Ryujinx/Ryujinx.Core/OsHle/Services/Aud/IAudioOutManager.cs

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C#
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using ChocolArm64.Memory;
using Ryujinx.Audio;
using Ryujinx.Core.Logging;
using Ryujinx.Core.OsHle.Handles;
using Ryujinx.Core.OsHle.Ipc;
using System.Collections.Generic;
using System.Text;
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namespace Ryujinx.Core.OsHle.Services.Aud
{
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class IAudioOutManager : IpcService
{
private const string DefaultAudioOutput = "DeviceOut";
private Dictionary<int, ServiceProcessRequest> m_Commands;
public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
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public IAudioOutManager()
{
m_Commands = new Dictionary<int, ServiceProcessRequest>()
{
{ 0, ListAudioOuts },
{ 1, OpenAudioOut }
};
}
public long ListAudioOuts(ServiceCtx Context)
{
long Position = Context.Request.ReceiveBuff[0].Position;
long Size = Context.Request.ReceiveBuff[0].Size;
int NameCount = 0;
byte[] DeviceNameBuffer = Encoding.UTF8.GetBytes(DefaultAudioOutput);
if ((ulong)DeviceNameBuffer.Length <= (ulong)Size)
{
AMemoryHelper.WriteBytes(Context.Memory, Position, DeviceNameBuffer);
NameCount++;
}
else
{
Context.Ns.Log.PrintError(LogClass.ServiceAudio, $"Output buffer size {Size} too small!");
}
Context.ResponseData.Write(NameCount);
return 0;
}
public long OpenAudioOut(ServiceCtx Context)
{
IAalOutput AudioOut = Context.Ns.AudioOut;
string DeviceName = AMemoryHelper.ReadAsciiString(
Context.Memory,
Context.Request.SendBuff[0].Position,
Context.Request.SendBuff[0].Size);
if (DeviceName == string.Empty)
{
DeviceName = DefaultAudioOutput;
}
long Position = Context.Request.ReceiveBuff[0].Position;
long Size = Context.Request.ReceiveBuff[0].Size;
byte[] DeviceNameBuffer = Encoding.UTF8.GetBytes(DeviceName);
if ((ulong)DeviceNameBuffer.Length <= (ulong)Size)
{
AMemoryHelper.WriteBytes(Context.Memory, Position, DeviceNameBuffer);
}
else
{
Context.Ns.Log.PrintError(LogClass.ServiceAudio, $"Output buffer size {Size} too small!");
}
int SampleRate = Context.RequestData.ReadInt32();
int Channels = Context.RequestData.ReadInt32();
Channels = (ushort)(Channels >> 16);
if (SampleRate == 0)
{
SampleRate = 48000;
}
if (Channels < 1 || Channels > 2)
{
Channels = 2;
}
KEvent ReleaseEvent = new KEvent();
ReleaseCallback Callback = () =>
{
ReleaseEvent.WaitEvent.Set();
};
int Track = AudioOut.OpenTrack(SampleRate, Channels, Callback, out AudioFormat Format);
MakeObject(Context, new IAudioOut(AudioOut, ReleaseEvent, Track));
Context.ResponseData.Write(SampleRate);
Context.ResponseData.Write(Channels);
Context.ResponseData.Write((int)Format);
Context.ResponseData.Write((int)PlaybackState.Stopped);
return 0;
}
}
}