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/*************************************************************************/
/* stream_peer_gzip.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef STREAM_PEER_GZIP_H
#define STREAM_PEER_GZIP_H
#include "core/io/stream_peer.h"
#include "core/core_bind.h"
#include "core/io/compression.h"
#include "core/templates/ring_buffer.h"
class StreamPeerGZIP : public StreamPeer {
GDCLASS(StreamPeerGZIP, StreamPeer);
private:
void *ctx = nullptr; // Will hold our z_stream instance.
bool compressing = true;
RingBuffer<uint8_t> rb;
Vector<uint8_t> buffer;
Error _process(uint8_t *p_dst, int p_dst_size, const uint8_t *p_src, int p_src_size, int &r_consumed, int &r_out, bool p_close = false);
void _close();
Error _start(bool p_compress, bool p_is_deflate, int buffer_size = 65535);
protected:
static void _bind_methods();
public:
Error start_compression(bool p_is_deflate, int buffer_size = 65535);
Error start_decompression(bool p_is_deflate, int buffer_size = 65535);
Error finish();
void clear();
virtual Error put_data(const uint8_t *p_data, int p_bytes) override;
virtual Error put_partial_data(const uint8_t *p_data, int p_bytes, int &r_sent) override;
virtual Error get_data(uint8_t *p_buffer, int p_bytes) override;
virtual Error get_partial_data(uint8_t *p_buffer, int p_bytes, int &r_received) override;
virtual int get_available_bytes() const override;
StreamPeerGZIP();
~StreamPeerGZIP();
};
#endif // STREAM_PEER_GZIP_H
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