private int ReadLumpValues <T>(LumpType type, int srcOffset, T[] dst, int dstOffset, int count)
where T : struct
{
var info = GetLumpInfo(type);
var tSize = Marshal.SizeOf <T>();
var length = info.Length / tSize;
if (srcOffset > length)
{
srcOffset = length;
}
if (srcOffset + count > length)
{
count = length - srcOffset;
}
if (count <= 0)
{
return(0);
}
using (var stream = GetLumpStream(type))
{
stream.Seek(tSize * srcOffset, SeekOrigin.Begin);
LumpReader <T> .ReadLumpFromStream(stream, count, dst, dstOffset);
}
return(count);
}
public ValveVertexFile(Stream stream)
{
using (var reader = new BinaryReader(stream))
{
var id = reader.ReadInt32();
var version = reader.ReadInt32();
Debug.Assert(id == 0x56534449);
Debug.Assert(version == 4);
reader.ReadInt32();
NumLods = reader.ReadInt32();
_numVerts = new int[NumLods];
for (var i = 0; i < 8; ++i)
{
var count = reader.ReadInt32();
if (i < NumLods)
{
_numVerts[i] = count;
}
}
var numFixups = reader.ReadInt32();
var fixupTableStart = reader.ReadInt32();
var vertexDataStart = reader.ReadInt32();
var tangentDataStart = reader.ReadInt32();
if (numFixups > 0)
{
reader.BaseStream.Seek(fixupTableStart, SeekOrigin.Begin);
_fixups = LumpReader <VertexFixup> .ReadLumpFromStream(reader.BaseStream, numFixups);
}
HasTangents = tangentDataStart != 0;
var vertLength = (int)(HasTangents ? tangentDataStart - vertexDataStart : stream.Length - vertexDataStart);
reader.BaseStream.Seek(vertexDataStart, SeekOrigin.Begin);
_vertices = LumpReader <StudioVertex> .ReadLumpFromStream(reader.BaseStream, vertLength / Marshal.SizeOf <StudioVertex>());
if (HasTangents)
{
var tangLength = (int)(stream.Length - tangentDataStart);
reader.BaseStream.Seek(tangentDataStart, SeekOrigin.Begin);
_tangents = LumpReader <Vector4> .ReadLumpFromStream(reader.BaseStream, tangLength / Marshal.SizeOf <Vector4>());
}
}
}
private void EnsureLoaded()
{
lock (this)
{
if (Loaded)
{
return;
}
using (var reader = new BinaryReader(_bspFile.GetLumpStream(LumpType)))
{
_numClusters = reader.ReadInt32();
_vpsList = new HashSet <int> [_numClusters];
_offsets = LumpReader <ByteOffset> .ReadLumpFromStream(reader.BaseStream, _numClusters);
}
}
}
public ValveVertexLightingFile(Stream stream)
{
using (var reader = new BinaryReader(stream))
{
var version = reader.ReadInt32();
Debug.Assert(version == 2);
var checksum = reader.ReadInt32();
var vertFlags = reader.ReadUInt32();
var vertSize = reader.ReadUInt32();
var vertCount = reader.ReadUInt32();
var meshCount = reader.ReadInt32();
reader.ReadInt64(); // Unused
reader.ReadInt64(); // Unused
var meshHeaders = new List <VhvMeshHeader>();
LumpReader <VhvMeshHeader> .ReadLumpFromStream(stream, meshCount, meshHeaders);
_samples = new VertexData4[meshHeaders.Max(x => x.Lod) + 1][][];
for (var i = 0; i < _samples.Length; ++i)
{
_samples[i] = new VertexData4[meshHeaders.Count(x => x.Lod == i)][];
}
foreach (var meshHeader in meshHeaders)
{
stream.Seek(meshHeader.VertOffset, SeekOrigin.Begin);
var samples = _samples[meshHeader.Lod];
var meshIndex = Array.IndexOf(samples, null);
if (vertFlags == 2)
{
samples[meshIndex] = LumpReader <VertexData2> .ReadLumpFromStream(stream, meshHeader.VertCount, x => x.GetVertexColor());
}
else
{
samples[meshIndex] = LumpReader <VertexData4> .ReadLumpFromStream(stream, meshHeader.VertCount, x => x.GetVertexColor());
}
}
}
}
private void EnsureLoaded()
{
lock (this)
{
if (_items != null)
{
return;
}
_items = new Dictionary <string, Item>();
using (var reader = new BinaryReader(_bspFile.GetLumpStream(LumpType)))
{
var count = reader.ReadInt32();
LumpReader <Item> .ReadLumpFromStream(reader.BaseStream, count, item => _items.Add(GetIdString(item.Id), item));
}
}
}
public ValveTextureFile(Stream stream, bool onlyHeader = false)
{
Header = LumpReader <TextureHeader> .ReadSingleFromStream(stream);
var readCount = Marshal.SizeOf <TextureHeader>();
ZSliceCount = 1;
if (Header.MajorVersion > 7 || Header.MajorVersion == 7 && Header.MinorVersion >= 2)
{
ZSliceCount = stream.ReadByte() | (stream.ReadByte() << 8);
readCount += 2;
}
MipmapCount = Header.MipMapCount;
FrameCount = Header.Frames;
FaceCount = (Header.Flags & TextureFlags.ENVMAP) != 0 ? 6 : 1;
if (onlyHeader)
{
return;
}
var thumbSize = GetImageDataSize(Header.LowResWidth, Header.LowResHeight, 1, 1, Header.LowResFormat);
VtfResource[] resources = null;
var buffer = new byte[8];
if (Header.MajorVersion > 7 || Header.MajorVersion == 7 && Header.MinorVersion >= 3)
{
Skip(stream, 3);
readCount += 3;
stream.Read(buffer, 0, 4);
readCount += 4;
var resourceCount = BitConverter.ToInt32(buffer, 0);
// Probably padding?
stream.Read(buffer, 0, 8);
readCount += 8;
resources = LumpReader <VtfResource> .ReadLumpFromStream(stream, resourceCount);
readCount += Marshal.SizeOf <VtfResource>() * resourceCount;
}
if (resources == null || resources.Length == 0)
{
resources = new VtfResource[2];
resources[0] = new VtfResource(VtfResourceType.LowResImage, Header.HeaderSize);
resources[1] = new VtfResource(VtfResourceType.HiResImage, Header.HeaderSize + (uint)thumbSize);
}
Skip(stream, Header.HeaderSize - readCount);
readCount = (int)Header.HeaderSize;
switch (Header.HiResFormat)
{
case TextureFormat.DXT1:
case TextureFormat.DXT3:
case TextureFormat.DXT5:
case TextureFormat.I8:
case TextureFormat.IA88:
case TextureFormat.BGR888:
case TextureFormat.RGB888:
case TextureFormat.RGB888_BLUESCREEN:
case TextureFormat.ABGR8888:
case TextureFormat.BGRA8888:
case TextureFormat.RGBA8888:
case TextureFormat.RGBA16161616F:
break;
default:
throw new NotImplementedException($"VTF format: {Header.HiResFormat}");
}
_imageData = new ImageData[MipmapCount * FrameCount * FaceCount * ZSliceCount];
var offset = 0;
for (var mipmap = MipmapCount - 1; mipmap >= 0; --mipmap)
{
var length = GetImageDataSize(Header.Width >> mipmap, Header.Height >> mipmap, 1, 1, Header.HiResFormat);
for (var frame = 0; frame < FrameCount; ++frame)
{
for (var face = 0; face < FaceCount; ++face)
{
for (var zslice = 0; zslice < ZSliceCount; ++zslice)
{
var index = GetImageDataIndex(mipmap, frame, face, zslice);
_imageData[index] = new ImageData(offset, length);
offset += length;
}
}
}
}
var hiResEntry = resources.First(x => x.Type == VtfResourceType.HiResImage);
Skip(stream, hiResEntry.Data - readCount);
_hiResPixelData = new byte[offset];
stream.Read(_hiResPixelData, 0, offset);
}
public ValveVertexLightingFile(Stream stream)
{
using (var reader = new BinaryReader(stream))
{
var version = (int)reader.ReadByte();
var baseOffset = 0;
if (version == 0)
{
// First 3 bytes are missing :(
version = 2;
baseOffset = -3;
}
else
{
version |= reader.ReadByte() << 8;
version |= reader.ReadUInt16() << 16;
}
if (version != 2)
{
throw new NotSupportedException($"Vertex lighting file version {version:x} is not supported.");
}
var checksum = reader.ReadInt32();
var vertFlags = reader.ReadUInt32();
var vertSize = reader.ReadUInt32();
var vertCount = reader.ReadUInt32();
var meshCount = reader.ReadInt32();
var unused0 = reader.ReadInt64(); // Unused
var unused1 = reader.ReadInt64(); // Unused
var meshHeaders = new List <VhvMeshHeader>();
LumpReader <VhvMeshHeader> .ReadLumpFromStream(stream, meshCount, meshHeaders);
_samples = new VertexData4[meshHeaders.Max(x => x.Lod) + 1][][];
for (var i = 0; i < _samples.Length; ++i)
{
_samples[i] = new VertexData4[meshHeaders.Count(x => x.Lod == i)][];
}
foreach (var meshHeader in meshHeaders)
{
stream.Seek(meshHeader.VertOffset + baseOffset, SeekOrigin.Begin);
var samples = _samples[meshHeader.Lod];
var meshIndex = Array.IndexOf(samples, null);
if (vertFlags == 2)
{
samples[meshIndex] = LumpReader <VertexData2> .ReadLumpFromStream(stream, meshHeader.VertCount, x => x.GetVertexColor());
}
else
{
samples[meshIndex] = LumpReader <VertexData4> .ReadLumpFromStream(stream, meshHeader.VertCount, x => x.GetVertexColor());
}
}
}
}
private int ReadLumpValues <T>(LumpType type, int srcOffset, T[] dst, int dstOffset, int count)
where T : struct
{
var info = GetLumpInfo(type);
// 0 = no compression
if (info.UncompressedSize == 0)
{
var tSize = Marshal.SizeOf <T>();
var length = info.Length / tSize;
if (srcOffset > length)
{
srcOffset = length;
}
if (srcOffset + count > length)
{
count = length - srcOffset;
}
if (count <= 0)
{
return(0);
}
using (var stream = GetLumpStream(type))
{
stream.Seek(tSize * srcOffset, SeekOrigin.Begin);
LumpReader <T> .ReadLumpFromStream(stream, count, dst, dstOffset);
}
}
else
{
// LZMA compressed lump
if (type == LumpType.GAME_LUMP)
{
// game lumps are compressed individually
// https://developer.valvesoftware.com/wiki/Source_BSP_File_Format#Lump_compression
throw new NotImplementedException();
}
using (var stream = GetSubStream(info.Offset, LzmaHeader.Size))
{
var lzmaHeader = LzmaHeader.Read(stream);
using (var compressedStream = GetSubStream(info.Offset + LzmaHeader.Size, lzmaHeader.LzmaSize))
{
using (var uncompressedStream = new MemoryStream(info.UncompressedSize))
{
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(lzmaHeader.Properties);
decoder.Code(compressedStream, uncompressedStream, lzmaHeader.LzmaSize, lzmaHeader.ActualSize, null);
var tSize = Marshal.SizeOf <T>();
var length = info.UncompressedSize / tSize;
if (srcOffset > length)
{
srcOffset = length;
}
if (srcOffset + count > length)
{
count = length - srcOffset;
}
if (count <= 0)
{
return(0);
}
uncompressedStream.Seek(tSize * srcOffset, SeekOrigin.Begin);
LumpReader <T> .ReadLumpFromStream(uncompressedStream, count, dst, dstOffset);
if (type == LumpType.PLANES)
{
return(count);
}
}
}
}
}
return(count);
}
public StudioModelFile(Stream stream)
{
_header = LumpReader <Header> .ReadSingleFromStream(stream);
if (_header.Id != 0x54534449)
{
throw new Exception("Not a MDL file.");
}
_materials = new StudioTexture[_header.NumTextures];
_materialNames = new string[_header.NumTextures];
_cachedFullMaterialPaths = new string[_header.NumTextures];
stream.Seek(_header.TextureIndex, SeekOrigin.Begin);
LumpReader <StudioTexture> .ReadLumpFromStream(stream, _header.NumTextures, (index, tex) =>
{
_materials[index] = tex;
stream.Seek(tex.NameIndex, SeekOrigin.Current);
_materialNames[index] = ReadNullTerminatedString(stream).Replace('\\', '/') + ".vmt";
});
_materialPaths = new string[_header.NumCdTextures];
stream.Seek(_header.CdTextureIndex, SeekOrigin.Begin);
LumpReader <int> .ReadLumpFromStream(stream, _header.NumCdTextures, (index, cdTex) =>
{
stream.Seek(cdTex, SeekOrigin.Begin);
_materialPaths[index] = ReadNullTerminatedString(stream).Replace('\\', '/');
});
_bodyParts = new StudioBodyPart[_header.NumBodyParts];
_bodyPartNames = new string[_header.NumBodyParts];
var modelList = new List <StudioModel>();
var meshList = new List <StudioMesh>();
stream.Seek(_header.BodyPartIndex, SeekOrigin.Begin);
LumpReader <StudioBodyPart> .ReadLumpFromStream(stream, _header.NumBodyParts, (partIndex, part) =>
{
var partPos = stream.Position;
stream.Seek(partPos + part.NameIndex, SeekOrigin.Begin);
_bodyPartNames[partIndex] = ReadNullTerminatedString(stream);
stream.Seek(partPos + part.ModelIndex, SeekOrigin.Begin);
// Now indexes into array of models
part.ModelIndex = modelList.Count;
LumpReader <StudioModel> .ReadLumpFromStream(stream, part.NumModels, (modelIndex, model) =>
{
var modelPos = stream.Position;
stream.Seek(modelPos + model.MeshIndex, SeekOrigin.Begin);
model.MeshIndex = meshList.Count;
LumpReader <StudioMesh> .ReadLumpFromStream(stream, model.NumMeshes, (meshIndex, mesh) =>
{
mesh.ModelIndex = modelIndex;
meshList.Add(mesh);
});
modelList.Add(model);
});
_bodyParts[partIndex] = part;
});
_models = modelList.ToArray();
_meshes = meshList.ToArray();
}
public ValveTriangleFile(Stream stream, StudioModelFile mdl, ValveVertexFile vvd)
{
var outIndices = new List <int>();
var outVertices = new List <StudioVertex>();
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 = NumLods = reader.ReadInt32();
var matReplacementListOffset = reader.ReadInt32();
var origVerts = new StudioVertex[numLods][];
for (var i = 0; i < numLods; ++i)
{
origVerts[i] = new StudioVertex[vvd.GetVertexCount(i)];
vvd.GetVertices(i, origVerts[i]);
}
var numBodyParts = reader.ReadInt32();
var bodyPartOffset = reader.ReadInt32();
var verts = new List <OptimizedVertex>();
var indices = new List <ushort>();
_bodyParts = new BodyPartHeader[numBodyParts];
var modelList = new List <ModelHeader>();
var modelLodList = new List <ModelLodHeader>();
var meshList = new List <MeshData>();
reader.BaseStream.Seek(bodyPartOffset, SeekOrigin.Begin);
LumpReader <BodyPartHeader> .ReadLumpFromStream(reader.BaseStream, numBodyParts, (bodyPartIndex, bodyPart) =>
{
reader.BaseStream.Seek(bodyPart.ModelOffset, SeekOrigin.Current);
bodyPart.ModelOffset = modelList.Count;
LumpReader <ModelHeader> .ReadLumpFromStream(reader.BaseStream, bodyPart.NumModels, (modelIndex, model) =>
{
reader.BaseStream.Seek(model.LodOffset, SeekOrigin.Current);
model.LodOffset = modelLodList.Count;
LumpReader <ModelLodHeader> .ReadLumpFromStream(reader.BaseStream, model.NumLods, (lodIndex, lod) =>
{
// TODO
if (lodIndex > 0)
{
return;
}
reader.BaseStream.Seek(lod.MeshOffset, SeekOrigin.Current);
lod.MeshOffset = meshList.Count;
var lodVerts = origVerts[lodIndex];
var firstLodIndex = outVertices.Count;
var firstLodVertex = outVertices.Count;
LumpReader <MeshHeader> .ReadLumpFromStream(reader.BaseStream, lod.NumMeshes, (meshIndex, mesh) =>
{
var meshData = new MeshData
{
LodIndexOffset = firstLodIndex,
LodVertexOffset = firstLodVertex,
IndexOffset = outIndices.Count,
VertexOffset = outVertices.Count
};
var meshInfo = mdl.GetMesh(bodyPartIndex, modelIndex, meshIndex);
var origVertOffset = meshInfo.VertexOffset;
reader.BaseStream.Seek(mesh.StripGroupHeaderOffset, SeekOrigin.Current);
LumpReader <StripGroupHeader> .ReadLumpFromStream(reader.BaseStream, mesh.NumStripGroups, stripGroup =>
{
verts.Clear();
indices.Clear();
var start = reader.BaseStream.Position;
reader.BaseStream.Seek(start + stripGroup.VertOffset, SeekOrigin.Begin);
LumpReader <OptimizedVertex> .ReadLumpFromStream(reader.BaseStream,
stripGroup.NumVerts, verts);
var meshIndexOffset = outVertices.Count - firstLodVertex;
for (var i = 0; i < verts.Count; ++i)
{
var vertIndex = origVertOffset + verts[i].OrigMeshVertId;
if (vertIndex < 0 || vertIndex >= lodVerts.Length)
{
throw new IndexOutOfRangeException();
}
outVertices.Add(lodVerts[vertIndex]);
}
reader.BaseStream.Seek(start + stripGroup.IndexOffset, SeekOrigin.Begin);
LumpReader <ushort> .ReadLumpFromStream(reader.BaseStream,
stripGroup.NumIndices, indices);
reader.BaseStream.Seek(start + stripGroup.StripOffset, SeekOrigin.Begin);
LumpReader <StripHeader> .ReadLumpFromStream(reader.BaseStream, stripGroup.NumStrips, strip =>
{
Debug.Assert(strip.Flags != StripHeaderFlags.IsTriStrip);
for (var i = 0; i < strip.NumIndices; ++i)
{
outIndices.Add(meshIndexOffset + indices[strip.IndexOffset + i]);
}
});
});
meshData.IndexCount = outIndices.Count - meshData.IndexOffset;
meshData.VertexCount = outVertices.Count - meshData.VertexOffset;
meshList.Add(meshData);
});
modelLodList.Add(lod);
});
modelList.Add(model);
});
_bodyParts[bodyPartIndex] = bodyPart;
});
_models = modelList.ToArray();
_modelLods = modelLodList.ToArray();
_meshes = meshList.ToArray();
_indices = outIndices.ToArray();
_vertices = outVertices.ToArray();
}
}