src/org/xwt/translators/MSPack.java

   1 package org.xwt.translators;
   2 import org.xwt.*;
   3 import org.xwt.util.*;
   4 import java.io.*;
   5 import java.util.zip.*;
   6
   7 public class MSPack {
   8
   9     MSPack() { }
  10
  11     private static org.xwt.mips.Interpreter vm = null;
  12
  13     public static synchronized void unpack(InputStream theCabFile) {
  14         try {
  15             if (vm == null) {
  16                 InputStream bis = Platform.getBuiltinInputStream();
  17                 ZipInputStream zis = new ZipInputStream(bis);
  18                 for(ZipEntry ze = zis.getNextEntry(); ze != null && !ze.getName().equals("libmspack.mips"); ze = zis.getNextEntry()) { }
  19                 byte[] image = InputStreamToByteArray.convert(zis);
  20                 vm = new org.xwt.mips.Interpreter(image);
  21                 vm.start(new String[]{ "libmspack.mips" });
  22                 vm.execute();
  23             }
  24
  25             int CAB_RESERVED = 256*1024;
  26             int baseAddr = vm.sbrk(CAB_RESERVED);
  27
  28             byte[] cabstream = InputStreamToByteArray.convert(theCabFile);
  29             vm.copyout(cabstream, baseAddr, cabstream.length);
  30             vm.setUserInfo(0, baseAddr);
  31             vm.setUserInfo(1, cabstream.length);
  32
  33             vm.execute();
  34             // FIXME: do more stuff here
  35
  36         } catch (Exception e) {
  37             Log.log(MSPack.class, e);
  38         }
  39     }
  40 }