//////////////////////////////////////////////////////////////////////////////////////// // // Nestopia - NES/Famicom emulator written in C++ // // Copyright (C) 2003-2008 Martin Freij // // This file is part of Nestopia. // // Nestopia is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // Nestopia 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 Nestopia; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // //////////////////////////////////////////////////////////////////////////////////////// #include "NstInpDevice.hpp" #include "../NstPpu.hpp" #include "NstInpZapper.hpp" namespace Nes { namespace Core { namespace Input { const byte Zapper::lightMap[Video::Screen::PALETTE] = { 0x66, 0x28, 0x23, 0x24, 0x29, 0x28, 0x25, 0x2B, 0x2F, 0x2E, 0x30, 0x2F, 0x2E, 0x00, 0x00, 0x00, 0xAD, 0x56, 0x56, 0x56, 0x56, 0x56, 0x57, 0x5C, 0x60, 0x60, 0x5B, 0x5A, 0x59, 0x00, 0x00, 0x00, 0xFF, 0xA2, 0x9D, 0x9D, 0xA3, 0xA4, 0xA5, 0xA7, 0xA9, 0xA8, 0xA7, 0xA7, 0xA7, 0x4F, 0x00, 0x00, 0xFF, 0xD9, 0xD7, 0xD8, 0xDA, 0xDA, 0xDB, 0xDC, 0xDC, 0xDC, 0xDB, 0xDC, 0xDC, 0xB8, 0x00, 0x00, 0x5C, 0x19, 0x1B, 0x26, 0x2C, 0x2B, 0x24, 0x22, 0x25, 0x26, 0x23, 0x22, 0x21, 0x00, 0x00, 0x00, 0xA0, 0x48, 0x48, 0x48, 0x4A, 0x49, 0x49, 0x50, 0x55, 0x54, 0x4E, 0x49, 0x49, 0x20, 0x00, 0x00, 0xE6, 0x92, 0x8D, 0x8E, 0x90, 0x8A, 0x8C, 0x95, 0x99, 0x98, 0x96, 0x95, 0x95, 0x46, 0x00, 0x00, 0xE6, 0xC9, 0xC7, 0xC8, 0xC4, 0xC1, 0xC1, 0xC5, 0xC9, 0xCA, 0xCA, 0xC9, 0xC9, 0xA9, 0x00, 0x00, 0x5C, 0x25, 0x1A, 0x19, 0x1E, 0x1C, 0x1F, 0x26, 0x29, 0x2C, 0x32, 0x30, 0x2B, 0x00, 0x00, 0x00, 0x9F, 0x4C, 0x48, 0x48, 0x48, 0x48, 0x4C, 0x55, 0x5A, 0x5A, 0x59, 0x57, 0x54, 0x10, 0x00, 0x00, 0xEA, 0x95, 0x94, 0x94, 0x95, 0x95, 0x95, 0x9B, 0x9F, 0x9F, 0x99, 0x96, 0x95, 0x46, 0x00, 0x00, 0xEA, 0xC9, 0xC9, 0xC9, 0xC9, 0xC9, 0xC9, 0xCA, 0xCA, 0xCA, 0xC9, 0xCA, 0xC9, 0xA9, 0x00, 0x00, 0x50, 0x16, 0xF0, 0x1A, 0x20, 0x1E, 0x1B, 0x1A, 0x1D, 0x1E, 0x23, 0x22, 0x1D, 0x00, 0x00, 0x00, 0x8F, 0x38, 0x38, 0x38, 0x39, 0x38, 0x3B, 0x44, 0x49, 0x48, 0x46, 0x43, 0x41, 0x00, 0x00, 0x00, 0xD7, 0x7F, 0x7E, 0x7E, 0x7F, 0x7F, 0x80, 0x85, 0x89, 0x89, 0x83, 0x7F, 0x7F, 0x3B, 0x00, 0x00, 0xD7, 0xB3, 0xB3, 0xB3, 0xB3, 0xB3, 0xB4, 0xB4, 0xB4, 0xB4, 0xB4, 0xB4, 0xB4, 0x98, 0x00, 0x00, 0x5C, 0x24, 0x19, 0x20, 0x26, 0x25, 0x1C, 0x1E, 0x21, 0x23, 0x29, 0x2B, 0x2A, 0x00, 0x00, 0x00, 0x9F, 0x4B, 0x44, 0x44, 0x48, 0x48, 0x49, 0x4A, 0x4F, 0x4E, 0x4E, 0x55, 0x53, 0x10, 0x00, 0x00, 0xE8, 0x8A, 0x85, 0x86, 0x8C, 0x95, 0x95, 0x95, 0x95, 0x95, 0x95, 0x95, 0x93, 0x46, 0x00, 0x00, 0xE8, 0xC2, 0xC0, 0xC0, 0xC2, 0xC6, 0xC9, 0xC9, 0xC9, 0xC9, 0xC9, 0xC9, 0xC6, 0xA9, 0x00, 0x00, 0x50, 0x16, 0x14, 0x1F, 0x25, 0x23, 0x1C, 0x15, 0x19, 0x19, 0x1E, 0x1D, 0x1C, 0x00, 0x00, 0x00, 0x8F, 0x38, 0x37, 0x39, 0x40, 0x3E, 0x38, 0x3E, 0x42, 0x42, 0x3F, 0x41, 0x40, 0x00, 0x00, 0x00, 0xD7, 0x7A, 0x75, 0x75, 0x7B, 0x7F, 0x7F, 0x80, 0x81, 0x81, 0x7F, 0x7F, 0x7F, 0x3B, 0x00, 0x00, 0xD7, 0xB2, 0xAF, 0xB0, 0xB2, 0xB3, 0xB3, 0xB4, 0xB4, 0xB3, 0xB3, 0xB4, 0xB3, 0x98, 0x00, 0x00, 0x4F, 0x1C, 0x12, 0x17, 0x1C, 0x1B, 0x15, 0x17, 0x1A, 0x22, 0x27, 0x25, 0x23, 0x00, 0x00, 0x00, 0x8F, 0x40, 0x38, 0x37, 0x38, 0x38, 0x38, 0x41, 0x45, 0x45, 0x4A, 0x4A, 0x49, 0x00, 0x00, 0x00, 0xD7, 0x7E, 0x79, 0x7A, 0x7F, 0x7F, 0x7F, 0x80, 0x84, 0x84, 0x80, 0x80, 0x7F, 0x3B, 0x00, 0x00, 0xD7, 0xB3, 0xB3, 0xB3, 0xB3, 0xB3, 0xB3, 0xB4, 0xB4, 0xB4, 0xB3, 0xB4, 0xB3, 0x98, 0x00, 0x00, 0x45, 0x15, 0x10, 0x19, 0x1F, 0x1D, 0x18, 0x14, 0x17, 0x1B, 0x21, 0x1F, 0x1C, 0x00, 0x00, 0x00, 0x85, 0x3A, 0x36, 0x36, 0x3A, 0x38, 0x37, 0x40, 0x45, 0x44, 0x44, 0x44, 0x43, 0x00, 0x00, 0x00, 0xCE, 0x7E, 0x79, 0x7A, 0x7F, 0x7F, 0x7F, 0x80, 0x85, 0x85, 0x80, 0x80, 0x7F, 0x30, 0x00, 0x00, 0xCE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAE, 0xAF, 0xAF, 0xAE, 0xAE, 0xAE, 0x8E, 0x00, 0x00 }; #ifdef NST_MSVC_OPTIMIZE #pragma optimize("s", on) #endif Zapper::Zapper(const Cpu& c,Ppu& p) : Device (c,Api::Input::ZAPPER), arcade (false), ppu (p) { Zapper::Reset(); } void Zapper::Reset() { shifter = 1; stream = 0x10; pos = ~0U; fire = 0; } void Zapper::Initialize(bool a) { arcade = a; } void Zapper::SaveState(State::Saver& saver,const byte id) const { const byte data[2] = { arcade ? shifter ? 0x1 : 0x3 : 0x0, arcade ? stream : 0x00 }; saver.Begin( AsciiId<'Z','P'>::R(0,0,id) ).Write( data ).End(); } void Zapper::LoadState(State::Loader& loader,const dword id) { if (id == AsciiId<'Z','P'>::V) { State::Loader::Data<2> data( loader ); if (data[0] & 0x1U) { shifter = ~data[0] >> 1 & 0x1; stream = data[1]; } } } #ifdef NST_MSVC_OPTIMIZE #pragma optimize("", on) #endif uint Zapper::Poll() { if (input) { Controllers::Zapper& zapper = input->zapper; input = NULL; if (Controllers::Zapper::callback( zapper )) { fire = (zapper.fire ? arcade ? 0x80 : 0x10 : 0x00); if (zapper.y < Video::Screen::HEIGHT && zapper.x < Video::Screen::WIDTH) pos = zapper.y * Video::Screen::WIDTH + zapper.x; else pos = ~0U; } } if (pos < Video::Screen::WIDTH * Video::Screen::HEIGHT) { ppu.Update(); uint pixel = ppu.GetPixelCycles(); if (pos < pixel && pos >= pixel - PHOSPHOR_DECAY) { pixel = ppu.GetPixel( pos ); if (arcade) { NST_COMPILE_ASSERT( LIGHT_SENSOR >= 0x3F ); NST_VERIFY( pixel <= 0x3F ); if (pixel > 0x3F) return pixel; pixel = ppu.GetYuvColor( pixel ); } return GetLightMap( pixel ); } } return 0; } void Zapper::Poke(const uint data) { if (arcade) { shifter = ~data & 0x1; stream = (Poll() >= LIGHT_SENSOR ? 0x40 : 0x00); stream |= 0x10 | fire; } } uint Zapper::Peek(uint) { if (!arcade) { uint data = (Poll() >= LIGHT_SENSOR ? 0x0 : 0x8); return data | fire; } else { const uint data = stream; stream >>= shifter; return data & 0x1; } } } } }