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engines/sludge/sound.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/>.
+ *
+ */
+
+#ifndef SLUDGE_SOUND_H
+#define SLUDGE_SOUND_H
+
+#include "common/list.h"
+
+#include "audio/mixer.h"
+
+namespace Common {
+class SeekableReadStream;
+class WriteStream;
+}
+
+//#include "sludge/variable.h"
+
+namespace Sludge {
+
+struct StackHandler;
+
+// Sound list stuff
+struct SoundList{
+	int sound;
+	struct SoundList*next;
+	struct SoundList*prev;
+	int cacheIndex;
+	int vol;
+};
+
+class SoundManager {
+public:
+	SoundManager();
+	virtual ~SoundManager();
+
+	// Sound list
+	void playSoundList(SoundList*s);
+	void handleSoundLists(); // to produce the same effects as end of stream call back functions
+
+	// GENERAL...
+	void init();
+	bool initSoundStuff();
+	void killSoundStuff();
+
+	// MUSIC...
+	bool playMOD(int, int, int);
+	void stopMOD(int);
+	void setMusicVolume(int a, int v);
+	void setDefaultMusicVolume(int v);
+
+	// SAMPLES...
+	int cacheSound(int f);
+	bool startSound(int, bool = false);
+	void huntKillSound(int a);
+	void huntKillFreeSound(int filenum);
+	void setSoundVolume(int a, int v);
+	void setDefaultSoundVolume(int v);
+	void setSoundLoop(int a, int s, int e);
+	bool stillPlayingSound(int ch);
+	bool getSoundCacheStack(StackHandler *sH);
+	int findInSoundCache(int a);
+
+	// Load & save
+	void loadSounds(Common::SeekableReadStream *stream);
+	void saveSounds(Common::WriteStream *stream);
+
+	uint getSoundSource(int index);
+
+private:
+	const static int MAX_SAMPLES;
+	const static int MAX_MODS;
+
+	struct SoundThing {
+		Audio::SoundHandle handle;
+		int fileLoaded, vol;	//Used for wav/ogg sounds only. (sound saving/loading)
+		bool looping;			//Used for wav/ogg sounds only. (sound saving/loading)
+		bool inSoundList;		//Used for wav/ogg sounds only
+	};
+	typedef Common::List<SoundList *> SoundListHandles;
+
+	// there's possibility that several sound list played at the same time
+	SoundListHandles _soundListHandles;
+
+	bool _soundOK;
+	bool _silenceIKillYou;
+	bool _isHandlingSoundList;
+
+	SoundThing *_soundCache;
+	SoundThing *_modCache;
+
+	int _defVol;
+	int _defSoundVol;
+	float _modLoudness;
+
+	int _emptySoundSlot;
+
+	void freeSound(int a);
+	bool forceRemoveSound();
+	bool deleteSoundFromList(SoundList*&s);
+	int findEmptySoundSlot();
+	int makeSoundAudioStream(int f, Audio::AudioStream *&audiostream, bool loopy);
+};
+
+} // End of namespace Sludge
+
+#endif