diff options
Diffstat (limited to 'src/3rdparty/angle/src/third_party/systeminfo/SystemInfo.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/third_party/systeminfo/SystemInfo.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/third_party/systeminfo/SystemInfo.cpp b/src/3rdparty/angle/src/third_party/systeminfo/SystemInfo.cpp new file mode 100644 index 0000000000..19a9644d70 --- /dev/null +++ b/src/3rdparty/angle/src/third_party/systeminfo/SystemInfo.cpp @@ -0,0 +1,60 @@ +/* + * 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> + +#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; + cachedIsWindowsVistaOrGreater = IsWindowsVistaOrGreater(); + } + return cachedIsWindowsVistaOrGreater; +} + +} // namespace rx |