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112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
//
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// mt32synth.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 _mt32synth_h
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#define _mt32synth_h
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#include <circle/types.h>
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#include <mt32emu/mt32emu.h>
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#include "rommanager.h"
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#include "synth/mt32romset.h"
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#include "synth/synthbase.h"
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#include "utility.h"
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class CMT32Synth : public CSynthBase, public MT32Emu::ReportHandler
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{
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public:
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#define ENUM_RESAMPLERQUALITY(ENUM) \
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ENUM(None, none) \
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ENUM(Fastest, fastest) \
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ENUM(Fast, fast) \
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ENUM(Good, good) \
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ENUM(Best, best)
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#define ENUM_MIDICHANNELS(ENUM) \
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ENUM(Standard, standard) \
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ENUM(Alternate, alternate)
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CONFIG_ENUM(TResamplerQuality, ENUM_RESAMPLERQUALITY);
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CONFIG_ENUM(TMIDIChannels, ENUM_MIDICHANNELS);
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CMT32Synth(unsigned nSampleRate, float nGain, float nReverbGain, TResamplerQuality ResamplerQuality);
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virtual ~CMT32Synth();
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// CSynthBase
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virtual bool Initialize() override;
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virtual void HandleMIDIShortMessage(u32 nMessage) override;
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virtual void HandleMIDISysExMessage(const u8* pData, size_t nSize) override;
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virtual bool IsActive() override { return m_pSynth->isActive(); }
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virtual void AllSoundOff() override;
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virtual void SetMasterVolume(u8 nVolume) override;
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virtual size_t Render(s16* pBuffer, size_t nFrames) override;
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virtual size_t Render(float* pBuffer, size_t nFrames) override;
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virtual void ReportStatus() const override;
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virtual void UpdateLCD(CLCD& LCD, unsigned int nTicks) override;
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void SetMIDIChannels(TMIDIChannels Channels);
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void SetReversedStereo(bool bEnabled) { m_pSynth->setReversedStereoEnabled(bEnabled); }
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bool SwitchROMSet(TMT32ROMSet ROMSet);
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bool NextROMSet();
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TMT32ROMSet GetROMSet() const;
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const char* GetControlROMName() const;
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CROMManager& GetROMManager() { return m_ROMManager; }
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u8 GetMasterVolume() const;
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private:
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static constexpr size_t MT32ChannelCount = 9;
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// N characters plus null terminator
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static constexpr size_t LCDTextBufferSize = 20 + 1;
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void GetPartLevels(unsigned int nTicks, float PartLevels[9], float PartPeaks[9]);
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// MT32Emu::ReportHandler
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virtual bool onMIDIQueueOverflow() override;
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virtual void printDebug(const char* pFmt, va_list pList) override;
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virtual void showLCDMessage(const char* pMessage) override;
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virtual void onDeviceReset() override;
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static const u8 StandardMIDIChannelsSysEx[];
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static const u8 AlternateMIDIChannelsSysEx[];
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MT32Emu::Synth* m_pSynth;
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float m_nGain;
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float m_nReverbGain;
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TResamplerQuality m_ResamplerQuality;
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MT32Emu::SampleRateConverter* m_pSampleRateConverter;
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CROMManager m_ROMManager;
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TMT32ROMSet m_CurrentROMSet;
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const MT32Emu::ROMImage* m_pControlROMImage;
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const MT32Emu::ROMImage* m_pPCMROMImage;
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// LCD state
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char m_LCDTextBuffer[LCDTextBufferSize];
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};
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#endif
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