o cleanup

tools/bsnes/ui_qt/Makefile

@@ -0,0 +1,85 @@
+##############################
+### platform configuration ###
+##############################
+
+objects := main $(if $(call streq,$(platform),win),resource) $(objects)
+
+moc = moc
+rcc = rcc
+
+ifeq ($(platform),x) # X11
+  link += $(call mklib,Xtst)
+  link += `pkg-config --libs QtCore QtGui`
+  qtflags = `pkg-config --cflags QtCore QtGui`
+else ifeq ($(platform),win) # Windows
+  qtdir = c:/qt450
+
+  link += $(call mklibpath,$(qtdir)/lib)
+  link += $(call mklibpath,$(qtdir)/plugins/imageformats)
+
+  link += $(call mklib,mingw32)
+  link += $(call mklib,qtmain)
+  link += $(call mklib,QtGui)
+  link += $(call mklib,comdlg32)
+  link += $(call mklib,oleaut32)
+  link += $(call mklib,imm32)
+  link += $(call mklib,winmm)
+  link += $(call mklib,winspool)
+  link += $(call mklib,msimg32)
+  link += $(call mklib,QtCore)
+  link += $(call mklib,ole32)
+  link += $(call mklib,advapi32)
+  link += $(call mklib,ws2_32)
+  link += $(call mklib,uuid)
+  link += $(call mklib,gdi32)
+
+  # optional image-file support:
+  # link += $(call mklib,qjpeg)
+  # link += $(call mklib,qmng)
+
+  qtflags  = $(call mkincpath,$(qtdir)/include)
+  qtflags += $(call mkincpath,$(qtdir)/include/QtCore)
+  qtflags += $(call mkincpath,$(qtdir)/include/QtGui)
+endif
+
+moc_objects = \
+  $(ui)/base/main.moc \
+  $(ui)/base/loader.moc \
+  $(ui)/base/htmlviewer.moc \
+  $(ui)/base/about.moc \
+  $(ui)/settings/settings.moc \
+  $(ui)/settings/video.moc \
+  $(ui)/settings/audio.moc \
+  $(ui)/settings/input.moc \
+  $(ui)/settings/paths.moc \
+  $(ui)/settings/cheateditor.moc \
+  $(ui)/settings/advanced.moc \
+  $(ui)/settings/utility/inputcapture.moc \
+  $(ui)/settings/utility/codeeditor.moc \
+
+#############
+### rules ###
+#############
+
+%.moc: $<; $(moc) $(patsubst %.moc,%.hpp,$@) -o $@
+$(foreach object,$(moc_objects),$(eval $(object): $(patsubst %.moc,%.hpp,$(object))))
+
+obj/main.$(obj): $(ui)/main.cpp \
+$(ui)/* $(ui)/input/* $(ui)/utility/* $(ui)/base/* $(ui)/settings/* $(ui)/settings/utility/* \
+data/*
+	$(call compile,$(qtflags))
+
+$(ui)/resource/resource.rcc: $(ui)/resource/resource.qrc data/*
+	$(rcc) $(ui)/resource/resource.qrc -o $(ui)/resource/resource.rcc
+
+obj/resource.$(obj): $(ui)/resource/resource.rc
+	windres $(ui)/resource/resource.rc obj/resource.$(obj)
+
+###############
+### targets ###
+###############
+
+ui_build: $(ui)/resource/resource.rcc $(moc_objects);
+ui_clean:
+	-$(foreach object,$(moc_objects),@$(call delete,$(object)))
+	-@$(call delete,$(ui)/resource/resource.rcc)

tools/bsnes/ui_qt/base/about.cpp

@@ -0,0 +1,35 @@
+void AboutWindow::setup() {
+  window = new QWidget;
+  window->setObjectName("about-window");
+  window->setWindowTitle("About bsnes ...");
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0); {
+    logo = new Logo;
+    logo->setFixedSize(600, 106);
+    layout->addWidget(logo);
+    layout->addSpacing(Style::WidgetSpacing);
+
+    info = new QLabel(
+      "<table>"
+      "<tr><td align='right'><b>Version: </b></td><td>" BSNES_VERSION "</td></tr>"
+      "<tr><td align='right'><b>Author: </b></td><td>byuu</td></tr>"
+      "<tr><td align='right'><b>Homepage: </b></td><td>http://byuu.org/</td></tr>"
+      "</table>"
+    );
+    layout->addWidget(info);
+
+    spacer = new QWidget;
+    spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    layout->addWidget(spacer);
+  }
+
+  window->setLayout(layout);
+}
+
+void AboutWindow::Logo::paintEvent(QPaintEvent*) {
+  QPainter painter(this);
+  QPixmap pixmap(":/logo.png");
+  painter.drawPixmap(0, 0, pixmap);
+}

tools/bsnes/ui_qt/base/about.hpp

@@ -0,0 +1,16 @@
+class AboutWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *window;
+    QVBoxLayout *layout;
+      struct Logo : public QWidget {
+        void paintEvent(QPaintEvent*);
+      } *logo;
+      QLabel *info;
+      QWidget *spacer;
+
+  void setup();
+
+public slots:
+} *winAbout;

tools/bsnes/ui_qt/base/htmlviewer.cpp

@@ -0,0 +1,20 @@
+void HtmlViewerWindow::setup() {
+  window = new QWidget;
+  window->setObjectName("html-window");
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0); {
+    document = new QTextBrowser;
+    layout->addWidget(document);
+  }
+
+  window->setLayout(layout);
+  window->setMinimumSize(560, 480);
+}
+
+void HtmlViewerWindow::show(const char *title, const char *htmlData) {
+  document->setHtml(utf8() << htmlData);
+  window->setWindowTitle(title);
+  utility.showCentered(window);
+}

tools/bsnes/ui_qt/base/htmlviewer.hpp

@@ -0,0 +1,13 @@
+class HtmlViewerWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *window;
+    QVBoxLayout *layout;
+      QTextBrowser *document;
+
+  void setup();
+  void show(const char *title, const char *htmlData);
+
+public slots:
+} *winHtmlViewer;

tools/bsnes/ui_qt/base/loader.cpp

@@ -0,0 +1,198 @@
+void LoaderWindow::setup() {
+  window = new QWidget;
+  window->setObjectName("loader-window");
+  window->setMinimumWidth(520);
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0);
+
+  grid = new QGridLayout; {
+    baseLabel = new QLabel("Base cartridge:");
+    grid->addWidget(baseLabel, 0, 0);
+
+    baseFile = new QLineEdit;
+    baseFile->setReadOnly(true);
+    grid->addWidget(baseFile, 0, 1);
+
+    baseBrowse = new QPushButton("Browse ...");
+    grid->addWidget(baseBrowse, 0, 2);
+
+    baseClear = new QPushButton("Clear");
+    grid->addWidget(baseClear, 0, 3);
+
+    slot1Label = new QLabel("Slot A cartridge:");
+    grid->addWidget(slot1Label, 1, 0);
+
+    slot1File = new QLineEdit;
+    slot1File->setReadOnly(true);
+    grid->addWidget(slot1File, 1, 1);
+
+    slot1Browse = new QPushButton("Browse ...");
+    grid->addWidget(slot1Browse, 1, 2);
+
+    slot1Clear = new QPushButton("Clear");
+    grid->addWidget(slot1Clear, 1, 3);
+
+    slot2Label = new QLabel("Slot B cartridge:");
+    grid->addWidget(slot2Label, 2, 0);
+
+    slot2File = new QLineEdit;
+    slot2File->setReadOnly(true);
+    grid->addWidget(slot2File, 2, 1);
+
+    slot2Browse = new QPushButton("Browse ...");
+    grid->addWidget(slot2Browse, 2, 2);
+
+    slot2Clear = new QPushButton("Clear");
+    grid->addWidget(slot2Clear, 2, 3);
+  }
+  grid->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(grid);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  controls = new QHBoxLayout; {
+    load = new QPushButton("Load");
+    controls->addWidget(load);
+
+    cancel = new QPushButton("Cancel");
+    controls->addWidget(cancel);
+  }
+  controls->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(controls);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  window->setLayout(layout);
+  connect(baseBrowse, SIGNAL(released()), this, SLOT(selectBaseCartridge()));
+  connect(baseClear, SIGNAL(released()), this, SLOT(clearBaseCartridge()));
+  connect(slot1Browse, SIGNAL(released()), this, SLOT(selectSlot1Cartridge()));
+  connect(slot1Clear, SIGNAL(released()), this, SLOT(clearSlot1Cartridge()));
+  connect(slot2Browse, SIGNAL(released()), this, SLOT(selectSlot2Cartridge()));
+  connect(slot2Clear, SIGNAL(released()), this, SLOT(clearSlot2Cartridge()));
+  connect(load, SIGNAL(released()), this, SLOT(onLoad()));
+  connect(cancel, SIGNAL(released()), this, SLOT(onCancel()));
+}
+
+void LoaderWindow::syncUi() {
+  //only allow load when a base file is specified ...
+  load->setEnabled(baseFile->text().length() > 0);
+}
+
+void LoaderWindow::loadBsxSlottedCartridge(const char *filebase, const char *fileSlot1) {
+  window->hide();
+  baseLabel->show(),  baseFile->show(),  baseBrowse->show(),  baseClear->show();
+  slot1Label->show(), slot1File->show(), slot1Browse->show(), slot1Clear->show();
+  slot2Label->hide(), slot2File->hide(), slot2Browse->hide(), slot2Clear->hide();
+
+  slot1Label->setText("Slot cartridge:");
+
+  baseFile->setText(filebase);
+  slot1File->setText(fileSlot1);
+
+  syncUi();
+  mode = ModeBsxSlotted;
+  showWindow("Load BS-X Slotted Cartridge");
+}
+
+void LoaderWindow::loadBsxCartridge(const char *fileBase, const char *fileSlot1) {
+  window->hide();
+  baseLabel->show(),  baseFile->show(),  baseBrowse->show(),  baseClear->show();
+  slot1Label->show(), slot1File->show(), slot1Browse->show(), slot1Clear->show();
+  slot2Label->hide(), slot2File->hide(), slot2Browse->hide(), slot2Clear->hide();
+
+  slot1Label->setText("Slot cartridge:");
+
+  baseFile->setText(fileBase);
+  slot1File->setText(fileSlot1);
+
+  syncUi();
+  mode = ModeBsx;
+  showWindow("Load BS-X Cartridge");
+}
+
+void LoaderWindow::loadSufamiTurboCartridge(const char *fileBase, const char *fileSlot1, const char *fileSlot2) {
+  window->hide();
+  baseLabel->show(),  baseFile->show(),  baseBrowse->show(),  baseClear->show();
+  slot1Label->show(), slot1File->show(), slot1Browse->show(), slot1Clear->show();
+  slot2Label->show(), slot2File->show(), slot2Browse->show(), slot2Clear->show();
+
+  slot1Label->setText("Slot A cartridge:");
+  slot2Label->setText("Slot B cartridge:");
+
+  baseFile->setText(fileBase);
+  slot1File->setText(fileSlot1);
+  slot2File->setText(fileSlot2);
+
+  syncUi();
+  mode = ModeSufamiTurbo;
+  showWindow("Load Sufami Turbo Cartridge");
+}
+
+void LoaderWindow::showWindow(const char *title) {
+  window->setWindowTitle(title);
+  utility.showCentered(window);
+  load->setFocus();
+}
+
+void LoaderWindow::selectBaseCartridge() {
+  string filename = utility.selectCartridge();
+  if(filename.length() > 0) baseFile->setText(utf8() << filename);
+  syncUi();
+}
+
+void LoaderWindow::clearBaseCartridge() {
+  baseFile->setText("");
+  syncUi();
+}
+
+void LoaderWindow::selectSlot1Cartridge() {
+  string filename = utility.selectCartridge();
+  if(filename.length() > 0) slot1File->setText(utf8() << filename);
+  syncUi();
+}
+
+void LoaderWindow::clearSlot1Cartridge() {
+  slot1File->setText("");
+  syncUi();
+}
+
+void LoaderWindow::selectSlot2Cartridge() {
+  string filename = utility.selectCartridge();
+  if(filename.length() > 0) slot2File->setText(utf8() << filename);
+  syncUi();
+}
+
+void LoaderWindow::clearSlot2Cartridge() {
+  slot2File->setText("");
+  syncUi();
+}
+
+void LoaderWindow::onLoad() {
+  window->hide();
+  string base  = baseFile->text().toUtf8().data();
+  string slot1 = slot1File->text().toUtf8().data();
+  string slot2 = slot2File->text().toUtf8().data();
+
+  switch(mode) {
+    case ModeBsxSlotted: {
+      utility.loadCartridgeBsxSlotted(base, slot1);
+    } break;
+
+    case ModeBsx: {
+      snes.config.path.bsx = base;
+      utility.loadCartridgeBsx(base, slot1);
+    } break;
+
+    case ModeSufamiTurbo: {
+      snes.config.path.st = base;
+      utility.loadCartridgeSufamiTurbo(base, slot1, slot2);
+    } break;
+  }
+}
+
+void LoaderWindow::onCancel() {
+  window->hide();
+}

tools/bsnes/ui_qt/base/loader.hpp

@@ -0,0 +1,45 @@
+class LoaderWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *window;
+    QVBoxLayout *layout;
+      QGridLayout *grid;
+        QLabel *baseLabel;
+        QLineEdit *baseFile;
+        QPushButton *baseBrowse;
+        QPushButton *baseClear;
+        QLabel *slot1Label;
+        QLineEdit *slot1File;
+        QPushButton *slot1Browse;
+        QPushButton *slot1Clear;
+        QLabel *slot2Label;
+        QLineEdit *slot2File;
+        QPushButton *slot2Browse;
+        QPushButton *slot2Clear;
+      QHBoxLayout *controls;
+        QPushButton *load;
+        QPushButton *cancel;
+      QWidget *spacer;
+
+  void setup();
+  void syncUi();
+  void loadBsxSlottedCartridge(const char*, const char*);
+  void loadBsxCartridge(const char*, const char*);
+  void loadSufamiTurboCartridge(const char*, const char*, const char*);
+
+public slots:
+  void selectBaseCartridge();
+  void clearBaseCartridge();
+  void selectSlot1Cartridge();
+  void clearSlot1Cartridge();
+  void selectSlot2Cartridge();
+  void clearSlot2Cartridge();
+
+  void onLoad();
+  void onCancel();
+
+private:
+  enum mode_t { ModeBsxSlotted, ModeBsx, ModeSufamiTurbo } mode;
+  void showWindow(const char *title);
+} *winLoader;

tools/bsnes/ui_qt/base/main.cpp

@@ -0,0 +1,371 @@
+void MainWindow::setup() {
+  window = new Window;
+  window->setObjectName("main-window");
+  window->setWindowTitle(BSNES_TITLE);
+
+  system = window->menuBar()->addMenu("&System");
+    system_load = system->addAction("&Load Cartridge ...");
+    system->addSeparator();
+    system_power = system->addMenu("&Power");
+      system_power_on = system_power->addAction("On");
+      system_power_on->setCheckable(true);
+      system_power_off = system_power->addAction("Off");
+      system_power_off->setCheckable(true);
+    system_reset = system->addAction("&Reset");
+    system->addSeparator();
+    system_port1 = system->addMenu("Controller Port 1");
+      system_port1_none = system_port1->addAction("&None");
+      system_port1_none->setCheckable(true);
+      system_port1_joypad = system_port1->addAction("&Joypad");
+      system_port1_joypad->setCheckable(true);
+      system_port1_multitap = system_port1->addAction("&Multitap");
+      system_port1_multitap->setCheckable(true);
+      system_port1_mouse = system_port1->addAction("M&ouse");
+      system_port1_mouse->setCheckable(true);
+    system_port2 = system->addMenu("Controller Port 2");
+      system_port2_none = system_port2->addAction("&None");
+      system_port2_none->setCheckable(true);
+      system_port2_joypad = system_port2->addAction("&Joypad");
+      system_port2_joypad->setCheckable(true);
+      system_port2_multitap = system_port2->addAction("&Multitap");
+      system_port2_multitap->setCheckable(true);
+      system_port2_mouse = system_port2->addAction("M&ouse");
+      system_port2_mouse->setCheckable(true);
+      system_port2_superscope = system_port2->addAction("&Super Scope");
+      system_port2_superscope->setCheckable(true);
+      system_port2_justifier = system_port2->addAction("&Justifier");
+      system_port2_justifier->setCheckable(true);
+      system_port2_justifiers = system_port2->addAction("&Two Justifiers");
+      system_port2_justifiers->setCheckable(true);
+    system->addSeparator();
+    system_exit = system->addAction("E&xit");
+    system_exit->setMenuRole(QAction::QuitRole);
+
+  settings = window->menuBar()->addMenu("S&ettings");
+    settings_videoMode = settings->addMenu("&Video Mode");
+      settings_videoMode_1x = settings_videoMode->addAction("Scale &1x");
+      settings_videoMode_1x->setCheckable(true);
+      settings_videoMode_2x = settings_videoMode->addAction("Scale &2x");
+      settings_videoMode_2x->setCheckable(true);
+      settings_videoMode_3x = settings_videoMode->addAction("Scale &3x");
+      settings_videoMode_3x->setCheckable(true);
+      settings_videoMode_4x = settings_videoMode->addAction("Scale &4x");
+      settings_videoMode_4x->setCheckable(true);
+      settings_videoMode_max = settings_videoMode->addAction("Scale &Max");
+      settings_videoMode_max->setCheckable(true);
+      settings_videoMode_max->setStatusTip("Scale video output to fill as much of the screen as possible");
+      settings_videoMode->addSeparator();
+      settings_videoMode_correctAspectRatio = settings_videoMode->addAction("&Correct Aspect Ratio");
+      settings_videoMode_correctAspectRatio->setStatusTip("Match pixel width-to-height ratio of TV");
+      settings_videoMode_correctAspectRatio->setCheckable(true);
+      settings_videoMode_fullscreen = settings_videoMode->addAction("&Fullscreen");
+      settings_videoMode_fullscreen->setCheckable(true);
+      settings_videoMode->addSeparator();
+      settings_videoMode_ntsc = settings_videoMode->addAction("&NTSC");
+      settings_videoMode_ntsc->setCheckable(true);
+      settings_videoMode_ntsc->setStatusTip("Size video output window to match NTSC TV spec");
+      settings_videoMode_pal = settings_videoMode->addAction("&PAL");
+      settings_videoMode_pal->setCheckable(true);
+      settings_videoMode_pal->setStatusTip("Size video output window to match PAL TV spec");
+    settings_videoFilter = settings->addMenu("Video &Filter");
+      settings_videoFilter_point = settings_videoFilter->addAction("&Point");
+      settings_videoFilter_point->setCheckable(true);
+      settings_videoFilter_point->setStatusTip("Use pixellated hardware video scaling");
+      settings_videoFilter_linear = settings_videoFilter->addAction("&Linear");
+      settings_videoFilter_linear->setCheckable(true);
+      settings_videoFilter_linear->setStatusTip("Use smoothed hardware video scaling");
+      settings_videoFilter->addSeparator();
+      settings_videoFilter_none = settings_videoFilter->addAction("&None");
+      settings_videoFilter_none->setCheckable(true);
+      settings_videoFilter_scanline = settings_videoFilter->addAction("&Scanline");
+      settings_videoFilter_scanline->setCheckable(true);
+      settings_videoFilter_scale2x = settings_videoFilter->addAction("S&cale2x");
+      settings_videoFilter_scale2x->setCheckable(true);
+      settings_videoFilter_hq2x = settings_videoFilter->addAction("&HQ2x");
+      settings_videoFilter_hq2x->setCheckable(true);
+      settings_videoFilter_ntsc = settings_videoFilter->addAction("N&TSC");
+      settings_videoFilter_ntsc->setCheckable(true);
+    settings->addSeparator();
+    settings_muteAudio = settings->addAction("&Mute Audio Output");
+    settings_muteAudio->setCheckable(true);
+    settings->addSeparator();
+    settings_emulationSpeed = settings->addMenu("&Emulation Speed");
+      settings_emulationSpeed_slowest = settings_emulationSpeed->addAction("50%");
+      settings_emulationSpeed_slowest->setCheckable(true);
+      settings_emulationSpeed_slow = settings_emulationSpeed->addAction("75%");
+      settings_emulationSpeed_slow->setCheckable(true);
+      settings_emulationSpeed_normal = settings_emulationSpeed->addAction("100%");
+      settings_emulationSpeed_normal->setCheckable(true);
+      settings_emulationSpeed_fast = settings_emulationSpeed->addAction("150%");
+      settings_emulationSpeed_fast->setCheckable(true);
+      settings_emulationSpeed_fastest = settings_emulationSpeed->addAction("200%");
+      settings_emulationSpeed_fastest->setCheckable(true);
+      settings_emulationSpeed->addSeparator();
+      settings_emulationSpeed_syncVideo = settings_emulationSpeed->addAction("Sync &Video");
+      settings_emulationSpeed_syncVideo->setCheckable(true);
+      settings_emulationSpeed_syncVideo->setStatusTip("Sync video output to vertical refresh rate");
+      settings_emulationSpeed_syncAudio = settings_emulationSpeed->addAction("Sync &Audio");
+      settings_emulationSpeed_syncAudio->setCheckable(true);
+      settings_emulationSpeed_syncAudio->setStatusTip("Sync audio output to sound card output rate");
+    settings_configuration = settings->addAction("&Configuration ...");
+    settings_configuration->setMenuRole(QAction::PreferencesRole);
+
+  help = window->menuBar()->addMenu("&Help");
+    help_documentation = help->addAction("Documentation ...");
+    help_license = help->addAction("License ...");
+    help->addSeparator();
+    help_about = help->addAction("&About ...");
+    help_about->setMenuRole(QAction::AboutRole);
+
+  canvasContainer = new CanvasObject;
+  canvasContainer->setAcceptDrops(true); {
+    canvasContainer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    canvasContainer->setObjectName("backdrop");
+
+    canvasLayout = new QVBoxLayout; {
+      canvasLayout->setMargin(0);
+      canvasLayout->setAlignment(Qt::AlignCenter);
+
+      canvas = new CanvasWidget;
+      canvas->setAcceptDrops(true);
+      canvas->setAttribute(Qt::WA_PaintOnScreen, true);  //disable Qt painting on focus / resize
+
+      QPalette palette;
+      palette.setColor(QPalette::Window, QColor(0, 0, 0));
+      canvas->setPalette(palette);
+      canvas->setAutoFillBackground(true);
+    }
+    canvasLayout->addWidget(canvas);
+  }
+  canvasContainer->setLayout(canvasLayout);
+
+  window->statusBar()->showMessage("");
+  systemState = new QLabel;
+  window->statusBar()->addPermanentWidget(systemState);
+
+  window->setCentralWidget(canvasContainer);
+
+  //slots
+  connect(system_load, SIGNAL(triggered()), this, SLOT(loadCartridge()));
+  connect(system_power_on, SIGNAL(triggered()), this, SLOT(powerOn()));
+  connect(system_power_off, SIGNAL(triggered()), this, SLOT(powerOff()));
+  connect(system_reset, SIGNAL(triggered()), this, SLOT(reset()));
+  connect(system_port1_none, SIGNAL(triggered()), this, SLOT(setPort1None()));
+  connect(system_port1_joypad, SIGNAL(triggered()), this, SLOT(setPort1Joypad()));
+  connect(system_port1_multitap, SIGNAL(triggered()), this, SLOT(setPort1Multitap()));
+  connect(system_port1_mouse, SIGNAL(triggered()), this, SLOT(setPort1Mouse()));
+  connect(system_port2_none, SIGNAL(triggered()), this, SLOT(setPort2None()));
+  connect(system_port2_joypad, SIGNAL(triggered()), this, SLOT(setPort2Joypad()));
+  connect(system_port2_multitap, SIGNAL(triggered()), this, SLOT(setPort2Multitap()));
+  connect(system_port2_mouse, SIGNAL(triggered()), this, SLOT(setPort2Mouse()));
+  connect(system_port2_superscope, SIGNAL(triggered()), this, SLOT(setPort2SuperScope()));
+  connect(system_port2_justifier, SIGNAL(triggered()), this, SLOT(setPort2Justifier()));
+  connect(system_port2_justifiers, SIGNAL(triggered()), this, SLOT(setPort2Justifiers()));
+  connect(system_exit, SIGNAL(triggered()), this, SLOT(quit()));
+  connect(settings_videoMode_1x, SIGNAL(triggered()), this, SLOT(setVideoMode1x()));
+  connect(settings_videoMode_2x, SIGNAL(triggered()), this, SLOT(setVideoMode2x()));
+  connect(settings_videoMode_3x, SIGNAL(triggered()), this, SLOT(setVideoMode3x()));
+  connect(settings_videoMode_4x, SIGNAL(triggered()), this, SLOT(setVideoMode4x()));
+  connect(settings_videoMode_max, SIGNAL(triggered()), this, SLOT(setVideoModeMax()));
+  connect(settings_videoMode_correctAspectRatio, SIGNAL(triggered()), this, SLOT(toggleAspectCorrection()));
+  connect(settings_videoMode_fullscreen, SIGNAL(triggered()), this, SLOT(toggleFullscreen()));
+  connect(settings_videoMode_ntsc, SIGNAL(triggered()), this, SLOT(setVideoNtsc()));
+  connect(settings_videoMode_pal, SIGNAL(triggered()), this, SLOT(setVideoPal()));
+  connect(settings_videoFilter_point, SIGNAL(triggered()), this, SLOT(setPointFilter()));
+  connect(settings_videoFilter_linear, SIGNAL(triggered()), this, SLOT(setLinearFilter()));
+  connect(settings_videoFilter_none, SIGNAL(triggered()), this, SLOT(setNoFilter()));
+  connect(settings_videoFilter_scanline, SIGNAL(triggered()), this, SLOT(setScanlineFilter()));
+  connect(settings_videoFilter_scale2x, SIGNAL(triggered()), this, SLOT(setScale2xFilter()));
+  connect(settings_videoFilter_hq2x, SIGNAL(triggered()), this, SLOT(setHq2xFilter()));
+  connect(settings_videoFilter_ntsc, SIGNAL(triggered()), this, SLOT(setNtscFilter()));
+  connect(settings_muteAudio, SIGNAL(triggered()), this, SLOT(muteAudio()));
+  connect(settings_emulationSpeed_slowest, SIGNAL(triggered()), this, SLOT(setSpeedSlowest()));
+  connect(settings_emulationSpeed_slow, SIGNAL(triggered()), this, SLOT(setSpeedSlow()));
+  connect(settings_emulationSpeed_normal, SIGNAL(triggered()), this, SLOT(setSpeedNormal()));
+  connect(settings_emulationSpeed_fast, SIGNAL(triggered()), this, SLOT(setSpeedFast()));
+  connect(settings_emulationSpeed_fastest, SIGNAL(triggered()), this, SLOT(setSpeedFastest()));
+  connect(settings_emulationSpeed_syncVideo, SIGNAL(triggered()), this, SLOT(syncVideo()));
+  connect(settings_emulationSpeed_syncAudio, SIGNAL(triggered()), this, SLOT(syncAudio()));
+  connect(settings_configuration, SIGNAL(triggered()), this, SLOT(showConfigWindow()));
+  connect(help_documentation, SIGNAL(triggered()), this, SLOT(showDocumentation()));
+  connect(help_license, SIGNAL(triggered()), this, SLOT(showLicense()));
+  connect(help_about, SIGNAL(triggered()), this, SLOT(showAbout()));
+
+  syncUi();
+}
+
+void MainWindow::syncUi() {
+  system_power->setEnabled(cartridge.loaded());
+  system_power_on->setChecked (application.power == true);
+  system_power_off->setChecked(application.power == false);
+  system_reset->setEnabled(cartridge.loaded() && application.power);
+
+  system_port1_none->setChecked      (snes.config.controller_port1 == SNES::Input::DeviceNone);
+  system_port1_joypad->setChecked    (snes.config.controller_port1 == SNES::Input::DeviceJoypad);
+  system_port1_multitap->setChecked  (snes.config.controller_port1 == SNES::Input::DeviceMultitap);
+  system_port1_mouse->setChecked     (snes.config.controller_port1 == SNES::Input::DeviceMouse);
+  system_port2_none->setChecked      (snes.config.controller_port2 == SNES::Input::DeviceNone);
+  system_port2_joypad->setChecked    (snes.config.controller_port2 == SNES::Input::DeviceJoypad);
+  system_port2_multitap->setChecked  (snes.config.controller_port2 == SNES::Input::DeviceMultitap);
+  system_port2_mouse->setChecked     (snes.config.controller_port2 == SNES::Input::DeviceMouse);
+  system_port2_superscope->setChecked(snes.config.controller_port2 == SNES::Input::DeviceSuperScope);
+  system_port2_justifier->setChecked (snes.config.controller_port2 == SNES::Input::DeviceJustifier);
+  system_port2_justifiers->setChecked(snes.config.controller_port2 == SNES::Input::DeviceJustifiers);
+
+  settings_videoMode_1x->setChecked (config.video.context->multiplier == 1);
+  settings_videoMode_2x->setChecked (config.video.context->multiplier == 2);
+  settings_videoMode_3x->setChecked (config.video.context->multiplier == 3);
+  settings_videoMode_4x->setChecked (config.video.context->multiplier == 4);
+  settings_videoMode_max->setChecked(config.video.context->multiplier >= 5);
+
+  settings_videoMode_correctAspectRatio->setChecked(config.video.context->correctAspectRatio);
+  settings_videoMode_fullscreen->setChecked(config.video.isFullscreen);
+  settings_videoMode_ntsc->setChecked(config.video.context->region == 0);
+  settings_videoMode_pal->setChecked (config.video.context->region == 1);
+
+  settings_videoFilter_point->setChecked   (config.video.context->hwFilter == 0);
+  settings_videoFilter_linear->setChecked  (config.video.context->hwFilter == 1);
+  settings_videoFilter_none->setChecked    (config.video.context->swFilter == 0);
+  settings_videoFilter_scanline->setChecked(config.video.context->swFilter == 1);
+  settings_videoFilter_scale2x->setChecked (config.video.context->swFilter == 2);
+  settings_videoFilter_hq2x->setChecked    (config.video.context->swFilter == 3);
+  settings_videoFilter_ntsc->setChecked    (config.video.context->swFilter == 4);
+
+  settings_muteAudio->setChecked(config.audio.mute);
+
+  settings_emulationSpeed_slowest->setChecked(config.system.speed == 0);
+  settings_emulationSpeed_slow->setChecked   (config.system.speed == 1);
+  settings_emulationSpeed_normal->setChecked (config.system.speed == 2);
+  settings_emulationSpeed_fast->setChecked   (config.system.speed == 3);
+  settings_emulationSpeed_fastest->setChecked(config.system.speed == 4);
+
+  settings_emulationSpeed_syncVideo->setChecked(config.video.synchronize);
+  settings_emulationSpeed_syncAudio->setChecked(config.audio.synchronize);
+}
+
+void MainWindow::loadCartridge() {
+  string filename = utility.selectCartridge();
+  if(filename.length() > 0) utility.loadCartridge(filename);
+}
+
+void MainWindow::powerOn()  { utility.modifySystemState(Utility::PowerOn); }
+void MainWindow::powerOff() { utility.modifySystemState(Utility::PowerOff); }
+void MainWindow::reset()    { utility.modifySystemState(Utility::Reset); }
+
+void MainWindow::setPort1None()       { snes.config.controller_port1 = SNES::Input::DeviceNone;       utility.updateControllers(); syncUi(); }
+void MainWindow::setPort1Joypad()     { snes.config.controller_port1 = SNES::Input::DeviceJoypad;     utility.updateControllers(); syncUi(); }
+void MainWindow::setPort1Multitap()   { snes.config.controller_port1 = SNES::Input::DeviceMultitap;   utility.updateControllers(); syncUi(); }
+void MainWindow::setPort1Mouse()      { snes.config.controller_port1 = SNES::Input::DeviceMouse;      utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2None()       { snes.config.controller_port2 = SNES::Input::DeviceNone;       utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2Joypad()     { snes.config.controller_port2 = SNES::Input::DeviceJoypad;     utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2Multitap()   { snes.config.controller_port2 = SNES::Input::DeviceMultitap;   utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2Mouse()      { snes.config.controller_port2 = SNES::Input::DeviceMouse;      utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2SuperScope() { snes.config.controller_port2 = SNES::Input::DeviceSuperScope; utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2Justifier()  { snes.config.controller_port2 = SNES::Input::DeviceJustifier;  utility.updateControllers(); syncUi(); }
+void MainWindow::setPort2Justifiers() { snes.config.controller_port2 = SNES::Input::DeviceJustifiers; utility.updateControllers(); syncUi(); }
+
+void MainWindow::quit() {
+  application.terminate = true;
+}
+
+void MainWindow::setVideoMode1x()  { config.video.context->multiplier = 1; utility.resizeMainWindow(); syncUi(); }
+void MainWindow::setVideoMode2x()  { config.video.context->multiplier = 2; utility.resizeMainWindow(); syncUi(); }
+void MainWindow::setVideoMode3x()  { config.video.context->multiplier = 3; utility.resizeMainWindow(); syncUi(); }
+void MainWindow::setVideoMode4x()  { config.video.context->multiplier = 4; utility.resizeMainWindow(); syncUi(); }
+void MainWindow::setVideoModeMax() { config.video.context->multiplier = 9; utility.resizeMainWindow(); syncUi(); }
+
+void MainWindow::toggleAspectCorrection() {
+  config.video.context->correctAspectRatio = settings_videoMode_correctAspectRatio->isChecked();
+  utility.resizeMainWindow();
+}
+
+void MainWindow::toggleFullscreen() { config.video.isFullscreen = settings_videoMode_fullscreen->isChecked(); utility.updateFullscreenState(); syncUi(); }
+
+void MainWindow::setVideoNtsc() { config.video.context->region = 0; utility.updateVideoMode(); utility.resizeMainWindow(); syncUi(); }
+void MainWindow::setVideoPal()  { config.video.context->region = 1; utility.updateVideoMode(); utility.resizeMainWindow(); syncUi(); }
+
+void MainWindow::setPointFilter()    { config.video.context->hwFilter = 0; utility.updateHardwareFilter(); syncUi(); }
+void MainWindow::setLinearFilter()   { config.video.context->hwFilter = 1; utility.updateHardwareFilter(); syncUi(); }
+void MainWindow::setNoFilter()       { config.video.context->swFilter = 0; utility.updateSoftwareFilter(); syncUi(); }
+void MainWindow::setScanlineFilter() { config.video.context->swFilter = 1; utility.updateSoftwareFilter(); syncUi(); }
+void MainWindow::setScale2xFilter()  { config.video.context->swFilter = 2; utility.updateSoftwareFilter(); syncUi(); }
+void MainWindow::setHq2xFilter()     { config.video.context->swFilter = 3; utility.updateSoftwareFilter(); syncUi(); }
+void MainWindow::setNtscFilter()     { config.video.context->swFilter = 4; utility.updateSoftwareFilter(); syncUi(); }
+
+void MainWindow::muteAudio() { config.audio.mute = settings_muteAudio->isChecked(); }
+
+void MainWindow::setSpeedSlowest() { config.system.speed = 0; utility.updateEmulationSpeed(); syncUi(); }
+void MainWindow::setSpeedSlow()    { config.system.speed = 1; utility.updateEmulationSpeed(); syncUi(); }
+void MainWindow::setSpeedNormal()  { config.system.speed = 2; utility.updateEmulationSpeed(); syncUi(); }
+void MainWindow::setSpeedFast()    { config.system.speed = 3; utility.updateEmulationSpeed(); syncUi(); }
+void MainWindow::setSpeedFastest() { config.system.speed = 4; utility.updateEmulationSpeed(); syncUi(); }
+
+void MainWindow::syncVideo() { config.video.synchronize = settings_emulationSpeed_syncVideo->isChecked(); utility.updateAvSync(); }
+void MainWindow::syncAudio() { config.audio.synchronize = settings_emulationSpeed_syncAudio->isChecked(); utility.updateAvSync(); }
+
+void MainWindow::showConfigWindow() {
+  utility.showCentered(winSettings->window);
+}
+
+void MainWindow::showDocumentation()  {
+  QFile file(":/documentation.html");
+  if(file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    winHtmlViewer->show("Usage Documentation", file.readAll().constData());
+    file.close();
+  }
+}
+
+void MainWindow::showLicense() {
+  QFile file(":/license.html");
+  if(file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    winHtmlViewer->show("License Agreement", file.readAll().constData());
+    file.close();
+  }
+}
+void MainWindow::showAbout() {
+  utility.showCentered(winAbout->window);
+}
+
+void MainWindow::Window::closeEvent(QCloseEvent*) {
+  winMain->quit();
+}
+
+//============
+//CanvasObject
+//============
+//implement drag-and-drop support:
+//drag cartridge image onto main window canvas area to load
+
+void CanvasObject::dragEnterEvent(QDragEnterEvent *event) {
+  if(event->mimeData()->hasUrls()) {
+    //do not accept multiple files at once
+    if(event->mimeData()->urls().count() == 1) event->acceptProposedAction();
+  }
+}
+
+void CanvasObject::dropEvent(QDropEvent *event) {
+  if(event->mimeData()->hasUrls()) {
+    QList<QUrl> list = event->mimeData()->urls();
+    if(list.count() == 1) utility.loadCartridge(list.at(0).toLocalFile().toUtf8().constData());
+  }
+}
+
+//===========
+//CanvasWidget
+//============
+//custom video render and mouse capture functionality
+
+QPaintEngine* CanvasWidget::paintEngine() const {
+  if(cartridge.loaded()) return 0;
+  return QWidget::paintEngine();
+}
+
+void CanvasWidget::mouseReleaseEvent(QMouseEvent *event) {
+  //acquire exclusive mode access to mouse when video output widget is clicked
+  //(will only acquire if cart is loaded, and mouse / lightgun is in use.)
+  utility.acquireMouse();
+}
+
+void CanvasWidget::paintEvent(QPaintEvent *event) {
+  event->ignore();
+}

tools/bsnes/ui_qt/base/main.hpp

@@ -0,0 +1,129 @@
+class CanvasObject : public QWidget {
+public:
+  void dragEnterEvent(QDragEnterEvent*);
+  void dropEvent(QDropEvent*);
+};
+
+class CanvasWidget : public CanvasObject {
+public:
+  QPaintEngine* paintEngine() const;
+  void mouseReleaseEvent(QMouseEvent*);
+  void paintEvent(QPaintEvent*);
+};
+
+class MainWindow : public QObject {
+  Q_OBJECT
+
+public:
+  struct Window : public QMainWindow {
+    void closeEvent(QCloseEvent*);
+  } *window;
+    QVBoxLayout *layout;
+    QMenu *system;
+      QAction *system_load;
+      QMenu *system_power;
+        QAction *system_power_on;
+        QAction *system_power_off;
+      QAction *system_reset;
+      QMenu *system_port1;
+        QAction *system_port1_none;
+        QAction *system_port1_joypad;
+        QAction *system_port1_multitap;
+        QAction *system_port1_mouse;
+      QMenu *system_port2;
+        QAction *system_port2_none;
+        QAction *system_port2_joypad;
+        QAction *system_port2_multitap;
+        QAction *system_port2_mouse;
+        QAction *system_port2_superscope;
+        QAction *system_port2_justifier;
+        QAction *system_port2_justifiers;
+      QAction *system_exit;
+    QMenu *settings;
+      QMenu *settings_videoMode;
+        QAction *settings_videoMode_1x;
+        QAction *settings_videoMode_2x;
+        QAction *settings_videoMode_3x;
+        QAction *settings_videoMode_4x;
+        QAction *settings_videoMode_max;
+        QAction *settings_videoMode_correctAspectRatio;
+        QAction *settings_videoMode_fullscreen;
+        QAction *settings_videoMode_ntsc;
+        QAction *settings_videoMode_pal;
+      QMenu *settings_videoFilter;
+        QAction *settings_videoFilter_point;
+        QAction *settings_videoFilter_linear;
+        QAction *settings_videoFilter_none;
+        QAction *settings_videoFilter_scanline;
+        QAction *settings_videoFilter_scale2x;
+        QAction *settings_videoFilter_hq2x;
+        QAction *settings_videoFilter_ntsc;
+      QAction *settings_muteAudio;
+      QMenu *settings_emulationSpeed;
+        QAction *settings_emulationSpeed_slowest;
+        QAction *settings_emulationSpeed_slow;
+        QAction *settings_emulationSpeed_normal;
+        QAction *settings_emulationSpeed_fast;
+        QAction *settings_emulationSpeed_fastest;
+        QAction *settings_emulationSpeed_syncVideo;
+        QAction *settings_emulationSpeed_syncAudio;
+      QAction *settings_configuration;
+    QMenu *help;
+      QAction *help_documentation;
+      QAction *help_license;
+      QAction *help_about;
+    //
+    CanvasObject *canvasContainer;
+      QVBoxLayout *canvasLayout;
+        CanvasWidget *canvas;
+    QLabel *systemState;
+
+  void setup();
+  void syncUi();
+
+public slots:
+  void loadCartridge();
+  void powerOn();
+  void powerOff();
+  void reset();
+  void setPort1None();
+  void setPort1Joypad();
+  void setPort1Multitap();
+  void setPort1Mouse();
+  void setPort2None();
+  void setPort2Joypad();
+  void setPort2Multitap();
+  void setPort2Mouse();
+  void setPort2SuperScope();
+  void setPort2Justifier();
+  void setPort2Justifiers();
+  void quit();
+  void setVideoMode1x();
+  void setVideoMode2x();
+  void setVideoMode3x();
+  void setVideoMode4x();
+  void setVideoModeMax();
+  void toggleAspectCorrection();
+  void toggleFullscreen();
+  void setVideoNtsc();
+  void setVideoPal();
+  void setPointFilter();
+  void setLinearFilter();
+  void setNoFilter();
+  void setScanlineFilter();
+  void setScale2xFilter();
+  void setHq2xFilter();
+  void setNtscFilter();
+  void muteAudio();
+  void setSpeedSlowest();
+  void setSpeedSlow();
+  void setSpeedNormal();
+  void setSpeedFast();
+  void setSpeedFastest();
+  void syncVideo();
+  void syncAudio();
+  void showConfigWindow();
+  void showDocumentation();
+  void showLicense();
+  void showAbout();
+} *winMain;

tools/bsnes/ui_qt/config.cpp

@@ -0,0 +1,237 @@
+class Configuration : public configuration {
+public:
+  struct System {
+    string video, audio, input;
+    bool crashedOnLastRun;
+    unsigned speed;
+  } system;
+
+  struct Video {
+    bool isFullscreen;
+    bool synchronize;
+    signed contrastAdjust, brightnessAdjust, gammaAdjust;
+    bool enableGammaRamp;
+    bool enableNtscMergeFields;
+    double ntscAspectRatio, palAspectRatio;
+
+    struct Context {
+      bool correctAspectRatio;
+      unsigned multiplier, region;
+      unsigned hwFilter, swFilter;
+    } *context, windowed, fullscreen;
+  } video;
+
+  struct Audio {
+    bool synchronize;
+    bool mute;
+    unsigned volume, latency, outputFrequency, inputFrequency;
+  } audio;
+
+  struct Input {
+    enum policy_t { FocusPolicyPauseEmulation, FocusPolicyIgnoreInput, FocusPolicyAllowInput };
+    unsigned focusPolicy;
+    bool allowInvalidInput;
+
+    struct Joypad {
+      string up, down, left, right, a, b, x, y, l, r, select, start;
+    } joypad1, joypad2,
+      multitap1a, multitap1b, multitap1c, multitap1d,
+      multitap2a, multitap2b, multitap2c, multitap2d;
+
+    struct Mouse {
+      string x, y, left, right;
+    } mouse1, mouse2;
+
+    struct SuperScope {
+      string x, y, trigger, turbo, cursor, pause;
+    } superscope;
+
+    struct Justifier {
+      string x, y, trigger, start;
+    } justifier1, justifier2;
+
+    struct UiGeneral {
+      string loadCartridge;
+      string pauseEmulation;
+      string resetSystem;
+      string powerCycleSystem;
+      string lowerSpeed;
+      string raiseSpeed;
+      string toggleCheatSystem;
+      string toggleFullscreen;
+      string toggleMenu;
+      string toggleStatus;
+      string exitEmulator;
+    } uiGeneral;
+  } input;
+
+  Configuration() {
+    //========
+    //external
+    //========
+
+    attach(snes.config.controller_port1 = SNES::Input::DeviceJoypad, "snes.controllerPort1");
+    attach(snes.config.controller_port2 = SNES::Input::DeviceJoypad, "snes.controllerPort2");
+    attach(snes.config.expansion_port   = SNES::ExpansionBSX,        "snes.expansionPort");
+    attach(snes.config.region           = SNES::Autodetect,          "snes.region");
+
+    attach(snes.config.file.autodetect_type    = false, "file.autodetectType");
+    attach(snes.config.file.bypass_patch_crc32 = false, "file.bypassPatchCrc32");
+
+    attach(snes.config.path.rom   = "", "path.rom");
+    attach(snes.config.path.save  = "", "path.save");
+    attach(snes.config.path.patch = "", "path.patch");
+    attach(snes.config.path.cheat = "", "path.cheat");
+    attach(snes.config.path.data  = "", "path.data");
+    attach(snes.config.path.bsx   = "", "path.bsx");
+    attach(snes.config.path.st    = "", "path.st");
+
+    attach(snes.config.cpu.version         =        2, "cpu.version", "Valid version(s) are: 1, 2");
+    attach(snes.config.cpu.ntsc_clock_rate = 21477272, "cpu.ntscClockRate");
+    attach(snes.config.cpu.pal_clock_rate  = 21281370, "cpu.palClockRate");
+    attach(snes.config.cpu.alu_mul_delay   =        2, "cpu.aluMulDelay");
+    attach(snes.config.cpu.alu_div_delay   =        2, "cpu.aluDivDelay");
+    attach(snes.config.cpu.wram_init_value =     0x55, "cpu.wramInitValue");
+
+    attach(snes.config.smp.ntsc_clock_rate = 32041 * 768, "smp.ntscClockRate");
+    attach(snes.config.smp.pal_clock_rate  = 32041 * 768, "smp.palClockRate");
+
+    attach(snes.config.ppu1.version = 1, "ppu1.version", "Valid version(s) are: 1");
+    attach(snes.config.ppu2.version = 3, "ppu2.version", "Valid version(s) are: 1, 2, 3");
+
+    //========
+    //internal
+    //========
+
+    attach(system.video = "", "system.video");
+    attach(system.audio = "", "system.audio");
+    attach(system.input = "", "system.input");
+    attach(system.crashedOnLastRun = false, "system.crashedOnLastRun");
+    attach(system.speed = 2, "system.speed");
+
+    video.context = &video.windowed;
+    attach(video.isFullscreen = false, "video.isFullscreen");
+    attach(video.synchronize  = false, "video.synchronize");
+
+    attach(video.contrastAdjust   = 0, "video.contrastAdjust");
+    attach(video.brightnessAdjust = 0, "video.brightnessAdjust");
+    attach(video.gammaAdjust      = 0, "video.gammaAdjust");
+
+    attach(video.enableGammaRamp       =  true, "video.enableGammaRamp");
+    attach(video.enableNtscMergeFields = false, "video.enableNtscMergeFields");
+
+    attach(video.ntscAspectRatio = 54.0 / 47.0, "video.ntscAspectRatio", "NTSC aspect ratio (x / y)");
+    attach(video.palAspectRatio  = 32.0 / 23.0, "video.palAspectRatio",  "PAL aspect ratio (x / y)");
+
+    attach(video.windowed.correctAspectRatio = true, "video.windowed.correctAspectRatio");
+    attach(video.windowed.multiplier         =    2, "video.windowed.multiplier");
+    attach(video.windowed.region             =    0, "video.windowed.region");
+
+    attach(video.windowed.hwFilter = 1, "video.windowed.hwFilter");
+    attach(video.windowed.swFilter = 0, "video.windowed.swFilter");
+
+    attach(video.fullscreen.correctAspectRatio = true, "video.fullscreen.correctAspectRatio");
+    attach(video.fullscreen.multiplier         =    9, "video.fullscreen.multiplier");
+    attach(video.fullscreen.region             =    0, "video.fullscreen.region");
+
+    attach(video.fullscreen.hwFilter = 1, "video.fullscreen.hwFilter");
+    attach(video.fullscreen.swFilter = 0, "video.fullscreen.swFilter");
+
+    attach(audio.synchronize = true,  "audio.synchronize");
+    attach(audio.mute        = false, "audio.mute");
+
+    attach(audio.volume          =   100, "audio.volume");
+    attach(audio.latency         =    80, "audio.latency");
+    attach(audio.outputFrequency = 48000, "audio.outputFrequency");
+    attach(audio.inputFrequency  = 32000, "audio.inputFrequency");
+
+    attach(input.focusPolicy = Input::FocusPolicyPauseEmulation, "input.focusPolicy");
+    attach(input.allowInvalidInput = false, "input.allowInvalidInput", "Allow up+down / left+right combinations; may trigger bugs in some games");
+
+    attach(input.joypad1.up     = "keyboard00.up",     "input.joypad1.up");
+    attach(input.joypad1.down   = "keyboard00.down",   "input.joypad1.down");
+    attach(input.joypad1.left   = "keyboard00.left",   "input.joypad1.left");
+    attach(input.joypad1.right  = "keyboard00.right",  "input.joypad1.right");
+    attach(input.joypad1.a      = "keyboard00.x",      "input.joypad1.a");
+    attach(input.joypad1.b      = "keyboard00.z",      "input.joypad1.b");
+    attach(input.joypad1.x      = "keyboard00.s",      "input.joypad1.x");
+    attach(input.joypad1.y      = "keyboard00.a",      "input.joypad1.y");
+    attach(input.joypad1.l      = "keyboard00.d",      "input.joypad1.l");
+    attach(input.joypad1.r      = "keyboard00.c",      "input.joypad1.r");
+    attach(input.joypad1.select = "keyboard00.rshift", "input.joypad1.select");
+    attach(input.joypad1.start  = "keyboard00.return", "input.joypad1.start");
+
+    //these are all mapped to "none" by default
+    attachJoypad(input.joypad2,    "input.joypad2");
+    attachJoypad(input.multitap1a, "input.multitap1a");
+    attachJoypad(input.multitap1b, "input.multitap1b");
+    attachJoypad(input.multitap1c, "input.multitap1c");
+    attachJoypad(input.multitap1d, "input.multitap1d");
+    attachJoypad(input.multitap2a, "input.multitap2a");
+    attachJoypad(input.multitap2b, "input.multitap2b");
+    attachJoypad(input.multitap2c, "input.multitap2c");
+    attachJoypad(input.multitap2d, "input.multitap2d");
+
+    attach(input.mouse1.x     = "mouse00.x",        "input.mouse1.x");
+    attach(input.mouse1.y     = "mouse00.y",        "input.mouse1.y");
+    attach(input.mouse1.left  = "mouse00.button00", "input.mouse1.left");
+    attach(input.mouse1.right = "mouse00.button02", "input.mouse1.right");
+
+    //more likely a user will only use one mouse at a time, than for a system to have two mice
+    attach(input.mouse2.x     = "mouse00.x",        "input.mouse2.x");
+    attach(input.mouse2.y     = "mouse00.y",        "input.mouse2.y");
+    attach(input.mouse2.left  = "mouse00.button00", "input.mouse2.left");
+    attach(input.mouse2.right = "mouse00.button02", "input.mouse2.right");
+
+    //unlikely a user will have a five-button mouse for turbo / pause mapping
+    attach(input.superscope.x       = "mouse00.x",        "input.superscope.x");
+    attach(input.superscope.y       = "mouse00.y",        "input.superscope.y");
+    attach(input.superscope.trigger = "mouse00.button00", "input.superscope.trigger");
+    attach(input.superscope.cursor  = "mouse00.button02", "input.superscope.cursor");
+    attach(input.superscope.turbo   = "keyboard00.t",     "input.superscope.turbo");
+    attach(input.superscope.pause   = "keyboard00.p",     "input.superscope.pause");
+
+    attach(input.justifier1.x       = "mouse00.x",        "input.justifier1.x");
+    attach(input.justifier1.y       = "mouse00.y",        "input.justifier1.y");
+    attach(input.justifier1.trigger = "mouse00.button00", "input.justifier1.trigger");
+    attach(input.justifier1.start   = "mouse00.button02", "input.jusitifer1.start");
+
+    attach(input.justifier2.x       = "mouse01.x",        "input.justifier2.x");
+    attach(input.justifier2.y       = "mouse01.y",        "input.justifier2.y");
+    attach(input.justifier2.trigger = "mouse01.button00", "input.justifier2.trigger");
+    attach(input.justifier2.start   = "mouse01.button02", "input.justifier2.start");
+
+    attach(input.uiGeneral.loadCartridge     = "none",                "input.uiGeneral.loadCartridge");
+    attach(input.uiGeneral.pauseEmulation    = "keyboard00.pause",    "input.uiGeneral.pauseEmulation");
+    attach(input.uiGeneral.resetSystem       = "none",                "input.uiGeneral.resetSystem");
+    attach(input.uiGeneral.powerCycleSystem  = "none",                "input.uiGeneral.powerCycleSystem");
+    attach(input.uiGeneral.lowerSpeed        = "keyboard00.divide",   "input.uiGeneral.lowerSpeed");
+    attach(input.uiGeneral.raiseSpeed        = "keyboard00.multiply", "input.uiGeneral.raiseSpeed");
+    attach(input.uiGeneral.toggleCheatSystem = "none",                "input.uiGeneral.toggleCheatSystem");
+    attach(input.uiGeneral.toggleFullscreen  = "keyboard00.f11",      "input.uiGeneral.toggleFullscreen");
+    attach(input.uiGeneral.toggleMenu        = "keyboard00.escape",   "input.uiGeneral.toggleMenu");
+    attach(input.uiGeneral.toggleStatus      = "keyboard00.escape",   "input.uiGeneral.toggleStatus");
+    attach(input.uiGeneral.exitEmulator      = "none",                "input.uiGeneral.exitEmulator");
+  }
+
+  void attachJoypad(Input::Joypad &joypad, const char *name) {
+    attach(joypad.up     = "none", string() << name << ".up");
+    attach(joypad.down   = "none", string() << name << ".down");
+    attach(joypad.left   = "none", string() << name << ".left");
+    attach(joypad.right  = "none", string() << name << ".right");
+    attach(joypad.a      = "none", string() << name << ".a");
+    attach(joypad.b      = "none", string() << name << ".b");
+    attach(joypad.x      = "none", string() << name << ".x");
+    attach(joypad.y      = "none", string() << name << ".y");
+    attach(joypad.l      = "none", string() << name << ".l");
+    attach(joypad.r      = "none", string() << name << ".r");
+    attach(joypad.select = "none", string() << name << ".select");
+    attach(joypad.start  = "none", string() << name << ".start");
+  }
+
+  bool load(const char *filename) {
+    if(configuration::load(filename) == false) return false;
+    video.context = (video.isFullscreen == false) ? &video.windowed : &video.fullscreen;
+    return true;
+  }
+} config;

tools/bsnes/ui_qt/input/device.cpp

@@ -0,0 +1,261 @@
+//===========
+//InputDevice
+//===========
+
+InputDevice::InputDevice(SNES::Input::DeviceID i, bool p, const char *n) : InputGroup(n), id(i), port(p) {
+}
+
+//======
+//Joypad
+//======
+
+int16_t Joypad::state(unsigned index) const {
+  if(config.input.allowInvalidInput == false) {
+    //SNES D-pads have central pivot point, making up+down or left+right combinations impossible.
+    //some software programs rely on this, and will crash if these combinations are allowed.
+    if(index == SNES::Input::JoypadDown  && up.state  ) return 0;
+    if(index == SNES::Input::JoypadRight && left.state) return 0;
+  }
+
+  switch(index) {
+    case SNES::Input::JoypadUp:     return up.state;
+    case SNES::Input::JoypadDown:   return down.state;
+    case SNES::Input::JoypadLeft:   return left.state;
+    case SNES::Input::JoypadRight:  return right.state;
+    case SNES::Input::JoypadA:      return a.state;
+    case SNES::Input::JoypadB:      return b.state;
+    case SNES::Input::JoypadX:      return x.state;
+    case SNES::Input::JoypadY:      return y.state;
+    case SNES::Input::JoypadL:      return l.state;
+    case SNES::Input::JoypadR:      return r.state;
+    case SNES::Input::JoypadSelect: return select.state;
+    case SNES::Input::JoypadStart:  return start.state;
+  }
+
+  return 0;
+}
+
+Joypad::Joypad(SNES::Input::DeviceID id, bool port, const char *name,
+string &up_t, string &down_t, string &left_t, string &right_t, string &a_t, string &b_t,
+string &x_t, string &y_t, string &l_t, string &r_t, string &select_t, string &start_t
+) :
+InputDevice(id, port, name),
+up    (InputObject::Button, "Up",     up_t),
+down  (InputObject::Button, "Down",   down_t),
+left  (InputObject::Button, "Left",   left_t),
+right (InputObject::Button, "Right",  right_t),
+a     (InputObject::Button, "A",      a_t),
+b     (InputObject::Button, "B",      b_t),
+x     (InputObject::Button, "X",      x_t),
+y     (InputObject::Button, "Y",      y_t),
+l     (InputObject::Button, "L",      l_t),
+r     (InputObject::Button, "R",      r_t),
+select(InputObject::Button, "Select", select_t),
+start (InputObject::Button, "Start",  start_t) {
+  attach(up); attach(down); attach(left); attach(right); attach(a); attach(b);
+  attach(x); attach(y); attach(l); attach(r); attach(select); attach(start);
+}
+
+//=====
+//Mouse
+//=====
+
+int16_t Mouse::state(unsigned index) const {
+  switch(index) {
+    case SNES::Input::MouseX:     return x.state;
+    case SNES::Input::MouseY:     return y.state;
+    case SNES::Input::MouseLeft:  return left.state;
+    case SNES::Input::MouseRight: return right.state;
+  }
+
+  return 0;
+}
+
+Mouse::Mouse(SNES::Input::DeviceID id, bool port, const char *name,
+string &x_t, string &y_t, string &left_t, string &right_t
+) :
+InputDevice(id, port, name),
+x    (InputObject::Axis,   "X-axis",       x_t),
+y    (InputObject::Axis,   "Y-axis",       y_t),
+left (InputObject::Button, "Left button",  left_t),
+right(InputObject::Button, "Right button", right_t) {
+  attach(x); attach(y); attach(left); attach(right);
+}
+
+//==========
+//SuperScope
+//==========
+
+int16_t SuperScope::state(unsigned index) const {
+  switch(index) {
+    case SNES::Input::SuperScopeX:       return x.state;
+    case SNES::Input::SuperScopeY:       return y.state;
+    case SNES::Input::SuperScopeTrigger: return trigger.state;
+    case SNES::Input::SuperScopeCursor:  return cursor.state;
+    case SNES::Input::SuperScopeTurbo:   return turbo.state;
+    case SNES::Input::SuperScopePause:   return pause.state;
+  }
+
+  return 0;
+}
+
+SuperScope::SuperScope(SNES::Input::DeviceID id, bool port, const char *name,
+string &x_t, string &y_t, string &trigger_t, string &cursor_t, string &turbo_t, string &pause_t
+) :
+InputDevice(id, port, name),
+x      (InputObject::Axis,   "X-axis",  x_t),
+y      (InputObject::Axis,   "Y-axis",  y_t),
+trigger(InputObject::Button, "Trigger", trigger_t),
+cursor (InputObject::Button, "Cursor",  cursor_t),
+turbo  (InputObject::Button, "Turbo",   turbo_t),
+pause  (InputObject::Button, "Pause",   pause_t) {
+  attach(x); attach(y); attach(trigger); attach(cursor); attach(turbo); attach(pause);
+}
+
+//=========
+//Justifier
+//=========
+
+int16_t Justifier::state(unsigned index) const {
+  switch(index) {
+    case SNES::Input::JustifierX:       return x.state;
+    case SNES::Input::JustifierY:       return y.state;
+    case SNES::Input::JustifierTrigger: return trigger.state;
+    case SNES::Input::JustifierStart:   return start.state;
+  }
+
+  return 0;
+}
+
+Justifier::Justifier(SNES::Input::DeviceID id, bool port, const char *name,
+string &x_t, string &y_t, string &trigger_t, string &start_t
+) :
+InputDevice(id, port, name),
+x      (InputObject::Axis,   "X-axis",  x_t),
+y      (InputObject::Axis,   "Y-axis",  y_t),
+trigger(InputObject::Button, "Trigger", trigger_t),
+start  (InputObject::Button, "Start",   start_t) {
+  attach(x); attach(y); attach(trigger); attach(start);
+}
+
+//===============
+//InputDevicePool
+//===============
+
+void InputDevicePool::attach(InputDevice &device) {
+  list.add(&device);
+}
+
+void InputDevicePool::bind() {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->bind();
+}
+
+void InputDevicePool::clear() {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->clear();
+}
+
+void InputDevicePool::poll(const int16_t *table) {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->poll(table);
+}
+
+InputDevice* InputDevicePool::find(SNES::Input::DeviceID id) {
+  for(unsigned i = 0; i < list.size(); i++) {
+    if(list[i]->id == id) return list[i];
+  }
+
+  return 0;
+}
+
+InputDevicePool::InputDevicePool() : list(*this) {
+}
+
+//
+
+Joypad joypad1(SNES::Input::DeviceIDJoypad1, InputDevice::Port1, "Joypad",
+config.input.joypad1.up, config.input.joypad1.down, config.input.joypad1.left,   config.input.joypad1.right,
+config.input.joypad1.a,  config.input.joypad1.b,    config.input.joypad1.x,      config.input.joypad1.y,
+config.input.joypad1.l,  config.input.joypad1.r,    config.input.joypad1.select, config.input.joypad1.start);
+
+Joypad joypad2(SNES::Input::DeviceIDJoypad2, InputDevice::Port2, "Joypad",
+config.input.joypad2.up, config.input.joypad2.down, config.input.joypad2.left,   config.input.joypad2.right,
+config.input.joypad2.a,  config.input.joypad2.b,    config.input.joypad2.x,      config.input.joypad2.y,
+config.input.joypad2.l,  config.input.joypad2.r,    config.input.joypad2.select, config.input.joypad2.start);
+
+Joypad multitap1a(SNES::Input::DeviceIDMultitap1A, InputDevice::Port1, "Multitap - Port 1",
+config.input.multitap1a.up, config.input.multitap1a.down, config.input.multitap1a.left,   config.input.multitap1a.right,
+config.input.multitap1a.a,  config.input.multitap1a.b,    config.input.multitap1a.x,      config.input.multitap1a.y,
+config.input.multitap1a.l,  config.input.multitap1a.r,    config.input.multitap1a.select, config.input.multitap1a.start);
+
+Joypad multitap1b(SNES::Input::DeviceIDMultitap1B, InputDevice::Port1, "Multitap - Port 2",
+config.input.multitap1b.up, config.input.multitap1b.down, config.input.multitap1b.left,   config.input.multitap1b.right,
+config.input.multitap1b.a,  config.input.multitap1b.b,    config.input.multitap1b.x,      config.input.multitap1b.y,
+config.input.multitap1b.l,  config.input.multitap1b.r,    config.input.multitap1b.select, config.input.multitap1b.start);
+
+Joypad multitap1c(SNES::Input::DeviceIDMultitap1C, InputDevice::Port1, "Multitap - Port 3",
+config.input.multitap1c.up, config.input.multitap1c.down, config.input.multitap1c.left,   config.input.multitap1c.right,
+config.input.multitap1c.a,  config.input.multitap1c.b,    config.input.multitap1c.x,      config.input.multitap1c.y,
+config.input.multitap1c.l,  config.input.multitap1c.r,    config.input.multitap1c.select, config.input.multitap1c.start);
+
+Joypad multitap1d(SNES::Input::DeviceIDMultitap1D, InputDevice::Port1, "Multitap - Port 4",
+config.input.multitap1d.up, config.input.multitap1d.down, config.input.multitap1d.left,   config.input.multitap1d.right,
+config.input.multitap1d.a,  config.input.multitap1d.b,    config.input.multitap1d.x,      config.input.multitap1d.y,
+config.input.multitap1d.l,  config.input.multitap1d.r,    config.input.multitap1d.select, config.input.multitap1d.start);
+
+Joypad multitap2a(SNES::Input::DeviceIDMultitap2A, InputDevice::Port2, "Multitap - Port 1",
+config.input.multitap2a.up, config.input.multitap2a.down, config.input.multitap2a.left,   config.input.multitap2a.right,
+config.input.multitap2a.a,  config.input.multitap2a.b,    config.input.multitap2a.x,      config.input.multitap2a.y,
+config.input.multitap2a.l,  config.input.multitap2a.r,    config.input.multitap2a.select, config.input.multitap2a.start);
+
+Joypad multitap2b(SNES::Input::DeviceIDMultitap2B, InputDevice::Port2, "Multitap - Port 2",
+config.input.multitap2b.up, config.input.multitap2b.down, config.input.multitap2b.left,   config.input.multitap2b.right,
+config.input.multitap2b.a,  config.input.multitap2b.b,    config.input.multitap2b.x,      config.input.multitap2b.y,
+config.input.multitap2b.l,  config.input.multitap2b.r,    config.input.multitap2b.select, config.input.multitap2b.start);
+
+Joypad multitap2c(SNES::Input::DeviceIDMultitap2C, InputDevice::Port2, "Multitap - Port 3",
+config.input.multitap2c.up, config.input.multitap2c.down, config.input.multitap2c.left,   config.input.multitap2c.right,
+config.input.multitap2c.a,  config.input.multitap2c.b,    config.input.multitap2c.x,      config.input.multitap2c.y,
+config.input.multitap2c.l,  config.input.multitap2c.r,    config.input.multitap2c.select, config.input.multitap2c.start);
+
+Joypad multitap2d(SNES::Input::DeviceIDMultitap2D, InputDevice::Port2, "Multitap - Port 4",
+config.input.multitap2d.up, config.input.multitap2d.down, config.input.multitap2d.left,   config.input.multitap2d.right,
+config.input.multitap2d.a,  config.input.multitap2d.b,    config.input.multitap2d.x,      config.input.multitap2d.y,
+config.input.multitap2d.l,  config.input.multitap2d.r,    config.input.multitap2d.select, config.input.multitap2d.start);
+
+Mouse mouse1(SNES::Input::DeviceIDMouse1, InputDevice::Port1, "Mouse",
+config.input.mouse1.x, config.input.mouse1.y, config.input.mouse1.left, config.input.mouse1.right);
+
+Mouse mouse2(SNES::Input::DeviceIDMouse2, InputDevice::Port2, "Mouse",
+config.input.mouse2.x, config.input.mouse2.y, config.input.mouse2.left, config.input.mouse2.right);
+
+SuperScope superscope(SNES::Input::DeviceIDSuperScope, InputDevice::Port2, "Super Scope",
+config.input.superscope.x,       config.input.superscope.y,
+config.input.superscope.trigger, config.input.superscope.cursor,
+config.input.superscope.turbo,   config.input.superscope.pause);
+
+Justifier justifier1(SNES::Input::DeviceIDJustifier1, InputDevice::Port2, "Justifier 1",
+config.input.justifier1.x,       config.input.justifier1.y,
+config.input.justifier1.trigger, config.input.justifier1.start);
+
+Justifier justifier2(SNES::Input::DeviceIDJustifier2, InputDevice::Port2, "Justifier 2",
+config.input.justifier2.x,       config.input.justifier2.y,
+config.input.justifier2.trigger, config.input.justifier2.start);
+
+InputSnesDevicePool inputPool;
+
+InputSnesDevicePool::InputSnesDevicePool() {
+  attach(joypad1);
+  attach(joypad2);
+  attach(multitap1a);
+  attach(multitap1b);
+  attach(multitap1c);
+  attach(multitap1d);
+  attach(multitap2a);
+  attach(multitap2b);
+  attach(multitap2c);
+  attach(multitap2d);
+  attach(mouse1);
+  attach(mouse2);
+  attach(superscope);
+  attach(justifier1);
+  attach(justifier2);
+}

tools/bsnes/ui_qt/input/device.hpp

@@ -0,0 +1,73 @@
+struct InputDevice : InputGroup {
+  SNES::Input::DeviceID id;
+  enum Port { Port1, Port2 };
+  const bool port;
+
+  InputDevice(SNES::Input::DeviceID i, bool p, const char *n);
+};
+
+struct Joypad : InputDevice {
+  InputObject up, down, left, right, a, b, x, y, l, r, select, start;
+
+  int16_t state(unsigned index) const;
+  Joypad(SNES::Input::DeviceID id, bool port, const char *name,
+  string&, string&, string&, string&, string&, string&,
+  string&, string&, string&, string&, string&, string&);
+};
+
+struct Mouse : InputDevice {
+  InputObject x, y, left, right;
+
+  int16_t state(unsigned index) const;
+  Mouse(SNES::Input::DeviceID id, bool port, const char *name,
+  string&, string&, string&, string&);
+};
+
+struct SuperScope : InputDevice {
+  InputObject x, y, trigger, cursor, turbo, pause;
+
+  int16_t state(unsigned index) const;
+  SuperScope(SNES::Input::DeviceID id, bool port, const char *name,
+  string&, string&, string&, string&, string&, string&);
+};
+
+struct Justifier : InputDevice {
+  InputObject x, y, trigger, start;
+
+  int16_t state(unsigned index) const;
+  Justifier(SNES::Input::DeviceID id, bool port, const char *name,
+  string&, string&, string&, string&);
+};
+
+struct InputDevicePool : public array<InputDevice*> {
+  void attach(InputDevice &device);
+  void bind();
+  void clear();
+  void poll(const int16_t *table);
+  InputDevice* find(SNES::Input::DeviceID id);
+  InputDevicePool();
+
+private:
+  array<InputDevice*> &list;
+};
+
+struct InputSnesDevicePool : public InputDevicePool {
+  InputSnesDevicePool();
+};
+
+extern Joypad joypad1;
+extern Joypad joypad2;
+extern Joypad multitap1a;
+extern Joypad multitap1b;
+extern Joypad multitap1c;
+extern Joypad multitap1d;
+extern Joypad multitap2a;
+extern Joypad multitap2b;
+extern Joypad multitap2c;
+extern Joypad multitap2d;
+extern Mouse mouse1;
+extern Mouse mouse2;
+extern SuperScope superscope;
+extern Justifier justifier1;
+extern Justifier justifier2;
+extern InputSnesDevicePool inputPool;

tools/bsnes/ui_qt/input/input.cpp

@@ -0,0 +1,269 @@
+#include "device.cpp"
+#include "userinterface.cpp"
+
+//=========
+//InputCode
+//=========
+
+InputCode::type_t InputCode::type(uint16_t code) {
+  for(unsigned i = 0; i < keyboard<>::count; i++) {
+    unsigned index = keyboard<>::index(i, keyboard<>::none);
+    if(code >= index && code < index + keyboard<>::length) return KeyboardButton;
+  }
+
+  for(unsigned i = 0; i < mouse<>::count; i++) {
+    unsigned index = mouse<>::index(i, mouse<>::none);
+    if(code == index + mouse<>::x) return MouseAxis;
+    if(code == index + mouse<>::y) return MouseAxis;
+    if(code == index + mouse<>::z) return MouseAxis;
+
+    index = mouse<>::index(i, mouse<>::button);
+    if(code >= index && code < index + mouse<>::buttons) return MouseButton;
+  }
+
+  for(unsigned i = 0; i < joypad<>::count; i++) {
+    unsigned index;
+
+    index = joypad<>::index(i, joypad<>::hat);
+    if(code >= index && code < index + joypad<>::hats) return JoypadHat;
+
+    index = joypad<>::index(i, joypad<>::axis);
+    if(code >= index && code < index + joypad<>::axes) return JoypadAxis;
+
+    index = joypad<>::index(i, joypad<>::button);
+    if(code >= index && code < index + joypad<>::buttons) return JoypadButton;
+  }
+
+  return Unknown;
+}
+
+InputCode::axistype_t InputCode::axisType(uint16_t code) {
+  for(unsigned i = 0; i < joypad<>::count; i++) {
+    unsigned index = joypad<>::index(i, joypad<>::axis);
+    if(code >= index && code < index + joypad<>::axes) {
+      return (InputCode::axistype_t)inputManager.axisType(i, code - index);
+    }
+  }
+  return InvalidAxis;
+}
+
+//finds what mouse# is associated with code, returns -1 if not a mouse code
+int InputCode::mouseNumber(uint16_t code) {
+  for(unsigned i = 0; i < mouse<>::count; i++) {
+    unsigned index = mouse<>::index(i, mouse<>::none);
+    if(code >= index && code < index + mouse<>::length) return i;
+  }
+  return -1;
+}
+
+//finds what joypad# is associated with code, returns -1 if not a joypad code
+int InputCode::joypadNumber(uint16_t code) {
+  for(unsigned i = 0; i < joypad<>::count; i++) {
+    unsigned index = joypad<>::index(i, joypad<>::none);
+    if(code >= index && code < index + joypad<>::length) return i;
+  }
+  return -1;
+}
+
+//============
+//InputManager
+//============
+
+void InputManager::bind() {
+  inputPool.bind();
+  inputUiPool.bind();
+}
+
+void InputManager::poll() {
+  if(config.input.focusPolicy == Configuration::Input::FocusPolicyIgnoreInput
+  && winMain->window->isActiveWindow() == false) {
+    inputPool.clear();
+  } else {
+    inputPool.poll(stateTable[activeState]);
+  }
+}
+
+void InputManager::clear() {
+  inputPool.clear();
+}
+
+void InputManager::flush() {
+  for(unsigned i = 0; i < nall::input_limit; i++) {
+    stateTable[0][i] = 0;
+    stateTable[1][i] = 0;
+  }
+}
+
+int16_t InputManager::state(uint16_t code) const {
+  return stateTable[ activeState][code];
+}
+
+int16_t InputManager::lastState(uint16_t code) const {
+  return stateTable[!activeState][code];
+}
+
+int16_t InputManager::getStatus(unsigned deviceid, unsigned id) const {
+  InputDevice *device = inputPool.find((SNES::Input::DeviceID)deviceid);
+  if(device) return device->state(id);
+  return 0;
+}
+
+void InputManager::refresh() {
+  bool last = activeState;
+  activeState = !activeState;
+  bool next = activeState;
+
+  input.poll(stateTable[next]);
+  for(unsigned i = 0; i < nall::input_limit; i++) {
+    //alert via callback whenever input state changes for any ID ...
+    if(onInput && stateTable[last][i] != stateTable[next][i]) onInput(i);
+  }
+}
+
+void InputManager::calibrate(unsigned joy) {
+  unsigned index = joypad<>::index(joy, joypad<>::none);
+
+  for(unsigned axis = 0; axis < joypad<>::axes; axis++) {
+    int16_t value = state(index + joypad<>::axis + axis);
+    pad[joy].axis[axis] = (value >= -16384 && value <= +16384) ? InputCode::Stick : InputCode::Trigger;
+  }
+
+  pad[joy].calibrated = true;
+}
+
+bool InputManager::calibrated(unsigned joy) const {
+  return pad[joy].calibrated;
+}
+
+InputCode::axistype_t InputManager::axisType(unsigned joy, unsigned axis) const {
+  return pad[joy].axis[axis];
+}
+
+InputManager::InputManager() {
+  activeState = 0;
+  flush();
+
+  for(unsigned i = 0; i < joypad<>::count; i++) {
+    pad[i].calibrated = false;
+    for(unsigned n = 0; n < joypad<>::axes; n++) pad[i].axis[n] = InputCode::InvalidAxis;
+  }
+}
+
+//===========
+//InputObject
+//===========
+
+void InputObject::bind() {
+  lstring part;
+  part.split("::", id);
+
+  code = nall::input_find((const char*)part[0]);
+  codetype = InputCode::type(code);
+
+  modifier = None;
+  if(part.size() > 1) {
+    if(part[1] == "up"     ) modifier = Up;
+    if(part[1] == "down"   ) modifier = Down;
+    if(part[1] == "left"   ) modifier = Left;
+    if(part[1] == "right"  ) modifier = Right;
+    if(part[1] == "lo"     ) modifier = Lo;
+    if(part[1] == "hi"     ) modifier = Hi;
+    if(part[1] == "trigger") modifier = Trigger;
+  }
+
+  if(code == nall::input_none) id = "none";
+}
+
+void InputObject::bind(uint16_t newCode) {
+  code = newCode;
+  codetype = InputCode::type(code);
+
+  id = nall::input_find(newCode);
+  modifier = None;
+
+  if(type == Button && codetype == InputCode::JoypadHat) {
+    switch(inputManager.state(code)) {
+      case joypad<>::hat_up:    id << "::up";    modifier = Up;    break;
+      case joypad<>::hat_down:  id << "::down";  modifier = Down;  break;
+      case joypad<>::hat_left:  id << "::left";  modifier = Left;  break;
+      case joypad<>::hat_right: id << "::right"; modifier = Right; break;
+    }
+  } else if(type == Button && codetype == InputCode::JoypadAxis) {
+    InputCode::axistype_t type = InputCode::axisType(code);
+    int16_t state = inputManager.state(code);
+
+    if(type == InputCode::Stick) {
+      if(state < 0) {
+        id << "::lo";
+        modifier = Lo;
+      } else {
+        id << "::hi";
+        modifier = Hi;
+      }
+    } else if(type == InputCode::Trigger) {
+      id << "::trigger";
+      modifier = Trigger;
+    }
+  }
+}
+
+void InputObject::poll(int16_t newState) {
+  if(type == Button && codetype == InputCode::JoypadHat) {
+    //map 4-way hat input to button state
+    state = (modifier == Up    && (newState & joypad<>::hat_up   ))
+         || (modifier == Down  && (newState & joypad<>::hat_down ))
+         || (modifier == Left  && (newState & joypad<>::hat_left ))
+         || (modifier == Right && (newState & joypad<>::hat_right));
+  } else if(type == Button && codetype == InputCode::JoypadAxis) {
+    //convert analog input to button state
+    state = (modifier == Lo && newState < -16384)
+         || (modifier == Hi && newState > +16384)
+         || (modifier == Trigger && newState < 0);
+  } else if(codetype == InputCode::MouseAxis && !input.acquired()) {
+    //mouse must be acquired (locked to window) to move axes
+    state = 0;
+  } else if(0 && codetype == InputCode::MouseButton && !input.acquired()) {
+    //same for buttons
+    //note: disabled for now ... requiring exclusive access makes it much more difficult
+    //to utilize mouse buttons for eg SNES joypad input.
+    state = 0;
+  } else if(codetype == InputCode::JoypadAxis) {
+    //joypad axis range = -32768 to +32767, scale to -8 to +7 to roughly match mouse delta
+    //todo: scale mouse up instead of joypad down? (would require mouse DPI / resolution)
+    state = newState / 4096;
+  } else {
+    state = newState;
+  }
+}
+
+InputObject::InputObject(InputObject::type_t t, const char *n, string &s) : parent(0), type(t), name(n), id(s) {
+}
+
+//==========
+//InputGroup
+//==========
+
+void InputGroup::attach(InputObject &object) {
+  list.add(&object);
+  object.parent = this;
+}
+
+void InputGroup::bind() {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->bind();
+}
+
+void InputGroup::clear() {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->state = 0;
+}
+
+void InputGroup::poll(const int16_t *table) {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->poll(table[list[i]->code]);
+}
+
+int16_t InputGroup::state(unsigned index) const {
+  if(index < list.size()) return list[index]->state;
+  return 0;
+}
+
+InputGroup::InputGroup(const char *n) : list(*this), name(n) {
+}

tools/bsnes/ui_qt/input/input.hpp

@@ -0,0 +1,88 @@
+struct InputCode {
+  enum type_t {
+    KeyboardButton,
+    MouseAxis,
+    MouseButton,
+    JoypadHat,
+    JoypadAxis,
+    JoypadButton,
+    Unknown,
+  };
+  enum axistype_t {
+    Stick,        //bi-directional, centered analog stick (min = -32768, inactive = 0, max = +32767)
+    Trigger,      //uni-directional, pressure-sensitive analog trigger button (min = -32768, inactive = max = +32767)
+    InvalidAxis,  //not a joypad axis code, or said joypad is not calibrated
+  };
+  static type_t type(uint16_t code);
+  static axistype_t axisType(uint16_t code);
+  static int mouseNumber(uint16_t code);
+  static int joypadNumber(uint16_t code);
+};
+
+class InputManager {
+public:
+  void bind();
+  void poll();
+  void clear();
+  void flush();
+
+  int16_t state(uint16_t code) const;
+  int16_t lastState(uint16_t code) const;
+  int16_t getStatus(unsigned deviceid, unsigned id) const;
+
+  void refresh();
+  void calibrate(unsigned joypad);
+  bool calibrated(unsigned joypad) const;
+  InputCode::axistype_t axisType(unsigned joypad, unsigned axis) const;
+  function<void (uint16_t)> onInput;
+
+  InputManager();
+
+private:
+  bool activeState;
+  int16_t stateTable[2][nall::input_limit];
+
+  //joypad axis calibration data
+  struct Pad {
+    bool calibrated;
+    InputCode::axistype_t axis[joypad<>::axes];
+  } pad[joypad<>::count];
+} inputManager;
+
+struct InputGroup;
+
+struct InputObject {
+  InputGroup *parent;
+  enum type_t { Button, Axis };
+  enum modifier_t { None, Up, Down, Left, Right, Lo, Hi, Trigger };
+
+  type_t type;                 //type of input this object is mapped to
+  const char *name;            //plain-text name ("Up", "Down", ... "Start")
+  string &id;                  //config-item reference ("joypad1.start") name ("joypad00.button00")
+  uint16_t code;               //nall::input code ID
+  InputCode::type_t codetype;  //hardware button / axis type
+  modifier_t modifier;         //hardware specialization (joypad-axis "::lo", "::hi", etc)
+  int16_t state;               //code state as of last inputManager.poll()
+
+  void bind();
+  void bind(uint16_t code);
+  void poll(int16_t state);
+  InputObject(type_t t, const char *n, string &s);
+};
+
+struct InputGroup : public array<InputObject*> {
+  const char *name;
+
+  void attach(InputObject &object);
+  void bind();
+  void clear();
+  void poll(const int16_t *table);
+  virtual int16_t state(unsigned index) const;
+  InputGroup(const char *n);
+
+private:
+  array<InputObject*> &list;
+};
+
+#include "device.hpp"
+#include "userinterface.hpp"

tools/bsnes/ui_qt/input/userinterface.cpp

@@ -0,0 +1,56 @@
+//==============
+//InputGroupPool
+//==============
+
+void InputGroupPool::attach(InputGroup &group) {
+  list.add(&group);
+}
+
+void InputGroupPool::bind() {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->bind();
+}
+
+void InputGroupPool::clear() {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->clear();
+}
+
+void InputGroupPool::poll(const int16_t *table) {
+  for(unsigned i = 0; i < list.size(); i++) list[i]->poll(table);
+}
+
+InputGroupPool::InputGroupPool() : list(*this) {
+}
+
+//
+
+InputUiGeneral inputUiGeneral;
+InputUiPool inputUiPool;
+
+InputUiGeneral::InputUiGeneral() : InputGroup("General"),
+loadCartridge(InputObject::Button, "Load cartridge", config.input.uiGeneral.loadCartridge),
+pauseEmulation(InputObject::Button, "Pause emulation", config.input.uiGeneral.pauseEmulation),
+resetSystem(InputObject::Button, "Reset system", config.input.uiGeneral.resetSystem),
+powerCycleSystem(InputObject::Button, "Power cycle system", config.input.uiGeneral.powerCycleSystem),
+lowerSpeed(InputObject::Button, "Decrease emulation speed", config.input.uiGeneral.lowerSpeed),
+raiseSpeed(InputObject::Button, "Increase emulation speed", config.input.uiGeneral.raiseSpeed),
+toggleCheatSystem(InputObject::Button, "Toggle cheat system on or off", config.input.uiGeneral.toggleCheatSystem),
+toggleFullscreen(InputObject::Button, "Toggle fullscreen mode", config.input.uiGeneral.toggleFullscreen),
+toggleMenu(InputObject::Button, "Toggle menubar", config.input.uiGeneral.toggleMenu),
+toggleStatus(InputObject::Button, "Toggle statusbar", config.input.uiGeneral.toggleStatus),
+exitEmulator(InputObject::Button, "Exit emulator", config.input.uiGeneral.exitEmulator) {
+  attach(loadCartridge);
+  attach(pauseEmulation);
+  attach(resetSystem);
+  attach(powerCycleSystem);
+  attach(lowerSpeed);
+  attach(raiseSpeed);
+  attach(toggleCheatSystem);
+  attach(toggleFullscreen);
+  attach(toggleMenu);
+  attach(toggleStatus);
+  attach(exitEmulator);
+}
+
+InputUiPool::InputUiPool() {
+  attach(inputUiGeneral);
+}

tools/bsnes/ui_qt/input/userinterface.hpp

@@ -0,0 +1,33 @@
+struct InputUiGeneral : public InputGroup {
+  InputObject loadCartridge;
+  InputObject pauseEmulation;
+  InputObject resetSystem;
+  InputObject powerCycleSystem;
+  InputObject lowerSpeed;
+  InputObject raiseSpeed;
+  InputObject toggleCheatSystem;
+  InputObject toggleFullscreen;
+  InputObject toggleMenu;
+  InputObject toggleStatus;
+  InputObject exitEmulator;
+
+  InputUiGeneral();
+};
+
+struct InputGroupPool : public array<InputGroup*> {
+  void attach(InputGroup &group);
+  void bind();
+  void clear();
+  void poll(const int16_t *table);
+  InputGroupPool();
+
+private:
+  array<InputGroup*> &list;
+};
+
+struct InputUiPool : public InputGroupPool {
+  InputUiPool();
+};
+
+extern InputUiGeneral inputUiGeneral;
+extern InputUiPool inputUiPool;

tools/bsnes/ui_qt/interface.cpp

@@ -0,0 +1,31 @@
+SNESInterface snesinterface;
+
+void SNESInterface::video_refresh(uint16_t *data, unsigned pitch, unsigned *line, unsigned width, unsigned height) {
+  uint32_t *output;
+  unsigned outpitch;
+  if(video.lock(output, outpitch) == true) {
+    unsigned outwidth, outheight;
+    libfilter::filter.render(output, outpitch, outwidth, outheight, data, pitch, line, width, height);
+    video.unlock();
+    video.refresh(outwidth, outheight);
+  }
+}
+
+void SNESInterface::audio_sample(uint16_t left, uint16_t right) {
+  if(config.audio.mute) left = right = 0;
+  audio.sample(left, right);
+}
+
+void SNESInterface::input_poll() {
+  inputManager.poll();
+}
+
+int16_t SNESInterface::input_poll(unsigned deviceid, unsigned id) {
+  return inputManager.getStatus(deviceid, id);
+}
+
+void SNESInterface::init() {
+}
+
+void SNESInterface::term() {
+}

tools/bsnes/ui_qt/main.cpp

@@ -0,0 +1,162 @@
+#include "main.hpp"
+#include "resource/resource.rcc"
+
+//nall::string <> QString interface: allows string streaming; automatically converts to UTF-16
+class utf8 : public nall::string {
+public:
+  template<typename T> utf8& operator<<(T t) { string::operator<<(t); return *this; }
+  operator const QString() const { return QString::fromUtf8(*this); }
+};
+
+#include "platform.cpp"
+#include "config.cpp"
+#include "interface.cpp"
+#include "ui.cpp"
+
+#include "input/input.cpp"
+#include "utility/utility.cpp"
+
+const char defaultStylesheet[] =
+  "QLabel.title {"
+  "  background: qlineargradient(x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 rgba(255, 0, 0, 48), stop: 1 rgba(128, 0, 0, 96));"
+  "  font-weight: bold;"
+  "  margin-bottom: 5px;"
+  "  padding: 3px;"
+  "}"
+  "\n"
+  "#backdrop {"
+  "  background: #000000;"
+  "}"
+  "\n"
+  "#mouse-capture-box {"
+  "  background: qlineargradient(x1: 0, y1: 0, x2: 1, y2: 1, "
+  "    stop: 0.00 rgba(128, 0, 0, 96), stop: 0.25 rgba(255, 0, 0, 48), "
+  "    stop: 0.75 rgba(255, 0, 0, 48), stop: 1.00 rgba(128, 0, 0, 96));"
+  "  color: #000000;"
+  "  font-weight: bold;"
+  "}"
+  "\n";
+
+void Application::initPaths(const char *basename) {
+  char temp[PATH_MAX];
+
+  if(realpath(basename, temp)) {
+    //remove program name
+    strtr(temp, "\\", "/");
+    for(signed i = strlen(temp) - 1; i >= 0; i--) {
+      if(temp[i] == '/') {
+        temp[i] = 0;
+        break;
+      }
+    }
+
+    if(strend(temp, "/") == false) strcat(temp, "/");
+    snes.config.path.base = temp;
+  } else {
+    snes.config.path.base = "";
+  }
+
+  if(userpath(temp)) {
+    strtr(temp, "\\", "/");
+    if(strend(temp, "/") == false) strcat(temp, "/");
+    snes.config.path.user = temp;
+  } else {
+    snes.config.path.user = "";
+  }
+
+  char cwd[PATH_MAX];
+  snes.config.path.current = getcwd(cwd);
+}
+
+void Application::locateFile(string &filename, bool createDataDirectory) {
+  //first, check if file exists in executable directory (single-user mode)
+  string temp = string() << snes.config.path.base << filename;
+
+  if(file::exists(temp) == false) {
+    //if not, use user data path (multi-user mode)
+    temp = snes.config.path.user;
+    temp << ".bsnes";
+    if(createDataDirectory) mkdir(temp);  //ensure directory exists
+    temp << "/" << filename;
+  }
+
+  filename = temp;
+}
+
+int Application::main(int argc, char **argv) {
+  app = new App(argc, argv);
+  #if !defined(_WIN32)
+  //Windows port uses 256x256 icon from resource file
+  app->setWindowIcon(QIcon(":/bsnes.png"));
+  #endif
+
+  initargs(argc, argv);  //ensure argv[]s are in UTF-8 format
+  initPaths(argv[0]);
+  locateFile(configFilename = "bsnes.cfg", true);
+  locateFile(styleSheetFilename = "style.qss", false);
+
+  string customStylesheet;
+  if(customStylesheet.readfile(styleSheetFilename) == true) {
+    app->setStyleSheet((const char*)customStylesheet);
+  } else {
+    app->setStyleSheet(defaultStylesheet);
+  }
+
+  config.load(configFilename);
+  init();
+  snes.init();
+
+  if(argc == 2) {
+    //if valid file was specified on the command-line, attempt to load it now
+    utility.loadCartridge(argv[1]);
+  }
+
+  while(terminate == false) {
+    processEvents();
+    utility.updateSystemState();
+    inputManager.refresh();
+
+    if(config.input.focusPolicy == Configuration::Input::FocusPolicyPauseEmulation) {
+      bool inactive = (winMain->window->isActiveWindow() == false);
+      if(!autopause && inactive) {
+        autopause = true;
+        audio.clear();
+      } else if(autopause && !inactive) {
+        autopause = false;
+      }
+    } else {
+      autopause = false;
+    }
+
+    if(cartridge.loaded() && !pause && !autopause) {
+      snes.runtoframe();
+    } else {
+      usleep(20 * 1000);
+    }
+
+    supressScreenSaver();
+  }
+
+  config.save(configFilename);
+  return 0;
+}
+
+void Application::processEvents() {
+  app->processEvents();
+}
+
+Application::Application() {
+  terminate = false;
+  power     = false;
+  pause     = false;
+  autopause = false;
+}
+
+Application::~Application() {
+  //deleting (QApplication)app will segfault the application upon exit
+  //delete app;
+}
+
+int main(int argc, char **argv) {
+  return application.main(argc, argv);
+}

tools/bsnes/ui_qt/main.hpp

@@ -0,0 +1,62 @@
+#define UNICODE
+#define QT_NO_DEBUG
+#define QT_CORE_LIB
+#define QT_GUI_LIB
+#define QT_THREAD_SUPPORT
+
+#include <QApplication>
+#include <QtGui>
+//Q_IMPORT_PLUGIN(QJpegPlugin)
+//Q_IMPORT_PLUGIN(QMngPlugin)
+
+#include <../base.hpp>
+#include <../cart/cart.hpp>
+
+#include <nall/config.hpp>
+#include <nall/function.hpp>
+#include <nall/input.hpp>
+using namespace nall;
+
+#include <ruby/ruby.hpp>
+using namespace ruby;
+
+#include <libfilter/libfilter.hpp>
+
+#include "input/input.hpp"
+#include "utility/utility.hpp"
+
+class Application {
+public:
+  class App : public QApplication {
+  public:
+    #ifdef _WIN32
+    bool winEventFilter(MSG *msg, long *result);
+    #endif
+    App(int argc, char **argv) : QApplication(argc, argv) {}
+  } *app;
+
+  bool terminate;  //set to true to terminate main() loop and exit emulator
+  bool power;
+  bool pause;
+  bool autopause;
+
+  string configFilename;
+  string styleSheetFilename;
+
+  int main(int argc, char **argv);
+  void processEvents();
+  void locateFile(string &filename, bool createDataDirectory = false);
+  void initPaths(const char *basename);
+  void init();
+
+  Application();
+  ~Application();
+} application;
+
+struct Style {
+  enum {
+    WindowMargin     = 5,
+    WidgetSpacing    = 5,
+    SeparatorSpacing = 5,
+  };
+};

tools/bsnes/ui_qt/platform.cpp

@@ -0,0 +1,99 @@
+//platform-specific wrappers
+
+#if defined(_WIN32)
+  //Windows 32-bit and 64-bit
+  #define WIN32_LEAN_AND_MEAN
+  #include <windows.h>
+  #include <nall/utf8.hpp>
+
+  char* realpath(const char *filename, char *resolvedname) {
+    wchar_t fn[_MAX_PATH] = L"";
+    _wfullpath(fn, nall::utf16_t(filename), _MAX_PATH);
+    strcpy(resolvedname, nall::utf8_t(fn));
+    return resolvedname;
+  }
+
+  char* userpath(char *path) {
+    wchar_t fp[_MAX_PATH] = L"";
+    SHGetFolderPathW(0, CSIDL_APPDATA | CSIDL_FLAG_CREATE, 0, 0, fp);
+    strcpy(path, nall::utf8_t(fp));
+    return path;
+  }
+
+  char* getcwd(char *path) {
+    wchar_t fp[_MAX_PATH] = L"";
+    _wgetcwd(fp, _MAX_PATH);
+    strcpy(path, nall::utf8_t(fp));
+    return path;
+  }
+
+  int mkdir(const char *path) {
+    return _wmkdir(nall::utf16_t(path));
+  }
+
+  void initargs(int &argc, char **&argv) {
+    wchar_t **wargv = CommandLineToArgvW(GetCommandLineW(), &argc);
+    argv = new char*[argc];
+    for(unsigned i = 0; i < argc; i++) {
+      argv[i] = new char[_MAX_PATH];
+      strcpy(argv[i], nall::utf8_t(wargv[i]));
+    }
+  }
+
+  bool Application::App::winEventFilter(MSG *msg, long *result) {
+    if(msg->message == WM_SYSCOMMAND) {
+      if(msg->wParam == SC_SCREENSAVE || msg->wParam == SC_MONITORPOWER) {
+        *result = 0;
+        return true;
+      }
+    }
+    return false;
+  }
+
+  void supressScreenSaver() {
+    //handled by event filter above
+  }
+#else
+  #define None XNone
+  #define Window XWindow
+  #include <X11/extensions/XTest.h>
+  #undef None
+  #undef Window
+
+  //POSIX-compatible (Linux, BSD, etc.)
+  char* userpath(char *path) {
+    *path = 0;
+    struct passwd *userinfo = getpwuid(getuid());
+    if(userinfo) strcpy(path, userinfo->pw_dir);
+    return path;
+  }
+
+  char *getcwd(char *path) {
+    return getcwd(path, PATH_MAX);
+  }
+
+  #define mkdir(path) (mkdir)(path, 0755)
+
+  void initargs(int &argc, char **&argv) {
+  }
+
+  void supressScreenSaver() {
+    static clock_t delta_x = 0, delta_y = 0;
+
+    delta_y = clock();
+    if(delta_y - delta_x < CLOCKS_PER_SEC * 20) return;
+    delta_x = delta_y;
+
+    //XSetScreenSaver(timeout = 0) does not work
+    //XResetScreenSaver() does not work
+    //XScreenSaverSuspend() does not work
+    //DPMSDisable() does not work
+    //XSendEvent(KeyPressMask) does not work
+    //use XTest extension to send fake keypress every ~20 seconds.
+    //keycode of 255 does not map to any actual key,
+    //but it will block screensaver and power management.
+    Display *display = XOpenDisplay(0);
+    XTestFakeKeyEvent(display, 255, True,  0);
+    XTestFakeKeyEvent(display, 255, False, 0);
+  }
+#endif

tools/bsnes/ui_qt/resource/resource.qrc

@@ -0,0 +1,10 @@
+<!DOCTYPE RCC>
+<RCC version="1.0">
+  <qresource>
+    <file alias="bsnes.png">../../data/bsnes.png</file>
+    <file alias="logo.png">../../data/logo.png</file>
+    <file alias="joypad.png">../../data/joypad.png</file>
+    <file alias="documentation.html">../../data/documentation.html</file>
+    <file alias="license.html">../../data/license.html</file>
+  </qresource>
+</RCC>

tools/bsnes/ui_qt/resource/resource.rc

@@ -0,0 +1,2 @@
+1 24 "data/bsnes.Manifest"
+IDI_ICON1 ICON DISCARDABLE "data/bsnes.ico"

tools/bsnes/ui_qt/settings/advanced.cpp

@@ -0,0 +1,183 @@
+void AdvancedSettingsWindow::setup() {
+  panel = new QWidget;
+
+  layout = new QVBoxLayout;
+  layout->setMargin(0);
+  layout->setSpacing(0);
+
+  title = new QLabel("Advanced Configuration Settings");
+  title->setProperty("class", "title");
+  layout->addWidget(title);
+
+  driverLayout = new QGridLayout;
+  driverLayout->setVerticalSpacing(0);
+  driverLayout->setHorizontalSpacing(Style::WidgetSpacing); {
+    videoLabel = new QLabel("Video driver:");
+    driverLayout->addWidget(videoLabel, 0, 0);
+
+    audioLabel = new QLabel("Audio driver:");
+    driverLayout->addWidget(audioLabel, 0, 1);
+
+    inputLabel = new QLabel("Input driver:");
+    driverLayout->addWidget(inputLabel, 0, 2);
+
+    videoDriver = new QComboBox;
+    driverLayout->addWidget(videoDriver, 1, 0);
+
+    audioDriver = new QComboBox;
+    driverLayout->addWidget(audioDriver, 1, 1);
+
+    inputDriver = new QComboBox;
+    driverLayout->addWidget(inputDriver, 1, 2);
+
+    driverInfo = new QLabel("<i>Note: driver changes require restart to take effect.</i>");
+    driverLayout->addWidget(driverInfo, 2, 0, 1, 3);
+  }
+  layout->addLayout(driverLayout);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  regionTitle = new QLabel("Hardware region:");
+  layout->addWidget(regionTitle);
+
+  regionLayout = new QHBoxLayout;
+  regionLayout->setSpacing(Style::WidgetSpacing); {
+    regionGroup = new QButtonGroup(panel);
+
+    regionAuto = new QRadioButton("Auto-detect");
+    regionAuto->setToolTip("Automatically select hardware region on cartridge load");
+    regionGroup->addButton(regionAuto);
+    regionLayout->addWidget(regionAuto);
+
+    regionNTSC = new QRadioButton("NTSC");
+    regionNTSC->setToolTip("Force NTSC region (Japan, Korea, US)");
+    regionGroup->addButton(regionNTSC);
+    regionLayout->addWidget(regionNTSC);
+
+    regionPAL = new QRadioButton("PAL");
+    regionPAL->setToolTip("Force PAL region (Europe, ...)");
+    regionGroup->addButton(regionPAL);
+    regionLayout->addWidget(regionPAL);
+  }
+  layout->addLayout(regionLayout);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  portTitle = new QLabel("Expansion port device:");
+  layout->addWidget(portTitle);
+
+  portLayout = new QHBoxLayout;
+  portLayout->setSpacing(Style::WidgetSpacing); {
+    portGroup = new QButtonGroup(panel);
+
+    portSatellaview = new QRadioButton("Satellaview");
+    portGroup->addButton(portSatellaview);
+    portLayout->addWidget(portSatellaview);
+
+    portNone = new QRadioButton("None");
+    portGroup->addButton(portNone);
+    portLayout->addWidget(portNone);
+
+    portSpacer = new QWidget;
+    portLayout->addWidget(portSpacer);
+  }
+  layout->addLayout(portLayout);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  focusTitle = new QLabel("When main window does not have focus:");
+  layout->addWidget(focusTitle);
+
+  focusLayout = new QHBoxLayout;
+  focusLayout->setSpacing(Style::WidgetSpacing); {
+    focusButtonGroup = new QButtonGroup(panel);
+
+    focusPause = new QRadioButton("Pause emulation");
+    focusPause->setToolTip("Ideal for prolonged multi-tasking");
+    focusButtonGroup->addButton(focusPause);
+    focusLayout->addWidget(focusPause);
+
+    focusIgnore = new QRadioButton("Ignore input");
+    focusIgnore->setToolTip("Ideal for light multi-tasking when using keyboard");
+    focusButtonGroup->addButton(focusIgnore);
+    focusLayout->addWidget(focusIgnore);
+
+    focusAllow = new QRadioButton("Allow input");
+    focusAllow->setToolTip("Ideal for light multi-tasking when using joypad(s)");
+    focusButtonGroup->addButton(focusAllow);
+    focusLayout->addWidget(focusAllow);
+  }
+  layout->addLayout(focusLayout);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  panel->setLayout(layout);
+  initializeUi();
+
+  connect(videoDriver, SIGNAL(currentIndexChanged(int)), this, SLOT(videoDriverChange(int)));
+  connect(audioDriver, SIGNAL(currentIndexChanged(int)), this, SLOT(audioDriverChange(int)));
+  connect(inputDriver, SIGNAL(currentIndexChanged(int)), this, SLOT(inputDriverChange(int)));
+  connect(regionAuto, SIGNAL(pressed()), this, SLOT(setRegionAuto()));
+  connect(regionNTSC, SIGNAL(pressed()), this, SLOT(setRegionNTSC()));
+  connect(regionPAL, SIGNAL(pressed()), this, SLOT(setRegionPAL()));
+  connect(portSatellaview, SIGNAL(pressed()), this, SLOT(setPortSatellaview()));
+  connect(portNone, SIGNAL(pressed()), this, SLOT(setPortNone()));
+  connect(focusPause, SIGNAL(pressed()), this, SLOT(pauseWithoutFocus()));
+  connect(focusIgnore, SIGNAL(pressed()), this, SLOT(ignoreInputWithoutFocus()));
+  connect(focusAllow, SIGNAL(pressed()), this, SLOT(allowInputWithoutFocus()));
+}
+
+void AdvancedSettingsWindow::initializeUi() {
+  lstring part;
+
+  part.split(";", video.driver_list());
+  for(unsigned i = 0; i < part.size(); i++) {
+    videoDriver->addItem(utf8() << part[i]);
+    if(part[i] == config.system.video) videoDriver->setCurrentIndex(i);
+  }
+
+  part.split(";", audio.driver_list());
+  for(unsigned i = 0; i < part.size(); i++) {
+    audioDriver->addItem(utf8() << part[i]);
+    if(part[i] == config.system.audio) audioDriver->setCurrentIndex(i);
+  }
+
+  part.split(";", input.driver_list());
+  for(unsigned i = 0; i < part.size(); i++) {
+    inputDriver->addItem(utf8() << part[i]);
+    if(part[i] == config.system.input) inputDriver->setCurrentIndex(i);
+  }
+
+  regionAuto->setChecked(snes.config.region == SNES::Autodetect);
+  regionNTSC->setChecked(snes.config.region == SNES::NTSC);
+  regionPAL->setChecked (snes.config.region == SNES::PAL);
+
+  portSatellaview->setChecked(snes.config.expansion_port == SNES::ExpansionBSX);
+  portNone->setChecked       (snes.config.expansion_port == SNES::ExpansionNone);
+
+  focusPause->setChecked (config.input.focusPolicy == Configuration::Input::FocusPolicyPauseEmulation);
+  focusIgnore->setChecked(config.input.focusPolicy == Configuration::Input::FocusPolicyIgnoreInput);
+  focusAllow->setChecked (config.input.focusPolicy == Configuration::Input::FocusPolicyAllowInput);
+}
+
+void AdvancedSettingsWindow::videoDriverChange(int index) {
+  if(index >= 0) config.system.video = videoDriver->itemText(index).toUtf8().data();
+}
+
+void AdvancedSettingsWindow::audioDriverChange(int index) {
+  if(index >= 0) config.system.audio = audioDriver->itemText(index).toUtf8().data();
+}
+
+void AdvancedSettingsWindow::inputDriverChange(int index) {
+  if(index >= 0) config.system.input = inputDriver->itemText(index).toUtf8().data();
+}
+
+void AdvancedSettingsWindow::setRegionAuto() { snes.config.region = SNES::Autodetect; }
+void AdvancedSettingsWindow::setRegionNTSC() { snes.config.region = SNES::NTSC; }
+void AdvancedSettingsWindow::setRegionPAL()  { snes.config.region = SNES::PAL; }
+
+void AdvancedSettingsWindow::setPortSatellaview() { snes.config.expansion_port = SNES::ExpansionBSX; }
+void AdvancedSettingsWindow::setPortNone()        { snes.config.expansion_port = SNES::ExpansionNone; }
+
+void AdvancedSettingsWindow::pauseWithoutFocus()       { config.input.focusPolicy = Configuration::Input::FocusPolicyPauseEmulation; }
+void AdvancedSettingsWindow::ignoreInputWithoutFocus() { config.input.focusPolicy = Configuration::Input::FocusPolicyIgnoreInput; }
+void AdvancedSettingsWindow::allowInputWithoutFocus()  { config.input.focusPolicy = Configuration::Input::FocusPolicyAllowInput; }

tools/bsnes/ui_qt/settings/advanced.hpp

@@ -0,0 +1,54 @@
+class AdvancedSettingsWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *panel;
+    QVBoxLayout *layout;
+      QLabel *title;
+      QGridLayout *driverLayout;
+        QLabel *videoLabel;
+        QLabel *audioLabel;
+        QLabel *inputLabel;
+        QComboBox *videoDriver;
+        QComboBox *audioDriver;
+        QComboBox *inputDriver;
+        QLabel *driverInfo;
+
+      QLabel *regionTitle;
+      QHBoxLayout *regionLayout;
+        QButtonGroup *regionGroup;
+        QRadioButton *regionAuto;
+        QRadioButton *regionNTSC;
+        QRadioButton *regionPAL;
+
+      QLabel *portTitle;
+      QHBoxLayout *portLayout;
+        QButtonGroup *portGroup;
+        QRadioButton *portSatellaview;
+        QRadioButton *portNone;
+        QWidget *portSpacer;
+
+      QLabel *focusTitle;
+      QHBoxLayout *focusLayout;
+        QButtonGroup *focusButtonGroup;
+        QRadioButton *focusPause;
+        QRadioButton *focusIgnore;
+        QRadioButton *focusAllow;
+      QWidget *spacer;
+
+  void setup();
+  void initializeUi();
+
+public slots:
+  void videoDriverChange(int index);
+  void audioDriverChange(int index);
+  void inputDriverChange(int index);
+  void setRegionAuto();
+  void setRegionNTSC();
+  void setRegionPAL();
+  void setPortSatellaview();
+  void setPortNone();
+  void pauseWithoutFocus();
+  void ignoreInputWithoutFocus();
+  void allowInputWithoutFocus();
+} *winAdvancedSettings;

tools/bsnes/ui_qt/settings/audio.cpp

@@ -0,0 +1,129 @@
+void AudioSettingsWindow::setup() {
+  panel = new QWidget;
+
+  layout = new QVBoxLayout;
+  layout->setMargin(0);
+  layout->setSpacing(0);
+
+  title = new QLabel("Audio Settings");
+  title->setProperty("class", "title");
+  layout->addWidget(title);
+
+  boxes = new QHBoxLayout; {
+    frequencyLabel = new QLabel("Frequency:");
+    frequencyLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    boxes->addWidget(frequencyLabel);
+
+    frequency = new QComboBox;
+    frequency->addItem("32000hz");
+    frequency->addItem("44100hz");
+    frequency->addItem("48000hz");
+    frequency->addItem("96000hz");
+    boxes->addWidget(frequency);
+
+    latencyLabel = new QLabel("Latency:");
+    latencyLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    boxes->addWidget(latencyLabel);
+
+    latency = new QComboBox;
+    latency->addItem("20ms");
+    latency->addItem("40ms");
+    latency->addItem("60ms");
+    latency->addItem("80ms");
+    latency->addItem("100ms");
+    latency->addItem("120ms");
+    boxes->addWidget(latency);
+  }
+  boxes->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(boxes);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  sliders = new QGridLayout; {
+    volumeLabel = new QLabel("Volume: 100%");
+    volumeLabel->setToolTip("Warning: any volume other than 100% will result in a slight audio quality loss");
+    sliders->addWidget(volumeLabel, 0, 0);
+
+    volume = new QSlider(Qt::Horizontal);
+    volume->setMinimum(0);
+    volume->setMaximum(200);
+    sliders->addWidget(volume, 0, 1);
+
+    frequencySkewLabel = new QLabel("Input frequency: 32000hz");
+    frequencySkewLabel->setToolTip(
+      "Adjusts audio resampling rate.\n"
+      "When both video sync and audio sync are enabled, use this setting to fine-tune the output.\n"
+      "Lower the input frequency to clean audio output, eliminating crackling / popping.\n"
+      "Raise the input frequency to smooth video output, eliminating duplicated frames."
+    );
+    sliders->addWidget(frequencySkewLabel, 1, 0);
+
+    frequencySkew = new QSlider(Qt::Horizontal);
+    frequencySkew->setMinimum(31800);
+    frequencySkew->setMaximum(32200);
+    sliders->addWidget(frequencySkew);
+  }
+  sliders->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(sliders);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  panel->setLayout(layout);
+  connect(frequency, SIGNAL(currentIndexChanged(int)), this, SLOT(frequencyChange(int)));
+  connect(latency, SIGNAL(currentIndexChanged(int)), this, SLOT(latencyChange(int)));
+  connect(volume, SIGNAL(valueChanged(int)), this, SLOT(volumeAdjust(int)));
+  connect(frequencySkew, SIGNAL(valueChanged(int)), this, SLOT(frequencySkewAdjust(int)));
+
+  syncUi();
+}
+
+void AudioSettingsWindow::syncUi() {
+  int n;
+
+  n = config.audio.outputFrequency;
+       if(n <= 32000) frequency->setCurrentIndex(0);
+  else if(n <= 44100) frequency->setCurrentIndex(1);
+  else if(n <= 48000) frequency->setCurrentIndex(2);
+  else if(n <= 96000) frequency->setCurrentIndex(3);
+  else frequency->setCurrentIndex(0);
+
+  n = config.audio.latency;
+  latency->setCurrentIndex((n - 20) / 20);
+
+  n = config.audio.volume;
+  volumeLabel->setText(utf8() << "Volume: " << n << "%");
+  volume->setSliderPosition(n);
+
+  n = config.audio.inputFrequency;
+  frequencySkewLabel->setText(utf8() << "Input frequency: " << n << "hz");
+  frequencySkew->setSliderPosition(n);
+}
+
+void AudioSettingsWindow::frequencyChange(int value) {
+  switch(value) { default:
+    case 0: config.audio.outputFrequency = 32000; break;
+    case 1: config.audio.outputFrequency = 44100; break;
+    case 2: config.audio.outputFrequency = 48000; break;
+    case 3: config.audio.outputFrequency = 96000; break;
+  }
+  audio.set(Audio::Frequency, config.audio.outputFrequency);
+}
+
+void AudioSettingsWindow::latencyChange(int value) {
+  value = max(0, min(5, value));
+  config.audio.latency = 20 + value * 20;
+  audio.set(Audio::Latency, config.audio.latency);
+}
+
+void AudioSettingsWindow::volumeAdjust(int value) {
+  config.audio.volume = value;
+  audio.set(Audio::Volume, config.audio.volume);
+  syncUi();
+}
+
+void AudioSettingsWindow::frequencySkewAdjust(int value) {
+  config.audio.inputFrequency = value;
+  utility.updateEmulationSpeed();
+  syncUi();
+}

tools/bsnes/ui_qt/settings/audio.hpp

@@ -0,0 +1,28 @@
+class AudioSettingsWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *panel;
+    QVBoxLayout *layout;
+      QLabel *title;
+      QHBoxLayout *boxes;
+        QLabel *frequencyLabel;
+        QComboBox *frequency;
+        QLabel *latencyLabel;
+        QComboBox *latency;
+      QGridLayout *sliders;
+        QLabel *volumeLabel;
+        QSlider *volume;
+        QLabel *frequencySkewLabel;
+        QSlider *frequencySkew;
+      QWidget *spacer;
+
+  void setup();
+  void syncUi();
+
+public slots:
+  void frequencyChange(int value);
+  void latencyChange(int value);
+  void volumeAdjust(int value);
+  void frequencySkewAdjust(int value);
+} *winAudioSettings;

tools/bsnes/ui_qt/settings/cheateditor.cpp

@@ -0,0 +1,156 @@
+void CheatEditorWindow::setup() {
+  panel = new QWidget;
+
+  layout = new QVBoxLayout;
+  layout->setMargin(0);
+  layout->setSpacing(0);
+
+  title = new QLabel("Cheat Code Editor");
+  title->setProperty("class", "title");
+  layout->addWidget(title);
+
+  list = new QTreeWidget;
+  list->setColumnCount(4);
+  list->setHeaderLabels(QStringList() << "Hidden" << "" << "Code" << "Description");
+  list->sortByColumn(0, Qt::AscendingOrder);  //set initial sorting, preserve user setting after reloadList()
+  list->hideColumn(0);  //used for default sorting + hides child expansion box
+  layout->addWidget(list);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  controls = new QHBoxLayout; {
+    addCode = new QPushButton("Add Code ...");
+    controls->addWidget(addCode);
+
+    editCode = new QPushButton("Edit Code ...");
+    controls->addWidget(editCode);
+
+    deleteCode = new QPushButton("Delete Code");
+    controls->addWidget(deleteCode);
+  }
+  controls->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(controls);
+
+  panel->setLayout(layout);
+  connect(list, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(itemChanged(QTreeWidgetItem*)));
+  connect(list, SIGNAL(itemActivated(QTreeWidgetItem*, int)), this, SLOT(editSelectedCode()));
+  connect(list, SIGNAL(itemSelectionChanged()), this, SLOT(listChanged()));
+  connect(addCode, SIGNAL(released()), this, SLOT(addNewCode()));
+  connect(editCode, SIGNAL(released()), this, SLOT(editSelectedCode()));
+  connect(deleteCode, SIGNAL(released()), this, SLOT(deleteSelectedCode()));
+
+  reloadList();
+}
+
+void CheatEditorWindow::syncUi() {
+  addCode->setEnabled(cartridge.loaded());
+  QList<QTreeWidgetItem*> itemList = list->selectedItems();
+  editCode->setEnabled(cartridge.loaded() && itemList.count() == 1);
+  deleteCode->setEnabled(cartridge.loaded() && itemList.count() == 1);
+}
+
+//called when loading a new game, or after adding / deleting a code:
+//synchronizes list with cheat class list
+void CheatEditorWindow::reloadList() {
+  disconnect(list, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(itemChanged(QTreeWidgetItem*)));
+
+  list->clear();
+  list->setSortingEnabled(false);
+  listItem.reset();
+
+  if(cartridge.loaded()) {
+    for(unsigned i = 0; i < cheat.count(); i++) {
+      Cheat::cheat_t code;
+      cheat.get(i, code);
+
+      //only want to show one code / description line in list
+      lstring lcode, ldesc;
+      lcode.split("+",  code.code);
+      ldesc.split("\n", code.desc);
+      if(lcode.size() > 1) lcode[0] << "+" << (int)(lcode.size() - 1);
+      if(ldesc.size() > 1) ldesc[0] << " ...";
+
+      QTreeWidgetItem *item = new QTreeWidgetItem(list);
+      item->setText(0, utf8() << (int)(1000000 + i));
+      item->setCheckState(1, code.enabled ? Qt::Checked : Qt::Unchecked);
+      item->setText(2, utf8() << lcode[0]);
+      item->setText(3, utf8() << ldesc[0]);
+      listItem.add(item);
+    }
+  }
+
+  list->setSortingEnabled(true);
+  list->resizeColumnToContents(1);  //shrink checkbox column width
+  list->resizeColumnToContents(2);  //shrink code column width
+  connect(list, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(itemChanged(QTreeWidgetItem*)));
+  syncUi();
+}
+
+//called when modifying an existing code:
+//list items are all still valid, only need to update item codes + descriptions
+void CheatEditorWindow::updateList() {
+  disconnect(list, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(itemChanged(QTreeWidgetItem*)));
+
+  for(unsigned i = 0; i < listItem.size(); i++) {
+    Cheat::cheat_t code;
+    cheat.get(i, code);
+
+    //only want to show one code / description line in list
+    lstring lcode, ldesc;
+    lcode.split("+",  code.code);
+    ldesc.split("\n", code.desc);
+    if(lcode.size() > 1) lcode[0] << "+" << (int)(lcode.size() - 1);
+    if(ldesc.size() > 1) ldesc[0] << " ...";
+
+    QTreeWidgetItem *item = listItem[i];
+    item->setCheckState(1, code.enabled ? Qt::Checked : Qt::Unchecked);
+    item->setText(2, utf8() << lcode[0]);
+    item->setText(3, utf8() << ldesc[0]);
+  }
+
+  list->resizeColumnToContents(1);  //shrink checkbox column width
+  list->resizeColumnToContents(2);  //shrink code column width
+  connect(list, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(itemChanged(QTreeWidgetItem*)));
+  syncUi();
+}
+
+//called when item enabled checkbox was clicked (eg cheat code enable state was toggled on or off)
+void CheatEditorWindow::itemChanged(QTreeWidgetItem *item) {
+  signed i = listItem.find(item);
+  if(i >= 0) item->checkState(1) == Qt::Checked ? cheat.enable(i) : cheat.disable(i);
+}
+
+void CheatEditorWindow::listChanged() {
+  syncUi();
+}
+
+void CheatEditorWindow::addNewCode() {
+  if(cartridge.loaded()) winCodeEditor->addCode();
+}
+
+void CheatEditorWindow::editSelectedCode() {
+  if(cartridge.loaded()) {
+    QTreeWidgetItem *item = list->currentItem();
+    if(item && item->isSelected()) {
+      signed i = listItem.find(item);
+      if(i >= 0) winCodeEditor->editCode(i);
+    }
+  }
+}
+
+void CheatEditorWindow::deleteSelectedCode() {
+  if(cartridge.loaded()) {
+    QTreeWidgetItem *item = list->currentItem();
+    if(item && item->isSelected()) {
+      signed i = listItem.find(item);
+      if(i >= 0) {
+        //if code editor is modifying an existing code, its index will be invalidated by delete;
+        //therefore, the editor window must be closed first
+        if(winCodeEditor->activeCode >= 0) winCodeEditor->dismiss();
+
+        //remove code, and resync listItem with cheat list
+        cheat.remove(i);
+        reloadList();
+      }
+    }
+  }
+}

tools/bsnes/ui_qt/settings/cheateditor.hpp

@@ -0,0 +1,28 @@
+class CheatEditorWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *panel;
+    QVBoxLayout *layout;
+    QLabel *title;
+    QTreeWidget *list;
+    QHBoxLayout *controls;
+      QPushButton *addCode;
+      QPushButton *editCode;
+      QPushButton *deleteCode;
+
+  void setup();
+  void syncUi();
+  void reloadList();
+  void updateList();
+
+public slots:
+  void itemChanged(QTreeWidgetItem *item);
+  void listChanged();
+  void addNewCode();
+  void editSelectedCode();
+  void deleteSelectedCode();
+
+private:
+  array<QTreeWidgetItem*> listItem;
+} *winCheatEditor;

tools/bsnes/ui_qt/settings/input.cpp

@@ -0,0 +1,174 @@
+void InputSettingsWindow::setup() {
+  panel = new QWidget;
+
+  layout = new QVBoxLayout;
+  layout->setMargin(0);
+  layout->setSpacing(0);
+
+  title = new QLabel("Input Configuration Editor");
+  title->setProperty("class", "title");
+  layout->addWidget(title);
+
+  selection = new QHBoxLayout; {
+    port = new QComboBox;
+    port->addItem("Controller Port 1");
+    port->addItem("Controller Port 2");
+    port->addItem("User Interface");
+    selection->addWidget(port);
+
+    device = new QComboBox;
+    selection->addWidget(device);
+  }
+  selection->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(selection);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  list = new QTreeWidget;
+  list->setColumnCount(3);
+  list->setHeaderLabels(QStringList() << "Hidden" << "Name" << "Assignment");
+  list->hideColumn(0);  //used for default sorting + hides child expansion box
+  layout->addWidget(list);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  controls = new QHBoxLayout; {
+    assign = new QPushButton("Assign ...");
+    controls->addWidget(assign);
+
+    assignAll = new QPushButton("Assign All ...");
+    controls->addWidget(assignAll);
+
+    unassign = new QPushButton("Unassign");
+    controls->addWidget(unassign);
+  }
+  controls->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(controls);
+
+  panel->setLayout(layout);
+  connect(port, SIGNAL(currentIndexChanged(int)), this, SLOT(portChanged()));
+  connect(device, SIGNAL(currentIndexChanged(int)), this, SLOT(reloadList()));
+  connect(list, SIGNAL(itemActivated(QTreeWidgetItem*, int)), this, SLOT(assignKey()));
+  connect(list, SIGNAL(itemSelectionChanged()), this, SLOT(listChanged()));
+  connect(assign, SIGNAL(released()), this, SLOT(assignKey()));
+  connect(assignAll, SIGNAL(released()), this, SLOT(assignAllKeys()));
+  connect(unassign, SIGNAL(released()), this, SLOT(unassignKey()));
+
+  portChanged();
+}
+
+void InputSettingsWindow::syncUi() {
+  QList<QTreeWidgetItem*> itemList = list->selectedItems();
+  assign->setEnabled(itemList.count() == 1);
+  //allow rapid assign for controllers from both ports, but not for UI shortcuts
+  assignAll->setEnabled(port->currentIndex() < 2);
+  unassign->setEnabled(itemList.count() == 1);
+}
+
+//when port combobox item is changed, device list needs to be repopulated
+void InputSettingsWindow::portChanged() {
+  disconnect(device, SIGNAL(currentIndexChanged(int)), this, SLOT(reloadList()));
+
+  device->clear();
+  deviceItem.reset();
+
+  int index = port->currentIndex();
+  if(index < 2) {
+    //this is a controller port
+    for(unsigned i = 0; i < inputPool.size(); i++) {
+      //only add devices for selected port
+      if(inputPool[i]->port == index) {
+        device->addItem(inputPool[i]->name);
+        deviceItem.add(inputPool[i]);
+      }
+    }
+  } else {
+    //user interface controls
+    for(unsigned i = 0; i < inputUiPool.size(); i++) {
+      device->addItem(inputUiPool[i]->name);
+      deviceItem.add(inputUiPool[i]);
+    }
+  }
+
+  reloadList();
+  connect(device, SIGNAL(currentIndexChanged(int)), this, SLOT(reloadList()));
+}
+
+//when device combobox item is changed, object list needs to be repopulated
+void InputSettingsWindow::reloadList() {
+  list->clear();
+  list->setSortingEnabled(false);
+  listItem.reset();
+
+  int index = device->currentIndex();
+  if(index < deviceItem.size()) {
+    InputGroup &group = *deviceItem[index];
+    for(unsigned i = 0; i < group.size(); i++) {
+      QTreeWidgetItem *item = new QTreeWidgetItem(list);
+      item->setText(0, utf8() << (int)(1000000 + i));
+      item->setText(1, group[i]->name);
+      item->setText(2, (const char*)group[i]->id);
+      listItem.add(item);
+    }
+  }
+
+  list->setSortingEnabled(true);
+  list->sortByColumn(0, Qt::AscendingOrder);  //set default sorting on list change, overriding user setting
+  list->resizeColumnToContents(1);  //shrink name column
+  syncUi();
+}
+
+void InputSettingsWindow::listChanged() {
+  syncUi();
+}
+
+//InputCaptureWindow calls this after a successful key assignment change:
+//need to update list of values to show new key assignment value.
+void InputSettingsWindow::updateList() {
+  int index = device->currentIndex();
+  if(index < deviceItem.size()) {
+    InputGroup &group = *deviceItem[index];
+
+    for(unsigned i = 0; i < listItem.size(); i++) {
+      listItem[i]->setText(2, (const char*)group[i]->id);
+    }
+  }
+}
+
+void InputSettingsWindow::assignKey() {
+  int index = device->currentIndex();
+  if(index < deviceItem.size()) {
+    InputGroup &group = *deviceItem[index];
+
+    QTreeWidgetItem *item = list->currentItem();
+    if(item && item->isSelected()) {
+      signed i = listItem.find(item);
+      if(i >= 0) winInputCapture->activate(group[i]);
+    }
+  }
+}
+
+void InputSettingsWindow::assignAllKeys() {
+  int index = port->currentIndex();
+  if(index < 2) {
+    index = device->currentIndex();
+    if(index < deviceItem.size()) {
+      winInputCapture->activate(deviceItem[index]);
+    }
+  }
+}
+
+void InputSettingsWindow::unassignKey() {
+  int index = device->currentIndex();
+  if(index < deviceItem.size()) {
+    InputGroup &group = *deviceItem[index];
+
+    QTreeWidgetItem *item = list->currentItem();
+    if(item && item->isSelected()) {
+      signed i = listItem.find(item);
+      if(i >= 0) {
+        group[i]->id = "none";
+        inputManager.bind();  //update key bindings to reflect object ID change above
+        item->setText(2, (const char*)group[i]->id);
+      }
+    }
+  }
+}

tools/bsnes/ui_qt/settings/input.hpp

@@ -0,0 +1,32 @@
+class InputSettingsWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *panel;
+    QVBoxLayout *layout;
+      QLabel *title;
+      QHBoxLayout *selection;
+        QComboBox *port;
+        QComboBox *device;
+      QTreeWidget *list;
+      QHBoxLayout *controls;
+        QPushButton *assign;
+        QPushButton *assignAll;
+        QPushButton *unassign;
+
+  void setup();
+  void syncUi();
+
+public slots:
+  void portChanged();
+  void reloadList();
+  void listChanged();
+  void updateList();
+  void assignKey();
+  void assignAllKeys();
+  void unassignKey();
+
+private:
+  array<InputGroup*> deviceItem;
+  array<QTreeWidgetItem*> listItem;
+} *winInputSettings;

tools/bsnes/ui_qt/settings/paths.cpp

@@ -0,0 +1,200 @@
+void PathSettingsWindow::setup() {
+  panel = new QWidget;
+
+  layout = new QVBoxLayout;
+  layout->setMargin(0);
+  layout->setSpacing(0);
+
+  title = new QLabel("Default Folder Paths");
+  title->setProperty("class", "title");
+  layout->addWidget(title);
+
+  gameLabel = new QLabel("Games:");
+  layout->addWidget(gameLabel);
+
+  games = new QHBoxLayout; {
+    games->setMargin(0);
+
+    gamePath = new QLineEdit;
+    gamePath->setReadOnly(true);
+    games->addWidget(gamePath);
+
+    gameSelect = new QPushButton("Select ...");
+    games->addWidget(gameSelect);
+
+    gameDefault = new QPushButton("Default");
+    games->addWidget(gameDefault);
+  }
+  games->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(games);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  saveLabel = new QLabel("Save RAM:");
+  layout->addWidget(saveLabel);
+
+  saves = new QHBoxLayout; {
+    saves->setMargin(0);
+
+    savePath = new QLineEdit;
+    savePath->setReadOnly(true);
+    saves->addWidget(savePath);
+
+    saveSelect = new QPushButton("Select ...");
+    saves->addWidget(saveSelect);
+
+    saveDefault = new QPushButton("Default");
+    saves->addWidget(saveDefault);
+  }
+  saves->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(saves);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  patchLabel = new QLabel("UPS patches:");
+  layout->addWidget(patchLabel);
+
+  patches = new QHBoxLayout; {
+    patches->setMargin(0);
+
+    patchPath = new QLineEdit;
+    patchPath->setReadOnly(true);
+    patches->addWidget(patchPath);
+
+    patchSelect = new QPushButton("Select ...");
+    patches->addWidget(patchSelect);
+
+    patchDefault = new QPushButton("Default");
+    patches->addWidget(patchDefault);
+  }
+  patches->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(patches);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  cheatLabel = new QLabel("Cheat codes:");
+  layout->addWidget(cheatLabel);
+
+  cheats = new QHBoxLayout; {
+    cheats->setMargin(0);
+
+    cheatPath = new QLineEdit;
+    cheatPath->setReadOnly(true);
+    cheats->addWidget(cheatPath);
+
+    cheatSelect = new QPushButton("Select ...");
+    cheats->addWidget(cheatSelect);
+
+    cheatDefault = new QPushButton("Default");
+    cheats->addWidget(cheatDefault);
+  }
+  cheats->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(cheats);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  dataLabel = new QLabel("Export data:");
+  layout->addWidget(dataLabel);
+
+  data = new QHBoxLayout;
+  data->setMargin(0);
+  data->setSpacing(Style::WidgetSpacing); {
+    dataPath = new QLineEdit;
+    dataPath->setReadOnly(true);
+    data->addWidget(dataPath);
+
+    dataSelect = new QPushButton("Select ...");
+    data->addWidget(dataSelect);
+
+    dataDefault = new QPushButton("Default");
+    data->addWidget(dataDefault);
+  }
+  layout->addLayout(data);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  syncUi();
+
+  panel->setLayout(layout);
+  connect(gameSelect, SIGNAL(released()), this, SLOT(selectGamePath()));
+  connect(gameDefault, SIGNAL(released()), this, SLOT(defaultGamePath()));
+  connect(saveSelect, SIGNAL(released()), this, SLOT(selectSavePath()));
+  connect(saveDefault, SIGNAL(released()), this, SLOT(defaultSavePath()));
+  connect(patchSelect, SIGNAL(released()), this, SLOT(selectPatchPath()));
+  connect(patchDefault, SIGNAL(released()), this, SLOT(defaultPatchPath()));
+  connect(cheatSelect, SIGNAL(released()), this, SLOT(selectCheatPath()));
+  connect(cheatDefault, SIGNAL(released()), this, SLOT(defaultCheatPath()));
+  connect(dataSelect, SIGNAL(released()), this, SLOT(selectDataPath()));
+  connect(dataDefault, SIGNAL(released()), this, SLOT(defaultDataPath()));
+}
+
+void PathSettingsWindow::syncUi() {
+  gamePath->setText (snes.config.path.rom   == "" ? "<startup path>"               : (const char*)snes.config.path.rom);
+  savePath->setText (snes.config.path.save  == "" ? "<same folder as loaded game>" : (const char*)snes.config.path.save);
+  patchPath->setText(snes.config.path.patch == "" ? "<same folder as loaded game>" : (const char*)snes.config.path.patch);
+  cheatPath->setText(snes.config.path.cheat == "" ? "<same folder as loaded game>" : (const char*)snes.config.path.cheat);
+  dataPath->setText (snes.config.path.data  == "" ? "<same folder as loaded game>" : (const char*)snes.config.path.data);
+}
+
+void PathSettingsWindow::selectGamePath() {
+  string path = utility.selectFolder("Default Game Path");
+  if(path.length() > 0) {
+    snes.config.path.rom = path;
+    syncUi();
+  }
+}
+
+void PathSettingsWindow::defaultGamePath() {
+  snes.config.path.rom = "";
+  syncUi();
+}
+
+void PathSettingsWindow::selectSavePath() {
+  string path = utility.selectFolder("Default Save RAM Path");
+  if(path.length() > 0) {
+    snes.config.path.save = path;
+    syncUi();
+  }
+}
+
+void PathSettingsWindow::defaultSavePath() {
+  snes.config.path.save = "";
+  syncUi();
+}
+
+void PathSettingsWindow::selectPatchPath() {
+  string path = utility.selectFolder("Default UPS Patch Path");
+  if(path.length() > 0) {
+    snes.config.path.patch = path;
+    syncUi();
+  }
+}
+
+void PathSettingsWindow::defaultPatchPath() {
+  snes.config.path.patch = "";
+  syncUi();
+}
+
+void PathSettingsWindow::selectCheatPath() {
+  string path = utility.selectFolder("Default Cheat File Path");
+  if(path.length() > 0) {
+    snes.config.path.cheat = path;
+    syncUi();
+  }
+}
+
+void PathSettingsWindow::defaultCheatPath() {
+  snes.config.path.cheat = "";
+  syncUi();
+}
+
+void PathSettingsWindow::selectDataPath() {
+  string path = utility.selectFolder("Default Export Data Path");
+  if(path.length() > 0) {
+    snes.config.path.data = path;
+    syncUi();
+  }
+}
+
+void PathSettingsWindow::defaultDataPath() {
+  snes.config.path.data = "";
+  syncUi();
+}

tools/bsnes/ui_qt/settings/paths.hpp

@@ -0,0 +1,49 @@
+class PathSettingsWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *panel;
+    QVBoxLayout *layout;
+      QLabel *title;
+      QLabel *gameLabel;
+      QHBoxLayout *games;
+        QLineEdit *gamePath;
+        QPushButton *gameSelect;
+        QPushButton *gameDefault;
+      QLabel *saveLabel;
+      QHBoxLayout *saves;
+        QLineEdit *savePath;
+        QPushButton *saveSelect;
+        QPushButton *saveDefault;
+      QLabel *patchLabel;
+      QHBoxLayout *patches;
+        QLineEdit *patchPath;
+        QPushButton *patchSelect;
+        QPushButton *patchDefault;
+      QLabel *cheatLabel;
+      QHBoxLayout *cheats;
+        QLineEdit *cheatPath;
+        QPushButton *cheatSelect;
+        QPushButton *cheatDefault;
+      QLabel *dataLabel;
+      QHBoxLayout *data;
+        QLineEdit *dataPath;
+        QPushButton *dataSelect;
+        QPushButton *dataDefault;
+      QWidget *spacer;
+
+  void setup();
+  void syncUi();
+
+public slots:
+  void selectGamePath();
+  void defaultGamePath();
+  void selectSavePath();
+  void defaultSavePath();
+  void selectPatchPath();
+  void defaultPatchPath();
+  void selectCheatPath();
+  void defaultCheatPath();
+  void selectDataPath();
+  void defaultDataPath();
+} *winPathSettings;

tools/bsnes/ui_qt/settings/settings.cpp

@@ -0,0 +1,84 @@
+#include "video.cpp"
+#include "audio.cpp"
+#include "input.cpp"
+#include "paths.cpp"
+#include "cheateditor.cpp"
+#include "advanced.cpp"
+
+#include "utility/inputcapture.cpp"
+#include "utility/codeeditor.cpp"
+
+void SettingsWindow::setup() {
+  window = new QWidget;
+  window->setObjectName("settings-window");
+  window->setWindowTitle("Configuration Settings");
+
+  list = new QListWidget;
+    video      = new QListWidgetItem("Video");
+    audio      = new QListWidgetItem("Audio");
+    input      = new QListWidgetItem("Input");
+    paths      = new QListWidgetItem("Paths");
+    cheatcodes = new QListWidgetItem("Cheat Codes");
+    advanced   = new QListWidgetItem("Advanced");
+  list->addItem(video);
+  list->addItem(audio);
+  list->addItem(input);
+  list->addItem(paths);
+  list->addItem(cheatcodes);
+  list->addItem(advanced);
+  list->setCurrentItem(input);  //select most frequently used panel by default
+  list->setFixedWidth(135);
+  list->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
+
+  panel = new QWidget;
+  panel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+  layout = new QHBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(Style::WidgetSpacing);
+  layout->addWidget(list);
+  layout->addWidget(panel);
+  window->setLayout(layout);
+
+  winVideoSettings    = new VideoSettingsWindow;
+  winAudioSettings    = new AudioSettingsWindow;
+  winInputSettings    = new InputSettingsWindow;
+  winPathSettings     = new PathSettingsWindow;
+  winCheatEditor      = new CheatEditorWindow;
+  winAdvancedSettings = new AdvancedSettingsWindow;
+  winInputCapture     = new InputCaptureWindow;
+  winCodeEditor       = new CodeEditorWindow;
+
+  winVideoSettings->setup();
+  winAudioSettings->setup();
+  winInputSettings->setup();
+  winPathSettings->setup();
+  winCheatEditor->setup();
+  winAdvancedSettings->setup();
+  winInputCapture->setup();
+  winCodeEditor->setup();
+
+  panelLayout = new QStackedLayout(panel);
+  panelLayout->addWidget(winVideoSettings->panel);
+  panelLayout->addWidget(winAudioSettings->panel);
+  panelLayout->addWidget(winInputSettings->panel);
+  panelLayout->addWidget(winPathSettings->panel);
+  panelLayout->addWidget(winCheatEditor->panel);
+  panelLayout->addWidget(winAdvancedSettings->panel);
+  panel->setLayout(panelLayout);
+
+  connect(list, SIGNAL(currentRowChanged(int)), this, SLOT(listChanged()));
+
+  listChanged();
+  window->setMinimumSize(600, 360);
+}
+
+void SettingsWindow::listChanged() {
+  QListWidgetItem *item = list->currentItem();
+  if(item == video)      panelLayout->setCurrentWidget(winVideoSettings->panel);
+  if(item == audio)      panelLayout->setCurrentWidget(winAudioSettings->panel);
+  if(item == input)      panelLayout->setCurrentWidget(winInputSettings->panel);
+  if(item == paths)      panelLayout->setCurrentWidget(winPathSettings->panel);
+  if(item == cheatcodes) panelLayout->setCurrentWidget(winCheatEditor->panel);
+  if(item == advanced)   panelLayout->setCurrentWidget(winAdvancedSettings->panel);
+}

tools/bsnes/ui_qt/settings/settings.hpp

@@ -0,0 +1,31 @@
+#include "video.moc"
+#include "audio.moc"
+#include "input.moc"
+#include "paths.moc"
+#include "cheateditor.moc"
+#include "advanced.moc"
+
+#include "utility/inputcapture.moc"
+#include "utility/codeeditor.moc"
+
+class SettingsWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *window;
+    QHBoxLayout *layout;
+      QListWidget *list;
+        QListWidgetItem *video;
+        QListWidgetItem *audio;
+        QListWidgetItem *input;
+        QListWidgetItem *paths;
+        QListWidgetItem *cheatcodes;
+        QListWidgetItem *advanced;
+      QWidget *panel;
+        QStackedLayout *panelLayout;
+
+  void setup();
+
+public slots:
+  void listChanged();
+} *winSettings;

tools/bsnes/ui_qt/settings/utility/codeeditor.cpp

@@ -0,0 +1,180 @@
+void CodeEditorWindow::setup() {
+  window = new QWidget;
+  window->setObjectName("code-editor-window");
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0);
+
+  descLabel = new QLabel("Description:");
+  layout->addWidget(descLabel);
+
+  description = new QTextEdit;
+  layout->addWidget(description);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  codeLabel = new QLabel("Cheat code(s):");
+  layout->addWidget(codeLabel);
+
+  codeLayout = new QHBoxLayout; {
+    codeLayout->setMargin(0);
+
+    codeList = new QListWidget;
+    codeLayout->addWidget(codeList);
+    codeLayout->addSpacing(Style::WidgetSpacing);
+
+    controls = new QVBoxLayout; {
+      controls->setMargin(0);
+
+      codeValue = new QLineEdit;
+      controls->addWidget(codeValue);
+
+      codeAdd = new QPushButton("Add Code");
+      controls->addWidget(codeAdd);
+
+      codeDelete = new QPushButton("Delete Code");
+      controls->addWidget(codeDelete);
+
+      codeDeleteAll = new QPushButton("Delete All");
+      controls->addWidget(codeDeleteAll);
+
+      spacer = new QWidget;
+      spacer->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
+      controls->addWidget(spacer);
+    }
+    codeLayout->addLayout(controls);
+  }
+  layout->addLayout(codeLayout);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  enabled = new QCheckBox("Enable this cheat code");
+  layout->addWidget(enabled);
+
+  finishControls = new QHBoxLayout; {
+    okButton = new QPushButton("Ok");
+    finishControls->addWidget(okButton);
+
+    cancelButton = new QPushButton("Cancel");
+    finishControls->addWidget(cancelButton);
+  }
+  finishControls->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(finishControls);
+
+  window->setLayout(layout);
+  window->setMinimumSize(400, 375);
+
+  connect(codeList, SIGNAL(itemSelectionChanged()), this, SLOT(listChanged()));
+  connect(codeValue, SIGNAL(textChanged(const QString&)), this, SLOT(codeChanged()));
+  connect(codeAdd, SIGNAL(released()), this, SLOT(addCodeToList()));
+  connect(codeDelete, SIGNAL(released()), this, SLOT(deleteCodeFromList()));
+  connect(codeDeleteAll, SIGNAL(released()), this, SLOT(deleteAllCodesFromList()));
+  connect(okButton, SIGNAL(released()), this, SLOT(accept()));
+  connect(cancelButton, SIGNAL(released()), this, SLOT(dismiss()));
+}
+
+void CodeEditorWindow::syncUi() {
+  //only activate add button when code is valid
+  string code = codeValue->text().toUtf8().data();
+  Cheat::cheat_t temp;
+  bool valid = cheat.decode(code, temp);
+  codeAdd->setEnabled(valid);
+
+  //only activate delete button when a code is selected
+  QListWidgetItem *item = codeList->currentItem();
+  codeDelete->setEnabled(item && item->isSelected());
+
+  //only activate delete all / ok buttons when there are one or more codes entered
+  codeDeleteAll->setEnabled(codeList->count() > 0);
+  okButton->setEnabled(codeList->count() > 0);
+}
+
+void CodeEditorWindow::listChanged() { syncUi(); }
+void CodeEditorWindow::codeChanged() { syncUi(); }
+
+void CodeEditorWindow::addCodeToList() {
+  string code = codeValue->text().toUtf8().data();
+  Cheat::cheat_t temp;
+  if(cheat.decode(code, temp) == true) codeList->addItem(utf8() << code);
+  syncUi();
+}
+
+void CodeEditorWindow::deleteCodeFromList() {
+  int index = codeList->currentRow();
+  if(index >= 0) {
+    QListWidgetItem *item = codeList->takeItem(index);
+    delete item;
+  }
+  syncUi();
+}
+
+void CodeEditorWindow::deleteAllCodesFromList() {
+  codeList->clear();
+  syncUi();
+}
+
+void CodeEditorWindow::accept() {
+  string desc = description->toPlainText().toUtf8().data();
+  string code;
+  for(unsigned i = 0; i < codeList->count(); i++) {
+    code << (codeList->item(i)->text().toUtf8().data());
+    if(i != codeList->count() - 1) code << "+";
+  }
+
+  if(activeCode == -1) {
+    //adding a new code
+    cheat.add(enabled->isChecked(), code, desc);
+    winCheatEditor->reloadList();
+  } else if(codeList->count() > 0) {
+    //editing an existing code
+    cheat.edit(activeCode, enabled->isChecked(), code, desc);
+    winCheatEditor->updateList();
+  } else {
+    //deleting an existing code
+    cheat.remove(activeCode);
+    winCheatEditor->reloadList();
+  }
+
+  dismiss();
+}
+
+void CodeEditorWindow::dismiss() {
+  activeCode = -1;
+  window->hide();
+}
+
+void CodeEditorWindow::addCode() {
+  activeCode = -1;
+  description->setPlainText("");
+  codeList->clear();
+  codeValue->setText("");
+  enabled->setCheckState(Qt::Unchecked);
+  showWindow("Add New Cheat Code");
+}
+
+void CodeEditorWindow::editCode(unsigned code) {
+  activeCode = code;
+  codeList->clear();
+  codeValue->setText("");
+
+  Cheat::cheat_t item;
+  cheat.get(activeCode, item);
+
+  description->setPlainText(utf8() << item.desc);
+
+  lstring part;
+  part.split("+", item.code);
+
+  for(unsigned i = 0; i < item.count; i++) codeList->addItem(utf8() << part[i]);
+  enabled->setCheckState(item.enabled ? Qt::Checked : Qt::Unchecked);
+  showWindow("Edit Existing Cheat Code");
+}
+
+void CodeEditorWindow::showWindow(const char *title) {
+  syncUi();
+  window->setWindowTitle(title);
+  utility.showCentered(window);
+}
+
+CodeEditorWindow::CodeEditorWindow() {
+  activeCode = -1;
+}

tools/bsnes/ui_qt/settings/utility/codeeditor.hpp

@@ -0,0 +1,43 @@
+class CodeEditorWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *window;
+    QVBoxLayout *layout;
+      QLabel *descLabel;
+      QTextEdit *description;
+      QLabel *codeLabel;
+      QHBoxLayout *codeLayout;
+        QListWidget *codeList;
+        QVBoxLayout *controls;
+          QLineEdit *codeValue;
+          QPushButton *codeAdd;
+          QPushButton *codeDelete;
+          QPushButton *codeDeleteAll;
+          QWidget *spacer;
+      QCheckBox *enabled;
+      QHBoxLayout *finishControls;
+        QPushButton *okButton;
+        QPushButton *cancelButton;
+
+  void setup();
+  void syncUi();
+  void addCode();
+  void editCode(unsigned code);
+  CodeEditorWindow();
+
+public slots:
+  void listChanged();
+  void codeChanged();
+  void addCodeToList();
+  void deleteCodeFromList();
+  void deleteAllCodesFromList();
+  void accept();
+  void dismiss();
+
+private:
+  signed activeCode;
+  void showWindow(const char *title);
+
+  friend class CheatEditorWindow;
+} *winCodeEditor;

tools/bsnes/ui_qt/settings/utility/inputcapture.cpp

@@ -0,0 +1,454 @@
+void InputCaptureWindow::setup() {
+  window = new Window;
+  window->setObjectName("input-capture-window");
+  window->setWindowTitle("Input Capture");
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0);
+
+  hlayout = new QHBoxLayout;
+  hlayout->setSpacing(Style::WidgetSpacing); {
+    title = new QLabel;
+    hlayout->addWidget(title, 0, Qt::AlignTop);
+
+    mouseAxes = new QPushButton("  Assign Mouse Axis  ");
+    mouseAxes->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    hlayout->addWidget(mouseAxes, 0, Qt::AlignTop);
+
+    mouseButtons = new QPushButton("  Assign Mouse Button  ");
+    mouseButtons->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    hlayout->addWidget(mouseButtons, 0, Qt::AlignTop);
+  }
+  layout->addLayout(hlayout);
+
+  imageSpacer = new QWidget;
+  imageSpacer->setFixedSize(Style::WidgetSpacing, Style::WidgetSpacing);
+  layout->addWidget(imageSpacer);
+
+  imageWidget = new ImageWidget;
+  layout->addWidget(imageWidget, 0, Qt::AlignHCenter);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  window->setLayout(layout);
+  connect(mouseAxes, SIGNAL(released()), this, SLOT(assignMouseAxis()));
+  connect(mouseButtons, SIGNAL(released()), this, SLOT(assignMouseButton()));
+
+  winInputMouseCaptureWindow = new InputMouseCaptureWindow;
+  winInputMouseCaptureWindow->setup();
+
+  winInputCalibration = new InputCalibrationWindow;
+  winInputCalibration->setup();
+}
+
+void InputCaptureWindow::activate(InputObject *object) {
+  if(!activeGroup) window->hide();
+
+  utf8 info;
+  info << "<b>ID:</b> ";
+  if(object->parent) {
+    InputDevice *device = dynamic_cast<InputDevice*>(object->parent);
+    if(device) info << "Controller port " << (int)(device->port + 1) << " <b>::</b> ";
+    else info << "User interface <b>::</b> ";
+    info << object->parent->name << " <b>::</b> ";
+  }
+  info << object->name << "<br>";
+
+  activeObject = object;
+  if(activeObject->type == InputObject::Button) {
+    mouseAxes->hide();
+    mouseButtons->show();
+
+    info << "Press any key or button to assign to this ID.";
+  } else /*(activeObject->type == InputObject::Axis)*/ {
+    mouseAxes->show();
+    mouseButtons->hide();
+
+    info << "Move any axis to assign to this ID.";
+  }
+
+  if(dynamic_cast<Joypad*>(activeObject->parent)) {
+    imageSpacer->show();
+    imageWidget->setFixedSize(480, 210);
+    imageWidget->show();
+  } else {
+    imageSpacer->hide();
+    imageWidget->hide();
+  }
+
+  title->setText(info);
+  utility.showCentered(window);
+}
+
+void InputCaptureWindow::activate(InputGroup *group) {
+  activeGroup = group;
+  groupIndex = 0;
+  window->hide();
+  activate((*activeGroup)[groupIndex]);
+}
+
+void InputCaptureWindow::inputEvent(uint16_t code, bool forceAssign /* = false */) {
+  if(!activeObject || inputLock == true) return;
+
+  //input polling is global, need to block mouse actions that may be UI interactions.
+  //custom controls on window allow mouse assignment instead.
+  if(forceAssign == false) {
+    if(winInputMouseCaptureWindow->window->isActiveWindow()) {
+      winInputMouseCaptureWindow->inputEvent(code);
+      return;
+    }
+    if(!window->isActiveWindow()) return;
+
+    //get as much info as possible about this code
+    InputCode::type_t type = InputCode::type(code);
+    InputCode::axistype_t axisType = InputCode::axisType(code);
+    int joypadNumber = InputCode::joypadNumber(code);
+    int16_t state = inputManager.state(code);
+    unsigned distance = abs(state - inputManager.lastState(code));
+
+    if(type == InputCode::JoypadHat) {
+      //hats can be in any of nine clock-wise states (4x direct, 4x angled and centered.)
+      //only map when hat is moved to an explicit direction.
+      if(state != joypad<>::hat_up   && state != joypad<>::hat_down
+      && state != joypad<>::hat_left && state != joypad<>::hat_right) return;
+    }
+
+    if(type == InputCode::JoypadAxis) {
+      //require a degree of resistance to prevent accidental mapping
+      if(axisType == InputCode::Stick) {
+        //require axis to be pressed almost completely toward a specific direction
+        if(state > -28672 && state < +28672) return;
+      } else if(axisType == InputCode::Trigger) {
+        //require trigger to be at least 75% pressed down
+        if(state > -16384) return;
+      } else {
+        //invalid axis type: most likely the controller has yet to be calibrated
+        if(joypadNumber < 0) return;  //should never occur
+
+        //some analog triggers report phantom motion even when user does not touch gamepad
+        if(distance < 64) return;  //require some degree of force to trigger calibration
+        if(state > -8192 && state < +8192) return;  //ignore center motion
+
+        if(inputManager.calibrated(joypadNumber) == false) {
+          winInputCalibration->activate(joypadNumber);
+        }
+
+        //block assignment until controller is fully calibrated
+        return;
+      }
+    }
+
+    if(activeObject->type == InputObject::Axis) {
+      if(type == InputCode::KeyboardButton
+      || type == InputCode::MouseAxis
+      || type == InputCode::MouseButton
+      || type == InputCode::JoypadHat
+      || type == InputCode::JoypadButton
+      ) return;
+
+      //uni-directional trigger cannot map to bi-directional axis
+      if(type == InputCode::JoypadAxis && axisType == InputCode::Trigger) return;
+    }
+
+    if(activeObject->type == InputObject::Button) {
+      if(type == InputCode::MouseAxis
+      || type == InputCode::MouseButton
+      ) return;
+
+      //only capture on button press, not release
+      if(type != InputCode::JoypadAxis && state == false) return;
+    }
+
+    //if assigning a complete controller set, ensure requested key has not been assigned
+    //to a previous entry in the group already. this prevents slow motion of joypad axes
+    //from assigning the same value to multiple entries in rapid succession.
+    if(activeGroup && groupIndex > 0) {
+      for(unsigned i = 0; i < groupIndex; i++) {
+        if(code == (*activeGroup)[i]->code) {
+          //joypad hats and axes have multiple states, and are differentiated by modifier.
+          //allow mapping only if requested modifier is unique.
+          if(type == InputCode::JoypadHat) {
+            if(state == joypad<>::hat_up    && (*activeGroup)[i]->modifier == InputObject::Up   ) return;
+            if(state == joypad<>::hat_down  && (*activeGroup)[i]->modifier == InputObject::Down ) return;
+            if(state == joypad<>::hat_left  && (*activeGroup)[i]->modifier == InputObject::Left ) return;
+            if(state == joypad<>::hat_right && (*activeGroup)[i]->modifier == InputObject::Right) return;
+          } else if(type == InputCode::JoypadAxis) {
+            if(axisType == InputCode::Stick) {
+              if(state <  0 && (*activeGroup)[i]->modifier == InputObject::Lo) return;
+              if(state >= 0 && (*activeGroup)[i]->modifier == InputObject::Hi) return;
+            } else if(axisType == InputCode::Trigger) {
+              if((*activeGroup)[i]->modifier == InputObject::Trigger) return;
+            }
+          } else {
+            //this code has already been used, do not map it
+            return;
+          }
+        }
+      }
+    }
+  }
+
+  //bind code and update GUI input assignment list
+  activeObject->bind(code);
+  winInputSettings->updateList();
+  activeObject = 0;
+
+  //ignore multiple simultaneous state changes.
+  //this helps with joypads that only activate
+  //analog inputs after the first button press.
+  inputLock = true;
+  for(unsigned i = 0; i < 2; i++) inputManager.refresh();
+  inputLock = false;
+
+  if(!activeGroup) {
+    window->hide();
+    winInputMouseCaptureWindow->window->hide();
+  } else {
+    //try and map the next code in this input group
+    groupIndex++;
+    if(groupIndex < activeGroup->size()) {
+      activate((*activeGroup)[groupIndex]);
+    } else {
+      //all group codes mapped
+      window->hide();
+      winInputMouseCaptureWindow->window->hide();
+      activeGroup = 0;
+    }
+  }
+}
+
+void InputCaptureWindow::assignMouseAxis() {
+  //refresh input state so that mouse release event (from SIGNAL(released())
+  //is not sent immediately after window is visible.
+  inputManager.refresh();
+  winInputMouseCaptureWindow->activate(InputMouseCaptureWindow::AxisMode);
+}
+
+void InputCaptureWindow::assignMouseButton() {
+  inputManager.refresh();
+  winInputMouseCaptureWindow->activate(InputMouseCaptureWindow::ButtonMode);
+}
+
+InputCaptureWindow::InputCaptureWindow() {
+  activeObject = 0;
+  activeGroup = 0;
+  groupIndex = 0;
+  inputLock = false;
+}
+
+void InputCaptureWindow::Window::closeEvent(QCloseEvent*) {
+  //window closed by user, cancel key assignment
+  winInputCapture->activeObject = 0;
+  winInputCapture->activeGroup = 0;
+}
+
+void InputCaptureWindow::ImageWidget::paintEvent(QPaintEvent*) {
+  //currently, there is only an image available for the joypad.
+  //in the future, this routine should determine which type of
+  //image to draw via activeObject->parent's derived class type.
+  QPainter painter(this);
+  QPixmap pixmap(":/joypad.png");
+  painter.drawPixmap(0, 0, pixmap);
+}
+
+//=======================
+//InputMouseCaptureWindow
+//=======================
+
+void InputMouseCaptureWindow::setup() {
+  window = new QWidget;
+  window->setObjectName("input-mouse-capture-window");
+  window->setWindowTitle("Mouse Input Capture");
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0);
+
+  info = new QLabel;
+  layout->addWidget(info);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  captureBox = new QLabel("[ capture box ]");
+  captureBox->setObjectName("mouse-capture-box");
+  captureBox->setAlignment(Qt::AlignCenter);
+  captureBox->setFixedHeight(120);
+  layout->addWidget(captureBox);
+
+  buttonLayout = new QHBoxLayout;
+  buttonLayout->setSpacing(Style::WidgetSpacing); {
+    xAxis = new QPushButton("X-axis");
+    buttonLayout->addWidget(xAxis);
+
+    yAxis = new QPushButton("Y-axis");
+    buttonLayout->addWidget(yAxis);
+  }
+  layout->addLayout(buttonLayout);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  window->setLayout(layout);
+  connect(xAxis, SIGNAL(released()), this, SLOT(assignAxisX()));
+  connect(yAxis, SIGNAL(released()), this, SLOT(assignAxisY()));
+}
+
+void InputMouseCaptureWindow::activate(InputMouseCaptureWindow::Mode mode_) {
+  window->hide();
+  activeMode = mode_;
+
+  if(activeMode == AxisMode) {
+    captureBox->hide();
+    xAxis->show();
+    yAxis->show();
+
+    info->setText(utf8()
+    << "To assign a mouse axis to this ID, please click the desired axis button below,<br>"
+    << "using the mouse that you want the axis to be assigned to."
+    );
+
+    activeMouse = -1;
+  } else /*(activeMode == ButtonMode) */ {
+    captureBox->show();
+    xAxis->hide();
+    yAxis->hide();
+
+    info->setText(utf8()
+    << "To assign a mouse button to this ID, please place the mouse you wish to map<br>"
+    << "over the capture box below, and then click any mouse button to set assignment."
+    );
+  }
+
+  utility.showCentered(window);
+}
+
+//this is only called when isActiveWindow() == true
+void InputMouseCaptureWindow::inputEvent(uint16_t code) {
+  InputCode::type_t type = InputCode::type(code);
+  int16_t state = inputManager.state(code);
+
+  if(activeMode == AxisMode) {
+    //when pressing down mouse button (eg to select "X-axis" or "Y-axis"),
+    //record mouse index for later assignment
+    if(type == InputCode::MouseButton && state == true) {
+      activeMouse = InputCode::mouseNumber(code);
+      return;
+    }
+  } else if(activeMode == ButtonMode) {
+    //if this is a mouse button that is being released ...
+    if(type == InputCode::MouseButton && state == false) {
+      //ensure button was clicked inside active capture box
+      QRect windowRect = window->geometry();
+      QRect widgetRect = captureBox->geometry();
+      unsigned wx = windowRect.left() + widgetRect.left();
+      unsigned wy = windowRect.top() + widgetRect.top();
+      unsigned px = QCursor::pos().x();
+      unsigned py = QCursor::pos().y();
+
+      if(px < wx || px >= wx + widgetRect.size().width() ) return;
+      if(py < wy || py >= wy + widgetRect.size().height()) return;
+
+      winInputCapture->inputEvent(code, true);
+      return;
+    }
+  }
+}
+
+void InputMouseCaptureWindow::assignAxisX() {
+  if(activeMouse >= 0) {
+    winInputCapture->inputEvent(mouse<>::index(activeMouse, mouse<>::x), true);
+  }
+}
+
+void InputMouseCaptureWindow::assignAxisY() {
+  if(activeMouse >= 0) {
+    winInputCapture->inputEvent(mouse<>::index(activeMouse, mouse<>::y), true);
+  }
+}
+
+//====================
+//InputCalibrateWindow
+//====================
+
+//background:
+//===========
+//HID devices work by sending device state *changes* only. what this means is that when an application is started,
+//it does not know the current state of said device. the keyboard and mouse are exceptions, as the OS globally
+//tracks their states. but this does apply to joypads. once a button is pressed, or an axis is moved, the entire
+//joypad state will be sent in a message, that APIs such as DirectInput and SDL will buffer.
+//
+//to complicate matters, recent joypads have added pressure-sensitive buttons (triggers), in addition to the
+//existing analog sticks. but this functionality was not extended to the USB HID state or to various platform
+//input APIs. instead, they are treated exactly like axes.
+//
+//however, an application needs to treat these two input types distinctly:
+//a stick is a bi-directional input. the stick starts off centered, and can be moved left or right, or up or down.
+//a trigger is a uni-directional input. it can only be pushed down.
+//
+//a stick's default, unpressed state is centered (0), whereas a trigger's default state is fully depressed (+32767.)
+//but because the default state is not available until the user presses a button on a joypad, it is not possible to
+//calibrate a joypad on startup. all axes will report a value of 0, even if buttons are depressed.
+//
+//thusly, this class is needed. it will spawn a window upon the first attempt to map a joypad axis after startup.
+//by the point this window appears, an axis must have been moved, so the joypad state is now valid. but since it's
+//not possible to tell which button was pressed or which axis was moved, it's possible the axis that we're trying to
+//map was moved. so querying its state now might result in improper mapping. so instead, this window is shown, and
+//the user is asked not to press any buttons or move any axes. after hitting okay to confirm the joypad is idle,
+//the joypad can finally be calibrated properly.
+//
+//upon assignment, the calibration data is appended to the input assignment value (eg "joypad00.axis00::trigger"),
+//so that calibration is not necessary every time the emulator is run -- only when modifying input mapping on an axis.
+
+void InputCalibrationWindow::activate(unsigned joy) {
+  //do not override an already active calibration window
+  if(window->isVisible()) return;
+
+  activeJoypad = joy;
+  info->setText(utf8()
+  << "Joypad #" << joy << " needs to be calibrated before it can be mapped. "
+  << "Please ensure that<br>no buttons are pressed, "
+  << "and all axes are centered before pressing okay."
+  );
+
+  utility.showCentered(window);
+  ok->setFocus();
+}
+
+void InputCalibrationWindow::setup() {
+  window = new Window;
+  window->setObjectName("input-calibrate-window");
+  window->setWindowTitle("Joypad Calibration");
+
+  layout = new QVBoxLayout;
+  layout->setMargin(Style::WindowMargin);
+  layout->setSpacing(0);
+
+  info = new QLabel;
+  layout->addWidget(info);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  ok = new QPushButton("Ok");
+  layout->addWidget(ok);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  window->setLayout(layout);
+  connect(ok, SIGNAL(released()), this, SLOT(dismiss()));
+}
+
+void InputCalibrationWindow::dismiss() {
+  window->hide();
+  if(activeJoypad != -1) {
+    inputManager.calibrate(activeJoypad);
+    activeJoypad = -1;
+  }
+}
+
+void InputCalibrationWindow::Window::closeEvent(QCloseEvent*) {
+  winInputCalibration->dismiss();
+}

tools/bsnes/ui_qt/settings/utility/inputcapture.hpp

@@ -0,0 +1,88 @@
+class InputCaptureWindow : public QObject {
+  Q_OBJECT
+
+public:
+  struct Window : public QWidget {
+    void closeEvent(QCloseEvent*);
+  } *window;
+    QVBoxLayout *layout;
+      QHBoxLayout *hlayout;
+        QLabel *title;
+        QPushButton *mouseAxes;
+        QPushButton *mouseButtons;
+      QWidget *imageSpacer;
+      struct ImageWidget : public QWidget {
+        void paintEvent(QPaintEvent*);
+      } *imageWidget;
+      QWidget *spacer;
+
+  void setup();
+  void activate(InputObject *object);
+  void activate(InputGroup *group);
+  void inputEvent(uint16_t code, bool forceAssign = false);
+  InputCaptureWindow();
+
+public slots:
+  void assignMouseAxis();
+  void assignMouseButton();
+
+private:
+  InputObject *activeObject;
+  InputGroup *activeGroup;
+  unsigned groupIndex;
+  bool inputLock;
+
+  friend class InputCaptureWindow::Window;
+} *winInputCapture;
+
+class InputMouseCaptureWindow : public QObject {
+  Q_OBJECT
+
+public:
+  enum Mode { AxisMode, ButtonMode };
+
+  QWidget *window;
+    QVBoxLayout *layout;
+      QLabel *info;
+      QLabel *captureBox;
+      QHBoxLayout *buttonLayout;
+        QPushButton *xAxis;
+        QPushButton *yAxis;
+      QWidget *spacer;
+
+  void setup();
+  void activate(Mode);
+  void inputEvent(uint16_t code);
+
+public slots:
+  void assignAxisX();
+  void assignAxisY();
+
+private:
+  Mode activeMode;
+  signed activeMouse;
+} *winInputMouseCaptureWindow;
+
+class InputCalibrationWindow : public QObject {
+  Q_OBJECT
+
+public:
+  struct Window : public QWidget {
+    void closeEvent(QCloseEvent*);
+  } *window;
+    QVBoxLayout *layout;
+      QLabel *info;
+      QPushButton *ok;
+      QWidget *spacer;
+
+  void setup();
+  void activate(unsigned joy);
+
+public slots:
+  void dismiss();
+
+private:
+  int activeJoypad;
+
+  friend class InputCalibrationWindow::Window;
+} *winInputCalibration;

tools/bsnes/ui_qt/settings/video.cpp

@@ -0,0 +1,119 @@
+void VideoSettingsWindow::setup() {
+  panel = new QWidget;
+
+  layout = new QVBoxLayout;
+  layout->setMargin(0);
+  layout->setSpacing(0);
+
+  title = new QLabel("Video Settings");
+  title->setProperty("class", "title");
+  layout->addWidget(title);
+
+  sliders = new QGridLayout; {
+    lcontrast = new QLabel("Contrast adjust: +100%");
+    sliders->addWidget(lcontrast, 0, 0);
+
+    contrast = new QSlider(Qt::Horizontal);
+    contrast->setMinimum(-95);
+    contrast->setMaximum(+95);
+    sliders->addWidget(contrast, 0, 1);
+
+    lbrightness = new QLabel("Brightness adjust: +100%");
+    sliders->addWidget(lbrightness, 1, 0);
+
+    brightness = new QSlider(Qt::Horizontal);
+    brightness->setMinimum(-95);
+    brightness->setMaximum(+95);
+    sliders->addWidget(brightness, 1, 1);
+
+    lgamma = new QLabel("Gamma adjust: +100%");
+    sliders->addWidget(lgamma, 2, 0);
+
+    gamma = new QSlider(Qt::Horizontal);
+    gamma->setMinimum(-95);
+    gamma->setMaximum(+95);
+    sliders->addWidget(gamma, 2, 1);
+  }
+  sliders->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(sliders);
+  layout->addSpacing(Style::WidgetSpacing);
+
+  options = new QHBoxLayout; {
+    options->setMargin(0);
+
+    enableGammaRamp = new QCheckBox("Simulate NTSC TV gamma ramp");
+    enableGammaRamp->setToolTip("Lower monitor gamma to more accurately match a CRT television");
+    options->addWidget(enableGammaRamp);
+
+    enableNtscMergeFields = new QCheckBox("Merge scan fields for NTSC filter");
+    enableNtscMergeFields->setToolTip(
+      "NTSC filter requires 60hz w/video sync to simulate alternating field effect.\n"
+      "If this is not the case, this option should be enabled to prevent excessive video shimmering."
+    );
+    options->addWidget(enableNtscMergeFields);
+  }
+  options->setSpacing(Style::WidgetSpacing);
+  layout->addLayout(options);
+
+  spacer = new QWidget;
+  spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+  layout->addWidget(spacer);
+
+  panel->setLayout(layout);
+  connect(contrast, SIGNAL(valueChanged(int)), this, SLOT(contrastAdjust(int)));
+  connect(brightness, SIGNAL(valueChanged(int)), this, SLOT(brightnessAdjust(int)));
+  connect(gamma, SIGNAL(valueChanged(int)), this, SLOT(gammaAdjust(int)));
+  connect(enableGammaRamp, SIGNAL(stateChanged(int)), this, SLOT(gammaRampToggle(int)));
+  connect(enableNtscMergeFields, SIGNAL(stateChanged(int)), this, SLOT(ntscFieldsToggle(int)));
+
+  syncUi();
+}
+
+void VideoSettingsWindow::syncUi() {
+  int n;
+
+  n = config.video.contrastAdjust;
+  lcontrast->setText(utf8() << "Contrast adjust: " << (n > 0 ? "+" : "") << n << "%");
+  contrast->setSliderPosition(n);
+
+  n = config.video.brightnessAdjust;
+  lbrightness->setText(utf8() << "Brightness adjust: " << (n > 0 ? "+" : "") << n << "%");
+  brightness->setSliderPosition(n);
+
+  n = config.video.gammaAdjust;
+  lgamma->setText(utf8() << "Gamma adjust: " << (n > 0 ? "+" : "") << n << "%");
+  gamma->setSliderPosition(n);
+
+  enableGammaRamp->setChecked(config.video.enableGammaRamp);
+  enableNtscMergeFields->setChecked(config.video.enableNtscMergeFields);
+}
+
+void VideoSettingsWindow::gammaRampToggle(int state) {
+  config.video.enableGammaRamp = (state == Qt::Checked);
+  syncUi();
+  utility.updateColorFilter();
+}
+
+void VideoSettingsWindow::ntscFieldsToggle(int state) {
+  config.video.enableNtscMergeFields = (state == Qt::Checked);
+  syncUi();
+  utility.updateSoftwareFilter();
+}
+
+void VideoSettingsWindow::contrastAdjust(int value) {
+  config.video.contrastAdjust = value;
+  syncUi();
+  utility.updateColorFilter();
+}
+
+void VideoSettingsWindow::brightnessAdjust(int value) {
+  config.video.brightnessAdjust = value;
+  syncUi();
+  utility.updateColorFilter();
+}
+
+void VideoSettingsWindow::gammaAdjust(int value) {
+  config.video.gammaAdjust = value;
+  syncUi();
+  utility.updateColorFilter();
+}

tools/bsnes/ui_qt/settings/video.hpp

@@ -0,0 +1,29 @@
+class VideoSettingsWindow : public QObject {
+  Q_OBJECT
+
+public:
+  QWidget *panel;
+    QVBoxLayout *layout;
+      QLabel *title;
+      QGridLayout *sliders;
+        QLabel *lcontrast;
+        QSlider *contrast;
+        QLabel *lbrightness;
+        QSlider *brightness;
+        QLabel *lgamma;
+        QSlider *gamma;
+      QHBoxLayout *options;
+        QCheckBox *enableGammaRamp;
+        QCheckBox *enableNtscMergeFields;
+      QWidget *spacer;
+
+  void setup();
+  void syncUi();
+
+public slots:
+  void gammaRampToggle(int);
+  void ntscFieldsToggle(int);
+  void contrastAdjust(int);
+  void brightnessAdjust(int);
+  void gammaAdjust(int);
+} *winVideoSettings;

tools/bsnes/ui_qt/ui.cpp

@@ -0,0 +1,122 @@
+#include "base/main.moc"
+#include "base/loader.moc"
+#include "base/htmlviewer.moc"
+#include "base/about.moc"
+#include "settings/settings.moc"
+
+#include "base/main.cpp"
+#include "base/loader.cpp"
+#include "base/htmlviewer.cpp"
+#include "base/about.cpp"
+#include "settings/settings.cpp"
+
+void Application::init() {
+  if(config.system.crashedOnLastRun == true) {
+    //emulator crashed on last run, disable all drivers
+    QMessageBox::warning(0, "bsnes Crash Notification", utf8() <<
+    "<p><b>Warning:</b><br>bsnes crashed while attempting to initialize device "
+    "drivers the last time it was run.</p>"
+    "<p>To prevent this from occurring again, all drivers have been disabled. Please "
+    "go to Settings->Configuration->Advanced and choose new driver settings, and then "
+    "restart the emulator for the changes to take effect. <i>Video, audio and input "
+    "will not work until you do this!</i></p>"
+    "<p><b>Settings that caused failure on last run:</b><br>"
+    << "Video driver: " << config.system.video << "<br>"
+    << "Audio driver: " << config.system.audio << "<br>"
+    << "Input driver: " << config.system.input << "<br></p>"
+    );
+
+    config.system.video = "None";
+    config.system.audio = "None";
+    config.system.input = "None";
+  }
+
+  if(config.system.video == "") config.system.video = video.default_driver();
+  if(config.system.audio == "") config.system.audio = audio.default_driver();
+  if(config.system.input == "") config.system.input = input.default_driver();
+
+  winMain = new MainWindow;
+  winMain->setup();
+
+  winLoader = new LoaderWindow;
+  winLoader->setup();
+
+  winHtmlViewer = new HtmlViewerWindow;
+  winHtmlViewer->setup();
+
+  winAbout = new AboutWindow;
+  winAbout->setup();
+
+  //window must be onscreen and visible before initializing video interface
+  utility.updateSystemState();
+  utility.resizeMainWindow();
+  utility.updateFullscreenState();
+  application.processEvents();
+
+  winSettings = new SettingsWindow;
+  winSettings->setup();
+
+  //if emulator crashes while initializing drivers, next run will disable them all.
+  //this will allow user to choose different driver settings.
+  config.system.crashedOnLastRun = true;
+  config.save(configFilename);
+
+  video.driver(config.system.video);
+  video.set(Video::Handle, (uintptr_t)winMain->canvas->winId());
+  if(video.init() == false) {
+    QMessageBox::warning(0, "bsnes", utf8() <<
+      "<p><b>Warning:</b> " << config.system.video << " video driver failed to initialize. "
+      "Video driver has been disabled.</p>"
+      "<p>Please go to Settings->Configuration->Advanced and choose a different driver, and "
+      "then restart the emulator for the changes to take effect.</p>"
+    );
+    video.driver("None");
+    video.init();
+  }
+
+  audio.driver(config.system.audio);
+  audio.set(Audio::Handle, (uintptr_t)winMain->canvas->winId());
+  audio.set(Audio::Frequency, config.audio.outputFrequency);
+  audio.set(Audio::Latency, config.audio.latency);
+  audio.set(Audio::Volume, config.audio.volume);
+  if(audio.init() == false) {
+    QMessageBox::warning(0, "bsnes", utf8() <<
+      "<p><b>Warning:</b> " << config.system.audio << " audio driver failed to initialize. "
+      "Audio driver has been disabled.</p>"
+      "<p>Please go to Settings->Configuration->Advanced and choose a different driver, and "
+      "then restart the emulator for the changes to take effect.</p>"
+    );
+    audio.driver("None");
+    audio.init();
+  }
+
+  input.driver(config.system.input);
+  input.set(Input::Handle, (uintptr_t)winMain->canvas->winId());
+  if(input.init() == false) {
+    QMessageBox::warning(0, "bsnes", utf8() <<
+      "<p><b>Warning:</b> " << config.system.input << " input driver failed to initialize. "
+      "Input driver has been disabled.</p>"
+      "<p>Please go to Settings->Configuration->Advanced and choose a different driver, and "
+      "then restart the emulator for the changes to take effect.</p>"
+    );
+    input.driver("None");
+    input.init();
+  }
+
+  //didn't crash, note this in the config file now in case a different kind of crash occurs later
+  config.system.crashedOnLastRun = false;
+  config.save(configFilename);
+
+  inputManager.bind();
+  inputManager.refresh();
+  inputManager.refresh();
+  inputManager.onInput = bind(&Utility::inputEvent, &utility);
+
+  utility.updateAvSync();
+  utility.updateVideoMode();
+  utility.updateColorFilter();
+  utility.updateHardwareFilter();
+  utility.updateSoftwareFilter();
+  utility.updateEmulationSpeed();
+  utility.updateControllers();
+}

tools/bsnes/ui_qt/utility/cartridge.cpp

@@ -0,0 +1,163 @@
+string Utility::selectCartridge() {
+  audio.clear();
+  QString filename = QFileDialog::getOpenFileName(0,
+    "Load Cartridge",
+    utf8() << (snes.config.path.rom != "" ? snes.config.path.rom : snes.config.path.current),
+    "SNES images (*.smc *.sfc *.swc *.fig *.bs *.st"
+    #if defined(GZIP_SUPPORT)
+    " *.zip *.gz"
+    #endif
+    #if defined(JMA_SUPPORT)
+    " *.jma"
+    #endif
+    ");;"
+    "All files (*)"
+  );
+  return string() << filename.toUtf8().constData();
+}
+
+string Utility::selectFolder(const char *title) {
+  audio.clear();
+  QString pathname = QFileDialog::getExistingDirectory(0,
+    title, utf8() << snes.config.path.current,
+    QFileDialog::ShowDirsOnly);
+  return string() << pathname.toUtf8().constData();
+}
+
+void Utility::loadCartridge(const char *filename) {
+  switch(cartridge.detect_image_type(filename)) {
+    case Cartridge::TypeNormal:          loadCartridgeNormal(filename);                                          break;
+    case Cartridge::TypeBsxSlotted:      winLoader->loadBsxSlottedCartridge(filename, "");                       break;
+    case Cartridge::TypeBsxBios:         winLoader->loadBsxCartridge(filename, "");                              break;
+    case Cartridge::TypeBsx:             winLoader->loadBsxCartridge(snes.config.path.bsx, filename);            break;
+    case Cartridge::TypeSufamiTurboBios: winLoader->loadSufamiTurboCartridge(filename, "", "");                  break;
+    case Cartridge::TypeSufamiTurbo:     winLoader->loadSufamiTurboCartridge(snes.config.path.st, filename, ""); break;
+  }
+}
+
+bool Utility::loadCartridgeNormal(const char *base) {
+  if(!*base) return false;
+  unloadCartridge();
+  cartridge.load_normal(base);
+  modifySystemState(LoadCartridge);
+  return true;
+}
+
+bool Utility::loadCartridgeBsxSlotted(const char *base, const char *slot) {
+  if(!*base) return false;
+  unloadCartridge();
+  cartridge.load_bsx_slotted(base, slot);
+  modifySystemState(LoadCartridge);
+  return true;
+}
+
+bool Utility::loadCartridgeBsx(const char *base, const char *slot) {
+  if(!*base) return false;
+  unloadCartridge();
+  cartridge.load_bsx(base, slot);
+  modifySystemState(LoadCartridge);
+  return true;
+}
+
+bool Utility::loadCartridgeSufamiTurbo(const char *base, const char *slotA, const char *slotB) {
+  if(!*base) return false;
+  unloadCartridge();
+  cartridge.load_sufami_turbo(base, slotA, slotB);
+  modifySystemState(LoadCartridge);
+  return true;
+}
+
+void Utility::unloadCartridge() {
+  if(cartridge.loaded()) {
+    cartridge.unload();
+    modifySystemState(UnloadCartridge);
+  }
+}
+
+void Utility::modifySystemState(system_state_t state) {
+  video.clear();
+  audio.clear();
+
+  switch(state) {
+    case LoadCartridge: {
+      //must call cartridge.load_cart_...() before calling modifySystemState(LoadCartridge)
+      if(cartridge.loaded() == false) break;
+
+      application.power = true;
+      application.pause = false;
+      snes.power();
+
+      //warn if unsupported hardware detected
+      string chip;
+      if(cartridge.has_superfx())    chip = "SuperFX";
+      else if(cartridge.has_sa1())   chip = "SA-1";
+      else if(cartridge.has_st011()) chip = "ST011";
+      else if(cartridge.has_st018()) chip = "ST018";
+      else if(cartridge.has_dsp3())  chip = "DSP-3";
+      if(chip != "") {
+        QMessageBox::warning(winMain->window, "Warning", utf8()
+        << "<p><b>Warning:</b><br>Unsupported " << chip << " chip detected. "
+        << "It is unlikely that this title will work properly.</p>");
+      }
+
+      showMessage(utf8()
+      << "Loaded " << cartridge.name()
+      << (cartridge.patched() ? ", and applied UPS patch." : "."));
+      winMain->window->setWindowTitle(utf8() << BSNES_TITLE << " - " << cartridge.name());
+    } break;
+
+    case UnloadCartridge: {
+      if(cartridge.loaded() == false) break;  //no cart to unload?
+      cartridge.unload();
+
+      application.power = false;
+      application.pause = true;
+
+      showMessage(utf8() << "Unloaded " << cartridge.name() << ".");
+      winMain->window->setWindowTitle(utf8() << BSNES_TITLE);
+    } break;
+
+    case PowerOn: {
+      if(cartridge.loaded() == false || application.power == true) break;
+
+      application.power = true;
+      application.pause = false;
+      snes.power();
+
+      showMessage("Power on.");
+    } break;
+
+    case PowerOff: {
+      if(cartridge.loaded() == false || application.power == false) break;
+
+      application.power = false;
+      application.pause = true;
+
+      showMessage("Power off.");
+    } break;
+
+    case PowerCycle: {
+      if(cartridge.loaded() == false) break;
+
+      application.power = true;
+      application.pause = false;
+      snes.power();
+
+      showMessage("System power was cycled.");
+    } break;
+
+    case Reset: {
+      if(cartridge.loaded() == false || application.power == false) break;
+
+      application.pause = false;
+      snes.reset();
+
+      showMessage("System was reset.");
+    } break;
+  }
+
+  winMain->syncUi();
+  winCodeEditor->dismiss();
+  winCheatEditor->reloadList();
+  winCheatEditor->syncUi();
+}

tools/bsnes/ui_qt/utility/utility.cpp

@@ -0,0 +1,218 @@
+#include "cartridge.cpp"
+#include "window.cpp"
+
+//returns true if requested code is a button, and it has just been pressed down
+bool Utility::isButtonDown(uint16_t inputCode, InputObject &object) {
+  if(inputCode != object.code) return false;
+
+  if(object.codetype != InputCode::KeyboardButton
+  && object.codetype != InputCode::MouseButton
+  && object.codetype != InputCode::JoypadHat
+  && object.codetype != InputCode::JoypadAxis
+  && object.codetype != InputCode::JoypadButton) return false;
+
+  int16_t state     = inputManager.state(object.code);
+  int16_t lastState = inputManager.lastState(object.code);
+
+  if(object.codetype == InputCode::JoypadHat) {
+    switch(object.modifier) {
+      case InputObject::Up:    return (state & joypad<>::hat_up   ) && !(lastState & joypad<>::hat_up   );
+      case InputObject::Down:  return (state & joypad<>::hat_down ) && !(lastState & joypad<>::hat_down );
+      case InputObject::Left:  return (state & joypad<>::hat_left ) && !(lastState & joypad<>::hat_left );
+      case InputObject::Right: return (state & joypad<>::hat_right) && !(lastState & joypad<>::hat_right);
+    }
+  } else if(object.codetype == InputCode::JoypadAxis) {
+    switch(object.modifier) {
+      case InputObject::Lo: return (state < -16384) && !(lastState < -16384);
+      case InputObject::Hi: return (state > +16384) && !(lastState > +16384);
+      case InputObject::Trigger: return (state < 0) && !(lastState < 0);
+    }
+  } else {
+    return (state == 1) && !(lastState == 1);
+  }
+
+  return false;  //fall-through for modifier-less hats / axes
+}
+
+void Utility::inputEvent(uint16_t code) {
+  //forward key-press event
+  //(in case window is currently active and capturing a new button / axis assignment)
+  winInputCapture->inputEvent(code);
+
+  //if escape key is pressed on *any* keyboard; release the mouse if it is acquired
+  for(unsigned i = 0; i < keyboard<>::count; i++) {
+    if(code == keyboard<>::index(i, keyboard<>::escape) && inputManager.state(code) && input.acquired()) {
+      input.unacquire();
+      return;  //do not trigger other UI actions that may be bound to escape key
+    }
+  }
+
+  if(winMain->window->isActiveWindow()) {
+    bool resizeWindow = false;
+
+    if(isButtonDown(code, inputUiGeneral.loadCartridge)) {
+      string filename = selectCartridge();
+      if(filename.length() > 0) loadCartridge(filename);
+    }
+
+    if(isButtonDown(code, inputUiGeneral.pauseEmulation)) {
+      application.pause = !application.pause;
+    }
+
+    if(isButtonDown(code, inputUiGeneral.resetSystem)) {
+      modifySystemState(Reset);
+    }
+
+    if(isButtonDown(code, inputUiGeneral.powerCycleSystem)) {
+      modifySystemState(PowerCycle);
+    }
+
+    if(isButtonDown(code, inputUiGeneral.lowerSpeed)) {
+      config.system.speed--;
+      updateEmulationSpeed();
+      winMain->syncUi();
+    }
+
+    if(isButtonDown(code, inputUiGeneral.raiseSpeed)) {
+      config.system.speed++;
+      updateEmulationSpeed();
+      winMain->syncUi();
+    }
+
+    if(isButtonDown(code, inputUiGeneral.toggleCheatSystem)) {
+      if(cheat.enabled() == false) {
+        cheat.enable();
+        showMessage("Cheat system enabled.");
+      } else {
+        cheat.disable();
+        showMessage("Cheat system disabled.");
+      }
+    }
+
+    if(isButtonDown(code, inputUiGeneral.toggleFullscreen)) {
+      config.video.isFullscreen = !config.video.isFullscreen;
+      updateFullscreenState();
+      winMain->syncUi();
+    }
+
+    if(isButtonDown(code, inputUiGeneral.toggleMenu)) {
+      winMain->window->menuBar()->setVisible(!winMain->window->menuBar()->isVisibleTo(winMain->window));
+      resizeWindow = true;
+    }
+
+    if(isButtonDown(code, inputUiGeneral.toggleStatus)) {
+      winMain->window->statusBar()->setVisible(!winMain->window->statusBar()->isVisibleTo(winMain->window));
+      resizeWindow = true;
+    }
+
+    //prevent calling twice when toggleMenu == toggleStatus
+    if(resizeWindow == true) {
+      resizeMainWindow();
+    }
+
+    if(isButtonDown(code, inputUiGeneral.exitEmulator)) {
+      application.terminate = true;
+    }
+  }
+}
+
+//display message in main window statusbar area for three seconds
+void Utility::showMessage(const char *message) {
+  winMain->window->statusBar()->showMessage(utf8() << message, 3000);
+}
+
+//updates system state text at bottom-right of main window statusbar
+void Utility::updateSystemState() {
+  string text;
+
+  if(cartridge.loaded() == false) {
+    text = "No cartridge loaded";
+  } else if(application.power == false) {
+    text = "Power off";
+  } else if(application.pause == true || application.autopause == true) {
+    text = "Paused";
+  } else if(ppu.status.frames_updated == true) {
+    ppu.status.frames_updated = false;
+    text << (int)ppu.status.frames_executed;
+    text << " fps";
+  } else {
+    //nothing to update
+    return;
+  }
+
+  winMain->systemState->setText(utf8() << text);
+}
+
+void Utility::acquireMouse() {
+  if(cartridge.loaded()) {
+    if(snes.config.controller_port1 == SNES::Input::DeviceMouse
+    || snes.config.controller_port2 == SNES::Input::DeviceMouse
+    || snes.config.controller_port2 == SNES::Input::DeviceSuperScope
+    || snes.config.controller_port2 == SNES::Input::DeviceJustifier
+    || snes.config.controller_port2 == SNES::Input::DeviceJustifiers
+    ) input.acquire();
+  }
+}
+
+void Utility::unacquireMouse() {
+  input.unacquire();
+}
+
+void Utility::updateAvSync() {
+  video.set(Video::Synchronize, config.video.synchronize);
+  audio.set(Audio::Synchronize, config.audio.synchronize);
+}
+
+void Utility::updateVideoMode() {
+  if(config.video.context->region == 0) {
+    snes.video.set_mode(SNES::Video::ModeNTSC);
+  } else {
+    snes.video.set_mode(SNES::Video::ModePAL);
+  }
+}
+
+void Utility::updateColorFilter() {
+  libfilter::colortable.set_format(libfilter::Colortable::RGB888);
+  libfilter::colortable.set_contrast(config.video.contrastAdjust);
+  libfilter::colortable.set_brightness(config.video.brightnessAdjust);
+  libfilter::colortable.set_gamma(100 + config.video.gammaAdjust);
+  libfilter::colortable.enable_gamma_ramp(config.video.enableGammaRamp);
+  libfilter::colortable.update();
+}
+
+void Utility::updateHardwareFilter() {
+  video.set(Video::Filter, config.video.context->hwFilter);
+}
+
+void Utility::updateSoftwareFilter() {
+  libfilter::FilterInterface::FilterType type;
+  switch(config.video.context->swFilter) { default:
+    case 0: type = libfilter::FilterInterface::Direct;   break;
+    case 1: type = libfilter::FilterInterface::Scanline; break;
+    case 2: type = libfilter::FilterInterface::Scale2x;  break;
+    case 3: type = libfilter::FilterInterface::HQ2x;     break;
+    case 4: type = libfilter::FilterInterface::NTSC;     break;
+  }
+  libfilter::filter.set(type);
+
+  if(type == libfilter::FilterInterface::NTSC) {
+    libfilter::filter_ntsc.adjust(0, 0, 0, 0, 0, config.video.enableNtscMergeFields);
+  }
+}
+
+void Utility::updateEmulationSpeed() {
+  config.system.speed = max(0, min(4, (signed)config.system.speed));
+
+  double scale[] = { 0.50, 0.75, 1.00, 1.50, 2.00 };
+  unsigned outfreq = config.audio.outputFrequency;
+  unsigned infreq  = config.audio.inputFrequency * scale[config.system.speed] + 0.5;
+
+  audio.set(Audio::Resample, outfreq != infreq);  //only resample when necessary
+  audio.set(Audio::ResampleOutputFrequency, outfreq);
+  audio.set(Audio::ResampleInputFrequency,  infreq);
+}
+
+void Utility::updateControllers() {
+  snes.input.port_set_device(0, snes.config.controller_port1);
+  snes.input.port_set_device(1, snes.config.controller_port2);
+}

tools/bsnes/ui_qt/utility/utility.hpp

@@ -0,0 +1,37 @@
+class Utility {
+public:
+  //utility.cpp
+  bool isButtonDown(uint16_t inputCode, InputObject &object);
+  void inputEvent(uint16_t code);
+  void showMessage(const char *message);
+  void updateSystemState();
+  void acquireMouse();
+  void unacquireMouse();
+
+  void updateAvSync();
+  void updateVideoMode();
+  void updateColorFilter();
+  void updateHardwareFilter();
+  void updateSoftwareFilter();
+  void updateEmulationSpeed();
+  void updateControllers();
+
+  //cartridge.cpp
+  string selectCartridge();
+  string selectFolder(const char *title);
+  void loadCartridge(const char*);
+  bool loadCartridgeNormal(const char*);
+  bool loadCartridgeBsxSlotted(const char*, const char*);
+  bool loadCartridgeBsx(const char*, const char*);
+  bool loadCartridgeSufamiTurbo(const char*, const char *, const char*);
+  void unloadCartridge();
+
+  enum system_state_t { LoadCartridge, UnloadCartridge, PowerOn, PowerOff, PowerCycle, Reset };
+  void modifySystemState(system_state_t state);
+
+  //window.cpp
+  void showCentered(QWidget *window);
+  void updateFullscreenState();
+  void constrainSize(unsigned &x, unsigned &y, unsigned max);
+  void resizeMainWindow();
+} utility;

tools/bsnes/ui_qt/utility/window.cpp

@@ -0,0 +1,123 @@
+//show specified window in the center of the screen.
+void Utility::showCentered(QWidget *window) {
+  QRect deskRect = QApplication::desktop()->availableGeometry(window);
+
+  //place window offscreen, so that it can be shown to get proper frameSize()
+  window->move(std::numeric_limits<signed>::max(), std::numeric_limits<signed>::max());
+  window->showNormal();
+
+  //force-resize window to be as small as minimumSize() will allow, and then center it
+  window->resize(0, 0);
+  window->move(
+    deskRect.center().x() - (window->frameSize().width()  / 2),
+    deskRect.center().y() - (window->frameSize().height() / 2)
+  );
+
+  #ifndef _WIN32
+  //Xlib frame size (excluding inside) is QSize(0, 0) at first, wait for it to be valid
+  for(unsigned counter = 0; counter < 4096; counter++) {
+    if(window->frameSize() != window->size()) break;
+    application.processEvents();
+  }
+  #endif
+
+  //in case frame size changed, recenter window
+  window->move(
+    deskRect.center().x() - (window->frameSize().width()  / 2),
+    deskRect.center().y() - (window->frameSize().height() / 2)
+  );
+
+  //ensure window has focus
+  application.processEvents();
+  window->activateWindow();
+  window->raise();
+}
+
+void Utility::updateFullscreenState() {
+  video.clear();
+
+  if(config.video.isFullscreen == false) {
+    config.video.context = &config.video.windowed;
+    winMain->window->showNormal();
+  } else {
+    config.video.context = &config.video.fullscreen;
+    winMain->window->showFullScreen();
+  }
+
+  //Xlib requires time to propogate fullscreen state change message to window manager;
+  //if window is resized before this occurs, canvas may not resize correctly
+  application.processEvents();
+  usleep(50000);
+
+  //refresh options that are unique to each video context
+  resizeMainWindow();
+  updateVideoMode();
+  updateHardwareFilter();
+  updateSoftwareFilter();
+  winMain->syncUi();
+}
+
+//if max exceeds x: x is set to max, and y is scaled down to keep proportion to x
+void Utility::constrainSize(unsigned &x, unsigned &y, unsigned max) {
+  if(x > max) {
+    double scalar = (double)max / (double)x;
+    y = (unsigned)((double)y * (double)scalar);
+    x = max;
+  }
+}
+
+void Utility::resizeMainWindow() {
+  for(unsigned i = 0; i < 8; i++) {
+    unsigned multiplier = config.video.context->multiplier;
+    unsigned width  = 256 * config.video.context->multiplier;
+    unsigned height = (config.video.context->region == 0 ? 224 : 239) * config.video.context->multiplier;
+
+    if(config.video.context->correctAspectRatio) {
+      if(config.video.context->region == 0) {
+        width = (double)width * config.video.ntscAspectRatio + 0.5;  //NTSC adjust
+      } else {
+        width = (double)width * config.video.palAspectRatio  + 0.5;  //PAL adjust
+      }
+    }
+
+    if(config.video.isFullscreen == false) {
+      //get effective desktop work area region (ignore Windows taskbar, OS X doc, etc.)
+      QRect deskRect = QApplication::desktop()->availableGeometry(winMain->window);
+
+      //calculate frame geometry (window border + menubar + statusbar)
+      unsigned frameWidth  = winMain->window->frameSize().width()  - winMain->canvasContainer->size().width();
+      unsigned frameHeight = winMain->window->frameSize().height() - winMain->canvasContainer->size().height();
+
+      //ensure window size will not be larger than viewable desktop area
+      constrainSize(height, width, deskRect.height() - frameHeight);
+      constrainSize(width, height, deskRect.width()  - frameWidth );
+
+      //resize window such that it is as small as possible to hold canvas of size (width, height)
+      winMain->canvas->setFixedSize(width, height);
+      winMain->window->resize(width, height);
+
+      //center window onscreen
+      winMain->window->move(
+        deskRect.center().x() - (winMain->window->frameSize().width()  / 2),
+        deskRect.center().y() - (winMain->window->frameSize().height() / 2)
+      );
+    } else {
+      constrainSize(height, width, winMain->canvasContainer->size().height());
+      constrainSize(width, height, winMain->canvasContainer->size().width());
+
+      //center canvas onscreen; ensure it is not larger than viewable area
+      winMain->canvas->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+      winMain->canvas->setMaximumSize(width, height);
+    }
+
+    application.processEvents();
+    usleep(2000);
+  }
+
+  //work around for Qt/Xlib bug:
+  //if window resize occurs with cursor over it, Qt shows Qt::Size*DiagCursor;
+  //so force it to show Qt::ArrowCursor, as expected
+  winMain->window->setCursor(Qt::ArrowCursor);
+  winMain->canvasContainer->setCursor(Qt::ArrowCursor);
+  winMain->canvas->setCursor(Qt::ArrowCursor);
+}