/// <summary>
/// Get the offset when compress mode is 64k
/// </summary>
/// <param name="offsetBitCount">the bits count offset used</param>
/// <param name="actualOffsetBitCount">the bits count offset used without flag</param>
private void GetOffsetFromRemain64K(
OffsetBitSize64k offsetBitCount,
OffsetBitSizeWithoutSymbol64k actualOffsetBitCount)
{
uint adding = 0;
if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol64k.Between64And319)
{
adding = (uint)OffsetAdding64k.Between64And319;
}
else if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol64k.Between320And2367)
{
adding = (uint)OffsetAdding64k.Between320And2367;
}
else if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol64k.LargerThan2368)
{
adding = (uint)OffsetAdding64k.LargerThan2368;
}
else
{
// adding = 0;
}
//get offset from high bits part of remain.
//this bits are pushed to remain earlier than others
offset = ((remain >> (remainBitsCount - (int)offsetBitCount))
& (uint)((1 << (int)actualOffsetBitCount) - 1)) + adding;
remainBitsCount -= (int)offsetBitCount;
//elimate the decoded bits
remain = remain & (uint)((1 << remainBitsCount) - 1);
}
/// <summary>
/// Get the offset when compress mode is 64k
/// </summary>
/// <param name="offsetBitCount">the bits count offset used</param>
/// <param name="actualOffsetBitCount">the bits count offset used without flag</param>
private void GetOffsetFromRemain64K(
OffsetBitSize64k offsetBitCount,
OffsetBitSizeWithoutSymbol64k actualOffsetBitCount)
{
uint adding = 0;
if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol64k.Between64And319)
{
adding = (uint)OffsetAdding64k.Between64And319;
}
else if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol64k.Between320And2367)
{
adding = (uint)OffsetAdding64k.Between320And2367;
}
else if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol64k.LargerThan2368)
{
adding = (uint)OffsetAdding64k.LargerThan2368;
}
else
{
// adding = 0;
}
//get offset from high bits part of remain.
//this bits are pushed to remain earlier than others
offset = ((remain >> (remainBitsCount - (int)offsetBitCount))
& (uint)((1 << (int)actualOffsetBitCount) - 1)) + adding;
remainBitsCount -= (int)offsetBitCount;
//elimate the decoded bits
remain = remain & (uint)((1 << remainBitsCount) - 1);
}