iTextSharp.text.pdf.codec.GifImage.SetPixel C# (CSharp) Метод

        protected void SetPixel(int x, int y, int v)
        {
            if (m_bpc == 8) {
                int pos = x + iw * y;
                m_out[pos] = (byte)v;
            }
            else {
                int pos = m_line_stride * y + x / (8 / m_bpc);
                int vout = v << (8 - m_bpc * (x % (8 / m_bpc))- m_bpc);
                m_out[pos] |= (byte)vout;
            }
        }