void QWindowCompositor::paintChildren(QWaylandSurface *surface, QWaylandSurface *window, const QSize &windowSize) {
if (surface->subSurfaces().size() == 0)
return;
QLinkedListIterator<QWaylandSurface *> i(surface->subSurfaces());
while (i.hasNext()) {
QWaylandSurface *subSurface = i.next();
QPointF p = subSurface->mapTo(window,QPointF(0,0));
QSize subSize = subSurface->size();
subSurface->advanceBufferQueue();
if (subSize.isValid()) {
GLuint texture = 0;
if (subSurface->type() == QWaylandSurface::Texture) {
texture = subSurface->texture(QOpenGLContext::currentContext());
} else if (surface->type() == QWaylandSurface::Shm ) {
texture = m_textureCache->bindTexture(QOpenGLContext::currentContext(),surface->image());
}
QRect geo(p.toPoint(),subSize);
if (texture > 0)
m_textureBlitter->drawTexture(texture,geo,windowSize,0,window->isYInverted(),subSurface->isYInverted());
if (surface->type() == QWaylandSurface::Shm)
glDeleteTextures(1, &texture);
}
paintChildren(subSurface,window,windowSize);
}
}
void QtwaylandSurfaceNode::paintChildren(QWaylandSurface *surface, QWaylandSurface *window, OpenGLData *glData) {
if (surface->subSurfaces().size() == 0)
return;
QLinkedListIterator<QWaylandSurface *> i(surface->subSurfaces());
while (i.hasNext()) {
QWaylandSurface *subSurface = i.next();
QPointF p = subSurface->mapTo(window,QPointF(0,0));
if (subSurface->size().isValid()) {
GLuint texture = 0;
if (subSurface->type() == QWaylandSurface::Texture) {
texture = subSurface->texture(QOpenGLContext::currentContext());
} else if (surface->type() == QWaylandSurface::Shm ) {
texture = glData->m_textureCache->bindTexture(QOpenGLContext::currentContext(),surface->image());
}
QRect geo(p.toPoint(),subSurface->size());
glData->m_textureBlitter->drawTexture(texture,geo,window->size(),0,window->isYInverted(),subSurface->isYInverted());
}
paintChildren(subSurface,window, glData);
}
}