drm_buffer.h

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/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
    SPDX-FileCopyrightText: 2022 Xaver Hugl <xaver.hugl@gmail.com>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
#pragma once
 
#include "core/graphicsbuffer.h"
#include "utils/filedescriptor.h"
 
#include <chrono>
 
namespace KWin
{
 
class DrmGpu;
class DrmFramebuffer;
 
class DrmFramebuffer
{
public:
    DrmFramebuffer(DrmGpu *gpu, uint32_t fbId, GraphicsBuffer *buffer, FileDescriptor &&readFence);
    ~DrmFramebuffer();
 
    uint32_t framebufferId() const;
    GraphicsBuffer *buffer() const;
 
    void releaseBuffer();
    bool isReadable();
 
    const FileDescriptor &syncFd() const;
    void setDeadline(std::chrono::steady_clock::time_point deadline);
 
protected:
    const uint32_t m_framebufferId;
    DrmGpu *const m_gpu;
    GraphicsBufferRef m_bufferRef;
    bool m_readable = false;
    FileDescriptor m_syncFd;
};
 
}