1 files changed, 97 insertions, 0 deletions
diff --git a/intern/audaspace/FX/AUD_VolumeReader.cpp b/intern/audaspace/FX/AUD_VolumeReader.cpp
new file mode 100644
index 00000000000..fc3f20152a6
--- /dev/null
+++ b/intern/audaspace/FX/AUD_VolumeReader.cpp
@@ -0,0 +1,97 @@
+/*
+ * $Id$
+ *
+ * ***** BEGIN LGPL LICENSE BLOCK *****
+ *
+ * Copyright 2009 Jörg Hermann Müller
+ *
+ * This file is part of AudaSpace.
+ *
+ * AudaSpace is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * AudaSpace 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with AudaSpace.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ***** END LGPL LICENSE BLOCK *****
+ */
+
+#include "AUD_VolumeReader.h"
+#include "AUD_Buffer.h"
+
+#include <cstring>
+
+AUD_VolumeReader::AUD_VolumeReader(AUD_IReader* reader, float volume) :
+		AUD_EffectReader(reader),
+		m_volume(volume)
+{
+	int bigendian = 1;
+	bigendian = (((char*)&bigendian)[0]) ? 0: 1; // 1 if Big Endian
+
+	switch(m_reader->getSpecs().format)
+	{
+	case AUD_FORMAT_S16:
+		m_adjust = AUD_volume_adjust<int16_t>;
+		break;
+	case AUD_FORMAT_S32:
+		m_adjust = AUD_volume_adjust<int32_t>;
+		break;
+	case AUD_FORMAT_FLOAT32:
+		m_adjust = AUD_volume_adjust<float>;
+		break;
+	case AUD_FORMAT_FLOAT64:
+		m_adjust = AUD_volume_adjust<double>;
+		break;
+	case AUD_FORMAT_U8:
+		m_adjust = AUD_volume_adjust_u8;
+		break;
+	case AUD_FORMAT_S24:
+		m_adjust = bigendian ? AUD_volume_adjust_s24_be :
+							   AUD_volume_adjust_s24_le;
+		break;
+	default:
+		delete m_reader;
+		AUD_THROW(AUD_ERROR_READER);
+	}
+
+	m_buffer = new AUD_Buffer(); AUD_NEW("buffer")
+}
+
+AUD_VolumeReader::~AUD_VolumeReader()
+{
+	delete m_buffer; AUD_DELETE("buffer")
+}
+
+bool AUD_VolumeReader::notify(AUD_Message &message)
+{
+	if(message.type == AUD_MSG_VOLUME)
+	{
+		m_volume = message.volume;
+
+		m_reader->notify(message);
+
+		return true;
+	}
+	return m_reader->notify(message);
+}
+
+void AUD_VolumeReader::read(int & length, sample_t* & buffer)
+{
+	sample_t* buf;
+	AUD_Specs specs = m_reader->getSpecs();
+
+	m_reader->read(length, buf);
+	if(m_buffer->getSize() < length*AUD_SAMPLE_SIZE(specs))
+		m_buffer->resize(length*AUD_SAMPLE_SIZE(specs));
+
+	buffer = m_buffer->getBuffer();
+
+	m_adjust(buffer, buf, length * specs.channels, m_volume);
+}