[Xcode9] Add IOSurface bindings

src/Constants.iOS.cs.in

@@ -115,5 +115,6 @@ namespace MonoTouch {
 		public const string VisionLibrary = "/System/Library/Frameworks/Vision.framework/Vision";
 		public const string FileProviderLibrary = "/System/Library/Frameworks/FileProvider.framework/FileProvider";
 		public const string FileProviderUILibrary = "/System/Library/Frameworks/FileProviderUI.framework/FileProviderUI";
+		public const string IOSurfaceLibrary = "/System/Library/Frameworks/IOSurface.framework/IOSurface";
 	}
 }

src/Constants.mac.cs.in

@@ -129,5 +129,6 @@ namespace MonoMac {
 		// macOS 10.13
 		public const string CoreMLLibrary = "/System/Library/Frameworks/CoreML.framework/CoreML";
 		public const string VisionLibrary = "/System/Library/Frameworks/Vision.framework/Vision";
+		public const string IOSurfaceLibrary = "/System/Library/Frameworks/IOSurface.framework/IOSurface";
 	}
 }

src/IOSurface/IODefs.cs

@@ -0,0 +1,38 @@
+//
+// IOSurface
+//
+// Authors: 
+//    Miguel de Icaza (miguel@xamarin.com)
+//
+// Copyright 2017 Microsoft
+//
+
+using System;
+using XamCore.ObjCRuntime;
+
+namespace XamCore.IOSurface {
+
+	public enum IOSurfaceLockOptions : uint {
+		ReadOnly = 1,
+		AvoidSync = 2
+	}
+
+	public enum IOSurfacePurgeabilityState : uint {
+		NonVolatile = 0,
+		Volatile = 1,
+		Empty = 2,
+		KeepCurrent = 3
+	}
+
+	// To be used with kIOSurfaceCacheMode or IOSurfacePropertyKeyCacheMode
+	public enum IOSurfaceMemoryMap {
+		DefaultCache = 0,
+		InhibitCache = 1 << 8,
+		WriteThruCache = 2 << 8,
+		CopybackCache = 3 << 8,
+		WriteCombineCache = 4 << 8,
+		CopybackInnerCache = 5 << 8
+	};
+
+
+}

src/IOSurface/IOSurface.cs

@@ -0,0 +1,90 @@
+// 
+// IOSurface.cs
+//
+// Copyright 2016 Microsoft 
+//
+// 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.
+//
+#if XAMCORE_2_0
+using System;
+using System.Runtime.InteropServices;
+using XamCore.CoreFoundation;
+using XamCore.ObjCRuntime;
+
+namespace XamCore.IOSurface {
+	public partial class IOSurface {
+
+		// kern_return_t
+		[iOS (10,0), Mac(10,12)]
+		public int Lock (IOSurfaceLockOptions options, ref int seed)
+		{
+			unsafe {
+				fixed (int *p = &seed){
+					return _Lock (options, (IntPtr) p);
+				}
+			}
+		}
+
+		// kern_return_t
+		[iOS (10,0), Mac(10,12)]
+		public int Lock (IOSurfaceLockOptions options)
+		{
+			return _Lock (options, IntPtr.Zero);
+		}
+
+		// kern_return_t
+		[iOS (10,0), Mac(10,12)]
+		public int Unlock (IOSurfaceLockOptions options, ref int seed)
+		{
+			unsafe {
+				fixed (int *p = &seed){
+					return _Unlock (options, (IntPtr) p);
+				}
+			}
+		}
+
+		// kern_return_t
+		[iOS (10,0), Mac(10,12)]
+		public int Unlock (IOSurfaceLockOptions options)
+		{
+			return _Unlock (options, IntPtr.Zero);
+		}
+
+#if !MONOMAC
+		// kern_return_t
+		[iOS (11, 0)]
+		public int SetPurgeable (IOSurfacePurgeabilityState newState, ref IOSurfacePurgeabilityState oldState)
+		{
+			unsafe {
+				fixed (IOSurfacePurgeabilityState *p = &oldState){
+					return _SetPurgeable (newState, (IntPtr) p);
+				}
+			}
+		}
+
+		[iOS (11, 0)]
+		public int SetPurgeable (IOSurfacePurgeabilityState newState)
+		{
+			return _SetPurgeable (newState, IntPtr.Zero);
+		}
+#endif
+	}
+}
+#endif

src/frameworks.sources

@@ -863,6 +863,13 @@ INTENTS_SOURCES = \
 	Intents/INStartWorkoutIntent.cs \
 	Intents/INSaveProfileInCarIntent.cs \
 
+# IOSurface
+IOSURFACE_CORE_SOURCES = \
+	IOSurface/IODefs.cs
+
+IOSURFACE_SOURCES = \
+	IOSurface/IOSurface.cs
+
 # JavaScriptCore
 
 JAVASCRIPTCORE_SOURCES = \
@@ -1587,7 +1594,8 @@ MAC_FRAMEWORKS =            \
 	GLKit                   \
 	ImageIO                 \
 	ImageKit                \
-	Intents                 \
+	Intents			\
+	IOSurface 		\
 	JavaScriptCore          \
 	LocalAuthentication     \
 	MapKit                  \
@@ -1670,6 +1678,7 @@ IOS_FRAMEWORKS =         \
 	ImageIO \
 	Intents \
 	IntentsUI \
+	IOSurface \
 	JavaScriptCore \
 	LocalAuthentication \
 	MapKit \
@@ -1781,12 +1790,12 @@ TVOS_FRAMEWORKS =           \
 	StoreKit                \
 	SystemConfiguration     \
 	TVMLKit                 \
-	TVServices				\
+	TVServices		\
 	UIKit                   \
 	UserNotifications       \
 	VideoSubscriberAccount  \
 	VideoToolbox            \
-	Vision            \
+	Vision
 
 #
 # Compute the SOURCES variables.