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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of mcompositor.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/
#ifndef MCOMPOSITEWINDOWSHADEREFFECT_H
#define MCOMPOSITEWINDOWSHADEREFFECT_H
#include <QObject>
#include <QVector>
#include <QGLShaderProgram>
class QTransform;
class QRectF;
class MCompositeWindowShaderEffect;
class MTexturePixmapPrivate;
class MCompositeWindow;
class MCompositeWindowShaderEffectPrivate;
class MCompositeWindowShaderEffect: public QObject
{
Q_OBJECT
public:
MCompositeWindowShaderEffect(QObject* parent = 0);
virtual ~MCompositeWindowShaderEffect();
GLuint installShaderFragment(const QByteArray& code);
GLuint texture() const;
void setActiveShaderFragment(GLuint id);
GLuint activeShaderFragment() const;
void installEffect(MCompositeWindow* window);
void removeEffect(MCompositeWindow* window);
bool enabled() const;
public slots:
void setEnabled(bool enabled);
signals:
void enabledChanged( bool enabled);
protected:
MCompositeWindow *comp_window;
void drawSource(const QTransform &transform,
const QRectF &drawRect, qreal opacity,
bool texcoords_from_rect = false);
virtual void drawTexture(const QTransform &transform,
const QRectF &drawRect, qreal opacity) = 0;
virtual void setUniforms(QGLShaderProgram* program);
private:
/* \cond */
const QVector<GLuint>& fragmentIds() const;
MCompositeWindowShaderEffectPrivate* d;
friend class MTexturePixmapPrivate;
friend class MCompositeWindowShaderEffectPrivate;
/* \endcond */
};
/* \cond
* Internal class. Do not use! Not part of public API
*/
class MCompositeWindowShaderEffectPrivate
{
public:
void drawTexture(MTexturePixmapPrivate* render,
const QTransform &transform,
const QRectF &drawRect, qreal opacity);
private:
explicit MCompositeWindowShaderEffectPrivate(MCompositeWindowShaderEffect*);
MCompositeWindowShaderEffect* effect;
MTexturePixmapPrivate* priv_render;
// QMap<GLuint, QByteArray> pixelfragments;
QVector<GLuint> pixfrag_ids;
GLuint active_fragment;
bool enabled;
friend class MCompositeWindowShaderEffect;
};
/* \endcond */
#endif
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