X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbackends%2Fopengl%2Fprogram_backend.h;h=9cce0f7e187ca4390e86962059955de5e1451c4f;hp=1a548ed69116d66d96bdd28e5194abb1cd441dfd;hb=9eb9f592d37e9a1e05c2ff70887a1c5f26b98864;hpb=29fe33d3dde1df0e11c741b0c02af2f33b685571

diff --git a/source/backends/opengl/program_backend.h b/source/backends/opengl/program_backend.h
index 1a548ed6..9cce0f7e 100644
--- a/source/backends/opengl/program_backend.h
+++ b/source/backends/opengl/program_backend.h
@@ -18,6 +18,8 @@ protected:
 	enum Stage
 	{
 		VERTEX,
+		TESS_CONTROL,
+		TESS_EVAL,
 		GEOMETRY,
 		FRAGMENT,
 		COMPUTE,
@@ -58,6 +60,7 @@ protected:
 	void finalize_uniforms();
 
 	bool is_compute() const { return stage_ids[COMPUTE]; }
+	bool has_tessellation() const { return stage_ids[TESS_CONTROL] && stage_ids[TESS_EVAL]; }
 
 	void set_debug_name(const std::string &);
 	void set_stage_debug_name(unsigned, Stage);