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dolphin/Source/Core/DolphinQt/CheatsManager.cpp

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// Copyright 2018 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "DolphinQt/CheatsManager.h"
#include <algorithm>
#include <cstring>
#include <QComboBox>
#include <QDialogButtonBox>
#include <QGroupBox>
#include <QHeaderView>
#include <QLabel>
#include <QLineEdit>
#include <QMenu>
#include <QPushButton>
#include <QRadioButton>
#include <QSplitter>
#include <QTabWidget>
#include <QTableWidget>
#include <QVBoxLayout>
#include "Core/ActionReplay.h"
#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "Core/Debugger/PPCDebugInterface.h"
#include "Core/HW/Memmap.h"
#include "Core/PowerPC/MMU.h"
#include "Core/PowerPC/PowerPC.h"
#include "UICommon/GameFile.h"
#include "DolphinQt/Config/ARCodeWidget.h"
#include "DolphinQt/Config/GeckoCodeWidget.h"
#include "DolphinQt/GameList/GameListModel.h"
#include "DolphinQt/Settings.h"
constexpr u32 MAX_RESULTS = 50;
constexpr int INDEX_ROLE = Qt::UserRole;
constexpr int COLUMN_ROLE = Qt::UserRole + 1;
constexpr int AR_SET_BYTE_CMD = 0x00;
constexpr int AR_SET_SHORT_CMD = 0x02;
constexpr int AR_SET_INT_CMD = 0x04;
enum class CompareType : int
{
Equal = 0,
NotEqual = 1,
Less = 2,
LessEqual = 3,
More = 4,
MoreEqual = 5
};
enum class DataType : int
{
Byte = 0,
Short = 1,
Int = 2,
Float = 3,
Double = 4,
String = 5
};
struct Result
{
u32 address;
DataType type;
QString name;
bool locked = false;
u32 locked_value;
};
static u32 GetResultValue(Result result)
{
switch (result.type)
{
case DataType::Byte:
return PowerPC::HostRead_U8(result.address);
case DataType::Short:
return PowerPC::HostRead_U16(result.address);
case DataType::Int:
return PowerPC::HostRead_U32(result.address);
default:
return 0;
}
}
static void UpdatePatch(Result result)
{
PowerPC::debug_interface.UnsetPatch(result.address);
if (result.locked)
{
switch (result.type)
{
case DataType::Byte:
PowerPC::debug_interface.SetPatch(result.address,
std::vector<u8>{static_cast<u8>(result.locked_value)});
break;
default:
PowerPC::debug_interface.SetPatch(result.address, result.locked_value);
break;
}
}
}
static ActionReplay::AREntry ResultToAREntry(Result result)
{
u8 cmd;
switch (result.type)
{
case DataType::Byte:
cmd = AR_SET_BYTE_CMD;
break;
case DataType::Short:
cmd = AR_SET_SHORT_CMD;
break;
default:
case DataType::Int:
cmd = AR_SET_INT_CMD;
break;
}
u32 address = result.address & 0xffffff;
return ActionReplay::AREntry(cmd << 24 | address, result.locked_value);
}
template <typename T>
static bool Compare(T mem_value, T value, CompareType op)
{
switch (op)
{
case CompareType::Equal:
return mem_value == value;
case CompareType::NotEqual:
return mem_value != value;
case CompareType::Less:
return mem_value < value;
case CompareType::LessEqual:
return mem_value <= value;
case CompareType::More:
return mem_value > value;
case CompareType::MoreEqual:
return mem_value >= value;
default:
return false;
}
}
CheatsManager::CheatsManager(QWidget* parent) : QDialog(parent)
{
setWindowTitle(tr("Cheats Manager"));
setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
connect(&Settings::Instance(), &Settings::EmulationStateChanged, this,
&CheatsManager::OnStateChanged);
OnStateChanged(Core::GetState());
CreateWidgets();
ConnectWidgets();
Reset();
Update();
}
CheatsManager::~CheatsManager() = default;
void CheatsManager::OnStateChanged(Core::State state)
{
if (state != Core::State::Running && state != Core::State::Paused)
return;
auto* model = Settings::Instance().GetGameListModel();
for (int i = 0; i < model->rowCount(QModelIndex()); i++)
{
auto file = model->GetGameFile(i);
if (file->GetGameID() == SConfig::GetInstance().GetGameID())
{
m_game_file = file;
if (m_tab_widget->count() == 3)
{
m_tab_widget->removeTab(0);
m_tab_widget->removeTab(0);
}
if (m_tab_widget->count() == 1)
{
if (m_ar_code)
m_ar_code->deleteLater();
m_ar_code = new ARCodeWidget(*m_game_file, false);
m_tab_widget->insertTab(0, m_ar_code, tr("AR Code"));
m_tab_widget->insertTab(1, new GeckoCodeWidget(*m_game_file, false), tr("Gecko Codes"));
}
}
}
}
void CheatsManager::CreateWidgets()
{
m_tab_widget = new QTabWidget;
m_button_box = new QDialogButtonBox(QDialogButtonBox::Close);
m_cheat_search = CreateCheatSearch();
m_tab_widget->addTab(m_cheat_search, tr("Cheat Search"));
auto* layout = new QVBoxLayout;
layout->addWidget(m_tab_widget);
layout->addWidget(m_button_box);
setLayout(layout);
}
void CheatsManager::ConnectWidgets()
{
connect(m_button_box, &QDialogButtonBox::rejected, this, &QDialog::reject);
connect(m_match_new, &QPushButton::clicked, this, &CheatsManager::NewSearch);
connect(m_match_next, &QPushButton::clicked, this, &CheatsManager::NextSearch);
connect(m_match_refresh, &QPushButton::clicked, this, &CheatsManager::Update);
connect(m_match_reset, &QPushButton::clicked, this, &CheatsManager::Reset);
m_match_table->setContextMenuPolicy(Qt::CustomContextMenu);
m_watch_table->setContextMenuPolicy(Qt::CustomContextMenu);
connect(m_match_table, &QTableWidget::customContextMenuRequested, this,
&CheatsManager::OnMatchContextMenu);
connect(m_watch_table, &QTableWidget::customContextMenuRequested, this,
&CheatsManager::OnWatchContextMenu);
connect(m_watch_table, &QTableWidget::itemChanged, this, &CheatsManager::OnWatchItemChanged);
}
void CheatsManager::OnWatchContextMenu()
{
if (m_watch_table->selectedItems().isEmpty())
return;
QMenu* menu = new QMenu(this);
menu->addAction(tr("Remove from Watch"), this, [this] {
auto* item = m_watch_table->selectedItems()[0];
int index = item->data(INDEX_ROLE).toInt();
m_watch.erase(m_watch.begin() + index);
Update();
});
menu->addSeparator();
menu->addAction(tr("Generate Action Replay Code"), this, &CheatsManager::GenerateARCode);
menu->exec(QCursor::pos());
}
void CheatsManager::OnMatchContextMenu()
{
if (m_match_table->selectedItems().isEmpty())
return;
QMenu* menu = new QMenu(this);
menu->addAction(tr("Add to Watch"), this, [this] {
auto* item = m_match_table->selectedItems()[0];
int index = item->data(INDEX_ROLE).toInt();
m_results[index].locked_value = GetResultValue(m_results[index]);
m_watch.push_back(m_results[index]);
Update();
});
menu->exec(QCursor::pos());
}
void CheatsManager::GenerateARCode()
{
if (!m_ar_code)
return;
auto* item = m_watch_table->selectedItems()[0];
int index = item->data(INDEX_ROLE).toInt();
ActionReplay::ARCode ar_code;
ar_code.active = true;
ar_code.user_defined = true;
ar_code.name = tr("Generated by search (Address %1)")
.arg(m_watch[index].address, 8, 16, QLatin1Char('0'))
.toStdString();
ar_code.ops.push_back(ResultToAREntry(m_watch[index]));
m_ar_code->AddCode(ar_code);
}
void CheatsManager::OnWatchItemChanged(QTableWidgetItem* item)
{
if (m_updating)
return;
int index = item->data(INDEX_ROLE).toInt();
int column = item->data(COLUMN_ROLE).toInt();
switch (column)
{
case 0:
m_watch[index].name = item->text();
break;
case 2:
m_watch[index].locked = item->checkState() == Qt::Checked;
if (m_watch[index].locked)
m_watch[index].locked_value = GetResultValue(m_results[index]);
UpdatePatch(m_watch[index]);
break;
case 3:
{
const auto text = item->text();
u32 value = 0;
switch (m_watch[index].type)
{
case DataType::Byte:
value = text.toUShort(nullptr, 16) & 0xFF;
break;
case DataType::Short:
value = text.toUShort(nullptr, 16);
break;
case DataType::Int:
value = text.toUInt(nullptr, 16);
break;
case DataType::Float:
{
float f = text.toFloat();
std::memcpy(&value, &f, sizeof(float));
break;
}
default:
break;
}
m_watch[index].locked_value = value;
UpdatePatch(m_watch[index]);
break;
}
}
Update();
}
QWidget* CheatsManager::CreateCheatSearch()
{
m_match_table = new QTableWidget;
m_watch_table = new QTableWidget;
m_match_table->setTabKeyNavigation(false);
m_watch_table->setTabKeyNavigation(false);
m_match_table->verticalHeader()->hide();
m_watch_table->verticalHeader()->hide();
m_match_table->setSelectionBehavior(QAbstractItemView::SelectRows);
m_watch_table->setSelectionBehavior(QAbstractItemView::SelectRows);
// Options
m_result_label = new QLabel;
m_match_length = new QComboBox;
m_match_operation = new QComboBox;
m_match_value = new QLineEdit;
m_match_new = new QPushButton(tr("New Search"));
m_match_next = new QPushButton(tr("Next Search"));
m_match_refresh = new QPushButton(tr("Refresh"));
m_match_reset = new QPushButton(tr("Reset"));
auto* options = new QWidget;
auto* layout = new QVBoxLayout;
options->setLayout(layout);
for (const auto& option : {tr("8-bit Integer"), tr("16-bit Integer"), tr("32-bit Integer"),
tr("Float"), tr("Double"), tr("String")})
{
m_match_length->addItem(option);
}
for (const auto& option : {tr("Equals to"), tr("Not equals to"), tr("Less than"),
tr("Less or equal to"), tr("More than"), tr("More or equal to")})
{
m_match_operation->addItem(option);
}
auto* group_box = new QGroupBox(tr("Type"));
auto* group_layout = new QHBoxLayout;
group_box->setLayout(group_layout);
// i18n: The base 10 numeral system. Not related to non-integer numbers
m_match_decimal = new QRadioButton(tr("Decimal"));
m_match_hexadecimal = new QRadioButton(tr("Hexadecimal"));
m_match_octal = new QRadioButton(tr("Octal"));
group_layout->addWidget(m_match_decimal);
group_layout->addWidget(m_match_hexadecimal);
group_layout->addWidget(m_match_octal);
layout->addWidget(m_result_label);
layout->addWidget(m_match_length);
layout->addWidget(m_match_operation);
layout->addWidget(m_match_value);
layout->addWidget(group_box);
layout->addWidget(m_match_new);
layout->addWidget(m_match_next);
layout->addWidget(m_match_refresh);
layout->addWidget(m_match_reset);
// Splitters
m_option_splitter = new QSplitter(Qt::Horizontal);
m_table_splitter = new QSplitter(Qt::Vertical);
m_table_splitter->addWidget(m_match_table);
m_table_splitter->addWidget(m_watch_table);
m_option_splitter->addWidget(m_table_splitter);
m_option_splitter->addWidget(options);
return m_option_splitter;
}
size_t CheatsManager::GetTypeSize() const
{
switch (static_cast<DataType>(m_match_length->currentIndex()))
{
case DataType::Byte:
return sizeof(u8);
case DataType::Short:
return sizeof(u16);
case DataType::Int:
return sizeof(u32);
case DataType::Float:
return sizeof(float);
case DataType::Double:
return sizeof(double);
default:
return m_match_value->text().toStdString().size();
}
}
std::function<bool(u32)> CheatsManager::CreateMatchFunction()
{
const QString text = m_match_value->text();
if (text.isEmpty())
{
m_result_label->setText(tr("No search value entered."));
return nullptr;
}
const CompareType op = static_cast<CompareType>(m_match_operation->currentIndex());
const int base =
(m_match_decimal->isChecked() ? 10 : (m_match_hexadecimal->isChecked() ? 16 : 8));
bool conversion_succeeded = false;
std::function<bool(u32)> matches_func;
switch (static_cast<DataType>(m_match_length->currentIndex()))
{
case DataType::Byte:
{
u8 comparison_value = text.toUShort(&conversion_succeeded, base) & 0xFF;
matches_func = [=](u32 addr) {
return Compare<u8>(PowerPC::HostRead_U8(addr), comparison_value, op);
};
break;
}
case DataType::Short:
{
u16 comparison_value = text.toUShort(&conversion_succeeded, base);
matches_func = [=](u32 addr) {
return Compare(PowerPC::HostRead_U16(addr), comparison_value, op);
};
break;
}
case DataType::Int:
{
u32 comparison_value = text.toUInt(&conversion_succeeded, base);
matches_func = [=](u32 addr) {
return Compare(PowerPC::HostRead_U32(addr), comparison_value, op);
};
break;
}
case DataType::Float:
{
float comparison_value = text.toFloat(&conversion_succeeded);
matches_func = [=](u32 addr) {
return Compare(PowerPC::HostRead_F32(addr), comparison_value, op);
};
break;
}
case DataType::Double:
{
double comparison_value = text.toDouble(&conversion_succeeded);
matches_func = [=](u32 addr) {
return Compare(PowerPC::HostRead_F64(addr), comparison_value, op);
};
break;
}
case DataType::String:
{
if (op != CompareType::Equal && op != CompareType::NotEqual)
{
m_result_label->setText(tr("String values can only be compared using equality."));
return nullptr;
}
conversion_succeeded = true;
const QString lambda_text = m_match_value->text();
const QByteArray utf8_bytes = lambda_text.toUtf8();
matches_func = [op, utf8_bytes](u32 addr) {
bool is_equal = std::equal(utf8_bytes.cbegin(), utf8_bytes.cend(),
reinterpret_cast<char*>(Memory::m_pRAM + addr - 0x80000000));
switch (op)
{
case CompareType::Equal:
return is_equal;
case CompareType::NotEqual:
return !is_equal;
default:
// This should never occur since we've already checked the type of op
return false;
}
};
break;
}
}
if (conversion_succeeded)
return matches_func;
m_result_label->setText(tr("Cannot interpret the given value.\nHave you chosen the right type?"));
return nullptr;
}
void CheatsManager::NewSearch()
{
m_results.clear();
const u32 base_address = 0x80000000;
if (!Memory::m_pRAM)
{
m_result_label->setText(tr("Memory Not Ready"));
return;
}
std::function<bool(u32)> matches_func = CreateMatchFunction();
if (matches_func == nullptr)
return;
Core::RunAsCPUThread([&] {
for (u32 i = 0; i < Memory::REALRAM_SIZE - GetTypeSize(); i++)
{
if (PowerPC::HostIsRAMAddress(base_address + i) && matches_func(base_address + i))
m_results.push_back(
{base_address + i, static_cast<DataType>(m_match_length->currentIndex())});
}
});
m_match_next->setEnabled(true);
Update();
}
void CheatsManager::NextSearch()
{
if (!Memory::m_pRAM)
{
m_result_label->setText(tr("Memory Not Ready"));
return;
}
std::function<bool(u32)> matches_func = CreateMatchFunction();
if (matches_func == nullptr)
return;
Core::RunAsCPUThread([this, matches_func] {
m_results.erase(std::remove_if(m_results.begin(), m_results.end(),
[matches_func](Result r) {
return !PowerPC::HostIsRAMAddress(r.address) ||
!matches_func(r.address);
}),
m_results.end());
});
Update();
}
static QString GetResultString(const Result& result)
{
if (!PowerPC::HostIsRAMAddress(result.address))
{
return QStringLiteral("---");
}
switch (result.type)
{
case DataType::Byte:
return QStringLiteral("%1").arg(PowerPC::HostRead_U8(result.address), 2, 16, QLatin1Char('0'));
case DataType::Short:
return QStringLiteral("%1").arg(PowerPC::HostRead_U16(result.address), 4, 16, QLatin1Char('0'));
case DataType::Int:
return QStringLiteral("%1").arg(PowerPC::HostRead_U32(result.address), 8, 16, QLatin1Char('0'));
case DataType::Float:
return QString::number(PowerPC::HostRead_F32(result.address));
case DataType::Double:
return QString::number(PowerPC::HostRead_F64(result.address));
case DataType::String:
return QObject::tr("String Match");
default:
return {};
}
}
void CheatsManager::Update()
{
m_match_table->clear();
m_watch_table->clear();
m_match_table->setColumnCount(2);
m_watch_table->setColumnCount(4);
m_match_table->setHorizontalHeaderLabels({tr("Address"), tr("Value")});
m_watch_table->setHorizontalHeaderLabels({tr("Name"), tr("Address"), tr("Lock"), tr("Value")});
if (m_results.size() > MAX_RESULTS)
{
m_result_label->setText(tr("Too many matches to display (%1)").arg(m_results.size()));
return;
}
m_result_label->setText(tr("%1 Match(es)").arg(m_results.size()));
m_match_table->setRowCount(static_cast<int>(m_results.size()));
if (m_results.empty())
return;
m_updating = true;
Core::RunAsCPUThread([this] {
for (size_t i = 0; i < m_results.size(); i++)
{
auto* address_item = new QTableWidgetItem(
QStringLiteral("%1").arg(m_results[i].address, 8, 16, QLatin1Char('0')));
auto* value_item = new QTableWidgetItem;
address_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
value_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
value_item->setText(GetResultString(m_results[i]));
address_item->setData(INDEX_ROLE, static_cast<int>(i));
value_item->setData(INDEX_ROLE, static_cast<int>(i));
m_match_table->setItem(static_cast<int>(i), 0, address_item);
m_match_table->setItem(static_cast<int>(i), 1, value_item);
}
m_watch_table->setRowCount(static_cast<int>(m_watch.size()));
for (size_t i = 0; i < m_watch.size(); i++)
{
auto* name_item = new QTableWidgetItem(m_watch[i].name);
auto* address_item = new QTableWidgetItem(
QStringLiteral("%1").arg(m_watch[i].address, 8, 16, QLatin1Char('0')));
auto* lock_item = new QTableWidgetItem;
auto* value_item = new QTableWidgetItem;
value_item->setText(GetResultString(m_results[i]));
name_item->setData(INDEX_ROLE, static_cast<int>(i));
name_item->setData(COLUMN_ROLE, 0);
address_item->setData(INDEX_ROLE, static_cast<int>(i));
address_item->setData(COLUMN_ROLE, 1);
lock_item->setData(INDEX_ROLE, static_cast<int>(i));
lock_item->setData(COLUMN_ROLE, 2);
value_item->setData(INDEX_ROLE, static_cast<int>(i));
value_item->setData(COLUMN_ROLE, 3);
name_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable);
address_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
lock_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsUserCheckable | Qt::ItemIsSelectable);
value_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable);
lock_item->setCheckState(m_watch[i].locked ? Qt::Checked : Qt::Unchecked);
m_watch_table->setItem(static_cast<int>(i), 0, name_item);
m_watch_table->setItem(static_cast<int>(i), 1, address_item);
m_watch_table->setItem(static_cast<int>(i), 2, lock_item);
m_watch_table->setItem(static_cast<int>(i), 3, value_item);
}
});
m_updating = false;
}
void CheatsManager::Reset()
{
m_results.clear();
m_watch.clear();
m_match_next->setEnabled(false);
m_match_table->clear();
m_watch_table->clear();
m_match_decimal->setChecked(true);
m_result_label->clear();
Update();
}
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