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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 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.
*
*/
#ifndef SCI_SFX_SOFTSEQ_MIDIDRIVER_H
#define SCI_SFX_SOFTSEQ_MIDIDRIVER_H
#include "sci/sci.h"
#include "sci/util.h"
#include "audio/mididrv.h"
#include "common/error.h"
namespace Sci {
// Music patches in SCI games:
// ===========================
// 1.pat - MT-32 driver music patch
// 2.pat - Yamaha FB01 driver music patch
// 3.pat - Adlib driver music patch
// 4.pat - Casio MT-540 (in earlier SCI0 games)
// 4.pat - GM driver music patch (in later games that support GM)
// 7.pat (newer) / patch.200 (older) - Mac driver music patch / Casio CSM-1
// 9.pat (newer) / patch.005 (older) - Amiga driver music patch
// 98.pat - Unknown, found in later SCI1.1 games. A MIDI format patch
// 101.pat - CMS/PCjr driver music patch.
// Only later PCjr drivers use this patch, earlier ones don't use a patch
// bank.001 - older SCI0 Amiga instruments
class ResourceManager;
enum {
MIDI_CHANNELS = 16,
MIDI_PROP_MASTER_VOLUME = 0
};
#define MIDI_RHYTHM_CHANNEL 9
/* Special SCI sound stuff */
#define SCI_MIDI_TIME_EXPANSION_PREFIX 0xF8
#define SCI_MIDI_TIME_EXPANSION_LENGTH 240
#define SCI_MIDI_EOT 0xFC
#define SCI_MIDI_SET_SIGNAL 0xCF
#define SCI_MIDI_SET_POLYPHONY 0x4B
#define SCI_MIDI_RESET_ON_SUSPEND 0x4C
#define SCI_MIDI_CHANNEL_MUTE 0x4E
#define SCI_MIDI_SET_REVERB 0x50
#define SCI_MIDI_HOLD 0x52
#define SCI_MIDI_CUMULATIVE_CUE 0x60
#define SCI_MIDI_CHANNEL_SOUND_OFF 0x78 /* all-sound-off for Bn */
#define SCI_MIDI_CHANNEL_NOTES_OFF 0x7B /* all-notes-off for Bn */
#define SCI_MIDI_SET_SIGNAL_LOOP 0x7F
/* If this is the parameter of 0xCF, the loop point is set here */
#define SCI_MIDI_CONTROLLER(status) ((status & 0xF0) == 0xB0)
class MidiPlayer : public MidiDriver_BASE {
protected:
MidiDriver *_driver;
int8 _reverb;
public:
MidiPlayer(SciVersion version) : _driver(0), _reverb(-1), _version(version) { }
int open() {
ResourceManager *resMan = g_sci->getResMan(); // HACK
return open(resMan);
}
virtual int open(ResourceManager *resMan) { return _driver->open(); }
virtual void close() { _driver->close(); }
virtual void send(uint32 b) { _driver->send(b); }
virtual uint32 getBaseTempo() { return _driver->getBaseTempo(); }
virtual bool hasRhythmChannel() const = 0;
virtual void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc) { _driver->setTimerCallback(timer_param, timer_proc); }
virtual byte getPlayId() const = 0;
virtual int getPolyphony() const = 0;
virtual int getFirstChannel() const { return 0; }
virtual int getLastChannel() const { return 15; }
virtual void setVolume(byte volume) {
if(_driver)
_driver->property(MIDI_PROP_MASTER_VOLUME, volume);
}
virtual int getVolume() {
return _driver ? _driver->property(MIDI_PROP_MASTER_VOLUME, 0xffff) : 0;
}
// Returns the current reverb, or -1 when no reverb is active
int8 getReverb() const { return _reverb; }
// Sets the current reverb, used mainly in MT-32
virtual void setReverb(int8 reverb) { _reverb = reverb; }
virtual void playSwitch(bool play) {
if (!play) {
// Send "All Sound Off" on all channels
for (int i = 0; i < MIDI_CHANNELS; ++i)
_driver->send(0xb0 + i, SCI_MIDI_CHANNEL_NOTES_OFF, 0);
}
}
// Prepares the driver for the playback of SCI0 midi tracks.
// The main purpose is the assignment of voices ("hardware" sound channels) to the 16 midi parts.
// This is basically the predecessor of the 0x4B midi event.
// Some drivers also do other things in here.
virtual void initTrack(SciSpan<const byte> &) {}
// There are several sound drivers which weren' part of the
// original game setup and came in the form of aftermarket patches.
// This method allows each driver to report missing patch or other
// required files which will then be displayed in an error dialog box.
// The method returns only a single string (instead of a string list),
// because no more than two files will be required.
virtual const char *reportMissingFiles() { return 0; }
protected:
SciVersion _version;
};
extern MidiPlayer *MidiPlayer_AdLib_create(SciVersion version);
extern MidiPlayer *MidiPlayer_AmigaMac_create(SciVersion version, Common::Platform platform);
extern MidiPlayer *MidiPlayer_PCJr_create(SciVersion version);
extern MidiPlayer *MidiPlayer_PCSpeaker_create(SciVersion version);
extern MidiPlayer *MidiPlayer_CMS_create(SciVersion version);
extern MidiPlayer *MidiPlayer_Midi_create(SciVersion version);
extern MidiPlayer *MidiPlayer_Fb01_create(SciVersion version);
extern MidiPlayer *MidiPlayer_FMTowns_create(SciVersion version);
extern MidiPlayer *MidiPlayer_PC9801_create(SciVersion version);
} // End of namespace Sci
#endif // SCI_SFX_SOFTSEQ_MIDIDRIVER_H
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