public XactClip(SoundBank soundBank, BinaryReader clipReader)
{
State = SoundState.Stopped;
var volumeDb = XactHelpers.ParseDecibels(clipReader.ReadByte());
_defaultVolume = XactHelpers.ParseVolumeFromDecibels(volumeDb);
var clipOffset = clipReader.ReadUInt32();
// Unknown!
clipReader.ReadUInt32();
var oldPosition = clipReader.BaseStream.Position;
clipReader.BaseStream.Seek(clipOffset, SeekOrigin.Begin);
var numEvents = clipReader.ReadByte();
_events = new ClipEvent[numEvents];
for (var i = 0; i < numEvents; i++)
{
var eventInfo = clipReader.ReadUInt32();
var randomOffset = clipReader.ReadUInt16() * 0.001f;
// TODO: eventInfo still has 11 bits that are unknown!
var eventId = eventInfo & 0x1F;
var timeStamp = ((eventInfo >> 5) & 0xFFFF) * 0.001f;
var unknown = eventInfo >> 21;
switch (eventId)
{
case 0:
// Stop Event
throw new NotImplementedException("Stop event");
case 1:
{
// Unknown!
clipReader.ReadByte();
// Event flags
var eventFlags = clipReader.ReadByte();
var playRelease = (eventFlags & 0x01) == 0x01;
var panEnabled = (eventFlags & 0x02) == 0x02;
var useCenterSpeaker = (eventFlags & 0x04) == 0x04;
int trackIndex = clipReader.ReadUInt16();
int waveBankIndex = clipReader.ReadByte();
var loopCount = clipReader.ReadByte();
var panAngle = clipReader.ReadUInt16() / 100.0f;
var panArc = clipReader.ReadUInt16() / 100.0f;
_events[i] = new PlayWaveEvent(
this,
timeStamp,
randomOffset,
soundBank,
new[] { waveBankIndex },
new[] { trackIndex },
null,
0,
VariationType.Ordered,
null,
null,
loopCount,
false);
break;
}
case 3:
{
// Unknown!
clipReader.ReadByte();
// Event flags
var eventFlags = clipReader.ReadByte();
var playRelease = (eventFlags & 0x01) == 0x01;
var panEnabled = (eventFlags & 0x02) == 0x02;
var useCenterSpeaker = (eventFlags & 0x04) == 0x04;
var loopCount = clipReader.ReadByte();
var panAngle = clipReader.ReadUInt16() / 100.0f;
var panArc = clipReader.ReadUInt16() / 100.0f;
// The number of tracks for the variations.
var numTracks = clipReader.ReadUInt16();
// Not sure what most of this is.
var moreFlags = clipReader.ReadByte();
var newWaveOnLoop = (moreFlags & 0x40) == 0x40;
// The variation playlist type seems to be
// stored in the bottom 4bits only.
var variationType = (VariationType)(moreFlags & 0x0F);
// Unknown!
clipReader.ReadBytes(5);
// Read in the variation playlist.
var waveBanks = new int[numTracks];
var tracks = new int[numTracks];
var weights = new byte[numTracks];
var totalWeights = 0;
for (var j = 0; j < numTracks; j++)
{
tracks[j] = clipReader.ReadUInt16();
waveBanks[j] = clipReader.ReadByte();
var minWeight = clipReader.ReadByte();
var maxWeight = clipReader.ReadByte();
weights[j] = (byte)(maxWeight - minWeight);
totalWeights += weights[j];
}
_events[i] = new PlayWaveEvent(
this,
timeStamp,
randomOffset,
soundBank,
waveBanks,
tracks,
weights,
totalWeights,
variationType,
null,
null,
loopCount,
newWaveOnLoop);
break;
}
case 4:
{
// Unknown!
clipReader.ReadByte();
// Event flags
var eventFlags = clipReader.ReadByte();
var playRelease = (eventFlags & 0x01) == 0x01;
var panEnabled = (eventFlags & 0x02) == 0x02;
var useCenterSpeaker = (eventFlags & 0x04) == 0x04;
int trackIndex = clipReader.ReadUInt16();
int waveBankIndex = clipReader.ReadByte();
var loopCount = clipReader.ReadByte();
var panAngle = clipReader.ReadUInt16() / 100.0f;
var panArc = clipReader.ReadUInt16() / 100.0f;
// Pitch variation range
var minPitch = clipReader.ReadInt16() / 1000.0f;
var maxPitch = clipReader.ReadInt16() / 1000.0f;
// Volume variation range
var minVolume = XactHelpers.ParseVolumeFromDecibels(clipReader.ReadByte());
var maxVolume = XactHelpers.ParseVolumeFromDecibels(clipReader.ReadByte());
// Filter variation
var minFrequency = clipReader.ReadSingle() / 1000.0f;
var maxFrequency = clipReader.ReadSingle() / 1000.0f;
var minQ = clipReader.ReadSingle();
var maxQ = clipReader.ReadSingle();
// Unknown!
clipReader.ReadByte();
_events[i] = new PlayWaveEvent(
this,
timeStamp,
randomOffset,
soundBank,
new[] { waveBankIndex },
new[] { trackIndex },
null,
0,
VariationType.Ordered,
new Vector2(minVolume, maxVolume - minVolume),
new Vector2(minPitch, maxPitch - minPitch),
loopCount,
false);
break;
}
case 6:
{
// Unknown!
clipReader.ReadByte();
// Event flags
var eventFlags = clipReader.ReadByte();
var playRelease = (eventFlags & 0x01) == 0x01;
var panEnabled = (eventFlags & 0x02) == 0x02;
var useCenterSpeaker = (eventFlags & 0x04) == 0x04;
var loopCount = clipReader.ReadByte();
var panAngle = clipReader.ReadUInt16() / 100.0f;
var panArc = clipReader.ReadUInt16() / 100.0f;
// Pitch variation range
var minPitch = clipReader.ReadInt16() / 1000.0f;
var maxPitch = clipReader.ReadInt16() / 1000.0f;
// Volume variation range
var minVolume = XactHelpers.ParseVolumeFromDecibels(clipReader.ReadByte());
var maxVolume = XactHelpers.ParseVolumeFromDecibels(clipReader.ReadByte());
// Filter variation range
var minFrequency = clipReader.ReadSingle() / 1000.0f;
var maxFrequency = clipReader.ReadSingle() / 1000.0f;
var minQ = clipReader.ReadSingle();
var maxQ = clipReader.ReadSingle();
// Unknown!
clipReader.ReadByte();
// TODO: Still has unknown bits!
var variationFlags = clipReader.ReadByte();
// Enable pitch variation
Vector2?pitchVar = null;
if ((variationFlags & 0x10) == 0x10)
{
pitchVar = new Vector2(minPitch, maxPitch - minPitch);
}
// Enable volume variation
Vector2?volumeVar = null;
if ((variationFlags & 0x20) == 0x20)
{
volumeVar = new Vector2(minVolume, maxVolume - minVolume);
}
// Enable filter variation
Vector4?filterVar = null;
if ((variationFlags & 0x40) == 0x40)
{
filterVar = new Vector4(minFrequency, maxFrequency - minFrequency, minQ, maxQ - minQ);
}
// The number of tracks for the variations.
var numTracks = clipReader.ReadUInt16();
// Not sure what most of this is.
var moreFlags = clipReader.ReadByte();
var newWaveOnLoop = (moreFlags & 0x40) == 0x40;
// The variation playlist type seems to be
// stored in the bottom 4bits only.
var variationType = (VariationType)(moreFlags & 0x0F);
// Unknown!
clipReader.ReadBytes(5);
// Read in the variation playlist.
var waveBanks = new int[numTracks];
var tracks = new int[numTracks];
var weights = new byte[numTracks];
var totalWeights = 0;
for (var j = 0; j < numTracks; j++)
{
tracks[j] = clipReader.ReadUInt16();
waveBanks[j] = clipReader.ReadByte();
var minWeight = clipReader.ReadByte();
var maxWeight = clipReader.ReadByte();
weights[j] = (byte)(maxWeight - minWeight);
totalWeights += weights[j];
}
_events[i] = new PlayWaveEvent(
this,
timeStamp,
randomOffset,
soundBank,
waveBanks,
tracks,
weights,
totalWeights,
variationType,
volumeVar,
pitchVar,
loopCount,
newWaveOnLoop);
break;
}
case 7:
// Pitch Event
throw new NotImplementedException("Pitch event");
case 8:
{
// Unknown!
clipReader.ReadBytes(2);
// Event flags
var eventFlags = clipReader.ReadByte();
var isAdd = (eventFlags & 0x01) == 0x01;
// The replacement or additive volume.
var decibles = clipReader.ReadSingle() / 100.0f;
var volume = XactHelpers.ParseVolumeFromDecibels(decibles + (isAdd ? volumeDb : 0));
// Unknown!
clipReader.ReadBytes(9);
_events[i] = new VolumeEvent(this,
timeStamp,
randomOffset,
volume);
break;
}
case 17:
// Volume Repeat Event
throw new NotImplementedException("Volume repeat event");
case 9:
// Marker Event
throw new NotImplementedException("Marker event");
default:
throw new NotSupportedException("Unknown event " + eventId);
}
}
clipReader.BaseStream.Seek(oldPosition, SeekOrigin.Begin);
}
