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msfs-popout-panel-manager/Orchestration/DynamicLodOrchestrator.cs
2024-09-17 10:42:07 -04:00

314 lines
11 KiB
C#

using MSFSPopoutPanelManager.DomainModel.DynamicLod;
using MSFSPopoutPanelManager.DomainModel.Setting;
using MSFSPopoutPanelManager.Shared;
using MSFSPopoutPanelManager.WindowsAgent;
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace MSFSPopoutPanelManager.Orchestration
{
public class DynamicLodOrchestrator : BaseOrchestrator
{
private const string SIMMODULE_NAME = "WwiseLibPCx64P.dll";
private const int PROCESS_VM_OPERATION = 0x0008;
private const int PROCESS_VM_READ = 0x0010;
private const int PROCESS_VM_WRITE = 0x0020;
private const long OFFSET_MODULE_BASE =0x004B2368;
private const long OFFSET_POINTER_MAIN = 0x3D0;
private const long OFFSET_POINTER_TLOD = 0xC;
private const long OFFSET_POINTER_OLOD = 0xC;
private const long OFFSET_POINTER_CLOUD_QUALITY = 0x44;
private const long OFFSET_POINTER_FG_MODE = 0x4A;
private const long OFFSET_POINTER_ANSIO_FILTER = -0x18;
private const long OFFSET_POINTER_WATER_WAVES = 0x3C;
private bool _isActive;
private WindowProcess _process;
private IntPtr _processHandle;
private long _processModuleAddress;
private long _addressTlod;
private long _addressOlod;
private long _addressCloudQ;
private long _addressFgMode;
private DynamicLodSetting DynamicLodSetting => AppSettingData.ApplicationSetting.DynamicLodSetting;
private DynamicLodSimData DynamicLodSimData => FlightSimData.DynamicLodSimData;
private DateTime _lastLodUpdateTime = DateTime.Now;
private bool _isDecreasedCloudQualityActive;
public DynamicLodOrchestrator(SharedStorage sharedStorage) : base(sharedStorage) {}
public void Attach()
{
if (AppSettingData == null || _isActive)
return;
_process = WindowProcessManager.SimulatorProcess;
_processModuleAddress = GetSimModuleAddress();
if (_process == null || _processModuleAddress == IntPtr.Zero)
return;
_processHandle = PInvoke.OpenProcess(PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE, false, _process.ProcessId);
if (_processHandle == IntPtr.Zero)
return;
_addressTlod = ReadMemory<long>(_processModuleAddress + OFFSET_MODULE_BASE) + OFFSET_POINTER_MAIN;
if (_addressTlod > 0)
{
_addressTlod = ReadMemory<long>(_addressTlod) + OFFSET_POINTER_TLOD;
_addressOlod = _addressTlod + OFFSET_POINTER_OLOD;
_addressCloudQ = _addressTlod + OFFSET_POINTER_CLOUD_QUALITY;
_addressFgMode = _addressTlod - OFFSET_POINTER_FG_MODE;
if (!MemoryBoundaryTest())
{
FileLogger.WriteLog("Unable to validate memory space for Dynamic LOD", StatusMessageType.Error);
return;
}
}
_isActive = true;
_lastLodUpdateTime = DateTime.Now;
_isDecreasedCloudQualityActive = false;
}
public void Detach()
{
if (DynamicLodSetting == null)
return;
if (DynamicLodSetting.ResetEnabled)
{
WriteMemory(_addressTlod, DynamicLodSetting.ResetTlod / 100.0f);
WriteMemory(_addressOlod, DynamicLodSetting.ResetOlod / 100.0f);
}
_isActive = false;
Debug.WriteLine($"Reset to custom LOD: TLOD: {DynamicLodSetting.ResetTlod}, OLOD: {DynamicLodSetting.ResetOlod}");
}
public int ReadTlod()
{
return Convert.ToInt32(ReadMemory<float>(_addressTlod) * 100.0f);
}
public int ReadOlod()
{
return Convert.ToInt32(ReadMemory<float>(_addressOlod) * 100.0f);
}
public string ReadCloudQuality()
{
return ReadCloudQualitySimValue() switch
{
0 => "Low",
1 => "Medium",
2 => "High",
3 => "Ultra",
_ => "N/A"
};
}
public int ReadCloudQualitySimValue()
{
return Convert.ToInt32(ReadMemory<int>(_addressCloudQ));
}
public bool ReadIsFg()
{
return ReadMemory<byte>(_addressFgMode) == 1;
}
public void UpdateLod()
{
if (!FlightSimData.IsFlightStarted || !FlightSimData.IsInCockpit)
return;
if (DateTime.Now - _lastLodUpdateTime <= TimeSpan.FromSeconds(3))
return;
var deltaFps = DynamicLodSimData.Fps - DynamicLodSetting.TargetedFps;
if (Math.Abs(deltaFps) < DynamicLodSetting.TargetedFps * DynamicLodSetting.FpsTolerance / 100.0) // within FPS tolerance
return;
_lastLodUpdateTime = DateTime.Now;
SetTlod(deltaFps);
SetOlod();
}
private long GetSimModuleAddress()
{
if (_process == null)
return -1;
foreach (ProcessModule processModule in _process.Modules)
{
if (processModule.ModuleName == SIMMODULE_NAME)
return processModule.BaseAddress;
}
return -1;
}
private void WriteMemory(long address, object value)
{
try
{
var buffer = StructureToByteArray(value);
PInvoke.NtWriteVirtualMemory(checked((int)_processHandle), address, buffer, buffer.Length, out _);
}
catch
{
// ignored
}
}
private T ReadMemory<T>(long address) where T : struct
{
try
{
var byteSize = Marshal.SizeOf(typeof(T));
var buffer = new byte[byteSize];
PInvoke.NtReadVirtualMemory(checked((int)_processHandle), address, buffer, buffer.Length, out _);
return ByteArrayToStructure<T>(buffer);
}
catch
{
// ignored
}
return default(T);
}
private byte[] StructureToByteArray(object obj)
{
var length = Marshal.SizeOf(obj);
var array = new byte[length];
var pointer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(obj, pointer, true);
Marshal.Copy(pointer, array, 0, length);
Marshal.FreeHGlobal(pointer);
return array;
}
private T ByteArrayToStructure<T>(byte[] bytes) where T : struct
{
var handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
try
{
var result = Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(T));
if(result != null)
return (T)result;
return default(T);
}
finally
{
handle.Free();
}
}
private bool MemoryBoundaryTest()
{
// Boundary check a few known setting memory addresses to see if any fail which likely indicates MSFS memory map has changed
if (ReadTlod() < 10 || ReadTlod() > 1000 || ReadTlod() < 10 || ReadTlod() > 1000
|| ReadOlod() < 10 || ReadOlod() > 1000 || ReadOlod() < 10 || ReadOlod() > 1000
|| ReadCloudQuality() == "N/A" || ReadCloudQuality() == "N/A"
|| ReadMemory<int>(_addressTlod + OFFSET_POINTER_ANSIO_FILTER) < 1 || ReadMemory<int>(_addressTlod + OFFSET_POINTER_ANSIO_FILTER) > 16
|| !(ReadMemory<int>(_addressTlod + OFFSET_POINTER_WATER_WAVES) == 128 || ReadMemory<int>(_addressTlod + OFFSET_POINTER_WATER_WAVES) == 256 || ReadMemory<int>(_addressTlod + OFFSET_POINTER_WATER_WAVES) == 512))
{
return false;
}
return true;
}
private void SetTlod(int deltaFps)
{
var tlodStep = Math.Max(10, Math.Abs(deltaFps / 2));
var newTlod = DynamicLodSimData.Tlod + Math.Sign(deltaFps) * tlodStep;
if (DynamicLodSetting.TlodMinOnGround && DynamicLodSimData.AltAboveGround <= DynamicLodSetting.AltTlodBase)
{
newTlod = DynamicLodSetting.TlodMin;
}
else if (newTlod < DynamicLodSetting.TlodMin)
{
newTlod = DynamicLodSetting.TlodMin;
}
else if (newTlod > DynamicLodSetting.TlodMax)
{
newTlod = DynamicLodSetting.TlodMax;
}
if (ReadTlod() == newTlod)
return;
// Adjust cloud quality if applicable
if (DynamicLodSetting.DecreaseCloudQuality && (!DynamicLodSetting.TlodMinOnGround && !(DynamicLodSimData.AltAboveGround <= DynamicLodSetting.AltTlodBase)))
{
switch (deltaFps)
{
case < 0 when newTlod < DynamicLodSetting.CloudRecoveryTlod && !_isDecreasedCloudQualityActive:
_isDecreasedCloudQualityActive = true;
WriteMemory(_addressCloudQ, ReadCloudQualitySimValue() - 1);
_lastLodUpdateTime =
_lastLodUpdateTime.AddSeconds(2); // Add extra delay for cloud setting to take effect
Debug.WriteLine("New Cloud Quality written - 2.");
return;
case > 0 when newTlod >= DynamicLodSetting.CloudRecoveryTlod && _isDecreasedCloudQualityActive:
_isDecreasedCloudQualityActive = false;
WriteMemory(_addressCloudQ, ReadCloudQualitySimValue() + 1);
_lastLodUpdateTime = _lastLodUpdateTime.AddSeconds(2);
Debug.WriteLine("New Cloud Quality written - 3.");
return;
}
}
Debug.WriteLine($"New TLOD written - {newTlod}.");
WriteMemory(_addressTlod, newTlod / 100.0f);
}
private void SetOlod()
{
int newOlod;
if (DynamicLodSimData.AltAboveGround < DynamicLodSetting.AltOlodBase)
{
newOlod = DynamicLodSetting.OlodBase;
}
else if (DynamicLodSimData.AltAboveGround > DynamicLodSetting.AltOlodTop)
{
newOlod = DynamicLodSetting.OlodTop;
}
else
{
newOlod = Convert.ToInt32(DynamicLodSetting.OlodBase - (DynamicLodSetting.OlodBase - DynamicLodSetting.OlodTop) * (DynamicLodSimData.AltAboveGround - DynamicLodSetting.AltOlodBase) / (DynamicLodSetting.AltOlodTop - DynamicLodSetting.AltOlodBase));
}
if (ReadOlod() == newOlod)
return;
Debug.WriteLine($"New OLOD written - {newOlod}.");
WriteMemory(_addressOlod, newOlod / 100.0f);
}
}
}