public void UpdateParameter(ref Reverb3dParameter parameter)
{
uint sampleRate = parameter.SampleRate / 1000;
EarlyDelayTime = new uint[20];
DryGain = parameter.DryGain;
PreviousFeedbackOutputDecayed.AsSpan().Fill(0);
PreviousPreDelayValue = 0;
EarlyReflectionsGain = FloatingPointHelper.Pow10(Math.Min(parameter.RoomGain + parameter.ReflectionsGain, 5000.0f) / 2000.0f);
LateReverbGain = FloatingPointHelper.Pow10(Math.Min(parameter.RoomGain + parameter.ReverbGain, 5000.0f) / 2000.0f);
float highFrequencyRoomGain = FloatingPointHelper.Pow10(parameter.RoomHf / 2000.0f);
if (highFrequencyRoomGain < 1.0f)
{
float tempA = 1.0f - highFrequencyRoomGain;
float tempB = 2.0f - ((2.0f * highFrequencyRoomGain) * FloatingPointHelper.Cos(256.0f * parameter.HfReference / parameter.SampleRate));
float tempC = MathF.Sqrt(MathF.Pow(tempB, 2) - (4.0f * (1.0f - highFrequencyRoomGain) * (1.0f - highFrequencyRoomGain)));
PreviousPreDelayGain = (tempB - tempC) / (2.0f * tempA);
TargetPreDelayGain = 1.0f - PreviousPreDelayGain;
}
else
{
PreviousPreDelayGain = 0.0f;
TargetPreDelayGain = 1.0f;
}
ReflectionDelayTime = IDelayLine.GetSampleCount(sampleRate, 1000.0f * (parameter.ReflectionDelay + parameter.ReverbDelayTime));
EchoLateReverbDecay = 0.6f * parameter.Diffusion * 0.01f;
for (int i = 0; i < FdnDelayLines.Length; i++)
{
FdnDelayLines[i].SetDelay(FdnDelayMinTimes[i] + (parameter.Density / 100 * (FdnDelayMaxTimes[i] - FdnDelayMinTimes[i])));
uint tempSampleCount = FdnDelayLines[i].CurrentSampleCount + DecayDelays1[i].CurrentSampleCount + DecayDelays2[i].CurrentSampleCount;
float tempA = (-60.0f * tempSampleCount) / (parameter.DecayTime * parameter.SampleRate);
float tempB = tempA / parameter.HfDecayRatio;
float tempC = FloatingPointHelper.Cos(128.0f * 0.5f * parameter.HfReference / parameter.SampleRate) / FloatingPointHelper.Sin(128.0f * 0.5f * parameter.HfReference / parameter.SampleRate);
float tempD = FloatingPointHelper.Pow10((tempB - tempA) / 40.0f);
float tempE = FloatingPointHelper.Pow10((tempB + tempA) / 40.0f) * 0.7071f;
DecayDirectFdnGain[i] = tempE * ((tempD * tempC) + 1.0f) / (tempC + tempD);
DecayCurrentFdnGain[i] = tempE * (1.0f - (tempD * tempC)) / (tempC + tempD);
DecayCurrentOutputGain[i] = (tempC - tempD) / (tempC + tempD);
DecayDelays1[i].SetDecayRate(EchoLateReverbDecay);
DecayDelays2[i].SetDecayRate(EchoLateReverbDecay * -0.9f);
}
for (int i = 0; i < EarlyDelayTime.Length; i++)
{
uint sampleCount = Math.Min(IDelayLine.GetSampleCount(sampleRate, (parameter.ReflectionDelay * 1000.0f) + (EarlyDelayTimes[i] * 1000.0f * ((parameter.ReverbDelayTime * 0.9998f) + 0.02f))), PreDelayLine.SampleCountMax);
EarlyDelayTime[i] = sampleCount;
}
}
/// <summary>
/// Generate a new <see cref="Reverb3dCommand"/>.
/// </summary>
/// <param name="bufferOffset">The target buffer offset.</param>
/// <param name="parameter">The reverb 3d parameter.</param>
/// <param name="state">The reverb 3d state.</param>
/// <param name="isEnabled">Set to true if the effect should be active.</param>
/// <param name="workBuffer">The work buffer to use for processing.</param>
/// <param name="nodeId">The node id associated to this command.</param>
/// <param name="newEffectChannelMappingSupported">If set to true, the new effect channel mapping for 5.1 is supported.</param>
public void GenerateReverb3dEffect(uint bufferOffset, Reverb3dParameter parameter, Memory <Reverb3dState> state, bool isEnabled, CpuAddress workBuffer, int nodeId, bool newEffectChannelMappingSupported)
{
if (parameter.IsChannelCountValid())
{
Reverb3dCommand command = new Reverb3dCommand(bufferOffset, parameter, state, isEnabled, workBuffer, nodeId, newEffectChannelMappingSupported);
command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
AddCommand(command);
}
}
public Reverb3dCommand(uint bufferOffset, Reverb3dParameter parameter, Memory <Reverb3dState> state, bool isEnabled, ulong workBuffer, int nodeId)
{
Enabled = true;
IsEffectEnabled = isEnabled;
NodeId = nodeId;
_parameter = parameter;
State = state;
WorkBuffer = workBuffer;
InputBufferIndices = new ushort[RendererConstants.VoiceChannelCountMax];
OutputBufferIndices = new ushort[RendererConstants.VoiceChannelCountMax];
for (int i = 0; i < Parameter.ChannelCount; i++)
{
InputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Input[i]);
OutputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Output[i]);
}
}
public Reverb3dCommand(uint bufferOffset, Reverb3dParameter parameter, Memory <Reverb3dState> state, bool isEnabled, ulong workBuffer, int nodeId, bool newEffectChannelMappingSupported)
{
Enabled = true;
IsEffectEnabled = isEnabled;
NodeId = nodeId;
_parameter = parameter;
State = state;
WorkBuffer = workBuffer;
InputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
OutputBufferIndices = new ushort[Constants.VoiceChannelCountMax];
for (int i = 0; i < Parameter.ChannelCount; i++)
{
InputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Input[i]);
OutputBufferIndices[i] = (ushort)(bufferOffset + Parameter.Output[i]);
}
// NOTE: We do the opposite as Nintendo here for now to restore previous behaviour
// TODO: Update reverb 3d processing and remove this to use RemapLegacyChannelEffectMappingToChannelResourceMapping.
DataSourceHelper.RemapChannelResourceMappingToLegacy(newEffectChannelMappingSupported, InputBufferIndices);
DataSourceHelper.RemapChannelResourceMappingToLegacy(newEffectChannelMappingSupported, OutputBufferIndices);
}
public Reverb3dState(ref Reverb3dParameter parameter, ulong workBuffer)
{
FdnDelayLines = new IDelayLine[4];
DecayDelays1 = new DecayDelay[4];
DecayDelays2 = new DecayDelay[4];
DecayDirectFdnGain = new float[4];
DecayCurrentFdnGain = new float[4];
DecayCurrentOutputGain = new float[4];
PreviousFeedbackOutputDecayed = new float[4];
uint sampleRate = parameter.SampleRate / 1000;
for (int i = 0; i < 4; i++)
{
FdnDelayLines[i] = new DelayLine3d(sampleRate, FdnDelayMaxTimes[i]);
DecayDelays1[i] = new DecayDelay(new DelayLine3d(sampleRate, DecayDelayMaxTimes1[i]));
DecayDelays2[i] = new DecayDelay(new DelayLine3d(sampleRate, DecayDelayMaxTimes2[i]));
}
PreDelayLine = new DelayLine3d(sampleRate, 400);
FrontCenterDelayLine = new DelayLine3d(sampleRate, 5);
UpdateParameter(ref parameter);
}
