service/audio: Remove global system accessors

Trims out the lingering reliance on global state out of the audio code.

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

@@ -19,16 +19,16 @@
 
 namespace Service::Audio {
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
     std::make_shared<AudCtl>()->InstallAsService(service_manager);
     std::make_shared<AudOutA>()->InstallAsService(service_manager);
-    std::make_shared<AudOutU>()->InstallAsService(service_manager);
+    std::make_shared<AudOutU>(system)->InstallAsService(service_manager);
     std::make_shared<AudInA>()->InstallAsService(service_manager);
     std::make_shared<AudInU>()->InstallAsService(service_manager);
     std::make_shared<AudRecA>()->InstallAsService(service_manager);
     std::make_shared<AudRecU>()->InstallAsService(service_manager);
     std::make_shared<AudRenA>()->InstallAsService(service_manager);
-    std::make_shared<AudRenU>()->InstallAsService(service_manager);
+    std::make_shared<AudRenU>(system)->InstallAsService(service_manager);
     std::make_shared<CodecCtl>()->InstallAsService(service_manager);
     std::make_shared<HwOpus>()->InstallAsService(service_manager);
 

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

@@ -4,6 +4,10 @@
 
 #pragma once
 
+namespace Core {
+class System;
+}
+
 namespace Service::SM {
 class ServiceManager;
 }
@@ -11,6 +15,6 @@ class ServiceManager;
 namespace Service::Audio {
 
 /// Registers all Audio services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
 
 } // namespace Service::Audio

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

@@ -40,8 +40,8 @@ enum class AudioState : u32 {
 
 class IAudioOut final : public ServiceFramework<IAudioOut> {
 public:
-    IAudioOut(AudoutParams audio_params, AudioCore::AudioOut& audio_core, std::string&& device_name,
+    IAudioOut(Core::System& system, AudoutParams audio_params, AudioCore::AudioOut& audio_core,
-              std::string&& unique_name)
+              std::string&& device_name, std::string&& unique_name)
         : ServiceFramework("IAudioOut"), audio_core(audio_core),
           device_name(std::move(device_name)), audio_params(audio_params) {
         // clang-format off
@@ -65,7 +65,6 @@ public:
         RegisterHandlers(functions);
 
         // This is the event handle used to check if the audio buffer was released
-        auto& system = Core::System::GetInstance();
         buffer_event = Kernel::WritableEvent::CreateEventPair(
             system.Kernel(), Kernel::ResetType::Manual, "IAudioOutBufferReleased");
 
@@ -212,6 +211,22 @@ private:
     Kernel::EventPair buffer_event;
 };
 
+AudOutU::AudOutU(Core::System& system_) : ServiceFramework("audout:u"), system{system_} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, &AudOutU::ListAudioOutsImpl, "ListAudioOuts"},
+        {1, &AudOutU::OpenAudioOutImpl, "OpenAudioOut"},
+        {2, &AudOutU::ListAudioOutsImpl, "ListAudioOutsAuto"},
+        {3, &AudOutU::OpenAudioOutImpl, "OpenAudioOutAuto"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+    audio_core = std::make_unique<AudioCore::AudioOut>();
+}
+
+AudOutU::~AudOutU() = default;
+
 void AudOutU::ListAudioOutsImpl(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_Audio, "called");
 
@@ -248,7 +263,7 @@ void AudOutU::OpenAudioOutImpl(Kernel::HLERequestContext& ctx) {
 
     std::string unique_name{fmt::format("{}-{}", device_name, audio_out_interfaces.size())};
     auto audio_out_interface = std::make_shared<IAudioOut>(
-        params, *audio_core, std::move(device_name), std::move(unique_name));
+        system, params, *audio_core, std::move(device_name), std::move(unique_name));
 
     IPC::ResponseBuilder rb{ctx, 6, 0, 1};
     rb.Push(RESULT_SUCCESS);
@@ -256,20 +271,9 @@ void AudOutU::OpenAudioOutImpl(Kernel::HLERequestContext& ctx) {
     rb.Push<u32>(params.channel_count);
     rb.Push<u32>(static_cast<u32>(AudioCore::Codec::PcmFormat::Int16));
     rb.Push<u32>(static_cast<u32>(AudioState::Stopped));
-    rb.PushIpcInterface<Audio::IAudioOut>(audio_out_interface);
+    rb.PushIpcInterface<IAudioOut>(audio_out_interface);
 
     audio_out_interfaces.push_back(std::move(audio_out_interface));
 }
 
-AudOutU::AudOutU() : ServiceFramework("audout:u") {
-    static const FunctionInfo functions[] = {{0, &AudOutU::ListAudioOutsImpl, "ListAudioOuts"},
-                                             {1, &AudOutU::OpenAudioOutImpl, "OpenAudioOut"},
-                                             {2, &AudOutU::ListAudioOutsImpl, "ListAudioOutsAuto"},
-                                             {3, &AudOutU::OpenAudioOutImpl, "OpenAudioOutAuto"}};
-    RegisterHandlers(functions);
-    audio_core = std::make_unique<AudioCore::AudioOut>();
-}
-
-AudOutU::~AudOutU() = default;
-
 } // namespace Service::Audio

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

@@ -11,6 +11,10 @@ namespace AudioCore {
 class AudioOut;
 }
 
+namespace Core {
+class System;
+}
+
 namespace Kernel {
 class HLERequestContext;
 }
@@ -21,15 +25,17 @@ class IAudioOut;
 
 class AudOutU final : public ServiceFramework<AudOutU> {
 public:
-    AudOutU();
+    explicit AudOutU(Core::System& system_);
     ~AudOutU() override;
 
 private:
+    void ListAudioOutsImpl(Kernel::HLERequestContext& ctx);
+    void OpenAudioOutImpl(Kernel::HLERequestContext& ctx);
+
     std::vector<std::shared_ptr<IAudioOut>> audio_out_interfaces;
     std::unique_ptr<AudioCore::AudioOut> audio_core;
 
-    void ListAudioOutsImpl(Kernel::HLERequestContext& ctx);
+    Core::System& system;
-    void OpenAudioOutImpl(Kernel::HLERequestContext& ctx);
 };
 
 } // namespace Service::Audio

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

@@ -26,7 +26,7 @@ namespace Service::Audio {
 
 class IAudioRenderer final : public ServiceFramework<IAudioRenderer> {
 public:
-    explicit IAudioRenderer(AudioCore::AudioRendererParameter audren_params,
+    explicit IAudioRenderer(Core::System& system, AudioCore::AudioRendererParameter audren_params,
                             const std::size_t instance_number)
         : ServiceFramework("IAudioRenderer") {
         // clang-format off
@@ -47,7 +47,6 @@ public:
         // clang-format on
         RegisterHandlers(functions);
 
-        auto& system = Core::System::GetInstance();
         system_event = Kernel::WritableEvent::CreateEventPair(
             system.Kernel(), Kernel::ResetType::Manual, "IAudioRenderer:SystemEvent");
         renderer = std::make_unique<AudioCore::AudioRenderer>(
@@ -161,7 +160,7 @@ private:
 
 class IAudioDevice final : public ServiceFramework<IAudioDevice> {
 public:
-    explicit IAudioDevice() : ServiceFramework("IAudioDevice") {
+    explicit IAudioDevice(Core::System& system) : ServiceFramework("IAudioDevice") {
         static const FunctionInfo functions[] = {
             {0, &IAudioDevice::ListAudioDeviceName, "ListAudioDeviceName"},
             {1, &IAudioDevice::SetAudioDeviceOutputVolume, "SetAudioDeviceOutputVolume"},
@@ -179,7 +178,7 @@ public:
         };
         RegisterHandlers(functions);
 
-        auto& kernel = Core::System::GetInstance().Kernel();
+        auto& kernel = system.Kernel();
         buffer_event = Kernel::WritableEvent::CreateEventPair(kernel, Kernel::ResetType::Automatic,
                                                               "IAudioOutBufferReleasedEvent");
 
@@ -277,7 +276,7 @@ private:
 
 }; // namespace Audio
 
-AudRenU::AudRenU() : ServiceFramework("audren:u") {
+AudRenU::AudRenU(Core::System& system_) : ServiceFramework("audren:u"), system{system_} {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, &AudRenU::OpenAudioRenderer, "OpenAudioRenderer"},
@@ -605,7 +604,7 @@ void AudRenU::GetAudioDeviceService(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
 
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<Audio::IAudioDevice>();
+    rb.PushIpcInterface<IAudioDevice>(system);
 }
 
 void AudRenU::OpenAudioRendererAuto(Kernel::HLERequestContext& ctx) {
@@ -619,9 +618,10 @@ void AudRenU::GetAudioDeviceServiceWithRevisionInfo(Kernel::HLERequestContext& c
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
 
+    // TODO(ogniK): Figure out what is different based on the current revision
+
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<Audio::IAudioDevice>(); // TODO(ogniK): Figure out what is different
+    rb.PushIpcInterface<IAudioDevice>(system);
-                                                // based on the current revision
 }
 
 void AudRenU::OpenAudioRendererImpl(Kernel::HLERequestContext& ctx) {
@@ -630,7 +630,7 @@ void AudRenU::OpenAudioRendererImpl(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
 
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IAudioRenderer>(params, audren_instance_count++);
+    rb.PushIpcInterface<IAudioRenderer>(system, params, audren_instance_count++);
 }
 
 bool AudRenU::IsFeatureSupported(AudioFeatures feature, u32_le revision) const {

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

@@ -6,6 +6,10 @@
 
 #include "core/hle/service/service.h"
 
+namespace Core {
+class System;
+}
+
 namespace Kernel {
 class HLERequestContext;
 }
@@ -14,7 +18,7 @@ namespace Service::Audio {
 
 class AudRenU final : public ServiceFramework<AudRenU> {
 public:
-    explicit AudRenU();
+    explicit AudRenU(Core::System& system_);
     ~AudRenU() override;
 
 private:
@@ -33,7 +37,9 @@ private:
     };
 
     bool IsFeatureSupported(AudioFeatures feature, u32_le revision) const;
+
     std::size_t audren_instance_count = 0;
+    Core::System& system;
 };
 
 } // namespace Service::Audio

src/core/hle/service/service.cpp

@@ -206,7 +206,7 @@ void Init(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system) {
     AM::InstallInterfaces(*sm, nv_flinger, system);
     AOC::InstallInterfaces(*sm);
     APM::InstallInterfaces(system);
-    Audio::InstallInterfaces(*sm);
+    Audio::InstallInterfaces(*sm, system);
     BCAT::InstallInterfaces(*sm);
     BPC::InstallInterfaces(*sm);
     BtDrv::InstallInterfaces(*sm);