1 files changed, 79 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/common/winrt/SwapChainPanelNativeWindow.h b/src/3rdparty/angle/src/common/winrt/SwapChainPanelNativeWindow.h
new file mode 100644
index 0000000000..5bbf274e64
--- /dev/null
+++ b/src/3rdparty/angle/src/common/winrt/SwapChainPanelNativeWindow.h
@@ -0,0 +1,79 @@
+//
+// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// SwapChainPanelNativeWindow.h: NativeWindow for managing ISwapChainPanel native window types.
+
+#ifndef COMMON_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_
+#define COMMON_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_
+
+#include "common/winrt/InspectableNativeWindow.h"
+
+namespace rx
+{
+class SwapChainPanelNativeWindow : public InspectableNativeWindow, public std::enable_shared_from_this<SwapChainPanelNativeWindow>
+{
+  public:
+    ~SwapChainPanelNativeWindow();
+
+    bool initialize(EGLNativeWindowType window, EGLNativeDisplayType display, IPropertySet *propertySet);
+    bool registerForSizeChangeEvents();
+    void unregisterForSizeChangeEvents();
+    HRESULT createSwapChain(ID3D11Device *device, DXGIFactory *factory, DXGI_FORMAT format, unsigned int width, unsigned int height, DXGISwapChain **swapChain);
+    HRESULT scaleSwapChain(const SIZE &newSize);
+
+  private:
+    ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> mSwapChainPanel;
+    ComPtr<IMap<HSTRING, IInspectable*>> mPropertyMap;
+    ComPtr<DXGISwapChain> mSwapChain;
+};
+
+[uuid(8ACBD974-8187-4508-AD80-AEC77F93CF36)]
+class SwapChainPanelSizeChangedHandler :
+    public Microsoft::WRL::RuntimeClass<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::ClassicCom>, ABI::Windows::UI::Xaml::ISizeChangedEventHandler>
+{
+  public:
+    SwapChainPanelSizeChangedHandler() { }
+    HRESULT RuntimeClassInitialize(std::shared_ptr<InspectableNativeWindow> host)
+    {
+        if (!host)
+        {
+            return E_INVALIDARG;
+        }
+
+        mHost = host;
+        return S_OK;
+    }
+
+    // ISizeChangedEventHandler
+    IFACEMETHOD(Invoke)(IInspectable *sender, ABI::Windows::UI::Xaml::ISizeChangedEventArgs *sizeChangedEventArgs)
+    {
+        std::shared_ptr<InspectableNativeWindow> host = mHost.lock();
+        if (host)
+        {
+            // The size of the ISwapChainPanel control is returned in DIPs.
+            // We are keeping these in dips because the swapchain created for composition
+            // also uses dip units. This keeps dimensions, viewports, etc in the same unit.
+            // XAML Clients of the ISwapChainPanel are required to use dips to define their
+            // layout sizes as well.
+            ABI::Windows::Foundation::Size newSize;
+            HRESULT result = sizeChangedEventArgs->get_NewSize(&newSize);
+            if (SUCCEEDED(result))
+            {
+                SIZE windowSize = { lround(newSize.Width), lround(newSize.Height) };
+                host->setNewClientSize(windowSize);
+            }
+        }
+
+        return S_OK;
+    }
+
+  private:
+    std::weak_ptr<InspectableNativeWindow> mHost;
+};
+
+HRESULT GetSwapChainPanelSize(const ComPtr<ABI::Windows::UI::Xaml::Controls::ISwapChainPanel> &swapChainPanel, RECT *windowSize);
+}
+#endif // COMMON_WINRT_SWAPCHAINPANELNATIVEWINDOW_H_