Fix render resolution at different UI scales (#514)

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

@@ -513,9 +513,9 @@ void LatteOverlay_render(bool pad_view)
 
 	sint32 w = 0, h = 0;
 	if (pad_view && gui_isPadWindowOpen())
-		gui_getPadWindowSize(&w, &h);
+		gui_getPadWindowPhysSize(w, h);
 	else
-		gui_getWindowSize(&w, &h);
+		gui_getWindowPhysSize(w, h);
 
 	if (w == 0 || h == 0)
 		return;

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

@@ -848,9 +848,9 @@ void LatteRenderTarget_getScreenImageArea(sint32* x, sint32* y, sint32* width, s
 {
 	int w, h;
 	if(padView && gui_isPadWindowOpen())
-		gui_getPadWindowSize(&w, &h);
+		gui_getPadWindowPhysSize(w, h);
 	else
-		gui_getWindowSize(&w, &h);
+		gui_getWindowPhysSize(w, h);
 
 	sint32 scaledOutputX;
 	sint32 scaledOutputY;

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

@@ -418,7 +418,7 @@ void LatteShaderCache_ShowProgress(const std::function <bool(void)>& loadUpdateF
 			continue;
 
 		int w, h;
-		gui_getWindowSize(&w, &h);
+		gui_getWindowPhysSize(w, h);
 		const Vector2f window_size{ (float)w,(float)h };
 
 		ImGui_GetFont(window_size.y / 32.0f); // = 24 by default

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

@@ -117,7 +117,7 @@ int Latte_ThreadEntry()
 {
 	SetThreadName("LatteThread");
 	sint32 w,h;
-	gui_getWindowSize(&w,&h);
+	gui_getWindowPhysSize(w,h);
 
 	// imgui
 	ImGui::CreateContext();

src/Cafe/HW/Latte/Renderer/OpenGL/OpenGLRenderer.cpp

@@ -556,9 +556,9 @@ void OpenGLRenderer::DrawBackbufferQuad(LatteTextureView* texView, RendererOutpu
 	{
 		int windowWidth, windowHeight;
 		if (padView)
-			gui_getPadWindowSize(&windowWidth, &windowHeight);
+			gui_getPadWindowPhysSize(windowWidth, windowHeight);
 		else
-			gui_getWindowSize(&windowWidth, &windowHeight);
+			gui_getWindowPhysSize(windowWidth, windowHeight);
 		g_renderer->renderTarget_setViewport(0, 0, windowWidth, windowHeight, 0.0f, 1.0f);
 		g_renderer->ClearColorbuffer(padView);
 	}

src/Cafe/HW/Latte/Renderer/Renderer.cpp

@@ -36,9 +36,9 @@ bool Renderer::ImguiBegin(bool mainWindow)
 {
 	sint32 w = 0, h = 0;
 	if(mainWindow)
-		gui_getWindowSize(&w, &h);
+		gui_getWindowPhysSize(w, h);
 	else if(gui_isPadWindowOpen())
-		gui_getPadWindowSize(&w, &h);
+		gui_getPadWindowPhysSize(w, h);
 	else
 		return false;
 		

src/Cafe/HW/Latte/Renderer/Vulkan/CocoaSurface.mm

@@ -13,8 +13,23 @@
 
 +(Class) layerClass { return [CAMetalLayer class]; }
 
--(CALayer*) makeBackingLayer { return [self.class.layerClass layer]; }
+// copied from https://github.com/KhronosGroup/MoltenVK/blob/master/Demos/Cube/macOS/DemoViewController.m
 
+-(CALayer*) makeBackingLayer
+{
+	CALayer* layer = [self.class.layerClass layer];
+	CGSize viewScale = [self convertSizeToBacking: CGSizeMake(1.0, 1.0)];
+	layer.contentsScale = MIN(viewScale.width, viewScale.height);
+	return layer;
+}
+
+-(BOOL) layer: (CALayer *)layer shouldInheritContentsScale: (CGFloat)newScale fromWindow: (NSWindow *)window
+{
+	if (newScale == layer.contentsScale) { return NO; }
+
+	layer.contentsScale = newScale;
+	return YES;
+}
 @end
 
 VkSurfaceKHR CreateCocoaSurface(VkInstance instance, void* handle)

src/Cafe/HW/Latte/Renderer/Vulkan/SwapchainInfoVk.cpp

@@ -208,20 +208,14 @@ bool SwapchainInfoVk::AcquireImage(uint64 timeout)
 
 	VkSemaphore acquireSemaphore = m_acquireSemaphores[m_acquireIndex];
 	VkResult result = vkAcquireNextImageKHR(m_logicalDevice, swapchain, timeout, acquireSemaphore, m_imageAvailableFence, &swapchainImageIndex);
-	if (result == VK_TIMEOUT)
+	if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR)
+		m_shouldRecreate = true;
+	if (result < 0)
 	{
-		return false;
+		swapchainImageIndex = -1;
-	}
+		if (result != VK_ERROR_OUT_OF_DATE_KHR)
-	else if (result != VK_SUCCESS)
-	{
-		if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR)
-			m_shouldRecreate = true;
-
-		if (result == VK_ERROR_OUT_OF_DATE_KHR)
-			return false;
-
-		if (result != VK_ERROR_OUT_OF_DATE_KHR && result != VK_SUBOPTIMAL_KHR)
 			throw std::runtime_error(fmt::format("Failed to acquire next image: {}", result));
+		return false;
 	}
 	m_currentSemaphore = acquireSemaphore;
 	m_awaitableFence = m_imageAvailableFence;

src/Cafe/HW/Latte/Renderer/Vulkan/VulkanRenderer.cpp

@@ -643,7 +643,7 @@ VulkanRenderer* VulkanRenderer::GetInstance()
 	return (VulkanRenderer*)g_renderer.get();
 }
 
-void VulkanRenderer::Initialize(const Vector2i& size, bool mainWindow)
+void VulkanRenderer::InitializeSurface(const Vector2i& size, bool mainWindow)
 {
 	auto& windowHandleInfo = mainWindow ? gui_getWindowInfo().canvas_main : gui_getWindowInfo().canvas_pad;
 
@@ -2564,20 +2564,20 @@ void VulkanRenderer::RecreateSwapchain(bool mainWindow, bool skipCreate)
 	if (mainWindow)
 	{
 		ImGui_ImplVulkan_Shutdown();
-		gui_getWindowSize(&size.x, &size.y);
+		gui_getWindowPhysSize(size.x, size.y);
 	}
 	else
 	{
-		gui_getPadWindowSize(&size.x, &size.y);
+		gui_getPadWindowPhysSize(size.x, size.y);
 	}
 
+	chainInfo.swapchainImageIndex = -1;
 	chainInfo.Cleanup();
 	chainInfo.m_desiredExtent = size;
 	if(!skipCreate)
 	{
 		chainInfo.Create(m_physicalDevice, m_logicalDevice);
 	}
-	chainInfo.swapchainImageIndex = -1;
 
 	if (mainWindow)
 		ImguiInit();
@@ -2644,13 +2644,12 @@ void VulkanRenderer::SwapBuffer(bool mainWindow)
 	presentInfo.pWaitSemaphores = &presentSemaphore;
 
 	VkResult result = vkQueuePresentKHR(m_presentQueue, &presentInfo);
-	if (result != VK_SUCCESS)
+	if (result < 0 && result != VK_ERROR_OUT_OF_DATE_KHR)
 	{
-		if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR)
+		throw std::runtime_error(fmt::format("Failed to present image: {}", result));
-			chainInfo.m_shouldRecreate = true;
-		else
-			throw std::runtime_error(fmt::format("Failed to present image: {}", result));
 	}
+	if(result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR)
+		chainInfo.m_shouldRecreate = true;
 
 	chainInfo.hasDefinedSwapchainImage = false;
 

src/Cafe/HW/Latte/Renderer/Vulkan/VulkanRenderer.h

@@ -182,7 +182,7 @@ public:
 
 	void GetDeviceFeatures();
 	void DetermineVendor();
-	void Initialize(const Vector2i& size, bool mainWindow);
+	void InitializeSurface(const Vector2i& size, bool mainWindow);
 
 	const std::unique_ptr<SwapchainInfoVk>& GetChainInfoPtr(bool mainWindow) const;
 	SwapchainInfoVk& GetChainInfo(bool mainWindow) const;

src/gui/MainWindow.cpp

@@ -157,6 +157,7 @@ wxBEGIN_EVENT_TABLE(MainWindow, wxFrame)
 EVT_TIMER(MAINFRAME_ID_TIMER1, MainWindow::OnTimer)
 EVT_CLOSE(MainWindow::OnClose)
 EVT_SIZE(MainWindow::OnSizeEvent)
+EVT_DPI_CHANGED(MainWindow::OnDPIChangedEvent)
 EVT_MOVE(MainWindow::OnMove)
 // file menu
 EVT_MENU(MAINFRAME_MENU_ID_FILE_LOAD, MainWindow::OnFileMenu)
@@ -1310,7 +1311,8 @@ void MainWindow::OnMouseMove(wxMouseEvent& event)
 
 	auto& instance = InputManager::instance();
 	std::unique_lock lock(instance.m_main_mouse.m_mutex);
-	instance.m_main_mouse.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_main_mouse.position = { physPos.x, physPos.y };
 	lock.unlock();
 
 	if (!IsFullScreen())
@@ -1328,7 +1330,8 @@ void MainWindow::OnMouseLeft(wxMouseEvent& event)
 	
 	std::scoped_lock lock(instance.m_main_mouse.m_mutex);
 	instance.m_main_mouse.left_down = event.ButtonDown(wxMOUSE_BTN_LEFT);
-	instance.m_main_mouse.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_main_mouse.position = { physPos.x, physPos.y };
 	if (event.ButtonDown(wxMOUSE_BTN_LEFT))
 		instance.m_main_mouse.left_down_toggle = true;
 	
@@ -1341,7 +1344,8 @@ void MainWindow::OnMouseRight(wxMouseEvent& event)
 
 	std::scoped_lock lock(instance.m_main_mouse.m_mutex);
 	instance.m_main_mouse.right_down = event.ButtonDown(wxMOUSE_BTN_RIGHT);
-	instance.m_main_mouse.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_main_mouse.position = { physPos.x, physPos.y };
 	if(event.ButtonDown(wxMOUSE_BTN_RIGHT))
 		instance.m_main_mouse.right_down_toggle = true;
 	
@@ -1441,7 +1445,8 @@ void MainWindow::OnGesturePan(wxPanGestureEvent& event)
 {
 	auto& instance = InputManager::instance();
 	std::scoped_lock lock(instance.m_main_touch.m_mutex);
-	instance.m_main_touch.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_main_touch.position = { physPos.x, physPos.y };
 	instance.m_main_touch.left_down = event.IsGestureStart() || !event.IsGestureEnd();
 	if (event.IsGestureStart() || !event.IsGestureEnd())
 		instance.m_main_touch.left_down_toggle = true;
@@ -1516,6 +1521,8 @@ void MainWindow::OnSizeEvent(wxSizeEvent& event)
 	const wxSize client_size = GetClientSize();
 	g_window_info.width = client_size.GetWidth();
 	g_window_info.height = client_size.GetHeight();
+	g_window_info.phys_width = ToPhys(client_size.GetWidth());
+	g_window_info.phys_height = ToPhys(client_size.GetHeight());
 
 	if (m_debugger_window && m_debugger_window->IsShown())
 		m_debugger_window->OnParentMove(GetPosition(), event.GetSize());
@@ -1525,6 +1532,16 @@ void MainWindow::OnSizeEvent(wxSizeEvent& event)
 	VsyncDriver_notifyWindowPosChanged();
 }
 
+void MainWindow::OnDPIChangedEvent(wxDPIChangedEvent& event)
+{
+	event.Skip();
+	const wxSize client_size = GetClientSize();
+	g_window_info.width = client_size.GetWidth();
+	g_window_info.height = client_size.GetHeight();
+	g_window_info.phys_width = ToPhys(client_size.GetWidth());
+	g_window_info.phys_height = ToPhys(client_size.GetHeight());
+}
+
 void MainWindow::OnMove(wxMoveEvent& event)
 {
 	if (!IsMaximized() && !gui_isFullScreen())

src/gui/MainWindow.h

@@ -78,6 +78,7 @@ public:
 	PadViewFrame* GetPadView() const { return m_padView; }
 
 	void OnSizeEvent(wxSizeEvent& event);
+	void OnDPIChangedEvent(wxDPIChangedEvent& event);
 	void OnMove(wxMoveEvent& event);
 
 	void OnDebuggerClose(wxCloseEvent& event);

src/gui/PadViewFrame.cpp

@@ -37,6 +37,7 @@ PadViewFrame::PadViewFrame(wxFrame* parent)
 		Maximize();
 
 	Bind(wxEVT_SIZE, &PadViewFrame::OnSizeEvent, this);
+	Bind(wxEVT_DPI_CHANGED, &PadViewFrame::OnDPIChangedEvent, this);
 	Bind(wxEVT_MOVE, &PadViewFrame::OnMoveEvent, this);
 	Bind(wxEVT_MOTION, &PadViewFrame::OnMouseMove, this);
 
@@ -55,6 +56,8 @@ bool PadViewFrame::Initialize()
 	const wxSize client_size = GetClientSize();
 	g_window_info.pad_width = client_size.GetWidth();
 	g_window_info.pad_height = client_size.GetHeight();
+	g_window_info.phys_pad_width = ToPhys(client_size.GetWidth());
+	g_window_info.phys_pad_height = ToPhys(client_size.GetHeight());
 
 	return true;
 }
@@ -98,10 +101,22 @@ void PadViewFrame::OnSizeEvent(wxSizeEvent& event)
 	const wxSize client_size = GetClientSize();
 	g_window_info.pad_width = client_size.GetWidth();
 	g_window_info.pad_height = client_size.GetHeight();
+	g_window_info.phys_pad_width = ToPhys(client_size.GetWidth());
+	g_window_info.phys_pad_height = ToPhys(client_size.GetHeight());
 
 	event.Skip();
 }
 
+void PadViewFrame::OnDPIChangedEvent(wxDPIChangedEvent& event)
+{
+	event.Skip();
+	const wxSize client_size = GetClientSize();
+	g_window_info.pad_width = client_size.GetWidth();
+	g_window_info.pad_height = client_size.GetHeight();
+	g_window_info.phys_pad_width = ToPhys(client_size.GetWidth());
+	g_window_info.phys_pad_height = ToPhys(client_size.GetHeight());
+}
+
 void PadViewFrame::OnMoveEvent(wxMoveEvent& event)
 {
 	if (!IsMaximized() && !IsFullScreen())
@@ -130,7 +145,8 @@ void PadViewFrame::OnGesturePan(wxPanGestureEvent& event)
 	auto& instance = InputManager::instance();
 
 	std::scoped_lock lock(instance.m_pad_touch.m_mutex);
-	instance.m_pad_touch.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_pad_touch.position = { physPos.x, physPos.y };
 	instance.m_pad_touch.left_down = event.IsGestureStart() || !event.IsGestureEnd();
 	if (event.IsGestureStart() || !event.IsGestureEnd())
 		instance.m_pad_touch.left_down_toggle = true;
@@ -149,7 +165,8 @@ void PadViewFrame::OnMouseMove(wxMouseEvent& event)
 	auto& instance = InputManager::instance();
 
 	std::scoped_lock lock(instance.m_pad_touch.m_mutex);
-	instance.m_pad_mouse.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_pad_mouse.position = { physPos.x, physPos.y };
 
 	event.Skip();
 }
@@ -160,7 +177,8 @@ void PadViewFrame::OnMouseLeft(wxMouseEvent& event)
 
 	std::scoped_lock lock(instance.m_pad_mouse.m_mutex);
 	instance.m_pad_mouse.left_down = event.ButtonDown(wxMOUSE_BTN_LEFT);
-	instance.m_pad_mouse.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_pad_mouse.position = { physPos.x, physPos.y };
 	if (event.ButtonDown(wxMOUSE_BTN_LEFT))
 		instance.m_pad_mouse.left_down_toggle = true;
 	
@@ -172,7 +190,8 @@ void PadViewFrame::OnMouseRight(wxMouseEvent& event)
 
 	std::scoped_lock lock(instance.m_pad_mouse.m_mutex);
 	instance.m_pad_mouse.right_down = event.ButtonDown(wxMOUSE_BTN_LEFT);
-	instance.m_pad_mouse.position = { event.GetPosition().x, event.GetPosition().y };
+	auto physPos = ToPhys(event.GetPosition());
+	instance.m_pad_mouse.position = { physPos.x, physPos.y };
 	if (event.ButtonDown(wxMOUSE_BTN_RIGHT))
 		instance.m_pad_mouse.right_down_toggle = true;
 }

src/gui/PadViewFrame.h

@@ -26,6 +26,7 @@ private:
 	void OnMouseLeft(wxMouseEvent& event);
 	void OnMouseRight(wxMouseEvent& event);
 	void OnSizeEvent(wxSizeEvent& event);
+	void OnDPIChangedEvent(wxDPIChangedEvent& event);
 	void OnMoveEvent(wxMoveEvent& event);
 	void OnGesturePan(wxPanGestureEvent& event);
 	void OnSetWindowTitle(wxCommandEvent& event);

src/gui/canvas/VulkanCanvas.cpp

@@ -23,7 +23,7 @@ VulkanCanvas::VulkanCanvas(wxWindow* parent, const wxSize& size, bool is_main_wi
 			g_renderer = std::make_unique<VulkanRenderer>();
 
 		auto vulkan_renderer = VulkanRenderer::GetInstance();
-		vulkan_renderer->Initialize({size.x, size.y}, is_main_window);
+		vulkan_renderer->InitializeSurface({size.x, size.y}, is_main_window);
 	}
 	catch(const std::exception& ex)
 	{

src/gui/guiWrapper.cpp

@@ -137,23 +137,44 @@ void gui_updateWindowTitles(bool isIdle, bool isLoading, double fps)
 	}
 }
 
-void gui_getWindowSize(int* w, int* h)
+void gui_getWindowSize(int& w, int& h)
 {
-	*w = g_window_info.width;
+	w = g_window_info.width;
-	*h = g_window_info.height;
+	h = g_window_info.height;
 }
 
-void gui_getPadWindowSize(int* w, int* h)
+
+void gui_getPadWindowSize(int& w, int& h)
 {
 	if (g_window_info.pad_open)
 	{
-		*w = g_window_info.pad_width;
+		w = g_window_info.pad_width;
-		*h = g_window_info.pad_height;
+		h = g_window_info.pad_height;
 	}
 	else
 	{
-		*w = 0;
+		w = 0;
-		*h = 0;
+		h = 0;
+	}
+}
+
+void gui_getWindowPhysSize(int& w, int& h)
+{
+	w = g_window_info.phys_width;
+	h = g_window_info.phys_height;
+}
+
+void gui_getPadWindowPhysSize(int& w, int& h)
+{
+	if (g_window_info.pad_open)
+	{
+		w = g_window_info.phys_pad_width;
+		h = g_window_info.phys_pad_height;
+	}
+	else
+	{
+		w = 0;
+		h = 0;
 	}
 }
 

src/gui/guiWrapper.h

@@ -56,9 +56,11 @@ struct WindowInfo
 	std::atomic_bool app_active; // our app is active/has focus
 
 	std::atomic_int32_t width, height; 	// client size of main window
+	std::atomic_int32_t phys_width, phys_height; 	// client size of main window in physical pixels
 
 	std::atomic_bool pad_open; // if separate pad view is open
 	std::atomic_int32_t pad_width, pad_height; 	// client size of pad window
+	std::atomic_int32_t phys_pad_width, phys_pad_height; 	// client size of pad window in physical pixels
 
 	std::atomic_bool pad_maximized = false;
 	std::atomic_int32_t restored_pad_x = -1, restored_pad_y = -1;
@@ -112,8 +114,10 @@ void gui_create();
 WindowInfo& gui_getWindowInfo();
 
 void gui_updateWindowTitles(bool isIdle, bool isLoading, double fps);
-void gui_getWindowSize(int* w, int* h);
+void gui_getWindowSize(int& w, int& h);
-void gui_getPadWindowSize(int* w, int* h);
+void gui_getPadWindowSize(int& w, int& h);
+void gui_getWindowPhysSize(int& w, int& h);
+void gui_getPadWindowPhysSize(int& w, int& h);
 bool gui_isPadWindowOpen();
 bool gui_isKeyDown(uint32 key);
 bool gui_isKeyDown(PlatformKeyCodes key);

src/input/emulated/VPADController.cpp

@@ -287,9 +287,9 @@ void VPADController::update_motion(VPADStatus_t& status)
 
 		int w, h;
 		if (pad_view)
-			gui_getPadWindowSize(&w, &h);
+			gui_getPadWindowPhysSize(w, h);
 		else
-			gui_getWindowSize(&w, &h);
+			gui_getWindowPhysSize(w, h);
 
 		float wx = mousePos.x / w;
 		float wy = mousePos.y / h;