From b513e35ea8a3169754a993447fd7ed1bf4c96714 Mon Sep 17 00:00:00 2001
From: thefiddler <stapostol@gmail.com>
Date: Thu, 2 Jan 2014 19:24:38 +0100
Subject: [PATCH] [SDL2] Implemented PacketNumber property

---
 Source/OpenTK/Platform/SDL2/Sdl2JoystickDriver.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Source/OpenTK/Platform/SDL2/Sdl2JoystickDriver.cs b/Source/OpenTK/Platform/SDL2/Sdl2JoystickDriver.cs
index 25b6b253..faff9226 100644
--- a/Source/OpenTK/Platform/SDL2/Sdl2JoystickDriver.cs
+++ b/Source/OpenTK/Platform/SDL2/Sdl2JoystickDriver.cs
@@ -42,6 +42,7 @@ namespace OpenTK.Platform.SDL2
         {
             public IntPtr Handle { get; set; }
             public Guid Guid { get; set; }
+            public int PacketNumber { get; set; }
             public int HatCount { get; set; }
             public int BallCount { get; set; }
             public bool IsConnected { get; set; }
@@ -73,7 +74,6 @@ namespace OpenTK.Platform.SDL2
         readonly Dictionary<int, int> sdl_instanceid_to_controllers = new Dictionary<int, int>();
 #endif
 
-
         public Sdl2JoystickDriver()
         {
             joysticks_readonly = joysticks.AsReadOnly();
@@ -339,6 +339,7 @@ namespace OpenTK.Platform.SDL2
                 JoystickDevice<Sdl2JoystickDetails> joystick = (JoystickDevice<Sdl2JoystickDetails>)joysticks[index];
                 float value = ev.Value * RangeMultiplier;
                 joystick.SetAxis((JoystickAxis)ev.Axis, value);
+                joystick.Details.PacketNumber = Math.Max(0, unchecked(joystick.Details.PacketNumber + 1));
             }
             else
             {
@@ -354,6 +355,7 @@ namespace OpenTK.Platform.SDL2
                 int index = sdl_instanceid_to_joysticks[id];
                 JoystickDevice<Sdl2JoystickDetails> joystick = (JoystickDevice<Sdl2JoystickDetails>)joysticks[index];
                 // Todo: does it make sense to support balls?
+                joystick.Details.PacketNumber = Math.Max(0, unchecked(joystick.Details.PacketNumber + 1));
             }
             else
             {
@@ -369,6 +371,7 @@ namespace OpenTK.Platform.SDL2
                 int index = sdl_instanceid_to_joysticks[id];
                 JoystickDevice<Sdl2JoystickDetails> joystick = (JoystickDevice<Sdl2JoystickDetails>)joysticks[index];
                 joystick.SetButton((JoystickButton)ev.Button, ev.State == State.Pressed);
+                joystick.Details.PacketNumber = Math.Max(0, unchecked(joystick.Details.PacketNumber + 1));
             }
             else
             {
@@ -384,6 +387,7 @@ namespace OpenTK.Platform.SDL2
                 int index = sdl_instanceid_to_joysticks[id];
                 JoystickDevice<Sdl2JoystickDetails> joystick = (JoystickDevice<Sdl2JoystickDetails>)joysticks[index];
                 // Todo: map hat to an extra axis
+                joystick.Details.PacketNumber = Math.Max(0, unchecked(joystick.Details.PacketNumber + 1));
             }
             else
             {
@@ -588,6 +592,7 @@ namespace OpenTK.Platform.SDL2
                 }
 
                 state.SetIsConnected(joystick.Details.IsConnected);
+                state.SetPacketNumber(joystick.Details.PacketNumber);
             }
 
             return state;