private void ProcessVolumeSlowPath(Span <float> outputBuffer, ReadOnlySpan <float> inputBuffer)
{
for (int i = 0; i < outputBuffer.Length; i++)
{
outputBuffer[i] = FloatingPointHelper.MultiplyRoundUp(inputBuffer[i], Volume);
}
}
private void ProcessMixSlowPath(Span <float> outputMix, ReadOnlySpan <float> inputMix)
{
for (int i = 0; i < inputMix.Length; i++)
{
outputMix[i] += FloatingPointHelper.MultiplyRoundUp(inputMix[i], Volume);
}
}
private void ProcessVolumeRamp(Span <float> outputBuffer, ReadOnlySpan <float> inputBuffer, int sampleCount)
{
float ramp = (Volume1 - Volume0) / sampleCount;
float volume = Volume0;
for (int i = 0; i < sampleCount; i++)
{
outputBuffer[i] = FloatingPointHelper.MultiplyRoundUp(inputBuffer[i], volume);
volume += ramp;
}
}
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);
}
private void ProcessVolumeSse41(Span <float> outputBuffer, ReadOnlySpan <float> inputBuffer)
{
Vector128 <float> volumeVec = Vector128.Create(Volume);
ReadOnlySpan <Vector128 <float> > inputVec = MemoryMarshal.Cast <float, Vector128 <float> >(inputBuffer);
Span <Vector128 <float> > outputVec = MemoryMarshal.Cast <float, Vector128 <float> >(outputBuffer);
int sisdStart = inputVec.Length * 4;
for (int i = 0; i < inputVec.Length; i++)
{
outputVec[i] = Sse41.Ceiling(Sse.Multiply(inputVec[i], volumeVec));
}
for (int i = sisdStart; i < inputBuffer.Length; i++)
{
outputBuffer[i] = FloatingPointHelper.MultiplyRoundUp(inputBuffer[i], Volume);
}
}
private void ProcessMixAdvSimd(Span <float> outputMix, ReadOnlySpan <float> inputMix)
{
Vector128 <float> volumeVec = Vector128.Create(Volume);
ReadOnlySpan <Vector128 <float> > inputVec = MemoryMarshal.Cast <float, Vector128 <float> >(inputMix);
Span <Vector128 <float> > outputVec = MemoryMarshal.Cast <float, Vector128 <float> >(outputMix);
int sisdStart = inputVec.Length * 4;
for (int i = 0; i < inputVec.Length; i++)
{
outputVec[i] = AdvSimd.Add(outputVec[i], AdvSimd.Ceiling(AdvSimd.Multiply(inputVec[i], volumeVec)));
}
for (int i = sisdStart; i < inputMix.Length; i++)
{
outputMix[i] += FloatingPointHelper.MultiplyRoundUp(inputMix[i], Volume);
}
}
