1 ////////////////////////////////////////////////////////////////////////////////////////
2 //
3 // Nestopia - NES/Famicom emulator written in C++
4 //
5 // Copyright (C) 2003-2008 Martin Freij
6 //
7 // This file is part of Nestopia.
8 //
9 // Nestopia is free software; you can redistribute it and/or modify
10 // it under the terms of the GNU General Public License as published by
11 // the Free Software Foundation; either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // Nestopia is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 // GNU General Public License for more details.
18 //
19 // You should have received a copy of the GNU General Public License
20 // along with Nestopia; if not, write to the Free Software
21 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22 //
23 ////////////////////////////////////////////////////////////////////////////////////////
24 
25 #ifndef NST_PATCHER_H
26 #define NST_PATCHER_H
27 
28 #ifdef NST_PRAGMA_ONCE
29 #pragma once
30 #endif
31 
32 #include <iosfwd>
33 
34 namespace Nes
35 {
36 	namespace Core
37 	{
38 		class Ips;
39 		class Ups;
40 
41 		class Patcher
42 		{
43 		public:
44 
45 			explicit Patcher(bool=false);
46 			~Patcher();
47 
48 			enum Type
49 			{
50 				IPS,
51 				UPS
52 			};
53 
54 			struct Block
55 			{
56 				const byte* data;
57 				dword size;
58 			};
59 
60 			Result Load(std::istream&);
61 			Result Load(std::istream&,std::istream&);
62 			Result Test(std::istream&) const;
63 			Result Test(const byte*,dword) const;
64 			Result Test(const Block*,uint) const;
65 			Result Save(std::ostream&) const;
66 			Result Create(Type,const byte*,const byte*,dword);
67 			bool   Patch(const byte*,byte*,dword,dword=0) const;
68 			void   Destroy();
69 			bool   Empty() const;
70 
71 		private:
72 
73 			Ips* ips;
74 			Ups* ups;
75 			const bool bypassChecksum;
76 
77 		public:
78 
79 			template<dword N>
Test(const Block (& blocks)[N])80 			Result Test(const Block (&blocks)[N])
81 			{
82 				NST_COMPILE_ASSERT( N > 0 );
83 				return Test( blocks, N );
84 			}
85 		};
86 	}
87 }
88 
89 #endif
90