/*
* Klang – a node+text-based synthesizer library
*
* This file is part of the *wellen* library (https://github.com/dennisppaul/wellen).
* Copyright (c) 2022 Dennis P Paul.
*
* This library 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, version 3.
*
* This library 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/>.
*/
/**
* [ NODE_KERNEL_BLOCK ]
* +---------------------+
* | |
* IN00--| SIGNAL SIGNAL |--OUT00
* | |
* +---------------------+
*
* @description(
* abstract node that allows the easy creation of new signal block processing nodesby
* overriding the `kernel` method.
* )
*/
#ifndef NodeKernelBlock_hpp
#define NodeKernelBlock_hpp
#include "KlangNode.hpp"
namespace klang {
class NodeKernelBlock : public Node {
public:
static const CHANNEL_ID NUM_CH_IN = 1;
static const CHANNEL_ID NUM_CH_OUT = 1;
bool connect(Connection* pConnection, CHANNEL_ID pInChannel) {
if (pInChannel == CH_IN_SIGNAL) {
mConnection_CH_IN_SIGNAL = pConnection;
return true;
}
return false;
}
bool disconnect(CHANNEL_ID pInChannel) {
if (pInChannel == CH_IN_SIGNAL) {
mConnection_CH_IN_SIGNAL = nullptr;
return true;
}
return false;
}
void update(CHANNEL_ID pChannel, float* pAudioBlock) {
if (is_not_updated()) {
if (mConnection_CH_IN_SIGNAL != nullptr) {
mConnection_CH_IN_SIGNAL->update(pAudioBlock);
}
flag_updated();
}
if (pChannel == CH_OUT_SIGNAL) {
kernel(pAudioBlock);
}
}
virtual void set_command(KLANG_CMD_TYPE pCommand, KLANG_CMD_TYPE* pPayLoad) {}
protected:
/* override kernel method to implement custom kernels. */
virtual void kernel(float* s) = 0;
private:
Connection* mConnection_CH_IN_SIGNAL = nullptr;
};
} // namespace klang
#endif /* NodeKernelBlock_hpp */