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ALVRFreePIEPlugin.cs
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using FreePIE.Core.Contracts;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.MemoryMappedFiles;
using System.Text;
using System.Threading;
namespace ALVRFreePIE
{
[GlobalType(Type = typeof(ALVRFreePIEPluginGlobal))]
public class ALVRFreePIEPlugin : IPlugin
{
ALVRFreePIEPluginGlobal global;
public object CreateGlobal()
{
return global = new ALVRFreePIEPluginGlobal(this);
}
public Action Start()
{
return null;
}
public void Stop()
{
}
public event EventHandler Started;
public string FriendlyName
{
get { return "ALVR FreePIE Plugin"; }
}
public bool GetProperty(int index, IPluginProperty property)
{
if (index == 0)
{
property.Name = "SomeProperty";
property.Caption = "ALVR FreePIE v3";
property.HelpText = property.Caption;
property.Choices.Add(property.Caption, 1);
property.DefaultValue = 1;
return true;
}
return false;
}
public bool SetProperties(Dictionary<string, object> properties)
{
return true;
}
public void DoBeforeNextExecute()
{
CheckMemoryMappedFileExistence();
if (memoryMappedFile == null)
{
return;
}
try
{
mutex.WaitOne(-1);
UInt64[] inputControllerButtons = { 0, 0 };
using (var mappedStream = memoryMappedFile.CreateViewStream())
{
var reader = new BinaryReader(mappedStream);
UInt32 version = reader.ReadUInt32();
if (version == ALVR_FREEPIE_SIGNATURE_V3)
{
reader.ReadUInt32();
// Head orientation
global.input_head_orientation[0] = reader.ReadDouble();
global.input_head_orientation[1] = reader.ReadDouble();
global.input_head_orientation[2] = reader.ReadDouble();
// Controller orientation
for (int i = 0; i < ALVR_FREEPIE_MAX_CONTROLLERS; i++)
{
global.input_controller_orientation[i][0] = reader.ReadDouble();
global.input_controller_orientation[i][1] = reader.ReadDouble();
global.input_controller_orientation[i][2] = reader.ReadDouble();
}
// Head position
global.input_head_position[0] = reader.ReadDouble();
global.input_head_position[1] = reader.ReadDouble();
global.input_head_position[2] = reader.ReadDouble();
// Controller position
for (int i = 0; i < ALVR_FREEPIE_MAX_CONTROLLERS; i++)
{
global.input_controller_position[i][0] = reader.ReadDouble();
global.input_controller_position[i][1] = reader.ReadDouble();
global.input_controller_position[i][2] = reader.ReadDouble();
}
for (int i = 0; i < ALVR_FREEPIE_MAX_CONTROLLERS; i++)
{
global.input_trackpad[i][0] = reader.ReadDouble();
global.input_trackpad[i][1] = reader.ReadDouble();
}
for (int i = 0; i < ALVR_FREEPIE_MAX_CONTROLLERS; i++)
{
inputControllerButtons[i] = reader.ReadUInt64();
}
global.input_haptic_feedback[0][0] = reader.ReadDouble();
global.input_haptic_feedback[0][1] = reader.ReadDouble();
global.input_haptic_feedback[0][2] = reader.ReadDouble();
global.input_haptic_feedback[1][0] = reader.ReadDouble();
global.input_haptic_feedback[1][1] = reader.ReadDouble();
global.input_haptic_feedback[1][2] = reader.ReadDouble();
}
}
using (var mappedStream = memoryMappedFile.CreateViewStream())
{
mappedStream.Seek(sizeof(UInt32), SeekOrigin.Current);
UInt32 flags = 0;
if (global.override_head_orientation)
{
flags |= ALVR_FREEPIE_FLAG_OVERRIDE_HEAD_ORIENTATION;
}
if (global.override_controller_orientation)
{
flags |= ALVR_FREEPIE_FLAG_OVERRIDE_CONTROLLER_ORIENTATION0;
}
if (global.override_head_position)
{
flags |= ALVR_FREEPIE_FLAG_OVERRIDE_HEAD_POSITION;
}
if (global.override_controller_position)
{
flags |= ALVR_FREEPIE_FLAG_OVERRIDE_CONTROLLER_POSITION0;
}
flags |= ALVR_FREEPIE_FLAG_OVERRIDE_BUTTONS;
mappedStream.Write(BitConverter.GetBytes(flags), 0, sizeof(UInt32));
mappedStream.Seek(sizeof(double) * 22 + sizeof(UInt64) * 2 + sizeof(double) * 6, SeekOrigin.Current);
mappedStream.Write(BitConverter.GetBytes(global.two_controllers ? 2 : 1), 0, sizeof(UInt32));
UInt32[] buttons = { 0, 0 };
for (int j = 0; j < 2; j++)
{
for (int i = 0; i < BUTTONS.Length; i++)
{
buttons[j] |= global.buttons[j][i] ? (1U << i) : 0U;
}
}
mappedStream.Write(BitConverter.GetBytes(buttons[0]), 0, sizeof(UInt32));
mappedStream.Write(BitConverter.GetBytes(buttons[1]), 0, sizeof(UInt32));
mappedStream.Write(BitConverter.GetBytes(global.head_orientation[0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.head_orientation[1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.head_orientation[2]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_orientation[0][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_orientation[0][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_orientation[0][2]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_orientation[1][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_orientation[1][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_orientation[1][2]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.head_position[0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.head_position[1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.head_position[2]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_position[0][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_position[0][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_position[0][2]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_position[1][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_position[1][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.controller_position[1][2]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trigger[0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trigger[1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trigger_left[0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trigger_left[1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trigger_right[0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trigger_right[1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_left[0][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_left[0][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_left[1][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_left[1][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_right[0][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_right[0][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_right[1][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.joystick_right[1][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trackpad[0][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trackpad[0][1]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trackpad[1][0]), 0, sizeof(double));
mappedStream.Write(BitConverter.GetBytes(global.trackpad[1][1]), 0, sizeof(double));
var bytes = Encoding.UTF8.GetBytes(global.message);
mappedStream.Write(bytes, 0, Math.Min(bytes.Length, ALVR_FREEPIE_MESSAGE_LENGTH - 1));
mappedStream.WriteByte(0);
}
for (int i = 0; i < ALVR_FREEPIE_MAX_CONTROLLERS; i++)
{
for (int j = 0; j < INPUT_BUTTONS.Length; j++)
{
global.input_buttons[i][j] = (inputControllerButtons[i] & (1U << j)) != 0;
}
}
}
finally
{
mutex.ReleaseMutex();
}
}
private void CheckMemoryMappedFileExistence()
{
if (memoryMappedFile != null)
{
return;
}
try
{
memoryMappedFile = MemoryMappedFile.OpenExisting(ALVR_FREEPIE_FILEMAPPING_NAME);
mutex = new Mutex(false, ALVR_FREEPIE_MUTEX_NAME);
}
catch (Exception)
{
}
}
static readonly string ALVR_FREEPIE_FILEMAPPING_NAME = "ALVR_FREEPIE_FILEMAPPING_13B65572-591A-4248-A2F6-BAC2D89EE3B8";
static readonly string ALVR_FREEPIE_MUTEX_NAME = "ALVR_FREEPIE_MUTEX_AA77F1C3-86E4-4EF9-AAA2-5C40CF380D7A";
static readonly UInt32 ALVR_FREEPIE_SIGNATURE_V3 = 0x11223346;
public static readonly int ALVR_FREEPIE_PLUGIN_VERSION = 3;
static readonly UInt32 ALVR_FREEPIE_MAX_CONTROLLERS = 2;
static readonly UInt32 ALVR_FREEPIE_FLAG_OVERRIDE_HEAD_ORIENTATION = 1 << 0;
static readonly UInt32 ALVR_FREEPIE_FLAG_OVERRIDE_CONTROLLER_ORIENTATION0 = 1 << 1;
static readonly UInt32 ALVR_FREEPIE_FLAG_OVERRIDE_HEAD_POSITION = 1 << 2;
static readonly UInt32 ALVR_FREEPIE_FLAG_OVERRIDE_CONTROLLER_POSITION0 = 1 << 3;
static readonly UInt32 ALVR_FREEPIE_FLAG_OVERRIDE_BUTTONS = 1 << 4;
static readonly int ALVR_FREEPIE_MESSAGE_LENGTH = 512;
public static readonly string[] INPUT_BUTTONS = {"trackpad_click", "trackpad_touch", "back", "volume_up", "volume_down",
"a", "b", "rthumb", "rshoulder", "x", "y", "lthumb", "lshoulder"};
public static readonly string[] BUTTONS = {"system", "application_menu", "grip"
, "dpad_left", "dpad_up", "dpad_right", "dpad_down"
, "a", "b", "x", "y"
, "trackpad_click", "trackpad_touch", "trigger", "shoulder_left", "shoulder_right"
, "joystick_left", "joystick_right", "back", "guide", "start"};
MemoryMappedFile memoryMappedFile;
Mutex mutex;
}
[Global(Name = "alvr")]
public class ALVRFreePIEPluginGlobal
{
private readonly ALVRFreePIEPlugin plugin;
public ALVRFreePIEPluginGlobal(ALVRFreePIEPlugin plugin)
{
this.plugin = plugin;
}
public int InputId(string key)
{
for (int i = 0; i < ALVRFreePIEPlugin.INPUT_BUTTONS.Length; i++)
{
if (ALVRFreePIEPlugin.INPUT_BUTTONS[i] == key)
{
return i;
}
}
return -1;
}
public int Id(string key)
{
for (int i = 0; i < ALVRFreePIEPlugin.BUTTONS.Length; i++)
{
if (ALVRFreePIEPlugin.BUTTONS[i] == key)
{
return i;
}
}
return -1;
}
public int version { get; set; } = ALVRFreePIEPlugin.ALVR_FREEPIE_PLUGIN_VERSION;
public bool two_controllers { get; set; }
public bool override_head_orientation { get; set; }
public bool override_controller_orientation { get; set; }
public bool override_head_position { get; set; }
public bool override_controller_position { get; set; }
// yaw pitch roll
public double[] input_head_orientation { get; set; } = new double[3];
public double[][] input_controller_orientation { get; set; } = { new double[3], new double[3] };
// x y z
public double[] input_head_position { get; set; } = new double[3];
public double[][] input_controller_position { get; set; } = { new double[3], new double[3] };
// yaw pitch roll
public double[] head_orientation { get; set; } = new double[3];
public double[][] controller_orientation { get; set; } = { new double[3], new double[3] };
// x y z
public double[] head_position { get; set; } = new double[3];
public double[][] controller_position { get; set; } = { new double[3], new double[3] };
public bool[][] input_buttons { get; set; } = { new bool[ALVRFreePIEPlugin.INPUT_BUTTONS.Length], new bool[ALVRFreePIEPlugin.INPUT_BUTTONS.Length] };
public bool[][] buttons { get; set; } = { new bool[ALVRFreePIEPlugin.BUTTONS.Length], new bool[ALVRFreePIEPlugin.BUTTONS.Length] };
// x y
public double[][] input_trackpad { get; set; } = { new double[2], new double[2] };
public double[] trigger { get; set; } = new double[2];
public double[] trigger_left { get; set; } = new double[2];
public double[] trigger_right { get; set; } = new double[2];
// joystick_left[controller][xy]
public double[][] joystick_left { get; set; } = { new double[2], new double[2] };
// x y
public double[][] joystick_right { get; set; } = { new double[2], new double[2] };
// x y
public double[][] trackpad { get; set; } = { new double[2], new double[2] };
public string message { get; set; } = "";
//Amplitude DurationSeconds Frequency
public double[][] input_haptic_feedback { get; set; } = { new double[3], new double[3] };
}
}