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27*cdf0e10cSrcweir 
28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
29*cdf0e10cSrcweir #include "precompiled_xmlhelp.hxx"
30*cdf0e10cSrcweir #include <util/Decompressor.hxx>
31*cdf0e10cSrcweir #include <util/CompressorIterator.hxx>
32*cdf0e10cSrcweir 
33*cdf0e10cSrcweir using namespace xmlsearch;
34*cdf0e10cSrcweir using namespace xmlsearch::util;
35*cdf0e10cSrcweir 
36*cdf0e10cSrcweir const sal_Int32 Decompressor::BitsInByte = 8;
37*cdf0e10cSrcweir const sal_Int32 Decompressor::NBits = 32;
38*cdf0e10cSrcweir 
39*cdf0e10cSrcweir inline sal_Int32 getInteger_( const sal_Int8* v )
40*cdf0e10cSrcweir {
41*cdf0e10cSrcweir     return (((((( (v[0]&0xFF) ) << 8 )
42*cdf0e10cSrcweir                 | (v[1]&0xFF) ) << 8 )
43*cdf0e10cSrcweir                 | (v[2]&0xFF) ) << 8 )
44*cdf0e10cSrcweir                 | (v[3]&0xFF);
45*cdf0e10cSrcweir }
46*cdf0e10cSrcweir 
47*cdf0e10cSrcweir sal_Int32 StreamDecompressor::getNextByte()
48*cdf0e10cSrcweir {
49*cdf0e10cSrcweir   sal_Int8 a[4];
50*cdf0e10cSrcweir   a[0] = a[1] = a[2] = 0;
51*cdf0e10cSrcweir   if( in_->readBytes( &a[3],1 ) != -1 )
52*cdf0e10cSrcweir     return getInteger_( a );
53*cdf0e10cSrcweir   else
54*cdf0e10cSrcweir     return -1;
55*cdf0e10cSrcweir }
56