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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/* vim:set ts=2 sw=2 sts=2 et: */
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/**
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* \author Marcus Holland-Moritz (github@mhxnet.de)
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* \copyright Copyright (c) Marcus Holland-Moritz
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*
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* This file is part of dwarfs.
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*
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* dwarfs is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* dwarfs is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with dwarfs. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <dwarfs/block_decompressor.h>
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#include <dwarfs/decompressor_registry.h>
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#include <dwarfs/fstypes.h>
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#include <dwarfs/vector_byte_buffer.h>
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namespace dwarfs {
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block_decompressor::block_decompressor(compression_type type,
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std::span<uint8_t const> data) {
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impl_ = decompressor_registry::instance().create(type, data);
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}
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shared_byte_buffer
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block_decompressor::decompress(compression_type type,
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std::span<uint8_t const> data) {
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block_decompressor bd(type, data);
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auto target = vector_byte_buffer::create_reserve(bd.uncompressed_size());
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bd.start_decompression(target);
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bd.decompress_frame(bd.uncompressed_size());
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return target.share();
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}
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shared_byte_buffer
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block_decompressor::start_decompression(mutable_byte_buffer target) {
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impl_->start_decompression(target);
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target.freeze_location();
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return target.share();
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}
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shared_byte_buffer
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block_decompressor::start_decompression(byte_buffer_factory const& bbf) {
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auto target = bbf.create_mutable_fixed_reserve(impl_->uncompressed_size());
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return start_decompression(target);
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}
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} // namespace dwarfs
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