29 lines
768 B
C++
29 lines
768 B
C++
|
|
#include "NoteQueue.h"
|
|
#include <iostream>
|
|
|
|
// add event to noteQueue, called by MidiController or keyboardController
|
|
bool NoteQueue::push(const NoteEvent& event) {
|
|
size_t head = head_.load(std::memory_order_relaxed);
|
|
size_t next = (head + 1) % SIZE;
|
|
|
|
if(next == tail_.load(std::memory_order_relaxed)) return false; // full
|
|
|
|
buffer_[head] = event;
|
|
head_.store(next, std::memory_order_relaxed);
|
|
|
|
return true;
|
|
}
|
|
|
|
// take event from noteQueue, called by synth
|
|
bool NoteQueue::pop(NoteEvent& event) {
|
|
size_t tail = tail_.load(std::memory_order_relaxed);
|
|
|
|
if(tail == head_.load(std::memory_order_acquire)) return false; // empty
|
|
|
|
event = buffer_[tail];
|
|
tail_.store((tail + 1) % SIZE, std::memory_order_release);
|
|
|
|
return true;
|
|
}
|