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audio/midiparser_hmp.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 AUDIO_MIDIPARSER_HMP_H
+#define AUDIO_MIDIPARSER_HMP_H
+
+#include "audio/midiparser_smf.h"
+
+/**
+ * MIDI parser for the HMI SOS format HMP.
+ * 
+ * Implementation is incomplete. Currently only the track chunks are read and
+ * played back. Not implented yet: device track mapping, branching, callbacks, etc.
+ */
+class MidiParser_HMP : public MidiParser_SMF {
+protected:
+	enum class HmpVersion {
+		VERSION_1,
+		VERSION_013195
+	};
+
+	static const char HMP_HEADER[];
+	static const char HMP_HEADER_VERSION_1[];
+	static const char HMP_HEADER_VERSION_013195[];
+
+	uint32 readDelta(const byte *&data) override;
+
+	HmpVersion determineVersion(const byte *pos);
+
+public:
+	MidiParser_HMP(int8 source = -1);
+
+	bool loadMusic(const byte *data, uint32 size) override;
+
+	int32 determineDataSize(Common::SeekableReadStream *stream) override;
+
+protected:
+	HmpVersion _version;
+	uint32 _branchOffset;
+	// Total track length in seconds
+	uint32 _songLength;
+	uint32 _channelPriorities[16];
+	uint32 _deviceTrackMappings[32][5];
+	uint8 _restoreControllers[128];
+	uint32 _callbackPointer;
+	uint32 _callbackSegment;
+};
+
+#endif