137 lines
4 KiB
C++
137 lines
4 KiB
C++
/*
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SPDX-FileCopyrightText: 2018 Fredrik Höglund <fredrik@kde.org>
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SPDX-FileCopyrightText: 2019 Roman Gilg <subdiff@gmail.com>
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SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-FileCopyrightText: 2021 Xaver Hugl <xaver.hugl@gmail.com>
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SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
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*/
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#pragma once
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#include "clientbuffer.h"
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#include "clientbufferintegration.h"
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#include "dmabufattributes.h"
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#include <QHash>
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#include <QSet>
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#include <sys/types.h>
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namespace KWaylandServer
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{
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class LinuxDmaBufV1ClientBufferPrivate;
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class LinuxDmaBufV1ClientBufferIntegrationPrivate;
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class LinuxDmaBufV1FeedbackPrivate;
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/**
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* The LinuxDmaBufV1ClientBuffer class represents a linux dma-buf client buffer.
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*
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* The LinuxDmaBufV1ClientBuffer can be used even after the underlying wl_buffer object
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* is destroyed by the client.
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*/
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class KWIN_EXPORT LinuxDmaBufV1ClientBuffer : public ClientBuffer
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{
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Q_OBJECT
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Q_DECLARE_PRIVATE(LinuxDmaBufV1ClientBuffer)
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public:
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LinuxDmaBufV1ClientBuffer(const KWin::DmaBufAttributes &attrs, quint32 flags);
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~LinuxDmaBufV1ClientBuffer() override;
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quint32 format() const;
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quint32 flags() const;
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KWin::DmaBufAttributes attributes() const;
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QSize size() const override;
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bool hasAlphaChannel() const override;
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Origin origin() const override;
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private:
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void initialize(wl_resource *resource);
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friend class LinuxDmaBufParamsV1;
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};
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class KWIN_EXPORT LinuxDmaBufV1Feedback : public QObject
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{
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Q_OBJECT
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public:
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~LinuxDmaBufV1Feedback() override;
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enum class TrancheFlag : uint32_t {
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Scanout = 1,
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};
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Q_DECLARE_FLAGS(TrancheFlags, TrancheFlag)
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struct Tranche
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{
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dev_t device;
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TrancheFlags flags;
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QHash<uint32_t, QVector<uint64_t>> formatTable;
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};
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/**
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* Sets the list of tranches for this feedback object, with lower indices
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* indicating a higher priority / a more optimal configuration.
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* The main device does not need to be included
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*/
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void setTranches(const QVector<Tranche> &tranches);
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private:
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LinuxDmaBufV1Feedback(LinuxDmaBufV1ClientBufferIntegrationPrivate *integration);
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friend class LinuxDmaBufV1ClientBufferIntegrationPrivate;
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friend class LinuxDmaBufV1FeedbackPrivate;
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std::unique_ptr<LinuxDmaBufV1FeedbackPrivate> d;
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};
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/**
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* The LinuxDmaBufV1ClientBufferIntegration class provides support for linux dma-buf buffers.
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*/
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class KWIN_EXPORT LinuxDmaBufV1ClientBufferIntegration : public ClientBufferIntegration
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{
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Q_OBJECT
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public:
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explicit LinuxDmaBufV1ClientBufferIntegration(Display *display);
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~LinuxDmaBufV1ClientBufferIntegration() override;
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/**
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* The Iface class provides an interface from the LinuxDmabufInterface into the compositor
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*/
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class RendererInterface
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{
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public:
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virtual ~RendererInterface() = default;
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/**
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* Imports a linux-dmabuf buffer into the compositor.
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*
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* The parent LinuxDmabufUnstableV1Interface class takes ownership of returned
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* buffer objects.
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*
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* In return the returned buffer takes ownership of the file descriptor for each
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* plane.
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*
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* Note that it is the responsibility of the caller to close the file descriptors
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* when the import fails.
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*
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* @return The imported buffer on success, and nullptr otherwise.
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*/
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virtual LinuxDmaBufV1ClientBuffer *importBuffer(const KWin::DmaBufAttributes &attrs, quint32 flags) = 0;
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};
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RendererInterface *rendererInterface() const;
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/**
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* Sets the compositor implementation for the dmabuf interface.
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*
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* The ownership is not transferred by this call.
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*/
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void setRendererInterface(RendererInterface *rendererInterface);
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void setSupportedFormatsWithModifiers(const QVector<LinuxDmaBufV1Feedback::Tranche> &tranches);
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private:
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friend class LinuxDmaBufV1ClientBufferIntegrationPrivate;
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std::unique_ptr<LinuxDmaBufV1ClientBufferIntegrationPrivate> d;
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};
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} // namespace KWaylandServer
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