1 files changed, 121 insertions, 0 deletions
diff --git a/archived/projt-launcher/launcher/SysInfo.cpp b/archived/projt-launcher/launcher/SysInfo.cpp
new file mode 100644
index 0000000000..1203e6d5bd
--- /dev/null
+++ b/archived/projt-launcher/launcher/SysInfo.cpp
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-FileCopyrightText: 2026 Project Tick
+// SPDX-FileContributor: Project Tick Team
+/*
+ *  ProjT Launcher - Minecraft Launcher
+ *  Copyright (C) 2026 Project Tick
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, write to the Free Software Foundation,
+ *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#include "SysInfo.h"
+
+#include <QString>
+#include <QSysInfo>
+
+#include "HardwareInfo.h"
+
+#ifdef Q_OS_MACOS
+#include <sys/sysctl.h>
+
+bool rosettaDetect()
+{
+	int ret		= 0;
+	size_t size = sizeof(ret);
+	if (sysctlbyname("sysctl.proc_translated", &ret, &size, nullptr, 0) == -1)
+	{
+		return false;
+	}
+	return ret == 1;
+}
+#endif
+
+namespace SysInfo
+{
+	QString currentSystem()
+	{
+#if defined(Q_OS_LINUX)
+		return "linux";
+#elif defined(Q_OS_MACOS)
+		return "osx";
+#elif defined(Q_OS_WINDOWS)
+		return "windows";
+#elif defined(Q_OS_FREEBSD)
+		return "freebsd";
+#elif defined(Q_OS_OPENBSD)
+		return "openbsd";
+#else
+		return "unknown";
+#endif
+	}
+
+	QString useQTForArch()
+	{
+#if defined(Q_OS_MACOS) && !defined(Q_PROCESSOR_ARM)
+		if (rosettaDetect())
+		{
+			return "arm64";
+		}
+		else
+		{
+			return "x86_64";
+		}
+#endif
+		return QSysInfo::currentCpuArchitecture();
+	}
+
+	int defaultMaxJvmMem()
+	{
+		// If totalRAM < 6GB, use (totalRAM / 1.5), else 4GB
+		if (const uint64_t totalRAM = HardwareInfo::totalRamMiB(); totalRAM < (4096 * 1.5))
+			return totalRAM / 1.5;
+		else
+			return 4096;
+	}
+
+	QString getSupportedJavaArchitecture()
+	{
+		auto sys  = currentSystem();
+		auto arch = useQTForArch();
+		if (sys == "windows")
+		{
+			if (arch == "x86_64")
+				return "windows-x64";
+			if (arch == "i386")
+				return "windows-x86";
+			// Unknown, maybe arm, appending arch
+			return "windows-" + arch;
+		}
+		if (sys == "osx")
+		{
+			if (arch == "arm64")
+				return "mac-os-arm64";
+			if (arch.contains("64"))
+				return "mac-os-x64";
+			if (arch.contains("86"))
+				return "mac-os-x86";
+			// Unknown, maybe something new, appending arch
+			return "mac-os-" + arch;
+		}
+		else if (sys == "linux")
+		{
+			if (arch == "x86_64")
+				return "linux-x64";
+			if (arch == "i386")
+				return "linux-x86";
+			// will work for arm32 arm(64)
+			return "linux-" + arch;
+		}
+		return {};
+	}
+} // namespace SysInfo