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engines/got/musicparser.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 GOT_MUSICPARSER_H
+#define GOT_MUSICPARSER_H
+
+#include "got/musicdriver_adlib.h"
+
+#include "common/scummsys.h"
+
+namespace Got {
+
+class MusicParser_Got {
+public:
+	MusicParser_Got();
+	~MusicParser_Got();
+
+	bool startPlaying();
+	void pausePlaying();
+	void resumePlaying();
+	void stopPlaying();
+	bool isPlaying();
+
+	void setMusicDriver(MusicDriver_Got *driver);
+
+	bool loadMusic(byte *data, uint32 size);
+	void unloadMusic();
+
+	void onTimer();
+	static void timerCallback(void *data);
+
+protected:
+	void allNotesOff();
+	void sendToDriver(uint16 b);
+	void sendToDriver(byte reg, byte value);
+	void resetTracking();
+
+	bool _pause;
+	bool _abortParse;
+	// Number of ticks to the next event to process.
+	uint16 _currentDelta;
+
+	MusicDriver_Got *_driver;
+
+	// Points to start of current track data, or nullptr if no track is loaded.
+	byte *_track;
+	// The length of the track data.
+	uint32 _trackLength;
+	// The current play position in the track data, or nullptr if the parser is
+	// not playing.
+	byte *_playPos;
+	// The offset from the start of _track where playback should restart if the
+	// track has reached the end. -1 if there is no (valid) loop point defined.
+	int32 _loopStart;
+};
+
+} // namespace Got
+
+#endif