33 lines
847 B
C++
33 lines
847 B
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <zlib.h>
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#include <cstdlib>
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namespace Extensions
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{
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static unsigned char* STBZlibCompressor(unsigned char* data, int data_len, int* out_len, int quality)
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{
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uLong maxCompressedSize = compressBound(data_len);
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void* outData = malloc(maxCompressedSize);
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if (!outData)
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{
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*out_len = 0;
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return nullptr;
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}
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int result = compress2(static_cast<Bytef*>(outData), &maxCompressedSize, data, data_len, Z_BEST_COMPRESSION);
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if (result != Z_OK)
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{
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free(outData);
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*out_len = 0;
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return nullptr;
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}
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*out_len = static_cast<int>(maxCompressedSize);
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return static_cast<unsigned char*>(outData);
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}
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} |