Ryujinx/Ryujinx.Core/Hid/Hid.cs

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using ChocolArm64.Memory;
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using Ryujinx.Core.Logging;
using Ryujinx.Core.OsHle;
using Ryujinx.Core.OsHle.Handles;
using System;
namespace Ryujinx.Core.Input
{
public class Hid
{
/*
* Reference:
* https://github.com/reswitched/libtransistor/blob/development/lib/hid.c
* https://github.com/reswitched/libtransistor/blob/development/include/libtransistor/hid.h
* https://github.com/switchbrew/libnx/blob/master/nx/source/services/hid.c
* https://github.com/switchbrew/libnx/blob/master/nx/include/switch/services/hid.h
*/
private const int HidHeaderSize = 0x400;
private const int HidTouchScreenSize = 0x3000;
private const int HidMouseSize = 0x400;
private const int HidKeyboardSize = 0x400;
private const int HidUnkSection1Size = 0x400;
private const int HidUnkSection2Size = 0x400;
private const int HidUnkSection3Size = 0x400;
private const int HidUnkSection4Size = 0x400;
private const int HidUnkSection5Size = 0x200;
private const int HidUnkSection6Size = 0x200;
private const int HidUnkSection7Size = 0x200;
private const int HidUnkSection8Size = 0x800;
private const int HidControllerSerialsSize = 0x4000;
private const int HidControllersSize = 0x32000;
private const int HidUnkSection9Size = 0x800;
private const int HidTouchHeaderSize = 0x28;
private const int HidTouchEntrySize = 0x298;
private const int HidTouchEntryHeaderSize = 0x10;
private const int HidTouchEntryTouchSize = 0x28;
private const int HidControllerSize = 0x5000;
private const int HidControllerHeaderSize = 0x28;
private const int HidControllerLayoutsSize = 0x350;
private const int HidControllersLayoutHeaderSize = 0x20;
private const int HidControllersInputEntrySize = 0x30;
private const int HidHeaderOffset = 0;
private const int HidTouchScreenOffset = HidHeaderOffset + HidHeaderSize;
private const int HidMouseOffset = HidTouchScreenOffset + HidTouchScreenSize;
private const int HidKeyboardOffset = HidMouseOffset + HidMouseSize;
private const int HidUnkSection1Offset = HidKeyboardOffset + HidKeyboardSize;
private const int HidUnkSection2Offset = HidUnkSection1Offset + HidUnkSection1Size;
private const int HidUnkSection3Offset = HidUnkSection2Offset + HidUnkSection2Size;
private const int HidUnkSection4Offset = HidUnkSection3Offset + HidUnkSection3Size;
private const int HidUnkSection5Offset = HidUnkSection4Offset + HidUnkSection4Size;
private const int HidUnkSection6Offset = HidUnkSection5Offset + HidUnkSection5Size;
private const int HidUnkSection7Offset = HidUnkSection6Offset + HidUnkSection6Size;
private const int HidUnkSection8Offset = HidUnkSection7Offset + HidUnkSection7Size;
private const int HidControllerSerialsOffset = HidUnkSection8Offset + HidUnkSection8Size;
private const int HidControllersOffset = HidControllerSerialsOffset + HidControllerSerialsSize;
private const int HidUnkSection9Offset = HidControllersOffset + HidControllersSize;
private const int HidEntryCount = 17;
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private Logger Log;
private object ShMemLock;
private (AMemory, long)[] ShMemPositions;
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public Hid(Logger Log)
{
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this.Log = Log;
ShMemLock = new object();
ShMemPositions = new (AMemory, long)[0];
}
internal void ShMemMap(object sender, EventArgs e)
{
HSharedMem SharedMem = (HSharedMem)sender;
lock (ShMemLock)
{
ShMemPositions = SharedMem.GetVirtualPositions();
(AMemory Memory, long Position) = ShMemPositions[ShMemPositions.Length - 1];
for (long Offset = 0; Offset < Horizon.HidSize; Offset += 8)
{
Memory.WriteInt64Unchecked(Position + Offset, 0);
}
Log.PrintInfo(LogClass.Hid, $"HID shared memory successfully mapped to 0x{Position:x16}!");
Init(Memory, Position);
}
}
internal void ShMemUnmap(object sender, EventArgs e)
{
HSharedMem SharedMem = (HSharedMem)sender;
lock (ShMemLock)
{
ShMemPositions = SharedMem.GetVirtualPositions();
}
}
private void Init(AMemory Memory, long Position)
{
InitializeJoyconPair(
Memory,
Position,
JoyConColor.Body_Neon_Red,
JoyConColor.Buttons_Neon_Red,
JoyConColor.Body_Neon_Blue,
JoyConColor.Buttons_Neon_Blue);
}
private void InitializeJoyconPair(
AMemory Memory,
long Position,
JoyConColor LeftColorBody,
JoyConColor LeftColorButtons,
JoyConColor RightColorBody,
JoyConColor RightColorButtons)
{
long BaseControllerOffset = Position + HidControllersOffset + 8 * HidControllerSize;
HidControllerType Type =
HidControllerType.ControllerType_Handheld |
HidControllerType.ControllerType_JoyconPair;
bool IsHalf = false;
HidControllerColorDesc SingleColorDesc =
HidControllerColorDesc.ColorDesc_ColorsNonexistent;
JoyConColor SingleColorBody = JoyConColor.Black;
JoyConColor SingleColorButtons = JoyConColor.Black;
HidControllerColorDesc SplitColorDesc = 0;
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x0, (int)Type);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x4, IsHalf ? 1 : 0);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x8, (int)SingleColorDesc);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0xc, (int)SingleColorBody);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x10, (int)SingleColorButtons);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x14, (int)SplitColorDesc);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x18, (int)LeftColorBody);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x1c, (int)LeftColorButtons);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x20, (int)RightColorBody);
Memory.WriteInt32Unchecked(BaseControllerOffset + 0x24, (int)RightColorButtons);
}
public void SetJoyconButton(
HidControllerId ControllerId,
HidControllerLayouts ControllerLayout,
HidControllerButtons Buttons,
HidJoystickPosition LeftStick,
HidJoystickPosition RightStick)
{
lock (ShMemLock)
{
foreach ((AMemory Memory, long Position) in ShMemPositions)
{
long ControllerOffset = Position + HidControllersOffset;
ControllerOffset += (int)ControllerId * HidControllerSize;
ControllerOffset += HidControllerHeaderSize;
ControllerOffset += (int)ControllerLayout * HidControllerLayoutsSize;
long LastEntry = Memory.ReadInt64Unchecked(ControllerOffset + 0x10);
long CurrEntry = (LastEntry + 1) % HidEntryCount;
long Timestamp = GetTimestamp();
Memory.WriteInt64Unchecked(ControllerOffset + 0x0, Timestamp);
Memory.WriteInt64Unchecked(ControllerOffset + 0x8, HidEntryCount);
Memory.WriteInt64Unchecked(ControllerOffset + 0x10, CurrEntry);
Memory.WriteInt64Unchecked(ControllerOffset + 0x18, HidEntryCount - 1);
ControllerOffset += HidControllersLayoutHeaderSize;
long LastEntryOffset = ControllerOffset + LastEntry * HidControllersInputEntrySize;
ControllerOffset += CurrEntry * HidControllersInputEntrySize;
long SampleCounter = Memory.ReadInt64Unchecked(LastEntryOffset) + 1;
Memory.WriteInt64Unchecked(ControllerOffset + 0x0, SampleCounter);
Memory.WriteInt64Unchecked(ControllerOffset + 0x8, SampleCounter);
Memory.WriteInt64Unchecked(ControllerOffset + 0x10, (uint)Buttons);
Memory.WriteInt32Unchecked(ControllerOffset + 0x18, LeftStick.DX);
Memory.WriteInt32Unchecked(ControllerOffset + 0x1c, LeftStick.DY);
Memory.WriteInt32Unchecked(ControllerOffset + 0x20, RightStick.DX);
Memory.WriteInt32Unchecked(ControllerOffset + 0x24, RightStick.DY);
Memory.WriteInt64Unchecked(ControllerOffset + 0x28,
(uint)HidControllerConnState.Controller_State_Connected |
(uint)HidControllerConnState.Controller_State_Wired);
}
}
}
public void SetTouchPoints(params HidTouchPoint[] Points)
{
lock (ShMemLock)
{
foreach ((AMemory Memory, long Position) in ShMemPositions)
{
long TouchScreenOffset = Position + HidTouchScreenOffset;
long LastEntry = Memory.ReadInt64Unchecked(TouchScreenOffset + 0x10);
long CurrEntry = (LastEntry + 1) % HidEntryCount;
long Timestamp = GetTimestamp();
Memory.WriteInt64Unchecked(TouchScreenOffset + 0x0, Timestamp);
Memory.WriteInt64Unchecked(TouchScreenOffset + 0x8, HidEntryCount);
Memory.WriteInt64Unchecked(TouchScreenOffset + 0x10, CurrEntry);
Memory.WriteInt64Unchecked(TouchScreenOffset + 0x18, HidEntryCount - 1);
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Memory.WriteInt64Unchecked(TouchScreenOffset + 0x20, Timestamp);
long TouchEntryOffset = TouchScreenOffset + HidTouchHeaderSize;
long LastEntryOffset = TouchEntryOffset + LastEntry * HidTouchEntrySize;
long SampleCounter = Memory.ReadInt64Unchecked(LastEntryOffset) + 1;
TouchEntryOffset += CurrEntry * HidTouchEntrySize;
Memory.WriteInt64Unchecked(TouchEntryOffset + 0x0, SampleCounter);
Memory.WriteInt64Unchecked(TouchEntryOffset + 0x8, Points.Length);
TouchEntryOffset += HidTouchEntryHeaderSize;
const int Padding = 0;
int Index = 0;
foreach (HidTouchPoint Point in Points)
{
Memory.WriteInt64Unchecked(TouchEntryOffset + 0x0, Timestamp);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x8, Padding);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0xc, Index++);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x10, Point.X);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x14, Point.Y);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x18, Point.DiameterX);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x1c, Point.DiameterY);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x20, Point.Angle);
Memory.WriteInt32Unchecked(TouchEntryOffset + 0x24, Padding);
TouchEntryOffset += HidTouchEntryTouchSize;
}
}
}
}
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private static long GetTimestamp()
{
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return (long)((ulong)Environment.TickCount * 19_200);
}
}
}