public static int CalculateStructSize(FlverVertexStructLayout vsl)
{
var size = 0;
foreach (var member in vsl.Members)
{
switch (member.ValueType)
{
case FlverVertexStructMemberValueType.BoneIndicesStruct:
size += 4;
break;
case FlverVertexStructMemberValueType.BoneWeightsStruct:
size += sizeof(ushort) * 4;
break;
case FlverVertexStructMemberValueType.UV:
size += sizeof(ushort) * 2;
break;
case FlverVertexStructMemberValueType.UVPair:
size += (sizeof(ushort) * 2) * 2;
break;
case FlverVertexStructMemberValueType.Vector3:
size += sizeof(float) * 3;
break;
case FlverVertexStructMemberValueType.PackedVector4:
size += 4;
break;
}
}
return(size);
}
public static FlverVertexStructLayout Read(DSBinaryReader bin)
{
var val = new FlverVertexStructLayout();
int memberCount = bin.ReadInt32();
val.Unknown1 = bin.ReadInt32();
val.Unknown2 = bin.ReadInt32();
int startOffset = bin.ReadInt32();
bin.StepIn(startOffset);
{
val.Members = new List <FlverVertexStructMember>();
for (int i = 0; i < memberCount; i++)
{
val.Members.Add(FlverVertexStructMember.Read(bin));
}
}
return(val);
}
public int GetVertexSize()
{
return(FlverVertexStructLayout.CalculateStructSize(this));
}
public FlverVertexStructLayout BuildVertexStructLayout()
{
var structLayout = new FlverVertexStructLayout();
var currentOffset = 0;
void _newMember(FlverVertexStructMemberSemantic s, FlverVertexStructMemberValueType v)
{
var newMember = new FlverVertexStructMember();
newMember.Semantic = s;
newMember.ValueType = v;
newMember.StructOffset = currentOffset;
switch (v)
{
case FlverVertexStructMemberValueType.BoneIndicesStruct:
currentOffset += 4;
break;
case FlverVertexStructMemberValueType.BoneWeightsStruct:
currentOffset += sizeof(ushort) * 4;
break;
case FlverVertexStructMemberValueType.UV:
currentOffset += sizeof(ushort) * 2;
break;
case FlverVertexStructMemberValueType.UVPair:
currentOffset += (sizeof(ushort) * 2) * 2;
break;
case FlverVertexStructMemberValueType.Vector3:
currentOffset += sizeof(float) * 3;
break;
case FlverVertexStructMemberValueType.PackedVector4:
currentOffset += 4;
break;
}
structLayout.Members.Add(newMember);
}
var semanticsQueue = new Queue <FlverVertexStructMemberSemantic>(IncludedSemantics);
while (semanticsQueue.Count > 0)
{
var semantic = semanticsQueue.Dequeue();
switch (semantic)
{
case FlverVertexStructMemberSemantic.Position:
_newMember(FlverVertexStructMemberSemantic.Position,
FlverVertexStructMemberValueType.Vector3);
break;
case FlverVertexStructMemberSemantic.BoneIndices:
_newMember(FlverVertexStructMemberSemantic.BoneIndices,
FlverVertexStructMemberValueType.BoneIndicesStruct);
break;
case FlverVertexStructMemberSemantic.BoneWeights:
_newMember(FlverVertexStructMemberSemantic.BoneWeights,
FlverVertexStructMemberValueType.BoneWeightsStruct);
break;
case FlverVertexStructMemberSemantic.Normal:
_newMember(FlverVertexStructMemberSemantic.Normal,
FlverVertexStructMemberValueType.PackedVector4);
break;
case FlverVertexStructMemberSemantic.BiTangent:
_newMember(FlverVertexStructMemberSemantic.BiTangent,
FlverVertexStructMemberValueType.PackedVector4);
break;
case FlverVertexStructMemberSemantic.VertexColor:
_newMember(FlverVertexStructMemberSemantic.VertexColor,
FlverVertexStructMemberValueType.PackedVector4);
break;
case FlverVertexStructMemberSemantic.UV:
//If followed by another UV:
if (semanticsQueue.Count > 0 && semanticsQueue.Peek() == FlverVertexStructMemberSemantic.UV)
{
_newMember(FlverVertexStructMemberSemantic.UV,
FlverVertexStructMemberValueType.UVPair);
//Consume the next UV along with the current one:
semanticsQueue.Dequeue();
}
else
{
_newMember(FlverVertexStructMemberSemantic.UV,
FlverVertexStructMemberValueType.UV);
}
break;
case FlverVertexStructMemberSemantic.UnknownVector4A:
_newMember(FlverVertexStructMemberSemantic.UnknownVector4A,
FlverVertexStructMemberValueType.PackedVector4);
break;
}
}
return(structLayout);
}