input: Add option to make show screen button a toggle (#1383)

src/Cafe/CafeSystem.cpp

@@ -396,7 +396,7 @@ void cemu_initForGame()
 		// replace any known function signatures with our HLE implementations and patch bugs in the games
 		GamePatch_scan();
 	}
-	LatteGPUState.alwaysDisplayDRC = ActiveSettings::DisplayDRCEnabled();
+	LatteGPUState.isDRCPrimary = ActiveSettings::DisplayDRCEnabled();
 	InfoLog_PrintActiveSettings();
 	Latte_Start();
 	// check for debugger entrypoint bp

src/Cafe/HW/Latte/Core/Latte.h

@@ -52,7 +52,7 @@ struct LatteGPUState_t
 	uint32 gx2InitCalled; // incremented every time GX2Init() is called
 	// OpenGL control
 	uint32 glVendor; // GLVENDOR_*
-	bool alwaysDisplayDRC = false;
+	bool isDRCPrimary = false;
 	// temporary (replace with proper solution later)
 	bool tvBufferUsesSRGB;
 	bool drcBufferUsesSRGB;

src/Cafe/HW/Latte/Core/LatteRenderTarget.cpp

@@ -989,8 +989,6 @@ void LatteRenderTarget_copyToBackbuffer(LatteTextureView* textureView, bool isPa
 	g_renderer->ImguiEnd();
 }
 
-bool ctrlTabHotkeyPressed = false;
-
 void LatteRenderTarget_itHLECopyColorBufferToScanBuffer(MPTR colorBufferPtr, uint32 colorBufferWidth, uint32 colorBufferHeight, uint32 colorBufferSliceIndex, uint32 colorBufferFormat, uint32 colorBufferPitch, Latte::E_HWTILEMODE colorBufferTilemode, uint32 colorBufferSwizzle, uint32 renderTarget)
 {
 	cemu_assert_debug(colorBufferSliceIndex == 0); // todo - support for non-zero slice
@@ -1000,38 +998,31 @@ void LatteRenderTarget_itHLECopyColorBufferToScanBuffer(MPTR colorBufferPtr, uin
 		return;
 	}
 
+	auto getVPADScreenActive = [](size_t n) -> std::pair<bool, bool> {
+		auto controller = InputManager::instance().get_vpad_controller(n);
+		if (!controller)
+			return {false,false};
+		auto pressed = controller->is_screen_active();
+		auto toggle = controller->is_screen_active_toggle();
+		return {pressed && !toggle, pressed && toggle};
+	};
+
 	const bool tabPressed = gui_isKeyDown(PlatformKeyCodes::TAB);
 	const bool ctrlPressed = gui_isKeyDown(PlatformKeyCodes::LCONTROL);
+	const auto [vpad0Active, vpad0Toggle] = getVPADScreenActive(0);
+	const auto [vpad1Active, vpad1Toggle] = getVPADScreenActive(1);
 
-	bool showDRC = swkbd_hasKeyboardInputHook() == false && tabPressed;
-	bool& alwaysDisplayDRC = LatteGPUState.alwaysDisplayDRC;
+	const bool altScreenRequested = (!ctrlPressed && tabPressed) || vpad0Active || vpad1Active;
+	const bool togglePressed = (ctrlPressed && tabPressed) || vpad0Toggle || vpad1Toggle;
+	static bool togglePressedLast = false;
 
-	if (ctrlPressed && tabPressed)
-	{
-		if (ctrlTabHotkeyPressed == false)
-		{
-			alwaysDisplayDRC = !alwaysDisplayDRC;
-			ctrlTabHotkeyPressed = true;
-		}
-	}
-	else
-		ctrlTabHotkeyPressed = false;
+	bool& isDRCPrimary = LatteGPUState.isDRCPrimary;
 
-	if (alwaysDisplayDRC)
-		showDRC = !tabPressed;
+	if(togglePressed && !togglePressedLast)
+		isDRCPrimary = !isDRCPrimary;
+	togglePressedLast = togglePressed;
 
-	if (!showDRC)
-	{
-		auto controller = InputManager::instance().get_vpad_controller(0);
-		if (controller && controller->is_screen_active())
-			showDRC = true;
-		if (!showDRC)
-		{
-			controller = InputManager::instance().get_vpad_controller(1);
-			if (controller && controller->is_screen_active())
-				showDRC = true;	
-		}
-	}
+	bool showDRC = swkbd_hasKeyboardInputHook() == false && (isDRCPrimary ^ altScreenRequested);
 
 	if ((renderTarget & RENDER_TARGET_DRC) && g_renderer->IsPadWindowActive())
 		LatteRenderTarget_copyToBackbuffer(texView, true);

src/gui/input/panels/VPADInputPanel.cpp

@@ -5,6 +5,7 @@
 #include <wx/statline.h>
 #include <wx/textctrl.h>
 #include <wx/slider.h>
+#include <wx/checkbox.h>
 
 
 #include "gui/helpers/wxControlObject.h"
@@ -131,11 +132,23 @@ VPADInputPanel::VPADInputPanel(wxWindow* parent)
 	}
 
 	// Blow Mic
-	row = 9;
+	row = 8;
 	add_button_row(main_sizer, row, column, VPADController::kButtonId_Mic, _("blow mic"));
 	row++;
 
 	add_button_row(main_sizer, row, column, VPADController::kButtonId_Screen, _("show screen"));
+	row++;
+
+	auto toggleScreenText = new wxStaticText(this, wxID_ANY, _("toggle screen"));
+	main_sizer->Add(toggleScreenText,
+		wxGBPosition(row, column),
+		wxDefaultSpan,
+		wxALL | wxALIGN_CENTER_VERTICAL, 5);
+	m_togglePadViewCheckBox = new wxCheckBox(this, wxID_ANY, {}, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+	wxString toggleScreenTT = _("Makes the \"show screen\" button toggle between the TV and gamepad screens");
+	m_togglePadViewCheckBox->SetToolTip(toggleScreenTT);
+	toggleScreenText->SetToolTip(toggleScreenTT);
+	main_sizer->Add(m_togglePadViewCheckBox, wxGBPosition(row,column+1), wxDefaultSpan, wxALL | wxEXPAND, 5);
 
 	//////////////////////////////////////////////////////////////////
 
@@ -168,6 +181,8 @@ void VPADInputPanel::on_timer(const EmulatedControllerPtr& emulated_controller,
 {
 	InputPanel::on_timer(emulated_controller, controller_base);
 
+	static_cast<VPADController*>(emulated_controller.get())->set_screen_toggle(m_togglePadViewCheckBox->GetValue());
+
 	if(emulated_controller)
 	{
 		const auto axis = emulated_controller->get_axis();
@@ -182,3 +197,10 @@ void VPADInputPanel::OnVolumeChange(wxCommandEvent& event)
 {
 
 }
+void VPADInputPanel::load_controller(const EmulatedControllerPtr& controller)
+{
+	InputPanel::load_controller(controller);
+
+	const bool isToggle = static_cast<VPADController*>(controller.get())->is_screen_active_toggle();
+	m_togglePadViewCheckBox->SetValue(isToggle);
+}

src/gui/input/panels/VPADInputPanel.h

@@ -4,18 +4,21 @@
 #include "gui/input/panels/InputPanel.h"
 
 class wxInputDraw;
+class wxCheckBox;
 
 class VPADInputPanel : public InputPanel
 {
 public:
 	VPADInputPanel(wxWindow* parent);
 
 	void on_timer(const EmulatedControllerPtr& emulated_controller, const ControllerPtr& controller) override;
+	virtual void load_controller(const EmulatedControllerPtr& controller) override;
 
 private:
 	void OnVolumeChange(wxCommandEvent& event);
 
 	wxInputDraw* m_left_draw, * m_right_draw;
+	wxCheckBox* m_togglePadViewCheckBox;
 
 	void add_button_row(wxGridBagSizer *sizer, sint32 row, sint32 column, const VPADController::ButtonId &button_id);
 	void add_button_row(wxGridBagSizer *sizer, sint32 row, sint32 column, const VPADController::ButtonId &button_id, const wxString &label);

src/input/emulated/VPADController.cpp

@@ -686,3 +686,14 @@ bool VPADController::set_default_mapping(const std::shared_ptr<ControllerBase>&
 
 	return mapping_updated;
 }
+
+void VPADController::load(const pugi::xml_node& node)
+{
+	if (const auto value = node.child("toggle_display"))
+		m_screen_active_toggle = ConvertString<bool>(value.child_value());
+}
+
+void VPADController::save(pugi::xml_node& node)
+{
+	node.append_child("toggle_display").append_child(pugi::node_pcdata).set_value(fmt::format("{}", (int)m_screen_active_toggle).c_str());
+}

src/input/emulated/VPADController.h

@@ -66,6 +66,8 @@ class VPADController : public EmulatedController
 
 	bool is_mic_active() { return m_mic_active; }
 	bool is_screen_active() { return m_screen_active; }
+	bool is_screen_active_toggle() { return m_screen_active_toggle; }
+	void set_screen_toggle(bool toggle) {m_screen_active_toggle = toggle;}
 
 	static std::string_view get_button_name(ButtonId id);
 
@@ -86,9 +88,13 @@ class VPADController : public EmulatedController
 
 	bool set_default_mapping(const std::shared_ptr<ControllerBase>& controller) override;
 
+	void load(const pugi::xml_node& node) override;
+	void save(pugi::xml_node& node) override;
+
 private:
 	bool m_mic_active = false;
 	bool m_screen_active = false;
+	bool m_screen_active_toggle = false;
 	uint32be m_last_holdvalue = 0;
 
 	std::chrono::high_resolution_clock::time_point m_last_hold_change{}, m_last_pulse{};