iTextSharp.text.pdf.codec.TIFFFaxDecompressor.GetNextChangingElement C# (CSharp) Метод

        private void GetNextChangingElement(int a0, bool isWhite, int[] ret)
        {
            // Local copies of instance variables
            int[] pce = this.prevChangingElems;
            int ces = this.changingElemSize;

            // If the previous match was at an odd element, we still
            // have to search the preceeding element.
            // int start = lastChangingElement & ~0x1;
            int start = lastChangingElement > 0 ? lastChangingElement - 1 : 0;
            if (isWhite) {
                start &= ~0x1; // Search even numbered elements
            } else {
                start |= 0x1; // Search odd numbered elements
            }

            int i = start;
            for (; i < ces; i += 2) {
                int temp = pce[i];
                if (temp > a0) {
                    lastChangingElement = i;
                    ret[0] = temp;
                    break;
                }
            }

            if (i + 1 < ces) {
                ret[1] = pce[i + 1];
            }
        }