OpenGLVertexArrayObject: add a destroy method

Change-Id: I0fd40ace5234697a0d281cac7e0bdc1680d73558
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

2 files changed, 13 insertions, 0 deletions

diff --git a/src/render/backend/openglvertexarrayobject.cpp b/src/render/backend/openglvertexarrayobject.cpp
index e64ab58c6..6120c7233 100644
--- a/src/render/backend/openglvertexarrayobject.cpp
+++ b/src/render/backend/openglvertexarrayobject.cpp
@@ -110,6 +110,18 @@ void OpenGLVertexArrayObject::create()
     }
 }
 
+void OpenGLVertexArrayObject::destroy()
+{
+    Q_ASSERT(m_ctx);
+    if (m_supportsVao) {
+        Q_ASSERT(!m_vao.isNull());
+        m_vao->destroy();
+    }
+    m_specified = false;
+    m_indexAttribute = GraphicsContext::VAOIndexAttribute();
+    m_vertexAttributes.clear();
+}
+
 bool OpenGLVertexArrayObject::isCreated() const
 {
     if (m_supportsVao) {
diff --git a/src/render/backend/openglvertexarrayobject_p.h b/src/render/backend/openglvertexarrayobject_p.h
index 08acf32b7..4f21497f0 100644
--- a/src/render/backend/openglvertexarrayobject_p.h
+++ b/src/render/backend/openglvertexarrayobject_p.h
@@ -68,6 +68,7 @@ public:
     void bind();
     void release();
     void create();
+    void destroy();
     bool isCreated() const;
 
     QOpenGLVertexArrayObject *vao() { return m_vao.data(); }