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C++ QSGGeometry::indexType方法代码示例

本文整理汇总了C++中QSGGeometry::indexType方法的典型用法代码示例。如果您正苦于以下问题:C++ QSGGeometry::indexType方法的具体用法?C++ QSGGeometry::indexType怎么用?C++ QSGGeometry::indexType使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在QSGGeometry的用法示例。


在下文中一共展示了QSGGeometry::indexType方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: setObject

bool SGGeometryExtension::setObject(void* object, const QString& typeName)
{
  if (typeName == "QSGGeometryNode") {
    m_node = static_cast<QSGGeometryNode*>(object);
    m_model->setNode(m_node);

    QSGGeometry *geometry = m_node->geometry();
    emit geometryChanged(geometry->drawingMode(),
                         QByteArray::fromRawData(reinterpret_cast<char*>(geometry->indexData()), geometry->indexCount()*geometry->sizeOfIndex()),
                         geometry->indexType());
    return true;
  }
  return false;
}
开发者ID:motto0808,项目名称:GammaRay,代码行数:14,代码来源:sggeometryextension.cpp

示例2: updateFillNode

void QQuickShapeGenericRenderer::updateFillNode(ShapePathData *d, QQuickShapeGenericNode *node)
{
    if (!node->m_fillNode)
        return;
    if (!(d->effectiveDirty & (DirtyFillGeom | DirtyColor | DirtyFillGradient)))
        return;

    // Make a copy of the data that will be accessed by the material on
    // the render thread. This must be done even when we bail out below.
    QQuickShapeGenericStrokeFillNode *n = node->m_fillNode;
    updateShadowDataInNode(d, n);

    QSGGeometry *g = n->geometry();
    if (d->fillVertices.isEmpty()) {
        if (g->vertexCount() || g->indexCount()) {
            g->allocate(0, 0);
            n->markDirty(QSGNode::DirtyGeometry);
        }
        return;
    }

    if (d->fillGradientActive) {
        QQuickShapeGenericStrokeFillNode::Material gradMat;
        switch (d->fillGradientActive) {
        case LinearGradient:
            gradMat = QQuickShapeGenericStrokeFillNode::MatLinearGradient;
            break;
        case RadialGradient:
            gradMat = QQuickShapeGenericStrokeFillNode::MatRadialGradient;
            break;
        case ConicalGradient:
            gradMat = QQuickShapeGenericStrokeFillNode::MatConicalGradient;
            break;
        default:
            Q_UNREACHABLE();
        }
        n->activateMaterial(m_item->window(), gradMat);
        if (d->effectiveDirty & DirtyFillGradient) {
            // Gradients are implemented via a texture-based material.
            n->markDirty(QSGNode::DirtyMaterial);
            // stop here if only the gradient changed; no need to touch the geometry
            if (!(d->effectiveDirty & DirtyFillGeom))
                return;
        }
    } else {
        n->activateMaterial(m_item->window(), QQuickShapeGenericStrokeFillNode::MatSolidColor);
        // fast path for updating only color values when no change in vertex positions
        if ((d->effectiveDirty & DirtyColor) && !(d->effectiveDirty & DirtyFillGeom)) {
            ColoredVertex *vdst = reinterpret_cast<ColoredVertex *>(g->vertexData());
            for (int i = 0; i < g->vertexCount(); ++i)
                vdst[i].set(vdst[i].x, vdst[i].y, d->fillColor);
            n->markDirty(QSGNode::DirtyGeometry);
            return;
        }
    }

    const int indexCount = d->indexType == QSGGeometry::UnsignedShortType
            ? d->fillIndices.count() * 2 : d->fillIndices.count();
    if (g->indexType() != d->indexType) {
        g = new QSGGeometry(QSGGeometry::defaultAttributes_ColoredPoint2D(),
                            d->fillVertices.count(), indexCount, d->indexType);
        n->setGeometry(g);
    } else {
        g->allocate(d->fillVertices.count(), indexCount);
    }
    g->setDrawingMode(QSGGeometry::DrawTriangles);
    memcpy(g->vertexData(), d->fillVertices.constData(), g->vertexCount() * g->sizeOfVertex());
    memcpy(g->indexData(), d->fillIndices.constData(), g->indexCount() * g->sizeOfIndex());

    n->markDirty(QSGNode::DirtyGeometry);
}
开发者ID:Conntac,项目名称:lottie-qt,代码行数:71,代码来源:qquickshapegenericrenderer.cpp


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