Merge "SF: merge BufferLayer and BufferStateLayer"
diff --git a/libs/binder/RpcState.cpp b/libs/binder/RpcState.cpp
index 0ae75cd..633fea9 100644
--- a/libs/binder/RpcState.cpp
+++ b/libs/binder/RpcState.cpp
@@ -258,7 +258,9 @@
     mTerminated = true;
     for (auto& [address, node] : mNodeForAddress) {
         sp<IBinder> binder = node.binder.promote();
-        LOG_ALWAYS_FATAL_IF(binder == nullptr, "Binder %p expected to be owned.", binder.get());
+        LOG_ALWAYS_FATAL_IF(binder == nullptr,
+                            "Binder expected to be owned with address: %" PRIu64 " %s", address,
+                            node.toString().c_str());
 
         if (node.sentRef != nullptr) {
             tempHoldBinder.push_back(node.sentRef);
@@ -275,29 +277,32 @@
     ALOGE("DUMP OF RpcState %p", this);
     ALOGE("DUMP OF RpcState (%zu nodes)", mNodeForAddress.size());
     for (const auto& [address, node] : mNodeForAddress) {
-        sp<IBinder> binder = node.binder.promote();
-
-        const char* desc;
-        if (binder) {
-            if (binder->remoteBinder()) {
-                if (binder->remoteBinder()->isRpcBinder()) {
-                    desc = "(rpc binder proxy)";
-                } else {
-                    desc = "(binder proxy)";
-                }
-            } else {
-                desc = "(local binder)";
-            }
-        } else {
-            desc = "(null)";
-        }
-
-        ALOGE("- BINDER NODE: %p times sent:%zu times recd: %zu a: %" PRIu64 " type: %s",
-              node.binder.unsafe_get(), node.timesSent, node.timesRecd, address, desc);
+        ALOGE("- address: %" PRIu64 " %s", address, node.toString().c_str());
     }
     ALOGE("END DUMP OF RpcState");
 }
 
+std::string RpcState::BinderNode::toString() const {
+    sp<IBinder> strongBinder = this->binder.promote();
+
+    const char* desc;
+    if (strongBinder) {
+        if (strongBinder->remoteBinder()) {
+            if (strongBinder->remoteBinder()->isRpcBinder()) {
+                desc = "(rpc binder proxy)";
+            } else {
+                desc = "(binder proxy)";
+            }
+        } else {
+            desc = "(local binder)";
+        }
+    } else {
+        desc = "(not promotable)";
+    }
+
+    return StringPrintf("node{%p times sent: %zu times recd: %zu type: %s}",
+                        this->binder.unsafe_get(), this->timesSent, this->timesRecd, desc);
+}
 
 RpcState::CommandData::CommandData(size_t size) : mSize(size) {
     // The maximum size for regular binder is 1MB for all concurrent
@@ -643,14 +648,21 @@
     Span<const uint32_t> objectTableSpan;
     if (session->getProtocolVersion().value() >=
         RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE) {
-        Span<const uint8_t> objectTableBytes = parcelSpan.splitOff(rpcReply.parcelDataSize);
+        std::optional<Span<const uint8_t>> objectTableBytes =
+                parcelSpan.splitOff(rpcReply.parcelDataSize);
+        if (!objectTableBytes.has_value()) {
+            ALOGE("Parcel size larger than available bytes: %" PRId32 " vs %zu. Terminating!",
+                  rpcReply.parcelDataSize, parcelSpan.byteSize());
+            (void)session->shutdownAndWait(false);
+            return BAD_VALUE;
+        }
         std::optional<Span<const uint32_t>> maybeSpan =
-                objectTableBytes.reinterpret<const uint32_t>();
+                objectTableBytes->reinterpret<const uint32_t>();
         if (!maybeSpan.has_value()) {
             ALOGE("Bad object table size inferred from RpcWireReply. Saw bodySize=%" PRId32
                   " sizeofHeader=%zu parcelSize=%" PRId32 " objectTableBytesSize=%zu. Terminating!",
                   command.bodySize, rpcReplyWireSize, rpcReply.parcelDataSize,
-                  objectTableBytes.size);
+                  objectTableBytes->size);
             return BAD_VALUE;
         }
         objectTableSpan = *maybeSpan;
@@ -893,15 +905,22 @@
         Span<const uint32_t> objectTableSpan;
         if (session->getProtocolVersion().value() >
             RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE) {
-            Span<const uint8_t> objectTableBytes = parcelSpan.splitOff(transaction->parcelDataSize);
+            std::optional<Span<const uint8_t>> objectTableBytes =
+                    parcelSpan.splitOff(transaction->parcelDataSize);
+            if (!objectTableBytes.has_value()) {
+                ALOGE("Parcel size (%" PRId32 ") greater than available bytes (%zu). Terminating!",
+                      transaction->parcelDataSize, parcelSpan.byteSize());
+                (void)session->shutdownAndWait(false);
+                return BAD_VALUE;
+            }
             std::optional<Span<const uint32_t>> maybeSpan =
-                    objectTableBytes.reinterpret<const uint32_t>();
+                    objectTableBytes->reinterpret<const uint32_t>();
             if (!maybeSpan.has_value()) {
                 ALOGE("Bad object table size inferred from RpcWireTransaction. Saw bodySize=%zu "
                       "sizeofHeader=%zu parcelSize=%" PRId32
                       " objectTableBytesSize=%zu. Terminating!",
                       transactionData.size(), sizeof(RpcWireTransaction),
-                      transaction->parcelDataSize, objectTableBytes.size);
+                      transaction->parcelDataSize, objectTableBytes->size);
                 return BAD_VALUE;
             }
             objectTableSpan = *maybeSpan;
diff --git a/libs/binder/RpcState.h b/libs/binder/RpcState.h
index 6fb2e4a..892ecd6 100644
--- a/libs/binder/RpcState.h
+++ b/libs/binder/RpcState.h
@@ -258,6 +258,8 @@
         //
 
         // (no additional data specific to remote binders)
+
+        std::string toString() const;
     };
 
     // checks if there is any reference left to a node and erases it. If erase
diff --git a/libs/binder/Utils.h b/libs/binder/Utils.h
index 7c6d6f1..e04199c 100644
--- a/libs/binder/Utils.h
+++ b/libs/binder/Utils.h
@@ -48,9 +48,11 @@
     // Truncates `this` to a length of `offset` and returns a span with the
     // remainder.
     //
-    // Aborts if offset > size.
-    Span<T> splitOff(size_t offset) {
-        LOG_ALWAYS_FATAL_IF(offset > size);
+    // `std::nullopt` iff offset > size.
+    std::optional<Span<T>> splitOff(size_t offset) {
+        if (offset > size) {
+            return std::nullopt;
+        }
         Span<T> rest = {data + offset, size - offset};
         size = offset;
         return rest;
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index 4ed3309..e72f39c 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -1310,7 +1310,7 @@
      * not exceed 16 (15 Max + pool thread).
      */
     std::vector<std::thread> ts;
-    for (size_t i = 0; i < kKernelThreads - 1; i++) {
+    for (size_t i = 0; i < kKernelThreads; i++) {
         ts.push_back(std::thread([&] {
             Parcel local_reply;
             EXPECT_THAT(server->transact(BINDER_LIB_TEST_LOCK_UNLOCK, data, &local_reply),
@@ -1318,7 +1318,7 @@
         }));
     }
 
-    data.writeInt32(1);
+    data.writeInt32(100);
     // Give a chance for all threads to be used
     EXPECT_THAT(server->transact(BINDER_LIB_TEST_UNLOCK_AFTER_MS, data, &reply), NO_ERROR);
 
@@ -1329,8 +1329,7 @@
     EXPECT_THAT(server->transact(BINDER_LIB_TEST_GET_MAX_THREAD_COUNT, data, &reply),
                 StatusEq(NO_ERROR));
     replyi = reply.readInt32();
-    // No more than 16 threads should exist.
-    EXPECT_TRUE(replyi == kKernelThreads || replyi == kKernelThreads + 1);
+    EXPECT_EQ(replyi, kKernelThreads + 1);
 }
 
 size_t epochMillis() {
diff --git a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
index ec5841c..c9ea068 100644
--- a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
+++ b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
@@ -112,6 +112,8 @@
 
     void notifyDropWindow(const sp<IBinder>&, float x, float y) override {}
 
+    bool isPerDisplayTouchModeEnabled() override { return false; }
+
     InputDispatcherConfiguration mConfig;
 };
 
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 625c367..bd55216 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -553,7 +553,8 @@
         mWindowTokenWithPointerCapture(nullptr),
         mStaleEventTimeout(staleEventTimeout),
         mLatencyAggregator(),
-        mLatencyTracker(&mLatencyAggregator) {
+        mLatencyTracker(&mLatencyAggregator),
+        kPerDisplayTouchModeEnabled(mPolicy->isPerDisplayTouchModeEnabled()) {
     mLooper = new Looper(false);
     mReporter = createInputReporter();
 
@@ -4987,8 +4988,8 @@
     mLooper->wake();
 }
 
-bool InputDispatcher::setInTouchMode(bool inTouchMode, int32_t pid, int32_t uid,
-                                     bool hasPermission) {
+bool InputDispatcher::setInTouchMode(bool inTouchMode, int32_t pid, int32_t uid, bool hasPermission,
+                                     int32_t displayId) {
     bool needWake = false;
     {
         std::scoped_lock lock(mLock);
@@ -4997,8 +4998,9 @@
         }
         if (DEBUG_TOUCH_MODE) {
             ALOGD("Request to change touch mode from %s to %s (calling pid=%d, uid=%d, "
-                  "hasPermission=%s)",
-                  toString(mInTouchMode), toString(inTouchMode), pid, uid, toString(hasPermission));
+                  "hasPermission=%s, target displayId=%d, perDisplayTouchModeEnabled=%s)",
+                  toString(mInTouchMode), toString(inTouchMode), pid, uid, toString(hasPermission),
+                  displayId, toString(kPerDisplayTouchModeEnabled));
         }
         if (!hasPermission) {
             if (!focusedWindowIsOwnedByLocked(pid, uid) &&
@@ -5010,7 +5012,7 @@
             }
         }
 
-        // TODO(b/198499018): Store touch mode per display.
+        // TODO(b/198499018): Store touch mode per display (kPerDisplayTouchModeEnabled)
         mInTouchMode = inTouchMode;
 
         auto entry = std::make_unique<TouchModeEntry>(mIdGenerator.nextId(), now(), inTouchMode);
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index da4af48..be619ae 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -119,7 +119,8 @@
     void setFocusedDisplay(int32_t displayId) override;
     void setInputDispatchMode(bool enabled, bool frozen) override;
     void setInputFilterEnabled(bool enabled) override;
-    bool setInTouchMode(bool inTouchMode, int32_t pid, int32_t uid, bool hasPermission) override;
+    bool setInTouchMode(bool inTouchMode, int32_t pid, int32_t uid, bool hasPermission,
+                        int32_t displayId) override;
     void setMaximumObscuringOpacityForTouch(float opacity) override;
 
     bool transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken,
@@ -685,6 +686,9 @@
     bool focusedWindowIsOwnedByLocked(int32_t pid, int32_t uid) REQUIRES(mLock);
     bool recentWindowsAreOwnedByLocked(int32_t pid, int32_t uid) REQUIRES(mLock);
 
+    // Per display touch mode enabled
+    const bool kPerDisplayTouchModeEnabled;
+
     sp<InputReporterInterface> mReporter;
 };
 
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
index 84d9007..32b3ddb 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
@@ -132,7 +132,8 @@
      *
      * Returns true when changing touch mode state.
      */
-    virtual bool setInTouchMode(bool inTouchMode, int32_t pid, int32_t uid, bool hasPermission) = 0;
+    virtual bool setInTouchMode(bool inTouchMode, int32_t pid, int32_t uid, bool hasPermission,
+                                int32_t displayId) = 0;
 
     /**
      * Sets the maximum allowed obscuring opacity by UID to propagate touches.
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
index 6ee05da..7c299b2 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
@@ -137,6 +137,9 @@
 
     /* Notifies the policy that the drag window has moved over to another window */
     virtual void notifyDropWindow(const sp<IBinder>& token, float x, float y) = 0;
+
+    /* If touch mode is enabled per display or global */
+    virtual bool isPerDisplayTouchModeEnabled() = 0;
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index 2f3337b..895a347 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -42,6 +42,8 @@
 // data.
 static constexpr nsecs_t STYLUS_DATA_LATENCY = ms2ns(10);
 
+// Minimum width between two pointers to determine a gesture as freeform gesture in mm
+static const float MIN_FREEFORM_GESTURE_WIDTH_IN_MILLIMETER = 30;
 // --- Static Definitions ---
 
 template <typename T>
@@ -936,6 +938,11 @@
     // Raw width and height in the natural orientation.
     const int32_t rawWidth = mRawPointerAxes.getRawWidth();
     const int32_t rawHeight = mRawPointerAxes.getRawHeight();
+    const int32_t rawXResolution = mRawPointerAxes.x.resolution;
+    const int32_t rawYResolution = mRawPointerAxes.y.resolution;
+    // Calculate the mean resolution when both x and y resolution are set, otherwise set it to 0.
+    const float rawMeanResolution =
+            (rawXResolution > 0 && rawYResolution > 0) ? (rawXResolution + rawYResolution) / 2 : 0;
 
     const bool viewportChanged = mViewport != *newViewport;
     bool skipViewportUpdate = false;
@@ -1094,10 +1101,14 @@
                     mConfig.pointerGestureZoomSpeedRatio * displayDiagonal / rawDiagonal;
             mPointerYZoomScale = mPointerXZoomScale;
 
-            // Max width between pointers to detect a swipe gesture is more than some fraction
-            // of the diagonal axis of the touch pad.  Touches that are wider than this are
-            // translated into freeform gestures.
-            mPointerGestureMaxSwipeWidth = mConfig.pointerGestureSwipeMaxWidthRatio * rawDiagonal;
+            // Calculate the min freeform gesture width. It will be 0 when the resolution of any
+            // axis is non positive value.
+            const float minFreeformGestureWidth =
+                    rawMeanResolution * MIN_FREEFORM_GESTURE_WIDTH_IN_MILLIMETER;
+
+            mPointerGestureMaxSwipeWidth =
+                    std::max(mConfig.pointerGestureSwipeMaxWidthRatio * rawDiagonal,
+                             minFreeformGestureWidth);
 
             // Abort current pointer usages because the state has changed.
             const nsecs_t readTime = when; // synthetic event
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index 714ad3f..3042be6 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -527,7 +527,9 @@
     float mPointerXZoomScale;
     float mPointerYZoomScale;
 
-    // The maximum swipe width.
+    // The maximum swipe width between pointers to detect a swipe gesture
+    // in the number of pixels.Touches that are wider than this are translated
+    // into freeform gestures.
     float mPointerGestureMaxSwipeWidth;
 
     struct PointerDistanceHeapElement {
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 70fd25c..8a2dea5 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -500,6 +500,11 @@
         verify(*mFilteredEvent);
         mFilteredEvent = nullptr;
     }
+
+    bool isPerDisplayTouchModeEnabled() {
+        // TODO(b/198499018): Make this a regular property once per display touch mode is enabled
+        return false;
+    }
 };
 
 // --- InputDispatcherTest ---
@@ -3293,7 +3298,7 @@
 
     SCOPED_TRACE("Disable touch mode");
     mDispatcher->setInTouchMode(false, windowInfo.ownerPid, windowInfo.ownerUid,
-                                /* hasPermission */ true);
+                                true /*hasPermission*/, ADISPLAY_ID_DEFAULT);
     window->consumeTouchModeEvent(false);
     window->setFocusable(true);
     mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window}}});
@@ -3307,7 +3312,7 @@
 
     SCOPED_TRACE("Enable touch mode again");
     mDispatcher->setInTouchMode(true, windowInfo.ownerPid, windowInfo.ownerUid,
-                                /* hasPermission */ true);
+                                true /*hasPermission*/, ADISPLAY_ID_DEFAULT);
     window->consumeTouchModeEvent(true);
     window->setFocusable(true);
     mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window}}});
@@ -6715,14 +6720,15 @@
 
         // Set initial touch mode to InputDispatcher::kDefaultInTouchMode.
         if (mDispatcher->setInTouchMode(InputDispatcher::kDefaultInTouchMode, WINDOW_PID,
-                                        WINDOW_UID, /* hasPermission */ true)) {
+                                        WINDOW_UID, true /*hasPermission*/, ADISPLAY_ID_DEFAULT)) {
             mWindow->consumeTouchModeEvent(InputDispatcher::kDefaultInTouchMode);
             mSecondWindow->consumeTouchModeEvent(InputDispatcher::kDefaultInTouchMode);
         }
     }
 
     void changeAndVerifyTouchMode(bool inTouchMode, int32_t pid, int32_t uid, bool hasPermission) {
-        ASSERT_TRUE(mDispatcher->setInTouchMode(inTouchMode, pid, uid, hasPermission));
+        ASSERT_TRUE(mDispatcher->setInTouchMode(inTouchMode, pid, uid, hasPermission,
+                                                ADISPLAY_ID_DEFAULT));
         mWindow->consumeTouchModeEvent(inTouchMode);
         mSecondWindow->consumeTouchModeEvent(inTouchMode);
     }
@@ -6731,7 +6737,7 @@
 TEST_F(InputDispatcherTouchModeChangedTests, FocusedWindowCanChangeTouchMode) {
     const WindowInfo& windowInfo = *mWindow->getInfo();
     changeAndVerifyTouchMode(!InputDispatcher::kDefaultInTouchMode, windowInfo.ownerPid,
-                             windowInfo.ownerUid, /* hasPermission */ false);
+                             windowInfo.ownerUid, false /*hasPermission*/);
 }
 
 TEST_F(InputDispatcherTouchModeChangedTests, NonFocusedWindowOwnerCannotChangeTouchMode) {
@@ -6740,7 +6746,8 @@
     int32_t ownerUid = windowInfo.ownerUid;
     mWindow->setOwnerInfo(/* pid */ -1, /* uid */ -1);
     ASSERT_FALSE(mDispatcher->setInTouchMode(InputDispatcher::kDefaultInTouchMode, ownerPid,
-                                             ownerUid, /* hasPermission */ false));
+                                             ownerUid, false /*hasPermission*/,
+                                             ADISPLAY_ID_DEFAULT));
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
 }
@@ -6751,14 +6758,14 @@
     int32_t ownerUid = windowInfo.ownerUid;
     mWindow->setOwnerInfo(/* pid */ -1, /* uid */ -1);
     changeAndVerifyTouchMode(!InputDispatcher::kDefaultInTouchMode, ownerPid, ownerUid,
-                             /* hasPermission */ true);
+                             true /*hasPermission*/);
 }
 
 TEST_F(InputDispatcherTouchModeChangedTests, EventIsNotGeneratedIfNotChangingTouchMode) {
     const WindowInfo& windowInfo = *mWindow->getInfo();
     ASSERT_FALSE(mDispatcher->setInTouchMode(InputDispatcher::kDefaultInTouchMode,
                                              windowInfo.ownerPid, windowInfo.ownerUid,
-                                             /* hasPermission */ true));
+                                             true /*hasPermission*/, ADISPLAY_ID_DEFAULT));
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
 }
@@ -6777,7 +6784,7 @@
     const WindowInfo& windowInfo = *mWindow->getInfo();
     ASSERT_TRUE(mDispatcher->setInTouchMode(!InputDispatcher::kDefaultInTouchMode,
                                             windowInfo.ownerPid, windowInfo.ownerUid,
-                                            /* hasPermission= */ false));
+                                            false /*hasPermission*/, ADISPLAY_ID_DEFAULT));
 }
 
 class InputDispatcherSpyWindowTest : public InputDispatcherTest {
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 0fdffdf..67fcc40 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -373,8 +373,12 @@
         mConfig.defaultPointerDisplayId = pointerDisplayId;
     }
 
+    void setPointerGestureEnabled(bool enabled) { mConfig.pointerGesturesEnabled = enabled; }
+
     float getPointerGestureMovementSpeedRatio() { return mConfig.pointerGestureMovementSpeedRatio; }
 
+    float getPointerGestureZoomSpeedRatio() { return mConfig.pointerGestureZoomSpeedRatio; }
+
     void setVelocityControlParams(const VelocityControlParameters& params) {
         mConfig.pointerVelocityControlParameters = params;
         mConfig.wheelVelocityControlParameters = params;
@@ -9464,6 +9468,258 @@
     ASSERT_EQ(AINPUT_SOURCE_TOUCHPAD, mapper.getSources());
 }
 
+class MultiTouchPointerModeTest : public MultiTouchInputMapperTest {
+protected:
+    float mPointerMovementScale;
+    float mPointerXZoomScale;
+    void preparePointerMode(int xAxisResolution, int yAxisResolution) {
+        addConfigurationProperty("touch.deviceType", "pointer");
+        std::shared_ptr<FakePointerController> fakePointerController =
+                std::make_shared<FakePointerController>();
+        fakePointerController->setBounds(0, 0, DISPLAY_WIDTH - 1, DISPLAY_HEIGHT - 1);
+        fakePointerController->setPosition(0, 0);
+        fakePointerController->setButtonState(0);
+        prepareDisplay(DISPLAY_ORIENTATION_0);
+
+        prepareAxes(POSITION);
+        prepareAbsoluteAxisResolution(xAxisResolution, yAxisResolution);
+        // In order to enable swipe and freeform gesture in pointer mode, pointer capture
+        // needs to be disabled, and the pointer gesture needs to be enabled.
+        mFakePolicy->setPointerCapture(false);
+        mFakePolicy->setPointerGestureEnabled(true);
+        mFakePolicy->setPointerController(fakePointerController);
+
+        float rawDiagonal = hypotf(RAW_X_MAX - RAW_X_MIN, RAW_Y_MAX - RAW_Y_MIN);
+        float displayDiagonal = hypotf(DISPLAY_WIDTH, DISPLAY_HEIGHT);
+        mPointerMovementScale =
+                mFakePolicy->getPointerGestureMovementSpeedRatio() * displayDiagonal / rawDiagonal;
+        mPointerXZoomScale =
+                mFakePolicy->getPointerGestureZoomSpeedRatio() * displayDiagonal / rawDiagonal;
+    }
+
+    void prepareAbsoluteAxisResolution(int xAxisResolution, int yAxisResolution) {
+        mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_X, RAW_X_MIN, RAW_X_MAX,
+                                       /*flat*/ 0,
+                                       /*fuzz*/ 0, /*resolution*/ xAxisResolution);
+        mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_Y, RAW_Y_MIN, RAW_Y_MAX,
+                                       /*flat*/ 0,
+                                       /*fuzz*/ 0, /*resolution*/ yAxisResolution);
+    }
+};
+
+/**
+ * Two fingers down on a pointer mode touch pad. The width
+ * of the two finger is larger than 1/4 of the touch pack diagnal length. However, it
+ * is smaller than the fixed min physical length 30mm. Two fingers' distance must
+ * be greater than the both value to be freeform gesture, so that after two
+ * fingers start to move downwards, the gesture should be swipe.
+ */
+TEST_F(MultiTouchPointerModeTest, PointerGestureMaxSwipeWidthSwipe) {
+    // The min freeform gesture width is 25units/mm x 30mm = 750
+    // which is greater than fraction of the diagnal length of the touchpad (349).
+    // Thus, MaxSwipWidth is 750.
+    preparePointerMode(25 /*xResolution*/, 25 /*yResolution*/);
+    MultiTouchInputMapper& mapper = addMapperAndConfigure<MultiTouchInputMapper>();
+    NotifyMotionArgs motionArgs;
+
+    // Two fingers down at once.
+    // The two fingers are 450 units apart, expects the current gesture to be PRESS
+    // Pointer's initial position is used the [0,0] coordinate.
+    int32_t x1 = 100, y1 = 125, x2 = 550, y2 = 125;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    ASSERT_NO_FATAL_FAILURE(
+            assertPointerCoords(motionArgs.pointerCoords[0], 0, 0, 1, 0, 0, 0, 0, 0, 0, 0));
+
+    // It should be recognized as a SWIPE gesture when two fingers start to move down,
+    // that there should be 1 pointer.
+    int32_t movingDistance = 200;
+    y1 += movingDistance;
+    y2 += movingDistance;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0], 0,
+                                                movingDistance * mPointerMovementScale, 1, 0, 0, 0,
+                                                0, 0, 0, 0));
+}
+
+/**
+ * Two fingers down on a pointer mode touch pad. The width of the two finger is larger
+ * than the minimum freeform gesture width, 30mm. However, it is smaller than 1/4 of
+ * the touch pack diagnal length. Two fingers' distance must be greater than the both
+ * value to be freeform gesture, so that after two fingers start to move downwards,
+ * the gesture should be swipe.
+ */
+TEST_F(MultiTouchPointerModeTest, PointerGestureMaxSwipeWidthLowResolutionSwipe) {
+    // The min freeform gesture width is 5units/mm x 30mm = 150
+    // which is greater than fraction of the diagnal length of the touchpad (349).
+    // Thus, MaxSwipWidth is the fraction of the diagnal length, 349.
+    preparePointerMode(5 /*xResolution*/, 5 /*yResolution*/);
+    MultiTouchInputMapper& mapper = addMapperAndConfigure<MultiTouchInputMapper>();
+    NotifyMotionArgs motionArgs;
+
+    // Two fingers down at once.
+    // The two fingers are 250 units apart, expects the current gesture to be PRESS
+    // Pointer's initial position is used the [0,0] coordinate.
+    int32_t x1 = 100, y1 = 125, x2 = 350, y2 = 125;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    ASSERT_NO_FATAL_FAILURE(
+            assertPointerCoords(motionArgs.pointerCoords[0], 0, 0, 1, 0, 0, 0, 0, 0, 0, 0));
+
+    // It should be recognized as a SWIPE gesture when two fingers start to move down,
+    // and there should be 1 pointer.
+    int32_t movingDistance = 200;
+    y1 += movingDistance;
+    y2 += movingDistance;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    // New coordinate is the scaled relative coordinate from the initial coordinate.
+    ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0], 0,
+                                                movingDistance * mPointerMovementScale, 1, 0, 0, 0,
+                                                0, 0, 0, 0));
+}
+
+/**
+ * Touch the touch pad with two fingers with a distance wider than the minimum freeform
+ * gesture width and 1/4 of the diagnal length of the touchpad. Expect to receive
+ * freeform gestures after two fingers start to move downwards.
+ */
+TEST_F(MultiTouchPointerModeTest, PointerGestureMaxSwipeWidthFreeform) {
+    preparePointerMode(25 /*xResolution*/, 25 /*yResolution*/);
+    MultiTouchInputMapper& mapper = addMapperAndConfigure<MultiTouchInputMapper>();
+
+    NotifyMotionArgs motionArgs;
+
+    // Two fingers down at once. Wider than the max swipe width.
+    // The gesture is expected to be PRESS, then transformed to FREEFORM
+    int32_t x1 = 100, y1 = 125, x2 = 900, y2 = 125;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    // One pointer for PRESS, and its coordinate is used as the origin for pointer coordinates.
+    ASSERT_NO_FATAL_FAILURE(
+            assertPointerCoords(motionArgs.pointerCoords[0], 0, 0, 1, 0, 0, 0, 0, 0, 0, 0));
+
+    int32_t movingDistance = 200;
+
+    // Move two fingers down, expect a cancel event because gesture is changing to freeform,
+    // then two down events for two pointers.
+    y1 += movingDistance;
+    y2 += movingDistance;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    // The previous PRESS gesture is cancelled, because it is transformed to freeform
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_CANCEL, motionArgs.action);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    ASSERT_EQ(1U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    ASSERT_EQ(2U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_POINTER_DOWN, motionArgs.action & AMOTION_EVENT_ACTION_MASK);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    // Two pointers' scaled relative coordinates from their initial centroid.
+    // Initial y coordinates are 0 as y1 and y2 have the same value.
+    float cookedX1 = (x1 - x2) / 2 * mPointerXZoomScale;
+    float cookedX2 = (x2 - x1) / 2 * mPointerXZoomScale;
+    // When pointers move,  the new coordinates equal to the initial coordinates plus
+    // scaled moving distance.
+    ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0], cookedX1,
+                                                movingDistance * mPointerMovementScale, 1, 0, 0, 0,
+                                                0, 0, 0, 0));
+    ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[1], cookedX2,
+                                                movingDistance * mPointerMovementScale, 1, 0, 0, 0,
+                                                0, 0, 0, 0));
+
+    // Move two fingers down again, expect one MOVE motion event.
+    y1 += movingDistance;
+    y2 += movingDistance;
+
+    processId(mapper, FIRST_TRACKING_ID);
+    processPosition(mapper, x1, y1);
+    processMTSync(mapper);
+    processId(mapper, SECOND_TRACKING_ID);
+    processPosition(mapper, x2, y2);
+    processMTSync(mapper);
+    processSync(mapper);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(2U, motionArgs.pointerCount);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+    ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[0], cookedX1,
+                                                movingDistance * 2 * mPointerMovementScale, 1, 0, 0,
+                                                0, 0, 0, 0, 0));
+    ASSERT_NO_FATAL_FAILURE(assertPointerCoords(motionArgs.pointerCoords[1], cookedX2,
+                                                movingDistance * 2 * mPointerMovementScale, 1, 0, 0,
+                                                0, 0, 0, 0, 0));
+}
+
 // --- JoystickInputMapperTest ---
 
 class JoystickInputMapperTest : public InputMapperTest {