Update audio renderer to REV13: Add support for compressor statistics and volume reset (#7372)HEADmaster

* Update audio renderer to REV13: Add support for compressor statistics and volume reset

* XML docs

* Disable stats reset

* Wrong comment

* Fix more XML docs

* PR feedback

2 files changed, 47 insertions, 2 deletions

diff --git a/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorParameter.cs b/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorParameter.cs
index b403f137..c00118e4 100644
--- a/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorParameter.cs
+++ b/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorParameter.cs
@@ -90,9 +90,16 @@ namespace Ryujinx.Audio.Renderer.Parameter.Effect
         public bool MakeupGainEnabled;
 
         /// <summary>
-        /// Reserved/padding.
+        /// Indicate if the compressor effect should output statistics.
         /// </summary>
-        private Array2<byte> _reserved;
+        [MarshalAs(UnmanagedType.I1)]
+        public bool StatisticsEnabled;
+
+        /// <summary>
+        /// Indicate to the DSP that the user did a statistics reset.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool StatisticsReset;
 
         /// <summary>
         /// Check if the <see cref="ChannelCount"/> is valid.
diff --git a/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorStatistics.cs b/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorStatistics.cs
new file mode 100644
index 00000000..65335e2d
--- /dev/null
+++ b/src/Ryujinx.Audio/Renderer/Parameter/Effect/CompressorStatistics.cs
@@ -0,0 +1,38 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Parameter.Effect
+{
+    /// <summary>
+    /// Effect result state for <seealso cref="Common.EffectType.Compressor"/>.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct CompressorStatistics
+    {
+        /// <summary>
+        /// Maximum input mean value since last reset.
+        /// </summary>
+        public float MaximumMean;
+
+        /// <summary>
+        /// Minimum output gain since last reset.
+        /// </summary>
+        public float MinimumGain;
+
+        /// <summary>
+        /// Last processed input sample, per channel.
+        /// </summary>
+        public Array6<float> LastSamples;
+
+        /// <summary>
+        /// Reset the statistics.
+        /// </summary>
+        /// <param name="channelCount">Number of channels to reset.</param>
+        public void Reset(ushort channelCount)
+        {
+            MaximumMean = 0.0f;
+            MinimumGain = 1.0f;
+            LastSamples.AsSpan()[..channelCount].Clear();
+        }
+    }
+}