540 struct display  struct
547    png_uint_32    options;           /* See display_log below */  argument
548    png_uint_32    results;           /* A mask of errors seen */
551    png_structp    original_pp;       /* used on the original read */
552    png_infop      original_ip;       /* set by the original read */
554    png_size_t     original_rowbytes; /* of the original rows: */
555    png_bytepp     original_rows;     /* from the original read */
558    png_uint_32    chunks;
561    png_uint_32    width;
562    png_uint_32    height;
563    int            bit_depth;
564    int            color_type;
565    int            interlace_method;
589 display_init(struct display *dp)  in display_init()  argument