audren: Fix AudioRenderer implementation (#773)

* Fix AudioRenderer implementation

According to RE:
- `GetAudioRendererWorkBufferSize` is updated and improved to support `REV7`
- `RequestUpdateAudioRenderer` is updated to `REV7` too

Should improve results on recent game and close #718 and #707

* Fix NodeStates.GetWorkBufferSize

* Use BitUtils instead of IntUtils

* Nits

1 files changed, 16 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Audio/AudioRendererManager/CommandGenerator.cs b/Ryujinx.HLE/HOS/Services/Audio/AudioRendererManager/CommandGenerator.cs
new file mode 100644
index 00000000..b09b990b
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Audio/AudioRendererManager/CommandGenerator.cs
@@ -0,0 +1,16 @@
+namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
+{
+    static class CommandGenerator
+    {
+        public static long CalculateCommandBufferSize(AudioRendererParameter parameters)
+        {
+            return parameters.EffectCount                  * 0x840  +
+                   parameters.SubMixCount                  * 0x5A38 +
+                   parameters.SinkCount                    * 0x148  +
+                   parameters.SplitterDestinationDataCount * 0x540  +
+                   (parameters.SplitterCount * 0x68 + 0x2E0) * parameters.VoiceCount +
+                   ((parameters.VoiceCount + parameters.SubMixCount + parameters.EffectCount + parameters.SinkCount + 0x65) << 6) +
+                   0x3F8;
+        }
+    }
+}
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