[已解决]我的图片为什么还是显示小图呢？

Cocos2d-x
#1

我的资源图7681136，我的设计大小（320568）机器（640*1136）用的cocos2dx 3.2
//图片适配
auto screenSize = glview->getFrameSize();
auto designSize = Size(320, 568);

auto fileUtils = FileUtils::getInstance();
std::vector<std::string> searchPaths;

if (screenSize.height>1136) {
    searchPaths.push_back("HDR");
}else if (screenSize.height<960){
    searchPaths.push_back("SD");
}else{
    searchPaths.push_back("HD");
    director->setContentScaleFactor(2);
}
fileUtils->setSearchPaths(searchPaths);
glview->setDesignResolutionSize(designSize.width, designSize.height,ResolutionPolicy::NO_BORDER);

为什么显示出来都比原来的小了一半？注释掉director->setContentScaleFactor(2);大小对了，但是变成图模糊了－－－＊＊图素明明不能重名＊＊