DummyInstrument.h 1.8 KB

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  1. /*
  2. * DummyInstrument.h - instrument used as fallback if an instrument couldn't
  3. * be loaded
  4. *
  5. * Copyright (c) 2005-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  6. *
  7. * This file is part of LMMS - https://lmms.io
  8. *
  9. * This program is free software; you can redistribute it and/or
  10. * modify it under the terms of the GNU General Public
  11. * License as published by the Free Software Foundation; either
  12. * version 2 of the License, or (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17. * General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public
  20. * License along with this program (see COPYING); if not, write to the
  21. * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22. * Boston, MA 02110-1301 USA.
  23. *
  24. */
  25. #ifndef DUMMY_INSTRUMENT_H
  26. #define DUMMY_INSTRUMENT_H
  27. #include "Instrument.h"
  28. #include "InstrumentView.h"
  29. #include "Engine.h"
  30. #include <string.h>
  31. #include "AudioEngine.h"
  32. class DummyInstrument : public Instrument
  33. {
  34. public:
  35. DummyInstrument( InstrumentTrack * _instrument_track ) :
  36. Instrument( _instrument_track, nullptr )
  37. {
  38. }
  39. virtual ~DummyInstrument()
  40. {
  41. }
  42. void playNote( NotePlayHandle *, sampleFrame * buffer ) override
  43. {
  44. memset( buffer, 0, sizeof( sampleFrame ) *
  45. Engine::audioEngine()->framesPerPeriod() );
  46. }
  47. void saveSettings( QDomDocument &, QDomElement & ) override
  48. {
  49. }
  50. void loadSettings( const QDomElement & ) override
  51. {
  52. }
  53. QString nodeName() const override
  54. {
  55. return "dummyinstrument";
  56. }
  57. PluginView * instantiateView( QWidget * _parent ) override
  58. {
  59. return new InstrumentViewFixedSize( this, _parent );
  60. }
  61. } ;
  62. #endif