98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
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/*
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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: 2016 Roman Gilg <subdiff@gmail.com>
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SPDX-FileCopyrightText: 2021 Xaver Hugl <xaver.hugl@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#pragma once
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#include <xf86drmMode.h>
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#include <QVector>
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#include <QMap>
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#include <QByteArray>
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namespace KWin
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{
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class DrmObject;
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class DrmProperty
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{
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public:
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DrmProperty(DrmObject *obj, drmModePropertyRes *prop, uint64_t val, const QVector<QByteArray> &enumNames);
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virtual ~DrmProperty();
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void initEnumMap(drmModePropertyRes *prop);
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QVector<QByteArray> enumNames() const;
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bool hasEnum(uint64_t value) const;
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bool hasAllEnums() const;
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template <typename T>
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T enumForValue(uint64_t value) const {
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return static_cast<T>(m_enumMap[value]);
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}
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template <typename T>
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bool setEnum(T index) {
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if (hasEnum(static_cast<uint64_t>(index))) {
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setPending(m_enumMap[static_cast<uint32_t>(index)]);
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return true;
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}
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return false;
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}
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uint32_t propId() const;
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const QByteArray &name() const;
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bool isImmutable() const;
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bool isLegacy() const;
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/**
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* Makes this property be ignored by DrmObject::atomicPopulate
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*/
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void setLegacy();
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void setPending(uint64_t value);
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uint64_t pending() const;
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bool setPendingBlob(void *blob, size_t length);
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drmModePropertyBlobRes *pendingBlob() const;
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void setCurrent(uint64_t value);
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uint64_t current() const;
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void setCurrentBlob(drmModePropertyBlobRes *blob);
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drmModePropertyBlobRes *currentBlob() const;
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void commit();
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void commitPending();
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void rollbackPending();
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bool needsCommit() const;
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bool setPropertyLegacy(uint64_t value);
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private:
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uint32_t m_propId = 0;
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QByteArray m_propName;
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// the value that will be m_next after the property has been committed
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// has not necessarily been tested to work
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uint64_t m_pending = 0;
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drmModePropertyBlobRes *m_pendingBlob = nullptr;
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// the value that will be m_current after the next atomic commit
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// and has been tested to work
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uint64_t m_next = 0;
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drmModePropertyBlobRes *m_nextBlob = nullptr;
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// the value currently set for or by the kernel
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uint64_t m_current = 0;
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drmModePropertyBlobRes *m_currentBlob = nullptr;
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QMap<uint32_t, uint64_t> m_enumMap;
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QVector<QByteArray> m_enumNames;
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const bool m_immutable;
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bool m_legacy = false;
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const DrmObject *m_obj;
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};
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}
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