added assertion to catch infinite loop in _tnl_fixup_compiled_cassette() - might...

diff --git a/src/mesa/tnl/t_imm_fixup.c b/src/mesa/tnl/t_imm_fixup.c
index 1c3cf2861c5037ae5a59e9bfcbe15e5c6bdcf220..8bf0982a8480f45e83c59fdad2b12a542531284f 100644 (file)
--- a/src/mesa/tnl/t_imm_fixup.c
+++ b/src/mesa/tnl/t_imm_fixup.c
@@ -1,4 +1,4 @@
-/* $Id: t_imm_fixup.c,v 1.13 2001/04/30 21:08:52 keithw Exp $ */
+/* $Id: t_imm_fixup.c,v 1.14 2001/05/03 16:11:16 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -631,7 +631,9 @@ void _tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
         if (tnl->ExecParity)
            IM->Primitive[IM->CopyStart] |= PRIM_PARITY;
 
-
+         /* one of these should be true, else we'll be in an infinite loop */
+         assert(IM->PrimitiveLength[IM->Start] > 0 ||
+                IM->Flag[IM->Start] & (VERT_END|VERT_END_VB));
         for (i = IM->Start ; i <= IM->Count ; i += IM->PrimitiveLength[i])
            if (IM->Flag[i] & (VERT_END|VERT_END_VB)) {
               IM->PrimitiveLength[IM->CopyStart] = i - IM->CopyStart;