Audio Renderer improvements (#210)

* Partial voice implementation on audio renderer

* Implemented audren resampler (based on original impl)

* Fix BiquadFilter struct

* Pause audio playback on last stream buffer

* Split audren/audout files into separate folders, some minor cleanup

* Use AudioRendererParameter on GetWorkBufferSize aswell

* Bump audren version to REV4, name a few things, increase sample buffer size

* Remove useless new lines

3 files changed, 72 insertions, 2 deletions

diff --git a/Ryujinx.HLE/OsHle/Utilities/IntUtils.cs b/Ryujinx.HLE/OsHle/Utilities/IntUtils.cs
index ba0726c3..39cced28 100644
--- a/Ryujinx.HLE/OsHle/Utilities/IntUtils.cs
+++ b/Ryujinx.HLE/OsHle/Utilities/IntUtils.cs
@@ -2,12 +2,12 @@ namespace Ryujinx.HLE.OsHle.Utilities
 {
     static class IntUtils
     {
-        public static int RoundUp(int Value, int Size)
+        public static int AlignUp(int Value, int Size)
         {
             return (Value + (Size - 1)) & ~(Size - 1);
         }
 
-        public static long RoundUp(long Value, int Size)
+        public static long AlignUp(long Value, int Size)
         {
             return (Value + (Size - 1)) & ~((long)Size - 1);
         }
diff --git a/Ryujinx.HLE/OsHle/Utilities/StructReader.cs b/Ryujinx.HLE/OsHle/Utilities/StructReader.cs
new file mode 100644
index 00000000..e218288b
--- /dev/null
+++ b/Ryujinx.HLE/OsHle/Utilities/StructReader.cs
@@ -0,0 +1,45 @@
+using ChocolArm64.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.OsHle.Utilities
+{
+    class StructReader
+    {
+        private AMemory Memory;
+
+        public long Position { get; private set; }
+
+        public StructReader(AMemory Memory, long Position)
+        {
+            this.Memory   = Memory;
+            this.Position = Position;
+        }
+
+        public T Read<T>() where T : struct
+        {
+            T Value = AMemoryHelper.Read<T>(Memory, Position);
+
+            Position += Marshal.SizeOf<T>();
+
+            return Value;
+        }
+
+        public T[] Read<T>(int Size) where T : struct
+        {
+            int StructSize = Marshal.SizeOf<T>();
+
+            int Count = Size / StructSize;
+
+            T[] Output = new T[Count];
+
+            for (int Index = 0; Index < Count; Index++)
+            {
+                Output[Index] = AMemoryHelper.Read<T>(Memory, Position);
+
+                Position += StructSize;
+            }
+
+            return Output;
+        }
+    }
+}
diff --git a/Ryujinx.HLE/OsHle/Utilities/StructWriter.cs b/Ryujinx.HLE/OsHle/Utilities/StructWriter.cs
new file mode 100644
index 00000000..7daa95fb
--- /dev/null
+++ b/Ryujinx.HLE/OsHle/Utilities/StructWriter.cs
@@ -0,0 +1,25 @@
+using ChocolArm64.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.OsHle.Utilities
+{
+    class StructWriter
+    {
+        private AMemory Memory;
+
+        public long Position { get; private set; }
+
+        public StructWriter(AMemory Memory, long Position)
+        {
+            this.Memory   = Memory;
+            this.Position = Position;
+        }
+
+        public void Write<T>(T Value) where T : struct
+        {
+            AMemoryHelper.Write(Memory, Position, Value);
+
+            Position += Marshal.SizeOf<T>();
+        }
+    }
+}