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

content/browser/device_sensors/data_fetcher_shared_memory_win.cc

Index: content/browser/device_sensors/data_fetcher_shared_memory_win.cc
diff --git a/content/browser/device_sensors/data_fetcher_shared_memory_win.cc b/content/browser/device_sensors/data_fetcher_shared_memory_win.cc
deleted file mode 100644
index b2a6ad9f61d3782a617840cbbbabad7876c84b05..0000000000000000000000000000000000000000
--- a/content/browser/device_sensors/data_fetcher_shared_memory_win.cc
+++ /dev/null
@@ -1,497 +0,0 @@
-// 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 <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) {
-  DCHECK(buffer);
-  buffer->seqlock.WriteBegin();
-  buffer->data.value = lux;
-  buffer->seqlock.WriteEnd();
-}
-
-}  // namespace
-
-
-namespace content {
-
-class DataFetcherSharedMemory::SensorEventSink
-    : public ISensorEvents, public base::win::IUnknownImpl {
- public:
-  SensorEventSink() {}
-  ~SensorEventSink() override {}
-
-  // IUnknown interface
-  ULONG STDMETHODCALLTYPE AddRef() override {
-    return IUnknownImpl::AddRef();
-  }
-
-  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 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;
-
-  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) {}
-  ~SensorEventSinkOrientation() override {}
-
- protected:
-  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_Y_DEGREES, new_data, &gamma,
-        &has_gamma);
-    GetSensorValue(SENSOR_DATA_TYPE_TILT_Z_DEGREES, new_data, &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;
-      buffer_->data.allAvailableSensorsAreActive = true;
-      buffer_->seqlock.WriteEnd();
-    }
-
-    return true;
-  }
-
- private:
-  DeviceOrientationHardwareBuffer* const buffer_;
-
-  DISALLOW_COPY_AND_ASSIGN(SensorEventSinkOrientation);
-};
-
-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 {
-
-    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);
-      GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_Y_G, new_data,
-          &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);
-
-      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);
-      GetSensorValue(SENSOR_DATA_TYPE_ANGULAR_VELOCITY_Y_DEGREES_PER_SECOND,
-          new_data, &beta, &has_beta);
-      GetSensorValue(SENSOR_DATA_TYPE_ANGULAR_VELOCITY_Z_DEGREES_PER_SECOND,
-          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;
-        buffer_->seqlock.WriteEnd();
-      }
-    }
-
-    return true;
-  }
-
- private:
-  DeviceMotionHardwareBuffer* const buffer_;
-
-  DISALLOW_COPY_AND_ASSIGN(SensorEventSinkMotion);
-};
-
-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 {
-    double lux;
-    bool has_lux;
-
-    GetSensorValue(SENSOR_DATA_TYPE_LIGHT_LEVEL_LUX, new_data, &lux, &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::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);
-      }
-      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;
-        }
-        // 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;
-    default:
-      NOTREACHED();
-  }
-  return false;
-}
-
-bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
-  DisableSensors(consumer_type);
-  switch (consumer_type) {
-    case CONSUMER_TYPE_ORIENTATION:
-      SetBufferAvailableState(consumer_type, false);
-      orientation_buffer_ = nullptr;
-      return true;
-    case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
-      SetBufferAvailableState(consumer_type, false);
-      orientation_absolute_buffer_ = nullptr;
-      return true;
-    case CONSUMER_TYPE_MOTION:
-      SetBufferAvailableState(consumer_type, false);
-      motion_buffer_ = nullptr;
-      return true;
-    case CONSUMER_TYPE_LIGHT:
-      SetLightBuffer(light_buffer_, -1);
-      light_buffer_ = nullptr;
-      return true;
-    default:
-      NOTREACHED();
-  }
-  return false;
-}
-
-bool DataFetcherSharedMemory::RegisterForSensor(
-    REFSENSOR_TYPE_ID sensor_type,
-    ISensor** sensor,
-    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());
-
-  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()))) {
-      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());
-  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) {
-    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();
-      }
-      break;
-    case CONSUMER_TYPE_MOTION:
-      if (sensor_accelerometer_.get()) {
-        sensor_accelerometer_->SetEventSink(nullptr);
-        sensor_accelerometer_.Release();
-      }
-      if (sensor_gyrometer_.get()) {
-        sensor_gyrometer_->SetEventSink(nullptr);
-        sensor_gyrometer_.Release();
-      }
-      break;
-    case CONSUMER_TYPE_LIGHT:
-      if (sensor_light_.get()) {
-        sensor_light_->SetEventSink(nullptr);
-        sensor_light_.Release();
-      }
-      break;
-    default:
-      NOTREACHED();
-  }
-}
-
-void DataFetcherSharedMemory::SetBufferAvailableState(
-    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