gstreamer/sources/generated/Gst.Video/Gst.VideoSharp.VideoConvertSampleCallbackNative.cs

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2018-01-29 18:56:49 +00:00
// This file was generated by the Gtk# code generator.
// Any changes made will be lost if regenerated.
namespace Gst.VideoSharp {
using System;
using System.Runtime.InteropServices;
#region Autogenerated code
[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
internal delegate void VideoConvertSampleCallbackNative(IntPtr sample, IntPtr error, IntPtr user_data);
internal class VideoConvertSampleCallbackInvoker {
VideoConvertSampleCallbackNative native_cb;
IntPtr __data;
GLib.DestroyNotify __notify;
~VideoConvertSampleCallbackInvoker ()
{
if (__notify == null)
return;
__notify (__data);
}
internal VideoConvertSampleCallbackInvoker (VideoConvertSampleCallbackNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
internal VideoConvertSampleCallbackInvoker (VideoConvertSampleCallbackNative native_cb, IntPtr data) : this (native_cb, data, null) {}
internal VideoConvertSampleCallbackInvoker (VideoConvertSampleCallbackNative native_cb, IntPtr data, GLib.DestroyNotify notify)
{
this.native_cb = native_cb;
__data = data;
__notify = notify;
}
internal Gst.Video.VideoConvertSampleCallback Handler {
get {
return new Gst.Video.VideoConvertSampleCallback(InvokeNative);
}
}
void InvokeNative (Gst.Sample sample, IntPtr error)
{
native_cb (sample == null ? IntPtr.Zero : sample.Handle, error, __data);
}
}
internal class VideoConvertSampleCallbackWrapper {
public void NativeCallback (IntPtr sample, IntPtr error, IntPtr user_data)
{
try {
managed (sample == IntPtr.Zero ? null : (Gst.Sample) GLib.Opaque.GetOpaque (sample, typeof (Gst.Sample), false), error);
if (release_on_call)
gch.Free ();
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException (e, false);
}
}
bool release_on_call = false;
GCHandle gch;
public void PersistUntilCalled ()
{
release_on_call = true;
gch = GCHandle.Alloc (this);
}
internal VideoConvertSampleCallbackNative NativeDelegate;
Gst.Video.VideoConvertSampleCallback managed;
public VideoConvertSampleCallbackWrapper (Gst.Video.VideoConvertSampleCallback managed)
{
this.managed = managed;
if (managed != null)
NativeDelegate = new VideoConvertSampleCallbackNative (NativeCallback);
}
public static Gst.Video.VideoConvertSampleCallback GetManagedDelegate (VideoConvertSampleCallbackNative native)
{
if (native == null)
return null;
VideoConvertSampleCallbackWrapper wrapper = (VideoConvertSampleCallbackWrapper) native.Target;
if (wrapper == null)
return null;
return wrapper.managed;
}
}
#endregion
}