Basic Image AlgorithmS Library  2.8.0
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BIAS::glfRenderingContext_WGL Class Referenceabstract

Base class for WGL rendering contexts. More...

#include <OpenGLFramework/RenderingContext/glfRenderingContext_WGL.hh>

+ Inheritance diagram for BIAS::glfRenderingContext_WGL:
+ Collaboration diagram for BIAS::glfRenderingContext_WGL:

Public Types

enum  GrabSource { GRAB_COLOR, GRAB_DEPTH, GRAB_STENCIL }
 Frame buffer data that can be retrieved by Grab. More...
 

Public Member Functions

virtual void Destroy ()
 Uninitializes the rendering context. More...
 
virtual void DoneCurrent ()
 Removes the current state of this context. More...
 
virtual void GetConfig (glfRenderingContextConfig &config)
 Gets the currently used config of the rendering context. More...
 
 glfRenderingContext_WGL ()
 
void Grab (BIAS::Image< unsigned char > &image, GrabSource source=GRAB_COLOR, int x=0, int y=0, int width=0, int height=0)
 Copies the contents of the framebuffer to an image. More...
 
virtual void Init (const glfRenderingContextConfig &config)
 Initializes the rendering context with the given configuration. More...
 
virtual void MakeCurrent ()
 Makes this context the current target for OpenGL calls. More...
 
 ~glfRenderingContext_WGL ()
 

Protected Member Functions

virtual HDC CreateDeviceContext (int width, int height, int pixelFormat)=0
 
virtual void DestroyDeviceContext ()=0
 
virtual void GetSize (int &width, int &height)=0
 
virtual int GetWglRenderTargetAttribute () const =0
 
void InitGlew ()
 Initializes GLEW if enabled in the BIAS configuration. More...
 

Protected Attributes

HDC hDC_
 
HGLRC hRC_
 
int pixelFormat_
 

Detailed Description

Base class for WGL rendering contexts.

Author
05/2007 jkollmann

Definition at line 40 of file glfRenderingContext_WGL.hh.

Member Enumeration Documentation

Frame buffer data that can be retrieved by Grab.

Enumerator
GRAB_COLOR 

Grab RGB image.

GRAB_DEPTH 

Grab depth buffer.

GRAB_STENCIL 

Grab stencil buffer.

Definition at line 102 of file glfRenderingContext.hh.

Constructor & Destructor Documentation

glfRenderingContext_WGL::glfRenderingContext_WGL ( )

Definition at line 34 of file glfRenderingContext_WGL.cpp.

glfRenderingContext_WGL::~glfRenderingContext_WGL ( )

Definition at line 40 of file glfRenderingContext_WGL.cpp.

Member Function Documentation

virtual HDC BIAS::glfRenderingContext_WGL::CreateDeviceContext ( int  width,
int  height,
int  pixelFormat 
)
protectedpure virtual

Implemented in BIAS::glfPBuffer_WGL.

void glfRenderingContext_WGL::Destroy ( )
virtual

Uninitializes the rendering context.

This method must be called before the application quits and after all Open GL resources (textures etc.) have been deleted.

Implements BIAS::glfRenderingContext.

Definition at line 146 of file glfRenderingContext_WGL.cpp.

virtual void BIAS::glfRenderingContext_WGL::DestroyDeviceContext ( )
protectedpure virtual

Implemented in BIAS::glfPBuffer_WGL.

void glfRenderingContext_WGL::DoneCurrent ( )
virtual

Removes the current state of this context.

Must be called before MakeCurrent is called from another thread.

Reimplemented from BIAS::glfRenderingContext.

Definition at line 165 of file glfRenderingContext_WGL.cpp.

void glfRenderingContext_WGL::GetConfig ( glfRenderingContextConfig config)
virtual
virtual void BIAS::glfRenderingContext_WGL::GetSize ( int &  width,
int &  height 
)
protectedpure virtual

Implemented in BIAS::glfPBuffer_WGL.

virtual int BIAS::glfRenderingContext_WGL::GetWglRenderTargetAttribute ( ) const
protectedpure virtual

Implemented in BIAS::glfPBuffer_WGL.

void glfRenderingContext::Grab ( BIAS::Image< unsigned char > &  image,
GrabSource  source = GRAB_COLOR,
int  x = 0,
int  y = 0,
int  width = 0,
int  height = 0 
)
inherited

Copies the contents of the framebuffer to an image.

This method calls MakeCurrent on this rendering context.

Examples:
ExampleRenderingContext.cpp.

Definition at line 58 of file glfRenderingContext.cpp.

References BIAS::Image< StorageType >::GetImageData(), BIAS::glfRenderingContextConfig::height, BIAS::Image< StorageType >::Init(), BIAS::ImageBase::IsEmpty(), BIAS::Image< StorageType >::Release(), and BIAS::glfRenderingContextConfig::width.

void glfRenderingContext_WGL::Init ( const glfRenderingContextConfig config)
virtual
void glfRenderingContext::InitGlew ( )
protectedinherited

Initializes GLEW if enabled in the BIAS configuration.

If not, this method does nothing. Should be called during Init by every glfRenderingContext implementation.

Definition at line 117 of file glfRenderingContext.cpp.

References BIAS::Singleton< GlewInitWrapper >::GetInstance(), and BIAS::GlewInitWrapper::Init().

void glfRenderingContext_WGL::MakeCurrent ( )
virtual

Makes this context the current target for OpenGL calls.

Must be called when switching between multiple rendering contexts.

Implements BIAS::glfRenderingContext.

Definition at line 157 of file glfRenderingContext_WGL.cpp.

Member Data Documentation

HDC BIAS::glfRenderingContext_WGL::hDC_
protected

Definition at line 57 of file glfRenderingContext_WGL.hh.

HGLRC BIAS::glfRenderingContext_WGL::hRC_
protected

Definition at line 58 of file glfRenderingContext_WGL.hh.

int BIAS::glfRenderingContext_WGL::pixelFormat_
protected

Definition at line 59 of file glfRenderingContext_WGL.hh.


The documentation for this class was generated from the following files: