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6c4c098cbd
This reverts commit 5e995fb850c2b32631914c3815dfb421855fba9b. Change-Id: I761e0e41906742fbe3d3ac34170af3101e18042a
67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
/*
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* Copyright (C) 2015 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 "Minikin"
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#include "FontLanguageListCache.h"
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#include <cutils/log.h>
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#include "MinikinInternal.h"
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namespace android {
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const uint32_t FontLanguageListCache::kEmptyListId;
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// static
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uint32_t FontLanguageListCache::getId(const std::string& languages) {
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FontLanguageListCache* inst = FontLanguageListCache::getInstance();
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std::unordered_map<std::string, uint32_t>::const_iterator it =
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inst->mLanguageListLookupTable.find(languages);
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if (it != inst->mLanguageListLookupTable.end()) {
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return it->second;
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}
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// Given language list is not in cache. Insert it and return newly assigned ID.
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const uint32_t nextId = inst->mLanguageLists.size();
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inst->mLanguageLists.push_back(FontLanguages(languages.c_str(), languages.size()));
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inst->mLanguageListLookupTable.insert(std::make_pair(languages, nextId));
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return nextId;
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}
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// static
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const FontLanguages& FontLanguageListCache::getById(uint32_t id) {
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FontLanguageListCache* inst = FontLanguageListCache::getInstance();
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LOG_ALWAYS_FATAL_IF(id >= inst->mLanguageLists.size(), "Lookup by unknown language list ID.");
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return inst->mLanguageLists[id];
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}
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// static
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FontLanguageListCache* FontLanguageListCache::getInstance() {
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assertMinikinLocked();
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static FontLanguageListCache* instance = nullptr;
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if (instance == nullptr) {
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instance = new FontLanguageListCache();
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// Insert an empty language list for mapping empty language list to kEmptyListId.
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instance->mLanguageLists.push_back(FontLanguages());
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instance->mLanguageListLookupTable.insert(std::make_pair("", kEmptyListId));
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}
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return instance;
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}
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} // namespace android
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