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59 lines
3.2 KiB
C++
59 lines
3.2 KiB
C++
/**************************************************************************/
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/* compression.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#pragma once
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#include "core/templates/vector.h"
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#include "core/typedefs.h"
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#include <zlib.h>
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class Compression {
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public:
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static inline int zlib_level = Z_DEFAULT_COMPRESSION;
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static inline int gzip_level = Z_DEFAULT_COMPRESSION;
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static inline int zstd_level = 3;
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static inline bool zstd_long_distance_matching = false;
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static inline int zstd_window_log_size = 27; // ZSTD_WINDOWLOG_LIMIT_DEFAULT
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static inline int gzip_chunk = 16384;
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enum Mode : int32_t {
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MODE_FASTLZ,
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MODE_DEFLATE,
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MODE_ZSTD,
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MODE_GZIP,
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MODE_BROTLI
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};
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static int64_t compress(uint8_t *p_dst, const uint8_t *p_src, int64_t p_src_size, Mode p_mode = MODE_ZSTD);
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static int64_t get_max_compressed_buffer_size(int64_t p_src_size, Mode p_mode = MODE_ZSTD);
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static int64_t decompress(uint8_t *p_dst, int64_t p_dst_max_size, const uint8_t *p_src, int64_t p_src_size, Mode p_mode = MODE_ZSTD);
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static int decompress_dynamic(Vector<uint8_t> *p_dst_vect, int64_t p_max_dst_size, const uint8_t *p_src, int64_t p_src_size, Mode p_mode);
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};
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