1 files changed, 65 insertions, 0 deletions
diff --git a/gfx/angle/src/third_party/systeminfo/SystemInfo.cpp b/gfx/angle/src/third_party/systeminfo/SystemInfo.cpp
new file mode 100755
index 000000000..97dfcaac5
--- /dev/null
+++ b/gfx/angle/src/third_party/systeminfo/SystemInfo.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2009 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 <windows.h>
+#include "common/platform.h"
+
+#if _WIN32_WINNT_WINBLUE
+#include <versionhelpers.h>
+#endif
+
+namespace rx {
+
+#ifndef _WIN32_WINNT_WINBLUE
+static bool IsWindowsVistaOrGreater()
+{
+    OSVERSIONINFOEXW osvi = { };
+    osvi.dwOSVersionInfoSize = sizeof(osvi);
+    osvi.dwMajorVersion = HIBYTE(_WIN32_WINNT_VISTA);
+    osvi.dwMinorVersion = LOBYTE(_WIN32_WINNT_VISTA);
+    DWORDLONG condition = 0;
+    VER_SET_CONDITION(condition, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    VER_SET_CONDITION(condition, VER_MINORVERSION, VER_GREATER_EQUAL);
+    return !!::VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION, condition);
+}
+#endif
+
+bool isWindowsVistaOrGreater()
+{
+    static bool initialized = false;
+    static bool cachedIsWindowsVistaOrGreater;
+
+    if (!initialized) {
+        initialized = true;
+#if defined(ANGLE_ENABLE_WINDOWS_STORE)
+        cachedIsWindowsVistaOrGreater = true;
+#else
+        cachedIsWindowsVistaOrGreater = IsWindowsVistaOrGreater();
+#endif
+    }
+    return cachedIsWindowsVistaOrGreater;
+}
+
+} // namespace rx