fix launcher regression

feat(input): add host input remapping
Add compact keyboard and mouse mapping with analog-stick defaults and integrate a global remapping editor into the Qt launcher. Based on the host input remapping work from PR #109. Co-authored-by: DistantMyth <thetarun3@gmail.com>
2026-10-20 10:56:58 +02:00 · 2026-08-04 03:35:30 +02:00 · 2026-08-04 03:24:34 +02:00 · 2026-08-04 02:51:11 +02:00 · 2026-08-04 02:26:50 +02:00 · 2026-08-04 02:26:50 +02:00
39 changed files with 1182 additions and 463 deletions
@@ -33,6 +33,10 @@ uint32_t GetScreenHeight() {
 	return g_config->screen_height;
 }

+bool FullscreenEnabled() {
+	return g_config->fullscreen_enabled;
+}
+
 uint32_t GetVblankFrequency() {
 	return std::clamp(g_config->vblank_frequency, 30u, 360u);
 }
@@ -97,4 +101,8 @@ bool ReadbackLinearImagesEnabled() {
 	return g_config->readback_linear_images;
 }

+const Keymap& GetKeymap() {
+	return g_config->keymap;
+}
+
 } // namespace Config
@@ -5,6 +5,8 @@
 #include "common/subsystems.h"

 #include <filesystem>
+#include <string>
+#include <vector>

 namespace Config {

@@ -18,12 +20,15 @@ enum class ProfilerDirection { None, Network };

 enum class OutputDirection { Silent, Console, File };

+using Keymap = std::vector<std::string>;
+
 constexpr uint32_t DEFAULT_CONSOLE_LANGUAGE = 1;
 constexpr uint32_t MAX_CONSOLE_LANGUAGE     = 29;

 struct ConfigOptions {
 	uint32_t               screen_width                = 1280;
 	uint32_t               screen_height               = 720;
+	bool                   fullscreen_enabled          = false;
 	uint32_t               vblank_frequency            = 60;
 	uint32_t               console_language            = DEFAULT_CONSOLE_LANGUAGE;
 	bool                   vulkan_validation_enabled   = false;
@@ -40,12 +45,14 @@ struct ConfigOptions {
 	bool                   spirv_debug_printf_enabled  = false;
 	bool                   renderdoc_enabled           = false;
 	bool                   readback_linear_images      = false;
+	Keymap                 keymap;
 };

 void Load(const ConfigOptions& cfg);

 uint32_t GetScreenWidth();
 uint32_t GetScreenHeight();
+bool     FullscreenEnabled();
 uint32_t GetVblankFrequency();
 uint32_t GetConsoleLanguage();
 bool     VulkanValidationEnabled();
@@ -70,6 +77,8 @@ bool SpirvDebugPrintfEnabled();
 bool RenderDocEnabled();
 bool ReadbackLinearImagesEnabled();

+const Keymap& GetKeymap();
+
 } // namespace Config

 #endif /* KYTY_COMMON_EMULATOR_CONFIG_H_ */
@@ -50,23 +50,10 @@ public:

 	void Reset();

-	void BufferInit();
-	void BufferFlush();
-	void BufferFlushAndWait();
-	void BufferWait();
-	void BeginReadbackTransaction() {
-		if (m_readback_active) {
-			EXIT("nested command-processor readback transaction\n");
-		}
-		m_readback_active = true;
-	}
-	void EndReadbackTransaction() {
-		if (!m_readback_active) {
-			EXIT("command-processor readback transaction is not active\n");
-		}
-		m_readback_active = false;
-	}
-
+	void            BufferInit();
+	void            BufferFlush();
+	void            BufferFlushAndWait();
+	void            BufferWait();
 	HW::Context&    GetCtx() { return m_ctx; }
 	HW::UserConfig& GetUcfg() { return m_ucfg; }
 	HW::Shader&     GetShCtx() { return m_sh_ctx; }
@@ -173,10 +160,9 @@ private:
 	// Persistent draw state: indirect draws update it for subsequent draws.
 	uint32_t m_num_instances = 1;

-	uint32_t m_de_count        = 0;
-	uint32_t m_ce_count        = 0;
-	bool     m_ce_complete     = false;
-	bool     m_readback_active = false;
+	uint32_t m_de_count    = 0;
+	uint32_t m_ce_count    = 0;
+	bool     m_ce_complete = false;

 	uint32_t m_const_ram[0x3000] = {0};

@@ -36,6 +36,7 @@ static thread_local CommandProcessor* g_current_processor = nullptr;
 static thread_local Pm4Execution*     g_current_execution = nullptr;
 static thread_local bool              g_gpu_mutex_owned   = false;
 static thread_local bool              g_gpu_thread        = false;
+static thread_local GpuState*         g_gpu_state         = nullptr;

 class GpuMutexLock final {
 public:
@@ -98,11 +99,10 @@ public:
 	void SubmitFlipPreparation(uint64_t request_id);
 	void Done();
 	void Shutdown();
-	[[nodiscard]] bool IsStopping();
-	void               SendCommand(Common::UniqueFunction<void>&& command);
-	void               SendCommandSync(Common::UniqueFunction<void>&& command);
-	void SendCommandSyncWithProcessor(Common::UniqueFunction<void, CommandProcessor&>&& command);
-	int  GetFrameNum();
+	[[nodiscard]] bool        IsStopping();
+	void                      SendCommand(Common::UniqueFunction<void>&& command);
+	void                      SendCommandSync(Common::UniqueFunction<void>&& command);
+	int                       GetFrameNum();
 	[[nodiscard]] static bool IsGpuThread() noexcept { return g_gpu_thread; }

 private:
@@ -127,6 +127,7 @@ private:
 	void              WaitLocked();
 	void              Enqueue(Submission submission);
 	void              WaitForIdle();
+	void              ProcessCommands();
 	bool              Process(Submission& submission);
 	static void       ThreadRun(void* data);
 	CommandProcessor& GetProcessor(uint32_t queue_id);
@@ -139,6 +140,7 @@ private:
 	Common::CondVar                                m_idle;
 	std::array<std::deque<Submission>, QueueCount> m_queues;
 	std::deque<Common::UniqueFunction<void>>       m_commands;
+	std::atomic_uint32_t                           m_pending_commands {0};
 	uint32_t                                       m_next_queue        = 0;
 	uint32_t                                       m_submission_count  = 0;
 	bool                                           m_processing        = false;
@@ -153,6 +155,8 @@ private:
 	uint64_t        m_submit_id = 0;
 	std::atomic_int m_done_num  = 0;
 	std::jthread    m_thread;
+
+	friend class CommandProcessor;
 };

 static bool GraphicsRunDebugDumpEnabled() {
@@ -195,9 +199,25 @@ void GpuState::SendCommand(Common::UniqueFunction<void>&& command) {
 	Common::LockGuard lock(m_queue_mutex);
 	EXIT_IF(!m_accepting);
 	m_commands.push_back(std::move(command));
+	m_pending_commands.fetch_add(1, std::memory_order_release);
 	m_work_available.Signal();
 }

+void GpuState::ProcessCommands() {
+	EXIT_IF(!IsGpuThread());
+	while (m_pending_commands.load(std::memory_order_acquire) != 0) {
+		Common::UniqueFunction<void> command;
+		{
+			Common::LockGuard lock(m_queue_mutex);
+			EXIT_IF(m_commands.empty());
+			command = std::move(m_commands.front());
+			m_commands.pop_front();
+			EXIT_IF(m_pending_commands.fetch_sub(1, std::memory_order_acq_rel) == 0);
+		}
+		command();
+	}
+}
+
 void GpuState::SendCommandSync(Common::UniqueFunction<void>&& command) {
 	EXIT_IF(!command);
 	if (IsGpuThread()) {
@@ -212,17 +232,6 @@ void GpuState::SendCommandSync(Common::UniqueFunction<void>&& command) {
 	done.acquire();
 }

-void GpuState::SendCommandSyncWithProcessor(
-    Common::UniqueFunction<void, CommandProcessor&>&& command) {
-	EXIT_IF(!command);
-	SendCommandSync([this, operation = std::move(command)]() mutable {
-		EXIT_IF(g_current_processor != nullptr);
-		g_current_processor = m_gfx_cp.get();
-		operation(*m_gfx_cp);
-		g_current_processor = nullptr;
-	});
-}
-
 void GpuState::Submit(uint32_t* cmd_draw_buffer, uint32_t num_draw_dw, uint32_t* cmd_const_buffer,
                      uint32_t num_const_dw, bool trigger_agc_interrupt_on_done) {
 	GpuMutexLock lock(m_submission_mutex);
@@ -509,6 +518,7 @@ void GpuState::ThreadRun(void* data) {
 	EXIT_IF(gpu == nullptr);
 	KYTY_PROFILER_THREAD("Thread_Gpu");
 	g_gpu_thread = true;
+	g_gpu_state  = gpu;

 	for (;;) {
 		Submission                   submission;
@@ -529,6 +539,7 @@ void GpuState::ThreadRun(void* data) {
 			} else if (!gpu->m_commands.empty()) {
 				command = std::move(gpu->m_commands.front());
 				gpu->m_commands.pop_front();
+				EXIT_IF(gpu->m_pending_commands.fetch_sub(1, std::memory_order_acq_rel) == 0);
 				gpu->m_processing = true;
 			} else {
 				int selected_queue = -1;
@@ -560,6 +571,7 @@ void GpuState::ThreadRun(void* data) {
 		}
 		if (should_stop) {
 			gpu->m_gfx_cp->BufferWait();
+			g_gpu_state  = nullptr;
 			g_gpu_thread = false;
 			return;
 		}
@@ -741,6 +753,9 @@ void CommandProcessor::SuspendPm4() {

 void CommandProcessor::ProcessPm4(Pm4Execution& execution, size_t stop_depth) {
 	while (execution.m_buffer_stack.size() > stop_depth) {
+		if (g_gpu_state != nullptr) {
+			g_gpu_state->ProcessCommands();
+		}
 		const auto buffer_index = execution.m_buffer_stack.size() - 1;
 		auto&      cursor       = execution.m_buffer_stack[buffer_index];
 		if (cursor.deferred_advance_dw != 0) {
@@ -1650,10 +1665,6 @@ void Gpu::SendCommandSync(Common::UniqueFunction<void>&& command) {
 	m_state->SendCommandSync(std::move(command));
 }

-void Gpu::SendCommandSyncWithProcessor(Common::UniqueFunction<void, CommandProcessor&>&& command) {
-	m_state->SendCommandSyncWithProcessor(std::move(command));
-}
-
 void Gpu::Submit(uint32_t* draw_commands, uint32_t draw_size_dw, uint32_t* constant_commands,
                 uint32_t constant_size_dw, bool trigger_agc_interrupt_on_done) {
 	EXIT_IF(draw_commands == nullptr || draw_size_dw == 0);
@@ -1679,12 +1690,8 @@ int Gpu::GetFrameNum() const {
 	return m_state->GetFrameNum();
 }

-bool Gpu::IsCommandProcessorThread() noexcept {
-	return g_current_processor != nullptr;
-}
-
-CommandProcessor* Gpu::CurrentCommandProcessor() noexcept {
-	return g_current_processor;
+bool Gpu::IsGpuThread() noexcept {
+	return GpuState::IsGpuThread();
 }

 } // namespace Libs::Graphics
@@ -9,7 +9,6 @@

 namespace Libs::Graphics {

-class CommandProcessor;
 class GpuState;
 class RenderContext;

@@ -23,7 +22,6 @@ public:
 	[[nodiscard]] bool IsStopping();
 	void               SendCommand(Common::UniqueFunction<void>&& command);
 	void               SendCommandSync(Common::UniqueFunction<void>&& command);
-	void SendCommandSyncWithProcessor(Common::UniqueFunction<void, CommandProcessor&>&& command);

 	void Submit(uint32_t* draw_commands, uint32_t draw_size_dw, uint32_t* constant_commands,
 	            uint32_t constant_size_dw, bool trigger_agc_interrupt_on_done = false);
@@ -33,8 +31,7 @@ public:
 	void Done();
 	[[nodiscard]] int GetFrameNum() const;

-	[[nodiscard]] static bool              IsCommandProcessorThread() noexcept;
-	[[nodiscard]] static CommandProcessor* CurrentCommandProcessor() noexcept;
+	[[nodiscard]] static bool IsGpuThread() noexcept;

 private:
 	std::unique_ptr<GpuState> m_state;
@@ -29,45 +29,29 @@ public:
 	void               MarkRegionAsGpuModified(uint64_t vaddr, uint64_t size);
 	void               UnmarkRegionAsGpuModified(uint64_t vaddr, uint64_t size);
 	void               UntrackMemory(uint64_t vaddr, uint64_t size);
+	// Removes protection from a range and flushes GPU-owned data when required.
 	template <typename Flush>
-	void InvalidateRegion(uint64_t vaddr, uint64_t size, Flush&& on_flush) {
+	void InvalidateRegion(uint64_t vaddr, uint64_t size, Flush&& on_flush) noexcept {
 		static_assert(std::is_invocable_v<Flush&>);
 		CheckNotInUploadCallback();
 		ValidateRange(vaddr, size);

-		const auto update_cpu_state = [this, vaddr, size] {
-			std::lock_guard             access(m_access_mutex);
-			std::vector<RegionManager*> managers;
-			Iterate<false>(vaddr, size, [&](RegionManager* manager, uint64_t, uint64_t) {
-				managers.push_back(manager);
-			});
-			std::vector<std::unique_lock<TrackingSpinLock>> locks;
-			locks.reserve(managers.size());
-			for (auto* manager: managers) {
-				locks.emplace_back(manager->lock);
+		Iterate<false>(vaddr, size, [&](RegionManager* manager, uint64_t offset, uint64_t bytes) {
+			const bool should_flush = [&] {
+				// Perform both the GPU modification check and CPU state change with the lock in
+				// case the GPU thread is racing to mark the page modified. If a flush is needed,
+				// on_flush performs the CPU state change.
+				std::scoped_lock lock(manager->lock);
+				if (manager->IsModified<DirtySource::Gpu>(offset, bytes)) {
+					return true;
+				}
+				manager->ChangeState<DirtySource::Cpu, true>(manager->GetCpuAddr() + offset, bytes);
+				return false;
+			}();
+			if (should_flush) {
+				on_flush();
 			}
-			const bool gpu_modified = Iterate<false>(
-			    vaddr, size, [](RegionManager* manager, uint64_t offset, uint64_t bytes) {
-				    return manager->IsModified<DirtySource::Gpu>(offset, bytes);
-			    });
-			if (gpu_modified) {
-				return true;
-			}
-			Iterate<false>(vaddr, size,
-			               [](RegionManager* manager, uint64_t offset, uint64_t bytes) {
-				               manager->ChangeState<DirtySource::Cpu, true>(
-				                   manager->GetCpuAddr() + offset, bytes);
-			               });
-			return false;
-		};
-
-		if (!update_cpu_state()) {
-			return;
-		}
-		std::forward<Flush>(on_flush)();
-		if (update_cpu_state()) {
-			EXIT("memory invalidation retained GPU-owned pages\n");
-		}
+		});
 	}
 #if KYTY_BUILD == KYTY_BUILD_DEBUG
 	void ValidateGpuDirtyPages(const RangeSet& dirty, uint64_t vaddr, uint64_t size,
@@ -3,15 +3,18 @@
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "common/profiler.h"
+#include "graphics/guest_gpu/graphicsRun.h"
 #include "graphics/host_gpu/graphicContext.h"
 #include "graphics/host_gpu/renderer/cache/resourceMutex.h"
 #include "graphics/host_gpu/renderer/cache/textureCache.h"
 #include "graphics/host_gpu/renderer/commandScheduler.h"
 #include "graphics/host_gpu/renderer/render.h"
+#include "graphics/host_gpu/renderer/renderContext.h"
 #include "kernel/memory.h"

 #include <algorithm>
 #include <array>
+#include <cinttypes>
 #include <cstring>
 #include <utility>
 #include <vector>
@@ -288,10 +291,29 @@ void BufferCache::InvalidateMemory(uint64_t vaddr, uint64_t size) {
 		return;
 	}
 	m_memory_tracker.InvalidateRegion(vaddr, size,
-	                                  [this, vaddr, size] { ReadMemory(vaddr, size); });
+	                                  [this, vaddr, size] { ReadMemory(vaddr, size, true); });
 }

-void BufferCache::ReadMemory(uint64_t vaddr, uint64_t size) {
+void BufferCache::ReadMemory(uint64_t vaddr, uint64_t size, bool is_write) {
+	if (Gpu::IsGpuThread()) {
+		ReadMemoryOnGpu(vaddr, size, is_write);
+		return;
+	}
+	if (CommandScheduler::InDeferredOperation()) {
+		EXIT("unsupported buffer readback from an asynchronous GPU completion, "
+		     "addr=0x%016" PRIx64 " size=0x%016" PRIx64 "\n",
+		     vaddr, size);
+	}
+	if (m_resource_mutex.IsOwnedByCurrentThread()) {
+		EXIT("unsupported buffer readback from a pre-owned resource transaction, "
+		     "addr=0x%016" PRIx64 " size=0x%016" PRIx64 "\n",
+		     vaddr, size);
+	}
+	m_scheduler.Context().GetGpu().SendCommandSync(
+	    [this, vaddr, size, is_write] { ReadMemoryOnGpu(vaddr, size, is_write); });
+}
+
+void BufferCache::ReadMemoryOnGpu(uint64_t vaddr, uint64_t size, bool is_write) {
 	std::vector<DownloadCopy> copies;
 	{
 		FaultSafeCacheLock lock(this, m_mutex);
@@ -322,9 +344,16 @@ void BufferCache::ReadMemory(uint64_t vaddr, uint64_t size) {
 				    }
 			    }
 		    });
-	}
-	if (copies.empty()) {
-		return;
+		if (copies.empty()) {
+			if (!is_write) {
+				return;
+			}
+			// A preceding read fault can consume the last GPU-owned copy after this write
+			// invalidation has already chosen to flush. Complete the CPU ownership handoff even
+			// though this callback no longer has bytes to download.
+			m_memory_tracker.MarkRegionAsCpuModified(vaddr, size);
+			return;
+		}
 	}
 	auto downloads = RecordDownloads(copies);
 	m_scheduler.FinishCurrent();
@@ -336,6 +365,9 @@ void BufferCache::ReadMemory(uint64_t vaddr, uint64_t size) {
 		}
 		// The enumeration above covered whole dirty pages and every exact interval on them.
 		m_memory_tracker.UnmarkRegionAsGpuModified(vaddr, size);
+		if (is_write) {
+			m_memory_tracker.MarkRegionAsCpuModified(vaddr, size);
+		}
 	}
 }

@@ -46,7 +46,7 @@ public:
 	KYTY_CLASS_NO_COPY(BufferCache);

 	void                        InvalidateMemory(uint64_t vaddr, uint64_t size);
-	void                        ReadMemory(uint64_t vaddr, uint64_t size);
+	void                        ReadMemory(uint64_t vaddr, uint64_t size, bool is_write = false);
 	void                        UnmapMemory(uint64_t vaddr, uint64_t size);
 	[[nodiscard]] BufferBinding ObtainBuffer(CommandBuffer& command, uint64_t vaddr, uint64_t size,
 	                                         bool is_written = false, bool is_read = true,
@@ -97,6 +97,7 @@ private:
 	void PublishDownloads(std::span<const DownloadRange> downloads);
 	void QueueGarbageDownload(std::span<const DownloadCopy> copies, RetiredBuffer retire);
 	void WriteHostMemory(uint64_t vaddr, std::span<const uint8_t> data);
+	void ReadMemoryOnGpu(uint64_t vaddr, uint64_t size, bool is_write);

 	GraphicContext&                                   m_graphics;
 	CommandScheduler&                                 m_scheduler;
@@ -1,7 +1,6 @@
 #include "graphics/host_gpu/renderer/cache/gpuResourceManager.h"

 #include "common/assert.h"
-#include "graphics/guest_gpu/command_processor/commandProcessor.h"
 #include "graphics/guest_gpu/graphicsRun.h"
 #include "graphics/host_gpu/renderer/commandScheduler.h"
 namespace Libs::Graphics {
@@ -18,69 +17,21 @@ bool GpuResourceManager::HandleFault(PageFaultAccess access, uint64_t fault_vadd
 	if (!IsMapped(fault_vaddr, fault_size)) {
 		return false;
 	}
-	if (CommandScheduler::InDeferredOperation()) {
-		EXIT("unsupported guest-memory fault from an asynchronous GPU completion, "
-		     "addr=0x%016" PRIx64 " access=%u\n",
-		     fault_vaddr, static_cast<uint32_t>(access));
+	if (access == PageFaultAccess::Write) {
+		m_buffer_cache.InvalidateMemory(fault_vaddr, fault_size);
+		m_texture_cache.InvalidateMemory(fault_vaddr, fault_size);
+	} else {
+		m_buffer_cache.ReadMemory(fault_vaddr, fault_size);
 	}
-	bool       handled = false;
-	const auto resolve = [this, access, fault_vaddr, &handled](CommandProcessor& cp) {
-		cp.BeginReadbackTransaction();
-		{
-			ResourceMutex::FaultScope fault(m_resource_mutex);
-			if (access == PageFaultAccess::Write) {
-				m_buffer_cache.InvalidateMemory(fault_vaddr, fault_size);
-				m_texture_cache.InvalidateMemory(fault_vaddr, fault_size);
-			} else {
-				m_buffer_cache.ReadMemory(fault_vaddr, fault_size);
-			}
-			handled = true;
-		}
-		cp.EndReadbackTransaction();
-	};
-	if (auto* cp = Gpu::CurrentCommandProcessor(); cp != nullptr) {
-		resolve(*cp);
-		return handled;
-	}
-	if (m_resource_mutex.IsOwnedByCurrentThread()) {
-		EXIT("unsupported page fault from a pre-owned resource transaction, addr=0x%016" PRIx64
-		     " access=%u\n",
-		     fault_vaddr, static_cast<uint32_t>(access));
-	}
-	EXIT_IF(m_gpu == nullptr);
-	m_gpu->SendCommandSyncWithProcessor(resolve);
-	return handled;
+	return true;
 }

 bool GpuResourceManager::InvalidateMemory(uint64_t vaddr, uint64_t size) {
 	if (!IsMapped(vaddr, size)) {
 		return false;
 	}
-	if (CommandScheduler::InDeferredOperation()) {
-		EXIT("unsupported memory invalidation from an asynchronous GPU completion, "
-		     "addr=0x%016" PRIx64 " size=0x%016" PRIx64 "\n",
-		     vaddr, size);
-	}
-	const auto resolve = [this, vaddr, size](CommandProcessor& cp) {
-		cp.BeginReadbackTransaction();
-		{
-			ResourceMutex::FaultScope fault(m_resource_mutex);
-			m_buffer_cache.InvalidateMemory(vaddr, size);
-			m_texture_cache.InvalidateMemory(vaddr, size);
-		}
-		cp.EndReadbackTransaction();
-	};
-	if (auto* cp = Gpu::CurrentCommandProcessor(); cp != nullptr) {
-		resolve(*cp);
-		return true;
-	}
-	if (m_resource_mutex.IsOwnedByCurrentThread()) {
-		EXIT("unsupported memory invalidation from a pre-owned resource transaction, "
-		     "addr=0x%016" PRIx64 " size=0x%016" PRIx64 "\n",
-		     vaddr, size);
-	}
-	EXIT_IF(m_gpu == nullptr);
-	m_gpu->SendCommandSyncWithProcessor(resolve);
+	m_buffer_cache.InvalidateMemory(vaddr, size);
+	m_texture_cache.InvalidateMemory(vaddr, size);
 	return true;
 }

@@ -4,18 +4,10 @@

 namespace Libs::Graphics {

-ResourceMutex::FaultScope::FaultScope(ResourceMutex& mutex): m_mutex(mutex) {
-	m_resource_preowned = m_mutex.BeginFault();
-}
-
-ResourceMutex::FaultScope::~FaultScope() {
-	m_mutex.EndFault(m_resource_preowned);
-}
-
 ResourceMutex::~ResourceMutex() {
 	std::lock_guard state(m_state);
-	if (m_resource_owner != std::thread::id {} || m_fault_owner != std::thread::id {}) {
-		EXIT("ResourceMutex destroyed with an active owner or fault transaction\n");
+	if (m_resource_owner != std::thread::id {}) {
+		EXIT("ResourceMutex destroyed with an active owner\n");
 	}
 }

@@ -26,9 +18,6 @@ void ResourceMutex::lock() {
 		if (m_resource_owner == current) {
 			EXIT("recursive resource transaction\n");
 		}
-		if (m_fault_owner == current) {
-			EXIT("resource transaction re-entered from a page-fault callback\n");
-		}
 	}
 	m_resource.lock();
 	std::lock_guard state(m_state);
@@ -55,39 +44,4 @@ bool ResourceMutex::IsOwnedByCurrentThread() {
 	return m_resource_owner == std::this_thread::get_id();
 }

-bool ResourceMutex::BeginFault() {
-	const auto current = std::this_thread::get_id();
-	{
-		std::lock_guard state(m_state);
-		if (m_fault_owner == current) {
-			EXIT("nested resource page-fault transaction\n");
-		}
-		if (m_resource_owner == current) {
-			m_fault_owner = current;
-			return true;
-		}
-	}
-	lock();
-	std::lock_guard state(m_state);
-	if (m_resource_owner != current || m_fault_owner != std::thread::id {}) {
-		EXIT("resource fault transaction acquired inconsistent ownership\n");
-	}
-	m_fault_owner = current;
-	return false;
-}
-
-void ResourceMutex::EndFault(bool resource_preowned) {
-	const auto current = std::this_thread::get_id();
-	{
-		std::lock_guard state(m_state);
-		if (m_fault_owner != current || m_resource_owner != current) {
-			EXIT("resource page-fault transaction ended with inconsistent ownership\n");
-		}
-		m_fault_owner = {};
-	}
-	if (!resource_preowned) {
-		unlock();
-	}
-}
-
 } // namespace Libs::Graphics
@@ -8,21 +8,9 @@

 namespace Libs::Graphics {

-// Owner-tracked shared buffer/image transaction. External faults pause GPU submissions first;
-// command-processor faults drain pending guest processors before entering this transaction.
+// Owner-tracked shared buffer/image transaction.
 class ResourceMutex final {
 public:
-	class FaultScope final {
-	public:
-		explicit FaultScope(ResourceMutex& mutex);
-		~FaultScope();
-		KYTY_CLASS_NO_COPY(FaultScope);
-
-	private:
-		ResourceMutex& m_mutex;
-		bool           m_resource_preowned = false;
-	};
-
 	ResourceMutex() = default;
 	~ResourceMutex();
 	KYTY_CLASS_NO_COPY(ResourceMutex);
@@ -32,15 +20,9 @@ public:
 	[[nodiscard]] bool IsOwnedByCurrentThread();

 private:
-	friend class FaultScope;
-
-	[[nodiscard]] bool BeginFault();
-	void               EndFault(bool resource_preowned);
-
 	std::mutex      m_resource;
 	std::mutex      m_state;
 	std::thread::id m_resource_owner;
-	std::thread::id m_fault_owner;
 };

 } // namespace Libs::Graphics
@@ -664,12 +664,10 @@ struct DrawIndexBufferSource {

 struct PreparedIndexBuffer {
 	std::shared_ptr<void> owner;
-	vk::Buffer            buffer   = nullptr;
-	uint64_t              address  = 0;
-	uint64_t              size     = 0;
-	vk::DeviceSize        offset   = 0;
-	vk::IndexType         type     = vk::IndexType::eUint16;
-	bool                  streamed = false;
+	vk::Buffer            buffer = nullptr;
+	uint64_t              size   = 0;
+	vk::DeviceSize        offset = 0;
+	vk::IndexType         type   = vk::IndexType::eUint16;
 };

 static uint64_t VertexBufferDescriptorSize(const ShaderVertexInputBuffer& buffer) {
@@ -896,12 +894,6 @@ static std::vector<BufferBinding> PrepareVertexBuffers(uint64_t
 	return AcquireVertexBuffers(buffer, vs_input_info);
 }

-static void RebindVertexBuffers(RenderCommandBuffer&         buffer,
-                                const ShaderVertexInputInfo& vs_input_info,
-                                std::vector<BufferBinding>&  bindings) {
-	bindings = AcquireVertexBuffers(buffer, vs_input_info);
-}
-
 static PreparedIndexBuffer PrepareIndexBuffer(RenderCommandBuffer&         buffer,
                                              const DrawIndexBufferSource& source) {
 	PreparedIndexBuffer prepared;
@@ -909,16 +901,14 @@ static PreparedIndexBuffer PrepareIndexBuffer(RenderCommandBuffer&         buffe
 		return prepared;
 	}
 	EXIT_IF(source.size == 0);
-	prepared.address = source.address;
-	prepared.size    = source.size;
-	prepared.type    = source.type;
+	prepared.size = source.size;
+	prepared.type = source.type;
 	if (source.host_data != nullptr) {
 		auto binding =
 		    buffer.GetContext().GetBufferCache().UploadTransient(source.host_data, source.size, 16);
-		prepared.owner    = std::move(binding.owner);
-		prepared.buffer   = binding.buffer;
-		prepared.offset   = binding.offset;
-		prepared.streamed = true;
+		prepared.owner  = std::move(binding.owner);
+		prepared.buffer = binding.buffer;
+		prepared.offset = binding.offset;
 	} else {
 		auto binding =
 		    buffer.GetContext().GetBufferCache().ObtainBuffer(buffer, source.address, source.size);
@@ -929,17 +919,6 @@ static PreparedIndexBuffer PrepareIndexBuffer(RenderCommandBuffer&         buffe
 	return prepared;
 }

-static void RebindIndexBuffer(RenderCommandBuffer& buffer, PreparedIndexBuffer& prepared) {
-	if (prepared.size == 0 || prepared.streamed) {
-		return;
-	}
-	auto binding =
-	    buffer.GetContext().GetBufferCache().ObtainBuffer(buffer, prepared.address, prepared.size);
-	prepared.owner  = std::move(binding.owner);
-	prepared.buffer = binding.buffer;
-	prepared.offset = binding.offset;
-}
-
 static void CommitVertexBuffers(RenderCommandBuffer& buffer, vk::CommandBuffer vk_buffer,
                                std::vector<BufferBinding>& bindings) {
 	for (uint32_t slot = 0; slot < bindings.size(); slot++) {
@@ -1046,8 +1025,6 @@ void RenderExecutor::ExecutePreparedDraw(uint64_t submit_id, RenderCommandBuffer
 	                                               state.ps_input_info.stage, state.ps_active);
 	auto vertex_bindings = PrepareVertexBuffers(submit_id, buffer, draw, state.vs_input_info);
 	auto index_binding   = PrepareIndexBuffer(buffer, index_source);
-	RebindVertexBuffers(buffer, state.vs_input_info, vertex_bindings);
-	RebindIndexBuffer(buffer, index_binding);
 	state.rendering =
 	    AcquireRenderTargets(buffer, state.color_info, state.color_count, state.depth_info);

@@ -0,0 +1,256 @@
+#include "graphics/presentation/window/hostInput.h"
+
+#include "SDL_keyboard.h"
+#include "SDL_keycode.h"
+#include "SDL_mouse.h"
+#include "common/assert.h"
+#include "common/emulatorConfig.h"
+#include "libs/controller.h"
+
+#include <algorithm>
+#include <array>
+#include <cstddef>
+#include <string>
+#include <string_view>
+#include <utility>
+
+namespace Libs::Graphics {
+
+namespace {
+
+struct Binding {
+	SDL_Keycode key          = SDLK_UNKNOWN;
+	uint8_t     mouse_button = 0;
+	uint32_t    pad_button   = 0;
+};
+
+static constexpr std::array PAD_BUTTONS = {
+    std::pair {std::string_view("L3"), Controller::PAD_BUTTON_L3},
+    std::pair {std::string_view("R3"), Controller::PAD_BUTTON_R3},
+    std::pair {std::string_view("Options"), Controller::PAD_BUTTON_OPTIONS},
+    std::pair {std::string_view("Up"), Controller::PAD_BUTTON_UP},
+    std::pair {std::string_view("Right"), Controller::PAD_BUTTON_RIGHT},
+    std::pair {std::string_view("Down"), Controller::PAD_BUTTON_DOWN},
+    std::pair {std::string_view("Left"), Controller::PAD_BUTTON_LEFT},
+    std::pair {std::string_view("L2"), Controller::PAD_BUTTON_L2},
+    std::pair {std::string_view("R2"), Controller::PAD_BUTTON_R2},
+    std::pair {std::string_view("L1"), Controller::PAD_BUTTON_L1},
+    std::pair {std::string_view("R1"), Controller::PAD_BUTTON_R1},
+    std::pair {std::string_view("Triangle"), Controller::PAD_BUTTON_TRIANGLE},
+    std::pair {std::string_view("Circle"), Controller::PAD_BUTTON_CIRCLE},
+    std::pair {std::string_view("Cross"), Controller::PAD_BUTTON_CROSS},
+    std::pair {std::string_view("Square"), Controller::PAD_BUTTON_SQUARE},
+    std::pair {std::string_view("TouchPad"), Controller::PAD_BUTTON_TOUCH_PAD},
+};
+
+uint32_t PadButtonFromName(std::string_view name) {
+	const auto button = std::find_if(PAD_BUTTONS.begin(), PAD_BUTTONS.end(),
+	                                 [name](const auto& item) { return item.first == name; });
+	return button != PAD_BUTTONS.end() ? button->second : 0;
+}
+
+SDL_Keycode NormalizeKey(SDL_Keycode key) {
+	switch (key) {
+		case SDLK_RSHIFT: return SDLK_LSHIFT;
+		case SDLK_RCTRL: return SDLK_LCTRL;
+		case SDLK_RALT: return SDLK_LALT;
+		case SDLK_RGUI: return SDLK_LGUI;
+		default: return key;
+	}
+}
+
+uint8_t MouseButtonFromName(std::string_view name) {
+	static constexpr std::array buttons = {
+	    std::pair {std::string_view("Mouse:Left"), uint8_t {SDL_BUTTON_LEFT}},
+	    std::pair {std::string_view("Mouse:Middle"), uint8_t {SDL_BUTTON_MIDDLE}},
+	    std::pair {std::string_view("Mouse:Right"), uint8_t {SDL_BUTTON_RIGHT}},
+	    std::pair {std::string_view("Mouse:X1"), uint8_t {SDL_BUTTON_X1}},
+	    std::pair {std::string_view("Mouse:X2"), uint8_t {SDL_BUTTON_X2}},
+	};
+
+	const auto button = std::find_if(buttons.begin(), buttons.end(),
+	                                 [name](const auto& item) { return item.first == name; });
+	return button != buttons.end() ? button->second : 0;
+}
+
+bool Conflicts(const Binding& first, const Binding& second) {
+	return first.pad_button == second.pad_button ||
+	       (first.key != SDLK_UNKNOWN && first.key == second.key) ||
+	       (first.mouse_button != 0 && first.mouse_button == second.mouse_button);
+}
+
+class InputMap {
+public:
+	InputMap(): m_custom(!Config::GetKeymap().empty()) {
+		for (const auto& value: Config::GetKeymap()) {
+			const std::string_view entry = value;
+			const auto             split = entry.find('=');
+
+			Binding binding;
+			if (split != std::string_view::npos) {
+				binding.pad_button    = PadButtonFromName(entry.substr(0, split));
+				const auto host_input = entry.substr(split + 1);
+				binding.mouse_button  = MouseButtonFromName(host_input);
+				if (binding.mouse_button == 0) {
+					binding.key = NormalizeKey(SDL_GetKeyFromName(std::string(host_input).c_str()));
+				}
+			}
+
+			const bool reserved =
+			    binding.key == SDLK_ESCAPE || binding.key == SDLK_SPACE || binding.key == SDLK_F1;
+			if (binding.pad_button == 0 || reserved ||
+			    (binding.key == SDLK_UNKNOWN && binding.mouse_button == 0)) {
+				EXIT("Invalid input mapping: %s\n", value.c_str());
+			}
+			Add(binding);
+		}
+	}
+	[[nodiscard]] bool Custom() const { return m_custom; }
+
+	[[nodiscard]] uint32_t FindKey(int key_code) const {
+		key_code = NormalizeKey(static_cast<SDL_Keycode>(key_code));
+		const auto binding =
+		    std::find_if(m_bindings.begin(), m_bindings.begin() + m_size,
+		                 [key_code](const auto& item) { return item.key == key_code; });
+		return binding != m_bindings.begin() + m_size ? binding->pad_button : 0;
+	}
+
+	[[nodiscard]] uint32_t FindMouseButton(uint8_t mouse_button) const {
+		const auto binding = std::find_if(
+		    m_bindings.begin(), m_bindings.begin() + m_size,
+		    [mouse_button](const auto& item) { return item.mouse_button == mouse_button; });
+		return binding != m_bindings.begin() + m_size ? binding->pad_button : 0;
+	}
+
+private:
+	void Add(const Binding& binding) {
+		for (std::size_t index = 0; index < m_size;) {
+			if (Conflicts(m_bindings[index], binding)) {
+				m_bindings[index] = m_bindings[--m_size];
+			} else {
+				index++;
+			}
+		}
+		EXIT_IF(m_size >= m_bindings.size());
+		m_bindings[m_size++] = binding;
+	}
+
+	std::array<Binding, PAD_BUTTONS.size()> m_bindings {};
+	std::size_t                             m_size = 0;
+	bool                                    m_custom;
+};
+
+const InputMap& GetInputMap() {
+	static const InputMap map;
+	return map;
+}
+
+void SetButton(uint32_t button, bool down) {
+	if (button == Controller::PAD_BUTTON_L2) {
+		Controller::ControllerAxis(Controller::HOST_INPUT_CONTROLLER_ID,
+		                           Controller::Axis::TriggerLeft, down ? 255 : 0);
+	} else if (button == Controller::PAD_BUTTON_R2) {
+		Controller::ControllerAxis(Controller::HOST_INPUT_CONTROLLER_ID,
+		                           Controller::Axis::TriggerRight, down ? 255 : 0);
+	} else if (button != 0) {
+		Controller::ControllerButton(Controller::HOST_INPUT_CONTROLLER_ID, button, down);
+	}
+}
+
+uint32_t DefaultKeyboardButton(int key_code) {
+	switch (NormalizeKey(static_cast<SDL_Keycode>(key_code))) {
+		case SDLK_UP: return Controller::PAD_BUTTON_UP;
+		case SDLK_LEFT: return Controller::PAD_BUTTON_LEFT;
+		case SDLK_DOWN: return Controller::PAD_BUTTON_DOWN;
+		case SDLK_RIGHT: return Controller::PAD_BUTTON_RIGHT;
+		case SDLK_j: return Controller::PAD_BUTTON_CROSS;
+		case SDLK_i: return Controller::PAD_BUTTON_TRIANGLE;
+		case SDLK_k: return Controller::PAD_BUTTON_SQUARE;
+		case SDLK_l: return Controller::PAD_BUTTON_CIRCLE;
+		case SDLK_q: return Controller::PAD_BUTTON_L1;
+		case SDLK_e: return Controller::PAD_BUTTON_R1;
+		case SDLK_LSHIFT: return Controller::PAD_BUTTON_L3;
+		case SDLK_LCTRL: return Controller::PAD_BUTTON_R3;
+		case SDLK_RETURN:
+		case SDLK_RETURN2: return Controller::PAD_BUTTON_OPTIONS;
+		case SDLK_BACKSPACE:
+		case SDLK_TAB: return Controller::PAD_BUTTON_TOUCH_PAD;
+		default: return 0;
+	}
+}
+
+struct StickKeys {
+	bool left  = false;
+	bool right = false;
+	bool up    = false;
+	bool down  = false;
+};
+
+void SetStickAxis(Controller::Axis axis, bool negative, bool positive) {
+	const int value = negative == positive ? 128 : negative ? 0 : 255;
+	Controller::ControllerAxis(Controller::HOST_INPUT_CONTROLLER_ID, axis, value);
+}
+
+void DefaultKeyboardInput(int key_code, bool down) {
+	static StickKeys left;
+	static StickKeys right;
+
+	switch (NormalizeKey(static_cast<SDL_Keycode>(key_code))) {
+		case SDLK_a:
+			left.left = down;
+			SetStickAxis(Controller::Axis::LeftX, left.left, left.right);
+			return;
+		case SDLK_d:
+			left.right = down;
+			SetStickAxis(Controller::Axis::LeftX, left.left, left.right);
+			return;
+		case SDLK_w:
+			left.up = down;
+			SetStickAxis(Controller::Axis::LeftY, left.up, left.down);
+			return;
+		case SDLK_s:
+			left.down = down;
+			SetStickAxis(Controller::Axis::LeftY, left.up, left.down);
+			return;
+		case SDLK_f:
+			right.left = down;
+			SetStickAxis(Controller::Axis::RightX, right.left, right.right);
+			return;
+		case SDLK_h:
+			right.right = down;
+			SetStickAxis(Controller::Axis::RightX, right.left, right.right);
+			return;
+		case SDLK_t:
+			right.up = down;
+			SetStickAxis(Controller::Axis::RightY, right.up, right.down);
+			return;
+		case SDLK_g:
+			right.down = down;
+			SetStickAxis(Controller::Axis::RightY, right.up, right.down);
+			return;
+		default: SetButton(DefaultKeyboardButton(key_code), down); return;
+	}
+}
+} // namespace
+
+void HostInputInit() {
+	GetInputMap();
+}
+
+void HostInputKey(int key_code, bool down) {
+	const auto& map = GetInputMap();
+	if (map.Custom()) {
+		SetButton(map.FindKey(key_code), down);
+	} else {
+		DefaultKeyboardInput(key_code, down);
+	}
+}
+
+void HostInputMouseButton(uint8_t mouse_button, bool down) {
+	const auto& map = GetInputMap();
+	if (map.Custom() && mouse_button != 0) {
+		SetButton(map.FindMouseButton(mouse_button), down);
+	}
+}
+
+} // namespace Libs::Graphics
@@ -0,0 +1,14 @@
+#ifndef KYTY_GRAPHICS_PRESENTATION_WINDOW_HOST_INPUT_H_
+#define KYTY_GRAPHICS_PRESENTATION_WINDOW_HOST_INPUT_H_
+
+#include <cstdint>
+
+namespace Libs::Graphics {
+
+void HostInputInit();
+void HostInputKey(int key_code, bool down);
+void HostInputMouseButton(uint8_t mouse_button, bool down);
+
+} // namespace Libs::Graphics
+
+#endif /* KYTY_GRAPHICS_PRESENTATION_WINDOW_HOST_INPUT_H_ */
@@ -789,12 +789,14 @@ void Presenter::Present(Frame& frame, bool reuse) {
 		    [&window] {
 			    window.UpdateIcon();
 			    SDL_ShowWindow(window.window);
+			    SDL_RaiseWindow(window.window);
 		    },
 		    true);
 #else
 		window.UpdateIcon();

 		SDL_ShowWindow(window.window);
+		SDL_RaiseWindow(window.window);
 #endif

 		window.window_hidden = false;
@@ -32,6 +32,7 @@
 #include "graphics/host_gpu/vma.h"
 #include "graphics/host_gpu/vulkanCommon.h"
 #include "graphics/presentation/renderDoc.h"
+#include "graphics/presentation/window/hostInput.h"
 #include "graphics/presentation/window/windowInternal.h"
 #include "kytyGitVersion.h"
 #include "libs/controller.h"
@@ -59,8 +60,6 @@

 namespace Libs::Graphics {

-constexpr int KEYBOARD_CONTROLLER_ID = -1000;
-
 struct EventKeyboard {
 	bool     down;
 	bool     up;
@@ -73,26 +72,6 @@ struct EventKeyboard {
 	double   timestamp_seconds;
 };

-static uint32_t KeyboardKeyToPadButton(int key_code) {
-	switch (key_code) {
-		case SDLK_w: return Controller::PAD_BUTTON_UP;
-		case SDLK_a: return Controller::PAD_BUTTON_LEFT;
-		case SDLK_s: return Controller::PAD_BUTTON_DOWN;
-		case SDLK_d: return Controller::PAD_BUTTON_RIGHT;
-		case SDLK_j: return Controller::PAD_BUTTON_CROSS;
-		case SDLK_i: return Controller::PAD_BUTTON_TRIANGLE;
-		case SDLK_k: return Controller::PAD_BUTTON_SQUARE;
-		case SDLK_l: return Controller::PAD_BUTTON_CIRCLE;
-		case SDLK_q: return Controller::PAD_BUTTON_L1;
-		case SDLK_e: return Controller::PAD_BUTTON_R1;
-		case SDLK_RETURN:
-		case SDLK_RETURN2: return Controller::PAD_BUTTON_OPTIONS;
-		case SDLK_BACKSPACE:
-		case SDLK_TAB: return Controller::PAD_BUTTON_TOUCH_PAD;
-		default: return 0;
-	}
-}
-
 static uint32_t ControllerButtonToPadButton(int button) {
 	switch (button) {
 		case SDL_CONTROLLER_BUTTON_A: return Controller::PAD_BUTTON_CROSS;
@@ -261,16 +240,11 @@ static void GameEventKeyboard(WindowLoopState& game, const EventKeyboard& key) {
 		}
 	}

-	const auto button = KeyboardKeyToPadButton(key.key_code);
-	if (button != 0 && (key.down || key.up) && !key.repeat) {
-		static bool keyboard_connected = false;
-		if (!keyboard_connected) {
-			Controller::ControllerConnect(KEYBOARD_CONTROLLER_ID);
-			keyboard_connected = true;
-		}
-		Controller::ControllerButton(KEYBOARD_CONTROLLER_ID, button, key.down);
-	}
 #endif
+
+	if ((key.down || key.up) && !key.repeat) {
+		HostInputKey(key.key_code, key.down);
+	}
 }

 static void GameEventMouse([[maybe_unused]] const EventMouse& mb) {
@@ -292,6 +266,23 @@ static void GameEventMouse([[maybe_unused]] const EventMouse& mb) {
 		     mb.x, mb.y);
 	}
 #endif
+
+	if (mb.down || mb.up) {
+		uint8_t mouse_button = 0;
+		if (mb.left) {
+			mouse_button = SDL_BUTTON_LEFT;
+		} else if (mb.middle) {
+			mouse_button = SDL_BUTTON_MIDDLE;
+		} else if (mb.right) {
+			mouse_button = SDL_BUTTON_RIGHT;
+		} else if (mb.x1) {
+			mouse_button = SDL_BUTTON_X1;
+		} else if (mb.x2) {
+			mouse_button = SDL_BUTTON_X2;
+		}
+
+		HostInputMouseButton(mouse_button, mb.down);
+	}
 }

 static void GameEventFinger([[maybe_unused]] const EventFinger& f) {
@@ -795,10 +786,14 @@ static void WindowCreate(WindowContext& context) {
 	if (SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER) < 0) {
 		EXIT("%s\n", SDL_GetError());
 	}
+	HostInputInit();

 	LOGF("WindowCreate(): width = %d, height = %d\n", width, height);

 	uint32_t window_flags = KYTY_SDL_WINDOW_FLAGS;
+	if (Config::FullscreenEnabled()) {
+		window_flags |= static_cast<uint32_t>(SDL_WINDOW_FULLSCREEN_DESKTOP);
+	}
 #if defined(__APPLE__)
 	// macOS 26 window chrome (CoreUI asset decode, SwiftUI titlebar) has been observed
 	// throwing NSExceptions under Rosetta during the first CATransaction commit. A
@@ -276,6 +276,10 @@ static std::filesystem::path ResolvePathIgnoringCase(const std::filesystem::path

 	return resolved;
 }
+#else
+static bool HasWindowsForbiddenFilenameCharacter(const std::string& relative_path) {
+	return relative_path.find_first_of("<>:\"|?*") != std::string::npos;
+}
 #endif

 std::filesystem::path MountPoints::GetRealFilename(const std::string& mounted_file_name) {
@@ -295,6 +299,10 @@ std::filesystem::path MountPoints::GetRealFilename(const std::string& mounted_fi
 			rel_path = Common::RemoveFirst(rel_path, 1);
 		}
 #if KYTY_PLATFORM == KYTY_PLATFORM_WINDOWS
+		if (HasWindowsForbiddenFilenameCharacter(rel_path)) {
+			::printf("FileSystem: Windows-incompatible guest filename: %s\n",
+			         mounted_file_name.c_str());
+		}
 		return p.dir / rel_path;
 #else
 		return ResolvePathIgnoringCase(p.dir / rel_path);
@@ -16,6 +16,7 @@ file(GLOB launcher_forms
 add_executable(launcher WIN32
 	${launcher_src}
 	${launcher_forms}
+	resources.qrc
 )


@@ -78,6 +78,16 @@
           </property>
          </widget>
         </item>
+         <item row="2" column="0">
+          <widget class="QCheckBox" name="checkBox_fullscreen">
+           <property name="toolTip">
+            <string>Run in borderless desktop fullscreen</string>
+           </property>
+           <property name="text">
+            <string>Fullscreen</string>
+           </property>
+          </widget>
+         </item>
        </layout>
       </widget>
      </item>
@@ -69,6 +69,31 @@
           </property>
          </widget>
         </item>
+         <item>
+          <widget class="QToolButton" name="input_mapping_button">
+           <property name="minimumSize">
+            <size>
+             <width>36</width>
+             <height>36</height>
+            </size>
+           </property>
+           <property name="toolTip">
+            <string>Edit input mapping</string>
+           </property>
+           <property name="text">
+            <string/>
+           </property>
+           <property name="iconSize">
+            <size>
+             <width>32</width>
+             <height>32</height>
+            </size>
+           </property>
+           <property name="autoRaise">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
         <item>
          <widget class="QToolButton" name="edit_button">
           <property name="minimumSize">
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <g fill="none" stroke="#e8f1ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2">
+    <path d="M8 4h11l5 5v7M24 9h-5V4M16 27H8a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2"/>
+    <path d="m15 24 1-4 8-8 4 4-8 8-4 1Z"/>
+    <path d="m22 14 4 4" opacity=".8"/>
+  </g>
+</svg>
@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <g fill="none" stroke="#e8f1ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2">
+    <path d="M5 8h3M14 8h13M5 16h13M24 16h3M5 24h6M17 24h10"/>
+    <circle cx="11" cy="8" r="3"/>
+    <circle cx="21" cy="16" r="3"/>
+    <circle cx="14" cy="24" r="3"/>
+  </g>
+</svg>
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <g fill="none" stroke="#e8f1ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2">
+    <path d="M10 10h12c3.6 0 5.8 2.3 6.6 6.8l.9 5.1c.4 2.4-.8 4.1-2.8 4.1-1.4 0-2.5-.7-3.6-2.3L21.3 21H10.7l-1.8 2.7C7.8 25.3 6.7 26 5.3 26c-2 0-3.2-1.7-2.8-4.1l.9-5.1C4.2 12.3 6.4 10 10 10Z"/>
+    <path d="M8 16h6M11 13v6"/>
+    <circle cx="22" cy="15" r="1" fill="#e8f1ff" stroke="none"/>
+    <circle cx="25" cy="18" r="1" fill="#e8f1ff" stroke="none"/>
+    <path d="M13 7h6M16 4v6" opacity=".8"/>
+  </g>
+</svg>
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <g fill="none" stroke="#e8f1ff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2">
+    <path d="M6 9h20M12 9V5h8v4M9 9l1 18h12l1-18"/>
+    <path d="M14 14v8M18 14v8" opacity=".8"/>
+  </g>
+</svg>
@@ -85,6 +85,7 @@ public:
 	QString    game_comment;

 	Resolution             screen_resolution           = Resolution::R1280X720;
+	bool                   fullscreen_enabled          = false;
 	int                    vblank_frequency            = 60;
 	int                    console_language            = DEFAULT_CONSOLE_LANGUAGE;
 	bool                   vulkan_validation_enabled   = true;
@@ -98,11 +99,13 @@ public:
 	QString                printf_output_file          = "_kyty.txt";
 	ProfilerDirection      profiler_direction          = ProfilerDirection::None;
 	bool                   renderdoc_enabled           = false;
+	QStringList            host_input_mapping;

 	QString elf = QStringLiteral("eboot.bin");

 	void CopyEmulatorSettingsFrom(const Configuration& other) {
 		screen_resolution           = other.screen_resolution;
+		fullscreen_enabled          = other.fullscreen_enabled;
 		vblank_frequency            = other.vblank_frequency;
 		console_language            = other.console_language;
 		vulkan_validation_enabled   = other.vulkan_validation_enabled;
@@ -116,6 +119,7 @@ public:
 		printf_output_file          = other.printf_output_file;
 		profiler_direction          = other.profiler_direction;
 		renderdoc_enabled           = other.renderdoc_enabled;
+		host_input_mapping          = other.host_input_mapping;
 	}

 	void CopyFrom(const Configuration& other) {
@@ -138,6 +142,7 @@ public:
 		KYTY_CFG_SET(game_path);
 		KYTY_CFG_SET(custom_settings);
 		KYTY_CFG_SET(screen_resolution);
+		KYTY_CFG_SET(fullscreen_enabled);
 		KYTY_CFG_SET(vblank_frequency);
 		KYTY_CFG_SET(console_language);
 		KYTY_CFG_SET(vulkan_validation_enabled);
@@ -151,6 +156,7 @@ public:
 		KYTY_CFG_SET(printf_output_file);
 		KYTY_CFG_SET(profiler_direction);
 		KYTY_CFG_SET(renderdoc_enabled);
+		s->setValue("host_input_mapping", host_input_mapping);
 		KYTY_CFG_SET(elf);
 	}

@@ -160,6 +166,7 @@ public:
 		KYTY_CFG_GET(game_path);
 		KYTY_CFG_GET(custom_settings);
 		KYTY_CFG_GET(screen_resolution);
+		KYTY_CFG_GET(fullscreen_enabled);
 		vblank_frequency = s->value("vblank_frequency", vblank_frequency).toInt();
 		console_language = s->value("console_language", console_language).toInt();
 		if (console_language < 0 || console_language > MAX_CONSOLE_LANGUAGE) {
@@ -176,7 +183,8 @@ public:
 		KYTY_CFG_GET(printf_output_file);
 		KYTY_CFG_GET(profiler_direction);
 		KYTY_CFG_GET(renderdoc_enabled);
-		elf = s->value("elf", elf).toString();
+		host_input_mapping = s->value("host_input_mapping", host_input_mapping).toStringList();
+		elf                = s->value("elf", elf).toString();
 	}
 };

@@ -38,7 +38,10 @@ public:

 	[[nodiscard]] const QString&     GetSettingsFile() const { return m_settings_file; }
 	[[nodiscard]] const QStringList& GetGameDirectories() const { return m_game_dirs; }
-	[[nodiscard]] bool               CanViewSelectedTrophies() const;
+	[[nodiscard]] const QStringList& GetHostInputMapping() const {
+		return m_global_info.host_input_mapping;
+	}
+	[[nodiscard]] bool CanViewSelectedTrophies() const;

 	bool EnsureGameDirectory();
 	void ScanGameDirectory();
@@ -58,6 +61,7 @@ protected slots:
 	void edit_configuration();
 	void delete_configuartion();
 	void edit_global_settings();
+	void edit_input_mapping();
 	void run_configuration();
 	void list_currentItemChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous);
 	void list_itemDoubleClicked(QTreeWidgetItem* witem, int column);
@@ -0,0 +1,31 @@
+#ifndef LAUNCHER_INCLUDE_INPUT_MAPPING_DIALOG_H_
+#define LAUNCHER_INCLUDE_INPUT_MAPPING_DIALOG_H_
+
+#include <QDialog>
+#include <QStringList>
+
+class QPushButton;
+class QTreeWidget;
+class QTreeWidgetItem;
+class QWidget;
+
+class InputMappingDialog final: public QDialog {
+public:
+	explicit InputMappingDialog(const QStringList& mapping, QWidget* parent = nullptr);
+
+	[[nodiscard]] QStringList Mapping() const;
+
+private:
+	void ChangeBinding();
+	void ClearBinding();
+	void RestoreDefaults();
+	void SetBinding(QTreeWidgetItem* item, const QString& binding);
+	void UpdateButtons();
+
+	QTreeWidget* m_bindings      = nullptr;
+	QPushButton* m_change_button = nullptr;
+	QPushButton* m_clear_button  = nullptr;
+	bool         m_customized    = false;
+};
+
+#endif /* LAUNCHER_INCLUDE_INPUT_MAPPING_DIALOG_H_ */
@@ -0,0 +1,8 @@
+<RCC>
+ <qresource prefix="/icons">
+  <file alias="edit-configuration.svg">icons/edit-configuration.svg</file>
+  <file alias="global-settings.svg">icons/global-settings.svg</file>
+  <file alias="input-mapping.svg">icons/input-mapping.svg</file>
+  <file alias="remove-configuration.svg">icons/remove-configuration.svg</file>
+ </qresource>
+</RCC>
@@ -153,6 +153,7 @@ static void ListInit(QComboBox* combo, T value) {

 void ConfigurationEditDialog::Init(const Configuration& info) {
 	ListInit(m_ui->comboBox_screen_resolution, info.screen_resolution);
+	m_ui->checkBox_fullscreen->setChecked(info.fullscreen_enabled);
 	m_ui->spinBox_vblank_frequency->setValue(info.vblank_frequency);
 	m_ui->comboBox_console_language->clear();
 	m_ui->comboBox_console_language->addItems(CONSOLE_LANGUAGE_NAMES);
@@ -279,6 +280,7 @@ void ConfigurationEditDialog::moveEvent(QMoveEvent* event) {
 static void UpdateInfo(Configuration& info, Ui::ConfigurationEditDialog& ui) {
 	info.screen_resolution =
 	    TextToEnum<Configuration::Resolution>(ui.comboBox_screen_resolution->currentText());
+	info.fullscreen_enabled        = ui.checkBox_fullscreen->isChecked();
 	info.vblank_frequency          = ui.spinBox_vblank_frequency->value();
 	info.console_language          = ui.comboBox_console_language->currentIndex();
 	info.vulkan_validation_enabled = ui.checkBox_vulkan_validation->isChecked();
@@ -6,6 +6,7 @@
 #include "configurationEditDialog.h"
 #include "configurationItem.h"
 #include "gameListTreeWidget.h"
+#include "inputMappingDialog.h"
 #include "mainDialog.h"
 #include "patchesDialog.h"
 #include "trophyViewerDialog.h"
@@ -169,6 +170,7 @@ static void ApplyGameListStyle(Ui::ConfigurationListWidget* ui) {
 	    "QToolButton:disabled { background: transparent; }"));
 	ui->edit_button->setStyleSheet(ui->global_settings_button->styleSheet());
 	ui->delete_button->setStyleSheet(ui->global_settings_button->styleSheet());
+	ui->input_mapping_button->setStyleSheet(ui->global_settings_button->styleSheet());
 }

 static void AddSaveDataDir(QStringList* dirs, QSet<QString>* seen, const QString& root,
@@ -226,10 +228,12 @@ ConfigurationListWidget::ConfigurationListWidget(QWidget* parent)
 	m_ui->setupUi(this);
 	ApplyGameListStyle(m_ui);

-	m_ui->global_settings_button->setIcon(style()->standardIcon(QStyle::SP_FileDialogDetailedView));
+	m_ui->global_settings_button->setIcon(QIcon(QStringLiteral(":/icons/global-settings.svg")));
 	m_ui->global_settings_button->setToolTip(tr("Edit global settings and game folders"));
-	m_ui->edit_button->setIcon(style()->standardIcon(QStyle::SP_FileIcon));
-	m_ui->delete_button->setIcon(style()->standardIcon(QStyle::SP_DialogDiscardButton));
+	m_ui->input_mapping_button->setIcon(QIcon(QStringLiteral(":/icons/input-mapping.svg")));
+	m_ui->input_mapping_button->setToolTip(tr("Edit global input mapping"));
+	m_ui->edit_button->setIcon(QIcon(QStringLiteral(":/icons/edit-configuration.svg")));
+	m_ui->delete_button->setIcon(QIcon(QStringLiteral(":/icons/remove-configuration.svg")));

 	m_ui->delete_button->setEnabled(false);
 	m_ui->edit_button->setEnabled(false);
@@ -249,6 +253,8 @@ ConfigurationListWidget::ConfigurationListWidget(QWidget* parent)

 	connect(m_ui->global_settings_button, &QToolButton::clicked, this,
 	        &ConfigurationListWidget::edit_global_settings);
+	connect(m_ui->input_mapping_button, &QToolButton::clicked, this,
+	        &ConfigurationListWidget::edit_input_mapping);
 	connect(m_ui->edit_button, &QToolButton::clicked, this,
 	        &ConfigurationListWidget::edit_configuration);
 	connect(m_ui->delete_button, &QToolButton::clicked, this,
@@ -717,6 +723,14 @@ void ConfigurationListWidget::edit_global_settings() {
 	}
 }

+void ConfigurationListWidget::edit_input_mapping() {
+	InputMappingDialog dialog(m_global_info.host_input_mapping, this);
+	if (dialog.exec() == QDialog::Accepted) {
+		m_global_info.host_input_mapping = dialog.Mapping();
+		WriteSettings();
+	}
+}
+
 void ConfigurationListWidget::ClearCustomSettings(ConfigurationItem* item) {
 	delete m_custom_infos.take(item->GetInfo().game_path);
 }
@@ -0,0 +1,311 @@
+#include "inputMappingDialog.h"
+
+#include <QAbstractItemView>
+#include <QDialogButtonBox>
+#include <QHBoxLayout>
+#include <QHash>
+#include <QHeaderView>
+#include <QKeyEvent>
+#include <QKeySequence>
+#include <QLabel>
+#include <QMouseEvent>
+#include <QPushButton>
+#include <QStringList>
+#include <QTreeWidget>
+#include <QVBoxLayout>
+
+namespace {
+
+constexpr int BINDING_COLUMN = 1;
+
+struct PadButton {
+	const char* id;
+	const char* label;
+	const char* default_binding;
+};
+
+constexpr PadButton PAD_BUTTONS[] = {
+    {"Up", "D-pad Up", "Up"},
+    {"Down", "D-pad Down", "Down"},
+    {"Left", "D-pad Left", "Left"},
+    {"Right", "D-pad Right", "Right"},
+    {"Triangle", "Triangle", "I"},
+    {"Circle", "Circle", "L"},
+    {"Cross", "Cross", "J"},
+    {"Square", "Square", "K"},
+    {"L1", "L1", "Q"},
+    {"R1", "R1", "E"},
+    {"L2", "L2", ""},
+    {"R2", "R2", ""},
+    {"L3", "L3", "Left Shift"},
+    {"R3", "R3", "Left Ctrl"},
+    {"Options", "Options", "Return"},
+    {"TouchPad", "Touch pad", "Backspace"},
+};
+
+QString KeypadName(int key) {
+	if (key >= Qt::Key_0 && key <= Qt::Key_9) {
+		return QStringLiteral("Keypad %1").arg(key - Qt::Key_0);
+	}
+
+	switch (key) {
+		case Qt::Key_Return:
+		case Qt::Key_Enter: return QStringLiteral("Keypad Enter");
+		case Qt::Key_Slash: return QStringLiteral("Keypad /");
+		case Qt::Key_Asterisk: return QStringLiteral("Keypad *");
+		case Qt::Key_Minus: return QStringLiteral("Keypad -");
+		case Qt::Key_Plus: return QStringLiteral("Keypad +");
+		case Qt::Key_Period: return QStringLiteral("Keypad .");
+		case Qt::Key_Equal: return QStringLiteral("Keypad =");
+		case Qt::Key_Comma: return QStringLiteral("Keypad ,");
+		default: return {};
+	}
+}
+
+QString KeyName(const QKeyEvent& event) {
+	const int key = event.key();
+	if (event.modifiers().testFlag(Qt::KeypadModifier)) {
+		return KeypadName(key);
+	}
+	if (key >= Qt::Key_A && key <= Qt::Key_Z) {
+		return QChar(key);
+	}
+	if (key >= Qt::Key_0 && key <= Qt::Key_9) {
+		return QChar(key);
+	}
+	if (key >= Qt::Key_F1 && key <= Qt::Key_F24) {
+		return QStringLiteral("F%1").arg(key - Qt::Key_F1 + 1);
+	}
+
+	switch (key) {
+		case Qt::Key_Return:
+		case Qt::Key_Enter: return QStringLiteral("Return");
+		case Qt::Key_Backspace: return QStringLiteral("Backspace");
+		case Qt::Key_Tab: return QStringLiteral("Tab");
+		case Qt::Key_Shift: return QStringLiteral("Left Shift");
+		case Qt::Key_Control: return QStringLiteral("Left Ctrl");
+		case Qt::Key_Alt: return QStringLiteral("Left Alt");
+		case Qt::Key_Meta: return QStringLiteral("Left GUI");
+		case Qt::Key_Insert: return QStringLiteral("Insert");
+		case Qt::Key_Delete: return QStringLiteral("Delete");
+		case Qt::Key_Home: return QStringLiteral("Home");
+		case Qt::Key_End: return QStringLiteral("End");
+		case Qt::Key_PageUp: return QStringLiteral("PageUp");
+		case Qt::Key_PageDown: return QStringLiteral("PageDown");
+		case Qt::Key_Left: return QStringLiteral("Left");
+		case Qt::Key_Right: return QStringLiteral("Right");
+		case Qt::Key_Up: return QStringLiteral("Up");
+		case Qt::Key_Down: return QStringLiteral("Down");
+		case Qt::Key_CapsLock: return QStringLiteral("CapsLock");
+		case Qt::Key_NumLock: return QStringLiteral("Numlock");
+		case Qt::Key_ScrollLock: return QStringLiteral("ScrollLock");
+		case Qt::Key_Pause: return QStringLiteral("Pause");
+		case Qt::Key_Print: return QStringLiteral("PrintScreen");
+		default: break;
+	}
+
+	if (event.modifiers() != Qt::NoModifier) {
+		return {};
+	}
+	const auto name = QKeySequence(key).toString(QKeySequence::PortableText);
+	return name.size() == 1 ? name : QString();
+}
+
+class InputCaptureDialog final: public QDialog {
+public:
+	explicit InputCaptureDialog(QWidget* parent): QDialog(parent) {
+		setWindowTitle(tr("Set Binding"));
+		setModal(true);
+		setMinimumWidth(360);
+
+		auto* layout = new QVBoxLayout(this);
+		m_label      = new QLabel(
+		    tr("Press a key or mouse button.\nSpace and F1 are reserved; Esc cancels."), this);
+		m_label->setAlignment(Qt::AlignCenter);
+		layout->addWidget(m_label);
+	}
+
+	[[nodiscard]] const QString& Binding() const { return m_binding; }
+
+protected:
+	void keyPressEvent(QKeyEvent* event) override {
+		if (event->isAutoRepeat()) {
+			return;
+		}
+		if (event->key() == Qt::Key_Escape) {
+			reject();
+			return;
+		}
+		if (event->key() == Qt::Key_Space || event->key() == Qt::Key_F1) {
+			m_label->setText(tr("That key is reserved by the emulator."));
+			return;
+		}
+
+		m_binding = KeyName(*event);
+		if (!m_binding.isEmpty()) {
+			accept();
+		} else {
+			m_label->setText(tr("That key is not supported."));
+		}
+	}
+
+	void mousePressEvent(QMouseEvent* event) override {
+		switch (event->button()) {
+			case Qt::LeftButton: m_binding = QStringLiteral("Mouse:Left"); break;
+			case Qt::RightButton: m_binding = QStringLiteral("Mouse:Right"); break;
+			case Qt::MiddleButton: m_binding = QStringLiteral("Mouse:Middle"); break;
+			case Qt::BackButton: m_binding = QStringLiteral("Mouse:X1"); break;
+			case Qt::ForwardButton: m_binding = QStringLiteral("Mouse:X2"); break;
+			default: return;
+		}
+		accept();
+	}
+
+private:
+	QLabel* m_label = nullptr;
+	QString m_binding;
+};
+
+QHash<QString, QString> ParseMapping(const QStringList& mapping) {
+	QHash<QString, QString> result;
+	for (const auto& entry: mapping) {
+		const auto separator = entry.indexOf(QLatin1Char('='));
+		if (separator > 0 && separator + 1 < entry.size()) {
+			const auto binding = entry.mid(separator + 1);
+			for (auto item = result.begin(); item != result.end();) {
+				if (item.value().compare(binding, Qt::CaseInsensitive) == 0) {
+					item = result.erase(item);
+				} else {
+					++item;
+				}
+			}
+			result.insert(entry.left(separator), binding);
+		}
+	}
+	return result;
+}
+
+} // namespace
+
+InputMappingDialog::InputMappingDialog(const QStringList& mapping, QWidget* parent)
+    : QDialog(parent), m_customized(!mapping.isEmpty()) {
+	setWindowTitle(tr("Input Mapping"));
+	resize(440, 520);
+
+	auto* layout = new QVBoxLayout(this);
+	layout->addWidget(new QLabel(tr("Map keyboard or mouse input to DualSense buttons.\n"
+	                                "Defaults: left stick W/A/S/D, right stick T/F/G/H."),
+	                             this));
+
+	m_bindings = new QTreeWidget(this);
+	m_bindings->setColumnCount(2);
+	m_bindings->setHeaderLabels({tr("DualSense button"), tr("Host input")});
+	m_bindings->setRootIsDecorated(false);
+	m_bindings->setSelectionMode(QAbstractItemView::SingleSelection);
+	m_bindings->header()->setSectionResizeMode(0, QHeaderView::Stretch);
+	m_bindings->header()->setSectionResizeMode(1, QHeaderView::Stretch);
+	layout->addWidget(m_bindings);
+
+	const auto parsed = ParseMapping(mapping);
+	for (const auto& button: PAD_BUTTONS) {
+		auto* item = new QTreeWidgetItem(m_bindings);
+		item->setText(0, tr(button.label));
+		item->setData(0, Qt::UserRole, QString::fromLatin1(button.id));
+		SetBinding(item, m_customized ? parsed.value(QString::fromLatin1(button.id))
+		                              : QString::fromLatin1(button.default_binding));
+	}
+	m_bindings->setCurrentItem(m_bindings->topLevelItem(0));
+
+	auto* controls  = new QHBoxLayout;
+	m_change_button = new QPushButton(tr("Change..."), this);
+	m_clear_button  = new QPushButton(tr("Clear"), this);
+	auto* defaults  = new QPushButton(tr("Defaults"), this);
+	controls->addWidget(m_change_button);
+	controls->addWidget(m_clear_button);
+	controls->addWidget(defaults);
+	controls->addStretch();
+	layout->addLayout(controls);
+
+	auto* buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
+	layout->addWidget(buttons);
+
+	connect(m_bindings, &QTreeWidget::itemDoubleClicked, this,
+	        [this](QTreeWidgetItem*, int) { ChangeBinding(); });
+	connect(m_bindings, &QTreeWidget::itemSelectionChanged, this, [this]() { UpdateButtons(); });
+	connect(m_change_button, &QPushButton::clicked, this, [this]() { ChangeBinding(); });
+	connect(m_clear_button, &QPushButton::clicked, this, [this]() { ClearBinding(); });
+	connect(defaults, &QPushButton::clicked, this, [this]() { RestoreDefaults(); });
+	connect(buttons, &QDialogButtonBox::accepted, this, &QDialog::accept);
+	connect(buttons, &QDialogButtonBox::rejected, this, &QDialog::reject);
+	UpdateButtons();
+}
+
+QStringList InputMappingDialog::Mapping() const {
+	QStringList result;
+	if (!m_customized) {
+		return result;
+	}
+	for (int index = 0; index < m_bindings->topLevelItemCount(); index++) {
+		const auto* item    = m_bindings->topLevelItem(index);
+		const auto  binding = item->data(BINDING_COLUMN, Qt::UserRole).toString();
+		if (!binding.isEmpty()) {
+			result.append(item->data(0, Qt::UserRole).toString() + QLatin1Char('=') + binding);
+		}
+	}
+	return result;
+}
+
+void InputMappingDialog::ChangeBinding() {
+	auto* item = m_bindings->currentItem();
+	if (item == nullptr) {
+		return;
+	}
+
+	InputCaptureDialog dialog(this);
+	if (dialog.exec() != QDialog::Accepted) {
+		return;
+	}
+
+	for (int index = 0; index < m_bindings->topLevelItemCount(); index++) {
+		auto* other = m_bindings->topLevelItem(index);
+		if (other != item && other->data(BINDING_COLUMN, Qt::UserRole)
+		                             .toString()
+		                             .compare(dialog.Binding(), Qt::CaseInsensitive) == 0) {
+			SetBinding(other, {});
+		}
+	}
+	SetBinding(item, dialog.Binding());
+	m_customized = true;
+}
+
+void InputMappingDialog::ClearBinding() {
+	SetBinding(m_bindings->currentItem(), {});
+	m_customized = true;
+}
+
+void InputMappingDialog::RestoreDefaults() {
+	for (int index = 0; index < m_bindings->topLevelItemCount(); index++) {
+		SetBinding(m_bindings->topLevelItem(index),
+		           QString::fromLatin1(PAD_BUTTONS[index].default_binding));
+	}
+	m_customized = false;
+}
+
+void InputMappingDialog::SetBinding(QTreeWidgetItem* item, const QString& binding) {
+	if (item == nullptr) {
+		return;
+	}
+	item->setData(BINDING_COLUMN, Qt::UserRole, binding);
+	item->setText(BINDING_COLUMN, binding.isEmpty() ? tr("None") : binding);
+	UpdateButtons();
+}
+
+void InputMappingDialog::UpdateButtons() {
+	if (m_change_button == nullptr) {
+		return;
+	}
+	const auto* item = m_bindings->currentItem();
+	m_change_button->setEnabled(item != nullptr);
+	m_clear_button->setEnabled(item != nullptr &&
+	                           !item->data(BINDING_COLUMN, Qt::UserRole).toString().isEmpty());
+}
@@ -204,6 +204,9 @@ static QStringList CreateEmulatorArgs(const Configuration& info) {

 	args << "--screen-width" << r.at(0);
 	args << "--screen-height" << r.at(1);
+	if (info.fullscreen_enabled) {
+		args << "--fullscreen";
+	}
 	args << "--vblank-frequency" << QString::number(info.vblank_frequency);
 	args << "--console-language" << QString::number(info.console_language);
 	args << "--vulkan-validation" << BoolArg(info.vulkan_validation_enabled);
@@ -217,6 +220,9 @@ static QStringList CreateEmulatorArgs(const Configuration& info) {
 	args << "--printf-output-file" << info.printf_output_file;
 	args << "--profiler-direction" << EnumToText(info.profiler_direction);
 	args << "--spirv-debug-printf" << "false";
+	for (const auto& binding: info.host_input_mapping) {
+		args << "--keymap" << binding;
+	}
 	if (info.renderdoc_enabled) {
 		args << "--rd";
 	}
@@ -435,7 +441,10 @@ void MainDialogPrivate::Run() {

 	m_running_item->SetRunning(true);

-	m_main_dialog->RunInterpreter(&m_process, m_running_item->GetInfo());
+	Configuration info;
+	info.CopyFrom(m_running_item->GetInfo());
+	info.host_input_mapping = m_ui->widget->GetHostInputMapping();
+	m_main_dialog->RunInterpreter(&m_process, info);

 	Update();
 }
@@ -85,8 +85,6 @@ private:

 static GameController* g_controller = nullptr;

-static constexpr int KEYBOARD_CONTROLLER_ID = -1000;
-
 static uint8_t pad_connected_count_to_u8(int connected_count) {
 	return static_cast<uint8_t>(connected_count > 255 ? 255 : connected_count);
 }
@@ -117,7 +115,7 @@ KYTY_SUBSYSTEM_INIT(Controller) {
 	EXIT_IF(g_controller != nullptr);

 	g_controller = new GameController;
-	g_controller->Connect(KEYBOARD_CONTROLLER_ID);
+	g_controller->Connect(HOST_INPUT_CONTROLLER_ID);
 }

 KYTY_SUBSYSTEM_UNEXPECTED_SHUTDOWN(Controller) {}
@@ -155,7 +153,7 @@ void GameController::CheckActive() {
 	if (!m_connected_ids.empty()) {
 		new_active_id = m_connected_ids[0];
 		for (const auto id: m_connected_ids) {
-			if (id != KEYBOARD_CONTROLLER_ID) {
+			if (id != HOST_INPUT_CONTROLLER_ID) {
 				new_active_id = id;
 				break;
 			}
@@ -9,6 +9,8 @@ namespace Libs::Controller {

 KYTY_SUBSYSTEM_DEFINE(Controller);

+constexpr int HOST_INPUT_CONTROLLER_ID = -1000;
+
 constexpr uint32_t PAD_BUTTON_L3        = 0x00000002;
 constexpr uint32_t PAD_BUTTON_R3        = 0x00000004;
 constexpr uint32_t PAD_BUTTON_OPTIONS   = 0x00000008;
@@ -47,6 +47,7 @@ static void PrintUsage() {
 	    "  --game-patch <json>                  Validated patch plan to apply before entry.\n");
 	::printf("  --screen-width <num>                 Window width. Default: 1280.\n");
 	::printf("  --screen-height <num>                Window height. Default: 720.\n");
+	::printf("  --fullscreen                         Run in borderless desktop fullscreen.\n");
 	::printf("  --vblank-frequency <num>             Virtual vblank frequency. Default: 60.\n");
 	::printf("  --console-language <0-29>            Console language. Default: 1 (English US).\n");
 	::printf("  --vulkan-validation <true|false>     Enable Vulkan validation.\n");
@@ -63,6 +64,7 @@ static void PrintUsage() {
 	::printf("  --spirv-debug-printf <true|false>    Enable SPIR-V debug printf.\n");
 	::printf(
 	    "  --readback-linear-images <true|false> Read back writable linear images on submit.\n");
+	::printf("  --keymap <Pad=Key>                   DualSense mapping; may be repeated.\n");
 	::printf("  --rd                                 Enable RenderDoc capture.\n");
 }

@@ -131,6 +133,11 @@ static bool ParseArgs(int argc, char* argv[], RunOptions& options, bool& show_he
 			continue;
 		}

+		if (arg == "--fullscreen") {
+			options.config.fullscreen_enabled = true;
+			continue;
+		}
+
 		if (!Common::StartsWith(arg, "--")) {
 			::printf("game input must be provided with --game\n");
 			return false;
@@ -241,6 +248,13 @@ static bool ParseArgs(int argc, char* argv[], RunOptions& options, bool& show_he
 				::printf("invalid boolean for %s: %s\n", arg.c_str(), value.c_str());
 				return false;
 			}
+		} else if (arg == "--keymap") {
+			const auto split = value.find('=');
+			if (split == std::string::npos || split == 0 || split + 1 == value.size()) {
+				::printf("invalid keymap: %s\n", value.c_str());
+				return false;
+			}
+			options.config.keymap.push_back(value);
 		} else {
 			::printf("unknown option: %s\n", arg.c_str());
 			return false;
@@ -6,7 +6,9 @@
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
+#include <semaphore>
 #include <string>
+#include <thread>
 #include <vector>

 #if KYTY_PLATFORM == KYTY_PLATFORM_WINDOWS
@@ -265,6 +267,7 @@ void TestRangeInvalidation() {
    flushes++;
    tracker.ForEachDownloadRange<true>(address + 16, size - 32,
                                       [](uint64_t, uint64_t) noexcept {});
+    tracker.MarkRegionAsCpuModified(address + 16, size - 32);
  });
  Check(flushes == 1 && !tracker.IsRegionGpuModified(address, size) &&
            tracker.IsRegionCpuModified(address, size) && IsWritable(memory) &&
@@ -277,6 +280,53 @@ void TestRangeInvalidation() {
  Release(page_manager, memory, size);
 }

+void TestGpuReacquisitionAfterInvalidation() {
+  TrackerHarness harness;
+  auto &tracker = harness.tracker;
+  auto &page_manager = harness.page_manager;
+  const auto page_size = page_manager.GetPageSize();
+  auto *memory = Allocate(page_manager, 1);
+  const auto address = reinterpret_cast<uint64_t>(memory);
+
+  tracker.ForEachUploadRange(
+      address, page_size, true, [](uint64_t, uint64_t) noexcept {},
+      []() noexcept {});
+  Check(tracker.IsRegionGpuModified(address, page_size) &&
+            !tracker.IsRegionCpuModified(address, page_size),
+        "reacquisition setup did not establish GPU ownership");
+
+  uint32_t flushes = 0;
+  uint32_t uploads = 0;
+  std::binary_semaphore reacquire{0};
+  std::binary_semaphore reacquired{0};
+  std::jthread publisher([&] {
+    reacquire.acquire();
+    tracker.ForEachUploadRange(
+        address + 16, 32, true,
+        [&](uint64_t, uint64_t) noexcept { uploads++; }, []() noexcept {});
+    reacquired.release();
+  });
+  tracker.InvalidateRegion(address + 16, 32, [&] {
+    flushes++;
+    tracker.ForEachDownloadRange<true>(address + 16, 32,
+                                       [](uint64_t, uint64_t) noexcept {});
+    tracker.MarkRegionAsCpuModified(address + 16, 32);
+    reacquire.release();
+    reacquired.acquire();
+  });
+  publisher.join();
+  Check(flushes == 1 && uploads == 1 &&
+            tracker.IsRegionGpuModified(address, page_size) &&
+            !tracker.IsRegionCpuModified(address, page_size) &&
+            !IsWritable(memory),
+        "invalidation rejected a new generation of GPU ownership");
+
+  tracker.UnmarkRegionAsGpuModified(address, page_size);
+  tracker.MarkRegionAsCpuModified(address, page_size);
+  tracker.UntrackMemory(address, page_size);
+  Release(page_manager, memory, page_size);
+}
+
 void TestGpuDirtyBits() {
  TrackerHarness harness;
  auto &tracker = harness.tracker;
@@ -635,6 +685,7 @@ int main(int argc, char **argv) {
  TestQueriesDoNotRequireMappedOwnership();
  TestCpuDirtyUpload();
  TestRangeInvalidation();
+  TestGpuReacquisitionAfterInvalidation();
  TestGpuDirtyBits();
  TestExactDirtyIntervalsSharingTrackerPage();
  TestGpuDownloadProtectionMirrors();
@@ -35,171 +35,50 @@ void YieldMany() {
 	}
 }

-void TestFaultBlocksPublisher() {
-	ResourceMutex    mutex;
-	std::atomic_bool publisher_started {false};
-	std::atomic_bool publisher_entered {false};
-	std::thread      publisher;
+void TestOwnership() {
+	ResourceMutex mutex;
+	Check(!mutex.IsOwnedByCurrentThread(), "fresh mutex reported an owner");
 	{
-		ResourceMutex::FaultScope fault(mutex);
-		publisher = std::thread([&] {
-			publisher_started.store(true, std::memory_order_release);
-			std::lock_guard lock(mutex);
-			publisher_entered.store(true, std::memory_order_release);
-		});
-		while (!publisher_started.load(std::memory_order_acquire)) {
-			std::this_thread::yield();
-		}
-		YieldMany();
-		Check(!publisher_entered.load(std::memory_order_acquire),
-		      "publisher entered during active fault transaction");
+		std::lock_guard lock(mutex);
+		Check(mutex.IsOwnedByCurrentThread(), "owner tracking was not installed");
 	}
-	publisher.join();
-	Check(publisher_entered.load(std::memory_order_acquire),
-	      "publisher did not resume after fault transaction");
+	Check(!mutex.IsOwnedByCurrentThread(), "owner tracking survived unlock");
 }

-void TestFaultDrainsExistingOwner() {
+void TestSerializesTransactions() {
 	ResourceMutex    mutex;
 	std::unique_lock owner(mutex);
-	std::atomic_bool fault_started {false};
-	std::atomic_bool fault_entered {false};
-	std::atomic_bool release_fault {false};
-	std::atomic_bool publisher_started {false};
-	std::atomic_bool publisher_entered {false};
-	std::thread      fault([&] {
-		fault_started.store(true, std::memory_order_release);
-		ResourceMutex::FaultScope scope(mutex);
-		fault_entered.store(true, std::memory_order_release);
-		while (!release_fault.load(std::memory_order_acquire)) {
-			std::this_thread::yield();
-		}
-	});
-	while (!fault_started.load(std::memory_order_acquire)) {
-		std::this_thread::yield();
-	}
-	YieldMany();
-	Check(!fault_entered.load(std::memory_order_acquire),
-	      "fault transaction did not wait for existing owner");
-	owner.unlock();
-	while (!fault_entered.load(std::memory_order_acquire)) {
-		std::this_thread::yield();
-	}
-	std::thread publisher([&] {
-		publisher_started.store(true, std::memory_order_release);
+	std::atomic_bool contender_started {false};
+	std::atomic_bool contender_entered {false};
+	std::thread      contender([&] {
+		contender_started.store(true, std::memory_order_release);
 		std::lock_guard lock(mutex);
-		publisher_entered.store(true, std::memory_order_release);
+		contender_entered.store(true, std::memory_order_release);
 	});
-	while (!publisher_started.load(std::memory_order_acquire)) {
+	while (!contender_started.load(std::memory_order_acquire)) {
 		std::this_thread::yield();
 	}
 	YieldMany();
-	Check(!publisher_entered.load(std::memory_order_acquire),
-	      "publisher entered before drained fault completed");
-	release_fault.store(true, std::memory_order_release);
-	fault.join();
-	publisher.join();
-	Check(publisher_entered.load(std::memory_order_acquire),
-	      "publisher did not resume after drained fault");
-}
-
-void TestFaultScopesSerialize() {
-	ResourceMutex    mutex;
-	std::atomic_bool first_entered {false};
-	std::atomic_bool second_started {false};
-	std::atomic_bool second_entered {false};
-	std::atomic_bool release_first {false};
-	std::atomic_bool release_second {false};
-	std::atomic_bool publisher_entered {false};
-	std::thread      first([&] {
-		ResourceMutex::FaultScope scope(mutex);
-		first_entered.store(true, std::memory_order_release);
-		while (!release_first.load(std::memory_order_acquire)) {
-			std::this_thread::yield();
-		}
-	});
-	while (!first_entered.load(std::memory_order_acquire)) {
-		std::this_thread::yield();
-	}
-	std::thread second([&] {
-		second_started.store(true, std::memory_order_release);
-		ResourceMutex::FaultScope scope(mutex);
-		second_entered.store(true, std::memory_order_release);
-		while (!release_second.load(std::memory_order_acquire)) {
-			std::this_thread::yield();
-		}
-	});
-	while (!second_started.load(std::memory_order_acquire)) {
-		std::this_thread::yield();
-	}
-	YieldMany();
-	Check(!second_entered.load(std::memory_order_acquire),
-	      "second fault transaction entered before first completed");
-	release_first.store(true, std::memory_order_release);
-	while (!second_entered.load(std::memory_order_acquire)) {
-		std::this_thread::yield();
-	}
-	std::thread publisher([&] {
-		std::lock_guard lock(mutex);
-		publisher_entered.store(true, std::memory_order_release);
-	});
-	YieldMany();
-	Check(!publisher_entered.load(std::memory_order_acquire),
-	      "publisher entered during second fault transaction");
-	release_second.store(true, std::memory_order_release);
-	first.join();
-	second.join();
-	publisher.join();
-	Check(publisher_entered.load(std::memory_order_acquire),
-	      "publisher did not resume after serialized faults");
-}
-
-void TestPreownedFaultKeepsResourceTransaction() {
-	ResourceMutex    mutex;
-	std::atomic_bool publisher_started {false};
-	std::atomic_bool publisher_entered {false};
-	std::thread      publisher;
-	std::unique_lock owner(mutex);
-	{
-		ResourceMutex::FaultScope fault(mutex);
-		publisher = std::thread([&] {
-			publisher_started.store(true, std::memory_order_release);
-			std::lock_guard lock(mutex);
-			publisher_entered.store(true, std::memory_order_release);
-		});
-		while (!publisher_started.load(std::memory_order_acquire)) {
-			std::this_thread::yield();
-		}
-		YieldMany();
-		Check(!publisher_entered.load(std::memory_order_acquire),
-		      "publisher entered during preowned fault transaction");
-	}
-	YieldMany();
-	Check(!publisher_entered.load(std::memory_order_acquire),
-	      "preowned fault released its outer resource transaction");
+	Check(!contender_entered.load(std::memory_order_acquire),
+	      "contender entered an active resource transaction");
 	owner.unlock();
-	publisher.join();
-	Check(publisher_entered.load(std::memory_order_acquire),
-	      "publisher did not resume after outer transaction");
+	contender.join();
+	Check(contender_entered.load(std::memory_order_acquire),
+	      "contender did not resume after resource transaction");
 }

 #if KYTY_PLATFORM == KYTY_PLATFORM_WINDOWS
-[[noreturn]] void RunDeathCase(const char* name) {
+[[noreturn]] void RunDeathCase() {
 	ResourceMutex mutex;
-	if (std::strcmp(name, "recursive-lock") == 0) {
-		std::lock_guard first(mutex);
-		std::lock_guard second(mutex);
-	} else if (std::strcmp(name, "nested-fault") == 0) {
-		ResourceMutex::FaultScope first(mutex);
-		ResourceMutex::FaultScope second(mutex);
-	}
+	std::lock_guard first(mutex);
+	std::lock_guard second(mutex);
 	std::_Exit(0x7f);
 }

-void CheckDeathCase(const char* name) {
+void CheckDeathCase() {
 	char path[MAX_PATH] {};
 	Check(GetModuleFileNameA(nullptr, path, MAX_PATH) != 0, "GetModuleFileName failed");
-	std::string       command = std::string("\"") + path + "\" --death " + name;
+	std::string       command = std::string("\"") + path + "\" --death";
 	std::vector<char> mutable_command(command.begin(), command.end());
 	mutable_command.push_back('\0');
 	STARTUPINFOA        startup {sizeof(startup)};
@@ -224,20 +103,17 @@ void CheckDeathCase(const char* name) {

 int main(int argc, char** argv) {
 #if KYTY_PLATFORM == KYTY_PLATFORM_WINDOWS
-	if (argc == 3 && std::strcmp(argv[1], "--death") == 0) {
-		RunDeathCase(argv[2]);
+	if (argc == 2 && std::strcmp(argv[1], "--death") == 0) {
+		RunDeathCase();
 	}
 #else
 	(void)argc;
 	(void)argv;
 #endif
-	TestFaultBlocksPublisher();
-	TestFaultDrainsExistingOwner();
-	TestFaultScopesSerialize();
-	TestPreownedFaultKeepsResourceTransaction();
+	TestOwnership();
+	TestSerializesTransactions();
 #if KYTY_PLATFORM == KYTY_PLATFORM_WINDOWS
-	CheckDeathCase("recursive-lock");
-	CheckDeathCase("nested-fault");
+	CheckDeathCase();
 #endif
 	std::puts("ResourceMutexTests: all cases passed");
 	return 0;
@@ -58,6 +58,7 @@

 #include <algorithm>
 #include <array>
+#include <atomic>
 #include <bit>
 #include <chrono>
 #include <cinttypes>
@@ -1372,12 +1373,14 @@ public:

 	void CheckGpuMappedRangeLifecycle() {
 		EnsureRuntimeContext();
-		CommandScheduler scheduler(Renderer(), m_runtime_context);
+		auto&            context = Renderer();
+		CommandScheduler scheduler(context, m_runtime_context);
 		HW::Context      registers {};
 		HW::UserConfig   user_config {};
 		HW::Shader       shaders {};
 		scheduler.Begin(registers, user_config, shaders);
-		Gpu                gpu(Renderer());
+		context.InitializeGpu(nullptr);
+		auto&              gpu = context.GetGpu();
 		GpuResourceManager resources(m_runtime_context, scheduler);
 		resources.SetGpu(&gpu);

@@ -1416,6 +1419,7 @@ public:

 		resources.SetGpu(nullptr);
 		scheduler.Finish();
+		context.ShutdownGpu();
 		std::printf("[host]    %-32s ok\n", "GpuMappedRangeLifecycle");
 	}

@@ -1567,21 +1571,73 @@ public:
 			gpu_thread = std::this_thread::get_id();
 			Require("GpuCommandLane", "FIFO", order == 1,
 			        "synchronous command overtook an older host command");
-			Require("GpuCommandLane", "generic context",
-			        !Gpu::IsCommandProcessorThread() && Gpu::CurrentCommandProcessor() == nullptr,
-			        "generic host command manufactured a PM4 processor context");
+			Require("GpuCommandLane", "GPU context", Gpu::IsGpuThread(),
+			        "host command did not run on the GPU thread");
 			gpu.SendCommandSync([&nested_thread] { nested_thread = std::this_thread::get_id(); });
 			order = 2;
 		});
-		gpu.SendCommandSyncWithProcessor([&](CommandProcessor& processor) {
-			Require("GpuCommandLane", "processor context",
-			        Gpu::IsCommandProcessorThread() && Gpu::CurrentCommandProcessor() == &processor,
-			        "resource command did not receive its explicit processor context");
-		});
 		Require("GpuCommandLane", "dispatch thread",
 		        order == 2 && gpu_thread != caller_thread && nested_thread == gpu_thread,
 		        "host command did not run on the GPU thread or nested sync deadlocked");

+		alignas(uint32_t) uint32_t packet_marker_a = 0;
+		alignas(uint32_t) uint32_t packet_marker_b = 0;
+		const auto write_packet = [](uint32_t* packet, uint32_t* destination, uint32_t value) {
+			const auto destination_address = reinterpret_cast<uint64_t>(destination);
+			packet[0] = KYTY_PM4(5, Pm4::IT_WRITE_DATA, 0);
+			packet[1] = 0;
+			packet[2] = static_cast<uint32_t>(destination_address);
+			packet[3] = static_cast<uint32_t>(destination_address >> 32u);
+			packet[4] = value;
+		};
+		std::array<uint32_t, 1024> polling_loop {};
+		for (size_t i = 0; i < polling_loop.size() - 4; i += 2) {
+			polling_loop[i]     = KYTY_PM4(2, Pm4::IT_NOP, Pm4::R_ZERO);
+			polling_loop[i + 1] = 0;
+		}
+		const auto loop_address = reinterpret_cast<uint64_t>(polling_loop.data());
+		polling_loop[1020] = KYTY_PM4(4, Pm4::IT_INDIRECT_BUFFER, 0);
+		polling_loop[1021] = static_cast<uint32_t>(loop_address);
+		polling_loop[1022] = static_cast<uint32_t>(loop_address >> 32u);
+		polling_loop[1023] = 0x0f200000u | static_cast<uint32_t>(polling_loop.size());
+
+		std::array<uint32_t, 14> polling_commands {};
+		write_packet(polling_commands.data(), &packet_marker_a, 11);
+		polling_commands[5] = KYTY_PM4(4, Pm4::IT_INDIRECT_BUFFER, 0);
+		polling_commands[6] = static_cast<uint32_t>(loop_address);
+		polling_commands[7] = static_cast<uint32_t>(loop_address >> 32u);
+		polling_commands[8] = 0x0f200000u | static_cast<uint32_t>(polling_loop.size());
+		write_packet(polling_commands.data() + 9, &packet_marker_b, 22);
+		std::binary_semaphore stream_gate_entered {0};
+		std::binary_semaphore stream_gate_release {0};
+		gpu.SendCommand([&] {
+			stream_gate_entered.release();
+			stream_gate_release.acquire();
+		});
+		gpu.Submit(polling_commands.data(), polling_commands.size(), nullptr, 0);
+		stream_gate_entered.acquire();
+		stream_gate_release.release();
+		uint32_t packet_marker_a_at_callback = UINT32_MAX;
+		uint32_t packet_marker_b_at_callback = UINT32_MAX;
+		for (uint32_t attempt = 0; attempt < 8 && packet_marker_a_at_callback != 11; attempt++) {
+			gpu.SendCommandSync([&] {
+				if (packet_marker_a == 11 && packet_marker_b == 0) {
+					packet_marker_a_at_callback = packet_marker_a;
+					packet_marker_b_at_callback = packet_marker_b;
+					polling_loop[1020] = KYTY_PM4(2, Pm4::IT_NOP, Pm4::R_ZERO);
+					polling_loop[1021] = 0;
+					polling_loop[1022] = KYTY_PM4(2, Pm4::IT_NOP, Pm4::R_ZERO);
+					polling_loop[1023] = 0;
+				}
+			});
+			std::this_thread::yield();
+		}
+		gpu.Done();
+		Require("GpuCommandLane", "packet-boundary command polling",
+		        packet_marker_a_at_callback == 11 && packet_marker_b_at_callback == 0 &&
+		            packet_marker_a == 11 && packet_marker_b == 22,
+		        "host command waited for an entire non-suspended PM4 stream");
+
 		uint32_t   label   = 0;
 		uint32_t   prefix  = 0;
 		uint32_t   suffix  = 0;
@@ -1760,7 +1816,7 @@ public:
 		gpu.Submit(dma_commands.data(), static_cast<uint32_t>(dma_commands.size()), nullptr, 0);
 		gpu.Done();
 		constexpr uint32_t clean_fill_value = 0xdecafbad;
-		gpu.SendCommandSyncWithProcessor([&](CommandProcessor&) {
+		gpu.SendCommandSync([&] {
 			auto& buffer_cache = resources.GetBufferCache();
 			Require("GpuCommandLane", "clean cached setup",
 			        buffer_cache.HasPageOverlap(clean_cached_fill, sizeof(source_words)) &&
@@ -1840,14 +1896,116 @@ public:
 		                                                       clean_copy_words[1]},
 		        "host-memory fill/copy did not update the clean cached mirror");

-		gpu.SendCommandSyncWithProcessor([&](CommandProcessor& processor) {
-			Require("GpuCommandLane", "processor fault context",
-			        Gpu::CurrentCommandProcessor() == &processor,
-			        "processor resource test lost its command context");
-			Require("GpuCommandLane", "processor memory invalidation",
+		gpu.SendCommandSync([&] {
+			Require("GpuCommandLane", "GPU memory invalidation",
 			        resources.InvalidateMemory(fault_base, sizeof(uint32_t)),
-			        "processor memory invalidation did not find its mapped range");
+			        "GPU memory invalidation did not find its mapped range");
 		});
+
+		auto& buffer_cache = resources.GetBufferCache();
+		Require("GpuCommandLane", "clean tracked fault setup",
+		        buffer_cache.HasPageOverlap(immediate_dst, sizeof(uint32_t)) &&
+		            !buffer_cache.HasGpuDirtyBytes(immediate_dst, sizeof(uint32_t)),
+		        "clean write-fault test address is not backed by a clean cached Buffer");
+		constexpr uint64_t dirty_fault_address = fault_base + 0xd000;
+		constexpr uint32_t dirty_fault_value   = 0x5a17c0deu;
+		constexpr uint32_t dirty_fault_stale   = 0x0ddba11u;
+		std::memcpy(reinterpret_cast<void*>(dirty_fault_address), &dirty_fault_stale,
+		            sizeof(dirty_fault_stale));
+		gpu.SendCommandSync([&] {
+			auto dirty = buffer_cache.ObtainBuffer(scheduler.Current(), dirty_fault_address,
+			                                       sizeof(dirty_fault_value), true, false);
+			Require("GpuCommandLane", "dirty tracked fault setup", dirty.owner != nullptr,
+			        "dirty write-fault test could not create a cached Buffer");
+			scheduler.Current().RetainResourceUntilFence(dirty.owner);
+			buffer_cache.FillBuffer(dirty_fault_address, sizeof(dirty_fault_value),
+			                        dirty_fault_value);
+		});
+		Require("GpuCommandLane", "dirty tracked fault ownership",
+		        buffer_cache.HasGpuDirtyBytes(dirty_fault_address, sizeof(dirty_fault_value)),
+		        "dirty write-fault test address did not acquire GPU ownership");
+
+		std::binary_semaphore block_entered {0};
+		std::binary_semaphore block_release {0};
+		std::binary_semaphore clean_fault_complete {0};
+		bool                  clean_fault_handled = false;
+		gpu.SendCommand([&] {
+			block_entered.release();
+			block_release.acquire();
+		});
+		block_entered.acquire();
+		std::jthread clean_fault_thread([&] {
+			clean_fault_handled = resources.HandleFault(PageFaultAccess::Write, immediate_dst);
+			clean_fault_complete.release();
+		});
+		const bool clean_fault_was_direct =
+		    clean_fault_complete.try_acquire_for(std::chrono::seconds(1));
+		if (!clean_fault_was_direct) {
+			block_release.release();
+			clean_fault_complete.acquire();
+		}
+		clean_fault_thread.join();
+		Require("GpuCommandLane", "clean fault direct path",
+		        clean_fault_was_direct && clean_fault_handled,
+		        "a clean CPU write fault waited for the blocked GPU command lane");
+
+		std::binary_semaphore dirty_fault_complete {0};
+		bool                  dirty_fault_handled = false;
+		std::jthread dirty_fault_thread([&] {
+			dirty_fault_handled =
+			    resources.HandleFault(PageFaultAccess::Write, dirty_fault_address);
+			dirty_fault_complete.release();
+		});
+		const bool dirty_fault_bypassed_lane =
+		    dirty_fault_complete.try_acquire_for(std::chrono::milliseconds(200));
+		block_release.release();
+		if (!dirty_fault_bypassed_lane) {
+			dirty_fault_complete.acquire();
+		}
+		dirty_fault_thread.join();
+		uint32_t dirty_fault_backing = 0;
+		std::memcpy(&dirty_fault_backing, reinterpret_cast<const void*>(dirty_fault_address),
+		            sizeof(dirty_fault_backing));
+		Require("GpuCommandLane", "dirty fault synchronization",
+		        !dirty_fault_bypassed_lane && dirty_fault_handled &&
+		            dirty_fault_backing == dirty_fault_value &&
+		            !buffer_cache.HasGpuDirtyBytes(dirty_fault_address, sizeof(dirty_fault_value)),
+		        "a GPU-dirty write fault bypassed synchronization or lost the published bytes");
+
+		constexpr uint64_t empty_copy_fault_address = fault_base + 0xe000;
+		constexpr uint32_t empty_copy_fault_value   = 0x6b28d1efu;
+		gpu.SendCommandSync([&] {
+			auto dirty = buffer_cache.ObtainBuffer(scheduler.Current(), empty_copy_fault_address,
+			                                       sizeof(empty_copy_fault_value), true, false);
+			Require("GpuCommandLane", "empty-copy write setup", dirty.owner != nullptr,
+			        "empty-copy write test could not create a cached Buffer");
+			scheduler.Current().RetainResourceUntilFence(dirty.owner);
+			buffer_cache.FillBuffer(empty_copy_fault_address, sizeof(empty_copy_fault_value),
+			                        empty_copy_fault_value);
+			buffer_cache.ReadMemory(empty_copy_fault_address, sizeof(empty_copy_fault_value));
+			const bool gpu_owned = buffer_cache.IsRegionGpuModified(
+			    empty_copy_fault_address, sizeof(empty_copy_fault_value));
+			const bool cpu_owned = buffer_cache.IsRegionCpuModified(
+			    empty_copy_fault_address, sizeof(empty_copy_fault_value));
+			Require("GpuCommandLane", "empty-copy read ownership",
+			        !gpu_owned && !cpu_owned,
+			        "readback did not leave clean ownership for the queued write invalidation");
+			buffer_cache.ReadMemory(empty_copy_fault_address, sizeof(empty_copy_fault_value), true);
+		});
+		uint32_t empty_copy_fault_backing = 0;
+		std::memcpy(&empty_copy_fault_backing, reinterpret_cast<const void*>(empty_copy_fault_address),
+		            sizeof(empty_copy_fault_backing));
+		const bool empty_copy_cpu_owned = buffer_cache.IsRegionCpuModified(
+		    empty_copy_fault_address, sizeof(empty_copy_fault_value));
+		const bool empty_copy_gpu_owned = buffer_cache.IsRegionGpuModified(
+		    empty_copy_fault_address, sizeof(empty_copy_fault_value));
+		const bool empty_copy_dirty =
+		    buffer_cache.HasGpuDirtyBytes(empty_copy_fault_address, sizeof(empty_copy_fault_value));
+		Require("GpuCommandLane", "empty-copy write ownership",
+		        empty_copy_fault_backing == empty_copy_fault_value &&
+		            empty_copy_cpu_owned && !empty_copy_gpu_owned && !empty_copy_dirty,
+		        "write invalidation without a remaining copy did not establish CPU ownership");
+
 		resources.UnmapMemory(fault_base, fault_size);
 		Require("GpuCommandLane", "processor fault unmap",
 		        Libs::LibKernel::Memory::KernelMunmap(fault_base, fault_size) == 0,
@@ -2073,12 +2231,14 @@ public:
 		constexpr uint32_t    ring_fault_second_value       = 0x4e5f6071u;

 		EnsureRuntimeContext();
-		CommandScheduler scheduler(Renderer(), m_runtime_context);
+		auto&            context = Renderer();
+		CommandScheduler scheduler(context, m_runtime_context);
 		HW::Context      registers {};
 		HW::UserConfig   user_config {};
 		HW::Shader       shaders {};
 		scheduler.Begin(registers, user_config, shaders);
-		Gpu gpu(Renderer());
+		context.InitializeGpu(nullptr);
+		auto& gpu = context.GetGpu();

 		int64_t direct_offset = -1;
 		Require(name, "direct allocation",
@@ -2471,7 +2631,7 @@ public:
 			resources.UnmapMemory(base, allocation_size);
 			scheduler.Finish();
 		}
-		gpu.Shutdown();
+		context.ShutdownGpu();
 		Require(name, "unmap direct backing",
 		        Libs::LibKernel::Memory::KernelMunmap(base, allocation_size) == 0,
 		        "dirty-GC direct-memory mapping release failed");
@@ -2488,12 +2648,14 @@ public:
 		constexpr uint64_t    allocation_size      = 0x2800000;
 		constexpr uint64_t    allocation_alignment = 0x200000;
 		EnsureRuntimeContext();
-		CommandScheduler scheduler(Renderer(), m_runtime_context);
+		auto&            context = Renderer();
+		CommandScheduler scheduler(context, m_runtime_context);
 		HW::Context      registers {};
 		HW::UserConfig   user_config {};
 		HW::Shader       shaders {};
 		scheduler.Begin(registers, user_config, shaders);
-		Gpu     gpu(Renderer());
+		context.InitializeGpu(nullptr);
+		auto&   gpu = context.GetGpu();
 		int64_t direct_offset = -1;
 		Require(name, "direct allocation",
 		        Libs::LibKernel::Memory::KernelAllocateDirectMemory(
@@ -4949,7 +5111,7 @@ public:
 			resources.UnmapMemory(base, allocation_size);
 			scheduler.Finish();
 		}
-		gpu.Shutdown();
+		context.ShutdownGpu();
 		Require(name, "unmap direct backing",
 		        Libs::LibKernel::Memory::KernelMunmap(base, allocation_size) == 0,
 		        "cache direct-memory mapping release failed");
Author	SHA1	Message	Date
nmzik	0bbd0bdd99	fix launcher regression	2026-08-04 03:35:30 +02:00
nmzik	6396dc9a85	feat(input): add host input remapping Add compact keyboard and mouse mapping with analog-stick defaults and integrate a global remapping editor into the Qt launcher. Based on the host input remapping work from PR #109. Co-authored-by: DistantMyth <thetarun3@gmail.com>	2026-08-04 03:24:34 +02:00
nmzik	a3a00464bc	fix(launcher): focus emulator window on launch	2026-08-04 02:51:11 +02:00
nmzik	1da99a0671	Add warning for Windows-forbidden filename characters	2026-08-04 02:26:50 +02:00
nmzik	9304921132	add fullscreen mode	2026-08-04 02:26:50 +02:00
nmzik	c13a1d752b	renderer: remove duplicate vertex and index buffer rebind	2026-08-04 02:26:50 +02:00
nmzik	51d0e02543	perf: sync only GPU-dirty readbacks	2026-08-04 02:26:50 +02:00