a1c41e13b5
The purpose is to let face unlock always get the camera successfully. What happened was the camera applications may have opened the camera in onResume under the lock screen. This API lets face unlock take the camera from the camera application. A new permission will be added, so other applicatoins won't be able to take the camera from the face unlock. bug:5584464 Change-Id: Ib3d9dcbc2161815b68db42327dc01148453704c6
114 lines
3.9 KiB
C++
114 lines
3.9 KiB
C++
/*
|
|
**
|
|
** Copyright 2008, The Android Open Source Project
|
|
**
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
**
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
**
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <binder/Parcel.h>
|
|
#include <binder/IPCThreadState.h>
|
|
#include <binder/IServiceManager.h>
|
|
|
|
#include <camera/ICameraService.h>
|
|
|
|
namespace android {
|
|
|
|
class BpCameraService: public BpInterface<ICameraService>
|
|
{
|
|
public:
|
|
BpCameraService(const sp<IBinder>& impl)
|
|
: BpInterface<ICameraService>(impl)
|
|
{
|
|
}
|
|
|
|
// get number of cameras available
|
|
virtual int32_t getNumberOfCameras()
|
|
{
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
|
|
remote()->transact(BnCameraService::GET_NUMBER_OF_CAMERAS, data, &reply);
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// get information about a camera
|
|
virtual status_t getCameraInfo(int cameraId,
|
|
struct CameraInfo* cameraInfo) {
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
|
|
data.writeInt32(cameraId);
|
|
remote()->transact(BnCameraService::GET_CAMERA_INFO, data, &reply);
|
|
cameraInfo->facing = reply.readInt32();
|
|
cameraInfo->orientation = reply.readInt32();
|
|
return reply.readInt32();
|
|
}
|
|
|
|
// connect to camera service
|
|
virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient, int cameraId,
|
|
bool force, bool keep)
|
|
{
|
|
Parcel data, reply;
|
|
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
|
|
data.writeStrongBinder(cameraClient->asBinder());
|
|
data.writeInt32(cameraId);
|
|
data.writeInt32(force);
|
|
data.writeInt32(keep);
|
|
remote()->transact(BnCameraService::CONNECT, data, &reply);
|
|
return interface_cast<ICamera>(reply.readStrongBinder());
|
|
}
|
|
};
|
|
|
|
IMPLEMENT_META_INTERFACE(CameraService, "android.hardware.ICameraService");
|
|
|
|
// ----------------------------------------------------------------------
|
|
|
|
status_t BnCameraService::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
switch(code) {
|
|
case GET_NUMBER_OF_CAMERAS: {
|
|
CHECK_INTERFACE(ICameraService, data, reply);
|
|
reply->writeInt32(getNumberOfCameras());
|
|
return NO_ERROR;
|
|
} break;
|
|
case GET_CAMERA_INFO: {
|
|
CHECK_INTERFACE(ICameraService, data, reply);
|
|
CameraInfo cameraInfo;
|
|
memset(&cameraInfo, 0, sizeof(cameraInfo));
|
|
status_t result = getCameraInfo(data.readInt32(), &cameraInfo);
|
|
reply->writeInt32(cameraInfo.facing);
|
|
reply->writeInt32(cameraInfo.orientation);
|
|
reply->writeInt32(result);
|
|
return NO_ERROR;
|
|
} break;
|
|
case CONNECT: {
|
|
CHECK_INTERFACE(ICameraService, data, reply);
|
|
sp<ICameraClient> cameraClient = interface_cast<ICameraClient>(data.readStrongBinder());
|
|
const int cameraId = data.readInt32();
|
|
const int force = data.readInt32();
|
|
const int keep = data.readInt32();
|
|
sp<ICamera> camera = connect(cameraClient, cameraId, force, keep);
|
|
reply->writeStrongBinder(camera->asBinder());
|
|
return NO_ERROR;
|
|
} break;
|
|
default:
|
|
return BBinder::onTransact(code, data, reply, flags);
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|