c3ec860a72
Since color correction got pushed merged in the Lanczos Filter is only created for OpenGL2. Which means the complete ARB shader code path has been dead since 4.10 anyway. REVIEW: 108856
75 lines
2 KiB
C++
75 lines
2 KiB
C++
/********************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2010 by Fredrik Höglund <fredrik@kde.org>
|
|
Copyright (C) 2010 Martin Gräßlin <kde@martin-graesslin.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. If not, see <http://www.gnu.org/licenses/>.
|
|
*********************************************************************/
|
|
|
|
#ifndef KWIN_LANCZOSFILTER_P_H
|
|
#define KWIN_LANCZOSFILTER_P_H
|
|
|
|
#include <QObject>
|
|
#include <QBasicTimer>
|
|
#include <QVector>
|
|
#include <QVector2D>
|
|
#include <QVector4D>
|
|
|
|
#include <kwinconfig.h>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
class EffectWindowImpl;
|
|
class WindowPaintData;
|
|
class GLTexture;
|
|
class GLRenderTarget;
|
|
class GLShader;
|
|
|
|
class LanczosFilter
|
|
: public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
explicit LanczosFilter(QObject* parent = 0);
|
|
~LanczosFilter();
|
|
void performPaint(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data);
|
|
|
|
protected:
|
|
virtual void timerEvent(QTimerEvent*);
|
|
private:
|
|
void init();
|
|
void updateOffscreenSurfaces();
|
|
void setUniforms();
|
|
|
|
void createKernel(float delta, int *kernelSize);
|
|
void createOffsets(int count, float width, Qt::Orientation direction);
|
|
GLTexture *m_offscreenTex;
|
|
GLRenderTarget *m_offscreenTarget;
|
|
QBasicTimer m_timer;
|
|
bool m_inited;
|
|
QScopedPointer<GLShader> m_shader;
|
|
int m_uTexUnit;
|
|
int m_uOffsets;
|
|
int m_uKernel;
|
|
QVector2D m_offsets[16];
|
|
QVector4D m_kernel[16];
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif // KWIN_LANCZOSFILTER_P_H
|