void Unpack::Init(byte *Window)
{
if (Window==NULL)
{
Unpack::Window = (byte*) rarmalloc( MAXWINSIZE );
if (Unpack::Window==NULL)
ErrHandler.MemoryError();
}
else
{
Unpack::Window=Window;
ExternalWindow=true;
}
UnpInitData(false);
BitInput::handle_mem_error( ErrHandler );
Inp.handle_mem_error( ErrHandler );
// Only check BitInput, as VM's memory isn't allocated yet
VM.BitInput::handle_mem_error( ErrHandler );
#ifndef SFX_MODULE
// RAR 1.5 decompression initialization
OldUnpInitData(false);
InitHuff();
#endif
}
BitInput::BitInput()
{
InBuf = (byte*) rarmalloc( MAX_SIZE );
// Otherwise getbits() reads uninitialized memory
// TODO: instead of clearing entire block, just clear last two
// bytes after reading from file
if ( InBuf )
memset( (char*)InBuf, 0, MAX_SIZE );
}
bool SubAllocator::StartSubAllocator(int SASize)
{
uint t=SASize << 20;
if (SubAllocatorSize == t)
return TRUE;
StopSubAllocator();
uint AllocSize=t/FIXED_UNIT_SIZE*UNIT_SIZE+UNIT_SIZE;
if ((HeapStart=(byte *)rarmalloc(AllocSize)) == NULL)
{
ErrHandler.MemoryError();
return FALSE;
}
HeapEnd=HeapStart+AllocSize-UNIT_SIZE;
SubAllocatorSize=t;
return TRUE;
}
bool SubAllocator::StartSubAllocator(int SASize)
{
unsigned int t=SASize << 20;
if (SubAllocatorSize == t)
return true;
StopSubAllocator();
unsigned int AllocSize=t/FIXED_UNIT_SIZE*UNIT_SIZE+UNIT_SIZE;
if ((HeapStart=(unsigned char *)rarmalloc(AllocSize)) == NULL)
{
ErrHandler.MemoryError();
return false;
}
HeapEnd=HeapStart+AllocSize-UNIT_SIZE;
SubAllocatorSize=t;
return true;
}
bool SubAllocator::StartSubAllocator(int SASize)
{
uint t=SASize << 20;
if (SubAllocatorSize == t)
return true;
StopSubAllocator();
uint AllocSize=t/FIXED_UNIT_SIZE*UNIT_SIZE+UNIT_SIZE;
#ifdef STRICT_ALIGNMENT_REQUIRED
AllocSize+=UNIT_SIZE;
#endif
if ((HeapStart=(byte *)rarmalloc(AllocSize)) == NULL)
{
ErrHandler->MemoryError();
return false;
}
HeapEnd=HeapStart+AllocSize-UNIT_SIZE;
SubAllocatorSize=t;
return true;
}
void RarVM::Init()
{
if (Mem==NULL)
Mem = (byte*) rarmalloc( VM_MEMSIZE+4 );
}
