internal static W3dAdaptiveDeltaAnimationChannel Parse(BinaryReader reader, W3dParseContext context, W3dAdaptiveDeltaBitCount bitCount)
{
return ParseChunk(reader, context, header =>
{
var result = new W3dAdaptiveDeltaAnimationChannel
{
NumTimeCodes = reader.ReadUInt32(),
Pivot = reader.ReadUInt16(),
VectorLength = reader.ReadByte(),
ChannelType = reader.ReadByteAsEnum<W3dAnimationChannelType>(),
Scale = reader.ReadSingle(),
};
W3dAnimationChannel.ValidateChannelDataSize(result.ChannelType, result.VectorLength);
result.Data = W3dAdaptiveDeltaData.Parse(
reader,
result.NumTimeCodes,
result.ChannelType,
result.VectorLength,
bitCount);
// Skip 3 unknown bytes at chunk end.
reader.BaseStream.Seek(3, SeekOrigin.Current);
return result;
});
}
internal static W3dTimeCodedAnimationChannel Parse(BinaryReader reader, W3dParseContext context)
{
return(ParseChunk(reader, context, header =>
{
var result = new W3dTimeCodedAnimationChannel
{
NumTimeCodes = reader.ReadUInt32(),
Pivot = reader.ReadUInt16(),
VectorLength = reader.ReadByte(),
ChannelType = reader.ReadByteAsEnum <W3dAnimationChannelType>()
};
W3dAnimationChannel.ValidateChannelDataSize(result.ChannelType, result.VectorLength);
var data = new W3dTimeCodedDatum[result.NumTimeCodes];
for (var i = 0; i < result.NumTimeCodes; i++)
{
data[i] = W3dTimeCodedDatum.Parse(reader, result.ChannelType);
}
result.Data = data;
return result;
}));
}
internal static W3dAnimation Parse(BinaryReader reader, W3dParseContext context)
{
return(ParseChunk(reader, context, header =>
{
var result = new W3dAnimation();
ParseChunks(reader, context.CurrentEndPosition, chunkType =>
{
switch (chunkType)
{
case W3dChunkType.W3D_CHUNK_ANIMATION_HEADER:
result.Header = W3dAnimationHeader.Parse(reader, context);
break;
case W3dChunkType.W3D_CHUNK_ANIMATION_CHANNEL:
result.Channels.Add(W3dAnimationChannel.Parse(reader, context));
break;
case W3dChunkType.W3D_CHUNK_BIT_CHANNEL:
result.Channels.Add(W3dBitChannel.Parse(reader, context));
break;
default:
throw CreateUnknownChunkException(chunkType);
}
});
return result;
}));
}
internal static W3dAnimationChannel Parse(BinaryReader reader, W3dParseContext context)
{
return(ParseChunk(reader, context, header =>
{
var startPosition = reader.BaseStream.Position;
var result = new W3dAnimationChannel
{
FirstFrame = reader.ReadUInt16(),
LastFrame = reader.ReadUInt16(),
VectorLength = reader.ReadUInt16(),
ChannelType = reader.ReadUInt16AsEnum <W3dAnimationChannelType>(),
Pivot = reader.ReadUInt16(),
Unknown = reader.ReadUInt16()
};
ValidateChannelDataSize(result.ChannelType, result.VectorLength);
var numElements = result.LastFrame - result.FirstFrame + 1;
var data = new W3dAnimationChannelDatum[numElements];
for (var i = 0; i < numElements; i++)
{
data[i] = W3dAnimationChannelDatum.Parse(reader, result.ChannelType);
}
result.Data = data;
result.NumPadBytes = (uint)(context.CurrentEndPosition - reader.BaseStream.Position);
reader.BaseStream.Seek((int)result.NumPadBytes, SeekOrigin.Current);
return result;
}));
}
internal static W3dMotionChannel Parse(BinaryReader reader, W3dParseContext context)
{
return(ParseChunk(reader, context, header =>
{
var zero = reader.ReadByte();
if (zero != 0)
{
throw new InvalidDataException();
}
var result = new W3dMotionChannel
{
DeltaType = reader.ReadByteAsEnum <W3dMotionChannelDeltaType>(),
VectorLength = reader.ReadByte(),
ChannelType = reader.ReadByteAsEnum <W3dAnimationChannelType>(),
NumTimeCodes = reader.ReadUInt16(),
Pivot = reader.ReadUInt16()
};
W3dAnimationChannel.ValidateChannelDataSize(result.ChannelType, result.VectorLength);
switch (result.DeltaType)
{
case W3dMotionChannelDeltaType.TimeCoded:
result.Data = W3dMotionChannelTimeCodedData.Parse(reader, result.NumTimeCodes, result.ChannelType);
break;
case W3dMotionChannelDeltaType.Delta4:
result.Data = W3dMotionChannelAdaptiveDeltaData.Parse(reader, result.NumTimeCodes, result.ChannelType, result.VectorLength, W3dAdaptiveDeltaBitCount.FourBits);
break;
case W3dMotionChannelDeltaType.Delta8:
result.Data = W3dMotionChannelAdaptiveDeltaData.Parse(reader, result.NumTimeCodes, result.ChannelType, result.VectorLength, W3dAdaptiveDeltaBitCount.EightBits);
break;
default:
throw new InvalidDataException();
}
return result;
}));
}