mesa: add debug printer for primitive name

Add a simple version of _mesa_lookup_enum_by_nr() which expects a primitive
enum (GL_POINTS..GL_POLYGON).  This avoids some annoying duplicates
when looking up primitives, such as the GL_FALSE/GL_POINTS clash.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/mesa/main/enums.c b/src/mesa/main/enums.c
index cf893fdac5..417cee8fb2 100644
--- a/src/mesa/main/enums.c
+++ b/src/mesa/main/enums.c
@@ -5059,6 +5059,28 @@ const char *_mesa_lookup_enum_by_nr( int nr )
    }
 }
 
+/* Get the name of an enum given that it is a primitive type.  Avoids
+ * GL_FALSE/GL_POINTS ambiguity and others.
+ */
+const char *_mesa_lookup_prim_by_nr( int nr )
+{
+   switch (nr) {
+   case GL_POINTS: return "GL_POINTS";
+   case GL_LINES: return "GL_LINES";
+   case GL_LINE_STRIP: return "GL_LINE_STRIP";
+   case GL_LINE_LOOP: return "GL_LINE_LOOP";
+   case GL_TRIANGLES: return "GL_TRIANGLES";
+   case GL_TRIANGLE_STRIP: return "GL_TRIANGLE_STRIP";
+   case GL_TRIANGLE_FAN: return "GL_TRIANGLE_FAN";
+   case GL_QUADS: return "GL_QUADS";
+   case GL_QUAD_STRIP: return "GL_QUAD_STRIP";
+   case GL_POLYGON: return "GL_POLYGON";
+   case GL_POLYGON+1: return "OUTSIDE_BEGIN_END";
+   default: return "<invalid>";
+   }
+}
+
+
 int _mesa_lookup_enum_by_name( const char *symbol )
 {
    enum_elt * f = NULL;