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/*
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* Copyright (C) 2014 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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#define LOG_TAG "VenderTagDescriptor"
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#include <binder/Parcel.h>
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <utils/Mutex.h>
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#include <utils/Vector.h>
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#include <system/camera_metadata.h>
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#include <camera_metadata_hidden.h>
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#include "camera/VendorTagDescriptor.h"
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#include <string.h>
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namespace android {
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extern "C" {
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static int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* v);
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static void vendor_tag_descriptor_get_all_tags(const vendor_tag_ops_t* v, uint32_t* tagArray);
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static const char* vendor_tag_descriptor_get_section_name(const vendor_tag_ops_t* v, uint32_t tag);
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static const char* vendor_tag_descriptor_get_tag_name(const vendor_tag_ops_t* v, uint32_t tag);
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static int vendor_tag_descriptor_get_tag_type(const vendor_tag_ops_t* v, uint32_t tag);
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} /* extern "C" */
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static Mutex sLock;
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static sp<VendorTagDescriptor> sGlobalVendorTagDescriptor;
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VendorTagDescriptor::VendorTagDescriptor() {}
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VendorTagDescriptor::~VendorTagDescriptor() {}
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status_t VendorTagDescriptor::createDescriptorFromOps(const vendor_tag_ops_t* vOps,
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/*out*/
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sp<VendorTagDescriptor>& descriptor) {
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if (vOps == NULL) {
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ALOGE("%s: vendor_tag_ops argument was NULL.", __FUNCTION__);
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return BAD_VALUE;
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}
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int tagCount = vOps->get_tag_count(vOps);
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if (tagCount < 0 || tagCount > INT32_MAX) {
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ALOGE("%s: tag count %d from vendor ops is invalid.", __FUNCTION__, tagCount);
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return BAD_VALUE;
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}
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Vector<uint32_t> tagArray;
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LOG_ALWAYS_FATAL_IF(tagArray.resize(tagCount) != tagCount,
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"%s: too many (%u) vendor tags defined.", __FUNCTION__, tagCount);
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vOps->get_all_tags(vOps, /*out*/tagArray.editArray());
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sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
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desc->mTagCount = tagCount;
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for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
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uint32_t tag = tagArray[i];
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if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
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ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
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return BAD_VALUE;
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}
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const char *tagName = vOps->get_tag_name(vOps, tag);
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if (tagName == NULL) {
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ALOGE("%s: no tag name defined for vendor tag %d.", __FUNCTION__, tag);
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return BAD_VALUE;
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}
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desc->mTagToNameMap.add(tag, String8(tagName));
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const char *sectionName = vOps->get_section_name(vOps, tag);
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if (sectionName == NULL) {
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ALOGE("%s: no section name defined for vendor tag %d.", __FUNCTION__, tag);
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return BAD_VALUE;
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}
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desc->mTagToSectionMap.add(tag, String8(sectionName));
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int tagType = vOps->get_tag_type(vOps, tag);
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if (tagType < 0 || tagType >= NUM_TYPES) {
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ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
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return BAD_VALUE;
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}
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desc->mTagToTypeMap.add(tag, tagType);
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}
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descriptor = desc;
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return OK;
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}
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status_t VendorTagDescriptor::createFromParcel(const Parcel* parcel,
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/*out*/
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sp<VendorTagDescriptor>& descriptor) {
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status_t res = OK;
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if (parcel == NULL) {
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ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
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return BAD_VALUE;
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}
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int32_t tagCount = 0;
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if ((res = parcel->readInt32(&tagCount)) != OK) {
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ALOGE("%s: could not read tag count from parcel", __FUNCTION__);
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return res;
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}
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if (tagCount < 0 || tagCount > INT32_MAX) {
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ALOGE("%s: tag count %d from vendor ops is invalid.", __FUNCTION__, tagCount);
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return BAD_VALUE;
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}
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sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
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desc->mTagCount = tagCount;
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uint32_t tag;
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int32_t tagType;
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for (int32_t i = 0; i < tagCount; ++i) {
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if ((res = parcel->readInt32(reinterpret_cast<int32_t*>(&tag))) != OK) {
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ALOGE("%s: could not read tag id from parcel for index %d", __FUNCTION__, i);
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break;
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}
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if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
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ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
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res = BAD_VALUE;
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break;
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}
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if ((res = parcel->readInt32(&tagType)) != OK) {
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ALOGE("%s: could not read tag type from parcel for tag %d", __FUNCTION__, tag);
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break;
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}
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if (tagType < 0 || tagType >= NUM_TYPES) {
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ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
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res = BAD_VALUE;
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break;
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}
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String8 tagName = parcel->readString8();
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if (tagName.isEmpty()) {
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ALOGE("%s: parcel tag name was NULL for tag %d.", __FUNCTION__, tag);
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res = NOT_ENOUGH_DATA;
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break;
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}
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String8 sectionName = parcel->readString8();
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if (sectionName.isEmpty()) {
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ALOGE("%s: parcel section name was NULL for tag %d.", __FUNCTION__, tag);
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res = NOT_ENOUGH_DATA;
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break;
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}
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desc->mTagToNameMap.add(tag, tagName);
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desc->mTagToSectionMap.add(tag, sectionName);
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desc->mTagToTypeMap.add(tag, tagType);
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}
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if (res != OK) {
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return res;
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}
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descriptor = desc;
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return res;
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}
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int VendorTagDescriptor::getTagCount() const {
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size_t size = mTagToNameMap.size();
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if (size == 0) {
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return VENDOR_TAG_COUNT_ERR;
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}
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return size;
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}
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void VendorTagDescriptor::getTagArray(uint32_t* tagArray) const {
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size_t size = mTagToNameMap.size();
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for (size_t i = 0; i < size; ++i) {
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tagArray[i] = mTagToNameMap.keyAt(i);
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}
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}
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const char* VendorTagDescriptor::getSectionName(uint32_t tag) const {
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ssize_t index = mTagToSectionMap.indexOfKey(tag);
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if (index < 0) {
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return VENDOR_SECTION_NAME_ERR;
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}
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return mTagToSectionMap.valueAt(index).string();
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}
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const char* VendorTagDescriptor::getTagName(uint32_t tag) const {
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ssize_t index = mTagToNameMap.indexOfKey(tag);
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if (index < 0) {
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return VENDOR_TAG_NAME_ERR;
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}
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return mTagToNameMap.valueAt(index).string();
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}
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int VendorTagDescriptor::getTagType(uint32_t tag) const {
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ssize_t index = mTagToNameMap.indexOfKey(tag);
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if (index < 0) {
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return VENDOR_TAG_TYPE_ERR;
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}
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return mTagToTypeMap.valueFor(tag);
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}
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status_t VendorTagDescriptor::writeToParcel(Parcel* parcel) const {
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status_t res = OK;
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if (parcel == NULL) {
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ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
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return BAD_VALUE;
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}
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if ((res = parcel->writeInt32(mTagCount)) != OK) {
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return res;
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}
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size_t size = mTagToNameMap.size();
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uint32_t tag;
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int32_t tagType;
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for (size_t i = 0; i < size; ++i) {
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tag = mTagToNameMap.keyAt(i);
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String8 tagName = mTagToNameMap[i];
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String8 sectionName = mTagToSectionMap.valueFor(tag);
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tagType = mTagToTypeMap.valueFor(tag);
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if ((res = parcel->writeInt32(tag)) != OK) break;
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if ((res = parcel->writeInt32(tagType)) != OK) break;
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if ((res = parcel->writeString8(tagName)) != OK) break;
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if ((res = parcel->writeString8(sectionName)) != OK) break;
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}
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return res;
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}
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status_t VendorTagDescriptor::setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc) {
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status_t res = OK;
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Mutex::Autolock al(sLock);
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sGlobalVendorTagDescriptor = desc;
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vendor_tag_ops_t* opsPtr = NULL;
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if (desc != NULL) {
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opsPtr = &(desc->mVendorOps);
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opsPtr->get_tag_count = vendor_tag_descriptor_get_tag_count;
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opsPtr->get_all_tags = vendor_tag_descriptor_get_all_tags;
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opsPtr->get_section_name = vendor_tag_descriptor_get_section_name;
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opsPtr->get_tag_name = vendor_tag_descriptor_get_tag_name;
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opsPtr->get_tag_type = vendor_tag_descriptor_get_tag_type;
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}
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if((res = set_camera_metadata_vendor_ops(opsPtr)) != OK) {
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ALOGE("%s: Could not set vendor tag descriptor, received error %s (%d)."
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, __FUNCTION__, strerror(-res), res);
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}
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return res;
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}
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void VendorTagDescriptor::clearGlobalVendorTagDescriptor() {
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Mutex::Autolock al(sLock);
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set_camera_metadata_vendor_ops(NULL);
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sGlobalVendorTagDescriptor.clear();
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}
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sp<VendorTagDescriptor> VendorTagDescriptor::getGlobalVendorTagDescriptor() {
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Mutex::Autolock al(sLock);
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return sGlobalVendorTagDescriptor;
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}
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extern "C" {
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int vendor_tag_descriptor_get_tag_count(const vendor_tag_ops_t* v) {
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Mutex::Autolock al(sLock);
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if (sGlobalVendorTagDescriptor == NULL) {
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ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
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return VENDOR_TAG_COUNT_ERR;
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}
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return sGlobalVendorTagDescriptor->getTagCount();
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}
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void vendor_tag_descriptor_get_all_tags(const vendor_tag_ops_t* v, uint32_t* tagArray) {
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Mutex::Autolock al(sLock);
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if (sGlobalVendorTagDescriptor == NULL) {
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ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
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return;
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}
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sGlobalVendorTagDescriptor->getTagArray(tagArray);
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}
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const char* vendor_tag_descriptor_get_section_name(const vendor_tag_ops_t* v, uint32_t tag) {
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Mutex::Autolock al(sLock);
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if (sGlobalVendorTagDescriptor == NULL) {
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ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
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return VENDOR_SECTION_NAME_ERR;
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}
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return sGlobalVendorTagDescriptor->getSectionName(tag);
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}
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const char* vendor_tag_descriptor_get_tag_name(const vendor_tag_ops_t* v, uint32_t tag) {
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Mutex::Autolock al(sLock);
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if (sGlobalVendorTagDescriptor == NULL) {
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ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
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return VENDOR_TAG_NAME_ERR;
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}
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return sGlobalVendorTagDescriptor->getTagName(tag);
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}
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int vendor_tag_descriptor_get_tag_type(const vendor_tag_ops_t* v, uint32_t tag) {
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Mutex::Autolock al(sLock);
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if (sGlobalVendorTagDescriptor == NULL) {
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ALOGE("%s: Vendor tag descriptor not initialized.", __FUNCTION__);
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return VENDOR_TAG_TYPE_ERR;
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}
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return sGlobalVendorTagDescriptor->getTagType(tag);
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}
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} /* extern "C" */
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} /* namespace android */
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