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39 
40 #ifndef QGLPIXELBUFFER_P_H
41 #define QGLPIXELBUFFER_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API. It exists purely as an
48 // implementation detail. This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include "QtOpenGL/qglpixelbuffer.h"
55 #include <private/qgl_p.h>
56 #include <private/qglpaintdevice_p.h>
57 
58 QT_BEGIN_NAMESPACE
59 
60 class QEglContext;
61 class QOpenGLFramebufferObject;
62 
63 class QGLPBufferGLPaintDevice : public QGLPaintDevice
64 {
65 public:
paintEngine()66     QPaintEngine* paintEngine() const override {return pbuf->paintEngine();}
size()67     QSize size() const override {return pbuf->size();}
68     QGLContext* context() const override;
69     void beginPaint() override;
70     void endPaint() override;
71     void setPBuffer(QGLPixelBuffer* pb);
72     void setFbo(GLuint fbo);
73 private:
74     QGLPixelBuffer* pbuf;
75 };
76 
77 class QGLPixelBufferPrivate {
Q_DECLARE_PUBLIC(QGLPixelBuffer)78     Q_DECLARE_PUBLIC(QGLPixelBuffer)
79 public:
80     QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(nullptr), widget(nullptr), fbo(nullptr), blit_fbo(nullptr), pbuf(nullptr), ctx(nullptr)
81     {
82     }
83     bool init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
84     void common_init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
85     bool cleanup();
86 
87     QGLPixelBuffer *q_ptr;
88     bool invalid;
89     QGLContext *qctx;
90     QGLPBufferGLPaintDevice glDevice;
91     QGLWidget *widget;
92     QOpenGLFramebufferObject *fbo;
93     QOpenGLFramebufferObject *blit_fbo;
94     QGLFormat format;
95 
96     QGLFormat req_format;
97     QPointer<QGLWidget> req_shareWidget;
98     QSize req_size;
99 
100     //stubs
101     void *pbuf;
102     void *ctx;
103 };
104 
105 QT_END_NAMESPACE
106 
107 #endif // QGLPIXELBUFFER_P_H
108