public void LoadImage(string path, out bool loadSuccess, out string errorOrWarning)
{
loadSuccess = true;
errorOrWarning = null;
try
{
png = new PngData(path);
// warning for big size
int size = png.GetPixelWidth * png.GetPixelHeight;
if (size >= 1048576) // 1024*1024
{
errorOrWarning = "The size of the image is extreme! Next steps will be at your own risk.";
}
}
catch (Exception ex)
{
loadSuccess = false;
errorOrWarning = ex.Message;
}
}
public void Load(PngData png)
{
var bytelist = new List <byte>(png.originalData.ToByteArray());
var index = 0;
byte[] temp_byte;
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
if (temp_byte[0] != (byte)'P')
{
throw new Exception("P is error");
}
if (temp_byte[1] != (byte)'D')
{
throw new Exception("D is error");
}
if (temp_byte[2] != (byte)'C')
{
throw new Exception("C is error");
}
if (temp_byte[3] != (byte)'A')
{
throw new Exception("A is error");
}
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
if (BitConverter.ToInt32(temp_byte, 0) != 1)
{
throw new Exception("zip type error");
}
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
if (ZipData.n_byte != BitConverter.ToInt32(temp_byte, 0))
{
throw new Exception("n_byte is error");
}
// 元のファイルの文字列の長さ 4byte
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
int path_bytes_Length = BitConverter.ToInt32(temp_byte, 0);
// 元のファイルの文字列データ path_bytes_Length byte
this.path = Encoding.UTF8.GetString(bytelist.GetRange(index, path_bytes_Length).ToArray());
index += path_bytes_Length;
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
int Code_Count = BitConverter.ToInt32(temp_byte, 0);
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
this.byteNumber = BitConverter.ToInt32(temp_byte, 0);
this.Codes = new Dictionary <BoolList, InfoSource>();
this.InvertedCodes = new Dictionary <InfoSource, BoolList>();
for (int i = 0; i < Code_Count; i++)
{
temp_byte = bytelist.GetRange(index, ZipData.n_byte).ToArray();
index += ZipData.n_byte;
var element = new InfoSource(temp_byte);
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
var code_length = BitConverter.ToInt32(temp_byte, 0);
var code_byte_length = code_length / 8 + (code_length % 8 == 0?0:1);
temp_byte = bytelist.GetRange(index, code_byte_length).ToArray();
index += code_byte_length;
var boollist_temp = new BoolList(temp_byte);
var code = new BoolList();
for (int j = 0; j < code_length; j++)
{
code.Add(boollist_temp[j]);
}
this.Codes[code] = element;
this.InvertedCodes[element] = code;
}
temp_byte = bytelist.GetRange(index, 4).ToArray();
index += 4;
int dataLength = BitConverter.ToInt32(temp_byte, 0);
temp_byte = bytelist.GetRange(index, dataLength / 8 + (dataLength % 8 == 0?0:1)).ToArray();
index += dataLength / 8 + (dataLength % 8 == 0?0:1);
var data_temp = new BoolList(temp_byte);
this.data = new BoolList();
for (int i = 0; i < dataLength; i++)
{
this.data.Add(data_temp[i]);
}
}
static void Main()
{/*
* test();
* var t = BoolList.ToBoolArray(0x12);
* for(int i = 0 ; i < 8 ; i++ )
* Console.WriteLine(t[i]);
*
*
* var a = new BoolList();
* var b = new BoolList();
* a.Add(false);
* a.Add(false);
* a.Add(false);
* a.Add(true);
* b.Add(false);
* b.Add(true);
*
* Console.WriteLine(a.GetHashCode());
* Console.WriteLine(b.GetHashCode());
* Console.WriteLine(a==b);
* Console.WriteLine(a+b);
*
* var dict = new Dictionary<BoolList,int>();
*
* //dict.Add(a,1);
* //dict.Add(b,1);
*
* foreach(var k in dict.Keys)
* Console.WriteLine(dict[k]);
*
* return;
*/
Console.WriteLine("1. zip");
Console.WriteLine("2. unzip");
var bdata = new BinaryData();
var zip = new ZipData();
var png = new PngData();
if (int.Parse(Console.ReadLine()) == 1)
{
Console.WriteLine("Input original file path >>");
// 情報源として読み取る
bdata.Load(Console.ReadLine());
// ハフマン符号化して読み取る
zip.Load(bdata);
// PNGデータとして読みとる
png.Load(zip);
Console.WriteLine("Input output file path >>");
png.Save(Console.ReadLine());
}
else
{
Console.WriteLine("Input PNG file path >>");
// PNGデータとして読みとる
png.Load(Console.ReadLine());
// ハフマン符号化して読み取る
zip.Load(png);
// 情報源として読み取る
bdata.Load(zip);
bdata.Save();
}
}
