Collapse the shared part of Mesh::draw and draw_instanced

[libs/gl.git] / source / mesh.cpp

diff --git a/source/mesh.cpp b/source/mesh.cpp
index c6543f01cee322bbaa465ea492b2cd15e800bb66..b5535039b44109a2f31ca8cd9c57105001966b64 100644 (file)
--- a/source/mesh.cpp
+++ b/source/mesh.cpp
@@ -116,18 +116,7 @@ void Mesh::set_winding(const WindingTest *w)
 
 void Mesh::draw(Renderer &renderer) const
 {
-       if(manager)
-       {
-               manager->resource_used(*this);
-               if(disallow_rendering)
-                       return;
-       }
-
-       renderer.set_vertex_setup(&vtx_setup);
-       renderer.set_winding_test(winding);
-
-       for(vector<Batch>::const_iterator i=batches.begin(); i!=batches.end(); ++i)
-               renderer.draw(*i);
+       draw(renderer, 0, 0);
 }
 
 void Mesh::draw_instanced(Renderer &renderer, const VertexSetup &vs, unsigned count) const
@@ -135,6 +124,11 @@ void Mesh::draw_instanced(Renderer &renderer, const VertexSetup &vs, unsigned co
        if(vs.get_vertex_array()!=&vertices)
                throw invalid_argument("Mesh::draw_instanced");
 
+       draw(renderer, &vs, count);
+}
+
+void Mesh::draw(Renderer &renderer, const VertexSetup *vs, unsigned count) const
+{
        if(manager)
        {
                manager->resource_used(*this);
@@ -142,11 +136,19 @@ void Mesh::draw_instanced(Renderer &renderer, const VertexSetup &vs, unsigned co
                        return;
        }
 
-       renderer.set_vertex_setup(&vs);
+       renderer.set_vertex_setup(vs ? vs : &vtx_setup);
        renderer.set_winding_test(winding);
 
-       for(vector<Batch>::const_iterator i=batches.begin(); i!=batches.end(); ++i)
-               renderer.draw_instanced(*i, count);
+       if(!count)
+       {
+               for(vector<Batch>::const_iterator i=batches.begin(); i!=batches.end(); ++i)
+                       renderer.draw(*i);
+       }
+       else
+       {
+               for(vector<Batch>::const_iterator i=batches.begin(); i!=batches.end(); ++i)
+                       renderer.draw_instanced(*i, count);
+       }
 }
 
 Resource::AsyncLoader *Mesh::load(IO::Seekable &io, const Resources *)