internal static ZlibCompressionState Inflate_trees_dynamic(int nl, int nd, int[] c, int[] bl, int[] bd, int[] tl, int[] td, int[] hp, ZStream z)
{
ZlibCompressionState r;
var hn = new int[1]; // hufts used in space
var v = new int[288]; // work area for huft_build
// build literal/length tree
r = Huft_build(c, 0, nl, 257, Cplens, Cplext, tl, bl, hp, hn, v);
if (r != ZlibCompressionState.ZOK || bl[0] == 0)
{
if (r == ZlibCompressionState.ZDATAERROR)
{
z.Msg = "oversubscribed literal/length tree";
}
else if (r != ZlibCompressionState.ZMEMERROR)
{
z.Msg = "incomplete literal/length tree";
r = ZlibCompressionState.ZDATAERROR;
}
return(r);
}
// build distance tree
r = Huft_build(c, nl, nd, 0, Cpdist, Cpdext, td, bd, hp, hn, v);
if (r != ZlibCompressionState.ZOK || (bd[0] == 0 && nl > 257))
{
if (r == ZlibCompressionState.ZDATAERROR)
{
z.Msg = "oversubscribed distance tree";
}
else if (r == ZlibCompressionState.ZBUFERROR)
{
z.Msg = "incomplete distance tree";
r = ZlibCompressionState.ZDATAERROR;
}
else if (r != ZlibCompressionState.ZMEMERROR)
{
z.Msg = "empty distance tree with lengths";
r = ZlibCompressionState.ZDATAERROR;
}
return(r);
}
return(ZlibCompressionState.ZOK);
}
internal static ZlibCompressionState Inflate_trees_bits(int[] c, int[] bb, int[] tb, int[] hp, ZStream z)
{
ZlibCompressionState r;
var hn = new int[1]; // hufts used in space
var v = new int[19]; // work area for huft_build
r = Huft_build(c, 0, 19, 19, null, null, tb, bb, hp, hn, v);
if (r == ZlibCompressionState.ZDATAERROR)
{
z.Msg = "oversubscribed dynamic bit lengths tree";
}
else if (r == ZlibCompressionState.ZBUFERROR || bb[0] == 0)
{
z.Msg = "incomplete dynamic bit lengths tree";
r = ZlibCompressionState.ZDATAERROR;
}
return(r);
}
