From 7f38c541df7a816da58da4b37f8e36aad3af28e5 Mon Sep 17 00:00:00 2001
From: Daosheng Mu <daoshengmu@gmail.com>
Date: Fri, 10 May 2019 13:16:52 -0700
Subject: [PATCH] Adjust Focus touchpad scroll range to be the same with Oculus
 VR.

---
 app/src/wavevr/cpp/DeviceDelegateWaveVR.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/src/wavevr/cpp/DeviceDelegateWaveVR.cpp b/app/src/wavevr/cpp/DeviceDelegateWaveVR.cpp
index d4d8b5c6c..098d5fe53 100644
--- a/app/src/wavevr/cpp/DeviceDelegateWaveVR.cpp
+++ b/app/src/wavevr/cpp/DeviceDelegateWaveVR.cpp
@@ -282,7 +282,8 @@ struct DeviceDelegateWaveVR::State {
 
       if (touchpadTouched) {
         WVR_Axis_t axis = WVR_GetInputAnalogAxis(controller.type, WVR_InputId_Alias1_Touchpad);
-        delegate->SetTouchPosition(controller.index, axis.x, -axis.y);
+        // We are matching touch pad range from {-1, 1} to the Oculus {0, 1}.
+        delegate->SetTouchPosition(controller.index, (axis.x + 1) * 0.5, (-axis.y + 1) * 0.5);
         immersiveAxes[0] = axis.x;
         immersiveAxes[1] = -axis.y;
         controller.touched = true;