Initial commit

engines/agos/drivers/accolade/mt32.h

@@ -0,0 +1,66 @@
+/* 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_DRIVERS_ACCOLADE_MT32_H
+#define AGOS_DRIVERS_ACCOLADE_MT32_H
+
+#include "audio/mt32gm.h"
+
+namespace AGOS {
+
+class MidiDriver_Accolade_MT32 : public MidiDriver_MT32GM {
+protected:
+	static const uint8 SFX_PROGRAM_BASE = 0x75;
+	static const uint8 SYSEX_INSTRUMENT_ASSIGNMENT[7];
+
+public:
+	MidiDriver_Accolade_MT32();
+
+	int open(MidiDriver *driver, bool nativeMT32) override;
+	using MidiDriver_MT32GM::send;
+	void send(int8 source, uint32 b) override;
+
+	int8 mapSourceChannel(uint8 source, uint8 dataChannel) override;
+	void deinitSource(uint8 source) override;
+
+	// Read the specified data from INSTR.DAT or MUSIC.DRV.
+	void readDriverData(byte *driverData, uint16 driverDataSize, bool isMusicDrv);
+
+	// Loads the specified instrument for the specified instrument source.
+	void loadSfxInstrument(uint8 source, byte *instrumentData);
+	// Changes the channel assigned to the specified SFX source to the SFX
+	// program number.
+	void changeSfxInstrument(uint8 source);
+
+protected:
+	// simple mapping between MIDI channel and MT32 channel
+	byte _channelRemapping[16];
+	// simple mapping between MIDI instruments and MT32 instruments
+	byte _instrumentRemapping[128];
+
+	// Indicates if a MIDI channel is locked by an SFX source and unavailable
+	// for music.
+	bool _channelLocks[MIDI_CHANNEL_COUNT];
+};
+
+} // End of namespace AGOS
+
+#endif