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 |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and Digia. For licensing terms and |
14 | ** conditions see http://qt.digia.com/licensing. For further information |
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 |
23 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
24 | ** |
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 |
35 | ** met: http://www.gnu.org/copyleft/gpl.html. |
36 | ** |
37 | ** |
38 | ** $QT_END_LICENSE$ |
39 | ** |
40 | ****************************************************************************/ |
41 | |
42 | #ifndef QGLFRAMEBUFFEROBJECT_H |
43 | #define QGLFRAMEBUFFEROBJECT_H |
44 | |
45 | #include <QtOpenGL/qgl.h> |
46 | #include <QtGui/qpaintdevice.h> |
47 | |
48 | QT_BEGIN_HEADER |
49 | |
50 | QT_BEGIN_NAMESPACE |
51 | |
52 | QT_MODULE(OpenGL) |
53 | |
54 | class QGLFramebufferObjectPrivate; |
55 | class QGLFramebufferObjectFormat; |
56 | |
57 | class Q_OPENGL_EXPORT QGLFramebufferObject : public QPaintDevice |
58 | { |
59 | Q_DECLARE_PRIVATE(QGLFramebufferObject) |
60 | public: |
61 | enum Attachment { |
62 | NoAttachment, |
63 | CombinedDepthStencil, |
64 | Depth |
65 | }; |
66 | |
67 | QGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D); |
68 | QGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D); |
69 | #if !defined(QT_OPENGL_ES) || defined(Q_QDOC) |
70 | QGLFramebufferObject(const QSize &size, Attachment attachment, |
71 | GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8); |
72 | QGLFramebufferObject(int width, int height, Attachment attachment, |
73 | GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8); |
74 | #else |
75 | QGLFramebufferObject(const QSize &size, Attachment attachment, |
76 | GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA); |
77 | QGLFramebufferObject(int width, int height, Attachment attachment, |
78 | GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA); |
79 | #endif |
80 | |
81 | QGLFramebufferObject(const QSize &size, const QGLFramebufferObjectFormat &format); |
82 | QGLFramebufferObject(int width, int height, const QGLFramebufferObjectFormat &format); |
83 | |
84 | #ifdef Q_MAC_COMPAT_GL_FUNCTIONS |
85 | QGLFramebufferObject(const QSize &size, QMacCompatGLenum target = GL_TEXTURE_2D); |
86 | QGLFramebufferObject(int width, int height, QMacCompatGLenum target = GL_TEXTURE_2D); |
87 | |
88 | QGLFramebufferObject(const QSize &size, Attachment attachment, |
89 | QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8); |
90 | QGLFramebufferObject(int width, int height, Attachment attachment, |
91 | QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8); |
92 | #endif |
93 | |
94 | virtual ~QGLFramebufferObject(); |
95 | |
96 | QGLFramebufferObjectFormat format() const; |
97 | |
98 | bool isValid() const; |
99 | bool isBound() const; |
100 | bool bind(); |
101 | bool release(); |
102 | |
103 | GLuint texture() const; |
104 | QSize size() const; |
105 | QImage toImage() const; |
106 | Attachment attachment() const; |
107 | |
108 | QPaintEngine *paintEngine() const; |
109 | GLuint handle() const; |
110 | |
111 | static bool bindDefault(); |
112 | |
113 | static bool hasOpenGLFramebufferObjects(); |
114 | |
115 | void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); |
116 | void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); |
117 | #ifdef Q_MAC_COMPAT_GL_FUNCTIONS |
118 | void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D); |
119 | void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D); |
120 | #endif |
121 | |
122 | static bool hasOpenGLFramebufferBlit(); |
123 | static void blitFramebuffer(QGLFramebufferObject *target, const QRect &targetRect, |
124 | QGLFramebufferObject *source, const QRect &sourceRect, |
125 | GLbitfield buffers = GL_COLOR_BUFFER_BIT, |
126 | GLenum filter = GL_NEAREST); |
127 | |
128 | protected: |
129 | int metric(PaintDeviceMetric metric) const; |
130 | int devType() const { return QInternal::FramebufferObject; } |
131 | |
132 | private: |
133 | Q_DISABLE_COPY(QGLFramebufferObject) |
134 | QScopedPointer<QGLFramebufferObjectPrivate> d_ptr; |
135 | friend class QGLPaintDevice; |
136 | friend class QGLFBOGLPaintDevice; |
137 | }; |
138 | |
139 | class QGLFramebufferObjectFormatPrivate; |
140 | class Q_OPENGL_EXPORT QGLFramebufferObjectFormat |
141 | { |
142 | public: |
143 | QGLFramebufferObjectFormat(); |
144 | QGLFramebufferObjectFormat(const QGLFramebufferObjectFormat &other); |
145 | QGLFramebufferObjectFormat &operator=(const QGLFramebufferObjectFormat &other); |
146 | ~QGLFramebufferObjectFormat(); |
147 | |
148 | void setSamples(int samples); |
149 | int samples() const; |
150 | |
151 | void setMipmap(bool enabled); |
152 | bool mipmap() const; |
153 | |
154 | void setAttachment(QGLFramebufferObject::Attachment attachment); |
155 | QGLFramebufferObject::Attachment attachment() const; |
156 | |
157 | void setTextureTarget(GLenum target); |
158 | GLenum textureTarget() const; |
159 | |
160 | void setInternalTextureFormat(GLenum internalTextureFormat); |
161 | GLenum internalTextureFormat() const; |
162 | |
163 | #ifdef Q_MAC_COMPAT_GL_FUNCTIONS |
164 | void setTextureTarget(QMacCompatGLenum target); |
165 | void setInternalTextureFormat(QMacCompatGLenum internalTextureFormat); |
166 | #endif |
167 | |
168 | bool operator==(const QGLFramebufferObjectFormat& other) const; |
169 | bool operator!=(const QGLFramebufferObjectFormat& other) const; |
170 | |
171 | private: |
172 | QGLFramebufferObjectFormatPrivate *d; |
173 | |
174 | void detach(); |
175 | }; |
176 | |
177 | QT_END_NAMESPACE |
178 | |
179 | QT_END_HEADER |
180 | #endif // QGLFRAMEBUFFEROBJECT_H |
181 | |