/// <summary>
/// Serializes this description to a blob.
/// </summary>
/// <returns>A serialized version of this description.</returns>
private unsafe Result Serialize(out Blob result, out string errorText)
{
Blob error;
errorText = null;
fixed(void *pParameters = Parameters.managedParameters)
fixed(void *pSamplers = StaticSamplers.managedParameters)
{
__Native native;
native.ParameterCount = Parameters.Count;
native.ParametersPointer = Parameters.nativeParameters;
if (Parameters.managedParameters != null)
{
native.ParametersPointer = (IntPtr)pParameters;
}
native.StaticSamplerCount = StaticSamplers.Count;
native.StaticSamplerPointer = StaticSamplers.nativeParameters;
if (StaticSamplers.managedParameters != null)
{
native.StaticSamplerPointer = (IntPtr)pSamplers;
}
native.Flags = Flags;
var hresult = D3D12.SerializeRootSignature(new IntPtr(&native), RootSignatureVersion.V1, out result, out error);
// TODO: check hresult or just rely on error?
if (error != null)
{
errorText = Utilities.BlobToString(error);
}
return(hresult);
}
}
/// <summary>
/// Gets the debug interface.
/// </summary>
/// <returns></returns>
public static DebugInterface Get()
{
if (debugInterface == null)
{
IntPtr debugInterfacePtr;
D3D12.GetDebugInterface(Utilities.GetGuidFromType(typeof(DebugInterface)), out debugInterfacePtr);
debugInterface = new DebugInterface(debugInterfacePtr);
}
return(debugInterface);
}
/// <summary>
/// Serializes this description to a blob.
/// </summary>
/// <returns>A serialized version of this description.</returns>
/// <msdn-id>dn859363</msdn-id>
/// <unmanaged>HRESULT D3D12SerializeRootSignature([In] const void* pRootSignature,[In] D3D_ROOT_SIGNATURE_VERSION Version,[Out] ID3D10Blob** ppBlob,[Out, Optional] ID3D10Blob** ppErrorBlob)</unmanaged>
/// <unmanaged-short>D3D12SerializeRootSignature</unmanaged-short>
private unsafe Result Serialize(out Blob result, out string errorText)
{
Blob error;
errorText = null;
int length = 0;
var rootParameters = (RootParameter.__Native *) 0;
var pinnedTables = new List <GCHandle>();
try
{
if (Parameters != null)
{
length = Parameters.Length;
rootParameters = (RootParameter.__Native *)Utilities.AllocateMemory(length * Utilities.SizeOf <RootParameter.__Native>());
for (int i = 0; i < length; i++)
{
rootParameters[i] = Parameters[i].native;
if (rootParameters[i].ParameterType == RootParameterType.DescriptorTable && Parameters[i].DescriptorTable != null)
{
var handle = GCHandle.Alloc(Parameters[i].DescriptorTable, GCHandleType.Pinned);
pinnedTables.Add(handle);
rootParameters[i].Union.DescriptorTable.DescriptorRangeCount = Parameters[i].DescriptorTable.Length;
rootParameters[i].Union.DescriptorTable.DescriptorRangesPointer = handle.AddrOfPinnedObject();
}
}
}
fixed(void *pSamplers = StaticSamplers)
{
__Native native;
native.ParameterCount = length;
native.ParametersPointer = new IntPtr(rootParameters);
if (StaticSamplers != null)
{
native.StaticSamplerCount = StaticSamplers.Length;
native.StaticSamplerPointer = new IntPtr(pSamplers);
}
native.Flags = Flags;
var hresult = D3D12.SerializeRootSignature(new IntPtr(&native), RootSignatureVersion.Version1, out result, out error);
// TODO: check hresult or just rely on error?
if (error != null)
{
errorText = Utilities.BlobToString(error);
}
return(hresult);
}
}
finally
{
if (new IntPtr(rootParameters) != IntPtr.Zero)
{
Utilities.FreeMemory(new IntPtr(rootParameters));
}
foreach (var handle in pinnedTables)
{
handle.Free();
}
}
}
private static void CreateDevice(Adapter adapter, FeatureLevel minFeatureLevel, Device instance)
{
D3D12.CreateDevice(adapter, minFeatureLevel, Utilities.GetGuidFromType(typeof(Device)), instance).CheckError();
}
private static void CreateDevice(Adapter adapter, DriverType driverType, DeviceCreationFlags flags,
FeatureLevel minFeatureLevel, Device instance)
{
D3D12.CreateDevice(adapter, driverType, flags, minFeatureLevel, D3D12.SdkVersion, Utilities.GetGuidFromType(typeof(Device)), instance).CheckError();
}
