mirror of
https://github.com/0ldsk00l/nestopia.git
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237 lines
7 KiB
C++
237 lines
7 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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#include "NstInpDevice.hpp"
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#include "../NstPpu.hpp"
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#include "NstInpZapper.hpp"
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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 Input
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{
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const byte Zapper::lightMap[Video::Screen::PALETTE] =
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{
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0x66, 0x28, 0x23, 0x24, 0x29, 0x28, 0x25, 0x2B,
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0x2F, 0x2E, 0x30, 0x2F, 0x2E, 0x00, 0x00, 0x00,
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0xAD, 0x56, 0x56, 0x56, 0x56, 0x56, 0x57, 0x5C,
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0x60, 0x60, 0x5B, 0x5A, 0x59, 0x00, 0x00, 0x00,
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0xFF, 0xA2, 0x9D, 0x9D, 0xA3, 0xA4, 0xA5, 0xA7,
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0xA9, 0xA8, 0xA7, 0xA7, 0xA7, 0x4F, 0x00, 0x00,
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0xFF, 0xD9, 0xD7, 0xD8, 0xDA, 0xDA, 0xDB, 0xDC,
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0xDC, 0xDC, 0xDB, 0xDC, 0xDC, 0xB8, 0x00, 0x00,
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0x5C, 0x19, 0x1B, 0x26, 0x2C, 0x2B, 0x24, 0x22,
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0x25, 0x26, 0x23, 0x22, 0x21, 0x00, 0x00, 0x00,
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0xA0, 0x48, 0x48, 0x48, 0x4A, 0x49, 0x49, 0x50,
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0x55, 0x54, 0x4E, 0x49, 0x49, 0x20, 0x00, 0x00,
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0xE6, 0x92, 0x8D, 0x8E, 0x90, 0x8A, 0x8C, 0x95,
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0x99, 0x98, 0x96, 0x95, 0x95, 0x46, 0x00, 0x00,
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0xE6, 0xC9, 0xC7, 0xC8, 0xC4, 0xC1, 0xC1, 0xC5,
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0xC9, 0xCA, 0xCA, 0xC9, 0xC9, 0xA9, 0x00, 0x00,
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0x5C, 0x25, 0x1A, 0x19, 0x1E, 0x1C, 0x1F, 0x26,
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0x29, 0x2C, 0x32, 0x30, 0x2B, 0x00, 0x00, 0x00,
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0x9F, 0x4C, 0x48, 0x48, 0x48, 0x48, 0x4C, 0x55,
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0x5A, 0x5A, 0x59, 0x57, 0x54, 0x10, 0x00, 0x00,
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0xEA, 0x95, 0x94, 0x94, 0x95, 0x95, 0x95, 0x9B,
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0x9F, 0x9F, 0x99, 0x96, 0x95, 0x46, 0x00, 0x00,
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0xEA, 0xC9, 0xC9, 0xC9, 0xC9, 0xC9, 0xC9, 0xCA,
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0xCA, 0xCA, 0xC9, 0xCA, 0xC9, 0xA9, 0x00, 0x00,
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0x50, 0x16, 0xF0, 0x1A, 0x20, 0x1E, 0x1B, 0x1A,
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0x1D, 0x1E, 0x23, 0x22, 0x1D, 0x00, 0x00, 0x00,
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0x8F, 0x38, 0x38, 0x38, 0x39, 0x38, 0x3B, 0x44,
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0x49, 0x48, 0x46, 0x43, 0x41, 0x00, 0x00, 0x00,
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0xD7, 0x7F, 0x7E, 0x7E, 0x7F, 0x7F, 0x80, 0x85,
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0x89, 0x89, 0x83, 0x7F, 0x7F, 0x3B, 0x00, 0x00,
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0xD7, 0xB3, 0xB3, 0xB3, 0xB3, 0xB3, 0xB4, 0xB4,
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0xB4, 0xB4, 0xB4, 0xB4, 0xB4, 0x98, 0x00, 0x00,
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0x5C, 0x24, 0x19, 0x20, 0x26, 0x25, 0x1C, 0x1E,
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0x21, 0x23, 0x29, 0x2B, 0x2A, 0x00, 0x00, 0x00,
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0x9F, 0x4B, 0x44, 0x44, 0x48, 0x48, 0x49, 0x4A,
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0x4F, 0x4E, 0x4E, 0x55, 0x53, 0x10, 0x00, 0x00,
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0xE8, 0x8A, 0x85, 0x86, 0x8C, 0x95, 0x95, 0x95,
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0x95, 0x95, 0x95, 0x95, 0x93, 0x46, 0x00, 0x00,
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0xE8, 0xC2, 0xC0, 0xC0, 0xC2, 0xC6, 0xC9, 0xC9,
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0xC9, 0xC9, 0xC9, 0xC9, 0xC6, 0xA9, 0x00, 0x00,
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0x50, 0x16, 0x14, 0x1F, 0x25, 0x23, 0x1C, 0x15,
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0x19, 0x19, 0x1E, 0x1D, 0x1C, 0x00, 0x00, 0x00,
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0x8F, 0x38, 0x37, 0x39, 0x40, 0x3E, 0x38, 0x3E,
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0x42, 0x42, 0x3F, 0x41, 0x40, 0x00, 0x00, 0x00,
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0xD7, 0x7A, 0x75, 0x75, 0x7B, 0x7F, 0x7F, 0x80,
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0x81, 0x81, 0x7F, 0x7F, 0x7F, 0x3B, 0x00, 0x00,
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0xD7, 0xB2, 0xAF, 0xB0, 0xB2, 0xB3, 0xB3, 0xB4,
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0xB4, 0xB3, 0xB3, 0xB4, 0xB3, 0x98, 0x00, 0x00,
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0x4F, 0x1C, 0x12, 0x17, 0x1C, 0x1B, 0x15, 0x17,
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0x1A, 0x22, 0x27, 0x25, 0x23, 0x00, 0x00, 0x00,
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0x8F, 0x40, 0x38, 0x37, 0x38, 0x38, 0x38, 0x41,
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0x45, 0x45, 0x4A, 0x4A, 0x49, 0x00, 0x00, 0x00,
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0xD7, 0x7E, 0x79, 0x7A, 0x7F, 0x7F, 0x7F, 0x80,
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0x84, 0x84, 0x80, 0x80, 0x7F, 0x3B, 0x00, 0x00,
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0xD7, 0xB3, 0xB3, 0xB3, 0xB3, 0xB3, 0xB3, 0xB4,
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0xB4, 0xB4, 0xB3, 0xB4, 0xB3, 0x98, 0x00, 0x00,
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0x45, 0x15, 0x10, 0x19, 0x1F, 0x1D, 0x18, 0x14,
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0x17, 0x1B, 0x21, 0x1F, 0x1C, 0x00, 0x00, 0x00,
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0x85, 0x3A, 0x36, 0x36, 0x3A, 0x38, 0x37, 0x40,
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0x45, 0x44, 0x44, 0x44, 0x43, 0x00, 0x00, 0x00,
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0xCE, 0x7E, 0x79, 0x7A, 0x7F, 0x7F, 0x7F, 0x80,
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0x85, 0x85, 0x80, 0x80, 0x7F, 0x30, 0x00, 0x00,
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0xCE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAE,
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0xAF, 0xAF, 0xAE, 0xAE, 0xAE, 0x8E, 0x00, 0x00
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};
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#ifdef NST_MSVC_OPTIMIZE
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#pragma optimize("s", on)
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#endif
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Zapper::Zapper(const Cpu& c,Ppu& p)
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:
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Device (c,Api::Input::ZAPPER),
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arcade (false),
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ppu (p)
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{
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Zapper::Reset();
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}
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void Zapper::Reset()
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{
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shifter = 1;
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stream = 0x10;
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pos = ~0U;
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fire = 0;
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}
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void Zapper::Initialize(bool a)
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{
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arcade = a;
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}
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void Zapper::SaveState(State::Saver& saver,const byte id) const
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{
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const byte data[2] =
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{
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arcade ? shifter ? 0x1 : 0x3 : 0x0,
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arcade ? stream : 0x00
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};
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saver.Begin( AsciiId<'Z','P'>::R(0,0,id) ).Write( data ).End();
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}
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void Zapper::LoadState(State::Loader& loader,const dword id)
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{
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if (id == AsciiId<'Z','P'>::V)
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{
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State::Loader::Data<2> data( loader );
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if (data[0] & 0x1U)
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{
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shifter = ~data[0] >> 1 & 0x1;
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stream = data[1];
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}
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}
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}
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#ifdef NST_MSVC_OPTIMIZE
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#pragma optimize("", on)
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#endif
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uint Zapper::Poll()
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{
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if (input)
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{
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Controllers::Zapper& zapper = input->zapper;
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input = NULL;
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if (Controllers::Zapper::callback( zapper ))
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{
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fire = (zapper.fire ? arcade ? 0x80 : 0x10 : 0x00);
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if (zapper.y < Video::Screen::HEIGHT && zapper.x < Video::Screen::WIDTH)
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pos = zapper.y * Video::Screen::WIDTH + zapper.x;
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else
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pos = ~0U;
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}
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}
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if (pos < Video::Screen::WIDTH * Video::Screen::HEIGHT)
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{
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ppu.Update();
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uint pixel = ppu.GetPixelCycles();
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if (pos < pixel && pos >= pixel - PHOSPHOR_DECAY)
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{
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pixel = ppu.GetPixel( pos );
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if (arcade)
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{
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NST_COMPILE_ASSERT( LIGHT_SENSOR >= 0x3F );
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NST_VERIFY( pixel <= 0x3F );
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if (pixel > 0x3F)
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return pixel;
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pixel = ppu.GetYuvColor( pixel );
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}
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return GetLightMap( pixel );
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}
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}
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return 0;
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}
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void Zapper::Poke(const uint data)
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{
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if (arcade)
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{
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shifter = ~data & 0x1;
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stream = (Poll() >= LIGHT_SENSOR ? 0x40 : 0x00);
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stream |= 0x10 | fire;
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}
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}
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uint Zapper::Peek(uint)
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{
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if (!arcade)
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{
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uint data = (Poll() >= LIGHT_SENSOR ? 0x0 : 0x8);
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return data | fire;
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}
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else
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{
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const uint data = stream;
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stream >>= shifter;
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return data & 0x1;
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}
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}
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}
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}
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}
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