audren: implement Renderer Info output informations (#1179)

This implement the rendering information output informations of
RequestUpdate.

This is needed by some games to keep track of the count of update on the
DSP.

Ryujinx.HLE/HOS/Services/Audio/AudioRendererManager/IAudioRenderer.cs

@@ -40,6 +40,8 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
 
         private PlayState _playState;
 
+        private ulong _elapsedFrameCount;
+
         public IAudioRenderer(
             Horizon                system,
             MemoryManager          memory,
@@ -63,6 +65,8 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
 
             _effects = CreateArray<EffectContext>(rendererParams.EffectCount);
 
+            _elapsedFrameCount = 0;
+
             InitializeAudioOut();
 
             _playState = PlayState.Stopped;
@@ -264,6 +268,18 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
                 writer.Write(effect.OutStatus);
             }
 
+            writer.SkipBytes(_params.SinkCount * 0x20);
+            writer.SkipBytes(outputHeader.PerformanceManagerSize);
+            writer.SkipBytes(outputHeader.BehaviorSize);
+
+            if (behaviorInfo.IsElapsedFrameCountSupported())
+            {
+                writer.Write(new RendererInfoOut
+                {
+                    ElapsedFrameCount = _elapsedFrameCount
+                });
+            }
+
             return ResultCode.Success;
         }
 
@@ -331,6 +347,8 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
             {
                 AppendMixedBuffer(released[index]);
             }
+
+            _elapsedFrameCount++;
         }
 
         private void AppendMixedBuffer(long tag)

Ryujinx.HLE/HOS/Services/Audio/AudioRendererManager/Types/RendererInfoOut.cs

@@ -0,0 +1,11 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x10, Pack = 4)]
+    struct RendererInfoOut
+    {
+        public ulong ElapsedFrameCount;
+        public ulong Reserved;
+    }
+}

Ryujinx.HLE/Utilities/StructWriter.cs

@@ -21,5 +21,10 @@ namespace Ryujinx.HLE.Utilities
 
             Position += Marshal.SizeOf<T>();
         }
+
+        public void SkipBytes(long count)
+        {
+            Position += count;
+        }
     }
 }