1 files changed, 83 insertions, 0 deletions
diff --git a/intern/audaspace/SDL/AUD_SDLMixer.cpp b/intern/audaspace/SDL/AUD_SDLMixer.cpp
new file mode 100644
index 00000000000..cacc0c7063c
--- /dev/null
+++ b/intern/audaspace/SDL/AUD_SDLMixer.cpp
@@ -0,0 +1,83 @@
+/*
+ * $Id$
+ *
+ * ***** 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_SDLMixer.h"
+#include "AUD_SDLMixerFactory.h"
+
+#include <SDL.h>
+
+AUD_SDLMixer::AUD_SDLMixer()
+{
+	m_factory = NULL;
+}
+
+AUD_SDLMixer::~AUD_SDLMixer()
+{
+	if(m_factory)
+	{
+		delete m_factory; AUD_DELETE("factory")
+	}
+}
+
+AUD_IReader* AUD_SDLMixer::prepare(AUD_IReader* reader)
+{
+	m_factory->setReader(reader);
+	return m_factory->createReader();
+}
+
+void AUD_SDLMixer::setSpecs(AUD_Specs specs)
+{
+	m_samplesize = AUD_SAMPLE_SIZE(specs);
+	if(m_factory)
+	{
+		delete m_factory; AUD_DELETE("factory")
+	}
+	m_factory = new AUD_SDLMixerFactory(specs); AUD_NEW("factory")
+}
+
+void AUD_SDLMixer::add(sample_t* buffer, AUD_Specs specs, int length,
+					   float volume)
+{
+	AUD_SDLMixerBuffer buf;
+	buf.buffer = buffer;
+	buf.length = length;
+	buf.volume = volume;
+	m_buffers.push_back(buf);
+}
+
+void AUD_SDLMixer::superpose(sample_t* buffer, int length, float volume)
+{
+	AUD_SDLMixerBuffer buf;
+
+	while(!m_buffers.empty())
+	{
+		buf = m_buffers.front();
+		m_buffers.pop_front();
+		SDL_MixAudio((Uint8*)buffer,
+					 (Uint8*)buf.buffer,
+					 buf.length * m_samplesize,
+					 (int)(SDL_MIX_MAXVOLUME * volume * buf.volume));
+	}
+}