OpenGl_PrimitiveArray Class Reference

Class for rendering of arbitrary primitive array. More...

#include <OpenGl_PrimitiveArray.hxx>

Inheritance diagram for OpenGl_PrimitiveArray:

Public Types
enum	{ DRAW_MODE_NONE = -1 }

Public Member Functions
	OpenGl_PrimitiveArray (const OpenGl_GraphicDriver *theDriver)
	Empty constructor. More...
	OpenGl_PrimitiveArray (const OpenGl_GraphicDriver *theDriver, const Graphic3d_TypeOfPrimitiveArray theType, const Handle< Graphic3d_IndexBuffer > &theIndices, const Handle< Graphic3d_Buffer > &theAttribs, const Handle< Graphic3d_BoundBuffer > &theBounds)
	Default constructor. More...
virtual	~OpenGl_PrimitiveArray ()
	Destructor. More...
virtual void	Render (const Handle< OpenGl_Workspace > &theWorkspace) const
	Render primitives to the window. More...
virtual void	Release (OpenGl_Context *theContext)
	Release OpenGL resources (VBOs) More...
Standard_Boolean	IsInitialized () const
	Return true if VBOs initialization has been performed. VBO initialization is performed during first Render() call. Notice that this flag does not indicate VBOs validity. More...
void	Invalidate () const
	Invalidate VBO content without destruction. More...
GLint	DrawMode () const
const Handle< Graphic3d_IndexBuffer > &	Indices () const
const Handle< Graphic3d_Buffer > &	Attributes () const
const Handle< Graphic3d_BoundBuffer > &	Bounds () const
Standard_Size	GetUID () const
	Returns unique ID of primitive array. More...
void	InitBuffers (const Handle< OpenGl_Context > &theContext, const Graphic3d_TypeOfPrimitiveArray theType, const Handle< Graphic3d_IndexBuffer > &theIndices, const Handle< Graphic3d_Buffer > &theAttribs, const Handle< Graphic3d_BoundBuffer > &theBounds)
	Initialize indices, attributes and bounds with new data. More...
Public Member Functions inherited from OpenGl_Element
	OpenGl_Element ()
Standard_Boolean	RenderFiltered (const Handle< OpenGl_Workspace > &theWorkspace, const Handle< OpenGl_RenderFilter > &theFilter) const
	Render element if it passes the filtering procedure. This method should be used for elements which can be used in scope of rendering algorithms. E.g. elements of groups during recursive rendering. If render filter is null, pure rendering is performed. More...

Protected Member Functions
Standard_Boolean	buildVBO (const Handle< OpenGl_Context > &theCtx, const Standard_Boolean theToKeepData) const
	VBO initialization procedures. More...
void	clearMemoryGL (const Handle< OpenGl_Context > &theGlCtx) const
Protected Member Functions inherited from OpenGl_Element
virtual	~OpenGl_Element ()

Protected Attributes
Handle< OpenGl_VertexBuffer >	myVboIndices
Handle< OpenGl_VertexBuffer >	myVboAttribs
Handle< Graphic3d_IndexBuffer >	myIndices
Handle< Graphic3d_Buffer >	myAttribs
Handle< Graphic3d_BoundBuffer >	myBounds
GLint	myDrawMode
Standard_Boolean	myIsVboInit
Standard_Size	myUID
	Unique ID of primitive array. More...

Additional Inherited Members
Static Public Member Functions inherited from OpenGl_Element
template<typename theResource_t >
static void	Destroy (OpenGl_Context *theContext, theResource_t *&theElement)
	Pointer to the context is used because this method might be called when the context is already being destroyed and usage of a handle would be unsafe. More...

Detailed Description

Class for rendering of arbitrary primitive array.

Member Enumeration Documentation

anonymous enum

Enumerator
DRAW_MODE_NONE

Constructor & Destructor Documentation

OpenGl_PrimitiveArray::OpenGl_PrimitiveArray

(

const OpenGl_GraphicDriver *

theDriver

)

Empty constructor.

OpenGl_PrimitiveArray::OpenGl_PrimitiveArray	(	const OpenGl_GraphicDriver *	theDriver,
		const Graphic3d_TypeOfPrimitiveArray	theType,
		const Handle< Graphic3d_IndexBuffer > &	theIndices,
		const Handle< Graphic3d_Buffer > &	theAttribs,
		const Handle< Graphic3d_BoundBuffer > &	theBounds
	)

Default constructor.

virtual OpenGl_PrimitiveArray::~OpenGl_PrimitiveArray ( )

virtual

Destructor.

Member Function Documentation

const Handle< Graphic3d_Buffer >& OpenGl_PrimitiveArray::Attributes ( ) const

inline

Returns

attributes array

const Handle< Graphic3d_BoundBuffer >& OpenGl_PrimitiveArray::Bounds ( ) const

inline

Returns

bounds array

Standard_Boolean OpenGl_PrimitiveArray::buildVBO ( const Handle< OpenGl_Context > &  theCtx, const Standard_Boolean  theToKeepData  ) const

protected

VBO initialization procedures.

Parameters

theCtx	bound GL context
theToKeepData	when true, myAttribs will not be nullified after VBO creation

void OpenGl_PrimitiveArray::clearMemoryGL ( const Handle< OpenGl_Context > &  theGlCtx ) const

protected

GLint OpenGl_PrimitiveArray::DrawMode ( ) const

inline

Returns

primitive type (GL_LINES, GL_TRIANGLES and others)

Standard_Size OpenGl_PrimitiveArray::GetUID ( ) const

inline

Returns unique ID of primitive array.

const Handle< Graphic3d_IndexBuffer >& OpenGl_PrimitiveArray::Indices ( ) const

inline

Returns

indices array

void OpenGl_PrimitiveArray::InitBuffers	(	const Handle< OpenGl_Context > &	theContext,
		const Graphic3d_TypeOfPrimitiveArray	theType,
		const Handle< Graphic3d_IndexBuffer > &	theIndices,
		const Handle< Graphic3d_Buffer > &	theAttribs,
		const Handle< Graphic3d_BoundBuffer > &	theBounds
	)

Initialize indices, attributes and bounds with new data.

void OpenGl_PrimitiveArray::Invalidate ( ) const

inline

Invalidate VBO content without destruction.

Standard_Boolean OpenGl_PrimitiveArray::IsInitialized ( ) const

inline

Return true if VBOs initialization has been performed. VBO initialization is performed during first Render() call. Notice that this flag does not indicate VBOs validity.

virtual void OpenGl_PrimitiveArray::Release ( OpenGl_Context *  theContext )

virtual

Release OpenGL resources (VBOs)

Implements OpenGl_Element.

virtual void OpenGl_PrimitiveArray::Render ( const Handle< OpenGl_Workspace > &  theWorkspace ) const

virtual

Render primitives to the window.

Implements OpenGl_Element.

Reimplemented in OpenGl_BackgroundArray.

Field Documentation

Handle< Graphic3d_Buffer > OpenGl_PrimitiveArray::myAttribs

mutableprotected

Handle< Graphic3d_BoundBuffer > OpenGl_PrimitiveArray::myBounds

mutableprotected

GLint OpenGl_PrimitiveArray::myDrawMode

protected

Handle< Graphic3d_IndexBuffer > OpenGl_PrimitiveArray::myIndices

mutableprotected

Standard_Boolean OpenGl_PrimitiveArray::myIsVboInit

mutableprotected

Standard_Size OpenGl_PrimitiveArray::myUID

protected

Unique ID of primitive array.

Handle< OpenGl_VertexBuffer > OpenGl_PrimitiveArray::myVboAttribs

mutableprotected

Handle< OpenGl_VertexBuffer > OpenGl_PrimitiveArray::myVboIndices

mutableprotected

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

• OpenGl_PrimitiveArray.hxx