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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLPIXELBUFFER_H
#define QGLPIXELBUFFER_H
#include <QtOpenGL/qgl.h>
#include <QtGui/qpaintdevice.h>
QT_BEGIN_NAMESPACE
class QGLPixelBufferPrivate;
class Q_OPENGL_EXPORT QGLPixelBuffer : public QPaintDevice
{
Q_DECLARE_PRIVATE(QGLPixelBuffer)
public:
QGLPixelBuffer(const QSize &size, const QGLFormat &format = QGLFormat::defaultFormat(),
QGLWidget *shareWidget = Q_NULLPTR);
QGLPixelBuffer(int width, int height, const QGLFormat &format = QGLFormat::defaultFormat(),
QGLWidget *shareWidget = Q_NULLPTR);
virtual ~QGLPixelBuffer();
bool isValid() const;
bool makeCurrent();
bool doneCurrent();
QGLContext *context() const;
GLuint generateDynamicTexture() const;
bool bindToDynamicTexture(GLuint texture);
void releaseFromDynamicTexture();
void updateDynamicTexture(GLuint texture_id) const;
GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D);
GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D);
GLuint bindTexture(const QString &fileName);
void deleteTexture(GLuint texture_id);
void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
QSize size() const;
Qt::HANDLE handle() const;
QImage toImage() const;
QPaintEngine *paintEngine() const Q_DECL_OVERRIDE;
QGLFormat format() const;
static bool hasOpenGLPbuffers();
protected:
int metric(PaintDeviceMetric metric) const Q_DECL_OVERRIDE;
int devType() const Q_DECL_OVERRIDE { return QInternal::Pbuffer; }
private:
Q_DISABLE_COPY(QGLPixelBuffer)
QScopedPointer<QGLPixelBufferPrivate> d_ptr;
friend class QGLDrawable;
friend class QGLPaintDevice;
friend class QGLPBufferGLPaintDevice;
friend class QGLContextPrivate;
};
QT_END_NAMESPACE
#endif // QGLPIXELBUFFER_H
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