Ryujinx/Ryujinx.Audio/Renderer/Dsp/Command/DownMixSurroundToStereoCommand.cs
Mary-nyan dff138229c
amadeus: Fixes and initial 15.0.0 support (#3908)
* amadeus: Allow OOB read of GC-ADPCM coefficients

Fixes "Ninja Gaiden Sigma 2" and possibly "NINJA GAIDEN 3: Razor's Edge"

* amadeus: Fix wrong variable usage in delay effect

We should transform the delay line values, not the input.

* amadeus: Update GroupedBiquadFilterCommand documentation

* amadeus: Simplify PoolMapper alignment checks

* amadeus: Update Surround delay effect matrix to REV11

* amadeus: Add drop parameter support and use 32 bits integers for estimate time

Also implement accurate ExecuteAudioRendererRendering stub.

* Address gdkchan's comments

* Address gdkchan's other comments

* Address gdkchan's comment
2022-11-28 08:28:45 +01:00

68 lines
2.9 KiB
C#

using System;
using System.Runtime.CompilerServices;
namespace Ryujinx.Audio.Renderer.Dsp.Command
{
public class DownMixSurroundToStereoCommand : ICommand
{
public bool Enabled { get; set; }
public int NodeId { get; }
public CommandType CommandType => CommandType.DownMixSurroundToStereo;
public uint EstimatedProcessingTime { get; set; }
public ushort[] InputBufferIndices { get; }
public ushort[] OutputBufferIndices { get; }
public float[] Coefficients { get; }
public DownMixSurroundToStereoCommand(uint bufferOffset, Span<byte> inputBufferOffset, Span<byte> outputBufferOffset, float[] downMixParameter, int nodeId)
{
Enabled = true;
NodeId = nodeId;
InputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
OutputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
for (int i = 0; i < Constants.VoiceChannelCountMax; i++)
{
InputBufferIndices[i] = (ushort)(bufferOffset + inputBufferOffset[i]);
OutputBufferIndices[i] = (ushort)(bufferOffset + outputBufferOffset[i]);
}
Coefficients = downMixParameter;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static float DownMixSurroundToStereo(ReadOnlySpan<float> coefficients, float back, float lfe, float center, float front)
{
return FloatingPointHelper.RoundUp(coefficients[3] * back + coefficients[2] * lfe + coefficients[1] * center + coefficients[0] * front);
}
public void Process(CommandList context)
{
ReadOnlySpan<float> frontLeft = context.GetBuffer(InputBufferIndices[0]);
ReadOnlySpan<float> frontRight = context.GetBuffer(InputBufferIndices[1]);
ReadOnlySpan<float> frontCenter = context.GetBuffer(InputBufferIndices[2]);
ReadOnlySpan<float> lowFrequency = context.GetBuffer(InputBufferIndices[3]);
ReadOnlySpan<float> backLeft = context.GetBuffer(InputBufferIndices[4]);
ReadOnlySpan<float> backRight = context.GetBuffer(InputBufferIndices[5]);
Span<float> stereoLeft = context.GetBuffer(OutputBufferIndices[0]);
Span<float> stereoRight = context.GetBuffer(OutputBufferIndices[1]);
for (int i = 0; i < context.SampleCount; i++)
{
stereoLeft[i] = DownMixSurroundToStereo(Coefficients, backLeft[i], lowFrequency[i], frontCenter[i], frontLeft[i]);
stereoRight[i] = DownMixSurroundToStereo(Coefficients, backRight[i], lowFrequency[i], frontCenter[i], frontRight[i]);
}
context.ClearBuffer(OutputBufferIndices[2]);
context.ClearBuffer(OutputBufferIndices[3]);
context.ClearBuffer(OutputBufferIndices[4]);
context.ClearBuffer(OutputBufferIndices[5]);
}
}
}