diff options
Diffstat (limited to 'Ryujinx.HLE/HOS/Services/Aud/AudioRenderer/Resampler.cs')
| -rw-r--r-- | Ryujinx.HLE/HOS/Services/Aud/AudioRenderer/Resampler.cs | 82 |
1 files changed, 41 insertions, 41 deletions
diff --git a/Ryujinx.HLE/HOS/Services/Aud/AudioRenderer/Resampler.cs b/Ryujinx.HLE/HOS/Services/Aud/AudioRenderer/Resampler.cs index baa0bc62..9714f6d8 100644 --- a/Ryujinx.HLE/HOS/Services/Aud/AudioRenderer/Resampler.cs +++ b/Ryujinx.HLE/HOS/Services/Aud/AudioRenderer/Resampler.cs @@ -5,7 +5,7 @@ namespace Ryujinx.HLE.HOS.Services.Aud.AudioRenderer static class Resampler { #region "LookUp Tables" - private static short[] CurveLut0 = new short[] + private static short[] _curveLut0 = new short[] { 6600, 19426, 6722, 3, 6479, 19424, 6845, 9, 6359, 19419, 6968, 15, 6239, 19412, 7093, 22, 6121, 19403, 7219, 28, 6004, 19391, 7345, 34, 5888, 19377, 7472, 41, 5773, 19361, 7600, 48, @@ -41,7 +41,7 @@ namespace Ryujinx.HLE.HOS.Services.Aud.AudioRenderer 22, 7093, 19412, 6239, 15, 6968, 19419, 6359, 9, 6845, 19424, 6479, 3, 6722, 19426, 6600 }; - private static short[] CurveLut1 = new short[] + private static short[] _curveLut1 = new short[] { -68, 32639, 69, -5, -200, 32630, 212, -15, -328, 32613, 359, -26, -450, 32586, 512, -36, -568, 32551, 669, -47, -680, 32507, 832, -58, -788, 32454, 1000, -69, -891, 32393, 1174, -80, @@ -77,7 +77,7 @@ namespace Ryujinx.HLE.HOS.Services.Aud.AudioRenderer -36, 512, 32586, -450, -26, 359, 32613, -328, -15, 212, 32630, -200, -5, 69, 32639, -68 }; - private static short[] CurveLut2 = new short[] + private static short[] _curveLut2 = new short[] { 3195, 26287, 3329, -32, 3064, 26281, 3467, -34, 2936, 26270, 3608, -38, 2811, 26253, 3751, -42, 2688, 26230, 3897, -46, 2568, 26202, 4046, -50, 2451, 26169, 4199, -54, 2338, 26130, 4354, -58, @@ -115,77 +115,77 @@ namespace Ryujinx.HLE.HOS.Services.Aud.AudioRenderer #endregion public static int[] Resample2Ch( - int[] Buffer, - int SrcSampleRate, - int DstSampleRate, - int SamplesCount, - ref int FracPart) + int[] buffer, + int srcSampleRate, + int dstSampleRate, + int samplesCount, + ref int fracPart) { - if (Buffer == null) + if (buffer == null) { - throw new ArgumentNullException(nameof(Buffer)); + throw new ArgumentNullException(nameof(buffer)); } - if (SrcSampleRate <= 0) + if (srcSampleRate <= 0) { - throw new ArgumentOutOfRangeException(nameof(SrcSampleRate)); + throw new ArgumentOutOfRangeException(nameof(srcSampleRate)); } - if (DstSampleRate <= 0) + if (dstSampleRate <= 0) { - throw new ArgumentOutOfRangeException(nameof(DstSampleRate)); + throw new ArgumentOutOfRangeException(nameof(dstSampleRate)); } - double Ratio = (double)SrcSampleRate / DstSampleRate; + double ratio = (double)srcSampleRate / dstSampleRate; - int NewSamplesCount = (int)(SamplesCount / Ratio); + int newSamplesCount = (int)(samplesCount / ratio); - int Step = (int)(Ratio * 0x8000); + int step = (int)(ratio * 0x8000); - int[] Output = new int[NewSamplesCount * 2]; + int[] output = new int[newSamplesCount * 2]; - short[] Lut; + short[] lut; - if (Step > 0xaaaa) + if (step > 0xaaaa) { - Lut = CurveLut0; + lut = _curveLut0; } - else if (Step <= 0x8000) + else if (step <= 0x8000) { - Lut = CurveLut1; + lut = _curveLut1; } else { - Lut = CurveLut2; + lut = _curveLut2; } - int InOffs = 0; + int inOffs = 0; - for (int OutOffs = 0; OutOffs < Output.Length; OutOffs += 2) + for (int outOffs = 0; outOffs < output.Length; outOffs += 2) { - int LutIndex = (FracPart >> 8) * 4; + int lutIndex = (fracPart >> 8) * 4; - int Sample0 = Buffer[(InOffs + 0) * 2 + 0] * Lut[LutIndex + 0] + - Buffer[(InOffs + 1) * 2 + 0] * Lut[LutIndex + 1] + - Buffer[(InOffs + 2) * 2 + 0] * Lut[LutIndex + 2] + - Buffer[(InOffs + 3) * 2 + 0] * Lut[LutIndex + 3]; + int sample0 = buffer[(inOffs + 0) * 2 + 0] * lut[lutIndex + 0] + + buffer[(inOffs + 1) * 2 + 0] * lut[lutIndex + 1] + + buffer[(inOffs + 2) * 2 + 0] * lut[lutIndex + 2] + + buffer[(inOffs + 3) * 2 + 0] * lut[lutIndex + 3]; - int Sample1 = Buffer[(InOffs + 0) * 2 + 1] * Lut[LutIndex + 0] + - Buffer[(InOffs + 1) * 2 + 1] * Lut[LutIndex + 1] + - Buffer[(InOffs + 2) * 2 + 1] * Lut[LutIndex + 2] + - Buffer[(InOffs + 3) * 2 + 1] * Lut[LutIndex + 3]; + int sample1 = buffer[(inOffs + 0) * 2 + 1] * lut[lutIndex + 0] + + buffer[(inOffs + 1) * 2 + 1] * lut[lutIndex + 1] + + buffer[(inOffs + 2) * 2 + 1] * lut[lutIndex + 2] + + buffer[(inOffs + 3) * 2 + 1] * lut[lutIndex + 3]; - int NewOffset = FracPart + Step; + int newOffset = fracPart + step; - InOffs += NewOffset >> 15; + inOffs += newOffset >> 15; - FracPart = NewOffset & 0x7fff; + fracPart = newOffset & 0x7fff; - Output[OutOffs + 0] = Sample0 >> 15; - Output[OutOffs + 1] = Sample1 >> 15; + output[outOffs + 0] = sample0 >> 15; + output[outOffs + 1] = sample1 >> 15; } - return Output; + return output; } } }
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