1 files changed, 200 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/common/winrt/CoreWindowNativeWindow.cpp b/src/3rdparty/angle/src/common/winrt/CoreWindowNativeWindow.cpp
new file mode 100644
index 0000000000..9b65c15625
--- /dev/null
+++ b/src/3rdparty/angle/src/common/winrt/CoreWindowNativeWindow.cpp
@@ -0,0 +1,200 @@
+//
+// 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.
+//
+
+// CoreWindowNativeWindow.cpp: NativeWindow for managing ICoreWindow native window types.
+
+#include <algorithm>
+#include "common/winrt/CoreWindowNativeWindow.h"
+using namespace ABI::Windows::Foundation::Collections;
+
+namespace rx
+{
+
+typedef ITypedEventHandler<ABI::Windows::UI::Core::CoreWindow *, ABI::Windows::UI::Core::WindowSizeChangedEventArgs *> SizeChangedHandler;
+
+CoreWindowNativeWindow::~CoreWindowNativeWindow()
+{
+    unregisterForSizeChangeEvents();
+}
+
+bool CoreWindowNativeWindow::initialize(EGLNativeWindowType window, EGLNativeDisplayType display, IPropertySet *propertySet)
+{
+    ComPtr<IPropertySet> props = propertySet;
+    ComPtr<IInspectable> win = window;
+    ComPtr<IInspectable> displayInformation = display;
+    SIZE swapChainSize = {};
+    bool swapChainSizeSpecified = false;
+    HRESULT result = S_OK;
+
+    // IPropertySet is an optional parameter and can be null.
+    // If one is specified, cache as an IMap and read the properties
+    // used for initial host initialization.
+    if (propertySet)
+    {
+        result = props.As(&mPropertyMap);
+        if (SUCCEEDED(result))
+        {
+            // The EGLRenderSurfaceSizeProperty is optional and may be missing.  The IPropertySet
+            // was prevalidated to contain the EGLNativeWindowType before being passed to
+            // this host.
+            result = GetOptionalSizePropertyValue(mPropertyMap, EGLRenderSurfaceSizeProperty, &swapChainSize, &swapChainSizeSpecified);
+        }
+    }
+
+    if (SUCCEEDED(result))
+    {
+        result = win.As(&mCoreWindow);
+    }
+
+    if (SUCCEEDED(result))
+    {
+        result = displayInformation.As(&mDisplayInformation);
+    }
+
+    if (SUCCEEDED(result))
+    {
+#if WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP
+        ComPtr<ABI::Windows::Graphics::Display::IDisplayInformation2> displayInformation2;
+        result = mDisplayInformation.As(&displayInformation2);
+        ASSERT(SUCCEEDED(result));
+
+        result = displayInformation2->get_RawPixelsPerViewPixel(&mScaleFactor);
+        ASSERT(SUCCEEDED(result));
+#else
+        ABI::Windows::Graphics::Display::ResolutionScale resolutionScale;
+        result = mDisplayInformation->get_ResolutionScale(&resolutionScale);
+        ASSERT(SUCCEEDED(result));
+
+        mScaleFactor = DOUBLE(resolutionScale) / 100.0;
+#endif
+    }
+
+    if (SUCCEEDED(result))
+    {
+        // If a swapchain size is specfied, then the automatic resize
+        // behaviors implemented by the host should be disabled.  The swapchain
+        // will be still be scaled when being rendered to fit the bounds
+        // of the host.
+        // Scaling of the swapchain output occurs automatically because if
+        // the scaling mode setting DXGI_SCALING_STRETCH on the swapchain.
+        if (swapChainSizeSpecified)
+        {
+            mClientRect = { 0, 0, swapChainSize.cx, swapChainSize.cy };
+            mSupportsSwapChainResize = false;
+        }
+        else
+        {
+            ABI::Windows::Foundation::Rect rect;
+            HRESULT result = mCoreWindow->get_Bounds(&rect);
+            if (SUCCEEDED(result))
+            {
+                LONG width = std::floor(rect.Width * mScaleFactor + 0.5);
+                LONG height = std::floor(rect.Height * mScaleFactor + 0.5);
+                mClientRect = { 0, 0, width, height };
+            }
+        }
+    }
+
+    if (SUCCEEDED(result))
+    {
+        mNewClientRect = mClientRect;
+        mClientRectChanged = false;
+        return registerForSizeChangeEvents();
+    }
+
+    return false;
+}
+
+bool CoreWindowNativeWindow::registerForSizeChangeEvents()
+{
+    HRESULT result = mCoreWindow->add_SizeChanged(Callback<SizeChangedHandler>(this, &CoreWindowNativeWindow::onSizeChanged).Get(),
+                                                  &mSizeChangedEventToken);
+
+    if (SUCCEEDED(result))
+    {
+        return true;
+    }
+
+    return false;
+}
+
+void CoreWindowNativeWindow::unregisterForSizeChangeEvents()
+{
+    if (mCoreWindow)
+    {
+        (void)mCoreWindow->remove_SizeChanged(mSizeChangedEventToken);
+    }
+    mSizeChangedEventToken.value = 0;
+}
+
+HRESULT CoreWindowNativeWindow::createSwapChain(ID3D11Device *device, DXGIFactory *factory, DXGI_FORMAT format, unsigned int width, unsigned int height, DXGISwapChain **swapChain)
+{
+    if (device == NULL || factory == NULL || swapChain == NULL || width == 0 || height == 0)
+    {
+        return E_INVALIDARG;
+    }
+
+    DXGI_SWAP_CHAIN_DESC1 swapChainDesc = { 0 };
+    swapChainDesc.Width = width;
+    swapChainDesc.Height = height;
+    swapChainDesc.Format = format;
+    swapChainDesc.Stereo = FALSE;
+    swapChainDesc.SampleDesc.Count = 1;
+    swapChainDesc.SampleDesc.Quality = 0;
+    swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_BACK_BUFFER;
+    swapChainDesc.BufferCount = 2;
+    swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
+    swapChainDesc.Scaling = DXGI_SCALING_STRETCH;
+
+    *swapChain = nullptr;
+
+    ComPtr<IDXGISwapChain1> newSwapChain;
+    HRESULT result = factory->CreateSwapChainForCoreWindow(device, mCoreWindow.Get(), &swapChainDesc, nullptr, newSwapChain.ReleaseAndGetAddressOf());
+    if (SUCCEEDED(result))
+    {
+
+#if (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) // This block is disabled for Qt applications, as the resize events are expected
+        // Test if swapchain supports resize.  On Windows Phone devices, this will return DXGI_ERROR_UNSUPPORTED.  On
+        // other devices DXGI_ERROR_INVALID_CALL should be returned because the combination of flags passed
+        // (DXGI_SWAP_CHAIN_FLAG_NONPREROTATED | DXGI_SWAP_CHAIN_FLAG_GDI_COMPATIBLE) are invalid flag combinations.
+        if (newSwapChain->ResizeBuffers(swapChainDesc.BufferCount, swapChainDesc.Width, swapChainDesc.Height, swapChainDesc.Format, DXGI_SWAP_CHAIN_FLAG_NONPREROTATED | DXGI_SWAP_CHAIN_FLAG_GDI_COMPATIBLE) == DXGI_ERROR_UNSUPPORTED)
+        {
+            mSupportsSwapChainResize = false;
+        }
+#endif // (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP)
+
+        result = newSwapChain.CopyTo(swapChain);
+    }
+
+    if (SUCCEEDED(result))
+    {
+        // If automatic swapchain resize behaviors have been disabled, then
+        // unregister for the resize change events.
+        if (mSupportsSwapChainResize == false)
+        {
+            unregisterForSizeChangeEvents();
+        }
+    }
+
+    return result;
+}
+
+// Basically, this shouldn't be used on Phone
+HRESULT CoreWindowNativeWindow::onSizeChanged(ABI::Windows::UI::Core::ICoreWindow *, ABI::Windows::UI::Core::IWindowSizeChangedEventArgs *e)
+{
+    ABI::Windows::Foundation::Size size;
+    if (SUCCEEDED(e->get_Size(&size)))
+    {
+        SIZE windowSizeInPixels = {
+            std::floor(size.Width * mScaleFactor + 0.5),
+            std::floor(size.Height * mScaleFactor + 0.5)
+        };
+        setNewClientSize(windowSizeInPixels);
+    }
+
+    return S_OK;
+}
+}