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project64/Source/Project64-core/N64System/Enhancement/Enhancements.cpp

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/****************************************************************************
* *
* Project64 - A Nintendo 64 emulator. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2012 Project64. All rights reserved. *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* *
****************************************************************************/
#include "stdafx.h"
#include <Project64-core\N64System\Enhancement\Enhancements.h>
#include <Project64-core\N64System\Enhancement\EnhancementFile.h>
#include <Project64-core\N64System\Mips\MemoryVirtualMem.h>
#include <Project64-core\N64System\Recompiler\RecompilerClass.h>
#include <Project64-core\N64System\SystemGlobals.h>
#include <Common\path.h>
#include <Common\Util.h>
CEnhancements::CEnhancements() :
m_ScanFileThread(stScanFileThread),
m_Scan(true),
m_Scanned(false),
m_UpdateCheats(false)
{
m_ScanFileThread.Start(this);
g_Settings->RegisterChangeCB(Game_IniKey, this, stGameChanged);
}
CEnhancements::~CEnhancements()
{
g_Settings->UnregisterChangeCB(Game_IniKey, this, stGameChanged);
m_Scan = false;
WaitScanDone();
}
void CEnhancements::ApplyActive(CMipsMemoryVM & MMU, bool UpdateChanges)
{
CGuard Guard(m_CS);
if (m_UpdateCheats && UpdateChanges)
{
m_UpdateCheats = false;
LoadCheats(&MMU);
}
for (size_t i = 0, n = m_ActiveCodes.size(); i < n; i++)
{
CODES & CodeEntry = m_ActiveCodes[i];
for (uint32_t CurrentEntry = 0; CurrentEntry < CodeEntry.size();)
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry);
CurrentEntry += EntrySize(CodeEntry, CurrentEntry);
}
}
}
void CEnhancements::ApplyGSButton(CMipsMemoryVM & MMU, bool /*UpdateChanges*/)
{
for (size_t i = 0, n = m_ActiveCodes.size(); i < n; i++)
{
CODES & CodeEntry = m_ActiveCodes[i];
for (size_t CurrentEntry = 0; CurrentEntry < CodeEntry.size(); CurrentEntry++)
{
const GAMESHARK_CODE & Code = CodeEntry[CurrentEntry];
switch (Code.Command & 0xFF000000) {
case 0x88000000:
ModifyMemory8(MMU, 0x80000000 | (Code.Command & 0xFFFFFF), (uint8_t)Code.Value);
break;
case 0x89000000:
ModifyMemory16(MMU, 0x80000000 | (Code.Command & 0xFFFFFF), Code.Value);
break;
// Xplorer64
case 0xA8000000:
ModifyMemory8(MMU, 0x80000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), (uint8_t)ConvertXP64Value(Code.Value));
break;
case 0xA9000000:
ModifyMemory16(MMU, 0x80000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), ConvertXP64Value(Code.Value));
break;
}
}
}
}
void CEnhancements::UpdateCheats(const CEnhancementList & Cheats)
{
std::string GameName = g_Settings->LoadStringVal(Rdb_GoodName);
CPath OutFile(g_Settings->LoadStringVal(SupportFile_UserCheatDir), stdstr_f("%s.cht", GameName.c_str()).c_str());
#ifdef _WIN32
OutFile.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
#endif
CGuard Guard(m_CS);
if (m_CheatFile.get() == nullptr || strcmp(m_CheatFile->FileName(), OutFile) != 0)
{
if (!OutFile.DirectoryExists())
{
OutFile.DirectoryCreate();
}
SectionFiles::const_iterator CheatFileItr = m_CheatFiles.find(m_SectionIdent);
if (m_CheatFiles.end() != CheatFileItr)
{
m_CheatFiles.erase(CheatFileItr);
}
m_CheatFile = std::make_unique<CEnhancmentFile>(OutFile, "Cheat");
m_CheatFiles.insert(SectionFiles::value_type(m_SectionIdent, OutFile));
}
m_CheatFile->SetName(m_SectionIdent.c_str(), GameName.c_str());
m_CheatFile->RemoveEnhancements(m_SectionIdent.c_str());
for (CEnhancementList::const_iterator itr = Cheats.begin(); itr != Cheats.end(); itr++)
{
const CEnhancement & Enhancement = itr->second;
if (!Enhancement.Valid())
{
g_Notify->BreakPoint(__FILE__, __LINE__);
continue;
}
m_CheatFile->AddEnhancement(m_SectionIdent.c_str(), Enhancement);
}
m_CheatFile->SaveCurrentSection();
m_UpdateCheats = true;
}
void CEnhancements::UpdateCheats(void)
{
m_UpdateCheats = true;
}
void CEnhancements::UpdateEnhancements(const CEnhancementList & Enhancements)
{
std::string GameName = g_Settings->LoadStringVal(Rdb_GoodName);
CPath OutFile(g_Settings->LoadStringVal(SupportFile_UserEnhancementDir), stdstr_f("%s.enh", GameName.c_str()).c_str());
#ifdef _WIN32
OutFile.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
#endif
CGuard Guard(m_CS);
if (m_EnhancementFile.get() == nullptr ||strcmp(m_EnhancementFile->FileName(), OutFile) != 0)
{
if (!OutFile.DirectoryExists())
{
OutFile.DirectoryCreate();
}
SectionFiles::const_iterator EnhancementFileItr = m_EnhancementFiles.find(m_SectionIdent);
if (m_EnhancementFiles.end() != EnhancementFileItr)
{
m_EnhancementFiles.erase(EnhancementFileItr);
}
m_EnhancementFile = std::make_unique<CEnhancmentFile>(OutFile, "Enhancement");
m_EnhancementFiles.insert(SectionFiles::value_type(m_SectionIdent, OutFile));
}
m_EnhancementFile->SetName(m_SectionIdent.c_str(), GameName.c_str());
m_EnhancementFile->RemoveEnhancements(m_SectionIdent.c_str());
for (CEnhancementList::const_iterator itr = Enhancements.begin(); itr != Enhancements.end(); itr++)
{
const CEnhancement & Enhancement = itr->second;
if (!Enhancement.Valid())
{
g_Notify->BreakPoint(__FILE__, __LINE__);
continue;
}
m_EnhancementFile->AddEnhancement(m_SectionIdent.c_str(), Enhancement);
}
m_EnhancementFile->SaveCurrentSection();
m_UpdateCheats = true;
}
void CEnhancements::ResetCodes(CMipsMemoryVM * MMU)
{
m_ActiveCodes.clear();
if (MMU != nullptr)
{
for (ORIGINAL_VALUES8::iterator itr = m_OriginalValues8.begin(); itr != m_OriginalValues8.end(); itr++)
{
uint8_t CurrentValue;
if (MMU->LB_VAddr(itr->first, CurrentValue) && itr->second.Changed == CurrentValue)
{
MMU->SB_VAddr(itr->first, itr->second.Original);
}
}
}
m_OriginalValues8.clear();
if (MMU != nullptr)
{
for (ORIGINAL_VALUES16::iterator itr = m_OriginalValues16.begin(); itr != m_OriginalValues16.end(); itr++)
{
uint16_t CurrentValue;
if (MMU->LH_VAddr(itr->first, CurrentValue) && itr->second.Changed == CurrentValue)
{
MMU->SH_VAddr(itr->first, itr->second.Original);
}
}
}
m_OriginalValues16.clear();
}
void CEnhancements::LoadEnhancements(const char * Ident, SectionFiles & Files, std::unique_ptr<CEnhancmentFile> & File, CEnhancementList & EnhancementList)
{
SectionFiles::const_iterator CheatFileItr = Files.find(m_SectionIdent);
bool FoundFile = false;
if (CheatFileItr != Files.end())
{
CPath CheatFile(CheatFileItr->second);
if (CheatFile.Exists())
{
File = std::make_unique<CEnhancmentFile>(CheatFile, Ident);
File->GetEnhancementList(m_SectionIdent.c_str(), EnhancementList);
FoundFile = true;
}
}
if (!FoundFile)
{
File = nullptr;
EnhancementList.clear();
}
}
void CEnhancements::LoadCheats(CMipsMemoryVM * MMU)
{
WaitScanDone();
CGuard Guard(m_CS);
LoadEnhancements("Cheat", m_CheatFiles, m_CheatFile, m_Cheats);
LoadEnhancements("Enhancement", m_EnhancementFiles, m_EnhancementFile, m_Enhancements);
ResetCodes(MMU);
LoadActive(m_Cheats);
LoadActive(m_Enhancements);
}
void CEnhancements::LoadActive(CEnhancementList & List)
{
for (CEnhancementList::const_iterator itr = List.begin(); itr != List.end(); itr++)
{
const CEnhancement & Enhancement = itr->second;
if (!Enhancement.Valid() || !Enhancement.Active())
{
continue;
}
const CEnhancement::CodeEntries Entries = Enhancement.GetEntries();
CODES Code;
for (size_t i = 0, n = Entries.size(); i < n; i++)
{
GAMESHARK_CODE CodeEntry;
CodeEntry.Command = Entries[i].Command;
if (strncmp(Entries[i].Value.c_str(), "????", 4) == 0)
{
CodeEntry.Value = Enhancement.SelectedOption();
}
else if (strncmp(Entries[i].Value.c_str(), "??", 2) == 0)
{
CodeEntry.Value = (uint8_t)(strtoul(&(Entries[i].Value.c_str()[2]), 0, 16), 0, 16);
CodeEntry.Value |= Enhancement.SelectedOption() << 16;
}
else if (strncmp(&Entries[i].Value[2], "??", 2) == 0)
{
CodeEntry.Value = (uint16_t)(strtoul(Entries[i].Value.c_str(), 0, 16) << 16);
CodeEntry.Value |= Enhancement.SelectedOption();
}
else
{
CodeEntry.Value = (uint16_t)strtoul(Entries[i].Value.c_str(), 0, 16);
}
Code.push_back(CodeEntry);
}
m_ActiveCodes.push_back(Code);
}
}
void CEnhancements::ApplyGameSharkCodes(CMipsMemoryVM & MMU, CODES & CodeEntry, uint32_t CurrentEntry)
{
if (CurrentEntry >= CodeEntry.size())
{
g_Notify->BreakPoint(__FILE__, __LINE__);
return;
}
GAMESHARK_CODE & Code = CodeEntry[CurrentEntry];
uint16_t wMemory;
uint8_t bMemory;
switch (Code.Command & 0xFF000000)
{
case 0x50000000: // Gameshark / AR
if ((CurrentEntry + 1) >= (int)CodeEntry.size())
{
g_Notify->BreakPoint(__FILE__, __LINE__);
return;
}
{
const GAMESHARK_CODE & NextCodeEntry = CodeEntry[CurrentEntry + 1];
int numrepeats = (Code.Command & 0x0000FF00) >> 8;
int offset = Code.Command & 0x000000FF;
uint32_t Address;
int incr = Code.Value;
int i;
switch (NextCodeEntry.Command & 0xFF000000) {
case 0x10000000: // Xplorer64
case 0x80000000:
Address = 0x80000000 | (NextCodeEntry.Command & 0xFFFFFF);
wMemory = NextCodeEntry.Value;
for (i = 0; i < numrepeats; i++)
{
ModifyMemory8(MMU, Address, (uint8_t)wMemory);
Address += offset;
wMemory += (uint16_t)incr;
}
break;
case 0x11000000: // Xplorer64
case 0x81000000:
Address = 0x80000000 | (NextCodeEntry.Command & 0xFFFFFF);
wMemory = NextCodeEntry.Value;
for (i = 0; i < numrepeats; i++)
{
ModifyMemory16(MMU, Address, wMemory);
Address += offset;
wMemory += (uint16_t)incr;
}
break;
}
}
break;
case 0x80000000:
case 0x30000000:
case 0x82000000:
case 0x84000000:
ModifyMemory8(MMU, 0x80000000 | (Code.Command & 0xFFFFFF), (uint8_t)Code.Value);
break;
case 0x81000000:
ModifyMemory16(MMU, 0x80000000 | (Code.Command & 0xFFFFFF), Code.Value);
break;
case 0xA0000000:
ModifyMemory8(MMU, 0xA0000000 | (Code.Command & 0xFFFFFF), (uint8_t)Code.Value);
break;
case 0xA1000000:
ModifyMemory16(MMU, 0xA0000000 | (Code.Command & 0xFFFFFF), Code.Value);
break;
case 0xD0000000:
MMU.LB_VAddr(0x80000000 | (Code.Command & 0xFFFFFF), bMemory);
if (bMemory == Code.Value)
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry + 1);
}
break;
case 0xD1000000:
MMU.LH_VAddr(0x80000000 | (Code.Command & 0xFFFFFF), wMemory);
if (wMemory == Code.Value)
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry + 1);
}
break;
case 0xD2000000:
MMU.LB_VAddr(0x80000000 | (Code.Command & 0xFFFFFF), bMemory);
if (bMemory != Code.Value)
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry + 1);
}
break;
case 0xD3000000:
MMU.LH_VAddr(0x80000000 | (Code.Command & 0xFFFFFF), wMemory);
if (wMemory != Code.Value)
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry + 1);
}
break;
case 0x31000000:
case 0x83000000:
case 0x85000000:
ModifyMemory16(MMU, 0x80000000 | (Code.Command & 0xFFFFFF), Code.Value);
break;
case 0xE8000000:
ModifyMemory8(MMU, 0x80000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), (uint8_t)ConvertXP64Value(Code.Value));
break;
case 0xE9000000:
ModifyMemory16(MMU, 0x80000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), ConvertXP64Value(Code.Value));
break;
case 0xC8000000:
ModifyMemory8(MMU, 0xA0000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), (uint8_t)Code.Value);
break;
case 0xC9000000:
ModifyMemory16(MMU, 0xA0000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), ConvertXP64Value(Code.Value));
break;
case 0xB8000000:
case 0xBA000000:
MMU.LB_VAddr(0x80000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), bMemory);
if (bMemory == ConvertXP64Value(Code.Value))
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry + 1);
}
break;
case 0xB9000000:
case 0xBB000000:
MMU.LH_VAddr(0x80000000 | (ConvertXP64Address(Code.Command) & 0xFFFFFF), wMemory);
if (wMemory == ConvertXP64Value(Code.Value))
{
ApplyGameSharkCodes(MMU, CodeEntry, CurrentEntry + 1);
}
break;
case 0x88000000:
case 0x89000000:
case 0xA8000000:
case 0xA9000000:
//Ignore - GS Button
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
}
uint32_t CEnhancements::EntrySize(const CODES & CodeEntry, uint32_t CurrentEntry)
{
if (CurrentEntry < 0 || CurrentEntry >= (int)CodeEntry.size())
{
return 0;
}
const GAMESHARK_CODE & Code = CodeEntry[CurrentEntry];
switch (Code.Command & 0xFF000000)
{
case 0x50000000: // Gameshark / AR
if ((CurrentEntry + 1) >= (int)CodeEntry.size())
{
return 1;
}
switch (CodeEntry[CurrentEntry + 1].Command & 0xFF000000)
{
case 0x10000000: // Xplorer64
case 0x80000000:
case 0x11000000: // Xplorer64
case 0x81000000:
return 2;
}
break;
case 0xD0000000:
case 0xD1000000:
case 0xD2000000:
case 0xD3000000:
case 0xB8000000:
case 0xB9000000:
case 0xBA000000:
case 0xBB000000:
return EntrySize(CodeEntry, CurrentEntry + 1) + 1;
case 0:
return MaxGSEntries;
}
return 1;
}
void CEnhancements::ModifyMemory8(CMipsMemoryVM & MMU, uint32_t Address, uint8_t Value)
{
MEM_VALUE8 OriginalValue;
if (!MMU.LB_VAddr(Address, OriginalValue.Original))
{
return;
}
if (OriginalValue.Original == Value)
{
return;
}
MMU.SB_VAddr(Address, Value);
if (g_Recompiler)
{
g_Recompiler->ClearRecompCode_Virt(Address & ~0xFFF, 0x1000, CRecompiler::Remove_Cheats);
}
OriginalValue.Changed = Value;
std::pair<ORIGINAL_VALUES8::iterator, bool> itr = m_OriginalValues8.insert(ORIGINAL_VALUES8::value_type(Address, OriginalValue));
}
void CEnhancements::ModifyMemory16(CMipsMemoryVM & MMU, uint32_t Address, uint16_t Value)
{
MEM_VALUE16 OriginalValue;
if (!MMU.LH_VAddr(Address, OriginalValue.Original))
{
return;
}
if (OriginalValue.Original == Value)
{
return;
}
OriginalValue.Changed = Value;
std::pair<ORIGINAL_VALUES16::iterator, bool> itr = m_OriginalValues16.insert(ORIGINAL_VALUES16::value_type(Address, OriginalValue));
MMU.SH_VAddr(Address, OriginalValue.Changed);
if (g_Recompiler)
{
g_Recompiler->ClearRecompCode_Virt(Address & ~0xFFF, 0x1000, CRecompiler::Remove_Cheats);
}
}
void CEnhancements::ScanFileThread(void)
{
SectionFiles CheatFiles;
CPath File(g_Settings->LoadStringVal(SupportFile_CheatDir), "*.cht");
#ifdef _WIN32
File.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
#endif
if (File.FindFirst() && m_Scan)
{
do
{
CEnhancmentFile EnhancmentFile(File, "Cheat");
CEnhancmentFile::SectionList Sections;
EnhancmentFile.GetSections(Sections);
for (CEnhancmentFile::SectionList::const_iterator itr = Sections.begin(); itr != Sections.end(); itr++)
{
CheatFiles.insert(SectionFiles::value_type(itr->c_str(), File));
}
} while (m_Scan && File.FindNext());
}
File = CPath(g_Settings->LoadStringVal(SupportFile_UserCheatDir), "*.cht");
#ifdef _WIN32
File.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
#endif
if (m_Scan && File.FindFirst())
{
do
{
CEnhancmentFile EnhancmentFile(File, "Cheat");
CEnhancmentFile::SectionList Sections;
EnhancmentFile.GetSections(Sections);
for (CEnhancmentFile::SectionList::const_iterator itr = Sections.begin(); itr != Sections.end(); itr++)
{
CheatFiles[itr->c_str()] = (const char *)File;
}
} while (m_Scan && File.FindNext());
}
File = CPath(g_Settings->LoadStringVal(SupportFile_EnhancementDir), "*.enh");
#ifdef _WIN32
File.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
#endif
SectionFiles EnhancementFiles;
if (File.FindFirst() && m_Scan)
{
do
{
CEnhancmentFile EnhancmentFile(File, "Enhancment");
CEnhancmentFile::SectionList Sections;
EnhancmentFile.GetSections(Sections);
for (CEnhancmentFile::SectionList::const_iterator itr = Sections.begin(); itr != Sections.end(); itr++)
{
EnhancementFiles.insert(SectionFiles::value_type(itr->c_str(), File));
}
} while (m_Scan && File.FindNext());
}
File = CPath(g_Settings->LoadStringVal(SupportFile_UserEnhancementDir), "*.enh");
#ifdef _WIN32
File.NormalizePath(CPath(CPath::MODULE_DIRECTORY));
#endif
if (m_Scan && File.FindFirst())
{
do
{
CEnhancmentFile EnhancmentFile(File, "Enhancment");
CEnhancmentFile::SectionList Sections;
EnhancmentFile.GetSections(Sections);
for (CEnhancmentFile::SectionList::const_iterator itr = Sections.begin(); itr != Sections.end(); itr++)
{
EnhancementFiles[itr->c_str()] = (const char *)File;
}
} while (m_Scan && File.FindNext());
}
{
CGuard Guard(m_CS);
m_CheatFiles = CheatFiles;
m_EnhancementFiles = EnhancementFiles;
m_Scanned = true;
}
}
void CEnhancements::WaitScanDone()
{
for (uint32_t i = 0; i < 500; i++)
{
bool Scanned = false;
{
CGuard Guard(m_CS);
Scanned = m_Scanned;
}
if (Scanned)
{
break;
}
pjutil::Sleep(100);
}
}
void CEnhancements::GameChanged(void)
{
bool inBasicMode = g_Settings->LoadBool(UserInterface_BasicMode);
bool CheatsRemembered = !inBasicMode && g_Settings->LoadBool(Setting_RememberCheats);
m_SectionIdent = g_Settings->LoadStringVal(Game_IniKey);
LoadCheats(nullptr);
if (!CheatsRemembered && !m_ActiveCodes.empty())
{
bool reset = false;
for (CEnhancementList::iterator itr = m_Cheats.begin(); itr != m_Cheats.end(); itr++)
{
if (!itr->second.Active())
{
continue;
}
itr->second.SetActive(false);
reset = true;
}
if (reset)
{
m_ActiveCodes.clear();
LoadActive(m_Enhancements);
}
}
}
uint32_t CEnhancements::ConvertXP64Address(uint32_t Address)
{
uint32_t tmpAddress = (Address ^ 0x68000000) & 0xFF000000;
tmpAddress += ((Address + 0x002B0000) ^ 0x00810000) & 0x00FF0000;
tmpAddress += ((Address + 0x00002B00) ^ 0x00008200) & 0x0000FF00;
tmpAddress += ((Address + 0x0000002B) ^ 0x00000083) & 0x000000FF;
return tmpAddress;
}
uint16_t CEnhancements::ConvertXP64Value(uint16_t Value)
{
uint16_t tmpValue = ((Value + 0x2B00) ^ 0x8400) & 0xFF00;
tmpValue += ((Value + 0x002B) ^ 0x0085) & 0x00FF;
return tmpValue;
}
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