/* ScummVM - Scumm Interpreter * Copyright (C) 2001/2002 The ScummVM project * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * $Header$ * */ #ifndef INCLUDED_MIDISTREAMER #define INCLUDED_MIDISTREAMER class MidiStreamer; #include "mididrv.h" class MidiStreamer : public MidiDriver { public: /* called whenever the midi driver is in streaming mode, * and more midi commands need to be generated * return 0 to tell the mididriver that the end of stream was reached */ typedef int StreamCallback (void *param, MidiEvent * ev, int num); private: MidiDriver *_target; StreamCallback *_stream_proc; void *_stream_param; bool _isOpen; bool _paused; MidiEvent _events [64]; int _event_count; int _event_index; long _driver_tempo; long _tempo; uint16 _ticks_per_beat; long _delay; static void timer_thread (void *param); void on_timer(); public: MidiStreamer (MidiDriver *target); int open(); void close(); void send(uint32 b) { if (_isOpen) _target->send (b); } uint32 property(int prop, uint32 param); void setPitchBendRange (byte channel, uint range) { _target->setPitchBendRange (channel, range); } void pause(bool p) { _paused = p; } void set_stream_callback(void *param, StreamCallback *sc); void setTimerCallback (void *timer_param, void (*timer_proc) (void *)) { } uint32 getBaseTempo (void) { return _target->getBaseTempo(); } MidiChannel *allocateChannel() { return NULL; } MidiChannel *getPercussionChannel() { return NULL; } }; #endif