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engines/gob/sound/bgatmosphere.h

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+/* 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/>.
+ *
+ *
+ * This file is dual-licensed.
+ * In addition to the GPLv3 license mentioned above, this code is also
+ * licensed under LGPL 2.1. See LICENSES/COPYING.LGPL file for the
+ * full text of the license.
+ *
+ */
+
+#ifndef GOB_SOUND_BGATMOSPHERE_H
+#define GOB_SOUND_BGATMOSPHERE_H
+
+#include "common/array.h"
+#include "common/mutex.h"
+#include "common/random.h"
+
+#include "gob/sound/sound.h"
+#include "gob/sound/soundmixer.h"
+
+namespace Audio {
+class Mixer;
+}
+
+namespace Gob {
+
+class SoundDesc;
+
+class BackgroundAtmosphere : private SoundMixer {
+public:
+	BackgroundAtmosphere(Audio::Mixer &mixer);
+	~BackgroundAtmosphere() override;
+
+	void playBA();
+	void stopBA();
+
+	void setPlayMode(Sound::BackgroundPlayMode mode);
+
+	void queueSample(SoundDesc &sndDesc);
+	void queueClear();
+
+	void setShadable(bool shadable);
+	void shade();
+	void unshade();
+
+private:
+	Sound::BackgroundPlayMode _playMode;
+
+	Common::Array<SoundDesc *> _queue;
+	int _queuePos;
+	bool _shaded;
+	bool _shadable;
+
+	Common::Mutex _mutex;
+
+	Common::RandomSource _rnd;
+
+	void checkEndSample() override;
+	void getNextQueuePos();
+};
+
+} // End of namespace Gob
+
+#endif // GOB_SOUND_BGATMOSPHERE_H