1 // 2 // Copyright 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, 19 public std::enable_shared_from_this<SwapChainPanelNativeWindow> 20 { 21 public: 22 ~SwapChainPanelNativeWindow(); 23 24 bool initialize(EGLNativeWindowType window, IPropertySet *propertySet) override; 25 HRESULT createSwapChain(ID3D11Device *device, 26 IDXGIFactory2 *factory, 27 DXGI_FORMAT format, 28 unsigned int width, 29 unsigned int height, 30 bool containsAlpha, 31 IDXGISwapChain1 **swapChain) override; 32 33 protected: 34 HRESULT scaleSwapChain(const Size &windowSize, const RECT &clientRect) override; 35 36 bool registerForSizeChangeEvents(); 37 void unregisterForSizeChangeEvents(); 38 39 private: 40 ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> mSwapChainPanel; 41 ComPtr<ABI::Windows::UI::Core::ICoreDispatcher> mSwapChainPanelDispatcher; 42 ComPtr<IMap<HSTRING, IInspectable *>> mPropertyMap; 43 ComPtr<IDXGISwapChain1> mSwapChain; 44 }; 45 46 __declspec(uuid("8ACBD974-8187-4508-AD80-AEC77F93CF36")) class SwapChainPanelSizeChangedHandler 47 : public Microsoft::WRL::RuntimeClass< 48 Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::ClassicCom>, 49 ABI::Windows::UI::Xaml::ISizeChangedEventHandler> 50 { 51 public: SwapChainPanelSizeChangedHandler()52 SwapChainPanelSizeChangedHandler() {} RuntimeClassInitialize(std::shared_ptr<InspectableNativeWindow> host)53 HRESULT RuntimeClassInitialize(std::shared_ptr<InspectableNativeWindow> host) 54 { 55 if (!host) 56 { 57 return E_INVALIDARG; 58 } 59 60 mHost = host; 61 return S_OK; 62 } 63 64 // ISizeChangedEventHandler IFACEMETHOD(Invoke)65 IFACEMETHOD(Invoke) 66 (IInspectable *sender, ABI::Windows::UI::Xaml::ISizeChangedEventArgs *sizeChangedEventArgs) 67 { 68 std::shared_ptr<InspectableNativeWindow> host = mHost.lock(); 69 if (host) 70 { 71 // The size of the ISwapChainPanel control is returned in DIPs. 72 // We are keeping these in dips because the swapchain created for composition 73 // also uses dip units. This keeps dimensions, viewports, etc in the same unit. 74 // XAML Clients of the ISwapChainPanel are required to use dips to define their 75 // layout sizes as well. 76 ABI::Windows::Foundation::Size newSize; 77 HRESULT result = sizeChangedEventArgs->get_NewSize(&newSize); 78 if (SUCCEEDED(result)) 79 { 80 host->setNewClientSize(newSize); 81 } 82 } 83 84 return S_OK; 85 } 86 87 private: 88 std::weak_ptr<InspectableNativeWindow> mHost; 89 }; 90 91 HRESULT GetSwapChainPanelSize( 92 const ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> &swapChainPanel, 93 const ComPtr<ABI::Windows::UI::Core::ICoreDispatcher> &dispatcher, 94 Size *windowSize); 95 } // namespace rx 96 #endif // LIBANGLE_RENDERER_D3D_D3D11_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_ 97