Move solution and projects to src

src/Ryujinx.Audio/Renderer/Dsp/Command/MixRampCommand.cs

@@ -0,0 +1,68 @@
+using Ryujinx.Audio.Renderer.Common;
+using System;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class MixRampCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.MixRamp;
+
+        public uint EstimatedProcessingTime { get; set; }
+
+        public ushort InputBufferIndex { get; }
+        public ushort OutputBufferIndex { get; }
+
+        public float Volume0 { get; }
+        public float Volume1 { get; }
+
+        public Memory<VoiceUpdateState> State { get; }
+
+        public int LastSampleIndex { get; }
+
+        public MixRampCommand(float volume0, float volume1, uint inputBufferIndex, uint outputBufferIndex, int lastSampleIndex, Memory<VoiceUpdateState> state, int nodeId)
+        {
+            Enabled = true;
+            NodeId = nodeId;
+
+            InputBufferIndex = (ushort)inputBufferIndex;
+            OutputBufferIndex = (ushort)outputBufferIndex;
+
+            Volume0 = volume0;
+            Volume1 = volume1;
+
+            State = state;
+            LastSampleIndex = lastSampleIndex;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private float ProcessMixRamp(Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, int sampleCount)
+        {
+            float ramp = (Volume1 - Volume0) / sampleCount;
+            float volume = Volume0;
+            float state = 0;
+
+            for (int i = 0; i < sampleCount; i++)
+            {
+                state = FloatingPointHelper.MultiplyRoundUp(inputBuffer[i], volume);
+
+                outputBuffer[i] += state;
+                volume += ramp;
+            }
+
+            return state;
+        }
+
+        public void Process(CommandList context)
+        {
+            ReadOnlySpan<float> inputBuffer = context.GetBuffer(InputBufferIndex);
+            Span<float> outputBuffer = context.GetBuffer(OutputBufferIndex);
+
+            State.Span[0].LastSamples[LastSampleIndex] = ProcessMixRamp(outputBuffer, inputBuffer, (int)context.SampleCount);
+        }
+    }
+}