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

#include <OpenGl_PrimitiveArray.hxx>

Inheritance diagram for OpenGl_PrimitiveArray:

[legend]

Public Types
enum	{ DRAW_MODE_NONE = -1 }
	OpenGL does not provide a constant for "none" draw mode. So we define our own one that does not conflict with GL constants and utilizes common GL invalid value. More...

Public Member Functions
	OpenGl_PrimitiveArray (const OpenGl_GraphicDriver *theDriver)
	Empty constructor.
	OpenGl_PrimitiveArray (const OpenGl_GraphicDriver *theDriver, const Graphic3d_TypeOfPrimitiveArray theType, const occ::handle< Graphic3d_IndexBuffer > &theIndices, const occ::handle< Graphic3d_Buffer > &theAttribs, const occ::handle< Graphic3d_BoundBuffer > &theBounds)
	Default constructor.
	~OpenGl_PrimitiveArray () override
	Destructor.
void	Render (const occ::handle< OpenGl_Workspace > &theWorkspace) const override
	Render primitives to the window.
void	Release (OpenGl_Context *theContext) override
	Release OpenGL resources (VBOs).
size_t	EstimatedDataSize () const override
	Returns estimated GPU memory usage for holding data without considering overheads and allocation alignment rules.
void	UpdateDrawStats (Graphic3d_FrameStatsDataTmp &theStats, bool theIsDetailed) const override
	Increment draw calls statistics.
bool	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.
void	Invalidate () const
	Invalidate VBO content without destruction.
int	DrawMode () const
bool	IsFillDrawMode () const override
	Return TRUE if primitive type generates shaded triangulation.
const occ::handle< Graphic3d_IndexBuffer > &	Indices () const
const occ::handle< Graphic3d_Buffer > &	Attributes () const
const occ::handle< Graphic3d_BoundBuffer > &	Bounds () const
size_t	GetUID () const
	Returns unique ID of primitive array.
void	InitBuffers (const occ::handle< OpenGl_Context > &theContext, const Graphic3d_TypeOfPrimitiveArray theType, const occ::handle< Graphic3d_IndexBuffer > &theIndices, const occ::handle< Graphic3d_Buffer > &theAttribs, const occ::handle< Graphic3d_BoundBuffer > &theBounds)
	Initialize indices, attributes and bounds with new data.
const occ::handle< OpenGl_IndexBuffer > &	IndexVbo () const
	Returns index VBO.
const occ::handle< OpenGl_VertexBuffer > &	AttributesVbo () const
	Returns attributes VBO.
void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const override
	Dumps the content of me into the stream.
Public Member Functions inherited from OpenGl_Element
	OpenGl_Element ()
virtual void	UpdateMemStats (Graphic3d_FrameStatsDataTmp &theStats) const
	Increment memory usage statistics. Default implementation puts EstimatedDataSize() into Graphic3d_FrameStatsCounter_EstimatedBytesGeom.
virtual void	SynchronizeAspects ()
	Update parameters of the drawable elements.

Protected Member Functions
bool	buildVBO (const occ::handle< OpenGl_Context > &theCtx, const bool theToKeepData) const
	VBO initialization procedures.
void	updateVBO (const occ::handle< OpenGl_Context > &theCtx) const
	Patch VBO sub-date within invalidated range.
void	clearMemoryGL (const occ::handle< OpenGl_Context > &theGlCtx) const
	Release GL memory.
Protected Member Functions inherited from OpenGl_Element
virtual	~OpenGl_Element ()

Protected Attributes
occ::handle< OpenGl_IndexBuffer >	myVboIndices
occ::handle< OpenGl_VertexBuffer >	myVboAttribs
occ::handle< Graphic3d_IndexBuffer >	myIndices
occ::handle< Graphic3d_Buffer >	myAttribs
occ::handle< Graphic3d_BoundBuffer >	myBounds
short	myDrawMode
bool	myIsFillType
bool	myIsVboInit
size_t	myUID
	Unique ID of primitive array.

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.

Detailed Description

Class for rendering of arbitrary primitive array.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

OpenGL does not provide a constant for "none" draw mode. So we define our own one that does not conflict with GL constants and utilizes common GL invalid value.

Enumerator
DRAW_MODE_NONE

Constructor & Destructor Documentation

◆ OpenGl_PrimitiveArray() [1/2]

OpenGl_PrimitiveArray::OpenGl_PrimitiveArray ( const OpenGl_GraphicDriver * theDriver )

Empty constructor.

◆ OpenGl_PrimitiveArray() [2/2]

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

Default constructor.

◆ ~OpenGl_PrimitiveArray()

OpenGl_PrimitiveArray::~OpenGl_PrimitiveArray ( )

override

Destructor.

Member Function Documentation

◆ Attributes()

const occ::handle< Graphic3d_Buffer > & OpenGl_PrimitiveArray::Attributes ( ) const

inline

Returns: attributes array

◆ AttributesVbo()

const occ::handle< OpenGl_VertexBuffer > & OpenGl_PrimitiveArray::AttributesVbo ( ) const

inline

Returns attributes VBO.

◆ Bounds()

const occ::handle< Graphic3d_BoundBuffer > & OpenGl_PrimitiveArray::Bounds ( ) const

inline

Returns: bounds array

◆ buildVBO()

bool OpenGl_PrimitiveArray::buildVBO	(	const occ::handle< OpenGl_Context > &	theCtx,
		const bool	theToKeepData ) const

protected

VBO initialization procedures.

Parameters

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

◆ clearMemoryGL()

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

protected

Release GL memory.

◆ DrawMode()

int OpenGl_PrimitiveArray::DrawMode ( ) const

inline

Returns: primitive type (GL_LINES, GL_TRIANGLES and others)

◆ DumpJson()

void OpenGl_PrimitiveArray::DumpJson	(	Standard_OStream &	theOStream,
		int	theDepth = -1 ) const

overridevirtual

Dumps the content of me into the stream.

Reimplemented from OpenGl_Element.

◆ EstimatedDataSize()

size_t OpenGl_PrimitiveArray::EstimatedDataSize ( ) const

overridevirtual

Returns estimated GPU memory usage for holding data without considering overheads and allocation alignment rules.

Reimplemented from OpenGl_Element.

◆ GetUID()

size_t OpenGl_PrimitiveArray::GetUID ( ) const

inline

Returns unique ID of primitive array.

◆ IndexVbo()

const occ::handle< OpenGl_IndexBuffer > & OpenGl_PrimitiveArray::IndexVbo ( ) const

inline

Returns index VBO.

◆ Indices()

const occ::handle< Graphic3d_IndexBuffer > & OpenGl_PrimitiveArray::Indices ( ) const

inline

Returns: indices array

◆ InitBuffers()

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

Initialize indices, attributes and bounds with new data.

◆ Invalidate()

void OpenGl_PrimitiveArray::Invalidate ( ) const

inline

Invalidate VBO content without destruction.

◆ IsFillDrawMode()

bool OpenGl_PrimitiveArray::IsFillDrawMode ( ) const

inlineoverridevirtual

Return TRUE if primitive type generates shaded triangulation.

Reimplemented from OpenGl_Element.

◆ IsInitialized()

bool 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.

◆ Release()

void OpenGl_PrimitiveArray::Release ( OpenGl_Context * theContext )

overridevirtual

Release OpenGL resources (VBOs).

Implements OpenGl_Element.

◆ Render()

void OpenGl_PrimitiveArray::Render ( const occ::handle< OpenGl_Workspace > & theWorkspace ) const

overridevirtual

Render primitives to the window.

Implements OpenGl_Element.

◆ UpdateDrawStats()

void OpenGl_PrimitiveArray::UpdateDrawStats	(	Graphic3d_FrameStatsDataTmp &	theStats,
		bool	theIsDetailed ) const

overridevirtual

Increment draw calls statistics.

Reimplemented from OpenGl_Element.

◆ updateVBO()

void OpenGl_PrimitiveArray::updateVBO ( const occ::handle< OpenGl_Context > & theCtx ) const

protected

Patch VBO sub-date within invalidated range.

Field Documentation

◆ myAttribs

occ::handle<Graphic3d_Buffer> OpenGl_PrimitiveArray::myAttribs

mutableprotected

◆ myBounds

occ::handle<Graphic3d_BoundBuffer> OpenGl_PrimitiveArray::myBounds

mutableprotected

◆ myDrawMode

short OpenGl_PrimitiveArray::myDrawMode

protected

◆ myIndices

occ::handle<Graphic3d_IndexBuffer> OpenGl_PrimitiveArray::myIndices

mutableprotected

◆ myIsFillType

bool OpenGl_PrimitiveArray::myIsFillType

mutableprotected

◆ myIsVboInit

bool OpenGl_PrimitiveArray::myIsVboInit

mutableprotected

◆ myUID

size_t OpenGl_PrimitiveArray::myUID

protected

Unique ID of primitive array.

◆ myVboAttribs

occ::handle<OpenGl_VertexBuffer> OpenGl_PrimitiveArray::myVboAttribs

mutableprotected

◆ myVboIndices

occ::handle<OpenGl_IndexBuffer> OpenGl_PrimitiveArray::myVboIndices

mutableprotected

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

OpenGl_PrimitiveArray.hxx

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ OpenGl_PrimitiveArray() [1/2]

◆ OpenGl_PrimitiveArray() [2/2]

◆ ~OpenGl_PrimitiveArray()

Member Function Documentation

◆ Attributes()

◆ AttributesVbo()

◆ Bounds()

◆ buildVBO()

◆ clearMemoryGL()

◆ DrawMode()

◆ DumpJson()

◆ EstimatedDataSize()

◆ GetUID()

◆ IndexVbo()

◆ Indices()

◆ InitBuffers()

◆ Invalidate()

◆ IsFillDrawMode()

◆ IsInitialized()

◆ Release()

◆ Render()

◆ UpdateDrawStats()

◆ updateVBO()

Field Documentation

◆ myAttribs

◆ myBounds

◆ myDrawMode

◆ myIndices

◆ myIsFillType

◆ myIsVboInit

◆ myUID

◆ myVboAttribs

◆ myVboIndices