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/* Copyright (c) 2014-2016, 2019 Stanislaw Halik <sthalik@misaki.pl>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#pragma once
#include "compat/qt-dpi.hpp"
#include "compat/math.hpp"
#include "export.hpp"
#include <vector>
#include <atomic>
#include <tuple>
#include <QWidget>
#include <QImage>
#include <QTimer>
#include <QMutex>
struct OTR_VIDEO_EXPORT video_widget : QWidget, public screen_dpi_mixin<video_widget>
{
video_widget(QWidget* parent = nullptr);
void update_image(const QImage& image);
std::tuple<int, int> preview_size() const;
void resizeEvent(QResizeEvent*) override;
void paintEvent(QPaintEvent*) override;
void draw_image();
protected:
mutable QMutex mtx { QMutex::NonRecursive };
QImage texture;
std::vector<unsigned char> vec;
bool fresh() const;
void set_fresh(bool x);
void set_image(const unsigned char* src, int width, int height, int stride, QImage::Format fmt);
private:
void init_image_nolock();
QTimer timer;
std::atomic<QSize> size_ = QSize(320, 240);
std::atomic<bool> fresh_ { false };
static_assert(decltype(fresh_)::is_always_lock_free);
};
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