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engines/toon/audio.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, MojoTouch has
+ * exclusively licensed this code on March 23th, 2024, to be used in
+ * closed-source products.
+ * Therefore, any contributions (commits) to it will also be dual-licensed.
+ *
+ */
+
+#ifndef TOON_AUDIO_H
+#define TOON_AUDIO_H
+
+#include "audio/audiostream.h"
+#include "audio/mixer.h"
+#include "toon/toon.h"
+
+namespace Toon {
+
+// used for music/voice/everything
+class AudioManager;
+class AudioStreamInstance : public Audio::AudioStream {
+
+public:
+	AudioStreamInstance(AudioManager *man, Audio::Mixer *mixer, Common::SeekableReadStream *stream, bool looping = false, bool deleteFileStreamAtEnd = false);
+	~AudioStreamInstance() override;
+	void play(bool fade = false, Audio::Mixer::SoundType soundType = Audio::Mixer::kMusicSoundType);
+	void stop(bool fade = false);
+
+	bool isPlaying() {
+		return !_stopped;
+	}
+	bool isLooping() {
+		return _looping;
+	}
+	bool isFading() {
+		return _fadingIn || _fadingOut;
+	}
+
+	int32 getPlayedSampleCount() {
+		return _playedSamples;
+	}
+
+	void setVolume(int32 volume);
+protected:
+	int readBuffer(int16 *buffer, const int numSamples) override;
+	bool isStereo() const override {
+		return false;
+	}
+	int getRate() const override {
+		return 22100;
+	}
+	bool endOfData() const override {
+		return _stopped;
+	}
+	void handleFade(int32 numSamples);
+	void stopNow();
+
+	bool readPacket();
+	void decodeADPCM(uint8 *comp, int16 *dest, int32 packetSize);
+
+	Common::SeekableReadStream *_file;
+	bool _fadingIn;
+	bool _fadingOut;
+	int32 _fadeTime;
+	uint8 *_compBuffer;
+	int16 *_buffer;
+	int32 _bufferSize;
+	int32 _bufferMaxSize;
+	int32 _bufferOffset;
+	int32 _compBufferSize;
+	Audio::SoundHandle _handle;
+	Audio::Mixer::SoundType _soundType;
+	Audio::Mixer *_mixer;
+	int32 _lastSample;
+	int32 _lastStepIndex;
+	bool _stopped;
+	AudioManager *_man;
+	int32 _totalSize;
+	int32 _currentReadSize;
+	bool _looping;
+	int32 _volume;
+	int32 _musicAttenuation;
+	bool _deleteFileStream;
+	int32 _playedSamples;
+};
+
+class AudioStreamPackage {
+
+public:
+	AudioStreamPackage(ToonEngine *vm);
+	~AudioStreamPackage();
+
+	bool loadAudioPackage(const Common::Path &indexFile, const Common::Path &streamFile);
+	void getInfo(int32 id, int32 *offset, int32 *size);
+	Common::SeekableReadStream *getStream(int32 id, bool ownMemory = false);
+protected:
+	Common::SeekableReadStream *_file;
+	uint32 *_indexBuffer;
+	ToonEngine *_vm;
+};
+
+struct AudioAmbientSFX {
+	int32 _id;
+	int32 _volume;
+	int32 _lastTimer;
+	int32 _delay;
+	int32 _mode;
+	int32 _channel;
+	bool _enabled;
+};
+
+class AudioManager {
+public:
+	void removeInstance(AudioStreamInstance *inst); // called by destructor
+
+	AudioManager(ToonEngine *vm, Audio::Mixer *mixer);
+	~AudioManager();
+
+	bool voiceStillPlaying();
+
+	int playMusic(const Common::String &dir, const Common::String &music);
+	void playVoice(int32 id, bool genericVoice);
+	int32 playSFX(int32 id, int volume, bool genericSFX);
+	void stopCurrentVoice();
+	void stopAllSfxs();
+	void setMusicVolume(uint8 volume);
+	void stopMusicChannel(int channelId, bool fade);
+	void stopMusic(bool fade = true);
+	void muteVoice(bool mute);
+	void muteMusic(bool mute);
+	void muteSfx(bool mute);
+	bool isVoiceMuted() const { return _voiceMuted; }
+	bool isMusicMuted() const { return _musicMuted; }
+	bool isSfxMuted() const { return _sfxMuted; }
+
+	void startAmbientSFX(int32 id, int32 delay, int32 mode, int32 volume);
+	void killAmbientSFX(int32 id);
+	void killAllAmbientSFX();
+	void updateAmbientSFX();
+	void setAmbientSFXVolume(int32 id, int volume);
+
+	void closeAudioPack(int32 id);
+	bool loadAudioPack(int32 id, const Common::Path &indexFile, const Common::Path &packFile);
+
+	AudioStreamInstance *_channels[16];  // 0-1 : music
+	                                     // 2 : voice
+	                                     // 3-15 : SFX
+
+	AudioStreamPackage *_audioPacks[4];  // 0 : generic streams
+	                                     // 1 : local streams
+	                                     // 2 : generic SFX
+	                                     // 3 : local SFX
+
+	int _currentMusicChannel;
+	Common::String _currentMusicName;
+	ToonEngine *_vm;
+	Audio::Mixer *_mixer;
+
+protected:
+	bool _voiceMuted;
+	bool _musicMuted;
+	bool _sfxMuted;
+
+	AudioAmbientSFX _ambientSFXs[4];
+};
+
+} // End of namespace Toon
+
+#endif