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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DOM_COMPRESSION_FORMATZLIB_H_
#define DOM_COMPRESSION_FORMATZLIB_H_
#include "BaseAlgorithms.h"
#include "mozilla/dom/TransformerCallbackHelpers.h"
#include "zlib.h"
// See the zlib manual in https://www.zlib.net/manual.html or in
// https://searchfox.org/mozilla-central/source/modules/zlib/src/zlib.h
namespace mozilla::dom {
enum class CompressionFormat : uint8_t;
}
namespace mozilla::dom::compression {
class ZLibCompressionStreamAlgorithms : public CompressionStreamAlgorithms {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ZLibCompressionStreamAlgorithms,
CompressionStreamAlgorithms)
static Result<already_AddRefed<ZLibCompressionStreamAlgorithms>, nsresult>
Create(CompressionFormat format);
private:
ZLibCompressionStreamAlgorithms() = default;
[[nodiscard]] nsresult Init(CompressionFormat format);
// Shared by:
// https://wicg.github.io/compression/#compress-and-enqueue-a-chunk
// https://wicg.github.io/compression/#compress-flush-and-enqueue
void Compress(JSContext* aCx, Span<const uint8_t> aInput,
JS::MutableHandleVector<JSObject*> aOutput, Flush aFlush,
ErrorResult& aRv) override;
~ZLibCompressionStreamAlgorithms() override;
z_stream mZStream = {};
};
class ZLibDecompressionStreamAlgorithms : public DecompressionStreamAlgorithms {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ZLibDecompressionStreamAlgorithms,
DecompressionStreamAlgorithms)
static Result<already_AddRefed<ZLibDecompressionStreamAlgorithms>, nsresult>
Create(CompressionFormat format);
private:
ZLibDecompressionStreamAlgorithms() = default;
[[nodiscard]] nsresult Init(CompressionFormat format);
// Shared by:
// https://wicg.github.io/compression/#decompress-and-enqueue-a-chunk
// https://wicg.github.io/compression/#decompress-flush-and-enqueue
// All data errors throw TypeError by step 2: If this results in an error,
// then throw a TypeError.
bool Decompress(JSContext* aCx, Span<const uint8_t> aInput,
JS::MutableHandleVector<JSObject*> aOutput, Flush aFlush,
ErrorResult& aRv) override;
~ZLibDecompressionStreamAlgorithms() override;
z_stream mZStream = {};
};
} // namespace mozilla::dom::compression
#endif // DOM_COMPRESSION_FORMATZLIB_H_
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