Lime3DS/src/citra_qt/bootmanager.cpp

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#include <QApplication>
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#include <QHBoxLayout>
#include <QKeyEvent>
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
// Required for screen DPI information
#include <QScreen>
#include <QWindow>
#endif
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#include "citra_qt/bootmanager.h"
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#include "common/key_map.h"
#include "common/microprofile.h"
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#include "common/scm_rev.h"
#include "common/string_util.h"
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#include "core/core.h"
#include "core/settings.h"
#include "core/system.h"
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#include "video_core/debug_utils/debug_utils.h"
#include "video_core/video_core.h"
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#define APP_NAME "citra"
#define APP_VERSION "0.1-" VERSION
#define APP_TITLE APP_NAME " " APP_VERSION
#define COPYRIGHT "Copyright (C) 2013-2014 Citra Team"
EmuThread::EmuThread(GRenderWindow* render_window) :
exec_step(false), running(false), stop_run(false), render_window(render_window) {
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}
void EmuThread::run() {
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render_window->MakeCurrent();
MicroProfileOnThreadCreate("EmuThread");
stop_run = false;
// holds whether the cpu was running during the last iteration,
// so that the DebugModeLeft signal can be emitted before the
// next execution step
bool was_active = false;
while (!stop_run) {
if (running) {
if (!was_active)
emit DebugModeLeft();
Core::RunLoop();
was_active = running || exec_step;
if (!was_active && !stop_run)
emit DebugModeEntered();
} else if (exec_step) {
if (!was_active)
emit DebugModeLeft();
exec_step = false;
Core::SingleStep();
emit DebugModeEntered();
yieldCurrentThread();
was_active = false;
} else {
std::unique_lock<std::mutex> lock(running_mutex);
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running_cv.wait(lock, [this]{ return IsRunning() || exec_step || stop_run; });
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}
}
// Shutdown the core emulation
System::Shutdown();
#if MICROPROFILE_ENABLED
MicroProfileOnThreadExit();
#endif
render_window->moveContext();
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}
// This class overrides paintEvent and resizeEvent to prevent the GUI thread from stealing GL context.
// The corresponding functionality is handled in EmuThread instead
class GGLWidgetInternal : public QGLWidget
{
public:
GGLWidgetInternal(QGLFormat fmt, GRenderWindow* parent)
: QGLWidget(fmt, parent), parent(parent) {
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}
void paintEvent(QPaintEvent* ev) override {
if (do_painting) {
QPainter painter(this);
}
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}
void resizeEvent(QResizeEvent* ev) override {
parent->OnClientAreaResized(ev->size().width(), ev->size().height());
parent->OnFramebufferSizeChanged();
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}
void DisablePainting() { do_painting = false; }
void EnablePainting() { do_painting = true; }
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private:
GRenderWindow* parent;
bool do_painting;
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};
GRenderWindow::GRenderWindow(QWidget* parent, EmuThread* emu_thread) :
QWidget(parent), keyboard_id(0), emu_thread(emu_thread), child(nullptr) {
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std::string window_title = Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc);
setWindowTitle(QString::fromStdString(window_title));
keyboard_id = KeyMap::NewDeviceId();
ReloadSetKeymaps();
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}
void GRenderWindow::moveContext()
{
DoneCurrent();
// We need to move GL context to the swapping thread in Qt5
#if QT_VERSION > QT_VERSION_CHECK(5, 0, 0)
// If the thread started running, move the GL Context to the new thread. Otherwise, move it back.
auto thread = (QThread::currentThread() == qApp->thread() && emu_thread != nullptr) ? emu_thread : qApp->thread();
child->context()->moveToThread(thread);
#endif
}
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void GRenderWindow::SwapBuffers()
{
#if !defined(QT_NO_DEBUG)
// Qt debug runtime prints a bogus warning on the console if you haven't called makeCurrent
// since the last time you called swapBuffers. This presumably means something if you're using
// QGLWidget the "regular" way, but in our multi-threaded use case is harmless since we never
// call doneCurrent in this thread.
child->makeCurrent();
#endif
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child->swapBuffers();
}
void GRenderWindow::MakeCurrent()
{
child->makeCurrent();
}
void GRenderWindow::DoneCurrent()
{
child->doneCurrent();
}
void GRenderWindow::PollEvents() {
}
// On Qt 5.0+, this correctly gets the size of the framebuffer (pixels).
//
// Older versions get the window size (density independent pixels),
// and hence, do not support DPI scaling ("retina" displays).
// The result will be a viewport that is smaller than the extent of the window.
void GRenderWindow::OnFramebufferSizeChanged()
{
// Screen changes potentially incur a change in screen DPI, hence we should update the framebuffer size
qreal pixelRatio = windowPixelRatio();
unsigned width = child->QPaintDevice::width() * pixelRatio;
unsigned height = child->QPaintDevice::height() * pixelRatio;
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NotifyFramebufferLayoutChanged(EmuWindow::FramebufferLayout::DefaultScreenLayout(width, height));
}
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void GRenderWindow::BackupGeometry()
{
geometry = ((QGLWidget*)this)->saveGeometry();
}
void GRenderWindow::RestoreGeometry()
{
// We don't want to back up the geometry here (obviously)
QWidget::restoreGeometry(geometry);
}
void GRenderWindow::restoreGeometry(const QByteArray& geometry)
{
// Make sure users of this class don't need to deal with backing up the geometry themselves
QWidget::restoreGeometry(geometry);
BackupGeometry();
}
QByteArray GRenderWindow::saveGeometry()
{
// If we are a top-level widget, store the current geometry
// otherwise, store the last backup
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if (parent() == nullptr)
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return ((QGLWidget*)this)->saveGeometry();
else
return geometry;
}
qreal GRenderWindow::windowPixelRatio()
{
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
// windowHandle() might not be accessible until the window is displayed to screen.
return windowHandle() ? windowHandle()->screen()->devicePixelRatio() : 1.0f;
#else
return 1.0f;
#endif
}
void GRenderWindow::closeEvent(QCloseEvent* event) {
emit Closed();
QWidget::closeEvent(event);
}
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void GRenderWindow::keyPressEvent(QKeyEvent* event)
{
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KeyMap::PressKey(*this, { event->key(), keyboard_id });
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}
void GRenderWindow::keyReleaseEvent(QKeyEvent* event)
{
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KeyMap::ReleaseKey(*this, { event->key(), keyboard_id });
}
void GRenderWindow::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton)
{
auto pos = event->pos();
qreal pixelRatio = windowPixelRatio();
this->TouchPressed(static_cast<unsigned>(pos.x() * pixelRatio),
static_cast<unsigned>(pos.y() * pixelRatio));
}
}
void GRenderWindow::mouseMoveEvent(QMouseEvent *event)
{
auto pos = event->pos();
qreal pixelRatio = windowPixelRatio();
this->TouchMoved(std::max(static_cast<unsigned>(pos.x() * pixelRatio), 0u),
std::max(static_cast<unsigned>(pos.y() * pixelRatio), 0u));
}
void GRenderWindow::mouseReleaseEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton)
this->TouchReleased();
}
void GRenderWindow::ReloadSetKeymaps()
{
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KeyMap::ClearKeyMapping(keyboard_id);
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for (int i = 0; i < Settings::NativeInput::NUM_INPUTS; ++i) {
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KeyMap::SetKeyMapping({ Settings::values.input_mappings[Settings::NativeInput::All[i]], keyboard_id }, KeyMap::mapping_targets[i]);
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}
}
void GRenderWindow::OnClientAreaResized(unsigned width, unsigned height)
{
NotifyClientAreaSizeChanged(std::make_pair(width, height));
}
void GRenderWindow::InitRenderTarget() {
if (child) {
delete child;
}
if (layout()) {
delete layout();
}
// TODO: One of these flags might be interesting: WA_OpaquePaintEvent, WA_NoBackground, WA_DontShowOnScreen, WA_DeleteOnClose
QGLFormat fmt;
fmt.setVersion(3, 3);
fmt.setProfile(QGLFormat::CoreProfile);
fmt.setSwapInterval(Settings::values.use_vsync);
// Requests a forward-compatible context, which is required to get a 3.2+ context on OS X
fmt.setOption(QGL::NoDeprecatedFunctions);
child = new GGLWidgetInternal(fmt, this);
QBoxLayout* layout = new QHBoxLayout(this);
resize(VideoCore::kScreenTopWidth, VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight);
layout->addWidget(child);
layout->setMargin(0);
setLayout(layout);
OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
OnFramebufferSizeChanged();
NotifyClientAreaSizeChanged(std::pair<unsigned, unsigned>(child->width(), child->height()));
BackupGeometry();
}
void GRenderWindow::OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) {
setMinimumSize(minimal_size.first, minimal_size.second);
}
void GRenderWindow::OnEmulationStarting(EmuThread* emu_thread) {
this->emu_thread = emu_thread;
child->DisablePainting();
}
void GRenderWindow::OnEmulationStopping() {
emu_thread = nullptr;
child->EnablePainting();
}
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void GRenderWindow::showEvent(QShowEvent * event) {
QWidget::showEvent(event);
// windowHandle() is not initialized until the Window is shown, so we connect it here.
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
connect(this->windowHandle(), SIGNAL(screenChanged(QScreen*)), this, SLOT(OnFramebufferSizeChanged()), Qt::UniqueConnection);
#endif
}