Cocos2d-x-从Sprite或Texture数据编码base64字符串

Question

How create base64 string from image data, encode base64 from image data, Ill try like this

CCRenderTexture* r = CCRenderTexture::create(sprite->getTexture()->getPixelsWide(), sprite->getTexture()->getPixelsHigh());
r->beginWithClear(1, 1, 1, 0);
sprite->visit();
r->end();
CCImage *img = r->newCCImage();
unsigned char *data = img->getData();
int len = img->getDataLen();
str = base64_encode(data, len);


return str;

Answer 1

I found the solution, Need to read the image as a text file and decode in base64, I misunderstood about the work img-> getData ();

std::string str;
unsigned long pSize = 0;
unsigned char*filecont =  CCFileUtils::sharedFileUtils()->getFileData("file.png", "rb", &pSize);
cout<<filecont;
str = base64_encode(filecont, pSize);
cout<<str;
return str;