1 files changed, 102 insertions, 0 deletions
diff --git a/extern/audaspace/src/sequence/DoubleReader.cpp b/extern/audaspace/src/sequence/DoubleReader.cpp
new file mode 100644
index 00000000000..33ab34ce366
--- /dev/null
+++ b/extern/audaspace/src/sequence/DoubleReader.cpp
@@ -0,0 +1,102 @@
+/*******************************************************************************
+ * Copyright 2009-2016 Jörg Müller
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+#include "sequence/DoubleReader.h"
+
+#include <cstring>
+
+AUD_NAMESPACE_BEGIN
+
+DoubleReader::DoubleReader(std::shared_ptr<IReader> reader1, std::shared_ptr<IReader> reader2) :
+	m_reader1(reader1), m_reader2(reader2), m_finished1(false)
+{
+	Specs s1, s2;
+	s1 = reader1->getSpecs();
+	s2 = reader2->getSpecs();
+}
+
+DoubleReader::~DoubleReader()
+{
+}
+
+bool DoubleReader::isSeekable() const
+{
+	return m_reader1->isSeekable() && m_reader2->isSeekable();
+}
+
+void DoubleReader::seek(int position)
+{
+	m_reader1->seek(position);
+
+	int pos1 = m_reader1->getPosition();
+
+	if((m_finished1 = (pos1 < position)))
+		m_reader2->seek(position - pos1);
+	else
+		m_reader2->seek(0);
+}
+
+int DoubleReader::getLength() const
+{
+	int len1 = m_reader1->getLength();
+	int len2 = m_reader2->getLength();
+	if(len1 < 0 || len2 < 0)
+		return -1;
+	return len1 + len2;
+}
+
+int DoubleReader::getPosition() const
+{
+	return m_reader1->getPosition() + m_reader2->getPosition();
+}
+
+Specs DoubleReader::getSpecs() const
+{
+	return m_finished1 ? m_reader1->getSpecs() : m_reader2->getSpecs();
+}
+
+void DoubleReader::read(int& length, bool& eos, sample_t* buffer)
+{
+	eos = false;
+
+	if(!m_finished1)
+	{
+		int len = length;
+
+		m_reader1->read(len, m_finished1, buffer);
+
+		if(len < length)
+		{
+			Specs specs1, specs2;
+			specs1 = m_reader1->getSpecs();
+			specs2 = m_reader2->getSpecs();
+			if(AUD_COMPARE_SPECS(specs1, specs2))
+			{
+				int len2 = length - len;
+				m_reader2->read(len2, eos, buffer + specs1.channels * len);
+				length = len + len2;
+			}
+			else
+				length = len;
+		}
+	}
+	else
+	{
+		m_reader2->read(length, eos, buffer);
+	}
+}
+
+AUD_NAMESPACE_END