vendoring NetVips

vendor/NetVips/Interpolate.cs

@@ -0,0 +1,43 @@
+using System;
+using NetVips.Internal;
+
+namespace NetVips;
+
+/// <summary>
+/// Make interpolators for operators like <see cref="Image.Affine"/>.
+/// </summary>
+public class Interpolate : VipsObject
+{
+    private Interpolate(nint pointer) : base(pointer)
+    {
+    }
+
+    /// <summary>
+    /// Make a new interpolator by name.
+    /// </summary>
+    /// <remarks>
+    /// Make a new interpolator from the libvips class nickname. For example:
+    /// <code language="lang-csharp">
+    /// var inter = Interpolate.NewFromName("bicubic");
+    /// </code>
+    /// You can get a list of all supported interpolators from the command-line
+    /// with:
+    /// <code language="lang-shell">
+    /// $ vips -l interpolate
+    /// </code>
+    /// See for example <see cref="Image.Affine"/>.
+    /// </remarks>
+    /// <param name="name">libvips class nickname.</param>
+    /// <returns>A new <see cref="Interpolate"/>.</returns>
+    /// <exception cref="VipsException">If unable to make a new interpolator from <paramref name="name"/>.</exception>
+    public static Interpolate NewFromName(string name)
+    {
+        var vi = VipsInterpolate.New(name);
+        if (vi == IntPtr.Zero)
+        {
+            throw new VipsException($"no such interpolator {name}");
+        }
+
+        return new Interpolate(vi);
+    }
+}