diff --git a/cmds/surfacereplayer/proto/src/trace.proto b/cmds/surfacereplayer/proto/src/trace.proto
index 3798ba7..29d4409 100644
--- a/cmds/surfacereplayer/proto/src/trace.proto
+++ b/cmds/surfacereplayer/proto/src/trace.proto
@@ -100,6 +100,10 @@
     required uint32 layer_stack = 1;
 }
 
+message DisplayFlagsChange {
+    required uint32 flags = 1;
+}
+
 message HiddenFlagChange {
     required bool hidden_flag = 1;
 }
@@ -120,6 +124,7 @@
         LayerStackChange  layer_stack = 3;
         SizeChange        size        = 4;
         ProjectionChange  projection  = 5;
+        DisplayFlagsChange flags      = 6;
     }
 }
 
@@ -212,4 +217,4 @@
 message Origin {
     required int32 pid = 1;
     required int32 uid = 2;
-}
\ No newline at end of file
+}
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index e65c721..d102e07 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -315,6 +315,7 @@
 DisplayState::DisplayState()
       : what(0),
         layerStack(0),
+        flags(0),
         layerStackSpaceRect(Rect::EMPTY_RECT),
         orientedDisplaySpaceRect(Rect::EMPTY_RECT),
         width(0),
@@ -325,6 +326,7 @@
     SAFE_PARCEL(output.writeStrongBinder, IInterface::asBinder(surface));
     SAFE_PARCEL(output.writeUint32, what);
     SAFE_PARCEL(output.writeUint32, layerStack);
+    SAFE_PARCEL(output.writeUint32, flags);
     SAFE_PARCEL(output.writeUint32, toRotationInt(orientation));
     SAFE_PARCEL(output.write, layerStackSpaceRect);
     SAFE_PARCEL(output.write, orientedDisplaySpaceRect);
@@ -341,6 +343,7 @@
 
     SAFE_PARCEL(input.readUint32, &what);
     SAFE_PARCEL(input.readUint32, &layerStack);
+    SAFE_PARCEL(input.readUint32, &flags);
     uint32_t tmpUint = 0;
     SAFE_PARCEL(input.readUint32, &tmpUint);
     orientation = ui::toRotation(tmpUint);
@@ -361,6 +364,10 @@
         what |= eLayerStackChanged;
         layerStack = other.layerStack;
     }
+    if (other.what & eFlagsChanged) {
+        what |= eFlagsChanged;
+        flags = other.flags;
+    }
     if (other.what & eDisplayProjectionChanged) {
         what |= eDisplayProjectionChanged;
         orientation = other.orientation;
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 6ea070ea..c255303 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1745,6 +1745,12 @@
     s.what |= DisplayState::eLayerStackChanged;
 }
 
+void SurfaceComposerClient::Transaction::setDisplayFlags(const sp<IBinder>& token, uint32_t flags) {
+    DisplayState& s(getDisplayState(token));
+    s.flags = flags;
+    s.what |= DisplayState::eFlagsChanged;
+}
+
 void SurfaceComposerClient::Transaction::setDisplayProjection(const sp<IBinder>& token,
                                                               ui::Rotation orientation,
                                                               const Rect& layerStackRect,
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index 8ac1e5d..7961f4b 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -253,7 +253,8 @@
         eSurfaceChanged = 0x01,
         eLayerStackChanged = 0x02,
         eDisplayProjectionChanged = 0x04,
-        eDisplaySizeChanged = 0x08
+        eDisplaySizeChanged = 0x08,
+        eFlagsChanged = 0x10
     };
 
     DisplayState();
@@ -263,6 +264,7 @@
     sp<IBinder> token;
     sp<IGraphicBufferProducer> surface;
     uint32_t layerStack;
+    uint32_t flags;
 
     // These states define how layers are projected onto the physical display.
     //
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index c2963b5..eb81483 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -566,6 +566,8 @@
 
         void setDisplayLayerStack(const sp<IBinder>& token, uint32_t layerStack);
 
+        void setDisplayFlags(const sp<IBinder>& token, uint32_t flags);
+
         /* setDisplayProjection() defines the projection of layer stacks
          * to a given display.
          *
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index 70ed438..266d7a3 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -91,6 +91,19 @@
     return xy;
 }
 
+vec2 applyTransformWithoutTranslation(const ui::Transform& transform, float x, float y) {
+    const vec2 transformedXy = transform.transform(x, y);
+    const vec2 transformedOrigin = transform.transform(0, 0);
+    return transformedXy - transformedOrigin;
+}
+
+bool shouldDisregardWindowTranslation(uint32_t source) {
+    // Pointer events are the only type of events that refer to absolute coordinates on the display,
+    // so we should apply the entire window transform. For other types of events, we should make
+    // sure to not apply the window translation/offset.
+    return (source & AINPUT_SOURCE_CLASS_POINTER) == 0;
+}
+
 } // namespace
 
 const char* motionClassificationToString(MotionClassification classification) {
@@ -305,6 +318,8 @@
     scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MINOR, globalScaleFactor);
     scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MAJOR, globalScaleFactor);
     scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, globalScaleFactor);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_RELATIVE_X, windowXScale);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_RELATIVE_Y, windowYScale);
 }
 
 void PointerCoords::scale(float globalScaleFactor) {
@@ -373,6 +388,15 @@
     setAxisValue(AMOTION_EVENT_AXIS_X, xy.x);
     setAxisValue(AMOTION_EVENT_AXIS_Y, xy.y);
 
+    if (BitSet64::hasBit(bits, AMOTION_EVENT_AXIS_RELATIVE_X) ||
+        BitSet64::hasBit(bits, AMOTION_EVENT_AXIS_RELATIVE_Y)) {
+        const ui::Transform rotation(transform.getOrientation());
+        const vec2 relativeXy = rotation.transform(getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X),
+                                                   getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y));
+        setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, relativeXy.x);
+        setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, relativeXy.y);
+    }
+
     if (BitSet64::hasBit(bits, AMOTION_EVENT_AXIS_ORIENTATION)) {
         const float val = getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION);
         setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, transformAngle(transform, val));
@@ -509,25 +533,48 @@
     if (axis == AMOTION_EVENT_AXIS_X || axis == AMOTION_EVENT_AXIS_Y) {
         // For compatibility, convert raw coordinates into "oriented screen space". Once app
         // developers are educated about getRaw, we can consider removing this.
-        const vec2 xy = rotatePoint(mTransform, coords->getX(), coords->getY(), mDisplayWidth,
-                                    mDisplayHeight);
+        const vec2 xy = shouldDisregardWindowTranslation(mSource)
+                ? rotatePoint(mTransform, coords->getX(), coords->getY())
+                : rotatePoint(mTransform, coords->getX(), coords->getY(), mDisplayWidth,
+                              mDisplayHeight);
         static_assert(AMOTION_EVENT_AXIS_X == 0 && AMOTION_EVENT_AXIS_Y == 1);
         return xy[axis];
     }
 
+    if (axis == AMOTION_EVENT_AXIS_RELATIVE_X || axis == AMOTION_EVENT_AXIS_RELATIVE_Y) {
+        // For compatibility, since we convert raw coordinates into "oriented screen space", we
+        // need to convert the relative axes into the same orientation for consistency.
+        const vec2 relativeXy =
+                rotatePoint(mTransform, coords->getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X),
+                            coords->getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y));
+        return axis == AMOTION_EVENT_AXIS_RELATIVE_X ? relativeXy.x : relativeXy.y;
+    }
+
     return coords->getAxisValue(axis);
 }
 
 float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex,
-        size_t historicalIndex) const {
+                                          size_t historicalIndex) const {
     const PointerCoords* coords = getHistoricalRawPointerCoords(pointerIndex, historicalIndex);
 
     if (axis == AMOTION_EVENT_AXIS_X || axis == AMOTION_EVENT_AXIS_Y) {
-        const vec2 xy = mTransform.transform(coords->getXYValue());
+        const vec2 xy = shouldDisregardWindowTranslation(mSource)
+                ? applyTransformWithoutTranslation(mTransform, coords->getX(), coords->getY())
+                : mTransform.transform(coords->getXYValue());
         static_assert(AMOTION_EVENT_AXIS_X == 0 && AMOTION_EVENT_AXIS_Y == 1);
         return xy[axis];
     }
 
+    if (axis == AMOTION_EVENT_AXIS_RELATIVE_X || axis == AMOTION_EVENT_AXIS_RELATIVE_Y) {
+        const vec2 relativeXy =
+                applyTransformWithoutTranslation(mTransform,
+                                                 coords->getAxisValue(
+                                                         AMOTION_EVENT_AXIS_RELATIVE_X),
+                                                 coords->getAxisValue(
+                                                         AMOTION_EVENT_AXIS_RELATIVE_Y));
+        return axis == AMOTION_EVENT_AXIS_RELATIVE_X ? relativeXy.x : relativeXy.y;
+    }
+
     return coords->getAxisValue(axis);
 }
 
@@ -583,6 +630,13 @@
     // Apply the transformation to all samples.
     std::for_each(mSamplePointerCoords.begin(), mSamplePointerCoords.end(),
                   [&transform](PointerCoords& c) { c.transform(transform); });
+
+    if (mRawXCursorPosition != AMOTION_EVENT_INVALID_CURSOR_POSITION &&
+        mRawYCursorPosition != AMOTION_EVENT_INVALID_CURSOR_POSITION) {
+        const vec2 cursor = transform.transform(mRawXCursorPosition, mRawYCursorPosition);
+        mRawXCursorPosition = cursor.x;
+        mRawYCursorPosition = cursor.y;
+    }
 }
 
 #ifdef __linux__
diff --git a/libs/input/tests/InputEvent_test.cpp b/libs/input/tests/InputEvent_test.cpp
index 32b72ba..cfb5986 100644
--- a/libs/input/tests/InputEvent_test.cpp
+++ b/libs/input/tests/InputEvent_test.cpp
@@ -588,7 +588,7 @@
     }
     MotionEvent event;
     ui::Transform identityTransform;
-    event.initialize(InputEvent::nextId(), 0 /*deviceId*/, AINPUT_SOURCE_UNKNOWN, DISPLAY_ID,
+    event.initialize(InputEvent::nextId(), 0 /*deviceId*/, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID,
                      INVALID_HMAC, AMOTION_EVENT_ACTION_MOVE, 0 /*actionButton*/, 0 /*flags*/,
                      AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE, 0 /*buttonState*/,
                      MotionClassification::NONE, identityTransform, 0 /*xPrecision*/,
@@ -636,13 +636,16 @@
     ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
 }
 
-MotionEvent createTouchDownEvent(int x, int y, ui::Transform transform) {
+MotionEvent createTouchDownEvent(float x, float y, float dx, float dy,
+                                 const ui::Transform& transform) {
     std::vector<PointerProperties> pointerProperties;
     pointerProperties.push_back(PointerProperties{/* id */ 0, AMOTION_EVENT_TOOL_TYPE_FINGER});
     std::vector<PointerCoords> pointerCoords;
     pointerCoords.emplace_back().clear();
     pointerCoords.back().setAxisValue(AMOTION_EVENT_AXIS_X, x);
     pointerCoords.back().setAxisValue(AMOTION_EVENT_AXIS_Y, y);
+    pointerCoords.back().setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, dx);
+    pointerCoords.back().setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, dy);
     nsecs_t eventTime = systemTime(SYSTEM_TIME_MONOTONIC);
     MotionEvent event;
     event.initialize(InputEvent::nextId(), /* deviceId */ 1, AINPUT_SOURCE_TOUCHSCREEN,
@@ -661,26 +664,56 @@
     ui::Transform identity;
     ui::Transform xform(ui::Transform::ROT_90, 800, 400);
     xform.set(xform.tx() + 20, xform.ty() + 40);
-    MotionEvent event = createTouchDownEvent(60, 100, xform);
+    MotionEvent event = createTouchDownEvent(60, 100, 42, 96, xform);
     ASSERT_EQ(700, event.getRawX(0));
     ASSERT_EQ(60, event.getRawY(0));
     ASSERT_NE(event.getRawX(0), event.getX(0));
     ASSERT_NE(event.getRawY(0), event.getY(0));
+    // Relative values should be rotated but not translated.
+    ASSERT_EQ(-96, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0));
+    ASSERT_EQ(42, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0));
 
-    MotionEvent changedEvent = createTouchDownEvent(60, 100, identity);
+    MotionEvent changedEvent = createTouchDownEvent(60, 100, 42, 96, identity);
     const std::array<float, 9> rowMajor{xform[0][0], xform[1][0], xform[2][0],
                                         xform[0][1], xform[1][1], xform[2][1],
                                         xform[0][2], xform[1][2], xform[2][2]};
     changedEvent.applyTransform(rowMajor);
 
     // transformContent effectively rotates the raw coordinates, so those should now include
-    // both rotation AND offset
+    // both rotation AND offset.
     ASSERT_EQ(720, changedEvent.getRawX(0));
     ASSERT_EQ(100, changedEvent.getRawY(0));
+    // Relative values should be rotated but not translated.
+    ASSERT_EQ(-96, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0));
+    ASSERT_EQ(42, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0));
 
-    // The transformed output should be the same then
+    // The transformed output should be the same then.
     ASSERT_NEAR(event.getX(0), changedEvent.getX(0), 0.001);
     ASSERT_NEAR(event.getY(0), changedEvent.getY(0), 0.001);
+    ASSERT_NEAR(event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0),
+                changedEvent.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0), 0.001);
+    ASSERT_NEAR(event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0),
+                changedEvent.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0), 0.001);
+}
+
+TEST_F(MotionEventTest, NonPointerSourcesAreNotTranslated) {
+    constexpr static auto NON_POINTER_SOURCES = {AINPUT_SOURCE_TRACKBALL,
+                                                 AINPUT_SOURCE_MOUSE_RELATIVE,
+                                                 AINPUT_SOURCE_JOYSTICK};
+    for (uint32_t source : NON_POINTER_SOURCES) {
+        // Create a rotate-90 transform with an offset (like a window which isn't fullscreen).
+        ui::Transform xform(ui::Transform::ROT_90, 800, 400);
+        xform.set(xform.tx() + 20, xform.ty() + 40);
+        MotionEvent event = createTouchDownEvent(60, 100, 42, 96, xform);
+        event.setSource(source);
+
+        // Since this event comes from a non-pointer source, it should include rotation but not
+        // translation/offset.
+        ASSERT_EQ(-100, event.getX(0));
+        ASSERT_EQ(60, event.getY(0));
+        ASSERT_EQ(event.getRawX(0), event.getX(0));
+        ASSERT_EQ(event.getRawY(0), event.getY(0));
+    }
 }
 
 TEST_F(MotionEventTest, RawCompatTransform) {
@@ -688,11 +721,14 @@
         // Make sure raw is raw regardless of transform translation.
         ui::Transform xform;
         xform.set(20, 40);
-        MotionEvent event = createTouchDownEvent(60, 100, xform);
+        MotionEvent event = createTouchDownEvent(60, 100, 42, 96, xform);
         ASSERT_EQ(60, event.getRawX(0));
         ASSERT_EQ(100, event.getRawY(0));
         ASSERT_NE(event.getRawX(0), event.getX(0));
         ASSERT_NE(event.getRawY(0), event.getY(0));
+        // Relative values should not be modified.
+        ASSERT_EQ(42, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0));
+        ASSERT_EQ(96, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0));
     }
 
     // Next check that getRaw contains rotation (for compatibility) but otherwise is still
@@ -701,29 +737,38 @@
         // Create a rotate-90 transform with an offset (like a window which isn't fullscreen).
         ui::Transform xform(ui::Transform::ROT_90, 800, 400);
         xform.set(xform.tx() + 20, xform.ty() + 40);
-        MotionEvent event = createTouchDownEvent(60, 100, xform);
+        MotionEvent event = createTouchDownEvent(60, 100, 42, 96, xform);
         ASSERT_EQ(700, event.getRawX(0));
         ASSERT_EQ(60, event.getRawY(0));
         ASSERT_NE(event.getRawX(0), event.getX(0));
         ASSERT_NE(event.getRawY(0), event.getY(0));
+        // Relative values should be rotated but not translated.
+        ASSERT_EQ(-96, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0));
+        ASSERT_EQ(42, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0));
     }
 
     {
         // Same as above, but check rotate-180.
         ui::Transform xform(ui::Transform::ROT_180, 400, 800);
         xform.set(xform.tx() + 20, xform.ty() + 40);
-        MotionEvent event = createTouchDownEvent(60, 100, xform);
+        MotionEvent event = createTouchDownEvent(60, 100, 42, 96, xform);
         ASSERT_EQ(340, event.getRawX(0));
         ASSERT_EQ(700, event.getRawY(0));
+        // Relative values should be rotated but not translated.
+        ASSERT_EQ(-42, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0));
+        ASSERT_EQ(-96, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0));
     }
 
     {
         // Same as above, but check rotate-270.
         ui::Transform xform(ui::Transform::ROT_270, 800, 400);
         xform.set(xform.tx() + 20, xform.ty() + 40);
-        MotionEvent event = createTouchDownEvent(60, 100, xform);
+        MotionEvent event = createTouchDownEvent(60, 100, 42, 96, xform);
         ASSERT_EQ(100, event.getRawX(0));
         ASSERT_EQ(340, event.getRawY(0));
+        // Relative values should be rotated but not translated.
+        ASSERT_EQ(96, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0));
+        ASSERT_EQ(-42, event.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0));
     }
 }
 
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index 6612a93..24d186c 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -73,6 +73,7 @@
         "libui",
         "lib-platform-compat-native-api",
         "server_configurable_flags",
+        "InputFlingerProperties",
     ],
     static_libs: [
         "libattestation",
diff --git a/services/inputflinger/dispatcher/Android.bp b/services/inputflinger/dispatcher/Android.bp
index 1b3888b..7c7a16b 100644
--- a/services/inputflinger/dispatcher/Android.bp
+++ b/services/inputflinger/dispatcher/Android.bp
@@ -67,6 +67,7 @@
         "libutils",
         "lib-platform-compat-native-api",
         "server_configurable_flags",
+        "InputFlingerProperties",
     ],
     static_libs: [
         "libattestation",
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index a46893b..15c810d 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -47,6 +47,7 @@
 // Log debug messages about hover events.
 #define DEBUG_HOVER 0
 
+#include <InputFlingerProperties.sysprop.h>
 #include <android-base/chrono_utils.h>
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
@@ -93,7 +94,8 @@
 // coordinates and SurfaceFlinger includes the display rotation in the input window transforms.
 static bool isPerWindowInputRotationEnabled() {
     static const bool PER_WINDOW_INPUT_ROTATION =
-            base::GetBoolProperty("persist.debug.per_window_input_rotation", false);
+            sysprop::InputFlingerProperties::per_window_input_rotation().value_or(false);
+
     return PER_WINDOW_INPUT_ROTATION;
 }
 
@@ -319,11 +321,11 @@
                                                           int32_t inputTargetFlags) {
     if (eventEntry->type == EventEntry::Type::MOTION) {
         const MotionEntry& motionEntry = static_cast<const MotionEntry&>(*eventEntry);
-        if ((motionEntry.source & AINPUT_SOURCE_CLASS_POINTER) == 0) {
+        if ((motionEntry.source & AINPUT_SOURCE_CLASS_JOYSTICK) ||
+            (motionEntry.source & AINPUT_SOURCE_CLASS_POSITION)) {
             const ui::Transform identityTransform;
-            // Use identity transform for events that are not pointer events because their axes
-            // values do not represent on-screen coordinates, so they should not have any window
-            // transformations applied to them.
+            // Use identity transform for joystick and position-based (touchpad) events because they
+            // don't depend on the window transform.
             return std::make_unique<DispatchEntry>(eventEntry, inputTargetFlags, identityTransform,
                                                    1.0f /*globalScaleFactor*/,
                                                    inputTarget.displaySize);
diff --git a/services/inputflinger/reader/Android.bp b/services/inputflinger/reader/Android.bp
index 7db32e3..ee7b392 100644
--- a/services/inputflinger/reader/Android.bp
+++ b/services/inputflinger/reader/Android.bp
@@ -71,6 +71,7 @@
         "libstatslog",
         "libui",
         "libutils",
+        "InputFlingerProperties",
     ],
     static_libs: [
         "libc++fs",
diff --git a/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h b/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h
index da0fea4..4c5ff63 100644
--- a/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h
+++ b/services/inputflinger/reader/mapper/TouchCursorInputMapperCommon.h
@@ -17,7 +17,7 @@
 #ifndef _UI_INPUTREADER_TOUCH_CURSOR_INPUT_MAPPER_COMMON_H
 #define _UI_INPUTREADER_TOUCH_CURSOR_INPUT_MAPPER_COMMON_H
 
-#include <android-base/properties.h>
+#include <InputFlingerProperties.sysprop.h>
 #include <input/DisplayViewport.h>
 #include <stdint.h>
 
@@ -34,7 +34,7 @@
 // un-rotated coordinate space.
 static bool isPerWindowInputRotationEnabled() {
     static const bool PER_WINDOW_INPUT_ROTATION =
-            base::GetBoolProperty("persist.debug.per_window_input_rotation", false);
+            sysprop::InputFlingerProperties::per_window_input_rotation().value_or(false);
     return PER_WINDOW_INPUT_ROTATION;
 }
 
diff --git a/services/inputflinger/sysprop/Android.bp b/services/inputflinger/sysprop/Android.bp
new file mode 100644
index 0000000..b9d65ee
--- /dev/null
+++ b/services/inputflinger/sysprop/Android.bp
@@ -0,0 +1,15 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
+sysprop_library {
+    name: "InputFlingerProperties",
+    srcs: ["*.sysprop"],
+    api_packages: ["android.sysprop"],
+    property_owner: "Platform",
+}
diff --git a/services/inputflinger/sysprop/InputFlingerProperties.sysprop b/services/inputflinger/sysprop/InputFlingerProperties.sysprop
new file mode 100644
index 0000000..1c7e724
--- /dev/null
+++ b/services/inputflinger/sysprop/InputFlingerProperties.sysprop
@@ -0,0 +1,27 @@
+# Copyright (C) 2021 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the License);
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an AS IS BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+module: "android.sysprop.InputFlingerProperties"
+owner: Platform
+
+# When per-window-input-rotation is enabled, InputReader works in the un-rotated
+# display coordinate space, and the display rotation is encoded as part of the
+# input window transform that is sent from SurfaceFlinger to InputDispatcher.
+prop {
+    api_name: "per_window_input_rotation"
+    type: Boolean
+    scope: Internal
+    access: ReadWrite
+    prop_name: "persist.debug.per_window_input_rotation"
+}
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 5fd2dd3..cb876c9 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -2432,7 +2432,7 @@
     EXPECT_EQ(motionArgs.buttonState, verifiedMotion.buttonState);
 }
 
-TEST_F(InputDispatcherTest, NonPointerMotionEvent_NotTransformed) {
+TEST_F(InputDispatcherTest, NonPointerMotionEvent_JoystickAndTouchpadNotTransformed) {
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window =
             new FakeWindowHandle(application, mDispatcher, "Test window", ADISPLAY_ID_DEFAULT);
@@ -2452,20 +2452,19 @@
     // Second, we consume focus event if it is right or wrong according to onFocusChangedLocked.
     window->consumeFocusEvent(true);
 
-    constexpr const std::array nonPointerSources = {AINPUT_SOURCE_TRACKBALL,
-                                                    AINPUT_SOURCE_MOUSE_RELATIVE,
-                                                    AINPUT_SOURCE_JOYSTICK};
-    for (const int source : nonPointerSources) {
-        // Notify motion with a non-pointer source.
-        NotifyMotionArgs motionArgs =
-                generateMotionArgs(AMOTION_EVENT_ACTION_MOVE, source, ADISPLAY_ID_DEFAULT);
+    constexpr const std::array nonTransformedSources = {std::pair(AINPUT_SOURCE_TOUCHPAD,
+                                                                  AMOTION_EVENT_ACTION_DOWN),
+                                                        std::pair(AINPUT_SOURCE_JOYSTICK,
+                                                                  AMOTION_EVENT_ACTION_MOVE)};
+    for (const auto& [source, action] : nonTransformedSources) {
+        const NotifyMotionArgs motionArgs = generateMotionArgs(action, source, ADISPLAY_ID_DEFAULT);
         mDispatcher->notifyMotion(&motionArgs);
 
         MotionEvent* event = window->consumeMotion();
         ASSERT_NE(event, nullptr);
 
         const MotionEvent& motionEvent = *event;
-        EXPECT_EQ(AMOTION_EVENT_ACTION_MOVE, motionEvent.getAction());
+        EXPECT_EQ(action, motionEvent.getAction());
         EXPECT_EQ(motionArgs.pointerCount, motionEvent.getPointerCount());
 
         float expectedX = motionArgs.pointerCoords[0].getX();
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index ca4b6ab..c391901 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -220,6 +220,10 @@
     mCompositionDisplay->setLayerStackFilter(stack, isPrimary());
 }
 
+void DisplayDevice::setFlags(uint32_t flags) {
+    mFlags = flags;
+}
+
 void DisplayDevice::setDisplaySize(int width, int height) {
     LOG_FATAL_IF(!isVirtual(), "Changing the display size is supported only for virtual displays.");
     mCompositionDisplay->setDisplaySize(ui::Size(width, height));
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 7e4d923..70dcc1e 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -64,6 +64,7 @@
 public:
     constexpr static float sDefaultMinLumiance = 0.0;
     constexpr static float sDefaultMaxLumiance = 500.0;
+    enum { eReceivesInput = 0x01 };
 
     explicit DisplayDevice(DisplayDeviceCreationArgs& args);
 
@@ -90,6 +91,7 @@
     void setLayerStack(ui::LayerStack);
     void setDisplaySize(int width, int height);
     void setProjection(ui::Rotation orientation, Rect viewport, Rect frame);
+    void setFlags(uint32_t flags);
 
     ui::Rotation getPhysicalOrientation() const { return mPhysicalOrientation; }
     ui::Rotation getOrientation() const { return mOrientation; }
@@ -102,6 +104,7 @@
     const Rect& getOrientedDisplaySpaceRect() const;
     bool needsFiltering() const;
     ui::LayerStack getLayerStack() const;
+    bool receivesInput() const { return mFlags & eReceivesInput; }
 
     DisplayId getId() const;
 
@@ -227,6 +230,8 @@
     // TODO(b/74619554): Remove special cases for primary display.
     const bool mIsPrimary;
 
+    uint32_t mFlags = 0;
+
     std::optional<DeviceProductInfo> mDeviceProductInfo;
 
     std::vector<ui::Hdr> mOverrideHdrTypes;
@@ -252,6 +257,7 @@
     std::optional<Physical> physical;
     sp<IGraphicBufferProducer> surface;
     ui::LayerStack layerStack = ui::NO_LAYER_STACK;
+    uint32_t flags = 0;
     Rect layerStackSpaceRect;
     Rect orientedDisplaySpaceRect;
     ui::Rotation orientation = ui::ROTATION_0;
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index e2f3ebb..84c0c7e 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2851,6 +2851,9 @@
         if (currentState.layerStack != drawingState.layerStack) {
             display->setLayerStack(currentState.layerStack);
         }
+        if (currentState.flags != drawingState.flags) {
+            display->setFlags(currentState.flags);
+        }
         if ((currentState.orientation != drawingState.orientation) ||
             (currentState.layerStackSpaceRect != drawingState.layerStackSpaceRect) ||
             (currentState.orientedDisplaySpaceRect != drawingState.orientedDisplaySpaceRect)) {
@@ -3059,18 +3062,9 @@
 
     mDrawingState.traverseInReverseZOrder([&](Layer* layer) {
         if (!layer->needsInputInfo()) return;
-        sp<DisplayDevice> display;
-        if (enablePerWindowInputRotation()) {
-            for (const auto& pair : ON_MAIN_THREAD(mDisplays)) {
-                const auto& displayDevice = pair.second;
-                if (!displayDevice->getCompositionDisplay()
-                             ->belongsInOutput(layer->getLayerStack(),
-                                               layer->getPrimaryDisplayOnly())) {
-                    continue;
-                }
-                display = displayDevice;
-            }
-        }
+        sp<DisplayDevice> display = enablePerWindowInputRotation()
+                ? ON_MAIN_THREAD(getDisplayWithInputByLayer(layer))
+                : nullptr;
         // When calculating the screen bounds we ignore the transparent region since it may
         // result in an unwanted offset.
         inputInfos.push_back(layer->fillInputInfo(display));
@@ -3825,6 +3819,12 @@
             flags |= eDisplayTransactionNeeded;
         }
     }
+    if (what & DisplayState::eFlagsChanged) {
+        if (state.flags != s.flags) {
+            state.flags = s.flags;
+            flags |= eDisplayTransactionNeeded;
+        }
+    }
     if (what & DisplayState::eDisplayProjectionChanged) {
         if (state.orientation != s.orientation) {
             state.orientation = s.orientation;
@@ -4492,6 +4492,26 @@
     static_cast<void>(schedule([this]() MAIN_THREAD { onInitializeDisplays(); }));
 }
 
+sp<DisplayDevice> SurfaceFlinger::getDisplayWithInputByLayer(Layer* layer) const {
+    sp<DisplayDevice> display;
+    for (const auto& pair : mDisplays) {
+        const auto& displayDevice = pair.second;
+        if (!displayDevice->receivesInput() ||
+            !displayDevice->getCompositionDisplay()
+                     ->belongsInOutput(layer->getLayerStack(), layer->getPrimaryDisplayOnly())) {
+            continue;
+        }
+        // Don't return immediately so that we can log duplicates.
+        if (display) {
+            ALOGE("Multiple display devices claim to accept input for the same layerstack: %d",
+                  layer->getLayerStack());
+            continue;
+        }
+        display = displayDevice;
+    }
+    return display;
+}
+
 void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode) {
     if (display->isVirtual()) {
         ALOGE("%s: Invalid operation on virtual display", __FUNCTION__);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index f33df86..ecb6907 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -984,6 +984,8 @@
     // region of all screens presenting this layer stack.
     void invalidateLayerStack(const sp<const Layer>& layer, const Region& dirty);
 
+    sp<DisplayDevice> getDisplayWithInputByLayer(Layer* layer) const REQUIRES(mStateLock);
+
     /*
      * H/W composer
      */
diff --git a/services/surfaceflinger/SurfaceInterceptor.cpp b/services/surfaceflinger/SurfaceInterceptor.cpp
index 8ca241e..2084bb6 100644
--- a/services/surfaceflinger/SurfaceInterceptor.cpp
+++ b/services/surfaceflinger/SurfaceInterceptor.cpp
@@ -160,6 +160,7 @@
 
     addDisplaySurfaceLocked(transaction, display.sequenceId, display.surface);
     addDisplayLayerStackLocked(transaction, display.sequenceId, display.layerStack);
+    addDisplayFlagsLocked(transaction, display.sequenceId, display.flags);
     addDisplaySizeLocked(transaction, display.sequenceId, display.width, display.height);
     addDisplayProjectionLocked(transaction, display.sequenceId, toRotationInt(display.orientation),
                                display.layerStackSpaceRect, display.orientedDisplaySpaceRect);
@@ -474,6 +475,9 @@
     if (state.what & DisplayState::eLayerStackChanged) {
         addDisplayLayerStackLocked(transaction, sequenceId, state.layerStack);
     }
+    if (state.what & DisplayState::eFlagsChanged) {
+        addDisplayFlagsLocked(transaction, sequenceId, state.flags);
+    }
     if (state.what & DisplayState::eDisplaySizeChanged) {
         addDisplaySizeLocked(transaction, sequenceId, state.width, state.height);
     }
@@ -565,6 +569,13 @@
     layerStackChange->set_layer_stack(layerStack);
 }
 
+void SurfaceInterceptor::addDisplayFlagsLocked(Transaction* transaction, int32_t sequenceId,
+                                               uint32_t flags) {
+    DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
+    DisplayFlagsChange* flagsChange(dispChange->mutable_flags());
+    flagsChange->set_flags(flags);
+}
+
 void SurfaceInterceptor::addDisplaySizeLocked(Transaction* transaction, int32_t sequenceId,
         uint32_t w, uint32_t h)
 {
diff --git a/services/surfaceflinger/SurfaceInterceptor.h b/services/surfaceflinger/SurfaceInterceptor.h
index 30aca83..e498e7d 100644
--- a/services/surfaceflinger/SurfaceInterceptor.h
+++ b/services/surfaceflinger/SurfaceInterceptor.h
@@ -184,6 +184,7 @@
             const sp<const IGraphicBufferProducer>& surface);
     void addDisplayLayerStackLocked(Transaction* transaction, int32_t sequenceId,
             uint32_t layerStack);
+    void addDisplayFlagsLocked(Transaction* transaction, int32_t sequenceId, uint32_t flags);
     void addDisplaySizeLocked(Transaction* transaction, int32_t sequenceId, uint32_t w,
             uint32_t h);
     void addDisplayProjectionLocked(Transaction* transaction, int32_t sequenceId,
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetDisplayStateTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetDisplayStateTest.cpp
index be01984..fc40818 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetDisplayStateTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetDisplayStateTest.cpp
@@ -224,6 +224,74 @@
     EXPECT_EQ(456u, display.getCurrentDisplayState().layerStack);
 }
 
+TEST_F(SetDisplayStateLockedTest, setDisplayStateLockedDoesNothingIfFlagsNotChanged) {
+    using Case = SimplePrimaryDisplayCase;
+
+    // --------------------------------------------------------------------
+    // Preconditions
+
+    // A display is set up
+    auto display = Case::Display::makeFakeExistingDisplayInjector(this);
+    display.inject();
+
+    // The display has flags set
+    display.mutableCurrentDisplayState().flags = 1u;
+
+    // The incoming request sets a different layer stack
+    DisplayState state;
+    state.what = DisplayState::eFlagsChanged;
+    state.token = display.token();
+    state.flags = 1u;
+
+    // --------------------------------------------------------------------
+    // Invocation
+
+    uint32_t flags = mFlinger.setDisplayStateLocked(state);
+
+    // --------------------------------------------------------------------
+    // Postconditions
+
+    // The returned flags are empty
+    EXPECT_EQ(0u, flags);
+
+    // The desired display state has been set to the new value.
+    EXPECT_EQ(1u, display.getCurrentDisplayState().flags);
+}
+
+TEST_F(SetDisplayStateLockedTest, setDisplayStateLockedRequestsUpdateIfFlagsChanged) {
+    using Case = SimplePrimaryDisplayCase;
+
+    // --------------------------------------------------------------------
+    // Preconditions
+
+    // A display is set up
+    auto display = Case::Display::makeFakeExistingDisplayInjector(this);
+    display.inject();
+
+    // The display has a layer stack set
+    display.mutableCurrentDisplayState().flags = 0u;
+
+    // The incoming request sets a different layer stack
+    DisplayState state;
+    state.what = DisplayState::eFlagsChanged;
+    state.token = display.token();
+    state.flags = 1u;
+
+    // --------------------------------------------------------------------
+    // Invocation
+
+    uint32_t flags = mFlinger.setDisplayStateLocked(state);
+
+    // --------------------------------------------------------------------
+    // Postconditions
+
+    // The returned flags indicate a transaction is needed
+    EXPECT_EQ(eDisplayTransactionNeeded, flags);
+
+    // The desired display state has been set to the new value.
+    EXPECT_EQ(1u, display.getCurrentDisplayState().flags);
+}
+
 TEST_F(SetDisplayStateLockedTest, setDisplayStateLockedDoesNothingIfProjectionDidNotChange) {
     using Case = SimplePrimaryDisplayCase;
     constexpr ui::Rotation initialOrientation = ui::ROTATION_180;