Graphics::Mesh::MeshFont Class Reference

#include <meshfont.h>

Inheritance diagram for Graphics::Mesh::MeshFont:

Collaboration diagram for Graphics::Mesh::MeshFont:

Public Member Functions
	MeshFont ()
void	render (float *pos, float *uv, float *rgba)
	Dynamic data prior to render call. More...
Public Member Functions inherited from Graphics::Mesh::Mesh
	Mesh (GLuint type=GL_TRIANGLES, GLuint hint=GL_STATIC_DRAW)
	~Mesh ()
VertexBuffer *	getVertexBuffer ()
IndexBuffer *	getIndexBuffer ()
void	setName (const Common::UString &name)
const Common::UString &	getName () const
void	setType (GLuint type)
GLuint	getType () const
void	setHint (GLuint hint)
GLuint	getHint () const
void	init ()
	General mesh initialisation, queuing the mesh for GL resource creation. More...
void	initGL ()
void	updateGL ()
void	destroyGL ()
void	renderImmediate ()
void	renderBind ()
	Follows the steps of renderImmediate, but broken into different functions. More...
void	render ()
void	renderUnbind ()
void	useIncrement ()
void	useDecrement ()
uint32	useCount () const
const glm::vec3 &	getCentre () const
float	getRadius () const
Public Member Functions inherited from Graphics::GLContainer
	GLContainer ()
	~GLContainer ()
void	rebuild ()
void	destroy ()
Public Member Functions inherited from Graphics::Queueable
	Queueable ()
virtual	~Queueable ()
virtual bool	operator< (const Queueable &q) const

Additional Inherited Members
Protected Member Functions inherited from Graphics::Mesh::Mesh
virtual void	doRebuild ()
	Initialise GL components with data taken from vertex buffers. More...
virtual void	doDestroy ()
	Free GL resources. More...
Protected Member Functions inherited from Graphics::Queueable
bool	isInQueue (QueueType queue) const
void	addToQueue (QueueType queue)
void	removeFromQueue (QueueType queue)
void	lockQueue (QueueType queue)
void	unlockQueue (QueueType queue)
void	sortQueue (QueueType queue)
Protected Attributes inherited from Graphics::Mesh::Mesh
VertexBuffer	_vertexBuffer
IndexBuffer	_indexBuffer
GLuint	_type
GLuint	_hint

Detailed Description

Definition at line 34 of file meshfont.h.

Constructor & Destructor Documentation

MeshFont()

Graphics::Mesh::MeshFont::MeshFont

(

)

Definition at line 31 of file meshfont.cpp.

References Graphics::Mesh::Mesh::_vertexBuffer, Graphics::VertexBuffer::getData(), Graphics::VertexBuffer::setSize(), Graphics::VertexBuffer::setVertexDeclLinear(), Graphics::VCOLOR, Graphics::VPOSITION, and Graphics::VTCOORD.

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Member Function Documentation

render()

void Graphics::Mesh::MeshFont::render	(	float *	pos,
		float *	uv,
		float *	rgba
	)

Dynamic data prior to render call.

This is somewhat simpler than the normal mesh rendering method. There are not indices into the vertex array, so that can be stripped out. It's also assumed that GL_ARRAY_BUFFER is bound, so it can be overwritten entirely with dynamic data. This is the same between GL3 and GL2, so there's no need to check for that.

Also note that this is really a most inefficient way of updating the vertex buffer. Basically creating all vertices on the stack, passing them in here to be copied into an internal vertex buffer, and then updating that internal buffer to server side resources. It could happily be updated directly from stack values.

Alternatively, sub-allocating from a very large pool of vertices and then using an offset (index value start) for the actual draw call is an even better way of doing things. Most text doesn't change per-frame.

Definition at line 96 of file meshfont.cpp.

References Graphics::Mesh::Mesh::_type, Graphics::Mesh::Mesh::_vertexBuffer, Graphics::VertexBuffer::getCount(), Graphics::VertexBuffer::getData(), and Graphics::VertexBuffer::updateGLBound().

Referenced by Graphics::Aurora::ABCFont::render(), and Graphics::Aurora::TextureFont::render().

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

• src/graphics/mesh/meshfont.h
• src/graphics/mesh/meshfont.cpp