using Ryujinx.Audio; using Ryujinx.Common.Logging; using Ryujinx.Cpu; using Ryujinx.HLE.HOS.Kernel.Threading; using Ryujinx.HLE.HOS.Services.Audio.AudioOutManager; using System.Text; namespace Ryujinx.HLE.HOS.Services.Audio { [Service("audout:u")] class IAudioOutManager : IpcService { private const string DefaultAudioOutput = "DeviceOut"; private const int DefaultSampleRate = 48000; private const int DefaultChannelsCount = 2; public IAudioOutManager(ServiceCtx context) : base(context.Device.System.AudOutServer) { } [Command(0)] // ListAudioOuts() -> (u32 count, buffer<bytes, 6>) public ResultCode ListAudioOuts(ServiceCtx context) { return ListAudioOutsImpl(context, context.Request.ReceiveBuff[0].Position, context.Request.ReceiveBuff[0].Size); } [Command(1)] // OpenAudioOut(u32 sample_rate, u16 unused, u16 channel_count, nn::applet::AppletResourceUserId, pid, handle<copy, process>, buffer<bytes, 5> name_in) // -> (u32 sample_rate, u32 channel_count, u32 pcm_format, u32, object<nn::audio::detail::IAudioOut>, buffer<bytes, 6> name_out) public ResultCode OpenAudioOut(ServiceCtx context) { return OpenAudioOutImpl(context, context.Request.SendBuff[0].Position, context.Request.SendBuff[0].Size, context.Request.ReceiveBuff[0].Position, context.Request.ReceiveBuff[0].Size); } [Command(2)] // 3.0.0+ // ListAudioOutsAuto() -> (u32 count, buffer<bytes, 0x22>) public ResultCode ListAudioOutsAuto(ServiceCtx context) { (long recvPosition, long recvSize) = context.Request.GetBufferType0x22(); return ListAudioOutsImpl(context, recvPosition, recvSize); } [Command(3)] // 3.0.0+ // OpenAudioOutAuto(u32 sample_rate, u16 unused, u16 channel_count, nn::applet::AppletResourceUserId, pid, handle<copy, process>, buffer<bytes, 0x21>) // -> (u32 sample_rate, u32 channel_count, u32 pcm_format, u32, object<nn::audio::detail::IAudioOut>, buffer<bytes, 0x22> name_out) public ResultCode OpenAudioOutAuto(ServiceCtx context) { (long sendPosition, long sendSize) = context.Request.GetBufferType0x21(); (long recvPosition, long recvSize) = context.Request.GetBufferType0x22(); return OpenAudioOutImpl(context, sendPosition, sendSize, recvPosition, recvSize); } private ResultCode ListAudioOutsImpl(ServiceCtx context, long position, long size) { int nameCount = 0; byte[] deviceNameBuffer = Encoding.ASCII.GetBytes(DefaultAudioOutput + "\0"); if ((ulong)deviceNameBuffer.Length <= (ulong)size) { context.Memory.Write((ulong)position, deviceNameBuffer); nameCount++; } else { Logger.Error?.Print(LogClass.ServiceAudio, $"Output buffer size {size} too small!"); } context.ResponseData.Write(nameCount); return ResultCode.Success; } private ResultCode OpenAudioOutImpl(ServiceCtx context, long sendPosition, long sendSize, long receivePosition, long receiveSize) { string deviceName = MemoryHelper.ReadAsciiString(context.Memory, sendPosition, sendSize); if (deviceName == string.Empty) { deviceName = DefaultAudioOutput; } if (deviceName != DefaultAudioOutput) { Logger.Warning?.Print(LogClass.Audio, "Invalid device name!"); return ResultCode.DeviceNotFound; } byte[] deviceNameBuffer = Encoding.ASCII.GetBytes(deviceName + "\0"); if ((ulong)deviceNameBuffer.Length <= (ulong)receiveSize) { context.Memory.Write((ulong)receivePosition, deviceNameBuffer); } else { Logger.Error?.Print(LogClass.ServiceAudio, $"Output buffer size {receiveSize} too small!"); } int sampleRate = context.RequestData.ReadInt32(); int channels = context.RequestData.ReadInt32(); if (sampleRate == 0) { sampleRate = DefaultSampleRate; } if (sampleRate != DefaultSampleRate) { Logger.Warning?.Print(LogClass.Audio, "Invalid sample rate!"); return ResultCode.UnsupportedSampleRate; } channels = (ushort)channels; if (channels == 0) { channels = DefaultChannelsCount; } KEvent releaseEvent = new KEvent(context.Device.System.KernelContext); ReleaseCallback callback = () => { releaseEvent.ReadableEvent.Signal(); }; IAalOutput audioOut = context.Device.AudioOut; int track = audioOut.OpenTrack(sampleRate, channels, callback); MakeObject(context, new IAudioOut(context.Device.System.KernelContext, audioOut, releaseEvent, track, context.Request.HandleDesc.ToCopy[0])); context.ResponseData.Write(sampleRate); context.ResponseData.Write(channels); context.ResponseData.Write((int)SampleFormat.PcmInt16); context.ResponseData.Write((int)PlaybackState.Stopped); return ResultCode.Success; } } }