Carna::base::IndexBufferBase Class Reference

Maintains GL_ELEMENT_ARRAY_BUFFER object that holds the vertex indices, that interconnect the vertices to primitives. This class realizes the RAII-idiom. More...

#include <IndexBuffer.h>

Inheritance diagram for Carna::base::IndexBufferBase:

Collaboration diagram for Carna::base::IndexBufferBase:

Public Member Functions
	IndexBufferBase (unsigned int type, unsigned int primitiveType)
	Creates GL_ELEMENT_ARRAY_BUFFER object. More...
Public Member Functions inherited from Carna::base::BaseBuffer
virtual	~BaseBuffer ()
	Deletes the maintained OpenGL buffer object.
std::size_t	size () const
	Tells the previously set size of the maintained buffer object.
void	bind () const
	Invokes glBindBuffer to bind the maintained buffer object to target.
bool	isValid () const
	Tells whether the buffer object was marked as valid.

Public Attributes
const unsigned int	type
	Holds the element type of the maintained OpenGL buffer object.
const unsigned int	primitiveType
	Holds how the indexed vertices do interconnect to primitives.
Public Attributes inherited from Carna::base::BaseBuffer
const unsigned int	target
	Holds where the maintained buffer object is to be bound to by glBindBuffer.
const unsigned int	id
	Holds the ID of the maintained OpenGL buffer object.

Static Public Attributes
static const unsigned int	TYPE_UINT_8
	Indicates uint8_t element type.
static const unsigned int	TYPE_UINT_16
	Indicates uint16_t element type.
static const unsigned int	TYPE_UINT_32
	Indicates uint32_t element type.
static const unsigned int	PRIMITIVE_TYPE_TRIANGLES
	Draws triangles. Indicates that the indices \(3i+k, k \in \left\{0,1,2\right\}\) make up the \(i\)th triangle with \(i \geq 2\).
static const unsigned int	PRIMITIVE_TYPE_TRIANGLE_STRIP
	Draws triangles. Indicates that the indices \(i-k, k \in \left\{0,1,2\right\}\) make up the \(i\)th triangle with \(i \geq 2\).
static const unsigned int	PRIMITIVE_TYPE_TRIANGLE_FAN
	Draws triangles. Indicates that the indices \(0, i-2, i-1\) make up the \(i\)th triangle with \(i \geq 2\).
static const unsigned int	PRIMITIVE_TYPE_LINES
	Draws lines. Indicates that the indices \(2i, 2i-1\) make up the \(i\)th line segment with \(i \geq 1\).
static const unsigned int	PRIMITIVE_TYPE_LINE_STRIP
	Draws lines. Indicates that the indices \(i, i-1\) make up a the \(i\)th line segment with \(i \geq 1\).
static const unsigned int	PRIMITIVE_TYPE_LINE_LOOP
	Draws lines. Indicates that the indices \(i, i-1\) make up the \(i\)th line segment. Another line segment from the last to the first index is added automatically.
static const unsigned int	PRIMITIVE_TYPE_POINTS
	Draws points. Indicates that each index makes up a single point.

Protected Member Functions
void	copy (const void *bufferPtr, std::size_t bufferSize, std::size_t indicesCount)
	Copies indicesCount indices referenced by bufferPtr to the maintained index buffer object.
Protected Member Functions inherited from Carna::base::BaseBuffer
	BaseBuffer (unsigned int target)
	Acquires new OpenGL buffer object. More...
void	setSize (std::size_t size)
	Sets the size of the maintained buffer object.

Additional Inherited Members
Protected Attributes inherited from Carna::base::BaseBuffer
bool	valid
	Flag that indicates whether the maintained OpenGL buffer object is valid.

Detailed Description

Maintains GL_ELEMENT_ARRAY_BUFFER object that holds the vertex indices, that interconnect the vertices to primitives. This class realizes the RAII-idiom.

Author

Leonid Kostrykin

Date

1.9.14 - 14.3.15

Definition at line 43 of file IndexBuffer.h.

Constructor & Destructor Documentation

IndexBufferBase()

Carna::base::IndexBufferBase::IndexBufferBase	(	unsigned int	type,
		unsigned int	primitiveType
	)

Creates GL_ELEMENT_ARRAY_BUFFER object.

Parameters

type	indicates the element type of the maintained OpenGL buffer object.
primitiveType	indicates how primitives should be assembled from the vertices indexed by this buffer.

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

• include/Carna/base/IndexBuffer.h