896    png_ptr->background_1 = png_ptr->background;  in png_init_read_transformations()
1058             png_ptr->background_1.gray = (png_uint_16)(pow(  in png_init_read_transformations()
1068                png_ptr->background_1.red = (png_uint_16)(pow(  in png_init_read_transformations()
1070                png_ptr->background_1.green = (png_uint_16)(pow(  in png_init_read_transformations()
1072                png_ptr->background_1.blue = (png_uint_16)(pow(  in png_init_read_transformations()
1084                png_ptr->background_1.red = png_ptr->background_1.green  in png_init_read_transformations()
1085                  = png_ptr->background_1.blue = png_ptr->background_1.gray;  in png_init_read_transformations()
1454          , &(png_ptr->background_1),  in png_do_read_transformations()
2801    , png_color_16p background_1,  in png_do_background()  argument
3178                         png_composite(w, v, a, background_1->gray);  in png_do_background()
3203                         png_composite(*dp, *sp, a, background_1->gray);  in png_do_background()
3247                         png_composite_16(v, g, a, background_1->gray);  in png_do_background()
3282                         png_composite_16(v, g, a, background_1->gray);  in png_do_background()
3325                         png_composite(w, v, a, background_1->red);  in png_do_background()
3328                         png_composite(w, v, a, background_1->green);  in png_do_background()
3331                         png_composite(w, v, a, background_1->blue);  in png_do_background()
3409                         png_composite_16(w, v, a, background_1->red);  in png_do_background()
3414                         png_composite_16(w, v, a, background_1->green);  in png_do_background()
3419                         png_composite_16(w, v, a, background_1->blue);  in png_do_background()