1
Fork 0
cardinal/include/midi.hpp

121 lines
2.7 KiB
C++

/*
* DISTRHO Cardinal Plugin
* Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com>
*
* 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 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.
*
* For a full copy of the GNU General Public License see the LICENSE file.
*/
/**
* This file is an edited version of VCVRack's midi.hpp
* Copyright (C) 2016-2021 VCV.
*
* 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.
*/
#pragma once
#include "choc/choc_SmallVector.h"
namespace rack {
/** Abstraction for all MIDI drivers in Rack */
namespace midi {
struct Message {
/** Initialized to 3 empty bytes. */
choc::SmallVector<uint8_t, 3> bytes;
/** The Engine frame timestamp of the Message.
For output messages, the frame when the message was generated.
For input messages, the frame when it is intended to be processed.
-1 for undefined, to be sent or processed immediately.
*/
int64_t frame = -1;
Message() {
bytes.resize(3);
}
int getSize() const {
return bytes.size();
}
void setSize(int size) {
bytes.resize(size);
}
uint8_t getChannel() const {
if (bytes.size() < 1)
return 0;
return bytes[0] & 0xf;
}
void setChannel(uint8_t channel) {
if (bytes.size() < 1)
return;
bytes[0] = (bytes[0] & 0xf0) | (channel & 0xf);
}
uint8_t getStatus() const {
if (bytes.size() < 1)
return 0;
return bytes[0] >> 4;
}
void setStatus(uint8_t status) {
if (bytes.size() < 1)
return;
bytes[0] = (bytes[0] & 0xf) | (status << 4);
}
uint8_t getNote() const {
if (bytes.size() < 2)
return 0;
return bytes[1];
}
void setNote(uint8_t note) {
if (bytes.size() < 2)
return;
bytes[1] = note & 0x7f;
}
uint8_t getValue() const {
if (bytes.size() < 3)
return 0;
return bytes[2];
}
void setValue(uint8_t value) {
if (bytes.size() < 3)
return;
bytes[2] = value & 0x7f;
}
std::string toString() const;
int64_t getFrame() const {
return frame;
}
void setFrame(int64_t frame) {
this->frame = frame;
}
};
/* NOTE all the other MIDI stuff (drivers, ports etc) is purposefully missing here, unwanted in Cardinal
*/
struct Port;
} // namespace midi
} // namespace rack