90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2010 Fredrik Höglund <fredrik@kde.org>
|
|
SPDX-FileCopyrightText: 2014 Marco Martin <mart@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef CONTRAST_H
|
|
#define CONTRAST_H
|
|
|
|
#include <kwineffects.h>
|
|
#include <kwinglplatform.h>
|
|
#include <kwinglutils.h>
|
|
|
|
#include <QVector>
|
|
#include <QVector2D>
|
|
|
|
namespace KWaylandServer
|
|
{
|
|
class ContrastManagerInterface;
|
|
}
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
class ContrastShader;
|
|
|
|
class ContrastEffect : public KWin::Effect
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
ContrastEffect();
|
|
~ContrastEffect() override;
|
|
|
|
static bool supported();
|
|
static bool enabledByDefault();
|
|
|
|
static QMatrix4x4 colorMatrix(qreal contrast, qreal intensity, qreal saturation);
|
|
void reconfigure(ReconfigureFlags flags) override;
|
|
void prePaintScreen(ScreenPrePaintData &data, int time) override;
|
|
void prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time) override;
|
|
void drawWindow(EffectWindow *w, int mask, const QRegion ®ion, WindowPaintData &data) override;
|
|
void paintEffectFrame(EffectFrame *frame, const QRegion ®ion, double opacity, double frameOpacity) override;
|
|
|
|
bool provides(Feature feature) override;
|
|
|
|
int requestedEffectChainPosition() const override {
|
|
return 76;
|
|
}
|
|
|
|
bool eventFilter(QObject *watched, QEvent *event) override;
|
|
|
|
public Q_SLOTS:
|
|
void slotWindowAdded(KWin::EffectWindow *w);
|
|
void slotWindowDeleted(KWin::EffectWindow *w);
|
|
void slotPropertyNotify(KWin::EffectWindow *w, long atom);
|
|
void slotScreenGeometryChanged();
|
|
|
|
private:
|
|
QRegion contrastRegion(const EffectWindow *w) const;
|
|
bool shouldContrast(const EffectWindow *w, int mask, const WindowPaintData &data) const;
|
|
void updateContrastRegion(EffectWindow *w);
|
|
void doContrast(EffectWindow *w, const QRegion &shape, const QRect &screen, const float opacity, const QMatrix4x4 &screenProjection);
|
|
void uploadRegion(QVector2D *&map, const QRegion ®ion);
|
|
void uploadGeometry(GLVertexBuffer *vbo, const QRegion ®ion);
|
|
|
|
private:
|
|
ContrastShader *shader;
|
|
long net_wm_contrast_region;
|
|
QRegion m_paintedArea; // actually painted area which is greater than m_damagedArea
|
|
QRegion m_currentContrast; // keeps track of the currently contrasted area of non-caching windows(from bottom to top)
|
|
QHash< const EffectWindow*, QMatrix4x4> m_colorMatrices;
|
|
QHash< const EffectWindow*, QMetaObject::Connection > m_contrastChangedConnections; // used only in Wayland to keep track of effect changed
|
|
KWaylandServer::ContrastManagerInterface *m_contrastManager = nullptr;
|
|
};
|
|
|
|
inline
|
|
bool ContrastEffect::provides(Effect::Feature feature)
|
|
{
|
|
if (feature == Contrast) {
|
|
return true;
|
|
}
|
|
return KWin::Effect::provides(feature);
|
|
}
|
|
|
|
|
|
} // namespace KWin
|
|
|
|
#endif
|
|
|