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Backport 6796f2337ee31b4b4f07eaa54d868b999c39233a from Qt

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The detection of Windows 10 is broken in Qt 4.8.6 and in Qt 5.2 through
5.4.1 (see QTBUG-43413). The commit above fixed it.

I backported only half of the solution, since the other half requires
the private class QSystemLibrary.

Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Thiago Macieira 2015-02-11 22:45:50 -08:00 • committed by Dirk Hohndel
parent 8a5f4455ac
commit 2843dc38c9
1 changed files with 39 additions and 21 deletions
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60
subsurfacesysinfo.cpp
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@ -131,6 +131,7 @@
#define ARCH_FULL ARCH_PROCESSOR "-" ARCH_ENDIANNESS "-" ARCH_POINTER ARCH_ABI
// --- end of archdetect.cpp ---
// copied from Qt 5.4.1's src/corelib/global/qglobal.cpp
#if defined(Q_OS_WIN) || defined(Q_OS_CYGWIN) || defined(Q_OS_WINCE) || defined(Q_OS_WINRT)
@ -139,33 +140,50 @@ QT_BEGIN_INCLUDE_NAMESPACE
QT_END_INCLUDE_NAMESPACE
#ifndef Q_OS_WINRT
# ifndef Q_OS_WINCE
// Fallback for determining Windows versions >= 8 by looping using the
// version check macros. Note that it will return build number=0 to avoid
// inefficient looping.
static inline void determineWinOsVersionFallbackPost8(OSVERSIONINFO *result)
{
result->dwBuildNumber = 0;
DWORDLONG conditionMask = 0;
VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_PLATFORMID, VER_EQUAL);
OSVERSIONINFOEX checkVersion = { sizeof(OSVERSIONINFOEX), result->dwMajorVersion, 0,
result->dwBuildNumber, result->dwPlatformId, {'\0'}, 0, 0, 0, 0, 0 };
for ( ; VerifyVersionInfo(&checkVersion, VER_MAJORVERSION | VER_PLATFORMID, conditionMask); ++checkVersion.dwMajorVersion)
result->dwMajorVersion = checkVersion.dwMajorVersion;
conditionMask = 0;
checkVersion.dwMajorVersion = result->dwMajorVersion;
checkVersion.dwMinorVersion = 0;
VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(conditionMask, VER_PLATFORMID, VER_EQUAL);
for ( ; VerifyVersionInfo(&checkVersion, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, conditionMask); ++checkVersion.dwMinorVersion)
result->dwMinorVersion = checkVersion.dwMinorVersion;
}
# endif // !Q_OS_WINCE
static inline OSVERSIONINFO winOsVersion()
{
OSVERSIONINFO result = { sizeof(OSVERSIONINFO), 0, 0, 0, 0, {'\0'}};
// GetVersionEx() has been deprecated in Windows 8.1 and will return
// only Windows 8 from that version on.
# if defined(_MSC_VER) && _MSC_VER >= 1800
# pragma warning( push )
# pragma warning( disable : 4996 )
# endif
# if defined(_MSC_VER) && _MSC_VER >= 1800
# pragma warning( push )
# pragma warning( disable : 4996 )
# endif
GetVersionEx(&result);
# if defined(_MSC_VER) && _MSC_VER >= 1800
# pragma warning( pop )
# endif
# ifndef Q_OS_WINCE
if (result.dwMajorVersion == 6 && result.dwMinorVersion == 2) {
// This could be Windows 8.1 or higher. Note that as of Windows 9,
// the major version needs to be checked as well.
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_PLATFORMID, VER_EQUAL);
OSVERSIONINFOEX checkVersion = { sizeof(OSVERSIONINFOEX), result.dwMajorVersion, result.dwMinorVersion,
result.dwBuildNumber, result.dwPlatformId, {'\0'}, 0, 0, 0, 0, 0 };
for ( ; VerifyVersionInfo(&checkVersion, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, conditionMask); ++checkVersion.dwMinorVersion)
result.dwMinorVersion = checkVersion.dwMinorVersion;
}
# endif // !Q_OS_WINCE
# if defined(_MSC_VER) && _MSC_VER >= 1800
# pragma warning( pop )
# endif
# ifndef Q_OS_WINCE
if (result.dwMajorVersion == 6 && result.dwMinorVersion == 2) {
determineWinOsVersionFallbackPost8(&result);
}
# endif // !Q_OS_WINCE
return result;
}
#endif // !Q_OS_WINRT