common/include/QtOpenGL/5.5.0/QtOpenGL/private/qglpixelbuffer_p.h

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#ifndef QGLPIXELBUFFER_P_H
#define QGLPIXELBUFFER_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the QLibrary class.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#include "QtOpenGL/qglpixelbuffer.h"
#include <private/qgl_p.h>
#include <private/qglpaintdevice_p.h>

QT_BEGIN_NAMESPACE

class QEglContext;
class QOpenGLFramebufferObject;

class QGLPBufferGLPaintDevice : public QGLPaintDevice
{
public:
    virtual QPaintEngine* paintEngine() const {return pbuf->paintEngine();}
    virtual QSize size() const {return pbuf->size();}
    virtual QGLContext* context() const;
    virtual void beginPaint();
    virtual void endPaint();
    void setPBuffer(QGLPixelBuffer* pb);
    void setFbo(GLuint fbo);
private:
    QGLPixelBuffer* pbuf;
};

class QGLPixelBufferPrivate {
    Q_DECLARE_PUBLIC(QGLPixelBuffer)
public:
    QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(0), widget(0), fbo(0), blit_fbo(0), pbuf(0), ctx(0)
    {
    }
    bool init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
    void common_init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
    bool cleanup();

    QGLPixelBuffer *q_ptr;
    bool invalid;
    QGLContext *qctx;
    QGLPBufferGLPaintDevice glDevice;
    QGLWidget *widget;
    QOpenGLFramebufferObject *fbo;
    QOpenGLFramebufferObject *blit_fbo;
    QGLFormat format;

    QGLFormat req_format;
    QPointer<QGLWidget> req_shareWidget;
    QSize req_size;

    //stubs
    void *pbuf;
    void *ctx;
};

QT_END_NAMESPACE

#endif // QGLPIXELBUFFER_P_H