public MdlFile(IResourceProvider loader, string filename)
{
_loader = loader;
_baseFilename = filename.Substring(0, filename.Length - ".mdl".Length);
using (var stream = loader.OpenFile(filename))
{
_header = ReadLumpWrapper <Header> .ReadSingleFromStream(stream);
_materials = new StudioTexture[_header.NumTextures];
_materialNames = new string[_header.NumTextures];
stream.Seek(_header.TextureIndex, SeekOrigin.Begin);
var index = 0;
ReadLumpWrapper <StudioTexture> .ReadLumpFromStream(stream, _header.NumTextures, tex =>
{
_materials[index] = tex;
stream.Seek(tex.NameIndex, SeekOrigin.Current);
_materialNames[index] = ReadNullTerminatedString(stream) + ".vmt";
++index;
});
}
}
private Color[] ReadVertexSamples <TVertex>(Stream stream, int lodLevel, int meshCount)
where TVertex : struct, IVertexData
{
var indexMap = GetVertIndexMap(lodLevel);
var verts = GetVertices(lodLevel);
var meshHeaders = new List <VhvMeshHeader>();
ReadLumpWrapper <VhvMeshHeader> .ReadLumpFromStream(stream, meshCount, meshHeaders);
var sampleList = new List <TVertex>();
var output = new Color[verts.Length];
var meshIndex = 0;
foreach (var meshHeader in meshHeaders)
{
if (meshHeader.Lod != lodLevel)
{
continue;
}
if (meshHeader.VertCount == 0)
{
continue;
}
if (meshIndex >= indexMap.Length)
{
break;
}
sampleList.Clear();
stream.Seek(meshHeader.VertOffset, SeekOrigin.Begin);
ReadLumpWrapper <TVertex> .ReadLumpFromStream(stream, meshHeader.VertCount, sampleList);
var map = indexMap[meshIndex];
for (var i = 0; i < sampleList.Count; ++i)
{
output[map[i]] = sampleList[i].GetVertexColor();
}
meshIndex += 1;
}
return(output);
}
private int[][] GetTriangles(int lodLevel)
{
if (_triangles[lodLevel] != null)
{
return(_triangles[lodLevel]);
}
var filePath = _baseFilename + ".dx90.vtx";
var outIndices = new List <List <int> >();
var outIndexMap = new List <int[]>();
using (var stream = _loader.OpenFile(filePath))
using (var reader = new BinaryReader(stream))
{
var version = reader.ReadInt32();
Debug.Assert(version == 7);
var vertCacheSize = reader.ReadInt32();
var maxBonesPerStrip = reader.ReadUInt16();
var maxBonesPerTri = reader.ReadUInt16();
var maxBonesPerVert = reader.ReadInt32();
var checksum = reader.ReadInt32();
var numLods = reader.ReadInt32();
var matReplacementListOffset = reader.ReadInt32();
var numBodyParts = reader.ReadInt32();
var bodyPartOffset = reader.ReadInt32();
var lodIndex = 0;
//var materialNameBuilder = new StringBuilder();
//reader.BaseStream.Seek(matReplacementListOffset, SeekOrigin.Begin);
//ReadLumpWrapper<MaterialReplacementListHeader>.ReadLumpFromStream(reader.BaseStream, numLods, materialList =>
//{
// if (lodIndex++ != lodLevel) return;
// reader.BaseStream.Seek(materialList.ReplacementOffset, SeekOrigin.Current);
// ReadLumpWrapper<MaterialReplacementHeader>.ReadLumpFromStream(reader.BaseStream, numLods, material =>
// {
// if (material.ReplacementMaterialNameOffset == 0 || material.ReplacementMaterialNameOffset == 0xffff) return;
// materialNameBuilder.Remove(0, materialNameBuilder.Length);
// char ch;
// reader.BaseStream.Seek(material.ReplacementMaterialNameOffset, SeekOrigin.Current);
// while ((ch = reader.ReadChar()) != '\0') materialNameBuilder.Append(ch);
// var materialName = materialNameBuilder.ToString();
// Debug.Log(materialName);
// });
//});
var verts = new List <OptimizedVertex>();
var indexMap = new List <int>();
var indices = new List <ushort>();
var meshIndex = 0;
reader.BaseStream.Seek(bodyPartOffset, SeekOrigin.Begin);
ReadLumpWrapper <BodyPartHeader> .ReadLumpFromStream(reader.BaseStream, numBodyParts, bodyPart =>
{
reader.BaseStream.Seek(bodyPart.ModelOffset, SeekOrigin.Current);
ReadLumpWrapper <ModelHeader> .ReadLumpFromStream(reader.BaseStream, bodyPart.NumModels, model =>
{
reader.BaseStream.Seek(model.LodOffset, SeekOrigin.Current);
lodIndex = 0;
ReadLumpWrapper <ModelLodHeader> .ReadLumpFromStream(reader.BaseStream, model.NumLods, lod =>
{
if (lodIndex++ != lodLevel)
{
return;
}
var skip = 0;
reader.BaseStream.Seek(lod.MeshOffset, SeekOrigin.Current);
ReadLumpWrapper <MeshHeader> .ReadLumpFromStream(reader.BaseStream, lod.NumMeshes, mesh =>
{
List <int> meshIndices;
if (outIndices.Count <= meshIndex)
{
outIndices.Add(meshIndices = new List <int>());
}
else
{
meshIndices = outIndices[meshIndex];
}
Debug.Assert(mesh.NumStripGroups == 1);
indexMap.Clear();
reader.BaseStream.Seek(mesh.StripGroupHeaderOffset, SeekOrigin.Current);
ReadLumpWrapper <StripGroupHeader> .ReadLumpFromStream(reader.BaseStream, mesh.NumStripGroups, stripGroup =>
{
verts.Clear();
indices.Clear();
var start = reader.BaseStream.Position;
reader.BaseStream.Seek(start + stripGroup.VertOffset, SeekOrigin.Begin);
ReadLumpWrapper <OptimizedVertex> .ReadLumpFromStream(reader.BaseStream,
stripGroup.NumVerts, verts);
reader.BaseStream.Seek(start + stripGroup.IndexOffset, SeekOrigin.Begin);
ReadLumpWrapper <ushort> .ReadLumpFromStream(reader.BaseStream,
stripGroup.NumIndices, indices);
for (var i = 0; i < verts.Count; ++i)
{
indexMap.Add(verts[i].OrigMeshVertId + skip);
}
reader.BaseStream.Seek(start + stripGroup.StripOffset, SeekOrigin.Begin);
ReadLumpWrapper <StripHeader> .ReadLumpFromStream(reader.BaseStream, stripGroup.NumStrips, strip =>
{
Debug.Assert(strip.Flags == StripHeaderFlags.IsTriList);
for (var i = 0; i < strip.NumIndices; ++i)
{
var index = indices[strip.IndexOffset + i];
var vert = verts[index];
meshIndices.Add(strip.VertOffset + vert.OrigMeshVertId + skip);
}
});
// Why?
skip += verts.Max(x => x.OrigMeshVertId) + 1;
});
outIndexMap.Add(indexMap.ToArray());
meshIndex += 1;
});
});
});
});
}
_vertIndexMap[lodLevel] = outIndexMap.ToArray();
return(_triangles[lodLevel] = outIndices.Select(x => x.ToArray()).ToArray());
}
private StudioVertex[] GetVertices(int lod)
{
if (_vertices != null)
{
return(_vertices[lod]);
}
var filePath = _baseFilename + ".vvd";
using (var stream = _loader.OpenFile(filePath))
using (var reader = new BinaryReader(stream))
{
var id = reader.ReadInt32();
var version = reader.ReadInt32();
Debug.Assert(id == 0x56534449);
Debug.Assert(version == 4);
reader.ReadInt32();
var numLods = reader.ReadInt32();
var numLodVerts = new int[8];
for (var i = 0; i < numLodVerts.Length; ++i)
{
numLodVerts[i] = reader.ReadInt32();
}
var numFixups = reader.ReadInt32();
var fixupTableStart = reader.ReadInt32();
var vertexDataStart = reader.ReadInt32();
var tangentDataStart = reader.ReadInt32();
var fixupList = new List <VertexFixup>();
var vertList = new List <StudioVertex>();
if (numFixups > 0)
{
reader.BaseStream.Seek(fixupTableStart, SeekOrigin.Begin);
ReadLumpWrapper <VertexFixup> .ReadLumpFromStream(reader.BaseStream, numFixups, fixupList);
}
reader.BaseStream.Seek(vertexDataStart, SeekOrigin.Begin);
ReadLumpWrapper <StudioVertex> .ReadLumpFromStream(reader.BaseStream, (tangentDataStart - vertexDataStart) / Marshal.SizeOf(typeof(StudioVertex)), vertList);
_vertices = new StudioVertex[numLods][];
var lodVerts = new List <StudioVertex>();
for (var i = 0; i < numLods; ++i)
{
if (numFixups == 0)
{
_vertices[i] = vertList.Take(numLodVerts[i]).ToArray();
continue;
}
lodVerts.Clear();
foreach (var vertexFixup in fixupList)
{
if (vertexFixup.Lod >= i)
{
lodVerts.AddRange(vertList.Skip(vertexFixup.SourceVertexId).Take(vertexFixup.NumVertices));
}
}
_vertices[i] = lodVerts.ToArray();
}
}
return(_vertices[lod]);
}