Cocos2d-x Get image size

CCSize Global::getImageSize(const char* filename) {
    CCSprite *sprite;
   
    bool check = Global:: checkFileExistInResource(filename);
   
    if(check) {
        sprite = CCSprite::create(filename);
    } else {
        sprite = CCSprite::createWithTexture(Global::getTextureFromImage(filename));
    }
   
    return CCSizeMake(sprite->boundingBox().size.width, sprite->boundingBox().size.height);
}

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