png_do_read_swap_alpha 1037 3rdparty/libpng/pngpriv.h PNG_EXTERN void png_do_read_swap_alpha PNGARG((png_row_infop row_info, png_do_read_swap_alpha 2332 3rdparty/libpng/pngrtran.c png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1);