tgui::BackendRendererGLES2 Class Reference

Backend renderer that uses OpenGL ES 2 or 3 (depending on the loaded OpenGL ES context that you have to provide) More...

#include <TGUI/Backend/Renderer/GLES2/BackendRendererGLES2.hpp>

Inheritance diagram for tgui::BackendRendererGLES2:

Public Types
using	ContextLoadFuncReturnType = void (*)()
using	ContextLoadFuncType = ContextLoadFuncReturnType (*)(const char *name)
using	SDLContextLoadFuncType = void* (*)(const char *name)

Public Member Functions
	BackendRendererGLES2 (ContextLoadFuncType contextLoadFunction)
	Initializes the backend renderer. This will initialize GLAD to use OpenGL ES.
	BackendRendererGLES2 (SDLContextLoadFuncType contextLoadFunction)
	Helper constructor so that you can pass SDL_GL_GetProcAddress without needing to cast the type.
std::shared_ptr< BackendTexture >	createTexture () override
	Creates a new empty texture object.
unsigned int	getMaximumTextureSize () override
	Get the maximum allowed texture size.
Public Member Functions inherited from tgui::BackendRenderer
virtual	~BackendRenderer ()=default
	Virtual destructor.
virtual std::shared_ptr< BackendText >	createText ()
	Creates a new empty text object.

Detailed Description

Backend renderer that uses OpenGL ES 2 or 3 (depending on the loaded OpenGL ES context that you have to provide)

Constructor & Destructor Documentation

BackendRendererGLES2() [1/2]

tgui::BackendRendererGLES2::BackendRendererGLES2

(

ContextLoadFuncType

contextLoadFunction

)

Initializes the backend renderer. This will initialize GLAD to use OpenGL ES.

Parameters

contextLoadFunction

Function that gets the address of an OpenGL function

Examples of load functions are sf::Context::getFunction, SDL_GL_GetProcAddress and glfwGetProcAddress.

Example usage:

backend->setRenderer(std::make_shared<BackendRendererGLES2>(glfwGetProcAddress));

BackendRendererGLES2() [2/2]

tgui::BackendRendererGLES2::BackendRendererGLES2

(

SDLContextLoadFuncType

contextLoadFunction

)

Helper constructor so that you can pass SDL_GL_GetProcAddress without needing to cast the type.

See also

BackendRendererGLES2(ContextLoadFuncType)

Parameters

contextLoadFunction

Function that gets the address of an OpenGL function

Member Function Documentation

createTexture()

std::shared_ptr< BackendTexture > tgui::BackendRendererGLES2::createTexture ( )

nodiscardoverridevirtual

Creates a new empty texture object.

Returns

Shared pointer to a new texture object

Implements tgui::BackendRenderer.

getMaximumTextureSize()

unsigned int tgui::BackendRendererGLES2::getMaximumTextureSize ( )

nodiscardoverridevirtual

Get the maximum allowed texture size.

Returns

Maximum width and height that you should try to use in a single texture

This maximum size is defined by the graphics driver. Most likely this will return 8192 or 16384.

Implements tgui::BackendRenderer.

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

• include/TGUI/Backend/Renderer/GLES2/BackendRendererGLES2.hpp