1 /* 2 * Copyright (C) 2016 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 #ifndef AAPT_SPLIT_TABLESPLITTER_H 18 #define AAPT_SPLIT_TABLESPLITTER_H 19 20 #include <set> 21 #include <vector> 22 #include "android-base/macros.h" 23 #include "androidfw/ConfigDescription.h" 24 25 #include "ResourceTable.h" 26 #include "filter/ConfigFilter.h" 27 #include "process/IResourceTableConsumer.h" 28 29 namespace aapt { 30 31 struct SplitConstraints { 32 std::set<android::ConfigDescription> configs; 33 std::string name; 34 }; 35 36 struct TableSplitterOptions { 37 /** 38 * The preferred densities to keep in the table, stripping out all others. 39 * If empty, no stripping is done. 40 */ 41 std::vector<uint16_t> preferred_densities; 42 43 /** 44 * Configuration filter that determines which resource configuration values 45 * end up in the final table. 46 */ 47 IConfigFilter* config_filter = nullptr; 48 }; 49 50 class TableSplitter { 51 public: 52 TableSplitter(const std::vector<SplitConstraints>& splits, 53 const TableSplitterOptions& options) 54 : split_constraints_(splits), options_(options) { 55 for (size_t i = 0; i < split_constraints_.size(); i++) { 56 splits_.push_back(util::make_unique<ResourceTable>()); 57 } 58 } 59 60 bool VerifySplitConstraints(IAaptContext* context); 61 62 void SplitTable(ResourceTable* original_table); 63 64 std::vector<std::unique_ptr<ResourceTable>>& splits() { return splits_; } 65 66 private: 67 std::vector<SplitConstraints> split_constraints_; 68 std::vector<std::unique_ptr<ResourceTable>> splits_; 69 TableSplitterOptions options_; 70 71 DISALLOW_COPY_AND_ASSIGN(TableSplitter); 72 }; 73 } 74 75 #endif /* AAPT_SPLIT_TABLESPLITTER_H */ 76
