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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2020, Linaro
 *
 * viewfinder_GL.h - OpenGL Viewfinder for rendering by OpenGL shader
 *
 */
#ifndef __VIEWFINDER_GL_H__
#define __VIEWFINDER_GL_H__

#include <array>
#include <memory>

#include <QImage>
#include <QMutex>
#include <QOpenGLBuffer>
#include <QOpenGLFunctions>
#include <QOpenGLShader>
#include <QOpenGLShaderProgram>
#include <QOpenGLTexture>
#include <QOpenGLWidget>
#include <QSize>

#include <libcamera/buffer.h>
#include <libcamera/formats.h>

#include "viewfinder.h"

class ViewFinderGL : public QOpenGLWidget,
		     public ViewFinder,
		     protected QOpenGLFunctions
{
	Q_OBJECT

public:
	ViewFinderGL(QWidget *parent = nullptr);
	~ViewFinderGL();

	const QList<libcamera::PixelFormat> &nativeFormats() const override;

	int setFormat(const libcamera::PixelFormat &format, const QSize &size) override;
	void render(libcamera::FrameBuffer *buffer, MappedBuffer *map) override;
	void stop() override;

	QImage getCurrentImage() override;