From dd245016657c599ecf24c4abe999319f9c870c47 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Tue, 20 Oct 2009 10:58:14 -0700
Subject: [PATCH] ARB prog parser: Fix parameter array size comparison

Array indexes are invalid when >= the maximum, but array sizes are
only in valid when > the maximum.  This prevented programs from
declaring a single maximum size array.

See the piglit vp-max-array test.
---
 src/mesa/shader/program_parse.tab.c | 2 +-
 src/mesa/shader/program_parse.y     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/shader/program_parse.tab.c b/src/mesa/shader/program_parse.tab.c
index 9f2d4de90fc..c255e912ed2 100644
--- a/src/mesa/shader/program_parse.tab.c
+++ b/src/mesa/shader/program_parse.tab.c
@@ -3109,7 +3109,7 @@ yyreduce:
 /* Line 1455 of yacc.c  */
 #line 1041 "program_parse.y"
     {
-	   if (((yyvsp[(1) - (1)].integer) < 1) || ((unsigned) (yyvsp[(1) - (1)].integer) >= state->limits->MaxParameters)) {
+	   if (((yyvsp[(1) - (1)].integer) < 1) || ((unsigned) (yyvsp[(1) - (1)].integer) > state->limits->MaxParameters)) {
 	      yyerror(& (yylsp[(1) - (1)]), state, "invalid parameter array size");
 	      YYERROR;
 	   } else {
diff --git a/src/mesa/shader/program_parse.y b/src/mesa/shader/program_parse.y
index 06c1915fbee..ae9e15ae5ae 100644
--- a/src/mesa/shader/program_parse.y
+++ b/src/mesa/shader/program_parse.y
@@ -1039,7 +1039,7 @@ optArraySize:
 	}
 	| INTEGER
         {
-	   if (($1 < 1) || ((unsigned) $1 >= state->limits->MaxParameters)) {
+	   if (($1 < 1) || ((unsigned) $1 > state->limits->MaxParameters)) {
 	      yyerror(& @1, state, "invalid parameter array size");
 	      YYERROR;
 	   } else {
-- 
2.30.2