runtime/phonon/xine/sinknode.cpp

   1 /*  This file is part of the KDE project
   2     Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
   3
   4     This program is free software; you can redistribute it and/or
   5     modify it under the terms of the GNU Library General Public
   6     License as published by the Free Software Foundation; either
   7     version 2 of the License, or (at your option) any later version.
   8
   9     This library is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12     Library General Public License for more details.
  13
  14     You should have received a copy of the GNU Library General Public License
  15     along with this library; see the file COPYING.LIB.  If not, write to
  16     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17     Boston, MA 02110-1301, USA.
  18
  19 */
  20
  21 #include "sinknode.h"
  22 #include "sourcenode.h"
  23 #include "events.h"
  24
  25 namespace Phonon
  26 {
  27 namespace Xine
  28 {
  29
  30 SinkNodeXT::~SinkNodeXT()
  31 {
  32     deleted = true;
  33 }
  34
  35 AudioPort SinkNodeXT::audioPort() const
  36 {
  37     return AudioPort();
  38 }
  39
  40 xine_video_port_t *SinkNodeXT::videoPort() const
  41 {
  42     return 0;
  43 }
  44
  45 SinkNode::SinkNode(SinkNodeXT *_xt)
  46     : m_threadSafeObject(_xt), m_source(0)
  47 {
  48     Q_ASSERT(_xt);
  49 }
  50
  51 SinkNode::~SinkNode()
  52 {
  53     if (m_source) {
  54         m_source->removeSink(this);
  55     }
  56 }
  57
  58 void SinkNode::setSource(SourceNode *s)
  59 {
  60     Q_ASSERT(m_source == 0);
  61     m_source = s;
  62 }
  63
  64 void SinkNode::unsetSource(SourceNode *s)
  65 {
  66     Q_ASSERT(m_source == s);
  67     m_source = 0;
  68 }
  69
  70 SourceNode *SinkNode::source() const
  71 {
  72     return m_source;
  73 }
  74
  75 SourceNode *SinkNode::sourceInterface()
  76 {
  77     return 0;
  78 }
  79
  80 void SinkNode::upstreamEvent(Event *e)
  81 {
  82     Q_ASSERT(e);
  83     if (m_source) {
  84         m_source->upstreamEvent(e);
  85     } else {
  86         if (!--e->ref) {
  87             delete e;
  88         }
  89     }
  90 }
  91
  92 void SinkNode::downstreamEvent(Event *e)
  93 {
  94     Q_ASSERT(e);
  95     SourceNode *iface = sourceInterface();
  96     if (iface) {
  97         iface->downstreamEvent(e);
  98     } else {
  99         if (!--e->ref) {
 100             delete e;
 101         }
 102     }
 103 }
 104
 105 } // namespace Xine
 106 } // namespace Phonon