From 795d8dff89c7e6841f61e3b9851de95765f4d001 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Wed, 29 Jun 2016 15:17:16 -0700
Subject: glsl: Document and enforce restriction on type values

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
---
 src/compiler/glsl_types.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/compiler/glsl_types.h')

diff --git a/src/compiler/glsl_types.h b/src/compiler/glsl_types.h
index c3a0185..7c4827d 100644
--- a/src/compiler/glsl_types.h
+++ b/src/compiler/glsl_types.h
@@ -47,6 +47,9 @@ _mesa_glsl_release_types(void);
 #endif
 
 enum glsl_base_type {
+   /* Note: GLSL_TYPE_UINT, GLSL_TYPE_INT, and GLSL_TYPE_FLOAT must be 0, 1,
+    * and 2 so that they will fit in the 2 bits of glsl_type::sampled_type.
+    */
    GLSL_TYPE_UINT = 0,
    GLSL_TYPE_INT,
    GLSL_TYPE_FLOAT,
-- 
cgit v1.1