1 files changed, 79 insertions, 0 deletions
diff --git a/src/plugins/Effect/monotostereo/monotostereoplugin.cpp b/src/plugins/Effect/monotostereo/monotostereoplugin.cpp
new file mode 100644
index 000000000..b043d3f65
--- /dev/null
+++ b/src/plugins/Effect/monotostereo/monotostereoplugin.cpp
@@ -0,0 +1,79 @@
+/***************************************************************************
+ *   Copyright (C) 2018 by Ilya Kotov                                      *
+ *   forkotov02@ya.ru                                                      *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
+ ***************************************************************************/
+
+#include <stdlib.h>
+#include <qmmp/qmmp.h>
+#include "monotostereoplugin.h"
+
+MonoToStereoPlugin::MonoToStereoPlugin() : Effect()
+{
+    m_tmp = 0;
+    m_size = 0;
+    m_enabled = false;
+}
+
+MonoToStereoPlugin::~MonoToStereoPlugin()
+{
+    if(m_tmp)
+    {
+        delete[] m_tmp;
+        m_tmp = 0;
+    }
+}
+
+void MonoToStereoPlugin::applyEffect(Buffer *b)
+{
+    if(m_enabled)
+    {
+        if(m_size < b->samples)
+        {
+            if(m_tmp)
+                delete [] m_tmp;
+            m_tmp = new float[b->samples];
+        }
+        memcpy(m_tmp, b->data, b->samples * sizeof(float));
+
+        b->samples *= 2;
+
+        if(b->samples > b->size)
+        {
+            delete [] b->data;
+            b->size = b->samples;
+            b->data = new float[b->size];
+        }
+
+        for(size_t i = 0; i < b->samples; ++i)
+            b->data[i] = m_tmp[i >> 1];
+    }
+}
+
+void MonoToStereoPlugin::configure(quint32 freq, ChannelMap map)
+{
+    if(map.count() == 1)
+    {
+        m_enabled = true;
+        Effect::configure(freq, ChannelMap(2));
+    }
+    else
+    {
+        m_enabled = false;
+        Effect::configure(freq, map);
+    }
+}