1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #define LOG_TAG "Minikin"
18 
19 #include "minikin/SystemFonts.h"
20 
21 namespace minikin {
22 
getInstance()23 SystemFonts& SystemFonts::getInstance() {
24     static SystemFonts systemFonts;
25     return systemFonts;
26 }
27 
findFontCollectionInternal(const std::string & familyName)28 std::shared_ptr<FontCollection> SystemFonts::findFontCollectionInternal(
29         const std::string& familyName) {
30     std::lock_guard<std::mutex> lock(mMutex);
31     auto it = mSystemFallbacks.find(familyName);
32     if (it != mSystemFallbacks.end()) {
33         return it->second;
34     }
35     // TODO: Lookup by PostScript name.
36     return mDefaultFallback;
37 }
38 
buildFontSetLocked()39 void SystemFonts::buildFontSetLocked() {
40     std::unordered_set<FontFamily*> uniqueFamilies;
41 
42     for (const auto& collection : mCollections) {
43         for (size_t i = 0; i < collection->getFamilyCount(); ++i) {
44             const auto& family = collection->getFamilyAt(i);
45             uniqueFamilies.insert(family.get());
46         }
47     }
48 
49     std::vector<std::shared_ptr<Font>> result;
50     for (const auto family : uniqueFamilies) {
51         for (size_t i = 0; i < family->getNumFonts(); ++i) {
52             result.push_back(family->getFontRef(i));
53         }
54     }
55     mFonts = std::move(result);
56 }
57 
58 }  // namespace minikin
59