EGL implementation of GlGraphicsContext for OpenHarmony OS. More...

#include <kanzi/platform/platform/gl/graphics_context/egl_ohos/egl_ohos_graphics_context.hpp>

Inheritance diagram for kanzi::platform::EglOhosGraphicsContext:

Public Member Functions
	EglOhosGraphicsContext (PlatformContext &platformContext, InitializationInfo &&info)
	Constructor.

bool	swapBuffers (SurfaceHandle surface) override
	GlGraphicsContext::swapBuffers() implementation.

Public Member Functions inherited from kanzi::platform::EglGraphicsContext
SurfaceHandle	createSurface (NativeSurfaceHandle windowHandle, const SurfaceProperties &properties) override
	GlGraphicsContext::createSurface() implementation.

ThreadContextHandle	createThreadContext () override
	GlGraphicsContext::createThreadContext() implementation.

bool	destroySurface (SurfaceHandle surface) override
	GlGraphicsContext::destroySurface() implementation.

void	destroyThreadContext (ThreadContextHandle context) override
	GlGraphicsContext::destroyThreadContext() implementation.

	EglGraphicsContext (PlatformContext &platformContext, InitializationInfo &&info)
	Constructor.

KZ_NO_DISCARD ApiBackendBasicInfo	getApiBackendBasicInfo () const noexcept
	Provides basic information about current API backend.

SurfaceContextHandle	getCurrentSurfaceContext () override
	GlGraphicsContext::getCurrentSurfaceContext() implementation.

void *	getGLProcAddress (const char *pName) override
	GlGraphicsContext::getGLProcAddress() implementation.

SurfaceContextHandle	getSurfaceGLContext (SurfaceHandle surface) override
	GlGraphicsContext::getSurfaceGLContext() implementation.

SurfaceProperties	getSurfaceProperties (SurfaceHandle surface) override
	GlGraphicsContext::getSurfaceProperties() implementation.

vector< SurfaceHandle >	getSurfaces (SurfaceContextHandle context) override
	GlGraphicsContext::getSurfaces() implementation.

bool	initialize () override
	GlGraphicsContext::initialize() implementation.

bool	isFeatureEnabled (PlatformFeatureId feature) const override
	GlGraphicsContext::isFeatureEnabled() implementation.

void	makeSurfaceCurrent (SurfaceHandle surface) override
	GlGraphicsContext::makeSurfaceCurrent() implementation.

void	makeThreadCurrent (ThreadContextHandle context) override
	GlGraphicsContext::makeThreadCurrent() implementation.

void	shutdown () override
	GlGraphicsContext::shutdown() implementation.

virtual	~EglGraphicsContext ()=default
	Destructor.

Public Member Functions inherited from kanzi::platform::GlGraphicsContext
template<typename Return , typename... Args>
bool	getGLProcAddressInto (function_ptr< Return, Args... > &proc, const char *pName)
	Dynamically loads a GL function pointer into specified location.

virtual	~GlGraphicsContext ()=default
	Destructor.

Protected Member Functions
KZ_NO_DISCARD GLFunctionPointers	loadGlFunctions () noexcept override
	EglGraphicsContext::loadGlFunctions() implementation.

Protected Member Functions inherited from kanzi::platform::EglGraphicsContext
KZ_NO_DISCARD PresentMode	clampToSupportedPresentMode (PresentMode mode) noexcept
	Clamps provided PresentMode to a supported subset.

virtual KZ_NO_DISCARD unique_ptr< AbstractWindowSurface >	createDummySurface (EGLPBufferSurface &&pbuffer) noexcept
	Creates the dummy surface wrapper used for surfaceless context fallback.

virtual KZ_NO_DISCARD ContextNodePtr	createEGLContext (const EGLConfig &config, ::EGLContext parentContext) noexcept
	Creates a new suitable context for provided config.

virtual KZ_NO_DISCARD unique_ptr< AbstractWindowSurface >	createWindowSurface (NativeSurfaceHandle windowHandle, const EGLConfig &config, SurfaceColorSpace colorSpace) noexcept
	Factory function to create window surface.

virtual bool	destroySurfaceInternal (SurfaceNodePtr surfaceNode) noexcept
	Destroys EGL surface.

KZ_NO_DISCARD ContextNodePtr	ensureEGLContext (const EGLConfig &config, ::EGLContext parentContext) noexcept
	Finds suitable context for provided config or creates a new one.

virtual KZ_NO_DISCARD ::EGLNativeDisplayType	fetchNativeDisplay (PlatformContext &platformContext)
	Gets a native EGL display.

KZ_NO_DISCARD ContextNodePtr	findLastUsedContext (thread::id threadId) noexcept
	Finds last context that was used on a specified thread.

KZ_NO_DISCARD const EGLDisplay &	getDisplay () const noexcept
	Gets EGL display.

KZ_NO_DISCARD const GLFunctionPointers &	getGlFunctionPointers () const noexcept
	Gets GL function pointers struct.

virtual KZ_NO_DISCARD flat_set< string_view >	getUndiscoverableEglExtensions () noexcept
	Gets extensions that platform does not report support for, but are nevertheless supported.

virtual bool	makeCurrentInternal (ContextNodePtr contextNode, SurfaceNodePtr surfaceNode) noexcept
	Makes provided context and surface current on this thread.

KZ_NO_DISCARD flat_set< string_view >	queryEglExtensions () const noexcept
	Queries supported EGL extensions.

KZ_NO_DISCARD flat_set< string_view >	queryGlExtensions () const noexcept
	Queries supported GL extensions.

virtual KZ_NO_DISCARD EGLConfig	selectEGLConfig (const SurfaceProperties &properties) noexcept
	Selects EGL config based on provided surface properties.

KZ_NO_DISCARD SurfaceColorSpace	selectSuitableColorSpace (const SurfaceProperties &properties) noexcept
	Selects suitable colorspace for specified surface properties.

void	setSwapInterval (SurfaceNodePtr surfaceNode, ContextNodePtr contextNode, ContextNodePtr lastUsedContextNode, PresentMode presentMode) noexcept
	Sets swap interval for a specified surface, while preserving current EGL context and surface.

virtual bool	setSwapIntervalForCurrentSurface (PresentMode mode) noexcept
	Sets swap interval for current surface based on present mode.

KZ_NO_DISCARD vector< EGLint >	surfaceColorSpaceToAttributes (SurfaceColorSpace colorSpace) noexcept
	Constructs EGL attributes for a specified SurfaceColorSpace.

Additional Inherited Members
Protected Types inherited from kanzi::platform::EglGraphicsContext
using	ContextContainer

using	ContextNodePtr

using	SurfaceContainer

using	SurfaceNodePtr

using	ThreadContainer

using	ThreadNodePtr

Detailed Description

EGL implementation of GlGraphicsContext for OpenHarmony OS.

Provides an OpenHarmony OS-specific override of swapBuffers().

Since: Kanzi 4.0.0; Kanzi 4.1.0 renamed from EglOhosContextApi.

Attention: This feature is experimental and is likely to change in future releases.

Constructor & Destructor Documentation

◆ EglOhosGraphicsContext()

kanzi::platform::EglOhosGraphicsContext::EglOhosGraphicsContext	(	PlatformContext &	platformContext,
		InitializationInfo &&	info )

explicit

Constructor.

Parameters

platformContext	Platform context to use.
info	Initialization info struct.

Member Function Documentation

◆ swapBuffers()

bool kanzi::platform::EglOhosGraphicsContext::swapBuffers ( SurfaceHandle surface )

overridevirtual

GlGraphicsContext::swapBuffers() implementation.

Reimplemented from kanzi::platform::EglGraphicsContext.

◆ loadGlFunctions()

KZ_NO_DISCARD GLFunctionPointers kanzi::platform::EglOhosGraphicsContext::loadGlFunctions ( )

overrideprotectedvirtualnoexcept

EglGraphicsContext::loadGlFunctions() implementation.

Reimplemented from kanzi::platform::EglGraphicsContext.

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

kanzi/platform/platform/gl/graphics_context/egl_ohos/egl_ohos_graphics_context.hpp

Public Member Functions