Snap for 7592383 from 7089fbbfe5ca8b40fbc1fc41f0272642d6d427d8 to sc-release

Change-Id: I3e5b2ca9dd012b5b1c623e30c346ec38fd04b62b

3 files changed, 46 insertions, 1 deletions

diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index 37fc9a9356..e3c4edebbd 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -266,7 +266,10 @@ on late-init
     chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu15/trace
     chmod 0666 /sys/kernel/tracing/per_cpu/cpu15/trace
 
-on post-fs-data
+# Only create the tracing instance if persist.mm_events.enabled
+# Attempting to remove the tracing instance after it has been created
+# will likely fail with EBUSY as it would be in use by traced_probes.
+on post-fs-data && property:persist.mm_events.enabled=true
 # Create MM Events Tracing Instance for Kmem Activity Trigger
     mkdir /sys/kernel/debug/tracing/instances/mm_events 0755 system system
     mkdir /sys/kernel/tracing/instances/mm_events 0755 system system
@@ -275,10 +278,18 @@ on post-fs-data
     chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/buffer_size_kb
     chmod 0666 /sys/kernel/tracing/instances/mm_events/buffer_size_kb
 
+# Set the default buffer size to the minimum
+    write /sys/kernel/debug/tracing/instances/mm_events/buffer_size_kb 1
+    write /sys/kernel/tracing/instances/mm_events/buffer_size_kb 1
+
 # Read and enable tracing
     chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/tracing_on
     chmod 0666 /sys/kernel/tracing/instances/mm_events/tracing_on
 
+# Tracing disabled by default
+    write /sys/kernel/debug/tracing/instances/mm_events/tracing_on 0
+    write /sys/kernel/tracing/instances/mm_events/tracing_on 0
+
 # Read and truncate kernel trace
     chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/trace
     chmod 0666 /sys/kernel/tracing/instances/mm_events/trace
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index 70ed438112..d954d23507 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -23,6 +23,7 @@
 #include <limits.h>
 #include <string.h>
 
+#include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <input/Input.h>
 #include <input/InputDevice.h>
@@ -41,6 +42,15 @@ namespace android {
 
 namespace {
 
+// When per-window-input-rotation is enabled, InputFlinger works in the un-rotated display
+// coordinates and SurfaceFlinger includes the display rotation in the input window transforms.
+bool isPerWindowInputRotationEnabled() {
+    static const bool PER_WINDOW_INPUT_ROTATION =
+            base::GetBoolProperty("persist.debug.per_window_input_rotation", false);
+
+    return PER_WINDOW_INPUT_ROTATION;
+}
+
 float transformAngle(const ui::Transform& transform, float angleRadians) {
     // Construct and transform a vector oriented at the specified clockwise angle from vertical.
     // Coordinate system: down is increasing Y, right is increasing X.
@@ -506,6 +516,8 @@ float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
                                              size_t historicalIndex) const {
     const PointerCoords* coords = getHistoricalRawPointerCoords(pointerIndex, historicalIndex);
 
+    if (!isPerWindowInputRotationEnabled()) return coords->getAxisValue(axis);
+
     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.
diff --git a/libs/input/tests/InputEvent_test.cpp b/libs/input/tests/InputEvent_test.cpp
index 32b72ba616..3b76ddbb7c 100644
--- a/libs/input/tests/InputEvent_test.cpp
+++ b/libs/input/tests/InputEvent_test.cpp
@@ -17,6 +17,7 @@
 #include <array>
 #include <math.h>
 
+#include <android-base/properties.h>
 #include <attestation/HmacKeyManager.h>
 #include <binder/Parcel.h>
 #include <gtest/gtest.h>
@@ -225,13 +226,34 @@ protected:
     static constexpr float X_OFFSET = 1;
     static constexpr float Y_OFFSET = 1.1;
 
+    static const std::optional<bool> INITIAL_PER_WINDOW_INPUT_ROTATION_FLAG_VALUE;
+
     int32_t mId;
     ui::Transform mTransform;
 
+    void SetUp() override;
+    void TearDown() override;
+
     void initializeEventWithHistory(MotionEvent* event);
     void assertEqualsEventWithHistory(const MotionEvent* event);
 };
 
+const std::optional<bool> MotionEventTest::INITIAL_PER_WINDOW_INPUT_ROTATION_FLAG_VALUE =
+        !base::GetProperty("persist.debug.per_window_input_rotation", "").empty()
+        ? std::optional(base::GetBoolProperty("persist.debug.per_window_input_rotation", false))
+        : std::nullopt;
+
+void MotionEventTest::SetUp() {
+    // Ensure per_window_input_rotation is enabled.
+    base::SetProperty("persist.debug.per_window_input_rotation", "true");
+}
+
+void MotionEventTest::TearDown() {
+    const auto val = INITIAL_PER_WINDOW_INPUT_ROTATION_FLAG_VALUE.has_value()
+            ? (*INITIAL_PER_WINDOW_INPUT_ROTATION_FLAG_VALUE ? "true" : "false")
+            : "";
+    base::SetProperty("persist.debug.per_window_input_rotation", val);
+}
 
 void MotionEventTest::initializeEventWithHistory(MotionEvent* event) {
     mId = InputEvent::nextId();