1 files changed, 310 insertions, 0 deletions
diff --git a/src/yuzu/bootmanager.cpp b/src/yuzu/bootmanager.cpp
new file mode 100644
index 000000000..eb542ad4e
--- /dev/null
+++ b/src/yuzu/bootmanager.cpp
@@ -0,0 +1,310 @@
+#include <QApplication>
+#include <QHBoxLayout>
+#include <QKeyEvent>
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+// Required for screen DPI information
+#include <QScreen>
+#include <QWindow>
+#endif
+
+#include "citra_qt/bootmanager.h"
+#include "common/microprofile.h"
+#include "common/scm_rev.h"
+#include "common/string_util.h"
+#include "core/core.h"
+#include "core/frontend/framebuffer_layout.h"
+#include "core/settings.h"
+#include "input_common/keyboard.h"
+#include "input_common/main.h"
+#include "input_common/motion_emu.h"
+#include "network/network.h"
+
+EmuThread::EmuThread(GRenderWindow* render_window)
+    : exec_step(false), running(false), stop_run(false), render_window(render_window) {}
+
+void EmuThread::run() {
+    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::System::ResultStatus result = Core::System::GetInstance().RunLoop();
+            if (result != Core::System::ResultStatus::Success) {
+                emit ErrorThrown(result, Core::System::GetInstance().GetStatusDetails());
+            }
+
+            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::System::GetInstance().SingleStep();
+            emit DebugModeEntered();
+            yieldCurrentThread();
+
+            was_active = false;
+        } else {
+            std::unique_lock<std::mutex> lock(running_mutex);
+            running_cv.wait(lock, [this] { return IsRunning() || exec_step || stop_run; });
+        }
+    }
+
+    // Shutdown the core emulation
+    Core::System::GetInstance().Shutdown();
+
+#if MICROPROFILE_ENABLED
+    MicroProfileOnThreadExit();
+#endif
+
+    render_window->moveContext();
+}
+
+// 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) {}
+
+    void paintEvent(QPaintEvent* ev) override {
+        if (do_painting) {
+            QPainter painter(this);
+        }
+    }
+
+    void resizeEvent(QResizeEvent* ev) override {
+        parent->OnClientAreaResized(ev->size().width(), ev->size().height());
+        parent->OnFramebufferSizeChanged();
+    }
+
+    void DisablePainting() {
+        do_painting = false;
+    }
+    void EnablePainting() {
+        do_painting = true;
+    }
+
+private:
+    GRenderWindow* parent;
+    bool do_painting;
+};
+
+GRenderWindow::GRenderWindow(QWidget* parent, EmuThread* emu_thread)
+    : QWidget(parent), child(nullptr), emu_thread(emu_thread) {
+
+    std::string window_title = Common::StringFromFormat("Citra %s| %s-%s", Common::g_build_name,
+                                                        Common::g_scm_branch, Common::g_scm_desc);
+    setWindowTitle(QString::fromStdString(window_title));
+
+    InputCommon::Init();
+    Network::Init();
+}
+
+GRenderWindow::~GRenderWindow() {
+    InputCommon::Shutdown();
+    Network::Shutdown();
+}
+
+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
+}
+
+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
+    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;
+    UpdateCurrentFramebufferLayout(width, height);
+}
+
+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
+    if (parent() == nullptr)
+        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);
+}
+
+void GRenderWindow::keyPressEvent(QKeyEvent* event) {
+    InputCommon::GetKeyboard()->PressKey(event->key());
+}
+
+void GRenderWindow::keyReleaseEvent(QKeyEvent* event) {
+    InputCommon::GetKeyboard()->ReleaseKey(event->key());
+}
+
+void GRenderWindow::mousePressEvent(QMouseEvent* event) {
+    auto pos = event->pos();
+    if (event->button() == Qt::LeftButton) {
+        qreal pixelRatio = windowPixelRatio();
+        this->TouchPressed(static_cast<unsigned>(pos.x() * pixelRatio),
+                           static_cast<unsigned>(pos.y() * pixelRatio));
+    } else if (event->button() == Qt::RightButton) {
+        InputCommon::GetMotionEmu()->BeginTilt(pos.x(), pos.y());
+    }
+}
+
+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));
+    InputCommon::GetMotionEmu()->Tilt(pos.x(), pos.y());
+}
+
+void GRenderWindow::mouseReleaseEvent(QMouseEvent* event) {
+    if (event->button() == Qt::LeftButton)
+        this->TouchReleased();
+    else if (event->button() == Qt::RightButton)
+        InputCommon::GetMotionEmu()->EndTilt();
+}
+
+void GRenderWindow::focusOutEvent(QFocusEvent* event) {
+    QWidget::focusOutEvent(event);
+    InputCommon::GetKeyboard()->ReleaseAllKeys();
+}
+
+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(Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height);
+    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();
+}
+
+void GRenderWindow::showEvent(QShowEvent* event) {
+    QWidget::showEvent(event);
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+    // windowHandle() is not initialized until the Window is shown, so we connect it here.
+    connect(this->windowHandle(), SIGNAL(screenChanged(QScreen*)), this,
+            SLOT(OnFramebufferSizeChanged()), Qt::UniqueConnection);
+#endif
+}