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using Ryujinx.Common.GraphicsDriver.NVAPI;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Ryujinx.Common.GraphicsDriver
{
static partial class NVThreadedOptimization
{
private const string ProfileName = "Ryujinx Nvidia Profile";
private const uint NvAPI_Initialize_ID = 0x0150E828;
private const uint NvAPI_DRS_CreateSession_ID = 0x0694D52E;
private const uint NvAPI_DRS_LoadSettings_ID = 0x375DBD6B;
private const uint NvAPI_DRS_FindProfileByName_ID = 0x7E4A9A0B;
private const uint NvAPI_DRS_CreateProfile_ID = 0x0CC176068;
private const uint NvAPI_DRS_CreateApplication_ID = 0x4347A9DE;
private const uint NvAPI_DRS_SetSetting_ID = 0x577DD202;
private const uint NvAPI_DRS_SaveSettings_ID = 0xFCBC7E14;
private const uint NvAPI_DRS_DestroySession_ID = 0x0DAD9CFF8;
[LibraryImport("nvapi64")]
private static partial IntPtr nvapi_QueryInterface(uint id);
private delegate int NvAPI_InitializeDelegate();
private static NvAPI_InitializeDelegate NvAPI_Initialize;
private delegate int NvAPI_DRS_CreateSessionDelegate(out IntPtr handle);
private static NvAPI_DRS_CreateSessionDelegate NvAPI_DRS_CreateSession;
private delegate int NvAPI_DRS_LoadSettingsDelegate(IntPtr handle);
private static NvAPI_DRS_LoadSettingsDelegate NvAPI_DRS_LoadSettings;
private delegate int NvAPI_DRS_FindProfileByNameDelegate(IntPtr handle, NvapiUnicodeString profileName, out IntPtr profileHandle);
private static NvAPI_DRS_FindProfileByNameDelegate NvAPI_DRS_FindProfileByName;
private delegate int NvAPI_DRS_CreateProfileDelegate(IntPtr handle, ref NvdrsProfile profileInfo, out IntPtr profileHandle);
private static NvAPI_DRS_CreateProfileDelegate NvAPI_DRS_CreateProfile;
private delegate int NvAPI_DRS_CreateApplicationDelegate(IntPtr handle, IntPtr profileHandle, ref NvdrsApplicationV4 app);
private static NvAPI_DRS_CreateApplicationDelegate NvAPI_DRS_CreateApplication;
private delegate int NvAPI_DRS_SetSettingDelegate(IntPtr handle, IntPtr profileHandle, ref NvdrsSetting setting);
private static NvAPI_DRS_SetSettingDelegate NvAPI_DRS_SetSetting;
private delegate int NvAPI_DRS_SaveSettingsDelegate(IntPtr handle);
private static NvAPI_DRS_SaveSettingsDelegate NvAPI_DRS_SaveSettings;
private delegate int NvAPI_DRS_DestroySessionDelegate(IntPtr handle);
private static NvAPI_DRS_DestroySessionDelegate NvAPI_DRS_DestroySession;
private static bool _initialized;
private static void Check(int status)
{
if (status != 0)
{
throw new Exception($"NVAPI Error: {status}");
}
}
private static void Initialize()
{
if (!_initialized)
{
NvAPI_Initialize = NvAPI_Delegate<NvAPI_InitializeDelegate>(NvAPI_Initialize_ID);
Check(NvAPI_Initialize());
NvAPI_DRS_CreateSession = NvAPI_Delegate<NvAPI_DRS_CreateSessionDelegate>(NvAPI_DRS_CreateSession_ID);
NvAPI_DRS_LoadSettings = NvAPI_Delegate<NvAPI_DRS_LoadSettingsDelegate>(NvAPI_DRS_LoadSettings_ID);
NvAPI_DRS_FindProfileByName = NvAPI_Delegate<NvAPI_DRS_FindProfileByNameDelegate>(NvAPI_DRS_FindProfileByName_ID);
NvAPI_DRS_CreateProfile = NvAPI_Delegate<NvAPI_DRS_CreateProfileDelegate>(NvAPI_DRS_CreateProfile_ID);
NvAPI_DRS_CreateApplication = NvAPI_Delegate<NvAPI_DRS_CreateApplicationDelegate>(NvAPI_DRS_CreateApplication_ID);
NvAPI_DRS_SetSetting = NvAPI_Delegate<NvAPI_DRS_SetSettingDelegate>(NvAPI_DRS_SetSetting_ID);
NvAPI_DRS_SaveSettings = NvAPI_Delegate<NvAPI_DRS_SaveSettingsDelegate>(NvAPI_DRS_SaveSettings_ID);
NvAPI_DRS_DestroySession = NvAPI_Delegate<NvAPI_DRS_DestroySessionDelegate>(NvAPI_DRS_DestroySession_ID);
_initialized = true;
}
}
private static uint MakeVersion<T>(uint version) where T : unmanaged
{
return (uint)Unsafe.SizeOf<T>() | version << 16;
}
public static void SetThreadedOptimization(bool enabled)
{
Initialize();
uint targetValue = (uint)(enabled ? Nvapi.OglThreadControlEnable : Nvapi.OglThreadControlDisable);
Check(NvAPI_Initialize());
Check(NvAPI_DRS_CreateSession(out IntPtr handle));
Check(NvAPI_DRS_LoadSettings(handle));
// Check if the profile already exists.
int status = NvAPI_DRS_FindProfileByName(handle, new NvapiUnicodeString(ProfileName), out nint profileHandle);
if (status != 0)
{
NvdrsProfile profile = new()
{
Version = MakeVersion<NvdrsProfile>(1),
IsPredefined = 0,
GpuSupport = uint.MaxValue,
};
profile.ProfileName.Set(ProfileName);
Check(NvAPI_DRS_CreateProfile(handle, ref profile, out profileHandle));
NvdrsApplicationV4 application = new()
{
Version = MakeVersion<NvdrsApplicationV4>(4),
IsPredefined = 0,
Flags = 3, // IsMetro, IsCommandLine
};
application.AppName.Set("Ryujinx.exe");
application.UserFriendlyName.Set("Ryujinx");
application.Launcher.Set("");
application.FileInFolder.Set("");
Check(NvAPI_DRS_CreateApplication(handle, profileHandle, ref application));
}
NvdrsSetting setting = new()
{
Version = MakeVersion<NvdrsSetting>(1),
SettingId = Nvapi.OglThreadControlId,
SettingType = NvdrsSettingType.NvdrsDwordType,
SettingLocation = NvdrsSettingLocation.NvdrsCurrentProfileLocation,
IsCurrentPredefined = 0,
IsPredefinedValid = 0,
CurrentValue = targetValue,
PredefinedValue = targetValue,
};
Check(NvAPI_DRS_SetSetting(handle, profileHandle, ref setting));
Check(NvAPI_DRS_SaveSettings(handle));
NvAPI_DRS_DestroySession(handle);
}
private static T NvAPI_Delegate<T>(uint id) where T : class
{
IntPtr ptr = nvapi_QueryInterface(id);
if (ptr != IntPtr.Zero)
{
return Marshal.GetDelegateForFunctionPointer<T>(ptr);
}
return null;
}
}
}
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