InputTracer: Trace an event being dispatched to a window
Bug: 210460522
Test: manual with perfetto
Change-Id: Ie161726da294bc5c660d5062af85c9cd621c1b4c
diff --git a/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp b/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp
index a15ad80..a61fa85 100644
--- a/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp
+++ b/services/inputflinger/dispatcher/trace/AndroidInputEventProtoConverter.cpp
@@ -71,4 +71,39 @@
outProto.set_policy_flags(event.policyFlags);
}
+void AndroidInputEventProtoConverter::toProtoWindowDispatchEvent(
+ const InputTracingBackendInterface::WindowDispatchArgs& args,
+ proto::AndroidWindowInputDispatchEvent& outProto) {
+ std::visit([&](auto entry) { outProto.set_event_id(entry.id); }, args.eventEntry);
+ outProto.set_vsync_id(args.vsyncId);
+ outProto.set_window_id(args.windowId);
+ outProto.set_resolved_flags(args.resolvedFlags);
+
+ if (auto* motion = std::get_if<TracedMotionEvent>(&args.eventEntry); motion != nullptr) {
+ for (size_t i = 0; i < motion->pointerProperties.size(); i++) {
+ auto* pointerProto = outProto.add_dispatched_pointer();
+ pointerProto->set_pointer_id(motion->pointerProperties[i].id);
+ const auto rawXY =
+ MotionEvent::calculateTransformedXY(motion->source, args.rawTransform,
+ motion->pointerCoords[i].getXYValue());
+ pointerProto->set_x_in_display(rawXY.x);
+ pointerProto->set_y_in_display(rawXY.y);
+
+ const auto& coords = motion->pointerCoords[i];
+ const auto coordsInWindow =
+ MotionEvent::calculateTransformedCoords(motion->source, args.transform, coords);
+ auto bits = BitSet64(coords.bits);
+ for (int32_t axisIndex = 0; !bits.isEmpty(); axisIndex++) {
+ const uint32_t axis = bits.clearFirstMarkedBit();
+ const float axisValueInWindow = coordsInWindow.values[axisIndex];
+ if (coords.values[axisIndex] != axisValueInWindow) {
+ auto* axisEntry = pointerProto->add_axis_value_in_window();
+ axisEntry->set_axis(axis);
+ axisEntry->set_value(axisValueInWindow);
+ }
+ }
+ }
+ }
+}
+
} // namespace android::inputdispatcher::trace