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| |
| #include "pointsvisitor_p.h" |
| #include <Qt3DCore/qentity.h> |
| #include <Qt3DRender/qgeometryrenderer.h> |
| #include <Qt3DRender/private/managers_p.h> |
| #include <Qt3DRender/private/nodemanagers_p.h> |
| #include <Qt3DRender/private/buffermanager_p.h> |
| #include <Qt3DRender/private/geometryrenderer_p.h> |
| #include <Qt3DRender/private/geometryrenderermanager_p.h> |
| #include <Qt3DRender/private/geometry_p.h> |
| #include <Qt3DRender/private/attribute_p.h> |
| #include <Qt3DRender/private/buffer_p.h> |
| #include <Qt3DRender/private/trianglesvisitor_p.h> |
| #include <Qt3DRender/private/visitorutils_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| |
| namespace Render { |
| |
| namespace { |
| |
| // indices, vertices are already offset |
| template<typename Index, typename Vertex> |
| void traverseCoordinatesIndexed(Index *indices, |
| Vertex *vertices, |
| const BufferInfo &indexInfo, |
| const BufferInfo &vertexInfo, |
| PointsVisitor *visitor) |
| { |
| uint i = 0; |
| const uint verticesStride = vertexInfo.byteStride / sizeof(Vertex); |
| const uint maxVerticesDataSize = qMin(vertexInfo.dataSize, 3U); |
| |
| uint ndx; |
| Vector3D abc; |
| while (i < indexInfo.count) { |
| ndx = indices[i]; |
| const uint idx = ndx * verticesStride; |
| for (uint j = 0; j < maxVerticesDataSize; ++j) { |
| abc[j] = vertices[idx + j]; |
| } |
| visitor->visit(ndx, abc); |
| ++i; |
| } |
| } |
| |
| // vertices are already offset |
| template<typename Vertex> |
| void traverseCoordinates(Vertex *vertices, |
| const BufferInfo &vertexInfo, |
| PointsVisitor *visitor) |
| { |
| const uint verticesStride = vertexInfo.byteStride / sizeof(Vertex); |
| const uint maxVerticesDataSize = qMin(vertexInfo.dataSize, 3U); |
| |
| uint ndx = 0; |
| Vector3D abc; |
| while (ndx < vertexInfo.count) { |
| const uint idx = ndx * verticesStride; |
| for (uint j = 0; j < maxVerticesDataSize; ++j) |
| abc[j] = vertices[idx + j]; |
| visitor->visit(ndx, abc); |
| ++ndx; |
| } |
| } |
| |
| template<typename Index, typename Visitor> |
| struct IndexedVertexExecutor |
| { |
| template<typename Vertex> |
| void operator ()(const BufferInfo &vertexInfo, Vertex * vertices) |
| { |
| traverseCoordinatesIndexed(m_indices, vertices, m_indexBufferInfo, vertexInfo, m_visitor); |
| } |
| |
| BufferInfo m_indexBufferInfo; |
| Index *m_indices; |
| Qt3DRender::QGeometryRenderer::PrimitiveType m_primitiveType; |
| Visitor* m_visitor; |
| }; |
| |
| template<typename Visitor> |
| struct IndexExecutor |
| { |
| template<typename Index> |
| void operator ()( const BufferInfo &indexInfo, Index *indices) |
| { |
| IndexedVertexExecutor<Index, Visitor> exec; |
| exec.m_primitiveType = m_primitiveType; |
| exec.m_indices = indices; |
| exec.m_indexBufferInfo = indexInfo; |
| exec.m_visitor = m_visitor; |
| Qt3DRender::Render::Visitor::processBuffer(m_vertexBufferInfo, exec); |
| } |
| |
| BufferInfo m_vertexBufferInfo; |
| Qt3DRender::QGeometryRenderer::PrimitiveType m_primitiveType; |
| Visitor* m_visitor; |
| }; |
| |
| template<typename Visitor> |
| struct VertexExecutor |
| { |
| template<typename Vertex> |
| void operator ()(const BufferInfo &vertexInfo, Vertex *vertices) |
| { |
| switch (m_primitiveType) { |
| case Qt3DRender::QGeometryRenderer::Points: |
| traverseCoordinates(vertices, vertexInfo, m_visitor); |
| return; |
| default: |
| Q_UNREACHABLE(); |
| return; |
| } |
| } |
| |
| Qt3DRender::QGeometryRenderer::PrimitiveType m_primitiveType; |
| Visitor* m_visitor; |
| }; |
| |
| } // anonymous |
| |
| |
| PointsVisitor::~PointsVisitor() |
| { |
| |
| } |
| |
| void PointsVisitor::apply(const Qt3DCore::QEntity *entity) |
| { |
| GeometryRenderer *renderer = m_manager->geometryRendererManager()->lookupResource(entity->id()); |
| apply(renderer, entity->id()); |
| } |
| |
| void PointsVisitor::apply(const GeometryRenderer *renderer, const Qt3DCore::QNodeId id) |
| { |
| m_nodeId = id; |
| if (renderer && renderer->instanceCount() == 1) { |
| Visitor::visitPrimitives<VertexExecutor<PointsVisitor>, |
| IndexExecutor<PointsVisitor>, PointsVisitor>(m_manager, renderer, this); |
| } |
| } |
| |
| } // namespace Render |
| |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |