private NTROStruct ReadStructure(ResourceIntrospectionManifest.ResourceDiskStruct refStruct, long startingOffset)
{
var structEntry = new NTROStruct(refStruct.Name);
foreach (var field in refStruct.FieldIntrospection)
{
Reader.BaseStream.Position = startingOffset + field.OnDiskOffset;
ReadFieldIntrospection(field, ref structEntry);
}
// Some structs are padded, so all the field sizes do not add up to the size on disk
Reader.BaseStream.Position = startingOffset + refStruct.DiskSize;
if (refStruct.BaseStructId != 0)
{
var previousOffset = Reader.BaseStream.Position;
var newStruct = Resource.IntrospectionManifest.ReferencedStructs.First(x => x.Id == refStruct.BaseStructId);
// Valve doesn't print this struct's type, so we can't just call ReadStructure *sigh*
foreach (var field in newStruct.FieldIntrospection)
{
Reader.BaseStream.Position = startingOffset + field.OnDiskOffset;
ReadFieldIntrospection(field, ref structEntry);
}
Reader.BaseStream.Position = previousOffset;
}
return(structEntry);
}
// Construct the Armature object from mesh skeleton KV data.
public void ConstructFromNTRO(NTROStruct skeletonData, Dictionary <int, int> remapTable)
{
var boneNames = skeletonData.Get <NTROArray>("m_boneName").ToArray <string>();
var boneParents = skeletonData.Get <NTROArray>("m_nParent").ToArray <short>();
var bonePositions = skeletonData.Get <NTROArray>("m_bonePosParent").ToArray <Vector3>();
var boneRotations = skeletonData.Get <NTROArray>("m_boneRotParent").ToArray <Vector4>();
// Initialise bone array
Bones = new Bone[boneNames.Length];
//Add all bones to the list
for (var i = 0; i < boneNames.Length; i++)
{
var name = boneNames[i];
var position = new OpenTK.Vector3(bonePositions[i].X, bonePositions[i].Y, bonePositions[i].Z);
var rotation = new Quaternion(boneRotations[i].X, boneRotations[i].Y, boneRotations[i].Z, boneRotations[i].W);
// Create bone
var index = remapTable.ContainsKey(i) ? remapTable[i] : -1;
var bone = new Bone(name, index, position, rotation);
if (boneParents[i] != -1)
{
bone.SetParent(Bones[boneParents[i]]);
Bones[boneParents[i]].AddChild(bone);
}
Bones[i] = bone;
}
FindRoots();
}
public override void Read(BinaryReader reader, Resource resource)
{
Reader = reader;
Resource = resource;
foreach (var refStruct in resource.IntrospectionManifest.ReferencedStructs)
{
Output = ReadStructure(refStruct, Offset);
break;
}
}
/// <summary>
/// Build animation from resource
/// </summary>
/// <param name="resource"></param>
/// <param name="decodeKey"></param>
public Animation(Resource resource, NTROStruct decodeKey)
{
Name = string.Empty;
Fps = 0;
Frames = new Frame[0];
var animationData = (NTRO)resource.Blocks[BlockType.DATA];
var animArray = (NTROArray)animationData.Output["m_animArray"];
if (animArray.Count == 0)
{
Console.WriteLine("Empty animation file found.");
return;
}
var decoderArray = MakeDecoderArray((NTROArray)animationData.Output["m_decoderArray"]);
var segmentArray = (NTROArray)animationData.Output["m_segmentArray"];
// Get the first animation description
ConstructFromDesc(animArray.Get <NTROStruct>(0), decodeKey, decoderArray, segmentArray);
}
/// <summary>
/// Construct an animation class from the animation description
/// </summary>
/// <param name="animDesc"></param>
/// <param name="decodeKey"></param>
/// <param name="decoderArray"></param>
/// <param name="segmentArray"></param>
private void ConstructFromDesc(NTROStruct animDesc, NTROStruct decodeKey, AnimDecoderType[] decoderArray, NTROArray segmentArray)
{
// Get animation properties
Name = animDesc.Get <string>("m_name");
Fps = animDesc.Get <float>("fps");
// Only consider first frame block for now
var pData = animDesc.Get <NTROArray>("m_pData").Get <NTROStruct>(0);
var frameBlockArray = pData.Get <NTROArray>("m_frameblockArray").ToArray <NTROStruct>();
FrameCount = pData.Get <int>("m_nFrames");
Frames = new Frame[FrameCount];
// Figure out each frame
for (var frame = 0; frame < FrameCount; frame++)
{
// Create new frame object
Frames[frame] = new Frame();
// Read all frame blocks
foreach (var frameBlock in frameBlockArray)
{
var startFrame = frameBlock.Get <int>("m_nStartFrame");
var endFrame = frameBlock.Get <int>("m_nEndFrame");
// Only consider blocks that actual contain info for this frame
if (frame >= startFrame && frame <= endFrame)
{
var segmentIndexArray = frameBlock.Get <NTROArray>("m_segmentIndexArray").ToArray <int>();
foreach (var segmentIndex in segmentIndexArray)
{
var segment = segmentArray.Get <NTROStruct>(segmentIndex);
ReadSegment(frame - startFrame, segment, decodeKey, decoderArray, ref Frames[frame]);
}
}
}
}
}
/// <summary>
/// Read segment
/// </summary>
/// <param name="frame"></param>
/// <param name="segment"></param>
/// <param name="decodeKey"></param>
/// <param name="decoderArray"></param>
/// <param name="outFrame"></param>
private void ReadSegment(int frame, NTROStruct segment, NTROStruct decodeKey, AnimDecoderType[] decoderArray, ref Frame outFrame)
{
// Clamp the frame number to be between 0 and the maximum frame
frame = frame < 0 ? 0 : frame;
frame = frame >= FrameCount ? FrameCount - 1 : frame;
var localChannel = segment.Get <int>("m_nLocalChannel");
var dataChannel = decodeKey.Get <NTROArray>("m_dataChannelArray").Get <NTROStruct>(localChannel);
var boneNames = dataChannel.Get <NTROArray>("m_szElementNameArray").ToArray <string>();
var channelAttribute = dataChannel.Get <string>("m_szVariableName");
// Read container
var container = segment.Get <NTROArray>("m_container").ToArray <byte>();
using (var containerReader = new BinaryReader(new MemoryStream(container)))
{
var elementIndexArray = dataChannel.Get <NTROArray>("m_nElementIndexArray").ToArray <int>();
var elementBones = new int[decodeKey.Get <int>("m_nChannelElements")];
for (var i = 0; i < elementIndexArray.Length; i++)
{
elementBones[elementIndexArray[i]] = i;
}
// Read header
var decoder = decoderArray[containerReader.ReadInt16()];
var cardinality = containerReader.ReadInt16();
var numBones = containerReader.ReadInt16();
var totalLength = containerReader.ReadInt16();
// Read bone list
var elements = new List <int>();
for (var i = 0; i < numBones; i++)
{
elements.Add(containerReader.ReadInt16());
}
// Skip data to find the data for the current frame.
// Structure is just | Bone 0 - Frame 0 | Bone 1 - Frame 0 | Bone 0 - Frame 1 | Bone 1 - Frame 1|
if (containerReader.BaseStream.Position + (decoder.Size() * frame * numBones) < containerReader.BaseStream.Length)
{
containerReader.BaseStream.Position += decoder.Size() * frame * numBones;
}
// Read animation data for all bones
for (var element = 0; element < numBones; element++)
{
// Get the bone we are reading for
var bone = elementBones[elements[element]];
// Look at the decoder to see what to read
switch (decoder)
{
case AnimDecoderType.CCompressedStaticFullVector3:
case AnimDecoderType.CCompressedFullVector3:
case AnimDecoderType.CCompressedDeltaVector3:
outFrame.SetAttribute(boneNames[bone], channelAttribute, new Vector3(
containerReader.ReadSingle(),
containerReader.ReadSingle(),
containerReader.ReadSingle()));
break;
case AnimDecoderType.CCompressedAnimVector3:
case AnimDecoderType.CCompressedStaticVector3:
outFrame.SetAttribute(boneNames[bone], channelAttribute, new Vector3(
ReadHalfFloat(containerReader),
ReadHalfFloat(containerReader),
ReadHalfFloat(containerReader)));
break;
case AnimDecoderType.CCompressedAnimQuaternion:
outFrame.SetAttribute(boneNames[bone], channelAttribute, ReadQuaternion(containerReader));
break;
#if DEBUG
default:
if (channelAttribute != "data")
{
Console.WriteLine($"Unhandled animation bone decoder type '{decoder}'");
}
break;
#endif
}
}
}
}
private void ReadFieldIntrospection(ResourceIntrospectionManifest.ResourceDiskStruct.Field field, ref NTROStruct structEntry)
{
var count = (uint)field.Count;
var pointer = false; // TODO: get rid of this
if (count == 0)
{
count = 1;
}
long prevOffset = 0;
if (field.Indirections.Count > 0)
{
// TODO
if (field.Indirections.Count > 1)
{
throw new NotImplementedException("More than one indirection, not yet handled.");
}
// TODO
if (field.Count > 0)
{
throw new NotImplementedException("Indirection.Count > 0 && field.Count > 0");
}
var indirection = field.Indirections[0]; // TODO: depth needs fixing?
var offset = Reader.ReadUInt32();
if (indirection == 0x03)
{
pointer = true;
if (offset == 0)
{
structEntry.Add(field.FieldName, new NTROValue <byte?>(field.Type, null, true)); //being byte shouldn't matter
return;
}
prevOffset = Reader.BaseStream.Position;
Reader.BaseStream.Position += offset - 4;
}
else if (indirection == 0x04)
{
count = Reader.ReadUInt32();
prevOffset = Reader.BaseStream.Position;
if (count > 0)
{
Reader.BaseStream.Position += offset - 8;
}
}
else
{
throw new NotImplementedException(string.Format("Unknown indirection. ({0})", indirection));
}
}
//if (pointer)
//{
// Writer.Write("{0} {1}* = (ptr) ->", ValveDataType(field.Type), field.FieldName);
//}
if (field.Count > 0 || field.Indirections.Count > 0)
{
var ntroValues = new NTROArray(field.Type, (int)count, pointer, field.Indirections.Count > 0);
for (var i = 0; i < count; i++)
{
ntroValues[i] = ReadField(field, pointer);
}
structEntry.Add(field.FieldName, ntroValues);
}
else
{
for (var i = 0; i < count; i++)
{
structEntry.Add(field.FieldName, ReadField(field, pointer));
}
}
if (prevOffset > 0)
{
Reader.BaseStream.Position = prevOffset;
}
}
private void HandleDecodeKey(NTROStruct decodeKey)
{
// TODO?
}