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64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
//
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// synthbase.h
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//
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// mt32-pi - A baremetal MIDI synthesizer for Raspberry Pi
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// Copyright (C) 2020-2023 Dale Whinham <daleyo@gmail.com>
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//
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// This file is part of mt32-pi.
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//
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// mt32-pi is free software: you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the Free Software
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// Foundation, either version 3 of the License, or (at your option) any later
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// version.
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//
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// mt32-pi is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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// details.
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//
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// You should have received a copy of the GNU General Public License along with
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// mt32-pi. If not, see <http://www.gnu.org/licenses/>.
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//
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#ifndef _synthbase_h
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#define _synthbase_h
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#include <circle/spinlock.h>
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#include <circle/types.h>
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#include "lcd/lcd.h"
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#include "lcd/ui.h"
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#include "midimonitor.h"
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class CSynthBase
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{
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public:
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CSynthBase(unsigned int nSampleRate)
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: m_Lock(TASK_LEVEL),
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m_nSampleRate(nSampleRate),
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m_pUI(nullptr)
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{
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}
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virtual ~CSynthBase() = default;
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virtual bool Initialize() = 0;
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virtual void HandleMIDIShortMessage(u32 nMessage) { m_MIDIMonitor.OnShortMessage(nMessage); };
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virtual void HandleMIDISysExMessage(const u8* pData, size_t nSize) = 0;
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virtual bool IsActive() = 0;
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virtual void AllSoundOff() { m_MIDIMonitor.AllNotesOff(); };
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virtual void SetMasterVolume(u8 nVolume) = 0;
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virtual size_t Render(s16* pOutBuffer, size_t nFrames) = 0;
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virtual size_t Render(float* pOutBuffer, size_t nFrames) = 0;
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virtual void ReportStatus() const = 0;
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virtual void UpdateLCD(CLCD& LCD, unsigned int nTicks) = 0;
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void SetUserInterface(CUserInterface* pUI) { m_pUI = pUI; }
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CSpinLock m_Lock;
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unsigned int m_nSampleRate;
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CMIDIMonitor m_MIDIMonitor;
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CUserInterface* m_pUI;
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};
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#endif
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