From 73ec40dae675e1ed9cb90f2c006e537cc102ca73 Mon Sep 17 00:00:00 2001
From: Brad Davis <bdavis@saintandreas.org>
Date: Tue, 12 Apr 2016 10:05:21 -0700
Subject: [PATCH] Making a debug mechanism for force OpenVR

---
 plugins/openvr/src/OpenVrDisplayPlugin.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/plugins/openvr/src/OpenVrDisplayPlugin.cpp b/plugins/openvr/src/OpenVrDisplayPlugin.cpp
index 21fc6d353b..7c26e998e6 100644
--- a/plugins/openvr/src/OpenVrDisplayPlugin.cpp
+++ b/plugins/openvr/src/OpenVrDisplayPlugin.cpp
@@ -9,6 +9,7 @@
 
 #include <memory>
 
+#include <QtCore/QProcessEnvironment>
 #include <QMainWindow>
 #include <QLoggingCategory>
 #include <QGLWidget>
@@ -29,6 +30,10 @@ Q_DECLARE_LOGGING_CATEGORY(displayplugins)
 const QString OpenVrDisplayPlugin::NAME("OpenVR (Vive)");
 const QString StandingHMDSensorMode = "Standing HMD Sensor Mode"; // this probably shouldn't be hardcoded here
 
+static const QString DEBUG_FLAG("HIFI_DEBUG_OPENVR");
+static bool enableDebugOpenVR = QProcessEnvironment::systemEnvironment().contains(DEBUG_FLAG);
+
+
 static vr::IVRCompositor* _compositor{ nullptr };
 vr::TrackedDevicePose_t _trackedDevicePose[vr::k_unMaxTrackedDeviceCount];
 mat4 _trackedDevicePoseMat4[vr::k_unMaxTrackedDeviceCount];
@@ -38,7 +43,7 @@ static mat4 _sensorResetMat;
 static std::array<vr::Hmd_Eye, 2> VR_EYES { { vr::Eye_Left, vr::Eye_Right } };
 
 bool OpenVrDisplayPlugin::isSupported() const {
-    return !isOculusPresent() && vr::VR_IsHmdPresent();
+    return (enableDebugOpenVR || !isOculusPresent()) && vr::VR_IsHmdPresent();
 }
 
 bool OpenVrDisplayPlugin::internalActivate() {