67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CAMERA_H_
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#define CAMERA_H_
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#include <pthread.h>
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#include <hardware/hardware.h>
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#include <hardware/camera3.h>
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namespace default_camera_hal {
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// Camera represents a physical camera on a device.
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// This is constructed when the HAL module is loaded, one per physical camera.
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// It is opened by the framework, and must be closed before it can be opened
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// again.
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class Camera {
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public:
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// id is used to distinguish cameras. 0 <= id < NUM_CAMERAS.
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// module is a handle to the HAL module, used when the device is opened.
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Camera(int id);
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~Camera();
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// Common Camera Device Operations (see <hardware/camera_common.h>)
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int open(const hw_module_t *module, hw_device_t **device);
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int close();
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// Camera v3 Device Operations (see <hardware/camera3.h>)
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int initialize(const camera3_callback_ops_t *callback_ops);
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int configureStreams(camera3_stream_configuration_t *stream_list);
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int registerStreamBuffers(const camera3_stream_buffer_set_t *buf_set);
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const camera_metadata_t *constructDefaultRequestSettings(int type);
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int processCaptureRequest(camera3_capture_request_t *request);
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void getMetadataVendorTagOps(vendor_tag_query_ops_t *ops);
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void dump(int fd);
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// Camera device handle returned to framework for use
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camera3_device_t mDevice;
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private:
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// Identifier used by framework to distinguish cameras
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const int mId;
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// Busy flag indicates camera is in use
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bool mBusy;
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// Camera device operations handle shared by all devices
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const static camera3_device_ops_t sOps;
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// Methods used to call back into the framework
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const camera3_callback_ops_t *mCallbackOps;
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// Lock protecting the Camera object for modifications
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pthread_mutex_t mMutex;
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};
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} // namespace default_camera_hal
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#endif // CAMERA_H_
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