CCSprite *imgMipMap = CCSprite::create("Images/logo-mipmap.pvr");
if( imgMipMap )
{
    imgMipMap->setPosition(ccp( s.width/2.0f-100,s.height/2.0f));
    addChild(imgMipMap);

　　// support mipmap filtering
　　ccTexParams texParams = { GL_LINEAR_MIPMAP_LINEAR,GL_LINEAR,GL_CLAMP_TO_EDGE,GL_CLAMP_TO_EDGE };
　　imgMipMap->getTexture()->setTexParameters(&texParams);
}