1/****************************************************************************
2**
3** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4** Contact: http://www.qt-project.org/legal
5**
6** This file is part of the QtOpenGL module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
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15** use the contact form at http://qt.digia.com/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 2.1 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 2.1 requirements
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25** In addition, as a special exception, Digia gives you certain additional
26** rights. These rights are described in the Digia Qt LGPL Exception
27** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28**
29** GNU General Public License Usage
30** Alternatively, this file may be used under the terms of the GNU
31** General Public License version 3.0 as published by the Free Software
32** Foundation and appearing in the file LICENSE.GPL included in the
33** packaging of this file. Please review the following information to
34** ensure the GNU General Public License version 3.0 requirements will be
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40****************************************************************************/
41
42#ifndef QGLPIXELBUFFER_H
43#define QGLPIXELBUFFER_H
44
45#include <QtOpenGL/qgl.h>
46#include <QtGui/qpaintdevice.h>
47
48QT_BEGIN_HEADER
49
50QT_BEGIN_NAMESPACE
51
52QT_MODULE(OpenGL)
53
54class QGLPixelBufferPrivate;
55
56class Q_OPENGL_EXPORT QGLPixelBuffer : public QPaintDevice
57{
58 Q_DECLARE_PRIVATE(QGLPixelBuffer)
59public:
60 QGLPixelBuffer(const QSize &size, const QGLFormat &format = QGLFormat::defaultFormat(),
61 QGLWidget *shareWidget = 0);
62 QGLPixelBuffer(int width, int height, const QGLFormat &format = QGLFormat::defaultFormat(),
63 QGLWidget *shareWidget = 0);
64 virtual ~QGLPixelBuffer();
65
66 bool isValid() const;
67 bool makeCurrent();
68 bool doneCurrent();
69
70 GLuint generateDynamicTexture() const;
71 bool bindToDynamicTexture(GLuint texture);
72 void releaseFromDynamicTexture();
73 void updateDynamicTexture(GLuint texture_id) const;
74
75 GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D);
76 GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D);
77 GLuint bindTexture(const QString &fileName);
78 void deleteTexture(GLuint texture_id);
79
80 void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
81 void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
82
83#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
84 bool bindToDynamicTexture(QMacCompatGLuint texture);
85 void updateDynamicTexture(QMacCompatGLuint texture_id) const;
86 GLuint bindTexture(const QImage &image, QMacCompatGLenum target = GL_TEXTURE_2D);
87 GLuint bindTexture(const QPixmap &pixmap, QMacCompatGLenum target = GL_TEXTURE_2D);
88
89 void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
90 void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
91
92 void deleteTexture(QMacCompatGLuint texture_id);
93#endif
94
95 QSize size() const;
96 Qt::HANDLE handle() const;
97 QImage toImage() const;
98
99 QPaintEngine *paintEngine() const;
100 QGLFormat format() const;
101
102 static bool hasOpenGLPbuffers();
103
104protected:
105 int metric(PaintDeviceMetric metric) const;
106 int devType() const { return QInternal::Pbuffer; }
107
108private:
109 Q_DISABLE_COPY(QGLPixelBuffer)
110 QScopedPointer<QGLPixelBufferPrivate> d_ptr;
111 friend class QGLDrawable;
112 friend class QGLWindowSurface;
113 friend class QGLPaintDevice;
114 friend class QGLPBufferGLPaintDevice;
115 friend class QGLContextPrivate;
116};
117
118QT_END_NAMESPACE
119
120QT_END_HEADER
121
122#endif // QGLPIXELBUFFER_H
123