907    png_ptr->background_1 = png_ptr->background;  in png_init_read_transformations()
1069             png_ptr->background_1.gray = (png_uint_16)(pow(  in png_init_read_transformations()
1079                png_ptr->background_1.red = (png_uint_16)(pow(  in png_init_read_transformations()
1081                png_ptr->background_1.green = (png_uint_16)(pow(  in png_init_read_transformations()
1083                png_ptr->background_1.blue = (png_uint_16)(pow(  in png_init_read_transformations()
1095                png_ptr->background_1.red = png_ptr->background_1.green  in png_init_read_transformations()
1096                  = png_ptr->background_1.blue = png_ptr->background_1.gray;  in png_init_read_transformations()
1464          , &(png_ptr->background_1),  in png_do_read_transformations()
2811    , png_color_16p background_1,  in png_do_background()  argument
3188                         png_composite(w, v, a, background_1->gray);  in png_do_background()
3213                         png_composite(*dp, *sp, a, background_1->gray);  in png_do_background()
3257                         png_composite_16(v, g, a, background_1->gray);  in png_do_background()
3292                         png_composite_16(v, g, a, background_1->gray);  in png_do_background()
3335                         png_composite(w, v, a, background_1->red);  in png_do_background()
3338                         png_composite(w, v, a, background_1->green);  in png_do_background()
3341                         png_composite(w, v, a, background_1->blue);  in png_do_background()
3419                         png_composite_16(w, v, a, background_1->red);  in png_do_background()
3424                         png_composite_16(w, v, a, background_1->green);  in png_do_background()
3429                         png_composite_16(w, v, a, background_1->blue);  in png_do_background()