Add Old-Style Motion Setting

src/res/qml/SettingsPage.qml

@@ -34,6 +34,14 @@ MyStackViewPage {
             }
         }
 
+        MyToggleButton {
+            id: oldStyleMotionToggle
+            text: "Old-Style Motion (per-frame disk writes)"
+            onCheckedChanged: {
+                MoveCenterTabController.setOldStyleMotion(checked, true)
+            }
+        }
+
         Item {
             Layout.fillHeight: true
         }
@@ -42,6 +50,7 @@ MyStackViewPage {
             settingsAutoStartToggle.checked = SettingsTabController.autoStartEnabled
             forceReviveToggle.checked = SettingsTabController.forceRevivePage
             allowExternalEditsToggle.checked = MoveCenterTabController.allowExternalEdits
+            oldStyleMotionToggle.checked = MoveCenterTabController.oldStyleMotion
         }
 
         Connections {
@@ -59,6 +68,9 @@ MyStackViewPage {
             onAllowExternalEditsChanged: {
                 allowExternalEditsToggle.checked = MoveCenterTabController.allowExternalEdits
             }
+            onOldStyleMotionChanged: {
+                oldStyleMotionToggle.checked = MoveCenterTabController.oldStyleMotion
+            }
         }
     }
 }

src/tabcontrollers/MoveCenterTabController.cpp

@@ -128,6 +128,11 @@ void MoveCenterTabController::initStage1()
     {
         m_allowExternalEdits = value.toBool();
     }
+    value = settings->value( "oldStyleMotion", m_oldStyleMotion );
+    if ( value.isValid() && !value.isNull() )
+    {
+        m_oldStyleMotion = value.toBool();
+    }
     settings->endGroup();
     m_lastDragUpdateTimePoint = std::chrono::steady_clock::now();
     m_lastGravityUpdateTimePoint = std::chrono::steady_clock::now();
@@ -797,6 +802,31 @@ void MoveCenterTabController::setAllowExternalEdits( bool value, bool notify )
     }
 }
 
+bool MoveCenterTabController::oldStyleMotion() const
+{
+    return m_oldStyleMotion;
+}
+
+void MoveCenterTabController::setOldStyleMotion( bool value, bool notify )
+{
+    // detect incoming change to old style, and hide working set
+    if ( value && !m_oldStyleMotion )
+    {
+        vr::VRChaperoneSetup()->HideWorkingSetPreview();
+    }
+
+    m_oldStyleMotion = value;
+    auto settings = OverlayController::appSettings();
+    settings->beginGroup( "playspaceSettings" );
+    settings->setValue( "oldStyleMotion", m_oldStyleMotion );
+    settings->endGroup();
+    settings->sync();
+    if ( notify )
+    {
+        emit oldStyleMotionChanged( m_oldStyleMotion );
+    }
+}
+
 void MoveCenterTabController::modOffsetX( float value, bool notify )
 {
     if ( !m_lockXToggle )
@@ -2259,8 +2289,17 @@ void MoveCenterTabController::updateSpace()
     vr::VRChaperoneSetup()->SetWorkingStandingZeroPoseToRawTrackingPose(
         &offsetUniverseCenter );
 
-    vr::VRChaperoneSetup()->ShowWorkingSetPreview();
-    m_chaperoneCommitted = false;
+    if ( m_oldStyleMotion )
+    {
+        vr::VRChaperoneSetup()->CommitWorkingCopy(
+            vr::EChaperoneConfigFile_Live );
+        m_chaperoneCommitted = true;
+    }
+    else
+    {
+        vr::VRChaperoneSetup()->ShowWorkingSetPreview();
+        m_chaperoneCommitted = false;
+    }
 
     // loadChaperoneData( false ), false so that we don't load live data, and
     // reference the working set instead.

src/tabcontrollers/MoveCenterTabController.h

@@ -73,6 +73,8 @@ class MoveCenterTabController : public QObject
             setShowLogMatricesButton NOTIFY showLogMatricesButtonChanged )
     Q_PROPERTY( bool allowExternalEdits READ allowExternalEdits WRITE
                     setAllowExternalEdits NOTIFY allowExternalEditsChanged )
+    Q_PROPERTY( bool oldStyleMotion READ oldStyleMotion WRITE setOldStyleMotion
+                    NOTIFY oldStyleMotionChanged )
 
 private:
     OverlayController* parent;
@@ -148,6 +150,7 @@ private:
     bool m_seatedModeDetected = false;
     bool m_showLogMatricesButton = false;
     bool m_allowExternalEdits = false;
+    bool m_oldStyleMotion = false;
     unsigned settingsUpdateCounter = 0;
     int m_hmdRotationStatsUpdateCounter = 0;
     unsigned m_dragComfortFrameSkipCounter = 0;
@@ -204,6 +207,7 @@ public:
     bool lockZToggle() const;
     bool showLogMatricesButton() const;
     bool allowExternalEdits() const;
+    bool oldStyleMotion() const;
     double getHmdYawTotal();
     void resetHmdYawTotal();
     void incomingSeatedReset();
@@ -264,6 +268,7 @@ public slots:
     void setLockZ( bool value, bool notify = true );
     void setShowLogMatricesButton( bool value, bool notify = true );
     void setAllowExternalEdits( bool value, bool notify = true );
+    void setOldStyleMotion( bool value, bool notify = true );
 
     void shutdown();
     void reset();
@@ -297,6 +302,7 @@ signals:
     void requireLockZChanged( bool value );
     void showLogMatricesButtonChanged( bool value );
     void allowExternalEditsChanged( bool value );
+    void oldStyleMotionChanged( bool value );
 };
 
 } // namespace advsettings