maxwell_3d: Use correct const buffer size and check bounds.

- Fixes mem corruption with Super Mario Odyssey and Pokkén Tournament DX.

externals/CMakeLists.txt

@@ -36,7 +36,7 @@ add_subdirectory(lz4/contrib/cmake_unofficial)
 target_include_directories(lz4_static INTERFACE ./lz4/lib)
 
 # mbedtls
-add_subdirectory(mbedtls)
+add_subdirectory(mbedtls EXCLUDE_FROM_ALL)
 target_include_directories(mbedtls PUBLIC ./mbedtls/include)
 
 # MicroProfile
@@ -62,5 +62,5 @@ target_include_directories(opus INTERFACE ./opus/include)
 # Cubeb
 if(ENABLE_CUBEB)
     set(BUILD_TESTS OFF CACHE BOOL "")
-    add_subdirectory(cubeb)
+    add_subdirectory(cubeb EXCLUDE_FROM_ALL)
 endif()

src/audio_core/CMakeLists.txt

@@ -4,8 +4,6 @@ add_library(audio_core STATIC
     audio_renderer.cpp
     audio_renderer.h
     buffer.h
-    cubeb_sink.cpp
-    cubeb_sink.h
     codec.cpp
     codec.h
     null_sink.h
@@ -15,6 +13,8 @@ add_library(audio_core STATIC
     sink_details.cpp
     sink_details.h
     sink_stream.h
+
+    $<$<BOOL:${ENABLE_CUBEB}>:cubeb_sink.cpp cubeb_sink.h>
 )
 
 create_target_directory_groups(audio_core)

src/common/logging/backend.cpp

@@ -200,6 +200,7 @@ void FileBackend::Write(const Entry& entry) {
     SUB(Service, SPL)                                                                              \
     SUB(Service, SSL)                                                                              \
     SUB(Service, Time)                                                                             \
+    SUB(Service, USB)                                                                              \
     SUB(Service, VI)                                                                               \
     SUB(Service, WLAN)                                                                             \
     CLS(HW)                                                                                        \

src/common/logging/log.h

@@ -87,6 +87,7 @@ enum class Class : ClassType {
     Service_SPL,       ///< The SPL service
     Service_SSL,       ///< The SSL service
     Service_Time,      ///< The time service
+    Service_USB,       ///< The USB (Universal Serial Bus) service
     Service_VI,        ///< The VI (Video interface) service
     Service_WLAN,      ///< The WLAN (Wireless local area network) service
     HW,                ///< Low-level hardware emulation

src/core/CMakeLists.txt

@@ -315,6 +315,8 @@ add_library(core STATIC
     hle/service/time/interface.h
     hle/service/time/time.cpp
     hle/service/time/time.h
+    hle/service/usb/usb.cpp
+    hle/service/usb/usb.h
     hle/service/vi/vi.cpp
     hle/service/vi/vi.h
     hle/service/vi/vi_m.cpp

src/core/arm/unicorn/arm_unicorn.cpp

@@ -203,7 +203,7 @@ void ARM_Unicorn::ExecuteInstructions(int num_instructions) {
         }
         Kernel::Thread* thread = Kernel::GetCurrentThread();
         SaveContext(thread->context);
-        if (last_bkpt_hit || (num_instructions == 1)) {
+        if (last_bkpt_hit || GDBStub::GetCpuStepFlag()) {
             last_bkpt_hit = false;
             GDBStub::Break();
             GDBStub::SendTrap(thread, 5);

src/core/core.cpp

@@ -62,7 +62,6 @@ System::ResultStatus System::RunLoop(bool tight_loop) {
         // execute. Otherwise, get out of the loop function.
         if (GDBStub::GetCpuHaltFlag()) {
             if (GDBStub::GetCpuStepFlag()) {
-                GDBStub::SetCpuStepFlag(false);
                 tight_loop = false;
             } else {
                 return ResultStatus::Success;
@@ -78,6 +77,10 @@ System::ResultStatus System::RunLoop(bool tight_loop) {
         }
     }
 
+    if (GDBStub::IsServerEnabled()) {
+        GDBStub::SetCpuStepFlag(false);
+    }
+
     return status;
 }
 

src/core/core.h

@@ -82,6 +82,17 @@ public:
      */
     ResultStatus SingleStep();
 
+    /**
+     * Invalidate the CPU instruction caches
+     * This function should only be used by GDB Stub to support breakpoints, memory updates and
+     * step/continue commands.
+     */
+    void InvalidateCpuInstructionCaches() {
+        for (auto& cpu : cpu_cores) {
+            cpu->ArmInterface().ClearInstructionCache();
+        }
+    }
+
     /// Shutdown the emulated system.
     void Shutdown();
 

src/core/core_timing.cpp

@@ -226,8 +226,8 @@ void Idle() {
     downcount = 0;
 }
 
-u64 GetGlobalTimeUs() {
-    return GetTicks() * 1000000 / BASE_CLOCK_RATE;
+std::chrono::microseconds GetGlobalTimeUs() {
+    return std::chrono::microseconds{GetTicks() * 1000000 / BASE_CLOCK_RATE};
 }
 
 int GetDowncount() {

src/core/core_timing.h

@@ -17,6 +17,7 @@
  *   ScheduleEvent(periodInCycles - cyclesLate, callback, "whatever")
  */
 
+#include <chrono>
 #include <functional>
 #include <string>
 #include "common/common_types.h"
@@ -86,7 +87,7 @@ void ClearPendingEvents();
 
 void ForceExceptionCheck(s64 cycles);
 
-u64 GetGlobalTimeUs();
+std::chrono::microseconds GetGlobalTimeUs();
 
 int GetDowncount();
 

src/core/file_sys/content_archive.cpp

@@ -76,12 +76,17 @@ bool IsValidNCA(const NCAHeader& header) {
     return header.magic == Common::MakeMagic('N', 'C', 'A', '3');
 }
 
-boost::optional<Core::Crypto::Key128> NCA::GetKeyAreaKey(NCASectionCryptoType type) const {
+u8 NCA::GetCryptoRevision() const {
     u8 master_key_id = header.crypto_type;
     if (header.crypto_type_2 > master_key_id)
         master_key_id = header.crypto_type_2;
     if (master_key_id > 0)
         --master_key_id;
+    return master_key_id;
+}
+
+boost::optional<Core::Crypto::Key128> NCA::GetKeyAreaKey(NCASectionCryptoType type) const {
+    const auto master_key_id = GetCryptoRevision();
 
     if (!keys.HasKey(Core::Crypto::S128KeyType::KeyArea, master_key_id, header.key_index))
         return boost::none;
@@ -108,33 +113,58 @@ boost::optional<Core::Crypto::Key128> NCA::GetKeyAreaKey(NCASectionCryptoType ty
     return out;
 }
 
-VirtualFile NCA::Decrypt(NCASectionHeader header, VirtualFile in, u64 starting_offset) const {
+boost::optional<Core::Crypto::Key128> NCA::GetTitlekey() const {
+    const auto master_key_id = GetCryptoRevision();
+
+    u128 rights_id{};
+    memcpy(rights_id.data(), header.rights_id.data(), 16);
+    if (rights_id == u128{})
+        return boost::none;
+
+    auto titlekey = keys.GetKey(Core::Crypto::S128KeyType::Titlekey, rights_id[1], rights_id[0]);
+    if (titlekey == Core::Crypto::Key128{})
+        return boost::none;
+    Core::Crypto::AESCipher<Core::Crypto::Key128> cipher(
+        keys.GetKey(Core::Crypto::S128KeyType::Titlekek, master_key_id), Core::Crypto::Mode::ECB);
+    cipher.Transcode(titlekey.data(), titlekey.size(), titlekey.data(), Core::Crypto::Op::Decrypt);
+
+    return titlekey;
+}
+
+VirtualFile NCA::Decrypt(NCASectionHeader s_header, VirtualFile in, u64 starting_offset) const {
     if (!encrypted)
         return in;
 
-    switch (header.raw.header.crypto_type) {
+    switch (s_header.raw.header.crypto_type) {
     case NCASectionCryptoType::NONE:
         LOG_DEBUG(Crypto, "called with mode=NONE");
         return in;
     case NCASectionCryptoType::CTR:
         LOG_DEBUG(Crypto, "called with mode=CTR, starting_offset={:016X}", starting_offset);
         {
-            const auto key = GetKeyAreaKey(NCASectionCryptoType::CTR);
+            boost::optional<Core::Crypto::Key128> key = boost::none;
+            if (std::find_if_not(header.rights_id.begin(), header.rights_id.end(),
+                                 [](char c) { return c == 0; }) == header.rights_id.end()) {
+                key = GetKeyAreaKey(NCASectionCryptoType::CTR);
+            } else {
+                key = GetTitlekey();
+            }
+
             if (key == boost::none)
                 return nullptr;
             auto out = std::make_shared<Core::Crypto::CTREncryptionLayer>(
                 std::move(in), key.value(), starting_offset);
             std::vector<u8> iv(16);
             for (u8 i = 0; i < 8; ++i)
-                iv[i] = header.raw.section_ctr[0x8 - i - 1];
+                iv[i] = s_header.raw.section_ctr[0x8 - i - 1];
             out->SetIV(iv);
             return std::static_pointer_cast<VfsFile>(out);
         }
     case NCASectionCryptoType::XTS:
-        // TODO(DarkLordZach): Implement XTSEncryptionLayer and title key encryption.
+        // TODO(DarkLordZach): Implement XTSEncryptionLayer.
     default:
         LOG_ERROR(Crypto, "called with unhandled crypto type={:02X}",
-                  static_cast<u8>(header.raw.header.crypto_type));
+                  static_cast<u8>(s_header.raw.header.crypto_type));
         return nullptr;
     }
 }

src/core/file_sys/content_archive.h

@@ -95,7 +95,9 @@ protected:
     bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
 
 private:
+    u8 GetCryptoRevision() const;
     boost::optional<Core::Crypto::Key128> GetKeyAreaKey(NCASectionCryptoType type) const;
+    boost::optional<Core::Crypto::Key128> GetTitlekey() const;
     VirtualFile Decrypt(NCASectionHeader header, VirtualFile in, u64 starting_offset) const;
 
     std::vector<VirtualDir> dirs;

src/core/gdbstub/gdbstub.cpp

@@ -173,6 +173,7 @@ struct Breakpoint {
     bool active;
     VAddr addr;
     u64 len;
+    std::array<u8, 4> inst;
 };
 
 using BreakpointMap = std::map<VAddr, Breakpoint>;
@@ -453,6 +454,8 @@ static void RemoveBreakpoint(BreakpointType type, VAddr addr) {
 
     LOG_DEBUG(Debug_GDBStub, "gdb: removed a breakpoint: {:016X} bytes at {:016X} of type {}",
               bp->second.len, bp->second.addr, static_cast<int>(type));
+    Memory::WriteBlock(bp->second.addr, bp->second.inst.data(), bp->second.inst.size());
+    Core::System::GetInstance().InvalidateCpuInstructionCaches();
     p.erase(addr);
 }
 
@@ -937,6 +940,7 @@ static void WriteMemory() {
 
     GdbHexToMem(data.data(), len_pos + 1, len);
     Memory::WriteBlock(addr, data.data(), len);
+    Core::System::GetInstance().InvalidateCpuInstructionCaches();
     SendReply("OK");
 }
 
@@ -956,6 +960,7 @@ static void Step() {
     step_loop = true;
     halt_loop = true;
     send_trap = true;
+    Core::System::GetInstance().InvalidateCpuInstructionCaches();
 }
 
 /// Tell the CPU if we hit a memory breakpoint.
@@ -972,6 +977,7 @@ static void Continue() {
     memory_break = false;
     step_loop = false;
     halt_loop = false;
+    Core::System::GetInstance().InvalidateCpuInstructionCaches();
 }
 
 /**
@@ -988,6 +994,10 @@ static bool CommitBreakpoint(BreakpointType type, VAddr addr, u64 len) {
     breakpoint.active = true;
     breakpoint.addr = addr;
     breakpoint.len = len;
+    Memory::ReadBlock(addr, breakpoint.inst.data(), breakpoint.inst.size());
+    static constexpr std::array<u8, 4> btrap{{0xd4, 0x20, 0x7d, 0x0}};
+    Memory::WriteBlock(addr, btrap.data(), btrap.size());
+    Core::System::GetInstance().InvalidateCpuInstructionCaches();
     p.insert({addr, breakpoint});
 
     LOG_DEBUG(Debug_GDBStub, "gdb: added {} breakpoint: {:016X} bytes at {:016X}",

src/core/hle/kernel/client_port.cpp

@@ -14,8 +14,8 @@
 
 namespace Kernel {
 
-ClientPort::ClientPort() {}
-ClientPort::~ClientPort() {}
+ClientPort::ClientPort() = default;
+ClientPort::~ClientPort() = default;
 
 ResultVal<SharedPtr<ClientSession>> ClientPort::Connect() {
     // Note: Threads do not wait for the server endpoint to call
@@ -40,4 +40,12 @@ ResultVal<SharedPtr<ClientSession>> ClientPort::Connect() {
     return MakeResult(std::get<SharedPtr<ClientSession>>(sessions));
 }
 
+void ClientPort::ConnectionClosed() {
+    if (active_sessions == 0) {
+        return;
+    }
+
+    --active_sessions;
+}
+
 } // namespace Kernel

src/core/hle/kernel/client_port.h

@@ -37,14 +37,20 @@ public:
      */
     ResultVal<SharedPtr<ClientSession>> Connect();
 
-    SharedPtr<ServerPort> server_port; ///< ServerPort associated with this client port.
-    u32 max_sessions;    ///< Maximum number of simultaneous sessions the port can have
-    u32 active_sessions; ///< Number of currently open sessions to this port
-    std::string name;    ///< Name of client port (optional)
+    /**
+     * Signifies that a previously active connection has been closed,
+     * decreasing the total number of active connections to this port.
+     */
+    void ConnectionClosed();
 
 private:
     ClientPort();
     ~ClientPort() override;
+
+    SharedPtr<ServerPort> server_port; ///< ServerPort associated with this client port.
+    u32 max_sessions = 0;    ///< Maximum number of simultaneous sessions the port can have
+    u32 active_sessions = 0; ///< Number of currently open sessions to this port
+    std::string name;        ///< Name of client port (optional)
 };
 
 } // namespace Kernel

src/core/hle/kernel/event.h

@@ -31,10 +31,9 @@ public:
         return HANDLE_TYPE;
     }
 
-    ResetType reset_type; ///< Current ResetType
-
-    bool signaled;    ///< Whether the event has already been signaled
-    std::string name; ///< Name of event (optional)
+    ResetType GetResetType() const {
+        return reset_type;
+    }
 
     bool ShouldWait(Thread* thread) const override;
     void Acquire(Thread* thread) override;
@@ -47,6 +46,11 @@ public:
 private:
     Event();
     ~Event() override;
+
+    ResetType reset_type; ///< Current ResetType
+
+    bool signaled;    ///< Whether the event has already been signaled
+    std::string name; ///< Name of event (optional)
 };
 
 } // namespace Kernel

src/core/hle/kernel/server_session.cpp

@@ -27,7 +27,7 @@ ServerSession::~ServerSession() {
 
     // Decrease the port's connection count.
     if (parent->port)
-        parent->port->active_sessions--;
+        parent->port->ConnectionClosed();
 
     // TODO(Subv): Wake up all the ClientSession's waiting threads and set
     // the SendSyncRequest result to 0xC920181A.

src/core/hle/service/apm/apm.cpp

@@ -13,6 +13,7 @@ void InstallInterfaces(SM::ServiceManager& service_manager) {
     auto module_ = std::make_shared<Module>();
     std::make_shared<APM>(module_, "apm")->InstallAsService(service_manager);
     std::make_shared<APM>(module_, "apm:p")->InstallAsService(service_manager);
+    std::make_shared<APM_Sys>()->InstallAsService(service_manager);
 }
 
 } // namespace Service::APM

src/core/hle/service/apm/interface.cpp

@@ -74,6 +74,31 @@ void APM::OpenSession(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<ISession>();
+
+    LOG_DEBUG(Service_APM, "called");
+}
+
+APM_Sys::APM_Sys() : ServiceFramework{"apm:sys"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "RequestPerformanceMode"},
+        {1, &APM_Sys::GetPerformanceEvent, "GetPerformanceEvent"},
+        {2, nullptr, "GetThrottlingState"},
+        {3, nullptr, "GetLastThrottlingState"},
+        {4, nullptr, "ClearLastThrottlingState"},
+        {5, nullptr, "LoadAndApplySettings"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+void APM_Sys::GetPerformanceEvent(Kernel::HLERequestContext& ctx) {
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<ISession>();
+
+    LOG_DEBUG(Service_APM, "called");
 }
 
 } // namespace Service::APM

src/core/hle/service/apm/interface.h

@@ -19,4 +19,12 @@ private:
     std::shared_ptr<Module> apm;
 };
 
+class APM_Sys final : public ServiceFramework<APM_Sys> {
+public:
+    explicit APM_Sys();
+
+private:
+    void GetPerformanceEvent(Kernel::HLERequestContext& ctx);
+};
+
 } // namespace Service::APM

src/core/hle/service/hid/hid.cpp

@@ -337,6 +337,7 @@ public:
              "AcquireNpadStyleSetUpdateEventHandle"},
             {107, nullptr, "DisconnectNpad"},
             {108, &Hid::GetPlayerLedPattern, "GetPlayerLedPattern"},
+            {109, nullptr, "ActivateNpadWithRevision"},
             {120, &Hid::SetNpadJoyHoldType, "SetNpadJoyHoldType"},
             {121, &Hid::GetNpadJoyHoldType, "GetNpadJoyHoldType"},
             {122, &Hid::SetNpadJoyAssignmentModeSingleByDefault,

src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp

@@ -7,8 +7,8 @@
 #include "core/core.h"
 #include "core/hle/service/nvdrv/devices/nvdisp_disp0.h"
 #include "core/hle/service/nvdrv/devices/nvmap.h"
+#include "video_core/gpu.h"
 #include "video_core/renderer_base.h"
-#include "video_core/video_core.h"
 
 namespace Service::Nvidia::Devices {
 

src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp

@@ -2,14 +2,15 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
+#include <cstring>
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/hle/service/nvdrv/devices/nvhost_as_gpu.h"
 #include "core/hle/service/nvdrv/devices/nvmap.h"
+#include "video_core/memory_manager.h"
+#include "video_core/rasterizer_interface.h"
 #include "video_core/renderer_base.h"
-#include "video_core/video_core.h"
 
 namespace Service::Nvidia::Devices {
 

src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp

@@ -2,6 +2,9 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cstdlib>
+#include <cstring>
+
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/hle/service/nvdrv/devices/nvhost_ctrl.h"

src/core/hle/service/nvdrv/devices/nvhost_ctrl.h

@@ -5,8 +5,6 @@
 #pragma once
 
 #include <array>
-#include <cstdlib>
-#include <cstring>
 #include <vector>
 #include "common/common_types.h"
 #include "core/hle/service/nvdrv/devices/nvdevice.h"

src/core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.cpp

@@ -2,7 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
+#include <cstring>
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.h"

src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp

@@ -2,12 +2,14 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
-#include <map>
+#include <cstring>
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/hle/service/nvdrv/devices/nvhost_gpu.h"
+#include "core/memory.h"
+#include "video_core/gpu.h"
+#include "video_core/memory_manager.h"
 
 namespace Service::Nvidia::Devices {
 

src/core/hle/service/nvdrv/devices/nvhost_gpu.h

@@ -6,6 +6,7 @@
 
 #include <memory>
 #include <vector>
+#include "common/bit_field.h"
 #include "common/common_types.h"
 #include "common/swap.h"
 #include "core/hle/service/nvdrv/devices/nvdevice.h"

src/core/hle/service/nvdrv/devices/nvhost_nvdec.cpp

@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cstring>
+
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/hle/service/nvdrv/devices/nvhost_nvdec.h"

src/core/hle/service/nvdrv/devices/nvhost_nvdec.h

@@ -4,11 +4,9 @@
 
 #pragma once
 
-#include <array>
-#include <cstdlib>
-#include <cstring>
 #include <vector>
 #include "common/common_types.h"
+#include "common/swap.h"
 #include "core/hle/service/nvdrv/devices/nvdevice.h"
 
 namespace Service::Nvidia::Devices {

src/core/hle/service/nvdrv/devices/nvmap.cpp

@@ -3,7 +3,7 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
-#include <cinttypes>
+#include <cstring>
 
 #include "common/assert.h"
 #include "common/logging/log.h"

src/core/hle/service/nvdrv/interface.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <memory>
-#include <string>
 #include "core/hle/kernel/event.h"
 #include "core/hle/service/nvdrv/nvdrv.h"
 #include "core/hle/service/service.h"

src/core/hle/service/nvdrv/nvdrv.cpp

@@ -54,7 +54,7 @@ u32 Module::Open(const std::string& device_name) {
     return fd;
 }
 
-u32 Module::Ioctl(u32 fd, u32_le command, const std::vector<u8>& input, std::vector<u8>& output) {
+u32 Module::Ioctl(u32 fd, u32 command, const std::vector<u8>& input, std::vector<u8>& output) {
     auto itr = open_files.find(fd);
     ASSERT_MSG(itr != open_files.end(), "Tried to talk to an invalid device");
 

src/core/hle/service/nvdrv/nvmemp.cpp

@@ -4,8 +4,6 @@
 
 #include "common/assert.h"
 #include "common/logging/log.h"
-#include "core/hle/ipc_helpers.h"
-#include "core/hle/service/nvdrv/nvdrv.h"
 #include "core/hle/service/nvdrv/nvmemp.h"
 
 namespace Service::Nvidia {

src/core/hle/service/nvflinger/nvflinger.cpp

@@ -3,8 +3,11 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
+#include <boost/optional.hpp>
 
 #include "common/alignment.h"
+#include "common/assert.h"
+#include "common/logging/log.h"
 #include "common/microprofile.h"
 #include "common/scope_exit.h"
 #include "core/core.h"
@@ -31,7 +34,7 @@ NVFlinger::NVFlinger() {
 
     // Schedule the screen composition events
     composition_event =
-        CoreTiming::RegisterEvent("ScreenCompositioin", [this](u64 userdata, int cycles_late) {
+        CoreTiming::RegisterEvent("ScreenComposition", [this](u64 userdata, int cycles_late) {
             Compose();
             CoreTiming::ScheduleEvent(frame_ticks - cycles_late, composition_event);
         });
@@ -43,7 +46,7 @@ NVFlinger::~NVFlinger() {
     CoreTiming::UnscheduleEvent(composition_event, 0);
 }
 
-u64 NVFlinger::OpenDisplay(const std::string& name) {
+u64 NVFlinger::OpenDisplay(std::string_view name) {
     LOG_WARNING(Service, "Opening display {}", name);
 
     // TODO(Subv): Currently we only support the Default display.

src/core/hle/service/nvflinger/nvflinger.h

@@ -5,7 +5,11 @@
 #pragma once
 
 #include <memory>
-#include <boost/optional.hpp>
+#include <string>
+#include <string_view>
+#include <vector>
+
+#include "common/common_types.h"
 #include "core/hle/kernel/event.h"
 
 namespace CoreTiming {
@@ -41,7 +45,7 @@ public:
     ~NVFlinger();
 
     /// Opens the specified display and returns the id.
-    u64 OpenDisplay(const std::string& name);
+    u64 OpenDisplay(std::string_view name);
 
     /// Creates a layer on the specified display and returns the layer id.
     u64 CreateLayer(u64 display_id);

src/core/hle/service/service.cpp

@@ -63,6 +63,7 @@
 #include "core/hle/service/spl/module.h"
 #include "core/hle/service/ssl/ssl.h"
 #include "core/hle/service/time/time.h"
+#include "core/hle/service/usb/usb.h"
 #include "core/hle/service/vi/vi.h"
 #include "core/hle/service/wlan/wlan.h"
 
@@ -249,6 +250,7 @@ void Init(std::shared_ptr<SM::ServiceManager>& sm) {
     SPL::InstallInterfaces(*sm);
     SSL::InstallInterfaces(*sm);
     Time::InstallInterfaces(*sm);
+    USB::InstallInterfaces(*sm);
     VI::InstallInterfaces(*sm, nv_flinger);
     WLAN::InstallInterfaces(*sm);
 

src/core/hle/service/time/time.cpp

@@ -80,8 +80,8 @@ public:
             {5, nullptr, "GetTimeZoneRuleVersion"},
             {100, &ITimeZoneService::ToCalendarTime, "ToCalendarTime"},
             {101, &ITimeZoneService::ToCalendarTimeWithMyRule, "ToCalendarTimeWithMyRule"},
-            {200, nullptr, "ToPosixTime"},
-            {201, nullptr, "ToPosixTimeWithMyRule"},
+            {201, nullptr, "ToPosixTime"},
+            {202, nullptr, "ToPosixTimeWithMyRule"},
         };
         RegisterHandlers(functions);
     }

src/core/hle/service/usb/usb.cpp

@@ -0,0 +1,238 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <memory>
+
+#include "common/logging/log.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/hle_ipc.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/sm/sm.h"
+#include "core/hle/service/usb/usb.h"
+
+namespace Service::USB {
+
+class IDsInterface final : public ServiceFramework<IDsInterface> {
+public:
+    explicit IDsInterface() : ServiceFramework{"IDsInterface"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "GetDsEndpoint"},
+            {1, nullptr, "GetSetupEvent"},
+            {2, nullptr, "Unknown"},
+            {3, nullptr, "EnableInterface"},
+            {4, nullptr, "DisableInterface"},
+            {5, nullptr, "CtrlInPostBufferAsync"},
+            {6, nullptr, "CtrlOutPostBufferAsync"},
+            {7, nullptr, "GetCtrlInCompletionEvent"},
+            {8, nullptr, "GetCtrlInReportData"},
+            {9, nullptr, "GetCtrlOutCompletionEvent"},
+            {10, nullptr, "GetCtrlOutReportData"},
+            {11, nullptr, "StallCtrl"},
+            {12, nullptr, "AppendConfigurationData"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class USB_DS final : public ServiceFramework<USB_DS> {
+public:
+    explicit USB_DS() : ServiceFramework{"usb:ds"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "BindDevice"},
+            {1, nullptr, "BindClientProcess"},
+            {2, nullptr, "GetDsInterface"},
+            {3, nullptr, "GetStateChangeEvent"},
+            {4, nullptr, "GetState"},
+            {5, nullptr, "ClearDeviceData"},
+            {6, nullptr, "AddUsbStringDescriptor"},
+            {7, nullptr, "DeleteUsbStringDescriptor"},
+            {8, nullptr, "SetUsbDeviceDescriptor"},
+            {9, nullptr, "SetBinaryObjectStore"},
+            {10, nullptr, "Enable"},
+            {11, nullptr, "Disable"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class IClientEpSession final : public ServiceFramework<IClientEpSession> {
+public:
+    explicit IClientEpSession() : ServiceFramework{"IClientEpSession"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Unknown1"},
+            {1, nullptr, "Unknown2"},
+            {2, nullptr, "Unknown3"},
+            {3, nullptr, "Unknown4"},
+            {4, nullptr, "PostBufferAsync"},
+            {5, nullptr, "Unknown5"},
+            {6, nullptr, "Unknown6"},
+            {7, nullptr, "Unknown7"},
+            {8, nullptr, "Unknown8"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class IClientIfSession final : public ServiceFramework<IClientIfSession> {
+public:
+    explicit IClientIfSession() : ServiceFramework{"IClientIfSession"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Unknown1"},
+            {1, nullptr, "Unknown2"},
+            {2, nullptr, "Unknown3"},
+            {3, nullptr, "Unknown4"},
+            {4, nullptr, "Unknown5"},
+            {5, nullptr, "CtrlXferAsync"},
+            {6, nullptr, "Unknown6"},
+            {7, nullptr, "GetCtrlXferReport"},
+            {8, nullptr, "Unknown7"},
+            {9, nullptr, "GetClientEpSession"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class USB_HS final : public ServiceFramework<USB_HS> {
+public:
+    explicit USB_HS() : ServiceFramework{"usb:hs"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "BindClientProcess"},
+            {1, nullptr, "Unknown1"},
+            {2, nullptr, "Unknown2"},
+            {3, nullptr, "Unknown3"},
+            {4, nullptr, "Unknown4"},
+            {5, nullptr, "Unknown5"},
+            {6, nullptr, "GetInterfaceStateChangeEvent"},
+            {7, nullptr, "GetClientIfSession"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class IPdSession final : public ServiceFramework<IPdSession> {
+public:
+    explicit IPdSession() : ServiceFramework{"IPdSession"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "BindNoticeEvent"},
+            {1, nullptr, "Unknown1"},
+            {2, nullptr, "GetStatus"},
+            {3, nullptr, "GetNotice"},
+            {4, nullptr, "Unknown2"},
+            {5, nullptr, "Unknown3"},
+            {6, nullptr, "ReplyPowerRequest"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class USB_PD final : public ServiceFramework<USB_PD> {
+public:
+    explicit USB_PD() : ServiceFramework{"usb:pd"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &USB_PD::GetPdSession, "GetPdSession"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetPdSession(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IPdSession>();
+
+        LOG_DEBUG(Service_USB, "called");
+    }
+};
+
+class IPdCradleSession final : public ServiceFramework<IPdCradleSession> {
+public:
+    explicit IPdCradleSession() : ServiceFramework{"IPdCradleSession"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "VdmUserWrite"},
+            {1, nullptr, "VdmUserRead"},
+            {2, nullptr, "Vdm20Init"},
+            {3, nullptr, "GetFwType"},
+            {4, nullptr, "GetFwRevision"},
+            {5, nullptr, "GetManufacturerId"},
+            {6, nullptr, "GetDeviceId"},
+            {7, nullptr, "Unknown1"},
+            {8, nullptr, "Unknown2"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class USB_PD_C final : public ServiceFramework<USB_PD_C> {
+public:
+    explicit USB_PD_C() : ServiceFramework{"usb:pd:c"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &USB_PD_C::GetPdCradleSession, "GetPdCradleSession"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetPdCradleSession(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IPdCradleSession>();
+
+        LOG_DEBUG(Service_USB, "called");
+    }
+};
+
+class USB_PM final : public ServiceFramework<USB_PM> {
+public:
+    explicit USB_PM() : ServiceFramework{"usb:pm"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Unknown1"},
+            {1, nullptr, "Unknown2"},
+            {2, nullptr, "Unknown3"},
+            {3, nullptr, "Unknown4"},
+            {4, nullptr, "Unknown5"},
+            {5, nullptr, "Unknown6"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+void InstallInterfaces(SM::ServiceManager& sm) {
+    std::make_shared<USB_DS>()->InstallAsService(sm);
+    std::make_shared<USB_HS>()->InstallAsService(sm);
+    std::make_shared<USB_PD>()->InstallAsService(sm);
+    std::make_shared<USB_PD_C>()->InstallAsService(sm);
+    std::make_shared<USB_PM>()->InstallAsService(sm);
+}
+
+} // namespace Service::USB

src/core/hle/service/usb/usb.h

@@ -0,0 +1,15 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace Service::SM {
+class ServiceManager;
+}
+
+namespace Service::USB {
+
+void InstallInterfaces(SM::ServiceManager& sm);
+
+} // namespace Service::USB

src/core/loader/deconstructed_rom_directory.cpp

@@ -20,6 +20,10 @@ namespace Loader {
 AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile file)
     : AppLoader(std::move(file)) {}
 
+AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(
+    FileSys::VirtualDir directory)
+    : AppLoader(directory->GetFile("main")), dir(std::move(directory)) {}
+
 FileType AppLoader_DeconstructedRomDirectory::IdentifyType(const FileSys::VirtualFile& file) {
     if (FileSys::IsDirectoryExeFS(file->GetContainingDirectory())) {
         return FileType::DeconstructedRomDirectory;
@@ -34,7 +38,12 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
         return ResultStatus::ErrorAlreadyLoaded;
     }
 
-    const FileSys::VirtualDir dir = file->GetContainingDirectory();
+    if (dir == nullptr) {
+        if (file == nullptr)
+            return ResultStatus::ErrorInvalidFormat;
+        dir = file->GetContainingDirectory();
+    }
+
     const FileSys::VirtualFile npdm = dir->GetFile("main.npdm");
     if (npdm == nullptr)
         return ResultStatus::ErrorInvalidFormat;

src/core/loader/deconstructed_rom_directory.h

@@ -22,6 +22,9 @@ class AppLoader_DeconstructedRomDirectory final : public AppLoader {
 public:
     explicit AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile main_file);
 
+    // Overload to accept exefs directory. Must contain 'main' and 'main.npdm'
+    explicit AppLoader_DeconstructedRomDirectory(FileSys::VirtualDir directory);
+
     /**
      * Returns the type of the file
      * @param file std::shared_ptr<VfsFile> open file
@@ -40,6 +43,7 @@ public:
 private:
     FileSys::ProgramMetadata metadata;
     FileSys::VirtualFile romfs;
+    FileSys::VirtualDir dir;
 };
 
 } // namespace Loader

src/core/loader/nca.cpp

@@ -22,7 +22,8 @@
 
 namespace Loader {
 
-AppLoader_NCA::AppLoader_NCA(FileSys::VirtualFile file) : AppLoader(std::move(file)) {}
+AppLoader_NCA::AppLoader_NCA(FileSys::VirtualFile file_)
+    : AppLoader(std::move(file_)), nca(std::make_unique<FileSys::NCA>(file)) {}
 
 FileType AppLoader_NCA::IdentifyType(const FileSys::VirtualFile& file) {
     FileSys::NCA nca(file);
@@ -39,8 +40,7 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
         return ResultStatus::ErrorAlreadyLoaded;
     }
 
-    nca = std::make_unique<FileSys::NCA>(file);
-    ResultStatus result = nca->GetStatus();
+    const auto result = nca->GetStatus();
     if (result != ResultStatus::Success) {
         return result;
     }
@@ -48,44 +48,16 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     if (nca->GetType() != FileSys::NCAContentType::Program)
         return ResultStatus::ErrorInvalidFormat;
 
-    auto exefs = nca->GetExeFS();
+    const auto exefs = nca->GetExeFS();
 
     if (exefs == nullptr)
         return ResultStatus::ErrorInvalidFormat;
 
-    result = metadata.Load(exefs->GetFile("main.npdm"));
-    if (result != ResultStatus::Success) {
-        return result;
-    }
-    metadata.Print();
+    directory_loader = std::make_unique<AppLoader_DeconstructedRomDirectory>(exefs);
 
-    const FileSys::ProgramAddressSpaceType arch_bits{metadata.GetAddressSpaceType()};
-    if (arch_bits == FileSys::ProgramAddressSpaceType::Is32Bit) {
-        return ResultStatus::ErrorUnsupportedArch;
-    }
-
-    VAddr next_load_addr{Memory::PROCESS_IMAGE_VADDR};
-    for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
-                               "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
-        const VAddr load_addr = next_load_addr;
-
-        next_load_addr = AppLoader_NSO::LoadModule(exefs->GetFile(module), load_addr);
-        if (next_load_addr) {
-            LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
-            // Register module with GDBStub
-            GDBStub::RegisterModule(module, load_addr, next_load_addr - 1, false);
-        } else {
-            next_load_addr = load_addr;
-        }
-    }
-
-    process->program_id = metadata.GetTitleID();
-    process->svc_access_mask.set();
-    process->address_mappings = default_address_mappings;
-    process->resource_limit =
-        Kernel::ResourceLimit::GetForCategory(Kernel::ResourceLimitCategory::APPLICATION);
-    process->Run(Memory::PROCESS_IMAGE_VADDR, metadata.GetMainThreadPriority(),
-                 metadata.GetMainThreadStackSize());
+    const auto load_result = directory_loader->Load(process);
+    if (load_result != ResultStatus::Success)
+        return load_result;
 
     if (nca->GetRomFS() != nullptr && nca->GetRomFS()->GetSize() > 0)
         Service::FileSystem::RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(*this));

src/core/loader/nca.h

@@ -10,6 +10,7 @@
 #include "core/file_sys/program_metadata.h"
 #include "core/hle/kernel/object.h"
 #include "core/loader/loader.h"
+#include "deconstructed_rom_directory.h"
 
 namespace Loader {
 
@@ -41,6 +42,7 @@ private:
     FileSys::ProgramMetadata metadata;
 
     std::unique_ptr<FileSys::NCA> nca;
+    std::unique_ptr<AppLoader_DeconstructedRomDirectory> directory_loader;
 };
 
 } // namespace Loader

src/core/perf_stats.cpp

@@ -40,22 +40,21 @@ void PerfStats::EndGameFrame() {
     game_frames += 1;
 }
 
-PerfStats::Results PerfStats::GetAndResetStats(u64 current_system_time_us) {
+PerfStats::Results PerfStats::GetAndResetStats(microseconds current_system_time_us) {
     std::lock_guard<std::mutex> lock(object_mutex);
 
-    auto now = Clock::now();
+    const auto now = Clock::now();
     // Walltime elapsed since stats were reset
-    auto interval = duration_cast<DoubleSecs>(now - reset_point).count();
+    const auto interval = duration_cast<DoubleSecs>(now - reset_point).count();
 
-    auto system_us_per_second =
-        static_cast<double>(current_system_time_us - reset_point_system_us) / interval;
+    const auto system_us_per_second = (current_system_time_us - reset_point_system_us) / interval;
 
     Results results{};
     results.system_fps = static_cast<double>(system_frames) / interval;
     results.game_fps = static_cast<double>(game_frames) / interval;
     results.frametime = duration_cast<DoubleSecs>(accumulated_frametime).count() /
                         static_cast<double>(system_frames);
-    results.emulation_speed = system_us_per_second / 1'000'000.0;
+    results.emulation_speed = system_us_per_second.count() / 1'000'000.0;
 
     // Reset counters
     reset_point = now;
@@ -74,10 +73,10 @@ double PerfStats::GetLastFrameTimeScale() {
     return duration_cast<DoubleSecs>(previous_frame_length).count() / FRAME_LENGTH;
 }
 
-void FrameLimiter::DoFrameLimiting(u64 current_system_time_us) {
+void FrameLimiter::DoFrameLimiting(microseconds current_system_time_us) {
     // Max lag caused by slow frames. Can be adjusted to compensate for too many slow frames. Higher
     // values increase the time needed to recover and limit framerate again after spikes.
-    constexpr microseconds MAX_LAG_TIME_US = 25ms;
+    constexpr microseconds MAX_LAG_TIME_US = 25us;
 
     if (!Settings::values.toggle_framelimit) {
         return;
@@ -85,7 +84,7 @@ void FrameLimiter::DoFrameLimiting(u64 current_system_time_us) {
 
     auto now = Clock::now();
 
-    frame_limiting_delta_err += microseconds(current_system_time_us - previous_system_time_us);
+    frame_limiting_delta_err += current_system_time_us - previous_system_time_us;
     frame_limiting_delta_err -= duration_cast<microseconds>(now - previous_walltime);
     frame_limiting_delta_err =
         std::clamp(frame_limiting_delta_err, -MAX_LAG_TIME_US, MAX_LAG_TIME_US);

src/core/perf_stats.h

@@ -33,7 +33,7 @@ public:
     void EndSystemFrame();
     void EndGameFrame();
 
-    Results GetAndResetStats(u64 current_system_time_us);
+    Results GetAndResetStats(std::chrono::microseconds current_system_time_us);
 
     /**
      * Gets the ratio between walltime and the emulated time of the previous system frame. This is
@@ -47,7 +47,7 @@ private:
     /// Point when the cumulative counters were reset
     Clock::time_point reset_point = Clock::now();
     /// System time when the cumulative counters were reset
-    u64 reset_point_system_us = 0;
+    std::chrono::microseconds reset_point_system_us{0};
 
     /// Cumulative duration (excluding v-sync/frame-limiting) of frames since last reset
     Clock::duration accumulated_frametime = Clock::duration::zero();
@@ -68,11 +68,11 @@ class FrameLimiter {
 public:
     using Clock = std::chrono::high_resolution_clock;
 
-    void DoFrameLimiting(u64 current_system_time_us);
+    void DoFrameLimiting(std::chrono::microseconds current_system_time_us);
 
 private:
     /// Emulated system time (in microseconds) at the last limiter invocation
-    u64 previous_system_time_us = 0;
+    std::chrono::microseconds previous_system_time_us{0};
     /// Walltime at the last limiter invocation
     Clock::time_point previous_walltime = Clock::now();
 

src/video_core/command_processor.cpp

@@ -29,10 +29,10 @@ enum class BufferMethods {
 };
 
 void GPU::WriteReg(u32 method, u32 subchannel, u32 value, u32 remaining_params) {
-    LOG_WARNING(HW_GPU,
-                "Processing method {:08X} on subchannel {} value "
-                "{:08X} remaining params {}",
-                method, subchannel, value, remaining_params);
+    LOG_TRACE(HW_GPU,
+              "Processing method {:08X} on subchannel {} value "
+              "{:08X} remaining params {}",
+              method, subchannel, value, remaining_params);
 
     if (method == static_cast<u32>(BufferMethods::BindObject)) {
         // Bind the current subchannel to the desired engine id.

src/video_core/engines/maxwell_3d.cpp

@@ -238,6 +238,8 @@ void Maxwell3D::ProcessCBBind(Regs::ShaderStage stage) {
 
     auto& buffer = shader.const_buffers[bind_data.index];
 
+    ASSERT(bind_data.index < Regs::MaxConstBuffers);
+
     buffer.enabled = bind_data.valid.Value() != 0;
     buffer.index = bind_data.index;
     buffer.address = regs.const_buffer.BufferAddress();
@@ -285,8 +287,6 @@ Texture::TICEntry Maxwell3D::GetTICEntry(u32 tic_index) const {
 
     // TODO(Subv): Different data types for separate components are not supported
     ASSERT(r_type == g_type && r_type == b_type && r_type == a_type);
-    // TODO(Subv): Only UNORM formats are supported for now.
-    ASSERT(r_type == Texture::ComponentType::UNORM);
 
     return tic_entry;
 }

src/video_core/engines/maxwell_3d.h

@@ -44,7 +44,7 @@ public:
         static constexpr size_t MaxShaderProgram = 6;
         static constexpr size_t MaxShaderStage = 5;
         // Maximum number of const buffers per shader stage.
-        static constexpr size_t MaxConstBuffers = 16;
+        static constexpr size_t MaxConstBuffers = 18;
 
         enum class QueryMode : u32 {
             Write = 0,

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -659,7 +659,10 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, GLuint progr
         auto& buffer_draw_state =
             state.draw.const_buffers[static_cast<size_t>(stage)][used_buffer.GetIndex()];
 
-        ASSERT_MSG(buffer.enabled, "Attempted to upload disabled constbuffer");
+        if (!buffer.enabled) {
+            continue;
+        }
+
         buffer_draw_state.enabled = true;
         buffer_draw_state.bindpoint = current_bindpoint + bindpoint;
 

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -46,6 +46,8 @@ struct FormatTuple {
     params.height = Common::AlignUp(config.tic.Height(), GetCompressionFactor(params.pixel_format));
     params.unaligned_height = config.tic.Height();
     params.size_in_bytes = params.SizeInBytes();
+    params.cache_width = Common::AlignUp(params.width, 16);
+    params.cache_height = Common::AlignUp(params.height, 16);
     return params;
 }
 
@@ -63,6 +65,8 @@ struct FormatTuple {
     params.height = config.height;
     params.unaligned_height = config.height;
     params.size_in_bytes = params.SizeInBytes();
+    params.cache_width = Common::AlignUp(params.width, 16);
+    params.cache_height = Common::AlignUp(params.height, 16);
     return params;
 }
 
@@ -82,6 +86,8 @@ struct FormatTuple {
     params.height = zeta_height;
     params.unaligned_height = zeta_height;
     params.size_in_bytes = params.SizeInBytes();
+    params.cache_width = Common::AlignUp(params.width, 16);
+    params.cache_height = Common::AlignUp(params.height, 16);
     return params;
 }
 
@@ -680,12 +686,12 @@ Surface RasterizerCacheOpenGL::GetSurface(const SurfaceParams& params) {
             // If use_accurate_framebuffers is enabled, always load from memory
             FlushSurface(surface);
             UnregisterSurface(surface);
-        } else if (surface->GetSurfaceParams() != params) {
-            // If surface parameters changed, recreate the surface from the old one
-            return RecreateSurface(surface, params);
-        } else {
+        } else if (surface->GetSurfaceParams().IsCompatibleSurface(params)) {
             // Use the cached surface as-is
             return surface;
+        } else {
+            // If surface parameters changed, recreate the surface from the old one
+            return RecreateSurface(surface, params);
         }
     }
 

src/video_core/renderer_opengl/gl_rasterizer_cache.h

@@ -9,6 +9,7 @@
 #include <memory>
 #include <vector>
 #include <boost/icl/interval_map.hpp>
+
 #include "common/common_types.h"
 #include "common/math_util.h"
 #include "video_core/engines/maxwell_3d.h"
@@ -203,8 +204,9 @@ struct SurfaceParams {
 
     static PixelFormat PixelFormatFromRenderTargetFormat(Tegra::RenderTargetFormat format) {
         switch (format) {
+        // TODO (Hexagon12): Converting SRGBA to RGBA is a hack and doesn't completely correct the
+        // gamma.
         case Tegra::RenderTargetFormat::RGBA8_SRGB:
-            return PixelFormat::SRGBA8;
         case Tegra::RenderTargetFormat::RGBA8_UNORM:
             return PixelFormat::ABGR8;
         case Tegra::RenderTargetFormat::BGRA8_UNORM:
@@ -546,6 +548,12 @@ struct SurfaceParams {
         return !operator==(other);
     }
 
+    /// Checks if surfaces are compatible for caching
+    bool IsCompatibleSurface(const SurfaceParams& other) const {
+        return std::tie(pixel_format, type, cache_width, cache_height) ==
+               std::tie(other.pixel_format, other.type, other.cache_width, other.cache_height);
+    }
+
     Tegra::GPUVAddr addr;
     bool is_tiled;
     u32 block_height;
@@ -556,6 +564,10 @@ struct SurfaceParams {
     u32 height;
     u32 unaligned_height;
     size_t size_in_bytes;
+
+    // Parameters used for caching only
+    u32 cache_width;
+    u32 cache_height;
 };
 
 class CachedSurface final {

src/video_core/renderer_opengl/gl_state.h

@@ -7,6 +7,10 @@
 #include <array>
 #include <glad/glad.h>
 
+#include "video_core/engines/maxwell_3d.h"
+
+using Regs = Tegra::Engines::Maxwell3D::Regs;
+
 namespace TextureUnits {
 
 struct TextureUnit {
@@ -120,7 +124,7 @@ public:
             GLuint bindpoint;
             GLuint ssbo;
         };
-        std::array<std::array<ConstBufferConfig, 16>, 5> const_buffers{};
+        std::array<std::array<ConstBufferConfig, Regs::MaxConstBuffers>, 5> const_buffers;
     } draw;
 
     struct {

src/yuzu/about_dialog.cpp

@@ -15,4 +15,4 @@ AboutDialog::AboutDialog(QWidget* parent) : QDialog(parent), ui(new Ui::AboutDia
                                        Common::g_scm_desc, QString(Common::g_build_date).left(10)));
 }
 
-AboutDialog::~AboutDialog() {}
+AboutDialog::~AboutDialog() = default;

src/yuzu/about_dialog.h

@@ -16,7 +16,7 @@ class AboutDialog : public QDialog {
 
 public:
     explicit AboutDialog(QWidget* parent);
-    ~AboutDialog();
+    ~AboutDialog() override;
 
 private:
     std::unique_ptr<Ui::AboutDialog> ui;

src/yuzu/bootmanager.h

@@ -106,7 +106,7 @@ class GRenderWindow : public QWidget, public EmuWindow {
 
 public:
     GRenderWindow(QWidget* parent, EmuThread* emu_thread);
-    ~GRenderWindow();
+    ~GRenderWindow() override;
 
     // EmuWindow implementation
     void SwapBuffers() override;

src/yuzu/configuration/configure_debug.cpp

@@ -24,7 +24,7 @@ ConfigureDebug::ConfigureDebug(QWidget* parent) : QWidget(parent), ui(new Ui::Co
     });
 }
 
-ConfigureDebug::~ConfigureDebug() {}
+ConfigureDebug::~ConfigureDebug() = default;
 
 void ConfigureDebug::setConfiguration() {
     ui->toggle_gdbstub->setChecked(Settings::values.use_gdbstub);

src/yuzu/configuration/configure_debug.ui

@@ -22,13 +22,6 @@
         <string>GDB</string>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_3">
-        <item>
-         <widget class="QLabel" name="label_1">
-          <property name="text">
-           <string>The GDB Stub only works correctly when the CPU JIT is off.</string>
-          </property>
-         </widget>
-        </item>
         <item>
          <layout class="QHBoxLayout" name="horizontalLayout_1">
           <item>

src/yuzu/configuration/configure_dialog.cpp

@@ -6,13 +6,16 @@
 #include "ui_configure.h"
 #include "yuzu/configuration/config.h"
 #include "yuzu/configuration/configure_dialog.h"
+#include "yuzu/hotkeys.h"
 
-ConfigureDialog::ConfigureDialog(QWidget* parent) : QDialog(parent), ui(new Ui::ConfigureDialog) {
+ConfigureDialog::ConfigureDialog(QWidget* parent, const HotkeyRegistry& registry)
+    : QDialog(parent), ui(new Ui::ConfigureDialog) {
     ui->setupUi(this);
+    ui->generalTab->PopulateHotkeyList(registry);
     this->setConfiguration();
 }
 
-ConfigureDialog::~ConfigureDialog() {}
+ConfigureDialog::~ConfigureDialog() = default;
 
 void ConfigureDialog::setConfiguration() {}
 

src/yuzu/configuration/configure_dialog.h

@@ -7,6 +7,8 @@
 #include <memory>
 #include <QDialog>
 
+class HotkeyRegistry;
+
 namespace Ui {
 class ConfigureDialog;
 }
@@ -15,7 +17,7 @@ class ConfigureDialog : public QDialog {
     Q_OBJECT
 
 public:
-    explicit ConfigureDialog(QWidget* parent);
+    explicit ConfigureDialog(QWidget* parent, const HotkeyRegistry& registry);
     ~ConfigureDialog();
 
     void applyConfiguration();

src/yuzu/configuration/configure_general.cpp

@@ -24,7 +24,7 @@ ConfigureGeneral::ConfigureGeneral(QWidget* parent)
     ui->use_docked_mode->setEnabled(!Core::System::GetInstance().IsPoweredOn());
 }
 
-ConfigureGeneral::~ConfigureGeneral() {}
+ConfigureGeneral::~ConfigureGeneral() = default;
 
 void ConfigureGeneral::setConfiguration() {
     ui->toggle_deepscan->setChecked(UISettings::values.gamedir_deepscan);
@@ -35,6 +35,10 @@ void ConfigureGeneral::setConfiguration() {
     ui->use_docked_mode->setChecked(Settings::values.use_docked_mode);
 }
 
+void ConfigureGeneral::PopulateHotkeyList(const HotkeyRegistry& registry) {
+    ui->widget->Populate(registry);
+}
+
 void ConfigureGeneral::applyConfiguration() {
     UISettings::values.gamedir_deepscan = ui->toggle_deepscan->isChecked();
     UISettings::values.confirm_before_closing = ui->toggle_check_exit->isChecked();

src/yuzu/configuration/configure_general.h

@@ -7,6 +7,8 @@
 #include <memory>
 #include <QWidget>
 
+class HotkeyRegistry;
+
 namespace Ui {
 class ConfigureGeneral;
 }
@@ -18,11 +20,11 @@ public:
     explicit ConfigureGeneral(QWidget* parent = nullptr);
     ~ConfigureGeneral();
 
+    void PopulateHotkeyList(const HotkeyRegistry& registry);
     void applyConfiguration();
 
 private:
     void setConfiguration();
 
-private:
     std::unique_ptr<Ui::ConfigureGeneral> ui;
 };

src/yuzu/configuration/configure_graphics.cpp

@@ -14,7 +14,7 @@ ConfigureGraphics::ConfigureGraphics(QWidget* parent)
     this->setConfiguration();
 }
 
-ConfigureGraphics::~ConfigureGraphics() {}
+ConfigureGraphics::~ConfigureGraphics() = default;
 
 enum class Resolution : int {
     Auto,

src/yuzu/configuration/configure_system.cpp

@@ -35,7 +35,7 @@ ConfigureSystem::ConfigureSystem(QWidget* parent) : QWidget(parent), ui(new Ui::
     this->setConfiguration();
 }
 
-ConfigureSystem::~ConfigureSystem() {}
+ConfigureSystem::~ConfigureSystem() = default;
 
 void ConfigureSystem::setConfiguration() {
     enabled = !Core::System::GetInstance().IsPoweredOn();

src/yuzu/debugger/graphics/graphics_surface.cpp

@@ -34,7 +34,8 @@ static Tegra::Texture::TextureFormat ConvertToTextureFormat(
 
 SurfacePicture::SurfacePicture(QWidget* parent, GraphicsSurfaceWidget* surface_widget_)
     : QLabel(parent), surface_widget(surface_widget_) {}
-SurfacePicture::~SurfacePicture() {}
+
+SurfacePicture::~SurfacePicture() = default;
 
 void SurfacePicture::mousePressEvent(QMouseEvent* event) {
     // Only do something while the left mouse button is held down

src/yuzu/debugger/graphics/graphics_surface.h

@@ -22,11 +22,11 @@ class SurfacePicture : public QLabel {
 public:
     explicit SurfacePicture(QWidget* parent = nullptr,
                             GraphicsSurfaceWidget* surface_widget = nullptr);
-    ~SurfacePicture();
+    ~SurfacePicture() override;
 
 protected slots:
-    virtual void mouseMoveEvent(QMouseEvent* event);
-    virtual void mousePressEvent(QMouseEvent* event);
+    void mouseMoveEvent(QMouseEvent* event) override;
+    void mousePressEvent(QMouseEvent* event) override;
 
 private:
     GraphicsSurfaceWidget* surface_widget;

src/yuzu/debugger/wait_tree.cpp

@@ -14,7 +14,7 @@
 #include "core/hle/kernel/timer.h"
 #include "core/hle/kernel/wait_object.h"
 
-WaitTreeItem::~WaitTreeItem() {}
+WaitTreeItem::~WaitTreeItem() = default;
 
 QColor WaitTreeItem::GetColor() const {
     return QColor(Qt::GlobalColor::black);
@@ -316,7 +316,7 @@ std::vector<std::unique_ptr<WaitTreeItem>> WaitTreeEvent::GetChildren() const {
 
     list.push_back(std::make_unique<WaitTreeText>(
         tr("reset type = %1")
-            .arg(GetResetTypeQString(static_cast<const Kernel::Event&>(object).reset_type))));
+            .arg(GetResetTypeQString(static_cast<const Kernel::Event&>(object).GetResetType()))));
     return list;
 }
 

src/yuzu/debugger/wait_tree.h

@@ -25,11 +25,13 @@ class WaitTreeThread;
 class WaitTreeItem : public QObject {
     Q_OBJECT
 public:
+    ~WaitTreeItem() override;
+
     virtual bool IsExpandable() const;
     virtual std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const;
     virtual QString GetText() const = 0;
     virtual QColor GetColor() const;
-    virtual ~WaitTreeItem();
+
     void Expand();
     WaitTreeItem* Parent() const;
     const std::vector<std::unique_ptr<WaitTreeItem>>& Children() const;

src/yuzu/game_list.cpp

@@ -162,15 +162,15 @@ void GameList::onTextChanged(const QString& newText) {
         }
         search_field->setFilterResult(rowCount, rowCount);
     } else {
-        QStandardItem* child_file;
-        QString file_path, file_name, file_title, file_programmid;
         int result_count = 0;
         for (int i = 0; i < rowCount; ++i) {
-            child_file = item_model->item(i, 0);
-            file_path = child_file->data(GameListItemPath::FullPathRole).toString().toLower();
-            file_name = file_path.mid(file_path.lastIndexOf("/") + 1);
-            file_title = child_file->data(GameListItemPath::TitleRole).toString().toLower();
-            file_programmid =
+            const QStandardItem* child_file = item_model->item(i, 0);
+            const QString file_path =
+                child_file->data(GameListItemPath::FullPathRole).toString().toLower();
+            QString file_name = file_path.mid(file_path.lastIndexOf('/') + 1);
+            const QString file_title =
+                child_file->data(GameListItemPath::TitleRole).toString().toLower();
+            const QString file_programmid =
                 child_file->data(GameListItemPath::ProgramIdRole).toString().toLower();
 
             // Only items which filename in combination with its title contains all words
@@ -258,18 +258,20 @@ void GameList::AddEntry(const QList<QStandardItem*>& entry_items) {
 
 void GameList::ValidateEntry(const QModelIndex& item) {
     // We don't care about the individual QStandardItem that was selected, but its row.
-    int row = item_model->itemFromIndex(item)->row();
-    QStandardItem* child_file = item_model->invisibleRootItem()->child(row, COLUMN_NAME);
-    QString file_path = child_file->data(GameListItemPath::FullPathRole).toString();
+    const int row = item_model->itemFromIndex(item)->row();
+    const QStandardItem* child_file = item_model->invisibleRootItem()->child(row, COLUMN_NAME);
+    const QString file_path = child_file->data(GameListItemPath::FullPathRole).toString();
 
     if (file_path.isEmpty())
         return;
-    std::string std_file_path(file_path.toStdString());
-    if (!FileUtil::Exists(std_file_path))
+
+    if (!QFileInfo::exists(file_path))
         return;
-    if (FileUtil::IsDirectory(std_file_path)) {
-        QDir dir(std_file_path.c_str());
-        QStringList matching_main = dir.entryList(QStringList("main"), QDir::Files);
+
+    const QFileInfo file_info{file_path};
+    if (file_info.isDir()) {
+        const QDir dir{file_path};
+        const QStringList matching_main = dir.entryList(QStringList("main"), QDir::Files);
         if (matching_main.size() == 1) {
             emit GameChosen(dir.path() + DIR_SEP + matching_main[0]);
         }
@@ -368,21 +370,23 @@ void GameList::LoadInterfaceLayout() {
 const QStringList GameList::supported_file_extensions = {"nso", "nro", "nca", "xci"};
 
 static bool HasSupportedFileExtension(const std::string& file_name) {
-    QFileInfo file = QFileInfo(file_name.c_str());
+    const QFileInfo file = QFileInfo(QString::fromStdString(file_name));
     return GameList::supported_file_extensions.contains(file.suffix(), Qt::CaseInsensitive);
 }
 
 static bool IsExtractedNCAMain(const std::string& file_name) {
-    return QFileInfo(file_name.c_str()).fileName() == "main";
+    return QFileInfo(QString::fromStdString(file_name)).fileName() == "main";
 }
 
 static QString FormatGameName(const std::string& physical_name) {
-    QFileInfo file_info(physical_name.c_str());
+    const QString physical_name_as_qstring = QString::fromStdString(physical_name);
+    const QFileInfo file_info(physical_name_as_qstring);
+
     if (IsExtractedNCAMain(physical_name)) {
         return file_info.dir().path();
-    } else {
-        return QString::fromStdString(physical_name);
     }
+
+    return physical_name_as_qstring;
 }
 
 void GameList::RefreshGameDirectory() {

src/yuzu/game_list_p.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <atomic>
+#include <utility>
 #include <QImage>
 #include <QRunnable>
 #include <QStandardItem>
@@ -27,9 +28,8 @@ static QPixmap GetDefaultIcon(bool large) {
 class GameListItem : public QStandardItem {
 
 public:
-    GameListItem() : QStandardItem() {}
-    GameListItem(const QString& string) : QStandardItem(string) {}
-    virtual ~GameListItem() override {}
+    GameListItem() = default;
+    explicit GameListItem(const QString& string) : QStandardItem(string) {}
 };
 
 /**
@@ -45,9 +45,8 @@ public:
     static const int TitleRole = Qt::UserRole + 2;
     static const int ProgramIdRole = Qt::UserRole + 3;
 
-    GameListItemPath() : GameListItem() {}
-    GameListItemPath(const QString& game_path, const std::vector<u8>& smdh_data, u64 program_id)
-        : GameListItem() {
+    GameListItemPath() = default;
+    GameListItemPath(const QString& game_path, const std::vector<u8>& smdh_data, u64 program_id) {
         setData(game_path, FullPathRole);
         setData(qulonglong(program_id), ProgramIdRole);
     }
@@ -75,8 +74,8 @@ class GameListItemSize : public GameListItem {
 public:
     static const int SizeRole = Qt::UserRole + 1;
 
-    GameListItemSize() : GameListItem() {}
-    GameListItemSize(const qulonglong size_bytes) : GameListItem() {
+    GameListItemSize() = default;
+    explicit GameListItemSize(const qulonglong size_bytes) {
         setData(size_bytes, SizeRole);
     }
 
@@ -111,7 +110,7 @@ class GameListWorker : public QObject, public QRunnable {
 
 public:
     GameListWorker(QString dir_path, bool deep_scan)
-        : QObject(), QRunnable(), dir_path(dir_path), deep_scan(deep_scan) {}
+        : dir_path(std::move(dir_path)), deep_scan(deep_scan) {}
 
 public slots:
     /// Starts the processing of directory tree information.

src/yuzu/hotkeys.cpp

@@ -10,58 +10,53 @@
 #include "yuzu/hotkeys.h"
 #include "yuzu/ui_settings.h"
 
-struct Hotkey {
-    Hotkey() : shortcut(nullptr), context(Qt::WindowShortcut) {}
+HotkeyRegistry::HotkeyRegistry() = default;
+HotkeyRegistry::~HotkeyRegistry() = default;
 
-    QKeySequence keyseq;
-    QShortcut* shortcut;
-    Qt::ShortcutContext context;
-};
-
-typedef std::map<QString, Hotkey> HotkeyMap;
-typedef std::map<QString, HotkeyMap> HotkeyGroupMap;
-
-HotkeyGroupMap hotkey_groups;
-
-void SaveHotkeys() {
-    UISettings::values.shortcuts.clear();
-    for (auto group : hotkey_groups) {
-        for (auto hotkey : group.second) {
-            UISettings::values.shortcuts.emplace_back(
-                UISettings::Shortcut(group.first + "/" + hotkey.first,
-                                     UISettings::ContextualShortcut(hotkey.second.keyseq.toString(),
-                                                                    hotkey.second.context)));
-        }
-    }
-}
-
-void LoadHotkeys() {
+void HotkeyRegistry::LoadHotkeys() {
     // Make sure NOT to use a reference here because it would become invalid once we call
     // beginGroup()
     for (auto shortcut : UISettings::values.shortcuts) {
-        QStringList cat = shortcut.first.split("/");
+        const QStringList cat = shortcut.first.split('/');
         Q_ASSERT(cat.size() >= 2);
 
         // RegisterHotkey assigns default keybindings, so use old values as default parameters
         Hotkey& hk = hotkey_groups[cat[0]][cat[1]];
         if (!shortcut.second.first.isEmpty()) {
             hk.keyseq = QKeySequence::fromString(shortcut.second.first);
-            hk.context = (Qt::ShortcutContext)shortcut.second.second;
+            hk.context = static_cast<Qt::ShortcutContext>(shortcut.second.second);
         }
         if (hk.shortcut)
             hk.shortcut->setKey(hk.keyseq);
     }
 }
 
-void RegisterHotkey(const QString& group, const QString& action, const QKeySequence& default_keyseq,
-                    Qt::ShortcutContext default_context) {
-    if (hotkey_groups[group].find(action) == hotkey_groups[group].end()) {
-        hotkey_groups[group][action].keyseq = default_keyseq;
-        hotkey_groups[group][action].context = default_context;
+void HotkeyRegistry::SaveHotkeys() {
+    UISettings::values.shortcuts.clear();
+    for (const auto& group : hotkey_groups) {
+        for (const auto& hotkey : group.second) {
+            UISettings::values.shortcuts.emplace_back(
+                UISettings::Shortcut(group.first + '/' + hotkey.first,
+                                     UISettings::ContextualShortcut(hotkey.second.keyseq.toString(),
+                                                                    hotkey.second.context)));
+        }
     }
 }
 
-QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widget) {
+void HotkeyRegistry::RegisterHotkey(const QString& group, const QString& action,
+                                    const QKeySequence& default_keyseq,
+                                    Qt::ShortcutContext default_context) {
+    auto& hotkey_group = hotkey_groups[group];
+    if (hotkey_group.find(action) != hotkey_group.end()) {
+        return;
+    }
+
+    auto& hotkey_action = hotkey_groups[group][action];
+    hotkey_action.keyseq = default_keyseq;
+    hotkey_action.context = default_context;
+}
+
+QShortcut* HotkeyRegistry::GetHotkey(const QString& group, const QString& action, QWidget* widget) {
     Hotkey& hk = hotkey_groups[group][action];
 
     if (!hk.shortcut)
@@ -72,10 +67,12 @@ QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widge
 
 GHotkeysDialog::GHotkeysDialog(QWidget* parent) : QWidget(parent) {
     ui.setupUi(this);
+}
 
-    for (auto group : hotkey_groups) {
+void GHotkeysDialog::Populate(const HotkeyRegistry& registry) {
+    for (const auto& group : registry.hotkey_groups) {
         QTreeWidgetItem* toplevel_item = new QTreeWidgetItem(QStringList(group.first));
-        for (auto hotkey : group.second) {
+        for (const auto& hotkey : group.second) {
             QStringList columns;
             columns << hotkey.first << hotkey.second.keyseq.toString();
             QTreeWidgetItem* item = new QTreeWidgetItem(columns);

src/yuzu/hotkeys.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <map>
 #include "ui_hotkeys.h"
 
 class QDialog;
@@ -11,47 +12,69 @@ class QKeySequence;
 class QSettings;
 class QShortcut;
 
-/**
- * Register a hotkey.
- *
- * @param group General group this hotkey belongs to (e.g. "Main Window", "Debugger")
- * @param action Name of the action (e.g. "Start Emulation", "Load Image")
- * @param default_keyseq Default key sequence to assign if the hotkey wasn't present in the settings
- * file before
- * @param default_context Default context to assign if the hotkey wasn't present in the settings
- * file before
- * @warning Both the group and action strings will be displayed in the hotkey settings dialog
- */
-void RegisterHotkey(const QString& group, const QString& action,
-                    const QKeySequence& default_keyseq = QKeySequence(),
-                    Qt::ShortcutContext default_context = Qt::WindowShortcut);
+class HotkeyRegistry final {
+public:
+    friend class GHotkeysDialog;
 
-/**
- * Returns a QShortcut object whose activated() signal can be connected to other QObjects' slots.
- *
- * @param group  General group this hotkey belongs to (e.g. "Main Window", "Debugger").
- * @param action Name of the action (e.g. "Start Emulation", "Load Image").
- * @param widget Parent widget of the returned QShortcut.
- * @warning If multiple QWidgets' call this function for the same action, the returned QShortcut
- * will be the same. Thus, you shouldn't rely on the caller really being the QShortcut's parent.
- */
-QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widget);
+    explicit HotkeyRegistry();
+    ~HotkeyRegistry();
 
-/**
- * Saves all registered hotkeys to the settings file.
- *
- * @note Each hotkey group will be stored a settings group; For each hotkey inside that group, a
- * settings group will be created to store the key sequence and the hotkey context.
- */
-void SaveHotkeys();
+    /**
+     * Loads hotkeys from the settings file.
+     *
+     * @note Yet unregistered hotkeys which are present in the settings will automatically be
+     *       registered.
+     */
+    void LoadHotkeys();
 
-/**
- * Loads hotkeys from the settings file.
- *
- * @note Yet unregistered hotkeys which are present in the settings will automatically be
- * registered.
- */
-void LoadHotkeys();
+    /**
+     * Saves all registered hotkeys to the settings file.
+     *
+     * @note Each hotkey group will be stored a settings group; For each hotkey inside that group, a
+     *       settings group will be created to store the key sequence and the hotkey context.
+     */
+    void SaveHotkeys();
+
+    /**
+     * Returns a QShortcut object whose activated() signal can be connected to other QObjects'
+     * slots.
+     *
+     * @param group  General group this hotkey belongs to (e.g. "Main Window", "Debugger").
+     * @param action Name of the action (e.g. "Start Emulation", "Load Image").
+     * @param widget Parent widget of the returned QShortcut.
+     * @warning If multiple QWidgets' call this function for the same action, the returned QShortcut
+     *          will be the same. Thus, you shouldn't rely on the caller really being the
+     *          QShortcut's parent.
+     */
+    QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widget);
+
+    /**
+     * Register a hotkey.
+     *
+     * @param group General group this hotkey belongs to (e.g. "Main Window", "Debugger")
+     * @param action Name of the action (e.g. "Start Emulation", "Load Image")
+     * @param default_keyseq Default key sequence to assign if the hotkey wasn't present in the
+     *                       settings file before
+     * @param default_context Default context to assign if the hotkey wasn't present in the settings
+     *                        file before
+     * @warning Both the group and action strings will be displayed in the hotkey settings dialog
+     */
+    void RegisterHotkey(const QString& group, const QString& action,
+                        const QKeySequence& default_keyseq = {},
+                        Qt::ShortcutContext default_context = Qt::WindowShortcut);
+
+private:
+    struct Hotkey {
+        QKeySequence keyseq;
+        QShortcut* shortcut = nullptr;
+        Qt::ShortcutContext context = Qt::WindowShortcut;
+    };
+
+    using HotkeyMap = std::map<QString, Hotkey>;
+    using HotkeyGroupMap = std::map<QString, HotkeyMap>;
+
+    HotkeyGroupMap hotkey_groups;
+};
 
 class GHotkeysDialog : public QWidget {
     Q_OBJECT
@@ -59,6 +82,8 @@ class GHotkeysDialog : public QWidget {
 public:
     explicit GHotkeysDialog(QWidget* parent = nullptr);
 
+    void Populate(const HotkeyRegistry& registry);
+
 private:
     Ui::hotkeys ui;
 };

src/yuzu/main.cpp

@@ -81,6 +81,8 @@ static void ShowCalloutMessage(const QString& message, CalloutFlag flag) {
 
 void GMainWindow::ShowCallouts() {}
 
+const int GMainWindow::max_recent_files_item;
+
 GMainWindow::GMainWindow() : config(new Config()), emu_thread(nullptr) {
 
     debug_context = Tegra::DebugContext::Construct();
@@ -206,43 +208,46 @@ void GMainWindow::InitializeRecentFileMenuActions() {
 }
 
 void GMainWindow::InitializeHotkeys() {
-    RegisterHotkey("Main Window", "Load File", QKeySequence::Open);
-    RegisterHotkey("Main Window", "Start Emulation");
-    RegisterHotkey("Main Window", "Continue/Pause", QKeySequence(Qt::Key_F4));
-    RegisterHotkey("Main Window", "Fullscreen", QKeySequence::FullScreen);
-    RegisterHotkey("Main Window", "Exit Fullscreen", QKeySequence(Qt::Key_Escape),
-                   Qt::ApplicationShortcut);
-    RegisterHotkey("Main Window", "Toggle Speed Limit", QKeySequence("CTRL+Z"),
-                   Qt::ApplicationShortcut);
-    LoadHotkeys();
+    hotkey_registry.RegisterHotkey("Main Window", "Load File", QKeySequence::Open);
+    hotkey_registry.RegisterHotkey("Main Window", "Start Emulation");
+    hotkey_registry.RegisterHotkey("Main Window", "Continue/Pause", QKeySequence(Qt::Key_F4));
+    hotkey_registry.RegisterHotkey("Main Window", "Fullscreen", QKeySequence::FullScreen);
+    hotkey_registry.RegisterHotkey("Main Window", "Exit Fullscreen", QKeySequence(Qt::Key_Escape),
+                                   Qt::ApplicationShortcut);
+    hotkey_registry.RegisterHotkey("Main Window", "Toggle Speed Limit", QKeySequence("CTRL+Z"),
+                                   Qt::ApplicationShortcut);
+    hotkey_registry.LoadHotkeys();
 
-    connect(GetHotkey("Main Window", "Load File", this), &QShortcut::activated, this,
-            &GMainWindow::OnMenuLoadFile);
-    connect(GetHotkey("Main Window", "Start Emulation", this), &QShortcut::activated, this,
-            &GMainWindow::OnStartGame);
-    connect(GetHotkey("Main Window", "Continue/Pause", this), &QShortcut::activated, this, [&] {
-        if (emulation_running) {
-            if (emu_thread->IsRunning()) {
-                OnPauseGame();
-            } else {
-                OnStartGame();
-            }
-        }
-    });
-    connect(GetHotkey("Main Window", "Fullscreen", render_window), &QShortcut::activated,
-            ui.action_Fullscreen, &QAction::trigger);
-    connect(GetHotkey("Main Window", "Fullscreen", render_window), &QShortcut::activatedAmbiguously,
-            ui.action_Fullscreen, &QAction::trigger);
-    connect(GetHotkey("Main Window", "Exit Fullscreen", this), &QShortcut::activated, this, [&] {
-        if (emulation_running) {
-            ui.action_Fullscreen->setChecked(false);
-            ToggleFullscreen();
-        }
-    });
-    connect(GetHotkey("Main Window", "Toggle Speed Limit", this), &QShortcut::activated, this, [&] {
-        Settings::values.toggle_framelimit = !Settings::values.toggle_framelimit;
-        UpdateStatusBar();
-    });
+    connect(hotkey_registry.GetHotkey("Main Window", "Load File", this), &QShortcut::activated,
+            this, &GMainWindow::OnMenuLoadFile);
+    connect(hotkey_registry.GetHotkey("Main Window", "Start Emulation", this),
+            &QShortcut::activated, this, &GMainWindow::OnStartGame);
+    connect(hotkey_registry.GetHotkey("Main Window", "Continue/Pause", this), &QShortcut::activated,
+            this, [&] {
+                if (emulation_running) {
+                    if (emu_thread->IsRunning()) {
+                        OnPauseGame();
+                    } else {
+                        OnStartGame();
+                    }
+                }
+            });
+    connect(hotkey_registry.GetHotkey("Main Window", "Fullscreen", render_window),
+            &QShortcut::activated, ui.action_Fullscreen, &QAction::trigger);
+    connect(hotkey_registry.GetHotkey("Main Window", "Fullscreen", render_window),
+            &QShortcut::activatedAmbiguously, ui.action_Fullscreen, &QAction::trigger);
+    connect(hotkey_registry.GetHotkey("Main Window", "Exit Fullscreen", this),
+            &QShortcut::activated, this, [&] {
+                if (emulation_running) {
+                    ui.action_Fullscreen->setChecked(false);
+                    ToggleFullscreen();
+                }
+            });
+    connect(hotkey_registry.GetHotkey("Main Window", "Toggle Speed Limit", this),
+            &QShortcut::activated, this, [&] {
+                Settings::values.toggle_framelimit = !Settings::values.toggle_framelimit;
+                UpdateStatusBar();
+            });
 }
 
 void GMainWindow::SetDefaultUIGeometry() {
@@ -321,7 +326,8 @@ void GMainWindow::ConnectMenuEvents() {
     connect(ui.action_Show_Status_Bar, &QAction::triggered, statusBar(), &QStatusBar::setVisible);
 
     // Fullscreen
-    ui.action_Fullscreen->setShortcut(GetHotkey("Main Window", "Fullscreen", this)->key());
+    ui.action_Fullscreen->setShortcut(
+        hotkey_registry.GetHotkey("Main Window", "Fullscreen", this)->key());
     connect(ui.action_Fullscreen, &QAction::triggered, this, &GMainWindow::ToggleFullscreen);
 
     // Help
@@ -579,11 +585,11 @@ void GMainWindow::StoreRecentFile(const QString& filename) {
 }
 
 void GMainWindow::UpdateRecentFiles() {
-    unsigned int num_recent_files =
-        std::min(UISettings::values.recent_files.size(), static_cast<int>(max_recent_files_item));
+    const int num_recent_files =
+        std::min(UISettings::values.recent_files.size(), max_recent_files_item);
 
-    for (unsigned int i = 0; i < num_recent_files; i++) {
-        QString text = QString("&%1. %2").arg(i + 1).arg(
+    for (int i = 0; i < num_recent_files; i++) {
+        const QString text = QString("&%1. %2").arg(i + 1).arg(
             QFileInfo(UISettings::values.recent_files[i]).fileName());
         actions_recent_files[i]->setText(text);
         actions_recent_files[i]->setData(UISettings::values.recent_files[i]);
@@ -595,12 +601,8 @@ void GMainWindow::UpdateRecentFiles() {
         actions_recent_files[j]->setVisible(false);
     }
 
-    // Grey out the recent files menu if the list is empty
-    if (num_recent_files == 0) {
-        ui.menu_recent_files->setEnabled(false);
-    } else {
-        ui.menu_recent_files->setEnabled(true);
-    }
+    // Enable the recent files menu if the list isn't empty
+    ui.menu_recent_files->setEnabled(num_recent_files != 0);
 }
 
 void GMainWindow::OnGameListLoadFile(QString game_path) {
@@ -660,9 +662,8 @@ void GMainWindow::OnMenuRecentFile() {
     QAction* action = qobject_cast<QAction*>(sender());
     assert(action);
 
-    QString filename = action->data().toString();
-    QFileInfo file_info(filename);
-    if (file_info.exists()) {
+    const QString filename = action->data().toString();
+    if (QFileInfo::exists(filename)) {
         BootGame(filename);
     } else {
         // Display an error message and remove the file from the list.
@@ -760,7 +761,7 @@ void GMainWindow::ToggleWindowMode() {
 }
 
 void GMainWindow::OnConfigure() {
-    ConfigureDialog configureDialog(this);
+    ConfigureDialog configureDialog(this, hotkey_registry);
     auto old_theme = UISettings::values.theme;
     auto result = configureDialog.exec();
     if (result == QDialog::Accepted) {
@@ -899,7 +900,7 @@ void GMainWindow::closeEvent(QCloseEvent* event) {
     UISettings::values.first_start = false;
 
     game_list->SaveInterfaceLayout();
-    SaveHotkeys();
+    hotkey_registry.SaveHotkeys();
 
     // Shutdown session if the emu thread is active...
     if (emu_thread != nullptr)
@@ -953,15 +954,14 @@ void GMainWindow::UpdateUITheme() {
     QStringList theme_paths(default_theme_paths);
     if (UISettings::values.theme != UISettings::themes[0].second &&
         !UISettings::values.theme.isEmpty()) {
-        QString theme_uri(":" + UISettings::values.theme + "/style.qss");
+        const QString theme_uri(":" + UISettings::values.theme + "/style.qss");
         QFile f(theme_uri);
-        if (!f.exists()) {
-            LOG_ERROR(Frontend, "Unable to set style, stylesheet file not found");
-        } else {
-            f.open(QFile::ReadOnly | QFile::Text);
+        if (f.open(QFile::ReadOnly | QFile::Text)) {
             QTextStream ts(&f);
             qApp->setStyleSheet(ts.readAll());
             GMainWindow::setStyleSheet(ts.readAll());
+        } else {
+            LOG_ERROR(Frontend, "Unable to set style, stylesheet file not found");
         }
         theme_paths.append(QStringList{":/icons/default", ":/icons/" + UISettings::values.theme});
         QIcon::setThemeName(":/icons/" + UISettings::values.theme);

src/yuzu/main.h

@@ -9,6 +9,7 @@
 #include <QTimer>
 #include "core/core.h"
 #include "ui_main.h"
+#include "yuzu/hotkeys.h"
 
 class Config;
 class EmuThread;
@@ -43,7 +44,7 @@ public:
     void filterBarSetChecked(bool state);
     void UpdateUITheme();
     GMainWindow();
-    ~GMainWindow();
+    ~GMainWindow() override;
 
 signals:
 
@@ -172,6 +173,8 @@ private:
     // stores default icon theme search paths for the platform
     QStringList default_theme_paths;
 
+    HotkeyRegistry hotkey_registry;
+
 protected:
     void dropEvent(QDropEvent* event) override;
     void dragEnterEvent(QDragEnterEvent* event) override;