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* haydn: Add support for PCMFloat, PCM32 and PCM8 conversions This adds support in the compatibility layer for other sample format than PCM16. This should help extends compatibility with soundio on devices that doesn't expose PCM16. I ommited PCM24 conversion for now as it's not simplest of all. * Address TSRBerry's comment * Address comments * Fix conversion issue and clean up saturation usage * Revert saturation changes * Address gdkchan's comment
181 lines
No EOL
6.5 KiB
C#
181 lines
No EOL
6.5 KiB
C#
using Ryujinx.Audio.Backends.Common;
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using Ryujinx.Audio.Backends.Dummy;
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using Ryujinx.Audio.Common;
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using Ryujinx.Audio.Integration;
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using Ryujinx.Common.Logging;
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using Ryujinx.Memory;
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using System;
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using System.Threading;
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using static Ryujinx.Audio.Integration.IHardwareDeviceDriver;
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namespace Ryujinx.Audio.Backends.CompatLayer
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{
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public class CompatLayerHardwareDeviceDriver : IHardwareDeviceDriver
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{
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private IHardwareDeviceDriver _realDriver;
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public CompatLayerHardwareDeviceDriver(IHardwareDeviceDriver realDevice)
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{
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_realDriver = realDevice;
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}
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public void Dispose()
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{
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_realDriver.Dispose();
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}
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public ManualResetEvent GetUpdateRequiredEvent()
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{
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return _realDriver.GetUpdateRequiredEvent();
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}
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public ManualResetEvent GetPauseEvent()
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{
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return _realDriver.GetPauseEvent();
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}
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private uint SelectHardwareChannelCount(uint targetChannelCount)
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{
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if (_realDriver.SupportsChannelCount(targetChannelCount))
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{
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return targetChannelCount;
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}
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return targetChannelCount switch
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{
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6 => SelectHardwareChannelCount(2),
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2 => SelectHardwareChannelCount(1),
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1 => throw new ArgumentException("No valid channel configuration found!"),
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_ => throw new ArgumentException($"Invalid targetChannelCount {targetChannelCount}")
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};
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}
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private SampleFormat SelectHardwareSampleFormat(SampleFormat targetSampleFormat)
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{
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if (_realDriver.SupportsSampleFormat(targetSampleFormat))
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{
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return targetSampleFormat;
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}
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// Attempt conversion from PCM16.
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if (targetSampleFormat == SampleFormat.PcmInt16)
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{
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// Prefer PCM32 if we need to convert.
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if (_realDriver.SupportsSampleFormat(SampleFormat.PcmInt32))
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{
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return SampleFormat.PcmInt32;
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}
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// If not supported, PCM float provides the best quality with a cost lower than PCM24.
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if (_realDriver.SupportsSampleFormat(SampleFormat.PcmFloat))
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{
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return SampleFormat.PcmFloat;
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}
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// TODO: Implement PCM24 conversion.
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// If nothing is truly supported, attempt PCM8 at the cost of loosing quality.
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if (_realDriver.SupportsSampleFormat(SampleFormat.PcmInt8))
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{
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return SampleFormat.PcmInt8;
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}
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}
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throw new ArgumentException("No valid sample format configuration found!");
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}
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public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
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{
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if (channelCount == 0)
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{
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channelCount = 2;
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}
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if (sampleRate == 0)
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{
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sampleRate = Constants.TargetSampleRate;
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}
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volume = Math.Clamp(volume, 0, 1);
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if (!_realDriver.SupportsDirection(direction))
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{
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if (direction == Direction.Input)
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{
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Logger.Warning?.Print(LogClass.Audio, "The selected audio backend doesn't support audio input, fallback to dummy...");
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return new DummyHardwareDeviceSessionInput(this, memoryManager, sampleFormat, sampleRate, channelCount);
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}
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throw new NotImplementedException();
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}
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SampleFormat hardwareSampleFormat = SelectHardwareSampleFormat(sampleFormat);
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uint hardwareChannelCount = SelectHardwareChannelCount(channelCount);
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IHardwareDeviceSession realSession = _realDriver.OpenDeviceSession(direction, memoryManager, hardwareSampleFormat, sampleRate, hardwareChannelCount, volume);
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if (hardwareChannelCount == channelCount && hardwareSampleFormat == sampleFormat)
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{
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return realSession;
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}
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if (hardwareSampleFormat != sampleFormat)
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{
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Logger.Warning?.Print(LogClass.Audio, $"{sampleFormat} isn't supported by the audio device, conversion to {hardwareSampleFormat} will happen.");
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if (hardwareSampleFormat < sampleFormat)
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{
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Logger.Warning?.Print(LogClass.Audio, $"{hardwareSampleFormat} has lower quality than {sampleFormat}, expect some loss in audio fidelity.");
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}
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}
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if (direction == Direction.Input)
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{
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Logger.Warning?.Print(LogClass.Audio, $"The selected audio backend doesn't support the requested audio input configuration, fallback to dummy...");
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// TODO: We currently don't support audio input upsampling/downsampling, implement this.
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realSession.Dispose();
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return new DummyHardwareDeviceSessionInput(this, memoryManager, sampleFormat, sampleRate, channelCount);
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}
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// It must be a HardwareDeviceSessionOutputBase.
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if (realSession is not HardwareDeviceSessionOutputBase realSessionOutputBase)
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{
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throw new InvalidOperationException($"Real driver session class type isn't based on {typeof(HardwareDeviceSessionOutputBase).Name}.");
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}
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// If we need to do post processing before sending to the hardware device, wrap around it.
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return new CompatLayerHardwareDeviceSession(realSessionOutputBase, sampleFormat, channelCount);
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}
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public bool SupportsChannelCount(uint channelCount)
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{
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return channelCount == 1 || channelCount == 2 || channelCount == 6;
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}
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public bool SupportsSampleFormat(SampleFormat sampleFormat)
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{
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// TODO: More formats.
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return sampleFormat == SampleFormat.PcmInt16;
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}
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public bool SupportsSampleRate(uint sampleRate)
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{
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// TODO: More sample rates.
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return sampleRate == Constants.TargetSampleRate;
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}
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public IHardwareDeviceDriver GetRealDeviceDriver()
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{
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return _realDriver;
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}
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public bool SupportsDirection(Direction direction)
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{
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return direction == Direction.Input || direction == Direction.Output;
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}
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}
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} |