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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_WindowsVersion_h
#define mozilla_WindowsVersion_h
#include "mozilla/Attributes.h"
#include <stdint.h>
#include <windows.h>
namespace mozilla {
inline bool
IsWindowsVersionOrLater(uint32_t aVersion)
{
static uint32_t minVersion = 0;
static uint32_t maxVersion = UINT32_MAX;
if (minVersion >= aVersion) {
return true;
}
if (aVersion >= maxVersion) {
return false;
}
OSVERSIONINFOEX info;
ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
info.dwMajorVersion = aVersion >> 24;
info.dwMinorVersion = (aVersion >> 16) & 0xFF;
info.wServicePackMajor = (aVersion >> 8) & 0xFF;
info.wServicePackMinor = aVersion & 0xFF;
DWORDLONG conditionMask = 0;
VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL);
if (VerifyVersionInfo(&info,
VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
conditionMask)) {
minVersion = aVersion;
return true;
}
maxVersion = aVersion;
return false;
}
inline bool
IsWindowsBuildOrLater(uint32_t aBuild)
{
static uint32_t minBuild = 0;
static uint32_t maxBuild = UINT32_MAX;
if (minBuild >= aBuild) {
return true;
}
if (aBuild >= maxBuild) {
return false;
}
OSVERSIONINFOEX info;
ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
info.dwBuildNumber = aBuild;
DWORDLONG conditionMask = 0;
VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
if (VerifyVersionInfo(&info, VER_BUILDNUMBER, conditionMask)) {
minBuild = aBuild;
return true;
}
maxBuild = aBuild;
return false;
}
#if defined(_M_X64) || defined(_M_AMD64)
// We support only Win7 or later on Win64.
MOZ_ALWAYS_INLINE bool
IsXPSP3OrLater()
{
return true;
}
MOZ_ALWAYS_INLINE bool
IsWin2003OrLater()
{
return true;
}
MOZ_ALWAYS_INLINE bool
IsWin2003SP2OrLater()
{
return true;
}
MOZ_ALWAYS_INLINE bool
IsVistaOrLater()
{
return true;
}
MOZ_ALWAYS_INLINE bool
IsVistaSP1OrLater()
{
return true;
}
MOZ_ALWAYS_INLINE bool
IsWin7OrLater()
{
return true;
}
#else
MOZ_ALWAYS_INLINE bool
IsXPSP3OrLater()
{
return IsWindowsVersionOrLater(0x05010300ul);
}
MOZ_ALWAYS_INLINE bool
IsWin2003OrLater()
{
return IsWindowsVersionOrLater(0x05020000ul);
}
MOZ_ALWAYS_INLINE bool
IsWin2003SP2OrLater()
{
return IsWindowsVersionOrLater(0x05020200ul);
}
MOZ_ALWAYS_INLINE bool
IsVistaOrLater()
{
return IsWindowsVersionOrLater(0x06000000ul);
}
MOZ_ALWAYS_INLINE bool
IsVistaSP1OrLater()
{
return IsWindowsVersionOrLater(0x06000100ul);
}
MOZ_ALWAYS_INLINE bool
IsWin7OrLater()
{
return IsWindowsVersionOrLater(0x06010000ul);
}
#endif
MOZ_ALWAYS_INLINE bool
IsWin7SP1OrLater()
{
return IsWindowsVersionOrLater(0x06010100ul);
}
MOZ_ALWAYS_INLINE bool
IsWin8OrLater()
{
return IsWindowsVersionOrLater(0x06020000ul);
}
MOZ_ALWAYS_INLINE bool
IsWin8Point1OrLater()
{
return IsWindowsVersionOrLater(0x06030000ul);
}
MOZ_ALWAYS_INLINE bool
IsWin10OrLater()
{
return IsWindowsVersionOrLater(0x0a000000ul);
}
MOZ_ALWAYS_INLINE bool
IsNotWin7PreRTM()
{
return IsWin7SP1OrLater() || !IsWin7OrLater() ||
IsWindowsBuildOrLater(7600);
}
MOZ_ALWAYS_INLINE bool
IsWin7AndPre2000Compatible() {
/*
* See Bug 1279171.
* We'd like to avoid using WMF on specific OS version when compatibility
* mode is in effect. The purpose of this function is to check if FF runs on
* Win7 OS with application compatibility mode being set to 95/98/ME.
* Those compatibility mode options (95/98/ME) can only display and
* be selected for 32-bit application.
* If the compatibility mode is in effect, the GetVersionEx function will
* report the OS as it identifies itself, which may not be the OS that is
* installed.
* Note : 1) We only target for Win7 build number greater than 7600.
* 2) GetVersionEx may be altered or unavailable for release after
* Win8.1. Set pragma to avoid build warning as error.
*/
bool isWin7 = IsNotWin7PreRTM() && !IsWin8OrLater();
if (!isWin7) {
return false;
}
OSVERSIONINFOEX info;
ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
#pragma warning(push)
#pragma warning(disable:4996)
bool success = GetVersionEx((LPOSVERSIONINFO) &info);
#pragma warning(pop)
if (!success) {
return false;
}
return info.dwMajorVersion < 5;
}
} // namespace mozilla
#endif /* mozilla_WindowsVersion_h */
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