Add MxTrace function (#1054)

LEGO1/omni/src/common/mxdebug.cpp

@@ -0,0 +1,30 @@
+#include "mxdebug.h"
+
+#ifdef _DEBUG
+
+// Debug-only wrapper for OutputDebugString to support variadic arguments.
+// Identical functions at BETA10 0x100ec9fe and 0x101741b5 are more limited in scope.
+// This is the most widely used version.
+
+#include <stdio.h>
+#include <windows.h>
+
+// FUNCTION: BETA10 0x10124cb9
+int DebugHeapState()
+{
+	return 0;
+}
+
+// FUNCTION: BETA10 0x10124cdd
+void _MxTrace(const char* format, ...)
+{
+	va_list args;
+	char buffer[256];
+
+	va_start(args, format);
+	_vsnprintf(buffer, 256, format, args);
+	OutputDebugString(buffer);
+	va_end(args);
+}
+
+#endif