Open GL context. More...

#include <qwindowsglcontext.h>

Inheritance diagram for QWindowsGLContext:

Collaboration diagram for QWindowsGLContext:

Public Types
typedef void(*	GL_Proc) ()

Public Member Functions
	QWindowsGLContext (QOpenGLStaticContext staticContext, QOpenGLContext context)
	QWindowsGLContext (QOpenGLStaticContext *staticContext, HGLRC context, HWND window)
	~QWindowsGLContext () override
bool	isSharing () const override
bool	isValid () const override
QSurfaceFormat	format () const override
void	swapBuffers (QPlatformSurface *surface) override
	Reimplement in subclass to native swap buffers calls.
bool	makeCurrent (QPlatformSurface *surface) override
void	doneCurrent () override
QFunctionPointer	getProcAddress (const char *procName) override
	Reimplement in subclass to allow dynamic querying of OpenGL symbols.
HGLRC	renderingContext () const
HGLRC	nativeContext () const override
Public Member Functions inherited from QWindowsOpenGLContext
virtual void *	nativeDisplay () const
virtual void *	nativeConfig () const
Public Member Functions inherited from QPlatformOpenGLContext
	QPlatformOpenGLContext ()
virtual	~QPlatformOpenGLContext ()
virtual void	initialize ()
	Called after a new instance is constructed.
virtual GLuint	defaultFramebufferObject (QPlatformSurface *surface) const
	Reimplement in subclass if your platform uses framebuffer objects for surfaces.
virtual void	beginFrame ()
	Called when the RHI begins rendering a new frame in the context.
virtual void	endFrame ()
	Called when the RHI ends rendering a in the context.
QOpenGLContext *	context () const

Additional Inherited Members
Static Public Member Functions inherited from QPlatformOpenGLContext
static bool	parseOpenGLVersion (const QByteArray &versionString, int &major, int &minor)
Protected Member Functions inherited from QWindowsOpenGLContext
	QWindowsOpenGLContext ()=default

Detailed Description

Open GL context.

An Open GL context for use with several windows. As opposed to other implementations, activating a GL context for a window requires a HDC allocated for it. The first time this HDC is created for the window, the pixel format must be applied, which will affect the window as well. The HDCs are stored in a list of QOpenGLContextData and are released in doneCurrent().

Definition at line 168 of file qwindowsglcontext.h.

Member Typedef Documentation

◆ GL_Proc

typedef void(* QWindowsGLContext::GL_Proc) ()

Definition at line 184 of file qwindowsglcontext.h.

Constructor & Destructor Documentation

◆ QWindowsGLContext() [1/2]

QWindowsGLContext::QWindowsGLContext	(	QOpenGLStaticContext *	staticContext,
		QOpenGLContext *	context )

explicit

Definition at line 1029 of file qwindowsglcontext.cpp.

References QWindowsOpenGLAdditionalFormat::QWindowsOpenGLAdditionalFormat(), QOpenGLStaticContext::extensions, QOpenGLStaticContext::opengl32, QWindowsGLDirectRendering, QOpenGLStaticContext::sRGBCapableFramebuffer, and QWindowsContext::verbose.

Here is the call graph for this function:

◆ QWindowsGLContext() [2/2]

QWindowsGLContext::QWindowsGLContext	(	QOpenGLStaticContext *	staticContext,
		HGLRC	context,
		HWND	window )

explicit

Definition at line 1150 of file qwindowsglcontext.cpp.

◆ ~QWindowsGLContext()

QWindowsGLContext::~QWindowsGLContext ( )

override

Definition at line 1181 of file qwindowsglcontext.cpp.

References QOpenGLStaticContext::opengl32.

Member Function Documentation

◆ doneCurrent()

void QWindowsGLContext::doneCurrent ( )

overridevirtual

Implements QPlatformOpenGLContext.

Definition at line 1323 of file qwindowsglcontext.cpp.

References QOpenGLStaticContext::opengl32.

◆ format()

QSurfaceFormat QWindowsGLContext::format ( ) const

inlineoverridevirtual

Implements QPlatformOpenGLContext.

Definition at line 177 of file qwindowsglcontext.h.

◆ getProcAddress()

QFunctionPointer QWindowsGLContext::getProcAddress ( const char * procName )

overridevirtual

Reimplement in subclass to allow dynamic querying of OpenGL symbols.

As opposed to e.g. the wglGetProcAddress function on Windows, Qt expects this methods to be able to return valid function pointers even for standard OpenGL symbols.

Implements QPlatformOpenGLContext.

Definition at line 1333 of file qwindowsglcontext.cpp.

References QOpenGLStaticContext::opengl32, and QWindowsContext::verbose.