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39
40#ifndef QGLPIXELBUFFER_H
41#define QGLPIXELBUFFER_H
42
43#include <QtOpenGL/qgl.h>
44#include <QtGui/qpaintdevice.h>
45
46QT_BEGIN_NAMESPACE
47
48
49class QGLPixelBufferPrivate;
50
51class Q_OPENGL_EXPORT QGLPixelBuffer : public QPaintDevice
52{
53 Q_DECLARE_PRIVATE(QGLPixelBuffer)
54public:
55 QGLPixelBuffer(const QSize &size, const QGLFormat &format = QGLFormat::defaultFormat(),
56 QGLWidget *shareWidget = nullptr);
57 QGLPixelBuffer(int width, int height, const QGLFormat &format = QGLFormat::defaultFormat(),
58 QGLWidget *shareWidget = nullptr);
59 virtual ~QGLPixelBuffer();
60
61 bool isValid() const;
62 bool makeCurrent();
63 bool doneCurrent();
64
65 QGLContext *context() const;
66
67 GLuint generateDynamicTexture() const;
68 bool bindToDynamicTexture(GLuint texture);
69 void releaseFromDynamicTexture();
70 void updateDynamicTexture(GLuint texture_id) const;
71
72 GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D);
73 GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D);
74 GLuint bindTexture(const QString &fileName);
75 void deleteTexture(GLuint texture_id);
76
77 void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
78 void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
79
80 QSize size() const;
81 Qt::HANDLE handle() const;
82 QImage toImage() const;
83
84 QPaintEngine *paintEngine() const override;
85 QGLFormat format() const;
86
87 static bool hasOpenGLPbuffers();
88
89protected:
90 int metric(PaintDeviceMetric metric) const override;
91 int devType() const override { return QInternal::Pbuffer; }
92
93private:
94 Q_DISABLE_COPY(QGLPixelBuffer)
95 QScopedPointer<QGLPixelBufferPrivate> d_ptr;
96 friend class QGLDrawable;
97 friend class QGLPaintDevice;
98 friend class QGLPBufferGLPaintDevice;
99 friend class QGLContextPrivate;
100};
101
102QT_END_NAMESPACE
103
104#endif // QGLPIXELBUFFER_H
105