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engines/twine/audio/music.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 TWINE_MUSIC_H
+#define TWINE_MUSIC_H
+
+#include "audio/midiplayer.h"
+#include "audio/mixer.h"
+#include "common/scummsys.h"
+
+namespace TwinE {
+
+class TwinEEngine;
+
+class TwinEMidiPlayer : public Audio::MidiPlayer {
+private:
+	TwinEEngine *_engine;
+public:
+	TwinEMidiPlayer(TwinEEngine *engine);
+	void play(byte *buf, int size, bool loop);
+};
+
+class Music {
+private:
+	TwinEEngine *_engine;
+	TwinEMidiPlayer _midiPlayer;
+
+	void fadeMusicMidi(uint32 time = 1);
+
+	/** Auxiliar midi pointer to  */
+	uint8 *midiPtr = nullptr;
+	Audio::SoundHandle _midiHandle;
+	/** Track number of the current playing music */
+	int32 numXmi = -1;
+	int32 currentMusicCD = -1;
+	// int32 endMusicCD = -1;
+	const bool _flagVoiceCD = false;
+public:
+	// TODO: implement the handling
+	int32 _nextMusic = -1;       // lba2: NextMusic
+	int32 _nextMusicTimer;       // lba2: NextMusicTimer
+	bool _stopLastMusic = false; // lba2: StopLastMusic
+private:
+	/** Stop CD music */
+	void stopMusicCD();
+	bool playMidi(int32 midiIdx);
+	int32 getLengthTrackCDR(int track) const;
+	bool playTrackCDR(int32 track);
+public:
+	Music(TwinEEngine *engine);
+
+	/**
+	 * Music volume
+	 * @param current volume number
+	 */
+	void musicVolume(int32 volume);
+
+	/**
+	 * Play CD music
+	 * @param track track number to play
+	 */
+	bool playCdTrack(int32 track);
+	/**
+	 * Generic play music, according with settings it plays CD or high quality sounds instead
+	 * @param track track number to play
+	 */
+	bool playMusic(int32 track);
+	/**
+	 * Play MIDI music
+	 * @param midiIdx music index under mini_mi_win.hqr
+	 * @note valid indices for lba1 are [1-32]
+	 */
+	bool playMidiFile(int32 midiIdx);
+
+	void playAllMusic(int track);
+
+	/** Stop MIDI music */
+	void stopMusicMidi();
+
+	/** Initialize CD-Rom */
+	bool initCdrom();
+
+	/** Stop MIDI and Track music */
+	void stopMusic();
+
+	bool isMidiPlaying() const;
+	int32 getMusicCD();
+};
+
+} // namespace TwinE
+
+#endif