Initial commit

engines/hpl1/engine/impl/LowLevelSoundOpenAL.h

@@ -0,0 +1,91 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#ifndef HPL_LOWLEVELSOUND_OPENAL_H
+#define HPL_LOWLEVELSOUND_OPENAL_H
+
+#include "common/array.h"
+#include "hpl1/engine/sound/LowLevelSound.h"
+
+namespace Audio {
+
+class Mixer;
+
+}
+namespace hpl {
+
+class cOpenALSoundChannel;
+
+class cLowLevelSoundOpenAL : public iLowLevelSound {
+public:
+	cLowLevelSoundOpenAL();
+	~cLowLevelSoundOpenAL();
+
+	void GetSupportedFormats(tStringList &alstFormats);
+
+	iSoundData *LoadSoundData(const tString &asName, const tString &asFilePath,
+							  const tString &asType, bool abStream, bool abLoopStream);
+
+	void UpdateSound(float afTimeStep);
+
+	void SetListenerAttributes(const cVector3f &avPos, const cVector3f &avVel,
+							   const cVector3f &avForward, const cVector3f &avUp);
+	void SetListenerPosition(const cVector3f &avPos);
+
+	void SetSetRolloffFactor(float afFactor);
+
+	void SetListenerAttenuation(bool abEnabled);
+
+	void Init(bool abUseHardware, bool abForceGeneric, bool abUseEnvAudio, int alMaxChannels,
+			  int alStreamUpdateFreq, bool abUseThreading, bool abUseVoiceManagement,
+			  int alMaxMonoSourceHint, int alMaxStereoSourceHint,
+			  int alStreamingBufferSize, int alStreamingBufferCount, bool abEnableLowLevelLog,
+			  tString asDeviceName);
+
+	void SetVolume(float afVolume);
+
+	void SetEnvVolume(float afEnvVolume);
+
+	iSoundEnvironment *LoadSoundEnvironment(const tString &asFilePath);
+	void SetSoundEnvironment(iSoundEnvironment *apSoundEnv);
+	void FadeSoundEnvironment(iSoundEnvironment *apSourceSoundEnv, iSoundEnvironment *apDestSoundEnv, float afT);
+
+	bool playChannel(cOpenALSoundChannel *channel);
+	void closeChannel(cOpenALSoundChannel *channel);
+
+private:
+	static const int MAX_ACTIVE_CHANNELS = 32;
+	Common::Array<cOpenALSoundChannel *> _activeChannels;
+	Audio::Mixer *_mixer;
+	tString mvFormats[30];
+	bool mbInitialized;
+	bool mbNullEffectAttached;
+};
+
+} // namespace hpl
+
+#endif // HPL_LOWLEVELSOUND_OPENAL_H