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using Ryujinx.Common;
using Ryujinx.Common.Logging;
using Ryujinx.Graphics.Device;
using System;
using System.Numerics;
namespace Ryujinx.Graphics.Host1x
{
public sealed class Host1xDevice : IDisposable
{
private readonly struct Command
{
public int[] Buffer { get; }
public long ContextId { get; }
public Command(int[] buffer, long contextId)
{
Buffer = buffer;
ContextId = contextId;
}
}
private readonly SyncptIncrManager _syncptIncrMgr;
private readonly AsyncWorkQueue<Command> _commandQueue;
private readonly Devices _devices = new();
public Host1xClass Class { get; }
private IDeviceState _device;
private int _count;
private int _offset;
private int _mask;
private bool _incrementing;
public Host1xDevice(ISynchronizationManager syncMgr)
{
_syncptIncrMgr = new SyncptIncrManager(syncMgr);
_commandQueue = new AsyncWorkQueue<Command>(Process, "Ryujinx.Host1xProcessor");
Class = new Host1xClass(syncMgr);
_devices.RegisterDevice(ClassId.Host1x, Class);
}
public void RegisterDevice(ClassId classId, IDeviceState device)
{
var thi = new ThiDevice(classId, device ?? throw new ArgumentNullException(nameof(device)), _syncptIncrMgr);
_devices.RegisterDevice(classId, thi);
}
public long CreateContext()
{
if (_devices.GetDevice(ClassId.Nvdec) is IDeviceStateWithContext nvdec)
{
return nvdec.CreateContext();
}
return -1;
}
public void DestroyContext(long id)
{
if (id == -1)
{
return;
}
if (_devices.GetDevice(ClassId.Nvdec) is IDeviceStateWithContext nvdec)
{
nvdec.DestroyContext(id);
}
}
private void SetNvdecContext(long id)
{
if (id == -1)
{
return;
}
if (_devices.GetDevice(ClassId.Nvdec) is IDeviceStateWithContext nvdec)
{
nvdec.BindContext(id);
}
}
public void Submit(ReadOnlySpan<int> commandBuffer, long contextId)
{
_commandQueue.Add(new Command(commandBuffer.ToArray(), contextId));
}
private void Process(Command command)
{
SetNvdecContext(command.ContextId);
int[] commandBuffer = command.Buffer;
for (int index = 0; index < commandBuffer.Length; index++)
{
Step(commandBuffer[index]);
}
}
private void Step(int value)
{
if (_mask != 0)
{
int lbs = BitOperations.TrailingZeroCount(_mask);
_mask &= ~(1 << lbs);
DeviceWrite(_offset + lbs, value);
return;
}
else if (_count != 0)
{
_count--;
DeviceWrite(_offset, value);
if (_incrementing)
{
_offset++;
}
return;
}
OpCode opCode = (OpCode)((value >> 28) & 0xf);
switch (opCode)
{
case OpCode.SetClass:
_mask = value & 0x3f;
ClassId classId = (ClassId)((value >> 6) & 0x3ff);
_offset = (value >> 16) & 0xfff;
_device = _devices.GetDevice(classId);
break;
case OpCode.Incr:
case OpCode.NonIncr:
_count = value & 0xffff;
_offset = (value >> 16) & 0xfff;
_incrementing = opCode == OpCode.Incr;
break;
case OpCode.Mask:
_mask = value & 0xffff;
_offset = (value >> 16) & 0xfff;
break;
case OpCode.Imm:
int data = value & 0xfff;
_offset = (value >> 16) & 0xfff;
DeviceWrite(_offset, data);
break;
default:
Logger.Error?.Print(LogClass.Host1x, $"Unsupported opcode \"{opCode}\".");
break;
}
}
private void DeviceWrite(int offset, int data)
{
_device?.Write(offset * 4, data);
}
public void Dispose()
{
_commandQueue.Dispose();
_devices.Dispose();
}
}
}
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