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LibRIFF: Rework to match LibGfx needs
There's now two namespaces, RIFF (little-endian) and IFF (big-endian) which (for the most part) contain the same kinds of structures for handling similar data in both formats. (They also share almost all of their implementation) The main types are ChunkHeader and (Owned)Chunk. While Chunk has no ownership over the data it accesses (and can only be constructed from a byte view), OwnedChunk has ownership over this data and is aimed at reading from streams. OwnedList, implementing the standard RIFF LIST type, is currently only implemented for RIFF due to its only user being WAV, but it may be generalized in the future for use by IFF. Co-authored-by: Timothy Flynn <trflynn89@pm.me>
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Userland/Libraries/LibRIFF/IFF.h
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Userland/Libraries/LibRIFF/IFF.h
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/*
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* Copyright (c) 2018-2023, the SerenityOS developers.
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* Copyright (c) 2023, Nico Weber <thakis@chromium.org>
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* Copyright (c) 2023, kleines Filmröllchen <filmroellchen@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Forward.h>
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#include <LibRIFF/ChunkID.h>
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#include <LibRIFF/Details.h>
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// IFF chunks (as often used by Amiga, EA and more modern formats) use big-endian fields.
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namespace IFF {
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using WordType = BigEndian<u32>;
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using ChunkHeader = RIFF::Detail::ChunkHeader<WordType>;
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using FileHeader = RIFF::Detail::FileHeader<ChunkHeader>;
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using Chunk = RIFF::Detail::Chunk<ChunkHeader>;
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using OwnedChunk = RIFF::Detail::OwnedChunk<ChunkHeader>;
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}
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