GlsQuadListVCT_2D Class Reference

#include <gls_quad_storage.h>

Inheritance diagram for GlsQuadListVCT_2D:

Classes
class	TextureGroup

Public Member Functions
	GlsQuadListVCT_2D ()
virtual	~GlsQuadListVCT_2D ()
void	SetTexCoords (const float x1, const float y1, const float x2, const float y2)
void	SetTexture (IFontImage *image)
void	SetColor (const glsColor &color)
void	StartBuilding ()
void	Bake (IGlsStateManager *stateManager)
void	AddQuad2D (const float x1, const float y1, const float x2, const float y2)
void	Draw (IGlsStateManager *stateManager, const bool enableColor, const bool enableTexture)
unsigned int	NumQuads ()

Static Public Attributes
static const GLuint	VERT_SIZE = sizeof( V2f )
static const void *const	VERT_OFFSET

Protected Attributes
DynamicArray< TextureGroup *, false >	_textureGroups
unsigned int	_numTextureGroups
unsigned int	_numQuads
V2f	_currentTex [4]
glsColor	_currentColor

Detailed Description

GlsQuadListVCT_2D

Constructor & Destructor Documentation

GlsQuadListVCT_2D

(

)

Default constructor

virtual ~GlsQuadListVCT_2D ( )

virtual

Destructor

Member Function Documentation

void AddQuad2D	(	const float	x1,
		const float	y1,
		const float	x2,
		const float	y2
	)

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

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

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

unsigned int NumQuads ( )

inline

Returns

Returns the number of quads in the list

void SetColor

(

const glsColor &

color

)

Set the current drawing color. When a quad is added, its vertex colors are set to the current color

Parameters

color

The color to set

void SetTexCoords	(	const float	x1,
		const float	y1,
		const float	x2,
		const float	y2
	)

Set the current texture coordinates. When a quad is added, these texture coordinates will be used. x1,y1 will map to quad vertex[0] and x2,y2 will map to quad vertex[1]

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

void SetTexture

(

IFontImage *

image

)

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

Parameters

image

The texture to set, NULL for no texture

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

glsColor _currentColor

protected

Last color that was set. Used only while building a list

V2f _currentTex[4]

protected

Current texture coordinates supplied for current quad (Texture coordinates are not required to change per quad). Used only while building list.

unsigned int _numQuads

protected

Pointer to the current texture group that quads will be added to with the next call to AddQuad Number of quads in the list (total)

unsigned int _numTextureGroups

protected

The number of textured quad groups in the list.

DynamicArray<TextureGroup*, false> _textureGroups

protected

The list of all textured quad groups.

const void* const VERT_OFFSET

static

Constant offsets to the primitive vertex attributes.

Note

Strange casting is to support OpenGL's repurposed functions that pass offsets as pointers.

const GLuint VERT_SIZE = sizeof( V2f )

static

Constant sizes of the primitive vertex attributes

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

• gls_quad_storage.h