Module: Mesa
Branch: master
Commit: 9feb403b0eb5365889cb01ca456a19247aaad502
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=9feb403b0eb5365889cb01ca456a19247aaad502

Author: Eric Anholt <[email protected]>
Date:   Tue May  1 14:43:31 2012 -0700

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 <[email protected]>

---

 src/glsl/linker.cpp |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 7fbd834..dd22785 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)

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