1ab598f46c
An early refactor. Some ideas became clearer as development continued. Now the various phases are much clearer and more easily reusable. Also added a ton of tests! Change-Id: Ic8f0a70c8222370352e63533b329c40457c0903e
88 lines
2.4 KiB
C++
88 lines
2.4 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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#ifndef AAPT_FLATTEN_CHUNKWRITER_H
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#define AAPT_FLATTEN_CHUNKWRITER_H
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#include "util/BigBuffer.h"
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#include "util/Util.h"
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#include <androidfw/ResourceTypes.h>
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namespace aapt {
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class ChunkWriter {
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private:
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BigBuffer* mBuffer;
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size_t mStartSize = 0;
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android::ResChunk_header* mHeader = nullptr;
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public:
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explicit inline ChunkWriter(BigBuffer* buffer) : mBuffer(buffer) {
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}
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ChunkWriter(const ChunkWriter&) = delete;
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ChunkWriter& operator=(const ChunkWriter&) = delete;
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ChunkWriter(ChunkWriter&&) = default;
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ChunkWriter& operator=(ChunkWriter&&) = default;
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template <typename T>
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inline T* startChunk(uint16_t type) {
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mStartSize = mBuffer->size();
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T* chunk = mBuffer->nextBlock<T>();
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mHeader = &chunk->header;
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mHeader->type = util::hostToDevice16(type);
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mHeader->headerSize = util::hostToDevice16(sizeof(T));
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return chunk;
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}
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template <typename T>
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inline T* nextBlock(size_t count = 1) {
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return mBuffer->nextBlock<T>(count);
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}
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inline BigBuffer* getBuffer() {
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return mBuffer;
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}
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inline android::ResChunk_header* getChunkHeader() {
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return mHeader;
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}
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inline size_t size() {
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return mBuffer->size() - mStartSize;
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}
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inline android::ResChunk_header* finish() {
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mBuffer->align4();
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mHeader->size = util::hostToDevice32(mBuffer->size() - mStartSize);
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return mHeader;
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}
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};
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template <>
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inline android::ResChunk_header* ChunkWriter::startChunk(uint16_t type) {
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mStartSize = mBuffer->size();
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mHeader = mBuffer->nextBlock<android::ResChunk_header>();
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mHeader->type = util::hostToDevice16(type);
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mHeader->headerSize = util::hostToDevice16(sizeof(android::ResChunk_header));
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return mHeader;
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}
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} // namespace aapt
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#endif /* AAPT_FLATTEN_CHUNKWRITER_H */
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