GlsQuadListVCT_2D::TextureGroup Class Reference

#include <gls_quad_storage.h>

Inheritance diagram for GlsQuadListVCT_2D::TextureGroup:

Public Member Functions
	TextureGroup ()
virtual	~TextureGroup ()
void	SetTexture (IFontImage *texture)
IFontImage *	GetTexture ()
void	StartBuilding ()
void	Bake (IGlsStateManager *stateManager)
void	AddQuad2D (const float x1, const float y1, const float x2, const float y2, const V2f tex[], const glsColor &color)
void	Draw (IGlsStateManager *stateManager, const bool enableColor, const bool enableTexture)

Protected Member Functions
void	AllocateNextQuad ()
	Called by AddQuad methods to internally allocate the next quad.

Protected Attributes
unsigned int	_numQuads
DynamicArray< V2f_T2f_C4ub, true >	_vertData
DynamicArray< GLushort, true >	_indices
IFontImage *	_texture
unsigned int	_vboHandle
unsigned int	_indexBufferHandle
unsigned int	_vboBufferSize

Detailed Description

The TextureGroup class. Holds a number of textured quads.

Constructor & Destructor Documentation

TextureGroup()

TextureGroup

(

)

Default constructor

~TextureGroup()

virtual ~TextureGroup ( )

virtual

Destructor

Member Function Documentation

AddQuad2D()

void AddQuad2D	(	const float	x1,
		const float	y1,
		const float	x2,
		const float	y2,
		const V2f	tex[],
		const glsColor &	color
	)

Add a quad defined by a 2D rectangle from x1,y1 to x2,y2

Parameters

x1	X coord of point 1
y1	Y coord of point 1
x2	X coord of point 2
y2	Y coord of point 2
tex	texture coordinates
color	color of the quad points

Bake()

void Bake

(

IGlsStateManager *

stateManager

)

Bakes the quad list, creating VBOs within the GL context. The VBOs created by Bake are used when the object is later drawn with Draw

Parameters

stateManager

The StateManager object to create the VBOs within

Draw()

void Draw	(	IGlsStateManager *	stateManager,
		const bool	enableColor,
		const bool	enableTexture
	)

Draws this quad list

Parameters

stateManager	OpenGL context to draw list in
enableColor	Whether or not to use the per vertex colors when drawing
enableTexture	Whether or not to use the texture when drawing

GetTexture()

IFontImage * GetTexture

(

)

Get the current texture. This texture will be used when drawing the quad list (if not NULL)

Returns

The texture to set, NULL for no texture

SetTexture()

void SetTexture

(

IFontImage *

texture

)

Set the current texture. This texture will be used when drawing the quad list (if not NULL)

Parameters

texture

The texture to set, NULL for no texture

StartBuilding()

void StartBuilding

(

)

Put the quad list in list building mode. Process for using this quad list:

1. Build the list
2. Bake the list (creates VBOs)
3. Draw the list

Member Data Documentation

_indexBufferHandle

unsigned int _indexBufferHandle

protected

Index buffer Handle for this quad storage

_indices

DynamicArray<GLushort, true> _indices

protected

Indices for the quad list

_numQuads

unsigned int _numQuads

protected

Number of quads in the list

_texture

IFontImage* _texture

protected

Texture to use when drawing quad storage. NULL if untextured

_vboBufferSize

unsigned int _vboBufferSize

protected

Size of the VBO buffer. Cached to so that when a quad is cleared and reset we will only reallocate the VBO when its size changes.

_vboHandle

unsigned int _vboHandle

protected

VBO Handle for this quad storage

_vertData

DynamicArray<V2f_T2f_C4ub, true> _vertData

protected

Vertices for the quad list

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

• gls_quad_storage.h