// Copyright (2019-2023) Paul Scherrer Institute

#include "PreviewCounter.h"

PreviewCounter::PreviewCounter(int64_t in_stride) : stride(in_stride) {}

bool PreviewCounter::GeneratePreview(int64_t image_number) {
    std::unique_lock<std::mutex> ul(m);
    if (stride == 0)
        return false;
    int64_t curr_part = image_number / stride;
    if (curr_part > last_part) {
        last_part = curr_part;
        return true;
    }
    return false;
}