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diff --git a/source/3rd-party/SDL2/src/video/winrt/SDL_winrtvideo_cpp.h b/source/3rd-party/SDL2/src/video/winrt/SDL_winrtvideo_cpp.h
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+/*
+ Simple DirectMedia Layer
+ Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+*/
+
+/* Windows includes: */
+#include <windows.h>
+#ifdef __cplusplus_winrt
+#include <agile.h>
+#endif
+
+/* SDL includes: */
+#include "SDL_video.h"
+#include "SDL_events.h"
+
+#if NTDDI_VERSION >= NTDDI_WINBLUE /* ApplicationView's functionality only becomes
+ useful for SDL in Win[Phone] 8.1 and up.
+ Plus, it is not available at all in WinPhone 8.0. */
+#define SDL_WINRT_USE_APPLICATIONVIEW 1
+#endif
+
+extern "C" {
+#include "../SDL_sysvideo.h"
+#include "../SDL_egl_c.h"
+}
+
+/* Private display data */
+typedef struct SDL_VideoData {
+ /* An object created by ANGLE/WinRT (OpenGL ES 2 for WinRT) that gets
+ * passed to eglGetDisplay and eglCreateWindowSurface:
+ */
+ IUnknown *winrtEglWindow;
+
+ /* Event token(s), for unregistering WinRT event handler(s).
+ These are just a struct with a 64-bit integer inside them
+ */
+ Windows::Foundation::EventRegistrationToken gameBarIsInputRedirectedToken;
+
+ /* A WinRT DisplayRequest, used for implementing SDL_*ScreenSaver() functions.
+ * This is really a pointer to a 'ABI::Windows::System::Display::IDisplayRequest *',
+ * It's casted to 'IUnknown *', to help with building SDL.
+ */
+ IUnknown *displayRequest;
+} SDL_VideoData;
+
+/* The global, WinRT, SDL Window.
+ For now, SDL/WinRT only supports one window (due to platform limitations of
+ WinRT.
+*/
+extern SDL_Window * WINRT_GlobalSDLWindow;
+
+/* Updates one or more SDL_Window flags, by querying the OS' native windowing APIs.
+ SDL_Window flags that can be updated should be specified in 'mask'.
+*/
+extern void WINRT_UpdateWindowFlags(SDL_Window * window, Uint32 mask);
+extern "C" Uint32 WINRT_DetectWindowFlags(SDL_Window * window); /* detects flags w/o applying them */
+
+/* Display mode internals */
+//typedef struct
+//{
+// Windows::Graphics::Display::DisplayOrientations currentOrientation;
+//} SDL_DisplayModeData;
+
+#ifdef __cplusplus_winrt
+
+/* A convenience macro to get a WinRT display property */
+#if NTDDI_VERSION > NTDDI_WIN8
+#define WINRT_DISPLAY_PROPERTY(NAME) (Windows::Graphics::Display::DisplayInformation::GetForCurrentView()->NAME)
+#else
+#define WINRT_DISPLAY_PROPERTY(NAME) (Windows::Graphics::Display::DisplayProperties::NAME)
+#endif
+
+/* Converts DIPS to/from physical pixels */
+#define WINRT_DIPS_TO_PHYSICAL_PIXELS(DIPS) ((int)(0.5f + (((float)(DIPS) * (float)WINRT_DISPLAY_PROPERTY(LogicalDpi)) / 96.f)))
+#define WINRT_PHYSICAL_PIXELS_TO_DIPS(PHYSPIX) (((float)(PHYSPIX) * 96.f)/WINRT_DISPLAY_PROPERTY(LogicalDpi))
+
+/* Internal window data */
+struct SDL_WindowData
+{
+ SDL_Window *sdlWindow;
+ Platform::Agile<Windows::UI::Core::CoreWindow> coreWindow;
+#ifdef SDL_VIDEO_OPENGL_EGL
+ EGLSurface egl_surface;
+#endif
+#if SDL_WINRT_USE_APPLICATIONVIEW
+ Windows::UI::ViewManagement::ApplicationView ^ appView;
+#endif
+};
+
+#endif // ifdef __cplusplus_winrt