Move solution and projects to src

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

@@ -0,0 +1,91 @@
+using Ryujinx.Audio.Renderer.Common;
+using System;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class MixRampGroupedCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.MixRampGrouped;
+
+        public uint EstimatedProcessingTime { get; set; }
+
+        public uint MixBufferCount { get; }
+
+        public ushort[] InputBufferIndices { get; }
+        public ushort[] OutputBufferIndices { get; }
+
+        public float[] Volume0 { get; }
+        public float[] Volume1 { get; }
+
+        public Memory<VoiceUpdateState> State { get; }
+
+        public MixRampGroupedCommand(uint mixBufferCount, uint inputBufferIndex, uint outputBufferIndex, Span<float> volume0, Span<float> volume1, Memory<VoiceUpdateState> state, int nodeId)
+        {
+            Enabled = true;
+            MixBufferCount = mixBufferCount;
+            NodeId = nodeId;
+
+            InputBufferIndices = new ushort[Constants.MixBufferCountMax];
+            OutputBufferIndices = new ushort[Constants.MixBufferCountMax];
+            Volume0 = new float[Constants.MixBufferCountMax];
+            Volume1 = new float[Constants.MixBufferCountMax];
+
+            for (int i = 0; i < mixBufferCount; i++)
+            {
+                InputBufferIndices[i] = (ushort)inputBufferIndex;
+                OutputBufferIndices[i] = (ushort)(outputBufferIndex + i);
+
+                Volume0[i] = volume0[i];
+                Volume1[i] = volume1[i];
+            }
+
+            State = state;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private float ProcessMixRampGrouped(Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, float volume0, float volume1, 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)
+        {
+            for (int i = 0; i < MixBufferCount; i++)
+            {
+                ReadOnlySpan<float> inputBuffer = context.GetBuffer(InputBufferIndices[i]);
+                Span<float> outputBuffer = context.GetBuffer(OutputBufferIndices[i]);
+
+                float volume0 = Volume0[i];
+                float volume1 = Volume1[i];
+
+                ref VoiceUpdateState state = ref State.Span[0];
+
+                if (volume0 != 0 || volume1 != 0)
+                {
+                    state.LastSamples[i] = ProcessMixRampGrouped(outputBuffer, inputBuffer, volume0, volume1, (int)context.SampleCount);
+                }
+                else
+                {
+                    state.LastSamples[i] = 0;
+                }
+            }
+        }
+    }
+}