684 lines
22 KiB
C++
684 lines
22 KiB
C++
/*
|
|
* 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>
|
|
#include <binder/Parcel.h>
|
|
|
|
namespace android {
|
|
|
|
#define ALIGN_TO(val, alignment) \
|
|
(((uintptr_t)(val) + ((alignment) - 1)) & ~((alignment) - 1))
|
|
|
|
typedef Parcel::WritableBlob WritableBlob;
|
|
typedef Parcel::ReadableBlob ReadableBlob;
|
|
|
|
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() const {
|
|
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) {
|
|
return append(other.mBuffer);
|
|
}
|
|
|
|
status_t CameraMetadata::append(const camera_metadata_t* other) {
|
|
if (mLocked) {
|
|
ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
|
|
return INVALID_OPERATION;
|
|
}
|
|
size_t extraEntries = get_camera_metadata_entry_count(other);
|
|
size_t extraData = get_camera_metadata_data_count(other);
|
|
resizeIfNeeded(extraEntries, extraData);
|
|
|
|
return append_camera_metadata(mBuffer, other);
|
|
}
|
|
|
|
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;
|
|
}
|
|
// string.size() doesn't count the null termination character.
|
|
return updateImpl(tag, (const void*)string.string(), string.size() + 1);
|
|
}
|
|
|
|
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;
|
|
}
|
|
// Safety check - ensure that data isn't pointing to this metadata, since
|
|
// that would get invalidated if a resize is needed
|
|
size_t bufferSize = get_camera_metadata_size(mBuffer);
|
|
uintptr_t bufAddr = reinterpret_cast<uintptr_t>(mBuffer);
|
|
uintptr_t dataAddr = reinterpret_cast<uintptr_t>(data);
|
|
if (dataAddr > bufAddr && dataAddr < (bufAddr + bufferSize)) {
|
|
ALOGE("%s: Update attempted with data from the same metadata buffer!",
|
|
__FUNCTION__);
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
status_t CameraMetadata::readFromParcel(const Parcel& data,
|
|
camera_metadata_t** out) {
|
|
|
|
status_t err = OK;
|
|
|
|
camera_metadata_t* metadata = NULL;
|
|
|
|
if (out) {
|
|
*out = NULL;
|
|
}
|
|
|
|
// See CameraMetadata::writeToParcel for parcel data layout diagram and explanation.
|
|
// arg0 = blobSize (int32)
|
|
int32_t blobSizeTmp = -1;
|
|
if ((err = data.readInt32(&blobSizeTmp)) != OK) {
|
|
ALOGE("%s: Failed to read metadata size (error %d %s)",
|
|
__FUNCTION__, err, strerror(-err));
|
|
return err;
|
|
}
|
|
const size_t blobSize = static_cast<size_t>(blobSizeTmp);
|
|
const size_t alignment = get_camera_metadata_alignment();
|
|
|
|
// Special case: zero blob size means zero sized (NULL) metadata.
|
|
if (blobSize == 0) {
|
|
ALOGV("%s: Read 0-sized metadata", __FUNCTION__);
|
|
return OK;
|
|
}
|
|
|
|
if (blobSize <= alignment) {
|
|
ALOGE("%s: metadata blob is malformed, blobSize(%zu) should be larger than alignment(%zu)",
|
|
__FUNCTION__, blobSize, alignment);
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
const size_t metadataSize = blobSize - alignment;
|
|
|
|
// NOTE: this doesn't make sense to me. shouldn't the blob
|
|
// know how big it is? why do we have to specify the size
|
|
// to Parcel::readBlob ?
|
|
ReadableBlob blob;
|
|
// arg1 = metadata (blob)
|
|
do {
|
|
if ((err = data.readBlob(blobSize, &blob)) != OK) {
|
|
ALOGE("%s: Failed to read metadata blob (sized %zu). Possible "
|
|
" serialization bug. Error %d %s",
|
|
__FUNCTION__, blobSize, err, strerror(-err));
|
|
break;
|
|
}
|
|
|
|
// arg2 = offset (blob)
|
|
// Must be after blob since we don't know offset until after writeBlob.
|
|
int32_t offsetTmp;
|
|
if ((err = data.readInt32(&offsetTmp)) != OK) {
|
|
ALOGE("%s: Failed to read metadata offsetTmp (error %d %s)",
|
|
__FUNCTION__, err, strerror(-err));
|
|
break;
|
|
}
|
|
const size_t offset = static_cast<size_t>(offsetTmp);
|
|
if (offset >= alignment) {
|
|
ALOGE("%s: metadata offset(%zu) should be less than alignment(%zu)",
|
|
__FUNCTION__, blobSize, alignment);
|
|
err = BAD_VALUE;
|
|
break;
|
|
}
|
|
|
|
const uintptr_t metadataStart = reinterpret_cast<uintptr_t>(blob.data()) + offset;
|
|
const camera_metadata_t* tmp =
|
|
reinterpret_cast<const camera_metadata_t*>(metadataStart);
|
|
ALOGV("%s: alignment is: %zu, metadata start: %p, offset: %zu",
|
|
__FUNCTION__, alignment, tmp, offset);
|
|
metadata = allocate_copy_camera_metadata_checked(tmp, metadataSize);
|
|
if (metadata == NULL) {
|
|
// We consider that allocation only fails if the validation
|
|
// also failed, therefore the readFromParcel was a failure.
|
|
ALOGE("%s: metadata allocation and copy failed", __FUNCTION__);
|
|
err = BAD_VALUE;
|
|
}
|
|
} while(0);
|
|
blob.release();
|
|
|
|
if (out) {
|
|
ALOGV("%s: Set out metadata to %p", __FUNCTION__, metadata);
|
|
*out = metadata;
|
|
} else if (metadata != NULL) {
|
|
ALOGV("%s: Freed camera metadata at %p", __FUNCTION__, metadata);
|
|
free_camera_metadata(metadata);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
status_t CameraMetadata::writeToParcel(Parcel& data,
|
|
const camera_metadata_t* metadata) {
|
|
status_t res = OK;
|
|
|
|
/**
|
|
* Below is the camera metadata parcel layout:
|
|
*
|
|
* |--------------------------------------------|
|
|
* | arg0: blobSize |
|
|
* | (length = 4) |
|
|
* |--------------------------------------------|<--Skip the rest if blobSize == 0.
|
|
* | |
|
|
* | |
|
|
* | arg1: blob |
|
|
* | (length = variable, see arg1 layout below) |
|
|
* | |
|
|
* | |
|
|
* |--------------------------------------------|
|
|
* | arg2: offset |
|
|
* | (length = 4) |
|
|
* |--------------------------------------------|
|
|
*/
|
|
|
|
// arg0 = blobSize (int32)
|
|
if (metadata == NULL) {
|
|
// Write zero blobSize for null metadata.
|
|
return data.writeInt32(0);
|
|
}
|
|
|
|
/**
|
|
* Always make the blob size sufficiently larger, as we need put alignment
|
|
* padding and metadata into the blob. Since we don't know the alignment
|
|
* offset before writeBlob. Then write the metadata to aligned offset.
|
|
*/
|
|
const size_t metadataSize = get_camera_metadata_compact_size(metadata);
|
|
const size_t alignment = get_camera_metadata_alignment();
|
|
const size_t blobSize = metadataSize + alignment;
|
|
res = data.writeInt32(static_cast<int32_t>(blobSize));
|
|
if (res != OK) {
|
|
return res;
|
|
}
|
|
|
|
size_t offset = 0;
|
|
/**
|
|
* arg1 = metadata (blob).
|
|
*
|
|
* The blob size is the sum of front padding size, metadata size and back padding
|
|
* size, which is equal to metadataSize + alignment.
|
|
*
|
|
* The blob layout is:
|
|
* |------------------------------------|<----Start address of the blob (unaligned).
|
|
* | front padding |
|
|
* | (size = offset) |
|
|
* |------------------------------------|<----Aligned start address of metadata.
|
|
* | |
|
|
* | |
|
|
* | metadata |
|
|
* | (size = metadataSize) |
|
|
* | |
|
|
* | |
|
|
* |------------------------------------|
|
|
* | back padding |
|
|
* | (size = alignment - offset) |
|
|
* |------------------------------------|<----End address of blob.
|
|
* (Blob start address + blob size).
|
|
*/
|
|
WritableBlob blob;
|
|
do {
|
|
res = data.writeBlob(blobSize, false, &blob);
|
|
if (res != OK) {
|
|
break;
|
|
}
|
|
const uintptr_t metadataStart = ALIGN_TO(blob.data(), alignment);
|
|
offset = metadataStart - reinterpret_cast<uintptr_t>(blob.data());
|
|
ALOGV("%s: alignment is: %zu, metadata start: %p, offset: %zu",
|
|
__FUNCTION__, alignment,
|
|
reinterpret_cast<const void *>(metadataStart), offset);
|
|
copy_camera_metadata(reinterpret_cast<void*>(metadataStart), metadataSize, metadata);
|
|
|
|
// Not too big of a problem since receiving side does hard validation
|
|
// Don't check the size since the compact size could be larger
|
|
if (validate_camera_metadata_structure(metadata, /*size*/NULL) != OK) {
|
|
ALOGW("%s: Failed to validate metadata %p before writing blob",
|
|
__FUNCTION__, metadata);
|
|
}
|
|
|
|
} while(false);
|
|
blob.release();
|
|
|
|
// arg2 = offset (int32)
|
|
res = data.writeInt32(static_cast<int32_t>(offset));
|
|
|
|
return res;
|
|
}
|
|
|
|
status_t CameraMetadata::readFromParcel(Parcel *parcel) {
|
|
|
|
ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
|
|
|
|
status_t res = OK;
|
|
|
|
if (parcel == NULL) {
|
|
ALOGE("%s: parcel is null", __FUNCTION__);
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
if (mLocked) {
|
|
ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
camera_metadata *buffer = NULL;
|
|
// TODO: reading should return a status code, in case validation fails
|
|
res = CameraMetadata::readFromParcel(*parcel, &buffer);
|
|
|
|
if (res != NO_ERROR) {
|
|
ALOGE("%s: Failed to read from parcel. Metadata is unchanged.",
|
|
__FUNCTION__);
|
|
return res;
|
|
}
|
|
|
|
clear();
|
|
mBuffer = buffer;
|
|
|
|
return OK;
|
|
}
|
|
|
|
status_t CameraMetadata::writeToParcel(Parcel *parcel) const {
|
|
|
|
ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
|
|
|
|
if (parcel == NULL) {
|
|
ALOGE("%s: parcel is null", __FUNCTION__);
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
return CameraMetadata::writeToParcel(*parcel, mBuffer);
|
|
}
|
|
|
|
void CameraMetadata::swap(CameraMetadata& other) {
|
|
if (mLocked) {
|
|
ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
|
|
return;
|
|
} else if (other.mLocked) {
|
|
ALOGE("%s: Other CameraMetadata is locked", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
camera_metadata* thisBuf = mBuffer;
|
|
camera_metadata* otherBuf = other.mBuffer;
|
|
|
|
other.mBuffer = thisBuf;
|
|
mBuffer = otherBuf;
|
|
}
|
|
|
|
}; // namespace android
|