Move //content/browser/device_sensor/ into device/sensors

device/sensors/data_fetcher_shared_memory_win.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/browser/device_sensors/data_fetcher_shared_memory.h"
+#include "device/sensors/data_fetcher_shared_memory.h"
 
 #include <GuidDef.h>
 #include <InitGuid.h>
 #include <PortableDeviceTypes.h>
 #include <Sensors.h>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/win/iunknown_impl.h"
 #include "base/win/windows_version.h"
 
 namespace {
 
 const double kMeanGravity = 9.80665;
 
-void SetLightBuffer(content::DeviceLightHardwareBuffer* buffer, double lux) {
+void SetLightBuffer(device::DeviceLightHardwareBuffer* buffer, double lux) {
   DCHECK(buffer);
   buffer->seqlock.WriteBegin();
   buffer->data.value = lux;
   buffer->seqlock.WriteEnd();
 }
 
 }  // namespace
 
-
-namespace content {
+namespace device {
 
 class DataFetcherSharedMemory::SensorEventSink
-    : public ISensorEvents, public base::win::IUnknownImpl {
+    : public ISensorEvents,
+      public base::win::IUnknownImpl {
  public:
   SensorEventSink() {}
   ~SensorEventSink() override {}
 
   // IUnknown interface
-  ULONG STDMETHODCALLTYPE AddRef() override {
-    return IUnknownImpl::AddRef();
-  }
+  ULONG STDMETHODCALLTYPE AddRef() override { return IUnknownImpl::AddRef(); }
 
-  ULONG STDMETHODCALLTYPE Release() override {
-    return IUnknownImpl::Release();
-  }
+  ULONG STDMETHODCALLTYPE Release() override { return IUnknownImpl::Release(); }
 
   STDMETHODIMP QueryInterface(REFIID riid, void** ppv) override {
     if (riid == __uuidof(ISensorEvents)) {
       *ppv = static_cast<ISensorEvents*>(this);
       AddRef();
       return S_OK;
     }
     return IUnknownImpl::QueryInterface(riid, ppv);
   }
 
   // ISensorEvents interface
   STDMETHODIMP OnEvent(ISensor* sensor,
                        REFGUID event_id,
                        IPortableDeviceValues* event_data) override {
     return S_OK;
   }
 
-  STDMETHODIMP OnLeave(REFSENSOR_ID sensor_id) override {
-    return S_OK;
-  }
+  STDMETHODIMP OnLeave(REFSENSOR_ID sensor_id) override { return S_OK; }
 
   STDMETHODIMP OnStateChanged(ISensor* sensor, SensorState state) override {
     return S_OK;
   }
 
   STDMETHODIMP OnDataUpdated(ISensor* sensor,
                              ISensorDataReport* new_data) override {
     if (nullptr == new_data || nullptr == sensor)
       return E_INVALIDARG;
     return UpdateSharedMemoryBuffer(sensor, new_data) ? S_OK : E_FAIL;
   }
 
  protected:
-  virtual bool UpdateSharedMemoryBuffer(
-      ISensor* sensor, ISensorDataReport* new_data) = 0;
+  virtual bool UpdateSharedMemoryBuffer(ISensor* sensor,
+                                        ISensorDataReport* new_data) = 0;
 
-  void GetSensorValue(REFPROPERTYKEY property, ISensorDataReport* new_data,
-      double* value, bool* has_value) {
+  void GetSensorValue(REFPROPERTYKEY property,
+                      ISensorDataReport* new_data,
+                      double* value,
+                      bool* has_value) {
     PROPVARIANT variant_value = {};
     if (SUCCEEDED(new_data->GetSensorValue(property, &variant_value))) {
       if (variant_value.vt == VT_R8)
         *value = variant_value.dblVal;
       else if (variant_value.vt == VT_R4)
         *value = variant_value.fltVal;
       *has_value = true;
     } else {
       *value = 0;
       *has_value = false;
     }
   }
 
  private:
-
   DISALLOW_COPY_AND_ASSIGN(SensorEventSink);
 };
 
 class DataFetcherSharedMemory::SensorEventSinkOrientation
     : public DataFetcherSharedMemory::SensorEventSink {
  public:
   explicit SensorEventSinkOrientation(
-      DeviceOrientationHardwareBuffer* const buffer) : buffer_(buffer) {}
+      DeviceOrientationHardwareBuffer* const buffer)
+      : buffer_(buffer) {}
   ~SensorEventSinkOrientation() override {}
 
  protected:
-  bool UpdateSharedMemoryBuffer(
-      ISensor* sensor, ISensorDataReport* new_data) override {
+  bool UpdateSharedMemoryBuffer(ISensor* sensor,
+                                ISensorDataReport* new_data) override {
     double alpha, beta, gamma;
     bool has_alpha, has_beta, has_gamma;
 
-    GetSensorValue(SENSOR_DATA_TYPE_TILT_X_DEGREES, new_data, &beta,
-        &has_beta);
+    GetSensorValue(SENSOR_DATA_TYPE_TILT_X_DEGREES, new_data, &beta, &has_beta);
     GetSensorValue(SENSOR_DATA_TYPE_TILT_Y_DEGREES, new_data, &gamma,
-        &has_gamma);
+                   &has_gamma);
     GetSensorValue(SENSOR_DATA_TYPE_TILT_Z_DEGREES, new_data, &alpha,
-        &has_alpha);
+                   &has_alpha);
 
     if (buffer_) {
       buffer_->seqlock.WriteBegin();
       buffer_->data.alpha = alpha;
       buffer_->data.hasAlpha = has_alpha;
       buffer_->data.beta = beta;
       buffer_->data.hasBeta = has_beta;
       buffer_->data.gamma = gamma;
       buffer_->data.hasGamma = has_gamma;
       buffer_->data.absolute = has_alpha || has_beta || has_gamma;
@@ skipping 11 matching lines @@
 };
 
 class DataFetcherSharedMemory::SensorEventSinkMotion
     : public DataFetcherSharedMemory::SensorEventSink {
  public:
   explicit SensorEventSinkMotion(DeviceMotionHardwareBuffer* const buffer)
       : buffer_(buffer) {}
   ~SensorEventSinkMotion() override {}
 
  protected:
-  bool UpdateSharedMemoryBuffer(
-      ISensor* sensor, ISensorDataReport* new_data) override {
-
+  bool UpdateSharedMemoryBuffer(ISensor* sensor,
+                                ISensorDataReport* new_data) override {
     SENSOR_TYPE_ID sensor_type = GUID_NULL;
     if (!SUCCEEDED(sensor->GetType(&sensor_type)))
       return false;
 
     if (IsEqualIID(sensor_type, SENSOR_TYPE_ACCELEROMETER_3D)) {
       double acceleration_including_gravity_x;
       double acceleration_including_gravity_y;
       double acceleration_including_gravity_z;
       bool has_acceleration_including_gravity_x;
       bool has_acceleration_including_gravity_y;
       bool has_acceleration_including_gravity_z;
 
       GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_X_G, new_data,
-          &acceleration_including_gravity_x,
-          &has_acceleration_including_gravity_x);
+                     &acceleration_including_gravity_x,
+                     &has_acceleration_including_gravity_x);
       GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_Y_G, new_data,
-          &acceleration_including_gravity_y,
-          &has_acceleration_including_gravity_y);
+                     &acceleration_including_gravity_y,
+                     &has_acceleration_including_gravity_y);
       GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_Z_G, new_data,
-          &acceleration_including_gravity_z,
-          &has_acceleration_including_gravity_z);
+                     &acceleration_including_gravity_z,
+                     &has_acceleration_including_gravity_z);
 
       if (buffer_) {
         buffer_->seqlock.WriteBegin();
         buffer_->data.accelerationIncludingGravityX =
             -acceleration_including_gravity_x * kMeanGravity;
         buffer_->data.hasAccelerationIncludingGravityX =
             has_acceleration_including_gravity_x;
         buffer_->data.accelerationIncludingGravityY =
             -acceleration_including_gravity_y * kMeanGravity;
         buffer_->data.hasAccelerationIncludingGravityY =
             has_acceleration_including_gravity_y;
         buffer_->data.accelerationIncludingGravityZ =
             -acceleration_including_gravity_z * kMeanGravity;
         buffer_->data.hasAccelerationIncludingGravityZ =
             has_acceleration_including_gravity_z;
         // TODO(timvolodine): consider setting this after all
         // sensors have fired.
         buffer_->data.allAvailableSensorsAreActive = true;
         buffer_->seqlock.WriteEnd();
       }
 
     } else if (IsEqualIID(sensor_type, SENSOR_TYPE_GYROMETER_3D)) {
       double alpha, beta, gamma;
       bool has_alpha, has_beta, has_gamma;
 
       GetSensorValue(SENSOR_DATA_TYPE_ANGULAR_VELOCITY_X_DEGREES_PER_SECOND,
-          new_data, &alpha, &has_alpha);
+                     new_data, &alpha, &has_alpha);
       GetSensorValue(SENSOR_DATA_TYPE_ANGULAR_VELOCITY_Y_DEGREES_PER_SECOND,
-          new_data, &beta, &has_beta);
+                     new_data, &beta, &has_beta);
       GetSensorValue(SENSOR_DATA_TYPE_ANGULAR_VELOCITY_Z_DEGREES_PER_SECOND,
-          new_data, &gamma, &has_gamma);
+                     new_data, &gamma, &has_gamma);
 
       if (buffer_) {
         buffer_->seqlock.WriteBegin();
         buffer_->data.rotationRateAlpha = alpha;
         buffer_->data.hasRotationRateAlpha = has_alpha;
         buffer_->data.rotationRateBeta = beta;
         buffer_->data.hasRotationRateBeta = has_beta;
         buffer_->data.rotationRateGamma = gamma;
         buffer_->data.hasRotationRateGamma = has_gamma;
         buffer_->data.allAvailableSensorsAreActive = true;
@@ skipping 12 matching lines @@
 
 class DataFetcherSharedMemory::SensorEventSinkLight
     : public DataFetcherSharedMemory::SensorEventSink {
  public:
   explicit SensorEventSinkLight(DeviceLightHardwareBuffer* const buffer)
       : buffer_(buffer) {}
   ~SensorEventSinkLight() override {}
 
  protected:
   bool UpdateSharedMemoryBuffer(ISensor* sensor,
-                                        ISensorDataReport* new_data) override {
+                                ISensorDataReport* new_data) override {
     double lux;
     bool has_lux;
 
     GetSensorValue(SENSOR_DATA_TYPE_LIGHT_LEVEL_LUX, new_data, &lux, &has_lux);
 
-    if(!has_lux) {
+    if (!has_lux) {
       // Could not get lux value.
       return false;
     }
 
     SetLightBuffer(buffer_, lux);
 
     return true;
   }
 
  private:
   DeviceLightHardwareBuffer* const buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(SensorEventSinkLight);
 };
 
 DataFetcherSharedMemory::DataFetcherSharedMemory() {}
 
-DataFetcherSharedMemory::~DataFetcherSharedMemory() {
-}
+DataFetcherSharedMemory::~DataFetcherSharedMemory() {}
 
 DataFetcherSharedMemory::FetcherType DataFetcherSharedMemory::GetType() const {
   return FETCHER_TYPE_SEPARATE_THREAD;
 }
 
 bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) {
   DCHECK(buffer);
 
   switch (consumer_type) {
-    case CONSUMER_TYPE_ORIENTATION:
-      {
-        orientation_buffer_ =
-            static_cast<DeviceOrientationHardwareBuffer*>(buffer);
-        scoped_refptr<SensorEventSink> sink(
-            new SensorEventSinkOrientation(orientation_buffer_));
-        bool inclinometer_available = RegisterForSensor(
-            SENSOR_TYPE_INCLINOMETER_3D, sensor_inclinometer_.Receive(), sink);
-        UMA_HISTOGRAM_BOOLEAN("InertialSensor.InclinometerWindowsAvailable",
-            inclinometer_available);
-        if (inclinometer_available)
-          return true;
-        // if no sensors are available set buffer to ready, to fire null-events.
-        SetBufferAvailableState(consumer_type, true);
+    case CONSUMER_TYPE_ORIENTATION: {
+      orientation_buffer_ =
+          static_cast<DeviceOrientationHardwareBuffer*>(buffer);
+      scoped_refptr<SensorEventSink> sink(
+          new SensorEventSinkOrientation(orientation_buffer_));
+      bool inclinometer_available = RegisterForSensor(
+          SENSOR_TYPE_INCLINOMETER_3D, sensor_inclinometer_.Receive(), sink);
+      UMA_HISTOGRAM_BOOLEAN("InertialSensor.InclinometerWindowsAvailable",
+                            inclinometer_available);
+      if (inclinometer_available)
+        return true;
+      // if no sensors are available set buffer to ready, to fire null-events.
+      SetBufferAvailableState(consumer_type, true);
+    } break;
+    case CONSUMER_TYPE_ORIENTATION_ABSOLUTE: {
+      orientation_absolute_buffer_ =
+          static_cast<DeviceOrientationHardwareBuffer*>(buffer);
+      scoped_refptr<SensorEventSink> sink(
+          new SensorEventSinkOrientation(orientation_absolute_buffer_));
+      // Currently we use the same sensor as for orientation which provides
+      // absolute angles.
+      bool inclinometer_available =
+          RegisterForSensor(SENSOR_TYPE_INCLINOMETER_3D,
+                            sensor_inclinometer_absolute_.Receive(), sink);
+      // TODO(timvolodine): consider adding UMA.
+      if (inclinometer_available)
+        return true;
+      // if no sensors are available set buffer to ready, to fire null-events.
+      SetBufferAvailableState(consumer_type, true);
+    } break;
+    case CONSUMER_TYPE_MOTION: {
+      motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer);
+      scoped_refptr<SensorEventSink> sink(
+          new SensorEventSinkMotion(motion_buffer_));
+      bool accelerometer_available = RegisterForSensor(
+          SENSOR_TYPE_ACCELEROMETER_3D, sensor_accelerometer_.Receive(), sink);
+      bool gyrometer_available = RegisterForSensor(
+          SENSOR_TYPE_GYROMETER_3D, sensor_gyrometer_.Receive(), sink);
+      UMA_HISTOGRAM_BOOLEAN("InertialSensor.AccelerometerWindowsAvailable",
+                            accelerometer_available);
+      UMA_HISTOGRAM_BOOLEAN("InertialSensor.GyrometerWindowsAvailable",
+                            gyrometer_available);
+      if (accelerometer_available || gyrometer_available) {
+        motion_buffer_->seqlock.WriteBegin();
+        motion_buffer_->data.interval = GetInterval().InMilliseconds();
+        motion_buffer_->seqlock.WriteEnd();
+        return true;
       }
-      break;
-    case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
-      {
-        orientation_absolute_buffer_ =
-            static_cast<DeviceOrientationHardwareBuffer*>(buffer);
-        scoped_refptr<SensorEventSink> sink(
-            new SensorEventSinkOrientation(orientation_absolute_buffer_));
-        // Currently we use the same sensor as for orientation which provides
-        // absolute angles.
-        bool inclinometer_available = RegisterForSensor(
-            SENSOR_TYPE_INCLINOMETER_3D,
-            sensor_inclinometer_absolute_.Receive(), sink);
-        // TODO(timvolodine): consider adding UMA.
-        if (inclinometer_available)
-          return true;
-        // if no sensors are available set buffer to ready, to fire null-events.
-        SetBufferAvailableState(consumer_type, true);
+      // if no sensors are available set buffer to ready, to fire null-events.
+      SetBufferAvailableState(consumer_type, true);
+    } break;
+    case CONSUMER_TYPE_LIGHT: {
+      light_buffer_ = static_cast<DeviceLightHardwareBuffer*>(buffer);
+      scoped_refptr<SensorEventSink> sink(
+          new SensorEventSinkLight(light_buffer_));
+      bool sensor_light_available = RegisterForSensor(
+          SENSOR_TYPE_AMBIENT_LIGHT, sensor_light_.Receive(), sink);
+      if (sensor_light_available) {
+        SetLightBuffer(light_buffer_, -1);
+        return true;
       }
-      break;
-    case CONSUMER_TYPE_MOTION:
-      {
-        motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer);
-        scoped_refptr<SensorEventSink> sink(
-            new SensorEventSinkMotion(motion_buffer_));
-        bool accelerometer_available = RegisterForSensor(
-            SENSOR_TYPE_ACCELEROMETER_3D, sensor_accelerometer_.Receive(),
-            sink);
-        bool gyrometer_available = RegisterForSensor(
-            SENSOR_TYPE_GYROMETER_3D, sensor_gyrometer_.Receive(), sink);
-        UMA_HISTOGRAM_BOOLEAN("InertialSensor.AccelerometerWindowsAvailable",
-            accelerometer_available);
-        UMA_HISTOGRAM_BOOLEAN("InertialSensor.GyrometerWindowsAvailable",
-            gyrometer_available);
-        if (accelerometer_available || gyrometer_available) {
-          motion_buffer_->seqlock.WriteBegin();
-          motion_buffer_->data.interval = GetInterval().InMilliseconds();
-          motion_buffer_->seqlock.WriteEnd();
-          return true;
-        }
-        // if no sensors are available set buffer to ready, to fire null-events.
-        SetBufferAvailableState(consumer_type, true);
-      }
-      break;
-    case CONSUMER_TYPE_LIGHT:
-      {
-        light_buffer_ = static_cast<DeviceLightHardwareBuffer*>(buffer);
-        scoped_refptr<SensorEventSink> sink(
-            new SensorEventSinkLight(light_buffer_));
-        bool sensor_light_available = RegisterForSensor(
-            SENSOR_TYPE_AMBIENT_LIGHT, sensor_light_.Receive(), sink);
-        if (sensor_light_available) {
-          SetLightBuffer(light_buffer_, -1);
-          return true;
-        }
 
-        // if no sensors are available, fire an Infinity event.
-        SetLightBuffer(light_buffer_, std::numeric_limits<double>::infinity());
-      }
-      break;
+      // if no sensors are available, fire an Infinity event.
+      SetLightBuffer(light_buffer_, std::numeric_limits<double>::infinity());
+    } break;
     default:
       NOTREACHED();
   }
   return false;
 }
 
 bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
   DisableSensors(consumer_type);
   switch (consumer_type) {
     case CONSUMER_TYPE_ORIENTATION:
@@ skipping 24 matching lines @@
     scoped_refptr<SensorEventSink> event_sink) {
   if (base::win::GetVersion() < base::win::VERSION_WIN7)
     return false;
 
   base::win::ScopedComPtr<ISensorManager> sensor_manager;
   HRESULT hr = sensor_manager.CreateInstance(CLSID_SensorManager);
   if (FAILED(hr) || !sensor_manager.get())
     return false;
 
   base::win::ScopedComPtr<ISensorCollection> sensor_collection;
-  hr = sensor_manager->GetSensorsByType(
-      sensor_type, sensor_collection.Receive());
+  hr = sensor_manager->GetSensorsByType(sensor_type,
+                                        sensor_collection.Receive());
 
   if (FAILED(hr) || !sensor_collection.get())
     return false;
 
   ULONG count = 0;
   hr = sensor_collection->GetCount(&count);
   if (FAILED(hr) || !count)
     return false;
 
   hr = sensor_collection->GetAt(0, sensor);
   if (FAILED(hr) || !(*sensor))
     return false;
 
   base::win::ScopedComPtr<IPortableDeviceValues> device_values;
   if (SUCCEEDED(device_values.CreateInstance(CLSID_PortableDeviceValues))) {
     if (SUCCEEDED(device_values->SetUnsignedIntegerValue(
-        SENSOR_PROPERTY_CURRENT_REPORT_INTERVAL,
-        GetInterval().InMilliseconds()))) {
+            SENSOR_PROPERTY_CURRENT_REPORT_INTERVAL,
+            GetInterval().InMilliseconds()))) {
       base::win::ScopedComPtr<IPortableDeviceValues> return_values;
       (*sensor)->SetProperties(device_values.get(), return_values.Receive());
     }
   }
 
   base::win::ScopedComPtr<ISensorEvents> sensor_events;
-  hr = event_sink->QueryInterface(
-      __uuidof(ISensorEvents), sensor_events.ReceiveVoid());
+  hr = event_sink->QueryInterface(__uuidof(ISensorEvents),
+                                  sensor_events.ReceiveVoid());
   if (FAILED(hr) || !sensor_events.get())
     return false;
 
   hr = (*sensor)->SetEventSink(sensor_events.get());
   if (FAILED(hr))
     return false;
 
   return true;
 }
 
 void DataFetcherSharedMemory::DisableSensors(ConsumerType consumer_type) {
-  switch(consumer_type) {
+  switch (consumer_type) {
     case CONSUMER_TYPE_ORIENTATION:
       if (sensor_inclinometer_.get()) {
         sensor_inclinometer_->SetEventSink(nullptr);
         sensor_inclinometer_.Release();
       }
       break;
     case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
       if (sensor_inclinometer_absolute_.get()) {
         sensor_inclinometer_absolute_->SetEventSink(nullptr);
         sensor_inclinometer_absolute_.Release();
@@ skipping 14 matching lines @@
         sensor_light_->SetEventSink(nullptr);
         sensor_light_.Release();
       }
       break;
     default:
       NOTREACHED();
   }
 }
 
 void DataFetcherSharedMemory::SetBufferAvailableState(
-    ConsumerType consumer_type, bool enabled) {
-  switch(consumer_type) {
+    ConsumerType consumer_type,
+    bool enabled) {
+  switch (consumer_type) {
     case CONSUMER_TYPE_ORIENTATION:
       if (orientation_buffer_) {
         orientation_buffer_->seqlock.WriteBegin();
         orientation_buffer_->data.allAvailableSensorsAreActive = enabled;
         orientation_buffer_->seqlock.WriteEnd();
       }
       break;
     case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
       if (orientation_absolute_buffer_) {
         orientation_absolute_buffer_->seqlock.WriteBegin();
         orientation_absolute_buffer_->data.allAvailableSensorsAreActive =
             enabled;
         orientation_absolute_buffer_->seqlock.WriteEnd();
       }
       break;
     case CONSUMER_TYPE_MOTION:
       if (motion_buffer_) {
         motion_buffer_->seqlock.WriteBegin();
         motion_buffer_->data.allAvailableSensorsAreActive = enabled;
         motion_buffer_->seqlock.WriteEnd();
       }
       break;
     default:
       NOTREACHED();
   }
 }
 
-}  // namespace content
+}  // namespace device