Lines Matching full:unfilter
4013 unfilter a PNG image scanline by scanline. when the pixels are smaller than 1 byte,
4082 static unsigned unfilter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp)
4210 *) if no Adam7: 1) unfilter 2) remove padding bits (= posible extra bits per scanline if bpp < 8)
4211 *) if adam7: 1) 7x unfilter 2) 7x remove padding bits 3) Adam7_deinterlace
4221 CERROR_TRY_RETURN(unfilter(in, in, w, h, bpp));
4225 else CERROR_TRY_RETURN(unfilter(out, in, w, h, bpp));
4236 CERROR_TRY_RETURN(unfilter(&in[padded_passstart[i]], &in[filter_passstart[i]], passw[i], passh[i], bpp));
