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engines/scumm/soundcd.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 SCUMM_SOUNDCD_H
+#define SCUMM_SOUNDCD_H
+
+#include "backends/audiocd/audiocd.h"
+#include "common/scummsys.h"
+#include "common/serializer.h"
+
+namespace Scumm {
+
+// The number of "ticks" (1/10th of a second) into the Overture that the
+// LucasFilm logo should appear. This corresponds to a timer value of 204.
+// The default value is selected to work well with the Ozawa recording.
+
+#define DEFAULT_LOOM_OVERTURE_TRANSITION 1160
+
+class ScummEngine;
+class SoundSE;
+
+class SoundCD {
+private:
+	ScummEngine *_vm;
+	Audio::Mixer *_mixer;
+	SoundSE *_soundSE;
+
+	Audio::SoundHandle *_fileBasedCDAudioHandle;
+	bool _hasFileBasedCDAudio = false;
+	AudioCDManager::Status _fileBasedCDStatus;
+
+	int _musicTimer = 0;
+
+	bool _useReplacementAudioTracks = false;
+	int _loomOvertureTransition = 0;
+	uint32 _replacementTrackStartTime = 0;
+
+public:
+	int16 _currentCDSound = 0;
+	uint32 _cdMusicTimerMod = 0;
+	uint32 _cdMusicTimer = 0;
+	bool _soundsPaused = false;
+
+	SoundCD(ScummEngine *parent, Audio::Mixer *mixer, SoundSE *soundSE, bool useReplacementAudioTracks);
+	~SoundCD();
+
+	bool triggerCDSound(int soundID);
+	void stopCDSound(int sound);
+	void stopAllCDSounds();
+	void pauseCDSounds(bool pause);
+
+	bool useReplacementAudio() const { return _useReplacementAudioTracks; }
+	void updateMusicTimer();
+	int getMusicTimer() const { return _musicTimer; }
+	int getCDMusicTimer() const { return _cdMusicTimer; }
+
+	void startCDTimer();
+	void stopCDTimer();
+
+	int playCDTrackFromSoundID(int soundId);
+	void playCDTrack(int track, int numLoops, int startFrame, int duration);
+	void stopCD();
+	int pollCD() const;
+	void updateCD();
+	AudioCDManager::Status getCDStatus();
+	int getCurrentCDSound() const { return _currentCDSound; }
+
+	int restoreAfterLoad();
+	void restoreCDAudioAfterLoad(AudioCDManager::Status &info);
+
+	bool isRolandLoom() const;
+
+private:
+	int getReplacementAudioTrack(int soundID);
+	void playCDTrackInternal(int track, int numLoops, int startFrame, int duration);
+	int getCDTrackIdFromSoundId(int soundId, int &loops, int &start, int &end);
+};
+
+} // End of namespace Scumm
+
+#endif