Initial commit

Torque/SDK/lib/dtsSDK/DTSEndian.h

@@ -0,0 +1,85 @@
+#ifndef __DTSENDIAN_H
+#define __DTSENDIAN_H
+
+// Big endian support.  Note that one should not hold onto the 
+// returned reference in the FIX_ENDIAN methods.  Return reference
+// to a static variable so that one can use & operator on return value.
+
+namespace DTS
+{
+
+   inline bool isLittleEndian()
+   {
+      int test = 1;
+      char * t0 = (char*)&test;
+      ++*t0;
+      return (test==2);
+   }
+   inline void FIX_ENDIAN2(void * val)
+   {
+      char * ptr = (char*)val;
+      char tmp = ptr[0];
+      ptr[0] = ptr[1];
+      ptr[1] = tmp;
+   }
+
+   inline void FIX_ENDIAN4(void * val)
+   {
+      char * ptr = (char*)val;
+      char tmp = ptr[0];
+      ptr[0] = ptr[3];
+      ptr[3] = tmp;
+      tmp = ptr[1];
+      ptr[1] = ptr[2];
+      ptr[2] = tmp;
+   }
+
+   inline short & FIX_ENDIAN(short val)
+   {
+      if (!isLittleEndian())
+         FIX_ENDIAN2(&val);
+      static short out;
+      out = val;
+      return out;
+   }
+
+   inline unsigned short & FIX_ENDIAN(unsigned short val)
+   {
+      return (unsigned short&)FIX_ENDIAN(short(val));
+   }
+
+   inline int & FIX_ENDIAN(int val)
+   {
+      if (!isLittleEndian())
+         FIX_ENDIAN4(&val);
+      static int out;
+      out = val;
+      return out;
+   }
+
+   inline unsigned int & FIX_ENDIAN(unsigned int val)
+   {
+      return (unsigned int&)FIX_ENDIAN( int(val));
+   }
+
+   inline float & FIX_ENDIAN(float val)
+   {
+      if (!isLittleEndian())
+         FIX_ENDIAN4(&val);
+      static float out;
+      out = val;
+      return out;
+   }
+
+#ifdef __APPLE__
+   inline int & FIX_ENDIAN(size_t val)
+   {
+      static int out;
+	  out = val;
+      if (!isLittleEndian())
+         FIX_ENDIAN4(&out);
+      return out;
+   }
+#endif
+}
+#endif