mirror of
https://github.com/0ldsk00l/nestopia.git
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146 lines
3.4 KiB
C++
146 lines
3.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////////////
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//
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// Nestopia - NES/Famicom emulator written in C++
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//
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// Copyright (C) 2003-2008 Martin Freij
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//
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// This file is part of Nestopia.
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//
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// Nestopia is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// Nestopia is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Nestopia; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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////////////////////////////////////////////////////////////////////////////////////////
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#ifndef NST_IMAGE_H
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#define NST_IMAGE_H
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#ifdef NST_PRAGMA_ONCE
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#pragma once
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#endif
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#include <iosfwd>
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namespace Nes
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{
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namespace Core
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{
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namespace State
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{
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class Loader;
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class Saver;
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}
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class ImageDatabase;
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class Cpu;
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class Apu;
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class Ppu;
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class NST_NO_VTABLE Image
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{
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public:
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enum Type
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{
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UNKNOWN = 0x0,
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CARTRIDGE = 0x1,
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DISK = 0x2,
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SOUND = 0x4
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};
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typedef void* ExternalDevice;
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enum ExternalDeviceType
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{
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EXT_DIP_SWITCHES = 1,
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EXT_BARCODE_READER
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};
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struct Context
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{
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const Type type;
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Cpu& cpu;
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Apu& apu;
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Ppu& ppu;
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std::istream& stream;
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std::istream* const patch;
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const bool patchBypassChecksum;
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Result* const patchResult;
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const FavoredSystem favoredSystem;
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const bool askProfile;
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const ImageDatabase* const database;
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Result result;
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Context(Type t,Cpu& c,Apu& a,Ppu& p,std::istream& s,std::istream* h,bool k,Result* r,FavoredSystem f,bool b,const ImageDatabase* d)
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: type(t), cpu(c), apu(a), ppu(p), stream(s), patch(h), patchBypassChecksum(k), patchResult(r), favoredSystem(f), askProfile(b), database(d), result(RESULT_OK) {}
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};
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static Image* Load(Context&);
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static void Unload(Image*);
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virtual void Reset(bool) = 0;
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virtual bool PowerOff()
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{
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return true;
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}
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virtual void VSync() {}
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virtual void LoadState(State::Loader&) {}
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virtual void SaveState(State::Saver&,dword) const {}
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virtual uint GetDesiredController(uint) const;
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virtual uint GetDesiredAdapter() const;
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virtual Region GetDesiredRegion() const = 0;
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virtual System GetDesiredSystem(Region,CpuModel* = NULL,PpuModel* = NULL) const;
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virtual dword GetPrgCrc() const
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{
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return 0;
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}
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virtual ExternalDevice QueryExternalDevice(ExternalDeviceType)
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{
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return NULL;
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}
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protected:
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explicit Image(Type);
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virtual ~Image() {}
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enum
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{
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INES_ID = AsciiId<'N','E','S'>::V | 0x1AUL << 24,
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UNIF_ID = AsciiId<'U','N','I','F'>::V,
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FDS_ID = AsciiId<'F','D','S'>::V | 0x1AUL << 24,
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FDS_RAW_ID = 0x494E2A01,
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NSF_ID = AsciiId<'N','E','S','M'>::V
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};
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private:
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const Type type;
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public:
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Type GetType() const
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{
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return type;
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}
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};
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}
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}
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#endif
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