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engines/agos/midiparser_gmf.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 AGOS_MIDIPARSER_GMF_H
+#define AGOS_MIDIPARSER_GMF_H
+
+#include "audio/midiparser_smf.h"
+
+namespace AGOS {
+
+/**
+ * MIDI parser for the GMF format used by the DOS (and Acorn CD) versions of
+ * Simon The Sorcerer. GMF is basically SMF but with the following differences:
+ * - Different header
+ * - Tempo is determined by a header field
+ * - Just a single track with no track header
+ * - No end of track or other meta events
+ */
+class MidiParser_GMF : public MidiParser_SMF {
+public:
+	MidiParser_GMF(int8 source = -1, bool useDosTempos = false);
+
+	bool loadMusic(const byte *data, uint32 size) override;
+
+protected:
+	void parseNextEvent(EventInfo &info) override;
+
+	// The end position of each track, exclusive
+	// (i.e. 1 byte past the end of the data).
+	const byte *_tracksEndPos[MAXIMUM_TRACKS];
+
+	// True if the music tempos from the DOS version should be used; false if
+	// the tempos from the Windows version should be used.
+	bool _useDosTempos;
+};
+
+} // End of namespace AGOS
+
+#endif