//-------------------------------------------------------------------------
public static string DeCompressGZIP(byte[] bufCompress)
{
if (null == bufCompress || 0 == bufCompress.Length)
{
Console.WriteLine("DeCompressGZIP bufCompress is nil");
return(string.Empty);
}
MemoryStream msDe = null;
GZipInputStream inStream = null;
MemoryStream msCom = null;
long currentIndex = 0;
try
{
msDe = new MemoryStream();
msDe.Write(bufCompress, 0, bufCompress.Length);
//msDe.Flush();
msDe.Seek(0, SeekOrigin.Begin);
inStream = new GZipInputStream(msDe);
// 一次读取 8KB
int nSize = 1024 * 8;
byte[] bufCom = new byte[nSize];
msCom = new MemoryStream();
while (true)
{
int numRead = inStream.Read(bufCom, 0, nSize);
if (numRead <= 0)
{
break;
}
// 写进去
msCom.Write(bufCom, 0, numRead);
currentIndex += numRead;
if (numRead < nSize)
{
break;
}
}
byte[] bufDeCompress = msCom.GetBuffer();
return(Encoding.UTF8.GetString(bufDeCompress));
}
catch (Exception ex)
{
Console.WriteLine("DeCompressGZIP 异常(1/2),可能ZIP出错 可能ZIP文件解压后大小刚好是缓冲区的N倍:" + ex.Message);
Console.WriteLine("DeCompressGZIP 异常(2/2),bufCompress.Length:" + bufCompress.Length + ",currentIndex:" + currentIndex);
if (null != msCom)
{
byte[] bufDeCompress = msCom.GetBuffer();
return(Encoding.UTF8.GetString(bufDeCompress));
}
}
finally
{
if (null != inStream)
{
inStream.Close();
}
if (null != msDe)
{
msDe.Close();
}
if (null != msCom)
{
msCom.Close();
}
}
return(string.Empty);
}
static void LoadResToCache()
{
string loon_default_font = "lfcache";
IsolatedStorageFile isoStorage = IsolatedStorageFile.GetUserStoreForApplication();
if (!isoStorage.FileExists(loon_default_font))
{
IsolatedStorageFileStream outStream = isoStorage.CreateFile(loon_default_font);
Stream gzip = null;
try
{
gzip = new GZipInputStream(XNAConfig.LoadStream(LSystem.FRAMEWORK_IMG_NAME + "font.zip"));
byte[] buffer = new byte[4096];
int charsRead;
while ((charsRead = gzip.Read(buffer, 0, buffer.Length)) != 0)
{
outStream.Write(buffer, 0, charsRead);
}
outStream.Flush();
if (gzip != null)
{
gzip.Close();
gzip.Dispose();
gzip = null;
}
buffer = null;
}
catch (Exception)
{
if (outStream != null)
{
outStream.Close();
outStream.Dispose();
outStream = null;
}
if (gzip != null)
{
gzip.Close();
gzip.Dispose();
gzip = null;
}
IsolatedStorageFile.GetUserStoreForApplication().DeleteFile(loon_default_font);
}
finally
{
if (outStream != null)
{
outStream.Close();
outStream = null;
}
}
}
Stream ins = null;
try
{
ins = isoStorage.OpenFile(loon_default_font, FileMode.Open);
DataInputStream resStream = new DataInputStream(ins);
realsize = resStream.ReadUnsignedByte();
offy = resStream.ReadByte();
fontSpace = (realsize + offy) * 2;
if (realsize > 0x10)
{
fontSpace *= 2;
}
int num = resStream.ReadInt();
int num2 = resStream.ReadByte();
byte[] bufferData = new byte[resStream.Available()];
resStream.Read(bufferData);
fontData = bufferData;
if (resStream != null)
{
resStream.Close();
resStream = null;
}
}
catch (Exception)
{
fontData = null;
if (ins != null)
{
ins.Close();
ins.Dispose();
ins = null;
}
LoadResToMemory();
}
finally
{
if (ins != null)
{
ins.Close();
ins.Dispose();
ins = null;
}
}
}
//-------------------------------------------------------------------------
public static string DeCompressGZIPBase64(string strValue)
{
if (true == string.IsNullOrEmpty(strValue))
{
Console.WriteLine("DeCompressGZIPBase64 strValue is nil");
return(string.Empty);
}
string str = strValue;
MemoryStream msDe = null;
GZipInputStream inStream = null;
MemoryStream msCom = null;
try
{
byte[] bufCompress = Convert.FromBase64String(strValue);
msDe = new MemoryStream();
msDe.Write(bufCompress, 0, bufCompress.Length);
//msDe.Flush();
msDe.Seek(0, SeekOrigin.Begin);
inStream = new GZipInputStream(msDe);
// 一次读取 8KB
int nSize = 1024 * 8;
byte[] bufCom = new byte[nSize];
msCom = new MemoryStream();
long currentIndex = 0;
while (true)
{
int numRead = inStream.Read(bufCom, 0, nSize);
if (numRead <= 0)
{
break;
}
// 写进去
msCom.Write(bufCom, 0, numRead);
currentIndex += numRead;
if (numRead < nSize)
{
break;
}
}
byte[] bufDeCompress = msCom.GetBuffer();
str = Encoding.UTF8.GetString(bufDeCompress);
}
catch (Exception ex)
{
Console.WriteLine("DeCompressGZIPBase64 异常,可能ZIP出错 可能ZIP文件解压后大小刚好是缓冲区的N倍:" + ex.Message);
if (null != msCom)
{
byte[] bufDeCompress = msCom.GetBuffer();
str = Encoding.UTF8.GetString(bufDeCompress);
}
}
finally
{
if (null != inStream)
{
inStream.Close();
}
if (null != msDe)
{
msDe.Close();
}
if (null != msCom)
{
msCom.Close();
}
}
return(str);
}