fly/flightgear
1
0
Fork 0
Code Activity

Fix support for Uint32 indices.

Browse source
This commit is contained in:
James Turner 2017-02-18 08:14:50 -08:00
parent 905d8ae734
commit 66543f1588
1 changed files with 18 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
utils/fgqcanvas/fgcanvaspath.cpp
View file

@ -75,12 +75,20 @@ public:
QTransform transform;
QTriangleSet triangles = qTriangulate(m_path, transform);
// TODO, handle > 2^16 indices
Q_ASSERT(triangles.indices.type() == QVertexIndexVector::UnsignedShort);
int indexType = QSGGeometry::UnsignedShortType;
if (triangles.indices.type() == QVertexIndexVector::UnsignedShort) {
// default is fine
} else if (triangles.indices.type() == QVertexIndexVector::UnsignedInt) {
indexType = QSGGeometry::UnsignedIntType;
} else {
qFatal("Unsupported triangle index type");
}
QSGGeometry* sgGeom = new QSGGeometry(QSGGeometry::defaultAttributes_Point2D(),
triangles.vertices.size() >> 1,
triangles.indices.size());
triangles.indices.size(),
indexType);
sgGeom->setIndexDataPattern(QSGGeometry::StaticPattern);
sgGeom->setDrawingMode(GL_TRIANGLES);
@ -92,8 +100,13 @@ public:
(points++)->set(vx, vy);
}
if (triangles.indices.type() == QVertexIndexVector::UnsignedShort) {
quint16* indices = sgGeom->indexDataAsUShort();
::memcpy(indices, triangles.indices.data(), sizeof(unsigned short) * triangles.indices.size());
} else {
quint32* indices = sgGeom->indexDataAsUInt();
::memcpy(indices, triangles.indices.data(), sizeof(quint32) * triangles.indices.size());
}
// create the node now, pretty trivial
fillGeom = new QSGGeometryNode;