U:RDoc::AnyMethod[iI"new:ETI"Zlib::Deflate::new;TT:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph;	[I"OCreates a new deflate stream for compression. If a given argument is nil, ;TI"0the default value of that argument is used.;To:RDoc::Markup::BlankLineo;
;	[I"QThe +level+ sets the compression level for the deflate stream between 0 (no ;TI"Ncompression) and 9 (best compression). The following constants have been ;TI"(defined to make code more readable:;T@o:RDoc::Markup::List:
@type:BULLET:@items[	o:RDoc::Markup::ListItem:@label0;	[o;
;	[I"Zlib::DEFAULT_COMPRESSION;To;;0;	[o;
;	[I"Zlib::NO_COMPRESSION;To;;0;	[o;
;	[I"Zlib::BEST_SPEED;To;;0;	[o;
;	[I"Zlib::BEST_COMPRESSION;T@o;
;	[I"KSee http://www.zlib.net/manual.html#Constants for further information.;T@o;
;	[I"QThe +window_bits+ sets the size of the history buffer and should be between ;TI"P8 and 15.  Larger values of this parameter result in better compression at ;TI"!the expense of memory usage.;T@o;
;	[	I"KThe +mem_level+ specifies how much memory should be allocated for the ;TI"Pinternal compression state.  1 uses minimum memory but is slow and reduces ;TI"Kcompression ratio while 9 uses maximum memory for optimal speed.  The ;TI"3default value is 8. Two constants are defined:;T@o;;
;;[o;;0;	[o;
;	[I"Zlib::DEF_MEM_LEVEL;To;;0;	[o;
;	[I"Zlib::MAX_MEM_LEVEL;T@o;
;	[I"JThe +strategy+ sets the deflate compression strategy.  The following ;TI"strategies are available:;T@o;;
:	NOTE;[
o;;[I"Zlib::DEFAULT_STRATEGY;T;	[o;
;	[I"For normal data;To;;[I"Zlib::FILTERED;T;	[o;
;	[I"/For data produced by a filter or predictor;To;;[I"Zlib::FIXED;T;	[o;
;	[I"#Prevents dynamic Huffman codes;To;;[I"Zlib::HUFFMAN_ONLY;T;	[o;
;	[I"Prevents string matching;To;;[I"Zlib::RLE;T;	[o;
;	[I"6Designed for better compression of PNG image data;T@o;
;	[I"/See the constants for further description.;T@S:RDoc::Markup::Heading:
leveli:	textI"
Examples;T@S;;i;I"
Basic;T@o:RDoc::Markup::Verbatim;	[I"*open "compressed.file", "w+" do |io|
;TI">  io << Zlib::Deflate.new.deflate(File.read("big.file"))
;TI"	end
;T:@format0S;;i;I"Custom compression;T@o;;	[I"5open "compressed.file", "w+" do |compressed_io|
;TI";  deflate = Zlib::Deflate.new(Zlib::BEST_COMPRESSION,
;TI"4                              Zlib::MAX_WBITS,
;TI"8                              Zlib::MAX_MEM_LEVEL,
;TI"7                              Zlib::HUFFMAN_ONLY)
;TI"
;TI"
  begin
;TI"%    open "big.file" do |big_io|
;TI"       until big_io.eof? do
;TI"=        compressed_io << zd.deflate(big_io.read(16384))
;TI"      end
;TI"
    end
;TI"  ensure
;TI"    deflate.close
;TI"  end
;TI"	end
;T;0o;
;	[I"NWhile this example will work, for best optimization review the flags for ;TI"Dyour specific time, memory usage and output space requirements.;T:
@fileI"ext/zlib/zlib.c;T:0@omit_headings_from_table_of_contents_below0I"}Zlib::Deflate.new(level=DEFAULT_COMPRESSION, window_bits=MAX_WBITS, mem_level=DEF_MEM_LEVEL, strategy=DEFAULT_STRATEGY)
;T0[I")(p1 = v1, p2 = v2, p3 = v3, p4 = v4);T@
FI"Deflate;TcRDoc::NormalClass00