我的COCOS2D-X 3.0适配方案

	auto director = Director::getInstance();
	auto glview = director->getopenGLView();
	if (!glview) {
		glview = GLView::createWithRect("js-tests",Rect(0,900,640));
		director->setopenGLView(glview);
	}

	CCSize frameSize = glview->getFrameSize();
	CCSize winSize = CCSize(960,640);
	
	float scalex = frameSize.width / winSize.width;
	float scaley = frameSize.width / winSize.height;


	if (scalex > scaley)
	{
		glview->setDesignResolutionSize(winSize.width*scalex / scaley,winSize.height,ResolutionPolicy::NO_BORDER);
	}
	else
	{
		glview->setDesignResolutionSize(winSize.width,winSize.height*scaley / scalex,ResolutionPolicy::NO_BORDER);
	}