Hide the D3D11 backend if Windows version is older than Win8

2026-09-08 21:53:39 +02:00 · 2017-02-14 10:33:42 +01:00
parent b51bcd2247
commit b5034c4e00
7 changed files with 116 additions and 82 deletions
@@ -0,0 +1,87 @@
+
+#ifdef _MSC_VER
+
+#include <cstdint>
+#include "OSVersion.h"
+#include "Common/CommonWindows.h"
+
+bool DoesVersionMatchWindows(uint32_t major, uint32_t minor, uint32_t spMajor, uint32_t spMinor) {
+	uint64_t conditionMask = 0;
+	OSVERSIONINFOEX osvi;
+	ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
+
+	osvi.dwOSVersionInfoSize = sizeof(osvi);
+	osvi.dwMajorVersion = major;
+	osvi.dwMinorVersion = minor;
+	osvi.wServicePackMajor = spMajor;
+	osvi.wServicePackMinor = spMinor;
+	uint32_t op = VER_EQUAL;
+
+	VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, op);
+	VER_SET_CONDITION(conditionMask, VER_MINORVERSION, op);
+	VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, op);
+	VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, op);
+
+	const uint32_t typeMask = VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR;
+
+	return VerifyVersionInfo(&osvi, typeMask, conditionMask) != FALSE;
+}
+
+std::string GetWindowsVersion() {
+	const bool IsWindowsXPSP2 = DoesVersionMatchWindows(5, 1, 2, 0);
+	const bool IsWindowsXPSP3 = DoesVersionMatchWindows(5, 1, 3, 0);
+	const bool IsWindowsVista = DoesVersionMatchWindows(6, 0);
+	const bool IsWindowsVistaSP1 = DoesVersionMatchWindows(6, 0, 1, 0);
+	const bool IsWindowsVistaSP2 = DoesVersionMatchWindows(6, 0, 2, 0);
+	const bool IsWindows7 = DoesVersionMatchWindows(6, 1);
+	const bool IsWindows7SP1 = DoesVersionMatchWindows(6, 1, 1, 0);
+	const bool IsWindows8 = DoesVersionMatchWindows(6, 2);
+	const bool IsWindows8_1 = DoesVersionMatchWindows(6, 3);
+
+	if (IsWindowsXPSP2)
+		return "Microsoft Windows XP, Service Pack 2";
+
+	if (IsWindowsXPSP3)
+		return "Microsoft Windows XP, Service Pack 3";
+
+	if (IsWindowsVista)
+		return "Microsoft Windows Vista";
+
+	if (IsWindowsVistaSP1)
+		return "Microsoft Windows Vista, Service Pack 1";
+
+	if (IsWindowsVistaSP2)
+		return "Microsoft Windows Vista, Service Pack 2";
+
+	if (IsWindows7)
+		return "Microsoft Windows 7";
+
+	if (IsWindows7SP1)
+		return "Microsoft Windows 7, Service Pack 1";
+
+	if (IsWindows8)
+		return "Microsoft Windows 8 or greater"; // "Applications not manifested for Windows 10 will return the Windows 8 OS version value (6.2)."
+
+	if (IsWindows8_1)
+		return "Microsoft Windows 8.1";
+
+	return "Unsupported version of Microsoft Windows.";
+}
+
+std::string GetWindowsSystemArchitecture() {
+	SYSTEM_INFO sysinfo;
+	ZeroMemory(&sysinfo, sizeof(SYSTEM_INFO));
+	GetNativeSystemInfo(&sysinfo);
+
+	if (sysinfo.wProcessorArchitecture & PROCESSOR_ARCHITECTURE_AMD64)
+		return "(x64)";
+	// Need to check for equality here, since ANDing with 0 is always 0.
+	else if (sysinfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_INTEL)
+		return "(x86)";
+	else if (sysinfo.wProcessorArchitecture & PROCESSOR_ARCHITECTURE_ARM)
+		return "(ARM)";
+	else
+		return "(Unknown)";
+}
+
+#endif