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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.
*
* $URL$
* $Id$
*
*/
#include "sci/sfx/sci_midi.h"
namespace Sci {
class MidiDriver_PCJr : public MidiDriver_Emulated {
public:
friend class MidiPlayer_PCJr;
enum {
kMaxChannels = 3
};
MidiDriver_PCJr(Audio::Mixer *mixer) : MidiDriver_Emulated(mixer) { }
~MidiDriver_PCJr() { }
// MidiDriver
int open() { return open(kMaxChannels); }
void close();
void send(uint32 b);
MidiChannel *allocateChannel() { return NULL; }
MidiChannel *getPercussionChannel() { return NULL; }
// AudioStream
bool isStereo() const { return false; }
int getRate() const { return _mixer->getOutputRate(); }
// MidiDriver_Emulated
void generateSamples(int16 *buf, int len);
int open(int channels);
private:
int _channels_nr;
int _global_volume; // Base volume
int _volumes[kMaxChannels];
int _notes[kMaxChannels]; // Current halftone, or 0 if off
int _freq_count[kMaxChannels];
int _channel_assigner;
int _channels_assigned;
int _chan_nrs[kMaxChannels];
};
class MidiPlayer_PCJr : public MidiPlayer {
public:
MidiPlayer_PCJr() { _driver = new MidiDriver_PCJr(g_system->getMixer()); }
int open(ResourceManager *resourceManager) { return static_cast<MidiDriver_PCJr *>(_driver)->open(getPolyphony()); }
int getPlayMask() const { return 0x10; }
int getPolyphony() const { return 3; }
bool hasRhythmChannel() const { return false; }
void setVolume(byte volume) { static_cast<MidiDriver_PCJr *>(_driver)->_global_volume = volume; }
};
class MidiPlayer_PCSpeaker : public MidiPlayer_PCJr {
public:
int getPlayMask() const { return 0x20; }
int getPolyphony() const { return 1; }
};
} // End of namespace Sci
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