void Draw()
{
mFrameCount++;
// Get current RTV descriptor
auto descHandleRtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
D3D12_CPU_DESCRIPTOR_HANDLE descHandleRtv = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
descHandleRtv.ptr += ((mFrameCount - 1) % BUFFER_COUNT) * descHandleRtvStep;
// Get current swap chain
ID3D12Resource* d3dBuffer = mD3DBuffer[(mFrameCount - 1) % BUFFER_COUNT].Get();
// Barrier Present -> RenderTarget
setResourceBarrier(mCmdList.Get(), d3dBuffer, D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET);
// Viewport & Scissor
D3D12_VIEWPORT viewport = {};
viewport.Width = (float)mBufferWidth;
viewport.Height = (float)mBufferHeight;
mCmdList->RSSetViewports(1, &viewport);
D3D12_RECT scissor = {};
scissor.right = (LONG)mBufferWidth;
scissor.bottom = (LONG)mBufferHeight;
mCmdList->RSSetScissorRects(1, &scissor);
// Clear
{
auto saturate = [](float a) { return a < 0 ? 0 : a > 1 ? 1 : a; };
float clearColor[4];
static float h = 0.0f;
h += 0.02f;
if (h >= 1) h = 0.0f;
clearColor[0] = saturate(std::abs(h * 6.0f - 3.0f) - 1.0f);
clearColor[1] = saturate(2.0f - std::abs(h * 6.0f - 2.0f));
clearColor[2] = saturate(2.0f - std::abs(h * 6.0f - 4.0f));
mCmdList->ClearRenderTargetView(descHandleRtv, clearColor, 0, nullptr);
}
mCmdList->OMSetRenderTargets(1, &descHandleRtv, true, nullptr);
// Draw
{
mCmdList->SetGraphicsRootSignature(mRootSignature.Get());
mCmdList->SetPipelineState(mPso.Get());
mCmdList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
mCmdList->IASetVertexBuffers(0, 1, &mVBView);
mCmdList->IASetIndexBuffer(&mIBView);
mCmdList->DrawIndexedInstanced(6, 1, 0, 0, 0);
}
// Barrier RenderTarget -> Present
setResourceBarrier(mCmdList.Get(), d3dBuffer, D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT);
// Exec
CHK(mCmdList->Close());
ID3D12CommandList* const cmdList = mCmdList.Get();
mCmdQueue->ExecuteCommandLists(1, &cmdList);
// Present
CHK(mSwapChain->Present(1, 0));
// Set queue flushed event
CHK(mFence->SetEventOnCompletion(mFrameCount, mFenceEveneHandle));
// Wait for queue flushed
// This code would occur CPU stall!
CHK(mCmdQueue->Signal(mFence.Get(), mFrameCount));
DWORD wait = WaitForSingleObject(mFenceEveneHandle, 10000);
if (wait != WAIT_OBJECT_0)
throw runtime_error("Failed WaitForSingleObject().");
CHK(mCmdAlloc->Reset());
CHK(mCmdList->Reset(mCmdAlloc.Get(), nullptr));
}
void Draw()
{
mFrameCount++;
// Get current RTV descriptor
auto descHandleRtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
D3D12_CPU_DESCRIPTOR_HANDLE descHandleRtv = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
descHandleRtv.ptr += ((mFrameCount - 1) % BUFFER_COUNT) * descHandleRtvStep;
// Get current swap chain
ID3D12Resource* d3dBuffer = mD3DBuffer[(mFrameCount - 1) % BUFFER_COUNT].Get();
// Get DSV
auto descHandleDsv = mDescHeapDsv->GetCPUDescriptorHandleForHeapStart();
// Barrier SwapChain Present -> RenderTarget
setResourceBarrier(mCmdList.Get(), d3dBuffer, D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET);
// Barrier DepthTexture PixelShaderResource -> Depth
setResourceBarrier(mCmdList.Get(), mDB.Get(), D3D12_RESOURCE_STATE_DEPTH_READ, D3D12_RESOURCE_STATE_DEPTH_WRITE);
// Viewport & Scissor
D3D12_VIEWPORT viewport = {};
viewport.Width = (float)mBufferWidth;
viewport.Height = (float)mBufferHeight;
viewport.MinDepth = 0.0f;
viewport.MaxDepth = 1.0f;
mCmdList->RSSetViewports(1, &viewport);
D3D12_RECT scissor = {};
scissor.right = (LONG)mBufferWidth;
scissor.bottom = (LONG)mBufferHeight;
mCmdList->RSSetScissorRects(1, &scissor);
// Clear DepthTexture
mCmdList->ClearDepthStencilView(descHandleDsv, D3D12_CLEAR_FLAG_DEPTH, 1.0f, 0, 0, nullptr);
// Clear
{
float clearColor[4] = { 0.1f, 0.2f, 0.3f, 1.0f };
mCmdList->ClearRenderTargetView(descHandleRtv, clearColor, 0, nullptr);
}
// Draw
mCmdList->SetGraphicsRootSignature(mRootSignature.Get());
ID3D12DescriptorHeap* descHeaps[] = { mDescHeapCbvSrvUav.Get(), mDescHeapSampler.Get() };
mCmdList->SetDescriptorHeaps(ARRAYSIZE(descHeaps), descHeaps);
{
mCmdList->SetPipelineState(mPso.Get());
mCmdList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
mCmdList->IASetVertexBuffers(0, 1, &mVBView);
mCmdList->IASetIndexBuffer(&mIBView);
mCmdList->OMSetRenderTargets(0, nullptr, false, &descHandleDsv);
mCmdList->DrawIndexedInstanced(6, 1, 0, 0, 0);
}
// Barrier DepthTexture Depth -> PixelShaderResource
setResourceBarrier(mCmdList.Get(), mDB.Get(), D3D12_RESOURCE_STATE_DEPTH_WRITE, D3D12_RESOURCE_STATE_DEPTH_READ);
// Draw Depth
{
mCmdList->SetGraphicsRootDescriptorTable(0, mDescHeapCbvSrvUav->GetGPUDescriptorHandleForHeapStart());
mCmdList->SetGraphicsRootDescriptorTable(1, mDescHeapSampler->GetGPUDescriptorHandleForHeapStart());
mCmdList->SetPipelineState(mPsoDrawDepth.Get());
mCmdList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
mCmdList->IASetVertexBuffers(0, 0, nullptr);
mCmdList->IASetIndexBuffer(nullptr);
mCmdList->OMSetRenderTargets(1, &descHandleRtv, true, nullptr);
mCmdList->DrawInstanced(4, 1, 0, 0);
}
// Barrier RenderTarget -> Present
setResourceBarrier(mCmdList.Get(), d3dBuffer, D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT);
// Exec
CHK(mCmdList->Close());
ID3D12CommandList* const cmdList = mCmdList.Get();
mCmdQueue->ExecuteCommandLists(1, &cmdList);
// Present
CHK(mSwapChain->Present(1, 0));
// Set queue flushed event
CHK(mFence->SetEventOnCompletion(mFrameCount, mFenceEveneHandle));
// Wait for queue flushed
// This code would occur CPU stall!
CHK(mCmdQueue->Signal(mFence.Get(), mFrameCount));
DWORD wait = WaitForSingleObject(mFenceEveneHandle, 10000);
if (wait != WAIT_OBJECT_0)
throw runtime_error("Failed WaitForSingleObject().");
CHK(mCmdAlloc->Reset());
CHK(mCmdList->Reset(mCmdAlloc.Get(), nullptr));
}
D3D(int width, int height, HWND hWnd)
: mBufferWidth(width), mBufferHeight(height), mDev(nullptr)
{
{
#if _DEBUG
CHK(CreateDXGIFactory2(DXGI_CREATE_FACTORY_DEBUG, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#else
CHK(CreateDXGIFactory2(0, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#endif /* _DEBUG */
}
#if _DEBUG
ID3D12Debug* debug = nullptr;
D3D12GetDebugInterface(IID_PPV_ARGS(&debug));
if (debug)
{
debug->EnableDebugLayer();
debug->Release();
debug = nullptr;
}
#endif /* _DEBUG */
ID3D12Device* dev;
CHK(D3D12CreateDevice(
nullptr,
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&dev)));
mDev = dev;
CHK(mDev->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(mCmdAlloc.ReleaseAndGetAddressOf())));
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
CHK(mDev->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(mCmdQueue.ReleaseAndGetAddressOf())));
DXGI_SWAP_CHAIN_DESC1 scDesc = {};
scDesc.Width = width;
scDesc.Height = height;
scDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
scDesc.SampleDesc.Count = 1;
scDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
scDesc.BufferCount = BUFFER_COUNT;
scDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
CHK(mDxgiFactory->CreateSwapChainForHwnd(mCmdQueue.Get(), hWnd, &scDesc, nullptr, nullptr, mSwapChain.ReleaseAndGetAddressOf()));
CHK(mDev->CreateCommandList(
0,
D3D12_COMMAND_LIST_TYPE_DIRECT,
mCmdAlloc.Get(),
nullptr,
IID_PPV_ARGS(mCmdList.ReleaseAndGetAddressOf())));
CHK(mDev->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(mFence.ReleaseAndGetAddressOf())));
mFenceEveneHandle = CreateEvent(nullptr, FALSE, FALSE, nullptr);
for (int i = 0; i < BUFFER_COUNT; i++)
{
CHK(mSwapChain->GetBuffer(i, IID_PPV_ARGS(mD3DBuffer[i].ReleaseAndGetAddressOf())));
mD3DBuffer[i]->SetName(L"SwapChain_Buffer");
}
{
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapRtv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_DSV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapDsv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
desc.NumDescriptors = 100;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapCbvSrvUav.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER;
desc.NumDescriptors = 10;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapSampler.ReleaseAndGetAddressOf())));
}
auto rtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
for (auto i = 0u; i < BUFFER_COUNT; i++)
{
auto d = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
d.ptr += i * rtvStep;
mDev->CreateRenderTargetView(mD3DBuffer[i].Get(), nullptr, d);
}
{
CD3DX12_DESCRIPTOR_RANGE descRange1, descRange2;
descRange1.Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
descRange2.Init(D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER, 1, 0);
CD3DX12_ROOT_PARAMETER rootParam[2];
rootParam[0].InitAsDescriptorTable(1, &descRange1);
rootParam[1].InitAsDescriptorTable(1, &descRange2);
ID3D10Blob *sig, *info;
auto rootSigDesc = D3D12_ROOT_SIGNATURE_DESC();
rootSigDesc.NumParameters = 2;
rootSigDesc.NumStaticSamplers = 0;
rootSigDesc.pParameters = rootParam;
rootSigDesc.pStaticSamplers = nullptr;
rootSigDesc.Flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT;
CHK(D3D12SerializeRootSignature(&rootSigDesc, D3D_ROOT_SIGNATURE_VERSION_1, &sig, &info));
mDev->CreateRootSignature(
0,
sig->GetBufferPointer(),
sig->GetBufferSize(),
IID_PPV_ARGS(mRootSignature.ReleaseAndGetAddressOf()));
sig->Release();
}
ID3D10Blob *vs, *ps, *vsDrawDepth, *psDrawDepth;
{
ID3D10Blob *info;
UINT flag = 0;
#if _DEBUG
flag |= D3DCOMPILE_DEBUG;
#endif /* _DEBUG */
CHK(D3DCompileFromFile(L"DepthBuffer.hlsl", nullptr, nullptr, "VSMain", "vs_5_0", flag, 0, &vs, &info));
CHK(D3DCompileFromFile(L"DepthBuffer.hlsl", nullptr, nullptr, "PSMain", "ps_5_0", flag, 0, &ps, &info));
CHK(D3DCompileFromFile(L"DepthBuffer.hlsl", nullptr, nullptr, "VSDrawDepth", "vs_5_0", flag, 0, &vsDrawDepth, &info));
CHK(D3DCompileFromFile(L"DepthBuffer.hlsl", nullptr, nullptr, "PSDrawDepth", "ps_5_0", flag, 0, &psDrawDepth, &info));
}
D3D12_INPUT_ELEMENT_DESC inputLayout[] = {
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 }
};
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.InputLayout.NumElements = 1;
psoDesc.InputLayout.pInputElementDescs = inputLayout;
psoDesc.IBStripCutValue = D3D12_INDEX_BUFFER_STRIP_CUT_VALUE_DISABLED;
psoDesc.pRootSignature = mRootSignature.Get();
psoDesc.VS.pShaderBytecode = vs->GetBufferPointer();
psoDesc.VS.BytecodeLength = vs->GetBufferSize();
psoDesc.PS.pShaderBytecode = ps->GetBufferPointer();
psoDesc.PS.BytecodeLength = ps->GetBufferSize();
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(CCCD3DX12_DEFAULT());
psoDesc.BlendState = CD3DX12_BLEND_DESC(CCCD3DX12_DEFAULT());
psoDesc.DepthStencilState.DepthEnable = true;
psoDesc.DepthStencilState.DepthFunc = D3D12_COMPARISON_FUNC_LESS_EQUAL;
psoDesc.DepthStencilState.DepthWriteMask = D3D12_DEPTH_WRITE_MASK_ALL;
psoDesc.DSVFormat = DXGI_FORMAT_D32_FLOAT;
psoDesc.DepthStencilState.StencilEnable = false;
psoDesc.SampleMask = UINT_MAX;
psoDesc.NumRenderTargets = 0;
psoDesc.SampleDesc.Count = 1;
CHK(mDev->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(mPso.ReleaseAndGetAddressOf())));
vs->Release();
ps->Release();
psoDesc.InputLayout.NumElements = 0;
psoDesc.VS.pShaderBytecode = vsDrawDepth->GetBufferPointer();
psoDesc.VS.BytecodeLength = vsDrawDepth->GetBufferSize();
psoDesc.PS.pShaderBytecode = psDrawDepth->GetBufferPointer();
psoDesc.PS.BytecodeLength = psDrawDepth->GetBufferSize();
psoDesc.DepthStencilState.DepthEnable = false;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
CHK(mDev->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(mPsoDrawDepth.ReleaseAndGetAddressOf())));
vsDrawDepth->Release();
psDrawDepth->Release();
struct float3 {
float f[3];
};
float3 vbData[4] = {
{ -0.7f, 0.7f, 0.9f },
{ 0.7f, 0.7f, 0.6f },
{ -0.7f, -0.7f, 0.3f },
{ 0.7f, -0.7f, 0.0f }
};
unsigned short ibData[6] = { 0, 1, 2, 2, 1, 3 };
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(sizeof(vbData) + sizeof(ibData)),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mVB.ReleaseAndGetAddressOf())));
mVB->SetName(L"VertexBuffer");
char* vbUploadPtr = nullptr;
CHK(mVB->Map(0, nullptr, reinterpret_cast<void**>(&vbUploadPtr)));
memcpy_s(vbUploadPtr, sizeof(vbData), vbData, sizeof(vbData));
memcpy_s(vbUploadPtr + sizeof(vbData), sizeof(ibData), ibData, sizeof(ibData));
mVB->Unmap(0, nullptr);
mVBView.BufferLocation = mVB->GetGPUVirtualAddress();
mVBView.StrideInBytes = sizeof(float3);
mVBView.SizeInBytes = sizeof(vbData);
mIBView.BufferLocation = mVB->GetGPUVirtualAddress() + sizeof(vbData);
mIBView.Format = DXGI_FORMAT_R16_UINT;
mIBView.SizeInBytes = sizeof(ibData);
auto resourceDesc = CD3DX12_RESOURCE_DESC::Tex2D(
DXGI_FORMAT_R32_TYPELESS, mBufferWidth, mBufferHeight, 1, 1, 1, 0, D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL,
D3D12_TEXTURE_LAYOUT_UNKNOWN, 0);
D3D12_CLEAR_VALUE dsvClearValue;
dsvClearValue.Format = DXGI_FORMAT_D32_FLOAT;
dsvClearValue.DepthStencil.Depth = 1.0f;
dsvClearValue.DepthStencil.Stencil = 0;
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT), // No need to read/write by CPU
D3D12_HEAP_FLAG_NONE,
&resourceDesc,
D3D12_RESOURCE_STATE_DEPTH_READ,
&dsvClearValue,
IID_PPV_ARGS(mDB.ReleaseAndGetAddressOf())));
mDB->SetName(L"DepthTexture");
D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
dsvDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2D;
dsvDesc.Format = DXGI_FORMAT_D32_FLOAT;
dsvDesc.Texture2D.MipSlice = 0;
dsvDesc.Flags = D3D12_DSV_FLAG_NONE;
mDev->CreateDepthStencilView(mDB.Get(), &dsvDesc, mDescHeapDsv->GetCPUDescriptorHandleForHeapStart());
D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
srvDesc.Format = DXGI_FORMAT_R32_FLOAT;
srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
srvDesc.Texture2D.MipLevels = 1;
srvDesc.Texture2D.MostDetailedMip = 0; // No MIP
srvDesc.Texture2D.PlaneSlice = 0;
srvDesc.Texture2D.ResourceMinLODClamp = 0.0f;
mDev->CreateShaderResourceView(mDB.Get(), &srvDesc, mDescHeapCbvSrvUav->GetCPUDescriptorHandleForHeapStart());
D3D12_SAMPLER_DESC samplerDesc;
samplerDesc.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
samplerDesc.AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.AddressV = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.MinLOD = -FLT_MAX;
samplerDesc.MaxLOD = FLT_MAX;
samplerDesc.MipLODBias = 0;
samplerDesc.MaxAnisotropy = 0;
samplerDesc.ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER;
mDev->CreateSampler(&samplerDesc, mDescHeapSampler->GetCPUDescriptorHandleForHeapStart());
}
D3D(int width, int height, HWND hWnd)
: mBufferWidth(width), mBufferHeight(height), mDev(nullptr)
{
{
#if _DEBUG
CHK(CreateDXGIFactory2(DXGI_CREATE_FACTORY_DEBUG, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#else
CHK(CreateDXGIFactory2(0, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#endif /* _DEBUG */
}
#if _DEBUG
ID3D12Debug* debug = nullptr;
D3D12GetDebugInterface(IID_PPV_ARGS(&debug));
if (debug)
{
debug->EnableDebugLayer();
debug->Release();
debug = nullptr;
}
#endif /* _DEBUG */
ID3D12Device* dev;
CHK(D3D12CreateDevice(
nullptr,
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&dev)));
mDev = dev;
CHK(mDev->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(mCmdAlloc.ReleaseAndGetAddressOf())));
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
CHK(mDev->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(mCmdQueue.ReleaseAndGetAddressOf())));
DXGI_SWAP_CHAIN_DESC1 scDesc = {};
scDesc.Width = width;
scDesc.Height = height;
scDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
scDesc.SampleDesc.Count = 1;
scDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
scDesc.BufferCount = BUFFER_COUNT;
scDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
CHK(mDxgiFactory->CreateSwapChainForHwnd(mCmdQueue.Get(), hWnd, &scDesc, nullptr, nullptr, mSwapChain.ReleaseAndGetAddressOf()));
CHK(mDev->CreateCommandList(
0,
D3D12_COMMAND_LIST_TYPE_DIRECT,
mCmdAlloc.Get(),
nullptr,
IID_PPV_ARGS(mCmdList.ReleaseAndGetAddressOf())));
CHK(mDev->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(mFence.ReleaseAndGetAddressOf())));
mFenceEveneHandle = CreateEvent(nullptr, FALSE, FALSE, nullptr);
for (int i = 0; i < BUFFER_COUNT; i++)
{
CHK(mSwapChain->GetBuffer(i, IID_PPV_ARGS(mD3DBuffer[i].ReleaseAndGetAddressOf())));
mD3DBuffer[i]->SetName(L"SwapChain_Buffer");
}
{
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapRtv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
desc.NumDescriptors = 100;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapCbvSrvUav.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER;
desc.NumDescriptors = 10;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapSampler.ReleaseAndGetAddressOf())));
}
auto rtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
for (auto i = 0u; i < BUFFER_COUNT; i++)
{
auto d = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
d.ptr += i * rtvStep;
mDev->CreateRenderTargetView(mD3DBuffer[i].Get(), nullptr, d);
}
{
CD3DX12_DESCRIPTOR_RANGE descRange1, descRange2;
descRange1.Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
descRange2.Init(D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER, 1, 0);
CD3DX12_ROOT_PARAMETER rootParam[2];
rootParam[0].InitAsDescriptorTable(1, &descRange1);
rootParam[1].InitAsDescriptorTable(1, &descRange2);
ID3D10Blob *sig, *info;
auto rootSigDesc = D3D12_ROOT_SIGNATURE_DESC();
rootSigDesc.NumParameters = 2;
rootSigDesc.NumStaticSamplers = 0;
rootSigDesc.pParameters = rootParam;
rootSigDesc.pStaticSamplers = nullptr;
CHK(D3D12SerializeRootSignature(&rootSigDesc, D3D_ROOT_SIGNATURE_VERSION_1, &sig, &info));
mDev->CreateRootSignature(
0,
sig->GetBufferPointer(),
sig->GetBufferSize(),
IID_PPV_ARGS(mRootSignature.ReleaseAndGetAddressOf()));
sig->Release();
}
ID3D10Blob *vs, *ps;
{
ID3D10Blob *info;
UINT flag = 0;
#if _DEBUG
flag |= D3DCOMPILE_DEBUG;
#endif /* _DEBUG */
CHK(D3DCompileFromFile(L"Texture.hlsl", nullptr, nullptr, "VSMain", "vs_5_0", flag, 0, &vs, &info));
CHK(D3DCompileFromFile(L"Texture.hlsl", nullptr, nullptr, "PSMain", "ps_5_0", flag, 0, &ps, &info));
}
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.InputLayout.NumElements = 0;
psoDesc.pRootSignature = mRootSignature.Get();
psoDesc.VS.pShaderBytecode = vs->GetBufferPointer();
psoDesc.VS.BytecodeLength = vs->GetBufferSize();
psoDesc.PS.pShaderBytecode = ps->GetBufferPointer();
psoDesc.PS.BytecodeLength = ps->GetBufferSize();
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(CCCD3DX12_DEFAULT());
psoDesc.BlendState = CD3DX12_BLEND_DESC(CCCD3DX12_DEFAULT());
psoDesc.DepthStencilState.DepthEnable = false;
psoDesc.DepthStencilState.StencilEnable = false;
psoDesc.SampleMask = UINT_MAX;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.SampleDesc.Count = 1;
CHK(mDev->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(mPso.ReleaseAndGetAddressOf())));
vs->Release();
ps->Release();
{
// Read DDS file
vector<char> texData(4 * 256 * 256);
ifstream ifs("d3d12.dds", ios::binary);
if (!ifs)
throw runtime_error("Texture not found.");
ifs.seekg(128, ios::beg); // Skip DDS header
ifs.read(texData.data(), texData.size());
D3D12_RESOURCE_DESC resourceDesc = CD3DX12_RESOURCE_DESC::Tex2D(
DXGI_FORMAT_B8G8R8A8_UNORM, 256, 256, 1, 1, 1, 0, D3D12_RESOURCE_FLAG_NONE,
D3D12_TEXTURE_LAYOUT_UNKNOWN, 0);
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&resourceDesc,
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mTex.ReleaseAndGetAddressOf())));
mTex->SetName(L"Texure");
D3D12_BOX box = {};
box.right = 256;
box.bottom = 256;
box.back = 1;
CHK(mTex->WriteToSubresource(0, &box, texData.data(), 4 * 256, 4 * 256 * 256));
}
D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
srvDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
srvDesc.Texture2D.MipLevels = 1; // No MIP
srvDesc.Texture2D.MostDetailedMip = 0;
srvDesc.Texture2D.PlaneSlice = 0;
srvDesc.Texture2D.ResourceMinLODClamp = 0.0f;
mDev->CreateShaderResourceView(mTex.Get(), &srvDesc, mDescHeapCbvSrvUav->GetCPUDescriptorHandleForHeapStart());
D3D12_SAMPLER_DESC samplerDesc;
samplerDesc.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
samplerDesc.AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.AddressV = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.MinLOD = -FLT_MAX;
samplerDesc.MaxLOD = FLT_MAX;
samplerDesc.MipLODBias = 0;
samplerDesc.MaxAnisotropy = 0;
samplerDesc.ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER;
mDev->CreateSampler(&samplerDesc, mDescHeapSampler->GetCPUDescriptorHandleForHeapStart());
}
D3D(int width, int height, HWND hWnd)
: mBufferWidth(width), mBufferHeight(height), mDev(nullptr)
{
{
#if _DEBUG
CHK(CreateDXGIFactory2(DXGI_CREATE_FACTORY_DEBUG, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#else
CHK(CreateDXGIFactory2(0, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#endif /* _DEBUG */
}
#if _DEBUG
ID3D12Debug* debug = nullptr;
D3D12GetDebugInterface(IID_PPV_ARGS(&debug));
if (debug)
{
debug->EnableDebugLayer();
debug->Release();
debug = nullptr;
}
#endif /* _DEBUG */
ID3D12Device* dev;
CHK(D3D12CreateDevice(
nullptr,
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&dev)));
mDev = dev;
CHK(mDev->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(mCmdAlloc.ReleaseAndGetAddressOf())));
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
CHK(mDev->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(mCmdQueue.ReleaseAndGetAddressOf())));
DXGI_SWAP_CHAIN_DESC1 scDesc = {};
scDesc.Width = width;
scDesc.Height = height;
scDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
scDesc.SampleDesc.Count = 1;
scDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
scDesc.BufferCount = BUFFER_COUNT;
scDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
CHK(mDxgiFactory->CreateSwapChainForHwnd(mCmdQueue.Get(), hWnd, &scDesc, nullptr, nullptr, mSwapChain.ReleaseAndGetAddressOf()));
CHK(mDev->CreateCommandList(
0,
D3D12_COMMAND_LIST_TYPE_DIRECT,
mCmdAlloc.Get(),
nullptr,
IID_PPV_ARGS(mCmdList.ReleaseAndGetAddressOf())));
CHK(mDev->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(mFence.ReleaseAndGetAddressOf())));
mFenceEveneHandle = CreateEvent(nullptr, FALSE, FALSE, nullptr);
for (int i = 0; i < BUFFER_COUNT; i++)
{
CHK(mSwapChain->GetBuffer(i, IID_PPV_ARGS(mD3DBuffer[i].ReleaseAndGetAddressOf())));
mD3DBuffer[i]->SetName(L"SwapChain_Buffer");
}
{
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
desc.NumDescriptors = 10;
//desc.Flags = D3D12_DESCRIPTOR_HEAP_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapRtv.ReleaseAndGetAddressOf())));
}
auto rtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
for (auto i = 0u; i < BUFFER_COUNT; i++)
{
auto d = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
d.ptr += i * rtvStep;
mDev->CreateRenderTargetView(mD3DBuffer[i].Get(), nullptr, d);
}
{
ID3D10Blob *sig, *info;
auto rootSigDesc = D3D12_ROOT_SIGNATURE_DESC();
CHK(D3D12SerializeRootSignature(&rootSigDesc, D3D_ROOT_SIGNATURE_VERSION_1, &sig, &info));
mDev->CreateRootSignature(
0,
sig->GetBufferPointer(),
sig->GetBufferSize(),
IID_PPV_ARGS(mRootSignature.ReleaseAndGetAddressOf()));
sig->Release();
}
ID3D10Blob *vs, *ps;
{
ID3D10Blob *info;
UINT flag = 0;
#if _DEBUG
flag |= D3DCOMPILE_DEBUG;
#endif /* _DEBUG */
CHK(D3DCompileFromFile(L"Shader.hlsl", nullptr, nullptr, "VSMain", "vs_5_0", flag, 0, &vs, &info));
CHK(D3DCompileFromFile(L"Shader.hlsl", nullptr, nullptr, "PSMain", "ps_5_0", flag, 0, &ps, &info));
}
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.InputLayout.NumElements = 0;
psoDesc.pRootSignature = mRootSignature.Get();
psoDesc.VS.pShaderBytecode = vs->GetBufferPointer();
psoDesc.VS.BytecodeLength = vs->GetBufferSize();
psoDesc.PS.pShaderBytecode = ps->GetBufferPointer();
psoDesc.PS.BytecodeLength = ps->GetBufferSize();
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3DX12_DEFAULT);
psoDesc.BlendState = CD3DX12_BLEND_DESC(D3DX12_DEFAULT);
psoDesc.DepthStencilState.DepthEnable = false;
psoDesc.DepthStencilState.StencilEnable = false;
psoDesc.SampleMask = UINT_MAX;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.SampleDesc.Count = 1;
CHK(mDev->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(mPso.ReleaseAndGetAddressOf())));
vs->Release();
ps->Release();
}
D3D(int width, int height, HWND hWnd)
: mBufferWidth(width), mBufferHeight(height), mDev(nullptr)
{
{
#if _DEBUG
CHK(CreateDXGIFactory2(DXGI_CREATE_FACTORY_DEBUG, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#else
CHK(CreateDXGIFactory2(0, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#endif /* _DEBUG */
}
#if _DEBUG
ID3D12Debug* debug = nullptr;
D3D12GetDebugInterface(IID_PPV_ARGS(&debug));
if (debug)
{
debug->EnableDebugLayer();
debug->Release();
debug = nullptr;
}
#endif /* _DEBUG */
ID3D12Device* dev;
CHK(D3D12CreateDevice(
nullptr,
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&dev)));
mDev = dev;
for (auto& a : mCmdAlloc)
{
CHK(mDev->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(a.ReleaseAndGetAddressOf())));
}
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
CHK(mDev->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(mCmdQueue.ReleaseAndGetAddressOf())));
DXGI_SWAP_CHAIN_DESC1 scDesc = {};
scDesc.Width = width;
scDesc.Height = height;
scDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
scDesc.SampleDesc.Count = 1;
scDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
scDesc.BufferCount = BUFFER_COUNT;
scDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
CHK(mDxgiFactory->CreateSwapChainForHwnd(mCmdQueue.Get(), hWnd, &scDesc, nullptr, nullptr, mSwapChain.ReleaseAndGetAddressOf()));
CHK(mDev->CreateCommandList(
0,
D3D12_COMMAND_LIST_TYPE_DIRECT,
mCmdAlloc[0].Get(),
nullptr,
IID_PPV_ARGS(mCmdList.ReleaseAndGetAddressOf())));
mCmdList->Close();
CHK(mDev->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(mFence.ReleaseAndGetAddressOf())));
mFenceEveneHandle = CreateEvent(nullptr, FALSE, FALSE, nullptr);
for (int i = 0; i < BUFFER_COUNT; i++)
{
CHK(mSwapChain->GetBuffer(i, IID_PPV_ARGS(mD3DBuffer[i].ReleaseAndGetAddressOf())));
mD3DBuffer[i]->SetName(L"SwapChain_Buffer");
}
{
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapRtv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_DSV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapDsv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
desc.NumDescriptors = 100;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapCbvSrvUav.ReleaseAndGetAddressOf())));
}
auto rtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
for (auto i = 0u; i < BUFFER_COUNT; i++)
{
auto d = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
d.ptr += i * rtvStep;
mDev->CreateRenderTargetView(mD3DBuffer[i].Get(), nullptr, d);
}
{
CD3DX12_DESCRIPTOR_RANGE descRange1[1];
descRange1[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_CBV, 1, 0);
CD3DX12_ROOT_PARAMETER rootParam[2];
rootParam[0].InitAsDescriptorTable(ARRAYSIZE(descRange1), descRange1);
rootParam[1].InitAsConstants(1, 1, 0);
ID3D10Blob *sig, *info;
auto rootSigDesc = D3D12_ROOT_SIGNATURE_DESC();
rootSigDesc.NumParameters = ARRAYSIZE(rootParam);
rootSigDesc.NumStaticSamplers = 0;
rootSigDesc.pParameters = rootParam;
rootSigDesc.pStaticSamplers = nullptr;
rootSigDesc.Flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT;
CHK(D3D12SerializeRootSignature(&rootSigDesc, D3D_ROOT_SIGNATURE_VERSION_1, &sig, &info));
mDev->CreateRootSignature(
0,
sig->GetBufferPointer(),
sig->GetBufferSize(),
IID_PPV_ARGS(mRootSignature.ReleaseAndGetAddressOf()));
sig->Release();
}
ID3D10Blob *vs, *ps;
{
ID3D10Blob *info;
UINT flag = 0;
#if _DEBUG
flag |= D3DCOMPILE_DEBUG;
#endif /* _DEBUG */
CHK(D3DCompileFromFile(L"ParallelFrameRootConstant.hlsl", nullptr, nullptr, "VSMain", "vs_5_0", flag, 0, &vs, &info));
CHK(D3DCompileFromFile(L"ParallelFrameRootConstant.hlsl", nullptr, nullptr, "PSMain", "ps_5_0", flag, 0, &ps, &info));
}
D3D12_INPUT_ELEMENT_DESC inputLayout[] = {
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.InputLayout.NumElements = 3;
psoDesc.InputLayout.pInputElementDescs = inputLayout;
psoDesc.IBStripCutValue = D3D12_INDEX_BUFFER_STRIP_CUT_VALUE_DISABLED;
psoDesc.pRootSignature = mRootSignature.Get();
psoDesc.VS.pShaderBytecode = vs->GetBufferPointer();
psoDesc.VS.BytecodeLength = vs->GetBufferSize();
psoDesc.PS.pShaderBytecode = ps->GetBufferPointer();
psoDesc.PS.BytecodeLength = ps->GetBufferSize();
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(CCCD3DX12_DEFAULT());
psoDesc.BlendState = CD3DX12_BLEND_DESC(CCCD3DX12_DEFAULT());
psoDesc.DepthStencilState.DepthEnable = true;
psoDesc.DepthStencilState.DepthFunc = D3D12_COMPARISON_FUNC_LESS_EQUAL;
psoDesc.DepthStencilState.DepthWriteMask = D3D12_DEPTH_WRITE_MASK_ALL;
psoDesc.DepthStencilState.StencilEnable = false;
psoDesc.SampleMask = UINT_MAX;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.DSVFormat = DXGI_FORMAT_D32_FLOAT;
psoDesc.SampleDesc.Count = 1;
CHK(mDev->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(mPso.ReleaseAndGetAddressOf())));
vs->Release();
ps->Release();
WaveFrontReader<uint16_t> mesh;
CHK(mesh.Load(L"../Mesh/teapot.obj"));
mIndexCount = static_cast<UINT>(mesh.indices.size());
mVBIndexOffset = static_cast<UINT>(sizeof(mesh.vertices[0]) * mesh.vertices.size());
UINT IBSize = static_cast<UINT>(sizeof(mesh.indices[0]) * mIndexCount);
void* vbData = mesh.vertices.data();
void* ibData = mesh.indices.data();
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(sizeof(mVBIndexOffset) + sizeof(IBSize)),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mVB.ReleaseAndGetAddressOf())));
mVB->SetName(L"VertexBuffer");
char* vbUploadPtr = nullptr;
CHK(mVB->Map(0, nullptr, reinterpret_cast<void**>(&vbUploadPtr)));
memcpy_s(vbUploadPtr, mVBIndexOffset, vbData, mVBIndexOffset);
memcpy_s(vbUploadPtr + mVBIndexOffset, IBSize, ibData, IBSize);
mVB->Unmap(0, nullptr);
mVBView.BufferLocation = mVB->GetGPUVirtualAddress();
mVBView.StrideInBytes = sizeof(mesh.vertices[0]);
mVBView.SizeInBytes = mVBIndexOffset;
mIBView.BufferLocation = mVB->GetGPUVirtualAddress() + mVBIndexOffset;
mIBView.Format = DXGI_FORMAT_R16_UINT;
mIBView.SizeInBytes = IBSize;
auto resourceDesc = CD3DX12_RESOURCE_DESC::Tex2D(
DXGI_FORMAT_R32_TYPELESS, mBufferWidth, mBufferHeight, 1, 1, 1, 0, D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL,
D3D12_TEXTURE_LAYOUT_UNKNOWN, 0);
D3D12_CLEAR_VALUE dsvClearValue;
dsvClearValue.Format = DXGI_FORMAT_D32_FLOAT;
dsvClearValue.DepthStencil.Depth = 1.0f;
dsvClearValue.DepthStencil.Stencil = 0;
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT), // No need to read/write by CPU
D3D12_HEAP_FLAG_NONE,
&resourceDesc,
D3D12_RESOURCE_STATE_DEPTH_WRITE,
&dsvClearValue,
IID_PPV_ARGS(mDB.ReleaseAndGetAddressOf())));
mDB->SetName(L"DepthTexture");
D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
dsvDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2D;
dsvDesc.Format = DXGI_FORMAT_D32_FLOAT;
dsvDesc.Texture2D.MipSlice = 0;
dsvDesc.Flags = D3D12_DSV_FLAG_NONE;
mDev->CreateDepthStencilView(mDB.Get(), &dsvDesc, mDescHeapDsv->GetCPUDescriptorHandleForHeapStart());
UINT cbSize = 512; // 128 * MaxFrameLatency, 256 byte aligned
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(cbSize),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mCB.ReleaseAndGetAddressOf())));
mCB->SetName(L"ConstantBuffer");
D3D12_CONSTANT_BUFFER_VIEW_DESC cbvDesc = {};
cbvDesc.BufferLocation = mCB->GetGPUVirtualAddress();
cbvDesc.SizeInBytes = cbSize;
mDev->CreateConstantBufferView(
&cbvDesc,
mDescHeapCbvSrvUav->GetCPUDescriptorHandleForHeapStart());
CHK(mCB->Map(0, nullptr, reinterpret_cast<void**>(&mCBUploadPtr)));
}
void Draw()
{
mFrameCount++;
int cmdIndex = mFrameCount % MaxFrameLatency;
auto* cmdQueue = mCmdQueue.Get();
auto* cmdList = mCmdList.Get();
// Wait untill next queue be freed
if (mFrameCount > MaxFrameLatency)
{
mFence->SetEventOnCompletion(mFrameCount - MaxFrameLatency, mFenceEveneHandle);
DWORD wait = WaitForSingleObject(mFenceEveneHandle, 10000);
if (wait != WAIT_OBJECT_0)
throw runtime_error("Failed WaitForSingleObject().");
CHK(mCmdAlloc[cmdIndex]->Reset());
}
CHK(cmdList->Reset(mCmdAlloc[cmdIndex].Get(), nullptr));
// Upload constant buffer
{
static float rot = 0.0f;
rot += 1.0f;
if (rot >= 360.0f) rot = 0.0f;
XMMATRIX worldMat, viewMat, projMat;
worldMat = XMMatrixRotationY(XMConvertToRadians(rot));
viewMat = XMMatrixLookAtLH({ 0, 1, -1.5f }, { 0, 0.5f, 0 }, { 0, 1, 0 });
projMat = XMMatrixPerspectiveFovLH(45, (float)mBufferWidth / mBufferHeight, 0.01f, 50.0f);
auto mvpMat = XMMatrixTranspose(worldMat * viewMat * projMat);
auto worldTransMat = XMMatrixTranspose(worldMat);
// mCBUploadPtr is Write-Combine memory
// Shift offset to guarantee that the pointer has not referred by executing command list.
char* ptr = reinterpret_cast<char*>(mCBUploadPtr) + sizeof(float[16]) * cmdIndex;
memcpy_s(ptr, 64, &mvpMat, 64);
const auto worldMatrixOffset = sizeof(float[16]) * MaxFrameLatency;
memcpy_s(ptr + worldMatrixOffset, 64, &worldTransMat, 64);
}
// Get current RTV descriptor
auto descHandleRtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
D3D12_CPU_DESCRIPTOR_HANDLE descHandleRtv = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
descHandleRtv.ptr += ((mFrameCount - 1) % BUFFER_COUNT) * descHandleRtvStep;
// Get current swap chain
ID3D12Resource* d3dBuffer = mD3DBuffer[(mFrameCount - 1) % BUFFER_COUNT].Get();
// Get DSV
auto descHandleDsv = mDescHeapDsv->GetCPUDescriptorHandleForHeapStart();
// Barrier Present -> RenderTarget
setResourceBarrier(mCmdList.Get(), d3dBuffer, D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET);
// Viewport & Scissor
D3D12_VIEWPORT viewport = {};
viewport.Width = (float)mBufferWidth;
viewport.Height = (float)mBufferHeight;
viewport.MinDepth = 0.0f;
viewport.MaxDepth = 1.0f;
cmdList->RSSetViewports(1, &viewport);
D3D12_RECT scissor = {};
scissor.right = (LONG)mBufferWidth;
scissor.bottom = (LONG)mBufferHeight;
cmdList->RSSetScissorRects(1, &scissor);
// Clear DepthTexture
cmdList->ClearDepthStencilView(descHandleDsv, D3D12_CLEAR_FLAG_DEPTH, 1.0f, 0, 0, nullptr);
// Clear
{
float clearColor[4] = { 0.1f, 0.2f, 0.3f, 1.0f };
mCmdList->ClearRenderTargetView(descHandleRtv, clearColor, 0, nullptr);
}
mCmdList->OMSetRenderTargets(1, &descHandleRtv, true, &descHandleDsv);
// Draw
cmdList->SetGraphicsRootSignature(mRootSignature.Get());
ID3D12DescriptorHeap* descHeaps[] = { mDescHeapCbvSrvUav.Get() };
cmdList->SetDescriptorHeaps(ARRAYSIZE(descHeaps), descHeaps);
cmdList->SetGraphicsRoot32BitConstant(1, cmdIndex, 0);
{
cmdList->SetGraphicsRootDescriptorTable(0, mDescHeapCbvSrvUav->GetGPUDescriptorHandleForHeapStart());
cmdList->SetPipelineState(mPso.Get());
cmdList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
cmdList->IASetVertexBuffers(0, 1, &mVBView);
cmdList->IASetIndexBuffer(&mIBView);
cmdList->DrawIndexedInstanced(mIndexCount, 1, 0, 0, 0);
}
// Barrier RenderTarget -> Present
setResourceBarrier(mCmdList.Get(), d3dBuffer, D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT);
// Exec
CHK(cmdList->Close());
ID3D12CommandList* const cmdLists = cmdList;
cmdQueue->ExecuteCommandLists(1, &cmdLists);
CHK(cmdQueue->Signal(mFence.Get(), mFrameCount));
// Present
CHK(mSwapChain->Present(1, 0));
}
D3D(int width, int height, HWND hWnd)
: mBufferWidth(width), mBufferHeight(height), mDev(nullptr)
{
{
#if _DEBUG
CHK(CreateDXGIFactory2(DXGI_CREATE_FACTORY_DEBUG, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#else
CHK(CreateDXGIFactory2(0, IID_PPV_ARGS(mDxgiFactory.ReleaseAndGetAddressOf())));
#endif /* _DEBUG */
}
#if _DEBUG
ID3D12Debug* debug = nullptr;
D3D12GetDebugInterface(IID_PPV_ARGS(&debug));
if (debug)
{
debug->EnableDebugLayer();
debug->Release();
debug = nullptr;
}
#endif /* _DEBUG */
ID3D12Device* dev;
CHK(D3D12CreateDevice(
nullptr,
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&dev)));
mDev = dev;
CHK(mDev->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(mCmdAlloc.ReleaseAndGetAddressOf())));
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
CHK(mDev->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(mCmdQueue.ReleaseAndGetAddressOf())));
DXGI_SWAP_CHAIN_DESC1 scDesc = {};
scDesc.Width = width;
scDesc.Height = height;
scDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
scDesc.SampleDesc.Count = 1;
scDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
scDesc.BufferCount = BUFFER_COUNT;
scDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
CHK(mDxgiFactory->CreateSwapChainForHwnd(mCmdQueue.Get(), hWnd, &scDesc, nullptr, nullptr, mSwapChain.ReleaseAndGetAddressOf()));
CHK(mDev->CreateCommandList(
0,
D3D12_COMMAND_LIST_TYPE_DIRECT,
mCmdAlloc.Get(),
nullptr,
IID_PPV_ARGS(mCmdList.ReleaseAndGetAddressOf())));
CHK(mDev->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(mFence.ReleaseAndGetAddressOf())));
mFenceEveneHandle = CreateEvent(nullptr, FALSE, FALSE, nullptr);
for (int i = 0; i < BUFFER_COUNT; i++)
{
CHK(mSwapChain->GetBuffer(i, IID_PPV_ARGS(mD3DBuffer[i].ReleaseAndGetAddressOf())));
mD3DBuffer[i]->SetName(L"SwapChain_Buffer");
}
{
D3D12_DESCRIPTOR_HEAP_DESC desc = {};
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapRtv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_DSV;
desc.NumDescriptors = 10;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapDsv.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
desc.NumDescriptors = 100;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapCbvSrvUav.ReleaseAndGetAddressOf())));
desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER;
desc.NumDescriptors = 100;
desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
desc.NodeMask = 0;
CHK(mDev->CreateDescriptorHeap(&desc, IID_PPV_ARGS(mDescHeapSampler.ReleaseAndGetAddressOf())));
}
auto rtvStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
for (auto i = 0u; i < BUFFER_COUNT; i++)
{
auto d = mDescHeapRtv->GetCPUDescriptorHandleForHeapStart();
d.ptr += i * rtvStep;
mDev->CreateRenderTargetView(mD3DBuffer[i].Get(), nullptr, d);
}
{
CD3DX12_DESCRIPTOR_RANGE descRange1[2];
descRange1[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_CBV, 1, 0);
descRange1[1].Init(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
CD3DX12_DESCRIPTOR_RANGE descRange2[1];
descRange2[0].Init(D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER, 1, 0);
CD3DX12_ROOT_PARAMETER rootParam[2];
rootParam[0].InitAsDescriptorTable(ARRAYSIZE(descRange1), descRange1);
rootParam[1].InitAsDescriptorTable(ARRAYSIZE(descRange2), descRange2, D3D12_SHADER_VISIBILITY_PIXEL);
ID3D10Blob *sig, *info;
auto rootSigDesc = D3D12_ROOT_SIGNATURE_DESC();
rootSigDesc.NumParameters = ARRAYSIZE(rootParam);
rootSigDesc.NumStaticSamplers = 0;
rootSigDesc.pParameters = rootParam;
rootSigDesc.pStaticSamplers = nullptr;
rootSigDesc.Flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT;
CHK(D3D12SerializeRootSignature(&rootSigDesc, D3D_ROOT_SIGNATURE_VERSION_1, &sig, &info));
mDev->CreateRootSignature(
0,
sig->GetBufferPointer(),
sig->GetBufferSize(),
IID_PPV_ARGS(mRootSignature.ReleaseAndGetAddressOf()));
sig->Release();
}
ID3D10Blob *vs, *ps;
{
ID3D10Blob *info;
UINT flag = 0;
#if _DEBUG
flag |= D3DCOMPILE_DEBUG;
#endif /* _DEBUG */
CHK(D3DCompileFromFile(L"MeshTex.hlsl", nullptr, nullptr, "VSMain", "vs_5_0", flag, 0, &vs, &info));
CHK(D3DCompileFromFile(L"MeshTex.hlsl", nullptr, nullptr, "PSMain", "ps_5_0", flag, 0, &ps, &info));
}
D3D12_INPUT_ELEMENT_DESC inputLayout[] = {
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
psoDesc.InputLayout.NumElements = 3;
psoDesc.InputLayout.pInputElementDescs = inputLayout;
psoDesc.IBStripCutValue = D3D12_INDEX_BUFFER_STRIP_CUT_VALUE_DISABLED;
psoDesc.pRootSignature = mRootSignature.Get();
psoDesc.VS.pShaderBytecode = vs->GetBufferPointer();
psoDesc.VS.BytecodeLength = vs->GetBufferSize();
psoDesc.PS.pShaderBytecode = ps->GetBufferPointer();
psoDesc.PS.BytecodeLength = ps->GetBufferSize();
psoDesc.RasterizerState = CD3DX12_RASTERIZER_DESC(D3DX12_DEFAULT);
psoDesc.BlendState = CD3DX12_BLEND_DESC(D3DX12_DEFAULT);
psoDesc.DepthStencilState.DepthEnable = true;
psoDesc.DepthStencilState.DepthFunc = D3D12_COMPARISON_FUNC_LESS_EQUAL;
psoDesc.DepthStencilState.DepthWriteMask = D3D12_DEPTH_WRITE_MASK_ALL;
psoDesc.DepthStencilState.StencilEnable = false;
psoDesc.SampleMask = UINT_MAX;
psoDesc.NumRenderTargets = 1;
psoDesc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
psoDesc.DSVFormat = DXGI_FORMAT_D32_FLOAT;
psoDesc.SampleDesc.Count = 1;
CHK(mDev->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(mPso.ReleaseAndGetAddressOf())));
vs->Release();
ps->Release();
WaveFrontReader<uint16_t> mesh;
CHK(mesh.Load(L"teapot_tex2.obj"));
mIndexCount = static_cast<UINT>(mesh.indices.size());
mVBIndexOffset = static_cast<UINT>(sizeof(mesh.vertices[0]) * mesh.vertices.size());
UINT IBSize = static_cast<UINT>(sizeof(mesh.indices[0]) * mIndexCount);
void* vbData = mesh.vertices.data();
void* ibData = mesh.indices.data();
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(mVBIndexOffset + IBSize),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mVB.ReleaseAndGetAddressOf())));
mVB->SetName(L"VertexBuffer");
char* vbUploadPtr = nullptr;
CHK(mVB->Map(0, nullptr, reinterpret_cast<void**>(&vbUploadPtr)));
memcpy_s(vbUploadPtr, mVBIndexOffset, vbData, mVBIndexOffset);
memcpy_s(vbUploadPtr + mVBIndexOffset, IBSize, ibData, IBSize);
mVB->Unmap(0, nullptr);
mVBView.BufferLocation = mVB->GetGPUVirtualAddress();
mVBView.StrideInBytes = sizeof(mesh.vertices[0]);
mVBView.SizeInBytes = mVBIndexOffset;
mIBView.BufferLocation = mVB->GetGPUVirtualAddress() + mVBIndexOffset;
mIBView.Format = DXGI_FORMAT_R16_UINT;
mIBView.SizeInBytes = IBSize;
auto resourceDesc = CD3DX12_RESOURCE_DESC::Tex2D(
DXGI_FORMAT_R32_TYPELESS, mBufferWidth, mBufferHeight, 1, 1, 1, 0, D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL,
D3D12_TEXTURE_LAYOUT_UNKNOWN, 0);
D3D12_CLEAR_VALUE dsvClearValue;
dsvClearValue.Format = DXGI_FORMAT_D32_FLOAT;
dsvClearValue.DepthStencil.Depth = 1.0f;
dsvClearValue.DepthStencil.Stencil = 0;
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT), // No need to read/write by CPU
D3D12_HEAP_FLAG_NONE,
&resourceDesc,
D3D12_RESOURCE_STATE_DEPTH_WRITE,
&dsvClearValue,
IID_PPV_ARGS(mDB.ReleaseAndGetAddressOf())));
mDB->SetName(L"DepthTexture");
D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
dsvDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2D;
dsvDesc.Format = DXGI_FORMAT_D32_FLOAT;
dsvDesc.Texture2D.MipSlice = 0;
dsvDesc.Flags = D3D12_DSV_FLAG_NONE;
mDev->CreateDepthStencilView(mDB.Get(), &dsvDesc, mDescHeapDsv->GetCPUDescriptorHandleForHeapStart());
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mCB.ReleaseAndGetAddressOf())));
mCB->SetName(L"ConstantBuffer");
D3D12_CONSTANT_BUFFER_VIEW_DESC cbvDesc = {};
cbvDesc.BufferLocation = mCB->GetGPUVirtualAddress();
cbvDesc.SizeInBytes = D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT; // must be a multiple of 256
mDev->CreateConstantBufferView(
&cbvDesc,
mDescHeapCbvSrvUav->GetCPUDescriptorHandleForHeapStart());
CHK(mCB->Map(0, nullptr, reinterpret_cast<void**>(&mCBUploadPtr)));
{
// Read DDS file
vector<char> texData(4 * 256 * 256);
ifstream ifs("cat.dds", ios::binary);
if (!ifs)
throw runtime_error("Texture not found.");
ifs.seekg(128, ios::beg); // Skip DDS header
ifs.read(texData.data(), texData.size());
resourceDesc = CD3DX12_RESOURCE_DESC::Tex2D(
DXGI_FORMAT_B8G8R8A8_UNORM, 256, 256, 1, 1, 1, 0, D3D12_RESOURCE_FLAG_NONE,
D3D12_TEXTURE_LAYOUT_UNKNOWN, 0);
CHK(mDev->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&resourceDesc,
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mTex.ReleaseAndGetAddressOf())));
mTex->SetName(L"Texure");
D3D12_BOX box = {};
box.right = 256;
box.bottom = 256;
box.back = 1;
CHK(mTex->WriteToSubresource(0, &box, texData.data(), 4 * 256, 4 * 256 * 256));
}
D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
srvDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
srvDesc.Texture2D.MipLevels = 1;
srvDesc.Texture2D.MostDetailedMip = 0; // No MIP
srvDesc.Texture2D.PlaneSlice = 0;
srvDesc.Texture2D.ResourceMinLODClamp = 0.0f;
auto cbvSrcUavDescHandle = mDescHeapCbvSrvUav->GetCPUDescriptorHandleForHeapStart();
auto cbvSrvUavDescStep = mDev->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
cbvSrcUavDescHandle.ptr += cbvSrvUavDescStep;
mDev->CreateShaderResourceView(mTex.Get(), &srvDesc, cbvSrcUavDescHandle);
D3D12_SAMPLER_DESC samplerDesc;
samplerDesc.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
samplerDesc.AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.AddressV = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
samplerDesc.MinLOD = -FLT_MAX;
samplerDesc.MaxLOD = FLT_MAX;
samplerDesc.MipLODBias = 0;
samplerDesc.MaxAnisotropy = 0;
samplerDesc.ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER;
mDev->CreateSampler(&samplerDesc, mDescHeapSampler->GetCPUDescriptorHandleForHeapStart());
}