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https://github.com/chararomandroid/android_device_samsung_a20
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universal7885: Inital port to A20/A20e
Addtitionally, Add device-specific trees as well Change-Id: Icbbc31c063b18bce3702d0b208a0aee78148a7c0 Signed-off-by: roynatech2544 <whiteshell2544@naver.com>
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roynatech2544
parent
601b5ef5aa
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169 changed files with 2440 additions and 62 deletions
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/*
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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 ANDROID_CAMERA_METADATA_HELPER_H
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#define ANDROID_CAMERA_METADATA_HELPER_H
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#include "system/camera_metadata.h"
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#include <utils/String8.h>
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#include <utils/Vector.h>
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namespace android {
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/**
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* A convenience wrapper around the C-based camera_metadata_t library.
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*/
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class CameraMetadata {
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public:
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/** Creates an empty object; best used when expecting to acquire contents
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* from elsewhere */
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CameraMetadata();
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/** Creates an object with space for entryCapacity entries, with
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* dataCapacity extra storage */
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CameraMetadata(size_t entryCapacity, size_t dataCapacity = 10);
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~CameraMetadata();
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/** Takes ownership of passed-in buffer */
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CameraMetadata(camera_metadata_t *buffer);
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/** Clones the metadata */
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CameraMetadata(const CameraMetadata &other);
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/**
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* Assignment clones metadata buffer.
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*/
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CameraMetadata &operator=(const CameraMetadata &other);
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CameraMetadata &operator=(const camera_metadata_t *buffer);
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/**
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* Get reference to the underlying metadata buffer. Ownership remains with
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* the CameraMetadata object, but non-const CameraMetadata methods will not
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* work until unlock() is called. Note that the lock has nothing to do with
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* thread-safety, it simply prevents the camera_metadata_t pointer returned
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* here from being accidentally invalidated by CameraMetadata operations.
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*/
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const camera_metadata_t* getAndLock() const;
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/**
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* Unlock the CameraMetadata for use again. After this unlock, the pointer
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* given from getAndLock() may no longer be used. The pointer passed out
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* from getAndLock must be provided to guarantee that the right object is
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* being unlocked.
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*/
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status_t unlock(const camera_metadata_t *buffer) const;
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/**
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* Release a raw metadata buffer to the caller. After this call,
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* CameraMetadata no longer references the buffer, and the caller takes
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* responsibility for freeing the raw metadata buffer (using
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* free_camera_metadata()), or for handing it to another CameraMetadata
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* instance.
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*/
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camera_metadata_t* release();
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/**
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* Clear the metadata buffer and free all storage used by it
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*/
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void clear();
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/**
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* Acquire a raw metadata buffer from the caller. After this call,
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* the caller no longer owns the raw buffer, and must not free or manipulate it.
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* If CameraMetadata already contains metadata, it is freed.
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*/
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void acquire(camera_metadata_t* buffer);
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/**
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* Acquires raw buffer from other CameraMetadata object. After the call, the argument
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* object no longer has any metadata.
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*/
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void acquire(CameraMetadata &other);
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/**
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* Append metadata from another CameraMetadata object.
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*/
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status_t append(const CameraMetadata &other);
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/**
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* Append metadata from a raw camera_metadata buffer
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*/
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status_t append(const camera_metadata* other);
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/**
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* Number of metadata entries.
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*/
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size_t entryCount() const;
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/**
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* Is the buffer empty (no entires)
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*/
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bool isEmpty() const;
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/**
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* Sort metadata buffer for faster find
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*/
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status_t sort();
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/**
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* Update metadata entry. Will create entry if it doesn't exist already, and
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* will reallocate the buffer if insufficient space exists. Overloaded for
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* the various types of valid data.
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*/
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status_t update(uint32_t tag,
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const uint8_t *data, size_t data_count);
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status_t update(uint32_t tag,
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const int32_t *data, size_t data_count);
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status_t update(uint32_t tag,
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const float *data, size_t data_count);
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status_t update(uint32_t tag,
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const int64_t *data, size_t data_count);
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status_t update(uint32_t tag,
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const double *data, size_t data_count);
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status_t update(uint32_t tag,
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const camera_metadata_rational_t *data, size_t data_count);
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status_t update(uint32_t tag,
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const String8 &string);
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status_t update(const camera_metadata_ro_entry &entry);
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template<typename T>
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status_t update(uint32_t tag, Vector<T> data) {
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return update(tag, data.array(), data.size());
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}
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/**
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* Check if a metadata entry exists for a given tag id
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*
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*/
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bool exists(uint32_t tag) const;
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/**
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* Get metadata entry by tag id
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*/
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camera_metadata_entry find(uint32_t tag);
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/**
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* Get metadata entry by tag id, with no editing
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*/
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camera_metadata_ro_entry find(uint32_t tag) const;
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/**
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* Delete metadata entry by tag
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*/
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status_t erase(uint32_t tag);
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/**
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* Swap the underlying camera metadata between this and the other
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* metadata object.
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*/
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void swap(CameraMetadata &other);
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/**
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* Dump contents into FD for debugging. The verbosity levels are
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* 0: Tag entry information only, no data values
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* 1: Level 0 plus at most 16 data values per entry
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* 2: All information
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*
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* The indentation parameter sets the number of spaces to add to the start
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* each line of output.
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*/
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void dump(int fd, int verbosity = 1, int indentation = 0) const;
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private:
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camera_metadata_t *mBuffer;
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volatile char mReserved[3] __attribute__ ((unused));
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mutable bool mLocked;
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/**
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* Check if tag has a given type
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*/
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status_t checkType(uint32_t tag, uint8_t expectedType);
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/**
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* Base update entry method
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*/
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status_t updateImpl(uint32_t tag, const void *data, size_t data_count);
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/**
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* Resize metadata buffer if needed by reallocating it and copying it over.
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*/
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status_t resizeIfNeeded(size_t extraEntries, size_t extraData);
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};
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} // namespace android
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#endif
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