Application::Application() :
window(new Window(1280, 720, L"testerata!")),
device(new D3D12Device(*window)),
frameQueueIndex(0)
{
// Create a command allocator for every inflight-frame
for (int i = 0; i < D3D12Device::MAX_FRAMES_INFLIGHT; ++i)
{
if (FAILED(device->GetD3D12Device()->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&commandAllocator[i]))))
CRITICAL_ERROR("Failed to create command list allocator.");
}
// Create the command list.
if (FAILED(device->GetD3D12Device()->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, commandAllocator[frameQueueIndex].Get(), pso.Get(), IID_PPV_ARGS(&commandList))))
CRITICAL_ERROR("Failed to create command list");
commandList->Close();
CreateRootSignature();
CreatePSO();
CreateVertexBuffer();
CreateTextures();
// Configure viewport and scissor rect.
viewport.TopLeftX = 0.0f;
viewport.TopLeftY = 0.0f;
viewport.Width = static_cast<float>(window->GetWidth());
viewport.Height = static_cast<float>(window->GetHeight());
viewport.MinDepth = 0.0f;
viewport.MaxDepth = 1.0f;
scissorRect.left = 0;
scissorRect.top = 0;
scissorRect.right = static_cast<LONG>(window->GetWidth());
scissorRect.bottom = static_cast<LONG>(window->GetHeight());
}
// --------------------------------------------------------------------------------------------------------------------
bool DynamicStreamingD3D12Bundle::Init(size_t _maxVertexCount)
{
m_VertexData = 0;
if (!CreatePSO())
return false;
if (!CreateGeometryBuffer(_maxVertexCount))
return false;
if (!CreateCommandList())
return false;
return true;
}
GenerateMipsHelper::GenerateMipsHelper(ID3D12Device *pd3d12Device)
{
CD3DX12_ROOT_PARAMETER Params[3];
Params[0].InitAsConstants(4, 0);
CD3DX12_DESCRIPTOR_RANGE SRVRange(D3D12_DESCRIPTOR_RANGE_TYPE_SRV, 1, 0);
Params[1].InitAsDescriptorTable(1, &SRVRange);
CD3DX12_DESCRIPTOR_RANGE UAVRange(D3D12_DESCRIPTOR_RANGE_TYPE_UAV, 4, 0);
Params[2].InitAsDescriptorTable(1, &UAVRange);
CD3DX12_STATIC_SAMPLER_DESC SamplerLinearClampDesc(
0, D3D12_FILTER_MIN_MAG_MIP_LINEAR, D3D12_TEXTURE_ADDRESS_MODE_CLAMP, D3D12_TEXTURE_ADDRESS_MODE_CLAMP, D3D12_TEXTURE_ADDRESS_MODE_CLAMP);
CD3DX12_ROOT_SIGNATURE_DESC RootSigDesc;
RootSigDesc.NumParameters = _countof(Params);
RootSigDesc.pParameters = Params;
RootSigDesc.NumStaticSamplers = 1;
RootSigDesc.pStaticSamplers = &SamplerLinearClampDesc;
RootSigDesc.Flags = D3D12_ROOT_SIGNATURE_FLAG_NONE;
CComPtr<ID3DBlob> signature;
CComPtr<ID3DBlob> error;
HRESULT hr = D3D12SerializeRootSignature(&RootSigDesc, D3D_ROOT_SIGNATURE_VERSION_1, &signature, &error);
hr = pd3d12Device->CreateRootSignature(0, signature->GetBufferPointer(), signature->GetBufferSize(), __uuidof(m_pGenerateMipsRS), reinterpret_cast<void**>( static_cast<ID3D12RootSignature**>(&m_pGenerateMipsRS)));
CHECK_D3D_RESULT_THROW(hr, "Failed to create root signature for mipmap generation")
D3D12_COMPUTE_PIPELINE_STATE_DESC PSODesc = {};
PSODesc.pRootSignature = m_pGenerateMipsRS;
PSODesc.NodeMask = 0;
PSODesc.Flags = D3D12_PIPELINE_STATE_FLAG_NONE;
#define CreatePSO(PSO, ShaderByteCode) \
PSODesc.CS.pShaderBytecode = ShaderByteCode;\
PSODesc.CS.BytecodeLength = sizeof(ShaderByteCode);\
hr = pd3d12Device->CreateComputePipelineState(&PSODesc, __uuidof(PSO), reinterpret_cast<void**>( static_cast<ID3D12PipelineState**>(&PSO))); \
CHECK_D3D_RESULT_THROW(hr, "Failed to create Pipeline state for mipmap generation")
CreatePSO(m_pGenerateMipsLinearPSO[0], g_pGenerateMipsLinearCS);
CreatePSO(m_pGenerateMipsLinearPSO[1], g_pGenerateMipsLinearOddXCS);
CreatePSO(m_pGenerateMipsLinearPSO[2], g_pGenerateMipsLinearOddYCS);
CreatePSO(m_pGenerateMipsLinearPSO[3], g_pGenerateMipsLinearOddCS);
CreatePSO(m_pGenerateMipsGammaPSO[0], g_pGenerateMipsGammaCS);
CreatePSO(m_pGenerateMipsGammaPSO[1], g_pGenerateMipsGammaOddXCS);
CreatePSO(m_pGenerateMipsGammaPSO[2], g_pGenerateMipsGammaOddYCS);
CreatePSO(m_pGenerateMipsGammaPSO[3], g_pGenerateMipsGammaOddCS);
}
