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diff --git a/source/3rd-party/SDL2/src/haptic/windows/SDL_windowshaptic_c.h b/source/3rd-party/SDL2/src/haptic/windows/SDL_windowshaptic_c.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.
+*/
+#include "../../SDL_internal.h"
+
+#ifndef SDL_windowshaptic_c_h_
+#define SDL_windowshaptic_c_h_
+
+#include "SDL_thread.h"
+#include "../SDL_syshaptic.h"
+#include "../../core/windows/SDL_directx.h"
+#include "../../core/windows/SDL_xinput.h"
+
+/*
+ * Haptic system hardware data.
+ */
+struct haptic_hwdata
+{
+#if SDL_HAPTIC_DINPUT
+ LPDIRECTINPUTDEVICE8 device;
+#endif
+ DWORD axes[3]; /* Axes to use. */
+ SDL_bool is_joystick; /* Device is loaded as joystick. */
+ Uint8 bXInputHaptic; /* Supports force feedback via XInput. */
+ Uint8 userid; /* XInput userid index for this joystick */
+ SDL_Thread *thread;
+ SDL_mutex *mutex;
+ Uint32 stopTicks;
+ SDL_atomic_t stopThread;
+};
+
+
+/*
+ * Haptic system effect data.
+ */
+struct haptic_hweffect
+{
+#if SDL_HAPTIC_DINPUT
+ DIEFFECT effect;
+ LPDIRECTINPUTEFFECT ref;
+#endif
+#if SDL_HAPTIC_XINPUT
+ XINPUT_VIBRATION vibration;
+#endif
+};
+
+/*
+* List of available haptic devices.
+*/
+typedef struct SDL_hapticlist_item
+{
+ char *name;
+ SDL_Haptic *haptic;
+#if SDL_HAPTIC_DINPUT
+ DIDEVICEINSTANCE instance;
+ DIDEVCAPS capabilities;
+#endif
+ SDL_bool bXInputHaptic; /* Supports force feedback via XInput. */
+ Uint8 userid; /* XInput userid index for this joystick */
+ struct SDL_hapticlist_item *next;
+} SDL_hapticlist_item;
+
+extern SDL_hapticlist_item *SDL_hapticlist;
+
+extern int SDL_SYS_AddHapticDevice(SDL_hapticlist_item *item);
+extern int SDL_SYS_RemoveHapticDevice(SDL_hapticlist_item *prev, SDL_hapticlist_item *item);
+
+#endif /* SDL_windowshaptic_c_h_ */
+
+/* vi: set ts=4 sw=4 expandtab: */
+