libgui|GLBuffer: Utility for concatenating triangle strips

skyjake · May 18, 2013 · ca59f0c · ca59f0c
1 parent 35404c0
commit ca59f0c
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/doomsday/libgui/include/de/gui/glbuffer.h b/doomsday/libgui/include/de/gui/glbuffer.h
@@ -201,6 +201,15 @@ class GLBufferT : public GLBuffer
     void setVertices(gl::Primitive primitive, Vertices const &vertices, gl::Usage usage) {
         GLBuffer::setVertices(primitive, vertices.size(), vertices.constData(), sizeof(VertexType) * vertices.size(), usage);
     }
+
+    static void concatenate(Vertices const &triStripSequence, Vertices &longTriStrip) {
+        if(!triStripSequence.size()) return;
+        if(!longTriStrip.isEmpty()) {
+            longTriStrip << longTriStrip.back();
+            longTriStrip << triStripSequence.front();
+        }
+        longTriStrip << triStripSequence;
+    }
 };
 
 } // namespace de