Fixed|libgui|GLBuffer: Buffer not ready with an empty buffer

If an empty buffer is defined, it is still valid for drawing. A buffer needs to be cleared (released) to really be a "not ready" asset.
skyjake · Jul 31, 2013 · 6ba1f8c · 6ba1f8c
1 parent 02a52ee
commit 6ba1f8c
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/doomsday/libgui/src/glbuffer.cpp b/doomsday/libgui/src/glbuffer.cpp
@@ -192,13 +192,16 @@ void GLBuffer::setVertices(Primitive primitive, dsize count, void const *data, d
     d->prim  = primitive;
     d->count = count;
 
-    if(data && dataSize && count)
+    if(data)
     {
         d->alloc();
 
-        glBindBuffer(GL_ARRAY_BUFFER, d->name);
-        glBufferData(GL_ARRAY_BUFFER, dataSize, data, Instance::glUsage(usage));
-        glBindBuffer(GL_ARRAY_BUFFER, 0);
+        if(dataSize && count)
+        {
+            glBindBuffer(GL_ARRAY_BUFFER, d->name);
+            glBufferData(GL_ARRAY_BUFFER, dataSize, data, Instance::glUsage(usage));
+            glBindBuffer(GL_ARRAY_BUFFER, 0);
+        }
 
         setState(Ready);
     }