// Debug
// public void dumpHeap() {
// subAlloc.dumpHeap();
// }
internal bool DecodeInit(Stream stream, int maxOrder, int maxMemory)
{
if (stream != null)
{
Coder = new RangeCoder(stream);
}
if (maxOrder == 1)
{
SubAlloc.StopSubAllocator();
return(false);
}
SubAlloc.StartSubAllocator(maxMemory);
_minContext = new PpmContext(Heap);
//medContext = new PPMContext(Heap);
_maxContext = new PpmContext(Heap);
FoundState = new State(Heap);
_dummySee2Cont = new See2Context();
for (int i = 0; i < 25; i++)
{
for (int j = 0; j < 16; j++)
{
_see2Cont[i][j] = new See2Context();
}
}
StartModelRare(maxOrder);
return(_minContext.Address != 0);
}
internal bool DecodeInit(IRarUnpack unpackRead, int escChar)
{
int maxOrder = unpackRead.Char & 0xff;
bool reset = ((maxOrder & 0x20) != 0);
int maxMb = 0;
if (reset)
{
maxMb = unpackRead.Char;
}
else
{
if (SubAlloc.GetAllocatedMemory() == 0)
{
return(false);
}
}
if ((maxOrder & 0x40) != 0)
{
escChar = unpackRead.Char;
unpackRead.PpmEscChar = escChar;
}
Coder = new RangeCoder(unpackRead);
if (reset)
{
maxOrder = (maxOrder & 0x1f) + 1;
if (maxOrder > 16)
{
maxOrder = 16 + (maxOrder - 16) * 3;
}
if (maxOrder == 1)
{
SubAlloc.StopSubAllocator();
return(false);
}
SubAlloc.StartSubAllocator((maxMb + 1) << 20);
_minContext = new PpmContext(Heap);
//medContext = new PPMContext(Heap);
_maxContext = new PpmContext(Heap);
FoundState = new State(Heap);
_dummySee2Cont = new See2Context();
for (int i = 0; i < 25; i++)
{
for (int j = 0; j < 16; j++)
{
_see2Cont[i][j] = new See2Context();
}
}
StartModelRare(maxOrder);
}
return(_minContext.Address != 0);
}
