#include <kanzi/core.ui/platform/graphics_backend/gl/gl_graphics_output.hpp>

Inheritance diagram for kanzi::GLGraphicsOutput:

Public Types
using	GLProcPointer = void(*)()
	Pointer to GL function. More...

Public Member Functions
virtual KZ_NO_DISCARD optional< void * >	createImage (int target, void data, int attributes) noexcept=0
	Function for creating native image object, which can be shared between client APIs. More...

virtual bool	destroyImage (void *image) noexcept=0
	Function for destroying native image object. More...

virtual KZ_NO_DISCARD optional< SurfaceColorSpace >	getColorSpace () const noexcept=0
	Gets the color space used by the associated graphics context. More...

virtual KZ_NO_DISCARD optional< GraphicsContextAPI >	getGraphicsContextAPI () const noexcept=0
	Gets the API used by the associated graphics context. More...

virtual KZ_NO_DISCARD optional< void * >	getNativeContextHandle () const noexcept=0
	Gets associated native GL context handle. More...

virtual KZ_NO_DISCARD optional< void * >	getNativeDisplayHandle () const noexcept=0
	Gets associated native GL display handle. More...

virtual KZ_NO_DISCARD optional< void * >	getNativeSurfaceHandle () const noexcept=0
	Gets associated native GL surface handle. More...

virtual KZ_NO_DISCARD GLProcPointer	getProcAddress (string_view functionName)=0
	Retrieves pointer to GL function. More...

virtual KZ_NO_DISCARD optional< SurfaceClientAPI >	getSurfaceClientAPI () const noexcept=0
	Gets the type of the associated graphics surface. More...

virtual KZ_NO_DISCARD Matrix4x4	getTargetTransformation () const noexcept=0
	Returns the target transformation. More...

virtual bool	makeCurrent ()=0
	Makes the graphics output active for the current thread. More...

virtual bool	releaseCurrent ()=0
	Makes the currently active graphics output inactive for the current thread. More...

virtual bool	swapBuffers ()=0
	Posts rendering results. More...

virtual bool	swapInterval (int interval)=0
	Sets the minimum number of frames per buffer swap. More...

virtual	~GLGraphicsOutput ()=default
	Destructor. More...

Detailed Description

GLGraphicsOutput class.

Interface defining basic functionality used by the GL renderer.

Member Typedef Documentation

◆ GLProcPointer

using kanzi::GLGraphicsOutput::GLProcPointer = void (*)()

Pointer to GL function.

Constructor & Destructor Documentation

◆ ~GLGraphicsOutput()

virtual kanzi::GLGraphicsOutput::~GLGraphicsOutput ( )

virtualdefault

Destructor.

Member Function Documentation

◆ getProcAddress()

virtual KZ_NO_DISCARD GLProcPointer kanzi::GLGraphicsOutput::getProcAddress ( string_view functionName )

pure virtual

Retrieves pointer to GL function.

Parameters

functionName Name of the function.

Returns: Pointer to the function, or null if not found.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ makeCurrent()

virtual bool kanzi::GLGraphicsOutput::makeCurrent ( )

pure virtual

Makes the graphics output active for the current thread.

Returns: True, on success.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ releaseCurrent()

virtual bool kanzi::GLGraphicsOutput::releaseCurrent ( )

pure virtual

Makes the currently active graphics output inactive for the current thread.

Returns: True, on success.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ swapBuffers()

virtual bool kanzi::GLGraphicsOutput::swapBuffers ( )

pure virtual

Posts rendering results.

Implicitly flushes the rendering pipeline and executes all received rendering commands before posting.

See also: swapInterval().

Returns: True, on success.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ swapInterval()

virtual bool kanzi::GLGraphicsOutput::swapInterval ( int interval )

pure virtual

Sets the minimum number of frames per buffer swap.

See also: swapBuffers().

Parameters

interval The minimum number of video frame periods per buffer swap. Negative interval values are reserved for platform-specific special cases.

Returns: True, on success.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ getTargetTransformation()

virtual KZ_NO_DISCARD Matrix4x4 kanzi::GLGraphicsOutput::getTargetTransformation ( ) const

pure virtualnoexcept

Returns the target transformation.

Use the target transformation to transform content coordinates to target coordinates.

Note: This transformation maps pixels to pixels. It is independent of the target resolution.

Returns: Target transformation matrix.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ getNativeDisplayHandle()

virtual KZ_NO_DISCARD optional<void*> kanzi::GLGraphicsOutput::getNativeDisplayHandle ( ) const

pure virtualnoexcept

Gets associated native GL display handle.

Returns: The handle of associated display object, or nullopt on error.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ getNativeContextHandle()

virtual KZ_NO_DISCARD optional<void*> kanzi::GLGraphicsOutput::getNativeContextHandle ( ) const

pure virtualnoexcept

Gets associated native GL context handle.

Returns: The handle of associated graphics context object, or nullopt on error.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ getNativeSurfaceHandle()

virtual KZ_NO_DISCARD optional<void*> kanzi::GLGraphicsOutput::getNativeSurfaceHandle ( ) const

pure virtualnoexcept

Gets associated native GL surface handle.

Returns: The handle of associated surface object, or nullopt on error.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ createImage()

virtual KZ_NO_DISCARD optional<void*> kanzi::GLGraphicsOutput::createImage	(	int	target,
		void *	data,
		int *	attributes
	)

pure virtualnoexcept

Function for creating native image object, which can be shared between client APIs.

The returned image must be destroyed using destroyImage().

Parameters

target	Context-specific target specifier.
data	Data to use as image contents.
attributes	Context-specific attributes list.

Returns: Returns created image, or null on error.

See also: destroyImage().

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ destroyImage()

virtual bool kanzi::GLGraphicsOutput::destroyImage ( void * image )

pure virtualnoexcept

Function for destroying native image object.

Parameters

image Image to destroy.

Returns: True, on success.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

◆ getGraphicsContextAPI()

virtual KZ_NO_DISCARD optional<GraphicsContextAPI> kanzi::GLGraphicsOutput::getGraphicsContextAPI ( ) const

pure virtualnoexcept

Gets the API used by the associated graphics context.

Returns: Graphics context API, or nullopt on error.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::LegacyGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, and kanzi::emscripten::DefaultEmscriptenGraphicsOutput.

◆ getSurfaceClientAPI()

virtual KZ_NO_DISCARD optional<SurfaceClientAPI> kanzi::GLGraphicsOutput::getSurfaceClientAPI ( ) const

pure virtualnoexcept

Gets the type of the associated graphics surface.

Returns: Surface type, or nullopt on error.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::LegacyGraphicsOutput, and kanzi::emscripten::DefaultEmscriptenGraphicsOutput.

◆ getColorSpace()

virtual KZ_NO_DISCARD optional<SurfaceColorSpace> kanzi::GLGraphicsOutput::getColorSpace ( ) const

pure virtualnoexcept

Gets the color space used by the associated graphics context.

Returns: Color Space, or nullopt on error.

Implemented in kanzi::qnx::DefaultQnxEGLGraphicsOutput, kanzi::qnx::QnxEGLPBufferGraphicsOutput, kanzi::emscripten::DefaultEmscriptenGraphicsOutput, and kanzi::LegacyGraphicsOutput.

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

kanzi/core.ui/platform/graphics_backend/gl/gl_graphics_output.hpp

Public Types

Public Member Functions

Detailed Description

Member Typedef Documentation

◆ GLProcPointer

Constructor & Destructor Documentation

◆ ~GLGraphicsOutput()

Member Function Documentation

◆ getProcAddress()

◆ makeCurrent()

◆ releaseCurrent()

◆ swapBuffers()

◆ swapInterval()

◆ getTargetTransformation()

◆ getNativeDisplayHandle()

◆ getNativeContextHandle()

◆ getNativeSurfaceHandle()

◆ createImage()

◆ destroyImage()

◆ getGraphicsContextAPI()

◆ getSurfaceClientAPI()

◆ getColorSpace()