public static unsafe void CreateBlob(PointerSize size, Blob blobOut)
{
IntPtr num = IntPtr.Zero;
Result result = (Result) D3DCommon.D3DCreateBlob_((void*) size, (void*) &num);
blobOut.NativePointer = num;
result.CheckError();
}
/// <summary>
/// Initializes a new instance of the <see cref="T:SharpDX.D3DCompiler.ShaderSignature"/> class.
/// </summary>
/// <param name="blob">The BLOB.</param>
public ShaderSignature(Blob blob)
{
Data = new byte[blob.BufferSize];
Utilities.Read(blob.BufferPointer, Data, 0, Data.Length);
blob.Dispose();
}
/// <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();
}
}
}
/// <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.Version1, out result, out error);
// TODO: check hresult or just rely on error?
if(error != null)
{
errorText = Utilities.BlobToString(error);
}
return hresult;
}
}
