Ryujinx/Ryujinx.HLE/HOS/Services/Hid/HidDevices/KeyboardDevice.cs
Mary 51fa1b2cb0
hle: Improve safety (#2778)
* timezone: Make timezone implementation safe

* hle: Do not use TrimEnd to parse ASCII strings

This adds an util that handle reading an ASCII string in a safe way.
Previously it was possible to read malformed data that could cause
various undefined behaviours in multiple services.

* hid: Remove an useless unsafe modifier on keyboard update

* Address gdkchan's comment

* Address gdkchan's comment
2021-10-24 19:13:20 -03:00

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1,007 B
C#

using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.Common;
using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.Keyboard;
using System;
namespace Ryujinx.HLE.HOS.Services.Hid
{
public class KeyboardDevice : BaseDevice
{
public KeyboardDevice(Switch device, bool active) : base(device, active) { }
public void Update(KeyboardInput keyState)
{
ref RingLifo<KeyboardState> lifo = ref _device.Hid.SharedMemory.Keyboard;
if (!Active)
{
lifo.Clear();
return;
}
ref KeyboardState previousEntry = ref lifo.GetCurrentEntryRef();
KeyboardState newState = new KeyboardState
{
SamplingNumber = previousEntry.SamplingNumber + 1,
};
keyState.Keys.AsSpan().CopyTo(newState.Keys.RawData.ToSpan());
newState.Modifiers = (KeyboardModifier)keyState.Modifier;
lifo.Write(ref newState);
}
}
}