149 lines
4.6 KiB
C++
149 lines
4.6 KiB
C++
/*
|
|
* Copyright © 2010 Fredrik Höglund <fredrik@kde.org>
|
|
* Copyright © 2018 Alex Nemeth <alex.nemeth329@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. if not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef BLUR_H
|
|
#define BLUR_H
|
|
|
|
#include <kwineffects.h>
|
|
#include <kwinglplatform.h>
|
|
#include <kwinglutils.h>
|
|
|
|
#include <QVector>
|
|
#include <QVector2D>
|
|
#include <QStack>
|
|
|
|
namespace KWayland
|
|
{
|
|
namespace Server
|
|
{
|
|
class BlurManagerInterface;
|
|
}
|
|
}
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
static const int borderSize = 5;
|
|
|
|
class BlurShader;
|
|
|
|
class BlurEffect : public KWin::Effect
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
BlurEffect();
|
|
~BlurEffect();
|
|
|
|
static bool supported();
|
|
static bool enabledByDefault();
|
|
|
|
void reconfigure(ReconfigureFlags flags);
|
|
void prePaintScreen(ScreenPrePaintData &data, int time);
|
|
void prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time);
|
|
void drawWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data);
|
|
void paintEffectFrame(EffectFrame *frame, QRegion region, double opacity, double frameOpacity);
|
|
|
|
virtual bool provides(Feature feature);
|
|
|
|
int requestedEffectChainPosition() const override {
|
|
return 75;
|
|
}
|
|
|
|
public Q_SLOTS:
|
|
void slotWindowAdded(KWin::EffectWindow *w);
|
|
void slotWindowDeleted(KWin::EffectWindow *w);
|
|
void slotPropertyNotify(KWin::EffectWindow *w, long atom);
|
|
void slotScreenGeometryChanged();
|
|
|
|
private:
|
|
QRect expand(const QRect &rect) const;
|
|
QRegion expand(const QRegion ®ion) const;
|
|
bool renderTargetsValid() const;
|
|
void deleteFBOs();
|
|
void initBlurStrengthValues();
|
|
void updateTexture();
|
|
QRegion blurRegion(const EffectWindow *w) const;
|
|
bool shouldBlur(const EffectWindow *w, int mask, const WindowPaintData &data) const;
|
|
void updateBlurRegion(EffectWindow *w) const;
|
|
void doBlur(const QRegion &shape, const QRect &screen, const float opacity, const QMatrix4x4 &screenProjection, bool isDock, QRect windowRect);
|
|
void uploadRegion(QVector2D *&map, const QRegion ®ion, const int downSampleIterations);
|
|
void uploadGeometry(GLVertexBuffer *vbo, const QRegion &blurRegion, const QRegion &windowRegion);
|
|
void generateNoiseTexture();
|
|
|
|
void upscaleRenderToScreen(GLVertexBuffer *vbo, int vboStart, int blurRectCount, QMatrix4x4 screenProjection, QPoint windowPosition);
|
|
void downSampleTexture(GLVertexBuffer *vbo, int blurRectCount);
|
|
void upSampleTexture(GLVertexBuffer *vbo, int blurRectCount);
|
|
void copyScreenSampleTexture(GLVertexBuffer *vbo, int blurRectCount, QRegion blurShape, QSize screenSize, QMatrix4x4 screenProjection);
|
|
|
|
private:
|
|
BlurShader *m_shader;
|
|
QVector <GLRenderTarget*> m_renderTargets;
|
|
QVector <GLTexture> m_renderTextures;
|
|
QStack <GLRenderTarget*> m_renderTargetStack;
|
|
|
|
GLTexture m_noiseTexture;
|
|
|
|
bool m_renderTargetsValid;
|
|
long net_wm_blur_region;
|
|
QRegion m_damagedArea; // keeps track of the area which has been damaged (from bottom to top)
|
|
QRegion m_paintedArea; // actually painted area which is greater than m_damagedArea
|
|
QRegion m_currentBlur; // keeps track of the currently blured area of the windows(from bottom to top)
|
|
|
|
int m_downSampleIterations; // number of times the texture will be downsized to half size
|
|
int m_offset;
|
|
int m_expandSize;
|
|
int m_noiseStrength;
|
|
int m_scalingFactor;
|
|
|
|
struct OffsetStruct {
|
|
float minOffset;
|
|
float maxOffset;
|
|
int expandSize;
|
|
};
|
|
|
|
QVector <OffsetStruct> blurOffsets;
|
|
|
|
struct BlurValuesStruct {
|
|
int iteration;
|
|
float offset;
|
|
};
|
|
|
|
QVector <BlurValuesStruct> blurStrengthValues;
|
|
|
|
QMap <EffectWindow*, QMetaObject::Connection> windowBlurChangedConnections;
|
|
KWayland::Server::BlurManagerInterface *m_blurManager = nullptr;
|
|
};
|
|
|
|
inline
|
|
bool BlurEffect::provides(Effect::Feature feature)
|
|
{
|
|
if (feature == Blur) {
|
|
return true;
|
|
}
|
|
return KWin::Effect::provides(feature);
|
|
}
|
|
|
|
|
|
} // namespace KWin
|
|
|
|
#endif
|
|
|