From 112c20cef249c9637c1f14ce69f744116e9230b8 Mon Sep 17 00:00:00 2001
From: Billy Laws <blaws05@gmail.com>
Date: Sat, 30 Apr 2022 15:23:34 +0100
Subject: [PATCH] Stub QueryAudioDevice{Input,Output}Event

Used in many 3.0.0+ games
---
 .../skyline/services/audio/IAudioDevice.cpp   | 20 ++++++++++++++++++-
 .../cpp/skyline/services/audio/IAudioDevice.h | 13 ++++++++++--
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/app/src/main/cpp/skyline/services/audio/IAudioDevice.cpp b/app/src/main/cpp/skyline/services/audio/IAudioDevice.cpp
index ff44f845..58668b44 100644
--- a/app/src/main/cpp/skyline/services/audio/IAudioDevice.cpp
+++ b/app/src/main/cpp/skyline/services/audio/IAudioDevice.cpp
@@ -6,7 +6,11 @@
 #include "IAudioDevice.h"
 
 namespace skyline::service::audio {
-    IAudioDevice::IAudioDevice(const DeviceState &state, ServiceManager &manager) : systemEvent(std::make_shared<type::KEvent>(state, true)), BaseService(state, manager) {}
+    IAudioDevice::IAudioDevice(const DeviceState &state, ServiceManager &manager)
+        : BaseService(state, manager),
+          systemEvent(std::make_shared<type::KEvent>(state, true)),
+          outputEvent(std::make_shared<type::KEvent>(state, true)),
+          inputEvent(std::make_shared<type::KEvent>(state, true)) {}
 
     Result IAudioDevice::ListAudioDeviceName(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
         span buffer{request.outputBuf.at(0)};
@@ -44,4 +48,18 @@ namespace skyline::service::audio {
         response.Push<u32>(constant::StereoChannelCount);
         return {};
     }
+
+    Result IAudioDevice::QueryAudioDeviceInputEvent(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
+        auto handle{state.process->InsertItem(inputEvent)};
+        Logger::Debug("Audio Device Input Event Handle: 0x{:X}", handle);
+        response.copyHandles.push_back(handle);
+        return {};
+    }
+
+    Result IAudioDevice::QueryAudioDeviceOutputEvent(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
+        auto handle{state.process->InsertItem(outputEvent)};
+        Logger::Debug("Audio Device Output Event Handle: 0x{:X}", handle);
+        response.copyHandles.push_back(handle);
+        return {};
+    }
 }
diff --git a/app/src/main/cpp/skyline/services/audio/IAudioDevice.h b/app/src/main/cpp/skyline/services/audio/IAudioDevice.h
index 27a4f4f8..0a8a716b 100644
--- a/app/src/main/cpp/skyline/services/audio/IAudioDevice.h
+++ b/app/src/main/cpp/skyline/services/audio/IAudioDevice.h
@@ -12,7 +12,10 @@ namespace skyline::service::audio {
      */
     class IAudioDevice : public BaseService {
       private:
-        std::shared_ptr<type::KEvent> systemEvent; //!< The KEvent that is signalled on audio device changes
+        std::shared_ptr<type::KEvent> systemEvent; //!< Signalled on all audio device changes
+        std::shared_ptr<type::KEvent> inputEvent; //!< Signalled on audio input device changes
+        std::shared_ptr<type::KEvent> outputEvent; //!< Signalled on audio output device changes
+
 
       public:
         IAudioDevice(const DeviceState &state, ServiceManager &manager);
@@ -44,6 +47,10 @@ namespace skyline::service::audio {
          */
         Result GetActiveChannelCount(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
 
+        Result QueryAudioDeviceInputEvent(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+
+        Result QueryAudioDeviceOutputEvent(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+
         SERVICE_DECL(
             SFUNC(0x0, IAudioDevice, ListAudioDeviceName),
             SFUNC(0x1, IAudioDevice, SetAudioDeviceOutputVolume),
@@ -52,7 +59,9 @@ namespace skyline::service::audio {
             SFUNC(0x5, IAudioDevice, GetActiveChannelCount),
             SFUNC(0x6, IAudioDevice, ListAudioDeviceName),
             SFUNC(0x7, IAudioDevice, SetAudioDeviceOutputVolume),
-            SFUNC(0xA, IAudioDevice, GetActiveAudioDeviceName)
+            SFUNC(0xA, IAudioDevice, GetActiveAudioDeviceName),
+            SFUNC(0xB, IAudioDevice, QueryAudioDeviceInputEvent),
+            SFUNC(0xC, IAudioDevice, QueryAudioDeviceOutputEvent)
         )
     };
 }