| /* |
| * 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 |
