// 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(Unpack 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);
}
