1 files changed, 115 insertions, 0 deletions
diff --git a/mcs/class/System.Drawing/System.Drawing.Imaging/EncoderParameters.cs b/mcs/class/System.Drawing/System.Drawing.Imaging/EncoderParameters.cs
new file mode 100644
index 00000000000..dd5dada5f8c
--- /dev/null
+++ b/mcs/class/System.Drawing/System.Drawing.Imaging/EncoderParameters.cs
@@ -0,0 +1,115 @@
+//
+// System.Drawing.Imaging.EncoderParameters.cs
+//
+// Author: 
+//	Ravindra (rkumar@novell.com)
+//  Vladimir Vukicevic (vladimir@pobox.com)
+//
+// (C) 2004 Novell, Inc.  http://www.novell.com
+//
+
+//
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// 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.
+//
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace System.Drawing.Imaging 
+{
+	public sealed class EncoderParameters : IDisposable
+	{
+		private EncoderParameter[] parameters;
+
+		public EncoderParameters () {
+			parameters = new EncoderParameter[1];
+		}
+
+		public EncoderParameters (int count) {
+			parameters = new EncoderParameter[count];
+		}
+
+		public EncoderParameter[] Param {
+			get {
+				return parameters;
+			}
+
+			set {
+				parameters = value;
+			}
+		}
+
+		public void Dispose () {
+			// Nothing
+			GC.SuppressFinalize(this);
+		}
+#if !TARGET_JVM
+		internal IntPtr ToNativePtr () {
+			IntPtr result;
+			IntPtr ptr;
+
+			// 4 is the initial int32 "count" value
+			result = Marshal.AllocHGlobal (4 + parameters.Length * EncoderParameter.NativeSize());
+
+			ptr = result;
+			Marshal.WriteInt32 (ptr, parameters.Length);
+
+			ptr = (IntPtr) ((int) ptr + 4);
+			for (int i = 0; i < parameters.Length; i++) {
+				parameters[i].ToNativePtr (ptr);
+				ptr = (IntPtr) ((int) ptr + EncoderParameter.NativeSize());
+			}
+
+			return result;
+		}
+
+		/* The IntPtr passed in here is a blob returned from
+		 * GdipImageGetEncoderParameterList.  Its internal pointers
+		 * (i.e. the Value pointers in the EncoderParameter entries)
+		 * point to areas within this block of memeory; this means
+		 * that we need to free it as a whole, and also means that
+		 * we can't Marshal.PtrToStruct our way to victory.
+		 */
+		internal static EncoderParameters FromNativePtr (IntPtr epPtr) {
+			if (epPtr == IntPtr.Zero)
+				return null;
+
+			IntPtr ptr = epPtr;
+
+			int count = Marshal.ReadInt32 (ptr);
+			ptr = (IntPtr) ((int) ptr + 4);
+
+			if (count == 0)
+				return null;
+
+			EncoderParameters result = new EncoderParameters (count);
+
+			for (int i = 0; i < count; i++) {
+				result.parameters[i] = EncoderParameter.FromNativePtr (ptr);
+				ptr = (IntPtr) ((int) ptr + EncoderParameter.NativeSize());
+			}
+
+			return result;
+		}
+#endif
+	}
+}