AGOS: Fix Accolade MIDI Driver Compilation Breakage

These were broken by the last PR merge which included a cpp file in a
way which will not build reliably. This splits the Accolade MIDI driver
structure definitions into headers allowing these to be included
instead.

Also, minor cleanup by removal of unused header includes.

1 files changed, 121 insertions, 0 deletions

diff --git a/engines/agos/drivers/accolade/adlib.h b/engines/agos/drivers/accolade/adlib.h
new file mode 100644
index 0000000000..c044d2e05a
--- /dev/null
+++ b/engines/agos/drivers/accolade/adlib.h
@@ -0,0 +1,121 @@
+/* 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "agos/drivers/accolade/mididriver.h"
+
+#include "audio/fmopl.h"
+#include "audio/mididrv.h"
+
+namespace AGOS {
+
+#define AGOS_ADLIB_VOICES_COUNT 11
+
+struct InstrumentEntry {
+	byte reg20op1; // Amplitude Modulation / Vibrato / Envelope Generator Type / Keyboard Scaling Rate / Modulator Frequency Multiple
+	byte reg40op1; // Level Key Scaling / Total Level
+	byte reg60op1; // Attack Rate / Decay Rate
+	byte reg80op1; // Sustain Level / Release Rate
+	byte reg20op2; // Amplitude Modulation / Vibrato / Envelope Generator Type / Keyboard Scaling Rate / Modulator Frequency Multiple
+	byte reg40op2; // Level Key Scaling / Total Level
+	byte reg60op2; // Attack Rate / Decay Rate
+	byte reg80op2; // Sustain Level / Release Rate
+	byte regC0;    // Feedback / Algorithm, bit 0 - set -> both operators in use
+};
+
+class MidiDriver_Accolade_AdLib : public MidiDriver {
+public:
+	MidiDriver_Accolade_AdLib();
+	virtual ~MidiDriver_Accolade_AdLib();
+
+	// MidiDriver
+	int open();
+	void close();
+	void send(uint32 b);
+	MidiChannel *allocateChannel() { return NULL; }
+	MidiChannel *getPercussionChannel() { return NULL; }
+
+	bool isOpen() const { return _isOpen; }
+	uint32 getBaseTempo() { return 1000000 / OPL::OPL::kDefaultCallbackFrequency; }
+
+	void setVolume(byte volume);
+	virtual uint32 property(int prop, uint32 param);
+
+	bool setupInstruments(byte *instrumentData, uint16 instrumentDataSize, bool useMusicDrvFile);
+
+	void setTimerCallback(void *timerParam, Common::TimerManager::TimerProc timerProc);
+
+private:
+	bool _musicDrvMode;
+
+	// from INSTR.DAT/MUSIC.DRV - simple mapping between MIDI channel and MT32 channel
+	byte _channelMapping[AGOS_MIDI_CHANNEL_COUNT];
+	// from INSTR.DAT/MUSIC.DRV - simple mapping between MIDI instruments and MT32 instruments
+	byte _instrumentMapping[AGOS_MIDI_INSTRUMENT_COUNT];
+	// from INSTR.DAT/MUSIC.DRV - volume adjustment per instrument
+	signed char _instrumentVolumeAdjust[AGOS_MIDI_INSTRUMENT_COUNT];
+	// simple mapping between MIDI key notes and MT32 key notes
+	byte _percussionKeyNoteMapping[AGOS_MIDI_KEYNOTE_COUNT];
+
+	// from INSTR.DAT/MUSIC.DRV - adlib instrument data
+	InstrumentEntry *_instrumentTable;
+	byte            _instrumentCount;
+
+	struct ChannelEntry {
+		const  InstrumentEntry *currentInstrumentPtr;
+		byte   currentNote;
+		byte   currentA0hReg;
+		byte   currentB0hReg;
+		int16  volumeAdjust;
+		byte   velocity;
+
+		ChannelEntry() : currentInstrumentPtr(NULL), currentNote(0),
+						currentA0hReg(0), currentB0hReg(0), volumeAdjust(0), velocity(0) { }
+	};
+
+	byte _percussionReg;
+
+	OPL::OPL *_opl;
+	int _masterVolume;
+
+	Common::TimerManager::TimerProc _adlibTimerProc;
+	void *_adlibTimerParam;
+
+	bool _isOpen;
+
+	// stores information about all FM voice channels
+	ChannelEntry _channels[AGOS_ADLIB_VOICES_COUNT];
+
+	void onTimer();
+
+	void resetAdLib();
+	void resetAdLibOperatorRegisters(byte baseRegister, byte value);
+	void resetAdLibFMVoiceChannelRegisters(byte baseRegister, byte value);
+
+	void programChange(byte FMvoiceChannel, byte mappedInstrumentNr, byte MIDIinstrumentNr);
+	void programChangeSetInstrument(byte FMvoiceChannel, byte mappedInstrumentNr, byte MIDIinstrumentNr);
+	void setRegister(int reg, int value);
+	void noteOn(byte FMvoiceChannel, byte note, byte velocity);
+	void noteOnSetVolume(byte FMvoiceChannel, byte operatorReg, byte adjustedVelocity);
+	void noteOff(byte FMvoiceChannel, byte note, bool dontCheckNote);
+};
+
+} // End of namespace AGOS