Add calibrating banner

.gitignore

@@ -6,4 +6,6 @@ out/
 *.po~
 kwin/src/xrdriveripc/xrdriveripc.py
 kwin/VERSION
-kwin/build-test/
+kwin/build-test/
+kwin/src/qml/calibrating.png
+kwin/src/qml/custom_banner.png

bin/package_kwin

@@ -75,6 +75,7 @@ fi
 # this file is in .gitignore so it doesn't get duplicated
 cp ui/modules/PyXRLinuxDriverIPC/xrdriveripc.py $KWIN_DIR/src/xrdriveripc/xrdriveripc.py
 cp VERSION $KWIN_DIR
+cp modules/sombrero/*.png $KWIN_DIR/src/qml
 
 pushd $KWIN_DIR > /dev/null
 if [ -z "${LOCAL_BUILD_SYSTEM+x}" ]; then

kwin/src/CMakeLists.txt

@@ -67,6 +67,4 @@ target_link_libraries(breezy_desktop
 )
 
 
-install(DIRECTORY qml DESTINATION ${KDE_INSTALL_DATADIR}/kwin/effects/breezy_desktop)
+install(DIRECTORY qml DESTINATION ${KDE_INSTALL_DATADIR}/kwin/effects/breezy_desktop)
-install(FILES qml/cursorOverlay.frag DESTINATION ${KDE_INSTALL_DATADIR}/kwin/effects/breezy_desktop/qml)
-install(FILES qml/cursorOverlay.vert DESTINATION ${KDE_INSTALL_DATADIR}/kwin/effects/breezy_desktop/qml)

kwin/src/breezydesktopeffect.cpp

@@ -509,7 +509,11 @@ void BreezyDesktopEffect::updateImuRotation() {
 
     float imuData[4 * DataView::IMU_QUAT_ENTRIES]; // 4 quaternion-sized rows
     memcpy(imuData, data + DataView::IMU_QUAT_DATA[DataView::OFFSET_INDEX], sizeof(imuData));
+    bool wasImuResetState = m_imuResetState;
     m_imuResetState = (imuData[0] == 0.0f && imuData[1] == 0.0f && imuData[2] == 0.0f && imuData[3] == 1.0f);
+    if (m_imuResetState != wasImuResetState) {
+        Q_EMIT imuResetStateChanged();
+    }
 
     // convert NWU to EUS by passing root.rotation values: -y, z, -x
     QQuaternion quatT0(imuData[3], -imuData[1], imuData[2], -imuData[0]);
@@ -532,7 +536,6 @@ void BreezyDesktopEffect::updateImuRotation() {
     m_imuTimeElapsedMs = static_cast<quint32>(imuData[imuDataOffset + 0] - imuData[imuDataOffset + 1]);
 
     m_imuTimestamp = imuDateMs;
-    Q_EMIT imuRotationsChanged();
 }
 
 QString BreezyDesktopEffect::cursorImageSource() const

kwin/src/breezydesktopeffect.h

@@ -16,7 +16,7 @@ namespace KWin
         Q_OBJECT
         Q_PROPERTY(bool isEnabled READ isEnabled NOTIFY enabledStateChanged)
         Q_PROPERTY(bool zoomOnFocusEnabled READ isZoomOnFocusEnabled WRITE setZoomOnFocusEnabled NOTIFY zoomOnFocusChanged)
-        Q_PROPERTY(bool imuResetState READ imuResetState)
+        Q_PROPERTY(bool imuResetState READ imuResetState NOTIFY imuResetStateChanged)
         Q_PROPERTY(QList<QQuaternion> imuRotations READ imuRotations)
         Q_PROPERTY(quint32 imuTimeElapsedMs READ imuTimeElapsedMs)
         Q_PROPERTY(quint64 imuTimestamp READ imuTimestamp)
@@ -92,7 +92,7 @@ namespace KWin
         void displayWrappingSchemeChanged();
         void enabledStateChanged();
         void zoomOnFocusChanged();
-        void imuRotationsChanged();
+        void imuResetStateChanged();
         void cursorImageSourceChanged();
         void cursorPosChanged();
         void devicePropertiesChanged();

kwin/src/qml/SingleDesktopView.qml

@@ -3,6 +3,8 @@ import QtQuick
 Item {
     id: singleDesktopView
     property point cursorPos: effect.cursorPos
+    property bool supportsXR: false
+    property bool showCalibratingBanner: false
 
     function cursorInBounds() {
         const x = cursorPos.x
@@ -15,6 +17,7 @@ Item {
     }
 
     DesktopView {
+        id: desktopViewComponent
         screen: targetScreen
         width: targetScreen.geometry.width
         height: targetScreen.geometry.height
@@ -27,6 +30,13 @@ Item {
         z: 9999 // ensure on top
     }
 
+    Image {
+        source: effect.customBannerEnabled ? "custom_banner.png" : "calibrating.png"
+        visible: supportsXR && showCalibratingBanner
+        anchors.horizontalCenter: desktopViewComponent.horizontalCenter
+        anchors.bottom: desktopViewComponent.bottom
+    }
+
     onCursorPosChanged: {
         if (singleDesktopView.cursorInBounds()) {
             const newX = effect.cursorPos.x - targetScreen.geometry.x

kwin/src/qml/main.qml

@@ -87,9 +87,16 @@ Item {
         return displays.monitorsToPlacements(fovDetails, adjustedGeometries, effect.displaySpacing);
     }
 
+    property bool targetScreenSupported: supportedModels.some(model => root.targetScreen.model.endsWith(model))
+    property bool imuResetState: effect.imuResetState
+    property bool isEnabled: effect.isEnabled
+
     Component {
         id: desktopViewComponent
-        SingleDesktopView {}
+        SingleDesktopView {
+            supportsXR: targetScreenSupported
+            showCalibratingBanner: isEnabled && imuResetState
+        }
     }
 
     Component {
@@ -121,9 +128,21 @@ Item {
         id: viewLoader
         anchors.fill: parent
     }
+
+    function checkLoadedComponent() {
+        const show3DView = targetScreenSupported && isEnabled && !imuResetState;
+        viewLoader.sourceComponent = show3DView ? view3DComponent : desktopViewComponent;
+    }
+
+    onImuResetStateChanged: {
+        checkLoadedComponent();
+    }
+
+    onIsEnabledChanged: {
+        checkLoadedComponent();
+    }
     
     Component.onCompleted: {
-        const targetScreenSupported = supportedModels.some(model => root.targetScreen.model.endsWith(model));
+        checkLoadedComponent();
-        viewLoader.sourceComponent = targetScreenSupported ? view3DComponent : desktopViewComponent;
     }
 }