1137          if (png_ptr->trans_alpha[i] == 255)  in png_init_palette_transformations()
1139          else if (png_ptr->trans_alpha[i] == 0)  in png_init_palette_transformations()
1195                   png_ptr->trans_alpha[i] =  in png_init_palette_transformations()
1196                       (png_byte)(255 - png_ptr->trans_alpha[i]);  in png_init_palette_transformations()
1689                    png_ptr->trans_alpha[i] != 0xff)  in png_init_read_transformations()
1691                   if (png_ptr->trans_alpha[i] == 0)  in png_init_read_transformations()
1700                      png_composite(w, v, png_ptr->trans_alpha[i], back_1.red);  in png_init_read_transformations()
1704                      png_composite(w, v, png_ptr->trans_alpha[i], back_1.green);  in png_init_read_transformations()
1708                      png_composite(w, v, png_ptr->trans_alpha[i], back_1.blue);  in png_init_read_transformations()
1865          if (png_ptr->trans_alpha[i] == 0)  in png_init_read_transformations()
1870          else if (png_ptr->trans_alpha[i] != 0xff)  in png_init_read_transformations()
1874                 png_ptr->trans_alpha[i], back.red);  in png_init_read_transformations()
1877                 png_ptr->trans_alpha[i], back.green);  in png_init_read_transformations()
1880                 png_ptr->trans_alpha[i], back.blue);  in png_init_read_transformations()
4210     png_bytep row, png_const_colorp palette, png_const_bytep trans_alpha,  in png_do_expand_palette()  argument
4335                      *dp-- = trans_alpha[*sp];  in png_do_expand_palette()
4787              png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);  in png_do_read_transformations()