gl_rasterizer_cache: Fix incorrect offset in ConvertS8Z24ToZ24S8.

OpenGL: Use MakeCurrent/DoneCurrent for multithreaded rendering.

.gitignore

@@ -11,6 +11,7 @@ src/common/scm_rev.cpp
 .idea/
 .vs/
 .vscode/
+CMakeLists.txt.user
 
 # *nix related
 # Common convention for backup or temporary files

externals/cmake-modules/WindowsCopyFiles.cmake

@@ -1,4 +1,4 @@
-# Copyright 2016 Citra Emulator Project
+# Copyright 2018 Yuzu Emulator Project
 # Licensed under GPLv2 or any later version
 # Refer to the license.txt file included.
 
@@ -22,7 +22,7 @@ function(windows_copy_files TARGET SOURCE_DIR DEST_DIR)
     # cmake adds an extra check for command success which doesn't work too well with robocopy
     # so trick it into thinking the command was successful with the || cmd /c "exit /b 0"
     add_custom_command(TARGET ${TARGET} POST_BUILD
-        COMMAND if not exist ${DEST_DIR} mkdir ${DEST_DIR} 2> nul
+        COMMAND ${CMAKE_COMMAND} -E make_directory ${DEST_DIR}
         COMMAND robocopy ${SOURCE_DIR} ${DEST_DIR} ${ARGN} /NJH /NJS /NDL /NFL /NC /NS /NP || cmd /c "exit /b 0"
     )
-endfunction()
+endfunction()

src/common/assert.h

@@ -52,5 +52,5 @@ __declspec(noinline, noreturn)
 #define DEBUG_ASSERT_MSG(_a_, _desc_, ...)
 #endif
 
-#define UNIMPLEMENTED() DEBUG_ASSERT_MSG(false, "Unimplemented code!")
+#define UNIMPLEMENTED() LOG_CRITICAL(Debug, "Unimplemented code!")
 #define UNIMPLEMENTED_MSG(...) ASSERT_MSG(false, __VA_ARGS__)

src/common/common_funcs.h

@@ -4,7 +4,7 @@
 
 #pragma once
 
-#if !defined(ARCHITECTURE_x86_64) && !defined(_M_ARM)
+#if !defined(ARCHITECTURE_x86_64) && !defined(ARCHITECTURE_ARM)
 #include <cstdlib> // for exit
 #endif
 #include "common/common_types.h"
@@ -30,7 +30,7 @@
 
 #ifdef ARCHITECTURE_x86_64
 #define Crash() __asm__ __volatile__("int $3")
-#elif defined(_M_ARM)
+#elif defined(ARCHITECTURE_ARM)
 #define Crash() __asm__ __volatile__("trap")
 #else
 #define Crash() exit(1)

src/common/memory_util.cpp

@@ -16,7 +16,7 @@
 #include <sys/mman.h>
 #endif
 
-#if !defined(_WIN32) && defined(ARCHITECTURE_X64) && !defined(MAP_32BIT)
+#if !defined(_WIN32) && defined(ARCHITECTURE_x86_64) && !defined(MAP_32BIT)
 #include <unistd.h>
 #define PAGE_MASK (getpagesize() - 1)
 #define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK))
@@ -30,7 +30,7 @@ void* AllocateExecutableMemory(size_t size, bool low) {
     void* ptr = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
 #else
     static char* map_hint = nullptr;
-#if defined(ARCHITECTURE_X64) && !defined(MAP_32BIT)
+#if defined(ARCHITECTURE_x86_64) && !defined(MAP_32BIT)
     // This OS has no flag to enforce allocation below the 4 GB boundary,
     // but if we hint that we want a low address it is very likely we will
     // get one.
@@ -42,7 +42,7 @@ void* AllocateExecutableMemory(size_t size, bool low) {
 #endif
     void* ptr = mmap(map_hint, size, PROT_READ | PROT_WRITE | PROT_EXEC,
                      MAP_ANON | MAP_PRIVATE
-#if defined(ARCHITECTURE_X64) && defined(MAP_32BIT)
+#if defined(ARCHITECTURE_x86_64) && defined(MAP_32BIT)
                          | (low ? MAP_32BIT : 0)
 #endif
                          ,
@@ -57,7 +57,7 @@ void* AllocateExecutableMemory(size_t size, bool low) {
 #endif
         LOG_ERROR(Common_Memory, "Failed to allocate executable memory");
     }
-#if !defined(_WIN32) && defined(ARCHITECTURE_X64) && !defined(MAP_32BIT)
+#if !defined(_WIN32) && defined(ARCHITECTURE_x86_64) && !defined(MAP_32BIT)
     else {
         if (low) {
             map_hint += size;

src/common/string_util.cpp

@@ -134,7 +134,7 @@ bool SplitPath(const std::string& full_path, std::string* _pPath, std::string* _
     size_t dir_end = full_path.find_last_of("/"
 // windows needs the : included for something like just "C:" to be considered a directory
 #ifdef _WIN32
-                                            ":"
+                                            "\\:"
 #endif
     );
     if (std::string::npos == dir_end)

src/common/swap.h

@@ -69,7 +69,7 @@ inline u32 swap32(u32 _data) {
 inline u64 swap64(u64 _data) {
     return _byteswap_uint64(_data);
 }
-#elif _M_ARM
+#elif ARCHITECTURE_ARM
 inline u16 swap16(u16 _data) {
     u32 data = _data;
     __asm__("rev16 %0, %1\n" : "=l"(data) : "l"(data));

src/core/arm/unicorn/arm_unicorn.cpp

@@ -193,11 +193,11 @@ void ARM_Unicorn::ExecuteInstructions(int num_instructions) {
         }
         Kernel::Thread* thread = Kernel::GetCurrentThread();
         SaveContext(thread->context);
-        if (last_bkpt_hit) {
+        if (last_bkpt_hit || (num_instructions == 1)) {
             last_bkpt_hit = false;
             GDBStub::Break();
+            GDBStub::SendTrap(thread, 5);
         }
-        GDBStub::SendTrap(thread, 5);
     }
 }
 

src/core/file_sys/disk_filesystem.cpp

@@ -58,11 +58,13 @@ ResultVal<std::unique_ptr<StorageBackend>> Disk_FileSystem::OpenFile(const std::
 }
 
 ResultCode Disk_FileSystem::DeleteFile(const std::string& path) const {
-    if (!FileUtil::Exists(path)) {
+    std::string full_path = base_directory + path;
+
+    if (!FileUtil::Exists(full_path)) {
         return ERROR_PATH_NOT_FOUND;
     }
 
-    FileUtil::Delete(path);
+    FileUtil::Delete(full_path);
 
     return RESULT_SUCCESS;
 }

src/core/file_sys/errors.h

@@ -11,6 +11,7 @@ namespace FileSys {
 namespace ErrCodes {
 enum {
     NotFound = 1,
+    SaveDataNotFound = 1002,
 };
 }
 

src/core/file_sys/savedata_factory.cpp

@@ -17,6 +17,15 @@ SaveData_Factory::SaveData_Factory(std::string nand_directory)
 
 ResultVal<std::unique_ptr<FileSystemBackend>> SaveData_Factory::Open(const Path& path) {
     std::string save_directory = GetFullPath();
+
+    if (!FileUtil::Exists(save_directory)) {
+        // TODO(bunnei): This is a work-around to always create a save data directory if it does not
+        // already exist. This is a hack, as we do not understand yet how this works on hardware.
+        // Without a save data directory, many games will assert on boot. This should not have any
+        // bad side-effects.
+        FileUtil::CreateFullPath(save_directory);
+    }
+
     // Return an error if the save data doesn't actually exist.
     if (!FileUtil::IsDirectory(save_directory)) {
         // TODO(Subv): Find out correct error code.

src/core/gdbstub/gdbstub.cpp

@@ -61,10 +61,16 @@ const u32 SIGTERM = 15;
 const u32 MSG_WAITALL = 8;
 #endif
 
-const u32 X30_REGISTER = 30;
+const u32 LR_REGISTER = 30;
 const u32 SP_REGISTER = 31;
 const u32 PC_REGISTER = 32;
 const u32 CPSR_REGISTER = 33;
+const u32 UC_ARM64_REG_Q0 = 34;
+const u32 FPSCR_REGISTER = 66;
+
+// TODO/WiP - Used while working on support for FPU
+const u32 TODO_DUMMY_REG_997 = 997;
+const u32 TODO_DUMMY_REG_998 = 998;
 
 // For sample XML files see the GDB source /gdb/features
 // GDB also wants the l character at the start
@@ -130,6 +136,8 @@ static const char* target_xml =
     </flags>
     <reg name="cpsr" bitsize="32" type="cpsr_flags"/>
   </feature>
+  <feature name="org.gnu.gdb.aarch64.fpu">
+  </feature>
 </target>
 )";
 
@@ -144,6 +152,7 @@ static u32 latest_signal = 0;
 static bool memory_break = false;
 
 static Kernel::Thread* current_thread = nullptr;
+static u32 current_core = 0;
 
 // Binding to a port within the reserved ports range (0-1023) requires root permissions,
 // so default to a port outside of that range.
@@ -171,13 +180,34 @@ static std::map<u64, Breakpoint> breakpoints_execute;
 static std::map<u64, Breakpoint> breakpoints_read;
 static std::map<u64, Breakpoint> breakpoints_write;
 
+struct Module {
+    std::string name;
+    PAddr beg;
+    PAddr end;
+};
+
+static std::vector<Module> modules;
+
+void RegisterModule(std::string name, PAddr beg, PAddr end, bool add_elf_ext) {
+    Module module;
+    if (add_elf_ext) {
+        Common::SplitPath(name, nullptr, &module.name, nullptr);
+        module.name += ".elf";
+    } else {
+        module.name = std::move(name);
+    }
+    module.beg = beg;
+    module.end = end;
+    modules.push_back(std::move(module));
+}
+
 static Kernel::Thread* FindThreadById(int id) {
-    for (int core = 0; core < Core::NUM_CPU_CORES; core++) {
-        auto threads = Core::System::GetInstance().Scheduler(core)->GetThreadList();
-        for (auto thread : threads) {
+    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() == id) {
-                current_thread = thread.get();
-                return current_thread;
+                current_core = core;
+                return thread.get();
             }
         }
     }
@@ -197,6 +227,8 @@ static u64 RegRead(int id, Kernel::Thread* thread = nullptr) {
         return thread->context.pc;
     } else if (id == CPSR_REGISTER) {
         return thread->context.cpsr;
+    } else if (id > CPSR_REGISTER && id < FPSCR_REGISTER) {
+        return thread->context.fpu_registers[id - UC_ARM64_REG_Q0][0];
     } else {
         return 0;
     }
@@ -215,6 +247,8 @@ static void RegWrite(int id, u64 val, Kernel::Thread* thread = nullptr) {
         thread->context.pc = val;
     } else if (id == CPSR_REGISTER) {
         thread->context.cpsr = val;
+    } else if (id > CPSR_REGISTER && id < FPSCR_REGISTER) {
+        thread->context.fpu_registers[id - (CPSR_REGISTER + 1)][0] = val;
     }
 }
 
@@ -534,7 +568,11 @@ static void HandleQuery() {
         SendReply("T0");
     } else if (strncmp(query, "Supported", strlen("Supported")) == 0) {
         // PacketSize needs to be large enough for target xml
-        SendReply("PacketSize=2000;qXfer:features:read+");
+        std::string buffer = "PacketSize=2000;qXfer:features:read+;qXfer:threads:read+";
+        if (!modules.empty()) {
+            buffer += ";qXfer:libraries:read+";
+        }
+        SendReply(buffer.c_str());
     } else if (strncmp(query, "Xfer:features:read:target.xml:",
                        strlen("Xfer:features:read:target.xml:")) == 0) {
         SendReply(target_xml);
@@ -543,9 +581,9 @@ static void HandleQuery() {
         SendReply(buffer.c_str());
     } else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {
         std::string val = "m";
-        for (int core = 0; core < Core::NUM_CPU_CORES; core++) {
-            auto threads = Core::System::GetInstance().Scheduler(core)->GetThreadList();
-            for (auto thread : 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) {
                 val += fmt::format("{:x}", thread->GetThreadId());
                 val += ",";
             }
@@ -554,6 +592,31 @@ static void HandleQuery() {
         SendReply(val.c_str());
     } else if (strncmp(query, "sThreadInfo", strlen("sThreadInfo")) == 0) {
         SendReply("l");
+    } else if (strncmp(query, "Xfer:threads:read", strlen("Xfer:threads:read")) == 0) {
+        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());
+            }
+        }
+        buffer += "</threads>";
+        SendReply(buffer.c_str());
+    } else if (strncmp(query, "Xfer:libraries:read", strlen("Xfer:libraries:read")) == 0) {
+        std::string buffer;
+        buffer += "l<?xml version=\"1.0\"?>";
+        buffer += "<library-list>";
+        for (const auto& module : modules) {
+            buffer +=
+                fmt::format(R"*("<library name = "{}"><segment address = "0x{:x}"/></library>)*",
+                            module.name, module.beg);
+        }
+        buffer += "</library-list>";
+        SendReply(buffer.c_str());
     } else {
         SendReply("");
     }
@@ -561,33 +624,27 @@ static void HandleQuery() {
 
 /// Handle set thread command from gdb client.
 static void HandleSetThread() {
-    if (memcmp(command_buffer, "Hc", 2) == 0 || memcmp(command_buffer, "Hg", 2) == 0) {
-        int thread_id = -1;
-        if (command_buffer[2] != '-') {
-            thread_id = static_cast<int>(HexToInt(
-                command_buffer + 2,
-                command_length - 2 /*strlen(reinterpret_cast<char*>(command_buffer) + 2)*/));
-        }
-        if (thread_id >= 1) {
-            current_thread = FindThreadById(thread_id);
-        }
-        if (!current_thread) {
-            thread_id = 1;
-            current_thread = FindThreadById(thread_id);
-        }
-        if (current_thread) {
-            SendReply("OK");
-            return;
-        }
+    int thread_id = -1;
+    if (command_buffer[2] != '-') {
+        thread_id = static_cast<int>(HexToInt(command_buffer + 2, command_length - 2));
+    }
+    if (thread_id >= 1) {
+        current_thread = FindThreadById(thread_id);
+    }
+    if (!current_thread) {
+        thread_id = 1;
+        current_thread = FindThreadById(thread_id);
+    }
+    if (current_thread) {
+        SendReply("OK");
+        return;
     }
     SendReply("E01");
 }
 
 /// Handle thread alive command from gdb client.
 static void HandleThreadAlive() {
-    int thread_id = static_cast<int>(
-        HexToInt(command_buffer + 1,
-                 command_length - 1 /*strlen(reinterpret_cast<char*>(command_buffer) + 1)*/));
+    int thread_id = static_cast<int>(HexToInt(command_buffer + 1, command_length - 1));
     if (thread_id == 0) {
         thread_id = 1;
     }
@@ -610,16 +667,23 @@ static void SendSignal(Kernel::Thread* thread, u32 signal, bool full = true) {
 
     latest_signal = signal;
 
-    std::string buffer;
-    if (full) {
-        buffer = fmt::format("T{:02x}{:02x}:{:016x};{:02x}:{:016x};", latest_signal, PC_REGISTER,
-                             Common::swap64(RegRead(PC_REGISTER, thread)), SP_REGISTER,
-                             Common::swap64(RegRead(SP_REGISTER, thread)));
-    } else {
-        buffer = fmt::format("T{:02x};", latest_signal);
+    if (!thread) {
+        full = false;
     }
 
-    buffer += fmt::format("thread:{:x};", thread->GetThreadId());
+    std::string buffer;
+    if (full) {
+        buffer = fmt::format("T{:02x}{:02x}:{:016x};{:02x}:{:016x};{:02x}:{:016x}", latest_signal,
+                             PC_REGISTER, Common::swap64(RegRead(PC_REGISTER, thread)), SP_REGISTER,
+                             Common::swap64(RegRead(SP_REGISTER, thread)), LR_REGISTER,
+                             Common::swap64(RegRead(LR_REGISTER, thread)));
+    } else {
+        buffer = fmt::format("T{:02x}", latest_signal);
+    }
+
+    if (thread) {
+        buffer += fmt::format(";thread:{:x};", thread->GetThreadId());
+    }
 
     SendReply(buffer.c_str());
 }
@@ -711,8 +775,12 @@ static void ReadRegister() {
         LongToGdbHex(reply, RegRead(id, current_thread));
     } else if (id == CPSR_REGISTER) {
         IntToGdbHex(reply, (u32)RegRead(id, current_thread));
+    } else if (id >= UC_ARM64_REG_Q0 && id < FPSCR_REGISTER) {
+        LongToGdbHex(reply, RegRead(id, current_thread));
+    } else if (id == FPSCR_REGISTER) {
+        LongToGdbHex(reply, RegRead(TODO_DUMMY_REG_998, current_thread));
     } else {
-        return SendReply("E01");
+        LongToGdbHex(reply, RegRead(TODO_DUMMY_REG_997, current_thread));
     }
 
     SendReply(reinterpret_cast<char*>(reply));
@@ -729,7 +797,7 @@ static void ReadRegisters() {
         LongToGdbHex(bufptr + reg * 16, RegRead(reg, current_thread));
     }
 
-    bufptr += (32 * 16);
+    bufptr += 32 * 16;
 
     LongToGdbHex(bufptr, RegRead(PC_REGISTER, current_thread));
 
@@ -739,6 +807,16 @@ static void ReadRegisters() {
 
     bufptr += 8;
 
+    for (int reg = UC_ARM64_REG_Q0; reg <= UC_ARM64_REG_Q0 + 31; reg++) {
+        LongToGdbHex(bufptr + reg * 16, RegRead(reg, current_thread));
+    }
+
+    bufptr += 32 * 32;
+
+    LongToGdbHex(bufptr, RegRead(TODO_DUMMY_REG_998, current_thread));
+
+    bufptr += 8;
+
     SendReply(reinterpret_cast<char*>(buffer));
 }
 
@@ -759,10 +837,17 @@ static void WriteRegister() {
         RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
     } else if (id == CPSR_REGISTER) {
         RegWrite(id, GdbHexToInt(buffer_ptr), current_thread);
+    } else if (id >= UC_ARM64_REG_Q0 && id < FPSCR_REGISTER) {
+        RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
+    } else if (id == FPSCR_REGISTER) {
+        RegWrite(TODO_DUMMY_REG_998, GdbHexToLong(buffer_ptr), current_thread);
     } else {
-        return SendReply("E01");
+        RegWrite(TODO_DUMMY_REG_997, GdbHexToLong(buffer_ptr), current_thread);
     }
 
+    // Update Unicorn context skipping scheduler, no running threads at this point
+    Core::System::GetInstance().ArmInterface(current_core).LoadContext(current_thread->context);
+
     SendReply("OK");
 }
 
@@ -773,18 +858,25 @@ static void WriteRegisters() {
     if (command_buffer[0] != 'G')
         return SendReply("E01");
 
-    for (int i = 0, reg = 0; reg <= CPSR_REGISTER; i++, reg++) {
+    for (int i = 0, reg = 0; reg <= FPSCR_REGISTER; i++, reg++) {
         if (reg <= SP_REGISTER) {
             RegWrite(reg, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else if (reg == PC_REGISTER) {
             RegWrite(PC_REGISTER, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else if (reg == CPSR_REGISTER) {
             RegWrite(CPSR_REGISTER, GdbHexToInt(buffer_ptr + i * 16), current_thread);
+        } else if (reg >= UC_ARM64_REG_Q0 && reg < FPSCR_REGISTER) {
+            RegWrite(reg, GdbHexToLong(buffer_ptr + i * 16), current_thread);
+        } else if (reg == FPSCR_REGISTER) {
+            RegWrite(TODO_DUMMY_REG_998, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else {
             UNIMPLEMENTED();
         }
     }
 
+    // Update Unicorn context skipping scheduler, no running threads at this point
+    Core::System::GetInstance().ArmInterface(current_core).LoadContext(current_thread->context);
+
     SendReply("OK");
 }
 
@@ -806,6 +898,10 @@ static void ReadMemory() {
         SendReply("E01");
     }
 
+    if (addr < Memory::PROCESS_IMAGE_VADDR || addr >= Memory::MAP_REGION_VADDR_END) {
+        return SendReply("E00");
+    }
+
     if (!Memory::IsValidVirtualAddress(addr)) {
         return SendReply("E00");
     }
@@ -840,16 +936,18 @@ static void WriteMemory() {
 }
 
 void Break(bool is_memory_break) {
-    if (!halt_loop) {
-        halt_loop = true;
-        send_trap = true;
-    }
+    send_trap = true;
 
     memory_break = is_memory_break;
 }
 
 /// Tell the CPU that it should perform a single step.
 static void Step() {
+    if (command_length > 1) {
+        RegWrite(PC_REGISTER, GdbHexToLong(command_buffer + 1), current_thread);
+        // Update Unicorn context skipping scheduler, no running threads at this point
+        Core::System::GetInstance().ArmInterface(current_core).LoadContext(current_thread->context);
+    }
     step_loop = true;
     halt_loop = true;
     send_trap = true;
@@ -1090,6 +1188,8 @@ static void Init(u16 port) {
     breakpoints_read.clear();
     breakpoints_write.clear();
 
+    modules.clear();
+
     // Start gdb server
     LOG_INFO(Debug_GDBStub, "Starting GDB server on port {}...", port);
 
@@ -1192,8 +1292,12 @@ void SetCpuStepFlag(bool is_step) {
 
 void SendTrap(Kernel::Thread* thread, int trap) {
     if (send_trap) {
+        if (!halt_loop || current_thread == thread) {
+            current_thread = thread;
+            SendSignal(thread, trap);
+        }
+        halt_loop = true;
         send_trap = false;
-        SendSignal(thread, trap);
     }
 }
 }; // namespace GDBStub

src/core/gdbstub/gdbstub.h

@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <string>
 #include "common/common_types.h"
 #include "core/hle/kernel/thread.h"
 
@@ -51,6 +52,9 @@ bool IsServerEnabled();
 /// Returns true if there is an active socket connection.
 bool IsConnected();
 
+/// Register module.
+void RegisterModule(std::string name, PAddr beg, PAddr end, bool add_elf_ext = true);
+
 /**
  * Signal to the gdbstub server that it should halt CPU execution.
  *
@@ -80,10 +84,10 @@ BreakpointAddress GetNextBreakpointFromAddress(PAddr addr, GDBStub::BreakpointTy
  */
 bool CheckBreakpoint(PAddr addr, GDBStub::BreakpointType type);
 
-// If set to true, the CPU will halt at the beginning of the next CPU loop.
+/// If set to true, the CPU will halt at the beginning of the next CPU loop.
 bool GetCpuHaltFlag();
 
-// If set to true and the CPU is halted, the CPU will step one instruction.
+/// If set to true and the CPU is halted, the CPU will step one instruction.
 bool GetCpuStepFlag();
 
 /**

src/core/hle/kernel/hle_ipc.cpp

@@ -214,8 +214,8 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(Thread& thread) {
             (sizeof(IPC::CommandHeader) + sizeof(IPC::HandleDescriptorHeader)) / sizeof(u32);
         ASSERT_MSG(!handle_descriptor_header->send_current_pid, "Sending PID is not implemented");
 
-        ASSERT_MSG(copy_objects.size() == handle_descriptor_header->num_handles_to_copy);
-        ASSERT_MSG(move_objects.size() == handle_descriptor_header->num_handles_to_move);
+        ASSERT(copy_objects.size() == handle_descriptor_header->num_handles_to_copy);
+        ASSERT(move_objects.size() == handle_descriptor_header->num_handles_to_move);
 
         // We don't make a distinction between copy and move handles when translating since HLE
         // services don't deal with handles directly. However, the guest applications might check

src/core/hle/service/audio/audout_u.cpp

@@ -27,12 +27,12 @@ public:
             {0, &IAudioOut::GetAudioOutState, "GetAudioOutState"},
             {1, &IAudioOut::StartAudioOut, "StartAudioOut"},
             {2, &IAudioOut::StopAudioOut, "StopAudioOut"},
-            {3, &IAudioOut::AppendAudioOutBuffer, "AppendAudioOutBuffer"},
+            {3, &IAudioOut::AppendAudioOutBufferImpl, "AppendAudioOutBuffer"},
             {4, &IAudioOut::RegisterBufferEvent, "RegisterBufferEvent"},
-            {5, &IAudioOut::GetReleasedAudioOutBuffer, "GetReleasedAudioOutBuffer"},
+            {5, &IAudioOut::GetReleasedAudioOutBufferImpl, "GetReleasedAudioOutBuffer"},
             {6, nullptr, "ContainsAudioOutBuffer"},
-            {7, nullptr, "AppendAudioOutBufferAuto"},
-            {8, nullptr, "GetReleasedAudioOutBufferAuto"},
+            {7, &IAudioOut::AppendAudioOutBufferImpl, "AppendAudioOutBufferAuto"},
+            {8, &IAudioOut::GetReleasedAudioOutBufferImpl, "GetReleasedAudioOutBufferAuto"},
             {9, nullptr, "GetAudioOutBufferCount"},
             {10, nullptr, "GetAudioOutPlayedSampleCount"},
             {11, nullptr, "FlushAudioOutBuffers"},
@@ -96,7 +96,7 @@ private:
         rb.PushCopyObjects(buffer_event);
     }
 
-    void AppendAudioOutBuffer(Kernel::HLERequestContext& ctx) {
+    void AppendAudioOutBufferImpl(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_Audio, "(STUBBED) called");
         IPC::RequestParser rp{ctx};
 
@@ -107,7 +107,7 @@ private:
         rb.Push(RESULT_SUCCESS);
     }
 
-    void GetReleasedAudioOutBuffer(Kernel::HLERequestContext& ctx) {
+    void GetReleasedAudioOutBufferImpl(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_Audio, "(STUBBED) called");
 
         // TODO(st4rk): This is how libtransistor currently implements the
@@ -163,7 +163,7 @@ private:
     AudioState audio_out_state;
 };
 
-void AudOutU::ListAudioOuts(Kernel::HLERequestContext& ctx) {
+void AudOutU::ListAudioOutsImpl(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service_Audio, "(STUBBED) called");
     IPC::RequestParser rp{ctx};
 
@@ -179,7 +179,7 @@ void AudOutU::ListAudioOuts(Kernel::HLERequestContext& ctx) {
     rb.Push<u32>(1);
 }
 
-void AudOutU::OpenAudioOut(Kernel::HLERequestContext& ctx) {
+void AudOutU::OpenAudioOutImpl(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service_Audio, "(STUBBED) called");
 
     if (!audio_out_interface) {
@@ -196,10 +196,10 @@ void AudOutU::OpenAudioOut(Kernel::HLERequestContext& ctx) {
 }
 
 AudOutU::AudOutU() : ServiceFramework("audout:u") {
-    static const FunctionInfo functions[] = {{0, &AudOutU::ListAudioOuts, "ListAudioOuts"},
-                                             {1, &AudOutU::OpenAudioOut, "OpenAudioOut"},
-                                             {2, nullptr, "ListAudioOutsAuto"},
-                                             {3, nullptr, "OpenAudioOutAuto"}};
+    static const FunctionInfo functions[] = {{0, &AudOutU::ListAudioOutsImpl, "ListAudioOuts"},
+                                             {1, &AudOutU::OpenAudioOutImpl, "OpenAudioOut"},
+                                             {2, &AudOutU::ListAudioOutsImpl, "ListAudioOutsAuto"},
+                                             {3, &AudOutU::OpenAudioOutImpl, "OpenAudioOutAuto"}};
     RegisterHandlers(functions);
 }
 

src/core/hle/service/audio/audout_u.h

@@ -22,8 +22,8 @@ public:
 private:
     std::shared_ptr<IAudioOut> audio_out_interface;
 
-    void ListAudioOuts(Kernel::HLERequestContext& ctx);
-    void OpenAudioOut(Kernel::HLERequestContext& ctx);
+    void ListAudioOutsImpl(Kernel::HLERequestContext& ctx);
+    void OpenAudioOutImpl(Kernel::HLERequestContext& ctx);
 
     enum class PcmFormat : u32 {
         Invalid = 0,

src/core/hle/service/audio/audren_u.cpp

@@ -47,7 +47,7 @@ public:
 
         // Start the audio event
         CoreTiming::ScheduleEvent(audio_ticks, audio_event);
-        voice_status_list.reserve(worker_params.voice_count);
+        voice_status_list.resize(worker_params.voice_count);
     }
     ~IAudioRenderer() {
         CoreTiming::UnscheduleEvent(audio_event, 0);
@@ -87,8 +87,6 @@ private:
                 memory_pool[i].state = MemoryPoolStates::Attached;
             else if (mem_pool_info[i].pool_state == MemoryPoolStates::RequestDetach)
                 memory_pool[i].state = MemoryPoolStates::Detached;
-            else
-                memory_pool[i].state = mem_pool_info[i].pool_state;
         }
         std::memcpy(output.data() + sizeof(UpdateDataHeader), memory_pool.data(),
                     response_data.memory_pools_size);
@@ -183,7 +181,9 @@ private:
             behavior_size = 0xb0;
             memory_pools_size = (config.effect_count + (config.voice_count * 4)) * 0x10;
             voices_size = config.voice_count * 0x10;
+            voice_resource_size = 0x0;
             effects_size = config.effect_count * 0x10;
+            mixes_size = 0x0;
             sinks_size = config.sink_count * 0x20;
             performance_manager_size = 0x10;
             total_size = sizeof(UpdateDataHeader) + behavior_size + memory_pools_size +

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

@@ -7,6 +7,7 @@
 #include "common/string_util.h"
 #include "core/core.h"
 #include "core/file_sys/directory.h"
+#include "core/file_sys/errors.h"
 #include "core/file_sys/filesystem.h"
 #include "core/file_sys/storage.h"
 #include "core/hle/ipc_helpers.h"
@@ -531,12 +532,20 @@ void FSP_SRV::CreateSaveData(Kernel::HLERequestContext& ctx) {
 void FSP_SRV::MountSaveData(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
+    // TODO(Subv): Read the input parameters and mount the requested savedata instead of always
+    // mounting the current process' savedata.
     FileSys::Path unused;
-    auto filesystem = OpenFileSystem(Type::SaveData, unused).Unwrap();
+    auto filesystem = OpenFileSystem(Type::SaveData, unused);
+
+    if (filesystem.Failed()) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 0};
+        rb.Push(ResultCode(ErrorModule::FS, FileSys::ErrCodes::SaveDataNotFound));
+        return;
+    }
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IFileSystem>(std::move(filesystem));
+    rb.PushIpcInterface<IFileSystem>(std::move(filesystem.Unwrap()));
 }
 
 void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {

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

@@ -75,7 +75,7 @@ private:
 
         // Set up controllers as neon red+blue Joy-Con attached to console
         ControllerHeader& controller_header = mem.controllers[Controller_Handheld].header;
-        controller_header.type = ControllerType_Handheld | ControllerType_JoyconPair;
+        controller_header.type = ControllerType_Handheld;
         controller_header.single_colors_descriptor = ColorDesc_ColorsNonexistent;
         controller_header.right_color_body = JOYCON_BODY_NEON_RED;
         controller_header.right_color_buttons = JOYCON_BUTTONS_NEON_RED;
@@ -84,23 +84,21 @@ private:
 
         for (size_t controller = 0; controller < mem.controllers.size(); controller++) {
             for (int index = 0; index < HID_NUM_LAYOUTS; index++) {
-                // TODO(DarkLordZach): Is this layout/controller config actually invalid?
-                if (controller == Controller_Handheld && index == Layout_Single)
-                    continue;
-
                 ControllerLayout& layout = mem.controllers[controller].layouts[index];
                 layout.header.num_entries = HID_NUM_ENTRIES;
                 layout.header.max_entry_index = HID_NUM_ENTRIES - 1;
 
                 // HID shared memory stores the state of the past 17 samples in a circlular buffer,
                 // each with a timestamp in number of samples since boot.
+                const ControllerInputEntry& last_entry = layout.entries[layout.header.latest_entry];
+
                 layout.header.timestamp_ticks = CoreTiming::GetTicks();
                 layout.header.latest_entry = (layout.header.latest_entry + 1) % HID_NUM_ENTRIES;
 
                 ControllerInputEntry& entry = layout.entries[layout.header.latest_entry];
-                entry.timestamp++;
+                entry.timestamp = last_entry.timestamp + 1;
                 // TODO(shinyquagsire23): Is this always identical to timestamp?
-                entry.timestamp_2++;
+                entry.timestamp_2 = entry.timestamp;
 
                 // TODO(shinyquagsire23): More than just handheld input
                 if (controller != Controller_Handheld)

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

@@ -148,6 +148,24 @@ private:
 
         LOG_DEBUG(Service_NIFM, "called");
     }
+    void IsWirelessCommunicationEnabled(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u8>(0);
+    }
+    void IsEthernetCommunicationEnabled(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u8>(0);
+    }
+    void IsAnyInternetRequestAccepted(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_NIFM, "(STUBBED) called");
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u8>(0);
+    }
 };
 
 IGeneralService::IGeneralService() : ServiceFramework("IGeneralService") {
@@ -167,11 +185,11 @@ IGeneralService::IGeneralService() : ServiceFramework("IGeneralService") {
         {14, &IGeneralService::CreateTemporaryNetworkProfile, "CreateTemporaryNetworkProfile"},
         {15, nullptr, "GetCurrentIpConfigInfo"},
         {16, nullptr, "SetWirelessCommunicationEnabled"},
-        {17, nullptr, "IsWirelessCommunicationEnabled"},
+        {17, &IGeneralService::IsWirelessCommunicationEnabled, "IsWirelessCommunicationEnabled"},
         {18, nullptr, "GetInternetConnectionStatus"},
         {19, nullptr, "SetEthernetCommunicationEnabled"},
-        {20, nullptr, "IsEthernetCommunicationEnabled"},
-        {21, nullptr, "IsAnyInternetRequestAccepted"},
+        {20, &IGeneralService::IsEthernetCommunicationEnabled, "IsEthernetCommunicationEnabled"},
+        {21, &IGeneralService::IsAnyInternetRequestAccepted, "IsAnyInternetRequestAccepted"},
         {22, nullptr, "IsAnyForegroundRequestAccepted"},
         {23, nullptr, "PutToSleep"},
         {24, nullptr, "WakeUp"},

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

@@ -29,24 +29,9 @@ u32 nvhost_ctrl::ioctl(Ioctl command, const std::vector<u8>& input, std::vector<
 u32 nvhost_ctrl::NvOsGetConfigU32(const std::vector<u8>& input, std::vector<u8>& output) {
     IocGetConfigParams params{};
     std::memcpy(&params, input.data(), sizeof(params));
-    LOG_DEBUG(Service_NVDRV, "called, setting={}!{}", params.domain_str.data(),
+    LOG_TRACE(Service_NVDRV, "called, setting={}!{}", params.domain_str.data(),
               params.param_str.data());
-
-    if (!strcmp(params.domain_str.data(), "nv")) {
-        if (!strcmp(params.param_str.data(), "NV_MEMORY_PROFILER")) {
-            params.config_str[0] = '0';
-        } else if (!strcmp(params.param_str.data(), "NVN_THROUGH_OPENGL")) {
-            params.config_str[0] = '0';
-        } else if (!strcmp(params.param_str.data(), "NVRM_GPU_PREVENT_USE")) {
-            params.config_str[0] = '0';
-        } else {
-            params.config_str[0] = '0';
-        }
-    } else {
-        UNIMPLEMENTED(); // unknown domain? Only nv has been seen so far on hardware
-    }
-    std::memcpy(output.data(), &params, sizeof(params));
-    return 0;
+    return 0x30006; // Returns error on production mode
 }
 
 u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>& output,

src/core/hle/service/sockets/bsd.cpp

@@ -19,10 +19,9 @@ void BSD::RegisterClient(Kernel::HLERequestContext& ctx) {
 void BSD::StartMonitoring(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service, "(STUBBED) called");
 
-    IPC::ResponseBuilder rb{ctx, 3};
+    IPC::ResponseBuilder rb{ctx, 2};
 
     rb.Push(RESULT_SUCCESS);
-    rb.Push<u32>(0); // bsd errno
 }
 
 void BSD::Socket(Kernel::HLERequestContext& ctx) {

src/core/loader/deconstructed_rom_directory.cpp

@@ -9,6 +9,7 @@
 #include "common/logging/log.h"
 #include "common/string_util.h"
 #include "core/file_sys/romfs_factory.h"
+#include "core/gdbstub/gdbstub.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
 #include "core/hle/service/filesystem/filesystem.h"
@@ -133,6 +134,8 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
         next_load_addr = AppLoader_NSO::LoadModule(path, load_addr);
         if (next_load_addr) {
             LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
+            // Register module with GDBStub
+            GDBStub::RegisterModule(module, load_addr, next_load_addr - 1, false);
         } else {
             next_load_addr = load_addr;
         }

src/core/loader/nca.cpp

@@ -7,10 +7,12 @@
 #include "common/common_funcs.h"
 #include "common/file_util.h"
 #include "common/logging/log.h"
+#include "common/string_util.h"
 #include "common/swap.h"
 #include "core/core.h"
 #include "core/file_sys/program_metadata.h"
 #include "core/file_sys/romfs_factory.h"
+#include "core/gdbstub/gdbstub.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
 #include "core/hle/service/filesystem/filesystem.h"
@@ -259,6 +261,8 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
         next_load_addr = AppLoader_NSO::LoadModule(module, nca->GetExeFsFile(module), load_addr);
         if (next_load_addr) {
             LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
+            // Register module with GDBStub
+            GDBStub::RegisterModule(module, load_addr, next_load_addr - 1, false);
         } else {
             next_load_addr = load_addr;
         }

src/core/loader/nro.cpp

@@ -9,6 +9,7 @@
 #include "common/logging/log.h"
 #include "common/swap.h"
 #include "core/core.h"
+#include "core/gdbstub/gdbstub.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
 #include "core/loader/nro.h"
@@ -115,6 +116,9 @@ bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) {
     codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
     Core::CurrentProcess()->LoadModule(codeset, load_base);
 
+    // Register module with GDBStub
+    GDBStub::RegisterModule(codeset->name, load_base, load_base);
+
     return true;
 }
 

src/core/loader/nso.cpp

@@ -10,6 +10,7 @@
 #include "common/logging/log.h"
 #include "common/swap.h"
 #include "core/core.h"
+#include "core/gdbstub/gdbstub.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
 #include "core/loader/nso.h"
@@ -147,6 +148,9 @@ VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>&
     codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
     Core::CurrentProcess()->LoadModule(codeset, load_base);
 
+    // Register module with GDBStub
+    GDBStub::RegisterModule(codeset->name, load_base, load_base);
+
     return load_base + image_size;
 }
 

src/video_core/engines/maxwell_3d.cpp

@@ -398,27 +398,6 @@ u32 Maxwell3D::GetRegisterValue(u32 method) const {
     return regs.reg_array[method];
 }
 
-bool Maxwell3D::IsShaderStageEnabled(Regs::ShaderStage stage) const {
-    // The Vertex stage is always enabled.
-    if (stage == Regs::ShaderStage::Vertex)
-        return true;
-
-    switch (stage) {
-    case Regs::ShaderStage::TesselationControl:
-        return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::TesselationControl)]
-                   .enable != 0;
-    case Regs::ShaderStage::TesselationEval:
-        return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::TesselationEval)]
-                   .enable != 0;
-    case Regs::ShaderStage::Geometry:
-        return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::Geometry)].enable != 0;
-    case Regs::ShaderStage::Fragment:
-        return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::Fragment)].enable != 0;
-    }
-
-    UNREACHABLE();
-}
-
 void Maxwell3D::ProcessClearBuffers() {
     ASSERT(regs.clear_buffers.R == regs.clear_buffers.G &&
            regs.clear_buffers.R == regs.clear_buffers.B &&

src/video_core/engines/maxwell_3d.h

@@ -379,6 +379,14 @@ public:
             }
         };
 
+        bool IsShaderConfigEnabled(size_t index) const {
+            // The VertexB is always enabled.
+            if (index == static_cast<size_t>(Regs::ShaderProgram::VertexB)) {
+                return true;
+            }
+            return shader_config[index].enable != 0;
+        }
+
         union {
             struct {
                 INSERT_PADDING_WORDS(0x45);
@@ -780,9 +788,6 @@ public:
     /// Returns the texture information for a specific texture in a specific shader stage.
     Texture::FullTextureInfo GetStageTexture(Regs::ShaderStage stage, size_t offset) const;
 
-    /// Returns whether the specified shader stage is enabled or not.
-    bool IsShaderStageEnabled(Regs::ShaderStage stage) const;
-
 private:
     std::unordered_map<u32, std::vector<u32>> uploaded_macros;
 

src/video_core/engines/shader_bytecode.h

@@ -142,6 +142,7 @@ enum class PredCondition : u64 {
     GreaterThan = 4,
     NotEqual = 5,
     GreaterEqual = 6,
+    LessThanWithNan = 9,
     NotEqualWithNan = 13,
     // TODO(Subv): Other condition types
 };
@@ -201,6 +202,11 @@ enum class IMinMaxExchange : u64 {
     XHi = 3,
 };
 
+enum class FlowCondition : u64 {
+    Always = 0xF,
+    Fcsm_Tr = 0x1C, // TODO(bunnei): What is this used for?
+};
+
 union Instruction {
     Instruction& operator=(const Instruction& instr) {
         value = instr.value;
@@ -297,6 +303,13 @@ union Instruction {
         BitField<56, 1, u64> negate_a;
     } iadd32i;
 
+    union {
+        BitField<53, 1, u64> negate_b;
+        BitField<54, 1, u64> abs_a;
+        BitField<56, 1, u64> negate_a;
+        BitField<57, 1, u64> abs_b;
+    } fadd32i;
+
     union {
         BitField<20, 8, u64> shift_position;
         BitField<28, 8, u64> shift_length;
@@ -308,6 +321,10 @@ union Instruction {
         }
     } bfe;
 
+    union {
+        BitField<0, 5, FlowCondition> cond;
+    } flow;
+
     union {
         BitField<48, 1, u64> negate_b;
         BitField<49, 1, u64> negate_c;
@@ -487,6 +504,7 @@ public:
         FADD_C,
         FADD_R,
         FADD_IMM,
+        FADD32I,
         FMUL_C,
         FMUL_R,
         FMUL_IMM,
@@ -679,13 +697,14 @@ private:
             INST("1101101---------", Id::TLDS, Type::Memory, "TLDS"),
             INST("111000110000----", Id::EXIT, Type::Trivial, "EXIT"),
             INST("11100000--------", Id::IPA, Type::Trivial, "IPA"),
-            INST("001100101-------", Id::FFMA_IMM, Type::Ffma, "FFMA_IMM"),
+            INST("0011001-1-------", Id::FFMA_IMM, Type::Ffma, "FFMA_IMM"),
             INST("010010011-------", Id::FFMA_CR, Type::Ffma, "FFMA_CR"),
             INST("010100011-------", Id::FFMA_RC, Type::Ffma, "FFMA_RC"),
             INST("010110011-------", Id::FFMA_RR, Type::Ffma, "FFMA_RR"),
             INST("0100110001011---", Id::FADD_C, Type::Arithmetic, "FADD_C"),
             INST("0101110001011---", Id::FADD_R, Type::Arithmetic, "FADD_R"),
             INST("0011100-01011---", Id::FADD_IMM, Type::Arithmetic, "FADD_IMM"),
+            INST("000010----------", Id::FADD32I, Type::ArithmeticImmediate, "FADD32I"),
             INST("0100110001101---", Id::FMUL_C, Type::Arithmetic, "FMUL_C"),
             INST("0101110001101---", Id::FMUL_R, Type::Arithmetic, "FMUL_R"),
             INST("0011100-01101---", Id::FMUL_IMM, Type::Arithmetic, "FMUL_IMM"),

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -15,6 +15,7 @@
 #include "common/microprofile.h"
 #include "common/scope_exit.h"
 #include "core/core.h"
+#include "core/frontend/emu_window.h"
 #include "core/hle/kernel/process.h"
 #include "core/settings.h"
 #include "video_core/engines/maxwell_3d.h"
@@ -22,6 +23,7 @@
 #include "video_core/renderer_opengl/gl_shader_gen.h"
 #include "video_core/renderer_opengl/maxwell_to_gl.h"
 #include "video_core/renderer_opengl/renderer_opengl.h"
+#include "video_core/video_core.h"
 
 using Maxwell = Tegra::Engines::Maxwell3D::Regs;
 using PixelFormat = SurfaceParams::PixelFormat;
@@ -181,6 +183,19 @@ std::pair<u8*, GLintptr> RasterizerOpenGL::SetupVertexArrays(u8* array_ptr,
     return {array_ptr, buffer_offset};
 }
 
+static GLShader::ProgramCode GetShaderProgramCode(Maxwell::ShaderProgram program) {
+    auto& gpu = Core::System().GetInstance().GPU().Maxwell3D();
+
+    // Fetch program code from memory
+    GLShader::ProgramCode program_code;
+    auto& shader_config = gpu.regs.shader_config[static_cast<size_t>(program)];
+    const u64 gpu_address{gpu.regs.code_address.CodeAddress() + shader_config.offset};
+    const boost::optional<VAddr> cpu_address{gpu.memory_manager.GpuToCpuAddress(gpu_address)};
+    Memory::ReadBlock(*cpu_address, program_code.data(), program_code.size() * sizeof(u64));
+
+    return program_code;
+}
+
 void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
     // Helper function for uploading uniform data
     const auto copy_buffer = [&](GLuint handle, GLintptr offset, GLsizeiptr size) {
@@ -193,26 +208,23 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
     };
 
     auto& gpu = Core::System().GetInstance().GPU().Maxwell3D();
-    ASSERT_MSG(!gpu.regs.shader_config[0].enable, "VertexA is unsupported!");
 
     // Next available bindpoints to use when uploading the const buffers and textures to the GLSL
     // shaders. The constbuffer bindpoint starts after the shader stage configuration bind points.
     u32 current_constbuffer_bindpoint = uniform_buffers.size();
     u32 current_texture_bindpoint = 0;
 
-    for (unsigned index = 1; index < Maxwell::MaxShaderProgram; ++index) {
+    for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
         auto& shader_config = gpu.regs.shader_config[index];
         const Maxwell::ShaderProgram program{static_cast<Maxwell::ShaderProgram>(index)};
 
-        const auto& stage = index - 1; // Stage indices are 0 - 5
-
-        const bool is_enabled = gpu.IsShaderStageEnabled(static_cast<Maxwell::ShaderStage>(stage));
-
         // Skip stages that are not enabled
-        if (!is_enabled) {
+        if (!gpu.regs.IsShaderConfigEnabled(index)) {
             continue;
         }
 
+        const size_t stage{index == 0 ? 0 : index - 1}; // Stage indices are 0 - 5
+
         GLShader::MaxwellUniformData ubo{};
         ubo.SetFromRegs(gpu.state.shader_stages[stage]);
         std::memcpy(buffer_ptr, &ubo, sizeof(ubo));
@@ -228,16 +240,21 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
         buffer_ptr += sizeof(GLShader::MaxwellUniformData);
         buffer_offset += sizeof(GLShader::MaxwellUniformData);
 
-        // Fetch program code from memory
-        GLShader::ProgramCode program_code;
-        const u64 gpu_address{gpu.regs.code_address.CodeAddress() + shader_config.offset};
-        const boost::optional<VAddr> cpu_address{gpu.memory_manager.GpuToCpuAddress(gpu_address)};
-        Memory::ReadBlock(*cpu_address, program_code.data(), program_code.size() * sizeof(u64));
-        GLShader::ShaderSetup setup{std::move(program_code)};
-
+        GLShader::ShaderSetup setup{GetShaderProgramCode(program)};
         GLShader::ShaderEntries shader_resources;
 
         switch (program) {
+        case Maxwell::ShaderProgram::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(GetShaderProgramCode(Maxwell::ShaderProgram::VertexB));
+            GLShader::MaxwellVSConfig vs_config{setup};
+            shader_resources =
+                shader_program_manager->UseProgrammableVertexShader(vs_config, setup);
+            break;
+        }
+
         case Maxwell::ShaderProgram::VertexB: {
             GLShader::MaxwellVSConfig vs_config{setup};
             shader_resources =
@@ -268,6 +285,12 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
         current_texture_bindpoint =
             SetupTextures(static_cast<Maxwell::ShaderStage>(stage), gl_stage_program,
                           current_texture_bindpoint, shader_resources.texture_samplers);
+
+        // When VertexA is enabled, we have dual vertex shaders
+        if (program == Maxwell::ShaderProgram::VertexA) {
+            // VertexB was combined with VertexA, so we skip the VertexB iteration
+            index++;
+        }
     }
 
     shader_program_manager->UseTrivialGeometryShader();
@@ -301,9 +324,6 @@ std::pair<Surface, Surface> RasterizerOpenGL::ConfigureFramebuffers(bool using_c
                                                                     bool using_depth_fb) {
     const auto& regs = Core::System().GetInstance().GPU().Maxwell3D().regs;
 
-    // Sync the depth test state before configuring the framebuffer surfaces.
-    SyncDepthTestState();
-
     // TODO(bunnei): Implement this
     const bool has_stencil = false;
 
@@ -368,11 +388,20 @@ void RasterizerOpenGL::Clear() {
     if (regs.clear_buffers.Z) {
         clear_mask |= GL_DEPTH_BUFFER_BIT;
         use_depth_fb = true;
+
+        // Always enable the depth write when clearing the depth buffer. The depth write mask is
+        // ignored when clearing the buffer in the Switch, but OpenGL obeys it so we set it to true.
+        state.depth.test_enabled = true;
+        state.depth.write_mask = GL_TRUE;
+        state.depth.test_func = GL_ALWAYS;
+        state.Apply();
     }
 
     if (clear_mask == 0)
         return;
 
+    ScopeAcquireGLContext acquire_context;
+
     auto [dirty_color_surface, dirty_depth_surface] =
         ConfigureFramebuffers(use_color_fb, use_depth_fb);
 
@@ -399,9 +428,12 @@ void RasterizerOpenGL::DrawArrays() {
     MICROPROFILE_SCOPE(OpenGL_Drawing);
     const auto& regs = Core::System().GetInstance().GPU().Maxwell3D().regs;
 
+    ScopeAcquireGLContext acquire_context;
+
     auto [dirty_color_surface, dirty_depth_surface] =
         ConfigureFramebuffers(true, regs.zeta.Address() != 0);
 
+    SyncDepthTestState();
     SyncBlendState();
     SyncCullMode();
 
@@ -605,9 +637,6 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, GLuint progr
     auto& gpu = Core::System::GetInstance().GPU();
     auto& maxwell3d = gpu.Get3DEngine();
 
-    ASSERT_MSG(maxwell3d.IsShaderStageEnabled(stage),
-               "Attempted to upload constbuffer of disabled shader stage");
-
     // Reset all buffer draw state for this stage.
     for (auto& buffer : state.draw.const_buffers[static_cast<size_t>(stage)]) {
         buffer.bindpoint = 0;
@@ -674,9 +703,6 @@ u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, GLuint program,
     auto& gpu = Core::System::GetInstance().GPU();
     auto& maxwell3d = gpu.Get3DEngine();
 
-    ASSERT_MSG(maxwell3d.IsShaderStageEnabled(stage),
-               "Attempted to upload textures of disabled shader stage");
-
     ASSERT_MSG(current_unit + entries.size() <= std::size(state.texture_units),
                "Exceeded the number of active textures.");
 
@@ -775,10 +801,13 @@ void RasterizerOpenGL::SyncCullMode() {
         state.cull.front_face = MaxwellToGL::FrontFace(regs.cull.front_face);
         state.cull.mode = MaxwellToGL::CullFace(regs.cull.cull_face);
 
+        const bool flip_triangles{regs.screen_y_control.triangle_rast_flip == 0 ||
+                                  regs.viewport_transform[0].scale_y < 0.0f};
+
         // If the GPU is configured to flip the rasterized triangles, then we need to flip the
         // notion of front and back. Note: We flip the triangles when the value of the register is 0
         // because OpenGL already does it for us.
-        if (regs.screen_y_control.triangle_rast_flip == 0) {
+        if (flip_triangles) {
             if (state.cull.front_face == GL_CCW)
                 state.cull.front_face = GL_CW;
             else if (state.cull.front_face == GL_CW)

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -271,9 +271,10 @@ static void ConvertS8Z24ToZ24S8(std::vector<u8>& data, u32 width, u32 height) {
 
     S8Z24 input_pixel{};
     Z24S8 output_pixel{};
+
     for (size_t y = 0; y < height; ++y) {
         for (size_t x = 0; x < width; ++x) {
-            const size_t offset{y * width + x};
+            const size_t offset{4 * (y * width + x)};
             std::memcpy(&input_pixel, &data[offset], sizeof(S8Z24));
             output_pixel.s8.Assign(input_pixel.s8);
             output_pixel.z24.Assign(input_pixel.z24);

src/video_core/renderer_opengl/gl_shader_decompiler.cpp

@@ -42,13 +42,14 @@ enum class ExitMethod {
 struct Subroutine {
     /// Generates a name suitable for GLSL source code.
     std::string GetName() const {
-        return "sub_" + std::to_string(begin) + '_' + std::to_string(end);
+        return "sub_" + std::to_string(begin) + '_' + std::to_string(end) + '_' + suffix;
     }
 
-    u32 begin;              ///< Entry point of the subroutine.
-    u32 end;                ///< Return point of the subroutine.
-    ExitMethod exit_method; ///< Exit method of the subroutine.
-    std::set<u32> labels;   ///< Addresses refereced by JMP instructions.
+    u32 begin;                 ///< Entry point of the subroutine.
+    u32 end;                   ///< Return point of the subroutine.
+    const std::string& suffix; ///< Suffix of the shader, used to make a unique subroutine name
+    ExitMethod exit_method;    ///< Exit method of the subroutine.
+    std::set<u32> labels;      ///< Addresses refereced by JMP instructions.
 
     bool operator<(const Subroutine& rhs) const {
         return std::tie(begin, end) < std::tie(rhs.begin, rhs.end);
@@ -58,11 +59,11 @@ struct Subroutine {
 /// Analyzes shader code and produces a set of subroutines.
 class ControlFlowAnalyzer {
 public:
-    ControlFlowAnalyzer(const ProgramCode& program_code, u32 main_offset)
+    ControlFlowAnalyzer(const ProgramCode& program_code, u32 main_offset, const std::string& suffix)
         : program_code(program_code) {
 
         // Recursively finds all subroutines.
-        const Subroutine& program_main = AddSubroutine(main_offset, PROGRAM_END);
+        const Subroutine& program_main = AddSubroutine(main_offset, PROGRAM_END, suffix);
         if (program_main.exit_method != ExitMethod::AlwaysEnd)
             throw DecompileFail("Program does not always end");
     }
@@ -77,12 +78,12 @@ private:
     std::map<std::pair<u32, u32>, ExitMethod> exit_method_map;
 
     /// Adds and analyzes a new subroutine if it is not added yet.
-    const Subroutine& AddSubroutine(u32 begin, u32 end) {
-        auto iter = subroutines.find(Subroutine{begin, end});
+    const Subroutine& AddSubroutine(u32 begin, u32 end, const std::string& suffix) {
+        auto iter = subroutines.find(Subroutine{begin, end, suffix});
         if (iter != subroutines.end())
             return *iter;
 
-        Subroutine subroutine{begin, end};
+        Subroutine subroutine{begin, end, suffix};
         subroutine.exit_method = Scan(begin, end, subroutine.labels);
         if (subroutine.exit_method == ExitMethod::Undetermined)
             throw DecompileFail("Recursive function detected");
@@ -191,7 +192,8 @@ public:
         UnsignedInteger,
     };
 
-    GLSLRegister(size_t index, ShaderWriter& shader) : index{index}, shader{shader} {}
+    GLSLRegister(size_t index, ShaderWriter& shader, const std::string& suffix)
+        : index{index}, shader{shader}, suffix{suffix} {}
 
     /// Gets the GLSL type string for a register
     static std::string GetTypeString(Type type) {
@@ -216,7 +218,7 @@ public:
     /// Returns a GLSL string representing the current state of the register
     const std::string GetActiveString() {
         declr_type.insert(active_type);
-        return GetPrefixString(active_type) + std::to_string(index);
+        return GetPrefixString(active_type) + std::to_string(index) + '_' + suffix;
     }
 
     /// Returns true if the active type is a float
@@ -251,6 +253,7 @@ private:
     ShaderWriter& shader;
     Type active_type{Type::Float};
     std::set<Type> declr_type;
+    const std::string& suffix;
 };
 
 /**
@@ -262,8 +265,8 @@ private:
 class GLSLRegisterManager {
 public:
     GLSLRegisterManager(ShaderWriter& shader, ShaderWriter& declarations,
-                        const Maxwell3D::Regs::ShaderStage& stage)
-        : shader{shader}, declarations{declarations}, stage{stage} {
+                        const Maxwell3D::Regs::ShaderStage& stage, const std::string& suffix)
+        : shader{shader}, declarations{declarations}, stage{stage}, suffix{suffix} {
         BuildRegisterList();
     }
 
@@ -430,12 +433,12 @@ public:
     }
 
     /// Add declarations for registers
-    void GenerateDeclarations() {
+    void GenerateDeclarations(const std::string& suffix) {
         for (const auto& reg : regs) {
             for (const auto& type : reg.DeclaredTypes()) {
                 declarations.AddLine(GLSLRegister::GetTypeString(type) + ' ' +
-                                     GLSLRegister::GetPrefixString(type) +
-                                     std::to_string(reg.GetIndex()) + " = 0;");
+                                     reg.GetPrefixString(type) + std::to_string(reg.GetIndex()) +
+                                     '_' + suffix + " = 0;");
             }
         }
         declarations.AddNewLine();
@@ -558,7 +561,7 @@ private:
     /// Build the GLSL register list.
     void BuildRegisterList() {
         for (size_t index = 0; index < Register::NumRegisters; ++index) {
-            regs.emplace_back(index, shader);
+            regs.emplace_back(index, shader, suffix);
         }
     }
 
@@ -620,16 +623,17 @@ private:
     std::array<ConstBufferEntry, Maxwell3D::Regs::MaxConstBuffers> declr_const_buffers;
     std::vector<SamplerEntry> used_samplers;
     const Maxwell3D::Regs::ShaderStage& stage;
+    const std::string& suffix;
 };
 
 class GLSLGenerator {
 public:
     GLSLGenerator(const std::set<Subroutine>& subroutines, const ProgramCode& program_code,
-                  u32 main_offset, Maxwell3D::Regs::ShaderStage stage)
+                  u32 main_offset, Maxwell3D::Regs::ShaderStage stage, const std::string& suffix)
         : subroutines(subroutines), program_code(program_code), main_offset(main_offset),
-          stage(stage) {
+          stage(stage), suffix(suffix) {
 
-        Generate();
+        Generate(suffix);
     }
 
     std::string GetShaderCode() {
@@ -644,7 +648,7 @@ public:
 private:
     /// Gets the Subroutine object corresponding to the specified address.
     const Subroutine& GetSubroutine(u32 begin, u32 end) const {
-        auto iter = subroutines.find(Subroutine{begin, end});
+        auto iter = subroutines.find(Subroutine{begin, end, suffix});
         ASSERT(iter != subroutines.end());
         return *iter;
     }
@@ -689,7 +693,7 @@ private:
         // Can't assign to the constant predicate.
         ASSERT(pred != static_cast<u64>(Pred::UnusedIndex));
 
-        std::string variable = 'p' + std::to_string(pred);
+        std::string variable = 'p' + std::to_string(pred) + '_' + suffix;
         shader.AddLine(variable + " = " + value + ';');
         declr_predicates.insert(std::move(variable));
     }
@@ -707,7 +711,7 @@ private:
         if (index == static_cast<u64>(Pred::UnusedIndex))
             variable = "true";
         else
-            variable = 'p' + std::to_string(index);
+            variable = 'p' + std::to_string(index) + '_' + suffix;
 
         if (negate) {
             return "!(" + variable + ')';
@@ -728,10 +732,10 @@ private:
                                        const std::string& op_a, const std::string& op_b) const {
         using Tegra::Shader::PredCondition;
         static const std::unordered_map<PredCondition, const char*> PredicateComparisonStrings = {
-            {PredCondition::LessThan, "<"},         {PredCondition::Equal, "=="},
-            {PredCondition::LessEqual, "<="},       {PredCondition::GreaterThan, ">"},
-            {PredCondition::NotEqual, "!="},        {PredCondition::GreaterEqual, ">="},
-            {PredCondition::NotEqualWithNan, "!="},
+            {PredCondition::LessThan, "<"},        {PredCondition::Equal, "=="},
+            {PredCondition::LessEqual, "<="},      {PredCondition::GreaterThan, ">"},
+            {PredCondition::NotEqual, "!="},       {PredCondition::GreaterEqual, ">="},
+            {PredCondition::LessThanWithNan, "<"}, {PredCondition::NotEqualWithNan, "!="},
         };
 
         const auto& comparison{PredicateComparisonStrings.find(condition)};
@@ -739,7 +743,8 @@ private:
                    "Unknown predicate comparison operation");
 
         std::string predicate{'(' + op_a + ") " + comparison->second + " (" + op_b + ')'};
-        if (condition == PredCondition::NotEqualWithNan) {
+        if (condition == PredCondition::LessThanWithNan ||
+            condition == PredCondition::NotEqualWithNan) {
             predicate += " || isnan(" + op_a + ") || isnan(" + op_b + ')';
         }
 
@@ -968,6 +973,29 @@ private:
                     regs.GetRegisterAsFloat(instr.gpr8) + " * " + GetImmediate32(instr), 1, 1);
                 break;
             }
+            case OpCode::Id::FADD32I: {
+                std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
+                std::string op_b = GetImmediate32(instr);
+
+                if (instr.fadd32i.abs_a) {
+                    op_a = "abs(" + op_a + ')';
+                }
+
+                if (instr.fadd32i.negate_a) {
+                    op_a = "-(" + op_a + ')';
+                }
+
+                if (instr.fadd32i.abs_b) {
+                    op_b = "abs(" + op_b + ')';
+                }
+
+                if (instr.fadd32i.negate_b) {
+                    op_b = "-(" + op_b + ')';
+                }
+
+                regs.SetRegisterToFloat(instr.gpr0, 0, op_a + " + " + op_b, 1, 1);
+                break;
+            }
             }
             break;
         }
@@ -1616,16 +1644,32 @@ private:
                     shader.AddLine("color.a = " + regs.GetRegisterAsFloat(3) + ';');
                 }
 
-                shader.AddLine("return true;");
-                if (instr.pred.pred_index == static_cast<u64>(Pred::UnusedIndex)) {
-                    // If this is an unconditional exit then just end processing here, otherwise
-                    // we have to account for the possibility of the condition not being met, so
-                    // continue processing the next instruction.
-                    offset = PROGRAM_END - 1;
+                switch (instr.flow.cond) {
+                case Tegra::Shader::FlowCondition::Always:
+                    shader.AddLine("return true;");
+                    if (instr.pred.pred_index == static_cast<u64>(Pred::UnusedIndex)) {
+                        // If this is an unconditional exit then just end processing here,
+                        // otherwise we have to account for the possibility of the condition
+                        // not being met, so continue processing the next instruction.
+                        offset = PROGRAM_END - 1;
+                    }
+                    break;
+
+                case Tegra::Shader::FlowCondition::Fcsm_Tr:
+                    // TODO(bunnei): What is this used for? If we assume this conditon is not
+                    // satisifed, dual vertex shaders in Farming Simulator make more sense
+                    LOG_CRITICAL(HW_GPU, "Skipping unknown FlowCondition::Fcsm_Tr");
+                    break;
+
+                default:
+                    LOG_CRITICAL(HW_GPU, "Unhandled flow condition: {}",
+                                 static_cast<u32>(instr.flow.cond.Value()));
+                    UNREACHABLE();
                 }
                 break;
             }
             case OpCode::Id::KIL: {
+                ASSERT(instr.flow.cond == Tegra::Shader::FlowCondition::Always);
                 shader.AddLine("discard;");
                 break;
             }
@@ -1646,8 +1690,9 @@ private:
                 // can ignore this when generating GLSL code.
                 break;
             }
-            case OpCode::Id::DEPBAR:
-            case OpCode::Id::SYNC: {
+            case OpCode::Id::SYNC:
+                ASSERT(instr.flow.cond == Tegra::Shader::FlowCondition::Always);
+            case OpCode::Id::DEPBAR: {
                 // TODO(Subv): Find out if we actually have to care about these instructions or if
                 // the GLSL compiler takes care of that for us.
                 LOG_WARNING(HW_GPU, "DEPBAR/SYNC instruction is stubbed");
@@ -1687,7 +1732,7 @@ private:
         return program_counter;
     }
 
-    void Generate() {
+    void Generate(const std::string& suffix) {
         // Add declarations for all subroutines
         for (const auto& subroutine : subroutines) {
             shader.AddLine("bool " + subroutine.GetName() + "();");
@@ -1695,7 +1740,7 @@ private:
         shader.AddNewLine();
 
         // Add the main entry point
-        shader.AddLine("bool exec_shader() {");
+        shader.AddLine("bool exec_" + suffix + "() {");
         ++shader.scope;
         CallSubroutine(GetSubroutine(main_offset, PROGRAM_END));
         --shader.scope;
@@ -1758,7 +1803,7 @@ private:
 
     /// Add declarations for registers
     void GenerateDeclarations() {
-        regs.GenerateDeclarations();
+        regs.GenerateDeclarations(suffix);
 
         for (const auto& pred : declr_predicates) {
             declarations.AddLine("bool " + pred + " = false;");
@@ -1771,27 +1816,30 @@ private:
     const ProgramCode& program_code;
     const u32 main_offset;
     Maxwell3D::Regs::ShaderStage stage;
+    const std::string& suffix;
 
     ShaderWriter shader;
     ShaderWriter declarations;
-    GLSLRegisterManager regs{shader, declarations, stage};
+    GLSLRegisterManager regs{shader, declarations, stage, suffix};
 
     // Declarations
     std::set<std::string> declr_predicates;
 }; // namespace Decompiler
 
 std::string GetCommonDeclarations() {
-    std::string declarations = "bool exec_shader();\n";
+    std::string declarations;
     declarations += "#define MAX_CONSTBUFFER_ELEMENTS " +
                     std::to_string(RasterizerOpenGL::MaxConstbufferSize / (sizeof(GLvec4)));
+    declarations += '\n';
     return declarations;
 }
 
 boost::optional<ProgramResult> DecompileProgram(const ProgramCode& program_code, u32 main_offset,
-                                                Maxwell3D::Regs::ShaderStage stage) {
+                                                Maxwell3D::Regs::ShaderStage stage,
+                                                const std::string& suffix) {
     try {
-        auto subroutines = ControlFlowAnalyzer(program_code, main_offset).GetSubroutines();
-        GLSLGenerator generator(subroutines, program_code, main_offset, stage);
+        auto subroutines = ControlFlowAnalyzer(program_code, main_offset, suffix).GetSubroutines();
+        GLSLGenerator generator(subroutines, program_code, main_offset, stage, suffix);
         return ProgramResult{generator.GetShaderCode(), generator.GetEntries()};
     } catch (const DecompileFail& exception) {
         LOG_ERROR(HW_GPU, "Shader decompilation failed: {}", exception.what());

src/video_core/renderer_opengl/gl_shader_decompiler.h

@@ -20,7 +20,8 @@ using Tegra::Engines::Maxwell3D;
 std::string GetCommonDeclarations();
 
 boost::optional<ProgramResult> DecompileProgram(const ProgramCode& program_code, u32 main_offset,
-                                                Maxwell3D::Regs::ShaderStage stage);
+                                                Maxwell3D::Regs::ShaderStage stage,
+                                                const std::string& suffix);
 
 } // namespace Decompiler
 } // namespace GLShader

src/video_core/renderer_opengl/gl_shader_gen.cpp

@@ -17,10 +17,17 @@ ProgramResult GenerateVertexShader(const ShaderSetup& setup, const MaxwellVSConf
     std::string out = "#version 430 core\n";
     out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
     out += Decompiler::GetCommonDeclarations();
+    out += "bool exec_vertex();\n";
+
+    if (setup.IsDualProgram()) {
+        out += "bool exec_vertex_b();\n";
+    }
+
+    ProgramResult program =
+        Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
+                                     Maxwell3D::Regs::ShaderStage::Vertex, "vertex")
+            .get_value_or({});
 
-    ProgramResult program = Decompiler::DecompileProgram(setup.program_code, PROGRAM_OFFSET,
-                                                         Maxwell3D::Regs::ShaderStage::Vertex)
-                                .get_value_or({});
     out += R"(
 
 out gl_PerVertex {
@@ -34,7 +41,14 @@ layout (std140) uniform vs_config {
 };
 
 void main() {
-    exec_shader();
+    exec_vertex();
+)";
+
+    if (setup.IsDualProgram()) {
+        out += "    exec_vertex_b();";
+    }
+
+    out += R"(
 
     // Viewport can be flipped, which is unsupported by glViewport
     position.xy *= viewport_flip.xy;
@@ -44,8 +58,19 @@ void main() {
     // For now, this is here to bring order in lieu of proper emulation
     position.w = 1.0;
 }
+
 )";
+
     out += program.first;
+
+    if (setup.IsDualProgram()) {
+        ProgramResult program_b =
+            Decompiler::DecompileProgram(setup.program.code_b, PROGRAM_OFFSET,
+                                         Maxwell3D::Regs::ShaderStage::Vertex, "vertex_b")
+                .get_value_or({});
+        out += program_b.first;
+    }
+
     return {out, program.second};
 }
 
@@ -53,12 +78,13 @@ ProgramResult GenerateFragmentShader(const ShaderSetup& setup, const MaxwellFSCo
     std::string out = "#version 430 core\n";
     out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
     out += Decompiler::GetCommonDeclarations();
+    out += "bool exec_fragment();\n";
 
-    ProgramResult program = Decompiler::DecompileProgram(setup.program_code, PROGRAM_OFFSET,
-                                                         Maxwell3D::Regs::ShaderStage::Fragment)
-                                .get_value_or({});
+    ProgramResult program =
+        Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
+                                     Maxwell3D::Regs::ShaderStage::Fragment, "fragment")
+            .get_value_or({});
     out += R"(
-
 in vec4 position;
 out vec4 color;
 
@@ -67,7 +93,7 @@ layout (std140) uniform fs_config {
 };
 
 void main() {
-    exec_shader();
+    exec_fragment();
 }
 
 )";

src/video_core/renderer_opengl/gl_shader_gen.h

@@ -115,21 +115,48 @@ struct ShaderEntries {
 using ProgramResult = std::pair<std::string, ShaderEntries>;
 
 struct ShaderSetup {
-    ShaderSetup(ProgramCode&& program_code) : program_code(std::move(program_code)) {}
+    ShaderSetup(const ProgramCode& program_code) {
+        program.code = program_code;
+    }
+
+    struct {
+        ProgramCode code;
+        ProgramCode code_b; // Used for dual vertex shaders
+    } program;
 
-    ProgramCode program_code;
     bool program_code_hash_dirty = true;
 
     u64 GetProgramCodeHash() {
         if (program_code_hash_dirty) {
-            program_code_hash = Common::ComputeHash64(&program_code, sizeof(program_code));
+            program_code_hash = GetNewHash();
             program_code_hash_dirty = false;
         }
         return program_code_hash;
     }
 
+    /// Used in scenarios where we have a dual vertex shaders
+    void SetProgramB(const ProgramCode& program_b) {
+        program.code_b = program_b;
+        has_program_b = true;
+    }
+
+    bool IsDualProgram() const {
+        return has_program_b;
+    }
+
 private:
+    u64 GetNewHash() const {
+        if (has_program_b) {
+            // Compute hash over dual shader programs
+            return Common::ComputeHash64(&program, sizeof(program));
+        } else {
+            // Compute hash over a single shader program
+            return Common::ComputeHash64(&program.code, program.code.size());
+        }
+    }
+
     u64 program_code_hash{};
+    bool has_program_b{};
 };
 
 struct MaxwellShaderConfigCommon {

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -92,11 +92,24 @@ static std::array<GLfloat, 3 * 2> MakeOrthographicMatrix(const float width, cons
     return matrix;
 }
 
+ScopeAcquireGLContext::ScopeAcquireGLContext() {
+    if (Settings::values.use_multi_core) {
+        VideoCore::g_emu_window->MakeCurrent();
+    }
+}
+ScopeAcquireGLContext::~ScopeAcquireGLContext() {
+    if (Settings::values.use_multi_core) {
+        VideoCore::g_emu_window->DoneCurrent();
+    }
+}
+
 RendererOpenGL::RendererOpenGL() = default;
 RendererOpenGL::~RendererOpenGL() = default;
 
 /// Swap buffers (render frame)
 void RendererOpenGL::SwapBuffers(boost::optional<const Tegra::FramebufferConfig&> framebuffer) {
+    ScopeAcquireGLContext acquire_context;
+
     Core::System::GetInstance().perf_stats.EndSystemFrame();
 
     // Maintain the rasterizer's state as a priority
@@ -418,7 +431,7 @@ static void APIENTRY DebugHandler(GLenum source, GLenum type, GLuint id, GLenum
 
 /// Initialize the renderer
 bool RendererOpenGL::Init() {
-    render_window->MakeCurrent();
+    ScopeAcquireGLContext acquire_context;
 
     if (GLAD_GL_KHR_debug) {
         glEnable(GL_DEBUG_OUTPUT);

src/video_core/renderer_opengl/renderer_opengl.h

@@ -31,6 +31,13 @@ struct ScreenInfo {
     TextureInfo texture;
 };
 
+/// Helper class to acquire/release OpenGL context within a given scope
+class ScopeAcquireGLContext : NonCopyable {
+public:
+    ScopeAcquireGLContext();
+    ~ScopeAcquireGLContext();
+};
+
 class RendererOpenGL : public RendererBase {
 public:
     RendererOpenGL();

src/yuzu/bootmanager.cpp

@@ -20,7 +20,10 @@
 EmuThread::EmuThread(GRenderWindow* render_window) : render_window(render_window) {}
 
 void EmuThread::run() {
-    render_window->MakeCurrent();
+    if (!Settings::values.use_multi_core) {
+        // Single core mode must acquire OpenGL context for entire emulation session
+        render_window->MakeCurrent();
+    }
 
     MicroProfileOnThreadCreate("EmuThread");
 
@@ -127,13 +130,14 @@ void GRenderWindow::moveContext() {
 }
 
 void GRenderWindow::SwapBuffers() {
-#if !defined(QT_NO_DEBUG)
-    // Qt debug runtime prints a bogus warning on the console if you haven't called makeCurrent
-    // since the last time you called swapBuffers. This presumably means something if you're using
-    // QGLWidget the "regular" way, but in our multi-threaded use case is harmless since we never
-    // call doneCurrent in this thread.
+    // In our multi-threaded QGLWidget use case we shouldn't need to call `makeCurrent`,
+    // since we never call `doneCurrent` in this thread.
+    // However:
+    // - The Qt debug runtime prints a bogus warning on the console if `makeCurrent` wasn't called
+    // since the last time `swapBuffers` was executed;
+    // - On macOS, if `makeCurrent` isn't called explicitely, resizing the buffer breaks.
     child->makeCurrent();
-#endif
+
     child->swapBuffers();
 }
 

src/yuzu/debugger/console.cpp

@@ -14,6 +14,13 @@
 
 namespace Debugger {
 void ToggleConsole() {
+    static bool console_shown = false;
+    if (console_shown == UISettings::values.show_console) {
+        return;
+    } else {
+        console_shown = UISettings::values.show_console;
+    }
+
 #if defined(_WIN32) && !defined(_DEBUG)
     FILE* temp;
     if (UISettings::values.show_console) {

src/yuzu/main.cpp

@@ -374,6 +374,8 @@ bool GMainWindow::LoadROM(const QString& filename) {
 
     const Core::System::ResultStatus result{system.Load(render_window, filename.toStdString())};
 
+    render_window->DoneCurrent();
+
     if (result != Core::System::ResultStatus::Success) {
         switch (result) {
         case Core::System::ResultStatus::ErrorGetLoader:
@@ -908,8 +910,6 @@ void GMainWindow::UpdateUITheme() {
 #endif
 
 int main(int argc, char* argv[]) {
-    Log::AddBackend(std::make_unique<Log::ColorConsoleBackend>());
-
     MicroProfileOnThreadCreate("Frontend");
     SCOPE_EXIT({ MicroProfileShutdown(); });
 
@@ -918,6 +918,7 @@ int main(int argc, char* argv[]) {
     QCoreApplication::setApplicationName("yuzu");
 
     QApplication::setAttribute(Qt::AA_X11InitThreads);
+    QApplication::setAttribute(Qt::AA_DontCheckOpenGLContextThreadAffinity);
     QApplication app(argc, argv);
 
     // Qt changes the locale and causes issues in float conversion using std::to_string() when

src/yuzu_cmd/emu_window/emu_window_sdl2.cpp

@@ -126,7 +126,7 @@ EmuWindow_SDL2::EmuWindow_SDL2(bool fullscreen) {
                          SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
 
     if (render_window == nullptr) {
-        LOG_CRITICAL(Frontend, "Failed to create SDL2 window! Exiting...");
+        LOG_CRITICAL(Frontend, "Failed to create SDL2 window! {}", SDL_GetError());
         exit(1);
     }
 
@@ -137,12 +137,12 @@ EmuWindow_SDL2::EmuWindow_SDL2(bool fullscreen) {
     gl_context = SDL_GL_CreateContext(render_window);
 
     if (gl_context == nullptr) {
-        LOG_CRITICAL(Frontend, "Failed to create SDL2 GL context! Exiting...");
+        LOG_CRITICAL(Frontend, "Failed to create SDL2 GL context! {}", SDL_GetError());
         exit(1);
     }
 
     if (!gladLoadGLLoader(static_cast<GLADloadproc>(SDL_GL_GetProcAddress))) {
-        LOG_CRITICAL(Frontend, "Failed to initialize GL functions! Exiting...");
+        LOG_CRITICAL(Frontend, "Failed to initialize GL functions! {}", SDL_GetError());
         exit(1);
     }
 

src/yuzu_cmd/yuzu.cpp

@@ -22,10 +22,8 @@
 #include "yuzu_cmd/config.h"
 #include "yuzu_cmd/emu_window/emu_window_sdl2.h"
 
-#ifdef _MSC_VER
-#include <getopt.h>
-#else
 #include <getopt.h>
+#ifndef _MSC_VER
 #include <unistd.h>
 #endif
 
@@ -127,6 +125,7 @@ int main(int argc, char** argv) {
 #endif
 
     Log::Filter log_filter(Log::Level::Debug);
+    log_filter.ParseFilterString(Settings::values.log_filter);
     Log::SetGlobalFilter(log_filter);
 
     Log::AddBackend(std::make_unique<Log::ColorConsoleBackend>());
@@ -142,8 +141,6 @@ int main(int argc, char** argv) {
         return -1;
     }
 
-    log_filter.ParseFilterString(Settings::values.log_filter);
-
     // Apply the command line arguments
     Settings::values.gdbstub_port = gdb_port;
     Settings::values.use_gdbstub = use_gdbstub;
@@ -151,6 +148,11 @@ int main(int argc, char** argv) {
 
     std::unique_ptr<EmuWindow_SDL2> emu_window{std::make_unique<EmuWindow_SDL2>(fullscreen)};
 
+    if (!Settings::values.use_multi_core) {
+        // Single core mode must acquire OpenGL context for entire emulation session
+        emu_window->MakeCurrent();
+    }
+
     Core::System& system{Core::System::GetInstance()};
 
     SCOPE_EXIT({ system.Shutdown(); });