Blast.Blast.GetBits C# (CSharp) Method

        private int GetBits(int need)
        {
            int val = this._bitBuffer;

            while (this._bitBufferCount < need)
            {
                val |= ((int)ConsumeByte()) << this._bitBufferCount;
                this._bitBufferCount += 8;
            }

            this._bitBuffer = val >> need;
            this._bitBufferCount -= need;

            return val & ((1 << need) - 1);
        }