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dolphin/Source/Core/DolphinQt/Debugger/MemoryViewWidget.cpp

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// Copyright 2018 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "DolphinQt/Debugger/MemoryViewWidget.h"
#include <QApplication>
#include <QClipboard>
#include <QHBoxLayout>
#include <QHeaderView>
#include <QMenu>
#include <QMouseEvent>
#include <QScrollBar>
#include <QSignalBlocker>
#include <QTableWidget>
#include <QtGlobal>
#include <cmath>
#include <fmt/printf.h>
#include "Common/Align.h"
#include "Common/FloatUtils.h"
#include "Common/StringUtil.h"
#include "Common/Swap.h"
#include "Core/Core.h"
#include "Core/HW/AddressSpace.h"
#include "Core/PowerPC/BreakPoints.h"
#include "Core/PowerPC/PowerPC.h"
#include "Core/System.h"
#include "DolphinQt/Host.h"
#include "DolphinQt/Resources.h"
#include "DolphinQt/Settings.h"
// "Most mouse types work in steps of 15 degrees, in which case the delta value is a multiple of
// 120; i.e., 120 units * 1/8 = 15 degrees." (http://doc.qt.io/qt-5/qwheelevent.html#angleDelta)
constexpr double SCROLL_FRACTION_DEGREES = 15.;
// Number of columns that don't contain the value of a memory address.
constexpr int MISC_COLUMNS = 2;
constexpr auto USER_ROLE_IS_ROW_BREAKPOINT_CELL = Qt::UserRole;
constexpr auto USER_ROLE_CELL_ADDRESS = Qt::UserRole + 1;
constexpr auto USER_ROLE_VALUE_TYPE = Qt::UserRole + 2;
// Numbers for the scrollbar. These affect how much big the draggable part of the scrollbar is, how
// smooth it scrolls, and how much memory it traverses while dragging.
constexpr int SCROLLBAR_MINIMUM = 0;
constexpr int SCROLLBAR_PAGESTEP = 250;
constexpr int SCROLLBAR_MAXIMUM = 20000;
constexpr int SCROLLBAR_CENTER = SCROLLBAR_MAXIMUM / 2;
const QString INVALID_MEMORY = QStringLiteral("-");
class MemoryViewTable final : public QTableWidget
{
public:
explicit MemoryViewTable(MemoryViewWidget* parent) : QTableWidget(parent), m_view(parent)
{
horizontalHeader()->hide();
verticalHeader()->hide();
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setShowGrid(false);
setContextMenuPolicy(Qt::CustomContextMenu);
// Selection will be set programmatically. User will still get an outline on clicked items.
setSelectionMode(NoSelection);
setTextElideMode(Qt::TextElideMode::ElideNone);
// Prevent colors from changing based on focus.
QPalette palette(m_view->palette());
palette.setBrush(QPalette::Inactive, QPalette::Highlight, palette.brush(QPalette::Highlight));
palette.setBrush(QPalette::Inactive, QPalette::HighlightedText,
palette.brush(QPalette::HighlightedText));
setPalette(palette);
setRowCount(30);
setColumnCount(8);
connect(this, &MemoryViewTable::customContextMenuRequested, m_view,
&MemoryViewWidget::OnContextMenu);
connect(this, &MemoryViewTable::itemChanged, this, &MemoryViewTable::OnItemChanged);
}
void resizeEvent(QResizeEvent* event) override
{
QTableWidget::resizeEvent(event);
m_view->CreateTable();
}
void keyPressEvent(QKeyEvent* event) override
{
switch (event->key())
{
case Qt::Key_Up:
m_view->m_address -= m_view->m_bytes_per_row;
m_view->Update();
return;
case Qt::Key_Down:
m_view->m_address += m_view->m_bytes_per_row;
m_view->Update();
return;
case Qt::Key_PageUp:
m_view->m_address -= this->rowCount() * m_view->m_bytes_per_row;
m_view->Update();
return;
case Qt::Key_PageDown:
m_view->m_address += this->rowCount() * m_view->m_bytes_per_row;
m_view->Update();
return;
default:
QWidget::keyPressEvent(event);
break;
}
}
void wheelEvent(QWheelEvent* event) override
{
auto delta =
-static_cast<int>(std::round((event->angleDelta().y() / (SCROLL_FRACTION_DEGREES * 8))));
if (delta == 0)
return;
m_view->m_address += delta * m_view->m_bytes_per_row;
m_view->Update();
}
void mousePressEvent(QMouseEvent* event) override
{
if (event->button() != Qt::LeftButton)
return;
auto* item = this->itemAt(event->pos());
if (!item)
return;
if (item->data(USER_ROLE_IS_ROW_BREAKPOINT_CELL).toBool())
{
const u32 address = item->data(USER_ROLE_CELL_ADDRESS).toUInt();
m_view->ToggleBreakpoint(address, true);
m_view->Update();
}
else
{
QTableWidget::mousePressEvent(event);
}
}
void OnItemChanged(QTableWidgetItem* item)
{
QString text = item->text();
MemoryViewWidget::Type type =
static_cast<MemoryViewWidget::Type>(item->data(USER_ROLE_VALUE_TYPE).toInt());
std::vector<u8> bytes = m_view->ConvertTextToBytes(type, text);
u32 address = item->data(USER_ROLE_CELL_ADDRESS).toUInt();
u32 end_address = address + static_cast<u32>(bytes.size()) - 1;
AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_view->GetAddressSpace());
Core::CPUThreadGuard guard(Core::System::GetInstance());
if (!bytes.empty() && accessors->IsValidAddress(guard, address) &&
accessors->IsValidAddress(guard, end_address))
{
for (const u8 c : bytes)
accessors->WriteU8(guard, address++, c);
}
m_view->Update();
}
private:
MemoryViewWidget* m_view;
};
MemoryViewWidget::MemoryViewWidget(QWidget* parent)
: QWidget(parent), m_system(Core::System::GetInstance())
{
auto* layout = new QHBoxLayout();
layout->setContentsMargins(0, 0, 0, 0);
m_table = new MemoryViewTable(this);
layout->addWidget(m_table);
// Since the Memory View is infinitely long -- it wraps around -- we can't use a normal scroll
// bar, so this initializes a custom one that is always centered but otherwise still behaves more
// or less like a regular scrollbar.
m_scrollbar = new QScrollBar(this);
m_scrollbar->setRange(SCROLLBAR_MINIMUM, SCROLLBAR_MAXIMUM);
m_scrollbar->setPageStep(SCROLLBAR_PAGESTEP);
m_scrollbar->setValue(SCROLLBAR_CENTER);
connect(m_scrollbar, &QScrollBar::actionTriggered, this,
&MemoryViewWidget::ScrollbarActionTriggered);
connect(m_scrollbar, &QScrollBar::sliderReleased, this,
&MemoryViewWidget::ScrollbarSliderReleased);
layout->addWidget(m_scrollbar);
this->setLayout(layout);
connect(&Settings::Instance(), &Settings::DebugFontChanged, this, &MemoryViewWidget::UpdateFont);
connect(&Settings::Instance(), &Settings::EmulationStateChanged, this,
qOverload<>(&MemoryViewWidget::UpdateColumns));
connect(Host::GetInstance(), &Host::UpdateDisasmDialog, this,
qOverload<>(&MemoryViewWidget::UpdateColumns));
connect(&Settings::Instance(), &Settings::ThemeChanged, this, &MemoryViewWidget::Update);
// Also calls create table.
UpdateFont();
}
void MemoryViewWidget::UpdateFont()
{
const QFontMetrics fm(Settings::Instance().GetDebugFont());
m_font_vspace = fm.lineSpacing();
// BoundingRect is too unpredictable, a custom one would be needed for each view type. Different
// fonts have wildly different spacing between two characters and horizontalAdvance includes
// spacing.
#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
m_font_width = fm.horizontalAdvance(QLatin1Char('0'));
#else
m_font_width = fm.width(QLatin1Char('0'));
#endif
m_table->setFont(Settings::Instance().GetDebugFont());
CreateTable();
}
constexpr int GetTypeSize(MemoryViewWidget::Type type)
{
switch (type)
{
case MemoryViewWidget::Type::ASCII:
case MemoryViewWidget::Type::Hex8:
case MemoryViewWidget::Type::Unsigned8:
case MemoryViewWidget::Type::Signed8:
return 1;
case MemoryViewWidget::Type::Unsigned16:
case MemoryViewWidget::Type::Signed16:
case MemoryViewWidget::Type::Hex16:
return 2;
case MemoryViewWidget::Type::Hex32:
case MemoryViewWidget::Type::Unsigned32:
case MemoryViewWidget::Type::Signed32:
case MemoryViewWidget::Type::Float32:
return 4;
case MemoryViewWidget::Type::Double:
case MemoryViewWidget::Type::Hex64:
return 8;
default:
return 1;
}
}
constexpr int GetCharacterCount(MemoryViewWidget::Type type)
{
// Max number of characters +1 for spacing between columns.
switch (type)
{
case MemoryViewWidget::Type::ASCII: // A
return 2;
case MemoryViewWidget::Type::Hex8: // Byte = FF
return 3;
case MemoryViewWidget::Type::Unsigned8: // UCHAR_MAX = 255
return 4;
case MemoryViewWidget::Type::Hex16: // 2 Bytes = FFFF
case MemoryViewWidget::Type::Signed8: // CHAR_MIN = -128
return 5;
case MemoryViewWidget::Type::Unsigned16: // USHORT_MAX = 65535
return 6;
case MemoryViewWidget::Type::Signed16: // SHORT_MIN = -32768
return 7;
case MemoryViewWidget::Type::Hex32: // 4 Bytes = FFFFFFFF
return 9;
case MemoryViewWidget::Type::Float32: // Rounded and Negative FLT_MAX = -3.403e+38
case MemoryViewWidget::Type::Unsigned32: // UINT_MAX = 4294967295
return 11;
case MemoryViewWidget::Type::Double: // Rounded and Negative DBL_MAX = -1.798e+308
case MemoryViewWidget::Type::Signed32: // INT_MIN = -2147483648
return 12;
case MemoryViewWidget::Type::Hex64: // For dual_view + Double. 8 Bytes = FFFFFFFFFFFFFFFF
return 17;
default:
return 10;
}
}
void MemoryViewWidget::CreateTable()
{
m_table->clearContents();
// This sets all row heights and determines horizontal ascii spacing.
// Could be placed in UpdateFont() but doesn't apply correctly unless called more.
m_table->verticalHeader()->setDefaultSectionSize(m_font_vspace - 1);
m_table->verticalHeader()->setMinimumSectionSize(m_font_vspace - 1);
m_table->horizontalHeader()->setMinimumSectionSize(m_font_width * 2);
const QSignalBlocker blocker(m_table);
// Set column and row parameters.
// Span is the number of unique memory values covered in one row.
const int data_span = m_bytes_per_row / GetTypeSize(m_type);
m_data_columns = m_dual_view ? data_span * 2 : data_span;
const int total_columns = MISC_COLUMNS + m_data_columns;
const int rows =
std::round((m_table->height() / static_cast<float>(m_table->rowHeight(0))) - 0.25);
m_table->setColumnCount(total_columns);
m_table->setRowCount(rows);
m_table->setColumnWidth(0, m_table->rowHeight(0));
// Get optional dual-view type
std::optional<Type> left_type = std::nullopt;
if (m_dual_view)
{
if (GetTypeSize(m_type) == 1)
left_type = Type::Hex8;
else if (GetTypeSize(m_type) == 2)
left_type = Type::Hex16;
else if (GetTypeSize(m_type) == 8)
left_type = Type::Hex64;
else
left_type = Type::Hex32;
}
// Create cells and add data that won't be changing.
// Breakpoint buttons
auto bp_item = QTableWidgetItem();
bp_item.setFlags(Qt::ItemIsEnabled);
bp_item.setData(USER_ROLE_IS_ROW_BREAKPOINT_CELL, true);
bp_item.setData(USER_ROLE_VALUE_TYPE, static_cast<int>(Type::Null));
// Row Addresses
auto row_item = QTableWidgetItem(INVALID_MEMORY);
row_item.setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
row_item.setData(USER_ROLE_IS_ROW_BREAKPOINT_CELL, false);
row_item.setData(USER_ROLE_VALUE_TYPE, static_cast<int>(Type::Null));
// Data item
auto item = QTableWidgetItem(INVALID_MEMORY);
item.setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable);
item.setData(USER_ROLE_IS_ROW_BREAKPOINT_CELL, false);
for (int i = 0; i < rows; i++)
{
m_table->setItem(i, 0, bp_item.clone());
m_table->setItem(i, 1, row_item.clone());
for (int c = 0; c < m_data_columns; c++)
{
if (left_type && c < data_span)
{
item.setData(USER_ROLE_VALUE_TYPE, static_cast<int>(left_type.value()));
}
else
{
item.setData(USER_ROLE_VALUE_TYPE, static_cast<int>(m_type));
// Left type will never be these.
auto text_alignment = Qt::AlignLeft;
if (m_type == Type::Signed32 || m_type == Type::Unsigned32 || m_type == Type::Signed16 ||
m_type == Type::Unsigned16 || m_type == Type::Signed8 || m_type == Type::Unsigned8)
{
text_alignment = Qt::AlignRight;
}
item.setTextAlignment(text_alignment | Qt::AlignVCenter);
}
m_table->setItem(i, c + MISC_COLUMNS, item.clone());
}
}
// Update column width
int start_fill = MISC_COLUMNS;
if (left_type)
{
const int width_left = m_font_width * GetCharacterCount(left_type.value());
for (int i = 0; i < data_span - 1; i++)
m_table->setColumnWidth(i + start_fill, width_left);
// Extra spacing between dual views.
m_table->setColumnWidth(start_fill + data_span - 1, width_left + m_font_width * 2);
start_fill += data_span;
}
// If dual-view, updates the right-side columns only.
const int width = m_font_width * GetCharacterCount(m_type);
for (int i = start_fill; i < total_columns; i++)
m_table->setColumnWidth(i, width);
Update();
}
void MemoryViewWidget::Update()
{
// Check if table is created
if (m_table->item(1, 1) == nullptr)
return;
const QSignalBlocker blocker(m_table);
m_table->clearSelection();
// Update addresses
const u32 address = Common::AlignDown(m_address, m_alignment);
u32 row_address = address - (m_table->rowCount() / 2) * m_bytes_per_row;
const int data_span = m_bytes_per_row / GetTypeSize(m_type);
for (int i = 0; i < m_table->rowCount(); i++, row_address += m_bytes_per_row)
{
auto* bp_item = m_table->item(i, 0);
bp_item->setData(USER_ROLE_CELL_ADDRESS, row_address);
auto* row_item = m_table->item(i, 1);
row_item->setText(QStringLiteral("%1").arg(row_address, 8, 16, QLatin1Char('0')));
row_item->setData(USER_ROLE_CELL_ADDRESS, row_address);
for (int c = 0; c < m_data_columns; c++)
{
auto* item = m_table->item(i, c + MISC_COLUMNS);
u32 item_address;
if (m_dual_view && c >= data_span)
item_address = row_address + (c - data_span) * GetTypeSize(m_type);
else
item_address = row_address + c * GetTypeSize(m_type);
item->setData(USER_ROLE_CELL_ADDRESS, item_address);
}
}
UpdateColumns();
UpdateBreakpointTags();
m_table->viewport()->update();
m_table->update();
update();
}
void MemoryViewWidget::UpdateColumns()
{
if (!isVisible())
return;
// Check if table is created
if (m_table->item(1, 1) == nullptr)
return;
if (Core::GetState() == Core::State::Paused)
{
Core::CPUThreadGuard guard(Core::System::GetInstance());
UpdateColumns(&guard);
}
else
{
// If the core is running, blank out the view of memory instead of reading anything.
UpdateColumns(nullptr);
}
}
void MemoryViewWidget::UpdateColumns(const Core::CPUThreadGuard* guard)
{
// Check if table is created
if (m_table->item(1, 1) == nullptr)
return;
const QSignalBlocker blocker(m_table);
for (int i = 0; i < m_table->rowCount(); i++)
{
for (int c = 0; c < m_data_columns; c++)
{
auto* cell_item = m_table->item(i, c + MISC_COLUMNS);
const u32 cell_address = cell_item->data(USER_ROLE_CELL_ADDRESS).toUInt();
const Type type = static_cast<Type>(cell_item->data(USER_ROLE_VALUE_TYPE).toInt());
cell_item->setText(guard ? ValueToString(*guard, cell_address, type) : INVALID_MEMORY);
// Set search address to selected / colored
if (cell_address == m_address_highlight)
cell_item->setSelected(true);
}
}
}
// May only be called if we have taken on the role of the CPU thread
QString MemoryViewWidget::ValueToString(const Core::CPUThreadGuard& guard, u32 address, Type type)
{
const AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_address_space);
if (!accessors->IsValidAddress(guard, address))
return INVALID_MEMORY;
switch (type)
{
case Type::Hex8:
{
const u8 value = accessors->ReadU8(guard, address);
return QStringLiteral("%1").arg(value, 2, 16, QLatin1Char('0'));
}
case Type::ASCII:
{
const char value = accessors->ReadU8(guard, address);
return IsPrintableCharacter(value) ? QString{QChar::fromLatin1(value)} :
QString{QChar::fromLatin1('.')};
}
case Type::Hex16:
{
const u16 value = accessors->ReadU16(guard, address);
return QStringLiteral("%1").arg(value, 4, 16, QLatin1Char('0'));
}
case Type::Hex32:
{
const u32 value = accessors->ReadU32(guard, address);
return QStringLiteral("%1").arg(value, 8, 16, QLatin1Char('0'));
}
case Type::Hex64:
{
const u64 value = accessors->ReadU64(guard, address);
return QStringLiteral("%1").arg(value, 16, 16, QLatin1Char('0'));
}
case Type::Unsigned8:
return QString::number(accessors->ReadU8(guard, address));
case Type::Unsigned16:
return QString::number(accessors->ReadU16(guard, address));
case Type::Unsigned32:
return QString::number(accessors->ReadU32(guard, address));
case Type::Signed8:
return QString::number(Common::BitCast<s8>(accessors->ReadU8(guard, address)));
case Type::Signed16:
return QString::number(Common::BitCast<s16>(accessors->ReadU16(guard, address)));
case Type::Signed32:
return QString::number(Common::BitCast<s32>(accessors->ReadU32(guard, address)));
case Type::Float32:
{
QString string = QString::number(accessors->ReadF32(guard, address), 'g', 4);
// Align to first digit.
if (!string.startsWith(QLatin1Char('-')))
string.prepend(QLatin1Char(' '));
return string;
}
case Type::Double:
{
QString string =
QString::number(Common::BitCast<double>(accessors->ReadU64(guard, address)), 'g', 4);
// Align to first digit.
if (!string.startsWith(QLatin1Char('-')))
string.prepend(QLatin1Char(' '));
return string;
}
default:
return INVALID_MEMORY;
}
}
void MemoryViewWidget::UpdateBreakpointTags()
{
for (int i = 0; i < m_table->rowCount(); i++)
{
bool row_breakpoint = false;
for (int c = 0; c < m_data_columns; c++)
{
// Pull address from cell itself, helpful for dual column view.
auto cell = m_table->item(i, c + MISC_COLUMNS);
const u32 address = cell->data(USER_ROLE_CELL_ADDRESS).toUInt();
if (address == 0)
{
row_breakpoint = false;
continue;
}
if (m_address_space == AddressSpace::Type::Effective &&
m_system.GetPowerPC().GetMemChecks().GetMemCheck(address, GetTypeSize(m_type)) != nullptr)
{
row_breakpoint = true;
cell->setBackground(Qt::red);
}
else
{
cell->setBackground(Qt::transparent);
}
}
if (row_breakpoint)
{
m_table->item(i, 0)->setData(
Qt::DecorationRole,
Resources::GetScaledThemeIcon("debugger_breakpoint")
.pixmap(QSize(m_table->rowHeight(0) - 3, m_table->rowHeight(0) - 3)));
}
else
{
m_table->item(i, 0)->setData(Qt::DecorationRole, QIcon());
}
}
}
void MemoryViewWidget::SetAddressSpace(AddressSpace::Type address_space)
{
if (m_address_space == address_space)
{
return;
}
m_address_space = address_space;
Update();
}
AddressSpace::Type MemoryViewWidget::GetAddressSpace() const
{
return m_address_space;
}
std::vector<u8> MemoryViewWidget::ConvertTextToBytes(Type type, QString input_text)
{
if (type == Type::Null)
return {};
bool good = false;
int radix = 0;
switch (type)
{
case Type::ASCII:
{
const QByteArray qbytes = input_text.toUtf8();
std::vector<u8> bytes;
for (const char c : qbytes)
bytes.push_back(static_cast<u8>(c));
return bytes;
}
case Type::Float32:
{
const float float_value = input_text.toFloat(&good);
if (good)
{
const u32 value = Common::BitCast<u32>(float_value);
auto std_array = Common::BitCastToArray<u8>(Common::swap32(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Double:
{
const double double_value = input_text.toDouble(&good);
if (good)
{
const u64 value = Common::BitCast<u64>(double_value);
auto std_array = Common::BitCastToArray<u8>(Common::swap64(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Signed8:
{
const short value = input_text.toShort(&good, radix);
good &= std::numeric_limits<signed char>::min() <= value &&
value <= std::numeric_limits<signed char>::max();
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap8(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Signed16:
{
const short value = input_text.toShort(&good, radix);
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap16(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Signed32:
{
const int value = input_text.toInt(&good, radix);
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap32(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Hex8:
radix = 16;
[[fallthrough]];
case Type::Unsigned8:
{
const unsigned short value = input_text.toUShort(&good, radix);
good &= (value & 0xFF00) == 0;
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap8(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Hex16:
radix = 16;
[[fallthrough]];
case Type::Unsigned16:
{
const unsigned short value = input_text.toUShort(&good, radix);
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap16(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Hex32:
radix = 16;
[[fallthrough]];
case Type::Unsigned32:
{
const u32 value = input_text.toUInt(&good, radix);
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap32(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::Hex64:
{
const u64 value = input_text.toULongLong(&good, 16);
if (good)
{
auto std_array = Common::BitCastToArray<u8>(Common::swap64(value));
return std::vector<u8>(std_array.begin(), std_array.end());
}
break;
}
case Type::HexString:
{
// Confirm it is only hex bytes
const QRegularExpression is_hex(QStringLiteral("^([0-9A-F]{2})*$"),
QRegularExpression::CaseInsensitiveOption);
const QRegularExpressionMatch match = is_hex.match(input_text);
good = match.hasMatch();
if (good)
{
const QByteArray qbytes = QByteArray::fromHex(input_text.toUtf8());
std::vector<u8> bytes;
for (const char c : qbytes)
bytes.push_back(static_cast<u8>(c));
return bytes;
}
break;
}
default:
// Do nothing
break;
}
return {};
}
void MemoryViewWidget::SetDisplay(Type type, int bytes_per_row, int alignment, bool dual_view)
{
m_type = type;
m_bytes_per_row = bytes_per_row;
m_dual_view = dual_view;
if (alignment == 0)
m_alignment = GetTypeSize(type);
else
m_alignment = alignment;
CreateTable();
}
void MemoryViewWidget::SetBPType(BPType type)
{
m_bp_type = type;
}
void MemoryViewWidget::SetAddress(u32 address)
{
m_address_highlight = address;
if (m_address == address)
return;
m_address = address;
Update();
}
void MemoryViewWidget::SetBPLoggingEnabled(bool enabled)
{
m_do_log = enabled;
}
void MemoryViewWidget::ToggleBreakpoint(u32 addr, bool row)
{
if (m_address_space != AddressSpace::Type::Effective)
return;
const auto length = GetTypeSize(m_type);
const int breaks = row ? (m_bytes_per_row / length) : 1;
bool overlap = false;
auto& memchecks = m_system.GetPowerPC().GetMemChecks();
// Row breakpoint should either remove any breakpoint left on the row, or activate all
// breakpoints.
if (row && memchecks.OverlapsMemcheck(addr, m_bytes_per_row))
overlap = true;
for (int i = 0; i < breaks; i++)
{
u32 address = addr + length * i;
TMemCheck* check_ptr = memchecks.GetMemCheck(address, length);
if (check_ptr == nullptr && !overlap)
{
TMemCheck check;
check.start_address = address;
check.end_address = check.start_address + length - 1;
check.is_ranged = length > 0;
check.is_break_on_read = (m_bp_type == BPType::ReadOnly || m_bp_type == BPType::ReadWrite);
check.is_break_on_write = (m_bp_type == BPType::WriteOnly || m_bp_type == BPType::ReadWrite);
check.log_on_hit = m_do_log;
check.break_on_hit = true;
memchecks.Add(std::move(check));
}
else if (check_ptr != nullptr)
{
// Using the pointer fixes misaligned breakpoints (0x11 breakpoint in 0x10 aligned view).
memchecks.Remove(check_ptr->start_address);
}
}
emit BreakpointsChanged();
Update();
}
void MemoryViewWidget::OnCopyAddress(u32 addr)
{
QApplication::clipboard()->setText(QStringLiteral("%1").arg(addr, 8, 16, QLatin1Char('0')));
}
void MemoryViewWidget::OnCopyHex(u32 addr)
{
const auto length = GetTypeSize(m_type);
const AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_address_space);
const u64 value = [addr, accessors] {
Core::CPUThreadGuard guard(Core::System::GetInstance());
return accessors->ReadU64(guard, addr);
}();
QApplication::clipboard()->setText(
QStringLiteral("%1").arg(value, sizeof(u64) * 2, 16, QLatin1Char('0')).left(length * 2));
}
void MemoryViewWidget::OnContextMenu(const QPoint& pos)
{
auto* item_selected = m_table->itemAt(pos);
// We don't have a meaningful context menu to show for when the user right-clicks either free
// space in the table or the row breakpoint cell.
if (!item_selected || item_selected->data(USER_ROLE_IS_ROW_BREAKPOINT_CELL).toBool())
return;
const u32 addr = item_selected->data(USER_ROLE_CELL_ADDRESS).toUInt();
const bool item_has_value =
item_selected->data(USER_ROLE_VALUE_TYPE).toInt() != static_cast<int>(Type::Null) &&
[this, addr] {
const AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_address_space);
Core::CPUThreadGuard guard(Core::System::GetInstance());
return accessors->IsValidAddress(guard, addr);
}();
auto* menu = new QMenu(this);
menu->addAction(tr("Copy Address"), this, [this, addr] { OnCopyAddress(addr); });
auto* copy_hex = menu->addAction(tr("Copy Hex"), this, [this, addr] { OnCopyHex(addr); });
copy_hex->setEnabled(item_has_value);
auto* copy_value = menu->addAction(tr("Copy Value"), this, [item_selected] {
QApplication::clipboard()->setText(item_selected->text());
});
copy_value->setEnabled(item_has_value);
menu->addSeparator();
menu->addAction(tr("Show in code"), this, [this, addr] { emit ShowCode(addr); });
menu->addSeparator();
menu->addAction(tr("Add to watch"), this, [this, addr] {
const QString name = QStringLiteral("mem_%1").arg(addr, 8, 16, QLatin1Char('0'));
emit RequestWatch(name, addr);
});
menu->addAction(tr("Toggle Breakpoint"), this, [this, addr] { ToggleBreakpoint(addr, false); });
menu->exec(QCursor::pos());
}
void MemoryViewWidget::ScrollbarActionTriggered(int action)
{
const int difference = m_scrollbar->sliderPosition() - m_scrollbar->value();
if (difference == 0)
return;
if (m_scrollbar->isSliderDown())
{
// User is currently dragging the scrollbar.
// Adjust the memory view by the exact drag difference.
m_address += difference * m_bytes_per_row;
Update();
}
else
{
if (std::abs(difference) == 1)
{
// User clicked the arrows at the top or bottom, go up/down one row.
m_address += difference * m_bytes_per_row;
}
else
{
// User clicked the free part of the scrollbar, go up/down one page.
m_address += (difference < 0 ? -1 : 1) * m_bytes_per_row * m_table->rowCount();
}
Update();
// Manually reset the draggable part of the bar back to the center.
m_scrollbar->setSliderPosition(SCROLLBAR_CENTER);
}
}
void MemoryViewWidget::ScrollbarSliderReleased()
{
// Reset the draggable part of the bar back to the center.
m_scrollbar->setValue(SCROLLBAR_CENTER);
}
void MemoryViewWidget::SetFocus() const
{
m_table->setFocus();
}
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