}    if (opaquePixels == imageArea) {        qDebug() << "Image with alpha channel is completely opaque:" << _url;        image = image.convertToFormat(QImage::Format_RGB888);    }    QMetaObject::invokeMethod(texture.data(), "setImage", Q_ARG(const QImage&, image),        Q_ARG(bool, translucentPixels >= imageArea / 2), Q_ARG(const QColor&, QColor(redTotal / imageArea,            greenTotal / imageArea, blueTotal / imageArea, alphaTotal / imageArea)));} void NetworkTexture::downloadFinished(QNetworkReply* reply) {    // send the reader off to the thread pool    QThreadPool::globalInstance()->start(new ImageReader(_self, reply));} void NetworkTexture::loadContent(const QByteArray& content) {    QThreadPool::globalInstance()->start(new ImageReader(_self, NULL, _url, content));} void NetworkTexture::setImage(const QImage& image, bool translucent, const QColor& averageColor) {    _translucent = translucent;    _averageColor = averageColor;        finishedLoading(true);    imageLoaded(image);    glBindTexture(GL_TEXTURE_2D, getID());    if (image.hasAlphaChannel()) {        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width(), image.height(), 0,            GL_BGRA, GL_UNSIGNED_BYTE, image.constBits());    } else {        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, image.width(), image.height(), 0,            GL_RGB, GL_UNSIGNED_BYTE, image.constBits());    }    // generate mipmaps    glGenerateMipmap(GL_TEXTURE_2D);    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);    glBindTexture(GL_TEXTURE_2D, 0);} void NetworkTexture::imageLoaded(const QImage& image) {    // nothing by default} DilatableNetworkTexture::DilatableNetworkTexture(const QUrl& url, const QByteArray& content) :    NetworkTexture(url, DEFAULT_TEXTURE, content),    _innerRadius(0),    _outerRadius(0){} QSharedPointer<Texture> DilatableNetworkTexture::getDilatedTexture(float dilation) {    QSharedPointer<Texture> texture = _dilatedTextures.value(dilation);    if (texture.isNull()) {        texture = QSharedPointer<Texture>(new Texture());                if (!_image.isNull()) {            QImage dilatedImage = _image;            QPainter painter;            painter.begin(&dilatedImage);            QPainterPath path;            qreal radius = glm::mix((float) _innerRadius, (float) _outerRadius, dilation);            path.addEllipse(QPointF(_image.width() / 2.0, _image.height() / 2.0), radius, radius);            painter.fillPath(path, Qt::black);            painter.end();                        glBindTexture(GL_TEXTURE_2D, texture->getID());            if (dilatedImage.hasAlphaChannel()) {                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, dilatedImage.width(), dilatedImage.height(), 0,                    GL_BGRA, GL_UNSIGNED_BYTE, dilatedImage.constBits());            } else {                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, dilatedImage.width(), dilatedImage.height(), 0,                    GL_RGB, GL_UNSIGNED_BYTE, dilatedImage.constBits());            }            glGenerateMipmap(GL_TEXTURE_2D);            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);            glBindTexture(GL_TEXTURE_2D, 0);        }                _dilatedTextures.insert(dilation, texture);    }    return texture;} void DilatableNetworkTexture::imageLoaded(const QImage& image) {    _image = image;        // scan out from the center to find inner and outer radii    int halfWidth = image.width() / 2;    int halfHeight = image.height() / 2;    const int BLACK_THRESHOLD = 32;    while (_innerRadius < halfWidth && qGray(image.pixel(halfWidth + _innerRadius, halfHeight)) < BLACK_THRESHOLD) {        _innerRadius++;    }    _outerRadius = _innerRadius;    const int TRANSPARENT_THRESHOLD = 32;    while (_outerRadius < halfWidth && qAlpha(image.pixel(halfWidth + _outerRadius, halfHeight)) > TRANSPARENT_THRESHOLD) {        _outerRadius++;    }        // clear out any textures we generated before loading    _dilatedTextures.clear();} void DilatableNetworkTexture::reinsert() {    static_cast<TextureCache*>(_cache.data())->_dilatableNetworkTextures.insert(_url,        qWeakPointerCast<NetworkTexture, Resource>(_self));    } 

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