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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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef SCI_SFX_SOFTSEQ_MIDIDRIVER_H
+#define SCI_SFX_SOFTSEQ_MIDIDRIVER_H
+
+#include "sci/sci.h"
+#include "sound/mididrv.h"
+#include "sound/softsynth/emumidi.h"
+#include "common/error.h"
+
+namespace Sci {
+
+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 {
+protected:
+ MidiDriver *_driver;
+public:
+ int open() {
+ ResourceManager *resMan = ((SciEngine *)g_engine)->getResourceManager(); // 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); }
+ uint32 getBaseTempo() { return _driver->getBaseTempo(); }
+ virtual bool hasRhythmChannel() const = 0;
+ MidiChannel *allocateChannel() { return _driver->allocateChannel(); }
+ MidiChannel *getPercussionChannel() { return _driver->getPercussionChannel(); }
+ void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc) { _driver->setTimerCallback(timer_param, timer_proc); }
+
+ virtual int getPlayMask(SciVersion soundVersion) = 0;
+ virtual int getPolyphony() const = 0;
+
+ 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;
+ }
+
+ 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);
+ }
+ }
+};
+
+extern MidiPlayer *MidiPlayer_Adlib_create();
+extern MidiPlayer *MidiPlayer_Amiga_create();
+
+} // End of namespace Sci
+
+#endif // SCI_SFX_SOFTSEQ_MIDIDRIVER_H