Initial revision

src/osgPlugins/flt/flt.cpp

@@ -0,0 +1,45 @@
+// flt.cpp
+
+#include "flt.h"
+
+
+using namespace flt;
+
+////////////////////////////////////////////////////////////////////
+
+int flt::isLittleEndianMachine()
+{
+    int a = 1;
+    return (int)(*(char*)&a);
+}
+
+
+void flt::endian2(void* pSrc, int nSrc, void* pDst, int nDst)
+{
+	if (nSrc == 2)
+	{
+		short tmp1;
+		tmp1 = *(short *)pSrc;
+		tmp1 = (tmp1 << 8) | ((tmp1 >> 8) & 0xff);
+		*(short *)pDst = tmp1;
+	}
+	else if (nSrc == 4)
+	{
+		long tmp1;
+		tmp1 = *(long *)pSrc;
+		tmp1 = (tmp1 << 24) | ((tmp1 << 8) & 0xff0000) | ((tmp1 >> 8) & 0xff00) | ((tmp1 >> 24) & 0xff);
+		*(long *)pDst = tmp1;
+	}
+	else if (nSrc == 8)
+	{
+		long tmp1, tmp2;
+		tmp1 = *(long *)pSrc;
+		tmp2 = *(1 + (long *)pSrc);
+		tmp1 = (tmp1 << 24) | ((tmp1 << 8) & 0xff0000) | ((tmp1 >> 8) & 0xff00) | ((tmp1 >> 24) & 0xff);
+		tmp2 = (tmp2 << 24) | ((tmp2 << 8) & 0xff0000) | ((tmp2 >> 8) & 0xff00) | ((tmp2 >> 24) & 0xff);
+		*(long *)pDst = tmp2;
+		*(1 + (long *)pDst) = tmp1;
+	}
+}
+
+