54 lines
1.6 KiB
C#
54 lines
1.6 KiB
C#
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//
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// Copyright (c) 2019-2020 Ryujinx
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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using System;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.Audio.Renderer.Dsp.Effect
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{
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public interface IDelayLine
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{
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uint CurrentSampleCount { get; }
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uint SampleCountMax { get; }
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void SetDelay(float delayTime);
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float Read();
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float Update(float value);
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float TapUnsafe(uint sampleIndex, int offset);
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float Tap(uint sampleIndex);
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public static float Tap(Span<float> workBuffer, int baseIndex, int sampleIndex, int delaySampleCount)
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{
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int targetIndex = baseIndex - sampleIndex;
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if (targetIndex < 0)
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{
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targetIndex += delaySampleCount;
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}
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return workBuffer[targetIndex];
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static uint GetSampleCount(uint sampleRate, float delayTime)
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{
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return (uint)MathF.Round(sampleRate * delayTime);
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}
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}
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}
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