public DeflaterHuffman(DeflaterPending pending) { this.pending = pending; this.literalTree = new Tree(this, 0x11e, 0x101, 15); this.distTree = new Tree(this, 30, 1, 15); this.blTree = new Tree(this, 0x13, 4, 7); this.d_buf = new short[0x4000]; this.l_buf = new byte[0x4000]; }
public DeflaterEngine(DeflaterPending pending) { this.pending = pending; this.huffman = new DeflaterHuffman(pending); this.adler = new Adler32(); this.window = new byte[0x10000]; this.head = new short[0x8000]; this.prev = new short[0x8000]; this.blockStart = this.strstart = 1; }
public Deflater(int level, bool noZlibHeaderOrFooter) { if (level == -1) { level = 6; } else if ((level < 0) || (level > 9)) { throw new ArgumentOutOfRangeException("level"); } this.pending = new DeflaterPending(); this.engine = new DeflaterEngine(this.pending); this.noZlibHeaderOrFooter = noZlibHeaderOrFooter; this.SetStrategy(DeflateStrategy.Default); this.SetLevel(level); this.Reset(); }
/// <summary> /// Creates a new deflater with given compression level. /// </summary> /// <param name="level"> /// the compression level, a value between NO_COMPRESSION /// and BEST_COMPRESSION. /// </param> /// <param name="noZlibHeaderOrFooter"> /// true, if we should suppress the Zlib/RFC1950 header at the /// beginning and the adler checksum at the end of the output. This is /// useful for the GZIP/PKZIP formats. /// </param> /// <exception cref="System.ArgumentOutOfRangeException">if lvl is out of range.</exception> public Deflater(int level, bool noZlibHeaderOrFooter) { if (level == DEFAULT_COMPRESSION) { level = 6; } else if (level < NO_COMPRESSION || level > BEST_COMPRESSION) { throw new ArgumentOutOfRangeException("level"); } pending = new DeflaterPending(); engine = new DeflaterEngine(pending); this.noZlibHeaderOrFooter = noZlibHeaderOrFooter; SetStrategy(DeflateStrategy.Default); SetLevel(level); Reset(); }
/// <summary> /// Construct instance with pending buffer /// </summary> /// <param name="pending">Pending buffer to use</param> public DeflaterHuffman(DeflaterPending pending) { this.pending = pending; literalTree = new Tree(this, LITERAL_NUM, 257, 15); distTree = new Tree(this, DIST_NUM, 1, 15); blTree = new Tree(this, BITLEN_NUM, 4, 7); d_buf = new short[BUFSIZE]; l_buf = new byte[BUFSIZE]; }
/// <summary> /// Construct instance with pending buffer /// </summary> /// <param name="pending"> /// Pending buffer to use /// </param>> public DeflaterEngine(DeflaterPending pending) { this.pending = pending; huffman = new DeflaterHuffman(pending); adler = new Adler32(); window = new byte[2 * WSIZE]; head = new short[HASH_SIZE]; prev = new short[WSIZE]; // We start at index 1, to avoid an implementation deficiency, that // we cannot build a repeat pattern at index 0. blockStart = strstart = 1; }