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72 lines
2.3 KiB
72 lines
2.3 KiB
/*
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* Copyright (C) 2018 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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#ifndef IDMAP2_INCLUDE_IDMAP2_RESOURCEUTILS_H_
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#define IDMAP2_INCLUDE_IDMAP2_RESOURCEUTILS_H_
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#include <optional>
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#include <string>
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#include <android-base/unique_fd.h>
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#include "androidfw/AssetManager2.h"
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#include "idmap2/Result.h"
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namespace android::idmap2 {
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#define EXTRACT_TYPE(resid) ((0x00ff0000 & (resid)) >> 16)
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#define EXTRACT_ENTRY(resid) (0x0000ffff & (resid))
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// use typedefs to let the compiler warn us about implicit casts
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using ResourceId = android::ResourceId; // 0xpptteeee
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using PackageId = uint8_t; // pp in 0xpptteeee
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using TypeId = uint8_t; // tt in 0xpptteeee
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using EntryId = uint16_t; // eeee in 0xpptteeee
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using DataType = android::DataType; // Res_value::dataType
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using DataValue = android::DataValue; // Res_value::data
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struct TargetValue {
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DataType data_type;
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DataValue data_value;
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std::string data_string_value;
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std::optional<android::base::borrowed_fd> data_binary_value;
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};
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struct TargetValueWithConfig {
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TargetValue value;
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std::string config;
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[[nodiscard]] std::pair<std::string, TargetValue> to_pair() const {
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return std::make_pair(config, value);
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}
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};
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namespace utils {
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// Returns whether the Res_value::data_type represents a dynamic or regular resource reference.
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bool IsReference(uint8_t data_type);
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// Converts the Res_value::data_type to a human-readable string representation.
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StringPiece DataTypeToString(uint8_t data_type);
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// Retrieves the type and entry name of the resource in the AssetManager in the form type/entry.
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Result<std::string> ResToTypeEntryName(const AssetManager2& am, ResourceId resid);
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} // namespace utils
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} // namespace android::idmap2
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#endif // IDMAP2_INCLUDE_IDMAP2_RESOURCEUTILS_H_
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