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Lines Matching refs:ig

755          int ir, ig, ib;
767             for (ig = 0; ig < num_green; ig++)
769                /* int dg = abs(ig - g); */
770                int dg = ((ig > g) ? ig - g : g - ig);
773                int index_g = index_r | (ig << PNG_QUANTIZE_BLUE_BITS);