Igor Murashkin | 44cfcf0 | 2013-03-01 16:22:28 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_BASE_H |
| 18 | #define ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_BASE_H |
| 19 | |
Eino-Ville Talvala | 7b82efe | 2013-07-25 17:12:35 -0700 | [diff] [blame] | 20 | #include "common/CameraDeviceBase.h" |
Igor Murashkin | 44cfcf0 | 2013-03-01 16:22:28 -0800 | [diff] [blame] | 21 | |
| 22 | namespace android { |
| 23 | |
| 24 | class IMemory; |
| 25 | |
Eino-Ville Talvala | 7b82efe | 2013-07-25 17:12:35 -0700 | [diff] [blame] | 26 | class CameraService; |
| 27 | |
Igor Murashkin | 44cfcf0 | 2013-03-01 16:22:28 -0800 | [diff] [blame] | 28 | template <typename TClientBase> |
| 29 | class Camera2ClientBase : |
| 30 | public TClientBase, |
| 31 | public CameraDeviceBase::NotificationListener |
| 32 | { |
| 33 | public: |
| 34 | typedef typename TClientBase::TCamCallbacks TCamCallbacks; |
| 35 | |
| 36 | /** |
| 37 | * Base binder interface (see ICamera/IProCameraUser for details) |
| 38 | */ |
| 39 | virtual status_t connect(const sp<TCamCallbacks>& callbacks); |
| 40 | virtual void disconnect(); |
| 41 | |
| 42 | /** |
| 43 | * Interface used by CameraService |
| 44 | */ |
| 45 | |
| 46 | // TODO: too many params, move into a ClientArgs<T> |
| 47 | Camera2ClientBase(const sp<CameraService>& cameraService, |
| 48 | const sp<TCamCallbacks>& remoteCallback, |
| 49 | const String16& clientPackageName, |
| 50 | int cameraId, |
| 51 | int cameraFacing, |
| 52 | int clientPid, |
| 53 | uid_t clientUid, |
| 54 | int servicePid); |
| 55 | virtual ~Camera2ClientBase(); |
| 56 | |
| 57 | virtual status_t initialize(camera_module_t *module); |
| 58 | virtual status_t dump(int fd, const Vector<String16>& args); |
| 59 | |
| 60 | /** |
| 61 | * CameraDeviceBase::NotificationListener implementation |
| 62 | */ |
| 63 | |
| 64 | virtual void notifyError(int errorCode, int arg1, int arg2); |
| 65 | virtual void notifyShutter(int frameNumber, nsecs_t timestamp); |
| 66 | virtual void notifyAutoFocus(uint8_t newState, int triggerId); |
| 67 | virtual void notifyAutoExposure(uint8_t newState, int triggerId); |
| 68 | virtual void notifyAutoWhitebalance(uint8_t newState, |
| 69 | int triggerId); |
| 70 | |
| 71 | |
| 72 | int getCameraId() const; |
| 73 | const sp<CameraDeviceBase>& |
| 74 | getCameraDevice(); |
| 75 | const sp<CameraService>& |
| 76 | getCameraService(); |
| 77 | |
| 78 | /** |
| 79 | * Interface used by independent components of CameraClient2Base. |
| 80 | */ |
| 81 | |
| 82 | // Simple class to ensure that access to TCamCallbacks is serialized |
| 83 | // by requiring mRemoteCallbackLock to be locked before access to |
| 84 | // mRemoteCallback is possible. |
| 85 | class SharedCameraCallbacks { |
| 86 | public: |
| 87 | class Lock { |
| 88 | public: |
| 89 | Lock(SharedCameraCallbacks &client); |
| 90 | ~Lock(); |
| 91 | sp<TCamCallbacks> &mRemoteCallback; |
| 92 | private: |
| 93 | SharedCameraCallbacks &mSharedClient; |
| 94 | }; |
| 95 | SharedCameraCallbacks(const sp<TCamCallbacks>& client); |
| 96 | SharedCameraCallbacks& operator=(const sp<TCamCallbacks>& client); |
| 97 | void clear(); |
| 98 | private: |
| 99 | sp<TCamCallbacks> mRemoteCallback; |
| 100 | mutable Mutex mRemoteCallbackLock; |
| 101 | } mSharedCameraCallbacks; |
| 102 | |
| 103 | protected: |
| 104 | |
Igor Murashkin | e7ee763 | 2013-06-11 18:10:18 -0700 | [diff] [blame] | 105 | virtual sp<IBinder> asBinderWrapper() { |
| 106 | return IInterface::asBinder(); |
| 107 | } |
| 108 | |
Igor Murashkin | 44cfcf0 | 2013-03-01 16:22:28 -0800 | [diff] [blame] | 109 | virtual status_t dumpDevice(int fd, const Vector<String16>& args); |
| 110 | |
| 111 | /** Binder client interface-related private members */ |
| 112 | |
| 113 | // Mutex that must be locked by methods implementing the binder client |
| 114 | // interface. Ensures serialization between incoming client calls. |
| 115 | // All methods in this class hierarchy that append 'L' to the name assume |
| 116 | // that mBinderSerializationLock is locked when they're called |
| 117 | mutable Mutex mBinderSerializationLock; |
| 118 | |
| 119 | /** CameraDeviceBase instance wrapping HAL2+ entry */ |
| 120 | |
| 121 | sp<CameraDeviceBase> mDevice; |
| 122 | |
| 123 | /** Utility members */ |
| 124 | |
| 125 | // Verify that caller is the owner of the camera |
| 126 | status_t checkPid(const char *checkLocation) const; |
| 127 | |
| 128 | virtual void detachDevice(); |
| 129 | }; |
| 130 | |
| 131 | }; // namespace android |
| 132 | |
| 133 | #endif |