godot/core/io/compression.cpp

/**************************************************************************/
/*  compression.cpp                                                       */
/**************************************************************************/
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "compression.h"

#include "core/config/project_settings.h"
#include "core/io/zip_io.h"

#include "thirdparty/misc/fastlz.h"

#include <zlib.h>
#include <zstd.h>

#ifdef BROTLI_ENABLED
#include <brotli/decode.h>
#endif

int Compression::compress(uint8_t *p_dst, const uint8_t *p_src, int p_src_size, Mode p_mode) { … }

int Compression::get_max_compressed_buffer_size(int p_src_size, Mode p_mode) { … }

int Compression::decompress(uint8_t *p_dst, int p_dst_max_size, const uint8_t *p_src, int p_src_size, Mode p_mode) { … }

/**
	This will handle both Gzip and Deflate streams. It will automatically allocate the output buffer into the provided p_dst_vect Vector.
	This is required for compressed data whose final uncompressed size is unknown, as is the case for HTTP response bodies.
	This is much slower however than using Compression::decompress because it may result in multiple full copies of the output buffer.
*/
int Compression::decompress_dynamic(Vector<uint8_t> *p_dst_vect, int p_max_dst_size, const uint8_t *p_src, int p_src_size, Mode p_mode) { … }

int Compression::zlib_level = …;
int Compression::gzip_level = …;
int Compression::zstd_level = …;
bool Compression::zstd_long_distance_matching = …;
int Compression::zstd_window_log_size = …; // ZSTD_WINDOWLOG_LIMIT_DEFAULT
int Compression::gzip_chunk = …;