Lines Matching refs:chunks

63 #   optional ('ancillary') chunks.  This does not prevent PNG
64 #   decoding but does change the libpng API because some chunks
376 # images or the size of data in ancilliary chunks.  This does lead to
527 # non-IDAT chunks (zTXt, iTXt, iCCP, and unknown chunks).  This feature
531 # Any chunks you are not interested in, you can undef here.  The
550 # These options disable *all* the text chunks if turned off
559 # affect the API above.  (Note: the list of chunks follows
702 # process at one time.  The setting does not affect the size of IDAT chunks
707 # this to a value larger than the IDAT chunks typically encountered (it would
709 # of ZBUF_SIZE (the size of IDAT chunks written by libpng.)
713 # Ancillary chunks
745 # chunks.  If either read option is turned on then unknown chunks will be read,
746 # otherwise they are skipped.  If the write option is turned on unknown chunks
752 # The first way to read user chunks is to have libpng save them for a later call
759 # chunks, the callback can either handle the chunk entirely itself or request
765 # unknown chunks has been compiled in.  The normal symptom is that your app
776 # changed from discarding unknown chunks and allows per-chunk control.  This is
779 # chunks it is given.
781 # The second option extends the unknown handling to allow known chunks to be
783 # merely turns on the code to check known as well as unknown chunks.
786 # will prevent applications stopping libpng reading known chunks.
805 # png_save_int_32 is required internally for writing the ancillary chunks oFFs
807 # the corresponding cHRM/gAMA chunks) if full ICC is supported.