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engines/sci/sound/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/>.
+ *
+ */
+
+/* Sound engine */
+#ifndef SCI_SOUND_AUDIO_H
+#define SCI_SOUND_AUDIO_H
+
+#include "sci/engine/vm_types.h"
+#include "audio/mixer.h"
+
+namespace Audio {
+class RewindableAudioStream;
+} // End of namespace Audio
+
+namespace Sci {
+
+enum AudioCommands {
+	kSciAudioWPlay = 1, /* Loads an audio stream */
+	kSciAudioPlay = 2, /* Plays an audio stream */
+	kSciAudioStop = 3, /* Stops an audio stream */
+	kSciAudioPause = 4, /* Pauses an audio stream */
+	kSciAudioResume = 5, /* Resumes an audio stream */
+	kSciAudioPosition = 6, /* Return current position in audio stream */
+	kSciAudioRate = 7, /* Return audio rate */
+	kSciAudioVolume = 8, /* Return audio volume */
+	kSciAudioLanguage = 9, /* Return audio language */
+	kSciAudioCD = 10 /* Plays SCI1.1 CD audio */
+};
+
+#define AUDIO_VOLUME_MAX 127
+
+class Resource;
+class ResourceId;
+class ResourceManager;
+class SegManager;
+
+class AudioPlayer {
+public:
+	AudioPlayer(ResourceManager *resMan);
+	~AudioPlayer();
+
+	void setAudioRate(uint16 rate) { _audioRate = rate; }
+	Audio::SoundHandle *getAudioHandle() { return &_audioHandle; }
+	Audio::RewindableAudioStream *getAudioStream(uint32 number, uint32 volume, int *sampleLen);
+	int getAudioPosition();
+	int startAudio(uint16 module, uint32 tuple);
+	int wPlayAudio(uint16 module, uint32 tuple);
+	void stopAudio();
+	void pauseAudio();
+	void resumeAudio();
+
+	void handleFanmadeSciAudio(reg_t sciAudioObject, SegManager *segMan);
+
+	int audioCdPlay(int track, int start, int duration);
+	void audioCdStop();
+	void audioCdUpdate();
+	int audioCdPosition();
+
+	void stopAllAudio();
+
+	void incrementPlayCounter();
+	uint16 getPlayCounter();
+
+private:
+	ResourceManager *_resMan;
+	uint16 _audioRate;
+	Audio::SoundHandle _audioHandle;
+	Audio::Mixer *_mixer;
+	uint32 _audioCdStart;
+	bool _wPlayFlag;
+	bool _initCD;
+	uint16 _playCounter;
+};
+
+} // End of namespace Sci
+
+#endif // SCI_SOUND_AUDIO_H