Ryujinx/Ryujinx.Core/OsHle/Services/Am/IApplicationFunctions.cs

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using Ryujinx.Core.Logging;
using Ryujinx.Core.OsHle.Ipc;
using System.Collections.Generic;
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using System.IO;
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namespace Ryujinx.Core.OsHle.Services.Am
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{
class IApplicationFunctions : IpcService
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{
private Dictionary<int, ServiceProcessRequest> m_Commands;
public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
public IApplicationFunctions()
{
m_Commands = new Dictionary<int, ServiceProcessRequest>()
{
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{ 1, PopLaunchParameter },
{ 20, EnsureSaveData },
{ 21, GetDesiredLanguage },
{ 22, SetTerminateResult },
{ 23, GetDisplayVersion },
{ 40, NotifyRunning }
};
}
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private const uint LaunchParamsMagic = 0xc79497ca;
public long PopLaunchParameter(ServiceCtx Context)
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{
//Only the first 0x18 bytes of the Data seems to be actually used.
MakeObject(Context, new IStorage(MakeLaunchParams()));
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return 0;
}
public long EnsureSaveData(ServiceCtx Context)
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{
long UIdLow = Context.RequestData.ReadInt64();
long UIdHigh = Context.RequestData.ReadInt64();
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Context.Ns.Log.PrintStub(LogClass.ServiceAm, "Stubbed.");
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Context.ResponseData.Write(0L);
return 0;
}
public long GetDesiredLanguage(ServiceCtx Context)
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{
Context.ResponseData.Write(Context.Ns.Os.SystemState.DesiredLanguageCode);
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return 0;
}
public long SetTerminateResult(ServiceCtx Context)
{
int ErrorCode = Context.RequestData.ReadInt32();
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string Result = GetFormattedErrorCode(ErrorCode);
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Context.Ns.Log.PrintInfo(LogClass.ServiceAm, $"Result = 0x{ErrorCode:x8} ({Result}).");
return 0;
}
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private string GetFormattedErrorCode(int ErrorCode)
{
int Module = (ErrorCode >> 0) & 0x1ff;
int Description = (ErrorCode >> 9) & 0x1fff;
return $"{(2000 + Module):d4}-{Description:d4}";
}
public long GetDisplayVersion(ServiceCtx Context)
{
//FIXME: Need to check correct version on a switch.
Context.ResponseData.Write(1L);
Context.ResponseData.Write(0L);
return 0;
}
public long NotifyRunning(ServiceCtx Context)
{
Context.ResponseData.Write(1);
return 0;
}
private byte[] MakeLaunchParams()
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{
//Size needs to be at least 0x88 bytes otherwise application errors.
using (MemoryStream MS = new MemoryStream())
{
BinaryWriter Writer = new BinaryWriter(MS);
MS.SetLength(0x88);
Writer.Write(LaunchParamsMagic);
Writer.Write(1); //IsAccountSelected? Only lower 8 bits actually used.
Writer.Write(1L); //User Id Low (note: User Id needs to be != 0)
Writer.Write(0L); //User Id High
return MS.ToArray();
}
}
}
}