Expose the fact that we do not do either selection of feedback buffers - either with software or hardware rendering.

src/mesa/drivers/dri/r300/r300_render.c

@@ -613,6 +613,8 @@ static void r300_check_render(GLcontext *ctx, struct tnl_pipeline_stage *stage)
 	//FALLBACK_IF(ctx->Polygon.SmoothFlag); // GL_POLYGON_SMOOTH disabling to get blender going
 	FALLBACK_IF(ctx->Polygon.StippleFlag); // GL_POLYGON_STIPPLE
 	FALLBACK_IF(ctx->Multisample.Enabled); // GL_MULTISAMPLE_ARB
+	
+	FALLBACK_IF(ctx->RenderMode != GL_RENDER);  // We do not do SELECT or FEEDBACK (yet ?)
 
 #if 0 /* ut2k3 fails to start if this is on */
 	/* One step at a time - let one texture pass.. */

src/mesa/drivers/dri/r300/r300_state.c

@@ -2272,6 +2272,13 @@ void r300InitState(r300ContextPtr r300)
 	r300ResetHwState(r300);
 }
 
+static void r300RenderMode( GLcontext *ctx, GLenum mode )
+{
+   r300ContextPtr rmesa = R300_CONTEXT(ctx);
+   WARN_ONCE("TODO: fallback properly when rendering mode is not GL_RENDER\n"
+   	     "\tThe way things are now neither selection nor feedback modes work\n")
+//   FALLBACK( rmesa, R300_FALLBACK_RENDER_MODE, (mode != GL_RENDER) );
+}
 
 /**
  * Initialize driver's state callback functions
@@ -2307,5 +2314,7 @@ void r300InitStateFuncs(struct dd_function_table* functions)
 
 	functions->PolygonOffset = r300PolygonOffset;
 	functions->PolygonMode = r300PolygonMode;
+	
+   	functions->RenderMode = r300RenderMode;
 }