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/*
* Copyright (C) 2016 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 CAMERA_COMMON_1_0_CAMERAMODULE_H
#define CAMERA_COMMON_1_0_CAMERAMODULE_H
#include <string>
#include <unordered_set>
#include <hardware/camera.h>
#include <utils/Mutex.h>
#include <utils/KeyedVector.h>
#include <utils/RefBase.h>
#include "CameraMetadata.h"
namespace android {
namespace hardware {
namespace camera {
namespace common {
namespace V1_0 {
namespace helper {
/**
* A wrapper class for HAL camera module.
*
* This class wraps camera_module_t returned from HAL to provide a wrapped
* get_camera_info implementation which CameraService generates some
* camera characteristics keys defined in newer HAL version on an older HAL.
*/
class CameraModule : public RefBase {
public:
explicit CameraModule(camera_module_t *module);
virtual ~CameraModule();
// Must be called after construction
// Returns OK on success, NO_INIT on failure
int init();
int getCameraDeviceVersion(int cameraId, uint32_t* version);
int getCameraInfo(int cameraId, struct camera_info *info);
int getDeviceVersion(int cameraId);
int getNumberOfCameras(void);
int open(const char* id, struct hw_device_t** device);
bool isOpenLegacyDefined() const;
int openLegacy(const char* id, uint32_t halVersion, struct hw_device_t** device);
int setCallbacks(const camera_module_callbacks_t *callbacks);
bool isVendorTagDefined() const;
void getVendorTagOps(vendor_tag_ops_t* ops);
bool isSetTorchModeSupported() const;
int setTorchMode(const char* camera_id, bool enable);
uint16_t getModuleApiVersion() const;
const char* getModuleName() const;
uint16_t getHalApiVersion() const;
const char* getModuleAuthor() const;
// Only used by CameraModuleFixture native test. Do NOT use elsewhere.
void *getDso();
// Only used by CameraProvider
void removeCamera(int cameraId);
int getPhysicalCameraInfo(int physicalCameraId, camera_metadata_t **physicalInfo);
int isStreamCombinationSupported(int cameraId, camera_stream_combination_t *streams);
void notifyDeviceStateChange(uint64_t deviceState);
static bool isLogicalMultiCamera(
const common::V1_0::helper::CameraMetadata& metadata,
std::unordered_set<std::string>* physicalCameraIds);
private:
// Derive camera characteristics keys defined after HAL device version
static void deriveCameraCharacteristicsKeys(uint32_t deviceVersion, CameraMetadata &chars);
// Helper function to append available[request|result|chars]Keys
static void appendAvailableKeys(CameraMetadata &chars,
int32_t keyTag, const Vector<int32_t>& appendKeys);
status_t filterOpenErrorCode(status_t err);
camera_module_t *mModule;
int mNumberOfCameras;
KeyedVector<int, camera_info> mCameraInfoMap;
KeyedVector<int, int> mDeviceVersionMap;
KeyedVector<int, camera_metadata_t*> mPhysicalCameraInfoMap;
Mutex mCameraInfoLock;
};
} // namespace helper
} // namespace V1_0
} // namespace common
} // namespace camera
} // namespace hardware
} // namespace android
#endif
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