Joshua Goins
29d3a1aabf
Will now compile out of the box on Windows MSVC. Right now, out of the box game installation is not supported as per unshield being non-functional on Windows, will be porting to Windows or finding a workaround in the near future.
32 lines
No EOL
949 B
C++
32 lines
No EOL
949 B
C++
#include "compression.h"
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#include <zlib.h>
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#include <stdexcept>
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#include <string>
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// adopted from
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// https://github.com/ahom/ffxiv_reverse/blob/312a0af8b58929fab48438aceae8da587be9407f/xiv/utils/src/zlib.cpp#L31
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void zlib::no_header_decompress(uint8_t* in, uint32_t in_size, uint8_t* out, uint32_t out_size) {
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z_stream strm = {};
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strm.avail_in = in_size;
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// Init with -15 because we do not have header in this compressed data
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auto ret = inflateInit2(&strm, -15);
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if (ret != Z_OK) {
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throw std::runtime_error("Error at zlib init: " + std::to_string(ret));
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}
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// Set pointers to the right addresses
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strm.next_in = in;
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strm.avail_out = out_size;
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strm.next_out = out;
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// Effectively decompress data
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ret = inflate(&strm, Z_NO_FLUSH);
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if (ret != Z_STREAM_END) {
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throw std::runtime_error("Error at zlib inflate: " + std::to_string(ret));
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}
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// Clean up
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inflateEnd(&strm);
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} |