void D3D12Fullscreen::OnSizeChanged(UINT width, UINT height, bool minimized)
{
// Determine if the swap buffers and other resources need to be resized or not.
if ((width != m_width || height != m_height) && !minimized)
{
// Flush all current GPU commands.
WaitForGpu();
// Release the resources holding references to the swap chain (requirement of
// IDXGISwapChain::ResizeBuffers) and reset the frame fence values to the
// current fence value.
for (UINT n = 0; n < FrameCount; n++)
{
m_renderTargets[n].Reset();
m_fenceValues[n] = m_fenceValues[m_frameIndex];
}
// Resize the swap chain to the desired dimensions.
DXGI_SWAP_CHAIN_DESC desc = {};
m_swapChain->GetDesc(&desc);
ThrowIfFailed(m_swapChain->ResizeBuffers(FrameCount, width, height, desc.BufferDesc.Format, desc.Flags));
// Reset the frame index to the current back buffer index.
m_frameIndex = m_swapChain->GetCurrentBackBufferIndex();
// Update the width, height, and aspect ratio member variables.
UpdateForSizeChange(width, height);
LoadSizeDependentResources();
}
m_windowVisible = !minimized;
}
// Fill the command list with all the render commands and dependent state.
void D3D12Fullscreen::PopulateCommandList()
{
// Command list allocators can only be reset when the associated
// command lists have finished execution on the GPU; apps should use
// fences to determine GPU execution progress.
ThrowIfFailed(m_commandAllocators[m_frameIndex]->Reset());
// However, when ExecuteCommandList() is called on a particular command
// list, that command list can then be reset at any time and must be before
// re-recording.
ThrowIfFailed(m_commandList->Reset(m_commandAllocators[m_frameIndex].Get(), m_pipelineState.Get()));
if (m_resizeResources)
{
// Reload resources that depend on the size of the swap chain.
LoadSizeDependentResources();
}
// Set necessary state.
m_commandList->SetGraphicsRootSignature(m_rootSignature.Get());
ID3D12DescriptorHeap* ppHeaps[] = { m_cbvHeap.Get() };
m_commandList->SetDescriptorHeaps(_countof(ppHeaps), ppHeaps);
CD3DX12_GPU_DESCRIPTOR_HANDLE cbvHandle(m_cbvHeap->GetGPUDescriptorHandleForHeapStart(), m_frameIndex, m_cbvDescriptorSize);
m_commandList->SetGraphicsRootDescriptorTable(0, cbvHandle);
m_commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
m_commandList->RSSetViewports(1, &m_viewport);
m_commandList->RSSetScissorRects(1, &m_scissorRect);
// Indicate that the back buffer will be used as a render target.
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET));
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart(), m_frameIndex, m_rtvDescriptorSize);
m_commandList->OMSetRenderTargets(1, &rtvHandle, FALSE, nullptr);
// Record commands.
const float clearColor[] = { 0.0f, 0.2f, 0.4f, 1.0f };
m_commandList->ClearRenderTargetView(rtvHandle, clearColor, 0, nullptr);
m_commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
m_commandList->IASetVertexBuffers(0, 1, &m_vertexBufferView);
PIXBeginEvent(m_commandList.Get(), 0, L"Draw a thin rectangle");
m_commandList->DrawInstanced(4, 1, 0, 0);
PIXEndEvent(m_commandList.Get());
// Indicate that the back buffer will now be used to present.
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT));
ThrowIfFailed(m_commandList->Close());
}
void D3D12HDR::UpdateSwapChainBuffer(UINT width, UINT height, DXGI_FORMAT format)
{
if (!m_swapChain)
{
return;
}
// Flush all current GPU commands.
WaitForGpu();
// Release the resources holding references to the swap chain (requirement of
// IDXGISwapChain::ResizeBuffers) and reset the frame fence values to the
// current fence value.
for (UINT n = 0; n < FrameCount; n++)
{
m_renderTargets[n].Reset();
m_fenceValues[n] = m_fenceValues[m_frameIndex];
}
if (m_enableUI)
{
m_uiLayer->ReleaseResources();
}
// Resize the swap chain to the desired dimensions.
DXGI_SWAP_CHAIN_DESC1 desc = {};
m_swapChain->GetDesc1(&desc);
ThrowIfFailed(m_swapChain->ResizeBuffers(FrameCount, width, height, format, desc.Flags));
EnsureSwapChainColorSpace(m_currentSwapChainBitDepth, m_enableST2084);
// Reset the frame index to the current back buffer index.
m_frameIndex = m_swapChain->GetCurrentBackBufferIndex();
// Update the width, height, and aspect ratio member variables.
UpdateForSizeChange(width, height);
LoadSizeDependentResources();
}
// Load the sample assets.
void D3D12HDR::LoadAssets()
{
// Create a root signature containing root constants for brightness information
// and the desired output curve as well as a SRV descriptor table pointing to the
// intermediate render targets.
{
CD3DX12_DESCRIPTOR_RANGE ranges[1];
ranges[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 2, 0);
CD3DX12_ROOT_PARAMETER rootParameters[2];
rootParameters[0].InitAsConstants(4, 0);
rootParameters[1].InitAsDescriptorTable(1, &ranges[0]);
D3D12_STATIC_SAMPLER_DESC sampler = {};
sampler.Filter = D3D12_FILTER_MIN_MAG_MIP_POINT;
sampler.AddressU = D3D12_TEXTURE_ADDRESS_MODE_BORDER;
sampler.AddressV = D3D12_TEXTURE_ADDRESS_MODE_BORDER;
sampler.AddressW = D3D12_TEXTURE_ADDRESS_MODE_BORDER;
sampler.ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER;
sampler.MaxLOD = D3D12_FLOAT32_MAX;
sampler.ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
// Allow input layout and deny uneccessary access to certain pipeline stages.
D3D12_ROOT_SIGNATURE_FLAGS rootSignatureFlags =
D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS;
CD3DX12_ROOT_SIGNATURE_DESC rootSignatureDesc;
rootSignatureDesc.Init(_countof(rootParameters), rootParameters, 1, &sampler, rootSignatureFlags);
ComPtr<ID3DBlob> signature;
ComPtr<ID3DBlob> error;
ThrowIfFailed(D3D12SerializeRootSignature(&rootSignatureDesc, D3D_ROOT_SIGNATURE_VERSION_1, &signature, &error));
ThrowIfFailed(m_device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), IID_PPV_ARGS(&m_rootSignature)));
}
// Create the pipeline state objects for the different views and render target formats
// as well as the intermediate blend step.
{
// Create the pipeline state for the scene geometry.
D3D12_INPUT_ELEMENT_DESC gradientElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, D3D12_APPEND_ALIGNED_ELEMENT, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
// Describe and create the graphics pipeline state objects (PSO).
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.InputLayout = { gradientElementDescs, _countof(gradientElementDescs) };
psoDesc.pRootSignature = m_rootSignature.Get();
psoDesc.VS = CD3DX12_SHADER_BYTECODE(g_gradientVS, sizeof(g_gradientVS));
psoDesc.PS = CD3DX12_SHADER_BYTECODE(g_gradientPS, sizeof(g_gradientPS));
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3D12_DEFAULT);
psoDesc.BlendState = CD3DX12_BLEND_DESC(D3D12_DEFAULT);
psoDesc.DepthStencilState.DepthEnable = FALSE;
psoDesc.DepthStencilState.StencilEnable = FALSE;
psoDesc.SampleMask = UINT_MAX;
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = m_intermediateRenderTargetFormat;
psoDesc.SampleDesc.Count = 1;
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineStates[GradientPSO])));
// Create pipeline state for the color space triangles.
D3D12_INPUT_ELEMENT_DESC colorElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, D3D12_APPEND_ALIGNED_ELEMENT, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
psoDesc.InputLayout = { colorElementDescs, _countof(colorElementDescs) };
psoDesc.VS = CD3DX12_SHADER_BYTECODE(g_paletteVS, sizeof(g_paletteVS));
psoDesc.PS = CD3DX12_SHADER_BYTECODE(g_palettePS, sizeof(g_palettePS));
psoDesc.RTVFormats[0] = m_intermediateRenderTargetFormat;
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineStates[PalettePSO])));
// Create pipeline states for the final blend step.
// There will be one for each swap chain format the sample supports.
D3D12_INPUT_ELEMENT_DESC quadElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, D3D12_APPEND_ALIGNED_ELEMENT, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
psoDesc.InputLayout = { quadElementDescs, _countof(quadElementDescs) };
psoDesc.VS = CD3DX12_SHADER_BYTECODE(g_presentVS, sizeof(g_presentVS));
psoDesc.PS = CD3DX12_SHADER_BYTECODE(g_presentPS, sizeof(g_presentPS));
psoDesc.RTVFormats[0] = m_swapChainFormats[_8];
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineStates[Present8bitPSO])));
psoDesc.RTVFormats[0] = m_swapChainFormats[_10];
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineStates[Present10bitPSO])));
psoDesc.RTVFormats[0] = m_swapChainFormats[_16];
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineStates[Present16bitPSO])));
}
// Create the command list.
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_commandAllocators[m_frameIndex].Get(), nullptr, IID_PPV_ARGS(&m_commandList)));
// Create the vertex buffer.
{
// Create geometry for the different sections of the render target.
GradientVertex gradientVertices[] =
{
// Upper strip. SDR Gradient from [0,1].
{ { -1.0f, 0.45f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
{ { -1.0f, 0.55f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
{ { 0.0f, 0.45f, 0.0f }, { 1.0f, 1.0f, 1.0f } },
{ { 0.0f, 0.55f, 0.0f }, { 1.0f, 1.0f, 1.0f } },
// Lower strip. HDR Gradient from [0,9]. Perceptually, 9.0 is about 3 times as bright as 1.0. (See gradientPS.hlsl.)
{ { -1.0f, -0.55f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
{ { -1.0f, -0.45f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
{ { 0.0f, -0.55f, 0.0f }, { 3.0f, 3.0f, 3.0f } },
{ { 0.0f, -0.45f, 0.0f }, { 3.0f, 3.0f, 3.0f } },
};
// The vertices for the color space triangles are dependent on the size of the
// render target and will not be loaded at this time. We'll leave a gap in the
// buffer that will be filled in later.
const UINT triangleVerticesSize = sizeof(TrianglesVertex) * TrianglesVertexCount;
m_updateVertexBuffer = true;
PresentVertex presentVertices[] =
{
// 1 triangle that fills the entire render target.
{ { -1.0f, -3.0f, 0.0f }, { 0.0f, 2.0f } }, // Bottom left
{ { -1.0f, 1.0f, 0.0f }, { 0.0f, 0.0f } }, // Top left
{ { 3.0f, 1.0f, 0.0f }, { 2.0f, 0.0f } }, // Top right
};
const UINT vertexBufferSize = sizeof(gradientVertices) + triangleVerticesSize + sizeof(presentVertices);
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER,
nullptr,
IID_PPV_ARGS(&m_vertexBuffer)));
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&m_vertexBufferUpload)));
// Copy data to the intermediate upload heap. It will be uploaded to the
// DEFAULT buffer when the color space triangle vertices are updated.
UINT8* mappedUploadHeap = nullptr;
ThrowIfFailed(m_vertexBufferUpload->Map(0, &CD3DX12_RANGE(0, 0), reinterpret_cast<void**>(&mappedUploadHeap)));
memcpy(mappedUploadHeap, gradientVertices, sizeof(gradientVertices));
mappedUploadHeap += sizeof(gradientVertices) + triangleVerticesSize;
memcpy(mappedUploadHeap, presentVertices, sizeof(presentVertices));
m_vertexBufferUpload->Unmap(0, &CD3DX12_RANGE(0, 0));
// Initialize the vertex buffer views.
m_gradientVertexBufferView.BufferLocation = m_vertexBuffer->GetGPUVirtualAddress();
m_gradientVertexBufferView.StrideInBytes = sizeof(GradientVertex);
m_gradientVertexBufferView.SizeInBytes = sizeof(gradientVertices);
m_trianglesVertexBufferView.BufferLocation = m_gradientVertexBufferView.BufferLocation + m_gradientVertexBufferView.SizeInBytes;
m_trianglesVertexBufferView.StrideInBytes = sizeof(TrianglesVertex);
m_trianglesVertexBufferView.SizeInBytes = triangleVerticesSize;
m_presentVertexBufferView.BufferLocation = m_trianglesVertexBufferView.BufferLocation + m_trianglesVertexBufferView.SizeInBytes;
m_presentVertexBufferView.StrideInBytes = sizeof(PresentVertex);
m_presentVertexBufferView.SizeInBytes = sizeof(presentVertices);
}
LoadSizeDependentResources();
// Close the command list and execute it to begin the vertex buffer copy into
// the default heap.
ThrowIfFailed(m_commandList->Close());
ID3D12CommandList* ppCommandLists[] = { m_commandList.Get() };
m_commandQueue->ExecuteCommandLists(_countof(ppCommandLists), ppCommandLists);
// Create synchronization objects and wait until assets have been uploaded to the GPU.
{
ThrowIfFailed(m_device->CreateFence(m_fenceValues[m_frameIndex], D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_fence)));
m_fenceValues[m_frameIndex]++;
// Create an event handle to use for frame synchronization.
m_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (m_fenceEvent == nullptr)
{
ThrowIfFailed(HRESULT_FROM_WIN32(GetLastError()));
}
// 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.
WaitForGpu();
}
}
// Load the sample assets.
void D3D12Fullscreen::LoadAssets()
{
// Create a root signature consisting of a descriptor table with a single CBV.
{
CD3DX12_DESCRIPTOR_RANGE ranges[1];
CD3DX12_ROOT_PARAMETER rootParameters[1];
ranges[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_CBV, 1, 0);
rootParameters[0].InitAsDescriptorTable(1, &ranges[0], D3D12_SHADER_VISIBILITY_VERTEX);
// Allow input layout and deny uneccessary access to certain pipeline stages.
D3D12_ROOT_SIGNATURE_FLAGS rootSignatureFlags =
D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_PIXEL_SHADER_ROOT_ACCESS;
CD3DX12_ROOT_SIGNATURE_DESC rootSignatureDesc;
rootSignatureDesc.Init(_countof(rootParameters), rootParameters, 0, nullptr, rootSignatureFlags);
ComPtr<ID3DBlob> signature;
ComPtr<ID3DBlob> error;
ThrowIfFailed(D3D12SerializeRootSignature(&rootSignatureDesc, D3D_ROOT_SIGNATURE_VERSION_1, &signature, &error));
ThrowIfFailed(m_device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), IID_PPV_ARGS(&m_rootSignature)));
NAME_D3D12_OBJECT(m_rootSignature);
}
// Create the pipeline state, which includes compiling and loading shaders.
{
ComPtr<ID3DBlob> vertexShader;
ComPtr<ID3DBlob> pixelShader;
ComPtr<ID3DBlob> error;
#if defined(_DEBUG)
// Enable better shader debugging with the graphics debugging tools.
UINT compileFlags = D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION;
#else
UINT compileFlags = 0;
#endif
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"shaders.hlsl").c_str(), nullptr, nullptr, "VSMain", "vs_5_0", compileFlags, 0, &vertexShader, &error));
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"shaders.hlsl").c_str(), nullptr, nullptr, "PSMain", "ps_5_0", compileFlags, 0, &pixelShader, &error));
// Define the vertex input layout.
D3D12_INPUT_ELEMENT_DESC inputElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 }
};
// Describe and create the graphics pipeline state object (PSO).
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.InputLayout = { inputElementDescs, _countof(inputElementDescs) };
psoDesc.pRootSignature = m_rootSignature.Get();
psoDesc.VS = CD3DX12_SHADER_BYTECODE(vertexShader.Get());
psoDesc.PS = CD3DX12_SHADER_BYTECODE(pixelShader.Get());
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3D12_DEFAULT);
psoDesc.BlendState = CD3DX12_BLEND_DESC(D3D12_DEFAULT);
psoDesc.DepthStencilState.DepthEnable = FALSE;
psoDesc.DepthStencilState.StencilEnable = FALSE;
psoDesc.SampleMask = UINT_MAX;
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.SampleDesc.Count = 1;
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineState)));
NAME_D3D12_OBJECT(m_pipelineState);
}
// Create the command list.
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_commandAllocators[m_frameIndex].Get(), m_pipelineState.Get(), IID_PPV_ARGS(&m_commandList)));
NAME_D3D12_OBJECT(m_commandList);
LoadSizeDependentResources();
// Create/update the vertex buffer.
{
// Define the geometry for a thin quad that will animate across the screen.
const float x = QuadWidth / 2.0f;
const float y = QuadHeight / 2.0f;
Vertex quadVertices[] =
{
{ { -x, -y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { -x, y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { x, -y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { x, y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } }
};
const UINT vertexBufferSize = sizeof(quadVertices);
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_COPY_DEST,
nullptr,
IID_PPV_ARGS(&m_vertexBuffer)));
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&m_vertexBufferUpload)));
NAME_D3D12_OBJECT(m_vertexBuffer);
// Copy data to the intermediate upload heap and then schedule a copy
// from the upload heap to the vertex buffer.
UINT8* pVertexDataBegin;
CD3DX12_RANGE readRange(0, 0); // We do not intend to read from this resource on the CPU.
ThrowIfFailed(m_vertexBufferUpload->Map(0, &readRange, reinterpret_cast<void**>(&pVertexDataBegin)));
memcpy(pVertexDataBegin, quadVertices, sizeof(quadVertices));
m_vertexBufferUpload->Unmap(0, nullptr);
m_commandList->CopyBufferRegion(m_vertexBuffer.Get(), 0, m_vertexBufferUpload.Get(), 0, vertexBufferSize);
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_vertexBuffer.Get(), D3D12_RESOURCE_STATE_COPY_DEST, D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER));
// Initialize the vertex buffer views.
m_vertexBufferView.BufferLocation = m_vertexBuffer->GetGPUVirtualAddress();
m_vertexBufferView.StrideInBytes = sizeof(Vertex);
m_vertexBufferView.SizeInBytes = vertexBufferSize;
}
// Create the constant buffer.
{
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(sizeof(SceneConstantBuffer) * FrameCount),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&m_constantBuffer)));
NAME_D3D12_OBJECT(m_constantBuffer);
// Describe and create constant buffer views.
D3D12_CONSTANT_BUFFER_VIEW_DESC cbvDesc = {};
cbvDesc.BufferLocation = m_constantBuffer->GetGPUVirtualAddress();
cbvDesc.SizeInBytes = sizeof(SceneConstantBuffer);
CD3DX12_CPU_DESCRIPTOR_HANDLE cpuHandle(m_cbvHeap->GetCPUDescriptorHandleForHeapStart());
for (UINT n = 0; n < FrameCount; n++)
{
m_device->CreateConstantBufferView(&cbvDesc, cpuHandle);
cbvDesc.BufferLocation += sizeof(SceneConstantBuffer);
cpuHandle.Offset(m_cbvDescriptorSize);
}
// Initialize and map the constant buffers. We don't unmap this until the
// app closes. Keeping things mapped for the lifetime of the resource is okay.
ZeroMemory(&m_constantBufferData, sizeof(m_constantBufferData));
CD3DX12_RANGE readRange(0, 0); // We do not intend to read from this resource on the CPU.
ThrowIfFailed(m_constantBuffer->Map(0, &readRange, reinterpret_cast<void**>(&m_pCbvDataBegin)));
memcpy(m_pCbvDataBegin, &m_constantBufferData, sizeof(m_constantBufferData));
}
// Close the command list and execute it to begin the vertex buffer copy into
// the default heap.
ThrowIfFailed(m_commandList->Close());
ID3D12CommandList* ppCommandLists[] = { m_commandList.Get() };
m_commandQueue->ExecuteCommandLists(_countof(ppCommandLists), ppCommandLists);
// Create synchronization objects and wait until assets have been uploaded to the GPU.
{
ThrowIfFailed(m_device->CreateFence(m_fenceValues[m_frameIndex], D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_fence)));
m_fenceValues[m_frameIndex]++;
// Create an event handle to use for frame synchronization.
m_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (m_fenceEvent == nullptr)
{
ThrowIfFailed(HRESULT_FROM_WIN32(GetLastError()));
}
// 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.
WaitForGpu();
}
}
// Load the sample assets.
void D3D12Fullscreen::LoadAssets()
{
D3D12_FEATURE_DATA_ROOT_SIGNATURE featureData = {};
// This is the highest version the sample supports. If CheckFeatureSupport succeeds, the HighestVersion returned will not be greater than this.
featureData.HighestVersion = D3D_ROOT_SIGNATURE_VERSION_1_1;
if (FAILED(m_device->CheckFeatureSupport(D3D12_FEATURE_ROOT_SIGNATURE, &featureData, sizeof(featureData))))
{
featureData.HighestVersion = D3D_ROOT_SIGNATURE_VERSION_1_0;
}
// Create a root signature consisting of a descriptor table with a single CBV.
{
CD3DX12_DESCRIPTOR_RANGE1 ranges[1];
CD3DX12_ROOT_PARAMETER1 rootParameters[1];
ranges[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_CBV, 1, 0, 0, D3D12_DESCRIPTOR_RANGE_FLAG_DATA_STATIC);
rootParameters[0].InitAsDescriptorTable(1, &ranges[0], D3D12_SHADER_VISIBILITY_VERTEX);
// Allow input layout and deny uneccessary access to certain pipeline stages.
D3D12_ROOT_SIGNATURE_FLAGS rootSignatureFlags =
D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_PIXEL_SHADER_ROOT_ACCESS;
CD3DX12_VERSIONED_ROOT_SIGNATURE_DESC rootSignatureDesc;
rootSignatureDesc.Init_1_1(_countof(rootParameters), rootParameters, 0, nullptr, rootSignatureFlags);
ComPtr<ID3DBlob> signature;
ComPtr<ID3DBlob> error;
ThrowIfFailed(D3DX12SerializeVersionedRootSignature(&rootSignatureDesc, featureData.HighestVersion, &signature, &error));
ThrowIfFailed(m_device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), IID_PPV_ARGS(&m_sceneRootSignature)));
NAME_D3D12_OBJECT(m_sceneRootSignature);
}
// Create a root signature consisting of a descriptor table with a SRV and a sampler.
{
CD3DX12_DESCRIPTOR_RANGE1 ranges[1];
CD3DX12_ROOT_PARAMETER1 rootParameters[1];
// We don't modify the SRV in the post-processing command list after
// SetGraphicsRootDescriptorTable is executed on the GPU so we can use the default
// range behavior: D3D12_DESCRIPTOR_RANGE_FLAG_DATA_STATIC_WHILE_SET_AT_EXECUTE
ranges[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
rootParameters[0].InitAsDescriptorTable(1, &ranges[0], D3D12_SHADER_VISIBILITY_PIXEL);
// Allow input layout and pixel shader access and deny uneccessary access to certain pipeline stages.
D3D12_ROOT_SIGNATURE_FLAGS rootSignatureFlags =
D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS;
// Create a sampler.
D3D12_STATIC_SAMPLER_DESC sampler = {};
sampler.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
sampler.AddressU = D3D12_TEXTURE_ADDRESS_MODE_BORDER;
sampler.AddressV = D3D12_TEXTURE_ADDRESS_MODE_BORDER;
sampler.AddressW = D3D12_TEXTURE_ADDRESS_MODE_BORDER;
sampler.MipLODBias = 0;
sampler.MaxAnisotropy = 0;
sampler.ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER;
sampler.BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
sampler.MinLOD = 0.0f;
sampler.MaxLOD = D3D12_FLOAT32_MAX;
sampler.ShaderRegister = 0;
sampler.RegisterSpace = 0;
sampler.ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
CD3DX12_VERSIONED_ROOT_SIGNATURE_DESC rootSignatureDesc;
rootSignatureDesc.Init_1_1(_countof(rootParameters), rootParameters, 1, &sampler, rootSignatureFlags);
ComPtr<ID3DBlob> signature;
ComPtr<ID3DBlob> error;
ThrowIfFailed(D3DX12SerializeVersionedRootSignature(&rootSignatureDesc, featureData.HighestVersion, &signature, &error));
ThrowIfFailed(m_device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), IID_PPV_ARGS(&m_postRootSignature)));
NAME_D3D12_OBJECT(m_postRootSignature);
}
// Create the pipeline state, which includes compiling and loading shaders.
{
ComPtr<ID3DBlob> sceneVertexShader;
ComPtr<ID3DBlob> scenePixelShader;
ComPtr<ID3DBlob> postVertexShader;
ComPtr<ID3DBlob> postPixelShader;
ComPtr<ID3DBlob> error;
#if defined(_DEBUG)
// Enable better shader debugging with the graphics debugging tools.
UINT compileFlags = D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION;
#else
UINT compileFlags = 0;
#endif
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"sceneShaders.hlsl").c_str(), nullptr, nullptr, "VSMain", "vs_5_0", compileFlags, 0, &sceneVertexShader, &error));
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"sceneShaders.hlsl").c_str(), nullptr, nullptr, "PSMain", "ps_5_0", compileFlags, 0, &scenePixelShader, &error));
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"postShaders.hlsl").c_str(), nullptr, nullptr, "VSMain", "vs_5_0", compileFlags, 0, &postVertexShader, &error));
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"postShaders.hlsl").c_str(), nullptr, nullptr, "PSMain", "ps_5_0", compileFlags, 0, &postPixelShader, &error));
// Define the vertex input layouts.
D3D12_INPUT_ELEMENT_DESC inputElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 }
};
D3D12_INPUT_ELEMENT_DESC scaleInputElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, D3D12_APPEND_ALIGNED_ELEMENT, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 }
};
// Describe and create the graphics pipeline state objects (PSOs).
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.InputLayout = { inputElementDescs, _countof(inputElementDescs) };
psoDesc.pRootSignature = m_sceneRootSignature.Get();
psoDesc.VS = CD3DX12_SHADER_BYTECODE(sceneVertexShader.Get());
psoDesc.PS = CD3DX12_SHADER_BYTECODE(scenePixelShader.Get());
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3D12_DEFAULT);
psoDesc.BlendState = CD3DX12_BLEND_DESC(D3D12_DEFAULT);
psoDesc.DepthStencilState.DepthEnable = FALSE;
psoDesc.DepthStencilState.StencilEnable = FALSE;
psoDesc.SampleMask = UINT_MAX;
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.SampleDesc.Count = 1;
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_scenePipelineState)));
NAME_D3D12_OBJECT(m_scenePipelineState);
psoDesc.InputLayout = { scaleInputElementDescs, _countof(scaleInputElementDescs) };
psoDesc.pRootSignature = m_postRootSignature.Get();
psoDesc.VS = CD3DX12_SHADER_BYTECODE(postVertexShader.Get());
psoDesc.PS = CD3DX12_SHADER_BYTECODE(postPixelShader.Get());
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_postPipelineState)));
NAME_D3D12_OBJECT(m_postPipelineState);
}
// Single-use command allocator and command list for creating resources.
ComPtr<ID3D12CommandAllocator> commandAllocator;
ComPtr<ID3D12GraphicsCommandList> commandList;
ThrowIfFailed(m_device->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&commandAllocator)));
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, commandAllocator.Get(), nullptr, IID_PPV_ARGS(&commandList)));
// Create the command lists.
{
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_sceneCommandAllocators[m_frameIndex].Get(), m_scenePipelineState.Get(), IID_PPV_ARGS(&m_sceneCommandList)));
NAME_D3D12_OBJECT(m_sceneCommandList);
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_postCommandAllocators[m_frameIndex].Get(), m_postPipelineState.Get(), IID_PPV_ARGS(&m_postCommandList)));
NAME_D3D12_OBJECT(m_postCommandList);
// Close the command lists.
ThrowIfFailed(m_sceneCommandList->Close());
ThrowIfFailed(m_postCommandList->Close());
}
LoadSizeDependentResources();
LoadSceneResolutionDependentResources();
// Create/update the vertex buffer.
ComPtr<ID3D12Resource> sceneVertexBufferUpload;
{
// Define the geometry for a thin quad that will animate across the screen.
const float x = QuadWidth / 2.0f;
const float y = QuadHeight / 2.0f;
SceneVertex quadVertices[] =
{
{ { -x, -y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { -x, y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { x, -y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { x, y, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } }
};
const UINT vertexBufferSize = sizeof(quadVertices);
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_COPY_DEST,
nullptr,
IID_PPV_ARGS(&m_sceneVertexBuffer)));
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&sceneVertexBufferUpload)));
NAME_D3D12_OBJECT(m_sceneVertexBuffer);
// Copy data to the intermediate upload heap and then schedule a copy
// from the upload heap to the vertex buffer.
UINT8* pVertexDataBegin;
CD3DX12_RANGE readRange(0, 0); // We do not intend to read from this resource on the CPU.
ThrowIfFailed(sceneVertexBufferUpload->Map(0, &readRange, reinterpret_cast<void**>(&pVertexDataBegin)));
memcpy(pVertexDataBegin, quadVertices, sizeof(quadVertices));
sceneVertexBufferUpload->Unmap(0, nullptr);
commandList->CopyBufferRegion(m_sceneVertexBuffer.Get(), 0, sceneVertexBufferUpload.Get(), 0, vertexBufferSize);
commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_sceneVertexBuffer.Get(), D3D12_RESOURCE_STATE_COPY_DEST, D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER));
// Initialize the vertex buffer views.
m_sceneVertexBufferView.BufferLocation = m_sceneVertexBuffer->GetGPUVirtualAddress();
m_sceneVertexBufferView.StrideInBytes = sizeof(SceneVertex);
m_sceneVertexBufferView.SizeInBytes = vertexBufferSize;
}
// Create/update the fullscreen quad vertex buffer.
ComPtr<ID3D12Resource> postVertexBufferUpload;
{
// Define the geometry for a fullscreen quad.
PostVertex quadVertices[] =
{
{ { -1.0f, -1.0f, 0.0f, 1.0f }, { 0.0f, 0.0f } }, // Bottom left.
{ { -1.0f, 1.0f, 0.0f, 1.0f }, { 0.0f, 1.0f } }, // Top left.
{ { 1.0f, -1.0f, 0.0f, 1.0f }, { 1.0f, 0.0f } }, // Bottom right.
{ { 1.0f, 1.0f, 0.0f, 1.0f }, { 1.0f, 1.0f } } // Top right.
};
const UINT vertexBufferSize = sizeof(quadVertices);
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_COPY_DEST,
nullptr,
IID_PPV_ARGS(&m_postVertexBuffer)));
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(vertexBufferSize),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&postVertexBufferUpload)));
NAME_D3D12_OBJECT(m_postVertexBuffer);
// Copy data to the intermediate upload heap and then schedule a copy
// from the upload heap to the vertex buffer.
UINT8* pVertexDataBegin;
CD3DX12_RANGE readRange(0, 0); // We do not intend to read from this resource on the CPU.
ThrowIfFailed(postVertexBufferUpload->Map(0, &readRange, reinterpret_cast<void**>(&pVertexDataBegin)));
memcpy(pVertexDataBegin, quadVertices, sizeof(quadVertices));
postVertexBufferUpload->Unmap(0, nullptr);
commandList->CopyBufferRegion(m_postVertexBuffer.Get(), 0, postVertexBufferUpload.Get(), 0, vertexBufferSize);
commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_postVertexBuffer.Get(), D3D12_RESOURCE_STATE_COPY_DEST, D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER));
// Initialize the vertex buffer views.
m_postVertexBufferView.BufferLocation = m_postVertexBuffer->GetGPUVirtualAddress();
m_postVertexBufferView.StrideInBytes = sizeof(PostVertex);
m_postVertexBufferView.SizeInBytes = vertexBufferSize;
}
// Create the constant buffer.
{
ThrowIfFailed(m_device->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(sizeof(SceneConstantBuffer) * FrameCount),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&m_sceneConstantBuffer)));
NAME_D3D12_OBJECT(m_sceneConstantBuffer);
// Describe and create constant buffer views.
D3D12_CONSTANT_BUFFER_VIEW_DESC cbvDesc = {};
cbvDesc.BufferLocation = m_sceneConstantBuffer->GetGPUVirtualAddress();
cbvDesc.SizeInBytes = sizeof(SceneConstantBuffer);
CD3DX12_CPU_DESCRIPTOR_HANDLE cpuHandle(m_cbvSrvHeap->GetCPUDescriptorHandleForHeapStart(), 1, m_cbvSrvDescriptorSize);
for (UINT n = 0; n < FrameCount; n++)
{
m_device->CreateConstantBufferView(&cbvDesc, cpuHandle);
cbvDesc.BufferLocation += sizeof(SceneConstantBuffer);
cpuHandle.Offset(m_cbvSrvDescriptorSize);
}
// Map and initialize the constant buffer. We don't unmap this until the
// app closes. Keeping things mapped for the lifetime of the resource is okay.
CD3DX12_RANGE readRange(0, 0); // We do not intend to read from this resource on the CPU.
ThrowIfFailed(m_sceneConstantBuffer->Map(0, &readRange, reinterpret_cast<void**>(&m_pCbvDataBegin)));
memcpy(m_pCbvDataBegin, &m_sceneConstantBufferData, sizeof(m_sceneConstantBufferData));
}
// Close the resource creation command list and execute it to begin the vertex buffer copy into
// the default heap.
ThrowIfFailed(commandList->Close());
ID3D12CommandList* ppCommandLists[] = { commandList.Get() };
m_commandQueue->ExecuteCommandLists(_countof(ppCommandLists), ppCommandLists);
// Create synchronization objects and wait until assets have been uploaded to the GPU.
{
ThrowIfFailed(m_device->CreateFence(m_fenceValues[m_frameIndex], D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_fence)));
m_fenceValues[m_frameIndex]++;
// Create an event handle to use for frame synchronization.
m_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (m_fenceEvent == nullptr)
{
ThrowIfFailed(HRESULT_FROM_WIN32(GetLastError()));
}
// Wait for the command list to execute before continuing.
WaitForGpu();
}
}
// Load the sample assets.
void D3D12Fullscreen::LoadAssets()
{
// Create an empty root signature.
{
CD3DX12_ROOT_SIGNATURE_DESC rootSignatureDesc;
rootSignatureDesc.Init(0, nullptr, 0, nullptr, D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT);
ComPtr<ID3DBlob> signature;
ComPtr<ID3DBlob> error;
ThrowIfFailed(D3D12SerializeRootSignature(&rootSignatureDesc, D3D_ROOT_SIGNATURE_VERSION_1, &signature, &error));
ThrowIfFailed(m_device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), IID_PPV_ARGS(&m_rootSignature)));
NAME_D3D12_OBJECT(m_rootSignature);
}
// Create the pipeline state, which includes compiling and loading shaders.
{
ComPtr<ID3DBlob> vertexShader;
ComPtr<ID3DBlob> pixelShader;
ComPtr<ID3DBlob> error;
#if defined(_DEBUG)
// Enable better shader debugging with the graphics debugging tools.
UINT compileFlags = D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION;
#else
UINT compileFlags = 0;
#endif
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"shaders.hlsl").c_str(), nullptr, nullptr, "VSMain", "vs_5_0", compileFlags, 0, &vertexShader, &error));
ThrowIfFailed(D3DCompileFromFile(GetAssetFullPath(L"shaders.hlsl").c_str(), nullptr, nullptr, "PSMain", "ps_5_0", compileFlags, 0, &pixelShader, &error));
// Define the vertex input layout.
D3D12_INPUT_ELEMENT_DESC inputElementDescs[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 }
};
// Describe and create the graphics pipeline state object (PSO).
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.InputLayout = { inputElementDescs, _countof(inputElementDescs) };
psoDesc.pRootSignature = m_rootSignature.Get();
psoDesc.VS = CD3DX12_SHADER_BYTECODE(vertexShader.Get());
psoDesc.PS = CD3DX12_SHADER_BYTECODE(pixelShader.Get());
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3D12_DEFAULT);
psoDesc.BlendState = CD3DX12_BLEND_DESC(D3D12_DEFAULT);
psoDesc.DepthStencilState.DepthEnable = FALSE;
psoDesc.DepthStencilState.StencilEnable = FALSE;
psoDesc.SampleMask = UINT_MAX;
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.SampleDesc.Count = 1;
ThrowIfFailed(m_device->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&m_pipelineState)));
NAME_D3D12_OBJECT(m_pipelineState);
}
// Create the command list.
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_commandAllocators[m_frameIndex].Get(), m_pipelineState.Get(), IID_PPV_ARGS(&m_commandList)));
NAME_D3D12_OBJECT(m_commandList);
LoadSizeDependentResources();
// Close the command list and execute it to begin the vertex buffer copy into
// the default heap.
ThrowIfFailed(m_commandList->Close());
ID3D12CommandList* ppCommandLists[] = { m_commandList.Get() };
m_commandQueue->ExecuteCommandLists(_countof(ppCommandLists), ppCommandLists);
// Create synchronization objects and wait until assets have been uploaded to the GPU.
{
ThrowIfFailed(m_device->CreateFence(m_fenceValues[m_frameIndex], D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_fence)));
m_fenceValues[m_frameIndex]++;
// Create an event handle to use for frame synchronization.
m_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (m_fenceEvent == nullptr)
{
ThrowIfFailed(HRESULT_FROM_WIN32(GetLastError()));
}
// 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.
WaitForGpu();
}
}
