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50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
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/* Copyright (c) 2012, Avian Contributors
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Permission to use, copy, modify, and/or distribute this software
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for any purpose with or without fee is hereby granted, provided
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that the above copyright notice and this permission notice appear
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in all copies.
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There is NO WARRANTY for this software. See license.txt for
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details. */
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#include "lzma-util.h"
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#include "LzmaDec.h"
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using namespace vm;
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namespace vm {
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uint8_t*
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decodeLZMA(System* s, Allocator* a, uint8_t* in, unsigned inSize,
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unsigned* outSize)
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{
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const unsigned PropHeaderSize = 5;
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const unsigned HeaderSize = 13;
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int32_t outSize32;
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memcpy(&outSize32, in + PropHeaderSize, 4);
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expect(s, outSize32 >= 0);
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SizeT outSizeT = outSize32;
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uint8_t* out = static_cast<uint8_t*>(a->allocate(outSize32));
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SizeT inSizeT = inSize;
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LzmaAllocator allocator(a);
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ELzmaStatus status;
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int result = LzmaDecode
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(out, &outSizeT, in + HeaderSize, &inSizeT, in, PropHeaderSize,
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LZMA_FINISH_END, &status, &(allocator.allocator));
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expect(s, result == SZ_OK);
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expect(s, status == LZMA_STATUS_FINISHED_WITH_MARK);
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*outSize = outSize32;
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return out;
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}
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} // namespace vm
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