bool FormatIsUAVCompatible()

in Src/ResourceUploadBatch.cpp [32:100]
63 lines of code
46 McCabe index (conditional complexity)

    bool FormatIsUAVCompatible(_In_ ID3D12Device* device, bool typedUAVLoadAdditionalFormats, DXGI_FORMAT format) noexcept
    {
        switch (format)
        {
        case DXGI_FORMAT_R32_FLOAT:
        case DXGI_FORMAT_R32_UINT:
        case DXGI_FORMAT_R32_SINT:
            // Unconditionally supported.
            return true;

        case DXGI_FORMAT_R32G32B32A32_FLOAT:
        case DXGI_FORMAT_R32G32B32A32_UINT:
        case DXGI_FORMAT_R32G32B32A32_SINT:
        case DXGI_FORMAT_R16G16B16A16_FLOAT:
        case DXGI_FORMAT_R16G16B16A16_UINT:
        case DXGI_FORMAT_R16G16B16A16_SINT:
        case DXGI_FORMAT_R8G8B8A8_UNORM:
        case DXGI_FORMAT_R8G8B8A8_UINT:
        case DXGI_FORMAT_R8G8B8A8_SINT:
        case DXGI_FORMAT_R16_FLOAT:
        case DXGI_FORMAT_R16_UINT:
        case DXGI_FORMAT_R16_SINT:
        case DXGI_FORMAT_R8_UNORM:
        case DXGI_FORMAT_R8_UINT:
        case DXGI_FORMAT_R8_SINT:
            // All these are supported if this optional feature is set.
            return typedUAVLoadAdditionalFormats;

        case DXGI_FORMAT_R16G16B16A16_UNORM:
        case DXGI_FORMAT_R16G16B16A16_SNORM:
        case DXGI_FORMAT_R32G32_FLOAT:
        case DXGI_FORMAT_R32G32_UINT:
        case DXGI_FORMAT_R32G32_SINT:
        case DXGI_FORMAT_R10G10B10A2_UNORM:
        case DXGI_FORMAT_R10G10B10A2_UINT:
        case DXGI_FORMAT_R11G11B10_FLOAT:
        case DXGI_FORMAT_R8G8B8A8_SNORM:
        case DXGI_FORMAT_R16G16_FLOAT:
        case DXGI_FORMAT_R16G16_UNORM:
        case DXGI_FORMAT_R16G16_UINT:
        case DXGI_FORMAT_R16G16_SNORM:
        case DXGI_FORMAT_R16G16_SINT:
        case DXGI_FORMAT_R8G8_UNORM:
        case DXGI_FORMAT_R8G8_UINT:
        case DXGI_FORMAT_R8G8_SNORM:
        case DXGI_FORMAT_R8G8_SINT:
        case DXGI_FORMAT_R16_UNORM:
        case DXGI_FORMAT_R16_SNORM:
        case DXGI_FORMAT_R8_SNORM:
        case DXGI_FORMAT_A8_UNORM:
        case DXGI_FORMAT_B5G6R5_UNORM:
        case DXGI_FORMAT_B5G5R5A1_UNORM:
        case DXGI_FORMAT_B4G4R4A4_UNORM:
            // Conditionally supported by specific devices.
            if (typedUAVLoadAdditionalFormats)
            {
                D3D12_FEATURE_DATA_FORMAT_SUPPORT formatSupport = { format, D3D12_FORMAT_SUPPORT1_NONE, D3D12_FORMAT_SUPPORT2_NONE };
                if (SUCCEEDED(device->CheckFeatureSupport(D3D12_FEATURE_FORMAT_SUPPORT, &formatSupport, sizeof(formatSupport))))
                {
                    const DWORD mask = D3D12_FORMAT_SUPPORT2_UAV_TYPED_LOAD | D3D12_FORMAT_SUPPORT2_UAV_TYPED_STORE;
                    return ((formatSupport.Support2 & mask) == mask);
                }
            }
            return false;

        default:
            return false;
        }
    }