| /* |
| * Copyright (C) 2012 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. |
| */ |
| |
| // #define LOG_NDEBUG 0 |
| |
| #define LOG_TAG "Camera2-Metadata" |
| #include <utils/Log.h> |
| #include <utils/Errors.h> |
| |
| #include <camera/CameraMetadata.h> |
| |
| namespace android { |
| |
| CameraMetadata::CameraMetadata() : |
| mBuffer(NULL), mLocked(false) { |
| } |
| |
| CameraMetadata::CameraMetadata(size_t entryCapacity, size_t dataCapacity) : |
| mLocked(false) |
| { |
| mBuffer = allocate_camera_metadata(entryCapacity, dataCapacity); |
| } |
| |
| CameraMetadata::CameraMetadata(const CameraMetadata &other) : |
| mLocked(false) { |
| mBuffer = clone_camera_metadata(other.mBuffer); |
| } |
| |
| CameraMetadata::CameraMetadata(camera_metadata_t *buffer) : |
| mBuffer(NULL), mLocked(false) { |
| acquire(buffer); |
| } |
| |
| CameraMetadata &CameraMetadata::operator=(const CameraMetadata &other) { |
| return operator=(other.mBuffer); |
| } |
| |
| CameraMetadata &CameraMetadata::operator=(const camera_metadata_t *buffer) { |
| if (mLocked) { |
| ALOGE("%s: Assignment to a locked CameraMetadata!", __FUNCTION__); |
| return *this; |
| } |
| |
| if (CC_LIKELY(buffer != mBuffer)) { |
| camera_metadata_t *newBuffer = clone_camera_metadata(buffer); |
| clear(); |
| mBuffer = newBuffer; |
| } |
| return *this; |
| } |
| |
| CameraMetadata::~CameraMetadata() { |
| mLocked = false; |
| clear(); |
| } |
| |
| const camera_metadata_t* CameraMetadata::getAndLock() { |
| mLocked = true; |
| return mBuffer; |
| } |
| |
| status_t CameraMetadata::unlock(const camera_metadata_t *buffer) { |
| if (!mLocked) { |
| ALOGE("%s: Can't unlock a non-locked CameraMetadata!", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if (buffer != mBuffer) { |
| ALOGE("%s: Can't unlock CameraMetadata with wrong pointer!", |
| __FUNCTION__); |
| return BAD_VALUE; |
| } |
| mLocked = false; |
| return OK; |
| } |
| |
| camera_metadata_t* CameraMetadata::release() { |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return NULL; |
| } |
| camera_metadata_t *released = mBuffer; |
| mBuffer = NULL; |
| return released; |
| } |
| |
| void CameraMetadata::clear() { |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return; |
| } |
| if (mBuffer) { |
| free_camera_metadata(mBuffer); |
| mBuffer = NULL; |
| } |
| } |
| |
| void CameraMetadata::acquire(camera_metadata_t *buffer) { |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return; |
| } |
| clear(); |
| mBuffer = buffer; |
| |
| ALOGE_IF(validate_camera_metadata_structure(mBuffer, /*size*/NULL) != OK, |
| "%s: Failed to validate metadata structure %p", |
| __FUNCTION__, buffer); |
| } |
| |
| void CameraMetadata::acquire(CameraMetadata &other) { |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return; |
| } |
| acquire(other.release()); |
| } |
| |
| status_t CameraMetadata::append(const CameraMetadata &other) { |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| return append_camera_metadata(mBuffer, other.mBuffer); |
| } |
| |
| size_t CameraMetadata::entryCount() const { |
| return (mBuffer == NULL) ? 0 : |
| get_camera_metadata_entry_count(mBuffer); |
| } |
| |
| bool CameraMetadata::isEmpty() const { |
| return entryCount() == 0; |
| } |
| |
| status_t CameraMetadata::sort() { |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| return sort_camera_metadata(mBuffer); |
| } |
| |
| status_t CameraMetadata::checkType(uint32_t tag, uint8_t expectedType) { |
| int tagType = get_camera_metadata_tag_type(tag); |
| if ( CC_UNLIKELY(tagType == -1)) { |
| ALOGE("Update metadata entry: Unknown tag %d", tag); |
| return INVALID_OPERATION; |
| } |
| if ( CC_UNLIKELY(tagType != expectedType) ) { |
| ALOGE("Mismatched tag type when updating entry %s (%d) of type %s; " |
| "got type %s data instead ", |
| get_camera_metadata_tag_name(tag), tag, |
| camera_metadata_type_names[tagType], |
| camera_metadata_type_names[expectedType]); |
| return INVALID_OPERATION; |
| } |
| return OK; |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const int32_t *data, size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_INT32)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)data, data_count); |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const uint8_t *data, size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_BYTE)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)data, data_count); |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const float *data, size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_FLOAT)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)data, data_count); |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const int64_t *data, size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_INT64)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)data, data_count); |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const double *data, size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_DOUBLE)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)data, data_count); |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const camera_metadata_rational_t *data, size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_RATIONAL)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)data, data_count); |
| } |
| |
| status_t CameraMetadata::update(uint32_t tag, |
| const String8 &string) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| if ( (res = checkType(tag, TYPE_BYTE)) != OK) { |
| return res; |
| } |
| return updateImpl(tag, (const void*)string.string(), string.size()); |
| } |
| |
| status_t CameraMetadata::updateImpl(uint32_t tag, const void *data, |
| size_t data_count) { |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| int type = get_camera_metadata_tag_type(tag); |
| if (type == -1) { |
| ALOGE("%s: Tag %d not found", __FUNCTION__, tag); |
| return BAD_VALUE; |
| } |
| size_t data_size = calculate_camera_metadata_entry_data_size(type, |
| data_count); |
| |
| res = resizeIfNeeded(1, data_size); |
| |
| if (res == OK) { |
| camera_metadata_entry_t entry; |
| res = find_camera_metadata_entry(mBuffer, tag, &entry); |
| if (res == NAME_NOT_FOUND) { |
| res = add_camera_metadata_entry(mBuffer, |
| tag, data, data_count); |
| } else if (res == OK) { |
| res = update_camera_metadata_entry(mBuffer, |
| entry.index, data, data_count, NULL); |
| } |
| } |
| |
| if (res != OK) { |
| ALOGE("%s: Unable to update metadata entry %s.%s (%x): %s (%d)", |
| __FUNCTION__, get_camera_metadata_section_name(tag), |
| get_camera_metadata_tag_name(tag), tag, strerror(-res), res); |
| } |
| |
| IF_ALOGV() { |
| ALOGE_IF(validate_camera_metadata_structure(mBuffer, /*size*/NULL) != |
| OK, |
| |
| "%s: Failed to validate metadata structure after update %p", |
| __FUNCTION__, mBuffer); |
| } |
| |
| return res; |
| } |
| |
| bool CameraMetadata::exists(uint32_t tag) const { |
| camera_metadata_ro_entry entry; |
| return find_camera_metadata_ro_entry(mBuffer, tag, &entry) == 0; |
| } |
| |
| camera_metadata_entry_t CameraMetadata::find(uint32_t tag) { |
| status_t res; |
| camera_metadata_entry entry; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| entry.count = 0; |
| return entry; |
| } |
| res = find_camera_metadata_entry(mBuffer, tag, &entry); |
| if (CC_UNLIKELY( res != OK )) { |
| entry.count = 0; |
| entry.data.u8 = NULL; |
| } |
| return entry; |
| } |
| |
| camera_metadata_ro_entry_t CameraMetadata::find(uint32_t tag) const { |
| status_t res; |
| camera_metadata_ro_entry entry; |
| res = find_camera_metadata_ro_entry(mBuffer, tag, &entry); |
| if (CC_UNLIKELY( res != OK )) { |
| entry.count = 0; |
| entry.data.u8 = NULL; |
| } |
| return entry; |
| } |
| |
| status_t CameraMetadata::erase(uint32_t tag) { |
| camera_metadata_entry_t entry; |
| status_t res; |
| if (mLocked) { |
| ALOGE("%s: CameraMetadata is locked", __FUNCTION__); |
| return INVALID_OPERATION; |
| } |
| res = find_camera_metadata_entry(mBuffer, tag, &entry); |
| if (res == NAME_NOT_FOUND) { |
| return OK; |
| } else if (res != OK) { |
| ALOGE("%s: Error looking for entry %s.%s (%x): %s %d", |
| __FUNCTION__, |
| get_camera_metadata_section_name(tag), |
| get_camera_metadata_tag_name(tag), tag, strerror(-res), res); |
| return res; |
| } |
| res = delete_camera_metadata_entry(mBuffer, entry.index); |
| if (res != OK) { |
| ALOGE("%s: Error deleting entry %s.%s (%x): %s %d", |
| __FUNCTION__, |
| get_camera_metadata_section_name(tag), |
| get_camera_metadata_tag_name(tag), tag, strerror(-res), res); |
| } |
| return res; |
| } |
| |
| void CameraMetadata::dump(int fd, int verbosity, int indentation) const { |
| dump_indented_camera_metadata(mBuffer, fd, verbosity, indentation); |
| } |
| |
| status_t CameraMetadata::resizeIfNeeded(size_t extraEntries, size_t extraData) { |
| if (mBuffer == NULL) { |
| mBuffer = allocate_camera_metadata(extraEntries * 2, extraData * 2); |
| if (mBuffer == NULL) { |
| ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__); |
| return NO_MEMORY; |
| } |
| } else { |
| size_t currentEntryCount = get_camera_metadata_entry_count(mBuffer); |
| size_t currentEntryCap = get_camera_metadata_entry_capacity(mBuffer); |
| size_t newEntryCount = currentEntryCount + |
| extraEntries; |
| newEntryCount = (newEntryCount > currentEntryCap) ? |
| newEntryCount * 2 : currentEntryCap; |
| |
| size_t currentDataCount = get_camera_metadata_data_count(mBuffer); |
| size_t currentDataCap = get_camera_metadata_data_capacity(mBuffer); |
| size_t newDataCount = currentDataCount + |
| extraData; |
| newDataCount = (newDataCount > currentDataCap) ? |
| newDataCount * 2 : currentDataCap; |
| |
| if (newEntryCount > currentEntryCap || |
| newDataCount > currentDataCap) { |
| camera_metadata_t *oldBuffer = mBuffer; |
| mBuffer = allocate_camera_metadata(newEntryCount, |
| newDataCount); |
| if (mBuffer == NULL) { |
| ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__); |
| return NO_MEMORY; |
| } |
| append_camera_metadata(mBuffer, oldBuffer); |
| free_camera_metadata(oldBuffer); |
| } |
| } |
| return OK; |
| } |
| |
| }; // namespace android |