protected override unsafe ID3D12RootSignature *CreateRootSignature()
{
using ComPtr <ID3DBlob> signature = null;
using ComPtr <ID3DBlob> error = null;
var featureData = new D3D12_FEATURE_DATA_ROOT_SIGNATURE {
// This is the highest version the sample supports. If CheckFeatureSupport succeeds, the HighestVersion returned will not be greater than this.
HighestVersion = D3D_ROOT_SIGNATURE_VERSION_1_1
};
if (FAILED(D3DDevice->CheckFeatureSupport(D3D12_FEATURE_ROOT_SIGNATURE, &featureData, (uint)sizeof(D3D12_FEATURE))))
{
featureData.HighestVersion = D3D_ROOT_SIGNATURE_VERSION_1_0;
}
const int RangesCount = 1;
var ranges = stackalloc D3D12_DESCRIPTOR_RANGE1[RangesCount];
ranges[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0, 0, D3D12_DESCRIPTOR_RANGE_FLAG_DATA_STATIC);
const int RootParametersCount = 1;
var rootParameters = stackalloc D3D12_ROOT_PARAMETER1[RootParametersCount];
rootParameters[0].InitAsDescriptorTable(1, ranges, D3D12_SHADER_VISIBILITY_PIXEL);
var sampler = new D3D12_STATIC_SAMPLER_DESC {
Filter = D3D12_FILTER.D3D12_FILTER_MIN_MAG_MIP_POINT,
AddressU = D3D12_TEXTURE_ADDRESS_MODE_BORDER,
AddressV = D3D12_TEXTURE_ADDRESS_MODE_BORDER,
AddressW = D3D12_TEXTURE_ADDRESS_MODE_BORDER,
MipLODBias = 0,
MaxAnisotropy = 0,
ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER,
BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK,
MinLOD = 0.0f,
MaxLOD = D3D12_FLOAT32_MAX,
ShaderRegister = 0,
RegisterSpace = 0,
ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL,
};
var rootSignatureDesc = new D3D12_VERSIONED_ROOT_SIGNATURE_DESC();
rootSignatureDesc.Init_1_1(RootParametersCount, rootParameters, 1, &sampler, D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT);
ThrowIfFailed(nameof(D3D12SerializeVersionedRootSignature), D3D12SerializeVersionedRootSignature(
&rootSignatureDesc, featureData.HighestVersion, signature.GetAddressOf(), error.GetAddressOf()));
ID3D12RootSignature *rootSignature;
var iid = IID_ID3D12RootSignature;
ThrowIfFailed(nameof(ID3D12Device.CreateRootSignature), D3DDevice->CreateRootSignature(0, signature.Get()->GetBufferPointer(), signature.Get()->GetBufferSize(), &iid, (void **)&rootSignature));
return(rootSignature);
}
private static void TranslateStaticSamplers(ReadOnlyMemory <StaticSampler> staticSamplers, D3D12_STATIC_SAMPLER_DESC[] samplers)
{
var span = staticSamplers.Span;
for (var i = 0; i < span.Length; i++)
{
var staticSampler = span[i];
var desc = staticSampler.Sampler.GetDesc();
D3D12_STATIC_BORDER_COLOR staticBorderColor;
var borderColor = RgbaColor.FromPointer(desc.BorderColor);
if (borderColor == StaticSampler.OpaqueBlack)
{
staticBorderColor = D3D12_STATIC_BORDER_COLOR.D3D12_STATIC_BORDER_COLOR_OPAQUE_BLACK;
}
else if (borderColor == StaticSampler.OpaqueWhite)
{
staticBorderColor = D3D12_STATIC_BORDER_COLOR.D3D12_STATIC_BORDER_COLOR_OPAQUE_WHITE;
}
else if (borderColor == StaticSampler.TransparentBlack)
{
staticBorderColor = D3D12_STATIC_BORDER_COLOR.D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
}
else
{
ThrowHelper.ThrowArgumentException("Static sampler must have opaque black, opaque white, or transparent black border color");
staticBorderColor = default;
}
var sampler = new D3D12_STATIC_SAMPLER_DESC
{
AddressU = desc.AddressU,
AddressW = desc.AddressW,
AddressV = desc.AddressV,
ComparisonFunc = desc.ComparisonFunc,
BorderColor = staticBorderColor,
Filter = desc.Filter,
MaxAnisotropy = desc.MaxAnisotropy,
MaxLOD = desc.MaxLOD,
MinLOD = desc.MinLOD,
MipLODBias = desc.MipLODBias,
RegisterSpace = staticSampler.RegisterSpace,
ShaderRegister = staticSampler.ShaderRegister,
ShaderVisibility = (D3D12_SHADER_VISIBILITY)staticSampler.Visibility
};
samplers[i] = sampler;
}
}
public static void Init([NativeTypeName("D3D12_STATIC_SAMPLER_DESC &")] out D3D12_STATIC_SAMPLER_DESC samplerDesc, uint shaderRegister, D3D12_FILTER filter = D3D12_FILTER_ANISOTROPIC, D3D12_TEXTURE_ADDRESS_MODE addressU = D3D12_TEXTURE_ADDRESS_MODE_WRAP, D3D12_TEXTURE_ADDRESS_MODE addressV = D3D12_TEXTURE_ADDRESS_MODE_WRAP, D3D12_TEXTURE_ADDRESS_MODE addressW = D3D12_TEXTURE_ADDRESS_MODE_WRAP, float mipLODBias = 0, uint maxAnisotropy = 16, D3D12_COMPARISON_FUNC comparisonFunc = D3D12_COMPARISON_FUNC_LESS_EQUAL, D3D12_STATIC_BORDER_COLOR borderColor = D3D12_STATIC_BORDER_COLOR_OPAQUE_WHITE, float minLOD = 0, float maxLOD = D3D12_FLOAT32_MAX, D3D12_SHADER_VISIBILITY shaderVisibility = D3D12_SHADER_VISIBILITY_ALL, uint registerSpace = 0)
{
samplerDesc.ShaderRegister = shaderRegister;
samplerDesc.Filter = filter;
samplerDesc.AddressU = addressU;
samplerDesc.AddressV = addressV;
samplerDesc.AddressW = addressW;
samplerDesc.MipLODBias = mipLODBias;
samplerDesc.MaxAnisotropy = maxAnisotropy;
samplerDesc.ComparisonFunc = comparisonFunc;
samplerDesc.BorderColor = borderColor;
samplerDesc.MinLOD = minLOD;
samplerDesc.MaxLOD = maxLOD;
samplerDesc.ShaderVisibility = shaderVisibility;
samplerDesc.RegisterSpace = registerSpace;
}
private Pointer <ID3D12RootSignature> CreateD3D12RootSignature()
{
ThrowIfDisposedOrDisposing(_state, nameof(D3D12GraphicsPipelineSignature));
ID3DBlob *rootSignatureBlob = null;
ID3DBlob *rootSignatureErrorBlob = null;
try
{
ID3D12RootSignature *d3d12RootSignature;
var rootSignatureDesc = new D3D12_ROOT_SIGNATURE_DESC {
Flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT,
};
var resources = Resources;
var resourcesLength = resources.Length;
var rootParametersLength = 0;
var staticSamplersLength = 0;
var rootParametersIndex = 0;
var constantShaderRegister = 0;
var textureShaderRegister = 0;
var staticSamplersIndex = 0;
for (var inputIndex = 0; inputIndex < resourcesLength; inputIndex++)
{
rootParametersLength++;
if (resources[inputIndex].Kind == GraphicsPipelineResourceKind.Texture)
{
staticSamplersLength++;
}
}
var rootParameters = stackalloc D3D12_ROOT_PARAMETER[rootParametersLength];
var staticSamplers = stackalloc D3D12_STATIC_SAMPLER_DESC[staticSamplersLength];
var descriptorRanges = stackalloc D3D12_DESCRIPTOR_RANGE[staticSamplersLength];
for (var inputIndex = 0; inputIndex < resourcesLength; inputIndex++)
{
var input = resources[inputIndex];
switch (input.Kind)
{
case GraphicsPipelineResourceKind.ConstantBuffer:
{
var shaderVisibility = GetD3D12ShaderVisiblity(input.ShaderVisibility);
rootParameters[rootParametersIndex].InitAsConstantBufferView(unchecked ((uint)constantShaderRegister), registerSpace: 0, shaderVisibility);
constantShaderRegister++;
rootParametersIndex++;
break;
}
case GraphicsPipelineResourceKind.Texture:
{
descriptorRanges[staticSamplersIndex] = new D3D12_DESCRIPTOR_RANGE(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, numDescriptors: 1, baseShaderRegister: unchecked ((uint)textureShaderRegister));
var shaderVisibility = GetD3D12ShaderVisiblity(input.ShaderVisibility);
rootParameters[rootParametersIndex].InitAsDescriptorTable(1, &descriptorRanges[staticSamplersIndex], shaderVisibility);
staticSamplers[staticSamplersIndex] = new D3D12_STATIC_SAMPLER_DESC(
shaderRegister: unchecked ((uint)staticSamplersIndex),
shaderVisibility: shaderVisibility
);
textureShaderRegister++;
rootParametersIndex++;
staticSamplersIndex++;
break;
}
default:
{
break;
}
}
}
rootSignatureDesc.NumParameters = unchecked ((uint)rootParametersLength);
rootSignatureDesc.pParameters = rootParameters;
rootSignatureDesc.NumStaticSamplers = unchecked ((uint)staticSamplersLength);
rootSignatureDesc.pStaticSamplers = staticSamplers;
ThrowExternalExceptionIfFailed(D3D12SerializeRootSignature(&rootSignatureDesc, D3D_ROOT_SIGNATURE_VERSION_1, &rootSignatureBlob, &rootSignatureErrorBlob), nameof(D3D12SerializeRootSignature));
var iid = IID_ID3D12RootSignature;
ThrowExternalExceptionIfFailed(Device.D3D12Device->CreateRootSignature(0, rootSignatureBlob->GetBufferPointer(), rootSignatureBlob->GetBufferSize(), &iid, (void **)&d3d12RootSignature), nameof(ID3D12Device.CreateRootSignature));
return(d3d12RootSignature);
}
finally
{
ReleaseIfNotNull(rootSignatureErrorBlob);
ReleaseIfNotNull(rootSignatureBlob);
}
// Load the sample assets.
private void LoadAssets()
{
Guid iid;
ID3DBlob *signature = null;
ID3DBlob *error = null;
ID3DBlob *vertexShader = null;
ID3DBlob *pixelShader = null;
try
{
// Create the root signature.
{
var featureData = new D3D12_FEATURE_DATA_ROOT_SIGNATURE {
// This is the highest version the sample supports. If CheckFeatureSupport succeeds, the HighestVersion returned will not be greater than this.
HighestVersion = D3D_ROOT_SIGNATURE_VERSION_1_1
};
if (FAILED(_device->CheckFeatureSupport(D3D12_FEATURE_ROOT_SIGNATURE, &featureData, (uint)sizeof(D3D12_FEATURE))))
{
featureData.HighestVersion = D3D_ROOT_SIGNATURE_VERSION_1_0;
}
const int RangesCount = 1;
var ranges = stackalloc D3D12_DESCRIPTOR_RANGE1[RangesCount];
ranges[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0, 0, D3D12_DESCRIPTOR_RANGE_FLAG_DATA_STATIC);
const int RootParametersCount = 1;
var rootParameters = stackalloc D3D12_ROOT_PARAMETER1[RootParametersCount];
rootParameters[0].InitAsDescriptorTable(1, ranges, D3D12_SHADER_VISIBILITY_PIXEL);
var sampler = new D3D12_STATIC_SAMPLER_DESC {
Filter = D3D12_FILTER.D3D12_FILTER_MIN_MAG_MIP_POINT,
AddressU = D3D12_TEXTURE_ADDRESS_MODE_BORDER,
AddressV = D3D12_TEXTURE_ADDRESS_MODE_BORDER,
AddressW = D3D12_TEXTURE_ADDRESS_MODE_BORDER,
MipLODBias = 0,
MaxAnisotropy = 0,
ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER,
BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK,
MinLOD = 0.0f,
MaxLOD = D3D12_FLOAT32_MAX,
ShaderRegister = 0,
RegisterSpace = 0,
ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL,
};
var rootSignatureDesc = new D3D12_VERSIONED_ROOT_SIGNATURE_DESC();
rootSignatureDesc.Init_1_1(RootParametersCount, rootParameters, 1, &sampler, D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT);
ThrowIfFailed(nameof(D3D12SerializeVersionedRootSignature), D3D12SerializeVersionedRootSignature(
&rootSignatureDesc, featureData.HighestVersion, &signature, &error));
fixed(ID3D12RootSignature **rootSignature = &_rootSignature)
{
iid = IID_ID3D12RootSignature;
ThrowIfFailed(nameof(ID3D12Device.CreateRootSignature), _device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), &iid, (void **)rootSignature));
}
}
// Create the pipeline state, which includes compiling and loading shaders.
{
var compileFlags = 0u;
#if DEBUG
// Enable better shader debugging with the graphics debugging tools.
compileFlags |= D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION;
#endif
fixed(char *fileName = GetAssetFullPath(@"D3D12\Assets\Shaders\HelloTexture.hlsl"))
{
var entryPoint = 0x00006E69614D5356; // VSMain
var target = 0x0000305F355F7376; // vs_5_0
ThrowIfFailed(nameof(D3DCompileFromFile), D3DCompileFromFile((ushort *)fileName, pDefines: null, pInclude: null, (sbyte *)&entryPoint, (sbyte *)&target, compileFlags, Flags2: 0, &vertexShader, ppErrorMsgs: null));
entryPoint = 0x00006E69614D5350; // PSMain
target = 0x0000305F355F7370; // ps_5_0
ThrowIfFailed(nameof(D3DCompileFromFile), D3DCompileFromFile((ushort *)fileName, pDefines: null, pInclude: null, (sbyte *)&entryPoint, (sbyte *)&target, compileFlags, Flags2: 0, &pixelShader, ppErrorMsgs: null));
}
// Define the vertex input layout.
const int InputElementDescsCount = 2;
var semanticName0 = stackalloc ulong[2] {
0x4E4F495449534F50, // POSITION
0x0000000000000000,
};
var semanticName1 = stackalloc ulong[2] {
0x44524F4F43584554, // TEXCOORD
0x0000000000000000,
};
var inputElementDescs = stackalloc D3D12_INPUT_ELEMENT_DESC[InputElementDescsCount] {
new D3D12_INPUT_ELEMENT_DESC {
SemanticName = (sbyte *)semanticName0,
Format = DXGI_FORMAT_R32G32B32_FLOAT,
InputSlotClass = D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA,
},
new D3D12_INPUT_ELEMENT_DESC {
SemanticName = (sbyte *)semanticName1,
Format = DXGI_FORMAT_R32G32_FLOAT,
AlignedByteOffset = 12,
InputSlotClass = D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA,
},
};
// Describe and create the graphics pipeline state object (PSO).
var psoDesc = new D3D12_GRAPHICS_PIPELINE_STATE_DESC {
InputLayout = new D3D12_INPUT_LAYOUT_DESC {
pInputElementDescs = inputElementDescs,
NumElements = InputElementDescsCount,
},
pRootSignature = _rootSignature,
VS = new D3D12_SHADER_BYTECODE(vertexShader),
PS = new D3D12_SHADER_BYTECODE(pixelShader),
RasterizerState = D3D12_RASTERIZER_DESC.DEFAULT,
BlendState = D3D12_BLEND_DESC.DEFAULT,
DepthStencilState = new D3D12_DEPTH_STENCIL_DESC {
DepthEnable = FALSE,
StencilEnable = FALSE,
},
SampleMask = uint.MaxValue,
PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE,
NumRenderTargets = 1,
SampleDesc = new DXGI_SAMPLE_DESC(count: 1, quality: 0),
};
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
fixed(ID3D12PipelineState **pipelineState = &_pipelineState)
{
iid = IID_ID3D12PipelineState;
ThrowIfFailed(nameof(ID3D12Device.CreateGraphicsPipelineState), _device->CreateGraphicsPipelineState(&psoDesc, &iid, (void **)pipelineState));
}
}
// Create the command list.
fixed(ID3D12GraphicsCommandList **commandList = &_commandList)
{
iid = IID_ID3D12GraphicsCommandList;
ThrowIfFailed(nameof(ID3D12Device.CreateCommandList), _device->CreateCommandList(nodeMask: 0, D3D12_COMMAND_LIST_TYPE_DIRECT, _commandAllocator, _pipelineState, &iid, (void **)commandList));
}
// Create the vertex buffer.
{
// Define the geometry for a triangle.
const int TriangleVerticesCount = 3;
var triangleVertices = stackalloc Vertex[TriangleVerticesCount] {
new Vertex {
Position = new Vector3(0.0f, 0.25f * AspectRatio, 0.0f),
UV = new Vector2(0.5f, 0.0f)
},
new Vertex {
Position = new Vector3(0.25f, -0.25f * AspectRatio, 0.0f),
UV = new Vector2(1.0f, 1.0f)
},
new Vertex {
Position = new Vector3(-0.25f, -0.25f * AspectRatio, 0.0f),
UV = new Vector2(0.0f, 1.0f)
},
};
var vertexBufferSize = (uint)sizeof(Vertex) * TriangleVerticesCount;
// Note: using upload heaps to transfer static data like vert buffers is not
// recommended. Every time the GPU needs it, the upload heap will be marshalled
// over. Please read up on Default Heap usage. An upload heap is used here for
// code simplicity and because there are very few verts to actually transfer.
fixed(ID3D12Resource **vertexBuffer = &_vertexBuffer)
{
var heapProperties = new D3D12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD);
var bufferDesc = D3D12_RESOURCE_DESC.Buffer(vertexBufferSize);
iid = IID_ID3D12Resource;
ThrowIfFailed(nameof(ID3D12Device.CreateCommittedResource), _device->CreateCommittedResource(
&heapProperties,
D3D12_HEAP_FLAG_NONE,
&bufferDesc,
D3D12_RESOURCE_STATE_GENERIC_READ,
pOptimizedClearValue: null,
&iid,
(void **)vertexBuffer
));
}
// Copy the triangle data to the vertex buffer.
var readRange = new D3D12_RANGE();
byte *pVertexDataBegin;
ThrowIfFailed(nameof(ID3D12Resource.Map), _vertexBuffer->Map(Subresource: 0, &readRange, (void **)&pVertexDataBegin));
Unsafe.CopyBlock(pVertexDataBegin, triangleVertices, vertexBufferSize);
_vertexBuffer->Unmap(0, null);
// Initialize the vertex buffer view.
_vertexBufferView.BufferLocation = _vertexBuffer->GetGPUVirtualAddress();
_vertexBufferView.StrideInBytes = (uint)sizeof(Vertex);
_vertexBufferView.SizeInBytes = vertexBufferSize;
}
// Note: textureUploadHeap needs to stay in scope until
// the command list that references it has finished executing on the GPU.
// We will flush the GPU at the end of this method to ensure the resource is not
// prematurely destroyed.
ID3D12Resource *textureUploadHeap;
// Create the texture.
{
// Describe and create a Texture2D.
var textureDesc = new D3D12_RESOURCE_DESC {
MipLevels = 1,
Format = DXGI_FORMAT_R8G8B8A8_UNORM,
Width = TextureWidth,
Height = TextureHeight,
Flags = D3D12_RESOURCE_FLAG_NONE,
DepthOrArraySize = 1,
SampleDesc = new DXGI_SAMPLE_DESC {
Count = 1,
Quality = 0,
},
Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D,
};
fixed(ID3D12Resource **pTexture = &_texture)
{
var heapProperties = new D3D12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT);
iid = IID_ID3D12Resource;
ThrowIfFailed(nameof(ID3D12Device.CreateCommittedResource), _device->CreateCommittedResource(
&heapProperties,
D3D12_HEAP_FLAG_NONE,
&textureDesc,
D3D12_RESOURCE_STATE_COPY_DEST,
pOptimizedClearValue: null,
&iid,
(void **)pTexture
));
var uploadBufferSize = GetRequiredIntermediateSize(_texture, 0, 1);
// Create the GPU upload buffer.
heapProperties = new D3D12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD);
var bufferDesc = D3D12_RESOURCE_DESC.Buffer(uploadBufferSize);
ThrowIfFailed(nameof(ID3D12Device.CreateCommittedResource), _device->CreateCommittedResource(
&heapProperties,
D3D12_HEAP_FLAG_NONE,
&bufferDesc,
D3D12_RESOURCE_STATE_GENERIC_READ,
pOptimizedClearValue: null,
&iid,
(void **)&textureUploadHeap
));
}
// Copy data to the intermediate upload heap and then schedule a copy
// from the upload heap to the Texture2D.
var texture = GenerateTextureData();
var rowPitch = TextureWidth * TexturePixelSize;
var slicePitch = rowPitch * TextureHeight;
D3D12_SUBRESOURCE_DATA textureData;
fixed(byte *pTexture = &texture[0])
{
textureData = new D3D12_SUBRESOURCE_DATA {
pData = (void *)pTexture,
RowPitch = (nint)rowPitch,
SlicePitch = (nint)slicePitch,
};
}
UpdateSubresources(_commandList, _texture, textureUploadHeap, 0, 0, 1, &textureData);
var barrier = D3D12_RESOURCE_BARRIER.InitTransition(_texture, D3D12_RESOURCE_STATE_COPY_DEST, D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE);
_commandList->ResourceBarrier(1, &barrier);
// Describe and create a SRV for the texture.
var srvDesc = new D3D12_SHADER_RESOURCE_VIEW_DESC {
Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING,
Format = textureDesc.Format,
ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D,
};
srvDesc.Anonymous.Texture2D.MipLevels = 1;
_device->CreateShaderResourceView(_texture, &srvDesc, _srvHeap->GetCPUDescriptorHandleForHeapStart());
}
// Close the command list and execute it to begin the initial GPU setup.
ThrowIfFailed(nameof(ID3D12GraphicsCommandList.Close), _commandList->Close());
const int CommandListsCount = 1;
var ppCommandLists = stackalloc ID3D12CommandList *[CommandListsCount] {
(ID3D12CommandList *)_commandList,
};
_commandQueue->ExecuteCommandLists(CommandListsCount, ppCommandLists);
// Create synchronization objects and wait until assets have been uploaded to the GPU.
{
fixed(ID3D12Fence **fence = &_fence)
{
iid = IID_ID3D12Fence;
ThrowIfFailed(nameof(ID3D12Device.CreateFence), _device->CreateFence(0, D3D12_FENCE_FLAG_NONE, &iid, (void **)fence));
_fenceValue = 1;
}
// Create an event handle to use for frame synchronization.
_fenceEvent = CreateEventW(lpEventAttributes: null, bManualReset: FALSE, bInitialState: FALSE, lpName: null);
if (_fenceEvent == null)
{
var hr = Marshal.GetHRForLastWin32Error();
Marshal.ThrowExceptionForHR(hr);
}
// Wait for the command list to execute; we are reusing the same command
// list in our main loop but for now, we just want to wait for setup to
// complete before continuing.
WaitForPreviousFrame();
}
}
finally
{
if (signature != null)
{
signature->Release();
}
if (error != null)
{
error->Release();
}
if (vertexShader != null)
{
vertexShader->Release();
}
if (pixelShader != null)
{
pixelShader->Release();
}
}
}
