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diff --git a/3rdparty/bgfx/3rdparty/glslang/glslang/OSDependent/Windows/ossource.cpp b/3rdparty/bgfx/3rdparty/glslang/glslang/OSDependent/Windows/ossource.cpp
new file mode 100644
index 00000000000..f71fac9cb61
--- /dev/null
+++ b/3rdparty/bgfx/3rdparty/glslang/glslang/OSDependent/Windows/ossource.cpp
@@ -0,0 +1,163 @@
+//
+//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
+//All rights reserved.
+//
+//Redistribution and use in source and binary forms, with or without
+//modification, are permitted provided that the following conditions
+//are met:
+//
+// Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+//
+// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+//POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include "../osinclude.h"
+
+#define STRICT
+#define VC_EXTRALEAN 1
+#include <windows.h>
+#include <cassert>
+#include <process.h>
+#include <psapi.h>
+#include <cstdio>
+#include <cstdint>
+
+//
+// This file contains the Window-OS-specific functions
+//
+
+#if !(defined(_WIN32) || defined(_WIN64))
+#error Trying to build a windows specific file in a non windows build.
+#endif
+
+namespace glslang {
+
+inline OS_TLSIndex ToGenericTLSIndex (DWORD handle)
+{
+ return (OS_TLSIndex)((uintptr_t)handle + 1);
+}
+
+inline DWORD ToNativeTLSIndex (OS_TLSIndex nIndex)
+{
+ return (DWORD)((uintptr_t)nIndex - 1);
+}
+
+//
+// Thread Local Storage Operations
+//
+OS_TLSIndex OS_AllocTLSIndex()
+{
+ DWORD dwIndex = TlsAlloc();
+ if (dwIndex == TLS_OUT_OF_INDEXES) {
+ assert(0 && "OS_AllocTLSIndex(): Unable to allocate Thread Local Storage");
+ return OS_INVALID_TLS_INDEX;
+ }
+
+ return ToGenericTLSIndex(dwIndex);
+}
+
+
+bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue)
+{
+ if (nIndex == OS_INVALID_TLS_INDEX) {
+ assert(0 && "OS_SetTLSValue(): Invalid TLS Index");
+ return false;
+ }
+
+ if (TlsSetValue(ToNativeTLSIndex(nIndex), lpvValue))
+ return true;
+ else
+ return false;
+}
+
+void* OS_GetTLSValue(OS_TLSIndex nIndex)
+{
+ assert(nIndex != OS_INVALID_TLS_INDEX);
+ return TlsGetValue(ToNativeTLSIndex(nIndex));
+}
+
+bool OS_FreeTLSIndex(OS_TLSIndex nIndex)
+{
+ if (nIndex == OS_INVALID_TLS_INDEX) {
+ assert(0 && "OS_SetTLSValue(): Invalid TLS Index");
+ return false;
+ }
+
+ if (TlsFree(ToNativeTLSIndex(nIndex)))
+ return true;
+ else
+ return false;
+}
+
+HANDLE GlobalLock;
+
+void InitGlobalLock()
+{
+ GlobalLock = CreateMutex(0, false, 0);
+}
+
+void GetGlobalLock()
+{
+ WaitForSingleObject(GlobalLock, INFINITE);
+}
+
+void ReleaseGlobalLock()
+{
+ ReleaseMutex(GlobalLock);
+}
+
+unsigned int __stdcall EnterGenericThread (void* entry)
+{
+ return ((TThreadEntrypoint)entry)(0);
+}
+
+void* OS_CreateThread(TThreadEntrypoint entry)
+{
+ return (void*)_beginthreadex(0, 0, EnterGenericThread, (void*)entry, 0, 0);
+}
+
+void OS_WaitForAllThreads(void* threads, int numThreads)
+{
+ WaitForMultipleObjects(numThreads, (HANDLE*)threads, true, INFINITE);
+}
+
+void OS_Sleep(int milliseconds)
+{
+ Sleep(milliseconds);
+}
+
+//#define DUMP_COUNTERS
+
+void OS_DumpMemoryCounters()
+{
+#ifdef DUMP_COUNTERS
+ PROCESS_MEMORY_COUNTERS counters;
+ GetProcessMemoryInfo(GetCurrentProcess(), &counters, sizeof(counters));
+ printf("Working set size: %d\n", counters.WorkingSetSize);
+#else
+ printf("Recompile with DUMP_COUNTERS defined to see counters.\n");
+#endif
+}
+
+} // namespace glslang