From 6befdca6a3d65d7e49c0c54a7a8f091cd05034ea Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 2 Jul 2008 09:16:10 -0600
Subject: generate a link error if the vertex shader references too many
 textures

---
 src/mesa/shader/slang/slang_link.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src')

diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index dd4990ba02..f9a5ecef96 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -474,6 +474,12 @@ _slang_link(GLcontext *ctx,
       }         
    }
 
+   /* Check that the vertex program doesn't use too many sampler units */
+   if (shProg->VertexProgram &&
+       _mesa_bitcount(shProg->VertexProgram->Base.SamplersUsed) > ctx->Const.MaxVertexTextureImageUnits) {
+      link_error(shProg, "Vertex program uses too many samplers.\n");
+      return;
+   }
 
    if (fragProg && shProg->FragmentProgram) {
       /* notify driver that a new fragment program has been compiled/linked */
-- 
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