New Image3D command.

Quik/CommandMachine/CommandList.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
 
 namespace Quik.CommandMachine
 {
@@ -230,7 +231,7 @@ namespace Quik.CommandMachine
             Enqueue(uv);
         }
 
-        public void Image(QuikTexture texture, QRectangle[] rectangles, bool interleavedUV = false)
+        public void Image(QuikTexture texture, ReadOnlySpan<QRectangle> rectangles, bool interleavedUV = false)
         {
             int count = rectangles.Length;
             ImageCommandFlags flags = ImageCommandFlags.None;
@@ -251,7 +252,7 @@ namespace Quik.CommandMachine
             }
         }
 
-        public void Image(QuikTexture texture, QRectangle[] rectangles, QRectangle[] uvs)
+        public void Image(QuikTexture texture, ReadOnlySpan<QRectangle> rectangles, ReadOnlySpan<QRectangle> uvs)
         {
             int count = Math.Min(rectangles.Length, uvs.Length);
             Enqueue(Command.Image);
@@ -265,6 +266,30 @@ namespace Quik.CommandMachine
             }
         }
 
+        public void Image3D(QuikTexture texture, in Image3DCall call)
+        {
+            Enqueue(Command.Image);
+            Enqueue(new Frame(ImageCommandFlags.Image3d | ImageCommandFlags.Single));
+            Enqueue(new Frame(texture));
+            Enqueue(call.Rectangle);
+            Enqueue(call.UVs);
+            Enqueue(new Frame(call.Layer));
+        }
+
+        public void Image3D(QuikTexture texture, ReadOnlySpan<Image3DCall> calls)
+        {
+            Enqueue(Command.Image);
+            Enqueue(new Frame((int)ImageCommandFlags.Image3d, calls.Length));
+            Enqueue(new Frame(texture));
+
+            foreach (Image3DCall call in calls)
+            {
+                Enqueue(call.Rectangle);
+                Enqueue(call.UVs);
+                Enqueue(new Frame(call.Layer));
+            }
+        }
+
         public void Splice(CommandList list)
         {
             foreach (Frame frame in list)

Quik/CommandMachine/Image.cs

@@ -0,0 +1,18 @@
+namespace Quik.CommandMachine
+{
+    public enum ImageCommandFlags
+    {
+        None = 0,
+
+        Single  = 1 << 0,
+        UVs     = 1 << 1,
+        Image3d = 1 << 2,
+    }
+
+    public struct Image3DCall
+    {
+        public QRectangle Rectangle;
+        public QRectangle UVs;
+        public int Layer;
+    }
+}

Quik/CommandMachine/ImageCommandFlags.cs

@@ -1,10 +0,0 @@
-namespace Quik.CommandMachine
-{
-    public enum ImageCommandFlags
-    {
-        None = 0,
-
-        Single = 1 << 0,
-        UVs    = 1 << 1
-    }
-}