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Lines Matching refs:do_filter

340          else if (png_ptr->do_filter != PNG_FILTER_NONE)
901    if (!(png_ptr->do_filter))
905          png_ptr->do_filter = PNG_FILTER_NONE;
908          png_ptr->do_filter = PNG_ALL_FILTERS;
1976    if (png_ptr->do_filter & PNG_FILTER_SUB)
1984    if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH))
1989       if (png_ptr->do_filter & PNG_FILTER_UP)
1997       if (png_ptr->do_filter & PNG_FILTER_AVG)
2005       if (png_ptr->do_filter & PNG_FILTER_PAETH)
2327    png_byte filter_to_do = png_ptr->do_filter;