audout: Implement and fix some calls (#1725)

* audout: Implement GetAudioOutBufferCount, GetAudioOutPlayedSampleCount and FlushAudioOutBuffers

This PR implement audout service calls:
- GetAudioOutBufferCount
- GetAudioOutPlayedSampleCount
- FlushAudioOutBuffers

The RE calls just give some hints about no extra checks.
Since we use a totally different implementation because of our backend, I can't do something better for now.

SetAudioOutVolume and GetAudioOutVolume are fixed too by set/get the volume of the current opened track, previous implementation was wrong.

This fix #1133, fix #1258 and fix #1519.

Thanks to @jduncanator for this help during the implementation and all his precious advices.

* Fix some debug leftovers

* Address jD feedback

1 files changed, 12 insertions, 4 deletions

diff --git a/Ryujinx.Audio/Renderers/DummyAudioOut.cs b/Ryujinx.Audio/Renderers/DummyAudioOut.cs
index 2698b928..cd197592 100644
--- a/Ryujinx.Audio/Renderers/DummyAudioOut.cs
+++ b/Ryujinx.Audio/Renderers/DummyAudioOut.cs
@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Concurrent;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 
 namespace Ryujinx.Audio
@@ -15,6 +14,7 @@ namespace Ryujinx.Audio
         private ConcurrentQueue<int> _trackIds;
         private ConcurrentQueue<long> _buffers;
         private ConcurrentDictionary<int, ReleaseCallback> _releaseCallbacks;
+        private ulong _playedSampleCount;
 
         public DummyAudioOut()
         {
@@ -76,6 +76,8 @@ namespace Ryujinx.Audio
         {
             _buffers.Enqueue(bufferTag);
 
+            _playedSampleCount += (ulong)buffer.Length;
+
             if (_releaseCallbacks.TryGetValue(trackId, out var callback))
             {
                 callback?.Invoke();
@@ -86,9 +88,15 @@ namespace Ryujinx.Audio
 
         public void Stop(int trackId) { }
 
-        public float GetVolume() => _volume;
+        public uint GetBufferCount(int trackId) => (uint)_buffers.Count;
+
+        public ulong GetPlayedSampleCount(int trackId) => _playedSampleCount;
+
+        public bool FlushBuffers(int trackId) => false;
+
+        public float GetVolume(int trackId) => _volume;
 
-        public void SetVolume(float volume)
+        public void SetVolume(int trackId, float volume)
         {
             _volume = volume;
         }