扣扣屎 webp 支持

var checkWebp =function(){

  try{

      return (document.createElement('canvas').toDataURL('image/webp').indexOf('data:image/webp') ==0);

}catch(err) {

      return  false;

}

}

cocos2d.onload =function(){

  if(!checkWebp()){

      let arr = cc.macro.SUPPORT_TEXTURE_FORMATS;

let key =arr.indexOf(".webp");

key > -1 &&arr.splice(key,1);

}

      console.log("cc.macro.SUPPORT_TEXTURE_FORMATS", cc.macro.SUPPORT_TEXTURE_FORMATS);

};