X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fvalidate.cpp;h=4c135892056c1e82b3c33ca0536232202a05ac69;hb=abcd1fa06f9fab27c5934b4069523dd009862b18;hp=d669b2370e08bbb9032d02d308a6377210dd0fa4;hpb=30c7ba8f7fd08c13562c86bf651bdc3ec8d30ab5;p=libs%2Fgl.git

diff --git a/source/glsl/validate.cpp b/source/glsl/validate.cpp
index d669b237..4c135892 100644
--- a/source/glsl/validate.cpp
+++ b/source/glsl/validate.cpp
@@ -39,6 +39,27 @@ void DeclarationValidator::apply(Stage &s, const Features &f)
 	stage = &s;
 	features = f;
 	s.content.visit(*this);
+
+	Node *global_err_node = 0;
+	auto i = s.functions.find("main()");
+	if(i!=s.functions.end())
+		global_err_node = i->second;
+	else
+	{
+		for(auto j=s.content.body.begin(); (!global_err_node && j!=s.content.body.end()); ++j)
+			if((*j)->source>0)
+				global_err_node = j->get();
+	}
+
+	if(s.type==Stage::GEOMETRY)
+	{
+		if(!have_input_primitive)
+			error(*global_err_node, "No primitive type qualifier found on input");
+		if(!have_output_primitive)
+			error(*global_err_node, "No primitive type qualifier found on output");
+		if(!have_output_vertex_count)
+			error(*global_err_node, "No vertex count qualifier found on output");
+	}
 }
 
 const char *DeclarationValidator::describe_variable(ScopeType scope)
@@ -118,21 +139,36 @@ void DeclarationValidator::visit(Layout &layout)
 		{
 			allowed = (stage->type==Stage::GEOMETRY && iface_layout && (iface_layout->interface=="in" || iface_layout->interface=="out"));
 			value = false;
+			if(allowed)
+			{
+				if(iface_layout->interface=="in")
+					have_input_primitive = true;
+				else if(iface_layout->interface=="out")
+					have_output_primitive = true;
+			}
 		}
 		else if(q.name=="lines" || q.name=="lines_adjacency" || q.name=="triangles" || q.name=="triangles_adjacency")
 		{
 			allowed = (stage->type==Stage::GEOMETRY && iface_layout && iface_layout->interface=="in");
 			value = false;
+			if(allowed)
+				have_input_primitive = true;
 		}
 		else if(q.name=="line_strip" || q.name=="triangle_strip")
 		{
 			allowed = (stage->type==Stage::GEOMETRY && iface_layout && iface_layout->interface=="out");
 			value = false;
+			if(allowed)
+				have_output_primitive = true;
 		}
 		else if(q.name=="invocations")
 			allowed = (stage->type==Stage::GEOMETRY && iface_layout && iface_layout->interface=="in");
 		else if(q.name=="max_vertices")
+		{
 			allowed = (stage->type==Stage::GEOMETRY && iface_layout && iface_layout->interface=="out");
+			if(allowed)
+				have_output_vertex_count = true;
+		}
 		else if(q.name=="std140" || q.name=="std430")
 		{
 			allowed = (iface_block && !variable && iface_block->interface=="uniform");