2 files changed, 52 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Gpu/Synchronization/HostSyncFlags.cs b/src/Ryujinx.Graphics.Gpu/Synchronization/HostSyncFlags.cs
new file mode 100644
index 00000000..42666991
--- /dev/null
+++ b/src/Ryujinx.Graphics.Gpu/Synchronization/HostSyncFlags.cs
@@ -0,0 +1,30 @@
+using System;
+
+namespace Ryujinx.Graphics.Gpu.Synchronization
+{
+    /// <summary>
+    /// Modifier flags for creating host sync.
+    /// </summary>
+    [Flags]
+    internal enum HostSyncFlags
+    {
+        None = 0,
+
+        /// <summary>
+        /// Present if host sync is being created by a syncpoint.
+        /// </summary>
+        Syncpoint = 1 << 0,
+
+        /// <summary>
+        /// Present if the sync should signal as soon as possible.
+        /// </summary>
+        Strict = 1 << 1,
+
+        /// <summary>
+        /// Present will force the sync to be created, even if no actions are eligible.
+        /// </summary>
+        Force = 1 << 2,
+
+        StrictSyncpoint = Strict | Syncpoint
+    }
+}
diff --git a/src/Ryujinx.Graphics.Gpu/Synchronization/ISyncActionHandler.cs b/src/Ryujinx.Graphics.Gpu/Synchronization/ISyncActionHandler.cs
new file mode 100644
index 00000000..d470d2f0
--- /dev/null
+++ b/src/Ryujinx.Graphics.Gpu/Synchronization/ISyncActionHandler.cs
@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.Gpu.Synchronization
+{
+    /// <summary>
+    /// This interface indicates that a class can be registered for a sync action.
+    /// </summary>
+    interface ISyncActionHandler
+    {
+        /// <summary>
+        /// Action to be performed when some synchronizing action is reached after modification.
+        /// Generally used to register read/write tracking to flush resources from GPU when their memory is used.
+        /// </summary>
+        /// <param name="syncpoint">True if the action is a guest syncpoint</param>
+        /// <returns>True if the action is to be removed, false otherwise</returns>
+        bool SyncAction(bool syncpoint);
+
+        /// <summary>
+        /// Action to be performed immediately before sync is created.
+        /// </summary>
+        /// <param name="syncpoint">True if the action is a guest syncpoint</param>
+        void SyncPreAction(bool syncpoint) { }
+    }
+}