Ryujinx/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvDeviceFile.cs

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using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices
{
abstract class NvDeviceFile
{
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public readonly ServiceCtx Context;
public readonly KProcess Owner;
public NvDeviceFile(ServiceCtx context)
{
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Context = context;
Owner = context.Process;
}
public virtual NvInternalResult QueryEvent(out int eventHandle, uint eventId)
{
eventHandle = 0;
return NvInternalResult.NotImplemented;
}
public virtual NvInternalResult MapSharedMemory(KSharedMemory sharedMemory, uint argument)
{
return NvInternalResult.NotImplemented;
}
public virtual NvInternalResult Ioctl(NvIoctl command, Span<byte> arguments)
{
return NvInternalResult.NotImplemented;
}
public virtual NvInternalResult Ioctl2(NvIoctl command, Span<byte> arguments, Span<byte> inlineInBuffer)
{
return NvInternalResult.NotImplemented;
}
public virtual NvInternalResult Ioctl3(NvIoctl command, Span<byte> arguments, Span<byte> inlineOutBuffer)
{
return NvInternalResult.NotImplemented;
}
protected delegate NvInternalResult IoctlProcessor<T>(ref T arguments);
protected delegate NvInternalResult IoctlProcessorSpan<T>(Span<T> arguments);
protected delegate NvInternalResult IoctlProcessorInline<T, T1>(ref T arguments, ref T1 inlineData);
protected delegate NvInternalResult IoctlProcessorInlineSpan<T, T1>(ref T arguments, Span<T1> inlineData);
protected static NvInternalResult CallIoctlMethod<T>(IoctlProcessor<T> callback, Span<byte> arguments) where T : struct
{
Debug.Assert(arguments.Length == Unsafe.SizeOf<T>());
return callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0]);
}
protected static NvInternalResult CallIoctlMethod<T, T1>(IoctlProcessorInline<T, T1> callback, Span<byte> arguments, Span<byte> inlineBuffer) where T : struct where T1 : struct
{
Debug.Assert(arguments.Length == Unsafe.SizeOf<T>());
Debug.Assert(inlineBuffer.Length == Unsafe.SizeOf<T1>());
return callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0], ref MemoryMarshal.Cast<byte, T1>(inlineBuffer)[0]);
}
protected static NvInternalResult CallIoctlMethod<T>(IoctlProcessorSpan<T> callback, Span<byte> arguments) where T : struct
{
return callback(MemoryMarshal.Cast<byte, T>(arguments));
}
protected static NvInternalResult CallIoctlMethod<T, T1>(IoctlProcessorInlineSpan<T, T1> callback, Span<byte> arguments, Span<byte> inlineBuffer) where T : struct where T1 : struct
{
Debug.Assert(arguments.Length == Unsafe.SizeOf<T>());
return callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0], MemoryMarshal.Cast<byte, T1>(inlineBuffer));
}
public abstract void Close();
}
}