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diff --git a/vendor/SDL/include/SDL_shape.h b/vendor/SDL/include/SDL_shape.h
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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2017 Sam Lantinga <[email protected]>
+
+  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.
+*/
+
+#ifndef SDL_shape_h_
+#define SDL_shape_h_
+
+#include "SDL_stdinc.h"
+#include "SDL_pixels.h"
+#include "SDL_rect.h"
+#include "SDL_surface.h"
+#include "SDL_video.h"
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** \file SDL_shape.h
+ *
+ * Header file for the shaped window API.
+ */
+
+#define SDL_NONSHAPEABLE_WINDOW -1
+#define SDL_INVALID_SHAPE_ARGUMENT -2
+#define SDL_WINDOW_LACKS_SHAPE -3
+
+/**
+ *  \brief Create a window that can be shaped with the specified position, dimensions, and flags.
+ *
+ *  \param title The title of the window, in UTF-8 encoding.
+ *  \param x     The x position of the window, ::SDL_WINDOWPOS_CENTERED, or
+ *               ::SDL_WINDOWPOS_UNDEFINED.
+ *  \param y     The y position of the window, ::SDL_WINDOWPOS_CENTERED, or
+ *               ::SDL_WINDOWPOS_UNDEFINED.
+ *  \param w     The width of the window.
+ *  \param h     The height of the window.
+ *  \param flags The flags for the window, a mask of SDL_WINDOW_BORDERLESS with any of the following:
+ *               ::SDL_WINDOW_OPENGL,     ::SDL_WINDOW_INPUT_GRABBED,
+ *               ::SDL_WINDOW_HIDDEN,     ::SDL_WINDOW_RESIZABLE,
+ *               ::SDL_WINDOW_MAXIMIZED,  ::SDL_WINDOW_MINIMIZED,
+ *       ::SDL_WINDOW_BORDERLESS is always set, and ::SDL_WINDOW_FULLSCREEN is always unset.
+ *
+ *  \return The window created, or NULL if window creation failed.
+ *
+ *  \sa SDL_DestroyWindow()
+ */
+extern DECLSPEC SDL_Window * SDLCALL SDL_CreateShapedWindow(const char *title,unsigned int x,unsigned int y,unsigned int w,unsigned int h,Uint32 flags);
+
+/**
+ * \brief Return whether the given window is a shaped window.
+ *
+ * \param window The window to query for being shaped.
+ *
+ * \return SDL_TRUE if the window is a window that can be shaped, SDL_FALSE if the window is unshaped or NULL.
+ *
+ * \sa SDL_CreateShapedWindow
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_IsShapedWindow(const SDL_Window *window);
+
+/** \brief An enum denoting the specific type of contents present in an SDL_WindowShapeParams union. */
+typedef enum {
+    /** \brief The default mode, a binarized alpha cutoff of 1. */
+    ShapeModeDefault,
+    /** \brief A binarized alpha cutoff with a given integer value. */
+    ShapeModeBinarizeAlpha,
+    /** \brief A binarized alpha cutoff with a given integer value, but with the opposite comparison. */
+    ShapeModeReverseBinarizeAlpha,
+    /** \brief A color key is applied. */
+    ShapeModeColorKey
+} WindowShapeMode;
+
+#define SDL_SHAPEMODEALPHA(mode) (mode == ShapeModeDefault || mode == ShapeModeBinarizeAlpha || mode == ShapeModeReverseBinarizeAlpha)
+
+/** \brief A union containing parameters for shaped windows. */
+typedef union {
+    /** \brief A cutoff alpha value for binarization of the window shape's alpha channel. */
+    Uint8 binarizationCutoff;
+    SDL_Color colorKey;
+} SDL_WindowShapeParams;
+
+/** \brief A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents. */
+typedef struct SDL_WindowShapeMode {
+    /** \brief The mode of these window-shape parameters. */
+    WindowShapeMode mode;
+    /** \brief Window-shape parameters. */
+    SDL_WindowShapeParams parameters;
+} SDL_WindowShapeMode;
+
+/**
+ * \brief Set the shape and parameters of a shaped window.
+ *
+ * \param window The shaped window whose parameters should be set.
+ * \param shape A surface encoding the desired shape for the window.
+ * \param shape_mode The parameters to set for the shaped window.
+ *
+ * \return 0 on success, SDL_INVALID_SHAPE_ARGUMENT on an invalid shape argument, or SDL_NONSHAPEABLE_WINDOW
+ *           if the SDL_Window given does not reference a valid shaped window.
+ *
+ * \sa SDL_WindowShapeMode
+ * \sa SDL_GetShapedWindowMode.
+ */
+extern DECLSPEC int SDLCALL SDL_SetWindowShape(SDL_Window *window,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode);
+
+/**
+ * \brief Get the shape parameters of a shaped window.
+ *
+ * \param window The shaped window whose parameters should be retrieved.
+ * \param shape_mode An empty shape-mode structure to fill, or NULL to check whether the window has a shape.
+ *
+ * \return 0 if the window has a shape and, provided shape_mode was not NULL, shape_mode has been filled with the mode
+ *           data, SDL_NONSHAPEABLE_WINDOW if the SDL_Window given is not a shaped window, or SDL_WINDOW_LACKS_SHAPE if
+ *           the SDL_Window given is a shapeable window currently lacking a shape.
+ *
+ * \sa SDL_WindowShapeMode
+ * \sa SDL_SetWindowShape
+ */
+extern DECLSPEC int SDLCALL SDL_GetShapedWindowMode(SDL_Window *window,SDL_WindowShapeMode *shape_mode);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include "close_code.h"
+
+#endif /* SDL_shape_h_ */