From b41a66922340839a2286329f8a854f943e830622 Mon Sep 17 00:00:00 2001
From: Travis Nickles <nickles.travis@gmail.com>
Date: Sat, 25 Mar 2017 16:32:45 -0700
Subject: [PATCH] Interpolate L2 and R2 based on dead zone values

---
 DS4Windows/DS4Control/Mapping.cs | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/DS4Windows/DS4Control/Mapping.cs b/DS4Windows/DS4Control/Mapping.cs
index 24b06ed..dbdf172 100644
--- a/DS4Windows/DS4Control/Mapping.cs
+++ b/DS4Windows/DS4Control/Mapping.cs
@@ -470,10 +470,33 @@ namespace DS4Windows
                 dState.RX = (byte)(Math.Cos(r) * (127.5f + RSDeadzone[device]) + 127.5f);
                 dState.RY = (byte)(Math.Sin(r) * (127.5f + RSDeadzone[device]) + 127.5f);
             }
-            if (L2Deadzone[device] > 0 && cState.L2 < L2Deadzone[device])
-                dState.L2 = 0;
-            if (R2Deadzone[device] > 0 && cState.R2 < R2Deadzone[device])
-                dState.R2 = 0;
+
+            byte l2Deadzone = L2Deadzone[device];
+            if (l2Deadzone > 0)
+            {
+                if (cState.L2 > l2Deadzone)
+                {
+                    dState.L2 = (byte)(((cState.L2 - l2Deadzone) / (double)(255 - l2Deadzone)) * 255);
+                }
+                else
+                {
+                    dState.L2 = 0;
+                }
+            }
+
+            byte r2Deadzone = R2Deadzone[device];
+            if (r2Deadzone > 0)
+            {
+                if (cState.R2 > r2Deadzone)
+                {
+                    dState.R2 = (byte)(((cState.R2 - l2Deadzone) / (double)(255 - r2Deadzone)) * 255);
+                }
+                else
+                {
+                    dState.R2 = 0;
+                }
+            }
+
             if (LSSens[device] != 1)
             {
                 dState.LX = (byte)Clamp(0, LSSens[device] * (dState.LX - 127) + 127, 255);