Initial community commit

Src/external_dependencies/openmpt-trunk/include/unrar/rarvm.hpp

@@ -0,0 +1,44 @@
+#ifndef _RAR_VM_
+#define _RAR_VM_
+
+#define VM_MEMSIZE                  0x40000
+#define VM_MEMMASK           (VM_MEMSIZE-1)
+
+enum VM_StandardFilters {
+  VMSF_NONE, VMSF_E8, VMSF_E8E9, VMSF_ITANIUM, VMSF_RGB, VMSF_AUDIO, 
+  VMSF_DELTA
+};
+
+struct VM_PreparedProgram
+{
+  VM_PreparedProgram() 
+  {
+    FilteredDataSize=0;
+    Type=VMSF_NONE;
+  }
+  VM_StandardFilters Type;
+  uint InitR[7];
+  byte *FilteredData;
+  uint FilteredDataSize;
+};
+
+class RarVM
+{
+  private:
+    bool ExecuteStandardFilter(VM_StandardFilters FilterType);
+    uint FilterItanium_GetBits(byte *Data,uint BitPos,uint BitCount);
+    void FilterItanium_SetBits(byte *Data,uint BitField,uint BitPos,uint BitCount);
+
+    byte *Mem;
+    uint R[8];
+  public:
+    RarVM();
+    ~RarVM();
+    void Init();
+    void Prepare(byte *Code,uint CodeSize,VM_PreparedProgram *Prg);
+    void Execute(VM_PreparedProgram *Prg);
+    void SetMemory(size_t Pos,byte *Data,size_t DataSize);
+    static uint ReadData(BitInput &Inp);
+};
+
+#endif