"Merge Tagged PR 1012"

CMakeModules/GenerateSCMRev.cmake

@@ -85,10 +85,12 @@ set(HASH_FILES
     "${VIDEO_CORE}/shader/decode/xmad.cpp"
     "${VIDEO_CORE}/shader/ast.cpp"
     "${VIDEO_CORE}/shader/ast.h"
-    "${VIDEO_CORE}/shader/control_flow.cpp"
-    "${VIDEO_CORE}/shader/control_flow.h"
     "${VIDEO_CORE}/shader/compiler_settings.cpp"
     "${VIDEO_CORE}/shader/compiler_settings.h"
+    "${VIDEO_CORE}/shader/const_buffer_locker.cpp"
+    "${VIDEO_CORE}/shader/const_buffer_locker.h"
+    "${VIDEO_CORE}/shader/control_flow.cpp"
+    "${VIDEO_CORE}/shader/control_flow.h"
     "${VIDEO_CORE}/shader/decode.cpp"
     "${VIDEO_CORE}/shader/expr.cpp"
     "${VIDEO_CORE}/shader/expr.h"

src/common/CMakeLists.txt

@@ -74,10 +74,12 @@ add_custom_command(OUTPUT scm_rev.cpp
       "${VIDEO_CORE}/shader/decode/xmad.cpp"
       "${VIDEO_CORE}/shader/ast.cpp"
       "${VIDEO_CORE}/shader/ast.h"
-      "${VIDEO_CORE}/shader/control_flow.cpp"
-      "${VIDEO_CORE}/shader/control_flow.h"
       "${VIDEO_CORE}/shader/compiler_settings.cpp"
       "${VIDEO_CORE}/shader/compiler_settings.h"
+      "${VIDEO_CORE}/shader/const_buffer_locker.cpp"
+      "${VIDEO_CORE}/shader/const_buffer_locker.h"
+      "${VIDEO_CORE}/shader/control_flow.cpp"
+      "${VIDEO_CORE}/shader/control_flow.h"
       "${VIDEO_CORE}/shader/decode.cpp"
       "${VIDEO_CORE}/shader/expr.cpp"
       "${VIDEO_CORE}/shader/expr.h"

src/common/assert.h

@@ -28,18 +28,14 @@ __declspec(noinline, noreturn)
 }
 
 #define ASSERT(_a_)                                                                                \
-    do                                                                                             \
-        if (!(_a_)) {                                                                              \
-            assert_noinline_call([] { LOG_CRITICAL(Debug, "Assertion Failed!"); });                \
-        }                                                                                          \
-    while (0)
+    if (!(_a_)) {                                                                                  \
+        LOG_CRITICAL(Debug, "Assertion Failed!");                                                  \
+    }
 
 #define ASSERT_MSG(_a_, ...)                                                                       \
-    do                                                                                             \
-        if (!(_a_)) {                                                                              \
-            assert_noinline_call([&] { LOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__); }); \
-        }                                                                                          \
-    while (0)
+    if (!(_a_)) {                                                                                  \
+        LOG_CRITICAL(Debug, "Assertion Failed! " __VA_ARGS__);                                     \
+    }
 
 #define UNREACHABLE() ASSERT_MSG(false, "Unreachable code!")
 #define UNREACHABLE_MSG(...) ASSERT_MSG(false, __VA_ARGS__)

src/common/hash.h

@@ -6,6 +6,8 @@
 
 #include <cstddef>
 #include <cstring>
+#include <utility>
+#include <boost/functional/hash.hpp>
 #include "common/cityhash.h"
 #include "common/common_types.h"
 
@@ -68,4 +70,13 @@ struct HashableStruct {
     }
 };
 
+struct PairHash {
+    template <class T1, class T2>
+    std::size_t operator()(const std::pair<T1, T2>& pair) const noexcept {
+        std::size_t seed = std::hash<T1>()(pair.first);
+        boost::hash_combine(seed, std::hash<T2>()(pair.second));
+        return seed;
+    }
+};
+
 } // namespace Common

src/common/multi_level_queue.h

@@ -304,6 +304,13 @@ public:
         return levels[priority == Depth ? 63 : priority].back();
     }
 
+    void clear() {
+        used_priorities = 0;
+        for (std::size_t i = 0; i < Depth; i++) {
+            levels[i].clear();
+        }
+    }
+
 private:
     using const_list_iterator = typename std::list<T>::const_iterator;
 

src/core/CMakeLists.txt

@@ -108,6 +108,8 @@ add_library(core STATIC
     file_sys/vfs_offset.h
     file_sys/vfs_real.cpp
     file_sys/vfs_real.h
+    file_sys/vfs_ro_layer.cpp
+    file_sys/vfs_ro_layer.h
     file_sys/vfs_static.h
     file_sys/vfs_types.h
     file_sys/vfs_vector.cpp

src/core/core.cpp

@@ -409,6 +409,12 @@ void System::PrepareReschedule() {
     CurrentCpuCore().PrepareReschedule();
 }
 
+void System::PrepareReschedule(const u32 core_index) {
+    if (core_index < GlobalScheduler().CpuCoresCount()) {
+        CpuCore(core_index).PrepareReschedule();
+    }
+}
+
 PerfStatsResults System::GetAndResetPerfStats() {
     return impl->GetAndResetPerfStats();
 }
@@ -449,6 +455,16 @@ const Kernel::Scheduler& System::Scheduler(std::size_t core_index) const {
     return CpuCore(core_index).Scheduler();
 }
 
+/// Gets the global scheduler
+Kernel::GlobalScheduler& System::GlobalScheduler() {
+    return impl->kernel.GlobalScheduler();
+}
+
+/// Gets the global scheduler
+const Kernel::GlobalScheduler& System::GlobalScheduler() const {
+    return impl->kernel.GlobalScheduler();
+}
+
 Kernel::Process* System::CurrentProcess() {
     return impl->kernel.CurrentProcess();
 }

src/core/core.h

@@ -24,6 +24,7 @@ class VfsFilesystem;
 } // namespace FileSys
 
 namespace Kernel {
+class GlobalScheduler;
 class KernelCore;
 class Process;
 class Scheduler;
@@ -184,6 +185,9 @@ public:
     /// Prepare the core emulation for a reschedule
     void PrepareReschedule();
 
+    /// Prepare the core emulation for a reschedule
+    void PrepareReschedule(u32 core_index);
+
     /// Gets and resets core performance statistics
     PerfStatsResults GetAndResetPerfStats();
 
@@ -238,6 +242,12 @@ public:
     /// Gets the scheduler for the CPU core with the specified index
     const Kernel::Scheduler& Scheduler(std::size_t core_index) const;
 
+    /// Gets the global scheduler
+    Kernel::GlobalScheduler& GlobalScheduler();
+
+    /// Gets the global scheduler
+    const Kernel::GlobalScheduler& GlobalScheduler() const;
+
     /// Provides a pointer to the current process
     Kernel::Process* CurrentProcess();
 

src/core/core_cpu.cpp

@@ -52,7 +52,8 @@ bool CpuBarrier::Rendezvous() {
 
 Cpu::Cpu(System& system, ExclusiveMonitor& exclusive_monitor, CpuBarrier& cpu_barrier,
          std::size_t core_index)
-    : cpu_barrier{cpu_barrier}, core_timing{system.CoreTiming()}, core_index{core_index} {
+    : cpu_barrier{cpu_barrier}, global_scheduler{system.GlobalScheduler()},
+      core_timing{system.CoreTiming()}, core_index{core_index} {
 #ifdef ARCHITECTURE_x86_64
     arm_interface = std::make_unique<ARM_Dynarmic>(system, exclusive_monitor, core_index);
 #else
@@ -60,7 +61,7 @@ Cpu::Cpu(System& system, ExclusiveMonitor& exclusive_monitor, CpuBarrier& cpu_ba
     LOG_WARNING(Core, "CPU JIT requested, but Dynarmic not available");
 #endif
 
-    scheduler = std::make_unique<Kernel::Scheduler>(system, *arm_interface);
+    scheduler = std::make_unique<Kernel::Scheduler>(system, *arm_interface, core_index);
 }
 
 Cpu::~Cpu() = default;
@@ -81,21 +82,21 @@ void Cpu::RunLoop(bool tight_loop) {
         return;
     }
 
+    Reschedule();
+
     // If we don't have a currently active thread then don't execute instructions,
     // instead advance to the next event and try to yield to the next thread
     if (Kernel::GetCurrentThread() == nullptr) {
         LOG_TRACE(Core, "Core-{} idling", core_index);
         core_timing.Idle();
-        core_timing.Advance();
-        PrepareReschedule();
     } else {
         if (tight_loop) {
             arm_interface->Run();
         } else {
             arm_interface->Step();
         }
-        core_timing.Advance();
     }
+    core_timing.Advance();
 
     Reschedule();
 }
@@ -106,18 +107,18 @@ void Cpu::SingleStep() {
 
 void Cpu::PrepareReschedule() {
     arm_interface->PrepareReschedule();
-    reschedule_pending = true;
 }
 
 void Cpu::Reschedule() {
-    if (!reschedule_pending) {
-        return;
-    }
-
-    reschedule_pending = false;
     // Lock the global kernel mutex when we manipulate the HLE state
-    std::lock_guard lock{HLE::g_hle_lock};
-    scheduler->Reschedule();
+    std::lock_guard lock(HLE::g_hle_lock);
+
+    global_scheduler.SelectThread(core_index);
+    scheduler->TryDoContextSwitch();
+}
+
+void Cpu::Shutdown() {
+    scheduler->Shutdown();
 }
 
 } // namespace Core

src/core/core_cpu.h

@@ -12,8 +12,9 @@
 #include "common/common_types.h"
 
 namespace Kernel {
+class GlobalScheduler;
 class Scheduler;
-}
+} // namespace Kernel
 
 namespace Core {
 class System;
@@ -83,6 +84,8 @@ public:
         return core_index;
     }
 
+    void Shutdown();
+
     static std::unique_ptr<ExclusiveMonitor> MakeExclusiveMonitor(std::size_t num_cores);
 
 private:
@@ -90,6 +93,7 @@ private:
 
     std::unique_ptr<ARM_Interface> arm_interface;
     CpuBarrier& cpu_barrier;
+    Kernel::GlobalScheduler& global_scheduler;
     std::unique_ptr<Kernel::Scheduler> scheduler;
     Timing::CoreTiming& core_timing;
 

src/core/cpu_core_manager.cpp

@@ -58,6 +58,7 @@ void CpuCoreManager::Shutdown() {
 
     thread_to_cpu.clear();
     for (auto& cpu_core : cores) {
+        cpu_core->Shutdown();
         cpu_core.reset();
     }
 

src/core/file_sys/savedata_factory.cpp

@@ -16,6 +16,7 @@ namespace FileSys {
 constexpr char SAVE_DATA_SIZE_FILENAME[] = ".yuzu_save_size";
 
 namespace {
+
 void PrintSaveDataDescriptorWarnings(SaveDataDescriptor meta) {
     if (meta.type == SaveDataType::SystemSaveData || meta.type == SaveDataType::SaveData) {
         if (meta.zero_1 != 0) {
@@ -52,6 +53,13 @@ void PrintSaveDataDescriptorWarnings(SaveDataDescriptor meta) {
                     meta.user_id[1], meta.user_id[0]);
     }
 }
+
+bool ShouldSaveDataBeAutomaticallyCreated(SaveDataSpaceId space, const SaveDataDescriptor& desc) {
+    return desc.type == SaveDataType::CacheStorage || desc.type == SaveDataType::TemporaryStorage ||
+           (space == SaveDataSpaceId::NandUser && ///< Normal Save Data -- Current Title & User
+            desc.type == SaveDataType::SaveData && desc.title_id == 0 && desc.save_id == 0);
+}
+
 } // Anonymous namespace
 
 std::string SaveDataDescriptor::DebugInfo() const {
@@ -96,6 +104,10 @@ ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space,
 
     auto out = dir->GetDirectoryRelative(save_directory);
 
+    if (out == nullptr && ShouldSaveDataBeAutomaticallyCreated(space, meta)) {
+        return Create(space, meta);
+    }
+
     // Return an error if the save data doesn't actually exist.
     if (out == nullptr) {
         // TODO(Subv): Find out correct error code.

src/core/file_sys/vfs_ro_layer.cpp

@@ -0,0 +1,181 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/file_sys/vfs_ro_layer.h"
+
+namespace FileSys {
+
+ReadOnlyVfsFileLayer::ReadOnlyVfsFileLayer(VirtualFile base) : base(std::move(base)) {}
+
+ReadOnlyVfsFileLayer::~ReadOnlyVfsFileLayer() = default;
+
+std::string ReadOnlyVfsFileLayer::GetName() const {
+    return base->GetName();
+}
+
+std::size_t ReadOnlyVfsFileLayer::GetSize() const {
+    return base->GetSize();
+}
+
+bool ReadOnlyVfsFileLayer::Resize(std::size_t new_size) {
+    return false;
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsFileLayer::GetContainingDirectory() const {
+    // Make containing read-only to prevent escaping the layer by getting containing and then
+    // getting this file again.
+    return std::make_shared<ReadOnlyVfsDirectoryLayer>(base->GetContainingDirectory());
+}
+
+bool ReadOnlyVfsFileLayer::IsWritable() const {
+    return false;
+}
+
+bool ReadOnlyVfsFileLayer::IsReadable() const {
+    return base->IsReadable();
+}
+
+std::size_t ReadOnlyVfsFileLayer::Read(u8* data, std::size_t length, std::size_t offset) const {
+    return base->Read(data, length, offset);
+}
+
+std::size_t ReadOnlyVfsFileLayer::Write(const u8* data, std::size_t length, std::size_t offset) {
+    return 0;
+}
+
+bool ReadOnlyVfsFileLayer::Rename(std::string_view name) {
+    return false;
+}
+
+std::string ReadOnlyVfsFileLayer::GetFullPath() const {
+    return base->GetFullPath();
+}
+
+ReadOnlyVfsDirectoryLayer::ReadOnlyVfsDirectoryLayer(VirtualDir base) : base(std::move(base)) {}
+
+ReadOnlyVfsDirectoryLayer::~ReadOnlyVfsDirectoryLayer() = default;
+
+std::vector<std::shared_ptr<VfsFile>> ReadOnlyVfsDirectoryLayer::GetFiles() const {
+    std::vector<VirtualFile> out;
+    const auto in = base->GetFiles();
+    std::transform(in.begin(), in.end(), std::back_inserter(out),
+                   [](const VirtualFile& i) { return std::make_shared<ReadOnlyVfsFileLayer>(i); });
+    return out;
+}
+
+std::vector<std::shared_ptr<VfsDirectory>> ReadOnlyVfsDirectoryLayer::GetSubdirectories() const {
+    std::vector<VirtualDir> out;
+    const auto in = base->GetSubdirectories();
+    std::transform(in.begin(), in.end(), std::back_inserter(out), [](const VirtualDir& i) {
+        return std::make_shared<ReadOnlyVfsDirectoryLayer>(i);
+    });
+    return out;
+}
+
+std::string ReadOnlyVfsDirectoryLayer::GetName() const {
+    return base->GetName();
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::GetParentDirectory() const {
+    return std::make_shared<ReadOnlyVfsDirectoryLayer>(base->GetParentDirectory());
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectoryLayer::GetFileRelative(std::string_view path) const {
+    return std::make_shared<ReadOnlyVfsFileLayer>(base->GetFileRelative(path));
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectoryLayer::GetFileAbsolute(std::string_view path) const {
+    return std::make_shared<ReadOnlyVfsFileLayer>(base->GetFileAbsolute(path));
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::GetDirectoryRelative(
+    std::string_view path) const {
+    return std::make_shared<ReadOnlyVfsDirectoryLayer>(base->GetDirectoryRelative(path));
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::GetDirectoryAbsolute(
+    std::string_view path) const {
+    return std::make_shared<ReadOnlyVfsDirectoryLayer>(base->GetDirectoryAbsolute(path));
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectoryLayer::GetFile(std::string_view name) const {
+    return std::make_shared<ReadOnlyVfsFileLayer>(base->GetFile(name));
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::GetSubdirectory(
+    std::string_view name) const {
+    return std::make_shared<ReadOnlyVfsDirectoryLayer>(base->GetSubdirectory(name));
+}
+
+bool ReadOnlyVfsDirectoryLayer::IsRoot() const {
+    return base->IsRoot();
+}
+
+std::size_t ReadOnlyVfsDirectoryLayer::GetSize() const {
+    return base->GetSize();
+}
+
+bool ReadOnlyVfsDirectoryLayer::Copy(std::string_view src, std::string_view dest) {
+    return false;
+}
+
+std::string ReadOnlyVfsDirectoryLayer::GetFullPath() const {
+    return base->GetFullPath();
+}
+
+bool ReadOnlyVfsDirectoryLayer::IsWritable() const {
+    return false;
+}
+
+bool ReadOnlyVfsDirectoryLayer::IsReadable() const {
+    return base->IsReadable();
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::CreateSubdirectory(std::string_view name) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectoryLayer::CreateFile(std::string_view name) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectoryLayer::CreateFileAbsolute(std::string_view path) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectoryLayer::CreateFileRelative(std::string_view path) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::CreateDirectoryAbsolute(
+    std::string_view path) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectoryLayer::CreateDirectoryRelative(
+    std::string_view path) {
+    return nullptr;
+}
+
+bool ReadOnlyVfsDirectoryLayer::DeleteSubdirectory(std::string_view name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectoryLayer::DeleteSubdirectoryRecursive(std::string_view name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectoryLayer::CleanSubdirectoryRecursive(std::string_view name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectoryLayer::DeleteFile(std::string_view name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectoryLayer::Rename(std::string_view name) {
+    return false;
+}
+
+} // namespace FileSys

src/core/file_sys/vfs_ro_layer.h

@@ -0,0 +1,73 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include "core/file_sys/vfs.h"
+
+namespace FileSys {
+
+// Class that wraps a VfsFile making it read-only
+class ReadOnlyVfsFileLayer : public VfsFile {
+public:
+    explicit ReadOnlyVfsFileLayer(VirtualFile base);
+    ~ReadOnlyVfsFileLayer() override;
+
+    std::string GetName() const override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
+    std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
+    bool Rename(std::string_view name) override;
+
+    std::string GetFullPath() const override;
+
+private:
+    VirtualFile base;
+};
+
+// Class that wraps a VfsDirectory making it and its children read only.
+class ReadOnlyVfsDirectoryLayer : public ReadOnlyVfsDirectory {
+public:
+    explicit ReadOnlyVfsDirectoryLayer(VirtualDir base);
+    ~ReadOnlyVfsDirectoryLayer() override;
+
+    std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
+    std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
+    std::string GetName() const override;
+    std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
+
+    std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const override;
+    std::shared_ptr<VfsFile> GetFileAbsolute(std::string_view path) const override;
+    std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const override;
+    std::shared_ptr<VfsDirectory> GetDirectoryAbsolute(std::string_view path) const override;
+    std::shared_ptr<VfsFile> GetFile(std::string_view name) const override;
+    std::shared_ptr<VfsDirectory> GetSubdirectory(std::string_view name) const override;
+    bool IsRoot() const override;
+    std::size_t GetSize() const override;
+    bool Copy(std::string_view src, std::string_view dest) override;
+    std::string GetFullPath() const override;
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    std::shared_ptr<VfsDirectory> CreateSubdirectory(std::string_view name) override;
+    std::shared_ptr<VfsFile> CreateFile(std::string_view name) override;
+    std::shared_ptr<VfsFile> CreateFileAbsolute(std::string_view path) override;
+    std::shared_ptr<VfsFile> CreateFileRelative(std::string_view path) override;
+    std::shared_ptr<VfsDirectory> CreateDirectoryAbsolute(std::string_view path) override;
+    std::shared_ptr<VfsDirectory> CreateDirectoryRelative(std::string_view path) override;
+    bool DeleteSubdirectory(std::string_view name) override;
+    bool DeleteSubdirectoryRecursive(std::string_view name) override;
+    bool CleanSubdirectoryRecursive(std::string_view name) override;
+    bool DeleteFile(std::string_view name) override;
+    bool Rename(std::string_view name) override;
+
+private:
+    VirtualDir base;
+};
+
+} // namespace FileSys

src/core/gdbstub/gdbstub.cpp

@@ -202,13 +202,11 @@ void RegisterModule(std::string name, VAddr beg, VAddr end, bool add_elf_ext) {
 }
 
 static Kernel::Thread* FindThreadById(s64 id) {
-    for (u32 core = 0; core < Core::NUM_CPU_CORES; core++) {
-        const auto& threads = Core::System::GetInstance().Scheduler(core).GetThreadList();
-        for (auto& thread : threads) {
-            if (thread->GetThreadID() == static_cast<u64>(id)) {
-                current_core = core;
-                return thread.get();
-            }
+    const auto& threads = Core::System::GetInstance().GlobalScheduler().GetThreadList();
+    for (auto& thread : threads) {
+        if (thread->GetThreadID() == static_cast<u64>(id)) {
+            current_core = thread->GetProcessorID();
+            return thread.get();
         }
     }
     return nullptr;
@@ -647,11 +645,9 @@ static void HandleQuery() {
         SendReply(buffer.c_str());
     } else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {
         std::string val = "m";
-        for (u32 core = 0; core < Core::NUM_CPU_CORES; core++) {
-            const auto& threads = Core::System::GetInstance().Scheduler(core).GetThreadList();
-            for (const auto& thread : threads) {
-                val += fmt::format("{:x},", thread->GetThreadID());
-            }
+        const auto& threads = Core::System::GetInstance().GlobalScheduler().GetThreadList();
+        for (const auto& thread : threads) {
+            val += fmt::format("{:x},", thread->GetThreadID());
         }
         val.pop_back();
         SendReply(val.c_str());
@@ -661,13 +657,11 @@ static void HandleQuery() {
         std::string buffer;
         buffer += "l<?xml version=\"1.0\"?>";
         buffer += "<threads>";
-        for (u32 core = 0; core < Core::NUM_CPU_CORES; core++) {
-            const auto& threads = Core::System::GetInstance().Scheduler(core).GetThreadList();
-            for (const auto& thread : threads) {
-                buffer +=
-                    fmt::format(R"*(<thread id="{:x}" core="{:d}" name="Thread {:x}"></thread>)*",
-                                thread->GetThreadID(), core, thread->GetThreadID());
-            }
+        const auto& threads = Core::System::GetInstance().GlobalScheduler().GetThreadList();
+        for (const auto& thread : threads) {
+            buffer +=
+                fmt::format(R"*(<thread id="{:x}" core="{:d}" name="Thread {:x}"></thread>)*",
+                            thread->GetThreadID(), thread->GetProcessorID(), thread->GetThreadID());
         }
         buffer += "</threads>";
         SendReply(buffer.c_str());

src/core/hle/kernel/address_arbiter.cpp

@@ -22,6 +22,7 @@ namespace Kernel {
 namespace {
 // Wake up num_to_wake (or all) threads in a vector.
 void WakeThreads(const std::vector<SharedPtr<Thread>>& waiting_threads, s32 num_to_wake) {
+    auto& system = Core::System::GetInstance();
     // Only process up to 'target' threads, unless 'target' is <= 0, in which case process
     // them all.
     std::size_t last = waiting_threads.size();
@@ -35,6 +36,7 @@ void WakeThreads(const std::vector<SharedPtr<Thread>>& waiting_threads, s32 num_
         waiting_threads[i]->SetWaitSynchronizationResult(RESULT_SUCCESS);
         waiting_threads[i]->SetArbiterWaitAddress(0);
         waiting_threads[i]->ResumeFromWait();
+        system.PrepareReschedule(waiting_threads[i]->GetProcessorID());
     }
 }
 } // Anonymous namespace
@@ -89,12 +91,20 @@ ResultCode AddressArbiter::ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr a
 
     // Determine the modified value depending on the waiting count.
     s32 updated_value;
-    if (waiting_threads.empty()) {
-        updated_value = value + 1;
-    } else if (num_to_wake <= 0 || waiting_threads.size() <= static_cast<u32>(num_to_wake)) {
-        updated_value = value - 1;
+    if (num_to_wake <= 0) {
+        if (waiting_threads.empty()) {
+            updated_value = value + 1;
+        } else {
+            updated_value = value - 1;
+        }
     } else {
-        updated_value = value;
+        if (waiting_threads.empty()) {
+            updated_value = value + 1;
+        } else if (waiting_threads.size() <= static_cast<u32>(num_to_wake)) {
+            updated_value = value - 1;
+        } else {
+            updated_value = value;
+        }
     }
 
     if (static_cast<s32>(Memory::Read32(address)) != value) {
@@ -169,30 +179,22 @@ ResultCode AddressArbiter::WaitForAddressImpl(VAddr address, s64 timeout) {
 
     current_thread->WakeAfterDelay(timeout);
 
-    system.CpuCore(current_thread->GetProcessorID()).PrepareReschedule();
+    system.PrepareReschedule(current_thread->GetProcessorID());
     return RESULT_TIMEOUT;
 }
 
 std::vector<SharedPtr<Thread>> AddressArbiter::GetThreadsWaitingOnAddress(VAddr address) const {
-    const auto RetrieveWaitingThreads = [this](std::size_t core_index,
-                                               std::vector<SharedPtr<Thread>>& waiting_threads,
-                                               VAddr arb_addr) {
-        const auto& scheduler = system.Scheduler(core_index);
-        const auto& thread_list = scheduler.GetThreadList();
-
-        for (const auto& thread : thread_list) {
-            if (thread->GetArbiterWaitAddress() == arb_addr) {
-                waiting_threads.push_back(thread);
-            }
-        }
-    };
 
     // Retrieve all threads that are waiting for this address.
     std::vector<SharedPtr<Thread>> threads;
-    RetrieveWaitingThreads(0, threads, address);
-    RetrieveWaitingThreads(1, threads, address);
-    RetrieveWaitingThreads(2, threads, address);
-    RetrieveWaitingThreads(3, threads, address);
+    const auto& scheduler = system.GlobalScheduler();
+    const auto& thread_list = scheduler.GetThreadList();
+
+    for (const auto& thread : thread_list) {
+        if (thread->GetArbiterWaitAddress() == address) {
+            threads.push_back(thread);
+        }
+    }
 
     // Sort them by priority, such that the highest priority ones come first.
     std::sort(threads.begin(), threads.end(),

src/core/hle/kernel/kernel.cpp

@@ -12,12 +12,15 @@
 
 #include "core/core.h"
 #include "core/core_timing.h"
+#include "core/core_timing_util.h"
 #include "core/hle/kernel/address_arbiter.h"
 #include "core/hle/kernel/client_port.h"
+#include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
+#include "core/hle/kernel/scheduler.h"
 #include "core/hle/kernel/thread.h"
 #include "core/hle/lock.h"
 #include "core/hle/result.h"
@@ -58,12 +61,8 @@ static void ThreadWakeupCallback(u64 thread_handle, [[maybe_unused]] s64 cycles_
         if (thread->HasWakeupCallback()) {
             resume = thread->InvokeWakeupCallback(ThreadWakeupReason::Timeout, thread, nullptr, 0);
         }
-    }
-
-    if (thread->GetMutexWaitAddress() != 0 || thread->GetCondVarWaitAddress() != 0 ||
-        thread->GetWaitHandle() != 0) {
-        ASSERT(thread->GetStatus() == ThreadStatus::WaitMutex ||
-               thread->GetStatus() == ThreadStatus::WaitCondVar);
+    } else if (thread->GetStatus() == ThreadStatus::WaitMutex ||
+               thread->GetStatus() == ThreadStatus::WaitCondVar) {
         thread->SetMutexWaitAddress(0);
         thread->SetCondVarWaitAddress(0);
         thread->SetWaitHandle(0);
@@ -83,18 +82,23 @@ static void ThreadWakeupCallback(u64 thread_handle, [[maybe_unused]] s64 cycles_
     }
 
     if (resume) {
+        if (thread->GetStatus() == ThreadStatus::WaitCondVar ||
+            thread->GetStatus() == ThreadStatus::WaitArb) {
+            thread->SetWaitSynchronizationResult(RESULT_TIMEOUT);
+        }
         thread->ResumeFromWait();
     }
 }
 
 struct KernelCore::Impl {
-    explicit Impl(Core::System& system) : system{system} {}
+    explicit Impl(Core::System& system) : system{system}, global_scheduler{system} {}
 
     void Initialize(KernelCore& kernel) {
         Shutdown();
 
         InitializeSystemResourceLimit(kernel);
         InitializeThreads();
+        InitializePreemption();
     }
 
     void Shutdown() {
@@ -110,6 +114,9 @@ struct KernelCore::Impl {
 
         thread_wakeup_callback_handle_table.Clear();
         thread_wakeup_event_type = nullptr;
+        preemption_event = nullptr;
+
+        global_scheduler.Shutdown();
 
         named_ports.clear();
     }
@@ -132,6 +139,18 @@ struct KernelCore::Impl {
             system.CoreTiming().RegisterEvent("ThreadWakeupCallback", ThreadWakeupCallback);
     }
 
+    void InitializePreemption() {
+        preemption_event = system.CoreTiming().RegisterEvent(
+            "PreemptionCallback", [this](u64 userdata, s64 cycles_late) {
+                global_scheduler.PreemptThreads();
+                s64 time_interval = Core::Timing::msToCycles(std::chrono::milliseconds(10));
+                system.CoreTiming().ScheduleEvent(time_interval, preemption_event);
+            });
+
+        s64 time_interval = Core::Timing::msToCycles(std::chrono::milliseconds(10));
+        system.CoreTiming().ScheduleEvent(time_interval, preemption_event);
+    }
+
     std::atomic<u32> next_object_id{0};
     std::atomic<u64> next_kernel_process_id{Process::InitialKIPIDMin};
     std::atomic<u64> next_user_process_id{Process::ProcessIDMin};
@@ -140,10 +159,12 @@ struct KernelCore::Impl {
     // Lists all processes that exist in the current session.
     std::vector<SharedPtr<Process>> process_list;
     Process* current_process = nullptr;
+    Kernel::GlobalScheduler global_scheduler;
 
     SharedPtr<ResourceLimit> system_resource_limit;
 
     Core::Timing::EventType* thread_wakeup_event_type = nullptr;
+    Core::Timing::EventType* preemption_event = nullptr;
     // TODO(yuriks): This can be removed if Thread objects are explicitly pooled in the future,
     // allowing us to simply use a pool index or similar.
     Kernel::HandleTable thread_wakeup_callback_handle_table;
@@ -203,6 +224,14 @@ const std::vector<SharedPtr<Process>>& KernelCore::GetProcessList() const {
     return impl->process_list;
 }
 
+Kernel::GlobalScheduler& KernelCore::GlobalScheduler() {
+    return impl->global_scheduler;
+}
+
+const Kernel::GlobalScheduler& KernelCore::GlobalScheduler() const {
+    return impl->global_scheduler;
+}
+
 void KernelCore::AddNamedPort(std::string name, SharedPtr<ClientPort> port) {
     impl->named_ports.emplace(std::move(name), std::move(port));
 }

src/core/hle/kernel/kernel.h

@@ -21,6 +21,7 @@ namespace Kernel {
 
 class AddressArbiter;
 class ClientPort;
+class GlobalScheduler;
 class HandleTable;
 class Process;
 class ResourceLimit;
@@ -75,6 +76,12 @@ public:
     /// Retrieves the list of processes.
     const std::vector<SharedPtr<Process>>& GetProcessList() const;
 
+    /// Gets the sole instance of the global scheduler
+    Kernel::GlobalScheduler& GlobalScheduler();
+
+    /// Gets the sole instance of the global scheduler
+    const Kernel::GlobalScheduler& GlobalScheduler() const;
+
     /// Adds a port to the named port table
     void AddNamedPort(std::string name, SharedPtr<ClientPort> port);
 

src/core/hle/kernel/mutex.cpp

@@ -7,6 +7,7 @@
 
 #include "common/assert.h"
 #include "core/core.h"
+#include "core/core_cpu.h"
 #include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/kernel.h"
@@ -78,7 +79,7 @@ ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
     // thread.
     ASSERT(requesting_thread == current_thread);
 
-    const u32 addr_value = Memory::Read32(address);
+    u32 addr_value = Memory::Read32(address);
 
     // If the mutex isn't being held, just return success.
     if (addr_value != (holding_thread_handle | Mutex::MutexHasWaitersFlag)) {
@@ -89,6 +90,20 @@ ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
         return ERR_INVALID_HANDLE;
     }
 
+    // This a workaround where an unknown bug writes the mutex value to give ownership to a cond var
+    // waiting thread.
+    if (holding_thread->GetStatus() == ThreadStatus::WaitCondVar) {
+        if (holding_thread->GetMutexWaitAddress() == address) {
+            Release(address, holding_thread.get());
+            addr_value = Memory::Read32(address);
+            if (addr_value == 0)
+                return RESULT_SUCCESS;
+            else {
+                holding_thread = handle_table.Get<Thread>(addr_value & Mutex::MutexOwnerMask);
+            }
+        }
+    }
+
     // Wait until the mutex is released
     current_thread->SetMutexWaitAddress(address);
     current_thread->SetWaitHandle(requesting_thread_handle);
@@ -104,14 +119,13 @@ ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle,
     return RESULT_SUCCESS;
 }
 
-ResultCode Mutex::Release(VAddr address) {
+ResultCode Mutex::Release(VAddr address, Thread* holding_thread) {
     // The mutex address must be 4-byte aligned
     if ((address % sizeof(u32)) != 0) {
         return ERR_INVALID_ADDRESS;
     }
 
-    auto* const current_thread = system.CurrentScheduler().GetCurrentThread();
-    auto [thread, num_waiters] = GetHighestPriorityMutexWaitingThread(current_thread, address);
+    auto [thread, num_waiters] = GetHighestPriorityMutexWaitingThread(holding_thread, address);
 
     // There are no more threads waiting for the mutex, release it completely.
     if (thread == nullptr) {
@@ -120,7 +134,7 @@ ResultCode Mutex::Release(VAddr address) {
     }
 
     // Transfer the ownership of the mutex from the previous owner to the new one.
-    TransferMutexOwnership(address, current_thread, thread);
+    TransferMutexOwnership(address, holding_thread, thread);
 
     u32 mutex_value = thread->GetWaitHandle();
 
@@ -139,6 +153,12 @@ ResultCode Mutex::Release(VAddr address) {
     thread->SetCondVarWaitAddress(0);
     thread->SetMutexWaitAddress(0);
     thread->SetWaitHandle(0);
+    thread->SetWaitSynchronizationResult(RESULT_SUCCESS);
+
+    if (thread->GetProcessorID() >= 0)
+        system.CpuCore(thread->GetProcessorID()).PrepareReschedule();
+    if (holding_thread->GetProcessorID() >= 0)
+        system.CpuCore(holding_thread->GetProcessorID()).PrepareReschedule();
 
     return RESULT_SUCCESS;
 }

src/core/hle/kernel/mutex.h

@@ -29,7 +29,7 @@ public:
                           Handle requesting_thread_handle);
 
     /// Releases the mutex at the specified address.
-    ResultCode Release(VAddr address);
+    ResultCode Release(VAddr address, Thread* holding_thread);
 
 private:
     Core::System& system;

src/core/hle/kernel/process.cpp

@@ -213,10 +213,7 @@ void Process::PrepareForTermination() {
         }
     };
 
-    stop_threads(system.Scheduler(0).GetThreadList());
-    stop_threads(system.Scheduler(1).GetThreadList());
-    stop_threads(system.Scheduler(2).GetThreadList());
-    stop_threads(system.Scheduler(3).GetThreadList());
+    stop_threads(system.GlobalScheduler().GetThreadList());
 
     FreeTLSRegion(tls_region_address);
     tls_region_address = 0;

src/core/hle/kernel/scheduler.cpp

@@ -1,8 +1,13 @@
 // Copyright 2018 yuzu emulator team
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
+//
+// SelectThreads, Yield functions originally by TuxSH.
+// licensed under GPLv2 or later under exception provided by the author.
 
 #include <algorithm>
+#include <set>
+#include <unordered_set>
 #include <utility>
 
 #include "common/assert.h"
@@ -17,56 +22,405 @@
 
 namespace Kernel {
 
-std::mutex Scheduler::scheduler_mutex;
+GlobalScheduler::GlobalScheduler(Core::System& system) : system{system} {
+    is_reselection_pending = false;
+}
 
-Scheduler::Scheduler(Core::System& system, Core::ARM_Interface& cpu_core)
-    : cpu_core{cpu_core}, system{system} {}
+void GlobalScheduler::AddThread(SharedPtr<Thread> thread) {
+    thread_list.push_back(std::move(thread));
+}
 
-Scheduler::~Scheduler() {
-    for (auto& thread : thread_list) {
-        thread->Stop();
+void GlobalScheduler::RemoveThread(const Thread* thread) {
+    thread_list.erase(std::remove(thread_list.begin(), thread_list.end(), thread),
+                      thread_list.end());
+}
+
+/*
+ * UnloadThread selects a core and forces it to unload its current thread's context
+ */
+void GlobalScheduler::UnloadThread(s32 core) {
+    Scheduler& sched = system.Scheduler(core);
+    sched.UnloadThread();
+}
+
+/*
+ * SelectThread takes care of selecting the new scheduled thread.
+ * It does it in 3 steps:
+ * - First a thread is selected from the top of the priority queue. If no thread
+ * is obtained then we move to step two, else we are done.
+ * - Second we try to get a suggested thread that's not assigned to any core or
+ * that is not the top thread in that core.
+ * - Third is no suggested thread is found, we do a second pass and pick a running
+ * thread in another core and swap it with its current thread.
+ */
+void GlobalScheduler::SelectThread(u32 core) {
+    const auto update_thread = [](Thread* thread, Scheduler& sched) {
+        if (thread != sched.selected_thread) {
+            if (thread == nullptr) {
+                ++sched.idle_selection_count;
+            }
+            sched.selected_thread = thread;
+        }
+        sched.is_context_switch_pending = sched.selected_thread != sched.current_thread;
+        std::atomic_thread_fence(std::memory_order_seq_cst);
+    };
+    Scheduler& sched = system.Scheduler(core);
+    Thread* current_thread = nullptr;
+    // Step 1: Get top thread in schedule queue.
+    current_thread = scheduled_queue[core].empty() ? nullptr : scheduled_queue[core].front();
+    if (current_thread) {
+        update_thread(current_thread, sched);
+        return;
+    }
+    // Step 2: Try selecting a suggested thread.
+    Thread* winner = nullptr;
+    std::set<s32> sug_cores;
+    for (auto thread : suggested_queue[core]) {
+        s32 this_core = thread->GetProcessorID();
+        Thread* thread_on_core = nullptr;
+        if (this_core >= 0) {
+            thread_on_core = scheduled_queue[this_core].front();
+        }
+        if (this_core < 0 || thread != thread_on_core) {
+            winner = thread;
+            break;
+        }
+        sug_cores.insert(this_core);
+    }
+    // if we got a suggested thread, select it, else do a second pass.
+    if (winner && winner->GetPriority() > 2) {
+        if (winner->IsRunning()) {
+            UnloadThread(winner->GetProcessorID());
+        }
+        TransferToCore(winner->GetPriority(), core, winner);
+        update_thread(winner, sched);
+        return;
+    }
+    // Step 3: Select a suggested thread from another core
+    for (auto& src_core : sug_cores) {
+        auto it = scheduled_queue[src_core].begin();
+        it++;
+        if (it != scheduled_queue[src_core].end()) {
+            Thread* thread_on_core = scheduled_queue[src_core].front();
+            Thread* to_change = *it;
+            if (thread_on_core->IsRunning() || to_change->IsRunning()) {
+                UnloadThread(src_core);
+            }
+            TransferToCore(thread_on_core->GetPriority(), core, thread_on_core);
+            current_thread = thread_on_core;
+            break;
+        }
+    }
+    update_thread(current_thread, sched);
+}
+
+/*
+ * YieldThread takes a thread and moves it to the back of the it's priority list
+ * This operation can be redundant and no scheduling is changed if marked as so.
+ */
+bool GlobalScheduler::YieldThread(Thread* yielding_thread) {
+    // Note: caller should use critical section, etc.
+    const u32 core_id = static_cast<u32>(yielding_thread->GetProcessorID());
+    const u32 priority = yielding_thread->GetPriority();
+
+    // Yield the thread
+    ASSERT_MSG(yielding_thread == scheduled_queue[core_id].front(priority),
+               "Thread yielding without being in front");
+    scheduled_queue[core_id].yield(priority);
+
+    Thread* winner = scheduled_queue[core_id].front(priority);
+    return AskForReselectionOrMarkRedundant(yielding_thread, winner);
+}
+
+/*
+ * YieldThreadAndBalanceLoad takes a thread and moves it to the back of the it's priority list.
+ * Afterwards, tries to pick a suggested thread from the suggested queue that has worse time or
+ * a better priority than the next thread in the core.
+ * This operation can be redundant and no scheduling is changed if marked as so.
+ */
+bool GlobalScheduler::YieldThreadAndBalanceLoad(Thread* yielding_thread) {
+    // Note: caller should check if !thread.IsSchedulerOperationRedundant and use critical section,
+    // etc.
+    const u32 core_id = static_cast<u32>(yielding_thread->GetProcessorID());
+    const u32 priority = yielding_thread->GetPriority();
+
+    // Yield the thread
+    ASSERT_MSG(yielding_thread == scheduled_queue[core_id].front(priority),
+               "Thread yielding without being in front");
+    scheduled_queue[core_id].yield(priority);
+
+    std::array<Thread*, NUM_CPU_CORES> current_threads;
+    for (u32 i = 0; i < NUM_CPU_CORES; i++) {
+        current_threads[i] = scheduled_queue[i].empty() ? nullptr : scheduled_queue[i].front();
+    }
+
+    Thread* next_thread = scheduled_queue[core_id].front(priority);
+    Thread* winner = nullptr;
+    for (auto& thread : suggested_queue[core_id]) {
+        const s32 source_core = thread->GetProcessorID();
+        if (source_core >= 0) {
+            if (current_threads[source_core] != nullptr) {
+                if (thread == current_threads[source_core] ||
+                    current_threads[source_core]->GetPriority() < min_regular_priority) {
+                    continue;
+                }
+            }
+        }
+        if (next_thread->GetLastRunningTicks() >= thread->GetLastRunningTicks() ||
+            next_thread->GetPriority() < thread->GetPriority()) {
+            if (thread->GetPriority() <= priority) {
+                winner = thread;
+                break;
+            }
+        }
+    }
+
+    if (winner != nullptr) {
+        if (winner != yielding_thread) {
+            if (winner->IsRunning()) {
+                UnloadThread(winner->GetProcessorID());
+            }
+            TransferToCore(winner->GetPriority(), core_id, winner);
+        }
+    } else {
+        winner = next_thread;
+    }
+
+    return AskForReselectionOrMarkRedundant(yielding_thread, winner);
+}
+
+/*
+ * YieldThreadAndWaitForLoadBalancing takes a thread and moves it out of the scheduling queue
+ * and into the suggested queue. If no thread can be squeduled afterwards in that core,
+ * a suggested thread is obtained instead.
+ * This operation can be redundant and no scheduling is changed if marked as so.
+ */
+bool GlobalScheduler::YieldThreadAndWaitForLoadBalancing(Thread* yielding_thread) {
+    // Note: caller should check if !thread.IsSchedulerOperationRedundant and use critical section,
+    // etc.
+    Thread* winner = nullptr;
+    const u32 core_id = static_cast<u32>(yielding_thread->GetProcessorID());
+
+    // Remove the thread from its scheduled mlq, put it on the corresponding "suggested" one instead
+    TransferToCore(yielding_thread->GetPriority(), -1, yielding_thread);
+
+    // If the core is idle, perform load balancing, excluding the threads that have just used this
+    // function...
+    if (scheduled_queue[core_id].empty()) {
+        // Here, "current_threads" is calculated after the ""yield"", unlike yield -1
+        std::array<Thread*, NUM_CPU_CORES> current_threads;
+        for (u32 i = 0; i < NUM_CPU_CORES; i++) {
+            current_threads[i] = scheduled_queue[i].empty() ? nullptr : scheduled_queue[i].front();
+        }
+        for (auto& thread : suggested_queue[core_id]) {
+            const s32 source_core = thread->GetProcessorID();
+            if (source_core < 0 || thread == current_threads[source_core]) {
+                continue;
+            }
+            if (current_threads[source_core] == nullptr ||
+                current_threads[source_core]->GetPriority() >= min_regular_priority) {
+                winner = thread;
+            }
+            break;
+        }
+        if (winner != nullptr) {
+            if (winner != yielding_thread) {
+                if (winner->IsRunning()) {
+                    UnloadThread(winner->GetProcessorID());
+                }
+                TransferToCore(winner->GetPriority(), core_id, winner);
+            }
+        } else {
+            winner = yielding_thread;
+        }
+    }
+
+    return AskForReselectionOrMarkRedundant(yielding_thread, winner);
+}
+
+void GlobalScheduler::PreemptThreads() {
+    for (std::size_t core_id = 0; core_id < NUM_CPU_CORES; core_id++) {
+        const u32 priority = preemption_priorities[core_id];
+
+        if (scheduled_queue[core_id].size(priority) > 0) {
+            scheduled_queue[core_id].front(priority)->IncrementYieldCount();
+            scheduled_queue[core_id].yield(priority);
+            if (scheduled_queue[core_id].size(priority) > 1) {
+                scheduled_queue[core_id].front(priority)->IncrementYieldCount();
+            }
+        }
+
+        Thread* current_thread =
+            scheduled_queue[core_id].empty() ? nullptr : scheduled_queue[core_id].front();
+        Thread* winner = nullptr;
+        for (auto& thread : suggested_queue[core_id]) {
+            const s32 source_core = thread->GetProcessorID();
+            if (thread->GetPriority() != priority) {
+                continue;
+            }
+            if (source_core >= 0) {
+                Thread* next_thread = scheduled_queue[source_core].empty()
+                                          ? nullptr
+                                          : scheduled_queue[source_core].front();
+                if (next_thread != nullptr && next_thread->GetPriority() < 2) {
+                    break;
+                }
+                if (next_thread == thread) {
+                    continue;
+                }
+            }
+            if (current_thread != nullptr &&
+                current_thread->GetLastRunningTicks() >= thread->GetLastRunningTicks()) {
+                winner = thread;
+                break;
+            }
+        }
+
+        if (winner != nullptr) {
+            if (winner->IsRunning()) {
+                UnloadThread(winner->GetProcessorID());
+            }
+            TransferToCore(winner->GetPriority(), core_id, winner);
+            current_thread =
+                winner->GetPriority() <= current_thread->GetPriority() ? winner : current_thread;
+        }
+
+        if (current_thread != nullptr && current_thread->GetPriority() > priority) {
+            for (auto& thread : suggested_queue[core_id]) {
+                const s32 source_core = thread->GetProcessorID();
+                if (thread->GetPriority() < priority) {
+                    continue;
+                }
+                if (source_core >= 0) {
+                    Thread* next_thread = scheduled_queue[source_core].empty()
+                                              ? nullptr
+                                              : scheduled_queue[source_core].front();
+                    if (next_thread != nullptr && next_thread->GetPriority() < 2) {
+                        break;
+                    }
+                    if (next_thread == thread) {
+                        continue;
+                    }
+                }
+                if (current_thread != nullptr &&
+                    current_thread->GetLastRunningTicks() >= thread->GetLastRunningTicks()) {
+                    winner = thread;
+                    break;
+                }
+            }
+
+            if (winner != nullptr) {
+                if (winner->IsRunning()) {
+                    UnloadThread(winner->GetProcessorID());
+                }
+                TransferToCore(winner->GetPriority(), core_id, winner);
+                current_thread = winner;
+            }
+        }
+
+        is_reselection_pending.store(true, std::memory_order_release);
     }
 }
 
+void GlobalScheduler::Suggest(u32 priority, u32 core, Thread* thread) {
+    suggested_queue[core].add(thread, priority);
+}
+
+void GlobalScheduler::Unsuggest(u32 priority, u32 core, Thread* thread) {
+    suggested_queue[core].remove(thread, priority);
+}
+
+void GlobalScheduler::Schedule(u32 priority, u32 core, Thread* thread) {
+    ASSERT_MSG(thread->GetProcessorID() == core, "Thread must be assigned to this core.");
+    scheduled_queue[core].add(thread, priority);
+}
+
+void GlobalScheduler::SchedulePrepend(u32 priority, u32 core, Thread* thread) {
+    ASSERT_MSG(thread->GetProcessorID() == core, "Thread must be assigned to this core.");
+    scheduled_queue[core].add(thread, priority, false);
+}
+
+void GlobalScheduler::Reschedule(u32 priority, u32 core, Thread* thread) {
+    scheduled_queue[core].remove(thread, priority);
+    scheduled_queue[core].add(thread, priority);
+}
+
+void GlobalScheduler::Unschedule(u32 priority, u32 core, Thread* thread) {
+    scheduled_queue[core].remove(thread, priority);
+}
+
+void GlobalScheduler::TransferToCore(u32 priority, s32 destination_core, Thread* thread) {
+    const bool schedulable = thread->GetPriority() < THREADPRIO_COUNT;
+    const s32 source_core = thread->GetProcessorID();
+    if (source_core == destination_core || !schedulable) {
+        return;
+    }
+    thread->SetProcessorID(destination_core);
+    if (source_core >= 0) {
+        Unschedule(priority, source_core, thread);
+    }
+    if (destination_core >= 0) {
+        Unsuggest(priority, destination_core, thread);
+        Schedule(priority, destination_core, thread);
+    }
+    if (source_core >= 0) {
+        Suggest(priority, source_core, thread);
+    }
+}
+
+bool GlobalScheduler::AskForReselectionOrMarkRedundant(Thread* current_thread, Thread* winner) {
+    if (current_thread == winner) {
+        current_thread->IncrementYieldCount();
+        return true;
+    } else {
+        is_reselection_pending.store(true, std::memory_order_release);
+        return false;
+    }
+}
+
+void GlobalScheduler::Shutdown() {
+    for (std::size_t core = 0; core < NUM_CPU_CORES; core++) {
+        scheduled_queue[core].clear();
+        suggested_queue[core].clear();
+    }
+    thread_list.clear();
+}
+
+GlobalScheduler::~GlobalScheduler() = default;
+
+Scheduler::Scheduler(Core::System& system, Core::ARM_Interface& cpu_core, u32 core_id)
+    : system(system), cpu_core(cpu_core), core_id(core_id) {}
+
+Scheduler::~Scheduler() = default;
+
 bool Scheduler::HaveReadyThreads() const {
-    std::lock_guard lock{scheduler_mutex};
-    return !ready_queue.empty();
+    return system.GlobalScheduler().HaveReadyThreads(core_id);
 }
 
 Thread* Scheduler::GetCurrentThread() const {
     return current_thread.get();
 }
 
+Thread* Scheduler::GetSelectedThread() const {
+    return selected_thread.get();
+}
+
+void Scheduler::SelectThreads() {
+    system.GlobalScheduler().SelectThread(core_id);
+}
+
 u64 Scheduler::GetLastContextSwitchTicks() const {
     return last_context_switch_time;
 }
 
-Thread* Scheduler::PopNextReadyThread() {
-    Thread* next = nullptr;
-    Thread* thread = GetCurrentThread();
-
-    if (thread && thread->GetStatus() == ThreadStatus::Running) {
-        if (ready_queue.empty()) {
-            return thread;
-        }
-        // We have to do better than the current thread.
-        // This call returns null when that's not possible.
-        next = ready_queue.front();
-        if (next == nullptr || next->GetPriority() >= thread->GetPriority()) {
-            next = thread;
-        }
-    } else {
-        if (ready_queue.empty()) {
-            return nullptr;
-        }
-        next = ready_queue.front();
+void Scheduler::TryDoContextSwitch() {
+    if (is_context_switch_pending) {
+        SwitchContext();
     }
-
-    return next;
 }
 
-void Scheduler::SwitchContext(Thread* new_thread) {
-    Thread* previous_thread = GetCurrentThread();
+void Scheduler::UnloadThread() {
+    Thread* const previous_thread = GetCurrentThread();
     Process* const previous_process = system.Kernel().CurrentProcess();
 
     UpdateLastContextSwitchTime(previous_thread, previous_process);
@@ -80,23 +434,52 @@ void Scheduler::SwitchContext(Thread* new_thread) {
         if (previous_thread->GetStatus() == ThreadStatus::Running) {
             // This is only the case when a reschedule is triggered without the current thread
             // yielding execution (i.e. an event triggered, system core time-sliced, etc)
-            ready_queue.add(previous_thread, previous_thread->GetPriority(), false);
             previous_thread->SetStatus(ThreadStatus::Ready);
         }
+        previous_thread->SetIsRunning(false);
+    }
+    current_thread = nullptr;
+}
+
+void Scheduler::SwitchContext() {
+    Thread* const previous_thread = GetCurrentThread();
+    Thread* const new_thread = GetSelectedThread();
+
+    is_context_switch_pending = false;
+    if (new_thread == previous_thread) {
+        return;
+    }
+
+    Process* const previous_process = system.Kernel().CurrentProcess();
+
+    UpdateLastContextSwitchTime(previous_thread, previous_process);
+
+    // Save context for previous thread
+    if (previous_thread) {
+        cpu_core.SaveContext(previous_thread->GetContext());
+        // Save the TPIDR_EL0 system register in case it was modified.
+        previous_thread->SetTPIDR_EL0(cpu_core.GetTPIDR_EL0());
+
+        if (previous_thread->GetStatus() == ThreadStatus::Running) {
+            // This is only the case when a reschedule is triggered without the current thread
+            // yielding execution (i.e. an event triggered, system core time-sliced, etc)
+            previous_thread->SetStatus(ThreadStatus::Ready);
+        }
+        previous_thread->SetIsRunning(false);
     }
 
     // Load context of new thread
     if (new_thread) {
+        ASSERT_MSG(new_thread->GetProcessorID() == this->core_id,
+                   "Thread must be assigned to this core.");
         ASSERT_MSG(new_thread->GetStatus() == ThreadStatus::Ready,
                    "Thread must be ready to become running.");
 
         // Cancel any outstanding wakeup events for this thread
         new_thread->CancelWakeupTimer();
-
         current_thread = new_thread;
-
-        ready_queue.remove(new_thread, new_thread->GetPriority());
         new_thread->SetStatus(ThreadStatus::Running);
+        new_thread->SetIsRunning(true);
 
         auto* const thread_owner_process = current_thread->GetOwnerProcess();
         if (previous_process != thread_owner_process) {
@@ -130,124 +513,9 @@ void Scheduler::UpdateLastContextSwitchTime(Thread* thread, Process* process) {
     last_context_switch_time = most_recent_switch_ticks;
 }
 
-void Scheduler::Reschedule() {
-    std::lock_guard lock{scheduler_mutex};
-
-    Thread* cur = GetCurrentThread();
-    Thread* next = PopNextReadyThread();
-
-    if (cur && next) {
-        LOG_TRACE(Kernel, "context switch {} -> {}", cur->GetObjectId(), next->GetObjectId());
-    } else if (cur) {
-        LOG_TRACE(Kernel, "context switch {} -> idle", cur->GetObjectId());
-    } else if (next) {
-        LOG_TRACE(Kernel, "context switch idle -> {}", next->GetObjectId());
-    }
-
-    SwitchContext(next);
-}
-
-void Scheduler::AddThread(SharedPtr<Thread> thread) {
-    std::lock_guard lock{scheduler_mutex};
-
-    thread_list.push_back(std::move(thread));
-}
-
-void Scheduler::RemoveThread(Thread* thread) {
-    std::lock_guard lock{scheduler_mutex};
-
-    thread_list.erase(std::remove(thread_list.begin(), thread_list.end(), thread),
-                      thread_list.end());
-}
-
-void Scheduler::ScheduleThread(Thread* thread, u32 priority) {
-    std::lock_guard lock{scheduler_mutex};
-
-    ASSERT(thread->GetStatus() == ThreadStatus::Ready);
-    ready_queue.add(thread, priority);
-}
-
-void Scheduler::UnscheduleThread(Thread* thread, u32 priority) {
-    std::lock_guard lock{scheduler_mutex};
-
-    ASSERT(thread->GetStatus() == ThreadStatus::Ready);
-    ready_queue.remove(thread, priority);
-}
-
-void Scheduler::SetThreadPriority(Thread* thread, u32 priority) {
-    std::lock_guard lock{scheduler_mutex};
-    if (thread->GetPriority() == priority) {
-        return;
-    }
-
-    // If thread was ready, adjust queues
-    if (thread->GetStatus() == ThreadStatus::Ready)
-        ready_queue.adjust(thread, thread->GetPriority(), priority);
-}
-
-Thread* Scheduler::GetNextSuggestedThread(u32 core, u32 maximum_priority) const {
-    std::lock_guard lock{scheduler_mutex};
-
-    const u32 mask = 1U << core;
-    for (auto* thread : ready_queue) {
-        if ((thread->GetAffinityMask() & mask) != 0 && thread->GetPriority() < maximum_priority) {
-            return thread;
-        }
-    }
-    return nullptr;
-}
-
-void Scheduler::YieldWithoutLoadBalancing(Thread* thread) {
-    ASSERT(thread != nullptr);
-    // Avoid yielding if the thread isn't even running.
-    ASSERT(thread->GetStatus() == ThreadStatus::Running);
-
-    // Sanity check that the priority is valid
-    ASSERT(thread->GetPriority() < THREADPRIO_COUNT);
-
-    // Yield this thread -- sleep for zero time and force reschedule to different thread
-    GetCurrentThread()->Sleep(0);
-}
-
-void Scheduler::YieldWithLoadBalancing(Thread* thread) {
-    ASSERT(thread != nullptr);
-    const auto priority = thread->GetPriority();
-    const auto core = static_cast<u32>(thread->GetProcessorID());
-
-    // Avoid yielding if the thread isn't even running.
-    ASSERT(thread->GetStatus() == ThreadStatus::Running);
-
-    // Sanity check that the priority is valid
-    ASSERT(priority < THREADPRIO_COUNT);
-
-    // Sleep for zero time to be able to force reschedule to different thread
-    GetCurrentThread()->Sleep(0);
-
-    Thread* suggested_thread = nullptr;
-
-    // Search through all of the cpu cores (except this one) for a suggested thread.
-    // Take the first non-nullptr one
-    for (unsigned cur_core = 0; cur_core < Core::NUM_CPU_CORES; ++cur_core) {
-        const auto res =
-            system.CpuCore(cur_core).Scheduler().GetNextSuggestedThread(core, priority);
-
-        // If scheduler provides a suggested thread
-        if (res != nullptr) {
-            // And its better than the current suggested thread (or is the first valid one)
-            if (suggested_thread == nullptr ||
-                suggested_thread->GetPriority() > res->GetPriority()) {
-                suggested_thread = res;
-            }
-        }
-    }
-
-    // If a suggested thread was found, queue that for this core
-    if (suggested_thread != nullptr)
-        suggested_thread->ChangeCore(core, suggested_thread->GetAffinityMask());
-}
-
-void Scheduler::YieldAndWaitForLoadBalancing(Thread* thread) {
-    UNIMPLEMENTED_MSG("Wait for load balancing thread yield type is not implemented!");
+void Scheduler::Shutdown() {
+    current_thread = nullptr;
+    selected_thread = nullptr;
 }
 
 } // namespace Kernel

src/core/hle/kernel/scheduler.h

@@ -20,124 +20,172 @@ namespace Kernel {
 
 class Process;
 
-class Scheduler final {
+class GlobalScheduler final {
 public:
-    explicit Scheduler(Core::System& system, Core::ARM_Interface& cpu_core);
-    ~Scheduler();
-
-    /// Returns whether there are any threads that are ready to run.
-    bool HaveReadyThreads() const;
-
-    /// Reschedules to the next available thread (call after current thread is suspended)
-    void Reschedule();
-
-    /// Gets the current running thread
-    Thread* GetCurrentThread() const;
-
-    /// Gets the timestamp for the last context switch in ticks.
-    u64 GetLastContextSwitchTicks() const;
+    static constexpr u32 NUM_CPU_CORES = 4;
 
+    explicit GlobalScheduler(Core::System& system);
+    ~GlobalScheduler();
     /// Adds a new thread to the scheduler
     void AddThread(SharedPtr<Thread> thread);
 
     /// Removes a thread from the scheduler
-    void RemoveThread(Thread* thread);
-
-    /// Schedules a thread that has become "ready"
-    void ScheduleThread(Thread* thread, u32 priority);
-
-    /// Unschedules a thread that was already scheduled
-    void UnscheduleThread(Thread* thread, u32 priority);
-
-    /// Sets the priority of a thread in the scheduler
-    void SetThreadPriority(Thread* thread, u32 priority);
-
-    /// Gets the next suggested thread for load balancing
-    Thread* GetNextSuggestedThread(u32 core, u32 minimum_priority) const;
-
-    /**
-     * YieldWithoutLoadBalancing -- analogous to normal yield on a system
-     * Moves the thread to the end of the ready queue for its priority, and then reschedules the
-     * system to the new head of the queue.
-     *
-     * Example (Single Core -- but can be extrapolated to multi):
-     * ready_queue[prio=0]: ThreadA, ThreadB, ThreadC (->exec order->)
-     * Currently Running: ThreadR
-     *
-     * ThreadR calls YieldWithoutLoadBalancing
-     *
-     * ThreadR is moved to the end of ready_queue[prio=0]:
-     * ready_queue[prio=0]: ThreadA, ThreadB, ThreadC, ThreadR (->exec order->)
-     * Currently Running: Nothing
-     *
-     * System is rescheduled (ThreadA is popped off of queue):
-     * ready_queue[prio=0]: ThreadB, ThreadC, ThreadR (->exec order->)
-     * Currently Running: ThreadA
-     *
-     * If the queue is empty at time of call, no yielding occurs. This does not cross between cores
-     * or priorities at all.
-     */
-    void YieldWithoutLoadBalancing(Thread* thread);
-
-    /**
-     * YieldWithLoadBalancing -- yield but with better selection of the new running thread
-     * Moves the current thread to the end of the ready queue for its priority, then selects a
-     * 'suggested thread' (a thread on a different core that could run on this core) from the
-     * scheduler, changes its core, and reschedules the current core to that thread.
-     *
-     * Example (Dual Core -- can be extrapolated to Quad Core, this is just normal yield if it were
-     * single core):
-     * ready_queue[core=0][prio=0]: ThreadA, ThreadB (affinities not pictured as irrelevant
-     * ready_queue[core=1][prio=0]: ThreadC[affinity=both], ThreadD[affinity=core1only]
-     * Currently Running: ThreadQ on Core 0 || ThreadP on Core 1
-     *
-     * ThreadQ calls YieldWithLoadBalancing
-     *
-     * ThreadQ is moved to the end of ready_queue[core=0][prio=0]:
-     * ready_queue[core=0][prio=0]: ThreadA, ThreadB
-     * ready_queue[core=1][prio=0]: ThreadC[affinity=both], ThreadD[affinity=core1only]
-     * Currently Running: ThreadQ on Core 0 || ThreadP on Core 1
-     *
-     * A list of suggested threads for each core is compiled
-     * Suggested Threads: {ThreadC on Core 1}
-     * If this were quad core (as the switch is), there could be between 0 and 3 threads in this
-     * list. If there are more than one, the thread is selected by highest prio.
-     *
-     * ThreadC is core changed to Core 0:
-     * ready_queue[core=0][prio=0]: ThreadC, ThreadA, ThreadB, ThreadQ
-     * ready_queue[core=1][prio=0]: ThreadD
-     * Currently Running: None on Core 0 || ThreadP on Core 1
-     *
-     * System is rescheduled (ThreadC is popped off of queue):
-     * ready_queue[core=0][prio=0]: ThreadA, ThreadB, ThreadQ
-     * ready_queue[core=1][prio=0]: ThreadD
-     * Currently Running: ThreadC on Core 0 || ThreadP on Core 1
-     *
-     * If no suggested threads can be found this will behave just as normal yield. If there are
-     * multiple candidates for the suggested thread on a core, the highest prio is taken.
-     */
-    void YieldWithLoadBalancing(Thread* thread);
-
-    /// Currently unknown -- asserts as unimplemented on call
-    void YieldAndWaitForLoadBalancing(Thread* thread);
+    void RemoveThread(const Thread* thread);
 
     /// Returns a list of all threads managed by the scheduler
     const std::vector<SharedPtr<Thread>>& GetThreadList() const {
         return thread_list;
     }
 
-private:
-    /**
-     * Pops and returns the next thread from the thread queue
-     * @return A pointer to the next ready thread
-     */
-    Thread* PopNextReadyThread();
+    // Add a thread to the suggested queue of a cpu core. Suggested threads may be
+    // picked if no thread is scheduled to run on the core.
+    void Suggest(u32 priority, u32 core, Thread* thread);
 
+    // Remove a thread to the suggested queue of a cpu core. Suggested threads may be
+    // picked if no thread is scheduled to run on the core.
+    void Unsuggest(u32 priority, u32 core, Thread* thread);
+
+    // Add a thread to the scheduling queue of a cpu core. The thread is added at the
+    // back the queue in its priority level
+    void Schedule(u32 priority, u32 core, Thread* thread);
+
+    // Add a thread to the scheduling queue of a cpu core. The thread is added at the
+    // front the queue in its priority level
+    void SchedulePrepend(u32 priority, u32 core, Thread* thread);
+
+    // Reschedule an already scheduled thread based on a new priority
+    void Reschedule(u32 priority, u32 core, Thread* thread);
+
+    // Unschedule a thread.
+    void Unschedule(u32 priority, u32 core, Thread* thread);
+
+    // Transfers a thread into an specific core. If the destination_core is -1
+    // it will be unscheduled from its source code and added into its suggested
+    // queue.
+    void TransferToCore(u32 priority, s32 destination_core, Thread* thread);
+
+    /*
+     * UnloadThread selects a core and forces it to unload its current thread's context
+     */
+    void UnloadThread(s32 core);
+
+    /*
+     * SelectThread takes care of selecting the new scheduled thread.
+     * It does it in 3 steps:
+     * - First a thread is selected from the top of the priority queue. If no thread
+     * is obtained then we move to step two, else we are done.
+     * - Second we try to get a suggested thread that's not assigned to any core or
+     * that is not the top thread in that core.
+     * - Third is no suggested thread is found, we do a second pass and pick a running
+     * thread in another core and swap it with its current thread.
+     */
+    void SelectThread(u32 core);
+
+    bool HaveReadyThreads(u32 core_id) const {
+        return !scheduled_queue[core_id].empty();
+    }
+
+    /*
+     * YieldThread takes a thread and moves it to the back of the it's priority list
+     * This operation can be redundant and no scheduling is changed if marked as so.
+     */
+    bool YieldThread(Thread* thread);
+
+    /*
+     * YieldThreadAndBalanceLoad takes a thread and moves it to the back of the it's priority list.
+     * Afterwards, tries to pick a suggested thread from the suggested queue that has worse time or
+     * a better priority than the next thread in the core.
+     * This operation can be redundant and no scheduling is changed if marked as so.
+     */
+    bool YieldThreadAndBalanceLoad(Thread* thread);
+
+    /*
+     * YieldThreadAndWaitForLoadBalancing takes a thread and moves it out of the scheduling queue
+     * and into the suggested queue. If no thread can be squeduled afterwards in that core,
+     * a suggested thread is obtained instead.
+     * This operation can be redundant and no scheduling is changed if marked as so.
+     */
+    bool YieldThreadAndWaitForLoadBalancing(Thread* thread);
+
+    /*
+     * PreemptThreads this operation rotates the scheduling queues of threads at
+     * a preemption priority and then does some core rebalancing. Preemption priorities
+     * can be found in the array 'preemption_priorities'. This operation happens
+     * every 10ms.
+     */
+    void PreemptThreads();
+
+    u32 CpuCoresCount() const {
+        return NUM_CPU_CORES;
+    }
+
+    void SetReselectionPending() {
+        is_reselection_pending.store(true, std::memory_order_release);
+    }
+
+    bool IsReselectionPending() const {
+        return is_reselection_pending.load(std::memory_order_acquire);
+    }
+
+    void Shutdown();
+
+private:
+    bool AskForReselectionOrMarkRedundant(Thread* current_thread, Thread* winner);
+
+    static constexpr u32 min_regular_priority = 2;
+    std::array<Common::MultiLevelQueue<Thread*, THREADPRIO_COUNT>, NUM_CPU_CORES> scheduled_queue;
+    std::array<Common::MultiLevelQueue<Thread*, THREADPRIO_COUNT>, NUM_CPU_CORES> suggested_queue;
+    std::atomic<bool> is_reselection_pending;
+
+    // `preemption_priorities` are the priority levels at which the global scheduler
+    // preempts threads every 10 ms. They are ordered from Core 0 to Core 3
+    std::array<u32, NUM_CPU_CORES> preemption_priorities = {59, 59, 59, 62};
+
+    /// Lists all thread ids that aren't deleted/etc.
+    std::vector<SharedPtr<Thread>> thread_list;
+    Core::System& system;
+};
+
+class Scheduler final {
+public:
+    explicit Scheduler(Core::System& system, Core::ARM_Interface& cpu_core, u32 core_id);
+    ~Scheduler();
+
+    /// Returns whether there are any threads that are ready to run.
+    bool HaveReadyThreads() const;
+
+    /// Reschedules to the next available thread (call after current thread is suspended)
+    void TryDoContextSwitch();
+
+    /// Unloads currently running thread
+    void UnloadThread();
+
+    /// Select the threads in top of the scheduling multilist.
+    void SelectThreads();
+
+    /// Gets the current running thread
+    Thread* GetCurrentThread() const;
+
+    /// Gets the currently selected thread from the top of the multilevel queue
+    Thread* GetSelectedThread() const;
+
+    /// Gets the timestamp for the last context switch in ticks.
+    u64 GetLastContextSwitchTicks() const;
+
+    bool ContextSwitchPending() const {
+        return is_context_switch_pending;
+    }
+
+    /// Shutdowns the scheduler.
+    void Shutdown();
+
+private:
+    friend class GlobalScheduler;
     /**
      * Switches the CPU's active thread context to that of the specified thread
      * @param new_thread The thread to switch to
      */
-    void SwitchContext(Thread* new_thread);
+    void SwitchContext();
 
     /**
      * Called on every context switch to update the internal timestamp
@@ -152,19 +200,16 @@ private:
      */
     void UpdateLastContextSwitchTime(Thread* thread, Process* process);
 
-    /// Lists all thread ids that aren't deleted/etc.
-    std::vector<SharedPtr<Thread>> thread_list;
-
-    /// Lists only ready thread ids.
-    Common::MultiLevelQueue<Thread*, THREADPRIO_LOWEST + 1> ready_queue;
-
     SharedPtr<Thread> current_thread = nullptr;
-
-    Core::ARM_Interface& cpu_core;
-    u64 last_context_switch_time = 0;
+    SharedPtr<Thread> selected_thread = nullptr;
 
     Core::System& system;
-    static std::mutex scheduler_mutex;
+    Core::ARM_Interface& cpu_core;
+    u64 last_context_switch_time = 0;
+    u64 idle_selection_count = 0;
+    const u32 core_id;
+
+    bool is_context_switch_pending = false;
 };
 
 } // namespace Kernel

src/core/hle/kernel/svc.cpp

@@ -516,7 +516,7 @@ static ResultCode WaitSynchronization(Core::System& system, Handle* index, VAddr
     thread->WakeAfterDelay(nano_seconds);
     thread->SetWakeupCallback(DefaultThreadWakeupCallback);
 
-    system.CpuCore(thread->GetProcessorID()).PrepareReschedule();
+    system.PrepareReschedule(thread->GetProcessorID());
 
     return RESULT_TIMEOUT;
 }
@@ -534,6 +534,7 @@ static ResultCode CancelSynchronization(Core::System& system, Handle thread_hand
     }
 
     thread->CancelWait();
+    system.PrepareReschedule(thread->GetProcessorID());
     return RESULT_SUCCESS;
 }
 
@@ -577,7 +578,8 @@ static ResultCode ArbitrateUnlock(Core::System& system, VAddr mutex_addr) {
     }
 
     auto* const current_process = system.Kernel().CurrentProcess();
-    return current_process->GetMutex().Release(mutex_addr);
+    return current_process->GetMutex().Release(mutex_addr,
+                                               system.CurrentScheduler().GetCurrentThread());
 }
 
 enum class BreakType : u32 {
@@ -1066,6 +1068,8 @@ static ResultCode SetThreadActivity(Core::System& system, Handle handle, u32 act
     }
 
     thread->SetActivity(static_cast<ThreadActivity>(activity));
+
+    system.PrepareReschedule(thread->GetProcessorID());
     return RESULT_SUCCESS;
 }
 
@@ -1147,7 +1151,7 @@ static ResultCode SetThreadPriority(Core::System& system, Handle handle, u32 pri
 
     thread->SetPriority(priority);
 
-    system.CpuCore(thread->GetProcessorID()).PrepareReschedule();
+    system.PrepareReschedule(thread->GetProcessorID());
     return RESULT_SUCCESS;
 }
 
@@ -1503,7 +1507,7 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
     thread->SetName(
         fmt::format("thread[entry_point={:X}, handle={:X}]", entry_point, *new_thread_handle));
 
-    system.CpuCore(thread->GetProcessorID()).PrepareReschedule();
+    system.PrepareReschedule(thread->GetProcessorID());
 
     return RESULT_SUCCESS;
 }
@@ -1525,7 +1529,7 @@ static ResultCode StartThread(Core::System& system, Handle thread_handle) {
     thread->ResumeFromWait();
 
     if (thread->GetStatus() == ThreadStatus::Ready) {
-        system.CpuCore(thread->GetProcessorID()).PrepareReschedule();
+        system.PrepareReschedule(thread->GetProcessorID());
     }
 
     return RESULT_SUCCESS;
@@ -1537,7 +1541,7 @@ static void ExitThread(Core::System& system) {
 
     auto* const current_thread = system.CurrentScheduler().GetCurrentThread();
     current_thread->Stop();
-    system.CurrentScheduler().RemoveThread(current_thread);
+    system.GlobalScheduler().RemoveThread(current_thread);
     system.PrepareReschedule();
 }
 
@@ -1553,17 +1557,18 @@ static void SleepThread(Core::System& system, s64 nanoseconds) {
 
     auto& scheduler = system.CurrentScheduler();
     auto* const current_thread = scheduler.GetCurrentThread();
+    bool is_redundant = false;
 
     if (nanoseconds <= 0) {
         switch (static_cast<SleepType>(nanoseconds)) {
         case SleepType::YieldWithoutLoadBalancing:
-            scheduler.YieldWithoutLoadBalancing(current_thread);
+            is_redundant = current_thread->YieldSimple();
             break;
         case SleepType::YieldWithLoadBalancing:
-            scheduler.YieldWithLoadBalancing(current_thread);
+            is_redundant = current_thread->YieldAndBalanceLoad();
             break;
         case SleepType::YieldAndWaitForLoadBalancing:
-            scheduler.YieldAndWaitForLoadBalancing(current_thread);
+            is_redundant = current_thread->YieldAndWaitForLoadBalancing();
             break;
         default:
             UNREACHABLE_MSG("Unimplemented sleep yield type '{:016X}'!", nanoseconds);
@@ -1572,10 +1577,13 @@ static void SleepThread(Core::System& system, s64 nanoseconds) {
         current_thread->Sleep(nanoseconds);
     }
 
-    // Reschedule all CPU cores
-    for (std::size_t i = 0; i < Core::NUM_CPU_CORES; ++i) {
-        system.CpuCore(i).PrepareReschedule();
+    if (is_redundant) {
+        // If it's redundant, the core is pretty much idle. Some games keep idling
+        // a core while it's doing nothing, we advance timing to avoid costly continuous
+        // calls.
+        system.CoreTiming().AddTicks(2000);
     }
+    system.PrepareReschedule(current_thread->GetProcessorID());
 }
 
 /// Wait process wide key atomic
@@ -1601,17 +1609,21 @@ static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr mutex_add
         return ERR_INVALID_ADDRESS;
     }
 
+    ASSERT(condition_variable_addr == Common::AlignDown(condition_variable_addr, 4));
+
     auto* const current_process = system.Kernel().CurrentProcess();
     const auto& handle_table = current_process->GetHandleTable();
     SharedPtr<Thread> thread = handle_table.Get<Thread>(thread_handle);
     ASSERT(thread);
 
-    const auto release_result = current_process->GetMutex().Release(mutex_addr);
+    SharedPtr<Thread> current_thread = system.CurrentScheduler().GetCurrentThread();
+
+    const auto release_result =
+        current_process->GetMutex().Release(mutex_addr, current_thread.get());
     if (release_result.IsError()) {
         return release_result;
     }
 
-    SharedPtr<Thread> current_thread = system.CurrentScheduler().GetCurrentThread();
     current_thread->SetCondVarWaitAddress(condition_variable_addr);
     current_thread->SetMutexWaitAddress(mutex_addr);
     current_thread->SetWaitHandle(thread_handle);
@@ -1622,7 +1634,7 @@ static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr mutex_add
 
     // Note: Deliberately don't attempt to inherit the lock owner's priority.
 
-    system.CpuCore(current_thread->GetProcessorID()).PrepareReschedule();
+    system.PrepareReschedule(current_thread->GetProcessorID());
     return RESULT_SUCCESS;
 }
 
@@ -1632,24 +1644,19 @@ static ResultCode SignalProcessWideKey(Core::System& system, VAddr condition_var
     LOG_TRACE(Kernel_SVC, "called, condition_variable_addr=0x{:X}, target=0x{:08X}",
               condition_variable_addr, target);
 
-    const auto RetrieveWaitingThreads = [&system](std::size_t core_index,
-                                                  std::vector<SharedPtr<Thread>>& waiting_threads,
-                                                  VAddr condvar_addr) {
-        const auto& scheduler = system.Scheduler(core_index);
-        const auto& thread_list = scheduler.GetThreadList();
-
-        for (const auto& thread : thread_list) {
-            if (thread->GetCondVarWaitAddress() == condvar_addr)
-                waiting_threads.push_back(thread);
-        }
-    };
+    ASSERT(condition_variable_addr == Common::AlignDown(condition_variable_addr, 4));
 
     // Retrieve a list of all threads that are waiting for this condition variable.
     std::vector<SharedPtr<Thread>> waiting_threads;
-    RetrieveWaitingThreads(0, waiting_threads, condition_variable_addr);
-    RetrieveWaitingThreads(1, waiting_threads, condition_variable_addr);
-    RetrieveWaitingThreads(2, waiting_threads, condition_variable_addr);
-    RetrieveWaitingThreads(3, waiting_threads, condition_variable_addr);
+    const auto& scheduler = system.GlobalScheduler();
+    const auto& thread_list = scheduler.GetThreadList();
+
+    for (const auto& thread : thread_list) {
+        if (thread->GetCondVarWaitAddress() == condition_variable_addr) {
+            waiting_threads.push_back(thread);
+        }
+    }
+
     // Sort them by priority, such that the highest priority ones come first.
     std::sort(waiting_threads.begin(), waiting_threads.end(),
               [](const SharedPtr<Thread>& lhs, const SharedPtr<Thread>& rhs) {
@@ -1679,18 +1686,20 @@ static ResultCode SignalProcessWideKey(Core::System& system, VAddr condition_var
 
         // Atomically read the value of the mutex.
         u32 mutex_val = 0;
+        u32 update_val = 0;
+        const VAddr mutex_address = thread->GetMutexWaitAddress();
         do {
-            monitor.SetExclusive(current_core, thread->GetMutexWaitAddress());
+            monitor.SetExclusive(current_core, mutex_address);
 
             // If the mutex is not yet acquired, acquire it.
-            mutex_val = Memory::Read32(thread->GetMutexWaitAddress());
+            mutex_val = Memory::Read32(mutex_address);
 
             if (mutex_val != 0) {
-                monitor.ClearExclusive();
-                break;
+                update_val = mutex_val | Mutex::MutexHasWaitersFlag;
+            } else {
+                update_val = thread->GetWaitHandle();
             }
-        } while (!monitor.ExclusiveWrite32(current_core, thread->GetMutexWaitAddress(),
-                                           thread->GetWaitHandle()));
+        } while (!monitor.ExclusiveWrite32(current_core, mutex_address, update_val));
         if (mutex_val == 0) {
             // We were able to acquire the mutex, resume this thread.
             ASSERT(thread->GetStatus() == ThreadStatus::WaitCondVar);
@@ -1704,20 +1713,9 @@ static ResultCode SignalProcessWideKey(Core::System& system, VAddr condition_var
             thread->SetLockOwner(nullptr);
             thread->SetMutexWaitAddress(0);
             thread->SetWaitHandle(0);
-            system.CpuCore(thread->GetProcessorID()).PrepareReschedule();
+            thread->SetWaitSynchronizationResult(RESULT_SUCCESS);
+            system.PrepareReschedule(thread->GetProcessorID());
         } else {
-            // Atomically signal that the mutex now has a waiting thread.
-            do {
-                monitor.SetExclusive(current_core, thread->GetMutexWaitAddress());
-
-                // Ensure that the mutex value is still what we expect.
-                u32 value = Memory::Read32(thread->GetMutexWaitAddress());
-                // TODO(Subv): When this happens, the kernel just clears the exclusive state and
-                // retries the initial read for this thread.
-                ASSERT_MSG(mutex_val == value, "Unhandled synchronization primitive case");
-            } while (!monitor.ExclusiveWrite32(current_core, thread->GetMutexWaitAddress(),
-                                               mutex_val | Mutex::MutexHasWaitersFlag));
-
             // The mutex is already owned by some other thread, make this thread wait on it.
             const Handle owner_handle = static_cast<Handle>(mutex_val & Mutex::MutexOwnerMask);
             const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
@@ -1728,6 +1726,7 @@ static ResultCode SignalProcessWideKey(Core::System& system, VAddr condition_var
             thread->SetStatus(ThreadStatus::WaitMutex);
 
             owner->AddMutexWaiter(thread);
+            system.PrepareReschedule(thread->GetProcessorID());
         }
     }
 
@@ -1754,7 +1753,12 @@ static ResultCode WaitForAddress(Core::System& system, VAddr address, u32 type,
 
     const auto arbitration_type = static_cast<AddressArbiter::ArbitrationType>(type);
     auto& address_arbiter = system.Kernel().CurrentProcess()->GetAddressArbiter();
-    return address_arbiter.WaitForAddress(address, arbitration_type, value, timeout);
+    const ResultCode result =
+        address_arbiter.WaitForAddress(address, arbitration_type, value, timeout);
+    if (result == RESULT_SUCCESS) {
+        system.PrepareReschedule();
+    }
+    return result;
 }
 
 // Signals to an address (via Address Arbiter)
@@ -2040,7 +2044,10 @@ static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle,
         return ERR_INVALID_HANDLE;
     }
 
+    system.PrepareReschedule(thread->GetProcessorID());
     thread->ChangeCore(core, affinity_mask);
+    system.PrepareReschedule(thread->GetProcessorID());
+
     return RESULT_SUCCESS;
 }
 
@@ -2151,6 +2158,7 @@ static ResultCode SignalEvent(Core::System& system, Handle handle) {
     }
 
     writable_event->Signal();
+    system.PrepareReschedule();
     return RESULT_SUCCESS;
 }
 

src/core/hle/kernel/thread.cpp

@@ -45,15 +45,7 @@ void Thread::Stop() {
                                                              callback_handle);
     kernel.ThreadWakeupCallbackHandleTable().Close(callback_handle);
     callback_handle = 0;
-
-    // Clean up thread from ready queue
-    // This is only needed when the thread is terminated forcefully (SVC TerminateProcess)
-    if (status == ThreadStatus::Ready || status == ThreadStatus::Paused) {
-        scheduler->UnscheduleThread(this, current_priority);
-    }
-
-    status = ThreadStatus::Dead;
-
+    SetStatus(ThreadStatus::Dead);
     WakeupAllWaitingThreads();
 
     // Clean up any dangling references in objects that this thread was waiting for
@@ -132,17 +124,16 @@ void Thread::ResumeFromWait() {
     wakeup_callback = nullptr;
 
     if (activity == ThreadActivity::Paused) {
-        status = ThreadStatus::Paused;
+        SetStatus(ThreadStatus::Paused);
         return;
     }
 
-    status = ThreadStatus::Ready;
-
-    ChangeScheduler();
+    SetStatus(ThreadStatus::Ready);
 }
 
 void Thread::CancelWait() {
     ASSERT(GetStatus() == ThreadStatus::WaitSynch);
+    ClearWaitObjects();
     SetWaitSynchronizationResult(ERR_SYNCHRONIZATION_CANCELED);
     ResumeFromWait();
 }
@@ -205,9 +196,9 @@ ResultVal<SharedPtr<Thread>> Thread::Create(KernelCore& kernel, std::string name
     thread->name = std::move(name);
     thread->callback_handle = kernel.ThreadWakeupCallbackHandleTable().Create(thread).Unwrap();
     thread->owner_process = &owner_process;
+    auto& scheduler = kernel.GlobalScheduler();
+    scheduler.AddThread(thread);
     thread->tls_address = thread->owner_process->CreateTLSRegion();
-    thread->scheduler = &system.Scheduler(processor_id);
-    thread->scheduler->AddThread(thread);
 
     thread->owner_process->RegisterThread(thread.get());
 
@@ -250,6 +241,22 @@ void Thread::SetStatus(ThreadStatus new_status) {
         return;
     }
 
+    switch (new_status) {
+    case ThreadStatus::Ready:
+    case ThreadStatus::Running:
+        SetSchedulingStatus(ThreadSchedStatus::Runnable);
+        break;
+    case ThreadStatus::Dormant:
+        SetSchedulingStatus(ThreadSchedStatus::None);
+        break;
+    case ThreadStatus::Dead:
+        SetSchedulingStatus(ThreadSchedStatus::Exited);
+        break;
+    default:
+        SetSchedulingStatus(ThreadSchedStatus::Paused);
+        break;
+    }
+
     if (status == ThreadStatus::Running) {
         last_running_ticks = Core::System::GetInstance().CoreTiming().GetTicks();
     }
@@ -311,8 +318,7 @@ void Thread::UpdatePriority() {
         return;
     }
 
-    scheduler->SetThreadPriority(this, new_priority);
-    current_priority = new_priority;
+    SetCurrentPriority(new_priority);
 
     if (!lock_owner) {
         return;
@@ -328,47 +334,7 @@ void Thread::UpdatePriority() {
 }
 
 void Thread::ChangeCore(u32 core, u64 mask) {
-    ideal_core = core;
-    affinity_mask = mask;
-    ChangeScheduler();
-}
-
-void Thread::ChangeScheduler() {
-    if (status != ThreadStatus::Ready) {
-        return;
-    }
-
-    auto& system = Core::System::GetInstance();
-    std::optional<s32> new_processor_id{GetNextProcessorId(affinity_mask)};
-
-    if (!new_processor_id) {
-        new_processor_id = processor_id;
-    }
-    if (ideal_core != -1 && system.Scheduler(ideal_core).GetCurrentThread() == nullptr) {
-        new_processor_id = ideal_core;
-    }
-
-    ASSERT(*new_processor_id < 4);
-
-    // Add thread to new core's scheduler
-    auto& next_scheduler = system.Scheduler(*new_processor_id);
-
-    if (*new_processor_id != processor_id) {
-        // Remove thread from previous core's scheduler
-        scheduler->RemoveThread(this);
-        next_scheduler.AddThread(this);
-    }
-
-    processor_id = *new_processor_id;
-
-    // If the thread was ready, unschedule from the previous core and schedule on the new core
-    scheduler->UnscheduleThread(this, current_priority);
-    next_scheduler.ScheduleThread(this, current_priority);
-
-    // Change thread's scheduler
-    scheduler = &next_scheduler;
-
-    system.CpuCore(processor_id).PrepareReschedule();
+    SetCoreAndAffinityMask(core, mask);
 }
 
 bool Thread::AllWaitObjectsReady() const {
@@ -388,10 +354,8 @@ void Thread::SetActivity(ThreadActivity value) {
 
     if (value == ThreadActivity::Paused) {
         // Set status if not waiting
-        if (status == ThreadStatus::Ready) {
-            status = ThreadStatus::Paused;
-        } else if (status == ThreadStatus::Running) {
-            status = ThreadStatus::Paused;
+        if (status == ThreadStatus::Ready || status == ThreadStatus::Running) {
+            SetStatus(ThreadStatus::Paused);
             Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule();
         }
     } else if (status == ThreadStatus::Paused) {
@@ -408,6 +372,170 @@ void Thread::Sleep(s64 nanoseconds) {
     WakeAfterDelay(nanoseconds);
 }
 
+bool Thread::YieldSimple() {
+    auto& scheduler = kernel.GlobalScheduler();
+    return scheduler.YieldThread(this);
+}
+
+bool Thread::YieldAndBalanceLoad() {
+    auto& scheduler = kernel.GlobalScheduler();
+    return scheduler.YieldThreadAndBalanceLoad(this);
+}
+
+bool Thread::YieldAndWaitForLoadBalancing() {
+    auto& scheduler = kernel.GlobalScheduler();
+    return scheduler.YieldThreadAndWaitForLoadBalancing(this);
+}
+
+void Thread::SetSchedulingStatus(ThreadSchedStatus new_status) {
+    const u32 old_flags = scheduling_state;
+    scheduling_state = (scheduling_state & static_cast<u32>(ThreadSchedMasks::HighMask)) |
+                       static_cast<u32>(new_status);
+    AdjustSchedulingOnStatus(old_flags);
+}
+
+void Thread::SetCurrentPriority(u32 new_priority) {
+    const u32 old_priority = std::exchange(current_priority, new_priority);
+    AdjustSchedulingOnPriority(old_priority);
+}
+
+ResultCode Thread::SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask) {
+    const auto HighestSetCore = [](u64 mask, u32 max_cores) {
+        for (s32 core = max_cores - 1; core >= 0; core--) {
+            if (((mask >> core) & 1) != 0) {
+                return core;
+            }
+        }
+        return -1;
+    };
+
+    const bool use_override = affinity_override_count != 0;
+    if (new_core == THREADPROCESSORID_DONT_UPDATE) {
+        new_core = use_override ? ideal_core_override : ideal_core;
+        if ((new_affinity_mask & (1ULL << new_core)) == 0) {
+            return ERR_INVALID_COMBINATION;
+        }
+    }
+    if (use_override) {
+        ideal_core_override = new_core;
+        affinity_mask_override = new_affinity_mask;
+    } else {
+        const u64 old_affinity_mask = std::exchange(affinity_mask, new_affinity_mask);
+        ideal_core = new_core;
+        if (old_affinity_mask != new_affinity_mask) {
+            const s32 old_core = processor_id;
+            if (processor_id >= 0 && ((affinity_mask >> processor_id) & 1) == 0) {
+                if (ideal_core < 0) {
+                    processor_id = HighestSetCore(affinity_mask, GlobalScheduler::NUM_CPU_CORES);
+                } else {
+                    processor_id = ideal_core;
+                }
+            }
+            AdjustSchedulingOnAffinity(old_affinity_mask, old_core);
+        }
+    }
+    return RESULT_SUCCESS;
+}
+
+void Thread::AdjustSchedulingOnStatus(u32 old_flags) {
+    if (old_flags == scheduling_state) {
+        return;
+    }
+
+    auto& scheduler = kernel.GlobalScheduler();
+    if (static_cast<ThreadSchedStatus>(old_flags & static_cast<u32>(ThreadSchedMasks::LowMask)) ==
+        ThreadSchedStatus::Runnable) {
+        // In this case the thread was running, now it's pausing/exitting
+        if (processor_id >= 0) {
+            scheduler.Unschedule(current_priority, processor_id, this);
+        }
+
+        for (s32 core = 0; core < GlobalScheduler::NUM_CPU_CORES; core++) {
+            if (core != processor_id && ((affinity_mask >> core) & 1) != 0) {
+                scheduler.Unsuggest(current_priority, static_cast<u32>(core), this);
+            }
+        }
+    } else if (GetSchedulingStatus() == ThreadSchedStatus::Runnable) {
+        // The thread is now set to running from being stopped
+        if (processor_id >= 0) {
+            scheduler.Schedule(current_priority, processor_id, this);
+        }
+
+        for (s32 core = 0; core < GlobalScheduler::NUM_CPU_CORES; core++) {
+            if (core != processor_id && ((affinity_mask >> core) & 1) != 0) {
+                scheduler.Suggest(current_priority, static_cast<u32>(core), this);
+            }
+        }
+    }
+
+    scheduler.SetReselectionPending();
+}
+
+void Thread::AdjustSchedulingOnPriority(u32 old_priority) {
+    if (GetSchedulingStatus() != ThreadSchedStatus::Runnable) {
+        return;
+    }
+    auto& scheduler = Core::System::GetInstance().GlobalScheduler();
+    if (processor_id >= 0) {
+        scheduler.Unschedule(old_priority, processor_id, this);
+    }
+
+    for (u32 core = 0; core < GlobalScheduler::NUM_CPU_CORES; core++) {
+        if (core != processor_id && ((affinity_mask >> core) & 1) != 0) {
+            scheduler.Unsuggest(old_priority, core, this);
+        }
+    }
+
+    // Add thread to the new priority queues.
+    Thread* current_thread = GetCurrentThread();
+
+    if (processor_id >= 0) {
+        if (current_thread == this) {
+            scheduler.SchedulePrepend(current_priority, processor_id, this);
+        } else {
+            scheduler.Schedule(current_priority, processor_id, this);
+        }
+    }
+
+    for (u32 core = 0; core < GlobalScheduler::NUM_CPU_CORES; core++) {
+        if (core != processor_id && ((affinity_mask >> core) & 1) != 0) {
+            scheduler.Suggest(current_priority, core, this);
+        }
+    }
+
+    scheduler.SetReselectionPending();
+}
+
+void Thread::AdjustSchedulingOnAffinity(u64 old_affinity_mask, s32 old_core) {
+    auto& scheduler = Core::System::GetInstance().GlobalScheduler();
+    if (GetSchedulingStatus() != ThreadSchedStatus::Runnable ||
+        current_priority >= THREADPRIO_COUNT) {
+        return;
+    }
+
+    for (u32 core = 0; core < GlobalScheduler::NUM_CPU_CORES; core++) {
+        if (((old_affinity_mask >> core) & 1) != 0) {
+            if (core == old_core) {
+                scheduler.Unschedule(current_priority, core, this);
+            } else {
+                scheduler.Unsuggest(current_priority, core, this);
+            }
+        }
+    }
+
+    for (u32 core = 0; core < GlobalScheduler::NUM_CPU_CORES; core++) {
+        if (((affinity_mask >> core) & 1) != 0) {
+            if (core == processor_id) {
+                scheduler.Schedule(current_priority, core, this);
+            } else {
+                scheduler.Suggest(current_priority, core, this);
+            }
+        }
+    }
+
+    scheduler.SetReselectionPending();
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
 /**

src/core/hle/kernel/thread.h

@@ -75,6 +75,26 @@ enum class ThreadActivity : u32 {
     Paused = 1,
 };
 
+enum class ThreadSchedStatus : u32 {
+    None = 0,
+    Paused = 1,
+    Runnable = 2,
+    Exited = 3,
+};
+
+enum class ThreadSchedFlags : u32 {
+    ProcessPauseFlag = 1 << 4,
+    ThreadPauseFlag = 1 << 5,
+    ProcessDebugPauseFlag = 1 << 6,
+    KernelInitPauseFlag = 1 << 8,
+};
+
+enum class ThreadSchedMasks : u32 {
+    LowMask = 0x000f,
+    HighMask = 0xfff0,
+    ForcePauseMask = 0x0070,
+};
+
 class Thread final : public WaitObject {
 public:
     using MutexWaitingThreads = std::vector<SharedPtr<Thread>>;
@@ -278,6 +298,10 @@ public:
         return processor_id;
     }
 
+    void SetProcessorID(s32 new_core) {
+        processor_id = new_core;
+    }
+
     Process* GetOwnerProcess() {
         return owner_process;
     }
@@ -295,6 +319,9 @@ public:
     }
 
     void ClearWaitObjects() {
+        for (const auto& waiting_object : wait_objects) {
+            waiting_object->RemoveWaitingThread(this);
+        }
         wait_objects.clear();
     }
 
@@ -383,11 +410,47 @@ public:
     /// Sleeps this thread for the given amount of nanoseconds.
     void Sleep(s64 nanoseconds);
 
+    /// Yields this thread without rebalancing loads.
+    bool YieldSimple();
+
+    /// Yields this thread and does a load rebalancing.
+    bool YieldAndBalanceLoad();
+
+    /// Yields this thread and if the core is left idle, loads are rebalanced
+    bool YieldAndWaitForLoadBalancing();
+
+    void IncrementYieldCount() {
+        yield_count++;
+    }
+
+    u64 GetYieldCount() const {
+        return yield_count;
+    }
+
+    ThreadSchedStatus GetSchedulingStatus() const {
+        return static_cast<ThreadSchedStatus>(scheduling_state &
+                                              static_cast<u32>(ThreadSchedMasks::LowMask));
+    }
+
+    bool IsRunning() const {
+        return is_running;
+    }
+
+    void SetIsRunning(bool value) {
+        is_running = value;
+    }
+
 private:
     explicit Thread(KernelCore& kernel);
     ~Thread() override;
 
-    void ChangeScheduler();
+    void SetSchedulingStatus(ThreadSchedStatus new_status);
+    void SetCurrentPriority(u32 new_priority);
+    ResultCode SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask);
+
+    void AdjustSchedulingOnStatus(u32 old_flags);
+    void AdjustSchedulingOnPriority(u32 old_priority);
+    void AdjustSchedulingOnAffinity(u64 old_affinity_mask, s32 old_core);
 
     Core::ARM_Interface::ThreadContext context{};
 
@@ -409,6 +472,8 @@ private:
 
     u64 total_cpu_time_ticks = 0; ///< Total CPU running ticks.
     u64 last_running_ticks = 0;   ///< CPU tick when thread was last running
+    u64 yield_count = 0;          ///< Number of redundant yields carried by this thread.
+                                  ///< a redundant yield is one where no scheduling is changed
 
     s32 processor_id = 0;
 
@@ -453,6 +518,13 @@ private:
 
     ThreadActivity activity = ThreadActivity::Normal;
 
+    s32 ideal_core_override = -1;
+    u64 affinity_mask_override = 0x1;
+    u32 affinity_override_count = 0;
+
+    u32 scheduling_state = 0;
+    bool is_running = false;
+
     std::string name;
 };
 

src/core/hle/kernel/transfer_memory.cpp

@@ -23,6 +23,8 @@ SharedPtr<TransferMemory> TransferMemory::Create(KernelCore& kernel, VAddr base_
     transfer_memory->owner_permissions = permissions;
     transfer_memory->owner_process = kernel.CurrentProcess();
 
+    transfer_memory->MapMemory(base_address, size, permissions);
+
     return transfer_memory;
 }
 

src/core/hle/kernel/wait_object.cpp

@@ -6,6 +6,9 @@
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/logging/log.h"
+#include "core/core.h"
+#include "core/core_cpu.h"
+#include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/object.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/thread.h"
@@ -48,17 +51,8 @@ SharedPtr<Thread> WaitObject::GetHighestPriorityReadyThread() const {
         if (ShouldWait(thread.get()))
             continue;
 
-        // A thread is ready to run if it's either in ThreadStatus::WaitSynch
-        // and the rest of the objects it is waiting on are ready.
-        bool ready_to_run = true;
-        if (thread_status == ThreadStatus::WaitSynch) {
-            ready_to_run = thread->AllWaitObjectsReady();
-        }
-
-        if (ready_to_run) {
-            candidate = thread.get();
-            candidate_priority = thread->GetPriority();
-        }
+        candidate = thread.get();
+        candidate_priority = thread->GetPriority();
     }
 
     return candidate;
@@ -82,9 +76,6 @@ void WaitObject::WakeupWaitingThread(SharedPtr<Thread> thread) {
 
     const std::size_t index = thread->GetWaitObjectIndex(this);
 
-    for (const auto& object : thread->GetWaitObjects()) {
-        object->RemoveWaitingThread(thread.get());
-    }
     thread->ClearWaitObjects();
 
     thread->CancelWakeupTimer();
@@ -95,6 +86,7 @@ void WaitObject::WakeupWaitingThread(SharedPtr<Thread> thread) {
     }
     if (resume) {
         thread->ResumeFromWait();
+        Core::System::GetInstance().PrepareReschedule(thread->GetProcessorID());
     }
 }
 

src/core/hle/service/am/am.cpp

@@ -847,17 +847,16 @@ private:
     void PopInteractiveOutData(Kernel::HLERequestContext& ctx) {
         LOG_DEBUG(Service_AM, "called");
 
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-
         const auto storage = applet->GetBroker().PopInteractiveDataToGame();
         if (storage == nullptr) {
             LOG_ERROR(Service_AM,
                       "storage is a nullptr. There is no data in the current interactive channel");
-
+            IPC::ResponseBuilder rb{ctx, 2};
             rb.Push(ERR_NO_DATA_IN_CHANNEL);
             return;
         }
 
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(RESULT_SUCCESS);
         rb.PushIpcInterface<IStorage>(std::move(*storage));
     }

src/core/hle/service/am/applets/applets.cpp

@@ -27,9 +27,9 @@ AppletDataBroker::AppletDataBroker(Kernel::KernelCore& kernel) {
     state_changed_event = Kernel::WritableEvent::CreateEventPair(
         kernel, Kernel::ResetType::Manual, "ILibraryAppletAccessor:StateChangedEvent");
     pop_out_data_event = Kernel::WritableEvent::CreateEventPair(
-        kernel, Kernel::ResetType::Manual, "ILibraryAppletAccessor:PopDataOutEvent");
+        kernel, Kernel::ResetType::Automatic, "ILibraryAppletAccessor:PopDataOutEvent");
     pop_interactive_out_data_event = Kernel::WritableEvent::CreateEventPair(
-        kernel, Kernel::ResetType::Manual, "ILibraryAppletAccessor:PopInteractiveDataOutEvent");
+        kernel, Kernel::ResetType::Automatic, "ILibraryAppletAccessor:PopInteractiveDataOutEvent");
 }
 
 AppletDataBroker::~AppletDataBroker() = default;

src/core/hle/service/am/applets/software_keyboard.cpp

@@ -91,6 +91,7 @@ void SoftwareKeyboard::ExecuteInteractive() {
 
     if (status == INTERACTIVE_STATUS_OK) {
         complete = true;
+        broker.SignalStateChanged();
     } else {
         std::array<char16_t, SWKBD_OUTPUT_INTERACTIVE_BUFFER_SIZE / 2 - 2> string;
         std::memcpy(string.data(), data.data() + 4, string.size() * 2);

src/core/hle/service/filesystem/filesystem.cpp

@@ -40,7 +40,10 @@ static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base,
     if (dir_name.empty() || dir_name == "." || dir_name == "/" || dir_name == "\\")
         return base;
 
-    return base->GetDirectoryRelative(dir_name);
+    const auto res = base->GetDirectoryRelative(dir_name);
+    if (res == nullptr)
+        return base->CreateDirectoryRelative(dir_name);
+    return res;
 }
 
 VfsDirectoryServiceWrapper::VfsDirectoryServiceWrapper(FileSys::VirtualDir backing_)
@@ -722,8 +725,7 @@ void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool ove
 void InstallInterfaces(Core::System& system) {
     std::make_shared<FSP_LDR>()->InstallAsService(system.ServiceManager());
     std::make_shared<FSP_PR>()->InstallAsService(system.ServiceManager());
-    std::make_shared<FSP_SRV>(system.GetFileSystemController(), system.GetReporter())
-        ->InstallAsService(system.ServiceManager());
+    std::make_shared<FSP_SRV>(system)->InstallAsService(system.ServiceManager());
 }
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp_srv.cpp

@@ -14,17 +14,22 @@
 #include "common/hex_util.h"
 #include "common/logging/log.h"
 #include "common/string_util.h"
+#include "core/file_sys/content_archive.h"
 #include "core/file_sys/directory.h"
 #include "core/file_sys/errors.h"
 #include "core/file_sys/mode.h"
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/patch_manager.h"
+#include "core/file_sys/registered_cache.h"
+#include "core/file_sys/romfs.h"
 #include "core/file_sys/romfs_factory.h"
 #include "core/file_sys/savedata_factory.h"
 #include "core/file_sys/system_archive/system_archive.h"
 #include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_ro_layer.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/process.h"
+#include "core/hle/kernel/readable_event.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/filesystem/fsp_srv.h"
 #include "core/reporter.h"
@@ -54,6 +59,12 @@ enum class FileSystemType : u8 {
     ApplicationPackage = 7,
 };
 
+enum class SaveDataOpenMode {
+    Normal,
+    ReadOnly,
+    System,
+};
+
 class IStorage final : public ServiceFramework<IStorage> {
 public:
     explicit IStorage(FileSys::VirtualFile backend_)
@@ -503,14 +514,17 @@ private:
 
 class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> {
 public:
-    explicit ISaveDataInfoReader(FileSys::SaveDataSpaceId space, FileSystemController& fsc)
+    explicit ISaveDataInfoReader(FileSystemController& fsc,
+                                 std::vector<FileSys::SaveDataSpaceId> spaces)
         : ServiceFramework("ISaveDataInfoReader"), fsc(fsc) {
         static const FunctionInfo functions[] = {
             {0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"},
         };
         RegisterHandlers(functions);
 
-        FindAllSaves(space);
+        for (const auto& space : spaces) {
+            FindAllSaves(space);
+        }
     }
 
     void ReadSaveDataInfo(Kernel::HLERequestContext& ctx) {
@@ -650,8 +664,31 @@ private:
     u64 next_entry_index = 0;
 };
 
-FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
-    : ServiceFramework("fsp-srv"), fsc(fsc), reporter(reporter) {
+class IEventNotifier final : public ServiceFramework<IEventNotifier> {
+public:
+    explicit IEventNotifier(Kernel::SharedPtr<Kernel::ReadableEvent> event)
+        : ServiceFramework{"IEventNotifier"}, event(std::move(event)) {
+        static const FunctionInfo functions[] = {
+            {0, &IEventNotifier::GetEventHandle, "GetEventHandle"},
+        };
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetEventHandle(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_FS, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(event);
+    }
+
+    Kernel::SharedPtr<Kernel::ReadableEvent> event;
+};
+
+FSP_SRV::FSP_SRV(Core::System& system)
+    : ServiceFramework("fsp-srv"), system(system), fsc(system.GetFileSystemController()) {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, nullptr, "OpenFileSystem"},
@@ -660,15 +697,15 @@ FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
         {7, &FSP_SRV::OpenFileSystemWithPatch, "OpenFileSystemWithPatch"},
         {8, nullptr, "OpenFileSystemWithId"},
         {9, nullptr, "OpenDataFileSystemByApplicationId"},
-        {11, nullptr, "OpenBisFileSystem"},
-        {12, nullptr, "OpenBisStorage"},
-        {13, nullptr, "InvalidateBisCache"},
+        {11, &FSP_SRV::OpenBisFileSystem, "OpenBisFileSystem"},
+        {12, &FSP_SRV::OpenBisStorage, "OpenBisStorage"},
+        {13, &FSP_SRV::InvalidateBisCache, "InvalidateBisCache"},
         {17, nullptr, "OpenHostFileSystem"},
         {18, &FSP_SRV::OpenSdCardFileSystem, "OpenSdCardFileSystem"},
         {19, nullptr, "FormatSdCardFileSystem"},
         {21, nullptr, "DeleteSaveDataFileSystem"},
         {22, &FSP_SRV::CreateSaveDataFileSystem, "CreateSaveDataFileSystem"},
-        {23, nullptr, "CreateSaveDataFileSystemBySystemSaveDataId"},
+        {23, &FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId, "CreateSaveDataFileSystemBySystemSaveDataId"},
         {24, nullptr, "RegisterSaveDataFileSystemAtomicDeletion"},
         {25, nullptr, "DeleteSaveDataFileSystemBySaveDataSpaceId"},
         {26, nullptr, "FormatSdCardDryRun"},
@@ -681,12 +718,12 @@ FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
         {34, nullptr, "GetCacheStorageSize"},
         {35, nullptr, "CreateSaveDataFileSystemByHashSalt"},
         {51, &FSP_SRV::OpenSaveDataFileSystem, "OpenSaveDataFileSystem"},
-        {52, nullptr, "OpenSaveDataFileSystemBySystemSaveDataId"},
+        {52, &FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId, "OpenSaveDataFileSystemBySystemSaveDataId"},
         {53, &FSP_SRV::OpenReadOnlySaveDataFileSystem, "OpenReadOnlySaveDataFileSystem"},
         {57, nullptr, "ReadSaveDataFileSystemExtraDataBySaveDataSpaceId"},
         {58, nullptr, "ReadSaveDataFileSystemExtraData"},
         {59, nullptr, "WriteSaveDataFileSystemExtraData"},
-        {60, nullptr, "OpenSaveDataInfoReader"},
+        {60, &FSP_SRV::OpenSaveDataInfoReader, "OpenSaveDataInfoReader"},
         {61, &FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId, "OpenSaveDataInfoReaderBySaveDataSpaceId"},
         {62, nullptr, "OpenCacheStorageList"},
         {64, nullptr, "OpenSaveDataInternalStorageFileSystem"},
@@ -699,8 +736,8 @@ FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
         {82, nullptr, "OpenSaveDataTransferManagerVersion2"},
         {83, nullptr, "OpenSaveDataTransferProhibiterForCloudBackUp"},
         {84, nullptr, "ListApplicationAccessibleSaveDataOwnerId"},
-        {100, nullptr, "OpenImageDirectoryFileSystem"},
-        {110, nullptr, "OpenContentStorageFileSystem"},
+        {100, &FSP_SRV::OpenImageDirectoryFileSystem, "OpenImageDirectoryFileSystem"},
+        {110, &FSP_SRV::OpenContentStorageFileSystem, "OpenContentStorageFileSystem"},
         {120, nullptr, "OpenCloudBackupWorkStorageFileSystem"},
         {130, nullptr, "OpenCustomStorageFileSystem"},
         {200, &FSP_SRV::OpenDataStorageByCurrentProcess, "OpenDataStorageByCurrentProcess"},
@@ -710,8 +747,8 @@ FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
         {204, nullptr, "OpenDataFileSystemByProgramIndex"},
         {205, nullptr, "OpenDataStorageByProgramIndex"},
         {400, nullptr, "OpenDeviceOperator"},
-        {500, nullptr, "OpenSdCardDetectionEventNotifier"},
-        {501, nullptr, "OpenGameCardDetectionEventNotifier"},
+        {500, &FSP_SRV::OpenSdCardDetectionEventNotifier, "OpenSdCardDetectionEventNotifier"},
+        {501, &FSP_SRV::OpenGameCardDetectionEventNotifier, "OpenGameCardDetectionEventNotifier"},
         {510, nullptr, "OpenSystemDataUpdateEventNotifier"},
         {511, nullptr, "NotifySystemDataUpdateEvent"},
         {520, nullptr, "SimulateGameCardDetectionEvent"},
@@ -733,7 +770,7 @@ FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
         {615, nullptr, "QuerySaveDataInternalStorageTotalSize"},
         {616, nullptr, "GetSaveDataCommitId"},
         {617, nullptr, "UnregisterExternalKey"},
-        {620, nullptr, "SetSdCardEncryptionSeed"},
+        {620, &FSP_SRV::SetSdCardEncryptionSeed, "SetSdCardEncryptionSeed"},
         {630, nullptr, "SetSdCardAccessibility"},
         {631, nullptr, "IsSdCardAccessible"},
         {640, nullptr, "IsSignedSystemPartitionOnSdCardValid"},
@@ -762,6 +799,12 @@ FSP_SRV::FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter)
     };
     // clang-format on
     RegisterHandlers(functions);
+
+    auto& kernel{system.Kernel()};
+    sd_card_detection_event = Kernel::WritableEvent::CreateEventPair(
+        kernel, Kernel::ResetType::Automatic, "fsp-srv:SdCardDetectionEvent");
+    game_card_detection_event = Kernel::WritableEvent::CreateEventPair(
+        kernel, Kernel::ResetType::Automatic, "fsp-srv:GameCardDetectionEvent");
 }
 
 FSP_SRV::~FSP_SRV() = default;
@@ -781,11 +824,134 @@ void FSP_SRV::OpenFileSystemWithPatch(Kernel::HLERequestContext& ctx) {
 
     const auto type = rp.PopRaw<FileSystemType>();
     const auto title_id = rp.PopRaw<u64>();
-    LOG_WARNING(Service_FS, "(STUBBED) called with type={}, title_id={:016X}",
-                static_cast<u8>(type), title_id);
+    LOG_DEBUG(Service_FS, "called with type={}, title_id={:016X}", static_cast<u8>(type), title_id);
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 0};
-    rb.Push(ResultCode(-1));
+    const auto& prov{system.GetContentProvider()};
+
+    FileSys::PatchManager pm{title_id};
+    FileSys::ContentRecordType cr_type;
+
+    switch (type) {
+    case FileSystemType::ApplicationPackage:
+    case FileSystemType::Logo:
+        cr_type = FileSys::ContentRecordType::Program;
+        break;
+    case FileSystemType::ContentControl:
+        cr_type = FileSys::ContentRecordType::Control;
+        break;
+    case FileSystemType::ContentManual:
+        cr_type = FileSys::ContentRecordType::HtmlDocument;
+        break;
+    case FileSystemType::ContentMeta:
+        cr_type = FileSys::ContentRecordType::Meta;
+        break;
+    case FileSystemType::ContentData:
+        cr_type = FileSys::ContentRecordType::Data;
+        break;
+    default:
+        LOG_WARNING(Service_FS, "called with invalid filesystem type!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(FileSys::ERROR_INVALID_ARGUMENT);
+        return;
+    }
+
+    const auto& nca{prov.GetEntry(title_id, cr_type)};
+    if (nca == nullptr) {
+        LOG_WARNING(Service_FS, "NCA requested doesn't exist in content provider!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(FileSys::ERROR_INVALID_ARGUMENT);
+        return;
+    }
+
+    FileSys::VirtualDir dir;
+
+    if (type == FileSystemType::ApplicationPackage) {
+        dir = nca->GetExeFS();
+        if (dir != nullptr)
+            dir = pm.PatchExeFS(dir);
+    } else if (type == FileSystemType::Logo) {
+        dir = nca->GetSubdirectories()[1];
+    } else if (type == FileSystemType::ContentControl || type == FileSystemType::ContentManual ||
+               type == FileSystemType::ContentData) {
+        if (nca->GetRomFS() != nullptr) {
+            const auto romfs = pm.PatchRomFS(nca->GetRomFS(), nca->GetBaseIVFCOffset(), cr_type);
+            if (romfs != nullptr)
+                dir = FileSys::ExtractRomFS(romfs);
+        }
+    } else {
+        dir = nca->GetSubdirectories()[0];
+    }
+
+    if (dir == nullptr) {
+        LOG_WARNING(Service_FS, "couldn't get requested NCA section!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(FileSys::ERROR_INVALID_ARGUMENT);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface(std::make_shared<IFileSystem>(
+        dir, SizeGetter::FromStorageId(fsc, FileSys::StorageId::Host)));
+}
+
+void FSP_SRV::OpenBisFileSystem(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto partition = rp.PopRaw<FileSys::BisPartitionId>();
+
+    LOG_DEBUG(Service_FS, "called with partition_id={:08X}", static_cast<u32>(partition));
+
+    auto dir = fsc.OpenBISPartition(partition);
+
+    if (dir.Failed()) {
+        LOG_ERROR(Service_FS,
+                  "Failed to mount BIS filesystem for partition_id={:08X}! Could be invalid "
+                  "argument or uninitialized system.",
+                  static_cast<u32>(partition));
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(dir.Code());
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+
+    IFileSystem fs(dir.Unwrap(), SizeGetter::FromStorageId(fsc, FileSys::StorageId::Host));
+    rb.PushIpcInterface<IFileSystem>(std::move(fs));
+}
+
+void FSP_SRV::OpenBisStorage(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto partition = rp.PopRaw<FileSys::BisPartitionId>();
+
+    LOG_DEBUG(Service_FS, "called with partition_id={:08X}", static_cast<u32>(partition));
+
+    auto file = fsc.OpenBISPartitionStorage(partition);
+
+    if (file.Failed()) {
+        LOG_ERROR(Service_FS,
+                  "Failed to mount BIS storage for partition_id={:08X}! Could be invalid "
+                  "argument or uninitialized system.",
+                  static_cast<u32>(partition));
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(file.Code());
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+
+    IStorage fs(file.Unwrap());
+    rb.PushIpcInterface<IStorage>(std::move(fs));
+}
+
+void FSP_SRV::InvalidateBisCache(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_FS, "called");
+
+    // Exists for SDK compatibility -- We do not emulate a BIS cache.
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
 }
 
 void FSP_SRV::OpenSdCardFileSystem(Kernel::HLERequestContext& ctx) {
@@ -815,44 +981,103 @@ void FSP_SRV::CreateSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
 }
 
-void FSP_SRV::OpenSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
-    LOG_INFO(Service_FS, "called.");
+void FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto save_struct = rp.PopRaw<FileSys::SaveDataDescriptor>();
+    auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
+
+    LOG_DEBUG(Service_FS, "called save_struct = {}", save_struct.DebugInfo());
+
+    const auto dir = fsc.CreateSaveData(FileSys::SaveDataSpaceId::NandSystem, save_struct);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(dir.Code());
+}
+
+namespace {
+
+FileSys::StorageId StorageFromSaveDataSpace(FileSys::SaveDataSpaceId space) {
+    switch (space) {
+    case FileSys::SaveDataSpaceId::NandSystem:
+    case FileSys::SaveDataSpaceId::ProperSystem:
+    case FileSys::SaveDataSpaceId::TemporaryStorage:
+        return FileSys::StorageId::NandSystem;
+    case FileSys::SaveDataSpaceId::NandUser:
+        return FileSys::StorageId::NandUser;
+    case FileSys::SaveDataSpaceId::SdCardSystem:
+    case FileSys::SaveDataSpaceId::SdCardUser:
+        return FileSys::StorageId::SdCard;
+    default:
+        return FileSys::StorageId::None;
+    }
+}
+
+template <SaveDataOpenMode mode>
+void OpenSaveDataFileSystemGeneric(Kernel::HLERequestContext& ctx, FileSystemController& fsc) {
+    IPC::RequestParser rp{ctx};
 
     struct Parameters {
         FileSys::SaveDataSpaceId save_data_space_id;
         FileSys::SaveDataDescriptor descriptor;
     };
 
-    IPC::RequestParser rp{ctx};
     const auto parameters = rp.PopRaw<Parameters>();
-
     auto dir = fsc.OpenSaveData(parameters.save_data_space_id, parameters.descriptor);
+
     if (dir.Failed()) {
-        IPC::ResponseBuilder rb{ctx, 2, 0, 0};
+        IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(FileSys::ERROR_ENTITY_NOT_FOUND);
         return;
     }
 
-    FileSys::StorageId id;
-    if (parameters.save_data_space_id == FileSys::SaveDataSpaceId::NandUser) {
-        id = FileSys::StorageId::NandUser;
-    } else if (parameters.save_data_space_id == FileSys::SaveDataSpaceId::SdCardSystem ||
-               parameters.save_data_space_id == FileSys::SaveDataSpaceId::SdCardUser) {
-        id = FileSys::StorageId::SdCard;
-    } else {
-        id = FileSys::StorageId::NandSystem;
+    auto diru = dir.Unwrap();
+
+    if (diru == nullptr) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(FileSys::ERROR_ENTITY_NOT_FOUND);
+        return;
     }
 
-    IFileSystem filesystem(std::move(dir.Unwrap()), SizeGetter::FromStorageId(fsc, id));
+    if constexpr (mode == SaveDataOpenMode::ReadOnly) {
+        diru = std::make_shared<FileSys::ReadOnlyVfsDirectoryLayer>(diru);
+    }
+
+    IFileSystem filesystem(
+        std::move(diru),
+        SizeGetter::FromStorageId(fsc, StorageFromSaveDataSpace(parameters.save_data_space_id)));
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IFileSystem>(std::move(filesystem));
 }
 
+} // namespace
+
+void FSP_SRV::OpenSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
+    OpenSaveDataFileSystemGeneric<SaveDataOpenMode::Normal>(ctx, fsc);
+}
+
 void FSP_SRV::OpenReadOnlySaveDataFileSystem(Kernel::HLERequestContext& ctx) {
-    LOG_WARNING(Service_FS, "(STUBBED) called, delegating to 51 OpenSaveDataFilesystem");
-    OpenSaveDataFileSystem(ctx);
+    OpenSaveDataFileSystemGeneric<SaveDataOpenMode::ReadOnly>(ctx, fsc);
+}
+
+void FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId(Kernel::HLERequestContext& ctx) {
+    OpenSaveDataFileSystemGeneric<SaveDataOpenMode::System>(ctx, fsc);
+}
+
+void FSP_SRV::OpenSaveDataInfoReader(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_FS, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<ISaveDataInfoReader>(
+        std::make_shared<ISaveDataInfoReader>(fsc, std::vector<FileSys::SaveDataSpaceId>{
+                                                       FileSys::SaveDataSpaceId::NandSystem,
+                                                       FileSys::SaveDataSpaceId::NandUser,
+                                                       FileSys::SaveDataSpaceId::TemporaryStorage,
+                                                       FileSys::SaveDataSpaceId::SdCardUser,
+                                                   }));
 }
 
 void FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(Kernel::HLERequestContext& ctx) {
@@ -862,7 +1087,64 @@ void FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(Kernel::HLERequestContext&
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<ISaveDataInfoReader>(std::make_shared<ISaveDataInfoReader>(space, fsc));
+    rb.PushIpcInterface<ISaveDataInfoReader>(
+        std::make_shared<ISaveDataInfoReader>(fsc, std::vector<FileSys::SaveDataSpaceId>{space}));
+}
+
+void FSP_SRV::OpenImageDirectoryFileSystem(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto storage = rp.PopRaw<ImageDirectoryId>();
+    LOG_DEBUG(Service_FS, "called, storage={:08X}", static_cast<u32>(storage));
+
+    auto dir = fsc.GetImageDirectory(storage);
+
+    if (dir == nullptr) {
+        LOG_ERROR(Service_FS, "The image directory requested was invalid!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(FileSys::ERROR_INVALID_ARGUMENT);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface(std::make_shared<IFileSystem>(
+        std::move(dir), SizeGetter::FromStorageId(fsc, storage == ImageDirectoryId::NAND
+                                                           ? FileSys::StorageId::NandUser
+                                                           : FileSys::StorageId::SdCard)));
+}
+
+void FSP_SRV::OpenContentStorageFileSystem(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto storage = rp.PopRaw<ContentStorageId>();
+
+    LOG_DEBUG(Service_FS, "called, storage={:08X}", static_cast<u32>(storage));
+
+    auto dir = fsc.GetContentDirectory(storage);
+
+    if (dir == nullptr) {
+        LOG_ERROR(Service_FS, "The content storage requested was invalid!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(FileSys::ERROR_INVALID_ARGUMENT);
+        return;
+    }
+
+    FileSys::StorageId storage_id = FileSys::StorageId::None;
+    switch (storage) {
+    case ContentStorageId::SdCard:
+        storage_id = FileSys::StorageId::SdCard;
+        break;
+    case ContentStorageId::User:
+        storage_id = FileSys::StorageId::NandUser;
+        break;
+    case ContentStorageId::System:
+        storage_id = FileSys::StorageId::NandSystem;
+        break;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface(
+        std::make_shared<IFileSystem>(std::move(dir), SizeGetter::FromStorageId(fsc, storage_id)));
 }
 
 void FSP_SRV::SetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
@@ -961,7 +1243,7 @@ void FSP_SRV::OutputAccessLogToSdCard(Kernel::HLERequestContext& ctx) {
 
     LOG_DEBUG(Service_FS, "called, log='{}'", log);
 
-    reporter.SaveFilesystemAccessReport(log_mode, std::move(log));
+    system.GetReporter().SaveFilesystemAccessReport(log_mode, std::move(log));
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
@@ -976,4 +1258,30 @@ void FSP_SRV::GetAccessLogVersionInfo(Kernel::HLERequestContext& ctx) {
     rb.Push(access_log_program_index);
 }
 
+void FSP_SRV::OpenSdCardDetectionEventNotifier(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_FS, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface(std::make_shared<IEventNotifier>(sd_card_detection_event.readable));
+}
+
+void FSP_SRV::OpenGameCardDetectionEventNotifier(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_FS, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface(std::make_shared<IEventNotifier>(game_card_detection_event.readable));
+}
+
+void FSP_SRV::SetSdCardEncryptionSeed(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto seed = rp.PopRaw<u128>();
+
+    LOG_INFO(Service_FS, "called with seed={:016X}{:016X}", seed[1], seed[0]);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp_srv.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <memory>
+#include "core/hle/kernel/writable_event.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -32,17 +33,25 @@ enum class LogMode : u32 {
 
 class FSP_SRV final : public ServiceFramework<FSP_SRV> {
 public:
-    explicit FSP_SRV(FileSystemController& fsc, const Core::Reporter& reporter);
+    explicit FSP_SRV(Core::System& system);
     ~FSP_SRV() override;
 
 private:
     void SetCurrentProcess(Kernel::HLERequestContext& ctx);
     void OpenFileSystemWithPatch(Kernel::HLERequestContext& ctx);
+    void OpenBisFileSystem(Kernel::HLERequestContext& ctx);
+    void OpenBisStorage(Kernel::HLERequestContext& ctx);
+    void InvalidateBisCache(Kernel::HLERequestContext& ctx);
     void OpenSdCardFileSystem(Kernel::HLERequestContext& ctx);
     void CreateSaveDataFileSystem(Kernel::HLERequestContext& ctx);
+    void CreateSaveDataFileSystemBySystemSaveDataId(Kernel::HLERequestContext& ctx);
     void OpenSaveDataFileSystem(Kernel::HLERequestContext& ctx);
+    void OpenSaveDataFileSystemBySystemSaveDataId(Kernel::HLERequestContext& ctx);
     void OpenReadOnlySaveDataFileSystem(Kernel::HLERequestContext& ctx);
+    void OpenSaveDataInfoReader(Kernel::HLERequestContext& ctx);
     void OpenSaveDataInfoReaderBySaveDataSpaceId(Kernel::HLERequestContext& ctx);
+    void OpenImageDirectoryFileSystem(Kernel::HLERequestContext& ctx);
+    void OpenContentStorageFileSystem(Kernel::HLERequestContext& ctx);
     void SetGlobalAccessLogMode(Kernel::HLERequestContext& ctx);
     void GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx);
     void OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx);
@@ -50,7 +59,11 @@ private:
     void OpenPatchDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx);
     void OutputAccessLogToSdCard(Kernel::HLERequestContext& ctx);
     void GetAccessLogVersionInfo(Kernel::HLERequestContext& ctx);
+    void OpenSdCardDetectionEventNotifier(Kernel::HLERequestContext& ctx);
+    void OpenGameCardDetectionEventNotifier(Kernel::HLERequestContext& ctx);
+    void SetSdCardEncryptionSeed(Kernel::HLERequestContext& ctx);
 
+    Core::System& system;
     FileSystemController& fsc;
 
     FileSys::VirtualFile romfs;
@@ -58,7 +71,8 @@ private:
     u32 access_log_program_index = 0;
     LogMode log_mode = LogMode::LogToSdCard;
 
-    const Core::Reporter& reporter;
+    Kernel::EventPair sd_card_detection_event;
+    Kernel::EventPair game_card_detection_event;
 };
 
 } // namespace Service::FileSystem

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

@@ -203,13 +203,13 @@ Hid::Hid(Core::System& system) : ServiceFramework("hid"), system(system) {
         {120, &Hid::SetNpadJoyHoldType, "SetNpadJoyHoldType"},
         {121, &Hid::GetNpadJoyHoldType, "GetNpadJoyHoldType"},
         {122, &Hid::SetNpadJoyAssignmentModeSingleByDefault, "SetNpadJoyAssignmentModeSingleByDefault"},
-        {123, nullptr, "SetNpadJoyAssignmentModeSingleByDefault"},
+        {123, &Hid::SetNpadJoyAssignmentModeSingle, "SetNpadJoyAssignmentModeSingle"},
         {124, &Hid::SetNpadJoyAssignmentModeDual, "SetNpadJoyAssignmentModeDual"},
         {125, &Hid::MergeSingleJoyAsDualJoy, "MergeSingleJoyAsDualJoy"},
         {126, &Hid::StartLrAssignmentMode, "StartLrAssignmentMode"},
         {127, &Hid::StopLrAssignmentMode, "StopLrAssignmentMode"},
         {128, &Hid::SetNpadHandheldActivationMode, "SetNpadHandheldActivationMode"},
-        {129, nullptr, "GetNpadHandheldActivationMode"},
+        {129, &Hid::GetNpadHandheldActivationMode, "GetNpadHandheldActivationMode"},
         {130, &Hid::SwapNpadAssignment, "SwapNpadAssignment"},
         {131, nullptr, "IsUnintendedHomeButtonInputProtectionEnabled"},
         {132, nullptr, "EnableUnintendedHomeButtonInputProtection"},
@@ -557,10 +557,126 @@ void Hid::SetNpadJoyAssignmentModeSingleByDefault(Kernel::HLERequestContext& ctx
     LOG_WARNING(Service_HID, "(STUBBED) called, npad_id={}, applet_resource_user_id={}", npad_id,
                 applet_resource_user_id);
 
+    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
+    controller.SetNpadMode(npad_id, Controller_NPad::NPadAssignments::Single);
+
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
 }
 
+void Hid::SetNpadJoyAssignmentModeSingle(Kernel::HLERequestContext& ctx) {
+    // TODO: Check the differences between this and SetNpadJoyAssignmentModeSingleByDefault
+    IPC::RequestParser rp{ctx};
+    const auto npad_id{rp.Pop<u32>()};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+    const auto npad_joy_device_type{rp.Pop<u64>()};
+
+    LOG_WARNING(Service_HID,
+                "(STUBBED) called, npad_id={}, applet_resource_user_id={}, npad_joy_device_type={}",
+                npad_id, applet_resource_user_id, npad_joy_device_type);
+
+    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
+    controller.SetNpadMode(npad_id, Controller_NPad::NPadAssignments::Single);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::SetNpadJoyAssignmentModeDual(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto npad_id{rp.Pop<u32>()};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_DEBUG(Service_HID, "called, npad_id={}, applet_resource_user_id={}", npad_id,
+              applet_resource_user_id);
+
+    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
+    controller.SetNpadMode(npad_id, Controller_NPad::NPadAssignments::Dual);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::MergeSingleJoyAsDualJoy(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto unknown_1{rp.Pop<u32>()};
+    const auto unknown_2{rp.Pop<u32>()};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_WARNING(Service_HID,
+                "(STUBBED) called, unknown_1={}, unknown_2={}, applet_resource_user_id={}",
+                unknown_1, unknown_2, applet_resource_user_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::StartLrAssignmentMode(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
+    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
+    controller.StartLRAssignmentMode();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::StopLrAssignmentMode(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
+    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
+    controller.StopLRAssignmentMode();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::SetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+    const auto mode{rp.Pop<u64>()};
+
+    LOG_WARNING(Service_HID, "(STUBBED) called, applet_resource_user_id={}, mode={}",
+                applet_resource_user_id, mode);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::GetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_WARNING(Service_HID, "(STUBBED) called, applet_resource_user_id={}",
+                applet_resource_user_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Hid::SwapNpadAssignment(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto npad_1{rp.Pop<u32>()};
+    const auto npad_2{rp.Pop<u32>()};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}, npad_1={}, npad_2={}",
+              applet_resource_user_id, npad_1, npad_2);
+
+    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
+    IPC::ResponseBuilder rb{ctx, 2};
+    if (controller.SwapNpadAssignment(npad_1, npad_2)) {
+        rb.Push(RESULT_SUCCESS);
+    } else {
+        LOG_ERROR(Service_HID, "Npads are not connected!");
+        rb.Push(ERR_NPAD_NOT_CONNECTED);
+    }
+}
+
 void Hid::BeginPermitVibrationSession(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto applet_resource_user_id{rp.Pop<u64>()};
@@ -635,47 +751,6 @@ void Hid::GetActualVibrationValue(Kernel::HLERequestContext& ctx) {
         applet_resource->GetController<Controller_NPad>(HidController::NPad).GetLastVibration());
 }
 
-void Hid::SetNpadJoyAssignmentModeDual(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto npad_id{rp.Pop<u32>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_DEBUG(Service_HID, "called, npad_id={}, applet_resource_user_id={}", npad_id,
-              applet_resource_user_id);
-
-    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
-    controller.SetNpadMode(npad_id, Controller_NPad::NPadAssignments::Dual);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(RESULT_SUCCESS);
-}
-
-void Hid::MergeSingleJoyAsDualJoy(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto unknown_1{rp.Pop<u32>()};
-    const auto unknown_2{rp.Pop<u32>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_WARNING(Service_HID,
-                "(STUBBED) called, unknown_1={}, unknown_2={}, applet_resource_user_id={}",
-                unknown_1, unknown_2, applet_resource_user_id);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(RESULT_SUCCESS);
-}
-
-void Hid::SetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-    const auto mode{rp.Pop<u64>()};
-
-    LOG_WARNING(Service_HID, "(STUBBED) called, applet_resource_user_id={}, mode={}",
-                applet_resource_user_id, mode);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(RESULT_SUCCESS);
-}
-
 void Hid::GetVibrationDeviceInfo(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_HID, "called");
 
@@ -769,49 +844,6 @@ void Hid::SetPalmaBoostMode(Kernel::HLERequestContext& ctx) {
     rb.Push(RESULT_SUCCESS);
 }
 
-void Hid::StartLrAssignmentMode(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
-    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
-    controller.StartLRAssignmentMode();
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(RESULT_SUCCESS);
-}
-
-void Hid::StopLrAssignmentMode(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
-    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
-    controller.StopLRAssignmentMode();
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(RESULT_SUCCESS);
-}
-
-void Hid::SwapNpadAssignment(Kernel::HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto npad_1{rp.Pop<u32>()};
-    const auto npad_2{rp.Pop<u32>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}, npad_1={}, npad_2={}",
-              applet_resource_user_id, npad_1, npad_2);
-
-    auto& controller = applet_resource->GetController<Controller_NPad>(HidController::NPad);
-    IPC::ResponseBuilder rb{ctx, 2};
-    if (controller.SwapNpadAssignment(npad_1, npad_2)) {
-        rb.Push(RESULT_SUCCESS);
-    } else {
-        LOG_ERROR(Service_HID, "Npads are not connected!");
-        rb.Push(ERR_NPAD_NOT_CONNECTED);
-    }
-}
-
 class HidDbg final : public ServiceFramework<HidDbg> {
 public:
     explicit HidDbg() : ServiceFramework{"hid:dbg"} {

src/core/hle/service/hid/hid.h

@@ -106,14 +106,19 @@ private:
     void SetNpadJoyHoldType(Kernel::HLERequestContext& ctx);
     void GetNpadJoyHoldType(Kernel::HLERequestContext& ctx);
     void SetNpadJoyAssignmentModeSingleByDefault(Kernel::HLERequestContext& ctx);
+    void SetNpadJoyAssignmentModeSingle(Kernel::HLERequestContext& ctx);
+    void SetNpadJoyAssignmentModeDual(Kernel::HLERequestContext& ctx);
+    void MergeSingleJoyAsDualJoy(Kernel::HLERequestContext& ctx);
+    void StartLrAssignmentMode(Kernel::HLERequestContext& ctx);
+    void StopLrAssignmentMode(Kernel::HLERequestContext& ctx);
+    void SetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx);
+    void GetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx);
+    void SwapNpadAssignment(Kernel::HLERequestContext& ctx);
     void BeginPermitVibrationSession(Kernel::HLERequestContext& ctx);
     void EndPermitVibrationSession(Kernel::HLERequestContext& ctx);
     void SendVibrationValue(Kernel::HLERequestContext& ctx);
     void SendVibrationValues(Kernel::HLERequestContext& ctx);
     void GetActualVibrationValue(Kernel::HLERequestContext& ctx);
-    void SetNpadJoyAssignmentModeDual(Kernel::HLERequestContext& ctx);
-    void MergeSingleJoyAsDualJoy(Kernel::HLERequestContext& ctx);
-    void SetNpadHandheldActivationMode(Kernel::HLERequestContext& ctx);
     void GetVibrationDeviceInfo(Kernel::HLERequestContext& ctx);
     void CreateActiveVibrationDeviceList(Kernel::HLERequestContext& ctx);
     void PermitVibration(Kernel::HLERequestContext& ctx);
@@ -123,9 +128,6 @@ private:
     void StopSixAxisSensor(Kernel::HLERequestContext& ctx);
     void SetIsPalmaAllConnectable(Kernel::HLERequestContext& ctx);
     void SetPalmaBoostMode(Kernel::HLERequestContext& ctx);
-    void StartLrAssignmentMode(Kernel::HLERequestContext& ctx);
-    void StopLrAssignmentMode(Kernel::HLERequestContext& ctx);
-    void SwapNpadAssignment(Kernel::HLERequestContext& ctx);
 
     std::shared_ptr<IAppletResource> applet_resource;
     Core::System& system;

src/core/hle/service/lbl/lbl.cpp

@@ -10,6 +10,8 @@
 #include "core/hle/service/lbl/lbl.h"
 #include "core/hle/service/service.h"
 #include "core/hle/service/sm/sm.h"
+#include "core/settings.h"
+#include "video_core/renderer_base.h"
 
 namespace Service::LBL {
 
@@ -18,21 +20,21 @@ public:
     explicit LBL() : ServiceFramework{"lbl"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, nullptr, "SaveCurrentSetting"},
-            {1, nullptr, "LoadCurrentSetting"},
-            {2, nullptr, "SetCurrentBrightnessSetting"},
-            {3, nullptr, "GetCurrentBrightnessSetting"},
-            {4, nullptr, "ApplyCurrentBrightnessSettingToBacklight"},
-            {5, nullptr, "GetBrightnessSettingAppliedToBacklight"},
-            {6, nullptr, "SwitchBacklightOn"},
-            {7, nullptr, "SwitchBacklightOff"},
-            {8, nullptr, "GetBacklightSwitchStatus"},
-            {9, nullptr, "EnableDimming"},
-            {10, nullptr, "DisableDimming"},
-            {11, nullptr, "IsDimmingEnabled"},
-            {12, nullptr, "EnableAutoBrightnessControl"},
-            {13, nullptr, "DisableAutoBrightnessControl"},
-            {14, nullptr, "IsAutoBrightnessControlEnabled"},
+            {0, &LBL::SaveCurrentSetting, "SaveCurrentSetting"},
+            {1, &LBL::LoadCurrentSetting, "LoadCurrentSetting"},
+            {2, &LBL::SetCurrentBrightnessSetting, "SetCurrentBrightnessSetting"},
+            {3, &LBL::GetCurrentBrightnessSetting, "GetCurrentBrightnessSetting"},
+            {4, &LBL::ApplyCurrentBrightnessSettingToBacklight, "ApplyCurrentBrightnessSettingToBacklight"},
+            {5, &LBL::GetBrightnessSettingAppliedToBacklight, "GetBrightnessSettingAppliedToBacklight"},
+            {6, &LBL::SwitchBacklightOn, "SwitchBacklightOn"},
+            {7, &LBL::SwitchBacklightOff, "SwitchBacklightOff"},
+            {8, &LBL::GetBacklightSwitchStatus, "GetBacklightSwitchStatus"},
+            {9, &LBL::EnableDimming, "EnableDimming"},
+            {10, &LBL::DisableDimming, "DisableDimming"},
+            {11, &LBL::IsDimmingEnabled, "IsDimmingEnabled"},
+            {12, &LBL::EnableAutoBrightnessControl, "EnableAutoBrightnessControl"},
+            {13, &LBL::DisableAutoBrightnessControl, "DisableAutoBrightnessControl"},
+            {14, &LBL::IsAutoBrightnessControlEnabled, "IsAutoBrightnessControlEnabled"},
             {15, nullptr, "SetAmbientLightSensorValue"},
             {16, nullptr, "GetAmbientLightSensorValue"},
             {17, nullptr, "SetBrightnessReflectionDelayLevel"},
@@ -42,8 +44,8 @@ public:
             {21, nullptr, "SetCurrentAmbientLightSensorMapping"},
             {22, nullptr, "GetCurrentAmbientLightSensorMapping"},
             {23, nullptr, "IsAmbientLightSensorAvailable"},
-            {24, nullptr, "SetCurrentBrightnessSettingForVrMode"},
-            {25, nullptr, "GetCurrentBrightnessSettingForVrMode"},
+            {24, &LBL::SetCurrentBrightnessSettingForVrMode, "SetCurrentBrightnessSettingForVrMode"},
+            {25, &LBL::GetCurrentBrightnessSettingForVrMode, "GetCurrentBrightnessSettingForVrMode"},
             {26, &LBL::EnableVrMode, "EnableVrMode"},
             {27, &LBL::DisableVrMode, "DisableVrMode"},
             {28, &LBL::IsVrModeEnabled, "IsVrModeEnabled"},
@@ -53,13 +55,209 @@ public:
         RegisterHandlers(functions);
     }
 
+    void LoadFromSettings() {
+        current_brightness = Settings::values.backlight_brightness;
+        current_vr_mode_brightness = Settings::values.backlight_brightness;
+
+        if (auto_brightness_enabled) {
+            return;
+        }
+
+        if (vr_mode_enabled) {
+            Renderer().SetCurrentBrightness(current_vr_mode_brightness);
+        } else {
+            Renderer().SetCurrentBrightness(current_brightness);
+        }
+    }
+
 private:
+    f32 GetAutoBrightnessValue() const {
+        return 0.5f;
+    }
+
+    VideoCore::RendererBase& Renderer() {
+        return Core::System::GetInstance().Renderer();
+    }
+
+    void SaveCurrentSetting(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        Settings::values.backlight_brightness = current_brightness;
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void LoadCurrentSetting(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        LoadFromSettings();
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void SetCurrentBrightnessSetting(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto value = rp.PopRaw<f32>();
+
+        LOG_DEBUG(Service_LBL, "called, value={:.3f}", value);
+
+        current_brightness = std::clamp(value, 0.0f, 1.0f);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void GetCurrentBrightnessSetting(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(current_brightness);
+    }
+
+    void ApplyCurrentBrightnessSettingToBacklight(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        if (!auto_brightness_enabled) {
+            Renderer().SetCurrentBrightness(vr_mode_enabled ? current_vr_mode_brightness
+                                                            : current_brightness);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void GetBrightnessSettingAppliedToBacklight(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(Renderer().GetCurrentResultantBrightness());
+    }
+
+    void SwitchBacklightOn(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto fade_time = rp.PopRaw<u64>();
+
+        LOG_DEBUG(Service_LBL, "called, fade_time={:016X}", fade_time);
+
+        Renderer().SetBacklightStatus(true, fade_time);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void SwitchBacklightOff(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto fade_time = rp.PopRaw<u64>();
+
+        LOG_DEBUG(Service_LBL, "called, fade_time={:016X}", fade_time);
+
+        Renderer().SetBacklightStatus(false, fade_time);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void GetBacklightSwitchStatus(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u8>(Renderer().GetBacklightStatus());
+    }
+
+    void EnableDimming(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        dimming_enabled = true;
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void DisableDimming(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "callled");
+
+        dimming_enabled = false;
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void IsDimmingEnabled(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u8>(dimming_enabled);
+    }
+
+    void EnableAutoBrightnessControl(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        auto_brightness_enabled = true;
+        Renderer().SetCurrentBrightness(GetAutoBrightnessValue());
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void DisableAutoBrightnessControl(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        auto_brightness_enabled = false;
+        Renderer().SetCurrentBrightness(current_brightness);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void IsAutoBrightnessControlEnabled(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u8>(auto_brightness_enabled);
+    }
+
+    void SetCurrentBrightnessSettingForVrMode(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto value = rp.PopRaw<f32>();
+
+        LOG_DEBUG(Service_LBL, "called, value={:.3f}", value);
+
+        current_vr_mode_brightness = std::clamp(value, 0.0f, 1.0f);
+
+        if (vr_mode_enabled && !auto_brightness_enabled) {
+            Renderer().SetCurrentBrightness(value);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void GetCurrentBrightnessSettingForVrMode(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_LBL, "called");
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(current_vr_mode_brightness);
+    }
+
     void EnableVrMode(Kernel::HLERequestContext& ctx) {
         LOG_DEBUG(Service_LBL, "called");
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
 
+        if (!vr_mode_enabled && !auto_brightness_enabled &&
+            current_brightness != current_vr_mode_brightness) {
+            Renderer().SetCurrentBrightness(current_vr_mode_brightness);
+        }
+
         vr_mode_enabled = true;
     }
 
@@ -69,6 +267,11 @@ private:
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
 
+        if (vr_mode_enabled && !auto_brightness_enabled &&
+            current_brightness != current_vr_mode_brightness) {
+            Renderer().SetCurrentBrightness(current_brightness);
+        }
+
         vr_mode_enabled = false;
     }
 
@@ -80,9 +283,27 @@ private:
         rb.Push(vr_mode_enabled);
     }
 
+    bool auto_brightness_enabled = false;
+    bool dimming_enabled = true;
+
+    f32 current_brightness = GetAutoBrightnessValue();
+    f32 current_vr_mode_brightness = GetAutoBrightnessValue();
+
     bool vr_mode_enabled = false;
 };
 
+void RequestLoadCurrentSetting(SM::ServiceManager& sm) {
+    if (&sm == nullptr) {
+        return;
+    }
+
+    const auto lbl = sm.GetService<LBL>("lbl");
+
+    if (lbl) {
+        lbl->LoadFromSettings();
+    }
+}
+
 void InstallInterfaces(SM::ServiceManager& sm) {
     std::make_shared<LBL>()->InstallAsService(sm);
 }

src/core/hle/service/lbl/lbl.h

@@ -10,6 +10,9 @@ class ServiceManager;
 
 namespace Service::LBL {
 
+// Requests the LBL service passed to load brightness values from Settings
+void RequestLoadCurrentSetting(SM::ServiceManager& sm);
+
 void InstallInterfaces(SM::ServiceManager& sm);
 
 } // namespace Service::LBL

src/core/hle/service/nifm/nifm.cpp

@@ -9,6 +9,7 @@
 #include "core/hle/kernel/writable_event.h"
 #include "core/hle/service/nifm/nifm.h"
 #include "core/hle/service/service.h"
+#include "core/settings.h"
 
 namespace Service::NIFM {
 
@@ -88,7 +89,12 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.PushEnum(RequestState::Connected);
+
+        if (Settings::values.bcat_backend == "none") {
+            rb.PushEnum(RequestState::NotSubmitted);
+        } else {
+            rb.PushEnum(RequestState::Connected);
+        }
     }
 
     void GetResult(Kernel::HLERequestContext& ctx) {
@@ -196,14 +202,22 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u8>(1);
+        if (Settings::values.bcat_backend == "none") {
+            rb.Push<u8>(0);
+        } else {
+            rb.Push<u8>(1);
+        }
     }
     void IsAnyInternetRequestAccepted(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_NIFM, "(STUBBED) called");
 
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u8>(1);
+        if (Settings::values.bcat_backend == "none") {
+            rb.Push<u8>(0);
+        } else {
+            rb.Push<u8>(1);
+        }
     }
     Core::System& system;
 };

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

@@ -22,6 +22,18 @@ u32 nvhost_nvdec::ioctl(Ioctl command, const std::vector<u8>& input, const std::
     switch (static_cast<IoctlCommand>(command.raw)) {
     case IoctlCommand::IocSetNVMAPfdCommand:
         return SetNVMAPfd(input, output);
+    case IoctlCommand::IocSubmit:
+        return Submit(input, output);
+    case IoctlCommand::IocGetSyncpoint:
+        return GetSyncpoint(input, output);
+    case IoctlCommand::IocGetWaitbase:
+        return GetWaitbase(input, output);
+    case IoctlCommand::IocMapBuffer:
+        return MapBuffer(input, output);
+    case IoctlCommand::IocMapBufferEx:
+        return MapBufferEx(input, output);
+    case IoctlCommand::IocUnmapBufferEx:
+        return UnmapBufferEx(input, output);
     }
 
     UNIMPLEMENTED_MSG("Unimplemented ioctl");
@@ -30,11 +42,67 @@ u32 nvhost_nvdec::ioctl(Ioctl command, const std::vector<u8>& input, const std::
 
 u32 nvhost_nvdec::SetNVMAPfd(const std::vector<u8>& input, std::vector<u8>& output) {
     IoctlSetNvmapFD params{};
-    std::memcpy(&params, input.data(), input.size());
+    std::memcpy(&params, input.data(), sizeof(IoctlSetNvmapFD));
     LOG_DEBUG(Service_NVDRV, "called, fd={}", params.nvmap_fd);
 
     nvmap_fd = params.nvmap_fd;
     return 0;
 }
 
+u32 nvhost_nvdec::Submit(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlSubmit params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlSubmit));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called");
+    std::memcpy(output.data(), &params, sizeof(IoctlSubmit));
+    return 0;
+}
+
+u32 nvhost_nvdec::GetSyncpoint(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlGetSyncpoint params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlGetSyncpoint));
+    LOG_INFO(Service_NVDRV, "called, unknown=0x{:X}", params.unknown);
+    params.value = 0; // Seems to be hard coded at 0
+    std::memcpy(output.data(), &params, sizeof(IoctlGetSyncpoint));
+    return 0;
+}
+
+u32 nvhost_nvdec::GetWaitbase(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlGetWaitbase params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlGetWaitbase));
+    LOG_INFO(Service_NVDRV, "called, unknown=0x{:X}", params.unknown);
+    params.value = 0; // Seems to be hard coded at 0
+    std::memcpy(output.data(), &params, sizeof(IoctlGetWaitbase));
+    return 0;
+}
+
+u32 nvhost_nvdec::MapBuffer(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlMapBuffer params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlMapBuffer));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called with address={:08X}{:08X}", params.address_2,
+                params.address_1);
+    params.address_1 = 0;
+    params.address_2 = 0;
+    std::memcpy(output.data(), &params, sizeof(IoctlMapBuffer));
+    return 0;
+}
+
+u32 nvhost_nvdec::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlMapBufferEx params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlMapBufferEx));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called with address={:08X}{:08X}", params.address_2,
+                params.address_1);
+    params.address_1 = 0;
+    params.address_2 = 0;
+    std::memcpy(output.data(), &params, sizeof(IoctlMapBufferEx));
+    return 0;
+}
+
+u32 nvhost_nvdec::UnmapBufferEx(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlUnmapBufferEx params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlUnmapBufferEx));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called");
+    std::memcpy(output.data(), &params, sizeof(IoctlUnmapBufferEx));
+    return 0;
+}
+
 } // namespace Service::Nvidia::Devices

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

@@ -23,16 +23,66 @@ public:
 private:
     enum class IoctlCommand : u32_le {
         IocSetNVMAPfdCommand = 0x40044801,
+        IocSubmit = 0xC0400001,
+        IocGetSyncpoint = 0xC0080002,
+        IocGetWaitbase = 0xC0080003,
+        IocMapBuffer = 0xC01C0009,
+        IocMapBufferEx = 0xC0A40009,
+        IocUnmapBufferEx = 0xC0A4000A,
     };
 
     struct IoctlSetNvmapFD {
         u32_le nvmap_fd;
     };
-    static_assert(sizeof(IoctlSetNvmapFD) == 4, "IoctlSetNvmapFD is incorrect size");
+    static_assert(sizeof(IoctlSetNvmapFD) == 0x4, "IoctlSetNvmapFD is incorrect size");
+
+    struct IoctlSubmit {
+        INSERT_PADDING_BYTES(0x40); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlSubmit) == 0x40, "IoctlSubmit has incorrect size");
+
+    struct IoctlGetSyncpoint {
+        u32 unknown; // seems to be ignored? Nintendo added this
+        u32 value;
+    };
+    static_assert(sizeof(IoctlGetSyncpoint) == 0x08, "IoctlGetSyncpoint has incorrect size");
+
+    struct IoctlGetWaitbase {
+        u32 unknown; // seems to be ignored? Nintendo added this
+        u32 value;
+    };
+    static_assert(sizeof(IoctlGetWaitbase) == 0x08, "IoctlGetWaitbase has incorrect size");
+
+    struct IoctlMapBuffer {
+        u32 unknown;
+        u32 address_1;
+        u32 address_2;
+        INSERT_PADDING_BYTES(0x10); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlMapBuffer) == 0x1C, "IoctlMapBuffer is incorrect size");
+
+    struct IoctlMapBufferEx {
+        u32 unknown;
+        u32 address_1;
+        u32 address_2;
+        INSERT_PADDING_BYTES(0x98); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlMapBufferEx) == 0xA4, "IoctlMapBufferEx has incorrect size");
+
+    struct IoctlUnmapBufferEx {
+        INSERT_PADDING_BYTES(0xA4); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlUnmapBufferEx) == 0xA4, "IoctlUnmapBufferEx has incorrect size");
 
     u32_le nvmap_fd{};
 
     u32 SetNVMAPfd(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 Submit(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 GetSyncpoint(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 GetWaitbase(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 MapBuffer(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 UnmapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
 };
 
 } // namespace Service::Nvidia::Devices

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

@@ -22,6 +22,18 @@ u32 nvhost_vic::ioctl(Ioctl command, const std::vector<u8>& input, const std::ve
     switch (static_cast<IoctlCommand>(command.raw)) {
     case IoctlCommand::IocSetNVMAPfdCommand:
         return SetNVMAPfd(input, output);
+    case IoctlCommand::IocSubmit:
+        return Submit(input, output);
+    case IoctlCommand::IocGetSyncpoint:
+        return GetSyncpoint(input, output);
+    case IoctlCommand::IocGetWaitbase:
+        return GetWaitbase(input, output);
+    case IoctlCommand::IocMapBuffer:
+        return MapBuffer(input, output);
+    case IoctlCommand::IocMapBufferEx:
+        return MapBuffer(input, output);
+    case IoctlCommand::IocUnmapBufferEx:
+        return UnmapBufferEx(input, output);
     }
 
     UNIMPLEMENTED_MSG("Unimplemented ioctl");
@@ -30,11 +42,67 @@ u32 nvhost_vic::ioctl(Ioctl command, const std::vector<u8>& input, const std::ve
 
 u32 nvhost_vic::SetNVMAPfd(const std::vector<u8>& input, std::vector<u8>& output) {
     IoctlSetNvmapFD params{};
-    std::memcpy(&params, input.data(), input.size());
+    std::memcpy(&params, input.data(), sizeof(IoctlSetNvmapFD));
     LOG_DEBUG(Service_NVDRV, "called, fd={}", params.nvmap_fd);
 
     nvmap_fd = params.nvmap_fd;
     return 0;
 }
 
+u32 nvhost_vic::Submit(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlSubmit params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlSubmit));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called");
+    std::memcpy(output.data(), &params, sizeof(IoctlSubmit));
+    return 0;
+}
+
+u32 nvhost_vic::GetSyncpoint(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlGetSyncpoint params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlGetSyncpoint));
+    LOG_INFO(Service_NVDRV, "called, unknown=0x{:X}", params.unknown);
+    params.value = 0; // Seems to be hard coded at 0
+    std::memcpy(output.data(), &params, sizeof(IoctlGetSyncpoint));
+    return 0;
+}
+
+u32 nvhost_vic::GetWaitbase(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlGetWaitbase params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlGetWaitbase));
+    LOG_INFO(Service_NVDRV, "called, unknown=0x{:X}", params.unknown);
+    params.value = 0; // Seems to be hard coded at 0
+    std::memcpy(output.data(), &params, sizeof(IoctlGetWaitbase));
+    return 0;
+}
+
+u32 nvhost_vic::MapBuffer(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlMapBuffer params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlMapBuffer));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called with address={:08X}{:08X}", params.address_2,
+                params.address_1);
+    params.address_1 = 0;
+    params.address_2 = 0;
+    std::memcpy(output.data(), &params, sizeof(IoctlMapBuffer));
+    return 0;
+}
+
+u32 nvhost_vic::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlMapBufferEx params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlMapBufferEx));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called with address={:08X}{:08X}", params.address_2,
+                params.address_1);
+    params.address_1 = 0;
+    params.address_2 = 0;
+    std::memcpy(output.data(), &params, sizeof(IoctlMapBufferEx));
+    return 0;
+}
+
+u32 nvhost_vic::UnmapBufferEx(const std::vector<u8>& input, std::vector<u8>& output) {
+    IoctlUnmapBufferEx params{};
+    std::memcpy(&params, input.data(), sizeof(IoctlUnmapBufferEx));
+    LOG_WARNING(Service_NVDRV, "(STUBBED) called");
+    std::memcpy(output.data(), &params, sizeof(IoctlUnmapBufferEx));
+    return 0;
+}
+
 } // namespace Service::Nvidia::Devices

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

@@ -23,6 +23,12 @@ public:
 private:
     enum class IoctlCommand : u32_le {
         IocSetNVMAPfdCommand = 0x40044801,
+        IocSubmit = 0xC0400001,
+        IocGetSyncpoint = 0xC0080002,
+        IocGetWaitbase = 0xC0080003,
+        IocMapBuffer = 0xC01C0009,
+        IocMapBufferEx = 0xC03C0009,
+        IocUnmapBufferEx = 0xC03C000A,
     };
 
     struct IoctlSetNvmapFD {
@@ -30,9 +36,53 @@ private:
     };
     static_assert(sizeof(IoctlSetNvmapFD) == 4, "IoctlSetNvmapFD is incorrect size");
 
+    struct IoctlSubmit {
+        INSERT_PADDING_BYTES(0x40); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlSubmit) == 0x40, "IoctlSubmit is incorrect size");
+
+    struct IoctlGetSyncpoint {
+        u32 unknown; // seems to be ignored? Nintendo added this
+        u32 value;
+    };
+    static_assert(sizeof(IoctlGetSyncpoint) == 0x8, "IoctlGetSyncpoint is incorrect size");
+
+    struct IoctlGetWaitbase {
+        u32 unknown; // seems to be ignored? Nintendo added this
+        u32 value;
+    };
+    static_assert(sizeof(IoctlGetWaitbase) == 0x8, "IoctlGetWaitbase is incorrect size");
+
+    struct IoctlMapBuffer {
+        u32 unknown;
+        u32 address_1;
+        u32 address_2;
+        INSERT_PADDING_BYTES(0x10); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlMapBuffer) == 0x1C, "IoctlMapBuffer is incorrect size");
+
+    struct IoctlMapBufferEx {
+        u32 unknown;
+        u32 address_1;
+        u32 address_2;
+        INSERT_PADDING_BYTES(0x30); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlMapBufferEx) == 0x3C, "IoctlMapBufferEx is incorrect size");
+
+    struct IoctlUnmapBufferEx {
+        INSERT_PADDING_BYTES(0x3C); // TODO(DarkLordZach): RE this structure
+    };
+    static_assert(sizeof(IoctlUnmapBufferEx) == 0x3C, "IoctlUnmapBufferEx is incorrect size");
+
     u32_le nvmap_fd{};
 
     u32 SetNVMAPfd(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 Submit(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 GetSyncpoint(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 GetWaitbase(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 MapBuffer(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
+    u32 UnmapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
 };
 
 } // namespace Service::Nvidia::Devices

src/core/settings.cpp

@@ -6,6 +6,8 @@
 #include "core/core.h"
 #include "core/gdbstub/gdbstub.h"
 #include "core/hle/service/hid/hid.h"
+#include "core/hle/service/lbl/lbl.h"
+#include "core/hle/service/sm/sm.h"
 #include "core/settings.h"
 #include "video_core/renderer_base.h"
 
@@ -70,6 +72,7 @@ void Apply() {
     auto& system_instance = Core::System::GetInstance();
     if (system_instance.IsPoweredOn()) {
         system_instance.Renderer().RefreshBaseSettings();
+        Service::LBL::RequestLoadCurrentSetting(system_instance.ServiceManager());
     }
 
     Service::HID::ReloadInputDevices();

src/core/settings.h

@@ -428,6 +428,8 @@ struct Values {
     float bg_green;
     float bg_blue;
 
+    float backlight_brightness = 0.5f;
+
     std::string log_filter;
 
     bool use_dev_keys;

src/video_core/CMakeLists.txt

@@ -6,6 +6,7 @@ add_library(video_core STATIC
     dma_pusher.h
     debug_utils/debug_utils.cpp
     debug_utils/debug_utils.h
+    engines/const_buffer_engine_interface.h
     engines/const_buffer_info.h
     engines/engine_upload.cpp
     engines/engine_upload.h
@@ -107,10 +108,12 @@ add_library(video_core STATIC
     shader/decode/other.cpp
     shader/ast.cpp
     shader/ast.h
-    shader/control_flow.cpp
-    shader/control_flow.h
     shader/compiler_settings.cpp
     shader/compiler_settings.h
+    shader/const_buffer_locker.cpp
+    shader/const_buffer_locker.h
+    shader/control_flow.cpp
+    shader/control_flow.h
     shader/decode.cpp
     shader/expr.cpp
     shader/expr.h

src/video_core/engines/const_buffer_engine_interface.h

@@ -0,0 +1,120 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <type_traits>
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/textures/texture.h"
+
+namespace Tegra::Engines {
+
+enum class ShaderType : u32 {
+    Vertex = 0,
+    TesselationControl = 1,
+    TesselationEval = 2,
+    Geometry = 3,
+    Fragment = 4,
+    Compute = 5,
+};
+
+struct SamplerDescriptor {
+    union {
+        BitField<0, 20, Tegra::Shader::TextureType> texture_type;
+        BitField<20, 1, u32> is_array;
+        BitField<21, 1, u32> is_buffer;
+        BitField<22, 1, u32> is_shadow;
+        u32 raw{};
+    };
+
+    bool operator==(const SamplerDescriptor& rhs) const noexcept {
+        return raw == rhs.raw;
+    }
+
+    bool operator!=(const SamplerDescriptor& rhs) const noexcept {
+        return raw != rhs.raw;
+    }
+
+    static SamplerDescriptor FromTicTexture(Tegra::Texture::TextureType tic_texture_type) {
+        SamplerDescriptor result;
+        switch (tic_texture_type) {
+        case Tegra::Texture::TextureType::Texture1D:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture1D);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::Texture2D:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::Texture3D:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture3D);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::TextureCubemap:
+            result.texture_type.Assign(Tegra::Shader::TextureType::TextureCube);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::Texture1DArray:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture1D);
+            result.is_array.Assign(1);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::Texture2DArray:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
+            result.is_array.Assign(1);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::Texture1DBuffer: {
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture1D);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(1);
+            result.is_shadow.Assign(0);
+            return result;
+        }
+        case Tegra::Texture::TextureType::Texture2DNoMipmap:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        case Tegra::Texture::TextureType::TextureCubeArray:
+            result.texture_type.Assign(Tegra::Shader::TextureType::TextureCube);
+            result.is_array.Assign(1);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        default:
+            result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
+            result.is_array.Assign(0);
+            result.is_buffer.Assign(0);
+            result.is_shadow.Assign(0);
+            return result;
+        }
+    }
+};
+static_assert(std::is_trivially_copyable_v<SamplerDescriptor>);
+
+class ConstBufferEngineInterface {
+public:
+    virtual ~ConstBufferEngineInterface() = default;
+    virtual u32 AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const = 0;
+    virtual SamplerDescriptor AccessBoundSampler(ShaderType stage, u64 offset) const = 0;
+    virtual SamplerDescriptor AccessBindlessSampler(ShaderType stage, u64 const_buffer,
+                                                    u64 offset) const = 0;
+    virtual u32 GetBoundBuffer() const = 0;
+};
+
+} // namespace Tegra::Engines

src/video_core/engines/fermi_2d.cpp

@@ -28,6 +28,13 @@ void Fermi2D::CallMethod(const GPU::MethodCall& method_call) {
     }
 }
 
+std::pair<u32, u32> DelimitLine(u32 src_1, u32 src_2, u32 dst_1, u32 dst_2, u32 src_line) {
+    const u32 line_a = src_2 - src_1;
+    const u32 line_b = dst_2 - dst_1;
+    const u32 excess = std::max<s32>(0, line_a - src_line + src_1);
+    return {line_b - (excess * line_b) / line_a, excess};
+}
+
 void Fermi2D::HandleSurfaceCopy() {
     LOG_DEBUG(HW_GPU, "Requested a surface copy with operation {}",
               static_cast<u32>(regs.operation));
@@ -47,10 +54,27 @@ void Fermi2D::HandleSurfaceCopy() {
         src_blit_x2 = static_cast<u32>((regs.blit_src_x >> 32) + regs.blit_dst_width);
         src_blit_y2 = static_cast<u32>((regs.blit_src_y >> 32) + regs.blit_dst_height);
     }
+    u32 dst_blit_x2 = regs.blit_dst_x + regs.blit_dst_width;
+    u32 dst_blit_y2 = regs.blit_dst_y + regs.blit_dst_height;
+    const auto [new_dst_w, src_excess_x] =
+        DelimitLine(src_blit_x1, src_blit_x2, regs.blit_dst_x, dst_blit_x2, regs.src.width);
+    const auto [new_dst_h, src_excess_y] =
+        DelimitLine(src_blit_y1, src_blit_y2, regs.blit_dst_y, dst_blit_y2, regs.src.height);
+    dst_blit_x2 = new_dst_w + regs.blit_dst_x;
+    src_blit_x2 = src_blit_x2 - src_excess_x;
+    dst_blit_y2 = new_dst_h + regs.blit_dst_y;
+    src_blit_y2 = src_blit_y2 - src_excess_y;
+    const auto [new_src_w, dst_excess_x] =
+        DelimitLine(regs.blit_dst_x, dst_blit_x2, src_blit_x1, src_blit_x2, regs.dst.width);
+    const auto [new_src_h, dst_excess_y] =
+        DelimitLine(regs.blit_dst_y, dst_blit_y2, src_blit_y1, src_blit_y2, regs.dst.height);
+    src_blit_x2 = new_src_w + src_blit_x1;
+    dst_blit_x2 = dst_blit_x2 - dst_excess_x;
+    src_blit_y2 = new_src_h + src_blit_y1;
+    dst_blit_y2 = dst_blit_y2 - dst_excess_y;
     const Common::Rectangle<u32> src_rect{src_blit_x1, src_blit_y1, src_blit_x2, src_blit_y2};
-    const Common::Rectangle<u32> dst_rect{regs.blit_dst_x, regs.blit_dst_y,
-                                          regs.blit_dst_x + regs.blit_dst_width,
-                                          regs.blit_dst_y + regs.blit_dst_height};
+    const Common::Rectangle<u32> dst_rect{regs.blit_dst_x, regs.blit_dst_y, dst_blit_x2,
+                                          dst_blit_y2};
     Config copy_config;
     copy_config.operation = regs.operation;
     copy_config.filter = regs.blit_control.filter;

src/video_core/engines/kepler_compute.cpp

@@ -70,13 +70,31 @@ Texture::FullTextureInfo KeplerCompute::GetTextureInfo(const Texture::TextureHan
                                     GetTSCEntry(tex_handle.tsc_id)};
 }
 
-u32 KeplerCompute::AccessConstBuffer32(u64 const_buffer, u64 offset) const {
+u32 KeplerCompute::AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const {
+    ASSERT(stage == ShaderType::Compute);
     const auto& buffer = launch_description.const_buffer_config[const_buffer];
     u32 result;
     std::memcpy(&result, memory_manager.GetPointer(buffer.Address() + offset), sizeof(u32));
     return result;
 }
 
+SamplerDescriptor KeplerCompute::AccessBoundSampler(ShaderType stage, u64 offset) const {
+    return AccessBindlessSampler(stage, regs.tex_cb_index, offset * sizeof(Texture::TextureHandle));
+}
+
+SamplerDescriptor KeplerCompute::AccessBindlessSampler(ShaderType stage, u64 const_buffer,
+                                                       u64 offset) const {
+    ASSERT(stage == ShaderType::Compute);
+    const auto& tex_info_buffer = launch_description.const_buffer_config[const_buffer];
+    const GPUVAddr tex_info_address = tex_info_buffer.Address() + offset;
+
+    const Texture::TextureHandle tex_handle{memory_manager.Read<u32>(tex_info_address)};
+    const Texture::FullTextureInfo tex_info = GetTextureInfo(tex_handle, offset);
+    SamplerDescriptor result = SamplerDescriptor::FromTicTexture(tex_info.tic.texture_type.Value());
+    result.is_shadow.Assign(tex_info.tsc.depth_compare_enabled.Value());
+    return result;
+}
+
 void KeplerCompute::ProcessLaunch() {
     const GPUVAddr launch_desc_loc = regs.launch_desc_loc.Address();
     memory_manager.ReadBlockUnsafe(launch_desc_loc, &launch_description,

src/video_core/engines/kepler_compute.h

@@ -10,6 +10,7 @@
 #include "common/bit_field.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
+#include "video_core/engines/const_buffer_engine_interface.h"
 #include "video_core/engines/engine_upload.h"
 #include "video_core/gpu.h"
 #include "video_core/textures/texture.h"
@@ -37,7 +38,7 @@ namespace Tegra::Engines {
 #define KEPLER_COMPUTE_REG_INDEX(field_name)                                                       \
     (offsetof(Tegra::Engines::KeplerCompute::Regs, field_name) / sizeof(u32))
 
-class KeplerCompute final {
+class KeplerCompute final : public ConstBufferEngineInterface {
 public:
     explicit KeplerCompute(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
                            MemoryManager& memory_manager);
@@ -201,7 +202,16 @@ public:
     Texture::FullTextureInfo GetTextureInfo(const Texture::TextureHandle tex_handle,
                                             std::size_t offset) const;
 
-    u32 AccessConstBuffer32(u64 const_buffer, u64 offset) const;
+    u32 AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const override;
+
+    SamplerDescriptor AccessBoundSampler(ShaderType stage, u64 offset) const override;
+
+    SamplerDescriptor AccessBindlessSampler(ShaderType stage, u64 const_buffer,
+                                            u64 offset) const override;
+
+    u32 GetBoundBuffer() const override {
+        return regs.tex_cb_index;
+    }
 
 private:
     Core::System& system;

src/video_core/engines/maxwell_3d.cpp

@@ -847,7 +847,8 @@ void Maxwell3D::ProcessClearBuffers() {
     rasterizer.Clear();
 }
 
-u32 Maxwell3D::AccessConstBuffer32(Regs::ShaderStage stage, u64 const_buffer, u64 offset) const {
+u32 Maxwell3D::AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const {
+    ASSERT(stage != ShaderType::Compute);
     const auto& shader_stage = state.shader_stages[static_cast<std::size_t>(stage)];
     const auto& buffer = shader_stage.const_buffers[const_buffer];
     u32 result;
@@ -855,4 +856,22 @@ u32 Maxwell3D::AccessConstBuffer32(Regs::ShaderStage stage, u64 const_buffer, u6
     return result;
 }
 
+SamplerDescriptor Maxwell3D::AccessBoundSampler(ShaderType stage, u64 offset) const {
+    return AccessBindlessSampler(stage, regs.tex_cb_index, offset * sizeof(Texture::TextureHandle));
+}
+
+SamplerDescriptor Maxwell3D::AccessBindlessSampler(ShaderType stage, u64 const_buffer,
+                                                   u64 offset) const {
+    ASSERT(stage != ShaderType::Compute);
+    const auto& shader = state.shader_stages[static_cast<std::size_t>(stage)];
+    const auto& tex_info_buffer = shader.const_buffers[const_buffer];
+    const GPUVAddr tex_info_address = tex_info_buffer.address + offset;
+
+    const Texture::TextureHandle tex_handle{memory_manager.Read<u32>(tex_info_address)};
+    const Texture::FullTextureInfo tex_info = GetTextureInfo(tex_handle, offset);
+    SamplerDescriptor result = SamplerDescriptor::FromTicTexture(tex_info.tic.texture_type.Value());
+    result.is_shadow.Assign(tex_info.tsc.depth_compare_enabled.Value());
+    return result;
+}
+
 } // namespace Tegra::Engines

src/video_core/engines/maxwell_3d.h

@@ -15,6 +15,7 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/math_util.h"
+#include "video_core/engines/const_buffer_engine_interface.h"
 #include "video_core/engines/const_buffer_info.h"
 #include "video_core/engines/engine_upload.h"
 #include "video_core/gpu.h"
@@ -44,7 +45,7 @@ namespace Tegra::Engines {
 #define MAXWELL3D_REG_INDEX(field_name)                                                            \
     (offsetof(Tegra::Engines::Maxwell3D::Regs, field_name) / sizeof(u32))
 
-class Maxwell3D final {
+class Maxwell3D final : public ConstBufferEngineInterface {
 public:
     explicit Maxwell3D(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
                        MemoryManager& memory_manager);
@@ -1257,7 +1258,16 @@ public:
     /// Returns the texture information for a specific texture in a specific shader stage.
     Texture::FullTextureInfo GetStageTexture(Regs::ShaderStage stage, std::size_t offset) const;
 
-    u32 AccessConstBuffer32(Regs::ShaderStage stage, u64 const_buffer, u64 offset) const;
+    u32 AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const override;
+
+    SamplerDescriptor AccessBoundSampler(ShaderType stage, u64 offset) const override;
+
+    SamplerDescriptor AccessBindlessSampler(ShaderType stage, u64 const_buffer,
+                                            u64 offset) const override;
+
+    u32 GetBoundBuffer() const override {
+        return regs.tex_cb_index;
+    }
 
     /// Memory for macro code - it's undetermined how big this is, however 1MB is much larger than
     /// we've seen used.

src/video_core/renderer_base.cpp

@@ -40,4 +40,35 @@ void RendererBase::RequestScreenshot(void* data, std::function<void()> callback,
     renderer_settings.screenshot_requested = true;
 }
 
+f32 RendererBase::GetCurrentResultantBrightness() const {
+    return renderer_settings.current_brightness / 2.0f;
+}
+
+void RendererBase::SetBacklightStatus(bool enabled, u64 fade_transition_time) {
+    if (fade_transition_time == 0) {
+        // Needed to ensure the renderer recognizes that a change must occur.
+        fade_transition_time = 1;
+    }
+
+    if (enabled && renderer_settings.current_brightness == 0) {
+        renderer_settings.current_brightness = current_brightness_backup;
+        renderer_settings.backlight_fade_time = fade_transition_time;
+    } else if (!enabled && renderer_settings.current_brightness != 0) {
+        current_brightness_backup = renderer_settings.current_brightness;
+        renderer_settings.current_brightness = 0;
+        renderer_settings.backlight_fade_time = fade_transition_time;
+    }
+}
+
+bool RendererBase::GetBacklightStatus() const {
+    return renderer_settings.current_brightness != 0;
+}
+
+void RendererBase::SetCurrentBrightness(f32 value) {
+    if (value != renderer_settings.current_brightness) {
+        renderer_settings.current_brightness = value * 2.0f;
+        renderer_settings.backlight_fade_time = 1;
+    }
+}
+
 } // namespace VideoCore

src/video_core/renderer_base.h

@@ -28,6 +28,10 @@ struct RendererSettings {
     void* screenshot_bits;
     std::function<void()> screenshot_complete_callback;
     Layout::FramebufferLayout screenshot_framebuffer_layout;
+
+    // Backlight & Brightness
+    std::atomic<f32> current_brightness{1.f};
+    std::atomic<u64> backlight_fade_time{0};
 };
 
 class RendererBase : NonCopyable {
@@ -86,6 +90,17 @@ public:
     void RequestScreenshot(void* data, std::function<void()> callback,
                            const Layout::FramebufferLayout& layout);
 
+    // Gets the current brightness, even if it has been changed from the set value. Most of the time
+    // for yuzu this will simply match what was returned, but implementations are free to change the
+    // value in settings.
+    f32 GetCurrentResultantBrightness() const;
+
+    void SetBacklightStatus(bool enabled, u64 fade_transition_time);
+
+    bool GetBacklightStatus() const;
+
+    void SetCurrentBrightness(f32 value);
+
 protected:
     Core::Frontend::EmuWindow& render_window; ///< Reference to the render window handle.
     std::unique_ptr<RasterizerInterface> rasterizer;
@@ -97,6 +112,9 @@ protected:
 private:
     /// Updates the framebuffer layout of the contained render window handle.
     void UpdateCurrentFramebufferLayout();
+
+    // Value of brightness before backlight switch used to preserve value.
+    f32 current_brightness_backup;
 };
 
 } // namespace VideoCore

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -975,7 +975,8 @@ TextureBufferUsage RasterizerOpenGL::SetupDrawTextures(Maxwell::ShaderStage stag
             }
             const auto cbuf = entry.GetBindlessCBuf();
             Tegra::Texture::TextureHandle tex_handle;
-            tex_handle.raw = maxwell3d.AccessConstBuffer32(stage, cbuf.first, cbuf.second);
+            Tegra::Engines::ShaderType shader_type = static_cast<Tegra::Engines::ShaderType>(stage);
+            tex_handle.raw = maxwell3d.AccessConstBuffer32(shader_type, cbuf.first, cbuf.second);
             return maxwell3d.GetTextureInfo(tex_handle, entry.GetOffset());
         }();
 
@@ -1005,7 +1006,8 @@ TextureBufferUsage RasterizerOpenGL::SetupComputeTextures(const Shader& kernel)
             }
             const auto cbuf = entry.GetBindlessCBuf();
             Tegra::Texture::TextureHandle tex_handle;
-            tex_handle.raw = compute.AccessConstBuffer32(cbuf.first, cbuf.second);
+            tex_handle.raw = compute.AccessConstBuffer32(Tegra::Engines::ShaderType::Compute,
+                                                         cbuf.first, cbuf.second);
             return compute.GetTextureInfo(tex_handle, entry.GetOffset());
         }();
 
@@ -1050,7 +1052,8 @@ void RasterizerOpenGL::SetupComputeImages(const Shader& shader) {
             }
             const auto cbuf = entry.GetBindlessCBuf();
             Tegra::Texture::TextureHandle tex_handle;
-            tex_handle.raw = compute.AccessConstBuffer32(cbuf.first, cbuf.second);
+            tex_handle.raw = compute.AccessConstBuffer32(Tegra::Engines::ShaderType::Compute,
+                                                         cbuf.first, cbuf.second);
             return compute.GetTextureInfo(tex_handle, entry.GetOffset()).tic;
         }();
         SetupImage(bindpoint, tic, entry);

src/video_core/renderer_opengl/gl_shader_cache.cpp

@@ -3,13 +3,16 @@
 // Refer to the license.txt file included.
 
 #include <mutex>
+#include <optional>
+#include <string>
 #include <thread>
+#include <unordered_set>
 #include <boost/functional/hash.hpp>
 #include "common/assert.h"
-#include "common/hash.h"
 #include "common/scope_exit.h"
 #include "core/core.h"
 #include "core/frontend/emu_window.h"
+#include "video_core/engines/kepler_compute.h"
 #include "video_core/engines/maxwell_3d.h"
 #include "video_core/memory_manager.h"
 #include "video_core/renderer_opengl/gl_rasterizer.h"
@@ -21,18 +24,20 @@
 
 namespace OpenGL {
 
+using Tegra::Engines::ShaderType;
+using VideoCommon::Shader::ConstBufferLocker;
 using VideoCommon::Shader::ProgramCode;
+using VideoCommon::Shader::ShaderIR;
+
+namespace {
 
 // One UBO is always reserved for emulation values on staged shaders
 constexpr u32 STAGE_RESERVED_UBOS = 1;
 
-struct UnspecializedShader {
-    std::string code;
-    GLShader::ShaderEntries entries;
-    ProgramType program_type;
-};
+constexpr u32 STAGE_MAIN_OFFSET = 10;
+constexpr u32 KERNEL_MAIN_OFFSET = 0;
 
-namespace {
+constexpr VideoCommon::Shader::CompilerSettings COMPILER_SETTINGS{};
 
 /// Gets the address for the specified shader stage program
 GPUVAddr GetShaderAddress(Core::System& system, Maxwell::ShaderProgram program) {
@@ -41,6 +46,39 @@ GPUVAddr GetShaderAddress(Core::System& system, Maxwell::ShaderProgram program)
     return gpu.regs.code_address.CodeAddress() + shader_config.offset;
 }
 
+/// Gets if the current instruction offset is a scheduler instruction
+constexpr bool IsSchedInstruction(std::size_t offset, std::size_t main_offset) {
+    // Sched instructions appear once every 4 instructions.
+    constexpr std::size_t SchedPeriod = 4;
+    const std::size_t absolute_offset = offset - main_offset;
+    return (absolute_offset % SchedPeriod) == 0;
+}
+
+/// Calculates the size of a program stream
+std::size_t CalculateProgramSize(const GLShader::ProgramCode& program) {
+    constexpr std::size_t start_offset = 10;
+    // This is the encoded version of BRA that jumps to itself. All Nvidia
+    // shaders end with one.
+    constexpr u64 self_jumping_branch = 0xE2400FFFFF07000FULL;
+    constexpr u64 mask = 0xFFFFFFFFFF7FFFFFULL;
+    std::size_t offset = start_offset;
+    while (offset < program.size()) {
+        const u64 instruction = program[offset];
+        if (!IsSchedInstruction(offset, start_offset)) {
+            if ((instruction & mask) == self_jumping_branch) {
+                // End on Maxwell's "nop" instruction
+                break;
+            }
+            if (instruction == 0) {
+                break;
+            }
+        }
+        offset++;
+    }
+    // The last instruction is included in the program size
+    return std::min(offset + 1, program.size());
+}
+
 /// Gets the shader program code from memory for the specified address
 ProgramCode GetShaderCode(Tegra::MemoryManager& memory_manager, const GPUVAddr gpu_addr,
                           const u8* host_ptr) {
@@ -51,6 +89,7 @@ ProgramCode GetShaderCode(Tegra::MemoryManager& memory_manager, const GPUVAddr g
     });
     memory_manager.ReadBlockUnsafe(gpu_addr, program_code.data(),
                                    program_code.size() * sizeof(u64));
+    program_code.resize(CalculateProgramSize(program_code));
     return program_code;
 }
 
@@ -71,14 +110,6 @@ constexpr GLenum GetShaderType(ProgramType program_type) {
     }
 }
 
-/// Gets if the current instruction offset is a scheduler instruction
-constexpr bool IsSchedInstruction(std::size_t offset, std::size_t main_offset) {
-    // Sched instructions appear once every 4 instructions.
-    constexpr std::size_t SchedPeriod = 4;
-    const std::size_t absolute_offset = offset - main_offset;
-    return (absolute_offset % SchedPeriod) == 0;
-}
-
 /// Describes primitive behavior on geometry shaders
 constexpr std::tuple<const char*, const char*, u32> GetPrimitiveDescription(GLenum primitive_mode) {
     switch (primitive_mode) {
@@ -121,110 +152,142 @@ ProgramType GetProgramType(Maxwell::ShaderProgram program) {
     return {};
 }
 
-/// Calculates the size of a program stream
-std::size_t CalculateProgramSize(const GLShader::ProgramCode& program) {
-    constexpr std::size_t start_offset = 10;
-    // This is the encoded version of BRA that jumps to itself. All Nvidia
-    // shaders end with one.
-    constexpr u64 self_jumping_branch = 0xE2400FFFFF07000FULL;
-    constexpr u64 mask = 0xFFFFFFFFFF7FFFFFULL;
-    std::size_t offset = start_offset;
-    std::size_t size = start_offset * sizeof(u64);
-    while (offset < program.size()) {
-        const u64 instruction = program[offset];
-        if (!IsSchedInstruction(offset, start_offset)) {
-            if ((instruction & mask) == self_jumping_branch) {
-                // End on Maxwell's "nop" instruction
-                break;
-            }
-            if (instruction == 0) {
-                break;
-            }
-        }
-        size += sizeof(u64);
-        offset++;
-    }
-    // The last instruction is included in the program size
-    return std::min(size + sizeof(u64), program.size() * sizeof(u64));
-}
-
 /// Hashes one (or two) program streams
 u64 GetUniqueIdentifier(ProgramType program_type, const ProgramCode& code,
-                        const ProgramCode& code_b, std::size_t size_a = 0, std::size_t size_b = 0) {
-    if (size_a == 0) {
-        size_a = CalculateProgramSize(code);
+                        const ProgramCode& code_b) {
+    u64 unique_identifier = boost::hash_value(code);
+    if (program_type == ProgramType::VertexA) {
+        // VertexA programs include two programs
+        boost::hash_combine(unique_identifier, boost::hash_value(code_b));
     }
-    u64 unique_identifier = Common::CityHash64(reinterpret_cast<const char*>(code.data()), size_a);
-    if (program_type != ProgramType::VertexA) {
-        return unique_identifier;
-    }
-    // VertexA programs include two programs
-
-    std::size_t seed = 0;
-    boost::hash_combine(seed, unique_identifier);
-
-    if (size_b == 0) {
-        size_b = CalculateProgramSize(code_b);
-    }
-    const u64 identifier_b =
-        Common::CityHash64(reinterpret_cast<const char*>(code_b.data()), size_b);
-    boost::hash_combine(seed, identifier_b);
-    return static_cast<u64>(seed);
+    return unique_identifier;
 }
 
 /// Creates an unspecialized program from code streams
-GLShader::ProgramResult CreateProgram(const Device& device, ProgramType program_type,
-                                      ProgramCode program_code, ProgramCode program_code_b) {
-    GLShader::ShaderSetup setup(program_code);
-    setup.program.size_a = CalculateProgramSize(program_code);
-    setup.program.size_b = 0;
-    if (program_type == ProgramType::VertexA) {
-        // VertexB is always enabled, so when VertexA is enabled, we have two vertex shaders.
-        // Conventional HW does not support this, so we combine VertexA and VertexB into one
-        // stage here.
-        setup.SetProgramB(program_code_b);
-        setup.program.size_b = CalculateProgramSize(program_code_b);
-    }
-    setup.program.unique_identifier = GetUniqueIdentifier(
-        program_type, program_code, program_code_b, setup.program.size_a, setup.program.size_b);
-
+std::string GenerateGLSL(const Device& device, ProgramType program_type, const ShaderIR& ir,
+                         const std::optional<ShaderIR>& ir_b) {
     switch (program_type) {
     case ProgramType::VertexA:
     case ProgramType::VertexB:
-        return GLShader::GenerateVertexShader(device, setup);
+        return GLShader::GenerateVertexShader(device, ir, ir_b ? &*ir_b : nullptr);
     case ProgramType::Geometry:
-        return GLShader::GenerateGeometryShader(device, setup);
+        return GLShader::GenerateGeometryShader(device, ir);
     case ProgramType::Fragment:
-        return GLShader::GenerateFragmentShader(device, setup);
+        return GLShader::GenerateFragmentShader(device, ir);
     case ProgramType::Compute:
-        return GLShader::GenerateComputeShader(device, setup);
+        return GLShader::GenerateComputeShader(device, ir);
     default:
         UNIMPLEMENTED_MSG("Unimplemented program_type={}", static_cast<u32>(program_type));
         return {};
     }
 }
 
-CachedProgram SpecializeShader(const std::string& code, const GLShader::ShaderEntries& entries,
-                               ProgramType program_type, const ProgramVariant& variant,
-                               bool hint_retrievable = false) {
+constexpr const char* GetProgramTypeName(ProgramType program_type) {
+    switch (program_type) {
+    case ProgramType::VertexA:
+    case ProgramType::VertexB:
+        return "VS";
+    case ProgramType::TessellationControl:
+        return "TCS";
+    case ProgramType::TessellationEval:
+        return "TES";
+    case ProgramType::Geometry:
+        return "GS";
+    case ProgramType::Fragment:
+        return "FS";
+    case ProgramType::Compute:
+        return "CS";
+    }
+    return "UNK";
+}
+
+Tegra::Engines::ShaderType GetEnginesShaderType(ProgramType program_type) {
+    switch (program_type) {
+    case ProgramType::VertexA:
+    case ProgramType::VertexB:
+        return Tegra::Engines::ShaderType::Vertex;
+    case ProgramType::TessellationControl:
+        return Tegra::Engines::ShaderType::TesselationControl;
+    case ProgramType::TessellationEval:
+        return Tegra::Engines::ShaderType::TesselationEval;
+    case ProgramType::Geometry:
+        return Tegra::Engines::ShaderType::Geometry;
+    case ProgramType::Fragment:
+        return Tegra::Engines::ShaderType::Fragment;
+    case ProgramType::Compute:
+        return Tegra::Engines::ShaderType::Compute;
+    }
+    UNREACHABLE();
+    return {};
+}
+
+std::string GetShaderId(u64 unique_identifier, ProgramType program_type) {
+    return fmt::format("{}{:016X}", GetProgramTypeName(program_type), unique_identifier);
+}
+
+Tegra::Engines::ConstBufferEngineInterface& GetConstBufferEngineInterface(
+    Core::System& system, ProgramType program_type) {
+    if (program_type == ProgramType::Compute) {
+        return system.GPU().KeplerCompute();
+    } else {
+        return system.GPU().Maxwell3D();
+    }
+}
+
+std::unique_ptr<ConstBufferLocker> MakeLocker(Core::System& system, ProgramType program_type) {
+    return std::make_unique<ConstBufferLocker>(GetEnginesShaderType(program_type),
+                                               GetConstBufferEngineInterface(system, program_type));
+}
+
+void FillLocker(ConstBufferLocker& locker, const ShaderDiskCacheUsage& usage) {
+    for (const auto& key : usage.keys) {
+        const auto [buffer, offset] = key.first;
+        locker.InsertKey(buffer, offset, key.second);
+    }
+    for (const auto& [offset, sampler] : usage.bound_samplers) {
+        locker.InsertBoundSampler(offset, sampler);
+    }
+    for (const auto& [key, sampler] : usage.bindless_samplers) {
+        const auto [buffer, offset] = key;
+        locker.InsertBindlessSampler(buffer, offset, sampler);
+    }
+}
+
+CachedProgram BuildShader(const Device& device, u64 unique_identifier, ProgramType program_type,
+                          const ProgramCode& program_code, const ProgramCode& program_code_b,
+                          const ProgramVariant& variant, ConstBufferLocker& locker,
+                          bool hint_retrievable = false) {
+    LOG_INFO(Render_OpenGL, "called. {}", GetShaderId(unique_identifier, program_type));
+
+    const bool is_compute = program_type == ProgramType::Compute;
+    const u32 main_offset = is_compute ? KERNEL_MAIN_OFFSET : STAGE_MAIN_OFFSET;
+    const ShaderIR ir(program_code, main_offset, COMPILER_SETTINGS, locker);
+    std::optional<ShaderIR> ir_b;
+    if (!program_code_b.empty()) {
+        ir_b.emplace(program_code_b, main_offset, COMPILER_SETTINGS, locker);
+    }
+    const auto entries = GLShader::GetEntries(ir);
+
     auto base_bindings{variant.base_bindings};
     const auto primitive_mode{variant.primitive_mode};
     const auto texture_buffer_usage{variant.texture_buffer_usage};
 
-    std::string source = R"(#version 430 core
+    std::string source = fmt::format(R"(// {}
+#version 430 core
 #extension GL_ARB_separate_shader_objects : enable
 #extension GL_ARB_shader_viewport_layer_array : enable
 #extension GL_EXT_shader_image_load_formatted : enable
 #extension GL_NV_gpu_shader5 : enable
 #extension GL_NV_shader_thread_group : enable
 #extension GL_NV_shader_thread_shuffle : enable
-)";
-    if (program_type == ProgramType::Compute) {
+)",
+                                     GetShaderId(unique_identifier, program_type));
+    if (is_compute) {
         source += "#extension GL_ARB_compute_variable_group_size : require\n";
     }
     source += '\n';
 
-    if (program_type != ProgramType::Compute) {
+    if (!is_compute) {
         source += fmt::format("#define EMULATION_UBO_BINDING {}\n", base_bindings.cbuf++);
     }
 
@@ -268,7 +331,7 @@ CachedProgram SpecializeShader(const std::string& code, const GLShader::ShaderEn
     }
 
     source += '\n';
-    source += code;
+    source += GenerateGLSL(device, program_type, ir, ir_b);
 
     OGLShader shader;
     shader.Create(source.c_str(), GetShaderType(program_type));
@@ -278,85 +341,97 @@ CachedProgram SpecializeShader(const std::string& code, const GLShader::ShaderEn
     return program;
 }
 
-std::set<GLenum> GetSupportedFormats() {
-    std::set<GLenum> supported_formats;
-
+std::unordered_set<GLenum> GetSupportedFormats() {
     GLint num_formats{};
     glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS, &num_formats);
 
     std::vector<GLint> formats(num_formats);
     glGetIntegerv(GL_PROGRAM_BINARY_FORMATS, formats.data());
 
-    for (const GLint format : formats)
+    std::unordered_set<GLenum> supported_formats;
+    for (const GLint format : formats) {
         supported_formats.insert(static_cast<GLenum>(format));
+    }
     return supported_formats;
 }
 
 } // Anonymous namespace
 
 CachedShader::CachedShader(const ShaderParameters& params, ProgramType program_type,
-                           GLShader::ProgramResult result)
-    : RasterizerCacheObject{params.host_ptr}, cpu_addr{params.cpu_addr},
-      unique_identifier{params.unique_identifier}, program_type{program_type},
-      disk_cache{params.disk_cache}, precompiled_programs{params.precompiled_programs},
-      entries{result.second}, code{std::move(result.first)}, shader_length{entries.shader_length} {}
+                           GLShader::ShaderEntries entries, ProgramCode program_code,
+                           ProgramCode program_code_b)
+    : RasterizerCacheObject{params.host_ptr}, system{params.system},
+      disk_cache{params.disk_cache}, device{params.device}, cpu_addr{params.cpu_addr},
+      unique_identifier{params.unique_identifier}, program_type{program_type}, entries{entries},
+      program_code{std::move(program_code)}, program_code_b{std::move(program_code_b)} {
+    if (!params.precompiled_variants) {
+        return;
+    }
+    for (const auto& pair : *params.precompiled_variants) {
+        auto locker = MakeLocker(system, program_type);
+        const auto& usage = pair->first;
+        FillLocker(*locker, usage);
+
+        std::unique_ptr<LockerVariant>* locker_variant = nullptr;
+        const auto it =
+            std::find_if(locker_variants.begin(), locker_variants.end(), [&](const auto& variant) {
+                return variant->locker->HasEqualKeys(*locker);
+            });
+        if (it == locker_variants.end()) {
+            locker_variant = &locker_variants.emplace_back();
+            *locker_variant = std::make_unique<LockerVariant>();
+            locker_variant->get()->locker = std::move(locker);
+        } else {
+            locker_variant = &*it;
+        }
+        locker_variant->get()->programs.emplace(usage.variant, pair->second);
+    }
+}
 
 Shader CachedShader::CreateStageFromMemory(const ShaderParameters& params,
                                            Maxwell::ShaderProgram program_type,
-                                           ProgramCode&& program_code,
-                                           ProgramCode&& program_code_b) {
-    const auto code_size{CalculateProgramSize(program_code)};
-    const auto code_size_b{CalculateProgramSize(program_code_b)};
-    auto result{
-        CreateProgram(params.device, GetProgramType(program_type), program_code, program_code_b)};
-    if (result.first.empty()) {
-        // TODO(Rodrigo): Unimplemented shader stages hit here, avoid using these for now
-        return {};
-    }
-
+                                           ProgramCode program_code, ProgramCode program_code_b) {
     params.disk_cache.SaveRaw(ShaderDiskCacheRaw(
-        params.unique_identifier, GetProgramType(program_type),
-        static_cast<u32>(code_size / sizeof(u64)), static_cast<u32>(code_size_b / sizeof(u64)),
-        std::move(program_code), std::move(program_code_b)));
+        params.unique_identifier, GetProgramType(program_type), program_code, program_code_b));
 
+    ConstBufferLocker locker(GetEnginesShaderType(GetProgramType(program_type)));
+    const ShaderIR ir(program_code, STAGE_MAIN_OFFSET, COMPILER_SETTINGS, locker);
+    // TODO(Rodrigo): Handle VertexA shaders
+    // std::optional<ShaderIR> ir_b;
+    // if (!program_code_b.empty()) {
+    //     ir_b.emplace(program_code_b, STAGE_MAIN_OFFSET);
+    // }
     return std::shared_ptr<CachedShader>(
-        new CachedShader(params, GetProgramType(program_type), std::move(result)));
+        new CachedShader(params, GetProgramType(program_type), GLShader::GetEntries(ir),
+                         std::move(program_code), std::move(program_code_b)));
 }
 
-Shader CachedShader::CreateStageFromCache(const ShaderParameters& params,
-                                          Maxwell::ShaderProgram program_type,
-                                          GLShader::ProgramResult result) {
-    return std::shared_ptr<CachedShader>(
-        new CachedShader(params, GetProgramType(program_type), std::move(result)));
+Shader CachedShader::CreateKernelFromMemory(const ShaderParameters& params, ProgramCode code) {
+    params.disk_cache.SaveRaw(
+        ShaderDiskCacheRaw(params.unique_identifier, ProgramType::Compute, code));
+
+    ConstBufferLocker locker(Tegra::Engines::ShaderType::Compute);
+    const ShaderIR ir(code, KERNEL_MAIN_OFFSET, COMPILER_SETTINGS, locker);
+    return std::shared_ptr<CachedShader>(new CachedShader(
+        params, ProgramType::Compute, GLShader::GetEntries(ir), std::move(code), {}));
 }
 
-Shader CachedShader::CreateKernelFromMemory(const ShaderParameters& params, ProgramCode&& code) {
-    auto result{CreateProgram(params.device, ProgramType::Compute, code, {})};
-
-    const auto code_size{CalculateProgramSize(code)};
-    params.disk_cache.SaveRaw(ShaderDiskCacheRaw(params.unique_identifier, ProgramType::Compute,
-                                                 static_cast<u32>(code_size / sizeof(u64)), 0,
-                                                 std::move(code), {}));
-
-    return std::shared_ptr<CachedShader>(
-        new CachedShader(params, ProgramType::Compute, std::move(result)));
-}
-
-Shader CachedShader::CreateKernelFromCache(const ShaderParameters& params,
-                                           GLShader::ProgramResult result) {
-    return std::shared_ptr<CachedShader>(
-        new CachedShader(params, ProgramType::Compute, std::move(result)));
+Shader CachedShader::CreateFromCache(const ShaderParameters& params,
+                                     const UnspecializedShader& unspecialized) {
+    return std::shared_ptr<CachedShader>(new CachedShader(params, unspecialized.program_type,
+                                                          unspecialized.entries, unspecialized.code,
+                                                          unspecialized.code_b));
 }
 
 std::tuple<GLuint, BaseBindings> CachedShader::GetProgramHandle(const ProgramVariant& variant) {
-    const auto [entry, is_cache_miss] = programs.try_emplace(variant);
+    UpdateVariant();
+
+    const auto [entry, is_cache_miss] = curr_variant->programs.try_emplace(variant);
     auto& program = entry->second;
     if (is_cache_miss) {
-        program = TryLoadProgram(variant);
-        if (!program) {
-            program = SpecializeShader(code, entries, program_type, variant);
-            disk_cache.SaveUsage(GetUsage(variant));
-        }
+        program = BuildShader(device, unique_identifier, program_type, program_code, program_code_b,
+                              variant, *curr_variant->locker);
+        disk_cache.SaveUsage(GetUsage(variant, *curr_variant->locker));
 
         LabelGLObject(GL_PROGRAM, program->handle, cpu_addr);
     }
@@ -372,18 +447,33 @@ std::tuple<GLuint, BaseBindings> CachedShader::GetProgramHandle(const ProgramVar
     return {program->handle, base_bindings};
 }
 
-CachedProgram CachedShader::TryLoadProgram(const ProgramVariant& variant) const {
-    const auto found = precompiled_programs.find(GetUsage(variant));
-    if (found == precompiled_programs.end()) {
-        return {};
+void CachedShader::UpdateVariant() {
+    if (curr_variant && !curr_variant->locker->IsConsistent()) {
+        curr_variant = nullptr;
+    }
+    if (!curr_variant) {
+        for (auto& variant : locker_variants) {
+            if (variant->locker->IsConsistent()) {
+                curr_variant = variant.get();
+            }
+        }
+    }
+    if (!curr_variant) {
+        auto& new_variant = locker_variants.emplace_back();
+        new_variant = std::make_unique<LockerVariant>();
+        new_variant->locker = MakeLocker(system, program_type);
+        curr_variant = new_variant.get();
     }
-    return found->second;
 }
 
-ShaderDiskCacheUsage CachedShader::GetUsage(const ProgramVariant& variant) const {
+ShaderDiskCacheUsage CachedShader::GetUsage(const ProgramVariant& variant,
+                                            const ConstBufferLocker& locker) const {
     ShaderDiskCacheUsage usage;
     usage.unique_identifier = unique_identifier;
     usage.variant = variant;
+    usage.keys = locker.GetKeys();
+    usage.bound_samplers = locker.GetBoundSamplers();
+    usage.bindless_samplers = locker.GetBindlessSamplers();
     return usage;
 }
 
@@ -399,18 +489,15 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
         return;
     }
     const auto [raws, shader_usages] = *transferable;
-
-    auto [decompiled, dumps] = disk_cache.LoadPrecompiled();
-
-    const auto supported_formats{GetSupportedFormats()};
-    const auto unspecialized_shaders{
-        GenerateUnspecializedShaders(stop_loading, callback, raws, decompiled)};
-    if (stop_loading) {
+    if (!GenerateUnspecializedShaders(stop_loading, callback, raws) || stop_loading) {
         return;
     }
 
-    // Track if precompiled cache was altered during loading to know if we have to serialize the
-    // virtual precompiled cache file back to the hard drive
+    const auto dumps = disk_cache.LoadPrecompiled();
+    const auto supported_formats = GetSupportedFormats();
+
+    // Track if precompiled cache was altered during loading to know if we have to
+    // serialize the virtual precompiled cache file back to the hard drive
     bool precompiled_cache_altered = false;
 
     // Inform the frontend about shader build initialization
@@ -433,9 +520,6 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
                 return;
             }
             const auto& usage{shader_usages[i]};
-            LOG_INFO(Render_OpenGL, "Building shader {:016x} (index {} of {})",
-                     usage.unique_identifier, i, shader_usages.size());
-
             const auto& unspecialized{unspecialized_shaders.at(usage.unique_identifier)};
             const auto dump{dumps.find(usage)};
 
@@ -449,21 +533,28 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
                 }
             }
             if (!shader) {
-                shader = SpecializeShader(unspecialized.code, unspecialized.entries,
-                                          unspecialized.program_type, usage.variant, true);
+                auto locker{MakeLocker(system, unspecialized.program_type)};
+                FillLocker(*locker, usage);
+                shader = BuildShader(device, usage.unique_identifier, unspecialized.program_type,
+                                     unspecialized.code, unspecialized.code_b, usage.variant,
+                                     *locker, true);
             }
 
-            std::scoped_lock lock(mutex);
+            std::scoped_lock lock{mutex};
             if (callback) {
                 callback(VideoCore::LoadCallbackStage::Build, ++built_shaders,
                          shader_usages.size());
             }
 
             precompiled_programs.emplace(usage, std::move(shader));
+
+            // TODO(Rodrigo): Is there a better way to do this?
+            precompiled_variants[usage.unique_identifier].push_back(
+                precompiled_programs.find(usage));
         }
     };
 
-    const auto num_workers{static_cast<std::size_t>(std::thread::hardware_concurrency() + 1)};
+    const auto num_workers{static_cast<std::size_t>(std::thread::hardware_concurrency() + 1ULL)};
     const std::size_t bucket_size{shader_usages.size() / num_workers};
     std::vector<std::unique_ptr<Core::Frontend::GraphicsContext>> contexts(num_workers);
     std::vector<std::thread> threads(num_workers);
@@ -483,7 +574,6 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
     if (compilation_failed) {
         // Invalidate the precompiled cache if a shader dumped shader was rejected
         disk_cache.InvalidatePrecompiled();
-        dumps.clear();
         precompiled_cache_altered = true;
         return;
     }
@@ -491,8 +581,8 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
         return;
     }
 
-    // TODO(Rodrigo): Do state tracking for transferable shaders and do a dummy draw before
-    // precompiling them
+    // TODO(Rodrigo): Do state tracking for transferable shaders and do a dummy draw
+    // before precompiling them
 
     for (std::size_t i = 0; i < shader_usages.size(); ++i) {
         const auto& usage{shader_usages[i]};
@@ -508,9 +598,13 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
     }
 }
 
-CachedProgram ShaderCacheOpenGL::GeneratePrecompiledProgram(
-    const ShaderDiskCacheDump& dump, const std::set<GLenum>& supported_formats) {
+const PrecompiledVariants* ShaderCacheOpenGL::GetPrecompiledVariants(u64 unique_identifier) const {
+    const auto it = precompiled_variants.find(unique_identifier);
+    return it == precompiled_variants.end() ? nullptr : &it->second;
+}
 
+CachedProgram ShaderCacheOpenGL::GeneratePrecompiledProgram(
+    const ShaderDiskCacheDump& dump, const std::unordered_set<GLenum>& supported_formats) {
     if (supported_formats.find(dump.binary_format) == supported_formats.end()) {
         LOG_INFO(Render_OpenGL, "Precompiled cache entry with unsupported format - removing");
         return {};
@@ -532,56 +626,52 @@ CachedProgram ShaderCacheOpenGL::GeneratePrecompiledProgram(
     return shader;
 }
 
-std::unordered_map<u64, UnspecializedShader> ShaderCacheOpenGL::GenerateUnspecializedShaders(
+bool ShaderCacheOpenGL::GenerateUnspecializedShaders(
     const std::atomic_bool& stop_loading, const VideoCore::DiskResourceLoadCallback& callback,
-    const std::vector<ShaderDiskCacheRaw>& raws,
-    const std::unordered_map<u64, ShaderDiskCacheDecompiled>& decompiled) {
-    std::unordered_map<u64, UnspecializedShader> unspecialized;
-
+    const std::vector<ShaderDiskCacheRaw>& raws) {
     if (callback) {
         callback(VideoCore::LoadCallbackStage::Decompile, 0, raws.size());
     }
 
     for (std::size_t i = 0; i < raws.size(); ++i) {
         if (stop_loading) {
-            return {};
+            return false;
         }
         const auto& raw{raws[i]};
         const u64 unique_identifier{raw.GetUniqueIdentifier()};
         const u64 calculated_hash{
             GetUniqueIdentifier(raw.GetProgramType(), raw.GetProgramCode(), raw.GetProgramCodeB())};
         if (unique_identifier != calculated_hash) {
-            LOG_ERROR(
-                Render_OpenGL,
-                "Invalid hash in entry={:016x} (obtained hash={:016x}) - removing shader cache",
-                raw.GetUniqueIdentifier(), calculated_hash);
+            LOG_ERROR(Render_OpenGL,
+                      "Invalid hash in entry={:016x} (obtained hash={:016x}) - "
+                      "removing shader cache",
+                      raw.GetUniqueIdentifier(), calculated_hash);
             disk_cache.InvalidateTransferable();
-            return {};
+            return false;
         }
 
-        GLShader::ProgramResult result;
-        if (const auto it = decompiled.find(unique_identifier); it != decompiled.end()) {
-            // If it's stored in the precompiled file, avoid decompiling it here
-            const auto& stored_decompiled{it->second};
-            result = {stored_decompiled.code, stored_decompiled.entries};
-        } else {
-            // Otherwise decompile the shader at boot and save the result to the decompiled file
-            result = CreateProgram(device, raw.GetProgramType(), raw.GetProgramCode(),
-                                   raw.GetProgramCodeB());
-            disk_cache.SaveDecompiled(unique_identifier, result.first, result.second);
-        }
+        const u32 main_offset =
+            raw.GetProgramType() == ProgramType::Compute ? KERNEL_MAIN_OFFSET : STAGE_MAIN_OFFSET;
+        ConstBufferLocker locker(GetEnginesShaderType(raw.GetProgramType()));
+        const ShaderIR ir(raw.GetProgramCode(), main_offset, COMPILER_SETTINGS, locker);
+        // TODO(Rodrigo): Handle VertexA shaders
+        // std::optional<ShaderIR> ir_b;
+        // if (raw.HasProgramA()) {
+        //     ir_b.emplace(raw.GetProgramCodeB(), main_offset);
+        // }
 
-        precompiled_shaders.insert({unique_identifier, result});
-
-        unspecialized.insert(
-            {raw.GetUniqueIdentifier(),
-             {std::move(result.first), std::move(result.second), raw.GetProgramType()}});
+        UnspecializedShader unspecialized;
+        unspecialized.entries = GLShader::GetEntries(ir);
+        unspecialized.program_type = raw.GetProgramType();
+        unspecialized.code = raw.GetProgramCode();
+        unspecialized.code_b = raw.GetProgramCodeB();
+        unspecialized_shaders.emplace(raw.GetUniqueIdentifier(), unspecialized);
 
         if (callback) {
             callback(VideoCore::LoadCallbackStage::Decompile, i, raws.size());
         }
     }
-    return unspecialized;
+    return true;
 }
 
 Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
@@ -590,37 +680,35 @@ Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
     }
 
     auto& memory_manager{system.GPU().MemoryManager()};
-    const GPUVAddr program_addr{GetShaderAddress(system, program)};
+    const GPUVAddr address{GetShaderAddress(system, program)};
 
     // Look up shader in the cache based on address
-    const auto host_ptr{memory_manager.GetPointer(program_addr)};
+    const auto host_ptr{memory_manager.GetPointer(address)};
     Shader shader{TryGet(host_ptr)};
     if (shader) {
         return last_shaders[static_cast<std::size_t>(program)] = shader;
     }
 
     // No shader found - create a new one
-    ProgramCode program_code{GetShaderCode(memory_manager, program_addr, host_ptr)};
-    ProgramCode program_code_b;
-    const bool is_program_a{program == Maxwell::ShaderProgram::VertexA};
-    if (is_program_a) {
-        const GPUVAddr program_addr_b{GetShaderAddress(system, Maxwell::ShaderProgram::VertexB)};
-        program_code_b = GetShaderCode(memory_manager, program_addr_b,
-                                       memory_manager.GetPointer(program_addr_b));
+    ProgramCode code{GetShaderCode(memory_manager, address, host_ptr)};
+    ProgramCode code_b;
+    if (program == Maxwell::ShaderProgram::VertexA) {
+        const GPUVAddr address_b{GetShaderAddress(system, Maxwell::ShaderProgram::VertexB)};
+        code_b = GetShaderCode(memory_manager, address_b, memory_manager.GetPointer(address_b));
     }
 
-    const auto unique_identifier =
-        GetUniqueIdentifier(GetProgramType(program), program_code, program_code_b);
-    const auto cpu_addr{*memory_manager.GpuToCpuAddress(program_addr)};
-    const ShaderParameters params{disk_cache, precompiled_programs, device, cpu_addr,
-                                  host_ptr,   unique_identifier};
+    const auto unique_identifier = GetUniqueIdentifier(GetProgramType(program), code, code_b);
+    const auto precompiled_variants = GetPrecompiledVariants(unique_identifier);
+    const auto cpu_addr{*memory_manager.GpuToCpuAddress(address)};
+    const ShaderParameters params{system,   disk_cache, precompiled_variants, device,
+                                  cpu_addr, host_ptr,   unique_identifier};
 
-    const auto found = precompiled_shaders.find(unique_identifier);
-    if (found == precompiled_shaders.end()) {
-        shader = CachedShader::CreateStageFromMemory(params, program, std::move(program_code),
-                                                     std::move(program_code_b));
+    const auto found = unspecialized_shaders.find(unique_identifier);
+    if (found == unspecialized_shaders.end()) {
+        shader = CachedShader::CreateStageFromMemory(params, program, std::move(code),
+                                                     std::move(code_b));
     } else {
-        shader = CachedShader::CreateStageFromCache(params, program, found->second);
+        shader = CachedShader::CreateFromCache(params, found->second);
     }
     Register(shader);
 
@@ -638,15 +726,16 @@ Shader ShaderCacheOpenGL::GetComputeKernel(GPUVAddr code_addr) {
     // No kernel found - create a new one
     auto code{GetShaderCode(memory_manager, code_addr, host_ptr)};
     const auto unique_identifier{GetUniqueIdentifier(ProgramType::Compute, code, {})};
+    const auto precompiled_variants = GetPrecompiledVariants(unique_identifier);
     const auto cpu_addr{*memory_manager.GpuToCpuAddress(code_addr)};
-    const ShaderParameters params{disk_cache, precompiled_programs, device, cpu_addr,
-                                  host_ptr,   unique_identifier};
+    const ShaderParameters params{system,   disk_cache, precompiled_variants, device,
+                                  cpu_addr, host_ptr,   unique_identifier};
 
-    const auto found = precompiled_shaders.find(unique_identifier);
-    if (found == precompiled_shaders.end()) {
+    const auto found = unspecialized_shaders.find(unique_identifier);
+    if (found == unspecialized_shaders.end()) {
         kernel = CachedShader::CreateKernelFromMemory(params, std::move(code));
     } else {
-        kernel = CachedShader::CreateKernelFromCache(params, found->second);
+        kernel = CachedShader::CreateFromCache(params, found->second);
     }
 
     Register(kernel);

src/video_core/renderer_opengl/gl_shader_cache.h

@@ -8,9 +8,10 @@
 #include <atomic>
 #include <bitset>
 #include <memory>
-#include <set>
+#include <string>
 #include <tuple>
 #include <unordered_map>
+#include <unordered_set>
 #include <vector>
 
 #include <glad/glad.h>
@@ -20,6 +21,8 @@
 #include "video_core/renderer_opengl/gl_resource_manager.h"
 #include "video_core/renderer_opengl/gl_shader_decompiler.h"
 #include "video_core/renderer_opengl/gl_shader_disk_cache.h"
+#include "video_core/shader/const_buffer_locker.h"
+#include "video_core/shader/shader_ir.h"
 
 namespace Core {
 class System;
@@ -40,11 +43,19 @@ using Shader = std::shared_ptr<CachedShader>;
 using CachedProgram = std::shared_ptr<OGLProgram>;
 using Maxwell = Tegra::Engines::Maxwell3D::Regs;
 using PrecompiledPrograms = std::unordered_map<ShaderDiskCacheUsage, CachedProgram>;
-using PrecompiledShaders = std::unordered_map<u64, GLShader::ProgramResult>;
+using PrecompiledVariants = std::vector<PrecompiledPrograms::iterator>;
+
+struct UnspecializedShader {
+    GLShader::ShaderEntries entries;
+    ProgramType program_type;
+    ProgramCode code;
+    ProgramCode code_b;
+};
 
 struct ShaderParameters {
+    Core::System& system;
     ShaderDiskCacheOpenGL& disk_cache;
-    const PrecompiledPrograms& precompiled_programs;
+    const PrecompiledVariants* precompiled_variants;
     const Device& device;
     VAddr cpu_addr;
     u8* host_ptr;
@@ -55,23 +66,18 @@ class CachedShader final : public RasterizerCacheObject {
 public:
     static Shader CreateStageFromMemory(const ShaderParameters& params,
                                         Maxwell::ShaderProgram program_type,
-                                        ProgramCode&& program_code, ProgramCode&& program_code_b);
+                                        ProgramCode program_code, ProgramCode program_code_b);
+    static Shader CreateKernelFromMemory(const ShaderParameters& params, ProgramCode code);
 
-    static Shader CreateStageFromCache(const ShaderParameters& params,
-                                       Maxwell::ShaderProgram program_type,
-                                       GLShader::ProgramResult result);
-
-    static Shader CreateKernelFromMemory(const ShaderParameters& params, ProgramCode&& code);
-
-    static Shader CreateKernelFromCache(const ShaderParameters& params,
-                                        GLShader::ProgramResult result);
+    static Shader CreateFromCache(const ShaderParameters& params,
+                                  const UnspecializedShader& unspecialized);
 
     VAddr GetCpuAddr() const override {
         return cpu_addr;
     }
 
     std::size_t GetSizeInBytes() const override {
-        return shader_length;
+        return program_code.size() * sizeof(u64);
     }
 
     /// Gets the shader entries for the shader
@@ -83,24 +89,36 @@ public:
     std::tuple<GLuint, BaseBindings> GetProgramHandle(const ProgramVariant& variant);
 
 private:
+    struct LockerVariant {
+        std::unique_ptr<VideoCommon::Shader::ConstBufferLocker> locker;
+        std::unordered_map<ProgramVariant, CachedProgram> programs;
+    };
+
     explicit CachedShader(const ShaderParameters& params, ProgramType program_type,
-                          GLShader::ProgramResult result);
+                          GLShader::ShaderEntries entries, ProgramCode program_code,
+                          ProgramCode program_code_b);
 
-    CachedProgram TryLoadProgram(const ProgramVariant& variant) const;
+    void UpdateVariant();
 
-    ShaderDiskCacheUsage GetUsage(const ProgramVariant& variant) const;
+    ShaderDiskCacheUsage GetUsage(const ProgramVariant& variant,
+                                  const VideoCommon::Shader::ConstBufferLocker& locker) const;
+
+    Core::System& system;
+    ShaderDiskCacheOpenGL& disk_cache;
+    const Device& device;
 
     VAddr cpu_addr{};
+
     u64 unique_identifier{};
     ProgramType program_type{};
-    ShaderDiskCacheOpenGL& disk_cache;
-    const PrecompiledPrograms& precompiled_programs;
 
     GLShader::ShaderEntries entries;
-    std::string code;
-    std::size_t shader_length{};
 
-    std::unordered_map<ProgramVariant, CachedProgram> programs;
+    ProgramCode program_code;
+    ProgramCode program_code_b;
+
+    LockerVariant* curr_variant = nullptr;
+    std::vector<std::unique_ptr<LockerVariant>> locker_variants;
 };
 
 class ShaderCacheOpenGL final : public RasterizerCache<Shader> {
@@ -123,21 +141,26 @@ protected:
     void FlushObjectInner(const Shader& object) override {}
 
 private:
-    std::unordered_map<u64, UnspecializedShader> GenerateUnspecializedShaders(
-        const std::atomic_bool& stop_loading, const VideoCore::DiskResourceLoadCallback& callback,
-        const std::vector<ShaderDiskCacheRaw>& raws,
-        const std::unordered_map<u64, ShaderDiskCacheDecompiled>& decompiled);
+    bool GenerateUnspecializedShaders(const std::atomic_bool& stop_loading,
+                                      const VideoCore::DiskResourceLoadCallback& callback,
+                                      const std::vector<ShaderDiskCacheRaw>& raws);
 
     CachedProgram GeneratePrecompiledProgram(const ShaderDiskCacheDump& dump,
-                                             const std::set<GLenum>& supported_formats);
+                                             const std::unordered_set<GLenum>& supported_formats);
+
+    const PrecompiledVariants* GetPrecompiledVariants(u64 unique_identifier) const;
 
     Core::System& system;
     Core::Frontend::EmuWindow& emu_window;
     const Device& device;
+
     ShaderDiskCacheOpenGL disk_cache;
 
-    PrecompiledShaders precompiled_shaders;
     PrecompiledPrograms precompiled_programs;
+    std::unordered_map<u64, PrecompiledVariants> precompiled_variants;
+
+    std::unordered_map<u64, UnspecializedShader> unspecialized_shaders;
+
     std::array<Shader, Maxwell::MaxShaderProgram> last_shaders;
 };
 

src/video_core/renderer_opengl/gl_shader_decompiler.cpp

@@ -415,27 +415,6 @@ public:
         return code.GetResult();
     }
 
-    ShaderEntries GetShaderEntries() const {
-        ShaderEntries entries;
-        for (const auto& cbuf : ir.GetConstantBuffers()) {
-            entries.const_buffers.emplace_back(cbuf.second.GetMaxOffset(), cbuf.second.IsIndirect(),
-                                               cbuf.first);
-        }
-        for (const auto& sampler : ir.GetSamplers()) {
-            entries.samplers.emplace_back(sampler);
-        }
-        for (const auto& [offset, image] : ir.GetImages()) {
-            entries.images.emplace_back(image);
-        }
-        for (const auto& [base, usage] : ir.GetGlobalMemory()) {
-            entries.global_memory_entries.emplace_back(base.cbuf_index, base.cbuf_offset,
-                                                       usage.is_read, usage.is_written);
-        }
-        entries.clip_distances = ir.GetClipDistances();
-        entries.shader_length = ir.GetLength();
-        return entries;
-    }
-
 private:
     friend class ASTDecompiler;
     friend class ExprDecompiler;
@@ -2338,6 +2317,11 @@ public:
         inner += expr.value ? "true" : "false";
     }
 
+    void operator()(VideoCommon::Shader::ExprGprEqual& expr) {
+        inner +=
+            "( ftou(" + decomp.GetRegister(expr.gpr) + ") == " + std::to_string(expr.value) + ')';
+    }
+
     const std::string& GetResult() const {
         return inner;
     }
@@ -2476,25 +2460,46 @@ void GLSLDecompiler::DecompileAST() {
 
 } // Anonymous namespace
 
-std::string GetCommonDeclarations() {
-    return fmt::format(
-        "#define ftoi floatBitsToInt\n"
-        "#define ftou floatBitsToUint\n"
-        "#define itof intBitsToFloat\n"
-        "#define utof uintBitsToFloat\n\n"
-        "bvec2 HalfFloatNanComparison(bvec2 comparison, vec2 pair1, vec2 pair2) {{\n"
-        "    bvec2 is_nan1 = isnan(pair1);\n"
-        "    bvec2 is_nan2 = isnan(pair2);\n"
-        "    return bvec2(comparison.x || is_nan1.x || is_nan2.x, comparison.y || is_nan1.y || "
-        "is_nan2.y);\n"
-        "}}\n\n");
+ShaderEntries GetEntries(const VideoCommon::Shader::ShaderIR& ir) {
+    ShaderEntries entries;
+    for (const auto& cbuf : ir.GetConstantBuffers()) {
+        entries.const_buffers.emplace_back(cbuf.second.GetMaxOffset(), cbuf.second.IsIndirect(),
+                                           cbuf.first);
+    }
+    for (const auto& sampler : ir.GetSamplers()) {
+        entries.samplers.emplace_back(sampler);
+    }
+    for (const auto& [offset, image] : ir.GetImages()) {
+        entries.images.emplace_back(image);
+    }
+    for (const auto& [base, usage] : ir.GetGlobalMemory()) {
+        entries.global_memory_entries.emplace_back(base.cbuf_index, base.cbuf_offset, usage.is_read,
+                                                   usage.is_written);
+    }
+    entries.clip_distances = ir.GetClipDistances();
+    entries.shader_length = ir.GetLength();
+    return entries;
 }
 
-ProgramResult Decompile(const Device& device, const ShaderIR& ir, ProgramType stage,
-                        const std::string& suffix) {
+std::string GetCommonDeclarations() {
+    return R"(#define ftoi floatBitsToInt
+#define ftou floatBitsToUint
+#define itof intBitsToFloat
+#define utof uintBitsToFloat
+
+bvec2 HalfFloatNanComparison(bvec2 comparison, vec2 pair1, vec2 pair2) {
+    bvec2 is_nan1 = isnan(pair1);
+    bvec2 is_nan2 = isnan(pair2);
+    return bvec2(comparison.x || is_nan1.x || is_nan2.x, comparison.y || is_nan1.y || is_nan2.y);
+}
+)";
+}
+
+std::string Decompile(const Device& device, const ShaderIR& ir, ProgramType stage,
+                      const std::string& suffix) {
     GLSLDecompiler decompiler(device, ir, stage, suffix);
     decompiler.Decompile();
-    return {decompiler.GetResult(), decompiler.GetShaderEntries()};
+    return decompiler.GetResult();
 }
 
 } // namespace OpenGL::GLShader

src/video_core/renderer_opengl/gl_shader_decompiler.h

@@ -34,10 +34,7 @@ enum class ProgramType : u32 {
 
 namespace OpenGL::GLShader {
 
-struct ShaderEntries;
-
 using Maxwell = Tegra::Engines::Maxwell3D::Regs;
-using ProgramResult = std::pair<std::string, ShaderEntries>;
 using SamplerEntry = VideoCommon::Shader::Sampler;
 using ImageEntry = VideoCommon::Shader::Image;
 
@@ -93,9 +90,11 @@ struct ShaderEntries {
     std::size_t shader_length{};
 };
 
+ShaderEntries GetEntries(const VideoCommon::Shader::ShaderIR& ir);
+
 std::string GetCommonDeclarations();
 
-ProgramResult Decompile(const Device& device, const VideoCommon::Shader::ShaderIR& ir,
-                        ProgramType stage, const std::string& suffix);
+std::string Decompile(const Device& device, const VideoCommon::Shader::ShaderIR& ir,
+                      ProgramType stage, const std::string& suffix);
 
 } // namespace OpenGL::GLShader

src/video_core/renderer_opengl/gl_shader_disk_cache.cpp

@@ -22,6 +22,29 @@
 
 namespace OpenGL {
 
+using VideoCommon::Shader::BindlessSamplerMap;
+using VideoCommon::Shader::BoundSamplerMap;
+using VideoCommon::Shader::KeyMap;
+
+namespace {
+
+struct ConstBufferKey {
+    u32 cbuf;
+    u32 offset;
+    u32 value;
+};
+
+struct BoundSamplerKey {
+    u32 offset;
+    Tegra::Engines::SamplerDescriptor sampler;
+};
+
+struct BindlessSamplerKey {
+    u32 cbuf;
+    u32 offset;
+    Tegra::Engines::SamplerDescriptor sampler;
+};
+
 using ShaderCacheVersionHash = std::array<u8, 64>;
 
 enum class TransferableEntryKind : u32 {
@@ -29,18 +52,10 @@ enum class TransferableEntryKind : u32 {
     Usage,
 };
 
-enum class PrecompiledEntryKind : u32 {
-    Decompiled,
-    Dump,
-};
-
-constexpr u32 NativeVersion = 4;
+constexpr u32 NativeVersion = 5;
 
 // Making sure sizes doesn't change by accident
 static_assert(sizeof(BaseBindings) == 16);
-static_assert(sizeof(ShaderDiskCacheUsage) == 40);
-
-namespace {
 
 ShaderCacheVersionHash GetShaderCacheVersionHash() {
     ShaderCacheVersionHash hash{};
@@ -49,13 +64,11 @@ ShaderCacheVersionHash GetShaderCacheVersionHash() {
     return hash;
 }
 
-} // namespace
+} // Anonymous namespace
 
 ShaderDiskCacheRaw::ShaderDiskCacheRaw(u64 unique_identifier, ProgramType program_type,
-                                       u32 program_code_size, u32 program_code_size_b,
                                        ProgramCode program_code, ProgramCode program_code_b)
     : unique_identifier{unique_identifier}, program_type{program_type},
-      program_code_size{program_code_size}, program_code_size_b{program_code_size_b},
       program_code{std::move(program_code)}, program_code_b{std::move(program_code_b)} {}
 
 ShaderDiskCacheRaw::ShaderDiskCacheRaw() = default;
@@ -90,15 +103,16 @@ bool ShaderDiskCacheRaw::Load(FileUtil::IOFile& file) {
 bool ShaderDiskCacheRaw::Save(FileUtil::IOFile& file) const {
     if (file.WriteObject(unique_identifier) != 1 ||
         file.WriteObject(static_cast<u32>(program_type)) != 1 ||
-        file.WriteObject(program_code_size) != 1 || file.WriteObject(program_code_size_b) != 1) {
+        file.WriteObject(static_cast<u32>(program_code.size())) != 1 ||
+        file.WriteObject(static_cast<u32>(program_code_b.size())) != 1) {
         return false;
     }
 
-    if (file.WriteArray(program_code.data(), program_code_size) != program_code_size)
+    if (file.WriteArray(program_code.data(), program_code.size()) != program_code.size())
         return false;
 
     if (HasProgramA() &&
-        file.WriteArray(program_code_b.data(), program_code_size_b) != program_code_size_b) {
+        file.WriteArray(program_code_b.data(), program_code_b.size()) != program_code_b.size()) {
         return false;
     }
     return true;
@@ -127,13 +141,13 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
     u32 version{};
     if (file.ReadBytes(&version, sizeof(version)) != sizeof(version)) {
         LOG_ERROR(Render_OpenGL,
-                  "Failed to get transferable cache version for title id={} - skipping",
+                  "Failed to get transferable cache version for title id={}, skipping",
                   GetTitleID());
         return {};
     }
 
     if (version < NativeVersion) {
-        LOG_INFO(Render_OpenGL, "Transferable shader cache is old - removing");
+        LOG_INFO(Render_OpenGL, "Transferable shader cache is old, removing");
         file.Close();
         InvalidateTransferable();
         is_usable = true;
@@ -141,17 +155,18 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
     }
     if (version > NativeVersion) {
         LOG_WARNING(Render_OpenGL, "Transferable shader cache was generated with a newer version "
-                                   "of the emulator - skipping");
+                                   "of the emulator, skipping");
         return {};
     }
 
     // Version is valid, load the shaders
+    constexpr const char error_loading[] = "Failed to load transferable raw entry, skipping";
     std::vector<ShaderDiskCacheRaw> raws;
     std::vector<ShaderDiskCacheUsage> usages;
     while (file.Tell() < file.GetSize()) {
         TransferableEntryKind kind{};
         if (file.ReadBytes(&kind, sizeof(u32)) != sizeof(u32)) {
-            LOG_ERROR(Render_OpenGL, "Failed to read transferable file - skipping");
+            LOG_ERROR(Render_OpenGL, "Failed to read transferable file, skipping");
             return {};
         }
 
@@ -159,7 +174,7 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
         case TransferableEntryKind::Raw: {
             ShaderDiskCacheRaw entry;
             if (!entry.Load(file)) {
-                LOG_ERROR(Render_OpenGL, "Failed to load transferable raw entry - skipping");
+                LOG_ERROR(Render_OpenGL, error_loading);
                 return {};
             }
             transferable.insert({entry.GetUniqueIdentifier(), {}});
@@ -167,16 +182,45 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
             break;
         }
         case TransferableEntryKind::Usage: {
-            ShaderDiskCacheUsage usage{};
-            if (file.ReadBytes(&usage, sizeof(usage)) != sizeof(usage)) {
-                LOG_ERROR(Render_OpenGL, "Failed to load transferable usage entry - skipping");
+            ShaderDiskCacheUsage usage;
+
+            u32 num_keys{};
+            u32 num_bound_samplers{};
+            u32 num_bindless_samplers{};
+            if (file.ReadArray(&usage.unique_identifier, 1) != 1 ||
+                file.ReadArray(&usage.variant, 1) != 1 || file.ReadArray(&num_keys, 1) != 1 ||
+                file.ReadArray(&num_bound_samplers, 1) != 1 ||
+                file.ReadArray(&num_bindless_samplers, 1) != 1) {
+                LOG_ERROR(Render_OpenGL, error_loading);
                 return {};
             }
+
+            std::vector<ConstBufferKey> keys(num_keys);
+            std::vector<BoundSamplerKey> bound_samplers(num_bound_samplers);
+            std::vector<BindlessSamplerKey> bindless_samplers(num_bindless_samplers);
+            if (file.ReadArray(keys.data(), keys.size()) != keys.size() ||
+                file.ReadArray(bound_samplers.data(), bound_samplers.size()) !=
+                    bound_samplers.size() ||
+                file.ReadArray(bindless_samplers.data(), bindless_samplers.size()) !=
+                    bindless_samplers.size()) {
+                LOG_ERROR(Render_OpenGL, error_loading);
+                return {};
+            }
+            for (const auto& key : keys) {
+                usage.keys.insert({{key.cbuf, key.offset}, key.value});
+            }
+            for (const auto& key : bound_samplers) {
+                usage.bound_samplers.emplace(key.offset, key.sampler);
+            }
+            for (const auto& key : bindless_samplers) {
+                usage.bindless_samplers.insert({{key.cbuf, key.offset}, key.sampler});
+            }
+
             usages.push_back(std::move(usage));
             break;
         }
         default:
-            LOG_ERROR(Render_OpenGL, "Unknown transferable shader cache entry kind={} - skipping",
+            LOG_ERROR(Render_OpenGL, "Unknown transferable shader cache entry kind={}, skipping",
                       static_cast<u32>(kind));
             return {};
         }
@@ -186,13 +230,14 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
     return {{std::move(raws), std::move(usages)}};
 }
 
-std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>, ShaderDumpsMap>
+std::unordered_map<ShaderDiskCacheUsage, ShaderDiskCacheDump>
 ShaderDiskCacheOpenGL::LoadPrecompiled() {
     if (!is_usable) {
         return {};
     }
 
-    FileUtil::IOFile file(GetPrecompiledPath(), "rb");
+    std::string path = GetPrecompiledPath();
+    FileUtil::IOFile file(path, "rb");
     if (!file.IsOpen()) {
         LOG_INFO(Render_OpenGL, "No precompiled shader cache found for game with title id={}",
                  GetTitleID());
@@ -202,7 +247,7 @@ ShaderDiskCacheOpenGL::LoadPrecompiled() {
     const auto result = LoadPrecompiledFile(file);
     if (!result) {
         LOG_INFO(Render_OpenGL,
-                 "Failed to load precompiled cache for game with title id={} - removing",
+                 "Failed to load precompiled cache for game with title id={}, removing",
                  GetTitleID());
         file.Close();
         InvalidatePrecompiled();
@@ -211,7 +256,7 @@ ShaderDiskCacheOpenGL::LoadPrecompiled() {
     return *result;
 }
 
-std::optional<std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>, ShaderDumpsMap>>
+std::optional<std::unordered_map<ShaderDiskCacheUsage, ShaderDiskCacheDump>>
 ShaderDiskCacheOpenGL::LoadPrecompiledFile(FileUtil::IOFile& file) {
     // Read compressed file from disk and decompress to virtual precompiled cache file
     std::vector<u8> compressed(file.GetSize());
@@ -231,238 +276,56 @@ ShaderDiskCacheOpenGL::LoadPrecompiledFile(FileUtil::IOFile& file) {
         return {};
     }
 
-    std::unordered_map<u64, ShaderDiskCacheDecompiled> decompiled;
     ShaderDumpsMap dumps;
     while (precompiled_cache_virtual_file_offset < precompiled_cache_virtual_file.GetSize()) {
-        PrecompiledEntryKind kind{};
-        if (!LoadObjectFromPrecompiled(kind)) {
+        u32 num_keys{};
+        u32 num_bound_samplers{};
+        u32 num_bindless_samplers{};
+        ShaderDiskCacheUsage usage;
+        if (!LoadObjectFromPrecompiled(usage.unique_identifier) ||
+            !LoadObjectFromPrecompiled(usage.variant) || !LoadObjectFromPrecompiled(num_keys) ||
+            !LoadObjectFromPrecompiled(num_bound_samplers) ||
+            !LoadObjectFromPrecompiled(num_bindless_samplers)) {
+            return {};
+        }
+        std::vector<ConstBufferKey> keys(num_keys);
+        std::vector<BoundSamplerKey> bound_samplers(num_bound_samplers);
+        std::vector<BindlessSamplerKey> bindless_samplers(num_bindless_samplers);
+        if (!LoadArrayFromPrecompiled(keys.data(), keys.size()) ||
+            !LoadArrayFromPrecompiled(bound_samplers.data(), bound_samplers.size()) !=
+                bound_samplers.size() ||
+            !LoadArrayFromPrecompiled(bindless_samplers.data(), bindless_samplers.size()) !=
+                bindless_samplers.size()) {
+            return {};
+        }
+        for (const auto& key : keys) {
+            usage.keys.insert({{key.cbuf, key.offset}, key.value});
+        }
+        for (const auto& key : bound_samplers) {
+            usage.bound_samplers.emplace(key.offset, key.sampler);
+        }
+        for (const auto& key : bindless_samplers) {
+            usage.bindless_samplers.insert({{key.cbuf, key.offset}, key.sampler});
+        }
+
+        ShaderDiskCacheDump dump;
+        if (!LoadObjectFromPrecompiled(dump.binary_format)) {
             return {};
         }
 
-        switch (kind) {
-        case PrecompiledEntryKind::Decompiled: {
-            u64 unique_identifier{};
-            if (!LoadObjectFromPrecompiled(unique_identifier)) {
-                return {};
-            }
-
-            auto entry = LoadDecompiledEntry();
-            if (!entry) {
-                return {};
-            }
-            decompiled.insert({unique_identifier, std::move(*entry)});
-            break;
-        }
-        case PrecompiledEntryKind::Dump: {
-            ShaderDiskCacheUsage usage;
-            if (!LoadObjectFromPrecompiled(usage)) {
-                return {};
-            }
-
-            ShaderDiskCacheDump dump;
-            if (!LoadObjectFromPrecompiled(dump.binary_format)) {
-                return {};
-            }
-
-            u32 binary_length{};
-            if (!LoadObjectFromPrecompiled(binary_length)) {
-                return {};
-            }
-
-            dump.binary.resize(binary_length);
-            if (!LoadArrayFromPrecompiled(dump.binary.data(), dump.binary.size())) {
-                return {};
-            }
-
-            dumps.insert({usage, dump});
-            break;
-        }
-        default:
+        u32 binary_length{};
+        if (!LoadObjectFromPrecompiled(binary_length)) {
             return {};
         }
-    }
-    return {{decompiled, dumps}};
-}
 
-std::optional<ShaderDiskCacheDecompiled> ShaderDiskCacheOpenGL::LoadDecompiledEntry() {
-    u32 code_size{};
-    if (!LoadObjectFromPrecompiled(code_size)) {
-        return {};
-    }
-
-    std::string code(code_size, '\0');
-    if (!LoadArrayFromPrecompiled(code.data(), code.size())) {
-        return {};
-    }
-
-    ShaderDiskCacheDecompiled entry;
-    entry.code = std::move(code);
-
-    u32 const_buffers_count{};
-    if (!LoadObjectFromPrecompiled(const_buffers_count)) {
-        return {};
-    }
-
-    for (u32 i = 0; i < const_buffers_count; ++i) {
-        u32 max_offset{};
-        u32 index{};
-        bool is_indirect{};
-        if (!LoadObjectFromPrecompiled(max_offset) || !LoadObjectFromPrecompiled(index) ||
-            !LoadObjectFromPrecompiled(is_indirect)) {
+        dump.binary.resize(binary_length);
+        if (!LoadArrayFromPrecompiled(dump.binary.data(), dump.binary.size())) {
             return {};
         }
-        entry.entries.const_buffers.emplace_back(max_offset, is_indirect, index);
-    }
 
-    u32 samplers_count{};
-    if (!LoadObjectFromPrecompiled(samplers_count)) {
-        return {};
+        dumps.emplace(std::move(usage), dump);
     }
-
-    for (u32 i = 0; i < samplers_count; ++i) {
-        u64 offset{};
-        u64 index{};
-        u32 type{};
-        bool is_array{};
-        bool is_shadow{};
-        bool is_bindless{};
-        if (!LoadObjectFromPrecompiled(offset) || !LoadObjectFromPrecompiled(index) ||
-            !LoadObjectFromPrecompiled(type) || !LoadObjectFromPrecompiled(is_array) ||
-            !LoadObjectFromPrecompiled(is_shadow) || !LoadObjectFromPrecompiled(is_bindless)) {
-            return {};
-        }
-        entry.entries.samplers.emplace_back(
-            static_cast<std::size_t>(offset), static_cast<std::size_t>(index),
-            static_cast<Tegra::Shader::TextureType>(type), is_array, is_shadow, is_bindless);
-    }
-
-    u32 images_count{};
-    if (!LoadObjectFromPrecompiled(images_count)) {
-        return {};
-    }
-    for (u32 i = 0; i < images_count; ++i) {
-        u64 offset{};
-        u64 index{};
-        u32 type{};
-        u8 is_bindless{};
-        u8 is_written{};
-        u8 is_read{};
-        u8 is_atomic{};
-        if (!LoadObjectFromPrecompiled(offset) || !LoadObjectFromPrecompiled(index) ||
-            !LoadObjectFromPrecompiled(type) || !LoadObjectFromPrecompiled(is_bindless) ||
-            !LoadObjectFromPrecompiled(is_written) || !LoadObjectFromPrecompiled(is_read) ||
-            !LoadObjectFromPrecompiled(is_atomic)) {
-            return {};
-        }
-        entry.entries.images.emplace_back(
-            static_cast<std::size_t>(offset), static_cast<std::size_t>(index),
-            static_cast<Tegra::Shader::ImageType>(type), is_bindless != 0, is_written != 0,
-            is_read != 0, is_atomic != 0);
-    }
-
-    u32 global_memory_count{};
-    if (!LoadObjectFromPrecompiled(global_memory_count)) {
-        return {};
-    }
-    for (u32 i = 0; i < global_memory_count; ++i) {
-        u32 cbuf_index{};
-        u32 cbuf_offset{};
-        bool is_read{};
-        bool is_written{};
-        if (!LoadObjectFromPrecompiled(cbuf_index) || !LoadObjectFromPrecompiled(cbuf_offset) ||
-            !LoadObjectFromPrecompiled(is_read) || !LoadObjectFromPrecompiled(is_written)) {
-            return {};
-        }
-        entry.entries.global_memory_entries.emplace_back(cbuf_index, cbuf_offset, is_read,
-                                                         is_written);
-    }
-
-    for (auto& clip_distance : entry.entries.clip_distances) {
-        if (!LoadObjectFromPrecompiled(clip_distance)) {
-            return {};
-        }
-    }
-
-    u64 shader_length{};
-    if (!LoadObjectFromPrecompiled(shader_length)) {
-        return {};
-    }
-    entry.entries.shader_length = static_cast<std::size_t>(shader_length);
-
-    return entry;
-}
-
-bool ShaderDiskCacheOpenGL::SaveDecompiledFile(u64 unique_identifier, const std::string& code,
-                                               const GLShader::ShaderEntries& entries) {
-    if (!SaveObjectToPrecompiled(static_cast<u32>(PrecompiledEntryKind::Decompiled)) ||
-        !SaveObjectToPrecompiled(unique_identifier) ||
-        !SaveObjectToPrecompiled(static_cast<u32>(code.size())) ||
-        !SaveArrayToPrecompiled(code.data(), code.size())) {
-        return false;
-    }
-
-    if (!SaveObjectToPrecompiled(static_cast<u32>(entries.const_buffers.size()))) {
-        return false;
-    }
-    for (const auto& cbuf : entries.const_buffers) {
-        if (!SaveObjectToPrecompiled(static_cast<u32>(cbuf.GetMaxOffset())) ||
-            !SaveObjectToPrecompiled(static_cast<u32>(cbuf.GetIndex())) ||
-            !SaveObjectToPrecompiled(cbuf.IsIndirect())) {
-            return false;
-        }
-    }
-
-    if (!SaveObjectToPrecompiled(static_cast<u32>(entries.samplers.size()))) {
-        return false;
-    }
-    for (const auto& sampler : entries.samplers) {
-        if (!SaveObjectToPrecompiled(static_cast<u64>(sampler.GetOffset())) ||
-            !SaveObjectToPrecompiled(static_cast<u64>(sampler.GetIndex())) ||
-            !SaveObjectToPrecompiled(static_cast<u32>(sampler.GetType())) ||
-            !SaveObjectToPrecompiled(sampler.IsArray()) ||
-            !SaveObjectToPrecompiled(sampler.IsShadow()) ||
-            !SaveObjectToPrecompiled(sampler.IsBindless())) {
-            return false;
-        }
-    }
-
-    if (!SaveObjectToPrecompiled(static_cast<u32>(entries.images.size()))) {
-        return false;
-    }
-    for (const auto& image : entries.images) {
-        if (!SaveObjectToPrecompiled(static_cast<u64>(image.GetOffset())) ||
-            !SaveObjectToPrecompiled(static_cast<u64>(image.GetIndex())) ||
-            !SaveObjectToPrecompiled(static_cast<u32>(image.GetType())) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(image.IsBindless() ? 1 : 0)) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(image.IsWritten() ? 1 : 0)) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(image.IsRead() ? 1 : 0)) ||
-            !SaveObjectToPrecompiled(static_cast<u8>(image.IsAtomic() ? 1 : 0))) {
-            return false;
-        }
-    }
-
-    if (!SaveObjectToPrecompiled(static_cast<u32>(entries.global_memory_entries.size()))) {
-        return false;
-    }
-    for (const auto& gmem : entries.global_memory_entries) {
-        if (!SaveObjectToPrecompiled(static_cast<u32>(gmem.GetCbufIndex())) ||
-            !SaveObjectToPrecompiled(static_cast<u32>(gmem.GetCbufOffset())) ||
-            !SaveObjectToPrecompiled(gmem.IsRead()) || !SaveObjectToPrecompiled(gmem.IsWritten())) {
-            return false;
-        }
-    }
-
-    for (const bool clip_distance : entries.clip_distances) {
-        if (!SaveObjectToPrecompiled(clip_distance)) {
-            return false;
-        }
-    }
-
-    if (!SaveObjectToPrecompiled(static_cast<u64>(entries.shader_length))) {
-        return false;
-    }
-
-    return true;
+    return dumps;
 }
 
 void ShaderDiskCacheOpenGL::InvalidateTransferable() {
@@ -494,10 +357,11 @@ void ShaderDiskCacheOpenGL::SaveRaw(const ShaderDiskCacheRaw& entry) {
     }
 
     FileUtil::IOFile file = AppendTransferableFile();
-    if (!file.IsOpen())
+    if (!file.IsOpen()) {
         return;
+    }
     if (file.WriteObject(TransferableEntryKind::Raw) != 1 || !entry.Save(file)) {
-        LOG_ERROR(Render_OpenGL, "Failed to save raw transferable cache entry - removing");
+        LOG_ERROR(Render_OpenGL, "Failed to save raw transferable cache entry, removing");
         file.Close();
         InvalidateTransferable();
         return;
@@ -523,29 +387,39 @@ void ShaderDiskCacheOpenGL::SaveUsage(const ShaderDiskCacheUsage& usage) {
     FileUtil::IOFile file = AppendTransferableFile();
     if (!file.IsOpen())
         return;
-
-    if (file.WriteObject(TransferableEntryKind::Usage) != 1 || file.WriteObject(usage) != 1) {
-        LOG_ERROR(Render_OpenGL, "Failed to save usage transferable cache entry - removing");
+    const auto Close = [&] {
+        LOG_ERROR(Render_OpenGL, "Failed to save usage transferable cache entry, removing");
         file.Close();
         InvalidateTransferable();
+    };
+
+    if (file.WriteObject(TransferableEntryKind::Usage) != 1 ||
+        file.WriteObject(usage.unique_identifier) != 1 || file.WriteObject(usage.variant) != 1 ||
+        file.WriteObject(static_cast<u32>(usage.keys.size())) != 1 ||
+        file.WriteObject(static_cast<u32>(usage.bound_samplers.size())) != 1 ||
+        file.WriteObject(static_cast<u32>(usage.bindless_samplers.size())) != 1) {
+        Close();
         return;
     }
-}
-
-void ShaderDiskCacheOpenGL::SaveDecompiled(u64 unique_identifier, const std::string& code,
-                                           const GLShader::ShaderEntries& entries) {
-    if (!is_usable) {
-        return;
+    for (const auto& [pair, value] : usage.keys) {
+        const auto [cbuf, offset] = pair;
+        if (file.WriteObject(ConstBufferKey{cbuf, offset, value}) != 1) {
+            Close();
+            return;
+        }
     }
-
-    if (precompiled_cache_virtual_file.GetSize() == 0) {
-        SavePrecompiledHeaderToVirtualPrecompiledCache();
+    for (const auto& [offset, sampler] : usage.bound_samplers) {
+        if (file.WriteObject(BoundSamplerKey{offset, sampler}) != 1) {
+            Close();
+            return;
+        }
     }
-
-    if (!SaveDecompiledFile(unique_identifier, code, entries)) {
-        LOG_ERROR(Render_OpenGL,
-                  "Failed to save decompiled entry to the precompiled file - removing");
-        InvalidatePrecompiled();
+    for (const auto& [pair, sampler] : usage.bindless_samplers) {
+        const auto [cbuf, offset] = pair;
+        if (file.WriteObject(BindlessSamplerKey{cbuf, offset, sampler}) != 1) {
+            Close();
+            return;
+        }
     }
 }
 
@@ -554,6 +428,13 @@ void ShaderDiskCacheOpenGL::SaveDump(const ShaderDiskCacheUsage& usage, GLuint p
         return;
     }
 
+    // TODO(Rodrigo): This is a design smell. I shouldn't be having to manually write the header
+    // when writing the dump. This should be done the moment I get access to write to the virtual
+    // file.
+    if (precompiled_cache_virtual_file.GetSize() == 0) {
+        SavePrecompiledHeaderToVirtualPrecompiledCache();
+    }
+
     GLint binary_length{};
     glGetProgramiv(program, GL_PROGRAM_BINARY_LENGTH, &binary_length);
 
@@ -561,21 +442,51 @@ void ShaderDiskCacheOpenGL::SaveDump(const ShaderDiskCacheUsage& usage, GLuint p
     std::vector<u8> binary(binary_length);
     glGetProgramBinary(program, binary_length, nullptr, &binary_format, binary.data());
 
-    if (!SaveObjectToPrecompiled(static_cast<u32>(PrecompiledEntryKind::Dump)) ||
-        !SaveObjectToPrecompiled(usage) ||
-        !SaveObjectToPrecompiled(static_cast<u32>(binary_format)) ||
-        !SaveObjectToPrecompiled(static_cast<u32>(binary_length)) ||
-        !SaveArrayToPrecompiled(binary.data(), binary.size())) {
-        LOG_ERROR(Render_OpenGL, "Failed to save binary program file in shader={:016x} - removing",
+    const auto Close = [&] {
+        LOG_ERROR(Render_OpenGL, "Failed to save binary program file in shader={:016X}, removing",
                   usage.unique_identifier);
         InvalidatePrecompiled();
+    };
+
+    if (!SaveObjectToPrecompiled(usage.unique_identifier) ||
+        !SaveObjectToPrecompiled(usage.variant) ||
+        !SaveObjectToPrecompiled(static_cast<u32>(usage.keys.size())) ||
+        !SaveObjectToPrecompiled(static_cast<u32>(usage.bound_samplers.size())) ||
+        !SaveObjectToPrecompiled(static_cast<u32>(usage.bindless_samplers.size()))) {
+        Close();
         return;
     }
+    for (const auto& [pair, value] : usage.keys) {
+        const auto [cbuf, offset] = pair;
+        if (SaveObjectToPrecompiled(ConstBufferKey{cbuf, offset, value}) != 1) {
+            Close();
+            return;
+        }
+    }
+    for (const auto& [offset, sampler] : usage.bound_samplers) {
+        if (SaveObjectToPrecompiled(BoundSamplerKey{offset, sampler}) != 1) {
+            Close();
+            return;
+        }
+    }
+    for (const auto& [pair, sampler] : usage.bindless_samplers) {
+        const auto [cbuf, offset] = pair;
+        if (SaveObjectToPrecompiled(BindlessSamplerKey{cbuf, offset, sampler}) != 1) {
+            Close();
+            return;
+        }
+    }
+    if (!SaveObjectToPrecompiled(static_cast<u32>(binary_format)) ||
+        !SaveObjectToPrecompiled(static_cast<u32>(binary_length)) ||
+        !SaveArrayToPrecompiled(binary.data(), binary.size())) {
+        Close();
+    }
 }
 
 FileUtil::IOFile ShaderDiskCacheOpenGL::AppendTransferableFile() const {
-    if (!EnsureDirectories())
+    if (!EnsureDirectories()) {
         return {};
+    }
 
     const auto transferable_path{GetTransferablePath()};
     const bool existed = FileUtil::Exists(transferable_path);
@@ -607,8 +518,8 @@ void ShaderDiskCacheOpenGL::SavePrecompiledHeaderToVirtualPrecompiledCache() {
 
 void ShaderDiskCacheOpenGL::SaveVirtualPrecompiledFile() {
     precompiled_cache_virtual_file_offset = 0;
-    const std::vector<u8>& uncompressed = precompiled_cache_virtual_file.ReadAllBytes();
-    const std::vector<u8>& compressed =
+    const std::vector<u8> uncompressed = precompiled_cache_virtual_file.ReadAllBytes();
+    const std::vector<u8> compressed =
         Common::Compression::CompressDataZSTDDefault(uncompressed.data(), uncompressed.size());
 
     const auto precompiled_path{GetPrecompiledPath()};

src/video_core/renderer_opengl/gl_shader_disk_cache.h

@@ -8,6 +8,7 @@
 #include <optional>
 #include <string>
 #include <tuple>
+#include <type_traits>
 #include <unordered_map>
 #include <unordered_set>
 #include <utility>
@@ -19,6 +20,7 @@
 #include "common/common_types.h"
 #include "core/file_sys/vfs_vector.h"
 #include "video_core/renderer_opengl/gl_shader_gen.h"
+#include "video_core/shader/const_buffer_locker.h"
 
 namespace Core {
 class System;
@@ -53,6 +55,7 @@ struct BaseBindings {
         return !operator==(rhs);
     }
 };
+static_assert(std::is_trivially_copyable_v<BaseBindings>);
 
 /// Describes the different variants a single program can be compiled.
 struct ProgramVariant {
@@ -70,13 +73,20 @@ struct ProgramVariant {
     }
 };
 
+static_assert(std::is_trivially_copyable_v<ProgramVariant>);
+
 /// Describes how a shader is used.
 struct ShaderDiskCacheUsage {
     u64 unique_identifier{};
     ProgramVariant variant;
+    VideoCommon::Shader::KeyMap keys;
+    VideoCommon::Shader::BoundSamplerMap bound_samplers;
+    VideoCommon::Shader::BindlessSamplerMap bindless_samplers;
 
     bool operator==(const ShaderDiskCacheUsage& rhs) const {
-        return std::tie(unique_identifier, variant) == std::tie(rhs.unique_identifier, rhs.variant);
+        return std::tie(unique_identifier, variant, keys, bound_samplers, bindless_samplers) ==
+               std::tie(rhs.unique_identifier, rhs.variant, rhs.keys, rhs.bound_samplers,
+                        rhs.bindless_samplers);
     }
 
     bool operator!=(const ShaderDiskCacheUsage& rhs) const {
@@ -123,8 +133,7 @@ namespace OpenGL {
 class ShaderDiskCacheRaw {
 public:
     explicit ShaderDiskCacheRaw(u64 unique_identifier, ProgramType program_type,
-                                u32 program_code_size, u32 program_code_size_b,
-                                ProgramCode program_code, ProgramCode program_code_b);
+                                ProgramCode program_code, ProgramCode program_code_b = {});
     ShaderDiskCacheRaw();
     ~ShaderDiskCacheRaw();
 
@@ -155,22 +164,14 @@ public:
 private:
     u64 unique_identifier{};
     ProgramType program_type{};
-    u32 program_code_size{};
-    u32 program_code_size_b{};
 
     ProgramCode program_code;
     ProgramCode program_code_b;
 };
 
-/// Contains decompiled data from a shader
-struct ShaderDiskCacheDecompiled {
-    std::string code;
-    GLShader::ShaderEntries entries;
-};
-
 /// Contains an OpenGL dumped binary program
 struct ShaderDiskCacheDump {
-    GLenum binary_format;
+    GLenum binary_format{};
     std::vector<u8> binary;
 };
 
@@ -184,9 +185,7 @@ public:
     LoadTransferable();
 
     /// Loads current game's precompiled cache. Invalidates on failure.
-    std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>,
-              std::unordered_map<ShaderDiskCacheUsage, ShaderDiskCacheDump>>
-    LoadPrecompiled();
+    std::unordered_map<ShaderDiskCacheUsage, ShaderDiskCacheDump> LoadPrecompiled();
 
     /// Removes the transferable (and precompiled) cache file.
     void InvalidateTransferable();
@@ -200,10 +199,6 @@ public:
     /// Saves shader usage to the transferable file. Does not check for collisions.
     void SaveUsage(const ShaderDiskCacheUsage& usage);
 
-    /// Saves a decompiled entry to the precompiled file. Does not check for collisions.
-    void SaveDecompiled(u64 unique_identifier, const std::string& code,
-                        const GLShader::ShaderEntries& entries);
-
     /// Saves a dump entry to the precompiled file. Does not check for collisions.
     void SaveDump(const ShaderDiskCacheUsage& usage, GLuint program);
 
@@ -212,18 +207,9 @@ public:
 
 private:
     /// Loads the transferable cache. Returns empty on failure.
-    std::optional<std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>,
-                            std::unordered_map<ShaderDiskCacheUsage, ShaderDiskCacheDump>>>
+    std::optional<std::unordered_map<ShaderDiskCacheUsage, ShaderDiskCacheDump>>
     LoadPrecompiledFile(FileUtil::IOFile& file);
 
-    /// Loads a decompiled cache entry from m_precompiled_cache_virtual_file. Returns empty on
-    /// failure.
-    std::optional<ShaderDiskCacheDecompiled> LoadDecompiledEntry();
-
-    /// Saves a decompiled entry to the passed file. Returns true on success.
-    bool SaveDecompiledFile(u64 unique_identifier, const std::string& code,
-                            const GLShader::ShaderEntries& entries);
-
     /// Opens current game's transferable file and write it's header if it doesn't exist
     FileUtil::IOFile AppendTransferableFile() const;
 

src/video_core/renderer_opengl/gl_shader_gen.cpp

@@ -16,17 +16,8 @@ using VideoCommon::Shader::CompilerSettings;
 using VideoCommon::Shader::ProgramCode;
 using VideoCommon::Shader::ShaderIR;
 
-static constexpr u32 PROGRAM_OFFSET = 10;
-static constexpr u32 COMPUTE_OFFSET = 0;
-
-static constexpr CompilerSettings settings{CompileDepth::NoFlowStack, true};
-
-ProgramResult GenerateVertexShader(const Device& device, const ShaderSetup& setup) {
-    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
-
-    std::string out = "// Shader Unique Id: VS" + id + "\n\n";
-    out += GetCommonDeclarations();
-
+std::string GenerateVertexShader(const Device& device, const ShaderIR& ir, const ShaderIR* ir_b) {
+    std::string out = GetCommonDeclarations();
     out += R"(
 layout (std140, binding = EMULATION_UBO_BINDING) uniform vs_config {
     vec4 viewport_flip;
@@ -34,17 +25,10 @@ layout (std140, binding = EMULATION_UBO_BINDING) uniform vs_config {
 };
 
 )";
-
-    const ShaderIR program_ir(setup.program.code, PROGRAM_OFFSET, setup.program.size_a, settings);
-    const auto stage = setup.IsDualProgram() ? ProgramType::VertexA : ProgramType::VertexB;
-    ProgramResult program = Decompile(device, program_ir, stage, "vertex");
-    out += program.first;
-
-    if (setup.IsDualProgram()) {
-        const ShaderIR program_ir_b(setup.program.code_b, PROGRAM_OFFSET, setup.program.size_b,
-                                    settings);
-        ProgramResult program_b = Decompile(device, program_ir_b, ProgramType::VertexB, "vertex_b");
-        out += program_b.first;
+    const auto stage = ir_b ? ProgramType::VertexA : ProgramType::VertexB;
+    out += Decompile(device, ir, stage, "vertex");
+    if (ir_b) {
+        out += Decompile(device, *ir_b, ProgramType::VertexB, "vertex_b");
     }
 
     out += R"(
@@ -52,7 +36,7 @@ void main() {
     execute_vertex();
 )";
 
-    if (setup.IsDualProgram()) {
+    if (ir_b) {
         out += "    execute_vertex_b();";
     }
 
@@ -66,17 +50,13 @@ void main() {
         // Viewport can be flipped, which is unsupported by glViewport
         gl_Position.xy *= viewport_flip.xy;
     }
-})";
-
-    return {std::move(out), std::move(program.second)};
+}
+)";
+    return out;
 }
 
-ProgramResult GenerateGeometryShader(const Device& device, const ShaderSetup& setup) {
-    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
-
-    std::string out = "// Shader Unique Id: GS" + id + "\n\n";
-    out += GetCommonDeclarations();
-
+std::string GenerateGeometryShader(const Device& device, const ShaderIR& ir) {
+    std::string out = GetCommonDeclarations();
     out += R"(
 layout (std140, binding = EMULATION_UBO_BINDING) uniform gs_config {
     vec4 viewport_flip;
@@ -84,25 +64,18 @@ layout (std140, binding = EMULATION_UBO_BINDING) uniform gs_config {
 };
 
 )";
-
-    const ShaderIR program_ir(setup.program.code, PROGRAM_OFFSET, setup.program.size_a, settings);
-    ProgramResult program = Decompile(device, program_ir, ProgramType::Geometry, "geometry");
-    out += program.first;
+    out += Decompile(device, ir, ProgramType::Geometry, "geometry");
 
     out += R"(
 void main() {
     execute_geometry();
-};)";
-
-    return {std::move(out), std::move(program.second)};
+}
+)";
+    return out;
 }
 
-ProgramResult GenerateFragmentShader(const Device& device, const ShaderSetup& setup) {
-    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
-
-    std::string out = "// Shader Unique Id: FS" + id + "\n\n";
-    out += GetCommonDeclarations();
-
+std::string GenerateFragmentShader(const Device& device, const ShaderIR& ir) {
+    std::string out = GetCommonDeclarations();
     out += R"(
 layout (location = 0) out vec4 FragColor0;
 layout (location = 1) out vec4 FragColor1;
@@ -119,36 +92,25 @@ layout (std140, binding = EMULATION_UBO_BINDING) uniform fs_config {
 };
 
 )";
-
-    const ShaderIR program_ir(setup.program.code, PROGRAM_OFFSET, setup.program.size_a, settings);
-    ProgramResult program = Decompile(device, program_ir, ProgramType::Fragment, "fragment");
-    out += program.first;
+    out += Decompile(device, ir, ProgramType::Fragment, "fragment");
 
     out += R"(
 void main() {
     execute_fragment();
 }
-
 )";
-    return {std::move(out), std::move(program.second)};
+    return out;
 }
 
-ProgramResult GenerateComputeShader(const Device& device, const ShaderSetup& setup) {
-    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
-
-    std::string out = "// Shader Unique Id: CS" + id + "\n\n";
-    out += GetCommonDeclarations();
-
-    const ShaderIR program_ir(setup.program.code, COMPUTE_OFFSET, setup.program.size_a, settings);
-    ProgramResult program = Decompile(device, program_ir, ProgramType::Compute, "compute");
-    out += program.first;
-
+std::string GenerateComputeShader(const Device& device, const ShaderIR& ir) {
+    std::string out = GetCommonDeclarations();
+    out += Decompile(device, ir, ProgramType::Compute, "compute");
     out += R"(
 void main() {
     execute_compute();
 }
 )";
-    return {std::move(out), std::move(program.second)};
+    return out;
 }
 
 } // namespace OpenGL::GLShader

src/video_core/renderer_opengl/gl_shader_gen.h

@@ -17,44 +17,18 @@ class Device;
 namespace OpenGL::GLShader {
 
 using VideoCommon::Shader::ProgramCode;
-
-struct ShaderSetup {
-    explicit ShaderSetup(ProgramCode program_code) {
-        program.code = std::move(program_code);
-    }
-
-    struct {
-        ProgramCode code;
-        ProgramCode code_b; // Used for dual vertex shaders
-        u64 unique_identifier;
-        std::size_t size_a;
-        std::size_t size_b;
-    } program;
-
-    /// Used in scenarios where we have a dual vertex shaders
-    void SetProgramB(ProgramCode program_b) {
-        program.code_b = std::move(program_b);
-        has_program_b = true;
-    }
-
-    bool IsDualProgram() const {
-        return has_program_b;
-    }
-
-private:
-    bool has_program_b{};
-};
+using VideoCommon::Shader::ShaderIR;
 
 /// Generates the GLSL vertex shader program source code for the given VS program
-ProgramResult GenerateVertexShader(const Device& device, const ShaderSetup& setup);
+std::string GenerateVertexShader(const Device& device, const ShaderIR& ir, const ShaderIR* ir_b);
 
 /// Generates the GLSL geometry shader program source code for the given GS program
-ProgramResult GenerateGeometryShader(const Device& device, const ShaderSetup& setup);
+std::string GenerateGeometryShader(const Device& device, const ShaderIR& ir);
 
 /// Generates the GLSL fragment shader program source code for the given FS program
-ProgramResult GenerateFragmentShader(const Device& device, const ShaderSetup& setup);
+std::string GenerateFragmentShader(const Device& device, const ShaderIR& ir);
 
 /// Generates the GLSL compute shader program source code for the given CS program
-ProgramResult GenerateComputeShader(const Device& device, const ShaderSetup& setup);
+std::string GenerateComputeShader(const Device& device, const ShaderIR& ir);
 
 } // namespace OpenGL::GLShader

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -54,11 +54,13 @@ in vec2 frag_tex_coord;
 out vec4 color;
 
 uniform sampler2D color_texture;
+uniform vec4 backlight;
 
 void main() {
     // Swap RGBA -> ABGR so we don't have to do this on the CPU. This needs to change if we have to
     // support more framebuffer pixel formats.
-    color = texture(color_texture, frag_tex_coord);
+    // Also multiply the color by the backlight multiplier supplied.
+    color = texture(color_texture, frag_tex_coord) * backlight;
 }
 )";
 
@@ -121,8 +123,13 @@ void RendererOpenGL::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
         // Load the framebuffer from memory, draw it to the screen, and swap buffers
         LoadFBToScreenInfo(*framebuffer);
 
-        if (renderer_settings.screenshot_requested)
+        if (renderer_settings.screenshot_requested) {
             CaptureScreenshot();
+        }
+
+        if (renderer_settings.backlight_fade_time > 0) {
+            UpdateBacklight();
+        }
 
         DrawScreen(render_window.GetFramebufferLayout());
 
@@ -205,9 +212,13 @@ void RendererOpenGL::InitOpenGLObjects() {
     state.Apply();
     uniform_modelview_matrix = glGetUniformLocation(shader.handle, "modelview_matrix");
     uniform_color_texture = glGetUniformLocation(shader.handle, "color_texture");
+    uniform_backlight = glGetUniformLocation(shader.handle, "backlight");
     attrib_position = glGetAttribLocation(shader.handle, "vert_position");
     attrib_tex_coord = glGetAttribLocation(shader.handle, "vert_tex_coord");
 
+    // Initialize backlight
+    glUniform4f(uniform_backlight, 1.f, 1.f, 1.f, 1.f);
+
     // Generate VBO handle for drawing
     vertex_buffer.Create();
 
@@ -416,6 +427,29 @@ void RendererOpenGL::CaptureScreenshot() {
     renderer_settings.screenshot_requested = false;
 }
 
+void RendererOpenGL::UpdateBacklight() {
+    constexpr u64 PER_FRAME_FADE_TIME = 1000000000.0f / 60;
+
+    const auto fade_time = renderer_settings.backlight_fade_time.load(std::memory_order_relaxed);
+    auto value = renderer_settings.current_brightness.load(std::memory_order_relaxed);
+    if (fade_time <= PER_FRAME_FADE_TIME) {
+        glUniform4f(uniform_backlight, value, value, value, value);
+        renderer_settings.backlight_fade_time = 0;
+        fade_time_max = 0;
+    } else {
+        if (fade_time_max == 0) {
+            fade_time_max = fade_time;
+            value_max = value;
+        }
+
+        value += (value_max - value) * PER_FRAME_FADE_TIME / fade_time_max;
+
+        glUniform4f(uniform_backlight, value, value, value, value);
+        renderer_settings.backlight_fade_time -= PER_FRAME_FADE_TIME;
+        renderer_settings.current_brightness = value;
+    }
+}
+
 static const char* GetSource(GLenum source) {
 #define RET(s)                                                                                     \
     case GL_DEBUG_SOURCE_##s:                                                                      \

src/video_core/renderer_opengl/renderer_opengl.h

@@ -70,6 +70,7 @@ private:
     void UpdateFramerate();
 
     void CaptureScreenshot();
+    void UpdateBacklight();
 
     // Loads framebuffer from emulated memory into the display information structure
     void LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer);
@@ -97,6 +98,7 @@ private:
     // Shader uniform location indices
     GLuint uniform_modelview_matrix;
     GLuint uniform_color_texture;
+    GLuint uniform_backlight;
 
     // Shader attribute input indices
     GLuint attrib_position;
@@ -105,6 +107,10 @@ private:
     /// Used for transforming the framebuffer orientation
     Tegra::FramebufferConfig::TransformFlags framebuffer_transform_flags;
     Common::Rectangle<int> framebuffer_crop_rect;
+
+    // Used for backlight transitions
+    u64 fade_time_max = 0;
+    f32 value_max = 0;
 };
 
 } // namespace OpenGL

src/video_core/renderer_vulkan/vk_shader_decompiler.cpp

@@ -1704,6 +1704,13 @@ public:
         return expr.value ? decomp.v_true : decomp.v_false;
     }
 
+    Id operator()(const ExprGprEqual& expr) {
+        const Id target = decomp.Constant(decomp.t_uint, expr.value);
+        const Id gpr = decomp.BitcastTo<Type::Uint>(
+            decomp.Emit(decomp.OpLoad(decomp.t_float, decomp.registers.at(expr.gpr))));
+        return decomp.Emit(decomp.OpLogicalEqual(decomp.t_uint, gpr, target));
+    }
+
     Id Visit(const Expr& node) {
         return std::visit(*this, *node);
     }

src/video_core/shader/ast.cpp

@@ -228,6 +228,10 @@ public:
         inner += expr.value ? "true" : "false";
     }
 
+    void operator()(const ExprGprEqual& expr) {
+        inner += "( gpr_" + std::to_string(expr.gpr) + " == " + std::to_string(expr.value) + ')';
+    }
+
     const std::string& GetResult() const {
         return inner;
     }

src/video_core/shader/const_buffer_locker.cpp

@@ -0,0 +1,110 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <algorithm>
+#include <memory>
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/shader/const_buffer_locker.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Engines::SamplerDescriptor;
+
+ConstBufferLocker::ConstBufferLocker(Tegra::Engines::ShaderType shader_stage)
+    : stage{shader_stage} {}
+
+ConstBufferLocker::ConstBufferLocker(Tegra::Engines::ShaderType shader_stage,
+                                     Tegra::Engines::ConstBufferEngineInterface& engine)
+    : stage{shader_stage}, engine{&engine} {}
+
+ConstBufferLocker::~ConstBufferLocker() = default;
+
+std::optional<u32> ConstBufferLocker::ObtainKey(u32 buffer, u32 offset) {
+    const std::pair<u32, u32> key = {buffer, offset};
+    const auto iter = keys.find(key);
+    if (iter != keys.end()) {
+        return iter->second;
+    }
+    if (!engine) {
+        return std::nullopt;
+    }
+    const u32 value = engine->AccessConstBuffer32(stage, buffer, offset);
+    keys.emplace(key, value);
+    return value;
+}
+
+std::optional<SamplerDescriptor> ConstBufferLocker::ObtainBoundSampler(u32 offset) {
+    const u32 key = offset;
+    const auto iter = bound_samplers.find(key);
+    if (iter != bound_samplers.end()) {
+        return iter->second;
+    }
+    if (!engine) {
+        return std::nullopt;
+    }
+    const SamplerDescriptor value = engine->AccessBoundSampler(stage, offset);
+    bound_samplers.emplace(key, value);
+    return value;
+}
+
+std::optional<Tegra::Engines::SamplerDescriptor> ConstBufferLocker::ObtainBindlessSampler(
+    u32 buffer, u32 offset) {
+    const std::pair key = {buffer, offset};
+    const auto iter = bindless_samplers.find(key);
+    if (iter != bindless_samplers.end()) {
+        return iter->second;
+    }
+    if (!engine) {
+        return std::nullopt;
+    }
+    const SamplerDescriptor value = engine->AccessBindlessSampler(stage, buffer, offset);
+    bindless_samplers.emplace(key, value);
+    return value;
+}
+
+void ConstBufferLocker::InsertKey(u32 buffer, u32 offset, u32 value) {
+    keys.insert_or_assign({buffer, offset}, value);
+}
+
+void ConstBufferLocker::InsertBoundSampler(u32 offset, SamplerDescriptor sampler) {
+    bound_samplers.insert_or_assign(offset, sampler);
+}
+
+void ConstBufferLocker::InsertBindlessSampler(u32 buffer, u32 offset, SamplerDescriptor sampler) {
+    bindless_samplers.insert_or_assign({buffer, offset}, sampler);
+}
+
+bool ConstBufferLocker::IsConsistent() const {
+    if (!engine) {
+        return false;
+    }
+    return std::all_of(keys.begin(), keys.end(),
+                       [this](const auto& pair) {
+                           const auto [cbuf, offset] = pair.first;
+                           const auto value = pair.second;
+                           return value == engine->AccessConstBuffer32(stage, cbuf, offset);
+                       }) &&
+           std::all_of(bound_samplers.begin(), bound_samplers.end(),
+                       [this](const auto& sampler) {
+                           const auto [key, value] = sampler;
+                           return value == engine->AccessBoundSampler(stage, key);
+                       }) &&
+           std::all_of(bindless_samplers.begin(), bindless_samplers.end(),
+                       [this](const auto& sampler) {
+                           const auto [cbuf, offset] = sampler.first;
+                           const auto value = sampler.second;
+                           return value == engine->AccessBindlessSampler(stage, cbuf, offset);
+                       });
+}
+
+bool ConstBufferLocker::HasEqualKeys(const ConstBufferLocker& rhs) const {
+    return keys == rhs.keys && bound_samplers == rhs.bound_samplers &&
+           bindless_samplers == rhs.bindless_samplers;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/const_buffer_locker.h

@@ -0,0 +1,80 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <unordered_map>
+#include "common/common_types.h"
+#include "common/hash.h"
+#include "video_core/engines/const_buffer_engine_interface.h"
+
+namespace VideoCommon::Shader {
+
+using KeyMap = std::unordered_map<std::pair<u32, u32>, u32, Common::PairHash>;
+using BoundSamplerMap = std::unordered_map<u32, Tegra::Engines::SamplerDescriptor>;
+using BindlessSamplerMap =
+    std::unordered_map<std::pair<u32, u32>, Tegra::Engines::SamplerDescriptor, Common::PairHash>;
+
+/**
+ * The ConstBufferLocker is a class use to interface the 3D and compute engines with the shader
+ * compiler. with it, the shader can obtain required data from GPU state and store it for disk
+ * shader compilation.
+ **/
+class ConstBufferLocker {
+public:
+    explicit ConstBufferLocker(Tegra::Engines::ShaderType shader_stage);
+
+    explicit ConstBufferLocker(Tegra::Engines::ShaderType shader_stage,
+                               Tegra::Engines::ConstBufferEngineInterface& engine);
+
+    ~ConstBufferLocker();
+
+    /// Retrieves a key from the locker, if it's registered, it will give the registered value, if
+    /// not it will obtain it from maxwell3d and register it.
+    std::optional<u32> ObtainKey(u32 buffer, u32 offset);
+
+    std::optional<Tegra::Engines::SamplerDescriptor> ObtainBoundSampler(u32 offset);
+
+    std::optional<Tegra::Engines::SamplerDescriptor> ObtainBindlessSampler(u32 buffer, u32 offset);
+
+    /// Inserts a key.
+    void InsertKey(u32 buffer, u32 offset, u32 value);
+
+    /// Inserts a bound sampler key.
+    void InsertBoundSampler(u32 offset, Tegra::Engines::SamplerDescriptor sampler);
+
+    /// Inserts a bindless sampler key.
+    void InsertBindlessSampler(u32 buffer, u32 offset, Tegra::Engines::SamplerDescriptor sampler);
+
+    /// Checks keys and samplers against engine's current const buffers. Returns true if they are
+    /// the same value, false otherwise;
+    bool IsConsistent() const;
+
+    /// Returns true if the keys are equal to the other ones in the locker.
+    bool HasEqualKeys(const ConstBufferLocker& rhs) const;
+
+    /// Gives an getter to the const buffer keys in the database.
+    const KeyMap& GetKeys() const {
+        return keys;
+    }
+
+    /// Gets samplers database.
+    const BoundSamplerMap& GetBoundSamplers() const {
+        return bound_samplers;
+    }
+
+    /// Gets bindless samplers database.
+    const BindlessSamplerMap& GetBindlessSamplers() const {
+        return bindless_samplers;
+    }
+
+private:
+    const Tegra::Engines::ShaderType stage;
+    Tegra::Engines::ConstBufferEngineInterface* engine = nullptr;
+    KeyMap keys;
+    BoundSamplerMap bound_samplers;
+    BindlessSamplerMap bindless_samplers;
+};
+
+} // namespace VideoCommon::Shader

src/video_core/shader/control_flow.cpp

@@ -35,14 +35,20 @@ struct BlockStack {
     std::stack<u32> pbk_stack{};
 };
 
-struct BlockBranchInfo {
-    Condition condition{};
-    s32 address{exit_branch};
-    bool kill{};
-    bool is_sync{};
-    bool is_brk{};
-    bool ignore{};
-};
+template <typename T, typename... Args>
+BlockBranchInfo MakeBranchInfo(Args&&... args) {
+    static_assert(std::is_convertible_v<T, BranchData>);
+    return std::make_shared<BranchData>(T(std::forward<Args>(args)...));
+}
+
+bool BlockBranchIsIgnored(BlockBranchInfo first) {
+    bool ignore = false;
+    if (std::holds_alternative<SingleBranch>(*first)) {
+        const auto branch = std::get_if<SingleBranch>(first.get());
+        ignore = branch->ignore;
+    }
+    return ignore;
+}
 
 struct BlockInfo {
     u32 start{};
@@ -56,10 +62,11 @@ struct BlockInfo {
 };
 
 struct CFGRebuildState {
-    explicit CFGRebuildState(const ProgramCode& program_code, const std::size_t program_size,
-                             const u32 start)
-        : start{start}, program_code{program_code}, program_size{program_size} {}
+    explicit CFGRebuildState(const ProgramCode& program_code, u32 start, ConstBufferLocker& locker)
+        : program_code{program_code}, start{start}, locker{locker} {}
 
+    const ProgramCode& program_code;
+    ConstBufferLocker& locker;
     u32 start{};
     std::vector<BlockInfo> block_info{};
     std::list<u32> inspect_queries{};
@@ -69,8 +76,6 @@ struct CFGRebuildState {
     std::map<u32, u32> ssy_labels{};
     std::map<u32, u32> pbk_labels{};
     std::unordered_map<u32, BlockStack> stacks{};
-    const ProgramCode& program_code;
-    const std::size_t program_size;
     ASTManager* manager;
 };
 
@@ -124,10 +129,116 @@ enum class ParseResult : u32 {
     AbnormalFlow,
 };
 
+struct BranchIndirectInfo {
+    u32 buffer{};
+    u32 offset{};
+    u32 entries{};
+    s32 relative_position{};
+};
+
+std::optional<BranchIndirectInfo> TrackBranchIndirectInfo(const CFGRebuildState& state,
+                                                          u32 start_address, u32 current_position) {
+    const u32 shader_start = state.start;
+    u32 pos = current_position;
+    BranchIndirectInfo result{};
+    u64 track_register = 0;
+
+    // Step 0 Get BRX Info
+    const Instruction instr = {state.program_code[pos]};
+    const auto opcode = OpCode::Decode(instr);
+    if (opcode->get().GetId() != OpCode::Id::BRX) {
+        return std::nullopt;
+    }
+    if (instr.brx.constant_buffer != 0) {
+        return std::nullopt;
+    }
+    track_register = instr.gpr8.Value();
+    result.relative_position = instr.brx.GetBranchExtend();
+    pos--;
+    bool found_track = false;
+
+    // Step 1 Track LDC
+    while (pos >= shader_start) {
+        if (IsSchedInstruction(pos, shader_start)) {
+            pos--;
+            continue;
+        }
+        const Instruction instr = {state.program_code[pos]};
+        const auto opcode = OpCode::Decode(instr);
+        if (opcode->get().GetId() == OpCode::Id::LD_C) {
+            if (instr.gpr0.Value() == track_register &&
+                instr.ld_c.type.Value() == Tegra::Shader::UniformType::Single) {
+                result.buffer = instr.cbuf36.index;
+                result.offset = instr.cbuf36.GetOffset();
+                track_register = instr.gpr8.Value();
+                pos--;
+                found_track = true;
+                break;
+            }
+        }
+        pos--;
+    }
+
+    if (!found_track) {
+        return std::nullopt;
+    }
+    found_track = false;
+
+    // Step 2 Track SHL
+    while (pos >= shader_start) {
+        if (IsSchedInstruction(pos, shader_start)) {
+            pos--;
+            continue;
+        }
+        const Instruction instr = {state.program_code[pos]};
+        const auto opcode = OpCode::Decode(instr);
+        if (opcode->get().GetId() == OpCode::Id::SHL_IMM) {
+            if (instr.gpr0.Value() == track_register) {
+                track_register = instr.gpr8.Value();
+                pos--;
+                found_track = true;
+                break;
+            }
+        }
+        pos--;
+    }
+
+    if (!found_track) {
+        return std::nullopt;
+    }
+    found_track = false;
+
+    // Step 3 Track IMNMX
+    while (pos >= shader_start) {
+        if (IsSchedInstruction(pos, shader_start)) {
+            pos--;
+            continue;
+        }
+        const Instruction instr = {state.program_code[pos]};
+        const auto opcode = OpCode::Decode(instr);
+        if (opcode->get().GetId() == OpCode::Id::IMNMX_IMM) {
+            if (instr.gpr0.Value() == track_register) {
+                track_register = instr.gpr8.Value();
+                result.entries = instr.alu.GetSignedImm20_20() + 1;
+                pos--;
+                found_track = true;
+                break;
+            }
+        }
+        pos--;
+    }
+
+    if (!found_track) {
+        return std::nullopt;
+    }
+    return {result};
+}
+
 std::pair<ParseResult, ParseInfo> ParseCode(CFGRebuildState& state, u32 address) {
     u32 offset = static_cast<u32>(address);
-    const u32 end_address = static_cast<u32>(state.program_size / sizeof(Instruction));
+    const u32 end_address = static_cast<u32>(state.program_code.size());
     ParseInfo parse_info{};
+    SingleBranch single_branch{};
 
     const auto insert_label = [](CFGRebuildState& state, u32 address) {
         const auto pair = state.labels.emplace(address);
@@ -140,13 +251,14 @@ std::pair<ParseResult, ParseInfo> ParseCode(CFGRebuildState& state, u32 address)
         if (offset >= end_address) {
             // ASSERT_OR_EXECUTE can't be used, as it ignores the break
             ASSERT_MSG(false, "Shader passed the current limit!");
-            parse_info.branch_info.address = exit_branch;
-            parse_info.branch_info.ignore = false;
+
+            single_branch.address = exit_branch;
+            single_branch.ignore = false;
             break;
         }
         if (state.registered.count(offset) != 0) {
-            parse_info.branch_info.address = offset;
-            parse_info.branch_info.ignore = true;
+            single_branch.address = offset;
+            single_branch.ignore = true;
             break;
         }
         if (IsSchedInstruction(offset, state.start)) {
@@ -163,24 +275,26 @@ std::pair<ParseResult, ParseInfo> ParseCode(CFGRebuildState& state, u32 address)
         switch (opcode->get().GetId()) {
         case OpCode::Id::EXIT: {
             const auto pred_index = static_cast<u32>(instr.pred.pred_index);
-            parse_info.branch_info.condition.predicate =
-                GetPredicate(pred_index, instr.negate_pred != 0);
-            if (parse_info.branch_info.condition.predicate == Pred::NeverExecute) {
+            single_branch.condition.predicate = GetPredicate(pred_index, instr.negate_pred != 0);
+            if (single_branch.condition.predicate == Pred::NeverExecute) {
                 offset++;
                 continue;
             }
             const ConditionCode cc = instr.flow_condition_code;
-            parse_info.branch_info.condition.cc = cc;
+            single_branch.condition.cc = cc;
             if (cc == ConditionCode::F) {
                 offset++;
                 continue;
             }
-            parse_info.branch_info.address = exit_branch;
-            parse_info.branch_info.kill = false;
-            parse_info.branch_info.is_sync = false;
-            parse_info.branch_info.is_brk = false;
-            parse_info.branch_info.ignore = false;
+            single_branch.address = exit_branch;
+            single_branch.kill = false;
+            single_branch.is_sync = false;
+            single_branch.is_brk = false;
+            single_branch.ignore = false;
             parse_info.end_address = offset;
+            parse_info.branch_info = MakeBranchInfo<SingleBranch>(
+                single_branch.condition, single_branch.address, single_branch.kill,
+                single_branch.is_sync, single_branch.is_brk, single_branch.ignore);
 
             return {ParseResult::ControlCaught, parse_info};
         }
@@ -189,99 +303,107 @@ std::pair<ParseResult, ParseInfo> ParseCode(CFGRebuildState& state, u32 address)
                 return {ParseResult::AbnormalFlow, parse_info};
             }
             const auto pred_index = static_cast<u32>(instr.pred.pred_index);
-            parse_info.branch_info.condition.predicate =
-                GetPredicate(pred_index, instr.negate_pred != 0);
-            if (parse_info.branch_info.condition.predicate == Pred::NeverExecute) {
+            single_branch.condition.predicate = GetPredicate(pred_index, instr.negate_pred != 0);
+            if (single_branch.condition.predicate == Pred::NeverExecute) {
                 offset++;
                 continue;
             }
             const ConditionCode cc = instr.flow_condition_code;
-            parse_info.branch_info.condition.cc = cc;
+            single_branch.condition.cc = cc;
             if (cc == ConditionCode::F) {
                 offset++;
                 continue;
             }
             const u32 branch_offset = offset + instr.bra.GetBranchTarget();
             if (branch_offset == 0) {
-                parse_info.branch_info.address = exit_branch;
+                single_branch.address = exit_branch;
             } else {
-                parse_info.branch_info.address = branch_offset;
+                single_branch.address = branch_offset;
             }
             insert_label(state, branch_offset);
-            parse_info.branch_info.kill = false;
-            parse_info.branch_info.is_sync = false;
-            parse_info.branch_info.is_brk = false;
-            parse_info.branch_info.ignore = false;
+            single_branch.kill = false;
+            single_branch.is_sync = false;
+            single_branch.is_brk = false;
+            single_branch.ignore = false;
             parse_info.end_address = offset;
+            parse_info.branch_info = MakeBranchInfo<SingleBranch>(
+                single_branch.condition, single_branch.address, single_branch.kill,
+                single_branch.is_sync, single_branch.is_brk, single_branch.ignore);
 
             return {ParseResult::ControlCaught, parse_info};
         }
         case OpCode::Id::SYNC: {
             const auto pred_index = static_cast<u32>(instr.pred.pred_index);
-            parse_info.branch_info.condition.predicate =
-                GetPredicate(pred_index, instr.negate_pred != 0);
-            if (parse_info.branch_info.condition.predicate == Pred::NeverExecute) {
+            single_branch.condition.predicate = GetPredicate(pred_index, instr.negate_pred != 0);
+            if (single_branch.condition.predicate == Pred::NeverExecute) {
                 offset++;
                 continue;
             }
             const ConditionCode cc = instr.flow_condition_code;
-            parse_info.branch_info.condition.cc = cc;
+            single_branch.condition.cc = cc;
             if (cc == ConditionCode::F) {
                 offset++;
                 continue;
             }
-            parse_info.branch_info.address = unassigned_branch;
-            parse_info.branch_info.kill = false;
-            parse_info.branch_info.is_sync = true;
-            parse_info.branch_info.is_brk = false;
-            parse_info.branch_info.ignore = false;
+            single_branch.address = unassigned_branch;
+            single_branch.kill = false;
+            single_branch.is_sync = true;
+            single_branch.is_brk = false;
+            single_branch.ignore = false;
             parse_info.end_address = offset;
+            parse_info.branch_info = MakeBranchInfo<SingleBranch>(
+                single_branch.condition, single_branch.address, single_branch.kill,
+                single_branch.is_sync, single_branch.is_brk, single_branch.ignore);
 
             return {ParseResult::ControlCaught, parse_info};
         }
         case OpCode::Id::BRK: {
             const auto pred_index = static_cast<u32>(instr.pred.pred_index);
-            parse_info.branch_info.condition.predicate =
-                GetPredicate(pred_index, instr.negate_pred != 0);
-            if (parse_info.branch_info.condition.predicate == Pred::NeverExecute) {
+            single_branch.condition.predicate = GetPredicate(pred_index, instr.negate_pred != 0);
+            if (single_branch.condition.predicate == Pred::NeverExecute) {
                 offset++;
                 continue;
             }
             const ConditionCode cc = instr.flow_condition_code;
-            parse_info.branch_info.condition.cc = cc;
+            single_branch.condition.cc = cc;
             if (cc == ConditionCode::F) {
                 offset++;
                 continue;
             }
-            parse_info.branch_info.address = unassigned_branch;
-            parse_info.branch_info.kill = false;
-            parse_info.branch_info.is_sync = false;
-            parse_info.branch_info.is_brk = true;
-            parse_info.branch_info.ignore = false;
+            single_branch.address = unassigned_branch;
+            single_branch.kill = false;
+            single_branch.is_sync = false;
+            single_branch.is_brk = true;
+            single_branch.ignore = false;
             parse_info.end_address = offset;
+            parse_info.branch_info = MakeBranchInfo<SingleBranch>(
+                single_branch.condition, single_branch.address, single_branch.kill,
+                single_branch.is_sync, single_branch.is_brk, single_branch.ignore);
 
             return {ParseResult::ControlCaught, parse_info};
         }
         case OpCode::Id::KIL: {
             const auto pred_index = static_cast<u32>(instr.pred.pred_index);
-            parse_info.branch_info.condition.predicate =
-                GetPredicate(pred_index, instr.negate_pred != 0);
-            if (parse_info.branch_info.condition.predicate == Pred::NeverExecute) {
+            single_branch.condition.predicate = GetPredicate(pred_index, instr.negate_pred != 0);
+            if (single_branch.condition.predicate == Pred::NeverExecute) {
                 offset++;
                 continue;
             }
             const ConditionCode cc = instr.flow_condition_code;
-            parse_info.branch_info.condition.cc = cc;
+            single_branch.condition.cc = cc;
             if (cc == ConditionCode::F) {
                 offset++;
                 continue;
             }
-            parse_info.branch_info.address = exit_branch;
-            parse_info.branch_info.kill = true;
-            parse_info.branch_info.is_sync = false;
-            parse_info.branch_info.is_brk = false;
-            parse_info.branch_info.ignore = false;
+            single_branch.address = exit_branch;
+            single_branch.kill = true;
+            single_branch.is_sync = false;
+            single_branch.is_brk = false;
+            single_branch.ignore = false;
             parse_info.end_address = offset;
+            parse_info.branch_info = MakeBranchInfo<SingleBranch>(
+                single_branch.condition, single_branch.address, single_branch.kill,
+                single_branch.is_sync, single_branch.is_brk, single_branch.ignore);
 
             return {ParseResult::ControlCaught, parse_info};
         }
@@ -298,6 +420,29 @@ std::pair<ParseResult, ParseInfo> ParseCode(CFGRebuildState& state, u32 address)
             break;
         }
         case OpCode::Id::BRX: {
+            auto tmp = TrackBranchIndirectInfo(state, address, offset);
+            if (tmp) {
+                auto result = *tmp;
+                std::vector<CaseBranch> branches{};
+                s32 pc_target = offset + result.relative_position;
+                for (u32 i = 0; i < result.entries; i++) {
+                    auto k = state.locker.ObtainKey(result.buffer, result.offset + i * 4);
+                    if (!k) {
+                        return {ParseResult::AbnormalFlow, parse_info};
+                    }
+                    u32 value = *k;
+                    u32 target = static_cast<u32>((value >> 3) + pc_target);
+                    insert_label(state, target);
+                    branches.emplace_back(value, target);
+                }
+                parse_info.end_address = offset;
+                parse_info.branch_info = MakeBranchInfo<MultiBranch>(
+                    static_cast<u32>(instr.gpr8.Value()), std::move(branches));
+
+                return {ParseResult::ControlCaught, parse_info};
+            } else {
+                LOG_WARNING(HW_GPU, "BRX Track Unsuccesful");
+            }
             return {ParseResult::AbnormalFlow, parse_info};
         }
         default:
@@ -306,10 +451,13 @@ std::pair<ParseResult, ParseInfo> ParseCode(CFGRebuildState& state, u32 address)
 
         offset++;
     }
-    parse_info.branch_info.kill = false;
-    parse_info.branch_info.is_sync = false;
-    parse_info.branch_info.is_brk = false;
+    single_branch.kill = false;
+    single_branch.is_sync = false;
+    single_branch.is_brk = false;
     parse_info.end_address = offset - 1;
+    parse_info.branch_info = MakeBranchInfo<SingleBranch>(
+        single_branch.condition, single_branch.address, single_branch.kill, single_branch.is_sync,
+        single_branch.is_brk, single_branch.ignore);
     return {ParseResult::BlockEnd, parse_info};
 }
 
@@ -333,9 +481,10 @@ bool TryInspectAddress(CFGRebuildState& state) {
         BlockInfo& current_block = state.block_info[block_index];
         current_block.end = address - 1;
         new_block.branch = current_block.branch;
-        BlockBranchInfo forward_branch{};
-        forward_branch.address = address;
-        forward_branch.ignore = true;
+        BlockBranchInfo forward_branch = MakeBranchInfo<SingleBranch>();
+        const auto branch = std::get_if<SingleBranch>(forward_branch.get());
+        branch->address = address;
+        branch->ignore = true;
         current_block.branch = forward_branch;
         return true;
     }
@@ -350,12 +499,15 @@ bool TryInspectAddress(CFGRebuildState& state) {
 
     BlockInfo& block_info = CreateBlockInfo(state, address, parse_info.end_address);
     block_info.branch = parse_info.branch_info;
-    if (parse_info.branch_info.condition.IsUnconditional()) {
+    if (std::holds_alternative<SingleBranch>(*block_info.branch)) {
+        const auto branch = std::get_if<SingleBranch>(block_info.branch.get());
+        if (branch->condition.IsUnconditional()) {
+            return true;
+        }
+        const u32 fallthrough_address = parse_info.end_address + 1;
+        state.inspect_queries.push_front(fallthrough_address);
         return true;
     }
-
-    const u32 fallthrough_address = parse_info.end_address + 1;
-    state.inspect_queries.push_front(fallthrough_address);
     return true;
 }
 
@@ -393,31 +545,42 @@ bool TryQuery(CFGRebuildState& state) {
     state.queries.pop_front();
     gather_labels(q2.ssy_stack, state.ssy_labels, block);
     gather_labels(q2.pbk_stack, state.pbk_labels, block);
-    if (!block.branch.condition.IsUnconditional()) {
-        q2.address = block.end + 1;
-        state.queries.push_back(q2);
-    }
+    if (std::holds_alternative<SingleBranch>(*block.branch)) {
+        const auto branch = std::get_if<SingleBranch>(block.branch.get());
+        if (!branch->condition.IsUnconditional()) {
+            q2.address = block.end + 1;
+            state.queries.push_back(q2);
+        }
 
-    Query conditional_query{q2};
-    if (block.branch.is_sync) {
-        if (block.branch.address == unassigned_branch) {
-            block.branch.address = conditional_query.ssy_stack.top();
+        Query conditional_query{q2};
+        if (branch->is_sync) {
+            if (branch->address == unassigned_branch) {
+                branch->address = conditional_query.ssy_stack.top();
+            }
+            conditional_query.ssy_stack.pop();
         }
-        conditional_query.ssy_stack.pop();
-    }
-    if (block.branch.is_brk) {
-        if (block.branch.address == unassigned_branch) {
-            block.branch.address = conditional_query.pbk_stack.top();
+        if (branch->is_brk) {
+            if (branch->address == unassigned_branch) {
+                branch->address = conditional_query.pbk_stack.top();
+            }
+            conditional_query.pbk_stack.pop();
         }
-        conditional_query.pbk_stack.pop();
+        conditional_query.address = branch->address;
+        state.queries.push_back(std::move(conditional_query));
+        return true;
+    }
+    const auto multi_branch = std::get_if<MultiBranch>(block.branch.get());
+    for (const auto& branch_case : multi_branch->branches) {
+        Query conditional_query{q2};
+        conditional_query.address = branch_case.address;
+        state.queries.push_back(std::move(conditional_query));
     }
-    conditional_query.address = block.branch.address;
-    state.queries.push_back(std::move(conditional_query));
     return true;
 }
+
 } // Anonymous namespace
 
-void InsertBranch(ASTManager& mm, const BlockBranchInfo& branch) {
+void InsertBranch(ASTManager& mm, const BlockBranchInfo& branch_info) {
     const auto get_expr = ([&](const Condition& cond) -> Expr {
         Expr result{};
         if (cond.cc != ConditionCode::T) {
@@ -444,15 +607,24 @@ void InsertBranch(ASTManager& mm, const BlockBranchInfo& branch) {
         }
         return MakeExpr<ExprBoolean>(true);
     });
-    if (branch.address < 0) {
-        if (branch.kill) {
-            mm.InsertReturn(get_expr(branch.condition), true);
+    if (std::holds_alternative<SingleBranch>(*branch_info)) {
+        const auto branch = std::get_if<SingleBranch>(branch_info.get());
+        if (branch->address < 0) {
+            if (branch->kill) {
+                mm.InsertReturn(get_expr(branch->condition), true);
+                return;
+            }
+            mm.InsertReturn(get_expr(branch->condition), false);
             return;
         }
-        mm.InsertReturn(get_expr(branch.condition), false);
+        mm.InsertGoto(get_expr(branch->condition), branch->address);
         return;
     }
-    mm.InsertGoto(get_expr(branch.condition), branch.address);
+    const auto multi_branch = std::get_if<MultiBranch>(branch_info.get());
+    for (const auto& branch_case : multi_branch->branches) {
+        mm.InsertGoto(MakeExpr<ExprGprEqual>(multi_branch->gpr, branch_case.cmp_value),
+                      branch_case.address);
+    }
 }
 
 void DecompileShader(CFGRebuildState& state) {
@@ -464,25 +636,26 @@ void DecompileShader(CFGRebuildState& state) {
         if (state.labels.count(block.start) != 0) {
             state.manager->InsertLabel(block.start);
         }
-        u32 end = block.branch.ignore ? block.end + 1 : block.end;
+        const bool ignore = BlockBranchIsIgnored(block.branch);
+        u32 end = ignore ? block.end + 1 : block.end;
         state.manager->InsertBlock(block.start, end);
-        if (!block.branch.ignore) {
+        if (!ignore) {
             InsertBranch(*state.manager, block.branch);
         }
     }
     state.manager->Decompile();
 }
 
-std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
-                                                std::size_t program_size, u32 start_address,
-                                                const CompilerSettings& settings) {
+std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code, u32 start_address,
+                                                const CompilerSettings& settings,
+                                                ConstBufferLocker& locker) {
     auto result_out = std::make_unique<ShaderCharacteristics>();
     if (settings.depth == CompileDepth::BruteForce) {
         result_out->settings.depth = CompileDepth::BruteForce;
         return result_out;
     }
 
-    CFGRebuildState state{program_code, program_size, start_address};
+    CFGRebuildState state{program_code, start_address, locker};
     // Inspect Code and generate blocks
     state.labels.clear();
     state.labels.emplace(start_address);
@@ -547,11 +720,9 @@ std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
         ShaderBlock new_block{};
         new_block.start = block.start;
         new_block.end = block.end;
-        new_block.ignore_branch = block.branch.ignore;
+        new_block.ignore_branch = BlockBranchIsIgnored(block.branch);
         if (!new_block.ignore_branch) {
-            new_block.branch.cond = block.branch.condition;
-            new_block.branch.kills = block.branch.kill;
-            new_block.branch.address = block.branch.address;
+            new_block.branch = block.branch;
         }
         result_out->end = std::max(result_out->end, block.end);
         result_out->blocks.push_back(new_block);

src/video_core/shader/control_flow.h

@@ -7,6 +7,7 @@
 #include <list>
 #include <optional>
 #include <set>
+#include <variant>
 
 #include "video_core/engines/shader_bytecode.h"
 #include "video_core/shader/ast.h"
@@ -37,29 +38,61 @@ struct Condition {
     }
 };
 
+class SingleBranch {
+public:
+    SingleBranch() = default;
+    SingleBranch(Condition condition, s32 address, bool kill, bool is_sync, bool is_brk,
+                 bool ignore)
+        : condition{condition}, address{address}, kill{kill}, is_sync{is_sync}, is_brk{is_brk},
+          ignore{ignore} {}
+
+    bool operator==(const SingleBranch& b) const {
+        return std::tie(condition, address, kill, is_sync, is_brk, ignore) ==
+               std::tie(b.condition, b.address, b.kill, b.is_sync, b.is_brk, b.ignore);
+    }
+
+    bool operator!=(const SingleBranch& b) const {
+        return !operator==(b);
+    }
+
+    Condition condition{};
+    s32 address{exit_branch};
+    bool kill{};
+    bool is_sync{};
+    bool is_brk{};
+    bool ignore{};
+};
+
+struct CaseBranch {
+    CaseBranch(u32 cmp_value, u32 address) : cmp_value{cmp_value}, address{address} {}
+    u32 cmp_value;
+    u32 address;
+};
+
+class MultiBranch {
+public:
+    MultiBranch(u32 gpr, std::vector<CaseBranch>&& branches)
+        : gpr{gpr}, branches{std::move(branches)} {}
+
+    u32 gpr{};
+    std::vector<CaseBranch> branches{};
+};
+
+using BranchData = std::variant<SingleBranch, MultiBranch>;
+using BlockBranchInfo = std::shared_ptr<BranchData>;
+
+bool BlockBranchInfoAreEqual(BlockBranchInfo first, BlockBranchInfo second);
+
 struct ShaderBlock {
-    struct Branch {
-        Condition cond{};
-        bool kills{};
-        s32 address{};
-
-        bool operator==(const Branch& b) const {
-            return std::tie(cond, kills, address) == std::tie(b.cond, b.kills, b.address);
-        }
-
-        bool operator!=(const Branch& b) const {
-            return !operator==(b);
-        }
-    };
-
     u32 start{};
     u32 end{};
     bool ignore_branch{};
-    Branch branch{};
+    BlockBranchInfo branch{};
 
     bool operator==(const ShaderBlock& sb) const {
-        return std::tie(start, end, ignore_branch, branch) ==
-               std::tie(sb.start, sb.end, sb.ignore_branch, sb.branch);
+        return std::tie(start, end, ignore_branch) ==
+                   std::tie(sb.start, sb.end, sb.ignore_branch) &&
+               BlockBranchInfoAreEqual(branch, sb.branch);
     }
 
     bool operator!=(const ShaderBlock& sb) const {
@@ -76,8 +109,8 @@ struct ShaderCharacteristics {
     CompilerSettings settings{};
 };
 
-std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code,
-                                                std::size_t program_size, u32 start_address,
-                                                const CompilerSettings& settings);
+std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code, u32 start_address,
+                                                const CompilerSettings& settings,
+                                                ConstBufferLocker& locker);
 
 } // namespace VideoCommon::Shader

src/video_core/shader/decode.cpp

@@ -33,7 +33,7 @@ constexpr bool IsSchedInstruction(u32 offset, u32 main_offset) {
     return (absolute_offset % SchedPeriod) == 0;
 }
 
-} // namespace
+} // Anonymous namespace
 
 class ASTDecoder {
 public:
@@ -102,7 +102,7 @@ void ShaderIR::Decode() {
     std::memcpy(&header, program_code.data(), sizeof(Tegra::Shader::Header));
 
     decompiled = false;
-    auto info = ScanFlow(program_code, program_size, main_offset, settings);
+    auto info = ScanFlow(program_code, main_offset, settings, locker);
     auto& shader_info = *info;
     coverage_begin = shader_info.start;
     coverage_end = shader_info.end;
@@ -155,7 +155,7 @@ void ShaderIR::Decode() {
         [[fallthrough]];
     case CompileDepth::BruteForce: {
         coverage_begin = main_offset;
-        const u32 shader_end = static_cast<u32>(program_size / sizeof(u64));
+        const u32 shader_end = program_code.size();
         coverage_end = shader_end;
         for (u32 label = main_offset; label < shader_end; label++) {
             basic_blocks.insert({label, DecodeRange(label, label + 1)});
@@ -198,24 +198,39 @@ void ShaderIR::InsertControlFlow(NodeBlock& bb, const ShaderBlock& block) {
         }
         return result;
     };
-    if (block.branch.address < 0) {
-        if (block.branch.kills) {
-            Node n = Operation(OperationCode::Discard);
-            n = apply_conditions(block.branch.cond, n);
+    if (std::holds_alternative<SingleBranch>(*block.branch)) {
+        auto branch = std::get_if<SingleBranch>(block.branch.get());
+        if (branch->address < 0) {
+            if (branch->kill) {
+                Node n = Operation(OperationCode::Discard);
+                n = apply_conditions(branch->condition, n);
+                bb.push_back(n);
+                global_code.push_back(n);
+                return;
+            }
+            Node n = Operation(OperationCode::Exit);
+            n = apply_conditions(branch->condition, n);
             bb.push_back(n);
             global_code.push_back(n);
             return;
         }
-        Node n = Operation(OperationCode::Exit);
-        n = apply_conditions(block.branch.cond, n);
+        Node n = Operation(OperationCode::Branch, Immediate(branch->address));
+        n = apply_conditions(branch->condition, n);
         bb.push_back(n);
         global_code.push_back(n);
         return;
     }
-    Node n = Operation(OperationCode::Branch, Immediate(block.branch.address));
-    n = apply_conditions(block.branch.cond, n);
-    bb.push_back(n);
-    global_code.push_back(n);
+    auto multi_branch = std::get_if<MultiBranch>(block.branch.get());
+    Node op_a = GetRegister(multi_branch->gpr);
+    for (auto& branch_case : multi_branch->branches) {
+        Node n = Operation(OperationCode::Branch, Immediate(branch_case.address));
+        Node op_b = Immediate(branch_case.cmp_value);
+        Node condition =
+            GetPredicateComparisonInteger(Tegra::Shader::PredCondition::Equal, false, op_a, op_b);
+        auto result = Conditional(condition, {n});
+        bb.push_back(result);
+        global_code.push_back(result);
+    }
 }
 
 u32 ShaderIR::DecodeInstr(NodeBlock& bb, u32 pc) {

src/video_core/shader/decode/texture.cpp

@@ -141,7 +141,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
         const Node component = Immediate(static_cast<u32>(instr.tld4s.component));
 
         const auto& sampler =
-            GetSampler(instr.sampler, TextureType::Texture2D, false, depth_compare);
+            GetSampler(instr.sampler, {{TextureType::Texture2D, false, depth_compare}});
 
         Node4 values;
         for (u32 element = 0; element < values.size(); ++element) {
@@ -150,7 +150,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
             values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
         }
 
-        WriteTexsInstructionFloat(bb, instr, values);
+        WriteTexsInstructionFloat(bb, instr, values, true);
         break;
     }
     case OpCode::Id::TXQ_B:
@@ -165,10 +165,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
         // Sadly, not all texture instructions specify the type of texture their sampler
         // uses. This must be fixed at a later instance.
         const auto& sampler =
-            is_bindless
-                ? GetBindlessSampler(instr.gpr8, Tegra::Shader::TextureType::Texture2D, false,
-                                     false)
-                : GetSampler(instr.sampler, Tegra::Shader::TextureType::Texture2D, false, false);
+            is_bindless ? GetBindlessSampler(instr.gpr8, {}) : GetSampler(instr.sampler, {});
 
         u32 indexer = 0;
         switch (instr.txq.query_type) {
@@ -207,9 +204,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
 
         auto texture_type = instr.tmml.texture_type.Value();
         const bool is_array = instr.tmml.array != 0;
-        const auto& sampler = is_bindless
-                                  ? GetBindlessSampler(instr.gpr20, texture_type, is_array, false)
-                                  : GetSampler(instr.sampler, texture_type, is_array, false);
+        const auto& sampler =
+            is_bindless ? GetBindlessSampler(instr.gpr20, {{texture_type, is_array, false}})
+                        : GetSampler(instr.sampler, {{texture_type, is_array, false}});
 
         std::vector<Node> coords;
 
@@ -285,10 +282,30 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
     return pc;
 }
 
-const Sampler& ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler, TextureType type,
-                                    bool is_array, bool is_shadow) {
+const Sampler& ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler,
+                                    std::optional<SamplerInfo> sampler_info) {
     const auto offset = static_cast<std::size_t>(sampler.index.Value());
 
+    Tegra::Shader::TextureType type;
+    bool is_array;
+    bool is_shadow;
+    if (sampler_info) {
+        type = sampler_info->type;
+        is_array = sampler_info->is_array;
+        is_shadow = sampler_info->is_shadow;
+    } else {
+        auto sampler = locker.ObtainBoundSampler(offset);
+        if (sampler) {
+            type = sampler->texture_type.Value();
+            is_array = sampler->is_array.Value() != 0;
+            is_shadow = sampler->is_shadow.Value() != 0;
+        } else {
+            type = Tegra::Shader::TextureType::Texture2D;
+            is_array = false;
+            is_shadow = false;
+        }
+    }
+
     // If this sampler has already been used, return the existing mapping.
     const auto itr =
         std::find_if(used_samplers.begin(), used_samplers.end(),
@@ -305,13 +322,32 @@ const Sampler& ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler, Textu
     return *used_samplers.emplace(entry).first;
 }
 
-const Sampler& ShaderIR::GetBindlessSampler(const Tegra::Shader::Register& reg, TextureType type,
-                                            bool is_array, bool is_shadow) {
+const Sampler& ShaderIR::GetBindlessSampler(const Tegra::Shader::Register& reg,
+                                            std::optional<SamplerInfo> sampler_info) {
     const Node sampler_register = GetRegister(reg);
     const auto [base_sampler, cbuf_index, cbuf_offset] =
         TrackCbuf(sampler_register, global_code, static_cast<s64>(global_code.size()));
     ASSERT(base_sampler != nullptr);
     const auto cbuf_key = (static_cast<u64>(cbuf_index) << 32) | static_cast<u64>(cbuf_offset);
+    Tegra::Shader::TextureType type;
+    bool is_array;
+    bool is_shadow;
+    if (sampler_info) {
+        type = sampler_info->type;
+        is_array = sampler_info->is_array;
+        is_shadow = sampler_info->is_shadow;
+    } else {
+        auto sampler = locker.ObtainBindlessSampler(cbuf_index, cbuf_offset);
+        if (sampler) {
+            type = sampler->texture_type.Value();
+            is_array = sampler->is_array.Value() != 0;
+            is_shadow = sampler->is_shadow.Value() != 0;
+        } else {
+            type = Tegra::Shader::TextureType::Texture2D;
+            is_array = false;
+            is_shadow = false;
+        }
+    }
 
     // If this sampler has already been used, return the existing mapping.
     const auto itr =
@@ -344,14 +380,14 @@ void ShaderIR::WriteTexInstructionFloat(NodeBlock& bb, Instruction instr, const
     }
 }
 
-void ShaderIR::WriteTexsInstructionFloat(NodeBlock& bb, Instruction instr,
-                                         const Node4& components) {
+void ShaderIR::WriteTexsInstructionFloat(NodeBlock& bb, Instruction instr, const Node4& components,
+                                         bool ignore_mask) {
     // TEXS has two destination registers and a swizzle. The first two elements in the swizzle
     // go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1
 
     u32 dest_elem = 0;
     for (u32 component = 0; component < 4; ++component) {
-        if (!instr.texs.IsComponentEnabled(component))
+        if (!instr.texs.IsComponentEnabled(component) && !ignore_mask)
             continue;
         SetTemporary(bb, dest_elem++, components[component]);
     }
@@ -411,9 +447,9 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
                              (texture_type == TextureType::TextureCube && is_array && is_shadow),
                          "This method is not supported.");
 
-    const auto& sampler = is_bindless
-                              ? GetBindlessSampler(*bindless_reg, texture_type, is_array, is_shadow)
-                              : GetSampler(instr.sampler, texture_type, is_array, is_shadow);
+    const auto& sampler =
+        is_bindless ? GetBindlessSampler(*bindless_reg, {{texture_type, is_array, is_shadow}})
+                    : GetSampler(instr.sampler, {{texture_type, is_array, is_shadow}});
 
     const bool lod_needed = process_mode == TextureProcessMode::LZ ||
                             process_mode == TextureProcessMode::LL ||
@@ -577,7 +613,7 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
         dc = GetRegister(parameter_register++);
     }
 
-    const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, depth_compare);
+    const auto& sampler = GetSampler(instr.sampler, {{texture_type, is_array, depth_compare}});
 
     Node4 values;
     for (u32 element = 0; element < values.size(); ++element) {
@@ -610,7 +646,7 @@ Node4 ShaderIR::GetTldCode(Tegra::Shader::Instruction instr) {
     // const Node aoffi_register{is_aoffi ? GetRegister(gpr20_cursor++) : nullptr};
     // const Node multisample{is_multisample ? GetRegister(gpr20_cursor++) : nullptr};
 
-    const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, false);
+    const auto& sampler = GetSampler(instr.sampler, {{texture_type, is_array, false}});
 
     Node4 values;
     for (u32 element = 0; element < values.size(); ++element) {
@@ -646,7 +682,7 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
     // When lod is used always is in gpr20
     const Node lod = lod_enabled ? GetRegister(instr.gpr20) : Immediate(0);
 
-    const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, false);
+    const auto& sampler = GetSampler(instr.sampler, {{texture_type, is_array, false}});
 
     Node4 values;
     for (u32 element = 0; element < values.size(); ++element) {

src/video_core/shader/expr.h

@@ -17,13 +17,14 @@ using Tegra::Shader::Pred;
 class ExprAnd;
 class ExprBoolean;
 class ExprCondCode;
+class ExprGprEqual;
 class ExprNot;
 class ExprOr;
 class ExprPredicate;
 class ExprVar;
 
-using ExprData =
-    std::variant<ExprVar, ExprCondCode, ExprPredicate, ExprNot, ExprOr, ExprAnd, ExprBoolean>;
+using ExprData = std::variant<ExprVar, ExprCondCode, ExprPredicate, ExprNot, ExprOr, ExprAnd,
+                              ExprBoolean, ExprGprEqual>;
 using Expr = std::shared_ptr<ExprData>;
 
 class ExprAnd final {
@@ -118,6 +119,22 @@ public:
     bool value;
 };
 
+class ExprGprEqual final {
+public:
+    ExprGprEqual(u32 gpr, u32 value) : gpr{gpr}, value{value} {}
+
+    bool operator==(const ExprGprEqual& b) const {
+        return gpr == b.gpr && value == b.value;
+    }
+
+    bool operator!=(const ExprGprEqual& b) const {
+        return !operator==(b);
+    }
+
+    u32 gpr;
+    u32 value;
+};
+
 template <typename T, typename... Args>
 Expr MakeExpr(Args&&... args) {
     static_assert(std::is_convertible_v<T, ExprData>);

src/video_core/shader/shader_ir.cpp

@@ -2,8 +2,9 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <algorithm>
+#include <array>
 #include <cmath>
-#include <unordered_map>
 
 #include "common/assert.h"
 #include "common/common_types.h"
@@ -22,10 +23,9 @@ using Tegra::Shader::PredCondition;
 using Tegra::Shader::PredOperation;
 using Tegra::Shader::Register;
 
-ShaderIR::ShaderIR(const ProgramCode& program_code, u32 main_offset, const std::size_t size,
-                   CompilerSettings settings)
-    : program_code{program_code}, main_offset{main_offset}, program_size{size}, basic_blocks{},
-      program_manager{true, true}, settings{settings} {
+ShaderIR::ShaderIR(const ProgramCode& program_code, u32 main_offset, CompilerSettings settings,
+                   ConstBufferLocker& locker)
+    : program_code{program_code}, main_offset{main_offset}, settings{settings}, locker{locker} {
     Decode();
 }
 
@@ -271,21 +271,24 @@ Node ShaderIR::GetSaturatedHalfFloat(Node value, bool saturate) {
 }
 
 Node ShaderIR::GetPredicateComparisonFloat(PredCondition condition, Node op_a, Node op_b) {
-    const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
-        {PredCondition::LessThan, OperationCode::LogicalFLessThan},
-        {PredCondition::Equal, OperationCode::LogicalFEqual},
-        {PredCondition::LessEqual, OperationCode::LogicalFLessEqual},
-        {PredCondition::GreaterThan, OperationCode::LogicalFGreaterThan},
-        {PredCondition::NotEqual, OperationCode::LogicalFNotEqual},
-        {PredCondition::GreaterEqual, OperationCode::LogicalFGreaterEqual},
-        {PredCondition::LessThanWithNan, OperationCode::LogicalFLessThan},
-        {PredCondition::NotEqualWithNan, OperationCode::LogicalFNotEqual},
-        {PredCondition::LessEqualWithNan, OperationCode::LogicalFLessEqual},
-        {PredCondition::GreaterThanWithNan, OperationCode::LogicalFGreaterThan},
-        {PredCondition::GreaterEqualWithNan, OperationCode::LogicalFGreaterEqual}};
+    static constexpr std::array comparison_table{
+        std::pair{PredCondition::LessThan, OperationCode::LogicalFLessThan},
+        std::pair{PredCondition::Equal, OperationCode::LogicalFEqual},
+        std::pair{PredCondition::LessEqual, OperationCode::LogicalFLessEqual},
+        std::pair{PredCondition::GreaterThan, OperationCode::LogicalFGreaterThan},
+        std::pair{PredCondition::NotEqual, OperationCode::LogicalFNotEqual},
+        std::pair{PredCondition::GreaterEqual, OperationCode::LogicalFGreaterEqual},
+        std::pair{PredCondition::LessThanWithNan, OperationCode::LogicalFLessThan},
+        std::pair{PredCondition::NotEqualWithNan, OperationCode::LogicalFNotEqual},
+        std::pair{PredCondition::LessEqualWithNan, OperationCode::LogicalFLessEqual},
+        std::pair{PredCondition::GreaterThanWithNan, OperationCode::LogicalFGreaterThan},
+        std::pair{PredCondition::GreaterEqualWithNan, OperationCode::LogicalFGreaterEqual},
+    };
 
-    const auto comparison{PredicateComparisonTable.find(condition)};
-    UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
+    const auto comparison =
+        std::find_if(comparison_table.cbegin(), comparison_table.cend(),
+                     [condition](const auto entry) { return condition == entry.first; });
+    UNIMPLEMENTED_IF_MSG(comparison == comparison_table.cend(),
                          "Unknown predicate comparison operation");
 
     Node predicate = Operation(comparison->second, NO_PRECISE, op_a, op_b);
@@ -306,21 +309,24 @@ Node ShaderIR::GetPredicateComparisonFloat(PredCondition condition, Node op_a, N
 
 Node ShaderIR::GetPredicateComparisonInteger(PredCondition condition, bool is_signed, Node op_a,
                                              Node op_b) {
-    const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
-        {PredCondition::LessThan, OperationCode::LogicalILessThan},
-        {PredCondition::Equal, OperationCode::LogicalIEqual},
-        {PredCondition::LessEqual, OperationCode::LogicalILessEqual},
-        {PredCondition::GreaterThan, OperationCode::LogicalIGreaterThan},
-        {PredCondition::NotEqual, OperationCode::LogicalINotEqual},
-        {PredCondition::GreaterEqual, OperationCode::LogicalIGreaterEqual},
-        {PredCondition::LessThanWithNan, OperationCode::LogicalILessThan},
-        {PredCondition::NotEqualWithNan, OperationCode::LogicalINotEqual},
-        {PredCondition::LessEqualWithNan, OperationCode::LogicalILessEqual},
-        {PredCondition::GreaterThanWithNan, OperationCode::LogicalIGreaterThan},
-        {PredCondition::GreaterEqualWithNan, OperationCode::LogicalIGreaterEqual}};
+    static constexpr std::array comparison_table{
+        std::pair{PredCondition::LessThan, OperationCode::LogicalILessThan},
+        std::pair{PredCondition::Equal, OperationCode::LogicalIEqual},
+        std::pair{PredCondition::LessEqual, OperationCode::LogicalILessEqual},
+        std::pair{PredCondition::GreaterThan, OperationCode::LogicalIGreaterThan},
+        std::pair{PredCondition::NotEqual, OperationCode::LogicalINotEqual},
+        std::pair{PredCondition::GreaterEqual, OperationCode::LogicalIGreaterEqual},
+        std::pair{PredCondition::LessThanWithNan, OperationCode::LogicalILessThan},
+        std::pair{PredCondition::NotEqualWithNan, OperationCode::LogicalINotEqual},
+        std::pair{PredCondition::LessEqualWithNan, OperationCode::LogicalILessEqual},
+        std::pair{PredCondition::GreaterThanWithNan, OperationCode::LogicalIGreaterThan},
+        std::pair{PredCondition::GreaterEqualWithNan, OperationCode::LogicalIGreaterEqual},
+    };
 
-    const auto comparison{PredicateComparisonTable.find(condition)};
-    UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
+    const auto comparison =
+        std::find_if(comparison_table.cbegin(), comparison_table.cend(),
+                     [condition](const auto entry) { return condition == entry.first; });
+    UNIMPLEMENTED_IF_MSG(comparison == comparison_table.cend(),
                          "Unknown predicate comparison operation");
 
     Node predicate = SignedOperation(comparison->second, is_signed, NO_PRECISE, std::move(op_a),
@@ -337,36 +343,43 @@ Node ShaderIR::GetPredicateComparisonInteger(PredCondition condition, bool is_si
 
 Node ShaderIR::GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition, Node op_a,
                                           Node op_b) {
-    const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
-        {PredCondition::LessThan, OperationCode::Logical2HLessThan},
-        {PredCondition::Equal, OperationCode::Logical2HEqual},
-        {PredCondition::LessEqual, OperationCode::Logical2HLessEqual},
-        {PredCondition::GreaterThan, OperationCode::Logical2HGreaterThan},
-        {PredCondition::NotEqual, OperationCode::Logical2HNotEqual},
-        {PredCondition::GreaterEqual, OperationCode::Logical2HGreaterEqual},
-        {PredCondition::LessThanWithNan, OperationCode::Logical2HLessThanWithNan},
-        {PredCondition::NotEqualWithNan, OperationCode::Logical2HNotEqualWithNan},
-        {PredCondition::LessEqualWithNan, OperationCode::Logical2HLessEqualWithNan},
-        {PredCondition::GreaterThanWithNan, OperationCode::Logical2HGreaterThanWithNan},
-        {PredCondition::GreaterEqualWithNan, OperationCode::Logical2HGreaterEqualWithNan}};
+    static constexpr std::array comparison_table{
+        std::pair{PredCondition::LessThan, OperationCode::Logical2HLessThan},
+        std::pair{PredCondition::Equal, OperationCode::Logical2HEqual},
+        std::pair{PredCondition::LessEqual, OperationCode::Logical2HLessEqual},
+        std::pair{PredCondition::GreaterThan, OperationCode::Logical2HGreaterThan},
+        std::pair{PredCondition::NotEqual, OperationCode::Logical2HNotEqual},
+        std::pair{PredCondition::GreaterEqual, OperationCode::Logical2HGreaterEqual},
+        std::pair{PredCondition::LessThanWithNan, OperationCode::Logical2HLessThanWithNan},
+        std::pair{PredCondition::NotEqualWithNan, OperationCode::Logical2HNotEqualWithNan},
+        std::pair{PredCondition::LessEqualWithNan, OperationCode::Logical2HLessEqualWithNan},
+        std::pair{PredCondition::GreaterThanWithNan, OperationCode::Logical2HGreaterThanWithNan},
+        std::pair{PredCondition::GreaterEqualWithNan, OperationCode::Logical2HGreaterEqualWithNan},
+    };
 
-    const auto comparison{PredicateComparisonTable.find(condition)};
-    UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
+    const auto comparison =
+        std::find_if(comparison_table.cbegin(), comparison_table.cend(),
+                     [condition](const auto entry) { return condition == entry.first; });
+    UNIMPLEMENTED_IF_MSG(comparison == comparison_table.cend(),
                          "Unknown predicate comparison operation");
 
     return Operation(comparison->second, NO_PRECISE, std::move(op_a), std::move(op_b));
 }
 
 OperationCode ShaderIR::GetPredicateCombiner(PredOperation operation) {
-    const std::unordered_map<PredOperation, OperationCode> PredicateOperationTable = {
-        {PredOperation::And, OperationCode::LogicalAnd},
-        {PredOperation::Or, OperationCode::LogicalOr},
-        {PredOperation::Xor, OperationCode::LogicalXor},
+    static constexpr std::array operation_table{
+        OperationCode::LogicalAnd,
+        OperationCode::LogicalOr,
+        OperationCode::LogicalXor,
     };
 
-    const auto op = PredicateOperationTable.find(operation);
-    UNIMPLEMENTED_IF_MSG(op == PredicateOperationTable.end(), "Unknown predicate operation");
-    return op->second;
+    const auto index = static_cast<std::size_t>(operation);
+    if (index >= operation_table.size()) {
+        UNIMPLEMENTED_MSG("Unknown predicate operation.");
+        return {};
+    }
+
+    return operation_table[index];
 }
 
 Node ShaderIR::GetConditionCode(Tegra::Shader::ConditionCode cc) const {

src/video_core/shader/shader_ir.h

@@ -17,6 +17,7 @@
 #include "video_core/engines/shader_header.h"
 #include "video_core/shader/ast.h"
 #include "video_core/shader/compiler_settings.h"
+#include "video_core/shader/const_buffer_locker.h"
 #include "video_core/shader/node.h"
 
 namespace VideoCommon::Shader {
@@ -66,8 +67,8 @@ struct GlobalMemoryUsage {
 
 class ShaderIR final {
 public:
-    explicit ShaderIR(const ProgramCode& program_code, u32 main_offset, std::size_t size,
-                      CompilerSettings settings);
+    explicit ShaderIR(const ProgramCode& program_code, u32 main_offset, CompilerSettings settings,
+                      ConstBufferLocker& locker);
     ~ShaderIR();
 
     const std::map<u32, NodeBlock>& GetBasicBlocks() const {
@@ -172,6 +173,13 @@ public:
 
 private:
     friend class ASTDecoder;
+
+    struct SamplerInfo {
+        Tegra::Shader::TextureType type;
+        bool is_array;
+        bool is_shadow;
+    };
+
     void Decode();
 
     NodeBlock DecodeRange(u32 begin, u32 end);
@@ -296,12 +304,11 @@ private:
 
     /// Accesses a texture sampler
     const Sampler& GetSampler(const Tegra::Shader::Sampler& sampler,
-                              Tegra::Shader::TextureType type, bool is_array, bool is_shadow);
+                              std::optional<SamplerInfo> sampler_info);
 
     // Accesses a texture sampler for a bindless texture.
     const Sampler& GetBindlessSampler(const Tegra::Shader::Register& reg,
-                                      Tegra::Shader::TextureType type, bool is_array,
-                                      bool is_shadow);
+                                      std::optional<SamplerInfo> sampler_info);
 
     /// Accesses an image.
     Image& GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type);
@@ -322,7 +329,7 @@ private:
                                   const Node4& components);
 
     void WriteTexsInstructionFloat(NodeBlock& bb, Tegra::Shader::Instruction instr,
-                                   const Node4& components);
+                                   const Node4& components, bool ignore_mask = false);
     void WriteTexsInstructionHalfFloat(NodeBlock& bb, Tegra::Shader::Instruction instr,
                                        const Node4& components);
 
@@ -377,7 +384,9 @@ private:
 
     const ProgramCode& program_code;
     const u32 main_offset;
-    const std::size_t program_size;
+    const CompilerSettings settings;
+    ConstBufferLocker& locker;
+
     bool decompiled{};
     bool disable_flow_stack{};
 
@@ -386,8 +395,7 @@ private:
 
     std::map<u32, NodeBlock> basic_blocks;
     NodeBlock global_code;
-    ASTManager program_manager;
-    CompilerSettings settings{};
+    ASTManager program_manager{true, true};
 
     std::set<u32> used_registers;
     std::set<Tegra::Shader::Pred> used_predicates;

src/video_core/texture_cache/surface_params.cpp

@@ -250,6 +250,16 @@ SurfaceParams SurfaceParams::CreateForFermiCopySurface(
     return params;
 }
 
+VideoCore::Surface::SurfaceTarget SurfaceParams::ExpectedTarget(
+    const VideoCommon::Shader::Sampler& entry) {
+    return TextureTypeToSurfaceTarget(entry.GetType(), entry.IsArray());
+}
+
+VideoCore::Surface::SurfaceTarget SurfaceParams::ExpectedTarget(
+    const VideoCommon::Shader::Image& entry) {
+    return ImageTypeToSurfaceTarget(entry.GetType());
+}
+
 bool SurfaceParams::IsLayered() const {
     switch (target) {
     case SurfaceTarget::Texture1DArray:

src/video_core/texture_cache/surface_params.h

@@ -41,6 +41,14 @@ public:
     static SurfaceParams CreateForFermiCopySurface(
         const Tegra::Engines::Fermi2D::Regs::Surface& config);
 
+    /// Obtains the texture target from a shader's sampler entry.
+    static VideoCore::Surface::SurfaceTarget ExpectedTarget(
+        const VideoCommon::Shader::Sampler& entry);
+
+    /// Obtains the texture target from a shader's sampler entry.
+    static VideoCore::Surface::SurfaceTarget ExpectedTarget(
+        const VideoCommon::Shader::Image& entry);
+
     std::size_t Hash() const {
         return static_cast<std::size_t>(
             Common::CityHash64(reinterpret_cast<const char*>(this), sizeof(*this)));

src/video_core/texture_cache/texture_cache.h

@@ -94,10 +94,16 @@ public:
         std::lock_guard lock{mutex};
         const auto gpu_addr{tic.Address()};
         if (!gpu_addr) {
-            return {};
+            return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
+        }
+
+        const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+        const auto cache_addr{ToCacheAddr(host_ptr)};
+        if (!cache_addr) {
+            return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
         }
         const auto params{SurfaceParams::CreateForTexture(tic, entry)};
-        const auto [surface, view] = GetSurface(gpu_addr, params, true, false);
+        const auto [surface, view] = GetSurface(gpu_addr, cache_addr, params, true, false);
         if (guard_samplers) {
             sampled_textures.push_back(surface);
         }
@@ -109,10 +115,15 @@ public:
         std::lock_guard lock{mutex};
         const auto gpu_addr{tic.Address()};
         if (!gpu_addr) {
-            return {};
+            return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
+        }
+        const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+        const auto cache_addr{ToCacheAddr(host_ptr)};
+        if (!cache_addr) {
+            return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
         }
         const auto params{SurfaceParams::CreateForImage(tic, entry)};
-        const auto [surface, view] = GetSurface(gpu_addr, params, true, false);
+        const auto [surface, view] = GetSurface(gpu_addr, cache_addr, params, true, false);
         if (guard_samplers) {
             sampled_textures.push_back(surface);
         }
@@ -142,11 +153,17 @@ public:
             SetEmptyDepthBuffer();
             return {};
         }
+        const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+        const auto cache_addr{ToCacheAddr(host_ptr)};
+        if (!cache_addr) {
+            SetEmptyDepthBuffer();
+            return {};
+        }
         const auto depth_params{SurfaceParams::CreateForDepthBuffer(
             system, regs.zeta_width, regs.zeta_height, regs.zeta.format,
             regs.zeta.memory_layout.block_width, regs.zeta.memory_layout.block_height,
             regs.zeta.memory_layout.block_depth, regs.zeta.memory_layout.type)};
-        auto surface_view = GetSurface(gpu_addr, depth_params, preserve_contents, true);
+        auto surface_view = GetSurface(gpu_addr, cache_addr, depth_params, preserve_contents, true);
         if (depth_buffer.target)
             depth_buffer.target->MarkAsRenderTarget(false, NO_RT);
         depth_buffer.target = surface_view.first;
@@ -179,8 +196,16 @@ public:
             return {};
         }
 
-        auto surface_view = GetSurface(gpu_addr, SurfaceParams::CreateForFramebuffer(system, index),
-                                       preserve_contents, true);
+        const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+        const auto cache_addr{ToCacheAddr(host_ptr)};
+        if (!cache_addr) {
+            SetEmptyColorBuffer(index);
+            return {};
+        }
+
+        auto surface_view =
+            GetSurface(gpu_addr, cache_addr, SurfaceParams::CreateForFramebuffer(system, index),
+                       preserve_contents, true);
         if (render_targets[index].target)
             render_targets[index].target->MarkAsRenderTarget(false, NO_RT);
         render_targets[index].target = surface_view.first;
@@ -229,8 +254,14 @@ public:
         const GPUVAddr src_gpu_addr = src_config.Address();
         const GPUVAddr dst_gpu_addr = dst_config.Address();
         DeduceBestBlit(src_params, dst_params, src_gpu_addr, dst_gpu_addr);
-        std::pair<TSurface, TView> dst_surface = GetSurface(dst_gpu_addr, dst_params, true, false);
-        std::pair<TSurface, TView> src_surface = GetSurface(src_gpu_addr, src_params, true, false);
+        const auto dst_host_ptr{system.GPU().MemoryManager().GetPointer(dst_gpu_addr)};
+        const auto dst_cache_addr{ToCacheAddr(dst_host_ptr)};
+        const auto src_host_ptr{system.GPU().MemoryManager().GetPointer(src_gpu_addr)};
+        const auto src_cache_addr{ToCacheAddr(src_host_ptr)};
+        std::pair<TSurface, TView> dst_surface =
+            GetSurface(dst_gpu_addr, dst_cache_addr, dst_params, true, false);
+        std::pair<TSurface, TView> src_surface =
+            GetSurface(src_gpu_addr, src_cache_addr, src_params, true, false);
         ImageBlit(src_surface.second, dst_surface.second, copy_config);
         dst_surface.first->MarkAsModified(true, Tick());
     }
@@ -346,13 +377,6 @@ protected:
         return new_surface;
     }
 
-    std::pair<TSurface, TView> GetFermiSurface(
-        const Tegra::Engines::Fermi2D::Regs::Surface& config) {
-        SurfaceParams params = SurfaceParams::CreateForFermiCopySurface(config);
-        const GPUVAddr gpu_addr = config.Address();
-        return GetSurface(gpu_addr, params, true, false);
-    }
-
     Core::System& system;
 
 private:
@@ -615,22 +639,9 @@ private:
      *                          left blank.
      * @param is_render         Whether or not the surface is a render target.
      **/
-    std::pair<TSurface, TView> GetSurface(const GPUVAddr gpu_addr, const SurfaceParams& params,
-                                          bool preserve_contents, bool is_render) {
-        const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
-        const auto cache_addr{ToCacheAddr(host_ptr)};
-
-        // Step 0: guarantee a valid surface
-        if (!cache_addr) {
-            // Return a null surface if it's invalid
-            SurfaceParams new_params = params;
-            new_params.width = 1;
-            new_params.height = 1;
-            new_params.depth = 1;
-            new_params.block_height = 0;
-            new_params.block_depth = 0;
-            return InitializeSurface(gpu_addr, new_params, false);
-        }
+    std::pair<TSurface, TView> GetSurface(const GPUVAddr gpu_addr, const CacheAddr cache_addr,
+                                          const SurfaceParams& params, bool preserve_contents,
+                                          bool is_render) {
 
         // Step 1
         // Check Level 1 Cache for a fast structural match. If candidate surface
@@ -794,6 +805,42 @@ private:
         }
     }
 
+    /**
+     * Gets a null surface based on a target texture.
+     * @param target The target of the null surface.
+     **/
+    TView GetNullSurface(SurfaceTarget target) {
+        const u32 i_target = static_cast<u32>(target);
+        if (const auto it = invalid_cache.find(i_target); it != invalid_cache.end()) {
+            return it->second->GetMainView();
+        }
+        SurfaceParams params{};
+        params.target = target;
+        params.is_tiled = false;
+        params.srgb_conversion = false;
+        params.is_layered = false;
+        params.block_width = 0;
+        params.block_height = 0;
+        params.block_depth = 0;
+        params.tile_width_spacing = 1;
+        params.width = 1;
+        params.height = 1;
+        params.depth = 1;
+        params.pitch = 4;
+        params.num_levels = 1;
+        params.emulated_levels = 1;
+        params.pixel_format = VideoCore::Surface::PixelFormat::RGBA16F;
+        params.component_type = VideoCore::Surface::ComponentType::Float;
+        params.type = VideoCore::Surface::SurfaceType::ColorTexture;
+        auto surface = CreateSurface(0ULL, params);
+        invalid_memory.clear();
+        invalid_memory.resize(surface->GetHostSizeInBytes(), 0U);
+        surface->UploadTexture(invalid_memory);
+        surface->MarkAsModified(false, Tick());
+        invalid_cache.emplace(i_target, surface);
+        return surface->GetMainView();
+    }
+
     /**
      * Gets the a source and destination starting address and parameters,
      * and tries to deduce if they are supposed to be depth textures. If so, their
@@ -991,6 +1038,11 @@ private:
 
     std::vector<TSurface> sampled_textures;
 
+    /// This cache stores null surfaces in order to be used as a placeholder
+    /// for invalid texture calls.
+    std::unordered_map<u32, TSurface> invalid_cache;
+    std::vector<u8> invalid_memory{};
+
     StagingCache staging_cache;
     std::recursive_mutex mutex;
 };

src/yuzu/configuration/configure_graphics.cpp

@@ -62,6 +62,8 @@ ConfigureGraphics::ConfigureGraphics(QWidget* parent)
         }
         UpdateBackgroundColorButton(new_bg_color);
     });
+    connect(ui->brightness_reset, &QPushButton::pressed, this,
+            [this] { ui->brightness_slider->setValue(100); });
 }
 
 ConfigureGraphics::~ConfigureGraphics() = default;
@@ -80,6 +82,7 @@ void ConfigureGraphics::SetConfiguration() {
     ui->force_30fps_mode->setChecked(Settings::values.force_30fps_mode);
     UpdateBackgroundColorButton(QColor::fromRgbF(Settings::values.bg_red, Settings::values.bg_green,
                                                  Settings::values.bg_blue));
+    ui->brightness_slider->setValue(Settings::values.backlight_brightness * 100 + 50);
 }
 
 void ConfigureGraphics::ApplyConfiguration() {
@@ -93,6 +96,7 @@ void ConfigureGraphics::ApplyConfiguration() {
     Settings::values.bg_red = static_cast<float>(bg_color.redF());
     Settings::values.bg_green = static_cast<float>(bg_color.greenF());
     Settings::values.bg_blue = static_cast<float>(bg_color.blueF());
+    Settings::values.backlight_brightness = (ui->brightness_slider->value() - 50.0f) / 100.0f;
 }
 
 void ConfigureGraphics::changeEvent(QEvent* event) {

src/yuzu/configuration/configure_graphics.ui

@@ -111,6 +111,68 @@
           </item>
          </layout>
         </item>
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_3">
+          <item>
+           <widget class="QLabel" name="label_2">
+            <property name="text">
+             <string>Brightness</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QSlider" name="brightness_slider">
+            <property name="minimum">
+             <number>50</number>
+            </property>
+            <property name="maximum">
+             <number>150</number>
+            </property>
+            <property name="singleStep">
+             <number>10</number>
+            </property>
+            <property name="pageStep">
+             <number>20</number>
+            </property>
+            <property name="value">
+             <number>100</number>
+            </property>
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="tickPosition">
+             <enum>QSlider::NoTicks</enum>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="brightness_reset">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="text">
+             <string>Reset</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
        </layout>
       </widget>
      </item>

src/yuzu/debugger/wait_tree.cpp

@@ -66,10 +66,7 @@ std::vector<std::unique_ptr<WaitTreeThread>> WaitTreeItem::MakeThreadItemList()
     };
 
     const auto& system = Core::System::GetInstance();
-    add_threads(system.Scheduler(0).GetThreadList());
-    add_threads(system.Scheduler(1).GetThreadList());
-    add_threads(system.Scheduler(2).GetThreadList());
-    add_threads(system.Scheduler(3).GetThreadList());
+    add_threads(system.GlobalScheduler().GetThreadList());
 
     return item_list;
 }