protected override bool OnLoad(Model model, File stream)
{
String fileID = stream.ReadFileID();
if (fileID != "UMDL" && fileID != "UMD2")
{
Log.Error("Invalid model file");
return(false);
}
bool hasVertexDeclarations = (fileID == "UMD2");
int memoryUse = Unsafe.SizeOf <Model>();
List <Buffer> vertexBuffers_;
List <Buffer> indexBuffers_;
List <Geometry[]> geometries_ = new List <Geometry[]>();
VertexBufferDesc[] loadVBData_;
IndexBufferDesc[] loadIBData_;
List <GeometryDesc[]> loadGeometries_;
// Read vertex buffers
int numVertexBuffers = (int)stream.Read <uint>();
vertexBuffers_ = new List <Buffer>();//[numVertexBuffers];
vertexBuffers_.Resize(numVertexBuffers);
var morphRangeStarts_ = new int[numVertexBuffers];
var morphRangeCounts_ = new int[numVertexBuffers];
loadVBData_ = new VertexBufferDesc[numVertexBuffers];
var GeometryBoneMappings = new List <int[]>();
var GeometryCenters = new List <vec3>();
for (int i = 0; i < numVertexBuffers; ++i)
{
loadVBData_[i].vertexCount_ = stream.Read <int>();
uint vertexSize = 0;
if (!hasVertexDeclarations)
{
uint elementMask = stream.Read <uint>();
loadVBData_[i].layout = CreateVertexInputStateCreateInfo(elementMask, out vertexSize);
}
else
{
/*
* enum VertexElementSemantic
* {
* SEM_POSITION = 0,
* SEM_NORMAL,
* SEM_BINORMAL,
* SEM_TANGENT,
* SEM_TEXCOORD,
* SEM_COLOR,
* SEM_BLENDWEIGHTS,
* SEM_BLENDINDICES,
* SEM_OBJECTINDEX,
* MAX_VERTEX_ELEMENT_SEMANTICS
* }*/
uint numElements = stream.Read <uint>();
FastList <VertexAttribute> attrs = new FastList <VertexAttribute>();
uint offset = 0;
for (uint j = 0; j < numElements; ++j)
{
uint elementDesc = stream.Read <uint>();
uint type = (elementDesc & 0xff);
uint semantic = ((elementDesc >> 8) & 0xff);
uint index = ((elementDesc >> 16) & 0xff);
VertexAttribute attr = new VertexAttribute(0, j, semanticToFormat[semantic], offset);
offset += semanticSize[semantic];
attrs.Add(attr);
}
vertexSize = offset;
var layout = new VertexLayout(attrs.ToArray());
loadVBData_[i].layout = layout;
//layout.Print();
}
morphRangeStarts_[i] = stream.Read <int>();
morphRangeCounts_[i] = stream.Read <int>();
loadVBData_[i].vertexSize_ = (int)vertexSize;
loadVBData_[i].dataSize_ = loadVBData_[i].vertexCount_ * (int)vertexSize;
loadVBData_[i].data_ = stream.ReadArray <byte>(loadVBData_[i].dataSize_);
}
// Read index buffers
int numIndexBuffers = (int)stream.Read <uint>();
indexBuffers_ = new List <Buffer>();//[numIndexBuffers];
indexBuffers_.Resize(numIndexBuffers);
loadIBData_ = new IndexBufferDesc[numIndexBuffers];
for (int i = 0; i < numIndexBuffers; ++i)
{
int indexCount = stream.Read <int>();
int indexSize = stream.Read <int>();
loadIBData_[i].indexCount_ = indexCount;
loadIBData_[i].indexSize_ = indexSize;
loadIBData_[i].dataSize_ = indexCount * indexSize;
loadIBData_[i].data_ = stream.ReadArray <byte>(loadIBData_[i].dataSize_);
}
// Read geometries
int numGeometries = stream.Read <int>();
loadGeometries_ = new List <GeometryDesc[]>(numGeometries);
geometries_.Resize(numGeometries);
for (int i = 0; i < numGeometries; ++i)
{
// Read bone mappings
int boneMappingCount = stream.Read <int>();
int[] boneMapping = new int[boneMappingCount];
for (uint j = 0; j < boneMappingCount; ++j)
{
boneMapping[j] = stream.Read <int>();
}
GeometryBoneMappings.Add(boneMapping);
int numLodLevels = stream.Read <int>();
Geometry[] geometryLodLevels = new Geometry[numLodLevels];
GeometryDesc[] deoDesc = new GeometryDesc[numLodLevels];
loadGeometries_.Add(deoDesc);
for (int j = 0; j < numLodLevels; ++j)
{
float distance = stream.Read <float>();
/*
* public enum PrimitiveType : ushort
* {
* TRIANGLE_LIST = 0,
* TRIANGLE_STRIP,
* LINE_LIST,
* LINE_STRIP,
* POINT_LIST
* }
*/
VkPrimitiveTopology type = primitiveType2Topology[stream.Read <int>()];
int vbRef = stream.Read <int>();
int ibRef = stream.Read <int>();
int indexStart = stream.Read <int>();
int indexCount = stream.Read <int>();
if (vbRef >= vertexBuffers_.Count)
{
Log.Error("Vertex buffer index out of bounds");
loadVBData_ = null;
loadIBData_ = null;
loadGeometries_.Clear();
return(false);
}
if (ibRef >= indexBuffers_.Count)
{
Log.Error("Index buffer index out of bounds");
loadVBData_ = null;
loadIBData_ = null;
loadGeometries_.Clear();
return(false);
}
Geometry geometry = new Geometry();
geometry.LodDistance = distance;
// Prepare geometry to be defined during EndLoad()
deoDesc[j].primitiveTopology = type;
deoDesc[j].vbRef = vbRef;
deoDesc[j].ibRef = ibRef;
deoDesc[j].indexStart = indexStart;
deoDesc[j].indexCount = indexCount;
geometryLodLevels[j] = geometry;
memoryUse += Unsafe.SizeOf <Geometry>();
}
geometries_[i] = geometryLodLevels;
}
// Read morphs
uint numMorphs = stream.Read <uint>();
var morphs_ = new ModelMorph[(int)numMorphs];
for (int i = 0; i < numMorphs; ++i)
{
morphs_[i].name_ = stream.ReadCString();
morphs_[i].weight_ = 0.0f;
uint numBuffers = stream.Read <uint>();
for (int j = 0; j < numBuffers; ++j)
{
VertexBufferMorph newBuffer;
int bufferIndex = stream.Read <int>();
newBuffer.elementMask_ = stream.Read <uint>();
newBuffer.vertexCount_ = stream.Read <int>();
// Base size: size of each vertex index
int vertexSize = sizeof(int);
// Add size of individual elements
unsafe
{
if ((newBuffer.elementMask_ & MASK_POSITION) != 0)
{
vertexSize += sizeof(vec3);
}
if ((newBuffer.elementMask_ & MASK_NORMAL) != 0)
{
vertexSize += sizeof(vec3);
}
if ((newBuffer.elementMask_ & MASK_TANGENT) != 0)
{
vertexSize += sizeof(vec3);
}
}
newBuffer.dataSize_ = newBuffer.vertexCount_ * (int)vertexSize;
newBuffer.morphData_ = stream.ReadArray <byte>((int)newBuffer.dataSize_);
morphs_[i].buffers_[bufferIndex] = newBuffer;
memoryUse += Unsafe.SizeOf <VertexBufferMorph>() + newBuffer.vertexCount_ * vertexSize;
}
memoryUse += Unsafe.SizeOf <ModelMorph>();
}
Skeleton skeleton_ = new Skeleton();
// Read skeleton
skeleton_.Load(stream);
memoryUse += skeleton_.NumBones * Unsafe.SizeOf <Bone>();
// Read bounding box
var boundingBox_ = stream.Read <BoundingBox>();
// Read geometry centers
for (int i = 0; i < geometries_.Count && !stream.IsEof; ++i)
{
GeometryCenters.Add(stream.Read <vec3>());
}
while (GeometryCenters.Count < geometries_.Count)
{
GeometryCenters.Add(vec3.Zero);
}
model.VertexBuffers = vertexBuffers_;
model.IndexBuffers = indexBuffers_;
model.Skeleton = skeleton_;
model.BoundingBox = boundingBox_;
model.Geometries = geometries_;
model.GeometryBoneMappings = GeometryBoneMappings;
model.GeometryCenters = GeometryCenters;
//model.morphRangeStarts_ = morphRangeStarts_;
//model.morphRangeCounts_ = morphRangeCounts_;
model.MemoryUse = memoryUse;
for (int i = 0; i < vertexBuffers_.Count; ++i)
{
ref VertexBufferDesc desc = ref loadVBData_[i];
if (desc.data_ != null)
{
vertexBuffers_[i] = Buffer.Create(VkBufferUsageFlags.VertexBuffer, false
, (uint)desc.vertexSize_, (uint)desc.vertexCount_, Utilities.AsPointer(ref desc.data_[0]));
}
}
public override void Free(FastList <T> obj)
{
obj.Clear();
Add(obj);
}