Better Than Zip Algorithm For Compressing In-Memory Data

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using Aced.IMC;

namespace IMCompressor_Demo
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.ComboBox ratioCombo;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.Label label7;
		private System.Windows.Forms.Label label8;
		private System.Windows.Forms.Label label9;
		private System.Windows.Forms.Label originalSizeLabel;
		private System.Windows.Forms.Label originalSumLabel;
		private System.Windows.Forms.Label compTimeLabel;
		private System.Windows.Forms.Label compSizeLabel;
		private System.Windows.Forms.Label decompTimeLabel;
		private System.Windows.Forms.Label decompSizeLabel;
		private System.Windows.Forms.Label decompSumLabel;
		private System.Windows.Forms.Label fileNameLabel;
		private System.Windows.Forms.OpenFileDialog openFileDialog1;
		private System.Windows.Forms.Button loadFileButton;
		private System.Windows.Forms.Button compDataButton;
		private System.Windows.Forms.Button decompDataButton;
		private System.Windows.Forms.Label compStatusLabel;
		private System.Windows.Forms.Label decompStatusLabel;
		private System.Windows.Forms.Label percentLabel;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.loadFileButton = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.compDataButton = new System.Windows.Forms.Button();
			this.ratioCombo = new System.Windows.Forms.ComboBox();
			this.label3 = new System.Windows.Forms.Label();
			this.decompDataButton = new System.Windows.Forms.Button();
			this.label4 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.label6 = new System.Windows.Forms.Label();
			this.label7 = new System.Windows.Forms.Label();
			this.label8 = new System.Windows.Forms.Label();
			this.label9 = new System.Windows.Forms.Label();
			this.originalSizeLabel = new System.Windows.Forms.Label();
			this.originalSumLabel = new System.Windows.Forms.Label();
			this.compTimeLabel = new System.Windows.Forms.Label();
			this.compSizeLabel = new System.Windows.Forms.Label();
			this.decompTimeLabel = new System.Windows.Forms.Label();
			this.decompSizeLabel = new System.Windows.Forms.Label();
			this.decompSumLabel = new System.Windows.Forms.Label();
			this.fileNameLabel = new System.Windows.Forms.Label();
			this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
			this.compStatusLabel = new System.Windows.Forms.Label();
			this.decompStatusLabel = new System.Windows.Forms.Label();
			this.percentLabel = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// loadFileButton
			// 
			this.loadFileButton.Location = new System.Drawing.Point(28, 40);
			this.loadFileButton.Name = "loadFileButton";
			this.loadFileButton.Size = new System.Drawing.Size(152, 23);
			this.loadFileButton.TabIndex = 2;
			this.loadFileButton.Text = "Load File In Memory...";
			this.loadFileButton.Click += new System.EventHandler(this.loadFileButton_Click);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(28, 12);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(60, 16);
			this.label1.TabIndex = 0;
			this.label1.Text = "File Name:";
			// 
			// label2
			// 
			this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label2.Location = new System.Drawing.Point(368, 168);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(148, 16);
			this.label2.TabIndex = 15;
			this.label2.Text = "Original Adler32 Checksum:";
			// 
			// compDataButton
			// 
			this.compDataButton.Location = new System.Drawing.Point(28, 92);
			this.compDataButton.Name = "compDataButton";
			this.compDataButton.Size = new System.Drawing.Size(152, 23);
			this.compDataButton.TabIndex = 7;
			this.compDataButton.Text = "Compress Data";
			this.compDataButton.Click += new System.EventHandler(this.compDataButton_Click);
			// 
			// ratioCombo
			// 
			this.ratioCombo.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
			this.ratioCombo.Items.AddRange(new object[] {
															"Store",
															"Fastest",
															"Fast",
															"Normal",
															"Maximum"});
			this.ratioCombo.Location = new System.Drawing.Point(372, 68);
			this.ratioCombo.Name = "ratioCombo";
			this.ratioCombo.Size = new System.Drawing.Size(136, 21);
			this.ratioCombo.TabIndex = 6;
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(320, 72);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(52, 16);
			this.label3.TabIndex = 5;
			this.label3.Text = "Method:";
			// 
			// decompDataButton
			// 
			this.decompDataButton.Location = new System.Drawing.Point(28, 176);
			this.decompDataButton.Name = "decompDataButton";
			this.decompDataButton.Size = new System.Drawing.Size(152, 23);
			this.decompDataButton.TabIndex = 13;
			this.decompDataButton.Text = "Decompress Data";
			this.decompDataButton.Click += new System.EventHandler(this.decompDataButton_Click);
			// 
			// label4
			// 
			this.label4.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label4.Location = new System.Drawing.Point(368, 212);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(148, 16);
			this.label4.TabIndex = 21;
			this.label4.Text = "Decompressed Checksum:";
			// 
			// label5
			// 
			this.label5.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label5.Location = new System.Drawing.Point(208, 36);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(144, 16);
			this.label5.TabIndex = 3;
			this.label5.Text = "Original File Size, bytes:";
			// 
			// label6
			// 
			this.label6.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label6.Location = new System.Drawing.Point(208, 128);
			this.label6.Name = "label6";
			this.label6.Size = new System.Drawing.Size(160, 16);
			this.label6.TabIndex = 11;
			this.label6.Text = "Compressed Data Size, bytes:";
			// 
			// label7
			// 
			this.label7.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label7.Location = new System.Drawing.Point(208, 212);
			this.label7.Name = "label7";
			this.label7.Size = new System.Drawing.Size(152, 16);
			this.label7.TabIndex = 19;
			this.label7.Text = "Decompressed Data Size:";
			// 
			// label8
			// 
			this.label8.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label8.Location = new System.Drawing.Point(28, 128);
			this.label8.Name = "label8";
			this.label8.Size = new System.Drawing.Size(152, 16);
			this.label8.TabIndex = 9;
			this.label8.Text = "Compression Time, ms:";
			// 
			// label9
			// 
			this.label9.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.label9.Location = new System.Drawing.Point(28, 212);
			this.label9.Name = "label9";
			this.label9.Size = new System.Drawing.Size(152, 16);
			this.label9.TabIndex = 17;
			this.label9.Text = "Decompression Time, ms:";
			// 
			// originalSizeLabel
			// 
			this.originalSizeLabel.Location = new System.Drawing.Point(208, 56);
			this.originalSizeLabel.Name = "originalSizeLabel";
			this.originalSizeLabel.Size = new System.Drawing.Size(144, 16);
			this.originalSizeLabel.TabIndex = 4;
			this.originalSizeLabel.Text = "<size>";
			// 
			// originalSumLabel
			// 
			this.originalSumLabel.Location = new System.Drawing.Point(372, 188);
			this.originalSumLabel.Name = "originalSumLabel";
			this.originalSumLabel.Size = new System.Drawing.Size(124, 16);
			this.originalSumLabel.TabIndex = 16;
			this.originalSumLabel.Text = "<checksum>";
			this.originalSumLabel.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			// 
			// compTimeLabel
			// 
			this.compTimeLabel.Location = new System.Drawing.Point(32, 148);
			this.compTimeLabel.Name = "compTimeLabel";
			this.compTimeLabel.Size = new System.Drawing.Size(132, 16);
			this.compTimeLabel.TabIndex = 10;
			this.compTimeLabel.Text = "<duration>";
			// 
			// compSizeLabel
			// 
			this.compSizeLabel.Location = new System.Drawing.Point(212, 148);
			this.compSizeLabel.Name = "compSizeLabel";
			this.compSizeLabel.Size = new System.Drawing.Size(152, 16);
			this.compSizeLabel.TabIndex = 12;
			this.compSizeLabel.Text = "<size>";
			// 
			// decompTimeLabel
			// 
			this.decompTimeLabel.Location = new System.Drawing.Point(32, 232);
			this.decompTimeLabel.Name = "decompTimeLabel";
			this.decompTimeLabel.Size = new System.Drawing.Size(132, 16);
			this.decompTimeLabel.TabIndex = 18;
			this.decompTimeLabel.Text = "<duration>";
			// 
			// decompSizeLabel
			// 
			this.decompSizeLabel.Location = new System.Drawing.Point(212, 232);
			this.decompSizeLabel.Name = "decompSizeLabel";
			this.decompSizeLabel.Size = new System.Drawing.Size(148, 16);
			this.decompSizeLabel.TabIndex = 20;
			this.decompSizeLabel.Text = "<size>";
			// 
			// decompSumLabel
			// 
			this.decompSumLabel.Location = new System.Drawing.Point(372, 232);
			this.decompSumLabel.Name = "decompSumLabel";
			this.decompSumLabel.Size = new System.Drawing.Size(124, 16);
			this.decompSumLabel.TabIndex = 22;
			this.decompSumLabel.Text = "<checksum>";
			this.decompSumLabel.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			// 
			// fileNameLabel
			// 
			this.fileNameLabel.Location = new System.Drawing.Point(92, 12);
			this.fileNameLabel.Name = "fileNameLabel";
			this.fileNameLabel.Size = new System.Drawing.Size(412, 16);
			this.fileNameLabel.TabIndex = 1;
			this.fileNameLabel.Text = "<file name>";
			// 
			// openFileDialog1
			// 
			this.openFileDialog1.Filter = "All files|*.*";
			this.openFileDialog1.Title = "Choose the File";
			// 
			// compStatusLabel
			// 
			this.compStatusLabel.Location = new System.Drawing.Point(208, 96);
			this.compStatusLabel.Name = "compStatusLabel";
			this.compStatusLabel.Size = new System.Drawing.Size(112, 16);
			this.compStatusLabel.TabIndex = 8;
			this.compStatusLabel.Text = "<status>";
			// 
			// decompStatusLabel
			// 
			this.decompStatusLabel.Location = new System.Drawing.Point(208, 180);
			this.decompStatusLabel.Name = "decompStatusLabel";
			this.decompStatusLabel.Size = new System.Drawing.Size(124, 16);
			this.decompStatusLabel.TabIndex = 14;
			this.decompStatusLabel.Text = "<status>";
			// 
			// percentLabel
			// 
			this.percentLabel.Location = new System.Drawing.Point(372, 128);
			this.percentLabel.Name = "percentLabel";
			this.percentLabel.Size = new System.Drawing.Size(124, 16);
			this.percentLabel.TabIndex = 23;
			this.percentLabel.Text = "<percent>";
			this.percentLabel.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
			this.ClientSize = new System.Drawing.Size(528, 261);
			this.Controls.Add(this.percentLabel);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.decompStatusLabel);
			this.Controls.Add(this.compStatusLabel);
			this.Controls.Add(this.fileNameLabel);
			this.Controls.Add(this.decompSumLabel);
			this.Controls.Add(this.decompSizeLabel);
			this.Controls.Add(this.decompTimeLabel);
			this.Controls.Add(this.compSizeLabel);
			this.Controls.Add(this.compTimeLabel);
			this.Controls.Add(this.originalSumLabel);
			this.Controls.Add(this.originalSizeLabel);
			this.Controls.Add(this.label9);
			this.Controls.Add(this.label8);
			this.Controls.Add(this.label7);
			this.Controls.Add(this.label6);
			this.Controls.Add(this.label5);
			this.Controls.Add(this.label4);
			this.Controls.Add(this.decompDataButton);
			this.Controls.Add(this.ratioCombo);
			this.Controls.Add(this.compDataButton);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.loadFileButton);
			this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(204)));
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.Text = "IMCompressor Test Application";
			this.Load += new System.EventHandler(this.Form1_Load);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private string _fileName;
		private int _originalSize;
		private byte[] _originalData;
		private int _originalSum;

		private byte[] _compData;
		private int _compTime;
		private int _compSize;

		private byte[] _decompData;
		private int _decompTime;
		private int _decompSize;
		private int _decompSum;

		private void LoadFile()
		{
			_fileName = openFileDialog1.FileName;
			FileStream fs = new FileStream(_fileName, FileMode.Open);
			_originalSize = (int)fs.Length;
			_originalData = new byte[_originalSize];
			fs.Read(_originalData, 0, _originalSize);
			fs.Close();
			_originalSum = AcedBinary.Adler32(_originalData, 0, _originalSize);

			fileNameLabel.Text = _fileName;
			originalSizeLabel.Text = _originalSize.ToString("#,##0");
			originalSumLabel.Text = _originalSum.ToString("X");
		}

		private void CompressData()
		{
			compStatusLabel.Text = "Please wait...";
			Application.DoEvents();

			AcedCompressionLevel level = AcedCompressionLevel.Fast;
			switch (ratioCombo.SelectedIndex)
			{
				case 0:
					level = AcedCompressionLevel.Store;
					break;
				case 1:
					level = AcedCompressionLevel.Fastest;
					break;
				case 2:
					level = AcedCompressionLevel.Fast;
					break;
				case 3:
					level = AcedCompressionLevel.Normal;
					break;
				case 4:
					level = AcedCompressionLevel.Maximum;
					break;
			}
			long L = DateTime.Now.Ticks;


			//-- Uncomment this block to try the standard DeflateStream compression --

			//MemoryStream ms = new MemoryStream();
			//System.IO.Compression.DeflateStream ds =
			//    new System.IO.Compression.DeflateStream(ms, System.IO.Compression.CompressionMode.Compress);
			//ds.Write(_originalData, 0, _originalSize);
			//ds.Close();
			//_compData = ms.ToArray();

			//-- End of the block -- (see also the DecompressData method) ------------


			//-- Comment out this block to try the DeflateStream compression ---------

			_compData = AcedDeflator.Instance.Compress(_originalData, 0, _originalSize, level, 0, 0);

			//-- End of the block -- (see also the DecompressData method) ------------


			_compTime = (int)((DateTime.Now.Ticks - L) / 10000);
			_compSize = _compData.Length;

			compTimeLabel.Text = _compTime.ToString();
			compSizeLabel.Text = _compSize.ToString("#,##0");
			percentLabel.Text = ((double)_compSize / _originalSize * 100.00).ToString("G5") + " %";
			compStatusLabel.Text = "< OK >";
		}

		private void DecompressData()
		{
			decompStatusLabel.Text = "Please wait...";
			Application.DoEvents();

			long L = DateTime.Now.Ticks;


			//-- Uncomment this block to try the standard DeflateStream compression --

			//MemoryStream ms = new MemoryStream(_compData);
			//System.IO.Compression.DeflateStream ds =
			//    new System.IO.Compression.DeflateStream(ms, System.IO.Compression.CompressionMode.Decompress);
			//_decompData = new byte[_originalSize];
			//int offset = 0;
			//int count = _originalSize;
			//while (count > 0)
			//{
			//    int delta = ds.Read(_decompData, offset, count);
			//    offset += delta;
			//    count -= delta;
			//}
			//ds.Close();

			//-- End of the block -- (see also the CompressData method) --------------


			//-- Comment out this block to try the DeflateStream compression ---------

			_decompData = AcedInflator.Instance.Decompress(_compData, 0, 0, 0);

			//-- End of the block -- (see also the CompressData method) --------------


			_decompTime = (int)((DateTime.Now.Ticks - L) / 10000);
			_decompSize = _decompData.Length;
			_decompSum = AcedBinary.Adler32(_decompData, 0, _decompSize);

			decompTimeLabel.Text = _decompTime.ToString();
			decompSizeLabel.Text = _decompSize.ToString("#,##0");
			decompSumLabel.Text = _decompSum.ToString("X");
			decompStatusLabel.Text = "< OK >";
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{
			ratioCombo.SelectedIndex = 2;
		}

		private void loadFileButton_Click(object sender, System.EventArgs e)
		{
			if (openFileDialog1.ShowDialog() == DialogResult.OK)
				LoadFile();
		}

		private void compDataButton_Click(object sender, System.EventArgs e)
		{
			if (_originalData != null)
				CompressData();
		}

		private void decompDataButton_Click(object sender, System.EventArgs e)
		{
			if (_compData != null)
				DecompressData();
		}
	}
}