QGLContextGroupResourceBase Class Reference

#include <qgl_p.h>

Inheritance diagram for QGLContextGroupResourceBase:

Public Functions
virtual void	freeResource (void *value)=0
	QGLContextGroupResourceBase ()
virtual	~QGLContextGroupResourceBase ()
void	insert (const QGLContext *context, void *value)
void *	value (const QGLContext *context)
void	cleanup (const QGLContext *context)
void	cleanup (const QGLContext *context, void *value)
virtual void	contextDeleted (const QGLContext *ctx)

Protected Variables
QList< QGLContextGroup * >	m_groups

Properties
QAtomicInt	active

Detailed Description

Definition at line 730 of file qgl_p.h.

Constructors and Destructors

QGLContextGroupResourceBase()

QGLContextGroupResourceBase::QGLContextGroupResourceBase

(

)

Definition at line 5884 of file qgl.cpp.

    : active(0)
{
#ifdef QT_GL_CONTEXT_RESOURCE_DEBUG
    qDebug("Creating context group resource object %p.", this);
#endif
}

~QGLContextGroupResourceBase()

QGLContextGroupResourceBase::~QGLContextGroupResourceBase ( )

virtual

Definition at line 5892 of file qgl.cpp.

{
#ifdef QT_GL_CONTEXT_RESOURCE_DEBUG
    qDebug("Deleting context group resource %p. Group size: %d.", this, m_groups.size());
#endif
    for (int i = 0; i < m_groups.size(); ++i) {
        m_groups.at(i)->m_resources.remove(this);
        active.deref();
    }
#ifndef QT_NO_DEBUG
    if (active != 0) {
        qWarning("QtOpenGL: Resources are still available at program shutdown.\n"
                 "          This is possibly caused by a leaked QGLWidget, \n"
                 "          QGLFramebufferObject or QGLPixelBuffer.");
    }
#endif
}

Functions

cleanup() [1/2]

void QGLContextGroupResourceBase::cleanup

(

const QGLContext *

context

)

Definition at line 5928 of file qgl.cpp.

Referenced by QGLTextureGlyphCache::clear().

{
    void *resource = value(ctx);

    if (resource != 0) {
        QGLShareContextScope scope(ctx);
        freeResource(resource);

        QGLContextGroup *group = QGLContextPrivate::contextGroup(ctx);
        group->m_resources.remove(this);
        m_groups.removeOne(group);
        active.deref();
    }
}

cleanup() [2/2]

void QGLContextGroupResourceBase::cleanup	(	const QGLContext *	context,
		void *	value
	)

Definition at line 5948 of file qgl.cpp.

{
#ifdef QT_GL_CONTEXT_RESOURCE_DEBUG
    qDebug("Cleaning up context group resource %p, for context %p in thread %p.", this, ctx, QThread::currentThread());
#endif
    QGLShareContextScope scope(ctx);
    freeResource(value);
    active.deref();

    QGLContextGroup *group = QGLContextPrivate::contextGroup(ctx);
    m_groups.removeOne(group);
}

contextDeleted()

void QGLContextGroupResourceBase::contextDeleted ( const QGLContext *  ctx )

virtual

Reimplemented in QGLTextureGlyphCache.

Definition at line 5943 of file qgl.cpp.

{
    Q_UNUSED(ctx);
}

freeResource()

virtual void QGLContextGroupResourceBase::freeResource ( void *  value )

pure virtual

Implemented in QGLContextGroupResource< T >, QGLContextGroupResource< QGLGlyphTexture >, QGLContextGroupResource< QGL2GradientCache >, and QGLTextureGlyphCache.

insert()

void QGLContextGroupResourceBase::insert	(	const QGLContext *	context,
		void *	value
	)

Definition at line 5910 of file qgl.cpp.

Referenced by QGL2PaintEngineExPrivate::drawCachedGlyphs().

{
#ifdef QT_GL_CONTEXT_RESOURCE_DEBUG
    qDebug("Inserting context group resource %p for context %p, managed by %p.", value, context, this);
#endif
    QGLContextGroup *group = QGLContextPrivate::contextGroup(context);
    Q_ASSERT(!group->m_resources.contains(this));
    group->m_resources.insert(this, value);
    m_groups.append(group);
    active.ref();
}

value()

void * QGLContextGroupResourceBase::value

(

const QGLContext *

context

)

Definition at line 5922 of file qgl.cpp.

Referenced by QGLContextGroupResource< QGL2GradientCache >::value(), and QGLContextGroupResource< QGL2GradientCache >::~QGLContextGroupResource().

{
    QGLContextGroup *group = QGLContextPrivate::contextGroup(context);
    return group->m_resources.value(this, 0);
}

Properties

active

QAtomicInt QGLContextGroupResourceBase::active

private

Definition at line 746 of file qgl_p.h.

m_groups

QList<QGLContextGroup *> QGLContextGroupResourceBase::m_groups

protected

Definition at line 743 of file qgl_p.h.

---

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

• /src/opengl/qgl_p.h
• /src/opengl/qgl.cpp