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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /hal/windows/WindowsSensor.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip |
Add m-esr52 at 52.6.0
Diffstat (limited to 'hal/windows/WindowsSensor.cpp')
-rw-r--r-- | hal/windows/WindowsSensor.cpp | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/hal/windows/WindowsSensor.cpp b/hal/windows/WindowsSensor.cpp new file mode 100644 index 000000000..302ad7c48 --- /dev/null +++ b/hal/windows/WindowsSensor.cpp @@ -0,0 +1,184 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "Hal.h" + +#include <sensorsapi.h> +#include <sensors.h> +#include <portabledevicetypes.h> + +#define MEAN_GRAVITY 9.80665 +#define DEFAULT_SENSOR_POLL 100 + +using namespace mozilla::hal; + +namespace mozilla { +namespace hal_impl { + +static RefPtr<ISensor> sAccelerometer; + +class SensorEvent final : public ISensorEvents { +public: + SensorEvent() : mCount(0) { + } + + // IUnknown interface + + STDMETHODIMP_(ULONG) AddRef() { + return InterlockedIncrement(&mCount); + } + + STDMETHODIMP_(ULONG) Release() { + ULONG count = InterlockedDecrement(&mCount); + if (!count) { + delete this; + return 0; + } + return count; + } + + STDMETHODIMP QueryInterface(REFIID iid, void** ppv) { + if (iid == IID_IUnknown) { + *ppv = static_cast<IUnknown*>(this); + } else if (iid == IID_ISensorEvents) { + *ppv = static_cast<ISensorEvents*>(this); + } else { + return E_NOINTERFACE; + } + AddRef(); + return S_OK; + } + + // ISensorEvents interface + + STDMETHODIMP OnEvent(ISensor *aSensor, REFGUID aId, IPortableDeviceValues *aData) { + return S_OK; + } + + STDMETHODIMP OnLeave(REFSENSOR_ID aId) { + return S_OK; + } + + STDMETHODIMP OnStateChanged(ISensor *aSensor, SensorState state) { + return S_OK; + } + + STDMETHODIMP OnDataUpdated(ISensor *aSensor, ISensorDataReport *aReport) { + PROPVARIANT v; + HRESULT hr; + InfallibleTArray<float> values; + + // X-axis acceleration in g's + hr = aReport->GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_X_G, &v); + if (FAILED(hr)) { + return hr; + } + values.AppendElement(float(-v.dblVal * MEAN_GRAVITY)); + + // Y-axis acceleration in g's + hr = aReport->GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_Y_G, &v); + if (FAILED(hr)) { + return hr; + } + values.AppendElement(float(-v.dblVal * MEAN_GRAVITY)); + + // Z-axis acceleration in g's + hr = aReport->GetSensorValue(SENSOR_DATA_TYPE_ACCELERATION_Z_G, &v); + if (FAILED(hr)) { + return hr; + } + values.AppendElement(float(-v.dblVal * MEAN_GRAVITY)); + + hal::SensorData sdata(hal::SENSOR_ACCELERATION, + PR_Now(), + values, + hal::SENSOR_ACCURACY_UNKNOWN); + hal::NotifySensorChange(sdata); + + return S_OK; + } + +private: + ULONG mCount; +}; + +void +EnableSensorNotifications(SensorType aSensor) +{ + if (aSensor != SENSOR_ACCELERATION) { + return; + } + + if (sAccelerometer) { + return; + } + + RefPtr<ISensorManager> manager; + if (FAILED(CoCreateInstance(CLSID_SensorManager, nullptr, + CLSCTX_INPROC_SERVER, + IID_ISensorManager, + getter_AddRefs(manager)))) { + return; + } + + // accelerometer event + + RefPtr<ISensorCollection> collection; + if (FAILED(manager->GetSensorsByType(SENSOR_TYPE_ACCELEROMETER_3D, + getter_AddRefs(collection)))) { + return; + } + + ULONG count = 0; + collection->GetCount(&count); + if (!count) { + return; + } + + RefPtr<ISensor> sensor; + collection->GetAt(0, getter_AddRefs(sensor)); + if (!sensor) { + return; + } + + // Set report interval to 100ms if possible. + // Default value depends on drivers. + RefPtr<IPortableDeviceValues> values; + if (SUCCEEDED(CoCreateInstance(CLSID_PortableDeviceValues, nullptr, + CLSCTX_INPROC_SERVER, + IID_IPortableDeviceValues, + getter_AddRefs(values)))) { + if (SUCCEEDED(values->SetUnsignedIntegerValue( + SENSOR_PROPERTY_CURRENT_REPORT_INTERVAL, + DEFAULT_SENSOR_POLL))) { + RefPtr<IPortableDeviceValues> returns; + sensor->SetProperties(values, getter_AddRefs(returns)); + } + } + + RefPtr<SensorEvent> event = new SensorEvent(); + RefPtr<ISensorEvents> sensorEvents; + if (FAILED(event->QueryInterface(IID_ISensorEvents, + getter_AddRefs(sensorEvents)))) { + return; + } + + if (FAILED(sensor->SetEventSink(sensorEvents))) { + return; + } + + sAccelerometer = sensor; +} + +void +DisableSensorNotifications(SensorType aSensor) +{ + if (aSensor == SENSOR_ACCELERATION && sAccelerometer) { + sAccelerometer->SetEventSink(nullptr); + sAccelerometer = nullptr; + } +} + +} // hal_impl +} // mozilla |