3, 2, 1, 0 }, // REAR_RIGHT
+ };
public PandaDriver(String ip, Model model, PandaMapping pm) {
this(ip);
- buildPointList(model, pm);
- }
-
- public void toggle() {
- enabled = !enabled;
- println("PandaBoard/" + ip + ": " + (enabled ? "ON" : "OFF"));
- }
-
- private void buildPointList(Model model, PandaMapping pm) {
- int pi = 0;
- for (int[] channel : pm.channelList) {
- for (int cubeNumber : channel) {
- if (cubeNumber <= 0) {
- for (int i = 0; i < Cube.POINTS_PER_CUBE; ++i) {
- points[pi++] = 0;
- }
- } else {
- Cube cube = model.getCubeByRawIndex(cubeNumber);
- if (cube == null) {
- throw new RuntimeException("Non-zero, non-existing cube specified in channel mapping (" + cubeNumber + ")");
- }
- final int[] stripOrder = new int[] {
- 2, 1, 0, 3, 13, 12, 15, 14, 4, 7, 6, 5, 11, 10, 9, 8
- };
- for (int stripIndex : stripOrder) {
- Strip s = cube.strips.get(stripIndex);
- for (int j = s.points.size() - 1; j >= 0; --j) {
- points[pi++] = s.points.get(j).index;
+
+ // Ok, we are initialized, time to build the array if points in order to
+ // send out. We start at the head of our point buffer, and work our way
+ // down. This is the order in which points will be sent down the wire.
+ int ci = -1;
+
+ // Iterate through all our channels
+ for (ChannelMapping channel : pm.channelList) {
+ ++ci;
+ int pi = ci * ChannelMapping.PIXELS_PER_CHANNEL;
+
+ switch (channel.mode) {
+
+ case ChannelMapping.MODE_CUBES:
+ // We have a list of cubes per channel
+ for (int rawCubeIndex : channel.objectIndices) {
+ if (rawCubeIndex < 0) {
+ // No cube here, skip ahead in the buffer
+ pi += Cube.POINTS_PER_CUBE;
+ } else {
+ // The cube exists, check which way it is wired to
+ // figure out the order of strips.
+ Cube cube = model.getCubeByRawIndex(rawCubeIndex);
+ int stripOrderIndex = 0;
+ switch (cube.wiring) {
+ case FRONT_LEFT: stripOrderIndex = 0; break;
+ case FRONT_RIGHT: stripOrderIndex = 1; break;
+ case REAR_LEFT: stripOrderIndex = 2; break;
+ case REAR_RIGHT: stripOrderIndex = 3; break;
+ }
+
+ // Iterate through all the strips on the cube and add the points
+ for (int stripIndex : CUBE_STRIP_ORDERINGS[stripOrderIndex]) {
+ // We go backwards here... in the model strips go clockwise, but
+ // the physical wires are run counter-clockwise
+ Strip s = cube.strips.get(stripIndex);
+ for (int j = s.points.size() - 1; j >= 0; --j) {
+ points[pi++] = s.points.get(j).index;
+ }
+ }
}
}
- }
+ break;
+
+ case ChannelMapping.MODE_BASS:
+ // TODO(mapping): figure out how we end up connecting the bass cabinet
+ break;
+
+ case ChannelMapping.MODE_FLOOR:
+ // TODO(mapping): figure out how these strips are wired
+ break;
+
+ case ChannelMapping.MODE_SPEAKER:
+ // TODO(mapping): figure out how these strips are wired
+ break;
+
+ case ChannelMapping.MODE_NULL:
+ // No problem, nothing on this channel!
+ break;
+
+ default:
+ throw new RuntimeException("Invalid/unhandled channel mapping mode: " + channel.mode);
}
+
}
}
+ public void toggle() {
+ enabled = !enabled;
+ println("PandaBoard/" + ip + ": " + (enabled ? "ON" : "OFF"));
+ }
+
public final void send(int[] colors) {
if (!enabled) {
return;
int len = 0;
int packetNum = 0;
for (int index : points) {
- int c = colors[index];
+ int c = (index < 0) ? 0 : colors[index];
byte r = (byte) ((c >> 16) & 0xFF);
byte g = (byte) ((c >> 8) & 0xFF);
byte b = (byte) ((c) & 0xFF);
- packet[len++] = 0;
+ packet[len++] = 0; // alpha channel, unused but makes for 4-byte alignment
packet[len++] = r;
packet[len++] = g;
packet[len++] = b;