964c487d4f
The main motivation behind the split is to simplify client buffer code and allow adding new features easier, for example referencing the shm pool when a shm buffer is destroyed, or monitoring for readable linux dmabuf file descriptors, etc. Also, a referenced ClientBuffer cannot be destroyed, unlike the old BufferInterface.
87 lines
1.7 KiB
C++
87 lines
1.7 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2017 Roman Gilg <subdiff@gmail.com>
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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_DRM_BUFFER_GBM_H
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#define KWIN_DRM_BUFFER_GBM_H
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#include "drm_buffer.h"
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#include <QSharedPointer>
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struct gbm_bo;
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namespace KWaylandServer
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{
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class ClientBuffer;
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}
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namespace KWin
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{
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class GbmSurface;
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class GbmBuffer : public QObject
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{
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Q_OBJECT
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public:
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GbmBuffer(GbmSurface *surface, gbm_bo *bo);
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GbmBuffer(gbm_bo *buffer, KWaylandServer::ClientBuffer *clientBuffer);
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virtual ~GbmBuffer();
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gbm_bo* getBo() const {
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return m_bo;
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}
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void releaseBuffer();
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bool map(uint32_t flags);
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void *mappedData() const {
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return m_data;
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}
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uint32_t stride() const {
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return m_stride;
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}
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protected:
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GbmSurface *m_surface = nullptr;
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gbm_bo *m_bo = nullptr;
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KWaylandServer::ClientBuffer *m_clientBuffer = nullptr;
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void *m_data = nullptr;
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void *m_mapping = nullptr;
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uint32_t m_stride = 0;
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};
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class DrmGbmBuffer : public DrmBuffer, public GbmBuffer
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{
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public:
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DrmGbmBuffer(DrmGpu *gpu, GbmSurface *surface, gbm_bo *bo);
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DrmGbmBuffer(DrmGpu *gpu, gbm_bo *buffer, KWaylandServer::ClientBuffer *clientBuffer);
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~DrmGbmBuffer() override;
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bool needsModeChange(DrmBuffer *b) const override {
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if (DrmGbmBuffer *sb = dynamic_cast<DrmGbmBuffer*>(b)) {
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return hasBo() != sb->hasBo();
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} else {
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return true;
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}
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}
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bool hasBo() const {
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return m_bo != nullptr;
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}
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private:
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void initialize();
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};
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}
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#endif
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