41     uint8_t opacity;                    //for composition  member
65             renderer->beginComposite(cmp, CompositeMethod::None, opacity);  in render()
73     bool needComposition(uint8_t opacity)  in needComposition()
75         if (opacity == 0) return false;  in needComposition()
82         if (opacity < 255) return true;  in needComposition()
88         if (target->pImpl->opacity == 255 || target->pImpl->opacity == 0) {  in needComposition()
106 …od* renderer, const Matrix& transform, Array<RenderData>& clips, uint8_t opacity, RenderUpdateFlag…  in update()
110         if ((needComp = needComposition(opacity))) {  in update()
113             this->opacity = opacity;  in update()
114             opacity = 255;  in update()
117 …rd = renderer->prepare(rs, rd, transform, clips, opacity, static_cast<RenderUpdateFlag>(pFlag | fl…  in update()