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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;
}
}
}
}
}
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