resource destroy now requires a CB

lib/RefreshCS

@@ -1 +1 @@
-Subproject commit 95cd22c48a68f93204b44bc508dec86b6be74e56
+Subproject commit 1e8abe379a0ccc891ce0f4d90793feac59d30948

src/Game.cs

@@ -133,6 +133,8 @@ namespace MoonWorks
                     var alpha = accumulatedElapsedTime / timestep;
 
                     Draw(timestep, alpha);
+
+					GraphicsDevice.SubmitDestroyCommandBuffer();
                 }
             }
         }

src/Graphics/GraphicsDevice.cs

@@ -11,6 +11,7 @@ namespace MoonWorks.Graphics
         public bool IsDisposed { get; private set; }
 
         private readonly List<WeakReference<GraphicsResource>> resources = new List<WeakReference<GraphicsResource>>();
+		private Dictionary<IntPtr, Action<IntPtr, IntPtr, IntPtr>> resourcesToDestroy = new Dictionary<IntPtr, Action<IntPtr, IntPtr, IntPtr>>();
 
         public GraphicsDevice(
             IntPtr deviceWindowHandle,
@@ -56,6 +57,26 @@ namespace MoonWorks.Graphics
             Refresh.Refresh_Wait(Handle);
         }
 
+		internal void SubmitDestroyCommandBuffer()
+		{
+			if (resourcesToDestroy.Count > 0)
+			{
+				var commandBuffer = AcquireCommandBuffer();
+
+				foreach (var kv in resourcesToDestroy)
+				{
+					kv.Value.Invoke(Handle, commandBuffer.Handle, kv.Key);
+				}
+
+				Submit(commandBuffer);
+			}
+		}
+
+		internal void PrepareDestroyResource(GraphicsResource resource, Action<IntPtr, IntPtr, IntPtr> destroyFunction)
+		{
+			resourcesToDestroy.Add(resource.Handle, destroyFunction);
+		}
+
         internal void AddResourceReference(WeakReference<GraphicsResource> resourceReference)
         {
             lock (resources)

src/Graphics/GraphicsResource.cs

@@ -8,7 +8,7 @@ namespace MoonWorks.Graphics
         public IntPtr Handle { get; protected set; }
 
         public bool IsDisposed { get; private set; }
-        protected abstract Action<IntPtr, IntPtr> QueueDestroyFunction { get; }
+        protected abstract Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction { get; }
 
         private WeakReference<GraphicsResource> selfReference;
 
@@ -24,7 +24,7 @@ namespace MoonWorks.Graphics
         {
             if (!IsDisposed)
             {
-                QueueDestroyFunction(Device.Handle, Handle);
+				Device.PrepareDestroyResource(this, QueueDestroyFunction);
 
                 if (selfReference != null)
                 {

src/Graphics/Resources/Buffer.cs

@@ -9,7 +9,7 @@ namespace MoonWorks.Graphics
     /// </summary>
     public class Buffer : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyBuffer;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyBuffer;
 
         /// <summary>
         /// Creates a buffer.

src/Graphics/Resources/ComputePipeline.cs

@@ -6,7 +6,7 @@ namespace MoonWorks.Graphics
 {
     public class ComputePipeline : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyComputePipeline;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyComputePipeline;
 
         public ShaderStageState ComputeShaderState { get; }
 

src/Graphics/Resources/Framebuffer.cs

@@ -9,7 +9,7 @@ namespace MoonWorks.Graphics
     /// </summary>
     public class Framebuffer : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyFramebuffer;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyFramebuffer;
 
         public RenderTarget DepthStencilTarget { get; }
 

src/Graphics/Resources/GraphicsPipeline.cs

@@ -10,7 +10,7 @@ namespace MoonWorks.Graphics
     /// </summary>
     public class GraphicsPipeline : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyGraphicsPipeline;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyGraphicsPipeline;
 
         public ShaderStageState VertexShaderState { get; }
         public ShaderStageState FragmentShaderState { get; }

src/Graphics/Resources/RenderPass.cs

@@ -8,7 +8,7 @@ namespace MoonWorks.Graphics
     /// </summary>
     public class RenderPass : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyRenderPass;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyRenderPass;
 
         /// <summary>
         /// Creates a render pass using color target descriptions.

src/Graphics/Resources/RenderTarget.cs

@@ -11,7 +11,7 @@ namespace MoonWorks.Graphics
         public TextureSlice TextureSlice { get; }
         public TextureFormat Format => TextureSlice.Texture.Format;
 
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyRenderTarget;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyRenderTarget;
 
         /// <summary>
         /// Creates a render target backed by a texture.

src/Graphics/Resources/Sampler.cs

@@ -8,7 +8,7 @@ namespace MoonWorks.Graphics
     /// </summary>
     public class Sampler : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroySampler;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroySampler;
 
         public Sampler(
             GraphicsDevice device,

src/Graphics/Resources/ShaderModule.cs

@@ -8,7 +8,7 @@ namespace MoonWorks.Graphics
     /// </summary>
     public class ShaderModule : GraphicsResource
     {
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyShaderModule;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyShaderModule;
 
         public unsafe ShaderModule(GraphicsDevice device, string filePath) : base(device)
         {

src/Graphics/Resources/Texture.cs

@@ -17,7 +17,7 @@ namespace MoonWorks.Graphics
         public SampleCount SampleCount { get; }
         public TextureUsageFlags UsageFlags { get; }
 
-        protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyTexture;
+        protected override Action<IntPtr, IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyTexture;
 
         /// <summary>
         /// Loads a PNG from a file path.