mirror of
https://github.com/ryujinx-mirror/ryujinx.git
synced 2024-12-05 21:17:56 +01:00
138 lines
4.3 KiB
C#
138 lines
4.3 KiB
C#
|
using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.Common;
|
|||
|
using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.Npad;
|
|||
|
using System;
|
|||
|
|
|||
|
namespace Ryujinx.HLE.Ui.Input
|
|||
|
{
|
|||
|
/// <summary>
|
|||
|
/// Class that converts Hid entries for the Npad into pressed / released events.
|
|||
|
/// </summary>
|
|||
|
class NpadReader
|
|||
|
{
|
|||
|
private readonly Switch _device;
|
|||
|
private NpadCommonState[] _lastStates;
|
|||
|
|
|||
|
public event NpadButtonHandler NpadButtonUpEvent;
|
|||
|
public event NpadButtonHandler NpadButtonDownEvent;
|
|||
|
|
|||
|
public NpadReader(Switch device)
|
|||
|
{
|
|||
|
_device = device;
|
|||
|
_lastStates = new NpadCommonState[_device.Hid.SharedMemory.Npads.Length];
|
|||
|
}
|
|||
|
|
|||
|
public NpadButton GetCurrentButtonsOfNpad(int npadIndex)
|
|||
|
{
|
|||
|
return _lastStates[npadIndex].Buttons;
|
|||
|
}
|
|||
|
|
|||
|
public NpadButton GetCurrentButtonsOfAllNpads()
|
|||
|
{
|
|||
|
NpadButton buttons = 0;
|
|||
|
|
|||
|
foreach (var state in _lastStates)
|
|||
|
{
|
|||
|
buttons |= state.Buttons;
|
|||
|
}
|
|||
|
|
|||
|
return buttons;
|
|||
|
}
|
|||
|
|
|||
|
private ref RingLifo<NpadCommonState> GetCommonStateLifo(ref NpadInternalState npad)
|
|||
|
{
|
|||
|
switch (npad.StyleSet)
|
|||
|
{
|
|||
|
case NpadStyleTag.FullKey:
|
|||
|
return ref npad.FullKey;
|
|||
|
case NpadStyleTag.Handheld:
|
|||
|
return ref npad.Handheld;
|
|||
|
case NpadStyleTag.JoyDual:
|
|||
|
return ref npad.JoyDual;
|
|||
|
case NpadStyleTag.JoyLeft:
|
|||
|
return ref npad.JoyLeft;
|
|||
|
case NpadStyleTag.JoyRight:
|
|||
|
return ref npad.JoyRight;
|
|||
|
case NpadStyleTag.Palma:
|
|||
|
return ref npad.Palma;
|
|||
|
default:
|
|||
|
return ref npad.SystemExt;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public void Update(bool supressEvents=false)
|
|||
|
{
|
|||
|
ref var npads = ref _device.Hid.SharedMemory.Npads;
|
|||
|
|
|||
|
// Process each input individually.
|
|||
|
for (int npadIndex = 0; npadIndex < npads.Length; npadIndex++)
|
|||
|
{
|
|||
|
UpdateNpad(npadIndex, supressEvents);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
private void UpdateNpad(int npadIndex, bool supressEvents)
|
|||
|
{
|
|||
|
const int MaxEntries = 1024;
|
|||
|
|
|||
|
ref var npadState = ref _device.Hid.SharedMemory.Npads[npadIndex];
|
|||
|
ref var lastEntry = ref _lastStates[npadIndex];
|
|||
|
|
|||
|
var fullKeyEntries = GetCommonStateLifo(ref npadState.InternalState).ReadEntries(MaxEntries);
|
|||
|
|
|||
|
int firstEntryNum;
|
|||
|
|
|||
|
// Scan the LIFO for the first entry that is newer that what's already processed.
|
|||
|
for (firstEntryNum = fullKeyEntries.Length - 1; firstEntryNum >= 0 && fullKeyEntries[firstEntryNum].Object.SamplingNumber <= lastEntry.SamplingNumber; firstEntryNum--) ;
|
|||
|
|
|||
|
if (firstEntryNum == -1)
|
|||
|
{
|
|||
|
return;
|
|||
|
}
|
|||
|
|
|||
|
for (; firstEntryNum >= 0; firstEntryNum--)
|
|||
|
{
|
|||
|
var entry = fullKeyEntries[firstEntryNum];
|
|||
|
|
|||
|
// The interval of valid entries should be contiguous.
|
|||
|
if (entry.SamplingNumber < lastEntry.SamplingNumber)
|
|||
|
{
|
|||
|
break;
|
|||
|
}
|
|||
|
|
|||
|
if (!supressEvents)
|
|||
|
{
|
|||
|
ProcessNpadButtons(npadIndex, entry.Object.Buttons);
|
|||
|
}
|
|||
|
|
|||
|
lastEntry = entry.Object;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
private void ProcessNpadButtons(int npadIndex, NpadButton buttons)
|
|||
|
{
|
|||
|
NpadButton lastButtons = _lastStates[npadIndex].Buttons;
|
|||
|
|
|||
|
for (ulong buttonMask = 1; buttonMask != 0; buttonMask <<= 1)
|
|||
|
{
|
|||
|
NpadButton currentButton = (NpadButton)buttonMask & buttons;
|
|||
|
NpadButton lastButton = (NpadButton)buttonMask & lastButtons;
|
|||
|
|
|||
|
if (lastButton != 0)
|
|||
|
{
|
|||
|
if (currentButton == 0)
|
|||
|
{
|
|||
|
NpadButtonUpEvent?.Invoke(npadIndex, lastButton);
|
|||
|
}
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
if (currentButton != 0)
|
|||
|
{
|
|||
|
NpadButtonDownEvent?.Invoke(npadIndex, currentButton);
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|