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// Copyright 2016 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 "services/device/generic_sensor/platform_sensor_provider_win.h"
#include <comdef.h>
#include <objbase.h>
#include <iomanip>
#include "base/bind.h"
#include "base/task/post_task.h"
#include "base/task/task_runner_util.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/threading/thread.h"
#include "services/device/generic_sensor/gravity_fusion_algorithm_using_accelerometer.h"
#include "services/device/generic_sensor/linear_acceleration_fusion_algorithm_using_accelerometer.h"
#include "services/device/generic_sensor/orientation_euler_angles_fusion_algorithm_using_quaternion.h"
#include "services/device/generic_sensor/platform_sensor_fusion.h"
#include "services/device/generic_sensor/platform_sensor_win.h"
namespace device {
PlatformSensorProviderWin::PlatformSensorProviderWin()
: com_sta_task_runner_(base::ThreadPool::CreateCOMSTATaskRunner(
{base::TaskPriority::USER_VISIBLE})) {}
PlatformSensorProviderWin::~PlatformSensorProviderWin() = default;
void PlatformSensorProviderWin::SetSensorManagerForTesting(
Microsoft::WRL::ComPtr<ISensorManager> sensor_manager) {
sensor_manager_ = sensor_manager;
}
scoped_refptr<base::SingleThreadTaskRunner>
PlatformSensorProviderWin::GetComStaTaskRunnerForTesting() {
return com_sta_task_runner_;
}
void PlatformSensorProviderWin::CreateSensorInternal(
mojom::SensorType type,
SensorReadingSharedBuffer* reading_buffer,
CreateSensorCallback callback) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
if (sensor_manager_) {
OnInitSensorManager(type, reading_buffer, std::move(callback));
} else {
com_sta_task_runner_->PostTaskAndReply(
FROM_HERE,
base::BindOnce(&PlatformSensorProviderWin::InitSensorManager,
base::Unretained(this)),
base::BindOnce(&PlatformSensorProviderWin::OnInitSensorManager,
base::Unretained(this), type, reading_buffer,
std::move(callback)));
}
}
void PlatformSensorProviderWin::InitSensorManager() {
DCHECK(com_sta_task_runner_->RunsTasksInCurrentSequence());
HRESULT hr = ::CoCreateInstance(CLSID_SensorManager, nullptr, CLSCTX_ALL,
IID_PPV_ARGS(&sensor_manager_));
if (FAILED(hr)) {
// Only log this error the first time.
static bool logged_failure = false;
if (!logged_failure) {
LOG(ERROR) << "Unable to create instance of SensorManager: "
<< _com_error(hr).ErrorMessage() << " (0x" << std::hex
<< std::uppercase << std::setfill('0') << std::setw(8) << hr
<< ")";
logged_failure = true;
}
}
}
void PlatformSensorProviderWin::OnInitSensorManager(
mojom::SensorType type,
SensorReadingSharedBuffer* reading_buffer,
CreateSensorCallback callback) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
if (!sensor_manager_) {
std::move(callback).Run(nullptr);
return;
}
switch (type) {
// Fusion sensors.
case mojom::SensorType::LINEAR_ACCELERATION: {
auto linear_acceleration_fusion_algorithm = std::make_unique<
LinearAccelerationFusionAlgorithmUsingAccelerometer>();
// If this PlatformSensorFusion object is successfully initialized,
// |callback| will be run with a reference to this object.
PlatformSensorFusion::Create(
reading_buffer, this, std::move(linear_acceleration_fusion_algorithm),
std::move(callback));
break;
}
case mojom::SensorType::GRAVITY: {
auto gravity_fusion_algorithm =
std::make_unique<GravityFusionAlgorithmUsingAccelerometer>();
// If this PlatformSensorFusion object is successfully initialized,
// |callback| will be run with a reference to this object.
PlatformSensorFusion::Create(reading_buffer, this,
std::move(gravity_fusion_algorithm),
std::move(callback));
break;
}
// Try to create low-level sensors by default.
default: {
base::PostTaskAndReplyWithResult(
com_sta_task_runner_.get(), FROM_HERE,
base::BindOnce(&PlatformSensorProviderWin::CreateSensorReader,
base::Unretained(this), type),
base::BindOnce(&PlatformSensorProviderWin::SensorReaderCreated,
base::Unretained(this), type, reading_buffer,
std::move(callback)));
break;
}
}
}
void PlatformSensorProviderWin::SensorReaderCreated(
mojom::SensorType type,
SensorReadingSharedBuffer* reading_buffer,
CreateSensorCallback callback,
std::unique_ptr<PlatformSensorReaderWinBase> sensor_reader) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
if (!sensor_reader) {
// Fallback options for sensors that can be implemented using sensor
// fusion. Note that it is important not to generate a cycle by adding a
// fallback here that depends on one of the other fallbacks provided.
switch (type) {
case mojom::SensorType::ABSOLUTE_ORIENTATION_EULER_ANGLES: {
auto algorithm = std::make_unique<
OrientationEulerAnglesFusionAlgorithmUsingQuaternion>(
true /* absolute */);
PlatformSensorFusion::Create(reading_buffer, this, std::move(algorithm),
std::move(callback));
return;
}
default:
std::move(callback).Run(nullptr);
return;
}
}
scoped_refptr<PlatformSensor> sensor =
new PlatformSensorWin(type, reading_buffer, this, com_sta_task_runner_,
std::move(sensor_reader));
std::move(callback).Run(sensor);
}
std::unique_ptr<PlatformSensorReaderWinBase>
PlatformSensorProviderWin::CreateSensorReader(mojom::SensorType type) {
DCHECK(com_sta_task_runner_->RunsTasksInCurrentSequence());
if (!sensor_manager_)
return nullptr;
return PlatformSensorReaderWin32::Create(type, sensor_manager_);
}
} // namespace device
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