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diff --git a/src/VBox/Devices/Graphics/shaderlib/wine/include/wownt32.h b/src/VBox/Devices/Graphics/shaderlib/wine/include/wownt32.h
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index 00000000..00227373
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+++ b/src/VBox/Devices/Graphics/shaderlib/wine/include/wownt32.h
@@ -0,0 +1,167 @@
+/*
+ * WOW Generic Thunk API
+ *
+ * Copyright (C) 1999 Ulrich Weigand
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/*
+ * Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
+ * other than GPL or LGPL is available it will apply instead, Oracle elects to use only
+ * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
+ * a choice of LGPL license versions is made available with the language indicating
+ * that LGPLv2 or any later version may be used, or where a choice of which version
+ * of the LGPL is applied is otherwise unspecified.
+ */
+
+#ifndef _WOWNT32_H_
+#define _WOWNT32_H_
+
+#ifdef __WINESRC__
+/* under Wine use the kernel functions directly so we don't have to import wow32 */
+#define WOWCallback16 K32WOWCallback16
+#define WOWCallback16Ex K32WOWCallback16Ex
+#define WOWDirectedYield16 K32WOWDirectedYield16
+#define WOWGetVDMPointer K32WOWGetVDMPointer
+#define WOWGetVDMPointerFix K32WOWGetVDMPointerFix
+#define WOWGetVDMPointerUnfix K32WOWGetVDMPointerUnfix
+#define WOWGlobalAlloc16 K32WOWGlobalAlloc16
+#define WOWGlobalAllocLock16 K32WOWGlobalAllocLock16
+#define WOWGlobalFree16 K32WOWGlobalFree16
+#define WOWGlobalLock16 K32WOWGlobalLock16
+#define WOWGlobalLockSize16 K32WOWGlobalLockSize16
+#define WOWGlobalUnlock16 K32WOWGlobalUnlock16
+#define WOWGlobalUnlockFree16 K32WOWGlobalUnlockFree16
+#define WOWHandle16 K32WOWHandle16
+#define WOWHandle32 K32WOWHandle32
+#define WOWYield16 K32WOWYield16
+#endif
+
+LPVOID WINAPI WOWGetVDMPointer(DWORD,DWORD,BOOL);
+LPVOID WINAPI WOWGetVDMPointerFix(DWORD,DWORD,BOOL);
+VOID WINAPI WOWGetVDMPointerUnfix(DWORD);
+
+WORD WINAPI WOWGlobalAlloc16(WORD,DWORD);
+WORD WINAPI WOWGlobalFree16(WORD);
+DWORD WINAPI WOWGlobalLock16(WORD);
+BOOL WINAPI WOWGlobalUnlock16(WORD);
+DWORD WINAPI WOWGlobalAllocLock16(WORD,DWORD,WORD *);
+WORD WINAPI WOWGlobalUnlockFree16(DWORD);
+DWORD WINAPI WOWGlobalLockSize16(WORD,PDWORD);
+
+VOID WINAPI WOWYield16(VOID);
+VOID WINAPI WOWDirectedYield16(WORD);
+
+typedef enum
+{
+ WOW_TYPE_HWND,
+ WOW_TYPE_HMENU,
+ WOW_TYPE_HDWP,
+ WOW_TYPE_HDROP,
+ WOW_TYPE_HDC,
+ WOW_TYPE_HFONT,
+ WOW_TYPE_HMETAFILE,
+ WOW_TYPE_HRGN,
+ WOW_TYPE_HBITMAP,
+ WOW_TYPE_HBRUSH,
+ WOW_TYPE_HPALETTE,
+ WOW_TYPE_HPEN,
+ WOW_TYPE_HACCEL,
+ WOW_TYPE_HTASK,
+ WOW_TYPE_FULLHWND
+
+} WOW_HANDLE_TYPE;
+
+HANDLE WINAPI WOWHandle32(WORD,WOW_HANDLE_TYPE);
+WORD WINAPI WOWHandle16(HANDLE,WOW_HANDLE_TYPE);
+
+#ifdef __WINESRC__
+/* under Wine we use optimized versions where we can */
+#define HWND_32(h16) ((HWND) (ULONG_PTR)(h16))
+#define HMENU_32(h16) ((HMENU) (ULONG_PTR)(h16))
+#define HDWP_32(h16) ((HDWP) (ULONG_PTR)(h16))
+#define HDROP_32(h16) ((HDROP) (ULONG_PTR)(h16))
+#define HDC_32(h16) ((HDC) (ULONG_PTR)(h16))
+#define HFONT_32(h16) ((HFONT) (ULONG_PTR)(h16))
+#define HRGN_32(h16) ((HRGN) (ULONG_PTR)(h16))
+#define HBITMAP_32(h16) ((HBITMAP) (ULONG_PTR)(h16))
+#define HBRUSH_32(h16) ((HBRUSH) (ULONG_PTR)(h16))
+#define HPALETTE_32(h16) ((HPALETTE) (ULONG_PTR)(h16))
+#define HPEN_32(h16) ((HPEN) (ULONG_PTR)(h16))
+#define HACCEL_32(h16) ((HACCEL) (ULONG_PTR)(h16))
+
+#define HWND_16(h32) (LOWORD(h32))
+#define HMENU_16(h32) (LOWORD(h32))
+#define HDWP_16(h32) (LOWORD(h32))
+#define HDROP_16(h32) (LOWORD(h32))
+#define HDC_16(h32) (LOWORD(h32))
+#define HFONT_16(h32) (LOWORD(h32))
+#define HRGN_16(h32) (LOWORD(h32))
+#define HBITMAP_16(h32) (LOWORD(h32))
+#define HBRUSH_16(h32) (LOWORD(h32))
+#define HPALETTE_16(h32) (LOWORD(h32))
+#define HPEN_16(h32) (LOWORD(h32))
+#define HACCEL_16(h32) (LOWORD(h32))
+
+#else /* __WINESRC__ */
+
+#define HWND_32(h16) ((HWND) (WOWHandle32(h16, WOW_TYPE_HWND)))
+#define HMENU_32(h16) ((HMENU) (WOWHandle32(h16, WOW_TYPE_HMENU)))
+#define HDWP_32(h16) ((HDWP) (WOWHandle32(h16, WOW_TYPE_HDWP)))
+#define HDROP_32(h16) ((HDROP) (WOWHandle32(h16, WOW_TYPE_HDROP)))
+#define HDC_32(h16) ((HDC) (WOWHandle32(h16, WOW_TYPE_HDC)))
+#define HFONT_32(h16) ((HFONT) (WOWHandle32(h16, WOW_TYPE_HFONT)))
+#define HRGN_32(h16) ((HRGN) (WOWHandle32(h16, WOW_TYPE_HRGN)))
+#define HBITMAP_32(h16) ((HBITMAP) (WOWHandle32(h16, WOW_TYPE_HBITMAP)))
+#define HBRUSH_32(h16) ((HBRUSH) (WOWHandle32(h16, WOW_TYPE_HBRUSH)))
+#define HPALETTE_32(h16) ((HPALETTE) (WOWHandle32(h16, WOW_TYPE_HPALETTE)))
+#define HPEN_32(h16) ((HPEN) (WOWHandle32(h16, WOW_TYPE_HPEN)))
+#define HACCEL_32(h16) ((HACCEL) (WOWHandle32(h16, WOW_TYPE_HACCEL)))
+
+#define HWND_16(h32) (WOWHandle16(h32, WOW_TYPE_HWND))
+#define HMENU_16(h32) (WOWHandle16(h32, WOW_TYPE_HMENU))
+#define HDWP_16(h32) (WOWHandle16(h32, WOW_TYPE_HDWP))
+#define HDROP_16(h32) (WOWHandle16(h32, WOW_TYPE_HDROP))
+#define HDC_16(h32) (WOWHandle16(h32, WOW_TYPE_HDC))
+#define HFONT_16(h32) (WOWHandle16(h32, WOW_TYPE_HFONT))
+#define HRGN_16(h32) (WOWHandle16(h32, WOW_TYPE_HRGN))
+#define HBITMAP_16(h32) (WOWHandle16(h32, WOW_TYPE_HBITMAP))
+#define HBRUSH_16(h32) (WOWHandle16(h32, WOW_TYPE_HBRUSH))
+#define HPALETTE_16(h32) (WOWHandle16(h32, WOW_TYPE_HPALETTE))
+#define HPEN_16(h32) (WOWHandle16(h32, WOW_TYPE_HPEN))
+#define HACCEL_16(h32) (WOWHandle16(h32, WOW_TYPE_HACCEL))
+
+#endif /* __WINESRC__ */
+
+#define HMETAFILE_32(h16) ((HMETAFILE)(WOWHandle32(h16, WOW_TYPE_HMETAFILE)))
+#define HTASK_32(h16) ((DWORD)(WOWHandle32(h16, WOW_TYPE_HTASK)))
+#define FULLHWND_32(h16) ((HWND)(WOWHandle32(h16, WOW_TYPE_FULLHWND)))
+
+#define HMETAFILE_16(h32) (WOWHandle16(h32, WOW_TYPE_HMETAFILE))
+#define HTASK_16(h32) (WOWHandle16((HANDLE)(h32), WOW_TYPE_HTASK))
+
+#define WCB16_PASCAL 0
+#define WCB16_CDECL 1
+#define WCB16_MAX_CBARGS 16
+
+/* Wine extensions: call register function, context ptr is passed in the return value LPDWORD */
+#define WCB16_REGS 2
+#define WCB16_REGS_LONG 4 /* function uses 32-bit lret */
+
+DWORD WINAPI WOWCallback16(DWORD,DWORD);
+BOOL WINAPI WOWCallback16Ex(DWORD,DWORD,DWORD,LPVOID,LPDWORD);
+
+#endif /* _WOWNT32_H_ */