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())));
}
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[1];
rootParam[0].InitAsDescriptorTable(ARRAYSIZE(descRange1), descRange1);
ID3D10Blob *sig, *info;
auto rootSigDesc = D3D12_ROOT_SIGNATURE_DESC();
rootSigDesc.NumParameters = 1;
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"../Mesh/Mesh.hlsl", nullptr, nullptr, "VSMain", "vs_5_0", flag, 0, &vs, &info));
CHK(D3DCompileFromFile(L"../Mesh/Mesh.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();
{
D3D12_HEAP_DESC desc = {};
desc.Properties = CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD);
desc.Alignment = D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT;
desc.Flags = D3D12_HEAP_FLAG_ALLOW_ALL_BUFFERS_AND_TEXTURES;
desc.SizeInBytes = 32 * 1024 * 1024;
CHK(mDev->CreateHeap(&desc, IID_PPV_ARGS(mHeap.ReleaseAndGetAddressOf())));
}
unsigned int placementHeapSize = 0;
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(mVBIndexOffset + IBSize),
// D3D12_RESOURCE_STATE_GENERIC_READ,
// nullptr,
// IID_PPV_ARGS(mVB.ReleaseAndGetAddressOf())));
{
auto desc = CD3DX12_RESOURCE_DESC::Buffer(mVBIndexOffset + IBSize);
CHK(mDev->CreatePlacedResource(
mHeap.Get(),
placementHeapSize,
&desc,
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mVB.ReleaseAndGetAddressOf())));
auto info = mDev->GetResourceAllocationInfo(0, 1, &desc);
placementHeapSize += (uint32_t)info.SizeInBytes;
}
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())));
{
auto desc = CD3DX12_RESOURCE_DESC::Buffer(D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT);
CHK(mDev->CreatePlacedResource(
mHeap.Get(),
placementHeapSize,
&CD3DX12_RESOURCE_DESC::Buffer(D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(mCB.ReleaseAndGetAddressOf())));
auto info = mDev->GetResourceAllocationInfo(0, 1, &desc);
placementHeapSize += (uint32_t)info.SizeInBytes;
}
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)));
}