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85 lines
2.4 KiB
85 lines
2.4 KiB
//
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// midikeyboard.h
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//
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// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
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// Copyright (C) 2022 The MiniDexed Team
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//
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// Original author of this class:
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// R. Stange <rsta2@o2online.de>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#ifndef _midikeyboard_h
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#define _midikeyboard_h
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#include "mididevice.h"
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#include "config.h"
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#include <circle/usb/usbmidi.h>
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#include <circle/device.h>
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#include <circle/string.h>
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#include <circle/types.h>
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#include <queue>
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#define USB_SYSEX_BUFFER_SIZE (MAX_DX7_SYSEX_LENGTH+128) // Allow a bit spare to handle unexpected SysEx messages
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class CMiniDexed;
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class CMIDIKeyboard : public CMIDIDevice
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{
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public:
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static const unsigned MaxInstances = 4;
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public:
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CMIDIKeyboard (CMiniDexed *pSynthesizer, CConfig *pConfig, CUserInterface *pUI, unsigned nInstance = 0);
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~CMIDIKeyboard (void);
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void Process (boolean bPlugAndPlayUpdated);
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void Send (const u8 *pMessage, size_t nLength, unsigned nCable = 0) override;
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private:
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static void MIDIPacketHandler0 (unsigned nCable, u8 *pPacket, unsigned nLength);
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static void MIDIPacketHandler1 (unsigned nCable, u8 *pPacket, unsigned nLength);
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static void MIDIPacketHandler2 (unsigned nCable, u8 *pPacket, unsigned nLength);
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static void MIDIPacketHandler3 (unsigned nCable, u8 *pPacket, unsigned nLength);
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static void DeviceRemovedHandler (CDevice *pDevice, void *pContext);
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void USBMIDIMessageHandler (u8 *pPacket, unsigned nLength, unsigned nCable);
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private:
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struct TSendQueueEntry
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{
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u8 *pMessage;
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size_t nLength;
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unsigned nCable;
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};
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uint8_t m_SysEx[USB_SYSEX_BUFFER_SIZE];
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unsigned m_nSysExIdx;
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private:
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unsigned m_nInstance;
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CString m_DeviceName;
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CUSBMIDIDevice * volatile m_pMIDIDevice;
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std::queue<TSendQueueEntry> m_SendQueue;
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static CMIDIKeyboard *s_pThis[MaxInstances];
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static TMIDIPacketHandler * const s_pMIDIPacketHandler[MaxInstances];
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};
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#endif
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