void StelTexture::onImageLoaded(QImage image)
{
qImage = image;
Q_ASSERT(!qImage.isNull());
glLoad();
isLoadingImage = false;
loader->deleteLater();
loader = NULL;
}
Image *OpenGLImageHelper::createTextSurface(SDL_Surface *const tmpImage,
const int width, const int height,
const float alpha)
{
if (!tmpImage)
return nullptr;
Image *const img = glLoad(tmpImage, width, height);
if (img)
img->setAlpha(alpha);
return img;
}
bool StelTexture::bind(int slot)
{
if (id != 0)
{
// The texture is already fully loaded, just bind and return true;
glActiveTexture(GL_TEXTURE0 + slot);
glBindTexture(GL_TEXTURE_2D, id);
return true;
}
if (errorOccured)
return false;
// If the file is remote, start a network connection.
if (loader == NULL && networkReply == NULL && fullPath.startsWith("http://")) {
QNetworkRequest req = QNetworkRequest(QUrl(fullPath));
// Define that preference should be given to cached files (no etag checks)
req.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache);
req.setRawHeader("User-Agent", StelUtils::getApplicationName().toLatin1());
networkReply = StelApp::getInstance().getNetworkAccessManager()->get(req);
connect(networkReply, SIGNAL(finished()), this, SLOT(onNetworkReply()));
return false;
}
// The network connection is still running.
if (networkReply != NULL)
return false;
// Not a remote file, start a loader from local file.
if (loader == NULL)
{
loader = new QFuture<GLData>(QtConcurrent::run(loadFromPath, fullPath));
return false;
}
// Wait until the loader finish.
if (!loader->isFinished())
return false;
// Finally load the data in the main thread.
glLoad(loader->result());
delete loader;
loader = NULL;
return true;
}
Image *OpenGLImageHelper::load(SDL_Surface *const tmpImage)
{
return glLoad(tmpImage);
}
// Actually load the texture to openGL memory
bool StelTexture::glLoad(const QImage& image)
{
return glLoad(imageToGLData(image));
}
