egldisplay.h

Go to the documentation of this file.

/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2023 Xaver Hugl <xaver.hugl@gmail.com>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
#pragma once
 
#include "kwin_export.h"
 
#include <QByteArray>
#include <QHash>
#include <QList>
#include <QSize>
#include <epoxy/egl.h>
 
namespace KWin
{
 
struct DmaBufAttributes;
class GLTexture;
 
class KWIN_EXPORT EglDisplay
{
public:
    struct DrmFormatInfo
    {
        QList<uint64_t> allModifiers;
        QList<uint64_t> nonExternalOnlyModifiers;
        QList<uint64_t> externalOnlyModifiers;
    };
 
    EglDisplay(::EGLDisplay display, const QList<QByteArray> &extensions, bool owning = true);
    ~EglDisplay();
 
    QList<QByteArray> extensions() const;
    ::EGLDisplay handle() const;
    bool hasExtension(const QByteArray &name) const;
 
    QString renderNode() const;
 
    bool supportsBufferAge() const;
    bool supportsNativeFence() const;
 
    QHash<uint32_t, QList<uint64_t>> nonExternalOnlySupportedDrmFormats() const;
    QHash<uint32_t, DrmFormatInfo> allSupportedDrmFormats() const;
    bool isExternalOnly(uint32_t format, uint64_t modifier) const;
 
    EGLImageKHR importDmaBufAsImage(const DmaBufAttributes &dmabuf) const;
    EGLImageKHR importDmaBufAsImage(const DmaBufAttributes &dmabuf, int plane, int format, const QSize &size) const;
 
    static std::unique_ptr<EglDisplay> create(::EGLDisplay display, bool owning = true);
 
private:
    QHash<uint32_t, DrmFormatInfo> queryImportFormats() const;
 
    const ::EGLDisplay m_handle;
    const QList<QByteArray> m_extensions;
    const bool m_owning;
 
    const bool m_supportsBufferAge;
    const bool m_supportsNativeFence;
    const QHash<uint32_t, DrmFormatInfo> m_importFormats;
};
 
}