void Renderer::buildRenderList(QSGNode *node, QSGClipNode *clip)
{
if (node->isSubtreeBlocked())
return;
if (node->type() == QSGNode::GeometryNodeType || node->type() == QSGNode::ClipNodeType) {
QSGBasicGeometryNode *gn = static_cast<QSGBasicGeometryNode *>(node);
QSGGeometry *g = gn->geometry();
Element e;
e.node = gn;
if (g->vertexCount() > 0) {
e.vboOffset = m_vboSize;
int vertexSize = g->sizeOfVertex() * g->vertexCount();
m_vboSize += vertexSize;
m_vboData.resize(m_vboSize);
memcpy(m_vboData.data() + e.vboOffset, g->vertexData(), vertexSize);
} else {
e.vboOffset = -1;
}
if (g->indexCount() > 0) {
e.iboOffset = m_iboSize;
int indexSize = g->sizeOfIndex() * g->indexCount();
m_iboSize += indexSize;
m_iboData.resize(m_iboSize);
memcpy(m_iboData.data() + e.iboOffset, g->indexData(), indexSize);
} else {
e.iboOffset = -1;
}
m_renderList.add(e);
static_cast<BasicGeometryNode_Accessor *>(node)->m_clip_list = clip;
if (node->type() == QSGNode::ClipNodeType)
clip = static_cast<QSGClipNode *>(node);
}
QSGNODE_TRAVERSE(node)
buildRenderList(child, clip);
}
void RenderList::render() {
buildRenderList();
for (RenderNode* renderNode : mRenderList) {
renderNode->render();
}
}