Method CreateGraphicsPSO

src/DX12/DX12EngineInterfaceImpl.cpp:1075–1196

}

std::unique_ptr<EI_PSO> EI_Device::CreateGraphicsPSO(const char* vertexShaderName, const char* vertexEntryPoint, const char* fragmentShaderName, const char* fragmentEntryPoint, EI_PSOParams& psoParams)
{
    EI_PSO* result = new EI_PSO;

    DefineList defines;
    defines["AMD_TRESSFX_MAX_NUM_BONES"] = std::to_string(AMD_TRESSFX_MAX_NUM_BONES);
    defines["AMD_TRESSFX_MAX_HAIR_GROUP_RENDER"] = std::to_string(AMD_TRESSFX_MAX_HAIR_GROUP_RENDER);
    defines["AMD_TRESSFX_DX12"] = "1";

#ifdef TRESSFX_DEBUG_UAV
    defines["TRESSFX_DEBUG_UAV"] = "1";
#endif // TRESSFX_DEBUG_UAV

    // Compile and create shaders
    D3D12_SHADER_BYTECODE vertexShader, fragmentShader;

    CAULDRON_DX12::CompileShaderFromFile(vertexShaderName, &defines, vertexEntryPoint, "vs_6_0", D3DCOMPILE_DEBUG | D3DCOMPILE_OPTIMIZATION_LEVEL0 | D3DCOMPILE_SKIP_OPTIMIZATION, &vertexShader);
    CAULDRON_DX12::CompileShaderFromFile(fragmentShaderName, &defines, fragmentEntryPoint, "ps_6_0", D3DCOMPILE_DEBUG | D3DCOMPILE_OPTIMIZATION_LEVEL0 | D3DCOMPILE_SKIP_OPTIMIZATION, &fragmentShader);
    
    CD3DX12_ROOT_PARAMETER descSetLayouts[16];
    for (int i = 0; i < psoParams.numLayouts; ++i)
    {
        // i dont like this since it has a side effect on the layout that gets passed - i'd just get rid of the spaces
        for (int j = 0; j < psoParams.layouts[i]->layoutBindings.size(); ++j)
        {
            psoParams.layouts[i]->layoutBindings[j].RegisterSpace = i;
        }
        descSetLayouts[i].InitAsDescriptorTable((uint32_t)psoParams.layouts[i]->layoutBindings.size(), psoParams.layouts[i]->layoutBindings.data(), GetShaderVisibility(psoParams.layouts[i]->description.stage));
    }

    CD3DX12_ROOT_SIGNATURE_DESC descRootSignature = CD3DX12_ROOT_SIGNATURE_DESC();
    descRootSignature.NumParameters = psoParams.numLayouts;
    descRootSignature.pParameters = descSetLayouts;
    descRootSignature.NumStaticSamplers = 0;
    descRootSignature.pStaticSamplers = 0;

    // deny uneccessary access to certain pipeline stages
    descRootSignature.Flags = D3D12_ROOT_SIGNATURE_FLAG_NONE
        | 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;

    ID3DBlob* signature;
    ID3DBlob* error;
    HRESULT hr = D3D12SerializeRootSignature(&descRootSignature, D3D_ROOT_SIGNATURE_VERSION_1, &signature, &error);
    m_device.GetDevice()->CreateRootSignature(
        0,
        signature->GetBufferPointer(),
        signature->GetBufferSize(),
        __uuidof(ID3D12RootSignature),
        (void**)&result->m_pipelineLayout);

    signature->Release();
    if (error)
        error->Release();

    // Setup blending