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Crazy Eddies GUI System 0.7.6
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OpenGLWGLPBTextureTarget - allows rendering to an OpenGL texture via the pbuffer WGL extension. More...
Inheritance diagram for CEGUI::OpenGLWGLPBTextureTarget:
Collaboration diagram for CEGUI::OpenGLWGLPBTextureTarget:Public Member Functions | |
| OpenGLWGLPBTextureTarget (OpenGLRenderer &owner) | |
| void | activate () |
| Activate the render target and put it in a state ready to be drawn to. | |
| void | deactivate () |
| Deactivate the render target after having completed rendering. | |
| void | clear () |
| Clear the surface of the underlying texture. | |
| void | declareRenderSize (const Size &sz) |
| Used to declare to the TextureTarget the largest size, in pixels, of the next set of incoming rendering operations. | |
| void | grabTexture () |
| Grab the texture to a local buffer. | |
| void | restoreTexture () |
| Restore the texture from the locally buffered copy previously create by a call to grabTexture. | |
Protected Member Functions | |
| void | initialisePBuffer () |
| Initialise the PBuffer with the needed size. | |
| void | releasePBuffer () |
| Cleans up the pbuffer resources. | |
| void | enablePBuffer () const |
| Switch rendering so it targets the pbuffer. | |
| void | disablePBuffer () const |
| Switch rendering to target what was active before the pbuffer was used. | |
| void | initialiseTexture () |
| Perform basic initialisation of the texture we're going to use. | |
Protected Attributes | |
| int | d_pixfmt |
| Holds the pixel format we use when creating the pbuffer. | |
| HPBUFFERARB | d_pbuffer |
| Handle to the pbuffer itself. | |
| HGLRC | d_context |
| Handle to the rendering context for the pbuffer. | |
| HDC | d_hdc |
| Handle to the Windows device context for the pbuffer. | |
| HGLRC | d_prevContext |
| Handle to the rendering context in use when we switched to the pbuffer. | |
| HDC | d_prevDC |
| Handle to the device context in use when we switched to the pbuffer. | |
Static Protected Attributes | |
| static const float | DEFAULT_SIZE |
| default size of created texture objects | |
OpenGLWGLPBTextureTarget - allows rendering to an OpenGL texture via the pbuffer WGL extension.
| void CEGUI::OpenGLWGLPBTextureTarget::activate | ( | ) | [virtual] |
Activate the render target and put it in a state ready to be drawn to.
Reimplemented from CEGUI::OpenGLRenderTarget.
| void CEGUI::OpenGLWGLPBTextureTarget::deactivate | ( | ) | [virtual] |
Deactivate the render target after having completed rendering.
Reimplemented from CEGUI::OpenGLRenderTarget.
| void CEGUI::OpenGLWGLPBTextureTarget::declareRenderSize | ( | const Size & | sz | ) | [virtual] |
Used to declare to the TextureTarget the largest size, in pixels, of the next set of incoming rendering operations.
| sz | Size object describing the largest area that will be rendererd in the next batch of rendering operations. |
| InvalidRequestException | May be thrown if the TextureTarget would not be able to handle the operations rendering content of the given size. |
Implements CEGUI::TextureTarget.
| void CEGUI::OpenGLWGLPBTextureTarget::grabTexture | ( | ) | [virtual] |
Grab the texture to a local buffer.
This will destroy the OpenGL texture, and restoreTexture must be called before using it again.
Reimplemented from CEGUI::OpenGLTextureTarget.
1.7.4