1120          if (png_ptr->trans_alpha[i] == 255)  in png_init_palette_transformations()
1122          else if (png_ptr->trans_alpha[i] == 0)  in png_init_palette_transformations()
1178                  png_ptr->trans_alpha[i] = (png_byte)(255 -  in png_init_palette_transformations()
1179                     png_ptr->trans_alpha[i]);  in png_init_palette_transformations()
1673                    png_ptr->trans_alpha[i] != 0xff)  in png_init_read_transformations()
1675                   if (png_ptr->trans_alpha[i] == 0)  in png_init_read_transformations()
1684                      png_composite(w, v, png_ptr->trans_alpha[i], back_1.red);  in png_init_read_transformations()
1688                      png_composite(w, v, png_ptr->trans_alpha[i], back_1.green);  in png_init_read_transformations()
1692                      png_composite(w, v, png_ptr->trans_alpha[i], back_1.blue);  in png_init_read_transformations()
1849          if (png_ptr->trans_alpha[i] == 0)  in png_init_read_transformations()
1854          else if (png_ptr->trans_alpha[i] != 0xff)  in png_init_read_transformations()
1858                 png_ptr->trans_alpha[i], back.red);  in png_init_read_transformations()
1861                 png_ptr->trans_alpha[i], back.green);  in png_init_read_transformations()
1864                 png_ptr->trans_alpha[i], back.blue);  in png_init_read_transformations()
4191    png_const_colorp palette, png_const_bytep trans_alpha, int num_trans)  in png_do_expand_palette()  argument
4301                      *dp-- = trans_alpha[*sp];  in png_do_expand_palette()
4733              png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);  in png_do_read_transformations()