replace with sums and shifs

[Hyuma]

hello guys!

I 've a question how can i change this istructions in my structural with simple sums and shifts operations?

pOut <= CONV_STD_LOGIC_VECTOR((2* CONV_INTEGER(pIn) + 1), bitWidth/2 + 1);

pOut <= CONV_STD_LOGIC_VECTOR((2* CONV_INTEGER(pIn)), bitWidth/2 + 1);

thank you in advance