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MiniDexed/src/midikeyboard.h

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