1 // 2 // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 7 // SwapChainPanelNativeWindow.h: NativeWindow for managing ISwapChainPanel native window types. 8 9 #ifndef LIBANGLE_RENDERER_D3D_D3D11_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_ 10 #define LIBANGLE_RENDERER_D3D_D3D11_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_ 11 12 #include "libANGLE/renderer/d3d/d3d11/winrt/InspectableNativeWindow.h" 13 14 #include <memory> 15 16 namespace rx 17 { 18 class SwapChainPanelNativeWindow : public InspectableNativeWindow, public std::enable_shared_from_this<SwapChainPanelNativeWindow> 19 { 20 public: 21 ~SwapChainPanelNativeWindow(); 22 23 bool initialize(EGLNativeWindowType window, IPropertySet *propertySet) override; 24 HRESULT createSwapChain(ID3D11Device *device, 25 IDXGIFactory2 *factory, 26 DXGI_FORMAT format, 27 unsigned int width, 28 unsigned int height, 29 bool containsAlpha, 30 IDXGISwapChain1 **swapChain) override; 31 32 protected: 33 HRESULT scaleSwapChain(const Size &windowSize, const RECT &clientRect) override; 34 35 bool registerForSizeChangeEvents(); 36 void unregisterForSizeChangeEvents(); 37 38 private: 39 ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> mSwapChainPanel; 40 ComPtr<ABI::Windows::UI::Core::ICoreDispatcher> mSwapChainPanelDispatcher; 41 ComPtr<IMap<HSTRING, IInspectable*>> mPropertyMap; 42 ComPtr<IDXGISwapChain1> mSwapChain; 43 }; 44 45 [uuid(8ACBD974-8187-4508-AD80-AEC77F93CF36)] 46 class SwapChainPanelSizeChangedHandler : 47 public Microsoft::WRL::RuntimeClass<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::ClassicCom>, ABI::Windows::UI::Xaml::ISizeChangedEventHandler> 48 { 49 public: SwapChainPanelSizeChangedHandler()50 SwapChainPanelSizeChangedHandler() { } RuntimeClassInitialize(std::shared_ptr<InspectableNativeWindow> host)51 HRESULT RuntimeClassInitialize(std::shared_ptr<InspectableNativeWindow> host) 52 { 53 if (!host) 54 { 55 return E_INVALIDARG; 56 } 57 58 mHost = host; 59 return S_OK; 60 } 61 62 // ISizeChangedEventHandler IFACEMETHOD(Invoke)63 IFACEMETHOD(Invoke)(IInspectable *sender, ABI::Windows::UI::Xaml::ISizeChangedEventArgs *sizeChangedEventArgs) 64 { 65 std::shared_ptr<InspectableNativeWindow> host = mHost.lock(); 66 if (host) 67 { 68 // The size of the ISwapChainPanel control is returned in DIPs. 69 // We are keeping these in dips because the swapchain created for composition 70 // also uses dip units. This keeps dimensions, viewports, etc in the same unit. 71 // XAML Clients of the ISwapChainPanel are required to use dips to define their 72 // layout sizes as well. 73 ABI::Windows::Foundation::Size newSize; 74 HRESULT result = sizeChangedEventArgs->get_NewSize(&newSize); 75 if (SUCCEEDED(result)) 76 { 77 host->setNewClientSize(newSize); 78 } 79 } 80 81 return S_OK; 82 } 83 84 private: 85 std::weak_ptr<InspectableNativeWindow> mHost; 86 }; 87 88 HRESULT GetSwapChainPanelSize( 89 const ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> &swapChainPanel, 90 const ComPtr<ABI::Windows::UI::Core::ICoreDispatcher> &dispatcher, 91 Size *windowSize); 92 } 93 #endif // LIBANGLE_RENDERER_D3D_D3D11_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_ 94