// public static int NOPH_ZLib_compress(int i_in_path, int i_in_file_name, int i_out_path, int i_out_file_name, int compression_level)
//{
// String in_path = CRunTime.charPtrToString(i_in_path);
// String in_file_name = CRunTime.charPtrToString(i_in_file_name);
// String out_path = CRunTime.charPtrToString(i_out_path);
// String out_file_name = CRunTime.charPtrToString(i_out_file_name);
// net.rim.device.api.compress.GZIPOutputStream zout = null;
// javax.microedition.io.file.FileConnection fConnIn = null;
// javax.microedition.io.file.FileConnection fConnOut = null;
// Stream os = null;
// Stream iis = null;
// try {
// long in_file_size;
// fConnIn = (javax.microedition.io.file.FileConnection)Connector.open(in_path + "/" + in_file_name);
// fConnOut = (javax.microedition.io.file.FileConnection)Connector.open(out_path + "/" + out_file_name);
// if (!fConnOut.exists())
// fConnOut.create(); // create the file if it doesn't exist
// iis = fConnIn.openInputStream();
// in_file_size = fConnIn.fileSize();
// os = fConnOut.openOutputStream();
// zout = new net.rim.device.api.compress.GZIPOutputStream(os, compression_level, net.rim.device.api.compress.GZIPOutputStream.MAX_LOG2_WINDOW_LENGTH);
// // write into file
// for (long i = 0; i < in_file_size; i++){
// zout.write(iis.read());
// }
// // flush before end
// zout.flush();
// // success
// return 0;
// }
// catch (Exception e) {
// UIWorker.addUIEventLog("NOPH_ZLib_compress Exception in compressing "+ e.toString());
// }finally {
// // try to close stream
// try{
// if(zout!=null)
// zout.close();
// if(fConnIn!=null)
// fConnIn.close();
// if(fConnOut!=null)
// fConnOut.close();
// if(os!=null)
// os.close();
// if(iis!=null)
// iis.close();
// }catch(Exception e){
// Console.WriteLine("zout.close()");
// }
// }
// return 1;
//}
public static int NOPH_ZLib_uncompress(int uncompressedAddr, int uncompressedSizeAddr, int compressedAddr, int compressedSize)
{
//todomt - do better job
int uncompressedSizeRead = 0;
FileStream fs = null;
try
{
/* var store = IsolatedStorageFile.GetUserStoreForApplication();
CRunTimeMemoryInputStream mis = new CRunTimeMemoryInputStream(compressedAddr, compressedSize);
fs = new IsolatedStorageFileStream("temp.gz", FileMode.Create, FileAccess.Write, store);
int b = mis.read();
while (b != -1)
{
fs.WriteByte((byte)b);
b = mis.read();
}
fs.Close();
fs = new IsolatedStorageFileStream("temp.gz", FileMode.Open, FileAccess.Read, store);
ZInputStream zis = new ZInputStream(fs);*/
CRunTimeMemoryInputStream mis = new CRunTimeMemoryInputStream(compressedAddr, compressedSize);
ZInputStream zis = new ZInputStream(mis);
int uncompressedSizeAllocated = CRunTime.memoryReadWord(uncompressedSizeAddr);
int val = 0;
while (((uncompressedAddr & 0x3) != 0) && (uncompressedSizeAllocated > 0) && ((val = zis.ReadByte()) != -1))
{
CRunTime.memoryWriteByte(uncompressedAddr++, val);
++uncompressedSizeRead;
--uncompressedSizeAllocated;
}
while ((val != -1) && (uncompressedSizeAllocated > 3))
{
int i = 0;
for (int j = 0; j < 4; j++)
{
i = i << 8;
// replace the below with val = zis.ReadByte() & 0xff; if changing zlib implementation
val = zis.Read() & 0xff;
i |= val;
}
CRunTime.memoryWriteWord(uncompressedAddr, i);
uncompressedAddr += 4;
uncompressedSizeRead += 4;
uncompressedSizeAllocated -= 4;
}
while ((uncompressedSizeAllocated > 0) && (val = zis.ReadByte()) != -1)
{
CRunTime.memoryWriteByte(uncompressedAddr++, val);
++uncompressedSizeRead;
--uncompressedSizeAllocated;
}
CRunTime.memoryWriteWord(uncompressedSizeAddr, uncompressedSizeRead);
return 1;
}
catch (Exception ex)
{
Logger.log("Exception: " + ex.ToString());
Logger.log("compressedSize " + compressedSize + " uncompressedSizeRead " + uncompressedSizeRead + " Exception: " + ex);
return 0;
}
finally
{
if (fs != null)
{
fs.Close();
}
}
}
