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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used 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. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLPIXMAPFILTER_P_H
#define QGLPIXMAPFILTER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qpixmapfilter_p.h>
#include <QtOpenGL/qgl.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QGLPixelBuffer;
QT_MODULE(OpenGL)
class QGLPixmapFilterBase
{
public:
virtual ~QGLPixmapFilterBase() {}
protected:
void bindTexture(const QPixmap &src) const;
void drawImpl(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect = QRectF()) const;
virtual bool processGL(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect) const = 0;
};
template <typename Filter>
class QGLPixmapFilter : public Filter, public QGLPixmapFilterBase
{
public:
void draw(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect = QRectF()) const {
const QRectF source = srcRect.isNull() ? QRectF(src.rect()) : srcRect;
if (painter)
drawImpl(painter, pos, src, source);
}
};
class Q_OPENGL_EXPORT QGLSLProgram
{
public:
QGLSLProgram(const QString &src);
~QGLSLProgram();
bool success() const;
void enable();
void disable();
int getUniformLocation(const QString &name);
void setUniform(int uniform, int value);
void setUniform(int uniform, qreal value);
void setUniform(int uniform, qreal v1, qreal v2);
void setUniform(int uniform, qreal v1, qreal v2, qreal v3);
void setUniform(int uniform, qreal v1, qreal v2, qreal v3, qreal v4);
void setUniform(int uniform, int count, float *v);
private:
GLuint m_shader;
GLuint m_program;
GLint m_valid;
const QGLContext *ctx;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QGLPIXMAPFILTER_P_H
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