oe::core::OpenGL Class Reference

OpenGL renderer. More...

#include <OxygenEngine/core/renderer/opengl.h>

Inheritance diagram for oe::core::OpenGL:

Collaboration diagram for oe::core::OpenGL:

Public Member Functions
	OpenGL (Window *context_holder)
	Constructor.
void	resizeViewport (const int32_t x, const int32_t y, const int32_t width, const int32_t height)
	Resize screen viewport.
void	scissor (uint32_t x, uint32_t y, uint32_t width, uint32_t height)
	Define the scissor area Only allow draws in this area, other draw calls are discarded.
std::shared_ptr< render::ScreenQuad >	getScreenQuad ()
	Get a screen covering quad render mesh for screen rendering.
const Window &	getWindow () const noexcept
	Get a reference to the Window bound to the context.
void	bindContextToWindow (Window &window)
	Bind the OpenGL to a Window.

Static Public Member Functions
static OpenGL *	getInstance ()
	Get the OpenGL instance related to this thread.
static bool	hasContext ()
	Check if this thread has an OpenGL context.

Protected Attributes
std::shared_ptr< render::ScreenQuad >	_screen_quad
	Mesh covering whole screen mainly used for post-processing.

Additional Inherited Members
Protected Member Functions inherited from oe::util::NonCopyable
	NonCopyable (NonCopyable &&)=default
NonCopyable &	operator= (NonCopyable &&)=default

Detailed Description

OpenGL renderer.

Note

Should extends Renderer

Constructor & Destructor Documentation

OpenGL()

oe::core::OpenGL::OpenGL

(

Window *

context_holder

)

Constructor.

Parameters

context_holder

Window to bind to this context

Member Function Documentation

bindContextToWindow()

void oe::core::OpenGL::bindContextToWindow

(

Window &

window

)

Bind the OpenGL to a Window.

Parameters

window

The Window to bind

getInstance()

static OpenGL * oe::core::OpenGL::getInstance ( )

inlinestatic

Get the OpenGL instance related to this thread.

Returns

OpenGL instance related to this thread or null if no one has been init

getScreenQuad()

std::shared_ptr< render::ScreenQuad > oe::core::OpenGL::getScreenQuad ( )

inline

Get a screen covering quad render mesh for screen rendering.

Returns

Pointer to the screen quad

getWindow()

const Window & oe::core::OpenGL::getWindow ( ) const

inlinenoexcept

Get a reference to the Window bound to the context.

Returns

Window bound to the context

hasContext()

static bool oe::core::OpenGL::hasContext ( )

inlinestatic

Check if this thread has an OpenGL context.

Returns

true if this thread has an OpenGL context

resizeViewport()

void oe::core::OpenGL::resizeViewport	(	const int32_t	x,
		const int32_t	y,
		const int32_t	width,
		const int32_t	height
	)

Resize screen viewport.

Parameters

x	Lower left corner x value of the viewport rectangle, in pixels
y	Lower left corner y value of the viewport rectangle, in pixels
width	viewport width, in pixels
height	viewport height, in pixels

scissor()

void oe::core::OpenGL::scissor	(	uint32_t	x,
		uint32_t	y,
		uint32_t	width,
		uint32_t	height
	)

Define the scissor area Only allow draws in this area, other draw calls are discarded.

Parameters

x	Lower left corner x value of the scissor rectangle, in pixels
y	Lower left corner y value of the scissor rectangle, in pixels
width	scissor width, in pixels
height	scissor height, in pixels

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

• OxygenEngine/core/renderer/opengl.h