aboutsummaryrefslogtreecommitdiffstats
path: root/support/hololens/ServoApp/Common/DeviceResources.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'support/hololens/ServoApp/Common/DeviceResources.cpp')
-rw-r--r--support/hololens/ServoApp/Common/DeviceResources.cpp280
1 files changed, 0 insertions, 280 deletions
diff --git a/support/hololens/ServoApp/Common/DeviceResources.cpp b/support/hololens/ServoApp/Common/DeviceResources.cpp
deleted file mode 100644
index f5ffbec0d89..00000000000
--- a/support/hololens/ServoApp/Common/DeviceResources.cpp
+++ /dev/null
@@ -1,280 +0,0 @@
-
-#include "pch.h"
-#include "DeviceResources.h"
-#include "DirectXHelper.h"
-
-using namespace D2D1;
-using namespace Microsoft::WRL;
-using namespace winrt::Windows::Graphics::DirectX::Direct3D11;
-using namespace winrt::Windows::Graphics::Display;
-using namespace winrt::Windows::Graphics::Holographic;
-
-// Constructor for DeviceResources.
-DX::DeviceResources::DeviceResources() { CreateDeviceIndependentResources(); }
-
-// Configures resources that don't depend on the Direct3D device.
-void DX::DeviceResources::CreateDeviceIndependentResources() {
- // Initialize Direct2D resources.
- D2D1_FACTORY_OPTIONS options{};
-
-#if defined(_DEBUG)
- // If the project is in a debug build, enable Direct2D debugging via SDK
- // Layers.
- options.debugLevel = D2D1_DEBUG_LEVEL_INFORMATION;
-#endif
-
- // Initialize the Direct2D Factory.
- winrt::check_hresult(D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED,
- __uuidof(ID2D1Factory2), &options,
- &m_d2dFactory));
-
- // Initialize the DirectWrite Factory.
- winrt::check_hresult(DWriteCreateFactory(
- DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory2), &m_dwriteFactory));
-
- // Initialize the Windows Imaging Component (WIC) Factory.
- winrt::check_hresult(CoCreateInstance(CLSID_WICImagingFactory2, nullptr,
- CLSCTX_INPROC_SERVER,
- IID_PPV_ARGS(&m_wicFactory)));
-}
-
-void DX::DeviceResources::SetHolographicSpace(
- HolographicSpace holographicSpace) {
- // Cache the holographic space. Used to re-initalize during device-lost
- // scenarios.
- m_holographicSpace = holographicSpace;
-
- InitializeUsingHolographicSpace();
-}
-
-void DX::DeviceResources::InitializeUsingHolographicSpace() {
- // The holographic space might need to determine which adapter supports
- // holograms, in which case it will specify a non-zero PrimaryAdapterId.
- LUID id = {m_holographicSpace.PrimaryAdapterId().LowPart,
- m_holographicSpace.PrimaryAdapterId().HighPart};
-
- // When a primary adapter ID is given to the app, the app should find
- // the corresponding DXGI adapter and use it to create Direct3D devices
- // and device contexts. Otherwise, there is no restriction on the DXGI
- // adapter the app can use.
- if ((id.HighPart != 0) || (id.LowPart != 0)) {
- UINT createFlags = 0;
-#ifdef DEBUG
- if (DX::SdkLayersAvailable()) {
- createFlags |= DXGI_CREATE_FACTORY_DEBUG;
- }
-#endif
- // Create the DXGI factory.
- ComPtr<IDXGIFactory1> dxgiFactory;
- winrt::check_hresult(
- CreateDXGIFactory2(createFlags, IID_PPV_ARGS(&dxgiFactory)));
- ComPtr<IDXGIFactory4> dxgiFactory4;
- winrt::check_hresult(dxgiFactory.As(&dxgiFactory4));
-
- // Retrieve the adapter specified by the holographic space.
- winrt::check_hresult(
- dxgiFactory4->EnumAdapterByLuid(id, IID_PPV_ARGS(&m_dxgiAdapter)));
- } else {
- m_dxgiAdapter.Reset();
- }
-
- CreateDeviceResources();
-
- m_holographicSpace.SetDirect3D11Device(m_d3dInteropDevice);
-}
-
-// Configures the Direct3D device, and stores handles to it and the device
-// context.
-void DX::DeviceResources::CreateDeviceResources() {
- // This flag adds support for surfaces with a different color channel ordering
- // than the API default. It is required for compatibility with Direct2D.
- UINT creationFlags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
-
-#if defined(_DEBUG)
- if (DX::SdkLayersAvailable()) {
- // If the project is in a debug build, enable debugging via SDK Layers with
- // this flag.
- creationFlags |= D3D11_CREATE_DEVICE_DEBUG;
- }
-#endif
-
- // This array defines the set of DirectX hardware feature levels this app will
- // support. Note the ordering should be preserved. Note that HoloLens supports
- // feature level 11.1. The HoloLens emulator is also capable of running on
- // graphics cards starting with feature level 10.0.
- D3D_FEATURE_LEVEL featureLevels[] = {
- D3D_FEATURE_LEVEL_12_1, D3D_FEATURE_LEVEL_12_0, D3D_FEATURE_LEVEL_11_1,
- D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_1, D3D_FEATURE_LEVEL_10_0};
-
- // Create the Direct3D 11 API device object and a corresponding context.
- ComPtr<ID3D11Device> device;
- ComPtr<ID3D11DeviceContext> context;
-
- const D3D_DRIVER_TYPE driverType = m_dxgiAdapter == nullptr
- ? D3D_DRIVER_TYPE_HARDWARE
- : D3D_DRIVER_TYPE_UNKNOWN;
- const HRESULT hr = D3D11CreateDevice(
- m_dxgiAdapter.Get(), // Either nullptr, or the primary adapter determined
- // by Windows Holographic.
- driverType, // Create a device using the hardware graphics driver.
- 0, // Should be 0 unless the driver is D3D_DRIVER_TYPE_SOFTWARE.
- creationFlags, // Set debug and Direct2D compatibility flags.
- featureLevels, // List of feature levels this app can support.
- ARRAYSIZE(featureLevels), // Size of the list above.
- D3D11_SDK_VERSION, // Always set this to D3D11_SDK_VERSION for Windows
- // Runtime apps.
- &device, // Returns the Direct3D device created.
- &m_d3dFeatureLevel, // Returns feature level of device created.
- &context // Returns the device immediate context.
- );
-
- if (FAILED(hr)) {
- // If the initialization fails, fall back to the WARP device.
- // For more information on WARP, see:
- // http://go.microsoft.com/fwlink/?LinkId=286690
- winrt::check_hresult(D3D11CreateDevice(
- nullptr, // Use the default DXGI adapter for WARP.
- D3D_DRIVER_TYPE_WARP, // Create a WARP device instead of a hardware
- // device.
- 0, creationFlags, featureLevels, ARRAYSIZE(featureLevels),
- D3D11_SDK_VERSION, &device, &m_d3dFeatureLevel, &context));
- }
-
- // Store pointers to the Direct3D device and immediate context.
- winrt::check_hresult(device.As(&m_d3dDevice));
- winrt::check_hresult(context.As(&m_d3dContext));
-
- // Acquire the DXGI interface for the Direct3D device.
- ComPtr<IDXGIDevice3> dxgiDevice;
- winrt::check_hresult(m_d3dDevice.As(&dxgiDevice));
-
- // Wrap the native device using a WinRT interop object.
- winrt::com_ptr<::IInspectable> object;
- winrt::check_hresult(CreateDirect3D11DeviceFromDXGIDevice(
- dxgiDevice.Get(),
- reinterpret_cast<IInspectable **>(winrt::put_abi(object))));
- m_d3dInteropDevice = object.as<IDirect3DDevice>();
-
- // Cache the DXGI adapter.
- // This is for the case of no preferred DXGI adapter, or fallback to WARP.
- ComPtr<IDXGIAdapter> dxgiAdapter;
- winrt::check_hresult(dxgiDevice->GetAdapter(&dxgiAdapter));
- winrt::check_hresult(dxgiAdapter.As(&m_dxgiAdapter));
-
- // Check for device support for the optional feature that allows setting the
- // render target array index from the vertex shader stage.
- D3D11_FEATURE_DATA_D3D11_OPTIONS3 options;
- m_d3dDevice->CheckFeatureSupport(D3D11_FEATURE_D3D11_OPTIONS3, &options,
- sizeof(options));
- if (options.VPAndRTArrayIndexFromAnyShaderFeedingRasterizer) {
- m_supportsVprt = true;
- }
-}
-
-// Validates the back buffer for each HolographicCamera and recreates
-// resources for back buffers that have changed.
-// Locks the set of holographic camera resources until the function exits.
-void DX::DeviceResources::EnsureCameraResources(
- HolographicFrame frame, HolographicFramePrediction prediction) {
- UseHolographicCameraResources<void>(
- [this, frame,
- prediction](std::map<UINT32, std::unique_ptr<CameraResources>>
- &cameraResourceMap) {
- for (HolographicCameraPose const &cameraPose :
- prediction.CameraPoses()) {
- HolographicCameraRenderingParameters renderingParameters =
- frame.GetRenderingParameters(cameraPose);
- CameraResources *pCameraResources =
- cameraResourceMap[cameraPose.HolographicCamera().Id()].get();
-
- pCameraResources->CreateResourcesForBackBuffer(this,
- renderingParameters);
- }
- });
-}
-
-// Prepares to allocate resources and adds resource views for a camera.
-// Locks the set of holographic camera resources until the function exits.
-void DX::DeviceResources::AddHolographicCamera(HolographicCamera camera) {
- UseHolographicCameraResources<void>(
- [this, camera](std::map<UINT32, std::unique_ptr<CameraResources>>
- &cameraResourceMap) {
- cameraResourceMap[camera.Id()] =
- std::make_unique<CameraResources>(camera);
- });
-}
-
-// Deallocates resources for a camera and removes the camera from the set.
-// Locks the set of holographic camera resources until the function exits.
-void DX::DeviceResources::RemoveHolographicCamera(HolographicCamera camera) {
- UseHolographicCameraResources<void>(
- [this, camera](std::map<UINT32, std::unique_ptr<CameraResources>>
- &cameraResourceMap) {
- CameraResources *pCameraResources =
- cameraResourceMap[camera.Id()].get();
-
- if (pCameraResources != nullptr) {
- pCameraResources->ReleaseResourcesForBackBuffer(this);
- cameraResourceMap.erase(camera.Id());
- }
- });
-}
-
-// Recreate all device resources and set them back to the current state.
-// Locks the set of holographic camera resources until the function exits.
-void DX::DeviceResources::HandleDeviceLost() {
- if (m_deviceNotify != nullptr) {
- m_deviceNotify->OnDeviceLost();
- }
-
- UseHolographicCameraResources<void>(
- [this](std::map<UINT32, std::unique_ptr<CameraResources>>
- &cameraResourceMap) {
- for (auto &pair : cameraResourceMap) {
- CameraResources *pCameraResources = pair.second.get();
- pCameraResources->ReleaseResourcesForBackBuffer(this);
- }
- });
-
- InitializeUsingHolographicSpace();
-
- if (m_deviceNotify != nullptr) {
- m_deviceNotify->OnDeviceRestored();
- }
-}
-
-// Register our DeviceNotify to be informed on device lost and creation.
-void DX::DeviceResources::RegisterDeviceNotify(
- DX::IDeviceNotify *deviceNotify) {
- m_deviceNotify = deviceNotify;
-}
-
-// Call this method when the app suspends. It provides a hint to the driver that
-// the app is entering an idle state and that temporary buffers can be reclaimed
-// for use by other apps.
-void DX::DeviceResources::Trim() {
- m_d3dContext->ClearState();
-
- ComPtr<IDXGIDevice3> dxgiDevice;
- winrt::check_hresult(m_d3dDevice.As(&dxgiDevice));
- dxgiDevice->Trim();
-}
-
-// Present the contents of the swap chain to the screen.
-// Locks the set of holographic camera resources until the function exits.
-void DX::DeviceResources::Present(HolographicFrame frame) {
- // By default, this API waits for the frame to finish before it returns.
- // Holographic apps should wait for the previous frame to finish before
- // starting work on a new frame. This allows for better results from
- // holographic frame predictions.
- HolographicFramePresentResult presentResult =
- frame.PresentUsingCurrentPrediction();
-
- // The PresentUsingCurrentPrediction API will detect when the graphics device
- // changes or becomes invalid. When this happens, it is considered a Direct3D
- // device lost scenario.
- if (presentResult == HolographicFramePresentResult::DeviceRemoved) {
- // The Direct3D device, context, and resources should be recreated.
- HandleDeviceLost();
- }
-}