Equalizer  2.1.0
Parallel Rendering Framework
frameBufferObject.h
1 
2 /* Copyright (c) 2008-2015, Cedric Stalder <cedric.stalder@gmail.com>
3  * Stefan Eilemann <eile@equalizergraphics.com>
4  * Daniel Nachbaur <danielnachbaur@gmail.com>
5  *
6  * This library is free software; you can redistribute it and/or modify it under
7  * the terms of the GNU Lesser General Public License version 2.1 as published
8  * by the Free Software Foundation.
9  *
10  * This library is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
13  * details.
14  *
15  * You should have received a copy of the GNU Lesser General Public License
16  * along with this library; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef EQUTIL_FRAMEBUFFEROBJECT_H
21 #define EQUTIL_FRAMEBUFFEROBJECT_H
22 
23 #include <eq/util/texture.h> // member
24 #include <eq/util/types.h>
25 
26 #include <vector>
27 
28 namespace eq
29 {
30 namespace util
31 {
34 {
35 public:
41  EQ_API FrameBufferObject(const GLEWContext* const glewContext,
42  const unsigned textureTarget = 0x84F5
43  /*GL_TEXTURE_RECTANGLE_ARB*/);
44 
46  EQ_API ~FrameBufferObject();
47 
58  EQ_API bool addColorTexture();
59 
75  EQ_API Error init(const int32_t width, const int32_t height,
76  const unsigned colorFormat, const int32_t depthSize,
77  const int32_t stencilSize, const int32_t samplesSize = 1);
78 
80  EQ_API void exit();
81 
90  EQ_API void bind(const uint32_t target = 0x8D40 /*GL_FRAMEBUFFER_EXT*/);
91 
98  EQ_API void unbind(const uint32_t target = 0x8D40 /*GL_FRAMEBUFFER_EXT*/);
99 
110  EQ_API Error resize(const int32_t width, const int32_t height);
111 
113  int32_t getWidth() const
114  {
115  LBASSERT(!_colors.empty());
116  return _colors.front()->getWidth();
117  }
118 
120  int32_t getHeight() const
121  {
122  LBASSERT(!_colors.empty());
123  return _colors.front()->getHeight();
124  }
125 
127  const Textures& getColorTextures() const { return _colors; }
129  const Texture& getDepthTexture() const { return _depth; }
131  const GLEWContext* glewGetContext() const { return _glewContext; }
133  bool isValid() const { return _valid; }
134 private:
135  unsigned _fboID;
136 
137  Textures _colors;
138  Texture _depth;
139 
140  const GLEWContext* const _glewContext;
141 
142  bool _valid;
143 
144  LB_TS_VAR(_thread);
145 
147  Error _checkStatus();
148 };
149 }
150 }
151 
152 #endif // EQUTIL_FRAMEBUFFEROBJECT_H
const Textures & getColorTextures() const
A C++ class to abstract OpenGL frame buffer objects.
EQ_API ~FrameBufferObject()
Destruct the Frame Buffer Object.
const GLEWContext * glewGetContext() const
std::vector< Texture * > Textures
A vector of pointers to eq::util::Texture.
Definition: eq/util/types.h:43
A wrapper around OpenGL textures.
Definition: texture.h:41
EQ_API void exit()
De-initialize the Frame Buffer Object.
const Texture & getDepthTexture() const
EQ_API Error resize(const int32_t width, const int32_t height)
Resize the FBO.
EQ_API bool addColorTexture()
Add one color texture to the FBO.
EQ_API FrameBufferObject(const GLEWContext *const glewContext, const unsigned textureTarget=0x84F5)
Construct a new Frame Buffer Object.
The Equalizer client library.
Definition: eq/agl/types.h:23
EQ_API void unbind(const uint32_t target=0x8D40)
Unbind any Frame Buffer Object and use the default drawable for the current context.
EQ_API void bind(const uint32_t target=0x8D40)
Bind to the Frame Buffer Object.
EQ_API Error init(const int32_t width, const int32_t height, const unsigned colorFormat, const int32_t depthSize, const int32_t stencilSize, const int32_t samplesSize=1)
Initialize the Frame Buffer Object.