1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
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* SPDX-FileCopyrightText: 2010 Fredrik Höglund <fredrik@kde.org>
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* SPDX-FileCopyrightText: 2014 Marco Martin <mart@kde.org>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef CONTRAST_H
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#define CONTRAST_H
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#include <kwineffects.h>
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#include <kwinglplatform.h>
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#include <kwinglutils.h>
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#include <QVector>
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#include <QVector2D>
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namespace KWaylandServer
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{
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class ContrastManagerInterface;
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}
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namespace KWin
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{
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class ContrastShader;
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class ContrastEffect : public KWin::Effect
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{
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Q_OBJECT
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public:
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ContrastEffect();
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~ContrastEffect() override;
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static bool supported();
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static bool enabledByDefault();
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static QMatrix4x4 colorMatrix(qreal contrast, qreal intensity, qreal saturation);
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void reconfigure(ReconfigureFlags flags) override;
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void prePaintScreen(ScreenPrePaintData &data, int time) override;
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void prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time) override;
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void drawWindow(EffectWindow *w, int mask, const QRegion ®ion, WindowPaintData &data) override;
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void paintEffectFrame(EffectFrame *frame, const QRegion ®ion, double opacity, double frameOpacity) override;
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bool provides(Feature feature) override;
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int requestedEffectChainPosition() const override {
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return 76;
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}
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bool eventFilter(QObject *watched, QEvent *event) override;
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public Q_SLOTS:
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void slotWindowAdded(KWin::EffectWindow *w);
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void slotWindowDeleted(KWin::EffectWindow *w);
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void slotPropertyNotify(KWin::EffectWindow *w, long atom);
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void slotScreenGeometryChanged();
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private:
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QRegion contrastRegion(const EffectWindow *w) const;
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bool shouldContrast(const EffectWindow *w, int mask, const WindowPaintData &data) const;
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void updateContrastRegion(EffectWindow *w);
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void doContrast(EffectWindow *w, const QRegion &shape, const QRect &screen, const float opacity, const QMatrix4x4 &screenProjection);
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void uploadRegion(QVector2D *&map, const QRegion ®ion);
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void uploadGeometry(GLVertexBuffer *vbo, const QRegion ®ion);
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private:
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ContrastShader *shader;
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long net_wm_contrast_region;
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QRegion m_paintedArea; // actually painted area which is greater than m_damagedArea
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QRegion m_currentContrast; // keeps track of the currently contrasted area of non-caching windows(from bottom to top)
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QHash< const EffectWindow*, QMatrix4x4> m_colorMatrices;
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QHash< const EffectWindow*, QMetaObject::Connection > m_contrastChangedConnections; // used only in Wayland to keep track of effect changed
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KWaylandServer::ContrastManagerInterface *m_contrastManager = nullptr;
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};
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inline
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bool ContrastEffect::provides(Effect::Feature feature)
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{
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if (feature == Contrast) {
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return true;
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}
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return KWin::Effect::provides(feature);
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}
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} // namespace KWin
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#endif
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