diff options
| -rw-r--r-- | src/opengl/gl2paintengineex/qtriangulatingstroker.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp index 6082f49..395b8a3 100644 --- a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp +++ b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp @@ -62,8 +62,14 @@ void QTriangulatingStroker::endCapOrJoinClosed(const qreal *start, const qreal * endCap(cur); } int count = m_vertices.size(); - m_vertices.add(m_vertices.at(count-2)); - m_vertices.add(m_vertices.at(count-1)); + + // Copy the (x, y) values because QDataBuffer::add(const float& t) + // may resize the buffer, which will leave t pointing at the + // previous buffer's memory region if we don't copy first. + float x = m_vertices.at(count-2); + float y = m_vertices.at(count-1); + m_vertices.add(x); + m_vertices.add(y); } |