1 files changed, 103 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/common/tls.cpp b/src/3rdparty/angle/src/common/tls.cpp
new file mode 100644
index 0000000000..c46fab5303
--- /dev/null
+++ b/src/3rdparty/angle/src/common/tls.cpp
@@ -0,0 +1,103 @@
+//
+// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// tls.cpp: Simple cross-platform interface for thread local storage.
+
+#include "common/tls.h"
+
+#include <assert.h>
+
+#if defined(ANGLE_PLATFORM_WINRT)
+#include <vector>
+std::vector<void *> *tls = nullptr;
+std::vector<TLSIndex> *freeIndices = nullptr;
+#endif
+
+TLSIndex CreateTLSIndex()
+{
+    TLSIndex index;
+
+#if defined(ANGLE_PLATFORM_WINRT)
+    if (!tls)
+        tls = new std::vector<void *>;
+    if (freeIndices && !freeIndices->empty()) {
+        index = freeIndices->back();
+        freeIndices->pop_back();
+        return index;
+    } else {
+        tls->push_back(nullptr);
+        return tls->size() - 1;
+    }
+#elif defined(ANGLE_PLATFORM_WINDOWS)
+    index = TlsAlloc();
+#elif defined(ANGLE_PLATFORM_POSIX)
+    // Create global pool key
+    if ((pthread_key_create(&index, NULL)) != 0)
+    {
+        index = TLS_INVALID_INDEX;
+    }
+#endif
+
+    assert(index != TLS_INVALID_INDEX && "CreateTLSIndex(): Unable to allocate Thread Local Storage");
+    return index;
+}
+
+bool DestroyTLSIndex(TLSIndex index)
+{
+    assert(index != TLS_INVALID_INDEX && "DestroyTLSIndex(): Invalid TLS Index");
+    if (index == TLS_INVALID_INDEX)
+    {
+        return false;
+    }
+
+#if defined(ANGLE_PLATFORM_WINRT)
+    if (!freeIndices)
+        freeIndices = new std::vector<TLSIndex>;
+    freeIndices->push_back(index);
+    return true;
+#elif ANGLE_PLATFORM_WINDOWS
+    return (TlsFree(index) == TRUE);
+#elif defined(ANGLE_PLATFORM_POSIX)
+    return (pthread_key_delete(index) == 0);
+#endif
+}
+
+bool SetTLSValue(TLSIndex index, void *value)
+{
+    assert(index != TLS_INVALID_INDEX && "SetTLSValue(): Invalid TLS Index");
+    if (index == TLS_INVALID_INDEX)
+    {
+        return false;
+    }
+
+#if defined(ANGLE_PLATFORM_WINRT)
+    tls->at(index) = value;
+    return true;
+#elif defined(ANGLE_PLATFORM_WINDOWS)
+    return (TlsSetValue(index, value) == TRUE);
+#elif defined(ANGLE_PLATFORM_POSIX)
+    return (pthread_setspecific(index, value) == 0);
+#endif
+}
+
+void *GetTLSValue(TLSIndex index)
+{
+#if !defined(ANGLE_PLATFORM_WINRT) // Valid on WinRT, as Alloc handles the index creation
+    assert(index != TLS_INVALID_INDEX && "GetTLSValue(): Invalid TLS Index");
+#endif
+    if (index == TLS_INVALID_INDEX)
+    {
+        return NULL;
+    }
+
+#if defined(ANGLE_PLATFORM_WINRT)
+    return tls->at(index);
+#elif defined(ANGLE_PLATFORM_WINDOWS)
+    return TlsGetValue(index);
+#elif defined(ANGLE_PLATFORM_POSIX)
+    return pthread_getspecific(index);
+#endif
+}