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//
// Copyright (c) 2019-2021 Ryujinx
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//
using Ryujinx.Audio.Common;
using System;
using System.Runtime.InteropServices;
namespace Ryujinx.Audio.Integration
{
public class HardwareDeviceImpl : IHardwareDevice
{
private IHardwareDeviceSession _session;
private uint _channelCount;
private uint _sampleRate;
private uint _currentBufferTag;
private byte[] _buffer;
public HardwareDeviceImpl(IHardwareDeviceDriver deviceDriver, uint channelCount, uint sampleRate, float volume)
{
_session = deviceDriver.OpenDeviceSession(IHardwareDeviceDriver.Direction.Output, null, SampleFormat.PcmInt16, sampleRate, channelCount, volume);
_channelCount = channelCount;
_sampleRate = sampleRate;
_currentBufferTag = 0;
_buffer = new byte[Constants.TargetSampleCount * channelCount * sizeof(ushort)];
_session.Start();
}
public void AppendBuffer(ReadOnlySpan<short> data, uint channelCount)
{
data.CopyTo(MemoryMarshal.Cast<byte, short>(_buffer));
_session.QueueBuffer(new AudioBuffer
{
DataPointer = _currentBufferTag++,
Data = _buffer,
DataSize = (ulong)_buffer.Length,
});
_currentBufferTag = _currentBufferTag % 4;
}
public void SetVolume(float volume)
{
_session.SetVolume(volume);
}
public float GetVolume()
{
return _session.GetVolume();
}
public uint GetChannelCount()
{
return _channelCount;
}
public uint GetSampleRate()
{
return _sampleRate;
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
_session.Dispose();
}
}
}
}
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