mbgl::gl::RendererBackend Class Reference

#include <renderer_backend.hpp>

Inheritance diagram for mbgl::gl::RendererBackend:

Public Member Functions
	RendererBackend (gfx::ContextMode)
	~RendererBackend () override
virtual void	updateAssumedState ()=0
	Called prior to rendering to update the internally assumed OpenGL state. More...
void	setFramebufferBinding (FramebufferID fbo)
void	setViewport (int32_t x, int32_t y, const Size &)
void	setScissorTest (bool)
Public Member Functions inherited from mbgl::gfx::RendererBackend
	RendererBackend (const RendererBackend &)=delete
RendererBackend &	operator= (const RendererBackend &)=delete
Context &	getContext ()
	Returns the device's context. More...
template<typename T >
T &	getContext ()
bool	contextIsShared () const
virtual Renderable &	getDefaultRenderable ()=0
	Returns a reference to the default surface that should be rendered on. More...

Protected Member Functions
std::unique_ptr< gfx::Context >	createContext () override
virtual ProcAddress	getExtensionFunctionPointer (const char *)=0
PremultipliedImage	readFramebuffer (const Size &)
	Reads the color pixel data from the currently bound framebuffer. More...
void	assumeFramebufferBinding (FramebufferID fbo)
void	assumeViewport (int32_t x, int32_t y, const Size &)
void	assumeScissorTest (bool)
bool	implicitFramebufferBound ()
	Returns true when assumed framebuffer binding hasn't changed from the implicit binding. More...
Protected Member Functions inherited from mbgl::gfx::RendererBackend
	RendererBackend (ContextMode)
virtual void	activate ()=0
virtual void	deactivate ()=0

Static Protected Attributes
static constexpr const FramebufferID	ImplicitFramebufferBinding
	A constant to signal that a framebuffer is bound, but with an unknown ID. More...

Additional Inherited Members
Protected Attributes inherited from mbgl::gfx::RendererBackend
std::unique_ptr< Context >	context
const ContextMode	contextMode
std::once_flag	initialized

Detailed Description

Definition at line 14 of file renderer_backend.hpp.

Constructor & Destructor Documentation

RendererBackend()

mbgl::gl::RendererBackend::RendererBackend

(

gfx::ContextMode

)

~RendererBackend()

mbgl::gl::RendererBackend::~RendererBackend ( )

overridevirtual

Reimplemented from mbgl::gfx::RendererBackend.

Member Function Documentation

assumeFramebufferBinding()

void mbgl::gl::RendererBackend::assumeFramebufferBinding ( FramebufferID  fbo )

protected

Tells the renderer that OpenGL state has already been set by the windowing toolkit. It sets the internal assumed state to the supplied values.

assumeScissorTest()

void mbgl::gl::RendererBackend::assumeScissorTest ( bool  )

protected

assumeViewport()

void mbgl::gl::RendererBackend::assumeViewport ( int32_t  x, int32_t  y, const Size &    )

protected

createContext()

std::unique_ptr<gfx::Context> mbgl::gl::RendererBackend::createContext ( )

overrideprotectedvirtual

Implements mbgl::gfx::RendererBackend.

getExtensionFunctionPointer()

virtual ProcAddress mbgl::gl::RendererBackend::getExtensionFunctionPointer ( const char *  )

protectedpure virtual

Called with the name of an OpenGL extension that should be loaded. RendererBackend implementations must call the API-specific version that obtains the function pointer for this function, or a null pointer if unsupported/unavailable.

implicitFramebufferBound()

bool mbgl::gl::RendererBackend::implicitFramebufferBound ( )

protected

Returns true when assumed framebuffer binding hasn't changed from the implicit binding.

readFramebuffer()

PremultipliedImage mbgl::gl::RendererBackend::readFramebuffer ( const Size &  )

protected

Reads the color pixel data from the currently bound framebuffer.

setFramebufferBinding()

void mbgl::gl::RendererBackend::setFramebufferBinding

(

FramebufferID

fbo

)

Triggers an OpenGL state update if the internal assumed state doesn't match the supplied values.

setScissorTest()

void mbgl::gl::RendererBackend::setScissorTest

(

bool

)

setViewport()

void mbgl::gl::RendererBackend::setViewport	(	int32_t	x,
		int32_t	y,
		const Size &
	)

updateAssumedState()

virtual void mbgl::gl::RendererBackend::updateAssumedState ( )

pure virtual

Called prior to rendering to update the internally assumed OpenGL state.

Member Data Documentation

ImplicitFramebufferBinding

constexpr const FramebufferID mbgl::gl::RendererBackend::ImplicitFramebufferBinding

staticconstexprprotected

Initial value:

=
        std::numeric_limits<FramebufferID>::max()

A constant to signal that a framebuffer is bound, but with an unknown ID.

Definition at line 34 of file renderer_backend.hpp.

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

• /home/runner/work/maplibre-native/maplibre-native/include/mbgl/gl/renderer_backend.hpp