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[c-host] dont use DX12 feature levels on Windows8

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Fixes #218
This commit is contained in:
Geoffrey McRae
2020-01-06 20:52:27 +11:00
parent 9282ed19b2
commit 5db4c32035
4 changed files with 52 additions and 3 deletions
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22
common/src/platform/windows/windebug.c
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@@ -39,4 +39,26 @@ void DebugWinError(const char * file, const unsigned int line, const char * func
fprintf(stderr, "[E] %20s:%-4u | %-30s | %s: 0x%08x (%s)\n", file, line, function, desc, (int)status, buffer);
LocalFree(buffer);
}
/* credit for this function to: https://stackoverflow.com/questions/17399302/how-can-i-detect-windows-8-1-in-a-desktop-application */
inline static BOOL CompareWindowsVersion(DWORD dwMajorVersion, DWORD dwMinorVersion)
{
OSVERSIONINFOEX ver;
DWORDLONG dwlConditionMask = 0;
ZeroMemory(&ver, sizeof(OSVERSIONINFOEX));
ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
ver.dwMajorVersion = dwMajorVersion;
ver.dwMinorVersion = dwMinorVersion;
VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_EQUAL);
VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_EQUAL);
return VerifyVersionInfo(&ver, VER_MAJORVERSION | VER_MINORVERSION, dwlConditionMask);
}
bool IsWindows8()
{
return CompareWindowsVersion(6, 3) == TRUE;
}