/// <summary>
/// http://wiibrew.org/index.php?title=Wiimote#Basic_Mode
/// </summary>
protected static bool ParseBasicBeacon(byte[] buff, int offset, int beaconIndex, BasicIRBeacon irBeacon)
{
switch (beaconIndex)
{
case 0:
irBeacon.X = buff[offset + 0] | ((buff[offset + 2] >> 4) & 0x03) << 8;
irBeacon.Y = buff[offset + 1] | ((buff[offset + 2] >> 6) & 0x03) << 8;
break;
case 1:
irBeacon.X = buff[offset + 3] | ((buff[offset + 2] >> 0) & 0x03) << 8;
irBeacon.Y = buff[offset + 4] | ((buff[offset + 2] >> 2) & 0x03) << 8;
break;
case 2:
irBeacon.X = buff[11] | ((buff[13] >> 4) & 0x03) << 8;
irBeacon.Y = buff[12] | ((buff[13] >> 6) & 0x03) << 8;
break;
case 3:
irBeacon.X = buff[14] | ((buff[13] >> 0) & 0x03) << 8;
irBeacon.Y = buff[15] | ((buff[13] >> 2) & 0x03) << 8;
break;
}
return(!(irBeacon.X == 1023 && irBeacon.Y == 1023));
}
protected override bool ParseReport(byte[] report)
{
if (report[0] < 0x20)
{
throw new InvalidOperationException("Received an output report!");
}
InputReport type = (InputReport)report[0];
if (type >= InputReport.Buttons && type <= InputReport.ButtonsAccelerometer36IrB)
{
if (type == InputReport.ButtonsAccelerometer36IrB)
{
ReportingMode = ReportingMode.ButtonsAccelerometer36Ir;
}
else
{
ReportingMode = (ReportingMode)type;
}
IRMode irMode = GetIrMode(type);
if (this._IrMode != irMode)
{
for (int i = 0; i < _CachedIRBeacons.Length; i++)
{
BasicIRBeacon newBeacon = null;
switch (irMode)
{
case IRMode.Basic:
newBeacon = new BasicIRBeacon();
break;
case IRMode.Extended:
newBeacon = new ExtendedIRBeacon();
break;
case IRMode.Full:
newBeacon = new FullIRBeacon();
break;
}
_CachedIRBeacons[i] = newBeacon;
_IRBeacons[i] = null;
}
this._IrMode = irMode;
}
}
switch (type)
{
case InputReport.Buttons:
ParseButtons(report, 1);
break;
case InputReport.ButtonsAccelerometer:
ParseButtons(report, 1);
ParseAccelerometer(report, 3);
break;
case InputReport.Buttons8Extension:
ParseButtons(report, 1);
ParseExtension(report, 3, 8);
break;
case InputReport.ButtonsAccelerometer12Ir:
{
ParseButtons(report, 1);
ParseAccelerometer(report, 3);
ExtendedIRBeacon irBeacon;
// Parse beacon 0.
irBeacon = (ExtendedIRBeacon)_CachedIRBeacons[0];
_IRBeacons[0] = ParseExtendedBeacon(report, 6, irBeacon) ? irBeacon : null;
// Parse beacon 1.
irBeacon = (ExtendedIRBeacon)_CachedIRBeacons[1];
_IRBeacons[1] = ParseExtendedBeacon(report, 9, irBeacon) ? irBeacon : null;
// Parse beacon 2.
irBeacon = (ExtendedIRBeacon)_CachedIRBeacons[2];
_IRBeacons[2] = ParseExtendedBeacon(report, 12, irBeacon) ? irBeacon : null;
// Parse beacon 3.
irBeacon = (ExtendedIRBeacon)_CachedIRBeacons[3];
_IRBeacons[3] = ParseExtendedBeacon(report, 15, irBeacon) ? irBeacon : null;
}
break;
case InputReport.Buttons19Extension:
ParseButtons(report, 1);
ParseExtension(report, 3, 19);
break;
case InputReport.ButtonsAccelerometer16Extension:
ParseButtons(report, 1);
ParseAccelerometer(report, 3);
ParseExtension(report, 6, 16);
break;
case InputReport.Buttons10Ir9Extension:
case InputReport.ButtonsAccelerometer10Ir6Extension:
{
int offset = 1;
offset += ParseButtons(report, offset);
if (type == InputReport.ButtonsAccelerometer10Ir6Extension)
{
offset += ParseAccelerometer(report, offset);
}
BasicIRBeacon irBeacon;
// Parse beacon 0.
irBeacon = _CachedIRBeacons[0];
_IRBeacons[0] = ParseBasicBeacon(report, offset, 0, irBeacon) ? irBeacon : null;
// Parse beacon 1.
irBeacon = _CachedIRBeacons[1];
_IRBeacons[1] = ParseBasicBeacon(report, offset, 1, irBeacon) ? irBeacon : null;
// Parse beacon 2.
irBeacon = _CachedIRBeacons[2];
_IRBeacons[2] = ParseBasicBeacon(report, offset + 5, 0, irBeacon) ? irBeacon : null;
// Parse beacon 3.
irBeacon = _CachedIRBeacons[3];
_IRBeacons[3] = ParseBasicBeacon(report, offset + 5, 1, irBeacon) ? irBeacon : null;
offset += 10; // Each pair of IR-beacons is 5 bytes.
if (type == InputReport.ButtonsAccelerometer10Ir6Extension)
{
ParseExtension(report, offset, 6);
}
else
{
ParseExtension(report, offset, 9);
}
}
break;
case InputReport.Extension:
ParseExtension(report, 1, 21);
break;
case InputReport.ButtonsAccelerometer36IrA:
{
ParseButtons(report, 1); // since button information is complete on both the interlaced reports it needs no temporary storage
_PartialAccelerometerX = report[3];
_PartialAccelerometerZ = (ushort)(((report[2] & 0x60) << 1) | ((report[1] & 0x60) >> 1));
_PartialIRBeaconOneResult = ParseFullBeacon(report, 4, (FullIRBeacon)_CachedIRBeacons[0]);
_PartialIRBeaconTwoResult = ParseFullBeacon(report, 13, (FullIRBeacon)_CachedIRBeacons[1]);
}
break;
case InputReport.ButtonsAccelerometer36IrB:
{
ParseButtons(report, 1);
// Complete the _PartialAccelerometerZ field
_PartialAccelerometerZ = (ushort)(_PartialAccelerometerZ | ((report[2] & 60) >> 3) | ((report[1] & 60) >> 5));
// Initialize the accelerometer if it was not yet initialized (should never happen).
if (Accelerometer == null)
{
ReadCalibrationData();
}
// Construct the new accelerometer-values from now completed data
Accelerometer.Raw.X = _PartialAccelerometerX;
Accelerometer.Raw.Y = report[3];
Accelerometer.Raw.Z = _PartialAccelerometerZ;
UpdateCalibratedAccelerometer();
FullIRBeacon irBeacon;
// Commit partial irbeacon from 'a' report
IRBeacons[0] = _PartialIRBeaconOneResult ? _CachedIRBeacons[0] : null;
// Commit partial irbeacon from 'a' report
IRBeacons[1] = _PartialIRBeaconTwoResult ? _CachedIRBeacons[1] : null;
// Parse beacon 2.
irBeacon = (FullIRBeacon)_CachedIRBeacons[2];
IRBeacons[2] = ParseFullBeacon(report, 4, irBeacon) ? irBeacon : null;
// Parse beacon 3.
irBeacon = (FullIRBeacon)_CachedIRBeacons[3];
IRBeacons[3] = ParseFullBeacon(report, 13, irBeacon) ? irBeacon : null;
}
break;
case InputReport.GetStatusResult:
ParseButtons(report, 1);
ParseStatus(report);
break;
case InputReport.ReadDataResult:
ParseButtons(report, 1);
// The rest is handled by the ReadData method (waiting for the report).
break;
case InputReport.WriteDataResult:
// The rest is handled by the WriteData method (waiting for the report).
break;
default:
Debug.WriteLine("Unknown report type: " + type.ToString("x"));
return(false);
}
if ((type >= InputReport.Buttons || type == InputReport.GetStatusResult) && (type != InputReport.ButtonsAccelerometer36IrA))
{
OnUpdated();
}
return(true);
}
