bool QGLPixmapData::useFramebufferObjects() const
{
return QGLFramebufferObject::hasOpenGLFramebufferObjects()
&& QGLFramebufferObject::hasOpenGLFramebufferBlit()
&& qt_gl_preferGL2Engine()
&& (w * h > 32*32); // avoid overhead of FBOs for small pixmaps
}
/*! \reimp */
QPaintEngine *QGLFramebufferObject::paintEngine() const
{
Q_D(const QGLFramebufferObject);
if (d->engine)
return d->engine;
#if !defined(QT_OPENGL_ES_1)
#if !defined (QT_OPENGL_ES_2)
if (qt_gl_preferGL2Engine()) {
#endif
QPaintEngine *engine = qt_buffer_2_engine();
if (engine->isActive() && engine->paintDevice() != this) {
d->engine = new QGL2PaintEngineEx;
return d->engine;
}
return engine;
#if !defined (QT_OPENGL_ES_2)
}
#endif
#endif
#if !defined(QT_OPENGL_ES_2)
QPaintEngine *engine = qt_buffer_engine();
if (engine->isActive() && engine->paintDevice() != this) {
d->engine = new QOpenGLPaintEngine;
return d->engine;
}
return engine;
#endif
}
bool QGLPixmapData::useFramebufferObjects() const
{
#ifdef Q_OS_SYMBIAN
// We don't want to use FBOs on Symbian
return false;
#else
return QGLFramebufferObject::hasOpenGLFramebufferObjects()
&& QGLFramebufferObject::hasOpenGLFramebufferBlit()
&& qt_gl_preferGL2Engine()
&& (w * h > 32*32); // avoid overhead of FBOs for small pixmaps
#endif
}
/*! \reimp */
QPaintEngine *QGLPixelBuffer::paintEngine() const
{
#if defined(QT_OPENGL_ES_1)
return qt_buffer_engine()->engine();
#elif defined(QT_OPENGL_ES_2)
return qt_buffer_2_engine()->engine();
#else
if (qt_gl_preferGL2Engine())
return qt_buffer_2_engine()->engine();
else
return qt_buffer_engine()->engine();
#endif
}
bool QGLPixmapData::useFramebufferObjects()
{
return QGLFramebufferObject::hasOpenGLFramebufferObjects()
&& QGLFramebufferObject::hasOpenGLFramebufferBlit()
&& qt_gl_preferGL2Engine();
}