Mesa (master): glsl: mark uniform and input interface blocks as read only

[Timothy Arceri]

Module: Mesa
Branch: master
Commit: 2cb149c2894679c5c7af81b40277f77cc0fb099d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2cb149c2894679c5c7af81b40277f77cc0fb099d

Author: Timothy Arceri <t_arceri at yahoo.com.au>
Date:   Fri Mar 27 23:03:40 2015 +1100

glsl: mark uniform and input interface blocks as read only

Reviewed-by: Mark Janes <mark.a.janes at intel.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/glsl/ast_to_hir.cpp |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index d387b2e..036ec17 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -5776,6 +5776,9 @@ ast_interface_block::hir(exec_list *instructions,
       var->data.matrix_layout = matrix_layout == GLSL_MATRIX_LAYOUT_INHERITED
          ? GLSL_MATRIX_LAYOUT_COLUMN_MAJOR : matrix_layout;
 
+      if (var_mode == ir_var_shader_in || var_mode == ir_var_uniform)
+         var->data.read_only = true;
+
       if (state->stage == MESA_SHADER_GEOMETRY && var_mode == ir_var_shader_in)
          handle_geometry_shader_input_decl(state, loc, var);
 
@@ -5816,6 +5819,9 @@ ast_interface_block::hir(exec_list *instructions,
          var->data.sample = fields[i].sample;
          var->init_interface_type(block_type);
 
+         if (var_mode == ir_var_shader_in || var_mode == ir_var_uniform)
+            var->data.read_only = true;
+
          if (fields[i].matrix_layout == GLSL_MATRIX_LAYOUT_INHERITED) {
             var->data.matrix_layout = matrix_layout == GLSL_MATRIX_LAYOUT_INHERITED
                ? GLSL_MATRIX_LAYOUT_COLUMN_MAJOR : matrix_layout;