39 lines
844 B
C++
39 lines
844 B
C++
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#include "VTUtils.hpp"
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#if defined(LIBCMO_OS_WIN32)
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#define ZLIB_WINAPI
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#include <zconf.h>
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#endif
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#include "CKDefines.hpp"
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#include "CKGlobals.hpp"
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#include <zlib.h>
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namespace LibCmo {
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void* CKUnPackData(CKINT DestSize, const void* SrcBuffer, CKINT SrcSize) {
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char* DestBuffer = new(std::nothrow) char[DestSize];
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if (DestBuffer == nullptr) return nullptr;
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uLongf cache = DestSize;
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if (uncompress(
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reinterpret_cast<Bytef*>(DestBuffer), &cache,
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reinterpret_cast<const Bytef*>(SrcBuffer), SrcSize) != Z_OK) {
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delete[] DestBuffer;
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return nullptr;
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}
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return DestBuffer;
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}
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CKDWORD LibCmo::CKComputeDataCRC(const void* data, size_t size, CKDWORD PreviousCRC) {
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return static_cast<CKDWORD>(adler32(
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static_cast<uLong>(PreviousCRC),
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reinterpret_cast<const Bytef*>(data),
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static_cast<uInt>(size)
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));
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}
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}
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