1380          png_ptr->gamma_16_from_1, png_ptr->gamma_16_to_1,  in png_do_read_transformations()
2291             if (png_ptr->gamma_16_to_1 != NULL &&  in png_do_rgb_to_gray()
2308                      png_uint_16 red_1   = png_ptr->gamma_16_to_1[(red&0xff) >>  in png_do_rgb_to_gray()
2310                      png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >>  in png_do_rgb_to_gray()
2312                      png_uint_16 blue_1  = png_ptr->gamma_16_to_1[(blue&0xff) >>  in png_do_rgb_to_gray()
2388             if (png_ptr->gamma_16_to_1 != NULL &&  in png_do_rgb_to_gray()
2405                      png_uint_16 red_1   = png_ptr->gamma_16_to_1[(red&0xff) >>  in png_do_rgb_to_gray()
2407                      png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >>  in png_do_rgb_to_gray()
2409                      png_uint_16 blue_1  = png_ptr->gamma_16_to_1[(blue&0xff) >>  in png_do_rgb_to_gray()
2699    png_uint_16pp gamma_16_to_1, int gamma_shift  in png_do_background()  argument
3103                    gamma_16_to_1 != NULL)  in png_do_background()
3134                         g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];  in png_do_background()
3259                    gamma_16_to_1 != NULL)  in png_do_background()
3295                         v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];  in png_do_background()
3300                         v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];  in png_do_background()
3305                         v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];  in png_do_background()
4176         png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr,  in png_build_gamma_table()
4181            png_ptr->gamma_16_to_1[i] = (png_uint_16p)png_malloc(png_ptr,  in png_build_gamma_table()
4188               png_ptr->gamma_16_to_1[i][j] =  in png_build_gamma_table()