public GpuDevice(GpuAdapter adapter)
{
//set member to null
mVertexShader = null;
mPixelShader = null;
mInputLayout = null;
//set the adapter
Adapter = adapter;
#if DEBUG
//creation flag, we use debug flag
var creationFlags = SharpDX.Direct3D11.DeviceCreationFlags.Debug;
#else
var creationFlags = SharpDX.Direct3D11.DeviceCreationFlags.None;
#endif
//fetuares level: 11_0, 12_0
var fetuares = new SharpDX.Direct3D.FeatureLevel[2]
{
SharpDX.Direct3D.FeatureLevel.Level_11_0,
SharpDX.Direct3D.FeatureLevel.Level_12_0
};
//create device with current adapter
mDevice = new SharpDX.Direct3D11.Device(Adapter.Adapter, creationFlags, fetuares);
mImmediateContext = Device.ImmediateContext;
LogEmitter.Apply(LogLevel.Information, "[Initialize Graphics Device with {0}]", adapter.Description);
LogEmitter.Apply(LogLevel.Information, "[Graphics Device Feature Level = {0}]", Device.FeatureLevel);
}
public void SetVertexShader(GpuVertexShader vertexShader)
{
//set vertex shader
mVertexShader = vertexShader;
//set vertex shader Direct3D instance to pipeline
ImmediateContext.VertexShader.SetShader(mVertexShader.VertexShader, null, 0);
}
public void Reset()
{
//clear all state and reset it
mVertexShader = null;
mPixelShader = null;
mInputLayout = null;
ImmediateContext.ClearState();
}
public GpuInputLayout(GpuDevice device, InputElement[] inputElements, GpuVertexShader vertexShader)
{
GpuDevice = device;
InputElements = new SharpDX.Direct3D11.InputElement[inputElements.Length];
for (int i = 0; i < InputElements.Length; i++)
{
var element = inputElements[i];
var inputElement = new SharpDX.Direct3D11.InputElement();
inputElement.SemanticName = element.Name;
inputElement.SemanticIndex = element.Index;
inputElement.Slot = 0;
inputElement.Classification = SharpDX.Direct3D11.InputClassification.PerVertexData;
inputElement.InstanceDataStepRate = 0;
if (i == 0)
{
inputElement.AlignedByteOffset = 0;
}
else
{
inputElement.AlignedByteOffset = InputElements[i - 1].AlignedByteOffset + inputElements[i - 1].Size;
}
switch (inputElements[i].Size)
{
case 4:
inputElement.Format = SharpDX.DXGI.Format.R32_Float; break;
case 8:
inputElement.Format = SharpDX.DXGI.Format.R32G32_Float; break;
case 12:
inputElement.Format = SharpDX.DXGI.Format.R32G32B32_Float; break;
case 16:
inputElement.Format = SharpDX.DXGI.Format.R32G32B32A32_Float; break;
default:
break;
}
InputElements[i] = inputElement;
}
mInputLayout = new SharpDX.Direct3D11.InputLayout(GpuDevice.Device, vertexShader.ByteCode, InputElements);
}