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Don't try to load d3dcompiler_46.dll on Windows XP

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This commit is contained in:
Sam Lantinga
2014-04-23 13:47:42 -07:00
parent af395e970e
commit acbc321c2a
3 changed files with 33 additions and 2 deletions
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25
src/core/windows/SDL_windows.c
View File

@@ -88,6 +88,31 @@ WIN_CoUninitialize(void)
#endif
}
static BOOL
IsWindowsVersionOrGreater(WORD wMajorVersion, WORD wMinorVersion, WORD wServicePackMajor)
{
OSVERSIONINFOEXW osvi;
DWORDLONG const dwlConditionMask = VerSetConditionMask(
VerSetConditionMask(
VerSetConditionMask(
0, VER_MAJORVERSION, VER_GREATER_EQUAL ),
VER_MINORVERSION, VER_GREATER_EQUAL ),
VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL );
SDL_zero(osvi);
osvi.dwOSVersionInfoSize = sizeof(osvi);
osvi.dwMajorVersion = wMajorVersion;
osvi.dwMinorVersion = wMinorVersion;
osvi.wServicePackMajor = wServicePackMajor;
return VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE;
}
BOOL WIN_IsWindowsVistaOrGreater()
{
return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 0);
}
#endif /* __WIN32__ */
/* vi: set ts=4 sw=4 expandtab: */

3
src/core/windows/SDL_windows.h
View File

@@ -56,6 +56,9 @@ extern int WIN_SetError(const char *prefix);
extern HRESULT WIN_CoInitialize(void);
extern void WIN_CoUninitialize(void);
/* Returns SDL_TRUE if we're running on Windows Vista and newer */
extern BOOL WIN_IsWindowsVistaOrGreater();
#endif /* _INCLUDED_WINDOWS_H */
/* vi: set ts=4 sw=4 expandtab: */