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engines/alcachofa/sounds.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 ALCACHOFA_SOUNDS_H
+#define ALCACHOFA_SOUNDS_H
+
+#include "alcachofa/scheduler.h"
+#include "audio/mixer.h"
+#include "audio/audiostream.h"
+
+namespace Alcachofa {
+
+class Character;
+using ::Audio::SoundHandle;
+
+class Sounds {
+public:
+	Sounds();
+	~Sounds();
+
+	void update();
+	SoundHandle playVoice(const Common::String &fileName, byte volume = Audio::Mixer::kMaxChannelVolume);
+	SoundHandle playSFX(const Common::String &fileName, byte volume = Audio::Mixer::kMaxChannelVolume);
+	void stopAll();
+	void stopVoice();
+	void pauseAll(bool paused);
+	void fadeOut(SoundHandle id, uint32 duration);
+	void fadeOutVoiceAndSFX(uint32 duration);
+	bool isAlive(SoundHandle id);
+	void setVolume(SoundHandle id, byte volume);
+	void setAppropriateVolume(SoundHandle id,
+		MainCharacterKind processCharacter,
+		Character *speakingCharacter);
+	bool isNoisy(SoundHandle id, float windowSize, float minDifferences); ///< used for lip-sync
+
+	void startMusic(int musicId);
+	void queueMusic(int musicId);
+	void fadeMusic(uint32 duration = 500);
+	void setMusicToRoom(int roomMusicId);
+	Task *waitForMusicToEnd(Process &processd);
+	inline bool isMusicPlaying() const { return _isMusicPlaying; }
+	inline int musicID() const { return _nextMusicID; }
+	inline FakeSemaphore &musicSemaphore() { return _musicSemaphore; }
+
+private:
+	struct Playback {
+		void fadeOut(uint32 duration);
+
+		Audio::SoundHandle _handle;
+		Audio::Mixer::SoundType _type = Audio::Mixer::SoundType::kPlainSoundType;
+		uint32 _fadeStart = 0,
+			_fadeDuration = 0;
+		int _inputRate = 0;
+		Common::Array<int16> _samples; ///< might not be filled, only voice samples are preloaded for lip-sync
+	};
+	Playback *getPlaybackById(SoundHandle id);
+	SoundHandle playSoundInternal(const char *fileName, byte volume, Audio::Mixer::SoundType type);
+
+	Common::Array<Playback> _playbacks;
+	Audio::Mixer *_mixer;
+
+	SoundHandle _musicSoundID = {}; // we use another soundID to reuse fading
+	bool _isMusicPlaying = false;
+	int _nextMusicID = -1;
+	FakeSemaphore _musicSemaphore;
+};
+
+struct PlaySoundTask final : public Task {
+	PlaySoundTask(Process &process, SoundHandle soundHandle);
+	PlaySoundTask(Process &process, Common::Serializer &s);
+	TaskReturn run() override;
+	void debugPrint() override;
+	const char *taskName() const override;
+private:
+	SoundHandle _soundHandle;
+};
+
+struct WaitForMusicTask final : public Task {
+	WaitForMusicTask(Process &process);
+	WaitForMusicTask(Process &process, Common::Serializer &s);
+	TaskReturn run() override;
+	void debugPrint() override;
+	const char *taskName() const override;
+private:
+	FakeLock _lock;
+};
+
+}
+
+#endif // ALCACHOFA_SOUNDS_H