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This is the first commit of a series of reformat around the codebase as discussed internally some weeks ago. This project being one that isn't touched that much, it shouldn't cause conflict with any opened PRs.
78 lines
No EOL
2.6 KiB
C#
78 lines
No EOL
2.6 KiB
C#
using System;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.Audio.Renderer.Dsp
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{
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public static class PcmHelper
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int GetCountToDecode(int startSampleOffset, int endSampleOffset, int offset, int count)
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{
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return Math.Min(count, endSampleOffset - startSampleOffset - offset);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong GetBufferOffset<T>(int startSampleOffset, int offset, int channelCount) where T : unmanaged
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{
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return (ulong)(Unsafe.SizeOf<T>() * channelCount * (startSampleOffset + offset));
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int GetBufferSize<T>(int startSampleOffset, int endSampleOffset, int offset, int count) where T : unmanaged
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{
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return GetCountToDecode(startSampleOffset, endSampleOffset, offset, count) * Unsafe.SizeOf<T>();
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int Decode(Span<short> output, ReadOnlySpan<short> input, int startSampleOffset, int endSampleOffset, int channelIndex, int channelCount)
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{
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if (input.IsEmpty || endSampleOffset < startSampleOffset)
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{
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return 0;
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}
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int decodedCount = input.Length / channelCount;
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for (int i = 0; i < decodedCount; i++)
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{
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output[i] = input[i * channelCount + channelIndex];
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}
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return decodedCount;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static int Decode(Span<short> output, ReadOnlySpan<float> input, int startSampleOffset, int endSampleOffset, int channelIndex, int channelCount)
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{
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if (input.IsEmpty || endSampleOffset < startSampleOffset)
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{
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return 0;
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}
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int decodedCount = input.Length / channelCount;
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for (int i = 0; i < decodedCount; i++)
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{
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output[i] = (short)(input[i * channelCount + channelIndex] * short.MaxValue);
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}
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return decodedCount;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static short Saturate(float value)
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{
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if (value > short.MaxValue)
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{
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return short.MaxValue;
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}
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if (value < short.MinValue)
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{
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return short.MinValue;
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}
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return (short)value;
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}
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}
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} |