// /*************************************************************************** // The Disc Image Chef // ---------------------------------------------------------------------------- // // Filename : Dreamcast.cs // Author(s) : Natalia Portillo // // Component : Component // // --[ Description ] ---------------------------------------------------------- // // Description // // --[ License ] -------------------------------------------------------------- // // This library is free software; you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as // published by the Free Software Foundation; either version 2.1 of the // License, or (at your option) any later version. // // This library 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 // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, see . // // ---------------------------------------------------------------------------- // Copyright © 2011-2017 Natalia Portillo // ****************************************************************************/ using System; using System.Globalization; using System.Text; using DiscImageChef.Console; namespace DiscImageChef.Decoders.Sega { public class Dreamcast { public struct IPBin { public byte[] SegaHardwareID; //16 public byte[] maker_id; //16 // 0x010, "SEGA ENTERPRISES" public byte[] dreamcast_crc; //4 // 0x020, CRC of product_no and product_version public byte[] spare_space1; //1 // 0x024, " " public byte[] dreamcast_media; //6 // 0x025, "GD-ROM" public byte[] disc_no; //1 // 0x02B, Disc number public byte[] disc_no_separator; //1 // 0x02C, '/' public byte[] disc_total_nos; //1 // 0x02D, Total number of discs public byte[] spare_space2; //2 // 0x02E, " " public byte[] region_codes; //8 // 0x030, Region codes, space-filled public byte[] peripherals; //7 // 0x038, Supported peripherals, bitwise public byte[] product_no; //10 // 0x03C, Product number public byte[] product_version; //6 // 0x046, Product version public byte[] release_date; //8 // 0x04C, YYYYMMDD public byte[] spare_space3; //8 // 0x054, " " public byte[] boot_filename; //12 // 0x05C, Usually "1ST_READ.BIN" or "0WINCE.BIN " public byte[] producer; //16 // 0x068, Game producer, space-filled public byte[] product_name; //128 // 0x078, Game name, space-filled } public static IPBin? DecodeIPBin(byte[] ipbin_sector) { if(ipbin_sector == null) return null; if(ipbin_sector.Length < 512) return null; IPBin ipbin = new IPBin(); ipbin.SegaHardwareID = new byte[16]; // Declarations following ipbin.maker_id = new byte[16]; // 0x010, "SEGA ENTERPRISES" ipbin.dreamcast_crc = new byte[4]; // 0x020, CRC of product_no and product_version ipbin.spare_space1 = new byte[1]; // 0x024, " " ipbin.dreamcast_media = new byte[6]; // 0x025, "GD-ROM" ipbin.disc_no = new byte[1]; // 0x02B, Disc number ipbin.disc_no_separator = new byte[1]; // 0x02C, '/' ipbin.disc_total_nos = new byte[1]; // 0x02D, Total number of discs ipbin.spare_space2 = new byte[2]; // 0x02E, " " ipbin.region_codes = new byte[8]; // 0x030, Region codes, space-filled ipbin.peripherals = new byte[7]; // 0x038, Supported peripherals, bitwise ipbin.product_no = new byte[10]; // 0x03C, Product number ipbin.product_version = new byte[6]; // 0x046, Product version ipbin.release_date = new byte[8]; // 0x04C, YYYYMMDD ipbin.spare_space3 = new byte[8]; // 0x054, " " ipbin.boot_filename = new byte[12]; // 0x05C, Usually "1ST_READ.BIN" or "0WINCE.BIN " ipbin.producer = new byte[16]; // 0x068, Game producer, space-filled ipbin.product_name = new byte[128]; // 0x078, Game name, space-filled // Reading all data Array.Copy(ipbin_sector, 0x010, ipbin.maker_id, 0, 16); // "SEGA ENTERPRISES" Array.Copy(ipbin_sector, 0x020, ipbin.dreamcast_crc, 0, 4); // CRC of product_no and product_version (hex) Array.Copy(ipbin_sector, 0x024, ipbin.spare_space1, 0, 1); // " " Array.Copy(ipbin_sector, 0x025, ipbin.dreamcast_media, 0, 6); // "GD-ROM" Array.Copy(ipbin_sector, 0x02B, ipbin.disc_no, 0, 1); // Disc number Array.Copy(ipbin_sector, 0x02C, ipbin.disc_no_separator, 0, 1); // '/' Array.Copy(ipbin_sector, 0x02D, ipbin.disc_total_nos, 0, 1); // Total number of discs Array.Copy(ipbin_sector, 0x02E, ipbin.spare_space2, 0, 2); // " " Array.Copy(ipbin_sector, 0x030, ipbin.region_codes, 0, 8); // Region codes, space-filled Array.Copy(ipbin_sector, 0x038, ipbin.peripherals, 0, 7); // Supported peripherals, hexadecimal Array.Copy(ipbin_sector, 0x040, ipbin.product_no, 0, 10); // Product number Array.Copy(ipbin_sector, 0x04A, ipbin.product_version, 0, 6); // Product version Array.Copy(ipbin_sector, 0x050, ipbin.release_date, 0, 8); // YYYYMMDD Array.Copy(ipbin_sector, 0x058, ipbin.spare_space3, 0, 8); // " " Array.Copy(ipbin_sector, 0x060, ipbin.boot_filename, 0, 12); // Usually "1ST_READ.BIN" or "0WINCE.BIN " Array.Copy(ipbin_sector, 0x070, ipbin.producer, 0, 16); // Game producer, space-filled Array.Copy(ipbin_sector, 0x080, ipbin.product_name, 0, 128); // Game name, space-filled DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.maker_id = \"{0}\"", Encoding.ASCII.GetString(ipbin.maker_id)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.dreamcast_crc = 0x{0}", Encoding.ASCII.GetString(ipbin.dreamcast_crc)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.spare_space1 = \"{0}\"", Encoding.ASCII.GetString(ipbin.spare_space1)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.dreamcast_media = \"{0}\"", Encoding.ASCII.GetString(ipbin.dreamcast_media)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.disc_no = {0}", Encoding.ASCII.GetString(ipbin.disc_no)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.disc_no_separator = \"{0}\"", Encoding.ASCII.GetString(ipbin.disc_no_separator)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.disc_total_nos = \"{0}\"", Encoding.ASCII.GetString(ipbin.disc_total_nos)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.spare_space2 = \"{0}\"", Encoding.ASCII.GetString(ipbin.spare_space2)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.region_codes = \"{0}\"", Encoding.ASCII.GetString(ipbin.region_codes)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.peripherals = \"{0}\"", Encoding.ASCII.GetString(ipbin.peripherals)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.product_no = \"{0}\"", Encoding.ASCII.GetString(ipbin.product_no)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.product_version = \"{0}\"", Encoding.ASCII.GetString(ipbin.product_version)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.release_date = \"{0}\"", Encoding.ASCII.GetString(ipbin.release_date)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.spare_space3 = \"{0}\"", Encoding.ASCII.GetString(ipbin.spare_space3)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.boot_filename = \"{0}\"", Encoding.ASCII.GetString(ipbin.boot_filename)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.producer = \"{0}\"", Encoding.ASCII.GetString(ipbin.producer)); DicConsole.DebugWriteLine("ISO9660 plugin", "dreamcast_ipbin.product_name = \"{0}\"", Encoding.ASCII.GetString(ipbin.product_name)); string id = Encoding.ASCII.GetString(ipbin.SegaHardwareID); if(id == "SEGA SEGAKATANA ") return ipbin; else return null; } public static string Prettify(IPBin? decoded) { if(decoded == null) return null; IPBin ipbin = decoded.Value; StringBuilder IPBinInformation = new StringBuilder(); IPBinInformation.AppendLine("--------------------------------"); IPBinInformation.AppendLine("SEGA IP.BIN INFORMATION:"); IPBinInformation.AppendLine("--------------------------------"); // Decoding all data DateTime ipbindate; CultureInfo provider = CultureInfo.InvariantCulture; ipbindate = DateTime.ParseExact(Encoding.ASCII.GetString(ipbin.release_date), "yyyyMMdd", provider); IPBinInformation.AppendFormat("Product name: {0}", Encoding.ASCII.GetString(ipbin.product_name)).AppendLine(); IPBinInformation.AppendFormat("Product version: {0}", Encoding.ASCII.GetString(ipbin.product_version)).AppendLine(); IPBinInformation.AppendFormat("Producer: {0}", Encoding.ASCII.GetString(ipbin.producer)).AppendLine(); IPBinInformation.AppendFormat("Disc media: {0}", Encoding.ASCII.GetString(ipbin.dreamcast_media)).AppendLine(); IPBinInformation.AppendFormat("Disc number {0} of {1}", Encoding.ASCII.GetString(ipbin.disc_no), Encoding.ASCII.GetString(ipbin.disc_total_nos)).AppendLine(); IPBinInformation.AppendFormat("Release date: {0}", ipbindate).AppendLine(); switch(Encoding.ASCII.GetString(ipbin.boot_filename)) { case "1ST_READ.BIN": IPBinInformation.AppendLine("Disc boots natively."); break; case "0WINCE.BIN ": IPBinInformation.AppendLine("Disc boots using Windows CE."); break; default: IPBinInformation.AppendFormat("Disc boots using unknown loader: {0}.", Encoding.ASCII.GetString(ipbin.boot_filename)).AppendLine(); break; } IPBinInformation.AppendLine("Regions supported:"); foreach(byte region in ipbin.region_codes) { switch((char)region) { case 'J': IPBinInformation.AppendLine("Japanese NTSC."); break; case 'U': IPBinInformation.AppendLine("North America NTSC."); break; case 'E': IPBinInformation.AppendLine("Europe PAL."); break; case ' ': break; default: IPBinInformation.AppendFormat("Game supports unknown region {0}.", region).AppendLine(); break; } } int iPeripherals = int.Parse(Encoding.ASCII.GetString(ipbin.peripherals), NumberStyles.HexNumber); if((iPeripherals & 0x00000001) == 0x00000001) IPBinInformation.AppendLine("Game uses Windows CE."); IPBinInformation.AppendFormat("Peripherals:").AppendLine(); if((iPeripherals & 0x00000010) == 0x00000010) IPBinInformation.AppendLine("Game supports the VGA Box."); if((iPeripherals & 0x00000100) == 0x00000100) IPBinInformation.AppendLine("Game supports other expansion."); if((iPeripherals & 0x00000200) == 0x00000200) IPBinInformation.AppendLine("Game supports Puru Puru pack."); if((iPeripherals & 0x00000400) == 0x00000400) IPBinInformation.AppendLine("Game supports Mike Device."); if((iPeripherals & 0x00000800) == 0x00000800) IPBinInformation.AppendLine("Game supports Memory Card."); if((iPeripherals & 0x00001000) == 0x00001000) IPBinInformation.AppendLine("Game requires A + B + Start buttons and D-Pad."); if((iPeripherals & 0x00002000) == 0x00002000) IPBinInformation.AppendLine("Game requires C button."); if((iPeripherals & 0x00004000) == 0x00004000) IPBinInformation.AppendLine("Game requires D button."); if((iPeripherals & 0x00008000) == 0x00008000) IPBinInformation.AppendLine("Game requires X button."); if((iPeripherals & 0x00010000) == 0x00010000) IPBinInformation.AppendLine("Game requires Y button."); if((iPeripherals & 0x00020000) == 0x00020000) IPBinInformation.AppendLine("Game requires Z button."); if((iPeripherals & 0x00040000) == 0x00040000) IPBinInformation.AppendLine("Game requires expanded direction buttons."); if((iPeripherals & 0x00080000) == 0x00080000) IPBinInformation.AppendLine("Game requires analog R trigger."); if((iPeripherals & 0x00100000) == 0x00100000) IPBinInformation.AppendLine("Game requires analog L trigger."); if((iPeripherals & 0x00200000) == 0x00200000) IPBinInformation.AppendLine("Game requires analog horizontal controller."); if((iPeripherals & 0x00400000) == 0x00400000) IPBinInformation.AppendLine("Game requires analog vertical controller."); if((iPeripherals & 0x00800000) == 0x00800000) IPBinInformation.AppendLine("Game requires expanded analog horizontal controller."); if((iPeripherals & 0x01000000) == 0x01000000) IPBinInformation.AppendLine("Game requires expanded analog vertical controller."); if((iPeripherals & 0x02000000) == 0x02000000) IPBinInformation.AppendLine("Game supports Gun."); if((iPeripherals & 0x04000000) == 0x04000000) IPBinInformation.AppendLine("Game supports Keyboard."); if((iPeripherals & 0x08000000) == 0x08000000) IPBinInformation.AppendLine("Game supports Mouse."); if((iPeripherals & 0xF00000EE) != 0) IPBinInformation.AppendFormat("Game supports unknown peripherals mask {0:X2}", (iPeripherals & 0xF00000EE)); return IPBinInformation.ToString(); } } }