sound/mpu401.h

   1 /* ScummVM - Graphic Adventure Engine
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   5  * file distributed with this source distribution.
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  10  * of the License, or (at your option) any later version.
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  12  * This program is distributed in the hope that it will be useful,
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  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16
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  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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  25
  26 #ifndef SOUND_MPU401_H
  27 #define SOUND_MPU401_H
  28
  29 #include "sound/mididrv.h"
  30
  31 ////////////////////////////////////////
  32 //
  33 // Common MPU401 implementation methods
  34 //
  35 ////////////////////////////////////////
  36
  37 class MidiDriver_MPU401;
  38
  39 class MidiChannel_MPU401 : public MidiChannel {
  40
  41 private:
  42         MidiDriver *_owner;
  43         bool _allocated;
  44         byte _channel;
  45
  46 public:
  47         MidiDriver *device();
  48         byte getNumber() { return _channel; }
  49         void release() { _allocated = false; }
  50
  51         void send(uint32 b);
  52
  53         // Regular messages
  54         void noteOff(byte note);
  55         void noteOn(byte note, byte velocity);
  56         void programChange(byte program);
  57         void pitchBend(int16 bend);
  58
  59         // Control Change messages
  60         void controlChange(byte control, byte value);
  61         void pitchBendFactor(byte value);
  62
  63         // SysEx messages
  64         void sysEx_customInstrument(uint32 type, const byte *instr);
  65
  66         // Only to be called by the owner
  67         void init(MidiDriver *owner, byte channel);
  68         bool allocate();
  69 };
  70
  71
  72
  73 class MidiDriver_MPU401 : public MidiDriver {
  74 private:
  75         MidiChannel_MPU401 _midi_channels[16];
  76         Common::TimerManager::TimerProc _timer_proc;
  77         uint16 _channel_mask;
  78
  79 public:
  80         MidiDriver_MPU401();
  81
  82         virtual void close();
  83         void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc);
  84         uint32 getBaseTempo(void) { return 10000; }
  85         uint32 property(int prop, uint32 param);
  86
  87         MidiChannel *allocateChannel();
  88         MidiChannel *getPercussionChannel() { return &_midi_channels[9]; }
  89 };
  90
  91
  92 #endif