144 lines
6.8 KiB
C++
144 lines
6.8 KiB
C++
/****************************************************************************
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* *
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* Project64 - A Nintendo 64 emulator. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2012 Project64. All rights reserved. *
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* *
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* License: *
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* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
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* *
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****************************************************************************/
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#pragma once
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#include <Project64-core/N64System/N64Types.h>
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#include <Common/stdtypes.h>
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class CN64Disk
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{
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public:
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CN64Disk();
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~CN64Disk();
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bool LoadDiskImage(const char * FileLoc);
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bool SaveDiskImage();
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void SwapDiskImage(const char * FileLoc);
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static bool IsValidDiskImage(uint8_t Test[4]);
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void SaveDiskSettingID(bool temp);
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void ClearDiskSettingID();
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uint8_t * GetDiskAddress() { return m_DiskImage; }
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uint8_t * GetDiskAddressBuffer() { return m_DiskImage + m_DiskBufAddress; }
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uint8_t * GetDiskAddressSys() { return m_DiskImage + m_DiskSysAddress; }
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uint8_t * GetDiskAddressID() { return m_DiskImage + m_DiskIDAddress; }
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uint8_t * GetDiskHeader() { return m_DiskHeader; }
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void SetDiskAddressBuffer(uint32_t address) { m_DiskBufAddress = address; }
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uint32_t GetDiskAddressBlock(uint16_t head, uint16_t track, uint16_t block, uint16_t sector, uint16_t sectorsize);
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stdstr GetRomName() const { return m_RomName; }
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stdstr GetFileName() const { return m_FileName; }
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stdstr GetDiskIdent() const { return m_DiskIdent; }
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Country GetCountry() const { return m_Country; }
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void UnallocateDiskImage();
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LanguageStringID GetError() const { return m_ErrorMsg; }
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private:
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bool AllocateDiskImage(uint32_t DiskFileSize);
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bool AllocateDiskHeader();
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bool AllocateAndLoadDiskImage(const char * FileLoc);
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void ByteSwapDisk();
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void ForceByteSwapDisk();
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void SetError(LanguageStringID ErrorMsg);
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void DetectSystemArea();
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bool IsSysSectorGood(uint32_t block, uint32_t sectorsize);
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Country GetDiskCountryCode();
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void InitSysDataD64();
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void DeinitSysDataD64();
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void GenerateLBAToPhysTable();
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uint32_t LBAToVZone(uint32_t lba);
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uint32_t LBAToByte(uint32_t lba, uint32_t nlbas);
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uint16_t LBAToPhys(uint32_t lba);
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uint16_t PhysToLBA(uint16_t head, uint16_t track, uint16_t block);
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//constant values
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enum { ReadFromRomSection = 0x400000, MameFormatSize = 0x0435B0C0, SDKFormatSize = 0x03DEC800,
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DiskFormatMAME = 0x0, DiskFormatSDK = 0x1, DiskFormatD64 = 0x2 };
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//class variables
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CFile m_DiskFile;
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uint8_t * m_DiskImage;
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uint8_t * m_DiskImageBase;
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uint8_t * m_DiskHeader;
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uint8_t * m_DiskHeaderBase;
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uint32_t m_DiskFileSize;
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uint32_t m_DiskBufAddress;
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uint32_t m_DiskSysAddress;
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uint32_t m_DiskIDAddress;
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LanguageStringID m_ErrorMsg;
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Country m_Country;
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stdstr m_RomName, m_FileName, m_DiskIdent;
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uint8_t m_DiskFormat; //0 = MAME, 1 = SDK, 2 = D64
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uint8_t m_DiskType;
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//Disk Defines
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#define MAX_LBA 0x10DB
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#define SIZE_LBA MAX_LBA+1
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#define SYSTEM_LBAS 24
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#define DISKID_LBA 14
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#define DISK_COUNTRY_JPN 0xE848D316
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#define DISK_COUNTRY_USA 0x2263EE56
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#define DISK_COUNTRY_DEV 0x00000000
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#define SECTORS_PER_BLOCK 85
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#define BLOCKS_PER_TRACK 2
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const uint32_t SECTORSIZE[16] = { 232, 216, 208, 192, 176, 160, 144, 128,
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216, 208, 192, 176, 160, 144, 128, 112 };
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const uint32_t SECTORSIZE_P[9] = { 232, 216, 208, 192, 176, 160, 144, 128, 112 };
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const uint32_t ZoneTracks[16] = { 158, 158, 149, 149, 149, 149, 149, 114,
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158, 158, 149, 149, 149, 149, 149, 114 };
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const uint16_t VZONE_LBA_TBL[7][16] = {
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{0x0124, 0x0248, 0x035A, 0x047E, 0x05A2, 0x06B4, 0x07C6, 0x08D8, 0x09EA, 0x0AB6, 0x0B82, 0x0C94, 0x0DA6, 0x0EB8, 0x0FCA, 0x10DC},
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{0x0124, 0x0248, 0x035A, 0x046C, 0x057E, 0x06A2, 0x07C6, 0x08D8, 0x09EA, 0x0AFC, 0x0BC8, 0x0C94, 0x0DA6, 0x0EB8, 0x0FCA, 0x10DC},
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{0x0124, 0x0248, 0x035A, 0x046C, 0x057E, 0x0690, 0x07A2, 0x08C6, 0x09EA, 0x0AFC, 0x0C0E, 0x0CDA, 0x0DA6, 0x0EB8, 0x0FCA, 0x10DC},
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{0x0124, 0x0248, 0x035A, 0x046C, 0x057E, 0x0690, 0x07A2, 0x08B4, 0x09C6, 0x0AEA, 0x0C0E, 0x0D20, 0x0DEC, 0x0EB8, 0x0FCA, 0x10DC},
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{0x0124, 0x0248, 0x035A, 0x046C, 0x057E, 0x0690, 0x07A2, 0x08B4, 0x09C6, 0x0AD8, 0x0BEA, 0x0D0E, 0x0E32, 0x0EFE, 0x0FCA, 0x10DC},
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{0x0124, 0x0248, 0x035A, 0x046C, 0x057E, 0x0690, 0x07A2, 0x086E, 0x0980, 0x0A92, 0x0BA4, 0x0CB6, 0x0DC8, 0x0EEC, 0x1010, 0x10DC},
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{0x0124, 0x0248, 0x035A, 0x046C, 0x057E, 0x0690, 0x07A2, 0x086E, 0x093A, 0x0A4C, 0x0B5E, 0x0C70, 0x0D82, 0x0E94, 0x0FB8, 0x10DC}
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};
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const uint8_t VZONE_PZONE_TBL[7][16] = {
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{0x0, 0x1, 0x2, 0x9, 0x8, 0x3, 0x4, 0x5, 0x6, 0x7, 0xF, 0xE, 0xD, 0xC, 0xB, 0xA},
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{0x0, 0x1, 0x2, 0x3, 0xA, 0x9, 0x8, 0x4, 0x5, 0x6, 0x7, 0xF, 0xE, 0xD, 0xC, 0xB},
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{0x0, 0x1, 0x2, 0x3, 0x4, 0xB, 0xA, 0x9, 0x8, 0x5, 0x6, 0x7, 0xF, 0xE, 0xD, 0xC},
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{0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0xC, 0xB, 0xA, 0x9, 0x8, 0x6, 0x7, 0xF, 0xE, 0xD},
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{0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xD, 0xC, 0xB, 0xA, 0x9, 0x8, 0x7, 0xF, 0xE},
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{0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0xE, 0xD, 0xC, 0xB, 0xA, 0x9, 0x8, 0xF},
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{0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0xF, 0xE, 0xD, 0xC, 0xB, 0xA, 0x9, 0x8}
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};
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const uint16_t SCYL_ZONE_TBL[2][8] = {
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{0x000, 0x09E, 0x13C, 0x1D1, 0x266, 0x2FB, 0x390, 0x425},
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{0x091, 0x12F, 0x1C4, 0x259, 0x2EE, 0x383, 0x418, 0x48A}
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};
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const uint16_t OUTERCYL_TBL[8] = { 0x000, 0x09E, 0x13C, 0x1D1, 0x266, 0x2FB, 0x390, 0x425 };
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const uint16_t RAM_START_LBA[7] = { 0x5A2, 0x7C6, 0x9EA, 0xC0E, 0xE32, 0x1010, 0x10DC };
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#define BLOCKSIZE(_zone) SECTORSIZE[_zone] * SECTORS_PER_BLOCK
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#define TRACKSIZE(_zone) BLOCKSIZE(_zone) * BLOCKS_PER_TRACK
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#define ZONESIZE(_zone) TRACKSIZE(_zone) * ZoneTracks[_zone]
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#define VZONESIZE(_zone) TRACKSIZE(_zone) * (ZoneTracks[_zone] - 0xC)
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#define VZoneToPZone(x, y) VZONE_PZONE_TBL[y][x]
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//Used for MAME format
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const uint32_t MAMEStartOffset[16] =
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{ 0x0, 0x5F15E0, 0xB79D00, 0x10801A0, 0x1523720, 0x1963D80, 0x1D414C0, 0x20BBCE0,
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0x23196E0, 0x28A1E00, 0x2DF5DC0, 0x3299340, 0x36D99A0, 0x3AB70E0, 0x3E31900, 0x4149200 };
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//Used for SDK and D64 format
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uint16_t LBAToPhysTable[SIZE_LBA];
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}; |