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Diffstat (limited to 'include/camera/CameraBase.h')
-rw-r--r-- | include/camera/CameraBase.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/camera/CameraBase.h b/include/camera/CameraBase.h new file mode 100644 index 0000000..9b08c0f --- /dev/null +++ b/include/camera/CameraBase.h @@ -0,0 +1,117 @@ +/* + * 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; + + 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 |