public unsafe VertexDataProcessorGroup CreateVertexDataProcessors(Type[] types)
{
if (_disposed)
{
throw new ObjectDisposedException("Pipeline");
}
var desc = Enumerable.Empty <InputElementDescription>();
var processors = new object[types.Length];
var deviceTypeList = new[] { typeof(LightDevice) };
var deviceObject = new object[] { _device };
for (int i = 0; i < types.Length; ++i)
{
desc = desc.Concat(InputElementDescriptionFactory.Create(types[i], i));
var processorType = typeof(VertexDataProcessor <>).MakeGenericType(types[i]);
var ctor = processorType.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic,
null, deviceTypeList, null);
processors[i] = ctor.Invoke(deviceObject);
}
var list = desc.ToArray();
using (var layout = new ComScopeGuard())
{
fixed(InputElementDescription *d = list)
{
Device.CreateInputLayout(_device.DevicePtr, d, (uint)list.Length,
Blob.GetBufferPointer(_signatureBlob), Blob.GetBufferSize(_signatureBlob), out layout.Ptr).Check();
}
return(new VertexDataProcessorGroup(_device, types, processors, layout.Move()));
}
}
public unsafe ShaderResourceBuffer <T> CreateShaderResourceBuffer <T>(T[] data, bool isStructured) where T : unmanaged
{
var elementSize = Marshal.SizeOf <T>();
BufferDescription bd = new BufferDescription()
{
ByteWidth = (uint)(elementSize * data.Length),
Usage = 1, //immutable
BindFlags = 8, //shader resource
CPUAccessFlags = 0, //none
MiscFlags = isStructured ? 64u : 0u, //D3D11_RESOURCE_MISC_BUFFER_STRUCTURED
StructureByteStride = (uint)elementSize,
};
using (var buffer = new ComScopeGuard())
{
fixed(T *pData = &data[0])
{
DataBox box = new DataBox
{
DataPointer = pData,
RowPitch = 0,
SlicePitch = 0,
};
Device.CreateBuffer(_device.DevicePtr, &bd, &box, out buffer.Ptr).Check();
}
using (var view = new ComScopeGuard())
{
int *viewDesc = stackalloc int[5]
{
isStructured ? 0 : InputElementDescriptionFactory.GetFormatFromType(typeof(T)),
isStructured ? 11 : 1, //D3D_SRV_DIMENSION_BUFFEREX or D3D_SRV_DIMENSION_BUFFER
0, //FirstElement = 0
data.Length, //NumElements
0, //Not used
};
Device.CreateShaderResourceView(_device.DevicePtr, buffer.Ptr, viewDesc, out view.Ptr).Check();
return(new ShaderResourceBuffer <T>(_device, buffer.Move(), view.Move()));
}
}
}
internal static InputElementDescription[] CreateLayoutFromType(int slot)
{
return(InputElementDescriptionFactory.Create(typeof(T), slot));
}
