[cocos2dx android]使用位图中的原始数据渲染精灵
我正在尝试从URL获取一个图像到位图,然后使用位图中的原始数据创建一个CCSprite。这里的问题是精灵显示边界宽度和高度为零 我从URL获取图像的代码是:[cocos2dx android]使用位图中的原始数据渲染精灵,android,c++,bitmap,cocos2d-x,Android,C++,Bitmap,Cocos2d X,我正在尝试从URL获取一个图像到位图,然后使用位图中的原始数据创建一个CCSprite。这里的问题是精灵显示边界宽度和高度为零 我从URL获取图像的代码是: String urlString ="https://graph.facebook.com/1536842063253312/picture?type=square"; //"http://www.mathewingram.com/work/wp-content/themes/thesis/rotator/335f69c5de_small.
String urlString ="https://graph.facebook.com/1536842063253312/picture?type=square"; //"http://www.mathewingram.com/work/wp-content/themes/thesis/rotator/335f69c5de_small.jpg";//http://graph.facebook.com/"+user.getId()+"/picture?type=large";
Bitmap pic = null;
try {
pic = BitmapFactory.decodeStream((InputStream) new URL(urlString).getContent());
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
System.out.println("start fetchImageOfFacebook"+e);
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.println("start fetchImageOfFacebook"+e);
e.printStackTrace();
}
int[] pixels = new int[pic.getWidth() * pic.getHeight()];
pic.getPixels(pixels, 0, pic.getWidth(), 0, 0, pic.getWidth(), pic.getHeight());
int[] finalArray = new int[pic.getWidth() * pic.getHeight()];
int len = pic.getWidth() * pic.getHeight();
for(int i = 0; i < len; i++) {
int red = Color.red(pixels[i]);
int green = Color.green(pixels[i]);
int blue = Color.blue(pixels[i]);
finalArray[i] = Color.rgb(blue, green, red);//invert sequence here.
}
onFacebookImageNative(pixels,len,pic.getWidth(), pic.getHeight());
Main cpp...
JNIEXPORT void JNICALL Java_org_cocos2dx_cpp_AppActivity_onFacebookImageNative(JNIEnv* env, jobject,
jintArray pixels, jint dataLen, jint width, jint height, jint bitsPerComponent)
{
jint *jArr = env->GetIntArrayElements(pixels, NULL);
int pixelsInt[dataLen];
for (int i=0; i<dataLen; i++){
pixelsInt[i] = (int)jArr[i];
}
GameManager::sharedGameManager()->onFacebookImage(pixelsInt, (int) dataLen, (int) width, (int) height);
}
GameManager.cpp Class
void GameManager:: onFacebookImage(int pixelsInt[], int picLen, int picWidth, int picHeight)
{
CCTexture2D *tex = new CCTexture2D();
bool val = tex->initWithData(pixelsInt,picLen,(Texture2D::PixelFormat)0,picWidth,picHeight, Size(picWidth,picHeight));
CCSprite *spriteToAdd = CCSprite::createWithTexture(tex);
CCLog("spriteToAdd %f %f",spriteToAdd->getBoundingBox().size.width,spriteToAdd->getBoundingBox().size.height);
}
String url字符串=”https://graph.facebook.com/1536842063253312/picture?type=square"; //"http://www.mathewingram.com/work/wp-content/themes/thesis/rotator/335f69c5de_small.jpg";//http://graph.facebook.com/“+user.getId()+”/picture?type=large”;
位图pic=null;
试一试{
pic=BitmapFactory.decodeStream((InputStream)新URL(urlString.getContent());
}捕获(格式错误){
//TODO自动生成的捕捉块
System.out.println(“启动fetchImageOfFacebook”+e);
e、 printStackTrace();
}捕获(IOE异常){
//TODO自动生成的捕捉块
System.out.println(“启动fetchImageOfFacebook”+e);
e、 printStackTrace();
}
int[]像素=新的int[pic.getWidth()*pic.getHeight()];
pic.getPixels(像素,0,pic.getWidth(),0,0,pic.getWidth(),pic.getHeight());
int[]finalArray=newint[pic.getWidth()*pic.getHeight()];
int len=pic.getWidth()*pic.getHeight();
对于(int i=0;iGetIntArrayElements(像素,空);
int pixelsInt[dataLen];
对于(int i=0;ionFacebookImage(像素点,(int)数据长度,(int)宽度,(int)高度);
}
GameManager.cpp类
void GameManager::onFacebookImage(int pixelsInt[],int picLen,int picWidth,int picHeight)
{
CCTexture2D*tex=新的CCTexture2D();
bool val=tex->initWithData(pixelsInt,picLen,(Texture2D::PixelFormat)0,picWidth,picHeight,Size(picWidth,picHeight));
CCSprite*spriteToAdd=CCSprite::createWithTexture(tex);
CCLog(“SpriteLoadd%f%f”,SpriteLoadd->getBoundingBox().size.width,SpriteLoadd->getBoundingBox().size.height);
}
我将使用CoCoCoS2D::network::HttpRequest获取Facebook个人资料图像。您不必重写不同平台的图像获取代码
void MyLayer::getFacebookPicture()
{
_url = "https://graph.facebook.com/1536842063253312/picture?type=square"; // std::string _url
cocos2d::network::HttpRequest *_httpRequest = new cocos2d::network::HttpRequest();
_httpRequest->setUrl(url.c_str());
_httpRequest->setRequestType(cocos2d::network::HttpRequest::Type::GET);
_httpRequest->setResponseCallback( CC_CALLBACK_2(MyLayer::imageDownloadedCallback, this) );
cocos2d::network::HttpClient::getInstance()->send(_httpRequest);
}
void MyLayer::imageDownloadedCallback(cocos2d::network::HttpClient *client, cocos2d::network::HttpResponse *response)
{
if(!response->isSucceed()){
return;
}
std::vector<char> *buffer = response->getResponseData();
// Use the response data to create an image.
cocos2d::Image *img = new cocos2d::Image;
if(img->initWithImageData((unsigned char*)&(buffer->front()), buffer->size()) == false){
return;
}
auto textureCache = cocos2d::Director::getInstance()->getTextureCache();
// Add into the texture cache
cocos2d::Texture2D* texture = textureCache->addImage(img, _url);
img->release();
_spriteFBProfile->setTexture(texture); // Sprite *_spriteFBProfile
}
void MyLayer::getFacebookPicture()
{
_url=”https://graph.facebook.com/1536842063253312/picture?type=square“;//std::string\u url
cocos2d::network::HttpRequest*_HttpRequest=新的cocos2d::network::HttpRequest();
_httpRequest->setUrl(url.c_str());
_httpRequest->setRequestType(cocos2d::network::httpRequest::Type::GET);
_httpRequest->setResponseCallback(CC_CALLBACK_2(MyLayer::imageDownloadedCallback,this));
cocos2d::network::HttpClient::getInstance()->send(_httpRequest);
}
void MyLayer::imageDownloadedCallback(cocos2d::network::HttpClient*客户端,cocos2d::network::HttpResponse*响应)
{
如果(!响应->isSucceed()){
返回;
}
std::vector*buffer=response->getResponseData();
//使用响应数据创建图像。
cocos2d::Image*img=新的cocos2d::Image;
如果(img->initWithImageData((unsigned char*)&(buffer->front()),buffer->size())==false){
返回;
}
auto-textureCache=cocos2d::Director::getInstance()->getTextureCache();
//添加到纹理缓存中
cocos2d::Texture2D*texture=textureCache->addImage(img,_url);
img->release();
_SpriteBprofile->setTexture(纹理);//Sprite*\u SpriteBprofile
}