Ryujinx/Ryujinx.Common/SystemInfo/SystemInfo.cs

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2023-03-04 13:43:08 +00:00
using Ryujinx.Common.Logging;
using System;
using System.Runtime.InteropServices;
using System.Runtime.Intrinsics.X86;
using System.Text;
namespace Ryujinx.Common.SystemInfo
{
public class SystemInfo
{
public string OsDescription { get; protected set; }
public string CpuName { get; protected set; }
public ulong RamTotal { get; protected set; }
public ulong RamAvailable { get; protected set; }
protected static int LogicalCoreCount => Environment.ProcessorCount;
protected SystemInfo()
{
OsDescription = $"{RuntimeInformation.OSDescription} ({RuntimeInformation.OSArchitecture})";
CpuName = "Unknown";
}
private static string ToMiBString(ulong bytesValue) => (bytesValue == 0) ? "Unknown" : $"{bytesValue / 1024 / 1024} MiB";
public void Print()
{
Logger.Notice.Print(LogClass.Application, $"Operating System: {OsDescription}");
Logger.Notice.Print(LogClass.Application, $"CPU: {CpuName}");
Logger.Notice.Print(LogClass.Application, $"RAM: Total {ToMiBString(RamTotal)} ; Available {ToMiBString(RamAvailable)}");
}
public static SystemInfo Gather()
{
if (OperatingSystem.IsWindows())
{
return new WindowsSystemInfo();
}
else if (OperatingSystem.IsLinux())
{
return new LinuxSystemInfo();
}
else if (OperatingSystem.IsMacOS())
{
return new MacOSSystemInfo();
}
else
{
Logger.Error?.Print(LogClass.Application, "SystemInfo unsupported on this platform");
return new SystemInfo();
}
}
// x86 exposes a 48 byte ASCII "CPU brand" string via CPUID leaves 0x80000002-0x80000004.
internal static string GetCpuidCpuName()
{
if (!X86Base.IsSupported)
{
return null;
}
// Check if CPU supports the query
if ((uint)X86Base.CpuId(unchecked((int)0x80000000), 0).Eax < 0x80000004)
{
return null;
}
int[] regs = new int[12];
for (uint i = 0; i < 3; ++i)
{
(regs[4 * i], regs[4 * i + 1], regs[4 * i + 2], regs[4 * i + 3]) = X86Base.CpuId((int)(0x80000002 + i), 0);
}
string name = Encoding.ASCII.GetString(MemoryMarshal.Cast<int, byte>(regs)).Replace('\0', ' ').Trim();
return string.IsNullOrEmpty(name) ? null : name;
}
}
}