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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QEGLCONVENIENCE_H
#define QEGLCONVENIENCE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qsurfaceformat.h>
#include <QtCore/qlist.h>
#include <QtCore/qsize.h>
#include <QtGui/private/qt_egl_p.h>
QT_BEGIN_NAMESPACE
Q_GUI_EXPORT QList<EGLint> q_createConfigAttributesFromFormat(const QSurfaceFormat &format);
Q_GUI_EXPORT bool q_reduceConfigAttributes(QList<EGLint> *configAttributes);
Q_GUI_EXPORT EGLConfig q_configFromGLFormat(EGLDisplay display,
const QSurfaceFormat &format,
bool highestPixelFormat = false,
int surfaceType = EGL_WINDOW_BIT);
Q_GUI_EXPORT QSurfaceFormat q_glFormatFromConfig(EGLDisplay display, const EGLConfig config,
const QSurfaceFormat &referenceFormat = {});
Q_GUI_EXPORT bool q_hasEglExtension(EGLDisplay display,const char* extensionName);
Q_GUI_EXPORT void q_printEglConfig(EGLDisplay display, EGLConfig config);
#ifdef Q_OS_UNIX
Q_GUI_EXPORT QSizeF q_physicalScreenSizeFromFb(int framebufferDevice,
const QSize &screenSize = {});
Q_GUI_EXPORT QSize q_screenSizeFromFb(int framebufferDevice);
Q_GUI_EXPORT int q_screenDepthFromFb(int framebufferDevice);
Q_GUI_EXPORT qreal q_refreshRateFromFb(int framebufferDevice);
#endif
class Q_GUI_EXPORT QEglConfigChooser
{
public:
QEglConfigChooser(EGLDisplay display);
virtual ~QEglConfigChooser();
EGLDisplay display() const { return m_display; }
void setSurfaceType(EGLint surfaceType) { m_surfaceType = surfaceType; }
EGLint surfaceType() const { return m_surfaceType; }
void setSurfaceFormat(const QSurfaceFormat &format) { m_format = format; }
QSurfaceFormat surfaceFormat() const { return m_format; }
void setIgnoreColorChannels(bool ignore) { m_ignore = ignore; }
bool ignoreColorChannels() const { return m_ignore; }
EGLConfig chooseConfig();
protected:
virtual bool filterConfig(EGLConfig config) const;
QSurfaceFormat m_format;
EGLDisplay m_display;
EGLint m_surfaceType;
bool m_ignore;
int m_confAttrRed;
int m_confAttrGreen;
int m_confAttrBlue;
int m_confAttrAlpha;
};
QT_END_NAMESPACE
#endif //QEGLCONVENIENCE_H
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