197 lines
6.8 KiB
C++
197 lines
6.8 KiB
C++
#include "stdafx.h"
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#include "Mempak.h"
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#include <stdio.h>
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#include <Common/path.h>
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CMempak::CMempak()
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{
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for (uint32_t i = 0; i < sizeof(m_Formatted) / sizeof(m_Formatted[0]); i++)
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{
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m_Formatted[i] = 0;
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m_SaveExists[i] = true;
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}
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memset(m_Mempaks, 0, sizeof(m_Mempaks));
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}
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void CMempak::LoadMempak(int32_t Control, bool Create)
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{
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stdstr MempakName;
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MempakName.Format("%s_Cont_%d", g_Settings->LoadStringVal(Game_GameName).c_str(), Control + 1);
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CPath MempakPath(g_Settings->LoadStringVal(Directory_NativeSave).c_str(), stdstr_f("%s.mpk", MempakName.c_str()).c_str());
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if (g_Settings->LoadBool(Setting_UniqueSaveDir))
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{
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MempakPath.AppendDirectory(g_Settings->LoadStringVal(Game_UniqueSaveDir).c_str());
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}
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#ifdef _WIN32
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MempakPath.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
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#endif
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if (!Create && !MempakPath.Exists())
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{
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if (!m_Formatted[Control])
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{
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CMempak::Format(Control);
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m_Formatted[Control] = true;
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}
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m_SaveExists[Control] = false;
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return;
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}
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if (!MempakPath.DirectoryExists())
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{
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MempakPath.DirectoryCreate();
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}
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bool formatMempak = !MempakPath.Exists();
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m_MempakHandle[Control].Open(MempakPath, CFileBase::modeReadWrite | CFileBase::modeNoTruncate | CFileBase::modeCreate);
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m_MempakHandle[Control].SeekToBegin();
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if (formatMempak)
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{
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if (!m_Formatted[Control])
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{
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CMempak::Format(Control);
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m_Formatted[Control] = true;
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}
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m_MempakHandle[Control].Write(m_Mempaks[Control], 0x8000);
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}
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else
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{
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m_MempakHandle[Control].Read(m_Mempaks[Control], 0x8000);
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m_Formatted[Control] = true;
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}
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}
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void CMempak::Format(int32_t Control)
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{
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static const uint8_t Initialize[] = {
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0x81, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
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0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0xFF, 0xFF, 0xFF, 0xFF,
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0x05, 0x1A, 0x5F, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0xFF,
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0x66, 0x25, 0x99, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF, 0x05, 0x1A, 0x5F, 0x13, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0x01, 0xFF, 0x66, 0x25, 0x99, 0xCD, 0xFF, 0xFF, 0xFF, 0xFF,
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0x05, 0x1A, 0x5F, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0xFF,
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0x66, 0x25, 0x99, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF, 0x05, 0x1A, 0x5F, 0x13, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0x01, 0xFF, 0x66, 0x25, 0x99, 0xCD, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03,
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0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03, 0x00, 0x03
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};
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memcpy(&m_Mempaks[Control][0], &Initialize[0], sizeof(Initialize));
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for (size_t count = sizeof(Initialize); count < 128 * 256; count++)
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{
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m_Mempaks[Control][count] = 0x00;
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}
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}
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uint8_t CMempak::CalculateCrc(uint8_t * DataToCrc)
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{
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uint32_t Count;
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uint32_t XorTap;
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int32_t Length;
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uint8_t CRC = 0;
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for (Count = 0; Count < 0x21; Count++)
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{
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for (Length = 0x80; Length >= 1; Length >>= 1)
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{
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XorTap = (CRC & 0x80) ? 0x85 : 0x00;
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CRC <<= 1;
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if (Count == 0x20)
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{
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CRC &= 0xFF;
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}
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else
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{
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if ((*DataToCrc & Length) != 0)
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{
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CRC |= 1;
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}
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}
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CRC ^= XorTap;
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}
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DataToCrc++;
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}
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return CRC;
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}
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void CMempak::ReadFrom(int32_t Control, uint32_t address, uint8_t * data)
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{
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if (address < 0x8000)
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{
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if (m_SaveExists[Control] && !m_MempakHandle[Control].IsOpen())
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{
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LoadMempak(Control, false);
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}
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memcpy(data, &m_Mempaks[Control][address], 0x20);
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}
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else
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{
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memset(data, 0x00, 0x20);
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// Rumble pack area
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}
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}
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void CMempak::WriteTo(int32_t Control, uint32_t address, uint8_t * data)
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{
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if (address < 0x8000)
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{
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if (!m_Formatted[Control])
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{
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CMempak::Format(Control);
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m_Formatted[Control] = true;
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}
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if (memcmp(&m_Mempaks[Control][address], data, 0x20) != 0)
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{
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if (!m_MempakHandle[Control].IsOpen())
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{
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LoadMempak(Control, true);
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}
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memcpy(&m_Mempaks[Control][address], data, 0x20);
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m_MempakHandle[Control].Seek(address, CFile::begin);
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m_MempakHandle[Control].Write(data, 0x20);
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}
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}
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else
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{
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// Rumble pack area
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}
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} |