Haydn: Part 1 (#2007)

* Haydn: Part 1

Based on my reverse of audio 11.0.0.

As always, core implementation under LGPLv3 for the same reasons as for Amadeus.

This place the bases of a more flexible audio system while making audout & audin accurate.

This have the following improvements:
- Complete reimplementation of audout and audin.
- Audin currently only have a dummy backend.
- Dramatically reduce CPU usage by up to 50% in common cases (SoundIO and OpenAL).
- Audio Renderer now can output to 5.1 devices when supported.
- Audio Renderer init its backend on demand instead of keeping two up all the time.
- All backends implementation are now in their own project.
- Ryujinx.Audio.Renderer was renamed Ryujinx.Audio and was refactored because of this.

As a note, games having issues with OpenAL haven't improved and will not
because of OpenAL design (stopping when buffers finish playing causing
possible audio "pops" when buffers are very small).

* Update for latest hexkyz's edits on Switchbrew

* audren: Rollback channel configuration changes

* Address gdkchan's comments

* Fix typo in OpenAL backend driver

* Address last comments

* Fix a nit

* Address gdkchan's comments

1 files changed, 5 insertions, 80 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Audio/IAudioInManager.cs b/Ryujinx.HLE/HOS/Services/Audio/IAudioInManager.cs
index b3f7f5e0..9bbe5b0e 100644
--- a/Ryujinx.HLE/HOS/Services/Audio/IAudioInManager.cs
+++ b/Ryujinx.HLE/HOS/Services/Audio/IAudioInManager.cs
@@ -1,87 +1,12 @@
-using Ryujinx.Cpu;
-using Ryujinx.Memory;
-using System;
-using System.Text;
+using Ryujinx.Audio.Common;
+using Ryujinx.HLE.HOS.Services.Audio.AudioIn;
 
 namespace Ryujinx.HLE.HOS.Services.Audio
 {
-    [Service("audin:u")]
-    class IAudioInManager : IpcService
+    interface IAudioInManager
     {
-        private const string DefaultAudioInsName = "BuiltInHeadset";
+        public string[] ListAudioIns(bool filtered);
 
-        public IAudioInManager(ServiceCtx context) { }
-
-        [Command(0)]
-        // ListAudioIns() -> (u32 count, buffer<bytes, 6> names)
-        public ResultCode ListAudioIns(ServiceCtx context)
-        {
-            long bufferPosition = context.Request.ReceiveBuff[0].Position;
-            long bufferSize     = context.Request.ReceiveBuff[0].Size;
-
-            // NOTE: The service check if AudioInManager thread is started, if not it starts it.
-
-            uint count = ListAudioInsImpl(context.Memory, bufferPosition, bufferSize, false);
-
-            context.ResponseData.Write(count);
-
-            return ResultCode.Success;
-        }
-
-        [Command(2)] // 3.0.0+
-        // ListAudioInsAuto() -> (u32 count, buffer<bytes, 0x22> names)
-        public ResultCode ListAudioInsAuto(ServiceCtx context)
-        {
-            (long bufferPosition, long bufferSize) = context.Request.GetBufferType0x22();
-
-            // NOTE: The service check if AudioInManager thread is started, if not it starts it.
-
-            uint count = ListAudioInsImpl(context.Memory, bufferPosition, bufferSize, false);
-
-            context.ResponseData.Write(count);
-
-            return ResultCode.Success;
-        }
-
-        [Command(4)] // 3.0.0+
-        // ListAudioInsAutoFiltered() -> (u32 count, buffer<bytes, 0x22> names)
-        public ResultCode ListAudioInsAutoFiltered(ServiceCtx context)
-        {
-            (long bufferPosition, long bufferSize) = context.Request.GetBufferType0x22();
-
-            // NOTE: The service check if AudioInManager thread is started, if not it starts it.
-
-            uint count = ListAudioInsImpl(context.Memory, bufferPosition, bufferSize, true);
-
-            context.ResponseData.Write(count);
-
-            return ResultCode.Success;
-        }
-
-        private uint ListAudioInsImpl(IVirtualMemoryManager memory, long bufferPosition, long bufferSize, bool filtered = false)
-        {
-            uint count = 0;
-
-            MemoryHelper.FillWithZeros(memory, bufferPosition, (int)bufferSize);
-
-            if (bufferSize > 0)
-            {
-                // NOTE: The service also check that the input target is enabled when in filtering mode, as audctl and most of the audin logic isn't supported, we don't support it.
-                if (!filtered)
-                {
-                    byte[] deviceNameBuffer = Encoding.ASCII.GetBytes(DefaultAudioInsName + "\0");
-
-                    memory.Write((ulong)bufferPosition, deviceNameBuffer);
-
-                    count++;
-                }
-
-                // NOTE: The service adds other input devices names available in the buffer,
-                //       every name is aligned to 0x100 bytes.
-                //       Since we don't support it for now, it's fine to do nothing here.
-            }
-
-            return count;
-        }
+        public ResultCode OpenAudioIn(ServiceCtx context, out string outputDeviceName, out AudioOutputConfiguration outputConfiguration, out IAudioIn obj, string inputDeviceName, ref AudioInputConfiguration parameter, ulong appletResourceUserId, uint processHandle);
     }
 }
\ No newline at end of file