Move solution and projects to src

src/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoClass.cs

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+using Ryujinx.Graphics.Device;
+using Ryujinx.Graphics.Gpu.Engine.MME;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
+{
+    /// <summary>
+    /// Represents a GPU General Purpose FIFO class.
+    /// </summary>
+    class GPFifoClass : IDeviceState
+    {
+        private readonly GpuContext _context;
+        private readonly GPFifoProcessor _parent;
+        private readonly DeviceState<GPFifoClassState> _state;
+
+        private int _previousSubChannel;
+        private bool _createSyncPending;
+
+        private const int MacrosCount = 0x80;
+
+        // Note: The size of the macro memory is unknown, we just make
+        // a guess here and use 256kb as the size. Increase if needed.
+        private const int MacroCodeSize = 256 * 256;
+
+        private readonly Macro[] _macros;
+        private readonly int[] _macroCode;
+
+        /// <summary>
+        /// Creates a new instance of the GPU General Purpose FIFO class.
+        /// </summary>
+        /// <param name="context">GPU context</param>
+        /// <param name="parent">Parent GPU General Purpose FIFO processor</param>
+        public GPFifoClass(GpuContext context, GPFifoProcessor parent)
+        {
+            _context = context;
+            _parent = parent;
+            _state = new DeviceState<GPFifoClassState>(new Dictionary<string, RwCallback>
+            {
+                { nameof(GPFifoClassState.Semaphored), new RwCallback(Semaphored, null) },
+                { nameof(GPFifoClassState.Syncpointb), new RwCallback(Syncpointb, null) },
+                { nameof(GPFifoClassState.WaitForIdle), new RwCallback(WaitForIdle, null) },
+                { nameof(GPFifoClassState.SetReference), new RwCallback(SetReference, null) },
+                { nameof(GPFifoClassState.LoadMmeInstructionRam), new RwCallback(LoadMmeInstructionRam, null) },
+                { nameof(GPFifoClassState.LoadMmeStartAddressRam), new RwCallback(LoadMmeStartAddressRam, null) },
+                { nameof(GPFifoClassState.SetMmeShadowRamControl), new RwCallback(SetMmeShadowRamControl, null) }
+            });
+
+            _macros = new Macro[MacrosCount];
+            _macroCode = new int[MacroCodeSize];
+        }
+
+        /// <summary>
+        /// Create any syncs from WaitForIdle command that are currently pending.
+        /// </summary>
+        public void CreatePendingSyncs()
+        {
+            if (_createSyncPending)
+            {
+                _createSyncPending = false;
+                _context.CreateHostSyncIfNeeded(false, false);
+            }
+        }
+
+        /// <summary>
+        /// Reads data from the class registers.
+        /// </summary>
+        /// <param name="offset">Register byte offset</param>
+        /// <returns>Data at the specified offset</returns>
+        public int Read(int offset) => _state.Read(offset);
+
+        /// <summary>
+        /// Writes data to the class registers.
+        /// </summary>
+        /// <param name="offset">Register byte offset</param>
+        /// <param name="data">Data to be written</param>
+        public void Write(int offset, int data) => _state.Write(offset, data);
+
+        /// <summary>
+        /// Writes a GPU counter to guest memory.
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void Semaphored(int argument)
+        {
+            ulong address = ((ulong)_state.State.SemaphorebOffsetLower << 2) |
+                            ((ulong)_state.State.SemaphoreaOffsetUpper << 32);
+
+            int value = _state.State.SemaphorecPayload;
+
+            SemaphoredOperation operation = _state.State.SemaphoredOperation;
+
+            if (_state.State.SemaphoredReleaseSize == SemaphoredReleaseSize.SixteenBytes)
+            {
+                _parent.MemoryManager.Write(address + 4, 0);
+                _parent.MemoryManager.Write(address + 8, _context.GetTimestamp());
+            }
+
+            // TODO: Acquire operations (Wait), interrupts for invalid combinations.
+            if (operation == SemaphoredOperation.Release)
+            {
+                _parent.MemoryManager.Write(address, value);
+            }
+            else if (operation == SemaphoredOperation.Reduction)
+            {
+                bool signed = _state.State.SemaphoredFormat == SemaphoredFormat.Signed;
+
+                int mem = _parent.MemoryManager.Read<int>(address);
+
+                switch (_state.State.SemaphoredReduction)
+                {
+                    case SemaphoredReduction.Min:
+                        value = signed ? Math.Min(mem, value) : (int)Math.Min((uint)mem, (uint)value);
+                        break;
+                    case SemaphoredReduction.Max:
+                        value = signed ? Math.Max(mem, value) : (int)Math.Max((uint)mem, (uint)value);
+                        break;
+                    case SemaphoredReduction.Xor:
+                        value ^= mem;
+                        break;
+                    case SemaphoredReduction.And:
+                        value &= mem;
+                        break;
+                    case SemaphoredReduction.Or:
+                        value |= mem;
+                        break;
+                    case SemaphoredReduction.Add:
+                        value += mem;
+                        break;
+                    case SemaphoredReduction.Inc:
+                        value = (uint)mem < (uint)value ? mem + 1 : 0;
+                        break;
+                    case SemaphoredReduction.Dec:
+                        value = (uint)mem > 0 && (uint)mem <= (uint)value ? mem - 1 : value;
+                        break;
+                }
+
+                _parent.MemoryManager.Write(address, value);
+            }
+        }
+
+        /// <summary>
+        /// Apply a fence operation on a syncpoint.
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void Syncpointb(int argument)
+        {
+            SyncpointbOperation operation = _state.State.SyncpointbOperation;
+
+            uint syncpointId = (uint)_state.State.SyncpointbSyncptIndex;
+
+            if (operation == SyncpointbOperation.Wait)
+            {
+                uint threshold = (uint)_state.State.SyncpointaPayload;
+
+                _context.Synchronization.WaitOnSyncpoint(syncpointId, threshold, Timeout.InfiniteTimeSpan);
+            }
+            else if (operation == SyncpointbOperation.Incr)
+            {
+                _context.CreateHostSyncIfNeeded(true, true);
+                _context.Synchronization.IncrementSyncpoint(syncpointId);
+            }
+
+            _context.AdvanceSequence();
+        }
+
+        /// <summary>
+        /// Waits for the GPU to be idle.
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void WaitForIdle(int argument)
+        {
+            _parent.PerformDeferredDraws();
+            _context.Renderer.Pipeline.Barrier();
+
+            _createSyncPending = true;
+        }
+
+        /// <summary>
+        /// Used as an indirect data barrier on NVN. When used, access to previously written data must be coherent.
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void SetReference(int argument)
+        {
+            _context.Renderer.Pipeline.CommandBufferBarrier();
+
+            _context.CreateHostSyncIfNeeded(false, true);
+        }
+
+        /// <summary>
+        /// Sends macro code/data to the MME.
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void LoadMmeInstructionRam(int argument)
+        {
+            _macroCode[_state.State.LoadMmeInstructionRamPointer++] = argument;
+        }
+
+        /// <summary>
+        /// Binds a macro index to a position for the MME
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void LoadMmeStartAddressRam(int argument)
+        {
+            _macros[_state.State.LoadMmeStartAddressRamPointer++] = new Macro(argument);
+        }
+
+        /// <summary>
+        /// Changes the shadow RAM control.
+        /// </summary>
+        /// <param name="argument">Method call argument</param>
+        public void SetMmeShadowRamControl(int argument)
+        {
+            _parent.SetShadowRamControl(argument);
+        }
+
+        /// <summary>
+        /// Pushes an argument to a macro.
+        /// </summary>
+        /// <param name="index">Index of the macro</param>
+        /// <param name="gpuVa">GPU virtual address where the command word is located</param>
+        /// <param name="argument">Argument to be pushed to the macro</param>
+        public void MmePushArgument(int index, ulong gpuVa, int argument)
+        {
+            _macros[index].PushArgument(gpuVa, argument);
+        }
+
+        /// <summary>
+        /// Prepares a macro for execution.
+        /// </summary>
+        /// <param name="index">Index of the macro</param>
+        /// <param name="argument">Initial argument passed to the macro</param>
+        public void MmeStart(int index, int argument)
+        {
+            _macros[index].StartExecution(_context, _parent, _macroCode, argument);
+        }
+
+        /// <summary>
+        /// Executes a macro.
+        /// </summary>
+        /// <param name="index">Index of the macro</param>
+        /// <param name="state">Current GPU state</param>
+        public void CallMme(int index, IDeviceState state)
+        {
+            _macros[index].Execute(_macroCode, state);
+        }
+    }
+}