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#include "bzip2_compressor.hpp"
#include "coder_util.hpp"
#include "../base/assert.hpp"
#include "../std/vector.hpp"
#include "../3party/bzip2/bzlib.h"
size_t DecompressBZip2IntoFixedSize(char const * pSrc, size_t srcSize, char * pDst, size_t dstSize)
{
// TODO: Remove unnecessary copying.
vector<char> src(pSrc, pSrc + srcSize);
unsigned int dstUsed = dstSize;
int error = BZ2_bzBuffToBuffDecompress(pDst, &dstUsed, &src[0], srcSize, 0, 0);
switch (error)
{
case BZ_OK:
return dstUsed;
case BZ_OUTBUFF_FULL:
return size_t(-1);
default:
MYTHROW(DecompressBZip2Exception, (error, srcSize, dstSize, dstUsed));
}
}
void DecompressBZip2(char const * pSrc, size_t srcSize, string & dst)
{
FixedDstSizeCodeToString(&DecompressBZip2IntoFixedSize, pSrc, srcSize, dst);
}
void CompressBZip2(int level, char const * pSrc, size_t srcSize, string & dst)
{
ASSERT(level >= 1 && level <= 9, (level));
dst.resize(srcSize + srcSize / 100 + 699);
unsigned int dstUsed = dst.size();
// TODO: Remove unnecessary copying.
vector<char> src(pSrc, pSrc + srcSize);
int error = BZ2_bzBuffToBuffCompress(&dst[0], &dstUsed, &src[0], srcSize, level, 0, 0);
if (error == BZ_OK)
dst.resize(dstUsed);
else
MYTHROW(CompressBZip2Exception, (error, srcSize, dst.size(), dstUsed));
}
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