From: Eric Anholt <eric@anholt.net>
Date: Tue, 1 May 2012 21:43:31 +0000 (-0700)
Subject: glsl: Don't resize arrays in uniform blocks.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9feb403b0eb5365889cb01ca456a19247aaad502;p=mesa.git

glsl: Don't resize arrays in uniform blocks.

This is a requirement for std140 uniform blocks, and optional for
packed/shared blocks.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
---

diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 7fbd834ab66..dd2278545d8 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -1165,6 +1165,13 @@ update_array_sizes(struct gl_shader_program *prog)
 	     !var->type->is_array())
 	    continue;
 
+	 /* GL_ARB_uniform_buffer_object says that std140 uniforms
+	  * will not be eliminated.  Since we always do std140, just
+	  * don't resize arrays in UBOs.
+	  */
+	 if (var->uniform_block != -1)
+	    continue;
+
 	 unsigned int size = var->max_array_access;
 	 for (unsigned j = 0; j < MESA_SHADER_TYPES; j++) {
 	       if (prog->_LinkedShaders[j] == NULL)