Add util source and header with functions used in multiple locations.

util.cpp

@@ -0,0 +1,48 @@
+#include "util.h"
+
+void * GetObjectAddr(HookParamType type, unsigned int flags, void **params, size_t offset)
+{
+#ifdef  WIN32
+	if (type == HookParamType_Object)
+		return (void *)((intptr_t)params + offset);
+#elif POSIX
+	if (type == HookParamType_Object && !(flags & PASSFLAG_ODTOR)) //Objects are passed by rrefrence if they contain destructors.
+		return (void *)((intptr_t)params + offset);
+#endif
+	return *(void **)((intptr_t)params + offset);
+
+}
+
+size_t GetParamOffset(HookParamsStruct *paramStruct, unsigned int index)
+{
+	size_t offset = 0;
+	for (unsigned int i = 0; i < index; i++)
+	{
+#ifndef WIN32
+		if (paramStruct->dg->params.at(i).type == HookParamType_Object && (paramStruct->dg->params.at(i).flags & PASSFLAG_ODTOR)) //Passed by refrence
+		{
+			offset += sizeof(void *);
+			continue;
+		}
+#endif
+		offset += paramStruct->dg->params.at(i).size;
+	}
+	return offset;
+}
+
+size_t GetParamTypeSize(HookParamType type)
+{
+	return sizeof(void *);
+}
+
+size_t GetParamsSize(DHooksCallback *dg)
+{
+	size_t res = 0;
+
+	for (int i = dg->params.size() - 1; i >= 0; i--)
+	{
+		res += dg->params.at(i).size;
+	}
+
+	return res;
+}

util.h

@@ -0,0 +1,10 @@
+#ifndef _INCLUDE_UTIL_FUNCTIONS_H_
+#define _INCLUDE_UTIL_FUNCTIONS_H_
+
+#include "vhook.h"
+
+size_t GetParamOffset(HookParamsStruct *params, unsigned int index);
+void * GetObjectAddr(HookParamType type, unsigned int flags, void **params, size_t offset);
+size_t GetParamTypeSize(HookParamType type);
+size_t GetParamsSize(DHooksCallback *dg);
+#endif