vendor: import KillerPDF 1.7.5 source (GPL-3.0) as the base for MMD PDF

third_party/PdfSharpCore/Drawing/XBitmapDecoder.cs

@@ -0,0 +1,54 @@
+#region PDFsharp - A .NET library for processing PDF
+//
+// Authors:
+//   Stefan Lange
+//
+// Copyright (c) 2005-2016 empira Software GmbH, Cologne Area (Germany)
+//
+// http://www.PdfSharp.com
+// http://sourceforge.net/projects/pdfsharp
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+// DEALINGS IN THE SOFTWARE.
+#endregion
+
+namespace PdfSharpCore.Drawing
+{
+    /// <summary>
+    /// Provides functionality to load a bitmap image encoded in a specific format.
+    /// </summary>
+    public class XBitmapDecoder
+    {
+        internal XBitmapDecoder()
+        { }
+
+        /// <summary>
+        /// Gets a new instance of the PNG image decoder.
+        /// </summary>
+        public static XBitmapDecoder GetPngDecoder()
+        {
+            return new XPngBitmapDecoder();
+        }
+    }
+
+    internal sealed class XPngBitmapDecoder : XBitmapDecoder
+    {
+        internal XPngBitmapDecoder()
+        { }
+    }
+}