/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod BinTools Extension

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * This program is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more

 * details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id: CallMaker.h 1964 2008-03-27 04:54:56Z damagedsoul $

 */

#ifndef _INCLUDE_SOURCEMOD_HOOKWRAPPER_H_

#define _INCLUDE_SOURCEMOD_HOOKWRAPPER_H_

#if defined HOOKING_ENABLED

#include "smsdk_ext.h"

#include "sourcehook.h"

#include "IBinTools.h"

#define VTABLE_PATCH_OFFS		2

using namespace SourceMod;

class HookWrapper : public IHookWrapper

{

public:

	HookWrapper(SourceHook::ISourceHook *pSH, 

				const SourceHook::ProtoInfo *proto, 

				SourceHook::MemFuncInfo *memfunc, 

				void *addr

				);

	~HookWrapper();

public: //IHookWrapper

	ISMDelegate *CreateDelegate(void *data);

	unsigned int GetParamCount();

	unsigned int GetParamOffset(unsigned int argnum, unsigned int *size);

	void PerformRecall(void *params, void *retval);

	void Destroy();

public:

	unsigned int GetParamSize();

	unsigned int GetRetSize();

	SourceHook::ProtoInfo *GetProtoInfo();

	void *GetHandlerAddr();

	void SetHookWrpAddr(void *addr);

	void SetCallWrapperAddr(ICallWrapper *wrap);

private:

	void *m_FuncAddr;

	void *m_HookWrapper;

	SourceHook::ISourceHook *m_pSH;

	unsigned int *m_ParamOffs;

	unsigned int m_ParamSize;

	unsigned int m_RetSize;

	SourceHook::MemFuncInfo m_MemFuncInfo;

	SourceHook::ProtoInfo m_ProtoInfo;

	ICallWrapper *m_CallWrapper;

};

class SMDelegate : public ISMDelegate

{

public:

	SMDelegate(void *data);

public: //SourceHook::ISHDelegate

	bool IsEqual(ISHDelegate *pOtherDeleg);

	void DeleteThis();

	void Call();

public: //ISMDelegate

	void *GetUserData();

public:

	void PatchVtable(void *addr);

private:

	void *m_Data;

};

#endif

#endif //_INCLUDE_SOURCEMOD_HOOKWRAPPER_H_