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/*
* Copyright (C) 2014 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_TAG "VendorTagDescriptor"
#include <binder/Parcel.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <utils/Mutex.h>
#include <utils/Vector.h>
#include <utils/SortedVector.h>
#include <system/camera_metadata.h>
#include <camera_metadata_hidden.h>
#include "camera/VendorTagDescriptor.h"
#include <stdio.h>
#include <string.h>
namespace android {
extern "C" {
static int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* v);
static void vendor_tag_descriptor_get_all_tags(const vendor_tag_ops_t* v, uint32_t* tagArray);
static const char* vendor_tag_descriptor_get_section_name(const vendor_tag_ops_t* v, uint32_t tag);
static const char* vendor_tag_descriptor_get_tag_name(const vendor_tag_ops_t* v, uint32_t tag);
static int vendor_tag_descriptor_get_tag_type(const vendor_tag_ops_t* v, uint32_t tag);
} /* extern "C" */
static Mutex sLock;
static sp<VendorTagDescriptor> sGlobalVendorTagDescriptor;
VendorTagDescriptor::VendorTagDescriptor() {}
VendorTagDescriptor::~VendorTagDescriptor() {
size_t len = mReverseMapping.size();
for (size_t i = 0; i < len; ++i) {
delete mReverseMapping[i];
}
}
status_t VendorTagDescriptor::createDescriptorFromOps(const vendor_tag_ops_t* vOps,
/*out*/
sp<VendorTagDescriptor>& descriptor) {
if (vOps == NULL) {
ALOGE("%s: vendor_tag_ops argument was NULL.", __FUNCTION__);
return BAD_VALUE;
}
int tagCount = vOps->get_tag_count(vOps);
if (tagCount < 0 || tagCount > INT32_MAX) {
ALOGE("%s: tag count %d from vendor ops is invalid.", __FUNCTION__, tagCount);
return BAD_VALUE;
}
Vector<uint32_t> tagArray;
LOG_ALWAYS_FATAL_IF(tagArray.resize(tagCount) != tagCount,
"%s: too many (%u) vendor tags defined.", __FUNCTION__, tagCount);
vOps->get_all_tags(vOps, /*out*/tagArray.editArray());
sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
desc->mTagCount = tagCount;
SortedVector<String8> sections;
KeyedVector<uint32_t, String8> tagToSectionMap;
for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
uint32_t tag = tagArray[i];
if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
return BAD_VALUE;
}
const char *tagName = vOps->get_tag_name(vOps, tag);
if (tagName == NULL) {
ALOGE("%s: no tag name defined for vendor tag %d.", __FUNCTION__, tag);
return BAD_VALUE;
}
desc->mTagToNameMap.add(tag, String8(tagName));
const char *sectionName = vOps->get_section_name(vOps, tag);
if (sectionName == NULL) {
ALOGE("%s: no section name defined for vendor tag %d.", __FUNCTION__, tag);
return BAD_VALUE;
}
String8 sectionString(sectionName);
sections.add(sectionString);
tagToSectionMap.add(tag, sectionString);
int tagType = vOps->get_tag_type(vOps, tag);
if (tagType < 0 || tagType >= NUM_TYPES) {
ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
return BAD_VALUE;
}
desc->mTagToTypeMap.add(tag, tagType);
}
desc->mSections = sections;
for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
uint32_t tag = tagArray[i];
String8 sectionString = tagToSectionMap.valueFor(tag);
// Set up tag to section index map
ssize_t index = sections.indexOf(sectionString);
LOG_ALWAYS_FATAL_IF(index < 0, "index %zd must be non-negative", index);
desc->mTagToSectionMap.add(tag, static_cast<uint32_t>(index));
// Set up reverse mapping
ssize_t reverseIndex = -1;
if ((reverseIndex = desc->mReverseMapping.indexOfKey(sectionString)) < 0) {
KeyedVector<String8, uint32_t>* nameMapper = new KeyedVector<String8, uint32_t>();
reverseIndex = desc->mReverseMapping.add(sectionString, nameMapper);
}
desc->mReverseMapping[reverseIndex]->add(desc->mTagToNameMap.valueFor(tag), tag);
}
descriptor = desc;
return OK;
}
status_t VendorTagDescriptor::createFromParcel(const Parcel* parcel,
/*out*/
sp<VendorTagDescriptor>& descriptor) {
status_t res = OK;
if (parcel == NULL) {
ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
return BAD_VALUE;
}
int32_t tagCount = 0;
if ((res = parcel->readInt32(&tagCount)) != OK) {
ALOGE("%s: could not read tag count from parcel", __FUNCTION__);
return res;
}
if (tagCount < 0 || tagCount > INT32_MAX) {
ALOGE("%s: tag count %d from vendor ops is invalid.", __FUNCTION__, tagCount);
return BAD_VALUE;
}
sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
desc->mTagCount = tagCount;
uint32_t tag, sectionIndex;
uint32_t maxSectionIndex = 0;
int32_t tagType;
Vector<uint32_t> allTags;
for (int32_t i = 0; i < tagCount; ++i) {
if ((res = parcel->readInt32(reinterpret_cast<int32_t*>(&tag))) != OK) {
ALOGE("%s: could not read tag id from parcel for index %d", __FUNCTION__, i);
break;
}
if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
res = BAD_VALUE;
break;
}
if ((res = parcel->readInt32(&tagType)) != OK) {
ALOGE("%s: could not read tag type from parcel for tag %d", __FUNCTION__, tag);
break;
}
if (tagType < 0 || tagType >= NUM_TYPES) {
ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
res = BAD_VALUE;
break;
}
String8 tagName = parcel->readString8();
if (tagName.isEmpty()) {
ALOGE("%s: parcel tag name was NULL for tag %d.", __FUNCTION__, tag);
res = NOT_ENOUGH_DATA;
break;
}
if ((res = parcel->readInt32(reinterpret_cast<int32_t*>(&sectionIndex))) != OK) {
ALOGE("%s: could not read section index for tag %d.", __FUNCTION__, tag);
break;
}
maxSectionIndex = (maxSectionIndex >= sectionIndex) ? maxSectionIndex : sectionIndex;
allTags.add(tag);
desc->mTagToNameMap.add(tag, tagName);
desc->mTagToSectionMap.add(tag, sectionIndex);
desc->mTagToTypeMap.add(tag, tagType);
}
if (res != OK) {
return res;
}
size_t sectionCount = 0;
if (tagCount > 0) {
if ((res = parcel->readInt32(reinterpret_cast<int32_t*>(&sectionCount))) != OK) {
ALOGE("%s: could not read section count for.", __FUNCTION__);
return res;
}
if (sectionCount < (maxSectionIndex + 1)) {
ALOGE("%s: Incorrect number of sections defined, received %zu, needs %d.",
__FUNCTION__, sectionCount, (maxSectionIndex + 1));
return BAD_VALUE;
}
LOG_ALWAYS_FATAL_IF(desc->mSections.setCapacity(sectionCount) <= 0,
"Vector capacity must be positive");
for (size_t i = 0; i < sectionCount; ++i) {
String8 sectionName = parcel->readString8();
if (sectionName.isEmpty()) {
ALOGE("%s: parcel section name was NULL for section %zu.",
__FUNCTION__, i);
return NOT_ENOUGH_DATA;
}
desc->mSections.add(sectionName);
}
}
LOG_ALWAYS_FATAL_IF(static_cast<size_t>(tagCount) != allTags.size(),
"tagCount must be the same as allTags size");
// Set up reverse mapping
for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
uint32_t tag = allTags[i];
String8 sectionString = desc->mSections[desc->mTagToSectionMap.valueFor(tag)];
ssize_t reverseIndex = -1;
if ((reverseIndex = desc->mReverseMapping.indexOfKey(sectionString)) < 0) {
KeyedVector<String8, uint32_t>* nameMapper = new KeyedVector<String8, uint32_t>();
reverseIndex = desc->mReverseMapping.add(sectionString, nameMapper);
}
desc->mReverseMapping[reverseIndex]->add(desc->mTagToNameMap.valueFor(tag), tag);
}
descriptor = desc;
return res;
}
int VendorTagDescriptor::getTagCount() const {
size_t size = mTagToNameMap.size();
if (size == 0) {
return VENDOR_TAG_COUNT_ERR;
}
return size;
}
void VendorTagDescriptor::getTagArray(uint32_t* tagArray) const {
size_t size = mTagToNameMap.size();
for (size_t i = 0; i < size; ++i) {
tagArray[i] = mTagToNameMap.keyAt(i);
}
}
const char* VendorTagDescriptor::getSectionName(uint32_t tag) const {
ssize_t index = mTagToSectionMap.indexOfKey(tag);
if (index < 0) {
return VENDOR_SECTION_NAME_ERR;
}
return mSections[mTagToSectionMap.valueAt(index)].string();
}
const char* VendorTagDescriptor::getTagName(uint32_t tag) const {
ssize_t index = mTagToNameMap.indexOfKey(tag);
if (index < 0) {
return VENDOR_TAG_NAME_ERR;
}
return mTagToNameMap.valueAt(index).string();
}
int VendorTagDescriptor::getTagType(uint32_t tag) const {
ssize_t index = mTagToNameMap.indexOfKey(tag);
if (index < 0) {
return VENDOR_TAG_TYPE_ERR;
}
return mTagToTypeMap.valueFor(tag);
}
status_t VendorTagDescriptor::writeToParcel(Parcel* parcel) const {
status_t res = OK;
if (parcel == NULL) {
ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
return BAD_VALUE;
}
if ((res = parcel->writeInt32(mTagCount)) != OK) {
return res;
}
size_t size = mTagToNameMap.size();
uint32_t tag, sectionIndex;
int32_t tagType;
for (size_t i = 0; i < size; ++i) {
tag = mTagToNameMap.keyAt(i);
String8 tagName = mTagToNameMap[i];
sectionIndex = mTagToSectionMap.valueFor(tag);
tagType = mTagToTypeMap.valueFor(tag);
if ((res = parcel->writeInt32(tag)) != OK) break;
if ((res = parcel->writeInt32(tagType)) != OK) break;
if ((res = parcel->writeString8(tagName)) != OK) break;
if ((res = parcel->writeInt32(sectionIndex)) != OK) break;
}
size_t numSections = mSections.size();
if (numSections > 0) {
if ((res = parcel->writeInt32(numSections)) != OK) return res;
for (size_t i = 0; i < numSections; ++i) {
if ((res = parcel->writeString8(mSections[i])) != OK) return res;
}
}
return res;
}
SortedVector<String8> VendorTagDescriptor::getAllSectionNames() const {
return mSections;
}
status_t VendorTagDescriptor::lookupTag(String8 name, String8 section, /*out*/uint32_t* tag) const {
ssize_t index = mReverseMapping.indexOfKey(section);
if (index < 0) {
ALOGE("%s: Section '%s' does not exist.", __FUNCTION__, section.string());
return BAD_VALUE;
}
ssize_t nameIndex = mReverseMapping[index]->indexOfKey(name);
if (nameIndex < 0) {
ALOGE("%s: Tag name '%s' does not exist.", __FUNCTION__, name.string());
return BAD_VALUE;
}
if (tag != NULL) {
*tag = mReverseMapping[index]->valueAt(nameIndex);
}
return OK;
}
void VendorTagDescriptor::dump(int fd, int verbosity, int indentation) const {
size_t size = mTagToNameMap.size();
if (size == 0) {
dprintf(fd, "%*sDumping configured vendor tag descriptors: None set\n",
indentation, "");
return;
}
dprintf(fd, "%*sDumping configured vendor tag descriptors: %zu entries\n",
indentation, "", size);
for (size_t i = 0; i < size; ++i) {
uint32_t tag = mTagToNameMap.keyAt(i);
if (verbosity < 1) {
dprintf(fd, "%*s0x%x\n", indentation + 2, "", tag);
continue;
}
String8 name = mTagToNameMap.valueAt(i);
uint32_t sectionId = mTagToSectionMap.valueFor(tag);
String8 sectionName = mSections[sectionId];
int type = mTagToTypeMap.valueFor(tag);
const char* typeName = (type >= 0 && type < NUM_TYPES) ?
camera_metadata_type_names[type] : "UNKNOWN";
dprintf(fd, "%*s0x%x (%s) with type %d (%s) defined in section %s\n", indentation + 2,
"", tag, name.string(), type, typeName, sectionName.string());
}
}
status_t VendorTagDescriptor::setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc) {
status_t res = OK;
Mutex::Autolock al(sLock);
sGlobalVendorTagDescriptor = desc;
vendor_tag_ops_t* opsPtr = NULL;
if (desc != NULL) {
opsPtr = &(desc->mVendorOps);
opsPtr->get_tag_count = vendor_tag_descriptor_get_tag_count;
opsPtr->get_all_tags = vendor_tag_descriptor_get_all_tags;
opsPtr->get_section_name = vendor_tag_descriptor_get_section_name;
opsPtr->get_tag_name = vendor_tag_descriptor_get_tag_name;
opsPtr->get_tag_type = vendor_tag_descriptor_get_tag_type;
}
if((res = set_camera_metadata_vendor_ops(opsPtr)) != OK) {
ALOGE("%s: Could not set vendor tag descriptor, received error %s (%d)."
, __FUNCTION__, strerror(-res), res);
}
return res;
}
void VendorTagDescriptor::clearGlobalVendorTagDescriptor() {
Mutex::Autolock al(sLock);
set_camera_metadata_vendor_ops(NULL);
sGlobalVendorTagDescriptor.clear();
}
sp<VendorTagDescriptor> VendorTagDescriptor::getGlobalVendorTagDescriptor() {
Mutex::Autolock al(sLock);
return sGlobalVendorTagDescriptor;
}
extern "C" {
int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* /*v*/) {
Mutex::Autolock al(sLock);
if (sGlobalVendorTagDescriptor == NULL) {
ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
return VENDOR_TAG_COUNT_ERR;
}
return sGlobalVendorTagDescriptor->getTagCount();
}
void vendor_tag_descriptor_get_all_tags(const vendor_tag_ops_t* /*v*/, uint32_t* tagArray) {
Mutex::Autolock al(sLock);
if (sGlobalVendorTagDescriptor == NULL) {
ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
return;
}
sGlobalVendorTagDescriptor->getTagArray(tagArray);
}
const char* vendor_tag_descriptor_get_section_name(const vendor_tag_ops_t* /*v*/, uint32_t tag) {
Mutex::Autolock al(sLock);
if (sGlobalVendorTagDescriptor == NULL) {
ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
return VENDOR_SECTION_NAME_ERR;
}
return sGlobalVendorTagDescriptor->getSectionName(tag);
}
const char* vendor_tag_descriptor_get_tag_name(const vendor_tag_ops_t* /*v*/, uint32_t tag) {
Mutex::Autolock al(sLock);
if (sGlobalVendorTagDescriptor == NULL) {
ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
return VENDOR_TAG_NAME_ERR;
}
return sGlobalVendorTagDescriptor->getTagName(tag);
}
int vendor_tag_descriptor_get_tag_type(const vendor_tag_ops_t* /*v*/, uint32_t tag) {
Mutex::Autolock al(sLock);
if (sGlobalVendorTagDescriptor == NULL) {
ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
return VENDOR_TAG_TYPE_ERR;
}
return sGlobalVendorTagDescriptor->getTagType(tag);
}
} /* extern "C" */
} /* namespace android */