手动创建image

 cocos2d::CCImage* HelloWorld::createImageFromSprite(cocos2d::CCSprite *pSpr)

11.{

12.CCSprite* pNewSpr = CCSprite::createWithSpriteFrame(pSpr->displayFrame());

13.pNewSpr->setAnchorPoint(CCPointZero);

14.CCRenderTexture* pRender = CCRenderTexture::create(pNewSpr->getContentSize().width, pNewSpr->getContentSize().height, kCCTexture2DPixelFormat_RGBA8888);

15.pRender->begin();

16.pNewSpr->visit();

17.pRender->end();

18.return pRender->newCCImage();

19.}