static void OverrideAlloc(GLib.GType gtype, AllocNativeDelegate callback)
{
unsafe {
IntPtr *raw_ptr = (IntPtr *)(((long)gtype.GetClassPtr()) + (long)class_abi.GetFieldOffset("alloc"));
*raw_ptr = Marshal.GetFunctionPointerForDelegate((Delegate)callback);
}
}
private Gst.FlowReturn InternalAlloc(Gst.Buffer buf)
{
AllocNativeDelegate unmanaged = null;
unsafe {
IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("alloc"));
unmanaged = (AllocNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(AllocNativeDelegate));
}
if (unmanaged == null)
{
return((Gst.FlowReturn) 0);
}
int __result = unmanaged(this.Handle, buf == null ? IntPtr.Zero : buf.Handle);
return((Gst.FlowReturn)__result);
}
private Gst.Memory InternalAlloc(ulong size, Gst.AllocationParams parms)
{
AllocNativeDelegate unmanaged = null;
unsafe {
IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("alloc"));
unmanaged = (AllocNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(AllocNativeDelegate));
}
if (unmanaged == null)
{
return(null);
}
IntPtr native_parms = GLib.Marshaller.StructureToPtrAlloc(parms);
IntPtr __result = unmanaged(this.Handle, new UIntPtr(size), native_parms);
Marshal.FreeHGlobal(native_parms);
return(__result == IntPtr.Zero ? null : (Gst.Memory)GLib.Opaque.GetOpaque(__result, typeof(Gst.Memory), true));
}