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); } }