| /* |
| * Copyright (C) 2013 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. |
| */ |
| |
| #ifndef ANDROID_HARDWARE_CAMERA_BASE_H |
| #define ANDROID_HARDWARE_CAMERA_BASE_H |
| |
| #include <utils/Mutex.h> |
| #include <camera/ICameraService.h> |
| |
| struct camera_frame_metadata; |
| |
| namespace android { |
| |
| struct CameraInfo { |
| /** |
| * The direction that the camera faces to. It should be CAMERA_FACING_BACK |
| * or CAMERA_FACING_FRONT. |
| */ |
| int facing; |
| |
| /** |
| * The orientation of the camera image. The value is the angle that the |
| * camera image needs to be rotated clockwise so it shows correctly on the |
| * display in its natural orientation. It should be 0, 90, 180, or 270. |
| * |
| * For example, suppose a device has a naturally tall screen. The |
| * back-facing camera sensor is mounted in landscape. You are looking at |
| * the screen. If the top side of the camera sensor is aligned with the |
| * right edge of the screen in natural orientation, the value should be |
| * 90. If the top side of a front-facing camera sensor is aligned with the |
| * right of the screen, the value should be 270. |
| */ |
| int orientation; |
| }; |
| |
| template <typename TCam> |
| struct CameraTraits { |
| }; |
| |
| template <typename TCam, typename TCamTraits = CameraTraits<TCam> > |
| class CameraBase : public IBinder::DeathRecipient |
| { |
| public: |
| typedef typename TCamTraits::TCamListener TCamListener; |
| typedef typename TCamTraits::TCamUser TCamUser; |
| typedef typename TCamTraits::TCamCallbacks TCamCallbacks; |
| typedef typename TCamTraits::TCamConnectService TCamConnectService; |
| |
| static sp<TCam> connect(int cameraId, |
| const String16& clientPackageName, |
| int clientUid); |
| virtual void disconnect(); |
| |
| void setListener(const sp<TCamListener>& listener); |
| |
| static int getNumberOfCameras(); |
| |
| static status_t getCameraInfo(int cameraId, |
| /*out*/ |
| struct CameraInfo* cameraInfo); |
| |
| static status_t addServiceListener( |
| const sp<ICameraServiceListener>& listener); |
| |
| static status_t removeServiceListener( |
| const sp<ICameraServiceListener>& listener); |
| |
| sp<TCamUser> remote(); |
| |
| // Status is set to 'UNKNOWN_ERROR' after successful (re)connection |
| status_t getStatus(); |
| |
| protected: |
| CameraBase(int cameraId); |
| virtual ~CameraBase(); |
| |
| //////////////////////////////////////////////////////// |
| // TCamCallbacks implementation |
| //////////////////////////////////////////////////////// |
| virtual void notifyCallback(int32_t msgType, int32_t ext, |
| int32_t ext2); |
| |
| //////////////////////////////////////////////////////// |
| // Common instance variables |
| //////////////////////////////////////////////////////// |
| Mutex mLock; |
| |
| virtual void binderDied(const wp<IBinder>& who); |
| |
| // helper function to obtain camera service handle |
| static const sp<ICameraService>& getCameraService(); |
| |
| sp<TCamUser> mCamera; |
| status_t mStatus; |
| |
| sp<TCamListener> mListener; |
| |
| const int mCameraId; |
| |
| typedef CameraBase<TCam> CameraBaseT; |
| }; |
| |
| }; // namespace android |
| |
| #endif |