public unsafe VertexBuffer CreateImmutableBuffer(T[] data, int offset = 0, int length = -1)
{
int realLength = length == -1 ? data.Length - offset : length;
BufferDescription bd = new BufferDescription()
{
ByteWidth = (uint)(_Size * realLength),
Usage = 0, //default
BindFlags = 1, //vertexbuffer
CPUAccessFlags = 0, //none. or write (65536)
MiscFlags = 0,
StructureByteStride = (uint)_Size
};
fixed(T *pData = &data[offset])
{
DataBox box = new DataBox
{
DataPointer = pData,
RowPitch = 0,
SlicePitch = 0,
};
using (var vb = new ComScopeGuard())
{
Device.CreateBuffer(_device.DevicePtr, &bd, &box, out vb.Ptr).Check();
return(new VertexBuffer(_device, _bufferUpdate, vb.Move(), _inputLayout.AddRef(), _Size, realLength, false));
}
}
}