subprojects/gstreamer-sharp/sources/generated/Gst/GstSharp.BufferListFuncNative.cs

   1 // This file was generated by the Gtk# code generator.
   2 // Any changes made will be lost if regenerated.
   3
   4 namespace GstSharp {
   5
   6         using System;
   7         using System.Runtime.InteropServices;
   8
   9 #region Autogenerated code
  10         [UnmanagedFunctionPointer (CallingConvention.Cdecl)]
  11         internal delegate bool BufferListFuncNative(out IntPtr buffer, uint idx, IntPtr user_data);
  12
  13         internal class BufferListFuncInvoker {
  14
  15                 BufferListFuncNative native_cb;
  16                 IntPtr __data;
  17                 GLib.DestroyNotify __notify;
  18
  19                 ~BufferListFuncInvoker ()
  20                 {
  21                         if (__notify == null)
  22                                 return;
  23                         __notify (__data);
  24                 }
  25
  26                 internal BufferListFuncInvoker (BufferListFuncNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
  27
  28                 internal BufferListFuncInvoker (BufferListFuncNative native_cb, IntPtr data) : this (native_cb, data, null) {}
  29
  30                 internal BufferListFuncInvoker (BufferListFuncNative native_cb, IntPtr data, GLib.DestroyNotify notify)
  31                 {
  32                         this.native_cb = native_cb;
  33                         __data = data;
  34                         __notify = notify;
  35                 }
  36
  37                 internal Gst.BufferListFunc Handler {
  38                         get {
  39                                 return new Gst.BufferListFunc(InvokeNative);
  40                         }
  41                 }
  42
  43                 bool InvokeNative (out Gst.Buffer buffer, uint idx)
  44                 {
  45                         IntPtr native_buffer;
  46                         bool __result = native_cb (out native_buffer, idx, __data);
  47                         buffer = native_buffer == IntPtr.Zero ? null : (Gst.Buffer) GLib.Opaque.GetOpaque (native_buffer, typeof (Gst.Buffer), true);
  48                         return __result;
  49                 }
  50         }
  51
  52         internal class BufferListFuncWrapper {
  53
  54                 public bool NativeCallback (out IntPtr buffer, uint idx, IntPtr user_data)
  55                 {
  56                         try {
  57                                 Gst.Buffer mybuffer;
  58
  59                                 bool __ret = managed (out mybuffer, idx);
  60                                 buffer = mybuffer == null ? IntPtr.Zero : mybuffer.Handle;
  61
  62                                 if (release_on_call)
  63                                         gch.Free ();
  64                                 return __ret;
  65                         } catch (Exception e) {
  66                                 GLib.ExceptionManager.RaiseUnhandledException (e, true);
  67                                 // NOTREACHED: Above call does not return.
  68                                 throw e;
  69                         }
  70                 }
  71
  72                 bool release_on_call = false;
  73                 GCHandle gch;
  74
  75                 public void PersistUntilCalled ()
  76                 {
  77                         release_on_call = true;
  78                         gch = GCHandle.Alloc (this);
  79                 }
  80
  81                 internal BufferListFuncNative NativeDelegate;
  82                 Gst.BufferListFunc managed;
  83
  84                 public BufferListFuncWrapper (Gst.BufferListFunc managed)
  85                 {
  86                         this.managed = managed;
  87                         if (managed != null)
  88                                 NativeDelegate = new BufferListFuncNative (NativeCallback);
  89                 }
  90
  91                 public static Gst.BufferListFunc GetManagedDelegate (BufferListFuncNative native)
  92                 {
  93                         if (native == null)
  94                                 return null;
  95                         BufferListFuncWrapper wrapper = (BufferListFuncWrapper) native.Target;
  96                         if (wrapper == null)
  97                                 return null;
  98                         return wrapper.managed;
  99                 }
 100         }
 101 #endregion
 102 }